Massage chair having flexible guide rail structure and use method

Abstract

Disclosed in the present invention are a massage chair having a flexible guide rail structure and a use method. The massage chair comprises two guide rail bodies arranged left and right, wherein when crossover rollers cross over a pivoting notch, two rotating sleeves are located in a gap therebetween for allowing a backrest connecting strip or a seat connecting strip to pass through, and the two rotating sleeves are respectively disposed on two sides of the backrest connecting strip or the seat connecting strip in the width direction, so as to provide supporting force for the crossover rollers to cross over the pivoting notch. According to the present application, during adjustment of the position of a massage mechanism, because when the crossover rollers cross over the pivoting notch, the two rotating sleeves are respectively disposed on two sides of the backrest connecting strip or the seat connecting strip in the width direction, so as to provide the supporting force for the crossover rollers, the massage mechanism can be adjusted and moved to a position between a seat guide rail and a backrest guide rail to massage the part of a human body located in said position, so that the moving stroke of the massage mechanism is increased, and massage blind spots are also eliminated, thereby enhancing user experience of the massage chair having the flexible guide rail structure of the present application.

Description

Massage chair with flexible guide rail structure and use method Technical Field

[0001] The invention relates to a massage chair with a flexible guide rail structure and a use method thereof. Background Art

[0002] The massage chair mainly consists of a guide rail structure and a massage movement arranged on the guide rail structure. The user can adjust the position of the massage movement according to the required massage position.

[0003] In the massage chairs in the related art, the guide rail structure is usually composed of a chair guide rail and a back guide rail that rotates to fit on the end of the chair guide rail. There is a rotation gap between the chair guide rail and the back guide rail, which makes the massage movement only able to move along the length direction of the chair guide roller or the length direction of the back guide rail, resulting in a limited moving range of the massage movement, that is, the adjustment position of the massage movement is limited to the chair guide rail or only to the back guide rail, resulting in the massage movement being unable to massage the part of the human body located between the chair guide rail or the back guide rail, resulting in a poor user experience.

[0004] Therefore, the present application designs a massage chair with a flexible guide rail structure and a method of use to address one or more of the above problems. Technical Solutions

[0005] The present invention provides a massage chair with a flexible guide rail structure and a method of use, which can effectively solve the above problems.

[0006] The present invention is achieved in that:

[0007] The present invention relates to a massage chair with a flexible guide rail structure, comprising two guide rail bodies arranged on the left and right, wherein the guide rail bodies comprise a horizontally arranged chair guide rail and a back guide rail rotatably matched with the chair guide rail, and a rotation gap is formed between the chair guide rail and the back guide rail;

[0008] Also includes

[0009] The hinge assembly includes a chair connecting bar fixed to the inner side of the rear end of the chair guide rail and a back connecting bar fixed to the inner side of the bottom of the back guide rail and rotatably engaged with the chair connecting bar;

[0010] A massage movement, located between the two guide rail bodies, with a sliding seat at the lower end of the massage movement, and with crossing rollers on both ends of the sliding seat facing the rotating notch that are slidably engaged with the back guide rail and / or the chair guide rail;

[0011] Among them, when the crossing roller crosses the rotation gap, the two rotating sleeves are located in the gap between the two for the back connecting bar or the chair connecting bar to pass through, and the two rotating sleeves are placed on both sides of the width direction of the back connecting bar or the chair connecting bar to provide support for the crossing roller to cross the rotation gap.

[0012] The present invention also relates to a method for using a massage chair having a flexible guide rail structure, comprising the following steps:

[0013] S1: The sliding seat drives the massage mechanism to move toward the rotating notch;

[0014] S2: The two rotating sleeves are slid apart and placed on both sides of the back connecting bar and / or the chair connecting bar. The back connecting bar and the chair connecting bar provide support for the rotating sleeves so that the spanning roller end of the massage mechanism can smoothly pass through the rotation gap.

[0015] S3: The roller end of the massage movement crosses the rotation gap and is located between the chair guide rail and the back guide rail to massage the human body part at that position and eliminate the massage blind spot. Beneficial effects

[0016] The beneficial effects of the present invention are:

[0017] When adjusting the position of the massage movement of the present application, since the crossing roller crosses the rotating gap, the two rotating sleeves are placed on both sides of the width direction of the back connecting bar or the chair connecting bar to provide support for the crossing roller, so that the massage movement can be adjusted to move to the position between the chair guide rail and the back guide rail to massage the part of the human body in the above position, which not only increases the moving range of the massage movement, but also eliminates massage blind spots, thereby improving the user experience of the massage chair equipped with the flexible guide rail structure of the present application. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the following briefly introduces the drawings required for use in the embodiments. It should be understood that the following drawings only illustrate certain embodiments of the present invention and therefore should not be regarded as limiting the scope. For ordinary technicians in this field, other relevant drawings can be obtained based on these drawings without paying any creative work.

[0019] FIG1 is a schematic diagram of the overall structure of the present invention;

[0020] FIG2 is an exploded schematic diagram of the sliding seat at the lower end of the massage movement according to the present invention;

[0021] FIG3 is an exploded schematic diagram illustrating the assembly relationship between the stabilizing roller and the spanning roller according to the present invention;

[0022] FIG4 is an exploded view of another embodiment of the massage mechanism of the present application;

[0023] FIG5 is a schematic structural diagram of the stabilizing roller of the present invention;

[0024] FIG6 is a schematic structural diagram of a deflection space according to the present invention;

[0025] 7 is a schematic diagram of the state of the rotating sleeve and the back connecting strip and the chair connecting strip when the crossing roller crosses the rotation gap of the present invention.

[0026] The accompanying drawings are marked as follows:

[0027] 10. Guide rail body;

[0028] 11. Chair guide rail; 111. Chair rack; 112. Chair guide groove; 113. Chair rolling groove; 114. Yield cavity;

[0029] 12. Back guide rail; 121. Back rack; 122. Back guide groove; 123. Back rolling groove; 124. Shielding plate;

[0030] 13. Rotational notch; 14. First connecting plate; 15. Second connecting plate;

[0031] 20. Massage mechanism; 21. Sliding seat; 22. Driving rod; 221. Traveling gear; 23. Rotating rod; 231. Limiting part;

[0032] 30. Stabilizing roller; 31. First disc; 311. First mounting ring groove; 312. Lug; 32. First rotating sleeve; 33. First mounting ring; 34. Oil storage chamber;

[0033] 40. Spanning roller; 41. Second disc; 42. Second rotating sleeve; 43. Mounting plate; 431. Mounting shaft; 432. Rotating sleeve; 433. Limiting hole; 44. Deflection space;

[0034] 50. Hinge assembly; 51. Chair connecting strip; 511. Assembly portion; 512. Chair guide surface; 52. Back connecting strip; 521. Assembly groove; 522. Back guide surface. Modes for Carrying Out the Invention

[0035] In order to make the purpose, technical solutions and advantages of the embodiments of the present invention clearer, the technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative work are within the scope of protection of the present invention. Therefore, the following detailed description of the embodiments of the present invention provided in the drawings is not intended to limit the scope of the invention for which protection is sought, but merely represents selected embodiments of the present invention. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative work are within the scope of protection of the present invention.

[0036] In the description of the present invention, the terms "first" and "second" are used for descriptive purposes only and should not be understood to indicate or imply relative importance or implicitly specify the number of the technical features indicated. Therefore, a feature specified as "first" or "second" may explicitly or implicitly include one or more of the features. In the description of the present invention, "plurality" means two or more, unless otherwise specifically defined.

[0037] As shown in FIG1 , a massage chair with a flexible guide rail structure includes two guide rail bodies 10 arranged on the left and right, and also includes a massage movement 20 that slides between the two guide rail bodies 10, so that the user can adjust the position of the massage movement 20 on the flexible guide rail structure to meet the user's needs for massaging different parts of the body.

[0038] As shown in Figures 1 and 2, the guide rail body 10 includes a horizontally arranged chair rail 11 and a back rail 12 that pivotally engages with the chair rail 11. The two chair rails 11 are fixedly connected together by a first connecting plate 14, while the two back rails 12 are fixedly connected together by a second connecting plate 15. Because the line connecting the human head and spine is an arc, the back rail 12 is designed to conform to ergonomic requirements, accommodating a relaxed state.

[0039] As shown in Figures 1 and 2, the massage chair further includes a hinge assembly 50 fixed to one end of the chair rail 11 for the back rail 12 to rotate around. The back rail 12 rotates around the hinge assembly 50, so that a rotation gap 13 is formed at the rotation point between the chair rail 11 and the back rail 12.

[0040] As shown in Figures 2 and 3, the lower end of the massage movement 20 is fixedly connected to a sliding seat 21. The sliding seat 21 has two ends on one side perpendicular to the sliding direction, which are slidably connected to the chair guide rail 11 and / or the back guide rail 12. The crossing roller 40 is spaced away from the end face of the sliding seat 21 and two rotating sleeves 432 are symmetrically arranged; the end of the crossing roller 40 of the massage movement 20 is arranged toward the rotating notch 13.

[0041] As shown in Figures 1, 3 and 5, the two chair guide rails 11 are provided with chair guide grooves 112 on the inner sides facing each other for sliding cooperation of the crossing roller 40, and the two back guide rails 12 are provided with back guide grooves 122 on the inner sides facing each other for sliding cooperation of the crossing roller 40; the chair guide rail 11 is provided with a chair rolling groove 113 which is connected with the chair guide groove 112 and for sliding cooperation of the two rotating sleeves 432, and the two opposite groove walls of the chair rolling groove 113 are tangent to the outer surface of each rotating sleeve 432, and the back guide rail 12 is provided with a back rolling groove 123 which is connected with the back guide groove 122 and for sliding cooperation of the two rotating sleeves 432, and the two opposite groove walls of the back rolling groove 123 are tangent to the outer surface of each rotating sleeve 432 to reduce the friction between the rotating sleeve 432 and the chair rolling groove 113 and / or the back rolling groove 123.

[0042] As shown in Figures 2 and 7, the hinge assembly 50 includes a chair connecting strip 51 fixed to the bottom wall of the chair rolling groove 113 on the side facing the rotation notch 13, and a back connecting strip 52 fixed to the bottom wall of the back rolling groove 123 on the side facing the rotation notch 13. The end of the chair connecting strip 51 away from the connection end with the chair guide rail 11 has an assembly portion 511 protruding toward the back guide rail 12, and the back connecting strip 52 is provided with an assembly groove 521 for accommodating the assembly portion 511. A rotating shaft (not shown in the figure) is provided in the assembly groove 521 for the back connecting strip 52 to rotate and cooperate in the assembly groove 521.

[0043] It should be noted that the angle between the back connecting bar 52 and the chair connecting bar 51 is equal to the angle between the chair guide rail 11 and the back guide rail 12 .

[0044] Since the lumbar intervertebral disc has a certain degree of elasticity, the height of a person lying flat will be correspondingly lengthened relative to when sitting down. By using the above structure as the hinge assembly 50, when the back guide rail 12 rotates around the chair guide rail 11, the distance between the two end points of the guide rail body 10 can be lengthened to 1 cm to 9 cm to adapt to the changes in height of the human body in different postures.

[0045] The distance between the two sides of the seat connecting strip 51 parallel to the walls of the seat rolling groove 113 is defined as the width of the seat connecting strip 51, and the distance between the two sides of the back connecting strip 52 parallel to the walls of the back rolling groove 123 is defined as the width of the back connecting strip 52. In this embodiment, the distance between the two rotating sleeves 432 is greater than or equal to the width of the seat connecting strip 51 and the width of the back connecting strip 52.

[0046] As shown in Figure 7, the end of the chair connecting strip 51 away from the back connecting strip 52 has a chair guide surface 512 for the two rotating sleeves 432 to slide open and be arranged on both sides of the width direction of the chair connecting strip 51. The chair guide surface 512 is in a flared shape that is inclined along the midline of the width of the chair connecting strip 51 and close to the back connecting strip 52.

[0047] As shown in Figure 7, the back connecting strip 52 has a back guide surface 522 at one end away from the chair connecting strip 51 for the two rotating sleeves 432 to slide open and be placed on both sides of the width direction of the back connecting strip 52. The back guide surface 522 is in a flared shape that is inclined along the midline of the width of the back connecting strip 52 and close to the chair connecting strip 51.

[0048] When the massage movement 20 crosses the rotation gap 13, the two rotating sleeves 432 on the crossing roller 40 slide open the back guide surface 522 on the back connecting strip 52 and are placed on both sides of the width direction of the back connecting strip 52 (or the two rotating sleeves 432 slide open the chair guide surfaces 512 on the chair connecting strip 51 and are placed on both sides of the width direction of the chair connecting strip 51), and then pass through the chair connecting strip 51 (or the back connecting strip 52), so that the crossing roller 40 end of the massage movement 20 can smoothly cross the rotation gap 13 to meet the massage needs of this position and eliminate the massage blind spot.

[0049] As shown in Figures 2 and 3, a drive rod 22 is mounted on the sliding seat 21, which rotates relative to one side of the spanning gear. Travel gears 221 are coaxially fixedly connected to both ends of the drive rod 22. A motor (not shown) is mounted on the sliding seat 21 to control the rotation of the drive rod 22. In this embodiment, the motor is bidirectional, with a gear train (not shown) interposed between the drive rod 22 and the motor. The motor drives the gear train, thereby controlling the rotation of the drive rod 22.

[0050] As shown in Figures 2 and 3, in this embodiment, the initial position of the massage movement 20 is located on the back guide rail 12. The roller 40 crossing the massage movement 20 is located at the bottom of the sliding seat 21 (i.e., toward the side of the rotation notch 13), and the traveling gear 221 is located at the top of the sliding seat 21 (i.e., away from the side of the rotation notch 13). The two back guide rails 12 are provided with back racks 121 facing inward for the traveling gear 221 to engage.

[0051] When the motor rotates forward, the motor controls the drive rod 22, causing the travel gear 221 to rotate forward and mesh with the back rack 121, thereby moving the massage mechanism 20 downward (i.e., the massage mechanism 20 moves downward toward the chair rail 11). When the motor rotates reversely, the motor drives the travel gear 221 to rotate reversely, meshing the travel gear 221 with the back rack 121, thereby moving the massage mechanism 20 upward (i.e., the massage mechanism 20 moves upward away from the chair rail 11). It should be noted that when the massage mechanism 20 moves downward and is at its lowest position, the travel gear 221 remains meshed with the back rack 121 located on the back rail 12.

[0052] As another embodiment of the present application, as shown in FIG4 , the massage mechanism 20 is initially positioned on the chair guide rails 11 . The roller 40 spanning the massage mechanism 20 is located at the rear end of the sliding seat 21 (i.e., toward the rotation notch 13 ), while the travel gear 221 is located at the front end of the sliding seat 21 (i.e., away from the rotation notch 13 ). Chair racks 111 are provided on the inner sides of the two chair guide rails 11 facing each other, engaging the travel gear 221. The principle by which the chair rack 111 and the travel gear 221 mesh to drive the massage mechanism 20 is similar to the principle by which the back rack 121 meshes and slides with the travel gear 221, and therefore will not be further described here.

[0053] As shown in Figures 2 to 4, the driving rod 22 is rotatably coupled to the axial ends thereof with stabilizing rollers 30 coaxially arranged with the traveling gear 221. The stabilizing rollers 30 are equal in size to the crossing rollers 40. Thus, the stabilizing rollers 30 can also be slidably engaged in the back guide groove 122 or the chair guide groove 112, thereby improving the stability of the massage movement 20 during movement.

[0054] As shown in Figures 3 and 5, the stabilizing roller 30 includes a first disc 31 that is coaxial and rotatably engaged with the end of the driving rod 22, and a first rotating sleeve 32 that is rotatably engaged with the circumference of the first disc 31. The crossing roller 40 includes a second disc 41 that is coaxial and rotatably engaged with the rear end side of the sliding seat 21, and a second rotating sleeve 42 that is rotatably engaged with the circumference of the second disc 41.

[0055] As shown in Figure 3, the first rotating sleeve 32 protrudes away from the end face of the massage movement 20 to form a first mounting ring 33. The end face of the first disc 31 is provided with a first mounting ring groove 311 for the first mounting ring 33 to engage with. The first mounting ring 33 engages with the bottom of the first mounting ring groove 311 on one end face of the first rotating sleeve 32, and the other end face abuts against the bottom of the back guide groove 122 to achieve rotational cooperation with the first disc 31.

[0056] As shown in Figures 3 and 5 , a plurality of flanges 312 are arranged in a circumferential array on the outer surface of the first disc 31. The first rotating sleeve 32, the first disc 31, and adjacent flanges 312 enclose an oil reservoir 34. Lubricating oil is injected into the oil reservoir 34, and the first rotating sleeve 32 rotates relative to the first disc 31, allowing the lubricating oil to fill the gap between them. This reduces friction and wear between the first disc 31 and the first rotating sleeve 32. This not only reduces energy loss during the movement of the massage mechanism 20 and improves transmission efficiency, but also reduces noise and vibration caused by friction, improving the quietness and stability of the massage chair's operating environment.

[0057] It should be noted here that since the first disc 31 and the second disc 41 have the same structure, and the first rotating sleeve 32 and the second rotating sleeve 42 have the same structure, the second disc 41 and the second rotating sleeve 42 will not be described in detail.

[0058] As shown in Figures 2 and 3, the rear end of the sliding seat 21 is formed with protruding rods 23 on both sides. The second disc 41 is rotatably engaged with the circumference of the protruding rods 23 via bearings. The spanning roller 40 also includes a mounting plate 43 with two mounting shafts 431 protruding from its surface. The two mounting shafts 431 are symmetrically and spaced apart on the mounting plate 43. The mounting plate 43 is circular and fixed to the second disc 41. The mounting shafts 431 are rotatably engaged with rotating sleeves 432.

[0059] As shown in FIG2 , since the back guide rail 12 is an arc-shaped structure, in order to ensure the stability of the massage movement 20 during the movement driven by the rear end of the sliding seat 21 , the back guide groove 122 and the back rolling groove 123 are both arc-shaped groove structures corresponding to the structure of the back guide rail 12 .

[0060] As shown in Figures 2 and 4, when the crossing roller 40 reaches the chair guide groove 112 from the back guide groove 122, the two rotating sleeves 432 are tangent to and abut against the two sides of the back connecting strip 52 in the width direction, and tangent to and abut against the two sides of the chair connecting strip 51 in the width direction in turn, so that the crossing roller 40 provides support force by abutting against the back connecting strip 52 and / or the chair connecting strip 51 through the rotating sleeves 432, so that it can smoothly pass through the rotation gap 13.

[0061] Since the back rolling groove 123 is an arc-shaped groove, and the second disc 41 is rotatably engaged with the rotating rod 23, when the crossing roller 40 slides in the back guide groove 122, the second disc 41 rotates relative to the rotating rod 23, causing the two rotating sleeves 432 to deviate from the preset position, thereby causing the rotating sleeve 432 to collide with the back connecting bar 52.

[0062] To solve the above problems, as shown in Figures 3, 6 and 7, a limiting portion 231 with a semi-cylindrical structure is formed on the protrusion of the end of the rotating rod 23, and a limiting hole 433 is opened in the middle position of the mounting plate 43. When the limiting portion 231 extends into the limiting hole 433 and the limiting portion 231 abuts against one side wall of the limiting hole 433, a deflection space 44 is formed between the limiting portion 231 and the opposite side wall for the mounting plate 43 to rotate.

[0063] The rotational travel of the mounting plate 43 in the deflection space 44 enables the gap between the two rotating sleeves 432 on the crossing roller 40 to be passed through by the back connecting bar 52 or the chair connecting bar 51, so that the crossing roller 40 can smoothly pass through the rotation gap 13 and enter the chair guide groove 112 through the cooperation between the two rotating sleeves 432 and the back connecting bar 52.

[0064] As shown in Figures 2 and 4, a shielding plate 124 is provided between the back rail 12 and the seat rail 11 to conceal the winding notch. Preferably, the shielding plate 124 is integrally formed at the end of the back rail 12 facing the seat rail 11. A clearance cavity 114 is provided on the end of the seat rail 11 facing the back rail 12 to accommodate the shielding plate 124. When the back rail 12 and the seat rail 11 are in their initial positions, the shielding plate 124 is completely located within the clearance cavity 114. When the back rail 12 is rotated to its maximum angle relative to the seat rail 11, the shielding plate 124 extends completely out of the clearance cavity 114 and conceals the winding notch 13.

[0065] The present application provides a method for using a massage chair with a flexible guide rail structure, comprising the following steps:

[0066] S1: The sliding seat 21 drives the massage mechanism 20 to move toward the rotating notch 13;

[0067] S2: The two rotating sleeves 432 are slid apart and placed on both sides of the back connecting bar 52 and / or the chair connecting bar 51. The back connecting bar 52 and the chair connecting bar 51 provide support for the rotating sleeves 432, so that the end of the massage mechanism 20 that crosses the roller 40 can smoothly pass through the rotation gap 13.

[0068] S3: The end of the crossing roller 40 of the massage movement 20 crosses the rotation gap 13 and is located between the chair guide rail 11 and the back guide rail 12 to massage the human body part at that position and eliminate the massage blind spot.

[0069] The foregoing description is merely a preferred embodiment of the present invention and is not intended to limit the present invention. Those skilled in the art will readily appreciate that various modifications and variations are possible. Any modifications, equivalent substitutions, or improvements made within the spirit and principles of the present invention are intended to be within the scope of protection of the present invention.

Claims

1. A massage chair with a flexible guide rail structure, characterized in that: The invention comprises two guide rail bodies (10) arranged on the left and right, wherein the guide rail body (10) comprises a horizontally arranged chair guide rail (11) and a back guide rail (12) rotatably matched with the chair guide rail (11), and a rotation notch (13) is formed between the chair guide rail (11) and the back guide rail (12); Also includes: The hinge assembly (50) comprises a chair connecting strip (51) fixed to the inner side of the rear end of the chair guide rail (11) and a back connecting strip (52) fixed to the inner side of the bottom of the back guide rail (12) and rotatably matched with the chair connecting strip (51); a massage movement (20), the massage movement (20) being located between the two guide rail bodies (10), the lower end of the massage movement (20) being provided with a sliding seat (21), and the two ends of the sliding seat (21) facing the rotating notch (13) being provided with crossing rollers (40) slidably fitted on the back guide rail (12) and / or the chair guide rail (11); When the crossing roller (40) crosses the rotation gap (13), the two rotating sleeves (432) are located in a gap between the two for the back connecting strip (52) or the chair connecting strip (51) to pass through, and the two rotating sleeves (432) are disposed on both sides of the back connecting strip (52) or the chair connecting strip (51) in a width direction, so as to provide support force for the crossing roller (40) to cross the rotation gap (13).

2. The massage chair with a flexible guide rail structure according to claim 1, characterized in that: The sliding seat (21) is rotatably matched with a travel gear (221) at both ends of one side of the sliding seat (21) relative to the roller (40), and chair racks (111) for meshing with the travel gear (221) are arranged on the inner sides of the two chair guide rails (11).

3. The massage chair with a flexible guide rail structure according to claim 1, characterized in that: The sliding seat (21) is rotatably matched with a travel gear (221) at both ends of one side of the sliding seat (21) relative to the roller (40), and the two back guide rails (12) are provided with back racks (121) for meshing with the travel gear (221) on the inner sides facing each other.

4. The massage chair with a flexible guide rail structure according to claim 1, characterized in that: One end of the chair connecting strip (51) away from the back connecting strip (52) comprises a chair guide surface (512) for each rotating sleeve (432) to slide open and be arranged on both sides of the width direction of the chair connecting strip (51); and one end of the back connecting strip (52) away from the chair connecting strip (51) comprises a back guide surface (522) for each rotating sleeve (432) to slide open and be arranged on both sides of the width direction of the back connecting strip (52).

5. The massage chair with a flexible guide rail structure according to claim 1, characterized in that: The two back guide rails (12) are provided with back guide grooves (122) on the inner sides facing each other for sliding engagement with the crossing roller (40); and the two chair guide rails (11) are provided with chair guide grooves (112) on the inner sides facing each other for sliding engagement with the crossing roller (40).

6. The massage chair with a flexible guide rail structure according to claim 5, characterized in that: A back rolling groove (123) for slidingly engaging the two rotating sleeves (432) is provided at the bottom of the back guide groove (122); and a chair rolling groove (113) for slidingly engaging the two rotating sleeves (432) is provided at the bottom of the chair guide groove (112).

7. The massage chair with a flexible guide rail structure according to claim 1, characterized in that: A rotating rod (23) is disposed on one side of the sliding seat (21) perpendicular to the sliding direction and is rotatably matched with the crossing roller (40); a limiting portion (231) is provided at the end of the rotating rod (23); the crossing roller (40) has a limiting hole (433) for the limiting portion (231) to extend into; a deflection space (44) for the crossing roller (40) to rotate is formed between the hole wall of the limiting hole (433) and the surface of the limiting portion (231); the rotation stroke of the crossing roller (40) in the deflection space (44) enables the two rotating sleeves (432) on the crossing roller (40) to be located in a gap between the two so as to allow the back connecting strip (52) or the chair connecting strip (51) to pass through.

8. The massage chair with a flexible guide rail structure according to claim 1, characterized in that: A shielding plate (124) for shielding the rotation gap (13) is provided between the back guide rail (12) and the chair guide rail (11).

9. The massage chair with a flexible guide rail structure according to claim 1, characterized in that: The distance between the two rotating sleeves (432) is greater than or equal to the width of the chair connection strip (51) and the width of the back connection strip (52).

10. A method for using a massage chair with a flexible guide rail structure as claimed in claims 2 to 9, comprising the following steps: S1: The sliding seat (21) drives the massage movement (20) to move toward the rotating notch (13); S2: The two rotating sleeves (432) are slid apart and placed on both sides of the back connecting strip (52) and / or the chair connecting strip (51), and the back connecting strip (52) and the chair connecting strip (51) provide support force for the rotating sleeve (432), so that the end of the massage movement (20) that crosses the roller (40) can smoothly pass through the rotation gap (13); S3: The end of the spanning roller (40) of the massage movement (20) spans over the rotation gap (13) and is located between the chair guide rail (11) and the back guide rail (12), so as to massage the human body part at that position and eliminate the massage blind spot.

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