Sheet type check valve

Abstract

The utility model belongs to the technical field of check valves, and particularly relates to a sheet type check valve which comprises a valve body, a through opening is formed in the valve body, a valve plate is rotationally connected in the through opening through a rotating shaft, a limiting groove corresponding to the valve plate is formed in the inner top of the through opening, and two symmetrically-arranged pressing plate gaskets are arranged at the end, close to the rotating shaft, of the valve body. The pressing plate gasket is fixedly connected with the valve body through a fixing screw, and one side of the pressing plate gasket makes contact with the rotating shaft. The valve body can be conveniently installed and fixed through the arrangement of the lifting lugs, and meanwhile media can be conveniently guided in through the arrangement of the hemispherical protrusions. Through the arrangement of the pressing plate gasket, the fixing screw, the limiting groove and other structures, the check valve is convenient to maintain and overhaul, and therefore the maintenance convenience of the check valve is effectively improved.

Description

Technical Field

[0001] This utility model relates to the field of check valve technology, and in particular to a thin-plate check valve. Background Technology

[0002] A check valve is a type of valve whose opening and closing element is a circular valve disc, which relies on its own weight and the pressure of the medium to prevent backflow. It belongs to the category of automatic valves and is also known as a non-return valve, one-way valve, reflux valve, or isolation valve. The valve disc movement can be either lift-type or swing-type.

[0003] However, the existing check valve has a relatively complex structure, and its maintenance and repair are quite troublesome, thus affecting the ease of maintenance. Utility Model Content

[0004] The purpose of this utility model is to solve the problems mentioned in the background art, and to propose a thin-plate check valve.

[0005] To achieve the above objectives, the present invention adopts the following technical solution:

[0006] A thin-plate check valve includes a valve body with a port inside. A valve plate is rotatably connected to the port via a rotating shaft. A limiting groove corresponding to the valve plate is provided at the top of the port. Two symmetrically arranged pressure plate gaskets are provided at one end of the valve body near the rotating shaft. The pressure plate gaskets are fixedly connected to the valve body by fixing screws, and one side of the pressure plate gaskets is in contact with the rotating shaft.

[0007] Preferably, a lifting lug is fixedly connected to the top of the valve body.

[0008] Preferably, a hemispherical protrusion is provided on one side of the valve body.

[0009] Compared with the prior art, the present invention has the following beneficial effects:

[0010] The present invention utilizes a structure including a pressure plate gasket, fixing screws, and a limiting groove to facilitate the maintenance and repair of the check valve, thereby effectively improving the ease of maintenance of the check valve.

[0011] 2. The lifting lugs in this utility model facilitate the installation and fixing of the valve body, while the hemispherical protrusions facilitate the introduction of the medium. Attached Figure Description

[0012] Figure 1 This is a front view schematic diagram of the thin-plate check valve proposed in this utility model.

[0013] Figure 2 This is a rear view schematic diagram of the thin-plate check valve proposed in this utility model.

[0014] In the diagram: 1 Valve body, 2 Rotary shaft, 3 Valve plate, 4 Limit groove, 5 Pressure plate gasket, 6 Hemispherical protrusion, 7 Lifting lug. Detailed Implementation

[0015] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present utility model. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments.

[0016] Reference Figure 1-2 A thin-plate check valve includes a valve body 1, with a lifting lug 7 fixedly connected to the top of the valve body 1, and a hemispherical protrusion 6 on one side of the valve body 1 to facilitate the entry of the medium.

[0017] In this embodiment, the valve body 1 is provided with a through port, and a valve plate 3 is rotatably connected to the through port via a rotating shaft 2, which serves as a check valve; the top of the through port is provided with a limiting groove 4 corresponding to the valve plate 3, which is used to limit the rotation direction of the valve plate 3.

[0018] In this embodiment, the valve body 1 near the rotating shaft 2 is provided with two symmetrically arranged pressure plate gaskets 5 for fixing the rotating shaft 2. The pressure plate gaskets 5 are fixedly connected to the valve body 1 by fixing screws, and one side of the pressure plate gaskets 5 is in contact with the rotating shaft 2.

[0019] In this embodiment, the valve plate 3 can be easily installed and fixed by the fixing screws and pressure plate gasket 5, and the limiting groove 4 can limit the rotation direction of the valve plate 3.

[0020] In this embodiment, the design of the pressure plate gasket, fixing screws, and limiting groove makes the check valve easy to maintain and repair, thereby effectively improving the maintenance convenience of the check valve.

[0021] The above description is only a preferred embodiment of the present utility model, but the protection scope of the present utility model is not limited thereto. Any equivalent substitutions or changes made by those skilled in the art within the technical scope disclosed in the present utility model, based on the technical solution and the inventive concept of the present utility model, should be included within the protection scope of the present utility model.

Claims

1. A thin plate check valve comprising a valve body (1), characterized in that: The valve body (1) is internally provided with a through hole, the through hole is rotationally connected with a valve plate (3) through a rotating shaft (2), the inner top of the through hole is provided with a limiting groove (4) corresponding to the valve plate (3), one end of the valve body (1) close to the rotating shaft (2) is provided with two symmetrically arranged pressing plate gaskets (5), the pressing plate gaskets (5) are fixedly connected with the valve body (1) through fixing screws, and one side of the pressing plate gaskets (5) is in contact with the rotating shaft (2).

2. The flapper check valve of claim 1, wherein: The top of the valve body (1) is fixedly connected with a lifting lug (7).

3. The flapper check valve of claim 1, wherein: One side of the valve body (1) is provided with a hemispherical protrusion (6).

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