Device for detecting through hole rate of automobile exhaust purification filter

Abstract

The utility model discloses an automobile exhaust purification filter through hole rate detection device, which comprises an automatic detection mechanism, a height adjusting mechanism and a convenient moving mechanism, and is characterized in that the automatic detection mechanism comprises a detection box, the upper side of the detection box is fixedly provided with a compressor, and the output end of the compressor is fixedly connected with a corrugated pipe; the lower side of the corrugated pipe is fixedly connected with a plug, and the outside of the plug is fixedly connected with a connecting plate. Through the arrangement of the automatic detection mechanism, the filter is placed on the opening groove of the detection box, so that the filter is located under the plug, the first electric push rod at the top of the detection box is started, the first electric push rod pushes the connecting plate to descend, then the corrugated pipe and the plug are driven to descend, and the plug is in close contact with the filter in the descending process; the detection box is sealed, the compressor on the upper side of the detection box starts to work, and gas is pressed into the filter through the corrugated pipe and the plug, so that the gas can be automatically introduced into the automobile exhaust purification filter.

Description

Technical Field

[0001] This utility model relates to the field of automotive exhaust gas purification filter testing technology, specifically a device for testing the porosity of automotive exhaust gas purification filters. Background Technology

[0002] An automotive exhaust filter is an important device installed in a car's exhaust system, primarily used to reduce the emission of harmful substances in vehicle exhaust. Automotive exhaust filters purify exhaust gases through various methods, including physical filtration, chemical adsorption, and catalytic conversion. The filter may contain materials with adsorption properties, such as activated carbon. These materials can adsorb harmful gases in the exhaust, such as carbon monoxide (CO) and hydrocarbons (HC), fixing them inside the filter and preventing them from being released into the atmosphere.

[0003] After automotive exhaust filters are manufactured, they need to be tested to determine their porosity. This is typically done using a porosity testing device. However, most current porosity testing devices require manual gas introduction into the filter, making the testing cumbersome and impractical. Therefore, to address this issue, a new porosity testing device for automotive exhaust filters is proposed. Utility Model Content

[0004] The present invention aims to solve the technical problems existing in the prior art and provides a device for detecting the porosity of automotive exhaust filters.

[0005] To achieve the above objectives, this utility model provides the following technical solution: a detection device for the porosity of an automotive exhaust filter, comprising an automatic detection mechanism, a height adjustment mechanism, and a movable mechanism. The automatic detection mechanism includes a detection box, a compressor fixedly mounted on the upper side of the detection box, a bellows fixedly connected to the output end of the compressor, a plug fixedly connected to the lower side of the bellows, a connecting plate fixedly connected to the outside of the plug, a first electric push rod fixedly mounted on the top of the detection box, the first electric push rod being fixedly connected to the connecting plate, an opening slot being provided inside the detection box, a flow sensor fixedly mounted on the lower side of the detection box, the flow sensor being positioned below the opening slot, the plug being positioned above the opening slot, and the filter being positioned between the plug and the opening slot.

[0006] Preferably, handles are fixedly connected to both sides of the testing box, and a transparent glass plate is fixedly connected inside the testing box. Two transparent glass plates are provided, respectively located on the front and rear sides inside the testing box.

[0007] Preferably, a protective railing is fixedly connected to the upper side of the testing box, and a plurality of ventilation grooves are provided through the surface of the protective railing. The protective railing is located on the outside of the compressor.

[0008] Preferably, a rubber pad is fixedly connected to the bottom of the detection box, and a plurality of textured grooves are formed on the upper surface of the rubber pad, which are distributed in a straight line on the upper surface of the rubber pad.

[0009] Preferably, the inside of the detection box is provided with a setting groove, and a rubber block is provided inside the setting groove. A sealing plate is fixedly connected to one side of the rubber block, and a lever is fixedly connected to one side of the sealing plate. The rubber block is located on both sides of the sealing plate and contacts the setting groove. Therefore, the sealing plate needs to be manually moved to slide within the setting groove.

[0010] Preferably, the height adjustment mechanism includes a mounting frame, which is fixedly connected to the lower side of the detection box. A straight groove is formed on the surface of the mounting frame, and a guide rod is slidably connected inside the mounting frame. A set screw is threaded inside the guide rod, and the set screw is first screwed into the guide rod through the straight groove. The lower end of the guide rod is located at the lower side of the mounting frame.

[0011] Preferably, the movable mechanism includes a hidden groove, which is formed inside the guide rod. A second electric push rod is fixedly installed inside the hidden groove. A caster wheel is rotatably connected to the lower side of the second electric push rod. The caster wheel is disposed in the hidden groove. The caster wheel can be pushed out of the hidden groove by the extension and retraction of the second electric push rod.

[0012] Compared with the prior art, the beneficial effects of this utility model are as follows:

[0013] 1. This utility model, through the setting of an automatic detection mechanism, places the filter on the slot of the detection box, so that the filter is directly below the plug. Activating the first electric push rod on the top of the detection box pushes the connecting plate down, thereby driving the bellows and plug down. During the descent, the plug comes into close contact with the filter, sealing it. The compressor on the upper side of the detection box starts working, pressing the gas through the bellows and plug into the filter, thus automatically introducing the gas into the automotive exhaust purification filter. Attached Figure Description

[0014] The accompanying drawings are provided to further illustrate the present invention and form part of the specification. They are used together with the embodiments of the present invention to explain the present invention, but do not constitute a limitation thereof. In the drawings:

[0015] Figure 1 This is a frontal view of the overall structure of this utility model;

[0016] Figure 2 This is a side view of the overall structure of this utility model;

[0017] Figure 3 This is a schematic diagram of the first frontal cross-section of the present invention;

[0018] Figure 4 This is a schematic diagram of the second frontal cross-section of the present invention.

[0019] In the diagram: 1. Detection box; 2. Compressor; 3. Bellows; 4. Plug; 5. Connecting plate; 6. First electric push rod; 7. Opening slot; 8. Flow sensor; 9. Handle; 10. Transparent glass plate; 11. Guardrail; 12. Ventilation slot; 13. Rubber pad; 14. Textured groove; 15. Setting slot; 16. Rubber block; 17. Sealing plate; 18. Lever; 19. Setting frame; 20. Straight groove; 21. Guide rod; 22. Top screw; 23. Concealed slot; 24. Second electric push rod; 25. Caster wheel. Detailed Implementation

[0020] 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.

[0021] Please see Figure 1-4A device for detecting the porosity of an automotive exhaust filter includes an automatic detection mechanism, a height adjustment mechanism, and a movable mechanism. The automatic detection mechanism includes a detection box 1, a compressor 2 fixedly mounted on the upper side of the detection box 1, a bellows 3 fixedly connected to the output end of the compressor 2, a plug 4 fixedly connected to the lower side of the bellows 3, a connecting plate 5 fixedly connected to the outside of the plug 4, a first electric push rod 6 fixedly mounted on the top of the detection box 1, and the first electric push rod 6 fixedly connected to the connecting plate 5. An opening slot 7 is provided inside the detection box 1, a flow sensor 8 is fixedly mounted on the lower side of the detection box 1, handles 9 are fixedly connected to both sides of the detection box 1, and a transparent glass plate 10 is fixedly connected inside the detection box 1. When it is necessary to detect the porosity of the automotive exhaust filter, the filter is placed on the opening slot 7 of the detection box 1, so that the filter is directly below the plug 4. The first electric push rod 6 on the top of the test box 1 is activated. The first electric push rod 6 pushes the connecting plate 5 down, which in turn drives the bellows 3 and plug 4 down. During the descent, the plug 4 comes into close contact with the filter and seals it. The compressor 2 on the upper side of the test box 1 starts working, pressing the gas through the bellows 3 and plug 4 into the filter, thus automatically introducing the gas into the vehicle exhaust purification filter. Due to the different open holes and blockage conditions of the filter, the gas flow rate through the filter will also be different. The flow sensor 8 on the lower side of the test box 1 monitors the gas flow rate after passing through the filter in real time. Based on the data from the flow sensor 8, the filter's open hole rate can be calculated. The handles 9 on both sides of the test box 1 facilitate the operator to move the test device. The transparent glass plate 10 inside the test box 1 allows the operator to observe the filter's test status without opening the test box 1.

[0022] In one aspect of this embodiment, the protective railing 11 on the upper side of the test box 1 can protect the compressor 2 from external impact. The ventilation groove 12 through the surface of the protective railing 11 can ensure good heat dissipation of the compressor 2. After the filter is placed in the test box 1, the rubber pad 13 and textured groove 14 make the filter more stable and less prone to slipping.

[0023] In one aspect of this embodiment, after the filter is placed into the test chamber 1, the lever 18 is pressed manually. Through the friction between the rubber block 16 and the setting groove 15, the sealing plate 17 slides out of the setting groove 15, thereby sealing the test chamber 1 and allowing the filter to be tested more effectively.

[0024] In one aspect of this embodiment, when the height of the detection device needs to be adjusted, the set screw 22 inside the guide rod 21 is loosened. Since the mounting frame 19 is fixed to the lower side of the detection box 1, and the guide rod 21 is slidably connected to the mounting frame 19, the guide rod 21 can be moved up and down to change the height of the detection device. After adjusting to a suitable height, the set screw 22 is tightened again. Through the cooperation of the set screw 22 and the straight groove 20, the guide rod 21 is fixed on the mounting frame 19, thereby realizing the adjustment of the height of the detection device. When the detection device needs to be moved, the second electric push rod 24 inside the hidden groove 23 is activated. The second electric push rod 24 extends and pushes the universal wheel 25 out of the hidden groove 23, so that the universal wheel 25 contacts the ground. At this time, the detection device can be easily moved to the required position by pushing the detection device and with the help of the rolling of the universal wheel 25. When the detection device does not need to be moved, the second electric push rod 24 retracts and pulls the universal wheel 25 back into the hidden groove 23, so that the detection device is stably placed on the ground.

[0025] The working principle of this utility model is as follows: When using the detection device for the porosity of the automotive exhaust gas purification filter, the filter is placed on the slot 7 of the detection box 1, so that the filter is directly below the plug 4. The lever 18 is manually pressed, and the friction between the rubber block 16 and the setting slot 15 causes the sealing plate 17 to slide out of the setting slot 15, thereby sealing the detection box 1. Then, the first electric push rod 6 on the top of the detection box 1 is activated. The first electric push rod 6 pushes the connecting plate 5 down, which in turn drives the bellows 3 and the plug 4 down. During the descent, the plug 4 comes into close contact with the filter and seals it. The compressor 2 on the upper side of the detection box 1 starts to work, pressing the gas into the filter through the bellows 3 and the plug 4, thus automatically introducing the gas into the automotive exhaust gas purification filter. Due to the different porosity and blockage of the filter, the gas flow rate through the filter will also be different. The flow sensor 8 on the lower side of the detection box 1 monitors the gas flow rate after passing through the filter in real time. Based on the data of the flow sensor 8, the porosity of the filter can be calculated. In this solution, all electrical equipment is powered by an external power source.

[0026] Finally, it should be noted that the above description is merely a preferred embodiment of this utility model and is not intended to limit the utility model. Although the utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of this utility model should be included within the protection scope of this utility model.

Claims

1. A device for detecting the porosity of an automotive exhaust filter, comprising an automatic detection mechanism, a height adjustment mechanism, and a movable mechanism, characterized in that: The automatic detection mechanism includes a detection box (1), a compressor (2) is fixedly installed on the upper side of the detection box (1), a bellows (3) is fixedly connected to the output end of the compressor (2), a plug (4) is fixedly connected to the lower side of the bellows (3), a connecting plate (5) is fixedly connected to the outside of the plug (4), a first electric push rod (6) is fixedly installed on the top of the detection box (1), the first electric push rod (6) is fixedly connected to the connecting plate (5), an opening slot (7) is opened inside the detection box (1), and a flow sensor (8) is fixedly installed on the lower side of the detection box (1).

2. The device for detecting the porosity of an automotive exhaust filter according to claim 1, characterized in that: The test box (1) is fixedly connected to handles (9) on both sides, and a transparent glass plate (10) is fixedly connected inside the test box (1).

3. The device for detecting the porosity of an automotive exhaust filter according to claim 1, characterized in that: The upper side of the testing box (1) is fixedly connected to a protective railing (11), and the surface of the protective railing (11) is provided with a ventilation groove (12).

4. The device for detecting the porosity of an automotive exhaust filter according to claim 1, characterized in that: A rubber pad (13) is fixedly connected to the bottom of the detection box (1), and a textured groove (14) is opened on the upper surface of the rubber pad (13).

5. The device for detecting the porosity of an automotive exhaust filter according to claim 1, characterized in that: The detection box (1) has a setting slot (15) inside, and a rubber block (16) is set inside the setting slot (15). A sealing plate (17) is fixedly connected to one side of the rubber block (16), and a lever (18) is fixedly connected to one side of the sealing plate (17).

6. The device for detecting the porosity of an automotive exhaust filter according to claim 1, characterized in that: The height adjustment mechanism includes a mounting frame (19), which is fixedly connected to the lower side of the detection box (1). A straight groove (20) is provided on the surface of the mounting frame (19). A guide rod (21) is slidably connected inside the mounting frame (19), and a set screw (22) is threaded inside the guide rod (21).

7. The device for detecting the porosity of an automotive exhaust filter according to claim 6, characterized in that: The movable mechanism includes a hidden groove (23), which is opened inside the guide rod (21). A second electric push rod (24) is fixedly installed inside the hidden groove (23), and a universal wheel (25) is rotatably connected to the lower side of the second electric push rod (24).

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