CN2606136Y - Improved antitheft manhole cover - Google Patents
Improved antitheft manhole cover Download PDFInfo
- Publication number
- CN2606136Y CN2606136Y CN 03220782 CN03220782U CN2606136Y CN 2606136 Y CN2606136 Y CN 2606136Y CN 03220782 CN03220782 CN 03220782 CN 03220782 U CN03220782 U CN 03220782U CN 2606136 Y CN2606136 Y CN 2606136Y
- Authority
- CN
- China
- Prior art keywords
- base
- loam cake
- pivoted arm
- manhole cover
- projection
- 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
Landscapes
- Underground Structures, Protecting, Testing And Restoring Foundations (AREA)
Abstract
An improved antitheft manhole cover belongs to an underground passage device. The utility model comprises an upper cover and a base, wherein, the upper cover is connected with the base by a swiveling jib. Pin jointers between the swiveling jib and the upper cover, the swiveling jib and base are in disalignment. A protruding block is arranged on the top of the base. A swiveling jib protruding block is arranged under the protruding block. The utility model is safe in operation and the pin jointers can be maintained clean chronically, thereby improving the operation cycle of the manhole.
Description
Technical field
The utility model belongs to underground passage equipment, refers to a kind of anti-stealing manhole cover especially.
Technical background
Chinese patent CN99228844.4 discloses a kind of " anti-stealing manhole cover ", connect a movable block between its loam cake and the base, one end of this movable block is hinged by a fixed hinge and base, the other end of movable block is hinged by a hinges and loam cake, 180 degree of realizing loam cake rotate, and the deficiency of existence is when loam cake closes, and there is the space in the junction of base and hinge, dust and impurity easily fall into the back and are difficult to cleaning, can influence the upset of loam cake after of long duration.
Summary of the invention
The utility model is just in order to overcome above-mentioned deficiency, provide a kind of and can turn over the anti-stealing manhole cover that turnback stops the hinged place to have foreign material to fall into again, it mainly improves and is to connect with a pivoted arm between loam cake and base, and the base top is provided with a projection and is used to stop foreign material.Specifically implement like this: a kind of improved anti-stealing manhole cover, comprise loam cake and base, it is characterized in that connecting the pin joint point decentraction of pivoted arm and loam cake, base between loam cake and the base by a pivoted arm, the base top is equipped with a projection, and described projection cooperation down is equipped with the pivoted arm projection.By the projection that the base top is set up, avoided dust to enter the space that is connected of pivoted arm and base, prolonged the operating period, projection on base top and the pivoted arm cooperatively interacts simultaneously, make that pivoted arm is fixed when upwards turning over an angle of 90 degrees when cover plate is started, cover plate can be opened to 180 degree naturally.
The utility model has the advantages that, when loam cake closes, the base projection has covered the pin joint space of base and pivoted arm, avoid dust and other impurities to enter, when loam cake was opened, pivoted arm rotated and exceeds base and is fixed, and loam cake can open 180 degree and lie against ground, not only safe in utilization and can keep the cleaning at pin joint place for a long time, improved the life cycle of inspection shaft.
Description of drawings
Accompanying drawing is a structural representation of the present utility model.
The specific embodiment
A kind of improved anti-stealing manhole cover, connect by a pivoted arm (3) between loam cake (1) and the base (2), the pin joint point decentraction of pivoted arm (3) and loam cake (1), base (2), base (2) top is equipped with a projection (4), and this projection (4) cooperation down is equipped with pivoted arm projection (5).
Claims (1)
- A kind of improved anti-stealing manhole cover comprises loam cake and base, it is characterized in that connecting by a pivoted arm between loam cake and the base, and the pin joint point decentraction of pivoted arm and loam cake, base, the base top is equipped with a projection, and described projection cooperation down is equipped with the pivoted arm projection.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 03220782 CN2606136Y (en) | 2003-03-27 | 2003-03-27 | Improved antitheft manhole cover |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 03220782 CN2606136Y (en) | 2003-03-27 | 2003-03-27 | Improved antitheft manhole cover |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2606136Y true CN2606136Y (en) | 2004-03-10 |
Family
ID=34162086
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 03220782 Expired - Fee Related CN2606136Y (en) | 2003-03-27 | 2003-03-27 | Improved antitheft manhole cover |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2606136Y (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106677223A (en) * | 2017-03-06 | 2017-05-17 | 成都飞航沛腾科技有限公司 | Antitheft municipal manhole cover |
| CN110528581A (en) * | 2019-09-09 | 2019-12-03 | 安徽省飞龙新型材料有限公司 | A kind of level ground well cover of automatic opening |
-
2003
- 2003-03-27 CN CN 03220782 patent/CN2606136Y/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106677223A (en) * | 2017-03-06 | 2017-05-17 | 成都飞航沛腾科技有限公司 | Antitheft municipal manhole cover |
| CN110528581A (en) * | 2019-09-09 | 2019-12-03 | 安徽省飞龙新型材料有限公司 | A kind of level ground well cover of automatic opening |
| CN110528581B (en) * | 2019-09-09 | 2021-03-19 | 安徽省飞龙新型材料有限公司 | Automatic open plateau ground well lid |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20040310 Termination date: 20100327 |