CN202927181U - In-and-out throttling pressure different self-power on-and-off device - Google Patents
In-and-out throttling pressure different self-power on-and-off device Download PDFInfo
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- CN202927181U CN202927181U CN 201220612139 CN201220612139U CN202927181U CN 202927181 U CN202927181 U CN 202927181U CN 201220612139 CN201220612139 CN 201220612139 CN 201220612139 U CN201220612139 U CN 201220612139U CN 202927181 U CN202927181 U CN 202927181U
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- valve
- main valve
- middle cavity
- lumen
- control room
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Abstract
The utility model relates to an in-and-out throttling pressure different self-power on-and-off device which comprises a main valve, a control end of the main valve is connected with a pilot valve, a valve seat is arranged at a valve body inlet end of the main valve, a middle cavity control chamber is arranged in the valve body of the main valve, the middle cavity control chamber is connected with a valve clack through a main spring, the outer end of the valve clack can be in seal fit with the valve seat so as to switch off the main valve, the outer side wall of the valve clack is in seal fit with the inner side wall of the middle cavity control chamber so as to form a piston type structure, the valve clack is provided with a middle cavity inlet throttling hole leading to the middle cavity control chamber, and the middle cavity control chamber is provided with a middle cavity outlet throttling hole leading to the pilot valve. The throttling flow rate of the inlet and outlet of the middle cavity control chamber of the main valve is controlled by the pilot valve to be different through medium pressure, thereby forming the valve which is switched on or off and regulated by force of pressure difference at the piston type valve clack of the main valve; the valve can be evolved into different control valves according to different usage purposes and function places, and can be widely applied for living water supply, fire-fighting systems and industrial water supply systems.
Description
Technical field
The utility model relates to a kind of turnover chock pressure difference start-stop device of relying on oneself.
Background technique
At present, in the places such as domestic water, fire-fighting system and industrial water supply system, generally the difference according to application target and function is equipped with various valves, such as emergency shut-in valve, float valve, solenoid valve, reduction valve, safety check and Decompression valves etc.These valves exist complex structure, function singleness, big energy-consuming and high in cost of production defective mostly, therefore are necessary to design the valving that a kind of versatility is high, be easy to be assembled into various duty valves and reduce energy consumption.
The model utility content
The utility model makes improvements for the problem that above-mentioned prior art exists, be that the technical problems to be solved in the utility model is to provide a kind of simple in structure, energy saving and the high turnover chock pressure difference of the versatility start-stop device of relying on oneself, can be easily be assembled into various valves according to the difference in application target, function place.
in order to solve the problems of the technologies described above, the technical solution of the utility model is: a kind of turnover chock pressure difference start-stop device of relying on oneself, comprise main valve, the control end of described main valve is connected with pilot valve, the valve body entrance point of described main valve is provided with valve seat, be provided with the lumen control room in the valve body of described main valve, be connected with the outer end through main spring in described lumen control room and can coordinate to close with valve base sealing the flap of main valve, the madial wall in the outer side wall of described flap and lumen control room is sealed and matched to form piston cylinder operator, described flap offers the lumen inlet throttle hole of leading to the lumen control room, described lumen control room is provided with the lumen outlet throttling hole of leading to pilot valve.
In technique scheme, this turnover chock pressure difference start-stop device of relying on oneself is to be controlled the difference of the lumen control room inlet/outlet throttling flow of main valve by pilot valve by pressure medium, has formed the rely on oneself valve of keyings, adjusting of pressure reduction before and after main valve piston formula flap.This turnover chock pressure difference start-stop device of relying on oneself mainly is comprised of main valve, a pilot valve and the conduit of setting up and pressure gauge etc., and wherein pilot valve moves with the variation of pressure medium.According to the difference in application target, function place, this turnover chock pressure difference start-stop device of relying on oneself can develop into the adjustable emergency shut-in valve of direct current piston type, direct current piston type remote controlled float ball valve, direct current piston type electromagnetic control valve, direct current piston type adjustable compression release valve, direct current piston check valve, direct current piston type Decompression valves etc.The start-stop device level is installed and at right angle setting but this turnover chock pressure difference is relied on oneself, and is widely used in domestic water, fire-fighting system and industrial water supply system.
Below in conjunction with the drawings and specific embodiments, the utility model is described in further detail.
Description of drawings
Fig. 1 be the utility model embodiment entirely open phase diagram.
Fig. 2 is the utility model embodiment's adjustment state figure.
Fig. 3 is the utility model embodiment's full-shut position figure.
In figure: 1-valve body, 2-lumen control room, 3-spring, 4-flap, 5-rubber seal, 6-lumen inlet throttle hole, 7-lumen outlet throttling hole, 8-pilot valve, 9-O RunddichtringO, 10-valve seat.
Embodiment
as shown in Fig. 1 ~ 3, a kind of turnover chock pressure difference start-stop device of relying on oneself, comprise main valve, the control end of described main valve is connected with pilot valve 8, valve body 1 entrance point of described main valve is provided with valve seat 10, be provided with lumen control room 2 in the valve body 1 of described main valve, described lumen control room 2 is interior to be connected with the outer end through spring 3 and can be sealed and matched to close by rubber seal 5 and valve seat 10 flap 4 of main valve, the outer side wall of described flap 4 is sealed and matched to form piston cylinder operator by the madial wall in O RunddichtringO 9 and lumen control room 2, described flap 4 offers the lumen inlet throttle hole 6 of leading to lumen control room 2, described lumen control room 2 is provided with the lumen outlet throttling hole 7 of leading to pilot valve 8, can be according to the difference of valve application places and setting up of valve body 1 or valve body 1, pressure gauge is set on conduit.
This turnover chock pressure difference start-stop device of relying on oneself is poor as power to import and export pressure medium, controlled by pilot valve 8, make the piston type flap 4 of main valve carry out the hydraulic type differential operation, regulated by hydraulic automatism fully, thereby make main valve flap 4 open fully, close fully or be in adjustment state.Lumen inlet throttle hole 6 when WATER AS FLOW MEDIUM from the flap 4 enters in lumen control room 2, the lumen outlet throttling hole 7 in lumen control room 2 is subjected to the control of pilot valve 8, the little valve port of himself can open greatly or turn down by the variation of outlet pressure to pilot valve 8, thereby form the force value that different flow changes main valve lumen control room 2, control the adjusted position of main valve flap 4.
As shown in Figure 1, by waterpower or when manually opening the lumen outlet throttling hole 7 in lumen control room 2, the force value that acts on flap 4 entrance points is just greater than the force value in lumen control room 2 when pilot valve 8, thereby main valve flap 4 shifted onto the position of opening fully.
As shown in Figure 2, lumen outlet throttling hole 7 flows when pilot valve 8 by waterpower or manual tune lumen control room 2 are during greater than lumen inlet throttle hole 6 flow of flap 4, the pressure difference that flap 4 front and back form makes flap 4 parts open and close, main valve flap 4 just is in adjustment state, its adjusted position depends on the control action of pilot valve 8, forms step-down or the pressure release of main valve.
As shown in Figure 3, when entirely opening the lumen outlet throttling hole 7 in lumen control room 2 by waterpower or artificial pilot valve 8, the force value that acts on flap 4 entrance points is just less than the force value in lumen control room 2, thereby the internal pressure in lumen control room 2 is shifted main valve flap 4 onto the position of closing fully.
The above is only preferred embodiment of the present utility model, and all equalizations of doing according to the utility model claim change and modify, and all should belong to covering scope of the present utility model.
Claims (4)
1. turnover chock pressure difference start-stop device of relying on oneself, comprise main valve, the control end of described main valve is connected with pilot valve, it is characterized in that: the valve body entrance point of described main valve is provided with valve seat, be provided with the lumen control room in the valve body of described main valve, be connected with the outer end through main spring in described lumen control room and can coordinate to close with valve base sealing the flap of main valve, the madial wall in the outer side wall of described flap and lumen control room is sealed and matched to form piston cylinder operator, described flap offers the lumen inlet throttle hole of leading to the lumen control room, described lumen control room is provided with the lumen outlet throttling hole of leading to pilot valve.
2. the turnover chock pressure difference according to claim 1 start-stop device of relying on oneself, it is characterized in that: setting up of described valve body or valve body is provided with pressure gauge on conduit.
3. the turnover chock pressure difference according to claim 1 start-stop device of relying on oneself, it is characterized in that: the outer side wall of described flap is provided with the O RunddichtringO.
4. the turnover chock pressure difference according to claim 1 start-stop device of relying on oneself, it is characterized in that: the outer end of described flap is provided with rubber seal.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220612139 CN202927181U (en) | 2012-11-19 | 2012-11-19 | In-and-out throttling pressure different self-power on-and-off device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220612139 CN202927181U (en) | 2012-11-19 | 2012-11-19 | In-and-out throttling pressure different self-power on-and-off device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202927181U true CN202927181U (en) | 2013-05-08 |
Family
ID=48217141
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201220612139 Expired - Lifetime CN202927181U (en) | 2012-11-19 | 2012-11-19 | In-and-out throttling pressure different self-power on-and-off device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202927181U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102927338A (en) * | 2012-11-19 | 2013-02-13 | 福建高中压阀门科技有限公司 | Inlet/outlet throttling pressure differential self-powered opening-closing device and application thereof |
-
2012
- 2012-11-19 CN CN 201220612139 patent/CN202927181U/en not_active Expired - Lifetime
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102927338A (en) * | 2012-11-19 | 2013-02-13 | 福建高中压阀门科技有限公司 | Inlet/outlet throttling pressure differential self-powered opening-closing device and application thereof |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CP03 | Change of name, title or address |
Address after: Fuxing Road, Jinan District, Fuzhou city of Fujian province 350014 No. 49 No. 3 No. 7 No. -8 store Patentee after: FUJIAN QUANPAI VALVE TECHNOLOGY CO.,LTD. Address before: 350014 Industrial Park in Fuzhou, Fujian Province Patentee before: Fujian High & Middle Pressure Valve Technology Co.,Ltd. |
|
| CP03 | Change of name, title or address | ||
| CX01 | Expiry of patent term |
Granted publication date: 20130508 |
|
| CX01 | Expiry of patent term |