CN2069503U - Keyway lock nut - Google Patents
Keyway lock nut Download PDFInfo
- Publication number
- CN2069503U CN2069503U CN 90201702 CN90201702U CN2069503U CN 2069503 U CN2069503 U CN 2069503U CN 90201702 CN90201702 CN 90201702 CN 90201702 U CN90201702 U CN 90201702U CN 2069503 U CN2069503 U CN 2069503U
- Authority
- CN
- China
- Prior art keywords
- keyway
- lock nut
- nut
- keyway lock
- locking nut
- 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.)
- Withdrawn
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- Bolts, Nuts, And Washers (AREA)
Abstract
The utility model relates to a keyway lock nut which belongs to the technical field of nut locking of the fixing member of the mechanical engineering, having the functions of locking and no detaching. A keyway is designed and manufactured on the longitudinal position of the screw thread of the keyway lock nut. The keyway lock nut is screwed on a threaded rod, and a key pin is punched into the keyway of the keyway lock nut. Simultaneously, the longitudinal screw thread of the threaded rod is destroyed by a key edge to achieve the purposes of no detaching and no loosening of the keyway lock nut. The keyway lock nut has the advantages of simple structure, easy manufacturing, convenient installation and operation and good effect of theft protection of the fixed equipment.
Description
The keyway locking nut belongs to the lock-in techniques field of nut in the mechanical engineering fixed component.
At present, power transmission and transformation line and electric power facility are the mounting equipment of removable component, and therefore stolen phenomenon is of common occurrence, bring great threat for the normal electricity safe operation, have also caused unnecessary heavy losses to national wealth.For preventing that equipment is disassembled the component that also do not have special use and can supplies to adopt.The lock-in techniques of nut is through the Searches of Patent Literature in the relevant fixed component, in application number is 88201152 " locking device of nut ", has adopted anti-loosing slice, and prevented that the loosening stop tab of anti-loosing slice is inserted in the groove of bolt, though the nut in this device can be locked, but still detachable.
The purpose of keyway locking nut design: once assemble after the keyway locking nut, this locking nut is just non-dismountable, can prevent that electric power facility is split, material is stolen.
The screw thread position design of the locking nut in the utility model also is processed with vertical keyway, other is furnished with special-purpose key pin, vertical side of this key pin is processed with the key sword that can destroy longitudinal screw on the screw rod, when equipment installs after the locking nut of screwing on the screw rod, again key pin is squeezed in the keyway of locking nut, when squeezing into key pin, key sword on the key pin has destroyed the longitudinal screw on the screw rod, thereby reaching nut is locked on the screw rod by key pin, make nut under external force, can't withdraw from from screw rod, reach the purpose that to become flexible, prevent that effectively electric power facility is stolen.
The characteristics of keyway locking nut: simple in structure, manufacture easily, easy to install, fixed equipment is effective.
Description of drawings: Fig. 1 locking nut, key pin and combine and assemble figure thereof.
Wherein: locking nut 1, key pin 2, screw rod 3.
The keyway locking nut is installed by following program, earlier with locking nut screwing to screw rod, key pin is squeezed in the keyway of nut with nail hammer again, in the process of squeezing into, the key sword that vertical side of key pin is processed into has destroyed the longitudinal screw on the screw rod, reaches to prevent nut loosening and non-removable purpose.
Claims (1)
1, keyway locking nut is characterized in that it is made up of locking nut 1, key pin 2, and key pin 2 is anchored in vertical keyway processed on the locking nut 1, and vertical side of key pin 2 is processed with the key sword of the longitudinal screw that can destroy on the screw rod 3.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 90201702 CN2069503U (en) | 1990-02-15 | 1990-02-15 | Keyway lock nut |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 90201702 CN2069503U (en) | 1990-02-15 | 1990-02-15 | Keyway lock nut |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2069503U true CN2069503U (en) | 1991-01-16 |
Family
ID=4883266
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 90201702 Withdrawn CN2069503U (en) | 1990-02-15 | 1990-02-15 | Keyway lock nut |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2069503U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102352726A (en) * | 2011-09-30 | 2012-02-15 | 无锡市安迈工程机械有限公司 | Lifting mechanism |
| CN105666217A (en) * | 2016-04-16 | 2016-06-15 | 内蒙古北方重工业集团有限公司 | Hydraulic clamping device for heavy part |
| CN110469575A (en) * | 2019-08-30 | 2019-11-19 | 刘启超 | A kind of screw assembly of never becoming loose |
-
1990
- 1990-02-15 CN CN 90201702 patent/CN2069503U/en not_active Withdrawn
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102352726A (en) * | 2011-09-30 | 2012-02-15 | 无锡市安迈工程机械有限公司 | Lifting mechanism |
| CN105666217A (en) * | 2016-04-16 | 2016-06-15 | 内蒙古北方重工业集团有限公司 | Hydraulic clamping device for heavy part |
| CN110469575A (en) * | 2019-08-30 | 2019-11-19 | 刘启超 | A kind of screw assembly of never becoming loose |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |