CN203702779U - Rapid retractable fastening and locking device - Google Patents
Rapid retractable fastening and locking device Download PDFInfo
- Publication number
- CN203702779U CN203702779U CN201320885410.XU CN201320885410U CN203702779U CN 203702779 U CN203702779 U CN 203702779U CN 201320885410 U CN201320885410 U CN 201320885410U CN 203702779 U CN203702779 U CN 203702779U
- Authority
- CN
- China
- Prior art keywords
- pipe
- flexible rod
- nut
- stop
- fastening
- 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 discloses a rapid retractable fastening and locking device. The rapid retractable fastening and locking device solves the problem that retracting devices in the prior art are easy to loosen and poor in fastening effects. The rapid retractable fastening and locking device comprises a round tube, a retractable rod matched with the round tube, an abutting fastening nut, a fastening screw and a retractable positioning nut, wherein the abutting fastening nut is arranged outside the round tube and matched with the retractable rod, and the retractable positioning nut is arranged between the abutting fastening nut and the round tube and matched with the retractable rod. The retractable rod is provided with a groove, and the groove extends from the end of retractable rod, which is close to the round tube, to the middle of the retractable rod; the side surface of the abutting fastening nut is evenly provided with a plurality of threaded holes matched with the fastening screw; one end of the fastening screw can penetrate one of the screw hole to be embedded with the groove; the inner wall of the round tube is provided with a convex key matched with the groove. The rapid retractable fastening and locking device is simple in structure and high in practicality.
Description
Technical field
The utility model relates to the device that fastening or fixed component or machine parts are used, and is specifically related to a kind of quick-expansion stop locking device.
Background technique
Along with scientific and technical development, vehicle-mounted maneuvering platform is more and more extensive in the application of the field such as emergency management and rescue, medical treatment, and vehicle-mounted maneuvering platform is built on operation stand, and operation stand comprises framework and the expansion device for positioning supports.
Existing expansion device comprises flexible rod and is fixed on the pipe on framework, is threaded, when use between flexible rod and pipe, rotate flexible rod, flexible rod and pipe relatively move, and realize flexible, rely on the pretightening force being threaded to carry out stop simultaneously, because flexible rod is longer, when use, rotate flexible rod effort, and flexible slow, be not suitable with the requirement of quick emergency management and rescue, only rely in addition the pretightening force being threaded to carry out stop, poor stability, easily loosening, stopping effect is bad.
Model utility content
The utility model is intended to provide a kind of quick-expansion stop locking device, easily becomes flexible the problem that stopping effect is bad to solve expansion device in prior art.
In order to solve the problems of the technologies described above, the utility model provides quick-expansion stop locking device, the flexible rod that comprises pipe and mate with pipe, flexible rod is provided with thread section, also comprise the stop-nut that pushes against mating with flexible rod outside pipe, stop screw and pushing against the flexible setscrew nut mating with flexible rod between stop-nut and pipe, flexible rod is provided with groove, groove self extending bar extends to flexible rod middle part near pipe one end, it is radially provided with the tapped hole mating with stop screw to push against stop-nut, stop screw one end can be chimeric through tapped hole and described groove, round tube inner wall is provided with the protruding key mating with described groove.
Compared with prior art, the utility model has the advantage of: flexible rod upper groove coordinates with the protruding key of pipe, make flexible rod under the guiding of pipe epirelief key, to desired location, also avoid the rotation between flexible rod and pipe simultaneously by quick sliding; When use, rotate flexible setscrew nut to specified position, then rotate and push against stop-nut to offseting with flexible setscrew nut laminating, the stop screw that turn pushes against on stop-nut is inserted in flexible rod groove, avoid flexible rod to relatively rotate or cause with pipe being threaded loosening, so realize the action of quick-expansion and can stop lock, and simple in structure, easy to operate.
Further, flexible rod is provided with bearing table away from one end of pipe, and the working surface of bearing table is provided with slip-resistant texture, increases the lifting surface area of flexible rod, avoids flexible rod and surface of contact to slide simultaneously.
Further, described pipe is socketed with the square tube of mating with pipe outward, and part easily processing is produced, and has reduced cost.
Accompanying drawing explanation
Fig. 1 is the utility model quick-expansion stop locking device embodiment's plan view;
Fig. 2 is the A-A generalized section of Fig. 1;
Fig. 3 is the C-C generalized section of Fig. 1;
Fig. 4 is the B-B generalized section of Fig. 1;
Fig. 5 is the utility model quick-expansion stop locking device embodiment's stereogram.
Embodiment
Below in conjunction with drawings and Examples, technical solutions of the utility model are described in further detail:
As shown in Figure 1, Figure 2, shown in Fig. 3, Fig. 4 and Fig. 5, the quick-expansion stop locking device of a kind of embodiment of the utility model, comprise the pipe 11 of outside socket square tube 1 and the flexible rod 2 mating with pipe 11, pipe 11 and square tube 1 are by being welded and fixed, also comprise outer the pushing against stop-nut 4, stop screw 41 and pushing against the flexible setscrew nut 3 mating with flexible rod 2 between stop-nut 4 and pipe 11 of mating with flexible rod 2 of pipe 11, flexible rod 2 is provided with groove 21, and groove 21 self extending bars 2 extend to flexible rod 2 middle parts near pipe 11 one end.
Push against stop-nut 4 its radial equipartitions and have six tapped holes 42 that mate with stop screw 41, stop screw 41 one end can be chimeric through tapped hole 42 and described groove 21, pipe 11 inwalls are provided with the protruding key 12 mating with described groove 21, flexible rod 2 is provided with bearing table away from one end of pipe 11, and the working surface of bearing table is provided with slip-resistant texture.
When use, first quick-expansion adjustable telescopic rod 2 in pipe 11, in the time that pipe 11 and flexible rod 2 arrive required telescopic location, the flexible setscrew nut 3 on rotating extensible arm 2, has tentatively fixed telescopic location state.Flexible setscrew nut 3 on flexible rod 2 has tentatively been fixed after telescopic location state, on rotating extensible arm 2, push against retainer nut 4 to offseting with flexible setscrew nut 3 again, so that flexible setscrew nut 3 is no longer movable, after turn pushes against setscrew nut 3, the stop screw 41 that turn pushes against on stop-nut 4 is inserted in flexible rod 2 grooves 21, avoids flexible rod and pipe to relatively rotate to prevent from pushing against retainer nut 4 loosening.
Below described is by reference to the accompanying drawings only preferred implementation of the present utility model; but the utility model is not limited to above-mentioned mode of execution; should be understood that; for a person skilled in the art; do not departing under the prerequisite of the utility model structure; can also make various distortion and improvement, these also should be considered as protection domain of the present utility model, and these can not affect effect and practical applicability that the utility model is implemented.
Claims (3)
1. quick-expansion stop locking device, the flexible rod that comprises pipe and mate with pipe, flexible rod is provided with thread section, it is characterized in that: also comprise the stop-nut that pushes against mating with flexible rod outside pipe, stop screw and pushing against the flexible setscrew nut mating with flexible rod between stop-nut and pipe, flexible rod is provided with groove, groove self extending bar extends to flexible rod middle part near pipe one end, it is radially provided with the tapped hole mating with stop screw to push against stop-nut, stop screw one end can be chimeric through tapped hole and described groove, round tube inner wall is provided with the protruding key mating with described groove.
2. quick-expansion stop locking device according to claim 1, is characterized in that: flexible rod is provided with bearing table away from one end of pipe, and the working surface of bearing table is provided with slip-resistant texture.
3. quick-expansion stop locking device according to claim 1, is characterized in that: described pipe is socketed with the square tube of mating with pipe outward.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320885410.XU CN203702779U (en) | 2013-12-31 | 2013-12-31 | Rapid retractable fastening and locking device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320885410.XU CN203702779U (en) | 2013-12-31 | 2013-12-31 | Rapid retractable fastening and locking device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203702779U true CN203702779U (en) | 2014-07-09 |
Family
ID=51053230
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201320885410.XU Expired - Fee Related CN203702779U (en) | 2013-12-31 | 2013-12-31 | Rapid retractable fastening and locking device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203702779U (en) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107445096A (en) * | 2017-08-28 | 2017-12-08 | 鞍钢集团矿业有限公司 | Telescopic multifunctional hoisting apparatus |
| CN109159308A (en) * | 2018-07-17 | 2019-01-08 | 沈迪刚 | A kind of cutter device |
| WO2019183850A1 (en) * | 2018-03-28 | 2019-10-03 | 深圳市固胜智能科技有限公司 | Telescopic arm of pan-tilt and pan-tilt for image acquisition device |
| CN113394525A (en) * | 2021-05-26 | 2021-09-14 | 天能电池集团股份有限公司 | Combined acid adding kettle for storage battery |
| CN113685660A (en) * | 2021-08-25 | 2021-11-23 | 吴娜 | Hydraulic high-precision automatic leveling device with self-locking function |
-
2013
- 2013-12-31 CN CN201320885410.XU patent/CN203702779U/en not_active Expired - Fee Related
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107445096A (en) * | 2017-08-28 | 2017-12-08 | 鞍钢集团矿业有限公司 | Telescopic multifunctional hoisting apparatus |
| WO2019183850A1 (en) * | 2018-03-28 | 2019-10-03 | 深圳市固胜智能科技有限公司 | Telescopic arm of pan-tilt and pan-tilt for image acquisition device |
| CN109159308A (en) * | 2018-07-17 | 2019-01-08 | 沈迪刚 | A kind of cutter device |
| CN113394525A (en) * | 2021-05-26 | 2021-09-14 | 天能电池集团股份有限公司 | Combined acid adding kettle for storage battery |
| CN113685660A (en) * | 2021-08-25 | 2021-11-23 | 吴娜 | Hydraulic high-precision automatic leveling device with self-locking function |
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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: 20140709 Termination date: 20161231 |