Box-type air filter

Abstract

The utility model relates to a box-type air filter, which comprises a filter shell with a hollow structure inside, the front sealing cover is detachably mounted on the front end surface of the filter shell, and an air inlet is formed in the middle of the front sealing cover; the mounting box is inserted into the filter shell; the air collecting block is fixed on the inner wall of the middle part of the filter shell; the power mechanism mounting table is fixed on the inner wall of the filter shell and is positioned behind the air collecting block; the fan is mounted on the mounting opening of the power mechanism mounting table; the rear sealing cover is detachably mounted on the rear end face of the filter shell, and an air outlet is formed in the middle of the rear sealing cover; the front sealing cover, the mounting box, the fan and the rear sealing cover are all detachably mounted, the modular design enables maintenance and component replacement of the filter to be more convenient and faster, when a certain component breaks down or needs to be replaced, the whole filter does not need to be dismounted, only the corresponding component needs to be replaced independently, and the maintenance cost and time are greatly reduced.

Description

Technical Field

[0001] This utility model relates to the field of air filter technology, specifically a box-type air filter. Background Technology

[0002] Traditional air filters typically use a fixed filter structure, which has problems such as low filtration efficiency and inconvenient maintenance. Especially in applications where frequent filter replacement is required, the disassembly and installation process of existing filters is often cumbersome, affecting efficiency. In addition, most air filters have uneven airflow distribution, which can easily lead to excessive local filtration load and shorten the lifespan of the filter.

[0003] While box-type air filters currently on the market have improved filtration efficiency to some extent, they still have the following shortcomings in their structural design:

[0004] (1) The filter screen is inconvenient to replace, and usually requires disassembling the entire filter housing;

[0005] (2) Unreasonable airflow organization can easily form vortices or local high-speed airflow, reducing filtration efficiency;

[0006] (3) Poor matching between the fan and the filter screen leads to high energy consumption or insufficient air volume;

[0007] To address these issues, there is an urgent need for a new type of box-type air filter that can enable quick filter replacement, optimize airflow distribution, and improve overall filtration efficiency, thereby meeting the air purification needs of different environments. Utility Model Content

[0008] The technical problem to be solved by this utility model is to provide a box-type air filter that is easy to install and disassemble and has a good airflow guiding effect, in order to address the shortcomings of the existing technology.

[0009] The technical problem to be solved by this utility model is achieved through the following technical solution: a box-type air filter, which includes a filter shell with an internal hollow structure, arranged sequentially in the direction of airflow in and out.

[0010] The front cover is detachably mounted on the front face of the filter housing, with an air inlet in the middle.

[0011] The mounting box is inserted into the filter housing. The inner wall of the air inlet of the front cover forms a blocking contact surface that abuts against the side wall of the end of the mounting box, thereby preventing the mounting box from falling out of the filter housing. Several filter slots for inserting filter screens are provided on the top of the mounting box.

[0012] An air collecting block is fixed on the inner wall of the middle part of the filter housing. An air guide port is opened in the middle of the air collecting block, and an air guide slope is opened on the side edge of the air guide port facing the mounting box.

[0013] The power mechanism mounting platform is fixed to the inner wall of the filter housing and located at the rear of the air collection block. An installation port is provided in the middle of the power mechanism mounting platform.

[0014] The fan is detachably mounted on the mounting port of the power mechanism mounting platform;

[0015] The rear cover is detachably mounted on the rear end face of the filter housing, with an air outlet in the middle.

[0016] The technical problem to be solved by this utility model can also be achieved through the following technical solution: the box-type air filter described above has guide rails fixedly installed horizontally on the outer walls of the top, middle and bottom of the mounting box, and guide grooves that can slide with the guide rails are fixedly installed on the inner wall of the filter housing. The guide grooves are located between the air collecting block and the front cover.

[0017] The technical problem to be solved by this utility model can also be achieved through the following technical solution: the box-type air filter described above has a cross-section of the filter housing in the shape of an annulus, and the inner circumferential surfaces of the front and rear covers are threadedly connected to the outer circumferential surfaces of the front and rear ends of the filter housing.

[0018] The technical problem to be solved by this utility model can also be achieved through the following technical solution: the box-type air filter described above has four filter slots, and the spacing between two adjacent filter slots is the same.

[0019] The technical problem to be solved by this utility model can also be achieved through the following technical solution: In the box-type air filter described above, several bolt holes are provided on the power mechanism mounting platform, the fan is bolted to the mounting port of the power mechanism mounting platform, the air inlet end of the fan is covered in front, and the air outlet end of the fan is covered in the rear.

[0020] The technical problem to be solved by this utility model can also be achieved through the following technical solution: In the box-type air filter described above, the inner diameter of the air guide port of the air collecting block is equal to the inner diameter of the mounting port of the power mechanism mounting platform.

[0021] Compared with the prior art, the beneficial technical effects of this utility model are:

[0022] (1) The front cover, mounting box, fan and rear cover can all be disassembled and installed. This modular design makes the maintenance and replacement of the filter more convenient and quick. When a component fails or needs to be replaced, there is no need to disassemble the entire filter. Only the corresponding component needs to be replaced, which greatly reduces maintenance costs and time.

[0023] (2) The mounting box can be inserted into the filter housing, and the inner wall of the air inlet of the front cover forms a blocking contact surface to prevent the mounting box from falling out. This design not only ensures the stability of the mounting box, but also facilitates its insertion and removal operation. In addition, multiple filter slots are opened on the top of the mounting box, and multiple filters can be inserted to achieve multi-stage filtration of air, effectively improving the filtration effect and removing dust, particulate matter and other impurities in the air.

[0024] (3) The air collection block is fixed on the inner wall of the middle part of the filter housing. Its air guide and air guide slope design can guide the airflow smoothly into the fan, reduce airflow resistance, improve the air intake efficiency of the fan, and thus improve the air handling capacity of the entire filter.

[0025] (4) A guide rail is provided on the outer wall of the mounting box, and a guide groove is provided on the inner wall of the filter housing to slide with it. This matching structure of guide rail and guide groove not only facilitates the insertion and connection of the mounting box, but also ensures the stable position of the mounting box in the filter housing, preventing it from shaking or shifting under the action of airflow.

[0026] (5) Four filter slots are provided, and the spacing between two adjacent filter slots is the same. This layout makes the filter evenly distributed in the installation box, which can make full use of the space of the installation box, and at the same time ensure that each filter can play its filtering role and improve the filtration efficiency.

[0027] (6) Bolt holes are opened on the power mechanism mounting platform, and the fan is connected to the mounting port by bolts. This installation method is firm and reliable, and facilitates the installation and disassembly of the fan. Its structural design is reasonable. Attached Figure Description

[0028] Figure 1 This is a full sectional view of the structure of this utility model in its disassembled state before use;

[0029] Figure 2 This is a schematic diagram of the main structure when the present invention is in use.

[0030] Reference numerals in the attached drawings: 1. Filter housing; 2. Front cover; 3. Mounting box; 4. Blocking contact surface; 5. Filter screen slot; 6. Guide rail; 7. Guide groove; 8. Air collection block; 9. Air guide slope; 10. Power mechanism mounting platform; 11. Mounting port; 12. Fan; 13. Rear cover. Detailed Implementation

[0031] The specific technical solutions of this utility model are further described below with reference to the accompanying drawings, so as to enable those skilled in the art to further understand this utility model, without constituting a limitation on its rights.

[0032] Example 1, referring to Figure 1-2A box-type air filter includes a filter housing 1 with an internal hollow structure. The filter housing 1 is formed into a generally hollow cylindrical structure with a square opening in the middle. The inner circumferential surfaces of the front cover and the rear cover are threaded to the outer circumferential surfaces of the front and rear ends of the filter housing 1, and are arranged sequentially in the direction of airflow in and out.

[0033] The front cover 2 is formed into a roughly circular cover structure and is detachably installed on the front end face of the filter housing 1. An air inlet is provided in the middle of the cover, and the air inlet is a circular opening.

[0034] The mounting box 3 is formed into a roughly square shell structure with a square through hole in the middle, which is inserted into the filter housing 1. The inner wall of the air inlet of the front cover 2 forms a blocking contact surface 4 that abuts against the end side wall of the mounting box 3 to prevent the mounting box 3 from falling out of the filter housing 1. Several filter slots 5 are provided on the top of the mounting box 3 for inserting filter screens. The filter slots 5 are formed into square groove structures, and their width and depth can be selected according to the usage requirements. External filter screens can be embedded and installed in the filter slots 5. There are four filter slots 5, the number of which can be selected according to the usage requirements. The spacing between two adjacent filter slots 5 is the same. Guide rails 6 are fixed horizontally on the outer walls of the top, middle and bottom of the mounting box 3. Guide grooves 7 that can slide with the guide rails 6 are fixed on the inner wall of the filter housing 1. The guide rails 6 and guide grooves 7 are straight guide rails 6 and guide grooves 7, and their movement trajectory is a straight line. The guide grooves 7 are located between the air collecting block and the front cover 2. The purpose of the design of the guide rails 6 and guide grooves 7 is to facilitate the quick and accurate insertion of the mounting box into the filter housing 1.

[0035] The air collecting block 8 has a trapezoidal block structure in cross-section and is fixed on the inner wall of the middle part of the filter housing 1. An air guide is provided in the middle of the air collecting block 8. The air guide is a circular through hole. An air guide slope 9 is provided on the side edge of the air guide facing the mounting box 3. The air guide slope 9 forms an acute angle with the axis of the filter housing 1. The specific angle can be selected according to the usage requirements, for example, 65°~75°.

[0036] The power mechanism mounting platform 10 is formed into a roughly circular annular plate structure. It is fixed on the inner wall of the filter housing 1 and located at the rear of the air collecting block 8. An installation port 11 is provided in the middle of the power mechanism mounting platform 10. The installation port 11 is a circular through hole. The inner diameter of the air guide port of the air collecting block 8 is equal to the inner diameter of the installation port 11 of the power mechanism mounting platform 10.

[0037] The fan 12 has several bolt holes on the power mechanism mounting platform 10. The fan 12 is bolted to the mounting port 11 of the power mechanism mounting platform 10. The air inlet end of the fan 12 is covered with a front cover 2, and the air outlet end of the fan 12 faces the rear cover 13.

[0038] The rear cover 13 is formed into a roughly circular cover structure and is detachably installed on the rear end face of the filter housing 1. An air outlet is provided in the middle of the air outlet, which is a circular opening.

[0039] The working principle of the box-type air filter in Example 1 is as follows:

[0040] (1) Air intake: When air enters the filter from the external environment, it first passes through the air inlet in the middle of the front cover 2. The front cover 2 is detachably installed on the front end of the filter housing 1. Its air inlet serves as the only channel for air to enter the filter, which can initially restrict the direction of air entry and prepare for subsequent filtration. The mounting box 3 is inserted into the filter housing 1. The inner wall of the air inlet of the front cover 2 forms a blocking contact surface 4, which abuts against the side wall at the end of the mounting box 3, ensuring that the mounting box 3 is stable in the filter and will not fall out due to airflow, thus ensuring that air can smoothly enter the area of ​​the mounting box 3.

[0041] (2) Filtration process: The top of the installation box 3 has several filter slots 5. Users can insert different types or precision filters into these slots according to their actual filtration needs. Multiple filters form a multi-stage filtration structure, which can gradually remove dust, smoke and other impurities in the air. When the air enters the installation box 3, it will pass through each filter in sequence. The first-stage filter can intercept larger particles, such as dust and hair. As the air continues to flow, the subsequent filters can further filter smaller particles and harmful substances, thereby improving the purity of the air. The filtration precision can be selected according to the user's needs.

[0042] (3) Air guiding link: During filtration, the air collecting block 8 is fixed on the inner wall of the middle part of the filter housing 1. An air guide port is opened in the middle part. An air guiding slope 9 is opened on the side edge of the air guide port facing the mounting box 3. When the air passes through the filter screen, it will flow to the air collecting block 8. The design of the air guiding slope 9 can guide the airflow to converge smoothly to the air guide port, reduce the turbulence and resistance of the airflow in the filter, and enable more air to effectively enter the subsequent fan 12 area. The inner diameter of the air guide port is equal to the inner diameter of the mounting port 11 of the power mechanism mounting platform 10. This design ensures the consistency of the airflow channel, avoids the airflow pressure loss and turbulence caused by the change of the channel cross section, and ensures that the airflow can enter the fan 12 stably and efficiently.

[0043] (4) Air supply stage: The fan 12 is detachably installed on the mounting port 11 of the power mechanism mounting platform 10. The power mechanism mounting platform 10 is fixed on the inner wall of the filter housing 1 and located at the rear end of the air collection block 8. The fan 12 is connected to the mounting port 11 by bolts. The installation is firm and easy to disassemble and maintain. When the fan 12 is working, its air inlet faces the front cover 2 and its air outlet faces the rear cover 13. It can generate a strong suction force to draw the filtered air from the air guide port of the air collection block 8 and accelerate its delivery. Under the action of the fan 12, the air is continuously drawn into the fan 12 from the area of ​​the mounting box 3. The fan blades inside the fan 12 rotate to give the air kinetic energy and form an airflow with a certain pressure and flow rate, which prepares for the subsequent exhaust.

[0044] (5) Exhaust process: The air accelerated by the fan 12 is discharged from the filter through the air outlet in the middle of the rear cover 13 and enters the indoor environment or other spaces that need air purification. The rear cover 13 can be detachably installed on the rear end face of the filter housing 1, which facilitates the cleaning and maintenance of the filter interior and also ensures the sealing and stability of the air outlet. Through the continuous circulation of the above-mentioned air intake, filtration, air guiding, air supply and exhaust processes, the box-type air filter can continuously filter and purify the incoming air, providing a clean and healthy air environment for indoor or other enclosed spaces.

Claims

1. A box-type air filter, characterized in that: It includes a filter housing with an internal hollow structure, which is arranged sequentially in the direction of airflow in and out; The front cover is detachably mounted on the front face of the filter housing, with an air inlet in the middle. The mounting box is inserted into the filter housing. The inner wall of the air inlet of the front cover forms a blocking contact surface that abuts against the side wall of the end of the mounting box, thereby preventing the mounting box from falling out of the filter housing. Several filter slots for inserting filter screens are provided on the top of the mounting box. An air collecting block is fixed on the inner wall of the middle part of the filter housing. An air guide port is opened in the middle of the air collecting block, and an air guide slope is opened on the side edge of the air guide port facing the mounting box. The power mechanism mounting platform is fixed to the inner wall of the filter housing and located at the rear of the air collection block. An installation port is provided in the middle of the power mechanism mounting platform. The fan is detachably mounted on the mounting port of the power mechanism mounting platform; The rear cover is detachably mounted on the rear end face of the filter housing, with an air outlet in the middle.

2. A box-type air filter according to claim 1, characterized in that: Guide rails are horizontally fixed on the outer walls of the top, middle and bottom of the mounting box, and guide grooves that can slide with the guide rails are fixed on the inner wall of the filter housing. The guide grooves are located between the air collecting block and the front cover.

3. A box-type air filter according to claim 1, characterized in that: The filter housing has a circular cross-section, and the inner circumferential surfaces of the front and rear covers are threadedly connected to the outer circumferential surfaces of the front and rear ends of the filter housing.

4. A box-type air filter according to claim 1, characterized in that: The filter slots are provided with four slots, and the spacing between adjacent filter slots is the same.

5. A box-type air filter according to claim 1, characterized in that: The power mechanism mounting platform has several bolt holes. The fan is bolted to the mounting port of the power mechanism mounting platform. The air inlet end of the fan is covered in front, and the air outlet end of the fan is covered in the rear.

6. A box-type air filter according to claim 1, characterized in that: The inner diameter of the air guide port of the air collecting block is equal to the inner diameter of the mounting port of the power mechanism mounting platform.

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