Noise reduction assembly for oxygen generator

Abstract

The utility model relates to a noise reduction assembly for an oxygen generator. The oxygen generator comprises an oxygen generator shell, a compressor shell arranged in the oxygen generator shell, an air compressor arranged in the compressor shell, a tension spring hoisting assembly arranged at the top in the compressor shell and used for hoisting the compressor, and a tension spring pull-down assembly arranged at the bottom of the top in the compressor shell and used for pulling down the compressor. The tension spring hoisting assembly is matched with the tension spring pull-down assembly, so that the compressor can be quickly disassembled, assembled and limited; the compressor is tensioned up and down through the tension spring hoisting assembly and the tension spring pull-down assembly, shock absorption and noise reduction can be achieved, shaking during transportation can be greatly reduced, damage to the compressor is avoided, and the disassembly and assembly efficiency of the compressor can be effectively improved through rapid fixing and limiting cooperation of the tension spring hoisting assembly and the tension spring pull-down assembly; and replacement and maintenance are convenient.

Description

Technical Field

[0001] This utility model relates to the field of noise reduction for oxygen concentrators, and specifically refers to a noise reduction component for oxygen concentrators. Background Technology

[0002] Molecular sieve oxygen concentrators have a very broad market application prospect, not only for medical treatment of hypoxic diseases but also for oxygen therapy and health care. However, due to the relatively high noise level of the entire machine, market promotion is quite difficult. The noise mainly comes from the air compressor, and the mainstream measures to solve this problem are currently using vibration reduction and sound insulation structures. Sound insulation measures mainly involve sealing the compressor entirely inside a metal cover, with noise-absorbing sponges pasted on the inner wall of the metal cover. This structure can reduce the compressor's mid-to-high frequency noise (1kHz-15kHz) by 68%, but its effect on low-frequency noise reduction is limited. Low-frequency noise mainly comes from the compressor's vibration noise, and using spring vibration damping is a common method for compressor noise reduction. Most oxygen concentrator compressors on the market use vibration damping springs installed at the compressor base. The elastic deformation of the springs offsets the compressor's vibration, preventing the vibration waves from being transmitted to the base and casing.

[0003] Traditional shock-absorbing springs are fixed at one end to the compressor base and at the other end to the oxygen concentrator bracket. Due to deviations in the compressor base hole positions, spring deformation, and the pulling effect of the compressor's wires and intake / exhaust pipes, the compressor's center of gravity is biased upwards, causing swaying. This makes it difficult to ensure consistent force on the spring, making it hard to counteract the vibration waves generated by the compressor's operation, resulting in poor shock absorption and noise reduction.

[0004] While the existing technology 201921048090.6 discloses a vibration damping and noise reduction structure for an oxygen concentrator, it solves the above problems. However, the tension spring is connected to the compressor by bolts, which makes disassembly and assembly cumbersome. Furthermore, since the compressor is suspended, it is prone to shaking during transportation, which can cause it to impact the outer casing and damage the compressor, thus affecting oxygen production. Utility Model Content

[0005] The purpose of this invention is to overcome the shortcomings of the prior art and provide a noise reduction component for an oxygen generator.

[0006] To achieve the above objectives, the technical solution adopted by this utility model is: a noise reduction component for an oxygen generator, comprising an oxygen generator housing, a compressor housing disposed within the oxygen generator housing, an air compressor disposed within the compressor housing, a tension spring lifting assembly disposed at the top of the compressor housing for suspending the compressor, and a tension spring pulling assembly disposed at the top and bottom of the compressor housing for pulling down the compressor; the tension spring lifting assembly and the tension spring pulling assembly cooperate to quickly disassemble and limit the compressor.

[0007] Preferably, the tension spring hoisting assembly includes two support rods disposed on both sides of the top of the compressor housing, a support plate disposed inside the compressor housing for supporting the compressor, four first tension springs with one end disposed at the four corners of the support plate and the other end connected to the two support rods, and four positioning pins disposed on the top surface of the support plate for insertion into the four corner holes of the bottom support base of the compressor.

[0008] Preferably, the support plate is a sound-absorbing plate.

[0009] Preferably, the tension spring pull-down assembly includes eight telescopic plates respectively disposed on both sides of the four positioning pins and each end of the plate penetrates through the support plate; eight telescopic grooves corresponding to the support plate for the telescopic plates to extend and retract; eight connecting plates respectively disposed on two opposite sides of the eight telescopic plates, located between the top and bottom ends of the support plate and connected to the eight telescopic plates; four pins respectively disposed on the four sides of the connecting plates on the top surface of the support plate facing the four insertion holes of the compressor support base for insertion into the four positioning pins; and four second tension springs, one end of which is connected to the other four connecting plates on the side facing the bottom of the compressor housing and the other end of which is connected to the bottom of the compressor housing.

[0010] Preferably, the eight telescopic grooves are long grooves that facilitate the translation of the eight telescopic plates.

[0011] Due to the application of the above technical solution, this utility model has the following advantages compared with the prior art:

[0012] This invention uses a tension spring lifting assembly and a tension spring pull-down assembly to tighten the compressor vertically, which not only reduces vibration and noise but also significantly reduces shaking during transportation, thereby preventing damage to the compressor. Furthermore, the quick-fixing and limiting cooperation between the tension spring lifting assembly and the tension spring pull-down assembly effectively improves the efficiency of compressor disassembly and assembly, facilitating replacement and maintenance. Attached Figure Description

[0013] The technical solution of this utility model will be further described below with reference to the accompanying drawings:

[0014] Appendix Figure 1 This is a partial cross-sectional view of the internal structure of the compressor housing end face of the noise reduction component for the oxygen generator described in this utility model.

[0015] Appendix Figure 2 The noise reduction component for an oxygen concentrator described in this utility model Figure 1 A magnified structural diagram at point A;

[0016] Appendix Figure 3 This is a schematic diagram of the internal structure of the compressor housing of the noise reduction component for the oxygen generator described in this utility model.

[0017] The components are: 1. Oxygen generator housing; 2. Compressor housing; 3. Compressor; 4. Tension spring hoisting assembly; 41. Support rod; 42. Support plate; 43. First tension spring; 44. Positioning pin; 5. Tension spring pull-down assembly; 51. Telescopic plate; 52. Telescopic groove; 53. Connecting plate; 54. Pin rod; 55. Second tension spring. Detailed Implementation

[0018] The present invention will now be described in further detail with reference to the accompanying drawings and specific embodiments.

[0019] Appendix Figure 1-3 The noise reduction component for an oxygen concentrator according to this utility model includes an oxygen concentrator housing 1, a compressor housing 2 disposed within the oxygen concentrator housing 1, an air compressor 3 disposed within the compressor housing 2, a tension spring lifting assembly 4 disposed at the top of the compressor housing 2 for suspending the air compressor 3, and a tension spring pulling assembly 5 disposed at the top and bottom of the compressor housing 2 for pulling down the air compressor 3. The tension spring lifting assembly 4 and the tension spring pulling assembly 5 cooperate to quickly detach and limit the air compressor 3. The tension spring lifting assembly 4 includes two support rods 41 disposed on both sides of the top of the compressor housing 2, a support plate 42 disposed within the compressor housing 2 for supporting the air compressor 3, four first tension springs 43 respectively disposed at the four corners of the support plate 42 and respectively connected to the two support rods 41 at the other end, and respectively disposed on the top surface of the support plate 42 for insertion into the air compressor. 3. Four positioning pins 44 are inserted into the four corner holes of the bottom support base; the tension spring pull-down assembly 5 includes eight telescopic plates 51 respectively disposed on both sides of the four positioning pins 44 and one end of each plate penetrates through the support plate 42; eight telescopic grooves 52 correspondingly disposed on the support plate 42 for the telescopic plates 51 to telescopically extend and retract; eight connecting plates 53 respectively disposed on two opposite sides of the eight telescopic plates 51 located between the top and bottom ends of the support plate 42 and respectively connected to the eight telescopic plates 51; four pin rods 54 respectively disposed on the four sides of the top surface of the eight connecting plates 53 facing the four insertion holes of the air compressor 3 support base for insertion into the four positioning pins 44; and four second tension springs 55 respectively connected at one end to the other four connecting plates 53 facing the bottom of the compressor housing 2 and at the other end to the bottom of the compressor housing 2.

[0020] Furthermore, the support plate 42 is a sound-absorbing plate that absorbs noise generated by vibration.

[0021] Furthermore, the eight telescopic grooves 52 are long grooves that facilitate the translation of the eight telescopic plates 51, thus avoiding affecting disassembly and assembly.

[0022] In use: First, slide the telescopic plate 51 located in the eight telescopic grooves 52 on the support plate 42 towards the other end of the telescopic grooves 52. Then, insert the four holes on the bottom support base of the air compressor 3 into the four positioning pins 44 on the support plate 42 to restrict the left and right position of the air compressor 3. Then, pull the telescopic plate 51 upward so that the distance between the pin 54 on the connecting plate 53 and the support plate 42 is higher than the height of the bottom support base of the air compressor 3. Then, move the telescopic plate 51 towards the air compressor 3. When the pin 54 on the connecting plate 53 is aligned with the positioning pin 44 in the insertion hole of the bottom support base of the air compressor 3, press down the telescopic plate 51 so that the connecting plate 53 fits against the bottom support base of the air compressor 3 and the pin 54 is inserted into the positioning pin 44. Due to the second tension spring 55 pressing down on the telescopic plate 51 and the connecting plate 53... The air compressor 3 is also limited in its vertical movement due to the tension of the pin 54 inserted into the positioning pin 44. Furthermore, the telescopic plate 51 and connecting plate 53 are also limited in their left and right movement due to the insertion of the pin 54 into the positioning pin 44. Consequently, the air compressor 3 is positioned on the support plate 42. When the air compressor 3 is working, the vibration waves are transmitted to the first tension spring 43. Because the air compressor 3 is suspended, the force on each first tension spring 43 is very uniform. The elastic deformation characteristics of the tension springs continuously cancel out the vibration waves generated by the air compressor 3, preventing the vibration waves from being transmitted to the support rod 41 and the compressor housing 2. This isolates the propagation path of vibration noise and plays a role in noise reduction. During subsequent transportation and handling, the tension generated by the first tension spring 43 and the second tension spring 55 on the air compressor 3 can effectively reduce the amplitude of the air compressor 3's swaying, thereby preventing collisions with the compressor housing 2.

[0023] The above are merely specific application examples of this utility model and do not constitute any limitation on the scope of protection of this utility model. All technical solutions formed by equivalent transformations or equivalent substitutions fall within the scope of protection of this utility model.

Claims

1. A noise reduction component for an oxygen concentrator, characterized in that: The system includes an oxygen generator housing, a compressor housing located inside the oxygen generator housing, an air compressor located inside the compressor housing, a tension spring lifting assembly located at the top of the compressor housing for lifting the compressor, and a tension spring pull-down assembly located at the top and bottom of the compressor housing for pulling down the compressor; the tension spring lifting assembly and the tension spring pull-down assembly work together to quickly assemble and disassemble the compressor.

2. The noise reduction component for an oxygen concentrator according to claim 1, characterized in that: The tension spring hoisting assembly includes two support rods set on both sides of the top inside the compressor housing, a support plate set inside the compressor housing to support the compressor, four first tension springs with one end set at each of the four corners of the support plate and the other end connected to the two support rods, and four positioning pins set on the top surface of the support plate for insertion into the four corner holes of the bottom support base of the compressor.

3. The noise reduction component for an oxygen concentrator according to claim 2, characterized in that: The support plate is a sound-absorbing plate.

4. The noise reduction component for an oxygen concentrator according to claim 1, characterized in that: The tension spring pull-down assembly includes eight telescopic plates respectively disposed on both sides of the four positioning pins and each end of the plate penetrates through the support plate; eight telescopic grooves corresponding to the support plate for the telescopic plates to extend and retract; eight connecting plates respectively disposed on two opposite sides of the eight telescopic plates, located between the top and bottom ends of the support plate and connected to the eight telescopic plates; four pins respectively disposed on the four sides of the connecting plates on the top surface of the support plate facing the four insertion holes of the compressor support base, for insertion into the four positioning pins; and four second tension springs, one end of which is connected to the other four connecting plates on the side facing the bottom of the compressor housing and the other end of which is connected to the bottom of the compressor housing.

5. The noise reduction component for an oxygen concentrator according to claim 4, characterized in that: The eight telescopic grooves are long grooves that facilitate the horizontal movement of the eight telescopic plates.

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