CN217874231U

CN217874231U - Expansion butterfly valve

Info

Publication number: CN217874231U
Application number: CN202221935983.4U
Authority: CN
Inventors: 花成秀; 李海涛
Original assignee: Zhejiang Aomi Fluid Equipment Co ltd
Current assignee: Zhejiang Aomi Fluid Equipment Co ltd
Priority date: 2022-07-23
Filing date: 2022-07-23
Publication date: 2022-11-22
Anticipated expiration: 2032-07-23

Abstract

The utility model relates to an inflation butterfly valve, its characterized in that: set up the valve plate in the valve gap including valve gap and rotation, the top of valve gap is equipped with and is used for driving valve plate pivoted pneumatic actuator, the beneficial effects of the utility model reside in that: during the use, aerify the shunt valve through outside air supply instrument, the shunt valve passes through the second connecting pipe and carries gas to pneumatic actuator department, drive the valve plate through pneumatic actuator and rotate, thereby control opening and shutting of valve body, but the inflation sealing washer is not ventilated at valve plate pivoted in-process, when the valve plate makes the valve body be in the closure state, pneumatic actuator carries gas through first connecting pipe in gas tube and the inflation sealing washer, expand the inflation sealing washer, make the circumference surface of inflation sealing washer and valve plate laminate, sealed effect has been played, it is effectual to close.

Description

Expansion butterfly valve

Technical Field

The utility model belongs to the technical field of the valve, especially, relate to an inflation butterfly valve.

Background

At present, the valve plate and the sealing ring are not tightly closed or are seriously abraded in long-time use often in the common pneumatic butterfly valve, so that a medium is easily led to pass through the valve, the valve is not good in closing effect, and even potential safety hazards can be caused to cause explosion and fire when the valve is serious.

Disclosure of Invention

In order to solve the technical problem, the utility model provides a following technical scheme: an expansion butterfly valve which is characterized in that: set up the valve plate in the valve gap including valve gap and rotation, the top of valve gap is equipped with and is used for driving valve plate pivoted pneumatic actuator, be equipped with expandable sealing washer in the valve gap, pneumatic actuator's top is equipped with and is used for giving expandable sealing washer gas filled inflatable module, inflatable module is including fixed mounting panel, the fixed flow divider valve that sets up on the mounting panel and the fixed gas transmission pump that sets up on the mounting panel that sets up on pneumatic actuator, be fixed with two gas heads on the flow divider valve at least, the gas head and the gas transmission pump of flow divider valve are connected through first connecting pipe, be connected through the second connecting pipe between another gas head and the pneumatic actuator of flow divider valve, the gas outlet end fixedly connected with gas tube of gas transmission pump, the end of giving vent to anger of gas tube is connected with expandable sealing washer.

The utility model discloses further setting up to: the pneumatic actuator is characterized in that a flange mounting sleeve is fixed on the lower surface of the pneumatic actuator, the lower end of the flange mounting sleeve is fixedly connected with the valve cover, a rotating shaft is fixed on the valve plate and rotatably arranged in the flange mounting sleeve, the upper end of the rotating shaft is connected with the output end of the pneumatic actuator, and the expandable sealing ring is located between the valve plate and the valve cover.

The utility model discloses further set up to: the one end of flange installation cover is fixed with the intake pipe, the output fixed connection of intake pipe and gas tube, the cavity and the intake pipe of flange installation cover link up the setting, the fixed rotation collar that is equipped with in the flange installation cover, the axis of rotation rotates and sets up in rotating the collar, the interval sets up the formation runner of ventilating between the circumference lateral wall of axis of rotation and the inside wall of flange installation cover, expandable sealing ring sets up on the valve plate, the inlet port has been seted up on the expandable sealing ring, the runner of ventilating link up the setting with the inlet port.

The utility model discloses further setting up to: the valve gap includes preceding valve gap and is located the rear of preceding valve gap and with preceding valve gap fixed connection's back valve gap, preceding mounting groove has been seted up to one side of preceding valve gap towards back valve gap, back mounting groove has been seted up to one side of back valve gap towards preceding valve gap, the front end and the rear end of expandable sealing ring are located preceding mounting groove and back mounting groove respectively.

The utility model discloses further setting up to: the front valve cover is fixedly connected with the rear valve cover through a screw, and a sealing ring is arranged between the front valve cover and the rear valve cover.

The utility model discloses further set up to: the hollow radius of the rotary mounting ring is smaller than that of the flange mounting sleeve.

The utility model discloses further setting up to: a shaft sleeve fixedly connected with the front valve cover is arranged between the front valve cover and the rear valve cover, a rotating shaft is fixed below the valve plate, and the rotating shaft is rotatably arranged in the shaft sleeve.

The beneficial effects of the utility model reside in that: when the valve plate needs to rotate, the air transmission pump is started to suck air to enable the expandable sealing ring to contract, the diversion valve inflates the diversion valve through the second connecting pipe, the pneumatic actuator drives the valve plate to rotate, and the diversion valve drives the valve plate to rotate.

Drawings

FIG. 1 is a schematic structural view of the present invention;

FIG. 2 is a schematic view of the bottom view structure of the present invention;

FIG. 3 isbase:Sub>A schematic cross-sectional view of A-A of FIG. 2;

FIG. 4 is a schematic diagram of the explosion structure of the present invention;

fig. 5 is a schematic diagram of the explosion structure of the present invention.

Detailed Description

According to fig. 1-5, the embodiment discloses an expansion butterfly valve, which includes a valve cover 1 and a valve plate 2 rotatably disposed in the valve cover 1, a pneumatic actuator 3 for driving the valve plate 2 to rotate is disposed above the valve cover 1, the valve plate is conveniently driven to rotate by the pneumatic actuator, an expandable sealing ring 4 is disposed in the valve cover 1, an inflation assembly 5 for inflating the expandable sealing ring 4 is disposed above the pneumatic actuator 3, the inflation assembly 5 includes a mounting plate 6 fixedly disposed on the pneumatic actuator 3, a diverter valve 7 fixedly disposed on the mounting plate 6, and a gas transmission pump 8 fixedly disposed on the mounting plate 6, at least two gas outlets 9 are fixed on the diverter valve 7, the gas outlet of the diverter valve 7 is connected with the gas transmission pump 8 through a first connecting pipe 10, and another gas outlet of the diverter valve 7 is connected with the pneumatic actuator 3 through a second connecting pipe 11, the air outlet end of the air transmission pump 8 is fixedly connected with an air inflation tube 12, the air outlet end of the air inflation tube 12 is connected with the expandable sealing ring 3, when the air transmission valve is used, the diverter valve is inflated through an external air source tool, the diverter valve conveys air to the pneumatic actuator through the second connecting tube, the valve plate is driven to rotate through the pneumatic actuator, so that the valve body is controlled to be opened and closed, the expandable sealing ring is not inflated in the rotating process of the valve plate, when the valve plate enables the valve body to be in a closed state, the pneumatic actuator conveys air into the air inflation tube and the expandable sealing ring through the first connecting tube, the expandable sealing ring is expanded, the expandable sealing ring is attached to the circumferential outer surface of the valve plate, the sealing effect is achieved, the closing effect is good, when the valve plate needs to be rotated, the gas transmission pump is started to suck gas to enable the expandable sealing ring to contract, then an external gas source tool inflates the shunt valve, the shunt valve conveys gas to the pneumatic actuator through the second connecting pipe, and the valve plate is driven to rotate through the pneumatic actuator, so that the valve body is controlled to be opened and closed.

The utility model discloses further set up to: the lower fixed surface of pneumatic actuator 3 has flange installation cover 13, the lower extreme and the valve gap 1 fixed connection of flange installation cover 13, be fixed with axis of rotation 14 on the valve plate 2, axis of rotation 14 rotates and sets up in flange installation cover 13, the upper end of axis of rotation 14 is connected with pneumatic actuator 3's output, but the installation of axis of rotation is made things convenient for through setting up the flange installation cover to expandable seal circle 3 is located between valve plate 2 and the valve gap 1.

The utility model discloses further set up to: the improved structure of the air valve is characterized in that an air inlet pipe 15 is fixed at one end of the flange mounting sleeve 13, the air inlet pipe 15 is fixedly connected with the output end of the air inflation pipe 12 and is conveniently connected with the air inflation pipe through the air inlet pipe, the hollow part of the flange mounting sleeve 13 is communicated with the air inlet pipe 15, a rotating mounting ring 16 is fixedly arranged in the flange mounting sleeve 13, the rotating shaft 14 is rotatably arranged in the rotating mounting ring 16, the rotating shaft is convenient to rotate through the rotating mounting ring, a ventilating flow channel 17 is formed between the circumferential outer side wall of the rotating shaft 14 and the inner side wall of the flange mounting sleeve 13 at intervals, the expandable sealing ring 3 is arranged on the valve plate 2, an air inlet hole 18 is formed in the expandable sealing ring 3, the ventilating flow channel 17 is communicated with the air inlet hole 18, a ventilating flow channel is formed between the rotating shaft and the flange mounting sleeve at intervals, air enters the air inlet pipe through the air inflation pipe and flows into the ventilating flow channel, and finally expands the expandable sealing ring through the air inlet hole of the expandable sealing ring, the expandable sealing ring is attached to the circumferential outer surface of the valve plate, and the sealing effect of sealing is achieved.

The utility model discloses further setting up to: the valve cover 1 comprises a front valve cover 19 and a rear valve cover 20 which is located behind the front valve cover 19 and fixedly connected with the front valve cover 19, a front mounting groove 21 is formed in one side, facing the rear valve cover 20, of the front valve cover 19, a rear mounting groove 22 is formed in one side, facing the front valve cover 19, of the rear valve cover 20, the front end and the rear end of the expandable sealing ring 3 are located in the front mounting groove 21 and the rear mounting groove 22 respectively, and the expandable sealing ring is convenient to mount by means of the mounting grooves.

The utility model discloses further set up to: the front valve cover 19 is fixedly connected with the rear valve cover 20 through a screw rod, the sealing ring 23 is arranged between the front valve cover 19 and the rear valve cover 20, and the sealing connection effect is achieved after the front valve cover and the rear valve cover are fixedly connected through the screw rod through the sealing ring.

The utility model discloses further setting up to: the hollow radius of the rotating mounting ring 16 is smaller than the hollow radius of the flange mounting sleeve 13.

The utility model discloses further setting up to: be equipped with the axle sleeve 24 with preceding valve gap 19 fixed connection between preceding valve gap 19 and the back valve gap 20, the below of valve plate 2 is fixed with pivot 25, pivot 25 rotates and sets up in axle sleeve 24, through setting up the axle sleeve to rotate the pivot setting of valve plate on the axle sleeve, make things convenient for the rotation of valve plate.

The above description is only for the preferred embodiment of the present invention, and the present invention is not limited to the above embodiment, and any decoration, modification or equivalent replacement made by those skilled in the art according to the above description is within the protection scope of the present invention.

Claims

1. An expansion butterfly valve which is characterized in that: including the valve gap and rotate the valve plate that sets up in the valve gap, the top of valve gap is equipped with and is used for driving valve plate pivoted pneumatic actuator, be equipped with expandable sealing washer in the valve gap, pneumatic actuator's top is equipped with and is used for giving the inflatable inflation assembly of expandable sealing washer, inflation assembly is including fixed mounting panel, the fixed flow divider that sets up on the mounting panel and the fixed gas transmission pump that sets up on the mounting panel that sets up on pneumatic actuator, be fixed with two gas heads on the flow divider at least, the gas head and the gas transmission pump of flow divider are connected through first connecting pipe, be connected through the second connecting pipe between another gas head and the pneumatic actuator of flow divider, the gas transmission pump's the fixedly connected with gas tube of giving vent to anger, the end of giving vent to anger of gas tube is connected with expandable sealing washer.

2. The expansion butterfly valve of claim 1, wherein: the lower surface of the pneumatic actuator is fixedly provided with a flange mounting sleeve, the lower end of the flange mounting sleeve is fixedly connected with the valve cover, the valve plate is fixedly provided with a rotating shaft, the rotating shaft is rotatably arranged in the flange mounting sleeve, the upper end of the rotating shaft is connected with the output end of the pneumatic actuator, and the expandable sealing ring is positioned between the valve plate and the valve cover.

3. The expansion butterfly valve of claim 2, wherein: the one end of flange installation cover is fixed with the intake pipe, the output fixed connection of intake pipe and gas tube, the cavity and the intake pipe of flange installation cover link up the setting, the fixed rotation collar that is equipped with in the flange installation cover, the axis of rotation rotates and sets up in rotating the collar, the interval sets up the formation runner of ventilating between the circumference lateral wall of axis of rotation and the inside wall of flange installation cover, expandable sealing ring sets up on the valve plate, the inlet port has been seted up on the expandable sealing ring, the runner of ventilating link up the setting with the inlet port.

4. An expansion butterfly valve according to claim 3, characterized in that: the valve gap includes preceding valve gap and is located the rear of preceding valve gap and with preceding valve gap fixed connection's back valve gap, preceding mounting groove has been seted up to one side of preceding valve gap towards back valve gap, back mounting groove has been seted up to one side of back valve gap towards preceding valve gap, the front end and the rear end of expandable sealing ring are located preceding mounting groove and back mounting groove respectively.

5. The expansion butterfly valve of claim 4, wherein: the front valve cover is fixedly connected with the rear valve cover through a screw, and a sealing ring is arranged between the front valve cover and the rear valve cover.

6. The expansion butterfly valve of claim 5, wherein: the hollow radius of the rotary mounting ring is smaller than that of the flange mounting sleeve.

7. The expansion butterfly valve of claim 6, wherein: a shaft sleeve fixedly connected with the front valve cover is arranged between the front valve cover and the rear valve cover, a rotating shaft is fixed below the valve plate, and the rotating shaft is rotatably arranged in the shaft sleeve.