CN215172303U

CN215172303U - Novel pneumatic butterfly valve

Info

Publication number: CN215172303U
Application number: CN202120598208.3U
Authority: CN
Inventors: 范艺豪
Original assignee: Yingruopai Shanghai Fluid Technology Co ltd
Current assignee: Yingruopai Shanghai Fluid Technology Co ltd
Priority date: 2021-03-24
Filing date: 2021-03-24
Publication date: 2021-12-14
Anticipated expiration: 2031-03-24

Abstract

The utility model discloses a novel pneumatic butterfly valve, which comprises a valve pipe, wherein the upper end of the valve pipe is communicated and connected with a supporting pipe, a valve block is arranged on the periphery of the inside of the valve pipe, the lower end of the valve pipe is rotatably connected with a valve rod, a valve plate is arranged outside the valve rod and inside the valve block, a first sealing ring and a second sealing ring are arranged on the periphery of the outside of the valve plate, the upper end of the supporting pipe is connected with a pneumatic actuator main body through a bolt, the upper end and the lower end of the middle position of the inside of the pneumatic actuator main body are rotatably connected with a power rod through a sealing rotating shaft, a piston cavity is arranged inside the pneumatic actuator main body, pneumatic pistons are symmetrically arranged inside the piston cavity and at the upper end and the lower end of the power rod, a first quick socket and a second quick socket are respectively arranged on the left and right symmetry of the middle position of the front surface of the pneumatic actuator main body, and the abrasion to the sealing washer is reduced in the opening and closing process, thereby ensuring that the sealing performance of the pneumatic butterfly valve is good.

Description

Novel pneumatic butterfly valve

Technical Field

The utility model relates to a pneumatic butterfly valve technical field, concrete field is a novel pneumatic butterfly valve.

Background

Pneumatic butterfly valve comprises pneumatic actuator and butterfly valve, and pneumatic butterfly valve is with doing the opening and close nature along with valve rod pivoted circular butterfly plate to the pneumatic valve that the action was launched in the realization mainly is done and is cut off the valve and use, also designs into to have the function of adjusting or section valve and adjusting concurrently, and the use of butterfly valve on the big well bore pipeline of low pressure is more and more, and pneumatic butterfly valve is categorised: the stainless steel pneumatic butterfly valve, the hard seal pneumatic butterfly valve, the soft seal pneumatic butterfly valve, the carbon steel pneumatic butterfly valve and the main advantages of the pneumatic butterfly valve have the advantages of simple structure, small volume, light weight and low manufacturing cost, the pneumatic butterfly valve has the characteristics of particular significance, can be installed in a high-altitude blind way, is convenient to operate through the control of a two-position five-way electromagnetic valve, can also adjust a flow medium, adopts compressed air as a power source, has high pressure resistance and good sealing property, is very energy-saving and environment-friendly in control process, effectively improves the working efficiency, and can also realize automatic control, however, the stainless steel valve plate of the traditional pneumatic butterfly valve can cause abrasion to the sealing washer in the opening and closing process, the inner diameter of the sealing washer can be enlarged under the long-time rotation, therefore, the sealing performance of the pneumatic butterfly valve is reduced, and the traditional sealing washer is of an integral structure, so that the sealing performance is not good enough.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide a novel pneumatic butterfly valve to the valve plate of the stainless steel material who provides but traditional pneumatic butterfly valve in solving above-mentioned background art can lead to the fact wearing and tearing to seal ring at the in-process that opens and shuts, can make seal ring's internal diameter enlarge under long-time rotation, thereby the leakproofness of the pneumatic butterfly valve who makes reduces, and traditional seal ring is overall structure, makes the not good enough problem of sealing performance.

In order to achieve the above object, the utility model provides a following technical scheme: a novel pneumatic butterfly valve comprises a valve pipe, wherein the upper end of the valve pipe is connected with a supporting pipe in a communicating manner, the outer edges of the front surface and the rear surface of the valve pipe are provided with connecting edges, the front end and the rear end of the connecting edges are connected with a pipeline through bolts, a valve block is arranged on the periphery of the inside of the valve pipe, the lower end of the valve pipe is rotatably connected with a valve rod through a sealing rotating shaft, the upper end of the valve rod penetrates through the supporting pipe, a valve plate is arranged outside the valve rod and inside the valve block, a first sealing ring and a second sealing ring are symmetrically connected with the front end and the rear end of the outer periphery of the valve plate and the position of the valve block in contact through bolts, a connecting ring is arranged on the periphery of the outer edge of the upper end of the supporting pipe, the upper end of the connecting ring is connected with a pneumatic actuator main body through bolts, and the upper end and the lower end of the middle position inside the pneumatic actuator main body are rotatably connected with a power rod through the sealing rotating shaft, the pneumatic actuator is characterized in that the upper end of the power rod is provided with a gear in the periphery of the inside of the pneumatic actuator main body through a connecting key, a piston cavity is arranged in the pneumatic actuator main body, pneumatic pistons are symmetrically arranged in the piston cavity at the upper end and the lower end of the power rod, a rack is arranged on the surface of the pneumatic piston contacted with the power rod, the rack is meshed with the gear, two return springs are arranged on the outer sides of the pneumatic pistons and between the pneumatic actuator main bodies, and a first quick socket and a second quick socket are respectively arranged on the left and right sides of the middle position of the front surface of the pneumatic actuator main body in a symmetrical mode.

Preferably, the valve block is a stainless steel metal ring, the outer diameter of the valve block is consistent with the inner diameter of the valve pipe, the inner surface of the valve block is a part of the metal ring tangent to the ball body, and the inner diameter of the valve body is consistent with the outer diameters of the first sealing ring and the second sealing ring.

Preferably, a first pipeline is arranged at the rear end of the first quick socket and inside the pneumatic actuator body, and the first pipeline is communicated and connected with the inside of the piston cavity and the cavity between the two pneumatic pistons.

Preferably, a second channel is formed in the rear end of the second quick socket and inside the pneumatic actuator body, and the second channel is communicated and connected with the inside of the piston cavity and the cavity at the end, far away from the two pneumatic pistons, of the two pneumatic pistons.

Preferably, the upper end head of the valve rod is provided with a square connecting protruding head, the lower end head of the power rod is provided with a square connecting concave head, the connecting protruding head is clamped inside the connecting concave head, and the valve rod and the power rod are clamped with the connecting concave head through the connecting protruding head.

Compared with the prior art, the beneficial effects of the utility model are that: the utility model provides a novel pneumatic butterfly valve, adopt the inside valve block that sets up of valve pipe, and connect the valve plate through the valve rod in the valve block, set up a sealing washer and No. two sealing washers in the outside a week of valve plate, pass through the design of connecting pipe connection pneumatic actuator main part in valve pipe upper end, replace traditional pneumatic butterfly valve stainless steel's valve plate, set up the sealing washer in the outside a week of valve plate, reduce the wearing and tearing that lead to the fact sealing washer opening and shutting the in-process, long-time rotation is down to guarantee that sealing washer's internal diameter size is certain, thereby guarantee that pneumatic butterfly valve's leakproofness is good, decompose traditional sealing washer into two parts, make sealing performance better.

Drawings

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

FIG. 2 is a left side view of the main structure of the present invention;

FIG. 3 is a schematic top view of the valve tube structure of the present invention;

FIG. 4 is a top cross-sectional view of the valve tube structure of the present invention;

fig. 5 is a top cross-sectional view of the main structure of the pneumatic actuator of the present invention.

In the figure: the pneumatic control valve comprises a valve pipe 1, a valve pipe 2, a support pipe 3, a connecting edge 4, a pipeline 5, a valve block 6, a valve rod 7, a valve plate 8, a first sealing ring 9, a second sealing ring 10, a connecting ring 11, a pneumatic actuator main body 12, a power rod 12, a gear 13, a piston cavity 14, a pneumatic piston 15, a rack 16, a reset spring 17, a quick socket 18, a quick socket 19 and a quick socket II.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.

Referring to fig. 1-5, the present invention provides a technical solution: a novel pneumatic butterfly valve comprises a valve pipe 1, wherein the upper end of the valve pipe 1 is connected with a supporting pipe 2 in a communicating manner, the outer edge of the front surface and the outer edge of the rear surface of the valve pipe 1 are provided with connecting edges 3, the front end and the rear end of each connecting edge 3 are connected with a pipeline 4 through bolts, a valve block 5 is arranged on the periphery of the inner part of the valve pipe 1, the lower end of the valve pipe 1 is rotatably connected with a valve rod 6 through a sealing rotating shaft, the upper end of the valve rod 6 penetrates through the supporting pipe 2, a valve plate 7 is arranged outside the valve rod 6 and inside the valve block 5, a first sealing ring 8 and a second sealing ring 9 are symmetrically arranged on the periphery of the outer side of the valve plate 7 and in contact with the valve block 5 through bolts, the first sealing ring 8 and the second sealing ring 9 are arranged outside the valve plate 7, the valve plate 7 and the valve block 5 are sealed, the valve rod 6 is driven to rotate through a power rod 12, a connecting ring 10 is arranged on the outer edge of the periphery of the upper end of the supporting pipe 2, the upper end of the connecting ring 10 is connected with a pneumatic actuator main body 11 through a bolt, the upper end and the lower end of the middle position inside the pneumatic actuator main body 11 are rotatably connected with a power rod 12 through a sealing rotating shaft, the upper end of the power rod 12 and the periphery inside the pneumatic actuator main body 11 are provided with a gear 13 through a connecting key, a piston cavity 14 is arranged inside the pneumatic actuator main body 11, pneumatic pistons 15 are symmetrically arranged inside the piston cavity 14 and at the upper end and the lower end of the power rod 12, a rack 16 is arranged on the surface of the pneumatic piston 15, which is in contact with the power rod 12, the rack 16 is meshed with the gear 13, a return spring 17 is arranged between the outer sides of the two pneumatic pistons 15 and the pneumatic actuator main body 11, and a first quick socket 18 and a second quick socket 19 are respectively arranged at the middle position of the front surface of the pneumatic actuator main body 11 in a bilateral symmetry manner, compressed gas enters the piston cavity 14 through the first quick insertion opening 18, two pneumatic pistons 15 do work in opposite directions, the power rod 12 is driven to rotate through the meshing of the gear 13 and the rack 16, and the valve rod 6 is driven to rotate through clamping.

Particularly, valve block 5 is stainless steel material metal ring, the external diameter of valve block 5 with the internal diameter of valve pipe 1 is unanimous, the internal surface of valve block 5 is the partly that the metal ring is tangent with the spheroid, the internal diameter of valve body 5 with a sealing washer 8 reaches No. two sealing washers 9's external diameter is unanimous for sealed effect is better.

Specifically, a first pipe is opened at the rear end of the first quick insertion opening 18 and inside the pneumatic actuator body 11, and the first pipe is connected to the inside of the piston cavity 14 and the cavity between the two pneumatic pistons 15.

Specifically, a second channel is opened at the rear end of the second quick insertion opening 19 and inside the pneumatic actuator body 11, and the second channel is connected to the inside of the piston cavity 14 and the cavity at the end of the two pneumatic pistons 15 away from each other in a communicating manner.

Specifically, the upper end head of valve rod 6 is equipped with the protruding head is connected to the square, the lower end head of power rod 12 is equipped with the concave head is connected to the square, connect the protruding head joint to connect the inside of concave head, valve rod 6 with power rod 12 is through connecting the protruding head and connecting concave head joint, through connecting the protruding head and connecting the joint of concave head, with power rod 12's power transmission to valve rod 6 on.

The working principle is as follows: the utility model discloses an inside valve block 5 that sets up of valve pipe 1, and connect valve plate 7 through valve rod 6 in valve block 5, set up a sealing washer 8 and No. two sealing washers 9 in 7 outside a week of valve plate, the design of pneumatic actuator main part 11 is connected through stay tube 2 in 1 upper end of valve pipe, during the use, set up a sealing washer 8 and No. two sealing washers 9 through 7 outsides of valve plate, seal between valve plate 7 and valve block 5, compressed gas enters into piston chamber 14 inside through a fast socket 18, do work with two pneumatic pistons 15 to opposite direction, through the meshing of gear 13 and rack 16, it is rotatory to drive power rod 12, it rotates to drive valve rod 6 through the joint.

In the description of the present invention, unless expressly stated or limited otherwise, the terms "mounted," "connected," and "fixed" are to be construed broadly, e.g., as meaning either a fixed connection, a removable connection, or an integral part; can be mechanically or electrically connected; either directly or indirectly through intervening media, either internally or in any other relationship. The specific meaning of the above terms in the present invention can be understood in specific cases to those skilled in the art.

The utility model discloses the standard part that uses all can purchase from the market, and dysmorphism piece all can be customized according to the record of description and attached drawing, and the concrete connection mode of each part all adopts conventional means such as ripe bolt, rivet, welding among the prior art, and machinery, part and equipment all adopt prior art, and conventional model is including the conventional connected mode of circuit connection adoption conventional among the prior art, and here detailed description is not again.

Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.

Claims

1. The utility model provides a novel pneumatic butterfly valve, includes valve pipe (1), its characterized in that: the upper end of the valve pipe (1) is connected with a supporting pipe (2) in a communicating manner, the front surface and the rear surface of the valve pipe (1) are provided with a connecting edge (3) at the outer edge, two ends of the connecting edge (3) are connected with a pipeline (4) at the front end and the rear end through bolts, a valve block (5) is arranged around the valve pipe (1), the lower end of the valve pipe (1) is rotatably connected with a valve rod (6) through a sealing rotating shaft, the upper end of the valve rod (6) penetrates through the supporting pipe (2), a valve plate (7) is arranged outside the valve rod (6) and inside the valve block (5), a first sealing ring (8) and a second sealing ring (9) are symmetrically connected around the position contacted with the valve block (5) through bolts in the outer circumference of the outer side of the valve plate (7), a connecting ring (10) is arranged around the outer edge of the upper end of the supporting pipe (2), and a pneumatic main body (11) is connected with the upper end of the connecting ring (10) through bolts, the upper end and the lower end of the middle position in the pneumatic actuator main body (11) are rotationally connected with a power rod (12) through a sealing rotating shaft, a gear (13) is arranged at the upper end of the power rod (12) and on the periphery of the inner part of the pneumatic actuator main body (11) through a connecting key, a piston cavity (14) is arranged in the pneumatic actuator main body (11), pneumatic pistons (15) are symmetrically arranged in the piston cavity (14) and at the upper end and the lower end of the power rod (12), the surface of the pneumatic piston (15) contacted with the power rod (12) is provided with a rack (16), the rack (16) is meshed with the gear (13), a return spring (17) is arranged between the outer sides of the two pneumatic pistons (15) and the pneumatic actuator body (11), the middle position of the front surface of the pneumatic actuator main body (11) is symmetrically provided with a first quick socket (18) and a second quick socket (19) in a left-right mode.

2. A novel pneumatic butterfly valve according to claim 1, characterised in that: valve piece (5) are stainless steel material metal circle, the external diameter of valve piece (5) with the internal diameter of valve pipe (1) is unanimous, the internal surface of valve piece (5) is the partly that the metal circle is tangent with the spheroid, the internal diameter of valve body (5) with sealing washer (8) and the external diameter of No. two sealing washers (9) is unanimous.

3. A novel pneumatic butterfly valve according to claim 1, characterised in that: a first pipeline is arranged at the rear end of the first quick socket (18) and inside the pneumatic actuator main body (11), and the first pipeline is communicated and connected with the inside of the piston cavity (14) and a cavity between the two pneumatic pistons (15).

4. A novel pneumatic butterfly valve according to claim 1, characterised in that: the rear end of the second quick socket (19) is provided with a second channel in the pneumatic actuator main body (11), and the second channel is communicated and connected with the cavity in the piston cavity (14) and at the end, far away from the two pneumatic pistons (15).

5. A novel pneumatic butterfly valve according to claim 1, characterised in that: the upper end head of the valve rod (6) is provided with a square connecting protruding head, the lower end head of the power rod (12) is provided with a square connecting concave head, the connecting protruding head is clamped inside the connecting concave head, and the valve rod (6) and the power rod (12) are clamped with the connecting concave head through the connecting protruding head.