CN201090567Y - Telescoping device with eccentric center locking mehcanism - Google Patents
Telescoping device with eccentric center locking mehcanism Download PDFInfo
- Publication number
- CN201090567Y CN201090567Y CNU2007200738001U CN200720073800U CN201090567Y CN 201090567 Y CN201090567 Y CN 201090567Y CN U2007200738001 U CNU2007200738001 U CN U2007200738001U CN 200720073800 U CN200720073800 U CN 200720073800U CN 201090567 Y CN201090567 Y CN 201090567Y
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- CN
- China
- Prior art keywords
- eccentric
- shaft
- diameter
- outer tube
- lock mechanism
- 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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Abstract
Disclosed is an expansion device with an eccentric lock mechanism, comprising an outer tube, an inner tube extending into the outer tube and moving along the inner wall of the outer tube, and an eccentric lock mechanism. The eccentric lock mechanism includes an eccentric shaft and an eccentric sleeve embedded in the eccentric shaft; the inner end of the eccentric shaft is connected to the front end of the inner tube extending into the outer tube; the eccentric shaft can move and rotate along with the inner tube; the eccentric sleeve is moveably embedded at the outer end of the eccentric shaft and is tightly contacted connection with the outer tube to realize locking. The telescopic device of the utility model is simple in structure, light in weight and portable for carrying. Both ends of the expansion device can be connected with apparatuses for various purposes, thereby the expansion devices for various purposes are formed.
Description
Technical field
The utility model relates to a kind of length instrument, relates in particular to a kind of expansion device with eccentric lock mechanism.
Background technique
Expansion device changes length by relatively moving between the inner and outer pipes, can elongate as required or shorten, and both is convenient for carrying, and has alleviated weight again, is widely used in all lengths instrument.
The model utility content
The purpose of this utility model is exactly in order to provide a kind of expansion device with eccentric lock mechanism.
In order to achieve the above object, the utility model has adopted following technological scheme: a kind of expansion device with eccentric lock mechanism, comprise outer tube and stretch in the outer tube the interior pipe that can move along outer tube wall, also comprise an eccentric lock mechanism, this eccentric lock mechanism comprises an eccentric shaft and an eccentric bushing that is nested on this eccentric shaft, the inner of eccentric shaft is connected the front end that stretches into the interior pipe in the outer tube, eccentric shaft can move and rotate with interior pipe, and the eccentric bushing activity is nested in the outer end of eccentric shaft and can closely contacts to link to each other with outer tube and forms locking.
Described eccentric shaft is made up of interior axle, eccentric block set, outer shaft and eccentric upper shield that order fuses, in axle diameter and the internal diameter of interior pipe is suitable and be fixedly linked with interior pipe, the diameter of eccentric block set greater than the diameter of interior axle and with concentric linking to each other of interior axle, the diameter of outer shaft links to each other less than the diameter of interior axle and with eccentric block set is eccentric, the slightly larger in diameter of eccentric upper shield links to each other in the diameter of outer shaft and with outer shaft is concentric, and described eccentric bushing activity is nested on the outer shaft and by eccentric block set and eccentric upper shield is located.
Described eccentric bushing is the elastic opening structural member, and the diameter of the eccentric block set on its external diameter and the eccentric shaft is suitable, and the diameter of its trepanning and the diameter of the outer shaft on the eccentric shaft are suitable, and its opening is arranged on a thicker side of the collar.
The outer wall of described eccentric bushing is provided with the gear shape anti-skid structure.
Also comprise an anti-sliding sleeve, this anti-skidding cover is connected the mouth of pipe of outer tube, and the nose end bread of outer tube is firmly formed a fore shaft, and this fore shaft can prevent that interior pipe and the eccentric lock mechanism integral body that is connected thereof from skidding off from outer tube.
The expansion device of band eccentric lock mechanism of the present utility model is simple in structure, and is in light weight, is easy to carry.The two ends of expansion device can connect the device of multiple different purposes, form the expansion bend of multiple different purposes.
Description of drawings
Fig. 1 is the structural representation of the expansion device of the utility model band eccentric lock mechanism;
Fig. 2 is the perspective view of the eccentric shaft in the utility model;
Fig. 3 is the side-looking structural representation of eccentric shaft shown in Figure 2;
Fig. 4 is the perspective view of the eccentric bushing in the utility model;
Fig. 5 is the side-looking structural representation of eccentric bushing shown in Figure 4;
Fig. 6 is the structural representation that the eccentric lock mechanism in the utility model is in released state;
Fig. 7 is the structural representation that the eccentric lock mechanism in the utility model is in the lock state.
Embodiment
Referring to Fig. 1, the expansion device of band eccentric lock mechanism of the present utility model comprises outer tube 1, interior pipe 2, eccentric lock mechanism 3 and anti-sliding sleeve 4.Interior pipe 2 stretches in the outer tube 1 and can move along outer tube wall, the external diameter of interior pipe 2 is slightly less than the internal diameter of outer tube 1, eccentric lock mechanism 3 is made up of eccentric shaft 31 and the eccentric bushing 32 that is nested on this eccentric shaft, the inner of eccentric shaft 31 is connected the front end that stretches into the interior pipe 2 in the outer tube 1, eccentric shaft 31 can move and rotate with interior pipe, and eccentric bushing 32 activities are nested in the outer end of eccentric shaft and can closely contact to link to each other with outer tube and form locking.Anti-sliding sleeve 4 is connected the mouth of pipe of outer tube 1, and the nose end bread of outer tube is firmly formed a fore shaft, can prevent that interior pipe 2 and eccentric lock mechanism 3 integral body that connected thereof from skidding off from outer tube.
Referring to Fig. 2, Fig. 3, the interior axle 311 that eccentric shaft 31 in the utility model is fused by order, eccentric block set 312, outer shaft 313 and eccentric upper shield 314 are formed, in the internal diameter of axle 311 diameter and interior pipe 2 suitable and be fixedly linked with interior pipe 2, present embodiment is to connect (cooperating referring to Fig. 1) by bearing pin 5, the diameter of eccentric block set 312 greater than the diameter of interior axle 311 and with concentric linking to each other of interior axle, the diameter of outer shaft 313 links to each other less than the diameter of interior axle 311 and with eccentric block set 312 off-centre, and the slightly larger in diameter of eccentric upper shield 314 links to each other in the diameter of outer shaft 313 and with outer shaft is concentric.Eccentric bushing 32 activities are nested on the outer shaft 313 and by eccentric block set 312 and eccentric upper shield 314 and are located.
Referring to Fig. 4, Fig. 5, eccentric bushing 32 in the utility model is the elastic opening structural member, the diameter of the eccentric block set 312 on its external diameter and the eccentric shaft is suitable, and the diameter of its trepanning 321 and the diameter of the outer shaft on the eccentric shaft 313 are suitable, and its opening 322 is arranged on a thicker side of the collar.Outer wall at eccentric bushing is provided with gear shape anti-skid structure 323.
The working principle of the expansion device of the utility model band eccentric lock mechanism can be described as follows in conjunction with Fig. 6, Fig. 7:
During release, the degree of eccentricity complementation of eccentric shaft 31 and eccentric bushing 32, form assembled state as shown in Figure 6, be eccentric bushing 32 just integral seat drop on the eccentric block set 312 of eccentric shaft, eccentric bushing 32, eccentric block set 312 and interior axle 311 threes form concentric combination, the eccentric lock mechanism 3 of pipe 2 and connection thereof can move freely in outer tube 1 together in this moment, stretches.
Flexible when needing position and lock when finishing, then by pipe 2 in the rotation, drive eccentric shaft 31 by interior pipe 2 and rotate an angle, form assembled state as shown in Figure 7, to be eccentric bushing 32 promoted by the eccentric outer shaft on the eccentric shaft 31 313 and protrude to a side, one side of this protrusion surpasses the border of eccentric block set 312, make after 312 combinations of eccentric bushing 32 and eccentric block set size greater than wherein either party, link to each other with tight conflict of inwall of outer tube, thereby pipe 2 forms locking with respect to outer tube 1 in making, and can not move easily.
Claims (5)
1. expansion device with eccentric lock mechanism, comprise outer tube and stretch in the outer tube the interior pipe that can move along outer tube wall, it is characterized in that: also comprise an eccentric lock mechanism, this eccentric lock mechanism comprises an eccentric shaft and an eccentric bushing that is nested on this eccentric shaft, the inner of eccentric shaft is connected the front end that stretches into the interior pipe in the outer tube, eccentric shaft can move and rotate with interior pipe, and the eccentric bushing activity is nested in the outer end of eccentric shaft and can closely contacts to link to each other with outer tube and forms locking.
2. the expansion device of band eccentric lock mechanism according to claim 1, it is characterized in that: the interior axle that described eccentric shaft is fused by order, eccentric block set, outer shaft and eccentric upper shield are formed, in axle diameter and the internal diameter of interior pipe is suitable and be fixedly linked with interior pipe, the diameter of eccentric block set greater than the diameter of interior axle and with concentric linking to each other of interior axle, the diameter of outer shaft links to each other less than the diameter of interior axle and with eccentric block set is eccentric, the slightly larger in diameter of eccentric upper shield links to each other in the diameter of outer shaft and with outer shaft is concentric, and described eccentric bushing activity is nested on the outer shaft and by eccentric block set and eccentric upper shield is located.
3. the expansion device of band eccentric lock mechanism according to claim 1, it is characterized in that: described eccentric bushing is the elastic opening structural member, the diameter of the eccentric block set on its external diameter and the eccentric shaft is suitable, the diameter of its trepanning and the diameter of the outer shaft on the eccentric shaft are suitable, and its opening is arranged on a thicker side of the collar.
4. the expansion device of band eccentric lock mechanism according to claim 1 is characterized in that: the outer wall of described eccentric bushing is provided with the gear shape anti-skid structure.
5. the expansion device of band eccentric lock mechanism according to claim 1, it is characterized in that: also comprise an anti-sliding sleeve, this anti-skidding cover is connected the mouth of pipe of outer tube, and the nose end bread of outer tube firmly formed a fore shaft, pipe and the eccentric lock mechanism integral body that connected thereof skidded off from outer tube in this fore shaft can prevent.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2007200738001U CN201090567Y (en) | 2007-08-17 | 2007-08-17 | Telescoping device with eccentric center locking mehcanism |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2007200738001U CN201090567Y (en) | 2007-08-17 | 2007-08-17 | Telescoping device with eccentric center locking mehcanism |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201090567Y true CN201090567Y (en) | 2008-07-23 |
Family
ID=39862328
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNU2007200738001U Expired - Fee Related CN201090567Y (en) | 2007-08-17 | 2007-08-17 | Telescoping device with eccentric center locking mehcanism |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201090567Y (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107780697A (en) * | 2017-12-06 | 2018-03-09 | 徐美新 | Telescopic flagpole |
| CN110259781A (en) * | 2019-06-21 | 2019-09-20 | 东莞市闻誉实业有限公司 | Connector and supporting element |
-
2007
- 2007-08-17 CN CNU2007200738001U patent/CN201090567Y/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107780697A (en) * | 2017-12-06 | 2018-03-09 | 徐美新 | Telescopic flagpole |
| CN110259781A (en) * | 2019-06-21 | 2019-09-20 | 东莞市闻誉实业有限公司 | Connector and supporting element |
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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: 20080723 Termination date: 20100817 |