Asymmetric particulate filter for diesel engine

Abstract

The present invention relates to the technical field of collectors, and specifically to an asymmetric particulate collector for a diesel engine, comprising a collector housing, a fixed structure arranged in the collector housing, the fixed structure consisting of an exhaust pipe of a columnar structure, a first sealing plate of an annular structure, a partition plate and an air guide plate, a zigzag connecting groove is provided in the air guide plate, the two ends of the connecting groove respectively penetrate the surfaces of the two sides of the air guide plate, an air outlet groove is provided on the outer wall of the exhaust pipe and between the partition plate and the air guide plate, and a collecting structure is arranged in the collector housing. The present invention designs a fixed structure, a collecting structure and an air guide unit, and the gas is introduced into a first collecting block through the air guide unit, and the gas filtered in the first collecting block is introduced into a second collecting block through the air guide plate, so as to realize secondary filtration and purification of the gas, and at the same time, the first collecting block and the second collecting block are easy to disassemble and clean, and the clogging of the collector is avoided.

Description

Technical Field

[0001] The invention relates to the technical field of traps, and in particular to an asymmetric particle trap for a diesel engine. Background Art

[0002] The particulate filter is a dense ceramic filter, usually installed in the engine emission system. The particulate filter dedicated to diesel vehicles is also called DPF. The channel inside the DPF is a cross structure. When the exhaust gas passes through the cross structure, the gas inside is discharged normally, and the polluted particles produced by incomplete combustion are filtered through the cross structure and retained in the particulate filter.

[0003] Since DPF is a dense structure, it is easy to cause blockage after a certain period of use, and the particles are often very sticky and adhere to the cross structure and cannot be removed by airflow. In the prior art, when the DPF is blocked, the engine power needs to be increased. When the temperature in the engine reaches the ignition point of the particles, the particles are burned and converted into gas for discharge. However, the existing engines often have a temperature that cannot fully reach the ignition point of the particles, which results in a poor regeneration effect of the DPF. There are still a large number of particles remaining in the DPF, affecting the use of the diesel engine. Summary of the invention

[0004] The purpose of the present invention is to solve the problems in the background technology and to propose an asymmetric particulate filter for a diesel engine.

[0005] In order to achieve the above object, the present invention adopts the following technical solution: an asymmetric particulate filter for a diesel engine, comprising a filter housing, an opening is formed on the filter housing, a sealing mechanism is provided on the inner wall of the opening, and a fixing structure is provided inside the filter housing;

[0006] The fixed structure is composed of an exhaust pipe of a columnar structure, a first sealing plate of an annular structure, a partition plate and an air guide plate, the first sealing plate is in contact with the inner wall of the collector shell, the exhaust pipe is fixedly mounted on one side of the first sealing plate, the exhaust pipe is sealed on the side away from the first sealing plate, the partition plate and the air guide plate are both fixedly mounted on the outer wall of the exhaust pipe, four partition plates and four air guide plates are provided, the partition plates and the air guide plates are arranged alternately, a zigzag connecting groove is provided inside the air guide plate, the two ends of the connecting groove respectively penetrate the surfaces on both sides of the air guide plate, an air outlet groove is provided on the outer wall of the exhaust pipe and between the partition plate and the air guide plate, and a capturing structure is provided inside the collector shell;

[0007] The capture structure consists of a first capture block with an arc structure and a second capture block with an arc structure. The first capture block and the second capture block are both inserted between the partition plate and the air guide plate. The first capture block and the second capture block are alternately arranged, and an air guide unit is arranged in the collector shell.

[0008] In the above-mentioned asymmetric particulate filter for diesel engines, the air guide unit is slidably connected to the inner wall of the filter housing, and an air inlet hole with an arc-shaped structure is provided on the side of the air guide unit away from the first sealing plate, and an air supply pipe with an arc-shaped structure is fixedly installed on the side of the air guide unit close to the first sealing plate. The air supply pipe is connected to the air inlet hole, and the air supply pipe corresponds to the first collector block one by one and conflicts with the corresponding first collector block.

[0009] In the above-mentioned asymmetric diesel engine particulate filter, a second sealing plate is fixedly mounted on the side of the air guide unit close to the exhaust pipe, a plurality of evenly distributed make way slots are formed on the second sealing plate, and a transmission structure is arranged in the filter housing.

[0010] In the above-mentioned asymmetric particulate collector for diesel engines, the transmission structure consists of a transmission screw, an extrusion block, a connecting gear and a rack. A fixing frame is fixedly installed on the inner wall of the collector housing, and the transmission screw is rotatably connected to the fixing frame. The transmission screw is threadedly connected to the air guide unit. The end of the transmission screw close to the exhaust pipe extends into the exhaust pipe. An extrusion groove is provided on the air guide unit. The extrusion block is slidably connected to the inner wall of the collector housing. The extrusion block passes through the extrusion groove. An inclined surface is provided on the side of the extrusion block close to the exhaust pipe. A number of evenly distributed transmission teeth are fixedly installed on the bottom of the extrusion block. The rack is fixedly installed on the side of the air guide unit away from the exhaust pipe. The connecting gear is rotatably connected to the inner wall of the collector housing, and the connecting gear is meshed with the transmission gear and the rack. A first inclined surface is provided on the side of the first collector block close to the air guide unit, and a second inclined surface is provided on the side of the second collector block close to the air guide unit. A rotating structure is provided in the transmission screw.

[0011] In the above-mentioned asymmetric particulate collector for a diesel engine, the rotating structure is composed of a sliding groove, a sliding rod, and a first block and a second block. The sliding groove is opened on the side of the transmission screw close to the exhaust pipe, the sliding rod is slidably connected to the sliding groove, the first block and the second block are respectively fixedly mounted at both ends of the sliding rod, the first block and the second block both extend out of the sliding groove, a return spring is arranged in the sliding groove, the return spring is in contact with the sliding rod, and a groove is opened on the inner wall of the exhaust pipe.

[0012] In the above-mentioned asymmetric particulate filter for a diesel engine, a plurality of fixing rods are fixedly mounted on the fixing frame, a compression spring is sleeved on the fixing rod, the compression spring is fixedly connected to the fixing rod, and a plurality of fixing grooves are opened on one side of the air guide unit close to the fixing rod, and the fixing grooves correspond to the fixing rods one by one.

[0013] In the above-mentioned asymmetric particulate filter for a diesel engine, a driving mechanism is provided at one end of the filter housing away from the exhaust pipe, the driving mechanism is fixedly connected to the transmission screw, a high-temperature nozzle and a high-pressure nozzle are fixedly installed on the outer wall of the filter housing, and an intake pipe is fixedly connected to the filter housing.

[0014] In the above-mentioned asymmetric particulate filter for a diesel engine, a ball is rotatably connected to a side of the first clamping block close to the second clamping block.

[0015] Compared with the existing technology, the advantages of the present invention are: 1. The present invention designs a fixed structure, a capture structure and an air guide unit, and the gas is introduced into the first capture block through the air guide unit, and the gas filtered in the first capture block is introduced into the second capture block through the air guide plate, thereby realizing secondary filtration and purification of the gas. At the same time, the first capture block and the second capture block are easy to disassemble and clean, thereby avoiding the occurrence of blockage of the collector.

[0016] 2. The present invention designs a transmission structure, which drives the transmission screw to rotate through the driving mechanism, and then drives the air guide unit to move. Through the cooperation between the transmission teeth, the connecting gear and the rack, the extrusion block is made to contact the first inclined surface and the second inclined surface, so that the first capture block and the second capture block are ejected, thereby increasing the convenience of disassembly of the first capture block and the second capture block.

[0017] 3. The present invention designs a rotating structure. When the air guide unit moves a specified distance, the air guide unit drives the second card block to move, so that the second card block drives the sliding rod to move, and the sliding rod drives the first card block to move and rotate. When the first card block moves a specified distance, the first card block contacts the slot. At this time, the exhaust pipe is driven to rotate by the first card block, which facilitates the disassembly of all capture structures and further increases the convenience of disassembly of the first capture block and the second capture block. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 It is a three-dimensional structural schematic diagram of the present invention.

[0019] Figure 2 It is a partial cross-sectional structural schematic diagram of the present invention.

[0020] Figure 3 The present invention Figure 3 Schematic diagram of the local enlarged structure at point A in the middle.

[0021] Figure 4 It is a three-dimensional cross-sectional structural schematic diagram of the connecting groove of the present invention.

[0022] Figure 5 It is a three-dimensional cross-sectional structural schematic diagram of the extrusion through groove and the air supply pipe of the present invention.

[0023] Figure 6 It is a schematic diagram of the three-dimensional structure of the air guide unit of the present invention.

[0024] Figure 7 It is a schematic diagram of the three-dimensional structure of the first inclined surface and the second inclined surface of the present invention.

[0025] Figure 8 It is a three-dimensional cross-sectional structural schematic diagram of the first card block and the card slot of the present invention.

[0026] Fig. 9 It is a three-dimensional structural schematic diagram of the fixing structure and the capturing structure of the present invention.

[0027] In the figure: 1. collector shell; 2. exhaust pipe; 22. partition plate; 23. air guide plate; 231. connecting groove; 25. air outlet groove; 3. first collector block; 4. second collector block; 5. air guide unit; 51. air inlet hole; 52. air supply pipe; 53. second sealing plate; 54. clearance notch; 6. transmission screw; 7. extrusion block; 8. connecting gear; 9. rack; 10. fixed frame; 31. first inclined surface; 41. second inclined surface; 71. transmission tooth; 72. inclined surface; 61. sliding groove; 62. sliding rod; 63. first clamping block; 65. reset spring; 26. clamping groove; 101. fixing rod; 102. extrusion spring; 56. fixing groove; 631. ball; 12. air inlet pipe; 57. extrusion groove. DETAILED DESCRIPTION

[0028] The technical solutions in the embodiments of the present invention will be described clearly and completely below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all the embodiments.

[0029] In the description of the present invention, it is necessary to understand that the terms "upper", "lower", "front", "back", "left", "right", "top", "bottom", "inside", "outside", etc., indicating the orientation or position relationship are based on the orientation or position relationship shown in the drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the present invention.

[0030] Reference Figure 1-Figure 9, an asymmetric particulate collector for a diesel engine, comprising a collector housing 1, an opening is provided on the collector housing 1, a sealing mechanism is provided on the inner wall of the opening, a fixed structure is provided in the collector housing 1, the fixed structure is composed of an exhaust pipe 2 with a columnar structure, a first sealing plate with an annular structure, a partition plate 22 and an air guide plate 23, the first sealing plate is in contact with the inner wall of the collector housing 1, the exhaust pipe 2 is fixedly mounted on one side of the first sealing plate, the exhaust pipe 2 is sealed on the side away from the first sealing plate, the partition plate 22 and the air guide plate 23 are both fixedly mounted on the outer wall of the exhaust pipe 2, four of the partition plates 22 and the air guide plates 23 are provided, the partition plates 22 and the air guide plates 23 are alternately arranged, a zigzag connecting groove 231 is provided inside the air guide plate 23, the two ends of the connecting groove 231 respectively penetrate the surfaces on both sides of the air guide plate 23, and the outer wall of the exhaust pipe 2 is parallel to the connecting groove 231. An air outlet groove 25 is provided between the partition plate 22 and the air guide plate 23, and a collecting structure is provided in the collector shell 1. The collecting structure consists of a first collecting block 3 with an arc structure and a second collecting block 4 with an arc structure. The first collecting block 3 and the second collecting block 4 are both inserted between the partition plate 22 and the air guide plate 23. The first collecting block 3 and the second collecting block 4 are alternately arranged. An air guide unit 5 is provided in the collector shell 1. The gas is introduced into the first collecting block 3 through the air guide unit 5. The gas passing through the first collecting block 3 enters the second collecting block 4 through the connecting groove 231. The gas passing through the second collecting block 4 is collected into the exhaust pipe 2 through the air outlet groove 25 and finally discharged through the exhaust pipe 2, thereby realizing the gas purification and filtering function. At the same time, the first collecting block 3 and the second collecting block 4 are easy to take out, which is convenient for the first collecting block 3 and the second collecting block 4 to perform the regeneration operation.

[0031] The air guide unit 5 is slidably connected to the inner wall of the collector shell 1, and an arc-shaped air inlet hole 51 is provided on the side of the air guide unit 5 away from the first sealing plate, and an arc-shaped air supply pipe 52 is fixedly installed on the side of the air guide unit 5 close to the first sealing plate, and the air supply pipe 52 is connected with the air inlet hole 51. The air supply pipe 52 corresponds to the first capture block 3 one by one and conflicts with the corresponding first capture block 3. The gas enters the air supply pipe 52 evenly through the air inlet hole 51, and the gas enters the corresponding first capture block 3 through the air supply pipe 52.

[0032] A second sealing plate 53 is fixedly installed on one side of the air guide unit 5 close to the exhaust pipe 2. The second sealing plate 53 is provided with a plurality of evenly distributed make way slots 54. A transmission structure is provided in the collector housing 1. The second sealing plate 53 is used to seal the first capture block 3 and the second capture block 4 during operation to prevent gas from contaminating the air guide unit 5.

[0033] The transmission structure consists of a transmission screw 6, an extrusion block 7, a connecting gear 8 and a rack 9. A fixing frame 10 is fixedly installed on the inner wall of the collector housing 1. The transmission screw 6 is rotatably connected to the fixing frame 10. The transmission screw 6 is threadedly connected to the air guide unit 5. The end of the transmission screw 6 close to the exhaust pipe 2 extends into the exhaust pipe 2. An extrusion groove 57 is provided on the air guide unit 5. The extrusion block 7 is slidably connected to the inner wall of the collector housing 1. The extrusion block 7 passes through the extrusion groove 57. An inclined surface 72 is provided on the side of the extrusion block 7 close to the exhaust pipe 2. A plurality of evenly distributed transmission teeth 71 are fixedly installed on the bottom of the extrusion block 7. The rack 9 is fixedly installed on the air guide unit 5 is on the side away from the exhaust pipe 2, the connecting gear 8 is rotatably connected to the inner wall of the collector housing 1, the connecting gear 8 is meshed with the transmission gear 71 and the rack 9, the first collector block 3 is provided with a first inclined surface 31 on the side close to the air guide unit 5, the second collector block 4 is provided with a second inclined surface 41 on the side close to the air guide unit 5, a rotating structure is provided in the transmission screw 6, the air guide unit 5 drives the rack 9 to move by rotating the transmission screw 6, the extrusion block 7 is moved in the opposite direction in cooperation with the transmission gear 71 and the connecting gear 8, the inclined surface 72 contacts the first inclined surface 31 or the second inclined surface 41, so that the first collector block 3 and the second collector block 4 are lifted out of the collector housing 1, so as to be taken out and cleaned conveniently.

[0034] The rotating structure consists of a sliding groove 61, a sliding rod 62, a first clamping block 63 and a second clamping block. The sliding groove 61 is arranged on a side of the transmission screw 6 close to the exhaust pipe 2. The sliding rod 62 is slidably connected to the sliding groove 61. The first clamping block 63 and the second clamping block are respectively fixedly mounted at both ends of the sliding rod 62. The first clamping block 63 and the second clamping block both extend out of the sliding groove 61. A return spring 65 is arranged in the sliding groove 61. The return spring 65 abuts against the sliding rod 62. A clamping groove 26 is arranged on the inner wall of the exhaust pipe 2. The air guide unit 5 is driven to move by the transmission screw 6. When the air guide unit 5 abuts against the second clamping block, the sliding rod 62 is driven to move by the second clamping block, and the first clamping block 63 is driven to move by the sliding rod 62. When the first clamping block 63 moves a specified distance, the first clamping block 63 is inserted into the clamping groove 26. The first clamping block 63 drives the exhaust pipe 2 to rotate through the transmission screw 6, so as to facilitate the subsequent removal of all the first capture blocks 3 and the second capture blocks 4.

[0035] A plurality of fixing rods 101 are fixedly mounted on the fixing frame 10, and an extrusion spring 102 is sleeved on the fixing rod 101, and the extrusion spring 102 is fixedly connected to the fixing rod 101. A plurality of fixing grooves 56 are opened on the side of the air guide unit 5 close to the fixing rod 101, and the fixing grooves 56 correspond to the fixing rods 101 one by one. When the air guide unit 5 moves a specified distance, the air guide unit 5 and the transmission screw 6 are no longer in a threaded connection state. At this time, the fixing rod 101 is inserted into the fixing groove 56, and the extrusion spring 102 is cooperated to resist the air guide unit 5, so that the transmission screw 6 can rotate in the opposite direction and drive the air guide unit 5 to reset.

[0036] A driving mechanism is provided at one end of the collector shell 1 away from the exhaust pipe 2, and the driving mechanism is fixedly connected to the driving screw 6. A high-temperature nozzle and a high-pressure nozzle are fixedly installed on the outer wall of the collector shell 1. An intake pipe 12 is fixedly connected to the collector shell 1. The driving mechanism is used to drive the transmission mechanism and drive the rotating mechanism to operate. The high-temperature nozzle is used to burn the accumulated carbon particles in the first capture block 3 and the second capture block 4, and the high-pressure nozzle is used to blow out the burned substances.

[0037] A ball 631 is rotatably connected to one side of the first clamping block 63 close to the second clamping block. The ball 631 is used to reduce the sliding resistance between the first fixing block and the inner wall of the exhaust pipe 2 .

[0038] It is further explained that the above-mentioned fixed connection should be understood in a broad sense unless otherwise clearly specified and limited. For example, it can be welding, gluing, or one-piece molding, etc., which are conventional means well known to those skilled in the art.

[0039] The above description is only a preferred specific implementation manner of the present invention, but the protection scope of the present invention is not limited thereto. Any technician familiar with the technical field can make equivalent replacements or changes according to the technical scheme and inventive concept of the present invention within the technical scope disclosed by the present invention, which should be covered by the protection scope of the present invention.

Claims

1. An asymmetric particulate filter for a diesel engine, comprising a filter housing (1), characterized in that: The collector housing (1) is provided with an opening, and a sealing mechanism is provided on the inner wall of the opening. A fixed structure is provided inside the collector housing (1); the fixed structure is composed of an exhaust pipe (2) of a columnar structure, a first sealing plate of an annular structure, a partition plate (22) and an air guide plate (23), the first sealing plate abutting against the inner wall of the collector housing (1), the exhaust pipe (2) is fixedly mounted on one side of the first sealing plate, and a side of the exhaust pipe (2) away from the first sealing plate is sealed, the partition plate (22) and the air guide plate (23) are both fixedly mounted on the outer wall of the exhaust pipe (2), four partition plates (22) and four air guide plates (23) are provided, and the partition plates (22) and the air guide plates (23) are arranged alternately. A zigzag-shaped connecting groove (231) is provided inside the air guide plate (23), and two ends of the connecting groove (231) respectively penetrate the surfaces of two sides of the air guide plate (23). An air outlet groove (25) is provided on the outer wall of the exhaust pipe (2) and between the partition plate (22) and the air guide plate (23). A collecting structure is provided inside the collector shell (1); the collecting structure is composed of a first collecting block (3) with an arc structure and a second collecting block (4) with an arc structure. The first collecting block (3) and the second collecting block (4) are both inserted between the partition plate (22) and the air guide plate (23), and the first collecting block (3) and the second collecting block (4) are alternately provided. An air guide unit (5) is provided inside the collector shell (1); The air guide unit (5) is slidably connected to the inner wall of the collector housing (1); an air inlet hole (51) having an arc-shaped structure is provided on a side of the air guide unit (5) away from the first sealing plate; an air supply pipe (52) having an arc-shaped structure is fixedly installed on a side of the air guide unit (5) close to the first sealing plate; the air supply pipe (52) is connected to the air inlet hole (51); the air supply pipe (52) corresponds to the first collecting block (3) one by one and contacts the corresponding first collecting block (3); A second sealing plate (53) is fixedly mounted on one side of the air guide unit (5) close to the exhaust pipe (2), and a plurality of evenly distributed clearance notches (54) are provided on the second sealing plate (53). A transmission structure is provided in the collector housing (1).

2. The asymmetric diesel engine particulate filter according to claim 1, characterized in that: The transmission structure is composed of a transmission screw (6), an extrusion block (7), a connecting gear (8) and a rack (9). A fixing frame (10) is fixedly mounted on the inner wall of the collector housing (1). The transmission screw (6) is rotatably connected to the fixing frame (10). The transmission screw (6) is threadedly connected to the air guide unit (5). An end of the transmission screw (6) close to the exhaust pipe (2) extends into the exhaust pipe (2). An extrusion groove (57) is provided on the air guide unit (5). The extrusion block (7) is slidably connected to the inner wall of the collector housing (1). The extrusion block (7) penetrates the extrusion groove (57). An inclined surface (72) is provided on one side of the air pipe (2); a plurality of evenly distributed transmission teeth (71) are fixedly mounted on the bottom of the extrusion block (7); a rack (9) is fixedly mounted on a side of the air guide unit (5) away from the exhaust pipe (2); a connecting gear (8) is rotatably connected to the inner wall of the collector housing (1); the connecting gear (8) is meshed with the transmission teeth (71) and the rack (9); a first inclined surface (31) is provided on a side of the first collector block (3) close to the air guide unit (5); a second inclined surface (41) is provided on a side of the second collector block (4) close to the air guide unit (5); and a rotating structure is provided in the transmission screw (6).

3. The asymmetric diesel engine particulate filter according to claim 2, characterized in that: The rotating structure is composed of a sliding groove (61), a sliding rod (62), a first clamping block (63), and a second clamping block. The sliding groove (61) is provided on a side of the transmission screw rod (6) close to the exhaust pipe (2). The sliding rod (62) is slidably connected to the sliding groove (61). The first clamping block (63) and the second clamping block are respectively fixedly mounted on two ends of the sliding rod (62). Both the first clamping block (63) and the second clamping block extend out of the sliding groove (61). A return spring (65) is provided in the sliding groove (61). The return spring (65) contacts the sliding rod (62). A clamping groove (26) is provided on the inner wall of the exhaust pipe (2).

4. The asymmetric diesel engine particulate filter according to claim 3, characterized in that: A plurality of fixing rods (101) are fixedly mounted on the fixing frame (10), a pressing spring (102) is sleeved on the fixing rod (101), the pressing spring (102) is fixedly connected to the fixing rod (101), and a plurality of fixing grooves (56) are formed on one side of the air guide unit (5) close to the fixing rod (101), the fixing grooves (56) corresponding to the fixing rods (101) one by one.

5. The asymmetric diesel engine particulate filter according to claim 4, characterized in that: A drive mechanism is provided at one end of the collector housing (1) away from the exhaust pipe (2), the drive mechanism being fixedly connected to the transmission screw (6), a high-temperature nozzle and a high-pressure nozzle being fixedly mounted on the outer wall of the collector housing (1), and an air intake pipe (12) being fixedly connected to the collector housing (1).

6. The asymmetric diesel engine particulate filter according to claim 4, characterized in that: A side of the first clamping block (63) close to the second clamping block is rotatably connected to a ball (631).

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