CN102094961A - Movable pin operating rod fixed structure - Google Patents
Movable pin operating rod fixed structure Download PDFInfo
- Publication number
- CN102094961A CN102094961A CN2010105363446A CN201010536344A CN102094961A CN 102094961 A CN102094961 A CN 102094961A CN 2010105363446 A CN2010105363446 A CN 2010105363446A CN 201010536344 A CN201010536344 A CN 201010536344A CN 102094961 A CN102094961 A CN 102094961A
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- CN
- China
- Prior art keywords
- pin operating
- operating stem
- loose pin
- reduction case
- fixed structure
- 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.)
- Pending
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- Chairs For Special Purposes, Such As Reclining Chairs (AREA)
Abstract
The invention discloses a movable pin operating rod fixed structure which comprises a reduction case, and a movable pin operating rod which penetrates through the reduction case, wherein the reduction case is provided with a mounting hole which penetrates through the movable pin operating rod; and the mounting hole is provided with an elastic device which changes the friction force applied when the movable pin operating rod rotates. According to the invention, the sliding friction between the movable pin operating rod and the reduction case is changed into rolling friction, the friction resistance is reduced, the rotary position of the movable pin operating rod can be locked effectively, and the thorough switching between the electric motion and manual motion of an electric motive wheel chair can be ensured.
Description
Technical field
The present invention 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.
Summary of the invention
Problem to be solved by this invention 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 present invention 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 present invention 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 invention will be further described below in conjunction with accompanying drawing:
Fig. 1 is existing a kind of electric wheelchair reducer structure schematic representation;
Fig. 2 is applied in structural representation in the electric wheelchair retarder for an embodiment of the present invention;
Fig. 3 is the structural representation of the embodiment of the invention.
Embodiment
The structural representation of an embodiment of the present invention 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 present invention 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 present invention also has other mode of execution, and those skilled in the art can make various changes and distortion according to the present invention, only otherwise break away from spirit of the present invention, all should belong to the defined scope of claims of the present invention.
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 |
|---|---|---|---|
| CN2010105363446A CN102094961A (en) | 2010-11-02 | 2010-11-02 | Movable pin operating rod fixed structure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010105363446A CN102094961A (en) | 2010-11-02 | 2010-11-02 | Movable pin operating rod fixed structure |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN102094961A true CN102094961A (en) | 2011-06-15 |
Family
ID=44128167
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2010105363446A Pending CN102094961A (en) | 2010-11-02 | 2010-11-02 | Movable pin operating rod fixed structure |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN102094961A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103792707A (en) * | 2014-02-13 | 2014-05-14 | 北京京东方显示技术有限公司 | Supporting machine table |
| CN103911754A (en) * | 2014-04-22 | 2014-07-09 | 湖州申祥丝织有限责任公司 | Shuttle of spinner |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN201171138Y (en) * | 2008-01-07 | 2008-12-24 | 殷宏涛 | Rapid wiring calibrator |
| CN101586617A (en) * | 2008-05-19 | 2009-11-25 | 瓦房店第一轧机轴承制造有限公司 | Cylindrical roller bearing without inner ring for rolling mill |
| CN201836344U (en) * | 2010-11-02 | 2011-05-18 | 许晓华 | Fixing structure for movable pin operating lever |
-
2010
- 2010-11-02 CN CN2010105363446A patent/CN102094961A/en active Pending
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN201171138Y (en) * | 2008-01-07 | 2008-12-24 | 殷宏涛 | Rapid wiring calibrator |
| CN101586617A (en) * | 2008-05-19 | 2009-11-25 | 瓦房店第一轧机轴承制造有限公司 | Cylindrical roller bearing without inner ring for rolling mill |
| CN201836344U (en) * | 2010-11-02 | 2011-05-18 | 许晓华 | Fixing structure for movable pin operating lever |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| 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 |
| CN103911754A (en) * | 2014-04-22 | 2014-07-09 | 湖州申祥丝织有限责任公司 | Shuttle of spinner |
| CN103911754B (en) * | 2014-04-22 | 2015-12-02 | 江苏斯利浦睡眠产业科技有限公司 | A kind of shuttle of weaving loom |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C02 | Deemed withdrawal of patent application after publication (patent law 2001) | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20110615 |