Device for detecting filtering effect of purifier filter screen

Abstract

The utility model provides a purifier filter screen filtering effect detection device, belongs to the field of air purification equipment detection, and aims to solve the problems of poor universality and few detection types of a detection device. An air inlet is fixedly connected to the middle of the front side wall of the detection box body, an air outlet is fixedly connected to the middle of the rear side wall of the detection box body, a sealing top cover is hinged to the rear side of the top of the detection box body, a filter screen fixing frame is slidably inserted into the inner wall of the front side wall of the detection box body, and two sliding guide blocks are symmetrically connected to the left inner wall and the right inner wall of the detection box body in a sliding mode; a shear fork bracket is hinged to the sliding guide block; according to the device for detecting the filtering effect of the purifier filter screen, the cylindrical purifier filter screen is fixed on the inner extending pipe through the filter screen fixing frame, and the straight-plate-shaped purifier filter screen is fixed by being inserted between the sunken parts of the two opposite locking clamping blocks; the detection operation on the filtering effect of various types of purifier filter screens is realized, and the use universality of the device is further expanded.

Description

Technical Field

[0001] This utility model relates to the field of air purification equipment testing technology, and in particular to a device for testing the filtration effect of air purifier filters. Background Technology

[0002] As people pay increasing attention to air quality, air purifiers have been widely used in homes, offices, and other places. The filter in an air purifier is the core component, and its filtration effect directly affects the performance of the air purifier. Existing air purifier filter effect testing devices are limited by the types of air purifiers on the market and cannot be well applied to different types of air purifier filters. Therefore, it is necessary to use many auxiliary tools or multiple air purifier filter effect testing devices of different types to test the filter effect. Thus, the use of testing devices is limited, and it is usually inconvenient to add auxiliary materials to test the filter effect during air supply. Therefore, the testing function is relatively simple. Summary of the Invention

[0003] The purpose of this utility model is to provide a device for testing the filtration effect of air purifier filters, in order to solve the problems mentioned in the background art, which are limited by the types of air purifiers on the market, cannot be well applied to different types of air purifier filters, the use of the testing device is limited, and it is usually inconvenient to add some auxiliary materials to test the filtration effect of the filter during air supply, so the testing function is relatively simple.

[0004] The purpose and effectiveness of this air purifier filter effect testing device are achieved through the following specific technical means:

[0005] A device for testing the filtration effect of an air purifier filter includes a testing chamber; an air inlet is fixedly connected to the middle of the front side wall of the testing chamber, an air outlet is fixedly connected to the middle of the rear side wall of the testing chamber, a sealed top cover is hinged to the rear side of the top of the testing chamber, a filter fixing bracket is slidably inserted into the inner wall of the front side wall of the testing chamber, two sliding guide blocks are symmetrically connected to the left and right inner walls of the testing chamber, scissor brackets are hinged to the sliding guide blocks, sliding guide blocks are hinged to the four ends of the scissor brackets, and two sliding guide blocks on one side of the scissor brackets are slidably connected to the side wall of a locking clamp.

[0006] Furthermore, a connecting auxiliary material adding pipe is fixedly connected to the top of the air inlet, and an inclined guide plate is fixedly installed at the bottom of the auxiliary material adding pipe. A notch is left between the bottom of the rear side of the auxiliary material adding pipe and the guide plate, and a sealing cap is fastened to the top of the air inlet.

[0007] Furthermore, an inner extension pipe is fixedly connected to the middle of the front inner wall of the detection box. The inner extension pipe is connected to the air inlet. A conical guide cone is fixedly connected to the rear inner wall of the inner extension pipe. Three side openings are arranged in a ring array in the outer wall of the inner extension pipe. A connecting guide groove is opened at the rear end of the outer wall of the inner extension pipe between adjacent side openings. A guide groove is opened in the outer wall of the inner extension pipe behind the guide cone.

[0008] Furthermore, trapezoidal guide grooves are provided on the rear side of the left and right inner walls of the detection box, and two sliding guide blocks are symmetrically slidably connected in the guide grooves. An inner tube is provided in the air outlet on the rear side of the detection box, and a flow meter and a particle trap are fixedly connected to the upper and lower ends of the inner tube, respectively.

[0009] Furthermore, the locking clamps are arranged symmetrically in a concave shape, and sliding guide grooves are opened in the opposite side walls of the two locking clamps. The sliding guide blocks connected to both ends of one side of the scissor bracket are slidably connected in the sliding guide grooves. The upper and lower ends of the opposite side walls of the two locking clamps are fixedly connected to connecting columns, and support springs are sleeved on the connecting columns. The other end of the support springs is connected to the inner side wall of the detection box.

[0010] Furthermore, the filter screen fixing frame is sleeved on the outside of the inner extension tube of the detection box. Three connecting rods are fixedly connected in a ring array on the front side wall of the filter screen fixing frame. A connecting guide block is fixedly connected on the inner side wall at the connection between the connecting rod and the filter screen fixing frame. The connecting guide block is slidably connected in the connecting guide groove at the rear end of the outer side wall of the inner extension tube.

[0011] This utility model provides a device for detecting the filtration effect of an air purifier filter, which has the following beneficial effects:

[0012] 1. By fixing an inner extension tube in the middle of the front inner wall of the testing chamber, and with the assistance of a filter fixing bracket, a cylindrical air purifier filter is fixed on the inner extension tube to complete the filtration effect test. The filter fixing bracket is detachable, which can be better combined with different air purifier filters to provide adaptability to the device. By inserting the straight air purifier filter between two opposite locking clip recesses, the locking clips firmly fix the straight air purifier filter under the action of the support spring. The air outlet can be blocked by the straight air purifier filter to test the filtration effect of the straight air purifier filter. This enables the testing of the filtration effect of various types of air purifier filters, further expanding the applicability of the device.

[0013] 2. By fixing an auxiliary material adding pipe to the top of the air inlet, dust particles for testing are added to the air passing through the air inlet through the auxiliary material adding pipe. Under the action of the guide plate at the bottom of the auxiliary material adding pipe, a vortex zone is formed at the bottom rear side of the auxiliary material adding pipe, so that the dust particles are mixed into the air smoothly, thus providing a direct observation for testing the filtration effect of the air purifier filter. Attached Figure Description

[0014] Figure 1 This is a schematic diagram of the right front side axial view structure of this utility model;

[0015] Figure 2 This is a schematic diagram of the opening structure of the sealing top cover of this utility model;

[0016] Figure 3 This is a schematic diagram of the cross-sectional structure of the detection box of this utility model;

[0017] Figure 4 This is a schematic diagram of the overall disassembled structure of this utility model;

[0018] Figure 5 This is a schematic diagram of a half-section of the detection box of this utility model;

[0019] Figure 6 This is a cross-sectional view of the filter screen fixing bracket of this utility model.

[0020] In the diagram, the correspondence between component names and drawing numbers is as follows:

[0021] 1. Inspection box; 101. Air inlet; 10101. Auxiliary material addition pipe; 10102. Guide plate; 102. Air outlet; 10201. Inner tube; 103. Inner extension tube; 10301. Guide cone; 10302. Side opening; 10303. Connecting guide groove; 10304. Guide groove; 104. Guide slide groove; 2. Sealing top cover; 3. Sealing cover; 4. Filter screen fixing bracket; 401. Connecting rod; 402. Connecting guide block; 5. Locking clamp; 501. Sliding guide groove; 502. Connecting column; 6. Support spring; 7. Scissor bracket; 8. Sliding guide block; 9. Flow meter; 10. Particle trap. Detailed Implementation

[0022] The embodiments of this utility model will be described in further detail below with reference to the accompanying drawings and examples. Example

[0023] As attached Figure 1 To be continued Figure 6 As shown:

[0024] This utility model provides a device for testing the filtration effect of an air purifier filter, comprising: a testing chamber 1; an air inlet 101 fixedly connected to the middle of the front side wall of the testing chamber 1, an air outlet 102 fixedly connected to the middle of the rear side wall of the testing chamber 1, a sealing top cover 2 hinged to the rear top of the testing chamber 1, the right side of the sealing top cover 2 being fixed to the testing chamber 1 by a latch, a filter fixing bracket 4 slidably inserted into the inner wall of the front side wall of the testing chamber 1, two sliding guide blocks 8 symmetrically connected to the left and right inner walls of the testing chamber 1, a scissor bracket 7 hinged to the sliding guide block 8, and sliding guide blocks 8 hinged to the four ends of the scissor bracket 7, two sliding guide blocks 8 slidably connected to the side wall of the locking clamp 5 on one side of the scissor bracket 7, and a fixed top of the air inlet 101. The auxiliary material adding pipe 10101 is connected to the air inlet 101. An inclined guide plate 10102 is fixedly installed at the bottom of the auxiliary material adding pipe 10101. There is a gap between the bottom rear side of the auxiliary material adding pipe 10101 and the guide plate 10102. A sealing cap 3 is fastened to the top of the air inlet 101. Specifically, by fixing the auxiliary material adding pipe 10101 to the top of the air inlet 101, the auxiliary material adding pipe 10101 adds dust particles for testing to the air passing through the air inlet 101. Under the action of the guide plate 10102 at the bottom of the auxiliary material adding pipe 10101, a bay flow area is formed at the bottom rear side of the auxiliary material adding pipe 10101 to smoothly mix the dust particles into the air, thereby providing a direct observation for the filtration effect testing of the purifier filter.

[0025] An inner extension pipe 103 is fixedly connected to the middle of the front inner wall of the detection chamber 1. The inner extension pipe 103 is connected to the air inlet 101. A conical guide cone 10301 is fixedly connected to the rear inner wall of the inner extension pipe 103. Three side openings 10302 are arranged in a ring array on the outer wall of the inner extension pipe 103. A connecting guide groove 10303 is provided at the rear end of the outer wall of the inner extension pipe 103 between adjacent side openings 10302. A guide groove 10304 is provided in the outer wall of the inner extension pipe 103 behind the guide cone 10301. A filter fixing bracket 4 is sleeved on the outside of the inner extension pipe 103 of the detection chamber 1. Three connecting rods 401 are fixedly connected in a ring array on the front wall of the filter fixing bracket 4. The connecting rods 401 and the filter fixing bracket 4 are fixedly connected in a ring array. A connecting guide block 402 is fixedly connected to the inner wall of the connection point of the fixed frame 4. The connecting guide block 402 is slidably connected in the connecting guide groove 10303 at the rear end of the outer wall of the inner extension tube 103. Specifically, by fixing the inner extension tube 103 in the middle of the front inner wall of the test box 1, and with the assistance of the filter fixing frame 4, the cylindrical purifier filter is fixed on the inner extension tube 103 to complete the filtration effect test. The filter fixing frame 4 is detachable and can be better combined with different purifier filters to provide the adaptability of the device. The air guide cone 10301 on the rear inner wall of the inner extension tube 103 can better guide the air, so that the air blows directly from the side opening 10302 and the guide groove 10304 to the purifier filter.

[0026] The test chamber 1 has trapezoidal guide grooves 104 on the rear side of its left and right inner walls. Two sliding guide blocks 8 are symmetrically connected in the guide grooves 104. Two locking clamps 5 are symmetrically arranged in a concave shape. Sliding guide grooves 501 are opened in the opposite side walls of the two locking clamps 5. The sliding guide blocks 8 connected to both ends of one side of the scissor bracket 7 are slidably connected in the sliding guide grooves 501. The upper and lower ends of the opposite side walls of the two locking clamps 5 are fixedly connected to the connecting posts 502. Support springs 6 are sleeved on the connecting posts 502. The other end of the support springs 6 is connected to the inner side wall of the test chamber 1. Specifically, by inserting the straight plate-shaped air purifier filter between the two opposite locking clamps 5, the locking clamps 5 firmly fix the straight plate-shaped air purifier filter under the action of the support springs 6. The air outlet 102 can be blocked by the straight plate-shaped air purifier filter so as to test the filtration effect of the straight plate-shaped air purifier filter.

[0027] The air outlet 102 at the rear of the detection chamber 1 has an inner tube 10201. A flow meter 9 and a particulate trap 10 are fixedly connected to the upper and lower ends of the inner tube 10201, respectively. Both the flow meter 9 and the particulate trap 10 have probes that extend from the inner tube 10201 into the air outlet 102. Specifically, by fixing the flow meter 9 and the particulate trap 10 to the upper and lower ends of the inner tube 10201 of the air outlet 102, the probes of the flow meter 9 and the particulate trap 10 can detect the dust and airflow velocity in the air outlet 102 after filtration by the filter screen, thereby judging the overall filtration effect of the filter screen.

[0028] The specific usage and function of this embodiment are as follows:

[0029] When using this air purifier filter effect testing device, an auxiliary material adding pipe 10101 is fixedly connected to the top of the air inlet 101. This allows dust particles for testing to be added to the air passing through the air inlet 101 via the auxiliary material adding pipe 10101. Under the action of the guide plate 10102 at the bottom of the auxiliary material adding pipe 10101, a vortex zone is formed at the rear bottom of the auxiliary material adding pipe 10101, allowing the dust particles to mix smoothly into the air. An inner extension pipe 103 is fixed in the middle of the front inner wall of the testing chamber 1, and with the assistance of the filter fixing bracket 4, the cylindrical air purifier filter is fixed onto the inner extension pipe 103 to complete the filtration effect testing. The filter fixing bracket 4 is detachable, allowing for better combination with different air purifier filters. The dust particles are then added to the air passing through the air inlet 101 via the inner extension pipe 103. The guide cone 10301 on the inner wall can better guide the airflow, allowing the air to blow directly from the side opening 10302 and the guide groove 10304 onto the purifier filter. By inserting the straight plate-shaped purifier filter between the recesses of two opposing locking blocks 5, the locking blocks 5 are firmly fixed in place by the support spring 6. The outlet 102 can be blocked by the straight plate-shaped purifier filter to test its filtration effect. By fixing the flow meter 9 and the particulate trap 10 to the upper and lower ends of the inner tube 10201 of the outlet 102, the probes of the flow meter 9 and the particulate trap 10 can detect the dust and airflow velocity in the outlet 102 after filtration by the filter, thereby judging the overall filtration effect of the filter. Example

[0030] By adopting a design that separates the inner and outer parts of the testing chamber 1, which consists of an outer shell and an inner liner, the inner liner of the testing chamber 1 can be removed for cleaning, thereby improving the ease of cleaning the testing chamber 1.

Claims

1. A device for testing the filtration effect of an air purifier filter, characterized in that: The test chamber (1) includes an air inlet (101) fixedly connected to the middle of the front side wall of the test chamber (1), an air outlet (102) fixedly connected to the middle of the rear side wall of the test chamber (1), a sealing top cover (2) hinged to the rear of the top of the test chamber (1), a filter fixing bracket (4) slidably inserted into the inner wall of the front side wall of the test chamber (1), two sliding guide blocks (8) symmetrically connected to the left and right inner walls of the test chamber (1), a scissor bracket (7) hinged to the sliding guide block (8), a sliding guide block (8) hinged to each of the four ends of the scissor bracket (7), and two sliding guide blocks (8) on one side of the scissor bracket (7) slidably connected to the side wall of the locking clamp (5).

2. The air purifier filter effect testing device according to claim 1, characterized in that: The top of the air inlet (101) is fixedly connected to a connecting auxiliary material adding pipe (10101), and the bottom of the auxiliary material adding pipe (10101) is fixedly installed with an inclined guide plate (10102). A notch is left between the bottom of the rear side of the auxiliary material adding pipe (10101) and the guide plate (10102). A sealing cap (3) is fastened to the top of the air inlet (101).

3. The air purifier filter effect testing device according to claim 1, characterized in that: An inner tube (103) is fixedly connected to the middle of the front inner wall of the detection box (1). The inner tube (103) is connected to the air inlet (101). A conical guide cone (10301) is fixedly connected to the rear inner wall of the inner tube (103). Three side openings (10302) are arranged in a ring array in the outer wall of the inner tube (103). A connecting guide groove (10303) is provided at the rear end of the outer wall of the inner tube (103) between adjacent side openings (10302). A guide groove (10304) is provided in the outer wall of the inner tube (103) behind the guide cone (10301).

4. The air purifier filter effect testing device according to claim 1, characterized in that: The left and right inner walls of the detection box (1) are provided with trapezoidal guide grooves (104), and two sliding guide blocks (8) are symmetrically slidably connected in the guide grooves (104). An inner tube (10201) is provided in the air outlet (102) on the rear side of the detection box (1). A flow meter (9) and a particle trap (10) are fixedly connected to the upper and lower ends of the inner tube (10201) respectively.

5. The air purifier filter effect testing device according to claim 1, characterized in that: The locking clamp (5) is symmetrically arranged in a concave shape. A sliding guide groove (501) is provided in the opposite side wall of the two locking clamps (5). The sliding guide block (8) connected to both ends of one side of the scissor bracket (7) is slidably connected in the sliding guide groove (501). The upper and lower ends of the opposite side wall of the two locking clamps (5) are fixedly connected to the connecting column (502). A support spring (6) is sleeved on the connecting column (502). The other end of the support spring (6) is connected to the inner side wall of the detection box (1).

6. The air purifier filter effect testing device according to claim 1, characterized in that: The filter holder (4) is sleeved on the outside of the inner tube (103) of the detection box (1). Three connecting rods (401) are fixedly connected in a ring array on the front side wall of the filter holder (4). A connecting guide block (402) is fixedly connected on the inner side wall at the connection between the connecting rod (401) and the filter holder (4). The connecting guide block (402) is slidably connected in the connecting guide groove (10303) at the rear end of the outer side wall of the inner tube (103).

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