CN201836344U - Fixing structure for movable pin operating lever - Google Patents
Fixing structure for movable pin operating lever Download PDFInfo
- Publication number
- CN201836344U CN201836344U CN2010205978060U CN201020597806U CN201836344U CN 201836344 U CN201836344 U CN 201836344U CN 2010205978060 U CN2010205978060 U CN 2010205978060U CN 201020597806 U CN201020597806 U CN 201020597806U CN 201836344 U CN201836344 U CN 201836344U
- Authority
- CN
- China
- Prior art keywords
- pin operating
- operating stem
- loose pin
- reduction case
- operating lever
- 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.)
- Expired - Fee Related
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- Chairs For Special Purposes, Such As Reclining Chairs (AREA)
- Mechanical Control Devices (AREA)
Abstract
The utility model discloses a fixing structure for a movable pin operating lever, which comprises a reduction case and the movable pin operating lever penetratingly mounted in the reduction case. A mounting hole is disposed in the reduction case, the movable pin operating lever is penetratingly mounted in the mounting hole, and an elastic device which changes friction force of the movable pin operating lever during rotation is disposed in the mounting hole. Sliding friction between the movable pin operating lever and the reduction case is changed into rolling friction so as to reduce friction resistance, the rotation position of the movable pin operating lever is locked effectively, and accordingly an electric wheelchair can be thoroughly switched between an electric state and a manual state assuredly.
Description
Technical field
The utility model relates to the constituent elements of electric wheelchair retarder, particularly a kind of fixed structure of loose pin operating stem.
Background technique
Shown in Figure 1, in the electric wheelchair retarder, make being connected or breaking away between the driving mechanism of retarder inside and the output shaft by rotating loose pin operating stem 02, realize the conversion of wheelchair between motoring condition and manual state, because the overall dimensions of electric wheelchair retarder is less, the size of loose pin operating stem is littler, generally directly be installed on the reduction case 01, surface friction drag is bigger like this, matching relationship is had relatively high expectations, and need to lubricate preferably, can't effectively lock the pivotal position of loose pin operating stem in addition, it is not thorough to cause wheelchair to switch between motoring condition or manual state.
The model utility content
Problem to be solved in the utility model just provides a kind of loose pin operating stem fixed structure, and is simple in structure, easy for installation, and the sliding friction between loose pin operating stem and the reduction case is become rolling friction, and the resistance of reducing friction is optimized matching relationship.
In order to solve the problems of the technologies described above, the utility model adopts following technological scheme: a kind of loose pin operating stem fixed structure, comprise reduction case and the loose pin operating stem that is installed in the reduction case, it is characterized in that: in reduction case, be provided with the mounting hole that installs the loose pin operating stem, in mounting hole, be provided with the elastic device of suffered frictional force when changing the rotation of loose pin operating stem.
Further, described elastic device comprises elastic component and the ball that is located in the reduction case, ball is located at the head of elastic component and the effect by elastic component is against on the bar wall of loose pin operating stem, reduction case is provided with the adjustment hole that installs elastic component and ball, is provided with the regulation structure of regulating the elastic component decrement in the rear end of adjustment hole.
Further, described regulation structure is an adjusting screw, and the rear end of adjustment hole is provided with thread section and is threaded with adjusting screw.
Further, described elastic component is a spring.
Further, the bar wall of described loose pin operating stem is provided with the annular groove corresponding with the adjustment hole position, and ball is embedded in the annular groove.
Further, described annular groove and ball inscribe.
Further, the cross section of described annular groove is a circular arc.
After adopting technique scheme, the utlity model has following advantage: the sliding friction between loose pin operating stem and the reduction case is become rolling friction, the resistance of reducing friction, and regulate ball by adjusting screw and act on the frictional force that pressure on the loose pin operating stem bar wall changes ball and loose pin operating stem, and can effectively lock the pivotal position of loose pin operating stem, guarantee that electric wheelchair switches thoroughly between electronic or manual state.
Description of drawings
The utility model is described in further detail below in conjunction with accompanying drawing:
Fig. 1 is existing a kind of electric wheelchair reducer structure schematic representation;
Fig. 2 is that a kind of embodiment of the utility model is applied in the structural representation in the electric wheelchair retarder;
Fig. 3 is the utility model embodiment's a structural representation.
Embodiment
A kind of embodiment's of the utility model structural representation shown in Fig. 2 to 3, a kind of loose pin operating stem fixed structure, comprise reduction case 1 and the loose pin operating stem 2 that is installed in the reduction case, in reduction case, be provided with the mounting hole 11 that installs the loose pin operating stem, in mounting hole, being provided with the elastic device of suffered frictional force when changing the rotation of loose pin operating stem. described elastic device comprises elastic component 3 and the ball 4 that is located in the reduction case, ball is located at the head of elastic component and the effect by elastic component is against on the bar wall of loose pin operating stem, reduction case is provided with the adjustment hole 12 that installs elastic component and ball, is provided with the regulation structure of regulating the elastic component decrement in the rear end of adjustment hole.Described regulation structure is an adjusting screw 5, and the rear end of adjustment hole is provided with thread section 121 and is threaded with adjusting screw.The bar wall of described loose pin operating stem is provided with the annular groove corresponding with the adjustment hole position 21, and ball is embedded in the annular groove.
In the foregoing description, described elastic component is a spring.Described annular groove and ball inscribe, the cross section of annular groove are circular arc.
The utility model becomes rolling friction with the sliding friction between loose pin operating stem and the reduction case, the resistance of reducing friction, and regulate ball by adjusting screw and act on the frictional force that pressure on the loose pin operating stem bar wall changes ball and loose pin operating stem, and can effectively lock the pivotal position of loose pin operating stem, guarantee that electric wheelchair switches thoroughly between electronic or manual state.
Except that above preferred embodiment, the utility model also has other mode of execution, those skilled in the art can make various changes and distortion according to the utility model, only otherwise break away from spirit of the present utility model, all should belong to the defined scope of the utility model claims.
Claims (7)
1. loose pin operating stem fixed structure, comprise reduction case (1) and be installed on loose pin operating stem (2) in the reduction case, it is characterized in that: in reduction case, be provided with the mounting hole (11) that installs the loose pin operating stem, in mounting hole, be provided with the elastic device of suffered frictional force when changing the rotation of loose pin operating stem.
2. a kind of loose pin operating stem fixed structure according to claim 1, it is characterized in that: described elastic device comprises elastic component (3) and the ball (4) that is located in the reduction case, ball is located at the head of elastic component and the effect by elastic component is against on the bar wall of loose pin operating stem, reduction case is provided with the adjustment hole (12) that installs elastic component and ball, is provided with the regulation structure of regulating the elastic component decrement in the rear end of adjustment hole.
3. a kind of loose pin operating stem fixed structure according to claim 2 is characterized in that: described regulation structure is adjusting screw (5), and the rear end of adjustment hole is provided with thread section (121) and is threaded with adjusting screw.
4. according to claim 2 or 3 described a kind of loose pin operating stem fixed structures, it is characterized in that: described elastic component is a spring.
5. a kind of loose pin operating stem fixed structure according to claim 2 is characterized in that: the bar wall of described loose pin operating stem is provided with the annular groove corresponding with the adjustment hole position (21), and ball is embedded in the annular groove.
6. a kind of loose pin operating stem fixed structure according to claim 5 is characterized in that: described annular groove and ball inscribe.
7. a kind of loose pin operating stem fixed structure according to claim 6, it is characterized in that: the cross section of described annular groove is a circular arc.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010205978060U CN201836344U (en) | 2010-11-02 | 2010-11-02 | Fixing structure for movable pin operating lever |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010205978060U CN201836344U (en) | 2010-11-02 | 2010-11-02 | Fixing structure for movable pin operating lever |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201836344U true CN201836344U (en) | 2011-05-18 |
Family
ID=44006446
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2010205978060U Expired - Fee Related CN201836344U (en) | 2010-11-02 | 2010-11-02 | Fixing structure for movable pin operating lever |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201836344U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102094961A (en) * | 2010-11-02 | 2011-06-15 | 许晓华 | Movable pin operating rod fixed structure |
| CN103792707A (en) * | 2014-02-13 | 2014-05-14 | 北京京东方显示技术有限公司 | Supporting machine table |
| CN109475462A (en) * | 2017-05-25 | 2019-03-15 | 美国仿生公司 | Adjustable trunk and hip sub-assembly for ectoskeleton equipment |
-
2010
- 2010-11-02 CN CN2010205978060U patent/CN201836344U/en not_active Expired - Fee Related
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102094961A (en) * | 2010-11-02 | 2011-06-15 | 许晓华 | Movable pin operating rod fixed structure |
| CN103792707A (en) * | 2014-02-13 | 2014-05-14 | 北京京东方显示技术有限公司 | Supporting machine table |
| CN103792707B (en) * | 2014-02-13 | 2016-04-13 | 北京京东方显示技术有限公司 | Support board |
| US9411233B2 (en) | 2014-02-13 | 2016-08-09 | Boe Technology Group Co., Ltd. | Support stage |
| CN109475462A (en) * | 2017-05-25 | 2019-03-15 | 美国仿生公司 | Adjustable trunk and hip sub-assembly for ectoskeleton equipment |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20110518 Termination date: 20111102 |