CN108144143B

CN108144143B - Gynaecology and obstetrics is with multi-functional galactagogue equipment

Info

Publication number: CN108144143B
Application number: CN201711460771.9A
Authority: CN
Inventors: 高少波; 安姝靖; 姜爱萍; 谭慧芳; 胡云辉
Original assignee: Affiliated Hospital of University of Qingdao
Current assignee: Affiliated Hospital of University of Qingdao
Priority date: 2017-12-28
Filing date: 2017-12-28
Publication date: 2020-09-22
Anticipated expiration: 2037-12-28
Also published as: CN108144143A

Abstract

The invention relates to lactation promoting equipment, in particular to multifunctional lactation promoting equipment for obstetrics and gynecology. The invention aims to provide the multifunctional lactation promoting equipment for the obstetrics and gynecology department, which replaces manpower with machinery and has high lactation promoting efficiency. In order to solve the technical problem, the invention provides a multifunctional lactation promoting device for obstetrics and gynecology department, which comprises a bed, a first bracket, a collecting box, a second bracket, a sliding rail, a first sliding block, a third bracket, a motor and the like; the right-hand member fixedly connected with first support at the bed, at the left side fixedly connected with collecting box of first support, at the top fixedly connected with second support of first support, at the bottom fixedly connected with slide rail of second support. The lactation promoting device has the function of promoting lactation of the puerpera, not only realizes quick lactation of the puerpera, but also realizes the functions of massaging breasts and improving the lactation promoting efficiency, and has the characteristics of convenience in use, safety in use, simplicity in operation, low manufacturing cost and the like.

Description

Gynaecology and obstetrics is with multi-functional galactagogue equipment

Technical Field

The invention relates to lactation promoting equipment, in particular to multifunctional lactation promoting equipment for obstetrics and gynecology.

Background

The prior lactation promoting method mainly comprises the steps of traditional Chinese medicine, massage and lactation promoting soup. The massage lactation promoting treatment can promote local capillary vessel expansion, increase vascular permeability, accelerate blood flow speed, improve local blood circulation, and is beneficial to milk secretion and discharge.

Many lying-in women can breast milk not enough, and lying-in women is often anxious like fire, and a lot of people use some medicines and food to influence the secretion of breast milk, when breast milk can not reach child's demand, need stimulate the secretion of breast milk volume through the method of inducing lactation, and current lactation technique not only needs the manual work to induce lactation, does not have one kind and is exclusively used in the equipment of inducing lactation, consequently needs a machinery to replace artifical, the efficient multi-functional lactation equipment for gynaecology and obstetrics of inducing lactation urgently.

Disclosure of Invention

(1) Technical problem to be solved

The invention aims to overcome the defects that when breast milk does not meet the requirements of children, the secretion of the breast milk amount needs to be stimulated by a lactation method, the conventional lactation technology needs manual lactation, and no special lactation device exists, and the technical problem to be solved by the invention is to provide the gynecological multifunctional lactation device which replaces manual labor mechanically and has high lactation efficiency.

(2) Technical scheme

In order to solve the technical problems, the invention provides a multifunctional lactation promoting device for obstetrics and gynecology department, which comprises a bed, a first support, a collecting box, a second support, a sliding rail, a first sliding block, a third support, a motor, a cam, a squeezing box, a guide rod, a first baffle, a first spring, a first roller, a squeezing plate, a first suction pipe, a second suction pipe, a one-way valve and a rubber cover, wherein the right end of the bed is fixedly connected with the first support, the left side of the first support is fixedly connected with the collecting box, the top end of the first support is fixedly connected with the second support, the bottom end of the second support is fixedly connected with the sliding rail, the sliding rail is slidably connected with the first sliding block, the bottom end of the first sliding block is fixedly connected with the third support, the motor is fixedly connected above the right side of the third support, the cam is in interference fit connection with an output shaft of the motor, the right side of the third support, open at the top of extrusion case has the guiding hole, slidingtype connection has the guide bar in the guiding hole, the first baffle of fixedly connected with on the guide bar, the first spring of bottom fixedly connected with at first baffle, the bottom and the extrusion case fixed connection of first spring, the cooperation has the stripper plate in the extrusion case, the bottom fixed connection of stripper plate and guide bar, top rotary type at the guide bar is connected with first roller, first roller and cam contact, the first straw of right side fixedly connected with at the stripper plate, the bottom fixedly connected with second straw at the extrusion case, be equipped with check valve in second straw and first straw, bottom fixedly connected with rubber boot at the second straw.

Preferably, still including the second slider, the fourth support, first branch, first cylinder and second branch, slidingtype connection has the second slider in the bottom of slide rail, at the bottom fixedly connected with fourth support of second slider, at the first branch of left side below fixedly connected with of fourth support, at the first cylinder of below left side fixedly connected with of first branch, fixedly connected with second branch on the telescopic link of first cylinder, second branch and rubber boot fixed connection.

Preferably, still including third branch, the sliding sleeve, the slide bar, the second baffle, second spring and first push pedal, below left side fixedly connected with third branch at the second support, bottom fixedly connected with sliding sleeve at third branch, slidingtype connection has the slide bar in the sliding sleeve, the right-hand member of slide bar and the left end fixed connection of first slider, left portion fixedly connected with second baffle at the slide bar, right-hand member fixedly connected with second spring at the second baffle, the right-hand member of second spring and the left end fixed connection of sliding sleeve, left end fixedly connected with first push pedal at the slide bar.

Preferably, the rubber hood further comprises a second cylinder and a second roller, the second cylinder is fixedly connected to the bottom end of the third support, the second roller is fixedly connected to a telescopic rod of the second cylinder, and the second roller is in contact with the rubber hood.

Preferably, still including fourth branch, swinging arms, third spring, footboard and second push pedal, at the left side top fixedly connected with fourth branch of bed, at the upper portion fixedly connected with swinging arms of fourth branch, at two third springs of the right side fixedly connected with of fourth branch, at the bottom fixedly connected with footboard of swinging arms, the left side of footboard and the right-hand member fixed connection of two third springs, at the top fixedly connected with second push pedal of swinging arms.

The working principle is as follows: when people need to stimulate lactation, firstly, a user wipes breasts with a towel, then the user lies on a bed, the user can push the third support to move left and right, the third support moves left and right to drive the motor, the cam, the squeezing box, the guide rod, the first baffle plate, the first spring, the first roller, the squeezing plate, the first suction pipe, the second suction pipe, the one-way valve and the rubber cover to move left and right, when the third support moves to a proper position, the rubber cover is pressed on the breasts, then the motor is started, the motor drives the cam to rotate through the output shaft, the cam rotates to drive the first roller to move downwards, the first roller moves downwards to drive the guide rod to move downwards, the guide rod moves downwards to drive the squeezing plate to squeeze the squeezing box, when the cam rotates to a position with a lower inclination, the first baffle plate moves upwards due to the elastic force of the first spring, the first baffle plate moves upwards to drive the guide, the guide rod reciprocates and drives the stripper plate and extrude the extrusion case in succession, because all be equipped with check valve on first straw and second straw, so the second straw is to the milk in the breast absorb the extrusion incasement, then the first straw of extrusion case rethread is to milk absorb in the collection box to reach the function of stimulating milk to the lying-in woman, after using up, it can to close the motor.

Because still including the second slider, the fourth support, first branch, first cylinder and second branch, slidingtype connection has the second slider in the bottom of slide rail, at the bottom fixedly connected with fourth support of second slider, at the first branch of left side below fixedly connected with of fourth support, at the first cylinder of below left side fixedly connected with of first branch, fixedly connected with second branch on the telescopic link of first cylinder, second branch and rubber boot fixed connection. Therefore, when a user needs to attach the rubber cover to the breast tightly, the first air cylinder is started firstly, the first air cylinder drives the second supporting rod to move downwards through the telescopic rod, and the second supporting rod moves downwards to drive the rubber cover to move downwards, so that the function of attaching the rubber cover to the breast tightly is achieved.

Because still including the third branch, the sliding sleeve, the slide bar, the second baffle, second spring and first push pedal, below left side fixedly connected with third branch at the second support, bottom fixedly connected with sliding sleeve at third branch, slidingtype connection has the slide bar in the sliding sleeve, the right-hand member of slide bar and the left end fixed connection of first slider, left part fixedly connected with second baffle at the slide bar, right-hand member fixedly connected with second spring at the second baffle, the right-hand member of second spring and the left end fixed connection of sliding sleeve, left end fixedly connected with first push pedal at the slide bar. When the rubber cover needs to move, the first push plate is pushed at first, the first push plate drives the slide rod to move rightwards, the slide rod moves rightwards to push the third support and the fourth support to move rightwards, the third support and the fourth support move rightwards to drive the rubber cover to move rightwards, and the slide rod can return to the original position due to the elastic force of the second spring, so that the function of adjusting the position by moving the rubber cover leftwards and rightwards is achieved.

Because still including second cylinder and second roller, at the bottom fixedly connected with second cylinder of third support, fixedly connected with second roller on the telescopic link of second cylinder, second roller and rubber hood contact. When carrying out the lactation, at first start the second cylinder, the second cylinder drives the second roller through the telescopic link and reciprocates, because the second roller contacts with the rubber casing to reach the function that the second roller massages the breast, impel the efficiency of lactation.

Because still including fourth branch, swinging arms, third spring, footboard and second push pedal, at the left side top fixedly connected with fourth branch of bed, at the upper portion fixedly connected with swinging arms of fourth branch, at two third springs of the right side fixedly connected with of fourth branch, at the bottom fixedly connected with footboard of swinging arms, the left side of footboard and the right-hand member fixed connection of two third springs, at the top fixedly connected with second push pedal of swinging arms. Therefore, when the foot pedal is used, a lying-in woman can step on the pedal to move the pedal leftwards, the pedal moves leftwards to drive the bottom of the swing rod to move leftwards due to the rotary connection of the swing rod and the fourth supporting rod, the bottom of the swing rod moves leftwards to drive the top of the swing rod to move rightwards, and the top of the swing rod moves rightwards to push the first push plate, so that the foot regulation function of the lying-in woman is achieved.

(3) Advantageous effects

The lactation promoting device has the function of promoting lactation of the puerpera, not only realizes quick lactation of the puerpera, but also realizes the functions of massaging breasts and improving the lactation promoting efficiency, and has the characteristics of convenience in use, safety in use, simplicity in operation, low manufacturing cost and the like.

Drawings

Fig. 1 is a schematic front view of a first embodiment of the present invention.

Fig. 2 is a schematic front view of a second embodiment of the present invention.

Fig. 3 is a schematic front view of a third embodiment of the present invention.

Fig. 4 is a schematic front view of a fourth embodiment of the present invention.

Fig. 5 is a schematic front view of a fifth embodiment of the present invention.

The labels in the figures are: 1-bed, 2-first support, 3-collection box, 4-second support, 5-slide, 6-first slide, 7-third support, 8-motor, 9-cam, 10-extrusion box, 11-guide hole, 12-guide bar, 13-first baffle, 14-first spring, 15-first roller, 16-extrusion plate, 17-first suction pipe, 18-second suction pipe, 19-one-way valve, 20-rubber cover, 211-second slide, 212-fourth support, 213-first support, 214-first cylinder, 215-second support, 221-third support, 222-slide, 223-slide, 224-second baffle, 225-second spring, 226-first push plate, 23-second cylinder, 24-second roller, 25-fourth strut, 26-oscillating lever, 27-third spring, 28-pedal, 29-second push plate.

Detailed Description

The invention is further described below with reference to the figures and examples.

Example 1

A multifunctional lactation promoting device for obstetrics and gynecology department is shown in figures 1-5 and comprises a bed 1, a first support 2, a collection box 3, a second support 4, a slide rail 5, a first slide block 6, a third support 7, a motor 8, a cam 9, an extrusion box 10, a guide rod 12, a first baffle 13, a first spring 14, a first roller 15, an extrusion plate 16, a first suction pipe 17, a second suction pipe 18, a one-way valve 19 and a rubber cover 20, wherein the right end of the bed 1 is fixedly connected with the first support 2, the left side of the first support 2 is fixedly connected with the collection box 3, the top end of the first support 2 is fixedly connected with the second support 4, the bottom end of the second support 4 is fixedly connected with the slide rail 5, the slide rail 5 is slidably connected with the first slide block 6, the bottom end of the first slide block 6 is fixedly connected with the third support 7, the right upper side of the third support 7 is fixedly connected with the motor 8, a cam 9 is connected on the output shaft of the motor 8 in an interference manner, a squeezing box 10 is fixedly connected on the right side of the third bracket 7, a guide hole 11 is arranged at the top of the extrusion box 10, a guide rod 12 is connected in the guide hole 11 in a sliding way, a first baffle 13 is fixedly connected on the guide rod 12, a first spring 14 is fixedly connected at the bottom end of the first baffle 13, the bottom end of the first spring 14 is fixedly connected with the extrusion box 10, a squeezing plate 16 is matched in the squeezing box 10, the squeezing plate 16 is fixedly connected with the bottom end of the guide rod 12, a first roller 15 is rotatably connected to the top of the guide bar 12, the first roller 15 is in contact with the cam 9, a first suction pipe 17 is fixedly connected to the right side of the extrusion plate 16, a second suction pipe 18 is fixedly connected to the bottom end of the extrusion box 10, a one-way valve 19 is arranged in the second suction pipe 18 and the first suction pipe 17, and a rubber cover 20 is fixedly connected with the bottom end of the second suction pipe 18.

Example 2

The sliding type rubber hood is characterized by further comprising a second sliding block 211, a fourth support 212, a first support rod 213, a first air cylinder 214 and a second support rod 215, the second sliding block 211 is connected to the bottom end of the sliding rail 5 in a sliding mode, the fourth support 212 is fixedly connected to the bottom end of the second sliding block 211, the first support rod 213 is fixedly connected to the lower portion of the left side of the fourth support 212, the first air cylinder 214 is fixedly connected to the left side of the lower portion of the first support rod 213, the second support rod 215 is fixedly connected to the telescopic rod of the first air cylinder 214, and the second support rod 215 is fixedly connected with the rubber hood 20.

Example 3

The sliding type rack further comprises a third supporting rod 221, a sliding sleeve 222, a sliding rod 223, a second baffle 224, a second spring 225 and a first push plate 226, the third supporting rod 221 is fixedly connected to the left side below the second support 4, the sliding sleeve 222 is fixedly connected to the bottom end of the third supporting rod 221, the sliding rod 223 is slidably connected in the sliding sleeve 222, the right end of the sliding rod 223 is fixedly connected with the left end of the first sliding block 6, the second baffle 224 is fixedly connected to the left portion of the sliding rod 223, the second spring 225 is fixedly connected to the right end of the second baffle 224, the right end of the second spring 225 is fixedly connected with the left end of the sliding sleeve 222, and the first push plate 226 is fixedly connected to the left end of the sliding rod 223.

Example 4

The rubber hood further comprises a second cylinder 23 and a second roller 24, the second cylinder 23 is fixedly connected to the bottom end of the third support 7, the second roller 24 is fixedly connected to an expansion rod of the second cylinder 23, and the second roller 24 is in contact with the rubber hood 20.

The bed is characterized by further comprising a fourth supporting rod 25, a swinging rod 26, third springs 27, pedals 28 and a second push plate 29, wherein the fourth supporting rod 25 is fixedly connected to the upper portion of the left side of the bed 1, the swinging rod 26 is fixedly connected to the upper portion of the fourth supporting rod 25, the two third springs 27 are fixedly connected to the right side of the fourth supporting rod 25, the pedals 28 are fixedly connected to the bottom of the swinging rod 26, the left side of each pedal 28 is fixedly connected with the right ends of the two third springs 27, and the second push plate 29 is fixedly connected to the top of the swinging rod 26.

The working principle is as follows: when people need to stimulate lactation, firstly, a user wipes breasts with a towel, then lies on the bed 1, the user can push the third support 7 to move left and right, the third support 7 moves left and right to drive the motor 8, the cam 9, the squeezing box 10, the guide rod 12, the first baffle 13, the first spring 14, the first roller 15, the squeezing plate 16, the first suction pipe 17, the second suction pipe 18, the one-way valve 19 and the rubber cover 20 to move left and right, after the third support moves to a proper position, the rubber cover 20 is pressed on the breasts, then the motor 8 is started, the motor 8 drives the cam 9 to rotate through the output shaft, the cam 9 drives the first roller 15 to move downwards, the first roller 15 moves downwards to drive the guide rod 12 to move downwards to drive the squeezing plate 16 to squeeze the squeezing box 10, when the cam 9 rotates to a position with a low inclination, the first baffle 13 moves upwards due to the elastic force of the first spring 14, first baffle 13 upwards moves and drives guide bar 12 rebound, guide bar 12 reciprocates and drives stripper plate 16 and extrudees squeeze box 10 in succession, because all be equipped with check valve 19 on first straw 17 and second straw 18, so second straw 18 is to the interior milk of breast in sucking squeeze box 10, then squeeze box 10 rethread first straw 17 is to milk in collecting box 3, thereby reach the function of hastening lactation to the lying-in woman, after using up, it can to close motor 8.

Because still including second slider 211, fourth support 212, first branch 213, first cylinder 214 and second branch 215, sliding connection has second slider 211 in the bottom of slide rail 5, bottom fixedly connected with fourth support 212 at second slider 211, fixedly connected with first branch 213 in the left side below of fourth support 212, fixedly connected with first cylinder 214 in the left side below of first branch 213, fixedly connected with second branch 215 on the telescopic link of first cylinder 214, second branch 215 and rubber boot 20 fixed connection. Therefore, when a user needs to attach the rubber cover 20 to the breast, the first cylinder 214 is first activated, the first cylinder 214 drives the second support rod 215 to move downward through the telescopic rod, and the second support rod 215 moves downward to drive the rubber cover 20 to move downward, so that the function of attaching the rubber cover 20 to the breast is achieved.

Because the sliding device further comprises a third supporting rod 221, a sliding sleeve 222, a sliding rod 223, a second baffle 224, a second spring 225 and a first push plate 226, the third supporting rod 221 is fixedly connected to the left side below the second support 4, the sliding sleeve 222 is fixedly connected to the bottom end of the third supporting rod 221, the sliding rod 223 is slidably connected in the sliding sleeve 222, the right end of the sliding rod 223 is fixedly connected to the left end of the first sliding block 6, the second baffle 224 is fixedly connected to the left end of the sliding rod 223, the second spring 225 is fixedly connected to the right end of the second baffle 224, the right end of the second spring 225 is fixedly connected to the left end of the sliding sleeve 222, and the first push plate 226 is fixedly connected to the left end of the sliding rod 223. When the rubber cover 20 needs to move, the first push plate 226 is pushed firstly, the first push plate 226 drives the slide rod 223 to move rightwards, the slide rod 223 moves rightwards to push the third bracket 7 and the fourth bracket 212 to move rightwards, the third bracket 7 and the fourth bracket 212 move rightwards to drive the rubber cover 20 to move rightwards, and the slide rod 223 returns to the original position due to the elastic force of the second spring 225, so that the function of adjusting the position by moving the rubber cover 20 leftwards and rightwards is achieved.

Because the rubber cover further comprises a second air cylinder 23 and a second roller 24, the bottom end of the third bracket 7 is fixedly connected with the second air cylinder 23, the telescopic rod of the second air cylinder 23 is fixedly connected with the second roller 24, and the second roller 24 is in contact with the rubber cover 20. When the puerpera is induced to lactation, the second cylinder 23 is started firstly, the second cylinder 23 drives the second roller 24 to move up and down through the telescopic rod, and the second roller 24 is in contact with the rubber cover 20, so that the breast massage function of the second roller 24 is achieved, and the lactation inducing efficiency is promoted.

Because the bed further comprises a fourth supporting rod 25, a swinging rod 26, third springs 27, pedals 28 and a second push plate 29, the fourth supporting rod 25 is fixedly connected to the upper portion of the left side of the bed 1, the swinging rod 26 is fixedly connected to the upper portion of the fourth supporting rod 25, the two third springs 27 are fixedly connected to the right side of the fourth supporting rod 25, the pedals 28 are fixedly connected to the bottom of the swinging rod 26, the left side of each pedal 28 is fixedly connected to the right ends of the two third springs 27, and the second push plate 29 is fixedly connected to the top of the swinging rod 26. Therefore, when the foot-operated pedal device is used, a parturient can step on the pedal 28 to move the pedal 28 leftwards, because the swinging rod 26 is rotatably connected with the fourth supporting rod 25, the pedal 28 moves leftwards to drive the bottom of the swinging rod 26 to move leftwards, the bottom of the swinging rod 26 moves leftwards to drive the top of the swinging rod 26 to move rightwards, and the top of the swinging rod 26 moves rightwards to push the first push plate 226, so that the foot-operated function of the parturient is achieved.

The above examples are merely representative of preferred embodiments of the present invention, and the description thereof is more specific and detailed, but not to be construed as limiting the scope of the present invention. It should be noted that, for those skilled in the art, various changes, modifications and substitutions can be made without departing from the spirit of the present invention, and these are all within the scope of the present invention. Therefore, the protection scope of the present patent shall be subject to the appended claims.

Claims

1. A multifunctional lactation promoting device for obstetrics and gynecology department is characterized by comprising a bed (1), a first support (2), a collecting box (3), a second support (4), a slide rail (5), a first sliding block (6), a third support (7), a motor (8), a cam (9), an extrusion box (10), a guide rod (12), a first baffle (13), a first spring (14), a first roller (15), an extrusion plate (16), a first suction pipe (17), a second suction pipe (18), a one-way valve (19) and a rubber cover (20), wherein the right end of the bed (1) is fixedly connected with the first support (2), the left side of the first support (2) is fixedly connected with the collecting box (3), the top end of the first support (2) is fixedly connected with the second support (4), the bottom end of the second support (4) is fixedly connected with the slide rail (5), the slide rail (5) is slidably connected with the first sliding block (6), a third support (7) is fixedly connected to the bottom end of the first sliding block (6), a motor (8) is fixedly connected to the upper portion of the right side of the third support (7), a cam (9) is connected to the output shaft of the motor (8) in an interference manner, an extrusion box (10) is fixedly connected to the right side of the third support (7), a guide hole (11) is formed in the top portion of the extrusion box (10), a guide rod (12) is connected to the guide hole (11) in a sliding manner, a first baffle (13) is fixedly connected to the guide rod (12), a first spring (14) is fixedly connected to the bottom end of the first baffle (13), the bottom end of the first spring (14) is fixedly connected to the extrusion box (10), an extrusion plate (16) is matched to the extrusion box (10), the extrusion plate (16) is fixedly connected to the bottom end of the guide rod (12), a first roller (15) is rotatably connected to the top portion of the guide rod (12), the first roller (15) is in contact with the cam (9), a first suction pipe (17) is fixedly connected to the right side of the extrusion plate (16), a second suction pipe (18) is fixedly connected to the bottom end of the extrusion box (10), a one-way valve (19) is arranged in the second suction pipe (18) and the first suction pipe (17), and a rubber cover (20) is fixedly connected to the bottom end of the second suction pipe (18); the rubber hood is characterized by further comprising a second sliding block (211), a fourth support (212), a first support rod (213), a first air cylinder (214) and a second support rod (215), wherein the second sliding block (211) is connected to the bottom end of the sliding rail (5) in a sliding manner, the fourth support (212) is fixedly connected to the bottom end of the second sliding block (211), the first support rod (213) is fixedly connected to the lower portion of the left side of the fourth support (212), the first air cylinder (214) is fixedly connected to the left side of the lower portion of the first support rod (213), the second support rod (215) is fixedly connected to the telescopic rod of the first air cylinder (214), and the second support rod (215) is fixedly connected with the rubber hood (20); the sliding type spring pushing device is characterized by further comprising a third supporting rod (221), a sliding sleeve (222), a sliding rod (223), a second baffle (224), a second spring (225) and a first pushing plate (226), wherein the third supporting rod (221) is fixedly connected to the left side below the second support (4), the sliding sleeve (222) is fixedly connected to the bottom end of the third supporting rod (221), the sliding rod (223) is slidably connected in the sliding sleeve (222), the right end of the sliding rod (223) is fixedly connected with the left end of the first sliding block (6), the second baffle (224) is fixedly connected to the left end of the sliding rod (223), the second spring (225) is fixedly connected to the right end of the second baffle (224), the right end of the second spring (225) is fixedly connected with the left end of the sliding sleeve (222), and the first pushing plate (226) is fixedly connected to the left end of the sliding rod; the rubber hood is characterized by further comprising a second cylinder (23) and a second roller (24), the bottom end of the third support (7) is fixedly connected with the second cylinder (23), a telescopic rod of the second cylinder (23) is fixedly connected with the second roller (24), and the second roller (24) is in contact with the rubber hood (20); still including fourth branch (25), swinging arms (26), third spring (27), footboard (28) and second push pedal (29), at left side top fixedly connected with fourth branch (25) of bed (1), upper portion fixedly connected with swinging arms (26) at fourth branch (25), two third springs (27) of right side fixedly connected with at fourth branch (25), bottom fixedly connected with footboard (28) at swinging arms (26), the left side of footboard (28) and the right-hand member fixed connection of two third springs (27), top fixedly connected with second push pedal (29) at swinging arms (26).