Air inlet silencer for oxygen generator

Abstract

The air inlet silencer comprises a silencing box body, the silencing box body is formed by buckling a lower shell and an upper shell, a first partition plate and a second partition plate are arranged in the silencing box body and divide an inner cavity of the silencing box body into a dehumidification cavity, a silencing cavity and a flow guide cavity, the upper shell is provided with an air inlet pipe communicated with the dehumidification cavity, and an air outlet pipe communicated with the silencing cavity is arranged in the silencing box body. The lower shell is provided with an air outlet pipe communicated with the flow guide cavity, a dehumidification structure is arranged in the dehumidification cavity, a silencing structure is arranged in the silencing cavity, the first partition plate is provided with an air inlet hole, the second partition plate is provided with an air outlet hole, a flow guide structure is arranged in the flow guide cavity, and airflow exhausted from the air outlet hole is guided and blown to the air outlet pipe under the flow guide effect of the flow guide structure; the upper shell is provided with a humidity detection device; and the humidity detection device is used for detecting and indicating the humidity of water vapor contained in the dehumidification structure. The device has the effects that noise can be effectively reduced, air entering the air inlet pipe can be dehumidified and dried, and the water vapor humidity of the dehumidification structure is detected and indicated in real time so that replacement can be conveniently reminded.

Description

Technical Field

[0001] The utility model relates to the technical field of oxygen concentrator silencers, in particular to an air intake silencer for an oxygen concentrator. Background Art

[0002] A medical oxygen machine is a medical device that filters air through an air filter to remove impurities, then compresses the air through a compressor, humidifies the compressed air through a humidifier to keep the patient's respiratory tract moist, then filters it through a purifier to remove harmful substances such as bacteria and viruses, and finally separates pure oxygen through an oxygen separator, which then enters the patient's respiratory tract through an oxygen tube to supplement oxygen for the patient.

[0003] However, since it needs to compress the air, the oxygen machine will generate a lot of noise when working, and some of the noise will be released through the air inlet of the oxygen machine, which is not conducive to keeping the patient in a good mood, and may even increase the psychological burden of the patient and affect the treatment effect. At the same time, there is water vapor mixed in the air, which cannot be compressed, increasing the workload of the oxygen machine. Therefore, it is urgent to develop an air intake muffler that reduces the noise release of the air inlet of the oxygen machine and prevents water vapor from entering the oxygen machine. Utility Model Content

[0004] The utility model aims to provide an air intake silencer for an oxygen concentrator, which has the effects of effectively reducing noise, dehumidifying and drying the air entering the air intake pipe, and detecting and indicating the water vapor humidity of the dehumidification structure in real time to facilitate reminder for replacement.

[0005] The above technical objectives of the utility model are achieved through the following technical solutions: an air intake silencer for an oxygen concentrator, comprising a silencer box body, the silencer box body being formed by buckling a lower shell and an upper shell, the silencer box body being provided with a first partition and a second partition, the first partition and the second partition dividing the inner cavity of the silencer box body into a dehumidification chamber, a silencer chamber and a guide chamber, the upper shell being provided with an air inlet pipe communicating with the dehumidification chamber, the lower shell being provided with an air outlet pipe communicating with the guide chamber, a dehumidification structure being provided in the dehumidification chamber, a silencer structure being provided in the silencer chamber, an air inlet hole being provided on the first partition, an air outlet hole being provided on the second partition, one end of the silencer chamber being communicated with the dehumidification chamber through the air inlet hole, the other end of the silencer chamber being communicated with the guide chamber through the air outlet hole, a guide structure being provided in the guide chamber, and the airflow discharged from the air outlet hole being guided to blow toward the air outlet pipe under the guide action of the guide structure;

[0006] The upper shell is provided with a humidity detection device, and the humidity detection device is used to detect and indicate the water vapor humidity contained in the dehumidification structure.

[0007] By adopting the above technical scheme, gas enters the dehumidification chamber through the air inlet pipe, water vapor contained in the air is filtered and adsorbed by the dehumidification structure in the dehumidification chamber, and the dry air enters the silencer chamber through the air inlet hole of the first partition, and then enters the guide chamber through the air outlet hole of the second partition, and is guided to be blown to the air outlet pipe under the guiding action of the guide structure in the guide chamber. At the same time, the utility model arranges a humidity detection device on the upper shell body, and uses the humidity detection device to detect the humidity of water vapor absorbed in the dehumidification structure to judge the water vapor saturation in the dehumidification structure, so as to facilitate the operator to judge whether the dehumidification structure needs to be replaced. In addition, the air outlet pipe is connected to the air intake device, and the noise transmitted from the air inlet of the air intake device enters the air outlet pipe. The noise in the air outlet pipe is transmitted back to the silencer chamber through the guide chamber and the air outlet hole. The noise can be effectively eliminated by using the silencer structure in the silencer chamber, thereby achieving the effect of noise reduction. The utility model has the effects of effectively reducing noise, being able to dehumidify and dry the air entering the air inlet pipe, and detecting and indicating the water vapor humidity of the dehumidification structure in real time for convenient reminder of replacement.

[0008] The utility model is further configured as follows: the air inlet pipe and the air outlet pipe are relatively staggeredly arranged at the upper and lower ends of the muffler box body.

[0009] By adopting the above technical solution, the air inlet pipe and the air outlet pipe are respectively arranged at the upper and lower diagonals of the upper shell and the lower shell, so that the distance for air to enter from the air inlet pipe and be discharged from the air outlet pipe is increased, which is beneficial to slow down and evenly distribute the air flow rate when it is discharged from the air outlet pipe to the air intake device, ensure the consistency of the air intake amount entering the air intake device per unit time, and thus improve the running smoothness of the air intake device.

[0010] The utility model is further configured as follows: the dehumidification structure includes water vapor absorption cotton arranged in the dehumidification chamber, and the water vapor absorption cotton is used to absorb water vapor entering the dehumidification chamber from the air inlet pipe.

[0011] By adopting the above technical solution, the water vapor absorption cotton can effectively remove the water vapor entering the dehumidification chamber from the air intake pipe, thereby ensuring that the gas entering the silencer chamber from the air intake hole is dry, which can effectively prevent the silencer structure from getting damp and mildewed, and at the same time prevent water vapor from entering the air intake device and causing damage to the equipment.

[0012] The utility model is further configured as follows: the silencer box body is provided with a clamping plate assembly in the dehumidification chamber, the clamping plate assembly divides the dehumidification chamber into a first chamber and a second chamber, the clamping plate assembly includes a first clamping mesh plate and a second clamping mesh plate arranged opposite to each other, and an installation gap is formed between the first clamping mesh plate and the second clamping mesh plate for the water vapor absorption cotton to be filled.

[0013] By adopting the above technical solution, the installation gap between the first clamping mesh plate and the second clamping mesh plate can facilitate the installation of water vapor absorbing cotton. When the water vapor absorbing cotton absorbs water to saturation, the water vapor absorbing cotton in the installation gap can be replaced by separating the upper shell and the lower shell, thereby improving the installation stability and convenience of the water vapor absorbing cotton.

[0014] The utility model is further configured as follows: the humidity detection device includes a humidity sensor, a control panel and a plurality of signal indicator lights; the humidity sensor is used to detect the humidity in the water vapor absorption cotton and is electrically connected to the corresponding signal indicator lights through the control panel.

[0015] By adopting the above technical solution, when the humidity in the water vapor absorption cotton is below the threshold, the humidity sensor detects the humidity signal of the water vapor absorption cotton and feeds back to the control board, and the control board controls the signal indicator light of the corresponding normal working signal to light up. When the humidity in the water vapor absorption cotton reaches the threshold, the humidity sensor detects the signal of excessive humidity and feeds back to the control board, and the control board controls the signal indicator light of the corresponding warning signal to remind the operator to replace the water vapor absorption cotton on time.

[0016] The utility model is further configured as follows: the silencing structure includes silencing cotton filled in the silencing cavity.

[0017] By adopting the above technical solution, the sound-absorbing cotton can effectively absorb the noise transmitted from the air inlet of the air intake equipment, thereby achieving the purpose of reducing noise.

[0018] The utility model is further configured as follows: the air inlet and the air outlet are arranged on the first partition plate and the second partition plate in a relatively staggered manner.

[0019] By adopting the above technical solution, the air inlet and air outlet holes are staggered, so that the noise propagates over a longer distance in the silencer cavity, thereby improving the noise reduction effect.

[0020] The utility model is further configured as follows: the guide structure includes a third partition plate arranged in the guide cavity, a plurality of guide holes are formed on a side of the third partition plate away from the air inlet hole, a spiral guide tube is extended from the third partition plate toward a side of the air outlet pipe, and the guide holes are connected to the air outlet pipe through the spiral guide tube.

[0021] By adopting the above technical solution, the airflow in the guide cavity enters the spiral guide tube through the guide hole, and the spiral guide tube can rectify the airflow inside it, so that the airflow entering the outlet pipe from the outlet of the spiral guide tube becomes more uniform.

[0022] The utility model is further configured as follows: a clamping portion is extended from the upper end of the lower shell, a clamping slot is opened at the lower end of the upper shell corresponding to the clamping portion, and the clamping portion is clamped and matched with the clamping slot.

[0023] By adopting the above technical solution, the degree of sealing between the upper shell and the lower shell can be improved, and the sealing of the dehumidification chamber, the silencer chamber and the guide chamber can be ensured.

[0024] In summary, the utility model has the following beneficial effects:

[0025] The upper shell and the lower shell are buckled together to form a silencer box body, and a first partition and a second partition are arranged in the silencer box body. The first partition and the second partition divide the inner cavity of the silencer box body into a dehumidification chamber, a silencer chamber and a guide chamber. At the same time, an air inlet pipe connected to the dehumidification chamber is arranged on the upper shell, and an air outlet pipe connected to the guide chamber is arranged on the lower shell. A dehumidification structure is arranged in the wet chamber, a silencer structure is arranged in the silencer chamber, and a guide chamber is arranged in the guide chamber. The first partition is provided with an air inlet hole, and the second partition is provided with an air outlet hole. In addition, a humidity detection device is arranged on the upper shell, and the humidity detection device is used to detect the humidity of the dehumidification structure. The moisture saturation in the dehumidification structure is judged by the moisture humidity absorbed inside, so that the operator can judge whether the dehumidification structure needs to be replaced. In addition, the air outlet pipe is connected to the air intake device, and the noise from the air inlet of the air intake device enters the air outlet pipe. The noise in the air outlet pipe is transmitted back to the silencer cavity through the guide cavity and the air outlet. The noise can be effectively eliminated by the silencer structure in the silencer cavity, thereby achieving the purpose of noise reduction. It has the effects of effectively reducing noise, dehumidifying and drying the air entering the air intake pipe, and detecting and indicating the moisture humidity of the dehumidification structure in real time to facilitate reminder for replacement. BRIEF DESCRIPTION OF THE DRAWINGS

[0026] Figure 1 It is a structural diagram of the utility model.

[0027] Figure 2 It is a bottom view of the utility model.

[0028] Figure 3 This utility model Figure 2 Cross-sectional view of section AA.

[0029] Figure 4 It is an exploded view of the utility model.

[0030] Figure 5 It is an exploded view of the utility model from another perspective.

[0031] In the figure: 1. Silencer box body; 1a. Dehumidification chamber; 1a1. First chamber; 1a2. Second chamber; 1b. Silencer chamber; 1c. Diversion chamber; 11. Upper shell; 11a. Card slot; 111. Inlet pipe; 112. First clamping mesh plate; 113. Second clamping mesh plate; 12. Lower shell; 121. Outlet pipe; 122. Card connection; 2. First partition; 2a. Inlet hole; 3. Second partition; 3a. Outlet hole; 4. Third partition; 4a. Diversion hole; 5. Humidity sensor; 51. Control panel; 52. Signal indicator light; 6. Water vapor absorption cotton; 7. Silencer cotton; 8. Spiral diversion pipe. DETAILED DESCRIPTION

[0032] The utility model is further described below in conjunction with the accompanying drawings.

[0033] An air intake silencer for an oxygen concentrator, such as Figure 1-3 As shown, it includes a silencer box body 1, which is formed by buckling a lower shell 12 and an upper shell 11. A first partition 2 and a second partition 3 are provided in the silencer box body 1. The first partition 2 and the second partition 3 divide the inner cavity of the silencer box body 1 into a dehumidification chamber 1a, a silencer chamber 1b and a guide chamber 1c. The upper shell 11 is provided with an air inlet pipe 111 connected to the dehumidification chamber 1a, and the lower shell 12 is provided with an air outlet pipe 121 connected to the guide chamber 1c. A dehumidification structure is provided in the dehumidification chamber 1a, and a silencer structure is provided in the silencer chamber 1b. The first partition 2 is provided with an air inlet hole 2a, and the second partition 3 is provided with an air outlet hole 3a. One end of the silencer chamber 1b is connected to the dehumidification chamber 1a through the air inlet hole 2a, and the other end of the silencer chamber 1b is connected to the guide chamber 1c through the air outlet hole 3a. The air flow discharged from the air outlet 3a is guided to the air outlet pipe 121 under the guiding effect of the air guide structure; the upper shell 11 is provided with a humidity detection device, which is used to detect and indicate the moisture humidity contained in the dehumidification structure; the air inlet pipe 111 and the air outlet pipe 121 in this embodiment are relatively staggered and arranged at the upper and lower ends of the silencer box body 1, so that the air inlet pipe 111 and the air outlet pipe 121 are respectively arranged at the upper and lower diagonals of the upper shell 11 and the lower shell 12, so that the stroke of air entering from the air inlet pipe 111 and being discharged from the air outlet pipe 121 is increased, which is conducive to slowing down and evenly discharging the air flow rate from the air outlet pipe 121 to the air intake device, ensuring the consistency of the air intake amount entering the air intake device per unit time, and thereby improving the running stability of the air intake device.

[0034] like Figure 3-5As shown, the dehumidification structure includes a water vapor absorption cotton 6 arranged in the dehumidification chamber 1a, and the water vapor absorption cotton 6 is used to absorb the water vapor entering the dehumidification chamber 1a from the air inlet pipe 111. The water vapor absorption cotton 6 can effectively absorb the water vapor entering the dehumidification chamber 1a from the air inlet pipe 111, thereby ensuring that the gas entering the silencer chamber 1b from the air inlet hole 2a is dry, which can effectively prevent the silencer structure from being damp and moldy, and at the same time prevent water vapor from entering the air inlet device and causing damage to the device; the silencer box body 1 is provided with a splint assembly in the dehumidification chamber 1a The clamping plate assembly separates the dehumidification chamber 1a into a first chamber 1a1 and a second chamber 1a2. The clamping plate assembly includes a first clamping mesh plate 112 and a second clamping mesh plate 113 that are arranged opposite to each other. An installation gap for filling the water vapor absorbent cotton 6 is formed between the first clamping mesh plate 112 and the second clamping mesh plate 113. The installation gap between the first clamping mesh plate 112 and the second clamping mesh plate 113 can facilitate the installation of the water vapor absorbent cotton 6. When the water vapor absorbent cotton 6 absorbs water to saturation, the upper shell 11 and the lower shell 12 are connected. By separating them from each other, the water vapor absorption cotton 6 in the installation gap can be replaced, which improves the installation stability and convenience of the water vapor absorption cotton 6; the humidity detection device includes a humidity sensor 5, a control board 51 and a plurality of signal indicator lights 52, the humidity sensor 5 is used to detect the humidity in the water vapor absorption cotton 6, and is electrically connected to the corresponding signal indicator light 52 through the control board 51, when the humidity in the water vapor absorption cotton 6 is below the threshold, the humidity sensor 5 detects the humidity signal of the water vapor absorption cotton 6 and feeds it back to the control board 51, the control board 51 controls the corresponding normal working signal signal indicator light 52, when the humidity in the water vapor absorption cotton 6 reaches the threshold, the humidity sensor 5 detects the humidity exceeding the standard signal and feeds it back to the control board 51, the control board 51 controls the corresponding warning signal indicator light 52 to remind the operator to replace the water vapor absorption cotton 6 on time; the silencer structure includes silencer cotton 7 filled in the silencer cavity 1b, the silencer cotton 7 can effectively absorb the noise transmitted from the air inlet of the air intake device to achieve the purpose of reducing noise.

[0035] like Figure 4-5As shown, the air inlet 2a and the air outlet 3a are relatively staggered and arranged on the corresponding first baffle 2 and second baffle 3. The staggered air inlet 2a and the air outlet 3a make the noise propagation distance in the silencing chamber 1b larger, thereby improving the noise reduction effect; the guide structure includes a third baffle 4 arranged in the guide chamber 1c, and a plurality of guide holes 4a are opened on the side of the third baffle 4 away from the air inlet 2a. A spiral guide pipe 8 is extended on the side of the third baffle 4 toward the outlet pipe 121, and the guide hole 4a is connected with the outlet pipe 121 through the spiral guide pipe 8. The guide chamber The airflow in 1c enters the spiral guide tube 8 through the guide hole 4a, and the spiral guide tube 8 can rectify the airflow inside it, so that the airflow entering the outlet pipe 121 from the outlet of the spiral guide tube 8 becomes more uniform; a clamping portion 122 is extended from the upper end of the lower shell 12, and a clamping groove 11a is adapted to correspond to the clamping portion 122 at the lower end of the upper shell 11. The clamping portion 122 is clamped with the clamping groove 11a, which can improve the clamping sealing degree between the upper shell 11 and the lower shell 12, and ensure the sealing of the dehumidification chamber 1a, the silencer chamber 1b and the guide chamber 1c.

[0036] The basic working principle of the utility model is as follows: the gas enters the dehumidification chamber 1a through the air inlet pipe 111, the water vapor mixed in the air is filtered and adsorbed by the dehumidification structure in the dehumidification chamber 1a, the dry air enters the silencer chamber 1b through the air inlet hole 2a of the first partition plate 2, and then enters the guide chamber 1c through the air outlet hole 3a of the second partition plate 3, and is guided to the air outlet pipe 121 under the guidance of the guide structure in the guide chamber 1c. At the same time, the utility model sets a humidity detection device on the upper shell 11, and uses the humidity detection device to detect the humidity of the water vapor absorbed in the dehumidification structure to judge the humidity in the dehumidification structure. The water vapor saturation is convenient for the operator to judge whether the dehumidification structure needs to be replaced. In addition, the air outlet pipe 121 is connected to the air intake device, and the noise transmitted from the air inlet of the air intake device enters the air outlet pipe 121. The noise in the air outlet pipe 121 is transmitted back to the silencer chamber 1b through the guide cavity 1c and the air outlet 3a. The noise can be effectively eliminated by the silencer structure in the silencer chamber 1b, thereby achieving the effect of noise reduction. The utility model has the effects of effectively reducing noise, dehumidifying and drying the air entering the air intake pipe 111, and detecting and indicating the water vapor humidity of the dehumidification structure in real time for convenient reminder of replacement.

[0037] The above description is only a preferred embodiment of the present utility model, so all equivalent changes or modifications made according to the structure, features and principles described in the scope of the present utility model patent application are included in the scope of the present utility model patent application.

Claims

1. An air intake silencer for an oxygen concentrator, comprising a silencer box body (1), wherein the silencer box body (1) is formed by buckling a lower shell body (12) and an upper shell body (11), and is characterized in that: The muffler box body (1) is provided with a first partition plate (2) and a second partition plate (3), the first partition plate (2) and the second partition plate (3) divide the inner cavity of the muffler box body (1) into a dehumidification cavity (1a), a muffler cavity (1b) and a flow guide cavity (1c), the upper shell (11) is provided with an air inlet pipe (111) connected to the dehumidification cavity (1a), the lower shell (12) is provided with an air outlet pipe (121) connected to the flow guide cavity (1c), the dehumidification cavity (1a) is provided with a dehumidification structure, the muffler cavity (1b) is provided with a dehumidification structure, and the muffler cavity (1b) is provided with a dehumidification structure. A silencer structure is provided, the first baffle plate (2) is provided with an air inlet hole (2a), the second baffle plate (3) is provided with an air outlet hole (3a), one end of the silencer chamber (1b) is connected with the dehumidification chamber (1a) through the air inlet hole (2a), and the other end of the silencer chamber (1b) is connected with the flow guide chamber (1c) through the air outlet hole (3a), a flow guide structure is provided in the flow guide chamber (1c), and the airflow discharged from the air outlet hole (3a) is guided to blow toward the air outlet pipe (121) under the flow guide effect of the flow guide structure; The upper shell (11) is provided with a humidity detection device, and the humidity detection device is used to detect and indicate the humidity of water vapor contained in the dehumidification structure.

2. The oxygen concentrator air intake silencer according to claim 1, characterized in that: The air inlet pipe (111) and the air outlet pipe (121) are arranged at the upper and lower ends of the muffler box body (1) in a relatively staggered manner.

3. The air intake silencer for an oxygen concentrator according to claim 1, characterized in that: The dehumidification structure comprises water vapor absorption cotton (6) arranged in the dehumidification chamber (1a), and the water vapor absorption cotton (6) is used to absorb water vapor entering the dehumidification chamber (1a) from the air inlet pipe (111).

4. The air intake silencer for an oxygen concentrator according to claim 3, characterized in that: The silencer box body (1) is provided with a clamping plate assembly in the dehumidification chamber (1a), and the clamping plate assembly divides the dehumidification chamber (1a) into a first chamber (1a1) and a second chamber (1a2). The clamping plate assembly includes a first clamping mesh plate (112) and a second clamping mesh plate (113) arranged opposite to each other, and an installation gap for filling the water vapor absorption cotton (6) is formed between the first clamping mesh plate (112) and the second clamping mesh plate (113).

5. The air intake silencer for an oxygen concentrator according to claim 3, characterized in that: The humidity detection device comprises a humidity sensor (5), a control panel (51) and a plurality of signal indicator lights (52); the humidity sensor (5) is used to detect the humidity in the water vapor absorbing cotton (6) and is electrically connected to the corresponding signal indicator lights (52) through the control panel (51).

6. The air intake silencer for an oxygen concentrator according to claim 1, characterized in that: The noise reduction structure comprises noise reduction cotton (7) filled in the noise reduction cavity (1b).

7. The air intake silencer for an oxygen concentrator according to claim 1, characterized in that: The air inlet (2a) and the air outlet (3a) are arranged in a relatively staggered manner on the corresponding first partition plate (2) and second partition plate (3).

8. The air intake silencer for an oxygen concentrator according to claim 7, characterized in that: The flow guiding structure comprises a third partition plate (4) arranged in the flow guiding cavity (1c); a plurality of flow guiding holes (4a) are provided on a side of the third partition plate (4) away from the air inlet hole (2a); a spiral flow guiding pipe (8) is extended on a side of the third partition plate (4) toward the air outlet pipe (121); and the flow guiding holes (4a) are connected to the air outlet pipe (121) via the spiral flow guiding pipe (8).

9. The air intake silencer for an oxygen concentrator according to claim 1, characterized in that: A clamping portion (122) is extended from the upper end of the lower shell (12), and a clamping slot (11a) is provided at the lower end of the upper shell (11) to correspond to the clamping portion (122), and the clamping portion (122) is clamped and matched with the clamping slot (11a).

Images