Massage device with adjustable radial massage force
By designing a massage device that can adjust the radial massage force, the problem of insufficient massage in the existing 3D massage machines is solved, and a richer and more effective massage techniques are achieved.
Patent Information
- Application Number
- CN202110491199.2
- Authority / Receiving Office
- CN · China
- Patent Type
- Patents(China)
- Current Assignee / Owner
- Filing Date
- 2021-05-06
- Publication Date
- 2025-03-25
- Estimated Expiration
- 2041-05-06
AI Technical Summary
When the existing 3D massage machines realize 3D radial movement, the lower massage ball on the massage arm has a small rotation radius, resulting in a small movement arc length caused by rotation at the same rotation angle, resulting in insufficient massage and poor human massage experience.
A massage device that can adjust the radial massage force is designed, including a rotary load bearing shaft provided on the frame, a radial driving mechanism, a first massage mechanism, a force-applying adjustment mechanism and a second massage mechanism. Through the cooperation of the radial drive mechanism and the force-applying adjustment mechanism, the massage arm assembly can rotate about the rotary load bearing shaft and the first massage shaft to achieve a variable radial massage force.
The massage arm assembly exerts variable radial massage force on the user, enhancing the richness and effect of the massage, and improving the human massage experience.
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Figure CN113101165B_ABST
Abstract
Description
Technical Field
[0001] The invention relates to the technical field of massage equipment, in particular to a massage device capable of adjusting radial massage force. Background Art
[0002] Massage chairs are a kind of health care equipment that is deeply loved by people. At present, the development of massage chairs is constantly updated, and new massage chairs emerge in an endless stream. Massage chairs are developing in the direction of multi-function and humanization. The multi-function and humanization of massage chairs mainly rely on the multi-dimensional and diversified massage movement parts of the massage movement.
[0003] At present, the 3D massage machines on the market, especially the massage machines with two upper and lower massage balls on the left and right massage arms, generally use the two massage balls on the massage arms as a whole. When the massage machine realizes the 3D massage function, the two massage balls move upward or downward relative to the back of the human body. In this process, since the 3D radial motion rotates around a rotation point outside the massage arm, the lower massage ball on the massage arm that is closer to the rotation point has a small rotation radius. Under the same rotation angle, the arc length of the motion caused by its rotation is small, resulting in insufficient massage of the lower massage ball on the back and poor human massage experience. For example, the existing patent (application number: 201320209257.9) discloses a 3D kneading and percussion massage manipulator, which has only one radial 3D drive component 3, so that the curved arm massage head component 23 can only rotate around one rotation point. Summary of the invention
[0004] In view of the shortcomings of the prior art mentioned above, the technical problem to be solved by the present invention is to provide a massage device with adjustable radial massage force, which can not only make the massage arm assembly rotate around the rotary bearing shaft, but also rotate around the first massage axis, so that the massage arm assembly can apply variable radial massage force to the user, thereby realizing richer massage techniques.
[0005] In order to solve the above technical problems, the present invention provides a massage device capable of adjusting radial massage force, comprising:
[0006] A rotary bearing shaft provided on the frame;
[0007] The radial drive mechanism includes a radial drive shaft arranged on the frame, a radial gear arranged on the radial drive shaft, a radial plate rotatably sleeved on the rotary bearing shaft with the axis of the rotary bearing shaft as the rotation center line, and a radial rack arranged on the radial plate, wherein the radial rack is meshed with the radial gear;
[0008] A first massage mechanism, the first massage mechanism comprising a first massage shaft rotatably penetrating the radial plate and a massage arm assembly rotatably sleeved on the first massage shaft;
[0009] The force adjustment mechanism includes an adjustment drive shaft arranged on the frame, an adjustment gear arranged on the adjustment drive shaft, an adjustment plate rotatably sleeved on the rotary bearing shaft with the axis of the rotary bearing shaft as the rotation center line, and an adjustment rack arranged on the adjustment plate, wherein the adjustment rack is meshed with the adjustment gear;
[0010] The second massage mechanism comprises a second massage shaft rotatably arranged on the adjustment plate and a connecting rod assembly connecting the massage arm assembly and the second massage shaft.
[0011] Preferably, the connecting rod assembly includes a push-pull rod, one end of the push-pull rod in the extension direction is connected to the massage arm assembly via a first joint connection structure so that the push-pull rod can perform one or more of swinging motion, rotational motion, and tilting motion relative to the massage arm assembly, and the other end of the push-pull rod in the extension direction is connected to the second massage shaft via a second joint connection structure so that the push-pull rod can perform one or more of swinging motion, rotational motion, and tilting motion relative to the second massage shaft.
[0012] Preferably, the first joint connection structure comprises an articulated seat and an articulated head which cooperate with each other, the articulated seat is formed on the massage arm assembly, and the articulated head is formed on the end of the push-pull rod.
[0013] Preferably, the second joint connection structure comprises a connecting ear and a shaft sleeve which are hinged to each other, the connecting ear is formed at the end of the push-pull rod, and the shaft sleeve is rotatably sleeved on the second massage shaft.
[0014] Preferably, the first massage mechanism further comprises a first drive motor arranged on the radial plate, and the first drive motor is sequentially connected to the first massage shaft through a first belt transmission assembly and a worm gear assembly.
[0015] Preferably, the second massage mechanism further comprises a second drive motor disposed on the adjustment plate, and the second drive motor is transmission-connected to the second massage shaft via a second belt transmission assembly.
[0016] Preferably, a kneading and deflecting wheel is provided on the first massage shaft, the center point of the kneading and deflecting wheel deviates from the axis of the first massage shaft, and the angle between the center line of the kneading and deflecting wheel and the axis of the first massage shaft is an acute angle, and the massage arm assembly is rotatably sleeved on the kneading and deflecting wheel.
[0017] Preferably, a knocking eccentric wheel is provided on the second massage shaft, the center point of the knocking eccentric wheel deviates from the axis of the second massage shaft, and the part of the connecting rod assembly facing the second massage shaft is rotatably sleeved on the knocking eccentric wheel.
[0018] Preferably, the massage arm assembly comprises a main arm rotatably sleeved on the first massage axis, a forked arm arranged on the main arm, and a plurality of massage balls arranged on the forked arm.
[0019] Preferably, the forked arm comprises a long arm portion and a short arm portion which are angled with each other, the number of the massage balls is two and they are respectively arranged at the suspended ends of the long arm portion and the short arm portion, and the distance between the massage ball arranged at the long arm portion and the rotating bearing shaft is greater than the distance between the massage ball arranged at the short arm portion and the rotating bearing shaft.
[0020] As described above, the massage device with adjustable radial massage force of the present invention has the following beneficial effects: In the present invention, firstly, the rotary bearing shaft, the radial drive shaft and the adjustable drive shaft are all arranged on the frame, that is, the relative positions between the rotary bearing shaft, the radial drive shaft and the adjustable drive shaft remain unchanged. Then, the radial plate of the radial drive mechanism is rotatably sleeved on the rotary bearing shaft with the axis of the rotary bearing shaft as the rotation center line, and the radial gear arranged on the radial drive shaft is meshed with the radial rack arranged on the radial plate. In this way, under the rotation of the radial drive shaft, the radial plate can rotate forward and reverse around the rotary bearing shaft. Similarly, the adjustment plate of the force adjustment mechanism is rotatably sleeved on the rotary bearing shaft with the axis of the rotary bearing shaft as the rotation center line, and the adjustment gear arranged on the adjustable drive shaft is meshed with the adjustment rack arranged on the adjustment plate. In this way, under the rotation of the adjustable drive shaft, the adjustment plate can rotate forward and reverse around the rotary bearing shaft. Then, the first massage shaft is rotatably inserted into the radial plate, and the massage arm assembly is rotatably sleeved on the first massage shaft, and at the same time, the connecting rod assembly connects the massage arm assembly and the second massage shaft together. When the radial drive shaft rotates forward or reversely and the adjustment drive shaft stops, the massage arm assembly is constrained by the connecting rod assembly while rotating around the rotary bearing shaft driven by the radial plate. When the radial drive shaft stops and the adjustment drive shaft rotates forward or reversely, the massage arm assembly rotates around the first massage shaft driven by the connecting rod assembly. When the radial drive shaft rotates forward or reversely and the adjustment drive shaft rotates forward or reversely, the massage arm assembly rotates around the rotary bearing shaft driven by the radial plate while rotating around the first massage shaft driven by the connecting rod assembly. Finally, the massage device with adjustable radial massage force of the present invention can not only rotate the massage arm assembly around the rotary bearing shaft, but also rotate around the first massage shaft, so that the massage arm assembly can apply variable radial massage force to the user, achieving richer massage techniques. BRIEF DESCRIPTION OF THE DRAWINGS
[0021] Figure 1 A schematic diagram showing a massage device with adjustable radial massage force according to the present invention;
[0022] Figure 2 A schematic diagram showing a first massage mechanism;
[0023] Figure 3 Shown is a schematic diagram of a force adjustment mechanism and a second massage mechanism;
[0024] Figure 4A schematic diagram showing a radial drive mechanism and a first massage mechanism;
[0025] Figure 5 Shown is a schematic diagram of the massage arm assembly and linkage assembly.
[0026] Component number description
[0027] 1 Rotating bearing shaft
[0028] 2 Radial drive mechanism
[0029] 21 Radial drive shaft
[0030] 22 Radial gear
[0031] 23 Radial Plate
[0032] 24 Radial rack
[0033] 3. First Massage Institution
[0034] 31 First massage axis
[0035] 32 Massage Arm Assembly
[0036] 321 Main Boom
[0037] 322 Fork Arm
[0038] 322a Long arm
[0039] 322b Short arm
[0040] 323 Massage Ball
[0041] 33 First drive motor
[0042] 34 First belt drive assembly
[0043] 35 Kneading deflection wheel
[0044] 4 Force adjustment mechanism
[0045] 41 Adjusting the drive shaft
[0046] 42 Adjustment gear
[0047] 43 Adjustment plate
[0048] 44 Adjustment rack
[0049] 5 Second Massage Agency
[0050] 51 Second massage axis
[0051] 52 Connecting rod assembly
[0052] 521 Push-Pull Rod
[0053] 522 First joint connection structure
[0054] 522a Articulated seat
[0055] 522b Articulated joint
[0056] 523 Second joint connection structure
[0057] 523a Connecting ear
[0058] 523b Bushing
[0059] 53 Second drive motor
[0060] 54 Second belt drive assembly
[0061] 55. Tap the eccentric wheel DETAILED DESCRIPTION
[0062] The following is a description of the implementation of the present invention by means of specific embodiments. Those skilled in the art can easily understand other advantages and effects of the present invention from the contents disclosed in this specification.
[0063] It should be noted that the structures, proportions, sizes, etc. illustrated in the drawings of this specification are only used to match the contents disclosed in the specification for people familiar with this technology to understand and read, and are not used to limit the limiting conditions for the implementation of the present invention, so they have no substantial technical significance. Any modification of the structure, change of the proportion relationship or adjustment of the size, without affecting the effects and purposes that can be achieved by the present invention, should still fall within the scope of the technical content disclosed by the present invention. At the same time, the terms such as "upper", "lower", "left", "right", "middle" and "one" quoted in this specification are only for the convenience of description, and are not used to limit the scope of the implementation of the present invention. The change or adjustment of their relative relationship should also be regarded as the scope of the implementation of the present invention without substantially changing the technical content.
[0064] like Figure 1 , Figure 2 , Figure 3 as well as Figure 4 As shown, the present invention provides a massage device capable of adjusting radial massage force, comprising:
[0065] A rotary bearing shaft 1 provided on the frame;
[0066] The radial drive mechanism 2 includes a radial drive shaft 21 disposed on the frame, a radial gear 22 disposed on the radial drive shaft 21, a radial plate 23 rotatably sleeved on the rotary bearing shaft 1 with the axis of the rotary bearing shaft 1 as the rotation center line, and a radial rack 24 disposed on the radial plate 23, wherein the radial rack 24 is meshed with the radial gear 22;
[0067] A first massage mechanism 3, the first massage mechanism 3 comprises a first massage shaft 31 rotatably penetrated through the radial plate 23 and a massage arm assembly 32 rotatably sleeved on the first massage shaft 31;
[0068] The force adjustment mechanism 4 includes an adjustment drive shaft 41 provided on the frame, an adjustment gear 42 provided on the adjustment drive shaft 41, an adjustment plate 43 rotatably sleeved on the rotary bearing shaft 1 with the axis of the rotary bearing shaft 1 as the rotation center line, and an adjustment rack 44 provided on the adjustment plate 43, wherein the adjustment rack 44 is meshed with the adjustment gear 42;
[0069] The second massage mechanism 5 includes a second massage shaft 51 rotatably disposed on the adjustment plate 43 and a connecting rod assembly 52 connecting the massage arm assembly 32 and the second massage shaft 51 together.
[0070] In the present invention, first, the rotary bearing shaft 1, the radial drive shaft 21 and the adjusting drive shaft 41 are all arranged on the frame, that is, the relative positions between the rotary bearing shaft 1, the radial drive shaft 21 and the adjusting drive shaft 41 remain unchanged. Then, the radial plate 23 of the radial drive mechanism 2 is rotatably sleeved on the rotary bearing shaft 1 with the axis of the rotary bearing shaft 1 as the rotation center line, and the radial gear 22 arranged on the radial drive shaft 21 and the radial rack 24 arranged on the radial plate 23 are meshed. In this way, under the rotation of the radial drive shaft 21, the radial plate 23 can rotate forward and reverse around the rotary bearing shaft 1. Similarly, the adjusting plate 43 of the force adjustment mechanism 4 is rotatably sleeved on the rotary bearing shaft 1 with the axis of the rotary bearing shaft 1 as the rotation center line, and the adjusting gear 42 arranged on the adjusting drive shaft 41 and the adjusting rack 44 arranged on the adjusting plate 43 are meshed. In this way, under the rotation of the adjusting drive shaft 41, the adjusting plate 43 can rotate forward and reverse around the rotary bearing shaft 1. Then, the first massage shaft 31 rotates and penetrates the radial plate 23, and the massage arm assembly 32 rotates and sleeves on the first massage shaft 31, and at the same time, the connecting rod assembly 52 connects the massage arm assembly 32 and the second massage shaft 51 together. When the radial drive shaft 21 rotates forward or reversely and the adjustment drive shaft 41 stops, the massage arm assembly 32 is constrained by the connecting rod assembly 52 and rotates around the rotary bearing shaft 1 driven by the radial plate 23. When the radial drive shaft 21 stops and the adjustment drive shaft 41 rotates forward or reversely, the massage arm assembly 32 rotates around the first massage shaft 31 driven by the connecting rod assembly 52. When the radial drive shaft 21 rotates forward or reversely and the adjustment drive shaft 41 rotates forward or reversely, the massage arm assembly 32 rotates around the rotary bearing shaft 1 driven by the radial plate 23 and rotates around the first massage shaft 31 driven by the connecting rod assembly 52. Finally, the massage device with adjustable radial massage force of the present invention can not only make the massage arm assembly 32 rotate relative to the rotary bearing shaft 1, but also rotate around the first massage shaft 31, so that the massage arm assembly 32 applies variable radial massage force to the user, realizing richer massage techniques.
[0071] like Figure 1 , Figure 3 as well as Figure 5 As shown, in order to generate linkage between the above-mentioned second massage shaft 51 and the massage arm assembly 32 and avoid motion interference between the second massage shaft 51 and the massage arm assembly 32, the above-mentioned connecting rod assembly 52 includes a push-pull rod 521, one end of the push-pull rod 521 in the extension direction is connected to the massage arm assembly 32 through a first joint connection structure 522 so that the push-pull rod 521 can perform one or more of swinging motion, rotational motion, and tilting motion relative to the massage arm assembly 32, and the other end of the push-pull rod 521 in the extension direction is connected to the second massage shaft 51 through a second joint connection structure 523 so that the push-pull rod 521 can perform one or more of swinging motion, rotational motion, and tilting motion relative to the second massage shaft 51.
[0072] like Figure 3 and Figure 5 As shown in FIG. 1 , as an embodiment of the first joint connection structure 522, the first joint connection structure 522 includes a hinge seat 522a and a hinge head 522b that cooperate with each other, the hinge seat 522a is formed on the massage arm assembly 32, and the hinge head 522b is formed on the end of the push-pull rod 521. With such a configuration, the push-pull rod 521 has more freedom of movement relative to the massage arm assembly 32.
[0073] like Figure 3 and Figure 5 As shown in FIG. 1 , as an embodiment of the second joint connection structure 523, the second joint connection structure 523 comprises a connecting ear 523a and a shaft sleeve 523b which are hinged to each other, the connecting ear 523a is formed at the end of the push-pull rod 521, and the shaft sleeve 523b is rotatably sleeved on the second massage shaft 51. In this way, the push-pull rod 521 and the second massage shaft 51 can be detachably connected.
[0074] like Figure 4 As shown, in order to realize the rotation of the first massage shaft 31, the first massage mechanism 3 also includes a first drive motor 33 arranged on the radial plate 23, and the first drive motor 33 is sequentially connected to the first massage shaft 31 through a first belt transmission assembly 34 and a worm gear assembly.
[0075] like Figure 3 As shown, in order to realize the rotation of the second massage shaft 51 , the second massage mechanism 5 further includes a second drive motor 53 disposed on the adjustment plate 43 , and the second drive motor 53 is transmission-connected to the second massage shaft 51 via a second belt transmission assembly 54 .
[0076] like Figure 2 As shown, in order to make the massage arm assembly 32 produce a kneading action on the user, a kneading deflection wheel 35 is provided on the first massage shaft 31, the center point of the kneading deflection wheel 35 deviates from the axis of the first massage shaft 31, and the angle between the center line of the kneading deflection wheel 35 and the axis of the first massage shaft 31 is an acute angle, and the massage arm assembly 32 is rotatably sleeved on the kneading deflection wheel 35.
[0077] like Figure 1 As shown, in order to make the massage arm assembly 32 produce a knocking action on the user, a knocking eccentric wheel 55 is provided on the second massage shaft 51, and the center point of the knocking eccentric wheel 55 deviates from the axis of the second massage shaft 51, and the connecting rod assembly 52 is partially rotated toward the second massage shaft 51 and is sleeved on the knocking eccentric wheel 55.
[0078] like Figure 5As shown, the massage arm assembly 32 comprises a main arm 321 rotatably sleeved on the first massage shaft 31, a bifurcated arm 322 arranged on the main arm 321, and a plurality of massage balls 323 arranged on the bifurcated arm 322. Specifically, the bifurcated arm 322 comprises a long branch arm portion 322a and a short branch arm portion 322b which are angled with each other, the number of the massage balls 323 is two and they are arranged at the suspended ends of the long branch arm portion 322a and the short branch arm portion 322b respectively, and the distance between the massage ball 323 arranged on the long branch arm portion 322a and the rotary bearing shaft 1 is greater than the distance between the massage ball 323 arranged on the short branch arm portion 322b and the rotary bearing shaft 1.
[0079] For example, when the radial drive shaft 21 rotates in a preset rotation direction and the adjustment drive shaft 41 stops, the massage ball 323 provided at the long arm portion 322a exerts a greater force on the user, while the massage ball 323 provided at the short arm portion 322b exerts a smaller force on the user. When the user needs the massage ball 323 provided at the short arm portion 322b to exert a greater force on himself, the radial drive shaft 21 is stopped and the adjustment drive shaft 41 is rotated in a preset rotation direction, so that the massage ball 323 provided at the short arm portion 322b protrudes further from the frame, thereby increasing the force applied to the user by the massage ball 323 provided at the short arm portion 322b.
[0080] In summary, the massage device with adjustable radial massage force of the present invention can not only make the massage arm assembly 32 rotate relative to the rotary bearing shaft 1, but also rotate around the first massage shaft 31, so that the massage arm assembly 32 applies variable radial massage force to the user, achieving more diverse massage techniques. Therefore, the present invention effectively overcomes various shortcomings in the prior art and has high industrial utilization value.
[0081] The above embodiments are merely illustrative of the principles and effects of the present invention, and are not intended to limit the present invention. Anyone familiar with the art may modify or alter the above embodiments without departing from the spirit and scope of the present invention. Therefore, all equivalent modifications or alterations made by a person of ordinary skill in the art without departing from the spirit and technical concept disclosed by the present invention shall still be covered by the claims of the present invention.
Claims
1. A massage device with adjustable radial massage force, characterized in that: include: A rotary bearing shaft (1) arranged on the frame; A radial drive mechanism (2), the radial drive mechanism (2) comprising a radial drive shaft (21) arranged on a frame, a radial gear (22) arranged on the radial drive shaft (21), a radial plate (23) rotatably sleeved on the rotary bearing shaft (1) with the axis of the rotary bearing shaft (1) as a rotation center line, and a radial rack (24) arranged on the radial plate (23), wherein the radial rack (24) meshes with the radial gear (22); A first massage mechanism (3), the first massage mechanism (3) comprising a first massage shaft (31) rotatably penetrating the radial plate (23) and a massage arm assembly (32) rotatably sleeved on the first massage shaft (31); A force adjustment mechanism (4), the force adjustment mechanism (4) comprising an adjustment drive shaft (41) arranged on a frame, an adjustment gear (42) arranged on the adjustment drive shaft (41), an adjustment plate (43) rotatably sleeved on the rotary bearing shaft (1) with the axis of the rotary bearing shaft (1) as a rotation center line, and an adjustment rack (44) arranged on the adjustment plate (43), wherein the adjustment rack (44) is meshed with the adjustment gear (42); A second massage mechanism (5), the second massage mechanism (5) comprising a second massage shaft (51) rotatably inserted through the adjustment plate (43) and a connecting rod assembly (52) connecting the massage arm assembly (32) and the second massage shaft (51); The massage arm assembly (32) comprises a main arm (321) rotatably sleeved on the first massage shaft (31), a forked arm (322) arranged on the main arm (321), and a plurality of massage balls (323) arranged on the forked arm (322); The bifurcated arm (322) comprises a long branch arm portion (322a) and a short branch arm portion (322b) which are angled with each other. The number of the massage balls (323) is two and they are respectively arranged at the suspended ends of the long branch arm portion (322a) and the short branch arm portion (322b). The distance between the massage ball (323) arranged at the long branch arm portion (322a) and the rotary bearing shaft (1) is greater than the distance between the massage ball (323) arranged at the short branch arm portion (322b) and the rotary bearing shaft (1).
2. The massage device with adjustable radial massage force according to claim 1, characterized in that: The connecting rod assembly (52) comprises a push-pull rod (521), one end of the push-pull rod (521) in the extension direction is connected to the massage arm assembly (32) via a first joint connection structure (522) so that the push-pull rod (521) can perform one or more of swinging motion, rotational motion, and tilting motion relative to the massage arm assembly (32), and the other end of the push-pull rod (521) in the extension direction is connected to the second massage shaft (51) via a second joint connection structure (523) so that the push-pull rod (521) can perform one or more of swinging motion, rotational motion, and tilting motion relative to the second massage shaft (51).
3. The massage device with adjustable radial massage force according to claim 2, characterized in that: The first joint connection structure (522) comprises a hinge seat (522a) and a hinge head (522b) that cooperate with each other, the hinge seat (522a) is formed on the massage arm assembly (32), and the hinge head (522b) is formed on the end of the push-pull rod (521).
4. The massage device with adjustable radial massage force according to claim 2, characterized in that: The second joint connection structure (523) comprises a connecting ear (523a) and a shaft sleeve (523b) which are hinged to each other, the connecting ear (523a) is formed at the end of the push-pull rod (521), and the shaft sleeve (523b) is rotatably sleeved on the second massage shaft (51).
5. The massage device with adjustable radial massage force according to claim 1, characterized in that: The first massage mechanism (3) further comprises a first drive motor (33) arranged on the radial plate (23), and the first drive motor (33) is sequentially connected to the first massage shaft (31) through a first belt transmission assembly (34) and a worm gear assembly.
6. The massage device with adjustable radial massage force according to claim 1, characterized in that: The second massage mechanism (5) further comprises a second drive motor (53) arranged on the adjustment plate (43); the second drive motor (53) is transmission-connected to the second massage shaft (51) via a second belt transmission assembly (54).
7. The massage device with adjustable radial massage force according to claim 1, characterized in that: The first massage shaft (31) is provided with a kneading and deflecting wheel (35), the center point of the kneading and deflecting wheel (35) deviates from the axis of the first massage shaft (31), and the angle between the center line of the kneading and deflecting wheel (35) and the axis of the first massage shaft (31) is an acute angle, and the massage arm assembly (32) is rotatably sleeved on the kneading and deflecting wheel (35).
8. The massage device with adjustable radial massage force according to claim 1, characterized in that: The second massage shaft (51) is provided with a knocking eccentric wheel (55), the center point of which deviates from the axis of the second massage shaft (51), and the part of the connecting rod assembly (52) that is rotatable toward the second massage shaft (51) is sleeved on the knocking eccentric wheel (55).
Citation Information
Patent Citations
3D kneading and knocking massage manipulator
CN203220552U
Massage device capable of adjusting radial massage force
CN215021897U