Pesticide spraying device

Abstract

The utility model relates to the technical field of pesticide spraying, in particular to a pesticide spraying device which comprises a barrel body, straps are fixedly connected to the front side of the barrel body, a spraying pipe communicated with the interior of the barrel body is installed on the rear side of the barrel body, a flat plate is installed at the top of the barrel body, and a sealing cover is detachably connected to the top end of the flat plate. Through the arrangement of the pressurizing device, the first vertical plate, the second vertical plate, the crankshaft, the second connecting rod, the stirring blades, the telescopic cylinder, the handle, the third connecting rod, the positioning block and the first sliding rod, on one hand, the air pressure in the cylinder can be increased, and on the other hand, the pressure in the cylinder can be increased; on the other hand, a second connecting rod moves up and down to drive a crankshaft to rotate in a long circular hole and the inner side of a fixed seat, so that stirring blades stir the liquid medicine in the cylinder body, and the uniformity of the liquid medicine is ensured.

Description

Technical Field

[0001] This utility model relates to the field of spraying technology, specifically to a spraying device. Background Technology

[0002] A pesticide sprayer is an agricultural tool that disperses liquid pesticides and sprays them onto crops. In actual operation, many pesticides have a slow melting rate, and if they are not continuously stirred during the spraying process, sedimentation will occur. This will result in the concentration of the pesticide solution sprayed on the crops being too high or too low, causing pesticide damage or poor effect.

[0003] Currently, most commercially available backpack pesticide sprayers do not have a synchronous stirring function. A search revealed an existing patent: Agricultural Spraying Device with Stirring Function, publication number CN112889780A. Although it discloses a stirring function, the driving device of its stirring structure is relatively simple, and synchronous stirring cannot be achieved during spraying. Therefore, a spraying device is proposed to address the above problems. Summary of the Invention

[0004] The purpose of this invention is to provide a spraying device to solve the problem mentioned in the background art that existing devices cannot achieve synchronous stirring during the spraying process.

[0005] To achieve the above objectives, this utility model provides the following technical solution:

[0006] A spraying device includes a cylinder, a shoulder strap fixedly connected to the front side of the cylinder, a spray pipe communicating with the interior of the cylinder installed on the rear side of the cylinder, a flat plate installed on the top of the cylinder, a cap detachably connected to the top of the flat plate, a pressurizing device installed on the top of the cylinder on one side of the cap, a first vertical plate and a second vertical plate symmetrically arranged fixedly connected to the bottom of the flat plate, a crankshaft installed between the first vertical plate and the second vertical plate, a vertically arranged second connecting rod hinged to the top of the crankshaft, the top of the second connecting rod extending upward through the flat plate, a plurality of stirring blades fixedly connected to the outside of the crankshaft, a telescopic cylinder provided on the outside of the top of the second connecting rod, a handle hinged to the right side of the cylinder, a third connecting rod hinged to the handle near the side of the cylinder, a positioning block fixedly connected to the right side of the cylinder above the third connecting rod, a first sliding rod vertically slidably connected to the inside of the positioning block, the first sliding rod including a vertical part and a horizontal part, the bottom end of the vertical part of the first sliding rod hinged to the top of the third connecting rod, and one end of the horizontal part of the first sliding rod hinged to the top of the second connecting rod.

[0007] Preferably, the telescopic cylinder is fixedly connected to the top of the plate, and the horizontal part of the first sliding rod passes through the telescopic cylinder and is fixedly connected to the telescopic cylinder.

[0008] Preferably, the pressurizing device includes a cylinder fixedly connected inside the plate and penetrating the plate, a piston slidably and sealingly connected inside the cylinder, a first spring provided between the bottom end of the inner side of the cylinder and the bottom end of the piston, a first connecting rod fixedly connected to the top end of the piston, one-way valves installed inside the piston and at the bottom of the cylinder, and multiple filter screens penetrating the cylinder fixedly connected to the top end of the cylinder.

[0009] Preferably, the one-way valve located on the piston opens one-way into the cylinder, and the one-way valve located at the bottom of the cylinder opens one-way into the cylinder body, and the top end of the first connecting rod is fixedly connected to the horizontal part of the first slide rod.

[0010] Preferably, both the first and second vertical plates have vertically arranged elongated holes at their lower parts. Below the elongated holes, there are U-shaped blocks fixedly connected to the outer sides of the first and second vertical plates. A second sliding rod is installed inside the U-shaped block, passing downward and slidably connected to the U-shaped block. A pressure plate is fixedly connected to the top of the second sliding rod. A second spring is provided on the outer side of the second sliding rod. A limit plate is fixedly connected to the bottom of the second sliding rod. A fixing seat is fixedly connected to the top of the pressure plate.

[0011] Preferably, the crankshaft is inserted into the inner side of the elongated hole, and the crankshaft passes through the fixed seat and is rotatably connected to the fixed seat.

[0012] Compared with the prior art, the beneficial effects of this utility model are:

[0013] 1. In this utility model, by setting up a pressurizing device, a first vertical plate, a second vertical plate, a crankshaft, a second connecting rod, a stirring blade, a telescopic cylinder, a handle, a third connecting rod, a positioning block, and a first sliding rod, on the one hand, the air pressure inside the cylinder can be increased, thus providing a basis for the liquid medicine coming out of the nozzle to form a spray state. On the other hand, by moving the second connecting rod up and down, the crankshaft is driven to rotate inside the elongated hole and the fixed seat, so that the stirring blade stirs the liquid medicine inside the cylinder, thereby ensuring the uniformity of the liquid medicine.

[0014] 2. In this utility model, by using an elongated hole, a U-shaped block, a second sliding rod, a pressure plate, a second spring, a limiting plate, and a fixing seat, when the first spring ages and causes the crankshaft to continue moving downward, the crankshaft moves inside the elongated hole, and the fixing seat and the pressure plate bear downward pressure, causing the second spring to compress downward. The second sliding rod at the top of the limiting plate slides inside the U-shaped block, which can relieve the downward compressive force generated by the increased stroke, thereby achieving the purpose of protecting the crankshaft and the second connecting rod. Attached Figure Description

[0015] Figure 1 This is a schematic diagram of the overall left side structure of this utility model;

[0016] Figure 2 This is a schematic diagram of the overall right side structure of this utility model;

[0017] Figure 3 This is a schematic diagram of the flat plate connecting component of this utility model;

[0018] Figure 4 This utility model Figure 3 A schematic diagram of the structure at point A;

[0019] Figure 5 This is a schematic diagram of the cross-sectional structure of the telescopic cylinder of this utility model;

[0020] Figure 6 This is a schematic diagram of the first vertical plate connecting component of this utility model;

[0021] Figure 7 This is a schematic diagram of the cross-sectional structure of the cylinder of this utility model.

[0022] In the diagram: 1. Cylinder; 2. Shoulder strap; 3. Nozzle; 4. Flat plate; 5. Cover; 6. Pressurizing device; 61. Cylinder; 62. Piston; 63. First spring; 64. First connecting rod; 65. One-way valve; 66. Filter screen; 7. First vertical plate; 8. Second vertical plate; 9. Crankshaft; 10. Second connecting rod; 11. Stirring blade; 12. Telescopic cylinder; 13. Handle; 14. Third connecting rod; 15. Positioning block; 16. Vertical part; 17. Horizontal part; 18. First sliding rod; 19. Oblong hole; 20. U-shaped block; 21. Second sliding rod; 22. Pressure plate; 23. Second spring; 24. Limiting plate; 25. Fixing seat. Detailed Implementation

[0023] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0024] In the description of this utility model, it should be understood that the directional terms such as "front, back, up, down, left, right", "horizontal, vertical, horizontal" and "top, bottom" indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this utility model and simplifying the description. Unless otherwise stated, these directional terms do not indicate or imply that the device or element referred to must have a specific orientation or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation on the scope of protection of this utility model. The directional terms "inner" and "outer" refer to the inner and outer contours of each component itself.

[0025] Furthermore, it should be noted that the use of terms such as "first" and "second" to define components is merely for the purpose of distinguishing the corresponding components. Unless otherwise stated, the above terms have no special meaning and therefore cannot be construed as limiting the scope of protection of this utility model.

[0026] Please see Figure 1-7 This utility model provides a technical solution:

[0027] A spraying device includes a cylinder 1, a shoulder strap 2 fixedly connected to the front side of the cylinder 1, a spray pipe 3 communicating with the interior of the cylinder 1 installed on the rear side of the cylinder 1, a flat plate 4 installed on the top of the cylinder 1, a cap 5 detachably connected to the top of the flat plate 4, a pressurizing device 6 installed on the top of the cylinder 1 on one side of the cap 5, a first vertical plate 7 and a second vertical plate 8 symmetrically arranged fixedly connected to the bottom of the flat plate 4, a crankshaft 9 installed between the first vertical plate 7 and the second vertical plate 8, a vertically arranged second connecting rod 10 hinged to the top of the crankshaft 9, the top of the second connecting rod 10 extending upward through the flat plate 4, and multiple stirring blades 11 fixedly connected to the outside of the crankshaft 9. A telescopic cylinder 12 is provided on the outer side of the top. A handle 13 is hinged to the right side of the cylinder 1. A third connecting rod 14 is hinged to the side of the handle 13 near the cylinder 1. A positioning block 15 is fixedly connected to the right side of the cylinder 1 above the third connecting rod. A first sliding rod 18 is vertically slidably connected to the inner side of the positioning block 15. The first sliding rod 18 includes a vertical part 16 and a horizontal part 17. The bottom end of the vertical part 16 of the first sliding rod 18 is hinged to the top end of the third connecting rod 14. One end of the horizontal part 17 of the first sliding rod 18 is hinged to the top end of the second connecting rod 10. The telescopic cylinder 12 is fixedly connected to the top of the plate 4. The horizontal part 17 of the first sliding rod 18 passes through the telescopic cylinder 12 and is connected to the top of the plate 4. The telescopic cylinder 12 is fixedly connected. The pressurizing device 6 includes a cylinder 61 fixedly connected inside the plate 4 and penetrating the plate 4. A piston 62 is axially slidably and sealed inside the cylinder 61. A first spring 63 is provided between the bottom end of the inner side of the cylinder 61 and the bottom end of the piston 62. A first connecting rod 64 is fixedly connected to the top end of the piston 62. One-way valves 65 are installed inside the piston 62 and at the bottom of the cylinder 61. Multiple filter screens 66 penetrating the cylinder 61 are fixedly connected to the top end of the cylinder 61. The one-way valves 65 on the piston 62 open one-way into the cylinder 61, and the one-way valves 65 at the bottom of the cylinder 61 open one-way into the cylinder 1. The first connecting rod... The top of 64 is fixedly connected to the horizontal part 17 of the first slide rod 18. Through the pressure device 6, the first vertical plate 7, the second vertical plate 8, the crankshaft 9, the second connecting rod 10, the stirring blade 11, the telescopic cylinder 12, the handle 13, the third connecting rod 14, the positioning block 15 and the first slide rod 18, on the one hand, the air pressure inside the cylinder 1 can be increased, thus providing a basis for the liquid medicine coming out of the nozzle 3 to form a spray state. On the other hand, the second connecting rod 10 moves up and down to drive the crankshaft 9 to rotate inside the elongated hole 19 and the fixed seat 25, so that the stirring blade 11 stirs the liquid medicine inside the cylinder 1, thus ensuring the uniformity of the liquid medicine.

[0028] Both the first vertical plate 7 and the second vertical plate 8 have vertically arranged elongated holes 19 at their lower parts. Below the elongated holes 19 are U-shaped blocks 20 fixedly connected to the outer sides of the first vertical plate 7 and the second vertical plate 8. A second sliding rod 21 is installed inside the U-shaped block 20, passing downward and slidably connected to it. A pressure plate 22 is fixedly connected to the top of the second sliding rod 21. A second spring 23 is provided on the outer side of the second sliding rod 21. A limit plate 24 is fixedly connected to the bottom of the second sliding rod 21. A fixing seat 25 is fixedly connected to the top of the pressure plate 22. A crankshaft 9 is inserted inside the elongated holes 19 and passes through the fixing seat 25. 5. It is rotatably connected to the fixed seat 25. Through the provided elongated hole 19, U-shaped block 20, second slide rod 21, pressure plate 22, second spring 23, limiting plate 24 and fixed seat 25, when the first spring 63 ages and causes the crankshaft 9 to continue to move downward, the crankshaft 9 moves inside the elongated hole 19, the fixed seat 25 and the pressure plate 22 bear downward pressure, causing the second spring 23 to compress downward, and the second slide rod 21 at the top of the limiting plate 24 slides inside the U-shaped block 20, so as to relieve the downward extrusion force generated by the increased stroke, thereby achieving the purpose of protecting the crankshaft 9 and the second connecting rod 10.

[0029] Working process: When using this device, first open the cap 5 at the top of the plate 4, fill the diluted medicine into the cylinder 1, and then tighten the cap 5. When spraying, carry the cylinder 1 behind your back using the two shoulder straps 2, then hold the handle 13 with your left hand and the spray nozzle 3 with your right hand, and pull the handle 13 up and down. At this time, the vertical part 16 of the first sliding rod 18 can move downward inside the positioning block 15 through the third connecting rod 14. The horizontal part 17 of the first sliding rod 18 moves downward at the same time, which can drive the first connecting rod 64 and the second connecting rod 10 to move downward. The downward movement of the first connecting rod 64 drives the piston 62 to move downward, thereby forming compressed air in the cylinder 61. At the same time, the first spring 63 is pushed by the piston 6. 2. During the downward compression of piston 62, the one-way valve 65 on piston 62 closes while the one-way valve 65 on cylinder 61 opens, allowing air to enter cylinder 1 from cylinder 61, thus increasing the air pressure inside cylinder 1. When the first connecting rod 64 moves downward, the second connecting rod 10 also moves downward. The downward movement of the second connecting rod 10 drives the crankshaft 9 between the first vertical plate 7 and the second vertical plate 8 to rotate downward, compressing the telescopic cylinder 12. This causes the stirring blade 11 to stir the liquid medicine inside cylinder 1. When the first spring 63 is compressed to its limit, the pressure on handle 13 is released. Under the action of the first spring 63, piston 62 moves upward. At this time, the one-way valve on cylinder 61... When valve 65 is opened, the one-way valve 65 on piston 62 closes, and external gas enters cylinder 61 through filter screen 66. The design of pressurizing device 6 and its connecting components increases the air pressure inside cylinder 1, thus providing a basis for the liquid medicine coming out of nozzle 3 to form a spray state. On the other hand, the up-and-down movement of second connecting rod 10 drives crankshaft 9 to rotate inside oblong hole 19 and fixed seat 25, causing stirring blade 11 to stir the liquid medicine inside cylinder 1, thus ensuring the uniformity of the liquid medicine. With the increase of use time, the first spring 63 will age, which will cause the downward stroke of piston 62 to increase. As a result, when crankshaft 9 rotates to the lowest position, the second connecting rod 1... The problem of crankshaft 9 being squeezed downwards still exists, which could cause crankshaft 9 to bend or the second connecting rod 10 to be pulled off the first slide rod 18. At this time, through the U-shaped block 20 and its connecting components, when crankshaft 9 continues to move downwards, crankshaft 9 moves inside the elongated hole 19, the fixed seat 25 and the pressure plate 22 bear downward pressure, causing the second spring 23 to compress downwards, and the second slide rod 21 at the top of the limiting plate 24 slides inside the U-shaped block 20, which can relieve the downward squeezing force generated by the increased stroke, thereby achieving the purpose of protecting crankshaft 9 and second connecting rod 10. When the second connecting rod 10 moves upwards, the pressure plate 22 will return to its original position under the action of the second spring 23.

[0030] Contents not described in detail in this specification are existing technologies known to those skilled in the art. Standard parts used in this invention can all be purchased commercially, and irregularly shaped parts can be custom-made according to the description and drawings. The specific connection methods for each part all employ conventional methods such as bolts, rivets, and welding, which are already mature technologies. The machinery, parts, and equipment all use conventional models from the prior art, and the circuit connections also employ conventional connection methods from the prior art, which will not be detailed here.

[0031] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A spraying device, comprising a cylinder (1), characterized in that: A shoulder strap (2) is fixedly connected to the front side of the cylinder (1). A nozzle (3) communicating with the interior of the cylinder (1) is installed on the rear side of the cylinder (1). A flat plate (4) is installed on the top of the cylinder (1). A cover (5) is detachably connected to the top of the flat plate (4). A pressurizing device (6) installed on the top of the cylinder (1) is provided on one side of the cover (5). A first vertical plate (7) and a second vertical plate (8) arranged symmetrically are fixedly connected to the bottom of the flat plate (4). A crankshaft (9) is installed between the first vertical plate (7) and the second vertical plate (8). A vertically arranged second connecting rod (10) is hinged to the top of the crankshaft (9). The top of the second connecting rod (10) passes through the flat plate (4) upward. The outside of the crankshaft (9) is fixedly connected to... There are multiple stirring blades (11), and a telescopic cylinder (12) is provided on the outer side of the top end of the second connecting rod (10). A handle (13) is hinged to the right side of the cylinder (1). A third connecting rod (14) is hinged to the side of the handle (13) near the cylinder (1). A positioning block (15) is fixedly connected to the right side of the cylinder (1) above the third connecting rod. A first sliding rod (18) is vertically slidably connected to the inner side of the positioning block (15). The first sliding rod (18) includes a vertical part (16) and a horizontal part (17). The bottom end of the vertical part (16) of the first sliding rod (18) is hinged to the top end of the third connecting rod (14), and one end of the horizontal part (17) of the first sliding rod (18) is hinged to the top end of the second connecting rod (10).

2. The spraying device according to claim 1, characterized in that: The telescopic cylinder (12) is fixedly connected to the top of the plate (4), and the horizontal part (17) of the first sliding rod (18) passes through the telescopic cylinder (12) and is fixedly connected to the telescopic cylinder (12).

3. The spraying device according to claim 1, characterized in that: The pressurizing device (6) includes a cylinder (61) fixedly connected inside the plate (4) and penetrating the plate (4). A piston (62) is slidably and sealed inside the cylinder (61). A first spring (63) is provided between the bottom end of the inner side of the cylinder (61) and the bottom end of the piston (62). A first connecting rod (64) is fixedly connected to the top end of the piston (62). A one-way valve (65) is installed inside the piston (62) and at the bottom of the cylinder (61). A plurality of filter screens (66) penetrating the cylinder (61) are fixedly connected to the top end of the cylinder (61).

4. A spraying device according to claim 3, characterized in that: The one-way valve (65) located on the piston (62) opens one-way into the cylinder (61), and the one-way valve (65) located at the bottom of the cylinder (61) opens one-way into the cylinder (1). The top end of the first connecting rod (64) is fixedly connected to the horizontal part (17) of the first slide rod (18).

5. A spraying device according to claim 4, characterized in that: The first vertical plate (7) and the second vertical plate (8) are both provided with vertically arranged elongated holes (19) at the bottom. Below the elongated holes (19) are U-shaped blocks (20) fixedly connected to the outside of the first vertical plate (7) and the second vertical plate (8). A second sliding rod (21) is installed on the inside of the U-shaped block (20) and slides downward through it. A pressure plate (22) is fixedly connected to the top of the second sliding rod (21). A second spring (23) is provided on the outside of the second sliding rod (21). A limit plate (24) is fixedly connected to the bottom of the second sliding rod (21). A fixed seat (25) is fixedly connected to the top of the pressure plate (22).

6. A spraying device according to claim 5, characterized in that: The crankshaft (9) is inserted into the inner side of the elongated hole (19), and the crankshaft (9) passes through the fixed seat (25) and is rotatably connected to the fixed seat (25).

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