Multi-purpose work vehicle for road clearing

Abstract

The present invention discloses a multifunctional working vehicle for road cleaning, which includes a vehicle body, a power system, a hydraulic system, a traveling assembly, a spraying system and a cleaning assembly arranged on the vehicle body. The power system is used to provide power for traveling and cleaning, the hydraulic system is used to assist in adjusting the height and direction of the cleaning assembly, and the spraying system has a pressure-regulating booster pump and a self-adaptive adjustable nozzle assembly. The nozzle assembly automatically adjusts the channel size, the liquid outlet size and the spraying direction when the water pressure changes. The present application adds a liquid spraying device to the sweeping vehicle to spray water when sweeping the road to reduce dust and avoid environmental pollution, or sprays liquid snow melting agent after pushing snow to assist in melting the snow layer that is difficult to be removed, thereby ensuring the cleanliness of the road surface; wherein, during spraying, the pressure of the sprayed liquid is adjusted by adjusting the pressure of the booster pump, and when the pressure is adjusted, the first valve head will compress the spring and jointly adjust the effective cross-sectional area of the liquid outlet channel with the second valve head. At the same time, the valve stem will push the adjusting rod to rotate, thereby driving the sealing plate to rotate to adjust the size and direction of the liquid outlet to adapt to the change of adaptive pressure, ensuring that the spraying area is effectively sprayed. In addition, the same power system is matched with two sets of cleaning devices to clean ordinary roads and snow-covered roads respectively, thereby improving the practicality of the entire machine.

Description

Technical Field

[0001] The present invention relates to an advanced environmental protection industry, and in particular to a multifunctional working vehicle for road clearing. Background Art

[0002] With the rapid development of road infrastructure in my country, the road mileage in my country exceeded 5 million kilometers in 2020. In order to reduce the workload of road cleaning personnel and improve cleaning efficiency, the demand for road sweepers is increasing.

[0003] However, many road sweepers are prone to dust pollution during the cleaning process. The patent with application number CN202110715578.5 discloses a water mist spraying device for road sweepers that can achieve the dust reduction function, including a water mist spraying dust reduction device assembly and a pressurizing device assembly. The water mist spraying dust reduction device assembly includes an inclined atomizing nozzle, a vertical water nozzle, a nozzle fixing water pipe, a single spray interface, a double spray interface, a nozzle fixing water pipe end cover, a three-way port and other structures; the pressurizing device assembly includes a high-pressure water pipe, a pressurized gear pump, a water pipe, a U-shaped clamp, a water storage tank and other parts. The present invention solves the problem that the spraying device of the existing road sweeper cannot effectively suppress the dust at the rear and front of the disc brush at the same time, or easily causes water accumulation on the road surface and reduces the cleaning efficiency. It has the advantages of effectively suppressing dust pollution caused by the disc brush, not reducing the cleaning efficiency, and saving water.

[0004] However, it has the following two disadvantages. First, the size of the water outlet cannot be adaptively adjusted according to the water pressure and the angle of the water outlet cannot be adjusted. If the water pressure increases, the coverage range of the sprayed water column will expand, resulting in spraying to places where spraying is not required, which is ineffective spraying; second, if there is snow on the bottom surface, the snow cannot be cleared. Summary of the Invention

[0005] Based on the shortcomings of the prior art that when sweeping vehicles use spraying devices to reduce dust when there is a lot of dust, the spraying angle cannot be adjusted according to the spraying water pressure and the snow-covered road surface cannot be cleaned, the present invention provides a multifunctional working vehicle for road cleaning.

[0006] The technical solution adopted by the present invention to solve the above technical problems is:

[0007] Multi-purpose work vehicles for road clearing, including:

[0008] The vehicle body has a cab at the front and a dump bucket at the rear;

[0009] A power system for providing power to the traveling component and the cleaning component;

[0010] A hydraulic system for powering the dump bucket and cleaning assembly;

[0011] A traveling component, which is used for traveling on a road;

[0012] The spraying system includes a liquid storage tank arranged on the top of the cab, a booster pump arranged on the top of the cab, a pipeline and two sets of nozzle assemblies arranged on both sides of the cab for spraying forward. The liquid storage tank, the booster pump and the nozzle assembly are connected by a pipeline. The nozzle assembly includes a hard nozzle, an electric control valve arranged at the liquid inlet end of the hard nozzle, a hemispherical end cover with a liquid outlet arranged at the liquid outlet end of the hard nozzle and a movable core slidably arranged inside the hard nozzle. The movable core includes a valve stem and a first frustum-shaped valve head and a second frustum-shaped valve head arranged on the valve stem. The outer diameters of the first valve head and the second valve head gradually increase from the liquid inlet end to the liquid outlet end. A first annular platform and a second annular platform are provided inside the hard nozzle. A frustum-shaped hole matching the shape of the first valve head is provided at the left end of the first annular platform. An elastic spring is provided on the valve stem. One end of the elastic spring abuts against one end of the second annular platform. The other end abuts against the end of the first valve head to apply an elastic force to the first valve head to slide toward the liquid inlet end, the other end of the second annular platform is provided with a truncated cone-shaped hole matching the shape of the second valve head, one end of the valve stem is provided with a supporting ring with a through hole to support it, the end of the adjusting block is provided with a quarter-spherical sealing plate, the lower end of the sealing plate has a guide slope, the spherical sealing plate is located at the upper half of the inner wall of the end cover, the adjusting block is provided with a notch and the end of the valve stem extends into the notch and is limited in the notch, wherein the second valve head and the truncated cone-shaped hole wall on the second boss are always not in contact. When the pressure of the booster pump increases, the valve stem moves toward the liquid outlet end, the liquid outlet channel at the first valve head becomes larger, and the liquid outlet channel at the second valve head follows, pushing the sealing plate to rotate downward to partially block the liquid outlet to adjust the size of the liquid outlet and change the direction of liquid spraying through the guide slope, so that the angle and strength of the spraying are finally adjusted;

[0013] The cleaning component includes a sweeping component or a snow shoveling component. The sweeping component provides cleaning power through a power system and provides power for up and down flipping and left and right angle adjustment through a hydraulic system. The snow shoveling component provides power for up and down flipping and left and right angle adjustment through a hydraulic system.

[0014] Preferably, a sealing plate is provided at the liquid outlet end of the hard nozzle, an eccentric hole is provided on the sealing plate, an end cover is provided at the eccentric hole, both ends of the adjusting block are rotatably connected to the side wall of the hard nozzle, and a torsion spring is provided between the adjusting block and the hard nozzle for resetting the adjusting block.

[0015] Preferably, the power system includes an engine, a clutch, and a gearbox connected in series. The gearbox leads to a main output shaft for dual-end power output. One end of the main output shaft is connected to a long shaft via a coupling. The output end of the long shaft is connected to a two-claw transmission shaft via two couplings. The other end of the main output shaft is provided with a first bevel gear.

[0016] Preferably, the traveling assembly includes a front axle gearbox and a rear axle gearbox for two front traveling wheels and two rear traveling wheels, and the front axle gearbox and the rear axle gearbox are respectively provided with a front differential and a rear differential, and the rear differential has a rear power input shaft and three rear power input shafts, and the rear power input shaft extends out of the rear axle gearbox and is connected to the first bevel gear, wherein the two rear power output shafts are respectively the rear wheel axles for driving the two rear traveling wheels to rotate, the front differential has a front power input shaft and two front power output shafts, and the other rear power output shaft is connected to the front power input shaft by two couplings and a transmission long shaft, and the two front power output shafts are respectively the front wheel axles for driving the two front traveling wheels to travel.

[0017] Preferably, the hydraulic system includes a hydraulic power assembly and three hydraulic cylinders connected to the hydraulic power assembly through pipelines, one of the hydraulic cylinders is arranged between the vehicle body and the dump bucket to drive the dump bucket to flip, and the other two hydraulic cylinders are arranged at the front end of the vehicle body and are used to drive the cleaning component to flip up and down and rotate left and right.

[0018] Preferably, the cleaning assembly includes a bearing seat arranged on the front side of the vehicle body, a frame connected to the bearing seat, a roller brush assembly arranged on the frame and a cover body under the roller brush assembly, the middle part of the bearing seat has a through space and a groove-shaped mounting seat body is hinged on both sides thereof, the frame is connected to the mounting seat body and a hydraulic cylinder is provided between the frame and the vehicle body for driving the frame and the mounting seat body to flip up and down, the coupling is provided in the through hole and connected to the two-claw transmission shaft, the frame has a hollow connecting cylinder body and the connecting cylinder body is fixedly connected to the mounting seat body, a roller input shaft connected to the two-claw transmission shaft for transmission and driving the roller brush assembly to rotate is provided in the connecting cylinder body, and a shaft shell for covering the roller input shaft inside is provided on the frame, and a bearing is provided in the shaft shell body to support the roller input shaft.

[0019] Preferably, the roller brush assembly includes a left roller and a right roller whose outer ends are rotatably connected to the left and right sides of the frame respectively. The inner sides of the left roller and the right roller are provided with the same roller output shaft which is fixedly connected or transmission connected to the two and extends into the shaft housing. The roller input shaft and the roller output shaft are connected by a set of bevel gears located in the shaft housing and meshing with each other. A number of cleaning brushes are provided on the left roller and the right roller.

[0020] Preferably, the frame includes a first frame body with a connecting cylinder and a second frame body with a shaft housing, and the first frame body and the second frame body are horizontally rotatably connected; the roller input shaft includes a first shaft section and a second shaft section and a universal joint structure is provided therebetween, and the universal joint structure is located at the connection point where the first frame body and the second frame body are horizontally rotatably connected, and a hydraulic cylinder for driving the second frame body to rotate horizontally is provided between the first frame body and the second frame body; the second frame body is provided with an outer square tube with a top seal, a fixed square tube is slidingly provided inside the outer square tube, a universal wheel for support is provided at the bottom of the fixed square tube, a nut sleeve is provided at the top of the fixed square tube, a screw rod is threadedly connected to the fixed nut sleeve, the screw rod passes through the outer square rod and is connected to a handle for rotating the screw rod, and when the handle is rotated, the fixed square tube is vertically extended and contracted to adjust the height of the universal wheel.

[0021] Preferably, the left roller and the right roller are symmetrical structures, the left roller includes annular spacers and annular seats that are alternately and stacked, and circular arrays of brushes are evenly distributed on the annular seat. The inner diameters of the spacers and the annular seat are the same and both are provided with at least 3 circular arrays of support rods / tubes that are evenly distributed and rest against the inner walls of both. The support rods / tubes are connected by connecting rods to form an integrated support frame, and a number of groups of limit blocks are provided on the inner wall of the annular seat. The number of groups of limit blocks is the same as the number of support rods / tubes and the arrays are evenly distributed on the inner wall of the annular seat, and fixed sealing plates are provided at both end portions of the support rods / tubes, wherein the inner fixed sealing plate is fixedly connected or transmission connected to the roller output shaft, and the outer fixed sealing plate is fixedly connected or transmission connected to a roller brush balancing shaft, and the roller brush balancing shaft rotates in coordination with the frame.

[0022] Preferably, the snow shovel assembly includes two groups of first connecting ears arranged on the vehicle body, a flip frame rotatably connected to the two groups of first connecting ears, an ear seat frame provided above the flip frame and having a second connecting ear and fixedly connected to the flip frame, an adjustment seat rotatably arranged between the flip frame and the ear seat frame, and a snow pusher provided on the adjustment seat, the ear seat frame has a circular boss at the bottom and the adjustment seat is provided with a circular hole for the circular boss to pass through, the flip frame is fixed to the circular boss by a fastener, the ear seat frame is provided with a second connecting ear, a hydraulic cylinder is hinged between the second connecting ear and the vehicle body for driving the ear seat frame to flip up and down, two vertical plates are provided on both sides of the adjustment seat, and two fixed plates are provided on the back of the snow pusher The bottom of the two fixing plates is rotatably connected to the two vertical plates, and a plurality of adjustment holes are provided above the vertical plates, one of which is provided with an adjusting bolt for the fixing plate to abut against, and the fixing plate is provided with a plurality of semicircular notches that fit the outer surface of the adjusting bolt, so that after adjusting the angle of the snow pusher, the installation position of the adjusting bolt and the corresponding relationship between the adjusting bolt and the notch are switched, and a tension spring is provided between the vertical plate and the fixed plate to pull the upper side of the fixing plate backward; the snow pusher is an arc structure and a lower pressure plate and a reinforcing plate are respectively fixed on the front and rear sides of its bottom, the lower pressure plate extends to the bottom of the snow pusher, the reinforcing plate is angular and has caster wheels with conical bottom surfaces installed on both sides through the mounting plate.

[0023] Compared with the existing technology, the advantages of the present invention are as follows: the present application adds a liquid spraying device to the sweeping vehicle to spray water when sweeping the road to reduce dust and avoid environmental pollution, or sprays liquid snow melting agent after pushing snow to assist in melting the snow layer that is difficult to be removed, thereby ensuring the cleanliness of the road surface; wherein, during spraying, the pressure of the sprayed liquid is adjusted by adjusting the pressure of the booster pump, and when the pressure is adjusted, the first valve head will compress the spring and jointly adjust the effective cross-sectional area of the liquid outlet channel with the second valve head. At the same time, the valve stem will push the adjustment block to rotate, thereby driving the sealing plate to rotate to adjust the size and direction of the liquid outlet to adapt to the change of adaptive pressure, ensuring that the spraying area is effectively sprayed. In addition, by matching two sets of cleaning devices with the same power system to clean ordinary roads and snow-covered roads respectively, the practicality of the whole machine is improved. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] The present invention will be described in further detail below with reference to the accompanying drawings and preferred embodiments. However, those skilled in the art will appreciate that these drawings are drawn only for the purpose of explaining the preferred embodiments and should not be construed as limiting the scope of the present invention. Furthermore, unless otherwise specified, the drawings are merely schematic representations of the composition or structure of the depicted objects and may contain exaggerated representations. Furthermore, the drawings are not necessarily drawn to scale.

[0025] Figure 1 A side view of the present application;

[0026] Figure 2 A perspective view of this application;

[0027] Figure 3 A perspective view of this application;

[0028] Figure 4 A bottom view of the present application;

[0029] Figure 5 A side view of the present application;

[0030] Figure 6 A perspective view of this application;

[0031] Figure 7 A perspective view of this application;

[0032] Figure 8 A perspective view of this application;

[0033] Figure 9 It is a three-dimensional diagram of the transmission part of the power system;

[0034] Figure 10 A perspective view of the snow shoveling assembly in this application;

[0035] Figure 11 A perspective view of the cleaning assembly of the present application;

[0036] Figure 12 An exploded view of the roller brush assembly of the present application;

[0037] Figure 13 A cross-sectional view of the hard sprinkler head of this application;

[0038] In the figure: 10, vehicle body; 101, cab; 102, dump box; 20, power system; 201, engine; 202, clutch; 203, main output shaft; 204, transmission long shaft; 205, long shaft; 206, two-claw transmission shaft; 30. Hydraulic system; 40. Travel assembly; 50. Spraying system; 501. Hard nozzle; 502. First valve head; 503. Second valve head; 504. Valve stem; 505. Elastic spring; 506. End cap; 5061. Liquid outlet; 507. Blocking plate; 508. Adjustment block; 509. Electric control valve; 510. Support ring; 601. Snow shoveling assembly; 6011. First connecting ear; 60111. Turning frame; 6012. Ear mount; 6013. Snow pusher; 60131. Lower pressure plate; 60132. Reinforcement plate; 60133. Foot support wheel; 60134. Fixing plate; 6014. Tension spring; 6015. Adjustment bolt; 6016. Vertical plate; 602, cleaning assembly; 6020, bearing seat; 6021, coupling; 60211, mounting seat body; 6022, connecting cylinder; 6023, frame; 6024, cover body; 6025, roller brush assembly; 60251, roller output shaft; 60252, support rod / tube; 60253, shaft housing; 60254, annular seat; 60255, brush; 60256, spacer; 60257, limit block. DETAILED DESCRIPTION

[0039] Preferred embodiments of the present invention will be described in detail below with reference to the accompanying drawings. Those skilled in the art will appreciate that these descriptions are only illustrative and exemplary and should not be construed as limiting the scope of protection of the present invention.

[0040] It should be noted that like reference numerals denote like items in the following drawings, and thus, once an item is defined in one drawing, it may not be further defined or explained in subsequent drawings.

[0041] This embodiment mainly describes the title of a multifunctional working vehicle for road clearing, which is as follows:

[0042] Multi-purpose work vehicles for road clearing, such as Figure 1-13 As shown, including:

[0043] The vehicle body 10 has a cab 101 at the front and a dump bucket 102 at the rear.

[0044] The power system 20 is used to provide power to the traveling assembly 40 and the cleaning assembly 60;

[0045] a hydraulic system 30 for providing power to the dump bucket 102 and the cleaning assembly 60;

[0046] A traveling assembly 40 for traveling on a road;

[0047] The spraying system 50 includes a liquid storage tank disposed on the top of the cab 101, a booster pump disposed on the top of the cab 101, a pipeline, and two sets of nozzle assemblies disposed on both sides of the cab 101 for spraying forward. The liquid storage tank, the booster pump, and the nozzle assembly are connected by pipelines. The nozzle assembly includes a hard nozzle 501, an electric control valve 509 disposed at the liquid inlet end of the hard nozzle 501, a hemispherical end cap 506 with a liquid outlet 5061 disposed at the liquid outlet end of the hard nozzle 501, and a movable core slidably disposed inside the hard nozzle 501. The movable core includes a valve stem 504. The first valve head 502 and the second valve head 503 are arranged on the valve stem 504. The outer diameters of the first valve head 502 and the second valve head 503 gradually increase from the liquid inlet end to the liquid outlet end. The hard nozzle 501 is provided with a first annular platform and a second annular platform. The left end of the first annular platform is provided with a truncated cone-shaped hole that matches the shape of the first valve head 502. The valve stem 504 is provided with an elastic spring 505. One end of the elastic spring 505 abuts against one end of the second annular platform, and the other end of the elastic spring 505 abuts against the end of the first valve head 502 to exert force on the first valve head 502. The elastic force of sliding toward the liquid inlet end is added, the other end of the second annular platform is provided with a truncated cone-shaped hole matching the shape of the second valve head 503, one end of the valve stem 504 is provided with a support ring 510 with a through hole to support it, the end of the adjusting block 508 is provided with a quarter-spherical sealing plate 507, the lower end of the sealing plate 507 has a guide slope, the spherical sealing plate 507 is located on the upper half of the inner wall of the end cover 506, the adjusting block 508 is provided with a notch and the end of the valve stem 504 extends into the notch and is limited in the notch, wherein the second valve head 503 and the truncated cone-shaped hole wall on the second boss are always in contact with each other. When the pressure of the booster pump increases, the valve stem 504 moves toward the liquid outlet end, the liquid outlet channel at the first valve head 502 becomes larger, and the liquid outlet channel at the second valve head 503 follows, pushing the blocking plate 507 to rotate downward to partially block the liquid outlet 5061 to adjust the size of the liquid outlet 5061 and change the direction of liquid spraying through the guide slope, so that the angle and intensity of the spraying are finally adjusted. The liquid used for spraying is generally liquid snow melting agent and clean water. The snow melting agent is used to melt the hard snow layer at the bottom of the chicken blood layer after snow pushing, and the clean water is used to reduce ground dust during cleaning;

[0048] The cleaning component 60 includes a sweeping component 602 or a snow shoveling component 601. The sweeping component 602 provides the power for sweeping through the power system 20 and provides the power for up and down flipping and left and right angle adjustment through the hydraulic system 30. The snow shoveling component 601 provides the power for up and down flipping and left and right angle adjustment through the hydraulic system 30.

[0049] Preferably, a sealing plate is provided at the liquid outlet end of the hard nozzle 501, with an eccentric hole on the sealing plate, and an end cover 506 is arranged at the eccentric hole. Both ends of the adjusting block 508 are rotatably connected to the side wall of the hard nozzle 501, and a torsion spring is provided between the adjusting block 508 and the hard nozzle 501 for resetting the adjusting block 508.

[0050] Preferably, the power system 20 includes an engine 201, a clutch 202 and a gearbox which are sequentially connected in transmission. The gearbox leads to a main output shaft 203 which outputs power at both ends. One end of the main output shaft 203 is connected to a long shaft 205 through a coupling. The output end of the long shaft 205 is connected to a two-claw transmission shaft 206 through two couplings. The other end of the main output shaft 203 is provided with a first bevel gear.

[0051] Preferably, the travel assembly 40 includes a front axle gearbox and a rear axle gearbox for two front travel wheels and two rear travel wheels, wherein the front axle gearbox and the rear axle gearbox are respectively provided with a front differential and a rear differential, wherein the rear differential has a rear power input shaft and three rear power input shafts, wherein the rear power input shaft extends out of the rear axle gearbox and is connected to the first bevel gear, wherein the two rear power output shafts are respectively the rear wheel axles for driving the two rear travel wheels to rotate, the front differential has a front power input shaft and two front power output shafts, and another rear power output shaft is connected to the front power input shaft via two couplings and a transmission long shaft 204, wherein the two front power output shafts are respectively the front wheel axles for driving the two front travel wheels to travel. Among them, the cab is provided with a steering system and a braking system for controlling the steering of the two front travel wheels, and the steering system and the braking system are the same as the steering system of a car.

[0052] Preferably, the hydraulic system 30 includes a hydraulic power assembly and three hydraulic cylinders connected to the hydraulic power assembly through pipelines, one of the hydraulic cylinders is arranged between the vehicle body 10 and the dump bucket 102 to drive the dump bucket 102 to flip, and the other two hydraulic cylinders are arranged at the front end of the vehicle body 10 and are used to drive the cleaning assembly 60 to flip up and down and rotate left and right.

[0053] Preferably, the cleaning assembly 602 includes a bearing seat 6020 provided on the front side of the vehicle body 10, a frame 6023 connected to the bearing seat 6020, a roller brush assembly 6025 provided on the frame 6023, and a cover 6024 below the roller brush assembly 6025. The middle of the bearing seat 6020 has a through space and a groove-shaped mounting seat body 60211 is hinged on both sides thereof. The frame 6023 is connected to the mounting seat body 60211 and a hydraulic cylinder is provided between the frame 6023 and the vehicle body 10 for driving the frame 6023 and the mounting seat. The body 60211 is flipped up and down, the coupling 6021 is set in the through hole and connected to the two-claw transmission shaft 206, the frame 6023 has a hollow connecting cylinder 6022, and the connecting cylinder 6022 is fixedly connected to the mounting seat body 60211, and the connecting cylinder 6022 is provided with a roller input shaft connected to the two-claw transmission shaft 206 for transmission and driving the roller brush assembly 6025 to rotate, and the frame 6023 is provided with a shaft housing 60253 that covers the roller input shaft inside, and the shaft housing 60253 is provided with a bearing to support the roller input shaft.

[0054] Preferably, the roller brush assembly 6025 includes a left roller and a right roller whose outer ends are rotatably connected to the left and right sides of the frame 6023 respectively. The inner sides of the left roller and the right roller are provided with the same roller output shaft which is fixedly connected or transmission connected to the two and extends into the shaft housing 60253. The roller input shaft and the roller output shaft are connected through a group of bevel gears located in the shaft housing 60253 and meshing with each other. A number of cleaning brushes 60255 are provided on the left roller and the right roller.

[0055] Preferably, the frame 6023 includes a first frame body having a connecting cylinder 6022 and a second frame body having a shaft housing 60253, and the first frame body and the second frame body are horizontally rotatably connected; the roller input shaft includes a first shaft segment and a second shaft segment and a universal joint structure is provided between the two, and the universal joint structure is located at the connection point where the first frame body and the second frame body are horizontally rotatably connected, and a hydraulic cylinder for driving the second frame body to rotate horizontally is provided between the first frame body and the second frame body; the second frame body is provided with an outer square tube with a top seal, and a fixed square tube is slidingly provided inside the outer square tube, and a universal wheel for support is provided at the bottom of the fixed square tube, and a nut sleeve is provided at the top of the fixed square tube, and a screw rod is threadedly connected to the fixed nut sleeve, and the screw rod passes through the outer square rod and is connected to a handle for rotating the screw rod. When the handle is rotated, the fixed square tube is vertically extended and contracted to adjust the height of the universal wheel.

[0056] Preferably, the left roller and the right roller are symmetrical structures. The left roller includes an annular spacer 60256 and an annular seat 60254 that are alternately and stacked. The circular array of brushes 60255 is evenly distributed on the annular seat 60254. The inner diameters of the spacer 60256 and the annular seat 60254 are the same, and at least three support rods / tubes 60251 are evenly distributed in a circular array and abut against the inner walls of the two. Each support rod / tube 60251 is connected by a connecting rod to form an integrated support frame. Several groups of limit blocks 60257 are provided on the inner wall of the annular seat 60254. The number of groups of limit blocks 60257 is the same as the number of support rods / tubes 60251 and are evenly distributed in an array on the inner wall of the circular seat 60254. Fixed sealing plates are provided at both ends of the support rods / tubes 60251, wherein the inner fixed sealing plate is fixedly connected or transmission-connected to the roller output shaft, and the outer fixed sealing plate is fixedly connected or transmission-connected to the roller brush balancing shaft, and the roller brush balancing shaft rotates in conjunction with the frame 6023.

[0057] Preferably, the snow shoveling assembly 601 includes two groups of first connecting ears 6011 arranged on the vehicle body 10, a flip frame 60111 rotatably connected to the two groups of first connecting ears 6011, an ear seat frame 6012 arranged above the flip frame 60111 and having a second connecting ear and fixedly connected to the flip frame 60111, an adjustment seat rotatably arranged between the flip frame 60111 and the ear seat frame 6012, and a snow pusher 6013 arranged on the adjustment seat, the ear seat frame 6012 has a circular boss at the bottom and a circular hole for the circular boss to pass through on the adjustment seat, the flip frame 60111 is fixed to the circular boss by a fastener, the ear seat frame 6012 is provided with a second connecting ear, a hydraulic cylinder is hinged between the second connecting ear and the vehicle body 10 for driving the ear seat frame 6012 to flip up and down, two vertical plates 6016 are provided on both sides of the adjustment seat, and two fixed plates 60134 are provided on the back of the snow pusher 6013. The bottom is rotatably connected to the two vertical plates 6016. There are several adjustment holes on the upper side of the vertical plates 6016. An adjustment bolt 6015 is provided in one of the adjustment holes for the fixing plate 60134 to abut against. The fixing plate 60134 is provided with several semicircular notches that fit with the outer surface of the adjustment bolt 6015. After adjusting the angle of the snow pusher 6013, the installation position of the adjustment bolt 6015 and the corresponding relationship between the adjustment bolt 6015 and the notch can be switched. The snow pusher 6013 is adapted to fit the snow pusher 6013. A tension spring 6014 is provided between the vertical plate 6016 and the fixed plate 60134 to pull the upper side of the fixed plate 60134 backward. The snow pusher 6013 is an arc-shaped structure, and a lower pressure plate 60131 and a reinforcement plate 60132 are fixed to the front and rear sides of its bottom respectively via fasteners. The lower pressure plate 60131 extends below the bottom of the snow pusher 6013. The reinforcement plate 60132 is angular, and its two sides are mounted with support wheels 60133 with tapered bottoms via mounting plates. A snow drain hole is provided on the top of the snow pusher 6013 to drain some of the snow backward when too much snow accumulates on the snow pusher 6013.

[0058] The above is a detailed introduction to the titles provided by the present invention. Specific examples are used in this article to illustrate the principles and implementation methods of the present invention. The description of the above embodiments is only used to help understand the present invention and its core ideas. It should be pointed out that for ordinary technicians in this technical field, without departing from the principles of the present invention, the present invention can also be improved and modified. These improvements and modifications also fall within the scope of protection of the claims of the present invention.

Claims

1. A multifunctional working vehicle for road clearing, characterized in that: include: The vehicle body has a cab at the front and a dump bucket at the rear; A power system for providing power to the traveling component and the cleaning component; A hydraulic system for powering the dump bucket and cleaning assembly; A traveling component, which is used for traveling on a road; The spraying system includes a liquid storage tank arranged on the top of the cab, a booster pump arranged on the top of the cab, a pipeline and two sets of nozzle assemblies arranged on both sides of the cab for spraying forward. The liquid storage tank, the booster pump and the nozzle assembly are connected by a pipeline. The nozzle assembly includes a hard nozzle, an electric control valve arranged at the liquid inlet end of the hard nozzle, a hemispherical end cover with a liquid outlet arranged at the liquid outlet end of the hard nozzle and a movable core slidably arranged inside the hard nozzle. The movable core includes a valve stem and a first frustum-shaped valve head and a second frustum-shaped valve head arranged on the valve stem. The outer diameters of the first valve head and the second valve head gradually increase from the liquid inlet end to the liquid outlet end. A first annular platform and a second annular platform are provided inside the hard nozzle. A frustum-shaped hole matching the shape of the first valve head is provided at the left end of the first annular platform. An elastic spring is provided on the valve stem. One end of the elastic spring abuts against one end of the second annular platform. The other end abuts against the end of the first valve head to apply an elastic force to the first valve head to slide toward the liquid inlet end, the other end of the second annular platform is provided with a truncated cone-shaped hole matching the shape of the second valve head, one end of the valve stem is provided with a supporting ring with a through hole to support it, the end of the adjusting block is provided with a quarter-spherical sealing plate, the lower end of the sealing plate has a guide slope, the spherical sealing plate is located at the upper half of the inner wall of the end cover, the adjusting block is provided with a notch and the end of the valve stem extends into the notch and is limited in the notch, wherein the second valve head and the truncated cone-shaped hole wall on the second boss are always not in contact. When the pressure of the booster pump increases, the valve stem moves toward the liquid outlet end, the liquid outlet channel at the first valve head becomes larger, and the liquid outlet channel at the second valve head follows, pushing the sealing plate to rotate downward to partially block the liquid outlet to adjust the size of the liquid outlet and change the direction of liquid spraying through the guide slope, so that the angle and strength of the spraying are finally adjusted; The cleaning component includes a sweeping component or a snow shoveling component. The sweeping component provides cleaning power through a power system and provides power for up and down flipping and left and right angle adjustment through a hydraulic system. The snow shoveling component provides power for up and down flipping and left and right angle adjustment through a hydraulic system.

2. The multifunctional working vehicle for road clearing according to claim 1, characterized in that: The liquid outlet end of the hard nozzle is provided with a sealing plate with an eccentric hole. The end cover is arranged at the eccentric hole. The two ends of the adjusting block are rotatably connected to the side wall of the hard nozzle and a torsion spring for resetting the adjusting block is provided between the adjusting block and the hard nozzle.

3. The multifunctional working vehicle for road clearing according to claim 1, characterized in that: The power system includes an engine, clutch, and gearbox connected in sequence. The gearbox leads to a main output shaft with dual-end power output. One end of the main output shaft is connected to a long shaft via a coupling. The output end of the long shaft is connected to a two-claw transmission shaft via two couplings. The other end of the main output shaft is equipped with a first bevel gear.

4. The multifunctional working vehicle for road clearing according to claim 3, characterized in that: The traveling assembly includes a front axle gearbox and a rear axle gearbox for two front traveling wheels and two rear traveling wheels. The front axle gearbox and the rear axle gearbox are respectively provided with a front differential and a rear differential. The rear differential has a rear power input shaft and three rear power input shafts. The rear power input shaft extends out of the rear axle gearbox and is connected to the first bevel gear. The two rear power output shafts are respectively the rear wheel axles for driving the two rear traveling wheels to rotate. The front differential has a front power input shaft and two front power output shafts. The other rear power output shaft is connected to the front power input shaft through two couplings and a transmission long shaft. The two front power output shafts are respectively the front wheel axles for driving the two front traveling wheels to travel.

5. The multifunctional working vehicle for road clearing according to claim 1, characterized in that: The hydraulic system includes a hydraulic power assembly and three hydraulic cylinders connected to the hydraulic power assembly through pipelines. One hydraulic cylinder is arranged between the vehicle body and the dump bucket to drive the dump bucket to flip, and the other two hydraulic cylinders are arranged at the front end of the vehicle body and are used to drive the cleaning component to flip up and down and rotate left and right respectively.

6. The multifunctional working vehicle for road clearing according to claim 3, characterized in that: The cleaning assembly includes a bearing seat arranged on the front side of the vehicle body, a frame connected to the bearing seat, a roller brush assembly arranged on the frame and a cover body under the roller brush assembly. The middle part of the bearing seat has a through space and a groove-shaped mounting seat body is hinged on both sides. The frame is connected to the mounting seat body and a hydraulic cylinder is provided between the frame and the vehicle body for driving the frame and the mounting seat body to flip up and down. The coupling is provided in the through hole and connected to the two-claw transmission shaft. The frame has a hollow connecting cylinder and the connecting cylinder is fixedly connected to the mounting seat body. A roller input shaft connected to the two-claw transmission shaft for transmission and driving the roller brush assembly to rotate is provided in the connecting cylinder, and a shaft shell covering the roller input shaft is provided on the frame. Bearings are provided in the shaft shell to support the roller input shaft.

7. The multifunctional working vehicle for road clearing according to claim 6, characterized in that: The roller brush assembly includes a left roller and a right roller whose outer ends are rotatably connected to the left and right sides of the frame respectively. The inner sides of the left roller and the right roller are provided with the same roller output shaft which is fixedly connected or transmission connected to the two and extends into the shaft housing. The roller input shaft and the roller output shaft are connected through a set of bevel gears located in the shaft housing and meshing with each other. A number of cleaning brushes are provided on both the left roller and the right roller.

8. The multifunctional working vehicle for road clearing according to claim 6, characterized in that: The frame includes a first frame body with a connecting cylinder and a second frame body with a shaft housing, and the first frame body and the second frame body are horizontally rotatably connected; the roller input shaft includes a first shaft section and a second shaft section and a universal joint structure is provided between the two, and the universal joint structure is located at the connection point where the first frame body and the second frame body are horizontally rotatably connected, and a hydraulic cylinder for driving the second frame body to rotate horizontally is provided between the first frame body and the second frame body; the second frame body is provided with an outer square tube with a top seal, and a fixed square tube is slidingly provided inside the outer square tube, and a universal wheel for support is provided at the bottom of the fixed square tube, and a nut sleeve is provided at the top of the fixed square tube, and a screw rod is threadedly connected to the fixed nut sleeve, and the screw rod passes through the outer square rod and is connected to a handle for rotating the screw rod. When the handle is rotated, the fixed square tube is vertically extended and contracted to adjust the height of the universal wheel.

9. The multifunctional working vehicle for road clearing according to claim 7, characterized in that: The left roller and the right roller are symmetrical structures. The left roller includes an annular spacer and an annular seat that are alternately and stacked. The circular array of brushes is evenly distributed on the annular seat. The inner diameters of the spacer and the annular seat are the same and both are provided with at least 3 support rods / tubes with circular arrays evenly distributed and resting against the inner walls of both. The support rods / tubes are connected by connecting rods to form an integrated support frame. Several groups of limit blocks are provided on the inner wall of the annular seat. The number of groups of limit blocks is the same as the number of support rods / tubes and the array is evenly distributed on the inner wall of the annular seat. Fixed sealing plates are provided at both end ends of the support rods / tubes, wherein the inner fixed sealing plate is fixedly connected or transmission connected to the roller output shaft, and the outer fixed sealing plate is fixedly connected or transmission connected to the roller brush balancing shaft, and the roller brush balancing shaft rotates with the frame.

10. The multifunctional working vehicle for road clearing according to claim 1, characterized in that: The snow shovel assembly includes two groups of first connecting ears arranged on the vehicle body, a turning frame rotatably connected to the two groups of first connecting ears, an ear seat frame provided above the turning frame and having a second connecting ear and fixedly connected to the turning frame, an adjustment seat rotatably arranged between the turning frame and the ear seat frame, and a snow pusher provided on the adjustment seat, the bottom of the ear seat frame has a circular boss and the adjusting seat is provided with a circular hole for the circular boss to pass through, the turning frame is fixed to the circular boss by a fastener, the ear seat frame is provided with a second connecting ear, a hydraulic cylinder is hinged between the second connecting ear and the vehicle body for driving the ear seat frame to flip up and down, two vertical plates are provided on both sides of the adjusting seat, and two fixed plates are provided on the back of the snow pusher. The bottom of the fixing plate is rotatably connected to the two vertical plates, and a number of adjustment holes are provided above the vertical plates, one of which is provided with an adjusting bolt for the fixing plate to rest against, and the fixing plate is provided with a number of semicircular notches that fit the outer surface of the adjusting bolt so that after adjusting the angle of the snow pusher, the installation position of the adjusting bolt and the correspondence between the adjusting bolt and the notch can be switched to adapt, and a tension spring is provided between the vertical plate and the fixing plate to pull the upper side of the fixing plate backward; the snow pusher is an arc-shaped structure and a lower pressure plate and a reinforcement plate are fixed on the front and rear sides of its bottom respectively, the lower pressure plate extends to the bottom of the snow pusher, the reinforcement plate is angular and caster wheels with conical bottom surfaces are installed on both sides through the mounting plate.

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