CN2558804Y - Telescopic road locking device - Google Patents
Telescopic road locking device Download PDFInfo
- Publication number
- CN2558804Y CN2558804Y CN 02268373 CN02268373U CN2558804Y CN 2558804 Y CN2558804 Y CN 2558804Y CN 02268373 CN02268373 CN 02268373 CN 02268373 U CN02268373 U CN 02268373U CN 2558804 Y CN2558804 Y CN 2558804Y
- Authority
- CN
- China
- Prior art keywords
- locking device
- biasing post
- external
- involute
- eccentric column
- 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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- Mutual Connection Of Rods And Tubes (AREA)
Abstract
The utility model discloses a locking device of a telescopic bar, which comprises a fixed hub which can be sleeved internally inside an internal tube as well as connected with the internal tube; besides, a blocking rim with outer diameter smaller than inner diameter of an external tube is arranged outside the fixed hub, and an eccentric column is arranged outside the blocking rim. An external end of the eccentric column is provided with an external blocking rim of which the outer diameter is slightly smaller than the inner diameter of the external tube; an expanded coupling sleeve with a 'C'-shaped cross section is sleeved on the eccentric column, a cross section of the eccentric column shows involute shape, angular distance between a starting point and an end point of the involute is 360 degrees, and a straight segment is connected between the starting point and the end point. The utility model has ingeniously conceived, reasonable structure, firm locking. In this way, the adaptability of the telescopic bar is greatly enhanced, thus expanding the usage range of the telescopic bar and having the popularizing value.
Description
Technical field
The utility model relates to a kind of flexible rod, especially relates to a kind of flexible rod locking device.
Background technique
Flexible rod has widely in daily life to be used, especially the body of rod on various tool, the various bodies of rod that resident's life staying idle at home is used, this body of rod inner and outer pipes presents flexible state, its entire length can be regulated by the degree of depth of pipe insertion outer tube in adjusting, and locks by locking device.The principle of most of locking device all is to utilize eccentric center principle, and pipe inserted an end of outer tube in this eccentric was fixed in, and was with movable eccentric bushing on the biasing post, and inner and outer pipes is rotated relatively, movable eccentric bushing extruding outer tube wall, thus realize locking.But this structure locking is insecure, is easy to fluff, and can not reach satisfied effect.
Summary of the invention
The purpose of this utility model is to provide a kind of firm flexible rod locking device of locking.
The purpose of this utility model is to realize like this, the flexible rod locking device comprises can be socketed in the fixed cover that interior pipe is interior and fixedly connected with interior pipe, fixed cover peripheral hardware one external diameter is slightly less than the stop edge of outer tube diameter, stop edge is provided with a biasing post outward, the outer end of biasing post also is provided with the outer stop edge that an external diameter is slightly less than outer tube diameter, be with a section on the biasing post and be the swelling cover of " C " shape, the section of described biasing post is involute shape, the Origin And Destination angular distance of involute is 360 °, and Origin And Destination has straightway to link to each other.
As the improvement to above-mentioned flexible rod locking device, the inboard, two end part of " C " shape swelling cover is provided with projection.
The utility model is owing to adopt said structure, the flexible rod locking device comprises can be socketed in the fixed cover that interior pipe is interior and fixedly connected with interior pipe, fixed cover peripheral hardware one external diameter is slightly less than the stop edge of outer tube diameter, stop edge is provided with a biasing post outward, the outer end of biasing post also is provided with the outer stop edge that an external diameter is slightly less than outer tube diameter, be with a section on the biasing post and be the swelling cover of " C " shape, the section of described biasing post is involute shape, the Origin And Destination angular distance of involute is 360 °, and Origin And Destination has straightway to link to each other.The utility model is skillfully constructed, and is rational in infrastructure, and locking is firm, and the adaptability of flexible rod is enhanced widely like this, thereby has enlarged the using scope of flexible rod, the tool promotional value.
Description of drawings
Fig. 1 is the utility model embodiment's a three-dimensional exploded view.
Fig. 2 is the utility model embodiment transverse sectional view.
Embodiment
As shown in Figure 1, flexible rod locking device of the present utility model, comprise in managing in being socketed in and the fixed cover 1 of fixedlying connected with interior pipe, fixed cover peripheral hardware one external diameter is slightly less than the stop edge 2 of outer tube diameter, the stop edge 2 outer biasing posts 3 that are provided with, the outer end of biasing post 3 also is provided with the outer stop edge 4 that an external diameter is slightly less than outer tube diameter, be with a section on the biasing post 3 and be the swelling cover 5 of " C " shape, wherein biasing post 3 sections are involute shape, the Origin And Destination angular distance of involute is 360 °, Origin And Destination has straightway to link to each other, and the inboard, two end part of " C " shape swelling cover 5 is provided with projection.
As shown in Figure 2, biasing post 3 rotates counterclockwise with respect to swelling cover 5, and the opening of swelling cover 5 opens, the outer wall jam-packed outer tube wall of swelling cover 5, inner and outer pipes locking.Biasing post 3 clockwise rotates with respect to swelling cover 5, and the opening of swelling cover 5 is because the elastic force of swelling cover 5 is inwardly closed, and the outer wall of swelling cover 5 leaves outer tube wall, and inner and outer pipes unclamps.Because of the inboard, two end part of " C " shape swelling cover 5 is provided with projection, thereby can contact with outer tube wall better during 5 lockings of swelling cover, thereby make locking more firm.
Claims (2)
1. flexible rod locking device, comprise in managing in being socketed in and the fixed cover (1) of fixedlying connected with interior pipe, fixed cover peripheral hardware one external diameter is slightly less than the stop edge (2) of outer tube diameter, the outer biasing post (3) that is provided with of stop edge (2), the outer end of biasing post (3) also is provided with the outer stop edge (4) that an external diameter is slightly less than outer tube diameter, be with a section on the biasing post (3) and be the swelling cover (5) of " C " shape, it is characterized in that: the section of described biasing post (3) is involute shape, the Origin And Destination angular distance of involute is 360 °, and Origin And Destination has straightway to link to each other.
2. flexible rod locking device as claimed in claim 1 is characterized in that: the inboard, two end part of " C " shape swelling cover (5) is provided with projection.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 02268373 CN2558804Y (en) | 2002-07-16 | 2002-07-16 | Telescopic road locking device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 02268373 CN2558804Y (en) | 2002-07-16 | 2002-07-16 | Telescopic road locking device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2558804Y true CN2558804Y (en) | 2003-07-02 |
Family
ID=33733813
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 02268373 Expired - Fee Related CN2558804Y (en) | 2002-07-16 | 2002-07-16 | Telescopic road locking device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2558804Y (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102381167A (en) * | 2011-08-23 | 2012-03-21 | 迟圣弟 | Automobile protective umbrella |
| CN107780697A (en) * | 2017-12-06 | 2018-03-09 | 徐美新 | Telescopic flagpole |
| CN110769901A (en) * | 2017-04-01 | 2020-02-07 | 爱思堡亚洲有限公司 | Terminal assembly for dance movable rod |
-
2002
- 2002-07-16 CN CN 02268373 patent/CN2558804Y/en not_active Expired - Fee Related
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102381167A (en) * | 2011-08-23 | 2012-03-21 | 迟圣弟 | Automobile protective umbrella |
| CN102381167B (en) * | 2011-08-23 | 2013-11-13 | 迟圣弟 | Automobile protective umbrella |
| CN110769901A (en) * | 2017-04-01 | 2020-02-07 | 爱思堡亚洲有限公司 | Terminal assembly for dance movable rod |
| US11596849B2 (en) | 2017-04-01 | 2023-03-07 | X-Pole Asia Limited | End assembly for a dance exercise pole |
| CN107780697A (en) * | 2017-12-06 | 2018-03-09 | 徐美新 | Telescopic flagpole |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C19 | Lapse of patent right due to non-payment of the annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |