CN202991800U - Tooth-variable anti-loose thread - Google Patents
Tooth-variable anti-loose thread Download PDFInfo
- Publication number
- CN202991800U CN202991800U CN 201220613999 CN201220613999U CN202991800U CN 202991800 U CN202991800 U CN 202991800U CN 201220613999 CN201220613999 CN 201220613999 CN 201220613999 U CN201220613999 U CN 201220613999U CN 202991800 U CN202991800 U CN 202991800U
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- CN
- China
- Prior art keywords
- thread
- tooth
- thread body
- screw thread
- loose
- 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 relates to the technical field of machineries, in particular to a tooth-variable anti-loose thread. The tooth-variable anti-loose thread comprises a thread body, wherein a wedge-shaped inclined plane is arranged at the position of a tooth bottom of the thread body, and an angle between the wedge-shaped inclined plane and a reverse extension cord of a lower surface of the thread body is 30 degrees. The standard of the thread body is M33*1.5mm or M55 * 1.5mm or M60 * 1.5mm. Compared with the prior art, the wedge-shaped inclined plane with the angle of 30 degrees is added at the tooth bottom of the thread body to enable a large tight locking force to be produced when an outer thread and the thread body are screwed down mutually. By the adoption of the thread standard of M33* 1.5mm or M55 * 1.5mm or M60 * 1.5mm, the tooth-variable anti-loose thread is enabled to be matched with the outer thread with the standard of M33 * the 1.5mm or M55 * 1.5mm or M60 * 1.5mm, and the tight locking force of thread connection is further improved, so that the thread connection of axle connecting and fastening parts of a heavy truck, a middle truck, a light truck and a motor bus are prevented from having the problem of being loose.
Description
Technical field
The utility model relates to field of mechanical technique, specifically a kind of variable-tooth type checknut.
Background technique
At present, checknut is M39 in the maximum specification of People's Republic of China's machinery industry standard.But along with the development of car industry, more and more higher to the requirement of fastening parts of automobiles, the coupling mechanism force that standard thread connects is not enough, thereby causes heavily blocking, middle card, gently the vehicle bridge of card and motor bus connects being threaded of fastening position and easily occurs loosening.Therefore, design is a kind of can be vital with the variable-tooth type checknut of large specification outside thread coupling.
Summary of the invention
The purpose of this utility model is to overcome the deficiencies in the prior art, provide a kind of can with the variable-tooth type checknut of large specification outside thread coupling.
In order to achieve the above object, the utility model has designed a kind of variable-tooth type checknut, comprise the screw thread body, it is characterized in that: the tooth bottom of screw thread body is provided with a wedge shape inclined-plane, angle between described wedge shape inclined-plane and described screw thread body lower plane reverse extending line is 30 °, and the specification of described screw thread body is M33 * 1.5mm or M55 * 1.5mm or M60 * 1.5mm.
Angle between described screw thread body lower plane and upper plane is 60 °.
The utility model is compared with prior art, sets up the wedge shape inclined-plane of 30 ° in screw thread body tooth bottom, when outside thread and screw thread body are tightened mutually, produces very large coupling mechanism force; Adopt the screw thread specification of M33 * 1.5mm or M55 * 1.5mm or M60 * 1.5mm, making the utility model can be the outside thread coupling of M33 * 1.5mm or M55 * 1.5mm or M60 * 1.5mm with specification, further improve the coupling mechanism force that is threaded, thereby avoided heavy card, middle card, gently the vehicle bridge of card and motor bus connects being threaded of fastening position and the problem become flexible occurs.
Description of drawings
Fig. 1 is structural representation of the present utility model.
Referring to Fig. 1,1 is the screw thread body; 2 is the wedge shape inclined-plane.
Embodiment
Now by reference to the accompanying drawings the utility model is described further.
Referring to Fig. 1, the utility model has designed a kind of variable-tooth type checknut, comprises the screw thread body.The tooth bottom of screw thread body 1 is provided with a wedge shape inclined-plane 2, and the angle between wedge shape inclined-plane 2 and screw thread body 1 lower plane reverse extending line is 30 °, and the angle between screw thread body 1 lower plane and upper plane is 60 °.The specification of screw thread body 1 is M33 * 1.5mm or M55 * 1.5mm or M60 * 1.5mm.
The utility model and specification are the outside thread coupling of M33 * 1.5mm or M55 * 1.5mm or M60 * 1.5mm, and externally threaded tolerance is more than 6g.
When the utility model was screwed into screw thread body 1 at outside thread, externally threaded cusp withstood on the wedge shape inclined-plane 2 of screw thread body 1, produces very large coupling mechanism force, had reached to prevent the loosening purpose that is threaded.
The utility model is set up the wedge shape inclined-plane 2 of 30 ° in screw thread body 1 tooth bottom, when outside thread and screw thread body 1 are tightened mutually, produce very large coupling mechanism force; Screw thread body 1 adopts the screw thread specification of M33 * 1.5mm or M55 * 1.5mm or M60 * 1.5mm, making the utility model can be the outside thread coupling of M33 * 1.5mm or M55 * 1.5mm or M60 * 1.5mm with specification, further improve the coupling mechanism force that is threaded, thereby avoided heavy card, middle card, gently the vehicle bridge of card and motor bus connects being threaded of fastening position and the problem become flexible occurs.
Claims (2)
1. variable-tooth type checknut, comprise the screw thread body, it is characterized in that: the tooth bottom of screw thread body (1) is provided with a wedge shape inclined-plane (2), angle between described wedge shape inclined-plane (2) and described screw thread body (1) lower plane reverse extending line is 30 °, and the specification of described screw thread body (1) is M33 * 1.5mm or M55 * 1.5mm or M60 * 1.5mm.
2. a kind of variable-tooth type checknut according to claim 1, it is characterized in that: the angle between described screw thread body (1) lower plane and upper plane is 60 °.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220613999 CN202991800U (en) | 2012-11-19 | 2012-11-19 | Tooth-variable anti-loose thread |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220613999 CN202991800U (en) | 2012-11-19 | 2012-11-19 | Tooth-variable anti-loose thread |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202991800U true CN202991800U (en) | 2013-06-12 |
Family
ID=48562984
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201220613999 Expired - Fee Related CN202991800U (en) | 2012-11-19 | 2012-11-19 | Tooth-variable anti-loose thread |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202991800U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105485140A (en) * | 2016-01-18 | 2016-04-13 | 霍永久 | R-shaped thread |
| US10920817B2 (en) | 2016-04-29 | 2021-02-16 | Infastech Intellectual Properties Pte. Ltd. | Anti-vibration thread form |
-
2012
- 2012-11-19 CN CN 201220613999 patent/CN202991800U/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105485140A (en) * | 2016-01-18 | 2016-04-13 | 霍永久 | R-shaped thread |
| US9945412B2 (en) | 2016-01-18 | 2018-04-17 | Dongguan Guanhong Hardware Technology Co., Ltd. | R-type thread |
| US10920817B2 (en) | 2016-04-29 | 2021-02-16 | Infastech Intellectual Properties Pte. Ltd. | Anti-vibration thread form |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CB03 | Change of inventor or designer information |
Inventor after: Xu Tong Inventor before: Sun Qiang Inventor before: Xu Tong |
|
| CB03 | Change of inventor or designer information | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20130612 Termination date: 20191119 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |