CN2057485U - Reliable bolt and nut for preventing loosening and rotation - Google Patents
Reliable bolt and nut for preventing loosening and rotation Download PDFInfo
- Publication number
- CN2057485U CN2057485U CN 89216885 CN89216885U CN2057485U CN 2057485 U CN2057485 U CN 2057485U CN 89216885 CN89216885 CN 89216885 CN 89216885 U CN89216885 U CN 89216885U CN 2057485 U CN2057485 U CN 2057485U
- Authority
- CN
- China
- Prior art keywords
- nut
- rotation
- preventing loosening
- screw rod
- original
- 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.)
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Abstract
The utility model relates to a reliable bolt and nut for preventing loosening and rotation, characterized in that a screw rod preventing loosening and rotation, whose diameter is smaller than the diameter of an original screw rod end and which has opposite-direction screw threads, is arranged. One nut preventing loosening and rotation whose turning direction is opposite to an original nut is allocated on the screw rod preventing loosening and rotation. The nut preventing loosening and rotation is tightly pressed on the original nut, which generates a certain static friction. When a machinery frequently moves or severely vibrate, the original nut is reversely loosened and rotated, and the reverse loosening and rotating of the original nut can make nut preventing loosening and rotation screwed tightly forward. Two nuts are of equal stress size, and reverse directions, and the two nuts are mutually balanced out, and as a result the tightly fixed original screw and the original nut are reliably prevented from freely loosened and rotated.
Description
The utility model relates to a kind of improved screw rod and nut match equipment, particularly a kind of reliable preventing loosening and rotation bolt and nut that can make bolt and nut after fastening prevent from freely to take off commentaries on classics.
Fastening cover one circle open loop elasticity nest plate in screw rod of existing various mechanical parts screws one or two nut then in the screw rod of this single hand of spiral; But the fastening machines part under the occasion that machinery takes regular exercise or fierceness is vibrated, is easy to make screw rod and nut freely to take off commentaries on classics in this way, causes mechanical failure, even causes major accident, causes very big loss.
Task of the present utility model provides a kind of improved screw rod and nut match equipment, and it can prevent reliably that fastening bolt and nut from can freely not take off commentaries on classics.
Fig. 1 is the utility model structural representation.
Task of the present utility model is to be done in such a manner: shown in Figure 1, former screw rod (2) end has one section littler than former screw rod (2) diameter and hand of spiral is opposite preventing loosening and rotation screw rod (5); After former nut (3) is fastening with machine components (1), join a preventing loosening and rotation nut (4) with former nut (3) switched in opposite at preventing loosening and rotation screw rod (5), the preventing loosening and rotation nut (4) that screwhole diameter is littler is pressed on the bigger former nut (3) of screwhole diameter. After machine components (1) were screwed by former nut (3), fastened machine components (1) produced a kind of anti-fastening elastic force to former nut (3), and this elastic force makes former nut (3) will oppositely take off the trend of turning to; But because preventing loosening and rotation screw rod (5) is opposite with the hand of spiral of former screw rod (2), preventing loosening and rotation nut (4) turns to also opposite with former nut (3), and preventing loosening and rotation nut (4) is pressed on the certain stiction of the upper generation of former nut (3), former nut (3) will oppositely take off the change of team makes preventing loosening and rotation nut (4) want forward to screw, two nut active forces and reaction force equal and opposite in direction, opposite direction, cancel each other, thereby preventing reliably that fastening former screw rod (2) and former nut (3) from can freely not take off turns to.
The utility model is adapted to the fastening of various mechanical parts, and application area is extremely wide, reliable, safety, and its concrete structure is provided by following examples and accompanying drawing thereof.
The length of former screw rod (2) is slightly shorter than the height sum that the thickness of fastened part (1) adds former nut (3), and preventing loosening and rotation nut (4) is pressed on and just can run into former screw rod (2) on the former nut (3) like this; Preventing loosening and rotation screw rod (5) is connected on former screw rod (2) end and becomes one, and it is opposite with the hand of spiral of former screw rod (2), and diameter passes preventing loosening and rotation screw rod (5) than the little former nut (3) that just can make of former screw rod (2); Its pitch is less than or equals the pitch of former screw rod (2), could increase the reliability of preventing loosening and rotation.Former nut (3) will be done higherly, with the surface of contact of increase with former screw rod (2); Preventing loosening and rotation nut (4) will be done more coarsely with former nut (3) surface of contact, to increase stiction between the two.
Claims (1)
1, a kind of reliable preventing loosening and rotation bolt and nut, comprise former screw rod (2) and former nut (3), it is characterized in that former screw rod (2) is terminal also has one section littler than former screw rod (2) diameter and hand of spiral is opposite preventing loosening and rotation screw rod (5), joins a preventing loosening and rotation nut (4) with former nut (3) switched in opposite on the preventing loosening and rotation screw rod (5).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 89216885 CN2057485U (en) | 1989-09-07 | 1989-09-07 | Reliable bolt and nut for preventing loosening and rotation |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 89216885 CN2057485U (en) | 1989-09-07 | 1989-09-07 | Reliable bolt and nut for preventing loosening and rotation |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2057485U true CN2057485U (en) | 1990-05-23 |
Family
ID=4872247
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 89216885 Withdrawn CN2057485U (en) | 1989-09-07 | 1989-09-07 | Reliable bolt and nut for preventing loosening and rotation |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2057485U (en) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2009024093A1 (en) * | 2007-08-21 | 2009-02-26 | Beijing 3-D Spinal Orthopedics S & T Co. Ltd | A lockable and antirust bolt fastener |
| CN105020236A (en) * | 2015-07-23 | 2015-11-04 | 安徽美芝制冷设备有限公司 | Screw for compressor, compressor and refrigerator |
| CN106837977A (en) * | 2017-02-21 | 2017-06-13 | 宝鸡石油机械有限责任公司 | Double nuts structure with automatic loose proof function |
| CN114001082A (en) * | 2021-11-11 | 2022-02-01 | 嘉兴紫云精密科技股份有限公司 | Hexagonal flange large-specification external member locking nut |
| CN114341448A (en) * | 2019-07-02 | 2022-04-12 | J·J·梅利克 | Scaffold tube clamp |
-
1989
- 1989-09-07 CN CN 89216885 patent/CN2057485U/en not_active Withdrawn
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2009024093A1 (en) * | 2007-08-21 | 2009-02-26 | Beijing 3-D Spinal Orthopedics S & T Co. Ltd | A lockable and antirust bolt fastener |
| CN105020236A (en) * | 2015-07-23 | 2015-11-04 | 安徽美芝制冷设备有限公司 | Screw for compressor, compressor and refrigerator |
| CN106837977A (en) * | 2017-02-21 | 2017-06-13 | 宝鸡石油机械有限责任公司 | Double nuts structure with automatic loose proof function |
| CN114341448A (en) * | 2019-07-02 | 2022-04-12 | J·J·梅利克 | Scaffold tube clamp |
| US11959292B2 (en) | 2019-07-02 | 2024-04-16 | Jonathan Jonny Melic | Scaffolding tube clamp |
| CN114001082A (en) * | 2021-11-11 | 2022-02-01 | 嘉兴紫云精密科技股份有限公司 | Hexagonal flange large-specification external member locking nut |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C19 | Lapse of patent right due to non-payment of the annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |