CN203880155U - Noise preventing check valve - Google Patents
Noise preventing check valve Download PDFInfo
- Publication number
- CN203880155U CN203880155U CN201420184982.XU CN201420184982U CN203880155U CN 203880155 U CN203880155 U CN 203880155U CN 201420184982 U CN201420184982 U CN 201420184982U CN 203880155 U CN203880155 U CN 203880155U
- Authority
- CN
- China
- Prior art keywords
- valve
- flap
- seat
- noise
- runner
- 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
Links
Landscapes
- Check Valves (AREA)
- Details Of Valves (AREA)
Abstract
The utility model discloses a noise preventing check valve. The technical scheme is that the noise preventing check valve comprises a valve body, a valve cover, a valve clack and a valve rod, a through runner is formed in the valve body, a water inlet and a water outlet which are communicated with the runner are formed in the valve body, the valve clack is arranged corresponding to the water inlet, a fixed seat corresponding to the valve clack is formed on the inner wall of the valve body, one end of the valve rod is connected with the valve clack, the other end of the valve rod is hinged to the fixed seat, a valve seat sealing face is formed on one side, corresponding to the valve clack, of the water inlet, and a sealing damping device matched with the valve clack is arranged on the valve seat sealing face. The noise preventing check valve utilizes the sealing damping device to generate reversed resistance to the valve clack when the valve clack approaches to the closing position, so that the closing speed of the valve clack is slowed down, the impact between the valve clack and the valve seat sealing face is reduced, leakage due to the fact that the valve seat sealing face is damaged can be avoided, and the service life of the valve is prolonged. Meanwhile, the generated noise is greatly reduced.
Description
Technical field
The utility model relates to valve technology field, is specifically related to a kind of noise-proofing 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.But, when valve closing, because medium refluence speed is fast, instantaneous pressure is very large, the sealing surface high speed impact sealing surface of seat of flap, damages sealing surface and causes internal leakage, and valve reduces working life, send loud noise simultaneously and be accompanied by generation water hammer, when serious, cause pipeline breaking.
Model utility content
The deficiency existing for prior art, the utility model provides a kind of noise-proofing safety check, this noise-proofing safety check utilization sealing damping device produces reverse resistance to it when flap approaches its closed position, slow down the closing velocity of flap, reduce the impact force between flap and sealing surface of seat, avoid sealing surface of seat to damage and cause leakage, extending the working life of valve, greatly reducing the generation of noise simultaneously.
For achieving the above object, the utility model provides following technological scheme: a kind of noise-proofing safety check, comprise valve body, valve gap, flap and valve rod, 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, on valve interior wall, flap is formed with fixed base relatively, valve rod one end is connected with flap and the other end is hinged on fixed base, corresponding flap one side of water intake is formed with sealing surface of seat, is provided with the sealing damping device that coordinates flap on sealing surface of seat.
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 fixedly connected with valve rod, valve rod and fixed base are hinged, therefore flap can rotate around fixed base along with valve rod, when flowing medium by water intake when flowing in runner, flowing medium is washed open and flows in runner by flap; When the flowing medium in pipeline flows backwards, flap, under the effect of refluence medium, impacts rapidly sealing surface of seat also and between sealing surface of seat, forms sealing; This noise-proofing safety check utilization sealing damping device produces reverse resistance to it when flap approaches its closed position, slow down the closing velocity of flap, reduce the impact force between flap and sealing surface of seat, avoid sealing surface of seat to damage and cause leakage, in the working life that extends valve, greatly reduce the generation of noise simultaneously.
The utility model is further set to, and described sealing damping device comprises rubber gasket in the form of a ring, and the external diameter of this annular rubber sealing pad and the external diameter of flap suitable, the opposite side of the corresponding flap of rubber gasket is provided with elastic component.
By adopting technique scheme, the external diameter of annular rubber sealing pad and the external diameter of flap are suitable, and the opposite side of the corresponding flap of rubber gasket is provided with elastic component, when flap quick washing sealing surface of seat, flap first impinges upon on rubber gasket, by elastic component, realize again the effect of buffering decompression, and between flap and rubber gasket, form good sealing effect, reduced on the one hand the impact force between flap and sealing surface of seat, greatly reduce noise, guarantee sealing effect when its anti-flowing medium flows backwards simultaneously, while avoiding flowing medium to flow backwards, between flap and sealing surface of seat, ooze out.
The utility model is further set to, described elastic component comprises housing and is located at the spring in housing, on housing, offer through hole, in through hole, slip is equipped with connecting rod, one end of connecting rod is connected with rubber gasket and the other end of connecting rod is connected with pressing plate, pressing plate is movable be located in housing and with spring butt.
By adopting technique scheme, connecting rod slip is arranged in through hole, and one end of connecting rod is connected with rubber gasket, and the other end is connected with pressing plate, and pressing plate movable be located in housing and with spring butt, when flap clashes into rubber gasket, rubber gasket promotes connecting rod, and connecting rod band dynamic pressure plate is to the direction motion of extrusion spring, by extrusion spring, cushion the impact force of flap, greatly reduce the generation of noise, and this elastic component is simple in structure, is applicable to industrial production in enormous quantities.
The utility model is further set to, and the another side of the corresponding water intake of described flap is fixedly connected with valve rod, and the opposite side of the corresponding flap of valve rod is provided with damper, and described valve interior wall is provided with the impact face that coordinates damper.
By adopting technique scheme, valve rod is provided with damper, valve interior wall is provided with the impact face that coordinates damper, when flowing medium is flow in runner by water intake, and flow velocity is fast, instantaneous impact is when larger, and flowing medium temporary impact flap clashes into flap on the impact face of valve interior wall, and the impact force that damper effectively produces during buffering collision of closed avoids flap at flowing medium impact force frontal impact valve interior wall and damaging when large.
The utility model is further set to, and the relative valve gap of described runner position has been recessed to form buffer cavity.
By adopting technique scheme, the relative valve gap of runner position has been recessed to form buffer cavity, when flowing medium flows backwards and when flow is larger, buffer cavity is the impact force during refluence of buffer fluid medium effectively, and the buckles of most flowing medium is stored and dissolved by buffer cavity.
The utility model is further set to, and described valve body, valve gap and valve rod are made by Hastelloy.
By adopting technique scheme, valve body, valve gap and valve rod are made by Hastelloy, make this noise-proofing safety check have higher resistance to chemical corrosion, and have reliable structural strength, have greatly strengthened its practicability, extend its working life.
Accompanying drawing explanation
Fig. 1 is the structural representation of the utility model noise-proofing safety check;
Fig. 2 is the A portion enlarged view of Fig. 1;
Fig. 3 is another structural representation of the utility model noise-proofing safety check.
Reference character: 1, valve body; 2, valve gap; 3, flap; 4, valve rod; 5, runner; 51, water intake; 52, water outlet; 6, fixed base; 7, buffer cavity; 81, rubber gasket; 82, housing; 83, connecting rod; 84, pressing plate; 85, spring; 86, directional post; 91, damper; 92, impact face.
Embodiment
Referring to figs. 1 through Fig. 3, the utility model noise-proofing safety check embodiment is described further.
A kind of noise-proofing safety check, comprise valve body 1, valve gap 2, flap 3 and valve rod 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 3 arranges, and on valve body 1 inwall, flap 3 is formed with fixed base 6 relatively, and valve rod 4 one end are connected with flap 3 and the other end is hinged on fixed base 6, corresponding flap 3 one sides of water intake 51 are formed with sealing surface of seat, are provided with the sealing damping device that coordinates flap 3 on sealing surface of seat.
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 3 one sides of water intake 51 are formed with sealing surface of seat, flap 3 can and sealing surface of seat between form sealing, because flap 3 is fixedly connected with valve rod 4, valve rod 4 is hinged with fixed base 6, therefore flap 3 can rotate around fixed base 6 along with valve rod 4, when flowing medium interior when mobile to runner 5 by water intake 51, flowing medium is washed flap 3 flow to open in runner 5, as shown in Figure 3; When the flowing medium in pipeline flows backwards, flap 3, under the effect of refluence medium, impacts rapidly sealing surface of seat also and between sealing surface of seat, forms sealing, as shown in Figure 1; This noise-proofing safety check utilization sealing damping device produces reverse resistance to it when flap 3 approaches its closed position, slow down the closing velocity of flap 3, reduce the impact force between flap 3 and sealing surface of seat, avoid sealing surface of seat to damage and cause leakage, in the working life that extends valve, greatly reduce the generation of noise simultaneously.
Described sealing damping device comprises rubber gasket 81 in the form of a ring, and the external diameter of the external diameter of this annular rubber sealing pad 81 and flap 3 is suitable, and the opposite side of the corresponding flap 3 of rubber gasket 81 is provided with elastic component.
By adopting technique scheme, the external diameter of the external diameter of annular rubber sealing pad 81 and flap 3 is suitable, and the opposite side of the corresponding flap 3 of rubber gasket 81 is provided with elastic component, when flap 3 quick washing sealing surface of seat, flap 3 first impinges upon on rubber gasket 81, by elastic component, realize again the effect of buffering decompression, and form good sealing effect between flap 3 and rubber gasket 81, reduced on the one hand the impact force between flap 3 and sealing surface of seat, greatly reduce noise, guarantee sealing effect when its anti-flowing medium flows backwards simultaneously, while avoiding flowing medium to flow backwards, between flap 3 and sealing surface of seat, ooze out.
Described elastic component comprises housing 82 and is located at the spring 85 in housing 82, on housing 82, offer through hole, in through hole, slip is equipped with connecting rod 83, one end of connecting rod 83 is connected with rubber gasket 81 and the other end of connecting rod 83 is connected with pressing plate 84, pressing plate 84 is movable be located in housing 82 and with spring 85 butts.
By adopting technique scheme, connecting rod 83 slips are arranged in through hole, and one end of connecting rod 83 is connected with rubber gasket 81, the other end is connected with pressing plate 84, and pressing plate 84 movable be located in housing 82 and with spring 85 butts, when flap 3 clashes into rubber gasket 81, rubber gasket 81 promotes connecting rod 83, connecting rod 83 is the direction motion to extrusion spring 85 with dynamic pressure plate 84, by extrusion spring 85, cushion the impact force of flap 3, greatly reduce the generation of noise, and this elastic component is simple in structure, be applicable to industrial production in enormous quantities, as preferably, in housing 82, be also provided with and can supply the sheathed directional post 86 of spring 85, make when pressing plate 84 extrusion spring 85, 86 pairs of springs 85 of directional post play the effect of support, avoid spring 85 bendings and affect its using effect.
The another side of the corresponding water intake 51 of described flap 3 is fixedly connected with valve rod 4, and the opposite side of the corresponding flap 3 of valve rod 4 is provided with damper 91, and described valve body 1 inwall is provided with the impact face 92 that coordinates damper 91.
By adopting technique scheme, valve rod 4 is provided with damper 91, valve body 1 inwall is provided with the impact face 92 that coordinates damper 91, (as preferably, the structure of this damper 91 is similar with sealing damping device, comprise rubber gasket 81 and elastic component) by water intake 51, flow in runner 5 when flowing medium, and flow velocity is fast, when instantaneous impact is larger, flowing medium temporary impact flap 3, flap 3 is clashed on the impact face 92 of valve body 1 inwall, and the impact force that damper 91 effectively produces during buffering collision of closed, avoid flap 3 at flowing medium impact force frontal impact valve body 1 inwall and damaging when large.
Described runner 5 relative valve gap 2 positions have been recessed to form buffer cavity 7.
By adopting technique scheme, as preferably, runner 5 relative valve gap 2 positions have been recessed to form buffer cavity 7, when flowing medium flows backwards and when flow is larger, the impact force of buffer cavity 7 when effectively buffer fluid medium flows backwards, dissolves the buckles of most flowing medium by buffer cavity 7 storages.
Described valve body 1, valve gap 2 and valve rod 4 are made by Hastelloy.
By adopting technique scheme, as best preferred version of the present utility model, valve body 1, valve gap 2 and valve rod 4 are made by Hastelloy, make this noise-proofing safety check there is higher resistance to chemical corrosion, and there is reliable structural strength, greatly strengthen its practicability, extended its working life.
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 (3)
1. a noise-proofing safety check, comprise valve body, valve gap, flap and valve rod, 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, on described valve interior wall, flap is formed with fixed base relatively, and valve rod one end is connected with flap and the other end is hinged on fixed base, it is characterized in that: corresponding flap one side of described water intake is formed with sealing surface of seat, is provided with the sealing damping device that coordinates flap on sealing surface of seat; Described sealing damping device comprises rubber gasket in the form of a ring, and the external diameter of the rubber gasket of this ring-type and the external diameter of flap are suitable, the opposite side of the corresponding flap of rubber gasket is provided with elastic component, described elastic component comprises housing and is located at the spring in housing, on housing, offer through hole, slip is equipped with connecting rod in through hole, and one end of connecting rod is connected with rubber gasket and the other end of connecting rod is connected with pressing plate, pressing plate is movable be located at housing interior and with spring butt; The another side of the corresponding water intake of described flap is fixedly connected with valve rod, and the opposite side of the corresponding flap of valve rod is provided with damper, and described valve interior wall is provided with the impact face that coordinates damper.
2. noise-proofing safety check according to claim 1, is characterized in that: the relative valve gap of described runner position has been recessed to form buffer cavity.
3. noise-proofing safety check according to claim 2, is characterized in that: described valve body, valve gap and valve rod are made by Hastelloy.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420184982.XU CN203880155U (en) | 2014-04-16 | 2014-04-16 | Noise preventing check valve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420184982.XU CN203880155U (en) | 2014-04-16 | 2014-04-16 | Noise preventing check valve |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203880155U true CN203880155U (en) | 2014-10-15 |
Family
ID=51680653
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420184982.XU Expired - Fee Related CN203880155U (en) | 2014-04-16 | 2014-04-16 | Noise preventing check valve |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203880155U (en) |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107654689A (en) * | 2017-09-21 | 2018-02-02 | 永嘉县荣信科技有限公司 | A kind of ball valve |
| CN108506535A (en) * | 2018-07-04 | 2018-09-07 | 德阳市迪信佳阀门制造有限公司 | A kind of check valve |
| CN109707875A (en) * | 2017-10-26 | 2019-05-03 | 厦门三登塑胶工业有限公司 | Turnover plate type non-return valve |
| CN110966672A (en) * | 2018-09-29 | 2020-04-07 | 宁波方太厨具有限公司 | Kitchen air conditioning system |
| CN110966673A (en) * | 2018-09-29 | 2020-04-07 | 宁波方太厨具有限公司 | Kitchen air conditioning system |
| US10612690B2 (en) | 2016-03-15 | 2020-04-07 | Hamilton Sundstrand Corporation | Check valves |
-
2014
- 2014-04-16 CN CN201420184982.XU patent/CN203880155U/en not_active Expired - Fee Related
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US10612690B2 (en) | 2016-03-15 | 2020-04-07 | Hamilton Sundstrand Corporation | Check valves |
| CN107654689A (en) * | 2017-09-21 | 2018-02-02 | 永嘉县荣信科技有限公司 | A kind of ball valve |
| CN109707875A (en) * | 2017-10-26 | 2019-05-03 | 厦门三登塑胶工业有限公司 | Turnover plate type non-return valve |
| CN109707875B (en) * | 2017-10-26 | 2024-02-06 | 厦门三登塑胶工业有限公司 | Turning plate type check valve |
| CN108506535A (en) * | 2018-07-04 | 2018-09-07 | 德阳市迪信佳阀门制造有限公司 | A kind of check valve |
| CN110966672A (en) * | 2018-09-29 | 2020-04-07 | 宁波方太厨具有限公司 | Kitchen air conditioning system |
| CN110966673A (en) * | 2018-09-29 | 2020-04-07 | 宁波方太厨具有限公司 | Kitchen air conditioning system |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN203880155U (en) | Noise preventing check valve | |
| CN104847930B (en) | Water hammer-resistant slow closing swing check valve | |
| CN202252161U (en) | Novel check valve | |
| CN204201188U (en) | A kind of safety check with damping device | |
| CN202659991U (en) | Slow-closing check valve | |
| CN101251203A (en) | Check valve | |
| CN202659981U (en) | Silent check valve | |
| CN104565425A (en) | C-shaped four-eccentric slurry pump control valve | |
| CN204756036U (en) | A check valve | |
| CN203477476U (en) | Rotating-off type check valve | |
| CN204477396U (en) | A kind of one-way non-return control valve unit | |
| CN103343826B (en) | Non-return valve | |
| CN204729691U (en) | A kind of sound insulation safety check | |
| CN203770748U (en) | Damping check valve | |
| CN104565455B (en) | Slowly-closing check valve | |
| CN203477346U (en) | Glue hanging sealing double-spring butterfly type stop valve | |
| CN203374901U (en) | Novel check valve | |
| CN104180029A (en) | Screwing opening type check valve capable of balancing pressure automatically | |
| CN106015660A (en) | Quick closing check valve | |
| CN205331514U (en) | Cast steel swing check valve's valve body | |
| CN203272894U (en) | Swing check valve | |
| CN205896290U (en) | Fast closed check valve | |
| CN203477343U (en) | High-strength double-spring butterfly type stop valve | |
| CN204459248U (en) | The eccentric slurry pump control valve of C shape four | |
| CN203979534U (en) | A kind of cut-off modulating valve with check function |
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: 20141015 Termination date: 20160416 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |