Portable medical molecular sieve oxygen generator

Abstract

The utility model discloses a portable medical molecular sieve oxygen generator, which relates to the technical field of molecular sieve oxygen generators and comprises a shell and a blocking component. A filtering tank is fixed in the shell, a filter element is arranged in the filtering tank, a connecting pipe is fixed in an air inlet formed in the lower end of the surface of the filtering tank, a first three-way pipe is fixed in an air outlet formed in the upper end of the surface of the filtering tank, and two corresponding molecular sieves are fixed in the shell; two ports, far away from the filtering tank, of the first three-way pipe are fixed in two air inlets formed in the lower ends of two molecular sieves, a second three-way pipe is fixed in air outlets formed in the upper ends of the two molecular sieves, and a bacterial filter is mounted at the left end of the upper side in the shell; one end, far away from the two molecular sieves, of the second three-way pipe is fixed in the air inlet of the bacterial filter, so that the filter element can be very conveniently replaced.

Description

Technical Field

[0001] The utility model relates to the technical field of molecular sieve oxygen generators, in particular to a portable medical molecular sieve oxygen generator. Background Art

[0002] Molecular sieve oxygen generator refers to a new type of equipment that extracts oxygen from the air based on pressure swing adsorption (PSA) technology. It uses molecular sieve physical adsorption and desorption technology to fill the molecular sieve in the oxygen generator. When pressurized, it can adsorb nitrogen in the air, and the remaining unabsorbed oxygen is collected and purified to become high-purity oxygen. The specific working process is that the compressed air is purified by the air purification dryer and enters the adsorption tower through the switching valve. In the adsorption tower, nitrogen is adsorbed by the molecular sieve, and oxygen is accumulated at the top of the adsorption tower and enters the oxygen storage tank. It is then filtered through the deodorization, dust removal filter and sterilization filter to obtain qualified medical oxygen.

[0003] When the oxygen concentrator is working, it is usually necessary to filter and adsorb the inhaled air first. After filtering the air for a long time, the filter element in the filter chamber needs to be replaced to ensure the normal operation of the oxygen concentrator. At present, the process of replacing the filter element is relatively complicated, the replacement time is long, and the working efficiency of the nutrition oxygen concentrator is reduced. The process of replacing the filter element is complicated and it is easy to cause damage to the filter chamber. For this reason, we propose a portable medical molecular sieve oxygen concentrator. Utility Model Content

[0004] The technical problem to be solved by the utility model is to overcome the existing defects and provide a portable medical molecular sieve oxygen generator, which can easily replace the filter element and effectively solve the problems in the background technology.

[0005] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: A portable medical molecular sieve oxygen generator comprises a housing and a barrier assembly;

[0006] Shell: A filter tank is fixed inside, a filter element is arranged inside the filter tank, a connecting pipe is fixed inside the air inlet arranged at the lower end of the surface of the filter tank, a first three-way pipe is fixed inside the air outlet arranged at the upper end of the surface of the filter tank, two corresponding molecular sieves are fixed inside the shell, two ports of the first three-way pipe away from the filter tank are fixed inside the two air inlets arranged at the lower ends of the two molecular sieves, a second three-way pipe is fixed inside the air outlet arranged at the upper ends of the two molecular sieves, a bacterial filter is installed at the left end of the upper side of the shell, one end of the second three-way pipe away from the two molecular sieves is fixed inside the air inlet of the bacterial filter, an exhaust pipe is fixed inside the air outlet of the bacterial filter, a display and a PLC controller are installed on the front side of the shell, and two corresponding fixed components are installed on the surface of the filter tank;

[0007] Blocking assembly: comprising a sealing disc, a support plate and a clamping hole, the upper end of the filter tank is clamped with a sealing disc, the front end of the circumferential surface of the sealing disc is provided with a clamping hole, the lower end of the sealing disc is fixed with two corresponding support plates, the lower sides of the two support plates are both in contact with the upper end of the filter element, a pressurizing assembly is installed in the middle of the sealing disc, a sealing assembly is installed at the lower end of the sealing disc, the pressurizing assembly is connected to the sealing assembly, and the upper end of the filter tank is sealed by setting the blocking assembly;

[0008] Wherein: the input end of the PLC controller is electrically connected to the output end of the external power supply, and the output end of the PLC controller is electrically connected to the input end of the bacteria filter and the display respectively.

[0009] Furthermore, the fixing assembly includes a clamping rod, a limit plate and a spring. Two corresponding sliding holes are provided at the upper end of the circumferential surface of the filter tank. The inside of the sliding hole is slidably connected with a clamping rod. The end surface of the clamping rod is fixed with a limit plate. The circumferential surface of the clamping rod is sleeved with a spring. One end of the spring is fixed on the circumferential surface of the filter tank, and the other end of the spring is fixed on the end surface of the limit plate. Both clamping rods are clamped in the inside of the clamping hole, and the sealing plate is fixed by setting a fixing assembly.

[0010] Furthermore, the pressurizing component includes a fixing tube, a sealing cover, a sliding rod and a rubber disc, a fixing hole is opened in the middle of the sealing disc, a fixing tube is fixed inside the fixing hole, a sealing cover is threadedly connected to the upper end of the surface of the fixing tube, a guide hole is opened at the upper end of the sealing cover, a sliding rod is slidably connected to the inside of the guide hole, a rubber disc is fixed to the lower end of the sliding rod, and air is injected into the interior of the annular airbag by setting the pressurizing component.

[0011] Furthermore, the sealing assembly includes a fixed disk, an air outlet pipe and an annular air bag, the fixed disk is fixed at the lower end of the fixed tube, two corresponding air outlet holes are opened at the lower end of the fixed disk, the air outlet pipe is fixed inside the air outlet holes, the annular air bag is fixed at the lower end of the sealing disk, the lower ends of the two air outlet pipes are fixed inside the air inlet set on the surface of the annular air bag, and the gap between the sealing disk and the filter tank is sealed by setting the sealing assembly.

[0012] Furthermore, an air pump is installed on the left side of the shell, the left end of the connecting pipe is fixed inside the air outlet of the air pump, an air intake pipe is fixed inside the air inlet of the air pump, the input end of the air pump is electrically connected to the output end of the PLC controller, and external air is injected into the interior of the filter tank through the air pump and the air intake pipe.

[0013] Compared with the prior art, the beneficial effects of the utility model are: the portable medical molecular sieve oxygen generator has the following advantages:

[0014] 1. By setting up the sealing assembly, when replacing the filter element, the two clamping rods can be pulled to move and separate from the clamping hole opened on the circumferential surface of the sealing disk. After separation, the sealing disk can be removed, and then the filter element can be replaced. After replacement, the sealing disk is re-inserted into the upper end of the filter tank. After insertion, the two clamping rods will enter the inside of the clamping hole under the action of two springs to fix the sealing disk. After fixing, the filter element can be replaced, which is very convenient;

[0015] 2. By setting up an extrusion component, after the sealing disk is fixed, the sliding rod is pressed to move the rubber disk downward. The downward movement of the rubber disk allows compressed air to enter the interior of the annular airbag through two air outlet pipes to make it bulge. After the annular airbag bulges, the gap between the sealing disk and the filter tank can be sealed, and after sealing, gas leakage can be avoided during oxygen production. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 This is a schematic diagram of the front structure of the utility model;

[0017] Figure 2 This is a schematic diagram of the structure of the molecular sieve of the utility model;

[0018] Figure 3 This is a schematic diagram of the structure of the fixed component of the utility model;

[0019] Figure 4 This is a schematic diagram of the structure of the pressurizing component of the utility model.

[0020] In the figure: 1 shell, 2 filter tank, 3 blocking component, 31 sealing disk, 32 support plate, 33 clamping hole, 4 fixing component, 41 clamping rod, 42 limit disk, 43 spring, 5 pressurizing component, 51 fixing pipe, 52 sealing cover, 53 sliding rod, 54 rubber disk, 6 sealing component, 61 fixing disk, 62 air outlet pipe, 63 annular airbag, 7 filter element, 8 vacuum pump, 9 air inlet pipe, 10 connecting pipe, 11 first three-way pipe, 12 molecular sieve, 13 second three-way pipe, 14 bacterial filter, 15 exhaust pipe, 16 display, 17 PLC controller. DETAILED DESCRIPTION

[0021] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0022] See also Figure 1-4 , This embodiment provides a technical solution: a portable medical molecular sieve oxygen concentrator, characterized in that it includes a housing 1 and a barrier component 3;

[0023] Shell 1: A filter tank 2 is fixed inside, a filter element 7 is arranged inside the filter tank 2, a connecting pipe 10 is fixed inside the air inlet arranged at the lower end of the surface of the filter tank 2, a first three-way pipe 11 is fixed inside the air outlet arranged at the upper end of the surface of the filter tank 2, two corresponding molecular sieves 12 are fixed inside the shell 1, two ports of the first three-way pipe 11 away from the filter tank 2 are fixed inside the two air inlets arranged at the lower ends of the two molecular sieves 12, a second three-way pipe 13 is fixed inside the air outlet arranged at the upper ends of the two molecular sieves 12, a bacterial filter 14 is installed at the left end of the upper side of the shell 1, one end of the second three-way pipe 13 away from the two molecular sieves 12 is fixed inside the air inlet of the bacterial filter 14, and the bacterial filter An exhaust pipe 15 is fixed inside the air outlet of 14, a display 16 and a PLC controller 17 are installed on the front side of the housing 1, two corresponding fixing components 4 are installed on the surface of the filter tank 2, the fixing component 4 includes a clamping rod 41, a limit plate 42 and a spring 43, and two corresponding sliding holes are provided at the upper end of the circumferential surface of the filter tank 2, and a clamping rod 41 is slidably connected inside the sliding hole, and a limit plate 42 is fixed on the end surface of the clamping rod 41, and a spring 43 is sleeved on the circumferential surface of the clamping rod 41, one end of the spring 43 is fixed on the circumferential surface of the filter tank 2, and the other end of the spring 43 is fixed on the end surface of the limit plate 42, and the two clamping rods 41 are clamped in the inside of the clamping hole 33, and the sealing disk 31 is fixed by setting the fixing component 4;

[0024] Blocking assembly 3: includes sealing disc 31, support plate 32 and clamping hole 33, the sealing disc 31 is clamped at the upper end of the filter tank 2, the front end of the circumferential surface of the sealing disc 31 is provided with a clamping hole 33, the lower end of the sealing disc 31 is fixed with two corresponding support plates 32, the lower sides of the two support plates 32 are both in contact with the upper end of the filter element 7, a pressurizing assembly 5 is installed in the middle of the sealing disc 31, a sealing assembly 6 is installed at the lower end of the sealing disc 31, the pressurizing assembly 5 is connected to the sealing assembly 6, the pressurizing assembly 5 includes a fixing tube 51, a sealing cover 52, a sliding rod 53 and a rubber disc 54, a fixing hole is opened in the middle of the sealing disc 31, a fixing tube 51 is fixed inside the fixing hole, the upper end of the surface of the fixing tube 51 is threadedly connected with the sealing cover 52, the upper A guide hole is provided at the end, and a slide rod 53 is slidably connected inside the guide hole, and a rubber disc 54 is fixed at the lower end of the slide rod 53. The sealing component 6 includes a fixed disc 61, an air outlet pipe 62 and an annular air bag 63. The lower end of the fixed tube 51 is fixed with a fixed disc 61, and two corresponding air outlet holes are provided at the lower end of the fixed disc 61. An air outlet pipe 62 is fixed inside the air outlet hole, and an annular air bag 63 is fixed at the lower end of the sealing disc 31. The lower ends of the two air outlet pipes 62 are fixed inside the air inlet provided on the surface of the annular air bag 63. The gap between the sealing disc 31 and the filter tank 2 is sealed by providing the sealing component 6, and the inside of the annular air bag 63 is injected with air by providing the pressurizing component 5, and the upper end of the filter tank 2 is sealed by providing the blocking component 3.

[0025] The input end of the PLC controller 17 is electrically connected to the output end of the external power supply, and the output end of the PLC controller 17 is electrically connected to the input end of the bacteria filter 14 and the display 16 respectively.

[0026] Wherein: an air pump 8 is installed on the left side of the shell 1, the left end of the connecting pipe 10 is fixed inside the air outlet of the air pump 8, an air intake pipe 9 is fixed inside the air inlet of the air pump 8, the input end of the air pump 8 is electrically connected to the output end of the PLC controller 17, and the external air is injected into the interior of the filter tank 2 through the air pump 8 and the air intake pipe 9.

[0027] The working principle of the portable medical molecular sieve oxygen generator provided by the utility model is as follows: when replacing the filter element 7, the two clamping rods 41 can be pulled to move it to separate it from the clamping hole 33 opened on the circumferential surface of the sealing disk 31. After separation, the sealing disk 31 can be removed, and then the filter element 7 can be replaced. After replacement, the sealing disk 31 is reinserted into the upper end of the filter tank 2. After insertion, the two clamping rods 41 will enter the inside of the clamping hole 33 under the action of the two springs 43 to fix the sealing disk 31. After fixing, the replacement of the filter element 7 can be completed, which is extremely convenient. After the sealing disk 31 is fixed, the sliding rod 53 is pressed to make the rubber disk 54 move downward. The rubber disk 54 moves downward to allow compressed air to enter the inside of the annular airbag 63 through the two air outlet pipes 62 to make it bulge. After the annular airbag 63 bulges, the gap between the sealing disk 31 and the filter tank 2 can be sealed, and after sealing, gas leakage during oxygen production can be avoided.

[0028] It is worth noting that the PLC controller 17 disclosed in the above embodiment is specifically a Siemens S7-200 model, and the vacuum pump 8, the display 16 and the bacterial filter 14 can be freely configured according to the actual application scenario. The PLC controller 17 controls the vacuum pump 8, the display 16 and the bacterial filter 14 using methods commonly used in the prior art.

[0029] The above description is only an embodiment of the present invention, and does not limit the patent scope of the present invention. Any equivalent structure or equivalent process transformation made by using the contents of the specification and drawings of the present invention, or directly or indirectly applied in other related technical fields, are also included in the patent protection scope of the present invention.

Claims

1. Portable medical molecular sieve oxygen concentrator, characterized by: It comprises a housing (1) and a blocking component (3); The housing (1) has a filter tank (2) fixed therein, a filter element (7) disposed therein, a connecting pipe (10) fixed therein at an air inlet disposed at the lower end of the surface of the filter tank (2), a first three-way pipe (11) fixed therein at an air outlet disposed at the upper end of the surface of the filter tank (2), two corresponding molecular sieves (12) fixed therein, two ports of the first three-way pipe (11) away from the filter tank (2) fixed to the inside of two air inlets disposed at the lower ends of the two molecular sieves (12), and the two molecular sieves (12) are disposed in a manner similar to that of the housing (1). A second three-way pipe (13) is fixed inside the air outlet arranged at the upper end of the housing (12); a bacterial filter (14) is installed at the left end of the upper side of the housing (1); one end of the second three-way pipe (13) away from the two molecular sieves (12) is fixed inside the air inlet of the bacterial filter (14); an exhaust pipe (15) is fixed inside the air outlet of the bacterial filter (14); a display (16) and a PLC controller (17) are installed on the front side of the housing (1); and two corresponding fixing components (4) are installed on the surface of the filter tank (2); The blocking component (3) comprises a sealing disc (31), a support plate (32) and a clamping hole (33); the sealing disc (31) is clamped at the upper end of the filter tank (2); the clamping hole (33) is provided at the front end of the circumferential surface of the sealing disc (31); two corresponding support plates (32) are fixed to the lower end of the sealing disc (31); the lower sides of the two support plates (32) are both in contact with the upper end of the filter element (7); a pressurizing component (5) is installed in the middle of the sealing disc (31); a sealing component (6) is installed at the lower end of the sealing disc (31); and the pressurizing component (5) is connected to the sealing component (6); Wherein: the input end of the PLC controller (17) is electrically connected to the output end of the external power supply, and the output end of the PLC controller (17) is electrically connected to the input ends of the bacteria filter (14) and the display (16) respectively.

2. The portable medical molecular sieve oxygen concentrator according to claim 1, characterized in that: The fixing assembly (4) comprises a clamping rod (41), a limiting disk (42) and a spring (43); the upper end of the circumferential surface of the filter tank (2) is provided with two corresponding sliding holes; the inside of the sliding hole is slidably connected with the clamping rod (41); the end surface of the clamping rod (41) is fixed with the limiting disk (42); the circumferential surface of the clamping rod (41) is sleeved with the spring (43); one end of the spring (43) is fixed on the circumferential surface of the filter tank (2); the other end of the spring (43) is fixed on the end surface of the limiting disk (42); the two clamping rods (41) are both clamped in the inside of the clamping hole (33).

3. The portable medical molecular sieve oxygen concentrator according to claim 1, characterized in that: The pressurizing component (5) comprises a fixing tube (51), a sealing cover (52), a sliding rod (53) and a rubber disc (54); a fixing hole is provided in the middle of the sealing disc (31); a fixing tube (51) is fixed inside the fixing hole; the sealing cover (52) is threadedly connected to the upper end of the surface of the fixing tube (51); a guide hole is provided at the upper end of the sealing cover (52); a sliding rod (53) is slidably connected to the inside of the guide hole; and a rubber disc (54) is fixed to the lower end of the sliding rod (53).

4. The portable medical molecular sieve oxygen concentrator according to claim 3, characterized in that: The sealing component (6) comprises a fixed disk (61), an air outlet pipe (62) and an annular air bag (63); the fixed disk (61) is fixed to the lower end of the fixed tube (51); two corresponding air outlet holes are provided at the lower end of the fixed disk (61); the air outlet pipe (62) is fixed inside the air outlet holes; the annular air bag (63) is fixed to the lower end of the sealing disk (31); the lower ends of the two air outlet pipes (62) are fixed inside the air inlet provided on the surface of the annular air bag (63).

5. The portable medical molecular sieve oxygen concentrator according to claim 1, characterized in that: An air pump (8) is installed on the left side of the shell (1), the left end of the connecting pipe (10) is fixed inside the air outlet of the air pump (8), an air intake pipe (9) is fixed inside the air inlet of the air pump (8), and the input end of the air pump (8) is electrically connected to the output end of the PLC controller (17).

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