CN2359339Y - Anti-theft manhole cover - Google Patents
Anti-theft manhole cover Download PDFInfo
- Publication number
- CN2359339Y CN2359339Y CN 99231039 CN99231039U CN2359339Y CN 2359339 Y CN2359339 Y CN 2359339Y CN 99231039 CN99231039 CN 99231039 CN 99231039 U CN99231039 U CN 99231039U CN 2359339 Y CN2359339 Y CN 2359339Y
- Authority
- CN
- China
- Prior art keywords
- cover plate
- utility
- model
- bearing
- cover
- 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 provides an anti-theft manhole cover, which comprises a support seat and a cover plate. The utility model is characterized in that a built-in lock device is formed between the cover plate and the support seat through a self fixed lock tongue and a self lock groove, the cover plate and the support seat are locked, a special tool is used for opening and closing the cover plate, and otherwise, the cover plate can not be opened. The utility model has the advantages of simple structure and high safety, is suitable for various manholes on roads, and can effectively solve the problem that manholes which have no cover are caused by factors, such as theft, the fly of a cover plate, etc.
Description
The utility model relates to a kind of inspection shaft lid that is installed on the road that is applicable to.
Use now at the lid of the inspection shaft on the road and cover on bearing by a cover plate, cover plate often has stolen or is rolled and the bearing that flies out by wheel, cause the phenomenon of " inspection shaft uncovered ", have a strong impact on pedestrian and vehicular traffic safety, even adopt chain or the way that mechanical locking connects cover plate or lock with bearing is installed, still often there is chain to be cut off or mechanical lock gets rusty easily, problem such as malfunctioning is difficult to popularization in the open.
The purpose of this utility model is to overcome above-mentioned deficiency and proposes a kind of anti-stealing manhole cover.
The utility model relates to a kind of anti-stealing manhole cover, comprise bearing 1 and cover plate 2, the fixedly dead bolt 3 that carries by itself between cover plate 2 and the bearing 1 constitutes the built-in lock device with locked groove 4, with cover plate 2 and bearing 1 locking, open and close cover plate 2 and must use special tool, otherwise can't open cover plate 2.So just solved because of stealing or grinding " inspection shaft uncovered " problem that factor such as fly causes.
The utility model is simple in structure, makes easily, and is safe and reliable, do not have that invar system mechanical lock gets rusty, the malfunctioning and difficult problem of opening, and is applicable to that the various inspection shafts on the road cover.
Below in conjunction with accompanying drawing the utility model is done to describe further
Fig. 1 assembly structure schematic diagram of the present utility model.
The structural representation of Fig. 2 the utility model cover plate.
The structural representation of bearing in Fig. 3 the utility model.
Fig. 4 is the vertical view of schematic diagram shown in Figure 3.
Wherein: the 1st, bearing, the 2nd, cover plate, the 3rd, dead bolt, the 4th, locked groove.
The utility model comprises bearing 1 and cover plate 2, in the design of the outer rim of cover plate 2 two or more dead bolts 3 is arranged, and in the inner edge and the dead bolt 3 corresponding Position Design of bearing 1 locked groove 4 is arranged.During installation, dead bolt 3 is aimed at locked groove 4, cover plate 2 is put into bearing 1, with special tool cover plate 2 is turned an angle, constitute built-in lock, cover plate 2 just is locked on the bearing 1, opens cover plate 2 and also must use special tool counter-rotation cover plate 2.
Claims (1)
1, a kind of inspection shaft lid includes cover plate (2) and bearing (1), it is characterized in that adopting between cover plate (2) and the bearing (1) this fixing dead bolt (3) of self being with to constitute the built-in lock device with locked groove (4), and cover plate (2) and bearing (1) are locked.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 99231039 CN2359339Y (en) | 1999-02-26 | 1999-02-26 | Anti-theft manhole cover |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 99231039 CN2359339Y (en) | 1999-02-26 | 1999-02-26 | Anti-theft manhole cover |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2359339Y true CN2359339Y (en) | 2000-01-19 |
Family
ID=34019980
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 99231039 Expired - Fee Related CN2359339Y (en) | 1999-02-26 | 1999-02-26 | Anti-theft manhole cover |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2359339Y (en) |
-
1999
- 1999-02-26 CN CN 99231039 patent/CN2359339Y/en not_active Expired - Fee Related
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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 |