CN207454481U - A kind of anti-drop bolt component - Google Patents
A kind of anti-drop bolt component Download PDFInfo
- Publication number
- CN207454481U CN207454481U CN201721598943.4U CN201721598943U CN207454481U CN 207454481 U CN207454481 U CN 207454481U CN 201721598943 U CN201721598943 U CN 201721598943U CN 207454481 U CN207454481 U CN 207454481U
- Authority
- CN
- China
- Prior art keywords
- screw rod
- hexagonal
- indent
- bolt head
- threaded hole
- 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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Abstract
The utility model discloses a kind of anti-drop bolt component, including：Hexagonal bolt head and screw rod, the screw rod is arranged on one end of hexagonal bolt head, the screw rod is provided with blind hole away from hexagonal bolt head one end indent, the blind-hole bottom indent is provided with threaded hole, the threaded hole inside spin is provided with short screw, the short screw is provided with cone away from threaded hole one end, described cone one end has been arranged concentrically transition round bar, small hexagonal bolt head has been arranged concentrically on the round bar, the small hex bolts cephalic par indent is provided with the first hexagonal indentations, the screw rod is provided with the groove for extending to threaded hole close to blind hole one end indent.By the above-mentioned means, anti-drop bolt component described in the utility model, is rotated by short screw, cone is pulled into blind hole, cone moves inward extruding and screw rod end diameter is supportted greatly, prevents bolt falling, improves the anti-dropout effect of bolt.
Description
Technical field
The utility model is related to fastener areas, more particularly to a kind of anti-drop bolt component.
Background technology
Bolt is very extensive in daily life or application in machine equipments, is a kind of most basic connector, passes through six
Angle spanner is screwed and dismantled to bolt.Bolt is usually closed and is used together with nut, plain cushion, spring washer assembling, spring pad
Circle reaches the anti-loosing effect of bolt.It being needed for some equipment in the bolt assembly often dismantled, the performance of spring washer reduces,
The anti-loosing effect of fastener is not achieved, if in the larger equipment of vibratility, bolt easily comes off, and thus needs often more
Spring washer is changed, adds maintenance cost.
Utility model content
The utility model is easy to use mainly solving the technical problems that provide a kind of anti-drop bolt component, improves
The anti-dropout effect of bolt.
In order to solve the above technical problems, the technical solution that the utility model uses is：A kind of anti-drop bolt is provided
Component, including：Hexagonal bolt head and screw rod, the screw rod are arranged on one end of hexagonal bolt head, and the screw rod is away from hexagonal spiral shell
The first end indent of bolt is provided with blind hole, and the blind-hole bottom indent is provided with threaded hole, and the threaded hole inside spin is provided with short
Screw rod, the short screw are provided with cone away from threaded hole one end, and described cone one end has been arranged concentrically transition round bar, institute
It states and small hexagonal bolt head has been arranged concentrically on round bar, the small hex bolts cephalic par indent is provided with the first hexagonal indentations,
The screw rod is provided with the groove for extending to threaded hole close to blind hole one end indent.
In one preferred embodiment of the utility model, the recess width is 1 ~ 1.5mm.
In one preferred embodiment of the utility model, the cone diameter at butt end is more than blind hole internal diameter.
In one preferred embodiment of the utility model, compression spring is provided on the outside of the transition round bar.
In one preferred embodiment of the utility model, screw rod end rounded corner.
In one preferred embodiment of the utility model, the hexagonal bolt head is provided with second away from screw rod one end indent
Hexagonal indentations.
The beneficial effects of the utility model are：A kind of anti-drop bolt component that the utility model is pointed out, passes through short screw
It rotating, cone is pulled into blind hole, cone moves inward extruding and screw rod end diameter is supportted greatly, prevents bolt falling,
Improve the anti-dropout effect of bolt.
Description of the drawings
It is required in being described below to embodiment in order to illustrate more clearly of the technical scheme in the embodiment of the utility model
Attached drawing to be used is briefly described, it should be apparent that, the accompanying drawings in the following description is only some realities of the utility model
Example is applied, it for those of ordinary skill in the art, without creative efforts, can also be according to these attached drawings
Other attached drawings are obtained, wherein：
Fig. 1 is a kind of structure diagram of one preferred embodiment of anti-drop bolt component of the utility model；
Fig. 2 is the line A-A sectional view of Fig. 1.
Specific embodiment
Below by the technical scheme in the utility model embodiment is clearly and completely described, it is clear that described
Embodiment is only the part of the embodiment of the utility model, instead of all the embodiments.Based on the implementation in the utility model
Example, all other embodiment that those of ordinary skill in the art are obtained without making creative work belong to
The scope of the utility model protection.
~ 2 are please referred to Fig.1, the utility model embodiment includes：
A kind of anti-drop bolt component, including：Hexagonal bolt head 1 and screw rod 2, the screw rod 2 are arranged on hexagonal bolt head 1
One end, the screw rod 2 is provided with blind hole 3 away from 1 one end indent of hexagonal bolt head, and the 3 bottom indent of blind hole is provided with spiral shell
Pit 4,4 inside spin of threaded hole are provided with short screw 5, and the short screw 5 is provided with cone 6 away from 4 one end of threaded hole,
6 diameter at butt end of cone is more than 3 internal diameter of blind hole, and described 6 one end of cone has been arranged concentrically transition round bar 7, the round bar 7
On be arranged concentrically small hexagonal bolt head 8, the small 8 end indent of hexagonal bolt head is provided with the first hexagonal indentations 9, convenient
It is pulled using outer-hexagonal or allen wrench fastens, easy to use, the screw rod 2 is provided with close to 3 one end indent of blind hole and extends to
The groove 10 of threaded hole, 10 width of groove is 1 ~ 1.5mm, easy to process；After screw rod 2 is threaded through by fastener, use
Spanner rotates small hexagonal bolt head 8, and cone 6 is made to enter in blind hole 3, so as to support big 2 end outer diameter of screw rod, prevents screw rod 2 from existing
It is loosened in fastener, improves locking effect.
7 outside of transition round bar is provided with compression spring 11, prevents small hexagonal bolt head 8 from producing relative rotation, enhances
Anti-loosing effect.
The 2 end rounded corner 12 of screw rod, facilitates screw rod 2 to screw in the threaded hole by fastener.
The hexagonal bolt head 1 is provided with the second hexagonal indentations 13, outer-hexagonal easy to use away from 2 one end indent of screw rod
Spanner or allen wrench carry out fastening work.
In conclusion a kind of anti-drop bolt component that the utility model is pointed out, easy to use, the anticreep of bolt is improved
Fall effect.
The above description is only the embodiments of the present invention, and it does not limit the scope of the patent of the present invention, every
The equivalent structure or equivalent flow shift made using the utility model description is directly or indirectly used in other phases
The technical field of pass, is equally included in the patent within the scope of the utility model.
Claims (6)
1. a kind of anti-drop bolt component, including：Hexagonal bolt head and screw rod, the screw rod are arranged on the one of hexagonal bolt head
End, which is characterized in that the screw rod is provided with blind hole away from hexagonal bolt head one end indent, and the blind-hole bottom indent is provided with
Threaded hole, the threaded hole inside spin are provided with short screw, and the short screw is provided with cone away from threaded hole one end, described
Cone one end has been arranged concentrically transition round bar, and small hexagonal bolt head, the small hex bolts have been arranged concentrically on the round bar
Cephalic par indent is provided with the first hexagonal indentations, and the screw rod is provided with close to blind hole one end indent and extends to the recessed of threaded hole
Slot.
2. anti-drop bolt component according to claim 1, which is characterized in that the recess width is 1 ~ 1.5mm.
3. anti-drop bolt component according to claim 1, which is characterized in that the cone diameter at butt end is more than blind hole
Internal diameter.
4. anti-drop bolt component according to claim 1, which is characterized in that be provided with compression on the outside of the transition round bar
Spring.
5. anti-drop bolt component according to claim 1, which is characterized in that screw rod end rounded corner.
6. anti-drop bolt component according to claim 1, which is characterized in that the hexagonal bolt head is away from screw rod one end
Indent is provided with the second hexagonal indentations.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721598943.4U CN207454481U (en) | 2017-11-27 | 2017-11-27 | A kind of anti-drop bolt component |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721598943.4U CN207454481U (en) | 2017-11-27 | 2017-11-27 | A kind of anti-drop bolt component |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN207454481U true CN207454481U (en) | 2018-06-05 |
Family
ID=62277093
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201721598943.4U Expired - Fee Related CN207454481U (en) | 2017-11-27 | 2017-11-27 | A kind of anti-drop bolt component |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN207454481U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108533603A (en) * | 2018-06-26 | 2018-09-14 | 周焱春 | A kind of self-locking screw |
| CN108612727A (en) * | 2018-06-20 | 2018-10-02 | 海盐东盛紧固件制造有限公司 | A kind of anti-loose installation bolt |
-
2017
- 2017-11-27 CN CN201721598943.4U patent/CN207454481U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108612727A (en) * | 2018-06-20 | 2018-10-02 | 海盐东盛紧固件制造有限公司 | A kind of anti-loose installation bolt |
| CN108533603A (en) * | 2018-06-26 | 2018-09-14 | 周焱春 | A kind of self-locking screw |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| 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: 20180605 Termination date: 20191127 |