CN211039709U

CN211039709U - Leak-proof electric butterfly valve

Info

Publication number: CN211039709U
Application number: CN201921814859.0U
Authority: CN
Inventors: 徐秋明; 胡建
Original assignee: Nantong J Reliance Valves Co ltd
Current assignee: Nantong J Reliance Valves Co ltd
Priority date: 2019-10-28
Filing date: 2019-10-28
Publication date: 2020-07-17
Anticipated expiration: 2029-10-28

Abstract

The utility model discloses a formula electric butterfly valve is let out in leak protection, including case, last valve body and lower valve body, the inside of case is equipped with the butterfly plate, the welding that the preceding terminal surface of butterfly plate evenly encircles has four arcs, and the inside wall of four arcs has all welded two stoppers, what evenly encircle on the inner wall of case has seted up four and four arcs and correspond the aligned recess, and installs the cylinder in the recess, and installs fan-shaped fixture block on the telescopic link of cylinder, two spacing grooves have been seted up on the fan-shaped fixture block, and the stopper stretches into to the spacing inslot. When the butterfly valve is in a closed state, the limiting grooves on the fan-shaped clamping blocks on the telescopic rods of the butterfly valve are driven by starting the four cylinders to be matched with the limiting blocks on the arc plates, so that the stability of the closed part of the butterfly valve in the closed state can be enhanced, the leakage is avoided, the structure is simple, and the use is convenient. The sealing performance of the butterfly valve when the butterfly valve is closed can be improved due to the arrangement of the silicon rubber gasket.

Description

Leak-proof electric butterfly valve

Technical Field

The utility model relates to a butterfly valve technical field specifically is a formula electric butterfly valve is let out in leak protection.

Background

A butterfly valve, also called a flap valve, is a regulating valve with a simple structure, and can be used for on-off control of low-pressure pipeline media, namely a valve with a closing part (a valve clack or a butterfly plate) which is a disc and rotates around a valve shaft to open and close, and the valve can be used for controlling the flow of various types of fluids such as air, water, steam, various corrosive media, slurry, oil products, liquid metal, radioactive media and the like.

The existing butterfly valve has low stability of a closing part in a closing state and is easy to leak, so that an anti-leakage electric butterfly valve is provided.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide a formula electric butterfly valve is let out in leak protection to solve the problem that proposes among the above-mentioned background art.

In order to achieve the above object, the utility model provides a following technical scheme: the utility model provides a leak protection formula electric butterfly valve, includes the case, goes up the valve body and lower valve body, it welds in the top intermediate position department of case to go up the valve body, the valve body welds in the bottom intermediate position department of case down, the inside of case is equipped with the butterfly plate, and the shape of butterfly plate is circular, be equipped with the silicon rubber liner that contacts with the case inner wall on the outer circumference of butterfly plate, the welding that the preceding terminal surface of butterfly plate evenly encircles has four arcs, and the inside wall of four arcs all welds has two stoppers, set up four and four arcs and correspond aligned recess on the inner wall of case evenly encircles, and install the cylinder in the recess, and install fan-shaped fixture block on the telescopic link of cylinder, two spacing grooves have been seted up on the fan-shaped fixture block, and the stopper stretches into to the spacing inslot.

Preferably, the top of the upper valve body is fixedly provided with a support seat through a bolt and a nut, and the top of the support seat is provided with an electric actuator.

Preferably, first valve rod is installed to electric actuator's below, and first valve rod runs through the supporting seat and goes up the fixed welding of valve body at the top of butterfly plate, the welding of butterfly plate bottom intermediate position department has the second valve rod that stretches into to valve body inside down, and the lower extreme of second valve rod passes through the bearing and rotates the installation under on the valve body.

Compared with the prior art, the beneficial effects of the utility model are that: this formula electric butterfly valve is let out in leak protection, when the butterfly valve is when the closure, through starting the spacing groove on the fan-shaped fixture block of four cylinders drive its telescopic link and the stopper phase-match on the arc, can strengthen the butterfly valve and close the steadiness of piece under the closure, avoid taking place to leak, simple structure, convenient to use. The sealing performance of the butterfly valve when the butterfly valve is closed can be improved due to the arrangement of the silicon rubber gasket.

Drawings

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

fig. 2 is an enlarged schematic structural diagram of a point a in fig. 1 according to the present invention.

In the figure: 1. a valve core; 2. an upper valve body; 3. a lower valve body; 4. a silicone rubber gasket; 5. a groove; 6. a butterfly plate; 7. a supporting seat; 8. an electric actuator; 9. a first valve stem; 10. an arc-shaped plate; 11. a fan-shaped fixture block; 12. a second valve stem; 13. a cylinder; 14. a limiting block; 15. a limiting groove.

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. 1-2, the present invention provides a technical solution: an anti-leakage electric butterfly valve comprises a valve core 1, an upper valve body 2 and a lower valve body 3, wherein the upper valve body 2 is welded at the middle position of the top of the valve core 1, the lower valve body 3 is welded at the middle position of the bottom of the valve core 1, a butterfly plate 6 is arranged inside the valve core 1, the butterfly plate 6 is circular, the outer circumference of the butterfly plate 6 is provided with a silicon rubber gasket 4 which is contacted with the inner wall of the valve core 1 in the axial direction, the front end surface of the butterfly plate 6 is uniformly and circularly welded with four arc-shaped plates 10, two limiting blocks 14 are welded on the inner side walls of the four arc-shaped plates 10, four grooves 5 which are aligned with the four arc-shaped plates 10 correspondingly are uniformly arranged on the inner wall of the valve core 1 in a surrounding way, and a cylinder 13 is arranged in the groove 5, a fan-shaped fixture block 11 is arranged on the expansion link of the cylinder 13, two limiting grooves 15 are formed in the fan-shaped clamping block 11, and the limiting block 14 extends into the limiting grooves 15.

Specifically, a supporting seat 7 is fixedly installed at the top of the upper valve body 2 through a bolt and a nut, and an electric actuator 8 is installed at the top of the supporting seat 7.

Specifically, first valve rod 9 is installed to electric actuator 8's below, and first valve rod 9 runs through supporting seat 7 and the fixed welding of last valve body 2 at the top of butterfly plate 6, the welding of butterfly plate 6 bottom intermediate position department has the second valve rod 12 that stretches into to the inside of lower valve body 3, and the lower extreme of second valve rod 12 passes through the bearing rotation and installs on lower valve body 3.

During the specific use, when butterfly valve 6 is when the closure, through starting four cylinders 13 and driving spacing groove 15 on the fan-shaped fixture block 11 on its telescopic link and the stopper 14 phase-match on the arc 10, can strengthen butterfly valve 6 closure's steadiness under the closure, avoid taking place to leak, simple structure, convenient to use. The provision of the silicone rubber packing 4 can improve the sealing property of the butterfly valve 6 when closed.

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 leak protection formula electric butterfly valve, includes case (1), upper valve body (2) and lower valve body (3), its characterized in that: the upper valve body (2) is welded at the middle position of the top of the valve core (1), the lower valve body (3) is welded at the middle position of the bottom of the valve core (1), a butterfly plate (6) is arranged inside the valve core (1), the butterfly plate (6) is circular, a silicon rubber liner (4) which is in contact with the inner wall of the valve core (1) is arranged on the outer circumference of the butterfly plate (6), four arc plates (10) are welded on the front end face of the butterfly plate (6) in an evenly surrounding manner, two limiting blocks (14) are welded on the inner side walls of the four arc plates (10), four grooves (5) which are aligned with the four arc plates (10) correspondingly are formed on the inner wall of the valve core (1) in an evenly surrounding manner, an air cylinder (13) is installed in each groove (5), a fan-shaped clamping block (11) is installed on the telescopic rod of each air cylinder (13), and two limiting grooves (15) are formed on, and the limiting block (14) extends into the limiting groove (15).

2. The leakage-proof electric butterfly valve according to claim 1, wherein: the top of going up valve body (2) has supporting seat (7) through bolt and nut fixed mounting, electric actuator (8) are installed to the top of supporting seat (7).

3. The leakage-proof electric butterfly valve according to claim 2, wherein: first valve rod (9) are installed to the below of electric actuator (8), and first valve rod (9) run through supporting seat (7) and go up valve body (2) fixed welding at the top of butterfly plate (6), the welding of butterfly plate (6) bottom intermediate position department has second valve rod (12) that stretch into to valve body (3) inside down, and the lower extreme of second valve rod (12) passes through the bearing and rotates the installation on valve body (3) down.