A spray painting vehicle

Abstract

The application provides a spraying vehicle, and relates to the technical field of highway maintenance mechanical equipment. The spraying vehicle comprises a vehicle body, a driving system, at least one storage tank, a feeding and spraying device, a cleaning system and a control system. The driving system is arranged on the vehicle body and is used for driving the vehicle body to move linearly or turn. The storage tank is arranged on the vehicle body. The feeding and spraying device is connected to the vehicle body and is in communication with the storage tank, and is used for spraying raw materials provided by the storage tank to at least one side of the vehicle body along a preset track. The cleaning system is arranged on the vehicle body and is in communication with the feeding and spraying device, and is used for cleaning the storage tank and / or the feeding and spraying device. The control system is used for controlling the driving system, the feeding and spraying device and the cleaning system to start or stop. The driving system is used for driving the vehicle body to move linearly or turn, so that the safety of highway or expressway operation is improved. The cleaning system is used for cleaning the feeding and spraying device, so that the feeding and spraying device can be cleaned in time after the spraying work is completed, and the problem that the spraying raw materials are prone to condensation due to the delay in cleaning is avoided.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of highway maintenance machinery and equipment, and particularly relates to a spraying vehicle. BACKGROUND

[0002] At present, a large number of concrete barrier posts and concrete barrier posts are used in expressways and municipal roads to separate roads and provide safety protection. In order to ensure traffic safety, service life and aesthetics, the surface of the concrete barrier post is usually coated with various weather-resistant reflective paint, warning paint and coating materials. However, these coatings cannot resist the invasion of long-term sunlight, temperature difference, wind and sand, rain and snow, vibration and other environments, and will weather and crack after a few years, seriously affecting the aesthetics and service life, and thus need to be cleaned and recoated regularly.

[0003] At present, the coating cleaning and spraying of the barrier post are mostly manually operated, and usually in the form of a combination of a cleaning trolley and a spraying trolley. A worker pushes the cleaning trolley in front to clean the old coating on the surface of the barrier post, and another worker pushes the spraying trolley behind to spray the surface of the barrier post. The spraying trolley is provided with a raw material tank and a spray head, and is manually pushed to the spraying site for spraying through the spray head. During the spraying process, due to the limited loading space, the raw materials and water need to be frequently supplemented, and the spraying device needs to be manually pushed to move, which poses a safety hazard for expressway operation. In addition, after the spraying is completed, there is residual material left in the spraying system, and the spraying material used for spraying the barrier post is usually viscous. The residual material will affect the smoothness of the next spraying, and the existing spraying device or spraying trolley usually needs to be manually pushed to a safe position for cleaning the spraying system using external water source and a spray gun assembly. The residual spraying material is prone to condensation due to its viscosity, which makes it difficult to clean. Moreover, the cleaning process is complex and time-consuming, which wastes time and labor.

[0004] Therefore, a spraying vehicle is needed to at least solve the problems of the existing spraying device, i.e., the need for manual pushing for work, the existence of safety hazards, and the inability to clean in time and the complexity of the cleaning process. SUMMARY

[0005] The main purpose of the present application is to provide a spraying vehicle to at least solve the problems of the existing spraying device, i.e., the need for manual pushing for work, the existence of safety hazards, and the inability to clean in time and the complexity of the cleaning process.

[0006] To achieve the above purpose, the present application provides the following technical solutions:

[0007] The application provides a spraying vehicle, comprising: a vehicle body, wherein a driving system is arranged on the vehicle body, the driving system drives the vehicle body to travel straight or turn; at least one storage tank, wherein the at least one storage tank is arranged on the vehicle body; a feeding and spraying device, wherein the feeding and spraying device is connected to the vehicle body and communicates with the storage tank, and is used for spraying raw materials provided by the storage tank to at least one side of the vehicle body along a preset track; a cleaning system, wherein the cleaning system is arranged on the vehicle body and communicates with the feeding and spraying device, and is used for cleaning the storage tank and / or the feeding and spraying device; and a control system, wherein the control system controls the start and stop of the driving system, the feeding and spraying device and the cleaning system respectively.

[0008] In some embodiments, the feeding and spraying device comprises a feeding device and a spraying device, wherein the feeding device and the spraying device are arranged on the vehicle body respectively; the feeding device comprises at least one bidirectional piston feeding assembly, wherein the bidirectional piston feeding assembly comprises a pair of oppositely arranged feeding ports and a discharging port which communicates with the pair of feeding ports respectively, and the pair of feeding ports respectively communicate with the outlet of the storage tank; and the discharging port communicates with the spraying device.

[0009] In some embodiments, the spraying device comprises a spraying support, at least one pair of spraying gun assemblies, a cam connecting rod assembly and a spraying driving device; the spraying support is connected to one side of the vehicle body; the cam connecting rod assembly is connected to the spraying support; at least one pair of the spraying gun assemblies are respectively rotationally connected to the spraying support and connected to the cam connecting rod assembly; and the spraying driving device is drivingly connected to the cam connecting rod assembly, and drives the cam connecting rod assembly to operate, so as to drive at least one pair of the spraying gun assemblies to swing up and down.

[0010] In some embodiments, the vehicle body comprises a vehicle body chassis; the driving system comprises a steering axle assembly and a driving axle assembly, wherein the steering axle assembly and the driving axle assembly are respectively connected to two ends of the vehicle body chassis, and are respectively used for driving the vehicle body chassis to turn and travel.

[0011] In some embodiments, the steering axle assembly comprises: a steering wheel set, wherein the steering wheel set is connected to one end of the vehicle body chassis; a planetary gear assembly, wherein the planetary gear assembly is connected to the middle part of the steering wheel set; a driving shaft, wherein the driving shaft is rotationally connected to the vehicle body chassis; a steering driving device, wherein the steering driving device is arranged on the vehicle body chassis and drivingly connected to the driving shaft, and is used for driving the driving shaft to rotate; and a clutch, wherein the clutch is respectively connected to the steering shaft of the planetary gear assembly and the driving shaft; wherein the clutch is attracted to make the driving shaft and the steering shaft of the planetary gear assembly rotate synchronously, and drive the steering wheel set to rotate, and the clutch is separated to make the driving shaft and the steering shaft rotate independently.

[0012] The driving axle assembly comprises a driving wheel set connected to the other end of the vehicle body frame; and a driving wheel driving device drivingly connected to the driving wheel set for driving the driving wheel set to move forward or backward.

[0013] In some embodiments, a rotation limiting rod is further included, one end of the rotation limiting rod being rotationally connected to the vehicle body frame, and the other end of the rotation limiting rod being slidingly connected to the steering wheel set in the driving direction of the vehicle body for limiting the rotation angle of the steering axle assembly to be no more than a first preset angle.

[0014] The wheel track of the steering axle assembly is smaller than the wheel track of the driving axle.

[0015] In some embodiments, a safety system is further included, the safety system comprising a side edge traveling system, a radar system, and at least one pair of anti-collision wheel assemblies; each of the anti-collision wheel assemblies comprises an anti-collision wheel, an anti-collision connecting arm, and an anti-collision wheel driving device, the anti-collision wheel of each of the anti-collision wheel assemblies being rotationally connected to the vehicle body through the anti-collision connecting arm and being located on the same side as the feed spraying device; the anti-collision wheel driving device is drivingly connected to the anti-collision connecting arm for driving the anti-collision connecting arm to rotate so that the anti-collision wheel assembly protrudes from the feed spraying device by a first preset distance.

[0016] The side edge traveling system comprises a distance measuring sensor, the distance measuring sensor being connected to the vehicle body and being located on the same side as the discharge direction of the feed spraying device, the distance measuring sensor monitoring the distance between the side of the vehicle body and a lateral obstacle, and the control system controlling the vehicle body to turn to travel at a second preset distance from the lateral obstacle according to the detection signal of the distance measuring sensor; the radar system is arranged at the front and rear ends of the vehicle body for detecting the distance between the vehicle body and front and rear obstacles, and the control system receives the detection signal of the radar system and controls the vehicle body to turn according to the radar detection signal.

[0017] In some embodiments, a gas circuit system and an electric circuit system are further included; the gas circuit system comprises a compressor, a pressure maintaining tank, and a control valve connected in sequence, the control valve being in communication with the feed spraying device for providing power; the electric circuit system comprises a generator and an electric storage device, the generator being electrically connected to the electric storage device, and the electric storage device being electrically connected to the control system.

[0018] In some embodiments, the cleaning system comprises at least one water storage tank for containing cleaning water, a water pump, a cleaning gun and a recovery tank, a first water outlet of the water storage tank is communicated with an inlet of the storage tank through the water pump, a second water outlet of the water storage tank is communicated with the cleaning gun; the recovery tank is communicated with an outlet of the storage tank; the storage tank and the water storage tank are respectively provided with stirring devices.

[0019] In some embodiments, the top of the vehicle body is provided with a rain-shielding and flow-guiding cover, and the side of the vehicle body is provided with an observation ladder and / or an operation ladder.

[0020] Compared with the prior art, the spraying vehicle provided by the application has at least the following beneficial effects: the driving system on the vehicle body is used to realize driving and steering, compared with a manual cart, manual operation can be avoided, and the safety of highway or expressway operation is improved; the feeding and spraying device is cleaned by the cleaning system, so that the spraying material can be cleaned in time after the spraying work is completed, and the problem of easy condensation of the spraying material due to untimely cleaning is avoided.

[0021] The above description is only a summary of the technical solutions of the application. In order to more clearly understand the technical means of the application, and to implement the content of the description, the following will describe the preferred embodiments of the application in detail with reference to the accompanying drawings. BRIEF DESCRIPTION OF DRAWINGS

[0022] The above and other objects, features and advantages of the exemplary embodiments of the present application will be more clearly understood from the following detailed description taken in conjunction with the accompanying drawings, in which several embodiments of the application are shown by way of example, and wherein the same or corresponding elements are referred to by the same or corresponding reference numerals. In the drawings:

[0023] Figure 1 FIG. 1 shows a structure schematic diagram of a first perspective view of a spraying vehicle according to an exemplary embodiment of the present application;

[0024] Figure 2 FIG. 2 shows a structure schematic diagram of a second perspective view of a spraying vehicle according to an exemplary embodiment of the present application;

[0025] Figure 3 FIG. 3 shows a structure schematic diagram of a vehicle body of a spraying vehicle according to an exemplary embodiment of the present application;

[0026] Figure 4 FIG. 4 shows a structure schematic diagram of a steering bridge assembly in a spraying vehicle according to an exemplary embodiment of the present application;

[0027] Figure 5 FIG. 5 shows an exploded schematic diagram of a steering bridge assembly in a spraying vehicle according to an exemplary embodiment of the present application;

[0028] Figure 6Fig. 2 shows a schematic view of the assembly of the steering axle assembly and the vehicle body frame of the spraying vehicle according to an example embodiment of the present application;

[0029] Figure 7 Fig. 3 shows a schematic view of the bottom perspective of the vehicle body of the spraying vehicle according to an example embodiment of the present application;

[0030] Figure 8 Fig. 4 shows a schematic view of the anti-collision wheel assembly of the spraying vehicle according to an example embodiment of the present application;

[0031] Figure 9 Fig. 5 shows a schematic view of the feeding device of the spraying vehicle according to an example embodiment of the present application;

[0032] Figure 10 Fig. 6 shows a sectional view of the feeding device of the spraying vehicle according to an example embodiment of the present application;

[0033] Figure 11 Fig. 7 shows a schematic view of the spraying device from a first perspective of the spraying vehicle according to an example embodiment of the present application;

[0034] Figure 12 Fig. 8 shows a schematic view of the spraying device from a second perspective of the spraying vehicle according to an example embodiment of the present application;

[0035] Figure 13 Fig. 9 shows a schematic view of the spraying trajectory of the spraying vehicle according to an example embodiment of the present application.

[0036] BRIEF DESCRIPTION OF THE DRAWINGS

[0037] 1. vehicle body; 101. vehicle body frame; 102. steering axle assembly; 103. drive axle assembly; 104. steering wheel set; 105. planetary gear assembly; 106. drive shaft; 107. steering drive device; 108. clutch; 109. steering shaft; 110. mounting bracket; 111. traction interface; 112. spring damping plate; 113. planetary assembly mounting plate; 114. gear ring support disc; 115. planetary gear; 116. drive gear; 117. mounting panel; 118. rotation limiting rod; 119. drive wheel set; 120. drive wheel drive device; 121. anti-collision wheel assembly; 122. anti-collision wheel; 123. anti-collision connecting arm; 124. anti-collision wheel drive device; 125. air compressor; 126. observation ladder; 127. operation ladder; 128. rain-shielding and flow-guiding cover; 129. electric control cabinet; 130. drive mounting plate;

[0038] 2. storage tank; 201. stirring device;

[0039] 3, feed spraying device; 301, feed device; 302, main pipeline; 303, bidirectional piston feed assembly; 304, feed inlet; 305, discharge outlet; 306, bidirectional air cylinder; 307, piston chamber; 308, first valve; 309, second valve; 310, spraying device; 311, spraying support; 312, spray gun assembly; 313, cam connecting rod assembly; 314, spraying driving device; 315, spray gun support; 316, spray gun; 317, connecting shaft; 318, adjusting groove; 319, limiting bolt; 320, pulley; 321, cam; 322, connecting rod; 323, driven wheel; 324, driving wheel;

[0040] 4, cleaning system; 401, water storage tank. DETAILED DESCRIPTION

[0041] Exemplary embodiments of the present application will be described herein below with reference to the accompanying drawings. While exemplary embodiments of the present application are shown in the drawings, it is to be understood that the present application can be embodied in various forms without being limited to the embodiments set forth herein. Rather, these embodiments are provided so that this disclosure will be thorough and complete, and will fully convey the scope of the application to those skilled in the art.

[0042] It should be noted that unless otherwise specified, technical terms or scientific terms used in the present application should be understood as commonly understood by one of ordinary skill in the art to which the present application pertains.

[0043] In the description of the present application, it should be understood that the terms "center", "longitudinal", "transverse", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "axial", "radial", "circumferential" and the like indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings, and are only for the convenience of describing the present application and simplifying the description, and therefore cannot be understood as indicating or implying that the device or element referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore cannot be understood as limiting the present application.

[0044] Currently, the spray painting of the barrier posts for highways or expressways usually adopts the form of a spraying trolley. The traditional spraying trolley mainly comprises a movable trolley body, a raw material tank on the trolley body for storing raw materials, and a spraying device, such as a spray gun assembly, a spray head or a spray head capable of moving up and down on the trolley body, which is in communication with the raw material tank. The spraying trolley is usually towed to the work site to be sprayed by a towing vehicle, and then moved to the work site to be sprayed by manual pushing. During spraying, the spraying trolley is manually pushed by the operator to walk, the raw materials in the raw material tank are delivered to the spraying device by a delivery pump, and then sprayed out by the spray head of the spraying device to spray paint on the surface of the barrier post or other road facilities. The spraying trolley has the following defects: during the spraying process, due to the limited loading space, the raw materials and water need to be frequently supplemented, and the spraying device needs to be manually pushed to move, which poses a safety hazard for expressway work. In addition, after the spraying is completed, there is residual material in the spraying system, and the spraying material for spraying the barrier post is usually viscous, which will affect the smoothness of the next spraying. The existing spraying device or spraying trolley usually moves to a safe position by manual pushing, and then uses external water source and spray gun assembly to clean the spraying system. The residual spraying material is easy to condense due to its viscosity, which makes it difficult to clean. The cleaning process is complex and tedious, and the process is slow, which wastes time and manpower. Patent CN208167453U provides a high-efficiency spraying device for road maintenance agent. During work, the device is moved to the desired position, the foot wheels are uniformly moved by the motor, the inclination angle of the spray head is adjusted by the electric telescopic rod, the stirring paddle and pressure sensor are arranged in the spraying line, and after the spraying is completed, clean water is poured into the spraying box for cleaning, and the inner wall of the spraying box is scraped by the scraper. When the spraying device is used for spraying the barrier posts for highways or expressways, the following defects exist: the spraying device moves by the motor-driven foot wheels, and during the movement, it can only move straight and cannot turn. When the direction of the barrier post changes or faces a curve, the walking direction still needs to be manually adjusted, which poses a safety hazard for expressway work. After the spraying is completed, the cleaning is performed by manually pouring clean water, which still needs external water source for cleaning. The spraying material is easy to condense due to its viscosity, which causes cleaning difficulty and easy clogging of the spray head.

[0045] To solve the problems in the prior art, such as Figures 1 to 13As shown, the present application provides a spraying vehicle, comprising: a vehicle body 1, the vehicle body 1 is provided with a driving system, the driving system drives the vehicle body 1 to travel linearly or turn; at least one storage tank 2, the at least one storage tank 2 is arranged on the vehicle body 1; a feeding and spraying device 3, the feeding and spraying device 3 is connected to the vehicle body 1 and communicates with the storage tank 2, and is used for spraying raw materials provided by the storage tank 2 to at least one side of the vehicle body 1 along a preset track; a cleaning system 4, the cleaning system 4 is arranged on the vehicle body 1 and communicates with the feeding and spraying device 3, and is used for cleaning the storage tank 2 and / or the feeding and spraying device 3; a control system, the control system controls the driving system, the spraying device 310 and the cleaning system 4 to start and stop respectively.

[0046] The spraying vehicle provided by the present application drives the vehicle body 1 to travel through the driving system of the vehicle body 1, which can avoid manual operation and improve the safety of highway or expressway operation compared with a manual cart; the feeding and spraying device 3 is cleaned through the cleaning system 4, so that the spraying work can be cleaned in time after completion, avoiding the problem that the spraying raw materials are prone to condensation due to untimely cleaning.

[0047] In some embodiments, as shown, Figure 3 The vehicle body 1 comprises a vehicle body chassis 101; the driving system comprises a steering axle assembly 102 and a drive axle assembly 103, the steering axle assembly 102 and the drive axle assembly 103 are connected to two ends of the vehicle body chassis 101 respectively, and are used for driving the vehicle body chassis 101 to turn and travel respectively. The vehicle body chassis 101 is provided with a mud blocking structure corresponding to the steering axle assembly 102.

[0048] The vehicle body 1 is of a frame structure and can be welded by square tubes, I-beams or channel steels, the steering axle assembly 102 is located at the front end of the vehicle body 1, the drive axle assembly 103 is located at the rear end of the vehicle body 1, and the front end and the rear end of the vehicle body 1 are located in front of and behind the driving direction respectively. The steering axle assembly 102 and the drive axle assembly 103 are arranged at the bottom of the vehicle body chassis 101 and support the entire vehicle body chassis 101.

[0049] In some embodiments, as shown, Figure 4 and Figure 5As shown, the steering axle assembly 102 comprises: a steering wheel set 104 connected to one end of the vehicle body frame 101; a planetary gear assembly 105 connected to the middle of the steering wheel set 104; a drive shaft 106 rotatably connected to the vehicle body frame 101; a steering drive device 107 provided on the vehicle body frame 101 and drivingly connected to the drive shaft 106 for driving the drive shaft 106 to rotate; and a clutch 108 connected to the steering shaft 109 of the planetary gear assembly 105 and the drive shaft 106 respectively; wherein the clutch 108 is attracted to make the drive shaft 106 and the steering shaft 109 of the planetary gear assembly 105 rotate synchronously, driving the steering wheel set 104 to rotate, and the clutch 108 is separated to make the drive shaft 106 and the steering shaft 109 rotate independently of each other.

[0050] In order to avoid the safety hazards caused by manual pushing operation on the highway or highway, the vehicle body 1 is driven by the drive axle assembly 103 to travel in a straight line, and the steering is realized by the steering axle assembly 102. At the same time, the steering axle assembly 102 can be attracted to the steering shaft 109 and the drive shaft 106 by the clutch 108, and automatic steering is realized by the driving of the steering drive device 107, or the steering shaft 109 and the drive shaft 106 are separated to enable the steering axle assembly 102 to realize the auxiliary traction mode, and the steering in the traction mode is realized by being driven by the towed vehicle, thereby avoiding damage to the planetary gear assembly 105 or the steering drive device 107.

[0051] In some embodiments, the steering wheel set 104 comprises steering wheels located on both sides of the vehicle body 1 and an axle connected between the steering wheels on both sides, and each side of the steering wheel is at least one.

[0052] The planetary gear assembly 105 is connected to the axle through a mounting bracket 110, and both ends of the axle are connected to the bottom of the mounting bracket 110 through spring damping plates 112 respectively; the front end of the mounting bracket 110 is provided with a traction interface 111 for connecting with the towing vehicle. The top of the mounting bracket 110 is provided with a planetary assembly mounting plate 113 for mounting the planetary gear assembly 105.

[0053] The planetary gear assembly 105 comprises a ring-shaped gear ring support disc 114 connected to the planetary assembly mounting plate 113 of the mounting frame 110 through a ring-shaped bolt assembly, a steering shaft 109 penetrating the planetary assembly mounting plate 113 and rotationally connected to a bearing connected thereto, and located at the center of the gear ring support disc 114, a driving gear 116 sleeved on the steering shaft 109, and three planetary gears 115 circumferentially and evenly meshed between the gear ring support disc 114 and the driving gear 116 and supported in the gear ring support disc 114 through a gear mounting disc and a mounting column assembly. The gear mounting disc is a circular plate structure, and the mounting column assembly can be a mounting shaft and bearing assembly. The planetary gears 115 are rotationally connected to the mounting shaft through the bearing.

[0054] The rotation of the steering shaft 109 drives the driving gear 116 to rotate, and the torque is transmitted to the gear ring support disc 114 through the planetary gears 115. The gear ring support disc 114 is fixedly connected to the mounting frame 110, so that the mounting frame 110 is subjected to the torque and transmits the torque to the wheel shaft, thereby rotating the steering wheel set 104 with the steering shaft 109 as the center.

[0055] As shown in Figures 3 to 6 The front end of the vehicle body chassis 101 is connected to a driving mounting plate 130. The steering drive device 107 comprises a motor and a reducer connected to the driving mounting plate 130 through a bracket. The output shaft of the motor is drivingly connected to the input end of the reducer, and the output end of the reducer is drivingly connected to the driving shaft 106. The bottom of the driving shaft 106 is provided with a cylindrical guide sleeve, and the steering shaft 109 penetrates the driving mounting plate 130 and is rotationally connected in the guide sleeve. The clutch 108 is located above the driving mounting plate 130.

[0056] The reducer reduces the torque provided by the motor, making the rotation of the driving shaft 106 more reliable. The cooperation of the clutch 108 and the steering drive device 107 enables the steering axle assembly 102 to be in an automatic steering driving state and an auxiliary traction state, so as to cooperate with the driving state of the spraying vehicle according to the demand, so as to be able to automatically drive and automatically steer.

[0057] The clutch 108 can be a cog clutch. When the clutch 108 is engaged, the two half clutches of the clutch 108 are engaged, so that the driving shaft 106 and the steering shaft 109 can be driven synchronously. When the driving shaft 106 is rotated by the torque transmitted by the motor, the steering shaft 109 is also rotated synchronously. At this time, the steering shaft 109 transmits the torque to the ring gear support disc 114 through the planetary gear 115, and then to the mounting frame 110, so as to drive the steering wheel set 104 to rotate, thereby achieving the purpose of automatic steering. The speed reduction is realized through the speed reducer and the planetary gear assembly 105, so as to ensure the stability. When the clutch 108 is disconnected, the two half clutches of the clutch 108 are separated, and the driving shaft 106 and the steering shaft 109 are independently rotated. At this time, the mounting frame 110 can be connected to the towing vehicle for towing, so as to avoid damaging the planetary gear assembly 105 and the driving and steering driving device 107.

[0058] As shown in Figure 6 , the front end of the vehicle body frame 101 is provided with a mounting panel 117, and the driving mounting plate 130 covers the mounting panel 117. The ring gear support disc 114 includes an inner ring and an outer ring. The outer ring of the ring gear support disc 114 is located below the mounting panel 117. The driving mounting plate 130, the front end panel of the vehicle body frame 101, and the outer ring of the ring gear support disc 114 are connected in sequence by a ring-shaped bolt assembly. The center of the mounting panel 117 is provided with a circular through hole. The inner ring of the ring gear support disc 114 is exposed in the circular through hole and is connected to the planetary assembly mounting plate 113 by a ring-shaped bolt assembly. The driving mounting plate 130 covers the circular through hole, so that the driving mounting plate 130, the ring gear support disc 114, and the planetary assembly mounting plate 113 form a closed space, thereby preventing the planetary gear assembly 105 from entering dust or mud.

[0059] In some embodiments, as shown in Figure 7 , the spraying vehicle further comprises a rotation limiting rod 118. One end of the rotation limiting rod 118 is rotationally connected to the vehicle body frame 101, and the other end of the rotation limiting rod 118 is slidingly connected to the steering wheel set 104 in the driving direction of the vehicle body 1, so as to limit the rotation angle of the steering axle assembly 102 to be less than a first preset angle. The first preset angle is less than 40°.

[0060] One end of the rotation limiting rod 118 is provided with a sliding groove, and the bottom of the mounting frame 110 of the steering axle assembly 102 is provided with a limiting pin shaft extending downward, which is slidingly connected in the sliding groove. The other end of the rotation limiting rod 118 is rotationally connected to the middle part of the vehicle body frame 101.

[0061] When the steering axle assembly 102 drives the vehicle body frame 101 to rotate, the limiting pin shaft rotates and slides in the sliding groove. The length of the sliding groove can limit the rotation angle, so as to avoid excessive rotation angle of the vehicle.

[0062] In some embodiments, as shown in Figure 7 The driving wheel set 119 is connected to the other end of the vehicle body frame 101, and the driving wheel driving device 120 is drivingly connected to the driving wheel set 119 for driving the driving wheel set 119 to move forward or backward.

[0063] The driving wheel set 119 includes driving wheels on both sides of the vehicle body 1 and a driving axle connected between the driving wheels on both sides, and the driving wheel driving device 120 drives the driving axle to move forward or backward, thereby driving the driving wheel set 119 to rotate synchronously.

[0064] The driving wheel on each side is at least one corresponding to the steering wheel, and the wheelbase of the steering axle assembly 102 is smaller than the wheelbase of the driving axle, that is, the distance between the driving wheels on both sides of the vehicle body 1 is greater than the distance between the steering wheels on both sides of the vehicle body 1. The driving wheel driving device 120 can be a pneumatic motor or an electric motor. The driving axle is a product in the prior art, and its specific structure is not described here.

[0065] In some embodiments, as shown in Figure 1 and Figure 8 The spraying vehicle further includes a safety system, which includes a edge traveling system, a radar system, and at least one pair of anti-collision wheel assemblies 121. Each anti-collision wheel assembly 121 includes an anti-collision wheel 122, an anti-collision connecting arm 123, and an anti-collision wheel driving device 124. The anti-collision wheel 122 of each anti-collision wheel assembly 121 is rotatably connected to the vehicle body 1 through the anti-collision connecting arm 123 and is located on the same side as the material spraying device 3. The anti-collision wheel driving device 124 is drivingly connected to the anti-collision connecting arm 123 for driving the anti-collision connecting arm 123 to rotate so that the anti-collision wheel assembly 121 protrudes from the material spraying device 3 by a first predetermined distance.

[0066] Since the barrier is usually arranged in the middle of the road, the material spraying device 3 is arranged on the left side of the vehicle body 1, so that it can travel in the same direction as other vehicles according to the road travel rules and spray the raw material to the left barrier along the travel direction.

[0067] The spraying vehicle provided in the present application can be used to spray other road facilities, such as roadside guardrails, and therefore the material spraying device 3 can also be arranged on the right side of the vehicle body 1, which can be determined according to the actual situation.

[0068] In some embodiments, as shown in Figure 1 and Figure 8As shown, the pair of anti-collision wheel assemblies 121 are located on the same side of the material supply spraying device 3, and are arranged at the front end and the rear end of the vehicle body 1 respectively, and are inclined to extend forward and rearward respectively along the horizontal direction. The anti-collision wheel assembly 121 located at the rear end can protrude from the vehicle body 1. The anti-collision wheel assembly 121 can ensure the safety of the spraying vehicle during driving, so that the spraying vehicle can maintain a predetermined distance from the lateral obstacle, and the material supply spraying device 3 can be prevented from being collided when turning.

[0069] As shown in the drawings, Figure 8 The anti-collision wheel 122 is arranged in the vertical direction along the axial direction. The anti-collision wheel driving device 124 includes a rotary cylinder fixed to the vehicle body chassis 101, and the anti-collision connecting arm 123 is hinged to the vehicle body chassis 101. The driving end of the rotary cylinder is connected to the anti-collision connecting arm 123 through a rocker arm. The rotary cylinder drives the rocker arm to swing in the horizontal direction, so as to drive the anti-collision connecting arm 123 to swing, thereby moving the position of the anti-collision wheel 122.

[0070] The rotary cylinder is a prior art, and its specific structure will not be described here. The rotary cylinder is provided with a sensor. When the anti-collision wheel 122 is subjected to an external force, the detection signal of the sensor is transmitted to the control system, and the control system controls the motor of the steering driving device 107 to operate, so as to drive the steering axle assembly 102 to automatically steer, so as to correct the position and avoid collision.

[0071] In some embodiments, the edge driving system includes a distance measuring sensor connected to the vehicle body 1 and located on the same side as the discharge direction of the material supply spraying device 3. The distance measuring sensor monitors the distance between the side of the vehicle body 1 and the lateral obstacle. The control system controls the vehicle body 1 to steer to maintain a second predetermined distance from the lateral obstacle according to the detection signal of the distance measuring sensor. The radar system is arranged at the front and rear ends of the vehicle body 1, and is used to detect the distance between the vehicle body 1 and the front and rear obstacles. The control system receives the detection signal of the radar system and controls the vehicle body 1 to steer according to the radar detection signal.

[0072] The distance measuring sensor is an ultrasonic sensor. The distance measuring sensor is arranged on the same side of the vehicle body 1 as the material supply spraying device 3, and can be a pair of sensors arranged at the front end and the rear end of the vehicle body 1 respectively. The distance measuring sensor is used to monitor the distance between the vehicle body 1 and the roadside in real time. When the spraying vehicle automatically drives along the road and sprays the barrier, the distance between the spraying vehicle and the barrier needs to be maintained within a predetermined distance range. When the distance signal monitored by the distance measuring sensor is lower than a predetermined low value or exceeds a predetermined high value, the control system controls the motor of the steering driving device 107 to operate, so as to drive the steering axle assembly 102 to automatically steer, so as to correct the position and realize left and right rudder adjustment according to the feedback information of the distance measuring sensor, thereby realizing automatic driving along the edge of the road at a predetermined speed and maintaining the distance from the lateral obstacle during automatic driving. The radar system is used to monitor the distance between the vehicle body 1 and the front and rear obstacles, and feedback the monitoring signal to the control system.

[0073] The spraying vehicle also comprises a brake system, the brake system comprising brake lines connected with the steering axle assembly 102 and the driving axle assembly 103 respectively, the brake lines being driven and controlled by a cylinder connected with the vehicle chassis 101, when the radar system detects that an obstacle is present in front of or behind the vehicle and the distance between the vehicle and the obstacle is less than a preset value, the control system controls the cylinder to retract the brake lines, so as to brake the vehicle and stop the vehicle. The ranging sensor, the radar system and the brake system are of conventional structure and working principle, and will not be described in detail.

[0074] In some embodiments, the spraying vehicle also comprises a gas circuit system and an electric circuit system.

[0075] The gas circuit system comprises a compressor 125, a pressure maintaining tank and a control valve connected in sequence, the control valve being connected with the material supply and spraying device 3 for providing power; the electric circuit system comprises a generator and an electric storage device, the generator being electrically connected with the electric storage device, and the electric storage device being electrically connected with the control system.

[0076] As shown in FIGS. 1, 2 and 3, the compressor 125 is connected with the vehicle chassis 101 and arranged opposite to the material storage tank 2 at the front and rear ends of the vehicle body 1. Figure 1 , Figure 2 The compressor 125 can be arranged at the front end of the vehicle chassis 101, and can be a diesel compressor 125. The generator is connected downstream of the compressor 125 and generates electricity driven by the compressor 125. The electric storage device comprises a storage battery, which is electrically connected with various electric devices for providing power. The storage battery can be connected with an external power source for charging, so as to drive various devices to start and maintain the normal operation of the control system, the safety system, the material supply and spraying device 3, etc.

[0077] The compressor 125 provides compressed air, which is stored in the pressure maintaining tank. The pressure maintaining tank is connected with the material supply and spraying device 3, various cylinders, air motors and various gas-consuming devices through gas circuit pipelines, and can ensure that the working pressure of the gas source is greater than 0.7 Mpa and the exhaust volume is not less than 1.3 m 3 / min, so as to ensure the power of various devices.

[0078] The storage battery can be a 24V storage battery. The electric energy of the storage battery can be provided by the generator driven by the compressor 125, and can be obtained by charging through an external power source, so as to ensure the normal operation of the devices.

[0079] The control system can be integrated into the electrical control cabinet 129, which is located adjacent to the air compressor 125 on the vehicle chassis 101. The side of the electrical control cabinet 129 has an operation panel that can display information, input control commands, and perform other system operations. The air compressor 125, generator, battery, and electrical control cabinet 129 are all existing products, and their specific working principles will not be described in detail.

[0080] In some embodiments, the top of the vehicle body 1 is provided with a rain cover 128, and the side of the vehicle body 1 is provided with an observation ladder 126 and / or an operating ladder 127.

[0081] like Figure 2 As shown, the observation ladder 126 and the operating ladder 127 are respectively connected to the side of the vehicle body frame 101. The top of the observation ladder 126 is located at the storage tank 2 and is used to observe the capacity and stirring status of the storage tank 2. The operating ladder 127 is located at the electrical control cabinet 129 and is used to control the operating panel. The vehicle body 1 is provided with a protective side plate surrounding the top of the vehicle body frame 101. A rain cover 128 is connected to the top of the protective side plate and covers the air compressor 125 or the air compressor 125 and the electrical control cabinet 129. The rain cover 128 is provided with an openable window.

[0082] In some embodiments, the material supply and spraying device 3 includes a material supply device 301 and a spraying device 310, which are respectively disposed on the vehicle body 1.

[0083] The feeding device 301 includes at least one bidirectional piston feeding assembly 303. The bidirectional piston feeding assembly 303 includes a pair of feed ports 304 arranged opposite to each other and a discharge port 305 that is connected to the pair of feed ports 304 respectively. The pair of feed ports 304 are connected to the outlet of the storage tank 2 respectively. The discharge port 305 is connected to the spraying device 310.

[0084] In some embodiments, such as Figure 9 , Figure 10 As shown, the feeding device 301 includes a main pipeline 302, which is U-shaped and includes a closed section and a pair of open sections. Each open section has an inlet 304 at its end, and an outlet 305 is located in the middle of the closed section. The pair of inlets 304 are connected to the outlet of the storage tank 2 via a tee connector.

[0085] The bidirectional piston feeding assembly 303 includes a bidirectional cylinder 306 and a pair of piston chambers 307. The pair of piston chambers 307 are respectively connected to both ends of the bidirectional cylinder 306. The bidirectional cylinder 306 includes a pair of bidirectional pistons. Each piston is slidably and sealed within a piston chamber 307. The bidirectional cylinder 306 is provided with pneumatic power by an air compressor 125 to drive the pair of pistons to move in the same direction.

[0086] The pair of piston chambers 307 are respectively a first piston chamber and a second piston chamber. When the bidirectional cylinder 306 drives the pair of pistons to move in a first direction, the piston in the second piston chamber moves towards an end away from the bidirectional cylinder 306, and the piston in the first piston chamber moves towards an end of the bidirectional cylinder 306, so that a negative pressure is formed in the first piston chamber, and thus the raw material in the raw material storage tank 2 can be drawn into the first piston chamber.

[0087] When the bidirectional cylinder 306 drives the pair of pistons to move in a second direction opposite to the first direction, the piston in the first piston chamber moves towards an end of the bidirectional cylinder 306, and the piston in the second piston chamber moves towards an end away from the bidirectional cylinder 306, so that a negative pressure is formed in the second piston chamber, and thus the raw material in the raw material storage tank 2 can be drawn into the second piston chamber, and the raw material in the first piston chamber will be pushed by the piston to be transmitted to the spraying device 310 through the discharge port 305.

[0088] Through the cooperation of the pair of piston chambers 307 and the bidirectional cylinder 306, the feeding port 304 can form a reciprocating feeding process through the bidirectional piston feeding assembly 303, one side discharges, and the other side feeds, so that the raw material can be continuously provided to the spraying device 310, and through the continuous control and operation of the work, the continuous feeding and stable operation of the feeding device 301 are realized.

[0089] Through the continuous and stable operation of the bidirectional piston feeding assembly 303, the purpose of continuously feeding the mixture raw material with high viscosity such as mortar coating can be achieved.

[0090] In some embodiments, as shown in Figure 9 , Figure 10 The bidirectional piston feeding assembly 303 is a pair, and the pair of bidirectional piston feeding assemblies 303 are connected in parallel between the pair of open pipe sections of the main pipeline 302. The discharge directions of the pair of bidirectional piston feeding assemblies 303 can be the same, and through the pair of bidirectional piston feeding assemblies 303, the discharge amount and discharge pressure can be improved. The connection between each bidirectional piston feeding assembly 303 and the open pipe section is respectively provided with a first valve 308, and through the first valve 308, the on-off of the bidirectional piston feeding assembly 303 can be controlled. The pair of bidirectional piston feeding assemblies 303 can work separately from each other, so as to serve as a backup for each other, and avoid the abnormal situation of the whole feeding device 301 caused by the possible damage or abnormal situation of one of them.

[0091] In some embodiments, the discharge port 305 is a plurality of discharge ports, which are respectively arranged on the closed pipe section of the main pipeline 302, and each discharge port 305 is provided with a second valve 309. During use, one of the discharge ports 305 can be opened, and the other two discharge ports 305 can be used as a backup to avoid the blockage of the valve by the raw material with high viscosity.

[0092] The first valve 308 and the second valve 309 can be pinch valves, and the control system controls the opening and closing of the pinch valves, which can be controlled by input instructions of the operation panel or automatically continued by preset programs. The control system controls the pinch valves at both ends corresponding to the pair of feed ports 304 to be in different opening and closing states, so as to realize the continuous reciprocating feeding process of one end feeding and the other end discharging. When one end of the bidirectional piston feeding assembly 303 feeds, the pinch valve upstream of the end is connected, and the pinch valve downstream of the end is disconnected, so that the raw material extracted from the end can enter the piston chamber 307. The other end of the bidirectional piston feeding assembly 303 is in a discharging state at this time, and the pinch valve upstream of the end is disconnected, and the pinch valve downstream of the end is opened, so that the raw material can be discharged from the discharge port 305.

[0093] In some embodiments, the spraying device 310 comprises a spraying support 311, at least one pair of spraying gun assemblies 312, a cam connecting rod assembly 313, and a spraying driving device 314; the spraying support 311 is connected to one side of the vehicle body 1; the cam connecting rod assembly 313 is connected to the spraying support 311; the at least one pair of spraying gun assemblies 312 are respectively rotationally connected to the spraying support 311 and connected to the cam connecting rod assembly 313; and the spraying driving device 314 is drivingly connected to the cam connecting rod assembly 313, and the spraying driving device 314 drives the cam connecting rod assembly 313 to operate, so as to drive the at least one pair of spraying gun assemblies 312 to swing up and down.

[0094] In some embodiments, as shown in Figure 11 , Figure 12 The middle part of the spraying support 311 is connected to the vehicle body chassis 101 by bolts and is located at the side edge of the vehicle body chassis 101, the spraying driving device 314 is connected to one end of the spraying support 311, i.e. the first end, towards the vehicle body chassis 101, and the spraying gun assembly 312 is connected to the other end of the spraying support 311, i.e. the second end, towards the outside of the vehicle through the cam connecting rod assembly 313.

[0095] In some embodiments, the spraying gun assembly 312 is a pair of first and second spraying gun assemblies, the first spraying gun assembly is slidingly connected to the top of the second end of the spraying support 311, and the second spraying gun assembly is connected to the bottom of the second end of the spraying support 311.

[0096] As shown in Figure 11 , Figure 12 ​As shown, the first and second spray gun assemblies each include a spray gun bracket 315 and a pair of spray guns 316, the spray gun bracket 315 is U-shaped, the spray gun bracket 315 is arranged on both sides of the spraying bracket 311, the pair of spray guns 316 is connected to the middle of the spray gun bracket 315, and the two ends of the spray gun bracket 315 are connected with a connecting shaft 317, the connecting shaft 317 passes through the spraying bracket 311 and is rotatably connected with the spraying bracket 311 through a bearing. The spray gun brackets 315 of the first and second spray gun assemblies 312 are oppositely arranged.

[0097] As shown in Figure 11 , Figure 12 As shown, the top of the spraying bracket 311 is provided with an adjusting groove 318 inclined to the horizontal direction, and the connecting shaft 317 of the first spray gun assembly 312 is slidingly connected in the adjusting groove 318. The spraying device 310 further comprises a limiting plate and a limiting bolt 319, the limiting plate is arranged at the end of the second end of the spraying bracket 311, and the limiting bolt 319 passes through the limiting plate and is connected with the middle of the connecting shaft 317 of the first spray gun assembly 312, so as to limit the position of the first spray gun assembly 312 in the adjusting groove 318, thereby adjusting the height of the first spray gun assembly 312, and adjusting the coverage range of the spraying operation to adapt to the spraying of isolation piers of different heights.

[0098] The opposite surfaces of the two ends of each spray gun bracket 315 are rotatably connected with a plurality of pulleys 320 arranged in an upper and lower manner, and a swing channel is formed between the upper pulley 320 and the lower pulley 320 at one end of each spray gun bracket 315, and the swing channel is arranged along the width direction of the vehicle body 1. The lower pulley 320 is sleeved on the connecting shaft 317.

[0099] In some embodiments, the pulleys 320 at the two ends of each spray gun bracket 315 are three, the three pulleys 320 are arranged in a triangular shape, two pulleys 320 are above and one pulley 320 is below, and a swing channel is formed between the upper pulley 320 and the lower pulley 320.

[0100] The cam link assembly 313 includes two pairs of cam link structures, each pair of cam link structures is oppositely arranged on both sides of the spraying bracket 311 and is rotatably connected with the spraying bracket 311 through a cam connecting shaft.

[0101] The cam link structure includes a cam 321 and a connecting rod 322, the cam 321 is fixedly connected to the end of the cam connecting shaft, a plurality of connecting holes are arranged on the cam 321 close to the outer edge and in a ring or arc shape, one end of the connecting rod 322 is rotatably connected in one connecting hole, and the other end of the connecting rod 322 passes through one swing channel.

[0102] The spraying driving device 314 comprises a spraying motor, which is a rotary motor and is connected to the first end of the spraying support 311. The middle part of the cam connecting shaft of the two pairs of cam connecting rod structures is respectively provided with a driven wheel 323, and the output end of the spraying motor is connected with at least one driving wheel 324, and the at least one driving wheel 324 is synchronously connected with the pair of driven wheels 323 through a linkage, which can be a synchronous belt or a chain (not shown in the figure).

[0103] When the spraying motor drives the driving wheel 324 to rotate, the driven wheel 323 is driven to rotate synchronously, the cam connecting shaft is driven to rotate, thereby driving the cams 321 located on both sides of the spraying support 311 to rotate. Since the connecting rod 322 is rotationally connected to the cam 321, the rotation of the cam 321 can drive one end of the connecting rod 322 to rotate synchronously in the rotation direction of the cam 321, so that the one end of the connecting rod 322 forms a periodic change in height. The middle part of the connecting rod 322 is slidingly connected in the swing channel, and the pulley 320 located below and the connecting shaft 317 are rotationally connected with the spraying support 311, and the spraying support 311 is fixed on the vehicle body frame 101. The pulley 320 located below and the connecting shaft 317 form a fulcrum for the connecting rod 322, so that the connecting rod 322 performs a periodic circular motion around the fulcrum at the connecting end of the cam 321, and the axial angle of the connecting rod 322 changes periodically. Since the connecting rod 322 is connected in the swing channel, it can drive the spraying gun support 315 to move synchronously with the change in the axial angle of the connecting rod 322, so that the spraying gun 316 moves accordingly to form a periodic swing, thereby enabling the spraying to be performed from top to bottom or from bottom to top, and making the spraying more uniform.

[0104] The first spraying gun assembly 312 and the second spraying gun assembly 312 have a height difference, and the spraying operation is performed synchronously with the driving, so that, as shown in the figure, the first spraying gun assembly 312 and the second spraying gun assembly 312 can form continuous M-shaped spraying trajectories respectively, and the spraying trajectories of the first spraying gun assembly 312 and the second spraying gun assembly 312 partially overlap, thereby making the spraying more uniform and avoiding the situation of missing spraying or dripping. Figure 13

[0105] In this application, through the cooperation of the cam connecting rod assembly 313 and the spraying driving device 314, a pair of spraying gun assemblies 312 are respectively periodically swung in the up-down direction, so that they can be continuously and periodically swung up and down during the movement of the spraying vehicle, thereby improving the uniformity of the spraying, avoiding the situation that manual leveling is required due to uneven spraying, and avoiding the safety hazards of manual road operation.

[0106] ​The spray gun 316 can be selected from existing products, such as a 1700 type spray gun 316, which has a ceramic nozzle and can spray the raw materials after increasing and atomizing by the pneumatic force provided by the gas path system. The specific structure and principle will not be described again.

[0107] The spray gun 316 is communicated with the discharge port 305. Two of the plurality of discharge ports 305 can be respectively communicated with the spray guns 316 of the two spray gun assemblies 312, and the remaining ones are used as backup to avoid the failure of other discharge ports 305 to work.

[0108] In some embodiments, the cleaning system 4 includes at least one water storage tank 401, a water pump, a cleaning gun, and a recovery tank. The water storage tank 401 is used to contain cleaning water. A first water outlet of the water storage tank 401 is communicated with the inlet of the storage tank 2 through the water pump. A second water outlet of the water storage tank 401 is communicated with the cleaning gun. The recovery tank is communicated with the outlet of the storage tank 2. Stirring devices 201 are respectively arranged in the storage tank 2 and the water storage tank 401.

[0109] In some embodiments, the stirring device 201 is arranged at the top of the storage tank 2 and the water storage tank 401, and includes a stirring driving device, a stirring shaft, and a stirring blade. The stirring driving device is fixed to the top of the storage tank 2 and includes a speed reducer and a stirring driving member. The stirring driving member can be a pneumatic motor or a stirring motor. When the pneumatic motor is used, the pneumatic motor is communicated with the control valve of the gas path system to obtain pneumatic power. The stirring device 201 is used to stir the raw materials in the storage tank 2 to avoid condensation and facilitate spraying.

[0110] The water storage tank 401 and the storage tank 2 are both provided with the stirring device 201, so that the water storage tank 401 and the storage tank 2 can be used as backup for each other to facilitate adjustment of use according to needs. The first water outlet of the water storage tank 401 is connected to the water pump. The water in the water storage tank 401 is pumped out by the water pump to clean other required parts. The cleaning gun can be used to clean the surface of the spraying vehicle. The cleaning gun can be clamped on the water storage tank 401 or the vehicle body chassis 101 by the cleaning gun support. The water pressure of the water outlet is not less than 0.2 Mpa.

[0111] When cleaning is performed after spraying is completed, the connection between the feeding device 301 and the spraying device 310 can be disconnected. The discharge port 305 is communicated with the inlet of the recovery tank. The remaining raw materials are recovered by the feeding device 301.

[0112] When the raw materials in the storage tank 2 are emptied, the three-way joint connecting the outlet of the storage tank 2 and the pair of feeding ports 304 of the feeding device 301 can be disconnected. The outlet of the storage tank 2 is connected to the sewage pipeline. The water in the water storage tank 401 is pumped out by the water pump and delivered from top to bottom into the storage tank 2 for flushing. At the same time, the external part of the spraying vehicle is cleaned and flushed by the cleaning gun manually.

[0113] When the water flowing out of the outlet of the storage tank 2 is relatively clean, the outlet of the storage tank 2 and the pair of feeding ports 304 of the feeding device 301 are connected through a tee joint, and the discharging port 305 of the feeding device 301 is connected with the sewage pipeline, so that the clean water enters the feeding device 301 to clean;

[0114] When the water flowing out of the discharging port 305 is clean water, the discharging port 305 is connected with the spraying device 310 to clean the spraying device 310. Since there is less residual raw material in the spraying device 310, the cleaning water sprayed out of the spraying device 310 is relatively clean and has less impurities, and the environmental pollution is also relatively small. According to the actual situation, the water sprayed out of the spray gun 316 can be sprayed into the recovery tank or sprayed into the atmosphere for discharge, so as to complete the sequential cleaning process.

[0115] The spraying vehicle provided in the application sequentially cleans the storage tank 2, the feeding device 301 and the spraying device 310 through the cleaning system, so as to avoid that the sewage with a large amount of previous raw material enters the feeding device 301 and the spraying device 310. The cleaning effect is reliable and fast, and the blocking condition is reduced.

[0116] The spraying vehicle provided in the application can pre-inject an appropriate amount of water into the storage tank 2 after the work is completed to avoid condensation, and then move to a safe position for cleaning, so as to avoid that the residual raw material in the storage tank 2 condenses, and the spraying vehicle does not need to move a long distance and can be cleaned after moving to a safe position.

[0117] The working process of the spraying vehicle provided in the application is as follows:

[0118] Through the information displayed on the operation panel of the electric control cabinet 129, it is checked whether the power of the power storage device is sufficient and whether the system connection is normal. After confirming that there is no error, sufficient raw material is injected into the storage tank 2, an appropriate amount of clean water is injected into the water storage tank 401, and the air compressor 125 is filled with diesel oil to enable it to operate. The traction interface 111 of the mounting frame 110 is connected with the traction frame and the traction vehicle, the spraying vehicle is towed to the work site by the traction vehicle, and the preparation process is completed.

[0119] After the spraying vehicle arrives at the work site, the air compressor 125 is started to provide a compressed air source, and the generator continuously converts power supply, and the driving bridge assembly 103 is driven by the operation panel to drive and steer the bridge assembly 102 to assist in turning, so that the spraying vehicle drives to the area to be worked on. After setting the detection preset distance of the distance sensor and the front and rear safety distance detected by the radar system on the operation panel, the automatic spraying mode is started, the spraying vehicle automatically traces along the road and uses the pneumatic power provided by the air compressor 125 during driving; the bidirectional piston feeding assembly 303 of the feeding device 301 is driven by the pneumatic power of the air compressor to drive the bidirectional cylinder 306, so that a pair of pistons at both ends of the bidirectional cylinder 306 reciprocate in the corresponding piston chambers 307, thereby realizing a continuous material suction process of one end extracting raw materials and the other end outputting raw materials, and feeding the raw materials into the spraying device 310 through the discharge port 305; the spraying device 310 periodically swings at a certain angle under the cooperation of the cam connecting rod assembly 313 and the spraying driving device 314, and at the same time, the discharge port 305 of the feeding device 301 sends the raw materials to the nozzle of the spray gun 316, which is sprayed out of the nozzle of the spray gun 316, and the raw materials are pressurized and atomized in the process of the spray gun 316 itself, thereby realizing the automatic driving of the spraying vehicle along the road, and covering the road barrier in the driving process. The spraying process is completed.

[0120] When the spraying is completed, the raw material flow process of the spraying vehicle is sequentially cleaned.

[0121] The spraying vehicle provided by the application uses a gas source as a power source, drives the steering bridge assembly 102 through the driving bridge assembly 103 to drive, and uses pneumatic power to drive the bidirectional piston feeding assembly 303 of the feeding device 301 to extract the raw materials in the storage tank 2, and then pushes them to the feeding device 301, so that a pair of pistons in the bidirectional cylinder 306 reciprocate in a pair of piston chambers 307, thereby continuously feeding; the spray gun 316 is driven by pneumatic power to pressurize and atomize the raw materials, and the cam connecting rod assembly 313 and the spraying driving device 314 cooperate to realize the covering spraying along the way, the steering bridge assembly 102 has an automatic steering function, and in the automatic driving mode, the walking angle can be adjusted in real time according to the road conditions, and the power source is converted through the electric control cabinet 129 and the air compressor 125 to ensure the stability of the driving force, and the full-automatic spraying operation along the way is completed.

[0122] The spraying vehicle provided by the application can be used for spraying materials with high viscosity such as mortar, and is suitable for highways and municipal roads, and can be used for full-automatic surface spraying maintenance work on roadbeds and isolation piers. The vehicle body 1 structure can be loaded, various devices, transport vehicles and other complex tools are reduced, the process of frequently supplementing materials, fuel and water is avoided, and the efficiency of construction work is directly improved; a large number of manual operations are replaced by automatic equipment, the stability and efficiency of construction work are ensured, labor cost is saved, and the waste caused by weather and other factors that cause long-term stagnation of the project is avoided; the multifunctional equipment is self-powered, the lack of external resources and other factors in highway maintenance work is overcome, the construction work progress is ensured, and the engineering cost is saved; automatic driving operation is adopted, the amount of manual work is reduced, the pace of mechanization of highway maintenance is accelerated, and the possibility of major losses of life and property caused by highway accidents is greatly reduced.

[0123] It can be understood that the related features in the above device can be mutually referred. In addition, "first", "second", etc. in the above embodiments are used to distinguish each embodiment, and do not represent the advantages and disadvantages of each embodiment.

[0124] In the specification provided herein, a large number of specific details are described. However, it can be understood that the embodiments of the application can be practiced without these specific details. In some examples, well-known structures and techniques are not shown in detail in order not to obscure the understanding of the present specification.

[0125] The above is only a specific implementation of the application, but the protection scope of the application is not limited to this, any person skilled in the art can easily think of changes or replacements within the technical range disclosed by the application, which should be covered within the protection scope of the application. Therefore, the protection scope of the application should be subject to the protection scope of the claims.

Claims

1. A painting vehicle, characterized in that, include: A vehicle body, on which a driving system is provided, the driving system driving the vehicle body to travel in a straight line or to turn; At least one storage tank, and at least one of the storage tanks is disposed on the vehicle body; A material supply spraying device is connected to the vehicle body and communicates with the storage tank, and is used to spray the raw material provided by the storage tank onto at least one side of the vehicle body along a preset trajectory; A cleaning system, which is installed on the vehicle body and connected to the material supply and spraying device, is used to clean the storage tank and / or the material supply and spraying device. A control system that controls the start and stop of the driving system, the material supply and spraying device, and the cleaning system, respectively; The material supply and spraying device includes a material supply device and a spraying device, which are respectively installed on the vehicle body; The feeding device includes at least one bidirectional piston feeding assembly, which includes a pair of feed inlets arranged opposite to each other and a discharge outlet respectively connected to the pair of feed inlets. The pair of feed inlets are respectively connected to the outlet of the storage tank. The discharge outlet is connected to the spraying device. The feeding device includes a main pipeline, which is U-shaped and includes a closed pipe section and a pair of open pipe sections. The end of each open pipe section forms a feed inlet, and the discharge outlet is located in the middle of the closed pipe section. The bidirectional piston feeding assembly includes a bidirectional cylinder and a pair of piston chambers, which are respectively connected to the two ends of the bidirectional cylinder. The bidirectional cylinder drives the pair of pistons to move in the same direction, so that the feed port forms a reciprocating feeding process through the bidirectional piston feeding assembly. The bidirectional piston feeding assembly is a pair, and the pair of bidirectional piston feeding assemblies are connected in parallel between a pair of open pipe sections of the main pipeline; The spraying device includes a spraying bracket, at least one pair of spray gun assemblies, a cam linkage assembly, and a spraying drive device; the spraying bracket is connected to one side of the vehicle body; the cam linkage assembly is connected to the spraying bracket; at least one pair of spray gun assemblies are rotatably connected to the spraying bracket and connected to the cam linkage assembly; the spraying drive device is driven to operate the cam linkage assembly, thereby causing at least one pair of spray gun assemblies to swing up and down.

2. The painting vehicle according to claim 1, characterized in that, The vehicle body includes a chassis frame; the driving system includes a steering axle assembly and a drive axle assembly, which are respectively connected to both ends of the chassis frame and are used to drive the chassis frame to steer and travel.

3. The painting vehicle according to claim 2, characterized in that, The steering axle assembly includes: Steering wheel assembly, the steering wheel assembly being connected to one end of the vehicle body chassis; A planetary gear assembly connected to the middle of the steering wheel assembly; A drive shaft, which is rotatably connected to the vehicle chassis; A steering drive device is mounted on the vehicle body chassis and is driven to the drive shaft for driving the drive shaft to rotate. The clutch is connected to the steering shaft of the planetary gear assembly and the drive shaft, respectively. Wherein, the clutch engagement causes the drive shaft and the steering shaft of the planetary gear assembly to rotate synchronously, driving the steering wheel group to rotate; the clutch disengagement causes the drive shaft and the steering shaft to rotate independently. The drive axle assembly includes: A drive wheel assembly, which is connected to the other end of the vehicle chassis frame; A drive wheel drive device is driven and connected to the drive wheel assembly, used to drive the drive wheel assembly forward or backward.

4. The painting vehicle according to claim 3, characterized in that, It also includes a rotation limit rod, one end of which is rotatably connected to the vehicle body chassis, and the other end of which is slidably connected to the steering wheel assembly along the vehicle body travel direction, for limiting the rotation angle of the steering axle assembly to not exceed a first preset angle; The wheel track of the steering axle assembly is smaller than that of the drive axle.

5. The painting vehicle according to claim 1, characterized in that, It also includes a safety system, which includes a patrol driving system, a radar system, and at least one pair of anti-collision wheel assemblies; The anti-collision wheel assembly includes an anti-collision wheel, an anti-collision connecting arm, and an anti-collision wheel drive device. The anti-collision wheel of each anti-collision wheel assembly is rotatably connected to the vehicle body through the anti-collision connecting arm and is located on the same side as the material supply and spraying device. The anti-collision wheel drive device is connected to the anti-collision connecting arm and is used to drive the anti-collision connecting arm to rotate so that the anti-collision wheel assembly protrudes beyond the material supply spraying device by a first preset distance. The edge-following driving system includes a distance sensor connected to the vehicle body and located on the same side as the material discharge direction of the material supply and spraying device. The distance sensor monitors the distance between the side of the vehicle body and lateral obstacles. The control system controls the vehicle body to turn according to the detection signal of the distance sensor so as to maintain a second preset distance from the lateral obstacles. The radar system is located at the front and rear ends of the vehicle body and is used to detect the distance between the vehicle body and obstacles in front and behind. The control system receives the detection signals from the radar system and controls the steering of the vehicle body according to the radar detection signals.

6. The painting vehicle according to claim 1, characterized in that, It also includes the pneumatic system and the electrical system; The air circuit system includes an air compressor, a pressure tank, and a control valve connected in sequence. The control valve is connected to the material supply and spraying device to provide power. The circuit system includes a generator and an energy storage device, the generator being electrically connected to the energy storage device, and the energy storage device being electrically connected to the control system.

7. The painting vehicle according to claim 1, characterized in that, The cleaning system includes at least one water storage tank, a water pump, a cleaning gun, and a recovery tank. The water storage tank is used to hold cleaning water. The first outlet of the water storage tank is connected to the inlet of the storage tank through the water pump. The second outlet of the water storage tank is connected to the cleaning gun. The recovery tank is connected to the outlet of the storage tank. Both the storage tank and the water tank are equipped with stirring devices.

8. The painting vehicle according to claim 1, characterized in that, The top of the vehicle body is equipped with a rain cover, and the side of the vehicle body is equipped with an observation ladder and / or an operating ladder.

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