CN2471890Y - Security lock - Google Patents
Security lock Download PDFInfo
- Publication number
- CN2471890Y CN2471890Y CN 01221005 CN01221005U CN2471890Y CN 2471890 Y CN2471890 Y CN 2471890Y CN 01221005 CN01221005 CN 01221005 CN 01221005 U CN01221005 U CN 01221005U CN 2471890 Y CN2471890 Y CN 2471890Y
- Authority
- CN
- China
- Prior art keywords
- lock pin
- lock
- sleeve
- tapered end
- end cover
- 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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- Lock And Its Accessories (AREA)
Abstract
The utility model belongs to a theftproof lock, which comprises a U-shaped case of lock, a tapered ned sleeve, a lock pin and a lock pin sleeve; wherein, the tapered ned sleeve and the lock pin sleeve are arranged at the two ends of the U-shaped case of lock; a tapered ned and a spiral nut are positioned in the tapered ned sleeve; a thread is arranged at a front end of the lock pin and a locating key is positioned at the other end; the lock pin passes through the lock pin sleeve; a spiral nut is arranged at the front end of thread; the locating key is clamped in a locating keyway in the lock pin sleeve; a locating ring is arranged at the front end of the tapered ned sleeve; an external diameter of the spiral nut is larger than an inner diameter of the locating ring; a circular groove is positioned in the lock pin sleeve; the thread of the lock pin is arranged on a cylindrical boss; and the boss is correspondent to the circular groove. The circular groove is added in the lock pin sleeve of the theftproof lock, so that the diameter of the thread part of the lock pin is increased, so as to match with the circular groove. When unlocking, the lock pin cannot fall down or tamp the feet by accidents. Thus, the utility model is safe and practical. In addition, the locating ring is added before the tapered ned sleeve, so that the theftproof lock is more durable.
Description
The utility model belongs to a kind of theftproof lock.
At present, it is various no matter to be that the theftproof lock of motorcycle, iron gate or other purposes has, and mostly is the lock of spring structure greatly, is cut or opens even cut open with the wind weldering with iron hammer because these locks of a variety of causes still easily pry open, and anti-theft effect is undesirable.Patent 98245972.6 anti-theft lock for motorcycle adopt at the two ends of U-shaped lock frame tapered end cover and lockpin sleeve are set, and in the tapered end cover tapered end and swivel nut are installed, and screw in the locking of tapered end cover inner face again by the screw thread lock pin being passed lockpin sleeve.This theftproof lock is owing to its special structure and material, and energy pick-proof, anti-saw, anti-hammering and windproof weldering are cut.But, because this theftproof lock is the propelling by the screw thread lock pin or pulls out the function of finishing locking or unblanking that when the screw thread lock pin was pulled out, slippage was come out from lockpin sleeve easily, easily pounded the safety inadequately of hurting sb.'s feelings.In addition, because the often spinning in and out in the tapered end cover of screw thread lock pin, easy flanging with the swivel nut opening part draws back and damages the tapered end cover, influences application life.
The screw thread lock pin can slippage when the purpose of this utility model provided a kind of unblanking, the theftproof lock of safe in utilization and tapered end nested structure firm and durable.
For achieving the above object, theftproof lock of the present utility model comprises U-shaped lock body, tapered end cover, lock pin and lockpin sleeve, the two ends of U-shaped lock body are provided with tapered end cover and lockpin sleeve respectively, are provided with tapered end and swivel nut in the tapered end cover, and the lock pin front end is provided with screw thread, the other end is provided with positioning key, lock pin passes lockpin sleeve, and the screw thread and the swivel nut of front end match, and positioning key is stuck in the interior positioning spline of lockpin sleeve, described tapered end cover front end is provided with a locating ring, and the external diameter of swivel nut is greater than the internal diameter of locating ring; Have an annular groove in the described lockpin sleeve, the screw thread on the lock pin is arranged on the cylindrical boss, and boss and annular groove adapt.
As improvement of the present utility model, described swivel nut is a lid shape nut, and its top cover outside has a draw-in groove that matches with dead bolt.
Theftproof lock of the present utility model is set up annular groove in lockpin sleeve, the diameter that lock pin is threaded part increases, and its and annular groove are adapted, and when unblanking, lock pin can not drop or injures pin, not only safety but also practicality by a crashing object because of careless slippage.Before the tapered end cover, set up locating ring in addition, make this theftproof lock more durable.
Below in conjunction with accompanying drawing the utility model is elaborated:
Fig. 1 is the utility model structural representation;
Fig. 2 is the utility model detent configuration schematic diagram.
As Fig. 1, shown in 2, theftproof lock of the present utility model is provided with tapered end cover 2 and lockpin sleeve 3 at the two ends of a U-shaped lock body 1, U-shaped lock body 1, tapered end cover 2 and lockpin sleeve 3 are to use the stainless steel cast solid, tapered end cover 2 is a through hole in the middle of being processed into a cylinder, the front end of tapered end cover 2 is provided with a locating ring 17, this locating ring 17 overlaps at the casting tapered end and processed together in 2 o'clock, earlier lock pin 7 is passed tapered end cover 2 and lockpin sleeve 3, again swivel nut 6 is inserted in the tapered end cover 2, openend is installed tapered end 11 towards locating ring 17 again after swivel nut 6 top covers 16 places add packing ring 9, dead bolt 15 is snapped in the draw-in groove 23 of swivel nut 6, tapered end plain cushion 12 on the pad seals tight tapered end cover 2 at last.In the lockpin sleeve 3 is cylindrical hole 20, and the leading portion of through hole 20 is processed an annular groove 5, has a location keyway 4 on the back segment sidewall, and lock pin 7 one ends are provided with a cylindrical thread boss 10, and the other end is provided with a positioning key 8.Lock pin 7 is stretched in the tapered end cover 2, insert key hole 14 to right rotation with key, dead bolt 15 is stuck in draw-in groove 23 interior driven rotary nuts 6 in right rotation screws in lock pin in tapered end cover 2, and key changes motionless and finishes the locking process in positioning key 8 is stuck in positioning spline 4.When unblanking, key can be extracted out until lock pin 7 to anticlockwise, because the diameter of the screw boss 10 of lock pin 7 more greatly, when its process lockpin sleeve 3, screw boss 10 just in time drops in the annular groove 5, can't be from 20 slippages of lock pin through hole.Because the utility model adopts the stainless steel material manufacturing to form, can prevent hammer, pick-proof, anti-saw and windproof weldering cutting, play good anti-theft effect.
Claims (2)
1, a kind of theftproof lock, comprise U-shaped lock body, tapered end cover, lock pin and lockpin sleeve, the two ends of U-shaped lock body are provided with tapered end cover and lockpin sleeve respectively, are provided with tapered end and swivel nut in the tapered end cover, and the lock pin front end is provided with screw thread, the other end is provided with positioning key, lock pin passes lockpin sleeve, and the screw thread and the swivel nut of front end match, and positioning key is stuck in the interior positioning spline of lockpin sleeve, it is characterized in that: described tapered end cover front end is provided with a locating ring, and the external diameter of swivel nut is greater than the internal diameter of locating ring; Have an annular groove in the described lockpin sleeve, the screw thread on the lock pin is arranged on the cylindrical boss, and boss and annular groove adapt.
2, according to the described theftproof lock of claim 1, it is characterized in that: described swivel nut is a lid shape nut, and its top cover outside has a draw-in groove that matches with dead bolt.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 01221005 CN2471890Y (en) | 2001-04-04 | 2001-04-04 | Security lock |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 01221005 CN2471890Y (en) | 2001-04-04 | 2001-04-04 | Security lock |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2471890Y true CN2471890Y (en) | 2002-01-16 |
Family
ID=33638380
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 01221005 Expired - Fee Related CN2471890Y (en) | 2001-04-04 | 2001-04-04 | Security lock |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2471890Y (en) |
-
2001
- 2001-04-04 CN CN 01221005 patent/CN2471890Y/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 | ||
| 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 |