CN203161732U - Tightening device - Google Patents
Tightening device Download PDFInfo
- Publication number
- CN203161732U CN203161732U CN 201320130281 CN201320130281U CN203161732U CN 203161732 U CN203161732 U CN 203161732U CN 201320130281 CN201320130281 CN 201320130281 CN 201320130281 U CN201320130281 U CN 201320130281U CN 203161732 U CN203161732 U CN 203161732U
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- CN
- China
- Prior art keywords
- nut
- ratchet
- fixer
- spring
- latch closure
- 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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Abstract
The utility model provides a tightening device, and relates to a device capable of fast and automatically locking a mechanism. The tightening device solves the problems that an existing tightening device is limited in tightening force, low in reliability, and relatively complex in machining and assembling process. According to the technical scheme, the tightening device comprises a bolt, a buckle, a nut, a ratchet wheel, a spring and a circular ring. The bolt is connected with the nut in a screwed mode after passing through the buckle, the nut comprises a large-diameter part, a small-diameter part and a clamping matching part which are sequentially connected, and one end of the clamping matching part is connected with the circular ring in a riveted mode. The ratchet wheel is circular, one end of the ratchet wheel protrudes inwards to form a clamping part, the ratchet wheel is sleeved on the nut, and the clamping part of the ratchet wheel is clamped on the clamping matching part of the nut. The spring is sleeved on the nut inside the ratchet wheel, one end of the spring is connected with the large-diameter part of the nut in an abutting mode, and the other end of the spring is connected with the bottom of the ratchet wheel in an abutting mode. The tightening device has the advantages that larger tight locking force can be provided, the occurrence of unbalanced moment is avoided, reliability is higher, and both machining and installation are convenient to conduct.
Description
Technical field
The utility model relates to a kind of military air environment cabinet in the process of using the equipment scaffold, for cabinet provides the device of a fast automatic locking mechanism, especially relates to a kind of fixer.
Background technique
Military air environment cabinet often all is installed on the equipment scaffold, for satisfying the maintenance requirement of equipment, requires military air environment cabinet to load and unload fast from the equipment scaffold.This just requires to invent a kind of fixer that can load and unload fast.
As shown in Figure 1: existing fixer mainly is made up of top cover 1, middleware 2, bottom 5, thimble 4, spring 3, bolt 6.Its tightening advocates to be provided by two springs.There are following two problems in existing fixer:
1, two springs 3 are contained in middleware 2 both sides respectively, are subjected to overall size limitations, and spring 3 sizes are less, and the spring filament diameter is restricted, and tightening power is limited.
2, the locking function of fixer is realized by two thimbles of spring 3 pushings 4.When two spring 3 power are inconsistent when causing that unbalance moment or other external force factors cause one of them or two springs stuck, locking was lost efficacy.Therefore this tightening device reliability has problems.
3, two microsprings 3 and thimble 4 have been used on the structure, processing and assembly technology relative complex.
Summary of the invention
The purpose of this utility model is: the problem at prior art exists, and provide a kind of bigger coupling mechanism force can be provided, avoid the generation of unbalance moment, reliability is higher, and fixer is eaily installed all in processing.
The purpose of this utility model is achieved through the following technical solutions:
A kind of fixer is characterized in that, this fixer comprises bolt, latch closure, nut, ratchet, spring and annulus; Described bolt passes behind the latch closure to screw with nut and is connected; Described nut comprises major diameter portion, minor diameter and the clamping auxiliary section that links to each other successively, the end riveted joint annulus of clamping auxiliary section; Described ratchet convexes into the inserted part in the one end ringwise, and this ratchet sleeve is on nut, and the inserted part of ratchet is connected on the clamping auxiliary section of nut; Described spring housing on the nut of ratchet inside, the major diameter portion of an end butt nut of spring, the other end butt ratchet bottom provides tightening power.
Preferably, uniform ratchet on the end end face of described ratchet and latch closure butt, and latch closure is provided with the ratchet that cooperates with it.
Preferably, the precession direction of the teeth directional of uniform ratchet and nut is opposite on the end end face of described ratchet and latch closure butt.
Preferably, cooperate for hexagonal hole between the clamping auxiliary section of the inserted part of described ratchet and nut.
Preferably, the outer wall of described ratchet is provided with anti-skidding line.
Preferably, cooperate by hexagonal hole between described latch closure and the bolt.
Compared with prior art, the utlity model has following advantage:
1, fixer adopts single big spring that pretightening force is provided, and the spring filament diameter is big, and bigger coupling mechanism force can be provided, and spring force acts on the circumferential surface, has avoided the generation of unbalance moment, and reliability is higher;
2, do not have microstructure in the fixer, and the part number compares few 3 of existing structure, all parts all can adopt mach method to produce in batches, do not need complicated technology and expensive process equipment, and therefore processing is installed all more convenient;
3, adopt hexagonal hole to cooperate between latch closure and the bolt, the restriction latch closure can only endwisely slip and can not rotate around bolt along bolt, the two flat feature that phase must be traditional, and reliability is higher.
4, in my company's military equipment using process, can finish to fast and reliable loading and unloading and the locking of airborne Military Electronic Equipment, satisfy army's normal training requirement at ordinary times, also improved the reliability of whole airborne products system of my company simultaneously greatly, strengthened the operation level of army.
Description of drawings
Fig. 1 is existing fixer structural representation;
Fig. 2 is the utility model fixer structural representation;
Fig. 3 is the perspective view of the utility model fixer ratchet;
Fig. 4 is the main TV structure schematic representation of the utility model fixer ratchet;
Fig. 5 is the A-A sectional structure schematic representation of Fig. 4;
Fig. 6 is the structural representation of nut;
Fig. 7 is that the utility model fixer is installed and used schematic representation.
Embodiment
Below in conjunction with the drawings and specific embodiments the utility model is elaborated.
Embodiment
Shown in Fig. 2 ~ 6, this fixer comprises that bolt 1(adopts the hexagonal shaped bolt), latch closure 2, nut 3, ratchet 4, spring 5 and annulus 6.Latch closure 2 inside are hexagonal hole shape, are enclosed within on the hexagonal shaped bolt 1.The hexagonal hole engagement limits latch closure can only endwisely slip and can not rotate along nut, nut 3 screws on bolt 1.Nut 3 comprises that the major diameter portion 31, minor diameter 32 and the clamping auxiliary section 33(that link to each other successively see Fig. 6), the end riveted joint annulus 6 of clamping auxiliary section 33.Ratchet 4 convexes into inserted part 41 ringwise in the one end, this ratchet 4 is enclosed within on the nut 3, and the inserted part 41 of ratchet 4 is connected on the clamping auxiliary section 33 of nut 3, and is provided with an end butt latch closure 2 of inserted part 41.Spring 5 is enclosed within on the nut 3 of ratchet 4 inside, an end butt major diameter portion 31 of spring 5, and the other end butt ratchet 6, spring 5 mainly provides tightening power, and under the effect of spring force, ratchet 4 has the trend of separating along central axis with nut 3.
For locked mutually between nut 3 and the latch closure 2, and can not turn on bolt 1, thereby can be on an end end face of ratchet 4 and latch closure 2 butts uniform ratchet 7, and latch closure 2 is provided with it the ratchet that cooperates, and the precession direction of the teeth directional of uniform ratchet 7 and nut 3 is opposite on the end end face of ratchet 4 and latch closure 2 butts.
Can not rotate mutually in order to make between ratchet 4 and the nut 3, can only be along the central axis relative movement, for square hole cooperates, also can adopt other fit systems certainly between the inserted part 41 of ratchet 4 and the clamping auxiliary section 33 of nut 3.An end that connects auxiliary section 33 in nut 3 clampings is riveted annulus 6, and restriction ratchet 4 makes spring 5 remain compressive state along the moving displacement of the central axial direction of nut 3, and lasting tightening power is provided.
Use for convenience, also the outer wall at ratchet 4 is provided with anti-skidding line 8.
Its usage mode is shown as shown in Figure 7: the utility model is connected with scaffold 11 by hinge 12, pin 14, and scaffold 11 rotates relatively, and tightening hook 13 is fixedly arranged on the cabinet 10.Latch closure 2 on slip the utility model fixer makes it to be buckled on the tightening hook 13.Rotation ratchet 4 and nut 3 assemblying bodys make it and latch closure 2 relative tightening, compressing latch closure 2 and 13 fastenings of tightening hook, restriction latch closure 2 moving along bolt 1 axial direction.This moment the ratchet 7 on the ratchet 4 with latch closure 2 on the mutual interlock of ratchet, make nut 3 and latch closure 2 locked and can not rotate at bolt 1 mutually.Spring 5 precompressions are arranged between ratchet 4 and the nut 3, so the ratchet on ratchet 4 and the latch closure 2 always is interlocked in work in the engineering, therefore realized the reliable locking to cabinet 10.
When needs unloaded lower case 10, pull-up also was rotated counterclockwise ratchet 4, drove nut 3 rotations, can remove the interlock between ratchet 4 and the latch closure 2, and then unclamp latch closure 2, unloaded lower case 10.
The above only is preferred embodiment of the present utility model; not in order to limit the utility model; should be pointed out that all any modifications of within spirit of the present utility model and principle, doing, be equal to replacement and improvement etc., all should be included within the protection domain of the present utility model.
Claims (6)
1. a fixer is characterized in that, this fixer comprises bolt, latch closure, nut, ratchet, spring and annulus; Described bolt passes behind the latch closure to screw with nut and is connected; Described nut comprises major diameter portion, minor diameter and the clamping auxiliary section that links to each other successively, the end riveted joint annulus of clamping auxiliary section; Described ratchet convexes into the inserted part in the one end ringwise, and this ratchet sleeve is on nut, and the inserted part of ratchet is connected on the clamping auxiliary section of nut; Described spring housing on the nut of ratchet inside, the major diameter portion of an end butt nut of spring, the other end butt ratchet bottom.
2. according to the described a kind of fixer of claim 1, it is characterized in that, uniform ratchet on the end end face of described ratchet and latch closure butt, and latch closure is provided with the ratchet that cooperates with it.
3. according to according to the described a kind of fixer of claim 2, it is characterized in that the precession direction of the teeth directional of uniform ratchet and nut is opposite on the end end face of described ratchet and latch closure butt.
4. according to according to the described a kind of fixer of claim 1, it is characterized in that, cooperate for hexagonal hole between the clamping auxiliary section of the inserted part of described ratchet and nut.
5. according to according to the described a kind of fixer of claim 1, it is characterized in that the outer wall of described ratchet is provided with anti-skidding line.
6. according to according to the described a kind of fixer of claim 1, it is characterized in that, cooperate by hexagonal hole between described latch closure and the bolt.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201320130281 CN203161732U (en) | 2013-03-21 | 2013-03-21 | Tightening device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201320130281 CN203161732U (en) | 2013-03-21 | 2013-03-21 | Tightening device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203161732U true CN203161732U (en) | 2013-08-28 |
Family
ID=49022918
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201320130281 Expired - Lifetime CN203161732U (en) | 2013-03-21 | 2013-03-21 | Tightening device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203161732U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103722398A (en) * | 2013-12-13 | 2014-04-16 | 芜湖市天雄新材料科技有限公司 | Limiting type anti-disengagement clamp |
| CN106337859A (en) * | 2016-11-08 | 2017-01-18 | 天津七二通信广播股份有限公司 | Spring ratchet locking mechanism and its use method |
| CN107420404A (en) * | 2017-09-27 | 2017-12-01 | 苏州工业园区新凯精密五金有限公司 | A kind of torque take-up screw assemblies |
-
2013
- 2013-03-21 CN CN 201320130281 patent/CN203161732U/en not_active Expired - Lifetime
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103722398A (en) * | 2013-12-13 | 2014-04-16 | 芜湖市天雄新材料科技有限公司 | Limiting type anti-disengagement clamp |
| CN106337859A (en) * | 2016-11-08 | 2017-01-18 | 天津七二通信广播股份有限公司 | Spring ratchet locking mechanism and its use method |
| CN107420404A (en) * | 2017-09-27 | 2017-12-01 | 苏州工业园区新凯精密五金有限公司 | A kind of torque take-up screw assemblies |
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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 | ||
| CX01 | Expiry of patent term |
Granted publication date: 20130828 |