CN210106618U

CN210106618U - Manual-automatic formula ventilation butterfly valve with supporting seat

Info

Publication number: CN210106618U
Application number: CN201920497204.9U
Authority: CN
Inventors: 汤仁义
Original assignee: Wuxi Lunqu Automatic Control Valve Manufacturing Co Ltd
Current assignee: Wuxi Lunqu Automatic Control Valve Manufacturing Co Ltd
Priority date: 2019-04-13
Filing date: 2019-04-13
Publication date: 2020-02-21
Anticipated expiration: 2029-04-13

Abstract

The utility model provides a manual-automatic formula ventilation butterfly valve with supporting seat, relate to valve technical field, which comprises a valve body, the valve plate, the valve shaft, supporting seat and hand wheel mechanism and pneumatic actuator, valve body inside wall an organic whole is equipped with the valve plate stopper, the end symmetry is equipped with two valve shaft connecting holes about going up, be equipped with the valve plate in the central valve pocket, through the airtight packing of filler and gland between valve shaft upper end and the valve shaft connecting hole, it is sealed through filler and gland also between the unnecessary part of valve shaft lower extreme collusion and the valve shaft connecting hole, the supporting seat includes fore-stock and back supporting seat, the valve shaft upper end is equipped with screw thread section and worm wheel, the screw thread section is connected with pneumatic actuator's swing arm, pneumatic actuator is equipped with pneumatic elastic diaphragm and swing arm, the worm cooperation. The design of the hand wheel mechanism and the pneumatic actuator can conveniently control the rotation of the valve shaft, and has the advantages of compact structure, high automation degree, convenient operation and wide application range.

Description

Manual-automatic formula ventilation butterfly valve with supporting seat

Technical Field

The utility model belongs to the technical field of the valve technique and specifically relates to indicate a manual-automatic formula ventilation butterfly valve with supporting seat.

Background

The existing ventilation butterfly valve is a non-closed butterfly valve, is widely applied to pipelines in production processes of building materials, metallurgy, mines, electric power and the like, is used for communicating, opening, closing or adjusting medium quantity, is also an important accessory of a ventilation system of a cabin of a ship, plays an extremely key role in the ventilation system of the ship, and can close an air door when a diesel engine and the like are flamed out by utilizing the ventilation butterfly valve. The transmission mode comprises manual or electric transmission, and the electric motor or the turbine can drive the driving actuating mechanism to enable the butterfly plate to rotate freely within the range of 90 degrees so as to achieve the purpose of opening and closing or adjusting the medium flow.

However, the existing ventilation butterfly valve is inconvenient to use, after a pipeline with a determined length is provided with the ventilation butterfly valve, the fixed mounting bracket is not fixed and unchangeable, and is lengthened or shortened along with the change of a use occasion, so that the part connected with the valve shaft needs to be lengthened completely, the structure is stable and reliable, and in addition, the existing ventilation butterfly valve is rarely controlled manually and automatically, so that the development of the modern automatic valve control technology is hindered.

Disclosure of Invention

The utility model relates to a purpose is: in view of the problems that the existing ventilation butterfly valve cannot be lengthened or shortened along with the change of use occasions in the direction of a valve shaft and the manual-automatic integrated control valve can be realized rarely in the background art, the manual-automatic integrated ventilation butterfly valve with the supporting seat is provided, and after the supporting seats with suitable sizes are symmetrically arranged in the front and back of the traditional ventilation butterfly valve, the lengthened valve shaft is selected for replacement use so as to be suitable for occasions with various fixing requirements; meanwhile, the design of the hand wheel mechanism and the pneumatic actuator can conveniently control the rotation of the valve shaft, the structure is compact, the use is convenient, the automation degree is high, the ventilation system is effectively opened or closed, the operation is convenient, and the application range is wide.

In order to achieve the above purpose, the utility model adopts the following technical scheme:

a manual-automatic integrated ventilation butterfly valve with a support seat comprises a valve body, a valve plate, a valve shaft, the support seat, a hand wheel mechanism and a pneumatic actuator,

flanges connected with a pipeline are symmetrically arranged on two sides of the valve body, valve plate limiting blocks are integrally arranged on the inner side wall, two valve shaft connecting holes are symmetrically arranged at the upper end and the lower end, a valve plate is arranged in a central valve cavity, a valve shaft matching hole is arranged at the center of the valve plate, the valve shaft connecting holes and the valve shaft matching holes are connected with the valve shaft sleeve, the upper end of the valve shaft and the valve shaft connecting holes are hermetically filled through a packing and a packing gland, a through hole is arranged at the periphery of the packing gland, the packing gland is matched with a blind threaded hole arranged at the upper end of the valve body through a double-headed bolt to be screwed and fixed, then the packing gland is screwed to be airtight through a nut, the redundant part communicated with the lower end of the valve shaft and the valve shaft connecting,

the supporting seat comprises a front supporting seat and a rear supporting seat, the supporting seat is set to different lengths according to different specifications, the rear supporting seat is provided with a bearing and is matched and fixedly connected with the redundant part communicated with the lower end of the valve shaft, the rear supporting seat is fixed with the lower end of the valve body through a bolt, the front supporting seat is also provided with a bearing and is matched and fixedly connected with the upper end part of the valve shaft, the front supporting seat is fixed with the upper end of the valve body through a bolt,

the pneumatic actuator is provided with a pneumatic elastic diaphragm and a rotary rod, thrust is applied to the pneumatic elastic diaphragm by means of high-pressure gas input from an air compressor, the rotary rod is driven to rotate by a certain angle, the valve shaft is driven to rotate to change the opening of the valve plate, automatic control adjustment is achieved, and manual rotation transmission is achieved by the worm wheel and the worm matched with the hand wheel mechanism.

Furthermore, an O-shaped sealing ring, lubricating grease and an oil absorption pad are further sleeved at the matching part of the valve shaft connecting hole at the upper end of the valve body and the valve shaft connecting hole at the lower end of the valve body and the valve shaft, and the oil absorption pad is matched and fixed with the valve shaft through a straight pin.

Further, the valve plate limiting block and the valve shaft are matched to control the initial position of the valve plate to be parallel to the cross section of the valve body, and the valve plate limiting block can only rotate to a maximum angle of 90 degrees by taking the valve shaft as a central shaft under the driving of the hand wheel mechanism or the pneumatic actuator.

Further, a connecting line of the valve shaft connecting hole passes through the center of the valve body.

Furthermore, the hand wheel mechanism and the pneumatic actuator are fixedly connected to a support, and the support is fixedly connected with the front support seat through a bolt.

Implement the utility model discloses a manual-automatic formula ventilation butterfly valve with supporting seat has following beneficial effect:

the manual-automatic integrated ventilation butterfly valve with the supporting seat is suitable for occasions with various fixing requirements by selecting a lengthened valve shaft for replacement after the supporting seat with a suitable size is symmetrically arranged in front and back; meanwhile, the design of the hand wheel mechanism and the pneumatic actuator can conveniently control the rotation of the valve shaft, the structure is compact, the use is convenient, the automation degree is high, the ventilation system is effectively opened or closed, the operation is convenient, and the application range is wide.

Drawings

In order to more clearly illustrate the technical solutions in the embodiments of the present invention, the drawings used in the description of the embodiments will be briefly described below.

FIG. 1 is a schematic structural view of a manual-automatic integrated ventilation butterfly valve with a support seat according to the present embodiment;

FIG. 2 is a schematic cross-sectional view of the valve body of the present embodiment;

FIG. 3 is an enlarged view of a portion of FIG. 1 at A;

the valve comprises a valve body 1, a valve plate 101, a valve plate limiting block 2, a valve plate 21, a valve plate edge, a bearing 3, a valve shaft 4, a rear supporting seat 5, a 6-O-shaped sealing ring, a packing 7, a packing gland 8, a stud 9, a front supporting seat 10, a straight pin 11, a support 12, an oil suction pad 13, a hand wheel mechanism 14 and a pneumatic actuator 15.

Detailed Description

The technical solution in the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present invention.

As shown in fig. 1-3, the utility model provides a manual-automatic formula ventilation butterfly valve with supporting seat, including valve body 1, valve plate 2, valve shaft 4, supporting seat (5, 10) and hand wheel mechanism 14 and pneumatic actuator 15.

Specifically, flanges connected with a pipeline are symmetrically arranged on two sides of the valve body 1, a valve plate limiting block 101 is integrally arranged on the inner side wall, two valve shaft connecting holes are symmetrically arranged on the upper end and the lower end, a valve plate 2 is arranged in the central valve cavity, the center of the valve plate 2 is provided with a valve shaft matching hole, the valve shaft connecting hole and the valve shaft matching hole are sleeved and connected with the valve shaft 4, the space between the upper end of the valve shaft 4 and the connecting hole of the valve shaft is hermetically filled by a packing 7 and a packing gland 8, the periphery of the packing gland 8 is provided with a through hole, the double-headed bolt 9 is matched and screwed with a blind threaded hole arranged at the upper end of the valve body 1, and then the nut is screwed to be closed, the part of the lower end of the valve shaft 4 communicated with the connecting hole of the valve shaft is sealed by the packing 7 and the packing gland 8, the packing gland 8 is matched, screwed and fixed with a blind threaded hole formed in the lower end of the valve body 1 through a stud bolt 9, and then screwed tightly to be closed through a nut.

The supporting seat comprises a front supporting seat 10 and a rear supporting seat 5, different lengths are set according to different specifications, the rear supporting seat 5 is provided with a bearing 3 and is fixedly connected with the redundant part communicated with the lower end of the valve shaft 4 in a serial mode, the rear supporting seat 5 is fixed to the lower end of the valve body 1 through a bolt, the front supporting seat 10 is also provided with the bearing 3 and is fixedly connected with the upper end part of the valve shaft 4 in a matching mode, and the front supporting seat 10 is fixed to the upper end of the valve body 1 through a bolt.

The upper end of the valve shaft 4 is provided with a thread section and a worm wheel, the thread section is connected with a rotary rod of the pneumatic actuator 15, the pneumatic actuator 15 is provided with a pneumatic elastic membrane and a rotary rod, thrust is applied to the pneumatic elastic membrane by means of high-pressure gas input from an air compressor, the rotary rod is driven to rotate by a certain angle, the valve shaft is driven to rotate to change the opening of the valve plate, automatic control adjustment is achieved, and the worm wheel is matched with a worm arranged on the hand wheel mechanism 14 to achieve manual rotation transmission.

In a further embodiment, an O-ring 6, grease and an oil absorption pad 13 are further sleeved at the matching positions of the valve shaft connecting hole at the upper end and the valve shaft connecting hole at the lower end of the valve body 1 and the valve shaft 4, and the oil absorption pad 13 is matched and fixed with the valve shaft 4 through a straight pin 11.

A further embodiment is that the valve plate limiting block 101 cooperates with the valve shaft 4 to control the initial position of the valve plate 2 to be parallel to the cross section of the valve body 1, and the valve plate can only rotate to a maximum angle of 90 ° by taking the valve shaft 4 as a central axis under the driving of the hand wheel mechanism 14 or the pneumatic actuator 15.

In a further embodiment, the line connecting the valve shaft connection holes passes through the center of the valve body 1.

In a further embodiment, the handwheel mechanism 14 and the pneumatic actuator 15 are fixedly connected to a bracket 12, and the bracket 12 is fixedly connected to the front support seat 10 through a bolt.

The embodiments of the present invention have been described in detail with reference to the accompanying drawings, but the present invention is not limited to the above embodiments, and various changes, modifications, substitutions and alterations can be made without departing from the spirit of the present invention within the knowledge of those skilled in the art, and the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. The utility model provides a manual-automatic formula ventilation butterfly valve with supporting seat, includes valve body, valve plate, valve shaft, supporting seat and hand wheel mechanism and pneumatic actuator, its characterized in that:

2. The manual-automatic integrated ventilation butterfly valve with the supporting seat according to claim 1, characterized in that: the valve shaft connecting hole at the upper end of the valve body and the matching part of the valve shaft connecting hole at the lower end and the valve shaft are further sleeved with an O-shaped sealing ring, lubricating grease and an oil absorption pad, and the oil absorption pad is matched and fixed with the valve shaft through a straight pin.

3. The manual-automatic integrated ventilation butterfly valve with the supporting seat according to claim 1, characterized in that: the valve plate limiting block is matched with the valve shaft to control the initial position of the valve plate to be parallel to the section of the valve body, and the valve plate limiting block can only rotate to the maximum angle of 90 degrees by taking the valve shaft as a central shaft under the driving of the hand wheel mechanism or the pneumatic actuator.

4. The manual-automatic integrated ventilation butterfly valve with the supporting seat according to claim 1, characterized in that: the connecting line of the valve shaft connecting hole passes through the center of the valve body.

5. The manual-automatic integrated ventilation butterfly valve with the supporting seat according to claim 1, characterized in that: the hand wheel mechanism and the pneumatic actuator are fixedly connected to a support, and the support is fixedly connected with the front support seat through a bolt.