CN2405058Y - Device for positioning telescopic tube - Google Patents
Device for positioning telescopic tube Download PDFInfo
- Publication number
- CN2405058Y CN2405058Y CN 99239814 CN99239814U CN2405058Y CN 2405058 Y CN2405058 Y CN 2405058Y CN 99239814 CN99239814 CN 99239814 CN 99239814 U CN99239814 U CN 99239814U CN 2405058 Y CN2405058 Y CN 2405058Y
- Authority
- CN
- China
- Prior art keywords
- locking ring
- telescopic pipe
- collar
- positioning device
- peripheral surface
- 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 relates to a device for positioning a telescopic pipe, which comprises an outer pipe, a telescopic pipe, locking nuts, an upper sleeve ring, a locking ring and a lower sleeve ring, wherein the lower inner peripheral surface of the upper sleeve ring forms a horn shape. The peripheral surface of the locking ring forms a drum shape, and the middle section has a gap; the upper inner peripheral surface of the lower sleeve ring forms a horn shape; the upper sleeve ring, the locking ring and the lower sleeve ring are movably sheathed on the telescopic pipe positioned in the locking nut from top to bottom. When the nuts are tightened, the upper and the lower sleeve rings interact with the inner and the outer peripheral surfaces of the locking ring to make the locking ring tightly encircles the telescopic pipe to position; simultaneously, the moving friction of the existing locking ring type device for positioning a telescopic pipe in the peripheral direction is avoided, and the wear is prevented. The utility model can be provided with a plurality of locking rings when necessary.
Description
The utility model relates to a kind of telescopic pipe positioning device, particularly the positioning device used of telescopic pipe such as medical infusion aircraft or microphone boom.
Existing locking ring type telescopic pipe positioning device comprises an outer tube, its upper end inner peripheral surface is upwards horn-like, one telescopically is inserted into the telescopic pipe in this outer tube, one thread set is the lock nut of tube end outside, and telescopic pipe stretches out from this lock nut end, horn-like corresponding with outer tube upper end, it is downward horn-like that the upper end inner peripheral surface of this nut is, be set with a locking ring versatilely on the telescopic pipe between this two horn-like inner peripheral surface, its outer circumferential face is drum type, and the stage casing is jagged.During use, tighten lock nut, the drum type outer circumferential face of upper and lower horn-like inner peripheral surface and locking ring interacts, formation is to the radial pressure of locking ring, because of locking ring has breach, but just radial contraction of locking ring, hold tightly on telescopic pipe by frictional force, reach purpose the telescopic pipe location.But because in the process of tightening nuts, upper and lower horn-like inner peripheral surface moves relative to circumferential direct friction with the drum type outer circumferential face of locking ring, makes relevant part be easy to wearing and tearing, causes part to damage improperly, influence locating effect, and significantly shortened working life.
The purpose of this utility model provides reliable, the long-lived telescopic pipe positioning device in a kind of location.
A kind of telescopic pipe positioning device of the present utility model, comprise an outer tube, one telescopically is inserted into telescopic pipe and the positioning device in this outer tube, described positioning device comprises, one thread set is the lock nut of tube end outside, telescopic pipe stretches out from this lock nut end, one locking ring, its outer circumferential face is drum type, the stage casing is jagged, and described positioning device also comprises, the collar on, its down inner peripheral surface be downward horn-like, one lower collar, inner peripheral surface is upwards horn-like on it, and these rings are by the last collar, the order of locking ring and lower collar is sleeved on the telescopic pipe that is positioned at described lock nut from top to bottom versatilely.
Telescopic pipe positioning device of the present utility model has increased upper and lower two collars that have to upper and lower horn-like inner peripheral surface on the basis of existing locking ring type telescopic pipe positioning device, replaced the horn-like inner peripheral surface on outer tube and the nut.During tightening nuts, upper and lower two collars are axially close relatively, its drum type outer circumferential face to upper and lower horn-like inner peripheral surface and locking ring interacts, formation is to the radial pressure of locking ring, because of locking ring has breach, but locking ring is radial contraction just, holds tightly on telescopic pipe by frictional force, reaches the purpose to the telescopic pipe location.Because in the process of tightening nuts, do not exist between the horn-like inner peripheral surface of upper and lower sleeve pipe and the drum type outer circumferential face of locking ring relative to circumferential direct friction and move, so just thoroughly avoided part to wear and tear easily, the problem of improper damage, it is reliable to have reached the location, long-lived purpose
According to design of the present utility model, according to the load size of telescopic pipe, can also design the telescopic pipe positioning device that has a plurality of locking rings, to satisfy different needs.
Below, in conjunction with the accompanying drawings, describe most preferred embodiment of the present utility model in detail, to further specify other purposes of the present utility model, feature and advantage.Wherein:
Fig. 1 is vertical cross-sectional schematic of a kind of telescopic pipe positioning device of the present utility model.
Fig. 2 is vertical cross-sectional schematic of another kind of telescopic pipe positioning device of the present utility model.
Referring to Fig. 1, a kind of telescopic pipe positioning device of the present utility model, comprise an outer tube 100, one telescopically is inserted into telescopic pipe 200 and the positioning device in this outer tube, described positioning device comprises, one thread set is the lock nut 300 of tube end outside, telescopic pipe 200 stretches out from these lock nut 300 ends, one locking ring 400, its outer circumferential face 410 is drum type, stage casing jagged 420, the collar 500 on one, its down inner peripheral surface 510 be downward horn-like, one lower collar 600, inner peripheral surface 610 is upwards horn-like on it, and these rings are by the last collar 500, the order of locking ring 400 and lower collar 600 is sleeved on the telescopic pipe 200 that is positioned at described lock nut 300 from top to bottom versatilely.
During use, behind the height and position that regulates telescopic pipe 200, tighten lock nut 300, the last collar 500, locking ring 400 and casing running 600 push to axial, interact at their the trumpet-shaped inner peripheral surfaces 510,610 of upper and lower sleeve pipe and the outer circumferential face 410 of locking ring 400 drum types, form radial pressure, because of locking ring 400 has breach 410 to locking ring 400, locking ring is just held telescopic pipe 200 tightly, reaches the location purpose.Compare with existing locking ring type telescopic pipe positioning device, because of many upper and lower sleeve pipes 500,600, do not exist between the horn-like inner peripheral surface 510,610 of upper and lower sleeve pipe and the drum type outer circumferential face 410 of locking ring relative to circumferential direct friction and move, just thoroughly avoided part to wear and tear easily, the problem of improper damage, it is reliable to have reached the location, long-lived purpose
According to actual usage requirement, can design the telescopic pipe positioning device that has a plurality of locking rings, to obtain better locating effect.
Referring to Fig. 2, another kind of telescopic pipe positioning device of the present utility model, be on the basis of the foregoing description, increase the collar 700 in again, its upper and lower inner peripheral surface is horn-like up and down 710,720, one second locking rings 800 respectively, and its outer circumferential face is drum type, the stage casing is jagged, and is sleeved on versatilely between the locking ring 400 and lower collar 600 on the telescopic pipe 200 in described lock nut 300 by the order up and down of the middle collar 700 and second locking ring 800.Because of many locking rings, the frictional force of locking ring and telescopic pipe 200 is bigger one times than embodiment's shown in Figure 1, and locking effect is better.
In addition, can be on the basis of the foregoing description, increase the collar in one second again, its upper and lower inner peripheral surface is horn-like up and down respectively, one the 3rd locking ring, its outer circumferential face is drum type, and the stage casing is jagged, and is sleeved on versatilely between second locking ring 800 and lower collar 600 on the telescopic pipe 200 in described lock nut 300 by the order up and down of the collar in second and the 3rd locking ring.Further, can also be on the basis of the above, add the collar in the 3rd again, its upper and lower inner peripheral surface is horn-like up and down respectively, one the 4th locking ring, its outer circumferential face is drum type, and the stage casing is jagged, and is sleeved on versatilely between the 3rd locking ring and lower collar 600 on the telescopic pipe 200 in described lock nut 300 by the order up and down of the collar in the 3rd and the 4th locking ring.Like this, just can adapt under situation and use than heavy load.
It is a kind of general formulation that the outer circumferential face that it is pointed out that locking ring is drum type, should not become a kind of restriction.In fact, as long as its upper and lower outer circumferential face is the chamfering shape, middle outer circumferential face evagination can interact with the horn-like inner peripheral surface of the upper and lower collar and produce the shape that all is interpreted as drum type of radial pressure.
In a word, according to design of the present utility model, those of ordinary skill in the art can also be according to the practical application needs, the increase and decrease locking ring and the corresponding collar, and satisfying different requirements, but this change can not exceed the scope of claims of the present utility model.
Claims (4)
1, a kind of telescopic pipe positioning device, comprise an outer tube, one telescopically is inserted into telescopic pipe and the positioning device in this outer tube, described positioning device comprises, one thread set is the lock nut of tube end outside, telescopic pipe stretches out from this lock nut end, one locking ring, its outer circumferential face is drum type, and the stage casing is jagged, it is characterized in that, described positioning device also comprises, the collar on one, its down inner peripheral surface be downward horn-like, a lower collar, inner peripheral surface is upwards horn-like on it, and these rings are by the last collar, the order of locking ring and lower collar is sleeved on the telescopic pipe that is positioned at described lock nut from top to bottom versatilely.
2, telescopic pipe positioning device as claimed in claim 1, it is characterized in that, described positioning device, also comprise, the collar in, its upper and lower inner peripheral surface is horn-like up and down respectively, one second locking ring, its outer circumferential face is drum type, and the stage casing is jagged, and is sleeved on versatilely between the locking ring and lower collar on the telescopic pipe in described lock nut by the order up and down of the middle collar and second locking ring.
3, telescopic pipe positioning device as claimed in claim 2, it is characterized in that, described positioning device also comprises the collar in one second, its upper and lower inner peripheral surface is horn-like up and down respectively, one the 3rd locking ring, its outer circumferential face is drum type, and the stage casing is jagged, and is sleeved on versatilely between second locking ring and lower collar on the telescopic pipe in described lock nut by the order up and down of the collar in second and the 3rd locking ring.
4, telescopic pipe positioning device as claimed in claim 3, it is characterized in that, described positioning device also comprises the collar in the 3rd, its upper and lower inner peripheral surface is horn-like up and down respectively, one the 4th locking ring, its outer circumferential face is drum type, and the stage casing is jagged, and is sleeved on versatilely between the 3rd locking ring and lower collar on the telescopic pipe in described lock nut by the order up and down of the collar in the 3rd and the 4th locking ring.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 99239814 CN2405058Y (en) | 1999-09-30 | 1999-09-30 | Device for positioning telescopic tube |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 99239814 CN2405058Y (en) | 1999-09-30 | 1999-09-30 | Device for positioning telescopic tube |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2405058Y true CN2405058Y (en) | 2000-11-08 |
Family
ID=34027000
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 99239814 Expired - Fee Related CN2405058Y (en) | 1999-09-30 | 1999-09-30 | Device for positioning telescopic tube |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2405058Y (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101677699B (en) * | 2007-03-14 | 2012-01-11 | 奥丁·基瓦鲁 | Length adjustable member |
| CN103967895A (en) * | 2014-05-14 | 2014-08-06 | 十堰融丰汽车专用件有限公司 | Telescopic rod safety device |
-
1999
- 1999-09-30 CN CN 99239814 patent/CN2405058Y/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101677699B (en) * | 2007-03-14 | 2012-01-11 | 奥丁·基瓦鲁 | Length adjustable member |
| CN103967895A (en) * | 2014-05-14 | 2014-08-06 | 十堰融丰汽车专用件有限公司 | Telescopic rod safety device |
| CN103967895B (en) * | 2014-05-14 | 2016-03-30 | 十堰融丰汽车专用件有限公司 | Flexible rod safety installations |
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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 |