CN211932220U - Pesticide spraying system - Google Patents
Pesticide spraying system Download PDFInfo
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- CN211932220U CN211932220U CN202020087258.0U CN202020087258U CN211932220U CN 211932220 U CN211932220 U CN 211932220U CN 202020087258 U CN202020087258 U CN 202020087258U CN 211932220 U CN211932220 U CN 211932220U
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Abstract
The utility model discloses a spout medicine system, including dosing pump, spout medicine pump, first container, second container, sprinkler, controller, level sensor and first solenoid valve, the controller includes timing unit and signal identification unit, and wherein, the signal identification unit is triggered by level sensor, and the first solenoid valve of signal identification unit control is opened to input the diluent to the second container, the signal identification unit triggers timing unit and adds the medicine according to timing control dosing pump. Therefore, the utility model discloses can control the concentration of diluting the liquid medicine comparatively accurately for liquid medicine concentration is more accurate, simultaneously, can avoid the manual medicine, uses manpower sparingly, and the guarantee staff is healthy. The utility model discloses can wide application in agricultural equipment field.
Description
Technical Field
The utility model belongs to the technical field of agricultural equipment and specifically relates to a spout medicine system.
Background
Agricultural pesticide spraying equipment is commonly used to spray liquid chemicals to crops or livestock to reduce the effects of pests or diseases.
The existing agricultural pesticide spraying equipment generally adopts manual pesticide feeding. Generally, the liquid medicine is purchased as a concentrated liquid and needs to be diluted for spraying. These solutions may be toxic to human body, so that on one hand, the health of workers is impaired and manpower is consumed by manual dilution, and on the other hand, concentration deviation is easy to occur in the manually diluted concentration.
SUMMERY OF THE UTILITY MODEL
In order to solve the technical problem, the utility model aims to provide a: the utility model provides a spout medicine system to it is automatic to realize diluting the liquid medicine, uses manpower sparingly on the one hand, ensures staff's health, and on the other hand improves the degree of accuracy of liquid medicine concentration.
The utility model adopts the technical proposal that:
a medicine spraying system comprises a medicine feeding pump, a medicine spraying pump, a first container, a second container, a spraying device, a controller, a liquid level sensor and a first electromagnetic valve, wherein the controller comprises a timing unit and a signal identification unit;
the output end of the liquid level sensor is connected with the input end of the signal identification unit, and the output end of the signal identification unit is connected with the enabling end of the first electromagnetic valve so as to control the diluent to enter or stop entering the first container;
the signal identification unit control the timing unit, the output control of timing unit add the medicine pump, the output control of controller spout the medicine pump, the inlet that adds the medicine pump is arranged in drawing the liquid medicine from the second container, the liquid outlet that adds the medicine pump is used for exporting first container with the liquid medicine, the inlet that spouts the medicine pump is used for following first container draws the liquid medicine, spout the liquid outlet of medicine pump with sprinkler connects.
Further, the dosing pump and the pesticide spraying pump are both pneumatic pumps, and both the dosing pump and the pesticide spraying pump comprise pneumatic inlets;
the pesticide spraying system also comprises a high-pressure gas generating device, a second electromagnetic valve and a third electromagnetic valve, wherein the high-pressure gas output end of the high-pressure gas generating device is connected with the pneumatic inlet of the pesticide feeding pump through the second electromagnetic valve, and the high-pressure gas output end of the high-pressure gas generating device is connected with the pneumatic inlet of the pesticide spraying pump through the third electromagnetic valve; the output end of the controller controls the pesticide spraying pump through a third electromagnetic valve, and the output end of the timing unit controls the pesticide feeding pump through a second electromagnetic valve;
wherein, the high pressure gas refers to gas with the pressure of more than 1 atmosphere.
The flow meter is connected with the first electromagnetic valve and used for detecting the flow of the diluent entering the first container, and the output end of the signal identification unit is connected with the control end of the flow meter;
the controller also comprises a numerical value conversion unit, the output end of the flowmeter is connected with the input end of the numerical value conversion unit, and the output of the signal identification unit controls the timing unit through the numerical value conversion unit.
The controller controls the three-way electromagnetic valve, the liquid outlet of the pesticide spraying pump is connected with the spraying device through the three-way electromagnetic valve, and the three-way electromagnetic valve is used for controlling the spraying device or the first container to flow to which the liquid outlet of the pesticide spraying pump is connected.
Furthermore, one end of the three-way electromagnetic valve extends into the first container through a pipeline, and a first flow regulator is arranged at one end, far away from the three-way electromagnetic valve, of the pipeline.
Further, a second flow regulator is connected to the first electromagnetic valve.
Further, the liquid level sensor is a float switch.
Further, still include first check valve and second check valve, the export of first check valve with the inlet of dosing pump is connected, the export of second check valve with the inlet of medicine spraying pump is connected.
Further, a filter is arranged at the inlet of the second one-way valve.
Further, the device also comprises a first pressure regulating valve and a second pressure regulating valve;
the first pressure regulating valve is arranged between the high-pressure gas output end of the high-pressure gas generating device and the pneumatic inlet of the dosing pump and used for regulating the speed of the dosing pump;
the second pressure regulating valve is arranged between the high-pressure gas output end of the high-pressure gas generating device and the pneumatic inlet of the pesticide spraying pump and used for regulating the speed of the pesticide spraying pump.
The utility model has the advantages that: according to the scheme, the controller, the dosing pump and the liquid level sensor are arranged, after a signal generated by the liquid level sensor at a low liquid level is identified by a signal identification unit of the controller, the liquid level sensor triggers the controller to open the first electromagnetic valve to add the diluent into the first container, and after the signal generated by the liquid level sensor at a high liquid level is identified by the signal identification unit of the controller, the first electromagnetic valve is closed; the timing of signal identification unit control timing unit, when starting to count, the timing unit triggers add the medicine pump, and the timing unit closes the pump that adds the medicine after the timing finishes, and the time of adding the medicine of pump is confirmed by the timing of timing unit, and level sensor's low liquid level and high liquid level point are definite, and the volume of the diluent of adding can be confirmed, consequently, dilution ratio is relatively stable and accurate, the utility model discloses can realize adding the automation of medicine, reduce the cost of labor, protect staff's health.
Drawings
Fig. 1 is a block diagram of a chemical spraying system according to an embodiment of the present invention;
fig. 2 is a block diagram of a spraying system according to another embodiment of the present invention;
fig. 3 is a structural diagram of a pesticide spraying system according to an embodiment of the present invention.
Detailed Description
The invention is further described with reference to the drawings and the specific embodiments.
Referring to fig. 1, a pesticide spraying system includes a pesticide feeding pump, a pesticide spraying pump, a first container, a second container, a spraying device, a controller, a liquid level sensor and a first solenoid valve, wherein the controller includes a timing unit and a signal recognition unit;
the output end of the liquid level sensor is connected with the input end of the signal identification unit, and the output end of the signal identification unit is connected with the enabling end of the first electromagnetic valve so as to control the diluent to enter or stop entering the first container;
the signal identification unit control the timing unit, the output control of timing unit add the medicine pump, the output control of controller spout the medicine pump, the inlet that adds the medicine pump is arranged in drawing the liquid medicine from the second container, the liquid outlet that adds the medicine pump is used for exporting first container with the liquid medicine, the inlet that spouts the medicine pump is used for following first container draws the liquid medicine, spout the liquid outlet of medicine pump with sprinkler connects.
The dosing pump and the spraying pump can be pneumatic pumps or electric pumps, the controller can control the start and stop of the dosing pump and the spraying pump through electric signals, and for example, when the pneumatic pumps are adopted, the pneumatic inlets of the dosing pump and the spraying pump are controlled through electromagnetic valves. When the electric pump is adopted, the power supply of the dosing pump and the pesticide spraying pump can be controlled through a relay and the like. In this embodiment, the rotational speed of the dosing pump is adjustable, but is fixed during normal operation after adjustment.
The controller may be connected to the communication module or a button, and the user may control the start and stop of the spray pump by sending a command to the communication module or by pressing the button.
The liquid level sensor can be realized by adopting a float switch or a double-contact liquid level switch, the liquid level sensor sends out a first signal when detecting a low liquid level, and the liquid level sensor sends out a second signal when detecting a high liquid level.
The signal identification unit of the controller is used for identifying a first signal and a second signal, wherein in the embodiment, the first signal is a rising edge signal, the second signal is a falling edge signal, and when the signal identification unit detects the rising edge, the low level is changed into the high level. When the signal recognition unit detects the falling edge, it changes from the high level to the low level.
The first electromagnetic valve is opened when the signal identification unit outputs a high level and is closed when the signal identification unit outputs a low level.
And the timing unit starts timing (counting down or counting forward until a set value) when detecting a rising edge or a falling edge, outputs a high level to control the dosing pump to start, outputs a low level to close the dosing pump when the timing is finished, and the timing of the timing unit is preset according to the dilution concentration and the trigger mode.
The spraying device is used for spraying liquid medicine and can be composed of a plurality of nozzles and a plurality of pipelines.
Referring to fig. 2 and 3, the spraying system of the present embodiment includes: the high-pressure gas generator 101, the first electromagnetic valve 111, the second electromagnetic valve 112, the third electromagnetic valve 113, the first check valve 121, the second check valve 122, the dosing pump 141, the spraying pump 142, the controller 161, the first pressure regulating valve 171, the second pressure regulating valve 172, the first container 181, the second container 182, the spraying device 191, the liquid level sensor 201, the filter 202, the flowmeter 203, the first flow regulator 204, and the second flow regulator 205. The controller 161 includes a signal recognition unit, a timing unit, and a numerical value conversion unit.
The dosing pump 141 and the spraying pump 142 are both pneumatic pumps, and the dosing pump 141 and the spraying pump 142 both comprise pneumatic inlets;
the high-pressure gas output end of the high-pressure gas generating device 101 is connected with the pneumatic inlet of the dosing pump 141 through a second electromagnetic valve 112, and the high-pressure gas output end of the high-pressure gas generating device 101 is connected with the pneumatic inlet of the spraying pump 142 through a third electromagnetic valve 113; the output of the controller 161 controls the spray pump 142 via a third solenoid valve 113.
The high-pressure gas is a gas having a pressure greater than 1 atmosphere, and generally 2 to 5 atmospheres are used. The dosing pump can be deployed outdoors without fear of electrical leakage by using a pneumatic pump. The controller can control the on/off of the second solenoid valve 112 and the third solenoid valve 113 to control the high-pressure gas entering the dosing pump 141 and the spraying pump 142 respectively, so as to control the dosing pump 141 and the spraying pump 142 to be shut down. When the medicine adding pump 141 is operated, the concentrated medicine liquid is pumped from the second container 182 into the first container 181.
Wherein, the present embodiment is provided with a first pressure regulating valve 171 and a second pressure regulating valve 172, the first pressure regulating valve 171 is arranged between the high-pressure gas output end of the high-pressure gas generating device 101 and the pneumatic inlet of the dosing pump 141 for regulating the speed of the dosing pump 141; the second pressure regulating valve is provided between the high-pressure gas output of the high-pressure gas generating device 101 and the pneumatic inlet of the spray pump 142 to regulate the speed of the spray pump 142.
The liquid level sensor 201 can be implemented by a float switch or a dual-contact liquid level switch, the liquid level sensor 201 sends out a first signal when detecting a low liquid level, and the liquid level sensor sends out a second signal when detecting a high liquid level.
The signal identifying unit is used for identifying a first signal and a second signal, wherein the first signal is a rising edge signal and the second signal is a falling edge signal, and when the signal identifying unit detects the rising edge, the signal identifying unit changes from a low level to a high level. When the signal recognition unit detects the falling edge, it changes from the high level to the low level.
The first electromagnetic valve is opened when the signal identification unit outputs a high level and is closed when the signal identification unit outputs a low level.
In this embodiment, the flow meter 203 is connected to the first solenoid valve 111 to detect the flow of the diluent into the first container 181. The output end of the flowmeter 203 is connected with the input end of the numerical value conversion unit, and the output of the signal identification unit controls the timing unit through the numerical value conversion unit. The first solenoid valve 111 is connected to a second flow regulator 205, and in this embodiment the first solenoid valve 111 is connected to the second flow regulator 205 through a flow meter 203 to adjust the flow rate of the diluent so that the flow rate is fixed against the water (diluent) pressure.
Specifically, the flow meter 203 and the first electromagnetic valve 111 are controlled by the output end of the signal identification unit, the flow meter 203 resets and starts to detect the flow rate when detecting the rising edge of the output end of the signal identification unit, the flow meter 203 sends a digital signal representing the detected flow rate to the numerical value conversion unit when detecting the falling edge, wherein the flow rate refers to the total flow rate of the first electromagnetic valve 111 from on to off, and meanwhile, when the numerical value conversion unit detects the rising edge of the output end of the signal identification unit, the working time of the dosing pump is calculated by the preset multiplication and division method according to the detected flow rate of the flow meter. The calculation is performed by using a time-flow coefficient (the coefficient already includes dimensions). Therefore, in practice, the numerical value conversion unit may be constituted by one multiplier. When the medicine spraying pump 142 pumps the medicine liquid, the liquid level fluctuates, the adding amounts of the diluent and the concentrated medicine liquid are determined by adopting the high level and the low level of the liquid level sensor, and the detection may have deviation, so that the detection is more accurate by adopting the flow meter.
And the timing unit is used for starting timing (counting down or counting forward until the timing time) by taking the numerical value output by the numerical value conversion unit as the counting time when the falling edge is detected, outputting a high level to control the dosing pump to start, and outputting a low level to close the dosing pump when the timing is finished.
In this embodiment, the controller 161 controls the three-way solenoid valve 114, the outlet of the spraying pump 142 is connected to the spraying device 191 through the three-way solenoid valve 114, and the three-way solenoid valve 114 is used for controlling the outlet of the spraying pump 142 to be connected to the spraying device 191 or flow to the first container 181. One end of the three-way electromagnetic valve 114 extends into the first container 181 through a pipeline, and a first flow regulator 204 is arranged at one end of the pipeline away from the three-way electromagnetic valve 114 to regulate the outlet flow.
After the medicine adding pump 141 finishes adding medicine, the user can send an instruction to the controller 161 to enable the controller 161 to start the medicine spraying pump 142 and switch the direction of the three-way electromagnetic valve 114 to the direction enabling the medicine liquid to flow to the first container 181, and at this time, the medicine spraying pump 142 is equivalent to circulating the medicine liquid in the first container 181. This allows the diluent and the concentrated liquid medicine to be sufficiently mixed.
In addition, the liquid inlets of the dosing pump 141 and the spraying pump 142 further include a first one-way valve 121 and a second one-way valve 122, respectively, an outlet of the first one-way valve 121 is connected with the liquid inlet of the dosing pump 141, and an outlet of the second one-way valve 122 is connected with the liquid inlet of the spraying pump 142. The inlet of the second one-way valve 122 is provided with a filter 202 to prevent the liquid medicine from having larger solids to block the pipeline.
While the preferred embodiments of the present invention have been described, the present invention is not limited to the above embodiments, and those skilled in the art can make various equivalent modifications or substitutions without departing from the spirit of the present invention, and such equivalent modifications or substitutions are intended to be included within the scope of the present invention as defined by the appended claims.
Claims (10)
1. A medicine spraying system is characterized by comprising a medicine feeding pump, a medicine spraying pump, a first container, a second container, a spraying device, a controller, a liquid level sensor and a first electromagnetic valve, wherein the controller comprises a timing unit and a signal identification unit;
the output end of the liquid level sensor is connected with the input end of the signal identification unit, and the output end of the signal identification unit is connected with the enabling end of the first electromagnetic valve so as to control the diluent to enter or stop entering the first container;
the signal identification unit control the timing unit, the output control of timing unit add the medicine pump, the output control of controller spout the medicine pump, the inlet that adds the medicine pump is arranged in drawing the liquid medicine from the second container, the liquid outlet that adds the medicine pump is used for exporting first container with the liquid medicine, the inlet that spouts the medicine pump is used for following first container draws the liquid medicine, spout the liquid outlet of medicine pump with sprinkler connects.
2. A pesticide spraying system as claimed in claim 1, wherein: the dosing pump and the pesticide spraying pump are both pneumatic pumps, and both the dosing pump and the pesticide spraying pump comprise pneumatic inlets;
the pesticide spraying system also comprises a high-pressure gas generating device, a second electromagnetic valve and a third electromagnetic valve, wherein the high-pressure gas output end of the high-pressure gas generating device is connected with the pneumatic inlet of the pesticide feeding pump through the second electromagnetic valve, and the high-pressure gas output end of the high-pressure gas generating device is connected with the pneumatic inlet of the pesticide spraying pump through the third electromagnetic valve; the output end of the controller controls the pesticide spraying pump through a third electromagnetic valve, and the output end of the timing unit controls the pesticide feeding pump through a second electromagnetic valve;
wherein, the high pressure gas refers to gas with the pressure of more than 1 atmosphere.
3. A pesticide spraying system as claimed in claim 1, wherein: the flow meter is connected with the first electromagnetic valve and used for detecting the flow of the diluent entering the first container, and the output end of the signal identification unit is connected with the control end of the flow meter;
the controller also comprises a numerical value conversion unit, the output end of the flowmeter is connected with the input end of the numerical value conversion unit, and the output end of the signal identification unit controls the timing unit through the numerical value conversion unit.
4. A pesticide spraying system as claimed in claim 1, wherein: the spraying device is characterized by further comprising a three-way electromagnetic valve, the controller controls the three-way electromagnetic valve, the liquid outlet of the spraying pump is connected with the spraying device through the three-way electromagnetic valve, and the three-way electromagnetic valve is used for controlling the spraying device or the first container to flow into which the liquid outlet of the spraying pump is connected.
5. Pesticide spraying system according to claim 4, characterized in that: one end of the three-way electromagnetic valve extends into the first container through a pipeline, and a first flow regulator is arranged at one end, far away from the three-way electromagnetic valve, of the pipeline.
6. A pesticide spraying system as claimed in claim 1, wherein: and the first electromagnetic valve is connected with a second flow regulator.
7. A pesticide spraying system as claimed in claim 1, wherein: the liquid level sensor is a float switch.
8. A pesticide spraying system as claimed in claim 1, wherein: still include first check valve and second check valve, the export of first check valve with the inlet of dosing pump is connected, the export of second check valve with the inlet of medicine spraying pump is connected.
9. A pesticide spraying system as claimed in claim 8, wherein: and a filter is arranged at the inlet of the second one-way valve.
10. A pesticide spraying system as claimed in any one of claims 1 to 9, wherein: the pressure regulating valve also comprises a first pressure regulating valve and a second pressure regulating valve;
the first pressure regulating valve is arranged between the high-pressure gas output end of the high-pressure gas generating device and the pneumatic inlet of the dosing pump and used for regulating the speed of the dosing pump;
the second pressure regulating valve is arranged between the high-pressure gas output end of the high-pressure gas generating device and the pneumatic inlet of the pesticide spraying pump and used for regulating the speed of the pesticide spraying pump.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020087258.0U CN211932220U (en) | 2020-01-15 | 2020-01-15 | Pesticide spraying system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020087258.0U CN211932220U (en) | 2020-01-15 | 2020-01-15 | Pesticide spraying system |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN211932220U true CN211932220U (en) | 2020-11-17 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202020087258.0U Active CN211932220U (en) | 2020-01-15 | 2020-01-15 | Pesticide spraying system |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN211932220U (en) |
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2020
- 2020-01-15 CN CN202020087258.0U patent/CN211932220U/en active Active
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