CN201634132U - Venting manhole device - Google Patents
Venting manhole device Download PDFInfo
- Publication number
- CN201634132U CN201634132U CN2010201361610U CN201020136161U CN201634132U CN 201634132 U CN201634132 U CN 201634132U CN 2010201361610 U CN2010201361610 U CN 2010201361610U CN 201020136161 U CN201020136161 U CN 201020136161U CN 201634132 U CN201634132 U CN 201634132U
- Authority
- CN
- China
- Prior art keywords
- manhole
- manhole cover
- venting
- utility
- folding
- 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
Images
Abstract
The utility model relates to a venting manhole device, which comprises a manhole base, a manhole cover, an integrated anti-theft bolt and a foldout, and is characterized in that a pressure releasing valve is arranged on the manhole cover, and an auxiliary opening spring is arranged on a shaft of the foldout of the manhole cover. The device has the advantages of smooth ventilation, good sealing performance, high reliability, and convenient operation and maintenance.
Description
Technical field
The utility model relates to a kind of vented manhole device, belongs to access opening device field.
Background technology
At present, domestic most of powder class material transportation is mainly based on the pot type transportation, and this transportation mode adopts Pneumatic Conveying Technology usually when discharging, the depended on pressure air carries out discharging, because the sealing property at manhole position is relatively poor, there is serious gas leak phenomenon, causes tank interior medium residual quantity to exceed standard; Simultaneously, because existing powder class transportation tank car is provided with exhaust gear in the tank body center of top, this device is used to get rid of tank interior residual pressure air after discharging finishes, when loading and unloading powder class medium, filter cloth in this device is often blocked, causes a jar interior overbottom pressure to discharge, and work and service personnel can not enter the tank interior operation, and this device is not easy to maintenance, for normal operation is made troubles.
Summary of the invention
The purpose of this utility model is to have problem and the defective that powder class medium transportation tank car exists now in order to overcome, and the strong vented manhole device of a kind of reliability of service height, alerting ability who provides.
The purpose of this utility model realizes with the following methods:
The utility model comprises manhole collar, manhole cover, integral type anti-theft bolt, folding, it is characterized in that: be provided with a purge valve on manhole cover, be provided with on the axle of manhole cover folding and help out spring.
The utility model has the advantages that: exhaust is smooth and easy, good seal performance, reliability height, be convenient to Operation and maintenance.
Description of drawings
Fig. 1 is a structural representation of the present utility model;
Fig. 2 is the birds-eye view of Fig. 1.
The specific embodiment
With reference to accompanying drawing, the utility model comprises manhole collar 1, manhole cover 3, integral type anti-theft bolt 2, folding 4, the integral type anti-theft bolt is an eyelet bolt, be installed on the manhole collar 1, folding 4 is connected as a whole with manhole cover 3 manhole collar 1, on manhole cover 3, be provided with a purge valve 5, can use for overbottom pressure in the drain tank; On the axle of the folding 4 of manhole cover, be provided with and help out spring 6, help the labour intensity that reduces a staff.During installation, be the center, manhole collar 1 be fixed on the tank body that manhole cover 3 rotates to open manhole around hinge shaft with the hinge shaft.
Claims (1)
1. a vented manhole device comprises manhole collar, manhole cover, integral type anti-theft bolt, folding, it is characterized in that: be provided with a purge valve on manhole cover, be provided with on the axle of manhole cover folding and help out spring.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010201361610U CN201634132U (en) | 2010-02-22 | 2010-02-22 | Venting manhole device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010201361610U CN201634132U (en) | 2010-02-22 | 2010-02-22 | Venting manhole device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201634132U true CN201634132U (en) | 2010-11-17 |
Family
ID=43078618
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2010201361610U Expired - Fee Related CN201634132U (en) | 2010-02-22 | 2010-02-22 | Venting manhole device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201634132U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102092542A (en) * | 2011-01-11 | 2011-06-15 | 包头市北工机械有限公司 | Manhole device of tank truck |
| CN109867017A (en) * | 2017-12-01 | 2019-06-11 | 基立福环球运营有限公司 | The equipment for being used to open and being closed container cover |
-
2010
- 2010-02-22 CN CN2010201361610U patent/CN201634132U/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102092542A (en) * | 2011-01-11 | 2011-06-15 | 包头市北工机械有限公司 | Manhole device of tank truck |
| CN109867017A (en) * | 2017-12-01 | 2019-06-11 | 基立福环球运营有限公司 | The equipment for being used to open and being closed container cover |
| CN109867017B (en) * | 2017-12-01 | 2022-03-25 | 基立福环球运营有限公司 | Device for opening and closing a container lid |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN201834445U (en) | Opening pressure detecting device for breather valve of oil storage tank | |
| CN201634132U (en) | Venting manhole device | |
| CN201882488U (en) | Quick-open manhole | |
| CN201834373U (en) | Vacuum transition tank | |
| CN204675160U (en) | A kind of tanker manhole lid | |
| CN201334007Y (en) | External automatic drain valve | |
| CN211175530U (en) | Activated carbon canister cut-off valve with overvoltage protection | |
| CN204433546U (en) | A kind of Novel dump type waste-skip | |
| CN203601836U (en) | Dry powder sealing storage and transportation device | |
| CN201647986U (en) | Oil-gas recovery eccentric rotary sealing device of tank-truck loading arm | |
| CN203318230U (en) | Dust discharging sealing cover | |
| CN202575961U (en) | Bag-type sealing cover for loading and unloading of tanker oil product | |
| CN204436626U (en) | A kind of reinforced evaporative emission control system | |
| CN104016026A (en) | Improved type tank container for hydrogen peroxide | |
| CN202465261U (en) | Hook-type locking and sealing device for recovering tank-truck oil gas | |
| CN201873513U (en) | Oil gas recovery sealing device of light oil loading and unloading vehicle | |
| CN207140787U (en) | Fuel tank mechanism | |
| CN208560462U (en) | Carbon black tank discharging quick-opening device | |
| CN104564437A (en) | Enhanced-type fuel evaporation discharge control system | |
| CN209622097U (en) | A kind of novel negative pressure air valve | |
| CN202912685U (en) | Light oil vehicle loading arm and closing vehicle loading device | |
| CN212830555U (en) | Double-manhole device of fresh milk transport vehicle | |
| CN203906769U (en) | Interior sealed manhole structure | |
| CN202400083U (en) | Automatic water drain valve | |
| CN204267816U (en) | A kind of huge discharge relief valve |
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: 20101117 Termination date: 20120222 |