CN211693557U - Flexible contact type pneumatic control butterfly valve - Google Patents
Flexible contact type pneumatic control butterfly valve Download PDFInfo
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- CN211693557U CN211693557U CN201922131933.5U CN201922131933U CN211693557U CN 211693557 U CN211693557 U CN 211693557U CN 201922131933 U CN201922131933 U CN 201922131933U CN 211693557 U CN211693557 U CN 211693557U
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Abstract
The utility model provides a flexible contact gas accuse butterfly valve, include casing O type circle in proper order, the dust ring, pivot O type circle, the support ring, go up the casing, the pivot, the blade, the casing bolt, casing locking washer, casing lock nut, the rectangle circle, lower casing, and a support, the shaft coupling, valve rod seal Y type circle, support ring on the valve rod, the valve body, the valve rod, support ring in the valve rod, the disk seat, the butterfly plate, the taper pin, the gasket, valve rod lower support ring, casing and support lock bolt, support and valve body lock nut, support locking washer, support and valve body lock bolt, first air inlet, first air-operated cavity, adjusting screw seals O type circle, fastening nut, second air-operated cavity, reference column and second air inlet are constituteed.
Description
Technical Field
The utility model relates to a valve field, concretely relates to flexible contact gas accuse butterfly valve.
Background
In the present generation, the equipment manufacturing industry is the core part of the current Chinese manufacturing industry, bears the major roles of providing a working master machine for each department of national economy and driving the development of related industries, can be said to be the heart of the industry and the life line of the national economy, is an important foundation for supporting the comprehensive national strength of the country, the valve industry is an important link of the equipment manufacturing industry, plays a very important role, the development level of the valve industry is an important embodiment of the national comprehensive manufacturing industry, and the national important equipment manufacturing is a strategic industry of the national economic safety and the national defense safety. At present, China is a large manufacturing country of mechanical equipment, and several large tap enterprises are also started in international markets for a day, but behind the wind and light, the China valve industry has dull pain which troubles for many years, and the valve with long service life and reliable sealing is always limited.
In the equipment manufacturing industry, the pneumatic control butterfly valve is the most widely used pneumatic control valve in modern automatic control, and is mainly used in working conditions with larger pipeline caliber and compact installation space. At present, the pneumatic control butterfly valve has various structures, but the most traditional structure is the most used structure style, namely, the symmetrical center line type single-rod pneumatic control butterfly valve, the structure is simple, the cost performance is high, but because the sealing structure of the butterfly plate and the valve seat adopts an interference sealing mode, the valve seat is quickly abraded and the endurance time is short, the requirement of long-time reliable sealing of modern automatic equipment is limited, and the further improvement of the modern equipment industry is not facilitated.
Disclosure of Invention
To the above problem, the utility model aims at providing an applicable operating mode under the long-time butterfly valve of using, have simple structure, sealed good reliable, maintain simple and convenient gas accuse butterfly valve.
The utility model discloses the technical scheme who takes as follows: a flexible contact type pneumatic control butterfly valve sequentially comprises a shell O-shaped ring, a dustproof ring, a rotating shaft O-shaped ring, a support ring, an upper shell, a rotating shaft, a blade, a shell bolt, a shell anti-loosening gasket, a shell locking nut, a rectangular ring, a lower shell, a support, a coupler, a valve rod sealing Y-shaped ring, an upper valve rod support ring, a valve body, a valve rod, a middle valve rod support ring, a valve seat, a butterfly plate, a taper pin, a gasket, a lower valve rod support ring, a shell and support locking bolt, a support and valve body locking nut, a support anti-loosening gasket, a support and valve body locking bolt, a first air inlet, a first pneumatic control cavity, an adjusting screw sealing O-shaped ring, a fastening nut, a second pneumatic control;
the upper shell and the lower shell form an upper fan-shaped air control part, and a shell O-shaped ring, a dustproof ring, a rotating shaft O-shaped ring, a support ring, a rectangular ring, blades, a rotating shaft, an upper shell, a shell bolt, a shell anti-loosening gasket and a shell locking nut are arranged in the upper fan-shaped air control part; the valve body and the butterfly plate form a lower execution part, and a valve rod, a valve rod middle support ring, a valve seat, a butterfly plate, a conical pin, a gasket and a valve rod lower support ring are arranged in the lower execution part; the pneumatic control part and the execution part are connected by a support, and a shell, a support locking bolt, a coupler, a support and valve body locking nut, a support anti-loosening gasket and a support and valve body locking bolt are arranged in the pneumatic control part and the execution part; the butterfly valve body and the valve rod form a connecting and sealing part, and a valve rod sealing Y-shaped ring, a valve rod upper supporting ring and a valve rod are arranged in the connecting and sealing part; the fan-shaped air cylinder is characterized in that a first air inlet and a second air inlet are respectively formed in two side walls of the fan-shaped air cylinder, the first air inlet and the second air inlet are respectively connected with an external air control device, the interior of the fan-shaped air cylinder is communicated with a front cavity and a rear cavity of the blade, a rectangular ring is arranged on the periphery of the blade, and an air cylinder cavity can be divided into a first air control cavity and a second air control cavity which are independent of each other.
Further: the valve seat and the butterfly plate form a sealing part for cutting off a medium, the sealing surface of the valve seat is a circular inclined surface, and the sealing inclined surface of the butterfly plate abuts against the sealing circular inclined surface of the valve seat;
further: the actuator part consisting of the upper shell and the lower shell is internally provided with blades, and the blades and the rotating shaft are integrally cast.
Further: the two ends of the valve body, namely the connector form connected with the pipeline, can be connected by flanges and butt clamps, and can meet the connection requirement of more than 90 percent of the current industrial occasions applying butterfly valves.
The utility model discloses, can realize that the butterfly valve uses for a long time, improve the durability and the reliability of line type single pole butterfly valve in the symmetry.
Drawings
Fig. 1 is a schematic structural view of a flexible contact pneumatic control butterfly valve of the present invention;
fig. 2 is a schematic view of a closed state of the flexible contact type pneumatic control butterfly valve of the present invention;
fig. 3 is a schematic view of an open state of the flexible contact pneumatic control butterfly valve of the present invention;
fig. 4 is a schematic view of the opening state of the fan-shaped actuator of the flexible contact type pneumatic control butterfly valve of the present invention;
fig. 5 is a schematic view of a closed state of a fan-shaped actuator of the flexible contact pneumatic control butterfly valve of the present invention;
fig. 6 is a schematic structural view of the flexible contact sealing between the butterfly plate and the valve seat of the flexible contact pneumatic control butterfly valve of the present invention;
in the figure: 1 shell O-shaped ring, 2 dustproof rings, 3 rotating shaft O-shaped rings, 4 supporting rings, 5 upper shells, 6 rotating shafts, 7 blades, 8 shell bolts, 9 shell check gaskets, 10 shell locknuts, 11 rectangular rings, 12 lower shells, 13 supports, 14 couplers, 15 valve rod sealing Y-shaped rings, 16 valve rod upper supporting rings, 17 valve bodies, 18 valve rods, 19 valve rod middle supporting rings, 20 valve seats, 21 butterfly plates, 22 conical pins, 23 gaskets, 24 valve rod lower supporting rings, 25 shell and support lockbolts, 26 support and valve body locknuts, 27 support check gaskets, 28 support and valve body lockbolts, 29 first air inlets, 30 first air control cavities, 31 adjusting screws, 32 adjusting screws, sealing O-shaped rings, 33 fastening nuts, 34 second air control cavities, 35 positioning columns and 36 second air inlets.
Detailed Description
The present invention will be described in further detail with reference to the following embodiments and accompanying drawings.
As shown in fig. 1-5, a flexible contact type pneumatic control butterfly valve sequentially comprises a housing O-ring, a dustproof ring, a rotating shaft O-ring, a support ring, an upper housing, a rotating shaft, a blade, a housing bolt, a housing check washer, a housing lock nut, a rectangular ring, a lower housing, a support, a coupler, a valve rod sealing Y-ring, a valve rod upper support ring, a valve body, a valve rod middle support ring, a valve seat, a butterfly plate, a taper pin, a gasket, a valve rod lower support ring, a housing and support lock bolt, a support and valve body lock nut, a support check washer, a support and valve body lock bolt, a first air inlet, a first pneumatic control cavity, an adjusting screw sealing O-ring, a fastening nut, a second pneumatic control cavity, a positioning column and a;
the upper shell and the lower shell form an upper fan-shaped air control part, and a shell O-shaped ring, a dustproof ring, a rotating shaft O-shaped ring, a support ring, a rectangular ring, blades, a rotating shaft, an upper shell, a shell bolt, a shell anti-loosening gasket and a shell locking nut are arranged in the upper fan-shaped air control part; the valve body and the butterfly plate form a lower execution part, a valve rod middle support ring, a valve seat, the butterfly plate, a conical pin, a gasket and a valve rod lower support ring are arranged in the lower execution part, the conical pin penetrates through the butterfly plate and the valve rod, the gasket is added at the other end of the lower execution part, the small-diameter end of the conical pin is turned and riveted, and the valve rod middle support ring, the valve seat, the butterfly; the pneumatic control part and the execution part are connected by a support, and a shell, a support locking bolt, a coupler, a support and valve body locking nut, a support anti-loosening gasket and a support and valve body locking bolt are arranged in the pneumatic control part and the execution part; the butterfly valve body and the valve rod form a connecting and sealing part, and a valve rod sealing Y-shaped ring, a valve rod upper supporting ring and a valve rod are arranged in the connecting and sealing part; the fan-shaped air cylinder is characterized in that a first air inlet and a second air inlet are respectively formed in two side walls of the fan-shaped air cylinder, the first air inlet and the second air inlet are respectively connected with an external air control device, the interior of the fan-shaped air cylinder is communicated with a front cavity and a rear cavity of the blade, a rectangular ring is arranged on the periphery of the blade, and an air cylinder cavity can be divided into a first air control cavity and a second air control cavity which are independent of each other.
As shown in fig. 6, the valve seat and the butterfly plate form a sealing part for cutting off a medium, the sealing surface of the valve seat is a circular inclined surface, the sealing inclined surface of the butterfly plate is tightly abutted on the sealing circular inclined surface of the valve seat, the valve seat and the butterfly plate belong to flexible contact type sealing, the valve plate and the valve seat do not generate friction and can be tightly contacted with each other for flexible sealing, the structure can reduce the abrasion of the valve seat to the minimum, realize zero leakage and realize long-time sealing reliability; the blade is arranged in the pneumatic control part consisting of the upper shell and the lower shell, the blade and the rotating shaft are integrally cast, the structure is simple and compact, the failure rate is low, and the sealing reliability is further improved; the two ends of the valve body, namely the connector form connected with the pipeline, can be in flange connection and butt clamp connection, and the flange connection and the butt clamp connection can be selected according to actual needs and are not limited.
In this embodiment, fig. 2 and 3 show the overall movement state of the valve, and fig. 4 and 5 show the movement state of the upper actuator. Compressed air is introduced from the first air inlet, the air pushes the blade to move towards the opposite side, the second air inlet discharges the air in the second air control cavity, the blade linkage coupler pulls the valve rod linkage butterfly plate to rotate away from the sealing surface of the valve seat, the valve is opened, a medium enters from one end of the valve body and reaches the other end through the valve body, namely, the valve moves from the state shown in the figure 2 to the state shown in the figure 3, and the actuator moves from the state shown in the figure 5 to the state shown in the figure 4 to complete the opening action of the valve; the compressed air introduced into the first air inlet is removed, the compressed air is introduced into the second air inlet, the air pushes the blade to move towards the opposite side, the air in the first air control cavity is discharged through the first air inlet, the blade linkage coupler pulls the valve rod linkage butterfly plate to rotate to the sealing surface direction of the valve seat and stop at the sealing surface of the valve seat, the valve is closed, the medium is blocked at one end of the valve body, namely the valve body moves from the graph 3 to the graph 2, and the actuator moves from the graph 4 to the graph 5, so that the closing action of the valve is completed.
The above description is only a preferred embodiment of the present invention, and is not intended to limit the present invention in other forms, and any person skilled in the art may use the above-mentioned technical contents to change or modify the equivalent embodiment into equivalent changes and apply to other fields, but any simple modification, equivalent change and modification made to the above embodiments according to the technical matters of the present invention will still fall within the protection scope of the technical solution of the present invention.
Claims (4)
1. The utility model provides a flexible contact gas accuse butterfly valve, include casing O type circle in proper order, the dust ring, pivot O type circle, the support ring, go up the casing, the apparatus further comprises a rotating shaft, the blade, the casing bolt, casing locking gasket, casing lock nut, the rectangle circle, lower casing, a support, the shaft coupling, valve rod seal Y type circle, the support ring on the valve rod, the valve body, the valve rod, support ring in the valve rod, the disk seat, the butterfly plate, the taper pin, the gasket, valve rod lower support ring, casing and support lock bolt, support and valve body lock nut, support locking gasket, support and valve body lock bolt, first air inlet, first air-operated cavity, adjusting screw seals O type circle, fastening nut, second air-operated cavity, the reference column, the second air inlet, its characterized in that:
the upper shell and the lower shell form an upper fan-shaped air control part, and a shell O-shaped ring, a dustproof ring, a rotating shaft O-shaped ring, a support ring, a rectangular ring, blades, a rotating shaft, an upper shell, a shell bolt, a shell anti-loosening gasket and a shell locking nut are arranged in the upper fan-shaped air control part;
the valve body and the butterfly plate form a lower execution part, and a valve rod, a valve rod middle support ring, a valve seat, a butterfly plate, a conical pin, a gasket and a valve rod lower support ring are arranged in the lower execution part;
the pneumatic control part and the execution part are connected by a support, and a shell, a support locking bolt, a coupler, a support and valve body locking nut, a support anti-loosening gasket and a support and valve body locking bolt are arranged in the pneumatic control part and the execution part;
the valve body and the valve rod form a connecting and sealing part, and a valve rod sealing Y-shaped ring, a valve rod upper supporting ring and a valve rod are arranged in the connecting and sealing part;
the two side walls of the upper fan-shaped air control part are respectively provided with a first air inlet and a second air inlet, the first air inlet and the second air inlet are respectively connected with an external air control device, the interior of the first air inlet and the second air inlet is communicated with the front cavity and the rear cavity of the blade, the periphery of the blade is provided with a rectangular ring, and a cylinder cavity can be divided into a first air control cavity and a second air control cavity which are independent of each other.
2. The flexible contact type pneumatic control butterfly valve according to claim 1, which is characterized in that: the valve seat and the butterfly plate form a sealing part for cutting off a medium, the sealing surface of the valve seat is a circular inclined surface, and the sealing inclined surface of the butterfly plate is tightly abutted against the sealing circular inclined surface of the valve seat.
3. The flexible contact type pneumatic control butterfly valve according to claim 1, which is characterized in that: the pneumatic control part formed by the upper shell and the lower shell is internally provided with blades, and the blades and the rotating shaft are integrally cast.
4. The flexible contact type pneumatic control butterfly valve according to claim 1, which is characterized in that: the two ends of the valve body, namely the connector form connected with the pipeline, are connected by flanges or butt clamps.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201922131933.5U CN211693557U (en) | 2019-12-03 | 2019-12-03 | Flexible contact type pneumatic control butterfly valve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201922131933.5U CN211693557U (en) | 2019-12-03 | 2019-12-03 | Flexible contact type pneumatic control butterfly valve |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN211693557U true CN211693557U (en) | 2020-10-16 |
Family
ID=72789219
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201922131933.5U Active CN211693557U (en) | 2019-12-03 | 2019-12-03 | Flexible contact type pneumatic control butterfly valve |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN211693557U (en) |
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2019
- 2019-12-03 CN CN201922131933.5U patent/CN211693557U/en active Active
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