CN220168588U

CN220168588U - Flushing-resistant quick cut-off butterfly valve

Info

Publication number: CN220168588U
Application number: CN202321110130.1U
Authority: CN
Inventors: 缪震华; 吕统烈; 唐建顺; 叶国梁
Original assignee: Naisen Valve Industry Co ltd
Current assignee: Naisen Valve Industry Co ltd
Priority date: 2023-05-10
Filing date: 2023-05-10
Publication date: 2023-12-12
Anticipated expiration: 2033-05-10

Abstract

The utility model discloses a flushing-resistant quick cut-off butterfly valve which comprises a valve pipe, wherein a fixed seat is fixedly arranged at the top of the valve pipe, a valve rod is rotatably arranged in the fixed seat, a valve clack is fixedly arranged on the outer wall of the valve rod, base plates are fixedly connected to the two sides of the valve clack, an inner hole is formed in the base plate, a spring is fixedly arranged in the inner hole, and one end of the spring is fixedly connected with a telescopic cylinder. This resistant quick butterfly valve that cuts off erodees drives the valve clack rotation at the valve rod and opens the butterfly valve when using, and the telescopic cylinder passes through the elasticity of spring and contracts to the hole inside, and then drives the guard plate and be close to valve clack one side, then shelter from the guard plate protection at the avris of valve clack to when the medium circulation, can reduce the erosion wear to valve clack avris through the protection of guard plate, thereby improve the resistant effect of cutting off the butterfly valve fast, avoid simultaneously to use the valve clack wearing and tearing after leading to the sealed not tight condition of butterfly valve for a long time, thereby guarantee the medium cutting effect of cutting off the butterfly valve fast.

Description

Flushing-resistant quick cut-off butterfly valve

Technical Field

The utility model relates to the technical field of butterfly valves, in particular to a flushing-resistant quick-cutting butterfly valve.

Background

The butterfly valve is also called as a flap valve, and is a regulating valve with simple structure, the butterfly valve capable of being used for controlling the opening and closing of low-pressure pipeline media is a valve in which a closing member (a valve clack or a butterfly plate) is a disc and rotates around a valve shaft to achieve opening and closing, 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, but the conventional butterfly valve has some defects in use.

The butterfly valve is commonly used for the medium that the circulation is great, and then when using the cutting off circulation of butterfly valve control circulation medium, when the parallel pipeline circulation medium of valve clack, the side of valve clack can be erodeed to the circulation medium, and because the circulation of medium is great, the circulation speed is faster to when long-term use, the side of valve clack that is erodeed can receive the scour and wear, and then the condition of not laminating the sealing ring can appear in the valve clack side in follow-up use, thereby influences the cutting off effect of butterfly valve, consequently need to propose the resistant quick cutting off butterfly valve of scour.

Disclosure of Invention

The utility model aims to provide a flushing-resistant quick-cut butterfly valve so as to solve the problem that the side of a valve clack in the background art is worn to influence sealing.

In order to achieve the above purpose, the present utility model provides the following technical solutions: the utility model provides a resistant quick cut-off butterfly valve that erodees, includes the valve pipe, the top fixed mounting of valve pipe has the fixing base, and the inside rotation of fixing base installs the valve rod, the outer wall fixed mounting of valve rod has the valve clack, and the equal fixedly connected with backing plate in both sides of valve clack, the hole has been seted up to the inside of backing plate, and the inside fixed mounting of hole has the spring, the one end fixedly connected with telescopic tube of spring, and the one end fixed mounting of telescopic tube has the guard plate.

Preferably, the valve rod is rotatably arranged in the valve pipe, the inner hole penetrates through the valve clack and is fixedly arranged in the base plate, the telescopic cylinder is elastically arranged in the base plate through a spring, and the telescopic cylinder is movably arranged in the valve clack and the base plate.

Preferably, the guard plate is arranged outside one side of the valve clack, the guard plate is of a semi-arc structure, the guard plate is elastically installed on one side of the valve clack through the telescopic cylinder and the spring, the sealing ring is fixedly installed on the inner wall of the valve pipe, and the guard plate is arranged on one side of the sealing ring in an extrusion mode.

Preferably, the top fixed mounting of fixing base has a fixed section of thick bamboo, and the internal thread of fixed section of thick bamboo installs the fastening post, the one end rotation of fastening post is connected with the cardboard, and the cardboard is "U" shape structure, the cardboard extrusion sets up the outer wall at the valve rod.

Preferably, the spacing post is installed to one side symmetry of cardboard, and the outer wall removal of spacing post is connected with the limiting plate, limiting plate fixed mounting is at the interior diapire of fixed cylinder.

Preferably, the outer wall fixedly connected with movable block of valve rod, and the movable block removes the inside that sets up at the fixed section of thick bamboo, the interior bottom wall fixedly connected with locating piece of fixed section of thick bamboo, and two the movable block is ninety degrees installs in the both sides of locating piece.

Preferably, the valve rod is rotatably arranged on one side of the positioning block, the handle is fixedly arranged at the top end of the valve rod, the valve rod is rotatably arranged inside the fixed cylinder, and the fixed cylinder is fixedly arranged at the top of the valve pipe through the fixed seat.

Compared with the prior art, the utility model has the beneficial effects that: the anti-scouring quick cut-off butterfly valve;

1. through the arrangement of the structures such as the spring, the telescopic cylinder and the protection plate, when the valve rod drives the valve clack to rotate to open the butterfly valve for use, the telescopic cylinder contracts inwards to the inner hole through the elasticity of the spring so as to drive the protection plate to approach to one side of the valve clack, and then the protection plate is shielded on the side of the valve clack, so that the scouring wear on the side of the valve clack can be reduced through the protection of the protection plate when a medium circulates, the scouring resistant effect of the quick-cut butterfly valve is improved, the condition that the butterfly valve is not tightly sealed after the valve clack is worn for a long time is avoided, and the medium cutting effect of the quick-cut butterfly valve is ensured;

2. the handle drives the valve rod to rotate, so that the valve clack is conveniently subjected to switching operation, meanwhile, the clamping plate can be extruded and clamped outside the valve rod under the limit of the limit column and the limit plate by screwing the fastening column, and then the valve rod is fixedly positioned after rotation, so that the valve clack is prevented from sliding, and the use stability of the flushing-resistant quick-cutting butterfly valve is ensured.

Drawings

FIG. 1 is a schematic diagram of the overall structure of the present utility model;

FIG. 2 is a schematic view of the use of the shield plate of the present utility model;

FIG. 3 is a schematic view of the telescopic cylinder and spring of the present utility model in a disassembled configuration;

FIG. 4 is a schematic view showing the internal structure of the fixing barrel of the present utility model;

fig. 5 is an enlarged schematic view of the structure of fig. 4 a according to the present utility model.

In the figure: 1. a valve tube; 2. a fixing seat; 3. a valve stem; 4. a valve flap; 5. a backing plate; 6. an inner bore; 7. a spring; 8. a telescopic cylinder; 9. a protection plate; 10. a seal ring; 11. a fixed cylinder; 12. a fastening post; 13. a clamping plate; 14. a limit column; 15. a limiting plate; 16. a moving block; 17. a positioning block; 18. a handle.

Detailed Description

The following description of the embodiments of the present utility model will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present utility model, but not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the utility model without making any inventive effort, are intended to be within the scope of the utility model.

Example one:

referring to fig. 1-5, the present utility model provides a technical solution: the anti-scouring quick cut-off butterfly valve comprises a valve pipe 1, a fixed seat 2 is fixedly arranged at the top of the valve pipe 1, a valve rod 3 is rotatably arranged in the fixed seat 2, a valve clack 4 is fixedly arranged on the outer wall of the valve rod 3, a base plate 5 is fixedly connected to two sides of the valve clack 4, the valve rod 3 is rotatably arranged in the valve pipe 1, an inner hole 6 penetrates through the valve clack 4 and is fixedly arranged in the base plate 5, a telescopic cylinder 8 is elastically arranged in the base plate 5 through a spring 7, and the telescopic cylinder 8 is movably arranged in the valve clack 4 and the base plate 5;

an inner hole 6 is formed in the base plate 5, a spring 7 is fixedly arranged in the inner hole 6, one end of the spring 7 is fixedly connected with a telescopic cylinder 8, one end of the telescopic cylinder 8 is fixedly provided with a protection plate 9, the protection plate 9 is arranged outside one side of the valve clack 4, the protection plate 9 is of a semi-arc structure, the protection plate 9 is elastically arranged on one side of the valve clack 4 through the telescopic cylinder 8 and the spring 7, a sealing ring 10 is fixedly arranged on the inner wall of the valve pipe 1, and the protection plate 9 is arranged on one side of the sealing ring 10 in an extrusion mode;

when the valve rod 3 drives the valve clack 4 to rotate to open the butterfly valve for use, the telescopic cylinder 8 contracts towards the inner hole 6 through the elastic force of the spring 7, and then drives the protection plate 9 to approach to one side of the valve clack 4, and then the protection plate 9 is shielded on the side of the valve clack 4, so that when a medium circulates, the scouring abrasion to the side of the valve clack 4 can be reduced through the protection of the protection plate 9, the scouring resistant effect of the quick-cut butterfly valve is improved, meanwhile, the condition that the butterfly valve is not tightly sealed after the valve clack 4 is worn after long-term use is avoided, and the medium cutting effect of the quick-cut butterfly valve is ensured;

when the valve clack 4 rotates to enter the inner side of the sealing ring 10, the protection plate 9 is extruded by the sealing ring 10 to move outwards, so that the telescopic cylinder 8 pulls the spring 7 to move the telescopic cylinder 8 out of the inner hole 6, the protection plate 9 is conveniently placed on one side of the sealing ring 10, the sealing of the valve clack 4 and the sealing ring 10 is prevented from being influenced by the use of the protection plate 9, and the sealing use of the butterfly valve is ensured;

example two:

on the basis of the first example, in order to ensure the positioning of the valve clack 4 and ensure the sealing effect of the butterfly valve, referring to fig. 4 and 5, a fixed cylinder 11 is fixedly arranged at the top of the fixed seat 2, a fastening column 12 is arranged in the internal thread of the fixed cylinder 11, one end of the fastening column 12 is rotatably connected with a clamping plate 13, the clamping plate 13 is in a U-shaped structure, the clamping plate 13 is arranged on the outer wall of the valve rod 3 in an extrusion manner, one side of the clamping plate 13 is symmetrically provided with a limiting column 14, the outer wall of the limiting column 14 is movably connected with a limiting plate 15, and the limiting plate 15 is fixedly arranged on the inner bottom wall of the fixed cylinder 11;

the outer wall of the valve rod 3 is fixedly connected with a moving block 16, the moving block 16 is movably arranged in the fixed cylinder 11, the inner bottom wall of the fixed cylinder 11 is fixedly connected with a positioning block 17, the two moving blocks 16 are installed on two sides of the positioning block 17 at ninety degrees, the valve rod 3 is rotatably arranged on one side of the positioning block 17, the top end of the valve rod 3 is fixedly provided with a handle 18, the valve rod 3 is rotatably installed in the fixed cylinder 11, and the fixed cylinder 11 is fixedly installed on the top of the valve pipe 1 through a fixed seat 2;

through twisting the fastening post 12, can be with cardboard 13 under spacing post 14 and limiting plate 15's spacing, with cardboard 13 extrusion block in the outside of valve rod 3, and then make valve rod 3 carry out fixed location after rotatory to avoid valve clack 4 to appear sliding the condition, make the stability that guarantees the resistant quick cut-off butterfly valve of washing out use, and through the setting of movable block 16 and locating piece 17, conveniently fix a position valve rod 3 when rotatory, thereby conveniently drive valve clack 4 and reciprocate ninety degrees rotatory uses.

Working principle: when the flushing-resistant quick cut-off butterfly valve is used, the handle 18 is held by a hand to rotate the valve rod 3, so that the moving block 16 is driven to move, and after the moving block 16 is moved to one side of the positioning block 17, the valve rod 3 drives the valve clack 4 to rotate ninety degrees, so that the butterfly valve is opened for use;

then screwing the fastening column 12 into the fixed cylinder 11, pushing the clamping plate 13 to move towards the valve rod 3 by the fastening column 12, further enabling the limiting column 14 to move in the limiting plate 15 to limit the clamping plate 13, and then clamping and fixing the clamping plate 13 outside the valve rod 3, so that the valve rod 3 and the valve clack 4 are positioned;

the protection plate 9 moves away from one side of the sealing ring 10 while the valve rod 3 rotates, so that the extrusion of the sealing ring 10 to the protection plate 9 is removed, the spring 7 pulls the telescopic cylinder 8 to the inner side of the inner hole 6 through self elasticity, and then the protection plate 9 is driven to move to one side of the valve clack 4 through the telescopic cylinder 8, so that the protection plate 9 covers the flushing side of the valve clack 4, and the side of the valve clack 4 is protected through the protection plate 9 when a medium circulates;

and when closing the butterfly valve, remove the fastening post 12 to the outside of fixed section of thick bamboo 11, and then make cardboard 13 withdraw the extrusion spacing to valve rod 3, then rotate valve rod 3, and valve clack 4 rotates and get into sealing ring 10 inboard, and then extrude sealing valve clack 4 and sealing ring 10, and guard plate 9 when valve clack 4 gets into sealing ring 10 inboard, guard plate 9 is moved to the outside by sealing ring 10 extrusion, and then make telescopic section of thick bamboo 8 pull spring 7 with telescopic section of thick bamboo 8 shift out inside the hole 6.

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

Claims

1. The utility model provides a resistant quick shutoff butterfly valve that erodees, includes valve pipe (1), its characterized in that: the top fixed mounting of valve pipe (1) has fixing base (2), and the inside rotation of fixing base (2) installs valve rod (3), the outer wall fixed mounting of valve rod (3) has valve clack (4), and the equal fixedly connected with backing plate (5) in both sides of valve clack (4), hole (6) have been seted up to the inside of backing plate (5), and the inside fixed mounting of hole (6) has spring (7), the one end fixedly connected with telescopic cylinder (8) of spring (7), and the one end fixed mounting of telescopic cylinder (8) has guard plate (9).

2. The flushing-resistant quick-cut-off butterfly valve according to claim 1, characterized in that the valve rod (3) is rotatably mounted inside the valve tube (1), the inner hole (6) penetrates through the inside of the valve clack (4) and is fixedly mounted inside the base plate (5), the telescopic cylinder (8) is elastically mounted inside the base plate (5) through a spring (7), and the telescopic cylinder (8) is movably arranged inside the valve clack (4) and inside the base plate (5).

3. The flushing-resistant quick-cutting butterfly valve according to claim 1, wherein the protection plate (9) is arranged outside one side of the valve clack (4), the protection plate (9) is of a semi-arc structure, the protection plate (9) is elastically installed on one side of the valve clack (4) through the telescopic cylinder (8) and the spring (7), the sealing ring (10) is fixedly installed on the inner wall of the valve pipe (1), and the protection plate (9) is arranged on one side of the sealing ring (10) in an extrusion mode.

4. The flushing-resistant quick-cutting butterfly valve according to claim 1, wherein the top of the fixed seat (2) is fixedly provided with a fixed cylinder (11), the internal thread of the fixed cylinder (11) is provided with a fastening column (12), one end of the fastening column (12) is rotatably connected with a clamping plate (13), the clamping plate (13) is of a U-shaped structure, and the clamping plate (13) is arranged on the outer wall of the valve rod (3) in an extrusion mode.

5. The flushing-resistant quick-cutting butterfly valve according to claim 4, wherein one side of the clamping plate (13) is symmetrically provided with limiting columns (14), the outer wall of each limiting column (14) is movably connected with a limiting plate (15), and the limiting plates (15) are fixedly arranged on the inner bottom wall of the fixed cylinder (11).

6. The flushing-resistant quick-cutting butterfly valve according to claim 4, wherein the outer wall of the valve rod (3) is fixedly connected with a moving block (16), the moving block (16) is movably arranged in the fixed cylinder (11), the inner bottom wall of the fixed cylinder (11) is fixedly connected with a positioning block (17), and the two moving blocks (16) are installed on two sides of the positioning block (17) at ninety degrees.

7. The flushing-resistant quick-cutting butterfly valve according to claim 6, wherein the valve rod (3) is rotatably arranged on one side of the positioning block (17), a handle (18) is fixedly arranged at the top end of the valve rod (3), the valve rod (3) is rotatably arranged inside the fixed cylinder (11), and the fixed cylinder (11) is fixedly arranged at the top of the valve pipe (1) through the fixed seat (2).