CN210158823U - Brake device of wheelchair - Google Patents
Brake device of wheelchair Download PDFInfo
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- CN210158823U CN210158823U CN201920707446.6U CN201920707446U CN210158823U CN 210158823 U CN210158823 U CN 210158823U CN 201920707446 U CN201920707446 U CN 201920707446U CN 210158823 U CN210158823 U CN 210158823U
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Abstract
The utility model discloses a brake device of a wheelchair, which comprises a wheelchair foot lever, a caster, a lever piece and a return spring jacking piece; the caster wheels are arranged at the bottom ends of the wheelchair foot bars; the upper end of the lever piece is transversely connected with a brake friction rod which is arranged on a rolling surface close to a caster, and the lower end of the lever piece is fixedly connected with a steel wire rope; a return spring for releasing the brake is connected between the lower end of the lever piece and the return spring jacking piece; the hand brake of the wheelchair pulls the steel wire rope to enable the brake friction rod of the lever sheet to generate friction brake with the rolling surface of the caster; the structure is simple, the design is reasonable, the brake device has few parts, the use is flexible, and the like.
Description
Technical Field
The utility model relates to a wheelchair device, in particular to a brake device of a wheelchair.
Background
Most of the old people and patients who have inconvenient movement need to sit on the wheelchair, the brake devices of the wheelchair are various, and the flexibility of the wheelchair is reduced after the existing brake devices are used for a certain time.
SUMMERY OF THE UTILITY MODEL
In order to solve the technical problem, the utility model provides a simple structure, reasonable in design, the brake equipment part is few, uses the brake equipment of nimble wheelchair.
A brake device of a wheelchair comprises a wheelchair foot lever, a caster, a lever piece and a return spring jacking piece; the caster wheels are arranged at the bottom ends of the wheelchair foot bars; the upper end of the lever piece is transversely connected with a brake friction rod which is arranged on a rolling surface close to the caster; the lower end of the lever piece is fixedly connected with a steel wire rope; a return spring for releasing the brake is connected between the lower end of the lever piece and the return spring jacking piece; the hand brake of the wheelchair pulls the steel wire rope to enable the brake friction rod of the lever piece to generate friction brake with the rolling surface of the caster.
The technical scheme is further as follows: the brake device also comprises a chair seat and a chair back frame, wherein the wheelchair foot rods are connected with the chair seat, and the chair back frame is connected with the chair seat; the hand brake is installed on the side of the seat of the chair or the chair back frame and connected with the steel wire rope, and the steel wire rope is pulled through the hand brake to drive the lever piece to press the brake friction rod on the rolling surface of the caster wheel to generate friction braking.
The technical scheme is further as follows: the chair back frame comprises a left chair back rod and a right chair back rod, and a backrest is fixed between the left chair back rod and the right chair back rod; a hand brake is movably arranged between the tops of the left chair back rod and the right chair back rod, and comprises a left hand brake fixing piece fixedly connected to the top of the left chair back rod, a right hand brake fixing piece fixedly connected to the top of the right chair back rod and a hand brake rod; the inner side of the left hand brake fixing piece is provided with a left inner concave cavity, a cavity opening of the left inner concave cavity is provided with a left cavity cover piece, the left cavity cover piece penetrates through the middle of the left inner concave cavity of the left hand brake fixing piece through a nail body and is connected with the middle of the left inner concave cavity of the left hand brake fixing piece, and the left cavity cover piece can rotate; the left inner concave cavity is connected with a left reset spring, one end of the left reset spring is connected with the inner wall of the left inner concave cavity, the other end of the left reset spring is connected with the inner wall of a left cavity cover piece, and the left cavity cover piece is elastically connected with a left brake fixing piece through the left reset spring; the top of the right chair back rod is connected with a right hand brake fixing piece, the inner side of the right hand brake fixing piece is provided with a right inner concave cavity, a cavity opening of the right inner concave cavity is provided with a right cavity cover piece, the right cavity cover piece is connected with the middle of the right inner concave cavity of the right hand brake fixing piece in a manner of traversing the middle through a nail body, and the right cavity cover piece can rotate; the right inner concave cavity is connected with a right reset spring, one end of the right reset spring is connected with the inner wall of the right inner concave cavity, the other end of the right reset spring is connected with the inner wall of the right cavity cover part, and the right cavity cover part is elastically connected with the right hand brake fixing part through the right reset spring; a hand brake rod is fixedly connected between the left cavity cover piece and the right cavity cover piece; a hand-held cross rod is connected to the top end between the left hand brake fixing piece and the right hand brake fixing piece; the upper end of the steel wire rope is fixedly connected with the left cavity cover piece or the right cavity cover piece; the palm is pressed on the hand-held cross rod, the hand brake rod is pulled by fingers to enable the left cavity cover piece and the right cavity cover piece to rotate, and the left cavity cover piece and the right cavity cover piece rotate to pull the steel wire rope to enable the brake friction rod of the lever piece and the rolling surface of the caster to generate friction braking.
The technical scheme is further as follows: the two brake devices are respectively arranged on the wheelchair foot rods at the left and right rear sides of the wheelchair; the upper ends of outer layer wire pipes of the two steel wire ropes are respectively fixed on the corresponding left hand brake fixing piece and right hand brake fixing piece, and the upper ends of the wire cores are respectively fixedly connected with the corresponding left cavity cover piece and right cavity cover piece.
The technical scheme is further as follows: the inboard swing joint of left hand brake mounting or right hand brake mounting has the manual brake pole to support to detain, and the manual brake pole hand power promotes the back with supporting to detain the tight manual brake pole of top and can make the rolling surface that the brake friction stick compressed tightly the truckle for a long time can not roll.
The utility model discloses a brake equipment of wheelchair beneficial effect is: the brake device comprises a wheelchair foot rod, a caster, a lever piece and a return spring jacking piece; the lever piece is connected to the foot rod of the wheelchair through the middle part of the nail body and forms a movable connection, the nail body connected in the middle of the lever piece in a penetrating way becomes a middle fulcrum of the lever, the upper end of the lever piece is transversely connected with a brake friction rod, and the brake friction rod is arranged on the rolling surface close to the caster; a return spring for releasing the brake is connected between the lower end of the lever piece and the return spring jacking piece; the hand brake of the wheelchair pulls the wire rope core to enable the brake friction rod of the lever piece and the rolling surface of the caster wheel to generate friction brake, and the wire rope based on the lever principle pulls the lower end of the lever piece to enable the upper end of the lever piece to press down the rolling surface of the caster wheel to generate friction brake. The structure is simple, the design is reasonable, the brake device has few parts, the use is flexible, and the like.
Drawings
FIG. 1 is a perspective view of a brake apparatus of the present invention;
FIG. 2 is a perspective view of the brake apparatus of the present invention applied to a wheelchair;
FIG. 3 is a perspective view of the brake apparatus of the present invention applied to a wheelchair;
FIG. 4 is a perspective view of the left brake fixing part of the utility model;
fig. 5 is a perspective view of the right hand brake fixing part of the utility model.
Detailed Description
As shown in fig. 1 to 2: a brake device of a wheelchair comprises a wheelchair foot lever 1, a caster 2, a lever 3 and a return spring jacking piece 4; the caster wheel 2 is arranged at the bottom end of the wheelchair foot rod 1; the middle of the lever piece 3, through which the nail body penetrates, is connected to the wheelchair foot rod 1 and forms a movable connection, the upper end of the lever piece 3 is transversely connected with a brake friction rod 31, the brake friction rod 31 is arranged on a rolling surface close to the caster 2, and the lower end of the lever piece 3 is fixedly connected with a steel wire rope 5; a return spring 41 for releasing the brake is connected between the lower end of the lever piece 3 and the return spring jacking piece 4; the steel wire rope 5 is pulled by the hand brake of the wheelchair, so that the brake friction rod 31 of the lever plate 3 and the rolling surface of the caster 2 generate friction brake.
As shown in fig. 1 to 2: the brake device also comprises a chair seat 6 and a chair back frame 7, the wheelchair foot rod 1 is connected with the chair seat 6, and the chair back frame 7 is connected with the chair seat 6; install manual brake 8 on the side of seat 6 or the back of the chair frame 7, manual brake 8 is connected with wire rope 5, and 8 pulling wire rope 5 through manual brake drive lever piece 3 press the friction stick 31 of braking at the rolling surface of truckle 2 and take place the friction brake.
As shown in fig. 1 to 5: the chair back frame 7 comprises a left chair back rod 71 and a right chair back rod 72, and a backrest 73 is fixed between the left chair back rod 71 and the right chair back rod 72; a hand brake 8 is movably arranged between the tops of the left seat back rod 71 and the right seat back rod 73, and the hand brake 8 comprises a left hand brake fixing part 711 fixedly connected to the top of the left seat back rod 71, a right hand brake fixing part 721 fixedly connected to the top of the right seat back rod 72 and a hand brake rod 7A; a left inner concave cavity 712 is arranged on the inner side of the left brake fixing member 71, a left cavity cover member 713 is arranged at the cavity opening of the left inner concave cavity 712, the left cavity cover member 713 is connected with the middle of the left inner concave cavity 712 of the left brake fixing member 711 in a way that the nail body traverses through the middle, and the left cavity cover member 713 can rotate (namely, the nail body traverses through the left cavity cover member, the left inner concave cavity is fixedly connected with the left brake fixing member, and the left cavity cover member can rotate along the nail body as an axis); a left reset spring 714 is connected in the left inner concave cavity 712, one end of the left reset spring 714 is connected with the inner wall of the left inner concave cavity, the other end of the left reset spring 714 is connected with the inner wall of a left cavity cover piece, and the left cavity cover piece is elastically connected with the left brake fixing piece through the left reset spring; the top of the right chair back rod 72 is connected with a right hand brake fixing piece 721, the inner side of the right hand brake fixing piece 721 is provided with a right inner cavity 722, the cavity opening of the right inner cavity 722 is provided with a right cavity cover member 723, the right cavity cover member 723 is connected with the middle of the right inner cavity of the right hand brake fixing piece through the middle of the nail body traversing, and the right cavity cover member can rotate (namely, the nail body traverses the right cavity cover member, the right inner cavity is fixedly connected with the right hand brake fixing piece, and the right cavity cover member can rotate along the nail body as an axis); a right reset spring 724 is connected in the right inner concave cavity 722, one end of the right reset spring 724 is connected with the inner wall of the right inner concave cavity, the other end of the right reset spring 724 is connected with the inner wall of the right cavity cover part, and the right cavity cover part is elastically connected with the right hand brake fixing part through the right reset spring; a hand brake rod 7A is fixedly connected between the left cavity cover 713 and the right cavity cover 723; a hand-held cross bar 7B is connected to the top end between the left hand brake fixing part 711 and the right hand brake fixing part 721; the upper end of the steel wire rope 5 is fixedly connected with the left cavity cover 713 or the right cavity cover 723; the palm is pressed on the hand-held cross bar 7B, the hand brake rod 7A is pulled by the fingers to enable the left cavity cover 713 and the right cavity cover 723 to rotate, and the left cavity cover and the right cavity cover rotate to pull the steel wire rope 5 to enable the brake friction rod 31 of the lever piece 3 and the rolling surface of the caster 2 to generate friction braking.
The two brake devices are respectively arranged on the wheelchair foot rods at the left and right rear sides of the wheelchair; the upper ends of the two steel wire ropes are fixedly connected with the corresponding left cavity cover piece and the right cavity cover piece respectively, and when the handle brake rod 7A is pulled, the two steel wire ropes 5 can be pulled synchronously to brake.
The inner side of the left hand brake fixing part 711 or the right hand brake fixing part 721 is movably connected with a hand brake rod supporting buckle 7C, when the caster to be braked is not required to roll, the hand brake rod 7A is pulled and lifted by hand and then tightly props up the hand brake rod 7A by the supporting buckle 7C, so that the brake friction rod 31 can press the rolling surface of the caster 2 for a long time and can not roll to stop the wheelchair from moving forward/backward.
The friction lines are arranged on the brake friction rod, so that a friction effect is better achieved, and the brake capacity is better.
Claims (5)
1. A brake device of a wheelchair is characterized in that: the brake device comprises a wheelchair foot rod, a caster, a lever piece and a return spring jacking piece; the caster wheels are arranged at the bottom ends of the wheelchair foot bars; the upper end of the lever piece is transversely connected with a brake friction rod which is arranged on a rolling surface close to a caster, and the lower end of the lever piece is fixedly connected with a steel wire rope; a return spring for releasing the brake is connected between the lower end of the lever piece and the return spring jacking piece; the hand brake of the wheelchair pulls the steel wire rope to enable the brake friction rod of the lever piece to generate friction brake with the rolling surface of the caster.
2. The brake apparatus of a wheelchair as claimed in claim 1, wherein: the brake device also comprises a chair seat and a chair back frame, wherein the wheelchair foot rods are connected with the chair seat, and the chair back frame is connected with the chair seat; the hand brake is installed on the side of the seat of the chair or the chair back frame and connected with the steel wire rope, and the steel wire rope is pulled through the hand brake to drive the lever piece to press the brake friction rod on the rolling surface of the caster wheel to generate friction braking.
3. The brake apparatus for a wheelchair of claim 2, wherein: the chair back frame comprises a left chair back rod and a right chair back rod, and a backrest is fixed between the left chair back rod and the right chair back rod; a hand brake is movably arranged between the tops of the left chair back rod and the right chair back rod, and comprises a left hand brake fixing piece fixedly connected to the top of the left chair back rod, a right hand brake fixing piece fixedly connected to the top of the right chair back rod and a hand brake rod; the inner side of the left hand brake fixing piece is provided with a left inner concave cavity, a cavity opening of the left inner concave cavity is provided with a left cavity cover piece, the left cavity cover piece penetrates through the middle of the left inner concave cavity of the left hand brake fixing piece through a nail body and is connected with the middle of the left inner concave cavity of the left hand brake fixing piece, and the left cavity cover piece can rotate; the left inner concave cavity is connected with a left reset spring, one end of the left reset spring is connected with the inner wall of the left inner concave cavity, the other end of the left reset spring is connected with the inner wall of a left cavity cover piece, and the left cavity cover piece is elastically connected with a left brake fixing piece through the left reset spring; the top of the right chair back rod is connected with a right hand brake fixing piece, the inner side of the right hand brake fixing piece is provided with a right inner concave cavity, a cavity opening of the right inner concave cavity is provided with a right cavity cover piece, the right cavity cover piece is connected with the middle of the right inner concave cavity of the right hand brake fixing piece in a manner of traversing the middle through a nail body, and the right cavity cover piece can rotate; the right inner concave cavity is connected with a right reset spring, one end of the right reset spring is connected with the inner wall of the right inner concave cavity, the other end of the right reset spring is connected with the inner wall of the right cavity cover part, and the right cavity cover part is elastically connected with the right hand brake fixing part through the right reset spring; a hand brake rod is fixedly connected between the left cavity cover piece and the right cavity cover piece; a hand-held cross rod is connected to the top end between the left hand brake fixing piece and the right hand brake fixing piece; the upper end of the steel wire rope is fixedly connected with the left cavity cover piece or the right cavity cover piece; the palm is pressed on the hand-held cross rod, the hand brake rod is pulled by fingers to enable the left cavity cover piece and the right cavity cover piece to rotate, and the left cavity cover piece and the right cavity cover piece rotate to pull the steel wire rope to enable the brake friction rod of the lever piece and the rolling surface of the caster to generate friction braking.
4. A brake apparatus for a wheelchair in accordance with claim 3, wherein: the two brake devices are respectively arranged on the wheelchair foot rods at the left and right rear sides of the wheelchair; the upper ends of outer layer wire pipes of the two steel wire ropes are respectively fixed on the corresponding left hand brake fixing piece and right hand brake fixing piece, and the upper ends of the wire cores are respectively fixedly connected with the corresponding left cavity cover piece and right cavity cover piece.
5. A brake apparatus for a wheelchair in accordance with claim 3, wherein: the inboard swing joint of left hand brake mounting or right hand brake mounting has the manual brake pole to support to detain, and the manual brake pole hand power promotes the back with supporting to detain tight manual brake pole in top and can make the rolling surface that the brake friction stick compressed tightly the truckle for a long time can not roll.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920707446.6U CN210158823U (en) | 2019-05-16 | 2019-05-16 | Brake device of wheelchair |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920707446.6U CN210158823U (en) | 2019-05-16 | 2019-05-16 | Brake device of wheelchair |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN210158823U true CN210158823U (en) | 2020-03-20 |
Family
ID=69792797
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201920707446.6U Active CN210158823U (en) | 2019-05-16 | 2019-05-16 | Brake device of wheelchair |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN210158823U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111888125A (en) * | 2020-07-21 | 2020-11-06 | 中南大学湘雅医院 | Nursing bed for assisting lower limb rehabilitation training of patient |
-
2019
- 2019-05-16 CN CN201920707446.6U patent/CN210158823U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111888125A (en) * | 2020-07-21 | 2020-11-06 | 中南大学湘雅医院 | Nursing bed for assisting lower limb rehabilitation training of patient |
| CN111888125B (en) * | 2020-07-21 | 2021-10-29 | 中南大学湘雅医院 | Nursing bed for assisting lower limb rehabilitation training of patient |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| IP01 | Partial invalidation of patent right | ||
| IP01 | Partial invalidation of patent right |
Commission number: 5W122874 Conclusion of examination: On the basis of claims 1-4 submitted by the patentee on March 15, 2021, claim 1 of utility model zl201920707446.6 is declared invalid, and the patent right continues to be valid on the basis of claims 2-4 Decision date of declaring invalidation: 20210521 Decision number of declaring invalidation: 49823 Denomination of utility model: Brake device for wheelchair Granted publication date: 20200320 Patentee: Li Guohua|Zhang Guoliang |