CN202597412U - High-rotation-prevention and pushout-prevention screw bolt - Google Patents
High-rotation-prevention and pushout-prevention screw bolt Download PDFInfo
- Publication number
- CN202597412U CN202597412U CN 201220158402 CN201220158402U CN202597412U CN 202597412 U CN202597412 U CN 202597412U CN 201220158402 CN201220158402 CN 201220158402 CN 201220158402 U CN201220158402 U CN 201220158402U CN 202597412 U CN202597412 U CN 202597412U
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- China
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- bolt
- prevention
- key
- screw
- nut
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- Expired - Lifetime
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Abstract
The utility model provides a high-rotation-prevention and pushout-prevention screw bolt, which comprises a screw cap and a bolt body, wherein the periphery of the bolt body is provided with screw threads. The screw bolt is characterized in that a plurality of tooth-shaped uniform teeth in uniform arrangement around the bolt body are arranged under the screw cap, and a groove surrounding the bolt body is also arranged on the bolt body next to the lower part of the uniform teeth. The high-rotation-prevention and pushout-prevention screw bolt has the beneficial effects that an installing tool extrudes the screw cap so that the screw cap is embedded in a plate, the uniform teeth under the screw cap are extruded into the plate, in addition, excessive materials of the plate are extruded into the groove, when the screw nut is rotated, the uniform teeth can prevent the screw bolt from rotating, the groove can realize the filling effect of the excessive materials generated after the screw cap and the uniform teeth are extruded, the plate unevenness caused by the extrusion of the excessive materials on the plate surface is avoided, and the excessive materials can flow into the groove so that the screw bolt has the pushout-prevention capability. A bulge is also arranged under the groove, and a guide effect and the pushout-prevention enhancement capability are realized during installation.
Description
Technical field
The utility model belongs to the used fastener areas of mechanical connection, especially relates to a kind of anti-bolt of releasing function of high anti-rotation that in the nut operation is installed, has.
Background technique
In Course Exercise in Machinery Elements Design, the anti-release of high anti-rotation bolt is a kind of special fastening piece, and according to the needs of installing and using, it is of a great variety, and shape is also had nothing in common with each other.Be difficult to use under the situation of riveting gun at small space or box house space etc., adopt bolts and nuts to cooperate usually and be fastenedly connected operation.Do not rotate in order to satisfy nut installation back bolt; The anti-anti-torque of releasing bolt of high anti-rotation must be greater than the requirement of nut mounting torque; Automatically deviate from because of vibration when working for fear of bolt, require the anti-screw of releasing of high anti-rotation to have certain anti-release power.In order to address the above problem, the present invention provides a kind of high anti-rotation the anti-bolt of releasing.
Summary of the invention
The problem that the utility model will solve provides a kind of in the nut operation is installed, can preventing and self from producing the bolt of rotation and passive release.
For solving the problems of the technologies described above; The technological scheme that the utility model adopts is: the anti-bolt of releasing of a kind of high anti-rotation; Comprise the threaded key of nut and outer periphery; It is characterized in that nut below is provided with around the equal tooth of the equally distributed a plurality of dentations of key, be close on the key of equal tooth below and also be provided with groove around key.
Further, also be provided with convexity on the key of proximate recesses below around key.
Advantage and the good effect that the utlity model has are: owing to adopt technique scheme; Setting tool extruding nut embeds in the sheet material it; Make the equal tooth of its nut below squeeze into sheet material; And the sheet material excess stock is extruded in the groove, and equal tooth can prevent that bolt from producing rotation when the spinning nut, groove can play the filling of the excess stock that nut and equal tooth extruding backs produce; Avoid excess stock to be extruded into plate surface and cause sheet material uneven, make bolt have the anti-ability of releasing after making excess stock flow to groove again.The convexity of groove below plays leading role when mounted and strengthens anti-release ability.
Description of drawings
Fig. 1 is the structural representation of the utility model
Fig. 2 is that sheet material press-fits the schematic representation intention
Fig. 3 is that bolt press-fits the use schematic representation
Fig. 4 is the view that press-fits behind the back rotation set nut that finishes
Among the figure:
1, key 2, convexity 3, groove
4, equal tooth 5, nut 6, press mounting tool
7,9,10, sheet material 11, nut to be connected
Embodiment
As shown in Figure 1; The anti-bolt of releasing of the high anti-rotation of the utility model; Comprise nut 5 and the threaded key 1 of outer periphery, nut 5 belows are provided with around the equal tooth 4 of key 1 equally distributed a plurality of dentations, are close on the key 1 of equal tooth 4 belows and also are provided with the groove 3 around key.
Usually the general employing of the key of bolt is cylindrical, and key can entire body have screw thread, also can be that front end has screw thread; When the top of key front end also is provided with tip, be exactly the pattern of usually said screw, tip helps realizing the self tapping operation.
Nut can be in hexagon head, square toes, T shape head, oval head, socket cap, round end, coiled hair, countersunk head or the countersunk raised head a kind of, but be not limited to above-mentioned these several kinds of patterns.And nut also can be provided with the groove that the setting tool that conveniently uses similar screw-driver and so on makes the different shape of its rotation, such as cross or yi word pattern groove.
Tip also can be provided with screw thread, and the screw thread on the tip can continue with the screw thread of bar portion mutually.
The working procedure of this instance: use press mounting tool that sheet material is pre-installed earlier, promptly under the pressure effect of press mounting tool, bolt is squeezed in the sheet material, and then the key opposite side is exposed the part rotation set nut of sheet material.The equal tooth of nut below also is extruded into plate surface under pressure; The unnecessary material of sheet material also is extruded in the groove of bolt into, like this, has both avoided excess stock to be extruded into plate surface and has caused sheet material uneven; Make bolt possess the ability of anti-release because of excess stock after flowing to groove again; And because agreeing with between equal tooth and the plate surface stoped the passive rotation of bolt, avoided deviating from because of the part that rotation makes key embed connected sheet material originally; Improve operating efficiency, thereby and avoided being fastenedly connected the potential safety hazard that mass defect causes.The convexity around key that groove is provided with at the back plays leading role and the effect that strengthens anti-release ability when mounted.
Need not extra press mounting tool when nut is installed, only need to use the hexagon wrench set screw nut just can realize connecting, realize that promptly single face fixedly mounts, thereby avoided being difficult to use the defective of riveting gun at small space or box house space etc. from single face.
More than the embodiment of the utility model is specified, but said content is merely the preferred embodiment of the utility model, can not be considered to be used to limit the practical range of the utility model.All equalizations of doing according to the utility model application range change and improve etc., all should still belong within the patent covering scope of the utility model.
Claims (5)
1. a high anti-rotation prevents releasing bolt; It is characterized in that: comprise the threaded key of nut and outer periphery; It is characterized in that nut below is provided with around the equal tooth of the equally distributed a plurality of dentations of key, be close on the key of equal tooth below and also be provided with groove around key.
2. bolt according to claim 1 is characterized in that: also be provided with the convexity around key on the key of proximate recesses below.
3. bolt according to claim 1 is characterized in that: said nut is a kind of in hexagon head, square toes, T shape head, oval head, socket cap, round end, coiled hair, countersunk head or the countersunk raised head.
4. bolt according to claim 1 is characterized in that: key also is provided with tip at the top of that end that does not link to each other with nut.
5. fastening piece according to claim 4 is characterized in that: said tip is provided with screw thread, and its screw thread continues with the screw thread of key mutually.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220158402 CN202597412U (en) | 2012-04-13 | 2012-04-13 | High-rotation-prevention and pushout-prevention screw bolt |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220158402 CN202597412U (en) | 2012-04-13 | 2012-04-13 | High-rotation-prevention and pushout-prevention screw bolt |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202597412U true CN202597412U (en) | 2012-12-12 |
Family
ID=47314957
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201220158402 Expired - Lifetime CN202597412U (en) | 2012-04-13 | 2012-04-13 | High-rotation-prevention and pushout-prevention screw bolt |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202597412U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106594041A (en) * | 2016-12-19 | 2017-04-26 | 佛山佐尔汽车部件有限公司 | Waterproof and anti-rotation tail door hinge and riveting method |
-
2012
- 2012-04-13 CN CN 201220158402 patent/CN202597412U/en not_active Expired - Lifetime
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106594041A (en) * | 2016-12-19 | 2017-04-26 | 佛山佐尔汽车部件有限公司 | Waterproof and anti-rotation tail door hinge and riveting method |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CP01 | Change in the name or title of a patent holder |
Address after: 300300 Tianjin Huaming Industrial Park in Dongli Binhai District headquarters B06 Patentee after: Aerospace Precision Products Co., Ltd. Address before: 300300 Tianjin Huaming Industrial Park in Dongli Binhai District headquarters B06 Patentee before: Aerospace Fine Co., Ltd. |
|
| CP01 | Change in the name or title of a patent holder | ||
| CX01 | Expiry of patent term |
Granted publication date: 20121212 |
|
| CX01 | Expiry of patent term |