CN202531579U - One-time setscrew with lock - Google Patents
One-time setscrew with lock Download PDFInfo
- Publication number
- CN202531579U CN202531579U CN2012202263239U CN201220226323U CN202531579U CN 202531579 U CN202531579 U CN 202531579U CN 2012202263239 U CN2012202263239 U CN 2012202263239U CN 201220226323 U CN201220226323 U CN 201220226323U CN 202531579 U CN202531579 U CN 202531579U
- Authority
- CN
- China
- Prior art keywords
- lock
- nut
- screw
- setscrew
- pin
- 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 a one-time setscrew with a lock. The one-time setscrew with the lock comprises a screw, an expansion pipe and a nut. A thread part of the screw is provided with a key groove, a locking nut is further sleeved on the screw at the back of the nut, and an identical key groove is arranged in an inner hole of the locking nut. In a fixed installing state of the setscrew, the position of the key groove of the screw is aligned with the position of the key groove of the locking nut, a lock pin is arranged in the two key grooves, and the length of the lock pin is not larger than that of the locking nut. After the setscrew is fixedly installed, the locking nut is arranged on the screw through the lock pin and cannot rotate, the nut is stopped, and illegal dismantling is avoided.
Description
Technical field
The utility model relates to fastening piece, particularly to the improvement of setscrew.
Background technique
Existing iron setscrew is made up of screw, expansion tube, nut, and during locking nut, the cone expansion head on the screw terminal opens expansion tube, is squeezed in to form in the hole to fix.When on Anti-theft door and window, using, dismantle in order to prevent the thief, general now the employing welded dead way with nut, not only increased working procedure, and brought a lot of troubles.
The model utility content
After being to provide a kind of screw fastening, the utility model purpose need not welding with regard to non-removable setscrew, to realize the antitheft purpose.
The scheme of the utility model is: disposable setscrew with lock, comprise screw, expansion tube, nut, and open on the helical thread portion of screw and be shaped on keyway; On screw, the back of nut also is with lock-nut, opens in the lock-nut endoporus to be shaped on same keyway; Under setscrew installs and fixes state; The keyway position of screw and lock-nut is involutory, and pin has a lock pin in two keyways, and the length of lock pin is not more than the length of lock-nut.
Said lock-nut is ganoid cylinder type.
The utility model has the advantages that: after setscrew installed and fixed, lock-nut was not rotatable on screw by the lock pin pin, blocks nut, has stopped illegal dismounting.
Description of drawings
Combine embodiment that the utility model is described further according to accompanying drawing below.
Accompanying drawing is the structural representation of the utility model.
1 screw among the figure, 2 expansion tubes, 3 pads, 4 nuts, 5 lock-nuts, 6 lock pins.
Embodiment
Referring to accompanying drawing, embodiment's with lock disposable setscrew comprises screw 1, expansion tube 2, nut 4, and behind the nut screwing clamping, the cone expansion head on the screw terminal opens expansion tube, and this is identical with existing setscrew.
Open on the helical thread portion of screw 1 and be shaped on keyway.
Lock-nut 5 is enclosed within on the screw 1, is positioned at the back of nut 4, open in lock-nut 5 endoporus be shaped on screw 1 on same keyway.
During use, after setscrew installs and fixes, rotate lock-nut 5, make the keyway position of its keyway and screw 1 involutory, pin is gone into a lock pin 6 in two keyways, makes lock-nut 5 pin and can't rotate.
In order to prevent that lock pin is removed, the length of lock pin 6 is less than or equal to the length of lock-nut 5.
Destroy in order to prevent firmly to rotate, lock-nut 5 is ganoid cylinder type.
Claims (2)
1. disposable setscrew with lock comprises screw (1), expansion tube (2), nut (4), it is characterized in that: open on the helical thread portion of screw (1) and be shaped on keyway; On screw (1), the back of nut (4) also is with lock-nut (5), opens in lock-nut (5) endoporus and is shaped on same keyway; Under setscrew installs and fixes state; The keyway position of screw (1) and lock-nut (5) is involutory, and pin has a lock pin (6) in two keyways, and the length of lock pin (6) is not more than the length of lock-nut (5).
2. disposable setscrew with lock as claimed in claim 1 is characterized in that: said lock-nut (5) is ganoid cylinder type.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012202263239U CN202531579U (en) | 2012-05-14 | 2012-05-14 | One-time setscrew with lock |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012202263239U CN202531579U (en) | 2012-05-14 | 2012-05-14 | One-time setscrew with lock |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202531579U true CN202531579U (en) | 2012-11-14 |
Family
ID=47132768
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2012202263239U Expired - Fee Related CN202531579U (en) | 2012-05-14 | 2012-05-14 | One-time setscrew with lock |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202531579U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111911507A (en) * | 2020-07-13 | 2020-11-10 | 航天科工空间工程发展有限公司 | Adjustable positioning pin device |
-
2012
- 2012-05-14 CN CN2012202263239U patent/CN202531579U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111911507A (en) * | 2020-07-13 | 2020-11-10 | 航天科工空间工程发展有限公司 | Adjustable positioning pin device |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20121114 Termination date: 20130514 |