Back pedaling machine

Abstract

The invention relates to the technical field of back-pedaling machines, in particular to a back-pedaling machine which comprises a machine body frame and a back-pedaling piece, and the back-pedaling piece is provided with an arch compensation pedal. The foot arch compensation pedal plate comprises a pedal plate body, wherein the pedal plate body is used for being connected with a pedal plate of the back pedal machine; the left pedal piece is arranged on the pedal body; the right treading piece is arranged on the pedal body, and the left treading piece and the right treading piece are arranged in a spaced mode; a left lifting piece is arranged in the left treading piece, a right lifting piece is arranged in the right treading piece, and the left lifting piece and the right lifting piece are both used for supporting the arch of a user; therefore, the foot arch of the user can be supported, the stress state of the foot in the back-stepping training process is optimized, the problems that due to an existing back-stepping machine pedal, the human body generates compensation and the thighbone rotates inwards are solved, the action stability in the training process can be improved, and the training effect is improved. And the problems of arches, hallux valgus, calcaneus valgus and valgus, hip shapes, leg shapes, large and small buttocks, long and short legs and the like can be corrected.

Description

Technical Field

[0001] The present application relates to the technical field of reverse pedaling machines, and in particular to a reverse pedaling machine. Background Art

[0002] The leg press machine is a widely used fitness equipment in gyms, designed specifically for strengthening the lower limb muscles. It uses the slope principle to allow users to perform repeated leg push-ups through the pedals. In this process, the quadriceps on the front of the thigh, the biceps on the back of the thigh, the calf muscles and the buttocks muscles can all be fully and evenly trained. The leg press machine can not only help improve the strength and endurance of the leg muscles, but also effectively improve the leg lines and shape a tight and powerful lower limb contour.

[0003] However, the pedals of the existing reverse pedaling machines are arranged in a flat structure. When the user's feet are trained on the pedals, the user's arch of the foot will collapse under the action of pressure; when the arch of the foot collapses, the human body will continuously produce compensation, causing the tibia of the calf to rotate inward, the patella to move inward, and the femur of the thigh to rotate inward.

[0004] Therefore, the prior art has defects and deficiencies and needs further improvement and development. Summary of the invention

[0005] In view of the above-mentioned deficiencies in the prior art, the purpose of the present application is to provide a backward pedaling machine, aiming to solve the problem that the headrest of the existing backward pedaling machine cannot be adjusted in the up and down directions.

[0006] The technical solution adopted by the present application to solve the technical problem is as follows: a back pedaling machine, used for back pedaling training of users, comprising:

[0007] A fuselage frame, wherein the fuselage frame is provided with a first frame and a second frame, wherein the first frame and the second frame are fixedly connected via a plurality of cross beams; the first frame and the second frame both include a bending member and a track member, wherein the track member is fixedly connected to both ends of the bending member, and the sides of the track member are both provided with sliding grooves;

[0008] A reverse pedal, both ends of which are slidably arranged in the sliding groove, and the reverse pedal is provided with an arch compensation pedal;

[0009] A backrest is also provided between the bending parts, one end of the backrest is rotatably connected to the fuselage frame, and the other end of the backrest is provided with an adjustable headrest; a legrest is also provided below the track part, and a sacrum protrusion is provided on the legrest;

[0010] Among them, the arch compensation foot pedal includes: a pedal body, which is used to connect with the pedal of the inverted pedal machine; a left pedal, which is arranged on the pedal body; a right pedal, which is arranged on the pedal body, and the left pedal and the right pedal are arranged at intervals; a left lifting member is arranged in the left pedal, and a right lifting member is arranged in the right pedal, and the left lifting member and the right lifting member are both used to provide support for the user's arch.

[0011] Optionally, the arch compensation pedal comprises:

[0012] The horizontal cross section of the left pedal is set to be in the shape of a left sole, the horizontal cross section of the right pedal is set to be in the shape of a right sole, the left lifting member is set at the left arch of the left sole, and the right lifting member is set at the right arch of the right sole;

[0013] The left lifting member comprises: a left main body, the left main body is fixedly arranged below the left pedal; a left lifting block, the left lifting block is arranged above the left main body;

[0014] A left lifting knob, the left lifting knob is arranged on the side of the left main body; the left lifting knob is used to adjust the height of the left lifting block; the right lifting member comprises: a right main body, the right main body is fixedly arranged below the right pedal; a right lifting block, the right lifting block is arranged above the right main body; a right lifting knob, the right lifting knob is arranged on the side of the right main body; the right lifting knob is used to adjust the height of the right lifting block;

[0015] The left arch of the foot is provided with a left lifting through hole, and the left lifting block is telescoped up and down in the left lifting through hole;

[0016] The right arch of the foot is provided with a right lifting through hole, and the right lifting block is telescoped up and down in the right lifting through hole.

[0017] Optionally, a fixing portion is provided on the pedal body, and the fixing portion is used to fix the rotating shafts of the left pedal and the right pedal;

[0018] The pedal body is also provided with a space-avoiding groove, and the space-avoiding groove is arranged on the edge of the fixing part;

[0019] The left lifting member and the right lifting member are both arranged in the air-avoiding groove, and when the left lifting member rotates clockwise along the rotating shaft of the left pedal member, the left lifting member does not contact the groove wall of the air-avoiding groove; when the right lifting member rotates counterclockwise along the rotating shaft of the right pedal member, the right lifting member does not contact the groove wall of the air-avoiding groove;

[0020] The left pedal comprises a left toe portion and a left sole portion, a left latch is provided at the end of the left toe portion, and the left latch is used to fix the rotation angle of the left pedal;

[0021] The right pedal includes a right toe portion and a right sole portion, and a right latch is provided at the end of the right toe portion, and the right latch is used to fix the rotation angle of the right pedal; a plurality of angle grooves are provided on the pedal body, and a plurality of the angle grooves are arranged on the periphery of the left sole portion and the right sole portion, and the plurality of angle grooves can be engaged and fixed with the right latch and the left latch.

[0022] Optionally, the backrest is configured as an angle-adjustable backboard, and the angle-adjustable backboard includes:

[0023] A back plate body, the back plate body being used for rotationally connecting with the back pedal machine;

[0024] A support plate, the support plate is used to be connected to the body of the back pedal machine; the support plate is arranged below the back plate body;

[0025] A lifting member, one end of which is fixedly disposed on the support plate, and the other end of which abuts against the back plate body;

[0026] The backboard body is provided with a back-lying end and an abutting end which are arranged opposite to each other, the back-lying end is used for a user to lie down, and the abutting end is used to abut against the lifting member;

[0027] The abutting end is provided with an abutting groove, and the other end of the lifting member abuts on the abutting groove.

[0028] Optionally, the longitudinal cross-section of the abutment groove is set to be semicircular, semi-arc or arched, and the mouth of the abutment groove is set away from the back-lying end; the lifting member includes:

[0029] A lifting base, the lifting base is fixedly arranged on the support plate; the lifting base is provided with a lifting hole;

[0030] A lifting rod, the lifting rod is arranged in the lifting hole, and the lifting rod is telescopically moved up and down under the constraint of the lifting hole;

[0031] The top end of the lifting rod is provided with an abutment member, and the abutment member is configured as a sphere or a hemisphere;

[0032] When the lifting rod is telescopically moved up and down, the abutment member slides in the abutment groove to achieve angle adjustment of the back panel body.

[0033] Optionally, a rocker arm is provided on the side wall of the lifting base, and a plurality of scale grooves are provided on the rocker arm;

[0034] Among them, by shaking the rocker arm, the lifting rod is driven to move up and down, thereby driving the abutment member to slide in the abutment groove to achieve the angle adjustment of the backboard body; a backboard groove is arranged on the back lying end, and a plurality of backboard plates are arranged at intervals in the backboard groove; the backboard plates are arranged in two or four pieces, and an adjustment member is arranged under the backboard plate; the longitudinal section of the back lying end is arranged in an arc shape or a curved shape.

[0035] Optionally, the backrest is configured as a backboard with an adjustable left-right angle, and the backboard with an adjustable left-right angle includes:

[0036] A rotating shaft connection part, the rotating shaft connection part is used for rotationally connecting with the inverted pedal machine;

[0037] A back plate body, the back plate body being connected to the rotating shaft connecting portion;

[0038] A support plate, the support plate is used to be connected to the back pedal machine body; the support plate is arranged below the back plate body;

[0039] A left and right transverse member, one end of which is fixedly arranged on the support plate, and the other end of which abuts against the back plate body; the back plate body is provided with a back-lying end and an abutting end which are arranged oppositely, the back-lying end is used for the user to lie down, and the abutting end is used to abut against the left and right transverse members;

[0040] The abutting end is provided with an abutting groove, and the other end of the left and right transverse moving members abuts on the abutting groove; the longitudinal cross section of the abutting groove is set to be semicircular, semi-arc or arched, and the mouth of the abutting groove is set away from the back-lying end;

[0041] The transverse cross section of the abutment groove is set to be semi-arc-shaped or arch-shaped; the left and right transverse moving members include:

[0042] A fixed base, the fixed base is fixedly arranged on the support plate;

[0043] A left and right lateral shift seat, the fixed base is engaged with the left and right lateral shift seat; the left and right lateral shift seat is provided with an abutment rod; the top end of the abutment rod is provided with an abutment member, and the abutment member is provided as a sphere or a hemisphere;

[0044] When the left-right lateral displacement seat moves left-right, the abutment rod is driven to move left-right, and the abutment member slides left-right in the abutment groove to adjust the left-right angle of the back plate body; a knob member is provided on the side wall of the fixed base, and a plurality of scale marks are provided on the knob member;

[0045] The left and right lateral shift seats are driven to move left and right by twisting the knob, and the abutment members are driven to slide in the abutment grooves, so that the left and right angles of the back panel body can be adjusted.

[0046] Optionally, the adjustable headrest comprises:

[0047] A headrest body, wherein the headrest body is detachably connected to a back plate of the inverted pedaling machine;

[0048] A front-to-back moving assembly, wherein the front-to-back moving assembly is fixedly disposed on the headrest body;

[0049] An up-and-down moving assembly, wherein the up-and-down moving assembly is fixedly arranged on the front-and-rear moving assembly;

[0050] A headrest portion, the headrest portion is arranged on the up-and-down moving assembly; a fixed base, the fixed base is fixedly connected to the headrest body;

[0051] A forward and backward movable slide, the forward and backward movable slide is slidably connected to the fixed base; a wedge protrusion is arranged on a side of the fixed base away from the headrest body, and the transverse cross section of the wedge protrusion is arranged in an inverted isosceles trapezoid;

[0052] The forward and backward moving slide is provided with a wedge groove matched with the shape of the wedge protrusion, and the wedge protrusion is used to restrict the movement of the forward and backward moving slide in the up and down direction;

[0053] Wherein, the forward and backward moving slide can move forward and backward under the constraint of the wedge protrusion.

[0054] Optionally, a front-to-back adjustment member is provided on a side of the fixed base away from the back plate, and the front-to-back adjustment member is used to adjust the distance of the front-to-back movable slide relative to the wedge protrusion; a gear is provided at the end of the front-to-back adjustment member, and a rack is provided at the bottom of the wedge groove, and the gear is meshed with the rack;

[0055] Among them, rotating the front-to-back adjustment member drives the gear to rotate, and the gear drives the rack to move in the front-to-back direction, driving the front-to-back moving slide to move in the front-to-back direction.

[0056] Optionally, the up and down moving component includes:

[0057] A support base, the support base is fixedly arranged on the front and rear movable slide;

[0058] A first fixing seat and a second fixing seat are arranged on the end surface of the support base away from the front-rear movable slide, and the first fixing seat and the second fixing seat are arranged opposite to each other;

[0059] A first slide bar and a second slide bar are arranged between the first fixing seat and the second fixing seat; an outer arm slide bar is arranged between the first slide bar and the second slide bar;

[0060] An adjustable upper seat, wherein the adjustable upper seat is arranged above the supporting base;

[0061] The third fixing seat and the fourth fixing seat are arranged on one side of the adjusting upper seat close to the supporting base, and the third fixing seat and the fourth fixing seat are arranged opposite to each other; a third sliding rod and a fourth sliding rod are arranged between the third fixing seat and the fourth fixing seat; an inner arm sliding rod is arranged between the third sliding rod and the fourth sliding rod; the up and down moving assembly also includes:

[0062] Two inner scissor arms, the two inner scissor arms are respectively fixed to the first fixing seat and the side surfaces of the inner arm slider;

[0063] Two outer scissor fork arms, the two outer scissor fork arms are respectively fixed to the third fixing seat and the side surface of the outer arm sliding block;

[0064] A lifting knob is disposed on the outer side of the second fixing seat, and the lifting knob is used to adjust the height of the adjusting upper seat and the supporting base;

[0065] Among them, by rotating the lifting knob, the outer arm slider will move in the first slide bar and the second slide bar, and the inner arm slider will slide synchronously with the outer arm slider, and under the action of the inner scissor arm and the outer scissor arm, the height of the upper adjustment seat and the support base are adjusted together;

[0066] The headrest portion comprises:

[0067] A headrest member, the headrest member being fixedly arranged on the up-and-down moving assembly;

[0068] A neck support member is arranged above the front-rear moving assembly and is fixedly connected to the headrest member via an L-shaped member.

[0069] Compared with the prior art, the present application provides a backward pedaling machine, the arch compensation foot pedal of the backward pedaling machine can provide support for the user's arch by setting a left lifting part and a right lifting part, optimize the stress state of the foot during the backward pedaling training process, and solve the problem of compensation and femoral internal rotation caused by the existing backward pedaling machine foot pedal, and can improve the movement stability during training. Through the arch support, it can effectively disperse the foot pressure, reduce the risk of sports injuries, and enhance the training comfort. The arch compensation foot pedal can also improve the pain caused by compensation of the knee joint, hip joint and lumbar spine, and avoid joint injuries; and then it can correct the arch of the foot, hallux valgus, calcaneal valgus and valgus, hip shape, leg shape, different hips and different leg lengths and other problems. BRIEF DESCRIPTION OF THE DRAWINGS

[0070] Figure 1It is a three-dimensional structural schematic diagram of the reverse pedaling machine provided in this application;

[0071] Figure 2 It is a three-dimensional structural schematic diagram of the arch compensation foot pedal and the back pedal machine provided in the present application;

[0072] Figure 3 It is a three-dimensional structural schematic diagram of another perspective of the assembly of the arch compensation foot pedal and the reverse pedaling machine provided in the present application;

[0073] Figure 4 This application provides Figure 3 The enlarged schematic diagram of point A in the middle;

[0074] Figure 5 It is a three-dimensional structural schematic diagram of the assembly of the left pedal, the right pedal, the left lifting member and the right lifting member of the arch compensation foot pedal provided in the present application;

[0075] Figure 6 is a front view of a left pedal of the arch compensation foot pedal provided in the present application;

[0076] Figure 7 It is a three-dimensional structural schematic diagram of the assembly of the angle-adjustable backboard and the back pedal machine provided in the present application;

[0077] Figure 8 This application provides Figure 7 The enlarged schematic diagram of point B in the middle;

[0078] Fig. 9 It is a right side view of another perspective of the assembly of the angle-adjustable back plate and the back pedal machine provided in the present application;

[0079] Fig.10 This application provides Fig. 9 The enlarged schematic diagram of the center C;

[0080] Fig.11 It is a three-dimensional structural schematic diagram of another perspective of the assembly of the angle-adjustable backboard and the back pedal machine provided in the present application;

[0081] Fig.12 It is a schematic diagram of the three-dimensional structure of the backboard with adjustable left and right angles and the back pedal machine provided in the present application;

[0082] Fig.13 This application provides Fig.12 The enlarged schematic diagram of point D in the middle;

[0083] Fig.14 It is a top view from another perspective of the assembly of the back plate and the back pedal machine with adjustable left and right angles provided in the present application;

[0084] Fig.15A right view of another perspective of the assembly of the back plate and the back pedal machine with adjustable left and right angles provided in the present application;

[0085] Fig.16 This application provides Fig.14 A cross-sectional view along the Ⅰ-Ⅰ direction;

[0086] Fig.17 It is a three-dimensional structural schematic diagram of the reverse pedaling machine and the reverse pedaling machine assembly provided in the present application;

[0087] Fig.18 This application provides Fig.17 The enlarged schematic diagram of point E in the middle;

[0088] Fig.19 is a top view of the reverse pedaling machine and the reverse pedaling machine assembly provided in the present application from another perspective;

[0089] Fig. 20 This application provides Fig.19 The enlarged schematic diagram of F in the middle;

[0090] Fig.21 It is a three-dimensional structural schematic diagram of the assembly of the reverse pedal machine provided in the present application with the first side pushing member and the second side pushing member;

[0091] Fig. 22 This application provides Fig.21 The enlarged schematic diagram of G in the middle;

[0092] Fig.23 It is a three-dimensional structural schematic diagram of the adjustment part of the reverse pedal machine provided in this application.

[0093] Description of reference numerals:

[0094] 50. Backpedaling machine; 51. Fuselage frame; 511. First frame; 512. Second frame; 53. Crossbeam; 513. Bending member; 514. Track member; 515. Sliding groove; 52. Backpedaling member; 55. Backrest; 54. Legrest board; 541. Sacral protrusion; 542. Legrest rocker; 10. Arch compensation pedal; 11. Pedal body; 12. Left pedal member; 13. Right pedal member; 121. Left lifting member; 131. Right lifting member; 1211. Left main body; 1212. Left lifting block; 1213. Left lifting knob; 1311. Right main body; 1312. Right lifting block; 1313. Right lifting knob; 122. Left lifting through hole; 132. Right lifting through hole; 111. Fixing part; 112. Avoid Empty slot; 123, left toe portion; 1231, left latch; 133, right toe portion; 1331, right latch; 124, left sole portion; 134, right sole portion; 1241, first side push member; 1242, second side push member; 113, angle slot; 20, backboard with adjustable angle; 21, backboard body; 211, back lying end; 2111, backboard slot; 2112, backboard plate; 212, abutment end; 2121, abutment slot; 22, support plate; 23, lifting member; 231, lifting base; 2311, lifting hole; 2313, rocker member; 2312, scale slot; 232, lifting rod; 2321, abutment member; 30, backboard with adjustable left and right angles; 33, left and right lateral displacement member; 33 1. Fixed base; 3311. Knob; 332. Abutment rod; 333. Left and right lateral displacement seat; 34. Rotating shaft connection; 40. Adjustable headrest; 41. Headrest body; 42. Forward and backward moving assembly; 43. Up and down moving assembly; 412. Forward and backward moving slide; 413. Wedge protrusion; 414. Wedge groove; 415. Forward and backward adjusting member; 421. Fixed base; 431. Support base; 4311. First fixed base; 4312. Second fixed base; 4313. First slide bar; 4314. Second slide bar; 4315. Outer arm slide bar; 432. Adjusting upper seat; 4321. Third fixed base; 4322. Fourth fixed base; 4323. Third slide bar; 4324. Fourth slide bar; 4325. Inner arm Slider; 433, inner scissor arm; 434, outer scissor arm; 4316, lifting knob; 44, headrest; 441, headrest member; 442, neck support member; 443, L-shaped member; 60, screw-in member; 61, side push body; 62, locking member; 63, push block; 64, side push knob; 70, adjustment member; 71, front and rear rotating member; 72, rotating base; 73, left and right rotating layer; 74, lifting base; 721, front and rear rotating adjustment knob; 732, left and right rotating adjustment knob; 741, back panel height adjustment knob; 80, first back panel; 81, second back panel; 82, third back panel; 83, fourth back panel; 811, first half block; 812, second half block; 831, third half block; 832, fourth half block. DETAILED DESCRIPTION

[0095] The embodiments of the present application are described in detail below, and examples of the embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals throughout represent the same or similar elements or elements having the same or similar functions. The embodiments described below with reference to the accompanying drawings are exemplary and are only used to explain the present application, and cannot be understood as limiting the present application.

[0096] In the description of the present application, it should be understood that the terms "center", "longitudinal", "lateral", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside" and the like indicate positions or positional relationships based on the positions or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present application and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the present application. In addition, the terms "first" and "second" are used for descriptive purposes only, and cannot be understood as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, the features defined as "first" and "second" may explicitly or implicitly include one or more of the features. In the description of the present application, unless otherwise specified, "multiple" means two or more.

[0097] In the description of this application, it should be noted that, unless otherwise clearly specified and limited, the terms "installed", "connected", and "connected" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or it can be indirectly connected through an intermediate medium, or it can be the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in this application can be understood according to specific circumstances.

[0098] Please refer to Figures 1 to 6The first embodiment of the present application provides a reverse pedal machine 50, which includes a fuselage frame 51 and a reverse pedal member 52; the fuselage frame 51 is provided with a first frame 511 and a second frame 512, and the first frame 511 and the second frame 512 are fixedly connected by a plurality of cross beams 53, and specifically, the cross beams 53 are horizontally arranged to connect the first frame 511 and the second frame 512; the first frame 511 and the second frame 512 both include a bending member 513 and a track member 514, and the track member 514 is fixedly connected to both ends of the bending member 513, and the sides of the track member 514 are provided with sliding grooves 515; the two ends of the reverse pedal member 52 are slidably arranged in the sliding grooves 515, and specifically, the two side ends of the reverse pedal member 52 are provided with rolling The roller is adapted to the shape of the sliding groove 515, and the roller can move up and down under the constraint of the sliding groove 515; the inverted pedal 52 is provided with an arch compensation pedal 10; a backrest 55 is also provided between the bending parts 513, one end of the backrest 55 is rotatably connected to the fuselage frame 51, and the other end of the backrest 55 is provided with an adjustable headrest; a legrest board 54 is also provided below the track part 514, and a sacrum protrusion 541 is provided on the legrest board 54; the sacrum protrusion 541 is used for abutting against the human sacrum. Specifically, the sacrum protrusion 541 is designed to fit the human sacrum, which can alleviate a series of problems caused by excessive sacrum upward warping or ilium supination, including buttocks deformation, abnormal lumbar curvature, bad leg shape, low back pain and knee pain. The sacral protrusion 541 can guide the ilium to perform pronation adjustment through its protruding support, and promote the sacrum to perform anti-nodding movement, thereby effectively improving the position of the sacrum, optimizing the hip and leg shapes, restoring the natural physiological curvature of the lumbar spine, and significantly reducing the pain and discomfort of the waist and knees. The leg rest board is also provided with a leg rest rocker arm 542, and the leg rest rocker arm 542 is used to adjust the angle of the leg rest board 54, and the leg rest rocker arm 542 can lock the angle so that the sacral protrusion 541 better abuts against the sacrum of the human body. The arch compensation foot pedal 10 includes a pedal body 11, a left pedal 12 and a right pedal 13, and the left pedal 12 and the right pedal 13 are respectively arranged on the pedal body 11, and the left pedal 12 and the right pedal 13 are arranged at intervals. The horizontal cross-sections of the left pedal 12 and the right pedal 13 are in the shape of the left sole and the right sole, respectively, and a left lifting member 121 and a right lifting member 131 are respectively provided at the left arch of the left sole and the right arch of the right sole. The left lifting member 121 includes a left main body 1211, a left lifting block 1212 and a left lifting knob 1213; the right lifting member 131 includes a right main body 1311, a right lifting block 1312 and a right lifting knob 1313. The user can adjust the height of the left lifting block 1212 and the right lifting block 1312 through the left lifting knob 1213 and the right lifting knob 1313, so that the arch of the user's foot can be accurately supported, the sinking of the inner side of the sole can be reduced, and uneven distribution of force during training can be prevented.In addition, the left lifting block 1212 and the right lifting block 1312 can be extended and retracted up and down in the left lifting through hole 122 and the right lifting through hole 132 to ensure the stability of the lifting adjustment. At the same time, the pedal body 11 is provided with a fixing portion 111 and an air avoidance groove 112. The fixing portion 111 is used to fix the rotating shafts of the left pedal 12 and the right pedal 13. The heels of the left pedal 12 and the right pedal 13 are provided with rotating shafts, and one end of the rotating shaft is fixed in the fixing portion 111, so that the left pedal 12 and the right pedal 13 can rotate around the rotating shaft. The air avoidance groove 112 is used to avoid interference between structures during the adjustment process of the left lifting member 121 and the right lifting member 131, thereby improving the overall adaptability and functional stability. The left pedal 12 and the right pedal 13 also include a left toe portion 123, a left sole portion 124 and a right toe portion 133, a right sole portion 134. A left latch 1231 is provided at the end of the left toe portion 123, and a right latch 1331 is provided at the end of the right toe portion 133. The left latch 1231 and the right latch 1331 are respectively engaged and fixed with a plurality of angle grooves 113 on the pedal body 11. The user can adjust and fix the rotation angle of the left pedal 12 and the right pedal 13 as needed to further optimize the force state of the foot and ensure the natural fit of the user's sole and the arch compensation pedal 10 during training. Finally, when the arch compensation foot pedal 10 is used in combination with the backward pedaling machine, the left lifting member 121 and the right lifting member 131 provide effective support for the arch of the foot during the backward pedaling training. The shape and angle adjustment function of the pedals ensure the stability and natural force of the user's foot, prevent the inner side of the sole of the foot from sinking and the femur of the thigh from rotating inward, improve the standardization and safety of the training posture, and further improve the effect of the backward pedaling training.

[0099] Please refer to Figures 2 to 3 In some embodiments, the arch compensation pedal 10 includes a pedal body 11, a left pedal 12 and a right pedal 13, wherein the pedal body 11 is used to connect with the pedal of the reverse pedal machine, and the pedal body 11 can be magnetically connected, detachably connected or fixedly connected with the reverse pedal machine; the left pedal 12 is arranged on the pedal body 11; the right pedal 13 is arranged on the pedal body 11, and the left pedal 12 and the right pedal 13 are arranged at intervals; wherein the left pedal 12 is provided with a left lifting member 121, the A right lifting member 131 is provided in the right pedal 13, and the left lifting member 121 and the right lifting member 131 are both used to provide support for the user's arch of the foot. Furthermore, by providing the left lifting member 121 and the right lifting member 131, support can be provided for the user's arch of the foot, and the force state of the foot during the backward pedaling training process can be optimized, which solves the problem of compensation and femoral internal rotation caused by the pedal of the existing backward pedaling machine, and can improve the movement stability during training. Through the arch support, the foot pressure can be effectively dispersed, the risk of sports injuries can be reduced, and the training comfort can be enhanced.

[0100] Please refer to Figure 4 In some embodiments, the horizontal cross section of the left pedal 12 is set to be in the shape of a left sole, the horizontal cross section of the right pedal 13 is set to be in the shape of a right sole, the left lifting member 121 is set at the left arch of the left sole, and the right lifting member 131 is set at the right arch of the right sole, so that local support can be provided for the arch part, further optimizing the force balance. This avoids the problem of training compensation caused by uneven support and is more ergonomically designed.

[0101] Please refer to Figures 4 to 5 In some embodiments, the left lifting member 121 includes a left main body 1211, a left lifting block 1212 and a left lifting knob 1213. The left main body 1211 is fixedly arranged below the left pedal 12; the left lifting block 1212 is arranged above the left main body 1211; the left lifting knob 1213 is arranged on the side of the left main body 1211; the left lifting knob 1213 is used to adjust the height of the left lifting block 1212; the right lifting member 131 includes a right main body 1311, a right lifting block 1312 and a right lifting knob 1313. The right main body 1311 is fixedly arranged below the right pedal 13; the right lifting block 1312 is arranged above the right main body 1311; the right lifting knob 1313 is arranged on the side of the right main body 1311; the right lifting knob 1313 is used to adjust the rising height of the right lifting block 1312, and then through the height adjustment function of the left lifting block 1212 and the right lifting block 1312, the user can freely adjust the support height according to the height requirements of his own arch of the foot to meet personalized needs, so that the foot pedal can be adapted to different people, which helps to improve the user experience.

[0102] Please refer to Figure 4 In some embodiments, a left lifting hole 122 is provided at the left arch of the foot, and the left lifting block 1212 is telescoped up and down in the left lifting hole 122; a right lifting hole 132 is provided at the right arch of the foot, and the right lifting block 1312 is telescoped up and down in the right lifting hole 132, thereby achieving stable lifting support, avoiding lateral shaking, and ensuring the accuracy and reliability of support.

[0103] Please refer to Figures 4 to 5 In some embodiments, a fixing portion 111 is provided on the pedal body 11, and the fixing portion 111 is used to fix the rotating shafts of the left pedal 12 and the right pedal 13, thereby helping to improve the overall mechanical stability of the pedal and ensure the safety of the user during training.

[0104] Please refer to Figure 4In some embodiments, the pedal body 11 is further provided with an avoidance groove 112, and the avoidance groove 112 is arranged on the side of the fixing part 111, thereby providing an avoidance space for the fixing part 111 to prevent interference with the left lifting member 121 and the right lifting member 131, thereby optimizing the layout of the foot pedal and ensuring the normal operation of the lifting member.

[0105] Please refer to Figure 4 In some embodiments, the left lifting member 121 and the right lifting member 131 are both arranged in the air avoiding groove 112, and the left lifting member 121 and the right lifting member 131 are suspended above the air avoiding groove 112, and when the left lifting member 121 rotates clockwise along the rotating shaft of the left pedal member 12, the left lifting member 121 does not contact the groove wall of the air avoiding groove 112; when the right lifting member 131 rotates counterclockwise along the rotating shaft of the right pedal member 13, the right lifting member 131 does not contact the groove wall of the air avoiding groove 112, and then through the movement design of the lifting member in the air avoiding groove 112, it is ensured that the left lifting member 121 and the right lifting member 131 do not contact the groove wall of the air avoiding groove 112 during the rotation process, thereby improving the operability and flexibility of the device, providing a greater degree of adjustment freedom for the pedal, and enabling the user to freely adjust the support state according to needs.

[0106] In some embodiments, the left pedal 12 includes a left toe portion 123 and a left sole portion 124, and a left latch 1231 is provided at the end of the left toe portion 123, and the left latch 1231 is used to fix the rotation angle of the left pedal 12; the right pedal 13 includes a right toe portion 133 and a right sole portion 134, and a right latch 1331 is provided at the end of the right toe portion 133, and the right latch 1331 is used to fix the rotation angle of the right pedal 13. Furthermore, through the design of the left latch 1231 and the right latch 1331, the rotation angle of the pedal can be effectively fixed, thereby avoiding accidental rotation of the left pedal 12 or the right pedal 13 during training, allowing the user to select a suitable angle according to training needs, thereby improving the applicability of the equipment.

[0107] Please refer to Figure 4 In some embodiments, a plurality of angle grooves 113 are provided on the pedal body 11, and the plurality of angle grooves 113 are provided on the periphery of the left sole portion 124 and the right sole portion 134, and the plurality of angle grooves 113 can be engaged and fixed with the right latch 1331 and the left latch 1231, so as to adjust the internal rotation angle of the hip joint, realize the user's internal rotation, correct the excessive lumbar curve and rib eversion, thereby ensuring that the pedal remains stable during training and improving the safety of the equipment.

[0108] Please refer to Figure 6In some embodiments, the left lifting knob 1213 and the right lifting knob 1313 are respectively arranged on the sides of the left main body 1211 and the right main body 1311, and the outer peripheries of the left lifting knob 1213 and the right lifting knob 1313 are provided with scales. The knob is connected to the lifting block by a thread or other transmission device. The rotation of the knob drives the movement of the thread or gear mechanism, thereby realizing the up and down adjustment of the lifting block. When the user rotates the left lifting knob 1213, the left lifting block 1212 moves up and down along the left lifting through hole 122 to adjust the support height of the left arch of the foot; similarly, the right lifting knob 1313 controls the up and down movement of the right lifting block 1312 to adjust the support height of the right arch of the foot. Specifically, a thread or gear device can be provided at the end of the left lifting knob 1213 and the right lifting knob 1313. The rotation of the knob drives the vertical movement of the lifting block through the mutual engagement of the thread or gear. When the left lifting knob 1213 is rotated, the thread installed on the knob contacts the corresponding thread of the left lifting block 1212, and the rotation generates longitudinal movement, so that the left lifting block 1212 moves up and down, achieving the effect of adjusting the arch support height. Similarly, the transmission system of the right lifting knob 1313 and the right lifting block 1312 is also similar, which belongs to the prior art.

[0109] In some embodiments, the arch compensation foot pedal 10 can also improve the pain caused by compensation of the knee, hip and lumbar joints, and avoid joint injuries; and can further correct problems such as arches, hallux valgus, calcaneal valgus, hip shape, leg shape, different hips and different leg lengths.

[0110] In some embodiments, the arch compensation foot pedal 10 can also be connected to a weight trainer to achieve hip joint training, further improving the user's training effect.

[0111] Please refer to Figures 7 to 11The adjustable angle backboard 20 is composed of a backboard body 21, a support plate 22 and a lifting member 23. The backboard body 21 is a support surface for the user to perform back-pedaling training. The backboard body 21 has a back-lying end 211 and an abutting end 212. The back-lying end 211 is for the user to lie down, and the abutting end 212 contacts the lifting member 23 through an abutting groove 2121. The support plate 22 is located below the backboard body 21. The support plate 22 is used to connect the backboard body 21 with the body of the back-pedaling machine to ensure the stability of the structure. The lifting member 23 includes a lifting base 231, a lifting rod 232 and an abutting member 2321, wherein the lifting base 231 is fixed on the support plate 22, the lifting rod 232 slides up and down in the lifting hole 2311 of the lifting base 231, and the abutting member 2321 is arranged at the top of the lifting rod 232, and the abutting member 2321 cooperates with the abutting groove 2121. In addition, a rocker arm 2313 is arranged on the side wall of the lifting base 231, and the rocker arm 2313 has a scale groove 2312, which is used to drive the lifting rod 232 to move and provide precise adjustment control. In actual work, the back plate body 21 is connected to the fuselage of the back pedal machine through a rotating bearing to form a rotatable adjustment mechanism. The support plate 22 provides bottom support for the entire back plate and fixes the position of the lifting member 23 so that it forms a fulcrum with an adjustable angle with the abutment end 212 of the back plate body 21. The user drives the lifting rod 232 to move up and down by rotating the rocker arm 2313 on the lifting member 23, and the abutment 2321 slides in the abutment groove 2121, thereby changing the angle between the back plate body 21 and the fuselage of the back pedal machine. Not only the adjustment of the back plate angle is achieved, but also the uniform transmission of force is ensured to avoid structural deviation or shaking. This not only improves the user experience, but also effectively solves the problem of complicated adjustment of the backboard of the existing inverted pedaling machine, and also solves the problem of inaccurate user training status and left and right rotation of the thoracic spine due to improper adjustment of the backboard angle when the user's joints are injured.

[0112] Please refer to Figures 7 to 10 In some embodiments, the adjustable angle backboard 20 includes a backboard body 21, a support plate 22 and a lifting member 23; the backboard body 21 is used to be rotatably connected to the back pedal machine; the support plate 22 is used to be connected to the body of the back pedal machine; the support plate 22 is arranged below the backboard body 21; one end of the lifting member 23 is fixedly arranged on the support plate 22, and the other end of the lifting member 23 abuts against the backboard body 21; thereby avoiding the complicated operation of the traditional manual adjustment pin. The lifting member 23 directly provides the angle adjustment support of the backboard, making the adjustment process simpler and faster, while ensuring the angle stability of the backboard, solving the limitation of the prior art that the training needs to be suspended and the adjustment depends on manpower.

[0113] Please refer to Fig. 9In some embodiments, the backboard body 21 is provided with a back-lying end 211 and abutting end 212 which are arranged opposite to each other. The back-lying end 211 is used for the user to lie down, and the abutting end 212 is used to abut against the lifting member 23; the abutting end 212 is provided with an abutting groove 2121, so as to facilitate the stable contact and operation of the lifting member 23, avoid sliding and falling off, and provide more comfort options for the user. The other end of the lifting member 23 abuts on the abutting groove 2121, thereby enhancing the reliability and flexibility of the backboard 20 with adjustable angle.

[0114] Please refer to Fig.10 In some embodiments, the longitudinal cross-section of the abutment groove 2121 is set to be semicircular, semi-arc or arched, and the mouth of the abutment groove 2121 is set away from the back-lying end 211; thereby improving the matching degree between the lifting member 23 and the abutment groove 2121, reducing friction, improving the smoothness of adjustment and service life, while making the operation more labor-saving and optimizing the user experience.

[0115] Please refer to Fig.10 In some embodiments, the lifting member 23 includes a lifting base 231 and a lifting rod 232, the lifting base 231 is fixedly arranged on the support plate 22; the lifting base 231 is provided with a lifting hole 2311, the lifting rod 232 is arranged in the lifting hole 2311, and the lifting rod 232 is telescopically moved up and down under the constraint of the lifting hole 2311; thereby making the back panel angle adjustment more intuitive and convenient, the lifting rod 232 operates under the constraint of the lifting hole 2311, ensuring the accuracy of the motion path, and avoiding the problem of the lifting member 23 being skewed or out of control.

[0116] Please refer to Fig.10 In some embodiments, abutment 2321 is provided at the top of the lifting rod 232, and the abutment 2321 is configured as a sphere or a hemisphere; wherein, when the lifting rod 232 telescopes up and down, the abutment 2321 slides in the abutment groove 2121 to achieve angle adjustment of the back panel body 21, thereby improving the contact adaptability with the abutment groove 2121. During the lifting process, the spherical design reduces sliding friction, enhances the smoothness and accuracy of the adjustment process, and reduces the wear of the abutment 2321.

[0117] Please refer to Fig.10In some embodiments, a rocker arm 2313 is provided on the side wall of the lifting base 231, and a plurality of scale grooves 2312 are provided on the rocker arm 2313; wherein, by shaking the rocker arm 2313, the lifting rod 232 is driven to move up and down, thereby driving the abutment member 2321 to slide in the abutment groove 2121, so as to achieve the angle adjustment of the back panel body 21, and then by designing a rocker arm 2313 on the side wall of the lifting base 231 and adding scale grooves 2312, the user can accurately control the extension degree of the lifting rod 232 through the rocker arm 2313, so as to achieve the precise adjustment of the back panel angle, and the scale groove 2312 provides an intuitive angle indication, which further improves the convenience of the user in adjusting the back panel angle.

[0118] Please refer to Fig.11 In some embodiments, a backboard groove 2111 is provided on the back-lying end 211, and a plurality of backboard panels 2112 are arranged in the backboard groove 2111 at intervals, thereby improving the comfort of the backboard. The user can adjust the layout of the backboard panels 2112 as needed to provide more ergonomic support and improve the user's training experience.

[0119] In some embodiments, the back plate 2112 is configured as two pieces, thereby enhancing the flexibility of the back plate structure and facilitating production, assembly and maintenance. The split design allows the back plate to adapt to the needs of users of different body shapes, while reducing the weight of the entire back plate and facilitating movement and adjustment.

[0120] In some embodiments, the back panel 2112 is provided in two pieces, and both of the two back panels 2112 can be extended and retracted up and down and swung left and right, thereby improving the adjustability of the back panel 2112 and greatly enhancing the user's experience.

[0121] In some embodiments, the longitudinal cross-section of the back-lying end 211 is configured to be arc-shaped or curved, so that the backboard can better fit the back curve of the user, significantly improving the comfort and support effect of training, and can also disperse the pressure on the user's back and reduce the discomfort caused by long-term training.

[0122] In some embodiments, the specific working principle of rocking the rocker arm 2313 to drive the lifting rod 232 to move up and down is as follows: the rocker arm 2313 is connected to the lifting rod 232 through the gear mechanism at its end. When the user manually rotates the rocker arm 2313, the gear rotates, and the rotation of the gear is converted into a linear movement of the lifting rod 232 through the threaded drive mechanism engaged therewith. In this process, the lifting rod 232 is constrained by the lifting hole 2311 to ensure precise movement only in the vertical direction. The graduated groove 2312 set on the rocker arm 2313 provides visual guidance, and the user can adjust it to different heights and lock it as needed. The lifting member 23 of the present application is a prior art, and those skilled in the art can flexibly select the technical solution for driving the lifting rod 232.

[0123] In some embodiments, a spring or a damper may be further provided in the lifting rod 232. The spring provides a return force to help the lifting rod 232 return to an initial position when there is no load; the damper prevents the lifting rod 232 from moving too fast, thereby ensuring a safe and smooth adjustment process.

[0124] Please refer to Figures 12 to 16In some embodiments, the backboard 30 with adjustable left and right angles is mainly composed of a rotating shaft connection part 34, a backboard body 21, a support plate 22 and left and right transverse members 33, which together realize the angle adjustment function of the backboard in the left and right directions, so as to meet the body posture requirements of different users during the back pedaling training process and improve the comfort and scientificity of the training. The rotating shaft connection part 34 rotatably connects the backboard body 21 with the back pedaling machine, providing stable support and a certain degree of rotational freedom for the backboard. The backboard body 21 is the main structure for the user to lie down during the back pedaling training. The back-lying end 211 above it provides lying support for the user, and the abutting end 212 below cooperates with the left and right transverse members 33 to ensure that the backboard can be flexibly adjusted in the left and right directions. The support plate 22 is located below the backboard body 21 and is connected to the back pedaling machine body to play a stable supporting role. One end of the left and right transverse members 33 is fixed on the support plate 22, and the other end of the left and right transverse members 33 abuts against the abutment groove 2121 through the abutment member 2321. When the user adjusts the left and right angles of the backboard, the left and right lateral displacement seat 333 slides left and right on the fixed base 331, thereby driving the abutment rod 332 to move left and right in the abutment groove 2121. The semicircular, semi-arc or arched shape of the abutment groove 2121 enables the abutment member 2321 to slide smoothly during movement while maintaining stability and reliability. By rotating the knob member 3311, the user can accurately control the moving distance and position of the left and right lateral displacement seat 333. The scale marks set on the knob member 3311 facilitate the user to make precise adjustments to ensure that the backboard achieves an ideal positioning effect when adjusting the left and right angles. The backboard groove 2111 is located at the back-lying end 211, and a number of backboard plates 2112 are arranged inside the backboard groove 2111. The arc or curved structure of the cross-section of the back-lying end 211 helps to enhance the fit of the user's back and provide a more comfortable training experience.

[0125] Please refer to Figures 12 to 16 In some embodiments, the backboard 30 with adjustable left and right angles includes a shaft connection portion 34, a backboard body 21, a support plate 22, and left and right transverse members 33; the shaft connection portion 34 is used to be rotatably connected to the back pedal machine; the backboard body 21 is connected to the shaft connection portion 34; the support plate 22 is used to be connected to the back pedal machine body; the support plate 22 is arranged below the backboard body 21; one end of the left and right transverse members 33 is fixedly arranged on the support plate 22, and the other end of the left and right transverse members 33 abuts against the backboard body 21, thereby achieving the adjustability of the left and right angles of the backboard of the back pedal machine, so that the user can freely adjust the backboard angle according to personal physical condition and training needs, so as to better correct the left and right deviation of the spine and improve the comfort and effectiveness of training. The applicability and ergonomic design level of the back pedal machine are improved, and the user's training experience is enhanced.

[0126] Please refer to Fig.12 In some embodiments, the back panel body 21 is provided with a back-lying end 211 and abutting end 212 which are relatively arranged. The back-lying end 211 is used for the user to lie down, and the abutting end 212 is used to abut against the left and right transverse moving members 33; the abutting end 212 is provided with an abutting groove 2121, and the other end of the left and right transverse moving members 33 abuts against the abutting groove 2121, so that the left and right transverse moving members 33 can contact and support the back panel body 21 more stably, avoiding displacement or detachment during sliding, and improving the stability and accuracy of the back panel adjustment.

[0127] Please refer to Figure 15 to Figure 16 In some embodiments, the longitudinal cross-section of the abutment groove 2121 is set to be semicircular, semi-arc or arch-shaped, and the mouth of the abutment groove 2121 is set away from the back-lying end 211; the transverse cross-section of the abutment groove 2121 is set to be semi-arc or arch-shaped, so that the left and right transverse moving members 33 can slide smoothly when abutting in the abutment groove 2121, effectively reducing friction resistance, improving the accuracy and stability of the left and right angle adjustment of the back panel, and ensuring that it can still maintain firm support at different angles.

[0128] Please refer to Fig.13 In some embodiments, the left-right lateral shifting member 33 includes a fixed base 331 and a left-right lateral shifting seat 333. The fixed base 331 is fixedly disposed on the support plate 22; the fixed base 331 is engaged with the left-right lateral shifting seat 333; and the left-right lateral shifting seat 333 can stably slide on the fixed base 331 to achieve precise adjustment of the back plate. The left-right lateral shifting seat 333 is provided with an abutment rod 332, and the movement of the left-right lateral shifting seat 333 can be transmitted to the back plate body 21, ensuring the synchronization and controllability of the adjustment process, and reducing shaking or offset during the adjustment process.

[0129] Please refer to Figure 15 to Figure 16 In some embodiments, the top of the abutment rod 332 is provided with an abutment member 2321, and the abutment member 2321 is set as a sphere or a hemisphere; wherein, when the left-right lateral displacement seat 333 moves left-right, it drives the abutment rod 332 to move left-right, and the abutment member 2321 slides left-right in the abutment groove 2121 to adjust the left-right angle of the back plate body 21, thereby enabling the abutment member 2321 to slide smoothly in the abutment groove 2121, reducing friction and wear between contact surfaces. The abutment member 2321 in the shape of a sphere or a hemisphere can better adapt to the abutment groove 2121 in the shape of a semicircle, a semi-arc or a bow, improving the smoothness and stability of the adjustment.

[0130] In some embodiments, a knob 3311 is provided on the side wall of the fixed base 331, and a plurality of scale marks are provided on the knob 3311, so that the user can quickly and accurately adjust to the desired angle according to the scale. By twisting the knob 3311, the left-right lateral shift seat 333 is driven to move left-right, and the abutment 2321 is driven to slide in the abutment groove 2121, so as to adjust the left-right angle of the back panel body 21, so that the user can realize the movement of the left-right lateral shift seat 333 by rotating the knob, thereby driving the abutment 2321 to slide in the abutment groove 2121, and adjusting the left-right angle of the back panel, which reduces the threshold of use and facilitates the operation needs of different users.

[0131] In some embodiments, the specific working principle that the user can realize the movement of the left and right lateral shift seat 333 by rotating the knob is that when the user rotates the knob member 3311, the knob member 3311 is usually provided with a threaded structure or a gear transmission device, and the rotational motion of the knob is converted into a linear transmission motion by the rotation operation. This transmission mechanism can be a screw drive or a gear and rack drive, so that the left and right lateral shift seat 333 moves smoothly left and right along the guide structure of the fixed base 331. In this process, there is a precise meshing structure between the left and right lateral shift seat 333 and the fixed base 331, ensuring that the rotation of the knob can be accurately transmitted to the left and right lateral shift seat 333, so as to achieve fine adjustment of the left and right lateral shift seat 333. At the same time, the knob member 3311 is provided with scale marks, and the user can intuitively observe the displacement degree of the left and right lateral shift seat 333 through these marks, so as to ensure the accuracy and controllability of the adjustment. The left and right lateral shift member 33 of the present application is a prior art.

[0132] Please refer to Fig.14 In some embodiments, a back panel groove 2111 is provided on the back-lying end 211, and a plurality of back panel plates 2112 are arranged at intervals in the back panel groove 2111; the back-lying end 211 is provided with a back panel groove 2111, and a plurality of back panel plates 2112 are arranged in the back panel groove 2111, so that the back-lying area is more ergonomically designed, fits the curve of the user's back, can effectively disperse the force on the back, improve the user's comfort during training, and reduce the user's discomfort during training.

[0133] Please refer to Fig.14 In some embodiments, the back plate 2112 is configured as two pieces, which can not only better fit the back shape of different users and provide a more personalized support effect, but also reduce the manufacturing cost of the back plate.

[0134] Please refer to Fig.12In some embodiments, the longitudinal cross-section of the back-lying end 211 is set to be arc-shaped or curved, so that the backboard can better fit the natural curve of the human spine, effectively reducing the gap between the back and the backboard, providing more uniform support, and reducing local pressure points. This improves the comfort of the user and enhances the experience of the training process.

[0135] In some embodiments, the pivot connection portion 34 includes a cross bar and a pivot portion, the cross bar is connected to the body of the inverted pedal machine, the pivot portion is arranged in the middle of the cross bar, and the back panel body 21 is connected to the pivot of the pivot portion, so that the pivot portion can adjust the angle in the left and right directions, and the pivot portion can rotate on the cross bar, so that the back panel body 21 can rotate in the up and down directions.

[0136] In some embodiments, a height adjustment knob is provided on the left and right lateral shift seat 333, which can adjust the height of the abutment rod 332, and thus adjust the angle of the back plate. The height adjustment knob is provided with a threaded structure or a gear transmission device, and the rotational motion of the knob is converted into a linear transmission motion by a rotation operation. A gear and rack transmission structure is used between the left and right lateral shift seat 333 and the height adjustment knob.

[0137] Please refer to Figures 17 to 20 The first embodiment of the present application provides an adjustable headrest 40 for users to do backward pedaling training. The adjustable headrest 40 is designed to include a forward and backward moving component 42, an up and down moving component 43 and a headrest part 44 to meet the user's personalized needs for head and neck support during backward pedaling training. The forward and backward moving component 42 is composed of a fixed base 421, a forward and backward moving slide 412, a wedge protrusion 413, a wedge groove 414 and a forward and backward adjusting member 415. Under the support of the fixed base 421, the forward and backward moving slide 412 can slide smoothly forward and backward thereon, and the arrangement of the wedge protrusion 413 and the wedge groove 414 ensures that the slide will not shake in the up and down direction during the sliding process and only moves in the forward and backward direction. By rotating the forward and backward adjusting member 415 and utilizing the cooperation of the gear and the rack, the user can accurately drive the forward and backward moving slide 412 to adjust its position.

[0138] Please refer to Figure 19 to Figure 20The up-and-down moving assembly 43 includes a support base 431, a fixed base, a first slide bar 4313, a second slide bar 4314, a third slide bar 4323, a fourth slide bar 4324, an outer arm slider 4315 and an inner arm slider 4325, an adjustment upper seat 432, an inner scissor arm 433 and an outer scissor arm 434. Under the stable support of the support base 431, the slide bar provides a moving track for the slider. By rotating the lifting knob 4316, the user can drive the inner arm slider 4325 and the outer arm slider 4315 to slide synchronously on the slide bar. As the slider moves, the inner scissor arm 433 and the outer scissor arm 434 work together to expand or contract, thereby driving the headrest part 44 to be lifted and lowered, ensuring the stability and stability of the headrest part 44 during the lifting process. The headrest part 44 is composed of a headrest part 441 and a neck support part 442, which are connected together by an L-shaped part 443. The headrest 441 provides support for the head, while the neck support 442 provides additional support for the neck; specifically, the neck support 442 is semicircular, which can straighten the user's arched cervical spine, thereby not only improving the user's training comfort, but also allowing the headrest 44 to be individually adjusted according to the needs of different users.

[0139] Please refer to Figure 17 to Figure 18 In some embodiments, the adjustable headrest 40 includes a headrest body 41, a front-to-back moving component 42, an up-and-down moving component 43 and a headrest portion 44; the headrest body 41 is detachably connected to the back plate of the leg leg machine; the front-to-back moving component 42 is fixedly arranged on the headrest body 41; the up-and-down moving component 43 is fixedly arranged on the front-to-back moving component 42; the headrest portion 44 is arranged on the up-and-down moving component 43, thereby realizing flexible adjustment of the headrest in the horizontal and vertical directions, thereby meeting the personalized needs of different users during training and improving the comfort and effect of training.

[0140] Please refer to Fig.18 In some embodiments, the front-to-back moving component 42 includes a fixed base 421 and a front-to-back moving slide 412, wherein the fixed base 421 is fixedly connected to the headrest body 41; the front-to-back moving slide 412 is slidably connected to the fixed base 421, thereby enabling the headrest body 41 to stably move in the front-to-back direction, and the user can easily adjust the position of the headrest as needed, thereby improving the convenience and flexibility of use.

[0141] Please refer to Fig.18In some embodiments, a wedge protrusion 413 is provided on the side of the fixed base 421 away from the headrest body 41, and the transverse cross-section of the wedge protrusion 413 is set to an inverted isosceles trapezoid; the front-to-back movable slide 412 is provided with a wedge groove 414 adapted to the shape of the wedge protrusion 413, and the wedge protrusion 413 is used to constrain the upward and downward movement of the front-to-back movable slide 412; wherein, the front-to-back movable slide 412 can move forward and backward under the constraint of the wedge protrusion 413, thereby effectively limiting the upward and downward movement of the front-to-back movable slide 412, ensuring that the front-to-back movable slide 412 can only move along the front-to-back direction, thereby improving the accuracy and stability of the adjustment, while simplifying the structure and reducing the production cost.

[0142] Please refer to Fig.18 In some embodiments, a front-rear adjustment member 415 is provided on the side of the fixed base 421 away from the back plate, and the front-rear adjustment member 415 is used to adjust the distance that the front-rear movable slide 412 slides back and forth relative to the wedge protrusion 413, so that the user can drive the front-rear movable slide 412 to move by rotating the adjustment member, thereby adjusting the position of the headrest, improving the accuracy and flexibility of the adjustment, and allowing the user to easily realize personalized adjustment of the headrest according to personal needs.

[0143] In some embodiments, a gear is provided at the end of the front and rear adjustment member 415, and a rack is provided at the bottom of the wedge groove 414, and the gear is meshed with the rack; wherein, the front and rear adjustment member 415 is rotated to drive the gear to rotate, and the gear drives the rack to move in the front and rear direction, and drives the front and rear moving slide 412 to move in the front and rear direction, thereby making the adjustment process smoother and more accurate, avoiding shaking or instability of the headrest caused by improper adjustment, and improving the comfort and safety of use.

[0144] Please refer to Figure 19 to Figure 20In some embodiments, the up-and-down moving assembly 43 includes a supporting base 431 and an adjusting upper seat 432, wherein the supporting base 431 is fixedly arranged on the forward-and-backward moving slide 412; a first fixed seat 4311 and a second fixed seat 4312 are arranged on the end surface of the supporting base 431 away from the forward-and-backward moving slide 412, and the first fixed seat 4311 and the second fixed seat 4312 are arranged opposite to each other; a first sliding rod 4313 and a second sliding rod 4314 are arranged between the first fixed seat 4311 and the second fixed seat 4312; an outer arm sliding block 4315 is arranged between the first sliding rod 4313 and the second sliding rod 4314; the adjusting upper seat 432 is provided with The third fixing seat 4321 and the fourth fixing seat 4322 are arranged on one side of the adjusting upper seat 432 close to the supporting base 431, and the third fixing seat 4321 and the fourth fixing seat 4322 are arranged opposite to each other; a third sliding bar 4323 and a fourth sliding bar 4324 are arranged between the third fixing seat 4321 and the fourth fixing seat 4322; an inner arm sliding bar 4325 is arranged between the third sliding bar 4323 and the fourth sliding bar 4324, so that the headrest part 44 can be accurately adjusted in the up and down directions. At the same time, the design of multiple sliding bars and sliding blocks is introduced to make the adjustment range larger to meet the different needs of different users.

[0145] Please refer to Figure 19 to Figure 20 In some embodiments, the up and down moving assembly 43 also includes two inner scissor arms 433 and two outer scissor arms 434, and the two inner scissor arms 433 are respectively fixed to the sides of the first fixed seat 4311 and the inner arm slider 4325; the two outer scissor arms 434 are respectively fixed to the sides of the third fixed seat 4321 and the outer arm slider 4315, thereby ensuring the smoothness and stability of the lifting and lowering of the headrest portion 44, which not only improves the lifting and lowering stability of the headrest portion 44, but also enhances the strength of the entire structure, making the headrest portion 44 more stable when under pressure.

[0146] Please refer to Figure 19 to Figure 20 In some embodiments, a lifting knob 4316 is provided on the outer side of the second fixed seat 4312, and the lifting knob 4316 is used to adjust the height of the adjusting upper seat 432 and the supporting base 431; wherein, by rotating the lifting knob 4316, the outer arm slider 4315 will move in the first slide bar 4313 and the second slide bar 4314, and the inner arm slider 4325 will slide synchronously with the outer arm slider 4315, and under the action of the inner scissor arm 433 and the outer scissor arm 434, the height of the adjusting upper seat 432 and the supporting base 431 are adjusted together, so that the user can conveniently adjust the height and position of the headrest part 44, making the adjustment process smoother and improving the user's training experience.

[0147] Please refer to Fig.19 In some embodiments, the headrest portion 44 includes a headrest component 441 and a neck support component 442, and the headrest component 441 is fixedly arranged on the up-and-down moving component 43; the neck support component 442 is arranged above the front-and-back moving component 42, and the neck support component 442 is fixedly connected to the headrest component 441 through an L-shaped component 443. Specifically, the neck support component 442 is arranged to be semi-cylindrical and semi-circular, thereby further improving the user's training comfort and experience. At the same time, the design of the headrest component 441 and the neck support component 442 can be customized according to the needs of the user.

[0148] Please refer to Fig.21 and Fig. 22 In some embodiments, the left sole portion 124 and the right sole portion 134 are provided with a first side pushing member 1241 and a second side pushing member 1242 on the left and right sides of the calcaneal position of the user's sole. The first side pushing member 1241 and the second side pushing member 1242 are used to correct the user's calcaneal inversion or eversion. Specifically, the first side pushing member 1241 is arranged on the outside of the user's calcaneal position and pushes toward the inside of the calcaneal, and the second side pushing member 1242 is arranged on the inside of the user's calcaneal position and pushes toward the outside of the calcaneal; that is, the first side pushing member 1241 and the second side pushing member 1242 both push appropriately toward both sides of the user's calcaneal.

[0149] Please refer to Fig.21 and Fig. 22 In some embodiments, the first side pushing member 1241 and the second side pushing member 1242 are provided with a screw-in member 60, and the screw-in member 60 is used to be screwed into the fixing portion 111 for fixing. The fixing portion 111 is provided with a screw-in hole that cooperates with the screw-in member 60. The first side pushing member 1241 and the second side pushing member 1242 both have a side pushing body 61, a locking member 62, a pushing block 63 and a side pushing knob 64; the screw-in member 60 is arranged below the side pushing body 61, the locking member 62 is arranged above the side pushing body 61, and the side pushing knob 64 is arranged at the bottom of the side pushing body 61. The push block 63 is arranged at the rear of the side push body 61, and is arranged in front of the side push knob 64. The push block 63 is made of rubber material. The push block 63 of the first side push member 1241 is arranged in a rectangular parallelepiped shape, and the push block 63 of the second side push member 1242 is arranged in a wedge shape. Specifically, a scale mark is arranged on the outside of the side push knob 64, and the setting position of the side push knob 64 can be placed at the rear side of the back pedal member. The pushing direction of the push block 63 of the second side push member 1242 can be arranged perpendicular to the left sole 124 and the right sole 134. In this way, the user's calcaneus can be properly pushed at the same time to correct the problem of the user's calcaneus varus and valgus.

[0150] Please refer to Figure 1 and Fig.23 In some embodiments, an adjustment member 70 is provided below the back plate; the adjustment member 70 is provided with a front-to-back rotating member 71, a rotating base 72, a left-to-right rotating layer 73 and a lifting base 74 from top to bottom, and a front-to-back rotating adjustment knob 721 is provided on the side of the front-to-back rotating member 71; specifically, when the user rotates the front-to-back rotating adjustment knob 721, a gear or a worm will be driven to drive the front-to-back rotating member 71 to rotate. This rotation process will change the angle between the back plate and the back plate body, thereby achieving the tilt adjustment in the front-to-back direction. The left-to-right rotating layer 73 is provided with a left-to-right rotating adjustment knob 732, specifically, the left-to-right rotating adjustment knob 732 is connected to the left-to-right rotating layer 73 through a connecting rod or a slide rail. When the user rotates the knob, the transmission mechanism will be driven to drive the left-to-right rotating layer 73 to adjust the tilt in the left-to-right direction; the lifting base 74 is provided with a back plate height adjustment knob 741 on the side; specifically, the back plate height adjustment knob 741 is connected to the lifting base 74 through a lead screw or a lifting column. When the user rotates the knob, the transmission mechanism is driven to drive the lifting base 74 to move up and down, thereby changing the height of the back plate. The front-to-back rotation adjustment knob 721, the left-to-right rotation adjustment knob 732 and the back plate height adjustment knob 741 are all marked with scales, and the positions of the front-to-back rotation adjustment knob 721, the left-to-right rotation adjustment knob 732 and the back plate height adjustment knob 741 can be flexibly set.

[0151] Please refer to Figure 1 and Fig. 22In some embodiments, the plurality of back plates 2112 are configured as a first back plate 80, a second back plate 81, a third back plate 82, and a fourth back plate 83. The first back plate 80, the second back plate 81, the third back plate 82, and the fourth back plate 83 are sequentially connected to form a complete back support system. The second back plate 81 is divided into a first half block 811 and a second half block 812; the fourth back plate 83 is divided into a third half block 831 and a fourth half block 832; and the first back plate 80, the first half block 811, the second half block 812, the third half block 831, and the fourth half block 832 are all provided with an adjustment The whole piece 70, the adjustment piece 70 is used to drive the rise, fall and left and right tilt fine adjustment of the first back plate 80, the first half block 811, the second half block 812, the third half block 831 and the fourth half block 832; the first half block 811 and the second half block 812 are both provided with sacral protrusions; specifically, the angle between the first back plate 80 and the second back plate 81 can be flexibly adjusted according to the actual needs of the user, and the original setting angle is 90 degrees, but the user can adjust it to 80 degrees, 70 degrees, 60 degrees, 40 degrees, 30 degrees, 20 degrees or 10 degrees according to personal body shape and usage preferences. The first half block 811 and the second half block 812 can independently rise, fall and tilt left and right to ensure a close fit with the user's sacrum, and provide precise support and comfort through the sacral protrusion. In addition, the entire second back plate 81 can also be adjusted up and down to further optimize the support angle of the sacrum, which helps to improve the problems of sacrum upturning and ilium pronation, and also helps to balance the strength of the left and right buttocks and solve the problem of the size of the user's buttocks. The third back plate 82 remains fixed to provide a stable support base for the entire back plate. The fourth back plate 83 also adopts an adjustable design similar to the second back plate 81, which is divided into two independent parts on the left and right, and each part can be fine-tuned to rise, fall and tilt left and right. The fourth back plate 83 can be adjusted individually according to the user's posture and spinal condition, which helps to improve posture problems such as too high left ribs and too low right ribs, as well as scoliosis, chest size and cervical stability. In addition, the first back plate 80, the second back plate 81, the third back plate 82 and the fourth back plate 83 also have a certain curvature design, which provides users with good comfort and support, and helps to gradually restore the curvature of the lumbar and thoracic vertebrae from a straightened state to a normal physiological curvature.

[0152] In summary, the present application provides a backpedaling machine, which includes a fuselage frame, wherein the fuselage frame is provided with a first frame and a second frame, and the first frame and the second frame are fixedly connected by a plurality of cross beams; the first frame and the second frame both include a bending member and a track member, wherein the track member is fixedly connected to both ends of the bending member, and the sides of the track member are provided with sliding grooves; a backpedaling member, wherein both ends of the backpedaling member are slidably arranged in the sliding grooves, and the backpedaling member is provided with an arch compensation pedal; a backrest is also provided between the bending members, and one end of the backrest is provided with the fuselage frame Rotatably connected, the other end of the backrest is provided with an adjustable headrest; a legrest is also provided below the track member, and a sacrum protrusion is provided on the legrest; wherein the arch compensation foot pedal comprises: a pedal body, the pedal body is used to connect with the pedal of the inverted pedal machine; a left pedal, the left pedal is arranged on the pedal body; a right pedal, the right pedal is arranged on the pedal body, and the left pedal and the right pedal are arranged at intervals; a left lifting member is provided in the left pedal, and a right lifting member is provided in the right pedal, and the left lifting member and the right lifting member are both used to provide support for the user's arch. It can further provide support for the user's arch, optimize the stress state of the foot during the backward pedaling training process, solve the problem of compensation and femoral internal rotation caused by the existing backward pedaling machine pedal, and can improve the movement stability during training. Through the arch support, it can effectively disperse the foot pressure, reduce the risk of sports injuries, and enhance the training comfort. The arch compensation pedal can also improve the pain caused by compensation of the knee joint, hip joint and lumbar spine, avoid joint injuries, and further correct the arch of the foot, hallux valgus, calcaneal valgus and external rotation, hip shape, leg shape, different hips and different leg lengths and other problems.

[0153] It should be understood that the application of the present application is not limited to the above examples. For ordinary technicians in this field, improvements or changes can be made based on the above description. All these improvements and changes should fall within the scope of protection of the claims attached to this application.

Claims

1. A back pedaling machine, used for back pedaling training of users, characterized in that: The back pedaling machine comprises: A fuselage frame, wherein the fuselage frame is provided with a first frame and a second frame, wherein the first frame and the second frame are fixedly connected via a plurality of cross beams; the first frame and the second frame both include a bending member and a track member, wherein the track member is fixedly connected to both ends of the bending member, and the sides of the track member are both provided with sliding grooves; A reverse pedal, both ends of which are slidably arranged in the sliding groove, and the reverse pedal is provided with an arch compensation pedal; A backrest is also provided between the bending parts, one end of the backrest is rotatably connected to the fuselage frame, and the other end of the backrest is provided with an adjustable headrest; a legrest is also provided below the track part, and a sacrum protrusion is provided on the legrest; Among them, the arch compensation foot pedal includes: a pedal body, which is used to connect with the pedal of the inverted pedal machine; a left pedal, which is arranged on the pedal body; a right pedal, which is arranged on the pedal body, and the left pedal and the right pedal are arranged at intervals; a left lifting member is arranged in the left pedal, and a right lifting member is arranged in the right pedal, and the left lifting member and the right lifting member are both used to provide support for the user's arch.

2. The reverse pedaling machine according to claim 1, characterized in that: The arch compensation foot pedal comprises: The horizontal cross section of the left pedal is set to be in the shape of a left sole, the horizontal cross section of the right pedal is set to be in the shape of a right sole, the left lifting member is set at the left arch of the left sole, and the right lifting member is set at the right arch of the right sole; The left lifting member comprises: a left main body, the left main body is fixedly arranged below the left pedal; a left lifting block, the left lifting block is arranged above the left main body; A left lifting knob, the left lifting knob is arranged on the side of the left main body; the left lifting knob is used to adjust the height of the left lifting block; the right lifting member comprises: a right main body, the right main body is fixedly arranged below the right pedal; a right lifting block, the right lifting block is arranged above the right main body; a right lifting knob, the right lifting knob is arranged on the side of the right main body; the right lifting knob is used to adjust the height of the right lifting block; The left arch of the foot is provided with a left lifting through hole, and the left lifting block is telescoped up and down in the left lifting through hole; The right arch of the foot is provided with a right lifting through hole, and the right lifting block is telescoped up and down in the right lifting through hole.

3. The reverse pedaling machine according to claim 2, characterized in that: The pedal body is provided with a fixing part, and the fixing part is used to fix the rotating shafts of the left pedal and the right pedal; The pedal body is also provided with a space-avoiding groove, and the space-avoiding groove is arranged on the edge of the fixing part; The left lifting member and the right lifting member are both arranged in the air-avoiding groove, and when the left lifting member rotates clockwise along the rotating shaft of the left pedal member, the left lifting member does not contact the groove wall of the air-avoiding groove; when the right lifting member rotates counterclockwise along the rotating shaft of the right pedal member, the right lifting member does not contact the groove wall of the air-avoiding groove; The left pedal comprises a left toe portion and a left sole portion, a left latch is provided at the end of the left toe portion, and the left latch is used to fix the rotation angle of the left pedal; The right pedal includes a right toe portion and a right sole portion, and a right latch is provided at the end of the right toe portion, and the right latch is used to fix the rotation angle of the right pedal; a plurality of angle grooves are provided on the pedal body, and a plurality of the angle grooves are arranged on the periphery of the left sole portion and the right sole portion, and the plurality of angle grooves can be engaged and fixed with the right latch and the left latch.

4. The reverse pedaling machine according to claim 1, characterized in that: The backrest is configured as an angle-adjustable backboard, and the angle-adjustable backboard comprises: A back plate body, the back plate body being used for rotationally connecting with the back pedal machine; A support plate, the support plate is used to be connected to the body of the back pedal machine; the support plate is arranged below the back plate body; A lifting member, one end of which is fixedly disposed on the support plate, and the other end of which abuts against the back plate body; The backboard body is provided with a back-lying end and an abutting end which are arranged opposite to each other, the back-lying end is used for a user to lie down, and the abutting end is used to abut against the lifting member; The abutting end is provided with an abutting groove, and the other end of the lifting member abuts on the abutting groove.

5. The reverse pedaling machine according to claim 4, characterized in that: The longitudinal cross section of the abutment groove is set to be semicircular, semi-arc or arched, and the mouth of the abutment groove is set away from the back-lying end; the lifting member includes: A lifting base, the lifting base is fixedly arranged on the support plate; the lifting base is provided with a lifting hole; A lifting rod, the lifting rod is arranged in the lifting hole, and the lifting rod is telescopically moved up and down under the constraint of the lifting hole; The top end of the lifting rod is provided with an abutment member, and the abutment member is configured as a sphere or a hemisphere; When the lifting rod is telescopically moved up and down, the abutment member slides in the abutment groove to achieve angle adjustment of the back panel body.

6. The reverse pedaling machine according to claim 5, characterized in that: A rocker arm is provided on the side wall of the lifting base, and a plurality of scale grooves are provided on the rocker arm; Among them, by shaking the rocker arm, the lifting rod is driven to move up and down, thereby driving the abutment member to slide in the abutment groove to achieve the angle adjustment of the backboard body; a backboard groove is arranged on the back lying end, and a plurality of backboard plates are arranged at intervals in the backboard groove; the backboard plates are arranged in two or four pieces, and an adjustment member is arranged under the backboard plate; the longitudinal section of the back lying end is arranged in an arc shape or a curved shape.

7. The reverse pedaling machine according to claim 1, characterized in that: The backrest is configured as a backboard with an adjustable left-right angle, and the backboard with an adjustable left-right angle comprises: A rotating shaft connection part, the rotating shaft connection part is used for rotationally connecting with the inverted pedal machine; A back plate body, the back plate body being connected to the rotating shaft connecting portion; A support plate, the support plate is used to be connected to the back pedal machine body; the support plate is arranged below the back plate body; A left and right transverse member, one end of which is fixedly arranged on the support plate, and the other end of which abuts against the back plate body; the back plate body is provided with a back-lying end and an abutting end which are arranged oppositely, the back-lying end is used for the user to lie down, and the abutting end is used to abut against the left and right transverse members; The abutting end is provided with an abutting groove, and the other end of the left and right transverse moving members abuts on the abutting groove; the longitudinal cross section of the abutting groove is set to be semicircular, semi-arc or arched, and the mouth of the abutting groove is set away from the back-lying end; The transverse cross section of the abutment groove is set to be semi-arc-shaped or arch-shaped; the left and right transverse shifting members include: A fixed base, the fixed base is fixedly arranged on the support plate; A left and right lateral shift seat, the fixed base is engaged with the left and right lateral shift seat; the left and right lateral shift seat is provided with an abutment rod; the top end of the abutment rod is provided with an abutment member, and the abutment member is provided as a sphere or a hemisphere; Among them, when the left and right transverse displacement seat moves left and right, the abutment rod is driven to move left and right, and the abutment member slides left and right in the abutment groove, so as to realize the left and right angle adjustment of the back panel body; a knob member is provided on the side wall of the fixed base, and a plurality of scale marks are provided on the knob member; by twisting the knob member, the left and right transverse displacement seat is driven to move left and right, and the abutment member is driven to slide in the abutment groove, so as to realize the left and right angle adjustment of the back panel body.

8. The reverse pedaling machine according to claim 7, characterized in that: The adjustable headrest comprises: A headrest body, wherein the headrest body is detachably connected to a back plate of the inverted pedaling machine; A front-to-back moving assembly, wherein the front-to-back moving assembly is fixedly disposed on the headrest body; An up-and-down moving assembly, wherein the up-and-down moving assembly is fixedly arranged on the front-and-rear moving assembly; A headrest portion, the headrest portion is arranged on the up-and-down moving assembly; a fixed base, the fixed base is fixedly connected to the headrest body; A forward and backward movable slide, the forward and backward movable slide is slidably connected to the fixed base; a wedge protrusion is arranged on a side of the fixed base away from the headrest body, and the transverse cross section of the wedge protrusion is arranged in an inverted isosceles trapezoid; The forward and backward moving slide is provided with a wedge groove matched with the shape of the wedge protrusion, and the wedge protrusion is used to restrict the movement of the forward and backward moving slide in the up and down direction; Wherein, the forward and backward moving slide can move forward and backward under the constraint of the wedge protrusion.

9. The reverse pedaling machine according to claim 8, characterized in that: A front-to-back adjustment member is provided on the side of the fixed base away from the back plate, and the front-to-back adjustment member is used to adjust the distance of the front-to-back movable slide relative to the wedge protrusion; a gear is provided at the end of the front-to-back adjustment member, and a rack is provided at the bottom of the wedge groove, and the gear is meshed with the rack; Among them, rotating the front-to-back adjustment member drives the gear to rotate, and the gear drives the rack to move in the front-to-back direction, driving the front-to-back moving slide to move in the front-to-back direction.

10. The inverted pedaling machine according to claim 9, characterized in that: The up and down moving component comprises: A support base, the support base is fixedly arranged on the front and rear movable slide; A first fixing seat and a second fixing seat are arranged on the end surface of the support base away from the front-rear movable slide, and the first fixing seat and the second fixing seat are arranged opposite to each other; A first slide bar and a second slide bar are arranged between the first fixing seat and the second fixing seat; an outer arm slide bar is arranged between the first slide bar and the second slide bar; An adjustable upper seat, wherein the adjustable upper seat is arranged above the supporting base; The third fixing seat and the fourth fixing seat are arranged on one side of the adjusting upper seat close to the supporting base, and the third fixing seat and the fourth fixing seat are arranged opposite to each other; a third sliding rod and a fourth sliding rod are arranged between the third fixing seat and the fourth fixing seat; an inner arm sliding rod is arranged between the third sliding rod and the fourth sliding rod; the up and down moving assembly also includes: Two inner scissor arms, the two inner scissor arms are respectively fixed to the first fixing seat and the side surfaces of the inner arm slider; Two outer scissor fork arms, the two outer scissor fork arms are respectively fixed to the third fixing seat and the side surface of the outer arm sliding block; A lifting knob is disposed on the outer side of the second fixing seat, and the lifting knob is used to adjust the height of the adjusting upper seat and the supporting base; Among them, by rotating the lifting knob, the outer arm slider will move in the first slide bar and the second slide bar, and the inner arm slider will slide synchronously with the outer arm slider, and under the action of the inner scissor arm and the outer scissor arm, the height of the upper adjustment seat and the support base are adjusted together; The headrest portion comprises: A headrest member, the headrest member being fixedly arranged on the up-and-down moving assembly; A neck support member is arranged above the front-rear moving assembly and is fixedly connected to the headrest member via an L-shaped member.

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