CN201723747U - Soft sealing gate valve - Google Patents
Soft sealing gate valve Download PDFInfo
- Publication number
- CN201723747U CN201723747U CN2010201342215U CN201020134221U CN201723747U CN 201723747 U CN201723747 U CN 201723747U CN 2010201342215 U CN2010201342215 U CN 2010201342215U CN 201020134221 U CN201020134221 U CN 201020134221U CN 201723747 U CN201723747 U CN 201723747U
- Authority
- CN
- China
- Prior art keywords
- valve
- valve body
- flashboard
- gate plate
- soft sealing
- 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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- Sliding Valves (AREA)
Abstract
The utility model relates to a soft sealing gate valve comprising a valve body, a gate plate and a valve rod, wherein the gate plate moves up and down along the slideways of the gate plate, the slideways of the gate plate are arranged at both sides in the valve body, and the valve rod operates the gate plate to move up and down so as to achieve opening and closing. The contact positions of the sliding chutes of the gate plate and the slideways of the gate plate are provided with pressure protection grooves for relieving liquid pressure, and the sliding chutes of the gate plate are arranged at both sides of the valve body. The gate plate is formed by coating a layer of rubber material at the outer surface of a substrate of a cast, and the inner wall of the valve body and the outer surface of the valve body are sprayed with an innoxious and smellless RAL7040 resin powder coating layer. Three-passage plane sealing contact is adopted between the lower part of the gate plate and a flow passage of the valve body. The utility model adopts the structure that the gate plate is coated with a layer of rubber, and the inner wall of the valve body is sprayed with the innoxious resin powder coating layer, which obstructs the contact of liquid and metal thoroughly and can not cause secondary pollution. The valve has the characteristics of high-temperature resistance, high-pressure resistance and corrosion resistance, the tensile strength of a valve component is high, and the use is safer. The starting of the valve is flexible, the three-passage sealing of the gate plate can completely cut off a water flow, and the service life of the valve is ensured.
Description
Technical field
The utility model relates to valve, particularly relates to a kind of soft sealing gate valve.
Background technique
Gate valve is widely used on the pipeline of plumbing, as regulating and one of valve that throttling is used, and the purpose that the lifting by flashboard reaches unlatching or closes.The sealing position of the valve body of existing gate valve, flashboard and flashboard all needs machining to form.Directly contact, in use very easily get rusty, both made and taked contacting of finish coatings blocking-up liquid and metal with fed sheet of a media, not dispatching from the factory of having lacquer painting just occurs and comes off, and fed sheet of a media is polluted in corrosion, especially be used on the tap water pipe line, cause secondary pollution to tap water.Flashboard, the lock groove fitted seal of adopting because flashboard bottom and valve flowing channel position are sealed and matched more, not only can cause the increase of liquid flowing resistance and pressure, and the accumulation that easily produces foreign material in the lock groove, influence closing gate, poorly sealed, to run improperly, open moment big.Valve adopts the common grey iron manufacturing, and tensile strength is low, be installed on the pipeline after, be unable to undergo pipeline and stretch, be easy to occur explosion, cause the generation of water supply fault.
The model utility content
The technical problems to be solved in the utility model provides a kind of not corrosion no secondary pollution, and opening/shutting valve is flexible, good seal, and keying moment is little, rational in infrastructure, improves safe again soft sealing gate valve in working life.
The technological scheme that adopts is:
A kind of soft sealing gate valve, the flashboard that comprise valve body, moves up and down along both sides flashboard slideway in the valve body and handle flashboard and move up and down and reach the valve rod of keying.The flashboard chute of described flashboard both sides and flashboard slideway contact position are provided with the pressure protect groove that alleviates fluid pressure.Described flashboard is to coat one deck rubber material layer by the foundry goods outer surface of matrix to constitute, and is coated with nonpoisonous and tasteless RAL7040 toner (commercial) coating layer at valve interior wall and valve outer surface.
Adopt three road rubber seals between above-mentioned flashboard bottom and valve flowing channel, three road rubber seals and flashboard outer surface rubber layer are connected to become an integral body, and three road rubber seals form three road plane sealings with valve flowing channel and contact.
Above-mentioned valve body, flashboard and valve foundry goods all adopt the QT450-10 material.
The above-mentioned rubber-coated material layer of flashboard outer surface, be to fall to restraining tackiness agent (import) brush at the flashboard casting surface with triumphant mother, put into metal mold, be forced into 80-120MPa die cast in metal mold with heating to 130 ℃ EPDM rubber (commercial product), working pressure machine.
Above-mentioned valve interior wall and valve outer surface spraying RAL7040 toner coating layer, be that the valve body that will be coated with RAL7040 is put into and had 270-300 ℃ of high temperature baking box, valve body is entered heat behind the baking box reach 200-230 ℃ at least 5 hours, sprayed surface is finished to solidify and is formed.
Advantage of the present utility model is:
1, flashboard outer surface and bottom three seals EPDM super heated rubber die cast; high temperature resistant, high pressure resistant, corrosion-resistant characteristic have been played; its three seals cuts off flowing water pressure fully, and both having made has impurity to cut off flowing water pressure equally in the water, and the working life of valve has been protected in soft seal.
2, valve interior wall is coated with nonpoisonous and tasteless toner coating and adopts the high temperature baking vanish, and cohesive force is strong, has avoided the lacquer painting disengaging, thoroughly blocks the no secondary pollution that contacts of liquid and metal.
3, flashboard is provided with the pressure protect groove that alleviates water pressure, and pressure in the mediation water reduces throttle down firmly, and valve is started flexibly, also prevents from that the flashboard foundry goods from separating with rubber simultaneously valve integral body is scrapped.
4, the foundry goods of valve body, flashboard and valve all adopts the QT450-10 material, and the tensile strength height is avoided being installed in and stretched by pipeline and explosion.
Description of drawings
Fig. 1 is a structural representation of the present utility model.
Fig. 2 is flashboard of the present utility model and valve body installation position enlarged view.
Fig. 3 is flashboard of the present utility model and valve body flashboard slideway connection diagram.
Fig. 4 is the A place enlarged view of Fig. 3.
Fig. 5 is a flashboard of the present utility model bottom three seals schematic representation.
Fig. 6 is the C-C sectional drawing of Fig. 5.
Embodiment
A kind of soft sealing gate valve, the flashboard 2 that comprise valve body 1, moves up and down along both sides flashboard slideway 5 in the valve body and handle the valve rod 3 that flashboard moves up and down and reaches keying.The flashboard chute 6 and flashboard slideway 5 contact position of described flashboard 2 both sides are provided with the pressure protect groove 7 that alleviates fluid pressure.The foundry goods of described valve body 1, flashboard 2 and valve all adopts the high spheroidal graphite cast iron QT450-10 of tensile strength material, flashboard 2 is to fall to restraining the tackiness agent brush at the flashboard casting surface by triumphant mother, put into metal mold, be forced into 100MPa die cast in metal mold with EPDM rubber, the working pressure machine of heating to 130 ℃, make flashboard 2 cast outer surface coat one deck rubber material layer 4, simultaneously flashboard 2 bottom rubber material layers form that employing three road plane sealings contact between three road rubber seals, 8,9,10, three road rubber seals and valve body 1 runner.Described valve body 1 inwall and valve body 1 outer surface are coated with RAL7040 toner coating layer and put into has 270-300 ℃ of high temperature baking box, valve body is entered heat behind the baking box reach 210 ℃ at least 5 hours, sprayed surface is finished to solidify and is formed bottle green and form firm nonpoisonous and tasteless toner coating layer.
Claims (3)
1. soft sealing gate valve; the flashboard (2) that comprises valve body (1), moves up and down along both sides flashboard slideway (5) in the valve body and handle the valve rod (3) that flashboard moves up and down and reaches keying; the flashboard chute (6) that it is characterized in that described flashboard (2) both sides is provided with the pressure protect groove (7) that alleviates fluid pressure with flashboard slideway (5) contact position; described flashboard (2) is to coat one deck rubber material layer (4) by the foundry goods outer surface of matrix to constitute, and is coated with nonpoisonous and tasteless RAL7040 toner coating layer at valve body (1) inwall and valve body (1) outer surface.
2. a kind of soft sealing gate valve according to claim 1, it is characterized in that adopting between described flashboard (2) bottom and valve body (1) runner three road rubber seals (8,9,10), three road rubber seals (8,9,10) are connected to become an integral body with flashboard (2) outer surface rubber material layer (4), and three road rubber seals (8,9,10) form three road plane sealings with valve flowing channel and contact.
3. a kind of soft sealing gate valve according to claim 1 is characterized in that described valve body (1), flashboard (2) adopt the QT450-10 material.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010201342215U CN201723747U (en) | 2010-03-18 | 2010-03-18 | Soft sealing gate valve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010201342215U CN201723747U (en) | 2010-03-18 | 2010-03-18 | Soft sealing gate valve |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201723747U true CN201723747U (en) | 2011-01-26 |
Family
ID=43492074
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2010201342215U Expired - Fee Related CN201723747U (en) | 2010-03-18 | 2010-03-18 | Soft sealing gate valve |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201723747U (en) |
-
2010
- 2010-03-18 CN CN2010201342215U patent/CN201723747U/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 | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20110126 Termination date: 20130318 |