CN2425170Y - Safety anti-theft manhole cover lock - Google Patents
Safety anti-theft manhole cover lock Download PDFInfo
- Publication number
- CN2425170Y CN2425170Y CN 00209799 CN00209799U CN2425170Y CN 2425170 Y CN2425170 Y CN 2425170Y CN 00209799 CN00209799 CN 00209799 CN 00209799 U CN00209799 U CN 00209799U CN 2425170 Y CN2425170 Y CN 2425170Y
- Authority
- CN
- China
- Prior art keywords
- lock
- bolt
- dead bolt
- manhole cover
- gear
- 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
Links
Landscapes
- Underground Structures, Protecting, Testing And Restoring Foundations (AREA)
Abstract
The utility model relates to a safety theftproof manhole cover lock which is provided with a lock body structure which is connected with a manhole cover by two mounting screw holes 7. The safety theftproof manhole cover lock is provided with a bolt gear mass 4 and a rack bar bolt 2 which slides backwards and forwards along a bolt slot 6 of a bolt rack bar, and a lock spring hole 5 is arranged on a bolt gear. The lower part of the lock spring hole is provided with a lock core of a lock body, and a key hole 3 is arranged on the bolt gear. A key is inserted into the manhole cover form a lock hole 3 of the manhole cover, and the bolt gear is driven by the key to rotate to push the rack bar bolt to extend out of the lock body. When the rack bar bolt arrives at a certain position, a lock spring automatically sinks to obtain the locking purpose. The utility model has the advantages of simple structure and high practicability.
Description
The utility model belongs to the theftproof lock technical field, a kind of safe theft-proof well cover lock.
It is serious that the no antitheft retaining mechanism that existing well is stamped, well lid are lost phenomenon, and causing the personnel casualty accidents of losing because of well lid also is frequent generation; Over the past two years, the improvement of well lid, it is a lot of to add lock construction, but still has such-and-such problem, or structure is comparatively complicated, perhaps for lock body structure exposes, still can't resolve the stolen problem of well lid.
The purpose of this utility model provides a kind of safe theft-proof well cover lock, and when making the locking of lock body and well lid, safe and reliable, low cost of manufacture is easy to apply.
The utility model adopts following technical scheme to realize the foregoing invention purpose:
Described safe theft-proof well cover lock, has a lock body structure, by two screw hole 7 being installed links to each other with well lid, pattern manhole cover lock has a dead bolt gear 4, tooth bar dead bolt 2, the tooth bar dead bolt slides along lock tongue slot 6 front and back, and a locking tappet hole 5 is arranged on the dead bolt gear, the bottom of locking tappet hole is the lock body lock core, and keyhole 3 is arranged on the dead bolt gear.Key inserts under the well lid from the lockhole 3 of well lid, and the dead bolt gear is rotated, and drives dead bolt tooth bar front and back and slides, and the dead bolt tooth bar is stretched out, and just in time stumbles the well lid cover, opens or the locking well lid.
The utlity model has following superiority:
Described safe theft-proof well cover lock, it is simple in structure, and is practical, and anti-theft capability is strong, and is sturdy and durable, and its keyhole is unimpeded, and silt is difficult for stopping up, and locking, unlatching are conveniently.
Below in conjunction with the description of drawings specific embodiment:
Fig. 1 is a safe theft-proof well cover lock body structure schematic diagram:
As shown in fig. 1: the 1-lock body, 2-tooth bar dead bolt, the 3-keyhole, 4-dead bolt gear, the 5-snap, the 6-lock tongue slot, 7-installs screw.
As shown in FIG.: the safe theft-proof well cover lock, has a lock body structure, by two screw hole 7 being installed with the well lid body links to each other, pattern manhole cover lock has a dead bolt gear mass 4, tooth bar dead bolt 2, the tooth bar dead bolt slides along dead bolt Teethed bolt lock glossal canal 6 front and back, and a locking tappet hole 5 is arranged on the dead bolt gear, the bottom of locking tappet hole is the lock body lock core, and keyhole 3 is arranged on the dead bolt gear.Key inserts from the lockhole 3 of well lid under the well lid, and key drives the dead bolt gear and rotates, and promotes the tooth bar dead bolt and stretches out lock body, and when arriving certain position, snap sinks automatically, reaches the purpose of locking; Key inserts keyhole, mentions snap to the enable possition, and key drives the dead bolt gear, promotes tooth bar dead bolt income lock body, and locking system is opened.It is simple in structure, and is practical, and anti-theft capability is strong, sturdy and durable, and its keyhole is unimpeded, and silt is difficult for stopping up, and locking, unlatching are conveniently.
Claims (1)
1, a kind of safe theft-proof well cover lock, it is characterized in that: described safe theft-proof well cover lock, has a lock body structure, by two screw hole 7 is installed and is linked to each other with well lid, pattern manhole cover lock has a dead bolt gear mass 4, tooth bar dead bolt 2, the tooth bar dead bolt slides along dead bolt Teethed bolt lock glossal canal 6 front and back, one locking tappet hole 5 is arranged on the dead bolt gear, and the bottom of locking tappet hole is the lock body lock core, and keyhole 3 is arranged on the dead bolt gear.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 00209799 CN2425170Y (en) | 2000-04-24 | 2000-04-24 | Safety anti-theft manhole cover lock |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 00209799 CN2425170Y (en) | 2000-04-24 | 2000-04-24 | Safety anti-theft manhole cover lock |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2425170Y true CN2425170Y (en) | 2001-03-28 |
Family
ID=33576821
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 00209799 Expired - Fee Related CN2425170Y (en) | 2000-04-24 | 2000-04-24 | Safety anti-theft manhole cover lock |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2425170Y (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108150515A (en) * | 2018-02-05 | 2018-06-12 | 郑鹏 | A kind of anti-demounting bolt structure |
-
2000
- 2000-04-24 CN CN 00209799 patent/CN2425170Y/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108150515A (en) * | 2018-02-05 | 2018-06-12 | 郑鹏 | A kind of anti-demounting bolt structure |
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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 |