CN107874936A

CN107874936A - Multi-functional stair climbing wheelchair

Info

Publication number: CN107874936A
Application number: CN201810034877.0A
Authority: CN
Inventors: 勇芹
Original assignee: Individual
Current assignee: Individual
Priority date: 2018-01-15
Filing date: 2018-01-15
Publication date: 2018-04-06

Abstract

The present invention relates to a kind of multi-functional stair climbing wheelchair, including the wheelchair frame and backing cushion being installed on wheelchair frame, chair cushion and handrail, rear end is horizontally rotated by bearing below wheelchair frame is provided with drive shaft, drive shaft both ends are respectively fixed with swinging mounting, some planetary gears are rotatablely equipped with swinging mounting, each planetary gear is distributed uniformly and circumferentially by the center of circle of drive shaft, and universal wheel is respectively fixed with left and right sides of wheelchair frame lower front end.When promoting wheelchair stair-climbing, the elderly or disabled person can keep being sitting on chair cushion, family members buttress wheelchair frame at rear afterwards, now drive mechanism drives drive shaft turns, drive shaft turns cause swinging mounting to rotate, so that along the circumferential direction uniform planetary gear relative drive shaft revolution, planetary gear by high alternate rotation on earth and its own can relatively rotate support rotation, therefore it is achieved thereby that the purpose of planetary gear stairs, stair activity is taken so as to facilitate wheelchair, saves the muscle power of family members.

Description

Multi-functional stair climbing wheelchair

Technical field

The present invention relates to a kind of wheelchair, and in particular to a kind of stair climbing wheelchair.

Background technology

It is well known that China's aging speedup improves year by year, it imply that us at one's side when society enters the aging stage Have increasing the elderly.The elderly of many legs and feet inconvenience or the disabled person of lower limb disability are still lived in without electricity In the building of ladder, therefore these crowds take wheelchair trip just into a great problem.Existing wheelchair is not set downstairs for upper Meter, therefore family members are difficult to promote after taking, and there is no safety measure, easily occur dangerous.

The content of the invention

The present invention is in order to overcome the shortcomings of above technology, there is provided a kind of multi-functional stair climbing wheelchair.

Technical scheme is used by the present invention overcomes its technical problem：

This multi-functional stair climbing wheelchair, including wheelchair frame and the backing cushion, chair cushion and the handrail that are installed on wheelchair frame, the wheel Rear end is horizontally rotated by bearing below chair frame is provided with drive shaft, and the drive shaft both ends are respectively fixed with swinging mounting, institute State and some planetary gears are rotatablely equipped with swinging mounting, each planetary gear along the circumferential direction uniformly divides using drive shaft as the center of circle Cloth, the wheelchair frame lower front end left and right sides are respectively fixed with universal wheel, and a drive mechanism, which is installed in wheelchair frame, to be used to drive Dynamic drive shaft turns.

The chain that above-mentioned drive mechanism includes the motor that is installed in wheelchair frame and battery I, is installed on machine shaft Wheel I, the chain wheel II being installed in drive shaft, the motor 17 are electrically connected to battery I, the chain wheel I and chain wheel II through switch Connected between 20 by chain.

In order to prevent stair center of gravity reach when climbing building from causing the phenomenon of slide-out, in addition to rotated and pacified by rotating shaft I Two swing rods loaded on the lower section left and right ends of wheelchair frame 1, described two universal wheels are individually fixed in the lower section of two swing rods, oil cylinder It is hingeably secured in wheelchair frame, the piston rod top of the oil cylinder is hingeably secured on swing rod.

It is respectively fixed with order to facilitate occupant's placement both feet, the top of above-mentioned two swing rod and positioned at the front of wheelchair frame 1 Pedal.

In order to realize hand-operated brake, in addition to be arranged on wheelchair frame handle plug I, by quick assembling mechanism insert fix In the fixation handle in handle plug I, the brake lever I being installed on fixed handle and the brake rim being installed on universal wheel, institute State brake lever I and brake rim I is connected to by brake cable.

In order to realize that electronic promotion wheelchair is gone out, in addition to vehicle frame, it is rotatablely installed the wheel in vehicle frame rear end, is installed on car Electric vehicle motor on wheel, the brake rim II being installed in wheel, the cushion being installed on vehicle frame and it is installed in vehicle frame Battery II, the vehicle frame are fixed in drive shaft by plug-in connection inserting, and the connected structure makes vehicle frame relative drive shaft Handle is installed relative to the other end of handle plug I with the horizontally and vertically free degree, above the wheelchair frame to insert First II, speed governing handle is fixed in handle plug II by quick assembling mechanism inserting, and the speed-regulating handle bar is provided with brake lever II, institute on hand State brake lever II and brake rim II is connected to by brake cable, the electric vehicle motor is connected to battery II through speed-regulating handle bar torch.

In order to realize the fast assembling-disassembling of fixed handle and speed governing handle, above-mentioned quick assembling mechanism includes being respectively arranged at fixation The plug I and plug II of handle and speed governing handle front end, be respectively arranged in handle plug I and handle plug II and with Jack I and jack II that plug I and the size of plug II match, the steel ball I for being installed on plug I and the front end of plug II is inlayed respectively With steel ball II, steel ball I and steel ball II lower end is respectively arranged with spring, and the fixed handle and speed governing handle pass through plug I When inserting with plug II in handle plug I and handle plug II, the steel ball I and steel ball II are located at hand plug I and handle respectively The outside of plug II and the local opposing plug I and the outwardly convex of plug II of steel ball I and steel ball II.

In order to facilitate fast quick-detach, installation between vehicle frame and wheelchair frame, above-mentioned connected structure is fixed on inserting in drive shaft Seat, the plug being plugged on socket, the fixed seat being fixed on plug, the rotating shaft IV being horizontally installed in fixed seat are rotated vertically And the earrings being installed in rotating shaft IV is rotated upwardly and downwardly, the earrings is connected with vehicle frame.

In order to further improve the security in vehicle traveling, in addition to it is rotatablely installed in the brake on vehicle frame by rotating shaft II Car pedal, the fixed plate being fixed on below vehicle frame, the oscillating deck below vehicle frame is rotatablely installed by rotating shaft III and is fixed on Rubber slab on oscillating deck, steel wire rope one end are fixed on its other end on brake pedal and are fixed on oscillating deck lower end, spring suit In on steel wire rope and it is placed between fixed plate and oscillating deck, when brake pedal moves downward, steel wire rope, which pulls, to be swung The rubber slab that plate upper end is fixed contacts with wheel.

The beneficial effects of the invention are as follows：When promoting this multi-functional stair climbing wheelchair being walked on level road, will can drive Axle, which rotates corresponding angle, makes two planetary gears of drive shaft both sides or a planetary gear be contacted with ground.Climbed when promoting wheelchair Lou Shi, the elderly or disabled person can keep being sitting on chair cushion, and family members buttress wheelchair frame at rear afterwards, now drive mechanism band Dynamic drive shaft turns, drive shaft turns cause swinging mounting to rotate, and are driven so that along the circumferential direction uniform planetary gear is relative Axle revolves round the sun, planetary gear by high alternate rotation on earth and its own can relatively rotate support rotation, therefore it is achieved thereby that row The purpose of star-wheel stairs, stair activity is taken so as to facilitate wheelchair, saves the muscle power of family members.

Brief description of the drawings

Fig. 1 is the structural representation of the present invention

Fig. 2 is driving mechanism structure schematic diagram of the present invention；

Fig. 3 is foot-operated brake mechanism structural representation of the present invention；

Fig. 4 is plug-in connection main structure diagram of the present invention；

Fig. 5 is plug-in connection overlooking the structure diagram of the present invention；

Fig. 6 is handle position attachment structure schematic diagram；

Fig. 7 is A in Fig. 6 to structural representation；

Fig. 8 is stair climbing status architecture schematic diagram of the present invention；

In figure, the handle plug I 5. of 1. wheelchair frame, 2. drive shaft, 3. swinging mounting 4. fixes the speed-regulating handle bar of 6. brake lever of handle I 7. The backing cushion 15. of II 13. steel ball of hand 8. brake lever, II 9. handle plug, II 10. plug, I 11. steel ball, I 12. plug II 14. The battery I of 22. planetary gear of chair cushion 16. handrail, 17. motor, 18. chain, 19. chain wheel I, 20. chain wheel II, 21. bearing 23. 24. the rotating shaft II of 30. brake pedal of rotating shaft I 25. swing rod, 26. universal wheel, 27. oil cylinder, 28. pedal, 29. fixed seat 31. 32. the wheel 40. of 38. rubber slab of steel wire rope 33. fixed plate, 34. spring, 35. rotating shaft, III 36. vehicle frame, 37. oscillating deck 39. The earrings of 45. rotating shaft of electric vehicle motor 41. cushion, 42. battery, II 43. plug, 44. socket IV 46..

Embodiment

1 to accompanying drawing 8, the present invention will be further described below in conjunction with the accompanying drawings.

As shown in Figure 1, this multi-functional stair climbing wheelchair, including wheelchair frame 1 and the backing cushion that is installed on wheelchair frame 1 14th, chair cushion 15 and handrail 16, the lower section rear end of wheelchair frame 1 is horizontally rotated by bearing 21 is provided with drive shaft 2, the both ends of drive shaft 2 Swinging mounting 3 is respectively fixed with, some planetary gears 22 are rotatablely equipped with swinging mounting 3, each planetary gear 22 is with drive shaft 2 The center of circle is distributed uniformly and circumferentially, and universal wheel 26, drive mechanism peace are respectively fixed with left and right sides of the lower front end of wheelchair frame 1 It is interior for driving drive shaft 2 to rotate loaded on wheelchair frame 1., can be with when promoting this multi-functional stair climbing wheelchair being walked on level road Drive shaft 2 is rotated into corresponding angle makes two planetary gears 22 of the both sides of drive shaft 2 or a planetary gear 22 be contacted with ground, Both sides have two planetary gears 22 to contact the stability that can improve vehicle traveling with ground respectively, but a disadvantage is that contact area is big Frictional force is caused greatly so as to become heavy when promoting wheelchair to turn.And a planetary gear 22 contacts with ground turning can be made light It hurry up, and reduce radius of turn.When promoting wheelchair stair-climbing, the elderly or disabled person can keep being sitting on chair cushion 15, Zhi Houjia Category buttresses wheelchair frame 1 at rear, and now drive mechanism drives drive shaft 2 to rotate, and drive shaft 2, which rotates, causes swinging mounting 3 to rotate, So that the along the circumferential direction uniform relative drive shaft 2 of planetary gear 22 revolves round the sun, planetary gear 22 by high alternate rotation on earth and its It itself can relatively rotate the rotation of support 3, therefore it is achieved thereby that the purpose of the stairs of planetary gear 22, so as to facilitate wheelchair Stair activity is taken, saves the muscle power of family members.

As shown in Figure 2, drive mechanism it can include the motor 17 being installed in wheelchair frame 1 and store for following structure Battery I 23, the chain wheel I 19 being installed in the rotating shaft of motor 17, the chain wheel II 20 being installed in drive shaft 2, motor 17 is through switch Battery I 23 is electrically connected to, is connected between chain wheel I 19 and chain wheel II 20 by chain 18.After opening switch, battery I 23 provide electric energy, and motor 17 rotates, so as to be rotated by chain wheel I 19 using the drive sprocket II 20 of chain 18,20 turns of chain wheel II Move so as to drive drive shaft 2 to rotate, drive shaft 2, which rotates, drives the swinging mounting 3 at both ends to rotate, it is achieved thereby that swinging mounting 3 On each planetary gear 22 revolved round the sun around drive shaft 2, it is achieved thereby that climb building or downstairs purpose.

As shown in Figure 8 due to difference in height between stair each two step be present, therefore in wheelchair stair-climbing, behind The level height of planetary gear 22 is higher than the height of two universal wheels in front end, therefore now wheelchair is inclined, so as to easily send out The raw danger tumbled.Therefore as shown in Figure 1, can also include being rotatablely installed in the lower section of wheelchair frame 1 left and right by rotating shaft I 24 Two swing rods 25 at both ends, two universal wheels 26 are individually fixed in the lower section of two swing rods 25, and oil cylinder 27 is hingeably secured to wheelchair In frame 1, the piston rod top of oil cylinder 27 is hingeably secured on swing rod 25.Usually when wheelchair is being walked on level road, oil cylinder 27 Piston rod is fully retracted, and now two bottoms of universal wheel 26 of the lower end of swing rod 25 are located at same level with the bottom of planetary gear 22 On.When wheelchair needs to climb building, now the piston rod of oil cylinder 27 is protruding, and it promotes swing rod 25 to rotate down, and now works as planet Wheel 22 is when climbing up a step, and the step still low with position of the universal wheel 26 in front of wheelchair contacts, and keeps wheelchair frame 1 as level State, therefore the effect of overturn-preventing is served, improve the security of this multi-functional stair climbing wheelchair.

As shown in Figure 1, the top of two swing rods 25 and pedal 28 is respectively fixed with positioned at the front of wheelchair frame 1, works as wheel For chair when being travelled on level road, oil cylinder 27 drives swing rod 25 to move up, and now both feet can be placed on pedal 28 by people, Improve the comfort level used.

As shown in Figure 6, in addition to be arranged on wheelchair frame 1 handle plug I 4, by quick assembling mechanism inserting be fixed on Fixation handle 5, the brake lever I 6 being installed on fixed handle 5 and the brake being installed on universal wheel 26 in handle plug I 4 Drum, brake lever I 6 are connected to brake rim I by brake cable.It can utilize fixed handle 5 is convenient to promote wheel by inserting fixed handle 6 Chair is walked, and can complete the brake to universal wheel 26 by brake lever I 6, thus can be with first when there is emergency when Between wheelchair is stopped, improve the security used.

Because traditional wheelchair needs to be carried out by family members, therefore it is an insoluble problem to go away, therefore such as accompanying drawing 1 It is shown present invention additionally comprises vehicle frame 36, be rotatablely installed the wheel 39 in the rear end of vehicle frame 36, the electric car being installed on wheel 39 electricity Machine 40, the brake rim II being installed in wheel 39, the cushion 41 being installed on vehicle frame 36 and the electric power storage being installed in vehicle frame 36 Pond II 42, vehicle frame 36 are fixed in drive shaft 2 by plug-in connection inserting, and connected structure has the relative drive shaft 2 of vehicle frame 36 The horizontally and vertically free degree, the top of wheelchair frame 1 are provided with handle plug II relative to the other end of handle plug I 4 9, speed governing handle 7 is fixed in handle plug II 9 by quick assembling mechanism inserting, and brake lever II 8, brake lever are provided with speed governing handle 7 II 8 are connected to brake rim II by brake cable, and electric vehicle motor 40 is electrically connected to battery II 42 through speed governing handle 7.Work as family members Need with wheelchair occupant travel outdoors shopping when, vehicle frame 36 can be inserted into drive shaft 2 by connected structure, And be fixed on speed governing handle 7 in handle plug II 9 by quick assembling mechanism inserting, family members are sat on cushion 41 afterwards, and turn is adjusted Fast handle 7, which can make battery II 42 provide electric power for electric vehicle motor 40, rotates its band motor car wheel 39, is promoted so as to realize The forward purpose of wheelchair.Can turn to wheelchair frame 1 by speed governing handle 7 and fixed handle 5, and by brake lever I 6 with And brake lever II 8 can brake universal wheel 26 and wheel 39, improve security.When amusement and recreation such as arrival market, parks During place, vehicle frame 36 is removed from drive shaft 2 by connected structure, and speed governing handle 7 and fixed handle 5 are pulled up, will After vehicle frame 36 is locked, family members can promote this multi-functional stair climbing wheelchair to lead the elderly or disabled person's carry out activity, very It is convenient.

As shown in accompanying drawing 6 and accompanying drawing 7, quick assembling mechanism can be following structure it include being respectively arranged at fixed handle 5 with And the front end of speed governing handle 7 plug I 10 and plug II 12, be respectively arranged in handle plug I 4 and handle plug II 9 And match with plug I 10 and the size of plug II 12 jack I and jack II, inlay respectively be installed on plug I 10 and insert The steel ball I 11 and steel ball II 13 of first II 12 front end, steel ball I 11 and the lower end of steel ball II 13 are respectively arranged with spring.Work as needs When the fixed handle 5 of insertion or speed governing handle 7, fixed handle 5 and speed governing handle 7 are inserted by plug I 10 and plug II 12 When entering in handle plug I 4 and handle plug II 9, now steel ball I 11 and steel ball II 13 are located at hand plug I 4 and handle respectively The outside of hand plug II 9 and the local opposing plug I 10 and the outwardly convex of plug II 12 of steel ball I 11 and steel ball II 13.When need When extracting fixed handle 5 or speed governing handle 7, firmly outwards pull out, now steel ball I 11 and steel ball II 13 can be by handle plugs I 4 and the extruding of the outer edge of handle plug II 9, so as to when steel ball I 11 and steel ball II 13 move downward and compression spring, directly To when steel ball I 11 and steel ball II 13 submerge completely inside plug I 10 and plug II 12, now can conveniently will fixed handle 5 and speed governing handle 7 dismantle, remove and install simple and fast.

As shown in figures 4 and 5, connected structure is fixed in drive shaft 2 socket 44, vertical rotate are plugged in socket Plug 43 on 44, the fixed seat 29 being fixed on plug 43, the rotating shaft IV 45 being horizontally installed in fixed seat 29 and up and down It is rotatablely installed and is connected in the earrings 46 in rotating shaft IV 45, earrings 46 with vehicle frame 36.This hair is driven when needing to use driving car When bright multi-functional stair climbing wheelchair is outgoing, by the way that plug 43 is inserted in socket 44, because the counterpart receptacle 44 of plug 43 can be with Left-right rotation and, rotating the earrings 46 that is fixed in fixed seat 29 by rotating shaft IV 45 can rotate upwardly and downwardly, it is achieved thereby that car Frame 36 can be rotated freely with vertical direction in the horizontal direction relative to wheelchair frame 1, therefore not cause the installation of driving car closely To dismantle simple and convenient, and driving car driving wheelchair frame 1 can be realized when moving ahead, wheelchair frame 1 can be turned with relative frame 36, When running into hollow section, the relative frame 36 of wheelchair frame 1 can not be in a level height, and avoiding being rigidly connected, it is ineffective to cause to rotate Live, and the section that difference of height be present causes wheelchair to be sticked up generation.

As shown in accompanying drawing 1 and accompanying drawing 3, it can also include being rotatablely installed by rotating shaft II 31 stepping in the brake on vehicle frame 36 Plate 30, the fixed plate 33 for being fixed on the lower section of vehicle frame 36, be rotatablely installed by rotating shaft III 35 oscillating deck 37 in the lower section of vehicle frame 36 with And the rubber slab 38 being fixed on oscillating deck 37, the one end of steel wire rope 32 are fixed on its other end on brake pedal 30 and are fixed on swing The lower end of plate 37, spring 34 is set on steel wire rope 32 and it is placed between fixed plate 33 and oscillating deck 37, when needing to brake When, driver can step on brake pedal 30 downwards, and steel wire rope 32 can be driven to pull pendulum when brake pedal 30 moves downward Dynamic plate 37 rotates around rotating shaft III 35, and the rubber slab 38 for finally making to install on oscillating deck 37 contacts with wheel 39, realizes foot-operated stop Car is fixed, and now spring 34 is compressed, and when pin is moved away from brake pedal 30, the elastic force of spring 34 drives oscillating deck 37 to returning Swing, and pull brake pedal 30 to reset by steel wire rope 32.Brake weight can be controlled according to the touch on the brake dynamics of pedal 30 of pin The size of degree, wheel 39 is completed by brake cable driving brake drum II relative to brake lever II 8 and braked, the footbrake of this structure is made For two-stage brake, the reliability and security of brake are improved, prevents the failure of brake rim II from causing the phenomenon of brake failure Occur.

Claims

1. a kind of multi-functional stair climbing wheelchair, including wheelchair frame（1）And it is installed on wheelchair frame（1）On backing cushion（14）, chair Pad（15）And handrail（16）, it is characterised in that：The wheelchair frame（1）Lower section rear end passes through bearing（21）Horizontally rotate and drive is installed Moving axis（2）, the drive shaft（2）Both ends are respectively fixed with swinging mounting（3）, the swinging mounting（3）It is rotatablely equipped with if Dry planetary gear（22）, each planetary gear（22）With drive shaft（2）It is distributed uniformly and circumferentially for the center of circle, the wheelchair frame （1）Universal wheel is respectively fixed with left and right sides of lower front end（26）, a drive mechanism is installed on wheelchair frame（1）It is interior to be used to drive Moving axis（2）Rotate.

2. multi-functional stair climbing wheelchair according to claim 1, it is characterised in that：The drive mechanism includes being installed on wheel Chair frame（1）Interior motor（17）And battery I（23）, be installed on motor（17）Chain wheel I in rotating shaft（19）, be installed on driving Axle（2）On chain wheel II（20）, the motor（17）Battery I is electrically connected to through switch（23）, the chain wheel I（19）With sprocket wheel Ⅱ（20）Between pass through chain（18）Connection.

3. multi-functional stair climbing wheelchair according to claim 1, it is characterised in that：Also include passing through rotating shaft I（24）Rotate It is installed on wheelchair frame（1）Two swing rods of lower section left and right ends（25）, described two universal wheels（26）It is individually fixed in two pendulum Bar（25）Lower section, oil cylinder（27）It is hingeably secured to wheelchair frame（1）In, the oil cylinder（27）Piston rod top be hingeably secured to Swing rod（25）On.

4. multi-functional stair climbing wheelchair according to claim 3, it is characterised in that：Described two swing rods（25）Top and Positioned at wheelchair frame（1）Front is respectively fixed with pedal（28）.

5. multi-functional stair climbing wheelchair according to claim 1, it is characterised in that：Also include being arranged at wheelchair frame（1）On Handle plug I（4）, by quick assembling mechanism inserting be fixed on handle plug I（4）Interior fixation handle（5）, be installed on fixed Hand（5）On brake lever I（6）And it is installed on universal wheel（26）On brake rim, the brake lever I（6）Brake is connected to by brake cable Car drum I.

6. multi-functional stair climbing wheelchair according to claim 1, it is characterised in that：Also include vehicle frame（36）, rotational installation In vehicle frame（36）The wheel of rear end（39）, be installed on wheel（39）On electric vehicle motor（40）, be installed on wheel（39）In Brake rim II, it is installed on vehicle frame（36）On cushion（41）And it is installed on vehicle frame（36）Interior battery II（42）, the car Frame（36）Drive shaft is fixed on by plug-in connection inserting（2）On, the connected structure makes vehicle frame（36）Relative drive shaft（2）Tool There are the horizontally and vertically free degree, the wheelchair frame（1）Top is relative to handle plug I（4）The other end is provided with handle Hand plug II（9）, speed governing handle（7）Handle plug II is fixed on by quick assembling mechanism inserting（9）In, the speed governing handle（7） On be provided with brake lever II（8）, the brake lever II（8）Brake rim II, the electric vehicle motor are connected to by brake cable（40）Through adjusting Fast handle（7）It is electrically connected to battery II（42）.

7. the multi-functional stair climbing wheelchair according to claim 5 or 6, it is characterised in that：The quick assembling mechanism includes difference It is arranged at fixed handle（5）And speed governing handle（7）The plug I of front end（10）With plug II（12）, be respectively arranged at handle and insert First I（4）And handle plug II（9）It is interior and with plug I（10）With plug II（12）The jack I and jack that size matches IIth, inlay respectively and be installed on plug I（10）With plug II（12）The steel ball I of front end（11）With steel ball II（13）, the steel ball I （11）With steel ball II（13）Lower end is respectively arranged with spring, the fixed handle（5）With speed governing handle（7）Pass through plug I（10） With plug II（12）Insert handle plug I（4）With handle plug II（9）When middle, the steel ball I（11）With steel ball II（13）Respectively Positioned at hand plug I（4）With handle plug II（9）Outside and steel ball I（11）With steel ball II（13）Local opposing plug I（10）With Plug II（12）Outwardly convex.

8. multi-functional stair climbing wheelchair according to claim 6, it is characterised in that：The connected structure is fixed on drive shaft （2）On socket（44）, vertical rotate be plugged in socket（44）On plug（43）, be fixed on plug（43）On fixed seat （29）, be horizontally installed to fixed seat（29）Interior rotating shaft IV（45）And rotate upwardly and downwardly and be installed on rotating shaft IV（45）On earrings （46）, the earrings（46）With vehicle frame（36）It is connected.

9. multi-functional stair climbing wheelchair according to claim 6, it is characterised in that：Also include passing through rotating shaft II（31）Rotate It is installed on vehicle frame（36）On brake pedal（30）, be fixed on vehicle frame（36）The fixed plate of lower section（33）, pass through rotating shaft III（35） It is rotatablely installed in vehicle frame（36）The oscillating deck of lower section（37）And it is fixed on oscillating deck（37）On rubber slab（38）, steel wire rope （32）Brake pedal is fixed in one end（30）Its upper other end is fixed on oscillating deck（37）Lower end, spring（34）It is set in steel wire rope （32）Above and it is placed in fixed plate（33）And oscillating deck（37）Between, work as brake pedal（30）When moving downward, steel wire rope （32）Pull oscillating deck（37）The rubber slab that upper end is fixed（38）With wheel（39）Contact.