CN104405920A - Leakage-proof membrane valve - Google Patents
Leakage-proof membrane valve Download PDFInfo
- Publication number
- CN104405920A CN104405920A CN201410483071.1A CN201410483071A CN104405920A CN 104405920 A CN104405920 A CN 104405920A CN 201410483071 A CN201410483071 A CN 201410483071A CN 104405920 A CN104405920 A CN 104405920A
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- Prior art keywords
- valve
- fixed
- contiguous block
- bump
- barrier film
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Classifications
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16K—VALVES; TAPS; COCKS; ACTUATING-FLOATS; DEVICES FOR VENTING OR AERATING
- F16K7/00—Diaphragm valves or cut-off apparatus, e.g. with a member deformed, but not moved bodily, to close the passage ; Pinch valves
- F16K7/12—Diaphragm valves or cut-off apparatus, e.g. with a member deformed, but not moved bodily, to close the passage ; Pinch valves with flat, dished, or bowl-shaped diaphragm
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- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Check Valves (AREA)
Abstract
The invention provides a leakage-proof membrane valve, and belongs to the field of valves. The membrane valve comprises a valve body, a valve seat, a handle, a valve bonnet, a lead screw and a membrane. The valve body comprises a water inlet channel and a water outlet channel; each of the inner wall of the water inlet channel, the inner wall of the water outlet channel and the inner wall of the valve seat is provided with a rubber layer; the membrane is fixed between the valve body and the valve bonnet; the inner end of the lead screw is connected to the membrane; the outer end of the lead screw is connected to the handle; the membrane comprises a fixed portion and a circular-arc opening and closing portion; a groove is formed in the center of the inner side of the opening and closing portion; a plurality of hollow protruding portions are arranged on the outer side of the opening and closing portion and are communicated with the groove; a connecting block is arranged in the groove; a plurality of protruding blocks are arranged at one end of the connecting block; the protruding blocks correspond to the protruding portions in a one-to-one manner, and the size of the protruding blocks is matched with that of the protruding portions; the other end of the connecting block is fixedly connected to the inner end of the lead screw; the connecting block is fixedly connected to the opening and closing portion; and a plurality of matched grooves are formed in the position, corresponding to the protruding portions, of the valve seat. The leakage-proof membrane valve is good in sealing performance and has the advantage of preventing fluid from leaking.
Description
Technical field
The invention belongs to valve field, relate to a kind of leakproof membrane valve.
Background technique
Membrane valve is a kind of block valve of special shape, comes across the twenties in 20th century.Its open-shut device is one piece of barrier film made with soft material, and body cavity and valve gap inner chamber and driver part are separated, therefore claims membrane valve.With the block valve (see valve) of elastic diaphragm as open-shut device and Sealing.The typical structure of membrane valve is valve body is ridge type, and ridge and barrier film form sealing pair.Barrier film periphery is fixed, and valve pocket is divided into not connected two-part by it.Barrier film is fluid passage below.The parts such as flap, valve rod, valve gap are all positioned at barrier film top, with fluid isolation, not by flow-induced corrosion, can prevent the contaminating impurity fluids such as iron rust again simultaneously.Membrane valve does not need stuffing box, there is not the sealing problem of valve rod.Usually serve as a contrast rubber or enamel in valve body, also have overall (as stainless steel and the engineering plastics etc.) that adopt corrosion resistant metal or nonmetallic material.Diaphragm material is generally rubber and fluoroplastic.The life-span of membrane valve depends on the fatigue resistance of barrier film.It is specially adapted to corrosive fluid and requires clean fluid, as acetic acid, chemical fibre raw material and boiler soft water etc.Its working pressure is generally not more than 0.6 MPa, and operating temperature is generally less than 100 DEG C, and inside nominal diameter is not more than 350 millimeters.
Known; membrane valve is directly combined closely by barrier film and valve seat to realize sealing; valve seat and barrier film are all adopt flexible material to make; realize sealing by extrusion-deformation, but in reality, both sealing surfaces are single plane; fluid often can be caused to leak; fluid in membrane valve is generally have corrosive fluid, can cause the generation of security incident after leakage, and the sealability of visible membrane valve is very important.
Summary of the invention
The object of the invention is for the above-mentioned problems in the prior art, provide a kind of leakproof membrane valve, this leakproof membrane valve good seal performance, anti-fluid is leaked, and solves existing membrane valve poor sealing performance, the problem that fluid easily leaks.
Object of the present invention realizes by following technical proposal: a kind of leakproof membrane valve, comprise valve body, valve seat, handle, bonnet, screw mandrel and the barrier film be made up of rubber material, described valve body comprises intake tunnel and exhalant canal, described intake tunnel, the inwall of exhalant canal has one deck rubber layer, it is valve seat between described intake tunnel and exhalant canal, described valve base inner wall is enclosed with rubber layer equally, described barrier film is fixed between described valve body and bonnet, described screw mandrel the inner is connected in described barrier film, described screw mandrel outer end is connected in described handle, described barrier film comprises fixing part and the keying portion in circular arc, it is characterized in that, center inside described keying portion has groove, it is hollow bump that the outside in described keying portion also has multiple inside, described bump communicates with described groove, in described groove, there is contiguous block, one end of described contiguous block has multiple projection, described projection and described bump one_to_one corresponding and size and described bump match, the other end of described contiguous block is fixed on the inner of described screw mandrel, described contiguous block is fixed on described keying portion, described valve seat has multiple matching slot with described bump corresponding section, when described each bump and described matching slot match, described membrane valve is sealing state.
Bump and barrier film are integral type structure, add once-through in man-hour, and because this valve transports various chemical liquid, most of liquid all has corrosivity, and valve inner rubber layer can hinder liquid directly and the contact internal walls of valve.This membrane valve drives the keying portion of barrier film to move up and down the opening and closing of control valve by screw mandrel, projection, the combination of bump and matching slot, form multiple sealing surface, change single sealing configuration, when screw mandrel drives keying portion to move downward, bump and the mutual drive fit of matching slot seal, when screw mandrel drives open-shut device to move upward, bump is away from matching formation path, the keying portion motion of barrier film is driven by additionally arranging contiguous block, without the need to barrier film and contiguous block are made of one formula structure, easy to process.
In above-mentioned a kind of leakproof membrane valve, the both sides of described contiguous block have the fixed strip extended to both sides, and described contiguous block is fixed on described keying portion by described fixed strip.
Article two, fixed strip is symmetrical set, and realizes the fixing of contiguous block, strengthen the stability of contiguous block by fixed strip.
In above-mentioned a kind of leakproof membrane valve, described fixed strip has tapped hole, described fixed strip is fixed by screws in described keying portion.
Fixed strip has tapped through hole, and the inner side surface corresponding part in keying portion has tapped hole, and screw fixes fixed strip by tapped hole.
In above-mentioned a kind of leakproof membrane valve, the fixing part of described barrier film is fixed by screws between described valve body and bonnet.
Because barrier film is flexible material, by the clearance seal between valve body and bonnet in the process of extruding.
In above-mentioned a kind of leakproof membrane valve, the size of described contiguous block is greater than the size of described groove and described fixed strip is positioned on the inner side surface in described keying portion.
Contiguous block is placed in a groove, is fixed by fixed strip, easy for installation, the inner side surface in keying portion is directly fixed.
Compared with prior art, this leakproof membrane valve has the following advantages:
1, this leakproof membrane valve is by bump, and projection and matching slot directly coordinate, and changing from original single sealing surface is repeatedly sealing surface, considerably increases the sealability of membrane valve, fluid can not be leaked.
2, the contiguous block both sides of this leakproof membrane valve have fixed strip, and fixed strip is symmetrical arranged, and is fixedly connected with block by fixed strip, easy for installation, and contiguous block is in stable condition.
3, the size of this leakproof membrane valve contiguous block is greater than the size of groove and fixed strip is positioned on the inner side surface in keying portion.Contiguous block is placed in a groove, is fixed by fixed strip, easy for installation, the inner side surface in keying portion is directly fixed.
4, the fixed strip of this leakproof membrane valve is fixed by screws in keying portion, and it is all convenient to mount and dismount.
Accompanying drawing explanation
Fig. 1 is this leakproof membrane valve overall structure schematic diagram.
Fig. 2 is the structural representation of this leakproof membrane valve contiguous block.
Fig. 3 is the structural representation of the barrier film of this leakproof membrane valve.
In figure, 1, valve body; 1a, intake tunnel; 1b, exhalant canal; 2, valve seat; 2a, matching slot; 3, handle; 4, screw mandrel; 5, barrier film; 5a, fixing part; 5b, keying portion; 5b1, groove; 5b2, bump; 6, rubber layer; 7, contiguous block; 7a, projection; 7b, fixed strip.
Embodiment
As shown in Figure 1 to Figure 3, this leakproof membrane valve, comprise valve body 1, valve seat 2, handle 3, bonnet, screw mandrel 4 and the barrier film 5 be made up of rubber material, valve body 1 comprises intake tunnel 1a and exhalant canal 1b, intake tunnel 1a, the inwall of exhalant canal 1b has one deck rubber layer 6, it is valve seat 2 between intake tunnel 1a and exhalant canal 1b, valve seat 2 inwall is enclosed with rubber layer 6 equally, barrier film 5 is fixed between valve body 1 and bonnet, screw mandrel 4 the inner is connected in barrier film 5, screw mandrel 4 outer end is connected in handle 3, barrier film 5 comprises fixing part 5a and the keying portion 5b in circular arc, it is characterized in that, center inside keying portion 5b has groove 5b1, it is hollow bump 5b2 that the outside of keying portion 5b also has multiple inside, bump 5b2 communicates with groove 5b1, there is in groove 5b1 contiguous block 7, one end of contiguous block 7 has multiple projection 7a, projection 7a and bump 5b2 one_to_one corresponding and size and bump 5b2 match, the other end of contiguous block 7 is fixed on the inner of screw mandrel 4, contiguous block 7 is fixed on keying portion 5b, valve seat 2 has multiple matching slot 2a with bump 5b2 corresponding section, when each bump 5b2 and matching slot 2a matches, membrane valve is sealing state.
Bump 5b2 and barrier film 5 are integral type structure, add once-through in man-hour, and because this valve transports various chemical liquid, most of liquid all has corrosivity, and valve inner rubber layer 6 can hinder liquid directly and the contact internal walls of valve.This membrane valve drives the keying portion 5b of barrier film 5 to move up and down the opening and closing of control valve by screw mandrel 4, projection 7a, the combination of bump 5b2 and matching slot 2a, form multiple sealing surface, change single sealing configuration, when screw mandrel 4 drives keying portion 5b to move downward, bump 5b2 and the mutual drive fit of matching slot 2a seal, when screw mandrel 4 drives open-shut device to move upward, bump 5b2 is away from matching formation path, the keying portion 5b of barrier film 5 is driven to move by additionally arranging contiguous block 7, without the need to barrier film 5 and contiguous block 7 are made of one formula structure, easy to process.
As shown in Figure 2, the both sides of contiguous block 7 have the fixed strip 7b extended to both sides, and contiguous block 7 is fixed on keying portion 5b by fixed strip 7b.Article two, fixed strip 7b is symmetrical set, and realizes the fixing of contiguous block 7, strengthen the stability of contiguous block 7 by fixed strip 7b.
Fixed strip 7b has tapped hole, and fixed strip 7b is fixed by screws in keying portion 5b.Fixed strip 7b has tapped through hole, and the inner side surface corresponding part of keying portion 5b has tapped hole, and screw fixes fixed strip 7b by tapped hole.
As shown in Figure 1, the fixing part 5a of barrier film 5 is fixed by screws between valve body 1 and bonnet.Because barrier film 5 is flexible materials, by the clearance seal between valve body 1 and bonnet in the process of extruding.
The size of contiguous block 7 is greater than the size of groove 5b1 and fixed strip 7b is positioned on the inner side surface of keying portion 5b.Contiguous block 7 is placed in groove 5b1, is fixed by fixed strip 7b, easy for installation, the inner side surface of keying portion 5b is directly fixed.
In this case, contiguous block 7 and groove 5b1 are all square, and in actual production, according to actual needs, can be processed into different shapes, bump 5b2, and projection 7a and matching slot 2a is all in like manner, and simple change shape ought in the protection domain of this case.
This membrane valve changes traditional diaphragm valve structure, by groove 5b1, bump 5b2, the combining structure of contiguous block 7 and matching slot 2a, realizes multifaceted sealing, even if there is segment fluid flow to enter in matching slot 2a, reduced pressure by the matching slot 2a convection cell of multiple kink shape, make fluid completely by matching slot 2a, thus the effect of sealing cannot be reached, reasonable in design, sealability is strong.
Specific embodiment described herein is only to the explanation for example of the present invention's spirit.Those skilled in the art can make various amendment or supplement or adopt similar mode to substitute to described specific embodiment, but can't depart from spirit of the present invention or surmount the scope that appended claims defines.
Claims (5)
1. a leakproof membrane valve, comprise valve body, valve seat, handle, bonnet, screw mandrel and the barrier film be made up of rubber material, described valve body comprises intake tunnel and exhalant canal, described intake tunnel, the inwall of exhalant canal has one deck rubber layer, it is valve seat between described intake tunnel and exhalant canal, described valve base inner wall is enclosed with rubber layer equally, described barrier film is fixed between described valve body and bonnet, described screw mandrel the inner is connected in described barrier film, described screw mandrel outer end is connected in described handle, described barrier film comprises fixing part and the keying portion in circular arc, it is characterized in that, center inside described keying portion has groove, it is hollow bump that the outside in described keying portion also has multiple inside, described bump communicates with described groove, in described groove, there is contiguous block, one end of described contiguous block has multiple projection, described projection and described bump one_to_one corresponding and size and described bump match, the other end of described contiguous block is fixed on the inner of described screw mandrel, described contiguous block is fixed on described keying portion, described valve seat has multiple matching slot with described bump corresponding section, when described each bump and described matching slot match, described membrane valve is sealing state.
2. a kind of leakproof membrane valve according to claim 1, is characterized in that, the both sides of described contiguous block have the fixed strip extended to both sides, and described contiguous block is fixed on described keying portion by described fixed strip.
3. a kind of leakproof membrane valve according to claim 2, is characterized in that described fixed strip has tapped hole, and described fixed strip is fixed by screws in described keying portion.
4. a kind of leakproof membrane valve according to claim 1 or 2 or 3, is characterized in that, the fixing part of described barrier film is fixed by screws between described valve body and bonnet.
5. a kind of leakproof membrane valve according to Claims 2 or 3, is characterized in that, the size of described contiguous block is greater than the size of described groove and described fixed strip is positioned on the inner side surface in described keying portion.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410483071.1A CN104405920A (en) | 2014-09-19 | 2014-09-19 | Leakage-proof membrane valve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410483071.1A CN104405920A (en) | 2014-09-19 | 2014-09-19 | Leakage-proof membrane valve |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN104405920A true CN104405920A (en) | 2015-03-11 |
Family
ID=52643571
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201410483071.1A Pending CN104405920A (en) | 2014-09-19 | 2014-09-19 | Leakage-proof membrane valve |
Country Status (1)
| Country | Link |
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| CN (1) | CN104405920A (en) |
Citations (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP0013618A1 (en) * | 1979-01-09 | 1980-07-23 | Saunders Valve Company Limited | Diaphragm valves |
| CN2466456Y (en) * | 2001-02-27 | 2001-12-19 | 朱孝有 | Diaphragm valve |
| CN101548122A (en) * | 2006-10-20 | 2009-09-30 | 泰科消防产品有限责任公司 | Fluid control valve system an methods |
| CN202252101U (en) * | 2011-09-30 | 2012-05-30 | 山东泰丰阀业有限公司 | Fluorine lining diaphragm valve |
| CN203082260U (en) * | 2013-01-14 | 2013-07-24 | 浙江经纬集团环保工程有限公司 | Novel membrane valve |
| CN203115113U (en) * | 2012-12-21 | 2013-08-07 | 尹波 | Novel sealing stop valve |
| CN203264132U (en) * | 2013-05-08 | 2013-11-06 | 浙江港龙消防机械有限公司 | Raining alarm valve |
| CN103671985A (en) * | 2013-12-10 | 2014-03-26 | 重庆巨康建材有限公司 | Rotary control type stop valve |
| CN203797031U (en) * | 2014-03-27 | 2014-08-27 | 崔永高 | Straight-through fluorine-lined diaphragm valve |
-
2014
- 2014-09-19 CN CN201410483071.1A patent/CN104405920A/en active Pending
Patent Citations (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP0013618A1 (en) * | 1979-01-09 | 1980-07-23 | Saunders Valve Company Limited | Diaphragm valves |
| CN2466456Y (en) * | 2001-02-27 | 2001-12-19 | 朱孝有 | Diaphragm valve |
| CN101548122A (en) * | 2006-10-20 | 2009-09-30 | 泰科消防产品有限责任公司 | Fluid control valve system an methods |
| CN202252101U (en) * | 2011-09-30 | 2012-05-30 | 山东泰丰阀业有限公司 | Fluorine lining diaphragm valve |
| CN203115113U (en) * | 2012-12-21 | 2013-08-07 | 尹波 | Novel sealing stop valve |
| CN203082260U (en) * | 2013-01-14 | 2013-07-24 | 浙江经纬集团环保工程有限公司 | Novel membrane valve |
| CN203264132U (en) * | 2013-05-08 | 2013-11-06 | 浙江港龙消防机械有限公司 | Raining alarm valve |
| CN103671985A (en) * | 2013-12-10 | 2014-03-26 | 重庆巨康建材有限公司 | Rotary control type stop valve |
| CN203797031U (en) * | 2014-03-27 | 2014-08-27 | 崔永高 | Straight-through fluorine-lined diaphragm valve |
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| PB01 | Publication | ||
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| WD01 | Invention patent application deemed withdrawn after publication | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20150311 |