CN210408817U - Universal wheel hand brake - Google Patents
Universal wheel hand brake Download PDFInfo
- Publication number
- CN210408817U CN210408817U CN201920965742.6U CN201920965742U CN210408817U CN 210408817 U CN210408817 U CN 210408817U CN 201920965742 U CN201920965742 U CN 201920965742U CN 210408817 U CN210408817 U CN 210408817U
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- brake
- hole
- wheelchair
- rotating
- ball head
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- Expired - Fee Related
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- 230000000149 penetrating effect Effects 0.000 claims description 12
- 238000005452 bending Methods 0.000 claims description 6
- 230000004048 modification Effects 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000004880 explosion Methods 0.000 description 1
- 238000000926 separation method Methods 0.000 description 1
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Abstract
The utility model provides a hand brake contracting brake handle of universal wheel, brake wire and brake device, the hand brake handle is arranged under the armrest of the wheelchair, the brake device is fixed on the universal wheel of the wheelchair, the brake wire is connected with the brake handle and the brake device; the lower ends of the supporting legs of the wheelchair are connected with the upper ends of connecting pipes of the wheelchair, the lower ends of the connecting pipes of the wheelchair are rotatably connected with a wheel bracket, and side holes are formed in one sides of the connecting pipes; brake equipment, including ejector pin, brake block, pipe strap and rotation piece, the pipe strap suit is on the connecting pipe, and the pipe strap comprises the circular arc ring body and "7" type structure that have the opening that a slice material made, and this circular arc ring body includes: circular arc annular main part and two parallel plates of opening both sides. The utility model has simple structure, convenient and flexible brake control, and eliminates the potential safety hazard caused by unsafe manual foot brake and the like; the brake handle, the brake cable and the brake device are added on the basis of not changing the original structure, and the lever principle is adopted for braking, so that the labor is saved and the safety is realized.
Description
Technical Field
The utility model belongs to transport means accessory field, concretely relates to universal wheel manual brake.
Background
The movable support frame usually realizes the movable function through the universal wheel, brings very big convenience for work or life, and intensity of labour also greatly reduced, and the brake that adopts in the wheelchair can divide into manual brake and service brake, and it all adopts the universal wheel to embrace the lock function, and the inconvenient regulation of dynamics moreover is unsafe especially when downhill.
Disclosure of Invention
In order to solve the problem the utility model provides an universal wheel hand brake flexible in operation, convenient, safe.
In order to achieve the purpose, the utility model adopts the technical scheme that:
a universal wheel hand brake comprises a brake handle, a brake wire and a brake device, wherein the brake handle is arranged below an armrest of a wheelchair, the brake device is fixed on a universal wheel of the wheelchair, and the brake wire is connected with the brake handle and the brake device;
the lower ends of the supporting legs of the wheelchair are connected with the upper ends of connecting pipes of the wheelchair, the lower ends of the connecting pipes of the wheelchair are rotatably connected with a wheel bracket, and side holes are formed in one sides of the connecting pipes;
the brake device comprises a mandril, a brake pad, a pipe clamp and a rotating part, wherein the pipe clamp is sleeved on a connecting pipe, the pipe clamp is composed of a circular arc annular body which is made of a sheet material and provided with an opening and a 7-shaped structure, and the circular arc annular body comprises: the 7-shaped structure is fixed on the upper part of one parallel plate, the two parallel plates are provided with a fixed hole and a rotating hole which are vertical to the parallel plates, the circular arc annular main body part is sleeved on the connecting pipe and fixed through a bolt penetrating through the fixed hole, and the side hole is positioned between the two parallel plates; the 7-shaped structure is provided with a horizontal part and a vertical part, the horizontal part is provided with a brake wire hole, and the vertical part is fixed on the parallel plates; the rotating piece is of a bending structure consisting of a connecting piece with a first ball head sleeve and a connecting plate provided with a connecting hole, the bending positions of the two connecting plates are provided with rotating holes, the rotating piece is rotationally fixed between the two parallel plates through bolts penetrating through the rotating holes and the rotating holes, one end of the first ball head sleeve penetrates through the side hole and is positioned in the connecting pipe, the connecting hole is connected with a brake cable penetrating through a brake cable hole of the horizontal part, and a reset spring is arranged between the connecting hole and the horizontal part; the ejector rod is arranged in the connecting pipe and is in abutting joint with the first ball head sleeve of the rotating part, ball heads matched with the first ball head sleeve spherical surface are arranged at two ends of the ejector rod, the ball head at the upper end of the ejector rod is matched with the first ball head sleeve spherical surface of the rotating part, the ball head at the upper end of the ejector rod is in abutting joint with the brake pad, the brake pad is composed of two parallel S plates connected through a connecting plate, a rotating hole is formed in one end of the connecting plate, a second ball head sleeve and a first spring fixing part are arranged on the upper portion of the connecting plate, the brake pad is fixed on the wheel support in a rotating mode through a bolt penetrating through the rotating hole, the ball head at the lower end of the ejector rod is matched with the second ball head sleeve spherical surface of the brake pad, a second spring fixing part is arranged on the wheel support, and a reset spring is connected with the.
Preferably, the ejector pin is by the telescopic structure that lower part body of rod and upper portion body of rod are constituteed, the lower part body of rod is equipped with the external screw thread, the upper portion body of rod is equipped with the internal thread, the lower part body of rod with upper portion body of rod threaded connection, its junction is equipped with the bolt that is used for locking.
Compared with the prior art, the beneficial effects of the utility model reside in that:
1. the utility model has simple structure, convenient and flexible brake control, and eliminates the potential safety hazard caused by unsafe manual foot brake and the like;
2. the utility model adds the brake handle, the brake cable and the brake device on the basis of not changing the original structure, adopts the lever principle to brake, saves labor and is safe;
3. the utility model controls the brake handle to pull the brake cable, so that the rotating piece rotates, the rotating piece presses the ejector rod, the ejector rod transmits force to the brake pad, and the brake pad rotates to contact with the universal wheel;
4. the utility model discloses the universal wheel can also rotate behind the brake, avoids the universal wheel to embrace the lock.
Drawings
The accompanying drawings, which are incorporated in and constitute a part of this application, are included to provide a further understanding of the invention, and are incorporated in and constitute a part of this specification. In the drawings:
FIG. 1 is a schematic structural view of the present invention mounted on a wheelchair;
FIG. 2 is a schematic structural view of the brake apparatus of the present invention;
fig. 3 is an explosion diagram of the brake device of the present invention.
Detailed Description
It should be noted that the embodiments and features of the embodiments in the present application may be combined with each other without conflict. The present invention will be described in detail below with reference to the accompanying drawings in conjunction with embodiments.
In order to make the technical solutions better understood by those skilled in the art, the technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the drawings in the embodiments of the present application, and it is obvious that the described embodiments are only partial embodiments of the present application, but not all embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present application.
Example 1
As shown in fig. 1-3, a universal wheel hand brake comprises a brake handle 1, a brake cable 2 and a brake device, wherein the brake handle 1 is arranged below an armrest 3 of a wheelchair, the brake device is fixed on a universal wheel 4 of the wheelchair, and the brake cable 2 is connected with the brake handle 1 and the brake device;
the lower ends of the supporting legs of the wheelchair are connected with the upper ends of connecting pipes 5 of the wheelchair, the lower ends of the connecting pipes 5 of the wheelchair are rotated to connect wheel brackets 6, and side holes 7 are formed in one side of each connecting pipe 5;
the brake device comprises a mandril 8, a brake pad 9, a pipe clamp 10 and a rotating part 11, wherein the pipe clamp 10 is sleeved on a connecting pipe 5, the pipe clamp 10 is composed of a circular arc-shaped ring body with an opening and made of a sheet material and a 7-shaped structure, and the circular arc-shaped ring body comprises: the '7' -shaped structure is fixed on the upper part of one of the parallel plates, a fixing hole and a rotating hole which are vertical to the parallel plates are formed in the two parallel plates, the circular arc-shaped annular main body part is sleeved on the connecting pipe 5 and fixed through a bolt penetrating through the fixing hole, and the side hole 7 is positioned between the two parallel plates; the 7-shaped structure is provided with a horizontal part and a vertical part, the horizontal part is provided with a brake wire hole, and the vertical part is fixed on the parallel plates; the rotating part 11 is a bending structure consisting of a connecting sheet with a first ball head sleeve and a connecting plate provided with a connecting hole, the bending positions of the two connecting plates are provided with rotating holes, the rotating part 11 is rotationally fixed between the two parallel plates through bolts penetrating through the rotating holes and the rotating holes, one end of the first ball head sleeve penetrates through the side hole 7 and is positioned in the connecting pipe 5, the connecting hole is connected with the brake wire 2 penetrating through the brake wire hole of the horizontal part, and a reset spring is arranged between the connecting hole and the horizontal part; the top rod 8 is arranged in the connecting pipe 5 and is connected with the first ball head sleeve of the rotating part 11, the two ends of the top rod 8 are both provided with a ball head matched with the first ball head sleeve spherical surface, the ball head at the upper end of the top rod 8 is matched with the first ball head sleeve spherical surface of the rotating part 11, the ball head at the upper end of the ejector rod 8 is connected with the brake block 9 in an abutting mode, the brake block 9 is composed of two parallel S plates connected through a connecting plate, a rotary hole is arranged at one end of the S plate, which is used for fixing the connecting sheet, a second ball head sleeve and a first spring fixing part are arranged at the upper part of the connecting sheet, the brake block 9 is rotationally fixed on the wheel support 6 through a bolt penetrating through the rotating hole, a ball head at the lower end of the ejector rod 8 is matched with a second ball head sleeve spherical surface of the brake block 9, a second spring fixing part is arranged on the wheel support 6, and a return spring is connected with the first spring fixing part and the second spring fixing part.
The ejector rod 8 is of a telescopic structure consisting of a lower rod body and an upper rod body, the lower rod body is provided with external threads, the upper rod body is provided with internal threads, the lower rod body is in threaded connection with the upper rod body, and a bolt for locking is arranged at the joint of the lower rod body and the upper rod body.
Example 2
The connecting mode of the ejector rod 8 and the rotating part 11 in the brake device is improved on the basis of the embodiment 1, and the ejector rod 8 and the rotating part 11 can be connected in a hinged mode, so that the cost is reduced, and the requirement of mass production is met.
The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention, and various modifications and changes may be made by those skilled in the art. Any modification, equivalent replacement, improvement, component separation or combination made within the spirit and principle of the present invention should be included in the protection scope of the present invention.
Claims (2)
1. A universal wheel hand brake is characterized by comprising a brake handle, a brake wire and a brake device, wherein the brake handle is arranged below the armrest of a wheelchair, the brake device is fixed on a universal wheel of the wheelchair, and the brake wire is connected with the brake handle and the brake device;
the lower ends of the supporting legs of the wheelchair are connected with the upper ends of connecting pipes of the wheelchair, the lower ends of the connecting pipes of the wheelchair are rotatably connected with a wheel bracket, and side holes are formed in one sides of the connecting pipes;
the brake device comprises a mandril, a brake pad, a pipe clamp and a rotating part, wherein the pipe clamp is sleeved on a connecting pipe, the pipe clamp is composed of a circular arc annular body which is made of a sheet material and provided with an opening and a 7-shaped structure, and the circular arc annular body comprises: the 7-shaped structure is fixed on the upper part of one parallel plate, the two parallel plates are provided with a fixed hole and a rotating hole which are vertical to the parallel plates, the circular arc annular main body part is sleeved on the connecting pipe and fixed through a bolt penetrating through the fixed hole, and the side hole is positioned between the two parallel plates; the 7-shaped structure is provided with a horizontal part and a vertical part, the horizontal part is provided with a brake wire hole, and the vertical part is fixed on the parallel plates; the rotating piece is of a bending structure consisting of a connecting piece with a first ball head sleeve and a connecting plate provided with a connecting hole, the bending positions of the two connecting plates are provided with rotating holes, the rotating piece is rotationally fixed between the two parallel plates through bolts penetrating through the rotating holes and the rotating holes, one end of the first ball head sleeve penetrates through the side hole and is positioned in the connecting pipe, the connecting hole is connected with a brake cable penetrating through a brake cable hole of the horizontal part, and a reset spring is arranged between the connecting hole and the horizontal part; the ejector rod is arranged in the connecting pipe and is in abutting joint with the first ball head sleeve of the rotating part, ball heads matched with the first ball head sleeve spherical surface are arranged at two ends of the ejector rod, the ball head at the upper end of the ejector rod is matched with the first ball head sleeve spherical surface of the rotating part, the ball head at the upper end of the ejector rod is in abutting joint with the brake pad, the brake pad is composed of two parallel S plates connected through a connecting plate, a rotating hole is formed in one end of the connecting plate, a second ball head sleeve and a first spring fixing part are arranged on the upper portion of the connecting plate, the brake pad is fixed on the wheel support in a rotating mode through a bolt penetrating through the rotating hole, the ball head at the lower end of the ejector rod is matched with the second ball head sleeve spherical surface of the brake pad, a second spring fixing part is arranged on the wheel support, and a reset spring is connected with the.
2. The universal wheel hand brake of claim 1, wherein the push rod has a telescopic structure consisting of a lower rod body and an upper rod body, the lower rod body is provided with an external thread, the upper rod body is provided with an internal thread, the lower rod body is in threaded connection with the upper rod body, and a bolt for locking is arranged at the joint of the lower rod body and the upper rod body.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920965742.6U CN210408817U (en) | 2019-06-25 | 2019-06-25 | Universal wheel hand brake |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920965742.6U CN210408817U (en) | 2019-06-25 | 2019-06-25 | Universal wheel hand brake |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN210408817U true CN210408817U (en) | 2020-04-28 |
Family
ID=70377022
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201920965742.6U Expired - Fee Related CN210408817U (en) | 2019-06-25 | 2019-06-25 | Universal wheel hand brake |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN210408817U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112120576A (en) * | 2020-09-29 | 2020-12-25 | 白直潼 | Endowment chair convenient to use |
-
2019
- 2019-06-25 CN CN201920965742.6U patent/CN210408817U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112120576A (en) * | 2020-09-29 | 2020-12-25 | 白直潼 | Endowment chair convenient to use |
| CN112120576B (en) * | 2020-09-29 | 2022-04-22 | 北京凯威家具有限公司 | Endowment chair convenient to use |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20200428 |