Oxygen cabin inlet air filtering device

Abstract

An oxygen cabin inlet air filtering device comprises a filtering box. One end of the filter box is connected with an air inlet pipe, the other end of the filter box is connected with an air outlet pipe connected with an oxygen cabin, and the filter box comprises a front cover, a rear cover, a filter frame and a mounting frame; the air inlet pipe is connected with the front cover, and the air outlet pipe is connected with the rear cover. The front cover, the rear cover, the filter frame and the mounting frame are connected through connecting bolts; the inner side of the filter frame is connected with a filter plate; two first filter cartridges are arranged on the filter plate; two outlets corresponding to the two first filter cartridges respectively are formed in the mounting frame; and the outlets of the mounting frames are detachably connected with filtering devices. The filter box of the oxygen cabin inlet air filter device comprises the front cover, the rear cover, the filter frame and the mounting frame, and the front cover, the rear cover, the filter frame and the mounting frame are connected through the connecting bolts, so that when cleaning is needed, the filter box can be disassembled only by screwing off the connecting bolts, the filter box is convenient to disassemble, and the filter box is convenient to clean after being disassembled.

Description

Technical Field

[0001] The utility model relates to an oxygen chamber, in particular to an air inlet filtering device for an oxygen chamber. Background Art

[0002] An oxygen chamber is a dedicated medical device for oxygen therapy. According to different pressurizing media, it is divided into two types: an air pressurized chamber and a pure oxygen pressurized chamber. The oxygen chamber has a wide range of applications and is mainly used clinically for the treatment of anaerobic infections, CO poisoning, air embolism, decompression sickness, ischemic hypoxic encephalopathy, brain trauma, cerebrovascular diseases, etc.

[0003] Existing oxygen chambers generally are provided with an air inlet pipe, and a filtering device is installed on the air inlet pipe to ensure that the entering gas is relatively clean. However, the existing filtering device connected to the air inlet pipe generally includes a filter box and a filter plate inserted into the filter box. After long-term use, the filter plate can be directly pulled out for cleaning. However, after the filter plate is pulled out, actually a part of the dust still remains in the filter box, and the filter box itself is integral, so it is difficult to clean the filter box. Summary of the Utility Model

[0004] The utility model aims to solve the technical problem of providing an air inlet filtering device for an oxygen chamber that is convenient for cleaning the filter box.

[0005] To solve the above technical problem, the technical solution of an air inlet filtering device for an oxygen chamber of the utility model is as follows:

[0006] It includes a filter box; one end of the filter box is connected to an air inlet pipe, and the other end is connected to an air outlet pipe connected to the oxygen chamber. The filter box includes a front cover, a rear cover, a filter frame, and a mounting frame; the air inlet pipe is connected to the front cover, and the air outlet pipe is connected to the rear cover; the front cover, the rear cover, the filter frame, and the mounting frame are connected by connecting bolts; the filter frame is located between the rear cover and the mounting frame, and the mounting frame is located between the front cover and the filter frame; a filter plate is connected to the inner side of the filter frame; two first filter cylinders are arranged on the filter plate; two outlets corresponding to the two first filter cylinders respectively are opened on the mounting frame; filtering devices are detachably connected to the outlets of the mounting frame; the filtering devices include a front filter cylinder and a rear filter cylinder that are detachably installed front and back on the outlets of the mounting frame; the front filter cylinder and the rear filter cylinder respectively cover the front and rear sides of the outlet, and the rear filter cylinder is placed inside the first filter cylinder.

[0007] Threaded connection seats are connected to the four corners on the front side of the rear cover, and each threaded connection seat is provided with a connecting bolt corresponding to itself; the bottom end of the connecting bolt passes through the front cover, the mounting frame, and the filter frame and is threadedly connected to the threaded connection seat corresponding to itself.

[0008] A first sealing ring is connected between the rear cover and the filter frame; a second sealing ring is connected between the filter frame and the mounting frame; a third sealing ring is connected between the mounting frame and the front cover.

[0009] The pore diameter of the front filter cartridge is larger than that of the rear filter cartridge; the pore diameter of the rear filter cartridge is larger than that of the filter plate and the first filter cartridge.

[0010] The front filter cartridge and the rear filter cartridge are connected to the mounting frame by bolts.

[0011] The technical effects that can be achieved by the present utility model are as follows: The filter box of an oxygen cabin air intake filtering device of the present utility model includes a front cover, a rear cover, a filter frame and a mounting frame, and the front cover, the rear cover, the filter frame and the mounting frame are connected by connecting bolts. When cleaning is required, only the connecting bolts need to be unscrewed for disassembly, and the disassembly is relatively convenient and it is convenient to clean after disassembly; when the present utility model is in use, air enters through the air inlet pipe, and the entering gas is filtered by the front filter cartridge and then the rear filter cartridge in sequence, and finally filtered by the first filter cartridge or the filter plate, and then exits through the air outlet pipe, and the filtered gas is cleaner. BRIEF DESCRIPTION OF THE DRAWINGS

[0012] The following further describes the present utility model in detail with reference to the drawings and specific embodiments:

[0013] Figure 1 is a schematic structural diagram of an oxygen cabin air intake filtering device of the present utility model;

[0014] Figure 2 is Figure 1 an enlarged view of part A of

[0015] Figure 3 is an exploded view of an oxygen cabin air intake filtering device of the present utility model;

[0016] Figure 4 is Figure 3 an enlarged view of part B of

[0017] Figure 5 is a sectional view of an oxygen cabin air intake filtering device of the present utility model;

[0018] Figure 6 is Figure 5 an enlarged view of part C of

[0019] Figure 7 is a schematic structural diagram of the present utility model installed on an oxygen cabin. SPECIFIC EMBODIMENTS

[0020] The following further elaborates on the present utility model with reference to the drawings.

[0021] Refer to Figures 1 to 7 。

[0022] An oxygen chamber air intake filtering device includes a filter box. One end of the filter box is connected to an air inlet pipe 1, and the other end is connected to an air outlet pipe 2 connected to the oxygen chamber. The filter box includes a front cover 3, a rear cover 4, a filter frame 5, and a mounting frame 6. The air inlet pipe 1 is connected to the front cover 3, and the air outlet pipe 2 is connected to the rear cover 4. The front cover 3, the rear cover 4, the filter frame 5, and the mounting frame 6 are connected by connecting bolts 11. Specifically, threaded connection seats 12 are connected to the four corners on the front side of the rear cover 4. Each threaded connection seat 12 is provided with a corresponding connecting bolt 11. The bottom end of the connecting bolt 11 passes through the front cover 3, the mounting frame 6, and the filter frame 5 and is threadedly connected to the corresponding threaded connection seat 12. By dividing the filter box into four parts: the front cover 3, the rear cover 4, the filter frame 5, and the mounting frame 6, when cleaning is required, the four parts can be disassembled by unscrewing the connecting bolts 11 and then cleaned. This method of cleaning the inside of the filter box is relatively convenient and the filter box is relatively clean after cleaning.

[0023] The filter frame 5 is located between the rear cover 4 and the mounting frame 6, and the mounting frame 6 is located between the front cover 3 and the filter frame 5. A filter plate 7 is connected to the inside of the filter frame 5, and two first filter cylinders 8 are arranged on the filter plate 7. Two outlets 9 corresponding to the two first filter cylinders 8 are respectively formed on the mounting frame 6. Filtering devices are detachably connected to the outlets 9 of the mounting frame 6. The filtering devices include a front filter cylinder 10 and a rear filter cylinder 13 that are detachably installed on the front and rear of the outlet 9 of the mounting frame 6. The front filter cylinder 10 and the rear filter cylinder 13 respectively cover the front and rear sides of the outlet 9, and the rear filter cylinder 13 is placed inside the first filter cylinder 8. Specifically, the front filter cylinder 10 and the rear filter cylinder 13 are connected to the mounting frame 6 by bolts. To ensure the sealing performance, a first sealing ring 21 is connected between the rear cover 4 and the filter frame 5, a second sealing ring 22 is connected between the filter frame 5 and the mounting frame 6, and a third sealing ring 23 is connected between the mounting frame 6 and the front cover 3. Preferably, the pore diameter of the front filter cylinder 10 is larger than that of the rear filter cylinder 13, and the pore diameter of the rear filter cylinder 13 is larger than the pore diameters of the filter plate 7 and the first filter cylinder 8.

[0024] When the present utility model is in use, air enters through the air inlet pipe 1. The entering gas is first filtered by the front filter cylinder 10 and then by the rear filter cylinder 13, and then filtered by the first filter cylinder 8 or the filter plate 7, and finally exits through the air outlet pipe 2. The air outlet pipe 2 of the present utility model is used to connect to the air inlet pipeline of the oxygen chamber, so as to provide filtered gas for the oxygen chamber. Two outlets 9 are designed on the mounting frame 6 of the present utility model. The two outlets 9 are both connected with the front filter cylinder 10 and the rear filter cylinder 13 by bolts. After the front filter cylinder 10 or the rear filter cylinder 13 at one of the outlets 9 is blocked, it can still be filtered through the front filter cylinder 10 and the rear filter cylinder 13 at the other outlet 9, and it can still be filtered. Moreover, the front filter cylinder 10 and the rear filter cylinder 13 are connected by a detachable connection structure, which is convenient for subsequent disassembly and cleaning.

Claims

1. An oxygen chamber air intake filter device, comprising a filter box; one end of the filter box is connected to an air intake pipe (1), and the other end is connected to an air outlet pipe (2) connected to the oxygen chamber, characterized in that: The filter box comprises a front cover (3), a rear cover (4), a filter frame (5) and a mounting frame (6); the air inlet pipe (1) is connected to the front cover (3), and the air outlet pipe (2) is connected to the rear cover (4); the front cover (3), the rear cover (4), the filter frame (5) and the mounting frame (6) are connected by connecting bolts (11); the filter frame (5) is located between the rear cover (4) and the mounting frame (6), and the mounting frame (6) is located between the front cover (3) and the filter frame (5); a filter plate (7) is connected to the inner side of the filter frame (5); two filter plates (7) are provided on the filter plate (7); a first filter cartridge (8); the installation frame (6) is provided with two outlets (9) respectively corresponding to the two first filter cartridges (8); the outlets (9) of the installation frame (6) are detachably connected with a filter device; the filter device comprises a front filter cartridge (10) and a rear filter cartridge (13) which are detachably mounted on the outlets (9) of the installation frame (6) at the front and rear ends; the front filter cartridge (10) and the rear filter cartridge (13) respectively cover the front and rear sides of the outlets (9), and the rear filter cartridge (13) is built into the first filter cartridge (8).

2. An oxygen chamber air intake filter device according to claim 1, characterized in that: The four front corners of the rear cover (4) are connected to threaded connection seats (12), and each threaded connection seat (12) is provided with a corresponding connection bolt (11); the bottom end of the connection bolt (11) passes through the front cover (3), the installation frame (6), and the filter frame (5) and is threadedly connected to the corresponding threaded connection seat (12).

3. The oxygen chamber air intake filter device according to claim 1, characterized in that: A first sealing ring (21) is connected between the rear cover (4) and the filter frame (5); a second sealing ring (22) is connected between the filter frame (5) and the mounting frame (6); and a third sealing ring (23) is connected between the mounting frame (6) and the front cover (3).

4. The oxygen chamber air intake filter device according to claim 1, characterized in that: The filter hole diameter of the front filter cartridge (10) is larger than the filter hole diameter of the rear filter cartridge (13); the filter hole diameter of the rear filter cartridge (13) is larger than the filter hole diameters of the filter plate (7) and the first filter cartridge (8).

5. The oxygen chamber air intake filter device according to claim 1, characterized in that: The front filter cartridge (10) and the rear filter cartridge (13) are connected to the mounting frame (6) via bolts.

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