Building construction dust falling device

Abstract

The utility model relates to the technical field of building construction, in particular to a building construction dust falling device which comprises a dust falling vehicle, a water storage tank, a rotating shaft, a rotating disc, an annular gear, a spraying assembly, a water conveying assembly and a linkage assembly. The two walking assemblies each comprise a walking seat, a walking shaft and two walking wheels, the annular gear is arranged on the outer wall of the rotating disc in a sleeving mode, the spraying assembly is installed at the top of the rotating disc, the water conveying assembly is installed at the top of the dust falling vehicle, and the bottom end of the water conveying assembly is in transmission connection with the walking shaft in one walking assembly. The water conveying assembly is respectively communicated with the water storage tank and the spraying assembly, the linkage assembly is installed on the top of the dust falling vehicle and is in transmission connection with the water conveying assembly, water conveying can be achieved and the spraying range can be enlarged as long as the walking wheels walk and rotate on the ground, and the situation that dust falling work is affected due to the fact that the electric quantity of a battery is insufficient is avoided.

Description

Technical Field

[0001] The utility model relates to the technical field of building construction, in particular to a dust reduction device for building construction. Background Art

[0002] As we all know, construction sites are often dusty due to factors such as earth excavation, cement spillage from concrete mixing stations, and exposed surfaces. This not only pollutes the environment, but also has a certain impact on the health of workers. Therefore, it is necessary to carry out dust reduction treatment on the construction site during construction.

[0003] The Chinese utility model patent with announcement number CN220609677U discloses a construction dust suppression device, including: a base, the upper end of which is fixedly connected with a water storage tank, a water pump, a push handle, an electric telescopic rod and a battery, the water outlet of the water pump is fixedly connected with a hose, the upper end of the electric telescopic rod is fixedly connected with a rotating mechanism, the lower end of the rotating mechanism is fixedly connected with a motor and a dust sensor, the upper end of the rotating mechanism is fixedly connected with a spraying mechanism, and the water outlet of the spraying mechanism is fixedly connected with one end of the hose, and the lower end of the base is fixedly connected with a universal wheel. The automation of the dust suppression device is realized, the working state of the device is automatically controlled according to the dust concentration in the outside air, the waste of water resources is reduced, and in the dust suppression process, when there is no water in the water storage tank, the work is automatically stopped and the staff is prompted to avoid damage to the water pump due to idling.

[0004] However, the above patent still has the following shortcomings in actual use: the water pump of the patent works to transport water in the water tank, and the motor drives the mounting plate to continuously rotate forward and reverse to increase the coverage of the atomizing nozzle. Since it is used outdoors, the water pump and the motor need to be battery-powered during dust reduction operations. Once the battery power is low, the dust reduction work will be affected. Utility Model Content

[0005] The utility model aims to provide a construction dust suppression device to solve the problem in the above background technology that both the water pump and the motor need to be powered by batteries during dust suppression operation, and once the battery power is insufficient, the dust suppression work is affected.

[0006] The technical solution of the utility model is:

[0007] A construction dust suppression device comprises a dust suppression vehicle, a water storage tank, a rotating shaft, a rotating disk, a ring gear, a spraying assembly, a water delivery assembly and a linkage assembly. Two walking assemblies are symmetrically arranged at the bottom of the dust suppression vehicle, and the two walking assemblies each comprise a walking seat, a walking shaft and two walking wheels. The walking seat is mounted on the bottom of the dust suppression vehicle, and the walking shaft is rotatably mounted on the bottom end of the walking seat. The two walking wheels are symmetrically arranged on the walking shaft. The water storage tank is mounted on the top rear side of the dust suppression vehicle, and the top of the water storage tank is provided with a vertical pipe connected with the interior thereof. The rotating shaft is rotatably mounted on the top front side of the dust suppression vehicle, the rotating disk is mounted on the top of the rotating shaft, the ring gear is sleeved on the outer wall of the rotating disk, the spraying assembly is mounted on the top of the rotating disk, the water delivery assembly is mounted on the top of the dust suppression vehicle, and the bottom end of the water delivery assembly is transmission-connected with the walking shaft in one of the walking assemblies, the water delivery assembly is respectively connected with the water storage tank and the spraying assembly, the linkage assembly is mounted on the top of the dust suppression vehicle, and the linkage assembly is transmission-connected with the water delivery assembly, and the linkage assembly is used to drive the ring gear to reciprocate.

[0008] Furthermore, the spray assembly includes a lifting push rod, a lifting plate, a mounting seat, a transverse pipe and a plurality of spray pipes, the lifting push rod is vertically arranged on the top of the rotating disk, the lifting plate is mounted on the output end of the lifting push rod, the mounting seat is arranged on the top of the lifting plate, the transverse pipe is horizontally arranged in the mounting seat, the plurality of spray pipes are arranged at equal intervals on the outer wall of one side of the transverse pipe, and the plurality of spray pipes are connected to the interior of the transverse pipe, and the ends of the plurality of spray pipes away from the transverse pipe are provided with atomizing nozzles.

[0009] Furthermore, the water delivery assembly includes a support frame, a water delivery cylinder, a piston, a push rod, a push plate, a push wheel, a rotating seat, a rotating shaft, a cam, a driving wheel, a driven wheel, a belt, a vertical plate and a movable rack. The support frame is mounted on the top of the dust suppression vehicle, the water delivery cylinder is vertically arranged on the outer wall of the support frame, the piston is slidably installed in the water delivery cylinder, the top end of the push rod is connected to the bottom of the piston, the bottom end of the push rod extends to the bottom of the dust suppression vehicle, the push plate is installed at the bottom of the push rod, the push wheel is rotatably installed at the bottom of the push plate, the rotating seat is installed at the bottom of the dust suppression vehicle, the rotating shaft is rotatably installed on the rotating seat, and the cam is installed On the rotating shaft, and the top of the cam is in conflict with the bottom end of the pushing wheel, the driving wheel is installed on the walking shaft in one of the walking components, the driven wheel is installed on the rotating shaft, the belt sleeve is arranged on the outside of the driving wheel and the driven wheel, the vertical plate is vertically arranged at the top edge of the pushing plate, and the top of the vertical plate extends to above the top of the dust suppression vehicle, the moving rack is vertically arranged on the outer wall of the vertical plate, and the moving rack is coordinated with the linkage component for transmission, a connecting pipe is connected between the inner top of the water delivery cylinder and the inner bottom end of the water tank, a hose is connected between the inner top of the water delivery cylinder and the inside of the horizontal pipe, and a one-way control valve is installed on the connecting pipe and the hose.

[0010] Furthermore, the linkage assembly includes an L-shaped frame, a fixed seat, a screw, a moving gear, a moving block, a guide rail, a linkage block and a linkage rack. The L-shaped frame is installed on the top of the dust suppression vehicle, the fixed seat is horizontally arranged on the top outer wall of the L-shaped frame, the screw is rotatably installed on the fixed seat, and one end of the screw extends to the outside of the fixed seat, the moving gear is installed on the end of the screw, and the moving gear is meshed with the moving rack, the moving block is arranged on the screw, and the moving block is threadedly matched with the screw, the guide rail is horizontally arranged on the outer wall of the L-shaped frame, the linkage block is slidably installed on the guide rail, and the top of the linkage block is connected to the bottom of the moving block, the linkage rack is horizontally arranged on the outer wall of the linkage block, and the linkage rack is meshed with the ring gear.

[0011] Furthermore, a liquid level sensor is provided on the outer wall of the bottom end of the water tank, the sensing end of the liquid level sensor extends into the water tank, and a buzzer is provided on the top of the water tank, and the buzzer is electrically connected to the liquid level sensor.

[0012] Furthermore, a hand push rack is provided on the rear outer wall of the dust suppression vehicle.

[0013] The utility model provides a construction dust reduction device through improvement, which has the following improvements and advantages compared with the prior art:

[0014] First: the utility model pushes the dust suppression vehicle to move, and the dust suppression vehicle moves on the ground using walking wheels. A walking shaft in one of the walking components drives a water delivery component to work while rotating. The water delivery component delivers water in the water tank to the spraying component, and the spraying component sprays the water therein to perform dust suppression operations. While the water delivery component is working, it also drives the linkage component to work. The linkage component drives the annular gear to reciprocate by a certain angle, and then the annular gear drives the spraying component to synchronously reciprocate by a certain angle using a rotating disk and a rotating shaft, thereby increasing the water spraying range of the spraying component. As long as the walking wheels move and rotate on the ground, water can be delivered and the spraying range can be increased. Compared with the method of using a water pump and a motor to drive, there will be no situation where insufficient battery power affects the dust suppression work.

[0015] Second: The liquid level sensor of the utility model is used to sense the liquid level of water in the water tank. When the liquid level is lower than the sensing end of the liquid level sensor, the liquid level sensor transmits the sensing signal to the buzzer. The buzzer receives the signal and emits an alarm to remind the staff to add water to the vertical pipe in time. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] The utility model is further explained below in conjunction with the accompanying drawings and embodiments:

[0017] Figure 1 This is a three-dimensional structure diagram of the utility model. Figure 1 ;

[0018] Figure 2 This is a three-dimensional structure diagram of the utility model. Figure 2 ;

[0019] Figure 3 This is a three-dimensional structure diagram of the utility model. Figure 3 ;

[0020] Figure 4 It is a schematic diagram of the local three-dimensional structure of the utility model Figure 1 ;

[0021] Figure 5 It is a schematic diagram of the local three-dimensional structure of the utility model Figure 2 ;

[0022] Figure 6 It is a partial cross-sectional view of the utility model.

[0023] Description of reference numerals:

[0024] Dust suppression vehicle 1, hand push frame 11, water storage tank 2, vertical pipe 21, liquid level sensor 22, buzzer 23, rotating shaft 3, rotating disk 4, ring gear 5, spray assembly 6, lifting push rod 61, lifting plate 62, mounting seat 63, horizontal pipe 64, spray pipe 65, atomizing nozzle 66, water delivery assembly 7, support frame 71, water delivery cylinder 72, piston 73, push rod 74, push plate 75, push wheel 76, rotating seat 77, rotating Shaft 78, cam 79, driving wheel 791, driven wheel 792, belt 793, vertical plate 794, moving rack 795, connecting pipe 796, hose 797, one-way control valve 798, linkage assembly 8, L-shaped frame 81, fixed seat 82, screw 83, moving gear 84, moving block 85, guide rail 86, linkage block 87, linkage rack 88, walking assembly 9, walking seat 91, walking shaft 92, walking wheel 93. DETAILED DESCRIPTION

[0025] The utility model is described in detail below, and the technical solutions in the embodiments of the utility model are clearly and completely described. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments of the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0026] The utility model provides a construction dust reduction device through improvement. Figure 1-Figure 6As shown, it includes a dust suppression vehicle 1, a water storage tank 2, a rotating shaft 3, a rotating disk 4, a ring gear 5, a spraying assembly 6, a water delivery assembly 7 and a linkage assembly 8. The bottom of the dust suppression vehicle 1 is symmetrically provided with two walking assemblies 9, and the two walking assemblies 9 each include a walking seat 91, a walking shaft 92 and two walking wheels 93. The walking seat 91 is installed at the bottom of the dust suppression vehicle 1, and the walking shaft 92 is rotatably installed at the bottom of the walking seat 91. The two walking wheels 93 are symmetrically arranged on the walking shaft 92. The water storage tank 2 is installed on the dust suppression vehicle 1 The top rear side of the water tank 2 is provided with a vertical pipe 21 connected to the inside thereof, the rotating shaft 3 is rotatably mounted on the top front side of the dust suppression vehicle 1, the rotating disk 4 is mounted on the top of the rotating shaft 3, the ring gear 5 is sleeved on the outer wall of the rotating disk 4, the spraying assembly 6 is mounted on the top of the rotating disk 4, the water delivery assembly 7 is mounted on the top of the dust suppression vehicle 1, and the bottom end of the water delivery assembly 7 is transmission-connected with the walking shaft 92 in one of the walking assemblies 9, and the water delivery assembly 7 is respectively connected with the water tank 2 and the spraying assembly 6 The linkage assembly 8 is connected, the linkage assembly 8 is installed on the top of the dust suppression vehicle 1, and the linkage assembly 8 is transmission-connected with the water delivery assembly 7, and the linkage assembly 8 is used to drive the ring gear 5 to reciprocate; by pushing the dust suppression vehicle 1 to move, the dust suppression vehicle 1 uses the walking wheels 93 to walk and move on the ground, and the walking shaft 92 in one of the walking assemblies 9 drives the water delivery assembly 7 to work while rotating, and the water delivery assembly 7 works to transport the water in the water storage tank 2 to the spraying assembly 6, and the spraying assembly 6 sprays the water therein for dust suppression operations. While the water delivery assembly 7 is working, it also drives the linkage assembly 8 to work, and the linkage assembly 8 drives the ring gear 5 to reciprocate a certain angle, and then the ring gear 5 uses the rotating disk 4 and the rotating shaft 3 to drive the spraying assembly 6 to reciprocate a certain angle synchronously, thereby increasing the water spraying range of the spraying assembly 6. After the above steps, there is no need to adopt an electric drive method. As long as the walking wheel 93 walks and rotates on the ground, water can be delivered and the spraying range can be increased. Compared with the method of using a water pump and a motor drive, there will be no situation where insufficient battery power affects the dust suppression work, and the practicality is strong.

[0027] Specifically, the spray assembly 6 includes a lifting push rod 61, a lifting plate 62, a mounting seat 63, a transverse tube 64 and a plurality of spray pipes 65. The lifting push rod 61 is vertically arranged on the top of the rotating disk 4, the lifting plate 62 is mounted on the output end of the lifting push rod 61, the mounting seat 63 is arranged on the top of the lifting plate 62, the transverse tube 64 is horizontally arranged in the mounting seat 63, and a plurality of the spray pipes 65 are arranged on the outer wall of one side of the transverse tube 64 at equal intervals, and the plurality of spray pipes 65 are connected to the interior of the transverse tube 64, and atomizing nozzles 66 are arranged at one end of the plurality of spray pipes 65 away from the transverse tube 64; the lifting push rod 61 drives the atomizing nozzle 66 to rise and fall to a suitable working height, and then the water delivery assembly 7 delivers the water in the water tank 2 to the transverse tube 64, and the atomizing nozzles 66 on the plurality of spray pipes 65 spray water to reduce dust.

[0028] Specifically, the water delivery assembly 7 includes a support frame 71, a water delivery cylinder 72, a piston 73, a push rod 74, a push plate 75, a push wheel 76, a rotating seat 77, a rotating shaft 78, a cam 79, a driving wheel 791, a driven wheel 792, a belt 793, a vertical plate 794 and a movable rack 795. The support frame 71 is mounted on the top of the dust suppression vehicle 1, the water delivery cylinder 72 is vertically arranged on the outer wall of the support frame 71, the piston 73 is slidably installed in the water delivery cylinder 72, the top end of the push rod 74 is connected to the bottom of the piston 73, the bottom end of the push rod 74 extends to the bottom of the dust suppression vehicle 1, the push plate 75 is installed at the bottom of the push rod 74, and the push wheel 76 is rotatably installed The bottom of the push plate 75, the rotating seat 77 is installed at the bottom of the dust suppression vehicle 1, the rotating shaft 78 is rotatably installed on the rotating seat 77, the cam 79 is installed on the rotating shaft 78, and the top of the cam 79 is in conflict with the bottom end of the push wheel 76, the driving wheel 791 is installed on the walking shaft 92 in one of the walking components 9, the driven wheel 792 is installed on the rotating shaft 78, the belt 793 is sleeved on the outside of the driving wheel 791 and the driven wheel 792, the vertical plate 794 is vertically arranged at the top edge of the push plate 75, and the top of the vertical plate 794 extends to the top of the dust suppression vehicle 1, the moving rack 795 is vertically arranged on the outer wall of the vertical plate 794, and the moving rack 795 is vertically arranged on the outer wall of the vertical plate 794. The rack 795 is in transmission cooperation with the linkage assembly 8. A connecting pipe 796 is connected between the inner top of the water delivery cylinder 72 and the inner bottom of the water storage tank 2. A hose 797 is connected between the inner top of the water delivery cylinder 72 and the interior of the cross pipe 64. A one-way control valve 798 is installed on the connecting pipe 796 and the hose 797. The walking shaft 92 in one of the walking assemblies 9 drives the driving wheel 791 to rotate. The driving wheel 791 drives the driven wheel 792 and the rotating shaft 78 to rotate by means of the belt 793. The rotating shaft 78 drives the cam 79 to rotate. The cam 79 drives the push plate 75 and the push rod 74 to reciprocate and rise and fall a certain distance by means of the push wheel 76. The piston 73 synchronously reciprocates and rises and falls in the water delivery cylinder 72. When When the piston 73 moves upward, the piston 73 squeezes the water in the water cylinder 72 into the transverse tube 64 through the hose 797. When the piston 73 moves downward, the piston 73 pushes the water in the water tank 2 into the water cylinder 72 through the connecting pipe 796. The one-way control valve 798 controls the water in the connecting pipe 796 to flow only in one direction to the water cylinder 72, and the water in the hose 797 to flow only in one direction to the transverse tube 64. The push plate 75 uses the vertical plate 794 to drive the moving rack 795 to reciprocate and rise and fall synchronously. The moving rack 795 drives the linkage assembly 8 to work during the reciprocating rise and fall, which makes it convenient for the linkage assembly 8 to drive the ring gear 5 to reciprocate and rotate a certain angle, and the water delivery and rotation of the atomizing nozzle 66 are completed without the need for electric drive.

[0029] Specifically, the linkage assembly 8 includes an L-shaped frame 81, a fixed seat 82, a screw 83, a moving gear 84, a moving block 85, a guide rail 86, a linkage block 87 and a linkage rack 88. The L-shaped frame 81 is installed on the top of the dust suppression vehicle 1, and the fixed seat 82 is horizontally arranged on the top outer wall of the L-shaped frame 81. The screw 83 is rotatably installed on the fixed seat 82, and one end of the screw 83 extends to the outside of the fixed seat 82. The moving gear 84 is installed at the end of the screw 83, and the moving gear 84 is meshed with the moving rack 795. The moving block 85 is arranged on the screw 83, and the moving block 85 is threadedly matched with the screw 83. The guide rail 86 is horizontally arranged on the outer wall of the L-shaped frame 81. The linkage block 87 is slidably installed on the guide rail 86, and the top of the linkage block 87 is connected to the bottom of the moving block 85, and the linkage rack 88 is horizontally arranged on the outer wall of the linkage block 87, and the linkage rack 88 is meshed with the ring gear 5; when the moving rack 795 is reciprocatingly lifted and lowered, the moving rack 795 drives the moving gear 84 to reciprocate a certain angle, and the moving gear 84 uses the screw 83 to drive the moving block 85 and the linkage block 87 to reciprocate horizontally for a certain distance, and the linkage block 87 uses the linkage rack 88 to drive the ring gear 5 to reciprocate a certain angle, and then the ring gear 5 uses the rotating disk 4 and the rotating shaft 3 to drive the atomizing nozzle 66 to reciprocate a certain angle synchronously, thereby increasing the water spray range of the atomizing nozzle 66.

[0030] Specifically, a liquid level sensor 22 is provided on the outer wall of the bottom end of the water tank 2, and the sensing end of the liquid level sensor 22 extends into the water tank 2. A buzzer 23 is provided on the top of the water tank 2, and the buzzer 23 is electrically connected to the liquid level sensor 22; the liquid level sensor 22 is used to sense the liquid level of water in the water tank 2. When the liquid level is lower than the sensing end of the liquid level sensor 22, the liquid level sensor 22 transmits the sensing signal to the buzzer 23. The buzzer 23 receives the signal and emits an alarm to remind the staff to add water to the vertical pipe 21 in time.

[0031] Specifically, a hand push frame 11 is provided on the rear outer wall of the dust suppression vehicle 1; the hand push frame 11 facilitates the staff to push the dust suppression vehicle 1 to move.

[0032] The working principle of the utility model is as follows: by pushing the dust suppression vehicle 1 to move, the dust suppression vehicle 1 uses the walking wheel 93 to walk and move on the ground, and the walking shaft 92 in one of the walking components 9 drives the driving wheel 791 to rotate while rotating, and the driving wheel 791 drives the driven wheel 792 and the rotating shaft 78 to rotate by the belt 793, and the rotating shaft 78 drives the cam 79 to rotate, and the cam 79 drives the pushing plate 75 and the pushing rod 74 to reciprocate and rise and fall a certain distance by the pushing wheel 76, and the piston 73 synchronously reciprocates and rises and falls in the water delivery cylinder 72. When the piston 73 moves upward, the piston 73 squeezes the water in the water delivery cylinder 72 into the horizontal pipe 64 through the hose 797, and when the piston 73 moves downward, the piston 73 pushes the water in the water storage tank 2 into the water storage tank 2 through the connecting pipe 796. The water is fed into the water delivery cylinder 72, and the lifting push rod 61 drives the atomizing nozzle 66 to rise and fall to a suitable working height. The atomizing nozzles 66 on the multiple spraying pipes 65 spray the water in the horizontal pipe 64 to reduce dust. The pushing plate 75 drives the moving rack 795 to rise and fall synchronously by means of the vertical plate 794. The moving rack 795 drives the moving gear 84 to rotate reciprocatingly at a certain angle during the reciprocating rise and fall. The moving gear 84 drives the moving block 85 and the linkage block 87 to reciprocate horizontally for a certain distance by means of the screw 83. The linkage block 87 drives the ring gear 5 to rotate reciprocatingly at a certain angle by means of the linkage rack 88. Then, the ring gear 5 drives the atomizing nozzle 66 to rotate reciprocatingly at a certain angle by means of the rotating disk 4 and the rotating shaft 3, thereby increasing the water spraying range of the atomizing nozzle 66.

[0033] The above description of the disclosed embodiments enables those skilled in the art to implement or use the present invention. Various modifications to these embodiments will be apparent to those skilled in the art, and the general principles defined herein may be implemented in other embodiments without departing from the spirit or scope of the present invention. Therefore, the present invention will not be limited to the embodiments shown herein, but will conform to the widest scope consistent with the principles and novel features disclosed herein.

Claims

1. A dust suppression device for construction, characterized in that: The invention comprises a dust suppression vehicle (1), a water storage tank (2), a rotating shaft (3), a rotating disk (4), a ring gear (5), a spraying assembly (6), a water delivery assembly (7) and a linkage assembly (8); two walking assemblies (9) are symmetrically arranged at the bottom of the dust suppression vehicle (1); the two walking assemblies (9) each comprise a walking seat (91), a walking shaft (92) and two walking wheels (93); the walking seat (91) is mounted at the bottom of the dust suppression vehicle (1); the walking shaft (92) is rotatably mounted at the bottom end of the walking seat (91); the two walking wheels (93) are symmetrically arranged on the walking shaft (92); the water storage tank (2) is mounted at the top rear side of the dust suppression vehicle (1); and the top of the water storage tank (2) is provided with a vertical pipe (21) connected to the inside of the water storage tank (2). The rotating shaft (3) is rotatably mounted on the top front side of the dust suppression vehicle (1); the rotating disk (4) is mounted on the top of the rotating shaft (3); the ring gear (5) is sleeved on the outer wall of the rotating disk (4); the spraying assembly (6) is mounted on the top of the rotating disk (4); the water supply assembly (7) is mounted on the top of the dust suppression vehicle (1); and the bottom end of the water supply assembly (7) is transmission-connected to a walking shaft (92) in one of the walking assemblies (9); the water supply assembly (7) is respectively connected to the water storage tank (2) and the spraying assembly (6); the linkage assembly (8) is mounted on the top of the dust suppression vehicle (1); and the linkage assembly (8) is transmission-connected to the water supply assembly (7); and the linkage assembly (8) is used to drive the ring gear (5) to reciprocate.

2. A construction dust suppression device according to claim 1, characterized in that: The spray assembly (6) comprises a lifting push rod (61), a lifting plate (62), a mounting seat (63), a transverse pipe (64) and a plurality of spray pipes (65), wherein the lifting push rod (61) is vertically arranged on the top of the rotating disk (4), the lifting plate (62) is mounted on the output end of the lifting push rod (61), the mounting seat (63) is arranged on the top of the lifting plate (62), the transverse pipe (64) is horizontally arranged in the mounting seat (63), the plurality of spray pipes (65) are arranged at equal intervals on the outer wall of one side of the transverse pipe (64), and the plurality of spray pipes (65) are connected to the interior of the transverse pipe (64), and the ends of the plurality of spray pipes (65) away from the transverse pipe (64) are all provided with atomizing nozzles (66).

3. A construction dust suppression device according to claim 2, characterized in that: The water delivery assembly (7) comprises a support frame (71), a water delivery cylinder (72), a piston (73), a push rod (74), a push plate (75), a push wheel (76), a rotating seat (77), a rotating shaft (78), a cam (79), a driving wheel (791), a driven wheel (792), a belt (793), a vertical plate (794) and a movable rack (795); the support frame (71) is mounted on the top of the dust suppression vehicle (1); the water delivery cylinder (72) is vertically arranged on the outer wall of the support frame (71); The piston (73) is slidably mounted in the water delivery cylinder (72), the top end of the push rod (74) is connected to the bottom of the piston (73), the bottom end of the push rod (74) extends to below the bottom of the dust suppression vehicle (1), the push plate (75) is mounted on the bottom of the push rod (74), the push wheel (76) is rotatably mounted on the bottom of the push plate (75), the rotating seat (77) is mounted on the bottom of the dust suppression vehicle (1), the rotating shaft (78) is rotatably mounted on the rotating seat (77), and the cam (7 The driving wheel (791) is mounted on the travel shaft (92) in one of the travel assemblies (9), and the driven wheel (792) is mounted on the rotating shaft (78). The belt (793) is sleeved on the outside of the driving wheel (791) and the driven wheel (792). The vertical plate (794) is vertically arranged at the top edge of the push plate (75), and the top end of the vertical plate (794) extends to the lower edge of the lower plate. Above the top of the dust truck (1), the movable rack (795) is vertically arranged on the outer wall of the vertical plate (794), and the movable rack (795) is transmission-coordinated with the linkage assembly (8), a connecting pipe (796) is connected between the internal top end of the water delivery cylinder (72) and the internal bottom end of the water storage tank (2), a hose (797) is connected between the internal top end of the water delivery cylinder (72) and the interior of the horizontal pipe (64), and a one-way control valve (798) is installed on the connecting pipe (796) and the hose (797).

4. A construction dust suppression device according to claim 3, characterized in that: The linkage assembly (8) comprises an L-shaped frame (81), a fixed seat (82), a screw (83), a moving gear (84), a moving block (85), a guide rail (86), a linkage block (87) and a linkage rack (88); the L-shaped frame (81) is mounted on the top of the dust suppression vehicle (1); the fixed seat (82) is horizontally arranged on the top outer wall of the L-shaped frame (81); the screw (83) is rotatably mounted on the fixed seat (82), and one end of the screw (83) extends to the outside of the fixed seat (82); the moving gear (84) is mounted on the screw (83) ), and the moving gear (84) is meshed with the moving rack (795), the moving block (85) is arranged on the screw rod (83), and the moving block (85) is threadedly matched with the screw rod (83), the guide rail (86) is horizontally arranged on the outer wall of the L-shaped frame (81), the linkage block (87) is slidably installed on the guide rail (86), and the top of the linkage block (87) is connected to the bottom of the moving block (85), the linkage rack (88) is horizontally arranged on the outer wall of the linkage block (87), and the linkage rack (88) is meshed with the ring gear (5).

5. A construction dust suppression device according to claim 1, characterized in that: A liquid level sensor (22) is provided on the outer wall of the bottom end of the water tank (2), the sensing end of the liquid level sensor (22) extends into the water tank (2), and a buzzer (23) is provided on the top of the water tank (2), and the buzzer (23) is electrically connected to the liquid level sensor (22).

6. A construction dust suppression device according to claim 1, characterized in that: A hand push frame (11) is provided on the rear outer wall of the dust suppression vehicle (1).

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