Oxygen production valve with exhaust primary noise reduction function

Abstract

The utility model discloses an oxygen generation valve with an exhaust primary noise reduction function, and belongs to the technical field of oxygen generation valves. The top of the oxygen generation valve body is provided with an exhaust port; the silencing cover covers the top of the oxygen production valve body; the shell covers the silencing cover and is connected with the oxygen generation valve body, at the moment, an exhaust cavity is formed between the top of the oxygen generation valve body and the shell, the shell is provided with a centralized exhaust port, and gas exhausted from the exhaust port enters the exhaust cavity and is exhausted from the exhaust port. And after primary noise reduction is carried out by the noise reduction cover, the air is exhausted outwards from the centralized exhaust port. After the noise reduction cover and the shell are additionally arranged on the oxygen generation valve body, a structure with an exhaust primary noise reduction function is formed, and the oxygen generation valve body has the noise reduction and noise reduction capacity under the condition that a noise reduction mechanism is not externally connected.

Description

Technical Field

[0001] The utility model belongs to the technical field of oxygen-generating valves, and in particular relates to an oxygen-generating valve with self-exhaust and first-level noise reduction. Background Art

[0002] Oxygen generator is a type of machine that produces oxygen. Its principle is to use air separation technology to extract oxygen from the air for home or medical use. Molecular sieve oxygen generator uses physical pressure swing adsorption oxygen production technology. Its oxygen production principle is mainly to use an air compressor to make oxygen and nitrogen in the air pass through a molecular sieve, and use the difference in the molecular sieve's adsorption capacity for oxygen and nitrogen in the air to separate oxygen and nitrogen, thereby obtaining high-concentration oxygen.

[0003] Among them, the compressor, oxygen production valve and molecular sieve are the core components of the molecular sieve oxygen generator. The oxygen production valve is provided with an air inlet, an air outlet and an exhaust port. When the solenoid valve is energized, the air outlet and the air inlet are connected. When the high-pressure gas passes through the molecular sieve, the nitrogen will be adsorbed by the molecular sieve to obtain high-concentration oxygen. When the solenoid valve is de-energized, the air outlet and the exhaust port are connected, and the nitrogen adsorbed in the molecular sieve is discharged through the air outlet and the exhaust port in turn, so that the molecular sieve can be reused for a long time.

[0004] The current oxygen-generating valve produces noise during the exhaust process. The conventional silencing method is to install the oxygen-generating valve on a manifold, and the exhaust ports are connected to an external muffler after being collected through the holes on the manifold to achieve the purpose of centralized exhaust and silencing. However, this silencing method still has the problem of poor silencing effect. Summary of the invention

[0005] The utility model aims at the above problems existing in the prior art and proposes an oxygen-making valve with self-exhaust and first-level noise reduction.

[0006] The utility model can be realized through the following technical solutions:

[0007] An oxygen-generating valve with exhaust and first-level noise reduction, comprising:

[0008] The oxygen-making valve body has an exhaust port at the top;

[0009] A silencer cover, which is arranged on the top of the oxygen making valve body;

[0010] The shell is covered on the silencer cover and connected to the oxygen-generating valve body. At this time, an exhaust cavity is formed between the top of the oxygen-generating valve body and the shell. The shell is provided with a centralized exhaust port. The gas discharged from the exhaust port enters the exhaust cavity, is subjected to primary noise reduction by the silencer cover, and is discharged from the centralized exhaust port.

[0011] As a further improvement of the present invention, the centralized exhaust port can be externally connected to a noise reduction mechanism to achieve secondary noise reduction.

[0012] As a further improvement of the utility model, the bottom of the oxygen-generating valve body is used to connect with an external manifold and has an air inlet and an air outlet, the air inlet is used to connect with an external air compressor, and the air outlet is used to connect with an external molecular sieve.

[0013] As a further improvement of the present invention, the switching of the oxygen-generating valve body between the working state and the exhaust state is achieved by moving the valve core in the oxygen-generating valve body.

[0014] As a further improvement of the utility model, when the oxygen-generating valve body is in a working state, the air inlet is connected to the air outlet and the air outlet is closed to the exhaust port;

[0015] When the oxygen-generating valve body is in the exhaust state, the gas outlet is communicated with the exhaust port and the gas inlet is closed to the gas outlet.

[0016] As a further improvement of the present invention, the silencer cover is sealedly connected to the oxygen-making valve body.

[0017] As a further improvement of the present invention, the silencer cover has the same shape as the outer shell, and the outer wall of the silencer cover is in close contact with or bonded to the inner wall of the outer shell.

[0018] As a further improvement of the present invention, the shell and the oxygen-generating valve body are detachably connected via fasteners.

[0019] Compared with the prior art, the utility model has the following beneficial effects:

[0020] 1. The top of the oxygen-generating valve body is provided with an exhaust port. After a silencer cover and a shell are added to the top of the oxygen-generating valve body, an exhaust cavity is formed between the shell and the top of the oxygen-generating valve body. The gas discharged from the exhaust port is subjected to primary noise reduction by the silencer cover and then discharged to the outside through the centralized exhaust port of the shell. Thus, the oxygen-generating valve body itself forms a structure with self-exhaust and primary noise reduction. Without an external noise reduction mechanism, it has the ability to reduce noise and silence noise.

[0021] 2. The centralized exhaust port can be connected to an external noise reduction mechanism to achieve two-level noise reduction. The exhaust port performs a first-level noise reduction when passing through the silencer cover, and then performs a second-level noise reduction when discharged from the centralized exhaust port, which greatly reduces the noise during exhaust and can achieve a good noise reduction effect;

[0022] 3. An original exhaust port is also provided on the side of the air outlet at the bottom of the oxygen making valve body, and the original exhaust port is connected with the exhaust port at the top of the oxygen making valve body. Therefore, when the top exhaust port is used for exhaust, it is only necessary to block the guide port on the manifold. The operation is simple and convenient, and there is no need to adjust the structure of the oxygen making valve body itself. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] Figure 1 It is a structural schematic diagram of the oxygen-making valve with self-exhaust and first-level noise reduction of the utility model;

[0024] Figure 2 The utility model Figure 1 Schematic diagram of the structure after removing the shell;

[0025] Figure 3 It is a structural schematic diagram of the top of the oxygen-making valve body of the utility model;

[0026] Figure 4 It is a structural schematic diagram of the bottom of the oxygen-making valve body of the utility model.

[0027] In the figure, 100, oxygen valve body; 110, exhaust port; 120, air inlet; 130, air outlet;

[0028] 200, silencer cover;

[0029] 300. Casing; 310. Centralized exhaust port. DETAILED DESCRIPTION

[0030] The following are specific embodiments of the present invention and the accompanying drawings to further describe the technical method of the present invention, but the present invention is not limited to these embodiments.

[0031] like Figure 1-4 As shown, the utility model provides an oxygen-generating valve with self-exhaust and first-level noise reduction, comprising:

[0032] The oxygen-generating valve body 100 has an exhaust port 110 at the top;

[0033] A silencer cover 200, which is arranged on the top of the oxygen making valve body 100;

[0034] The shell 300 is covered on the silencer 200 and connected to the oxygen-generating valve body 100. At this time, an exhaust cavity is formed between the top of the oxygen-generating valve body 100 and the shell 300. The shell 300 is provided with a centralized exhaust port 310. The gas discharged from the exhaust port 110 enters the exhaust cavity, and is discharged from the centralized exhaust port 310 after the first-level noise reduction through the silencer 200.

[0035] That is to say, after the silencer cover 200 and the outer shell 300 are added, the oxygen-generating valve body 100 in this embodiment forms a structure with self-exhaust and first-level noise reduction. Without an external noise reduction mechanism, it already has the ability to reduce and silence noise.

[0036] The material of the silencer cover 200 is not specifically limited, and the silencer cover 200 may be made of silencer cotton, silencer pads, or other materials that can achieve noise reduction effects.

[0037] Preferably, the centralized exhaust port 310 can be externally connected to a noise reduction mechanism and realize two-level noise reduction, whereby the exhaust port 110 performs a first-level noise reduction when passing through the silencer 200, and then performs a second-level noise reduction when being discharged from the centralized exhaust port 310, thereby greatly reducing the noise during exhaust and achieving a good noise reduction effect.

[0038] Preferably, the bottom of the oxygen-generating valve body 100 is used to connect to an external manifold and has an air inlet 120 and an air outlet 130 . The air inlet 120 is used to connect to an external air compressor, and the air outlet 130 is used to connect to an external molecular sieve.

[0039] Among them, in this embodiment, Figure 1 An original exhaust port is also provided on the side of the air outlet 130 shown, and the original exhaust port is connected to the exhaust port 110 on the top of the oxygen-generating valve body. Therefore, when the top exhaust port 110 is used for exhaust, it is only necessary to block the guide port on the manifold. The operation is simple and convenient, and there is no need to adjust the structure of the oxygen-generating valve body 100 itself.

[0040] Preferably, the switching of the oxygen-generating valve body 100 between the working state and the exhaust state is achieved by moving the valve core in the oxygen-generating valve body 100 .

[0041] Specifically, when the oxygen generator body 100 is in working state, the air inlet 120 is connected to the air outlet 130 and the air outlet 130 is closed to the exhaust port 110. At this time, the gas entering from the air inlet 120 can flow into the molecular sieve through the air outlet 130 to supply the oxygen generator to produce oxygen;

[0042] When the oxygen-generating valve body 100 is in the exhaust state, the gas outlet 130 is connected to the exhaust port 110 and the gas inlet 120 and the gas outlet 130 are closed. At this time, the gas in the molecular sieve flows into the valve body from the gas outlet 130 and is finally discharged from the exhaust port 110 at the top of the oxygen-generating valve body 100.

[0043] Preferably, the silencer cover 200 is sealedly connected to the oxygen-generating valve body 100 to ensure that the gas discharged from the gas outlet 130 will not pass through the connection gap between the silencer cover 200 and the oxygen-generating valve body 100, thereby ensuring a good primary noise reduction effect.

[0044] Preferably, the silencer cover 200 and the outer shell 300 have the same shape, and the outer wall of the silencer cover 200 is in close contact with or bonded to the inner wall of the outer shell 300 .

[0045] Preferably, the shell 300 and the oxygen-generating valve body 100 are detachably connected via fasteners, so as to facilitate installation and removal of the silencer cover 200 and the shell 300 .

[0046] The technical means disclosed in the scheme of the utility model are not limited to the technical means disclosed by the above technical means, but also include technical solutions composed of any combination of the above technical features. The above is a specific implementation method of the utility model. It should be pointed out that for ordinary technicians in this technical field, several improvements and modifications can be made without departing from the principle of the utility model, and these improvements and modifications are also regarded as the protection scope of the utility model.

[0047] It should be noted that all directional indications (such as up, down, left, right, front, back...) in the embodiments of the present invention are only used to explain the relative position relationship, movement status, etc. between the components under a certain specific posture (as shown in the accompanying drawings). If the specific posture changes, the directional indication will also change accordingly.

[0048] In addition, in the present invention, the descriptions of "first", "second", "one", etc. are only used for descriptive purposes and cannot be understood as indicating or implying their relative importance or implicitly indicating the number of the indicated technical features. Therefore, the features defined as "first" or "second" may explicitly or implicitly include at least one of the features. In the description of the present invention, the meaning of "plurality" is at least two, such as two, three, etc., unless otherwise clearly and specifically defined.

[0049] In the present invention, unless otherwise clearly specified and limited, the terms "connection", "fixation", etc. should be understood in a broad sense. For example, "fixation" can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium, it can be the internal connection of two elements or the interaction relationship between two elements, unless otherwise clearly defined. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0050] In addition, the technical solutions between the various embodiments of the present invention can be combined with each other, but it must be based on the fact that ordinary technicians in the field can implement it. When the combination of technical solutions is contradictory or cannot be implemented, it should be deemed that such combination of technical solutions does not exist and is not within the scope of protection required by the present invention.

Claims

1. An oxygen-generating valve with self-exhaust and first-level noise reduction, characterized in that: include: The oxygen-making valve body has an exhaust port at the top; A silencer cover, which is arranged on the top of the oxygen making valve body; The shell is covered on the silencer cover and connected to the oxygen-generating valve body. At this time, an exhaust cavity is formed between the top of the oxygen-generating valve body and the shell. The shell is provided with a centralized exhaust port. The gas discharged from the exhaust port enters the exhaust cavity, is subjected to primary noise reduction by the silencer cover, and is discharged from the centralized exhaust port.

2. The oxygen-generating valve with self-exhaust and first-level noise reduction according to claim 1 is characterized in that: The centralized exhaust port can be externally connected to a noise reduction mechanism to achieve secondary noise reduction.

3. The oxygen-generating valve with self-exhaust and first-level noise reduction according to claim 1 is characterized in that: The bottom of the oxygen-making valve body is used to connect with an external manifold and has an air inlet and an air outlet. The air inlet is used to connect with an external air compressor, and the air outlet is used to connect with an external molecular sieve.

4. The oxygen-generating valve with self-exhaust and first-level noise reduction according to claim 3 is characterized in that: When the oxygen-generating valve body is in a working state, the air inlet is connected to the air outlet and the air outlet is closed to the exhaust port; When the oxygen-generating valve body is in the exhaust state, the gas outlet is communicated with the exhaust port and the gas inlet is closed to the gas outlet.

5. The oxygen-generating valve with self-exhaust and first-level noise reduction according to claim 1 is characterized in that: The silencer cover is sealed and connected to the oxygen-making valve body.

6. The oxygen-generating valve with self-exhaust and first-level noise reduction according to claim 1 is characterized in that: The silencer cover has the same shape as the outer shell, and the outer wall of the silencer cover is in close contact with or bonded to the inner wall of the outer shell.

7. The oxygen-generating valve with self-exhaust and first-level noise reduction according to claim 1 is characterized in that: The shell and the oxygen-making valve body are detachably connected via fasteners.

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