CN203035681U - Locking mechanism for telescopic tube - Google Patents
Locking mechanism for telescopic tube Download PDFInfo
- Publication number
- CN203035681U CN203035681U CN 201220724299 CN201220724299U CN203035681U CN 203035681 U CN203035681 U CN 203035681U CN 201220724299 CN201220724299 CN 201220724299 CN 201220724299 U CN201220724299 U CN 201220724299U CN 203035681 U CN203035681 U CN 203035681U
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- CN
- China
- Prior art keywords
- telescopic pipe
- slider
- outer tube
- locking framework
- coupling
- 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 - Lifetime
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- Mutual Connection Of Rods And Tubes (AREA)
Abstract
The utility model discloses a locking mechanism for a telescopic tube. The telescopic tube comprises an inner tube and an outer tube. The outer tube is slidingly sleeved outside the inner tube. The locking mechanism comprises a sleeving connection piece, a sliding piece and a locking pin. The sleeving connection piece is fixed on the outer side of the outer tube. The sliding piece is slidingly arranged on the sleeving connection piece along the radial direction of the outer tube. A fixing hole is reserved on the side wall of the outer tube. A locking hole is reserved on the side wall of the inner tube. One end of the locking pin is fixed on one end of the sliding piece, and the other end of the locking pin penetrates through the fixing hole to be inserted into the locking hole. The locking mechanism for the telescopic tube has the advantages of simple structure, convenience in operation, easiness in locking and unlocking and high safety.
Description
Technical field
The utility model relates to a kind of locking framework, relates in particular to a kind of telescopic pipe locking framework that telescopic pipe is locked.
Background technique
Scaffold, trestle ladder, service rack, step stools etc. are the instruments of climbing to a higher point that people use always in the daily life, these instruments generally all need move along with the variation of job site, therefore need have good travelling performance, in order to improve the travelling performance of these instruments, generally the supporting foot of these instruments is arranged to shrinking structure, so-called shrinking structure, be that supporting foot is made up of the multistage pipe fitting, these pipe fittings connect together mutually and can slide to axial, by such shrinking structure is set, these instruments can get up obsolete the time in folding, reduce volume, convenient mobile and transportation.Simultaneously, shrinking structure can make instrument have a plurality of use height, has improved the usability of instrument.
When use has the instrument of shrinking structure, for the weight that is fixed and carries staff and article, need a locking framework that telescopic pipe is locked, the quality of locking framework has directly determined stability and the Security of entire tool.
The equal more complicated of the structure of existing telescopic pipe locking framework, its release and locking process step are more, operate cumbersome; Therefore, be necessary to provide a kind of simple and stable structure, easy operating, safe telescopic pipe locking framework.
The model utility content
The purpose of this utility model is to provide a kind of simple and stable structure, easy operating, safe telescopic pipe locking framework.
To achieve these goals, the utility model provides a kind of telescopic pipe locking framework, and pipe and outer tube in described telescopic pipe comprises, described outer tube are socketed on outside the described interior pipe slidably, and described telescopic pipe locking framework comprises Coupling, slider and stop pin; Described Coupling is fixed in the described outer tube outside, described slider along described outer tube diameter to being arranged at slidably on the described Coupling, the sidewall of described outer tube has fixed hole, the sidewall of pipe is provided with locking aperture in described, and an end of described stop pin is with an end of described slider is fixed and the other end of described stop pin passes described fixed hole and the grafting of described locking aperture.
Compared with prior art, because the utility model is fixed on described Coupling on the described outer tube, and with described slider along described outer tube diameter to being arranged at slidably on the described Coupling, and be fixed in an end of described slider by the end with described stop pin, thereby make described stop pin the fixed hole of described outer tube and described in pipe locking aperture mutually over against the time be plugged in the described locking aperture, reach the purpose to described outer tube and the mutual locking of interior pipe, structure is very simple, and because described stop pin need be by the driving of described slider, therefore be difficult for breaking away from automatically described locking aperture, position between described outer tube and the interior pipe is highly stable, has strengthened the Security of using; The locking of whole described telescopic pipe locking framework or unlocking operation only need just can be finished stroke of described slider slip, and be easy to operate quick.
Preferably, the madial wall of described outer tube inwardly protrudes out the formation draw runner, described in the outer side wall of the pipe formation chute that caves inward, described draw runner is placed in the described chute slidably.By described draw runner and chute are set, described draw runner is arranged within the described chute slidably, make described in pipe and outer tube relative slip the vertically, and circumferential relatively rotating can not take place, guaranteed that described fixed hole and described locking aperture are in same vertical position all the time, thereby guarantee described fixed hole and described locking aperture over against the time, described stop pin can accurately be pegged graft into described fixed hole and described locking aperture to lock described telescopic pipe.
Preferably, the outer side wall of described outer tube has some card complex holes, and the madial wall of described Coupling has the some projections corresponding with described card complex hole, and described projection is sticked in the described card complex hole.Offer card complex hole by the outer side wall at described outer tube, madial wall at Coupling arranges projection, described projection is fastened in the described card complex hole, thereby makes being sleeved on outside the described outer tube that described Coupling can be stable, guaranteed the stability of described telescopic pipe locking framework.
Preferably, the outer side wall of described Coupling outwards protrudes out that to form the location protruding, and the sidewall of described slider offers elongated hole, and described location is protruding to be arranged in the described elongated hole slidably.It is protruding by the sidewall at Coupling the location to be set, and offers elongated hole at the sidewall of slider, and is arranged in slidably in the described elongated hole described location is protruding, makes described slider can be arranged on the described Coupling and can slide along the radial direction of described outer tube.
Preferably, described Coupling has at least one guiding rib that extends along the central axis direction of described stop pin, and described slider has the guiding groove corresponding with described guiding rib, and described guiding rib and described guiding groove are slidingly matched.By described guiding rib and described guiding groove are set, described slider can only be slided along the central axis direction of described stop pin, prevented relative the rocking between described slider and the described Coupling, make described telescopic pipe locking framework more stable.
Preferably, the madial wall of described slider one end offers containing groove, and an end of described stop pin is fixedly arranged in the described containing groove.By described containing groove is set, described stop pin can be fixedlyed connected and lock or the described telescopic pipe of release along with the slip of described slider with described slider.
Preferably, described telescopic pipe locking framework also comprises elastic element, and the restoring force direction of described elastic element is opposite with the movement direction that described stop pin withdraws from described locking aperture, and described elastic element is arranged between described slider and the described Coupling.By between described slider and described Coupling, described elastic element being set, make described slider after the slip release that is pressed, can be subjected to the elastic-restoring force effect of described elastic element and automatically reset, again described telescopic pipe is locked.
Particularly, described elastic element is the compression spring, and described compression spring is arranged at the other end of the described slider relative with an end of fixing described stop pin.
More specifically, the other end inboard of described slider offers receiving hole, the ccontaining described elastic element of described receiving hole.By described receiving hole is set, described compression spring can stably be fixed between described slider and the described Coupling, prevent that described compression spring from producing displacement.
Preferably, the end face at described slider two ends is provided with the friction line that increases surface friction drag.By described friction line is set, has increased the frictional force of described end face, thereby more easily described slider has been operated.
Description of drawings
Fig. 1 is the overall schematic of the utility model telescopic pipe locking framework.
Fig. 2 is the decomposing schematic representation of the utility model telescopic pipe locking framework.
Fig. 3 is the utility model telescopic pipe locking framework lock state sectional drawing.
Fig. 4 is the utility model telescopic pipe locking framework released state sectional drawing.
Embodiment
Below in conjunction with the accompanying drawing that provides, specific descriptions are made in preferred embodiment of the present utility model.
As shown in Figure 1 and Figure 2, the utility model telescopic pipe locking framework 1 comprises Coupling 10, slider 11, stop pin 12 and compression spring 13.
As shown in Figure 2, pipe 21 and outer tube 22 in described telescopic pipe comprises, the sidewall of described outer tube 22 has fixed hole 220, the outer side wall of described outer tube 22 is offered some card complex holes 221, the sidewall of pipe 21 is provided with locking aperture 210 in described, described locking aperture 210 can arrange a plurality of, the central axis direction setting of pipe 21 in described respectively; The madial wall of described outer tube 22 inwardly protrudes out and forms draw runner 222, the outer side wall of pipe 21 caves inward and forms chute 211 in described, described draw runner 222 is placed in the described chute 211 slidably, by described draw runner 222 and chute 211 are set, make described in pipe 21 and outer tube 22 relative slip the vertically, and circumferential relatively rotating can not take place, guaranteed that described fixed hole 220 and described locking aperture 210 are in same vertical position all the time, thereby guarantee described fixed hole 220 and described locking aperture 210 over against the time, described stop pin 12 can accurately peg graft into described fixed hole 220 and described locking aperture 210 with lock described in pipe 21 and outer tube 33;
See also Fig. 2 again, the madial wall of described Coupling 10 arranges some projections 105, described projection 105 is sticked in described card complex hole 221 makes described Coupling 10 be linked in an end of outer tube 22 regularly, and the sidewall of described Coupling 10 has and corresponding first through hole 101 of described fixed hole 220 and second through hole 102 relative with described first through hole 101; The two side of described Coupling 10 outwards protrudes out and forms location protruding 103; The sidewall of described Coupling 10 is extended with four guiding ribs 104 along the central axis direction of described stop pin 12; By described location protruding 103 and guiding rib 104 are set, make being slidingly connected to outside the described Coupling 10 that described slider 11 can be firm, and can only slide along the central axis direction of described stop pin 12, prevent relative the rocking between described slider 11 and the described Coupling 10.
The sidewall of described slider 11 offers elongated hole 110, and described location protruding 103 is arranged in slidably described slider 11 is socketed on outside the described Coupling 10 slidably; The madial wall at the two ends of described slider 11 offers four guiding grooves 111, and what described guiding rib 104 slided is placed in the described guiding groove 111; The madial wall of described slider 11 1 ends offers containing groove 112, and the other end offers receiving hole 113; The end face at described slider 11 two ends is provided with friction line 114, by described friction line 114 is set, has increased the frictional force of end face, thereby more easily described slider 11 has been operated.
Certainly, described slider 11 also can be arranged at upper surface or the bottom surface of described Coupling 10, this moment, described slider 11 did not need to offer elongated hole 110 and guiding groove 111, described Coupling does not need to arrange described first through hole 101 and described second through hole 102 yet, guiding rib then is arranged at upper-end surface or the lower end of described Coupling 10, and 111 of described guiding grooves are arranged at bottom surface or the upper surface of described slider 11 accordingly.
One end of described stop pin 12 is fixedly arranged in the described containing groove interior 112 and the other end passes described first through hole 101 and described fixed hole 220 is pegged graft with described locking aperture 210.
One end of described compression spring 13 is placed in the described receiving hole 113, and the other end passes described second through hole 102 and contacts on the described outer tube 22, also can directly contact on the sidewall of described Coupling 10; By described compression spring 13 is set, make after pressing the described telescopic pipe locking framework 1 of described slider 11 releases, described slider 11 can be subjected to the elastic restoring force effect of described compression spring 13 and automatically reset, and again described telescopic pipe is locked.Described receiving hole 113 and described second through hole, 102 ccontaining described compression springs 13 can stably be fixed between described slider 11 and the described Coupling 10 described compression spring 13, prevent that described compression spring 13 from producing displacement.
With reference to Fig. 3 and Fig. 4, the releasing process of the utility model telescopic pipe locking framework 1 is: under lock state, press described slider 11, described slider 11 is slided along described guiding rib 104, this moment, described compression spring 13 was compressed, and simultaneously described slider 11 drives described stop pin 12 and moves, and an end of described stop pin 12 breaks away from described locking aperture 210, at this moment, be in released state between described interior pipe 21 and the outer tube 22.After the release, described in pipe 21 and the described outer tube 22 relative length of sliding to change described telescopic pipe freely.After having adjusted the position between described interior pipe 21 and the outer tube 22, need be when pipe 21 and outer tube 22 relock in described, described locking aperture 210 and described fixed hole 220 positions are overlapped, described slider 11 this moment described relatively Coupling 10 under the elastic restoring force effect of described compression spring 13 slides, described stop pin 12 is driven in the described locking aperture 210 of pegging graft, described telescopic pipe is locked, and pipe 21 and outer tube 22 were in the lock state in this moment was described.
The utility model compared with prior art, because the utility model is fixed on described Coupling 10 on the described outer tube 22, and described slider 11 is arranged on the described Coupling 10 along described outer tube 22 with radially sliding, and be fixed in an end of described slider 11 by the end with described stop pin 12, thereby make described stop pin 12 the fixed hole 220 of described outer tube 22 with described in manage arbitrary locking aperture 210 of 21 mutually over against the time be plugged in the described locking aperture 210, reach the purposes to described outer tube 22 and interior pipe 21 mutual lockings, structure is very simple, and because described stop pin 12 need be by the driving of described slider, therefore be difficult for breaking away from automatically described locking aperture 210, position between described outer tube 22 and the interior pipe 21 is highly stable, has strengthened the Security of using; The locking of whole described telescopic pipe locking framework 1 or unlocking operation only need just can be finished stroke of described slider slip, and be easy to operate quick.
Above disclosed only is preferred embodiments of the present utility model, can not limit the interest field of the utility model certainly with this, and therefore the equivalent variations of doing according to the utility model claim still belongs to the scope that the utility model is contained.
Claims (10)
1. a telescopic pipe locking framework is managed and outer tube in described telescopic pipe comprises, described outer tube is socketed on outside the described interior pipe slidably, and it is characterized in that: described telescopic pipe locking framework comprises Coupling, slider and stop pin; Described Coupling is fixed in the described outer tube outside, described slider along described outer tube diameter to being arranged at slidably on the described Coupling, the sidewall of described outer tube has fixed hole, the sidewall of pipe is provided with locking aperture in described, and an end of described stop pin is with an end of described slider is fixed and the other end of described stop pin passes described fixed hole and the grafting of described locking aperture.
2. telescopic pipe locking framework as claimed in claim 1, it is characterized in that: the madial wall of described outer tube inwardly protrudes out the formation draw runner, described in the outer side wall of the pipe formation chute that caves inward, described draw runner is placed in the described chute slidably.
3. telescopic pipe locking framework as claimed in claim 1, it is characterized in that: the outer side wall of described outer tube has some card complex holes, and the madial wall of described Coupling has the some projections corresponding with described card complex hole, and described projection is sticked in the described card complex hole.
4. telescopic pipe locking framework as claimed in claim 1 is characterized in that: the outer side wall of described Coupling outwards protrudes out that to form the location protruding, and the sidewall of described slider offers elongated hole, and described location is protruding to be arranged in the described elongated hole slidably.
5. telescopic pipe locking framework as claimed in claim 1, it is characterized in that: described Coupling has at least one guiding rib that extends along the central axis direction of described stop pin, described slider has the guiding groove corresponding with described guiding rib, and described guiding rib and described guiding groove are slidingly matched.
6. telescopic pipe locking framework as claimed in claim 1, it is characterized in that: the madial wall of described slider one end offers containing groove, and an end of described stop pin is fixedly arranged in the described containing groove.
7. telescopic pipe locking framework as claimed in claim 1, it is characterized in that: described telescopic pipe locking framework also comprises elastic element, the restoring force direction of described elastic element is opposite with the movement direction that described stop pin withdraws from described locking aperture, and described elastic element is arranged between described slider and the described Coupling.
8. telescopic pipe locking framework as claimed in claim 7 is characterized in that: described elastic element is the compression spring, and described compression spring is arranged at the other end of the described slider relative with an end of fixing described stop pin.
9. telescopic pipe locking framework as claimed in claim 8, it is characterized in that: the other end inboard of described slider offers receiving hole, the ccontaining described compression spring of described receiving hole.
10. telescopic pipe locking framework as claimed in claim 1 is characterized in that: the end face at described slider two ends is provided with the friction line that increases surface friction drag.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220724299 CN203035681U (en) | 2012-12-25 | 2012-12-25 | Locking mechanism for telescopic tube |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220724299 CN203035681U (en) | 2012-12-25 | 2012-12-25 | Locking mechanism for telescopic tube |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203035681U true CN203035681U (en) | 2013-07-03 |
Family
ID=48687810
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201220724299 Expired - Lifetime CN203035681U (en) | 2012-12-25 | 2012-12-25 | Locking mechanism for telescopic tube |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203035681U (en) |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106272523A (en) * | 2016-09-18 | 2017-01-04 | 苏州驱指自动化科技有限公司 | Square intermediate plate keeper |
| CN106974477A (en) * | 2015-11-17 | 2017-07-25 | 明门香港股份有限公司 | Seat folding structure |
| CN107495592A (en) * | 2017-09-30 | 2017-12-22 | 江永文 | Detachable sound box and charge function draw-bar box |
| CN108135147A (en) * | 2015-09-11 | 2018-06-08 | 斯派克初姆布兰斯有限公司 | Universal handle, reason hair tool or hair collection tool and application method |
| CN112385615A (en) * | 2020-11-18 | 2021-02-23 | 江苏省淡水水产研究所 | Fishing net support frame |
| WO2023185182A1 (en) * | 2022-03-30 | 2023-10-05 | 蔚来汽车科技(安徽)有限公司 | Vehicle seat apparatus |
-
2012
- 2012-12-25 CN CN 201220724299 patent/CN203035681U/en not_active Expired - Lifetime
Cited By (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108135147A (en) * | 2015-09-11 | 2018-06-08 | 斯派克初姆布兰斯有限公司 | Universal handle, reason hair tool or hair collection tool and application method |
| CN108135147B (en) * | 2015-09-11 | 2022-01-11 | 斯派克初姆布兰斯有限公司 | Universal handle, grooming tool or hair collection tool and method of use |
| US11623338B2 (en) | 2015-09-11 | 2023-04-11 | Spectrum Brands, Inc. | Universal handle, grooming or hair collection tools, and methods of use |
| CN106974477A (en) * | 2015-11-17 | 2017-07-25 | 明门香港股份有限公司 | Seat folding structure |
| CN106272523A (en) * | 2016-09-18 | 2017-01-04 | 苏州驱指自动化科技有限公司 | Square intermediate plate keeper |
| CN107495592A (en) * | 2017-09-30 | 2017-12-22 | 江永文 | Detachable sound box and charge function draw-bar box |
| CN112385615A (en) * | 2020-11-18 | 2021-02-23 | 江苏省淡水水产研究所 | Fishing net support frame |
| CN112385615B (en) * | 2020-11-18 | 2022-10-04 | 江苏省淡水水产研究所 | Fishing net support frame |
| WO2023185182A1 (en) * | 2022-03-30 | 2023-10-05 | 蔚来汽车科技(安徽)有限公司 | Vehicle seat apparatus |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CX01 | Expiry of patent term |
Granted publication date: 20130703 |
|
| CX01 | Expiry of patent term |