Accurate spraying equipment for biological prevention and control agent for forest diseases and insect pests

Abstract

The invention relates to the technical field of pest control, in particular to forest pest biological control agent accurate spraying equipment which comprises a backpack, a jet is detachably mounted on the rear side of the upper portion of the backpack, an agent storage tank is detachably mounted on the lower portion of the backpack, and a connecting assembly is arranged at the output end of the jet. The end, away from the air jet, of the connecting assembly is connected with an air jet pipe, a sleeve is installed in the end, close to the connecting assembly, of the air jet pipe, and a plurality of necks are formed in the side wall of the sleeve at equal angles. An ultrasonic generator is installed at the end, away from the connecting assembly, of the sleeve. Through the technical means of comfort design, multi-mode spraying, power enhancement, fine atomization, range regulation and control and the like, the comprehensive effects of high spraying efficiency, good atomization effect, wide coverage range and flexible operation are achieved, the practicability and reliability of spraying operation are integrally improved, and the high application and popularization value is achieved.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of pest control, and in particular to a precision spraying device for biological control of pests in forest areas. BACKGROUND

[0002] During the growth of trees in forest areas, they are easily attacked by various pests, which not only affects the appearance of the trees, but also can cause poor growth or even death of the trees. Traditional pest control methods mostly use chemical spraying, which can control pests to some extent, but the use of chemical agents can pollute the environment and also harm beneficial organisms. Biological control, as an environmentally friendly and sustainable control method, is gradually gaining attention.

[0003] However, due to the rugged terrain of most forestry planting areas, such as mountains, large intelligent spraying equipment cannot be used in these areas. Therefore, in the control of forestry pests, artificial spraying is still used. However, based on the actual spraying process, most existing backpack spraying devices use a spraying method that combines pumping and nozzles. Although this method can meet the basic operational requirements in small-scale, point-to-point spraying, it has problems such as insufficient atomization of the pesticide solution, large droplet particles, and uneven distribution, which leads to insufficient coverage and reduced efficacy. In addition, due to the limited jet thrust, the pesticide solution is difficult to penetrate into the interior of the work area, which can easily form a dead zone and affect the control effect. Furthermore, the existing devices produce a lot of vibration and noise during operation, which can cause fatigue in the operator, thereby reducing the comfort and continuity of the operation. Therefore, the existing spraying equipment still has many limitations in practical application. SUMMARY

[0004] The present application aims to solve the problems in the prior art and provides a precision spraying device for biological control of pests in forest areas.

[0005] To achieve the above-mentioned purpose, the present application adopts the following technical solutions:

[0006] The precision spraying device for biological control of pests in forest areas comprises a backpack, a jet engine detachably mounted on the upper rear side of the backpack, a pesticide storage tank detachably mounted on the lower side of the backpack, a connecting assembly provided at the output end of the jet engine, a jet pipe connected to the end of the connecting assembly away from the jet engine, a sleeve mounted inside the end of the jet pipe close to the connecting assembly, and a plurality of necks provided at equal angles on the side wall of the sleeve.

[0007] The end of the sleeve far from the connecting assembly is provided with an ultrasonic generator, the base part of the ultrasonic generator is located in the sleeve, the working end part is located outside the sleeve, the working end of the ultrasonic generator is connected with a main vibration rod, the end of the main vibration rod far from the ultrasonic generator is connected with a movable interface, the end of the movable interface far from the main vibration rod is connected with a secondary vibration rod, the end of the secondary vibration rod far from the movable interface is connected with a spraying mechanism installed in the inside of the end of the jet pipe.

[0008] The jet pipe is provided with a control assembly for controlling the operation of the whole device.

[0009] Preferably, the backpack is provided with a damper at the connection with the jet and the medicine storage tank.

[0010] Preferably, the connecting assembly comprises a communication pipe connected with the output end of the jet, the end of the communication pipe far from the jet is connected with an extension pipe, and the end of the extension pipe far from the communication pipe is connected with the jet pipe.

[0011] Preferably, the end of the sleeve close to the extension pipe is detachably provided with an electric air inlet fan, and the end of the sleeve close to the electric air inlet fan is fixedly provided with a flow concentrator.

[0012] Preferably, the main vibration rod is composed of amplification heads and energy concentration sections connected alternately, and the energy concentration sections are made of titanium alloy material.

[0013] Preferably, the spraying mechanism comprises a liquid storage cavity fixedly installed in the inside of the end of the jet pipe, the secondary vibration rod is connected with the liquid storage cavity, the end of the liquid storage cavity far from the secondary vibration rod is connected with an injector, the water outlet end of the injector is provided with an adjusting mechanism, the input end of the liquid storage cavity is connected with a medicine liquid pipe, the end of the medicine liquid pipe far from the liquid storage cavity is communicated with the inside of the medicine storage tank, and the medicine liquid pipe is provided with a control valve.

[0014] Preferably, the adjusting mechanism comprises a fixed plate fixedly installed in the end of the jet pipe, a movable plate is installed in the inside of the fixed plate, the movable plate is designed in a horn shape, the water outlet end of the injector is located in the movable plate, and a gas bag is arranged between the movable plate and the fixed plate, and one side of the gas bag is provided with a gas conveying assembly.

[0015] Preferably, the gas conveying assembly comprises a gas guide pipe connected with the gas bag, the end of the gas guide pipe far from the gas bag is communicated with the inside of the sleeve, and the gas guide pipe is provided with an electric control valve.

[0016] Preferably, the jet pipe is fixedly provided with a fixer for limiting the medicine liquid pipe.

[0017] Preferably, the control assembly comprises a control handle fixedly installed on a section of the jet pipe, and a plurality of control buttons are arranged on the control handle.

[0018] Compared with the prior art, the present application has the advantages of:

[0019] 1、The present application sets a shock absorber at the connection between the backpack and the jet and the medicine storage tank, effectively reduces the vibration during operation, improves the wearing comfort, and at the same time supports two modes of small-range point-to-point spraying and large-range spraying, wherein the point-to-point mode does not need the help of the jet, is light and flexible, and the large-range mode realizes the effect of wide spraying range and strong thrust through the cooperation of the jet and the ultrasonic generator, which can meet different operation requirements.

[0020] 2、The high-speed airflow generated by the jet forms resonance after the action of the flow collector and the sleeve, which not only reduces the noise of the ultrasonic generator, but also superimposes the coherent wave to strengthen the vibration energy, and the main vibration rod is designed in combination of the energy gathering section and the amplification head, which gathers energy in the energy gathering section and releases it at the amplification head, uses the turbulent flow and shear effect to improve the coupling efficiency of airflow and sound energy, makes the jet power more stable and continuous, and ensures the reliability of large-range spraying.

[0021] 3、The high-frequency cavitation bubbles generated by the insertion of the auxiliary vibration rod into the liquid storage cavity make the liquid medicine be broken into micron-sized droplets to realize more uniform and delicate atomization, and the spraying coverage is wider under the carrying of high-speed airflow, and the auxiliary vibration rod can also strip the accumulated particulate matter at the jet outlet through mechanical action to avoid clogging of the jet orifice and maintain the continuity and stability of the atomization process.

[0022] 4、The present application adjusts the jet angle by driving the air bag to swell and press the movable plate through the electric control valve, realizes the reduction of the spraying range, and makes the operator can flexibly switch the spraying mode according to the operation scene, which can not only cover a large area but also concentrate on small-range targets, enhances the applicability and flexibility of the device.

[0023] In summary, the present application realizes the comprehensive effect of high spraying efficiency, good atomization effect, wide coverage range and flexible operation through the technical means of comfort design, multi-mode spraying, power enhancement, fine atomization and range control, etc., which overall improves the practicality and reliability of the spraying operation, and has high application and popularization value. BRIEF DESCRIPTION OF DRAWINGS

[0024] Figure 1 The overall structure schematic diagram of the forest disease and pest biological control agent precision spraying equipment proposed by the present application.

[0025] Figure 2 The backpack and shock absorber structure schematic diagram of the forest disease and pest biological control agent precision spraying equipment proposed by the present application.

[0026] Figure 3The connecting pipe and telescopic pipe structure schematic diagram of the forest disease and pest biological control agent precision spraying equipment is provided.

[0027] Figure 4 The electric control valve and air guide pipe structure schematic diagram of the forest disease and pest biological control agent precision spraying equipment is provided.

[0028] Figure 5 The air injection pipe and control valve structure schematic diagram of the forest disease and pest biological control agent precision spraying equipment is provided.

[0029] Figure 6 The sleeve and neck structure schematic diagram of the forest disease and pest biological control agent precision spraying equipment is provided.

[0030] Figure 7 The air injection pipe half-section structure schematic diagram of the forest disease and pest biological control agent precision spraying equipment is provided.

[0031] In the figure: 1 air injector, 2 backpack, 3 shock absorber, 4 medicine storage tank, 5 medicine liquid pipe, 6 connecting pipe, 7 telescopic pipe, 8 fixer, 9 control handle, 10 control valve, 11 air injection pipe, 12 electric control valve, 13 air guide pipe, 14 fixed plate, 15 air bag, 16 movable plate, 17 injector, 18 sleeve, 19 neck, 20 electric air inlet fan, 21 flow concentrator, 22 ultrasonic generator, 23 amplification head, 24 energy concentration section, 25 movable interface, 26 auxiliary vibration rod, 27 liquid storage cavity. DETAILED DESCRIPTION

[0032] The technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present application. Obviously, the described embodiments are only part of the embodiments of the present application, not all embodiments.

[0033] REFERENCE Figures 1 to 7The application discloses a forest area pest biological control agent precision spraying equipment, which comprises a backpack 2, a jet 1 detachably mounted above the rear side of the backpack 2, a storage tank 4 detachably mounted below the backpack 2, a damper 3 mounted at the connection position of the backpack 2, the jet 1 and the storage tank 4, a communication pipe 6 connected to the output end of the jet 1, an extension pipe 7 connected to the end of the communication pipe 6 away from the jet 1, a spray pipe 11 connected to the end of the extension pipe 7 away from the communication pipe 6, a fixed plate 14 fixedly installed at the end of the spray pipe 11, a movable plate 16 installed in the inside of the fixed plate 14, a gas bag 15 arranged between the fixed plate 14 and the movable plate 16, a sleeve 18 arranged in the inside of the spray pipe 11, a motor-driven air inlet fan 20 detachably mounted at the end of the sleeve 18 close to the extension pipe 7, a plurality of necks 19 arranged at the end of the sleeve 18 away from the motor-driven air inlet fan 20, a flow concentrator 21 fixedly installed at the end of the sleeve 18 close to the motor-driven air inlet fan 20, and an ultrasonic generator 22 installed at the other end of the sleeve 18.

[0034] The inside of the end of the spray pipe 11 close to the extension pipe 7 is provided with the sleeve 18, the end of the sleeve 18 close to the extension pipe 7 is detachably provided with the motor-driven air inlet fan 20, the motor-driven air inlet fan 20 can further suck the high-pressure airflow generated by the jet 1 into the sleeve 18, a plurality of necks 19 are arranged at the end of the sleeve 18 away from the motor-driven air inlet fan 20 at equal angles and are in communication with the inside of the sleeve 18, the end of the sleeve 18 close to the motor-driven air inlet fan 20 is fixedly provided with the flow concentrator 21, the other end of the sleeve 18 is provided with the ultrasonic generator 22, the base part of the ultrasonic generator 22 is located in the sleeve 18, and the working end part is located outside the sleeve 18, the flow concentrator 21 and the necks 19 of the sleeve 18 form an internal structure similar to a Helmholtz resonator, which can not only absorb the noise generated by the ultrasonic generator 22 during work, but also reduce the decibel of the equipment during work, and the airflow resonance in the inside of the sleeve 18 cooperates with the superimposition of the ultrasonic waves generated by the ultrasonic generator 22, thereby improving the vibration effect of the ultrasonic waves generated by the ultrasonic generator 22.

[0035] The working end of the ultrasonic generator 22 is connected with a main vibration rod, which is composed of amplification heads 23 and energy gathering segments 24 connected alternately, the energy gathering segments 24 gather vibration energy by small diameter, and the amplification heads 23 release vibration energy by sudden change of diameter, so that the effect of ultrasonic vibration is improved, the energy gathering segments 24 are made of titanium alloy material, the end of the main vibration rod away from the ultrasonic generator 22 is connected with a movable interface 25, the end of the movable interface 25 away from the main vibration rod is connected with a secondary vibration rod 26, the end of the secondary vibration rod 26 away from the movable interface 25 is connected with a liquid storage cavity 27 fixedly installed in the inner end of the air jet pipe 11, the end of the liquid storage cavity 27 away from the secondary vibration rod 26 is connected with the sprayer 17, the water outlet of the sprayer 17 is located in the movable plate 16, the input end of the liquid storage cavity 27 is connected with the medicine liquid pipe 5, the end of the medicine liquid pipe 5 away from the liquid storage cavity 27 is communicated with the inside of the medicine storage tank 4, the control valve 10 is installed on the medicine liquid pipe 5, the medicine in the medicine storage tank 4 can be delivered to the liquid storage cavity 27 through the medicine liquid pipe 5, and then sprayed by the sprayer 17, the fixer 8 is fixedly installed on the air jet pipe 11, and the fixer 8 is used for limiting the medicine liquid pipe 5.

[0036] The control handle 9 is fixedly installed on the middle section of the air jet pipe 11, a plurality of control buttons are arranged on the control handle 9, and the control buttons are used for controlling the operation of the whole device.

[0037] In use, first, the medicine to be sprayed is added into the medicine storage tank 4, the operator carries the whole device on the back through the backpack 2, the connection positions of the backpack 2, the air sprayer 1 and the medicine storage tank 4 are all provided with the shock absorber 3, so that the vibration generated when the operator works and the air sprayer 1 works is reduced, and the comfort of the operator is improved, before spraying, the control valve 10 at the front end of the air jet pipe 11 is opened, the control buttons on the control handle 9 are pressed, the medicine in the medicine storage tank 4 is pumped into the liquid storage cavity 27 connected with the sprayer 17 through the medicine liquid pipe 5 by the built-in pump, and the sprayer 17 starts to work to spray the medicine, and this mode is suitable for small-range and point-to-point medicine spraying, and the air sprayer 1 is not needed to assist.

[0038] When spraying, the operator holds the control handle 9 and lifts the air jet pipe 11, the air sprayer 1 is connected to the telescopic pipe 7 through the communication pipe 6, and the telescopic pipe 7 is connected to the air jet pipe 11, so that the telescopic pipe 7 can adapt to the movement of the air jet pipe 11 by itself, and the air jet pipe 11 can be aligned with the spraying position to accurately spray.

[0039] When a large range, large dose and strong propellant force is required for deep spraying, press the control button on the control handle 9 to start the air jet 1 at the back of the backpack 2 and the ultrasonic generator 22 inside the air jet pipe 11. At this time, the air jet 1, the ultrasonic generator 22 and the electric air inlet fan 20 start to work. The high-pressure airflow generated by the air jet 1 enters the sleeve 18 through the suction of the electric air inlet fan 20, is focused by the concentrator 21, is blown to the tail of the ultrasonic generator 22 to cool it, and then is sprayed from the neck 19. After passing through the intermediate amplification head 23, the energy concentration section 24 and the auxiliary vibration rod 26, the airflow is sprayed together with the injector 17 to achieve the spraying effect of a large range, a large dose and an improved spraying force. The movable interface 25 connects the main vibration rod and the auxiliary vibration rod 26, and the auxiliary vibration rod 26 is inserted into the liquid storage cavity 27. Such a design has the following advantages.

[0040] Firstly, the sleeve 18, the concentrator 21 and the neck 19 form an internal structure similar to a Helmholtz resonator, which can not only absorb the noise generated by the ultrasonic generator 22 during operation to reduce the decibel during equipment operation, but also form a gas flow resonance in the sleeve 18 to cooperate with the ultrasonic waves generated by the ultrasonic generator 22 to improve the vibration effect of the ultrasonic waves generated by the ultrasonic generator 22.

[0041] Secondly, the main vibration rod is composed of the energy concentration section 24 and the amplification head 23. The energy concentration section 24 is made of titanium alloy material, which can concentrate vibration energy with a small diameter. The diameter of the amplification head 23 suddenly changes to release vibration energy and improve the ultrasonic vibration effect. When high-speed gas flows through the stepped surface, the energy concentration section 24 and the amplification head 23 generate a turbulent boundary layer with an alternating structure of thick and thin, which strengthens the acoustic resonance and acoustic flow shear effect, promotes efficient coupling of gas molecules and vibration energy, reduces energy loss, and ensures more stable spraying power. The stepped section design disperses the dynamic load of high-speed airflow, avoids vibration attenuation or deviation caused by airflow impact on a single cross section, maintains the consistency of ultrasonic output, and ensures the continuity and reliability of the spraying process.

[0042] Thirdly, the movable interface 25 connects the auxiliary vibration rod 26, which not only transmits vibration but also adjusts the angle of the auxiliary vibration rod 26 within a certain range to adapt to the angle requirements of spraying. The auxiliary vibration rod 26 is inserted into the liquid storage cavity 27 and contacts with the medicament. It can not only generate high-frequency cavitation bubbles in the liquid, release energy when the bubbles collapse to break the liquid into micron-sized droplets, improve the uniformity of atomization, but also carry these tiny droplets out by high-speed airflow to form finer and more widely sprayed mist. In addition, the mechanical action of the auxiliary vibration rod 26 can effectively strip the small particles that may accumulate at the outlet of the injector 17 to keep the spray hole unobstructed. Finally, the viscosity of the medicament is reduced to improve the spraying effect.

[0043] When it is necessary to reduce the spraying range, press the control button on the control handle 9 to start the electric control valve 12, so that a small amount of air enters the air bag 15 through the air guide pipe 13, the air bag 15 is installed on the fixed plate 14, the inflated air bag 15 will squeeze the front movable plate 16, so that the opening angle is reduced, thereby reducing the spraying range, and improving the practicability of the device.

[0044] The above is only the preferred specific embodiment of the present application, but the protection scope of the present application is not limited to this. Any person skilled in the art can make equivalent replacement or change according to the technical scheme and the inventive concept of the present application within the technical range disclosed by the present application, which should be covered in the protection scope of the present application.

Claims

1. A precise spraying device for biological pest control in forest areas, comprising a backpack (2), a jet (1) being detachably mounted on the upper rear side of the backpack (2), and a medicine storage tank (4) being detachably mounted on the lower side of the backpack (2), characterized in that: The output end of the jet (1) is provided with a connecting assembly, the end of the connecting assembly away from the jet (1) is connected to an air jet pipe (11), the end of the air jet pipe (11) close to the connecting assembly is internally provided with a sleeve (18), and the side wall of the sleeve (18) is provided with a plurality of neck openings (19) at equal angles; An ultrasonic generator (22) is installed at one end of the sleeve (18) away from the connecting assembly, the base portion of the ultrasonic generator (22) is located in the sleeve (18), and the working end portion is located outside the sleeve (18), the working end of the ultrasonic generator (22) is connected to a main vibrating rod, the end of the main vibrating rod away from the ultrasonic generator (22) is connected to a movable interface (25), the end of the movable interface (25) away from the main vibrating rod is connected to a secondary vibrating rod (26), and the end of the secondary vibrating rod (26) away from the movable interface (25) is connected to a spraying mechanism installed inside the end of the air jet pipe (11); A control component is installed on the air injection pipe (11) for controlling the operation of the entire device.

2. The precise spraying equipment for biological control of forest pests and diseases according to claim 1 is characterized in that: Shock absorbers (3) are installed at the connection points between the backpack (2), the jet (1) and the medicine storage tank (4).

3. The precise spraying equipment for biological control of forest pests and diseases according to claim 1 is characterized in that: The connecting assembly comprises a connecting pipe (6) connected to the output end of the jet (1); an end of the connecting pipe (6) away from the jet (1) is connected to a telescopic pipe (7); and an end of the telescopic pipe (7) away from the connecting pipe (6) is connected to the jet pipe (11).

4. The precise spraying equipment for biological control of forest pests and diseases according to claim 3 is characterized in that: An electric air intake fan (20) is detachably mounted on one end of the sleeve (18) close to the telescopic tube (7), and a focusing cover (21) is fixedly mounted on one end of the sleeve (18) close to the electric air intake fan (20).

5. The precise spraying equipment for biological control of forest pests and diseases according to claim 1 is characterized in that: The main vibrating rod is composed of alternately connected amplifying heads (23) and energy-gathering sections (24), and the energy-gathering sections (24) are made of titanium alloy material.

6. The precise spraying equipment for biological control of forest pests and diseases according to claim 1 is characterized in that: The spraying mechanism comprises a liquid storage chamber (27) fixedly mounted inside the end of the jet pipe (11), the auxiliary vibrating rod (26) is connected to the liquid storage chamber (27), one end of the liquid storage chamber (27) away from the auxiliary vibrating rod (26) is connected to an ejector (17), the water outlet end of the ejector (17) is provided with an adjusting mechanism, the input end of the liquid storage chamber (27) is connected to a medicine liquid pipe (5), one end of the medicine liquid pipe (5) away from the liquid storage chamber (27) is communicated with the interior of the medicine storage tank (4), and a control valve (10) is installed on the medicine liquid pipe (5).

7. The precise spraying equipment for biological control of forest pests and diseases according to claim 6 is characterized in that: The regulating mechanism comprises a fixed plate (14) fixedly mounted on the end of the jet pipe (11), a movable plate (16) being mounted inside the fixed plate (14), the movable plate (16) being trumpet-shaped, the water outlet end of the ejector (17) being located in the movable plate (16), and an air bag (15) being provided between the movable plate (16) and the fixed plate (14), and a gas delivery assembly being provided on one side of the air bag (15).

8. The precise spraying equipment for biological control of forest pests and diseases according to claim 7 is characterized in that: The gas delivery assembly comprises an airway tube (13) connected to the airbag (15), one end of the airway tube (13) away from the airbag (15) is communicated with the interior of the sleeve (18), and an electric control valve (12) is installed on the airway tube (13).

9. The precise spraying equipment for biological control of forest pests and diseases according to claim 7, characterized in that: A fixer (8) is fixedly mounted on the air injection tube (11), and the fixer (8) is used to limit the position of the liquid medicine tube (5).

10. The precise spraying equipment for biological control of forest pests and diseases according to claim 1, characterized in that: The control assembly comprises a control handle (9) fixedly mounted on a middle section of the air jet pipe (11), and a plurality of control buttons are provided on the control handle (9).

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