CN208951344U - A kind of diaphragm valve - Google Patents

A kind of diaphragm valve Download PDF

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Publication number
CN208951344U
CN208951344U CN201820432567.XU CN201820432567U CN208951344U CN 208951344 U CN208951344 U CN 208951344U CN 201820432567 U CN201820432567 U CN 201820432567U CN 208951344 U CN208951344 U CN 208951344U
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China
Prior art keywords
diaphragm
valve
flange
valve seat
shell
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CN201820432567.XU
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Chinese (zh)
Inventor
卫洋
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Suzhou Barnes Environmental Protection Technology Co Ltd
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Suzhou Barnes Environmental Protection Technology Co Ltd
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Priority to CN201820432567.XU priority Critical patent/CN208951344U/en
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Abstract

The utility model discloses a kind of diaphragm valves, it includes shell, valve seat, diaphragm, control device;Valve seat top is equipped with screw thread, and the side on valve seat top is equipped with positioning device;Shell is mounted on valve seat;Fixed be provide with of diaphragm is set inside housings;Control device includes valve rod, briquetting;Valve rod is mounted on the fixed cover of diaphragm, and briquetting is fixed on the end of valve rod;Diaphragm setting is mounted on the end of valve rod through fixing bolt between the fixed cover of diaphragm and valve seat;Diaphragm is additionally provided with sealing flange in bowl-shape on diaphragm;The second flange on the diaphragm of the utility model is in contact with the position among two pipe connection portions in ridge groove first when diaphragm valve is closed, and by the second flange extrusion to deforming when band valve rod further moves downward, sealing effect is preferable;Using pneumatic control, control device is simple, reduces use cost, normal use, realization automation control can realize accurate control in the case where environment is relatively severe.

Description

A kind of diaphragm valve
Technical field
The utility model relates to valve technology fields, and in particular to a kind of diaphragm valve.
Background technique
Valve be controlling fluid flow, pressure and the control unit of flow direction, have cut-off, adjusting, water conservancy diversion, prevent it is non-return The functions such as stream, pressure stabilizing.Currently, valve mainly includes that shell, control device and end cap, wherein shell and end cap generally use screw Etc. connecting components connection, this connection type
Valve installation accuracy is improved though allowing, increases the installation difficulty of valve, improves the production cost of valve; Diaphragm valve generally comprises an interconnecting piece and a diaphragm pressure head, and the interconnecting piece is barrel shaped structure, and lower end compresses described It diaphragm and is fixedly connected with the pedestal, the top of the diaphragm is provided centrally with a limit connecting shaft, described Diaphragm pressure head be arranged in the interconnecting piece, the limit connecting shaft is across the diaphragm pressure head and the connection The top in portion is connected with the valve rod, is provided with screw thread on the outer surface of the interconnecting piece.
But this kind of valve mechanism is complex, manufacturing cost is higher, is difficult to match on automated production equipment line, separately There are also the presence of intelligent control valve outside, but structure is complicated for these intelligent control valves, and operation quietly, does not have a single function, institute Also to have significant limitation.
Summary of the invention
Purpose of the utility model is to solve existing diaphragm valve installation difficulty big, production cost original text, structure are more Complexity has the problem of certain limitation, provides that a kind of structure is simple, and manufacturing cost is low, and flow is big, stability it is good it is a kind of every Film valve.
A kind of diaphragm valve, it includes shell 1, valve seat 2, diaphragm 3, control device 4;2 top of valve seat is equipped with spiral shell The side of line, 2 top of valve seat is equipped with positioning device 21;The shell 1 is mounted on valve seat 2;The fixed cover 14 of diaphragm is arranged in shell Inside body 1;The control device 4 includes valve rod 41, briquetting 42;Valve rod 41 is mounted on the fixed cover 14 of diaphragm, the pressure Block 42 is fixed on the end of valve rod 41;The setting of diaphragm 3 is between the fixed cover 14 of diaphragm and valve seat 2, through fixing bolt 33 It is mounted on the end of valve rod 41;The diaphragm 3 is additionally provided with sealing flange on diaphragm 3 in bowl-shape;
The positioning device 21 includes groove A211, buckle 212;The buckle 212 is L-shaped, bayonet Lower part is located at the bottom of groove A211, buckles 212 top in a rectangular parallelepiped shape, buckles and sets between 212 upper inners and groove 212 Have gap, buckle 212 upper outside be located at valve seat 2 screw thread outside;
Fixed bayonet 13 is equipped with inside the shell 1, fixed bayonet 13 is matched with the shape of buckle 212;
Sealing flange on the diaphragm 3 includes: the first flange 31, the second flange 32, and first flange 31 is set It sets at the rim of a bowl of diaphragm 3, annularly;The pit inner surface of diaphragm 3 is arranged in second flange 32, linearly, and It is located at same midline with positioning fixed part 31;
The median perpendicular of the second flange 32 and two pipe connection portions 21 is arranged the diaphragm 3 during installation;
The diaphragm 3 is made by rubber material;Its surface is equipped with wear-resistant coating;
The fixed cover 14 of the valve rod 41 and diaphragm uses spline fitted;
The control device further includes spring, and the spring is arranged between piston 42 and shell 1.
The utility model provides a kind of diaphragm valve, it includes shell, valve seat, diaphragm, control device;Valve seat top is set There is screw thread, the side on valve seat top is equipped with positioning device;Shell is mounted on valve seat;Fixed be provide with of diaphragm is set inside housings;Control Device processed includes valve rod, briquetting;Valve rod is mounted on the fixed cover of diaphragm, and briquetting is fixed on the end of valve rod;Diaphragm setting every Between the fixed cover of film and valve seat, the end of valve rod is mounted on through fixing bolt;It is convex to be additionally provided with sealing in bowl-shape for diaphragm on diaphragm Edge.
When installation, diaphragm 3 with the first flange 31, the second flange 32 one side towards valve seat 2, and the second flange 32 and two The median perpendicular of pipe connection portion 21 is arranged;Valve rod 41 is mounted in the unthreaded hole 142 of the fixed cover 14 of diaphragm, the setting of piston 42 every The top of the fixed cover 14 of film, briquetting 42 are mounted on 41 lower end of valve rod, and external splines 421 and the splined hole 141 of briquetting 42 match, and are in Dome shape side is downward;Diaphragm 3 is mounted on 42 lower part of briquetting;The top of diaphragm 3 is arranged in the fixed cover 14 of diaphragm;Shell 1 is installed On pedestal 2, shell 1 compresses the fixed cover 14 of diaphragm through fixed bayonet 13;The fixed cover 14 of diaphragm compresses diaphragms 3, and then by pipeline Two cavitys of interconnecting piece 21 disconnect;Shell 1 is mounted on pedestal 2, and shell 1 screws 2 top positioning device 21 of rear valve base and shell The groove B11 of 1 oral area of body is corresponding, and the buckle 212 of positioning device 21 is matched with groove B11;Shell 1 and valve seat 2 are mutually solid Fixed connection;Positioning device 21 positions shell 1 and the circumferencial direction of valve seat 2.
In use, the pipe connection portion 21 of the utility model is connected in pipe-line, pressure control interface 12 is connected It is connected in pressure control loop, by the up and down motion of pressure control valve rod 41, valve rod 41 drives briquetting 42 and about 3 diaphragm to transport It is dynamic, control switching on and off between two pipe connection portions 21.
The second flange 32 on the diaphragm 3 of the utility model is when diaphragm valve is closed, first and in two pipe connection portions 21 Between position be in contact in ridge groove, by the second flange extrusion to deforming when band valve rod 41 further moves downward, sealing Effect is preferable.
The utility model uses pneumatic control, and control device is simple, does not need complicated electric circuit it is achieved that subtracting Lacked use cost, can in the case where environment is relatively severe normal use, realize automation control.
The utility model uses the position for controlling diaphragm 3 that the method pneumatically adjusted can be more accurate, and then more smart The flow of gas or liquid that true control valve passes through realizes accurate control.
The utility model is equipped with spring in piston 42 and shell 1, which can make this valve not work in pneumatic system Or keep valve to be in close state when being out of order, it avoids and the problem of accident late gate cannot be closed is occurring.
Detailed description of the invention
Fig. 1 is a kind of diaphragm valve top view of the utility model;
Fig. 2 is a kind of diaphragm valve A-A cross-sectional view of the utility model;
Fig. 3 is a kind of diaphragm valve B-B cross-sectional view of the utility model;
Fig. 4 is a kind of diaphragm valve member perspective view of the utility model.
Specific embodiment
A kind of embodiment 1: diaphragm valve
Referring to Figure 1-4, a kind of diaphragm valve, including shell 1, valve seat 2, diaphragm 3, control device 4;
The left and right sides of the valve seat 2 is equipped with pipe connection portion 21, and the position among two pipe connection portion 21 is in ridge Shape;
2 top of valve seat is equipped with screw thread, and the side on 2 top of valve seat is equipped with positioning device 21;
The positioning device 21 includes groove A211, buckle 212;
The buckle 212 is L-shaped, and the lower part of bayonet is located at the bottom of groove A211, and the top for buckling 212 is in cuboid Shape buckles and is equipped with gap between 212 upper inners and groove 212, buckle 212 upper outside be located at valve seat 2 screw thread outside Side;
The shell 1 is in tubbiness, and 1 oral area of shell is equipped with groove B11, and groove B11 matches with groove A211;
The outside of the shell 1 is equipped with pressure control interface 12;
Fixed bayonet 13 is equipped with inside the shell 1, fixed bayonet 13 is matched with the shape of buckle 212;
The fixed cover 14 of diaphragm is additionally provided with inside the shell 1;
Fixed 14 middle part of cover of the diaphragm is equipped with splined hole 141, unthreaded hole 142;
The splined hole 141 is arranged in 142 lower part of unthreaded hole;
The diaphragm 14 tops of fixed cover are contacted with fixed bayonet 13;
The control device 4 includes valve rod 41, briquetting 42;
The valve rod 41 is cylindrical, and piston 42 is equipped in the middle part of valve rod 41, and 41 lower part of valve rod is equipped with threaded hole 411;
The briquetting 42 is hemispherical, and shape is identical as two pipe connection portions, 21 shape;
The external splines 421 to match with splined hole 141 is equipped with around the briquetting 42;
The briquetting 42 is fixed on the end of valve rod 41;
The setting of diaphragm 3 is between the fixed cover 14 of diaphragm and valve seat 2;
It is equipped with the pit in bowl structure in the middle part of the diaphragm 3, is made by rubber material;
The diaphragm 3 is equipped with positioning fixed part 31, and the two sides of diaphragm are arranged in positioning fixed part 31;
The first flange 31, the second flange 32 are additionally provided on the diaphragm 3, diaphragm is arranged in first flange 31 At the rim of a bowl, annularly;
The pit inner surface of diaphragm 3 is arranged in second flange 32, linearly, and is located at positioning fixed part 31 Same midline;
The pit inner surface of the diaphragm 3 is equipped with fixing bolt 33, and fixing bolt 33 is vertically arranged with diaphragm 3;
The fixing bolt 33 and diaphragm 3 is molded using integral molding;
The diaphragm 3 is mounted on the end of valve rod 41 through fixing bolt 33, with threaded hole 411 to cooperation;
When installation, diaphragm 3 with the first flange 31, the second flange 32 one side towards valve seat 2, and the second flange 32 and two The median perpendicular of pipe connection portion 21 is arranged;Valve rod 41 is mounted in the unthreaded hole 142 of the fixed cover 14 of diaphragm, the setting of piston 42 every The top of the fixed cover 14 of film, briquetting 42 are mounted on 41 lower end of valve rod, and external splines 421 and the splined hole 141 of briquetting 42 match, and are in Dome shape side is downward;Diaphragm 3 is mounted on 42 lower part of briquetting;The top of diaphragm 3 is arranged in the fixed cover 14 of diaphragm;Shell 1 is installed On pedestal 2, shell 1 compresses the fixed cover 14 of diaphragm through fixed bayonet 13;The fixed cover 14 of diaphragm compresses diaphragms 3, and then by pipeline Two cavitys of interconnecting piece 21 disconnect;Shell 1 is mounted on pedestal 2, and shell 1 screws 2 top positioning device 21 of rear valve base and shell The groove B11 of 1 oral area of body is corresponding, and the buckle 212 of positioning device 21 is matched with groove B11;Shell 1 and valve seat 2 are mutually solid Fixed connection;Positioning device 21 positions shell 1 and the circumferencial direction of valve seat 2.
In use, the pipe connection portion 21 of the utility model is connected in pipe-line, pressure control interface 12 is connected It is connected in pressure control loop, by the up and down motion of pressure control valve rod 41, valve rod 41 drives briquetting 42 and about 3 diaphragm to transport It is dynamic, control switching on and off between two pipe connection portions 21.
The second flange 32 on diaphragm 3 is in first room with the position among two pipe connection portion 21 when diaphragm valve is closed Carinate groove is in contact, and by the second flange extrusion to deforming when band valve rod 41 further moves downward, sealing effect is preferable.
A kind of embodiment 2: diaphragm valve
Referring to Figure 1-4, a kind of diaphragm valve, including shell 1, valve seat 2, diaphragm 3, control device 4;
The left and right sides of the valve seat 2 is equipped with pipe connection portion 21, and the position among two pipe connection portion 21 is in ridge Shape;
2 top of valve seat is equipped with screw thread, and the side on 2 top of valve seat is equipped with positioning device 21;
The positioning device 21 includes groove A211, buckle 212;
The buckle 212 is L-shaped, and the lower part of bayonet is located at the bottom of groove A211, and the top for buckling 212 is in cuboid Shape buckles and is equipped with gap between 212 upper inners and groove 212, buckle 212 upper outside be located at valve seat 2 screw thread outside Side;
The shell 1 is in tubbiness, and 1 oral area of shell is equipped with groove B11, and groove B11 matches with groove A211;
The outside of the shell 1 is equipped with pressure control interface 12;
Fixed bayonet 13 is equipped with inside the shell 1,
The fixed cover 14 of diaphragm is additionally provided with inside the shell 1;
Fixed 14 middle part of cover of the diaphragm is equipped with splined hole 141, unthreaded hole 142;
The splined hole 141 is arranged in 142 lower part of unthreaded hole;
The diaphragm 14 tops of fixed cover are contacted with fixed bayonet 13;
The control device 4 includes valve rod 41, briquetting 42;
The valve rod 41 is cylindrical, and piston 42 is equipped in the middle part of valve rod 41, and 41 lower part of valve rod is equipped with threaded hole 411;
The briquetting 42 is hemispherical, and shape is identical as two pipe connection portions, 21 shape;
The external splines 421 to match with splined hole 141 is equipped with around the briquetting 42;
The briquetting 42 is fixed on the end of valve rod 41;
The control device further includes spring, and the spring is arranged between piston 42 and shell 1;
The setting of diaphragm 3 is between the fixed cover 14 of diaphragm and valve seat 2;
It is equipped with the pit in bowl structure in the middle part of the diaphragm 3, is made by rubber material;
The diaphragm 3 is equipped with positioning fixed part 31, and the two sides of diaphragm are arranged in positioning fixed part 31;
The first flange 31, the second flange 32 are additionally provided on the diaphragm 3, diaphragm is arranged in first flange 31 At the rim of a bowl, annularly;
The pit inner surface of diaphragm 3 is arranged in second flange 32, linearly, and is located at positioning fixed part 31 Same midline;
The pit inner surface of the diaphragm 3 is equipped with fixing bolt 33, and fixing bolt 33 is vertically arranged with diaphragm 3;
The fixing bolt 33 and diaphragm 3 is molded using integral molding;
The diaphragm 3 is mounted on the end of valve rod 41 through fixing bolt 33, with threaded hole 411 to cooperation;
When installation, diaphragm 3 with the first flange 31, the second flange 32 one side towards valve seat 2, and the second flange 32 and two The median perpendicular of pipe connection portion 21 is arranged;Valve rod 41 is mounted in the unthreaded hole 142 of the fixed cover 14 of diaphragm, the setting of piston 42 every The top of the fixed cover 14 of film, briquetting 42 are mounted on 41 lower end of valve rod, and external splines 421 and the splined hole 141 of briquetting 42 match, and are in Dome shape side is downward;Diaphragm 3 is mounted on 42 lower part of briquetting;The top of diaphragm 3 is arranged in the fixed cover 14 of diaphragm;Shell 1 is installed On pedestal 2, shell 1 compresses the fixed cover 14 of diaphragm through fixed bayonet 13;The fixed cover 14 of diaphragm compresses diaphragms 3, and then by pipeline Two cavitys of interconnecting piece 21 disconnect;Shell 1 is mounted on pedestal 2, and shell 1 screws 2 top positioning device 21 of rear valve base and shell The groove B11 of 1 oral area of body is corresponding, and the buckle 212 of positioning device 21 is matched with groove B11;Shell 1 and valve seat 2 are mutually solid Fixed connection;Positioning device 21 positions shell 1 and the circumferencial direction of valve seat 2.
In use, the pipe connection portion 21 of the utility model is connected in pipe-line, pressure control interface 12 is connected It is connected in pressure control loop, by the up and down motion of pressure control valve rod 41, valve rod 41 drives briquetting 42 and about 3 diaphragm to transport It is dynamic, control switching on and off between two pipe connection portions 21.
The second flange 32 on the diaphragm 3 of the utility model is when diaphragm valve is closed, first and in two pipe connection portions 21 Between position be in contact in ridge groove, by the second flange extrusion to deforming when band valve rod 41 further moves downward, sealing Effect is preferable.
The utility model uses pneumatic control, and control device is simple, does not need complicated electric circuit it is achieved that subtracting Lacked use cost, can in the case where environment is relatively severe normal use, realize automation control.
The utility model uses the position for controlling diaphragm 3 that the method pneumatically adjusted can be more accurate, and then more smart The flow of gas or liquid that true control valve passes through realizes accurate control.
The utility model is equipped with spring in piston 42 and shell 1, which can make this valve not work in pneumatic system Or keep valve to be in close state when being out of order, it avoids and the problem of accident late gate cannot be closed is occurring.

Claims (8)

1. a kind of diaphragm valve, it is characterised in that: it includes shell, valve seat, diaphragm, control device;The valve seat top is set There is screw thread, the side on valve seat top is equipped with positioning device;The shell is mounted on valve seat;Fixed be provide with of diaphragm is set in shell Portion;The control device includes valve rod, briquetting;Valve rod is mounted on the fixed cover of diaphragm, and the briquetting is fixed on valve rod End;The diaphragm setting is mounted on the end of valve rod through fixing bolt between the fixed cover of diaphragm and valve seat;It is described every Film is additionally provided with sealing flange in bowl-shape on diaphragm.
2. a kind of diaphragm valve according to claim 1, it is characterised in that: the positioning device includes groove A, it buckles;The buckle is L-shaped, and the lower part of bayonet is located at the bottom of groove A, the top of buckle in a rectangular parallelepiped shape, on buckle Gap is equipped on the inside of portion between groove, the upper outside of buckle is located at the outside of the screw thread of valve seat.
3. a kind of diaphragm valve according to claim 2, it is characterised in that: the enclosure interior is equipped with fixed bayonet, Fixed bayonet is matched with the shape of buckle.
4. a kind of diaphragm valve according to claim 1 or 3, it is characterised in that: the sealing flange packet on the diaphragm Include: the first flange, the second flange, first flange are arranged at the rim of a bowl of diaphragm, annularly;Second flange is set The pit inner surface in diaphragm is set, linearly, and with positioning fixed position in same midline.
5. a kind of diaphragm valve according to claim 4, it is characterised in that: the diaphragm during installation the second flange with The median perpendicular of two pipe connection portions is arranged.
6. a kind of diaphragm valve according to claim 5, it is characterised in that: the diaphragm by rubber material make and At;Its surface is equipped with wear-resistant coating.
7. a kind of diaphragm valve according to claim 6, it is characterised in that: the fixed cover of the valve rod and diaphragm is using flower Key cooperation.
8. a kind of diaphragm valve according to claim 7, it is characterised in that: the control device further includes spring, institute The spring stated is arranged between piston and shell.
CN201820432567.XU 2018-03-29 2018-03-29 A kind of diaphragm valve Active CN208951344U (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201820432567.XU CN208951344U (en) 2018-03-29 2018-03-29 A kind of diaphragm valve

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN201820432567.XU CN208951344U (en) 2018-03-29 2018-03-29 A kind of diaphragm valve

Publications (1)

Publication Number Publication Date
CN208951344U true CN208951344U (en) 2019-06-07

Family

ID=66729553

Family Applications (1)

Application Number Title Priority Date Filing Date
CN201820432567.XU Active CN208951344U (en) 2018-03-29 2018-03-29 A kind of diaphragm valve

Country Status (1)

Country Link
CN (1) CN208951344U (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN108662191A (en) * 2017-03-30 2018-10-16 苏州巴恩斯通环保科技有限公司 A kind of diaphragm valve

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN108662191A (en) * 2017-03-30 2018-10-16 苏州巴恩斯通环保科技有限公司 A kind of diaphragm valve

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