CN201902616U - One-way valve - Google Patents
One-way valve Download PDFInfo
- Publication number
- CN201902616U CN201902616U CN2010206930853U CN201020693085U CN201902616U CN 201902616 U CN201902616 U CN 201902616U CN 2010206930853 U CN2010206930853 U CN 2010206930853U CN 201020693085 U CN201020693085 U CN 201020693085U CN 201902616 U CN201902616 U CN 201902616U
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- China
- Prior art keywords
- valve
- valve body
- spring
- valve rod
- damping plate
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- Expired - Fee Related
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Abstract
The utility model discloses a one-way valve, which comprises a valve seat, a valve body and a valve rod, wherein the valve rod passes through a spring arranged in the valve body; one end of the spring is fixed on the valve body, and the other end of the spring is connected with a sealing disk and can stretch out and draw back to move up and down; and a damping plate is connected onto the valve rod and arranged in a piston driving device fixed on the valve body. The one-way valve is also provided with a limiting stopper, which is arranged between the damping plate and one end of the valve rod. Because the limiting stopper is arranged, the closing time and speed of the valve can be controlled effectively; in addition, the valve can be disassembled integrally, thereby improving the efficiency of maintenance and overhaul; and besides, because of a Y-shaped or a horn-shaped design, the one-way valve has the characteristic of precise pressure (flow rate) control.
Description
Technical field
Related domain relates to a kind of valve, relates in particular to a kind of safety check.
Background technique
Valve is a kind of general parts, and it has multiple classification.Wherein, safety check (One-way valve) is a kind of more common equipment, and safety check claims one-way valve or check valve again, and its effect is to prevent that the medium in the pipeline from flowing backwards.
Safety check (One-way valve): divide by structure, can be divided into three kinds of Lift check valve, Swing check valve and butterfly check valves.Wherein, Lift check valve is more common a kind of.Be divided into straight-through type and vertical two kinds, wherein the straight-through type lift check valve generally can only be installed in horizontal pipeline, and vertical lift check valve generally just is installed in vertical duct.The Lift check valve flap is done elevating movement with line in passage, reliable in action, but fluid resistance is bigger, is applicable to light small-bore occasion.
Usually, safety check is used in the middle of water pump and the wet pit more, and the pressure of water is opened valve and entered wet pit or water storage tank when pump working, and water pump quits work when retaining reaches certain water level or pressure, this moment, water will flow backwards, and the water of adverse current is pushed into closed condition to valve plate under pressure.
The flap of safety check is opened under fluid pressure action, and fluid flows to outlet side from suction side.When suction side pressure was lower than outlet side, flap was closed under factor effects such as fluid pressure difference, gravity own automatically in case the fluid stopping body flows backwards.
The model utility content
The utility model proposes a kind of novel safety check, this safety check is by effective control valve shut-in time of snubber and speed, and, be active in one's movements, good seal performance.
The utility model solves the problems of the technologies described above the technological scheme that adopted as following description:
A kind of safety check, comprise valve seat, valve body and valve rod, valve rod is by being arranged on the spring of valve inner, described spring one end is fixed on the valve body, one end is connected with seal disc and is scalable up and down, also be connected with damping plate above the described valve rod, described damping plate is arranged on the piston driver inside that is fixed on the valve body.
Further, preferred construction is, also is provided with snubber, and described snubber is arranged between damping plate and the valve rod end.
Further, preferred construction is that described valve body is the shape of Y type or angle type.
The utility model the beneficial effect of having taked technique scheme such as below description:
The first, owing to be provided with snubber, therefore control valve shut-in time, speed effectively;
The second, this valve can integral demounting, has improved the efficient of maintenance, maintenance.
Three, owing to the design of Y type or angle type, therefore having pressure (flow) controls accurate characteristics.
Three, in addition, also have be active in one's movements, the advantage of good seal performance.
Description of drawings
By the description of its exemplary embodiment being carried out below in conjunction with accompanying drawing, the above-mentioned feature and advantage of the present invention will become apparent and understand easily.
Fig. 1 is the structural representation of the utility model safety check.
Embodiment
Below in conjunction with accompanying drawing the utility model is described in detail.
Fig. 1 is the structural representation of the utility model safety check.
As shown in the figure, this device comprises, valve seat 101, seal disc 102, spring 103, snubber 104, valve rod 105, damping plate 106, piston driver 107, valve gap 108, valve body 109.
Wherein, valve seat 101 links together with valve body 109, and valve body 109 is that the all-pass formula is without hindrance every flow section, and, in flow section inside ribs and guide rod are not set, and, the shape of Y type made.Loss of head is little, inflow-rate of water turbine is big, the strong advantage of anti-cavitation erosion ability thereby have.
Be fixed with spring 103 at valve inner one end, spring 103 passes above the valve rod 105 that is arranged on valve body 109 1 end openings, and valve rod 105 1 ends are arranged on the outside of whole valve body 109, and be provided with damping plate 106 and snubber 104, come valve rod 105 position-limiting actions by above-mentioned parts.
Wherein, damping plate 106 constant all the time at the lifting surface area in accessory drive cross section in running, effectively improve the accuracy and the stability of regulating valve.And snubber 104 effectively shut-in time, the speed of control valve.
In addition, valve rod 105 also is connected with valve piston drive unit 107, when controller is communicated with atmosphere instantly, can constitute the two-chamber control loop with real Slow Close function, realizes best Slow Close effect.
The utility model valve adopts the design principle of optimizing, and product is widely used in municipal water supply, industrial water supply, high-rise building water supply, waterworks for firefighting and petrochemical industry oil plant transporting system and fire-fighting system.For example, the pressure balanced fire-fighting system of spray guard on a large scale of conference and exhibition center's industrial premises, tunnel, high-rise building, power station, offshore platform and aviation, petroleum chemicals feeding terminal, oil storage tank bulking system etc.
It should be noted that; above-mentioned specific embodiment is exemplary; under above-mentioned instruction of the present utility model, those skilled in the art can carry out various improvement and distortion on the basis of the foregoing description, and these improvement or distortion drop in the protection domain of the present utility model.
It will be understood by those skilled in the art that top specific descriptions just in order to explain the purpose of this utility model, are not to be used to limit the utility model.Protection domain of the present utility model is limited by claim and equivalent thereof.
Claims (3)
1. safety check, comprise valve seat, valve body and valve rod, valve rod is by being arranged on the spring of valve inner, described spring one end is fixed on the valve body, one end is connected with seal disc and is scalable up and down, it is characterized in that also be connected with damping plate above the described valve rod, described damping plate is arranged on the piston driver inside that is fixed on the valve body.
2. a kind of safety check according to claim 1 is characterized in that, also is provided with snubber, and described snubber is arranged between damping plate and the valve rod end.
3. a kind of safety check according to claim 1 and 2 is characterized in that, described valve body is the shape of Y type or angle type.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010206930853U CN201902616U (en) | 2010-12-22 | 2010-12-22 | One-way valve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010206930853U CN201902616U (en) | 2010-12-22 | 2010-12-22 | One-way valve |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201902616U true CN201902616U (en) | 2011-07-20 |
Family
ID=44273210
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2010206930853U Expired - Fee Related CN201902616U (en) | 2010-12-22 | 2010-12-22 | One-way valve |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201902616U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106103319A (en) * | 2014-03-14 | 2016-11-09 | 新东工业株式会社 | Pressurized canister, the feeder that powder is sent into conveying pipe and its feeding method |
-
2010
- 2010-12-22 CN CN2010206930853U patent/CN201902616U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106103319A (en) * | 2014-03-14 | 2016-11-09 | 新东工业株式会社 | Pressurized canister, the feeder that powder is sent into conveying pipe and its feeding method |
| CN106103319B (en) * | 2014-03-14 | 2018-07-13 | 新东工业株式会社 | Pressurized canister, the feeder and its feeding method that powder is sent into delivery pipe |
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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: 20110720 Termination date: 20111222 |