CN202579576U - Screw fastening anti-looseness structure for firing mechanism - Google Patents
Screw fastening anti-looseness structure for firing mechanism Download PDFInfo
- Publication number
- CN202579576U CN202579576U CN 201220044935 CN201220044935U CN202579576U CN 202579576 U CN202579576 U CN 202579576U CN 201220044935 CN201220044935 CN 201220044935 CN 201220044935 U CN201220044935 U CN 201220044935U CN 202579576 U CN202579576 U CN 202579576U
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- fastening
- steel wire
- screw
- framing mask
- push rod
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Abstract
The utility model discloses a screw fastening anti-looseness structure for a firing mechanism, and belongs to the technical field of machinery. The screw fastening anti-looseness structure comprises a firing push rod, a limiting frame, a flange, an elastic part, fastening screws, a steel wire, fastening bolts and a stander, wherein the fastening bolts are arranged on the limiting frame; the number of fastening bolts is greater than or equal to that of fastening screws; the fastening bolts are porous bulges or intercommunicating holes formed in the limiting frame at one time; each fastening screw is provided with a head hole; and the steel wire penetrates through the head holes of the fastening screws and a hole of at least one fastening bolt, and two ends of the steel wire are screwed down, so that the steel wire is in a tight state. Under a high-vibration environment, the screws can be reliably prevented from loosening and falling, and an obvious anti-looseness effect is achieved; and the interference influence on other parts is reduced.
Description
Technical field
The utility model belongs to field of mechanical technique, relates to the fastening locking structure of a kind of screw, is particularly useful for vibrating the firing lock in the rugged environment.
Background technique
In order under the rugged environment of high strong vibration, to realize fastening locking of screw, fastening locking structure of better way screw and method need be provided.The fastening anti-loose method of screw is in the past turned round steel wire in two or more screw head hole usually, thereby realizes each screw screw locking under high-strength vibration environment; Just in case steel wire is loosening or disconnection, the locking functions of each screw all lost efficacy, and saw accompanying drawing 1 (a).Connect this some moving body of structure easy interference with steel wire mutually between each screw in addition, therefore under the rugged environment of high strong vibration, can not adopt the method to realize the locking of screw; The utility model makes and realizes the locking of screw in the case through installing fastening bolt additional, and has a style of one's own, is independent of each other between each screw, and the position of this fastening bolt is flexible and changeable, to solve the interference problem under the different occasions.
The model utility content
The purpose of the utility model is in order to overcome the defective of prior art, can to interfere some moving body and improve reliability problems when locking in order to solve under the high strong vibration rugged environment with conventional method, proposes fastening locking structure of a kind of screw and method.
The utility model method realizes through following technical proposals:
A kind of fastening anti-loose structure of screw that is used for firing lock comprises: percussion push rod, framing mask, flange, elastic member, fastening screw trip bolt, steel wire, fastening bolt, frame;
Framing mask is fixed on the frame by fastening screw trip bolt; Has flange on the body of rod of percussion push rod; Also be with elastic member on the body of rod between flange and the percussion push rod percussion end; The two ends of this elastic member contact flange and frame respectively, and said elastic member is in compressive state and flange is withstood on the framing mask, and the percussion end withdrawal of feasible percussion push rod also is positioned at home; When outer force urges was pulled the trigger push rod, the percussion push rod made flange pressure elasticity parts along its axial motion, and percussion end stretches out, and triggers peripheral operation; During the external force cancellation, the percussion push rod sets back under the effect of elastic member, and promptly elastic member withstands on flange on the framing mask, and percussion end is recovered to home;
Has fastening bolt on the framing mask; Its quantity is more than or equal to the quantity of fastening screw trip bolt; Said fastening bolt be " convexity with holes " or on framing mask " intercommunicating porosity " of machine shaping once, said each fastening screw trip bolt all has a hole, each fastening screw trip bolt adopts steel wire to pass the hole of its hole and at least 1 fastening bolt respectively; And two of steel wire tightened, make steel wire be in tight state;
The position of fastening bolt is arranged on the framing mask near the fastening screw trip bolt that need connect separately, and guarantees that under the working state after tightening with steel wire and fastening screw trip bolt, steel wire does not contact with other parts.
As preferably, said elastic member is a spring.
As preferably, on said framing mask, fastening screw trip bolt is laid in the symmetrical position of percussion push rod both sides, makes framing mask stressed evenly.
As preferably, said " convexity with holes " is the convex parts with holes that is welded on the framing mask, or the convex portion with holes of the integrated machine shaping that is had on the framing mask.
The contrast prior art; The beneficial effect of the utility model method is; The utility model is under the environment of high strong vibration and when using under the irrealizable situation of traditional steel wire anti-loose method; Prevent that reliably screw loosening from coming off, have tangible anti-loosing effect, and reduced interference effect other parts.
Description of drawings
Fig. 1 is fastening structure and the utility model structure comparative example figure of loosening of conventional screw; (a) be conventional construction; Adopt the fastening structure of the utility model when (b) being four screws;
Fig. 2 is percussion push rod limiting structure figure; (a) be percussion push rod side-looking directional diagram; (b) be that A is to plan view;
Fig. 3 is that the conventional screw fastening structure of firing lock is interfered schematic representation with the percussion push rod;
Fig. 4 influences framing mask intensity schematic representation for screw position moves down;
Fig. 5 is " intercommunicating porosity " schematic representation of machine shaping on framing mask;
Among the figure, 1-percussion push rod, 2-framing mask, 3-flange, 4-spring, 5-fastening screw trip bolt, 6-steel wire, 7-fastening bolt, 8-frame, 9-percussion end.
Embodiment
Below in conjunction with accompanying drawing and embodiment the mode of execution of the utility model is elaborated.
Need bear the impact force when the percussion push rod is regained in the firing lock after framing mask is fastening, ocsillator strenght is big, twines the screw check method so must use with steel wire.
A kind of embodiment who is used for the fastening anti-loose structure of screw of firing lock comprises: percussion push rod, framing mask, flange, spring, fastening screw trip bolt, steel wire, fastening bolt, frame, see accompanying drawing 2, wherein,
Framing mask is fixed on the frame by 2 fastening screw trip bolts, and these 2 fastening screw trip bolts lay respectively at the both sides of percussion push rod, has flange on the body of rod of percussion push rod; Also be with spring, the two ends of spring contact flange and frame respectively, and spring withstands on flange on the framing mask under nature; The percussion end of feasible percussion push rod is regained and is positioned at home, and when outer force urges was pulled the trigger push rod, the percussion push rod was along its axial motion; Make the flange pressure spring, percussion end stretches out, and triggers peripheral operation; During the external force cancellation, the percussion push rod sets back under the effect of spring, and percussion end is recovered to home.Because vibrations are violent usually when carrying out firing action; Especially pulling the trigger push rod is rebounded by spring; Shake acutely during flange bump framing mask, two fastening screw trip bolts of fixed constraints frame must be taked reliable proof measures, and conventional method adopts two screws to intersect and twines locking (see figure 3); But can interfere influence percussion pushrod movement with the percussion push rod.If the fastening screw trip bolt position is moved down (see figure 4), framing mask may bending deflection or fracture under the frequent movement of percussion push rod is impacted, and therefore, conventional method can not realize locking functions.
In the present embodiment, welding or process two fastening bolts on framing mask, fastening bolt can for " convexity with holes " or on framing mask once machine shaping " intercommunicating porosity " (see figure 5).Fastening bolt the position is set: on framing mask near needing fastening screw separately; With working state after screw tightens separately under do not contact with miscellaneous part); The use steel wire passes the hole of each screw head hole and fastening bolt separately and tightens, and just can reliably realize the locking of screw, and have a style of one's own between each screw; Be independent of each other, reach perfect anti-loosing effect.
Accompanying drawing 1 (b) is that four fastening screw trip bolts adopt the fastening locking schematic representation of this method.We can see that each fastening screw trip bolt is fastened independently contrast accompanying drawing 1 (a), thereby when steel wire becomes flexible or break off, can not cause framing mask to break away from, otherwise the order of severity that fault causes will promote greatly.
Each fastening screw trip bolt also can with surpass 1 fastening bolt and link to each other.Fastening bolt on the same framing mask can adopt " convexity with holes " also can adopt the form of " intercommunicating porosity "; When adopting " convexity with holes "; Protruding height also can be different, and unnecessary all fastening bolts all adopt same form, the space between like this can each parts of flexible adaptation firing lock; Reduce and interfere other parts work, make firing lock have stability.
Above-described specific descriptions; Purpose, technological scheme and beneficial effect to model utility have carried out further explain, it should be understood that the above is merely the specific embodiment of the utility model; And be not used in the protection domain that limits the utility model; All within the spirit and principle of the utility model, any modification of being made, be equal to replacement, improvement etc., all should be included within the protection domain of the utility model.
Claims (4)
1. the fastening anti-loose structure of screw that is used for firing lock comprises: percussion push rod, framing mask, flange, elastic member, fastening screw trip bolt, steel wire, fastening bolt, frame;
Framing mask is fixed on the frame by fastening screw trip bolt; Has flange on the body of rod of percussion push rod; Also be with elastic member on the body of rod between flange and the percussion push rod percussion end; The two ends of this elastic member contact flange and frame respectively, and said elastic member is in compressive state and flange is withstood on the framing mask, and the percussion end withdrawal of feasible percussion push rod also is positioned at home;
It is characterized in that:
Have fastening bolt on the framing mask, its quantity is more than or equal to the quantity of fastening screw trip bolt, said fastening bolt be " convexity with holes " or on framing mask " intercommunicating porosity " of machine shaping once; Said each fastening screw trip bolt all has a hole, and each fastening screw trip bolt adopts steel wire to pass the hole of its hole and at least 1 fastening bolt respectively, and two of steel wire is tightened, and makes steel wire be in tight state;
The position of fastening bolt is arranged on the framing mask near the fastening screw trip bolt that need connect separately, and guarantees that under the working state after tightening with steel wire and fastening screw trip bolt, steel wire does not contact with other parts.
2. according to the said a kind of fastening anti-loose structure of screw that is used for firing lock of claim 1, it is characterized in that on said framing mask, fastening screw trip bolt is laid in the symmetrical position of percussion push rod both sides.
3. according to claim 1 or 2 said a kind of fastening anti-loose structures of screw that are used for firing lock; It is characterized in that; Said " convexity with holes " is the convex parts with holes that is welded on the framing mask, or the convex portion with holes of the integrated machine shaping that is had on the framing mask.
4. according to claim 1 or 2 said a kind of fastening anti-loose structures of screw that are used for firing lock, it is characterized in that said elastic member is a spring.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220044935 CN202579576U (en) | 2012-02-13 | 2012-02-13 | Screw fastening anti-looseness structure for firing mechanism |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220044935 CN202579576U (en) | 2012-02-13 | 2012-02-13 | Screw fastening anti-looseness structure for firing mechanism |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202579576U true CN202579576U (en) | 2012-12-05 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201220044935 Expired - Fee Related CN202579576U (en) | 2012-02-13 | 2012-02-13 | Screw fastening anti-looseness structure for firing mechanism |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103758843A (en) * | 2014-01-14 | 2014-04-30 | 徐州科源液压股份有限公司 | Locking device and locking method for mining dumper drive axle hub round jam nut |
| CN107450152A (en) * | 2017-10-13 | 2017-12-08 | 中国工程物理研究院流体物理研究所 | A kind of anti-loosening right-angle prism mounting bracket |
| CN110392790A (en) * | 2017-02-08 | 2019-10-29 | 西门子歌美飒可再生能源公司 | Safety device for bolted connections |
-
2012
- 2012-02-13 CN CN 201220044935 patent/CN202579576U/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103758843A (en) * | 2014-01-14 | 2014-04-30 | 徐州科源液压股份有限公司 | Locking device and locking method for mining dumper drive axle hub round jam nut |
| CN110392790A (en) * | 2017-02-08 | 2019-10-29 | 西门子歌美飒可再生能源公司 | Safety device for bolted connections |
| CN107450152A (en) * | 2017-10-13 | 2017-12-08 | 中国工程物理研究院流体物理研究所 | A kind of anti-loosening right-angle prism mounting bracket |
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| 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 |
Granted publication date: 20121205 Termination date: 20200213 |
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| CF01 | Termination of patent right due to non-payment of annual fee |