Vertical sprayer with adjustable spray angle

Abstract

A vertical sprayer with adjustable spray angle relates to the technical field of agricultural equipment. It includes a bottom frame, on which a spray mechanism that can rotate left and right is installed; the upper end of the air inlet is connected to a guide outlet air box, the upper port of the air inlet is sealed and connected to the lower port of the guide outlet air box, a coaxially arranged fan is installed in the air inlet, an inner guide box is arranged in the guide outlet air box, the inner guide box is a closed structure, a guide air cavity is formed between the inner guide box and the guide outlet air box, a plurality of lower guide plates are connected between the lower part of the inner guide box and the guide outlet air box, the upper end of the guide outlet air box is an air outlet, upper guide plates arranged at intervals are installed in the air outlet, and a nozzle assembly with a nozzle facing upward is installed at the air outlet. The fan power of the present invention is 15KW, and the air outlet is a flat structure, so that the sprayer has the advantages of long range, large width, and uniform liquid spraying, and is suitable for rapid liquid spraying of double-row trees with a height of 4 to 15m.

Description

Technical Field

[0001] The invention relates to the technical field of agricultural equipment, in particular to a vertical sprayer with adjustable spray angle. Background Art

[0002] In recent years, air-assisted sprayers have been widely used in grassland locust control and forest pest control. Air-assisted sprayers have the advantages of large spray width, good droplet uniformity, high pesticide use efficiency and less environmental constraints. Air-assisted sprayers use liquid pumps to pressurize the liquid and then atomize it into coarse droplets through the nozzles before spraying. The high-speed airflow generated by the fan further atomizes it into fine droplets and transports it to a long distance, thus achieving a misting effect.

[0003] However, the existing wind-assisted sprayers have obvious defects: 1) the range of the liquid medicine is limited and cannot be used for spraying liquid medicine on tall trees; 2) the sprayed liquid medicine has offset loss, resulting in waste of liquid medicine; 3) the spray direction is single and the width is small, and the spray angle cannot be adjusted. Summary of the invention

[0004] The purpose of the present invention is to provide a vertical sprayer with adjustable spray angle, which can effectively solve the problems in the background technology.

[0005] The technical solution to achieve the above object is: a vertical sprayer with adjustable spray angle, characterized in that: it includes a bottom frame, a spray mechanism that can rotate left and right is installed on the bottom frame, the spray mechanism includes a vertically arranged air inlet cylinder, the front and rear sides of the air inlet cylinder are connected with symmetrically arranged fixed shafts, the fixed shafts are connected to the air inlet cylinder through a connecting seat, the air inlet cylinder is rotatably installed on the bottom frame through the fixed shafts on the front and rear sides, and a driver that drives the fixed shaft on one side to rotate is also installed on the bottom frame;

[0006] The upper end of the air inlet cylinder is connected to a guide outlet air box which is open at both ends, the lower port of the air inlet cylinder is connected to the atmosphere, the upper port of the air inlet cylinder is sealed and connected to the lower port of the guide outlet air box, a coaxially arranged fan is installed in the air inlet cylinder, a ring air duct is formed between the fan and the air inlet cylinder, an inner guide box is arranged in the guide outlet air box, the inner guide box is a closed structure, a guide air cavity is formed between the inner guide box and the guide outlet air box, a plurality of spaced lower guide plates are connected between the lower part of the inner guide box and the guide outlet air box, the upper end of the guide outlet air box is an air outlet, upper guide plates arranged at intervals are installed in the air outlet, and a nozzle assembly with a nozzle facing upward is installed at the air outlet.

[0007] Furthermore, the fan includes a casing, end covers are installed at both ends of the casing, a rotating shaft is connected between the end covers through bearings, the lower end of the rotating shaft extends out of the end cover located below and is connected to a fan blade, and a driving shaft coaxially arranged with the fixed shaft is also provided in the casing, the fixed shaft away from the driver side is a hollow shaft, one end of the driving shaft located in the casing is transmission-connected with the rotating shaft, the other end of the driving shaft passes through the casing, the air inlet cylinder, and a connecting seat connected to the hollow fixed shaft in sequence, and then passes through the hollow fixed shaft, a bearing is installed between the driving shaft and the hollow fixed shaft, the protruding end of the driving shaft is connected to a power mechanism installed on the bottom frame, and the driving shaft and the casing, the air inlet cylinder, and the connecting seat are all sealed and rotatably assembled.

[0008] Furthermore, a plurality of guide vanes arranged at intervals are connected between the casing of the fan and the air inlet cylinder.

[0009] Furthermore, the guide vane is arranged to be inclined toward one side of the rotation direction of the fan blades.

[0010] Furthermore, the outlet air guide box and the inner air guide box are both fan-shaped structures, the lower ends of the outlet air guide box and the inner air guide box are both circular, and the upper end surface of the outlet air guide box is higher than the upper end surface of the inner air guide box;

[0011] The middle parts of the upper ends of the guide air box and the upper inner guide box are both horizontal planes, and the left and right sides are both inclined planes inclined downward and outward, so that the air outlet of the guide air box forms a middle air outlet located in the middle and blowing air upward, and side air outlets located on the left and right sides and blowing air to the left and right sides. The upper guide plates in the middle air outlet are arranged vertically, and the upper guide plates in the side air outlets are arranged inclined outwards.

[0012] Furthermore, the air outlet of the guide air box is a flat structure.

[0013] Furthermore, the nozzle assembly includes a liquid medicine input pipe connected to the outer wall of the air outlet of the guide air box, and a plurality of nozzles arranged at intervals are respectively arranged on both sides of the air outlet of the guide air box, and the nozzles are connected to the liquid medicine input pipes on the corresponding sides, and the liquid medicine input pipes are connected to the liquid medicine input interface;

[0014] The nozzles in the middle air outlet are arranged vertically upward, and the nozzles in the air outlets on the left and right sides are arranged obliquely outwardly and upwardly.

[0015] Furthermore, the air outlet jacket of the air guide box is provided with an air guide cover with a clearance fit, and the air guide cover is connected to the air guide box through screws arranged at intervals, and the screws on both sides of the air guide cover and the screws on both sides of the air guide box are locked by nuts respectively.

[0016] Beneficial effects of the present invention:

[0017] When the present invention is used, the liquid medicine input interface of the nozzle assembly is connected to the liquid medicine input pipe, and the fan is driven to rotate by the power mechanism. The wind blown by the fan passes through the annular air duct between the fan and the air inlet cylinder, the guide air cavity between the inner guide box and the guide outlet wind box to the air outlet, and then is output to the top and both sides under the guidance of the upper guide plate in the air outlet. The wind output from the air outlet is fully mixed with the medicine mist sprayed by the nozzle assembly in the effective space, and is further atomized and accelerated, and then evenly delivered upward to the branches and leaves of the trees on both sides and the top. The fan power of the present invention is 15KW, and the air outlet is a flat structure, so that the sprayer has the advantages of long range, large width, and uniform liquid medicine spraying, and is suitable for rapid liquid medicine spraying of double-row trees with a height of 4 to 15m.

[0018] The present invention provides an air guide cover at the air outlet, so that the airflow supplemented around the air outlet is output upward along the gap between the air guide cover and the guide outlet air box in the same direction as the airflow output by the guide outlet air box, thereby reducing the offset loss of the sprayed liquid and increasing the spraying height of the liquid.

[0019] The present invention can also be applied to the spraying of a single row of trees. When the single row of trees is sprayed, the spray mechanism is driven by a driver to rotate toward the spraying side so that the air outlet faces one side of the trees. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 It is a front view of the present invention;

[0021] Figure 2 is a side view of the present invention;

[0022] Figure 3 The side cross-sectional view of the present invention without the air guide cover;

[0023] Figure 4 It is a partial cross-sectional view of the present invention;

[0024] Figure 5 It is a top view of the inner guide box and the guide outlet air box in a coordinated state;

[0025] Figure 6 This is a top view of the guide box and the guide outlet air box in coordination. DETAILED DESCRIPTION

[0026] like Figure 1-6As shown, the present invention includes a bottom frame 1, on which a spray mechanism 13 that can rotate left and right is installed. The spray mechanism 13 includes a vertically arranged air inlet cylinder 2, and a symmetrically arranged fixed shaft 14 is connected to the upper middle part of the front and rear sides of the air inlet cylinder 2. The fixed shaft 14 is connected to the air inlet cylinder 2 through a connecting seat 15. The air inlet cylinder 2 is rotatably installed on the bottom frame 1 through the fixed shafts 14 on the front and rear sides. A driver 16 for driving the fixed shaft 14 on one side to rotate is also installed on the bottom frame 1. The driver 16 can be but is not limited to a hydraulic motor, and the fixed shaft 14 on the side away from the driver 16 is a hollow shaft.

[0027] The upper end of the air inlet tube 2 is connected to a guide outlet air box 3, the lower port of the air inlet tube 2 is connected to the atmosphere, the upper port of the air inlet tube 2 is sealedly connected to the lower port of the guide outlet air box 3, the guide outlet air box 3 and the air inlet tube 3 are connected to each other, and the upper end of the guide outlet air box 3 is an opening serving as an air outlet 4.

[0028] A coaxially arranged fan 5 is installed in the air inlet 2, and an annular air duct is formed between the fan 5 and the air inlet 2. The fan 5 includes a casing 5.1, and end covers 5.2 are installed at the upper and lower ends of the casing 5.1. A vertically arranged rotating shaft 5.4 is connected between the end covers 5.2 through bearings 5.3. The lower end of the rotating shaft 5.4 extends out of the end cover 5.2 located below and is connected to a fan blade 5.5. A driving shaft 5.6 coaxially arranged with the fixed shaft 14 is also provided in the casing 5.1. One end of the driving shaft 5.6 located in the casing 5.1 is connected to the rotating shaft 5.4 through a bevel gear 5.7. The driving shaft 5.6 The other end of the drive shaft 5.6 passes through the casing 5.1, the air inlet 2, the connecting seat 15 connected to the hollow fixed shaft 14 in sequence, and then passes through the hollow fixed shaft 14. A bearing 17 is installed between the drive shaft 5.6 and the hollow fixed shaft 14. The protruding end of the drive shaft 5.6 is installed and connected to a power mechanism (not shown in the figure) on the bottom frame 1. The drive shaft 5.6 is sealed and rotatably assembled with the casing 5.1 and the air inlet 2. The sealed and rotatably assembled method between the drive shaft 5.6 and the casing 5.1 and the air inlet 2 belongs to the existing well-known technology and will not be described in detail here. The power mechanism is driven by but not limited to a motor.

[0029] In some embodiments, to ensure that the wind blown out by the fan 5 can be evenly distributed upward, a plurality of guide vanes 5.9 arranged at intervals are connected between the air inlet 2 and the casing 5.1 of the fan 5, and the guide vanes 5.9 are arranged tilted toward the rotation direction of the fan blades of the fan 5.

[0030] An inner guide box 6 is arranged in the guide air box 3, and the inner guide box 6 is a closed structure. The guide air box 3 and the inner guide box 3 are both fan-shaped structures, and a guide air cavity 7 is formed between the inner guide box 6 and the guide air box 3. The lower ends of the guide air box 3 and the inner guide box 6 are both circular, and the lower end surfaces are flush. The upper end surface of the guide air box 3 is higher than the upper end surface of the inner guide box 6. A plurality of lower guide plates 8 that are spaced and vertically arranged are connected between the lower part of the inner guide box 6 and the guide air box 3. A plurality of upper guide plates 9 that are spaced and arranged are installed in the air outlet of the guide air box 3. The lower end of the upper guide plate 9 is provided with an opening groove that is clamped in the inner guide box 6, and the two side walls are sealed and connected to the inner wall of the guide air box 3.

[0031] The middle parts of the ends of the guide air box 3 and the inner guide box 6 are both horizontal planes, and both sides are inclined planes inclined outwards, so that the air outlet 4 of the guide air box 3 forms a middle air outlet 4.1 located in the middle and blowing air upwards, and side air outlets 4.2 located on the left and right sides and blowing air to the left and right sides. The upper guide plate 9 in the middle air outlet 4.1 is arranged vertically, and the upper guide plates 9 in the side air outlets 4.2 are arranged inclined outwards respectively. The inclination angle of the upper guide plate 9 in the side air outlet 4.2 is determined according to the air outlet volume demand on the left and right sides. When the air outlet volume demand on the left and right sides is large, the inclination angle of the upper guide plate 9 relative to the vertical center line of the guide air box 3 increases. When the air outlet volume demand on the left and right sides is small, the inclination angle of the upper guide plate 9 relative to the vertical center line of the guide air box 3 increases.

[0032] A nozzle assembly 10 with a nozzle facing upward is installed in the air outlet of the guide air box 3. The nozzle assembly 10 includes a liquid medicine input pipe 10.1 connected to the outer wall of the air outlet of the guide air box 3. A plurality of nozzles 10.2 arranged at intervals are respectively arranged on both sides of the air outlet of the guide air box 3. The nozzles 10.2 are connected to the liquid medicine input pipes 10.1 on the corresponding sides. The liquid medicine input pipes 10.1 are connected to a liquid medicine input interface (not shown in the figure). The nozzles 10.2 in the middle air outlet 4.1 are vertically upward, and the nozzles 10.2 in the side air outlets 4.2 are arranged to tilt outward and upward.

[0033] The air outlet 4 of the air guide box 3 is provided with an air guide cover 11 with a clearance fit. The air guide cover 11 is connected to the air guide box 3 through spaced screws 12. The screws 12 on both sides of the air guide cover 11 and the screws 12 on both sides of the air guide box 3 are locked by nuts 13 respectively.

[0034] When the present invention is working, it is hung on the walking traction mechanism, and the liquid medicine input interface of the nozzle assembly 10 is connected to the liquid medicine input pipe, and then the fan 5 is driven to rotate by the power mechanism. The wind blown by the fan 5 passes through the annular air duct between the fan 5 and the air inlet cylinder 2, the guide air cavity 7 between the inner guide box 6 and the guide outlet air box 3 to the air outlet 1.4, and then is output to the top and both sides under the guidance of the upper guide plate 9 in the air outlet 1.4. The wind output from the air outlet 1.4 is fully mixed with the medicine mist sprayed by the nozzle assembly 10 in the effective space, further atomized and accelerated, and then evenly delivered upward to the branches and leaves of trees above both sides and directly above.

[0035] The present invention can spray liquid medicine on double rows of trees on the left and right sides at the same time, and can also spray liquid medicine on a single row of trees. When spraying liquid medicine on a single row of trees, the driver 16 drives the spray mechanism 13 to rotate toward the spray side so that the air outlet faces one side of the trees.

Claims

1. A vertical sprayer with adjustable spray angle, characterized in that: The spray mechanism comprises a bottom frame, on which a spray mechanism that can rotate left and right is installed, the spray mechanism comprises a vertically arranged air inlet cylinder, the front and rear sides of the air inlet cylinder are connected with symmetrically arranged fixed shafts, the fixed shafts are connected to the air inlet cylinder through a connecting seat, the air inlet cylinder is rotatably installed on the bottom frame through the fixed shafts on the front and rear sides, and a driver that drives the fixed shaft on one side to rotate is also installed on the bottom frame; The upper end of the air inlet cylinder is connected to a guide air outlet box with openings at both upper and lower ends, the lower port of the air inlet cylinder is connected to the atmosphere, the upper port of the air inlet cylinder is sealed and connected to the lower port of the guide air outlet box, a coaxially arranged fan is installed in the air inlet cylinder, a ring air duct is formed between the fan and the air inlet cylinder, an inner guide box is arranged in the guide air outlet box, the inner guide box is a closed structure, a guide air cavity is formed between the inner guide box and the guide air outlet box, a plurality of spaced lower guide plates are connected between the lower part of the inner guide box and the guide air outlet box, the upper end of the guide air outlet box is an air outlet, upper guide plates spaced are installed in the air outlet, and a nozzle assembly with a nozzle facing upward is installed at the air outlet; The air outlet of the guide air box is sleeved with an air guide cover with a clearance fit on the outside, and the air guide cover is connected to the guide air box through screws arranged at intervals, and the screws on both sides of the air guide cover and the screws on both sides of the guide air box are locked by nuts respectively, so that the airflow supplemented around the air outlet is output upward along the gap between the air guide cover and the guide air box in the same direction as the airflow output from the guide air box; The fan includes a casing, end covers are installed at both ends of the casing, a rotating shaft is connected between the end covers through bearings, the lower end of the rotating shaft extends out of the end cover located below and is connected to a fan blade, a driving shaft coaxially arranged with the fixed shaft is also provided in the casing, the fixed shaft away from the driver side is a hollow shaft, one end of the driving shaft located in the casing is transmission-connected with the rotating shaft, the other end of the driving shaft passes through the casing, the air inlet cylinder, and the connecting seat connected to the hollow fixed shaft in sequence, and then passes through the hollow fixed shaft, a bearing is installed between the driving shaft and the hollow fixed shaft, the protruding end of the driving shaft is connected to a power mechanism installed on the bottom frame, and the driving shaft and the casing and the air inlet cylinder are all sealed and rotatably assembled.

2. A vertical sprayer with adjustable spray angle according to claim 1, characterized in that: A plurality of guide vanes arranged at intervals are connected between the casing of the fan and the air inlet cylinder.

3. A vertical sprayer with adjustable spray angle according to claim 2, characterized in that: The guide vane is arranged tilted toward one side of the rotation direction of the fan blade.

4. A vertical sprayer with adjustable spray angle according to claim 1, characterized in that: The lower ends of the outlet air box and the inner air box are both circular, and the upper end surface of the outlet air box is higher than the upper end surface of the inner air box; The middle parts of the upper ends of the guide air box and the inner guide box are both horizontal planes, and the left and right sides are both inclined planes inclined downward and outward, so that the air outlets of the guide air box form a middle air outlet located in the middle and blowing air upward, and side air outlets located on the left and right sides and blowing air to the left and right sides. The upper guide plates in the middle air outlet are arranged vertically, and the upper guide plates in the side air outlets are arranged to be inclined outwards.

5. A vertical sprayer with adjustable spray angle according to claim 1, characterized in that: The air outlet of the guide air outlet box is a flat structure.

6. A vertical sprayer with adjustable spray angle according to claim 4, characterized in that: The nozzle assembly includes a liquid medicine input pipe connected to the outer wall of the air outlet of the guide air box, and a plurality of nozzles arranged at intervals are respectively arranged on both sides of the air outlet of the guide air box, and the nozzles are connected to the liquid medicine input pipe on the corresponding side, and the liquid medicine input pipe is connected to the liquid medicine input interface; The nozzles in the central air outlet are vertically upward, and the nozzles in the side air outlets on the left and right sides are arranged to be inclined upward outwards.

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