Gas filtering assembly for oxygen generator

Abstract

The utility model provides a gas filtering component for an oxygen generator, which comprises a filtering box with an opening at the top, a gas inlet pipe is arranged at the left end of the filtering box, a gas outlet pipe is arranged at the right end of the filtering box, and a box cover, a fixed frame, a dust filtering net, a dust collector, a telescopic push rod, a dust collection cover, a feeding pipe, a material guide hose and a material scraping plate are detachably arranged at the top of the filtering box. According to the gas filtering assembly for the oxygen generator, disclosed by the utility model, not only can the basic requirement of filtering dust impurities in gas be met, but also the dust impurities intercepted on the filtering structure can be conveniently cleaned through the material cleaning structure under the condition that the material cleaning structure does not need to be disassembled; and therefore, the filtering structure can continuously and effectively filter gas, the efficiency of disassembling and cleaning the filtering structure is reduced, and the use requirements of people are better met.

Description

Technical Field

[0001] The utility model belongs to the technical field of oxygen concentrators, and particularly relates to a gas filtering component for an oxygen concentrator. Background Art

[0002] During the operation of the oxygen concentrator, the air needs to be filtered to remove dust and impurities in the air. Although the existing gas filter components for oxygen concentrators can meet the basic needs of air filtering, during use, when a large number of impurities are trapped on the filter structure, due to the lack of an automatic cleaning structure, the user can only disassemble the filter structure for cleaning at short intervals, which increases the user's workload and affects the overall efficiency of gas filtering.

[0003] For example, the utility model with the announcement number CN 214972608 U discloses a gas filter assembly for an oxygen generator. In the technical solution of this patent, the air is filtered only by a detachable filter structure, but there is no cleaning structure for cleaning the filter structure. Therefore, the user needs to clean the filter structure at short intervals, which will cause great trouble to people's use and affect the overall efficiency of gas filtering. Utility Model Content

[0004] In view of this, the utility model aims at the deficiencies of the prior art and provides a gas filter assembly for an oxygen concentrator, which can not only meet the basic demand for filtering out dust impurities in the gas, but also can conveniently clean the dust impurities trapped on the filter structure through the cleaning structure without disassembly, so that the filter structure can continuously and effectively filter the gas and reduce the efficiency of disassembling and cleaning the filter structure, thereby better meeting people's usage needs.

[0005] In order to solve the above technical problems, the technical solution adopted by the utility model is: a gas filter assembly for an oxygen concentrator, comprising a filter box with an opening at the top, an air inlet pipe is arranged at the left end of the filter box, an air outlet pipe is arranged at the right end of the filter box, a box cover is detachably arranged on the top of the filter box, a fixing frame which can be clamped and fixed with the inner wall of the middle part of the filter box is detachably arranged on the bottom of the box cover, a dust filter net is arranged in the fixing frame, a dust collector is also arranged on the top of the box cover, a telescopic push rod is vertically arranged on the box cover, a dust hood is arranged at the lower end of the output shaft of the telescopic push rod, a feed pipe extending to the bottom of the box cover and located on the left side of the dust filter net is arranged at the feed end of the vacuum cleaner, a material guide hose connected with the feed pipe is also arranged on the dust hood, and a scraper plate adapted to the dust filter net is also arranged on the inner wall of the dust hood.

[0006] As a further improvement of the utility model, the box cover is fixed to the filter box by snap connection, the box cover is also provided with fixing bolts for threading and fixing the filter box, and the filter box is also provided with threaded fixing holes matched with the fixing bolts.

[0007] As a further improvement of the utility model, the fixing bolt is a hand-tightened bolt.

[0008] As a further improvement of the utility model, the front and rear side ends of the filter box are also provided with guide slide grooves adapted to the dust hood, and the front and rear side ends of the dust hood are also respectively provided with guide sliders adapted to the corresponding guide slide grooves.

[0009] As a further improvement of the utility model, a handle is also provided on the box cover.

[0010] As a further improvement of the utility model, a first sealing ring adapted to the fixed frame is further provided on the inner wall of the filter box, and a second sealing ring adapted to the box cover is further provided on the outer wall of the filter box.

[0011] As a further improvement of the utility model, a fastening slot is provided at the bottom of the box cover and is fixed to the upper end of the fixed frame. The fastening slot is also provided with a fastening bolt for threading and fixing the fastening slot. The fixed frame is provided with a threaded fastening hole compatible with the fastening bolt.

[0012] Compared with the prior art, the beneficial effects of the utility model are as follows:

[0013] Firstly, the user can pass the gas that needs to be filtered into the filter box through the air inlet pipe. When the gas passes through the dust filter, the dust will be intercepted because it cannot pass through the filter holes of the dust filter. The airflow will pass through the filter holes of the dust filter and then leave through the air outlet pipe, so that the gas is filtered out of the dust. After a period of time, when a lot of dust is intercepted on the dust filter, there is no need to directly disassemble the dust filter for cleaning. The user can start the vacuum cleaner and extend the output shaft of the telescopic push rod downward by a certain length, so that the dust hood and the scraper plate move downward, and the dust adhering to the left side of the dust filter is scraped and cleaned by the scraper plate, and the dust shallowly attached to the dust filter and the dust scraped from the dust filter is absorbed by the dust hood, and enters the vacuum cleaner through the material guide hose and the feed pipe to be collected, so that the user does not need to frequently disassemble and clean the dust filter.

[0014] Secondly, the box cover and the filter box can be flexibly fixed by simply clamping and fixing the box cover and then passing the fixing bolts through the side wall of the box cover and screwing and fixing them with the threaded fixing holes.

[0015] Thirdly, the first sealing ring can improve the sealing performance at the connection between the fixed frame and the filter box, and the second sealing ring can improve the sealing performance at the connection between the filter box and the box cover.

[0016] Fourthly, the fixing frame and the box cover can be flexibly fixed by simply clamping the fixing frame and the fastening slot, and then passing the fastening bolts through the side walls of the fastening slot and screwing them into the threaded fastening holes. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] The utility model is further described in detail below in conjunction with the accompanying drawings and specific implementation methods.

[0018] Figure 1 It is a structural schematic diagram of the utility model;

[0019] Figure 2 It is a structural schematic diagram of the filter box, air inlet pipe, air outlet pipe, first sealing ring and second sealing ring of the utility model;

[0020] Figure 3 It is a structural schematic diagram of the box cover, fixed frame, dust filter, vacuum cleaner, telescopic push rod, dust hood, feed pipe, material guide hose, scraper plate, fastening slot, fastening bolts, and guide slider of the utility model;

[0021] Figure 4 It is a structural schematic diagram of the filter box, the guide chute, the first sealing ring and the second sealing ring of the utility model.

[0022] In the figure: 101, filter box; 102, air inlet pipe; 103, air outlet pipe; 104, box cover; 105, fixed frame; 106, dust filter; 107, vacuum cleaner; 108, telescopic push rod; 109, dust hood; 110, feed pipe; 111, material guide hose; 112, scraper plate; 113, fixing bolt; 114, fastening slot; 115, fastening bolt; 201, guide slide; 202, guide slider; 203, handle; 204, first sealing ring; 205, second sealing ring. DETAILED DESCRIPTION

[0023] In order to better understand the present invention, the content of the present invention is further clearly described below in conjunction with the embodiments, but the protection content of the present invention is not limited to the following embodiments. In the following description, a large number of specific details are given in order to provide a more thorough understanding of the present invention. However, it is obvious to those skilled in the art that the present invention can be implemented without one or more of these details.

[0024] like Figure 1 , 23, a gas filter assembly for an oxygen concentrator includes a filter box 101 with an opening at the top, an air inlet pipe 102 is provided at the left end of the filter box 101, an air outlet pipe 103 is provided at the right end of the filter box 101, a box cover 104 is detachably provided at the top of the filter box 101, a fixing frame 105 that can be snap-fitted and fixed to the inner wall of the middle part of the filter box 101 is detachably provided at the bottom of the box cover 104, a dust filter 106 is provided in the fixing frame 105, and a dust filter 106 is provided in the box cover 104. A vacuum cleaner 107 is also provided on the top, a telescopic push rod 108 is vertically provided on the box cover 104, a dust hood 109 is provided at the lower end of the output shaft of the telescopic push rod 108, a feed end of the vacuum cleaner 107 is provided with a feed pipe 110 extending to the bottom of the box cover 104 and located on the left side of the dust filter 106, a material guide hose 111 connected to the feed pipe 110 is also provided on the dust hood 109, and a scraper plate 112 adapted to the dust filter 106 is also provided on the inner wall of the dust hood 109.

[0025] like Figure 1 , 2 As shown in FIG. 3 , the box cover 104 is fixedly connected with the filter box 101, and the box cover 104 is also provided with a fixing bolt 113 for screwing the filter box 101, and the filter box 101 is also provided with a threaded fixing hole adapted to the fixing bolt 113. The box cover 104 and the filter box 101 only need to be fixedly connected with each other, and then the fixing bolt 113 passes through the side wall of the box cover 104 and is screwed and fixed with the threaded fixing hole, so that the box cover 104 and the filter box 101 can be flexibly fixed. The fixing bolt 113 is a hand-tightening bolt. The user can conveniently turn and adjust the fixing bolt 113 by hand.

[0026] like Figure 1 , 2 As shown in Figures 3 and 4, the bottom of the box cover 104 is provided with a fastening slot 114 which is clamped and fixed with the upper end of the fixing frame 105, and the fastening slot 114 is also provided with a fastening bolt 115 which is used to screw and fix the fastening slot 114, and the fixing frame 105 is provided with a threaded fastening hole which is compatible with the fastening bolt 115. The fixing frame 105 and the box cover 104 can be flexibly fixed by clamping and fixing the fixing frame 105 with the fastening slot 114, and then passing the fastening bolt 115 through the side wall of the fastening slot 114 and screwing and fixing it with the threaded fastening hole.

[0027] The user can pass the gas that needs to be filtered into the filter box 101 through the air inlet pipe 102. When the gas passes through the dust filter 106, the dust will be trapped because it cannot pass through the filter holes of the dust filter 106. The air flow will pass through the filter holes of the dust filter 106 and then leave through the air outlet pipe 103, so that the dust is filtered out of the gas; after a period of time, when a lot of dust is trapped on the dust filter 106, there is no need to directly disassemble the dust filter 106 for cleaning. The user can start the vacuum cleaner 107 and make the output shaft of the telescopic push rod 108 move downward. The dust hood 109 and the scraper plate 112 are extended to a certain length so that they can move downward, and the dust adhering to the left side of the dust filter 106 is scraped and cleaned by the scraper plate 112, and the dust shallowly attached to the dust filter 106 and the dust scraped from the dust filter 106 are absorbed by the dust hood 109, and enter the vacuum cleaner 107 through the material guide hose 111 and the feed pipe 110 to be collected, so that the user does not need to frequently disassemble and clean the dust filter 106, so that the dust filter 106 can continue to work effectively for a long time.

[0028] According to another embodiment of the present invention, Figure 2 , 4 As shown, the front and rear side ends of the filter box 101 are also provided with guide slots 201 adapted to the dust cover 109, and the front and rear side ends of the dust cover 109 are also respectively provided with guide sliders 202 adapted to the corresponding guide slots 201. Through the cooperation of the guide slots 201 and the guide sliders 202, the dust cover 109 and the scraper plate 112 can be moved vertically stably to avoid lateral deviation.

[0029] According to another embodiment of the present invention, Figure 1 As shown, a handle 203 is also provided on the box cover 104. Through the handle 203, the box cover 104 can be easily moved, and the clamping fixation of the box cover 104 and the filter box 101 can be easily realized or released.

[0030] According to another embodiment of the present invention, Figure 2 , 4 As shown, a first sealing ring 204 adapted to the fixed frame 105 is also provided on the inner wall of the filter box 101, and a second sealing ring 205 adapted to the box cover 104 is also provided on the outer wall of the filter box 101. The first sealing ring 204 can improve the sealing performance of the connection between the fixed frame 105 and the filter box 101, and the second sealing ring 205 can improve the sealing performance of the connection between the filter box 101 and the box cover 104.

[0031] The above are preferred implementations of the present utility model. It should be pointed out that, for ordinary technicians in this technical field, several improvements and modifications can be made without departing from the principle of the present utility model. These improvements and modifications should also be regarded as the protection scope of the present utility model.

Claims

1. A gas filter assembly for an oxygen concentrator, comprising a filter box (101) with a top opening, characterized in that: The left end of the filter box (101) is provided with an air inlet pipe (102), the right end of the filter box (101) is provided with an air outlet pipe (103), the top of the filter box (101) is detachably provided with a box cover (104), the bottom of the box cover (104) is detachably provided with a fixing frame (105) that can be snap-fitted and fixed to the inner wall of the middle part of the filter box (101), a dust filter (106) is provided in the fixing frame (105), a dust collector (107) is also provided on the top of the box cover (104), and the box cover (104) is provided with a dust filter (106). A telescopic push rod (108) is vertically arranged on the box cover (104), a dust cover (109) is arranged at the lower end of the output shaft of the telescopic push rod (108), a feeding end of the dust collector (107) is provided with a feeding pipe (110) extending to the bottom of the box cover (104) and located on the left side of the dust filter (106), a material guide hose (111) connected to the feeding pipe (110) is also arranged on the dust cover (109), and a scraper plate (112) adapted to the dust filter (106) is also arranged on the inner wall of the dust cover (109).

2. The gas filter assembly for an oxygen concentrator according to claim 1, characterized in that: The box cover (104) is fixedly connected to the filter box (101) by snapping, and a fixing bolt (113) for threading and fixing the filter box (101) is also provided on the box cover (104), and a threaded fixing hole matched with the fixing bolt (113) is also provided on the filter box (101).

3. The gas filter assembly for an oxygen concentrator according to claim 2, characterized in that: The fixing bolt (113) is a hand-tightened bolt.

4. The gas filter assembly for an oxygen concentrator according to claim 3, characterized in that: The front and rear side ends of the filter box (101) are also provided with guide slide grooves (201) adapted to the dust hood (109), and the front and rear side ends of the dust hood (109) are also respectively provided with guide sliding blocks (202) adapted to the corresponding guide slide grooves (201).

5. The gas filter assembly for an oxygen concentrator according to claim 4, characterized in that: The box cover (104) is also provided with a handle (203).

6. The gas filter assembly for an oxygen concentrator according to claim 5, characterized in that: A first sealing ring (204) adapted to the fixed frame (105) is also provided on the inner wall of the filter box (101), and a second sealing ring (205) adapted to the box cover (104) is also provided on the outer wall of the filter box (101).

7. The gas filter assembly for an oxygen concentrator according to claim 6, characterized in that: The bottom of the box cover (104) is provided with a fastening slot (114) which is clamped and fixed to the upper end of the fixing frame (105); the fastening slot (114) is also provided with a fastening bolt (115) for screwing and fixing the fastening slot (114); and the fixing frame (105) is provided with a threaded fastening hole which is compatible with the fastening bolt (115).

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