CN202203418U - Opening and closing valve with balance piston - Google Patents
Opening and closing valve with balance piston Download PDFInfo
- Publication number
- CN202203418U CN202203418U CN2011203437534U CN201120343753U CN202203418U CN 202203418 U CN202203418 U CN 202203418U CN 2011203437534 U CN2011203437534 U CN 2011203437534U CN 201120343753 U CN201120343753 U CN 201120343753U CN 202203418 U CN202203418 U CN 202203418U
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- valve
- barrel
- piston
- flap
- cylinder
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Abstract
The utility model discloses an opening and closing valve with a balance piston, which solves the problems that a water hammer phenomenon easily appears when the existing opening and closing valve is closed and vibration and blare are caused. The opening and closing valve with the balance piston comprises a valve body of which two sides are provided with a fluid inlet and a fluid outlet, and a valve barrel which penetrates through and is fixed on the middle part of the valve body and is communicated with the fluid outlet, wherein a valve cover is connected on the top of the valve barrel; a valve port is formed at the bottom of the valve barrel; a valve cylinder is arranged at the bottom of the valve body which is rightly opposite to the lower part of the valve port; a through center hole is formed at the bottom of the valve cylinder; a positioning retainer ring is arranged on the inner wall of the valve barrel; a spring barrel is connected on the middle part of the positioning retainer ring; a vent hole and a centre hole are formed in a bottom plate of the spring barrel; a valve rod is inserted into the center hole; the top of the valve rod is connected with a hydraulic piston which is arranged inside the valve barrel on the upper part of the positioning retainer ring; the bottom of the valve rod is connected with a valve flap and the balance piston in the valve cylinder; the area of the balance piston is smaller than the area of the valve flap; and a spring is arranged on the valve rod between the bottom plate inside the spring barrel and the bottom of the hydraulic piston. The opening and closing valve with the balance piston has the advantages of simple structure, flexible opening and closing, safe running and the like.
Description
Technical field
The utility model relates to a kind of hydraulic pressure and opens and closes valve, is specially a kind of keying valve with equalizing piston.
Background technique
Existing hydraulic pressure opens and closes valve, when water pump stops, opening and closing valve because hydraulic pressure is uneven, when closing, can produce water hammer, sends loud noise, produces strenuous vibration, and system self and surrounding environment are caused harmful effect.
Summary of the invention
The purpose of the utility model is the problem that exists in the existing technology in order to solve, and a kind of keying valve with equalizing piston is provided, and can well solve to open and close valve when closing, because the water attack problem that the hydraulic pressure imbalance produces.
The utility model is to adopt following technological scheme to realize:
A kind of keying valve with equalizing piston; Comprise that both sides have the valve body of fluid inlet/outlet; Run through the valve cylinder that is fixed in valve body middle part and communicates with fluid output, valve cylinder open-topped and the valve gap, the bottom that are connected with band hydraulic control mouth have valve port, wherein; Valve body bottom over against the valve port below is provided with a valve barrel, and the central position of valve barrel bottom offers the through hole with atmosphere; The valve cylinder inwall is provided with positioning retainer ring; The positioning retainer ring middle part is connected with a spring strut; Offer vent and center hole on the base plate of spring strut, cover is inserted with valve rod in the center hole, and the valve stem tip hydraulic piston interior with being located at positioning retainer ring top valve cylinder is connected; The valve rod bottom is connected with the flap that cooperates with valve port respectively and is located at the equalizing piston in the valve barrel, and the area of equalizing piston is less than the area of flap; Be provided with the spring that is placed on the valve rod between base plate in the spring strut and the hydraulic piston bottom; The axis of valve cylinder, spring strut and valve barrel is all on same straight line.
The concrete working procedure of the utility model is following:
After water pump is pressed into the upper space of hydraulic piston in the valve cylinder with water by the hydraulic control mouth on the valve gap; Hydraulic piston moves down under the effect of hydraulic coupling; Spring between compression hydraulic piston bottom and the spring strut; Move down synchronously through valve rod drive flap and equalizing piston, flap is opened away from valve port, pass through valve port conducting between fluid inlet and the fluid output this moment.When water pump quit work, the fluid pressure in hydraulic control mouth and the valve cylinder in the hydraulic piston upper space disappeared, and ducted pressure of return water just acts on the flap bottom; Give power that makes progress of flap; Add the restoring force of spring strut inner spring, hydraulic piston is moved upward, and move synchronously through valve rod drive flap and equalizing piston; Finally make flap and valve port closed, end thereby make between fluid inlet and the fluid output.Wherein, the flap of traditional keying valve below is not provided with equalizing piston, so after water pump stops; It is exactly the area of whole flap that flap receives the lifting surface area of pressure of return water in the pipeline; So it is bigger that it receives pressure of return water upwards, the restoring force of spring is easy to generate water hammer in addition; Take place when making flap and valve port closed to produce loud noise than big bang.And the utility model under flap, also be provided with an area less than the flap area and with the equalizing piston of atmosphere; This equalizing piston can be offset pressure of return water greatly for flap, make the lifting surface area of flap be merely the difference in areas between flap and the equalizing piston, reduces when water pump stops after in the pipeline backwater to the upward pressure of flap with this; Action is soft when closing; Extenuate water hammer, noise is eliminated in the vibrations when reducing flap and valve port closure.In addition, positioning retainer ring plays the location hydraulic piston; The effect of valve barrel is the complex equilibrium piston, location and guiding equalizing piston; The vent of spring strut bottom all is the effect of playing equilibrium air pressure with through hole bottom the valve barrel, makes hydraulic piston and the equalizing piston can freedom of movement.
Described hydraulic piston, equalizing piston and flap all are made up of punch pad, lower bolster and the diaphragm seal that is sandwiched between the upper and lower backing plate.Such structure is more fastening, can strengthen sealing effect.
The utility model design is ingenious, simple in structure, and the equalizing piston of increase can effectively be alleviated the water hammer that the keying valve produces when cutting out, reduced vibration, eliminated noise, makes this keying valve operation safer, opens and closes more flexible.
Description of drawings
Fig. 1 is the structural representation of the utility model.
Among the figure: 1-valve body, 2-valve gap, 3-valve cylinder, 4-valve port, 5-valve rod, 6-flap, 7-positioning retainer ring, 8-spring strut, 9-hydraulic piston, 10-equalizing piston, 11-hydraulic control mouth, 12-spring, 13-fluid inlet, 14-fluid output.
Embodiment
Below in conjunction with accompanying drawing the utility model is done further to describe:
As shown in Figure 1; A kind of keying valve with equalizing piston; Comprise that both sides have the valve body 1 of fluid inlet/ outlet 14,15, run through the valve cylinder 3 that is fixed in valve body 1 middle part and communicates with fluid output 15, valve cylinder 3 open-toppeds and the valve gap 2, the bottom that are connected with band hydraulic control mouth 12 have valve port 4; Valve body 1 bottom over against valve port 4 belows is provided with a valve barrel 9, and the central position of valve barrel 9 bottoms offers the through hole with atmosphere; Valve cylinder 3 inwalls are provided with positioning retainer ring 7; Positioning retainer ring 7 middle parts are connected with a spring strut 8; Offer vent and center hole on the base plate of spring strut 8, cover is inserted with valve rod 5 in the center hole, valve rod 5 tops be located at positioning retainer ring 7 top valve cylinders 3 interior hydraulic pistons 10 and be connected; Valve rod 5 bottoms are connected with flap 6 that cooperates with valve port 4 and the equalizing piston of being located in the valve barrel 9 11 respectively, and the area of equalizing piston 11 is less than the area of flap 6; Be provided with the spring 13 that is placed on the valve rod between base plate in the spring strut 8 and hydraulic piston 10 bottoms; The axis of valve cylinder 3, spring strut 8 and valve barrel 9 is all on same straight line.
Claims (2)
1. keying valve with equalizing piston; Comprise that both sides have the valve body (1) of fluid inlet/outlet (14,15); Run through the valve cylinder (3) that is fixed in valve body (1) middle part and communicates with fluid output (15); Valve cylinder (3) open-topped and be connected with the band hydraulic control mouth (12) valve gap (2), bottom have valve port (4); It is characterized in that: valve body (1) bottom over against valve port (4) below is provided with a valve barrel (9), and the central position of valve barrel (9) bottom offers the through hole with atmosphere; Valve cylinder (3) inwall is provided with positioning retainer ring (7); Positioning retainer ring (7) middle part is connected with a spring strut (8); Offer vent and center hole on the base plate of spring strut (8); Cover is inserted with valve rod (5) in the center hole; Valve rod (5) the top hydraulic piston (10) interior with being located at positioning retainer ring (7) top valve cylinder (3) is connected, and valve rod (5) bottom is connected with the flap (6) that cooperates with valve port (4) respectively and is located at the equalizing piston (11) in the valve barrel (9), and the area of equalizing piston (11) is less than the area of flap (6); Be provided with the spring (13) that is placed on the valve rod (5) between base plate in the spring strut (8) and hydraulic piston (10) bottom; The axis of valve cylinder (3), spring strut (8) and valve barrel (9) is all on same straight line.
2. the keying valve of band equalizing piston according to claim 1 is characterized in that: described hydraulic piston (10), equalizing piston (11) and flap (6) all are made up of punch pad, lower bolster and the diaphragm seal that is sandwiched between the upper and lower backing plate.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011203437534U CN202203418U (en) | 2011-09-14 | 2011-09-14 | Opening and closing valve with balance piston |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011203437534U CN202203418U (en) | 2011-09-14 | 2011-09-14 | Opening and closing valve with balance piston |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202203418U true CN202203418U (en) | 2012-04-25 |
Family
ID=45967539
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2011203437534U Expired - Fee Related CN202203418U (en) | 2011-09-14 | 2011-09-14 | Opening and closing valve with balance piston |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202203418U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106870815A (en) * | 2017-03-17 | 2017-06-20 | 湖南泵阀制造有限公司 | Balanced type Direct Action Type water attack release valve |
| CN111226067A (en) * | 2018-09-27 | 2020-06-02 | Mt.H控制阀株式会社 | Control valve device |
-
2011
- 2011-09-14 CN CN2011203437534U patent/CN202203418U/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106870815A (en) * | 2017-03-17 | 2017-06-20 | 湖南泵阀制造有限公司 | Balanced type Direct Action Type water attack release valve |
| CN106870815B (en) * | 2017-03-17 | 2022-12-20 | 湖南泵阀制造有限公司 | Balance type direct-acting water attack relief valve |
| CN111226067A (en) * | 2018-09-27 | 2020-06-02 | Mt.H控制阀株式会社 | Control valve 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: 20120425 Termination date: 20140914 |
|
| EXPY | Termination of patent right or utility model |