Humidity-adjustable energy-saving road sweeper

Abstract

The invention belongs to the technical field of road surface cleaning, and particularly relates to a humidity-adjustable energy-saving road sweeper which comprises a sweeper body, a sweeping mechanism, a dust suction mechanism, a dust concentration detection mechanism, an automatic spraying and humidifying mechanism, a lifting mechanism and a barrier height detection feedback mechanism. The dust condition of a road surface can be automatically judged based on the dust content in sucked air, the replacement frequency of the filter screen cylinder is synchronously regulated and controlled, efficient dust suction work is maintained, water can be supplied according to needs, the water spraying amount is reduced in a region with less dust, water resources are reasonably distributed to a region with more dust, the water resource utilization rate is increased, and the energy consumption is reduced. And the energy-saving and environment-friendly requirements are met.

Description

Technical Field

[0001] The invention belongs to the technical field of road cleaning, and in particular relates to an energy-saving sweeper capable of adjusting humidity. Background Art

[0002] The sweeper is an integrated garbage cleaning vehicle that combines sweeping and vacuuming. It has the advantages of high work efficiency, low cleaning cost, good cleaning effect, high safety performance and high economic return rate. It has been widely used in road cleaning work in large, medium and small cities.

[0003] During the operation of a sweeper, it is easy to cause secondary pollution due to the dust generated by cleaning. Therefore, many sweepers are equipped with a water spray mechanism to assist in dust reduction. Traditional sweepers use a fixed water spray volume to assist in dust reduction. However, in sections with less dust, such as roads in parks with few pedestrians and good greening, or commercial streets that have just been cleaned in the early morning with little garbage and dust, they still operate according to a fixed large water spray volume. A large amount of water resources are sprinkled on the ground in vain, but the cleaning effect is not significantly improved, resulting in a huge waste of resources. In areas with more dust, such as roads around construction sites and roads near mining areas, a fixed water spray volume cannot meet the needs of sufficient dust sedimentation and cleaning. Insufficient ground humidity, dust is very easy to be raised again during cleaning, resulting in incomplete cleaning, and the road dust situation is constantly changing due to various factors such as time, weather, and traffic flow. After the traffic rush hour, vehicles travel frequently, and the friction between tires and the ground and vehicle exhaust emissions will increase the dust on the road. The fixed water spraying volume cannot be adjusted in time to cope with this change, resulting in a significant reduction in the cleaning effect. When the weather is dry, the moisture on the ground evaporates quickly, and the fixed water spraying volume is difficult to maintain the ground humidity, resulting in a serious dust problem. On cloudy days or after a light rain, the ground itself is humid, and the fixed water spraying volume will cause excessive use of water resources. It cannot be dynamically adjusted according to the actual environment, seriously affecting the adaptability and effectiveness of the cleaning work. Summary of the invention

[0004] The object of the present invention is to provide an energy-saving sweeper capable of adjusting humidity in view of the above-mentioned problems.

[0005] To achieve the above object, the present invention adopts the following technical scheme: an energy-saving sweeping vehicle with adjustable humidity, comprising a vehicle body, and further comprising: A cleaning mechanism is installed at the lower end of the vehicle body; A dust suction mechanism is installed at the lower end of the vehicle body and is arranged at the rear side of the cleaning mechanism; A dust concentration detection mechanism is installed at the air inlet end of the dust suction mechanism and is electrically connected to the PLC controller. The PLC controller controls the dust suction mechanism to automatically replace the filter components therein based on the dust concentration signal fed back by the dust concentration detection mechanism. An automatic spray humidification mechanism is installed in the vehicle body and is electrically connected to a PLC controller, and the PLC controller controls the working power of the automatic spray humidification mechanism based on a dust concentration signal fed back by a dust concentration detection mechanism; A lifting mechanism is installed on the inner front side of the vehicle body; The obstacle height detection feedback mechanism is installed on the moving end of the lifting mechanism and is arranged on the front side of the cleaning mechanism.

[0006] In the above-mentioned energy-saving sweeper with adjustable humidity, the cleaning mechanism includes a bracket fixedly mounted on the bottom of the inner wall of the vehicle body, an electric push rod is fixedly inserted on the bracket, the lower moving end of the electric push rod passes through the lower end of the vehicle body and is fixedly connected to an electric rotating cleaning assembly.

[0007] In the above-mentioned energy-saving sweeper with adjustable humidity, the dust suction mechanism includes a first electric telescopic rod fixedly connected to the bottom of the inner wall of the vehicle body, the upper movable end of the first electric telescopic rod is fixedly connected to a fixed cylinder, a suction pipe is fixedly sleeved in the fixed cylinder, the lower end of the suction pipe passes through the lower end of the vehicle body and is fixedly connected to a suction head, the suction head is fixedly connected to one side of the electric rotating cleaning component, the suction pipe is also provided with two sections of elastic corrugated telescopic tubes located on the upper and lower sides of the dust concentration detection mechanism, the bottom of the inner wall of the vehicle body is also fixedly installed with a second electric telescopic rod, the first The upper movable end of the second electric telescopic rod is fixedly connected to a fixed circular plate, and the bottom of the inner wall of the vehicle body is also fixedly provided with a motor rotating assembly for driving the second electric telescopic rod to rotate. The surface of the fixed circular plate is evenly fixed with a plurality of receiving tubes distributed in a ring shape, and the end of the suction tube away from the suction head is fixedly connected with a connector corresponding to the upper end of the receiving tube, and the outer wall of the lower end of the receiving tube is threadedly connected to a filter screen tube, and a dust bag is installed inside the filter screen tube, and a negative pressure tube with a sealing cover sleeved outside the filter screen tube is fixedly provided at the bottom of the inner wall of the vehicle body, and a negative pressure pump is embedded at the bottom of the negative pressure tube.

[0008] In the above-mentioned energy-saving sweeper with adjustable humidity, the dust concentration detection mechanism includes a detection shell fixedly connected to the suction pipe, a dust sensor is installed inside the detection shell, and an electronic timer is also fixedly installed on the outer wall of the detection shell.

[0009] In the above-mentioned energy-saving sweeper with adjustable humidity, the automatic spray humidification mechanism includes a water tank fixedly mounted on the bottom of the inner wall of the vehicle body, and the bottom side wall of the water tank is fixedly connected with a spray pipe, and the end of the spray pipe away from the water tank passes through the lower end of the vehicle body and is fixedly connected with a spray head, and the spray head is fixedly mounted on the bottom of the vehicle body. A spray pump is also installed on the spray pipe, and the spray pump is fixedly mounted on the bottom of the inner wall of the vehicle body.

[0010] In the above-mentioned energy-saving sweeper with adjustable humidity, the lifting mechanism includes a rotating screw rotatably connected to the body, the rotating screw is vertically arranged, and a forward and reverse motor for driving the rotating screw to rotate is fixedly installed inside the body, and an L-shaped lifting plate is threadedly sleeved on the rod wall of the rotating screw, and the lower end of the L-shaped lifting plate passes through the lower end of the body through a through opening opened at the bottom of the body, and is fixedly connected to the upper end of the obstacle height detection feedback mechanism.

[0011] In the above-mentioned energy-saving sweeper with adjustable humidity, the obstacle height detection feedback mechanism includes a U-shaped mounting plate, and the opposite side of the U-shaped mounting plate is rotatably connected with a mounting cylinder through a transmission shaft, and the mounting cylinder and the opposite side of the U-shaped mounting plate are fixedly mounted with a torsion spring sleeved outside the transmission shaft, and the lower end of the mounting cylinder is fixedly mounted with a force baffle, and the outer wall of the U-shaped mounting plate is also fixedly mounted with an encoder, and the input end of the encoder is fixedly connected to one end of the transmission shaft.

[0012] In the above-mentioned energy-saving sweeper with adjustable humidity, a plurality of limit sliding rods arranged parallel to the rotating screw are fixedly installed inside the vehicle body, and a limit sliding hole slidably connected to the limit sliding rod is opened on the horizontal part of the L-shaped lifting plate.

[0013] Compared with the prior art, the present invention has the following beneficial effects: 1. Through the set cleaning mechanism, dust suction mechanism and dust concentration detection mechanism, the road surface can be quickly cleaned and the cleaned dust can be quickly sucked away, making the road surface cleaner. It can also automatically judge the dust condition of the road surface based on the dust content in the sucked air, and simultaneously adjust the replacement frequency of the filter cylinder to maintain efficient dust collection and avoid the problem that the filter cylinder will be clogged by dust and the pores will become smaller as the use time increases, thereby affecting the dust collection performance.

[0014] 2. Through the automatic spray humidification mechanism and dust concentration detection mechanism, the water spraying amount can be automatically adjusted according to the dust condition of the road surface. The greater the dust content on the road surface, the more water is sprayed. This can effectively suppress the remaining dust from being raised, prevent secondary pollution, and make the cleaning environment cleaner. The water spraying amount can be adjusted based on the dust content detection to achieve on-demand water supply. In areas with less dust, the water spraying amount can be reduced, and water resources can be reasonably allocated to areas with more dust, thereby improving the utilization rate of water resources and meeting the requirements of energy conservation and environmental protection. On roads with high dust content, the ground humidity can be maintained by increasing the water spraying amount, so that the dust can be better settled and dust can be prevented.

[0015] 3. Through the setting of the lifting mechanism and the obstacle height detection feedback mechanism, the obstacle height detection can be provided on the moving front side of the cleaning mechanism. When the obstacle height is too high and reaches the threshold value, which will cause damage to the cleaning mechanism, the signal will be fed back in time and the cleaning mechanism will be moved to a safe position to prevent the cleaning mechanism from being damaged by collision caused by inadvertent obstacles, and the early warning protection is better. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 It is a three-dimensional structural schematic diagram of the present invention; Figure 2 It is a front view cross-sectional structural schematic diagram of the present invention; Figure 3 It is a structural schematic diagram of the dust suction mechanism of the present invention; Figure 4 yes Figure 3 The middle part is an enlarged structural diagram; Figure 5 It is a three-dimensional structural schematic diagram of the dust concentration detection mechanism of the present invention; Figure 6 It is a three-dimensional structural schematic diagram of the automatic spray humidification mechanism of the present invention; Figure 7 It is a three-dimensional structural schematic diagram of the lifting mechanism of the present invention; Figure 8 It is a three-dimensional structural schematic diagram of the obstacle height detection feedback mechanism of the present invention.

[0017] In the figure: 1 body, 2 cleaning mechanism, 21 bracket, 22 electric push rod, 23 electric rotating cleaning assembly, 3 dust suction mechanism, 31 first electric telescopic rod, 32 fixed cylinder, 33 suction pipe, 34 suction head, 35 elastic corrugated telescopic pipe, 36 second electric telescopic rod, 37 fixed circular plate, 38 motor rotating assembly, 39 receiving cylinder, 310 connector, 311 filter cylinder, 312 dust bag, 313 negative pressure cylinder, 314 negative pressure pump, 4 dust Concentration detection mechanism, 41 detection shell, 42 dust sensor, 43 electronic timer, 5 automatic spray humidification mechanism, 51 water storage tank, 52 spray pipe, 53 spray head, 54 spray pump, 6 lifting mechanism, 61 rotating screw, 62 forward and reverse motor, 63 L-shaped lifting plate, 64 limit slide bar, 7 obstacle height detection feedback mechanism, 71 U-shaped mounting plate, 72 transmission shaft, 73 mounting cylinder, 74 torsion spring, 75 force baffle, 76 encoder. DETAILED DESCRIPTION

[0018] The technical solutions in the embodiments of the present invention will be described clearly and completely below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all the embodiments.

[0019] like Figure 1-Figure 8 As shown, an energy-saving sweeping vehicle capable of adjusting humidity includes a vehicle body 1 and further includes: The cleaning mechanism 2 is installed at the lower end of the vehicle body 1. The cleaning mechanism 2 includes a bracket 21 fixedly installed at the bottom of the inner wall of the vehicle body 1. An electric push rod 22 is fixedly inserted on the bracket 21. The lower moving end of the electric push rod 22 passes through the lower end of the vehicle body 1 and is fixedly connected to an electric rotating cleaning component 23.

[0020] The dust suction mechanism 3 is installed at the lower end of the vehicle body 1 and is arranged at the rear side of the cleaning mechanism 2. The dust suction mechanism 3 includes a first electric telescopic rod 31 fixedly connected to the bottom of the inner wall of the vehicle body 1. The upper movable end of the first electric telescopic rod 31 is fixedly connected to a fixed cylinder 32. A suction pipe 33 is fixedly sleeved in the fixed cylinder 32. The lower end of the suction pipe 33 passes through the lower end of the vehicle body 1 and is fixedly connected to a suction head 34. The suction head 34 is fixedly connected to one side of the electric rotating cleaning component 23. The suction pipe 33 is also provided with two sections of elastic corrugated telescopic tubes 35 located on the upper and lower sides of the dust concentration detection mechanism 4. The bottom of the inner wall of the vehicle body 1 is also fixedly installed with a second electric telescopic rod 36. The second electric telescopic The upper movable end of the rod 36 is fixedly connected to a fixed circular plate 37, and the bottom of the inner wall of the vehicle body 1 is also fixedly provided with a motor rotating assembly 38 for driving the second electric telescopic rod 36 to rotate. The surface of the fixed circular plate 37 is evenly fixed with a plurality of receiving tubes 39 distributed in an annular shape, and the end of the suction tube 33 away from the suction head 34 is fixedly connected to a connector 310 corresponding to the upper end of the receiving tube 39, and the outer wall of the lower end of the receiving tube 39 is threadedly connected to a filter screen tube 311, and a dust bag 312 is installed inside the filter screen tube 311. A negative pressure tube 313 with a sealing cover sleeved outside the filter screen tube 311 is fixedly provided at the bottom of the inner wall of the vehicle body 1, and a negative pressure pump 314 is embedded at the bottom of the negative pressure tube 313.

[0021] The dust concentration detection mechanism 4 is installed at the air inlet end of the dust suction mechanism 3 and is electrically connected to the PLC controller. The PLC controller controls the automatic replacement of the filter components within the dust suction mechanism 3 based on the dust concentration signal fed back by the dust concentration detection mechanism 4. The dust concentration detection mechanism 4 includes a detection shell 41 fixedly connected to the suction pipe 33. A dust sensor 42 is installed inside the detection shell 41, and an electronic timer 43 is also fixedly installed on the outer wall of the detection shell 41.

[0022] The automatic spray humidifying mechanism 5 is installed in the vehicle body 1 and is electrically connected to the PLC controller. The PLC controller controls the working power of the automatic spray humidifying mechanism 5 based on the dust concentration signal fed back by the dust concentration detection mechanism 4. The automatic spray humidifying mechanism 5 includes a water tank 51 fixedly installed at the bottom of the inner wall of the vehicle body 1. The bottom side wall of the water tank 51 is fixedly connected with a spray pipe 52. The end of the spray pipe 52 away from the water tank 51 passes through the lower end of the vehicle body 1 and is fixedly connected with a spray head 53. The spray head 53 is fixedly installed at the bottom of the vehicle body 1. A spray pump 54 is also installed on the spray pipe 52. The spray pump 54 is fixedly installed at the bottom of the inner wall of the vehicle body 1.

[0023] The lifting mechanism 6 is installed on the front side of the interior of the vehicle body 1. The lifting mechanism 6 includes a rotating screw 61 rotatably connected to the vehicle body 1. The rotating screw 61 is vertically arranged. A forward and reverse motor 62 for driving the rotating screw 61 to rotate is fixedly installed inside the vehicle body 1. The rod wall of the rotating screw 61 is threadedly sleeved with an L-shaped lifting plate 63. The lower end of the L-shaped lifting plate 63 passes through the lower end of the vehicle body 1 through a through opening opened at the bottom of the vehicle body 1, and is fixedly connected to the upper end of the obstacle height detection feedback mechanism 7. A plurality of limit slide rods 64 arranged parallel to the rotating screw 61 are also fixedly installed inside the vehicle body 1. A limit slide hole slidably sleeved with the limit slide rod 64 is opened on the horizontal part of the L-shaped lifting plate 63.

[0024] The obstacle height detection feedback mechanism 7 is installed on the moving end of the lifting mechanism 6 and is arranged on the front side of the cleaning mechanism 2. The obstacle height detection feedback mechanism 7 includes a U-shaped mounting plate 71. The opposite side of the U-shaped mounting plate 71 is rotatably connected with a mounting cylinder 73 through a transmission shaft 72. The mounting cylinder 73 and the opposite side of the U-shaped mounting plate 71 are fixedly provided with a torsion spring 74 sleeved on the outside of the transmission shaft 72. The lower end of the mounting cylinder 73 is fixedly provided with a force baffle 75. The outer wall of the U-shaped mounting plate 71 is also fixedly provided with an encoder 76. The input end of the encoder 76 is fixedly connected to one end of the transmission shaft 72.

[0025] The operating principle of the present invention is described as follows: when cleaning the road surface, the PLC controller controls the electric push rod 22 to push the electric rotary cleaning component 23 downward, so that the brush end of the electric rotary cleaning component 23 contacts the road surface, and the road surface is cleaned in a rotary manner, and the PLC controller controls the negative pressure pump 314 to work, and the negative pressure pump 314 forms a negative pressure suction force in the negative pressure cylinder 313, and then forms a negative pressure suction in the receiving cylinder 39 through the filter cylinder 311 and the dust bag 312, and then forms a negative pressure suction force in the suction pipe 33 through the connector 310, and cooperates with the suction head 34 to quickly suck away the dust swept up by the electric rotary cleaning component 23, and then falls into the filter cylinder 311 and the dust bag 312 for storage; When the dusty gas is sucked away through the suction pipe 33 and passes through the detection shell 41, the dust sensor 42 in the detection shell 41 monitors the dust content in the gas in real time. The dust sensor 42 adopts a laser dust sensor 42. The dust sensor 42 emits a laser beam. When dust particles in the air pass through the laser beam, they scatter the light. The dust sensor 42 calculates the dust concentration, that is, the dust content, according to the intensity and angle of the scattered light. The dust sensor 42 feeds back the dust concentration signal to the PLC controller. The PLC controller controls the spray pump 54 to work based on the dust condition on the road surface. The spray pump 54 cooperates with the spray pipe 52 to spray the water tank. The clean water in 51 is transported to the spray head 53, and then the road surface after cleaning is sprayed with water to reduce dust, which can effectively suppress the remaining dust from being raised, prevent secondary pollution, and make the cleaning environment cleaner. The PLC controller automatically adjusts the working power of the spray pump 54 based on the dust content of the gas monitored by the dust sensor 42. When the dust condition on the road surface is serious, the working power of the spray pump 54 is increased, and the amount of water sprayed is increased to maintain the humidity of the ground, so that the dust is better settled and dust is prevented. In areas with less dust, the amount of water sprayed is reduced, and water resources are reasonably allocated to areas with more dust, thereby improving the utilization rate of water resources and meeting the requirements of energy saving and environmental protection. When the cleaning mechanism 2 is working, when the dust sensor 42 detects that dust has entered, the PLC controller controls the electronic timer 43 to work. When the electronic timer 43 is in place, the PLC controller first controls the negative pressure pump 314 to stop working, and synchronously controls the first electric telescopic rod 31 and the second electric telescopic rod 36 to move. The first electric telescopic rod 31 cooperates with the fixed cylinder 32 to drive the suction pipe 33 to move upward, and the second electric telescopic rod 36 drives the fixed circular plate 37 to move upward, and the pushing amount and speed of the first electric telescopic rod 31 are greater than the pushing amount and speed of the second electric telescopic rod 36, thereby realizing the separation of the connecting head 310 at one end of the suction pipe 33 from the receiving cylinder 39, and the fixed circular plate 37 drives the filter screen cylinder 311 to move upward and separate from the negative pressure cylinder 313. At this time, the PLC controller controls the motor rotating assembly 38 to drive the second electric telescopic rod 36 to rotate, thereby making the fixed circular plate 37 move up and down. The filter screen cylinder 311 moves to the upper end of the negative pressure cylinder 313, and the PLC controller controls the first electric telescopic rod 31 and the second electric telescopic rod 36 to move in the opposite direction again, so that the connector 310 is connected to the upper end of the receiving cylinder 39 again, and the filter screen cylinder 311 at the lower end of the fixed circular plate 37 is sealed and connected to the negative pressure cylinder 313 again, so as to realize the rapid replacement of the filter screen cylinder 311. At this time, the negative pressure pump 314 is started again to continue the suction and dust removal work, and the dust sensor 42 monitors the dust content in the dust collection air. The PLC controller automatically changes the clock frequency or counting frequency division of the electronic timer 43 based on the dust concentration, and automatically adjusts the timing speed. Specifically, the higher the dust concentration, the faster the timing speed is adjusted, thereby shortening the interval time of the electronic timer timing in place, thereby increasing the replacement frequency of the filter screen cylinder 311, and realizing more timely replacement of the filter screen cylinder 311 to ensure cleaning efficiency. In the process of cleaning the road surface, the PLC controller controls the forward and reverse motor 62 to rotate forward, and the forward and reverse motor 62 drives the rotating screw 61 to rotate. Through the threaded sleeve effect of the rotating screw 61 and the L-shaped lifting plate 63, the L-shaped lifting plate 63 drives the obstacle height detection feedback mechanism 7 to move downward, so that the obstacle height detection feedback mechanism 7 moves downward to the front side of the cleaning mechanism 2. When encountering an obstacle, the obstacle will contact the force baffle plate 75, so that the force baffle plate 75 drives the mounting cylinder 73 to rotate through the rotation connection of the transmission shaft 72. Deflection, and the size of the deflection angle is fed back through the encoder 76. Specifically, the larger the deflection angle of the force baffle plate 75, the higher the height of the obstacle. When the deflection angle of the force baffle plate 75 reaches the threshold, it means that the height of the current obstacle will cause collision damage to the electric rotating cleaning component 23. At this time, the PLC controller controls the electric push rod 22 to drive the electric rotating cleaning component 23 to move upward, so as to avoid the obstacle from colliding with the electric rotating cleaning component 23, and to provide effective early warning protection for the electric rotating cleaning component 23.

[0026] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principle of the present invention should be included in the protection scope of the present invention.

Claims

1. An energy-saving sweeper capable of adjusting humidity, comprising a vehicle body (1), characterized in that: Also includes: A cleaning mechanism (2) is mounted at the lower end of the vehicle body (1); A dust suction mechanism (3) is installed at the lower end of the vehicle body (1) and is arranged on the rear side of the cleaning mechanism (2); A dust concentration detection mechanism (4) is installed at the air inlet end of the dust suction mechanism (3) and is electrically connected to the PLC controller. The PLC controller controls the dust suction mechanism (3) to automatically replace the filter components therein based on the dust concentration signal fed back by the dust concentration detection mechanism (4); An automatic spraying and humidifying mechanism (5) is installed in the vehicle body (1) and is electrically connected to a PLC controller, wherein the PLC controller controls the working power of the automatic spraying and humidifying mechanism (5) based on a dust concentration signal fed back by a dust concentration detection mechanism (4); A lifting mechanism (6) is arranged on the inner front side of the vehicle body (1); The obstacle height detection feedback mechanism (7) is installed on the moving end of the lifting mechanism (6) and is arranged on the front side of the cleaning mechanism (2).

2. The humidity-adjustable energy-saving sweeper according to claim 1, characterized in that: The cleaning mechanism (2) comprises a bracket (21) fixedly mounted on the bottom of the inner wall of the vehicle body (1), an electric push rod (22) fixedly inserted on the bracket (21), the lower movable end of the electric push rod (22) passing through the lower end of the vehicle body (1) and fixedly connected to an electric rotary cleaning assembly (23).

3. The humidity-adjustable energy-saving sweeper according to claim 2, characterized in that: The dust suction mechanism (3) comprises a first electric telescopic rod (31) fixedly connected to the bottom of the inner wall of the vehicle body (1); the upper movable end of the first electric telescopic rod (31) is fixedly connected to a fixed cylinder (32); a suction pipe (33) is fixedly sleeved in the fixed cylinder (32); the lower end of the suction pipe (33) passes through the lower end of the vehicle body (1) and is fixedly connected to a suction head (34); the suction head (34) is fixedly connected to one side of the electric rotary cleaning component (23); the suction pipe (33) is also provided with two sections of elastic corrugated telescopic tubes (35) located at the upper and lower sides of the dust concentration detection mechanism (4); the bottom of the inner wall of the vehicle body (1) is also fixedly installed with a second electric telescopic rod (36); the upper movable end of the second electric telescopic rod (36) is fixedly connected to a fixed cylinder (32); A fixed circular plate (37), a motor rotating assembly (38) for driving the second electric telescopic rod (36) to rotate is fixedly mounted on the bottom of the inner wall of the vehicle body (1), a plurality of receiving tubes (39) arranged in an annular pattern are evenly fixedly sleeved on the surface of the fixed circular plate (37), one end of the suction pipe (33) away from the suction head (34) is fixedly connected to a connector (310) corresponding to the upper end of the receiving tube (39), a filter screen tube (311) is threadedly connected to the outer wall of the lower end of the receiving tube (39), a dust bag (312) is mounted inside the filter screen tube (311), a negative pressure tube (313) with a sealing cover sleeved outside the filter screen tube (311) is fixedly mounted on the bottom of the inner wall of the vehicle body (1), and a negative pressure pump (314) is embedded at the bottom of the negative pressure tube (313).

4. The humidity-adjustable energy-saving sweeper according to claim 3, characterized in that: The dust concentration detection mechanism (4) comprises a detection shell (41) fixedly connected to the suction pipe (33), a dust sensor (42) being installed inside the detection shell (41), and an electronic timer (43) being fixedly installed on the outer wall of the detection shell (41).

5. The humidity-adjustable energy-saving sweeper according to claim 1, characterized in that: The automatic spray humidification mechanism (5) comprises a water storage tank (51) fixedly mounted on the bottom of the inner wall of the vehicle body (1); a spray pipe (52) is fixedly connected to the bottom side wall of the water storage tank (51); one end of the spray pipe (52) away from the water storage tank (51) passes through the lower end of the vehicle body (1) and is fixedly connected to a spray head (53); the spray head (53) is fixedly mounted on the bottom of the vehicle body (1); a spray pump (54) is also mounted on the spray pipe (52); and the spray pump (54) is fixedly mounted on the bottom of the inner wall of the vehicle body (1).

6. The humidity-adjustable energy-saving sweeper according to claim 1, characterized in that: The lifting mechanism (6) comprises a rotating screw rod (61) rotatably connected to the vehicle body (1); the rotating screw rod (61) is arranged vertically; a forward and reverse motor (62) for driving the rotating screw rod (61) to rotate is fixedly installed inside the vehicle body (1); an L-shaped lifting plate (63) is threadedly sleeved on the rod wall of the rotating screw rod (61); the lower end of the L-shaped lifting plate (63) passes through the lower end of the vehicle body (1) through a through opening formed at the bottom of the vehicle body (1) and is fixedly connected to the upper end of the obstacle height detection feedback mechanism (7).

7. The humidity-adjustable energy-saving sweeper according to claim 1, characterized in that: The obstacle height detection feedback mechanism (7) comprises a U-shaped mounting plate (71), an opposite side of the U-shaped mounting plate (71) is rotatably connected to a mounting cylinder (73) via a transmission shaft (72), a torsion spring (74) sleeved outside the transmission shaft (72) is fixedly mounted on the mounting cylinder (73) and the opposite side of the U-shaped mounting plate (71), a force baffle (75) is fixedly mounted on the lower end of the mounting cylinder (73), and an encoder (76) is also fixedly mounted on the outer wall of the U-shaped mounting plate (71), and an input end of the encoder (76) is fixedly connected to one end of the transmission shaft (72).

8. The humidity-adjustable energy-saving sweeper according to claim 6, characterized in that: A plurality of limit sliding rods (64) arranged parallel to the rotating screw rod (61) are fixedly mounted inside the vehicle body (1), and a limit sliding hole slidably sleeved with the limit sliding rod (64) is provided on the horizontal portion of the L-shaped lifting plate (63).

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