Tail gas suction and exhaust device for automobile detection

Abstract

The utility model discloses a tail gas suction and exhaust device for automobile detection, which relates to the technical field of automobile tail gas detection and comprises a bottom plate, a plurality of moving components are fixedly mounted on the bottom surface of the bottom plate and are symmetrically distributed about the center line of the bottom plate, and a support rod, a box body and an air extractor are fixedly mounted on the upper surface of the bottom plate. The supporting rod, the box body and the air extractor are linearly distributed in the length direction of the bottom plate, a plurality of sliding grooves are formed in the front face of the box body in a penetrating mode and are linearly distributed in the height direction of the box body, supporting plates corresponding to the sliding grooves are fixedly installed in the box body, filtering assemblies are arranged in the sliding grooves, and an air conveying pipe is fixedly installed on the left side of the box body; the gas conveying pipe is communicated with the box body, one end, far away from the box body, of the gas conveying pipe is communicated with the hose, and the hose made of polytetrafluoroethylene has high flexibility, so that the hose can freely move in the space, and the required working time is shortened during large-batch detection, so that the working efficiency is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of automobile exhaust detection, in particular to an automobile exhaust detection suction and exhaust device. Background Art

[0002] Automobile exhaust pollution is environmental pollution caused by exhaust gas emitted by automobiles. The main pollutants are carbon monoxide, hydrocarbons, nitrogen oxides, sulfur dioxide, lead compounds, benzopyrene and solid particles, which can cause photochemical smog, etc. In order to strengthen environmental protection, it is necessary to test automobile exhaust. When testing the exhaust of large and medium-sized cargo transport vehicles, automobile exhaust analyzers and exhaust absorbers are often needed.

[0003] For example, a vehicle exhaust detection suction and exhaust device disclosed in Chinese patent (CN217761122U) includes a base frame, a mounting frame is slidably connected to the upper end of the base frame, an adjustment mechanism is provided at the lower end of the mounting frame, a treatment box is fixedly installed on the right side of the upper end of the mounting frame, a heat dissipation mechanism is provided at the upper end of the treatment box, and an exhaust fan is fixedly installed on the left side of the treatment box. The utility model adopts the above structure. When the hot exhaust gas of the automobile enters the treatment box through the intake pipe, the corridor structure composed of the heat absorbing plate in the treatment box can increase the flow distance of the hot exhaust gas. The heat absorbing plate can conveniently absorb the heat in the hot exhaust gas. After the heat absorbing plate absorbs the heat, it uses the heat dissipation aluminum fins on the upper end of the connected treatment box to dissipate the heat. During the heat dissipation process of the heat dissipation aluminum fins, the fan on the matching frame can further improve the heat dissipation effect, so that the heat in the automobile exhaust gas can be conveniently processed efficiently.

[0004] In the above-mentioned patent, the equipment is used to detect automobile exhaust at different heights through an adjustment mechanism. The staff needs to adjust the equipment to different heights, and then connect the intake pipe with the exhaust pipe of the automobile to be tested, thereby realizing the connection between the exhaust pipe and the equipment. The required steps are relatively cumbersome. In the process of large-scale testing, the required working time increases, which leads to low work efficiency. At the same time, most of the components of the above-mentioned patent are tightly connected, and the required disassembly and installation steps are relatively cumbersome. When maintaining the equipment, the required maintenance time increases, which leads to low maintenance efficiency. Utility Model Content

[0005] In order to solve the above technical problems, an automobile exhaust detection suction and exhaust device is provided to solve the above-mentioned problems of low working efficiency and low maintenance efficiency.

[0006] In order to achieve the above purpose, the technical solution adopted by the utility model is:

[0007] A vehicle exhaust gas detection suction and exhaust device comprises a base plate, a plurality of movable components are fixedly installed on the bottom surface of the base plate, and the plurality of movable components are symmetrically distributed about the center line of the base plate, a support rod, a box body and an air pump are fixedly installed on the upper surface of the base plate, and the support rod, the box body and the air pump are linearly distributed along the length direction of the base plate, a plurality of slide grooves are opened through the front side of the box body, and the plurality of slide grooves are linearly distributed along the height direction of the box body, a support plate corresponding to the slide grooves is fixedly installed inside the box body, and filter components are arranged inside the plurality of slide grooves, an air supply pipe is fixedly installed on the left side of the box body, the air supply pipe is connected to the box body, and one end of the air supply pipe away from the box body is connected to a hose, a connecting pipe is fixedly installed on the left side of the box body, and the air pump is connected to the box body through the connecting pipe.

[0008] Preferably, the moving assembly includes a sleeve, a telescopic rod is fixedly installed inside the sleeve, a baffle is fixedly installed at the lower end of the telescopic rod, two side panels are fixedly installed on the bottom surface of the baffle, the two side panels are symmetrically distributed about the center line of the baffle, and a roller is rotatably installed on the side where the two side panels are close to each other.

[0009] Preferably, the filter assembly includes a fixed plate, a filter plate is fixedly installed on the side of the fixed plate corresponding to the slide groove, a first sealing plate is fixedly installed on the side of the fixed plate corresponding to the filter plate, the fixed plate is fixedly connected to the box body by a first bolt, the outer surface of the first bolt between the fixed plate and the box body is sleeved with a protective sleeve, the end of the filter plate away from the fixed plate is sleeved with a limiting plate, the side of the limiting plate close to the box body is fixedly installed with a second sealing plate corresponding to the slide groove, and the limiting plate is fixedly connected to the box body by a second bolt.

[0010] Preferably, an air bag is fixedly mounted on the outer surface of the hose at one end away from the air pipe.

[0011] Preferably, an arc-shaped plate corresponding to the hose is fixedly mounted on the upper end of the support rod.

[0012] Preferably, the filter plate includes a catalytic metal plate, an adsorption plate and an activated carbon plate, the catalytic metal plate is located below the gas transmission pipe, the activated carbon plate is located above the connecting pipe, and the adsorption plate is located between the catalytic metal plate and the activated carbon plate.

[0013] Preferably, the first sealing plate and the second sealing plate are made of polyurethane.

[0014] Compared with the prior art, the advantages of the utility model are: the utility model is provided with a hose, and an airbag is fixedly installed on the outer surface of one end of the hose away from the air supply pipe. After the hose enters the exhaust pipe, the airbag is deployed, thereby fixing the hose in the exhaust pipe and preventing automobile exhaust from entering the outside air. When inspecting exhaust pipes at different heights, the hose made of polytetrafluoroethylene has high flexibility, so that the hose can be moved arbitrarily in the space, thereby reducing the steps required for workers to inspect exhaust pipes at different heights. In large-scale inspection, the required working time is reduced, thereby improving work efficiency; the utility model is provided with a filter assembly, and the fixed plate in the filter assembly is fixedly connected to the box body by a first bolt, and the limit plate is fixedly connected to the box body by a second bolt, so that the steps of disassembly and installation of the equipment are greatly reduced. When maintaining the equipment, the required maintenance time is reduced, thereby improving maintenance efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 It is a schematic diagram of the three-dimensional structure of the utility model;

[0016] Figure 2 It is a three-dimensional structural schematic diagram of the utility model from another viewing angle;

[0017] Figure 3 It is a schematic diagram of the internal structure of the utility model;

[0018] Figure 4 It is a schematic diagram of the internal structure of the mobile component in the utility model;

[0019] Figure 5 The exploded view of the filter assembly in the utility model

[0020] Figure 6 It is a schematic diagram of the internal structure of the box in the utility model.

[0021] The numbers in the figure are: 1. bottom plate; 2. moving component; 3. support rod; 4. box; 5. vacuum pump; 6. slide; 7. support plate; 8. filter component; 9. air pipe; 10. connecting pipe; 11. sleeve; 12. telescopic rod; 13. baffle; 14. side plate; 15. roller; 16. fixing plate; 17. filter plate; 18. first sealing plate; 19. first bolt; 20. protective cover; 21. limit plate; 22. second sealing plate; 23. airbag; 24. arc plate; 25. catalytic metal plate; 26. adsorption plate; 27. activated carbon plate. DETAILED DESCRIPTION

[0022] The following description is used to disclose the present invention so that those skilled in the art can implement the present invention. The preferred embodiments described below are only examples, and those skilled in the art may think of other obvious variations.

[0023] Reference Figure 1-6 As shown, a vehicle exhaust detection suction and exhaust device comprises a base plate 1, a plurality of movable components 2 are fixedly installed on the bottom surface of the base plate 1, and the plurality of movable components 2 are symmetrically distributed about the center line of the base plate 1. The staff moves the equipment as a whole through the movable components 2. A support rod 3, a box body 4 and an air pump 5 are fixedly installed on the upper surface of the base plate 1. The support rod 3, the box body 4 and the air pump 5 are linearly distributed along the length direction of the base plate 1. A detector is fixedly installed on the upper surface of the box body 4. The detector analyzes the components in the vehicle exhaust. A plurality of chutes 6 are opened through the front of the box body 4. The plurality of chutes 6 are linearly distributed along the height direction of the box body 4. A support plate 7 corresponding to the chutes 6 is fixedly installed inside the box body 4. Filter components 8 are arranged inside the plurality of chutes 6. The support plate 7 filters the filter components 8. Further support is provided, and at the same time, it is convenient for the installation of the filter component 8. The filter component 8 oxidizes and adsorbs the automobile exhaust in turn. An air pipe 9 is fixedly installed on the left side of the box body 4. The air pipe 9 is connected to the box body 4. The end of the air pipe 9 away from the box body 4 is connected to a hose. The hose is made of polytetrafluoroethylene, and polytetrafluoroethylene does not react with the gas in the automobile exhaust, thereby ensuring the accuracy of the experiment. The softness of the hose allows the staff to place the hose in the automobile exhaust pipe at different heights. A connecting pipe 10 is fixedly installed on the left side of the box body 4. The vacuum pump 5 is connected to the box body 4 through the connecting pipe 10. The automobile exhaust enters the box body 4 through the hose and the air pipe 9 in turn. The automobile exhaust after detection is discharged into the air through multiple filter components 8, connecting pipes 10 and vacuum pumps 5 in turn.

[0024] like Figure 4 As shown, the moving component 2 includes a sleeve 11, a telescopic rod 12 is fixedly installed inside the sleeve 11, a baffle 13 is fixedly installed at the lower end of the telescopic rod 12, and two side panels 14 are fixedly installed on the bottom surface of the baffle 13, and the two side panels 14 are symmetrically distributed about the center line of the baffle 13, and a roller 15 is rotatably installed on the side where the two side panels 14 are close to each other. When the equipment as a whole needs to be moved, the telescopic rod 12 pushes the roller 15 to contact the ground and at the same time makes the sleeve 11 leave the ground for a distance, so that the staff can easily move the equipment. When the equipment is moved to a suitable position, the telescopic rod 12 contracts to make the sleeve 11 contact the ground and at the same time the roller 15 leaves the ground, thereby fixing the equipment in a suitable position. At the same time, in some special environments, multiple telescopic rods 12 can be controlled separately to adjust the equipment as a whole to a horizontal position.

[0025] like Figure 5As shown, the filter assembly 8 includes a fixed plate 16, a filter plate 17 is fixedly installed on the side of the fixed plate 16 corresponding to the chute 6, a first sealing plate 18 is fixedly installed on the side of the fixed plate 16 corresponding to the filter plate 17, the fixed plate 16 is fixedly connected to the box body 4 by a first bolt 19, and a protective cover 20 is sleeved on the outer surface of the first bolt 19 between the fixed plate 16 and the box body 4. When the worker installs the fixed plate 16 through the first bolt 19, the protective cover 20 plays a limiting role. A limiting plate 21 is sleeved on one end of the filter plate 17 away from the fixed plate 16, and the limiting plate 21 further supports the filter plate 17. A second sealing plate 22 corresponding to the chute 6 is fixedly installed on the side of the limiting plate 21 close to the box body 4, and the limiting plate 21 is fixedly connected to the box body 4 by a second bolt. The first sealing plate 18 and the second sealing plate 22 prevent automobile exhaust from leaving the equipment through the chute 6.

[0026] like Figure 1-3 As shown, an airbag 23 is fixedly mounted on the outer surface of one end of the hose away from the air pipe 9. After the hose enters the airbag 23 in the exhaust pipe, the hose is fixed in the exhaust pipe, while preventing the exhaust gas of the automobile from entering the outside air.

[0027] like Figure 1-3 As shown, an arc plate 24 corresponding to the hose is fixedly mounted on the upper end of the support rod 3. The support rod 3 supports the arc plate 24 so that the arc plate 24 is close to the hose, preventing cracks from appearing at the joint between the hose and the air pipe 9 after long-term use, thereby improving the accuracy of detection.

[0028] like Figure 6 As shown, the filter plate 17 includes a catalytic metal plate 25, an adsorption plate 26 and an activated carbon plate 27. The catalytic metal plate 25 is located below the gas transmission pipe 9. The main function of the catalytic metal plate 25 is to catalytically convert harmful chemical components in the exhaust gas. This metal plate is usually coated with a catalyst, which can reduce the activation energy required for the chemical reaction, promote the harmful gases in the exhaust gas to undergo chemical reactions at a lower temperature and convert them into harmless substances. The activated carbon plate 27 is located above the connecting pipe 10. The activated carbon plate 27 is the last layer of the filter plate 17. The main function is to further adsorb and filter harmful substances in the exhaust gas. The activated carbon plate 27 has an extremely high adsorption capacity and can remove residual harmful gases and odors in the exhaust gas to ensure that the discharged gas meets environmental protection standards. The adsorption plate 26 is located between the catalytic metal plate 25 and the activated carbon plate 27. The main function of the adsorption plate 26 is to adsorb tiny particles and incompletely converted harmful gases in the exhaust gas.

[0029] like Figure 1-6As shown, the first sealing plate 18 and the second sealing plate 22 are made of polyurethane. The advantages of using polyurethane are as follows: 1. Polyurethane material has excellent sealing performance and can effectively prevent the leakage of gas, liquid and tiny particles. In the application of automobile exhaust detection suction and exhaust device, the main responsibilities of the first sealing plate 18 and the second sealing plate 22 are to ensure the sealing between the filter component 8 and the box body 4 to prevent exhaust leakage; 2. Polyurethane material has good wear resistance and corrosion resistance, can resist the erosion of chemicals and particles in the exhaust gas, and maintain long-term sealing performance. In the process of automobile exhaust treatment, the exhaust gas may contain various chemicals and tiny solid particles. Polyurethane material can effectively resist these erosions and ensure the long-term stable operation of the equipment; 3. Polyurethane material has excellent elasticity and toughness, and can maintain good sealing performance within a certain deformation range. During the use of the equipment, due to changes in factors such as temperature and pressure, it may cause a small displacement or deformation between the filter component 8 and the box body 4. The polyurethane sealing plate can effectively adapt to these changes and maintain a stable sealing effect.

[0030] Working principle: the telescopic rod 12 pushes the roller 15 to contact the ground while the sleeve 11 leaves the ground for a distance, so that the staff can easily move the equipment. When the equipment is moved to the appropriate position, the telescopic rod 12 contracts to make the sleeve 11 contact the ground while the roller 15 leaves the ground, so that the equipment is fixed in the appropriate position. The staff puts the hose and the airbag 23 into the exhaust pipe of the car to be tested. The airbag 23 is unfolded to fix the hose in the exhaust pipe. At the same time, the airbag 23 can prevent the car exhaust from directly entering the outside air and affecting the test results. The car exhaust enters the box 4 through the hose and the air pipe 9 in turn. The detected gas passes through the catalytic metal plate 25, the adsorption plate 26 and the activated carbon plate 27 in turn to meet the emission standards and is discharged to the outside air through the connecting pipe 10 and the vacuum pump 5.

[0031] The above shows and describes the basic principle, main features and advantages of the utility model. Those skilled in the art should understand that the utility model is not limited by the above embodiments. The above embodiments and the specification only describe the principles of the utility model. The utility model may be subject to various changes and improvements without departing from the spirit and scope of the utility model. These changes and improvements fall within the scope of the utility model to be protected. The scope of protection claimed by the utility model is defined by the attached claims and their equivalents.

Claims

1. An automobile exhaust gas suction and exhaust device, comprising a bottom plate (1), characterized in that: A plurality of movable components (2) are fixedly mounted on the bottom surface of the base plate (1), and the plurality of movable components (2) are symmetrically distributed about the center line of the base plate (1). A support rod (3), a box body (4) and an air pump (5) are fixedly mounted on the upper surface of the base plate (1), and the support rod (3), the box body (4) and the air pump (5) are linearly distributed along the length direction of the base plate (1). A plurality of slide grooves (6) are provided through the front side of the box body (4), and the plurality of slide grooves (6) are arranged along the height direction of the box body (4). The box (4) is linearly distributed, a support plate (7) corresponding to the slide groove (6) is fixedly installed inside the box (4), and a plurality of the slide grooves (6) are provided with a filter assembly (8) inside. An air supply pipe (9) is fixedly installed on the left side of the box (4), and the air supply pipe (9) is connected to the box (4). The end of the air supply pipe (9) away from the box (4) is connected to a hose. A connecting pipe (10) is fixedly installed on the left side of the box (4), and the air pump (5) is connected to the box (4) through the connecting pipe (10).

2. The exhaust gas suction and exhaust device for automobile detection according to claim 1, characterized in that: The moving assembly (2) comprises a sleeve (11), a telescopic rod (12) is fixedly mounted inside the sleeve (11), a baffle (13) is fixedly mounted at the lower end of the telescopic rod (12), two side plates (14) are fixedly mounted on the bottom surface of the baffle (13), the two side plates (14) are symmetrically distributed about the center line of the baffle (13), and a roller (15) is rotatably mounted on the side of the two side plates (14) that are close to each other.

3. The vehicle exhaust gas detection suction and exhaust device according to claim 1, characterized in that: The filter assembly (8) comprises a fixed plate (16), a filter plate (17) is fixedly mounted on the side of the fixed plate (16) corresponding to the slide groove (6), a first sealing plate (18) is fixedly mounted on the side of the fixed plate (16) corresponding to the filter plate (17), the fixed plate (16) is fixedly connected to the housing (4) by a first bolt (19), a protective sleeve (20) is sleeved on the outer surface of the first bolt (19) between the fixed plate (16) and the housing (4), a limiting plate (21) is sleeved on one end of the filter plate (17) away from the fixed plate (16), a second sealing plate (22) corresponding to the slide groove (6) is fixedly mounted on the side of the limiting plate (21) close to the housing (4), and the limiting plate (21) is fixedly connected to the housing (4) by a second bolt.

4. The automobile exhaust gas detection suction and exhaust device according to claim 1, characterized in that: An air bag (23) is fixedly mounted on the outer surface of one end of the hose away from the air delivery pipe (9).

5. The automobile exhaust gas detection suction and exhaust device according to claim 1, characterized in that: An arc-shaped plate (24) corresponding to the hose is fixedly mounted on the upper end of the support rod (3).

6. The automobile exhaust gas detection suction and exhaust device according to claim 3, characterized in that: The filter plate (17) comprises a catalytic metal plate (25), an adsorption plate (26) and an activated carbon plate (27); the catalytic metal plate (25) is located below the gas transmission pipe (9); the activated carbon plate (27) is located above the connecting pipe (10); and the adsorption plate (26) is located between the catalytic metal plate (25) and the activated carbon plate (27).

7. The automobile exhaust gas detection suction and exhaust device according to claim 3, characterized in that: The first sealing plate (18) and the second sealing plate (22) are made of polyurethane.

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