CN203979089U - Anti-blocking bolt - Google Patents
Anti-blocking bolt Download PDFInfo
- Publication number
- CN203979089U CN203979089U CN201420436459.1U CN201420436459U CN203979089U CN 203979089 U CN203979089 U CN 203979089U CN 201420436459 U CN201420436459 U CN 201420436459U CN 203979089 U CN203979089 U CN 203979089U
- Authority
- CN
- China
- Prior art keywords
- regular hexagon
- groove
- protection apron
- pilot hole
- bolt
- 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
Abstract
The utility model discloses a kind of anti-blocking bolt, its technological scheme main points are to be provided with and to be shaped as orthohexagonal protection apron in described regular hexagon groove, described protection apron and regular hexagon groove are sealed and matched, described protection apron vertically slides in regular hexagon groove, in described screw rod, be provided with pilot hole, described pilot hole communicates with regular hexagon bottom portion of groove, the relative regular hexagon bottom portion of groove of described protection apron is provided with the directional post suitable with pilot hole size, described directional post length is less than pilot hole length, the relative regular hexagon bottom portion of groove of described protection apron is provided with Returnning spring, conflict in protection apron side in described Returnning spring one end, the described Returnning spring the other end is fixedly connected on regular hexagon bottom portion of groove, the relative protection apron the other end of described directional post is provided with position-limit mechanism, make bolt be difficult for stopping up, be convenient for people to use.
Description
Technical field
The utility model relates to a kind of bolt, and more particularly, it relates to a kind of anti-blocking bolt.
Background technique
Bolt, by bolt head and screw rod (with an externally threaded cylindrical body) class fastening piece dimerous, is fixed union piece with the tapped hole on part, and this Connecting format claims bolt to connect.As bolt is screwed off from tapped hole, can make again part separately, be to belong to removably connect therefore bolt connects.
When bolt uses under rugged environment, regular hexagon groove on bolt head is easily adhered to stop up by foreign material and causes orthohexagonal spanner cannot insert regular hexagon groove causing bolt not back-out, people need to clear up these foreign material bolt of just back-outing, and the bolt that makes to back-out more bothers.
Model utility content
The deficiency existing for prior art, the purpose of this utility model is to provide one to be not easy to stop up, and the anti-blocking bolt of conveniently back-outing.
For achieving the above object, the utility model provides following technological scheme: a kind of anti-blocking bolt, comprise bolt head, screw rod, described bolt head is wholely set in screw rod one end, the relative screw rod of described bolt head one end is provided with regular hexagon groove, in described regular hexagon groove, be provided with and be shaped as orthohexagonal protection apron, described protection apron and regular hexagon groove are sealed and matched, described protection apron vertically slides in regular hexagon groove, in described screw rod, be provided with pilot hole, described pilot hole communicates with regular hexagon bottom portion of groove, the relative regular hexagon bottom portion of groove of described protection apron is provided with the directional post suitable with pilot hole size, described directional post length is less than pilot hole length, the relative regular hexagon bottom portion of groove of described protection apron is provided with Returnning spring, conflict in protection apron side in described Returnning spring one end, the described Returnning spring the other end is fixedly connected on regular hexagon bottom portion of groove, the relative protection apron the other end of described directional post is provided with position-limit mechanism.
Preferably, described position-limit mechanism comprises position limiting slide block, and described position limiting slide block is fixedly connected on directional post excircle side, and described pilot hole inner circumference side is provided with the bar shaped sliding-groove sliding for position limiting slide block.
Preferably, in described pilot hole, be provided with lubricant oil.
Preferably, the relative regular hexagon recess sidewall of described protection apron is provided with seal ring.
Compared with prior art, the beneficial effects of the utility model are: in the time that bolt does not use or while being fixed on tapped hole, bolt is in guard mode, protecting sheet is in regular hexagon groove top, just regular hexagon groove is hedged off from the outer world, effectively prevent from causing regular hexagon groove to stop up in external impurities arrival regular hexagon groove, facilitate people to use bolt, and people need to turn bolt and make, to insert regular hexagon groove with the big or small suitable regular hexagon spanner of regular hexagon groove, in the time that regular hexagon spanner inserts, just conflict and on protecting sheet, make protecting sheet vertically slide in regular hexagon groove, slip regular hexagon bottom portion of groove, make bolt in use state, make normally to turn in bolt energy, when protecting sheet is in the time vertically sliding, because directional post is fixedly connected with protecting sheet, directional post is vertically slided in pilot hole, effectively ensure that protecting sheet and regular hexagon groove are always in parastate, protecting sheet is slided more stable, and make the protecting sheet can be not stuck in regular hexagon groove, and make can not produce between regular hexagon groove and protecting sheet larger gap, effectively raise anti-plugging effect, and protecting sheet is in the time vertically sliding downwards, overcome Returnning spring elastic force and make Returnning spring compression, after bolt is fixing, protecting sheet has lost the thrust of regular hexagon spanner, the elastic force of putting aside by Returnning spring promotes protecting sheet to regular hexagon groove top, protecting sheet is hedged off from the outer world regular hexagon groove again, and limit stoper has effectively prevented outside protecting sheet release regular hexagon groove, effectively improve the accuracy of protection, ensure that regular hexagon groove is not stopped up by foreign material, and people are without unnecessary operation, just can use bolt, use bolt is convenient.
Brief description of the drawings
Fig. 1 is the anti-blocking bolt embodiment's of the utility model structural drawing;
Fig. 2 is the anti-blocking bolt embodiment's of the utility model guard mode figure;
Fig. 3 is the anti-blocking bolt embodiment's of the utility model use phase diagram;
Fig. 4 is the stereogram of the anti-blocking bolt embodiment of the utility model protecting sheet.
Reference character: 1, screw rod; 2, bolt head; 3, regular hexagon groove; 4, protection apron; 5, pilot hole; 6, directional post; 7, Returnning spring; 8, bar shaped sliding-groove; 9, position limiting slide block; 10, seal ring.
Embodiment
Referring to figs. 1 through Fig. 4, the anti-blocking bolt embodiment of the utility model is described further.
A kind of anti-blocking bolt, comprise bolt head 2, screw rod 1, described bolt head 2 is wholely set in screw rod 1 one end, described bolt head 2 relative screw rod 1 one end are provided with regular hexagon groove 3, in described regular hexagon groove 3, be provided with and be shaped as orthohexagonal protection apron 4, described protection apron 4 is sealed and matched with regular hexagon groove 3, described protection apron 4 is in the interior vertical slip of regular hexagon groove 3, in described screw rod 1, be provided with pilot hole 5, described pilot hole 5 communicates with regular hexagon groove 3 bottoms, described protection apron 4 relative regular hexagon groove 3 bottoms are provided with the directional post 6 suitable with pilot hole 5 sizes, described directional post 6 length are less than pilot hole 5 length, described protection apron 4 relative regular hexagon groove 3 bottoms are provided with Returnning spring 7, conflict in protection apron 4 sides in described Returnning spring 7 one end, described Returnning spring 7 the other ends are fixedly connected on regular hexagon groove 3 bottoms, relative protection apron 4 the other ends of described directional post 6 are provided with position-limit mechanism, in the time that bolt does not use or while being fixed on tapped hole, bolt is in guard mode, protecting sheet is in regular hexagon groove 3 tops, just regular hexagon groove 3 is hedged off from the outer world, effectively prevent from causing regular hexagon groove 3 to stop up in external impurities arrival regular hexagon groove 3, facilitate people to use bolt, and people need to turn bolt and make, to insert regular hexagon groove 3 with the big or small suitable regular hexagon spanner of regular hexagon groove 3, in the time that regular hexagon spanner inserts, just conflict and on protecting sheet, make protecting sheet in the interior vertical slip of regular hexagon groove 3, slip regular hexagon groove 3 bottoms, make bolt in use state, make normally to turn in bolt energy, when protecting sheet is in the time vertically sliding, because directional post 6 is fixedly connected with protecting sheet, make directional post 6 in the interior vertical slip of pilot hole 5, effectively ensure that protecting sheet and regular hexagon groove 3 are always in parastate, protecting sheet is slided more stable, and make the protecting sheet can be not stuck in regular hexagon groove 3, and make can not produce between regular hexagon groove 3 and protecting sheet larger gap, effectively raise anti-plugging effect, and protecting sheet is in the time vertically sliding downwards, overcoming Returnning spring 7 elastic force compresses Returnning spring 7, after bolt is fixing, protecting sheet has lost the thrust of regular hexagon spanner, the elastic force of putting aside by Returnning spring 7 promotes protecting sheet to regular hexagon groove 3 tops, protecting sheet is hedged off from the outer world regular hexagon groove 3 again, and limit stoper has effectively prevented outside protecting sheet release regular hexagon groove 3, effectively improve the accuracy of protection, ensure that regular hexagon groove 3 is not stopped up by foreign material, and people are without unnecessary operation, just can use bolt, use bolt is convenient.
Described position-limit mechanism comprises position limiting slide block 9, described position limiting slide block 9 is fixedly connected on directional post 6 excircle sides, described pilot hole 5 inner circumference sides are provided with the bar shaped sliding-groove 8 sliding for position limiting slide block 9, in the time that protecting sheet vertically slides, directional post 6 is along with in the interior slip of pilot hole 5, because position limiting slide block 9 is fixedly connected on directional post 6 cylindricals, make position limiting slide block 9 and then in the interior slip of bar shaped sliding-groove 8, in the time that protecting sheet slides into regular hexagon groove 3 tops regular hexagon groove 3 is hedged off from the outer world, position limiting slide block 9 just conflict bar shaped sliding-groove 8 relative bolt head 2 one end cannot continue slide, effectively protecting sheet is fixed, prevent that protecting sheet from skidding off regular hexagon groove 3.
In described pilot hole 5, be provided with lubricant oil, lubricant oil has effectively reduced the frictional force of directional post 6 with pilot hole 5, effectively prevents that directional post 6 and pilot hole 5 from wearing and tearing, and effectively raises the working life of bolt, and prevents that directional post 6 and pilot hole 5 from getting rusty.
Relative regular hexagon groove 3 sidewalls of described protection apron 4 are provided with seal ring 10, and seal ring 10 is sealing regular hexagon groove 3 effectively, makes the bolt inside under guard mode can not enter dust and foreign material, prevents that regular hexagon groove 3 is blocked.
Claims (4)
1. an anti-blocking bolt, comprise bolt head, screw rod, described bolt head is wholely set in screw rod one end, the relative screw rod of described bolt head one end is provided with regular hexagon groove, it is characterized in that: in described regular hexagon groove, be provided with and be shaped as orthohexagonal protection apron, described protection apron and regular hexagon groove are sealed and matched, described protection apron vertically slides in regular hexagon groove, in described screw rod, be provided with pilot hole, described pilot hole communicates with regular hexagon bottom portion of groove, the relative regular hexagon bottom portion of groove of described protection apron is provided with the directional post suitable with pilot hole size, described directional post length is less than pilot hole length, the relative regular hexagon bottom portion of groove of described protection apron is provided with Returnning spring, conflict in protection apron side in described Returnning spring one end, the described Returnning spring the other end is fixedly connected on regular hexagon bottom portion of groove, the relative protection apron the other end of described directional post is provided with position-limit mechanism.
2. anti-blocking bolt according to claim 1, is characterized in that: described position-limit mechanism comprises position limiting slide block, described position limiting slide block is fixedly connected on directional post excircle side, and described pilot hole inner circumference side is provided with the bar shaped sliding-groove sliding for position limiting slide block.
3. anti-blocking bolt according to claim 2, is characterized in that: in described pilot hole, be provided with lubricant oil.
4. anti-blocking bolt according to claim 3, is characterized in that: the relative regular hexagon recess sidewall of described protection apron is provided with seal ring.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420436459.1U CN203979089U (en) | 2014-08-04 | 2014-08-04 | Anti-blocking bolt |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420436459.1U CN203979089U (en) | 2014-08-04 | 2014-08-04 | Anti-blocking bolt |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203979089U true CN203979089U (en) | 2014-12-03 |
Family
ID=51976540
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420436459.1U Expired - Fee Related CN203979089U (en) | 2014-08-04 | 2014-08-04 | Anti-blocking bolt |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203979089U (en) |
-
2014
- 2014-08-04 CN CN201420436459.1U patent/CN203979089U/en not_active Expired - Fee Related
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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: 20141203 Termination date: 20190804 |