Spray device

Abstract

A spraying device includes a nozzle assembly mounted on the front end of a hollow handle. The nozzle assembly includes an adapter, a rotating nozzle body, and a fixed nozzle body. The fixed nozzle body has a circular chamber inside and a water outlet hole communicating with the circular chamber on its outer end face. The rotating nozzle body is rotatably fitted onto the outer end of the fixed nozzle body. Several atomizing nozzles of different types are evenly distributed on the end face of the rotating nozzle body. The inner end face of the rotating nozzle body fits against the outer end face of the fixed nozzle body to form a rotating sealing surface, and the atomizing nozzles are coaxially aligned with the water outlet hole. An internal tube is provided inside the hollow handle, and the nozzle assembly is connected to the internal tube through the adapter. A square boss located below the water outlet hole is provided at the inner end of the circular chamber. The size of the square boss is smaller than the size of the circular chamber. This device allows for convenient and quick switching of atomization states, reduces the overall size of the spraying device, provides good flexibility in spraying operations, offers a better user experience, and is conducive to market promotion.

Description

Technical Field

[0001] This invention relates to the field of pesticide spraying, and more particularly to a spraying device. Background Technology

[0002] In agricultural planting or landscaping, in order to ensure the healthy growth of green plants or crops and prevent pest infestation, it is necessary to regularly spray pesticides to kill pests. Therefore, pesticide sprayers are an indispensable and important tool for the prevention and control of diseases and pests.

[0003] A pesticide sprayer mainly consists of a pesticide tank, a pressure device, and a spraying device. When in operation, the pressure device pushes the pesticide in the pesticide tank to the spraying device, and then the spraying device performs the spraying operation.

[0004] Currently, spraying devices on the market mainly consist of a long spray bar and a nozzle mounted at its front end. This long spray bar is inconvenient to store and move, and it is often damaged by bumps and knocks. Furthermore, to switch spray modes, different types of nozzles are mainly used, which is cumbersome. Another method is to install different types of nozzles at the end of the spray bar to achieve switching, which increases the weight and size of the front end of the spraying device, hindering the flexibility of spraying operations and resulting in a poor user experience. Summary of the Invention

[0005] To address the aforementioned problems, this invention proposes a spraying device.

[0006] The technical solution of the present invention is: a spraying device, including a nozzle assembly installed at the front end of a hollow handle. The nozzle assembly includes an adapter, a rotating nozzle body, and a fixed nozzle body. The fixed nozzle body has a circular chamber inside and a circular water outlet hole communicating with the circular chamber on its outer end face. The rotating nozzle body is rotatably fitted onto the outer end of the fixed nozzle body and sealed to it. Several atomizing nozzles of different types are evenly distributed on the end face of the rotating nozzle body. The inner end face of the rotating nozzle body and the outer end face of the fixed nozzle body fit together to form a rotating sealing surface. The atomizing nozzles can be coaxially corresponding with the water outlet hole. An internal tube is provided axially inside the hollow handle. The nozzle assembly is connected to the internal tube through the adapter.

[0007] The inner end of the circular chamber is provided with a square boss located below the water outlet. The square boss is arranged radially and its size is smaller than that of the circular chamber.

[0008] Preferably, the atomizing nozzles include circular atomizing nozzle A, circular atomizing nozzle B, and square atomizing nozzles. Other shapes of atomizing nozzles can also be provided as needed. The size of circular atomizing nozzle A is smaller than the size of circular atomizing nozzle B.

[0009] Preferably, the inner end of the rotary nozzle body is threadedly connected to a limiting sleeve, the inner end face of which is provided with an annular limiting plate, and the middle part of the fixed nozzle body is provided with a limiting step, with the annular limiting plate blocking the limiting step.

[0010] Preferably, the side of the limiting sleeve is provided with a reference strip that corresponds radially to the water outlet hole, and multiple alignment strips are evenly distributed on the outer side of the rotating nozzle body. The reference strip and the alignment strip are in the same direction, and each alignment strip corresponds radially to a different atomizing nozzle.

[0011] Preferably, the adapter includes a circular inner connector body and a circular outer connector body that are threaded together as one piece. The outer end of the inner connector body is connected to the inner tube body, and the outer end of the outer connector body is connected to the circular chamber. Both the inner connector body and the outer connector body are provided with stepped holes. The two stepped holes are connected to each other to form a first circular mixing chamber, a second circular mixing chamber and a third circular mixing chamber. The radial dimension of the second mixing chamber is larger than the radial dimensions of the first mixing chamber and the third mixing chamber.

[0012] Preferably, the outer surface of the outer connector body and the outer surface of the inner end of the fixed nozzle body are both designed as hexagonal structures.

[0013] Preferably, the lower part of the front end of the hollow handle is provided with a support, and an illumination lamp with the same illumination direction and spray direction is installed in the support. The illumination lamp is designed to be detachable.

[0014] Preferably, the hollow handle is equipped with a self-locking button that can automatically rebound, and a pressure plate switch that is hinged to the hollow handle is provided below the self-locking button. The inner surface of the pressure plate switch is provided with a pressure head corresponding to the self-locking button.

[0015] Preferably, the tail end of the hollow handle is connected to a flexible water pipe that is connected to a water pipe. The end of the flexible water pipe is provided with an elastic hook, and the tail end of the hollow handle is provided with a circular hook seat. The elastic hook is hooked into the hook seat to connect the flexible water pipe and the hollow handle.

[0016] Preferably, the atomizing nozzle is disposed inside the columnar head, and a through hole is provided on the end face of the rotating nozzle body. The columnar head is fixedly fitted inside the through hole, and the length of the columnar head is the same as the depth of the through hole.

[0017] The beneficial technical effects of this invention are:

[0018] (1) The spraying device delivers diluted pesticide to the circular chamber of the fixed nozzle body through the internal tube inside the hollow handle. Then, the pesticide flows out from the water outlet and enters the atomizing nozzle to spray. By rotating the nozzle body, different types of atomizing nozzles can be switched to correspond with the water outlet, realizing the rapid switching of different spraying modes. The spraying device does not need to be disassembled or multiple nozzles can be set at the same time to switch the spraying mode. The switching process is convenient and quick, and the overall size of the spraying device can be reduced. The spraying operation is flexible and the user experience is good, which is conducive to market promotion.

[0019] (2) The square protrusion in the circular chamber of the spray device is below the water outlet. After the water comes into contact with the square protrusion, it will be quickly guided upward into the water outlet, increasing the flow rate and improving the atomization effect of the nozzle. In addition, the square protrusion can also play a role in disturbing and mixing the water flow. Combined with the three-stage mixing chamber in the adapter, the pesticide and water can be fully mixed after passing through, thus improving the pest and disease control effect of green plants or crops.

[0020] (3) The spraying device has an internal tube inside the hollow handle, replacing the spray bar of the traditional spraying device. It has a compact structure, is not prone to collision and bending when stored and carried, and has good flexibility in spraying operation. Attached Figure Description

[0021] Figure 1 This is a three-dimensional structural schematic diagram of the present invention;

[0022] Figure 2 This is a side view of the structure of the present invention;

[0023] Figure 3 yes Figure 2 Sectional view along axis AA;

[0024] Figure 4 yes Figure 3 A magnified view of a portion of the image;

[0025] Figure 5 yes Figure 4 BB-direction sectional view;

[0026] Figure 6 A three-dimensional structural diagram of the rotating nozzle body;

[0027] Figure 7 This is a schematic diagram of the three-dimensional structure of the fixed nozzle body.

[0028] In the diagram, 01. Nozzle assembly, 11. Rotating nozzle body, 111. Circular atomizing nozzle A, 112. Circular atomizing nozzle B, 113. Square atomizing nozzle, 114. Alignment strip, 12. Fixed nozzle body, 121. Circular chamber, 122. Water outlet, 123. Rotary sealing surface, 124. Square boss, 13. Limiting sleeve, 131. Annular limiting plate, 132. Reference strip, 14. Adapter, 141. Internal connection 142. Head body, 143. External connector body, 144. First mixing chamber, 145. Second mixing chamber, 146. Third mixing chamber, 02. Hollow handle, 21. Illuminating lamp, 22. Self-locking button, 23. Pressure plate, 231. Pressure head, 24. Hanging seat, 25. Internal tube body, 26. Button, 27. Reflective mirror, 28. Hanging ear, 29. Reinforcing plate, 31. Flexible water pipe, 32. Elastic hook body, 41. Columnar head. Detailed Implementation

[0029] Example 1, see appendix to the instruction manual. Figure 1-7 A spraying device includes a nozzle assembly 01 installed at the front end of a hollow handle 02. The nozzle assembly 01 includes an adapter 14, a rotating nozzle body 11, and a fixed nozzle body 12. The fixed nozzle body 12 has a circular chamber 121 inside and a water outlet 122 communicating with the circular chamber 121 on its outer end face. The rotating nozzle body 11 is rotatably fitted onto the outer end of the fixed nozzle body 12. A rotating sealing strip is provided between the rotating nozzle body 11 and the fixed nozzle body 12 to ensure a leak-proof seal between them. A plurality of non-... For the same type of atomizing nozzle, the inner end face of the rotating nozzle body 11 and the outer end face of the fixed nozzle body 12 are fitted together to form a rotating sealing surface 123, and the atomizing nozzle can be coaxially corresponding with the water outlet 122. By rotating the rotating nozzle, different types of atomizing nozzles can be switched to correspond with the water outlet 122. The switching process is convenient and quick, and the overall size of the spraying device can be reduced. The spraying operation is flexible. The hollow handle 02 is provided with an internal tube 25. The nozzle assembly 01 is connected to the internal tube 25 through the adapter 14. The internal tube 25 is connected to the bottom of the medicine tank through a pipe.

[0030] The inner end of the circular chamber 121 is provided with a square boss 124 located below the water outlet 122. The size of the square boss 124 is smaller than the size of the circular chamber 121. After the water flows through the square boss 124, it will be quickly guided upward into the water outlet 122, increasing the flow rate and improving the atomization effect of the nozzle. In addition, the square boss 124 can also play a role in disturbing and mixing the water flow.

[0031] The atomizing nozzles include a circular atomizing nozzle A 111, a circular atomizing nozzle B 112, and a square atomizing nozzle 113. The size of the circular atomizing nozzle A 111 is smaller than that of the circular atomizing nozzle B 112. Different shapes of atomizing nozzles can form different atomization states. The number and shape of the atomizing nozzles can be set according to the requirements. A reinforcing plate 29 is provided on the end face of the rotating nozzle body 11 between the three atomizing nozzles.

[0032] The inner end of the rotary nozzle body 11 is threadedly connected to a limiting sleeve 13. The inner end face of the limiting sleeve 13 is provided with an annular limiting plate 131. The middle part of the fixed nozzle body 12 is provided with a limiting step. The annular limiting plate 131 blocks the limiting step. The limiting sleeve 13 limits the axial movement of the rotary nozzle body 11, restricting it to rotate only outside the fixed nozzle body 12 to adjust the spray state.

[0033] The side of the limiting sleeve 13 is provided with a reference strip 132 that corresponds radially to the water outlet 122. The outer side of the rotating nozzle body 11 is evenly distributed with multiple alignment strips 114. Each alignment strip 114 corresponds radially to a different atomizing nozzle. The alignment of the reference strip 132 and the alignment strip 114 indicates that the atomizing nozzle and the water outlet 122 are coaxially aligned, thus avoiding the phenomenon that the atomizing nozzle and the water outlet 122 are misaligned, resulting in poor spray effect.

[0034] The adapter 14 includes an inner connector body 141 and an outer connector body 142 that are threaded together. The outer end of the inner connector body 141 is connected to the inner tube 25, and the outer end of the outer connector body 142 is connected to the circular chamber 121. Both the inner connector body 141 and the outer connector body 142 are provided with stepped holes. The two stepped holes are connected to each other to form a first mixing chamber 143, a second mixing chamber 144, and a third mixing chamber 145. The radial dimension of the second mixing chamber 144 is larger than the radial dimensions of the first mixing chamber 143 and the third mixing chamber 145. Pesticides and water enter the first mixing chamber 143 to form a primary mixture, then enter the second mixing chamber 144 to accelerate the mixture, and then enter the third mixing chamber 145 to mix and flow out, forming a three-stage mixing structure with a good mixing effect.

[0035] The outer surface of the outer connector body 142 and the outer surface of the inner end of the fixed nozzle body 12 are both provided with an external hexagonal structure. This external hexagonal structure is used to tighten with a wrench, thereby improving the firmness of the connection between the outer connector body 142 and the fixed nozzle body 12.

[0036] The hollow handle 02 has a support at the lower part of the front end, and an illumination lamp 21 with the same irradiation direction and spray direction is installed in the support. The illumination lamp 21 is used to irradiate crops and green plants, which helps to find the location of serious pests and diseases and to carry out atomized spraying. The hollow handle 02 has a hanging ear 28 at the rear end.

[0037] The hollow handle 02 has a self-locking button 22 installed inside, which is used to control the start and stop of the pressure device inside the medicine box. There are three buttons 26 on the upper part of the hollow handle 02, which are used to control the power of the pressure device to adjust the atomization range of the device. At the same time, there is a reflective mirror 27 at the front end of the hollow handle 02. Below the self-locking button 22, there is a pressure plate 23 switch that is hinged to the hollow handle 02. The inner surface of the pressure plate 23 switch has a pressure head 231 corresponding to the self-locking button 22. When holding the hollow handle 02 to spray medicine, the fingers hold and press the pressure plate 23 switch, which can open or close the self-locking button 22 through the internal pressure head 231. Therefore, the start and stop of atomized medicine spraying can be controlled conveniently and quickly.

[0038] The hollow handle 02 is connected to a flexible water pipe 31 at its tail end, which is connected to a water pipe. The end of the flexible water pipe 31 is provided with an elastic hook 32, and the tail end of the hollow handle 02 is provided with a hook seat 24. The elastic hook 32 hooks into the hook seat 24 to connect the flexible water pipe 31 and the hollow handle 02. This connection method between the flexible water pipe 31 and the hollow handle 02 is convenient for disassembly and assembly, and easy for maintenance.

[0039] The atomizing nozzle is located inside the columnar head 41. A through hole is provided on the end face of the rotating nozzle body 11. The columnar head 41 is fixedly fitted into the through hole. When the diameter of the atomizing nozzle changes after long-term use, resulting in poor atomization effect, a new atomizing nozzle can be replaced by replacing the columnar head 41. It is not necessary to replace the entire rotating nozzle body 11, which helps to save on usage costs.

[0040] The method of using this invention is as follows: First, rotate the nozzle body according to the desired atomization spray pattern. After the alignment strip 114 of the atomizing nozzle is aligned with the reference strip 132, the atomizing nozzle and the water outlet 122 are coaxially corresponding. Second, hold the handle and point the nozzle assembly 01 toward the crops or green plants, then press the pressure plate 23 switch with your finger. The pressure head 231 of the pressure plate 23 switch presses against the self-locking button 22, and the pressure device in the medicine tank is activated. Third, the diluted pesticide enters the inner tube 25 through the flexible water pipe 31 and then enters the first mixing chamber 143 inside the rotating head to form a primary mixture. The mixture enters the second mixing chamber 144 for accelerated mixing, then enters the third mixing chamber 145 for further mixing and flow out, and finally enters the circular chamber 121 of the fixed nozzle body 12. In the fourth step, after the water flows into the circular chamber 121, it is quickly guided upwards to the outlet 122, increasing the flow rate. At the same time, the square protrusion 124 acts as a disturbance and mixing agent for the water flow. Combined with the three-stage mixing chambers in the adapter 14, the pesticide and water are fully mixed. In the fifth step, the fully mixed pesticide enters the atomizing nozzle from the outlet 122 and is atomized and sprayed onto crops or green plants for pest and disease control.

Claims

1. A spraying device, characterized in that: The nozzle assembly includes a nozzle mounted on the front end of a hollow handle. The nozzle assembly includes an adapter, a rotating nozzle body, and a fixed nozzle body. The fixed nozzle body has a circular chamber inside and a water outlet hole communicating with the circular chamber on its outer end face. The rotating nozzle body is rotatably fitted onto the outer end of the fixed nozzle body. Several atomizing nozzle holes of different types are evenly distributed on the end face of the rotating nozzle body. The inner end face of the rotating nozzle body fits against the outer end face of the fixed nozzle body to form a rotating sealing surface. The atomizing nozzle holes can be coaxially aligned with the water outlet hole. The hollow handle has an internal tube inside, and the nozzle assembly is connected to the internal tube through the adapter. The inner end of the circular chamber is provided with a square boss located below the water outlet, and the size of the square boss is smaller than the size of the circular chamber. The atomizing nozzles include circular atomizing nozzle A, circular atomizing nozzle B, and square atomizing nozzles, wherein the size of circular atomizing nozzle A is smaller than the size of circular atomizing nozzle B; The inner end of the rotary nozzle body is threadedly connected to a limiting sleeve. The inner end face of the limiting sleeve is provided with an annular limiting plate. The middle part of the fixed nozzle body is provided with a limiting step. The annular limiting plate blocks the limiting step. The side of the limiting sleeve is provided with a reference strip corresponding to the radial direction of the water outlet. The outer side of the rotary nozzle body is evenly distributed with multiple alignment strips. Each alignment strip corresponds to a different atomizing nozzle radially. The adapter includes an inner connector body and an outer connector body that are threaded together. The outer end of the inner connector body is connected to the inner tube body, and the outer end of the outer connector body is connected to the circular chamber. Both the inner connector body and the outer connector body are provided with stepped holes. The two stepped holes are connected to each other to form a first mixing chamber, a second mixing chamber and a third mixing chamber. The radial dimension of the second mixing chamber is larger than the radial dimensions of the first mixing chamber and the third mixing chamber. The lower part of the front end of the hollow handle is provided with a support, and an illumination lamp with the same illumination direction and spray direction is installed in the support.

2. The spraying device according to claim 1, characterized in that: Both the outer surface of the external connector body and the outer surface of the inner end of the fixed nozzle body are designed as hexagonal structures.

3. The spraying device according to claim 1, characterized in that: The hollow handle is equipped with a self-locking button, and below the self-locking button is a pressure plate switch that is hinged to the hollow handle. The inner surface of the pressure plate switch is provided with a pressure head corresponding to the self-locking button.

4. A spraying device according to claim 1, characterized in that: The hollow handle has a flexible water pipe connected to the end of the hollow handle. The end of the flexible water pipe is provided with an elastic hook. The end of the hollow handle is provided with a hook seat. The elastic hook is hooked into the hook seat to connect the flexible water pipe and the hollow handle.

5. A spraying device according to claim 1, characterized in that: The atomizing nozzle is located inside the columnar head, and a through hole is provided on the end face of the rotating nozzle body, with the columnar head fixedly fitted inside the through hole.

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