Medical air supply device with filtering function

Abstract

The utility model relates to the technical field of medical instruments, and discloses a medical air supply device with a filtering function, which comprises an isolation box, an oxygen tank is arranged in the isolation box, the top end of the oxygen tank is fixedly connected with a flange plate II, the inner wall of the flange plate II is fixedly connected with a connecting pipe, and the connecting pipe is fixedly connected with a filter screen. A switch valve is fixedly connected to the interior of the connecting pipe, a first flange plate is fixedly connected to the outer wall of the connecting pipe, a filter box is fixedly connected to the inner wall of the first flange plate, and an RO membrane is arranged in the filter box. According to the water purifier, the flange plate I and the flange plate II are connected with the filter box through the connecting pipe, so that the filter box can be conveniently and quickly disassembled, and the filtering effect of the filter box is improved through the matching among the RO membrane, the activated carbon filter plate and the filter screen in the filter box; and the filter screen and the like are moved out of the filter box by pulling the connecting rod, so that the filter screen is convenient to disassemble.

Description

Technical Field

[0001] The utility model relates to the technical field of medical instruments, in particular to a medical air supply device with a filtering function. Background Art

[0002] Oxygen cylinders are high-pressure containers for storing and transporting oxygen. They are one of the ideal oxygen supply equipment for supplementing oxygen in hospitals. In actual use, it is usually necessary to set corresponding protective devices on the outside of the oxygen cylinder to improve the safety of oxygen cylinder use. However, traditional oxygen cylinders do not have the function of filtering the gas outlet. As the inner wall of the gas pipe increases with the number of uses, it is easy to cause a corresponding number of bacteria to adhere to its inner wall, which poses a serious hidden danger to the patient's personal safety and reduces its safety of use. Therefore, a medical gas supply device with a filtering function is needed.

[0003] After searching, a medical gas supply device with a filtering function is disclosed in the announcement number: CN216480238U, including an isolation box and a filter box, the filter box is located on the right side of the isolation box, and a connecting pipe is inserted into the right side wall of the isolation box. A controller is fixedly connected to the right side wall of the isolation box and located below the connecting pipe, and a first bracket is fixedly connected to the upper and lower sides of the inner wall of the isolation box. The medical gas supply device with a filtering function has a reasonable structural design, which effectively solves the problem of bacterial breeding caused by long-term use in the prior art, avoids affecting the personal safety of patients, improves the quality of oxygen use and the actual safety of use of the device, and at the same time realizes that the device can position the use of the oxygen cylinder body, effectively avoiding the phenomenon that the oxygen cylinder body itself is shaken by the influence of gravity, so as to ensure the normal use of the oxygen cylinder body. The stainless steel filter and activated carbon filter arranged in the filter box in the application are prone to impurities during long-term use, affecting the filtering effect of the filter. The filter is an integrated structure that is not convenient to disassemble and replace, affecting the overall filtering effect of the filtering device. Utility Model Content

[0004] In order to make up for the above shortcomings, the utility model provides a medical air supply device with a filtering function, aiming to improve the problem that the filter is an integrated structure that is inconvenient to disassemble and replace, affecting the overall filtering effect of the filtering device.

[0005] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a medical gas supply device with a filtering function, comprising an isolation box, an oxygen tank is arranged inside the isolation box, a flange plate 2 is fixedly connected to the top of the oxygen tank, a connecting pipe is fixedly connected to the inner wall of the flange plate 2, a switch valve is fixedly connected to the inside of the connecting pipe, a flange plate 1 is fixedly connected to the outer wall of the connecting pipe, a filter box is fixedly connected to the inner wall of the flange plate 1, an RO membrane is arranged inside the filter box, a connecting rod is fixedly connected to the inner wall of the RO membrane, an activated carbon filter plate is fixedly connected to the left side of the outer wall of the connecting rod, a filter screen is fixedly connected to the right side of the outer wall of the connecting rod, a telescopic rod is fixedly connected to the outer wall of the connecting rod in a centrally symmetrical manner, the top of the telescopic rod is fixedly connected to a limiting block, a spring is sleeved on the outer wall of the telescopic rod, one end of the spring is fixedly connected to the lower surface of the limiting block, and the other end of the spring is fixedly connected to the outer wall of the connecting rod, and a fixing component is arranged inside the isolation box.

[0006] Furthermore, the fixing assembly includes an electric push rod, a driving end of the electric push rod is fixedly connected to a clamping plate, an outer wall of the clamping plate fits with an outer wall of the oxygen tank, and the outer wall of the electric push rod is fixedly connected to the inner wall of the isolation box.

[0007] Furthermore, a plug block is threadedly connected to the inner wall of the filter box, and a sealing ring 1 is fixedly connected to the outer wall of the plug block.

[0008] Furthermore, the left side of the outer wall of the plug block is threadedly connected to connecting block one, the right side of the outer wall of the plug block is threadedly connected to connecting block two, the outer wall of the connecting block two is fixedly connected to sealing ring two, the outer walls of the connecting block one and the connecting block two are both fixedly connected to anti-slip strips, further, the outer wall of the connecting block two is fixedly connected to an air duct, an electromagnetic valve is provided inside the air duct, a threaded groove is provided inside the air duct, the outer wall of the air duct is threadedly connected to a connecting sleeve, and the outer wall of the connecting sleeve is fixedly connected to an air outlet nozzle.

[0009] Furthermore, a delivery pipe is fixedly connected to the top of the oxygen tank, and a pressure gauge is fixedly connected to the outer wall of the delivery pipe.

[0010] Furthermore, a base is fixedly connected to the lower surface of the isolation box, a cabinet door is rotatably connected to the outer wall of the isolation box, and an observation window is provided inside the cabinet door.

[0011] Furthermore, a buckle is fixedly connected to the outer wall of the cabinet door, a sealing plate is fixedly connected to the outer wall of the buckle, and the outer wall of the sealing plate is fixedly connected to the outer wall of the isolation box.

[0012] The utility model has the following beneficial effects:

[0013] 1. In the utility model, flange plate 1 and flange plate 2 are connected with the filter box with a connecting pipe, so that the filter box can be quickly disassembled. The filtration effect of the filter box is improved by the cooperation between the RO membrane, the activated carbon filter plate and the filter screen inside the filter box. The filter screen is moved out of the filter box by pulling the connecting rod, so that the filter screen can be easily disassembled and replaced. The cooperation between the limit blocks between the telescopic rod and the spring can make the filter screen, the RO membrane and the activated carbon filter plate more stable inside the filter box, thereby improving the filtration efficiency of the air supply device.

[0014] 2. In the utility model, the design between the electric push rod and the clamping block inside the isolation box provides a stable gas supply environment for the oxygen tank. By rotating the connecting block 2 to separate the plug block, the connecting block 2 and the plug block are separated, which facilitates the disassembly of the air duct and the filter box. The cooperation between the sealing ring 1 connected to the connecting block 1 and the sealing ring 2 connected to the connecting block 2 improves the air tightness of the air duct and improves the stability of the gas supply of the gas supply device. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 This is a front view of a medical gas supply device with filtering function proposed by the utility model;

[0016] Figure 2 This is a schematic diagram of the internal structure of a filter box of a medical air supply device with filtering function proposed by the utility model;

[0017] Figure 3 This is a schematic diagram of the telescopic rod structure of a medical air supply device with filtering function proposed by the utility model;

[0018] Figure 4 This is a schematic diagram of the split structure of the airway tube of a medical air supply device with filtering function proposed by the utility model;

[0019] Figure 5 This is a schematic diagram of the internal structure of an isolation box of a medical gas supply device with filtering function proposed by the utility model.

[0020] Legend:

[0021] 1. Connecting pipe; 2. Switch valve; 3. Flange plate 1; 4. Filter box; 5. Connecting rod; 6. RO membrane; 7. Activated carbon filter plate; 8. Filter screen; 9. Telescopic rod; 10. Limit block; 11. Spring; 12. Connecting block 1; 13. Plug block; 14. Sealing ring 1; 15. Connecting block 2; 16. Sealing ring 2; 17. Anti-slip strip; 18. Air duct; 19. Solenoid valve; 20. Threaded groove; 21. Connecting sleeve; 22. Air outlet nozzle; 23. Flange plate 2; 24. Oxygen tank; 25. Isolation box; 26. Electric push rod; 27. Clamping plate; 28. Base; 29. ​​Delivery pipe; 30. Pressure gauge; 31. Observation window; 32. Buckle; 33. Sealing plate; 34. Cabinet door. DETAILED DESCRIPTION

[0022] The technical solutions in the embodiments of the utility model will be clearly and completely described below in conjunction with the drawings in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, rather than all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without making creative work are within the scope of protection of the utility model.

[0023] Reference Figure 1-3 , the utility model provides an embodiment: a medical gas supply device with a filtering function, comprising an isolation box 25, an oxygen tank 24 is arranged inside the isolation box 25, a flange plate 23 is fixedly connected to the top of the oxygen tank 24, a connecting pipe 1 is fixedly connected to the inner wall of the flange plate 23, a switch valve 2 is fixedly connected to the inside of the connecting pipe 1, a flange plate 3 is fixedly connected to the outer wall of the connecting pipe 1, a filter box 4 is fixedly connected to the inner wall of the flange plate 3, an RO membrane 6 is arranged inside the filter box 4, a connecting rod 5 is fixedly connected to the inner wall of the RO membrane 6, an activated carbon filter plate 7 is fixedly connected to the left side of the outer wall of the connecting rod 5, a filter screen 8 is fixedly connected to the right side of the outer wall of the connecting rod 5, a telescopic rod 9 is fixedly connected to the outer wall of the connecting rod 5 in a centrally symmetrical manner, the top of the telescopic rod 9 is fixedly connected to a limiting block 10, a spring 11 is sleeved on the outer wall of the telescopic rod 9, one end of the spring 11 is fixedly connected to the lower surface of the limiting block 10, and the other end of the spring 11 is fixedly connected to the outer wall of the connecting rod 5, and a fixing component is arranged inside the isolation box 25.

[0024] Specifically, the other end of the connecting pipe 1 is connected to the flange plate 23, and then connected to the filter box 4. This step is to ensure that oxygen can be smoothly introduced into the filter box 4 through the connecting pipe 1. Inside the filter box 4, RO membrane 6, activated carbon filter plate 7 and filter screen 8 are arranged from left to right. These components work together to filter and purify the oxygen. The filtered oxygen is transported to the inside of the air guide pipe 18 through the connecting block 2 15, and finally ejected through the air outlet nozzle 22 connected to the air guide pipe 18. This series of processes ensures the purity of oxygen during air supply, which is good for the filter box 4. Internal components, such as RO membrane 6, activated carbon filter plate 7 and filter screen 8, need to be replaced or cleaned regularly. For the convenience of operation, the flange plate 23 can be removed and the connecting rod 5 can be pulled to move the components out of the filter box 4. After cleaning or replacement, the connecting rod 5 with the RO membrane 6, activated carbon filter plate 7 and filter screen 8 can be moved back to the filter box 4. It is particularly worth mentioning that the multiple telescopic rods 9 connected to the connecting rod 5 with the limit blocks 10 are fixed to the inside of the filter box 4 through the tension of the spring 11. This design increases the stability of the structure.

[0025] Reference Figure 1 and Figure 4 The fixed component includes an electric push rod 26, a driving end of the electric push rod 26 is fixedly connected with a clamping plate 27, the outer wall of the clamping plate 27 is fitted with the outer wall of the oxygen tank 24, the outer wall of the electric push rod 26 is fixedly connected to the inner wall of the isolation box 25, the inner wall of the filter box 4 is threadedly connected with a plug block 13, the outer wall of the plug block 13 is fixedly connected with a sealing ring 14, the left side of the outer wall of the plug block 13 is threadedly connected with a connecting block 12, the right side of the outer wall of the plug block 13 is threadedly connected with a connecting block 2 15, the outer wall of the connecting block 2 15 is fixedly connected with a sealing ring 2 16, the outer walls of the connecting block 12 and the connecting block 2 15 are both fixedly connected with anti-slip strips 17, the outer wall of the connecting block 2 15 is fixedly connected with an air guide tube 18, an electromagnetic valve 19 is arranged inside the air guide tube 18, a threaded groove 20 is opened inside the air guide tube 18, the outer wall of the air guide tube 18 is threadedly connected with a connecting sleeve 21, and the outer wall of the connecting sleeve 21 is fixedly connected with an air outlet nozzle 22.

[0026] Specifically, in order to better protect the oxygen tank 24, it is clamped and fixed by the left-right symmetrical electric push rod 26 and the clamping plate 27. In this way, even when supplying gas, the oxygen tank 24 can remain stable and is not prone to shaking or shifting. In addition, in order to facilitate the disassembly of the air duct 18, the air duct 18 can be separated from the plug block 13 by rotating the connecting block 2 15, and then the connecting block 12 is rotated in turn to separate the plug block 13, and the plug component is separated from the filter box 4. These steps greatly simplify the subsequent maintenance work.

[0027] Reference Figure 1 and Figure 5The top of the oxygen tank 24 is fixedly connected to a delivery pipe 29, the outer wall of the delivery pipe 29 is fixedly connected to a barometer 30, the lower surface of the isolation box 25 is fixedly connected to a base 28, the outer wall of the isolation box 25 is rotatably connected to a cabinet door 34, an observation window 31 is provided inside the cabinet door 34, the outer wall of the cabinet door 34 is fixedly connected to a buckle 32, the outer wall of the buckle 32 is fixedly connected to a sealing plate 33, and the outer wall of the sealing plate 33 is fixedly connected to the outer wall of the isolation box 25.

[0028] Specifically, by rotating the buckle 32, the cabinet door 34 and the sealing plate 33 are separated smoothly. This operation is necessary, and it opens the passage for the next step. Then, the cabinet door 34 can be opened safely to prepare for placing the oxygen tank 24. The oxygen tank 24 is placed inside the isolation box 25. This process must be done carefully to ensure its safety and stability. After placing the oxygen tank 24, the barometer 30 can be conveniently observed through the observation window 31.

[0029] Working principle: when the device needs to be used, first rotate the buckle 32 to separate the cabinet door 34 and the sealing plate 33, then open the cabinet door 34, put the oxygen tank 24 in the isolation box 25, and clamp and fix the oxygen tank 24 with the clamping plate 27 through the left and right symmetrical electric push rods 26, so as to protect the oxygen tank 24 and improve the stability of the oxygen tank 24 during gas supply. The barometer 30 connected to the oxygen tank 24 is conveniently observed through the observation window 31. The flange plate 1 3 connected to one end of the connecting pipe 1 is connected to the oxygen tank 24, and then the flange plate 2 23 connected to the other end of the connecting pipe 1 is connected to the filter box 4, and then the switch valve 2 connected to the connecting pipe 1 is rotated, and the gas inside the oxygen tank 24 is introduced into the interior of the filter box 4 through the connecting pipe 1. Through the cooperation between the RO membrane 6, the activated carbon filter plate 7 and the filter screen 8 arranged from left to right in the filter box 4, the oxygen is filtered and purified, and transported to the interior of the air guide pipe 18 through the connecting block 2 15, and finally connected to the air guide pipe 18 The air outlet nozzle 22 sprays out, and the oxygen is filtered and purified during the air supply. By disassembling the flange plate 23, the connecting rod 5 is pulled to move the RO membrane 6, the activated carbon filter plate 7 and the filter screen 8 out of the filter box 4, which is convenient for replacing or cleaning the RO membrane 6, the activated carbon filter plate 7 and the filter screen 8. Then the connecting rod 5 is moved to the inside of the filter box 4 with the RO membrane 6, the activated carbon filter plate 7 and the filter screen 8. The multiple telescopic rods 9 connected by the connecting rod 5 and the limit blocks 10 are connected by the springs 11. The connecting rod 5 is fixedly connected to the inside of the filter box 4 by the tension effect, and the air guide pipe 18 is separated from the plug block 13 by rotating the connecting block 2 15, and then the connecting block 12 is separated from the plug block 13 by rotating, and then the plug assembly is separated from the filter box 4, so as to facilitate the disassembly of the air guide pipe 18, and the air outlet nozzle 22 is rotated with the connecting sleeve 21 to rotate on the inner wall of the threaded groove 20 to disassemble the air outlet nozzle 22, so as to facilitate the replacement of the air outlet nozzle 22, thereby improving the convenience of later maintenance of the air supply device.

[0030] Finally, it should be noted that the above is only a preferred embodiment of the present invention and is not intended to limit the present invention. Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art can still modify the technical solutions described in the aforementioned embodiments or make equivalent substitutions for some of the technical features therein. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

Claims

1. A medical gas supply device with filtering function, comprising an isolation box (25), characterized in that: An oxygen tank (24) is arranged inside the isolation box (25), the top of the oxygen tank (24) is fixedly connected to a flange plate 2 (23), the inner wall of the flange plate 2 (23) is fixedly connected to a connecting pipe (1), the inside of the connecting pipe (1) is fixedly connected to a switch valve (2), the outer wall of the connecting pipe (1) is fixedly connected to a flange plate 1 (3), the inner wall of the flange plate 1 (3) is fixedly connected to a filter box (4), the inside of the filter box (4) is provided with an RO membrane (6), the inner wall of the RO membrane (6) is fixedly connected to a connecting rod (5), the connecting rod (5) ) is fixedly connected to an activated carbon filter plate (7) on the left side of the outer wall of the connecting rod (5), a filter screen (8) is fixedly connected to the right side of the outer wall of the connecting rod (5), a telescopic rod (9) is fixedly connected to the outer wall of the connecting rod (5) in a centrally symmetrical manner, the top of each of the telescopic rods (9) is fixedly connected to a limit block (10), a spring (11) is sleeved on the outer wall of the telescopic rod (9), one end of the spring (11) is fixedly connected to the lower surface of the limit block (10), and the other end of the spring (11) is fixedly connected to the outer wall of the connecting rod (5), and a fixing component is arranged inside the isolation box (25).

2. A medical gas supply device with filtering function according to claim 1, characterized in that: The fixing assembly comprises an electric push rod (26), a driving end of the electric push rod (26) is fixedly connected to a clamping plate (27), an outer wall of the clamping plate (27) is in contact with an outer wall of the oxygen tank (24), and the outer wall of the electric push rod (26) is fixedly connected to the inner wall of the isolation box (25).

3. The medical gas supply device with filtering function according to claim 1, characterized in that: The inner wall of the filter box (4) is threadedly connected to a plug block (13), and the outer wall of the plug block (13) is fixedly connected to a sealing ring (14).

4. A medical gas supply device with filtering function according to claim 3, characterized in that: The left side of the outer wall of the plug block (13) is threadedly connected to the connecting block 1 (12), the right side of the outer wall of the plug block (13) is threadedly connected to the connecting block 2 (15), the outer wall of the connecting block 2 (15) is fixedly connected to the sealing ring 2 (16), and the outer walls of the connecting block 1 (12) and the connecting block 2 (15) are both fixedly connected to the anti-slip strip (17).

5. The medical gas supply device with filtering function according to claim 4, characterized in that: An air guide tube (18) is fixedly connected to the outer wall of the connecting block 2 (15), an electromagnetic valve (19) is arranged inside the air guide tube (18), a thread groove (20) is provided inside the air guide tube (18), a connecting sleeve (21) is threadedly connected to the outer wall of the air guide tube (18), and an air outlet nozzle (22) is fixedly connected to the outer wall of the connecting sleeve (21).

6. The medical gas supply device with filtering function according to claim 1, characterized in that: The top end of the oxygen tank (24) is fixedly connected to a delivery pipe (29), and the outer wall of the delivery pipe (29) is fixedly connected to a pressure gauge (30).

7. The medical gas supply device with filtering function according to claim 1, characterized in that: The lower surface of the isolation box (25) is fixedly connected to a base (28), the outer wall of the isolation box (25) is rotatably connected to a cabinet door (34), and an observation window (31) is provided inside the cabinet door (34).

8. The medical gas supply device with filtering function according to claim 7, characterized in that: The outer wall of the cabinet door (34) is fixedly connected to a buckle (32), the outer wall of the buckle (32) is fixedly connected to a sealing plate (33), and the outer wall of the sealing plate (33) is fixedly connected to the outer wall of the isolation box (25).

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