Hip and shank twisting unit

Abstract

The invention discloses a crotch twisting shank unit which comprises a connecting support, a shank support installed on the connecting support and a first shank supporting piece installed on the shank support, a second shank supporting piece is further arranged on the shank support, and the first shank supporting piece and the second shank supporting piece are located on the front face and the back face of the shank support respectively. A connecting shaft is arranged on the connecting support, the axial direction of the connecting shaft corresponds to the length direction of the shank, and the shank support is installed on the connecting shaft and rotates with the connecting shaft as a rotating shaft. The shank support is further provided with a swing assembly, and the swing assembly is used for driving the shank support to swing on the connecting shaft in a reciprocating mode. According to the scheme, whether the shank unit is massaged or not can be switched, the function of swinging and twisting the crotch can be provided, the massage experience is improved, and the crowd adaptability is improved.

Description

Technical Field

[0001] The invention relates to a massage device, in particular to a hip-twisting calf unit. Background Art

[0002] Massage chairs are important massage devices that can provide relaxation massage to the whole body. Currently, massage of the calf is limited to air bag massage.

[0003] Referring to the prior art, a Chinese utility model patent for a leg massager (CN221731498U) discloses a leg massager, comprising a leg massage piece and a foot massage piece installed below the leg massage piece, the leg massage piece having two placement grooves arranged on the left and right for placing human legs, the foot massage piece having a receiving groove connected to the placement groove and for placing human feet; a massage airbag for massaging human acupoints is arranged on the inner wall of the placement groove, and an adjusting airbag for pushing the human leg so that the human acupoints and the massage airbag form a close pressure contact, so that the massage airbag can fully contact and massage the human acupoints.

[0004] Obviously, this solution realizes calf compression by inflating and deflating the airbag, which is relatively simple in function and cannot meet more demands. The massage experience is still not perfect. Moreover, if some people do not like calf compression, including those with wounds on the calf, they will feel uncomfortable during calf massage. Summary of the invention

[0005] In view of the deficiencies in the prior art, the purpose of the present invention is to provide a hip-twisting calf unit, which can provide a switch between massaging the calf unit and not massaging it, and can also provide a swinging and hip-twisting function to increase the massage experience and adaptability to a wider range of people.

[0006] To achieve the above-mentioned purpose, the present invention provides the following technical solutions: a hip-twisting calf unit, comprising a connecting bracket, a calf bracket installed on the connecting bracket, a first calf support member installed on the calf bracket, the calf bracket is also provided with a second calf support member, the first calf support member and the second calf support member are respectively located on the front and back of the calf bracket; a connecting shaft is provided on the connecting bracket, the axial direction of the connecting shaft corresponds to the length direction of the calf, the calf bracket is installed on the connecting shaft and rotates with the connecting shaft as the rotating shaft; a swinging assembly is also provided on the calf bracket, and the swinging assembly is used to drive the calf bracket to swing back and forth on the connecting shaft.

[0007] As a further improvement of the present invention,

[0008] The first calf support has a first groove for placing the calf, and a massage airbag is arranged in the first groove, and the massage airbag performs a massage action by inflating and deflating air; and / or

[0009] The second calf support has a resting platform for resting the calf.

[0010] As a further improvement of the present invention, the connecting bracket is provided with a limiting component for limiting the rotation of the calf bracket in a first state or a second state; the first state and the second state are respectively the state where the first calf support member is facing upward and the second calf support member is facing upward.

[0011] As a further improvement of the present invention, the limiting assembly includes two limiting steps arranged on the side of the connecting shaft and a limiting protrusion arranged on the connecting bracket. The limiting protrusion cooperates with the two limiting steps respectively, and when the connecting shaft and the calf bracket rotate, the connecting shaft is limited in the first state or the second state.

[0012] As a further improvement of the present invention, the connecting shaft is a hollow structure, and a connecting nut is arranged at a position corresponding to the connecting shaft on the connecting bracket. A through hole connected to the connecting shaft is arranged axially on the connecting nut, and the through hole cooperates with the hollow structure of the connecting shaft to transmit gas.

[0013] As a further improvement of the present invention, the swing assembly includes a driver, an eccentric connector, a connecting seat, and a swing arm; the driver is installed on the connecting seat, and the connecting seat is connected to the connecting shaft; the eccentric connector is installed on the output shaft of the driver, the eccentric connector is connected to the swing arm, and the swing arm is rotatably connected to the calf support; the driver drives the eccentric connector to rotate eccentrically, and drives the calf support to swing back and forth on the connecting shaft through the swing arm; the eccentric connector is disc-shaped.

[0014] As a further improvement of the present invention, the calf support is provided with a connecting rod for cooperating with the swing arm for rotational connection; a strip hole is provided at the position where the swing arm and the connecting rod are connected, and the connecting rod is located in the strip hole, the swing arm swings with the calf support through an eccentric connecting piece, and the connecting rod moves in the strip hole.

[0015] As a further improvement of the present invention, the swing arm includes a connecting part, a first connecting arm and a second connecting arm both fixed on the connecting part, the connecting part is used to cooperate with the eccentric connecting piece for connection, the first connecting arm and the second connecting arm are respectively located on both sides of the connecting part, and correspond to the two sides or close to the two sides of the calf support; the positions corresponding to the first connecting arm and the second connecting arm on the calf support are provided with connecting rods, the positions of the first connecting arm and the corresponding connecting rod are provided with connecting holes, and the shape of the connecting hole is adapted to the connecting rod; the strip hole is located on the second connecting arm, and the second connecting arm is connected to the corresponding connecting rod through the strip hole; the disc-shaped eccentric connecting piece is rotatably connected to the connecting part.

[0016] As a further improvement of the present invention, a mounting groove having a shape matching that of the eccentric connecting member is provided on the connecting portion, and the eccentric connecting member is located in the mounting groove and can rotate relative to an inner wall of the mounting groove.

[0017] As a further improvement of the present invention, a second groove is provided at a position of the connecting seat corresponding to the connecting shaft, and the second groove is adapted to the connecting shaft so as to allow the connecting shaft to enter and abut against the second groove.

[0018] The beneficial effect of the present invention is that the calf support can be switched between the front and back sides to meet the needs of different people and different massage experiences. It can also be coordinated to use the swing component to drive the calf support to swing back and forth, so that the user can twist the hips and stretch the muscles, especially when the calf support has an air bag that can clamp the calf, the twisting hip and stretching effect is more obvious. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 It is a schematic diagram of the first calf support member of the present invention facing upward;

[0020] Figure 2 It is a schematic diagram of the second calf support member of the present invention facing upward;

[0021] Figure 3 It is a schematic structural diagram of a first calf support member of the present invention;

[0022] Figure 4 It is a schematic diagram of the three-dimensional structure of the calf support of the present invention;

[0023] Figure 5 It is a schematic diagram of the local structure of the connecting shaft of the present invention;

[0024] Figure 6 It is a schematic diagram of the overall structure of the connecting bracket of the present invention;

[0025] Figure 7 It is a schematic diagram of the three-dimensional structure of the back of the calf support of the present invention;

[0026] Figure 8 for Figure 4 A magnified view of part A in FIG.

[0027] Fig. 9 for Figure 7 A magnified view of part B in FIG.

[0028] Fig.10 for Figure 7 Enlarged view of part C in .

[0029] Figure numbers: 1. connecting bracket; 11. connecting shaft; 12. connecting nut; 2. calf bracket; 21. connecting rod; 3. first calf support; 31. first groove; 4. second calf support; 41. shelf platform; 5. swing assembly; 51. driver; 52. eccentric connector; 53. connecting seat; 531. second groove; 54. swing arm; 541. connecting part; 5411. mounting groove; 542. first connecting arm; 543. second connecting arm; 544. strip hole; 61. limiting step; 62. limiting protrusion. DETAILED DESCRIPTION

[0030] The present invention will be further described below in detail with reference to the embodiments shown in the accompanying drawings.

[0031] Reference Figure 1-10 As shown,

[0032] A hip-twisting calf unit comprises a connecting bracket 1, a calf bracket 2 mounted on the connecting bracket 1, a first calf support 3 mounted on the calf bracket 2, a second calf support 4 is also provided on the calf bracket 2, the first calf support 3 and the second calf support 4 are respectively located on the front and back of the calf bracket 2; a connecting shaft 11 is provided on the connecting bracket 1, the axial direction of the connecting shaft 11 corresponds to the length direction of the calf, the calf bracket 2 is mounted on the connecting shaft 11 and rotates with the connecting shaft 11 as the rotating shaft; a swinging assembly 5 is also provided on the calf bracket 2, and the swinging assembly 5 is used to drive the calf bracket 2 to swing back and forth on the connecting shaft 11.

[0033] In the present solution, the front and back sides of the calf support 2 are provided with calf support parts, which can be set according to the needs, and can provide users with more calf placement requirements. For example, users who do not need calf massage or whose calf is not convenient to be massaged can make adjustments. With the cooperation of the connecting shaft 11, the calf support 2 can be flipped through the connecting shaft 11, so that it can be switched between the front and back sides, thereby adapting to the needs of different groups of people and different massage experiences.

[0034] The connecting bracket 1 is used for connection with an external main body, such as the seat body of a massage chair. The connecting bracket 1 is installed on the seat body so that it can be flipped up and down, and the position of the entire calf unit can be adjusted by flipping up and down.

[0035] The swing assembly 5 on the calf support 2 is used to cooperate with the calf support 2 to swing on the connecting shaft 11, and the swing is used to produce a hip-twisting and muscle-stretching effect, thereby improving the massage experience.

[0036] In a preferred arrangement, the first calf support member 3 has a first groove 31 for placing the calf, and a massage airbag is arranged in the first groove 31, and the massage airbag performs a massage action by inflating and deflating air; and / or

[0037] The second calf support 4 has a resting platform 41 for resting the calf.

[0038] The first groove 31 on the first calf support 3 can be used to place the calf, and cooperate with the massage airbag to produce a massage effect. At the same time, the massage airbag can press the calf and cooperate with the swing component 5 to produce a swing effect, which can make the calf better produce the hip twisting and muscle stretching effect, and the swing of the calf support 2 will not be unable to twist the hip and stretch the muscles because the calf is in a free state. The second calf support 4 is only a resting platform 41 for placing the calf. The platform will not produce the airbag pressing effect on the calf. The calf is in a relatively free state. When the calf support 2 swings, the position of the calf will not produce the compression, hip twisting and muscle stretching effect. It is suitable for some people who cannot twist the hip and stretch the muscles, and is also suitable for people who cannot massage the calf.

[0039] The first calf support member 3 mentioned above can be a U-shaped shell as shown in the figure, with two first grooves 31 for placing the calf.

[0040] In order to make the connecting bracket 1 more convenient to use, in one of the feasible schemes, a limiting component is provided on the connecting bracket 1 for limiting the rotation of the calf bracket 2 in the first state or the second state; the first state and the second state are respectively the state in which the first calf support member 3 is facing upward and the second calf support member 4 is facing upward.

[0041] The limit assembly is used to limit the rotation position of the calf support 2, so that the user can quickly rotate the calf support 2 to the correct position.

[0042] Specifically, the limiting assembly includes two limiting steps 61 arranged on the side of the connecting shaft 11 and a limiting protrusion 62 arranged on the connecting bracket 1. The limiting protrusion 62 cooperates with the two limiting steps 61 respectively, and when the connecting shaft 11 and the calf bracket 2 rotate, the connecting shaft 11 is limited in the first state or the second state.

[0043] The two limiting steps 61 cooperate with the limiting protrusion 62, and the calf support 2 is fixed on the connecting shaft 11. During the rotation of the connecting shaft 11, it can rotate along with the rotation of the calf support 2. When the limiting step 61 abuts against the limiting protrusion 62, the connecting shaft 11 and the calf support 2 are restricted from rotating. At this time, the calf support 2 can also be restricted in the first state or the second state. The structure is simple, easy to process, and the cooperation is stable.

[0044] The connecting shaft 11 is a hollow structure, and a connecting nut 12 is provided at a position corresponding to the connecting shaft 11 on the connecting bracket 1. A through hole communicating with the connecting shaft 11 is provided in the axial direction of the connecting nut 12, and the through hole cooperates with the hollow structure of the connecting shaft 11 to transmit gas. The connecting nut 12 is used to rotatably mount the connecting shaft 11 on the connecting bracket 1, for example, the connecting nut 12 is threadedly connected to the inner wall of the connecting shaft 11, or the connecting nut 12 is threadedly connected to the outer wall of the connecting shaft 11, and the connecting nut 12 can be used as a limiter to limit the connecting shaft 11 from being separated from the connecting bracket 1.

[0045] In order to facilitate the inflation and deflation of the airbag on the first calf support 3, and at the same time reduce the impact of the rotation of the calf support 2 on the gas pipeline, the connecting shaft 11 is a hollow structure, and a connecting nut 12 is provided at a position corresponding to the connecting shaft 11 on the connecting bracket 1. The connecting nut 12 is axially provided with a through hole connected to the connecting shaft 11, and the through hole cooperates with the hollow structure of the connecting shaft 11 to transmit gas.

[0046] The hollow structure in the connecting shaft 11 can better protect the gas pipeline and can also reduce the impact on the gas pipeline when the connecting bracket 1 and the rotating shaft rotate.

[0047] Specifically, the swing assembly 5 includes a driver 51, an eccentric connector 52, a connecting seat 53, and a swing arm 54; the driver 51 is installed on the connecting seat 53, and the connecting seat 53 is connected to the connecting shaft 11; the eccentric connector 52 is installed on the output shaft of the driver 51, the eccentric connector 52 is connected to the swing arm 54, and the swing arm 54 is rotatably connected to the calf support 2; the driver 51 drives the eccentric connector 52 to rotate eccentrically, and drives the calf support 2 to swing back and forth on the connecting shaft 11 through the swing arm 54; the eccentric connector 52 is disc-shaped.

[0048] The disc-shaped eccentric connector 52 can use its side to abut against the swing arm 54 when rotating. Under the action of the eccentric rotation of the eccentric connector 52, the swing arm 54 produces a reciprocating swinging motion, thereby causing the calf support 2 to also produce a reciprocating swinging motion. The driver 51 can be equipped with a motor and a gear box, and the output shaft of the gear box is used to connect with the eccentric connector 52 to provide sufficient torque. The structure is simple and the cost is low. The connecting seat 53 can increase the stability of the driver 51. With this simple structure, the calf support 2 can be swung to produce the effect of twisting the hips and stretching the muscles.

[0049] In a further configuration, in order to make the swinging effect more stable, a connecting rod 21 is provided on the calf support 2 for cooperating with the swing arm 54 for rotational connection; a strip hole 544 is provided at the position where the swing arm 54 is connected to the connecting rod 21, and the connecting rod 21 is located in the strip hole 544, and the swing arm 54 swings with the calf support 2 through the eccentric connecting piece 52, and the connecting rod 21 is located in the strip hole 544 for movement.

[0050] The connecting rod 21 can be installed on the calf support 2 using two connecting parts 541. The connecting rod 21 can be installed with the swing arm 54 in advance during production, and then the two connecting parts 541 can be installed with the calf support 2, which can achieve quick installation.

[0051] The calf support 2 mentioned in this solution is provided with a connecting rod 21, which does not limit the connecting rod 21 to be installed with the calf support 2 first and the swing arm 54 to be installed with the connecting rod 21, nor does it mean that the connecting rod 21 and the calf support 2 are an integrated structure.

[0052] When the swing arm 54 swings through the eccentric connecting piece 52, a certain displacement will be generated in the length direction relative to the swing arm 54. The setting of the strip hole 544 can provide a certain activity space for the connecting rod 21 when the swing arm 54 swings, thereby overcoming the displacement problem of the swing arm 54 and making the swinging action smoother.

[0053] In a further configuration, the swing arm 54 includes a connecting portion 541, a first connecting arm 542 and a second connecting arm 543 both fixed on the connecting portion 541, the connecting portion 541 is used to cooperate with the eccentric connecting member 52 for connection, the first connecting arm 542 and the second connecting arm 543 are respectively located on both sides of the connecting portion 541, and correspond to the two sides or close to the two sides of the calf support 2; the positions corresponding to the first connecting arm 542 and the second connecting arm 543 on the calf support 2 are both provided with connecting rods 21, the first connecting arm 542 and the corresponding positions of the connecting rod 21 are provided with connecting holes, and the shape of the connecting holes is adapted to the connecting rod 21; the strip hole 544 is located on the second connecting arm 543, and the second connecting arm 543 is connected to the corresponding connecting rod 21 through the strip hole 544; the disc-shaped eccentric connecting member 52 is rotatably connected to the connecting portion 541.

[0054] In order to make the swing of the calf support 2 more stable, in an optional embodiment, the swing arm 54 includes a connecting part 541, a first connecting arm 542 and a second connecting arm 543 both fixed on the connecting part 541, the connecting part 541 is used to cooperate with the eccentric connecting piece 52 for connection, the first connecting arm 542 and the second connecting arm 543 are respectively located on both sides of the connecting part 541, and correspond to the two sides or close to the two sides of the calf support 2; the positions of the calf support 2 corresponding to the first connecting arm 542 and the second connecting arm 543 are provided with connecting rods 21, the first connecting arm 542 and the corresponding connecting rod 21 are provided with connecting holes, and the shape of the connecting holes is adapted to the connecting rod 21; the strip hole 544 is located on the second connecting arm 543, and the second connecting arm 543 is connected to the corresponding connecting rod 21 through the strip hole 544; the disc-shaped eccentric connecting piece 52 is rotatably connected to the connecting part 541.

[0055] In this solution, the swing arm 54 is divided into a first connecting arm 542 and a second connecting arm 543, which correspond to the positions on both sides of the calf support 2 respectively. The connecting part 541 is a component used to connect the first connecting arm 542 and the second connecting arm 543 to the eccentric connecting member 52. The cooperation of the two connecting arms can make the swing of the calf support 2 more stable, both sides of the calf support 2 can be supported, and the service life can be increased, and the pressure brought by the calf can be distributed.

[0056] Among them, the connection hole on the first connection arm 542 is adapted to the shape of the corresponding connecting rod 21 for rotation and coordination, and the strip hole 544 on the second connection arm 543 is to cooperate with the corresponding connecting rod 21 to produce a certain activity space, with a certain rotation and swing effect. If the hole connecting the second connection arm 543 and the connecting rod 21 is also a hole adapted to the shape of the connecting rod 21, the calf support 2 will not be able to rotate, and can only produce a translational swing, and will not produce a hip twisting effect, and may even cause a jamming problem with the connecting shaft 11, and cannot work normally. This solution can solve this problem by simply setting the strip hole 544, which is low in cost and easy to install.

[0057] Since the position of the connecting shaft 11 is relatively fixed, the position of the calf support 2 is also relatively fixed, which leads to a certain degree of difficulty in matching the connecting portion 541 with the eccentric connecting member 52. In order to further reduce the matching difficulty, an optional implementation scheme is provided below, in which the eccentric connecting member 52 is disc-shaped, and the disc-shaped eccentric connecting member 52 is rotatably connected to the connecting portion 541.

[0058] The disc-shaped structure cooperates with the connecting part 541, so that a certain abutment relationship can be generated between the edge of the disc and the connecting part 541, and the abutting contact surface can have a sliding effect. At this time, when the eccentric connecting part 52 rotates eccentrically, the edge of the eccentric connecting part 52 can be used to generate a pushing effect, and the pushing effect acts on the connecting part 541 and the first connecting arm 542, so that the calf support 2 can produce a rotation and swing effect.

[0059] The disc-shaped structure can make the edge smoother, and the edge surface of the eccentric connecting member 52 and the connecting portion 541 can be more smoothly matched.

[0060] In a further configuration, a mounting groove 5411 having a shape matching that of the eccentric connecting member 52 is provided on the connecting portion 541 , and the eccentric connecting member 52 is located in the mounting groove 5411 and can rotate relative to an inner wall of the mounting groove 5411 .

[0061] The shape of the mounting groove 5411 is adapted to the eccentric connecting piece 52, and can be circular, so that the eccentric connecting piece 52 can be embedded and form a rotating fit. At this time, when the driver 51 drives the eccentric connecting piece 52 to rotate, the eccentric connecting piece 52 will rotate in the mounting groove 5411. At the same time, the eccentric effect will bring a certain push-pull effect, allowing the connecting part 541 to rotate and swing with the first connecting arm 542 and the second connecting arm 543.

[0062] Furthermore, the eccentric connecting member 52 is installed in the installation groove 5411, so that the cooperation stability between the two is better and the installation is more convenient.

[0063] Furthermore, a second groove 531 is provided at a position of the connecting seat 53 corresponding to the connecting shaft 11 , and the second groove 531 is adapted to the connecting shaft 11 , so that the connecting shaft 11 enters and abuts against the second groove 531 .

[0064] The second groove 531 and the connecting shaft 11 can form a positioning function, and the position of the connecting seat 53 corresponding to the second groove 531 can be made of metal material, and can be welded to the connecting shaft 11. Of course, it can also be implemented by only abutting. Since the first connecting arm 542 and the second connecting arm 543 are connected to the connecting rod 21, and the connecting rod 21 is fixed to the calf support 2, it means that when the connecting part 541 cooperates with the eccentric connecting member 52, the second groove 531 of the connecting seat 53 and the connecting shaft 11 will maintain abutment. The assembly state of this solution can make the connecting seat 53 stably abut on the connecting shaft 11, so that the connecting seat 53 is in a relatively stable state.

[0065] The above is only a preferred embodiment of the present invention, and the protection scope of the present invention is not limited to the above embodiments. All technical solutions under the concept of the present invention belong to the protection scope of the present invention. It should be pointed out that for ordinary technicians in this technical field, some improvements and modifications without departing from the principle of the present invention should also be regarded as the protection scope of the present invention.

Claims

1. A hip twisting calf unit, comprising a connecting bracket, a calf bracket mounted on the connecting bracket, and a first calf support member mounted on the calf bracket, characterized in that: The calf support is also provided with a second calf support, and the first calf support and the second calf support are respectively located on the front and back of the calf support; the connecting bracket is provided with a connecting shaft, the axial direction of the connecting shaft corresponds to the length direction of the calf, and the calf support is installed on the connecting shaft and rotates with the connecting shaft as the rotating axis; the calf support is also provided with a swinging assembly, and the swinging assembly is used to drive the calf support to swing back and forth on the connecting shaft.

2. The hip twisting calf unit according to claim 1, characterized in that: The first calf support has a first groove for placing the calf, and a massage airbag is arranged in the first groove, and the massage airbag performs a massage action by inflating and deflating air; and / or The second calf support has a resting platform for resting the calf.

3. The hip twisting calf unit according to claim 2, characterized in that: The connecting bracket is provided with a limiting assembly for limiting the rotation of the calf bracket in a first state or a second state; the first state and the second state are respectively a state in which the first calf support member is facing upward and the second calf support member is facing upward.

4. The hip twisting calf unit according to claim 3, characterized in that: The limiting assembly includes two limiting steps arranged on the side of the connecting shaft and a limiting protrusion arranged on the connecting bracket. The limiting protrusion cooperates with the two limiting steps respectively, and when the connecting shaft and the calf bracket rotate, the connecting shaft is limited in the first state or the second state.

5. The hip twisting calf unit according to claim 2, characterized in that: The connecting shaft is a hollow structure, a connecting nut is arranged on the connecting bracket at a position corresponding to the connecting shaft, a through hole connected to the connecting shaft is arranged axially on the connecting nut, and the through hole cooperates with the hollow structure of the connecting shaft to transmit gas.

6. The hip twisting calf unit according to any one of claims 1 to 5, characterized in that: The swing assembly includes a driver, an eccentric connector, a connecting seat, and a swing arm; the driver is installed on the connecting seat, and the connecting seat is connected to the connecting shaft; the eccentric connector is installed on the output shaft of the driver, the eccentric connector is connected to the swing arm, and the swing arm is rotatably connected to the calf support; the driver drives the eccentric connector to rotate eccentrically, and drives the calf support to swing back and forth on the connecting shaft through the swing arm; the eccentric connector is disc-shaped.

7. The hip twisting calf unit according to claim 6, characterized in that: The calf support is provided with a connecting rod for cooperating with the swing arm for rotational connection; a strip hole is provided at the position where the swing arm and the connecting rod are connected, and the connecting rod is located in the strip hole; the swing arm swings with the calf support through an eccentric connecting piece, and the connecting rod moves in the strip hole.

8. The hip twisting calf unit according to claim 7, characterized in that: The swing arm includes a connecting part, a first connecting arm and a second connecting arm both fixed on the connecting part, the connecting part is used to cooperate with an eccentric connecting piece for connection, the first connecting arm and the second connecting arm are respectively located on both sides of the connecting part, and correspond to the two sides or close to the two sides of the calf support; the positions corresponding to the first connecting arm and the second connecting arm on the calf support are provided with connecting rods, the first connecting arm and the corresponding connecting rod are provided with connecting holes, and the shape of the connecting hole is adapted to the connecting rod; the strip hole is located on the second connecting arm, and the second connecting arm is connected to the corresponding connecting rod through the strip hole; the disc-shaped eccentric connecting piece is rotatably connected to the connecting part.

9. The hip twisting calf unit according to claim 8, characterized in that: The connecting portion is provided with a mounting groove whose shape matches that of the eccentric connecting piece, and the eccentric connecting piece is located in the mounting groove and can rotate relative to the inner wall of the mounting groove.

10. The hip twisting calf unit according to claim 8, characterized in that: The connection seat is provided with a second groove at a position corresponding to the connection shaft, and the second groove is adapted to the connection shaft so as to allow the connection shaft to enter and abut against the second groove.

Images