CN201074441Y - U-shaped thread anti-theft lock - Google Patents
U-shaped thread anti-theft lock Download PDFInfo
- Publication number
- CN201074441Y CN201074441Y CNU2007200554101U CN200720055410U CN201074441Y CN 201074441 Y CN201074441 Y CN 201074441Y CN U2007200554101 U CNU2007200554101 U CN U2007200554101U CN 200720055410 U CN200720055410 U CN 200720055410U CN 201074441 Y CN201074441 Y CN 201074441Y
- Authority
- CN
- China
- Prior art keywords
- lock
- shaped
- swivel nut
- screw thread
- locking bolt
- 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
Provided is a U-shaped screw theft-proof lock, which includes a U-shaped lock body, a locking bolt piercingly connected with two ends of the U-shaped lock body, a lock liner which is arranged in a lock liner hole positioned at one end of the U-shaped lock body and a threaded sleeve, wherein the threaded sleeve is driven by the core of the lock liner, and the end on which the locking bolt is disposed of the threaded sleeve is provided with screw threads which are left-hand screw threads. Compared with the prior art, the utility model has the advantages that the utility model is capable of prolonging the unlocking time of thieves and is hard to be unlocked by thieves through violent knocking and chiseling.
Description
Technical field:
The utility model relates to a kind of theftproof lock.
Background technology:
Existing U-shaped screw thread theftproof lock by U-shaped lock body, cross-under the locking bolt at U-shaped lock body two ends, be arranged on the U-shaped lock body wherein lock gall and the swivel nut in the end constitute, swivel nut is driven by the lock core of lock gall, that end that locking bolt is connected on the swivel nut is provided with screw thread, and this screw thread is a right-handed thread.During use, locking bolt is inserted in the swivel nut, the lock core by lock gall drives the swivel nut right rotation then, make in the locking bolt screw thread precession swivel nut, thus the action of realization lock.This kind U-shaped screw thread theftproof lock because screw thread is right-handed thread, is identical with the hand of spiral of screw thread commonly used in the life, when the robber unblanks, unblanks according to the custom of daily life, is easy to just locking bolt be spun out from swivel nut; And, because lock gall is enclosed in the lock gall hole of U-shaped lock body end by the internal projecting ring in U-shaped lock body end both sides together with swivel nut, like this, the robber just is easy to by striking cutter U-shaped lock body end both sides, make lock gall break through the internal projecting ring of U-shaped lock body end both sides together with swivel nut, locking bolt struck from the lock gall hole to dig out come, lock is opened.
Summary of the invention:
Goal of the invention of the present utility model be to provide a kind of can prolong robber's uncaging time, be not easy to be struck the U-shaped screw thread theftproof lock of chiseling lock by violence by the robber.
The utility model is to realize like this, comprise U-shaped lock body, cross-under the locking bolt at U-shaped lock body two ends, be arranged on the U-shaped lock body wherein lock gall and the swivel nut in the end lock gall hole constitute, swivel nut is driven by the lock core of lock gall, that end that locking bolt is connected on the swivel nut is provided with screw thread, it is characterized in that this screw thread is a left hand thread.Because adopt and the daily life opposite screw thread of screw thread commonly used, under intense strain was controlled, the robber at first can unblank according to habits and customs, when treating that the robber comes to oneself, has expended a period of time, thereby reduced the probability that the robber opens lock.
Here, come violence to open lock in order to prevent the robber by striking cutter U-shaped lock body end both sides, be provided with internal projecting ring between swivel nut and lock gall in the lock gall hole, the lock gall hole in the swivel nut outside is provided with internal projecting ring.Be subjected in the lock gall hole and the internal projecting ring of side stop that the robber just is not easy to strike by force cutter U-shaped lock body end both sides swivel nut is pounded out in the lock gall hole together with lock gall, thereby promoted the theftproof performance of lock.And because the internal projecting ring in the lock gall hole processes with the lock gall hole is whole, therefore, the firmness of fixedlying connected with the lock gall hole is much more firm than what fix by welding, thereby the ability of the anti-violence damage of lock is greatly improved.
The utility model compared with the prior art, have can prolong robber's uncaging time, be not easy to be struck the advantage of chiseling lock by violence by the robber.
Description of drawings:
Fig. 1 is a structural representation of the present utility model.
The specific embodiment:
Now in conjunction with the accompanying drawings and embodiments utility model is described in further detail:
As shown in the figure, the utility model comprise U-shaped lock body 1, cross-under the locking bolt 2 of U-shaped lock body 1 two ends 1a, be arranged on U-shaped lock body 1 wherein lock gall 4 and the swivel nut 5 in the end 1a lock gall hole 3 constitute, swivel nut 5 is driven by the lock core 4a of lock gall 4, that end 2a that locking bolt 2 is connected on the swivel nut 5 is provided with screw thread 2b, it is characterized in that this screw thread 2b is a left hand thread.4 of swivel nut 5 and lock galls are provided with internal projecting ring 6 in lock gall hole 3, and the lock gall hole 3 in swivel nut 5 outsides is provided with internal projecting ring 7.The locking bolt of U-shaped lock body 1 other end 1a 8 inwalls of boring a hole are provided with guide groove 8a, and the locking bolt 2 of corresponding guide groove 8a is provided with pin 9, and the effect of guide groove 8a, pin 9 is to prevent that locking bolt 2 from rotating.
Claims (2)
1. U-shaped screw thread theftproof lock, comprise U-shaped lock body, cross-under the locking bolt at U-shaped lock body two ends, be arranged on the U-shaped lock body wherein lock gall and the swivel nut in the end lock gall hole constitute, swivel nut is driven by the lock core of lock gall, that end that locking bolt is connected on the swivel nut is provided with screw thread, it is characterized in that this screw thread is a left hand thread.
2. U-shaped screw thread theftproof lock according to claim 1 is characterized in that being provided with internal projecting ring between swivel nut and lock gall in the lock gall hole, and the lock gall hole in the swivel nut outside is provided with internal projecting ring.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2007200554101U CN201074441Y (en) | 2007-08-07 | 2007-08-07 | U-shaped thread anti-theft lock |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2007200554101U CN201074441Y (en) | 2007-08-07 | 2007-08-07 | U-shaped thread anti-theft lock |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201074441Y true CN201074441Y (en) | 2008-06-18 |
Family
ID=39519704
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNU2007200554101U Expired - Fee Related CN201074441Y (en) | 2007-08-07 | 2007-08-07 | U-shaped thread anti-theft lock |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201074441Y (en) |
-
2007
- 2007-08-07 CN CNU2007200554101U patent/CN201074441Y/en not_active Expired - Fee Related
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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: 20080618 Termination date: 20110807 |