Concentric cylinder gland assembly with valve element convenient to replace

Abstract

A one-way valve seat is connected in a concentric cylinder gland in the horizontal direction through threads, a one-way valve is horizontally arranged in a stepped hole formed in the small end of the one-way valve seat, and a second sealing ring is arranged between the end face of the small end of the one-way valve seat and the concentric cylinder gland. A first sealing ring is arranged between the end face of the large end of the one-way valve seat and the concentric cylinder gland. The check valve is reasonable in structure and reliable in performance, other parts do not need to be detached when the valve element and the check valve seat are replaced, installation and detachment are quite rapid and convenient, maintenance efficiency is greatly improved, and maintenance cost is reduced.

Description

Technical Field

[0001] The utility model relates to the technical field of air compressors, in particular to a concentric cylinder gland assembly which is convenient for replacing a valve core. Background Art

[0002] Ultra-high pressure compressors are air compressors used for diving, firefighting and outdoor sports. The Chinese patent with application number: 202020558853.8 is a patent invented by Zhang Zhifei, an engineer of Jingjiang Huben Machinery Technology Co., Ltd. Its motor is a single-output shaft, requiring only one eccentric wheel. The low-pressure cylinder and the high-pressure cylinder are combined into one. The low-pressure compression and high-pressure compression above the eccentric wheel achieve coaxial compression. The structure is compact and reasonable, which greatly reduces the size of the compressor. It is extremely convenient to install, disassemble and repair. Only four screws on the low-pressure cylinder cover can be removed to replace the low-pressure piston and the high-pressure piston. In addition, it has low manufacturing cost, long service life and high inflation efficiency. However, the valve core of the second one-way valve (30') and the hole that matches the valve core are easily worn. The compressor must be disassembled to replace the valve core or the concentric cylinder gland A. There are many parts to be disassembled, and the disassembly and installation process is time-consuming and laborious. Summary of the invention

[0003] The utility model aims to solve the above technical problems and provide a concentric cylinder gland assembly which is convenient for replacing a valve core.

[0004] In order to achieve the above technical objectives and meet the above technical requirements, the technical solution adopted by the utility model is:

[0005] A concentric cylinder gland assembly for facilitating replacement of valve cores is characterized in that: a one-way valve seat is horizontally connected to the concentric cylinder gland through threads, a one-way valve is horizontally arranged in a stepped hole arranged at a small end of the one-way valve seat, a second sealing ring is arranged between the end face of the small end of the one-way valve seat and the concentric cylinder gland, and a first sealing ring is arranged between the end face of the large end of the one-way valve seat and the concentric cylinder gland.

[0006] Preferably, the one-way valve seat is configured as a stepped shaft, the outer ring of the large head end of the stepped shaft is provided with a thread, and the small head end is horizontally provided with a stepped hole, and the small hole of the stepped hole is communicated with the high-pressure gas channel B.

[0007] Preferably, the high-pressure gas channel B is connected to the high-pressure gas channel A on the concentric cylinder gland, and the large hole of the stepped hole is connected to the high-pressure gas outlet on the concentric cylinder gland.

[0008] Compared with the traditional structure, the utility model has the following beneficial effects:

[0009] 1. Combined structure, reasonable structure, easy installation and reliable performance.

[0010] 2. When replacing the valve core and the one-way valve seat, there is no need to disassemble other parts. The installation and disassembly are very quick and convenient, which greatly improves the maintenance efficiency.

[0011] 3. The one-way valve seat has a simple structure, small size, low manufacturing cost, and reduced maintenance cost. BRIEF DESCRIPTION OF THE DRAWINGS

[0012] Figure 1 It is a schematic diagram of the structure of the utility model;

[0013] Figure 2 It is a structural schematic diagram of a concentric cylinder gland A in the prior art;

[0014] In the figure: 1. concentric cylinder gland, 1-1. high-pressure gas channel A, 1-2. high-pressure gas outlet, 2. first sealing ring, 3. one-way valve seat, 3-1. stepped hole, 3-2. high-pressure gas channel B, 4. one-way valve, 5. second sealing ring, 4', concentric cylinder gland A, 30', second one-way valve. DETAILED DESCRIPTION

[0015] The utility model is further described below.

[0016] Referring to the accompanying drawings, a concentric cylinder gland assembly which is convenient for replacing the valve core is characterized in that: a one-way valve seat 3 is horizontally connected to the concentric cylinder gland 1 through a thread, a one-way valve 4 is horizontally arranged in a stepped hole 3-1 arranged at the small end of the one-way valve seat 3, a second sealing ring 5 is arranged between the end surface of the small end of the one-way valve seat 3 and the concentric cylinder gland 1, and a first sealing ring 2 is arranged between the end surface of the large end of the one-way valve seat 3 and the concentric cylinder gland 1.

[0017] In this preferred embodiment, the one-way valve seat 3 is configured as a stepped shaft, the outer ring of the large head end of the stepped shaft is provided with threads, and the small head end is horizontally provided with a stepped hole 3-1, and the small hole of the stepped hole 3-1 is connected to the high-pressure gas channel B3-2.

[0018] In this preferred embodiment, the high-pressure gas channel B3-2 is connected to the high-pressure gas channel A1-1 on the concentric cylinder gland 1, and the large hole of the stepped hole 3-1 is connected to the high-pressure gas outlet 1-2 on the concentric cylinder gland 1.

[0019] During use, the valve core of the one-way valve and the hole matched with the valve core are easy to wear. When the valve core or the one-way valve seat needs to be replaced, there is no need to disassemble other parts. Just use a tool to unscrew the one-way valve seat to replace the valve core or the one-way valve seat, which is very quick and convenient. In the prior art, the concentric cylinder gland A has the function of a one-way valve seat, but the compressor must be disassembled to replace the concentric cylinder gland A, and the concentric cylinder gland A is large in size, complex in structure, and has a high manufacturing cost. The one-way valve seat in the utility model has a simple structure, a small size, a low manufacturing cost, and is quite convenient to install and disassemble.

[0020] The above embodiments of the present invention are merely examples to clearly illustrate the present invention, but are not intended to limit the protection scope of the present invention. All equivalent technical solutions also belong to the scope of the present invention. The patent protection scope of the present invention should be defined by the claims.

Claims

1. A concentric cylinder gland assembly that facilitates replacement of the valve core, characterized in that: A one-way valve seat (3) is connected in the horizontal direction of the concentric cylinder gland (1) via a thread, a one-way valve (4) is horizontally arranged in a stepped hole (3-1) arranged at the small end of the one-way valve seat (3), a second sealing ring (5) is arranged between the end surface of the small end of the one-way valve seat (3) and the concentric cylinder gland (1), and a first sealing ring (2) is arranged between the end surface of the large end of the one-way valve seat (3) and the concentric cylinder gland (1).

2. The concentric cylinder gland assembly for facilitating valve core replacement according to claim 1, characterized in that: The one-way valve seat (3) is configured as a stepped shaft, the outer ring of the large end of the stepped shaft is provided with a thread, and the small end is horizontally provided with a stepped hole (3-1), and the small hole of the stepped hole (3-1) is communicated with a high-pressure gas channel B (3-2).

3. The concentric cylinder gland assembly for facilitating valve core replacement according to claim 2, characterized in that: The high-pressure gas channel B (3-2) is connected to the high-pressure gas channel A (1-1) on the concentric cylinder gland (1), and the large hole of the stepped hole (3-1) is connected to the high-pressure gas outlet (1-2) on the concentric cylinder gland (1).

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