Valve seat

Abstract

The utility model discloses a valve seat which comprises a seat body, and a first outer wall face and a second outer wall face are arranged on the seat body. The distance between the first outer wall face and the second outer wall face is smaller than 3 mm. Due to the fact that the distance between the two wall faces is small, in other words, by increasing the wall thickness of the base body, the problem that due to the existence of an R angle, an existing base body is clamped on a pump body after being used for a long time, and smooth disassembly of the base body is affected is solved. In addition, although the scheme is relatively simple, due to the simple scheme, on one hand, the machining difficulty of the seat body can be reduced; the service life of the seat body can be prolonged by increasing the wall thickness; and thirdly, the problems that the pump body is damaged and the seat body is inconvenient to disassemble due to the fact that the seat body is clamped on the pump body are solved.

Description

Technical Field

[0001] The utility model relates to the technical field of pump body accessories, in particular to a valve seat. Background Technique

[0002] Particularly for stainless steel pumps, due to their anti-fatigue and corrosion-resistant characteristics, but high elongation, under long-term high pressure, plastic deformation occurs. As Figure 1 shown, due to the existence of the R angle 1 in the existing valve seat; as the valve seat is used, the valve seat will drop. When it drops to the R angle 1, the R angle 1 of the valve seat will get stuck on the pump body 2; at this time, it is extremely difficult to remove the valve seat, and even the damaged valve seat cannot be removed, resulting in the scrapping of the pump body 2. Content of the Utility Model

[0003] The purpose of the utility model is to provide a valve seat to solve the problems raised in the above background technique.

[0004] To achieve the above purpose, the utility model provides the following technical solution: a valve seat, including a seat body; a first outer wall surface and a second outer wall surface are provided on the seat body, and the distance between the first outer wall surface and the second outer wall surface is less than 3 millimeters.

[0005] As a preferred technical solution of the utility model: a sealing groove for installing a sealing ring is further provided on the second outer wall surface.

[0006] As a preferred technical solution of the utility model: each side of the sealing groove is processed with a first arc angle, and the diameter of the first arc angle is 0.5 millimeters.

[0007] As a preferred technical solution of the utility model: the connection between the first outer wall surface and the second outer wall surface is smoothly transitioned by a second arc angle provided.

[0008] As a preferred technical solution of the utility model: the diameter of the second arc angle is 1 millimeter.

[0009] As a preferred technical solution of the utility model: the distance between the first outer wall surface and the second outer wall surface is 2 millimeters.

[0010] By adopting the above technical solution, the beneficial effect of the utility model is: 1. Since the distance between the two wall surfaces is small, in other words, by increasing the wall thickness of the seat body, it is solved that the existing seat body is stuck on the pump body after long-term use due to the existence of the R angle, affecting the smooth removal of the seat body;

[0011] 2. Although this solution is relatively simple, precisely because of its simplicity, firstly, it can reduce the processing difficulty of the seat body; secondly, by increasing the wall thickness, the service life of the seat body can be extended; thirdly, it can avoid the problem that the seat body gets stuck on the pump body, resulting in damage to the pump body and inconvenience in disassembling the seat body. Brief Description of the Drawings

[0012] Figure 1 It is a schematic cross-sectional structure diagram of the existing valve seat of the present invention;

[0013] Figure 2 It is a schematic cross-sectional structure diagram of the valve seat of the present invention;

[0014] Figure 3 is Figure 2 A partial enlarged schematic diagram of the position A in

[0015] In the figure: 1, R corner; 2, seat body; 3, first outer wall surface; 4, second outer wall surface; 5, sealing groove; 6, first arc corner; 7, second arc corner. Detailed Embodiment

[0016] The following details the embodiments of the present invention. The examples of the embodiments are shown in the drawings, where the same or similar reference numerals represent the same or similar elements or elements with the same or similar functions throughout. The embodiments described below with reference to the drawings are exemplary and are intended to explain the present invention, and should not be construed as limiting the present invention. In the description of the present invention, it should be understood that the orientation or positional relationship indicated by terms such as "upper", "lower", "front", "upper surface", etc. is based on the orientation or positional relationship shown in the drawings, and is only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be construed as limiting the present invention.

[0017] Please refer to Figure 2-3 , an embodiment provided by the present invention: a valve seat, including a seat body 2; a first outer wall surface 3 and a second outer wall surface 4 are provided on the seat body 2, and the distance between the first outer wall surface 3 and the second outer wall surface 4 is less than 3 mm. Specifically, the distance between the first outer wall surface 3 and the second outer wall surface 4 is 2 mm.

[0018] To sum up, due to the small distance between the two wall surfaces, in other words, by increasing the wall thickness of the seat body 2, it solves the problem that the existing seat body gets stuck on the pump body after long-term use due to the existence of the R corner 1, affecting the smooth removal of the seat body 2; at the same time, the increase in the wall thickness of the seat body 2 delays the downward movement speed of the seat body 2, and can also improve the structural strength of the seat body 2, avoiding the problem that the outer wall surface of the seat body 2 shrinks towards the center of the circle after being stressed, resulting in the fracture of the seat body 2.

[0019] In addition, although this solution is relatively simple, precisely because of its simplicity, firstly, it can reduce the processing difficulty of the seat body; secondly, by increasing the wall thickness, the service life of the seat body can be extended; thirdly, it can avoid the problem that the seat body gets stuck on the pump body, resulting in damage to the pump body and inconvenience in disassembling the seat body.

[0020] Furthermore, since a sealing groove 5 for installing a sealing ring is also provided on the second outer wall surface 4, it is convenient for the sealing ring in the installation groove 5 to be connected to the pump body, so as to improve the sealing performance at the connection between the two.

[0021] Moreover, since each edge of the sealing groove 5 is processed with a first arc angle 6, and the diameter of the first arc angle 6 is 0.5 mm. Therefore, when the seat body 2 is installed on the pump body, there are no sharp parts, so the problem of damage to the pump body caused by the installation of the seat body 2 can be avoided. In addition, the diameter of the first arc angle 6 is set to 0.5 mm, which can ensure that the inner wall of the pump body will not be scratched while making the gap between the outer wall surface of the first arc angle 6 and the inner wall of the pump body as small as possible.

[0022] On the basis of the above solution, since the connection between the first outer wall surface 3 and the second outer wall surface 4 of the seat body 2 is smoothly transitioned by means of a second arc angle 7 provided, specifically, the diameter of the second arc angle 7 is 1 mm. Therefore, a step is formed between the first outer wall surface 3 and the second outer wall surface 4 of the seat body 2, which is convenient for a tool to be stuck on the seat body 2 to disassemble the seat body 2.

[0023] To sum up, by increasing the wall thickness, the structural strength of the seat body 2 collapsing towards the center is enhanced, so the speed of the seat body 2 moving downward can be delayed, and thus the service life of the seat body 2 can be extended. In addition, the setting of the second arc angle 7 also makes it convenient for a tool to be stuck into the seat body 2, facilitating the disassembly of the seat body 2. Based on this, although the solution is simple, it has many advantages.

[0024] The above has described the embodiments of the present invention in detail with reference to the accompanying drawings, but the present invention is not limited to the described embodiments. For those skilled in the art, without departing from the principle and spirit of the present invention, various changes, modifications, substitutions, and variations made to these embodiments still fall within the protection scope of the present invention.

Claims

1. A valve seat, characterized in that: It includes a seat body (2); a first outer wall surface (3) and a second outer wall surface (4) are provided on the seat body (2), and the distance between the first outer wall surface (3) and the second outer wall surface (4) is less than 3 mm.

2. A valve seat according to claim 1, characterized in that: A sealing groove (5) for installing a sealing ring is further provided on the second outer wall surface (4).

3. The valve seat according to claim 2, characterized in that: Each side of the sealing groove (5) is processed with a first arc angle (6), and the diameter of the first arc angle (6) is 0.5 mm.

4. A valve seat according to claim 1 or 2 or 3, characterized in that: The connection between the first outer wall surface (3) and the second outer wall surface (4) is smoothly transitioned by a second arc angle (7) provided.

5. The valve seat according to claim 4, wherein: The diameter of the second arc angle (7) is 1 mm.

6. A valve seat according to claim 5, characterized in that: The distance between the first outer wall surface (3) and the second outer wall surface (4) is 2 mm.

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