Massage chair support

Abstract

The utility model provides a massage chair support which comprises a U-shaped support and a switching assembly. The U-shaped support is rotatably connected with the inner sides of the two frames of the massage chair body through a switching assembly, a first through hole is formed in the U-shaped support, the switching assembly comprises a bottom shell, a cover plate, a switching shaft and a connecting base, the connecting base is connected with the massage chair body and rotatably connected with the bottom shell, and a first inner gear ring is arranged on the connecting base; the bottom shell is provided with a second inner gear ring coaxial with the first inner gear ring and a containing groove for containing the end of the U-shaped support, the side end and the top end of the containing groove are open, a positioning protruding column matched with the first through hole is arranged in the containing groove, the switching shaft is provided with an outer gear ring matched with the first inner gear ring and the second inner gear ring, and the outer gear ring is provided with a second inner gear ring matched with the first inner gear ring and the second inner gear ring. The switching shaft movably penetrates through the bottom shell, the cover plate and the connecting base so that the outer gear ring can be switched between the position where the outer gear ring is synchronously meshed with the first inner gear ring and the second inner gear ring or the position where the outer gear ring is only meshed with the second inner gear ring, and the cover plate covers the bottom shell and shields the open position of the side end of the containing groove.

Description

TECHNICAL FIELD

[0001] The utility model relates to massage chair technical field, concretely relates to a massage chair support. BACKGROUND

[0002] Massage chair in the use process, often need to be equipped with auxiliary support to realize diversification function, such as placing mobile phone on the support convenient operation, put spray etc. Small object is convenient to take, this kind of auxiliary support is the important accessory of promotion massage chair use experience. At present, the auxiliary support of massage chair on the market is fixedly installed at the massage chair handrail, its structure design is single, all are the fixed structure of non-rotatable, cannot be stored according to the use demand. When not using, the support is exposed at the handrail for a long time, not only occupies space, but also can destroy the coordination of massage chair overall modeling, influence the degree of beauty. Therefore, urgently needed a kind of massage chair support that can be flexibly stored, does not destroy the overall beauty of massage chair, and can realize auxiliary function, to solve the above-mentioned defects existing in the prior art. SUMMARY

[0003] The utility model aims at at least one of the technical problems in the above-mentioned technology. To this end, the utility model aims at providing a massage chair support, which can realize flexible flipping of a decorative component, firm installation of a decorative belt, and consideration of decoration and use convenience, and has a simple structure and convenient assembly.

[0004] To achieve the above-mentioned purpose, the utility model provides a massage chair support, which comprises a U-shaped support and an adapter assembly.

[0005] The U-shaped support is rotatably connected to the inner sides of the two side frames of the massage chair body through the adapter assembly, the U-shaped support is provided with a first through hole, the adapter assembly comprises a bottom shell, a cover plate, a switching shaft and a connecting seat, the connecting seat is connected to the massage chair body and rotatably connected to the bottom shell, the connecting seat is provided with a first inner gear ring, the bottom shell is provided with a second inner gear ring coaxial with the first inner gear ring, and a containing groove containing the end of the U-shaped support, the side end and the top end of the containing groove are open, the containing groove is provided with a positioning convex column matched with the first through hole, the switching shaft is provided with an outer gear ring matched with the first inner gear ring and the second inner gear ring, and the switching shaft is movably arranged in the bottom shell, the cover plate and the connecting seat, so that the outer gear ring is switched between the positions of synchronously engaging the first inner gear ring and the second inner gear ring, or only engaging the second inner gear ring, and the cover plate covers the bottom shell and covers the open side end of the containing groove.

[0006] The utility model provides a massage chair support, its through the switching subassembly realizes the rotatable connection of U shaped support and massage chair body, utilizes the rotation cooperation of connecting seat and bottom shell, the switching engagement of the switching shaft outside tooth ring, first internal tooth ring and second internal tooth ring is matched and switched, can flexibly control the fixing and rotation of U shaped support, realizes the nimble storage and unfolding of support. The cooperation of accommodating groove, positioning convex column and first through -hole can realize the assembly positioning of U shaped support and switching subassembly fast, the cover plate is shielded to accommodating groove side end, guarantees structural sealing property and aesthetic degree, whole structure design is reasonable, has solved the defect that current support cannot be stored, occupies the space, and gives consideration to practicality and aesthetic property.

[0007] In addition, the massage chair support according to the above-mentioned embodiments of the utility model can further have the following additional technical features.

[0008] Optionally, the switching subassembly further comprises a spring, the spring is sleeved on the switching shaft, and two ends of the spring are connected to the connecting seat and the switching shaft respectively to make the outside tooth ring have a restoring force for moving to a position where the first internal tooth ring and the second internal tooth ring are engaged synchronously.

[0009] Further, the switching shaft comprises an operation end extending out of the cover plate, the operation end is rotatably arranged relative to the shaft body of the switching shaft, the operation end is provided with a first limiting boss extending radially towards the switching shaft, the outer side of the cover plate is provided with a second limiting boss, and when the operation end is pulled out, the first limiting boss is made to abut against the second limiting boss by rotating, so that the outside tooth ring is kept at a position where the second internal tooth ring is engaged only.

[0010] Further, the second limiting boss is arranged around the switching shaft and forms a notch, and when the first limiting boss is rotated to the notch, the first limiting boss can be pulled by the spring and enter the notch, so that the outside tooth ring is kept at a position where the first internal tooth ring and the second internal tooth ring are engaged synchronously.

[0011] Optionally, the switching shaft comprises a limiting end extending out of the outer side of the connecting seat, and the limiting end is used for preventing the switching shaft from being separated from the connecting seat.

[0012] Optionally, the U-shaped support is provided with a mounting groove along its extension direction, the first through hole is arranged in the thickness direction of the U-shaped support, a decorative band is mounted in the mounting groove, and the decorative band is provided with a second through hole corresponding to the first through hole.

[0013] Further, a plurality of positioning protrusions are arranged in the mounting groove, and the decorative band is provided with a positioning groove matched with the positioning protrusions. BRIEF DESCRIPTION OF DRAWINGS

[0014] Figure 1 Assemble state structural diagram of the massage chair body, the U-shaped support and the adapter assembly according to the embodiment of the utility model;

[0015] Figure 2 Assemble state structural diagram of the U-shaped support and the adapter assembly according to the embodiment of the utility model;

[0016] Figure 3 Exploded view of the U-shaped support according to the embodiment of the utility model;

[0017] Figure 4 Structural diagram of the adapter assembly according to the embodiment of the utility model;

[0018] Figure 5 Structural diagram of the adapter assembly according to the embodiment of the utility model; Figure 4 Exploded view of the adapter assembly according to the embodiment of the utility model;

[0019] Figure 6 Structural diagram of the adapter assembly according to the embodiment of the utility model; Figure 4 Structural diagram of the adapter assembly according to the embodiment of the utility model;

[0020] Figure 7 Structural diagram of the adapter assembly according to the embodiment of the utility model; Figure 6 Sectional view along A-A;

[0021] Explanation of reference signs:

[0022] U-shaped support 1, first through hole 11, mounting groove 12, decorative band 13, second through hole 131, positioning groove 132, positioning protrusion 14, auxiliary support 15, adapter assembly 2, bottom shell 21, second inner gear ring 211, accommodating groove 212, positioning convex column 213, second annular convex edge 214, cover plate 22, second limiting boss 221, notch 222, switching shaft 23, outer gear ring 231, operation end 232, first limiting boss 2321, limiting end 233, connecting seat 24, first inner gear ring 241, first annular convex edge 242, spring 25, massage chair body 3. DETAILED DESCRIPTION

[0023] The embodiments of the utility model are described in detail below, examples of the embodiments are shown in the drawings, wherein the same or similar reference signs represent the same or similar elements or elements with the same or similar functions throughout. The embodiments described below by referring to the drawings are exemplary and are intended to explain the utility model, and cannot be understood as a limitation of the utility model.

[0024] In order to better understand the above technical solutions, the exemplary embodiments of the present application will be described in more detail below with reference to the accompanying drawings. Although the exemplary embodiments of the present application are shown in the drawings, it should be understood that the present application can be implemented in various forms and should not be limited by the embodiments described herein. On the contrary, these embodiments are provided so that the present application can be more thoroughly understood and the scope of the present application can be fully conveyed to those skilled in the art.

[0025] In order to better understand the above technical solutions, the exemplary embodiments of the present application will be described in more detail below with reference to the accompanying drawings. Although the exemplary embodiments of the present application are shown in the drawings, it should be understood that the present application can be implemented in various forms and should not be limited by the embodiments described herein. On the contrary, these embodiments are provided so that the present application can be more thoroughly understood and the scope of the present application can be fully conveyed to those skilled in the art.

[0026] The following will be described with reference to Figures 1-7 The implementation mode of the massage chair support according to the embodiments of the present application will be described in detail.

[0027] The massage chair support according to the embodiments of the present application comprises a U-shaped support 1 and an adapter assembly 2.

[0028] The U-shaped support 1 is rotatably connected to the inner sides of the two side frames of the massage chair body 3 through the adapter assembly 2. The U-shaped support 1 is provided with a first through hole 11. The adapter assembly 2 comprises a bottom shell 21, a cover plate 22, a switching shaft 23 and a connecting seat 24. The connecting seat 24 is connected to the massage chair body 3 and is rotatably connected to the bottom shell 21. The connecting seat 24 is provided with a first inner gear ring 241. The bottom shell 21 is provided with a second inner gear ring 211 coaxial with the first inner gear ring 241 and a receiving groove 212 accommodating the end of the U-shaped support 1. The side end and the top end of the receiving groove 212 are open. The receiving groove 212 is provided with a positioning protruding column 213 matched with the first through hole 11. The switching shaft 23 is provided with an outer gear ring 231 matched with the first inner gear ring 241 and the second inner gear ring 211. The switching shaft 23 is movably arranged in the bottom shell 21, the cover plate 22 and the connecting seat 24, so that the outer gear ring 231 is switched between the positions where the first inner gear ring 241 and the second inner gear ring 211 are synchronously engaged or only the second inner gear ring 211 is engaged. The cover plate 22 covers the bottom shell 21 and covers the open side end of the receiving groove 212.

[0029] That is, the core of the massage chair support is through the cooperation of the U-shaped support 1 and the adapter assembly 2, realizing the functions of support rotation and positioning. Specifically, the massage chair support is mainly composed of two parts of the U-shaped support 1 and the adapter assembly 2, wherein the U-shaped support 1 is used as the core bearing component, and is rotatably connected with the inner side of the two side frames of the massage chair body 3 through the adapter assembly 2, ensuring that the support can be flexibly flipped. The adapter assembly 2 is composed of a bottom shell 21, a cover plate 22, a switching shaft 23 and a connecting seat 24. The connecting seat 24 is fixed on the massage chair body 3, which is not only the installation basis of the adapter assembly 2, but also can rotate relative to the bottom shell 21. The connecting seat 24 and the bottom shell 21 are respectively provided with coaxial first and second inner gear rings 241 and 211. The bottom shell 21 is also provided with a receiving groove 212 for accommodating the end of the U-shaped support 1. The side end and the top end of the receiving groove 212 are open, and the positioning protruding column 213 in the receiving groove 212 is matched with the first through hole 11 on the U-shaped support 1, realizing the quick assembly and positioning of the two. The switching shaft 23 is provided with an outer gear ring 231 matched with the first and second inner gear rings 241 and 211, and can be movably arranged in the bottom shell 21, the cover plate 22 and the connecting seat 24. By switching the axial movement of the switching shaft 23, the outer gear ring 231 can be controlled to engage the first and second inner gear rings 241 and 211 at the same time to fix the support, or only engage the second inner gear ring 211 to realize the rotation of the support. The cover plate 22 covers the bottom shell 21 to block the side end of the receiving groove 212, ensuring the structural integrity. This scheme solves the defects of the existing support that cannot be accommodated and occupies space, and takes into account the practicability and aesthetics.

[0030] Among them, the user can switch the U-shaped support 1 between the flip state and the fixed state by pushing and pulling the switching shaft 23. The U-shaped support 1 is flipped to the top of the massage chair body 3 for storage. When in use, the U-shaped support 1 is flipped to the front of the user's head. The U-shaped support 1 can be installed with a sunshade cloth or an auxiliary support 15 for fixing a mobile phone or a spray for the user to use; The first and second annular protrusions 242 and 214 are provided on the connecting seat 24 and the bottom shell 21 one by one, and the first and second annular protrusions 242 and 214 are nested to form a rotatable connection between the connecting seat 24 and the bottom shell 21. The first and second annular protrusions 242 and 214 can also be synchronously arranged in the shaft holes of the connecting seat 24, the bottom shell 21 and the cover plate 22 through the switching shaft 23 to form a rotatable connection between the connecting seat 24 and the bottom shell 21; The connecting seat 24 and the massage chair body 3 can be connected by bolts.

[0031] Thus, the massage chair support realizes the rotatable connection of the U-shaped support 1 and the massage chair body 3 through the adapter assembly 2, utilizes the rotation matching of the connecting seat 24 and the bottom shell 21, matches the switching engagement of the outer gear ring 231 on the switching shaft 23 and the first inner gear ring 241 and the second inner gear ring 211, can flexibly control the fixing and rotation of the U-shaped support 1, realizes the flexible storage and expansion of the support, and realizes the assembly and positioning of the U-shaped support 1 and the adapter assembly 2 through the cooperation of the accommodating groove 212 and the positioning convex column 213 and the first through hole 11. The cover plate 22 shields the side end of the accommodating groove 212, ensures the structural sealing property and the aesthetic degree, the overall structural design is reasonable, solves the defects that the existing support cannot be stored and occupies space, and takes into account the practicability and the aesthetic property.

[0032] Optionally, the adapter assembly 2 further comprises a spring 25, the spring 25 is sleeved on the switching shaft 23, and the two ends of the spring 25 are correspondingly connected with the connecting seat 24 and the switching shaft 23, so that the outer gear ring 231 has a restoring force for moving towards the position of synchronous engagement of the first inner gear ring 241 and the second inner gear ring 211. It can be understood that the spring 25 is arranged to provide stable reset power for the switching shaft 23, ensure that the outer gear ring 231 can always keep the state of synchronous engagement with the first inner gear ring 241 and the second inner gear ring 211 when there is no external force, and then make the U-shaped support 1 stably fixed at the target position, avoid the rotation of the support due to accidental stress in the use process, and improve the use safety and stability. At the same time, when the user needs to rotate the support, only needs to pull the switching shaft 23 outward to overcome the spring force of the spring 25, so as to make the outer gear ring 231 disengage from the first inner gear ring 241, which is convenient to operate and does not need to additionally use tools. The spring 25 is selected as a tension spring, one end of which is connected with the inner wall of the connecting seat 24, and the other end is connected with the side end of the outer gear ring 231.

[0033] Further, the switching shaft 23 comprises an operation end 232 extending out of the cover plate 22, the operation end 232 is rotatably arranged relative to the shaft body of the switching shaft 23, and the operation end 232 is provided with a first limiting boss 2321 extending radially towards the switching shaft 23, and the outer side of the cover plate 22 is provided with a second limiting boss 221, when the operation end 232 is pulled out, the first limiting boss 2321 is rotated to abut against the second limiting boss 221, so that the outer gear ring 231 is kept at a position of engaging only the second inner gear ring 211. It can be understood that the limiting structure is to lock the position of the outer gear ring 231, and the switching shaft 23 keeps the outer gear ring 231 at a position of synchronously engaging the first inner gear ring 241 and the second inner gear ring 211 under the action of the spring 25, at this time, the U-shaped support 1 is in a fixed state and cannot swing, when the user pulls the operation end 232 to drive the whole switching shaft 23 to move and switch, the outer gear ring 231 is disengaged from the first inner gear ring 241 and only engages the second inner gear ring 211, at this time, the U-shaped support 1 is in a swingable state, the operation end 232 is rotatably connected to the end of the shaft body of the switching shaft 23, the first limiting boss 2321 can be abutted against the second limiting boss 221 by rotating the operation end 232, the user does not need to hold the switching shaft 23 all the time, and the swingable state of the U-shaped support 1 can be kept, so that the user can free his hands to operate the U-shaped support 1, and the operation convenience is improved. The second limiting boss 221 can be integrally formed on the cover plate 22, the first limiting boss 2321 can be integrally formed on the operation end 232, the operation end 232 and the shaft body of the switching shaft 23 can be rotatably connected in a nested mode, and the operation end 232 is arranged on the side facing the user.

[0034] Further, the second limiting boss 221 is arranged around the switching shaft 23 and forms a notch 222, and the first limiting boss 2321 can be pulled by the spring 25 and enter the notch 222 when the first limiting boss 2321 rotates to the notch 222, so that the outer gear ring 231 is kept in the position of synchronously engaging the first inner gear ring 241 and the second inner gear ring 211. It can be understood that the structure of the notch 222 is the key to realizing the automatic reset locking of the switching shaft 23 in cooperation with the spring 25. After the user completes the turnover of the support and adjusts to the target position, only needs to rotate the operation end 232 to make the first limiting boss 2321 align with the notch 222 of the second limiting boss 221, and the spring 25 will automatically pull the switching shaft 23 to reset, drive the first limiting boss 2321 into the notch 222, and the outer gear ring 231 is moved from the position of only engaging the second inner gear ring 211 to the position of synchronously engaging the first inner gear ring 241 and the second inner gear ring 211, to realize the quick fixing of the U-shaped support. This structure does not need the user to manually press the switching shaft 23 to reset, and the operation is more convenient. The notch 222 can position the first limiting boss 2321, ensure that the outer gear ring 231 can accurately engage with the two inner gear rings every time, avoid the situation that the support is not fixed due to the engagement deviation, and also can reduce the wear of the limiting boss and prolong the service life of the component. The cross section of the second limiting boss 221 can be C-shaped.

[0035] Optionally, the switching shaft 23 includes a limiting end 233 extending out of the connecting seat 24, and the limiting end 233 is used to prevent the switching shaft 23 from being separated from the connecting seat 24. It can be understood that the core function of the limiting end 233 is to limit the movement stroke of the switching shaft 23, so as to avoid that the user pulls the switching shaft 23 too hard and causes the switching shaft 23 to be separated from the connecting seat 24, the bottom shell 21 and the cover plate 22 as a whole, causing the adapter assembly 2 to be damaged and the support to be unable to be normally used. The limiting end 233 has a simple structure, which can be realized by setting a protrusion, a check ring or the like on the end of the switching shaft 23, does not affect the axial movement and rotation operation of the switching shaft 23, and does not interfere with the engagement of the outer gear ring 231 and the inner gear ring. The limiting end 233 can be threadedly connected with the switching shaft 23.

[0036] Optionally, the U-shaped support 1 is provided with a mounting groove 12 along the extension direction thereof, and the U-shaped support 1 is provided with first through holes 11 arranged in the thickness direction at intervals, and the mounting groove 12 is provided with a decorative band 13, and the decorative band 13 is provided with second through holes 131 corresponding to the first through holes 11. It can be understood that the mounting groove 12 provides a stable mounting position for the decorative band 13, so that the decorative band 13 can be closely attached to the surface of the U-shaped support 1, avoiding loosening and displacement of the decorative band 13, and at the same time, the mounting trace of the decorative band 13 can be hidden, and the overall appearance of the support is improved. The decorative band 13 not only beautifies the support, but also protects the surface of the U-shaped support 1, prevents it from being scratched and worn, and prolongs the service life of the support; and the corresponding arrangement of the first through holes 11 and the second through holes 131 does not affect the cooperation and assembly of the U-shaped support 1 and the positioning protruding column 213 of the adapter assembly 2, and can be used for fixing auxiliary components such as shading cloth and mobile phone support, so that the function of the support is more diversified. In addition, the decorative band 13 can be replaced flexibly according to the overall style of the massage chair, and is suitable for different styles of massage chairs, and improves the product versatility; the decorative band 13 can be made of acrylic material.

[0037] Further, the mounting groove 12 is further provided with a plurality of positioning protrusions 14 arranged at intervals, and the decorative band 13 is provided with positioning grooves 132 matched with the positioning protrusions 14. It can be understood that the cooperation of the positioning protrusions 14 and the positioning grooves 132 is to further improve the assembly firmness of the decorative band 13 and the U-shaped support 1, prevent the decorative band 13 from sliding and deviating during long-term use or support overturning, and ensure that the decorative band 13 always maintains a flat and attached state. The plurality of positioning protrusions 14 arranged at intervals can uniformly limit the decorative band 13, avoid local stress from causing the decorative band 13 to warp and deform, and only need to align the positioning grooves 132 with the positioning protrusions 14 for clamping and installation during assembly. The structure design is simple, the processing cost is low, and the stability and reliability of the decorative band 13 installation are effectively improved without increasing the assembly difficulty. The positioning grooves 132 can be U-shaped.

[0038] In the description of the present application, it should be understood that the orientation or positional relationship indicated by the terms "center", "longitudinal", "transverse", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise" and the like are based on the orientation or positional relationship shown in the drawings, and are only for the convenience of describing the present application and simplifying the description, and therefore cannot be understood as indicating or implying that the devices or elements referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore cannot be understood as limiting the present application.

[0039] In addition, the terms "first", "second", "third", etc. are used only for descriptive purposes and do not connote or imply any relative importance or a specific order of precedence. Thus, a feature described as "first" or "second" can include one or more of the features, either explicitly or implicitly described with reference to the same. In the description of the present application, the meaning of "a plurality" is two or more, unless explicitly specified otherwise.

[0040] In the present application, unless specifically defined otherwise, the terms "mounting", "connecting", "connecting", "fixing" and the like should be interpreted broadly, for example, it can be fixed connection, or detachable connection, or integrated; it can be mechanical connection, or electrical connection; it can be directly connected, or indirectly connected through intermediate media, or the internal communication of two elements or the interaction relationship between two elements. For those skilled in the art, the specific meaning of the above terms in the present application can be understood according to the specific circumstances.

[0041] In the present application, unless specifically defined otherwise, the "upper" or "lower" of the first feature to the second feature can include the direct contact of the first and second features, or the contact of the first and second features through another feature between them. Moreover, the "upper", "upper" and "upper" of the first feature to the second feature include the vertical direction of the first feature above and oblique above the second feature, or only indicate that the horizontal height of the first feature is higher than that of the second feature. The "lower", "lower" and "lower" of the first feature to the second feature include the vertical direction of the first feature below and oblique below the second feature, or only indicate that the horizontal height of the first feature is less than that of the second feature.

[0042] In the description of the present application, the description of the terms "one embodiment", "some embodiments", "example", "specific example" or "some examples" means that the specific features, structures, materials or characteristics described in conjunction with the embodiment or example are included in at least one embodiment or example of the present application. In the present application, the illustrative description of the above terms should not be understood as necessarily referring to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described can be combined in any one or more embodiments or examples in a suitable manner. In addition, those skilled in the art can combine and combine different embodiments or examples described in the present application.

[0043] Although the embodiments of the present application have been shown and described above, it can be understood that the above embodiments are exemplary and cannot be understood as limiting the present application, and those skilled in the art can change, modify, replace and modify the above embodiments within the scope of the present application.

Claims

1. A massage chair bracket, characterized by: The U-shaped support and the adapter assembly are provided; The U-shaped support is rotatably connected to the inner side of the two side frames of the massage chair body through the adapter assembly, the U-shaped support is provided with a first through hole, the adapter assembly comprises a bottom shell, a cover plate, a switching shaft and a connecting seat, the connecting seat is connected to the massage chair body and is rotatably connected to the bottom shell, the connecting seat is provided with a first inner gear ring, the bottom shell is provided with a second inner gear ring coaxial with the first inner gear ring, and a containing groove containing the end of the U-shaped support is provided on the bottom shell, the side end and the top end of the containing groove are open, the containing groove is provided with a positioning convex column matched with the first through hole, the switching shaft is provided with an outer gear ring matched with the first inner gear ring and the second inner gear ring, and the switching shaft is movably arranged in the bottom shell, the cover plate and the connecting seat, so that the outer gear ring is switched between the positions of synchronously engaging the first inner gear ring and the second inner gear ring or only engaging the second inner gear ring, and the cover plate covers the bottom shell and covers the open side end of the containing groove.

2. The massage chair support of claim 1, wherein, The adapter assembly further comprises a spring, the spring is sleeved on the switching shaft, and the two ends of the spring are connected to the connecting seat and the switching shaft respectively, so that the outer gear ring has a restoring force for moving towards the position of synchronously engaging the first inner gear ring and the second inner gear ring.

3. The massage chair support of claim 2, wherein, The switching shaft comprises an operating end extending out of the cover plate, the operating end is rotatably arranged relative to the shaft body of the switching shaft, the operating end is provided with a first limiting convex platform extending radially towards the switching shaft, the outer side of the cover plate is provided with a second limiting convex platform, and when the operating end is pulled out, the first limiting convex platform is abutted on the second limiting convex platform by rotating, so that the outer gear ring is kept at the position of only engaging the second inner gear ring.

4. The massage chair support of claim 3, wherein, The second limiting convex platform is arranged around the switching shaft and forms a notch, and when the first limiting convex platform is rotated to the notch, it can be pulled by the spring and enter the notch, so that the outer gear ring is kept at the position of synchronously engaging the first inner gear ring and the second inner gear ring.

5. The massage chair support of claim 1, wherein, The switching shaft comprises a limiting end extending out of the outer side of the connecting seat, and the limiting end is used for preventing the switching shaft from being separated from the connecting seat.

6. The massage chair support of claim 1, wherein, The U-shaped support is provided with a mounting groove along its extension direction, and the first through hole is arranged in the thickness direction of the U-shaped support, a decorative band is mounted in the mounting groove, and the decorative band is provided with a second through hole corresponding to the first through hole.

7. The massage chair support of claim 6, wherein, The mounting groove is further provided with a plurality of spaced positioning protrusions, and the decorative band is provided with a positioning groove matched with the positioning protrusions.

Images