A filter screen self-cleaning device for an oxygen generator

Abstract

This utility model provides a self-cleaning device for an oxygen concentrator filter, relating to the field of oxygen concentrator cleaning. It includes a housing with a filter screen fixedly embedded in its front side. A sleeve is fixedly connected to the inner wall of the housing, and a negative pressure fan is fixedly connected to the surface of the sleeve. A three-way pipe is fixedly connected to the top of the negative pressure fan. By controlling the rotation of the electric ball valve at the top of the three-way pipe, the negative pressure fan draws in purified air into a storage tank for pressurization. The electric ball valve at the top of the three-way pipe closes, while the electric ball valve on the side of the storage tank, which is closed by default, opens. Compressed gas flushes the filter screen through a backflushing groove, facilitating automatic cleaning and improving the device's adaptability. A U-shaped air duct is formed between the inside of the channel and the inside of the ash collection box, allowing heavier dust to easily fall into the ash collection box. Then, by rotating the lever upwards to a suitable angle, the ash collection box can be pulled out from the guide rail, facilitating cleaning and improving the device's cleanliness.

Description

Technical Field

[0001] This utility model relates to the field of oxygen concentrator cleaning, and in particular to a self-cleaning device for oxygen concentrator filters. Background Technology

[0002] Oxygen concentrators are an important means of oxygen therapy, which is mainly used to correct hypoxia, improve tissue hypoxia, promote metabolism, and maintain bodily vital functions. It is one of the important medical methods for the adjunctive treatment of various diseases. It can be used to assist the human respiratory system, improve insufficient ventilation, and regulate hypoxia caused by uneven ventilation-perfusion ratio. It is contraindicated for patients with oxygen toxicity or oxygen allergy.

[0003] Oxygen concentrators need to purify the air they draw in when they are working. After long-term use, dust may accumulate on the surface of the filter, which needs to be cleaned in time.

[0004] In the prior art, such as the Chinese patent application CN 220142908 U, a filter removal mechanism for an oxygen concentrator includes an oxygen concentrator body. The side wall of the oxygen concentrator body has a placement groove. The top and bottom of the placement groove have an air inlet groove and a square groove, respectively. A connecting ring is provided in the air inlet groove. A filter cartridge is fixedly connected to the bottom of the connecting ring. A sliding plate is fixedly connected to the top of the square groove by a spring. A corresponding block is fixedly connected to the top of the sliding plate, and the corresponding block is adapted to the inside of the filter cartridge. This solves the problem of fixing the filter with bolts and nuts. However, this fixing method makes the removal and installation of the filter too cumbersome, consuming manpower and time, thus affecting the efficiency of installation and removal.

[0005] The aforementioned application achieves the disassembly of the filter screen through a multi-component structure, which facilitates cleaning and maintenance. However, this operation results in a cumbersome and time-consuming process, which not only increases the difficulty but also reduces the overall convenience and timeliness to some extent by affecting the normal use of the equipment. Utility Model Content

[0006] This invention uses compressed gas to flush the filter screen through a backflushing tank, which facilitates automatic cleaning of the device and improves its adaptability. The ash storage box can be pulled out of the guide rail for easy cleaning of the device, thus solving the problems mentioned in the background art.

[0007] To achieve the above objectives, the present invention adopts the following technical solution: an oxygen generator filter self-cleaning device, comprising a housing, a filter screen fixedly embedded in the front side of the housing, a sleeve fixedly connected to the inner wall of the housing, a negative pressure fan fixedly connected to the surface of the sleeve, a three-way pipe fixedly connected to the top of the negative pressure fan, an electric ball valve fixedly installed on the top of the three-way pipe, a connecting pipe fixedly connected to the side of the three-way pipe, a storage tank fixedly connected to the inner wall of the housing, a backflushing groove fixedly connected to the surface of the sleeve, and a collection mechanism fixedly connected to the outer surface of the housing;

[0008] The collection mechanism includes a channel, a guide rail is provided below the channel, and a dust collection box is slidably installed on the inner side of the guide rail. The arrangement of the above components facilitates the device to automatically backwash the filter screen and collect the cleaned dust, thereby improving the cleanliness of the device.

[0009] Preferably, one end of the guide rail is fixedly connected to the surface of the outer shell, and the top surface of the ash storage box is in contact with the bottom surface of the channel. The connection between the guide rail and the ash storage box improves the sealing performance of the ash storage box during installation.

[0010] Preferably, a rotating rod is rotatably connected to the front side of the channel. One end of the rotating rod is disc-shaped. The shape of the rotating rod allows it to hang down stably, making it easy for the rotating rod to fall in front of the ash storage box and limit the position of the ash storage box.

[0011] Preferably, the interior of the channel and the interior of the ash storage box form a U-shaped air duct, and several baffles are fixedly connected to the inner bottom surface of the ash storage box. Through the set channel and the shape of the ash storage box, it is convenient for heavier dust to fall into the ash storage box when the air flows, thus improving the cleanliness of the device.

[0012] Preferably, one side of the three-way pipe is fixedly connected to the surface of the storage tank via a connecting pipe, and the surface of the storage tank is fixedly connected to the backflushing groove via the connecting pipe. The connection of the storage tank via the connecting pipe facilitates the ejection of pressurized gas through the backflushing groove.

[0013] Preferably, a reaction chamber is fixedly connected to the inner bottom surface of the outer shell, and an exhaust hole is provided on the surface of the reaction chamber. A cover plate is fixedly installed on the rear side of the outer shell. The installation position of the exhaust hole of the reaction chamber is designed to facilitate the normal operation of the device and to prevent interference with the cleaning parts.

[0014] Preferably, the backwash groove is installed directly behind the filter screen. The location of the backwash groove facilitates the device to effectively clean the filter screen.

[0015] Compared with the prior art, the advantages and positive effects of this utility model are as follows:

[0016] 1. In this utility model, by controlling the rotation of the electric ball valve at the top of the three-way pipe, the negative pressure fan draws in the purified air and pressurizes it into the storage tank. The electric ball valve at the top of the three-way pipe is closed, and the electric ball valve on the side of the storage tank, which is closed by default, is opened. The compressed gas is flushed by the backwash groove to wash the filter screen, which facilitates automatic cleaning of the device and improves the adaptability of the device.

[0017] 2. In this utility model, a U-shaped air duct is formed between the inside of the channel and the inside of the ash storage box. Heavier dust can easily fall into the ash storage box. Then, the rotating rod is rotated upward to a suitable angle to pull the ash storage box out of the guide rail, which makes it easier to clean the device and improves the cleanliness of the device. Attached Figure Description

[0018] Figure 1 This utility model provides a perspective view of the main structure of a self-cleaning device for an oxygen generator filter.

[0019] Figure 2 An enlarged perspective view of the channel-connected structure in the self-cleaning device for an oxygen generator filter is provided for this utility model.

[0020] Figure 3 This utility model provides a side view of the structure of a self-cleaning device for an oxygen generator filter.

[0021] Figure 4 This invention presents an enlarged perspective view of the backflushing groove connected in a self-cleaning device for an oxygen generator filter.

[0022] Legend: 1. Outer shell; 2. Filter screen; 3. Housing; 4. Negative pressure fan; 5. T-pipe; 6. Electric ball valve; 7. Connecting pipe; 8. Reaction chamber; 9. Exhaust port; 10. Storage tank; 11. Backflushing groove; 12. Cover plate; 13. Collection mechanism; 131. Channel; 132. Guide rail; 133. Ash storage box; 134. Rotating rod; 135. Baffle. Detailed Implementation

[0023] To better understand the above-mentioned objectives, features, and advantages of this utility model, the present utility model will be further described below with reference to the accompanying drawings and embodiments. It should be noted that, unless otherwise specified, the embodiments and features described in these embodiments can be combined with each other.

[0024] Many specific details are set forth in the following description in order to provide a full understanding of the present invention. However, the present invention may also be implemented in other ways different from those described herein. Therefore, the present invention is not limited to the specific embodiments disclosed in the following specification.

[0025] Please see Figures 1-4This utility model provides a technical solution: an oxygen generator filter self-cleaning device, including a shell 1, a filter 2 fixedly embedded on the front side of the shell 1, a sleeve 3 fixedly connected to the inner wall of the shell 1, a negative pressure fan 4 fixedly connected to the surface of the sleeve 3, a three-way pipe 5 fixedly connected to the top of the negative pressure fan 4, an electric ball valve 6 fixedly installed on the top of the three-way pipe 5, a connecting pipe 7 fixedly connected to the side of the three-way pipe 5, a storage tank 10 fixedly connected to the inner wall of the shell 1, a backflushing groove 11 fixedly connected to the surface of the sleeve 3, and a collection mechanism 13 fixedly connected to the outer surface of the shell 1;

[0026] The collection mechanism 13 includes a channel 131, a guide rail 132 is provided below the channel 131, and a dust collection box 133 is slidably installed on the inner side of the guide rail 132. With the above components, the device can automatically backwash the filter screen 2 and collect the cleaned dust, thus improving the cleanliness of the device.

[0027] like Figure 2 As shown, one end of the guide rail 132 is fixedly connected to the surface of the outer shell 1, and the top surface of the ash storage box 133 is in contact with the bottom surface of the channel 131. The connection between the guide rail 132 and the ash storage box 133 improves the sealing performance of the ash storage box 133 during installation.

[0028] like Figure 2 As shown, a rotating rod 134 is rotatably connected to the front side of the channel 131. One end of the rotating rod 134 is in the shape of a disc. The shape of the rotating rod 134 allows it to hang down stably, making it easy for the rotating rod 134 to fall in front of the ash storage box 133 and limit the position of the ash storage box 133.

[0029] like Figure 2 As shown, the interior of the channel 131 and the interior of the ash storage box 133 form a U-shaped air duct. Several baffles 135 are fixedly connected to the inner bottom surface of the ash storage box 133. Through the design of the channel 131 and the shape of the ash storage box 133, it is convenient for heavier dust to fall into the ash storage box 133 when the air flows, thus improving the cleanliness of the device.

[0030] like Figure 4 As shown, one side of the three-way pipe 5 is fixedly connected to the surface of the storage tank 10 through the connecting pipe 7. The surface of the storage tank 10 is fixedly connected to the backflushing groove 11 through the connecting pipe 7. The connection of the connecting pipe 7 to the storage tank 10 facilitates the pressurized gas to be ejected through the backflushing groove 11.

[0031] like Figure 4 As shown, a reaction chamber 8 is fixedly connected to the inner bottom surface of the outer shell 1. An exhaust hole 9 is provided on the surface of the reaction chamber 8. A cover plate 12 is fixedly installed on the rear side of the outer shell 1. The installation position of the exhaust hole 9 of the reaction chamber 8 is designed to facilitate the normal operation of the device and to prevent interference with the cleaning parts.

[0032] like Figure 3 As shown, the backwash groove 11 is installed directly behind the filter screen 2. The position of the backwash groove 11 facilitates the device to effectively clean the filter screen 2.

[0033] The operating method and working principle of this device are as follows: First, start the negative pressure fan 4 through the external power supply. External air enters through the channel 131, passes through the filter screen 2, and then enters the housing 3. The negative pressure fan 4 draws in the purified air. At this time, start the electric ball valve 6 at the top of the three-way pipe 5 through the external power supply to allow the air to enter the reaction chamber 8 through the connecting pipe 7 for reaction. After the air is made into a relatively rich oxygen air, it is discharged through the exhaust port 9. When the device has been working for a long time and a lot of dust is attached to the surface of the filter screen 2, the electric ball valve 6 at the top of the three-way pipe 5 rotates, allowing the negative pressure fan 4 to draw in the purified air into the storage tank 10 for pressurization. When the storage tank 10 stores a certain amount of air, the electric ball valve 6 at the top of the three-way pipe 5 closes, and the electric ball valve 6 on the side of the storage tank 10, which is closed by default, opens. The compressed gas is flushed by the backwash tank 11 to rinse the filter screen 2.

[0034] Based on this, since the interior of the channel 131 and the interior of the ash storage box 133 form a U-shaped air duct, and several baffles 135 are fixedly connected to the inner bottom surface of the ash storage box 133, when the air flows, heavier dust is more likely to fall into the interior of the ash storage box 133. Then, rotate the rotating rod 134 upward to a suitable angle to pull the ash storage box 133 out of the guide rail 132, which is convenient for cleaning the device.

[0035] The negative pressure fan 4, electric ball valve 6, and connecting pipe 7 used in this application are all common conventional equipment on the market and are well known to those skilled in the art. In this application, the above equipment is used in a conventional manner without any improvement to its structure and function. As for their settings, installation, and electrical connection methods, those skilled in the art can debug and operate them according to the corresponding product instruction manuals, so they will not be described in detail here.

[0036] The above description is merely a preferred embodiment of the present utility model and is not intended to limit the present utility model in any other way. Any person skilled in the art may make changes or modifications to the above-disclosed technical content to create equivalent embodiments for application in other fields. However, any simple modifications, equivalent changes, and modifications made to the above embodiments based on the technical essence of the present utility model without departing from the technical solution of the present utility model shall still fall within the protection scope of the present utility model.

Claims

1. An oxygen generator filter screen self-cleaning device, characterized in that, Includes an outer shell (1), a filter screen (2) is fixedly embedded on the front side of the outer shell (1), a sleeve (3) is fixedly connected to the inner wall of the outer shell (1), a negative pressure fan (4) is fixedly connected to the surface of the sleeve (3), a three-way pipe (5) is fixedly connected to the top of the negative pressure fan (4), an electric ball valve (6) is fixedly installed on the top of the three-way pipe (5), a connecting pipe (7) is fixedly connected to the side of the three-way pipe (5), a storage tank (10) is fixedly connected to the inner wall of the outer shell (1), a backflushing groove (11) is fixedly connected to the surface of the sleeve (3), and a collection mechanism (13) is fixedly connected to the outer surface of the outer shell (1). The collection mechanism (13) includes a channel (131), a guide rail (132) is provided below the channel (131), and a ash storage box (133) is slidably installed on the inner side of the guide rail (132).

2. The oxygen concentrator filter self-cleaning device according to claim 1, characterized in that: One end of the guide rail (132) is fixedly connected to the surface of the outer shell (1), and the top surface of the ash storage box (133) is in contact with the bottom surface of the channel (131).

3. The filter screen self-cleaning device of claim 1, wherein: A rotating rod (134) is rotatably connected to the front side of the channel (131), and one end of the rotating rod (134) is in the shape of a disc.

4. The filter screen self-cleaning device of claim 1, wherein: The interior of the channel (131) and the interior of the ash storage box (133) form a U-shaped air duct, and several baffles (135) are fixedly connected to the inner bottom surface of the ash storage box (133).

5. The filter screen self-cleaning device of claim 1, wherein: One side of the three-way pipe (5) is fixedly connected to the surface of the storage tank (10) through the connecting pipe (7), and the surface of the storage tank (10) is fixedly connected to the backflushing groove (11) through the connecting pipe (7).

6. The filter screen self-cleaning device of claim 1, wherein: The inner bottom surface of the outer shell (1) is fixedly connected to a reaction chamber (8), and an exhaust hole (9) is provided on the surface of the reaction chamber (8). A cover plate (12) is fixedly installed on the rear side of the outer shell (1).

7. The filter screen self-cleaning device of claim 1, wherein: The backwash groove (11) is installed directly behind the filter screen (2).

Images