Air filtering device convenient to replace

Abstract

The utility model relates to the technical field of industrial oxygen production, in particular to an air filtering device convenient to replace, which comprises an output pipe, a plurality of input pipes, a connecting structure and a filtering mechanism, the input pipes are uniformly arranged in a horizontal and vertical manner, and all the input pipes are communicated with one another to form a shape of a grid shaped like a Chinese character'tian '; a connecting structure is arranged on a connecting point where the input pipes are crossed and communicated, the connecting structure comprises a connecting pipe and a spring, the upper end of the connecting pipe is fixedly connected with the input pipes, the spring is installed in the connecting pipe, two inverted-J-shaped return grooves are symmetrically formed in the side face of the lower end of the connecting pipe, and the two inverted-J-shaped return grooves are symmetrically arranged on the connecting pipe. A filtering structure is arranged on each connecting pipe, the connecting ends of the filtering structures are fixed to the connecting pipes in a limited mode through J-shaped return grooves, and the filtering structures can achieve large-flux air filtering input and meanwhile facilitate later replacement and cleaning.

Description

Technical Field

[0001] This utility model relates to the field of industrial oxygen production technology, specifically to an air filter device that is easy to replace. Background Technology

[0002] Industrial oxygen production utilizes air separation to produce large quantities of oxygen. Raw materials are widely available, and the use of physical properties reduces production costs. To improve conversion efficiency, industrial oxygen production equipment is typically placed in high mountains or areas with extensive forest cover. Air collection devices connected to the equipment are piped to areas with higher oxygen content deep in the mountains. However, industrial oxygen production equipment requires a large airflow rate. Current air filtration devices have reduced efficiency per second. Increasing the airflow rate necessitates reducing filtration efficiency. Furthermore, in mountainous environments, air filters require cleaning and replacement after a period of use to maintain filtration efficiency and effectiveness. Utility Model Content

[0003] In view of the shortcomings of the existing technology, the purpose of this utility model is to provide an air filter device that is easy to replace.

[0004] To achieve the above objectives, this utility model provides the following technical solution: an easily replaceable air filter device, comprising an output pipe, an input pipe, a connecting structure, and a filter mechanism. Multiple input pipes are evenly arranged in a horizontal and vertical configuration, and all input pipes are interconnected to form a grid pattern. A connecting structure is provided at each intersection point of the input pipes. The connecting structure includes a connecting pipe and a spring. The upper end of the connecting pipe is fixedly connected to the input pipe and communicates with the inside of the input pipe. The spring is installed inside the connecting pipe, located at the end of the connecting pipe closest to the input pipe, with its upper end abutting against the outer wall of the input pipe. An inverted J-shaped groove is provided on the lower side of the connecting pipe, and two inverted J-shaped grooves are symmetrically arranged on the connecting pipe. Each connecting pipe is provided with a filter structure. The connecting end of the filter mechanism is fixed to the connecting pipe by the J-shaped groove.

[0005] In some embodiments, the filtration mechanism includes an air inlet pipe, a filter sponge, and a non-woven fabric filter screen. The upper end of the air inlet pipe is provided with a sealing rubber ring, and the upper end of the air inlet pipe is placed inside the connecting pipe and sealed to the side wall of the connecting pipe by the sealing rubber ring. The lower end of the air inlet pipe is set as a closed configuration. The upper end of the air inlet pipe is provided with a matching limiting protrusion corresponding to the inverted J-shaped return groove. Air inlet holes are evenly distributed around the side of the air inlet pipe. The filter sponge covers the side of the air inlet pipe and covers all the air inlet holes. The non-woven fabric filter screen is located outside the filter sponge and completely covers the filter sponge.

[0006] In some embodiments, limiting plates are respectively provided on the upper and lower ends of the air intake pipe, and the filter sponge and non-woven filter screen are located between the two limiting plates.

[0007] In some embodiments, the limiting plate at the lower end of the air intake pipe is threadedly fixed to the air intake pipe.

[0008] In some embodiments, a plug is provided at the lower end opening of the air intake pipe for threaded sealing.

[0009] Compared with the prior art, the beneficial effects of this utility model are: by setting up a grid-like input pipe structure and setting a filter mechanism at each node, all filter mechanisms are interconnected and all filter mechanisms perform air filtration simultaneously, increasing the airflow of filtered air output through the output pipe; and when the filtration efficiency of some filter mechanisms decreases, the interconnection between the output pipe and the input pipe allows other normal filters to continue to filter and input air.

[0010] Details of one or more embodiments of this application are set forth in the following drawings and description to make other features, objects and advantages of this application more readily apparent. The embodiments of this application will provide a detailed description and understanding of the application. Attached Figure Description

[0011] Figure 1 This is a schematic diagram of the structure of this utility model;

[0012] Figure 2 This is a bottom view of the input tube and connecting structure of this utility model.

[0013] Figure 3 This is a cross-sectional view of the input pipe connection of this utility model;

[0014] Figure 4 This is a cross-sectional view of the present invention;

[0015] Figure 5 This is a schematic diagram of the connection structure of this utility model;

[0016] Figure 6 This is a schematic diagram of the connection structure of this utility model and its cooperation with the air intake pipe;

[0017] Figure 7 This is a cross-sectional view of the air intake pipe of this utility model.

[0018] In the diagram: 1. Output pipe; 2. Input pipe; 3. Connection structure; 4. Filtering mechanism; 5. Connecting pipe; 6. Spring; 7. Inverted J-shaped return groove; 8. Air inlet pipe; 9. Filter sponge; 10. Non-woven filter screen; 11. Limiting protrusion; 12. Limiting plate; 13. Plug; 14. Sealing rubber ring; 15. Air inlet. Detailed Implementation

[0019] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0020] Please see Figure 1-7 This utility model provides a technical solution: an easily replaceable air filter device, including an output pipe, an input pipe, a connecting structure, and a filter mechanism. Multiple input pipes (using square tubes) are evenly arranged horizontally and vertically, forming a grid pattern. A connecting structure is provided at each intersection point of the input pipes. The connecting structure includes a connecting pipe and a spring. The upper end of the connecting pipe is fixedly connected to and communicates with the inside of the input pipe. The spring is installed inside the connecting pipe, located at the end closest to the input pipe, with its upper end abutting against the outer wall of the input pipe. An inverted J-shaped groove is provided on the lower side of the connecting pipe, with two symmetrically arranged inverted J-shaped grooves. Each connecting pipe has a filter structure. The connecting end of the filter mechanism is fixed to the connecting pipe by the J-shaped groove.

[0021] The input pipe structure is designed in a grid pattern, with a filter mechanism at each node. This allows all the filters to be interconnected and perform air filtration simultaneously, increasing the airflow rate after filtration at the output pipe. Furthermore, even if the filtration efficiency of some filters decreases, the interconnection between the output and input pipes ensures that other filters can continue to filter and input air.

[0022] The filtration mechanism includes an air inlet pipe, a filter sponge, and a non-woven fabric filter screen. The upper end of the air inlet pipe is provided with a sealing rubber ring, and the upper end of the air inlet pipe is placed inside the connecting pipe and sealed to the side wall of the connecting pipe by the sealing rubber ring. The lower end of the air inlet pipe is set as a closed configuration. The upper end of the air inlet pipe is provided with a matching limiting protrusion corresponding to the inverted J-shaped return groove. Air inlet holes are evenly distributed around the side of the air inlet pipe. The filter sponge covers the side of the air inlet pipe and covers all the air inlet holes. The non-woven fabric filter screen is located outside the filter sponge and completely covers the filter sponge.

[0023] To improve the air intake efficiency of each intake pipe, multiple air intake holes are densely arranged on the side of the intake pipe to increase the air intake volume. At the same time, the use of filter sponge and non-woven fabric filter screen can seal and filter all air intake holes to ensure consistent air filtration quality.

[0024] Limiting plates are respectively provided on the upper and lower ends of the air intake pipe, and the filter sponge and non-woven fabric filter screen are located between the two limiting plates.

[0025] The use of two limiting plates prevents the filter sponge and non-woven fabric filter from falling off the air intake pipe after prolonged use.

[0026] The limiting plate at the lower end of the air intake pipe is fixedly connected to the air intake pipe by a thread. The limiting plate at one end is detachable, which facilitates the disassembly and replacement of the filter sponge and non-woven filter screen.

[0027] The lower end opening of the air intake pipe is sealed with a plug.

[0028] By using a plug, the lower end of the air inlet is sealed when the filter is in normal use; when it is necessary to clean the air inlet pipe, the plug is removed, making it easy for the cleaning device to reach into the air inlet pipe for cleaning.

[0029] The above embodiments merely illustrate several implementation methods of this application, and while the descriptions are relatively specific and detailed, they should not be construed as limiting the scope of the invention patent. It should be noted that those skilled in the art can make various modifications and improvements without departing from the concept of this application, and these all fall within the protection scope of this application. Therefore, the protection scope of this patent application should be determined by the appended claims.

[0030] Although embodiments of the invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. An easily replaceable air filter device, characterized in that: The device includes an output tube, an input tube, a connecting structure, and a filtering mechanism. Multiple input tubes are evenly arranged horizontally and vertically, forming a grid pattern. Each input tube has a connecting structure at its intersection point. The connecting structure includes a connecting tube and a spring. The upper end of the connecting tube is fixedly connected to and communicates with the inside of the input tube. The spring is installed inside the connecting tube, located near the input tube, with its upper end abutting against the outer wall of the input tube. Two inverted J-shaped return grooves are symmetrically arranged on the lower side of the connecting tube. Each connecting tube has a filtering structure. The connecting end of the filtering mechanism is fixed to the connecting tube by the J-shaped return grooves.

2. The easily replaceable air filter device according to claim 1, characterized in that: The filtration mechanism includes an air inlet pipe, a filter sponge, and a non-woven fabric filter screen. The upper end of the air inlet pipe is provided with a sealing rubber ring, and the upper end of the air inlet pipe is placed inside the connecting pipe and sealed to the side wall of the connecting pipe by the sealing rubber ring. The lower end of the air inlet pipe is set as a closed configuration. The upper end of the air inlet pipe is provided with a matching limiting protrusion corresponding to the inverted J-shaped return groove. Air inlet holes are evenly distributed around the side of the air inlet pipe. The filter sponge covers the side of the air inlet pipe and covers all the air inlet holes. The non-woven fabric filter screen is located outside the filter sponge and completely covers the filter sponge.

3. The easily replaceable air filter device according to claim 2, characterized in that: Limiting plates are respectively provided on the upper and lower ends of the air intake pipe, and the filter sponge and non-woven fabric filter screen are located between the two limiting plates.

4. The easily replaceable air filter device according to claim 3, characterized in that: The limiting plate at the lower end of the air intake pipe is fixedly connected to the air intake pipe by a thread.

5. The easily replaceable air filter device according to claim 2, characterized in that: The lower end opening of the air intake pipe is sealed with a plug.

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