CROSS-REFERENCE TO RELATED APPLICATIONS

The present application claims priority to Chinese Patent Application No. 202322262995.6, filed on Aug. 22, 2023, the entire contents of which are incorporated herein by reference.

TECHNICAL FIELD

The present application relates to the technical field of heaters, and in particular to a weatherproof outdoor heater.

BACKGROUND

Currently, there are two main types of outdoor heaters with ceramic structures that are popular on the market, the structures of which are roughly as follows: (1) the height-adjustable outdoor heaters consisting of a burner assembly on the head and a ceramic plate located inside the burner, a support rod assembly and an air supply assembly. The two ends of the support rod assembly are connected to the burner assembly and the air supply assembly respectively to adjust the heating height; (2) the outdoor heater that cannot adjust the height. This heater is placed on the bottom through a universal wheel. The burner assembly and the air supply assembly share a cylinder. The structure is compact and easy to carry. These two outdoor heaters introduce the gas into the burner through the air pipe connected to the gas bottle or other apparatus that stores gas, and use the burner for combustion to achieve heat supply. However, when these heaters are used outdoors and face outdoor emergencies such as wind, the air is blown into the burner, destroying the balance between the combustion speed and the air flow, which causes the cavity to be affected and flame out.

SUMMARY

The main purpose of the present application is to provide a weatherproof outdoor heater, aiming to prevent the burner from stalling when the outdoor heater faces unexpected situations such as wind or rain.

In order to achieve the above purpose, the weatherproof outdoor heater provided in the present application includes: a burner, an air supply assembly and a windproof net; a heat transferring port is provided on one side of the burner; the air supply assembly is connected to the burner; and the windproof net is connected to the burner and covers the heat transferring port.

In an embodiment, one side of the windproof net facing away from the burner is a convex arc surface.

In an embodiment, the weatherproof outdoor heater further includes a rainproof plate provided at a top of the burner, one end of the rainproof plate away from the burner protrudes from the windproof net, and at least part of the rainproof plate protruding from the windproof net forms a flow guiding surface.

In an embodiment, the burner includes a ceramic heat collecting plate provided with a heat conduction hole and provided inside the burner to separate the burner to form a combustion chamber and a heat conduction chamber, the combustion chamber is communicated with the heat conduction chamber through the heat conduction hole, and the heat transferring port is communicate with the heat conduction chamber; and the air supply assembly includes an air guiding tube, and a flow channel of the air guiding tube is communicated with the combustion chamber.

In an embodiment, a surface of the ceramic heat collecting plate is provided with a plurality of pyramid-shaped grooves with through holes, the pyramid-shaped grooves with through holes are spaced apart from each other on the ceramic heat collecting plate, and the heat conduction hole is provided in the pyramid-shaped grooves with through holes.

In an embodiment, the air supply assembly includes a gas bottle shield, a ventilating belt is provided around the gas bottle shield, the ventilating belt is communicated with an internal space of the gas bottle shield, and one side of the gas bottle shield is provided with an open/close door.

In an embodiment, a bottom of the gas bottle shield is provided with a universal wheel.

In an embodiment, the weatherproof outdoor heater further includes a burner height adjusting assembly, the burner height adjusting assembly includes an upper curved arm, a lower curved arm and a connecting bushing, the upper curved arm is sleeved in the lower curved arm, an upper end of the upper curved arm is connected to the burner, a lower end of the lower curved arm is connected to the air supply assembly, and the connecting bushing is configured to adjust a tightness state of the upper curved arm and the lower curved arm, so that the upper curved arm moves within the lower curved arm.

In an embodiment, the burner height adjusting assembly includes a reinforcing screw, a fixed reinforcement hole is provided at a same side of the upper curved arm and the lower curved arm, and the reinforcing screw is inserted into the fixed reinforcement hole.

In an embodiment, the weatherproof outdoor heater further includes a burner angle adjusting assembly, the burner angle adjusting assembly includes an angle adjusting handle, an angle adjusting shaft and two angle limiting apparatuses, the two angle limiting apparatuses are respectively provided on one side of the burner, the angle adjusting shaft is embedded in the burner, two ends of the angle adjusting shaft are respectively connected to the angle limiting apparatus, and two ends of the angle adjusting handle are respectively connected to the angle limiting apparatus.

In an embodiment, the weatherproof outdoor heater further includes a Venturi tube provided in the burner.

In an embodiment, the burner includes a spoiler provided with a plurality of spoiler holes and above a diffusing tube of the Venturi tube.

In an embodiment, the weatherproof outdoor heater further includes an ignition control apparatus, and the ignition control apparatus includes: a plasma igniting apparatus, an ignition protection apparatus and a flame ion; the plasma igniting apparatus includes a rotary switch, a plasma controller, an electrode rod and a mother fire tube, the rotary switch and the plasma controller are provided in the burner, and the electrode rod and the mother fire tube are provided on a same side of the burner; the ignition protection apparatus includes a safety valve and a tilt protection apparatus, the safety valve includes an air inlet end connected to the air supply assembly and an air outlet end provided at an ejecting tube of the Venturi tube; and the flame ion detecting probe is provided at a top of the electrode rod.

In the technical solution of the present application, the weatherproof outdoor heater includes a burner, an air supply assembly and an anti-flameout component. The windproof net is installed outside of the burner. When the wind blows through the windproof net, the windproof net can play a role in guiding the flow. On the one hand, changing the wind direction can reduce the amount of air blown into the burner, which may otherwise affect the combustion balance and cause flameout. On the other hand, it can prevent air from being blown into the burner, which may otherwise lower the internal temperature and cause flameout. At the same time, the wind blowing through the windproof net will reduce the wind speed to a certain extent and reduce the impact on the burner. Moreover, the net structure can also ensure that the air can enter to ensure the oxygen required for combustion. In the present application, the windproof net is provided outside the burner, so that the outdoor heater can be prevented from stalling when facing unexpected situations, such as the wind blowing.

BRIEF DESCRIPTION OF THE DRAWINGS

In order to illustrate the technical solutions in the embodiments of the present application or in the related art more clearly, the following briefly introduces the accompanying drawings required for the description of the embodiments or the related art. Obviously, the drawings in the following description are only part of embodiments of the present application. For those skilled in the art, other drawings can also be obtained according to the structures shown in these drawings without any creative effort.

FIG. 1 is a schematic three-dimensional structural view of a weatherproof outdoor heater according to an embodiment of the present application.

FIG. 2 is a schematic three-dimensional structural view of a weatherproof outdoor heater according to another embodiment of the present application.

FIG. 3 is a schematic three-dimensional structural view of a ceramic plate burner in the weatherproof outdoor heater according to an embodiment of the present application.

FIG. 4 is a cross-sectional view taken along line A-A in FIG. 3.

The realization of the objective, functional characteristics, and advantages of the present application are further described with reference to the accompanying drawings.

DETAILED DESCRIPTION OF THE EMBODIMENTS

The technical solutions of the embodiments of the present application will be described in more detail below with reference to the accompanying drawings. It is obvious that the embodiments to be described are only some rather than all of the embodiments of the present application. All other embodiments obtained by persons skilled in the art based on the embodiments of the present application without creative efforts shall fall within the scope of the present application.

It should be noted that all directional indications (such as up, down, left, right, front, back, etc.) in the embodiments of the present application are only used to explain the relative positional relationship, the movement situation, etc. among various assemblies under a certain posture as shown in the drawings. If the specific posture changes, the directional indication also changes accordingly.

In addition, the descriptions of “first”, “second”, etc. are only for the purpose of description, and should not be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature delimited with “first”, “second” may expressly or implicitly include at least one of that feature. Besides, the meaning of “and/or” appearing in the application includes three parallel scenarios. For example, “A and/or B” includes only A, or only B, or both A and B. In addition, the technical solutions between the various embodiments can be combined with each other, but must be based on the realization by those skilled in the art. When the combination of technical solutions is contradictory or cannot be realized, it should be considered that the combination of such technical solutions does not exist or fall within the scope of protection claimed in the present application.

The present application provides a weatherproof outdoor heater 1. As shown in FIG. 1 and FIG. 3, the weatherproof outdoor heater 1 includes a burner 11, an air supply assembly 14 and a windproof net 12. One side of the burner 11 is provided with a heat transferring port 11a, the air supply assembly 14 is connected to the burner 11, and the windproof net 12 is connected to an outside of the burner 11 and blocks the heat transferring port 11a.

In this embodiment, the heater is used outdoors. The burner 11 is made of common metal materials such as stainless steel. A windproof net 12 is installed outside the burner 11. When the wind blows through the windproof net 12, the windproof net 12 can guide the flow. On the one hand, changing the wind direction can reduce the amount of air blown into the burner 11, which may otherwise affect the combustion balance and cause flameout. On the other hand, it can prevent the air from being blown into the burner 11, which may otherwise lower the internal temperature and cause flameout. At the same time, the wind blowing through the windproof net 12 will reduce the wind speed to an extent and reduce the impact on the burner 11, and the net structure also ensures that air can enter to ensure the oxygen required for combustion. In the present application, the windproof net 12 is provided outside the burner 11, so that the outdoor heater can be prevented from stalling when facing unexpected situation such as the wind blowing.

In this embodiment, the burner 11 is in a box shape with closed connections on three sides and a heat transferring port 11a provided on one side. The combustion is carried out in the burner 11, and the heat is transferred to the surroundings. However, since the heat transferring port 11a is provided on one side, the expanded high-temperature gas is squeezed out from the heat transferring port 11a to transfer the heat out. It can be understood that the shape of the burner 11 is not specifically limited, as long as it meets the function.

The air supply assembly 14 mainly provides gas and has a gas bottle inside. The gas bottle is connected to the burner 11 through the air guiding tube 143 to provide gas. It can be understood that the shape of the air supply assembly 14 is not specifically limited, as long as it meets the function.

The windproof net 12 is located on one side of the burner 11 with the heat transferring port 11a, and blocks the heat transferring port 11a. The windproof net 12 can be detachably connected to the burner 11 through screw connections or hinges. The windproof net 12 can be a single-peak windproof net 12 or a multi-peak windproof net 12, and the shape is not specifically limited, as long as it meets the function.

In an embodiment of the present application, as shown in FIG. 4, one side of the windproof net 12 facing away from the burner 11 is a convex arc surface.

In this embodiment, the windproof net 12 is detachably connected to the outside of the burner 11 through hinges. One side of the windproof net 12 facing away from the burner 11 is a convex arc surface, forming a wind guiding surface. The wind guiding surface can change part of the airflow direction and reduce the force of the air on the burner 11.

In an embodiment of the present application, as shown in FIG. 1, the weatherproof outdoor heater 1 also includes a rainproof plate 13 provided at a top of the burner 11. One end of the rainproof plate 13 away from the burner 11 protrudes from the windproof net 12, and at least part of the rainproof plate 13 protruding from the windproof net 12 forms a flow guiding surface.

In this embodiment, a square rainproof plate 13 is provided on the top of the weatherproof outdoor heater 1. The rainproof plate 13 can be hinged, screwed or welded to the top of the burner 11. The rainproof plate 13 extends from the connection point with the burner 11 to the outside so that at least part of the rainproof plate 13 can protrude from the windproof net 12. The part of the rainproof plate 13 protruding from the windproof net 12 is bent downward to form a guiding portion. The protruding part can block the rain from blowing into the burner 11. The guiding portion can guide the rainwater to fall at an angle away from burner 11 to prevent the rainwater from entering burner 11.

In an embodiment of the present application, as shown in FIG. 3, the burner 11 includes a ceramic heat collecting plate 111. The ceramic heat collecting plate 111 is provided with a heat conduction hole and is provided inside the burner 11, so that the burner 11 is separated to form a combustion chamber and a heat conduction chamber. The combustion chamber is communicated with the heat conduction chamber through the heat conduction hole, and the heat transferring port 11a is communicated with the heat conduction chamber. The air supply assembly 14 includes an air guiding tube 143, and the flow channel of the air guiding tube 143 is communicated with the combustion chamber.

In this embodiment, a ceramic heat collecting plate 111 is installed inside the burner 11. The material of the ceramic heat collecting plate 111 is an infrared ceramic plate. The ceramic heat collecting plate 111 separates the inner cavity of the burner 11 to form the combustion chamber and the heat conduction chamber. The gas of the air supply assembly 14 is introduced into the combustion chamber through the flow channel of the air guiding tube 143, and the gas is burned in this chamber to provide heat. Through the heat conduction hole on the ceramic heat collecting plate 111, the combustion chamber is communicated with the heat conduction chamber, and the expanded hot gas flows to the heat transferring port 11a through the heat conduction hole. At the same time, with the heat conduction hole, more air can be absorbed during combustion and the combustion efficiency is improved. Since the thermal conductivity of the infrared ceramic plate is higher than that of the stainless steel, the heat can be quickly concentrated on the ceramic heat collecting plate 111. At the same time, the heat is transferred from high to low. With the heat conduction hole on the ceramic heat collecting plate 111, the heat in the combustion chamber can be quickly transferred to the heat conduction chamber, thereby transferring a a large amount of heat on the heat transferring port 11a and improving the thermal efficiency.

In an embodiment of the present application, the surface of the ceramic heat collecting plate 111 is provided with a plurality of pyramid-shaped grooves with through holes. Each of the pyramid-shaped grooves with through holes is spaced on the ceramic heat collecting plate 111. The heat conduction holes are provided on the pyramid-shaped grooves with through holes.

In this embodiment, the ceramic heat collecting plate 111 is provided with a plurality of pyramid-shaped grooves with through holes spaced apart, and the heat conduction holes are provided in the pyramid-shaped grooves with through holes and through the wall of the pyramid-shaped groove with through holes, so that the combustion chamber is communicated with the heat conduction chamber. The purpose of setting a pyramid-shaped groove with through hole on the ceramic heat collecting plate 111 is mainly to increase the heat absorption area, concentrate more heat, achieve one-way heat transfer, and improve thermal efficiency. Secondly, the pyramid-shaped groove with through hole and the heat conduction hole can increase the combustion surface area, allowing the fuel to contact more air during the combustion process, which improves the combustion efficiency and reduces the fuel waste.

In an embodiment of the present application, as shown in FIG. 1, the air supply assembly 14 includes a gas bottle shield 141 surrounded by a ventilating belt 14a. The ventilating belt 14a is communicated with the internal space of the gas bottle shield 141. One side of the gas bottle shield 141 is provided with an open/close door 142. In an embodiment, the bottom of the gas bottle shield 141 is provided with a universal wheel 144.

In this embodiment, the air supply assembly 14 includes a gas bottle shield 141. A cavity is formed inside the gas bottle shield 141, which can be configured to place a gas tank or other gas apparatus. The gas tank or other gas apparatus is connected to the burner 11 through an air guiding tube 143, and the gas is introduced into the combustion chamber for combustion. A ventilating belt 14a composed of triangles and prisms is provided around the outer wall of the gas bottle shield 141. The ventilating belt 14a is mainly provided to circulate air inside and outside the barrel to ensure that the air circulation inside the barrel, which prevents the accumulation of moisture and odor. An open/close door 142 is provided on one side of the gas bottle shield 141, which is connected to the gas bottle shield 141 through hinges. The open/close door 142 is mainly provided to facilitate the replacement of the gas tank or other gas apparatus. At the same time, four universal wheels 144 are provided at the bottom of the gas bottle shield 141 to facilitate the movement of the weatherproof outdoor heater 1.

In an embodiment of the present application, as shown in FIG. 1, the weatherproof outdoor heater 1 also includes a burner height adjusting assembly 16. The burner height adjusting assembly 16 includes an upper curved arm 161, a lower curved arm 162 and a connecting bushing 163. The upper curved arm 161 is sleeved in the lower curved arm 162. An upper end of the upper curved arm 161 is connected to the burner 11, and a lower end of the lower curved arm 162 is connected to the air supply assembly 14. The connecting bushing 163 is configured to adjust a tightness of the upper curved arm 161 and lower curved arm 162, so that the upper curved arm 161 moves within the lower curved arm 162.

In an embodiment, the burner height adjusting assembly 16 includes a reinforcing screw 164, the upper curved arm 161 and the lower curved arm 162 are both provided with a fixed reinforcement hole on the same side, and the reinforcing screw 164 is inserted into the fixed reinforcement hole.

In this embodiment, the burner height adjusting assembly 16 includes an upper curved arm 161, a lower curved arm 162 and a connecting bushing 163. The upper curved arm 161 is sleeved in the lower curved arm 162, and the air guiding tube 143 of the air supply assembly 14 is sleeved in the upper curved arm 161 and the lower curved arm 162. An upper end of the upper curved arm 161 is connected to the burner 11, a lower end of the lower curved arm 162 is connected to the gas bottle shield 141 of the air supply assembly 14, and the upper curved arm 161 is connected to the lower curved arm 162 by the connecting bushing 163. By adjusting the tightness of the connecting bushing 163, the upper curved arm 161 can move up and down in the space of the lower curved arm 162, making it convenient for the user to choose the appropriate heating height during use. At the same time, the curved arm structure can also make the burner 11 of the upper end face downwards to avoid some of the effects of wind and rain outside and allow the heat to be transferred downward to achieve a better heating effect. At the same time, a fixed reinforcement hole is provided on the side wall of the upper curved arm 161 and the lower curved arm 162, and a reinforcing screw 164 is inserted into the fixed reinforcement hole to strengthen the position fixation between the upper curved arm 161 and the lower curved arm 162, which further prevents the problem of the burner 11 falling due to the failure of the connecting bushing 163.

In an embodiment of the present application, as shown in FIG. 1, the weatherproof outdoor heater 1 also includes a burner angle adjusting assembly. The burner angle adjusting assembly includes an angle handle adjusting handle 171, an angle adjusting shaft 172, and two angle limiting apparatuses 173. The two angle limiting apparatuses 173 are respectively provided on one side of the burner 11, the angle adjusting shaft 172 is embedded in the burner 11 and both ends of the angle adjusting shaft 172 are connected to one of the angle limiting apparatuses 173, and both ends of the angle adjusting handle 171 are connected to one of the an angle limiting apparatuses 173.

In this embodiment, the burner angle adjusting assembly includes an angle adjusting handle 171, an angle adjusting shaft 172 and two angle limiting apparatuses 173. By rotating the angle adjusting handle 171 in the up and down direction, the angle adjusting shaft 172 is driven to rotate in the angle limiting apparatus 173. When the angle adjusting shaft 172 rotates to a certain angle, it is limited and fixed by bolts or other springs, so as to achieve the heating angle desired by the user. The initial angle of weatherproof outdoor heater 1 is defined as 0°. Through the burner angle adjusting assembly, the maximum angle that burner 11 can adjust in both up and down directions is 15°.

In an embodiment of the present application, as shown in FIG. 2, the weatherproof outdoor heater 1 is provided with a Venturi tube 15, and the Venturi tube 15 is provided in the burner 11.

In an embodiment, the burner 11 includes a spoiler 118 provided with a plurality of spoiler holes, and the spoiler 118 is located above the diffusing tube 152 of the Venturi tube 15.

In this embodiment, a Venturi tube 15 is provided inside the burner 11. The Venturi tube 15 is composed of a diffusing tube 152, an ejecting tube and a throat tube. The diffusing tube 152 is located in the combustion chamber, and the diffusing tube 152 is exposed outside the combustion chamber and is covered by the burner shield 19 of the burner 11. Holes for air circulation are provided outside of the burner shield 19. One end of the air guiding tube 143 of the air supply assembly 14 is connected to the gas tank or other gas apparatus, and the other end of the air guiding tube 143 of the air supply assembly 14 is inserted into the diffusing tube 152. A diameter of the diffusing tube 152 is larger than that of the air guiding tube 143 and the diffusing tube 152 gradually shrinks toward the throat tube. When the gas enters the diffusing tube 152 through the air guiding tube 143, the speed becomes faster, the air pressure decreases, the outside air is sucked into the diffusing tube 152 through the hole on the burner shield 19, and an inflation can be achieved in the diffusing tube 152. The mixed gas is quickly mixed in the throat tube and overflows toward the diffusing tube 152, and is burned in the combustion chamber. A spoiler 118 is provided at an air outlet of diffusing tube 152, and the spoiler 118 is connected to the wall of the diffusing tube 152 through hinges or bolts. The spoiler 118 is provided with a plurality of spoiler holes. The spoiler 118 can diffuse the mixed gas of the diffusing tube 152 to the entire combustion chamber, which increases the combustion area and further improves the combustion efficiency.

In an embodiment of the present application, as shown in FIG. 2, the weatherproof outdoor heater 1 includes an ignition control apparatus, and the ignition control apparatus includes: a plasma igniting apparatus, an ignition protection apparatus and a flame ion detecting probe 117.

The plasma igniting apparatus includes a rotary switch 112, a plasma controller 115, an electrode rod 113 and a mother fire tube 114. The rotary switch 112 and the plasma controller 115 are located in the burner 11, and the electrode rod 113 and the mother fire tube 114 are located at a same side of the burner 11.

The ignition protection apparatus includes a safety valve 116 and a tilt protection apparatus. The safety valve 116 includes an air inlet end and an air outlet end. The air inlet end is connected to the air supply assembly 14, and the air outlet end is located in the ejecting tube of the Venturi tube 15.

The flame ion detecting probe 117 is located above electrode rod 113.

In this embodiment, the weatherproof outdoor heater 1 mainly ignites through the plasma igniting apparatus. The rotary switch 112 and the plasma controller 115 are provided on one side of the burner 11 opposite the windproof net 12, the electrode rod 113 and the mother fire tube 114 are provided on one side of the burner 11, the electrode rod 113 and part of the mother fire tube 114 are inserted in the combustion chamber, and the plasma igniting apparatus is connected to each other through wires. The rotary switch 112 has four states: a shutdown position, an on-fire position, a big fire position and a soft fire position in a sequence of a counterclockwise rotation. When the rotary switch 112 is rotated to the on-fire position, the rotary switch 112 powers on the plasma controller 115. Under the control of the plasma controller 115, the electrode rod 113 can generate the electric spark at one end of the combustion chamber, and the electric spark ignites the mother fire tube 114 to generate the mother fire, thereby igniting the gas in the burner 11.

In an embodiment, the weatherproof outdoor heater 1 is also provided with an ignition protection apparatus. The ignition protection apparatus includes a safety valve 116 and a tilt protection apparatus. The air inlet end of the safety valve 116 is connected to the air guiding tube 143, and the air outlet end is inserted into the ejecting tube of the Venturi tube 15. The safety valve 116 is electrically connected to the plasma controller 115. When the rotary switch 112 is rotated to the on-fire position, the plasma controller 115 controls the safety valve 116 to conduct, and the gas enters the gas cavity along the air guiding tube 143. At the same time, a tilt protection apparatus is provided in the safety valve 116, including a tilt sensor, a controller and an actuator, which is configured to detect and prevent the weatherproof outdoor heater 1 from tilting. Further, the electrode rod 113 is also provided with a flame ion detecting probe 117. The flame ion detecting probe 117 is located at a top of the electrode rod 113 and is configured to detect whether the mother fire tube 114 is operating normally.

The above descriptions are only embodiments of the present application, and are not intended to limit the scope of the present application. Under the inventive concept of the present application, any equivalent structural transformations made by using the contents of the description and drawings of the present application, or direct/indirect applications in other related technical fields, are included in the scope of the present application.