Air pressure distribution device of medical molecular sieve oxygen production equipment

Abstract

The utility model belongs to the technical field of molecular sieve oxygen generators, and particularly relates to an air pressure distribution device of medical molecular sieve oxygen generating equipment, which comprises two molecular sieve adsorption towers, two oxygen delivery pipes, an air compressor and an air pressure distributor, the two sides of the air pressure distributor are each provided with an air inlet pipe and an air outlet pipe, the two air inlet pipes are each provided with an air inlet adjusting valve, the two air outlet pipes are each provided with an air outlet adjusting valve, and the two ends of the air pressure distributor are each provided with a cushioning spring; the two cushioning springs are used for buffering and absorbing energy of the air pressure distributor, so that the condition of resonance between the air pressure distributor and the molecular sieve adsorption tower is reduced, and the influence of vibration on the oxygen generator body is reduced; the air pressure distributor is connected with the molecular sieve adsorption tower through the metal braided hose, the displacement condition of the air pressure distributor in the buffering movement process is adapted by utilizing the deformable capacity of the metal braided hose, and stable connection is ensured.

Description

Technical Field

[0001] This utility model belongs to the technical field of molecular sieve oxygen generators, specifically relating to a gas pressure distribution device for medical molecular sieve oxygen generators. Background Technology

[0002] The core operation of medical molecular sieve oxygen generators relies on the precise control of gas pressure by a pressure distribution device. This ensures that the compressed air generated by the air compressor is accurately distributed to key components such as the molecular sieve adsorption tower at different stages, thereby achieving efficient and stable oxygen production. When the pressure distribution device distributes high-pressure compressed air to the adsorption tower or switches pressure between adsorption towers, the opening and closing of the inlet valve, outlet valve, and switching valve causes instantaneous changes in gas flow rate and pressure. Similar to water impacting a pipe, this causes slight vibrations in the pipes and connecting components. The rapid gas flow also exerts impact forces on the pipes and valves. Over time, this can have several adverse effects on the equipment. Continuous vibration accelerates the wear and tear of mechanical parts. The oxygen generator contains numerous electrical components; the solder joints on the circuit boards may loosen under vibration, leading to poor circuit contact and deviations in the equipment's control accuracy. Precision sensors such as pressure sensors and flow sensors will also experience reduced measurement accuracy due to vibration interference, and in severe cases, may even malfunction, causing disruption to the entire oxygen production process. Utility Model Content

[0003] This utility model provides a pressure distribution device for medical molecular sieve oxygen generators, which has the feature of reducing the impact of vibration on the efficiency of the oxygen generator during pressure distribution.

[0004] This utility model provides the following technical solution: it includes two molecular sieve adsorption towers, two oxygen delivery pipes, an air compressor, and a pressure distributor. A base and a connecting top plate are installed between the two molecular sieve adsorption towers. The pressure distributor is located between the two molecular sieve adsorption towers. An inlet pipe and an exhaust pipe are installed on both sides of the pressure distributor. An inlet regulating valve is installed on each of the two inlet pipes, and an exhaust regulating valve is installed on each of the two exhaust pipes. Shock-absorbing springs are installed at both ends of the pressure distributor. The lower pressure distributor is installed at the top of the base, and the upper pressure distributor is installed at the bottom of the connecting top plate. Metal braided hoses are installed between the inlet pipe and the exhaust pipe and the molecular sieve adsorption tower.

[0005] The air compressor is equipped with a ventilation telescopic pipe at its bottom, which is installed at the top of the air pressure distributor and is connected to the inside of the air pressure distributor.

[0006] Both intake pipes are equipped with a pressure relief mechanism at their bottom ends. The pressure relief mechanism has an air-containing groove that communicates with the internal space of the intake pipe. Both intake pipes are equipped with a one-way valve that is located between the corresponding pressure relief mechanism and the corresponding intake regulating valve.

[0007] Piston plates are slidably connected to the inner walls of both gas-containing grooves, and compression springs are installed at the bottom ends of the piston plates. The compression springs are installed on the inner wall at the bottom end of the pressure relief mechanism.

[0008] The gas-carrying groove has two guide plates fixedly connected to its inner wall, and the piston plate has limit slots on both sides. The guide plates are slidably connected to the inner walls of the corresponding limit slots.

[0009] Both of the pressure relief mechanisms are equipped with electrically controlled telescopic rods at their bottom ends. Side support plates are installed on both sides of the air pressure distributor. The electrically controlled telescopic rods are installed on the top of the corresponding side support plates. A push plate is installed at the output end of the electrically controlled telescopic rods. The push plate is located inside the corresponding air duct. The push plate is in contact with the bottom end of the corresponding piston plate. The push plate is not in contact with the compression spring.

[0010] The pressure distributor is fitted with a limiting ring on its outer side, and several connecting rods are installed at the bottom end of the limiting ring. All of the connecting rods are installed at the top of the base.

[0011] The beneficial effects of this invention are as follows: Two damping springs buffer and absorb energy from the pressure distributor, reducing resonance between the distributor and the molecular sieve adsorption tower. This reduces the impact of vibration on the oxygen generator itself and solves the problem that after long-term use, the numerous electrical components inside the oxygen generator can cause the solder joints on the circuit board to loosen under vibration, leading to poor circuit contact and deviations in the equipment's control accuracy. Precision sensors such as pressure and flow sensors also experience reduced measurement accuracy due to vibration interference, and in severe cases, may even malfunction, causing disruption to the entire oxygen production process. Connecting the pressure distributor to the molecular sieve adsorption tower via a metal braided hose utilizes the hose's deformability to accommodate the distributor's displacement during buffering activities, ensuring a stable connection.

[0012] The parts of the device not covered herein are the same as or can be implemented using existing technologies. Attached Figure Description

[0013] Figure 1 This is a three-dimensional structural diagram of the present invention;

[0014] Figure 2 for Figure 1 Enlarged diagram of section A in the middle;

[0015] Figure 3 This is a three-dimensional enlarged cross-sectional structural diagram of the pressure relief mechanism in this utility model;

[0016] Figure 4 This is a three-dimensional enlarged structural schematic diagram of the limiting ring in this utility model.

[0017] In the diagram: 1. Molecular sieve adsorption tower; 11. Oxygen delivery pipe; 12. Base; 13. Connecting top plate; 2. Air compressor; 21. Ventilation telescopic pipe; 3. Air pressure distributor; 31. Inlet pipe; 311. Inlet regulating valve; 32. Exhaust pipe; 321. Exhaust regulating valve; 33. Shock-absorbing spring; 34. Metal braided hose; 35. Side support plate; 4. Pressure relief mechanism; 41. Gas container; 411. Guide plate; 42. Piston plate; 421. Limiting slot; 43. Compression spring; 44. Electrically controlled telescopic rod; 441. Push plate; 5. Limiting ring; 51. Connecting rod. Detailed Implementation

[0018] Please see Figures 1-4 The present invention provides the following technical solution: including two molecular sieve adsorption towers 1, two oxygen delivery pipes 11, an air compressor 2, and a pressure distributor 3. A base 12 and a connecting top plate 13 are installed between the two molecular sieve adsorption towers 1. The pressure distributor 3 is located between the two molecular sieve adsorption towers 1. An air inlet pipe 31 and an exhaust pipe 32 are installed on both sides of the pressure distributor 3. An air inlet regulating valve 311 is installed on each of the two air inlet pipes 31, and an exhaust regulating valve 321 is installed on each of the two exhaust pipes 32. A shock-absorbing spring 33 is installed at both ends of the pressure distributor 3. The lower pressure distributor 3 is installed at the top of the base 12, and the upper pressure distributor 3 is installed at the bottom of the connecting top plate 13. Metal braided hoses 34 are installed between the air inlet pipe 31 and the exhaust pipe 32 and the molecular sieve adsorption tower 1.

[0019] In this implementation scheme: two molecular sieve adsorption towers 1 alternately sieve the air supplied by the air compressor 2 to achieve continuous oxygen production. A base 12 supports the two molecular sieve adsorption towers 1, and the base 12 and connecting top plate 13 stably connect the two molecular sieve adsorption towers 1. The air compressor 2 distributes appropriate pressure to the two molecular sieve adsorption towers 1 through a pressure distributor 3. The pressure distributor 3 supplies air pressure to the two molecular sieve adsorption towers 1 through two air inlet pipes 31 and a metal braided hose 34. An air inlet regulating valve 31... The system enables the opening and closing of the inlet pipe 31 and adjusts its size, thus achieving a suitable airflow velocity for the molecular sieve adsorption tower 1. The two exhaust pipes 32 are not connected to the internal space of the pressure distributor 3. The molecular sieve adsorption tower 1 discharges filtered waste gas through the metal braided hose 34 and the exhaust pipes 32. The exhaust regulating valve 321 controls the opening and closing of the exhaust pipes 32. By opening the exhaust regulating valve 321, waste gas can be discharged from its opening, achieving the desired airflow velocity for the molecular sieve adsorption tower 1. In the circulating oxygen production of adsorption tower 1, the base 12 and connecting top plate 13 are elastically supported by two upper and lower damping springs 33. When the air pressure distributor 3 releases compressed air to the molecular sieve adsorption tower 1 through the air inlet pipe 31 and the air inlet regulating valve 311, the air pressure increases instantaneously in the molecular sieve adsorption tower 1, the metal braided hose 34 and the air inlet pipe 31. The air pressure impact generates vibration between the molecular sieve adsorption tower 1 and the air pressure distributor 3. The two damping springs 33 buffer and absorb energy for the air pressure distributor 3, reducing the impact of vibration. Furthermore, during the up and down movement of the air pressure distributor 3, the air pressure distributor 3 can be stably connected to the two molecular sieve adsorption towers 1 through the four metal braided hoses 34, reducing the resonance between the air pressure distributor 3 and the molecular sieve adsorption tower 1. This allows the two molecular sieve adsorption towers 1 to be used stably, thereby reducing the impact of vibration on the oxygen generator body. This also solves the problem that after long-term use, due to the large number of electrical components inside the oxygen generator, the solder joints on the circuit board may loosen under vibration, causing poor circuit contact and resulting in deviations in the control accuracy of the equipment. Precision sensors, such as pressure sensors and flow sensors, can also have their measurement accuracy reduced by vibration interference, and in severe cases, they may even malfunction, leading to problems that disrupt the entire oxygen production process.

[0020] An air compressor 2 is equipped with a ventilation telescopic pipe 21 at its bottom end. The ventilation telescopic pipe 21 is installed at the top of the air pressure distributor 3 and is connected to the inside of the air pressure distributor 3. The air compressor 2 is connected to the air pressure distributor 3 through the ventilation telescopic pipe 21, so that the air pressure distributor 3 can stably receive the compressed air inside the air compressor 2. While the air pressure distributor 3 is absorbing energy, the expansion and contraction of the ventilation telescopic pipe 21 can achieve a stable connection between the air compressor 2 and the air pressure distributor 3.

[0021] Both air inlet pipes 31 are equipped with pressure relief mechanisms 4 at their bottom ends. Each pressure relief mechanism 4 has a gas-containing groove 41, which is connected to the internal space of the air inlet pipe 31. Both air inlet pipes 31 are equipped with one-way valves, which are located between the corresponding pressure relief mechanism 4 and the corresponding air intake regulating valve 311. When the pressure distributor 3 releases high-pressure air into the molecular sieve adsorption tower 1, a portion of the high-pressure air can enter the pressure relief mechanism 4. The gas-containing groove 41 can temporarily store a portion of the air. After the air pressure stabilizes, the air pressure in the gas-containing groove 41 is sent into the molecular sieve adsorption tower 1, thereby mitigating the vibration caused by the instantaneous increase in air pressure and further reducing the vibration. When the air pressure in the gas-containing groove 41 is delivered into the molecular sieve adsorption tower 1, the one-way valve in the air inlet pipe 31 can prevent the air pressure from flowing back into the pressure distributor 3.

[0022] Piston plates 42 are slidably connected to the inner walls of both gas tanks 41. Compression springs 43 are installed at the bottom of the piston plates 42 and are installed on the inner wall of the bottom of the pressure relief mechanism 4. When the air pressure impacts the piston plates 42, the piston plates 42 slide downwards. The compression springs 43 buffer the air pressure. After the air pressure is smoothed out, the piston plates 42 push the air pressure into the molecular sieve adsorption tower 1 to further reduce the generation of vibration.

[0023] Two guide plates 411 are fixedly connected to the inner wall of the gas container 41. Limiting slots 421 are opened on both sides of the piston plate 42. The guide plates 411 are slidably connected to the inner wall of the corresponding limiting slots 421. The two guide plates 411 guide and limit the piston plate 42 through the two limiting slots 421 to prevent the piston plate 42 from tilting or deviating, and to ensure the stability of the piston plate 42 sliding in the gas container 41.

[0024] Both pressure relief mechanisms 4 are equipped with electrically controlled telescopic rods 44 at their bottom ends. Both sides of the pressure distributor 3 are equipped with side support plates 35. The electrically controlled telescopic rods 44 are installed at the top of the corresponding side support plates 35. A push plate 441 is installed at the output end of the electrically controlled telescopic rods 44. The push plate 441 is located inside the corresponding gas trough 41. The push plate 441 is in contact with the bottom end of the corresponding piston plate 42. The push plate 441 is not in contact with the compression spring 43. The pressure distributor 3 supports the two electrically controlled telescopic rods 44 through the two side support plates 35. The electrically controlled telescopic rods 44 can adjust the push plate 441 by extending or shortening. When the piston plate 42 buffers the air pressure and descends, and the air pressure is smooth, the push plate 441 is pushed by the electrically controlled telescopic rods 44. The push plate 441 pushes the piston plate 42, so that the piston plate 42 can send the air pressure back into the molecular sieve adsorption tower 1.

[0025] A limiting ring 5 is fitted on the outer side of the air pressure distributor 3. Several connecting rods 51 are installed at the bottom of the limiting ring 5, and the connecting rods 51 are all installed at the top of the base 12. During the buffering up and down movement of the air pressure distributor 3, the base 12 fixes the limiting ring 5 through the connecting rods 51, so that the limiting ring 5 can slide and guide and limit the air pressure distributor 3, preventing the air pressure distributor 3 from tilting or shifting, and ensuring the stability of the shock absorption process.

[0026] The working principle and usage of this utility model are as follows: When the air pressure distributor 3 releases compressed air to the molecular sieve adsorption tower 1 through the air inlet pipe 31 and the air inlet regulating valve 311, the air pressure increases instantaneously in the molecular sieve adsorption tower 1, the metal braided hose 34, and the air inlet pipe 31. The air pressure impact causes vibration between the molecular sieve adsorption tower 1 and the air pressure distributor 3. Two damping springs 33 buffer and absorb energy for the air pressure distributor 3, reducing the impact of vibration. At the same time, a portion of the high-pressure air can enter the pressure relief mechanism 4, and a portion of the air can be temporarily stored inside the air tank 41. Impacting the piston plate 42 causes it to slide downwards, and the compression spring 43 buffers the air pressure. When the air pressure is smooth, the push plate 441 is pushed by the electrically controlled telescopic rod 44. The push plate 441 pushes the piston plate 42, allowing the piston plate 42 to send the air pressure back into the molecular sieve adsorption tower 1. This reduces the impact of vibration caused by the instantaneous increase in air pressure, further reduces the generation of vibration, and reduces the resonance between the air pressure distributor 3 and the molecular sieve adsorption tower 1. This allows the two molecular sieve adsorption towers 1 to be used stably, thereby reducing the impact of vibration on the oxygen generator itself.

Claims

1. A pressure distribution device for a medical molecular sieve oxygen generator, comprising two molecular sieve adsorption towers (1), two oxygen delivery pipes (11), an air compressor (2), and a pressure distributor (3), characterized in that: A base (12) and a connecting top plate (13) are installed between the two molecular sieve adsorption towers (1). The pressure distributor (3) is located between the two molecular sieve adsorption towers (1). An inlet pipe (31) and an exhaust pipe (32) are installed on both sides of the pressure distributor (3). An inlet regulating valve (311) is installed on each of the two inlet pipes (31), and an exhaust regulating valve (321) is installed on each of the two exhaust pipes (32). Shock-absorbing springs (33) are installed at both ends of the pressure distributor (3). The lower pressure distributor (3) is installed at the top of the base (12), and the upper pressure distributor (3) is installed at the bottom of the connecting top plate (13). Metal braided hoses (34) are installed between the inlet pipe (31) and the exhaust pipe (32) and the molecular sieve adsorption tower (1).

2. The gas pressure distribution device for medical molecular sieve oxygen generator according to claim 1, characterized in that: The air compressor (2) is equipped with a ventilation telescopic pipe (21) at the bottom end. The ventilation telescopic pipe (21) is installed at the top of the air pressure distributor (3) and is connected to the inside of the air pressure distributor (3).

3. The gas pressure distribution device for the medical molecular sieve oxygen generator according to claim 1, characterized in that: Both intake pipes (31) are equipped with a pressure relief mechanism (4) at their bottom ends. The pressure relief mechanism (4) has an air-containing groove (41) inside. The air-containing groove (41) is connected to the internal space of the intake pipe (31). Both intake pipes (31) are equipped with a one-way valve. The one-way valve is located between the corresponding pressure relief mechanism (4) and the corresponding intake regulating valve (311).

4. The gas pressure distribution device for medical molecular sieve oxygen generator according to claim 3, characterized in that: Piston plates (42) are slidably connected to the inner walls of both gas-containing grooves (41). A compression spring (43) is installed at the bottom end of the piston plate (42), and the compression spring (43) is installed on the inner wall at the bottom end of the pressure relief mechanism (4).

5. The gas pressure distribution device for the medical molecular sieve oxygen generator according to claim 4, characterized in that: Two guide plates (411) are fixedly connected to the inner wall of the gas trough (41), and limit slots (421) are opened on both sides of the piston plate (42). The guide plates (411) are slidably connected to the inner wall of the corresponding limit slots (421).

6. The gas pressure distribution device for the medical molecular sieve oxygen generator according to claim 4, characterized in that: Both of the pressure relief mechanisms (4) are provided with an electrically controlled telescopic rod (44) at their bottom ends. The air pressure distributor (3) is provided with side support plates (35) on both sides. The electrically controlled telescopic rod (44) is installed at the top of the corresponding side support plate (35). The output end of the electrically controlled telescopic rod (44) is provided with a push plate (441). The push plate (441) is located inside the corresponding air duct (41). The push plate (441) is in contact with the bottom end of the corresponding piston plate (42). The push plate (441) is not in contact with the compression spring (43).

7. The gas pressure distribution device for medical molecular sieve oxygen generator according to claim 1, characterized in that: The pressure distributor (3) is fitted with a limiting ring (5) on its outer side. Several connecting rods (51) are installed at the bottom of the limiting ring (5). Several connecting rods (51) are installed at the top of the base (12).

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