CN202811708U - Locking device - Google Patents
Locking device Download PDFInfo
- Publication number
- CN202811708U CN202811708U CN 201220479342 CN201220479342U CN202811708U CN 202811708 U CN202811708 U CN 202811708U CN 201220479342 CN201220479342 CN 201220479342 CN 201220479342 U CN201220479342 U CN 201220479342U CN 202811708 U CN202811708 U CN 202811708U
- Authority
- CN
- China
- Prior art keywords
- torsion spring
- locking device
- pedestal
- internal diameter
- positioning
- 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
Links
Images
Abstract
The utility model discloses a locking device, which comprises a base, a sleeve and a torsion spring. A tubular structure is adopted by the base, the base is provided with a torsion spring mounting hole along the axial line, and one end of the torsion spring mounting hole is provided with a first positioning part; the sleeve is jacketed outside the base and is provided with a second positioning part; and a cylindrical spiral torsion spring is adopted by the torsion spring, the two ends of the torsion spring are respectively positioned in a way of propping against the first positioning part and the second positioning part, and the outside diameter of the torsion spring is smaller than the inside diameter of the torsion spring mounting hole. When the length of a sleeved hollow pipe is adjusted by the locking device, the sleeve is rotated at first opposite to the spiral direction of the torsion spring, then the length of the sleeved hollow pipe is adjusted, and finally the sleeve is loosened. Compared with the existing locking device, the locking device provided by the utility model can realize unlocking and locking of the sleeved hollow pipe by rotating and loosening the sleeve, and the operation can be performed more easily.
Description
Technical field
The utility model is related to outdoor goods technical field, more specifically to a kind of locking device.
Background technology
In order to meet demand of the client to outdoor goods portability, in the outdoor goods such as folding seat, folding bed, tent or parasols, typically all using support of the suit hollow pipe being connected by locking device as product.
Fig. 1 shows a kind of suit hollow pipe for employing existing locking device, includes the first thicker hollow pipe 03 in the suit hollow pipe, thinner the second hollow pipe 04 and locking device.Include inner tube 01 and outer tube 02 in locking device, wherein, the internal thread segment 020 for being provided with and coordinating with external thread section 010 on external thread section 010, the inner surface of outer tube 02 is provided with the outer surface of inner tube 01；Meanwhile, the gathering groove 011 for prolonging its axis direction is provided with inner tube 01, the internal diameter of outer tube 02 is slightly less than the external diameter of external thread section 010 in inner tube 01.
When using above-mentioned locking device, first, inner tube 01 is set in one end of the first hollow pipe 03, a part for its external thread section 010 is stuck on the first hollow pipe 03, a part is stuck in outside the pipe of the first hollow pipe 03；Then, the second hollow pipe 04 is inserted in the first hollow pipe 03, and one end of the second hollow pipe 04 is stretched out from the end of inner tube 01；Finally, outer tube 02 is installed in inner tube 01.It can be seen that, because the internal diameter of outer tube 02 is slightly less than the external diameter of external thread section 010 in inner tube 01, during internal thread segment 020 and external thread section 010 are screwed, the local of gathering groove is provided with inner tube 01 can be to contract, it is final to hold the second hollow pipe 04 tightly, so that the second hollow pipe 04 can not be moved with respect to the first hollow pipe 03.
But, in above-mentioned suit hollow pipe, in relative position between needing two hollow pipes of regulation, it is necessary to which first spun outer tube 02, makes it be taken off from inner tube 01, then hollow pipe could be adjusted；After adjustment is completed, in addition it is also necessary to outer tube 02 is installed in inner tube 01 again.Its mode of operation is relatively complicated.
Therefore, how a kind of locking device simple to operate, the technical problem as those skilled in the art's urgent need to resolve are provided.
Utility model content
In view of this, the utility model provides a kind of locking device, to realize the purpose of simplified locking device operating method.
To achieve the above object, the utility model provides following technical scheme：
A kind of locking device, including：
Pedestal, the pedestal is to be provided with diameter parallel in the torsion spring mounting hole of the base axis on tubular structure, the pedestal, and one end of the torsion spring mounting hole is provided with the first location division；
Sleeve pipe, described sleeve pipe is set in outside the pedestal, and the second location division is provided with described sleeve pipe；With
Torsion spring, the torsion spring is cylindroid helical-coil torsion spring, and one end of the torsion spring and first location division offset positioning, and the other end and second location division offset positioning, internal diameter of the external diameter less than the torsion spring mounting hole of the torsion spring.
Preferably, in above-mentioned locking device, also including the connecting hole coaxial with the torsion spring mounting hole, the internal diameter of the connecting hole is more than the internal diameter of the torsion spring.
Preferably, in above-mentioned locking device, connection positioning shoulder is provided between the connecting hole and the torsion spring mounting hole, the internal diameter of the connection positioning shoulder is more than the internal diameter of the torsion spring and less than the external diameter of the torsion spring.
Preferably, in above-mentioned locking device, the outer surface of the pedestal is provided with the installation chute and positioning runner communicated with each other, axially arranged and its one end and ft connection of the installation chute along the pedestal, and the positioning runner is the circumferentially disposed deep-slotted chip breaker along the pedestal；
The inner surface setting of described sleeve pipe has the positioning sliding block matched with the installation chute and the positioning runner, and the positioning sliding block is arranged in the positioning runner.
Preferably, in above-mentioned locking device, connection end is provided with the pedestal, the center of the connection end is provided with through hole of the internal diameter more than the internal diameter of the torsion spring.
Preferably, in above-mentioned locking device, the outer surface of described sleeve pipe is provided with non slip surface.
Preferably, in above-mentioned locking device, the pedestal and described sleeve pipe are moulding.
Preferably, in above-mentioned locking device, also include interior extension and outer extension, the interior extension is set in the pedestal, the interior extension with diameter greater than the torsion spring internal diameter and the material diameter sum of bore dia and two times of the torsion spring is installed less than the torsion spring；
The outer extension is connected with the pedestal, and the internal diameter of the outer extension is not less than the external diameter of the interior extension.
Preferably, in above-mentioned locking device, the axis of the interior extension, the pedestal and the outer extension three is overlapped.
Preferably, in above-mentioned locking device, the internal diameter of the outer extension is equal to the external diameter of the interior extension.
The utility model provides a kind of locking device, including pedestal, sleeve pipe and torsion spring.Wherein, pedestal is tubular structure, and its axis is provided with the torsion spring mounting hole that one end is provided with the first location division；Sleeve pipe is set in the outside of pedestal, and the second location division is provided with sleeve pipe；Torsion spring is specially cylindroid helical-coil torsion spring, and its two ends offsets positioning with the first location division, the second location division respectively, and the external diameter of torsion spring is less than the internal diameter of torsion spring mounting hole.
When using locking device provided by the utility model, first, pedestal is arranged on to the end of the first relatively large connecting tube of diameter；Then, using sleeve pipe by the opposite direction of its hand of spiral of torsion spring rotation direction, torsion spring is deformed upon after stress, the increase of its internal diameter；Finally, the second relatively small connecting tube of diameter is inserted in pedestal, and unclamps sleeve pipe, be now applied to the external force revocation on torsion spring, torsion spring binds round the outer surface for being located at the second connecting tube in the presence of its own resilient, prevents that it is moved.
When adjusting the length of suit hollow pipe using locking device provided by the utility model, first to the opposite direction revoling tube of the torsion spring hand of spiral, then the length of regulation suit hollow pipe, finally unclamps sleeve pipe again.Compared with existing locking device, locking device provided by the utility model is that the unblock and locking to being set with hollow pipe can be achieved by rotating and unclamping sleeve pipe, is operated simpler.
Brief description of the drawings
In order to illustrate more clearly of the utility model embodiment or technical scheme of the prior art, the accompanying drawing to be used needed for embodiment or description of the prior art will be briefly described below, apparently, drawings in the following description are only some embodiments of the present utility model, for those of ordinary skill in the art, on the premise of not paying creative work, other accompanying drawings can also be obtained according to these accompanying drawings.
Fig. 1 is the structural representation of existing locking device；
The structural representation for the locking device that Fig. 2 is provided by the utility model embodiment；
Fig. 3 is the structural representation for the locking device for being provided with connecting hole；
Fig. 4 is the structural representation for the locking device for being provided with positioning shoulder；
Fig. 5 is the assembling schematic diagram for the locking device for being provided with chute and positioning sliding block；
Fig. 6 is the structural representation for the locking device being connected by connection end with connecting tube；
The structural representation for the locking device that Fig. 7 is provided by another embodiment of the utility model.
In figure 1 above -7：
Embodiment
The utility model embodiment discloses a kind of locking device, to realize the purpose of simplified locking device operating method.
Below in conjunction with the accompanying drawing in the utility model embodiment, the technical scheme in the utility model embodiment is clearly and completely described, it is clear that described embodiment is only a part of embodiment of the utility model, rather than whole embodiments.Based on the embodiment in the utility model, the every other embodiment that those of ordinary skill in the art are obtained under the premise of creative work is not made belongs to the scope of the utility model protection.
Fig. 2 is refer to, the locking device that the utility model embodiment is provided includes pedestal 1, sleeve pipe 2 and torsion spring 3.
The locking device that the utility model embodiment is provided is generally used in suit hollow pipe, when using locking device provided by the utility model, first, pedestal is arranged on to the end of the first relatively large connecting tube of diameter；Then, using sleeve pipe by the opposite direction of its hand of spiral of torsion spring rotation direction, torsion spring is deformed upon after stress, the increase of its internal diameter；Finally, the second relatively small connecting tube of diameter is inserted in pedestal, and unclamps sleeve pipe, be now applied to the external force revocation on torsion spring, torsion spring binds round the outer surface for being located at the second connecting tube in the presence of its own resilient, prevents that it is moved.
In the length of the locking device regulation suit hollow pipe provided using the utility model embodiment, first to the opposite direction revoling tube of the torsion spring hand of spiral, then the length of regulation suit hollow pipe, finally unclamps sleeve pipe again.Compared with existing locking device, locking device provided by the utility model is that the unblock and locking to being set with hollow pipe can be achieved by rotating and unclamping sleeve pipe, is operated simpler.
For the ease of the installation of locking device, the connecting hole being arranged on pedestal is also included on the basis of the locking device that above-described embodiment is provided, in the locking device that the present embodiment is provided.As shown in figure 3, connecting hole 11 is coaxially disposed with torsion spring mounting hole 10, after the first connecting tube is inserted into connecting hole 11, it is coaxially disposed with the second connecting tube in torsion spring 3；Because the internal diameter of the first connecting tube is naturally larger than the external diameter of the second connecting tube, therefore, the internal diameter of connecting hole is more than the internal diameter of torsion spring.
Preferably, in the locking device that above-described embodiment is provided, connection positioning shoulder 12 is provided between torsion spring mounting hole 10 and connecting hole 11, connection positions internal diameter of the internal diameter more than torsion spring 3 and the external diameter less than torsion spring 3 of shoulder, as shown in Figure 4.Because torsion spring mounting hole 10 and connecting hole 11 are coaxially disposed, constitute a shoulder hole interconnected, connecting tube in connecting hole 11 is likely to affect the torsion spring 3 in torsion spring mounting hole 10, by setting connection positioning shoulder 12 between torsion spring mounting hole 10 and connecting hole 11, the connecting tube contact torsion spring 3 being arranged in connecting hole 11 can be prevented, and then prevent that torsion spring 3 from can not operate because of external interference according to design, improve the reliability of locking device.
In the locking device that above-described embodiment is provided, axial positioning is only carried out between pedestal 1 and sleeve pipe 2 by torsion spring 3, it is connected and unreliable.In order to solve this problem, in the locking device that the present embodiment is provided, also including the chute being arranged on pedestal 1 and the positioning sliding block being arranged on sleeve pipe 2.Fig. 5 is refer to, installation 14 two chutes of chute 13 and positioning runner are provided with pedestal 1, wherein, it is the axially arranged straight trough along pedestal 1 to install chute 13, and its one end is connected with the external world；Positioning runner 14 is the circumferentially disposed deep-slotted chip breaker along pedestal 1, and its one end is connected with installing chute 13；Meanwhile, there is positioning sliding block 20 in the inner surface setting of sleeve pipe 2, positioning sliding block 20 can be with installing chute 13, positioning runner 14 to matching, i.e., positioning sliding block 20 can be slided in chute 13, positioning runner 14 is installed.
In the locking device provided using the utility model embodiment, first, torsion spring 3 is filled in torsion spring mounting hole, and its one end and the first location division is offseted positioning；Then, positioning sliding block 20 is embedded in installation chute 13, and sleeve pipe 2 is set in the outer surface of pedestal 1；The other end of torsion spring 3 is stirred again, makes its positioning that offsets with the second location division；Finally, torsion spring 3 is unclamped, sleeve pipe 2 is rotated under the elastic force effect of torsion spring 3, positioning sliding block 20 is slipped into positioning runner 14.
As can be seen that in the locking device that the present embodiment is provided, positioning runner 14 and positioning sliding block 20 are pedestal 1 and sleeve pipe 2 provides positioning on axial direction, so that connection therebetween is relatively reliable.
Specifically, in the locking device that above-described embodiment is provided, the central angle of positioning runner 14 should be less than the torsion angle that torsion spring 3 is in maximum working torque.
In the locking device that above-described embodiment is provided, the connecting tube being connected with pedestal 1 is set in the connecting hole on pedestal 1.Further, in the locking device that another embodiment of the utility model is provided, connection end 15 is provided with pedestal 1.Fig. 6 is refer to, the end of pedestal 1 is provided with the connection end 15 for being connected with connecting tube, and the profile connecting tube of connection end 15 matches, can be cylinder or cuboid etc.；The through hole that is provided centrally with connection end 15, the internal diameter of the through hole is more than the internal diameter of torsion spring, meanwhile, the through hole it is coaxial with torsion spring mounting hole.In the locking device provided using the present embodiment, in the connecting tube of connection needed for can connection end 15 be inserted, through hole is provided centrally with due to connection end 15, another connecting tube being connected with torsion spring can be passed through from the through hole.
Specifically, in the locking device that above-described embodiment is provided, pedestal 1 and sleeve pipe 2 are moulding.Injection moulding is that the material of thawing is injected into die cavity by high pressure, the method that products formed is obtained after cooling and solidifying, and this method is suitable to the batch production of complex-shaped part.
Further, it is additionally provided with the outer surface of sleeve pipe 2 for anti-skidding non slip surface, the non slip surface can be the non slip surface of netted, striated or frosted shape, can prevents user when operating locking device because sleeve pipe 2 occurs to slide and produces unexpected.
It is required for supporting the use with connecting tube in view of the locking device that above-described embodiment is provided, the effect of distance between the part of locking two can be realized out, and between two parts not comprising connecting tube, the locking device that above-described embodiment is provided can not realize locking function.Therefore, on the basis of the locking device that above-described embodiment is provided, the locking device that the present embodiment is provided also includes interior extension 40 and outer extension 41.
Fig. 7 is refer to, and interior extension 40 is set in pedestal 1, interior extension 40 is locked by torsion spring 3；In order to realize locking, the internal diameter with diameter greater than torsion spring 3 of interior extension 40, meanwhile, it should also be less than torsion spring and bore dia and two times of torsion spring material diameter sum are installed.Outer extension 41 is connected with pedestal 1, because interior extension 40 is contained in inside by outer extension 41, therefore the internal diameter of outer extension 41 is not less than the external diameter of interior extension 40.
It is contemplated that, in the locking device provided using the present embodiment, two connected parts will be needed to be connected respectively with interior extension 40, outer extension 41, and then by the distance between extension 40 and outer extension 41 in regulation, realize the purpose of distance between two parts of adjustment.
Specifically, in the locking device that above-described embodiment is provided, interior extension 40, pedestal 1 and the axis of the three of outer extension 41 are overlapped.
It is preferred that, in the locking device that above-described embodiment is provided, the external diameter of interior extension 40 is equal to the internal diameter of outer extension 41.When interior extension 40 is when being locally provided in outer extension 41, the two forms grafting, and locking device is in the intensity of radial direction, less frangibility.
The embodiment of each in this specification is described by the way of progressive, what each embodiment was stressed be between the difference with other embodiment, each embodiment identical similar portion mutually referring to.
The foregoing description of the disclosed embodiments, enables professional and technical personnel in the field to realize or use the utility model.A variety of modifications to these embodiments be will be apparent for those skilled in the art, and generic principles defined herein can in other embodiments be realized in the case where not departing from spirit or scope of the present utility model.Therefore, the utility model is not intended to be limited to the embodiments shown herein, and is to fit to the most wide scope consistent with features of novelty with principles disclosed herein.
Claims (10)
1. a kind of locking device, it is characterised in that including：
Pedestal, the pedestal is to be provided with diameter parallel in the torsion spring mounting hole of the base axis on tubular structure, the pedestal, and one end of the torsion spring mounting hole is provided with the first location division；
Sleeve pipe, described sleeve pipe is set in outside the pedestal, and the second location division is provided with described sleeve pipe；With
Torsion spring, the torsion spring is cylindroid helical-coil torsion spring, and one end of the torsion spring and first location division offset positioning, and the other end and second location division offset positioning, internal diameter of the external diameter less than the torsion spring mounting hole of the torsion spring.
2. locking device according to claim 1, it is characterised in that also including the connecting hole coaxial with the torsion spring mounting hole, the internal diameter of the connecting hole is more than the internal diameter of the torsion spring.
3. locking device according to claim 1, it is characterised in that connection positioning shoulder is provided between the connecting hole and the torsion spring mounting hole, the internal diameter of the connection positioning shoulder is more than the internal diameter of the torsion spring and less than the external diameter of the torsion spring.
4. locking device according to claim 1, it is characterized in that, the outer surface of the pedestal is provided with the installation chute and positioning runner communicated with each other, the axially arranged and its one end and ft connection that chute is installed along the pedestal, the positioning runner is the circumferentially disposed deep-slotted chip breaker along the pedestal；
The inner surface setting of described sleeve pipe has the positioning sliding block matched with the installation chute and the positioning runner, and the positioning sliding block is arranged in the positioning runner.
5. locking device according to claim 1, it is characterised in that connection end is provided with the pedestal, the center of the connection end is provided with through hole of the internal diameter more than the internal diameter of the torsion spring.
6. locking device according to claim 1, it is characterised in that the outer surface of described sleeve pipe is provided with non slip surface.
7. locking device according to claim 1, it is characterised in that the pedestal and described sleeve pipe are moulding.
8. the locking device according to any one of claim 1-7, it is characterized in that, also include interior extension and outer extension, the interior extension is set in the pedestal, the interior extension with diameter greater than the torsion spring internal diameter and the material diameter sum of bore dia and two times of the torsion spring is installed less than the torsion spring；
The outer extension is connected with the pedestal, and the internal diameter of the outer extension is not less than the external diameter of the interior extension.
9. locking device according to claim 8, it is characterised in that the axis of the interior extension, the pedestal and the outer extension three is overlapped.
10. locking device according to claim 9, it is characterised in that the internal diameter of the outer extension is equal to the external diameter of the interior extension.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220479342 CN202811708U (en) | 2012-09-19 | 2012-09-19 | Locking device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220479342 CN202811708U (en) | 2012-09-19 | 2012-09-19 | Locking device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202811708U true CN202811708U (en) | 2013-03-20 |
Family
ID=47870589
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201220479342 Expired - Fee Related CN202811708U (en) | 2012-09-19 | 2012-09-19 | Locking device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202811708U (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103866870A (en) * | 2014-03-12 | 2014-06-18 | 北京工业大学 | Toothed fastener node |
| CN109342236A (en) * | 2018-11-30 | 2019-02-15 | 湖南长建科技有限公司 | A kind of intensity detecting device and its detection method of buried concrete component |
| CN112156281A (en) * | 2020-10-12 | 2021-01-01 | 普昂(杭州)医疗科技有限公司 | Needle locking structure, needle tube length adjusting method and needle device |
| WO2022078237A1 (en) * | 2020-10-12 | 2022-04-21 | 普昂(杭州)医疗科技股份有限公司 | Needle protection structure and protection method, and needle device |
-
2012
- 2012-09-19 CN CN 201220479342 patent/CN202811708U/en not_active Expired - Fee Related
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103866870A (en) * | 2014-03-12 | 2014-06-18 | 北京工业大学 | Toothed fastener node |
| CN109342236A (en) * | 2018-11-30 | 2019-02-15 | 湖南长建科技有限公司 | A kind of intensity detecting device and its detection method of buried concrete component |
| CN112156281A (en) * | 2020-10-12 | 2021-01-01 | 普昂(杭州)医疗科技有限公司 | Needle locking structure, needle tube length adjusting method and needle device |
| WO2022078237A1 (en) * | 2020-10-12 | 2022-04-21 | 普昂(杭州)医疗科技股份有限公司 | Needle protection structure and protection method, and needle device |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN202811708U (en) | Locking device | |
| CN203308844U (en) | Foldable structure on foldable bracket | |
| CN203322680U (en) | Universal folding support | |
| CN102022669B (en) | Light fixture and fixing device thereof | |
| CN205447267U (en) | Anti -tipping fixing device of gas bottle | |
| CN102673709A (en) | Handle assembly | |
| CN107172245A (en) | A kind of rotary mobile-phone support | |
| CN103256011B (en) | A kind of non-rotating joint connected for down-hole electrical module | |
| CN202520724U (en) | Expansion locking device | |
| CN205394359U (en) | Novel wrench socket | |
| CN104806608B (en) | Fitting structure | |
| CN207659000U (en) | A kind of lifting column being driven self-locking mechanism and its application | |
| CN206297359U (en) | One kind wheel Axile connection structure | |
| CN205592248U (en) | Retractable rod piece | |
| CN201027733Y (en) | Novel pipe coupling structure | |
| CN101767330B (en) | Handle | |
| CN204534357U (en) | A kind of LED street lamp | |
| CA2478594A1 (en) | Double shoulder oilfield tubular connection | |
| CN203414713U (en) | Double-wheel adjusting seat of photography lamp | |
| CN102926664A (en) | Sleeve for drill bit connection | |
| CN208040852U (en) | Connect bar assembly and the Display Rack with it | |
| CN104019121B (en) | Universal joint | |
| CN207961245U (en) | A kind of connection structure of pull rod shaft and rotary joint | |
| CN104236872B (en) | Cylinder fixing device | |
| CN207438026U (en) | A kind of leakage maintaining instrument |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20130320 Termination date: 20170919 |