Gate valve casting with antifouling structure

Abstract

The utility model relates to the technical field of gate valve castings, in particular to a gate valve casting with an anti-fouling structure, which comprises a gate valve casting body, an anti-fouling mechanism is arranged in the gate valve casting body, and an anti-corrosion strip is fixedly connected to the outer wall of the gate valve casting body. The antifouling mechanism comprises a mounting frame fixedly connected to the interior of the gate valve casting body, a filter screen is slidably connected to the inner wall of the mounting frame, a blow-off pipe is fixedly connected to the position, below the filter screen, in the gate valve casting body, and a sealing screw is in threaded connection to the inner wall of the blow-off pipe; the gate valve casting with the anti-fouling structure is designed, impurities are prevented from entering through the anti-fouling mechanism in the device, and the problems that an existing gate valve casting cannot prevent impurities in fluid from entering, and the service life of the gate valve casting is prolonged are solved. And the entering sundries are easy to influence the normal use of the gate valve casting.

Description

Technical Field

[0001] The utility model relates to the technical field of gate valve castings, in particular to a gate valve casting with an anti-fouling structure. Background Art

[0002] The gate valve is an opening and closing component, the movement direction of the gate is perpendicular to the direction of the fluid. The gate valve can only be fully opened and fully closed, and cannot be adjusted or throttled. The gate valve is sealed by the contact between the valve seat and the gate, but the existing gate valve castings still have shortcomings. Specifically, the existing gate valve castings cannot prevent the entry of debris in the fluid, and the entered debris is likely to affect the normal use of the gate valve castings.

[0003] Therefore, a gate valve casting with an anti-fouling structure is needed to solve the problems raised in the above background technology. Utility Model Content

[0004] The utility model aims to provide a gate valve casting with an anti-fouling structure to solve the problems raised in the above background technology.

[0005] In order to achieve the above purpose, the utility model provides the following technical solutions:

[0006] A gate valve casting with an anti-fouling structure comprises a gate valve casting body, an anti-fouling mechanism is arranged inside the gate valve casting body, and an anti-corrosion strip is fixedly connected to the outer wall of the gate valve casting body;

[0007] The anti-fouling mechanism includes a mounting frame fixedly connected to the inside of the gate valve casting body, the inner wall of the mounting frame is slidably connected with a filter screen, a drain pipe is fixedly connected to the inside of the gate valve casting body and below the filter screen, the inner wall of the drain pipe is threadedly connected with a sealing screw, the outer wall of the sealing screw is fixedly connected with a sealing ring below the drain pipe, the outer wall of the drain pipe is fixedly connected with a sealing strip near the sealing screw, an impact rod is slidably connected to the top of the gate valve casting body and directly above the mounting frame, a reset spring is fixedly connected to the outer wall of the impact rod and inside the gate valve casting body, and a pull rod is fixedly connected to the top of the impact rod and outside the gate valve casting body.

[0008] As a preferred solution of the utility model, the anti-fouling mechanism is provided with two groups, and the anti-corrosion strips are made of zinc alloy.

[0009] As a preferred solution of the utility model, the mounting frame, drain pipe, impact rod and pull rod are all made of aluminum alloy, the shape of the mounting frame is compatible with the shape of the inner wall of the gate valve casting body, and the connection between the reset spring and the gate valve casting body is a fixed connection.

[0010] As a preferred solution of the utility model, the filter screen is made of stainless steel wire mesh, the mounting frame and the filter screen are both obliquely mounted in the gate valve casting body, and the drain pipe and the impact rod both penetrate and extend outside the gate valve casting body.

[0011] As a preferred solution of the utility model, the sealing ring is made of silicone, and the sealing screw penetrates and extends to the outside of the sewage pipe.

[0012] As a preferred solution of the utility model, the sealing strip is made of hot melt adhesive, and the return spring is provided in multiple groups.

[0013] Compared with the prior art, the beneficial effects of the utility model are:

[0014] 1. In the utility model, a gate valve casting with an anti-fouling structure is designed, and the anti-fouling mechanism in the device is used to prevent debris from entering. When the fluid flows into the gate valve casting body, the fluid will first pass through the filter screen in the mounting frame, and the filter screen will intercept the debris in the fluid. The debris cannot flow through the gate valve casting body with the fluid, and the debris will not accumulate in the center of the gate valve casting body. The opening and closing of the gate installed in the gate valve casting body will not be affected by the debris, which solves the problem that the existing gate valve casting cannot prevent the entry of debris in the fluid, and the entered debris easily affects the normal use of the gate valve casting. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 It is a schematic diagram of the three-dimensional structure of the utility model;

[0016] Figure 2 It is a partial front section view of the gate valve casting body of the utility model;

[0017] Figure 3 For this utility model Figure 2 Enlarged view of point A in the middle.

[0018] In the figure: 1. gate valve casting body; 2. anti-fouling mechanism; 3. anti-corrosion strip; 201. mounting frame; 202. filter screen; 203. drain pipe; 204. sealing screw; 205. sealing ring; 206. sealing strip; 207. impact rod; 208. return spring; 209. pull rod. DETAILED DESCRIPTION

[0019] The technical solutions in the embodiments of the utility model will be clearly and completely described below in conjunction with the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, rather than all of the embodiments. Based on the embodiments of the utility model, all other embodiments obtained by ordinary technicians in this field without making creative work are within the scope of protection of the utility model.

[0020] To facilitate the understanding of the present invention, the present invention will be described more comprehensively below with reference to the relevant drawings. Several embodiments of the present invention are given. However, the present invention can be implemented in many different forms and is not limited to the embodiments described herein. On the contrary, the purpose of providing these embodiments is to make the disclosure of the present invention more thorough and comprehensive.

[0021] It should be noted that when an element is referred to as being "fixed on" another element, it may be directly on the other element or there may also be a central element. When an element is considered to be "connected to" another element, it may be directly connected to the other element or there may also be a central element. The terms "vertical", "horizontal", "left", "right" and similar expressions used in this article are for illustrative purposes only.

[0022] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by technicians in the technical field to which the present invention belongs. The terms used in the specification of the present invention are only for the purpose of describing specific embodiments and are not intended to limit the present invention. The term "and / or" used herein includes any and all combinations of one or more related listed items.

[0023] For examples, see Figure 1-3 , the utility model provides a technical solution:

[0024] A gate valve casting with an anti-fouling structure comprises a gate valve casting body 1, an anti-fouling mechanism 2 is arranged inside the gate valve casting body 1, and an anti-corrosion strip 3 is fixedly connected to the outer wall of the gate valve casting body 1;

[0025] The anti-fouling mechanism 2 is provided with two groups, and the anti-corrosion strips 3 are made of zinc alloy;

[0026] In this embodiment, reference Figure 2 and Figure 3 The anti-fouling mechanism 2 includes a mounting frame 201 fixedly connected to the inside of the gate valve casting body 1, a filter screen 202 is slidably connected to the inner wall of the mounting frame 201, a sewage pipe 203 is fixedly connected to the inside of the gate valve casting body 1 and below the filter screen 202, a sealing screw 204 is threadedly connected to the inner wall of the sewage pipe 203, a sealing ring 205 is fixedly connected to the outer wall of the sealing screw 204 and below the sewage pipe 203, a sealing strip 206 is fixedly connected to the outer wall of the sewage pipe 203 and near the sealing screw 204, a striking rod 207 is slidably connected to the top of the gate valve casting body 1 and directly above the mounting frame 201, a reset spring 208 is fixedly connected to the outer wall of the striking rod 207 and inside the gate valve casting body 1, and a pull rod 209 is fixedly connected to the top of the striking rod 207 and outside the gate valve casting body 1;

[0027] The mounting frame 201, the drain pipe 203, the impact rod 207 and the pull rod 209 are all made of aluminum alloy. The shape of the mounting frame 201 is adapted to the shape of the inner wall of the gate valve casting body 1. The reset spring 208 is connected to the gate valve casting body 1 in a fixed manner. The filter screen 202 is made of stainless steel wire mesh. The mounting frame 201 and the filter screen 202 are both obliquely installed in the gate valve casting body 1. The drain pipe 203 and the impact rod 207 both penetrate and extend to the outside of the gate valve casting body 1. The sealing ring 205 is made of silicone. The sealing screw 204 penetrates and extends to the outside of the drain pipe 203. The sealing strip 206 is made of hot melt adhesive. The reset spring 208 is provided with multiple groups. When the fluid flows into the gate valve casting body 1, the fluid will first pass through the filter screen 202 in the mounting frame 201. The filter screen 202 will intercept the debris in the fluid, and the debris cannot flow through the gate valve casting body 1 with the fluid, and the debris will not accumulate. The debris accumulates at the inner center of the gate valve casting body 1, and the opening and closing of the gate installed in the gate valve casting body 1 will not be affected by the debris. When there are too many debris attached to the filter screen 202, the gate valve casting body 1 is sealed by the gate plate, and the pull rod 209 is pulled. The pull rod 209 will drive the impact rod 207 to move upward, and then the pull rod 209 is released, and the reset spring 208 will push the impact rod 207 to move downward. The impact rod 207 moving downward will hit the mounting frame 201, and the pull rod 209 is repeatedly advanced and released, so that the impact rod 207 continuously hits the mounting frame 201, and the filter screen 202 in the mounting frame 201 vibrates under the action of external impact force. The attached debris is separated from the filter screen 202 under the action of vibration, and the sealing strip 206 is heated. The sealing strip 206 is softened by heat, and the sealing screw 204 is rotated. The rotating sealing screw 204 exits the sewage pipe 203 downward, and the debris flows out through the sewage pipe 203 with the fluid.

[0028] Working process of the utility model: when the gate valve casting with anti-fouling structure designed by the present invention is in operation, the fluid flows into the gate valve casting body 1, and the fluid will first pass through the filter screen 202 in the mounting frame 201, the filter screen 202 will intercept the debris in the fluid, the debris cannot flow through the gate valve casting body 1 with the fluid, the debris will not accumulate at the inner center of the gate valve casting body 1, the opening and closing of the gate installed in the gate valve casting body 1 will not be affected by the debris, when there are too many debris attached to the filter screen 202, the gate valve casting body 1 is sealed by the gate plate, the pull rod 209 is pulled, the pull rod 209 will drive the impact rod 207 to move upward, and then the pull rod 209 is released, the reset spring 208 will push the impact rod 207 to move downward, and the impact rod 207 moving downward will hit the mounting frame 201, and the reverse The pull rod 209 is released in advance, so that the impact rod 207 continuously impacts the mounting frame 201. The filter screen 202 in the mounting frame 201 vibrates under the action of the external impact force, and the attached debris is separated from the filter screen 202 under the action of the vibration, and the sealing strip 206 is heated and softened. The sealing screw 204 is rotated, and the rotating sealing screw 204 is downwardly withdrawn from the sewage pipe 203, and the debris flows out through the sewage pipe 203 with the fluid. After waiting for the debris to flow out completely, the sealing screw 204 is screwed back into the sewage pipe 203, and the sealing strip 206 is reheated. The sealing strip 206 is softened by heat, and the softened sealing strip 206 will block the gap between the sealing screw 204 and the sewage pipe 203. The sealing strip 206 is no longer heated, and the sealing strip 206 cools and solidifies.

[0029] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A gate valve casting with an anti-fouling structure, comprising a gate valve casting body (1), characterized in that: An anti-fouling mechanism (2) is arranged inside the gate valve casting body (1), and an anti-corrosion strip (3) is fixedly connected to the outer wall of the gate valve casting body (1); The anti-fouling mechanism (2) comprises a mounting frame (201) fixedly connected to the inside of the gate valve casting body (1); a filter screen (202) is slidably connected to the inner wall of the mounting frame (201); a sewage pipe (203) is fixedly connected to the inside of the gate valve casting body (1) and below the filter screen (202); a sealing screw (204) is threadedly connected to the inner wall of the sewage pipe (203); a sealing ring (204) is fixedly connected to the outer wall of the sealing screw (204) and below the sewage pipe (203). 05), a sealing strip (206) is fixedly connected to the outer wall of the drain pipe (203) and near the sealing screw (204), a striking rod (207) is slidably connected to the top of the gate valve casting body (1) and just above the mounting frame (201), a return spring (208) is fixedly connected to the outer wall of the striking rod (207) and inside the gate valve casting body (1), and a pull rod (209) is fixedly connected to the top of the striking rod (207) and outside the gate valve casting body (1).

2. The gate valve casting with an anti-fouling structure according to claim 1, characterized in that: The anti-fouling mechanism (2) is provided in two groups, and the anti-corrosion strip (3) is made of zinc alloy.

3. The gate valve casting with an anti-fouling structure according to claim 1, characterized in that: The mounting frame (201), the sewage pipe (203), the impact rod (207) and the pull rod (209) are all made of aluminum alloy. The shape of the mounting frame (201) is compatible with the shape of the inner wall of the gate valve casting body (1). The connection between the return spring (208) and the gate valve casting body (1) is a fixed connection.

4. The gate valve casting with an anti-fouling structure according to claim 1, characterized in that: The filter screen (202) is made of a stainless steel wire mesh, the mounting frame (201) and the filter screen (202) are both obliquely mounted inside the gate valve casting body (1), and the drain pipe (203) and the impact rod (207) both penetrate and extend outside the gate valve casting body (1).

5. The gate valve casting with an anti-fouling structure according to claim 1, characterized in that: The sealing ring (205) is made of silicone, and the sealing screw (204) penetrates and extends to the outside of the sewage pipe (203).

6. The gate valve casting with an anti-fouling structure according to claim 1, characterized in that: The sealing strip (206) is made of hot melt adhesive, and the return spring (208) is provided in multiple groups.

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