Pulse dust removal device for road surface blowing machine

Abstract

The invention provides a pulse dust removal device for a road surface blowing machine, and relates to the technical field of dust removal devices, the pulse dust removal device comprises a dust removal box, two dust removal chambers are arranged in the dust removal box, a plurality of groups of filter cloth bags are equidistantly arranged in the two dust removal chambers of the dust removal box, and a mounting plate is fixed on the inner wall of the dust removal box and located at the tops of the filter cloth bags; the top of the filter cloth bag fixedly penetrates out of the mounting plate, spraying pipes are mounted at the tops of the two dust removal chambers of the dust removal box, the spraying head ends of the spraying pipes correspond to openings in the top of the filter cloth bag, a pulse device is fixedly mounted at the outer end of the dust removal box, and the two spraying pipes are communicated with the pulse device. Through cooperation of the pulse device and the cleaning assembly, dust on the outer surface of the filter cloth bag is blown off through high-pressure gas from inside to outside, wall scraping cleaning is conducted on the outer surface of the filter cloth bag through the cleaning assembly for dust with high adhesiveness, comprehensive dust removal cleaning is conducted on the filter cloth bag, and the good ventilation effect is kept.

Description

Technical Field

[0001] The invention relates to the technical field of dust removal devices, in particular to a pulse dust removal device for a road sweeper. Background Art

[0002] The working principle of the road sweeper is mainly based on the combination of mechanical and pneumatic forces. Its core components include brush system, dust suction system, high-pressure airflow nozzle and vacuum cleaner. The specific working process is as follows: Brush system: The road sweeper is equipped with a rotating brush or roller, which collects dust, garbage and debris on the road through friction with the ground. Dust suction system: When the debris swept by the brush or roller is scraped together, the dust suction system starts to work. The vacuum cleaner uses the vacuum principle to extract residual dirt and small particles on the ground. The powerful suction can suck almost all the dirt into the internal dust collection box to ensure the deep cleaning effect of the road.

[0003] For the dust suction system of the blower, the pulse dust removal technology of the existing technology is more practical. Under conventional dust removal, the pulse dust removal system can spray compressed air at high speed to the dust filter bag in a very short time, and at the same time induce air several times the amount of sprayed air to form air waves, causing the filter bag to expand and vibrate rapidly from the bag mouth to the bottom, forming a wave-like deformation of the filter bag that "bulges, deflates, and bulges" back and forth in a short period of time, causing the dust layer to deform and break, detach from the filter cloth in lumps and fall under the action of gravity, thereby self-cleaning the dust accumulated on the surface of the filter bag, maintaining the efficiency of gas passage and dust removal efficiency.

[0004] However, because pulse dust removal injects high-pressure gas into the filter bag and blows the dust out from the inside to the outside, the farther away from the air outlet, the lower the pulse dust blowing effect, and the filter bag cannot be cleaned evenly. Summary of the invention

[0005] In view of the shortcomings of the prior art, the purpose of the present invention is to provide a pulse dust removal device for a road sweeper to solve the problems raised in the above-mentioned background technology. The present invention has a novel structure. Through the cooperation of the pulse device and the cleaning component, the dust on the outer surface of the filter cloth bag is blown off from the inside to the outside by high-pressure gas. For some dust with strong adhesion, the cleaning component is used to scrape the wall of the outer surface of the filter cloth bag to clean it, and the filter cloth bag is comprehensively dusted and cleaned to maintain a good ventilation effect.

[0006] In order to achieve the above-mentioned purpose, the present invention is realized through the following technical scheme: a pulse dust removal device for a road sweeper, comprising a dust removal box, wherein two dust removal chambers are arranged inside the dust removal box, and multiple groups of filter cloth bags are arranged equidistantly inside the two dust removal chambers of the dust removal box, and the inner wall of the dust removal box is located at the top of the filter cloth bag and fixed with a mounting plate, and the top of the filter cloth bag is fixedly passed through the mounting plate, and the top of the two dust removal chambers of the dust removal box is installed with a spray pipe, and the nozzle end of the spray pipe corresponds to the top opening of the filter cloth bag, and the outer end of the dust removal box is fixedly installed with a pulse device, and the two spray pipes are connected to the pulse device The dust collecting box is connected to the dust collecting box, a dust collecting box is fixed at the bottom of the dust collecting box, and the two ash falling chambers inside the ash collecting box are connected to the two dust collecting chambers of the dust collecting box, a cleaning assembly is provided at the bottom of the filter cloth bag, and the cleaning assembly includes a bottom frame, the bottom frame slides along the inner wall of the dust collecting box, and the top of the bottom frame is provided with an outer ring corresponding to the position of each group of filter cloth bags, and the outer ring slides along the outer surface of the filter cloth bag, a circular plate is provided inside the filter cloth bag at a position parallel to the outer ring, and the circular plate slides along the inside of the filter cloth bag, two groups of inclined plates are symmetrically fixed to the open ends of the two ash falling chambers of the ash collecting box, and an opening is provided at the middle position of the two groups of inclined plates.

[0007] Furthermore, an air outlet duct is installed on the top of the dust removal box, and an air inlet duct is installed on the bottom surface of the pulse device of the dust removal box. The air outlet duct and the air inlet duct are both provided with three connectors, and the three connectors of the air outlet duct and the air inlet duct are respectively connected to the outside world and the two dust removal chambers.

[0008] Furthermore, air supply boxes are fixed to the outer surfaces of both sides of the dust removal box, one end of the air supply box is connected to the two dust removal chambers of the dust removal box, and connecting pipes are fixed to both sides of the bottom of the air supply box.

[0009] Furthermore, expansion layers are fixed on both sides of the ash collecting box, and an air cylinder is fixed inside the expansion layer at a position corresponding to the bottom of the connecting pipe. The connecting pipe is connected to one end of the air cylinder, and the other end of the air cylinder slides through the piston rod.

[0010] Furthermore, the cleaning assembly also includes a slide groove, a slide groove is opened on the inner wall of the side of the bottom of the dust removal box, and two sliders are symmetrically slidably connected inside the slide groove, the piston rod is fixedly connected to the slider, and a connecting rod is rotatably installed on the top of the slider through a rotating shaft, and the other end of the connecting rod is rotatably connected to the middle position of the side of the bottom frame through the rotating shaft.

[0011] Furthermore, two second springs are fixed in the middle of the slide slot, and the other ends of the second springs are fixedly connected to the two sliding blocks.

[0012] Furthermore, a vertical rod is fixed at the position of the circular plate on the top of the bottom frame, and the top of the vertical rod is fixedly connected to the circular plate. A vertical plate is fixed at the position of the top of the bottom frame corresponding to the outside of the outer ring, and the outer ring is fixedly connected to the vertical plate.

[0013] Furthermore, a mounting ring is fixed to the bottom of the filter cloth bag, and the vertical rod slides through the center of the mounting ring.

[0014] Furthermore, the two ash dropping chambers of the ash collecting box are located at the bottom of the inclined plate and are both slidably provided with push plates. A sliding rod is fixed on the inner walls of the two ash dropping chambers of the ash collecting box, and the push plates slide along the sliding rod. A first spring is sleeved on the surface of the sliding rod, and the two ends of the first spring are respectively fixedly connected to the inner walls of the ash dropping chamber and the push plates.

[0015] Furthermore, a pull rope is fixed on the top of the push plate, and the other end of the pull rope slides through the surface of the inclined plate on one side of the ash falling chamber, and the bottom frame is fixedly connected to the end of the pull rope passing through the inclined plate.

[0016] Beneficial effects of the present invention:

[0017] 1. When the bottom frame of the present invention is located at the bottom of the dust removal chamber, the pull rope has no traction on the push plate. Under the action of the first spring force, the push plate slides to the extreme right along the slide rod, pushing part of the dust in the ash falling chamber to the right and squeezing it. When the bottom frame moves upward, the pull rope pulls the push plate to move to the left, and the push plate pushes and squeezes another part of the dust to the left at this time, so that the dust falling on the inclined plate is distributed to the bottom of the inclined plates on both sides and squeezed together, which can prevent the dust in the ash falling chamber from escaping again during the air intake dust removal and pulse self-cleaning process. Because the device is installed on a road sweeper for use, the cleaned dust cannot be taken out immediately, and the ash collecting box has a certain storage function.

[0018] 2. The present invention is connected to the bottom frame by vertical rods and vertical plates, so that the circular plate and the outer ring can move inside and outside the filter cloth bag. The bottom of the filter cloth bag is connected to the mounting ring, so the circular plate can be kept at the bottom of the filter cloth bag without interfering with the use of the filter cloth bag. At the same time, during cleaning, the synchronous movement of the circular plate and the outer ring can be facilitated. The vertical rods and vertical plates at the bottom of the filter cloth bag can be selected to be thinner in shape to avoid affecting the air intake.

[0019] 3. After the gas is injected into the air cylinder, the piston rod moves backward, pushing the slider to slide along the slide groove, and the bottom frame is lifted upward by the connecting rod, and then the outer ring and the circular plate move along the outside and inside of the filter cloth bag. Because the filter cloth bag itself is made of soft material, the outer ring directly contacts with the filter cloth bag and the filter cloth bag may be deformed, resulting in poor cleaning effect. The filter cloth bag is supported from the inside by the circular plate, so that the outer ring can fully contact the outer surface of the filter cloth bag to scrape off the dust on the outer surface of the filter cloth bag. When the high-pressure gas in the air cylinder is extracted through the air supply box, the second spring will also drive the slider to move to both sides, and the bottom frame drives the outer ring and the circular plate to move toward the bottom of the filter cloth bag. In this cycle, the entire surface of the filter cloth bag can be efficiently and evenly cleaned, and the cleaning power comes from the high-pressure gas generated by the pulse dust removal.

[0020] 4. The connector of the present invention, which is connected to the dust removal chamber through the air outlet pipe and the air inlet pipe, is equipped with an electromagnetic valve, which can control opening and closing. The two dust removal chambers can be used separately. When one side is in use, the dust removal chamber on the other side can clean the filter bag, so that the road sweeper can be used continuously.

[0021] 5. Compared with the prior art, the present invention uses the cooperation of the pulse device and the cleaning component to blow the dust on the outer surface of the filter bag from the inside to the outside through high-pressure gas. For some dust with strong adhesion, the cleaning component scrapes the outer surface of the filter bag to clean it, and the filter bag is comprehensively dusted and cleaned to maintain a good ventilation effect. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] Figure 1 It is a schematic diagram of the overall structure of a pulse dust removal device for a road sweeper of the present invention;

[0023] Figure 2 A schematic diagram of the internal structure of a dust removal box of a pulse dust removal device for a road sweeper according to the present invention;

[0024] Figure 3 A schematic diagram of the connection between a filter bag and a cleaning component of a pulse dust removal device for a road sweeper of the present invention;

[0025] Figure 4 A schematic diagram of the connection between a cleaning component and a dust collecting box of a pulse dust removal device for a road sweeper of the present invention;

[0026] Figure 5 It is a schematic diagram of the structure of a cleaning component of a pulse dust removal device for a road sweeper of the present invention;

[0027] Figure 6 This is a schematic diagram of the connection between the piston rod and the bottom frame of a pulse dust removal device for a road sweeper of the present invention;

[0028] Figure 7 A schematic diagram of the connection between the air cylinder and the piston rod of a pulse dust removal device for a road sweeper of the present invention;

[0029] Figure 8 The present invention is a schematic diagram of the internal structure of a dust collecting box of a pulse dust removal device for a road sweeper.

[0030] In the figure: 1. dust box; 11. air outlet duct; 12. air inlet duct; 2. dust collecting box; 21. expansion layer; 22. inclined plate; 23. push plate; 24. slide bar; 25. first spring; 26. pull rope; 3. filter bag; 31. mounting plate; 4. pulse device; 41. injection pipe; 5. cleaning assembly; 51. bottom frame; 52. vertical rod; 53. vertical plate; 54. outer ring; 55. round plate; 56. slide groove; 57. connecting rod; 58. second spring; 59. slide block; 510. piston rod; 511. air cylinder; 512. mounting ring; 6. air supply box; 61. connecting pipe. DETAILED DESCRIPTION

[0031] In order to make the technical means, creative features, objectives and effects achieved by the present invention easy to understand, the present invention is further explained below in conjunction with specific implementation methods.

[0032] See also Figures 1 to 8 The present invention provides a technical solution: a pulse dust removal device for a road sweeper, comprising a dust removal box 1, wherein two dust removal chambers are arranged inside the dust removal box 1, and multiple groups of filter cloth bags 3 are equidistantly arranged inside the two dust removal chambers of the dust removal box 1, and a mounting plate 31 is fixedly arranged on the inner wall of the dust removal box 1 at the top of the filter cloth bag 3, and the top of the filter cloth bag 3 is fixedly passed through the mounting plate 31, and injection pipes 41 are installed on the tops of the two dust removal chambers of the dust removal box 1, and the nozzle ends of the injection pipes 41 correspond to the top openings of the filter cloth bags 3, a pulse device 4 is fixedly installed on the outer end of the dust removal box 1, and the two injection pipes 41 are connected to the pulse device 4, a dust collection box 2 is fixedly arranged at the bottom of the dust removal box 1, and the two dust falling chambers inside the dust collection box 2 are connected to the two dust removal chambers of the dust removal box 1, and a cleaning component 5 is provided at the bottom of the filter cloth bag 3, and the cleaning component 5 includes The bottom frame 51 slides along the inner wall of the dust removal box 1, and an outer ring 54 is provided at the top of the bottom frame 51 corresponding to the position of each group of filter cloth bags 3, and the outer ring 54 slides along the outer surface of the filter cloth bag 3, and a circular plate 55 is provided inside the filter cloth bag 3 at a position parallel to the outer ring 54, and the circular plate 55 slides along the inside of the filter cloth bag 3, and two groups of inclined plates 22 are symmetrically fixed at the opening ends of the two ash falling chambers of the ash collecting box 2, and an opening is provided in the middle position of the two groups of the inclined plates 22. When using the device, the device is installed on a road sweeper, and the two dust removal chambers of the dust removal box 1 are used alternately. The filter cloth bags 3 filter the incoming air and send it out through the outlet pipe 11. The filtered large particles of dust fall directly into the inside of the ash falling chamber, and the dust accumulated on the surface of the filter cloth bag 3 is cleaned by the cooperation of the pulse device 4 and the cleaning component 5 to maintain its ventilation fluency.

[0033] In this embodiment, an air outlet pipe 11 is installed on the top of the dust removal box 1, and an air inlet pipe 12 is installed on the bottom surface of the pulse device 4 of the dust removal box 1. The air outlet pipe 11 and the air inlet pipe 12 are both provided with three connectors, and the three connectors of the air outlet pipe 11 and the air inlet pipe 12 are respectively connected to the outside and the two dust removal chambers. The connectors connecting the air outlet pipe 11 and the air inlet pipe 12 to the dust removal chambers are installed with solenoid valves that can be controlled to open and close. The two dust removal chambers can be used separately. When one side is in use, the dust removal chamber on the other side can clean the filter bag 3 to keep the road sweeper in continuous use.

[0034] In this embodiment, air supply boxes 6 are fixed to the outer surfaces of both sides of the dust removal box 1, one end of the air supply box 6 is connected to the two dust removal chambers of the dust removal box 1, and connecting pipes 61 are fixed to both sides of the bottom of the air supply box 6, expansion layers 21 are fixed to both sides of the ash collection box 2, and an air cylinder 511 is fixed to the position corresponding to the bottom of the connecting pipe 61 inside the expansion layer 21, the connecting pipe 61 is connected to one end of the air cylinder 511, and the other end of the air cylinder 511 slides out of the piston rod 510, the cleaning component 5 also includes a slide groove 56, and a slide groove 56 is opened on the inner wall of the side edge of the bottom of the dust removal box 1, and the slide groove 56 is fixed to the inner wall of the side edge of the dust removal box 1. There are two sliders 59 symmetrically slidably connected inside the groove 56, the piston rod 510 is fixedly connected to the slider 59, the top of the slider 59 is rotatably mounted with a connecting rod 57 through a rotating shaft, and the other end of the connecting rod 57 is rotatably connected to the middle position of the side of the bottom frame 51 through a rotating shaft, two second springs 58 are fixed in the middle of the slide groove 56, and the other end of the second spring 58 is fixedly connected to the two sliders 59, the air supply box 6 also has three openings, one of which is connected to the outside world for directly discharging the high-pressure gas generated by the pulse dust removal to maintain the air pressure balance in the dust removal box 1, and the other The opening is connected to the dust removal chamber, and the last one is connected to the connecting pipe 61. The opening connected to the dust removal chamber and the connecting pipe 61 is controlled to open and close by a solenoid valve. The high-pressure gas in the dust removal chamber can be extracted through the air box 6 and sent to the inside of the air cylinder 511 through the connecting pipe 61. After the air is injected into the air cylinder 511, the piston rod 510 moves backward, pushing the slider 59 to slide along the slide groove 56, and the bottom frame 51 is lifted up by the connecting rod 57, so that the outer ring 54 and the circular plate 55 move along the outside and inside of the filter cloth bag 3. Because the filter cloth bag 3 itself is made of soft material, the outer ring 54 is directly connected to it. The filter bag 3 may be deformed, resulting in poor cleaning effect. The filter bag 3 is supported from the inside by the circular plate 55, so that the outer ring 54 can fully contact the outer surface of the filter bag 3 to scrape off the dust on the outer surface of the filter bag 3. When the high-pressure gas in the air cylinder 511 is extracted through the air supply box 6, the second spring 58 will also tend to move the slider 59 to both sides, and the bottom frame 51 drives the outer ring 54 and the circular plate 55 to move toward the bottom of the filter bag 3. This cycle can efficiently and evenly clean the entire surface of the filter bag 3, and the cleaning power comes from the high-pressure gas generated by the pulse dust removal.

[0035] The top of the vertical rod 52 is fixed with the circular plate 55 at the position corresponding to the circular plate 55 on the top of the bottom frame 51, and the top of the vertical rod 52 is fixedly connected to the circular plate 55, and the top of the bottom frame 51 is fixed with a vertical plate 53 at the position corresponding to the outside of the outer ring 54 on the top of the bottom frame 51, and the outer ring 54 is fixedly connected to the vertical plate 53, and the bottom of the filter cloth bag 3 is fixed with a mounting ring 512, and the vertical rod 52 slides through the center of the mounting ring 512, and the vertical rod 52 and the vertical plate 53 are connected to the bottom frame 51, so that the circular plate 55 and the outer ring 54 can move along the inside and outside of the filter cloth bag 3, and the bottom of the filter cloth bag 3 is connected to the mounting ring 512, so that the circular plate 55 can be kept at the bottom of the filter cloth bag 3 without interfering with the use of the filter cloth bag 3. At the same time, when cleaning, the synchronous movement of the circular plate 55 and the outer ring 54 can be facilitated, and the vertical rod 52 and the vertical plate 53 located at the bottom of the filter cloth bag 3 can be selected to be thinner in shape to avoid affecting the air intake.

[0036] In this embodiment, the two ash dropping chambers of the ash collecting box 2 are located at the bottom of the inclined plate 22 and are slidably provided with push plates 23. Slide rods 24 are fixed on the inner walls of the two ash dropping chambers of the ash collecting box 2, and the push plates 23 slide along the slide rods 24. A first spring 25 is sleeved on the surface of the slide rod 24, and the two ends of the first spring 25 are respectively fixedly connected to the inner wall of the ash dropping chamber and the push plates 23. A pull rope 26 is fixed on the top of the push plate 23, and the other end of the pull rope 26 slides through the surface of the inclined plate 22 on one side of the ash dropping chamber. The bottom frame 51 is fixedly connected to one end of the pull rope 26 passing through the inclined plate 22. When the bottom frame 51 is located at the bottom of the dust removal chamber, the pull rope 26 has no pulling effect on the push plate 23. The push plate 23 pushes and squeezes another part of the dust to the left side, so that the dust falling on the inclined plate 22 is distributed at the bottom of the inclined plate 22 on both sides and squeezed together, which can prevent the dust in the ash falling chamber from escaping again during the air intake dust removal and pulse self-cleaning process. Because the device is installed on a road sweeper for use, the cleaned dust cannot be taken out immediately. The ash collecting box 2 has a certain storage function.

[0037] When using the device, it is installed on the road sweeper. The connector connecting the air outlet duct 11 and the air inlet duct 12 with the dust removal chamber is installed with a solenoid valve, which can control opening and closing. The two dust removal chambers can be used separately. When one side is used, the dust removal chamber on the other side can clean the filter bag 3 to keep the road sweeper in continuous use. The filter bag 3 filters the incoming air and sends it out through the air outlet duct 11. The filtered large particles of dust fall directly into the dust collection chamber. Through the cooperation of the pulse device 4 and the cleaning component 5, the dust is sent out through the dust collection chamber. The bellows 6 extracts the high-pressure gas in the dust removal chamber and sends it into the air cylinder 511 through the connecting pipe 61. After the air is injected into the air cylinder 511, the piston rod 510 moves backward, pushing the slider 59 to slide along the slide groove 56, and the bottom frame 51 is lifted upward through the connecting rod 57, so that the outer ring 54 and the circular plate 55 move along the outside and inside of the filter cloth bag 3. Because the filter cloth bag 3 itself is made of soft material, the outer ring 54 directly contacts the filter cloth bag 3 and may be deformed, resulting in poor cleaning effect. The filter cloth bag 3 is supported from the inside by the circular plate 55, so that The outer ring 54 can fully contact the outer surface of the filter cloth bag 3 to scrape off the dust on the outer surface of the filter cloth bag 3. When the high-pressure gas in the air cylinder 511 is extracted through the air supply box 6, the second spring 58 will also drive the slider 59 to move to both sides, and the bottom frame 51 drives the outer ring 54 and the circular plate 55 to move to the bottom of the filter cloth bag 3. This cycle can efficiently and evenly clean the entire surface of the filter cloth bag 3, clean the dust accumulated on the surface of the filter cloth bag 3, and maintain the smoothness of ventilation. When the bottom frame 51 is at the bottom of the dust removal chamber, the rope 26 has no traction on the push plate 23. Under the action of the elastic force of the first spring 25, the push plate 23 slides to the far right along the slide rod 24, pushing part of the dust in the ash falling chamber to the right and squeezing it. When the bottom frame 51 moves upward, the pull rope 26 pulls the push plate 23 to move to the left. At this time, the push plate 23 pushes and squeezes the other part of the dust to the left, so that the dust falling from the inclined plate 22 is distributed at the bottom of the inclined plates 22 on both sides and squeezed together, which can prevent the dust in the ash falling chamber from escaping again during the air intake dust removal and pulse self-cleaning process.

[0038] The basic principles and main features of the present invention and the advantages of the present invention are shown and described above. For those skilled in the art, it is obvious that the present invention is not limited to the details of the above exemplary embodiments, and the present invention can be implemented in other specific forms without departing from the spirit or basic characteristics of the present invention.

[0039] In addition, it should be understood that although the present specification is described according to implementation modes, not every implementation mode contains only one independent technical solution. This description of the specification is only for the sake of clarity. Those skilled in the art should regard the specification as a whole. The technical solutions in each embodiment may also be appropriately combined to form other implementation modes that can be understood by those skilled in the art.

Claims

1. A pulse dust removal device for a road sweeper, comprising a dust removal box (1), characterized in that: The dust removal box (1) is provided with two dust removal chambers inside, and multiple groups of filter cloth bags (3) are arranged at equal intervals inside the two dust removal chambers of the dust removal box (1), and a mounting plate (31) is fixed on the inner wall of the dust removal box (1) at the top of the filter cloth bag (3), and the top of the filter cloth bag (3) is fixedly passed through the mounting plate (31), and the top of the two dust removal chambers of the dust removal box (1) are installed with injection pipes (41), and the nozzle end of the injection pipe (41) corresponds to the top opening of the filter cloth bag (3), and a pulse device (4) is fixedly installed at the outer end of the dust removal box (1), and the two injection pipes (41) are connected to the pulse device (4), and a dust collection box (2) is fixed at the bottom of the dust removal box (1), and two dust collection boxes (2) are installed inside the dust collection box (2). The dust falling chamber is connected to the two dust removal chambers of the dust removal box (1); a cleaning assembly (5) is provided at the bottom of the filter cloth bag (3); the cleaning assembly (5) comprises a bottom frame (51); the bottom frame (51) slides along the inner wall of the dust removal box (1); an outer ring (54) is provided at the top of the bottom frame (51) corresponding to the position of each group of filter cloth bags (3); and the outer ring (54) slides along the outer surface of the filter cloth bag (3); a circular plate (55) is provided inside the filter cloth bag (3) at a position parallel to the outer ring (54); and the circular plate (55) slides along the inside of the filter cloth bag (3); two groups of inclined plates (22) are symmetrically fixed at the open ends of the two dust falling chambers of the dust collection box (2); and an opening is provided at the middle position of the two groups of inclined plates (22).

2. The pulse dust removal device for a road sweeper according to claim 1, characterized in that: An air outlet pipe (11) is installed on the top of the dust removal box (1), and an air inlet pipe (12) is installed on the bottom surface of the dust removal box (1) located on the pulse device (4), and the air outlet pipe (11) and the air inlet pipe (12) are both provided with three connectors, and the three connectors of the air outlet pipe (11) and the air inlet pipe (12) are respectively connected to the outside and the two dust removal chambers.

3. The pulse dust removal device for a road sweeper according to claim 1, characterized in that: Air supply boxes (6) are fixed to the outer surfaces of both sides of the dust removal box (1), one end of the air supply box (6) is connected to the two dust removal chambers of the dust removal box (1), and connecting pipes (61) are fixed to both sides of the bottom of the air supply box (6).

4. The pulse dust removal device for a road sweeper according to claim 3, characterized in that: An expansion layer (21) is fixed on both sides of the ash collecting box (2), and an air cylinder (511) is fixed inside the expansion layer (21) at a position corresponding to the bottom of the connecting pipe (61), the connecting pipe (61) is connected to one end of the air cylinder (511), and the other end of the air cylinder (511) slides through the piston rod (510).

5. The pulse dust removal device for a road sweeper according to claim 4, characterized in that: The cleaning assembly (5) also includes a slide groove (56), and a slide groove (56) is opened on the inner wall of the side of the bottom of the dust removal box (1), and two sliders (59) are symmetrically slidably connected inside the slide groove (56), the piston rod (510) is fixedly connected to the slider (59), and a connecting rod (57) is rotatably installed on the top of the slider (59) through a rotating shaft, and the other end of the connecting rod (57) is rotatably connected to the middle position of the side of the bottom frame (51) through a rotating shaft.

6. The pulse dust removal device for a road sweeper according to claim 5, characterized in that: Two second springs (58) are fixed in the middle of the sliding groove (56), and the other ends of the second springs (58) are fixedly connected to two sliding blocks (59).

7. The pulse dust removal device for a road sweeper according to claim 6, characterized in that: A vertical rod (52) is fixed at a position on the top of the bottom frame (51) corresponding to the circular plate (55), and the top of the vertical rod (52) is fixedly connected to the circular plate (55). A vertical plate (53) is fixed at a position on the top of the bottom frame (51) corresponding to the outside of the outer ring (54), and the outer ring (54) is fixedly connected to the vertical plate (53).

8. The pulse dust removal device for a road sweeper according to claim 7, characterized in that: A mounting ring (512) is fixed to the bottom of the filter cloth bag (3), and the vertical rod (52) slides through the center of the mounting ring (512).

9. The pulse dust removal device for a road sweeper according to claim 1, characterized in that: The two ash dropping chambers of the ash collecting box (2) are located at the bottom of the inclined plate (22) and are both slidably provided with push plates (23). A sliding rod (24) is fixed on the inner wall of the two ash dropping chambers of the ash collecting box (2), and the push plates (23) slide along the sliding rod (24). A first spring (25) is sleeved on the surface of the sliding rod (24), and the two ends of the first spring (25) are respectively fixedly connected to the inner wall of the ash dropping chamber and the push plates (23).

10. The pulse dust removal device for a road sweeper according to claim 9, characterized in that: A pull rope (26) is fixed to the top of the push plate (23), and the other end of the pull rope (26) slides through the surface of the inclined plate (22) on one side of the ash falling chamber, and the bottom frame (51) is fixedly connected to the end of the pull rope (26) passing through the inclined plate (22).

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