CN2823336Y - Anti-theft manhole cover with special opening and locking device - Google Patents
Anti-theft manhole cover with special opening and locking device Download PDFInfo
- Publication number
- CN2823336Y CN2823336Y CN 200520072940 CN200520072940U CN2823336Y CN 2823336 Y CN2823336 Y CN 2823336Y CN 200520072940 CN200520072940 CN 200520072940 CN 200520072940 U CN200520072940 U CN 200520072940U CN 2823336 Y CN2823336 Y CN 2823336Y
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- CN
- China
- Prior art keywords
- special opening
- core
- locking device
- manhole cover
- well lid
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- 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 - Lifetime
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- Underground Structures, Protecting, Testing And Restoring Foundations (AREA)
Abstract
The utility model provides an anti-theft manhole cover with special opening and locking device which consists of a manhole cover with lock device, a support base and a special opening device. The lock device consists of a T-stand-shaped lock core with a key-hole, a bolt, a boss, a cross-pin, etc. The special opening device consists of an expanding wall, an expanding core and a handle. The lock device is of simple structure and it can prevent the silt from jamming the device. The lock device is convenient to be installed and used. The construction of the maintenance workers will not be interfered after the manhole cover is open. There is no open hole and open gap on the manhole cover and the support base. The manhole cover and the support base are associated tightly and are strongly anti-picking, anti-corrosion, anti-foul-release and anti-frostbite. Besides, rain water, waste water and silt can not easily enter the observer well. The manhole cover can not be provided with the other devices but the special opening device, so it has very good anti-theft effect. The utility model can prevent the underground wire facility from being stolen, being damaged, and causing safety hidden troubles.
Description
Technical field
The utility model relates to a kind of antitheft manhole cover that is applied to all kinds of underground utilities manholes, is meant a kind of simple in structure, installation and easy to use especially, but the anti-stealing manhole cover that must just can open with the special opening device.
Background technology
The stolen phenomenon of well lid of all kinds of underground utilities manholes in city happens occasionally, and the personal injury of Yin Faing, vehicle are damaged and stolen, the impaired also common report of incident of underground utilities facility therefrom, and the loss that causes is huge.For preventing that the stolen all kinds of anti-stealing manhole covers of producing that design of well lid from arising at the historic moment, useful hinge or chain link together well lid and bearing; Have on well lid lockset is installed; Nonmetals such as useful steel fiber concrete or resin are made manhole cover.Though certain antitheft effect is arranged, but still can not prevent effectively that well lid is stolen.The thief still can destroy chain, hinge is stolen well lid; The locking device of some well lid, though need be the socket wrench specially adapted for it unlatching of special shapes such as polygon or semicircle with endoporus, the thief uses other instrument also can open, steal well lid; The manhole cover that some nonmetals are made, because of the recyclable utilization of its metallic framework, the existing pilferage target that also becomes the thief, even wherein there is not metallic framework, for stealing underground utilities facility such as cable, valve etc., the thief also can open it.Thereby cause underground installation stolen, undermined and caused potential safety hazard.In addition, some locking device is after unlatching, and well lid can not overturn 180 °, can hinder and the job execution that influences the attendant; The locking device structure complexity that has, and easy-to-rust or stopped up by silt stuck, opens very difficult, increase attendant's labour intensity.
Summary of the invention
The purpose of this utility model just is to overcome the defective of background technology, provides a kind of special opening device that do not have, the anti-stealing manhole cover that uses other instrument just can't open.
The purpose of this utility model is realized by following scheme:
The utility model is by being made up of well lid, bearing and the special opening device of locking device.Locking device is a catwalk shape lock core, is installed in the catwalk shape lockhole of well lid, and there is open recess on the top of catwalk shape lock core; The special opening device is made of bloated core and bloated wall, and the upper end of the wall that expands is that tubular, lower end are flap, and the upper end of the core that expands is that column, bottom are the platform shape, and bloated wall is enclosed within on the core that expands.
The bloated wall of special opening device of the present utility model and bloated core are with being threaded.
The bloated core bottom of special opening device of the present utility model is a frustum.
Catwalk shape lock core of the present utility model is a truncated cone-shaped, and its open recess is cylinder shape groove or circular dovetail groove.
The bloated core top of special opening device of the present utility model is connected with handle.
In the open recess of catwalk shape lock core of the present utility model protruding core is arranged, there is its corresponding groove the bloated core frustum bottom surface of special opening device.
Catwalk shape lock core of the present utility model and well lid unify, and the periphery of well lid has pick-proof limit and latch.
Locking device of the present utility model is made of catwalk shape lock core, boss, dead bolt, lock tongue slot, latch and latch groove, the aperture of lockhole is slightly larger than lock core, boss is fixed on the lower end of catwalk shape lock core, be stuck in the back side of well lid, dead bolt is connected with the bottom of catwalk shape lock core, latch is fixed on the another side corresponding with catwalk shape lockhole on the well lid, and lock tongue slot and latch groove are then on bearing inboard and dead bolt and the corresponding position of latch.
The utility model is compared with background technology, has following advantage and effect:
Locking device structure is simple, can prevent that silt stops up, and installs with easy to use.After opening, well lid can not hinder and the job execution that influences the attendant.No open hole and unlatching breach on well lid and the bearing, lid is good with the seat fitted seal, and pick-proof, anticorrosion, anti-foul smell leak strong with resistance to frost, and rainwater, sewage and silt are difficult for entering in the manhole.Do not have the special opening device, use other instrument just well lid can't be opened, have good anti-theft effect, can avoid the underground utilities facility stolen, undermined and caused potential safety hazard.Therefore, the utility model has excellent popularization and application prospect as a kind of novel antitheft well cover.
Description of drawings
Accompanying drawing is a structural representation of the present utility model.
Shown in the figure: 1 is that bearing, 2 is that latch, 3 is that pick-proof limit, 4 is that well lid, 5 is that open recess, 6 is that bloated wall, 7 is that nut, 8 is that bloated core, 9 is that handle, 10 is that catwalk shape lockhole, 11 is that lock tongue slot, 12 is that dead bolt, 13 is that boss, 14 is that catwalk shape lock core, 15 is that protruding core, 16 is the latch groove.
The specific embodiment
Below in conjunction with the drawings and specific embodiments, the utility model is described in further detail.The utility model is not limited to following examples.
With reference to accompanying drawing, the utility model is made up of well lid 4, bearing 1, locking device and special opening device.Very thick, heavy when well lid, when not having open hole and opening breach again, the pick-proof and anti-theft effect can be arranged by himself weight.For better pick-proof and anti-theft, can be at well lid periphery design and installation pick-proof iron limit 3 and latch 2, its locking device only has the circular catwalk shape lock core 14 of opening dovetail groove 5 to get final product with the top, lock core 14 is fixed in the catwalk shape lockhole 10 of well lid 4, preferably lock core 14 and well lid 4 are unified, in case lock core 14 moves in lockhole 10.For making the thief be difficult to find lockhole, catwalk shape lockhole 10 tip designs can be become the pattern identical with anti-skid design, for preventing that better non-attendant from other TO well lid 4, having a protruding core 15 in the circle unlatching dovetail groove 5 of catwalk shape lock core 14.For make the locking device scope of application wider, be applied on all kinds of anti-stealing manhole covers, locking device also can be made of catwalk shape lock core 14, boss 13, dead bolt 12, latch 2.Catwalk shape lock core 14 is installed in the catwalk shape lockhole 10 of well lid 4, the aperture of lockhole 10 is slightly larger than lock core 14, and lock core 14 can be rotated in lockhole 10.Boss 13 is fixed on the lower end (the also available nut of boss 13 substitute) of lock core 14, is stuck in the back side of well lid 4.The bottom that dead bolt 12 welded or be fixed on screw thread lock core 14.Latch 2 is fixed on the well lid 4 on the another side corresponding with lockhole 10, and mortise lock 2 can be one and also can be several.Also can otherwise connect well lid 4 and bearing 1.Latch groove 16 and lock tongue slot 11 be inboard and mortise lock 2 and dead bolt 12 corresponding positions at bearing.For preventing that light-duty well lid from being pried open, can add pick-proof limit 3 at the periphery of well lid 4.The special opening device is made of with handle 9 bloated wall 6, the core 8 that expands.Expand 6 upper ends of wall be cylindric, the lower end is divided into several lobes (mostly being 3 to 4 lobes), is to increase frictional force, can be with the limb surface knurling or the plucking of wall 6 lower ends of expanding.The expand upper end of core 8 is cylindric and screw thread, bottom are arranged is frustum, the frustum bottom surface of the core 8 that expands have with lock core 14 on protruding core 15 corresponding grooves.The wall 6 that will expand is enclosed within on the core 8 that expands, with being threaded.Both can on the cylinder inner wall car of wall 6 upper ends that expands, be connected with bloated core 8 by screw thread, also can on bloated wall 6, be connected with bloated core 8, and with the position of the bloated core 8 of its adjustment on bloated wall 6, and outwards strut or draw in the limb of wall 6 lower ends of will expanding and reset with nut 7.Open for convenient, connect handle 9 in the welding of the top of the core 8 that expands or with nut.When opening well lid, only need the special opening device is inserted in the open recess 5 of lock core, twist nut 7 downwards, press down the wall 6 that expands, the limb of its lower end is outwards strutted, stuck in the open recess 5 of lock core 14.With about handle 9 half-twists, open dead bolt 12 (if no dead bolt, then need not rotary handle 9), upwards mention well lid 4 then, make latch 2 deviate from latch groove 16, can open well lid 4.Attendant's job execution finishes, and only need mention well lid 4 and cover on the bearing 1, locks dead bolt 12, upwards twists nut 7 again, and inside gathering the in of limb of wall 6 lower ends of expanding resetted, and can take off the special opening device.
Claims (8)
1, a kind of anti-stealing manhole cover that special opening and locking device are arranged, by forming by well lid, bearing and the special opening device of locking device, it is characterized in that locking device is a catwalk shape lock core, be installed in the catwalk shape lockhole of well lid that there is open recess on the top of catwalk shape lock core; The special opening device is made of bloated core and bloated wall, and the upper end of the wall that expands is that tubular, lower end are flap, and the upper end of the core that expands is that column, bottom are the platform shape, and bloated wall is enclosed within on the core that expands.
2, the anti-stealing manhole cover of special opening according to claim 1 and locking device, the bloated wall that it is characterized in that the special opening device and bloated core are with being threaded.
3, the anti-stealing manhole cover that special opening and locking device are arranged according to claim 1 is characterized in that the bloated core bottom of special opening device is a frustum.
4, the anti-stealing manhole cover that special opening and locking device are arranged according to claim 1 is characterized in that catwalk shape lock core is a truncated cone-shaped, and its open recess is cylinder shape groove or circular dovetail groove.
5,, it is characterized in that the bloated core top of special opening device is connected with handle according to claim 1 or the 2 or 3 described anti-stealing manhole covers that special opening and locking device are arranged.
6, according to claim 1 or the 3 or 4 described anti-stealing manhole covers that special opening and locking device are arranged, it is characterized in that in the open recess of catwalk shape lock core protruding core being arranged, there is its corresponding groove the bloated core frustum bottom surface of special opening device.
7, the anti-stealing manhole cover that special opening and locking device are arranged according to claim 1 is characterized in that catwalk shape lock core and well lid unify, and the periphery of well lid has pick-proof limit and latch.
8, the anti-stealing manhole cover that special opening and locking device are arranged according to claim 1, it is characterized in that locking device is made of catwalk shape lock core, boss, dead bolt and latch, the aperture of lockhole is slightly larger than lock core, boss is fixed on the lower end of catwalk shape lock core, be stuck in the back side of well lid, dead bolt is connected with the bottom of catwalk shape lock core, and on the another side corresponding with catwalk shape lockhole, lock tongue slot and latch groove are then on bearing inboard and dead bolt and the corresponding position of latch on the fixing well lid of latch.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200520072940 CN2823336Y (en) | 2005-06-22 | 2005-06-22 | Anti-theft manhole cover with special opening and locking device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200520072940 CN2823336Y (en) | 2005-06-22 | 2005-06-22 | Anti-theft manhole cover with special opening and locking device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2823336Y true CN2823336Y (en) | 2006-10-04 |
Family
ID=37032448
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 200520072940 Expired - Lifetime CN2823336Y (en) | 2005-06-22 | 2005-06-22 | Anti-theft manhole cover with special opening and locking device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2823336Y (en) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN100386485C (en) * | 2005-06-22 | 2008-05-07 | 句容市科达技术开发有限公司 | Antitheft manhole cover with special opening and locking device |
| CN102733424A (en) * | 2012-04-13 | 2012-10-17 | 邸熈臻 | Noctilucous full-function well lid, water meter lid or well ditch lid with creative painting pattern and structure |
| CN103290862A (en) * | 2013-06-07 | 2013-09-11 | 张红彬 | Novel well cover assembly |
| CN104088303A (en) * | 2014-07-17 | 2014-10-08 | 欧健 | Pit well cover with mechanical password locks and cam locking locating |
| CN106545033A (en) * | 2016-12-08 | 2017-03-29 | 赵艳蕊 | Pipe network water supply manhole lid device and open method |
-
2005
- 2005-06-22 CN CN 200520072940 patent/CN2823336Y/en not_active Expired - Lifetime
Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN100386485C (en) * | 2005-06-22 | 2008-05-07 | 句容市科达技术开发有限公司 | Antitheft manhole cover with special opening and locking device |
| CN102733424A (en) * | 2012-04-13 | 2012-10-17 | 邸熈臻 | Noctilucous full-function well lid, water meter lid or well ditch lid with creative painting pattern and structure |
| CN102733424B (en) * | 2012-04-13 | 2017-04-12 | 邸熈臻 | Noctilucous full-function well lid, water meter lid or well ditch lid with creative painting pattern and structure |
| CN103290862A (en) * | 2013-06-07 | 2013-09-11 | 张红彬 | Novel well cover assembly |
| CN104088303A (en) * | 2014-07-17 | 2014-10-08 | 欧健 | Pit well cover with mechanical password locks and cam locking locating |
| CN104088303B (en) * | 2014-07-17 | 2016-03-30 | 欧健 | There is the cellar for storing things well lid of mechanical code lockset and camlock location |
| CN106545033A (en) * | 2016-12-08 | 2017-03-29 | 赵艳蕊 | Pipe network water supply manhole lid device and open method |
| CN106545033B (en) * | 2016-12-08 | 2019-04-09 | 赵艳蕊 | Pipe network water supply manhole lid device and open method |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| AV01 | Patent right actively abandoned |
Effective date of abandoning: 20080507 |
|
| C25 | Abandonment of patent right or utility model to avoid double patenting |