CN215989093U

CN215989093U - Quick-assembly type explosion-proof valve

Info

Publication number: CN215989093U
Application number: CN202121114935.4U
Authority: CN
Inventors: 何婉婷; 徐晓燕; 陈丽; 余祖停
Original assignee: Wuhan Meilin Environmental Protection Science & Technology Co ltd
Current assignee: Wuhan Meilin Environmental Protection Science & Technology Co ltd
Priority date: 2021-05-24
Filing date: 2021-05-24
Publication date: 2022-03-08
Anticipated expiration: 2031-05-24

Abstract

The utility model discloses a quick-assembly type explosion-proof valve which comprises a valve body and a pneumatic actuator, wherein a valve rod penetrates through the center inside the valve body, a flexible graphite packing layer is sleeved at the top of the outer side wall of the valve rod, a support is attached to the top of the valve body, the support and the flexible graphite packing layer are fixedly connected through a hexagon nut and a stud, a packing gland is attached to the middle part of the upper surface of the support, the packing gland is fixedly connected with the support through an outer hexagon bolt, and the top of the packing gland is communicated with the pneumatic actuator; through set up flexible graphite packing layer in the inside of valve body, when starting executor drive valve rod during operation, flexible graphite packing layer can improve sealed effect, prevents gas leakage, simultaneously, can be high temperature resistant, corrosion-resistant, stand wear and tear, reaches the effect that is applicable to multiple operational environment.

Description

Quick-assembly type explosion-proof valve

Technical Field

The utility model relates to the technical field of explosion-proof valves, in particular to a quick-assembly explosion-proof valve.

Background

However, the quick-mounting explosion-proof valve is often applied to transportation of high-temperature gas or liquid, or transportation of corrosive media and the like in the use process, and the conventional quick-mounting explosion-proof valve has poor high-temperature resistance and is not suitable for transportation of the corrosive media in the use process, so that the quick-mounting explosion-proof valve is provided.

SUMMERY OF THE UTILITY MODEL

The utility model aims to provide a quick-assembly type explosion-proof valve to solve the problems in the background technology.

In order to achieve the purpose, the utility model provides the following technical scheme: quick-mounting explosion-proof valve, including valve body and pneumatic actuator, the inside center department of valve body runs through there is the valve rod, the lateral wall top cover of valve rod is equipped with flexible graphite packing layer, the top laminating of valve body has the support, the support with flexible graphite packing layer passes through hexagon nut and stud fixed connection, the laminating of the upper surface middle part of support has gland, gland with the support is through outer hexagon bolt fixed connection, gland's top intercommunication has pneumatic actuator.

As further preferable in the present technical solution: the inside middle part of valve body is equipped with the clamp plate, the lateral wall laminating of clamp plate the inside wall of valve body, the clamp plate with the valve rod passes through second hexagon socket head cap screw fixed connection.

As further preferable in the present technical solution: and a spring washer is arranged on one side of the adjacent surface of the hexagon nut and the bracket, and the outer side wall of the stud is sleeved with the spring washer.

As further preferable in the present technical solution: one side of the outer side wall of the valve rod, which is far away from the pressure plate, is fixedly connected with a butterfly plate through a cylindrical pin.

As further preferable in the present technical solution: the inside of clamp plate is equipped with the sealing washer, the sealing washer cover is located the lateral wall of valve rod.

As further preferable in the present technical solution: the lower surface of valve body is through first hexagon socket head cap screw fixedly connected with bottom, the lateral wall cover of first hexagon socket head cap screw is equipped with the gasket, the inside diapire fixedly connected with of valve body is to opening the ring.

Compared with the prior art, the utility model has the beneficial effects that: through set up flexible graphite packing layer in the inside of valve body, when starting executor drive valve rod during operation, flexible graphite packing layer can improve sealed effect, prevents gas leakage, simultaneously, can be high temperature resistant, corrosion-resistant, stand wear and tear, reaches the effect that is applicable to multiple operational environment.

Drawings

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

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

FIG. 3 is an enlarged view of the structure of the area A in FIG. 1 according to the present invention.

In the figure: 1. a bottom cover; 2. a first socket cap head screw; 3. a gasket; 4. the circular rings are split; 5. a valve body; 6. a valve stem; 7. a butterfly plate; 8. a second socket cap head screw; 9. pressing a plate; 10. a cylindrical pin; 11. a seal ring; 12. a flexible graphite packing layer; 13. a support; 14. a spring washer; 15. a hexagonal nut; 16. a stud; 17. a packing gland; 18. an outer hexagon bolt; 20. and a pneumatic actuator.

Detailed Description

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, 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 invention.

Examples

Referring to fig. 1-3, the present invention provides a technical solution: quick-mounting explosion-proof valve, including valve body 5 and pneumatic actuator 20, the inside center department of valve body 5 runs through there is valve rod 6, the lateral wall top cover of valve rod 6 is equipped with flexible graphite packing layer 12, the top laminating of valve body 5 has support 13, support 13 passes through hexagon nut 15 and stud 16 fixed connection with flexible graphite packing layer 12, the laminating of the upper surface middle part of support 13 has gland 17, gland 17 passes through outer hexagon bolt 18 fixed connection with support 13, gland 17's top intercommunication has pneumatic actuator 20.

In this embodiment, specifically: a pressing plate 9 is arranged in the middle of the interior of the valve body 5, the outer side wall of the pressing plate 9 is attached to the inner side wall of the valve body 5, and the pressing plate 9 and the valve rod 6 are fixedly connected through a second inner hexagonal socket head cap screw 8; through the setting, can be convenient for fix clamp plate 9 at the lateral wall of valve rod 6, and the lateral wall laminating valve body 5's of clamp plate 9 inside wall can avoid the not good condition of leakproofness to appear.

In this embodiment, specifically: a spring washer 14 is arranged on one side of the adjacent surface of the hexagon nut 15 and the bracket 13, and the outer side wall of the stud 16 is sleeved with the spring washer 14; by sleeving the spring washer 14 on the outer side wall of the stud 16, certain elastic potential energy can be provided when the bracket 13 and the valve body 5 are fixed, and the outer surface of the valve body 5 is protected from being damaged by friction force.

In this embodiment, specifically: one side of the outer side wall of the valve rod 6, which is far away from the pressure plate 9, is fixedly connected with a butterfly plate 7 through a cylindrical pin 10; through the above arrangement, the butterfly plate 7 is convenient to install.

In this embodiment, specifically: a sealing ring 11 is arranged inside the pressure plate 9, and the outer side wall of the valve rod 6 is sleeved with the sealing ring 11; by providing the seal ring 11, the sealing effect between the pressure plate 9 and the valve rod 6 can be increased.

In this embodiment, specifically: the lower surface of the valve body 5 is fixedly connected with a bottom cover 1 through a first inner hexagonal socket head cap screw 2, a gasket 3 is sleeved on the outer side wall of the first inner hexagonal socket head cap screw 2, and a split ring 4 is fixedly connected with the inner bottom wall of the valve body 5; through the arrangement, the bottom cover 1 can be conveniently fixed on the lower surface of the valve body 5, so that the bottom cover 1 can be conveniently and quickly detached to maintain the valve body 5.

According to the working principle or the structural principle, the bottom cover 1 is fixed on the lower surface of the valve body 5 through the first inner hexagonal socket head cap screw 2, then the flexible graphite packing layer 12 is filled above the inner part of the valve body 5 and is positioned on the outer side of the valve rod 6, then the support 13 is fixed through the double-end stud 16 in cooperation with the hexagon nut 15, then the packing cover 17 is covered, the flexible graphite packing layer 12 is sealed, the flexible graphite packing layer 12 is prevented from leaking, when the flexible graphite packing layer is used, the valve rod 6 is controlled to rotate through the pneumatic actuator 20, the pressing plate 9 is driven to rotate, the valve body 5 is opened or closed, the sealing effect between the pressing plate 9 and the valve rod 6 is improved through the matching of the sealing ring 11 on the pressing plate 9, the spring washer 14 is sleeved on the outer side wall of the double-end stud 16, certain elastic potential energy can be provided when the support 13 and the valve body 5 are fixed, the outer surface of the valve body 5 is protected from being damaged by friction force, through the arrangement of the sealing ring 11, can increase the sealed effect between clamp plate 9 and the valve rod 6, clamp plate 9 and valve rod 6 pass through 8 fixed connection of second hexagon socket head cap screw, can be convenient for fix clamp plate 9 at the lateral wall of valve rod 6, and the inside wall of the lateral wall laminating valve body 5 of clamp plate 9, can avoid the not good condition of leakproofness to appear.

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 utility model, the scope of which is defined in the appended claims and their equivalents.

Claims

1. Ready-package explosion-proof valve, including valve body (5) and pneumatic actuator (20), its characterized in that: the utility model discloses a pneumatic actuator, including valve body (5), valve rod (6) has been run through to the inside center department of valve body (5), the lateral wall top cover of valve rod (6) is equipped with flexible graphite packing layer (12), the top laminating of valve body (5) has support (13), support (13) with flexible graphite packing layer (12) are through hexagon nut (15) and stud (16) fixed connection, the laminating of the upper surface middle part of support (13) has gland (17), gland (17) with support (13) are through outer hexagon bolt (18) fixed connection, the top intercommunication of gland (17) has pneumatic actuator (20).

2. The quick-install explosion-proof valve of claim 1, wherein: the inside middle part of valve body (5) is equipped with clamp plate (9), the lateral wall laminating of clamp plate (9) the inside wall of valve body (5), clamp plate (9) with valve rod (6) are through second hexagon socket head cap screw (8) fixed connection.

3. The quick-fit explosion-proof valve according to claim 2, wherein: and a spring washer (14) is arranged on one side of the adjacent surface of the hexagonal nut (15) and the bracket (13), and the outer side wall of the stud (16) is sleeved with the spring washer (14).

4. The quick-fit explosion-proof valve according to claim 2, wherein: one side, far away from the pressure plate (9), of the outer side wall of the valve rod (6) is fixedly connected with a butterfly plate (7) through a cylindrical pin (10).

5. The quick-fit explosion-proof valve according to claim 2, wherein: the pressure plate (9) is internally provided with a sealing ring (11), and the outer side wall of the valve rod (6) is sleeved with the sealing ring (11).

6. The quick-install explosion-proof valve of claim 1, wherein: the lower surface of the valve body (5) is fixedly connected with a bottom cover (1) through a first inner hexagonal socket head cap screw (2), a gasket (3) is sleeved on the outer side wall of the first inner hexagonal socket head cap screw (2), and the inner bottom wall of the valve body (5) is fixedly connected with a split ring (4).