CN201420868Y - Soft seal gate valve - Google Patents
Soft seal gate valve Download PDFInfo
- Publication number
- CN201420868Y CN201420868Y CN2008202063344U CN200820206334U CN201420868Y CN 201420868 Y CN201420868 Y CN 201420868Y CN 2008202063344 U CN2008202063344 U CN 2008202063344U CN 200820206334 U CN200820206334 U CN 200820206334U CN 201420868 Y CN201420868 Y CN 201420868Y
- Authority
- CN
- China
- Prior art keywords
- bonnet
- valve
- valve body
- flashboard
- soft
- 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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Abstract
The utility model discloses a soft seal gate valve, which comprises a valve body, wherein two ends of the valve body are respectively provided with an inlet and an outlet, the valve body is provided with a valve bonnet, and a valve rod is arranged inside the valve bonnet; one end of the valve rod is connected with a flashboard in a threading way which can move from top to bottom so as to realize the opening and the closing of an inner passage of the valve body; a cavity which can accommodate the valve rod is arranged inside the flashboard, and two sides of the flashboard are respectively provided with a gasket ring; and the valve bonnet is provided with a soft seal pressure releasing plug which can facilitate the exhaustion of the air medium inside the cavity between the valve body and thevalve bonnet. In order to overcome the weaknesses of the prior art, the utility model provides the soft seal gate valve which has simple structure, double seals, good sealability and safety.
Description
Technical field
The utility model relates to a kind of soft sealing gate valve.
Background technique
At present, gate valve on the market generally all is to be provided with sealing together on flashboard, the combustion gas that tends to some when gate valve is closed enters the cavity between bonnet and the valve body, flow to an other end then, do not reach good sealability, if the cavity of combustion gas between bonnet and valve body gathers in a large number, its air pressure is excessive all influential to devices such as valve rods, and be easy to meet accident, its Safety performance can not get good assurance.
The model utility content
The purpose of this utility model is in order to overcome deficiency of the prior art, to provide a kind of simple in structure, double seal is arranged, good seal performance, and the soft sealing gate valve of safety.
In order to achieve the above object, the utility model adopts following scheme:
A kind of soft sealing gate valve comprises valve body, is respectively equipped with import and outlet at the valve body two ends, is provided with bonnet on described valve body, is provided with valve rod in this bonnet; Thereby be connected with one at the valve rod threaded one end and can upper and lowerly move the flashboard of realizing the opening and closing of valve body internal channel; Be provided with the cavity of the ccontaining valve rod of an energy in this flashboard, in addition, the flashboard both sides also are respectively equipped with seal ring; On described bonnet, be provided with and make between valve body and the bonnet in the cavity gas medium discharge extraneous soft seal release of pressure plug;
The soft sealing gate valve valve rod top of mentioning in the above is provided with limiting stopper near the place of bonnet upper end, is provided with one in its outside and can makes valve rod be fixed on cork on the bonnet;
Be the tenon-slot type sealing between aforesaid bonnet and the valve body;
In above-mentioned soft sealing gate valve, its flashboard upper end is provided with contiguous block, is provided with internal thread in this contiguous block, then is provided with outside thread on the described valve rod, so that realize being connected of screw rod and flashboard by this worm structure;
In this soft sealing gate valve, its bonnet is a cast-in-block, and is provided with an opening that can communicate with the external world.The one soft seal release of pressure plug that can seal this opening is arranged on being threaded of this opening, and this soft seal release of pressure plug front end intermediate portion is provided with a center-aisle and vertical with it release of pressure passage.
In sum, the utility model with respect to its beneficial effect of prior art is: adopt in the utility model seal ring to be set on flashboard and at valve rod and bonnet joint seal ring to be set, realize double seal, well improved Safety performance of the present utility model; The utility model is provided with on bonnet and can makes between valve body and the bonnet in the cavity gas medium discharge extraneous soft seal release of pressure plug; Guarantee that the cavity between valve body and the bonnet can not cause unexpected generation because of air pressure is excessive, has improved the Safety performance of the utility model gate valve.
Description of drawings
Fig. 1 is a generalized section of the present utility model;
Fig. 2 is the enlarged view at A place among Fig. 1;
Fig. 3 is the enlarged view at B place among Fig. 1;
Fig. 4 be among Fig. 3 C-C to generalized section.
Embodiment
Below in conjunction with description of drawings and embodiment the utility model is further described:
A kind of soft sealing gate valve shown in Fig. 1 to 4, comprise valve body 1, be respectively equipped with import 11 and outlet 12 at valve body 1 two ends, on described valve body 1, be provided with bonnet 2, in described bonnet 2, be provided with valve rod 3, on the energy that has been threaded on valve rod 3 one ends, move down, thereby the flashboard 4 of opening and closing valve body 1 internal channel, in described flashboard 4, be provided with the cavity 6 of the ccontaining valve rod 3 of an energy, it is characterized in that: be respectively equipped with seal ring 5 on described flashboard 4 both sides, on described bonnet 2, be provided with and make between valve body 1 and the bonnet 2 in the cavity gas medium discharge extraneous soft seal release of pressure plug 10.
Be provided with limiting stopper 8 on described valve rod 3 tops near the place of bonnet 2 upper ends during this is novel, outside limiting stopper 8, be provided with one and can make valve rod 3 be fixed on cork 9 on the bonnet 2.For the tenon-slot type sealing, in groove, put into special-shaped rubber washer between described bonnet 2 and the valve body 1, fix with the fastening piece of bolt and so on again, on bolt hole, seal then, can reach a good sealing effect with the hot wax of one deck.Be provided with contiguous block 7 in described flashboard 4 upper ends, be provided with internal thread in described contiguous block 7, be provided with outside thread on described valve rod 3, described valve rod 3 is connected on the described contiguous block 7.Described bonnet 2 is cast-in-block bonnets, because bonnet 2 helps reducing the leakage problem that bonnet 2 places may occur for cast inblock, increases the Security that has improved gate valve.
On bonnet 2, be provided with an opening that can communicate in the utility model with the external world, a soft seal release of pressure plug 10 that can seal this opening is threaded on described opening, be provided with a center-aisle at described soft seal release of pressure plug 10 front end intermediate portions, on front end on the soft seal release of pressure plug 10, be provided with the release of pressure passage of vertical described center-aisle.When soft seal release of pressure plug 10 is opened, can make the interior gas medium discharge of the cavity external world between valve body and the bonnet, guaranteed the Safety performance of valve body and bonnet effectively.
Claims (6)
1,-kind of soft sealing gate valve, comprise valve body (1), be respectively equipped with import (11) and outlet (12) at valve body (1) two ends, on described valve body (1), be provided with bonnet (2), in described bonnet (2), be provided with valve rod (3), on valve rod (3)-end has been threaded an energy, move down, thereby the flashboard (4) of opening and closing valve body (1) internal channel, in described flashboard (4), be provided with the cavity (6) of a ccontaining valve rod of energy (3), it is characterized in that: be respectively equipped with seal ring (5) on described flashboard (4) both sides, on described bonnet (2), be provided with and make between valve body (1) and the bonnet (2) in the cavity gas medium discharge extraneous soft seal release of pressure plug (10).
2, according to claim 1-kind of soft sealing gate valve, it is characterized in that on described valve rod (3) top being provided with limiting stopper (8), outside limiting stopper (8), be provided with one and can make valve (3) be fixed on cork (9) on the bonnet (2) near the place of bonnet (2) upper end.
3, according to claim 1-kind of soft sealing gate valve is characterized in that being between described bonnet (2) and the valve body (1) the tenon-slot type sealing.
4, according to claim 1-kind of soft sealing gate valve, it is characterized in that being provided with contiguous block (7) in described flashboard (4) upper end, in described contiguous block (7), be provided with internal thread, be provided with outside thread on described valve rod (3), described valve rod (3) is connected on the described contiguous block (7).
5, according to claim 1-kind of soft sealing gate valve is characterized in that described bonnet (2) is the cast-in-block bonnet.
6, according to claim 1-kind of soft sealing gate valve, it is characterized in that on bonnet (2), being provided with an opening that can communicate with the external world, a soft seal release of pressure plug (10) that can seal this opening is threaded on described opening, be provided with a center-aisle at described soft seal release of pressure plug (10) front end intermediate portion, go up the release of pressure passage that is provided with vertical described center-aisle on the front end at soft seal release of pressure plug (10).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2008202063344U CN201420868Y (en) | 2008-12-29 | 2008-12-29 | Soft seal gate valve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2008202063344U CN201420868Y (en) | 2008-12-29 | 2008-12-29 | Soft seal gate valve |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201420868Y true CN201420868Y (en) | 2010-03-10 |
Family
ID=41807525
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2008202063344U Expired - Fee Related CN201420868Y (en) | 2008-12-29 | 2008-12-29 | Soft seal gate valve |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201420868Y (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103075531A (en) * | 2012-12-27 | 2013-05-01 | 安徽铜陵科力阀门有限责任公司 | Gate valve exhaust combined valve |
-
2008
- 2008-12-29 CN CN2008202063344U patent/CN201420868Y/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103075531A (en) * | 2012-12-27 | 2013-05-01 | 安徽铜陵科力阀门有限责任公司 | Gate valve exhaust combined valve |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20100310 Termination date: 20141229 |
|
| EXPY | Termination of patent right or utility model |