Leg massage equipment and massage chair

Abstract

Leg massage equipment comprises a base, the base is arranged close to the thigh position of a user in a sitting posture state, the leg massage equipment further comprises a first massage part and a second massage part, the first massage part comprises a first mounting seat, the first mounting seat is arranged on the base, and a first massage piece is arranged on one side of the first mounting seat corresponding to the outer side face of the thigh; the second massage part comprises a first side plate, a second mounting seat and a jacking device, the bottom of the jacking device is arranged on the base, and the bottom of the first side plate is rotationally connected with the top of the jacking device; a second massage piece is arranged on the first side plate corresponding to the top surface of the thigh; in the working process, the jacking device is used for pushing the first side plate to the position above the first massage part, and then the first side plate is turned over to the top face of the thigh relative to the jacking device so that the second massage piece can massage the top face of the thigh.

Description

Technical Field

[0001] The present invention relates to the technical field of massage chairs, and in particular, to a leg massage device and a massage chair. Background Art

[0002] With the continuous progress and innovation of massage technology, consumers have higher and higher requirements for the comprehensiveness and depth of the massage experience that massage chairs can provide. In the current market, most massage chairs are equipped with side airbags on the seat, and these airbags can effectively massage the sides of the user's thighs. However, for the massage needs of the upper and inner sides of the thighs, existing massage chair products often fail to meet them.

[0003] Currently, no massage chair can comprehensively massage the sides, upper parts, and inner sides of the thighs at the same time. In addition, consumers also demand more personalized adjustment options, such as adjusting the height and front-back position of the side massage on the seat, to adapt to different body types and preferences. Existing massage chair products on the market also have certain limitations in this regard and cannot fully meet these advanced needs of consumers. Summary of the Invention

[0004] The purpose of the present invention is to provide a leg massage device and a massage chair, aiming to comprehensively massage the sides, upper parts, and inner sides of the thighs at the same time, and adjust the horizontal height and front-back position of the massage device.

[0005] To achieve the above purpose, the present invention provides the following technical solutions:

[0006] A leg massage device includes a base, which is arranged near the position of the user's thighs in a sitting posture, and further includes:

[0007] A first massage part, including a first mounting seat, the first mounting seat is arranged on the base, and a first massage member is provided on one side of the first mounting seat corresponding to the outer side of the thigh; and

[0008] A second massage part, including a first side plate, a second mounting seat, and a jacking device, the bottom of the jacking device is arranged on the base, and the bottom of the first side plate is rotatably connected to the top of the jacking device; a second massage member is provided on the first side plate corresponding to the top surface of the thigh;

[0009] During operation, the jacking device is used to push the first side plate above the first massage part, and then the first side plate is flipped relative to the jacking device to the top surface of the thigh so that the second massage member can massage the top surface of the thigh.

[0010] Further, it further includes an angle locking device, which includes a matching operating handle, a first pawl and a ratchet wheel. A first elastic member is connected between the first pawl and the first massage part. The ratchet wheel is pivotally connected to the first side plate. After the first side plate is turned over, the first pawl abuts against the ratchet wheel to prevent the ratchet wheel from rotating. The operating handle can push the first elastic member to release the abutment of the first pawl against the ratchet wheel.

[0011] Further, it further includes a second side plate, on which a third massage member is provided. The second side plate is rotatably connected to the first side plate. After the second side plate is turned over, the third massage member on it can massage the inner side of the thigh.

[0012] Further, the first side plate and the second side plate rotate in the same clockwise direction, so that the first side plate, the second side plate and the first mounting seat form a U-shaped space, and the first massage member and the second massage member are located in the U-shaped space.

[0013] Further, the first mounting seat can move along the length direction of the base. A displacement locking device is provided between the first mounting seat and the base for locking the first mounting seat moved to a preset position.

[0014] Further, the displacement locking device includes a fixed housing provided on the base. A movable rod is slidably connected in the fixed housing. A first sliding hole is formed on one side surface of the fixed housing along its length direction. A ratchet bar is provided in the first sliding hole. A second pawl is provided at one end of the movable rod close to the first sliding hole, and a second elastic member is connected between the other end and the first mounting seat. A third elastic member is connected between the second pawl and the movable rod. The second pawl is located in the first sliding hole.

[0015] Further, a limiting block is provided at a position of the movable rod close to the second pawl. The limiting block is provided with a first limiting hole and a second limiting hole that communicate with each other. The second pawl passes through the first limiting hole or the second limiting hole and is located in the sliding hole. The second pawl abuts against the ratchet bar through the first limiting hole, and the second pawl disengages from the ratchet bar through the second limiting hole.

[0016] Further, the jacking device includes a scissor mechanism connected to each other. The scissor mechanism includes a first connecting rod and a second connecting rod. The middle of the first connecting rod is hinged to the middle of the second connecting rod. The end of the first connecting rod is hinged to the end of the second connecting rod in an adjacent scissor mechanism. The end of the second connecting rod is hinged to the end of the first connecting rod in an adjacent scissor mechanism.

[0017] Further, the lifting device is provided with a height locking device having the same structure as the displacement locking device. Among them, the fixed housing of the height locking device is arranged on the first mounting seat, and one end of the movable rod of the height locking device away from the fixed housing is connected to the base by the second elastic member and pivotally connected to the first connecting rod.

[0018] Further, the base is provided with a second sliding hole along the moving direction of the movable rod, and the first connecting rod at the lower end of the lifting device is slidably connected to the second sliding hole; the second mounting seat is provided with a third sliding hole parallel to the second sliding hole, and the second connecting rod at the upper end of the lifting device is slidably connected to the third sliding hole.

[0019] A massage chair includes at least two leg massage devices, and further includes a seat body with a backrest. Side plate frames are respectively arranged on both sides of the seat body, and the two second massage parts are arranged on the two side plate frames and fold towards the middle of the seat body.

[0020] The beneficial effects of the present invention are as follows:

[0021] 1. For a leg massage device proposed by the present invention, by arranging the first massage member and the second massage member, multiple seat plates of the side device can be equipped with various massage methods such as airbags, heating elements, electric massage heads, etc., so as to achieve a comprehensive massage effect on the thigh area.

[0022] 2. For a leg massage device proposed by the present invention, by arranging the displacement locking assembly, the seat side device can be flexibly adjusted in the front - rear position, and different positions of the user's legs can be massaged, with strong practicability.

[0023] 3. For a leg massage device proposed by the present invention, by arranging the height locking device, the seat side device can achieve a flexible up - down position adjustment function, which not only improves the use comfort of the massage chair but also can meet the needs of users with different body types.

[0024] 4. For a leg massage device proposed by the present invention, by arranging the angle locking device, the angle between the first side plate and the second mounting seat can be fixed to form a U - shaped space, ensuring that the user's legs are not squeezed by the first side plate and can support the table board, thereby providing a more comfortable massage experience for the user.

[0025] 5. For a massage chair proposed by the present invention, the user can achieve the function of single - section inward flipping to effectively massage the upper part of the thigh. In addition, multiple inward flips can be used to achieve a comprehensive wrap - around massage of the thigh. After the side plate is flipped inward, the upper space can be flexibly utilized to place the seat plate, providing additional comfortable sitting posture support for the user. Description of the Drawings

[0026] To more clearly illustrate the technical solutions in the embodiments of the invention or the prior art, the following will briefly introduce the drawings required for the description of the embodiments or the prior art. Obviously, the drawings in the following description are only some embodiments of the invention. For those of ordinary skill in the art, without creative efforts, other drawings can also be obtained based on these drawings.

[0027] Figure 1 Schematic diagram of Embodiment 1 of a leg massage device of the present invention;

[0028] Figure 2 One of the side views of Embodiment 1 of a leg massage device of the present invention;

[0029] Figure 3 Another side view of Embodiment 1 of a leg massage device of the present invention;

[0030] Figure 4 The third side view of Embodiment 1 of a leg massage device of the present invention;

[0031] Figure 5 One of the state diagrams of Embodiment 1 of a leg massage device of the present invention;

[0032] Figure 6 One of the state diagrams of Embodiment 1 of a leg massage device of the present invention;

[0033] Figure 7 One of the schematic diagrams of the angle locking device of a leg massage device of the present invention;

[0034] Figure 8 Another schematic diagram of the angle locking device of a leg massage device of the present invention;

[0035] Figure 9 One of the state diagrams of the angle locking device of a leg massage device of the present invention;

[0036] Figure 10 Another state diagram of the angle locking device of a leg massage device of the present invention;

[0037] Figure 11 One of the state diagrams of the height locking device of a leg massage device of the present invention;

[0038] Figure 12 Another state diagram of the height locking device of a leg massage device of the present invention;

[0039] Figure 13 One of the schematic diagrams of the height locking device of a leg massage device of the present invention (the fixed outer shell is omitted);

[0040] Figure 14 This is a second schematic diagram of a height locking device for a leg massage device according to the present invention (the fixed housing is omitted);

[0041] Figure 15 A schematic diagram of a height locking device for a leg massage device according to the present invention (the fixed housing and the limit block are omitted);

[0042] Figure 16 is a schematic diagram of a second embodiment of a leg massage device of the present invention;

[0043] Figure 17 This is a schematic diagram of a third embodiment of a leg massage device according to the present invention;

[0044] Figure 18 This is a second schematic diagram of the third embodiment of a leg massage device of the present invention;

[0045] Figure 19 Schematic diagram of a massage chair according to the present invention.

[0046] In the figure, 10, base; 20, first mounting seat; 301, second mounting seat; 302, first side plate; 303, second side plate; 401, first massage member; 402, second massage member; 403, third massage member; 501, fixed box; 5011, first connecting plate; 502, ratchet; 503, first pawl; 504, first elastic member; 505, limit plate; 506, handle; 5061, first toggle block; 5062, second connecting plate; 507, cover plate; 5051, limit convex portion; 50 52. Second toggle block; 5071. Arc-shaped hole; 601. First connecting rod; 602. Second connecting rod; 701. Fixed shell; 702. Movable rod; 703. Second pawl; 704. Second elastic member; 705. Limit block; 7051. First limiting hole; 7052. Second limiting hole; 706. Third elastic member; 7011. First sliding hole; 7012. Ratchet; 201. Second sliding hole; 3011. Third sliding hole; 80. Seat body; 801. Backrest; 802. Side panel frame; 803. Table top. DETAILED DESCRIPTION

[0047] The following combination Figure 1 - 19 The present invention will be described in detail.

[0048] Embodiment 1:

[0049] A leg massage device, such as Figure 1 - 4 As shown, it includes a base 10, which is arranged near the thigh of a user in a sitting state, and further includes:

[0050] The first massage part includes a first mounting seat 20 which is arranged on the base 10, and a first massage member 401 is provided on one side of the first mounting seat 20 corresponding to the outer side of the thigh; and

[0051] The second massage part includes a first side plate 302, a second mounting seat 301 and a lifting device. The bottom of the lifting device is arranged on the base 10, and the bottom of the first side plate 302 is rotatably connected to the top of the lifting device; a second massage member 402 is provided on the first side plate 302 corresponding to the top surface of the thigh;

[0052] During operation, the lifting device is used to push the first side plate 302 above the first massage part, and then the first side plate 302 is flipped relative to the lifting device to the top surface of the thigh so that the second massage member 402 massages the top surface of the thigh.

[0053] Specifically, the first mounting seat 20 is movably arranged on the base 10, and the first mounting seat 20 can move along the length direction of the base 10. The base 10 is a guide rail, and guide wheels adapted to the guide rail are installed at the bottom of the first mounting seat 20. A displacement locking device is arranged between the first mounting seat 20 and the base 10 for locking the first mounting seat 20 moved to a preset position. A first massage member 401 is arranged on one side of the first mounting seat 20, and the first massage member 401 is electrically connected to a driving device. The first massage member 401 is an electric massage head, and the driving device is a driving motor. The driving motor is arranged inside the first mounting seat 20; and

[0054] And a lifting device is arranged between the second mounting seat 301 and the first mounting seat 20 for locking the second mounting seat 301 moved to a preset height;

[0055] It can perform a wrap-around massage on the outer side, top surface and inner side of the thigh at the same time. The base 10 is close to the lower part of the user's thigh; the first massage part is fixed to the side of the base 10 and aims at the outer side of the thigh; the second massage part realizes lifting and flipping through the lifting device, covers the top surface of the thigh and forms a massage space.

[0056] In this embodiment, an angle locking device is further included. The angle locking device includes a matching operating handle 506, a first ratchet pawl 503 and a ratchet wheel 502. A first elastic member 504 is connected between the first ratchet pawl 503 and the first massage part, and the ratchet wheel 502 is pivotally connected to the first side plate 302; after the first side plate 302 is flipped, the first ratchet pawl 503 abuts against the ratchet wheel 502 to prevent the ratchet wheel 502 from rotating, and the operating handle 506 can push the first elastic member 504 so that the first ratchet pawl 503 releases the abutment against the ratchet wheel 502.

[0057] As Figures 7 - 10As shown, the angle locking device includes a fixed box body 501, in which a first pawl 503 and a ratchet 502 are provided to match each other, a first elastic member 504 is connected between the first pawl 503 and the fixed box body 501, the ratchet 502 is pivotally connected to the fixed box body 501, and the first pawl 503 abuts against one side of the ratchet 502.

[0058] A handle 506 is pivotally connected to the outside of the fixed box 501. Two sides of the handle 506 are respectively connected to the first side plate 302 and the ratchet 502. The handle 506 has at least two first toggle blocks 5061 distributed along its circumference. Specifically, the angle formed by the two first toggle blocks 5061 and the center of the handle 506 is preferably 90°, or the angle between the two first toggle blocks 5061 can be set according to actual conditions.

[0059] Specifically, the fixed box body 501 has a first connecting plate 5011 extending toward the first mounting seat 20, and the fixed box body 501 is fixed to the first mounting seat 20 through the first connecting plate 5011, and the handle 506 has a second connecting plate 5062 extending toward the second mounting seat 301, and the handle 506 is fixed to the second mounting seat 301 through the second connecting plate 5062.

[0060] A limit plate 505 is pivotally connected to a position near the first pawl 503 within the fixed housing 501. A limit protrusion 5051 extends radially from the limit plate 505. A second toggle block 5052 extends from the limit protrusion 5051 toward the handle 506. The second toggle block 5052 is exposed from the fixed housing 501 and positioned between the two first toggle blocks 5061. A cover plate 507 is mounted on the side of the fixed housing 501 facing the handle 506. The cover plate 507 is provided with an arcuate hole 5071 along the rotational trajectory of the second toggle block 5052. The second toggle block 5052 is exposed from the fixed housing 501 by passing through the arcuate hole 5071 and positioned between the two first toggle blocks 5061.

[0061] The first side plate 302 and the first mounting seat 20 are in the same plane as the starting position, the limiting protrusion 5051 of the limiting plate 505 is disengaged from the first pawl 503, and the ratchet 502 abuts against the first pawl 503. When the first side plate 302 is flipped inward relative to the first mounting seat 20, the first side plate 302 drives the handle 506 and the ratchet 502 to rotate synchronously, one of the first toggle blocks 5061 on the handle 506 moves away from the second toggle block 5052, and the other first toggle block 5061 approaches the second toggle block 5052 until the first toggle block 5061 abuts against and pushes the second toggle block 5052 to move along the arc-shaped hole 5071. Then, the second toggle block 5052 drives the limiting plate 505 to rotate, and the limiting protrusion 5051 rotates toward the first pawl 503 until the second toggle block 5052 is released. The movable block 5052 abuts against the other end of the arc-shaped hole 5071. At this time, the second toggle block 5052 locks the handle 506 through the first toggle block 5061, and the second side plate 303 cannot continue to flip over, and the limiting protrusion 5051 abuts against the first pawl 503, so that the first pawl 503 is disengaged from the ratchet 502, and the first side plate 302 can be reset normally. When the first side plate 302 is reset to the starting position, the first toggle block 5061 of the handle 506 pushes the limiting plate 505 to disengage the limiting protrusion 5051 from the first pawl 503, and the first pawl 503 works normally.

[0062] This embodiment further includes a second side panel 303, on which a third massage element 403 is disposed. The second side panel 303 is rotatably connected to the first side panel 302. When the second side panel 303 is flipped, the third massage element 403 can massage the inner thigh. Furthermore, the first and second side panels 302, 303 rotate in the same clockwise direction, so that the first and second side panels 302, 303, and first mounting base 20 form a gate-shaped space, with the first and second massage elements 401, 402 located within the gate-shaped space.

[0063] One end of the first side panel 302 is hinged to the mounting seat, and the other end of the first side panel 302 is hinged to the second side panel 303. The first side panel 302 is connected to the mounting seat and the second side panel 303 through hinges or other hinges; the second massage part 402 and the third massage part 403 can be various massage devices such as air bags and heating plates.

[0064] In this embodiment, Figures 11 - 15 As shown, the first mounting seat 20 can move along the length direction of the base 10, and a displacement locking device is provided between the first mounting seat 20 and the base 10 for locking the first mounting seat 20 moved to a preset position.

[0065] Further, the displacement locking device includes a fixed housing 701 provided on the base 10. A movable rod 702 is slidably connected within the fixed housing 701. A first sliding hole 7011 is formed on one side surface of the fixed housing 701 along its length direction. A ratchet bar 7012 is provided within the first sliding hole 7011. One end of the movable rod 702 close to the first sliding hole 7011 is provided with a second ratchet pawl 703, and the other end is connected to the first mounting seat 20 by a second elastic member 704. A third elastic member 706 is connected between the second ratchet pawl 703 and the movable rod 702. The second ratchet pawl 703 is located within the first sliding hole 7011.

[0066] Further, a limiting block 705 is provided at a position of the movable rod 702 close to the second ratchet pawl 703. The limiting block 705 is provided with a first limiting hole 7051 and a second limiting hole 7052 that communicate with each other. The second ratchet pawl 703 passes through the first limiting hole 7051 or the second limiting hole 7052 and is located within the sliding hole. The second ratchet pawl 703 abuts against the ratchet bar 7012 through the first limiting hole 7051, and the second ratchet pawl 703 disengages from the ratchet bar 7012 through the second limiting hole 7052.

[0067] Specifically, a transition surface is provided between the first limiting hole 7051 and the second limiting hole 7052. The second ratchet pawl 703 slides from the first limiting hole 7051 to the second limiting hole 7052 through the transition surface. A spring is sleeved between the limiting block 705 and the movable rod 702, and the limiting block 705 is snap-fitted to the movable rod 702 through the spring.

[0068] The starting end of the first sliding hole 7011 is the end close to the movable rod 702, and the ending end of the first sliding hole 7011 is the end far from the movable rod 702. When the second ratchet pawl 703 abuts against the starting end of the first sliding hole 7011, the second ratchet pawl 703 is located within the first limiting hole 7051 and abuts against the second ratchet bar 7012 under the action of the third elastic member 706. The movable rod 702 moves towards the inside of the fixed housing 701, the second ratchet pawl 703 moves towards the ending end of the first sliding hole 7011, and the lifting device gradually lifts the second massage part. When the second ratchet pawl 703 abuts against the ending end of the first sliding hole 7011, the second massage part reaches the highest position, and the second ratchet pawl 703 slides from the first limiting hole 7051 to the second limiting hole 7052. At this time, the second ratchet pawl 703 disengages from the second ratchet bar 7012, then the movable rod 702 can be normally reset. When the movable rod 702 resets to the starting end, the second ratchet pawl 703 slides from the second limiting hole 7052 to the first limiting hole 7051. At this time, the second ratchet pawl 703 abuts against the second ratchet bar 7012 again.

[0069] In this embodiment, as Figures 5 - 6As shown, the jacking device includes a scissor mechanism connected to each other. The scissor mechanism includes a first link 601 and a second link 602. The middle of the first link 601 is hinged to the middle of the second link 602. The end of the first link 601 is hinged to the end of the second link 602 in the scissor mechanism at an adjacent position. The end of the second link 602 is hinged to the end of the first link 601 in the scissor mechanism at an adjacent position. According to actual requirements, the numbers of the first link 601 and the second link 602 can be adjusted appropriately.

[0070] In this embodiment, as Figures 5 - 6 shown, the height locking device has the same structure as the displacement locking device. Among them, the fixed housing 701 of the height locking device is provided on the first mounting seat 20. One end of the movable rod 702 of the height locking device away from the fixed housing 701 is connected to the base 10 with the second elastic member 704 and is pivotally connected to the first link 601.

[0071] Further, the base 10 is provided with a second sliding hole 201 along the moving direction of the movable rod 702. The first link 601 at the lower end of the jacking device is slidably connected to the second sliding hole 201. The second mounting seat 301 is provided with a third sliding hole 3011 parallel to the second sliding hole 201. The second link 602 at the upper end of the jacking device is slidably connected to the third sliding hole 3011.

[0072] A massage chair, as Figure 19 shown, includes at least two leg massage devices, and also includes a seat body 80 provided with a backrest 801. Side plate frames 802 are respectively provided on both sides of the seat body 80. The two second massage parts are provided on the two side plate frames 802 and are folded towards the middle of the seat body 80. The first side plate 302 can place a table board 803 after being folded 90°, making flexible use of the upper space.

[0073] Embodiment 2:

[0074] In this embodiment, as Figure 16 shown, the first massage member 401 of the first mounting seat 20 is an airbag. The driving motor provided on the first mounting seat 20 is cancelled. The first side plate 302, the second side plate 303 and the first mounting seat 20 can form a square to wrap the thigh for massage, realizing the massage of the thigh by the airbag wrapping.

[0075] Embodiment 3:

[0076] In this embodiment, as Figures 17 - 18As shown in the figure, the lifting device of the second massage part is changed from a connecting rod assembly to: at least two guide rails are arranged in the first mounting seat 20 along the direction perpendicular to the second mounting seat 301, and rollers adapted to the guide rails are arranged on the second mounting seat 301; the height locking device is changed from a horizontal setting to a vertical setting. Among them, the fixed housing 701 of the height locking device is fixed to the second mounting seat 301, and one end of the movable rod 702 away from the fixed housing 701 is connected to the first mounting seat 20 and is connected to the second mounting seat 301 with a second elastic member 704.

[0077] The above embodiments are only used to illustrate the technical concept and characteristics of the present invention, and their purpose is to enable those skilled in the art to understand the content of the present invention and implement it, and cannot be used to limit the protection scope of the present invention. Any equivalent changes or modifications made according to the spirit and essence of the present invention should be covered within the protection scope of the present invention.

Claims

1. A leg massage device, comprising a base, which is arranged near the thigh position of a user in a sitting position, characterized in that, It further includes: A first massage part, including a first mounting base, the first mounting base is arranged on the base, and a first massage member is provided on one side of the first mounting base corresponding to the outer side of the thigh; And A second massage part, including a first side plate, a second mounting base and a jacking device, the bottom of the jacking device is arranged on the base, and the bottom of the first side plate is rotatably connected to the top of the jacking device; a second massage member is provided on the first side plate corresponding to the top surface of the thigh; During operation, the jacking device is used to push the first side plate above the first massage part, and then the first side plate is flipped relative to the jacking device to the top surface of the thigh so that the second massage member can massage the top surface of the thigh.

2. The leg massage device according to claim 1, wherein It further includes an angle locking device, the angle locking device includes a matching operating handle, a first pawl and a ratchet wheel, a first elastic member is connected between the first pawl and the first massage part, and the ratchet wheel is pivotally connected to the first side plate; after the first side plate is flipped, the first pawl abuts against the ratchet wheel to prevent the ratchet wheel from rotating, and the operating handle can push the first elastic member so that the first pawl releases the abutment against the ratchet wheel.

3. A leg massage device according to claim 1, characterized in that, It further includes a second side plate, a third massage member is provided on the second side plate, the second side plate is rotatably connected to the first side plate, and after the second side plate is flipped, the third massage member on it can massage the inner side of the thigh.

4. The leg massage device according to claim 3, characterized in that The first side plate and the second side plate rotate in the same clockwise direction, so that the first side plate, the second side plate and the first mounting base form a U-shaped space, and the first massage member and the second massage member are located in the U-shaped space.

5. A leg massage device according to claim 1, characterized in that, The first mounting base can move along the length direction of the base, and a displacement locking device is provided between the first mounting base and the base for locking the first mounting base moved to a preset position.

6. The leg massage device according to claim 5, characterized in that, The displacement locking device includes a fixed housing arranged on the base, a movable rod is slidably connected in the fixed housing, a first sliding hole is opened on one side surface of the fixed housing along its length direction, a ratchet bar is arranged in the first sliding hole, a second pawl is arranged at one end of the movable rod close to the first sliding hole, and a second elastic member is connected between the other end and the first mounting base, a third elastic member is connected between the second pawl and the movable rod, and the second pawl is located in the first sliding hole.

7. The leg massage device according to claim 6, characterized in that, A limiting block is arranged at a position of the movable rod close to the second pawl, the limiting block is provided with a first limiting hole and a second limiting hole communicated with each other, the second pawl passes through the first limiting hole or the second limiting hole and is located in the sliding hole, the second pawl abuts against the ratchet bar through the first limiting hole, and the second pawl disengages from the ratchet bar through the second limiting hole.

8. A leg massage device according to claim 2, characterized in that, The jacking device includes an interconnected scissor mechanism, the scissor mechanism includes a first connecting rod and a second connecting rod, the middle of the first connecting rod is hinged to the middle of the second connecting rod, the end of the first connecting rod is hinged to the end of the second connecting rod in an adjacent scissor mechanism, and the end of the second connecting rod is hinged to the end of the first connecting rod in an adjacent scissor mechanism.

9. The leg massage device according to claim 6, wherein, The jacking device is provided with a height locking device having the same structure as the displacement locking device. Among them, the fixed housing of the height locking device is arranged on the first mounting seat, and one end of the movable rod of the height locking device away from the fixed housing is connected to the base by the second elastic member and pivotally connected to the first connecting rod.

10. A leg massage device according to claim 9, characterized in that, The base is provided with a second sliding hole along the moving direction of the movable rod, and the first connecting rod at the lower end of the jacking device is slidably connected to the second sliding hole; the second mounting seat is provided with a third sliding hole parallel to the second sliding hole, and the second connecting rod at the upper end of the jacking device is slidably connected to the third sliding hole.

11. A massage chair, comprising at least two leg massage devices as described in any one of claims 1-10, characterized in that, It further includes a seat body with a backrest, and side plate frames are respectively arranged on both sides of the seat body, and the two second massage parts are arranged on the two side plate frames and are folded towards the middle of the seat body.

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