Gate valve plate

Abstract

The utility model relates to the technical field of gate valves, in particular to a gate valve plate which comprises a valve plate body, the lower portion of the valve plate body is semicircular, the upper portion of the valve plate body is rectangular, annular grooves are formed in the two sides of the lower portion of the valve plate body, a cavity is formed in the upper portion of the valve plate body, a lead screw is movably installed at the bottom of the cavity, and a protection frame is installed on the inner wall of the cavity in an inserted mode. The structure of the valve plate is improved, the rubber ring is easy to install and fix, the thickness of the valve plate is increased, impact and corrosion are better resisted, the service life is prolonged, the protective frame is arranged, the protective frame has a guiding effect on lifting of the valve plate, the lead screw is protected, and the service life of the lead screw is prolonged.

Description

Technical Field

[0001] The utility model relates to the technical field of gate valves, in particular to a gate valve plate. Background Art

[0002] There is a type of gate valve whose valve plate is round in shape, and a screw is installed on the top. When the screw rotates, the valve plate rises or falls. This type of valve plate has disadvantages. One is that the sealing ring is inconvenient to install, and some small valves do not even have a sealing ring installed. The other is that the screw directly faces the water flow. After long-term use, the screw thread will gradually be damaged and the service life will be shortened. Utility Model Content

[0003] The utility model aims to provide a gate valve plate to solve the problems in the above background technology that the sealing ring is inconvenient to install, the screw rod directly faces the water flow, and the screw rod thread will be gradually damaged after long-term use, thus shortening the service life.

[0004] In order to achieve the above purpose, the utility model provides the following technical solutions:

[0005] A gate valve plate comprises a valve plate, wherein the lower part of the valve plate is semicircular, the upper part of the valve plate is rectangular, annular grooves are arranged on both sides of the lower part of the valve plate, a cavity is arranged on the upper part of the valve plate, a screw rod is movably installed at the bottom of the cavity, and a mounting frame is inserted into the inner wall of the cavity.

[0006] As a further description of the above technical solution:

[0007] The cavity is rectangular.

[0008] As a further description of the above technical solution:

[0009] The protective frame is rectangular.

[0010] As a further description of the above technical solution:

[0011] The depth of the annular groove is less than 5 mm.

[0012] As a further description of the above technical solution:

[0013] The outer sides of the valve plate and the protection frame are coated with anti-rust paint.

[0014] As a further description of the above technical solution:

[0015] An edge plate is arranged on the top of the guard frame.

[0016] Compared with the prior art, the utility model provides a gate valve plate, which has the following beneficial effects:

[0017] 1. In the utility model, by improving the structure of the valve plate, it is relatively simple to install and fix the rubber ring, the thickness of the valve plate is increased, it is more resistant to impact and corrosion, and the service life is increased;

[0018] 2. In the utility model, a protective frame is provided, which guides the lifting and lowering of the valve plate and protects the screw rod, thereby increasing the service life of the screw rod. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 This is a schematic diagram of the cross-sectional structure of the utility model;

[0020] Figure 2 It is a schematic diagram of the external structure of the utility model.

[0021] Legend:

[0022] 1. Valve plate; 2. Ring groove; 3. Screw rod; 4. Guard frame. DETAILED DESCRIPTION

[0023] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model. Example

[0024] See also Figure 1-Figure 2 The utility model provides a gate valve plate, including a valve plate 1, the lower part of the valve plate 1 is semicircular, the upper part of the valve plate 1 is rectangular, annular grooves 2 are arranged on both sides of the lower part of the valve plate 1, a cavity is arranged on the upper part of the valve plate 1, a screw rod 3 is movably installed at the bottom of the cavity, and a mounting frame 4 is inserted into the inner wall of the cavity.

[0025] Specifically, Figure 1 and Figure 2 As shown, the cavity is rectangular and the protective frame 4 is rectangular, which is convenient for intercepting water.

[0026] Specifically, the depth of the annular groove 2 is less than 5 mm, and a thicker sealing ring can be installed.

[0027] Specifically, the outer sides of the valve plate 1 and the protective frame 4 are coated with anti-rust paint to extend the service life.

[0028] Specifically, Figure 1 and Figure 2 As shown, an edge plate is provided on the top of the guard frame 4 to facilitate welding and fixing of the guard frame 4.

[0029] Working principle:

[0030] During installation, the top of the protective frame 4 is welded and fixed to the top of the valve shell, and the protective frame 4 is inserted into the cavity position of the valve plate 1. When the screw rod 3 rotates, it moves the valve plate 1 up and down to realize the opening and closing of the valve. The sealing ring is installed at the position of the annular groove 2, and the impact of the water flow is blocked by the protective frame 4. The screw rod 3 does not need to face the impact directly, and the service life is increased.

[0031] 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 plate, comprising a valve plate (1), characterized in that: The lower part of the valve plate (1) is semicircular in shape, the upper part of the valve plate (1) is rectangular in shape, annular grooves (2) are provided on both sides of the lower part of the valve plate (1), the upper part of the valve plate (1) is provided with a cavity, a screw rod (3) is movably installed at the bottom of the cavity, and a mounting frame (4) is inserted into the inner wall of the cavity.

2. A gate valve plate according to claim 1, characterized in that: The cavity is rectangular.

3. The gate valve plate according to claim 1, characterized in that: The protective frame (4) is rectangular.

4. A gate valve plate according to claim 1, characterized in that: The depth of the annular groove (2) is less than 5 mm.

5. The gate valve plate according to claim 1, characterized in that: The outer sides of the valve plate (1) and the protective frame (4) are coated with anti-rust paint.

6. The gate valve plate according to claim 1, characterized in that: The top of the protective frame (4) is provided with an edge plate.

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