Spraying device, spraying system and spraying mode

Abstract

A spraying body of the spraying device is in a long strip shape, a plurality of nozzles are distributed on the side wall of the spraying body, and angle-adjustable distance measuring equipment is further installed at the end of the spraying body. The spraying system adopting the spraying device comprises a sprinkling irrigation device, a whitewashing spraying device, a liquid storage tank and a conveying pipe network, the sprinkling irrigation device and the whitewashing spraying device are connected to the liquid storage tank through the conveying pipe network, and the sprinkling irrigation device comprises one or more spraying devices with vertically-downward nozzles. The whitewashing and spraying device comprises a plurality of spraying devices which are arranged in a surrounding manner, nozzles of the spraying devices horizontally face a surrounding center point, and the height of the whitewashing and spraying device can be adjusted; according to the spraying mode, the spraying bodies are combined into spraying terminals with different functions, the working states of the spraying terminals are adjusted through distance measuring equipment, and equipment reuse of the spraying terminals is achieved by switching different liquid supplies; the problems that existing equipment is single in function, rich in variety and not easy to store are solved.

Description

Technical Field

[0001] The present invention relates to the field of special equipment for greening in urban construction, and in particular to a spraying device, a spraying system and a spraying method suitable for urban greening maintenance. Background Art

[0002] With the development of social economy, the scientific and technological level of urban greening in my country has been continuously improved. Various types of greening spraying devices are widely used in the daily maintenance and beautification of urban gardens and greening. The spraying device is a very common basic structure among various devices, such as: sprinkler devices for watering, tree whitening spraying devices, pesticide and fertilizer spraying devices, etc.

[0003] Sprinklers are mainly used to meet the irrigation needs of gardening and greening, and they are mainly used for spraying lawns and low shrubs. Traditional sprinkler devices mainly include the following categories: backpack manual sprinklers, which require greening workers to carry a water tank and manually squeeze out the spray for spraying. The nozzle angle cannot be automatically adjusted, the efficiency is low, and the human resource requirements are large; fixed greening sprinkler heads, which can achieve timed and quantitative greening sprinkler irrigation, but the sprinkler irrigation area is fixed and the pipeline layout cost is high; greening fog cannon vehicles, which can achieve greening spraying in a large area, but the water resource utilization rate is not high and the spraying operation will interfere with pedestrians around the vehicle.

[0004] Whitewash spraying devices are mainly used for whitewashing of trees. Whitewashing of trees can prevent and control pests and diseases and tree trunk frost cracking, and is a common task in landscaping maintenance. At present, the main form of whitewashing of trees in China is manual painting, but the main component of the whitewashing agent is lime water, and the molecules it volatilizes can cause harm to the eyes and skin of operators.

[0005] Pesticide and fertilizer spraying devices are mainly used to spray liquid fertilizers on green plants, or to kill some pests and diseases by spraying pesticides. Since pesticides and fertilizers often have a pungent smell and are harmful to the human body, once they are sprayed, they may further aggravate the harm to the human body. The existing spraying method needs to be further improved.

[0006] Based on the above functional requirements, many scholars have proposed alternative solutions with a higher degree of automation for the above devices. Through automation technology, spray irrigation of plants in green belts or automated whitewashing of trees or automated spraying of drugs can be achieved. Although the existing sprinkler irrigation devices and whitewashing devices have achieved a certain degree of automation, there are few comprehensive considerations for the reuse of multiple functions, and no device has been found that can comprehensively realize the above three functions and obtain the most cost-effective function with the most streamlined and optimized equipment structure. Moreover, most of the existing equipment still requires one-to-one operation by operators during use, and cannot intelligently identify the operation targets. Therefore, it is necessary to improve and compound the existing automated equipment, integrate the most common devices in these landscaping operations into a system to facilitate greening operations. Summary of the invention

[0007] The technical problem to be solved by the present invention is to provide a spraying device, a spraying system and a spraying method which have good reusability and can easily introduce intelligent identification.

[0008] To solve the above technical problems, the technical solution of the present invention is: The spraying device comprises a spraying body, which is in the shape of an elongated strip. A plurality of nozzles are distributed on the side wall of the spraying body. An angle-adjustable distance measuring device is installed at the end of the spraying body. The nozzle and the distance measuring device are arranged on the same surface of the spraying body.

[0009] Preferably, the liquid inlet of the spray body is arranged at the end of the spray body.

[0010] Preferably, the distance measuring devices are provided at both ends of the spray body and the distance measuring devices are provided on the same surface of the spray body.

[0011] The spraying system using the above-mentioned spraying device includes a sprinkler irrigation device, a whitewash spraying device, a liquid storage tank and a conveying pipeline network, wherein the conveying pipeline network connects the sprinkler irrigation device and the whitewash spraying device to the liquid storage tank respectively; the sprinkler irrigation device includes a single or multiple sprinkler devices, and the nozzles are vertically downward; the whitewash spraying device includes multiple sprinkler devices, and the multiple sprinkler devices are arranged in an embracing manner with the nozzles horizontally facing the center point of the embracing, and the height of the whitewash spraying device is adjustable.

[0012] Preferably, the liquid storage tank is partitioned and a buffer baffle is provided inside the liquid storage tank, the delivery pipeline network includes a first pipeline connected to the sprinkler device and a second pipeline connected to the whitewash spray device, and the interior of the liquid storage tank is divided into two partitions, a first chamber and a second chamber, the first chamber is connected to the first pipeline, and the second chamber is connected to the second pipeline.

[0013] Preferably, the liquid inlet end of the second pipeline is connected to the first cavity and the second cavity of the liquid storage tank at the same time, and a switching device is provided between the second pipeline and the liquid storage tank, and the switching device connects the first cavity or the second cavity to the second pipeline.

[0014] Preferably, the white coating spray device is provided with at least four of the spray devices, at least two of the spray devices are connected in series to form a support arm and connected to a group of outlets of the second pipeline, and the angle between the at least two of the spray devices constituting the support arm is adjustable.

[0015] Preferably, the sprinkler irrigation device is provided with at least two of the distance measuring devices.

[0016] Preferably, the sprinkler device and the whitewash spray device can translate in a horizontal plane.

[0017] A spraying method, which uses a single or multiple identical spray bodies to combine into a spray terminal that meets different functions, the spray body is in the shape of a long strip, and a plurality of nozzles are distributed on the side wall of the spray body. An angle-adjustable distance measuring device is installed at the end of the spray body, and the nozzle and the distance measuring device are arranged on the same side of the spray body. The distance measuring device is used to adjust the working state of the spray terminal. The spray terminal is simultaneously connected to a liquid storage tank storing a variety of liquids, and the equipment reuse of the spray terminal is achieved by switching different liquid supplies.

[0018] After adopting the above scheme, the present invention is different from the traditional method of using multiple equipment to carry out greening maintenance. It solves the problem that the existing equipment has a single function and the equipment is rich in variety and difficult to reserve. First of all, the present invention can meet various application requirements such as sprinkler irrigation, tree trunk whitening, and pesticide fertilization. The tree whitening device and lawn sprinkler and pesticide device are integrated into one system, and various greening maintenance operations can be realized on a vehicle-mounted platform, which improves the efficiency of road greening operations, saves human resource costs and vehicle costs, and makes road greening operations more energy-saving and efficient. Secondly, the reuse of equipment can increase the frequency of equipment use. For example, the spray gun for spraying pesticides and fertilizers can also be used for spraying irrigation, and the same is true for whitening equipment. Due to the reuse of equipment, clean water is frequently used to wash the inside of the spray body, which can avoid organic damage to the spray body after the whitening liquid or pesticide fertilizers dry up. Thirdly, the reuse of equipment can avoid the hoarding of a large number of equipment. Combined with its multi-stage folding design, the equipment can be better stored at ordinary times and does not take up a lot of space. Finally, the automation improvement of equipment can reduce the contact between sanitation workers and related drugs, thereby improving the efficiency of greening maintenance work while ensuring the health of sanitation workers. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1is a three-dimensional diagram of a spraying device of Embodiment 1; Figure 2 is a cross-sectional view of a spraying device of Embodiment 1; Figure 3 It is a schematic diagram of the structure of a spraying device with distance measuring equipment at both ends; Figure 4 It is a schematic diagram of the structure of two spraying devices connected in series; Figure 5 It is a schematic diagram of the structure of a white-coating spraying device formed by three spraying devices; Figure 6 is a schematic structural diagram of the white-coating spraying device in Embodiment 2; Figure 7 is a three-dimensional diagram of the greening maintenance operation vehicle in the second embodiment; Figure 8 is a top view of the greening maintenance operation vehicle in the second embodiment; Fig. 9 It is a structural schematic diagram of the spraying system in the second embodiment. DETAILED DESCRIPTION

[0020] The present invention is further described in detail below with reference to the accompanying drawings and specific embodiments.

[0021] Embodiment 1

[0022] A spraying device, such as Figure 1 and Figure 2 As shown, it includes a spray body 1. The spray body 1 is in the shape of an elongated strip. Common shapes may be a cylinder, an elliptical cylinder, a cuboid, etc. In this embodiment, it is a rectangular cuboid with a square cross section. A plurality of nozzles 2 are distributed on the side wall of the spray body 1, and liquid is sprayed from the nozzles 2. In this embodiment, the plurality of nozzles 2 are distributed on the side of the elongated rectangle. If the spray body 1 is a cylinder, the plurality of nozzles 2 may be distributed on the arc-shaped side of the cylinder without a circular bottom. An angle-adjustable distance measuring device 3 is installed at the end of the spray body 1. The nozzle 2 and the distance measuring device 3 are arranged on the same surface of the spray body 1. The distance between the two ends of the spray body 1 and the spraying object can be understood through the distance measuring device 3, thereby ensuring that the spray body 1 sprays liquid to the spraying object at a better angle and distance. The distance measuring device 3 is installed at the end of the spray body 1 by hinge or ball head connection. By adjusting the angle between the detection line of the distance measuring device 3 and the spraying direction, the device can be applied to various scenarios. In this embodiment, the distance measuring device 3 is hinged at both ends of the spray body 1 by pins 30.

[0023] Furthermore, the number of distance measuring devices 3 can be increased, so that the relative spatial posture of the spraying device and the spraying object can be more automatically identified. Figure 3As shown, a distance measuring device 3 can be provided at both ends of the spray body 1 and the distance measuring device 3 can be provided on the same surface of the spray body 1. In this way, the distance between the two ends of the spray body 1 and the spraying object can be detected by the distance measuring devices 3 at both ends of the single spray body 1 and the spatial posture of the spray body 1 can be adjusted. For example, when the two ends of the spray body 1 used are provided with distance measuring devices 3, the working posture of the spray body 1 can be adjusted by the distance measuring devices 3 at both ends, so that the spray body 1 is parallel to the lawn surface, and then the lawn is evenly sprinkled with water or sprayed with fertilizers. It is also possible to combine multiple spray bodies 1 to obtain more distance measuring devices 3, specifically, as Figure 4 As shown, the liquid inlet 31 of the spray body 1 can be arranged at the end of the spray body 1. In this way, multiple spray body 1 units can be connected in series to form a spray terminal with multiple distance measuring devices 3 and multiple spray bodies 1. Through the series connection of multiple spray bodies 1, more different application requirements can be met. In this embodiment, the liquid inlet 31 is arranged on the side close to the square bottom surface of the rectangular parallelepiped. If it is a cylinder, it can be arranged on the side close to the circular bottom surface. When used in series, a liquid outlet 33 can be provided on the other end of the spray body 1 opposite to the liquid inlet 31 to connect with the liquid inlet 31 of the next-level spray body 1. The liquid outlet 33 of this embodiment is arranged on the side close to the square bottom surface at the other end opposite to the liquid inlet 31. When multiple spray bodies 1 are connected in series, they are mutually hinged through the rigid structures at both ends of the spray bodies 1. Both ends of the spray bodies 1 are provided with connection holes 32. When they are mutually hinged, the motor used to control the angle between the spray bodies can be fixed on the shell of one of the spray bodies 1, and the output shaft passes through the connection hole 32 and is fixed inside the connection hole 32 of another spray body 1. Different spray bodies 1 are connected through hoses 34, which can not only ensure the flexibility of relative movement between the spray bodies 1, but also allow the liquid to enter the next level of spray body 1 through the liquid outlet 33. For example, when the spray device is used for whitewashing tree trunks, two spray bodies 1 provided with a single distance measuring device 3 can be connected in series to form an angle-adjustable support arm. The whitewashing spray device can be provided with two support arms. After the two support arms are surrounded in a square, they can be used for spraying the surface of the tree trunk. The position of the spray body 1 is adjusted by the distance measuring device 3, so that the tree trunk to be sprayed is located at the center point of the square formed by the two arms, thereby ensuring the spraying quality of the spray body 1. At the same time, the combination of multiple spray bodies 1 can also be used to spray water and medicine on the lawn. Specifically, the two sections of the spray body 1 constituting the support arm can be unfolded to 180°, and the respective distance measuring devices 3 on the two sections of the spray body 1 can realize the related functions of the single spray body 1 with two distance measuring devices 3. In addition, with the introduction of automation technology, the angle adjustment of the distance measuring device 3 can be adjusted by a controllable motor. The specific implementation is not the focus of this case and will not be described here.

[0024] Embodiment 2

[0025] The spraying system using the spraying device mentioned in the above embodiment can realize multiple functions such as lawn irrigation, tree trunk whitening, green belt spraying, etc. The following only takes the comprehensive application of lawn irrigation and tree trunk whitening as an example to specifically illustrate the present invention. Green belt spraying is similar to lawn irrigation and will not be described in detail here. Figure 6-Figure 9 As shown, the multifunctional urban greening spraying system includes a sprinkler 4, a whitening spraying device 5, a liquid storage tank 6 and a delivery pipe network 7, and the delivery pipe network 7 connects the sprinkler 4 and the whitening spraying device 5 to the liquid storage tank 6 respectively. The sprinkler 4 includes a single or multiple sprinkler devices mentioned above. In this embodiment, only a single sprinkler device mentioned above is included, and distance measuring equipment is provided at both ends of the device. The nozzle 2 of the spraying body 1 is vertically downward. The sprinkler 4 is used for multi-angle sprinkler irrigation of lawns and trees, and can also be used for spraying medicine on green belts. Its control is similar to lawn sprinkler irrigation. The whitening spraying device 5 includes multiple sprinkler devices mentioned above, and the multiple sprinkler devices are arranged in an embracing manner and the nozzle 2 is horizontally facing the center point of the embracing. During operation, the horizontal position of the whitening spraying device 5 is adjusted to make the tree trunk located at the center point of the embracing. The liquid for whitening is applied to the surface of the tree trunk through the nozzle 2. The height of the whitening spraying device 5 is adjustable. During the whitening operation, the whitening spraying device 5 is slowly adjusted synchronously with the height of the tree trunk until the trunk is completely whitened. During whitewashing, the relative position of the spraying device and the tree trunk can be detected by the distance measuring device 3 at the end of the spraying body 1, and the position and posture of the spraying body 1 can be appropriately adjusted. Furthermore, by adding a visual capture device, such as a camera, to the spraying device, the color of the tree trunk can be recognized to realize intelligent whitewashing around the tree trunk, and at the same time, the on-site working conditions can be recorded to determine the operating status of the system.

[0026] Specifically, the liquid storage tank 6 can be divided into two independent zones for canning whitewashing liquid and irrigation water respectively. The partition ratio can be allocated according to the frequency of different functional applications. Since the demand for whitewashing liquid or pesticide fertilizer is generally small, a larger proportion of the partition for storing clean water can be retained. Further, a buffer baffle 9 is provided inside the liquid storage tank 6. The buffer baffle 9 is provided with a through hole, which does not affect the circulation of the liquid in the liquid storage tank 6, but can effectively alleviate the impact of the liquid in the storage tank caused by the shaking of the vehicle during transportation. The liquid storage tank 6 can also be provided with a filter at the water inlet to prevent foreign matter from entering the storage tank when the liquid is poured. In addition, the liquid storage tank 6 is also provided with a water level gauge 10, which is used to detect the amount of residual liquid in the storage tank. It can use the principle of a communicating vessel. The liquid storage tanks 6 in different zones are respectively connected to a transparent vertical tube, and the vertical tube is connected to the inside of each zone. Then, the internal liquid level height information can be displayed through the vertical tube. A water level meter based on electrical signals can also be adopted by introducing circuits. The specific structure and application of the water level meter are well known to those skilled in the art and will not be elaborated here.

[0027] The delivery network 7 includes a first pipeline 11 connected to the sprinkler device 4 and a second pipeline 12 connected to the whitening spray device 5. In this embodiment, based on the actual business situation of urban greening, the interior of the liquid storage tank 6 is divided into two partitions: a larger first chamber 14 and a relatively smaller second chamber 13. The first chamber 14 is connected to the first pipeline 11, and the second chamber 13 is connected to the second pipeline 12. The liquid outlet of the second pipeline 12 is divided into multiple groups of outlets and respectively connected to a group of spray devices described in Example 1, thereby realizing the embracing spray device spraying whitening liquid from different arms. Furthermore, for the whitening spray device connected to the second pipeline, the equipment can be reused. Specifically, the liquid inlet end of the second pipeline can be connected to the first chamber and the second chamber of the liquid storage tank at the same time, and a switching device is provided between the second pipeline and the liquid storage tank. The switching device allows the first chamber or the second chamber to connect to the second pipeline. The first pipeline 11 and the second pipeline 12 are also provided with an opening and closing device and a flow control device, through which the opening and closing device and the flow control device respectively control the opening and closing and flow control of the sprinkler device 4 and the whitening spraying device 5. The opening and closing device, the flow control device and the switching device can select an electronic valve, which can be a solenoid valve with waterway selection, and further can be a multi-level opening and closing solenoid valve, which can control the flow rate. The application of the electronic valve can realize the intelligent control of the transmission pipeline network.

[0028] The first pipeline 11 is connected to the sprinkler 4 to realize multi-angle sprinkler irrigation of the lawn. Specifically, the sprinkler 4 is provided with at least two distance measuring devices 3. The distance measuring devices 3 may be set at both ends of a sprinkler, or two sprinklers each having a distance measuring device 3 are connected in series. In this embodiment, the distance measuring devices 3 are set at both ends of a sprinkler. The distance between the sprinkler body 1 and the lawn to be sprinkled is detected by the two distance measuring devices 3, and the current angle between the sprinkler body 1 and the lawn is determined, and then the sprinkler angle of the sprinkler 4 is adjusted to realize multi-angle sprinkler irrigation of the lawn. Further, the sprinkler 4 can adopt a two-stage folding structure, which may specifically include a protective shell 15 and a sprinkler hinged to the protective shell 15. When not in operation, the sprinkler body 1 of the sprinkler can be directly folded and hidden inside the protective shell 15, and the hinge between the sprinkler body 1 and the protective shell 15 can be rotated by a motor. For a sprinkler with multiple sections connected in series, the connection between the two sections of the sprinkler can also be rotated by a motor. The spraying devices can be hinged to each other through their rigid structures or be installed with motors that control rotation. The circulation of liquid between the spraying devices can be achieved by adding flexible connecting pipes. A limit block 16 for limiting the rotation angle can also be set between the spraying devices or between the spraying devices and the protective shell 15, so that the spraying devices or between the spraying devices and the protective shell 15 can be expanded to 180° at most. The distance measuring device 3 can be an infrared distance measuring sensor or an ultrasonic sensor, which determines the distance between the distance measuring device 3 and the surface to be sprayed by capturing the reflected signal. Taking the lawn sprinkler as an example, when the device is working, the spraying body 1 of the spraying device can be first expanded from the protective shell 15, and the nozzle 2 on the spraying device is kept downward. If it is a sprinkler 4 formed by a combination of two spraying devices, after the spraying device comes out of the protective shell 15, the two sections of the spraying body are expanded to 180° to form a straight line sprinkler 4, and the nozzle 2 is guaranteed to be downward. If it is a combination of more sections of spraying devices, it can also be deformed according to the characteristics of the greening structure to adapt to the sprinkler 4. Since the angle of the distance measuring device 3 is adjustable, the two infrared distance measuring sensors can be adjusted to the point where the infrared rays are perpendicular to the straight line where the sprinkler device is located. The straight strip sprinkler device 4 determines whether the sprinkler device 4 is parallel to the lawn through the distance measuring device 3. When the difference between the values ​​detected by the two distance measuring devices 3 is within 10%, it is confirmed that the sprinkler device 4 is parallel to the lawn at this time, and the sprinkler irrigation effect is best at this time. Further, the sprinkler device 4 can also be increased with a lifting control structure. After the sprinkler device 4 is unfolded and kept parallel to the lawn, the lifting structure starts to work. By adjusting the height of the sprinkler device 4 and maintaining the optimal sprinkler irrigation height, the sprinkler device 4 can better irrigate the lawn. The lifting structure used to support the lifting of the sprinkler device 4 is not shown in this embodiment. When the target to be watered is not the lawn, or when watering, some green plants require a larger amount of water, while others require a smaller amount, the angle between the two distance measuring devices 3 and the sprinkler device 4 can be adjusted, and based on the detection structure, the sprinkler device 4 can be sprinkled at a better angle.In addition, the sprinkler device 4 may be provided with a visual capture device 8 such as a camera, through which the sprinkler operation can be monitored in real time.

[0029] The second pipeline 12 is connected to the whitewash spraying device 5 to realize the whitewashing operation on the tree trunk. Figure 5 As shown, the whitewashing spraying device 5 generally requires at least three spraying devices as described in the first embodiment to achieve the whitewashing of the tree trunk 35. However, in order to ensure the quality of whitewashing, Figure 6As shown, in this embodiment, the white-coating spray device 5 is provided with at least four spray devices, at least two of which are connected in series to form a branch arm and connected to a group of outlets of the second pipeline 12, and the angles between the spray devices constituting the same branch arm are adjustable. Specifically, in this embodiment, the second pipeline 12 connects two branches to realize that the two branches spray the tree trunk 35 in an embracing manner, and each branch arm includes two spray devices connected in series with adjustable angles. The white-coating spray device 5 adopts a symmetrical three-section folding structure, each of which is connected to a group of outlets of the second pipeline 12, and the three-section folding structures are respectively a spray gun protective shell 17, a main spray gun 18 and an auxiliary spray gun 19. When not in operation, after the auxiliary spray gun 19 is folded toward the main spray gun 18, the two are folded toward the spray gun protective shell 17 together. The folding and stowing of the three-section folding structure can greatly reduce the space occupied by the white-coating spray device 5. The spray gun protective shell 17, the main spray gun 18 and the auxiliary spray gun 19 are hinged together through a coupling and a control motor. The main spray gun 18 and the auxiliary spray gun 19 can be folded together by the control motor, and the folding angle is controlled within 180°. The control motor can also realize the mutual folding between the main spray gun 18 and the spray gun protective shell 17, and the folding angle is also controlled within 180°. In addition, a camera can be set on the spray gun protective shell 17, the main spray gun 18 or the auxiliary spray gun 19. The camera is used to check the state of the whitewashing of the tree trunk and confirm the position of the tree trunk. In this embodiment, a high-definition camera 82 is set at the end of the spray gun protective shell 17 of the two arms. During the whitewashing operation, the vehicle moves forward at a slow speed, the spray gun protective shells 17 remain parallel to each other, and the high-definition camera 82 is in operation. When the high-definition camera 82 recognizes the tree trunk and is located in the middle of the two high-definition cameras 82, the vehicle stops and prepares to perform the whitewashing operation. After the three-fold structure is unfolded, the spray gun protective shell 17 forms an angle of 135° with the main spray gun 18, and the main spray gun 18 forms an angle of 90° with the auxiliary spray gun 19. The protective shells 15 of the two arms remain parallel, and the two main spray guns 18 and the two auxiliary spray guns 19 enclose a square. The two second distance measuring devices 23 located at the connection between the main spray gun 18 and the auxiliary spray gun 19 are adjusted so that the angle between their measuring directions and the main spray gun 18 is 45° and they face the center of the square surrounded by the four spray guns. The second distance measuring device 23 at the end of the auxiliary spray gun 19 is also adjusted to form an angle of 45° with the auxiliary spray gun 19. In this way, through the mutual linkage of multiple second distance measuring devices 23, the tree trunk can be located in the center of the square surrounded by the four spray guns. When the main spray gun 18 and the auxiliary spray gun 19 reach the appropriate position, start spraying the whitening agent on the tree trunk.The whitening spray device 5 can be installed on the work vehicle through a height adjuster 20, so that the height of the whitening spray device 5 is adjustable. The height adjuster 20 can be used to drive the entire whitening spray device 5 to move up and down during the whitening process of the trunk to adjust the height of the whitening. The height adjuster 20 can be designed according to the transmission principle of the sliding screw. A linear guide with two slots can be set on the height adjuster. A sliding screw is vertically set in the linear guide. A slider is sleeved on the sliding screw. A thread matching the sliding screw is provided inside the slider. The slider passes through the slot and is installed with a whitening spray device through a connector. When the screw rotates, the slider can only move up and down linearly due to the circumferential limit, thereby driving the whitening spray device to move up and down, and realizing the whitening operation of the trunk. Since the specific structure of the height adjuster is well known in the industry, it will not be repeated here. At the same time, the height of the whitening mechanism position can be judged according to the image displayed by the high-definition camera 82. When the high-definition camera 82 recognizes that the white coverage rate of the whitening area reaches a certain level, the main spray gun 18 and the auxiliary spray gun 19 stop spraying. After the coating is completed, the main spray gun 18 and the auxiliary spray gun 19 are folded back, and the vehicle starts and continues to travel until the high-definition camera 82 recognizes the next tree trunk. In addition, in order to avoid the whitewashing process affecting passers-by, a protective baffle can also be set on the device to prevent the paint from leaking.

[0030] The spraying system can be installed on the special operation vehicle 22 through the vehicle platform 21. As the vehicle moves forward, the spraying system is driven to move forward as a whole. When the device arrives at the operation point, it starts to operate, which improves the efficiency of urban greening operations, saves human resource costs, and reduces the harm caused to workers by whitewashing or sprinkler irrigation. The vehicle platform 21 can be used to disassemble and assemble the entire spraying system as a whole, so that the spraying system is suitable for various trucks and the disassembly and assembly is more convenient and quick. Furthermore, the sprinkler device 4 and the whitewashing spraying device 5 can also be installed on the vehicle platform 21 respectively through the horizontal propulsion regulator, so that the sprinkler device 4 and the whitewashing spraying device 5 can be translated in the horizontal plane, thereby adapting to more different greening structures.

[0031] Embodiment 3

[0032] A spraying method suitable for modern complex and diverse greening maintenance work, which uses a single or multiple identical spraying bodies to combine into a spraying terminal that meets different functions, such as a sprinkler device for spraying and irrigating lawns, a whitewashing spray device for whitewashing tree trunks, etc. The different terminals obtained by combining the same unit spraying bodies can achieve terminal function conversion by adjusting the application posture. Specifically, the spraying body used is in the shape of a long strip, and the long strip spraying body can be flexibly built into different spraying terminals like building blocks. There are multiple nozzles distributed on the side wall of the spraying body, and an angle-adjustable distance measuring device is installed at the end of the spraying body. The nozzle and the distance measuring device are arranged on the same side of the spraying body. The posture and position of the spraying terminal can be obtained through detection by the variable angle distance measuring device, and the working state of the spraying terminal can be adjusted by using the distance measuring device. The variable angle design of the distance measuring device enables it to meet a variety of different application scenarios. Furthermore, the spraying terminal can be connected to liquid storage tanks storing multiple liquids at the same time, and the equipment reuse of the spraying terminal can be achieved by switching different liquid supplies. For example, a whitewash spraying device or a sprinkler device for spraying pesticides and fertilizers can be connected to a liquid storage chamber filled with clean water at the same time. After the whitewashing operation or spraying operation is completed, the corresponding device is converted into a spraying terminal that meets the irrigation needs. On the one hand, it can improve the terminal utilization rate and the working efficiency of the spraying system. On the other hand, clean water irrigation can clean each spray body in time to avoid damage to the spray body caused by the drying of the whitewashing liquid or pesticides.

[0033] The above description is only a preferred embodiment of the present invention and does not limit the technical scope of the present invention. Therefore, any changes or modifications made according to the claims and description of the present invention should fall within the scope of the patent of the present invention.

Claims

1. A spraying device, comprising a spraying body, characterized in that The spray body is in the shape of an elongated strip, a plurality of nozzles are distributed on the side wall of the spray body, an angle-adjustable distance measuring device is installed at the end of the spray body, and the nozzle and the distance measuring device are arranged on the same surface of the spray body.

2. The spraying device according to claim 1, characterized in that: The liquid inlet of the spray body is arranged at the end of the spray body.

3. The spraying device according to claim 1, characterized in that: The distance measuring devices are arranged at both ends of the spraying body and are arranged on the same surface of the spraying body.

4. A spraying system using the spraying device according to any one of claims 1 to 3, characterized in that: It includes a sprinkler irrigation device, a whitewash spraying device, a liquid storage tank and a delivery pipe network, wherein the delivery pipe network connects the sprinkler irrigation device and the whitewash spraying device to the liquid storage tank respectively; the sprinkler irrigation device includes a single or multiple spraying devices, and the nozzles are vertically downward; the whitewash spraying device includes multiple spraying devices, and the multiple spraying devices are arranged in an embracing manner and the nozzles are horizontally facing the center point of the embracing, and the height of the whitewash spraying device is adjustable.

5. The spraying system according to claim 4, characterized in that: The liquid storage tank is partitioned and a buffer baffle is provided inside the liquid storage tank. The delivery pipeline network includes a first pipeline connected to the sprinkler device and a second pipeline connected to the whitewash spray device. The interior of the liquid storage tank is divided into two partitions, a first chamber and a second chamber. The first chamber is connected to the first pipeline, and the second chamber is connected to the second pipeline.

6. The spraying system according to claim 5, characterized in that: The liquid inlet end of the second pipeline is connected to the first cavity and the second cavity of the liquid storage tank at the same time, and a switching device is provided between the second pipeline and the liquid storage tank, and the switching device connects the first cavity or the second cavity to the second pipeline.

7. The spraying system according to claim 5, characterized in that: The white coating spraying device is provided with at least four spraying devices, at least two of which are connected in series to form a support arm and connected to a group of outlets of the second pipeline, and the angle between the at least two spraying devices constituting the support arm is adjustable.

8. The spraying system according to claim 4, characterized in that: The sprinkler irrigation device is provided with at least two of the distance measuring devices.

9. The spraying system according to claim 4, characterized in that: The sprinkler device and the whitewash spray device can be translated in a horizontal plane.

10. Spraying method, characterized in that: A single or multiple identical spray bodies are combined into a spray terminal that meets different functions. The spray body is in the shape of an elongated strip, and a plurality of nozzles are distributed on the side wall of the spray body. An angle-adjustable distance measuring device is installed at the end of the spray body. The nozzle and the distance measuring device are arranged on the same surface of the spray body. The distance measuring device is used to adjust the working state of the spray terminal. The spray terminal is simultaneously connected to a liquid storage tank storing a variety of liquids, and equipment reuse of the spray terminal is achieved by switching different liquid supplies.

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