Rotary telescopic mechanism and multi-functional massage device

Abstract

This invention provides a rotary-extension mechanism that combines rotational and telescopic movements, as well as a multi-functional massage device. [Solution] The rotary telescopic mechanism comprises a rotating cylinder 1, a telescopic rotating cylinder 2, and a support cylinder. The rotating cylinder and the telescopic rotating cylinder are arranged inside the support cylinder at intervals along the same axis. A first ring gear 4 is fixed to the rotating cylinder, and a second ring gear 5 is axially slidable attached to the telescopic rotating cylinder. A drive mechanism is arranged on the outside of the support cylinder, and the gears of the drive mechanism mesh with the first ring gear and the second ring gear, respectively. An axially extending guide groove 21 is formed on the outer circumferential surface of the telescopic rotating cylinder, and a positioning projection that slides and engages with the guide groove is provided on the inner circumferential surface of the second ring gear. An inclined guide groove 22 is formed on the outer circumferential surface of the telescopic rotating cylinder, extending along the circumferential direction and inclined along the axial direction of the telescopic rotating cylinder. A guide pin 31 is positioned through the side wall of the support cylinder, and the inner end of the guide pin is inserted into the inclined guide groove.

Description

Technical Field

[0001] The present invention belongs to the technical field of mechanical devices equipped with telescopic mechanisms, and particularly relates to a rotary telescopic mechanism and a multifunctional massage device.

Background Art

[0002] Telescopic devices are widely used in the mechanical field, and their telescopic forms and application purposes are diverse. For example, a rotary telescopic mechanism may be used in a rotary massage device. However, in conventional massage devices, many of them have a single-structured cylindrical member that moves only in one direction, resulting in a monotonous massage function and a poor user experience. Also, although there are examples of using a rotary telescopic mechanism in other fields, the structure is often complex, making it difficult to achieve a high-speed reciprocating telescopic motion, and there is a problem that the applicable scenarios are limited. The invention disclosed in publication number CN117100567B relates to a multifunctional massage device. It inserts the massage target part into a massage cylinder made of an elastic material, and by the elastic action of the massage cylinder, the elastic protrusions provided on the inner wall are brought into contact with the outer peripheral surface of the massage target part. In this state, by driving the telescopic member and the massage cylinder by a driving device to perform a telescopic motion, a frictional massage stimulus is given to the massage target part. Also, in the said invention, a configuration is proposed in which a suction pump and an electric control valve are operated to decompress the inside of the massage cylinder, so that after tightly binding the massage cylinder to the massage target part for a predetermined time, the electromagnetic valve is closed and outside air is introduced into the massage cylinder to release the tight binding state. Although the said invention can achieve a certain degree of diversification of the massage method by the tight binding operation, it cannot realize a motion form combining a rotational motion and a telescopic motion, has a limit in improving the body feeling during use, and has a problem that it is difficult to flexibly respond to different use scenarios.

Summary of the Invention

[0003] This invention was made to solve the problems of the prior art described above, and aims to provide a rotary extension mechanism and a multi-functional massage device. According to this invention, by combining rotational and extension movements, it is possible to respond to a variety of usage needs depending on the usage situation.

[0004] To achieve the above objective, the present invention employs the following technical configuration. The rotational extension mechanism of the present invention comprises a rotating cylinder, an extensional rotating cylinder, and a support cylinder. The rotating cylinder and the extensional rotating cylinder are arranged at intervals on the same axis inside the support cylinder. A first ring gear is fixed to the rotating cylinder, and a second ring gear is slidably mounted in the axial direction on the extensional rotating cylinder. A drive mechanism is arranged on the outside of the support cylinder, and a gear provided on the drive mechanism meshes with the first ring gear and the second ring gear, respectively. An axially extending guide groove is formed on the outer circumferential surface of the extensional rotating cylinder, and a positioning projection that slides and engages with the guide groove is provided on the inner circumferential surface of the second ring gear. Furthermore, an inclined guide groove extending along the circumferential direction is formed on the outer circumferential surface of the extensional rotating cylinder, and the inclined guide groove is provided at an angle along the axial direction of the extensional rotating cylinder. A guide pin is positioned through the side wall of the support cylinder, and the inner end of the guide pin is inserted into the inclined guide groove. According to this invention, a gear provided in the drive mechanism can rotate a first ring gear and a second ring gear that mesh with it. Since the first ring gear is fixed to the rotating cylinder, the rotating cylinder can perform rotational motion within the support cylinder. On the other hand, the second ring gear is slidably engaged with the guide groove of the telescopic rotating cylinder via a positioning projection. Therefore, when the second ring gear rotates, relative sliding occurs between the guide pin and the inclined guide groove. Furthermore, since the inclined guide groove is provided at an angle along the axial direction of the telescopic rotating cylinder and the position of the guide pin is relatively fixed, the telescopic rotating cylinder can move axially as it rotates, with the guide pin pushing the inclined guide groove. In other words, the telescopic rotating cylinder can perform axial extension and retraction motion simultaneously with rotational motion. By applying the rotational extension mechanism of this invention to a massage device, the rotating cylinder can provide a continuous rotational massage effect, and the telescopic rotating cylinder can provide a massage effect through reciprocating extension and retraction and synchronous rotation. This allows the user to obtain a variety of massage experiences, and at the same time, expands the range of applications of the rotational extension mechanism.

[0005] Preferably, the drive mechanism includes a gear mechanism housing, a motor, and a gear train. The gear mechanism housing is provided on the outside of the support cylinder, and the output shaft of the motor is fixed inside the gear mechanism housing and powered by a battery. The output shaft of the motor is driven-connected to the gear train, the first transmission gear of the gear train meshes with the first ring gear, and the second transmission gear of the gear train meshes with the second ring gear. To further explain, by transmitting the motor's rotation to the first and second ring gears via a gear train, production costs can be reduced without requiring an additional power source. Preferably, the gear train includes a worm wheel, a worm, and a rotating shaft. The worm is connected to the output shaft of the motor, and the rotating shaft is rotatably mounted within the housing. The worm wheel is fitted onto the rotating shaft and meshes with the worm. A first bevel gear is fitted onto the rotating shaft, and a coaxially arranged second bevel gear and a third bevel gear mesh with the first bevel gear. A first transmission shaft is connected to the second bevel gear, and the first transmission shaft passes through the gear mechanism housing and is connected to the first transmission gear. A second transmission shaft is connected to the third bevel gear, and the second transmission shaft passes through the gear mechanism housing and is connected to the second transmission gear. To explain further, by providing a first and second transmission shaft, the torque of the worm wheel and the first bevel gear can be flexibly transmitted to the second and third bevel gears. This improves the degree of freedom in the arrangement of the gear mechanism housing, the first ring gear, and the second ring gear, and enables a reduction in structural dimensions. Preferably, the inclined guide groove includes two annular ribs that are parallel to each other and spaced apart. The two annular ribs are wound along the outer circumference of the telescopic rotating cylinder, inclined in the axial direction. A guide pin is inserted between the two annular ribs. Two corresponding annular ribs are provided on each side of the two annular ribs, and these annular ribs are in contact with the inner wall of the support cylinder. The mounting positions of the annular ribs are set to separate the guide groove and the annular ribs from each other. To explain further, an inclined guide groove is formed by the two annular ribs and the outer surface of the telescopic rotating cylinder. The annular ribs are symmetrically arranged in a cross-section including the central axis of the telescopic rotating cylinder and are smoothly continuous. As a result, when the guide pin slides relative to the inclined guide groove, the telescopic rotating cylinder can be moved stably and at a constant speed along the axial direction, and the two annular ribs provide stable support for the telescopic rotating cylinder.

[0006] Furthermore, this invention provides a multifunctional massage device equipped with the aforementioned rotational extension mechanism, the multifunctional massage device comprising an outer shell, an upper cover, a rear cover, and a rotational extension mechanism. The rotational extension mechanism is provided within the outer shell, and the upper cover is rotatably opened and closed on the outer shell at a position corresponding to the end of the rotating cylinder. A vibrating massage unit is provided within the upper cover, and the upper cover can be held in position at multiple open angles, allowing the vibrating massage unit to perform massage at different angles. The rear cover is rotatably opened and closed on the outer shell at a position corresponding to the end of the retractable rotating cylinder. A first inner cylinder is fixed within the rotating cylinder, and a second inner cylinder is fixed within the retractable rotating cylinder. To further explain, the first inner cylinder rotates in sync with the rotating cylinder 1, and the second inner cylinder extends and rotates in sync with the telescopic rotating cylinder, and the vibration massage unit provides vibration massage to the tip of the area to be massaged, thereby enhancing the massage experience. Since the upper cover can be held in position at different opening angles, the vibration massage unit mounted on the upper cover rotates according to different angles as the upper cover opens, thereby providing different massage effects to the area to be massaged. Preferably, the vibration massage unit includes a silicone end cap, a vibration motor, and a motor housing. A fixing base is provided on the outer housing, and the upper cover and the silicone end cap are fixed via the fixing base. The silicone end cap has a plurality of massage protrusions on the rear end side near the rotating cylinder, and a storage space is formed on the front end side away from the rotating cylinder. The motor housing is provided within the storage space, and the vibration motor is provided within the motor housing and powered by a battery. To explain further, the vibration motor vibrates multiple massage protrusions, providing a continuous vibratory massage to the area being massaged. Preferably, the fixing base includes a first fixing member and a second fixing member. The first fixing member is fixed to the outer shell, and magnets are embedded inside the first and second fixing members, respectively, so that they are attracted and connected by magnetic force. The silicone end cap and the upper cover are attached to the second fixing member. To further explain, the first and second fixing members function as mounting bases for the silicone end cap and upper cover. The second fixing member is attracted to the first fixing member by a magnet, and when the external force acting on the second fixing member exceeds the magnetic force, the second fixing member rotates and opens together with the upper cover, thereby allowing the angle of the vibration massage unit to be adjusted. Preferably, a first fixed ring and a second fixed ring are fixed within the outer shell. The first ring gear is provided between the first fixed ring and the support cylinder, and the second ring gear is provided between the second fixed ring and the support cylinder. To explain further, the first fixed ring is used to position and restrict the first ring gear and the rotating cylinder, and the second fixed ring is used to position and restrict the end of the second ring gear and the telescopic rotating cylinder. Preferably, a first mounting hole is formed in the outer shell, and a push-button switch is provided in the first mounting hole. A first control board is connected to the inside of the push-button switch, a power supply housing is fixed inside the outer shell, and a battery is provided inside the power supply housing. The first control board is provided on the side of the power supply housing and is electrically connected to the battery. Preferably, a second mounting hole is formed in the outer shell, and a cover fixing member is provided inside the second mounting hole. A waterproof sealing member is provided between the cover fixing member and the second mounting hole. A viewing cover plate is attached to the cover fixing member, and a second control board is provided inside the viewing cover plate. A light-shielding member is provided between the viewing cover plate and the second control board, and a mounting seat is formed on the cover fixing member, with the end of the guide pin opposite to the inclined guide groove connected to the mounting seat. To further explain, waterproof sealing components are provided to prevent water from entering the massage device. In addition, rubber plugs are provided in the motor housing, power supply housing, and gear mechanism housing, ensuring overall waterproofness.

[0007] Effects of the invention: According to this invention, a gear provided in the drive mechanism can rotate a first ring gear and a second ring gear that mesh with it. Since the first ring gear is fixed to the rotating cylinder, the rotating cylinder can perform rotational motion within the support cylinder. On the other hand, the second ring gear is slidably engaged with the guide groove of the telescopic rotating cylinder via a positioning projection. Therefore, when the second ring gear rotates, relative sliding occurs between the guide pin and the inclined guide groove. Furthermore, since the inclined guide groove is provided at an angle along the axial direction of the telescopic rotating cylinder and the position of the guide pin is relatively fixed, the telescopic rotating cylinder can move axially as it rotates, with the guide pin pushing the inclined guide groove. In other words, the telescopic rotating cylinder can perform axial extension and retraction motion simultaneously with rotational motion. By applying the rotational extension mechanism of this invention to a massage device, the rotating cylinder can provide a continuous rotational massage effect, and the telescopic rotating cylinder can provide a massage effect through reciprocating extension and retraction and synchronous rotation. This allows the user to obtain a variety of massage experiences, and at the same time, expands the range of applications of the rotational extension mechanism. [Brief explanation of the drawing]

[0008] To more clearly explain the present invention or the technical means in the prior art, the following description will be given with reference to the drawings in a clear and easy-to-understand manner. Clearly, the drawings in the following description are only a few embodiments of the present invention, and those skilled in the art will be able to obtain other drawings in accordance with these without any creative effort. [Figure 1] Figure 1 is a structural diagram of the rotational extension mechanism. [Figure 2] Figure 2 is a structural diagram showing the rotational extension mechanism with the support cylinder removed. [Figure 3]Figure 3 is a structural diagram of a multi-functional massage device. [Figure 4] Figure 4 is a cross-sectional view of a multi-functional massage device. [Figure 5] Figure 5 is a diagram of the first internal structure of the multi-functional massage device. [Figure 6] Figure 6 is a first internal structure diagram of the multi-functional massage device viewed from a different perspective. [Figure 7] Figure 7 is a diagram of the second internal structure of the multi-functional massage device. [Figure 8] Figure 8 is a structural diagram of a multi-functional massage device with the top cover opened to a predetermined angle. [Modes for carrying out the invention]

[0009] The realization of the objective, functional features, and advantages of this invention will be described in detail below with reference to the attached drawings, using the embodiments shown. The technical means of embodiments of the present invention will be clearly and completely described below with reference to the drawings of the embodiments. Clearly, the embodiments described are only some, not all, embodiments of the present invention. All other embodiments that a person skilled in the art could obtain without ingenuity based on the embodiments of the present invention are within the scope of the present invention. In the description of this invention, unless otherwise specifically limited, terms such as "installation," "attachment," and "connection" shall be interpreted in a broad sense, and a person skilled in the art will be able to reasonably determine the specific meaning of such terms in this invention based on the technical means of this invention. In this specification, references to terms such as “one embodiment,” “some embodiments,” “example,” “specific example,” and “several examples” mean that the specific features, structures, materials, or properties described in relation to that embodiment or example are included in at least one embodiment or example of the present invention. Exemplary descriptions of these terms in this specification do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or properties described may be used in combination in any one or more embodiments or examples as appropriate.

[0010] As shown in Figures 1 and 2, the rotary telescopic mechanism of the present invention comprises a rotating cylinder 1, a telescopic rotating cylinder 2, and a support cylinder 3. The rotating cylinder 1 and the telescopic rotating cylinder 2 are arranged at intervals on the same axis inside the support cylinder 3. A first ring gear 4 is fixed to the rotating cylinder 1, and a second ring gear 5 is slidably mounted in the axial direction on the telescopic rotating cylinder 2. A drive mechanism 6 is arranged on the outside of the support cylinder 3, and the gears provided on the drive mechanism 6 mesh with the first ring gear 4 and the second ring gear 5, respectively. An axially extending guide groove 21 is formed on the outer circumferential surface of the telescopic rotating cylinder 2, and a positioning projection 51 that slides and engages with the guide groove 21 is provided on the inner circumferential surface of the second ring gear 5. Furthermore, an inclined guide groove 22 extending along the circumferential direction is formed on the outer circumferential surface of the telescopic rotating cylinder 2, and the inclined guide groove 22 is provided at an angle along the axial direction of the telescopic rotating cylinder 2. A guide pin 31 is positioned to pass through the side wall of the support cylinder 3, and the inner end of the guide pin 31 is inserted into the inclined guide groove 22. To further explain, the gears provided in the drive mechanism 6 can rotate the first ring gear 4 and the second ring gear 5 that mesh with them. Since the first ring gear 4 is fixed to the rotating cylinder 1, the rotating cylinder 1 can perform rotational motion within the support cylinder 3. On the other hand, the second ring gear 5 is slidably engaged with the guide groove 21 of the telescopic rotating cylinder 2 via a positioning projection 51. Therefore, when the second ring gear 5 rotates, relative sliding occurs between the guide pin 31 and the inclined guide groove 22. Furthermore, since the inclined guide groove 22 is provided at an angle along the axial direction of the telescopic rotating cylinder 2 and the position of the guide pin 31 is relatively fixed, the telescopic rotating cylinder 2 can move axially as it rotates, with the guide pin 31 pushing the inclined guide groove 22. In other words, the telescopic rotating cylinder 2 can perform axial telescopic motion simultaneously with rotational motion. By applying the rotational telescopic mechanism of this invention to a massage device, the rotating cylinder 1 can provide a continuous rotational massage effect, and the telescopic rotating cylinder 2 can provide a massage effect through reciprocating telescopic movement and synchronous rotation. This allows users to experience a variety of massage techniques, while simultaneously expanding the range of applications for the rotating and retractable mechanism.

[0011] As shown in Figures 5 to 7, in some embodiments of the present invention, the drive mechanism 6 includes a gear mechanism housing 61, a motor 62, and a gear train 63. The gear mechanism housing 61 is provided on the outside of the support cylinder 3, and the output shaft of the motor 62 is fixed inside the gear mechanism housing 61 and powered by a battery 75. The output shaft of the motor 62 is driven and connected to the gear train 63, the first transmission gear 638 of the gear train 63 meshes with the first ring gear 4, and the second transmission gear 639 of the gear train 63 meshes with the second ring gear 5. To further explain, by transmitting the rotation of the motor 62 to the first ring gear 4 and the second ring gear 5 via the gear train 63, an additional power source is not required, and production costs can be reduced. As shown in Figure 7, in some embodiments of the present invention, the gear train 63 includes a worm wheel 630, a worm 631, and a rotating shaft 632. The worm 631 is connected to the output shaft of the motor 62, and the rotating shaft 632 is rotatably mounted within the housing. The worm wheel 630 is fitted onto the rotating shaft 632 and meshes with the worm 631. A first bevel gear 633 is fitted onto the rotating shaft 632, and a coaxially arranged second bevel gear 634 and a third bevel gear 635 mesh with the first bevel gear 633. A first transmission shaft 636 is connected to the second bevel gear 634, and the first transmission shaft 636 passes through the gear mechanism housing 61 and is connected to a first transmission gear 638. The third bevel gear 635 is connected to a second transmission shaft 637, which passes through the gear mechanism housing 61 and is connected to a second transmission gear 639. To further explain, by providing the first transmission shaft 636 and the second transmission shaft 637, the torque of the worm wheel 630 and the first bevel gear 633 can be flexibly transmitted to the second bevel gear 634 and the third bevel gear 635. This improves the degree of freedom in the arrangement of the gear mechanism housing 61, the first ring gear 4 and the second ring gear 5, resulting in a smaller structural dimension and a configuration suitable for storage and portability.

[0012] As shown in FIG. 2, in some embodiments of the present invention, the inclined guide groove 22 includes two annular ribs 23 provided in parallel and spaced apart from each other. The two annular ribs 23 are wound along the outer circumference of the telescopic rotary cylinder 2 while being inclined in the axial direction. The guide pin 31 is inserted between the two annular ribs 23. On both sides of the two annular ribs 23, two corresponding annular ribs 24 are provided, and the annular ribs 24 are in contact with the inner wall of the support cylinder 3. The mounting position of the annular rib 24 is set to separate the guide groove 21 and the annular rib 23 from each other. More specifically, the inclined guide groove 22 is formed by the two annular ribs 23 and the outer peripheral surface of the telescopic rotary cylinder 2. The annular ribs 23 are symmetrically arranged in a cross-section including the central axis of the telescopic rotary cylinder 2 and are formed smoothly and continuously. Therefore, when the guide pin 31 slides relative to the inclined guide groove 22, the telescopic rotary cylinder 2 can be moved stably and at a constant speed along the axial direction, and the two annular ribs 24 play a role in stably supporting the telescopic rotary cylinder 2. As shown in FIGS. 3, 4, and 8, the multifunctional massage device according to the present invention includes an outer shell 7, an upper cover 8, a rear cover 9, and a rotary telescopic mechanism according to any one of claims 1 to 4. The rotary telescopic mechanism is provided inside the outer shell 7, and the upper cover 8 is provided on the outer shell 7 at a position corresponding to the end of the rotary cylinder 1 so as to be rotatable and openable and closable. A vibration massage unit 10 is provided inside the upper cover 8. The upper cover 8 can be held at a plurality of opening angles, and the vibration massage unit 10 can perform massage at different angles. The rear cover 9 is provided on the outer shell 7 at a position corresponding to the end of the telescopic rotary cylinder 2 so as to be openable and closable. A first inner cylinder 11 is fixed inside the rotary cylinder 1, and a second inner cylinder 12 is fixed inside the telescopic rotary cylinder 2. To explain further, the first inner cylinder 11 rotates in sync with the rotating cylinder 1, and the second inner cylinder 12 extends and retracts and rotates in sync with the telescopic rotating cylinder 2, so that the vibration massage unit 10 provides vibration massage to the tip of the area to be massaged. Since the upper cover 8 can be held in position at different opening angles, the vibration massage unit 10 provided on the upper cover 8 rotates according to different angles as the upper cover 8 opens, thereby providing different massage effects to the area to be massaged.

[0013] As shown in Figure 4, in some embodiments of the present invention, the vibration massage unit 10 includes a silicone end cap 101, a vibration motor 102, and a motor housing 103. A fixing base 71 is provided on the outer shell 7, and the upper cover 8 and the silicone end cap 101 are fixed via the fixing base 71. The silicone end cap 101 has a plurality of massage protrusions on the rear end side close to the rotating cylinder 1, and a storage space is formed on the front end side away from the rotating cylinder 1. The motor housing 103 is provided in the storage space, and the vibration motor 102 is provided inside the motor housing 103 and powered by a battery 75. To explain further, the vibration motor 102 vibrates multiple massage protrusions, thereby providing a continuous vibratory massage to the area being massaged. As shown in Figures 4 and 5, in some embodiments of the present invention, the fixed base 71 includes a first fixed member 711 and a second fixed member 712. The first fixed member 711 is fixed to the outer shell 7, and magnets 713 are embedded inside the first fixed member 711 and the second fixed member 712, respectively, and the two are attracted to each other by magnetic force. The silicone end cap 101 and the upper cover 8 are attached to the second fixed member 712. More specifically, the first fixing member 711 and the second fixing member 712 function as a mounting base for the silicone end cap 101 and the upper cover 8. The second fixing member 712 is attracted by the first fixing member 711 and the magnet 713. When the external force acting on the second fixing member 712 exceeds the magnetic force, the second fixing member 712 rotates and opens together with the upper cover 8, thereby enabling the angle adjustment of the vibration massage unit 10. Specifically, a rotation pin structure is formed on the first fixing member 711, and a rotation pin hole structure that is rotatably fitted with the rotation pin structure is formed on the second fixing member 712. A damper is provided at the connection portion between the two, so that the second fixing member 712 can be stably held at a plurality of open angle positions with respect to the first fixing member 711 together with the upper cover 8. In the state where the first fixing member 711 and the second fixing member 712 are magnetically attracted, that is, when the upper cover 8 is completely closed, the silicone end cap 101 is disposed at the outer end face position on the central axis of the first inner cylinder 11, and the tip of the massage target portion protruding from the first inner cylinder 11 abuts against the silicone end cap 101 facing it to perform massage. On the other hand, when the second fixing member 712 and the upper cover 8 rotate by a predetermined angle, the silicone end cap 101 forms a predetermined inclination angle with respect to the longitudinal section of the first inner cylinder 11, and the side surface of the massage target portion protruding from the first inner cylinder 11 abuts against the silicone end cap 101 to perform massage, thereby realizing different massage experiences.

[0014] As shown in FIG. 2, in some embodiments of the present invention, a first fixing ring 72 and a second fixing ring 73 are fixed inside the outer shell 7. The first ring gear 4 is provided between the first fixing ring 72 and the support cylinder 3, and the second ring gear 5 is provided between the second fixing ring 73 and the support cylinder 3. More specifically, the first fixing ring 72 is used to position and regulate the first ring gear 4 and the rotating cylinder 1, and the second fixing ring 73 is used to position and regulate the second ring gear 5 and the end of the telescopic rotating cylinder 2. As shown in Figures 4 and 6, in some embodiments of the present invention, a first mounting hole is formed in the outer shell 7, and a push-button switch 74 is provided in the first mounting hole. A first control board is connected to the inside of the push-button switch 74, a power supply housing 76 is fixed inside the outer shell 7, and a battery 75 is provided inside the power supply housing 76. The first control board is provided on the side of the power supply housing 76 and is electrically connected to the battery 75. To further explain, the first control board can be connected not only to the built-in battery 75, but also to an external power source. When the battery 75 is built-in, a charging port for charging the battery 75 is provided on the outer casing 7. As shown in Figure 6, in some embodiments of the present invention, a second mounting hole is formed in the outer shell 7, and a cover fixing member 77 is provided inside the second mounting hole. A waterproof sealing member is provided between the cover fixing member 77 and the second mounting hole. A viewing cover plate is attached to the cover fixing member 77, and a second control board is provided on the inside of the viewing cover plate. A light-shielding member 78 is provided between the viewing cover plate and the second control board, and a mounting seat 79 is formed on the cover fixing member 77, and the end of the guide pin 31 opposite to the inclined guide groove 22 is connected to the mounting seat 79. To explain further, a waterproof sealing component is provided to prevent water from entering the inside of the massage device. Furthermore, rubber plugs are provided in the motor housing 103, power supply housing 76, and gear mechanism housing 61, ensuring overall waterproofness.

[0015] To operate the massage device of this invention, the push-button switch 74 is pressed to start the electric motor 62. The output shaft of the electric motor 62 rotates the worm 631, which in turn rotates the worm wheel 630 that meshes with the worm 631. As a result, the rotating shaft 632 and the first bevel gear 633 attached to the rotating shaft 632 rotate, and the second bevel gear 634 and the third bevel gear 635 that mesh with the first bevel gear 633 rotate the first transmission shaft 636 and the second transmission shaft 637, respectively, which in turn rotate the first transmission gear 638 and the second transmission gear 639. As a result, the first ring gear 4 and the second ring gear 5 are simultaneously driven to rotate. Since the first ring gear 4 is fixed to the rotating cylinder 1, the rotating cylinder 1 rotates, and a rotational massage effect is obtained by the first inner cylinder 11 provided inside it. On the other hand, since the second ring gear 5 is slidably engaged with the guide groove 21 of the telescopic rotating cylinder 2 via the positioning projection 51, relative sliding occurs between the guide pin 31 and the inclined guide groove 22 when the second ring gear 5 rotates. Furthermore, since the inclined guide groove 22 is provided at an angle along the axial direction of the telescopic rotating cylinder 2 and the position of the guide pin 31 is relatively fixed, the telescopic rotating cylinder 2 can move in the axial direction as it rotates, pushed by the guide pin 31 in the inclined guide groove 22. In other words, the telescopic rotating cylinder 2 can perform axial extension and retraction movements simultaneously with rotation. This allows the second inner cylinder 12 inside the telescopic rotating cylinder 2 to be provided with a massage effect through reciprocating extension and retraction and synchronous rotation. In addition, by operating the vibration motor 102, the multiple projections formed on the silicone end cap 101 vibrate, thereby providing a massage effect through vibration stimulation to the area to be massaged. The massage device according to this invention can provide different massage functions depending on the area to be massaged, realize a variety of massage effects with multiple stimulation patterns, and improve the user's massage experience.

[0016] The foregoing are merely preferred embodiments of the present invention and do not limit the scope of the patent protection of the present invention. Modifications to equivalent structures, or direct or indirect applications to other related technical fields, based on the fundamental concept of the present invention and using the contents of this specification and accompanying drawings, are also included within the scope of patent protection of the present invention. [Explanation of Symbols]

[0017] 1. Rotating cylinder 2. Telescopic rotating cylinder 21 Guide groove 22 Inclined guide groove 23 Annular Ribs 24 Circular Ribs 3 Support tube 31 Guide pins 4. First ring gear 5. Second ring gear 51 Positioning protrusion 6. Drive mechanism 61 Gear mechanism housing 62 motors 63 Gear train 630 Worm Wheel 631 Warm 632 Rotation axis 633 First bevel gear 634 Second bevel gear 635 Third bevel gear 636 First transmission shaft 637 Second transmission shaft 638 First transmission gear 639 Second transmission gear 7 Outer shell 71 Fixed base 711 First fixing member 712 Second fixing member 713 Magnet 72 1st fixed ring 73 Second fixed ring 74 Push-button switches 75 Batteries 76 Power Supply Enclosures 77 Cover fixing member 78 Light-shielding material 79 Mounting base 8. Top cover 9 Rear cover 10 Vibration Massage Units 101 Silicone End Caps 102 Vibration motor 103 Motor housing 11. First Inner Cylinder 12. Second inner cylinder

Claims

1. A rotating and retracting mechanism, It comprises a rotating cylinder (1), a telescopic rotating cylinder (2), and a support cylinder (3). The rotating cylinder (1) and the telescopic rotating cylinder (2) are arranged at intervals along the same axis inside the support cylinder (3). A first ring gear (4) is fixed to the rotating cylinder (1), A second ring gear (5) is mounted on the aforementioned retractable rotating cylinder so as to be slidable in the axial direction. A drive mechanism (6) is positioned on the outside of the support cylinder. The gears provided in the drive mechanism (6) mesh with the first ring gear (4) and the second ring gear (5), respectively. Guide grooves (21) extending in the axial direction are formed on the outer circumferential surface of the aforementioned retractable rotating cylinder (2). The inner circumferential surface of the second ring gear (5) is provided with a positioning projection (51) that slides and engages with the guide groove (21), An inclined guide groove (22) extending along the circumferential direction is formed on the outer circumferential surface of the aforementioned retractable rotating cylinder (2). The inclined guide groove (22) is provided at an angle along the axial direction of the telescopic rotating cylinder (2), Guide pins (31) are positioned to pass through the side wall of the support cylinder (3). The inner end of the guide pin (31) is inserted into the inclined guide groove (22). A rotating telescopic mechanism characterized by the following features.

2. The drive mechanism (6) includes a gear mechanism housing (61), a motor (62), and a gear train (63). The gear mechanism housing (61) is provided on the outside of the support cylinder (3), The output shaft of the motor (62) is fixed inside the gear mechanism housing (61) and powered by a battery (75). The output shaft of the motor (62) is driven and connected to the gear train (63), The first transmission gear (638) of the gear train (63) meshes with the first ring gear (4), The second transmission gear (639) of the gear train (63) is meshed with the second ring gear (5). The rotational telescopic mechanism according to claim 1, characterized by the above.

3. The gear train (63) includes a worm wheel (630), a worm (631), and a rotating shaft (632). The worm (631) is connected to the output shaft of the motor (62). The rotating shaft (632) is rotatably mounted inside the gear mechanism housing (61). The worm wheel (630) is fitted onto the rotating shaft (632) and meshes with the worm (631). A first bevel gear (633) is fitted onto the aforementioned rotating shaft (632). The first bevel gear (633) is meshed with a second bevel gear (634) and a third bevel gear (635) which are arranged coaxially. The first transmission shaft (636) is connected to the second bevel gear (634). The first transmission shaft (636) passes through the gear mechanism housing (61) and is connected to the first transmission gear (638). The third bevel gear (635) is connected to the second transmission shaft (637). The second transmission shaft (637) passes through the gear mechanism housing (61) and is connected to the second transmission gear (639). The rotational telescopic mechanism according to claim 2, characterized by the above.

4. The inclined guide groove (22) includes two annular ribs (23) that are parallel to each other and spaced apart. The two annular ribs (23) are wound around the outer circumference of the expandable rotating cylinder (2) while being inclined in the axial direction. The guide pin (31) is inserted between the two annular ribs (23), Two corresponding annular ribs (24) are provided on each side of the two annular ribs (23). The annular rib (24) is in contact with the inner wall of the support cylinder (3), The mounting position of the annular rib (24) is set so as to separate the guide groove (21) and the annular rib (23) from each other. The rotational telescopic mechanism according to claim 1, characterized by the above.

5. A multi-functional massage device, It includes an outer shell (7), an upper cover (8), a rear cover (9), and a rotational extension mechanism according to any one of claims 1 to 4. The aforementioned rotational extension mechanism is provided within the outer shell (7), The upper cover (8) is rotatably opened and closed on the outer shell (7) at a position corresponding to the end of the rotating cylinder (1), A vibration massage unit (10) is provided inside the upper cover (8). The upper cover (8) can be held in position at multiple open angles, and the vibration massage unit (10) can perform massage at different angles. The rear cover (9) is provided on the outer shell (7) at a position corresponding to the end of the telescopic rotating cylinder (2) so as to be able to open and close. A first inner cylinder (11) is fixed inside the rotating cylinder (1). A second inner cylinder (12) is fixed inside the aforementioned telescopic rotating cylinder (2). A multi-functional massage device featuring the following characteristics.

6. The vibration massage unit (10) includes a silicone end cap (101), a vibration motor (102), and a motor housing (103). A fixed base (71) is provided on the outer shell (7). The upper cover (8) and the silicone end cap (101) are fixed via the fixing base (71). The silicone end cap (101) has a plurality of massage protrusions on the rear end side near the rotating cylinder (1), A storage space is formed at the front end, away from the rotating cylinder (1). The motor housing (103) is provided within the storage space. The vibration motor (102) is housed in the motor housing (103) and is powered by a battery (75). A multifunctional massage device according to claim 5, characterized by the above.

7. The fixed base (71) includes a first fixed member (711) and a second fixed member (712), The first fixing member (711) is fixed to the outer shell (7), A magnet (713) is embedded inside the first fixing member (711) and the second fixing member (712), and the two are attracted to each other by magnetic force. The silicone end cap (101) and the upper cover (8) are attached to the second fixing member (712). A multifunctional massage device according to claim 6, characterized by the above.

8. A first fixed ring (72) and a second fixed ring (73) are fixed inside the outer shell (7). The first ring gear (4) is provided between the first fixed ring (72) and the support cylinder (3). The second ring gear (5) is provided between the second fixed ring (73) and the support cylinder (3). A multifunctional massage device according to claim 5, characterized by the above.

9. The outer shell (7) has a first mounting hole formed therein. A push-button switch (74) is provided in the first mounting hole. A first control board is connected inside the push-button switch (74). A power supply housing (76) is fixed inside the outer shell (7). A battery (75) is provided inside the power supply housing (76). The multifunctional massage device according to claim 5, characterized in that the first control board is provided on the side of the power supply housing (76) and is electrically connected to the battery (75).

10. The outer shell (7) has a second mounting hole formed therein. A cover fixing member (77) is provided inside the second mounting hole. A waterproof sealing member is provided between the cover fixing member (77) and the second mounting hole. A viewing cover plate is attached to the cover fixing member (77). A second control board is provided inside the aforementioned viewing cover plate. A light-shielding member (78) is provided between the visibility cover plate and the second control board. A mounting base (79) is formed on the cover fixing member (77). The end of the guide pin (31) opposite to the inclined guide groove (22) is connected to the mounting seat (79). A multifunctional massage device according to claim 5, characterized by the above.

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