A rotating extension mechanism and a multifunctional massage device

Abstract

A rotary extraction mechanism, characterized in that it comprises a rotary drum (1), an extraction rotary drum (2) and an arrangement drum (3), the rotary drum (1) and the extraction rotary drum (2) being arranged coaxially spaced within the arrangement drum (3), a first toothed ring (4) being rigidly connected to the rotary drum (1), a second toothed ring (5) being slidably connected to the extraction rotary drum (2), a drive mechanism (6) being provided on an outer side of the arrangement drum (3), the gear of which engages with the first toothed ring (4) and the second toothed ring (5), a limiting groove (21) being provided on an outer wall of the extraction rotary drum (2) in the axial direction, a limiting projection (51) being provided on an inner wall of the second toothed ring (5) which slidably fits the limiting groove (21), and a guide slot (22) being provided on the outer wall of the extraction rotary drum (2) in the circumferential direction.which is provided at an angle in the axial direction, a guide element (31) is provided continuously on a side wall of the arrangement drum (3), the inner end of which projects into the guide slot (22).

Description

Technical field

[0001] The present invention relates to a technical field of an extension mechanism, in particular a rotary extension mechanism and a multifunctional massage device. State of the art

[0002] An extension device is a common device in the field of mechanics. Furthermore, extension devices have various extension forms and different application scenarios. For example, a rotary extension mechanism can be used for a rotary massager, but the drums in existing massagers are usually individual drums that are moved in a single direction, have a simple massage function, and offer a relatively general massage experience. Furthermore, while rotary extension mechanisms exist in other areas, their structure is usually relatively complex, making rapid back-and-forth extension difficult, and the application scenarios are relatively limited.

[0003] The invention, with publication number CN117100567B, discloses a multifunctional massage device in which an area to be massaged is placed in an inner chamber of a flexible massage drum. Under the elastic action of the flexible massage drum, flexible projections on an inner wall of the flexible massage drum rest against and contact an outer wall of the area to be massaged. At this point, an extension element and the flexible massage drum are driven by a drive device to extend in order to perform a friction massage on the area to be massaged, or a suction pump and an electric control valve are started to deflate the flexible massage drum, so that the flexible massage drum tightly binds the area to be massaged. After a certain period, it relaxes; the closing of an electromagnetic valve is used for this relaxation.so that the outside air enters the flexible massage drum, the tight binding is achieved by switching the electric control valve, which allows for a variety of massage methods, but does not allow the movement method of combining rotation with extension, which affects the user experience and makes it difficult to meet the application needs in different scenarios. Disclosure of the invention

[0004] The present invention aims to solve the shortcomings of the existing technology, provides a rotary extension mechanism and a multifunctional massage device, enables the combination of the rotary movement with the extension movement, and can meet the application needs in various scenarios.

[0005] To achieve the aforementioned goal, the present invention provides a rotary extension mechanism comprising a rotating drum, an extension drum, and an arrangement drum. The rotating drum and the extension drum are arranged coaxially spaced within the arrangement drum. A first toothed ring is fixedly connected to the rotating drum, and a second toothed ring is slidably connected to the extension drum. A drive mechanism is provided on an outer surface of the arrangement drum, the gear of which engages with the first and second toothed rings. An axially extending limiting groove is provided on an outer wall of the extension drum. A limiting projection, which slidably fits the limiting groove, is provided on an inner wall of the second toothed ring. A circumferential guide slot is provided on the outer wall of the extension drum.The guide slot is provided at an axial angle; a guide element is provided continuously on one side wall of the arrangement drum, the inner end of which projects into the guide slot.

[0006] In the present invention, the gear of the drive mechanism can drive the first toothed ring and the second toothed ring, which engage with it, into rotation. Because the first toothed ring is connected to the rotating drum, the rotational movement of the rotating drum can occur within the assembly drum. Because the second toothed ring is slidably connected to the limiting groove of the extraction rotating drum by means of the limiting projection, relative sliding occurs between the guide element and the guide slot when the second toothed ring is rotated. Since a helix of the guide slot occurs in the axial direction and the position of the guide element is relatively fixed, the guide element can actuate the guide slot for axial movement when the extraction rotating drum is rotated; that is, the axial extraction movement of the extraction rotating drum can also be carried out.The rotary extension mechanism of the present invention can be used in the field of massage devices; the rotating drum provides a continuous rotary massage effect; the extension rotating drum provides the massage effect of back-and-forth extension and synchronous rotation, so that the person being massaged experiences many different massage effects, thereby expanding the application scenarios of the rotary extension mechanism.

[0007] Alternatively, the drive mechanism comprises a gearbox housing, an electric motor and a drive gear assembly; the gearbox housing is provided on the outside of the arrangement drum; the electric motor is fixed inside the gearbox housing and is powered by a battery; a rotating shaft of the electric motor is in drive connection with the drive gear assembly; a first drive wheel of the drive gear assembly engages with the first tooth ring; a second drive wheel of the drive gear assembly engages with the second tooth ring.

[0008] In the present invention, the rotation of the electric motor is transmitted to the first and second toothed rings by the drive gear assembly; this does not require an additional source of drive power and reduces production costs.

[0009] Alternatively, the drive gear assembly comprises a turbine wheel, a worm gear, and a wheel shaft. The worm gear is connected to the rotating shaft of the electric motor. The wheel shaft is arranged to rotate within the gearbox. The turbine wheel is mounted on the wheel shaft and engages with the worm gear. A first bevel gear is mounted on the wheel shaft, which engages with a second bevel gear and a third bevel gear, which are arranged coaxially. A first drive shaft, which passes through the gearbox housing and is connected to a first drive wheel, is connected to the second bevel gear. A second drive shaft, which passes through the gearbox housing and is connected to a second drive wheel, is connected to the third bevel gear.

[0010] In the present invention, by providing the first drive shaft and the second drive shaft, the torque of the turbine wheel and the first bevel gear can be flexibly transmitted to the second bevel gear and the third bevel gear, so that the gearbox housing, the first tooth ring and the second tooth ring have a more flexible layout of position and miniaturization of the structural sizes is enabled.

[0011] Alternatively, the guide slot includes two annular stiffening ribs spaced parallel to each other. The two annular stiffening ribs are arranged obliquely in the axial direction around an outer wall of the extraction drum. The guide element is located between the two annular stiffening ribs. On both sides of the two annular stiffening ribs, two circular stiffening ribs are provided in a one-to-one ratio. The two circular stiffening ribs are in contact with an inner wall of the arrangement drum. The circular stiffening ribs are spaced apart from the limiting groove and the annular stiffening ribs.

[0012] In the present invention, the two annular stiffening ribs and the outer wall of the extraction drum form the guide slot. The annular stiffening ribs are provided symmetrically along any axial cross-section of the extraction drum, and a smooth transition of the annular stiffening ribs occurs on the extraction drum, so that when the guide part slides relative to the guide slot, the extraction drum can be pushed in the axial direction for stable movement at a constant speed. The two annular stiffening ribs fulfill the stable support function for the extraction drum.

[0013] The present invention further provides a multifunctional massage device comprising a top cover, a back cover, and a rotary extension mechanism. The rotary extension mechanism is provided within the outer housing. The top cover is rotatably opened and closed at an end part on the outer housing corresponding to the rotating drum. A vibration massage component is provided within the top cover. The top cover can be suspended at several opening angles, so that the vibration massage component provides massage at multiple angles. The back cover is openable and closeable at an end part on the outer housing corresponding to the extension rotary drum. A first inner insert is fixedly provided within the rotating drum, and a second inner insert is fixedly provided within the extension rotary drum.

[0014] In the present invention, the first inner insert is rotated synchronously with the rotating drum, the second inner insert is extendable and rotated synchronously with the extension rotating drum, the vibration massage component provides the vibration massage for the head end of the massage area, thus providing different massage effects for different massage areas and enhancing the massage experience. Since the head cover can be opened at different angles, the vibration massage component provided on the head cover is deflected at different angles with the opening of the head cover, thus providing different massage effects for different massage areas.

[0015] Alternatively, the vibration massage component comprises a silicone end cap, a vibration motor, and a motor housing. A mounting seat is provided on the outer housing through which the head cap and the silicone end cap are attached. Several massage protrusions are provided at a rear end of the silicone end cap close to the rotating drum. A casing chamber is formed at a front end of the silicone end cap farther from the rotating drum, within which the vibration motor is arranged. The vibration motor is provided inside the motor housing and is powered by a battery.

[0016] In the present invention, several massage protrusions are driven by the vibration motor to generate vibration movements, so that a continuous vibration massage is provided for the massage areas.

[0017] Alternatively, the mounting seat comprises a first mounting part and a second mounting part, the first mounting part is firmly connected to the outer housing, magnets are embedded in the first mounting part and the second mounting part accordingly, the first mounting part and the second mounting part are connected by magnetic attraction in a rotating manner, the silicone end cap and the head cap are provided on the second mounting part.

[0018] In the present invention, the first fastening part and the second fastening part serve to provide a base for the silicone end cap and the head cap. Because the second fastening part and the first fastening part are attracted by the magnet, the second fastening part can be opened by rotating together with the head cap when the force exerted on the second fastening part exceeds the magnetic force, in order to facilitate the control of the different angles of the vibration massage component.

[0019] Alternatively, a first retaining ring and a second retaining ring are permanently provided inside the outer housing; the first toothed ring is provided between the first retaining ring and the arrangement drum, and the second toothed ring is provided between the second retaining ring and the arrangement drum.

[0020] In the present invention, the first retaining ring serves to limit the first toothed ring and the rotating drum, the second retaining ring serves to limit the second toothed ring and the end part of the extraction rotating drum.

[0021] Alternatively, a first arrangement opening is provided on the outer housing, within which a push-button switch is arranged, the inside of which is connected to a first control panel, a power source housing is provided inside the outer housing, a battery is arranged inside the power source housing, the first control panel is provided on one side of the power source housing and is electrically connected to the battery.

[0022] Alternatively, a second mounting opening is provided on the outer housing, within which a cover plate mounting part is provided, a watertight sealing ring is provided between the cover plate mounting part and the second mounting opening, a visual cover plate is arranged on the cover plate mounting part, a second control panel is arranged on the inside of which a light shield is provided between the visual cover plate and the second control panel, a mounting seat is provided on the cover plate mounting part, an end part of the guide part facing away from the guide slot is connected to the mounting seat.

[0023] In the present invention, the internal part of the massage device can be protected from water by providing a waterproof sealing ring. Furthermore, rubber plugs are provided on the motor housing, power source housing, and gearbox housing to ensure waterproofing. Beneficial effects:

[0024] In the present invention, the gear of the drive mechanism can drive the first toothed ring and the second toothed ring, which engage with it, into rotation. Because the first toothed ring is connected to the rotating drum, the rotational movement of the rotating drum can occur within the assembly drum. Because the second toothed ring is slidably connected to the limiting groove of the extraction rotating drum by means of the limiting projection, relative sliding occurs between the guide element and the guide slot when the second toothed ring is rotated. Since a helix of the guide slot occurs in the axial direction and the position of the guide element is relatively fixed, the guide element can actuate the guide slot for axial movement when the extraction rotating drum is rotated; that is, the axial extraction movement of the extraction rotating drum can also be carried out.

[0025] The rotary extension mechanism of the present invention can be used in the field of massage devices; the rotating drum provides a continuous rotary massage effect; the extension rotating drum provides the massage effect of back-and-forth extension and synchronous rotation, so that the person being massaged experiences many different massage effects, thereby expanding the application scenarios of the rotary extension mechanism. Explanation of the illustrations

[0026] To illustrate the technical solution in the embodiments of the present invention or in the existing technology more clearly, the figures to be used in the embodiments or the description of the existing technology are simplified below. Obviously, the figures in the following description represent only some embodiments of the present invention. Furthermore, other representations may be readily apparent to a person skilled in the art based on the structure shown in these figures, without any inventive effort. Fig. is a structural diagram of a rotary extension mechanism; Fig. is a structural diagram of a rotary extension mechanism in which one arrangement drum has been removed; Fig. This is a structural diagram of a multifunctional massage device; Fig. is a cutaway view of a multifunctional massage device; Fig. is a diagram of a first internal structure of a multifunctional massage device; Fig. is a diagram of the first internal structure of a multifunctional massage device from a different viewing angle; Fig. is a diagram of a second internal structure of a multifunctional massage device; Fig. is a structural diagram of a multifunctional massage device when opening a head cover at a specific angle. Reference symbol:

[0027] (1) Rotating drum; (2) Extraction rotating drum; (21) Limiting groove; (22) Guide slot; (23) Annular stiffening rib; (24) Circular annular stiffening rib; (3) Arrangement drum; (31) Guide part; (4) First tooth ring; (5) Second tooth ring; (51) Limiting projection; (6) Drive mechanism; (61) Gear housing; (61) Electric motor; (63) Drive gear assembly; (630) Turbine wheel; (631) Worm; (632) Wheel shaft; (633) First bevel gear; (634) Second bevel gear; (635) Third bevel gear; (636) First drive shaft; (637) Second drive shaft; (638) First drive wheel; (639) Second drive wheel; (7) Outer housing; (71) Mounting seat; (711) First mounting part; (712) Second mounting part; (713) Magnet; (72) First mounting ring; (73) Second mounting ring; (74) Pushbutton switch; (75) Battery; (76) Power source housing; (77) Cover plate mounting part; (78) Light shield; (79) Mounting seat; (8) Top cover; (9) Rear cover; (10) Vibration massage component;(101) Silicone end cap; (102) Vibration motor; (103) Motor housing; (11) First inner insert; (12) Second inner insert.;

[0028] The achievement of the objective, the functional properties and the advantages of the present invention are further explained in combination with the embodiments, with reference to the figures. Designs

[0029] The technical solution in the embodiments of the present invention is clearly and completely described below in combination with the illustrations of those embodiments. Obviously, the described embodiments represent only a portion of the embodiments of the present invention, not all embodiments. All other embodiments that could be obtained by a person skilled in the art in the relevant field without inventive effort, based on the embodiments of the present invention, fall within the scope of protection afforded by the present invention.

[0030] In the description of the present invention, terms such as provision, arrangement, connection should be understood in a general sense, unless explicitly limited otherwise; the person skilled in the art in the relevant field can reasonably determine the specific meaning of the above-mentioned words in the present invention in combination with the specific content of the technical solution.

[0031] In the description of the present invention, the terms “an embodiment”, “some embodiments”, “schematic embodiment”, “schematic example”, “specific schematic example”, or “some schematic examples”, and the like, refer to the fact that the specific features, structures, materials, or characteristics shown in combination with the embodiment or schematic example are included in at least one embodiment or schematic example of the present invention. In this description, the schematic formulation of the above terms does not necessarily refer to the same embodiment or schematic example. Furthermore, the specific features, structures, materials, or characteristics shown may be combined appropriately in one or more embodiments or schematic examples.

[0032] Referring to Fig. and Fig. It is evident that a rotary extraction mechanism according to the invention comprises a rotary drum (1), an extraction rotary drum (2), and an arrangement drum (3), the rotary drum (1) and the extraction rotary drum (2) being provided coaxially spaced within the arrangement drum (3), a first toothed ring (4) being rigidly connected to the rotary drum (1), a second toothed ring (5) being slidably connected to the extraction rotary drum (2), a drive mechanism (6) being provided on an outer surface of the arrangement drum (3), the gear of which engages with the first toothed ring (4) and the second toothed ring (5), a limiting groove (21) being provided on an outer wall of the extraction rotary drum (2) in the axial direction, a limiting projection (51) being provided on an inner wall of the second toothed ring (5) which slidably fits the limiting groove (21), and a guide slot (22) being provided on the outer wall of the extraction rotary drum (2) in the circumferential direction.which is provided at an angle in the axial direction, a guide element (31) is provided continuously on a side wall of the arrangement drum (3), the inner end of which projects into the guide slot (22).

[0033] In the present invention, the gear of the drive mechanism (6) can drive the first toothed ring (4) and the second toothed ring (5), which engage with it, to rotation. Because the first toothed ring (4) is connected to the rotating drum (1), the rotating movement of the rotating drum (1) can occur within the arrangement drum (3). Because the second toothed ring (5) is slidably connected to the limiting groove (21) of the extraction rotating drum (2) by means of the limiting projection (51), relative sliding occurs between the guide part (31) and the guide slot (22) when the second toothed ring (5) is rotated. Since the chamfer of the guide slot (22) occurs in the axial direction and the position of the guide part (31) is relatively fixed, the guide part (31) can actuate the guide slot (22) for axial movement when the extraction rotating drum (2) is rotated; that is, the axial extraction movement of the extraction rotating drum (2) can also be carried out.The rotary extension mechanism of the present invention can be used in the field of massage devices; a continuous rotary massage effect is provided by the rotating drum (1); the massage effect of back-and-forth extension and synchronous rotation is provided by the extension rotating drum (2), so that the person being massaged experiences many different massage effects, thereby expanding the application scenarios of the rotary extension mechanism.

[0034] Referring to Fig. until Fig. It is evident that in some embodiments of the present invention the drive mechanism (6) comprises a gearbox housing (61), an electric motor (62) and a drive gear assembly (63), the gearbox housing (61) is provided on the outside of the arrangement drum (3), the electric motor (62) is fixedly provided inside the gearbox housing (61) and is supplied with power by a battery (75), a rotating shaft of the electric motor (62) is in drive connection with the drive gear assembly (63), a first drive wheel (638) of the drive gear assembly (63) engages with the first tooth ring (4), a second drive wheel (639) of the drive gear assembly (63) engages with the second tooth ring (5).

[0035] In the present invention, the rotation of the electric motor (62) is transmitted to the first toothed ring (4) and the second toothed ring (5) by means of the drive gear assembly (63), this does not require an additional drive power source and reduces production costs.

[0036] Referring to Fig. It is evident that in some embodiments of the present invention, the drive gear assembly (63) comprises a turbine wheel (630), a worm gear (631), and a wheel shaft (632), the worm gear (631) is connected to the rotating shaft of the electric motor (62), the wheel shaft (632) is arranged to rotate within the gearbox, the turbine wheel (630) is mounted on the wheel shaft (632) and engages with the worm gear (631), a first bevel gear (633) is mounted on the wheel shaft (632), with which a second bevel gear (634) and a third bevel gear (635), which are provided coaxially, a first drive shaft (636) is connected to the second bevel gear (634), which passes through the gearbox housing (61) and is connected to a first drive wheel (638), and a second drive shaft (637) is connected to the third bevel gear (635). is which passes through the gearbox housing (61) and is connected to a second drive wheel (638).

[0037] In the present invention, by providing the first drive shaft (636) and the second drive shaft (637), the torque of the turbine wheel (630) and the first bevel gear (633) can be flexibly transmitted to the second bevel gear (634) and the third bevel gear (635), so that the gearbox housing (61), the first tooth ring (4) and the second tooth ring (5) have a more flexible layout of position, miniaturization of the structural sizes is enabled to facilitate intake and carrying.

[0038] Referring to Fig. It is evident that in some embodiments of the present invention, the guide slot (22) comprises two annular stiffening ribs (23) which are provided parallel and spaced apart, the two annular stiffening ribs (23) are provided obliquely in the axial direction around an outer wall of the extraction rotary drum (2), the guide part (31) is provided between the two annular stiffening ribs (23), two circular annular stiffening ribs (24) are provided one to one on both sides of the two annular stiffening ribs (23), the two circular annular stiffening ribs (24) are in contact fit with an inner wall of the arrangement drum (3), and the circular annular stiffening ribs (24) are provided spaced apart from the limiting groove (21) and the annular stiffening ribs (23).

[0039] In the present invention, the two annular stiffening ribs (23) and the outer wall of the extraction drum (2) form the guide slot (22). The annular stiffening ribs (23) are provided symmetrically along any axial cross-section of the extraction drum (2), and a smooth transition of the annular stiffening ribs (23) takes place on the extraction drum (2), so that when the guide part (31) slides relative to the guide slot (22), the extraction drum (2) is pushed to a stable movement at a constant speed in the axial direction. The two circular annular stiffening ribs (24) fulfill the stable support function for the extraction drum.

[0040] Referring to Fig. , Fig. and Fig. It is evident that a multifunctional massage device according to the invention comprises a top cover (8), a back cover (9) and a rotary extension mechanism according to one of claims 1 to 4, the rotary extension mechanism being provided within the outer housing (7), the top cover (8) being rotatably opened at an end part on the outer housing (7) corresponding to the rotating drum (1).is provided closed, a vibration massage component (10) is provided within the top cover (8), the top cover (8) can be suspended at points of several opening angles, so that the vibration massage component (10) provides the massage of several angles, the rear cover (9) is provided to be openable, closeable at an end part on the outer housing (7) corresponding with the extraction rotary drum (2), a first inner insert (11) is fixedly provided within the rotary drum (1), a second inner insert (12) is fixedly provided within the extraction rotary drum (2).

[0041] In the present invention, the first inner insert (11) is rotated synchronously with the rotating drum (1), the second inner insert (12) is extendable and rotated synchronously with the extension rotating drum (2), the vibration massage component (10) provides the vibration massage for the head end of the massage area, so that different massage effects are provided for different massage areas, thus enhancing the massage experience. Since the head cover (8) can be opened at different angles, the vibration massage component (10) provided on the head cover (8) is deflected at different angles with the opening of the head cover (8), thus providing different massage effects for different massage areas.

[0042] Referring to Fig. It is evident that in some embodiments of the present invention the vibration massage component (10) comprises a silicone end cap (101), a vibration motor (102) and a motor housing (103), a mounting seat (71) is provided on the outer housing (7) by which the head cap (8) and the silicone end cap (101) are attached, several massage projections are provided on a rear end of the silicone end cap (101) close to the rotating drum (1), and an enclosure chamber is formed at a front end of the silicone end cap (101) away from the rotating drum (1), within which the vibration motor (102) is arranged, which is provided inside the motor housing (103) and is supplied with power by a battery (75).

[0043] In the present invention, several massage projections are driven by the vibration motor (102) to generate vibration movements, so that a continuous vibration massage is provided for the massage areas.

[0044] Referring to Fig. and Fig. It is evident that in some embodiments of the present invention the mounting seat (71) comprises a first mounting part (711) and a second mounting part (712), the first mounting part (711) is firmly connected to the outer housing (7), magnets (713) are embedded in the first mounting part (711) and the second mounting part (712), the first mounting part (711) and the second mounting part (712) are rotatably connected by magnetic attraction, and the silicone end cap (101) and the top cap (8) are provided on the second mounting part (712).

[0045] In the present invention, the first fastening part (711) and the second fastening part (712) serve to provide a mounting base for the silicone end cap (101) and the top cap (8). Because the second fastening part (712) and the first fastening part (711) are attracted by the magnet (713), the second fastening part (712) can be opened and rotated together with the top cap (8) when the force exerted on the second fastening part (712) exceeds the magnetic force, in order to facilitate the control of the different angles of the vibration massage component (10).

[0046] Specifically, a bolt structure is formed on the first fastening part (711), a bolt hole structure is formed on the second fastening part (712) that rotates to fit the bolt structure, and a damper is provided at a connection point between the bolt structure and the bolt hole structure so that the second fastening part (712) together with the head cover (8) can be maintained relative to the first fastening part (711) at several opening angles when stopped in a suspended position. When the first fastening part (711) is in contact with the second fastening part (712) by magnetic attraction, i.e.When the head cover (8) is in a fully closed state, the silicone end cover (101) is located on an outer end face directly at the center of the first inner insert (11). The head end of the massage area projecting from the first inner insert (11) can be massaged directly against the silicone end cover (101). When the second fastening part (712) is rotated with the head cover (8) at a certain angle, a certain oblique angle is formed at the silicone end cover (101) relative to a longitudinal cross-section of the first inner insert (11). This means that the side of the head end of the massage area projecting from the first inner insert (11) is in contact with the silicone end cover (101) and is massaged, thus enabling a different massage experience.

[0047] Referring to Fig. It is evident that in some embodiments of the present invention a first retaining ring (72) and a second retaining ring (73) are fixedly provided within the outer housing (7), the first toothed ring (4) is provided between the first retaining ring (72) and the arrangement drum (3), and the second toothed ring (5) is provided between the second retaining ring (73) and the arrangement drum (3).

[0048] In the present invention, the first retaining ring (72) serves to limit the first toothed ring (4) and the rotating drum (1), the second retaining ring (73) serves to limit the second toothed ring (5) and the end part of the extraction rotating drum (2).

[0049] Referring to Fig. and Fig. It is evident that in some embodiments of the present invention a first arrangement opening is provided on the outer housing (7), within which a push-button switch (74) is arranged, the inside of which is connected to a first control panel, a power source housing (76) is provided within the outer housing (7), a battery (75) is arranged within the power source housing (76), the first control panel is provided on one side of the power source housing (76) and is electrically connected to the battery (75).

[0050] In the present invention, the first control panel can be connected not only to the internal battery (75) but also to an external power source; if the battery (75) is internal, a charging interface is provided on the outer housing (7) through which the battery (75) can be charged.

[0051] Referring to Fig.It is evident that in some embodiments of the present invention a second arrangement opening is provided on the outer housing (7), within which a cover plate fastening part (77) is provided, a watertight sealing ring is provided between the cover plate fastening part (77) and the second arrangement opening, a visual cover plate is arranged on the cover plate fastening part (77), on the inside of which a second control panel is arranged, a light shield (78) is provided between the visual cover plate and the second control panel, an arrangement seat (79) is provided on the cover plate fastening part (77), and an end part of the guide part (31) facing away from the guide slot (22) is connected to the arrangement seat (79).

[0052] In the present invention, the inner part of the massage device can be protected from water by providing a waterproof sealing ring. Furthermore, rubber plugs are provided on the motor housing (103), power source housing (76), and gearbox housing (61) to ensure waterproofing.

[0053] In the operation of the present invention, the electric motor (62) is started by means of the push-button switch (74), the rotating shaft of the electric motor (62) drives the worm (631) to synchronous rotation, the worm (631) drives the turbine wheel (630) engaged with it to rotation, so that the wheel shaft (632) and the first bevel gear (633) are rotated on it, because of the engagement of the second bevel gear (634) and the third bevel gear (635) with the first bevel gear (633), the first drive wheel (638) and the second drive wheel (639) can each be driven to synchronous rotation by the first drive shaft (636) and the second drive shaft (637), so that the first tooth ring (4) and the second tooth ring (5) are driven to rotation. Since the first toothed ring (4) is firmly connected to the rotating drum (1), the rotating movement of the rotating drum (1) can be carried out, and the first inner insert (11) within it can achieve the effect of the rotary massage.Because the second toothed ring (5) is slidably connected to the limiting groove (21) of the extension drum (2) by the limiting projection (51), relative sliding occurs between the guide part (31) and the guide slot (22) when the second toothed ring (5) is rotated. Since the guide slot (22) is inclined in the axial direction and the position of the guide part (31) is relatively fixed, the guide part (31) can actuate the guide slot (22) for axial movement when the extension drum (2) is rotated. This means the extension drum (2) is not only radially rotatable but also axially extendable, allowing the second inner insert (12) within it to achieve the massaging effect of rotation and extension. Simultaneously, the vibration motor (102) is activated, which causes several massage projections on the silicone end cap (101) to provide the vibration massage effect.The massage device of the present invention can provide different massage functions depending on the different massage areas, so that the massage effect has variety and layering, and the massage experience can be enhanced.

[0054] The above-mentioned are merely preferred embodiments of the present invention and therefore do not limit the scope of protection of the present invention. All equivalent structural modifications carried out under the inventive concept of the present invention using the content of the description and the illustrations of the present invention, or the direct / indirect applications in other relevant technical fields fall within the scope of protection of the present invention. QUOTES INCLUDED IN THE DESCRIPTION

[0000] This list of documents cited by the applicant was automatically generated and is included solely for the reader's convenience. The list is not part of the German patent or utility model application. The DPMA accepts no liability for any errors or omissions. Cited patent literature

[0000] CN 117100567B

[0003]

Claims

[1] A rotary extension mechanism, characterized bythat this comprises a rotating drum (1), a pulling drum (2), and an arrangement drum (3), the rotating drum (1) and the pulling drum (2) are arranged coaxially spaced within the arrangement drum (3), a first toothed ring (4) is fixedly connected to the rotating drum (1), a second toothed ring (5) is slidably connected to the pulling drum (2), a drive mechanism (6) is provided on an outer side of the arrangement drum (3), the gear of which engages with the first toothed ring (4) and the second toothed ring (5), a limiting groove (21) is provided on an outer wall of the pulling drum (2) in the axial direction, a limiting projection (51) which slidably fits the limiting groove (21) is provided on an inner wall of the second toothed ring (5), and a guide slot (22) is provided on the outer wall of the pulling drum (2) in the circumferential direction, which is inclined in the axial direction is,A guide element (31) is provided continuously on one side wall of the arrangement drum (3), the inner end of which projects into the guide slot (22). [2] A rotary extension mechanism according to claim 1, characterized by , that the drive mechanism (6) comprises a gearbox housing (61), an electric motor (62) and a drive gear assembly (63), the gearbox housing (61) is provided on the outside of the arrangement drum (3), the electric motor (62) is fixedly provided inside the gearbox housing (61) and is supplied with power by a battery (75), a rotating shaft of the electric motor (62) is in drive connection with the drive gear assembly (63), a first drive wheel (638) of the drive gear assembly (63) is in engagement with the first tooth ring (4), a second drive wheel (639) of the drive gear assembly (63) is in engagement with the second tooth ring (5). [3] A rotary extension mechanism according to claim 2, characterized bythat the drive gear assembly (63) comprises a turbine wheel (630), a worm gear (631) and a wheel shaft (632), the worm gear (631) is connected to the rotating shaft of the electric motor (62), the wheel shaft (632) is arranged to rotate within the gearbox, the turbine wheel (630) is mounted on the wheel shaft (632) and engages with the worm gear (631), a first bevel gear (633) is mounted on the wheel shaft (632), with which a second bevel gear (634) and a third bevel gear (635), which are arranged coaxially, a first drive shaft (636) is connected to the second bevel gear (634), which passes through the gearbox housing (61) and is connected to a first drive wheel (638), a second drive shaft (637) is connected to the third bevel gear (635), which passes through the gearbox housing (61) passes through and is connected to a second drive wheel (638). [4] A rotary extension mechanism according to claim 1, characterized by, that the guide slot (22) comprises two annular stiffening ribs (23) which are provided parallel and spaced apart, the two annular stiffening ribs (23) are provided obliquely in the axial direction around an outer wall of the extraction rotary drum (2), the guide part (31) is provided between the two annular stiffening ribs (23), two circular annular stiffening ribs (24) are provided one to one on both sides of the two annular stiffening ribs (23), the two circular annular stiffening ribs (24) are in contact fit with an inner wall of the arrangement drum (3), the circular annular stiffening ribs (24) are provided spaced apart from the limiting groove (21) and the annular stiffening ribs (23). [5] A multifunctional massage device, characterized bythat it comprises an outer housing (7), a top cover (8), a back cover (9) and a rotary extension mechanism according to one of claims 1 to 4, the rotary extension mechanism being provided within the outer housing (7), the top cover (8) being rotatably opened and closed at an end part on the outer housing (7) corresponding to the rotary drum (1), a vibration massage component (10) being provided within the top cover (8), the top cover (8) being able to be suspended at points of several opening angles, so that the vibration massage component (10) provides the massage of several angles, the back cover (9) being openable and closable at an end part on the outer housing (7) corresponding to the extension rotary drum (2), a first inner insert (11) being fixedly provided within the rotary drum (1), a second inner insert (12) being fixedly provided within the extension rotary drum (2). [6] A multifunctional massage device according to claim 5, characterized by , that the vibration massage component (10) comprises a silicone end cap (101), a vibration motor (102) and a motor housing (103), a mounting seat (71) is provided on the outer housing (7) by which the head cap (8) and the silicone end cap (101) are attached, several massage projections are provided on a rear end of the silicone end cap (101) close to the rotating drum (1), an enclosure chamber is formed on a front end of the silicone end cap (101) away from the rotating drum (1), within which the vibration motor (102) is arranged, which is provided inside the motor housing (103) and is powered by a battery (75). [7] A multifunctional massage device according to claim 6, characterized by, that the mounting seat (71) comprises a first mounting part (711) and a second mounting part (712), the first mounting part (711) is firmly connected to the outer housing (7), magnets (713) are embedded in the first mounting part (711) and the second mounting part (712) accordingly, the first mounting part (711) and the second mounting part (712) are rotatably connected by magnetic attraction, and the silicone end cap (101) and the head cap (8) are provided on the second mounting part (712). [8] A multifunctional massage device according to claim 5, characterized by , that a first retaining ring (72) and a second retaining ring (73) are fixedly provided inside the outer housing (7), the first toothed ring (4) is provided between the first retaining ring (72) and the arrangement drum (3), the second toothed ring (5) is provided between the second retaining ring (73) and the arrangement drum (3). [9] A multifunctional massage device according to claim 5, characterized by , that a first arrangement opening is provided on the outer housing (7), within which a push-button switch (74) is arranged, the inside of which is connected to a first control panel, a power source housing (76) is provided within the outer housing (7), a battery (75) is arranged within the power source housing (76), the first control panel is provided on one side of the power source housing (76) and is electrically connected to the battery (75). [10] A multifunctional massage device according to claim 5, characterized by, that a second mounting opening is provided on the outer housing (7), within which a cover plate mounting part (77) is provided, a watertight sealing ring is provided between the cover plate mounting part (77) and the second mounting opening, a visual cover plate is arranged on the cover plate mounting part (77), on the inside of which a second control panel is arranged, a light shield (78) is provided between the visual cover plate and the second control panel, a mounting seat (79) is provided on the cover plate mounting part (77), and an end part of the guide part (31) facing away from the guide slot (22) is connected to the mounting seat (79).

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