A detachable front air purification device

Abstract

The utility model relates to air filter field, concretely relates to a detachable front air purification device, it includes filter box, the box wall of filter box is opened with air outlet hole and air inlet hole, air outlet hole and air inlet hole are located on two opposite box walls respectively, filter box inserts and is equipped with filter box, filter box is equipped with the filter cotton for filtering air, filter box is equipped with a plurality of, a plurality of filter boxes all are located on the travel path of air in filter box, air outlet hole is equipped with the gas pipe of intercommunication equipment box, equipment box is equipped with at least one air blower, air blower is air suspension air blower. The detachable front air purification device has long path, high contact area's filter channel, has guaranteed the full contact of air and filter cotton, can remove dust and particulate pollutant in air in concentration, especially suitable for dust particulate pollutant is heavy industrial environment, can effectively promote the reliability, durability and economy of complete equipment system.

Description

Technical Field

[0001] This utility model relates to the field of air filtration, specifically to a detachable pre-filter air purification device. Background Technology

[0002] In the industrial production field, blowers are widely used to transport air, provide airflow, or cool equipment. Compared with traditional blowers, air-suspended blowers can significantly reduce operating energy consumption due to the absence of mechanical friction. Especially when dealing with high-power air demand, multiple air-suspended blowers need to be operated in parallel to supply air. However, compared with traditional blowers, air-suspended blowers have higher requirements for the quality of the intake air.

[0003] In harsh working environments with high concentrations of air pollutants such as dust and particulate matter, unfiltered air intake can cause rapid buildup of dirt and abnormal wear inside the blower, leading to performance degradation, frequent malfunctions, and a significantly shortened lifespan. To address these issues, traditional air-bearing blowers are equipped with independent intake filters. These filters typically operate independently, have short filtration paths, limited single-pass filtration efficiency, and require frequent maintenance and filter media replacement. Furthermore, managing multiple air-bearing blowers in parallel is inconvenient and requires improvement. Utility Model Content

[0004] The purpose of this invention is to provide a detachable pre-filter air purifier to address the above problems, thereby solving the issues of short air filtration paths and inconvenient unified management of filter media maintenance in the prior art.

[0005] To achieve the above objectives, this utility model discloses a detachable pre-filter air purification device, including a filter box. Its structural features are as follows: the filter box wall has an air outlet and an air inlet, located on two opposite walls; a filter box is inserted into the filter box, containing filter cotton for filtering air; multiple filter boxes are provided, all located along the air path within the filter box; an air supply pipe connecting to a device housing is installed on the air outlet; and at least one blower is installed in the device housing.

[0006] When the blower is running, negative pressure is generated inside the equipment housing. Outside air enters the filter box through the air inlet and passes through all the filter cartridges in sequence, forming a long and effective filtration channel. This ensures full contact between the air and the filter material, improving single-pass filtration efficiency. It effectively removes dust, particulate matter, and other pollutants from the air, significantly reducing wear, buildup, and failure rate of the blower inside the equipment housing, extending the service life of the main equipment. The blowers are installed in a closed equipment housing and output airflow through their own independent pipes. The blowers do not require separate air filtration systems, simplifying the maintenance and replacement of filter cotton. In environments with heavy dust and particulate pollution, the equipment housing provides a clean and stable working environment for the blowers.

[0007] The filter box comprises a rectangular frame formed by multiple profiles. Filter cotton is installed within the rectangular frame, and baffles are installed on both the front and rear sides of the rectangular frame to block the filter cotton. The front and rear baffles firmly press the filter cotton into the frame, preventing it from shifting, loosening, or developing gaps under airflow impact, thus ensuring the effectiveness and reliability of filtration.

[0008] The filter box is equipped with a handle for pushing and pulling the filter box, located on the outside of the filter housing. This allows operators to easily and effortlessly insert or remove the filter box from the filter housing, greatly improving the convenience of maintenance operations.

[0009] A control cavity is provided in the profiles located on the upper and lower sides. The control cavity extends laterally and is equipped with a limit seat. A limit block that can slide up and down is installed in the limit seat. A top spring for pushing the limit block to slide and protrude out of the control cavity is installed in the limit seat. A limit hole corresponding to the position of the limit block is opened on the filter box. The limit block extends into the limit hole. A control groove is opened on the limit block. An inclined plate is provided in the control groove. A push rod is slidably installed in the limit seat. The push rod extends laterally. One end of the push rod presses against the inclined plate. When the push rod slides toward the limit block, it compresses the limit block downward into the limit seat. The mating surface between the push rod and the inclined plate is an inclined surface that can fit together. The other end of the push rod protrudes out of the limit seat. A control mechanism for pushing the push rod is installed on the filter box. Once the filter box is installed in the filter housing, the limiting block automatically pops out and engages with the limiting hole on the filter housing under the action of the top spring, thus firmly locking the filter box in the working position and preventing it from accidentally coming loose under the vibration of the equipment or the impact of airflow, ensuring the reliability and safety of the connection.

[0010] The control mechanism includes a push-button switch slidably mounted on the handle. A control cavity, extending vertically, is located within the profile connected to the handle. A balance bar for pushing the push rod is installed within this cavity. A connecting rod is slidably mounted in the handle, with one end connected to the push-button switch and the other end connected to the balance bar. A return spring for pushing the balance bar towards the handle is installed within the control cavity. The push rod is connected to the balance bar. When the button is pressed, it pushes the balance bar, which in turn pushes the push rod. The push rod presses against the inclined plate, and the sliding engagement of the inclined surfaces compresses and retracts the limit block, easily releasing the lock and facilitating the removal of the filter box.

[0011] The end of the limiting block protruding from the profile has a guide surface, which is beveled and located on the side away from the handle. The upper edge of the limiting block away from the handle has a chamfer. Further widening the chamfer creates the guide surface. When the filter box is inserted into the filter housing, the guide surface at the front of the limiting block retracts under pressure. Once aligned with the limiting hole, the top spring automatically pushes it into the hole to lock it in place, achieving an insert-and-lock function without additional manual operation, making it convenient to use.

[0012] The filter box is equipped with a positioning seat for positioning the filter boxes. The positioning seat includes two positioning plates spaced apart and arranged vertically. The filter boxes are inserted between the two positioning plates. The positioning plates provide a clear track and limit the movement of the filter boxes, restricting their lateral movement within the box. This ensures that each filter box can be quickly and accurately aligned and reach its predetermined working position, preventing skewness or misalignment.

[0013] The filter box has limiting seats on both the top and bottom sides, with the two limiting seats spaced apart vertically. The two filter boxes work together to constrain the filter box from both directions, providing better vertical stability and preventing the filter box from swaying or tilting in the airflow, resulting in a more reliable fixation.

[0014] The blower is an air-suspended blower. Air-suspended blowers have no mechanical friction, and their efficiency is much higher than that of traditional blowers, significantly reducing operating energy consumption.

[0015] In summary, the beneficial effects of this utility model are as follows: air passes through all filter boxes sequentially within the filter box, forming a long-path, high-contact-area filtration channel. This ensures full contact between the air and the filter material, effectively removing dust and particulate pollutants from the air. The filtered clean air is directly supplied to the blower inside the equipment box through the air supply pipe, significantly reducing blower fouling and failure rates. The filter boxes are easy to install and the filter cotton is easy to replace. It is particularly suitable for industrial environments with heavy dust and particulate pollutants, effectively improving the reliability, durability, and economy of the entire equipment system. Attached Figure Description

[0016] Figure 1 This is a schematic diagram of the connection structure between the filter box and the equipment box. Figure 2 This is a cross-sectional view of the filter box. Figure 3 for Figure 2 A magnified view of the local structure at point A; Figure 4 for Figure 2 A magnified schematic diagram of the local structure at point B; Figure 5 for Figure 2 A magnified view of the structure at point C in the middle; Figure 6 This is a schematic diagram of the layout structure of the positioning plate; Figure 7 This is a schematic diagram of the arrangement of the limiting holes.

[0017] In the diagram: 1. Equipment box; 2. Blower; 3. Air pipe; 4. Filter box; 5. Filter cotton; 6. Air outlet; 7. Air inlet; 8. Handle; 9. Button switch; 10. Profile; 11. Baffle; 12. Balance bar; 13. Return spring; 14. Connecting rod; 15. Control cavity; 16. Limit seat; 17. Limit block; 18. Top spring; 19. Inclined plate; 20. Push rod; 21. Limit hole; 22. Guide surface; 23. Positioning plate; 24. Control groove; 25. Detailed Implementation

[0018] The specific embodiments of this utility model will be described in further detail below with reference to the accompanying drawings and examples. The following examples are used to illustrate this utility model, but are not intended to limit its scope.

[0019] The following is a description of preferred embodiments of the present invention in conjunction with the accompanying drawings.

[0020] A detachable pre-filter air purifier includes a filter box 4. The filter box 4 has an air outlet 7 and an air inlet 8 on its wall, located on two opposite walls. A filter cartridge 5 is inserted into the filter box 4, containing filter cotton 6 for filtering air. Multiple filter cartridges 5 are provided, all located along the air path within the filter box 4. An air supply pipe 3 connecting to a device housing 1 is installed on the air outlet 7. At least one blower 2 is installed in the device housing 1. (See attached diagram.) Figure 1When blower 2 is running, negative pressure is generated inside equipment box 1. External air enters filter box 4 through the air inlet and passes through all filter boxes 5 in sequence, forming a long and effective filtration channel. This ensures full contact between the air and the filter material, improving the single-pass filtration efficiency. It effectively removes dust, particulate matter, and other pollutants from the air, significantly reducing wear, buildup, and failure rate of blower 2 inside equipment box 1, and extending the service life of the main equipment. Blower 2 is installed in the enclosed equipment box 1 and outputs airflow through its own independent pipes. Blower 2 does not require an independent air filtration mechanism, simplifying the maintenance and replacement process of filter cotton 6. In environments with heavy dust and particulate pollution, equipment box 1 provides a clean and stable working environment for blower 2.

[0021] See attached document Figure 2 The filter box 5 includes a rectangular frame formed by multiple profiles 11. Filter cotton 6 is installed within the rectangular frame. Baffles 12 are installed on both the front and rear sides of the rectangular frame to block the filter cotton 6. The front and rear baffles 12 firmly press the filter cotton 6 within the frame, preventing it from shifting, loosening, or developing gaps under airflow impact, thus ensuring the effectiveness and reliability of filtration. A handle 9 for pushing and pulling the filter box 5 is installed on the outside of the filter housing 4. This allows operators to easily and effortlessly insert or remove the filter box 5 from the filter housing 4, greatly improving the convenience of maintenance operations. A control cavity 16 is provided in the profile 11 located on the upper and lower sides. The control cavity 16 extends laterally and a limit seat 17 is installed in the control cavity 16. A limit block 18 that can slide up and down is installed in the limit seat 17. A top spring 19 for pushing the limit block 18 to slide and protrude out of the control cavity 16 is installed in the limit seat 17. A limit hole 22 corresponding to the position of the limit block 18 is opened on the filter box 5. The limit block 18 extends into the limit hole 22. A control groove 25 is opened on the limit block 18. The control slot 25 is equipped with an inclined plate 20. A push rod 21 is slidably installed in the limiting seat 17. The push rod 21 extends laterally, with one end pressing against the inclined plate 20. When the push rod 21 slides toward the limiting block 18, it compresses the limiting block 18 downward into the limiting seat 17. The mating surfaces of the push rod 21 and the inclined plate 20 are inclined surfaces that can fit together. The other end of the push rod 21 protrudes from the limiting seat 17. A control mechanism for pushing the push rod 21 is installed on the filter box 5. After the filter box 5 is installed in the filter housing 4, the limiting block 18 automatically pops out and locks into the limiting hole 22 on the filter housing 4 under the action of the top spring 19, thereby firmly locking the filter box 5 in the working position and preventing it from accidentally loosening under equipment vibration or airflow impact, ensuring the reliability and safety of the connection.

[0022] See attached document Figure 4 Appendix Figure 5The control mechanism includes a push-button switch 10, which is slidably mounted on a handle 9. A control cavity 16 is provided in a profile 11 connected to the handle 9, extending vertically. A balance rod 13 for pushing the push rod 21 is installed in the control cavity 16. A connecting rod 15 is slidably mounted in the handle 9, with one end connected to the push-button switch 10 and the other end connected to the balance rod 13. A return spring 14 for pushing the balance rod 13 towards the handle 9 is installed in the control cavity 16. The push rod 21 is connected to the balance rod 13. When the button is pressed, it pushes the balance rod 13, which in turn pushes the push rod 21. The push rod 21 presses against the inclined plate 20. Simultaneously, the inclined surfaces slide against each other, compressing and retracting the limit block 18, easily releasing the lock and facilitating the removal of the filter box 5.

[0023] See attached document Figure 3 The limiting block 18 has a guide surface 23 at one end protruding from the profile 11. The guide surface 23 is inclined and located on the side away from the handle 9. The upper edge of the limiting block 18 away from the handle 9 has a chamfer. By further increasing the chamfer distance, the guide surface 23 can be formed. When the filter box 5 is inserted into the filter box 4, the guide surface 23 at the front end of the limiting block 18 will retract under pressure. Once aligned with the limiting hole 22, the top spring 19 will automatically push it into the hole to complete the locking, realizing the function of locking upon insertion. No additional manual operation is required, making the operation convenient.

[0024] See attached document Figure 6 The filter box 4 is equipped with a limiting seat 17 for positioning the filter box 5. The limiting seat 17 includes two positioning plates 24, which are spaced apart and vertically arranged. The filter box 5 is inserted between the two positioning plates 24. The positioning plates 24 provide a clear track and limit for the filter box 5, restricting the lateral movement of the filter box 5 in the box, ensuring that each filter box 5 can be quickly and accurately aligned and reach the predetermined working position, preventing skew or misalignment. The filter box 5 is provided with limiting seats 17 on both the upper and lower sides, with the two limiting seats 17 spaced apart vertically. The two filter boxes 5 work together to constrain the filter box 5 from both vertical and horizontal directions, providing better vertical stability and preventing the filter box 5 from swaying or tilting in the airflow, making the fixing effect more reliable. The blower 2 is an air-suspended blower 2. The air-suspended blower 2 has no mechanical friction, and its efficiency is much higher than that of the traditional blower 2, significantly reducing operating energy consumption.

[0025] The above description is only a preferred embodiment of the present utility model. It should be noted that for those skilled in the art, several improvements and substitutions can be made without departing from the technical principles of the present utility model, and these improvements and substitutions should also be considered within the protection scope of the present utility model.

Claims

1. A detachable pre-filter air purifier, comprising a filter box (4), characterized in that, The filter box (4) has an air outlet (7) and an air inlet (8) on its wall. The air outlet (7) and the air inlet (8) are located on two opposite walls. A filter box (5) is inserted in the filter box (4). Filter cotton (6) for filtering air is installed in the filter box (5). There are multiple filter boxes (5). All filter boxes (5) are located on the air travel path in the filter box (4). An air supply pipe (3) connecting the air outlet (7) to the equipment box (1) is installed. At least one blower (2) is installed in the equipment box (1). The filter box (5) includes a rectangular frame formed by multiple profiles (11), and filter cotton (6) is installed in the rectangular frame. Baffles (12) for blocking the filter cotton (6) are installed on both the front and rear sides of the rectangular frame. A handle (9) for pushing and pulling the filter box (5) is installed on the filter box (5), and the handle (9) is located on the outside of the filter box (4); A control cavity (16) is provided in the profile (11) located on the upper and lower sides. The control cavity (16) extends laterally. A limit seat (17) is installed in the control cavity (16). A limit block (18) that can slide up and down is installed in the limit seat (17). A top spring (19) for pushing the limit block (18) to slide and protrude out of the control cavity (16) is installed in the limit seat (17). A limit hole (22) corresponding to the position of the limit block (18) is opened on the filter box (5). The limit block (18) extends into the limit hole (22). A control groove (25) is opened on the limit block (18). The control slot (25) is provided with an inclined plate (20), and a push rod (21) is slidably installed in the limiting seat (17). The push rod (21) extends laterally, and one end of the push rod (21) presses against the inclined plate (20). When the push rod (21) slides toward the limiting block (18), it compresses the limiting block (18) downward into the limiting seat (17). The mating surface of the push rod (21) and the inclined plate (20) is an inclined surface that can fit together. The other end of the push rod (21) protrudes out of the limiting seat (17). The filter box (5) is equipped with a control mechanism for pushing the push rod (21).

2. The detachable pre-filter air purifier as described in claim 1, characterized in that, The control mechanism includes a push button switch (10), which is slidably mounted on the handle (9). A control cavity (16) is provided in the profile (11) connected to the handle (9). The control cavity (16) extends vertically and is equipped with a balance bar (13) for pushing the push rod (21). A connecting rod (15) is slidably mounted in the handle (9). One end of the connecting rod (15) is connected to the push button switch (10), and the other end of the connecting rod (15) is connected to the balance bar (13). A return spring (14) for pushing the balance bar (13) toward the handle (9) is installed in the control cavity (16). The push rod (21) is connected to the balance bar (13).

3. The detachable pre-filter air purifier as described in claim 1, characterized in that, The limiting block (18) has a guide surface (23) at one end protruding from the profile (11). The guide surface (23) is an inclined surface and is located on the side away from the handle (9).

4. The detachable pre-filter air purifier as described in claim 1, characterized in that, The filter box (4) is equipped with a positioning seat for positioning the filter box (5). The positioning seat includes a positioning plate (24). There are two positioning plates (24) spaced apart. The positioning plates (24) are vertically arranged. The filter box (5) is inserted between the two positioning plates (24).

5. The detachable pre-filter air purifier as described in claim 4, characterized in that, The filter box (5) is provided with limiting seats on both the upper and lower sides, and the two limiting seats are spaced apart vertically.

6. The detachable pre-filter air purifier as described in any one of claims 1 to 5, characterized in that, The blower (2) is an air suspension blower.

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