CN105943261B - A kind of travelling Wheelchair - Google Patents

A kind of travelling Wheelchair Download PDF

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Publication number
CN105943261B
CN105943261B CN201610521336.1A CN201610521336A CN105943261B CN 105943261 B CN105943261 B CN 105943261B CN 201610521336 A CN201610521336 A CN 201610521336A CN 105943261 B CN105943261 B CN 105943261B
Authority
CN
China
Prior art keywords
handle
vehicle frame
friction plate
road wheel
trammer
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Active
Application number
CN201610521336.1A
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Chinese (zh)
Other versions
CN105943261A (en
Inventor
秦晶
何珊
靳小红
徐硕
赵致萱
柴丹丹
孙颖丽
孙斐
徐春珂
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Henan Polytechnic Institute
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Henan Polytechnic Institute
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Publication date
Application filed by Henan Polytechnic Institute filed Critical Henan Polytechnic Institute
Priority to CN201610521336.1A priority Critical patent/CN105943261B/en
Publication of CN105943261A publication Critical patent/CN105943261A/en
Application granted granted Critical
Publication of CN105943261B publication Critical patent/CN105943261B/en
Active legal-status Critical Current
Anticipated expiration legal-status Critical

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Classifications

    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61G—TRANSPORT, PERSONAL CONVEYANCES, OR ACCOMMODATION SPECIALLY ADAPTED FOR PATIENTS OR DISABLED PERSONS; OPERATING TABLES OR CHAIRS; CHAIRS FOR DENTISTRY; FUNERAL DEVICES
    • A61G5/00—Chairs or personal conveyances specially adapted for patients or disabled persons, e.g. wheelchairs
    • A61G5/003—Wheelchairs attached to a cycle steerable by an attendant
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61G—TRANSPORT, PERSONAL CONVEYANCES, OR ACCOMMODATION SPECIALLY ADAPTED FOR PATIENTS OR DISABLED PERSONS; OPERATING TABLES OR CHAIRS; CHAIRS FOR DENTISTRY; FUNERAL DEVICES
    • A61G5/00—Chairs or personal conveyances specially adapted for patients or disabled persons, e.g. wheelchairs
    • A61G5/10—Parts, details or accessories
    • A61G5/1005—Wheelchairs having brakes
    • A61G5/101—Wheelchairs having brakes of the parking brake type, e.g. holding the wheelchair
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61G—TRANSPORT, PERSONAL CONVEYANCES, OR ACCOMMODATION SPECIALLY ADAPTED FOR PATIENTS OR DISABLED PERSONS; OPERATING TABLES OR CHAIRS; CHAIRS FOR DENTISTRY; FUNERAL DEVICES
    • A61G5/00—Chairs or personal conveyances specially adapted for patients or disabled persons, e.g. wheelchairs
    • A61G5/10—Parts, details or accessories
    • A61G5/1005—Wheelchairs having brakes
    • A61G5/1013—Wheelchairs having brakes engaging the wheel
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61G—TRANSPORT, PERSONAL CONVEYANCES, OR ACCOMMODATION SPECIALLY ADAPTED FOR PATIENTS OR DISABLED PERSONS; OPERATING TABLES OR CHAIRS; CHAIRS FOR DENTISTRY; FUNERAL DEVICES
    • A61G5/00—Chairs or personal conveyances specially adapted for patients or disabled persons, e.g. wheelchairs
    • A61G5/10—Parts, details or accessories
    • A61G5/1005—Wheelchairs having brakes
    • A61G5/1037—Wheelchairs having brakes manipulated by assisting person
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61G—TRANSPORT, PERSONAL CONVEYANCES, OR ACCOMMODATION SPECIALLY ADAPTED FOR PATIENTS OR DISABLED PERSONS; OPERATING TABLES OR CHAIRS; CHAIRS FOR DENTISTRY; FUNERAL DEVICES
    • A61G2200/00—Information related to the kind of patient or his position
    • A61G2200/10—Type of patient
    • A61G2200/20—Type of patient with asymmetric abilities, e.g. hemiplegic or missing a limb
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61G—TRANSPORT, PERSONAL CONVEYANCES, OR ACCOMMODATION SPECIALLY ADAPTED FOR PATIENTS OR DISABLED PERSONS; OPERATING TABLES OR CHAIRS; CHAIRS FOR DENTISTRY; FUNERAL DEVICES
    • A61G2203/00—General characteristics of devices
    • A61G2203/30—General characteristics of devices characterised by sensor means
    • A61G2203/36—General characteristics of devices characterised by sensor means for motion
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61G—TRANSPORT, PERSONAL CONVEYANCES, OR ACCOMMODATION SPECIALLY ADAPTED FOR PATIENTS OR DISABLED PERSONS; OPERATING TABLES OR CHAIRS; CHAIRS FOR DENTISTRY; FUNERAL DEVICES
    • A61G2203/00—General characteristics of devices
    • A61G2203/70—General characteristics of devices with special adaptations, e.g. for safety or comfort

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  • Health & Medical Sciences (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Animal Behavior & Ethology (AREA)
  • General Health & Medical Sciences (AREA)
  • Public Health (AREA)
  • Veterinary Medicine (AREA)
  • Nursing (AREA)
  • Handcart (AREA)

Abstract

The present invention relates to a kind of travelling Wheelchair, vehicle frame including being provided with road wheel, the brake gear for being braked to road wheel is provided with vehicle frame, brake gear include it is hand-held during for the walking of entourage's push wheel chair and can relative frame movement operation handle, handle back-moving spring is provided between operation handle and vehicle frame, brake gear also includes friction plate and makes the tripping spring of friction plate and road wheel frictional fit for applying elastic acting force to friction plate, is connected between operation handle and brake block by automatically controlled controlling organization.The present invention solve in the prior art because entourage forget operation brake gear and cause wheelchair by deadweight Lixing walk caused by safety problem.

Description

A kind of travelling Wheelchair
Technical field
The present invention relates to the travelling Wheelchair in tour field.
Background technology
As the improvement of people's living standards, tourism has become the essential part of people, and it is used as action not Just disabled person is said, safer tourism can be provided for it and is just particularly important.
Disabled person needs to travel by wheelchair, and existing wheelchair includes the vehicle frame for being provided with road wheel, and the upper end of vehicle frame is set Pushing hands is equipped with, in use, disabled person is sitting on wheelchair, entourage's hand push pushing hands walking.It can be absorbed to out of doors fresh Air.Existing wheelchair is typically provided with brake gear on road wheel, and when cooperation personnel, which go to, needs rest at one, accompany and attend to people Member touches on the brake device with regard to foot, prevents wheelchair from walking, so as to ensure the security of disabled person in wheelchair.But Shi Jishiyong mistake Found in journey, in tourism process, some bursting problems often occur, such as entourage needs to take a picture to somewhere beautiful scenery Or the problems such as answer the call, existing wheelchair, which needs pin to step on brake gear, could realize brake, because above mentioned problem occurs More suddenly, often occur that entourage forgets the device situation that touches on the brake, and now wheelchair is not locked out, along with trip Trip place is uneven, and wheelchair is it is possible that by gravity from the problem of walking, and now disabled person in wheelchair is just very Danger.
The content of the invention
It is an object of the invention to provide a kind of travelling Wheelchair, to solve in the prior art because entourage forgets Operation brake gear and cause wheelchair by deadweight Lixing walk caused by safety problem.
To achieve these goals, the technical solution adopted in the present invention is：
A kind of travelling Wheelchair, including be provided with the vehicle frame of road wheel, vehicle frame and be provided with for road wheel The brake gear braked, brake gear includes during for the walking of entourage's push wheel chair hand-held and can relative frame movement Operation handle, is provided with handle back-moving spring between operation handle and vehicle frame, brake gear also includes friction plate and for institute State friction plate to apply elastic acting force and make the tripping spring of the friction plate and road wheel frictional fit, operation handle and brake It is connected between piece by automatically controlled controlling organization, the automatically controlled control machine when operation handle overcomes handle action of reset spring power and moved Structure controls the friction plate to overcome the active force of the tripping spring and friction plate is released the braking to road wheel, in manipulator Friction plate is contacted frictional fit by tripping spring active force with road wheel when handle resets.
Operation handle is made up of the trammer handle positioned at vehicle frame upper end, and trammer handle extends in left-right direction, trammer handle Guiding movement is assemblied on the guide frame set on the vehicle frame along the longitudinal direction, and the driving friction plate is provided with vehicle frame Towards the braking unlocking motor moved away from the road wheel, automatically controlled controlling organization includes controller and for detecting the stroller hand It is additionally provided with to the braking unlocking motor, displacement transducer and controller and supplies on the displacement transducer of handle displacement signal, vehicle frame The power supply of electricity, controller be connected with the sampling of institute displacement sensors, controls to be connected with the unlocking motor of braking.
The guide frame includes the left leading arm and right guiding that left and right is arranged at intervals and length extends along the longitudinal direction The long guiding hole extended along the longitudinal direction is provided with arm, left and right leading arm, the left and right ends of trammer handle are to be oriented to corresponding The guide end that elongated hole guiding movement coordinates.
Guide end is the square axle structure coordinated with long guiding hole rotation stop.
Left and right leading arm is rhs-structure, and the front end of left and right leading arm is provided with the cross-brace arm of rhs-structure, Handle back-moving spring includes top located at the left back-moving spring and right reset bullet between cross-brace arm and the corresponding end of trammer handle Spring, left and right back-moving spring is located in left and right leading arm respectively.
The assist motor connected with corresponding traction drive, the assist motor and the controller are additionally provided with vehicle frame Control connection.
Operation handle is made up of the trammer handle positioned at vehicle frame upper end, and trammer handle extends in left-right direction, trammer handle Guiding movement is assemblied on the guide frame set on the vehicle frame along the longitudinal direction, and automatically controlled controlling organization includes current supply circuit, String is provided with power supply and braking unlocking motor on current supply circuit, and braking unlocking motor is connected with when being powered with the friction plate Drive the friction plate towards away from road wheel movement, trammer handle is used as one section of the current supply circuit, current supply circuit tool There is the contact being arranged in trammer handle shift motion, trammer handle has movement facing forward with contact to turn on current supply circuit The first working position and by handle action of reset spring power move backwards and with contact disconnect the second working position.
Beneficial effects of the present invention position：When entourage pushes wheelchair walking, entourage exerts a force to operation handle, this When operation handle relative frame produce displacement, automatically controlled controlling organization control friction plate releases the locking to road wheel, and road wheel can Normal walking, when because there is thing to have influence on entourage, such as takes pictures or makes a phone call, now entourage can be with wheel Chair is not contacted, operation handle no longer stress, by handle action of reset spring, and operation handle resets, and friction plate is made by tripping spring Frictional fit firmly and with road wheel is contacted, now road wheel is locked out at once, that is to say, that only entourage is to manipulator When handle exerts a force, friction plate can just be unlocked to road wheel, and when force terminates, friction plate is realized automatic to walking by tripping spring The locking of wheel, is not required to entourage and carries out other operations, therefore can effectively avoid caused by entourage forgets operation Wheelchair car slipping problem, can effectively ensure the security of disabled person in wheelchair.
Further, as a kind of form of automatically controlled controlling organization, operation handle is made up of trammer handle, in entourage When push wheelchair movement, because the factor of car resistance, trammer handle can the certain displacement of relative frame generation, displacement sensing Device detects the displacement, and controller just controls braking unlocking motor action, and braking unlocking motor driving friction plate is away from walking Take turns and unlock, as entourage and trammer handle disengaging, trailer handle is acted on by handle spring to be resetted, and controller releasing is to system The control of dynamic unlocking motor, tripping spring realizes the automatic locking to road wheel with movable friction plate.
Further, as another form of automatically controlled controlling organization, operation handle is made up of trammer handle, is being accompanied and attended to When personnel push wheelchair movement, because the factor of car resistance, trammer handle meeting relative frame produces certain displacement, now Trammer handle can realize the conducting of current supply circuit with the contact in current supply circuit, now brake unlocking motor action and Friction plate unblock is driven, when trammer handle resets, trammer handle disconnects with contact, braking unlocking motor must not electricity, friction plate Acted on and to road wheel automatic locking, without the use of controller and sensor, also simplified to a certain extent by tripping spring Structure.
Brief description of the drawings
Fig. 1 is the structural representation of embodiments of the invention 1；
Fig. 2 is Fig. 1 stereogram；
Fig. 3 is the cooperation schematic diagram of trammer handle and long guiding hole in Fig. 1；
Fig. 4 is the control principle drawing of embodiment 1；
Fig. 5 is the structural representation of the current supply circuit in embodiments of the invention 2.
Embodiment
The embodiment 1 of travelling Wheelchair is as shown in Fig. 1 ~ 4：The vehicle frame of four road wheels 4 is provided with including bottom 3, in four road wheels, two forward road wheels of position are deflecting roller, and the road wheel of position rearward is directional wheel, directional wheel Pivot center extends in left-right direction.Vehicle frame includes the left vehicle frame linked together by fold mechanism and 32 right sides in the present embodiment Seat cloth is also associated between vehicle frame 31, left and right vehicle frame, disabled person can be sitting on seat cloth, fold mechanism is cut including one Formula linking arm 6 and a folding linking arm 5, scissors linking arm 6 and folding linking arm 5 can realize left vehicle frame and right vehicle frame folding Together, to subtract the width on wheelchair frame left and right directions, this folding vehicle frame belongs to prior art, and its concrete structure is herein No longer it is described in detail.
The upper end of vehicle frame is provided with left guide frame 1 and right guide frame 2, and left and right guide frame one is high, one low sets Put, can so avoid the size after the influence folding in left and right vehicle frame folding excessively.The specific of left and right guide frame sets Put that form is identical, now only the concrete structure of left guide frame is described in detail, left guide frame includes the left He of leading arm 12 Right leading arm 14, the front end of left and right leading arm is connected with cross-brace arm 13, and left and right leading arm and cross-brace arm 13 are used Rhs-structure, two vertical support arms 7 being connected with left and right guide frame also use rhs-structure.Offered on left and right leading arm Long guiding hole 11 that guide direction extends along the longitudinal direction, wheelchair also includes in left-right direction extending for entourage is hand-held Entourage's hand-held handle 8 promotes the movement of vehicle frame to realize in operation handle 8, the present embodiment, therefore operation handle 8 is again Trammer handle is can be described as, the two ends of trammer handle are individually directed movement and are assemblied in corresponding long guiding hole 11, while pushing hands hand The two ends of handle 8 use square axle structure 81, by the cooperation of square axle structure and long guiding hole 11, on the one hand can avoid trammer handle Rotate, conveniently can also set in addition in handle back-moving spring 16, the present embodiment, handle back-moving spring 16 withstands on horizontal branch respectively Between the two ends of brace 13 and trammer handle 8, while handle back-moving spring is located in the endoporus of left and right leading arm respectively.
Wheelchair also includes friction plate 20 and friction plate is rubbed with road wheel for applying elastic acting force to friction plate 20 The tripping spring 21 coordinated is wiped, is connected between trammer handle 8 and friction plate 20 by automatically controlled controlling organization, automatically controlled controlling organization is Refer to and driving friction plate is provided with the controlling organization that could be realized by electric power, vehicle frame towards the braking unblock moved away from road wheel Motor 22, is connected between braking unlocking motor 22 and friction plate 20 by screw-nut mechanism 29, and screw-nut mechanism can be by The rotational action of braking unlocking motor 22 is converted into linearly operating, so as to realize that band movable friction plate 20 is moved towards away from road wheel direction Dynamic, automatically controlled controlling organization is included on controller 23 and the displacement transducer 24 for detecting trammer handle displacement signal, vehicle frame also Power supply is battery in the power supply for setting oriented braking unlocking motor, displacement transducer and controller to power, the present embodiment.On vehicle frame The assist motor connected with corresponding traction drive is additionally provided with, assist motor is connected with controller control.
When in use, when entourage does not exert a force to trammer handle, acted on by handle back-moving spring, trammer handle one The low order end of long guiding hole is directly in, now displacement transducer is not detected by the displacement signal of trammer handle, controller control system Dynamic unlocking motor is failure to actuate, by the active force of tripping spring, and friction plate and road wheel frictional fit, road wheel are in locking shape State；When needing to move wheelchair, the hand-held trammer handle of entourage promotes forward wheelchair, because wheelchair has running resistance, institute Displacement is produced with trammer handle meeting relative frame, displacement transducer detects the displacement signal, and the displacement signal is fed back to Controller, controller gives braking unlocking motor one order, and braking unlocking motor driving friction plate overcomes the effect of tripping spring Power is so that friction plate is towards away from road wheel motion, so as to release the locking to road wheel, entourage can push wheelchair shifting Dynamic, wheelchair is in moving process, due to the running resistance of wheelchair, and trammer handle is not at the low order end of long guiding hole, therefore Displacement transducer can detect displacement signal always, and friction plate is held in released state, when entourage is no longer to stroller hand Handle is exerted a force, such as entourage answers the call, takes a picture, rested, and trammer handle resets, and braking unlocking motor is not reoperated, this When friction plate reset to road wheel locking.When during stroller, if running into upward slope or road not usually, the movement of wheelchair Resistance can become big, and now trammer handle relative frame can produce bigger displacement, and now controller can control assist motor to move Make, assist motor provides power-assisted for entourage, so that more easily promoting wheelchair.In the present invention, displacement sensing Device belongs to prior art with controller and controller with braking unlocking motor, the annexation of assist motor, will not be described in detail herein. The present invention's it is critical that when entourage pushes away trammer handle forward, friction plate is just unlocked, when the thrust of trammer handle disappears When, mustn't manual control, friction plate can realize the locking to road wheel automatically.
In other embodiments of the invention, assist motor can not also be set；Certainly when trammer handle is not by active force, Trammer handle can also be not at the rearmost end that guide frame is oriented to stroke, and now trammer handle may be at guide frame guiding The middle part of stroke, so when pulling back trammer handle, displacement transducer can detect the displacement of trammer handle backward；System Dynamic unlocking motor and matched screw-nut mechanism can also be replaced by electric pushrod.
The embodiment 2 of travelling Wheelchair in the present embodiment as shown in figure 5, as different from Example 1, do not control Device processed, assist motor and displacement transducer, braking unlocking motor 22 and power supply 25 are in a current supply circuit, and trammer handle 8 is made For one section of current supply circuit, current supply circuit has the contact 30 being arranged in trammer handle shift motion, and trammer handle has court Preceding movement and contact with turn on current supply circuit the first working position and by handle action of reset spring power move backwards and with The second working position that contact disconnects.In actual use, when trammer handle does not stress, the electric shock of trammer handle and current supply circuit Disconnect, now brake unlocking motor akinesia without electricity, tripping spring band movable friction plate carries out locking to road wheel, when pushing away When cart handle relative frame is moved forward, trammer handle will be turned on the contact in current supply circuit, and braking unlocking motor obtains electric Act and drive friction plate towards away from the motion of road wheel direction, so as to realize unblock.Due to having lacked controller and displacement sensing Device, on the one hand can reduce product cost, and still further aspect can also reduce the failure of wheelchair due to reducing the use of electrical part Rate.The direction of arrow represents the moving direction i.e. fore-and-aft direction of trammer handle in Fig. 5.

Claims (3)

1. a kind of travelling Wheelchair, including it is provided with the vehicle frame of road wheel, vehicle frame and is provided with for entering to road wheel The brake gear of row braking, it is characterised in that:Brake gear is hand-held when including for the walking of entourage's push wheel chair and can be relative The operation handle of vehicle frame movement, is provided with handle back-moving spring between operation handle and vehicle frame, brake gear also includes friction plate And make the tripping spring of the friction plate and road wheel frictional fit for applying elastic acting force to the friction plate, operate It is connected between handle and brake block by automatically controlled controlling organization, when operation handle overcomes handle action of reset spring power and moved Automatically controlled controlling organization controls the friction plate to overcome the active force of the tripping spring and friction plate is released the system to road wheel Dynamic, when operation handle resets, friction plate is contacted frictional fit with road wheel by tripping spring active force, and operation handle is by position Trammer handle in vehicle frame upper end is constituted, and trammer handle extends in left-right direction, and guiding movement is filled trammer handle along the longitudinal direction Moved assigned in the driving friction plate on the guide frame set on the vehicle frame, is provided with vehicle frame towards away from the road wheel Braking unlocking motor, automatically controlled controlling organization includes controller and for detecting the stroller hand when trammer handle is moved forward It is additionally provided with to the braking unlocking motor, displacement transducer and controller and supplies on the displacement transducer of handle displacement signal, vehicle frame The power supply of electricity, controller be connected with the sampling of institute displacement sensors, controls to be connected with the braking unlocking motor, and the guiding is tied Structure includes setting on the left leading arm and right leading arm that left and right is arranged at intervals and length extends along the longitudinal direction, left and right leading arm The long guiding hole extended along the longitudinal direction is equipped with, the left and right ends of trammer handle are to coordinate with corresponding long guiding hole guiding movement Guide end, guide end is the square axle structure coordinated with long guiding hole rotation stop, and left and right leading arm is rhs-structure, left and right guiding The front end of arm is provided with the cross-brace arm of rhs-structure, and handle back-moving spring includes top and is located at cross-brace arm and trammer handle Corresponding end between left back-moving spring and right back-moving spring, left and right back-moving spring respectively be located at left and right leading arm in.
2. travelling Wheelchair according to claim 1, it is characterised in that：It is additionally provided with vehicle frame and corresponding walking The assist motor of drive connection is taken turns, the assist motor is connected with controller control.
3. travelling Wheelchair according to claim 1, it is characterised in that：Operation handle is by positioned at vehicle frame upper end Trammer handle is constituted, and trammer handle extends in left-right direction, and guiding movement is assemblied in the vehicle frame to trammer handle along the longitudinal direction On the guide frame of upper setting, automatically controlled controlling organization includes string on current supply circuit, current supply circuit and is provided with power supply and braking unblock electricity Machine, braking unlocking motor is connected to drive the friction plate to move towards away from the road wheel when being powered with the friction plate Dynamic, trammer handle is as one section of the current supply circuit, and current supply circuit has the contact being arranged in trammer handle shift motion, Trammer handle has movement facing forward and contact to turn on the first working position of current supply circuit and by handle action of reset spring The second working position that power is moved and disconnected with contact backwards.
CN201610521336.1A 2016-07-05 2016-07-05 A kind of travelling Wheelchair Active CN105943261B (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201610521336.1A CN105943261B (en) 2016-07-05 2016-07-05 A kind of travelling Wheelchair

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN201610521336.1A CN105943261B (en) 2016-07-05 2016-07-05 A kind of travelling Wheelchair

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Publication Number Publication Date
CN105943261A CN105943261A (en) 2016-09-21
CN105943261B true CN105943261B (en) 2017-10-13

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Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN107080627A (en) * 2017-06-19 2017-08-22 江西洪都航空工业集团有限责任公司 A kind of double-direction control wheelchair
CN109998304A (en) * 2019-04-30 2019-07-12 关爱有我(北京)科技有限公司 A kind of multiduty accompanying chair

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* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3024657A1 (en) * 1980-06-30 1982-01-21 Christina 6454 Bruchköbel Greinemann Four wheeled folding push chair for children - has scissor jointed telescopic frame with brake levers on each handle
CN1036177A (en) * 1988-03-28 1989-10-11 刘志华 Axial folding trolley for climbing stairway and climbing mountain
DE29519263U1 (en) * 1995-12-05 1996-01-25 Wanzl Metallwarenfabrik Gmbh, 89340 Leipheim Mobile device
CN201183505Y (en) * 2008-01-30 2009-01-21 中山市盛加塑料制品有限公司 Barrow with brake self-locking apparatus
CN201404383Y (en) * 2009-05-19 2010-02-17 常州中进医疗器材有限公司 wheelchair braking mechanism
CN201790974U (en) * 2010-09-14 2011-04-13 郝艺 Electric wheelchair with novel steering mechanism
CN103738385B (en) * 2014-01-15 2016-02-24 冯俊奇 A kind of perambulator slips car automatic locking system
CN104002849A (en) * 2014-06-18 2014-08-27 重庆红旗杰勋车轮有限公司 Self-locking mechanism for man-powered cart in uphill process
CN104401381B (en) * 2014-11-14 2017-04-05 好孩子儿童用品有限公司 A kind of electric brake mechanism and perambulator

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Inventor after: Qin Jing

Inventor after: He Shan

Inventor after: Jin Xiaohong

Inventor after: Xu Shuo

Inventor after: Zhao Zhixuan

Inventor after: Chai Dandan

Inventor after: Sun Yingli

Inventor after: Sun Fei

Inventor after: Xu Chunke

Inventor before: Qin Jing

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