CN2412975Y - Anti-theft lock for manhole cover - Google Patents
Anti-theft lock for manhole cover Download PDFInfo
- Publication number
- CN2412975Y CN2412975Y CN 00217027 CN00217027U CN2412975Y CN 2412975 Y CN2412975 Y CN 2412975Y CN 00217027 CN00217027 CN 00217027 CN 00217027 U CN00217027 U CN 00217027U CN 2412975 Y CN2412975 Y CN 2412975Y
- Authority
- CN
- China
- Prior art keywords
- lock
- lock core
- core shaft
- gear
- dead 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
Links
Images
Landscapes
- Underground Structures, Protecting, Testing And Restoring Foundations (AREA)
Abstract
The utility model relates to an anti-theft lock for a manhole cover, and a lock core body of which is composed of a lock core shaft, a gear and a rack bar. The lock core shaft is tightly matched with the central hole of the gear which is engaged with the rack bar which is axially and fixedly connected with a lock bolt, and the upper end of the lock core shaft is exposed above a lock housing body. Sealing members are arranged at the splicing position of an upper and a lower lock housing covers of the lock housing body, between the lock bolt and a slide slot of the lock bolt, and between the lock core shaft and a positioning hole wall are all. The utility model has the advantages of simple, firm and reliable structure, good sealing performance and flexible and convenient installation and use, and the utility model can ensure to be used for a long time in a manhole under severe conditions. The utility model is suitable for various manhole covers with different specifications or other hole covers.
Description
The utility model relates to a kind of lockset, especially for the lockset of inspection shaft lid and other port lids.
The stolen phenomenon of inspection shaft lid on the town road happens occasionally, and is seriously endangering driving and pedestrian's safety.For this reason, many inventors designed the lock that inspection shaft covers, but the most structure of these locksets are complicated, and Corrosion Protection is poor, and application life is short.
The purpose of this utility model provides a kind of simple in structure, and is anticorrosive, long service life, and installation, easy to use and reliable anti-theft lock for inspection well cover.
The technical solution of the utility model is: lock core body is made up of lock core shaft, wheel and rack, the centre bore tight fit of lock core shaft and gear, and wheel and rack is meshed, and tooth bar is connected with the dead bolt axial restraint.The lock housing body comprises up and down two concave-convex lock housings lids, and after two concave-convex lock housings covered, inside was formed with the horizontal concrete chute that appearance is respectively joined the horizontal concrete chute of perpendicular positioning hole that lock core shaft is installed, dead bolt and gear, tooth bar meshing-body.The upper end of lock core shaft is exposed to the cap top of locking.
Accompanying drawing 2 is the utility model vertical profile TV structure schematic diagram.
Accompanying drawing 3 is the cross-sectional TV structure schematic diagram of the utility model.
Accompanying drawing 4 is installed on the structural representation that inspection shaft covers for the utility model.
The utility model is described in further detail below in conjunction with accompanying drawing.
The lock housing up and down of lock housing body lid 3,9 can die casting or stamped, offer screw connecting hole 10 around the lock housing lid, the cap 3 of wherein locking extends some beads, on bead, offer screw hole 2, lock body is mounted on the place that keeps to the side, inspection shaft lid bottom surface by these screw holes 2 with screw, and make dead bolt 1 axial line cover bottom center towards inspection shaft, simultaneously cover 13 bottom surfaces and dead bolt 1 reverse other end limit and fix one and stretch out the peripheral profile 14 that can inject Seat for manhole cover circle lower edge of inspection shaft lid at inspection shaft.Cover corresponding to lock core shaft place at inspection shaft and to offer the hole 12 of being convenient to insert telescopic key.The triangle that matches with the sleeve key, geometry such as square are made 6 upper ends by lock core shaft.Insert lock core shaft 6 upper ends with the sleeve key by inspection shaft lid hole 12, the rotational sleeve key, promptly driving the gear 4 that is tight with in the lock core shaft 6 rotates, thereby transmission pinion rack 7 moves horizontally, the dead bolt 1 that is connected with tooth bar 7 axial restraints just stretches out lock tongue cavity and inserts Seat for manhole cover circle lower edge, so the inspection shaft lid is lockable; Otherwise rotational sleeve key, dead bolt 1 are return in the lock body lock tongue cavity, and the inspection shaft lid just can have been opened.In order to prevent that water and gas are to pollution, erosion, the infringement of part in the lock body in the inspection shaft, between the perpendicular positioning hole wall of the lock core shaft 6 and the cap 3 of locking, up and down between the lock housing lid 3,9 and be respectively equipped with sealing ring 5, sealing mat 8 and sealing ring 11 between dead bolt 1 and the dead bolt chute.Present embodiment lock core shaft sealing ring 5 is to be installed in the seal groove of offering in the lock core shaft 6.
The utility model is simple and reliable for structure, and good airproof performance, can guarantee to use for a long time under the mal-condition in inspection shaft.In addition, its convenient and flexible installation is applicable to that the inspection shaft of all size specification covers or other port lids.
Claims (4)
1. anti-theft lock for inspection well cover, has lock core body, dead bolt and lock housing body, it is characterized in that lock core body is by lock core shaft (6), gear (4) and tooth bar (7) are formed, the centre bore tight fit of lock core shaft (6) and gear (4), gear (4) is meshed with tooth bar (7), tooth bar (7) is connected with dead bolt (1) axial restraint, the lock housing body comprises two concave-convex lock housing lids (3) up and down, (9), after two concave-convex lock housings cover, inside is formed with to hold respectively joins the perpendicular positioning hole that lock core shaft (6) is installed, the horizontal concrete chute of dead bolt (1) and gear (4), the horizontal concrete chute of tooth bar (7) meshing-body, the upper end of lock core shaft (6) are exposed to the cap of locking (3) top.
2. by the described anti-theft lock for inspection well cover of claim 1, the cap (3) that it is characterized in that locking extends some beads, offers screw hole (2) on bead.
3. by claim 1 or 2 described anti-theft lock for inspection well cover, it is characterized in that between the perpendicular positioning hole wall of lock core shaft (6) and the cap of locking (3), lock housing is covered between (3), (9) and is respectively equipped with sealing ring (5), sealing mat (8) and sealing ring (11) between dead bolt (1) and the dead bolt chute up and down.
4. it is characterized in that by the described anti-theft lock for inspection well cover of claim 3 sealing ring (5) is to be installed in the seal groove of offering in the lock core shaft (6).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 00217027 CN2412975Y (en) | 2000-03-23 | 2000-03-23 | Anti-theft lock for manhole cover |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 00217027 CN2412975Y (en) | 2000-03-23 | 2000-03-23 | Anti-theft lock for manhole cover |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2412975Y true CN2412975Y (en) | 2001-01-03 |
Family
ID=33582671
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 00217027 Expired - Fee Related CN2412975Y (en) | 2000-03-23 | 2000-03-23 | Anti-theft lock for manhole cover |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2412975Y (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103195309A (en) * | 2013-04-28 | 2013-07-10 | 池仁记 | Fireproof lock for pipeline shaft door |
-
2000
- 2000-03-23 CN CN 00217027 patent/CN2412975Y/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103195309A (en) * | 2013-04-28 | 2013-07-10 | 池仁记 | Fireproof lock for pipeline shaft door |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN2412975Y (en) | Anti-theft lock for manhole cover | |
| CN201941721U (en) | Oil tank burglar alarm for intelligent automobile | |
| CN201442516U (en) | Safe oil-stolen preventing box cover | |
| CN201358473Y (en) | Anti-theft inspection well cap | |
| CN201024428Y (en) | Anti-theft manhole cover and its dedicated opening tool | |
| CN207512787U (en) | Anti-stealing manhole cover anti-theft components | |
| CN201800675U (en) | Combined type fuel tank burglar alarm used for automobile | |
| CN207392939U (en) | A kind of inserted lock for manhole cover | |
| CN215948274U (en) | Municipal works are with well lid that has theftproof function | |
| CN214524159U (en) | Roadside temporary vehicle locking pile with telescopic structure for parking bicycle | |
| CN201670098U (en) | Fuel tank burglar alarm for automobiles | |
| CN217027217U (en) | Rotary anti-theft well cover | |
| CN2248659Y (en) | Thfet-proof cover of fuel tank | |
| CN2228929Y (en) | Theft-proof manhole cover | |
| CN2250376Y (en) | Anti-theft manhole cover | |
| CN207620010U (en) | Mechanical anti-theft manhole cover | |
| CN202098486U (en) | Safety lock device of two-wheeled vehicle | |
| CN2392818Y (en) | Built-in-hinged anti-theft manhole cover | |
| CN2298980Y (en) | Steering lock of motor-vehicle | |
| CN201212309Y (en) | Safety, water proof and rust prevention lock | |
| CN201031551Y (en) | Well cover anti-theft lock and opening device thereof | |
| CN201093162Y (en) | Liquid gas storage tank | |
| CN2359338Y (en) | Anti-theft manhole cover | |
| CN201100042Y (en) | Anti-theft lock dedicated for tricycle | |
| CN2436618Y (en) | Fully closed permanent magnetic lock for manhole cap |
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 |