Push-pull ultra-low volume sprayer

Abstract

The utility model discloses a push-pull type ultra-low volume sprayer, which relates to the technical field of epidemic prevention equipment, and comprises a box body, wherein a support plate is parallelly arranged at the bottom of the box body, an axle is arranged between the support plates, wheels are rotatably arranged at both ends of the axle, and insertion cavities are symmetrically arranged on both sides of the box body, and a traction handle is detachably installed in the insertion cavity; a liquid outlet pipe is arranged in the box body, and the other end of the liquid outlet pipe is connected to a spray gun, one end of the spray gun is provided with a motor, and the output end of the motor is provided with a fan; a return air duct is also arranged in the spray gun, and the other end of the return air duct is communicated with the box body. The utility model can enable workers to push and pull instead of carrying during operation by arranging wheels and traction handles, thereby reducing body load and labor intensity. At the same time, by arranging a motor and a fan, the liquid medicine reaching the spray gun can be pressurized twice, thereby improving atomization quality and efficiency and reducing waste.

Description

Technical Field

[0001] The utility model relates to the technical field of epidemic prevention equipment, in particular to a push-pull type ultra-low capacity sprayer. Background Art

[0002] Sprayer is the abbreviation of spray equipment. It uses air suction to turn medicine or other liquids into mist and spray them evenly onto other objects. It consists of a compressed air device, a capillary tube, a nozzle, etc.

[0003] The ultra-low volume sprayer is a high-power ultra-low volume sprayer with the smallest mist particles. It is particularly suitable for disinfection and pest control in large venues. It has the longest spray distance of up to 30 meters and low noise (less than 70 decibels). It can be used alone or in a vehicle and is suitable for various environments.

[0004] Compared with common sprayers, ultra-low volume sprayers are faster, more efficient, lighter, and more cost-effective in preventing and controlling plant, lawn, and crop pests and diseases.

[0005] Less water consumption: Ultra-low volume sprayers use stock solutions of pesticides, or only require very low dilutions, so they do not require a lot of water.

[0006] Less dosage: about 100 grams of liquid medicine is sprayed per mu, instead of tens of kilograms or even hundreds of kilograms. Therefore, it can greatly reduce labor intensity and save labor when used.

[0007] Even distribution of droplets: Ultra-low volume sprayers do not spray the liquid directly on the plants, but use the wind to disperse and drift the droplets with a diameter of only tens of microns, and then under the action of the "micro airflow" around the plants, the droplets are evenly distributed on the front, back and sides of the leaves and the whole plant. In this way, the killing rate of pests is higher than that of the pesticide diluted with a large amount of water, especially for some pests that have developed resistance to pesticides. Because the killing function of the pesticide stock solution is several times or even dozens of times higher than that after dilution with water.

[0008] Easy to use: When spraying with a handheld ultra-low volume sprayer, the head should always be kept about 1 meter above the plant. Since this type of sprayer omits the spray head, the liquid will flow out automatically when the bottle is put down. Therefore, before the motor is turned on, the bottle should be at the bottom and the head should be at the top. When spraying, the motor should be started first, and then the position of the bottle and the head should be changed so that the bottle is at the top, the bottle mouth is facing downward, and the bottle body is vertical to the ground, and the liquid will flow out automatically.

[0009] The invention patent with the existing announcement number CN 114287412 A and the publication date of 2022.04.08 discloses an electric sprayer, including a water tank with a liquid storage chamber, a nozzle is provided on the water tank, a base is provided at the bottom of the water tank, a pump body is provided on the base, a water inlet pipe and a water outlet pipe are provided on the pump body, one end of the water inlet pipe extends to the bottom of the liquid storage chamber, the end of the water outlet pipe extends to communicate with the nozzle, the pump body is used to absorb water from the water suction pipe and discharge the water from the water outlet pipe, and also includes a guide device, a rotating rod and a stirring blade, the rotating rod is rotatably connected in the liquid storage chamber, the stirring blade is fixed on the rotating rod and used to stir the pesticide, a plurality of driving plates are fixed on the rotating rod along the circumferential direction, the guide device is movably connected in the liquid storage chamber, and the guide device is located Between the nozzle and the water outlet pipe, the guide device is also located between the water outlet pipe and a plurality of driving plates. The guide device is used to change the direction of the water flow coming out of the water outlet pipe. When the water flow direction is toward one side of the nozzle, the nozzle is connected to the water outlet pipe through the guide device. When the water flow direction is toward one side of the driving plate, the water flow impacts the driving plate and drives the rotating rod to rotate. The invention patent sets the guide device. When the water flow acts on the nozzle, the water flow is ejected through the nozzle. When the water flow acts on the driving plate, the water flow can push the driving plate to drive the rotating rod to rotate, thereby driving the stirring blade to further mix the water and pesticide in the water tank. The operator no longer needs to manually shake the box to mix the pesticide, which can facilitate the mixing of the pesticide in the water tank.

[0010] However, there are at least two deficiencies in this invention patent: 1. During the entire operation process, the sprayer is fixed to the worker through a shoulder strap, and the weight of the entire sprayer is concentrated on the worker. This consumes a lot of physical energy during the operation process, and the worker needs to take a rest regularly, which indirectly reduces the work efficiency;

[0011] 2. The power for atomizing the liquid medicine in the spraying process is mainly provided by the pump body. However, in this invention, the pump body is arranged at the bottom of the water tank. When the pump body transports the liquid medicine in the water tank to the shower head through the pipeline for spraying, the liquid medicine will consume part of the power after flowing a certain distance in the pipeline. If the transportation distance is long, the atomization quality of the shower head cannot be guaranteed. At this time, the liquid medicine will flow directly down the shower head, resulting in a waste of liquid medicine.

[0012] Therefore, the utility model proposes a push-pull type ultra-low volume sprayer, which is used to solve the above technical problems, thereby reducing the labor intensity of the staff, improving the atomization quality of the sprayer and reducing the waste of liquid medicine. Utility Model Content

[0013] In view of the above technical problems, the utility model provides a push-pull ultra-low capacity sprayer, which is used to solve the problems of existing sprayers causing serious physical exertion on workers during operation, high labor intensity, large energy consumption during liquid medicine delivery, insufficient atomization power resulting in high waste and low atomization quality.

[0014] The above technical objectives of the utility model are achieved through the following technical solutions:

[0015] The push-pull type ultra-low volume sprayer comprises a box body, characterized in that: a support plate is arranged in parallel at the bottom of the box body, an axle is arranged between the support plates, wheels are rotatably arranged at both ends of the axle, and insertion cavities are symmetrically arranged on both sides of the box body, and a traction handle is detachably installed in the insertion cavity;

[0016] A liquid outlet pipe is provided in the box body, the other end of the liquid outlet pipe is connected to a spray gun, one end of the spray gun is provided with a motor, and the output end of the motor is provided with a fan;

[0017] An air return pipe is also arranged in the spray gun, and the other end of the air return pipe is communicated with the box body.

[0018] Furthermore, the box body also includes a top cover, a drug adding port is provided on the top cover, a pressure device is provided in the drug adding port, and the pressure device provides compensation for the pressure of the motor in the box body.

[0019] Furthermore, a bracket is provided on one side of the box body, a connection box is provided on the bracket, a battery is provided in the connection box, and the battery is connected to the motor by a cable.

[0020] Furthermore, the box is provided with an escape opening at the position of the wheel.

[0021] Furthermore, a handle is provided on the spray gun, a flexible sleeve is provided between the handle and the connection box, and the liquid outlet pipe, the return air pipe and the cable are connected to the spray gun through the flexible sleeve.

[0022] Furthermore, the connection box is provided with a switch for controlling the connection and disconnection of the battery and the motor and a display screen for displaying the battery power.

[0023] In summary, the beneficial technical effects of the utility model are:

[0024] (1) The traction handle and wheels enable the workers to move the entire sprayer by pushing and pulling during mobile operations, so that the weight of the sprayer is concentrated on the wheels. This can replace the original carrying method, thereby reducing the body load of the workers, greatly saving physical strength, and enabling long-term continuous operations, thereby improving work efficiency. At the same time, a motor with a fan is provided on the spray gun. When the motor is working, it can press a part of the wind force into the box through the return air duct to achieve the purpose of pressure. Under the action of pressure, the liquid medicine reaches the spray gun through the liquid outlet pipe. When the liquid medicine is sprayed out, the fan pressurizes the liquid medicine for a second time, so that the spray gun can atomize the liquid medicine more strongly and thoroughly, thereby ensuring that the liquid medicine can be fully atomized and reducing the waste caused by insufficient atomization.

[0025] (2) The battery attached to the box can provide power for the motor, eliminating the problem of temporary wiring on site, making the operation more flexible and convenient.

[0026] (3) When the motor and the return air duct do not pressurize the box enough, the pressure device can be used for manual compensation.

[0027] (4) The flexible sleeve can be used to gather the liquid outlet pipe, return air pipe and cable, avoiding damage caused by scattered connections and improving the integrity of the equipment.

[0028] (5) The avoidance opening can reduce the width of the entire sprayer, making it more convenient to carry and store. BRIEF DESCRIPTION OF THE DRAWINGS

[0029] Figure 1 It is a schematic diagram of the overall structure of the utility model;

[0030] Figure 2 It is a structural schematic diagram of the utility model from another angle;

[0031] Figure 3 is a schematic diagram of the inside of the adapter box;

[0032] Figure 4 It is a schematic diagram of the internal structure of the spray gun.

[0033] Figure numerals: 1. box body; 2. axle; 3. wheel; 4. insertion cavity; 5. traction handle; 6. spray gun; 7. motor; 8. fan; 9. liquid outlet pipe; 10. return air pipe; 11. connection box; 12. battery; 13. cable; 14. top cover; 15. dosing port; 16. pressure device; 17. pressure gauge; 18. avoidance port; 19. handle; 20. bracket; 21. flexible sleeve; 22. switch; 23. display screen. DETAILED DESCRIPTION

[0034] The present invention will be described clearly and completely below in conjunction with the embodiments.

[0035] It should be noted that all directional indications in the embodiments of the present invention (such as up, down, left, right, front, back...) are only used to explain the relative position relationship, movement status, etc. between the components under a certain specific posture (as shown in the accompanying drawings). If the specific posture changes, the directional indication will also change accordingly.

[0036] In the description of the embodiments, unless otherwise clearly specified and limited, the terms "disposed", "connected" and the like should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection, or an electrical connection; it can be a direct connection, or it can be connected through an intermediate medium, or it can be a communication between two components. For ordinary technicians in this field, the specific meanings of the above terms in the present utility model can be understood according to specific circumstances.

[0037] See attached Figure 1-4 The push-pull ultra-low volume sprayer shown in the figure comprises a box body 1, two support plates are arranged in parallel at the bottom of the box body 1, an axle 2 is passed between the two support plates, wheels 3 are rotatably arranged at both ends of the axle 2, and insertion chambers 4 are arranged on both sides of the box body 1 and above the wheels 3, and a traction handle 5 is fixed in the insertion chamber 4 by bolts. During operation, the staff can pull the entire box body 1 to move by the traction handle 5 in conjunction with the wheels 3 without carrying it, thereby transferring the weight of the entire box body 1 to the two wheels 3, thereby freeing up manpower and reducing the physical load of the staff. The staff only needs to exert a small amount of force to realize the movement of the box body 1, which greatly saves physical strength and ensures continuous operation without rest, thereby improving work efficiency;

[0038] A top cover 14 is buckled on the top of the box body 1, and a dosing port 15 for filling the liquid medicine is provided on the top cover 14. The box body 1 is provided with a liquid outlet pipe 9 through the top cover 14. One end of the liquid outlet pipe 9 extends to the bottom of the box body 1 and is used to guide the liquid medicine out under pressure. The other end of the liquid outlet pipe 9 is connected to a spray gun 6. The spray gun 6 is provided with a handle 19. The handle 19 is a cavity structure. The liquid outlet pipe 9 reaches the end of the spray gun 6 through the handle 19. A motor 7 is installed at one end of the spray gun 6. The motor 7 adopts a DC motor 7 with a working voltage of 24V. A fan 8 is provided at the output end of the motor 7. At the same time, a return air duct 10 is also provided in the handle 19. When the motor 7 drives the fan 8 to rotate to generate wind, the wind The force cannot all flow out from the spray gun 6, so the return air duct 10 can introduce part of the wind force from the fan 8 into the box body 1 to achieve the purpose of pressurizing the box body 1. When in use, the fan 8 is driven to rotate by the fan, and part of the wind force is introduced into the box body 1 through the return air duct 10 for pressurization. At this time, the liquid medicine in the box body 1 enters the liquid outlet pipe 9 under the action of pressure and reaches the spray gun 6. Then the fan 8 performs secondary pressurization on the liquid medicine to increase the speed of outward injection, thereby improving the quality and efficiency of atomization. By adding a motor 7 and a fan 8 at one end of the spray gun 6, the liquid medicine can be supplemented in energy, avoiding waste caused by insufficient energy when reaching the end of the spray gun 6;

[0039] At the same time, a bracket 20 is provided on one side of the box body 1, and a connection box 11 is installed on the bracket 20 by bolts. A mounting cavity is provided in the connection box 11, and a battery 12 is placed in the mounting cavity. The battery 12 is connected to the motor 7 by a cable 13. The battery 12 provides power to the motor 7, which broadens the use range of the sprayer and can be used in an environment without an external power supply. At the same time, it also avoids the trouble of temporarily pulling the cable 13 on site.

[0040] At the same time, in order to improve the integrity of the entire sprayer and avoid the cables 13, liquid outlet pipe 9, and return air pipe 10 being messy, a flexible sleeve 21 is provided between the connection box 11 and the handle 19 of the spray gun 6. When in use, the liquid outlet pipe 9 and the return air pipe 10 are led out of the box 1 and then pass through the connection box 11, and then the liquid outlet pipe 9, the return air pipe 10, and the cable 13 are gathered into the flexible sleeve 21 and enter the spray gun 6.

[0041] At the same time, in order to prevent the problem of insufficient energy when simply relying on the motor 7 to press the box body 1, a pressing device 16 is installed on the dosing port 15. The pressing device 16 is actually an air pump, which is also a device that can be purchased on the market. When the motor 7 does not press the box body 1 enough, the pressing device 16 can be used to manually compensate the pressure of the box body 1.

[0042] At the same time, in order to facilitate understanding of the pressure in the box body 1, a pressure gauge 17 is provided on the box body 1. During operation, the pressure gauge 17 can be used to know whether the pressure applied by the motor 7 to the box body 1 is sufficient, so that the pressure device 16 can be used to compensate in time to reduce the load of the motor 7;

[0043] At the same time, in order to conveniently control the start and stop of the motor 7 and observe the power of the battery 12, a switch 22 for controlling the motor 7 and a display screen 23 for displaying the power are respectively provided on the connection box 11, and the switch 22 and the display screen 23 are respectively connected to the battery 12.

[0044] When in use, first, the medicine liquid is added into the box body 1 through the medicine adding port 15, and then the whole box body 1 is pulled to move by the traction handle 5. This method can replace the original back-carrying method, and can transfer the load of the sprayer on the staff to the wheels 3, so that the staff can be liberated and physical strength can be saved. When working, the motor 7 is turned on by the switch 22 on the connecting box 11. At this time, the motor 7 drives the fan 8 and transmits part of the wind force into the box body 1 through the return air duct 10 for pressure. When the pressure in the box 1 is sufficient, the medicine will be pressed into the liquid outlet pipe 9 and reach the spray gun 6. At this time, the spray gun 6 uses the fan 8 to pressurize the medicine liquid for the second time and realizes atomization and spraying under the action of the nozzle.

[0045] The above description is only a preferred specific implementation method of the present utility model, and does not limit the protection scope of the present utility model. Therefore, any equivalent changes made based on the structure, shape, and principle of the present utility model should be included in the protection scope of the present utility model.

Claims

1. A push-pull type ultra-low volume sprayer, comprising a housing (1), characterized in that: The bottom of the box (1) is provided with support plates in parallel, an axle (2) is provided between the support plates, wheels (3) are rotatably provided at both ends of the axle (2), and insertion cavities (4) are symmetrically provided on both sides of the box (1), and a traction handle (5) is detachably installed in the insertion cavity (4); A liquid outlet pipe (9) is provided in the box body (1), the other end of the liquid outlet pipe (9) is connected to a spray gun (6), one end of the spray gun (6) is provided with a motor (7), and the output end of the motor (7) is provided with a fan (8); The spray gun (6) is also provided with a return air pipe (10), and the other end of the return air pipe (10) is connected to the box (1).

2. The push-pull type ultra-low volume sprayer according to claim 1, characterized in that: The box body (1) further comprises a top cover (14), a drug adding port (15) is provided on the top cover (14), a pressure device (16) is provided inside the drug adding port (15), and the pressure device (16) provides compensation for the pressure of the motor (7) inside the box body (1).

3. The push-pull type ultra-low volume sprayer according to claim 1, characterized in that: A bracket (20) is provided on one side of the box body (1), a connection box (11) is provided on the bracket (20), a storage battery (12) is provided in the connection box (11), and the storage battery (12) and the motor (7) are connected by a cable (13).

4. The push-pull type ultra-low volume sprayer according to claim 1, characterized in that: The box body (1) is provided with an escape opening (18) at the position of the wheel (3).

5. The push-pull type ultra-low volume sprayer according to claim 1, characterized in that: The spray gun (6) is provided with a handle (19), a flexible sleeve (21) is provided between the handle (19) and the connection box (11), and the liquid outlet pipe (9), the return air pipe (10), and the cable (13) are connected to the spray gun (6) through the flexible sleeve (21).

6. The push-pull type ultra-low volume sprayer according to claim 3, characterized in that: The connection box (11) is provided with a switch (22) for controlling the connection and disconnection of the storage battery (12) and the motor (7) and a display screen (23) for displaying the power level of the storage battery (12).

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