CN220327656U - Clamping mechanism, massage instrument clamping arm and neck massage instrument - Google Patents

Abstract

The utility model discloses a clamping mechanism, a clamping arm of a massager and a neck massager, wherein a clamping arm fixing part is used for being connected with a clamping arm main body, the clamping arm clamping part can rotate relative to the clamping arm fixing part, a circle of locking grooves are formed in a shell of the clamping arm clamping part, a locking convex part is arranged on a locking piece of the clamping arm clamping part, the rotation of the shell is locked through the matching of the locking convex part and the locking grooves, a marble and a spring are not needed, the required parts are few, the assembly mode is simple, and the cost is saved. When the user rotates the casing, the locking convex part keeps motionless in the circumferencial direction, and the locking groove can be with locking convex part quick separation, breaks away from fastly, has promoted user's use experience.

Description

Clamping mechanism, massage instrument clamping arm and neck massage instrument

Technical Field

The utility model relates to the technical field of massage devices, in particular to a clamping mechanism, a massage device clamping arm and a neck massage device.

Background

The neck massage device generally comprises a wearing body, a movement and a clamping arm, wherein the inner side of the clamping arm is provided with a cotton ball clamping part. The cotton ball clamping part comprises a shell, the shell is sleeved on the mounting shaft of the clamping arm, and the shell is pressed on the mounting shaft through a pressing block. In order to realize the rotation and the limit of the cotton ball clamping part, a ball is generally arranged on the pressing block, the ball is connected through a spring, and a plurality of positioning holes are formed in the mounting part of the shell. When the marble rotates to a position of a locating hole along with the shell, the marble is clamped into the locating hole to lock the shell.

The existing solutions have the following drawbacks:

first, the parts that adopt are many, and the assembly is complicated, and is with high costs.

And the spring is connected with the pressing block, the spring is in flexible connection with the pressing block, the spring is reacted by the marble when the shell rotates, the spring has a deformation and stretching action, the marble leaves the positioning hole slowly, and the user experience is poor.

Thirdly, when the shell is rotated, the spring is subjected to torsion in the circumferential direction, and the spring is required to be stretched and contracted once when the marble passes through one positioning hole and is twisted once, so that the spring is easy to damage.

Disclosure of Invention

The utility model aims to overcome the defects of the prior art, and provides a clamping mechanism, a massage instrument clamp arm and a neck massage instrument, wherein a circle of locking grooves are formed in a shell, locking convex parts are directly arranged on a locking piece, the shell is locked through the matching of the locking convex parts and the locking grooves, the required parts are few, the assembly mode is simple, and the cost is saved. When the user rotates the casing, the locking convex part keeps motionless in the circumferencial direction, and the locking groove can be with locking convex part quick separation, breaks away from fastly, has promoted user's use experience.

The technical scheme of the utility model provides a clamping mechanism which comprises a clamping arm fixing part and a clamping arm clamping part which is pivotally assembled with the clamping arm fixing part;

the clamping arm clamping part comprises a shell with an assembly hole, a flexible piece connected with the shell and a locking piece connected with the clamping arm fixing part;

the shell is pivotally connected with the clamping arm fixing part;

wherein, the side of the shell facing the locking piece is provided with a plurality of locking grooves which are annularly arranged;

a locking protrusion for being matched with the locking groove is arranged on one side of the locking piece facing the shell;

when the locking convex part is in a matched state with any one of the locking grooves, the clamping arm clamping part is in a rotation locking state.

In one optional technical scheme, the locking piece comprises a locking piece main body and an elastic arm connected with the locking piece main body;

the locking piece main body is connected with the clamping arm fixing part;

the locking protrusion is provided on a side of the elastic arm facing the housing.

In one alternative, a guide structure for guiding the rotation of the housing is connected between the housing and the locking member.

In one optional technical scheme, the guide structure comprises a guide groove and a guide convex rail matched with the guide groove;

the guide groove is arranged on one side of the shell facing the locking piece, and the guide convex rail is arranged on one side of the locking piece facing the shell; or the guide convex rail is arranged on one side of the shell facing the locking piece, and the guide groove is arranged on one side of the locking piece facing the shell.

In one alternative, the guide rail and/or the guide groove is annular.

In one optional technical scheme, a locking piece through hole is formed in the locking piece, a hole wall extension part extending towards the middle of the locking piece through hole is formed in the hole wall of the locking piece through hole, and the thickness of the hole wall extension part is larger than that of the locking piece;

the hole wall extension part penetrates through the assembly hole and is connected with the clamping arm fixing part;

the hole wall of the assembly hole is pivotally assembled between the locking piece and the clamping arm fixing part.

In one optional technical scheme, the clamping arm fixing part comprises a fixing part main body and a connecting shaft connected with the fixing part main body;

the connecting shaft penetrates through the assembly hole, and the locking piece is connected to one end of the connecting shaft;

the hole wall of the assembly hole is pivotally assembled between the locking piece and the end surface of the fixing part main body;

the hole wall of the assembly hole is provided with a hole wall convex part protruding towards the middle part of the assembly hole, and the circumferential surface of the connecting shaft is provided with a connecting shaft convex part for stopping the hole wall convex part.

In one optional technical scheme, the end part of the clamping arm fixing part is provided with more than two tubular columns at intervals, and correspondingly, the locking piece is provided with more than two mounting holes;

the mounting holes are in one-to-one correspondence with the tubular columns and are connected through connecting pieces.

In one optional technical scheme, one side of the locking piece facing the pipe column is correspondingly provided with more than two guide limiting blocks, and the guide limiting blocks are arc-shaped;

the guide limiting blocks are matched with the pipe columns in a one-to-one correspondence mode, and each pipe column is located at the inner side of one guide limiting block.

In one optional technical scheme, the clamping arm clamping part further comprises a mounting box for mounting a battery or a counterweight, and the mounting box is detachably connected with the shell;

the mounting box is wrapped in the flexible piece.

In one optional technical scheme, a box opening of the mounting box faces the shell, and an extension plate extending towards the side of the shell is connected to the edge of the box opening.

In one alternative, at least one of the extension plates is connected with a stop plate for stopping the battery or the counterweight, and the stop plate extends toward the middle of the box opening.

In one optional technical scheme, a mounting plate is connected to the outer peripheral surface of the mounting box, and the mounting plate is connected with the shell through a clamping structure.

The embodiment of the utility model also provides a clamping arm of the massage device, which comprises a clamping arm main body and the clamping mechanism in any technical scheme, wherein the clamping arm fixing part is connected with the clamping arm main body.

The embodiment of the utility model also provides a neck massager, which comprises a massager body and the massager clamp arm according to the technical scheme, wherein the clamp arm body is connected with the massager body.

By adopting the technical scheme, the method has the following beneficial effects:

according to the clamping mechanism, the clamping arm of the massager and the neck massager, the clamping arm fixing part is used for being connected with the clamping arm main body, the clamping arm clamping part can rotate relative to the clamping arm fixing part, the shell of the clamping arm clamping part is provided with the circle of locking groove, the locking piece of the clamping arm clamping part is provided with the locking convex part, the shell is locked from rotating through the matching of the locking convex part and the locking groove, the marble and the spring are not needed, the required parts are few, the assembly mode is simple, and the cost is saved. When the user rotates the casing, the locking convex part keeps motionless in the circumferencial direction, and the locking groove can be with locking convex part quick separation, breaks away from fastly, has promoted user's use experience.

Drawings

The present disclosure will become more readily understood with reference to the accompanying drawings. It should be understood that: the drawings are for illustrative purposes only and are not intended to limit the scope of the present utility model. In the figure:

FIG. 1 is a perspective view of a clamping mechanism according to an embodiment of the present utility model;

FIG. 2 is an exploded view of a clamping mechanism according to an embodiment of the present utility model;

FIG. 3 is a cross-sectional view of a clamping mechanism according to an embodiment of the present utility model;

FIG. 4 is a perspective view of the clamp arm securing portion;

fig. 5 is a perspective view of the housing;

FIG. 6 is a perspective view of a locking element of one construction;

FIG. 7 is a front view of another construction of a latch;

FIG. 8 is a cross-sectional view taken along line A-A of FIG. 7;

fig. 9 is a perspective view of the mounting box;

FIG. 10 is a perspective view of a clip arm of a massage machine according to one embodiment of the present utility model;

FIG. 11 is a perspective view of the attachment of the arm lock securing portion to the arm lock body;

fig. 12 is a front view of a neck massager according to an embodiment of the present utility model.

Detailed Description

Specific embodiments of the present utility model will be further described below with reference to the accompanying drawings. Wherein like parts are designated by like reference numerals. It should be noted that the words "front", "rear", "left", "right", "upper" and "lower" used in the following description refer to directions in the drawings, and the words "inner" and "outer" refer to directions toward or away from, respectively, the geometric center of a particular component.

As shown in fig. 1 to 8, an embodiment of the present utility model provides a clamping mechanism, which includes a clamping arm fixing portion 1 and a clamping arm clamping portion 2 pivotally assembled with the clamping arm fixing portion 1.

The arm clamping portion 2 includes a housing 21 having an assembly hole 211, a flexible member 22 connected to the housing 21, and a locking member 23 connected to the arm fixing portion 1.

The housing 21 is pivotally connected to the arm fixing portion 1.

Wherein the side of the housing 21 facing the locking member 23 has a plurality of locking grooves 212 arranged in a ring shape.

The side of the locking piece 23 facing the housing 21 has a locking protrusion 233 for cooperation with the locking groove 212.

When the locking protrusion 233 is engaged with any one of the plurality of locking grooves 212, the arm clamping portion 2 is in a rotation locked state.

The clamping mechanism is used for the clamping arm of the massager, and is a part of the clamping arm of the massager.

The clamping mechanism comprises a clamping arm fixing part 1 and a clamping arm clamping part 2. The arm fixing part 1 may be a boss, a shaft, a sleeve, or the like. The arm fixing portion 1 is used for connecting with the arm body 3 shown in fig. 10 to 11, and the arm fixing portion 1 is connected to the inside of the arm body 3. The arm fixing part 1 can be connected with the arm main body 3 through a connecting mechanism, and the arm fixing part 1 can be integrally formed with the arm main body 3. The arm clamping part 2 is connected to one side of the arm fixing part 1 for clamping to the front side of the neck of the user.

The arm clamping portion 2 includes a housing 21, a flexible member 22, and a locking member 23. The housing 21 provides support for the flexible member 22. The mounting surface of the housing 21 has a fitting hole 211 to be pivotably connected with the arm fixing portion 1 or the locking piece 23. The housing 21 is rotatable relative to the arm fixing portion 1 and the lock member 23. The flexible member 22 is a cotton ball which is mounted on the housing 21, the flexible member 22 being adapted to contact the skin of the user to provide a comfortable feel. The locking piece 23 is connected to the arm fixing portion 1 and is used to lock the housing 21 for rotation.

In order to realize the locking function of the locking piece 23 on the shell 21, the following scheme is adopted in the utility model:

a plurality of locking grooves 212 are provided on a side of the housing 21 facing the locking piece 23, the plurality of locking grooves 212 being arranged in a ring shape, the plurality of locking grooves 212 being arranged around the fitting hole 211.

The locking piece 23 has a locking protrusion 233 on a side facing the housing 21, the locking protrusion 233 being adapted to cooperate with the locking groove 212 to lock the housing 21. The convex surface of the locking convex portion 233 is a curved surface, which is beneficial for the locking convex portion 233 to smoothly slide into the locking groove 212 and for the locking convex portion 233 to smoothly slide out of the locking groove 212.

When the locking protrusion 233 is engaged with any one of the locking grooves 212, the arm clamping portion 2 is in a rotation locked state. When the user holds the housing 21 to rotate the housing 21, the locking protrusion 233 slides out of the current locking groove 212 and slides into the next locking groove 212, and so on, until the user rotates the arm clamping part 2 to a proper position.

In summary, in the clamping mechanism provided by the utility model, the locking groove 212 is formed in the housing 21, the locking protrusion 233 is directly arranged on the locking member 23, and the rotation of the housing 21 is locked by the cooperation of the locking protrusion 233 and the locking groove 212, so that the marble and the spring are not required, the required parts are fewer, the assembly mode is simple, and the cost is saved. When the user rotates the housing 21, the locking protrusion 233 remains stationary in the circumferential direction, and the locking groove 212 can be rapidly separated from the locking protrusion 233, so that the separation speed is high, and the use experience of the user is improved.

In one embodiment, as shown in fig. 2 and 6-8, the latch 23 includes a latch body 231 and a resilient arm 232 coupled to the latch body 231. The latch body 231 is connected to the arm fixing part 1. The locking protrusion 233 is provided on a side of the elastic arm 232 facing the housing 21.

In this embodiment, the locking member 23 includes a locking member body 231 and a resilient arm 232. The elastic arm 232 is connected to one side of the latch body 231. The latch body 231 preferably adopts a circular structure. The elastic arm 232 is preferably a plastic arm or a plastic plate. The elastic arm 232 is preferably integrally formed with the latch body 231, and has high structural strength. The latch main body 231 is fixedly connected to the arm fixing portion 1, and the latch protrusion 233 is provided at one end of the elastic arm 232 on a side facing the housing 21. Since the locking protrusion 233 is disposed on the elastic arm 232, when the locking protrusion 233 slides into or out of the locking groove 212, the elastic arm 232 is deformed adaptively, which is beneficial for the locking protrusion 233 to slide into or out of the locking groove 212 smoothly.

In one of the embodiments, as shown in fig. 2, a guide structure 24 for guiding the rotation of the housing 21 is connected between the housing 21 and the locking piece 23.

In the present embodiment, a guide structure 24 is provided between the housing 21 and the lock piece 23 for guiding the rotation of the housing 21. The guide structure 24 may be a bearing structure, a rotating sleeve structure, a guide rail structure, a guide groove structure, or the like.

In one embodiment, as shown in fig. 2 and 5-6, the guide structure 24 includes a guide groove 241 and a guide rail 242 that mates with the guide groove 241.

Wherein the guide groove 241 is provided at a side of the housing 21 facing the locking piece 23, and the guide rail 242 is provided at a side of the locking piece 23 facing the housing 21. Alternatively, the guide rail 242 is provided at a side of the housing 21 facing the locking piece 23, and the guide groove 241 is provided at a side of the locking piece 23 facing the housing 21.

In the present embodiment, the guide structure 24 employs a combination of the guide groove 241 and the guide rail 242. The guide groove 241 may have an arc shape or an arc shape, the guide rail 242 may have an arc shape or an arc shape, and the guide rail 242 may rotate relative to the guide groove 241.

The guide groove 241 and the guide rail 242 have the following two mounting means:

the first installation mode is as follows: the guide groove 241 is opened at a side of the housing 21 facing the locking piece 23, and the guide rail 242 is provided at a side of the locking piece 23 facing the housing 21.

And the second installation mode is as follows: the guide rail 242 is provided at a side of the housing 21 facing the locking piece 23, and the guide groove 241 is provided at a side of the locking piece 23 facing the housing 21.

In one embodiment, as shown in fig. 5-6, the guide rail 242 and/or the guide groove 241 are annular.

In this embodiment, if the guide convex rail 242 adopts a circular ring shape, the guide groove 241 may adopt an arc shape or a circular ring shape, and if the guide groove 241 adopts a circular ring shape, the guide convex rail 242 may adopt an arc shape or a circular ring shape, which provides various schemes to meet different installation requirements.

In one embodiment, as shown in fig. 7-8, the locking member 23 is provided with a locking member through hole 234, and a hole wall extension 237 extending toward the middle of the locking member through hole 234 is provided on the hole wall of the locking member through hole 234, and the thickness of the hole wall extension 237 is greater than the thickness of the locking member 23.

The hole wall extension 237 passes through the fitting hole 211 and is connected to the arm fixing portion 1.

The hole wall of the fitting hole 211 is pivotably fitted between the lock piece 23 and the arm fixing portion 1.

In the present embodiment, the middle portion of the locking piece 23 has a locking piece through hole 234, and specifically, the locking piece through hole 234 is provided on the locking piece main body 231. The hole wall of the locker through-hole 234 is integrally provided with a hole wall extension 237, and the hole wall extension 237 extends toward the middle of the locker through-hole 234. The thickness of the hole wall extension 237 is greater than that of the locking piece 23, and the hole wall extension 237 protrudes toward one side of the housing 21.

The hole wall extension 237 contacts and connects with the arm fixing portion 1 so that a gap is formed between the locking piece 23 and the arm fixing portion 1 for the housing 21 to be assembled and rotated.

When installed, the bore wall extension 237 passes through the mounting bore 211. The hole wall of the fitting hole 211 is fitted between the lock piece 23 and the arm fixing portion 1, and the housing 21 is rotatable relative to the lock piece 23 and the arm fixing portion 1.

In one embodiment, as shown in fig. 3 to 6, the arm lock fixing part 1 includes a fixing part body 11 and a connecting shaft 12 connected to the fixing part body 11.

The connection shaft 12 passes through the fitting hole 211, and the locking member 23 is connected to one end of the connection shaft 12.

The hole wall of the fitting hole 211 is pivotably fitted between the lock piece 23 and the end face 111 of the fixed portion main body 11.

The hole wall of the fitting hole 211 has a hole wall protrusion 2111 protruding toward the middle of the fitting hole 211, and a connecting shaft protrusion 121 for stopping the hole wall protrusion 2111 is provided on the circumferential surface of the connecting shaft 12.

In the present embodiment, the arm lock fixing portion 1 includes a fixing portion main body 11 and a connecting shaft 12. The connection shaft 12 is connected to one side of the fixing portion body 11, and an end surface 111 of the fixing portion body 11 surrounds the connection shaft 12.

When assembled, the connecting shaft 12 passes through the fitting hole 211, and the locking piece 23 contacts and connects with the connecting shaft 12, so that a gap is formed between the locking piece 23 and the end face 111 for the housing 21 to be fitted and rotated. Specifically, the hole wall of the fitting hole 211 is fitted between the lock piece 23 and the end face 111 of the fixed portion main body 11, and the housing 21 is rotatable relative to the lock piece 23 and the arm fixing portion 1.

In order to limit the number of turns of the housing 21, a hole wall protrusion 2111 is provided on the hole wall of the fitting hole 211, the hole wall protrusion 2111 protruding toward the middle of the fitting hole 211; a coupling shaft protrusion 121 is provided on the circumferential surface of the coupling shaft 12, the coupling shaft protrusion 121 extending along a radial protrusion of the coupling shaft 12, the coupling shaft protrusion 121 serving to stop the hole wall protrusion 2111. When the housing 21 is rotated to a certain angle, the hole wall protrusions 2111 come into contact with the connection shaft protrusions 121 and are blocked by the connection shaft protrusions 121, so that the housing 21 cannot be rotated any more, so that the housing 21 can be rotated only by no more than one turn. The maximum angle at which the housing 21 can rotate is defined by parameters such as the size of the hole wall protrusion 2111 and the connecting shaft protrusion 121, and the central angle.

In one embodiment, as shown in fig. 4 and 6, the end of the arm fixing part 1 is provided with two or more pipe strings 13 at intervals, and correspondingly, the locking member 23 is provided with two or more mounting holes 235. The mounting holes 235 are in one-to-one correspondence with the pipe strings 13 and are connected by a connecting member.

In this embodiment, two or more pipe strings 13 are provided at the end of the arm fixing part 1, and the pipe strings 13 have connection holes to connect with the connection members. The locking piece 23 is correspondingly provided with more than two mounting holes 235, and each mounting hole 235 corresponds to one pipe column 13 and is connected through a connecting piece, so that the connection is stable, and the locking piece 23 can be prevented from rotating.

The connecting hole can be an internal threaded hole, and the connecting piece can be a screw.

In one embodiment, as shown in fig. 4 and 6, the side of the locking member 23 facing the pipe string 13 is correspondingly provided with more than two guiding stoppers 236, and the guiding stoppers 236 are arc-shaped.

The guide stoppers 236 are fitted to the pipe strings 13 one by one, and each pipe string 13 is located inside one guide stopper 236.

In this embodiment, a guide stopper 236 is disposed around each mounting hole 235, and the guide stopper 236 extends toward the pipe string 13. The guide stopper 236 is arc-shaped, preferably semi-circular, and has an inner diameter slightly larger than the outer diameter of the pipe string 13.

When assembled, the guide stop 236 is aligned with the pipe string 13 to quickly push the locking member 23 into position so that the mounting hole 235 is aligned with the pipe string 13. After the installation is completed, the pipe column 13 is positioned on the inner side of the guide limiting block 236 and also plays a limiting role.

In one embodiment, as shown in fig. 2-3, the clamping arm clamping portion 2 further includes a mounting box 25 for mounting a battery 26 or a counterweight, and the mounting box 25 is detachably connected with the housing 21. The mounting box 25 is encased in the flexible member 22.

In this embodiment, one side of the housing 21 is connected with a mounting box 25, and the mounting box 25 is used for mounting a battery 26 or a counterweight to increase the weight of the clamping arm clamping part 2, so that the center of gravity of the neck massager moves forward, and the clamping arm clamping part 2 is beneficial to being clamped at the front side of the neck of a user.

The mounting box 25 is connected with the shell 21 by a buckle, a pin and the like, so that the mounting box is convenient to assemble and disassemble.

In one of the embodiments, as shown in fig. 9, the cartridge opening of the mounting cartridge 25 is directed toward the housing 21, and an extension plate 251 extending toward the side of the housing 21 is attached to the edge of the cartridge opening.

In this embodiment, the extension board 251 is disposed at the opening of the mounting box 25 to match the thickness of the battery 26 or the configuration object, so as to reduce the groove depth of the mounting box 25, reduce the depth of the mounting box 25 extending into the flexible member 22, and avoid generating diaphragmatic response to the human body.

In one embodiment, as shown in fig. 9, at least one extension plate 251 is connected with a stop plate 252 for stopping the battery 26 or the weight, and the stop plate 252 extends toward the middle of the case mouth to restrict the battery 26 or the weight in the mounting case 25 by the stop plate 252, thereby improving the mounting stability of the battery 26 or the weight.

The two mounting boxes 25 in the clamping arm clamping parts 2 at the two sides of the neck massage instrument can be used for simultaneously mounting the batteries 26, so that the mounting positions of the batteries 26 are provided, and the quality of the two sides is basically consistent. Of course, it is also possible to mount the battery 26 in one mounting case 25 and mount a weight in the other mounting case 25, the weight being substantially equal to the mass of the battery 26.

In one embodiment, as shown in fig. 5 and 9, a mounting plate 253 is connected to the outer peripheral surface of the mounting box 25, and the mounting plate 253 is connected to the housing 21 by a fastening structure, so that the mounting box is convenient to assemble and disassemble.

Specifically, the housing 21 is provided with a plurality of snap fasteners 213 and a plurality of positioning posts 214 at intervals, and the mounting plate 253 is provided with a plurality of snap holes 2531 and a plurality of positioning holes 2532 at intervals. The buckle 213 is clamped with the clamping hole 2531, and the positioning column 214 is inserted into the positioning hole 2532.

In assembly, the positioning posts 214 are engaged with the positioning holes 2532 to provide a pre-positioning function, and then the housing 21 or the mounting plate 253 is continuously pressed, so that the fasteners 213 are clamped into the clamping holes 2531.

As shown in fig. 10-11, a clamping arm of a massage apparatus according to an embodiment of the present utility model includes a clamping arm body 3 and the clamping mechanism according to any of the foregoing embodiments, where the clamping arm fixing portion 1 is connected to the clamping arm body 3.

The massage device clamp arm provided by the utility model comprises the clamp arm main body 3 and the clamping mechanism. For the structure, construction and working principle of the clamping mechanism, please refer to the description of the clamping mechanism, and the description is omitted herein.

The arm fixing part 1 is connected to the inner side of the arm body 3, the arm fixing part 1 can be connected with the arm body 3 through a connecting mechanism, and the arm fixing part 1 can be integrally formed with the arm body 3.

As shown in fig. 12, a neck massager according to an embodiment of the present utility model includes a massager body 4 and the massager arm described in the foregoing embodiments, where the arm body 3 is connected to the massager body 4.

The neck massager provided by the utility model comprises a massager body 4 and two massager clamping arms. The massage apparatus main body 4 includes a wearing main body, a movement, a massage head, and the like. The arm body 3 of each massage device arm is connected with the wearing body of the massage device body 4.

The above technical schemes can be combined according to the need to achieve the best technical effect.

The foregoing is only illustrative of the principles and preferred embodiments of the present utility model. It should be noted that several other variants are possible to those skilled in the art on the basis of the principle of the utility model and should also be considered as the scope of protection of the present utility model.

Claims (15)

1. A clamping mechanism, characterized by comprising a clamping arm fixing part (1) and a clamping arm clamping part (2) which is pivotally assembled with the clamping arm fixing part (1);

the clamping arm clamping part (2) comprises a shell (21) with an assembly hole (211), a flexible piece (22) connected with the shell (21) and a locking piece (23) connected with the clamping arm fixing part (1);

the shell (21) is pivotally connected with the clamping arm fixing part (1);

wherein, a side of the shell (21) facing the locking piece (23) is provided with a plurality of locking grooves (212) which are annularly arranged;

the side of the locking piece (23) facing the shell (21) is provided with a locking convex part (233) for being matched with the locking groove (212);

when the locking convex part (233) is in a matched state with any one of the locking grooves (212), the clamping arm clamping part (2) is in a rotation locking state.

2. Clamping mechanism according to claim 1, characterized in that the locking element (23) comprises a locking element body (231) and a resilient arm (232) connected to the locking element body (231);

the locking piece main body (231) is connected with the clamping arm fixing part (1);

the locking protrusion (233) is provided on a side of the elastic arm (232) facing the housing (21).

3. Clamping mechanism according to claim 1 or 2, characterized in that a guiding structure (24) for guiding the rotation of the housing (21) is connected between the housing (21) and the locking member (23).

4. A clamping mechanism according to claim 3, characterized in that the guiding structure (24) comprises a guiding groove (241) and a guiding rail (242) cooperating with the guiding groove (241);

wherein the guide groove (241) is arranged on one side of the shell (21) facing the locking piece (23), and the guide convex rail (242) is arranged on one side of the locking piece (23) facing the shell (21); alternatively, the guide convex rail (242) is arranged on one side of the shell (21) facing the locking piece (23), and the guide groove (241) is arranged on one side of the locking piece (23) facing the shell (21).

5. Clamping mechanism according to claim 4, characterized in that the guide rail (242) and/or the guide groove (241) are ring-shaped.

6. Clamping mechanism according to claim 1 or 2, wherein the locking member (23) is provided with a locking member through hole (234), the wall of the locking member through hole (234) is provided with a wall extension (237) extending towards the middle of the locking member through hole (234), and the thickness of the wall extension (237) is larger than the thickness of the locking member (23);

the hole wall extension part (237) passes through the assembly hole (211) and is connected with the clamping arm fixing part (1);

a hole wall of the fitting hole (211) is pivotably fitted between the lock member (23) and the arm fixing portion (1).

7. Clamping mechanism according to claim 1 or 2, characterized in that the clamping arm fixing part (1) comprises a fixing part body (11) and a connecting shaft (12) connected with the fixing part body (11);

the connecting shaft (12) passes through the assembly hole (211), and the locking piece (23) is connected to one end of the connecting shaft (12);

the hole wall of the assembly hole (211) is pivotally assembled between the locking piece (23) and the end surface (111) of the fixed part main body (11);

the hole wall of the assembly hole (211) is provided with a hole wall protrusion (2111) protruding towards the middle part of the assembly hole (211), and the circumferential surface of the connecting shaft (12) is provided with a connecting shaft protrusion (121) for stopping the hole wall protrusion (2111).

8. Clamping mechanism according to claim 1 or 2, characterized in that the ends of the clamping arm fixing part (1) are provided with more than two tubular columns (13) at intervals, and correspondingly, the locking piece (23) is provided with more than two mounting holes (235);

the mounting holes (235) are in one-to-one correspondence with the tubular columns (13) and are connected through connecting pieces.

9. Clamping mechanism according to claim 8, characterized in that the side of the locking element (23) facing the pipe string (13) is provided with correspondingly more than two guiding stoppers (236), the guiding stoppers (236) being arc-shaped;

the guide limiting blocks (236) are matched with the pipe columns (13) in a one-to-one correspondence mode, and each pipe column (13) is located on the inner side of one guide limiting block (236).

10. Clamping mechanism according to claim 1 or 2, characterized in that the clamping arm clamping part (2) further comprises a mounting box (25) for mounting a battery (26) or a counterweight, the mounting box (25) being detachably connected with the housing (21);

the mounting box (25) is wrapped in the flexible piece (22).

11. Clamping mechanism according to claim 10, characterized in that the cartridge opening of the mounting cartridge (25) is directed towards the housing (21), the edge of the cartridge opening being connected with an extension plate (251) extending towards the side of the housing (21).

12. Clamping mechanism according to claim 11, wherein at least one of the extension plates (251) is connected with a stop plate (252) for stopping the battery (26) or the counterweight, the stop plate (252) extending towards the middle of the cassette mouth.

13. The clamping mechanism according to claim 10, wherein a mounting plate (253) is connected to an outer peripheral surface of the mounting box (25), and the mounting plate (253) is connected to the housing (21) through a clamping structure.

14. A massage apparatus arm, characterized by comprising an arm body (3) and a clamping mechanism according to any one of claims 1-13, the arm fixing part (1) being connected with the arm body (3).

15. A neck massager, characterized by comprising a massager body (4) and a massager clamp arm according to claim 14, the clamp arm body (3) being connected with the massager body (4).