CN201636187U - Novel anti-loosing bolt - Google Patents
Novel anti-loosing bolt Download PDFInfo
- Publication number
- CN201636187U CN201636187U CN2010201114670U CN201020111467U CN201636187U CN 201636187 U CN201636187 U CN 201636187U CN 2010201114670 U CN2010201114670 U CN 2010201114670U CN 201020111467 U CN201020111467 U CN 201020111467U CN 201636187 U CN201636187 U CN 201636187U
- Authority
- CN
- China
- Prior art keywords
- bolt
- novel
- helical teeth
- bolt head
- loosing
- 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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- Mutual Connection Of Rods And Tubes (AREA)
Abstract
The utility model relates to a novel anti-loosing bolt mainly solving the problem of loose connection of the traditional bolt. The anti-loosing bolt is characterized in that convex teeth (3) distributed in circumferential direction are arranged on the lower end surface of a bolt head (1). According to a friction force formula f=mu*Fn, the surface roughness mu is increased due to the convex teeth (3) arranged on the lower end surface of the bolt head (1), the friction force f increases accordingly, and the friction force between the bolt head (1) and the matching surface is enhanced so that the bolt has better fastening performance and better anti-loosing effect.
Description
Technical field
The utility model relates to a kind of fastening piece, is meant novel chek bolt in particular.
Background technique
The bolt connection of using now is made up of bolt, nut, pad, behind the fastening nut, packing ring is made the nut hold-down bolt by the elastic force of being pressed the back to produce, play locking effect, elongated along with service time, whole bolt can produce displacement and make slowly variation of fastening effect, the particularly cooperate degree between bolt head lower end surface and the surface of contact, because thereby frictional force reduces to make anti-loosing effect to reduce when cooperating between them, it is unreliable to use.
The model utility content
In order to overcome the deficiency in the background technique, the utility model provide a kind of fastening performance good can novel chek bolt.
The technological scheme of technical solution problem: a kind of novel chek bolt, comprise bolt head and screw rod, it is characterized in that: be positioned at the double wedge that the bolt head lower end surface is provided with circle distribution.
Described double wedge is a helical teeth.
Described helical teeth tilts towards the rear end at the relative helical teeth of bolt precession direction place.
Described helical teeth is evenly distributed.
The beneficial effects of the utility model are: frictional force f=μ Fn, owing to be provided with double wedge in the lower end surface of bolt head, make surface roughness μ increase, frictional force f will increase thereupon, bolt head and fitting surface frictional force strengthen, thereby make that the fastening performance of bolt is better, locking effect is better.
Description of drawings
Fig. 1 is a structural representation of the present utility model.
Fig. 2 is the enlarged view of looking up of the utility model Fig. 1.
Among the figure, bolt head 1, screw rod 2, double wedge 3.
Embodiment
At accompanying drawing embodiment of the present utility model is described further below:
Shown in figure, a kind of novel chek bolt comprises bolt head 1 and screw rod 2, describedly is positioned at the double wedge 3 that bolt head 1 lower end surface is provided with circle distribution.According to such scheme, frictional force f=μ Fn owing to be provided with double wedge 3 in the lower end surface of bolt head 1, makes surface roughness μ increase, and frictional force f will increase thereupon, and bolt head 1 strengthens with fitting surface frictional force, thereby makes that the fastening performance of bolt is better.
Described in the present embodiment double wedge 3 is a helical teeth.The frictional force that produces with surface of contact is bigger, and locking effect is better.
Described in the present embodiment helical teeth tilts towards the rear end at the relative helical teeth of bolt precession direction place.Owing to rotate along clockwise direction during the bolt precession, it is loosening towards tilting can effectively prevent counterclockwise that bolt from screwing the back that double wedge 3 is set, and makes anti-loosing effect strengthen greatly.
Helical teeth is evenly distributed in the present embodiment.Convenient processing.
The foregoing description should not be considered as restriction of the present utility model, but any improvement of doing based on spirit of the present utility model, all should be within protection domain of the present utility model.
Claims (4)
1. a novel chek bolt comprises bolt head (1) and screw rod (2), it is characterized in that: be positioned at the double wedge (3) that bolt head (1) lower end surface is provided with circle distribution.
2. novel chek bolt according to claim 1 is characterized in that described double wedge (3) is a helical teeth.
3. novel chek bolt according to claim 2 is characterized in that described helical teeth tilts towards the rear end at the relative helical teeth of bolt precession direction place.
4. according to claim 2 or 3 described novel chek bolts, it is characterized in that described helical teeth is evenly distributed.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010201114670U CN201636187U (en) | 2010-02-05 | 2010-02-05 | Novel anti-loosing bolt |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010201114670U CN201636187U (en) | 2010-02-05 | 2010-02-05 | Novel anti-loosing bolt |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201636187U true CN201636187U (en) | 2010-11-17 |
Family
ID=43080680
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2010201114670U Expired - Lifetime CN201636187U (en) | 2010-02-05 | 2010-02-05 | Novel anti-loosing bolt |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201636187U (en) |
-
2010
- 2010-02-05 CN CN2010201114670U patent/CN201636187U/en not_active Expired - Lifetime
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| PE01 | Entry into force of the registration of the contract for pledge of patent right |
Denomination of utility model: Novel anti-loose bolt Effective date of registration: 20171128 Granted publication date: 20101117 Pledgee: Zhejiang Dongtou Wenzhou rural commercial bank Limited by Share Ltd Pledgor: Zhejiang Dite High-Strength Bolt Co.,Ltd. Registration number: 2017330000176 |
|
| PE01 | Entry into force of the registration of the contract for pledge of patent right | ||
| CX01 | Expiry of patent term |
Granted publication date: 20101117 |
|
| CX01 | Expiry of patent term |