CN203948652U - A kind of one-piece piston with cavitation erosion cover and with the water valve of this piston - Google Patents
A kind of one-piece piston with cavitation erosion cover and with the water valve of this piston Download PDFInfo
- Publication number
- CN203948652U CN203948652U CN201420360352.3U CN201420360352U CN203948652U CN 203948652 U CN203948652 U CN 203948652U CN 201420360352 U CN201420360352 U CN 201420360352U CN 203948652 U CN203948652 U CN 203948652U
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- Prior art keywords
- piston
- cavitation
- valve
- cock body
- water passage
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- Expired - Fee Related
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- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 title claims abstract description 65
- 230000003628 erosive effect Effects 0.000 title description 4
- 238000007789 sealing Methods 0.000 claims abstract description 16
- 230000000694 effects Effects 0.000 claims description 6
- 230000033001 locomotion Effects 0.000 claims description 6
- 238000012856 packing Methods 0.000 claims description 5
- 238000010276 construction Methods 0.000 abstract description 3
- 239000000463 material Substances 0.000 abstract description 3
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000013016 damping Methods 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 230000008676 import Effects 0.000 description 1
- 238000010030 laminating Methods 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 230000035939 shock Effects 0.000 description 1
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- Lift Valve (AREA)
- Details Of Valves (AREA)
Abstract
With the one-piece piston of cavitation-preventive cover and with the water valve of this piston, it comprises piston cylinder, cock body, cavitation-preventive cover and elastic component; Piston cylinder is fixedly installed on valve body, and cock body moves back and forth in piston cylinder; Cavitation-preventive cover comprises roof and the sidewall being fixedly connected with cock body, and the outer surface of sidewall and the inwall of water passage hole are fitted, and on sidewall, is provided with the slotted hole of a plurality of inclinations; Elastic component is connected between piston cylinder and cock body.The utility model piston cylinder and valve gap are monolithic construction, and compact structure, has reduced the use of number of spare parts and material, also reduced sealing pair, has increased the reliability of sealing.Meanwhile, effectively reduce, even prevent the generation of cavitation phenomenon, under small flow working state, also only can produce cavitation phenomenon in a small amount in cavitation-preventive cover inside, thus the operating life that has extended piston type water valve, and effectively reduced noise and vibrations.
Description
Technical field
The utility model relates to a kind of one-piece piston with cavitation erosion cover, particularly a kind of water valve with this piston.
Background technique
At present, in water valve, piston is arranged on valve body conventionally, and it comprises piston cylinder, reciprocating cock body and be covered on the valve gap outside piston cylinder in piston cylinder.Wherein, between piston cylinder and valve gap, cock body and piston cylinder, be provided with seal ring, to reach good sealing effect.This structure, when mounted, causes dismounting operation more complicated conventionally.In addition; on valve body, arrange for piston activity cross-under at inner valve opening; the edge that valve body is positioned at valve opening forms flap; it,, in when work, can produce cavitation phenomenon conventionally, during state at water valve in small flow work; cavitation phenomenon is particularly serious; the bubble producing in cavitation phenomenon breaks and can discharge larger energy, thereby makes valve produce larger noise, vibrations, more seriously can damage the inner body of water valve.
Model utility content
For the deficiencies in the prior art, the purpose of this utility model is intended to provide a kind of one-piece piston with cavitation erosion cover, and it is simple in structure, easy accessibility and can effectively prevent the impact of cavitation phenomenon on water valve, reduces noise and vibrations.
For achieving the above object one, the utility model adopts following technological scheme:
With an one-piece piston for cavitation-preventive cover, it is arranged on water valve; Water valve comprises valve body and is fixedly mounted on the valve seat on valve body, is provided with water passage hole on valve seat, and piston can axially moving between the open position away from water passage hole in the closed position and that is plugged in water passage hole upper end portion opening along water passage hole; Piston comprises piston cylinder, cock body, is fixedly connected on cavitation-preventive cover and the elastic component of cock body one end; Piston cylinder is fixedly installed on valve body, and cock body moves back and forth in piston cylinder; The cross-under of cavitation-preventive cover activity is in water passage hole and can the axial motion along water passage hole in the drive of cock body, cavitation-preventive cover comprises the roof that is fixedly connected with cock body and the sidewall to downward-extension by the edge of roof, the outer surface of sidewall and the inwall of water passage hole are fitted, and on sidewall, are provided with the slotted hole of a plurality of inclinations; Elastic component is connected between piston cylinder and cock body, for providing cock body to the restoring force moving away from piston cylinder direction.
The plurality of slotted hole is around the central axis circumference array of cavitation-preventive cover.
The angle of the length direction of slotted hole and the bearing of trend of sidewall is 10-20 degree.
Between cock body and piston cylinder, between cock body and valve seat, be respectively arranged with property piston packing and valve clack sealing ring for increasing sealing.
For achieving the above object two, the utility model adopts following technological scheme:
A kind of water valve comprises valve body, is fixedly mounted on the valve seat on valve body and is arranged at the piston on valve body; On valve seat, be provided with water passage hole, piston can axially moving between the open position away from water passage hole in the closed position and that is plugged in water passage hole upper end portion opening along water passage hole; Piston comprises piston cylinder, cock body, is fixedly connected on cavitation-preventive cover and the elastic component of cock body one end; Piston cylinder is fixedly installed on valve body, and cock body moves back and forth in piston cylinder; The cross-under of cavitation-preventive cover activity is in water passage hole and can the axial motion along water passage hole in the drive of cock body, cavitation-preventive cover comprises the roof that is fixedly connected with cock body and the sidewall to downward-extension by the edge of roof, the outer surface of sidewall and the inwall of water passage hole are fitted, and on sidewall, are provided with the slotted hole of a plurality of inclinations; Elastic component is connected between piston cylinder and cock body, for providing cock body to the restoring force moving away from piston cylinder direction.
The plurality of slotted hole is around the central axis circumference array of cavitation-preventive cover.
The angle of the length direction of slotted hole and the bearing of trend of sidewall is 10-20 degree.
Between cock body and piston cylinder, between cock body and valve seat, be respectively arranged with property piston packing and valve clack sealing ring for increasing sealing.
The beneficial effects of the utility model are:
Than prior art, the utility model piston cylinder and valve gap are monolithic construction, and compact structure, has reduced the use of number of spare parts and material, also reduced sealing pair, has increased the reliability of sealing.Simultaneously, due to cavitation-preventive cover being installed on piston, can effectively reduce, even prevent the generation of cavitation phenomenon, under small flow working state, also only can be in the inner cavitation phenomenon in a small amount that produces of cavitation-preventive cover, thereby extended the operating life of water valve, and effectively reduced noise and vibrations.
Accompanying drawing explanation
Fig. 1 is the structural representation of the utility model piston;
Fig. 2 is the structural representation of cavitation-preventive cover in Fig. 1 piston;
Wherein: 10, valve body; 20, valve seat; 21, water passage hole; 30, piston; 31, piston cylinder; 32, cock body; 33, piston packing; 34, valve clack sealing ring; 35, cavitation-preventive cover; 350, roof; 352, sidewall; 354, slotted hole; 36, elastic component.
Embodiment
Below, by reference to the accompanying drawings and embodiment, the utility model is described further:
As shown in Figure 1, water valve of the present utility model comprises valve body 10, valve seat 20 and piston 30.Valve seat 20 is fixedly installed on valve body 10, is provided with the water passage hole 21 that water supply stream passes through on it.Piston 30 is movably installed on valve body 10, its can be under external force along the axial motion of water passage hole 21, and can move being plugged between the closed position of water passage hole 21 upper end portion openings and the open position away from water passage hole 21.That is, piston 30 moves downward to being above-mentioned closed position with the position of valve seat 20 upper-end surface laminatings, and piston 30 moves up to the position separated with valve seat 20 upper-end surfaces and is above-mentioned open position.Piston 30 comprises piston cylinder 31, the cock body 32 moving back and forth in the interior work of piston cylinder 31, cavitation-preventive cover 35 and elastic component 36.Piston cylinder 31 is fixedly installed on valve body 10 by screw.In the present embodiment, piston cylinder 31 is overall structure with valve gap.So, can save the valve gap being covered on piston cylinder 31, the compact structure of whole piston 30, has reduced number of spare parts.In the present embodiment, between cock body 32 and piston cylinder 31 and cock body 32 away from the property piston packing 33 and valve clack sealing ring 34 that are respectively arranged with between the lower end surface of piston cylinder 31 and valve seat 20 for increasing sealing.
Cavitation-preventive cover 35 cross-under actively, in water passage hole 21, and is fixedly connected on cock body 32 away from the lower end surface of piston cylinder 31, its can be under the drive of piston 30 along the axial motion of water passage hole 21.Cavitation-preventive cover 35 comprise the roof 350 that is fixedly connected with by screw with the lower end surface of cock body 32 and by the edge of roof 350 to downward-extension and sidewall in the form of a ring 352.The inwall of the outer surface of sidewall 352 and water passage hole 21 is fitted, and is provided with the slotted hole 354 of a plurality of inclinations on it.A plurality of slotted holes 354 are around central axis (being the central axis of the water passage hole 21) circumference array of cavitation-preventive cover 35.Wherein, the angle of the bearing of trend of the length direction of slotted hole 354 and sidewall 352 is 10-20 degree, and especially 15 when spend, and its noise reduction and damping effect are best.Elastic component 36 is connected between piston cylinder 31 and cock body 32, for providing cock body 32 to the restoring force moving away from piston cylinder 31 directions.
In use, cock body 32 can move back and forth in piston cylinder 31 is interior under external force, thereby drives cavitation-preventive cover 35 with respect to valve seat 20 water passage hole 21 motions, the area that supplies water and flow through to change slotted hole 354.
When the import of current via valve enters, and enter the also central shaft of directive cavitation-preventive cover 35 from the slotted hole 354 of cavitation-preventive cover 35 peripheries, the jet of water and bubble is only at the inner shock mutually of cavitation-preventive cover 35, form turbulent flow, increased the flow resistance of water, the pressure that has reduced water recovers, and has slowed down the gradient that water pressure changes, impel water flow velocity more steady, thereby effectively reduce, even prevent the generation of cavitation phenomenon.When the inlet pressure of water valve constant; when the area that slotted hole 354 water supply are flow through diminishes; water valve is when small flow working state; even generation cavitation phenomenon, it is only also to occur in cavitation-preventive cover 35 inside, thereby has protected valve seat 20; extended the operating life of water valve; and the slotted hole 354 that current are gone up from different directions enters and clashes into, that is to say that the slotted hole 354 of inclination makes current at the inner turbulent flow that forms of cavitation-preventive cover 35, effectively reduced noise and vibrations.
The utility model, piston cylinder 31 is monolithic construction with valve gap, compact structure, has reduced the use of number of spare parts and material, has also reduced sealing pair, has increased the reliability of sealing.Due to cavitation-preventive cover 35 being installed on piston 30, can effectively reduce, even prevent the generation of cavitation phenomenon, under small flow working state, also only can be in the inner cavitation phenomenon in a small amount that produces of cavitation-preventive cover 35, thereby extended the operating life of piston type water valve, and effectively reduced noise and vibrations.
To one skilled in the art, can make other various corresponding changes and deformation according to technological scheme described above and design, and within these all changes and deformation all should belong to the protection domain of the utility model claim.
Claims (5)
1. with an one-piece piston for cavitation-preventive cover, it is arranged on water valve; Water valve comprises valve body and is fixedly mounted on the valve seat on valve body, on valve seat, be provided with water passage hole, piston can, along axially the moving between the open position away from water passage hole in the closed position and that is plugged in water passage hole upper end portion opening of water passage hole, is characterized in that: comprise piston cylinder, cock body, be fixedly connected on cavitation-preventive cover and the elastic component of cock body one end; Piston cylinder is fixedly installed on valve body, and cock body moves back and forth in piston cylinder; The cross-under of cavitation-preventive cover activity is in water passage hole and can the axial motion along water passage hole in the drive of cock body, cavitation-preventive cover comprises the roof that is fixedly connected with cock body and the sidewall to downward-extension by the edge of roof, the outer surface of sidewall and the inwall of water passage hole are fitted, and on sidewall, are provided with the slotted hole of a plurality of inclinations; Elastic component is connected between piston cylinder and cock body, for providing cock body to the restoring force moving away from piston cylinder direction.
2. the one-piece piston with cavitation-preventive cover as claimed in claim 1, is characterized in that: the plurality of slotted hole is around the central axis circumference array of cavitation-preventive cover.
3. the one-piece piston with cavitation-preventive cover as claimed in claim 2, is characterized in that: the angle of the length direction of slotted hole and the bearing of trend of sidewall is 10-20 degree.
4. the one-piece piston with cavitation-preventive cover as claimed in claim 1, is characterized in that: between cock body and piston cylinder, be respectively arranged with piston packing and the valve clack sealing ring for increasing sealing between cock body and valve seat.
5. a water valve, is characterized in that: comprise valve body, be fixedly mounted on the valve seat on valve body and be arranged at the piston on valve body; On valve seat, be provided with water passage hole, piston can axially moving between the open position away from water passage hole in the closed position and that is plugged in water passage hole upper end portion opening along water passage hole; Piston is that the claims 1 are to the piston described in claim 4 any one claim.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420360352.3U CN203948652U (en) | 2014-06-30 | 2014-06-30 | A kind of one-piece piston with cavitation erosion cover and with the water valve of this piston |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420360352.3U CN203948652U (en) | 2014-06-30 | 2014-06-30 | A kind of one-piece piston with cavitation erosion cover and with the water valve of this piston |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203948652U true CN203948652U (en) | 2014-11-19 |
Family
ID=51890689
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420360352.3U Expired - Fee Related CN203948652U (en) | 2014-06-30 | 2014-06-30 | A kind of one-piece piston with cavitation erosion cover and with the water valve of this piston |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203948652U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104089026A (en) * | 2014-06-30 | 2014-10-08 | 广东永泉阀门科技有限公司 | Integral piston with cavitation cover and water valve with same |
-
2014
- 2014-06-30 CN CN201420360352.3U patent/CN203948652U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104089026A (en) * | 2014-06-30 | 2014-10-08 | 广东永泉阀门科技有限公司 | Integral piston with cavitation cover and water valve with same |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C53 | Correction of patent of invention or patent application | ||
| CB03 | Change of inventor or designer information |
Inventor after: Li Biao Inventor after: Wu Baimin Inventor after: Chen Jianming Inventor after: Li Qianmin Inventor after: Huang Mingliang Inventor after: Pan Qingxiang Inventor before: Li Biao |
|
| COR | Change of bibliographic data |
Free format text: CORRECT: INVENTOR; FROM: LI BIAO TO: LI BIAO WU BAIMIN CHEN JIANMING LI QIANMIN HUANG MINGLIANG PAN QINGXIANG |
|
| ASS | Succession or assignment of patent right |
Owner name: BEIJING YONGQUAN TENGDA VALVE TECHNOLOGY CO., LTD. Free format text: FORMER OWNER: GUANGDONG YONGQUAN VALVE TECHNOLOGY CO., LTD. Effective date: 20150527 |
|
| C41 | Transfer of patent application or patent right or utility model | ||
| COR | Change of bibliographic data |
Free format text: CORRECT: ADDRESS; FROM: 528200 FOSHAN, GUANGDONG PROVINCE TO: 100055 XICHENG, BEIJING |
|
| TR01 | Transfer of patent right |
Effective date of registration: 20150527 Address after: 100055 Beijing city Xicheng District Guang'an South Binhe Road No. 31 (Hua Heng Building Room 701) Patentee after: Beijing Yongquan Tengda Valve Technology Co., Ltd. Address before: 528200 Guangdong Province Nanhai District of Foshan City, Jiujiang Longgao Road No. 1 East Mei Patentee before: Guangdong Yongquan Valve Technology Co., Ltd. |
|
| TR01 | Transfer of patent right |
Effective date of registration: 20200608 Address after: 528200 Guangdong Province Nanhai District of Foshan City, Jiujiang Longgao Road No. 1 East Mei Patentee after: GUANGDONG YONGQUAN VALVE TECHNOLOGY Co.,Ltd. Address before: 100055 Beijing city Xicheng District Guang'an South Binhe Road No. 31 (Hua Heng Building Room 701) Patentee before: BEIJING YONGQUAN TENGDA VALVE TECHNOLOGY Co.,Ltd. |
|
| TR01 | Transfer of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20141119 Termination date: 20200630 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |