Converging valve structure for oxygen generator

Abstract

The utility model discloses a confluence valve structure for an oxygen generator, and belongs to the field of oxygen generators. A confluence valve structure for an oxygen generator comprises an upper mounting block and a lower mounting block, a connecting block and a valve block are arranged between the upper mounting block and the lower mounting block, and the connecting block is fixedly connected with the valve block; the gas storage tank connecting pipe and the micro differential pressure sensor connecting pipe are arranged on the outer wall of the connecting block; the first conveying pipe and the second conveying pipe are both arranged on the valve block; two check valve assemblies are arranged at the connecting position of the connecting block and the valve block and communicated with an air storage tank connecting pipe and a micro differential pressure sensor connecting pipe respectively. All the parts are integrally arranged, so that the mounting and dismounting time can be saved, the working efficiency is improved, the sealing performance is good, silica gel or a rubber tube is not needed for sealing, and the use is convenient.

Description

Technical Field

[0001] This utility model relates to the field of oxygen generator technology, and in particular to a manifold valve structure for an oxygen generator. Background Technology

[0002] The manifold valve is a core component in the oxygen generation system used for centralized control of gas flow and pressure regulation, ensuring efficient oxygen transmission and emergency backup functions.

[0003] Currently, traditional manifold valves require connecting multiple gas cylinder interfaces to pipelines via flanges or threads. During installation, fasteners need to be repeatedly adjusted and the sealing calibrated, which is time-consuming, labor-intensive, and requires a high level of skill from the operators. Furthermore, after installation, silicone or rubber tubing is sometimes used to reinforce the sealing performance. However, silicone or rubber tubing is susceptible to temperature changes or chemical corrosion, leading to problems such as hardening, aging, and deformation, which can cause gas leaks and affect the performance. Therefore, this utility model is proposed. Utility Model Content

[0004] The purpose of this utility model is to solve the problems existing in the prior art and to propose a manifold valve structure for an oxygen generator.

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

[0006] A manifold valve structure for an oxygen concentrator includes:

[0007] An upper mounting block and a lower mounting block are provided, and a connecting block and a valve block are provided between the upper mounting block and the lower mounting block, wherein the connecting block and the valve block are fixedly connected;

[0008] Both the gas storage tank connecting pipe and the micro differential pressure sensor connecting pipe are located on the outer wall of the connecting block;

[0009] Both the first and second conveying pipes are mounted on the valve block;

[0010] Two check valve assemblies are provided at the connection between the connecting block and the valve block. The two check valve assemblies are respectively connected to the gas storage tank connecting pipe and the micro differential pressure sensor connecting pipe.

[0011] Preferably, the check valve assembly includes a valve body and a retaining ring connected to the valve body, the connecting block is provided with an annular groove, and the retaining ring is threaded into the annular groove.

[0012] Furthermore, the valve block is provided with a countersunk hole corresponding to the fixing ring, and the end of the fixing ring is also provided with a sealing ring, which is disposed between the fixing ring and the inner wall of the countersunk hole.

[0013] Preferably, the connecting block is provided with a groove, and both the groove and the valve block are provided with corresponding positioning holes.

[0014] Preferably, the upper mounting block is provided with a first mounting hole, and the connecting block is provided with a first threaded hole corresponding to the first mounting hole.

[0015] Preferably, the lower mounting block is provided with a second mounting hole, and the valve block is provided with a second threaded hole.

[0016] Compared with the prior art, this utility model provides a manifold valve structure for an oxygen concentrator, which has the following beneficial effects:

[0017] 1. The oxygen generator uses a manifold valve structure. When the molecular sieve tower adsorbs gas, the gas will pass through the check valve assembly and be discharged from the first and second delivery pipes, thus entering the interior of the molecular sieve tower. The check valve assembly can ensure that the gas flows only in a preset direction, avoid mutual interference between gas sources, and prevent high-pressure gas from back impacting the low-pressure pipeline during gas source switching or pressure reduction.

[0018] The parts of this device not covered herein are the same as or can be implemented using existing technologies. This utility model does not require multiple sets of gas cylinder interfaces and pipelines to be connected by flanges or threads. All parts are integrated, which can save installation and disassembly time, improve work efficiency, and has good sealing performance. It also does not require the use of silicone or rubber tubing for sealing, making it convenient to use. Attached Figure Description

[0019] Figure 1 This utility model provides a schematic diagram of the structure of a manifold valve for an oxygen generator. Figure 1 ;

[0020] Figure 2 This utility model provides a schematic diagram of the structure of a manifold valve for an oxygen generator. Figure 2 ;

[0021] Figure 3 This is a schematic diagram of the bottom structure of a manifold valve for an oxygen generator proposed in this utility model;

[0022] Figure 4 This is a front view of a manifold valve structure for an oxygen generator proposed in this utility model;

[0023] Figure 5 This utility model presents a schematic diagram of a manifold valve structure for an oxygen generator, in which the connecting block and the valve block are separated. Figure 1 ;

[0024] Figure 6 This utility model presents a schematic diagram of a manifold valve structure for an oxygen generator, in which the connecting block and the valve block are separated. Figure 2 ;

[0025] Figure 7This is a schematic diagram of the installation of the connecting block and the valve block in the manifold valve structure for an oxygen generator proposed in this utility model.

[0026] In the diagram: 1. Upper mounting block; 101. First mounting hole; 2. Lower mounting block; 201. Second mounting hole; 3. Connecting block; 301. Gas tank connecting pipe; 302. Micro differential pressure sensor connecting pipe; 303. Groove; 304. Positioning hole; 305. First threaded hole; 306. Annular groove; 4. Valve block; 401. First delivery pipe; 402. Second delivery pipe; 403. Second threaded hole; 404. Countersunk hole; 5. Valve body; 501. Retaining ring; 502. Sealing ring. Detailed Implementation

[0027] 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.

[0028] In the description of this utility model, it should be understood that the terms "upper", "lower", "front", "rear", "left", "right", "top", "bottom", "inner", "outer", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model.

[0029] Reference Figures 1-7 A manifold valve structure for an oxygen generator includes an upper mounting block 1 and a lower mounting block 2. A connecting block 3 and a valve block 4 are disposed between the upper mounting block 1 and the lower mounting block 2, and the connecting block 3 and the valve block 4 are fixedly connected. A gas storage tank connecting pipe 301 and a micro differential pressure sensor connecting pipe 302 are provided on the outer wall of the connecting block 3. A first delivery pipe 401 and a second delivery pipe 402 are provided on the valve block 4. Two check valve assemblies are provided at the connection between the connecting block 3 and the valve block 4, and the two check valve assemblies are respectively connected to the gas storage tank connecting pipe 301 and the micro differential pressure sensor connecting pipe 302.

[0030] In this invention, the connecting block 3 and the valve block 4 are both integrally designed. During installation, the connecting block 3 and the valve block 4 can be directly fixed together. The upper mounting block 1 and the lower mounting block 2 are used to limit the connection between the connecting block 3 and the valve block 4, making the connection more stable. Pipes are connected to the gas storage tank connecting pipe 301 and the micro-differential pressure sensor connecting pipe 302, with the other end of each pipe connected to the gas storage tank and the micro-differential pressure sensor. The first delivery pipe 401 and the second delivery pipe 402 are both connected to the oxygen generator's fluid guiding assembly, which is connected to the molecular sieve system. When the molecular sieve tower adsorbs gas... The gas will pass through the check valve assembly and then be discharged from the first delivery pipe 401 and the second delivery pipe 402, thus entering the interior of the molecular sieve tower. The check valve assembly can ensure that the gas flows only in a preset direction, avoiding mutual interference between gas sources, and preventing high-pressure gas from back-impacting low-pressure pipelines during gas source switching or pressure reduction. In this application, it is not necessary to connect multiple sets of gas cylinder interfaces and pipelines through flanges or threads. All parts are integrated, which can save installation and disassembly time, improve work efficiency, and have good sealing performance. It is also not necessary to use silicone or rubber tubing for sealing, making it convenient to use.

[0031] Reference Figure 5 and Figure 6 The check valve assembly includes a valve body 5 and a retaining ring 501 connected to the valve body 5. The connecting block 3 is provided with an annular groove 306, and the retaining ring 501 is threadedly connected to the annular groove 306.

[0032] The valve block 4 is provided with a countersunk hole 404 corresponding to the fixing ring 501. The end of the fixing ring 501 is also provided with a sealing ring 502, which is disposed between the inner wall of the fixing ring 501 and the countersunk hole 404.

[0033] In this invention, during installation, the retaining ring 501 on the check valve assembly is directly rotated into the annular groove 306. Specifically, the retaining ring 501 has external threads, and the inner wall of the annular groove 306 has internal threads. When the retaining ring 501 is rotated, the external and internal threads can be threaded together for fixation. A sealing gasket is also provided in the annular groove 306 to enhance the sealing effect between the check valve assembly and the connecting block 3. Then, the connecting block 3 and the valve block 4 are installed together. At this time, the retaining ring 501 will be installed in the countersunk hole 404. The sealing ring 502 ensures the sealing performance between the retaining ring 501 and the valve block 4, preventing gas leakage and making it more convenient to use.

[0034] Reference Figures 1-7The connecting block 3 is provided with a groove 303, and both the groove 303 and the valve block 4 are provided with corresponding positioning holes 304. After the connecting block 3 and the valve block 4 are installed together, bolts are connected in the positioning holes 304 so that they are threadedly connected to the positioning holes 304 on the valve block 4, thereby forming a fixed connection. This can make the connecting block 3 and the valve block 4 more tightly connected and ensure the sealing effect.

[0035] Reference Figures 1-7 The upper mounting block 1 is provided with a first mounting hole 101, and the connecting block 3 is provided with a first threaded hole 305 corresponding to the first mounting hole 101. A bolt is connected in the first mounting hole 101 and the first threaded hole 305 so that the bolt is threadedly connected to the first threaded hole 305, thus enabling the upper mounting block 1 and the connecting block 3 to be fixedly connected.

[0036] Reference Figure 7 The lower mounting block 2 is provided with a second mounting hole 201, and the valve block 4 is provided with a second threaded hole 403. Bolts are connected in the second mounting hole 201 and the second threaded hole 403 so that the bolts are threadedly connected to the second threaded hole 403, thereby fixing the lower mounting block 2 and the valve block 4 together, thus fixing the entire manifold valve structure. In this application, the mechanical preload of the bolts can provide a rigid connection, which can resist gas pressure fluctuations and equipment vibration, and prevent the interface from loosening or leaking. It is especially suitable for high-pressure oxygen systems. Moreover, disassembly only requires loosening the bolts, avoiding cutting the pipeline or damaging the sealing structure, thus reducing maintenance costs.

[0037] 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 manifold valve structure for an oxygen concentrator, characterized in that, The utility model relates to a kind of gas pressure regulating valve, including: Upper mounting block (1) and lower mounting block (2), connecting block (3) and valve block (4) are arranged between upper mounting block (1) and lower mounting block (2), the connecting block (3) and the valve block (4) are fixedly connected; Gas tank connecting pipe (301) and micro pressure difference sensor connecting pipe (302) are both arranged on the outer wall of connecting block (3); First conveying pipe (401) and second conveying pipe (402) are both arranged on valve block (4); Two check valve assemblies are equipped at the junction of the connecting block (3) and the valve block (4), and the two check valve assemblies are respectively communicated with gas tank connecting pipe (301) and micro pressure difference sensor connecting pipe (302).

2. The structure of a flow combining valve for an oxygen generator according to claim 1, wherein The check valve assembly includes valve body (5) and fixed ring (501) connected with valve body (5), the connecting block (3) is equipped with annular groove (306), and the fixed ring (501) is connected in annular groove (306) by screw thread.

3. The structure of a flow combining valve for an oxygen generator according to claim 2, wherein The valve block (4) is equipped with counterbore (404) corresponding to fixed ring (501), and the end of fixed ring (501) is also equipped with sealing ring (502), and sealing ring (502) is arranged between fixed ring (501) and the inner wall of counterbore (404).

4. The structure of a converging valve for an oxygen generator according to claim 1, wherein The connecting block (3) is equipped with recess (303), and the recess (303) and the valve block (4) are both equipped with corresponding positioning hole (304).

5. The structure of a flow combining valve for an oxygen generator according to claim 1, wherein The upper mounting block (1) is equipped with first mounting hole (101), and the connecting block (3) is equipped with first threaded hole (305) corresponding to first mounting hole (101).

6. The structure of a converging valve for an oxygen generator according to claim 1, wherein The lower mounting block (2) is equipped with second mounting hole (201), and the valve block (4) is equipped with second threaded hole (403).

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