Piston diaphragm of pneumatic fluid valve

Abstract

A pneumatic fluid valve piston diaphragm comprises a diaphragm body, the diaphragm body is in a hollow circular ring shape, a circle of annular boss is arranged on the periphery of the hollow part, a circle of diaphragm outer wall inclining outwards is arranged on the edge of the diaphragm body, and an annular groove is formed between the diaphragm outer wall and the annular boss. The inclination angle of the outer wall of the diaphragm is 30 degrees, the diameter of the diaphragm body is slightly smaller than that of a pneumatic fluid valve needing to be installed when the diaphragm body is not provided with the outer wall of the diaphragm, the diaphragm body can be pushed in place when installed, and the sealing performance of the diaphragm body can be guaranteed. The diaphragm body is made of the PTFE material, the middle of the diaphragm body is thick, the edge of the diaphragm body is thin, and due to the design, the diaphragm can be easily pushed in place during installation, and due to abrasion, the sealing performance of the diaphragm is not affected by the self-lubrication performance of the PTFE material.

Description

Technical Field

[0001] This utility model belongs to the technical field of pneumatic equipment and tools, and specifically relates to a pneumatic fluid valve piston diaphragm. Background Technology

[0002] In the pneumatic fluid valves used in the paint industry, piston diaphragms play a crucial role in ensuring a tight seal. However, replacing piston diaphragms is quite troublesome. Furthermore, due to the corrosive nature of paint itself, the lifespan of piston diaphragms is very short. Alternatively, due to material limitations, it may become difficult to push the piston diaphragm into place after a long period of use. Therefore, a piston diaphragm with a long service life and excellent sealing performance is essential. Summary of the Invention

[0003] The purpose of this utility model is to address the shortcomings of the existing technology by providing a pneumatic fluid valve piston diaphragm in the field of pneumatic equipment and tool technology.

[0004] The technical solution adopted in this utility model is as follows:

[0005] A pneumatic fluid valve piston diaphragm includes a diaphragm body, which is a hollow annular design. A ring of annular protrusions surrounds the hollow part, and an outwardly inclined outer wall is provided at the edge of the diaphragm body. An annular groove is formed between the outer wall of the diaphragm and the ring of annular protrusions.

[0006] In a preferred embodiment, the membrane body is made of PTFE material and has a design that is thicker in the middle and thinner at the edges.

[0007] In a preferred embodiment, the diaphragm outer wall is tilted at an angle of 30°, and the diameter of the diaphragm body without the outer wall is slightly smaller than the diameter of the pneumatic fluid valve to be installed.

[0008] The beneficial effects of this utility model are:

[0009] 1. This utility model uses a 30° tilt angle for the outer wall of the diaphragm. The diameter of the diaphragm body without the outer wall is slightly smaller than the diameter of the pneumatic fluid valve to be installed. This allows for proper installation while ensuring a tight seal.

[0010] 2. The diaphragm body is made of PTFE material, and the diaphragm body is designed to be thicker in the middle and thinner at the edges. This design makes the diaphragm easy to push into place during installation, and the wear and tear is not affected by the self-lubricating properties of PTFE material, so it does not affect the sealing performance of the diaphragm itself. Attached Figure Description

[0011] Figure 1 This is a top view of the present invention;

[0012] Figure 2 This is a front view of the present invention;

[0013] In the figure, 1-diaphragm body, 2-annular boss, 3-diaphragm outer wall. Detailed Implementation

[0014] The present invention will be further described below with reference to the accompanying drawings:

[0015] like Figure 1 As shown, this utility model includes a diaphragm body 1, an annular boss 2, and an outer wall of the diaphragm 3.

[0016] A pneumatic fluid valve piston diaphragm includes a diaphragm body 1, which is a hollow annular design. A ring of annular protrusions 2 surrounds the hollow part. The edge of the diaphragm body 1 is provided with an outwardly inclined outer wall 3. An annular groove is formed between the outer wall 3 and the ring of annular protrusions 2.

[0017] The diaphragm body 1 is designed to be thicker in the middle and thinner at the edges.

[0018] The diaphragm body 1 is made of PTFE material.

[0019] The tilt angle of the outer wall 3 of the diaphragm is 30°, and the diameter of the diaphragm body 1 without the outer wall 3 is slightly smaller than the diameter of the pneumatic fluid valve to be installed.

[0020] The usage process of this utility model is as follows:

[0021] In use, the diaphragm body 1 is pressed into the corresponding pneumatic fluid valve, and the outer wall 3 of the diaphragm is in full contact with the inner wall of the pneumatic fluid valve.

[0022] Other processes of this invention can be carried out using existing technologies.

[0023] The preferred embodiment of this utility model has been described. Any further extensions made by those skilled in the art to this utility model fall within the protection scope of this utility model.

Claims

1. A pneumatic fluid valve piston diaphragm, characterized in that, Includes a diaphragm body (1), which is a hollow annular design. There is an annular boss (2) around the hollow part. The edge of the diaphragm body is provided with an outwardly inclined diaphragm outer wall (3). An annular groove is formed between the diaphragm outer wall (3) and the annular boss (2). The diameter of the diaphragm body (1) without the diaphragm outer wall (3) is slightly smaller than the diameter of the pneumatic fluid valve to be installed.

2. The pneumatic fluid valve piston diaphragm according to claim 1, characterized in that, The diaphragm body (1) is designed to be thick in the middle and thin at the edges.

3. The pneumatic fluid valve piston diaphragm according to claim 1, characterized in that, The diaphragm body (1) is made of PTFE material.

4. The pneumatic fluid valve piston diaphragm according to claim 1, characterized in that, The tilt angle of the outer wall (3) of the diaphragm is 30°.

Images