CN202812219U - Leak-proof stop valve - Google Patents
Leak-proof stop valve Download PDFInfo
- Publication number
- CN202812219U CN202812219U CN 201220423761 CN201220423761U CN202812219U CN 202812219 U CN202812219 U CN 202812219U CN 201220423761 CN201220423761 CN 201220423761 CN 201220423761 U CN201220423761 U CN 201220423761U CN 202812219 U CN202812219 U CN 202812219U
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- CN
- China
- Prior art keywords
- valve
- flap
- valve rod
- valve body
- stop valve
- 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 leak-proof stop valve which comprises a valve body, a valve rod, a valve clack and a control handle. The valve clack and the control handle are fixed at two ends of the valve rod, a passageway is arranged inside the valve body, two ends of the flow channel are respectively provided with a flow inlet and a flow outlet, the connecting position between the flow inlet and the flow outlet is a seal port, the valve clack is in the shape of an inverted round platform, vitrified enamel layers are arranged on the surfaces of the lower portions of the valve clack and the valve rod, the seal port is in the shape of an inverted round platform which is matched with the valve clack, an overflow port is formed in the bottom portion of the valve body, the corresponding overflow port is provided with a bottom cover, and a filter net is arranged inside the flow channel at the position of the corresponding flow outlet. The leak-proof stop valve is simple in structure, reliable in seal and long in service life.
Description
Technical field
The utility model relates to a kind of stop valve, particularly a kind of Leakproof stop valve.
Background technique
Traditional stop valve is made of valve body, valve rod, flap and Joystick, flap and Joystick are fixed on the valve rod two ends, Joystick band ovable valve stem moves up and down, valve rod drives flap and moves up and down, thereby realize the opening and closing of valve, be provided with runner in the valve body, the two ends of runner are respectively the influent stream mouth and go out head piece, and the influent stream mouth is sealed mouth with going out the head piece joint.The open-shut device of stop valve is the flap of stopper, sealing surface is plane or the conical surface, flap is along the center line moving linearly of valve body, the forms of motion of valve rod also has the lifting rotation rod-type, stop valve refers to the valve that flap moves along the valve body center line, this mobile form according to flap, the variation of valve body port is to be formed into proportional relationship with flap, because the valve rod of such valve is opened or shutoff stroke is relatively short, and has very a reliably cutting function, again because the variation of valve body port and the stroke relation in direct ratio of flap are very suitable for the adjusting to flow.Stop valve belongs to forced seal formula valve, so when valve closing, must exert pressure to flap, does not leak with forced seal face.When medium enters valve by the flap below, the required resistance that overcomes of steering force is the frictional force and the thrust that is produced by the pressure of medium of valve rod and filler, and the power that the force rate of closing valve is opened valve is large, so it is large that the diameter of valve rod is wanted, otherwise the fault of valve rod bending can occur.Can produce wearing and tearing between the flap of existing stop valve and the sealed mouth of valve body and between valve rod and the valve body, and then cause sealing unreliable, cause leaking, affect the working life of stop valve, cause waste.
Summary of the invention
It is a kind of simple in structure that the purpose of this utility model just is to provide, and sealing is reliable, and the Leakproof stop valve of long service life can effectively address the above problem.
To achieve these goals, the technical solution adopted in the utility model is such: Leakproof stop valve of the present utility model, comprise valve body, valve rod, flap and Joystick, flap and Joystick are fixed on the valve rod two ends, be provided with runner in the valve body, the two ends of runner are respectively the influent stream mouth and go out head piece, the influent stream mouth is sealed mouth with going out the head piece joint, described flap is reverse frustoconic, flap and stem lower portion surface are provided with enamel layer, and described sealed mouth is the reverse frustoconic that is complementary with flap, and described valve body bottom has overfall, corresponding overfall is provided with bottom, and the position that the interior correspondence of described runner goes out head piece is provided with filter screen.
As preferably, described bottom side is provided with seal ring.
As preferably, be socketed with seal ring on the described valve rod.
Compared with prior art, the utility model has the advantage of: the utility model is simple in structure, and is reasonable in design, flap and sealed mouth are designed to reverse frustoconic, make its sealing more reliable, and flap and valve rod are provided with enamel layer, make the corrosion-resistant and wearing and tearing of flap and valve rod, prevent leakage, prolong its working life, be provided with filter screen and dismountable bottom in the stop valve, can stop solid to stop up out head piece, and be convenient to clear up solid, easy to use, can be widely used in the water system.
Description of drawings
Fig. 1 is structural representation of the present utility model.
Among the figure: 1, valve body; 2, valve rod; 3, Joystick; 4, flap; 5, sealed mouth; 6, enamel layer; 7, bottom; 8, filter screen.
Embodiment
The utility model is described in further detail below in conjunction with accompanying drawing.
Referring to Fig. 1, Leakproof stop valve of the present utility model, comprise valve body 1, valve rod 2, flap 4 and Joystick, flap 4 and Joystick 3 are fixed on valve rod 2 two ends, be provided with runner in the valve body 1, the two ends of runner are respectively the influent stream mouth and go out head piece, the influent stream mouth is sealed mouth 5 with going out the head piece joint, and described flap 4 is reverse frustoconic, and flap 4 and valve rod 2 lower surface are provided with enamel layer 6, described sealed mouth 5 is the reverse frustoconic that is complementary with flap 4, described valve body 1 bottom has overfall, and corresponding overfall is provided with bottom 7, and the position that the interior correspondence of described runner goes out head piece is provided with filter screen 8, described bottom 7 sides are provided with seal ring, are socketed with seal ring on the described valve rod 2.
Working principle of the present utility model is the pressure that relies on valve rod 2, and flap 4 sealing surfaces and valve body 1 sealed mouth 5 are fitted tightly, thereby stops the medium circulation.Flap 4 and sealed mouth 5 are designed to reverse frustoconic, make its sealing more reliable, flap 4 and valve rod 2 are provided with enamel layer 6, make flap 4 and valve rod 2 corrosion-resistant and wearing and tearing, prevent leakage, increase simultaneously the diameter of valve rod 2, prevented valve rod 2 bending faults, prolonged its working life, be provided with filter screen 8 and dismountable bottom 7 in the stop valve, can stop solid to stop up out head piece, and be convenient to clear up solid, easy to use.
Claims (3)
1. Leakproof stop valve, comprise valve body, valve rod, flap and Joystick, flap and Joystick are fixed on the valve rod two ends, be provided with runner in the valve body, the two ends of runner are respectively the influent stream mouth and go out head piece, the influent stream mouth is sealed mouth with going out the head piece joint, it is characterized in that: described flap is reverse frustoconic, flap and stem lower portion surface are provided with enamel layer, described sealed mouth is the reverse frustoconic that is complementary with flap, described valve body bottom has overfall, and corresponding overfall is provided with bottom, and the position that the interior correspondence of described runner goes out head piece is provided with filter screen.
2. Leakproof stop valve according to claim 1, it is characterized in that: described bottom side is provided with seal ring.
3. Leakproof stop valve according to claim 1 is characterized in that: be socketed with seal ring on the described valve rod.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220423761 CN202812219U (en) | 2012-08-24 | 2012-08-24 | Leak-proof stop valve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220423761 CN202812219U (en) | 2012-08-24 | 2012-08-24 | Leak-proof stop valve |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202812219U true CN202812219U (en) | 2013-03-20 |
Family
ID=47871089
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201220423761 Expired - Fee Related CN202812219U (en) | 2012-08-24 | 2012-08-24 | Leak-proof stop valve |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202812219U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103629364A (en) * | 2012-08-24 | 2014-03-12 | 成都科兴密封技术有限公司 | Leakage-proof stop valve |
-
2012
- 2012-08-24 CN CN 201220423761 patent/CN202812219U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103629364A (en) * | 2012-08-24 | 2014-03-12 | 成都科兴密封技术有限公司 | Leakage-proof stop valve |
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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: 20130320 Termination date: 20130824 |