阅读说明：本技术 一种坐式穿脱裤子的辅助设备 (Auxiliary assembly for sitting-type trousers wearing and taking-off ) 是由 马春红 邹凤楼 张欢 颜鹏飞 吴世贤 于 2021-06-07 设计创作，主要内容包括：本发明涉及生活辅助设备领域,公开一种坐式穿脱裤子的辅助设备,包括机架和升降机构,机架两侧边都安装有第一导轨,第一导轨上安装有裤夹,升降机构与裤夹连接,第一导轨包括第一轨道和第二轨道；机架为座椅,机架包括坐板,坐板两侧边都设有立柱,第一轨道水平安装在立柱上,第二轨道倾斜向下延伸到坐板下方；升降机构包括摆杆组件,摆杆组件一端铰接在机架上,其另一端与裤夹连接。老年人或者残疾人可以坐在本设备上,从而进行辅助穿脱裤子,穿脱裤子时,使用者无需弯腰或者站立在设备上就能够完成穿脱,省力省心。裤夹是通过摆动组件驱动下而沿着第一导轨移动,裤夹在第一导轨上的初始位置是可以根据使用者的身高进行调整,设备的通用性强。(The invention relates to the field of life auxiliary equipment and discloses auxiliary equipment for sitting-type trousers wearing and taking-off, which comprises a rack and a lifting mechanism, wherein first guide rails are arranged on two side edges of the rack, a trousers clamp is arranged on the first guide rails, the lifting mechanism is connected with the trousers clamp, and the first guide rails comprise a first rail and a second rail; the frame is a seat and comprises a seat plate, two side edges of the seat plate are provided with upright posts, the first rail is horizontally arranged on the upright posts, and the second rail extends downwards in an inclined manner to the lower side of the seat plate; the lifting mechanism comprises a swing rod component, one end of the swing rod component is hinged on the rack, and the other end of the swing rod component is connected with the trouser clamp. Old person or disabled person can sit on this equipment to wear to take off trousers in the supplementary, when wearing to take off trousers, the user need not to bow or stand and just can accomplish to wear to take off on the equipment, laborsaving province worry. The trousers clamp is driven by the swing assembly to move along the first guide rail, the initial position of the trousers clamp on the first guide rail can be adjusted according to the height of a user, and the universality of the device is high.)

1. The utility model provides an auxiliary assembly of trousers is worn to take off by sitting posture, includes frame (10) and elevating system (11), and first guide rail (12) are all installed on frame (10) both sides limit, install trousers on first guide rail (12) and press from both sides (13), and elevating system (11) are connected and drive it along first guide rail (12) lift, its characterized in that with trousers clamp (13):

the first guide rail (12) comprises a first rail (121) and a second rail (122) which are connected with each other, the included angle between the first rail (121) and the second rail (122) is alpha, and alpha is more than or equal to 90 degrees and less than 180 degrees;

the frame (10) is a seat, the frame (10) comprises a seat plate (101), two side edges of the seat plate (101) are respectively provided with an upright post (102), a first track (121) is horizontally arranged on the upright posts (102) and arranged on the side edge of the seat plate (101), and a second track (122) obliquely and downwardly extends to the lower part of the seat plate (101);

the lifting mechanism (11) comprises a driving mechanism (111) and a swing rod assembly (112), the driving mechanism (111) is installed on the rack (10) and is arranged under the seat (101), one end of the swing rod assembly (112) is hinged to the rack (10), the other end of the swing rod assembly is connected with the trouser clamp (13), and the driving mechanism (111) is connected with the swing rod assembly (112) and drives the swing rod assembly to swing.

2. An aid to sit-on and take-off trousers according to claim 1, characterized in that: pendulum rod subassembly (112) include swinging arms (1121) and pull rod (1122), swinging arms (1121) one end articulates on frame (10), its other end is articulated with pull rod (1122), pull rod (1122) other end is connected with trousers clamp (13), be equipped with guide hole (1123) that the shape is rectangular shape on swinging arms (1121), actuating mechanism (111) include second guide rail (1111) and slider (1112), slider (1112) slide on second guide rail (1111), guide arm (1113) are all installed to slider (1112) both sides, the outer tip of guide arm (1113) stretches into in guide hole (1123).

3. An aid to sit-on and take-off trousers according to claim 2, characterized in that: the driving mechanism (111) further comprises a motor (1114) and a screw rod (1115), the motor (1114) is connected with the screw rod (1115) and drives the screw rod (1115) to rotate, two ends of the screw rod (1115) are mounted on the rack (10) through bearings, and the screw rod (1115) penetrates through the sliding block (1112) and is in threaded connection with the sliding block.

4. An aid to sit-on and take-off trousers according to claim 2, characterized in that: be equipped with track groove (123) and guide way (124) that extend to other end from its one end on first guide rail (12), guide way (124) are established at the inboard edge of first guide rail (12) and are communicate with track groove (123), be fixed with connecting axle (14) on trousers press from both sides (13), gyro wheel (15) are installed to the connecting axle (14) other end, the connecting axle (14) other end passes through guide way (124) and stretches into in track groove (123) and with the end connection of pull rod (1122), the both sides limit of pull rod (1122) all is equipped with gyro wheel (15), gyro wheel (15) roll in track groove (123).

5. An aid to sit-on and take-off trousers according to claim 1, characterized in that: the trousers clamp (13) comprises a clamp body (131) and a pressing block (132), the clamp body (131) is a U-shaped clamp body, a plurality of teeth (1311) are arranged on one inner side wall of the clamp body (131), a strip-shaped through hole (1312) is formed in the other inner side wall of the clamp body (131), one end of the pressing block (132) is hinged to the clamp body (131), the middle of the pressing block (132) extends into the position right above the teeth (1311) through the through hole (1312), and the other end of the pressing block (132) extends out of the through hole (1312).

6. An aid to sit-on and take-off trousers according to claim 5, characterized in that: briquetting (132) include first arc (1321), second arc (1322) and pressure head (1323), first arc (1321) and second arc (1322) integrated into one piece, on first arc (1321) one end passed through round pin axle hinged clamp body (131), tooth (1311) top and be connected with second arc (1322) are stretched into through-hole (1312) to its other end, second arc (1322) kickup and stretch out through-hole (1312) and be connected with pressure head (1323).

7. An aid for putting on and taking off trousers according to any of claims 1-6, characterized in that: a handrail (105) is fixed on the upright post (102).

8. An aid to sit-on and take-off trousers according to claim 7, characterized in that: a supporting plate (106) used for supporting the arm is arranged on the armrest (105), a supporting frame (103) fixedly connected with the upright post (102) is arranged on the rack (10), the supporting frame (103) is arranged under the seat plate (101), and a scissor jack (16) used for lifting the seat plate (101) is fixed on the supporting frame (103).

9. An aid to sit-on and take-off trousers according to claim 8, wherein: the lower end surface of the supporting frame (103) is provided with a pedal (17).

10. An aid to sit-on and take-off trousers according to claim 8, wherein: a backrest (104) is arranged between the two upright posts (102), and a gap (100) is arranged between the backrest (104) and the seat plate (101).

Technical Field

The invention relates to the field of life auxiliary equipment, in particular to auxiliary equipment for sitting-type trousers wearing and taking-off.

Background

The old person leads to the life inconvenience because the decline of health coordination ability, especially wears to take off trousers in-process, needs the old person to bow, lift the leg, the upper limbs transfers action such as trouser legs to carry out in coordination, and is comparatively difficult for the old person, can cause old person's waist damage even, problem such as tumble influences old person's health. This problem is more prominent as society ages more.

Patents CN110604448B, CN108926217B, CN111568143A, CN110604447A, etc. provide an auxiliary trousers wearing and taking off device, which realizes automatic trousers wearing and taking off on the premise that the elderly stands.

CN110604447A realizes that old person stands to wear to take off trousers through liftable trample mechanism and waist of trousers hoist mechanism. But this equipment old person or disabled person need stand on equipment, realize wearing to take off trousers, use relatively to be restricted, and first actuating mechanism is the top of installation frame among this technical scheme simultaneously, and U-shaped trousers frame is the slope slip on the guide bar, makes people unable to stand on the step board like this. The solutions disclosed in the above-mentioned patents or patent applications are all stand-up wearing and removing pants, i.e. such stand-up wearing and removing pants are easy to implement.

Disclosure of Invention

The invention provides an auxiliary device for sitting-type trousers wearing and taking-off, aiming at the defect that trousers cannot be worn and taken off by sitting in the prior art.

In order to solve the technical problem, the invention is solved by the following technical scheme:

a sitting-type trousers wearing and taking-off auxiliary device comprises a rack and a lifting mechanism, wherein first guide rails are arranged on two side edges of the rack, a trousers clamp is arranged on the first guide rails, and the lifting mechanism is connected with the trousers clamp and drives the trousers clamp to lift along the first guide rails;

the first guide rail comprises a first rail and a second rail which are connected with each other, the included angle between the first rail and the second rail is alpha, and alpha is more than or equal to 90 degrees and less than 180 degrees;

the frame is a seat and comprises a seat plate, two side edges of the seat plate are provided with stand columns, the first track is horizontally arranged on the stand columns and arranged on the side edges of the seat plate, and the second track extends downwards in an inclined mode to the position below the seat plate;

the lifting mechanism comprises a driving mechanism and a swing rod assembly, the driving mechanism is installed on the rack and is arranged under the seat plate, one end of the swing rod assembly is hinged to the rack, the other end of the swing rod assembly is connected with the trouser clamp, and the driving mechanism is connected with the swing rod assembly and drives the swing rod assembly to swing.

Preferably, the swing rod assembly comprises a swing rod and a pull rod, one end of the swing rod is hinged to the rack, the other end of the swing rod is hinged to the pull rod, the other end of the pull rod is connected with the trouser clamp, a guide hole in a long strip shape is formed in the swing rod, the driving mechanism comprises a second guide rail and a sliding block, the sliding block slides on the second guide rail, guide rods are arranged on two sides of the sliding block, and the outer end portions of the guide rods extend into the guide hole.

Old person or disabled person can sit on this equipment to wear to take off trousers in the supplementary, when wearing to take off trousers, the user need not to bow or stand and just can accomplish to wear to take off on the equipment, laborsaving province worry. The trousers clamp is driven by the swing assembly to move along the first guide rail, the initial position of the trousers clamp on the first guide rail can be adjusted according to the height of a user, and the universality of the device is high.

Preferably, the driving mechanism further comprises a motor and a screw rod, the motor is connected with the screw rod and drives the screw rod to rotate, two ends of the screw rod are mounted on the rack through bearings, and the screw rod penetrates through the sliding block and is in threaded connection with the sliding block. The lead screw rotates and drives the sliding block to move along the second guide rail, the moving speed and the initial position of the sliding block are conveniently controlled, and the precision is high.

Preferably, the first guide rail is provided with a rail groove and a guide groove, the rail groove and the guide groove extend from one end to the other end of the first guide rail, the guide groove is formed in the inner side edge of the first guide rail and communicated with the rail groove, the trouser clamp is fixedly provided with a connecting shaft, the other end of the connecting shaft is provided with a roller, the other end of the connecting shaft extends into the rail groove through the guide groove and is connected with the end part of the pull rod, the two side edges of the pull rod are provided with rollers, and the rollers roll in the rail groove. The trousers clamp can slide on the track groove through the idler wheel, and the trousers clamp moving stability is high. The guide groove facilitates the connecting shaft to move on the first guide rail, so that the pull rod can pull the connecting shaft to swing.

Preferably, the trouser clamp comprises a clamp body and a pressing block, the clamp body is a U-shaped clamp body, a plurality of teeth are arranged on one inner side wall of the clamp body, a through hole in a long strip shape is formed in the other inner side wall of the clamp body, one end of the pressing block is hinged to the clamp body, the middle of the pressing block extends into the position right above the teeth through the through hole, and the other end of the pressing block extends out of the through hole. The pressing block can press the waist ring of the trousers on the teeth of the clamp body, so that the trousers can be firmly clamped by the trousers clamp, and the phenomenon that the trousers are separated in the moving process is prevented.

As preferred, the briquetting includes first arc, second arc and pressure head, first arc and second arc integrated into one piece, and on first arc one end passed through the articulated clamp body of round pin axle, its other end stretched into tooth top and was connected with the second arc through the through-hole, and the second arc kickup stretched out the through-hole and is connected with the pressure head. The first arc-shaped plate and the second arc-shaped plate have certain elastic deformation, so that the pressing block can tightly press the trouser waist ring on the teeth. The pressure head makes things convenient for people to press to it compresses tightly on the clamp body to relieve the second arc.

Preferably, a handrail is fixed to the pillar. The armrests are used for supporting a user, namely the buttocks of the user are suspended on the seat board, so that the trouser legs can pull the trouser waist ring to the waist position of the user.

Preferably, the armrest is provided with a supporting plate for supporting the arm, the frame is provided with a supporting frame fixedly connected with the upright post, the supporting frame is arranged under the seat plate, and the supporting frame is fixed with a scissor jack for lifting the seat plate. When the arms of people are supported on the supporting plate, the scissor jack can drive the seat plate to descend, so that the buttocks of a user are suspended on the seat plate, and the trouser waist ring is pulled to the waist position by the trouser clamp conveniently. The supporting force of the arm is more labor-saving than that of the palm, so that the user can save more labor by the suspension mode.

Preferably, a foot pedal is mounted on the lower end surface of the support frame. The pedal plate is convenient for a user to tread, provides a force application point and is convenient for the user to lift the hip.

Preferably, a backrest is arranged between the two upright posts, and a gap is arranged between the backrest and the seat plate. The clearance is used for supplying the space that the formula jack of cutting goes up and down to use, satisfies the people of different heights and uses, improves the commonality of this equipment.

Due to the adoption of the technical scheme, the invention has the remarkable technical effects that:

old person or disabled person can sit on this equipment to wear to take off trousers in the supplementary, when wearing to take off trousers, the user need not to bow or stand and just can accomplish to wear to take off on the equipment, laborsaving province worry. The trousers clamp is driven by the swing assembly to move along the first guide rail, the initial position of the trousers clamp on the first guide rail can be adjusted according to the height of a user, and the universality of the device is high.

Drawings

Fig. 1 is a schematic structural view of the present invention.

Fig. 2 is a schematic view of the combination of the first guide rail, the pants folder and the swing link assembly of fig. 1.

Fig. 3 is a schematic view of the combination structure of the pants folder and the swing link assembly in fig. 2.

Fig. 4 is a schematic structural view of the scissor jack of fig. 1.

Fig. 5 is a schematic view of the structure of the driving mechanism in fig. 1.

The names of the parts indicated by the numerical references in the above figures are as follows:

10-frame

11-lifting mechanism

12-first guide

13-trousers clip

14-connecting shaft

15-roller

16-scissor jack

17-foot pedal

100-gap, 101-seat plate, 102-upright post, 103-support frame, 104-backrest, 105-armrest, 106-support plate

111-driving mechanism, 112-oscillating bar component

121-first rail, 122-second rail, 123-rail groove, 124-guide groove

131-clamp, 132-briquetting

1111-second guide rail, 1112-slide block, 1113-guide rod, 1114-motor, 1115-screw rod

1121 oscillating lever, 1122 pull rod, 1123 guide hole

1311-teeth, 1312-through hole, 1321-first arc plate, 1322-second arc plate, 1323-pressure head

Detailed Description

The invention will be described in further detail below with reference to the accompanying figures 1-5 and examples.

Example 1

The utility model provides a sitting posture is worn to take off auxiliary assembly of trousers, includes frame 10 and elevating system 11, and first guide rail 12 is all installed on frame 10 both sides limit, installs trousers clamp 13 on first guide rail 12, and trousers clamp 13 can remove along first guide rail 12, and trousers clamp 13 is used for pressing from both sides tight trousers waist circle. The lifting mechanism 11 is connected with the trouser clamp 13 and drives the trouser clamp to lift along the first guide rail 12. When the trousers are worn, the trousers clamp 13 pulls the waist ring to move along the first guide rail 12 and pulls the waist ring to the waist position of the user; when people take off the trousers, the trousers clamp 13 clamps the waist ring in advance, and the trousers clamp 13 drives the waist ring to move to the position of the bottom of the trousers.

First guide rail 12 includes interconnect's first track 121 and second track 122, first track 121 is the horizontal track, second track 122 is the slope track, the contained angle between first track 121 and the second track 122 is alpha, alpha < 180 is more than or equal to 90 for 90, this embodiment alpha is 90, first guide rail 12 is the formula of bending, first guide rail 12 can be as an organic whole, also can be split type, first track 121 can be with second track 122 integrated into one piece bending molding promptly, also can splice and form, this embodiment both are the concatenation and form.

The frame 10 is a chair, and the frame 10 is convenient for a user to put on and take off trousers, thereby saving worry and labor. The frame 10 comprises a seat board 101, a user sits on the seat board 101, upright posts 102 are arranged on both sides of the seat board 101, a first rail 121 is horizontally arranged on the upright posts 102 and arranged on the sides of the seat board 101, and a second rail 122 extends obliquely downwards to the lower side of the seat board 101, namely the second rail 122 extends to the position of trouser legs;

the lifting mechanism 11 comprises a driving mechanism 111 and a swing rod assembly 112, the driving mechanism 111 is installed on the frame 10 and is arranged under the seat plate 101, one end of the swing rod assembly 112 is hinged on the frame 10, the other end of the swing rod assembly is connected with the trouser clamp 13, the driving mechanism 111 is connected with the swing rod assembly 112 and drives the swing rod assembly 112 to swing, and the swing rod assembly 112 is installed on both sides of the frame 10.

The swing link assembly 112 includes a swing link 1121 and a pull link 1122, one end of the swing link 1121 is hinged to the rack 10, the other end of the swing link 1121 is hinged to the pull link 1122, the other end of the pull link 1122 is connected to the pants folder 13, and the swing link 1121 is provided with a guide hole 1123 in the shape of a long strip. The mounting plate is installed on the rack 10, the driving mechanism 111 is installed on the mounting plate, the driving mechanism 111 comprises a second guide rail 1111 and a sliding block 1112, the sliding block 1112 slides on the second guide rail 1111, the second guide rail 1111 is parallel to the first track 121, and the second guide rail 1111 is fixed on the mounting plate through implementation. Guide rods 1113 are installed on two sides of the sliding block 1112, the outer end portions of the guide rods 1113 extend into the guide holes 1123, the guide rods 1113 on the two sides of the sliding block 1112 are integrated, the guide rods 1113 can drive the swinging rods 1121 to move simultaneously, and the two pull rods 1122 can synchronously pull the trousers clamp 13 to move along the first guide rail 12, so that the trousers can be put on and taken off. When the power mechanism on the driving mechanism 111 is started, the slider 1112 linearly slides along the second guide rail 1111, the slider 1112 drives the guide rods 1113 at both sides to move on the guide holes 1123, the guide rods 1113 drive the swinging rod 1121 to swing, the swinging rod 1121 pulls the pull rod 1122, and the pull rod 1122 pulls the pants folder 13 to move along the first guide rail 12.

The driving mechanism 111 further comprises a motor 1114 and a screw rod 1115, the motor 1114 is connected with the screw rod 1115 and drives the screw rod 1115 to rotate, two ends of the screw rod 1115 are mounted on the frame 10 through bearings, a positioning plate is mounted on the mounting plate, the motor 1114 is mounted on the positioning plate, an output shaft of the motor 1114 extends out of the positioning plate and is provided with a driving wheel, one end of the screw rod 1115 penetrates out of the positioning plate and is provided with a driven wheel, the driving wheel and the driven wheel are connected through a belt, the screw rod 1115 penetrates through the sliding block 1112 and is in threaded connection with the sliding block 1112, and the screw rod 1115 rotates and drives the sliding block 1112 to move.

The first rail 12 is provided with a rail groove 123 extending from one end to the other end thereof and a guide groove 124, the rail groove 123 is formed by bending the first rail 12, and the cross section of the rail groove 123 is in a shape of a letter "convex". The guide way 124 is established at the inboard edge of first guide rail 12 and communicates with track groove 123, be fixed with connecting axle 14 on the trousers press from both sides 13, gyro wheel 15 is installed to the connecting axle 14 other end, the connecting axle 14 other end stretch into track groove 123 through guide way 124 and with the end connection of pull rod 1122, connecting axle 14 is connected between trousers press from both sides 13 and pull rod 1122, the both sides limit of pull rod 1122 all is equipped with gyro wheel 15, gyro wheel 15 rolls in track groove 123, gyro wheel 15 can make the more smooth and easy removal along first guide rail 12 of trousers press from both sides 13.

The pants folder 13 includes a folder 131 and a pressing block 132, the folder 131 is a U-shaped folder, a plurality of teeth 1311 are disposed on one inner sidewall of the folder 131, a strip-shaped through hole 1312 is disposed on the other inner sidewall of the folder 131, and the through hole 1312 is disposed opposite to the teeth 1311. One end of the pressing block 132 is hinged to the clamp body 131, the middle of the pressing block 132 extends into the position right above the tooth 1311 through the through hole 1312, and the other end of the pressing block 132 extends out of the through hole 1312. The pressing piece 132 is used for clamping the waist ring on the clamp body 131, and the teeth 1311 are used for increasing friction force, so that the waist ring is not easy to be separated from the trousers clamp 13 during moving.

The pressing block 132 comprises a first arc-shaped plate 1321, a second arc-shaped plate 1322 and a pressing head 1323, wherein the bending radius of the first arc-shaped plate 1321 is smaller than that of the second arc-shaped plate 1322, and the first arc-shaped plate 1321 and the second arc-shaped plate 1322 form a bent V shape. The first arc-shaped plate 1321 and the second arc-shaped plate 1322 are integrally formed, one end of the first arc-shaped plate 1321 is hinged to the clamp body 131 through a pin shaft, the other end of the first arc-shaped plate 1321 extends above the teeth 1311 through the through hole 1312 and is connected with the second arc-shaped plate 1322, and the second arc-shaped plate 1322 is bent upwards and extends out of the through hole 1312 to be connected with the pressure head 1323. When people need to clamp the waist ring, the pressure head 1323 is manually pressed, the second arc-shaped plate 1322 extrudes the first arc-shaped plate 1311 to be bent, so that the gap between the second arc-shaped plate 1322 and the teeth 1311 is increased, people clamp the waist ring into the gap, then the pressure head 1323 is loosened, the first arc-shaped plate 1321 and the second arc-shaped plate 1322 are reset, and the waist ring is pressed on the teeth 1311 by the second arc-shaped plate 1322.

The upright post 102 is fixed with a handrail 105, the handrail 105 is made of silica gel, is non-toxic and harmless, is anti-skidding and is convenient for a user to support, and the handrail 105 is used for supporting the user, namely the hip of the user is suspended on the seat board 101, so that the trouser clamp 13 can pull the waist of the trouser waist ring to the waist of the user.

In this equipment in-service use, need to press from both sides 13 fixed trousers waist circle through the trousers, elevating system 11 drives trousers and presss from both sides 13 gliding, and when the user sat on seat 101, elevating system 11 drove trousers and presss from both sides 13 and lift along second track 122, and up to first track 121, the user propped up the buttock through the handrail and unsettled on seat 101, and trousers press from both sides 13 take user's waist position with trousers waist circle, need not that the user just can accomplish the trousers process of wearing by bowing. When taking off the trousers: the user firstly holds the handrail with the hand, and when the trousers are taken off to the second rail 122, the seat cushion is in a sitting state, and after the trousers are taken off, the trousers clamp 13 drives the trousers to the seat cushion 101 to be picked up by the user conveniently, so that the trousers taking-off process is completed.

Example 2

Embodiment 2 has substantially the same features as embodiment 1 except that the angle between the first rail 121 and the second rail 122 is 135 °.

The armrest 105 is provided with a support plate 106 for supporting an arm, the support plate 106 is tied on the armrest 105, the rack 10 is provided with a support frame 103 fixedly connected with the upright post 102, the support frame 103 is arranged under the seat plate 101, the support frame 103 is fixed with a scissor jack 16 for lifting the seat plate 101, and the scissor jack 16 comprises a servo motor, a jack and a gear train. The upper part of the jack is connected with the seat plate 101, and the servo motor drives the gear train to reduce speed and then drives the jack to drive the seat plate 101 to lift, so that the trousers are prevented from being clamped when the trousers are put on or taken off the first rail 121.

When the arms of the user are supported on the supporting plate 106, the scissor jack 16 can drive the seat plate 101 to descend, so that the buttocks of the user are suspended on the seat plate 101, and the trouser waist ring is pulled to the waist position by the trouser clamp. The supporting force of the arm is more labor-saving than that of the palm, so that the user can save more labor by the suspension mode.

The lower end surface of the support frame 103 is provided with a pedal 17, the height of the pedal 17 is adjustable, and the pedal 17 can provide a force point, so that a user can lift the hip conveniently.

Example 3

Embodiment 3 is substantially the same as embodiment 1 or the features except that the angle between the first rail 121 and the second rail 122 is 170 °.

A backrest 104 is arranged between the two upright posts 102, the backrest 104 is used for a user to lean on, the user feels more comfortable when using the equipment, a gap 100 is arranged between the backrest 104 and the seat plate 101, and the gap 100 is used for a space for lifting the scissor jack 16, so that the requirement of people with different heights is met, and the universality of the equipment is improved.