A wet spray trolley dust suppression device

Abstract

This invention provides a dust suppression device for a wet spraying trolley, relating to the field of construction equipment technology. It includes a base, a support frame mounted on the base, and a rotating mechanism for driving the support frame to rotate. A dust suppression hood and a driving assembly for moving the dust suppression hood along the length of the support frame are mounted on the support frame. A connecting mechanism is provided on the dust suppression hood, and a suction mechanism is provided on the base. The connecting mechanism includes a connecting pipe, a connecting plate, and a connecting frame. A notch is formed in the dust suppression hood, and the connecting frame is slidably disposed within the notch along its length. The connecting plate is slidably disposed within the connecting frame along the width of the notch. The suction mechanism includes a fan, a transfer box, and a suction pipe. The fan duct is connected to the top of the transfer box, and the suction pipe is disposed between the transfer box and the dust suppression hood. This invention can conveniently suppress dust at the sprayed location during spraying, thereby avoiding the impact of dust on the environment and human health.

Description

Technical Field

[0001] This invention relates to the field of construction equipment technology, and more specifically, to a wet spraying trolley dust suppression device. Background Technology

[0002] A wet shotcrete trolley uses compressed air to propel concrete mixed with a specific water-cement ratio through a delivery pipe and the nozzle of a shotcrete machine at high speed, forming a concrete support layer on the sprayed surface. It is a key piece of equipment in shotcrete construction. Due to its advantages such as saving concrete, reducing labor, increasing construction efficiency, and lowering project costs, wet shotcrete trolleys are becoming increasingly common and are widely used in railway, highway, and water conservancy construction projects. They have become ideal construction machinery for solving temporary and permanent support problems in tunnels, road slopes, building foundations, and underground engineering.

[0003] Currently, a large amount of dust is generated during concrete spraying operations, causing environmental pollution and harming human health. Since the nozzle of the wet spraying trolley is at a certain distance from the sprayed surface during the spraying operation, it is not convenient to carry out dust suppression treatment for the dust generated during the spraying process. Summary of the Invention

[0004] The purpose of this invention is to provide a wet spraying trolley dust suppression device, which can conveniently suppress dust at the sprayed location during the spraying process, thereby avoiding the impact of dust on the environment and human health.

[0005] The present invention is achieved through the following technical solution: a dust suppression device for a wet spraying trolley, comprising a base, a support frame and a rotating mechanism for driving the support frame to rotate, a dust suppression hood and a driving component for driving the dust suppression hood to move along the length direction of the support frame, a connecting mechanism for connecting to the nozzle of the wet spraying trolley on the dust suppression hood, and a suction mechanism for creating a negative pressure state inside the dust suppression hood on the base;

[0006] The connecting mechanism includes a connecting pipe, a connecting plate, and a connecting frame. The dust cover has a notch. The connecting frame is slidably disposed within the notch along the length of the notch. The connecting plate is slidably disposed within the connecting frame along the width of the notch. The connecting pipe is tapered, and one end of the connecting pipe passes through the connecting plate and extends into the dust cover. The area of ​​the end of the connecting pipe inside the dust cover is larger than the area of ​​the end of the connecting pipe outside the dust cover. Multiple connecting bolts are distributed circumferentially at the end of the connecting pipe outside the dust cover.

[0007] The suction mechanism includes a fan, a transfer box, and a suction pipe. The transfer box is mounted on a base and contains a dissolving liquid. The fan is located on one side of the transfer box, and its duct is connected to the top of the transfer box. One end of the suction pipe is connected to one side of the transfer box, and the other end is connected to a dust cover.

[0008] Furthermore, a first conical hopper is provided at one end of the suction pipe that is connected to the dust hood, and a second conical hopper is provided at the other end of the suction pipe located inside the transfer box. A partition is provided inside the transfer box, which divides the interior of the transfer box into a first chamber and a second chamber. An opening and closing component for connecting or separating the first chamber and the second chamber is provided at the bottom of the partition.

[0009] Furthermore, the opening and closing assembly includes an electric cylinder and an opening and closing plate. The opening and closing plate is slidably disposed on one side of the partition in a vertical direction. The cylinder barrel of the electric cylinder is fixedly disposed on the partition, and the piston rod of the electric cylinder is fixedly connected to the top of the opening and closing plate.

[0010] Furthermore, the second conical hopper is located within the first chamber, with its open end facing the bottom wall of the first chamber. An isolation mesh is provided below the second conical hopper, and a counterweight frame is provided at the bottom of the isolation mesh, with the counterweight frame located below the liquid level in the first chamber.

[0011] Furthermore, both sides of the connecting frame are connected to the ends of the notch with accordion-style baffles, and both sides of the connecting plate are connected to the connecting frame with elastic films.

[0012] Furthermore, the dust hood is provided with a dust discharge port, and a retaining mesh plate is provided inside the dust discharge port. A retaining strip is provided on the inner wall of the dust hood near the first conical hopper, and the retaining strip extends upward at an angle.

[0013] Furthermore, drive seats are provided on both outer sides of the dust hood, and drive cylinders are provided on the drive seats. Drive blocks are provided on the piston rods of the drive cylinders, and the two drive blocks are respectively fixed on both sides of the dust hood. The drive assembly includes a drive motor, a lead screw, and a guide rod. The length direction of the lead screw and the guide rod is consistent with the length direction of the support frame and is located on both sides of the support frame. One drive seat is threaded to the lead screw, and the other drive seat is slidably connected to the guide rod. The drive motor is fixedly mounted on the support frame, and the output shaft of the drive motor is fixedly connected to the lead screw.

[0014] Furthermore, the drive seat includes a first support and a second support rotatably connected to the first support. A torsion spring connects the first support and the second support. A positioning element is provided on the first support. The positioning element includes a support block, a clamping spring, a positioning block, and a positioning rod. The support block is fixedly disposed on the first support. The positioning block is slidably disposed on one side of the support block. The clamping spring is connected between the support block and the positioning block. The positioning rod is disposed on the side of the positioning block away from the support block. A positioning seat is provided on the second support. The positioning seat has a positioning hole for inserting the positioning rod.

[0015] Furthermore, both sides of the support frame are provided with a release element for driving the positioning block to move away from the positioning seat. The release element includes a sliding seat, which is slidably disposed on the support frame along the length direction of the support frame. A clamping bolt for abutting against the support frame is provided on the side of the sliding seat outside the support frame. A release rod is provided on the side of the sliding seat inside the support frame. A release block is provided at the bottom of the release rod. An arc-shaped chamfer is provided at the end of the release block facing the positioning block.

[0016] Furthermore, a flipping component for driving the dust cover to flip is provided between the two sliding seats. The flipping component includes an arc-shaped pressing rod and two rotating rods. The two rotating rods are respectively rotatably connected to the opposite sides of the two sliding seats. The arc-shaped pressing rod is detachably connected between the two rotating rods. A rotating component is provided on one of the sliding seats. The rotating component includes a rotating motor, a driving gear, and a driven gear. The rotating motor is fixedly mounted on the sliding seat. The driving gear is mounted on the output shaft of the rotating motor. The driven gear is coaxially connected to one of the rotating rods and meshes with the driving gear. A touch switch is provided at the end of the loosening block away from the positioning block. When the positioning block abuts against the touch switch, the rotating motor can be turned on.

[0017] The technical solution of the present invention has at least the following advantages and beneficial effects:

[0018] 1. This invention uses a dust suppression hood to isolate the area outside the spray point, preventing dust generated during spraying from drifting outwards and thus avoiding its impact on the environment and human health. By setting up a suction mechanism to create a negative pressure state inside the dust suppression hood, the dust accumulated inside the hood is drawn through the suction pipe into the transfer box and dissolved in the dissolving liquid, thereby reducing the dust content in the gas extracted by the exhaust fan from the transfer box.

[0019] 2. The present invention drives the drive base through a drive component, so that the dust cover can move as a whole along the length of the support frame. This allows the dust cover to be moved to the next spray point after spraying one spray point. By setting a drive cylinder and a drive block on the drive base, the drive cylinder drives the drive block to move, which can move the dust cover closer to or away from the sprayed surface, so as to adjust the distance between the dust cover and the sprayed surface.

[0020] 3. The present invention uses a first support and a second support to form a drive seat, and fixes the relative positions of the first support and the second support by a positioning component and a positioning seat to ensure the stability of the drive seat during movement; the loosening component drives the positioning component to move out of the positioning seat, and the flipping component presses the dust cover, so that when the inclined surface of the slope needs to be sprayed after the inclined surface of the slope is sprayed, the tilt angle of the dust cover can be changed to adapt to the change of the spray position angle. Attached Figure Description

[0021] Figure 1 This is a schematic diagram of the overall structure of the present invention;

[0022] Figure 2 This is a schematic diagram of the support frame, dust cover, and suction mechanism of the present invention;

[0023] Figure 3 This is a schematic diagram of the suction mechanism of the present invention;

[0024] Figure 4 This is a schematic diagram of the structure of the suction pipe, dust cover, and support frame of the present invention;

[0025] Figure 5 This is a schematic diagram of the connecting mechanism, drive seat, loosening component, flipping component, and dust cover of the present invention.

[0026] Figure 6 This is a schematic diagram of the connecting mechanism of the present invention inside the dust cover;

[0027] Figure 7 This is a schematic diagram of the structure of the drive seat, the release component, and the flipping component of the present invention;

[0028] Figure 8 This is a schematic diagram of the structure of the drive seat of the present invention;

[0029] Reference numerals: 1-Base, 2-Support frame, 21-Rotating mechanism, 3-Dust hood, 31-Notch, 32-Dust outlet, 33-Intercepting mesh plate, 34-Intercepting strip, 4-Drive assembly, 41-Drive motor, 42-Screw, 43-Guide rod, 5-Connecting mechanism, 51-Connecting pipe, 52-Connecting plate, 521-Elastic membrane, 53-Connecting frame, 531-Bellarm baffle, 54-Connecting bolt, 6-Suction mechanism, 61-Exhaust fan, 62-Transfer box, 621-Baffle plate, 622-First chamber, 623-Second chamber, 624-Opening and closing assembly, 6241-Opening and closing electric cylinder, 6242-Opening and closing plate, 63-Suction pipe, 631-First cone Bucket, 632-Second conical bucket, 633-Isolation net, 634-Counterweight frame, 7-Drive seat, 701-First support, 702-Second support, 703-Torsion spring, 71-Drive electric cylinder, 72-Drive block, 73-Positioning component, 731-Support block, 732-Pressure spring, 733-Positioning block, 734-Positioning rod, 74-Positioning seat, 8-Loosening component, 81-Sliding seat, 82-Pressure bolt, 83-Loosening rod, 84-Loosening block, 841-Arc chamfer, 842-Touch switch, 9-Flipping component, 91-Arc-shaped pressing rod, 92-Rotating rod, 93-Rotating component, 931-Rotating motor, 932-Drive gear, 933-Driven gear. Detailed Implementation

[0030] To make the objectives, technical solutions, and advantages of the embodiments of the present invention clearer, the technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. The components of the embodiments of the present invention described and shown in the accompanying drawings can generally be arranged and designed in various different configurations.

[0031] Therefore, the following detailed description of the embodiments of the invention provided in the accompanying drawings is not intended to limit the scope of the claimed invention, but merely to illustrate selected embodiments of the invention. All other embodiments obtained by those skilled in the art based on the embodiments of the invention without inventive effort are within the scope of protection of the invention.

[0032] Example

[0033] The following is for reference Figures 1-8As shown in the illustration, and further explained with reference to a specific embodiment, this embodiment provides a dust suppression device for a wet spraying trolley, including a base 1. A support frame 2 and a rotating mechanism 21 for driving the support frame 2 to rotate are mounted on the base 1. A dust suppression hood 3 and a driving assembly 4 for driving the dust suppression hood 3 to move along the length of the support frame 2 are mounted on the support frame 2. A connecting mechanism 5 for connecting to the nozzle of the wet spraying trolley is mounted on the dust suppression hood 3. A suction mechanism 6 for creating a negative pressure state inside the dust suppression hood 3 is also mounted on the base 1. Before wet spraying, the base 1 is moved to a designated position, and the angle of the support frame 2 is adjusted by the rotating mechanism 21. The dust suppression hood 3 is then moved along the length of the support frame 2 to the position where the spraying operation will take place. The connecting mechanism 5 is then connected to the nozzle of the wet spraying trolley, and the spraying unit of the concrete wet spraying trolley is started, enabling wet spraying operations on the sprayed point. During the operation, the dust suppression hood 3 covers the outside of the sprayed point, providing an isolation effect to prevent dust generated during spraying from drifting outwards, thereby avoiding the impact of dust on the environment and personnel health. In this embodiment, the rotating mechanism 21 is a worm gear mechanism. The worm gear mechanism has the advantages of large transmission ratio, smooth transmission and compact structure, and has a self-locking function, which can keep the support frame at a specified angle after adjustment.

[0034] Reference Figure 2 , Figure 3 As shown, the suction mechanism 6 includes a fan 61, a transfer box 62, and a suction pipe 63. The transfer box 62 is mounted on the base 1 and contains a dissolving solution. The fan 61 is mounted on one side of the transfer box 62, and its duct is connected to the top of the transfer box 62. One end of the suction pipe 63 is connected to one side of the transfer box 62, and the other end is connected to the dust hood 3. The fan 61 is activated to draw air from the transfer box 62, creating a negative pressure inside. The suction pipe 63 then draws air from the dust hood 3 into the transfer box 62, creating a negative pressure environment. This allows dust accumulated in the dust hood 3 to enter the transfer box 62 through the suction pipe 63 and dissolve in the dissolving solution. In this embodiment, salt water is used as the dissolving solution. In other embodiments, an ethanol solution can also be used, as long as it improves the dissolution efficiency of the dust.

[0035] Reference Figure 3 , Figure 4As shown, the suction pipe 63 has a first conical hopper 631 at one end connected to the dust hood 3, and a second conical hopper 632 at the other end of the suction pipe 63 inside the transfer box 62. The transfer box 62 has a partition 621 that divides the interior of the transfer box 62 into a first chamber 622 and a second chamber 623. The bottom of the partition 621 has an opening / closing assembly 624 for connecting or separating the first chamber 622 and the second chamber 623. The opening / closing assembly 624 includes an electric cylinder 6241 and an opening / closing plate 6242. The opening / closing plate 6242 is slidably disposed on one side of the partition 621 in a vertical direction. The cylinder of the electric cylinder 6241 is fixedly disposed on the partition 621, and the piston rod of the electric cylinder 6241 is fixedly connected to the top of the opening / closing plate 6242. In use, the second chamber 623 is filled with dissolving liquid. Then, the opening and closing electric cylinder 6241 is opened to move the opening and closing plate 6242 upward, so that the first chamber 622 and the second chamber 623 are connected, allowing some of the dissolving liquid to flow from the second chamber 623 into the first chamber 622. Then, the opening and closing electric cylinder 6241 moves the opening and closing plate 6242 downward to isolate the first chamber 622 from the second chamber 623. Dust enters the dissolving liquid in the first chamber 622 through the second conical hopper 632. When a large amount of dust has dissolved in the dissolving liquid, the dissolving liquid in the first chamber 622 is discharged, and the opening and closing plate 6242 is opened again to allow some of the dissolving liquid to flow from the second chamber 623 into the first chamber 622, so as to replace the dissolving liquid in the first chamber 622 and avoid reducing the dissolving effect on the dust.

[0036] Reference Figure 3 As shown, the second conical hopper 632 is located within the first chamber 622, with its opening facing the bottom wall of the first chamber 622. A separating mesh 633 is positioned below the second conical hopper 632, and a counterweight frame 634 is located at the bottom of the separating mesh 633, below the liquid level in the first chamber 622. The separating mesh 633 effectively blocks dust, ensuring that dust remains within the space enclosed by the mesh 633 and dissolves in the liquid, preventing it from spreading to other areas within the transfer box 62 and thus avoiding the exhaust fan 61 drawing dust directly out with the air. The counterweight frame 634 keeps the separating mesh 633 taut under tension, preventing deformation under negative pressure and ensuring optimal performance.

[0037] Reference Figure 5 , Figure 6As shown, the connecting mechanism 5 includes a connecting pipe 51, a connecting plate 52, and a connecting frame 53. A notch 31 is provided on the dust cover 3. The connecting frame 53 is slidably disposed within the notch 31 along the length direction of the notch 31. Both sides of the connecting frame 53 are connected to the ends of the notch 31 with bellows-type baffles 531. The connecting plate 52 is slidably disposed within the connecting frame 53 along the width direction of the notch 31. Both sides of the connecting plate 52 are connected to the connecting frame 53 with elastic films 521. The connecting pipe 51 is tapered, and one end of the connecting pipe 51 passes through the connecting plate 52 and extends into the dust cover 3. The area of ​​the end of the connecting pipe 51 inside the dust cover 3 is larger than the area of ​​the end of the connecting pipe 51 outside the dust cover 3. Multiple connecting bolts 54 are distributed circumferentially at the end of the connecting pipe 51 outside the dust cover 3. The smallest diameter end of the connecting pipe 51 is connected to the nozzle by the connecting bolt 54. Since the diameter of the connecting pipe 51 gradually increases from the end outside the dust hood 3 to the end inside the dust hood 3, it can adapt to the divergent concrete jet during spraying. The connecting frame 53 can slide relative to the dust hood 3 along the length direction of the notch 31, and the connecting plate 52 can slide relative to the connecting frame 53 along the width direction of the notch 31. Therefore, the end of the connecting pipe 51 inside the dust hood 3 can move within the dust hood 3 to adapt to changes in the nozzle direction during spraying.

[0038] Reference Figure 6 As shown, the dust hood 3 has a dust discharge port 32 on the side facing the base 1. A retaining mesh plate 33 is installed inside the dust discharge port 32 to retain large particles of impurities. A retaining strip 34 is provided on the inner wall of the dust hood 3 near the first conical hopper 631. The retaining strip 34 extends upward at an angle to temporarily store large particles of impurities during construction.

[0039] Reference Figure 4 , Figure 5As shown, drive seats 7 are provided on both outer sides of the dust hood 3. Drive cylinders 71 are mounted on the drive seats 7, and drive blocks 72 are mounted on the piston rods of the drive cylinders 71. The two drive blocks 72 are fixed to both sides of the dust hood 3. The drive assembly 4 includes a drive motor 41, a lead screw 42, and a guide rod 43. The length directions of the lead screw 42 and the guide rod 43 are consistent with the length direction of the support frame 2 and are located on both sides of the support frame 2. One drive seat 7 is threadedly connected to the lead screw 42, and the other drive seat 7 is slidably connected to the guide rod 43. The drive motor 41 is fixedly mounted on the support frame 2, and its output shaft is fixedly connected to the lead screw 42. By moving the drive blocks 72 through the drive cylinders 71, the dust hood 3 can be moved closer to or further away from the sprayed surface, thus adjusting the distance between the dust hood 3 and the sprayed surface. When the drive motor 41 is started, it drives the lead screw 42 to rotate. Under the limiting action of the guide rod 43, the drive seat 7 and the dust cover 3 can move as a whole along the length of the support frame 2. Thus, after spraying one spray point, the dust cover 3 can be moved as a whole to the next spray point for dust suppression.

[0040] Reference Figure 7 , Figure 8 As shown, the drive base 7 includes a first support 701 and a second support 702 rotatably connected to the first support 701. A torsion spring 703 is connected between the first support 701 and the second support 702. A positioning member 73 is provided on the first support 701. The positioning member 73 includes a support block 731, a clamping spring 732, a positioning block 733, and a positioning rod 734. The support block 731 is fixedly provided on the first support 701. The positioning block 733 is slidably provided on one side of the support block 731. The clamping spring 732 is connected between the support block 731 and the positioning block 733. The positioning rod 734 is provided on the side of the positioning block 733 away from the support block 731. A positioning seat 74 is provided on the second support 702. The positioning seat 74 has a positioning hole for the positioning rod 734 to be inserted. When no external force is applied, the positioning block 733 drives the positioning rod 734 to be inserted into the positioning hole under the elastic force of the clamping spring 732, so as to fix the relative position of the first support 701 and the second support 702. After spraying the inclined surface of the slope, when it is necessary to spray the flat surface at the top of the slope, it is necessary to adjust the angle of the dust cover 3. At this time, the positioning rod 734 is moved out of the positioning hole and the dust cover 3 is pressed, which can change the tilt angle of the dust cover 3 to adapt to the change of the spray position angle.

[0041] Reference Figure 4 , Figure 7As shown, both sides of the support frame 2 are provided with a release element 8 for driving the positioning block 733 to move away from the positioning seat 74. The release element 8 includes a sliding seat 81, which is slidably mounted on the support frame 2 along its length. The side of the sliding seat 81 outside the support frame 2 is provided with a clamping bolt 82 for abutting against the support frame 2. By sliding the sliding seat 81 to a designated position and fixing the slid position with the clamping bolt 82, the release element 8 can be moved to the corresponding position, so that the positioning block 733 can be separated from the positioning seat 74 at the designated position, thus releasing the positioning effect between the first support 701 and the second support 702. The side of the sliding seat 81 inside the support frame 2 is provided with a release rod 83, and the bottom of the release rod 83 is provided with a release block 84. The end of the release block 84 facing the positioning block 733 is provided with an arc-shaped chamfer 841. When the positioning block 733 moves to contact the loosening block 84, the arc-shaped chamfer 841 on the loosening block 84 can abut against the positioning block 733 and drive the positioning block 733 to move away from the positioning seat 74, so that the positioning rod 734 moves out of the positioning hole, thereby allowing the first support 701 and the second support 702 to rotate relative to each other under the action of external force.

[0042] Reference Figure 5 , Figure 7 As shown, a flipping component 9 for driving the dust cover 3 to flip is provided between the two sliding seats 81. The flipping component 9 includes an arc-shaped pressing rod 91 and two rotating rods 92. The two rotating rods 92 are respectively rotatably connected to the two sides of the two sliding seats 81 facing each other. The arc-shaped pressing rod 91 is detachably connected between the two rotating rods 92. A rotating component 93 is provided on one of the sliding seats 81. The rotating component 93 includes a rotating motor 931, a driving gear 932 and a driven gear 933. The rotating motor 931 is fixedly mounted on the sliding seat 81. The driving gear 932 is mounted on the output shaft of the rotating motor 931. The driven gear 933 is coaxially connected to one of the rotating rods 92 and meshes with the driving gear 932. A touch switch 842 is provided at the end of the loosening block 84 away from the positioning block 733. When the positioning block 733 abuts against the touch switch 842, the rotating motor 931 is activated, thereby driving the drive gear 932 to rotate. Under the meshing action of the drive gear 932, the driven gear 933 rotates synchronously, driving one of the rotating rods 92 to rotate. This causes the arc-shaped pressing rod 91 to press the dust cover 3, causing the dust cover 3 to rotate downwards to a specified angle to adapt to the plane at the top of the slope. By detachably connecting the arc-shaped pressing rod 91 between the two rotating rods 92, different angles of inclination can be achieved by replacing the arc-shaped pressing rod 91 with one of different curvatures.

[0043] The above are merely preferred embodiments of the present invention and are not intended to limit the present invention. Various modifications and variations can be made to the present invention by those skilled in the art. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present invention should be included within the scope of protection of the present invention.

Claims

1. A dust suppression device for a wet spraying trolley, characterized in that, Includes a base (1), on which a support frame (2) and a rotating mechanism (21) for driving the support frame (2) to rotate are provided. On the support frame (2), a dust cover (3) and a driving assembly (4) for driving the dust cover (3) to move along the length direction of the support frame (2) are provided. On the dust cover (3), a connecting mechanism (5) for connecting with the nozzle of the wet spraying trolley is provided. On the base (1), a suction mechanism (6) for making the dust cover (3) negative pressure state is provided. The connecting mechanism (5) includes a connecting pipe (51), a connecting plate (52), and a connecting frame (53). The dust cover (3) has a notch (31). The connecting frame (53) is slidably disposed in the notch (31) along the length direction of the notch (31). The connecting plate (52) is slidably disposed in the connecting frame (53) along the width direction of the notch (31). The connecting pipe (51) is tapered and one end of the connecting pipe (51) passes through the connecting plate (52) and extends into the dust cover (3). The area of ​​the end of the connecting pipe (51) inside the dust cover (3) is greater than the area of ​​the end of the connecting pipe (51) outside the dust cover (3). Multiple connecting bolts (54) are distributed circumferentially at the end of the connecting pipe (51) outside the dust cover (3). The suction mechanism (6) includes a blower (61), a transfer box (62) and a suction pipe (63). The transfer box (62) is set on the base (1) and contains a dissolving liquid. The blower (61) is set on one side of the transfer box (62) and the blower pipe is connected to the top of the transfer box (62). One end of the suction pipe (63) is connected to one side of the transfer box (62) and the other end is connected to the dust cover (3). The suction pipe (63) is connected to the dust cover (3) at one end and is provided with a first conical hopper (631). The suction pipe (63) is located inside the transfer box (62) at one end and is provided with a second conical hopper (632). The transfer box (62) is provided with a partition (621) that divides the interior of the transfer box (62) into a first chamber (622) and a second chamber (623). The bottom of the partition (621) is provided with an opening and closing component (624) for connecting or separating the first chamber (622) and the second chamber (623). The opening and closing assembly (624) includes an opening and closing electric cylinder (6241) and an opening and closing plate (6242). The opening and closing plate (6242) is slidably disposed on one side of the partition (621) in a vertical direction. The cylinder of the opening and closing electric cylinder (6241) is fixedly disposed on the partition (621), and the piston rod of the opening and closing electric cylinder (6241) is fixedly connected to the top of the opening and closing plate (6242).

2. The wet spraying trolley dust suppression device according to claim 1, characterized in that, The second conical hopper (632) is located inside the first chamber (622) and the opening end of the second conical hopper (632) faces the bottom wall of the first chamber (622). An isolation mesh (633) is provided below the second conical hopper (632), and a counterweight frame (634) is provided at the bottom of the isolation mesh (633). The counterweight frame (634) is located below the liquid surface of the first chamber (622).

3. The wet spraying trolley dust suppression device according to claim 1, characterized in that, Both sides of the connecting frame (53) are connected to the end of the notch (31) with accordion-style baffles (531), and both sides of the connecting plate (52) are connected to the connecting frame (53) with elastic films (521).

4. The wet spraying trolley dust suppression device according to claim 1, characterized in that, The dust hood (3) is provided with a dust discharge port (32), and a retaining mesh plate (33) is provided inside the dust discharge port (32). A retaining strip (34) is provided on the inner wall of the dust hood (3) near the first conical bucket (631), and the retaining strip (34) extends upward at an angle.

5. The wet spraying trolley dust suppression device according to claim 1, characterized in that, The dust cover (3) is provided with drive seats (7) on both sides of its exterior. Drive cylinders (71) are provided on the drive seats (7). Drive blocks (72) are provided on the piston rods of the drive cylinders (71). The two drive blocks (72) are fixed on both sides of the dust cover (3). The drive assembly (4) includes a drive motor (41), a lead screw (42) and a guide rod (43). The length direction of the lead screw (42) and the guide rod (43) are consistent with the length direction of the support frame (2) and are located on both sides of the support frame (2). One of the drive seats (7) is threaded to the lead screw (42) and the other drive seat (7) is slidably connected to the guide rod (43). The drive motor (41) is fixedly mounted on the support frame (2) and the output shaft of the drive motor (41) is fixedly connected to the lead screw (42).

6. The wet spraying trolley dust suppression device according to claim 5, characterized in that, The drive seat (7) includes a first support (701) and a second support (702) rotatably connected to the first support (701). A torsion spring (703) is connected between the first support (701) and the second support (702). A positioning element (73) is provided on the first support (701). The positioning element (73) includes a support block (731), a clamping spring (732), a positioning block (733), and a positioning rod (734). The support block (731) is fixed. The positioning block (733) is slidably disposed on one side of the support block (731) on the first support (701), the clamping spring (732) is connected between the support block (731) and the positioning block (733), the positioning rod (734) is disposed on the side of the positioning block (733) away from the support block (731), and the second support (702) is provided with a positioning seat (74), the positioning seat (74) having a positioning hole for the positioning rod (734) to be inserted.

7. The wet spraying trolley dust suppression device according to claim 6, characterized in that, Both sides of the support frame (2) are provided with a release element (8) for driving the positioning block (733) to move away from the positioning seat (74). The release element (8) includes a sliding seat (81). The sliding seat (81) is slidably disposed on the support frame (2) along the length direction of the support frame (2). The side of the sliding seat (81) outside the support frame (2) is provided with a clamping bolt (82) for abutting against the support frame (2). The side of the sliding seat (81) inside the support frame (2) is provided with a release rod (83). The bottom of the release rod (83) is provided with a release block (84). The end of the release block (84) facing the positioning block (733) is provided with an arc chamfer (841).

8. The wet spraying trolley dust suppression device according to claim 7, characterized in that, A flipping component (9) for driving the dust cover (3) to flip is provided between the two sliding seats (81). The flipping component (9) includes an arc-shaped pressing rod (91) and two rotating rods (92). The two rotating rods (92) are respectively rotatably connected to the two sliding seats (81) on opposite sides. The arc-shaped pressing rod (91) is detachably connected between the two rotating rods (92). A rotating component (93) is provided on one of the sliding seats (81). The rotating component (93) includes a rotating motor (931) and a drive gear (93). 2) and driven gear (933), the rotary motor (931) is fixedly mounted on the sliding seat (81), the drive gear (932) is mounted on the output shaft of the rotary motor (931), the driven gear (933) is coaxially connected to one of the rotating rods (92) and meshes with the drive gear (932); the loosening block (84) is provided with a touch switch (842) at one end away from the positioning block (733), and the rotary motor (931) can be turned on when the positioning block (733) abuts against the touch switch (842).

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