A pesticide spraying device

Abstract

The present application discloses a pesticide spraying device, which belongs to the technical field of agricultural machinery and is used to provide a pesticide spraying device that is efficient in operation, easy to use, and has a better spraying effect. The device comprises a splicing frame formed by connecting a plurality of splicing units, the splicing frame extending in a straight line, and suspensions are arranged at equal intervals above the splicing frame. The suspensions comprise an inner and outer double-layer structure, namely an inner toughness layer and an outer fire-resistant layer. The toughness layer is suitable for filling with a gas with a density less than that of air. The bottoms of the toughness layer and the fire-resistant layer share a hard air nozzle, and the hard air nozzle is provided with a connecting cap on the outer cover. The suspension is suitable for connecting to the splicing frame through the connecting cap. The present application provides a hard splicing frame structure between the suspended balloons, and arranges a liquid supply pipe with a spray head below the splicing frame, so that the spacing between the suspended balloons and the spray head can be kept stable, and the spraying of the pesticide is more uniform. At the same time, the design is additionally configured with a stabilizing mechanism, which can better resist the influence of environmental airflow.

Description

Technical Field

[0001] The present application relates to the technical field of agricultural machinery, and in particular to a pesticide spraying device. Background Art

[0002] Spraying pesticides is a very hard job for farmers, because traditional pesticide sprayers are relatively heavy and need to be carried on the back of the user, and the pesticides need to be manually applied and pressure is applied, which further increases the pressure on the wearer's shoulders. Long-term use will cause damage to the user's body. Later, an electric pesticide sprayer was added to the market. Although it does not require a joystick and frees one hand of the user, the additional electric equipment not only increases the total weight of the pesticide sprayer, but also reduces the maximum capacity of the medicine box, and does not effectively reduce the burden on the user.

[0003] Although the use of drones or helicopters for pesticide spraying greatly liberates manpower, the cost of using the equipment is very high, making it difficult for ordinary farmers to benefit. In the existing technology, there is a method of using light balloons to suspend spray pipes, which can achieve easier and more efficient pesticide spraying at a relatively low cost. However, this method is seriously affected by the ambient wind, and the distance between the spray heads is easily changed, resulting in uneven pesticide spraying, and frequent leaks or overspray. Summary of the Invention

[0004] The purpose of this application is to provide a pesticide spraying device that is efficient in operation, easy to use and has better spraying effect.

[0005] To achieve the above objectives, the present application provides a pesticide spraying device: comprising a splicing frame formed by connecting a plurality of splicing units, the splicing frame extending in a straight line, a suspension being arranged at equal intervals above the splicing frame, the suspension comprising an inner and outer double-layer structure, namely an inner tough layer and an outer refractory layer, the tough layer being suitable for being filled with a gas with a density smaller than that of air, the bottom of the tough layer and the refractory layer sharing a hard gas nozzle, the hard gas nozzle being outer-circuited with a connecting cap, the suspension being suitable for being connected to the splicing frame through the connecting cap, a liquid supply pipe being connected below the splicing frame, the length of the liquid supply pipe being greater than that of the splicing frame, the two ends of the liquid supply pipe extending downward and respectively connected to a medicine box mechanism, a plurality of equally spaced spray heads being arranged on the side of the liquid supply pipe below the splicing frame, the medicine box mechanism being suitable for supplying high-pressure liquid pesticide to the spray head through the liquid supply pipe to generate medicine mist, and since the spacing between the spray heads is stable, the medicine mist is evenly diffused, and leakage or overspray problems are not prone to occur.

[0006] As a preferred embodiment, the splicing frame includes a bridging member and a connecting rod located in the middle part, and extension rods located at both ends. The bridging member is suitable for connecting with the connecting rod or the extension rod. The main part of the bridging member is a central handle. The outer side surface of the central handle has a pair of symmetrically arranged cantilevers in parallel. The end faces of the cantilevers are provided with plug-in holes. Both ends of the connecting rod have plug-in ends, and one end of the extension rod has a plug-in end. The plug-in end is suitable for plugging in with the plug-in hole to facilitate splicing and disassembly.

[0007] As a preferred embodiment, the cantilever is provided with a pin hole passing through the upper and lower surfaces and the plug-in hole, and the plug-in end is also provided with a pin hole passing through the upper and lower surfaces. After the plug-in end is matched with the plug-in hole, a connecting piece passes through the pin hole. The connecting piece includes a bolt and a nut made of plastic. The bolt passes through all the pin holes at the same position and then matches with the nut to ensure the connection stability of the splicing end.

[0008] As a preferred embodiment, the central handle is provided with a through hole extending upward and downward, and the connecting cap has a tapered hole extending upward and downward, suitable for the hard air nozzle to pass through. The upper end of the connecting cap has an upper limit ring and the lower end has a lower limit ring. A slot is formed between the upper limit ring and the lower limit ring, which is suitable for engaging with the through hole to ensure the connection stability between the suspension and the splicing frame.

[0009] As a preferred embodiment, the upper end of the tapered hole is large and the lower end is small. The hard air nozzle is connected to the air nozzle cap after passing through the connecting cap from top to bottom. The lower end of the hard air nozzle is the air inlet and outlet, and a valve core is provided inside. The outer side of the hard air nozzle is provided with an external thread, one end of the air nozzle cap is open, and an internal thread is provided inside, which is suitable for cooperating with the external thread. The outer side of the air nozzle cap is provided with a friction groove to facilitate the rotation of the air nozzle cap.

[0010] As a preference, the toughness layer is made of rubber material, the gas filled inside is hydrogen, and the fire-resistant layer is made of fire-resistant canvas to avoid interlocking explosion after the suspension is scratched, so that the suspension has higher strength and durability.

[0011] As a preference, the bridge member, connecting rod and extension rod are made of carbon fiber material, the lower surface of each connecting rod and extension rod is fixedly connected to a vertical column, the lower end of the vertical column is fixedly connected to a clamping ring, the clamping ring has an opening connecting the inner and outer side walls, the liquid supply pipe is a soft plastic pipe, which is inserted into the clamping ring through the opening, so that the liquid supply pipe 3 will be suspended in the air and will not come into contact with the agricultural work that needs to be sprayed.

[0012] As a preferred embodiment, the medicine box mechanism includes a placement plate, the upper surface of which is provided with a medicine tank and a pump, the output end of the pump is connected to the end of the liquid supply pipe through a one-way valve, and is suitable for transporting the liquid pesticide in the medicine tank to the liquid supply pipe, and the bottom of the placement plate is also provided with a universal wheel, and the placement plate is connected to a handle through a pull rod, which is convenient for the user to move the pesticide spraying equipment.

[0013] As a preferred embodiment, stabilization mechanisms are provided at both ends of the splicing frame, and the stabilization mechanisms include a crossbeam perpendicular to the extension rod, the middle of the crossbeam is fixedly connected to the end of the extension rod, and both ends of the crossbeam are fixedly connected to a motor, and the output shaft of the motor is vertical and fixedly connected to a propeller, which maintains the horizontality of the suspended part by active rotation, and can better help the suspended part of the pesticide spraying equipment resist air disturbances.

[0014] As a preferred embodiment, a level sensor is provided in at least one of the extension rods, a level sensor is provided in at least one of the crossbeams, and a power supply and a controller are provided in the medicine box mechanism, which are suitable for controlling the operation of the pump and are electrically connected to the motor and the level sensor through a signal line hung on the splicing frame to achieve automatic control, reduce the user's operation workload, simplify the operation steps, and make it easier to use.

[0015] Compared with the prior art, the present invention has the following advantages:

[0016] (1) By setting a rigid splicing frame structure between the suspended balloons and arranging a liquid supply pipe with a spray head under the splicing frame, the suspended balloons and the spray head can maintain a stable distance, the spray of pesticides is more uniform, and the occurrence of missed spraying and overspraying is effectively reduced. At the same time, compared with existing products of this type, this design is additionally equipped with a stabilization mechanism, which can better resist the influence of environmental airflow;

[0017] (2) This product does not require the user to carry any weight, freeing the user's hands, and has a certain degree of automation, making it easy and convenient to use. The width of the splicing frame can be flexibly changed, and it can be used for spraying operations in very wide fields, so the work efficiency is very high. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 It is a three-dimensional schematic diagram of the overall structure of the pesticide spraying equipment;

[0019] Figure 2 A schematic diagram of the connection between the suspension body and stabilization mechanism of the pesticide spraying equipment and the splicing frame;

[0020] Figure 3 For the pesticide spraying equipment Figure 2 A local enlarged view of point A;

[0021] Figure 4 This is a schematic diagram of the connection between the suspension body and the splicing frame of the pesticide spraying equipment;

[0022] Figure 5 For the pesticide spraying equipment Figure 4 A partial enlarged view of point B;

[0023] Figure 6 a first stereoscopic thumbnail image of the splicing frame of the pesticide spraying equipment;

[0024] Figure 7 a second stereoscopic thumbnail image of the spliced ​​frame of the pesticide spraying equipment;

[0025] Figure 8 A three-dimensional cutaway thumbnail of a spliced ​​frame of the pesticide spraying equipment;

[0026] Figure 9 For the pesticide spraying equipment Figure 8 A partial enlarged view of point C;

[0027] Figure 10 For the pesticide spraying equipment Figure 8 A partial enlarged view of point D;

[0028] Figure 11 A three-dimensional structural cross-sectional view of a connecting rod of the pesticide spraying equipment;

[0029] Figure 12 A three-dimensional structural cross-sectional view of the extension rod of the pesticide spraying equipment;

[0030] Figure 13 A three-dimensional structural cross-sectional view of the bridge component of the pesticide spraying equipment;

[0031] Figure 14 A sectional view of the three-dimensional structure of the suspension of the pesticide spraying equipment;

[0032] Figure 15 For the pesticide spraying equipment Figure 14 A local enlarged view of point E;

[0033] Figure 16 A three-dimensional view of the cooperation between the air nozzle cap and the suspension body of the pesticide spraying equipment;

[0034] Figure 17 A schematic diagram of the three-dimensional structure of the suspension of the pesticide spraying equipment;

[0035] Figure 18 For the pesticide spraying equipment Figure 17 A partial enlarged view of point F;

[0036] Figure 19 This is a schematic diagram of the three-dimensional structure of the air nozzle cap of the pesticide spraying equipment;

[0037] Figure 20 A three-dimensional structural cross-sectional view of the connecting cap of the pesticide spraying equipment;

[0038] Figure 21 A thumbnail diagram of the three-dimensional structure of the liquid supply pipe of the pesticide spraying equipment;

[0039] Figure 22 For the pesticide spraying equipment Figure 21 A local enlarged view of point G;

[0040] Figure 23 A first stereoscopic view of a medicine box mechanism of the pesticide spraying device;

[0041] Figure 24 This is a second stereoscopic view of the medicine box mechanism of the pesticide spraying equipment.

[0042] In the figure: 1. Suspension; 101. Tough layer; 102. Refractory layer; 103. Hard gas nozzle; 104. Valve core; 105. External thread; 110. Gas nozzle cap; 111. Internal thread; 112. Friction groove; 120. Connecting cap; 121. Upper limit ring; 122. Lower limit ring; 123. Tapered hole; 124. Slot; 2. Splicing frame; 201. Connecting end; 202. Pin hole; 210. Bridge piece; 211. Central handle; 212. Cantilever; 213. Through Hole; 214, plug-in hole; 220, connecting rod; 230, connecting piece; 231, bolt; 232, nut; 240, extension rod; 205, vertical column; 206, snap ring; 3, liquid supply pipe; 301, spray head; 4, stabilizing mechanism; 401, crossbeam; 402, motor; 403, propeller; 5, medicine box mechanism; 501, medicine tank; 502, pump; 503, one-way valve; 504, placement plate; 505, pull rod; 506, handle; 507, universal wheel. DETAILED DESCRIPTION

[0043] Below, the present application is further described in conjunction with specific implementation methods. It should be noted that, under the premise of no conflict, the various embodiments or technical features described below can be arbitrarily combined to form new embodiments.

[0044] In the description of this application, it should be noted that for directional words, such as the terms "center", "horizontal", "longitudinal", "length", "width", "thickness", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", "clockwise", "counterclockwise" and so on, the directions and positional relationships indicated are based on the directions or positional relationships shown in the accompanying drawings, which are only for the convenience of describing this application and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and cannot be understood as limiting the specific scope of protection of this application.

[0045] It should be noted that the terms "first", "second", etc. in the description and claims of this application are used to distinguish similar objects, and are not necessarily used to describe a specific order or sequence.

[0046] The terms "comprises" and "having" and any variations thereof in the specification and claims of this application are intended to cover non-exclusive inclusions. For example, a process, method, system, product or apparatus that includes a series of steps or elements is not necessarily limited to those steps or elements expressly listed, but may include other steps or elements not expressly listed or inherent to such process, method, product or apparatus.

[0047] like Figure 1-24 The pesticide spraying equipment shown includes a splicing frame 2 formed by connecting multiple splicing units. The splicing units are made of hard materials, which can make the spliced ​​splicing frame 2 have good straightness. The splicing frame 2 includes a bridge member 210 and a connecting rod 220 located in the middle part, and extension rods 240 located at both ends. Usually, only two extension rods 240 are needed, and the number of bridge members 210 and connecting rods 220 usually needs to be several, and there is one more bridge member 210 than connecting rod 220. In the minimalist mode, the connecting rod 220 can be omitted, and only one bridge member 210 and two extension rods 240 are used to work together. The bridge member 210, the connecting rod 220 and the extension rod 240 are made of carbon fiber material, which has both high strength and light weight. In this way, even if the splicing frame 2 is very long after connection, its weight will not be too large.

[0048] In order to facilitate the length expansion, the structure of the splicing unit is designed symmetrically, so that the bridge member 210 can be connected to the connecting rod 220 or the extension rod 240, that is, the connecting rod 220 and the extension rod 240 cannot be directly connected. Specifically, the main part of the bridge member 210 is a round pancake-shaped central handle 211, and the outer side of the central handle 211 has a pair of symmetrically parallel cantilevered arms 212, the cantilevered arms 212 have a certain material thickness, and the end face of the cantilevered arms 212 is provided with a directional The central handle 211 extends through the insertion hole 214. Both ends of the connecting rod 220 have an insertion end 201. The extension rod 240 has only one end with the insertion end 201. Any insertion end 201 can be plugged into the insertion hole 214. This means that there are only two ways to connect the bridge member 210, the connecting rod 220 and the extension rod 240. That is, adjacent bridge members 210 can only be connected through the connecting rod 220, and the extension rod 240 can only be connected to the connecting rod 220 through the bridge member 210. It should be noted that in order to ensure the stability of the connection between the bridge member 210, the connecting rod 220 and the extension rod 240, a pin hole 202 passing through the upper and lower surfaces and the plug hole 214 will be opened on the cantilever 212, and the plug end 201 will also be provided with a pin hole 202 passing through the upper and lower surfaces. The pin holes 202 opened at the plug end 201 and the plug hole 214 can be well aligned after plugging. In this way, after the plug end 201 is matched with the plug hole 214, the pin hole 202 can pass through the connector 230. In order to reduce the dead weight of the entire pesticide spraying equipment as much as possible, the connector 230 will not be made of alloy material. For example, in this embodiment, the connector 230 uses a bolt 231 and a nut 232 made of plastic. The bolt 231 passes through all the pin holes 202 at the same position and then cooperates with the nut 232 to achieve tightening between the plugged objects. Although the splicing frame 2 is allowed to have a certain degree of curvature, the splicing frame 2 as a whole will extend roughly along a straight line, which is easier to keep horizontal.

[0049] Suspensions 1 are arranged at equal intervals above the splicing frame 2. Since the splicing frame 2 is very flat and easy to keep horizontal, the configured suspensions 1 can also be arranged at equal intervals within the same horizontal height range, thereby providing uniform buoyancy. The suspension 1 includes an inner and outer double-layer structure, namely an inner toughness layer 101 and an outer fire-resistant layer 102. The toughness layer 101 is suitable for filling with a gas with a density smaller than that of air, such as hydrogen. Helium, which is safer, can also be used, but the cost of helium is high, so hydrogen, which may explode, is usually used. The double-layer structure used in this design is to prevent hydrogen from exploding and further prevent chain explosion reactions. The specific implementation method is to make the toughness layer 101 still made of the rubber material of conventional balloons, but the quality of this rubber will be better and can be repeatedly inflated and deflated. Since the rubber layer is easily damaged by heat or puncture, the fire-resistant layer 102 on the outer layer is made of fireproof canvas, which has relatively poor elasticity. , but it is puncture-resistant and fireproof, and can protect the internal rubber layer very well; on the other hand, since the fireproof canvas does not have such good expansion performance as rubber, it can well limit the maximum size of the internal toughness layer 101, and prevent the toughness layer 101 from exploding due to overblowing, so that all suspensions 1 have the same standard size, provide almost the same buoyancy, and are easier to achieve force balance; the fire-resistant layer 102 made of fireproof canvas has another advantage that its own air permeability is poor, and it can expand or deflate synchronously with the inner toughness layer 101, which is convenient for the suspension 1 to be stored when not in use. Even if the toughness layer 101 explodes instantly, the suspension 1 can maintain a full state for a long time to provide buoyancy. Even if the fire-resistant layer 102 is punctured by a strong external force, allowing the internal hydrogen to leak and come into contact with the air to explode, the suspension 1 with a complete fire-resistant layer 102 next to it can also withstand the high-temperature impact generated by the explosion, thereby ensuring the structural integrity and functional stability of the suspension 1 that has not been punctured.

[0050] The bottom of the toughness layer 101 and the refractory layer 102 share a hard gas nozzle 103, which is generally supported by a hard synthetic material. The hard gas nozzle 103 is provided with a connecting cap 120 on the outer cover, and the suspension 1 can be connected to the splicing frame 2 through the connecting cap 120. Specifically: the central handle 211 is provided with a through hole 213 that passes through the upper and lower parts, and the connecting cap 120 has a tapered hole 123 that passes through the upper and lower parts for the hard gas nozzle 103 to pass through. The upper end of the connecting cap 120 has an upper limit ring 121 and the lower end has a lower limit ring 122. A card groove 124 is formed between the upper limit ring 121 and the lower limit ring 122, which can be engaged with the through hole 213 to limit the distance between the suspension 1 and the splicing frame 2. The upper end of the tapered hole 123 is large and the lower end is small, which is used to better fit the conical bottom of the suspension 1. The hard gas nozzle 103 passes through the connecting cap 120 from top to bottom and is connected to the gas nozzle The cap 110, on the one hand, prevents the hard air nozzle 103 from leaking; on the other hand, it is used to prevent the suspension 1 from detaching from the connecting cap 120. The lower end of the hard air nozzle 103 is the air inlet and outlet, and both inflation and exhaust are completed by this port. A valve core 104 is provided inside, which is equivalent to the one-way valve 503 inside the hard air nozzle 103. After inflation, the air supply joint valve core 104 is removed to automatically prevent the suspension 1 from exhausting. The outer side of the hard air nozzle 103 is provided with an external thread 105, and one end of the air nozzle cap 110 is open, and an internal thread 111 is provided inside, which is suitable for threaded cooperation with the external thread 105. It is easy to disassemble and not easy to fall off, and the threaded tightening cooperation method can well prevent air leakage. The outer side of the air nozzle cap 110 is provided with a friction groove 112, which is used to enhance friction when the fingertip touches the air nozzle cap 110, making it easier to rotate the air nozzle cap 110.

[0051] Stabilizing mechanisms 4 are provided at both ends of the splicing frame 2 for actively restoring the splicing frame 2 in a suspended state to a horizontal state. The stabilizing mechanism 4 includes a crossbeam 401 perpendicular to the extension rod 240. The crossbeam 401 is usually made of the same material as the splicing frame 2, or other materials with light weight and good rigidity. Of course, the purpose is to make it as lightweight as possible. The middle of the crossbeam 401 is fixedly connected to the end of the extension rod 240. The front and rear weights of the crossbeam 401 are symmetrical and the force is evenly distributed. Both ends of the crossbeam 401 are fixedly connected to a motor 402. Except for the internal stator and rotor cells of the motor 402 which are made of metal, the rest of the shell is made of lightweight plastic, such as carbon fiber, which is relatively expensive. The output shaft of the motor 402 is vertically and fixedly connected to a propeller 403 which is also made of lightweight material. It should be noted that in order to realize the active level maintenance function, it is necessary to have at least one extension rod 240 A horizontal sensor is provided inside, and a horizontal sensor is provided in at least one crossbeam 401 to ensure that there are horizontal sensors in two directions perpendicular to each other. Of course, the setting of the horizontal sensor also needs to take into account the equal weight distribution on the left and right sides of the suspended part of the pesticide spraying equipment, and the center falls in the middle position. Under normal circumstances, in order to reduce the weight of the suspended part as much as possible, horizontal sensors are generally only provided on one side extension rod 240 and the other side crossbeam 401. Although the setting positions are asymmetrical, horizontal sensors of different weights can be selected for weight matching, which can also make the suspended part have a symmetrical center of gravity distribution. The medicine box mechanism 5 in the equipment is provided with a power supply and a controller, which is suitable for controlling the operation of the pump 502, and is electrically connected to the motor 402 and the horizontal sensor through a signal line hung on the splicing frame 2. The power supply is generally a battery for mobile power supply, and the controller is used to receive feedback signals and send control signals.

[0052] A liquid supply pipe 3 is connected to the bottom of the splicing frame 2 for conveying liquid pesticide solution. In fact, a vertical column 205 is fixedly connected to the lower surface of each connecting rod 220 and the extension rod 240. One function of the vertical column 205 is to mark the lower surface of the connecting rod 220 and the extension rod 240. A clamping ring 206 is fixedly connected to the lower end of the vertical column 205. The clamping ring 206 has an opening connecting the inner and outer side walls. The opening can be set in the side direction or at the bottom. The liquid supply pipe 3 adopts a soft plastic tube and is inserted through the opening. The inside of the clamping ring 206 can be subjected to the buoyancy transmitted by the suspension 1 to the splicing frame 2. The length of the liquid supply pipe 3 is greater than the splicing frame 2, ensuring that the liquid supply pipe 3 has a certain length of overhanging part. The liquid supply pipe 3 is located on the side below the splicing frame 2 and is provided with a plurality of equidistantly arranged spray heads 301 for atomizing liquid pesticides so that the pesticides are sprayed more evenly. The two ends of the liquid supply pipe 3 extend downward and are respectively connected to a medicine box mechanism 5. The medicine box mechanism 5 is used to supply high-pressure liquid pesticides to the spray head 301 through the liquid supply pipe 3 to generate The specific structure of the medicine box mechanism 5 to realize this function includes a placement plate 504, and a medicine tank 501 and a pump 502 are provided on the upper surface of the placement plate 504. The medicine tank 501 stores a pesticide solution that has been diluted to a suitable concentration. The pump 502 is used to pressurize the pesticide solution. The output end of the pump 502 is connected to the end of the liquid supply pipe 3 through a one-way valve 503, and is used to transport the liquid pesticide in the medicine tank 501 to the liquid supply pipe 3. The function of the one-way valve 503 is to prevent the liquid in the medicine tank 501 on the same side from running out of the pump. After 502 stops rotating, the pump 502 on the other side will reverse the flow of pressurized liquid, which is equivalent to blocking the end of the liquid supply pipe 3 that does not supply liquid to the outside, and can maintain the stability of the liquid pressure inside the liquid supply pipe 3. A universal wheel 507 is also provided at the bottom of the placement plate 504 to facilitate the movement of the entire medicine box mechanism 5. The placement plate 504 is connected to a handle 506 through a pull rod 505. The user can push the medicine box mechanism 5 forward by holding the handle 506, and the suspended part of the spraying equipment will also move forward under the traction of the liquid supply pipe 3.

[0053] Working principle: When in use, calculate the appropriate number of connecting rods 220 and bridge pieces 210 according to the width of the field to be sprayed, and then assemble the connecting rods 220, bridge pieces 210 and extension rods 240 into a complete splicing frame 2 through the connecting piece 230, and then configure the stabilizing mechanism 4 at both ends of the splicing frame 2. At this time, the semi-finished product of the equipment is equivalent to a relatively long drone. Start the propeller 403 of the stabilizing mechanism 4 to make the semi-finished product in a suspended state, and then two workers will open the suspension 1 from the middle to both sides, that is, the inflated suspension 1 will be inserted into the splicing frame. The corresponding hole of the splicing frame 2 is inserted into the corresponding hole of the splicing frame 2, and the air nozzle cap 110 is screwed on the hard air nozzle 103 at the lower end of the suspension 1 from the bottom of the splicing frame 2. As the suspension 1 continues to increase, the buoyancy of the splicing frame 2 becomes larger and larger, and the speed of the stabilizing mechanism 4 becomes smaller and smaller. It is only started when the splicing frame 2 is in a horizontal state. Finally, the spray head 301 of the liquid supply pipe 3 between the two medicine box mechanisms 5 placed on the field path is stuck downward on the clamping ring 206 at the bottom of the splicing frame 2 to use the pesticide spraying equipment. Two workers push the two medicine box mechanism 5 carts respectively, and pull the overhanging part of the liquid supply pipe 3. Under the action of the pump 502, the spray head 301 in the suspended state will move forward in a horizontal manner, and the pump 502 will transport the pesticide solution in the medicine tank 501 to the spray head 301 through the liquid supply pipe 3 to achieve large-scale and efficient spraying. Since the operator hardly needs to carry any weight, physical energy consumption is greatly reduced. When the equipment is pushed from the head of the field to the end of the field, the field is sprayed. The pump 502 stops working, and the operator can push the medicine box mechanism 5 trolley to the next field that needs to be sprayed to continue the next round of spraying. If the width of the field's spraying direction changes, only one operation is required. Personnel move to the middle of the splicing frame 2, remove or add one or more splicing units and suspensions. When the pesticide spraying equipment is finished, turn off the stabilization mechanism 4, remove the suspension 1, and let the suspended part fall to the open ground to dismantle the splicing frame 2. In order to avoid the waste of hydrogen, the suspension 1 does not need to be deflated. In order to ensure the safety of the equipment during storage and transportation, the suspension 1 needs to be deflated. Of course, the hydrogen can also be recovered, but there will be a certain loss ratio in the recovery. After the suspension 1 is deflated, it occupies less storage space and is more convenient to transport and transfer.

[0054] The above describes the basic principles, main features, and advantages of the present application. Those skilled in the art should understand that the present application is not limited to the above-described embodiments. The above-described embodiments and the specification merely illustrate the principles of the present application. Various changes and improvements may be made to the present application without departing from the spirit and scope of the present application. These changes and improvements fall within the scope of the present application for which protection is sought. The scope of protection claimed by the present application is defined by the appended claims and their equivalents.

Claims

1. A pesticide spraying device, characterized in that: The invention relates to a splicing frame (2) formed by connecting a plurality of splicing units, wherein the splicing frame (2) extends in a straight line, comprises a bridge member (210) and a connecting rod (220) located in the middle part, and an extension rod (240) located at both ends, wherein the bridge member (210) is suitable for connecting with the connecting rod (220) or the extension rod (240), and the main part of the bridge member (210) is a central handle (211), and the outer side surface of the central handle (211) has a pair of cantilever arms (212) arranged symmetrically and in parallel, and the end surface of the cantilever arm (212) is provided with a plug-in connection. The connecting rod (220) has a plug-in end (201) at both ends, and the extension rod (240) has a plug-in end (201) at one end, and the plug-in end (201) is suitable for plugging with the plug-in hole (214). Suspensions (1) are arranged at equal intervals above the splicing frame (2). The suspension (1) includes an inner and outer double-layer structure, which are an inner toughness layer (101) and an outer fire-resistant layer (102). The toughness layer (101) is suitable for being filled with a gas with a density less than that of air. The toughness layer (101) and the fire-resistant layer (102) are arranged at equal intervals above the splicing frame (2). 2) shares a hard gas nozzle (103) at the bottom, the hard gas nozzle (103) is provided with a connecting cap (120) on the outer cover, the central handle (211) is provided with a through hole (213) extending upward and downward, the connecting cap (120) has a tapered hole (123) extending upward and downward, suitable for the hard gas nozzle (103) to pass through, the upper end of the connecting cap (120) has an upper limit ring (121), and the lower end has a lower limit ring (122), a slot (124) is formed between the upper limit ring (121) and the lower limit ring (122), suitable for being connected to the through hole (213) ) are engaged, the suspension (1) is suitable for being connected to the splicing frame (2) through the connecting cap (120), a liquid supply pipe (3) is connected to the bottom of the splicing frame (2), the length of the liquid supply pipe (3) is greater than that of the splicing frame (2), both ends of the liquid supply pipe (3) extend downward and are respectively connected to a medicine box mechanism (5), a plurality of equidistantly arranged spray heads (301) are provided on the side of the liquid supply pipe (3) below the splicing frame (2), and the medicine box mechanism (5) is suitable for supplying high-pressure liquid pesticide to the spray head (301) through the liquid supply pipe (3) to generate medicine mist.

2. The pesticide spraying device according to claim 1, characterized in that: The cantilever (212) is provided with a pin hole (202) that passes through the upper and lower surfaces and the plug hole (214). The plug end (201) is also provided with a pin hole (202) that passes through the upper and lower surfaces. After the plug end (201) is matched with the plug hole (214), a connecting piece (230) passes through the pin hole (202). The connecting piece (230) includes a bolt (231) and a nut (232) made of plastic. The bolt (231) passes through all the pin holes (202) at the same position and then matches with the nut (232).

3. The pesticide spraying device according to claim 2, characterized in that: The upper end of the tapered hole (123) is large and the lower end is small. The hard air nozzle (103) passes through the connecting cap (120) from top to bottom and is connected to the air nozzle cap (110). The lower end of the hard air nozzle (103) is an air inlet and outlet, and a valve core (104) is provided inside. The outer side surface of the hard air nozzle (103) is provided with an external thread (105). One end of the air nozzle cap (110) is open and an internal thread (111) is provided inside, which is suitable for threaded engagement with the external thread (105). The outer side surface of the air nozzle cap (110) is provided with a friction groove (112).

4. The pesticide spraying device according to claim 3, characterized in that: The toughness layer (101) is made of rubber material, and the gas filled inside is hydrogen. The fire-resistant layer (102) is made of fire-resistant canvas.

5. The pesticide spraying device according to claim 4, characterized in that: The bridge member (210), the connecting rod (220) and the extension rod (240) are made of carbon fiber material. The lower surface of each connecting rod (220) and the extension rod (240) is fixedly connected to a vertical column (205). The lower end of the vertical column (205) is fixedly connected to a clamping ring (206). The clamping ring (206) has an opening communicating with the inner and outer side walls. The liquid supply pipe (3) is a soft plastic pipe and is clamped into the clamping ring (206) through the opening.

6. The pesticide spraying device according to any one of claims 1 to 5, characterized in that: The medicine box mechanism (5) includes a placement plate (504), the upper surface of which is provided with a medicine tank (501) and a pump (502), the output end of the pump (502) being connected to the end of the liquid supply pipe (3) via a one-way valve (503), and being suitable for delivering the liquid pesticide in the medicine tank (501) to the liquid supply pipe (3), the bottom of the placement plate (504) is also provided with a universal wheel (507), and the placement plate (504) is connected to a handle (506) via a pull rod (505).

7. The pesticide spraying device according to claim 6, characterized in that: Stabilizing mechanisms (4) are provided at both ends of the splicing frame (2), and the stabilizing mechanisms (4) include a crossbeam (401) perpendicular to the extension rod (240), the middle of the crossbeam (401) is fixedly connected to the end of the extension rod (240), and both ends of the crossbeam (401) are fixedly connected to a motor (402), and the output shaft of the motor (402) is vertical and fixedly connected to a propeller (403).

8. The pesticide spraying device according to claim 7, characterized in that: At least one of the extension rods (240) is provided with a level sensor, at least one of the crossbeams (401) is provided with a level sensor, and the medicine box mechanism (5) is provided with a power supply and a controller suitable for controlling the operation of the pump (502), and is electrically connected to the motor (402) and the level sensor via a signal line hung on the splicing frame (2).

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