Rapid soot loading device of diesel particulate filter

Abstract

The utility model belongs to the technical field of tail gas emission aftertreatment, and relates to a rapid soot loading device of a diesel particulate filter, which comprises a diesel particulate filter body, one side of the diesel particulate filter body is provided and connected with an exhaust pipe, one end of the exhaust pipe is provided and connected with a fuel heater, and the other end of the exhaust pipe is provided and connected with a diesel engine. A pressure sensor and a particulate matter sensor are connected to the middle of the exhaust pipe, an air inlet is formed in one end of the fuel heater, an oil inlet path is connected to the middle of the fuel heater, and an oil storage tank is connected to one end of the oil inlet path. According to the system, automatic back pressure adjustment can be achieved, so that the soot loading time is shortened, the rapid soot loading effect is achieved, manpower, materials and time cost are greatly saved, sufficient soot loads can be provided for a regeneration test of a diesel particulate filter body through rapid soot loading, and the system is suitable for large-scale popularization and application. Therefore, research and optimization of the regeneration process are accelerated.

Description

Technical Field

[0001] This utility model belongs to the field of exhaust gas after-treatment technology, and relates to a rapid carbon soot loading device for a diesel engine particulate filter. Background Technology

[0002] A diesel particulate filter (DFF) is a device installed in the exhaust system of a diesel vehicle to reduce particulate matter in the exhaust through filtration. During use, when the carbon soot accumulates to the manufacturer's preset "full load" state, the DFF needs to be regenerated to remove the carbon soot stored in it. Therefore, regeneration-related tests for DFFs (such as regeneration emission characteristics, filtration efficiency, regeneration efficiency, and equilibrium point temperature) have always been important testing items for this product from the development stage to the certification stage.

[0003] The soot loading condition of diesel particulate filters is frequently used as a preliminary step in diesel particulate filter regeneration-related tests. Traditional methods often involve mounting the engine on a dynamometer and running it under low load conditions for an extended period to gradually load soot. However, because fuel combustion is often incomplete under low load conditions, the amount of particulate matter (i.e., soot) produced is relatively small. This not only prolongs the loading process but also makes it easy for the amount of soot loaded to be insufficient to meet the test requirements, thus affecting the accuracy and reliability of the test results. Utility Model Content

[0004] The technical problem this invention aims to solve is that traditional methods often involve mounting the engine on a dynamometer and running it under low load conditions for an extended period to gradually load soot. However, because fuel combustion under low load conditions is often incomplete, the amount of particulate matter (i.e., soot) produced is relatively small. This not only prolongs the loading process but also makes it easy for the amount of soot loaded to fail to meet the test requirements, thereby affecting the accuracy and reliability of the test results.

[0005] This utility model discloses a rapid carbon soot loading device for a diesel engine particulate filter. The device is characterized by comprising a diesel engine particulate filter body, an exhaust pipe connected to one side of the particulate filter body, a fuel heater connected to one end of the exhaust pipe, a pressure sensor connected to the middle of the exhaust pipe, a particulate matter sensor connected to the middle of the exhaust pipe, an air inlet at one end of the fuel heater, an oil inlet connected to the middle of the fuel heater, an oil reservoir connected to one end of the oil inlet, a water inlet at the middle of the fuel heater, and a water outlet at the middle of the fuel heater. A circulating water circuit is installed and connected to the middle of each water inlet. A section of the circulating water circuit is connected in series with the middle of the fuel heater. One end of the circulating water circuit is connected to a cooling water tank. A first reducing diameter connecting pipe is installed and connected to the other side of the diesel engine particulate filter body. A booster pipe is installed and connected to one end of the first reducing diameter connecting pipe. A second reducing diameter connecting pipe is installed and connected to one end of the booster pipe. A cooling pipe is connected to one end of the middle of the second reducing diameter connecting pipe. A third reducing diameter connecting pipe is connected to one end of the third reducing diameter connecting pipe. A variable frequency air pump is installed and connected to one end of the third reducing diameter connecting pipe. The pressure sensor signal is connected to a controller. The controller is connected to the booster pipe and the variable frequency air pump by signal. An installation component is provided on the back of the controller.

[0006] The installation assembly includes a connecting column, a U-shaped plate, a bidirectional lead screw, a sliding column, a sliding plate, a clamping plate, an arc-shaped groove, and a turntable. The connecting column is fixed to the back of the controller. A U-shaped plate is fixed to the bottom of the connecting column. A bidirectional lead screw is rotatably connected to the middle of the U-shaped plate. The threads at both ends of the bidirectional lead screw are in opposite directions. A sliding column is fixed to the middle of the U-shaped plate. Two sets of sliding plates are slidably connected to the middle of the sliding column. One end of each sliding plate is threaded to the bidirectional lead screw. Two sets of clamping plates are fixed to the bottom of each sliding plate. An arc-shaped groove is opened on the side of each clamping plate that is close to each other. A turntable is fixed to one end of the bidirectional lead screw. A limit component is provided in the middle of the U-shaped plate.

[0007] The limiting component includes a guide post, a limiting groove, an inner groove, and a ball bearing. The two ends of the guide post are fixed to the inner walls of both sides of the U-shaped plate. The two limiting grooves are opened in the middle of the slide plate. An inner groove is opened on both sides of the limiting groove. A ball bearing is rotatably connected in the middle of the inner groove.

[0008] Two sets of threaded rods are fixed to both sides of the U-shaped plate, and a threaded sleeve is threadedly connected to the middle of each threaded rod. An elastic rubber pad is fixed to the bottom of the threaded sleeve.

[0009] A brush plate is fixedly attached to one side of the top of the slide plate, and multiple sets of brush bristles are fixedly attached to the bottom of the brush plate. The brush bristles are in contact with the surface of the bidirectional lead screw.

[0010] The connecting column is made of copper.

[0011] Compared with the prior art, the beneficial effects of this utility model are: the system can realize automated back pressure adjustment, thereby shortening the carbon soot loading time, thus achieving a rapid carbon soot loading effect, while significantly saving manpower, material and time costs. Moreover, the rapid carbon soot loading can also provide sufficient carbon soot load for the diesel particulate filter body regeneration test, thereby accelerating the research and optimization of the regeneration process.

[0012] The installation components facilitate the secure mounting of the controller, thereby improving its stability and preventing vibrations caused by vehicle startup. This prevents the controller from easily affecting the stability of signal reception and transmission, which in turn affects the normal operation of the rapid carbon soot loading process. Attached Figure Description

[0013] Figure 1 This is a schematic diagram of the overall structure of this utility model.

[0014] Figure 2 This is a cross-sectional structural diagram of the exhaust pipe of this utility model.

[0015] Figure 3 This is a structural schematic diagram of the installation component of this utility model.

[0016] Figure 4 This is a cross-sectional structural diagram of the U-shaped plate of this utility model.

[0017] Figure 5 This is a schematic diagram of the structure of the bidirectional lead screw of this utility model.

[0018] Figure 6 This is a cross-sectional structural diagram of the skateboard of this utility model.

[0019] In the diagram: 1. Fuel heater; 2. Cooling water tank; 3. Circulating water circuit; 4. Air inlet; 5. Oil inlet; 6. Oil reservoir; 7. Exhaust pipe; 8. Pressure sensor; 9. First reducing diameter connecting pipe; 10. Boost pipe; 11. Diesel engine particulate filter body; 12. Cooling pipe; 13. Variable frequency air pump; 14. Controller; 15. Second reducing diameter connecting pipe; 17. Third reducing diameter connecting pipe; 18. Particulate sensor; 19. Water inlet; 111. Water outlet; 20. Connecting column; 21. U-shaped plate; 22. Two-way lead screw; 23. Sliding column; 24. Slide plate; 25. Clamping plate; 26. Arc groove; 27. Turntable; 30. Guide column; 31. Limiting groove; 32. Internal groove; 33. Ball bearing; 40. Threaded rod; 41. Threaded sleeve; 42. Elastic rubber pad; 50. Brush plate; 51. Brush bristles. Detailed Implementation

[0020] Example 1

[0021] like Figures 1-3 As shown, the device includes a diesel particulate filter body 11. An exhaust pipe 7 is installed and connected to one side of the diesel particulate filter body 11. A fuel heater 1 is installed and connected to one end of the exhaust pipe 7. A pressure sensor 8 and a particulate sensor 18 are installed and connected to the middle of the exhaust pipe 7. An air inlet 4 is opened at one end of the fuel heater 1. An oil inlet 5 is connected to the middle of the fuel heater 1. An oil reservoir 6 is connected to one end of the oil inlet 5. A water inlet 19 and an outlet 111 are opened in the middle of the fuel heater 1. A circulating water path 3 is installed and connected to the middle of both the outlet 111 and the inlet 19. A section of the circulating water path 3 is connected to the fuel heater. The device 1 is connected in series in the middle. One end of the circulating water circuit 3 is connected to the cooling water tank 2. The other side of the diesel engine particulate filter body 11 is connected to the first reducing pipe 9. One end of the first reducing pipe 9 is connected to the booster pipe 10. One end of the booster pipe 10 is connected to the second reducing pipe 15. One end of the second reducing pipe 15 is connected to the heat dissipation pipe 12. One end of the heat dissipation pipe 12 is connected to the third reducing pipe 17. One end of the third reducing pipe 17 is connected to the variable frequency air pump 13. The pressure sensor 8 is connected to the controller 14. The controller 14 is connected to the booster pipe 10 and the variable frequency air pump 13. The back of the controller 14 is equipped with mounting components.

[0022] During operation, the diesel particulate filter body 11 is connected to the system via the exhaust pipe 7 and the first reducing pipe 9. The fuel heater 1 mixes and ignites the air entering from the intake port 4 and the fuel drawn from the fuel tank 6 through the fuel inlet 5 in its combustion chamber. The heat in the combustion chamber of the fuel heater 1 is carried away by the circulating water circuit 3, thus alternating between hot and cold to remove heat and prevent the temperature in the combustion chamber of the fuel heater 1 from becoming too high. The boost pipe 10 is connected to the exhaust pipe 7 via the first reducing pipe 9 and the diesel particulate filter body 11. The pressure sensor 8 can detect the pressure at the exhaust pipe 7 and transmit the signal. The controller 14 and particulate matter sensor 18 monitor particulate matter growth in real time. The controller 14 uses signals transmitted from pressure sensor 8 to determine whether the exhaust back pressure needs adjustment. If the back pressure needs to be increased, the controller 14 controls the booster pipe 10 to dynamically adjust the back pressure to the target value. If the back pressure needs to be decreased, the controller 14 uses the variable frequency vacuum pump 13 to dynamically adjust the back pressure to the target value. In addition, to prevent the high exhaust temperature from damaging the variable frequency vacuum pump 13, a heat dissipation pipe 12 is installed in front, and the heat dissipation pipe 12 has a certain length to improve the overall heat dissipation effect. When the exhaust back pressure reaches the target value, the combustion... The reduced air volume in the combustion chamber of fuel heater 1, coupled with a fixed fuel injection quantity, leads to incomplete combustion of a large amount of fuel within the combustion chamber, generating substantial amounts of soot. This soot flows through the diesel particulate filter body 11, ultimately achieving rapid soot loading. The selection of the target back pressure value is crucial; different burners require different target back pressure values. This product uses a 35kW burner with a typical target back pressure of 2.5 kPa. When the back pressure is too low, the change in air intake within fuel heater 1 is not significant, and combustion remains complete. This makes it difficult to generate a large amount of carbon soot, thus hindering the rapid loading of the diesel particulate filter body 11. When the back pressure is too high, it can easily lead to a serious lack of air intake for the fuel heater 1, resulting in poor combustion of fuel in the combustion chamber of the fuel heater 1. This step can be automated by adjusting the back pressure through this system, thereby shortening the carbon soot loading time and achieving a rapid carbon soot loading effect. At the same time, it can significantly save manpower, material and time costs. Furthermore, the rapid carbon soot loading can provide sufficient carbon soot load for the regeneration test of the diesel particulate filter body 11, thereby accelerating the research and optimization of the regeneration process.

[0023] Example 2

[0024] like Figure 3 , Figure 4 , Figure 5 , Figure 6As shown, the installation assembly includes a connecting column 20, a U-shaped plate 21, a bidirectional lead screw 22, a sliding column 23, a sliding plate 24, a clamping plate 25, an arc-shaped groove 26, and a turntable 27. The connecting column 20 is fixed to the back of the controller 14. The bottom end of the connecting column 20 is fixed to the U-shaped plate 21. The middle of the U-shaped plate 21 is rotatably connected to the bidirectional lead screw 22. The threads at both ends of the bidirectional lead screw 22 are opposite. The middle of the U-shaped plate 21 is fixed to the sliding column 23. The middle of the sliding column 23 is slidably connected to two sets of sliding plates 24. One end of each sliding plate 24 is threadedly connected to the bidirectional lead screw 22. The bottom of each sliding plate 24 is fixed to two sets of clamping plates 25. The side of each clamping plate 25 that is close to each other is provided with an arc-shaped groove 26. One end of the bidirectional lead screw 22 is fixed to the turntable 27. A limit component is provided in the middle of the U-shaped plate 21.

[0025] The limiting component includes a guide post 30, a limiting groove 31, an inner groove 32, and a ball bearing 33. The two ends of the guide post 30 are fixed to the inner walls of both sides of the U-shaped plate 21. The two limiting grooves 31 are opened in the middle of the slide plate 24. The inner grooves 32 are opened on both sides of the limiting grooves 31. The ball bearing 33 is rotatably connected in the middle of the inner groove 32.

[0026] The connecting post 20 is made of copper.

[0027] During operation, when installing the system, the arc-shaped groove 26 can be aligned with a fixed object in the surrounding environment. Then, rotating the turntable 27 drives the bidirectional lead screw 22 to rotate in the middle of the U-shaped plate 21. The rotation of the bidirectional lead screw 22 will cause the slide plate 24 to move synchronously. At this time, due to the influence of the limiting component and the sliding column 23, its movement trajectory will be changed, causing it to slide along the sliding column 23. Simultaneously, due to the opposite thread direction design of the bidirectional lead screw 22, the slide plate 24 can move in the opposite direction. The movement of the slide plate 24 will drive the clamping plate 25 to move. When the clamping plate 25 moves to the appropriate position, the arc-shaped groove 26 can clamp the pipe. At this time, the rotation of the turntable 27 can be stopped, thereby fixing the position of the controller 14. This step, through the setting of the installation components, facilitates the installation and fixing of the controller 14, thereby improving the stability of the controller 14 and preventing the controller 14 from vibrating due to vehicle starting, which could easily affect the controller 14's signal reception and transmission. Stability is affected, thus impacting the normal operation of rapid carbon soot loading. During operation, when the slide plate 24 moves, it drives the limiting groove 31, the internal groove 32, and the ball bearing 33 to move synchronously along the guide post 30. At this time, the design of the guide post 30 and the limiting groove 31 fitting together can limit the movement trajectory of the slide plate 24. When the ball bearing 33 moves, it will contact the two sides of the guide post 30, thus forming friction. Under the action of friction, the ball bearing 33 can be pushed to roll. This step, through the setting of the limiting component, can assist the installation component in the installation and clamping work. The opening of the ball bearing 33 can reduce the friction between the slide plate 24 and the guide post 30, thereby improving the smoothness of the slide plate 24's movement and reducing the force required to rotate the turntable 27. During operation, the heat emitted by the controller 14 can be absorbed by the connecting post 20. This step, through the good heat absorption properties of copper itself, can enhance the heat dissipation effect of the controller 14 and improve the stability of the controller 14's operation.

[0028] Example 3

[0029] like Figure 3 As shown, two sets of threaded rods 40 are fixed to both sides of the U-shaped plate 21. A threaded sleeve 41 is threadedly connected to the middle of each threaded rod 40, and an elastic rubber pad 42 is fixed to the bottom of the threaded sleeve 41.

[0030] During operation, after the controller 14 is installed and fixed, the threaded sleeve 41 can be rotated to make it spiral along the threaded rod 40. When the threaded sleeve 41 rotates, its bottom position changes, which in turn causes the elastic rubber pad 42 to change position until the elastic rubber pad 42 moves to contact a fixed object in the surrounding environment. When the elastic rubber pad 42 contacts the fixed object in the surrounding environment, it will deform to adapt to the shape and size of the fixed object in the surrounding environment. This step, through the cooperation of the threaded rod 40, the threaded sleeve 41 and the elastic rubber pad 42, can play a role in assisting to support the installation component and the controller 14, thereby increasing the contact area between the installation component and the fixed object in the surrounding environment, and thus improving the stability of the installation component.

[0031] Example 4

[0032] like Figure 3 , Figure 4 , Figure 6 As shown, a brush plate 50 is fixedly attached to one side of the top of the slide plate 24, and multiple sets of brush bristles 51 are fixedly attached to the bottom of the brush plate 50. The brush bristles 51 are in contact with the surface of the bidirectional lead screw 22.

[0033] During operation, when the slide plate 24 moves, it will drive the brush plate 50 and brush bristles 51 to move synchronously. When the brush bristles 51 move, they will clean the threads on the surface of the bidirectional lead screw 22. This step, through the cooperation of the brush plate 50 and brush bristles 51, can prevent dust in the environment from easily adhering to the bidirectional lead screw 22, thereby causing blockage at the threads of the bidirectional lead screw 22 and affecting the meshing state between the bidirectional lead screw 22 and the slide plate 24.

[0034] The carbon soot rapid loading device for a diesel particulate filter provided by this utility model is used as follows: During operation, the diesel particulate filter body 11 is connected to the system through the exhaust pipe 7 and the first reducing pipe 9. The fuel heater 1 mixes and ignites the air entering from the intake port 4 and the fuel drawn from the fuel tank 6 through the fuel inlet 5 in its combustion chamber. The heat in the combustion chamber of the fuel heater 1 is carried away through the circulating water circuit 3, thereby alternating between hot and cold to remove heat and prevent the temperature in the combustion chamber of the fuel heater 1 from becoming too high. The booster pipe 10 is connected to the exhaust pipe 7 through the first reducing pipe 9 and the diesel particulate filter body 11. The pressure sensor 8 can detect the pressure at the exhaust pipe 7 and transmit the signal to the controller. 14. The particulate matter sensor 18 can monitor particulate matter growth in real time, while the controller 14 determines whether the exhaust back pressure needs to be adjusted based on the signal transmitted by the pressure sensor 8. If the back pressure needs to be increased, the controller 14 will control the booster pipe 10 to dynamically adjust the back pressure to the target value. If the back pressure needs to be decreased, the controller 14 will use the variable frequency vacuum pump 13 to dynamically adjust the back pressure to the target value. In addition, to prevent the high exhaust temperature from damaging the variable frequency vacuum pump 13, a heat dissipation pipe 12 is installed in front, and the heat dissipation pipe 12 has a certain length to improve the overall heat dissipation effect. When the exhaust back pressure reaches the target value, the amount of air entering the combustion chamber of the fuel heater 1 decreases, while the fuel injection quantity of the fuel heater 1 remains constant, thus causing the fuel heater... 1. Incomplete combustion of a large amount of fuel in the combustion chamber produces a large amount of soot. This soot flows through the diesel particulate filter body 11, ultimately achieving rapid soot loading of the diesel particulate filter body 11. The selection of the target back pressure value is crucial; different power burners require different target back pressure values. The burner selected for this product has a power of 35kW, and a typical target back pressure value of 2.5 kPa. When the back pressure is too low, the change in air intake in the fuel heater 1 is not significant, and combustion remains very complete, making it difficult to produce a large amount of soot and thus hindering the rapid loading of the diesel particulate filter body 11. When the back pressure is too high, it can easily lead to a severe shortage of air intake in the fuel heater 1, resulting in poor combustion of fuel in the combustion chamber of the fuel heater 1. The burning process, through which the system can automatically adjust the back pressure, shortens the soot loading time, thereby achieving rapid soot loading and significantly saving manpower, material, and time costs. Furthermore, the rapid soot loading provides sufficient soot load for the regeneration test of the diesel particulate filter body 11, accelerating the research and optimization of the regeneration process. During operation, when installing the system, the arc-shaped groove 26 can be aligned with a fixed object in the surrounding environment. Then, rotating the turntable 27 drives the bidirectional lead screw 22 to rotate in the middle of the U-shaped plate 21. The rotation of the bidirectional lead screw 22 will drive the sliding plate 24 to move synchronously. At this time, the influence of the limiting component and the sliding column 23 will change its trajectory, causing it to slide along the sliding column 23.Simultaneously, due to the opposite thread direction design at the bidirectional lead screw 22, the slide plate 24 can move in opposite directions. The movement of the slide plate 24 will drive the clamping plate 25 to move. When the clamping plate 25 moves to the appropriate position, the arc groove 26 can clamp the pipe. At this time, the rotation of the turntable 27 can be stopped, thereby fixing the position of the controller 14. This step, through the setting of the installation components, facilitates the installation and fixing of the controller 14, thereby improving the stability of the controller 14 and preventing the controller 14 from vibrating due to vehicle starting factors, which could easily affect the stability of the controller 14 in receiving and transmitting signals, thus affecting the normal operation of the rapid loading of carbon soot. During operation, when the slide plate 24 moves in the opposite direction, the arc groove 26 can clamp the pipe. At this time, the rotation of the turntable 27 can be stopped, thereby fixing the position of the controller 14. When the plate 24 moves, it drives the limiting groove 31, the internal groove 32, and the ball bearings 33 to move synchronously along the guide post 30. The design of the guide post 30 and the limiting groove 31 engaging with each other helps to limit the movement trajectory of the plate 24. The ball bearings 33 contact the sides of the guide post 30 during movement, creating friction. This friction causes the ball bearings 33 to roll. This step, through the setting of the limiting components, assists in the installation and clamping of the mounting components. Furthermore, the opening of the ball bearings 33 reduces the friction between the plate 24 and the guide post 30, thereby improving the smoothness of the plate 24's movement and reducing the force required to rotate the turntable 27. During operation, when the controller 14 is installed and fixed... Afterwards, the threaded sleeve 41 can be rotated to spiral along the threaded rod 40. As the threaded sleeve 41 rotates, its bottom position changes, causing the elastic rubber pad 42 to change position until it contacts a fixed object in the surrounding environment. Upon contact, the elastic rubber pad 42 deforms to adapt to the shape and size of the fixed object. This step, through the cooperation of the threaded rod 40, threaded sleeve 41, and elastic rubber pad 42, provides auxiliary support for the mounting assembly and controller 14, thereby increasing the contact area between the mounting assembly and the fixed object in the surrounding environment. To improve the stability of the installed components, during operation, when the slide plate 24 moves, it drives the brush plate 50 and brush bristles 51 to move synchronously. The brush bristles 51 clean the threads on the surface of the bidirectional lead screw 22 during movement. This step, through the cooperation of the brush plate 50 and brush bristles 51, prevents dust from the surrounding environment from easily adhering to the bidirectional lead screw 22, thus preventing thread blockage and affecting the meshing state between the bidirectional lead screw 22 and the slide plate 24. During operation, the heat emitted by the controller 14 can be absorbed by the connecting post 20. This step, utilizing the good heat absorption properties of copper, enhances the heat dissipation effect of the controller 14, improving the stability of its operation.

[0035] The descriptions of the orientation and relative positional relationships of the structure in this utility model, such as descriptions of front, back, left, right, up, and down, do not constitute a limitation on this utility model, but are merely for the convenience of description.

Claims

1. A soot rapid loading device for a diesel particulate filter, characterized by: Including diesel particulate filter body (11), one side of diesel particulate filter body (11) is connected with exhaust pipe (7), one end of exhaust pipe (7) is connected with fuel heater (1), middle part of exhaust pipe (7) is connected with pressure sensor (8), middle part of exhaust pipe (7) is connected with particulate matter sensor (18), one end of fuel heater (1) is provided with air inlet (4), middle part of fuel heater (1) is connected with oil inlet (5), one end of oil inlet (5) is connected with oil tank (6), middle part of fuel heater (1) is provided with water inlet (19), middle part of fuel heater (1) is provided with water outlet (111), middle part of water inlet (19) and water outlet (111) are both connected with circulating waterway (3), middle part of circulating waterway (3) is connected with middle part of fuel heater (1) in series, one end of circulating waterway (3) is connected with cooling water tank (2), the other side of diesel particulate filter body (11) is connected with first reducing pipe (9), one end of first reducing pipe (9) is connected with booster pipe (10), one end of booster pipe (10) is connected with second reducing pipe (15), middle part of second reducing pipe (15) is connected with heat dissipation pipe (12), one end of heat dissipation pipe (12) is connected with third reducing pipe (17), one end of third reducing pipe (17) is connected with variable frequency air pump (13), pressure sensor (8) is connected with controller (14), controller (14) is connected with booster pipe (10) and variable frequency air pump (13) in signal, the back of controller (14) is provided with mounting assembly.

2. A soot rapid loading device for a diesel particulate filter according to claim 1, characterized in that: The mounting assembly includes connecting column (20), U-shaped plate (21), bidirectional screw rod (22), sliding column (23), sliding plate (24), clamping plate (25), arc-shaped groove (26) and turntable (27), the connecting column (20) is fixedly connected to the back of the controller (14), the bottom end of the connecting column (20) is fixedly connected with the U-shaped plate (21), the middle part of the U-shaped plate (21) is rotatably connected with the bidirectional screw rod (22), the thread rotation directions of the two ends of the bidirectional screw rod (22) are opposite, the middle part of the U-shaped plate (21) is fixedly connected with the sliding column (23), the middle part of the sliding column (23) is slidably connected with two groups of sliding plates (24), one end of the sliding plate (24) is threadedly connected with the bidirectional screw rod (22), the bottom of the sliding plate (24) is fixedly connected with two groups of clamping plates (25), the side of the clamping plate (25) close to each other is provided with an arc-shaped groove (26), one end of the bidirectional screw rod (22) is fixedly connected with the turntable (27), and the middle part of the U-shaped plate (21) is provided with a limiting assembly.

3. A soot rapid loading device for a diesel particulate filter according to claim 2, characterized in that: The limiting assembly includes a guide column (30), a limiting groove (31), a built-in groove (32) and a ball (33), both ends of the guide column (30) are fixedly connected to the inner walls of the two sides of the U-shaped plate (21), two limiting grooves (31) are arranged in the middle part of the sliding plate (24), the two sides of the limiting groove (31) are both provided with the built-in groove (32), and the middle part of the built-in groove (32) is rotatably connected with the ball (33).

4. The soot rapid loading device of a diesel particulate filter according to claim 2, characterized by: Both sides of the U-shaped plate (21) are fixedly connected with two groups of threaded rods (40), the middle parts of the threaded rods (40) are both threadedly connected with threaded sleeves (41), and the bottom of the threaded sleeve (41) is fixedly connected with an elastic rubber pad (42).

5. The soot rapid loading device of a diesel particulate filter according to claim 2, characterized by: The sliding plate (24) is fixedly connected with brush plates (50) on one side of the top, the bottom of the brush plate (50) is fixedly connected with a plurality of brush hairs (51), and the brush hairs (51) are in contact with the surface of the bidirectional screw rod (22).

6. The soot rapid loading device of a diesel particulate filter according to claim 2, characterized by: The material of the connecting column (20) is red copper.

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