CN100386485C - Antitheft manhole cover with special opening and locking device - Google Patents
Antitheft manhole cover with special opening and locking device Download PDFInfo
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- CN100386485C CN100386485C CNB2005100406567A CN200510040656A CN100386485C CN 100386485 C CN100386485 C CN 100386485C CN B2005100406567 A CNB2005100406567 A CN B2005100406567A CN 200510040656 A CN200510040656 A CN 200510040656A CN 100386485 C CN100386485 C CN 100386485C
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- manhole cover
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Abstract
The present invention provides a theft prevention manhole cover with a special opening device and a locking device. The present invention is composed of a manhole cover with a locking device, a supporting seat and a special opening device, wherein the locking device is composed of a T-stand-shaped lock core with an opening slot, a bolt, a lug boss, a cross pin, etc.; the special opening device is composed of an expanding wall, an expanding core and a handle. The locking device has simple structure, convenient installation and convenient use, and can prevent the silt blockage. After the manhole cover is opened, the operation construction of maintainers can not be interfered or influenced. The manhole cover and the supporting seat have no opening hole or opening notch, so the cover and the seat associate tightly, has strong performance of preventing prizing, foul air leak and congelation, and rain water, foul water and silt can not easily enter the manhole. The manhole cover can not opened by other tools except for the special opening device, so the manhole cover has good theft protection effect, can avoid the theft and the damage of underground pipeline facilities, and the potential safety hazard.
Description
Technical field
The present invention relates to a kind of antitheft manhole cover that is applied to all kinds of underground utilities manholes, be 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 or 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
Purpose of the present invention 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.
Purpose of the present invention is realized by following scheme:
The present invention 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 invention and bloated core are with being threaded.
The bloated core bottom of special opening device of the present invention is a frustum, and the bottom of the wall lower end limb inwall that expands is the inclined-plane, is bell mouth shape.
Catwalk shape lock core of the present invention is a truncated cone-shaped, and its open recess is cylinder shape groove or circular dovetail groove, and depth of groove is 2～8mm.
The bloated core top of special opening device of the present invention is connected with handle.
In the open recess of catwalk shape lock core of the present invention 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 invention and well lid unify, and the periphery of well lid has pick-proof limit and latch.
Locking device of the present invention 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 present invention compares 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 present invention 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 invention.
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 invention will be further described.The present invention is not limited to following examples.
With reference to accompanying drawing, the present invention 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, and its depth of groove is 3～5mm.Lock core 14 is fixed in the catwalk shape lockhole 10 of well lid 4, preferably lock core 14 and well lid 4 is 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.For ease of adjusting the position of the core 8 that expands, and make the external diameter expansion of the wall 6 that expands bigger, thus stuck better in the open recess 5 of lock core, the limb inwall bottom of the wall 6 that expands can be made into the inclined-plane, be bell mouth shape.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 (7)
1. the anti-stealing manhole cover that special opening and locking device are arranged by being made up of well lid, bearing and the special opening device of locking device, is characterized in that 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; In the open recess of catwalk shape lock core protruding core is arranged, there is its corresponding groove the bloated core frustum bottom surface of special opening device.
2. the anti-stealing manhole cover that special opening and locking device are arranged according to claim 1, 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, and the bottom of the wall lower end limb inwall that expands is the inclined-plane.
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, and depth of groove is 2～8mm.
5. according to claim 1 or the 2 or 3 described anti-stealing manhole covers that special opening and locking device are arranged, it is characterized in that the bloated core top of special opening device is connected with handle.
6. 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.
7. 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 |
|---|---|---|---|
| CNB2005100406567A CN100386485C (en) | 2005-06-22 | 2005-06-22 | Antitheft manhole cover with special opening and locking device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB2005100406567A CN100386485C (en) | 2005-06-22 | 2005-06-22 | Antitheft manhole cover with special opening and locking device |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN1710216A CN1710216A (en) | 2005-12-21 |
| CN100386485C true CN100386485C (en) | 2008-05-07 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNB2005100406567A Expired - Fee Related CN100386485C (en) | 2005-06-22 | 2005-06-22 | Antitheft manhole cover with special opening and locking device |
Country Status (1)
| Country | Link |
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| CN (1) | CN100386485C (en) |
Families Citing this family (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE202007014720U1 (en) * | 2007-10-19 | 2009-03-05 | Hydrotec Technologies Ag | Device for locking a lid on a frame to a shaft, tunnel o. The like. |
| CN103696442A (en) * | 2013-12-30 | 2014-04-02 | 刘韶辉 | Anti-falling well |
| CN104131582A (en) * | 2014-08-03 | 2014-11-05 | 黄进平 | Well lid fastening piece |
| CN107034924A (en) * | 2017-05-09 | 2017-08-11 | 长兴县李家巷铸造厂 | A kind of steel fibre high stability well lid |
Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2146514Y (en) * | 1993-01-06 | 1993-11-17 | 中原石油勘探局总机械厂 | Theft-proof cover for sewer manholes |
| CN2190667Y (en) * | 1994-04-28 | 1995-03-01 | 马万顺 | Anti-theft manhole cover and its opening tool |
| US5437309A (en) * | 1994-03-15 | 1995-08-01 | Timmons; Robert D. | Lockable well cap |
| CN2547770Y (en) * | 2002-05-24 | 2003-04-30 | 尚有志 | Unlocking antitheft manhole cover |
| CN2586731Y (en) * | 2002-09-16 | 2003-11-19 | 句容市科达技术开发有限公司 | Manhole cover having opening and locking device |
| CN2633958Y (en) * | 2003-06-19 | 2004-08-18 | 尚有志 | Lockless anti-theft manhole cover |
| CN2779002Y (en) * | 2005-03-28 | 2006-05-10 | 邢建中 | Anti-theft well cover lock and its unlocking spanner |
| CN2823336Y (en) * | 2005-06-22 | 2006-10-04 | 句容市科达技术开发有限公司 | Anti-theft manhole cover with special opening and locking device |
-
2005
- 2005-06-22 CN CNB2005100406567A patent/CN100386485C/en not_active Expired - Fee Related
Patent Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2146514Y (en) * | 1993-01-06 | 1993-11-17 | 中原石油勘探局总机械厂 | Theft-proof cover for sewer manholes |
| US5437309A (en) * | 1994-03-15 | 1995-08-01 | Timmons; Robert D. | Lockable well cap |
| CN2190667Y (en) * | 1994-04-28 | 1995-03-01 | 马万顺 | Anti-theft manhole cover and its opening tool |
| CN2547770Y (en) * | 2002-05-24 | 2003-04-30 | 尚有志 | Unlocking antitheft manhole cover |
| CN2586731Y (en) * | 2002-09-16 | 2003-11-19 | 句容市科达技术开发有限公司 | Manhole cover having opening and locking device |
| CN2633958Y (en) * | 2003-06-19 | 2004-08-18 | 尚有志 | Lockless anti-theft manhole cover |
| CN2779002Y (en) * | 2005-03-28 | 2006-05-10 | 邢建中 | Anti-theft well cover lock and its unlocking spanner |
| CN2823336Y (en) * | 2005-06-22 | 2006-10-04 | 句容市科达技术开发有限公司 | Anti-theft manhole cover with special opening and locking device |
Also Published As
| Publication number | Publication date |
|---|---|
| CN1710216A (en) | 2005-12-21 |
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| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
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Granted publication date: 20080507 Termination date: 20130622 |