Air filtering device of oxygen generator

Abstract

The utility model discloses an air filtering device of an oxygen generator, and relates to the technical field of oxygen generators, the air filtering device of the oxygen generator comprises a box body, one side of the box body is provided with a plurality of air inlets, the box body is internally provided with a pair of wafers which are distributed up and down, the top surface of the upper wafer is integrally connected with an air conveying pipeline, and the top surface of the lower wafer is provided with a plurality of air outlets. A filter cloth bag is arranged between the upper and lower round sheets, and a flapping mechanism extending to the lower part of the box body is arranged in the filter cloth bag; according to the air filtering device of the oxygen generator, the cylindrical filter bag is adopted to filter air entering the oxygen generator, dust stays on the outer surface of the cylindrical filter bag, and all the beating rods can be driven to beat the inner wall of the cylindrical filter bag by pressing the circular seat upwards, so that the dust on the outer surface of the cylindrical filter bag can fall conveniently; a filter plate is not needed for filtering, and the filter plate does not need to be frequently replaced and cleaned, so that the use burden of a user can be effectively reduced.

Description

Technical Field

[0001] The utility model relates to the technical field of oxygen generators, in particular to an air filtering device for an oxygen generator. Background Art

[0002] An oxygen generator is a device for producing oxygen. It can separate oxygen from the air and supply it to people in need of oxygen (for example, it can supplement oxygen for people with respiratory diseases or hypoxemia, and can also supply oxygen to people in places such as plateau areas and sports stadiums). It is widely used.

[0003] Oxygen generators are all equipped with an air filtering device for air purification, which can prevent inhalation into the compressor and can provide cleaner oxygen. Most of the air filtering devices in the current oxygen generators on the market use filter nets or filter cores for filtration. After being used for a period of time, it needs to go through three steps: disassembly, cleaning, and installation, which is very inconvenient for cleaning and increases the cleaning burden on users. Content of the Utility Model

[0004] The utility model provides an air filtering device for an oxygen generator, which has the advantage of convenient cleaning, so as to solve the problems put forward in the background art.

[0005] In order to solve the defects in the cumbersome cleaning process of the air filtering device of the existing oxygen generator, the utility model provides the following technical solution: an air filtering device for an oxygen generator, including a box body. A plurality of air inlets are opened on one side of the box body. A pair of circular plates are arranged up and down in the box body. An air delivery pipe is integrally connected to the top surface of the upper circular plate. A filter cloth bag is arranged between the upper and lower circular plates. A flapping mechanism extending below the box body is arranged in the filter cloth bag. A hopper body is integrally connected to the inner wall of the lower part of the box body. A dust discharge port is opened at the bottom end of the box body. A collection cylinder matching the dust discharge port is threadedly connected to the bottom end of the box body.

[0006] As a preferred technical solution of the utility model, the filter cloth bag includes a pair of circular rings. A cylindrical filter bag is integrally connected between the upper and lower circular rings. A plurality of positioning columns are integrally connected to the bottom end of the lower circular ring.

[0007] As a preferred technical solution of the utility model, a plurality of positioning holes are opened on the top surface of the lower circular plate, and the positioning columns penetrate through the positioning holes.

[0008] As a preferred technical solution of the present utility model, the flapping mechanism includes a tooth column, and a plurality of gears are meshed and connected to the outer circumference of the tooth column. A flapping rod is integrally connected to the side wall of each gear. A convex rod is integrally connected to the bottom end of the tooth column. The convex rod extends below the box body. The convex rod is sleeved with a spring. A circular seat is integrally connected to the bottom end of the convex rod. The upper and lower ends of the spring are respectively welded and connected to the bottom surface of the box body and the top surface of the circular seat.

[0009] As a preferred technical solution of the present utility model, each group of the gears has four in total and is distributed up and down. A plurality of circumferentially distributed support bars are screwed and installed at the bottom end of the upper disc. Each group of the gears is respectively axially connected to each support bar.

[0010] As a preferred technical solution of the present utility model, the convex rod is sleeved with three bellows distributed up and down. An opening is formed on the other side of the box body.

[0011] Compared with the prior art, the present utility model provides an air filtering device for an oxygen generator, which has the following beneficial effects:

[0012] 1. For the air filtering device of the oxygen generator, the air entering the oxygen generator is filtered by a cylindrical filter bag. Dust stays on the outer surface of the cylindrical filter bag. By pressing the circular seat upward, all the flapping rods can be driven to strike the inner wall of the cylindrical filter bag, which is convenient for the dust on the outer surface of the cylindrical filter bag to fall. The collecting cylinder can collect the dust. The dust is far away from the air inlet and will not be disturbed after collection. The collection is stable. There is no need to use a filter plate for filtration, nor to frequently replace and clean the filter plate, which can effectively reduce the user's burden.

[0013] 2. For the air filtering device of the oxygen generator, a filter cloth bag composed of a cylindrical filter bag, a positioning column and a ring is provided, which can play a good role in dust filtration. At the same time, an opening is also provided, which makes the replacement of the whole filter cloth bag greatly convenient. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 is a schematic structural view of the present utility model;

[0015] Figure 2 is a front cross-sectional view of the present utility model;

[0016] Figure 3 is a distribution diagram of the support bars of the present utility model;

[0017] Figure 4 is a partial front cross-sectional view after the collecting cylinder of the present utility model is threadedly connected.

[0018] In the figure:

[0019] 10. Box body; 20. Air inlet; 30. Disc; 40. Air conveying pipeline; 50. Filter cloth bag; 51. Ring; 52. Cylindrical filter bag; 53. Positioning column; 60. Beating mechanism; 61. Tooth column; 62. Gear; 63. Beating rod; 64. Convex rod; 65. Spring; 66. Circular seat; 70. Hopper body; 80. Ash discharge port; 90. Collection cylinder; 100. Positioning hole; 110. Support bar; 120. Bellows; 130. Opening. Detailed implementation mode

[0020] Next, the technical solutions in the embodiments of the present invention will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative work shall fall within the protection scope of the present invention.

[0021] Please refer to Figures 1 - 4 , the present invention discloses an air filtration device for an oxygen generator, including a box body 10. A plurality of air inlets 20 are opened on one side of the box body 10. A pair of discs 30 distributed up and down are arranged in the box body 10. The top surface of the upper disc 30 is integrally connected with an air conveying pipeline 40. A filter cloth bag 50 is arranged between the upper and lower discs 30. A beating mechanism 60 extending below the box body 10 is arranged in the filter cloth bag 50. The inner wall of the lower part of the box body 10 is integrally connected with a hopper body 70. The bottom end of the box body 10 is provided with an ash discharge port 80. The bottom end of the box body 10 is threadedly connected with a collection cylinder 90 matching the ash discharge port 80.

[0022] During use, air enters through the air inlet 20. The clean air passes through the filter cloth bag 50, and dust and impurities stay on the outer surface of the filter cloth bag 50. The clean air enters the air conveying pipeline 40 and is transmitted to the inside of the oxygen generator for separation and purification; the upper and lower discs 30 are fixedly connected to the support rods on the front and rear inner walls of the box body 10, and there is a round hole at the center of the top surface of the upper disc 30, so that the filtered air can be conveyed into the air conveying pipeline 40.

[0023] Specifically, the filter cloth bag 50 includes a pair of rings 51. The upper and lower rings 51 are integrally connected with a cylindrical filter bag 52. A plurality of positioning columns 53 are integrally connected to the bottom end of the lower ring 51. A plurality of positioning holes 100 are opened on the top surface of the lower disc 30, and the positioning columns 53 penetrate through the positioning holes 100.

[0024] In this implementation scheme, during installation, the upper ring 51 is threadedly connected to the bottom surface of the upper disc 30, and then the positioning columns 53 are made to penetrate through the lower positioning holes 100. At the same time, the lower ring 51 and the positioning columns 53 also act as a counterweight. After the filter cloth bag 50 is installed, it is stable and convenient to disassemble, which is convenient for subsequent replacement.

[0025] Specifically, the flapping mechanism 60 includes a toothed column 61. A plurality of groups of gears 62 are meshed and connected to the outer circumference of the toothed column 61. A flapping rod 63 is integrally connected to the side wall of each gear 62. A convex rod 64 is integrally connected to the bottom end of the toothed column 61. The convex rod 64 extends below the box body 10. A spring 65 is sleeved on the convex rod 64. A circular seat 66 is integrally connected to the bottom end of the convex rod 64. The upper and lower ends of the spring 65 are respectively welded to the bottom surface of the box body 10 and the top surface of the circular seat 66.

[0026] In this embodiment, the user can press the circular seat 66 upward. The spring 65 elastically contracts, the convex rod 64 moves upward, the toothed column 61 moves upward and drives all the gears 62 to rotate. The gears 62 drive the flapping rods 63 to swing downward and strike the inner wall of the cylindrical filter bag 52. At this time, the cylindrical filter bag 52 is deformed, and the dust on its outer surface falls off and drops into the hopper body 70 directly below, and finally falls into the collection cylinder 90 through the ash discharge port 80. This can be repeated multiple times, and the cleaning is convenient. There is no need to disassemble and clean, which greatly reduces the cleaning burden of the user.

[0027] Specifically, each group of gears 62 has a total of four, and they are distributed vertically. A plurality of circumferentially distributed support bars 110 are installed at the bottom end of the upper circular plate 30 by screws. Each group of gears 62 is respectively axially connected to each support bar 110.

[0028] In this embodiment, the support bars 110 play a role in installing the gears 62, preventing the gears 62 from being in a suspended state, and enabling the gears 62 to be stably meshed and connected with the toothed column 61.

[0029] Specifically, three bellows 120 are sleeved on the convex rod 64, and an opening 130 is formed on the other side of the box body 10.

[0030] In this embodiment, the upper bellows 120 is fixedly connected to the bottom surface of the lower circular plate 30, the middle bellows 120 is fixedly connected to the inner wall below the box body 10, and the lower bellows 120 is fixedly connected to the bottom surface of the box body 10 and the top surface of the circular seat 66, which can play a sealing role. The setting of the opening 130 facilitates the removal of the filter cloth bag 50 from the inside of the box body 10.

[0031] It should be noted that in this article, terms such as "including", "comprising" or any other variant thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements not only includes those elements, but also includes other elements not expressly listed, or further includes elements inherent to such process, method, article or device. Without further limitation, an element defined by the statement "including a..." does not exclude the existence of additional identical elements in the process, method, article or device including the said element.

[0032] Although embodiments of the present utility model have been shown and described, those of ordinary skill in the art can understand that various changes, modifications, substitutions, and variations can be made to these embodiments without departing from the principle and spirit of the present utility model. The scope of the present utility model is defined by the appended claims and their equivalents.

Claims

1. An air filtration device for an oxygen generator, characterized in that: The invention comprises a box body (10), wherein one side of the box body (10) is provided with a plurality of air inlets (20), a pair of discs (30) distributed up and down are provided in the box body (10), the top surface of the upper disc (30) is integrally connected to a gas pipeline (40), a filter bag (50) is provided between the upper and lower discs (30), a beating mechanism (60) extending to the bottom of the box body (10) is provided in the filter bag (50), a bucket (70) is integrally connected to the lower inner wall of the box body (10), an ash discharge port (80) is provided at the bottom end of the box body (10), and a collecting cylinder (90) matching the ash discharge port (80) is threadedly connected to the bottom end of the box body (10).

2. The air filtration device of the oxygen generator according to claim 1, characterized in that: The filter cloth bag (50) comprises a pair of circular rings (51), the upper and lower circular rings (51) being integrally connected to a cylindrical filter bag (52), and the bottom end of the lower circular ring (51) being integrally connected to a plurality of positioning posts (53).

3. The air filtration device of the oxygen generator according to claim 2, wherein: A plurality of positioning holes (100) are formed on the top surface of the lower disc (30), and the positioning posts (53) pass through the positioning holes (100).

4. The air filtering device of the oxygen generator according to claim 1, characterized in that: The beating mechanism (60) comprises a tooth column (61), the outer circumference of the tooth column (61) is meshingly connected to a plurality of groups of gears (62), the side wall of each gear (62) is integrally connected to a beating rod (63), the bottom end of the tooth column (61) is integrally connected to a protruding rod (64), the protruding rod (64) extends to the bottom of the box body (10), the protruding rod (64) is sleeved with a spring (65), the bottom end of the protruding rod (64) is integrally connected to a circular seat (66), and the upper and lower ends of the spring (65) are respectively welded to the bottom surface of the box body (10) and the top surface of the circular seat (66).

5. The air filtering device of an oxygen generator according to claim 4, wherein: Each group of gears (62) has four gears in total and are distributed up and down. The bottom end of the upper disc (30) is screwed with a plurality of circumferentially distributed support bars (110), and each group of gears (62) is connected to the axis of each support bar (110).

6. The air filtering device of the oxygen generator according to claim 4, characterized in that: The protruding rod (64) is sleeved with three corrugated tubes (120) distributed vertically, and the other side of the box body (10) is provided with an opening (130).

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