CN201228360Y - Manhole cover - Google Patents
Manhole cover Download PDFInfo
- Publication number
- CN201228360Y CN201228360Y CNU2008200636106U CN200820063610U CN201228360Y CN 201228360 Y CN201228360 Y CN 201228360Y CN U2008200636106 U CNU2008200636106 U CN U2008200636106U CN 200820063610 U CN200820063610 U CN 200820063610U CN 201228360 Y CN201228360 Y CN 201228360Y
- Authority
- CN
- China
- Prior art keywords
- annular groove
- manhole cover
- lateral face
- ring
- sealing ring
- 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 - Lifetime
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- Underground Structures, Protecting, Testing And Restoring Foundations (AREA)
Abstract
The utility model discloses an inspection cover, which comprises a cover board and is characterized in that at least two ring grooves are arranged on the internal lateral face and the external lateral face of the cover board at intervals; a plurality of bolt holes are arranged in the outermost ring groove on the external lateral face; a gasket ring is arranged in the ring groove on the internal lateral face tightly close to the close to ring groove; and the gasket ring is an epsilon-type gasket ring, which is the further improvement of the inspection cover. The inspection cover has the advantages of lower cost, convenient manufacture and good sealing effect.
Description
Technical field
The utility model relates to a kind of manhole cover.
Background technology
Manhole cover is widely used on various hydraulic tests and the pipeline, existing manhole cover, as shown in Figure 1, bolt hole 6 on its cover plate 5 and seal groove 7 all form by machining, and this just causes the thickness of cover plate 1 thicker, and cost is higher, and manufacturing procedure is many, makes difficulty; Sealing ring 8 in the seal groove 7 mostly is the O RunddichtringO, and its deflection is little, and sealing effectiveness is poor.
The utility model content
The purpose of this utility model is the above-mentioned deficiency at prior art, and a kind of manhole cover is provided, and it has, and cost is lower, easy to process, advantage of good sealing effect.
For achieving the above object, a kind of manhole cover of the present utility model comprises cover plate, it is characterized in that the compartment of terrain is provided with twice annular groove at least on the interior lateral surface of cover plate, in the lateral surface annular groove of outermost end, be provided with several bolts hole, in the medial surface annular groove of this annular groove of next-door neighbour, be provided with sealing ring;
The cover plate of this structure is because can be by the punching press one-shot forming, and cover plate is thinner, and cost is lower, and easy to process;
As further improvement of the utility model, described sealing ring is a mountain font sealing ring, and its deflection is big, good sealing effect;
In sum, the utlity model has that cost is lower, easy to process, advantage of good sealing effect.
Description of drawings
Fig. 1 is the front view of existing manhole cover.
Fig. 2 is the front view of the utility model embodiment.
Fig. 3 is the vertical view of Fig. 2.
The specific embodiment
By Fig. 2 and shown in Figure 3, the manhole cover of this embodiment, the compartment of terrain is provided with the twice annular groove on the interior lateral surface of cover plate 1, is provided with several bolts hole 3 in the lateral surface annular groove 2 of outermost end, next-door neighbour this annular groove 2 the medial surface annular groove in by the bonding mountain font sealing ring 4 that is provided with.
Claims (2)
1. a manhole cover comprises cover plate, it is characterized in that the compartment of terrain is provided with twice annular groove at least on the interior lateral surface of cover plate, is provided with several bolts hole in the lateral surface annular groove of outermost end, is provided with sealing ring in the medial surface annular groove of this annular groove of next-door neighbour.
2. a kind of manhole cover as claimed in claim 1 is characterized in that described sealing ring is a mountain font sealing ring.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2008200636106U CN201228360Y (en) | 2008-05-30 | 2008-05-30 | Manhole cover |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2008200636106U CN201228360Y (en) | 2008-05-30 | 2008-05-30 | Manhole cover |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201228360Y true CN201228360Y (en) | 2009-04-29 |
Family
ID=40633312
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNU2008200636106U Expired - Lifetime CN201228360Y (en) | 2008-05-30 | 2008-05-30 | Manhole cover |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201228360Y (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102653337A (en) * | 2012-01-16 | 2012-09-05 | 无锡新开河储罐有限公司 | Lower discharging manhole cover for sealed steel lining plastic preservative solution |
-
2008
- 2008-05-30 CN CNU2008200636106U patent/CN201228360Y/en not_active Expired - Lifetime
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102653337A (en) * | 2012-01-16 | 2012-09-05 | 无锡新开河储罐有限公司 | Lower discharging manhole cover for sealed steel lining plastic preservative solution |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CX01 | Expiry of patent term |
Granted publication date: 20090429 |
|
| CX01 | Expiry of patent term |