CN215059561U

CN215059561U - Pneumatic type sealing butterfly valve

Info

Publication number: CN215059561U
Application number: CN202121601038.6U
Authority: CN
Inventors: 佟泽
Original assignee: Tianjin Tanggu Tianshun Valve Industrial Co ltd
Current assignee: Tianjin Tanggu Tianshun Valve Industrial Co ltd
Priority date: 2021-07-14
Filing date: 2021-07-14
Publication date: 2021-12-07
Anticipated expiration: 2031-07-14

Abstract

The utility model discloses a pneumatic type sealing butterfly valve relates to butterfly valve technical field, specifically is a pneumatic type sealing butterfly valve, which comprises a valve body, two fixed covers are equipped with to the fixed cover in inside of valve body the inboard fixed mounting of fixed cover has pneumatic flexible cover, two the inboard fixed mounting of pneumatic flexible cover has the disk seat, two the left side fixed mounting of pneumatic flexible cover has the air duct, the left side fixedly connected with of air duct presss from both sides tight air pump. This application utilizes the cooperation of air duct and tight air pump of clamp through the setting of fixed cover and pneumatic flexible cover, utilizes pivot, fly leaf, control cover, shutoff board, the cooperation of the air pump that drains simultaneously, after long-time use, through the motion that tight air pump of clamp and the pneumatic flexible cover of air duct control drove the disk seat, is convenient for improve the seal of disk seat and valve plate, prevents not hard up of valve plate and disk seat, has improved the seal of device, makes things convenient for device sealing tube.

Description

Pneumatic type sealing butterfly valve

Technical Field

The application relates to the technical field of butterfly valves, more specifically relates to a pneumatic type sealing butterfly valve.

Background

A butterfly valve, also called a flap valve, is a regulating valve with simple structure, and can be used for the on-off control of low-pressure pipeline media, namely a valve with a closing part (valve clack or butterfly plate) which is a disc and rotates around a valve shaft to achieve opening and closing, the valve can be used for controlling the flow of various fluids such as air, water, steam, various corrosive media, slurry, oil products, liquid metal, radioactive media and the like, and mainly plays a role in cutting off and throttling on a pipeline, the butterfly valve opening and closing part is a disc-shaped butterfly plate and rotates around the axis of the butterfly plate in a valve body so as to achieve the purpose of opening, closing or regulating, the butterfly valve is a valve which opens, closes or regulates the flow of the media by rotating the disc-shaped opening and closing part by 90 degrees in a reciprocating way, the butterfly valve has the advantages of simple structure, small volume, light weight, material consumption saving, small installation size, small driving moment, simple and convenient and rapid operation, the butterfly valve has the advantages that the butterfly valve is wide in use, the used variety and the used quantity of the butterfly valve are still continuously expanded, the butterfly valve is developed towards high temperature, high pressure, large caliber, high sealing performance, long service life, excellent adjusting characteristic and one-valve multiple function, the reliability and other performance indexes of the butterfly valve reach higher levels, the performance of the butterfly valve is improved along with the application of the synthetic rubber for preventing chemical corrosion to the butterfly valve, and the synthetic rubber has the characteristics of corrosion resistance, erosion resistance, stable size, good rebound resilience, easiness in forming, low cost and the like, can be selected according to different use requirements, and can meet the use working condition conditions of the butterfly valve.

The butterfly valve is used for a long time, shin bone friction between a valve plate and a valve seat can lead to the appearance of a gap, the tightness is easy to cause, the service life of a rigid butterfly valve is prolonged, meanwhile, the tightness of fluid is difficult to achieve, the tightness is affected, and when the existing butterfly valve needs to be maintained and replaced, a water main gate needs to be closed usually, and the normal use of the device can be affected.

SUMMERY OF THE UTILITY MODEL

In view of the above, the present application provides a pneumatic sealing butterfly valve to improve the above problems.

In order to achieve the above purpose, the utility model discloses a following technical scheme realizes: a pneumatic sealing butterfly valve comprises a valve body, wherein two fixed sleeves are fixedly sleeved inside the valve body, pneumatic telescopic sleeves are fixedly mounted on the inner sides of the two fixed sleeves, a valve seat is fixedly mounted on the inner sides of the pneumatic telescopic sleeves, air guide pipes are fixedly mounted on the left sides of the two pneumatic telescopic sleeves, a clamping air pump is fixedly connected to the left sides of the air guide pipes, a rotating shaft is movably sleeved inside the valve body, a movable plate is fixedly mounted on the right side of the top end of the rotating shaft, a control sleeve is fixedly mounted above the valve body, a blocking plate is fixedly mounted inside the control sleeve, a water discharging air pump is fixedly mounted above the control sleeve, a valve plate is fixedly sleeved outside the rotating shaft, a packing sleeve is movably mounted on the front side and the rear side of the valve body, a packing air pump is fixedly mounted above the packing sleeve, and a gas injection pipe is fixedly mounted at the bottom of an output shaft of the packing air pump, and a packing air bag is fixedly sleeved on the outer side of the air injection pipe.

Optionally, the front surface of the valve seat is attached to the rear surface of the valve plate, and the rear surface of the valve seat is attached to the front surface of the valve plate.

Optionally, the rotating shaft extends upwards to the inside of the control sleeve, the movable plate is located inside the control sleeve, and the height value of the movable plate is the same as the height value of the inner cavity of the control sleeve.

Optionally, the height value of shutoff board is the same with the height value of fly leaf, the front end of shutoff board is laminated with the rear side of pivot.

Optionally, the output shaft of the water discharge air pump extends to the inside of the control sleeve and is located on the right side of the movable plate and the blocking plate.

Optionally, the inner side of the packing sleeve is provided with a cylindrical groove adapted to the packing air bag, and the outer side of the packing air bag is attached to the inner side of the cylindrical groove after being inflated.

The application provides a pair of pneumatic type sealing butterfly valve possesses following beneficial effect:

1. this application utilizes the cooperation of air duct and tight air pump of clamp through the setting of fixed cover and pneumatic flexible cover, utilizes pivot, fly leaf, control cover, shutoff board, the cooperation of the air pump that drains simultaneously, after long-time use, through the motion that tight air pump of clamp and the pneumatic flexible cover of air duct control drove the disk seat, is convenient for improve the seal of disk seat and valve plate, prevents not hard up of valve plate and disk seat, has improved the seal of device, makes things convenient for device sealing tube.

2. This application is through bolt and nut side installation packing sleeve around the valve body, will pack the top that the air pump was installed at packing sleeve, connect the gas injection pipe through the bottom that makes packing air pump, make the outside of gas injection pipe cup joint the packing gasbag, pack the gasbag at the air exhaust state among the normal waterproof process, when needing to be changed or maintain the valve body, make packing the gasbag through packing air pump and gas injection pipe and aerify, make packing the gasbag and pack the inner chamber of packing sleeve and carry out the shutoff water, the usability of device has been improved, the use of convenient device.

Drawings

In order to more clearly illustrate the technical solutions in the embodiments of the present application, the drawings needed to be used in the description of the embodiments are briefly introduced below, and it is obvious that the drawings in the following description are only some embodiments of the present application, and it is obvious for those skilled in the art to obtain other drawings based on these drawings without creative efforts.

FIG. 1 shows a schematic structural diagram of the present application;

FIG. 2 shows a schematic view of the present application in split configuration;

FIG. 3 is a schematic view of the pneumatic bellows of the present application;

fig. 4 shows a schematic view of the structure of the packing balloon of the present application.

In the figure: 1. a valve body; 2. fixing a sleeve; 3. a pneumatic telescopic sleeve; 4. a valve seat; 5. an air duct; 6. clamping the air pump; 7. a rotating shaft; 8. a movable plate; 9. a control sleeve; 10. a plugging plate; 11. a water discharge air pump; 12. a valve plate; 13. sealing a spacer bush; 14. sealing the air bag; 15. sealing an air isolating pump; 16. and a gas injection pipe.

Detailed Description

The technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the drawings in the embodiments of the present application, and it is obvious that the described embodiments are only a part of the embodiments of the present application, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present application.

Referring to fig. 1 to 4, the present invention provides a technical solution: a pneumatic sealed butterfly valve comprises a valve body 1, two fixed sleeves 2 are fixedly sleeved in the valve body 1, pneumatic telescopic sleeves 3 are fixedly installed on the inner sides of the two fixed sleeves 2, valve seats 4 are fixedly installed on the inner sides of the two pneumatic telescopic sleeves 3, the front sides of the rear side valve seats 4 are attached to the rear sides of valve plates 12, the rear sides of the front side valve seats 4 are attached to the front sides of the valve plates 12, the sealing performance of the pneumatic sealed butterfly valve is improved by matching the fixed sleeves 2 and the pneumatic telescopic sleeves 3 through air ducts 5 and clamping air pumps 6, the inner sides of the two valve seats 4 are conveniently controlled to be attached to the front sides and the rear sides of the valve plates 12 when the pneumatic sealed butterfly valve is used, the use of the pneumatic sealed butterfly valve is facilitated, the clamping air pumps 6 are controlled to pump air, the clamping air pumps 6 outwards pump the air in the pneumatic telescopic sleeves 3 through the air ducts 5, and output shafts of the pneumatic telescopic sleeves 3 drive the valve seats 4 to move forwards and backwards, the valve seat 4 is separated from the valve plate 12, the valve seat 4 is quickly separated from the valve plate 12, the practicability of the device is improved, the left sides of the two pneumatic telescopic sleeves 3 are fixedly provided with air guide pipes 5, the left sides of the air guide pipes 5 are fixedly connected with clamping air pumps 6, the inside of the valve body 1 is movably sleeved with a rotating shaft 7, the right side of the top end of the rotating shaft 7 is fixedly provided with a movable plate 8, the upper part of the valve body 1 is fixedly provided with a control sleeve 9, the rotating shaft 7 upwards extends to the inside of the control sleeve 9, the movable plate 8 is positioned inside the control sleeve 9, the height value of the movable plate 8 is the same as that of the inner cavity of the control sleeve 9, the water discharge air pump 11 is controlled to send air to the inside of the control sleeve 9, the air inside the control sleeve 9 is enabled to stir the movable plate 8 leftwards, the movable plate 8 is enabled to drive the control sleeve 9 to rotate, the rotation of the valve plate 12 is enabled to drive the rotation angle of the valve plate 12 to control the size of water flow, when the pipeline is closed, firstly, the water discharge air pump 11 is controlled to stop air delivery, so that the movable plate 8 drives the control sleeve 9 and the valve plate 12 to rotate to an initial state, the valve body is convenient to control to open and close, the practicability of the device is improved, the device is convenient to use, a plugging plate 10 is fixedly installed in the control sleeve 9, the height value of the plugging plate 10 is the same as that of the movable plate 8, the front end of the plugging plate 10 is attached to the rear side of the rotating shaft 7, the water discharge air pump 11 is fixedly installed above the control sleeve 9, the output shaft of the water discharge air pump 11 extends into the control sleeve 9 and is positioned on the right sides of the movable plate 8 and the plugging plate 10, the movable plate 8 and the plugging plate 10 play a role in separating the control sleeve 9, meanwhile, the fixed installation of the plugging plate 10 and the movable installation of the movable plate 8 are convenient to control the rotating angle of the rotating shaft 7 through inflation or deflation performance, and further control the rotating angle of the valve plate 12, the practicability of the device is improved, the device is convenient to use, meanwhile, gas is conveniently conveyed to the right side of the inner cavity of the control sleeve 9 through the water discharge air pump 11 so as to control the angle of the movable plate 8, so that the angle of the rotating shaft 7 and the valve plate 12 is controlled, the flow is further controlled, the valve plate 12 is fixedly sleeved on the outer side of the rotating shaft 7, the front side and the rear side of the valve body 1 are movably provided with the packing sleeves 13, the inner sides of the packing sleeves 13 are provided with column-shaped grooves matched with the packing air bags 14, the packing air bags 14 are attached to the inner sides of the column-shaped grooves after being inflated on the outer sides, when the valve body 1 needs to be replaced, the packing air pump 15 is controlled to inject air, the packing air pump 15 is enabled to inject air into the packing air bags 14 through the air injection pipe 16, then the packing air bags 14 are enabled to seal the inner cavities of the packing air bags 13, water plugging is completed, the packing air bags 14 are in a compression state when not inflated, the liquid can flow through the packing air bags 14 normally, and the normal flow of the liquid can be prevented from blocking, an air packing pump 15 is fixedly arranged above the packing sleeve 13, an air injection pipe 16 is fixedly arranged at the bottom of an output shaft of the air packing pump 15, and a packing air bag 14 is fixedly sleeved on the outer side of the air injection pipe 16.

In summary, when the pneumatic sealed butterfly valve provided by the present application is used, firstly, the clamping air pump 6 is controlled to pump air inside the pneumatic telescopic sleeve 3 outwards by controlling the clamping air pump 6 to pump the air inside the pneumatic telescopic sleeve 3 through the air guide tube 5, so that the output shaft of the pneumatic telescopic sleeve 3 drives the valve seat 4 to move forwards and backwards, so that the valve seat 4 is separated from the valve plate 12, then the water discharge air pump 11 is controlled to send the air into the control sleeve 9, so that the air inside the control sleeve 9 stirs the movable plate 8 leftwards, the movable plate 8 rotates the control sleeve 9, the rotation of the control sleeve 9 drives the valve plate 12 to rotate, the size of the water flow is controlled through the rotation angle of the valve plate 12, then, when a pipeline is closed, the water discharge air pump 11 is controlled to stop air delivery, the movable plate 8 drives the control sleeve 9 and the valve plate 12 to rotate to an initial state, and then the clamping air pump 6 is controlled to send air to the insides of the two pneumatic telescopic sleeves 3 through the air guide tube 5, the output shaft of the pneumatic telescopic sleeve 3 is used for pushing the valve seat 4 to move to the front side and the rear side of the valve plate 12, the valve seat 4 is attached to the valve plate 12, when the valve body 1 needs to be replaced, the air is injected by controlling the packing air pump 15, the packing air pump 15 is used for injecting air to the inside of the packing air bag 14 through the air injection pipe 16, then the packing air bag 14 is used for sealing the inner cavity of the packing sleeve 13, and water plugging is completed.

Finally, it should be noted that: the above embodiments are only used to illustrate the technical solutions of the present application, and not to limit the same; although the present application has been described in detail with reference to the foregoing embodiments, it will be understood by those of ordinary skill in the art that: the technical solutions described in the foregoing embodiments may still be modified, or some technical features may be equivalently replaced; such modifications and substitutions do not necessarily depart from the spirit and scope of the corresponding technical solutions in the embodiments of the present application.

Claims

1. The utility model provides a pneumatic type seals butterfly valve, includes valve body (1), its characterized in that: the valve is characterized in that two fixed sleeves (2) are fixedly sleeved in the valve body (1), two pneumatic telescopic sleeves (3) are fixedly installed on the inner sides of the fixed sleeves (2), two valve seats (4) are fixedly installed on the inner sides of the pneumatic telescopic sleeves (3), two air guide pipes (5) are fixedly installed on the left sides of the pneumatic telescopic sleeves (3), clamping air pumps (6) are fixedly connected to the left sides of the air guide pipes (5), a rotating shaft (7) is movably sleeved in the valve body (1), a movable plate (8) is fixedly installed on the right side of the top end of the rotating shaft (7), a control sleeve (9) is fixedly installed above the valve body (1), a blocking plate (10) is fixedly installed in the control sleeve (9), a water discharging air pump (11) is fixedly installed above the control sleeve (9), and a valve plate (12) is fixedly sleeved on the outer side of the rotating shaft (7), the side movable mounting has packing sleeve (13) around valve body (1), the top fixed mounting who packs sleeve (13) has packing air pump (15), the bottom fixed mounting who packs air pump (15) output shaft has gas injection pipe (16), the fixed cover in the outside of gas injection pipe (16) is equipped with packing gasbag (14).

2. The pneumatic sealing butterfly valve of claim 1, wherein: the front surface of the valve seat (4) is attached to the rear surface of the valve plate (12), and the rear surface of the valve seat (4) is attached to the front surface of the valve plate (12).

3. The pneumatic sealing butterfly valve of claim 1, wherein: pivot (7) upwards extend to the inside of control sleeve (9), fly leaf (8) are located the inside of control sleeve (9), the height value of fly leaf (8) is the same with control sleeve (9) inner chamber height value.

4. The pneumatic sealing butterfly valve of claim 1, wherein: the height value of shutoff board (10) is the same with the height value of fly leaf (8), the front end of shutoff board (10) is laminated with the rear side of pivot (7).

5. The pneumatic sealing butterfly valve of claim 1, wherein: an output shaft of the water discharging air pump (11) extends to the inside of the control sleeve (9) and is positioned on the right side of the movable plate (8) and the blocking plate (10).

6. The pneumatic sealing butterfly valve of claim 1, wherein: the inner side of the packing sleeve (13) is provided with a cylindrical groove matched with the packing air bag (14), and the outer side of the packing air bag (14) is attached to the inner side of the cylindrical groove after being inflated.