Precise pesticide spraying device with flow adjusting function

Abstract

The utility model belongs to the technical field of agricultural pesticide spraying devices, and particularly relates to a precise pesticide spraying device with a flow adjusting function, which comprises a transmission pipeline, a flow adjusting valve and a pressure sensor, a protective shell is mounted on the transmission pipeline, a rotating shaft is rotatably connected to the inner wall of the protective shell, and a plurality of blades are fixedly connected to the side wall of the rotating shaft. A rotating speed sensor and a rotating turn number sensor for monitoring the rotating shaft are mounted in the protective shell; one end of the transmission pipeline is rotationally connected with a plugging ring; the rotating shaft is driven to rotate through the medicament pushing blade, the rotating shaft is monitored through the rotating circle number sensor and the sliding groove, when the rotating number of the rotating shaft is reached, the device automatically stops medicament feeding, the situation that the medicament is fed too much or too little is avoided, and the accuracy of the medicament feeding amount is improved; the spraying holes in the spraying head can be plugged by controlling the plugging ring to rotate, and the phenomenon that the spraying holes are plugged due to the influence of dust, impurities and insects in the external environment is avoided.

Description

Technical Field

[0001] The utility model belongs to the technical field of agricultural spraying devices, and in particular relates to a precise spraying device with a flow regulating function. Background Art

[0002] Crops are easily attacked by various viruses, bacteria, fungi, insects and other pests and diseases. Spraying can effectively prevent and control these pests and diseases and reduce crop losses. By spraying crops with appropriate amounts of pesticides, crop yield and quality can be guaranteed, and production reduction and quality degradation caused by pests and diseases can be reduced. When in use, the agent is directed to the nozzle position by the transmission pipeline for delivery, and the flow regulating valve is used to control the amount of agent transmitted in the pipeline within a single time. However, in some small-scale seedling cultivation areas, seedlings are relatively concentrated, and there are strict requirements on the amount of agent sprayed. Therefore, the amount of agent delivered needs to be strictly controlled. In actual use, it is sometimes easy to have more or less agent delivered, which will affect the growth of seedlings. In addition, when the nozzle is not in use, it is easy to be blocked by dust impurities and insects in the external environment due to long-term exposure, affecting later use. Utility Model Content

[0003] The utility model provides a precise spraying device with a flow rate regulating function, which has the characteristic of improving the precise control of the amount of pesticide released.

[0004] The utility model provides the following technical solution: it includes a transmission pipeline, a flow regulating valve, and a pressure sensor, wherein a protective shell is installed on the transmission pipeline, the inner wall of the protective shell is rotatably connected to a rotating shaft, the side wall of the rotating shaft is fixedly connected to a plurality of blades, and the plurality of blades are rotatably connected to the inner wall of the protective shell, a speed sensor and a rotation number sensor for monitoring the rotating shaft are installed in the protective shell, one end of the transmission pipeline is rotatably connected to a blocking ring, and a side wall of the blocking ring is provided with a making way notch for making way for a spray hole.

[0005] Among them, an electric telescopic rod is installed in the protective shell, and a bevel gear is fixedly connected to the output end of the electric telescopic rod. A bevel gear groove is opened at one end of the rotating shaft, and the bevel gear is meshed and connected to the inner wall of the bevel gear groove.

[0006] There are two slide grooves in the protective shell, and two limit sliders are fixedly connected to the side wall of the bevel gear. The limit sliders are slidably connected to the inner walls of the corresponding slide grooves.

[0007] Wherein, a ratchet ring is arranged between the rotating shaft and the protective shell, and the ratchet ring controls the rotating shaft to rotate in one direction.

[0008] Wherein, two one-way valves are installed on the protective shell, and the two one-way valves correspond to the positions of the transmission pipeline.

[0009] The beneficial effects of the utility model are as follows: the blades are pushed by the medicine to drive the rotating shaft to rotate, the rotation circle sensor and the slide groove monitor the rotating shaft, and when the number of rotations of the rotating shaft is reached, the device automatically stops releasing the medicine to avoid excessive or insufficient medicine release, improve the accuracy of the medicine release amount, and reduce the impact of the deviation of the medicine release amount on the growth of seedlings; by controlling the rotation of the sealing ring, the sealing ring can seal the spray hole on the nozzle to avoid the spray hole being blocked by dust, impurities and insects in the external environment, which will affect the subsequent use.

[0010] The parts not involved in the device are the same as those in the prior art or can be implemented by using the prior art. BRIEF DESCRIPTION OF THE DRAWINGS

[0011] Figure 1 It is a front view cross-sectional structural schematic diagram of the utility model;

[0012] Figure 2 It is a side view cross-sectional enlarged structural schematic diagram of the protective housing and other components in the utility model;

[0013] Figure 3 for Figure 1 The enlarged structural diagram of the middle A part;

[0014] Figure 4 It is a three-dimensional enlarged structural schematic diagram of the sealing ring in the utility model.

[0015] In the figure: 1. Transmission pipeline; 11. Flow control valve; 12. Pressure sensor; 14. Nozzle; 2. Protective shell; 21. Rotating shaft; 211. Conical tooth groove; 22. Blade; 23. Speed ​​sensor; 24. Rotation number sensor; 25. Slide; 26. Ratchet ring; 27. One-way valve; 3. Electric telescopic rod; 31. Bevel gear; 32. Limit slider; 4. Sealing ring; 41. Make way gap. DETAILED DESCRIPTION

[0016] See also Figures 1 to 4 The utility model provides the following technical solutions: including a transmission pipeline 1, a flow regulating valve 11, and a pressure sensor 12. A protective shell 2 is installed on the transmission pipeline 1. The inner wall of the protective shell 2 is rotatably connected to a rotating shaft 21. The side wall of the rotating shaft 21 is fixedly connected to a plurality of blades 22. The plurality of blades 22 are rotatably connected to the inner wall of the protective shell 2. A speed sensor 23 and a rotation number sensor 24 for monitoring the rotating shaft 21 are installed in the protective shell 2. A sealing ring 4 is rotatably connected to one end of the transmission pipeline 1. A clearance notch 41 is opened on the side wall of the sealing ring 4 to make way for the spray hole.

[0017] In this embodiment: the transmission pipeline 1 supports each component of the device, the transmission pipeline 1 transmits the medicine required for the seedling cultivation area, the transmission pipeline 1 uses a flow control valve 11 to adjust and control the flow of the medicine circulating inside, so as to adjust the speed of the medicine delivery, and the pressure sensor 12 detects the pressure of the medicine output inside the transmission pipeline 1 in real time, so that after the flow control valve 11 is adjusted, the pressure value is transmitted to the pump body in time by the pressure sensor 12, the output power of the pump body is adjusted, and the stability of the medicine transmission is maintained, the protective shell 2 supports each internal component and provides external protection, the transmission pipeline 1 transmits the medicine into the protective shell 2, and after the medicine enters the protective shell 2, it pushes a plurality of blades 22, so that the plurality of blades 22 can drive the rotating shaft 21 to rotate, and the rotating shaft 21 can be monitored by the rotation number sensor 24 and the slide 25 when rotating, so that the rotation speed and the number of rotations of the rotating shaft 21 can be timely known, and the internal space of the protective shell 2 is constant, so that when the medicine pushes The blade 22 rotates, and when the blade 22 drives the rotating shaft 21 to rotate, the content of the medicine circulating inside the protective shell 2 can be known, so the amount of medicine and the speed of medicine delivery can be monitored. When the medicine is delivered, by setting the number of revolutions of the rotating shaft 21, when the number of revolutions of the rotating shaft 21 is reached, the device automatically stops delivering the medicine, avoiding the situation of too much or too little medicine delivery, improving the accuracy of the medicine delivery, and reducing the influence of the deviation of the medicine delivery on the growth of the seedlings. The transmission pipeline 1 transmits the medicine into the nozzle 1 4 position, the medicine is delivered through the nozzle hole position of the nozzle 14 to achieve spraying, the blocking ring 4 drives the position of the clearance gap 41 to be adjusted by rotation, when the clearance gap 41 is aligned with the nozzle hole on the nozzle 14, the nozzle 14 can spray medicine normally, when the nozzle 14 finishes spraying, the staff rotates the blocking ring 4 to make the clearance gap 41 deviate from the nozzle hole position, so that the nozzle hole on the nozzle 14 can be blocked, avoiding the nozzle hole being blocked by dust, impurities and insects in the external environment, which affects the subsequent use.

[0018] An electric telescopic rod 3 is installed in the protective shell 2, and a bevel gear 31 is fixedly connected to the output end of the electric telescopic rod 3. A bevel gear groove 211 is opened at one end of the rotating shaft 21, and the bevel gear 31 is meshed and connected to the inner wall of the bevel gear groove 211; the electric telescopic rod 3 supports and drives the bevel gear 31, and the bevel gear 31 can slide in the direction of the rotating shaft 21. When the bevel gear 31 is disengaged from the bevel gear groove 211, the rotating shaft 21 can rotate normally, so that the medicine can be conveyed and discharged normally. When the rotating shaft 21 rotates a certain number of times, the device stops conveying, and the electric telescopic rod 3 extends at the same time, and the electric telescopic rod 3 drives the bevel gear 31 to insert into the bevel gear groove 211, so that the bevel gear 31 can limit the rotating shaft 21 through the bevel gear groove 211 to prevent the rotating shaft 21 and the blade 22 from continuing to rotate, so that the blade 22 can limit the medicine to prevent it from continuing to flow.

[0019] Two slide grooves 25 are provided in the protective shell 2, and two limit sliders 32 are fixedly connected to the side wall of the bevel gear 31, and the limit sliders 32 are slidably connected to the inner walls of the corresponding slide grooves 25; the bevel gear 31 supports and drives the two limit sliders 32, and the limit slider 32 limits the bevel gear 31 through the slide groove 25 to prevent the bevel gear 31 from rotating when limiting the rotating shaft 21, thereby improving the stability of limiting the rotating shaft 21.

[0020] A ratchet ring 26 is arranged between the rotating shaft 21 and the protective shell 2, and the ratchet ring 26 controls the unidirectional rotation of the rotating shaft 21; the ratchet ring 26 limits the rotating shaft 21 in the reverse direction through its own ratchet teeth, so that the medicine transported inside the transmission pipe 1 pushes the blade 22 to rotate. When the blade 22 drives the rotating shaft 21 to rotate, the rotating shaft 21 will not rotate in the reverse direction, thereby improving the stability of the circulation of the medicine inside the protective shell 2.

[0021] Two one-way valves 27 are installed on the protective shell 2, and the two one-way valves 27 correspond to the positions of the transmission pipeline 1; the one-way valves 27 block the circuit of the circulating medicine inside the protective shell 2 and the transmission pipeline 1 to prevent the medicine inside the protective shell 2 from flowing back into the transmission pipeline 1.

[0022] The working principle and use process of the utility model are as follows: when the device is spraying medicine, the number of rotations of the rotating shaft 21 is set, and then the blocking ring 4 is rotated so that the gap 41 can be aligned with the spray hole position, and the pump body transports the medicine into the protective shell 2 through the transmission pipeline 1. After the medicine enters the protective shell 2, it pushes a plurality of blades 22, so that the plurality of blades 22 can drive the rotating shaft 21 to rotate. When the rotating shaft 21 rotates, it can be monitored by the rotation number sensor 24 and the slide chute 25, so that the rotation speed and number of rotations of the rotating shaft 21 can be timely known. When the number of rotations of the rotating shaft 21 is reached, the device automatically stops delivering the medicine, and the electric telescopic rod 3 is extended at the same time. The electric telescopic rod 3 drives the bevel gear 31 to enter the bevel tooth groove 211, so that the bevel gear 31 can limit the rotating shaft 21 through the bevel tooth groove 211, preventing the rotating shaft 21 and the blade 22 from continuing to rotate, so that the blade 22 can limit the medicine to prevent continued flow, avoid excessive or insufficient medicine, improve the accuracy of the medicine dosage, and reduce the impact of the deviation of the medicine dosage on the growth of seedlings. When the spraying of the nozzle 14 is completed, the staff rotates the sealing ring 4 to make the clearance gap 41 deviate from the spray hole position, so that the spray hole on the nozzle 14 can be blocked, avoiding the spray hole being blocked by dust and impurities in the external environment, which affects the subsequent use.

Claims

1. A precision spraying device with a flow regulating function, comprising a transmission pipeline (1), a flow regulating valve (11), and a pressure sensor (12), characterized in that: A protective shell (2) is installed on the transmission pipeline (1), the inner wall of the protective shell (2) is rotatably connected to a rotating shaft (21), the side wall of the rotating shaft (21) is fixedly connected to a plurality of blades (22), the plurality of blades (22) are rotatably connected to the inner wall of the protective shell (2), a rotation speed sensor (23) and a rotation number sensor (24) for monitoring the rotating shaft (21) are installed in the protective shell (2), one end of the transmission pipeline (1) is rotatably connected to a blocking ring (4), and a side wall of the blocking ring (4) is provided with a clearance notch (41) for making way for the spray hole.

2. A precision spraying device with flow rate regulation function according to claim 1, characterized in that: An electric telescopic rod (3) is installed in the protective housing (2); a bevel gear (31) is fixedly connected to the output end of the electric telescopic rod (3); a bevel gear groove (211) is provided at one end of the rotating shaft (21); and the bevel gear (31) is meshedly connected to the inner wall of the bevel gear groove (211).

3. A precision spraying device with flow rate regulation function according to claim 2, characterized in that: Two slide grooves (25) are provided in the protective housing (2), and two limit sliders (32) are fixedly connected to the side walls of the bevel gear (31), and the limit sliders (32) are slidably connected to the inner walls of the corresponding slide grooves (25).

4. The precision spraying device with flow rate regulation function according to claim 1, characterized in that: A ratchet ring (26) is provided between the rotating shaft (21) and the protective shell (2), and the ratchet ring (26) controls the rotating shaft (21) to rotate in one direction.

5. The precision spraying device with flow rate regulation function according to claim 1, characterized in that: Two one-way valves (27) are installed on the protective housing (2), and the two one-way valves (27) correspond to the positions of the transmission pipeline (1).

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