CN106080732B - A stroller for travel - Google Patents
A stroller for travel Download PDFInfo
- Publication number
- CN106080732B CN106080732B CN201610521106.5A CN201610521106A CN106080732B CN 106080732 B CN106080732 B CN 106080732B CN 201610521106 A CN201610521106 A CN 201610521106A CN 106080732 B CN106080732 B CN 106080732B
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- Prior art keywords
- handle
- friction plate
- baby carriage
- carriage frame
- traveling wheel
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- 230000007246 mechanism Effects 0.000 claims abstract description 20
- 238000006073 displacement reaction Methods 0.000 claims description 30
- 230000009471 action Effects 0.000 claims description 7
- 238000005070 sampling Methods 0.000 claims description 2
- 238000010276 construction Methods 0.000 claims 1
- 230000005484 gravity Effects 0.000 abstract description 2
- 230000005611 electricity Effects 0.000 description 5
- 238000000034 method Methods 0.000 description 3
- 238000010586 diagram Methods 0.000 description 2
- 239000004744 fabric Substances 0.000 description 2
- 230000008569 process Effects 0.000 description 2
- 206010001541 Akinesia Diseases 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000009172 bursting Effects 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 230000006872 improvement Effects 0.000 description 1
- 230000004044 response Effects 0.000 description 1
- 239000007787 solid Substances 0.000 description 1
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B62—LAND VEHICLES FOR TRAVELLING OTHERWISE THAN ON RAILS
- B62B—HAND-PROPELLED VEHICLES, e.g. HAND CARTS OR PERAMBULATORS; SLEDGES
- B62B9/00—Accessories or details specially adapted for children's carriages or perambulators
- B62B9/08—Braking mechanisms; Locking devices against movement
- B62B9/085—Braking mechanisms; Locking devices against movement hand operated
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B62—LAND VEHICLES FOR TRAVELLING OTHERWISE THAN ON RAILS
- B62B—HAND-PROPELLED VEHICLES, e.g. HAND CARTS OR PERAMBULATORS; SLEDGES
- B62B9/00—Accessories or details specially adapted for children's carriages or perambulators
- B62B9/08—Braking mechanisms; Locking devices against movement
- B62B9/087—Braking mechanisms; Locking devices against movement by locking in a braking position
Landscapes
- Engineering & Computer Science (AREA)
- Health & Medical Sciences (AREA)
- Public Health (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Transportation (AREA)
- Mechanical Engineering (AREA)
- Handcart (AREA)
- Carriages For Children, Sleds, And Other Hand-Operated Vehicles (AREA)
Abstract
本发明提供一种旅游用童车，包括设置有行走轮的童车架，童车架上设置有用于对行走轮进行制动的刹车装置，刹车装置包括供操作人员推童车行走时手持的并可相对童车架移动的操作手柄，操作手柄与童车架之间设置有手柄复位弹簧，刹车装置还包括摩擦片及用于向所述摩擦片施加弹性作用力而使所述摩擦片与行走轮摩擦配合的制动弹簧，操作手柄与刹车片之间通过控制机构相连。本发明解决了现有技术中因家长忘记操作刹车装置而导致童车依靠自重力行走而引起的儿童安全问题。
The invention provides a stroller for traveling, which comprises a stroller frame provided with walking wheels, and a braking device for braking the traveling wheels is arranged on the stroller frame, and the braking device includes a hand-held handle for the operator to push the stroller while walking and can be opposite to the stroller. An operating handle for moving the frame, a handle return spring is arranged between the operating handle and the stroller frame, and the brake device also includes a friction plate and a mechanism for applying elastic force to the friction plate so that the friction plate and the walking wheel are frictionally matched. The moving spring is used, and the operating handle is connected with the brake pad through a control mechanism. The invention solves the child safety problem in the prior art caused by the parent forgetting to operate the brake device and causing the baby carriage to walk by its own gravity.
Description
Technical field
The present invention relates to the travelling perambulators in tour field.
Background technique
As the improvement of people's living standards, private car is more more and more universal, the universal of private car has pushed self-driving travel
Development.And facilitating consideration for the family for having child, when for self-driving travel, perambulator has been that self-driving tourism must not
The product that can lack.,
Existing perambulator includes the vehicle frame for being provided with traveling wheel, and the upper end of vehicle frame is provided with pushing hands, in use, parent will be small
Child is placed in perambulator, and hand push pushing hands pushes perambulator walking, can family happiness enjoyment brought by enjoyment family heartily.Existing child
Vehicle is generally provided with brake gear on traveling wheel, as soon as parent's foot touches on the brake device when the parent place of going to needs rest, makes
Perambulator cannot walk, to guarantee the safety of child in perambulator.But find in actual use, in tourism process,
It often will appear some bursting problems, such as parent needs the problems such as somewhere beautiful scenery is taken a picture or answered the call, existing child
Vehicle needs foot to step on brake gear to be just able to achieve brake, due to the above problem occur more suddenly, often will appear parent
Forget the device situation that touches on the brake, and perambulator is not locked up at this time, along with being uneven for tourist destination, perambulator may go out
Now by gravity from the problem of walking, the child in perambulator is just very dangerous at this time.
Summary of the invention
The object of the present invention is to provide a kind of travelling perambulators, to solve in the prior art because parent forgets operation brake dress
Set and cause perambulator by self weight Lixing walk caused by children's safety problem.
To achieve the goals above, the technical scheme adopted by the invention is that:
A kind of travelling perambulator, the baby carriage frame including being provided with traveling wheel, be provided on baby carriage frame for traveling wheel into
The brake gear of row braking, brake gear include hand-held when pushing away perambulator walking for operator and can opposite baby carriage frame movements
Operation handle, is provided with handle reset spring between operation handle and baby carriage frame, brake gear further include friction plate and for
The friction plate applies elastic acting force and makes the tripping spring of the friction plate Yu traveling wheel frictional fit, operation handle and brake
It is connected between vehicle piece by control mechanism, controls mechanism controls when operation handle overcomes handle action of reset spring power and moves
The friction plate overcomes the active force of the tripping spring and friction plate is made to release the braking to traveling wheel, resets in operation handle
When friction plate by tripping spring active force and with traveling wheel contact frictional fit.
The upper end of baby carriage frame has trammer handle, and the operation handle is by being articulated on the trammer handle, the control
Mechanism includes the bracing wire being connected between the operation handle and friction plate.
Operation handle is made of the trammer handle for being located at baby carriage frame upper end, and trammer handle extends in left-right direction, cart hand
Guiding movement is assemblied on the guide frame being arranged on the baby carriage frame handle along the longitudinal direction, is provided with described in driving on baby carriage frame
For friction plate towards the braking unlocking motor mobile far from the traveling wheel, control mechanism includes controller and for detecting the cart
The displacement sensor of handle displacement signal is additionally provided with to the braking unlocking motor, displacement sensor and control on baby carriage frame
The power supply of device power supply, controller and institute's displacement sensors sampling connection are connected with braking unlocking motor control.
The guide frame includes between left and right every setting and the left leading arm that extends along the longitudinal direction of length and right guiding
Arm, is provided with the long guiding hole extended along the longitudinal direction on left and right leading arm, and the left and right ends of trammer handle are and corresponding are oriented to
The guide end of long hole guiding movement cooperation.
Guide end is the square axle structure cooperated 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 reset spring includes the left reset spring and right reset bullet that top is set between cross-brace arm and the corresponding end of trammer handle
Spring, left and right reset spring are located in left and right leading arm.
It is additionally provided on baby carriage frame and the assist motor of corresponding traction drive connection, the assist motor and the control
Device control connection.
Operation handle is made of the trammer handle for being located at baby carriage frame upper end, and trammer handle extends in left-right direction, cart hand
Guiding movement is assemblied on the guide frame being arranged on the baby carriage frame handle along the longitudinal direction, and control mechanism includes current supply circuit,
String is equipped with power supply and braking unlocking motor on current supply circuit, and braking unlocking motor and the friction plate are sequentially connected when being powered
Drive the friction plate towards mobile far from the traveling wheel, one section as the current supply circuit of trammer handle, current supply circuit tool
There is the contact being set in trammer handle shift motion, there is trammer handle movement facing forward contacted with contact current supply circuit is connected
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 operator pushes perambulator walking, operator exerts a force to operation handle, this
When operation handle with respect to baby carriage frame generate displacement, control mechanism controls friction plate and releases to the locking of traveling wheel, and traveling wheel can be just
Often walking, when because there is thing to influence operator, such as takes pictures or makes a phone call, operator's meeting at this time and perambulator
It does not contact, operation handle no longer stress, by handle action of reset spring, operation handle resets, and friction plate is acted on by tripping spring
Power and with traveling wheel contact frictional fit, traveling wheel is locked up at once at this time, that is to say, that only operator to operation handle
When force, friction plate can just be unlocked traveling wheel, and when force terminates, friction plate is realized automatically by tripping spring to traveling wheel
Locking, be not required to operator and carry out other operations, therefore is virgin caused by can effectively avoiding operator from forgetting operation
Vehicle car slipping problem can effectively guarantee the safety of child in perambulator.
Further, use bracing wire as the one form of them of control mechanism, reason is by the brake cable in bicycle
Anticaustic, when operator pushes away baby carriage frame movement, operator also holds operation handle, and operation handle is rubbed by bracing wire drive
Pad movement, friction plate overcomes the active force of tripping spring and releases the braking to traveling wheel at this time, as operator and perambulator
After frame is detached from, by the reset response of tripping spring, friction plate carries out locking to traveling wheel automatically, and guy structure is simple, cost compared with
It is low.
Further, as another form of control mechanism, operation handle is made of trammer handle, in operator
When push perambulator movement, because of the factor of car resistance, trammer handle can generate certain displacement by baby carriage frame relatively, and displacement passes
Sensor detects that the displacement, controller just control braking unlocking motor movement, and braking unlocking motor driving friction plate is far from row
It walks to take turns and unlock, as operator and trammer handle disengaging, trailer handle is acted on by handle spring to be resetted, controller releasing pair
The control of unlocking motor is braked, tripping spring realizes the automatic locking to traveling wheel with movable friction plate.
Further, as another form of control mechanism, operation handle is made of trammer handle, in operator
When push perambulator movement, because of the factor of car resistance, the opposite baby carriage frame of trammer handle meeting generates certain displacement, pushes away at this time
Cart handle can contact to realize the conducting of current supply circuit with the contact in current supply circuit, brake unlocking motor movement at this time and drive
Movable friction plate unlock, when trammer handle resets, trammer handle and contact are disconnected, braking unlocking motor must not electricity, friction plate by
Tripping spring is acted on to traveling wheel automatic locking, is without the use of controller and sensor, and also simplification finishes to a certain extent
Structure.
Detailed description of the invention
Fig. 1 is a schematic structural view of Embodiment 1 of the present invention；
Fig. 2 is the perspective view of Fig. 1；
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 schematic diagram of the current supply circuit in the embodiment of the present invention 2；
Fig. 6 is the brake schematic illustration of the embodiment of the present invention 3.
Specific embodiment
The embodiment 1 of travelling perambulator is as shown in figures 1-4: including bottom setting there are four the baby carriage frame 3 of traveling wheel 4, four
In a traveling wheel, two forward traveling wheels of position are deflecting roller, and the traveling wheel of position rearward is directional wheel, the rotation of directional wheel
Axis extends in left-right direction.Baby carriage frame includes the left vehicle frame to be linked together by fold mechanism and 32 right vehicles in the present embodiment
Frame 31 is also connected with seat cloth between left and right vehicle frame, and child can be sitting on seat cloth, and fold mechanism includes that a scissors connect
Arm 6 and a folding linking arm 5 are connect, left vehicle frame and right vehicle frame folding may be implemented one in scissors linking arm 6 and folding linking arm 5
It rises, to reduce the width on baby carriage frame left and right directions, this folding baby carriage frame belongs to the prior art, and specific structure is herein
No longer it is described in detail.
The upper end of baby carriage 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
It sets, it in this way can be to avoid the influence folded size excessive in left and right vehicle frame folding.Left and right guide frame is specifically set
It sets that form is identical, now only describes in detail to the specific structure of left guide frame, left guide frame includes left 12 He of leading arm
Right leading arm 14, the front end of left and right leading arm are connected with cross-brace arm 13, and left and right leading arm and cross-brace arm 13 use
Rhs-structure, two vertical support arms 7 being connected with left and right guide frame also use rhs-structure.It is offered on left and right leading arm
The long guiding hole 11 that guide direction extends along the longitudinal direction, perambulator further include extending in left-right direction of holding for operator
Operation handle 8, operator's hand-held handle 8 realizes the movement for pushing baby carriage frame, therefore operation handle 8 in the present embodiment
It can be described as trammer handle again, the both ends of trammer handle are individually directed movement and are assemblied in corresponding long guiding hole 11, while pushing hands
It the both ends of handle 8 on the one hand can be to avoid cart hand by the cooperation of square axle structure and long guiding hole 11 using square axle structure 81
In addition handle rotation also can be convenient and handle reset spring 16 be arranged, in the present embodiment, handle reset spring 16 withstands on transverse direction respectively
Between support arm 13 and the both ends of trammer handle 8, while handle reset spring is located in the inner hole of left and right leading arm.
Perambulator further includes friction plate 20 and so that friction plate is rubbed with traveling wheel for applying elastic acting force to friction plate 20
The tripping spring 21 for wiping cooperation, is connected by control mechanism between trammer handle 8 and friction plate 20, driving is provided on baby carriage frame
Friction plate is braked towards the braking unlocking motor 22 mobile far from traveling wheel and passes through lead screw silk between unlocking motor 22 and friction plate 20
Parent agency 29 is connected, and screw-nut mechanism can convert linearly operating for the rotational action for braking unlocking motor 22, thus real
Now towards far from the movement of traveling wheel direction, control mechanism includes controller 23 and is displaced for detecting trammer handle band movable friction plate 20
The displacement sensor 24 of signal is additionally provided with the electricity powered to braking unlocking motor, displacement sensor and controller on baby carriage frame
Source, power supply is battery in the present embodiment.It is additionally provided on baby carriage frame and the assist motor of corresponding traction drive connection, power-assisted electricity
Machine and controller control connect.
When in use, when operator does not exert a force to trammer handle, by the effect of handle reset spring, trammer handle one
The straight right end for being in long guiding hole, the displacement signal of trammer handle, controller control system is not detected in displacement sensor at this time
Dynamic unlocking motor is failure to actuate, and by the active force of tripping spring, friction plate and traveling wheel frictional fit, traveling wheel are in locking shape
State；When needing mobile perambulator, operator holds trammer handle and pushes perambulator forward, since there are running resistance, institutes for perambulator
Displacement can be generated by baby carriage frame relatively with trammer handle, and displacement sensor 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 work of tripping spring
Firmly to make friction plate move towards far from traveling wheel, to release the locking to traveling wheel, operator can push perambulator
Mobile, perambulator is in moving process, and due to the running resistance of perambulator, trammer handle is not at the right end of long guiding hole, because
This displacement sensor can be held in unlocked state with constant testing to displacement signal, friction plate, when operator is no longer to cart
Handle force, such as operator answers the call, takes a picture, rests, trammer handle resets, and braking unlocking motor does not reoperate,
Friction plate is resetted to traveling wheel locking at this time.During cart, if encountering upward slope or road not usually, the shifting of perambulator
Dynamic resistance can become larger, and trammer handle can generate bigger displacement with respect to baby carriage frame at this time, and controller can control power-assisted electricity at this time
Motor-driven work, assist motor provide power-assisted for operator, so that more easily pushing perambulator.In the present invention, displacement
The connection relationship of sensor and controller and controller and braking unlocking motor, assist motor belongs to the prior art, herein no longer
It is described in detail.It is of the invention it is critical that friction plate just unlocks, when pushing away for trammer handle when operator is to when being pushed forward trammer handle
When power disappears, mustn't artificially it control, friction plate can realize the locking to traveling 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 of guide frame guiding stroke, and trammer handle may be at guide frame guiding at this time
The middle part of stroke, in this way when pulling back trammer handle, displacement sensor can detecte 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 perambulator as shown in figure 5, do not have unlike the first embodiment, in the present embodiment controller,
Assist motor and displacement sensor, brake unlocking motor 22 and power supply 25 is in a current supply circuit, and trammer handle 8 is as power supply
One section of circuit, current supply circuit have the contact 30 being set in trammer handle shift motion, and trammer handle has mobile forward
It contacts with contact and is broken so that the first working position of current supply circuit is connected and is moved backwards by handle action of reset spring power with contact
The second working position opened.In actual use, when trammer handle does not stress, the electric shock of trammer handle and current supply circuit is disconnected,
Braking unlocking motor akinesia without electricity at this time, tripping spring band movable friction plate carries out locking to traveling wheel, when cart hand
When handle moves forward relative to baby carriage frame, trammer handle will be connected with the contact in current supply circuit, and braking unlocking motor obtains electronic
Make and drives friction plate towards moving far from traveling wheel direction, to realize unlock.Due to having lacked controller and displacement sensor,
On the one hand product cost can be reduced, use of the still further aspect due to reducing electrical part can also reduce the failure rate of perambulator.
Arrow direction indicates moving direction, that is, front-rear direction of trammer handle in Fig. 5.
The embodiment 3 of travelling perambulator is as shown in Figure 6: embodiment 3 unlike the first embodiment, in the present embodiment, does not have
Controller, assist motor, displacement sensor and the braking electrical parts such as unlocking motor, using pure mechanic structure come reality in the present embodiment
The connection of existing operation handle 82 and friction plate 20, operation handle 82 are no longer made of trammer handle, and trammer handle 81 is that handlebar is solid
Due on baby carriage frame, operation handle 82 is then articulated on trammer handle, and operation handle can be located at the front side or rear side of fixed handle,
Operation handle is connected by bracing wire 83 with friction plate, this is somewhat similarly to the brake of bicycle in the prior art, is only different
It is that the brake of bicycle is to hold brake lever and realize brake, is when unclamping operation handle 82, in tripping spring 21 in the present invention
Under the action of, friction plate contacts realization brake with traveling wheel 4, and when hand-held operation handle 82, bracing wire passes through 84 drawing friction of pull rod
Piece 20 and traveling wheel, which are detached from, realizes unlock.In actual use, operator can be with the behaviour that also holds with a firm grip while hand push trammer handle
Make handle, thus can normally push perambulator movement, after operator and perambulator are detached from, operation handle and friction plate are equal
It can reset, to realize the automatic locking to traveling wheel.
Claims (5)
1. a kind of travelling perambulator is provided on baby carriage frame for traveling wheel including the baby carriage frame there are four traveling wheel is arranged
The brake gear braked, it is characterised in that: brake gear includes hand-held when pushing away perambulator walking for operator and can phase
The operation handle mobile to baby carriage frame, is provided with handle reset spring, brake gear further includes between operation handle and baby carriage frame
Friction plate and make the braking bullet of the friction plate Yu traveling wheel frictional fit for applying elastic acting force to the friction plate
Spring is connected between operation handle and brake block by control mechanism, is overcome handle action of reset spring power in operation handle and is moved
Friction plate described in control mechanism controls overcomes the active force of the tripping spring and friction plate is made to release the system to traveling wheel when dynamic
Dynamic, when operation handle resets, friction plate contacts frictional fit by tripping spring active force and with traveling wheel, and operation handle is by position
Trammer handle in baby carriage frame upper end is constituted, and trammer handle extends in left-right direction, trammer handle guiding movement along the longitudinal direction
It is assemblied on the guide frame being arranged on the baby carriage frame, the driving friction plate is provided on baby carriage frame towards far from the walking
Take turns mobile braking unlocking motor, control mechanism includes controller and for detecting the cart when trammer handle moves forward
The displacement sensor of handle displacement signal is additionally provided with to the braking unlocking motor, displacement sensor and control on baby carriage frame
The power supply of device power supply, controller and institute's displacement sensors sampling connection are connected with braking unlocking motor control.
2. travelling perambulator according to claim 1, it is characterised in that: the guide frame include between left and right every setting and
The left leading arm and right leading arm that length extends along the longitudinal direction are provided on left and right leading arm and to extend along the longitudinal direction
Long guiding hole, the left and right ends of trammer handle are the guide end cooperated with corresponding long guiding hole guiding movement.
3. travelling perambulator according to claim 2, it is characterised in that: guide end is the side cooperated with long guiding hole rotation stop
Axle construction.
4. travelling perambulator according to claim 2, it is characterised in that: left and right leading arm is rhs-structure, left and right
The front end of leading arm is provided with the cross-brace arm of rhs-structure, and handle reset spring includes that top is set to cross-brace arm and cart
Left reset spring and right reset spring between the corresponding end of handle, left and right reset spring are located in left and right leading arm.
5. travelling perambulator according to claim 1, it is characterised in that: be additionally provided on baby carriage frame and passed with corresponding traveling wheel
The assist motor of dynamic connection, the assist motor and controller control connect.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610521106.5A CN106080732B (en) | 2016-07-05 | 2016-07-05 | A stroller for travel |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610521106.5A CN106080732B (en) | 2016-07-05 | 2016-07-05 | A stroller for travel |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN106080732A CN106080732A (en) | 2016-11-09 |
| CN106080732B true CN106080732B (en) | 2018-12-28 |
Family
ID=57212127
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201610521106.5A Active CN106080732B (en) | 2016-07-05 | 2016-07-05 | A stroller for travel |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN106080732B (en) |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107933671A (en) * | 2017-11-29 | 2018-04-20 | 浙江多宝贝婴童用品有限公司 | A kind of baby stroller of automatic parking |
| CN109677479A (en) * | 2019-03-04 | 2019-04-26 | 北京小李行车科技发展有限公司 | A kind of hand propelled delivery vehicle and braking control system |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP0778193A1 (en) * | 1995-12-05 | 1997-06-11 | Wanzl Metallwarenfabrik Gmbh | Trolley with controlling cable adjusting device for the brakes |
| CN201183505Y (en) * | 2008-01-30 | 2009-01-21 | 中山市盛加塑料制品有限公司 | Handcart with brake self-locking device |
| CN201404383Y (en) * | 2009-05-19 | 2010-02-17 | 常州中进医疗器材有限公司 | wheelchair braking mechanism |
| CN103738385A (en) * | 2014-01-15 | 2014-04-23 | 冯俊奇 | Automatic stroller sliding locking system |
| CN104401381A (en) * | 2014-11-14 | 2015-03-11 | 好孩子儿童用品有限公司 | Electric brake mechanism and baby carrier |
-
2016
- 2016-07-05 CN CN201610521106.5A patent/CN106080732B/en active Active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP0778193A1 (en) * | 1995-12-05 | 1997-06-11 | Wanzl Metallwarenfabrik Gmbh | Trolley with controlling cable adjusting device for the brakes |
| CN201183505Y (en) * | 2008-01-30 | 2009-01-21 | 中山市盛加塑料制品有限公司 | Handcart with brake self-locking device |
| CN201404383Y (en) * | 2009-05-19 | 2010-02-17 | 常州中进医疗器材有限公司 | wheelchair braking mechanism |
| CN103738385A (en) * | 2014-01-15 | 2014-04-23 | 冯俊奇 | Automatic stroller sliding locking system |
| CN104401381A (en) * | 2014-11-14 | 2015-03-11 | 好孩子儿童用品有限公司 | Electric brake mechanism and baby carrier |
Also Published As
| Publication number | Publication date |
|---|---|
| CN106080732A (en) | 2016-11-09 |
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