CN209236634U - A kind of auxiliary wheel device of electric wheelchair - Google Patents
A kind of auxiliary wheel device of electric wheelchair Download PDFInfo
- Publication number
- CN209236634U CN209236634U CN201821803511.7U CN201821803511U CN209236634U CN 209236634 U CN209236634 U CN 209236634U CN 201821803511 U CN201821803511 U CN 201821803511U CN 209236634 U CN209236634 U CN 209236634U
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- auxiliary wheel
- bracket
- electric wheelchair
- rotating member
- locking
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Abstract
The auxiliary wheel device of a kind of electric wheelchair disclosed by the utility model, comprising: the bracket being fixed on wheel chair frame is provided with arc chute and two lock grooves on bracket；Locking and unlocking mechanism have rotating member, lock pin, locking spring and release lever；One end of rotating member is hinged on the other end of bracket, and lock pin sliding configuration is on rotating member and is inserted into arc chute, and release lever is fixedly connected with lock pin；One end of auxiliary wheel installation part is fixedly connected with the other end of rotating member, and other end axis is equipped with auxiliary wheel, and locking spring is arranged between release lever and one end of auxiliary wheel installation part.Auxiliary wheel when walking, can be lifted up an angle by the auxiliary wheel device of the electric wheelchair of the utility model, not with ground face contact, but be can be prevented from electric wheelchair and tumbled backward.After electric wheelchair folding, auxiliary wheel is pressed downward next angle, and ground face contact, to be supported to electric wheelchair.
Description
Technical field
The utility model relates to wheelchair technical field, in particular to a kind of auxiliary wheel device of electric wheelchair.
Background technique
For electric wheelchair, since motor and battery are mounted on the rear side of electric wheelchair skeleton, leaned on when taking people
When on the chair back of electric wheelchair, electric wheelchair is easy to tumble backward, brings insecurity.In addition electric wheelchair fore-aft fold
Afterwards, it since center of gravity is rear, needs to rely on an object or wall, could stand, it is very inconvenient.
Utility model content
The technical problem to be solved by the utility model is to being tumbled backward for being easy present in existing electric wheelchair and
Needing to lean against a wall after folding just can account for vertical problem and providing one kind prevents after tumbling and folding backward without relying on energy
The auxiliary wheel device of the electric wheelchair of standing.
Technical problem to be solved in the utility model can be achieved through the following technical solutions；
A kind of auxiliary wheel device of electric wheelchair, comprising:
One end is fixed on the bracket on wheel chair frame, and an arc chute and two lockings are arranged in the other end of the bracket
Slot, two lock grooves are connected to the both ends of the arc chute respectively；
One locking and unlocking mechanism, the locking and unlocking mechanism have an at least rotating member, a lock pin, at least one lock
Only spring, a release lever；One end of the rotating member is hinged on the other end of the bracket, and the lock pin sliding configuration exists
On the rotating member and it is inserted into the arc chute and is respectively embedded in two lock grooves two locking positions, the solution
Lock handle is fixedly connected with the lock pin；
One end of one auxiliary wheel installation part, the auxiliary wheel installation part is fixedly connected with the other end of the rotating member,
The other end axis of the auxiliary wheel installation part is equipped with auxiliary wheel, and the locking spring is arranged in the release lever and the auxiliary
Between the one end for taking turns installation part.
In a preferred embodiment of the utility model, the bracket is a u-bracket, the transverse arm of the u-bracket
It is fixed on the wheel chair frame, is each provided with the arc chute and two locks in two vertical arm ends of the u-bracket
Only slot；There are two rotating members for the locking and unlocking mechanism tool, and one end of two rotating members is respectively hinged at the u-bracket
On two vertical arm ends, sliding configuration on two rotating members and is each passed through the u-bracket respectively at the both ends of the lock pin
In arc groove on two vertical arm ends.
Due to using technical solution as above, the auxiliary wheel device of the electric wheelchair of the utility model when walking, can
Auxiliary wheel is lifted up an angle, not with ground face contact, but electric wheelchair is can be prevented from and tumbles backward.In electric wheelchair
After folding, auxiliary wheel is pressed downward next angle, and ground face contact, to be supported to electric wheelchair.
Detailed description of the invention
Fig. 1 is the auxiliary wheel device assembling schematic diagram of the utility model electric wheelchair.
Fig. 2 is the structure top view of the auxiliary wheel device of the utility model electric wheelchair.
Fig. 3 is the A-A cross-sectional view of Fig. 2.
Fig. 4 is status diagram of the auxiliary wheel device of the utility model electric wheelchair when electric wheelchair is walked.
Fig. 5 is status diagram of the auxiliary wheel device of the utility model electric wheelchair when electric wheelchair folds.
Specific embodiment
The utility model is further described below in conjunction with the drawings and specific embodiments.
Referring to Fig. 1 to Fig. 3, the auxiliary wheel device of electric wheelchair shown in figure, including bracket 100, locking and Xie Suoji
Structure 200, auxiliary wheel installation part 300 and a pair of of auxiliary wheel 410,420.
Bracket 100 is a u-bracket, and the transverse arm 110 of the u-bracket is weldingly fixed on wheel chair frame 500, in U-shaped branch
Two vertical arm, 120 end of frame is each provided with an arc chute 121 and two lock grooves 122,123, two lock grooves 122,
123 are connected to the both ends of arc chute 121 respectively.
There are two 210, lock pins 220 of rotating member, a locking spring 230 and a unlocks for locking and the tool of unlocking mechanism 200
Handle 240；One end of two rotating members 210 passes through pin shaft 211 respectively and is hinged on two vertical arm, 120 end of u-bracket.Lock pin
220 both ends respectively sliding configuration on two rotating members 120 and the arc that is each passed through on two vertical arm, 120 end of u-bracket
In shape slot 121.Such as an elongated slot (not shown), the both ends of lock pin 220 can be each provided on two rotating members 210
Across elongated slot.
The both ends of lock pin 220 are respectively embedded in two lock grooves 122,123 at two locking positions, release lever 240
It is fixedly connected with lock pin 220；Auxiliary wheel installation part 300 is also U-shaped part, the transverse arm 310 of auxiliary wheel installation part 300 and two rotations
Part 210 is welded to connect, and locking spring 230 is arranged between release lever 240 and 310 one end of transverse arm of auxiliary wheel installation part 300.
Axis is located at two vertical arm 320 of auxiliary wheel installation part 300,330 ends to two auxiliary wheels 410,420 respectively.
In conjunction with referring to fig. 4 and Fig. 5, the auxiliary wheel device application method of the electric wheelchair of the utility model are as follows:
When electric wheelchair when walking, release lever 240 is pressed, with pendulum lock pin 230 in the elastic force for overcoming locking spring 230
After draw back so that lock groove 122 is exited at the both ends of lock pin 230, release locking.Auxiliary wheel installation part 300 is lifted then up.
Arc groove of the auxiliary wheel installation part 300 during being lifted up, on two vertical arm, 120 end of the both ends u-bracket of lock pin 230
Sliding in 121, the position until sliding into lock groove 123, at this time under the effect of locking spring 230, locking spring 230 passes through unlock
Handle 240 drives the both ends of lock pin 230 to enter in lock groove 123, is locked up again.Under this lockup state, two auxiliary
Help wheel 410,420 to leave ground, form anti-tipping angle between the traveling wheel 510 in electric wheelchair, when electric wheelchair backward
When tumbling, two auxiliary wheels 410,420 can be supported on the ground, and electric wheelchair is prevented to continue to tumble backward.
After electric wheelchair folds, release lever 240 is pressed, with pendulum lock pin 230 after the elastic force for overcoming locking spring 230
It draws back, so that lock groove 123 is exited at the both ends of lock pin 230, releases locking.Auxiliary wheel installation part 300 is lifted then up.It is auxiliary
Help arc groove of the wheel installation part 300 during being lifted up, on two vertical arm, 120 end of the both ends u-bracket of lock pin 230
Sliding in 121, the position until sliding into lock groove 122, at this time under the effect of locking spring 230, locking spring 230 passes through unlock
Handle 240 drives the both ends of lock pin 230 to enter in lock groove 122, is locked up again.Under this lockup state, two auxiliary
It helps the support of wheel 410,420 on the ground, folded electric wheelchair is supported.
Claims (2)
1. a kind of auxiliary wheel device of electric wheelchair characterized by comprising
One end is fixed on the bracket on wheel chair frame, and an arc chute and two lock grooves are arranged in the other end of the bracket,
Two lock grooves are connected to the both ends of the arc chute respectively；
One locking and unlocking mechanism, the locking and unlocking mechanism have an at least rotating member, a lock pin, at least a locking bullet
Spring, a release lever；One end of the rotating member is hinged on the other end of the bracket, and the lock pin sliding configuration is described
On rotating member and it is inserted into the arc chute and is respectively embedded in two lock grooves two locking positions, the unlock hand
Handle is fixedly connected with the lock pin；
One end of one auxiliary wheel installation part, the auxiliary wheel installation part is fixedly connected with the other end of the rotating member, described
The other end axis of auxiliary wheel installation part is equipped with auxiliary wheel, and the locking spring setting is pacified in the release lever and the auxiliary wheel
Between one end of piece installing.
2. a kind of auxiliary wheel device of electric wheelchair as described in claim 1, which is characterized in that the bracket is a U-shaped branch
Frame, the transverse arm of the u-bracket are fixed on the wheel chair frame, are each provided in two vertical arm ends of the u-bracket
The arc chute and two lock grooves；There are two rotating member, one end point of two rotating members for the locking and unlocking mechanism tool
Be not hinged on two vertical arm ends of the u-bracket, the both ends of lock pin difference sliding configuration on two rotating members simultaneously
It is each passed through in the arc groove on two vertical arm ends of the u-bracket.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821803511.7U CN209236634U (en) | 2018-11-03 | 2018-11-03 | A kind of auxiliary wheel device of electric wheelchair |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821803511.7U CN209236634U (en) | 2018-11-03 | 2018-11-03 | A kind of auxiliary wheel device of electric wheelchair |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN209236634U true CN209236634U (en) | 2019-08-13 |
Family
ID=67526904
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201821803511.7U Active CN209236634U (en) | 2018-11-03 | 2018-11-03 | A kind of auxiliary wheel device of electric wheelchair |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN209236634U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112720407A (en) * | 2020-12-21 | 2021-04-30 | 行星算力(深圳)科技有限公司 | Auxiliary wheel lifting mechanism and wheeled robot |
| TWI726452B (en) * | 2019-10-22 | 2021-05-01 | 國立屏東科技大學 | Caster for a wheelchair |
-
2018
- 2018-11-03 CN CN201821803511.7U patent/CN209236634U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| TWI726452B (en) * | 2019-10-22 | 2021-05-01 | 國立屏東科技大學 | Caster for a wheelchair |
| CN112720407A (en) * | 2020-12-21 | 2021-04-30 | 行星算力(深圳)科技有限公司 | Auxiliary wheel lifting mechanism and wheeled robot |
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