A multifunctional waist and leg stretching massage chair frame

Abstract

The present invention discloses a multifunctional waist and leg stretching massage chair frame, comprising a chair seat, a sitting frame, a sitting frame driving component, a calf frame, and a calf frame driving component. The calf frame is provided with a leg twisting frame and a foot stretching frame, the calf frame is provided with a twisting mechanism and a foot stretching driving component, the foot stretching frame is provided with a foot clamping component, the sitting frame is provided with a telescopic lowering frame and a telescopic lowering driving component, the calf frame is rotatably set on the telescopic lowering frame, the sitting frame comprises a cushion frame and a backrest frame, and also includes an arm fixing component for fixing the arms to limit the upper body from sliding down, and a hip clamping component for pressing the hips to limit the deviation of the buttocks is further provided at a position corresponding to the cushion frame on the chair seat, which can perform a stretching and muscle-pulling function on the legs and the waist, and the cooperation of the arm fixing component and the hip clamping component can prevent the upper body and buttocks from deviating, thereby achieving a better effect when stretching the legs and waist.

Description

Technical Field

[0001] The present invention relates to the technical field of massagers, in particular to a multifunctional waist and leg stretching massage chair frame. Background Art

[0002] In the existing technology, massage chairs have expanded many massage functions from traditional massage movement walking massage, such as calf stretching, calf twisting and stretching, etc. However, both calf stretching and twisting will pull the upper body and buttocks down relative to the massage chair, resulting in poor massage effect. In addition, in order to allow the calf to twist and stretch normally, it is necessary to set a twisting mechanism at the calf frame position. When lying flat, the calf part will be highly suspended, so that most of the force is applied to the buttocks and waist, resulting in a poor massage experience. Summary of the Invention

[0003] Purpose of the invention: In order to overcome the defects of the prior art, the present invention provides a multifunctional waist and leg stretching massage chair frame, which can stretch and pull the muscles of the legs, as well as the waist, and can prevent the upper body and buttocks from shifting through the cooperation of the arm fixing parts and the hip clamping parts, so that the effect of stretching the legs and waist is better.

[0004] The present invention discloses a multifunctional waist and leg stretching massage chair frame, comprising a chair seat, a sitting frame that can be rotated and laid down relative to the chair seat, a sitting frame driving member that drives the sitting frame to lie down, a calf frame that can be rotated and lifted relative to the sitting frame, and a calf frame driving member that drives the calf frame to rotate and lift. The calf frame is provided with a leg twisting frame and a foot stretching frame. The calf frame is also provided with a twisting mechanism for driving the leg twisting frame to twist and a foot stretching driving assembly for driving the foot stretching frame to relatively stretch and retract. The foot stretching frame is provided with a foot clamping member for clamping the foot, which is characterized in that: the sitting frame is provided with a telescopic lowering frame and a telescopic lowering driving assembly that drives the telescopic lowering frame to be extended and lowered, the calf frame is rotatably arranged on the telescopic lowering frame, the sitting frame comprises a seat cushion frame and a backrest frame, and also comprises an arm fixing member for fixing arms to limit the upper body from sliding down, and a hip clamping member for pressing the hip to limit the displacement of the hip is also provided at a position corresponding to the seat cushion frame on the chair seat.

[0005] By adopting the above technical solution, when in use, the sitting and lying states can be switched by adjusting the seat frame and the calf frame, and the leg twisting and swinging frame can be driven to twist and swing through the twisting and swinging mechanism to achieve the effect of stretching the calf muscles, and the foot stretching drive component can drive the foot stretching frame to extend and retract, and then clamp it through the foot clamping piece, so as to achieve the effect of stretching and stretching the calf muscles. The further telescopic and lowering drive component can drive the telescopic and lowering frame to extend and retract and rise and fall, and the height position of the calf frame can be further adjusted to avoid the user's legs from being suspended in the air, so that the legs bear part of the gravity, reduce the force on the buttocks and waist, and have higher comfort. It can stretch and stretch the legs and the waist, and the cooperation of the arm fixing piece and the hip clamping piece can prevent the upper body and buttocks from being offset, so that the effect is better when stretching the legs and waist.

[0006] The present invention is further provided with: the telescopic lowering and retracting frame includes a mounting frame, a lifting frame and a telescopic frame slidingly arranged on the lifting frame; the telescopic lowering and retracting drive assembly includes a supporting rocker arm, a lifting drive member and a telescopic drive member; one end of the supporting rocker arm is hingedly arranged on the mounting frame, and the other end is hingedly arranged on the lifting frame; and there are at least two groups of supporting rocker arms, and the two groups of supporting rocker arms are respectively located on opposite sides of the lifting frame, and each group of supporting rocker arms is provided with at least two; the mounting frame is arranged on the seat frame, and the telescopic drive member and the lifting drive member are both arranged on the mounting frame; the telescopic drive member can drive the telescopic frame to slide relative to the lifting frame.

[0007] By adopting the above technical solution, when in use, the lifting drive component can drive the lifting frame to swing along the supporting rocker arm, thereby realizing the lifting function. Furthermore, the telescopic drive component can drive the telescopic frame to extend and retract, thereby stretching the muscles at the thigh and waist positions.

[0008] The present invention is further provided with: the arm fixing part includes a connecting head and a strap, one end of the strap is fixedly set on the seat or backrest frame, and the other end is adjustably passed through the connecting head to form a strap loop, and the hip clamping part is a hip positioning airbag with an inflation and deflation port, and the hip positioning airbags are provided with at least two groups and are located on opposite sides of the seat cushion frame, and the hip positioning airbags are tilted on the seat and can be tilted and extended to achieve clamping.

[0009] By adopting the above technical solution, the shoulder strap loop is formed to facilitate the user's arms to pass through, so that force is applied to the shoulder strap loop to prevent the upper body from sliding down. Furthermore, the shoulder strap loop is adjustable to suit users with different arm thicknesses, and through the cooperation of the shoulder strap loop and the hip positioning airbag, the human body can be made to fit the seat frame, thereby making it more effective during massage, and the hip positioning airbag is used to press the hips to provide soft contact and prevent injury to the user.

[0010] Further configuration of the present invention: the torsion and swing mechanism includes a connecting rod group, an eccentric wheel and a torsion and swing driving member, the connecting rod group includes a first connecting rod group and a second connecting rod group, and the first connecting rod group and the second connecting rod group are arranged on opposite sides of the eccentric wheel, and there are several first connecting rod groups and second connecting rod groups arranged side by side, the first connecting rod group and the second connecting rod group both include a first connecting rod and a second connecting rod that are hingedly arranged, the end of the first connecting rod away from the second connecting rod is hingedly arranged on the calf frame, the end of the second connecting rod away from the first connecting rod is hingedly arranged on the leg torsion and swing frame, a transmission rod is provided on the eccentric wheel, and the end of the transmission rod away from the eccentric wheel is directly or indirectly pulled at the hinge of the first connecting rod and the second connecting rod, and a calf receiving cavity for the calf to enter is provided on the leg torsion and swing frame.

[0011] By adopting the above technical solution, the eccentric wheel rotates and the hinge of the first connecting rod and the second connecting rod is further pulled by the transmission rod, so that the first connecting rod group and the second connecting rod group can be driven to fold back and forth, thereby driving the leg twisting and swinging frame to twist and swing. In addition, by adopting this twisting and swinging method, the center of the circle moves upward, which prevents the calf from being compressed and rotated downward when swinging and twisting the hips, and the massage effect is better.

[0012] Further configuration of the present invention: the torsion mechanism includes a connecting rod group and a hip-twisting airbag, the connecting rod group includes a first connecting rod group and a second connecting rod group, and several first connecting rod groups and second connecting rod groups are arranged side by side. The first connecting rod group and the second connecting rod group both include a first connecting rod and a second connecting rod that are hingedly arranged, and the end of the first connecting rod away from the second connecting rod is hingedly arranged on the calf frame, and the end of the second connecting rod away from the first connecting rod is hingedly arranged on the leg torsion frame. Two groups of hip-twisting airbags are arranged, one group is arranged at the position of the first connecting rod group, and the other group is arranged at the position of the second connecting rod group, and the leg torsion frame is provided with a calf receiving cavity for the calf to enter.

[0013] By adopting the above technical solution, the two groups of hip-twisting airbags are reciprocally inflated, and the first connecting rod group and the second connecting rod group cooperate to drive the reciprocating twisting and swinging of the leg twisting and swinging frame. In addition, by adopting this twisting and swinging method, the center of the circle moves upward, which prevents the calf from being compressed and rotated downward when swinging the hip, and the massage effect is better.

[0014] The present invention is further configured as follows: the telescopic frame is further provided with an extension frame extending forward and upward, the calf frame is extendedly mounted on the telescopic frame, and the calf frame driving member is also arranged on the extension frame.

[0015] With the above technical solution, the relative rotation of the calf frame requires an avoidance space, and the extension frame can facilitate the installation of the calf frame and the calf frame driving component, and also facilitate the movement of the calf frame.

[0016] The present invention is further configured as follows: the extension frame part extends to the position of the cushion frame. When the telescopic frame drives the extension frame to extend, the length of the cushion frame can be extended to achieve a longer seat depth. When the telescopic frame drives the extension frame to retract, the seat depth can be shortened.

[0017] By adopting the above technical solution, it is possible to further meet the needs of customers with different leg lengths and make the use more comfortable.

[0018] Further configuration of the present invention: a guide rail is provided on the lifting frame, the telescopic frame slides on the guide rail, the telescopic driving part is an electric push rod, the electric push rod is hingedly set on the telescopic frame, the output end of the electric push rod is hingedly set on the lifting frame, and a guide groove is provided on the telescopic frame at the position corresponding to the guide rail, and a ball is provided between the guide rail and the inner wall of the guide groove to reduce friction.

[0019] By adopting the above technical solution, the guidance of the guide rail can make the telescopic frame more stable when extending and retracting, and the hinged setting can facilitate the installation of the electric push rod and the adaptive change of the angle of the electric push rod during operation. The use of ball bearings can reduce the friction when the telescopic frame slides and reduce noise.

[0020] The present invention is further configured as follows: a plurality of balls are arranged along the length direction of the guide rail, and the notch of the guide groove is bent to form a limit plate, the ball is located above the limit plate, and a blocking plate is provided on the guide rail above the ball, and the blocking plate and the limit plate are clamped on opposite sides of the ball.

[0021] By adopting the above technical solution, setting up multiple ball bearings can increase the stability of the structure, and the cooperation of the blocking plate, the limit plate and the inner wall of the guide groove can prevent the ball bearings from deviating, and the limit plate can be hooked under the ball bearings, and the blocking plate can prevent the telescopic frame from detaching from the guide rail when sliding.

[0022] The present invention is further configured such that the backrest frame can be rotated relative to the seat cushion frame to lie down to form a lying flat state.

[0023] By adopting the above technical solution, the user can lie flat and further extend the telescopic frame to perform a deep stretch or exercise on the waist. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] Figure 1 This is a schematic diagram of the application structure of the present invention;

[0025] Figure 2 This is a schematic diagram of the structure of the shoulder strap and connector of the present invention;

[0026] Figure 3 It is a partial structural diagram of the present invention;

[0027] Figure 4 for Figure 3 Schematic diagram of the structure when lying down;

[0028] Figure 5 This is a diagram showing the coordination of the lifting frame and telescopic frame of the present invention;

[0029] Figure 6 This is a schematic diagram of the positions of the lifting drive member and the telescopic drive member of the present invention;

[0030] Figure 7 This is a diagram showing the coordination between the mounting base and the lifting frame of the present invention;

[0031] Figure 8 for Figure 6 Enlarged view of part a;

[0032] Figure 9 This is a schematic structural diagram of the present invention using an eccentric wheel to drive the first connecting rod group and the second connecting rod group;

[0033] Figure 10 for Figure 9 Another perspective structural diagram;

[0034] Figure 11 for Figure 9 Another perspective structural diagram;

[0035] Figure 12 This is a schematic diagram of the structure of the present invention having two parallel groups of first connecting rod groups and second connecting rod groups;

[0036] Figure 13 This is a schematic diagram of the position of the foot stretching drive component of the present invention;

[0037] Figure 14 This is a structural diagram of the present invention using an airbag to drive the first connecting rod group and the second connecting rod group to move;

[0038] Figure 15 for Figure 14 Enlarged view of part b. DETAILED DESCRIPTION

[0039] The following describes the specific embodiments of the present invention in detail with reference to the accompanying drawings:

[0040] In the description of the present invention, it should be understood that the terms "upper", "lower", "bottom", "top", "front", "back", "inside", "outside", "left", "right", etc., indicating directions or positional relationships, are based on the directions or positional relationships shown in the accompanying drawings. They are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific direction, be constructed and operated in a specific direction. Therefore, they cannot be understood as limiting the present invention. The driving parts designed in this article are most preferably electric push rods, and of course motors or cylinders can also be used.

[0041] The present invention discloses a multifunctional waist and leg stretching massage chair frame, which includes a chair seat 1, a seat frame 2 that can be rotated and reclined relative to the chair seat 1, a seat frame driving member 3 that drives the seat frame 2 to lie down, a calf frame 4 that can be rotated and lifted relative to the seat frame 2, and a calf frame driving member 5 that drives the calf frame 4 to rotate and lift, the calf frame 4 is provided with a leg twisting frame 41 and a foot stretching frame 42 (the foot stretching frame 42 is most preferably provided with a massage head, which is driven by a motor, a rotating shaft, etc. to perform kneading massage or percussion massage), the calf frame 4 is also provided with a twisting mechanism 43 for driving the leg twisting frame 41 to twist and swing, and a foot stretching driving assembly 44 for driving the foot stretching frame 42 to relatively extend and retract (the foot stretching driving assembly 44 It is most preferred to use a motor and a bolt, which cooperate with the foot stretching frame 42 through the bolt to drive the foot to be stretched). The foot stretching frame 42 is provided with a foot clamping member for clamping the foot (the foot clamping member is not shown in the figure, and an airbag is most preferred). In the embodiment of the present invention, the seat frame 2 is provided with a telescopic lowering frame 6 and a telescopic lowering drive assembly 7 for driving the telescopic lowering frame 6 to extend and lower. The calf frame 4 is rotatably set on the telescopic lowering frame 6. The seat frame 2 includes a seat cushion frame 21 and a backrest frame 22, and also includes an arm fixing member 8 for fixing the arm to limit the upper body from sliding down. The seat 1 is also provided with a hip clamping member 9 for pressing the hip to limit the displacement of the hips at the position corresponding to the seat frame 2.

[0042] By adopting the above technical solution, when in use, the sitting and lying states can be switched by adjusting the seat frame 2 and the calf frame 4, and the leg twisting and swinging frame 41 can be driven to twist and swing through the twisting and swinging mechanism 43 to achieve the effect of stretching the calf muscles, and the foot stretching drive component 44 drives the foot stretching frame 42 to extend and retract, and then clamps it through the foot clamping member, so as to achieve a stretching and stretching effect on the calf muscles. Further, the telescopic and lowering drive component 7 can drive the telescopic and lowering frame 6 to extend and retract and rise and fall, and further adjust the height position of the calf frame 4 to avoid the user's legs from being suspended in the air, so that the legs bear part of the gravity, reduce the force on the buttocks and waist, and have higher comfort. It can not only stretch and stretch the legs, but also stretch and stretch the waist, and the cooperation of the arm fixing member 8 and the hip clamping member 9 can prevent the upper body and buttocks from being offset, so that the effect is better when stretching the legs and waist.

[0043] The telescopic lowering and retracting frame 6 includes a mounting frame 61, a lifting frame 62 and a telescopic frame 63 slidably arranged on the lifting frame 62, and the telescopic lowering and retracting drive assembly 7 includes a support rocker 71, a lifting drive member 72 and a telescopic drive member 73. One end of the support rocker 71 is hingedly arranged on the mounting frame 61, and the other end is hingedly arranged on the lifting frame 62, and the support rocker 71 is provided with at least two groups, and the two groups of support rocker links 71 are respectively located on the opposite sides of the lifting frame 62, and each group of support rocker links 71 is provided with at least two. The mounting frame 61 is provided on the seat frame 2, and the telescopic drive member 73 and the lifting drive member 72 are both provided on the mounting frame 61. The telescopic drive member 73 can drive the telescopic frame 63 to slide relative to the lifting frame 62. When in use, the lifting frame 62 can be driven by the lifting drive member 72 to swing along the support rocker 71, thereby realizing the lifting function. Further, the telescopic drive member 73 can drive the telescopic frame 63 to extend and retract, which can stretch the muscles at the thigh and waist positions.

[0044] The arm fixing member 8 includes a connector 81 and a strap 82. One end of the strap 82 is fixedly arranged on the seat 1 or the backrest frame 22, and the other end is adjustably passed through the connector 81 to form a strap loop. The hip clamping member 9 is a hip positioning airbag with an inflation and deflation port (of course, the hip clamping member 9 is preferably also tightened by a pressure plate and a telescopic drive member, and of course an airbag can also be provided on the pressure plate). There are at least two groups of hip positioning airbags, which are located on opposite sides of the cushion frame 21, and the hip positioning airbags are tilted on the seat 1 and can be tilted out to form a hip positioning airbag. The shoulder strap is now clamped, and the formation of a shoulder strap loop makes it easy for the user's arm to pass through, thereby applying force to the shoulder strap loop to prevent the upper body from sliding down. The shoulder strap loop is further adjustable to suit users with different arm thicknesses (the shoulder strap loop can be adjusted in the same way as a schoolbag strap or by a lock buckle). Moreover, through the cooperation of the shoulder strap loop and the hip positioning airbag, the human body can be made to fit the seat frame 2, thereby achieving a better massage effect. The hip positioning airbag is used to press the hip to provide soft contact and prevent injury to the user.

[0045] The torsion swing mechanism 43 includes a connecting rod group 431, an eccentric wheel 432 and a torsion swing driving member 433, the connecting rod group 431 includes a first connecting rod group 4311 and a second connecting rod group 4312, and the first connecting rod group 4311 and the second connecting rod group 4312 are arranged on opposite sides of the eccentric wheel, and a plurality of the first connecting rod group 4311 and the second connecting rod group 4312 are arranged side by side, the first connecting rod group 4311 and the second connecting rod group 4312 both include a first connecting rod 10 and a second connecting rod 20 that are hingedly arranged, the end of the first connecting rod 10 away from the second connecting rod 20 is hingedly arranged on the calf frame 4, the end of the second connecting rod 20 away from the first connecting rod 10 is hingedly arranged on the leg torsion swing frame 41, the eccentric wheel 432 is provided with a transmission rod 30, the transmission rod One end of 30 away from the eccentric wheel 432 is directly or indirectly pulled at the hinge of the first link 10 and the second link 20 (most preferably, the first link 10 and the second link 20 of the first link group 4311 are hinged by a hinge shaft, and the first link 10 and the second link 20 of the second link group 4312 are hinged by a hinge shaft, and further the transmission rod 30 cooperates with the hinge shaft to drive the whole), and a calf receiving cavity 411 for the calf to enter is provided on the leg torsion frame 41, and the eccentric wheel 432 is rotated, and the hinge of the first link 10 and the second link 20 is further pulled by the transmission rod 30, so that the first link group 4311 and the second link group 4312 can be driven to fold back and forth, thereby driving the leg torsion. The swing frame 41 is twisted and swung, and the center of the circle moves upward in this twisting and swung manner, which prevents the calf from being compressed and rotated downward when the hip is swung and twisted, and has a better effect during massage. It is most preferred that the first connecting rod group 4311 and the second connecting rod group 4312 are arranged in two groups in parallel, and the first connecting rod 10 and the second connecting rod 20 are prevented from being excessively folded in half, which can play a protective limiting role. Of course, the twisting and swung mechanism 43 can also include a connecting rod group 431 and a hip twisting airbag 434, and the connecting rod group 431 includes a first connecting rod group 4311 and a second connecting rod group 4312, and the first connecting rod group 4311 and the second connecting rod group 4312 are both arranged side by side. The first connecting rod group 4311 and the second connecting rod group 4312 both include a hinged first connecting rod 10 and The second link 20 and the first link 10 are hingedly arranged on the calf frame 4 at one end away from the second link 20, and the second link 20 is hingedly arranged on the leg twisting frame 41 at one end away from the first link 10. There are two groups of hip twisting airbags 434, one group is arranged at the position of the first link group 4311, and the other group is arranged at the position of the second link group 4312. A calf receiving cavity 411 for the calf to enter is provided on the leg twisting frame 41. The reciprocating inflation of the two groups of hip twisting airbags 434 and the cooperation of the first link group 4311 and the second link group 4312 can drive the reciprocating twisting of the leg twisting frame 41. By adopting this twisting method, the center of the circle moves upward, and the compression of the calf downward rotation is prevented when the hip is swung, and the massage effect is better.

[0046] The telescopic frame 63 is also provided with an extension frame 631 extending forward and upward. The calf frame 4 is arranged on the telescopic frame 63 via the extension frame 631. The calf frame driving component 5 is also arranged on the extension frame 631. The relative rotation of the calf frame 4 requires a space for avoidance. The extension frame 631 can facilitate the installation of the calf frame 4 and the calf frame driving component 5, and also facilitate the movement of the calf frame 4.

[0047] The extension frame 631 partially extends to the position of the cushion frame 21. When the telescopic frame 63 drives the extension frame 631 to extend, the length of the cushion frame 21 can be extended to increase the seat depth. When the telescopic frame 63 drives the extension frame 631 to retract, the seat depth can be shortened, which can further meet the needs of customers with different leg lengths and make them more comfortable to use.

[0048] The lifting frame 62 is provided with a guide rail 621, and the telescopic frame 63 slides on the guide rail 621. The telescopic driving member 73 is an electric push rod, which is hinged on the telescopic frame 63. The output end of the electric push rod is hinged on the lifting frame 62. A guide groove 632 is provided on the telescopic frame 63 corresponding to the guide rail 621. A ball 40 for reducing friction is also provided between the guide rail 621 and the inner wall of the guide groove 632. The guidance of the guide rail 621 can make the telescopic frame 63 more stable when it is extended and retracted, and the hinged setting can facilitate the installation of the electric push rod and the adaptive change of the angle of the electric push rod during operation. The use of the ball 40 can reduce the friction when the telescopic frame 63 slides and reduce noise.

[0049] There are several balls 40 arranged along the length direction of the guide rail 621, and the notch position of the guide groove 632 is bent to form a limit plate 6321. The ball 40 is located above the limit plate 6321. A blocking plate 50 is provided on the guide rail 621 above the ball 40. The blocking plate 50 and the limit plate 6321 are clamped on opposite sides of the ball 40. The arrangement of multiple balls 40 can increase the stability of the structure, and the ball 40 can be prevented from deviating through the cooperation of the blocking plate 50, the limit plate 6321 and the inner wall of the guide groove 632, and the limit plate 6321 can be hooked under the ball 40, and the blocking of the blocking plate 50 can prevent the telescopic frame 63 from separating from the guide rail 621 when sliding.

[0050] The backrest frame 22 can be rotated relative to the seat cushion frame 21 to form a lying flat state. Since the massage chair also needs to be installed with a walking movement for massage, the guide rail of the walking movement is most preferably a flexible guide rail. Through the lying flat state, the user can lie flat, and further extend the telescopic frame 63 to perform a deep stretch or exercise on the waist.

Claims

1. A multifunctional waist and leg stretching massage chair frame, comprising a chair seat (1), a seat frame (2) capable of rotating and lying down relative to the chair seat (1), a seat frame driving member (3) for driving the seat frame (2) to lie down, a calf frame (4) capable of rotating and lifting relative to the seat frame (2), and a calf frame driving member (5) for driving the calf frame (4) to rotate and lift, the calf frame (4) being provided with a leg twisting frame (41) and a foot stretching frame (42), the calf frame (4) being further provided with a twisting mechanism (43) for driving the leg twisting frame (41) to twist and swing, and a foot stretching driving assembly (44) for driving the foot stretching frame (42) to relatively extend and retract, the foot stretching frame (42) being provided with a foot clamping member for clamping the foot, and characterized in that: The seat frame (2) is provided with a telescopic lowering frame (6) and a telescopic lowering drive assembly (7) for driving the telescopic lowering frame (6) to extend and lower. The calf frame (4) is rotatably arranged on the telescopic lowering frame (6). The seat frame (2) includes a cushion frame (21) and a backrest frame (22), and also includes an arm fixing member (8) for fixing the arm to limit the upper body from sliding down. The seat (1) is also provided with a hip clamping member (9) for pressing the hip to limit the buttocks from deflecting at the corresponding position of the cushion frame (21). The telescopic lowering frame (6) includes a mounting frame (61), a lifting frame (62) and a telescopic frame (63) slidably arranged on the lifting frame (62). The telescopic lowering drive assembly (7) includes a support rocker (71), a lifting drive member (72) and a telescopic drive member (73). One end of the support rocker (71) is hingedly arranged on the mounting frame (61), and the other end is hingedly arranged on the lifting frame (62). The support rocker (71) is provided with a support rocker (71). At least two groups of support rockers (71) are provided, and the two groups of support rockers (71) are respectively located on opposite sides of the lifting frame (62), each group of support rockers (71) is provided with at least two, the mounting frame (61) is provided on the seat frame (2), the telescopic drive member (73) and the lifting drive member (72) are both provided on the mounting frame (61), the telescopic drive member (73) can drive the telescopic frame (63) to slide relative to the lifting frame (62), and the telescopic frame (63) is also provided with an extension extending forward and upward. The calf frame (4) is arranged on the telescopic frame (63) via the extension frame (631), and the calf frame driving member (5) is also arranged on the extension frame (631). The extension frame (631) partially extends to the position of the seat cushion frame (21). When the telescopic frame (63) drives the extension frame (631) to extend, the length of the seat cushion frame (21) can be extended to achieve a longer sitting depth. When the telescopic frame (63) drives the extension frame (631) to retract, the sitting depth can be shortened.

2. The multifunctional waist and leg stretching massage chair frame according to claim 1, characterized in that: The arm fixing member (8) includes a connector (81) and a shoulder strap (82), one end of the shoulder strap (82) is fixedly arranged on the seat (1) or the backrest frame (22), and the other end is adjustably passed through the connector (81) to form a shoulder strap loop, and the hip clamping member (9) is a hip positioning airbag with an inflation and deflation port, and the hip positioning airbags are provided in at least two groups and are located on opposite sides of the cushion frame (21), and the hip positioning airbags are tilted on the seat (1) and can be tilted and extended to achieve clamping.

3. A multifunctional waist and leg stretching massage chair frame according to claim 1 or 2, characterized in that: The torsion swing mechanism (43) includes a connecting rod group (431), an eccentric wheel (432) and a torsion swing driving member (433), wherein the connecting rod group (431) includes a first connecting rod group (4311) and a second connecting rod group (4312), and the first connecting rod group (4311) and the second connecting rod group (4312) are arranged on opposite sides of the eccentric wheel (432), and a plurality of the first connecting rod group (4311) and the second connecting rod group (4312) are arranged side by side, and the first connecting rod group (4311) and the second connecting rod group (4312) each include a first connecting rod group (4311) and a second connecting rod group (4312) which are hingedly arranged. A connecting rod (10) and a second connecting rod (20), one end of the first connecting rod (10) away from the second connecting rod (20) is hingedly arranged on the calf frame (4), one end of the second connecting rod (20) away from the first connecting rod (10) is hingedly arranged on the leg torsion frame (41), a transmission rod (30) is arranged on the eccentric wheel (432), one end of the transmission rod (30) away from the eccentric wheel (432) is directly or indirectly pulled at the hinge of the first connecting rod (10) and the second connecting rod (20), and a calf receiving cavity (411) for the calf to enter is provided on the leg torsion frame (41).

4. The multifunctional waist and leg stretching massage chair frame according to claim 1 or 2, characterized in that: The torsion swing mechanism (43) includes a connecting rod group (431) and a hip twisting airbag (434), wherein the connecting rod group (431) includes a first connecting rod group (4311) and a second connecting rod group (4312), wherein a plurality of the first connecting rod group (4311) and the second connecting rod group (4312) are arranged side by side, and each of the first connecting rod group (4311) and the second connecting rod group (4312) includes a first connecting rod (10) and a second connecting rod (20) which are hingedly arranged. One end of a connecting rod (10) away from the second connecting rod (20) is hingedly arranged on the calf frame (4), and one end of the second connecting rod (20) away from the first connecting rod (10) is hingedly arranged on the leg twisting frame (41). Two groups of hip twisting airbags are provided, one group is provided at the position of the first connecting rod group (4311), and the other group is provided at the position of the second connecting rod group (4312). A calf receiving cavity (411) for the calf to enter is provided on the leg twisting frame (41).

5. The multifunctional waist and leg stretching massage chair frame according to claim 1 or 2, characterized in that: The lifting frame (62) is provided with a guide rail (621), the telescopic frame (63) is guided and slid on the guide rail (621), the telescopic driving member (73) is an electric push rod, the electric push rod is hingedly provided on the telescopic frame (63), the output end of the electric push rod is hingedly provided on the lifting frame (62), and a guide groove (632) is provided on the telescopic frame (63) at a position corresponding to the guide rail (621), and a ball (40) for reducing friction is further provided between the guide rail (621) and the inner wall of the guide groove (632).

6. The multifunctional waist and leg stretching massage chair frame according to claim 5, characterized in that: A plurality of balls (40) are provided along the length direction of the guide rail (621), and the notch position of the guide groove (632) is bent to form a limit plate (6321). The ball (40) is located above the limit plate (6321). A blocking plate (50) is provided on the guide rail (621) above the ball (40). The blocking plate (50) and the limit plate (6321) are clamped on opposite sides of the ball (40).

7. The multifunctional waist and leg stretching massage chair frame according to claim 1 or 2, characterized in that: The backrest frame (22) can be rotated relative to the seat cushion frame (21) to lie flat.

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