CN203770748U - Damping check valve - Google Patents
Damping check valve Download PDFInfo
- Publication number
- CN203770748U CN203770748U CN201420184631.9U CN201420184631U CN203770748U CN 203770748 U CN203770748 U CN 203770748U CN 201420184631 U CN201420184631 U CN 201420184631U CN 203770748 U CN203770748 U CN 203770748U
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- CN
- China
- Prior art keywords
- flap
- fixed base
- valve
- valve body
- push rod
- 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 damping check valve. The damping check valve is characterized by comprising a valve body, a valve deck, a valve clack and a rotary shaft, a through flow channel is formed in the valve body, a water inlet and a water outlet are formed in the valve body and communicated with the flow channel, the valve clack corresponds to the water inlet, a valve seat sealing surface is formed on the side, corresponding to the valve clack, of the water inlet, a fixed base is formed in the portion, opposite to the valve clack, of the inner wall of the valve body, an ejector rod is arranged on the fixed base and is opposite to the valve clack, one end of the ejector rod is hinged to the fixed base, an impact surface is arranged at the other end, corresponding to the fixed base, of the ejector rod, the valve clack is arranged on the fixed base in a rotary mode through the rotary shaft and can abut against the impact surface, and an elastic restoration piece is arranged between the ejector rod and the fixed base. By the adoption of the damping check valve, when the flow and the flow velocity of media are high, damage, caused by direct violent impact between the valve clack and the valve body, to the valve clack and the valve body can be avoided, noise is lowered, and vibration is reduced.
Description
Technical field
The utility model relates to valve technology field, is specifically related to a kind of damping safety check.
Background technique
Safety check claims again check valve, one-way valve, and for pipe-line system, the medium mobile power producing in tube road opens and closes automatically, and belongs to a kind of automatic valve, for preventing that medium from flowing backwards at pipeline.Difference by structural design, can be divided into Lift check valve, Swing check valve and butterfly check valve, and the flap of Swing check valve rotates around the shaft, and its fluid resistance is generally less than Lift check valve, and it is applicable to the occasion of larger caliber; Swing check valve can be divided into three kinds of single-lobe rotary-open type, bivalve rotary-open type and many lobes rotary-open types according to the number of flap, and single-lobe Swing check valve is generally applicable to the occasion of medium caliber or heavy caliber pipeline.
Swing check valve of the prior art, in valve seat, be provided with discoid flap, the rotating shaft that this flap can arrange in valve seat rotates, when in pipeline, flowing medium flows backwards, flap is under the effect of refluence medium, its sealing surface and sealing surface of seat closely cooperate, thereby make valve rapid-closing, play the effect that stops medium to flow backwards.Yet, when flowing to the rate-of flow of valve when larger, because velocity of medium is fast, instantaneous pressure is very large, quick washing flap, because flap does not arrange damping device, therefore the flap valve body that clashes under the quick washing of medium, not only damage flap and valve body, affect the working life of valve, the noise that simultaneous is huge and vibrations, if things go on like this will cause the badly damaged of valve, therefore still have improved space.
Model utility content
The deficiency existing for prior art, the utility model provides a kind of damping safety check, when rate-of flow and flow velocity are when larger, this damping safety check can be avoided flap directly and valve body clashes and damages flap and valve body, reduces the generation of noise and vibrations simultaneously.
For achieving the above object, the utility model provides following technological scheme: a kind of damping safety check, comprise valve body, valve gap, flap and rotating shaft, in valve body, be formed with the runner of perforation, on valve body, offer the water intake and the water outlet that are communicated with runner, the corresponding water intake setting of flap, corresponding flap one side of water intake is formed with sealing surface of seat, on valve interior wall, flap is formed with fixed base relatively, on fixed base, flap is provided with push rod relatively, one end of push rod is hinged on fixed base, the other end of the corresponding fixed base of push rod is impact face, flap by rotating shaft, be rotatably arranged on fixed base and can with impact face butt, between push rod and fixed base, be provided with elastic recovery part.
By adopting technique scheme, in valve body, be formed with runner, flowing medium is entered in runner and by water outlet and is flowed out by water intake, corresponding flap one side of water intake is formed with sealing surface of seat, flap can and sealing surface of seat between form sealing, because flap is hinged on fixed base by rotating shaft, when medium fluid is impacted flap, flap rotates and impinges upon on push rod, rigid impulse power between flap and push rod is larger, due to push rod be hinged on fixed base and push rod and fixed base between be provided with elastic recovery part, therefore when flap clashes into the impact face of push rod, effect by push rod and elastic recovery part cushions the impact force of flap dissolve, when medium fluid refluxes, flap and sealing surface of seat are closed, therefore,, when rate-of flow and flow velocity are when larger, this damping safety check can be avoided flap directly and valve body clashes and damages flap and valve body, reduces the generation of noise and vibrations simultaneously.
The utility model is further set to, and described elastic recovery part is jump ring.
By adopting technique scheme, elastic recovery part is jump ring, and the impact force that cushions flap for push rod provides reliable elastic-restoring force, and simple in structure, and cost of production is low.
The utility model is further set to, and described elastic recovery part is torsion spring.
By adopting technique scheme, elastic recovery part is torsion spring, and the impact force that cushions flap for push rod provides reliable elastic-restoring force, and simple in structure, and cost of production is low.
The utility model is further set to, on described sealing surface of seat, be arranged with sealing jacking block, flap is provided with the sealing gasket of fitted seal jacking block, and the surface area of relative sealing gasket one side of sealing jacking block is less than the surface area of sealing gasket, and sealing jacking block can butt embedding sealing pad.
By adopting technique scheme, on sealing surface of seat, be arranged with sealing jacking block, flap is provided with sealing gasket, and the surface area of sealing jacking block is less than the surface area of sealing surface, when flap is under the effect of refluence medium during to sealing surface of seat one side impaction, sealing jacking block and sealing gasket can play the effect of shock absorbing power, simultaneously when flap and sealing surface of seat closure, sealing jacking block can embedding sealing pad in, form good sealing effect, the medium generation seepage of avoiding flowing backwards.
The utility model is further set to, and described valve body, valve gap, flap, fixed base and push rod are made by monel metal.
By adopting technique scheme, valve body, valve gap, flap, fixed base and push rod are made by monel metal, monel metal has high strength, the excellent mechanical property such as corrosion-resistant, nonmagnetic, and heat-resisting, anti-oxidant, easily processing, guarantees the stable and reliable working performance of this damping safety check.
The utility model is further set to, and the outer surface of corresponding push rod one side of described flap is provided with chrome plating.
By employing technique scheme, the outer surface of corresponding push rod one side of flap is provided with chrome plating, has greatly strengthened the structural strength of flap, avoids flap for a long time and push rod shock and generation breakage.
The utility model is further set to, and between described valve gap and valve body, is provided with seal ring.
By adopting technique scheme, between valve gap and valve body, be provided with seal ring, when being damaged in valve body or needing repairing, can open valve gap and keep in repair or safeguard, and the setting of seal ring can be guaranteed the sealability between valve gap and valve body, avoid leaking.
Accompanying drawing explanation
Fig. 1 is the structural representation of the utility model damping safety check closed state;
Fig. 2 is the structural representation of the utility model damping safety check opening state;
Fig. 3 is the A portion enlarged view of Fig. 2;
Fig. 4 is the B portion enlarged view of Fig. 2.
Reference character: 1, valve body; 2, valve gap; 31, flap; 32, sealing surface of seat; 4, rotating shaft; 5, runner; 51, water intake; 52, water outlet; 6, fixed base; 7, push rod; 71, impact face; 81, sealing jacking block; 82, sealing gasket.
Embodiment
Referring to figs. 1 through Fig. 4, the utility model damping safety check embodiment is described further.
A kind of damping safety check, comprise valve body 1, valve gap 2, flap 31 and rotating shaft 4, in valve body 1, be formed with the runner 5 of perforation, on valve body 1, offer the water intake 51 and the water outlet 52 that are communicated with runner 5, the corresponding water intake 51 of flap 31 arranges, corresponding flap 31 1 sides of water intake 51 are formed with sealing surface of seat 32, on valve body 1 inwall, flap 31 is formed with fixed base 6 relatively, on fixed base 6, flap 31 is provided with push rod 7 relatively, one end of push rod 7 is hinged on fixed base 6, the other end of the corresponding fixed base 6 of push rod 7 is impact face 71, flap 31 by rotating shaft 4, be rotatably arranged on fixed base 6 and can with impact face 71 butts, between push rod 7 and fixed base 6, be provided with elastic recovery part.
By adopting technique scheme, in valve body 1, be formed with runner 5, flowing medium is entered in runner 5 and is flowed out by water outlet 52 by water intake 51, corresponding flap 31 1 sides of water intake 51 are formed with sealing surface of seat 32, flap 31 can and sealing surface of seat 32 between form sealing, because flap 31 is hinged on fixed base 6 by rotating shaft 4, when medium fluid is impacted flap 31, flap 31 rotates and impinges upon on push rod 7, rigid impulse power between flap 31 and push rod 7 is larger, due to push rod 7 be hinged on fixed base 6 and push rod 7 and fixed base 6 between be provided with elastic recovery part, therefore when flap 31 clashes into the impact face 71 of push rod 7, effect by push rod 7 and elastic recovery part cushions the impact force of flap 31 dissolve, when medium fluid refluxes, flap 31 and sealing surface of seat 32 closures, therefore,, when rate-of flow and flow velocity are when larger, this damping safety check can be avoided flap 31 directly and valve body 1 clashes and damages flap 31 and valve body 1, reduces the generation of noise and vibrations simultaneously.
As a kind of mode of execution of the present utility model, described elastic recovery part is jump ring.
By adopting technique scheme, elastic recovery part is jump ring, and the impact force that cushions flaps 31 for push rod 7 provides reliable elastic-restoring force, and simple in structure, and cost of production is low.
As another kind of mode of execution of the present utility model, described elastic recovery part is torsion spring.
By adopting technique scheme, elastic recovery part is torsion spring, and the impact force that cushions flaps 31 for push rod 7 provides reliable elastic-restoring force, and simple in structure, and cost of production is low.
As preferably, on described sealing surface of seat 32, be arranged with sealing jacking block 81, flap 31 is provided with the sealing gasket 82 of fitted seal jacking block 81, and the surface area of sealing jacking block 81 relative sealing gasket 82 1 sides is less than the surface area of sealing gasket 82, and sealing jacking block 81 can butt embedding sealing pad 82.
By adopting technique scheme, on sealing surface of seat 32, be arranged with sealing jacking block 81, flap 31 is provided with sealing gasket 82, and the surface area of sealing jacking block 81 is less than the surface area of sealing surface, when flap 31 is under the effect of refluence medium during to sealing surface of seat 32 1 side impaction, sealing jacking block 81 and sealing gasket 82 can play the effect of shock absorbing power, simultaneously when flap 31 and sealing surface of seat 32 are closed, sealing jacking block 81 can embedding sealing pad 82 in, form good sealing effect, the medium generation seepage of avoiding flowing backwards.
Described valve body 1, valve gap 2, flap 31, fixed base 6 and push rod 7 are made by monel metal.
By adopting technique scheme, valve body 1, valve gap 2, flap 31, fixed base 6 and push rod 7 are made by monel metal, monel metal has high strength, the excellent mechanical property such as corrosion-resistant, nonmagnetic, and heat-resisting, anti-oxidant, easily processing, guarantees the stable and reliable working performance of this damping safety check.
The outer surface of corresponding push rod 7 one sides of described flap 31 is provided with chrome plating.
By adopting technique scheme, the outer surface of corresponding push rod 7 one sides of flap 31 is provided with chrome plating, has greatly strengthened the structural strength of flap 31, avoids flap 31 for a long time and push rod 7 shocks and generation breakage.
Between described valve gap 2 and valve body 1, be provided with seal ring.
By adopting technique scheme, between valve gap 2 and valve body 1, be provided with seal ring, when being damaged or needing repairing in valve body 1, can open valve gap 2 and keep in repair or safeguard, and the setting of seal ring can be guaranteed the sealability between valve gap 2 and valve body 1, avoid leaking.
The above is only preferred implementation of the present utility model, and protection domain of the present utility model is also not only confined to above-described embodiment, and all technological schemes belonging under the utility model thinking all belong to protection domain of the present utility model.It should be pointed out that for those skilled in the art, in the some improvements and modifications that do not depart under the utility model principle prerequisite, these improvements and modifications also should be considered as protection domain of the present utility model.
Claims (7)
1. a damping safety check, comprise valve body, valve gap, flap and rotating shaft, in valve body, be formed with the runner of perforation, on valve body, offer the water intake and the water outlet that are communicated with runner, the corresponding water intake setting of flap, corresponding flap one side of water intake is formed with sealing surface of seat, on described valve interior wall, flap is formed with fixed base relatively, it is characterized in that: on described fixed base, flap is provided with push rod relatively, one end of push rod is hinged on fixed base, the other end of the corresponding fixed base of push rod is impact face, described flap by rotating shaft, be rotatably arranged on fixed base and can with impact face butt, between described push rod and fixed base, be provided with elastic recovery part.
2. damping safety check according to claim 1, is characterized in that: described elastic recovery part is jump ring.
3. damping safety check according to claim 1, is characterized in that: described elastic recovery part is torsion spring.
4. according to the damping safety check described in claim 1 or 2 or 3, it is characterized in that: on described sealing surface of seat, be arranged with sealing jacking block, flap is provided with the sealing gasket of fitted seal jacking block, the surface area of relative sealing gasket one side of sealing jacking block is less than the surface area of sealing gasket, and sealing jacking block can butt embedding sealing pad.
5. damping safety check according to claim 4, is characterized in that: described valve body, valve gap, flap, fixed base and push rod are made by monel metal.
6. damping safety check according to claim 5, is characterized in that: the outer surface of corresponding push rod one side of described flap is provided with chrome plating.
7. damping safety check according to claim 6, is characterized in that: between described valve gap and valve body, be provided with seal ring.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420184631.9U CN203770748U (en) | 2014-04-16 | 2014-04-16 | Damping check valve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420184631.9U CN203770748U (en) | 2014-04-16 | 2014-04-16 | Damping check valve |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203770748U true CN203770748U (en) | 2014-08-13 |
Family
ID=51287939
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420184631.9U Expired - Fee Related CN203770748U (en) | 2014-04-16 | 2014-04-16 | Damping check valve |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203770748U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104455573A (en) * | 2014-12-09 | 2015-03-25 | 兰州高压阀门有限公司 | CW6MC alloy high-temperature high-pressure oxygen stop valve and casting process thereof |
| CN109968999A (en) * | 2017-12-27 | 2019-07-05 | 丰田自动车株式会社 | On-vehicle battery device |
-
2014
- 2014-04-16 CN CN201420184631.9U patent/CN203770748U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104455573A (en) * | 2014-12-09 | 2015-03-25 | 兰州高压阀门有限公司 | CW6MC alloy high-temperature high-pressure oxygen stop valve and casting process thereof |
| CN109968999A (en) * | 2017-12-27 | 2019-07-05 | 丰田自动车株式会社 | On-vehicle battery device |
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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: 20140813 Termination date: 20160416 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |