Novel high-pressure washing sweeper

Abstract

The invention discloses a novel high-pressure washing sweeper, which relates to the technical field of environmental sanitation equipment and comprises a sweeper body. In the using process, when the shear fork arms stretch and extend through the first nodes hinged to the extension plates, the bevel edges of the right triangles are synchronously prolonged in the expanding process till the right triangles formed by the rocker arms, the end plates and the shear fork arms are expanded into right trapezoids with larger areas. The state that the expansion assemblies are contracted to the two sides of the sweeper body is designed to be of a right triangle structure, the passing ability of the sweeper body located in a narrow section is improved, the expansion state of the expansion assemblies is designed to be of a right trapezoid structure formed by gradually changing the right triangle structure, and the stability of deformation operation is improved while the coverage area is expanded; according to the sweeper body, the operation areas of the two sides of the sweeper body can be expanded according to requirements, the cleaning area covered by single-time operation is effectively increased, and the cleaning efficiency is improved.

Description

Technical Field

[0001] The invention relates to the technical field of sanitation equipment, in particular to a novel high-pressure flushing sweeper. Background Art

[0002] Currently common vacuum suction type floor sweepers generally have wheels for traveling along the ground, at least one rotatably driven sweeping brush for sweeping the ground, and a vacuum trash can. With the help of such a floor sweeper, the ground, such as streets, sidewalks or parking lots, can be swept. At least one sweeping brush of the floor sweeper acts on the ground to be cleaned and has a function of guiding the swept material to a suction cup device, which sucks the swept material into the suction cup device and transports it to the trash can through a pipe connected thereto.

[0003] For cleaning under the vehicles in some parking lots and some places that cannot be cleaned by sweeping brushes, it is necessary to use high-pressure water spray or jet to flush the underside of the vehicles and narrow places, and then put forward the requirement of adjustable and controllable structure of high-pressure flushing to adapt to more usage scenarios. In addition, the existing sweepers have a narrow operating area. When cleaning in a wider area, they need to travel back and forth multiple times to achieve complete coverage, and the operating efficiency is not high.

[0004] Therefore, in view of this, the existing structural deficiencies are studied and improved, and a new type of high-pressure flushing sweeper is proposed. Summary of the invention

[0005] The purpose of the present invention is to provide a new type of high-pressure flushing sweeper to solve the problems raised in the above background technology.

[0006] To achieve the above-mentioned objectives, the present invention provides the following technical solutions: a new type of high-pressure flushing sweeper, comprising a sweeper body, a step which is higher in the front and lower in the rear is provided on the bottom plane of the sweeper body, and a suction port is connected to the right-angled surface where the step is provided, front brush discs are rotatably installed on both sides of the front end of the step, and middle brush discs are rotatably installed on both sides of the middle end of the step, a cab is provided at the front end of the top of the sweeper body, and a maintenance box is provided at the rear end of the top of the sweeper body, a water tank is provided on the top of the maintenance box, and a high-pressure water pump is externally connected to the water tank, a dirt tank is provided at the bottom of the maintenance box, and one side of the dirt tank is connected to the suction port, and the other side of the dirt tank is connected to the vacuum motor.

[0007] Furthermore, a drive assembly is fixed at the rear end of the step, and the drive assembly includes a mounting plate, a drive motor and a gear. The mounting plate is bolted to the bottom of the rear end of the step, and a drive motor built into the maintenance box is fixed to the top of the mounting plate, and a gear is fixedly connected to the output end of the drive motor.

[0008] Furthermore, the driving assembly also includes a telescopic rod and a Z-shaped gear rod, the telescopic rod is slidably installed on both sides of the mounting plate, and the Z-shaped gear rod is fixedly connected to the inner side of the telescopic rod, and the Z-shaped gear rod is meshed with the outer edge teeth of the gear.

[0009] Furthermore, the driving assembly also includes a U-shaped clamp and a connecting rod. The U-shaped clamp is fixedly connected to the outer side of the telescopic rod, and the opening end of the U-shaped clamp is connected to the connecting rod.

[0010] Furthermore, the mounting plate is externally connected to expansion components on both sides, and the expansion components include extension plates, connecting pins, scissor arms and hinged nodes. The extension plates are welded and fixed to both sides of the mounting plate, and connecting pins are fixed to the outer planes of the extension plates. The connecting pins are externally connected to scissor arms, and hinged nodes are provided at the connections of the "X"-shaped structures of the scissor arms. The first node of the scissor arms close to the extension plate is hinged to the connecting pin, and the second node of the scissor arms close to the extension plate is hinged to the connecting rod.

[0011] Furthermore, the expansion assembly also includes an end plate and a slide groove, the last node of the scissor arm away from the extension plate is hinged to the end plate, and a slide groove is axially opened on the inner side of the end plate.

[0012] Furthermore, the expansion component also includes a slider, a rotating pin, a rocker arm and a scraper strip. The slider is slidably installed inside the slide groove and is fixed to the rotating pin. The slider is rotatably connected to the rocker arm through the rotating pin, and the end of the rocker arm away from the slider is connected to the two sides of the front end of the step through the rotating pin. The rocker arm, end plate and scissor arm form a right-angled triangle structure with a variable hypotenuse, and a scraper strip is clamped at the bottom end of the rocker arm.

[0013] Furthermore, the hinged node at the connection of the scissor arms is hinged with a flushing assembly, which includes a tube body and a connecting plunger. A connecting plunger is fixed to the top of the back side of the tube body, and the tube body is hinged to the hinged node at the connection of the scissor arms through the connecting plunger.

[0014] Furthermore, the flushing assembly also includes a three-way interface, the top of the tube body is connected to a three-way interface, the three-way interfaces between adjacent tube bodies are connected through a bellows, and the three-way interface at the head end is connected to the high-pressure water pump through a pipeline.

[0015] Furthermore, the flushing assembly also includes a flushing nozzle, a flow channel, an impeller and an auxiliary brush plate. The flushing nozzle is connected to the bottom of the front side of the tube body, and the flow channel is connected between the flushing nozzle and the three-way interface. The impeller is rotatably installed at the narrowing part of the flow channel cross-section through a bracket, and the impeller is coaxially connected to the auxiliary brush plate, and the auxiliary brush plate is rotatably matched with the top of the tube body through a sealed bearing.

[0016] The present invention provides a novel high-pressure washing sweeper, which has the following beneficial effects: 1. During the use of the present invention, when the scissor arms are extended through the first node hinged to the extension plate, the hypotenuse of the right triangle is extended synchronously during the extension process until the right triangle composed of the rocker arm, the end plate and the scissor arms is extended into a right trapezoid with a larger area. The present application designs the state of the extension assembly when it is retracted to both sides of the sweeper body as a right triangle structure through the linkage cooperation of the drive assembly and the extension assembly, thereby improving the passability of the sweeper body in narrow areas, and designs the expanded state of the extension assembly as a right trapezoid structure gradually formed by the right triangle structure, thereby expanding the coverage area and improving the stability of the deformation operation, so that the sweeper body of the present application can expand the operating area on both sides of the body according to needs, effectively increasing the cleaning area covered by a single operation, and improving the cleaning efficiency; 2. During the use of the present invention, the connecting plunger at the top of the back side of the tube body of the present invention is connected to the hinge node of the scissor arm, so the flushing components are spread out at equal intervals during the expansion and extension of the scissor arm. The cleaning liquid pumped into the flow channel through the three-way interface is sprayed out by the flushing nozzle at the bottom of the front side of the tube body, so as to realize high-pressure flushing of the right-angle trapezoidal coverage area composed of the rocker arm, the end plate and the scissor arm. On the other hand, the flow rate of the cleaning liquid is accelerated when passing through the narrow part of the flow channel, and the lift is generated by flushing the wing-shaped blades of the impeller to drive its rotation, and the auxiliary brush disc coaxial with the bottom of the impeller is driven to rotate, so as to clean and scrub the area after the cleaning liquid is sprayed, thereby improving the cleaning effect of the bottom of the vehicle; 3. During the use of the present invention, when cleaning the bottom of the vehicle, the cleaning liquid sprayed by the flushing nozzle is blocked by the scraper strip at the bottom of the rocker arm, so as to avoid over-range spraying and flushing, which causes the sewage generated during cleaning to flow to the adjacent parking space and cause pollution. When the cleaning operation of the bottom of the vehicle is completed and the expansion assembly is retracted, the driving motor rotates in the opposite direction to cause the right-angled trapezoid composed of the rocker arm, the end plate and the scissor arm to shrink to the initial right-angled triangle structure. While the area is reduced, the scraper at the bottom of the rocker arm pushes the accumulated liquid and dirt to the middle brush plate on both sides of the step. Under the brushing action of the middle brush plate, the accumulated liquid and dirt are guided to the suction port of the right-angled surface where the step is opened. The vacuum motor generates negative pressure in the dirt box, sucks the pushed accumulated liquid and dirt into the dirt box, and collects and processes the accumulated liquid and dirt confined in the expansion assembly, so that the bottom of the vehicle is clean and dry after cleaning, and there will be no problems of residual dirt and liquid overflow, thereby improving the cleaning effect. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 It is a structural schematic diagram of the overall perspective of the device of the present invention; Figure 2 This is a schematic diagram of the overall structure of the device of the present invention from a second perspective; Figure 3 It is a partial structural schematic diagram of the device of the present invention; Figure 4 This is a schematic diagram of the structure of the drive assembly of the present invention; Figure 5 This is a schematic diagram of the structure of the expansion component of the present invention; Figure 6 This is a schematic diagram of the scissor frame structure of the present invention; Figure 7 It is a schematic diagram of the structure of the flushing component of the present invention.

[0018] In the figure: 1. Sweeper body; 2. Step; 3. Inlet; 4. Front brush plate; 5. Middle brush plate; 6. Cab; 7. Preparation box; 8. Water tank; 9. High-pressure water pump; 10. Dirt box; 11. Vacuum motor; 12. Drive assembly; 1201. Mounting plate; 1202. Drive motor; 1203. Gear; 1204. Telescopic rod; 1205. Z-shaped gear rod; 1206. U-shaped clip; 1207. Connecting rod; 13. Extension assembly; 1 301, extension plate; 1302, connecting pin; 1303, scissor arm; 1304, hinge node; 1305, end plate; 1306, slide groove; 1307, slider; 1308, rotating pin; 1309, rocker arm; 1310, scraper; 14, flushing assembly; 1401, pipe body; 1402, connecting plunger; 1403, three-way interface; 1404, flushing nozzle; 1405, flow channel; 1406, impeller; 1407, auxiliary brush plate. DETAILED DESCRIPTION

[0019] The following embodiments of the present invention are described in further detail with reference to the accompanying drawings and examples. The following embodiments are used to illustrate the present invention but are not intended to limit the scope of the present invention. See also Figure 1 to Figure 2 The present invention provides a technical solution: a new type of high-pressure washing sweeper, comprising a sweeper body 1, a step 2 with a high front and a low rear is provided on the bottom plane of the sweeper body 1, and a suction port 3 is connected to the right-angled surface where the step 2 is provided, front brush discs 4 are rotatably installed on both sides of the front end of the step 2, and middle brush discs 5 are rotatably installed on both sides of the middle end of the step 2, a cab 6 is provided at the front end of the sweeper body 1, and a maintenance box 7 is provided at the rear end of the top of the sweeper body 1, a water storage tank 8 is provided on the top of the maintenance box 7, and the water storage tank 8 is externally connected to a high-pressure water pump 9, a dirt box 10 is provided at the bottom of the maintenance box 7, and one side of the dirt box 10 is connected to the suction port 3, and the other side of the dirt box 10 is connected to a vacuum motor 11; The specific operation is as follows: when cleaning the bottom of the vehicle, the cleaning liquid sprayed by the flushing nozzle 1404 is blocked by the scraper strip 1310 at the bottom of the rocker arm 1309 to prevent the wastewater generated during cleaning from flowing to the adjacent parking space and causing pollution. When the cleaning operation at the bottom of the vehicle is completed and the expansion assembly 13 is retracted, the drive motor 1202 rotates in the opposite direction to shrink the right-angled trapezoid formed by the rocker arm 1309, the end plate 1305 and the scissor arm 1303 to the initial right-angled triangle structure, while the area is reduced. When the step 2 is pulled out of the vehicle, the scraper at the bottom of the rocker arm 1309 pushes the accumulated liquid and dirt to the middle brush disc 5 on both sides of the step 2. Under the scrubbing action of the middle brush disc 5, the accumulated liquid and dirt are guided to the suction port 3 at the right angle surface of the step 2. The vacuum motor 11 generates negative pressure in the dirt box 10, sucks the pushed accumulated liquid and dirt into the dirt box 10, and collects and processes the accumulated liquid and dirt confined in the expansion component 13 in a centralized manner, so that the bottom of the vehicle is clean and dry after cleaning, and there will be no problems of dirt left and liquid overflow, thereby improving the cleaning effect. See also Figures 3 to 5A driving assembly 12 is fixed to the rear end of the step 2, and the driving assembly 12 includes a mounting plate 1201, a driving motor 1202 and a gear 1203. The mounting plate 1201 is bolted to the bottom of the rear end of the step 2, and the driving motor 1202 built into the preparation box 7 is fixed to the top of the mounting plate 1201, and the output end of the driving motor 1202 is fixedly connected to the gear 1203. The driving assembly 12 also includes a telescopic rod 1204 and a Z-shaped gear rod 1205. The telescopic rod 1204 is slidably installed on both sides of the mounting plate 1201, and the Z-shaped gear rod 1205 is fixedly connected to the inner side of the telescopic rod 1204, and The Z-shaped gear rod 1205 meshes with the outer edge teeth of the gear 1203. The driving assembly 12 also includes a U-shaped clip 1206 and a connecting rod 1207. The U-shaped clip 1206 is fixedly connected to the outer side of the telescopic rod 1204, and the opening end of the U-shaped clip 1206 is connected to the connecting rod 1207. The two sides of the mounting plate 1201 are externally connected with the expansion assembly 13. The expansion assembly 13 includes an extension plate 1301, a connecting pin 1302, a scissor arm 1303 and a hinge node 1304. The extension plate 1301 is welded and fixed to the two sides of the mounting plate 1201, and the connecting pin 1302 is fixed to the outer plane of the extension plate 1301. 2. The connecting pin 1302 is externally connected to a scissor arm 1303, and a hinge node 1304 is provided at the connection of the "X"-shaped structure of the scissor arm 1303. The first node of the scissor arm 1303 close to the extension plate 1301 is hinged to the connecting pin 1302, and the second node of the scissor arm 1303 close to the extension plate 1301 is hinged to the connecting rod 1207. The expansion component 13 also includes an end plate 1305 and a slide groove 1306. The last node of the scissor arm 1303 away from the extension plate 1301 is hinged to the end plate 1305, and a slide groove 1306 is axially opened on the inner side of the end plate 1305. The expansion component 13 also includes a slider 1307, a rotating pin 1308, a rocker arm 1309 and a scraper strip 1310. The slider 1307 is slidably installed inside the slide groove 1306, and the slider 1307 is fixed to the rotating pin 1308. The slider 1307 is rotatably connected to the rocker arm 1309 through the rotating pin 1308, and the end of the rocker arm 1309 away from the slider 1307 is connected to the two sides of the front end of the step 2 through the rotating pin 1308. The rocker arm 1309, the end plate 1305 and the scissor arm 1303 form a right-angled triangle structure with a variable hypotenuse, and the scraper strip 1310 is clamped at the bottom end of the rocker arm 1309; The specific operation is as follows: the drive motor 1202 is activated and the meshing transmission is carried out through the outer edge gear teeth of the gear 1203 and the Z-shaped gear rods 1205 on both sides, thereby driving the telescopic rods 1204 on both sides to slide out synchronously on both sides of the mounting plate 1201. In the present application, the U-shaped frame at the output end of the telescopic rod 1204 is hinged to the second node of the scissor arm 1303 through the connecting rod 1207, so that the scissor arm 1303 is extended through the first node hinged to the extension plate 1301. Since one of the right-angled sides of the right-angled triangle formed by the rocker arm 1309, the end plate 1305 and the scissor arm 1303 is extended while the other right-angled side remains unchanged, the hypotenuse of the above-mentioned right-angled triangle is extended synchronously during the expansion process, that is, the slider 1307 drives the rocker arm 1309 to be located at the end node of the scissor arm 1303. The point-hinged end plate 1305 slides in the inner slide groove 1306 to extend the length of the hypotenuse until the right triangle formed by the rocker arm 1309, the end plate 1305 and the scissor arm 1303 is expanded into a right-angled trapezoid with a larger area. The present application uses the linkage cooperation of the drive component 12 and the expansion component 13 to design the state of the expansion component 13 when it is retracted on both sides of the sweeping machine body 1 as a right-angled triangle structure, thereby improving the passability of the sweeping machine body 1 in narrow areas, and the expanded state of the expansion component 13 is designed as a right-angled trapezoid structure gradually formed by the right-angled triangle structure, thereby expanding the coverage area and improving the stability of the deformation operation, so that the sweeping machine body 1 of the present application can expand the operating area on both sides of the body according to needs, effectively increasing the cleaning area covered by a single operation, and improving the cleaning efficiency; See also Figure 6 to Figure 7 The hinge node 1304 at the connection of the scissor arm 1303 is hinged with a flushing assembly 14, and the flushing assembly 14 includes a pipe body 1401 and a connecting plunger 1402. The connecting plunger 1402 is fixed to the top of the back of the pipe body 1401, and the pipe body 1401 is hinged to the hinge node 1304 at the connection of the scissor arm 1303 through the connecting plunger 1402. The flushing assembly 14 also includes a three-way interface 1403, and the top of the pipe body 1401 is connected with a three-way interface 1403, and the three-way interfaces 1403 between adjacent pipe bodies 1401 are connected through a bellows, and the three-way interface 1403 at the head end is connected to the pipe body 1401. The through interface 1403 is connected to the high-pressure water pump 9 through a pipeline, and the flushing component 14 also includes a flushing nozzle 1404, a flow channel 1405, an impeller 1406 and an auxiliary brush plate 1407. The flushing nozzle 1404 is connected to the bottom of the front of the tube body 1401, and the flow channel 1405 is connected between the flushing nozzle 1404 and the three-way interface 1403. The impeller 1406 is rotatably installed at the narrowing section of the flow channel 1405 through a bracket, and the impeller 1406 is coaxially connected to the auxiliary brush plate 1407, and the auxiliary brush plate 1407 is rotatably matched with the top of the tube body 1401 through a sealed bearing; The specific operation is as follows: when the sweeping machine of the present application is used for cleaning operations under the parking lot, the above-mentioned expansion component 13 can also be deformed and expanded at the bottom of the vehicle, the high-pressure water pump 9 is activated, and the cleaning agent in the water tank 8 is pumped to each flushing component 14 in sequence through the three-way interface 1403. The connecting plunger 1402 at the top of the back side of the tube body 1401 of the present application is connected to the hinge node 1304 of the scissor arm 1303, so during the expansion and extension of the scissor arm 1303, the flushing components 14 are evenly spaced and pumped into the flow channel through the three-way interface 1403. On the one hand, the cleaning liquid 1405 is sprayed out by the flushing nozzle 1404 at the bottom of the front side of the tube body 1401, achieving high-pressure flushing of the right-angled trapezoidal coverage area composed of the rocker arm 1309, the end plate 1305 and the scissor arm 1303. On the other hand, the cleaning liquid flows faster when passing through the narrow part of the flow channel 1405, and the wing-shaped blades of the impeller 1406 are flushed to generate lift to drive its rotation, and drive the auxiliary brush plate 1407 coaxial with the bottom of the impeller 1406 to rotate, so as to clean and brush the area after the cleaning liquid is sprayed, thereby improving the cleaning effect of the bottom of the vehicle.

[0020] In summary, when the new high-pressure flushing sweeper is used, the driving motor 1202 is activated and the outer edge gear teeth of the gear 1203 are meshed with the Z-shaped gear rods 1205 on both sides, thereby driving the telescopic rods 1204 on both sides to slide out synchronously on both sides of the mounting plate 1201. In the present application, the U-shaped frame at the output end of the telescopic rod 1204 is hinged to the second node of the scissor arm 1303 through the connecting rod 1207, so that the scissor arm 1303 is extended through the first node hinged to the extension plate 1301. Since one of the right-angled sides of the right-angled triangle formed by the rocker arm 1309, the end plate 1305 and the scissor arm 1303 is extended while the other right-angled side remains unchanged, the hypotenuse of the above-mentioned right-angled triangle is extended synchronously during the expansion process, that is, the slider 13 07 drives the rocker arm 1309 to slide in the inner groove 1306 of the end plate 1305 hinged at the end node of the scissor arm 1303 to extend the length of the hypotenuse until the right triangle formed by the rocker arm 1309, the end plate 1305 and the scissor arm 1303 is expanded into a right-angled trapezoid with a larger area. The present application uses the linkage cooperation of the driving component 12 and the expansion component 13 to design the state of the expansion component 13 when it is retracted to both sides of the sweeping machine body 1 as a right-angled triangle structure, thereby improving the passability of the sweeping machine body 1 in narrow areas, and designs the expanded state of the expansion component 13 as a right-angled trapezoid structure gradually transformed from a right-angled triangle structure, thereby expanding the coverage area and improving the stability of the deformation operation, so that the sweeping machine body 1 of the present application can be expanded according to needs. The working area on both sides of the vehicle body can effectively increase the cleaning area covered by a single operation and improve the cleaning efficiency. When the sweeper of the present application is used for cleaning operations under the car in the parking lot, the above-mentioned expansion component 13 can also be deformed and expanded at the bottom of the car, and the high-pressure water pump 9 can be activated and the cleaning agent in the water tank 8 can be pumped to each flushing component 14 in sequence through the three-way interface 1403. The connecting plunger 1402 at the top of the back side of the tube body 1401 of the present application is connected to the hinge node 1304 of the scissor arm 1303. Therefore, during the expansion and extension of the scissor arm 1303, the flushing components 14 are evenly spaced. The cleaning liquid pumped into the flow channel 1405 by the three-way interface 1403 is sprayed out by the flushing nozzle 1404 at the bottom of the front side of the tube body 1401, so as to achieve The right-angle trapezoidal coverage area composed of the rocker arm 1309, the end plate 1305 and the scissor arm 1303 is high-pressure flushed. On the other hand, the cleaning liquid accelerates when passing through the narrow part of the flow channel 1405, and the lift is generated by flushing the wing-shaped blades of the impeller 1406 to drive its rotation, and drive the auxiliary brush plate 1407 coaxial with the bottom of the impeller 1406 to rotate, and the area after the cleaning liquid is sprayed is cleaned and scrubbed, thereby improving the cleaning effect of the bottom of the vehicle. When cleaning the bottom of the vehicle, the cleaning liquid sprayed by the flushing nozzle 1404 is blocked by the scraper bar 1310 at the bottom of the rocker arm 1309, so as to avoid over-range spraying and flushing, so that the sewage generated during cleaning flows to the adjacent parking space and causes pollution. When the cleaning operation of the bottom of the vehicle is completed and the expansion component 13 is retracted,The reverse rotation of the driving motor 1202 causes the right-angled trapezoid formed by the rocker arm 1309, the end plate 1305 and the scissor arm 1303 to shrink into the initial right-angled triangle structure. While the area is reduced, the scraper at the bottom of the rocker arm 1309 pushes the accumulated liquid and dirt to the middle brush disc 5 on both sides of the step 2. Under the scrubbing action of the middle brush disc 5, the accumulated liquid and dirt are guided to the suction port 3 on the right-angled surface of the step 2. The vacuum motor 11 generates negative pressure in the dirt box 10, sucks the pushed accumulated liquid and dirt into the dirt box 10, and collects and processes the accumulated liquid and dirt confined in the expansion component 13 in a centralized manner, so that the bottom of the vehicle is clean and dry after cleaning, and there will be no problems of dirt left and liquid overflow, thereby improving the cleaning effect.

[0021] The embodiments of the present invention are given for the purpose of illustration and description, and are not intended to be exhaustive or to limit the invention to the disclosed forms. Many modifications and variations will be apparent to those of ordinary skill in the art. The embodiments are selected and described in order to better illustrate the principles and practical applications of the present invention and to enable those of ordinary skill in the art to understand the present invention and thereby design various implementations with various modifications suitable for specific uses.

Claims

1. A novel high-pressure washing sweeper, comprising a sweeper body (1), characterized in that: The bottom plane of the sweeping machine body (1) is provided with a step (2) which is higher in the front and lower in the rear, and the right-angled surface where the step (2) is provided is connected to a suction port (3), front brush discs (4) are rotatably mounted on both sides of the front end of the step (2), and middle brush discs (5) are rotatably mounted on both sides of the middle end of the step (2), a cab (6) is provided at the top front end of the sweeping machine body (1), and a maintenance box (7) is provided at the top rear end of the sweeping machine body (1), a water storage tank (8) is provided at the top of the maintenance box (7), and the water storage tank (8) is externally connected to a high-pressure water pump (9), a dirt box (10) is provided at the bottom of the maintenance box (7), one side of the dirt box (10) is connected to the suction port (3), and the other side of the dirt box (10) is connected to a vacuum motor (11).

2. A new type of high-pressure washing and sweeping machine according to claim 1, characterized in that: A drive assembly (12) is fixed to the rear end of the step (2), and the drive assembly (12) comprises a mounting plate (1201), a drive motor (1202) and a gear (1203); the mounting plate (1201) is bolted to the bottom of the rear end of the step (2), and a drive motor (1202) built into the maintenance box (7) is fixed to the top of the mounting plate (1201), and the gear (1203) is fixedly connected to the output end of the drive motor (1202).

3. A new type of high-pressure washing and sweeping machine according to claim 2, characterized in that: The driving assembly (12) further comprises a telescopic rod (1204) and a Z-shaped gear rod (1205); the telescopic rod (1204) is slidably mounted on both sides of the mounting plate (1201); the Z-shaped gear rod (1205) is fixedly connected to the inner side of the telescopic rod (1204); and the Z-shaped gear rod (1205) is meshed with the outer edge teeth of the gear (1203).

4. A new type of high-pressure washing and sweeping machine according to claim 3, characterized in that: The driving assembly (12) further comprises a U-shaped clamp (1206) and a connecting rod (1207); the U-shaped clamp (1206) is fixedly connected to the outside of the telescopic rod (1204), and the opening end of the U-shaped clamp (1206) is connected to the connecting rod (1207).

5. A new type of high-pressure washing and sweeping machine according to claim 4, characterized in that: The two sides of the mounting plate (1201) are externally connected to an expansion component (13), and the expansion component (13) comprises an extension plate (1301), a connecting pin (1302), a scissor arm (1303) and a hinge node (1304). The extension plate (1301) is welded and fixed to the two sides of the mounting plate (1201), and a connecting pin (1302) is fixed on the outer plane of the extension plate (1301). The connecting pin (1302) is externally connected to the scissor arm (1303), and a hinge node (1304) is provided at the connection of the "X"-shaped structure of the scissor arm (1303). The first node of the scissor arm (1303) close to the extension plate (1301) is hinged to the connecting pin (1302), and the second node of the scissor arm (1303) close to the extension plate (1301) is hinged to the connecting rod (1207).

6. A new type of high-pressure washing and sweeping machine according to claim 5, characterized in that: The expansion assembly (13) further comprises an end plate (1305) and a slide groove (1306); the last node of the scissor arm (1303) away from the extension plate (1301) is hinged to the end plate (1305), and the slide groove (1306) is axially provided on the inner side of the end plate (1305).

7. A new type of high-pressure washing and sweeping machine according to claim 6, characterized in that: The expansion component (13) further comprises a slider (1307), a rotating pin (1308), a rocker arm (1309) and a scraper strip (1310); the slider (1307) is slidably mounted inside the slide groove (1306), and the slider (1307) is fixed to the rotating pin (1308); the slider (1307) is rotatably connected to the rocker arm (1309) via the rotating pin (1308); and one end of the rocker arm (1309) away from the slider (1307) is connected to both sides of the front end of the step (2) via the rotating pin (1308); the rocker arm (1309), the end plate (1305) and the scissor arm (1303) form a right-angled triangle structure with a variable hypotenuse; and the scraper strip (1310) is clamped at the bottom end of the rocker arm (1309).

8. A new type of high-pressure washing and sweeping machine according to claim 7, characterized in that: The hinged node (1304) at the connection of the scissor arms (1303) is hinged with a flushing assembly (14), and the flushing assembly (14) comprises a tube body (1401) and a connecting plunger (1402). The connecting plunger (1402) is fixed to the top of the back side of the tube body (1401), and the tube body (1401) is hinged with the hinged node (1304) at the connection of the scissor arms (1303) via the connecting plunger (1402).

9. A new type of high-pressure washing and sweeping machine according to claim 8, characterized in that: The flushing assembly (14) further comprises a three-way interface (1403), the top of the tube body (1401) is connected to a three-way interface (1403), the three-way interfaces (1403) between adjacent tube bodies (1401) are connected via a bellows, and the three-way interface (1403) at the head end is connected to the high-pressure water pump (9) via a pipeline.

10. A new type of high-pressure washing and sweeping machine according to claim 9, characterized in that: The flushing assembly (14) further comprises a flushing nozzle (1404), a flow channel (1405), an impeller (1406) and an auxiliary brush plate (1407); the front bottom of the tube body (1401) is connected to the flushing nozzle (1404), and the flow channel (1405) is connected between the flushing nozzle (1404) and the three-way interface (1403); an impeller (1406) is rotatably mounted at a narrowed cross-section of the flow channel (1405) via a bracket, and the impeller (1406) is coaxially connected to the auxiliary brush plate (1407), and the auxiliary brush plate (1407) is rotatably matched with the top of the tube body (1401) via a sealed bearing.

Images