CN106286514B - Locking device for telescopic rod - Google Patents
Locking device for telescopic rod Download PDFInfo
- Publication number
- CN106286514B CN106286514B CN201610880636.9A CN201610880636A CN106286514B CN 106286514 B CN106286514 B CN 106286514B CN 201610880636 A CN201610880636 A CN 201610880636A CN 106286514 B CN106286514 B CN 106286514B
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- China
- Prior art keywords
- sleeve
- inner locking
- extension pipe
- locking
- locking sleeve
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- 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.)
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- 230000009286 beneficial effect Effects 0.000 description 1
- 230000037237 body shape Effects 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
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Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16B—DEVICES FOR FASTENING OR SECURING CONSTRUCTIONAL ELEMENTS OR MACHINE PARTS TOGETHER, e.g. NAILS, BOLTS, CIRCLIPS, CLAMPS, CLIPS OR WEDGES; JOINTS OR JOINTING
- F16B7/00—Connections of rods or tubes, e.g. of non-circular section, mutually, including resilient connections
- F16B7/10—Telescoping systems
- F16B7/14—Telescoping systems locking in intermediate non-discrete positions
- F16B7/149—Telescoping systems locking in intermediate non-discrete positions with a sleeve or ring having a tapered or conical surface
Abstract
The invention discloses a locker for a telescopic rod, which comprises an extension pipe I, an extension pipe II, an inner locking sleeve and an outer locking adjusting sleeve, wherein the inner locking sleeve is arranged in the outer locking adjusting sleeve; the port of the inner locking sleeve is a conical body, the diameter of the upper port of the inner locking sleeve is larger than that of the upper port of the extension pipe I, a plurality of upper open grooves which are axially formed are annularly arranged at the upper end of the inner locking sleeve, and a plurality of lower open grooves which are axially formed are annularly arranged at the lower end of the inner locking sleeve. The outer locking adjusting sleeve drives the inner locking sleeve to move inwards, and the extension pipe II is clamped under the action of the conical structure; the locking action is realized by adopting the screw, and the locking mechanism cannot be loosened due to mistaken collision. Simple structure locks effectually, connects more reliably. The invention belongs to the technical field of locking devices.
Description
Technical Field
The invention relates to a locking device, in particular to a locking device for a telescopic rod, which is applied to a multi-section alpenstock, a ski pole, a walking pole and other multi-section poles and rods.
Background
The existing telescopic rods, such as multi-section alpenstock, ski pole, walking pole, etc., for example, the alpenstock is a special supporting auxiliary device, different from the ordinary walking pole. The alpenstock generally consists of two sections, three sections or a plurality of sections, and the length of the alpenstock can be changed according to the actual environment so as to be suitable for different crowds. After adjusting the required length, it is necessary to lock the adjacent tubes, as in the current state of the art, the name: a locking device for a alpenstock, the invention patent with patent number 201420617578.7, adopts an annular structure and a wrench to realize locking, the prior art has the following defects that the wrench is easy to touch when the user walks outdoors on a mountain, the wrench is opened, and the locking force is lost; in addition, the structure of above-mentioned patent adopts the friction locking mode, and after repetitious usage, when each part wearing and tearing, locking effect can worsen. Therefore, it is desirable to design a locking device for telescopic rods, which is suitable for multi-section alpenstock, ski pole, walking pole and other multi-section sticks and rods, and can lock the rods more reliably.
Disclosure of Invention
The technical problem to be solved by the invention is as follows: a locker for a telescopic rod for connecting adjacent pipes with more reliable locking is provided.
The technical scheme adopted by the invention is as follows: a locker for a telescopic rod comprises an extension pipe I, an extension pipe II, an inner locking sleeve and an outer locking adjusting sleeve, wherein the inner locking sleeve is arranged in the outer locking adjusting sleeve; the inner locking sleeve is in a conical shape with the diameter of an upper port larger than that of a lower port, the diameter of the upper port of the inner locking sleeve is larger than that of an upper port of the extension pipe I, a plurality of upper open slots which are axially arranged are annularly arranged at the upper end of the inner locking sleeve, and a plurality of lower open slots which are axially arranged are annularly arranged at the lower end of the inner locking sleeve.
The upper end opening of the extension pipe I is in a horn shape.
The extension pipe I and the outer locking adjusting sleeve are matched by adopting multi-thread threads.
The upper end of the inner locking sleeve and the upper end of the outer locking adjusting sleeve realize axial limiting, that is, the upper end of the inner locking sleeve is provided with an annular groove, and the inner wall of the upper end of the outer locking adjusting sleeve is annularly provided with an annular convex ring which is radially arranged and matched with the annular groove.
The upper opening groove is provided with three groups of 120-degree-interval arrangements, and the lower opening groove is provided with three groups of 120-degree-interval arrangements.
The outer edge of the lower end of the inner locking sleeve radially forms a radial convex ring.
The outer surface of the outer locking adjusting sleeve is provided with an anti-skid groove.
The outer surface of the outer locking adjusting sleeve is provided with a rubber sleeve.
And a radial retaining ring used for limiting the lower end of the inner locking sleeve is arranged in the extension pipe I.
The invention has the beneficial effects that: the locker for the telescopic rod drives the inner locking sleeve to move inwards through the outer locking adjusting sleeve, and the extension pipe II is clamped under the action of the conical structure; adopt the spiral to realize locking action, it is more convenient and reliable to compare prior art's buckle, can not loosen because of the mistake bumps. Simple structure locks effectually, connects more reliably.
Drawings
FIG. 1 is a schematic view of the present invention.
FIG. 2 is a partial schematic view of the present invention.
FIG. 3 is a partial schematic view of the present invention.
Fig. 4 is a cross-sectional view of the present invention.
In the figure, 1, an extension pipe I, 1.1, a radial retaining ring, 2, an extension pipe II, 3, an inner locking sleeve, 3.1, an upper open slot, 3.2, a lower open slot, 3.3, an annular groove, 3.4, a radial convex ring, 4, an outer locking adjusting sleeve, 4.1, an annular convex ring, 4.2 and an anti-skid groove.
Detailed Description
The following are preferred embodiments of the present invention, but the scope of the present invention is not limited thereto.
Referring to fig. 1-4, the locker for the telescopic rod of the present invention comprises an extension tube I1, an extension tube II2, an inner locking sleeve 3 and an outer locking adjusting sleeve 4, wherein the inner locking sleeve 3 is installed in the outer locking adjusting sleeve 4, the extension tube I1 is screwed with the lower end of the outer locking adjusting sleeve 4, the upper end of the inner locking sleeve 3 and the upper end of the outer locking adjusting sleeve 4 realize axial limit, the extension tube II2 is inserted in the inner locking sleeve 3, and the inner locking sleeve 3 is arranged in the extension tube I1; the inner locking sleeve 3 is in a conical body shape with the diameter of an upper port larger than that of a lower port, the diameter of the upper port of the inner locking sleeve 3 is larger than that of an upper port of an extension pipe I1, a plurality of upper open slots 3.1 which are axially arranged are annularly arranged at the upper end of the inner locking sleeve 3, and a plurality of lower open slots 3.2 which are axially arranged are annularly arranged at the lower end of the inner locking sleeve 3.
The upper port of the extension pipe I1 is in a trumpet shape.
The extension pipe I1 and the outer locking adjusting sleeve 4 are matched by multi-thread threads.
The upper end of the inner locking sleeve 3 and the upper end of the outer locking adjusting sleeve 4 are axially limited, namely an annular groove 3.3 is formed in the upper end of the inner locking sleeve 3, and an annular convex ring 4.1 which is radially arranged and matched with the annular groove 3.3 is annularly arranged on the inner wall of the upper end of the outer locking adjusting sleeve 4.
The upper opening groove 3.1 is provided with three groups of 120-degree-interval arrangements, and the lower opening groove 3.2 is provided with three groups of 120-degree-interval arrangements.
The lower extreme outward flange of interior lock sleeve 3 radially form radial bulge loop 3.4, radial bulge loop 3.4's design, in the lock sleeve 3 in for convenience extension pipe II better inserts, because during radial bulge loop 3.4 and extension pipe I1's inner wall contact, the lower port of interior lock sleeve 3 is by compressed state, so the open oral area in the upper end of interior lock sleeve 3 can be bigger a little, make things convenient for extension pipe II to insert.
The outer surface of the outer locking adjusting sleeve 4 is provided with an anti-skid groove 4.2.
The outer surface of the outer locking adjusting sleeve 4 is provided with a rubber sleeve.
A radial retainer ring 1.1 used for limiting the lower end of the inner locking sleeve 3 is arranged in the extension pipe I1. The inner locking sleeve 3 is prevented from falling into the extension tube I1.
The working principle of the invention is as follows: as shown in the figure
The inner locking sleeve 3 is clamped in the outer locking adjusting sleeve 4, the inner locking sleeve 3 is axially limited in the outer locking adjusting sleeve 4, the inner locking sleeve 3 is inserted into the extension pipe I1, the outer locking adjusting sleeve 4 is screwed on the extension pipe I1, and the extension pipe II2 is inserted into the inner locking sleeve 3; when extension pipe II2 is locked to needs, rotatory outer locking adjusting collar 4, the further extension pipe I that inserts of locking collar 3 in outer locking adjusting collar 4 drives, because extension pipe I's port is the toper dress of outer big-end-up, interior locking collar 3 also is the toper dress of big-end-up, so 3 outside openings of interior locking collar can be more and more littleer, and the clamp is more and more tight extension pipe I1, realizes the locking function.
Claims (5)
1. The utility model provides a locker for telescopic link which characterized in that: the inner locking sleeve is arranged in the outer locking adjusting sleeve, the extension pipe I is in threaded connection with the lower end of the outer locking adjusting sleeve, the upper end of the inner locking sleeve and the upper end of the outer locking adjusting sleeve realize axial limiting, the extension pipe II is inserted in the inner locking sleeve, and the inner locking sleeve is arranged in the extension pipe I; the inner locking sleeve is in a cone shape with the diameter of an upper port larger than that of a lower port, the diameter of the upper port of the inner locking sleeve is larger than that of the upper port of the extension pipe I, a plurality of axially-arranged upper open grooves are annularly arranged at the upper end of the inner locking sleeve, and a plurality of axially-arranged lower open grooves are annularly arranged at the lower end of the inner locking sleeve; the upper end of the inner locking sleeve and the upper end of the outer locking adjusting sleeve realize axial limiting, namely an annular groove is formed in the upper end of the inner locking sleeve, and an annular convex ring which is radially arranged and matched with the annular groove is annularly arranged on the inner wall of the upper end of the outer locking adjusting sleeve; the upper opening groove is provided with three groups of grooves which are arranged at intervals of 120 degrees, and the lower opening groove is provided with three groups of grooves which are arranged at intervals of 120 degrees; the outer edge of the lower end of the inner locking sleeve radially forms a radial convex ring; and a radial retaining ring used for limiting the lower end of the inner locking sleeve is arranged in the extension pipe I.
2. The locker for the telescopic rod of claim 1, wherein: the upper end opening of the extension pipe I is in a horn shape.
3. The locker for the telescopic rod of claim 1, wherein: the extension pipe I and the outer locking adjusting sleeve are matched by adopting multi-thread threads.
4. The locker for the telescopic rod of claim 1, wherein: the outer surface of the outer locking adjusting sleeve is provided with an anti-skid groove.
5. The locker for the telescopic rod of claim 1, wherein: the outer surface of the outer locking adjusting sleeve is provided with a rubber sleeve.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610880636.9A CN106286514B (en) | 2016-09-29 | 2016-09-29 | Locking device for telescopic rod |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610880636.9A CN106286514B (en) | 2016-09-29 | 2016-09-29 | Locking device for telescopic rod |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN106286514A CN106286514A (en) | 2017-01-04 |
| CN106286514B true CN106286514B (en) | 2021-06-11 |
Family
ID=57717057
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201610880636.9A Active CN106286514B (en) | 2016-09-29 | 2016-09-29 | Locking device for telescopic rod |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN106286514B (en) |
Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2019056100A1 (en) * | 2017-09-21 | 2019-03-28 | Decolin Inc. | Telescoping curtain rod finial assemblies |
| CN108994645A (en) * | 2018-09-19 | 2018-12-14 | 西京学院 | A kind of adaptive support device for thin-walled parts Milling Process |
| CN111578887A (en) * | 2020-05-10 | 2020-08-25 | 沈彬 | Wall crack measuring device and using method thereof |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN201723939U (en) * | 2010-04-22 | 2011-01-26 | 林松国 | Locking device of multiple tube |
| CN202082566U (en) * | 2011-06-07 | 2011-12-21 | 张奉果 | Locking mechanism between pin tubes of tripod |
| CN206072041U (en) * | 2016-09-29 | 2017-04-05 | 宁海安得文体用品有限公司 | Expansion link locker |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN203020361U (en) * | 2012-12-18 | 2013-06-26 | 宁波神马集团有限公司 | Telescopic pushing handle for baby carrier |
-
2016
- 2016-09-29 CN CN201610880636.9A patent/CN106286514B/en active Active
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN201723939U (en) * | 2010-04-22 | 2011-01-26 | 林松国 | Locking device of multiple tube |
| CN202082566U (en) * | 2011-06-07 | 2011-12-21 | 张奉果 | Locking mechanism between pin tubes of tripod |
| CN206072041U (en) * | 2016-09-29 | 2017-04-05 | 宁海安得文体用品有限公司 | Expansion link locker |
Also Published As
| Publication number | Publication date |
|---|---|
| CN106286514A (en) | 2017-01-04 |
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