CN2753800Y - Anti-theft inspection well cover - Google Patents
Anti-theft inspection well cover Download PDFInfo
- Publication number
- CN2753800Y CN2753800Y CN 200420109232 CN200420109232U CN2753800Y CN 2753800 Y CN2753800 Y CN 2753800Y CN 200420109232 CN200420109232 CN 200420109232 CN 200420109232 U CN200420109232 U CN 200420109232U CN 2753800 Y CN2753800 Y CN 2753800Y
- Authority
- CN
- China
- Prior art keywords
- well cover
- theftproof
- nut
- manhole cover
- well lid
- 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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- Underground Structures, Protecting, Testing And Restoring Foundations (AREA)
Abstract
The utility model relates to a theftproof manhole cover, which is composed of a well cover, a well cover seat, a theftproof nut, a fan-like swinging plug pin, an opening hole and an opening device. The well cover is movably connected with the well cover seat through the theftproof nut and a theftproof bolt. The well cover is provided with the opening hole. The inner wall of the well cover below the opening hole is provided with the fan-like swinging plug pin. When the opening device is inserted into the opening hole, the well cover can be opened or closed. The fan-like swinging plug pin is arranged on the lower plane of the well cover seat. The manhole cover can be opened only by using the opening device thereby, the anti-prizing purpose is effectively achieved. Simultaneously, the connecting position of the well cover and the well cover seat is provided with the theftproof nut. When forward rotated, the nut is fastened when reversely rotated, a screw thread sleeve can not swing. The theftproof nut can not be demounted. Thereby, the theftproof difficulty is thoroughly overcome. The manhole cover not only has the advantages of simple installation and convenient maintenance but also has the advantages of theftproof function and anti-prizing function. The theftproof manhole cover can effectively solve the headache problems existing in municipal construction and management for a long time.
Description
Technical field
The utility model relates to the road surface manhole in a kind of municipal engineering field.
Background technology
For a long time, because the inspection shaft on road surface lid is stolen, not only bring about great losses to national wealth, cause grave danger also for people's life safety, stolen for preventing road surface inspection shaft lid, normally between well lid and manhole cover base, be connected with screw, pin or chain respectively, but, and cause the inspection shaft lid stolen because screw, pin, chain are very easily artificially damaged; What have installs lockset additional between well lid and manhole cover base, make because of lockset mostly is metal material, is subjected to the erosion of rainwater, sewage all the year round in addition, gets rusty easily especially, in case rust is dead, well lid is difficult to open, and this brings very big inconvenience to maintenance work.
Summary of the invention
The purpose of this utility model is that a kind of simple in structure, easy to use, anti-stealing manhole cover that theftproof performance is good will be provided.
The purpose of this utility model is achieved in that by well lid, manhole cover base, anti-theft nut, fan-shaped revolution latch, open hole, opener to be formed, well lid and manhole cover base flexibly connect by anti-theft nut, bolt, open hole is arranged on the well lid, fan-shaped revolution latch is arranged on the inwall of the below well lid of open hole, and opener inserts open hole can open or close well lid.
Anti-theft nut is made up of hexagonal cover, thread bush, roller bearing, cannelure, involute groove, the inwall lower end and the big outer wall of the thread bush lower end of hexagonal cover are provided with cannelure, the cylindrical of thread bush is provided with two involute grooves, in the involute groove roller bearing is arranged, hexagonal cover lower end embeds in the cannelure and lumps together with thread bush.
Opener is made up of housing, screw rod, conical nut, expansion slot, and screw rod passes housing, the lower end conical nut that is threaded, and the lower end of housing is provided with expansion slot, is expansion slot around the conical nut.
Because the anti-stealing manhole cover that adopts such scheme to make, fan-shaped revolution latch must use opener to open, thereby reach the pick-proof purpose effectively on the manhole cover base lower plane; Simultaneously, adopted anti-theft nut at well lid and manhole cover base junction, just changeing fastening, the counter-rotating thread bush can not turn round, and anti-theft nut can not unload, thereby fundamentally solved antitheft this difficult problem, compared with prior art, this inspection shaft covers not only simple installation, and is easy to maintenance, and antitheft, pick-proof dual fail-safe, can effectively solve and trouble the problem of having a headache most in the urban construction management for a long time.
Description of drawings
Fig. 1 is a structure chart of the present utility model.
Fig. 2 is the B-B sectional view of Fig. 1.
Fig. 3 is the A position amplification assumption diagram of Fig. 1.
Fig. 4 is an anti-theft nut structure chart of the present utility model.
Fig. 5 is an opener structure chart of the present utility model.
1 manhole cover base, 2 bolts, 3 well lids, 4 open holes, 5 screws, 6 open type flange, 7 fan-shaped revolution latches, 8 anti-theft nuts, 9 hexagonal covers, 10 thread bushs, 11 roller bearings, 12 involute grooves, 13 cannelures, 14 screw rods, 15 housings, 16 conical nut, 17 expansion slots among the figure.
The specific embodiment
Embodiment: this anti-stealing manhole cover is made up of well lid 3, manhole cover base 1, anti-theft nut 8, fan-shaped revolution latch 7, open hole 4, opener, well lid 3 flexibly connects by anti-theft nut 8 and bolt 2 with manhole cover base 1, open hole 4 is arranged on the well lid 3, fan-shaped revolution latch 7 is arranged on the inwall of the below well lid 3 of open hole 4, and be fixed in the open type flange 6 with screw 5, opener inserts open hole 4 can open or close well lid 3.Anti-theft nut 8 is made up of hexagonal cover 9, thread bush 10, roller bearing 11, cannelure 13, involute groove 12, the inwall lower end and the thread bush 10 big outer wall lower ends of hexagonal cover 9 are provided with cannelure 13, the cylindrical of thread bush 10 is provided with two involute grooves 12, roller bearing 11 is arranged in the involute groove 12, and hexagonal is overlapped in the 9 lower ends embedding cannelure 13 and is lumped together with thread bush 10.When hexagonal overlaps 9 when clockwise direction rotates, roller bearing 11 moves to involute groove 12 shallow limits under the effect of friction, hexagonal cover 9 is combined with thread bush 10, thereby it is fastening, when hexagonal overlaps 9 when counter clockwise direction is rotated, roller bearing 11 to involute groove 12 dark limits motion, makes hexagonal cover 9 separate with thread bush 10 under the effect of friction, reaches antitheft purpose.Opener is made up of housing 15, screw rod 14, conical nut 16, expansion slot 17, and screw rod 14 passes housing 15, the lower end conical nut 16 that is threaded, and the lower end of housing 15 is provided with expansion slot 17, is expansion slot 17 around the conical nut 16.
During use opener is inserted in the open hole 4 of well lid 3, the bottom of opener contacts fan-shaped revolution latch 7, the screw rod 14 that screws up with a wrench, 16 of conical nut will have expansion slot 17 parts and combine fastening rotation with fan-shaped revolution latch 7 this moment, thereby reach the opening and closing purpose; Otherwise, spanner is unclamped tight screw rod 14,16 of conical nut move down, and expansion slot 17 is restored, thereby take out opener.
Claims (3)
1, a kind of anti-stealing manhole cover, form by well lid, manhole cover base, anti-theft nut, fan-shaped revolution latch, open hole, opener, it is characterized in that: well lid and manhole cover base flexibly connect by anti-theft nut, bolt, open hole is arranged on the well lid, fan-shaped revolution latch is arranged on the inwall of the below well lid of open hole, and opener inserts open hole can open or close well lid.
2, anti-stealing manhole cover according to claim 1, it is characterized in that: anti-theft nut is made up of hexagonal cover, thread bush, roller bearing, cannelure, involute groove, the inwall lower end and the big outer wall of the thread bush lower end of hexagonal cover are provided with cannelure, the cylindrical of thread bush is provided with two involute grooves, in the involute groove roller bearing is arranged, hexagonal cover lower end embeds in the cannelure and lumps together with thread bush.
3, anti-stealing manhole cover according to claim 1, it is characterized in that: opener is made up of housing, screw rod, conical nut, expansion slot, and screw rod passes housing, the lower end conical nut that is threaded, the lower end of housing is provided with expansion slot, is expansion slot around the conical nut.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200420109232 CN2753800Y (en) | 2004-11-26 | 2004-11-26 | Anti-theft inspection well cover |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200420109232 CN2753800Y (en) | 2004-11-26 | 2004-11-26 | Anti-theft inspection well cover |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2753800Y true CN2753800Y (en) | 2006-01-25 |
Family
ID=35925907
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 200420109232 Expired - Fee Related CN2753800Y (en) | 2004-11-26 | 2004-11-26 | Anti-theft inspection well cover |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2753800Y (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104343133A (en) * | 2013-08-03 | 2015-02-11 | 徐发达 | 100 percent anti-theft inspection well cover |
| CN110552418A (en) * | 2019-09-26 | 2019-12-10 | 山东省水利科学研究院 | novel anti-displacement safety inspection well cover |
-
2004
- 2004-11-26 CN CN 200420109232 patent/CN2753800Y/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104343133A (en) * | 2013-08-03 | 2015-02-11 | 徐发达 | 100 percent anti-theft inspection well cover |
| CN110552418A (en) * | 2019-09-26 | 2019-12-10 | 山东省水利科学研究院 | novel anti-displacement safety inspection well cover |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| EE01 | Entry into force of recordation of patent licensing contract |
Assignee: Xuzhou Yufei Electric Power Technology Co.,Ltd. Assignor: Tong Zinuo Contract fulfillment period: 2008.9.25 to 2014.1.24 Contract record no.: 2008320000654 Denomination of utility model: Anti-theft manhole cover plate of plastic-wood or plastic-bamboo composite with steelring and its processing process Granted publication date: 20060125 License type: Exclusive license Record date: 20081008 |
|
| LIC | Patent licence contract for exploitation submitted for record |
Free format text: EXCLUSIVE LICENSE; TIME LIMIT OF IMPLEMENTING CONTACT: 2008.9.25 TO 2014.1.24; CHANGE OF CONTRACT Name of requester: XUZHOU YUFEI POWER SCIENCE CO., LTD. Effective date: 20081008 |
|
| 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 |