CN101987315B - Synchronous injection-type medicine mixer for spraying machine - Google Patents

Abstract

A synchronous injection type drug mixer for a sprayer, including an engine, the engine drives a spray pump, the spray pump has a water suction port and a water outlet, the water suction port is connected to a water absorption part, the water outlet is connected to a spray pipe and a spray gun, and the water absorption part includes a water suction pipe, and is characterized in that A mixing tube is connected to the water suction pipe, and the mixing tube includes a water inlet, a suction chamber, a mixing chamber and a liquid discharge port. A jet nozzle with a conical inner hole is installed in the water inlet. There is a drug suction port in the mixing pipe wall at the chamber, a miniature electromagnetic injection pump driven by the synchronous signal of the engine, the suction port of the electromagnetic injection pump absorbs the pesticide in the mother liquor container, and the drug discharge port of the electromagnetic injection pump is connected to the mixing tube to absorb the drug mouth.

Description

Synchronous injection mixer for sprayer

technical field

The invention relates to a drug mixer for mixing water and pesticides for a sprayer, in particular to a synchronous injection type drug mixer for a sprayer, which belongs to agricultural plant protection machinery.

Background technique

The sprayer is a commonly used agricultural plant protection machine. When the sprayer is used, it mixes a certain proportion of pesticides with water and sprays them out, so there is a process of mixing pesticides and water. The most common traditional operation is pre-mixed spraying, which is to mix the pesticide to be sprayed with water in a large container. When working in paddy fields, moving the large container is labor-intensive, and the operator is exposed to pesticides. The probability is also high, and it needs to be operated by a special person, and the labor cost is high. Therefore, people have developed relevant drug mixers, such as Chinese patent ZL00267051.8, which is called "positive pressure drug mixer", and this patent has designed a drug mixer throat with water inlet and water outlet. A liquid inlet hole is connected between the nozzles, and the liquid inlet hole is connected with the drug storage chamber of the liquid medicine tank. The isolated pressure plate in the liquid medicine tank is divided into a booster chamber, and the movement of the pressure plate changes the volume of the booster chamber and the drug storage chamber. And the pressurized chamber communicates with the water inlet through the pressurized pipe, and the water inlet communicates with the main pipe to connect with the water pump. When the water pump is working, water is supplied to the throat of the drug mixer, and at the same time, water is supplied to the pressurized chamber through the pressurized pipe, so that the pressure of the drug storage chamber of the liquid medicine tank is changed, so that the pesticide flows to the throat of the drug mixer and is evenly mixed with water. After mixing, it is sent to the spray gun. The positive pressure drug mixer of this patent is a kind of water mixing drug, but it failed to explain the specific product structure of the positive pressure drug addition. The speed of the engine is synchronized, so it is difficult to solve the problem of the mixing ratio of the spray volume at different speeds. Another example is Chinese Patent No. ZL200820043764.9, which is named "Pipeline Mixer". This patented technology uses the pressure difference between the inlet and outlet and the force of the spring to control the output of the liquid medicine. Not only the structure is complicated, but also the reliability is affected. Influenced by many factors.

Contents of the invention

The purpose of the present invention is to provide a pump that uses the driving signal of the engine to make the pesticide mother liquid injection pump work, the output of pesticide is reliable, the amount is accurate, the labor intensity of mixing medicine is reduced, the cost is saved, the mixing medicine is accurate and the ratio is good, and the use of pesticide on the sprayer is reduced. Corrosion of the water-passing parts of the pump improves the service life of the sprayer, reduces the harm of pesticides to the human body, and is beneficial to the health of the operator. A synchronous injection mixer for sprayers.

The technical scheme of the synchronous injection type drug mixer for the sprayer of the present invention is: comprising an engine, the engine drives the spray pump, the spray pump has a water suction port and a water outlet, the water suction port is connected to the water absorption part, the water outlet is connected to the nozzle pipe and the spray gun, and the water absorption part includes The water suction pipe is characterized in that a mixing pipe is connected to the water suction pipe, and the mixing pipe includes a water inlet, a suction chamber, a mixing chamber and a liquid discharge port, and a jet nozzle with a conical inner hole is installed in the water inlet, and the jet nozzle opens at A suction chamber, and a drug suction port is made in the wall of the mixing pipe at the suction chamber, a miniature electromagnetic injection pump driven by the synchronous signal of the engine, the suction port of the electromagnetic injection pump sucks the pesticide in the mother liquor container, and the electromagnetic injection pump discharges the pesticide The port is connected to the suction port of the mixing tube.

The synchronous injection type drug mixer for sprayer of the present invention is driven by an engine (comprising a gasoline engine or a diesel engine) to a spray pump (comprising a plunger pump or a piston pump), and the mixing pipe is connected in the water suction pipe of the water-absorbing part of the spray pump, and the spray pump is driven by the engine The given synchronous signal drives a miniature synchronous electromagnetic injection pump to absorb the pesticide mother liquor, and the pesticide mother liquor is injected into the mixing tube and sprayed out after mixing the medicine and water through the spray pump. When working, first the engine (gasoline or diesel engine) starts to generate a synchronous drive signal, and the drive signal is given to the miniature synchronous electromagnetic injection pump. The specific structures of the described gasoline engine or diesel engine and the miniature synchronous electromagnetic injection pump all belong to the prior art. It can be purchased in the market. Regarding the synchronous signal given after the engine starts, that is, the engine drives the plunger pump to generate vacuum suction on the mixing tube. The drug suction port opened on the mixing tube is affected by the vacuum suction. The electromagnetic injection pump It starts automatically, and the electromagnetic injection pump sucks out the pesticide in the mother liquid container after it works. The designed suction of the pump can reach 2 meters. For the water absorption of the pump, the mother liquor is mixed with water and enters the spray pump through the mixing chamber to be pressurized and sprayed out through the spray gun. This technical scheme has the following advantages: one, when spraying the ratio 1: 500 times of pesticide regulation, traditional operation is that 500g pesticide (mother solution) is watered 250kg, will use a very big bucket and move very difficult in the field, Especially the paddy fields in the south; and this program only needs to add 2.5kg of pesticide (mother liquor) to water, i.e. 1:5, with the design flow rate of the spray pump being 0.1L/MIN, and the spraying volume of the spray gun being 10L/MIN, the ratio is 1:100, when the two are multiplied, 1:500 times of 10L liquid medicine is sprayed out every minute, which greatly reduces the labor intensity of mixing medicine and makes it easy to move. 2. Driven by the synchronous (12V electric signal synchronous with the rotational speed, taken from the magneto coil of the engine) signal output by the engine (gasoline engine or diesel engine), the electromagnetic injection pump outputs the mother liquor that changes in the same proportion as the engine rotational speed; when the engine rotational speed is at From 2000 to 3600RPM, the output liquid volume change of the electromagnetic injection pump is completely positively correlated with the rotational speed, thus ensuring that the whole machine can mix and spray medicines in an accurate ratio. 3. The miniature synchronous electromagnetic injection pump is driven by the synchronous signal given by the engine. It does not need to be supervised by people. There is no pressure loss during work. It only uses a small amount of mother liquor to spray water in a fixed proportion by absorbing the water in the field, and it can be added to the existing sprayer. A small amount of cost saves money on investment. 4. The mother liquor injected by the electromagnetic injection pump passes through the mixing pipe into the water suction pipe, which can reduce the corrosion of pesticides on the water-passing parts of the sprayer pump and prolong the service life of the sprayer. 5. Avoid direct contact between the human body and pesticides, reduce hazards, and benefit the health of operators.

The synchronous injection type drug mixer used in the sprayer of the present invention has a sealing step formed on the outer wall of the jet nozzle, and a seal is installed at the contact between the sealing step and the mixing tube. Make the mixing tube and jet nozzle get sealing fit. A sealing ring is installed at the joint between the mouth of the jet nozzle and the water suction pipe. Improve the sealing of the connection between the suction pipe and the mixing pipe. A mixed liquid inlet is formed at the junction of the opening of the jet nozzle and the liquid suction port. The water and the agricultural solution are pre-mixed. Its described discharge port is the expansion port of trumpet shape. It is beneficial for the mixed liquid to be injected into the plunger pump.

Description of drawings

Fig. 1 is a schematic structural view of a synchronous injection type drug mixer for a sprayer of the present invention;

Figure 2 is a schematic diagram of the structure of the mixing tube.

Detailed ways

The invention discloses a synchronous injection type drug mixer for a sprayer, as shown in Figure 1, comprising an engine 1, i.e. a gasoline engine or a diesel engine, which can drive a spray pump 2 through a belt, and the spray pump includes a plunger Pump or piston pump, spray pump has water suction port and water outlet, and water suction port is connected with water absorption part 4, and water absorption part includes water suction pipe, and water outlet is connected with spray pipe, spray gun 3 or spray rod, relies on the signal that the magneto coil of engine 1 gives (Electric power) controls and drives a synchronous miniature electromagnetic injection pump 5, the operating speed/flow rate of the electromagnetic injection pump 5 is positively correlated with the rotational speed of the engine, and the electromagnetic injection pump 5 is used for mixing medicine on the sprayer. How to mix medicine: It is characterized in that the water suction pipe of the water absorption part 4 is connected with the mixing pipe 7, and the mixing pipe 7 (as shown in Figure 2) includes a water inlet 71, a water suction chamber 72, a mixing chamber 75 and a liquid discharge port 76, Install the jet nozzle 8 in the water inlet 71, the inner hole of the jet nozzle 8 is conical, a step 81 is formed between the outer wall of the jet nozzle 8 and the water inlet 71, and a seal 82 is installed, and connected by a thread 83, the jet nozzle The tapered outer wall of 8 forms suction chamber 72 in the mixing tube 7, and is shaped on the drug suction port 73 in the mixing tube 7 wall at the suction room place, produces mixing tube inlet 74, and above-mentioned one is given by the magneto coil of motor. The drug discharge port of the miniature electromagnetic injection pump 5 driven by the synchronous signal control is connected to the drug suction port 73 of the mixing tube. The discharge port 76 of the pesticide enters the spray pump 2 after being mixed with water. The present invention is an injection-type drug mixing technology with a miniature synchronous electromagnetic pump driven by an engine. It is driven by the synchronous signal given by the engine 1. It does not require human supervision and operation, and there is no pressure loss. Only a small amount of mother liquor is used to absorb the field. The water is sprayed in a fixed proportion, which solves the labor of one person and only increases the cost on the traditional sprayer to control it within 100 yuan. The synchronous micro-electromagnetic injection pump 5 is driven by the synchronous (12V electrical signal synchronous with the rotational speed, taken from the magneto coil of the engine) signal output by the engine, and outputs the mother liquor that changes in the same proportion as the engine speed; when the engine speed is 2000 to 3600RPM , the change of the output water volume of the electromagnetic pump is completely positively correlated with the rotational speed. This ensures that the whole machine can mix and spray medicines in a precise ratio. When this sprayer is working, first after engine (gasoline engine/diesel engine) 1 starts, synchronous driving signal is produced, and the driving part synchronous miniature electromagnetic injection pump 5, described gasoline engine or diesel engine and the specific structure of miniature synchronous electromagnetic injection pump are all It belongs to the existing technology and can be purchased in the market. Regarding the synchronous signal given after the engine starts, that is, the engine drives the plunger pump to generate vacuum suction to the mixing tube, and the drug suction port opened on the mixing tube is subjected to vacuum suction. Affected, the electromagnetic injection pump starts automatically. After the electromagnetic injection pump works, the pesticide in the mother liquid container is sucked out. The design suction of the pump can reach 2 meters, and the water is injected into the suction pipe of the column/piston pump driven by the engine at an outlet pressure of about 0.15Mpa; The working pressure of the water suction pipe is a negative pressure close to 0 pressure, and the flow rate is the water absorption capacity of the pump; the mother liquor is mixed with the water absorption of the column/piston pump, pressurized, and sprayed out through the spray gun 3 or the spray bar. Spraying effect If the ratio of spraying pesticides is 1:500 times, the traditional operation is to mix 500g of pesticides with 250kg of water, which requires a large bucket and it is difficult to move in the field, especially in the paddy fields in the south; In this plan, only 2.5kg of the stock solution is mixed with water, which is 1:5; the design flow rate of the mixing pump is 0.1L/MIN; the spray gun spray volume is 10L/min, and the ratio is 1:100; There is 1:500 times of 10L liquid spray; it can be seen that the labor intensity of drug mixing is greatly reduced. The outer wall of the jet nozzle 8 is formed with a sealing step 81 , and a seal 82 is installed at the contact between the sealing step 81 and the mixing tube 7 . Make the mixing tube 7 and the jet nozzle 8 obtain sealing fit. A sealing ring 83 is installed at the junction of the mouth of its described jet nozzle 8 and the water suction pipe. Improve the connection tightness between the suction pipe and the mixing pipe 7. A mixed liquid inlet 74 is formed at the junction of the opening of the jet nozzle 8 and the liquid suction port 73 . The water and the agricultural solution are pre-mixed. Its described drain port 76 is a trumpet-shaped expansion port. It is beneficial for the mixed liquid to be injected into the plunger pump.

Claims (1)

1. synchronous injection-type medicine mixer for spraying machine, comprise engine (1), driven by engine atomizing pump (2), atomizing pump has water sucking mouth and delivery port, water sucking mouth connects water sucting part (4), delivery port connecting spray nozzle, spray gun (3), water sucting part (4) comprises suction hose, it is characterized in that in suction hose, connecting mixing tube (7), described mixing tube (7) comprises water inlet (71), suction chamber (72), hybrid chamber (75) and leakage fluid dram (76), in water inlet (71), install endoporus is conical jet mouth (8), jet mouth (8) is opened on suction chamber (72), and liquid sucting port (73) is shaped with in mixing tube (7) wall at suction chamber place, a micro electromagnetic injection pump (5) driven by engine synchronization signal, electromagnetism injection pump liquid sucting port inhales mother liquor vessel (6) Pesticides, electromagnetism injection pump drug row mouth connects mixing tube liquid sucting port (73), described jet mouth (8) outer wall is shaped with sealed step (81), sealed step (81) installs seal (82) with the contact position of mixing tube (7), sealing ring (83) is installed in the described oral area of jet mouth (8) and the junction of suction hose, the opening of described jet mouth (8) and the intersection of mixing tube liquid sucting port (73) form mixed liquor import (74), described leakage fluid dram (76) is flaring extension mouth.