A connecting structure of a compressor and a molecular sieve

Abstract

The utility model relates to oxygen generator technical field discloses a compressor and molecular sieve's connecting structure, its technical scheme main point is that the compressor includes positive pressure cylinder and negative pressure cylinder, its characterized in that: positive pressure cylinder includes the first gas outlet of opening in its cylinder cover and the first air inlet on its cylinder body, and negative pressure cylinder includes the second gas outlet of opening in its cylinder cover and the second air inlet on its cylinder body, through the use of positive pressure cylinder and negative pressure cylinder, can realize the compressed air delivery to molecular sieve in the meantime, and nitrogen in molecular sieve is discharged, and compact structure, and the position difference between air inlet and gas outlet can play the function of preventing the mistake, prevents the pipeline and air inlet and gas outlet connection error.

Description

Technical Field

[0001] This utility model relates to the field of oxygen generator technology, and more specifically to a connection structure between a compressor and a molecular sieve. Background Technology

[0002] Oil-free air compressors have a wide range of applications, including oxygen generators. After the air is compressed by the oil-free air compressor, it is sent into a molecular sieve, where oxygen is separated out. The nitrogen separated by the molecular sieve is extracted by negative pressure and discharged into the air. However, oil-free air compressors that achieve the above principle are usually four-cylinder, but four-cylinder oil-free air compressors occupy a lot of space and have a complex structure. Utility Model Content

[0003] In view of the shortcomings of the existing technology, the purpose of this utility model is to provide a connection structure between the compressor and the molecular sieve, which reduces the space occupied by the compressor and plays a role in preventing mistake-proofing of pipeline connections.

[0004] To achieve the above objectives, this utility model provides the following technical solution: a connection structure between a compressor and a molecular sieve, wherein the compressor includes a positive pressure cylinder and a negative pressure cylinder, the positive pressure cylinder includes a first air outlet on its cylinder head and a first air inlet on its cylinder body, the negative pressure cylinder includes a second air outlet on its cylinder head and a second air inlet on its cylinder body, the first air outlet is connected to the air inlet of the molecular sieve, and the second air inlet is connected to the nitrogen discharge port of the molecular sieve.

[0005] As a further improvement of this utility model, the first air inlet and / or the second air outlet are connected to a muffler.

[0006] As a further improvement of this utility model, a first four-way pipe is connected between the first air outlet and the second air outlet, and a first barrier is provided inside the first four-way pipe to block the communication between the first air outlet and the second air outlet.

[0007] As a further improvement of this utility model, a second four-way pipe is connected between the first air inlet and the second air inlet, and a second barrier is provided inside the second four-way pipe to block the communication between the first air inlet and the second air inlet.

[0008] As a further improvement of this utility model, a first vibration damping part is provided at the bottom of the positive pressure cylinder, and a second vibration damping part is provided at the bottom of the negative pressure cylinder.

[0009] As a further improvement of this utility model, the first vibration damping part includes two first spring pads, and the bottom of the positive pressure cylinder forms two first legs, and the first legs are detachably connected to the corresponding first spring pads.

[0010] As a further improvement of this utility model, the second vibration damping part includes two second spring pads, and two second legs are formed at the bottom of the negative pressure cylinder. The second legs are detachably connected to the corresponding second spring pads.

[0011] As a further improvement of this utility model, the damping coefficient or elastic coefficient of the first damping part is greater than the damping coefficient or elastic coefficient of the second damping part.

[0012] As a further improvement of this utility model, a first L-shaped tube is connected to both the first air outlet and the second air outlet, and a first bracket is connected between the two first L-shaped tubes.

[0013] As a further improvement of this utility model, a second L-shaped tube is connected to both the first air inlet and the second air inlet, and a second bracket is connected between the two second L-shaped tubes.

[0014] The beneficial effects of this utility model are as follows: By using a positive pressure cylinder and a negative pressure cylinder, this utility model can deliver compressed air into the molecular sieve while simultaneously expelling nitrogen from the molecular sieve; it also has a compact structure and occupies little space; the positional difference between the air inlet and the air outlet can play a foolproof role, preventing incorrect connection of the pipeline to the air inlet and the air outlet. Attached Figure Description

[0015] Figure 1 This is a three-dimensional structural schematic diagram of the present invention; Figure 2 This is a schematic diagram of the compressor structure in this utility model; Figure 3 This is a schematic diagram of the molecular sieve structure in this utility model.

[0016] Reference numerals in the attached diagram: 1. Positive pressure cylinder; 11. First air outlet; 12. First air inlet; 13. First support leg; 2. Negative pressure cylinder; 21. Second air outlet; 22. Second air inlet; 23. Second support leg; 3. Molecular sieve; 4. Silencer; 5. First four-way pipe; 6. Second four-way pipe; 7. First spring foot pad; 8. Second spring foot pad. Detailed Implementation

[0017] The present invention will be further described in detail below with reference to the accompanying drawings and embodiments. Identical components are indicated by the same reference numerals. It should be noted that the terms "front," "rear," "left," "right," "upper," and "lower" used in the following description refer to directions in the accompanying drawings, and the terms "bottom surface," "top surface," "inner," and "outer" refer to directions toward or away from the geometric center of a specific component, respectively.

[0018] Reference Figures 1 to 3As shown in the figure, this embodiment has a connection structure between a compressor and a molecular sieve. The compressor includes a positive pressure cylinder 1 and a negative pressure cylinder 2. The positive pressure cylinder 1 includes a first air outlet 11 on its cylinder head and a first air inlet 12 on its cylinder body. There is a vertical height difference between the first air outlet 11 and the first air inlet 12. The negative pressure cylinder 2 includes a second air outlet 21 on its cylinder head and a second air inlet 22 on its cylinder body. There is also a vertical height difference between the second air outlet 21 and the second air inlet 22. The first air outlet 11 is connected to the air inlet of the molecular sieve 3, and the second air inlet 22 is connected to the nitrogen discharge port of the molecular sieve 3. The compressor also includes a motor, which is connected to the positive pressure cylinder 1 and the negative pressure cylinder 2. Both the positive pressure cylinder 1 and the negative pressure cylinder 2 are piston cylinders. When the motor starts, the motor drives the positive pressure cylinder 1 to compress the air. The compressed air is discharged through the first air outlet 11 and enters the molecular sieve 3. External air enters the positive pressure cylinder 1 through the first air inlet 12. Nitrogen gas inside molecular sieve 3 enters the second air inlet 22 through the nitrogen vent and is discharged from the second air outlet 21 after passing through the negative pressure cylinder 2. By using the positive pressure cylinder 1 and the negative pressure cylinder 2, compressed air can be delivered into molecular sieve 3 while nitrogen gas in molecular sieve 3 is discharged. It also has a compact structure and occupies little space. The positional difference between the air inlet and the air outlet can play a foolproof role and prevent incorrect connection of the pipeline to the air inlet and the air outlet.

[0019] Reference Figure 1 As shown, the first air inlet 12 and / or the second air outlet 21 are connected to the muffler 4. Preferably, the muffler 4 is connected to both the first air inlet 12 and the second air inlet 22 and connected through pipelines, which can play a role in noise reduction. The two mufflers 4 can be combined into one unit for easy assembly and disassembly.

[0020] In one embodiment, refer to Figure 1 and Figure 2 As shown, a first four-way pipe 5 connects the first air outlet 11 and the second air outlet 21. A first barrier is provided inside the first four-way pipe 5. The first barrier is integrally formed with the first four-way pipe 5 to block the communication between the first air outlet 11 and the second air outlet 21. The first four-way pipe 5 changes the air outlet direction of the first air outlet 11 and the second air outlet 21, and the first air outlet 11 and the second air outlet 21 are not connected. The first four-way pipe 5 facilitates the connection between the pipeline and the first air outlet 11 and the second air outlet 21.

[0021] Reference Figure 1 and Figure 2As shown, a second four-way pipe 6 is connected between the first air inlet 12 and the second air inlet 22. A second barrier is provided inside the second four-way pipe 6. The second barrier is integrally formed with the second four-way pipe 6 to block the communication between the first air inlet 12 and the second air inlet 22. The second four-way pipe 6 changes the air intake direction of the first air inlet 12 and the second air inlet 22 and facilitates connection with pipelines.

[0022] In another embodiment, a first L-shaped tube is connected to both the first air outlet 11 and the second air outlet 21, and a first bracket is connected between the two first L-shaped tubes.

[0023] A second L-shaped tube is connected to both the first air inlet 12 and the second air inlet 22, and a second bracket is connected between the two second L-shaped tubes.

[0024] The use of the first and second barrier components has been eliminated, which facilitates the processing of the first and second L-shaped tubes. The two first L-shaped tubes are connected by the first bracket to form a support. Two second L-shaped tubes are connected by a second bracket to form a support.

[0025] Reference Figure 1 , Figure 2 As shown, the bottom of the positive pressure cylinder 1 is provided with a first vibration damping part, and the bottom of the negative pressure cylinder 2 is provided with a second vibration damping part. The vibration of the compressor is reduced by the first vibration damping part and the second vibration damping part.

[0026] The first damping part and the second damping part can be damping shock absorbers, preferably, the first damping part and the second damping part are both spring shock absorbers; The first damping part includes two first spring pads 7, and two first legs 13 are formed at the bottom of the positive pressure cylinder 1. The first legs 13 are detachably connected to the corresponding first spring pads 7, and the two first legs 13 are arranged opposite to each other.

[0027] The second vibration damping part includes two second spring foot pads 8. Two second legs 23 are formed at the bottom of the negative pressure cylinder 2. The second legs 23 are detachably connected to the corresponding second spring foot pads 8. The two second legs 23 are arranged opposite to each other and cooperate with the first leg 13 to form four support points, thereby damping the compressor through the first spring foot pads 7 and the second spring foot pads 8.

[0028] The damping coefficient or elastic coefficient of the first damping part is greater than that of the second damping part. Because there is a pressure difference between the positive pressure cylinder 1 and the negative pressure cylinder 2, the vibrations generated by the two are different. The vibration at the positive pressure cylinder 1 is greater than that at the negative pressure cylinder 2. Therefore, increasing the damping coefficient or elastic coefficient of the first damping part can better reduce the vibration of the positive pressure cylinder 1, making the positive pressure cylinder 1 and the negative pressure cylinder 2 more balanced.

[0029] The above are merely preferred embodiments of this utility model. The protection scope of this utility model is not limited to the above embodiments. All technical solutions falling within the scope of this utility model's concept are within its protection scope. It should be noted that for those skilled in the art, any improvements and modifications made without departing from the principle of this utility model should also be considered within its protection scope.

Claims

1. A connection structure between a compressor and a molecular sieve, wherein the compressor includes a positive pressure cylinder (1) and a negative pressure cylinder (2), characterized in that: The positive pressure cylinder (1) includes a first air outlet (11) on its cylinder head and a first air inlet (12) on its cylinder body. The negative pressure cylinder (2) includes a second air outlet (21) on its cylinder head and a second air inlet (22) on its cylinder body. The first air outlet (11) is connected to the air inlet of the molecular sieve (3), and the second air inlet (22) is connected to the nitrogen discharge port of the molecular sieve (3).

2. The connection structure between the compressor and the molecular sieve according to claim 1, characterized in that: The first air inlet (12) and / or the second air outlet (21) are connected to the muffler (4).

3. The connection structure between the compressor and the molecular sieve according to claim 1, characterized in that: A first four-way pipe (5) is connected between the first air outlet (11) and the second air outlet (21). A first barrier is provided inside the first four-way pipe (5) to block the communication between the first air outlet (11) and the second air outlet (21).

4. The connection structure between the compressor and the molecular sieve according to claim 1 or 3, characterized in that: A second four-way pipe (6) is connected between the first air inlet (12) and the second air inlet (22). A second barrier is provided inside the second four-way pipe (6) to block the communication between the first air inlet (12) and the second air inlet (22).

5. The connection structure between the compressor and the molecular sieve according to claim 1, characterized in that: The bottom of the positive pressure cylinder (1) is provided with a first vibration damping part, and the bottom of the negative pressure cylinder (2) is provided with a second vibration damping part.

6. The connection structure between the compressor and the molecular sieve according to claim 5, characterized in that: The first damping part includes two first spring pads (7), and the bottom of the positive pressure cylinder (1) has two first legs (13), and the first legs (13) are detachably connected to the corresponding first spring pads (7).

7. The connection structure between the compressor and the molecular sieve according to claim 5, characterized in that: The second damping part includes two second spring pads (8), and the bottom of the negative pressure cylinder (2) has two second legs (23), which are detachably connected to the corresponding second spring pads (8).

8. The connection structure between the compressor and the molecular sieve according to claim 6, characterized in that: The damping coefficient or elastic coefficient of the first damping part is greater than that of the second damping part.

9. The connection structure between the compressor and the molecular sieve according to claim 1, characterized in that: Both the first air outlet (11) and the second air outlet (21) are connected to a first L-shaped tube, and a first bracket is connected between the two first L-shaped tubes.

10. The connection structure between the compressor and the molecular sieve according to claim 1, characterized in that: A second L-shaped tube is connected to both the first air inlet (12) and the second air inlet (22), and a second bracket is connected between the two second L-shaped tubes.

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