CN201575191U - Valve used as either foot valve or safety valve - Google Patents
Valve used as either foot valve or safety valve Download PDFInfo
- Publication number
- CN201575191U CN201575191U CN2009203166037U CN200920316603U CN201575191U CN 201575191 U CN201575191 U CN 201575191U CN 2009203166037 U CN2009203166037 U CN 2009203166037U CN 200920316603 U CN200920316603 U CN 200920316603U CN 201575191 U CN201575191 U CN 201575191U
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- valve
- valve body
- barrier film
- pressure
- bolt
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Abstract
The utility model relates to a valve used as either a foot valve or a safety valve. The valve comprises a locking device, a valve top, a pressure generating device, a diaphragm and a valve body, wherein the valve top, the pressure generating device, the diaphragm and the valve body are sequentially arranged from top to bottom; the pressure generating device is accommodated in the valve top, the diaphragm is accommodated in the valve body, and the valve top and the valve body are fixed together through the locking device; and the valve body consists of a bearing table for supporting the diaphragm and a valve seat, the valve seat is located in the middle of the internal valve body, and the bearing table is positioned at the top of the valve body. As the top surface of the bearing table is higher than that of the valve seat, a gap is formed between the diaphragm and the top surface of the valve seat when the pressure generating device controlled by an adjusting bolt exerts no pressure on the diaphragm covering the bearing table. The utility model improves the working stability of a metering pump system and the sealing performance between the diaphragm and the valve seat, and is convenient to operate.
Description
[technical field]
The utility model relates to a kind of valve as back pressure valve or safety valve, particularly a kind of valve as back pressure valve or safety valve in metering pump system.
[background technique]
Back pressure valve and safety valve are the common components in the present metering pump system.The back pressure valve of prior art or safety valve generally all comprise valve top, Pressure generator, barrier film and valve body.This valve top, this Pressure generator, this barrier film and this valve body are provided with from top to bottom in regular turn.This valve body comprises import, outlet, circular channel and valve seat.This import links to each other with this circular channel.This valve seat is positioned at this valve inner, and it links to each other with this outlet.This barrier film directly contacts with this valve seat.
Yet, when initially each parts being installed,, make the air that is trapped in this valve seat to be released easily because this barrier film contacts all the time with the valve seat of this valve body, thereby easily cause whole metering pump system the gas lock phenomenon to occur, cause metering pump system to be easy to damage.In addition, because described barrier film and the top of this valve seat are faces and the contacting of face, when being mixed with impurity in the fluid that flows into this valve, impurity remains on the end face of this valve seat, make this valve seat end face can not contact fully with the bottom surface of this barrier film, be prone to poorly sealed phenomenon between the two thereby make, cause the leakage of described fluid.In addition, existing back pressure valve or safety valve adopt the valve body of machining mostly, and more movably parts are arranged in the valve body, and it causes bulky, the reliability of back pressure valve or safety valve to reduce.
[model utility content]
The purpose of this utility model is exactly easily to cause technical problems such as poorly sealed, operation inconvenience between metering pump system damage, barrier film and the valve seat and reliability are low for what solve that prior art back pressure valve or safety valve exist, and the utility model provides a kind of valve as back pressure valve or safety valve.
Concrete technological scheme of the present utility model is as follows:
The utility model provides a kind of valve as back pressure valve or safety valve, it comprises a lockup device, one valve top, one Pressure generator, one barrier film and a valve body, this valve top, this Pressure generator, this barrier film and this valve body are provided with from top to bottom in regular turn, this Pressure generator is accommodated on this valve top, this valve body is accommodated this barrier film, this lockup device is fixed together this valve top and this valve body, this valve body comprises that one is used for accepting the bearing table and a valve seat of this barrier film, this valve seat is positioned at the neutral position of this valve body, this bearing table is positioned at the top of this valve body, the end face of this bearing table is higher than the end face of this valve seat, make and to control this Pressure generator not when covering this barrier film on this bearing table and exert pressure, existence one gap between the end face of this barrier film and this valve seat when this adjusting bolt; And when this adjusting bolt was controlled this Pressure generator this barrier film is exerted pressure, this barrier film contacted with the end face of this valve seat.
Described valve seat comprises a plurality of circular grooves that are positioned at this valve seat top, and described a plurality of circular grooves are the annular concentric groove.
Described valve body further comprises an import, an outlet and a sector channel, and this import lays respectively at the relative two ends of this valve body with this outlet, and this valve seat links to each other with this outlet, and this sector channel is close to a side of this valve seat and links to each other with this import.
Described valve top is pyramidal structure, its inside is by comprising one first screw and a dish type hole under last successively, its outside comprises a plurality of stiffening ribs, and this dish type hole is used for accommodating this Pressure generator, and the two ends of this stiffening rib are connected to the top and the bottom on this valve top.
Described pressure regulator comprises that one regulates a bolt and a locking nut, this is regulated this locking nut of screw bolt passes and contacts with this Pressure generator with this valve top, this adjusting bolt is used for regulating the size of the pressure that this Pressure generator produces, the chi footpath of this locking nut is corresponding with the chi footpath of this first screw, the chi footpath of this locking nut and this chi of regulating bolt are directly corresponding, and this locking nut is used for fixing this adjusting bolt.
Described Pressure generator comprises disk on, a spring and a lower disc, should go up the top that disk is arranged on this dish type hole, should go up disk contacts with the adjusting bolt that passes this first screw, this spring is arranged on this between the disk and this lower disc, this spring is used to provide elastic stress, and this lower disc contacts with this barrier film.
The outside on described valve top also comprises a plurality of second screws, and described a plurality of second screws all run through the bottom on this valve top.
Described valve body also comprises a plurality of the 3rd screws, and described a plurality of the 3rd screws all run through the position, a plurality of edge of this valve body.
Described lockup device comprises a plurality of locking bolts and a plurality of bolt cover, each locking bolt all runs through the 3rd screw of this valve body and second screw on this valve top from the bottom to top successively, make this valve body fixedly connected with this valve top, each bolt cover is used for the helical thread portion that each locking bolt exposes is covered to avoid it to be corroded.
Described valve body also comprises two blind holes and two blank caps, and the both sides that described two blind holes lay respectively at this valve body can be communicated with the valve inlet chamber, and described two blank caps are used for covering described two blind holes respectively.
Compared to prior art, the main beneficial effect that is used as the valve of back pressure valve or safety valve described in the utility model is:
(1). the described top that is used for carrying the bearing table of described barrier film is higher than the height of described valve seat, when making on this valve as back pressure valve or safety valve is unassembled this Pressure generator, add a cover between the top of this barrier film on this bearing table and this valve seat and have a gap, thereby make the air that is trapped in this valve seat be easy to be released, avoid whole metering pump system the gas lock phenomenon to occur, improved the Security of metering pump system.
(2). the top of described valve seat is provided with the circular groove of a plurality of cross sections for " V " shape, contact with described barrier film by described a plurality of circular grooves, when being mixed with impurity in the fluid that flows into this valve, above-mentioned ring channel structures can be held impurity, thereby has improved the sealability between this barrier film and this valve seat.
(3). contiguous this valve seat of the described sector channel that links to each other with the import of this valve body is provided with, it is the vertical passage that leads to described barrier film, and therefore, described sector channel has increased the flow of fluid and reduced the pressure difference loss that fluid flows through this valve body.
(4). the utility model changes described Pressure generator and is applied to pressure on the described barrier film by rotating described adjusting bolt, makes this valve working have in the different systems that require in fluid pressure.Because valve of the present utility model adopts the molding and forming structure, so its compact structure has strengthened reliability, is convenient to make with the use that reduces cost in a large number, also reduces it needed space is installed.
(5). because the both sides of described valve body all are provided with blind hole, institute is so that elements such as setting pressure table are beneficial to the scalability that improves the utility model valve.
[description of drawings]
Fig. 1 is the perspective exploded view of the utility model as the valve of back pressure valve or safety valve.
Fig. 2 is the plan view of the utility model as the valve body of the valve of back pressure valve or safety valve.
Fig. 3 for the utility model as the valve body of the valve of back pressure valve or safety valve partial sectional view along described import and Way out.
Fig. 4 is used as the sectional view of the valve of back pressure valve or safety valve along described import and Way out for the utility model.
[embodiment]
The utility model relates to a kind of valve as back pressure valve or safety valve, describes the technical solution of the utility model in detail below in conjunction with accompanying drawing:
As Fig. 1, Fig. 2 and shown in Figure 3, the utility model provides a kind of valve as back pressure valve or safety valve, it adopts the molding and forming structure, and it comprises a pressure regulator (not indicating), a lockup device (not indicating), valve top 30, one Pressure generator (not indicating), a barrier film 50 and a valve body 60.This valve top 30, this Pressure generator 40, this barrier film 50 and this valve body 60 are provided with from top to bottom in regular turn.This Pressure generator 40 is accommodated on this valve top 30.This valve body 60 is accommodated this barrier film 50.This pressure regulator is positioned at the top on this valve top 30, and passes this valve top 30 and contact with this Pressure generator 40.This lockup device is used for this valve top 30 and this valve body 60 are fixed together.
This pressure regulator comprises that one regulates a bolt 110 and a locking nut 120.This adjusting bolt 110 passes this locking nut 120 and this valve top 30 successively and contacts with this Pressure generator, and it is used for regulating the size that this Pressure generator is applied to the pressure on the described barrier film 50.The aperture of this locking nut 120 is corresponding with this chi footpath of regulating bolt 110, and it is used for fixing this adjusting bolt 110, prevents that this adjusting bolt 110 from changing the size that this Pressure generator is applied to the pressure on the described barrier film 50 arbitrarily.
This valve top 30 is a pyramidal structure, and its inside is by comprising one first screw 310 and a dish type hole 320 successively under last, and its outside comprises a plurality of stiffening ribs 330 and four second screws 340.The aperture of this first screw 310 is corresponding with the chi footpath of this locking nut 110.This dish type hole 320 is used for accommodating this Pressure generator.The two ends of this stiffening rib 330 are connected to the top and the bottom on this valve top 30.Described four second screws 340 all run through the bottom on this valve top 30.
This Pressure generator comprises disk 410, a spring 420 and a lower disc 430 on one.Should go up the top that disk 410 is arranged on this dish type hole 320, it contacts with the adjusting bolt 110 that this passes this first screw 310.This spring 420 is arranged on this between the disk 410 and this lower disc 430, and it is used to provide elastic stress.This lower disc 430 contacts with this barrier film 50.
This valve body 60 comprises an import 610, an outlet 620, one bearing table 630, a valve seat 640, a sector channel 650, four the 3rd screws 660, two blind holes 670 and two blank caps 680.This import 610 and this outlet 620 lay respectively at the relative two ends of this valve body 60.This valve seat 640 is the cylindrical hole structure, and it is positioned at the neutral position of this valve body 60, and it comprises the circular groove 642 of a plurality of cross sections for " V " shape.Described a plurality of circular groove 642 is the annular concentric groove, and it is arranged on the end face of this valve seat 640, promptly is positioned at the end face of the sidewall of cylindrical hole.This valve seat 640 links to each other with this outlet 620.One side of this sector channel 650 contiguous these valve seats 640, it links to each other with this import 610 and vertically leads to described barrier film 50.This bearing table 630 is positioned at the top of this valve body 60, and it is used for accepting this barrier film 50.The end face of this bearing table 630 is higher than the end face of this valve seat 640, promptly exist certain height poor between two faces, thereby make when this adjusting bolt 110 these Pressure generators of control are not exerted pressure to the end face that covers this barrier film 50 on this bearing table 630, have a gap between the end face of the bottom surface of this barrier film 50 and this valve seat 640; And when these adjusting bolt 110 these Pressure generators of control are exerted pressure to the end face that covers this barrier film 50 on this bearing table 630, the bottom surface of this barrier film 50 contacts with the end face of this valve seat 640, promptly makes the bottom surface of this barrier film 50 contact with described a plurality of circular grooves 642.Described two blind holes 670 lay respectively at the both sides of this valve body 60 of contiguous this import 610 and this outlet 620, and described two blind holes are drilled through the direct and valve inlet chamber UNICOM in back.Described two blank caps 680 are used for covering described two blind holes 670 respectively.Described four the 3rd screws 660 all run through the position, four edges of this valve body 60.
This lockup device comprises four locking bolts 210 and four bolt covers 220.Each locking bolt 210 all runs through the 3rd screw 660 of this valve body 60 and second screw 340 on this valve top 30 from the bottom to top successively, makes this valve body 60 push up 30 with this valve and fixedlys connected.Each bolt cover 220 is used for the helical thread portion that each locking bolt 210 exposes is covered to avoid it to be corroded.
As shown in Figure 4, valve working principle as back pressure valve or safety valve of the present invention is: by rotating described adjusting bolt 110, regulate described Pressure generator and be applied to pressure on the described barrier film 50, thereby make this valve working have in the different systems that require in fluid pressure.External fluid flow in the described valve body 60 by described import 610 and by described sector channel 650, when external fluid is applied to pressure on described barrier film 50 bottom surfaces and is applied to the pressure of described barrier film 50 end faces greater than described Pressure generator, described barrier film 50 moves up, make external fluid flow into this valve seat 640, and then flow out by described outlet 620; When external fluid is applied to pressure on described barrier film 50 bottom surfaces and is applied to the pressure of described barrier film 50 end faces less than described Pressure generator, described barrier film 50 moves down and closely contacts with this valve seat 640, makes external fluid stop to flow into this valve seat 640.
It is described that valve as back pressure valve or safety valve described in the utility model is not limited to above-mentioned mode of execution, as: the quantity of described locking bolt, bolt cover, second screw and the 3rd screw is not limited to four, and its quantity can or be less than four a plurality of more than four; The quantity of described blind hole and blank cap also can be for a plurality of.
The utility model provides a kind of valve as counterbalance valve or safety valve, and compared to prior art, main beneficial effect of the present utility model is:
(1). the described top that is used for carrying the plummer of described barrier film is higher than the height of described valve seat, so that on this valve as counterbalance valve or safety valve is unassembled during this Pressure generator, add a cover between the top of this barrier film on this plummer and this valve seat and have a gap, thereby so that the air that is trapped in this valve seat is easy to be released, avoid whole metering pump system the gas lock phenomenon to occur, improved the security of metering pump system.
(2). the top of described valve seat is provided with a plurality of cross sections and is the cannelure of " V " shape, contact with described barrier film by described a plurality of cannelures, when being mixed with impurity in the fluid that flows into this valve, above-mentioned ring channel structures can be held impurity, thereby has improved the sealing property between this barrier film and this valve seat.
(3). contiguous this valve seat of the described sector channel that links to each other with the import of this valve body arranges, and it is the vertical channel that leads to described barrier film, and therefore, described sector channel has increased the flow of fluid and reduced the pressure differential loss that flow is crossed this valve body.
(4). the utility model changes described Pressure generator and is applied to pressure on the described barrier film by rotating described adjusting bolt, so that this valve working has in the different systems that require in fluid pressure. Because valve of the present utility model adopts the injection mo(u)lding structure, so its compact conformation has strengthened reliability, is convenient to make with the use that reduces cost in a large number, also reduces it needed space is installed.
(5). because the both sides of described valve body all are provided with blind hole, institute is so that the elements such as setting pressure table are beneficial to the scalability that improves the utility model valve.
Claims (10)
1. valve as back pressure valve or safety valve, it comprises a lockup device, one valve top, one Pressure generator, one barrier film and a valve body, this valve top, this Pressure generator, this barrier film and this valve body are provided with from top to bottom in regular turn, this Pressure generator is accommodated on this valve top, this valve body is accommodated this barrier film, this lockup device is fixed together this valve top and this valve body, it is characterized in that: this valve body comprises that one is used for accepting the bearing table and a valve seat of this barrier film, this valve seat is positioned at the neutral position of this valve body, this bearing table is positioned at the top of this valve body, the end face of this bearing table is higher than the end face of this valve seat, make and to control this Pressure generator not when covering this barrier film on this bearing table and exert pressure, existence one gap between the end face of this barrier film and this valve seat when this adjusting bolt; And when this adjusting bolt was controlled this Pressure generator this barrier film is exerted pressure, this barrier film contacted with the end face of this valve seat.
2. the valve as back pressure valve or safety valve as claimed in claim 1 is characterized in that: this valve seat comprises a plurality of circular grooves that are positioned at the cross section at this valve seat top for " V " shape, and described a plurality of circular grooves are the annular concentric groove.
3. the valve as back pressure valve or safety valve as claimed in claim 2, it is characterized in that: this valve body further comprises an import, an outlet and a sector channel, this import lays respectively at the relative two ends of this valve body with this outlet, this valve seat links to each other with this outlet, and this sector channel is close to a side of this valve seat and links to each other with this import.
4. as claim 1 or 3 described valves as back pressure valve or safety valve, it is characterized in that: this valve top is pyramidal structure, its inside is by comprising one first screw and a dish type hole under last successively, its outside comprises a plurality of stiffening ribs, this dish type hole is used for accommodating this Pressure generator, and the two ends of this stiffening rib are connected to the top and the bottom on this valve top.
5. the valve as back pressure valve or safety valve as claimed in claim 4, it is characterized in that: this pressure regulator comprises that one regulates a bolt and a locking nut, this is regulated this locking nut of screw bolt passes and contacts with this Pressure generator with this valve top, this adjusting bolt is used for regulating the size of the pressure that this Pressure generator produces, the chi footpath of this locking nut is corresponding with the chi footpath of this first screw, the chi footpath of this locking nut and this chi of regulating bolt are directly corresponding, and this locking nut is used for fixing this adjusting bolt.
6. the valve as back pressure valve or safety valve as claimed in claim 5, it is characterized in that: this Pressure generator comprises disk on, a spring and a lower disc, should go up the top that disk is arranged on this dish type hole, should go up disk contacts with the adjusting bolt that passes this first screw, this spring is arranged on this between the disk and this lower disc, this spring is used to provide elastic stress, and this lower disc contacts with this barrier film.
7. the valve as back pressure valve or safety valve as claimed in claim 6 is characterized in that: the outside on described valve top also comprises a plurality of second screws, and described a plurality of second screws all run through the bottom on this valve top.
8. the valve as back pressure valve or safety valve as claimed in claim 7, it is characterized in that: this valve body also comprises a plurality of the 3rd screws, described a plurality of the 3rd screws all run through the position, a plurality of edge of this valve body.
9. the valve as back pressure valve or safety valve as claimed in claim 8, it is characterized in that: this lockup device comprises a plurality of locking bolts and a plurality of bolt cover, each locking bolt all runs through the 3rd screw of this valve body and second screw on this valve top from the bottom to top successively, make this valve body fixedly connected with this valve top, each bolt cover is used for the helical thread portion that each locking bolt exposes is covered.
10. the valve as back pressure valve or safety valve as claimed in claim 1, it is characterized in that: this valve body also comprises two blind holes and two blank caps, described two blind holes lay respectively at the both sides of this valve body, described two blind holes are drilled through the direct and valve inlet chamber UNICOM in back, and described two blank caps are used for covering described two blind holes respectively.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009203166037U CN201575191U (en) | 2009-12-04 | 2009-12-04 | Valve used as either foot valve or safety valve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009203166037U CN201575191U (en) | 2009-12-04 | 2009-12-04 | Valve used as either foot valve or safety valve |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201575191U true CN201575191U (en) | 2010-09-08 |
Family
ID=42695067
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2009203166037U Expired - Lifetime CN201575191U (en) | 2009-12-04 | 2009-12-04 | Valve used as either foot valve or safety valve |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201575191U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102829214A (en) * | 2012-08-20 | 2012-12-19 | 浙江鼎耐塑胶管阀有限公司 | Plastic membrane valve with bracket |
| CN104729056A (en) * | 2013-12-24 | 2015-06-24 | 珠海格力电器股份有限公司 | Water collecting head assembly and air conditioner |
| CN110578806A (en) * | 2019-09-30 | 2019-12-17 | 上海龙猛机械有限公司 | Shock attenuation back pressure valve |
-
2009
- 2009-12-04 CN CN2009203166037U patent/CN201575191U/en not_active Expired - Lifetime
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102829214A (en) * | 2012-08-20 | 2012-12-19 | 浙江鼎耐塑胶管阀有限公司 | Plastic membrane valve with bracket |
| CN102829214B (en) * | 2012-08-20 | 2016-01-13 | 浙江鼎耐塑胶管阀有限公司 | The standoff plastic diaphragm valve of a kind of band |
| CN104729056A (en) * | 2013-12-24 | 2015-06-24 | 珠海格力电器股份有限公司 | Water collecting head assembly and air conditioner |
| CN110578806A (en) * | 2019-09-30 | 2019-12-17 | 上海龙猛机械有限公司 | Shock attenuation back pressure valve |
| CN110578806B (en) * | 2019-09-30 | 2024-04-05 | 上海龙猛机械有限公司 | Damping back pressure valve |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C56 | Change in the name or address of the patentee | ||
| CP02 | Change in the address of a patent holder |
Address after: 518057 Burlington, the Canadian province of Ontario Cook Street No. 1050 Patentee after: Primary Fluid Systems Inc. Address before: 518057 Ontario city Bokuke Burlington Street No. 1050 Patentee before: Primary Fluid Systems Inc. |
|
| CX01 | Expiry of patent term |
Granted publication date: 20100908 |
|
| CX01 | Expiry of patent term |