CN203051438U - Anti-loose screw - Google Patents
Anti-loose screw Download PDFInfo
- Publication number
- CN203051438U CN203051438U CN 201220521218 CN201220521218U CN203051438U CN 203051438 U CN203051438 U CN 203051438U CN 201220521218 CN201220521218 CN 201220521218 CN 201220521218 U CN201220521218 U CN 201220521218U CN 203051438 U CN203051438 U CN 203051438U
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- CN
- China
- Prior art keywords
- screw
- loose
- screw rod
- host cavity
- utility
- 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 discloses an anti-loose screw, comprising a screw cap and a lengthwise screw rod extending out of the screw cap, wherein the screw rod is internally provided with a containing cavity extending along the lengthwise direction; the containing cavity is internally provided with an elastic part applying elastic force on the side surface of the containing cavity; under the action of the elastic force, the screw rod part at the periphery of the elastic part generates expansion and deformation outwards, and then the screw and a fixed part generate larger friction force, so that the anti-loose purpose of the screw is achieved; and the anti-loose screw disclosed by the utility model is simple in structure and good in anti-loose effect.
Description
Technical field
The utility model relates to a kind of screw, especially a kind of screw with improvement structure.
Background technique
Along with industrialized development, screw is also constantly improving and refinement.The mechanical parts of some small spaces not only need screw to connect but also can not take too many space.When screw connects, prevent that traditionally the method for screw loosening from having measures such as the spring washer of increasing, injection screw thread glue, but himself narrow limitation and shortcoming are arranged.Use spring washer will increase the height of screw head, in needing the small space of plane motion, will make the collision of screw head and another part.Use screw thread glue to prevent that screw loosening from will make screw can't change or be difficult to and changing the maintenance of unfavorable equipment and maintenance.
So, need a kind of new technological scheme to address the above problem.
The model utility content
The purpose of this utility model is the deficiency that exists at prior art, and a kind of simple in structure and anti-loose effective anti-loose screw is provided.
For achieving the above object, the anti-loose screw of the utility model can adopt following technological scheme:
A kind of anti-loose screw comprises that nut reaches the screw rod from the extended lengthwise of nut; Be provided with the host cavity that extends along longitudinal direction in the described screw rod, be provided with the elastic component that applies elastic force to the host cavity side in the described host cavity, the outside of described screw rod is from being provided with some flutings outside to inside, and described fluting is communicated with host cavity.
Compare with background technique, the anti-loose screw of the utility model makes the screw portion on every side of elastic component outwards produce dilatancy under the effect of elastic force, make screw and the part that is fixed produce bigger frictional force, reach the purpose that screw check takes off, this anti-loose bolt structure is simple, loosen take off effective.
Description of drawings
Fig. 1 is the plan view of the anti-loose screw of the utility model.
Fig. 2 is the generalized section of the anti-loose screw of the utility model.
Embodiment
Below in conjunction with the drawings and specific embodiments, further illustrate the utility model, should understand these embodiments only is used for explanation the utility model and is not used in restriction scope of the present utility model, after having read the utility model, those skilled in the art all fall within the application's claims institute restricted portion to the modification of the various equivalent form of values of the present utility model.
See also Fig. 1 to shown in Figure 2, the utility model discloses a kind of anti-loose screw 100, comprises the screw rod 22 that nut 21 reaches from nut 21 extended lengthwises.Be provided with the host cavity 23 that extends along longitudinal direction in the described screw rod 22.Be provided with the elastic component 24 that applies elastic force to host cavity 23 sides in the described host cavity 23, the outside of described screw rod 22 is from being provided with some flutings 25 outside to inside, described fluting 25 is communicated with host cavity 23, described fluting 25 extends along screw rod 22 bearing of trends, and described screw rod 22 and host cavity 23 are near nut 21 1 ends.Described fluting 25 is four, and is arranged at the outside of described screw rod 22 uniformly.In the present embodiment, described elastic component 24 is plane scroll spring, and the external diameter of this plane scroll spring is greater than the footpath, chamber of described host cavity 23.Like this elastic force that in host cavity 23, applies to the side of elastic component 24 make under can the effect in elastic force because the existence of fluting 25 is arranged elastic component 24 around screw portion outwards produce dilatancy, make screw and the part that is fixed produce bigger frictional force, reach the purpose that screw check takes off.
The anti-loose screw advantage of the utility model is: the first, make the bolt structure compactness, and reduced auxiliary locking parts such as spring washer.The second, processing is simple, and screw punching fluting and embedding spiral spring are conventional processing technology, realize large-scale mass production easily.The 3rd, because the elastic force of spiral spring makes circumferential screw produce dilatancy, friction area is compared traditional spring washer and is increased a lot, makes anti-loose better effects if.The 4th, owing to cancelled spring washer, make screw profile concision and compact more, beautiful shape.
Claims (4)
1. an anti-loose screw comprises that nut reaches the screw rod from the extended lengthwise of nut; It is characterized in that: be provided with the host cavity that extends along longitudinal direction in the described screw rod, be provided with the elastic component that applies elastic force to the host cavity side in the described host cavity, the outside of described screw rod is from being provided with some flutings outside to inside, and described fluting is communicated with host cavity.
2. anti-loose screw according to claim 1, it is characterized in that: described elastic component is plane scroll spring, and the external diameter of this plane scroll spring is greater than the footpath, chamber of described host cavity.
3. anti-loose screw according to claim 2 is characterized in that: described fluting extends along the screw rod bearing of trend, and described screw rod and host cavity are near nut one end.
4. anti-loose screw according to claim 1, it is characterized in that: described fluting is four, and is arranged at the outside of described screw rod uniformly.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220521218 CN203051438U (en) | 2012-10-11 | 2012-10-11 | Anti-loose screw |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220521218 CN203051438U (en) | 2012-10-11 | 2012-10-11 | Anti-loose screw |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203051438U true CN203051438U (en) | 2013-07-10 |
Family
ID=48734396
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201220521218 Expired - Lifetime CN203051438U (en) | 2012-10-11 | 2012-10-11 | Anti-loose screw |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203051438U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103470604A (en) * | 2013-09-27 | 2013-12-25 | 攀枝花学院 | Anti-loosening and anti-slip screw bolt structure |
| CN108591231A (en) * | 2018-05-14 | 2018-09-28 | 王栋树 | A kind of anti-skidding Leave out thread and connection component |
| CN109114089A (en) * | 2018-10-24 | 2019-01-01 | 浙江润锦汽车科技有限公司 | A kind of gearbox bolt |
-
2012
- 2012-10-11 CN CN 201220521218 patent/CN203051438U/en not_active Expired - Lifetime
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103470604A (en) * | 2013-09-27 | 2013-12-25 | 攀枝花学院 | Anti-loosening and anti-slip screw bolt structure |
| CN103470604B (en) * | 2013-09-27 | 2015-08-26 | 攀枝花学院 | A kind of bolt arrangement of locking antiskid |
| CN108591231A (en) * | 2018-05-14 | 2018-09-28 | 王栋树 | A kind of anti-skidding Leave out thread and connection component |
| CN109114089A (en) * | 2018-10-24 | 2019-01-01 | 浙江润锦汽车科技有限公司 | A kind of gearbox bolt |
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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: 20130710 |