20 to securely mount to the support base 1 and locate at an optimal position for coordinated operation with the first massage portion 10.

Upon activation of the sex toy, the drive mechanism 50 is initially activated to drive the clamping mechanism 40 to move along the axial direction of the support base 1, which enables the at least one first roller 30 and the at least one second roller 30 to be positioned corresponding to an extended range in the axial direction, thereby applicable for different lengths of penises.

Simultaneously, the clamping mechanism 40 operates according to preset programming or user input, and the at least one first roller 30 and the at least one second roller 30 is stably driven by the clamping mechanism 40 to move along the lateral direction of the support base 1. Such radial movement can adjust the size of the gap 30a between the at least one first roller 30 and the at least one second roller 30 so as to adapt for different penises with different radial dimensions. Through precise controlling the movement of the clamping mechanism 40, the at least one first roller 30 and the at least one second roller 30 can be adjusted to an optimal location, thereby providing an appropriate initial massage position for provide improved contact with various parts of the penis.

When the at least one first roller 30 and the at least one second roller 30 reach the target position, the massage action begins. Preferably, each massage roller 30 may incorporate a vibration motor therein, which generates vibrational energy for massaging penis. Additionally, each massage roller 30 may achieve a reciprocate motion through a cam mechanism driven by a motor, thereby simulating manual kneading actions like that in the embodiment shown in FIG. 1a through 1f. There is also another massage manner that may alternatively be employed, including but not limited to electromagnetic actuation to generate pulsed massage motions.

With respect to the second massage portion 20, when the penis is inserted into the massage cavity 21, the second massage portion 20 can operate independent from the first massage portion 20. The second massage portion 20 may include elements disposed on the inner wall of the massage cavity 21 to provide the stimulation. The elements may include air bags, massage balls or the like, which operate through inflation, deflation, or rotational motion to provide massage for the penis within the massage cavity 21.

For example, when air bags are implemented, an air pump is employed to alternatively inflate and deflate the chambers of the air bags, whereby the expansion and contraction of the chambers generate cyclical compressive and decompressive massage effects on the penis. Alternatively, when massage balls are implemented, an electric motor may drive the balls to rotate or vibrate, thereby providing frictional stimulation on the penis.

Preferably, the second massage portion 20 is made of a flexible material, enabling a better fit for the contour of the penis, thereby enhancing the user comfort during massage. In addition, the second massage portion 20 may be driven by a driving element, which includes, but is not limited to, a vibration generator for driving the second massage portion 20 to vibrate, a rotational actuator for driving the second massage portion 20 to rotate, a linear actuator for driving the second massage portion 20 to reciprocate axially, or a vacuum system for creating negative pressure within the massage cavity 21 of the second massage portion 20.

In some embodiments, the sex toy of the present disclosure achieves multi-stimulation for the penis through the cooperation between the first massage portion 10 and the second massage portion 20, thereby providing a more diversified massage experience.

In some embodiments, the drive mechanism 50 and clamping mechanism 40 in the first massage portion 10 can flexibly adjust the position of the at least one first roller and 30 the at least one second roller 30, enabling the at least one first roller 30 and the at least one second roller 30 to move both axially and radially. This allows precise adjustment according to different users' penis length and thickness, improving the adaptability and personalization of the massage, expanding the applicable population range, and better satisfying the needs of different users.

In some embodiment, the at least one first roller 30 and the at least one second roller 30 can employ multiple massage modes, increasing the effectiveness of the massage. For example, through the combination of various massage modes such as vibration, kneading, and pulsation, the sexual stimulation effect can be further enhanced.

In some embodiment, the massage cavity 21 design of the second massage portion 20 can provide better positioning and fixation for the penis, improving the precision of the massage. Meanwhile, the internal massage mechanism of the second massage portion 20 can perform targeted massage according to different parts of the penis. The second massage portion 20 cooperates with the first massage portion 10, which forms a relatively complete penis massage system, making the massage more comprehensive and integrated, and further enhancing comfort and sexual stimulation effects.

Furthermore, the drive mechanism 50 is arranged to the axial direction of the support base 1, enabling the first massage portion 10 to move precisely along the axial direction, which can better adapt to the penises of different lengths, and ensure that the at least one first roller 30 and the at least one second roller 30 can cover the entire range of penis lengths for massaging. As a result, it greatly improves the applicability of the sex toy and meets the individual needs of different users.

In one embodiment, the support base 1 is provided with a partition 11. The second massage portion 20 and each massage roller 30 are arranged above the partition 11, and the drive mechanism 50 and clamping mechanism 40 are arranged below the partition 11. The partition 11 is provided with a groove 111 corresponding to each massage roller 30, for providing moving space for the massage rollers 30. Specifically, the partition 11 is fixed to the support base 1 and divides the massage space 1a of the support base 1 into an upper part and a lower part. The partition 11 may be connected to the support base 1 by welding, screwing, snapping, or other means to form a stable structure, providing support and positioning base for other components.

The second massage portion 20 is arranged above the partition 11 and may be connected directly to the partition 11 or via a support structure to ensure a stable position. For example, the bottom of the second massage portion 20 may be fixed to upper surface of the partition 11 through bolts or clamping slots to prevent displacement during use. The position of the second massage portion 20 is determined based on the actual requirements of the penis massaging, so as to facilitate the insertion of the penis into its massage cavity 21 for massage. The height and orientation of the second massage portion 20 on the support base 1 should match the comfortable position of the penis inserted, thereby ensuring massage effects and users experience.

The drive mechanism 50 and the clamping mechanism 40 are positioned below the partition 11, which not only facilitates the concealment and protection of internal transmission components but also utilizes the partition 11 as a support structure to optimize the overall space layout of the device.

The groove 111 on the partition 11 is located below each massage roller 30 and provides space for the movement of each massage roller 30. The shape and size of the groove 111 are designed according to the motion range and track of each massage roller 30, ensuring that each massage roller 30 does not interfere with the partition 11 during radial movement. The groove 111 may be rectangular, circular, or other shapes, and its position and size are precisely matched with the motion range of each massage roller 30 to ensure smooth movement of each massage roller 30 above the partition 11 during operation. In some embodiments, two grooves 111 may be provided for the two massage rollers 30 respectively. In some embodiments, the two grooves 111 can be integrated as one groove 111, that is, only one groove 111 may be provided for both the two massage rollers 30.

In the embodiment shown in FIGS. 6 and 7, each massage roller 30 is connected to and driven by a massage motor assembly 31. The massage motor assembly 31 is arranged at a moving end 401 of the clamping mechanism 40. The massage roller 30 is connected to the output end of the massage motor assembly 31.

The massage motor assembly 31 may be fixed on the moving end 401 of the clamping mechanism 40 via bolts, snaps, or other fastening means to prevent loosening or displacement during operation. The moving end 401 of the clamping mechanism 40 is configured to drive the massage motor assembly 31 to move in the lateral direction of the support base 1, thereby allowing the massage motor assembly 31 to adjust its position following the movement of the clamping mechanism 40 to meet the massage requirements for different parts of the penis.

In the embodiments in which the massage rollers 30 are rotatable actively, the massage motor assembly 31 includes a first motor 312. The massage roller 30 may be mounted around the output shaft of the first motor 312 in a rotation-proof manner. That is, relative rotation between the massage roller 30 and the output shaft of the first motor 312 is prevented, such that rotation of the output shaft of the first motor 312 will cause synchronous rotation of the massage roller 30.

In some embodiments, the massage roller 30 may be fixedly mounted to the output shaft of the first motor 312 by means of a key, a pin, or the like to ensure that the torque from the first motor 312 can be effectively transmitted to the massage roller 30. Alternatively, the massage roller 30 may be fixed to the output shaft through interference fit or form-fitting.

After being connected to the output end of the first motor 312, the massage roller 30 can rotate under the drive of the first motor 312, thereby achieving stimulation on the penis.

In some embodiments, the massage motor assembly 31 may include a vibration motor 311. The massage roller 30 can be connected to the vibrating part of the vibration motor 311. The vibrations generated by the vibration motor 311 are transmitted to the massage roller 30 through a specific connecting structure, causing it to generate corresponding vibration stimulation. When driven by the vibration motor 311, the massage roller 30 contacts the penis with high-frequency vibrations, stimulating the penis through the impact force and frequency variations of the vibrations.

In some embodiments, as shown in FIGS. 13 and 14, the massage motor assembly 31 includes a vibration motor 311, a first motor 312, and a first motor gearbox 313. The vibration motor 311, first motor 312, and first motor gearbox 313 are all located within the massage roller 30 and are arranged one after another along a direction away from the moving end 401. The first motor 312 drives the massage roller 30 to rotate through the first motor gearbox 313.

In some embodiments, each massage roller 30 may include a rigid rolling core 32, and a flexible layer 33. The flexible layer 33 is made of a flexible material and is wrapped over the rolling core 32. Specifically, by providing the flexible layer 33 on the surface of the rolling core 32, a soft contact is provided to the penis, which increases the comfort of the user and improves the user experience. In addition, the flexible layer 33 may be provided with protrusions or textures on its surface, which can increase friction and therefore enhance the stimulating effect. Specifically, in the embodiment shown in FIG. 12, the surface of the flexible layer 33 is provided with a plurality of ribs spaced apart along its rotational direction.

In some embodiments, the massage roller 30 is tubular. Preferably, a diameter of the massage roller 30 at a middle part is smaller than a diameter of the massage roller 30 at two end parts. During the massage process, the penis is contacted with the massage roller 30, which unique structure of a smaller middle diameter compared to the ends allows it to better conform to the contour of the penis, thereby increasing the contact area with the penis and improving the wrapping sensation. In one embodiment shown in FIGS. 6 and 7, the rolling core 32 contributes the varied diameter of the massage roller 30, and the flexible layer 33 has a constant thickness. It should be understood that, in other embodiments, it may be the flexible layer 33 that contributes the varied diameter of the massage roller 30, in which case the rolling core 32 may have a constant diameter.

In other embodiments, the massage roller 30 may alternatively be shaped as a sphere or ellipsoid, for example, as shown in FIG. 11.

In this embodiment, as shown in FIGS. 4 to 7, the clamping mechanism 40 is located at one side of the support base 1. The clamping mechanism 40 includes a base plate 41, a clamping actuator 42, and a first transmission assembly 43. The base plate 41 serves as the foundation for carrying the clamping mechanism 40. Specifically, the base plate 41 carries both the clamping actuator 42 and the first transmission assembly 43. The clamping actuator 42 is arranged on the base plate 41. The first transmission assembly 43 connects an output end of the clamping actuator 42 to the at least one first roller 30 and the at least one second roller 30. The at least one first roller 30 and the at least one second roller 30 are able to move along a lateral direction of the support base 1 by the clamping actuator 42 and the first transmission assembly 43.

The clamping mechanism 40 drives at least two massage rollers 30 to move along the lateral direction of the support base 1 through the clamping actuator 42 and the first transmission assembly 43, thereby adjust the gap 30a between the massage rollers 30.

The drive mechanism 50 is arranged along the axial direction of the support base 1 and drives the entire clamping mechanism 40 to move axially. The drive mechanism 50 has a moving end 501 connected to the base plate 41. The moving end 501 of the drive mechanism 50 serves as a torque output end that drives the base plate 41 and other components mounted thereon to move together. This allows the entire clamping mechanism 40 to adjust its position in the axial direction to accommodate different lengths of the penises and meet various massage requirements.

Under the action of the clamping mechanism 40 and the drive mechanism 50, the positions of the massage rollers 30 can be adjusted radially and axially to achieve precise massage on different parts of the penis.

Specifically, the clamping actuator 42 includes a second motor 421 and a second motor gearbox 422. Both the second motor 421 and the second motor gearbox 422 are mounted on the base plate 41. The second motor gearbox 422 is connected to both the second motor 421 and the first transmission assembly 43.

In particular, both the second motor 421 and the second motor gearbox 422 may be mounted on the base plate 41 via bolts to prevent loosening or displacement during operation of the sex toy. One end of the second motor gearbox 422 is connected to the output shaft of the second motor 421, preferably through a coupling to ensure coaxial alignment and efficient torque transmission. The other end of the second motor gearbox 422 is connected to the first transmission assembly 43 and transmits the torque to the first transmission assembly 43 through transmission components such as gears, chains, belts or the like. This configuration enables the second motor gearbox 422 to regulate speed and torque between the second motor 421 and the first transmission assembly 43, meeting various movement requirements of at least two massage rollers 30.

The base plate 41 is connected to the moving end 501 of the drive mechanism 50, allowing the base plate 41 to move axially along the support base 1 when driven by the drive mechanism 50. Therefore, the at least one first roller 30 and the at least one second roller 30 disposed on the base plate 41 and connected to the first transmission assembly 43 can achieve both axial movement and radial horizontal movement along the support base 1 when driven by the clamping actuator 42 and the drive mechanism 50.

In one embodiment, the at least one first roller 30 and the at least one second roller 30 includes two massage rollers 30. The clamping mechanism 40 is configured to drive the two massage rollers 30 to perform sliding movements towards or away from each other along a direction at an angle to the axial direction.

Furthermore, the first transmission assembly 43 includes a gear 431, a first rack 432, and a second rack 433. The gear 431 is connected to an output end of the clamping actuator 42, the first rack 432 and the second rack 433 are respectively arranged opposite each other along a vertical direction of the support base 1 and both are meshed with the gear 431, each of the first rack 432 and the second rack 433 is arranged with one massage roller 30. Specifically, the gear 431 is tightly connected to the output end of the clamping actuator 42 through a key connection or coupling connection, ensuring stable and efficient torque transmission to the gear 431.

The clamping actuator 42 is fixed on the base plate 41, and the gear 431 is connected to the output end of the clamping actuator 42. The first rack 432 and the second rack 433 are arranged in parallel, positioned respectively on upper and lower sides of the gear 431 and maintained in meshing engagement therewith. Meanwhile, the two massage rollers 30 respectively located on the first rack 432 and the second rack 433 can perform sliding movements towards or away from each other along the lateral direction of the support base 1 under the driving of the gear 431. By cooperating with the second massage portion 20, they can achieve comprehensive massage for the penis.

Furthermore, an extension rod 434 is provided on a side of the gear 431 opposite to the clamping actuator 42. One end of the extension rod 434 sequentially passing through the base plate 41 and the support base 1. Specifically, the distance, i.e., the gap 30a, between the two massage rollers 30 can be manually adjusted via the extension rod 434.

Furthermore, the base plate 41 is further provided with a sliding slot 411. A guide rail 412 is horizontally arranged in the sliding slot 411. One end of each massage roller 30 extends into the sliding slot 411 and is slidably connected to the guide rail 412. Specifically, each massage roller 30 can move within the area of the sliding slot 411 of the base plate 41 through the sliding connection with the guide rail 412. The guide rail 412 provides precise guidance for the movement of each massage roller 30, ensuring each massage roller 30 can accurately move along the lateral direction of the support base 1 to achieve precise positioning and massage for different parts of the penis.

In this embodiment, as shown in FIGS. 4 to 5, and 8 to 10, the drive mechanism 50 includes a drive assembly 51, a second transmission assembly 52, and a slider 53. The output end of the drive assembly 51 is connected to the second transmission assembly 52. The slider 53 is connected to the second transmission assembly 52 and can be driven to move horizontally along the axial direction of the support base 1.

Specifically, the second transmission assembly 52 is connected between the drive assembly 51 and the slider 53, serving to transmit and convert torque. The slider 53, served as the moving end 501 of the drive mechanism 50, is connected to the base plate 41. The clamping mechanism 40 mounted on the base plate 41 moves in the axial direction of the support base 1 along with the movement of the slider 53. Preferably, the drive mechanism 50 is configured to drive the clamping mechanism 40 to perform reciprocate motion along the axial direction. The second massage portion 20 is disposed to the support base 1 and cooperates with the first massage portion 10 to perform massage for the penis.

Furthermore, the drive assembly 51 includes a third motor 511 and a third motor gearbox 512. Both the third motor 511 and the third motor gearbox 512 are arranged to the support base 1. The third motor gearbox 512 is connected to the third motor 511 and the second transmission assembly 52. Specifically, one end of the third motor gearbox 512 is connected to the output shaft of the third motor 511, preferably through a coupling to ensure coaxial alignment and efficient torque transmission. The other end of the third motor gearbox 512 is connected to the second transmission assembly 43 and transmits the torque output by the third motor gearbox 512 to the second transmission assembly 52.

Furthermore, the second transmission assembly 52 includes a lead screw 521 and a sleeve 522. The lead screw 521 is arranged inside the sleeve 522 and is rotatable relative to the sleeve 522. The sleeve 522 is provided with an elongated groove 5221 extending in the axial direction of the support base 1. The elongated groove 5221 penetrates the wall of the sleeve 522 at one side to expose the lead screw 521. The lead screw 521 is connected to an output end of the drive assembly 51 and is rotatable under driving of the drive assembly 51. One end of the slider 53 extends through the elongated groove 5221 of the sleeve 522 and engaged with a threaded groove 5211 of the lead screw 521. When the lead screw 521 rotates, the slider 53 engaged with the threaded groove 5211 is driven by the lead screw 521. Due to the restriction of the elongated groove 5221 of the sleeve 522, the slider 53 will slide along the elongated groove 5221 of the sleeve 522.

Preferably, the lead screw 521 is disposed within the sleeve 522 with a certain clearance, which ensures that the lead screw 521 can rotate freely within the sleeve 522. The clearance engagement between the slider 53 and the sleeve 522 not only allows axial movement of the slider 53 relative to the sleeve 522 but also prevents excessive wobbling during motion.

One end of the slider 53 is engaged the threaded groove 5211 of the lead screw 521, which achieves a threaded transmission between them. Simultaneously, the slider 53 is also constrained and guided by the elongate groove 5221 during movement. The lead screw 521 and the sleeve 522 employed by the second transmission assembly 52 enables the slider 53 to move precisely, thereby achieving more accurate positional adjustment for each massage roller 30 along the axial direction of the support base 1. This precise control capability achieves accurate massage operation for penises with the different lengths, meeting personalized needs for various users. The structure of the second transmission assembly 52 is relatively compact. The arrangement of the lead screw 521 positioned inside the sleeve 522 and the slider 52 disposed outside the sleeve 522, optimizes space utilization and reduces the volume of the sex toy. Moreover, the connection manners between components are simple and convenient to assemble and disassemble, so that the lead screw 521, the sleeve 522 and the slider 53 can be easily inspected, cleaned and replaced, reducing difficulty and cost during maintenance.

Furthermore, the slider 53 includes a sliding portion 531, a connecting portion 532, and a guiding portion 533. One end of the connecting portion 532 is connected to the sliding portion 531. The other end of the connecting portion 532 is connected to the clamping mechanism 40. The sliding portion 531 is mounted around the sleeve 522. The guiding portion 533 extends from the sliding portion 531. The free end of the guiding portion 533 away from the sliding portion 531 passes through the elongate groove 5221 and is engaged with the threaded groove 5211. Specifically, one end of the connecting portion 532 is fixedly connected to the sliding portion 531, the other end is connected to the base plate 41 of the clamping mechanism 40, which ensures a stable torque transmission from the drive mechanism 50 to the clamping mechanism 40.

Specifically, the free end of the guiding portion 533 passes through the elongate groove 5221 and slidably engages with the threaded groove 5211, thus converting rotation of the lead screw 521 into linear movement of the guiding portion 533 along the elongated groove 5221. Therefore, the sliding portion 531 and the connecting portion 532 connected to the guiding portion 533 slide with the guiding portions 533 along the extension direction of the elongated groove 5221, so as to drive the clamping mechanism 40 move linearly. The sliding portion 531 is mounted around the sleeve 522 with a clearance therebetween, ensuring a smooth axial movement relative to the sleeve 522 while restricting radial wobbling, thus ensuring the sliding stability of the slider 53.

The guiding portion 533 passes through the elongate groove 5221 and slidably engages with the threaded groove 5211, which achieves a threaded transmission between the slider 53 and the lead screw 521. Meanwhile, the elongate groove 5221 serves as a guide for the guide portion 533, ensuring that the slider 53 can only move in the axial direction of the sleeve 522. That is, when the lead screw 521 rotates, the elongate groove 5221 of the sleeve 522 restricts the guiding portion 533 from following the rotation of the lead screw 521, and the rotation of the lead screw 521 will drive the guiding portion 533 to slide within the threaded groove 5211, and the guiding portion 533 in turn drive the slider 53 to move in the axial direction along the lead screw 521, thereby transmitting the rotational movement of the lead screw 521 into the linear movement of the slider 53. By controlling the operation of the drive assembly 51, the rotation speed and direction of the lead screw 521 can be adjusted, thereby precisely controlling the movement speed and direction of the slider 53 for accurate adjusting the position of each massage roller 30.

Furthermore, the free end of the guiding portion 533 extending into the threaded groove 5211 is configured with an arc-shaped contour. Specifically, such arc-shaped contour conforming the contour of a segment of the threaded groove 5211 allows for optimal engagement with the threaded groove 5211 of the lead screw 521. That is, the crucial transmission connection between the guiding portion 533 and lead screw 521 is achieved by the insertion of the arc-shaped contour into the threaded groove 5211. The arc-shaped contour is able to slide smoothly within the threaded groove 5211 and effectively converts the rotation of the lead screw 521 into the linear movement of the guiding portion 533, which causes the linear movement of entire slider 53. The optimal engagement between the arc-shaped contour and the threaded groove 5211 reduces friction and jamming during transmission, ensuring a smooth torque transmission, thereby extending the service life of both the guiding portion 533 and the lead screw 521. Additionally, the stable operation of movement reduces damage risks to relative components, improving the operational reliability of the sex toy.

Furthermore, an outer periphery of the sleeve