Intelligent anti-blocking solid particulate matter handheld quantitative pesticide applying gun

Abstract

The invention discloses an intelligent anti-blocking solid particle handheld quantitative pesticide application gun which comprises a pesticide storage barrel, a holding handle, a rotary quantitative pesticide feeder, a dredging mechanism and a controller, and a pesticide feeder shell is provided with a sensor used for detecting whether blockage exists in a pesticide discharging pipe, a discharging channel and a quantitative pesticide storage hole located in the discharging channel or not. The dredging mechanism can dredge the medicine discharging pipe, the discharging channel and the quantitative medicine storage holes located in the discharging channel. By the adoption of the structure, after pesticide is applied every time, whether blockage occurs or not can be detected through the sensor, if the blockage condition is detected, automatic dredging can be conducted through the dredging mechanism, manual intervention is not needed in the whole process, the pesticide applying gun does not need to be disassembled and assembled, the working efficiency and the using feeling are improved, long-term stable operation of the pesticide applying gun can be guaranteed, and the labor intensity of workers is relieved. And meanwhile, the problem of insufficient pesticide application amount caused by partial blockage can be avoided, so that the control precision of the single pesticide application amount is greatly improved.

Description

Technical Field

[0001] The present invention relates to the technical field of agricultural machinery, and particularly relates to an intelligent anti-blocking handheld quantitative medicine applicator for solid particles. Background Art

[0002] With the development of crop planting technology, in the process of planting crops, in order to prevent pests and diseases or promote growth and development, solid granular pesticides or solid granular fertilizers are first sprinkled near the roots of the crops, and then covered with soil.

[0003] Currently, the sprinkling of solid granular pesticides or solid granular fertilizers is usually completed manually. Each time a hole is sprinkled, one needs to bend down once, which is not only very laborious but also harmful to health in the long run. Therefore, a special handheld sprinkler has emerged. Each time it is pressed, the partition controlling the on-off of the conveying channel reciprocates once, thereby realizing the sprinkling of solid granular pesticides or solid granular fertilizers. However, in the actual use process, it is found that for the existing such handheld sprinkler, controlling the sprinkling amount by the reciprocating movement of the partition is not accurate enough. Too much or too little sprinkling amount may cause greater side effects and cannot meet the requirements of precision agriculture planting. Moreover, since the partition controlling the on-off is arranged at the upper part of the handheld sprinkler, the solid particles need to pass through a very long channel to fall into the hole. This may not only cause some solid particles to scatter outside the hole due to insufficient waiting time of the operator, resulting in insufficient sprinkling amount, but also the possibility of the long channel adhering to solid particles is relatively large, leading to some solid particles sticking to the wall, which will also cause the problem of insufficient sprinkling amount.

[0004] Therefore, referring to the Chinese utility model patent with the publication number CN219741220U, the applicant of the present application has designed an intelligent solid particle handheld quantitative sprinkler. Through the control of the volume of the quantitative medicine storage hole, the solid granular pesticides or fertilizers in the medicine storage cylinder are first accurately and quantitatively temporarily stored in the quantitative medicine storage hole, and then by pulling the rotating block to make it rotate, the solid granular pesticides or fertilizers in the quantitative medicine storage hole are all put into the hole through the medicine discharging pipe. This not only realizes the accurate and quantitative sprinkling of solid granular pesticides or fertilizers, meeting the requirements of precision agriculture planting, but also because the sprinkling mechanism is located at the lower end of the long medicine storage cylinder, the medicine discharging pipe can be designed very short, greatly shortening the free-fall travel of the solid granular pesticides or fertilizers after leaving the quantitative medicine storage hole, improving the sprinkling speed, thus being able to avoid the problem that some solid particles scatter outside the hole due to insufficient waiting time of the operator, and also greatly reducing the risk of solid particles sticking to the wall, further ensuring the accuracy of the sprinkling amount of solid granular pesticides or fertilizers.

[0005] However, during the long-term use, the applicant of the present application has found that not only are solid particulate fertilizers or pesticides extremely prone to moisture absorption, resulting in clogging problems in the quantitative medicine storage holes, but also due to the high viscosity of the soil in the use environment, the medicine discharge pipe is also very likely to become clogged. Therefore, the clogging problems of the quantitative medicine storage holes and the medicine discharge pipe together lead to frequent disassembly, assembly and manual dredging of the medicine applicator during use, which not only affects the operation efficiency but also the user experience.

[0006] Solving the above problems has become an urgent task. Summary of the Invention

[0007] In view of this, the present invention provides an intelligent anti-clogging solid particulate hand-held quantitative medicine applicator gun.

[0008] The technical solution is as follows:

[0009] A first aspect of the present application relates to an intelligent anti-clogging solid particulate hand-held quantitative medicine applicator gun, including a medicine storage cylinder having a hollow cylindrical structure, and a holding handle and a rotary quantitative medicine feeder respectively installed at the upper and lower ends of the medicine storage cylinder. A medicine application switch is provided on the holding handle. The rotary quantitative medicine feeder includes a feeder housing fixedly installed at the lower end of the medicine storage cylinder, a medicine delivery turntable rotatably installed in the feeder housing, a turntable control assembly for driving the medicine delivery turntable to rotate, and a medicine discharge pipe installed at the lower part of the medicine delivery turntable. At least one quantitative medicine storage hole is provided on the medicine delivery turntable. The feeder housing has a feeding groove communicating with the lower end of the medicine storage cylinder and a discharging channel communicating with the upper end of the medicine discharge pipe. The turntable control assembly can make each quantitative medicine storage hole first complete storage in the feeding groove and then move to the discharging channel one by one to discharge medicine to the medicine discharge pipe. A sensor for detecting whether there is a blockage in the medicine discharge pipe, the discharging channel and the quantitative medicine storage hole located in the discharging channel is installed on the feeder housing;

[0010] It further includes a dredging mechanism and a controller. The dredging mechanism can dredge the medicine discharge pipe, the discharging channel and the quantitative medicine storage hole located in the discharging channel. The controller can not only control the dredging mechanism according to the detection result of the sensor, but also control the turntable control assembly according to the start signal of the medicine application switch.

[0011] By using the above intelligent anti-clogging solid particulate hand-held quantitative medicine applicator gun, after each medicine application, it can detect whether there is a clogging problem in the quantitative medicine storage hole, the discharging channel and the medicine discharge pipe through the sensor. If a clogging situation is detected, it can be automatically dredged through the dredging mechanism. The whole process requires neither manual intervention nor disassembly and assembly of the medicine applicator gun, improving the operation efficiency and user experience. Moreover, it can ensure the long-term stable operation of the medicine applicator gun, and at the same time, it can also avoid the occurrence of problems such as insufficient medicine application amount caused by partial blockage, thereby greatly improving the control accuracy of the single-dose medicine application amount.

[0012] In some embodiments, the rotation axis of the medicine delivery turntable coincides with the central axis of the medicine storage cylinder, and a plurality of the quantitative medicine storage holes are formed in the medicine delivery turntable and are evenly distributed along its rotation axis;

[0013] When any one of the quantitative medicine storage holes is located in the discharge channel, the remaining quantitative medicine storage holes are all located in the feeding groove.

[0014] In some embodiments, a ring of driven teeth is formed on the outer peripheral surface of the medicine delivery turntable. The turntable control assembly includes a servo motor installed on the medicine delivery device housing and a driving gear synchronously rotated and sleeved on the servo motor shaft of the servo motor, and the driving gear meshes with the driven teeth.

[0015] In some embodiments, the dredging mechanism includes a gas storage cylinder joint installed at the top of the holding handle. An air delivery channel is formed in the gas storage cylinder joint. One end of the air delivery channel is communicated with a high-pressure gas storage cylinder, and the other end is communicated with an exhaust nozzle. An air inlet nozzle communicated with it is installed at the upper end of the discharge channel. The exhaust nozzle is communicated with the air inlet nozzle through an air delivery pipe. A plug for controlling the on-off of the air delivery channel and a gas cut-off holding device for making the plug have a tendency to block the air delivery channel are movably installed in the air delivery channel. A ventilation control device capable of making the plug no longer block the air delivery channel is installed in the holding handle.

[0016] In some embodiments, a plug guiding hole with a reduced diameter is formed at one end of the air delivery channel far from the high-pressure gas storage cylinder. One end of the plug guiding hole far from the high-pressure gas storage cylinder is communicated with the inside of the holding handle. The hole wall of the plug guiding hole is communicated with the air inlet nozzle through a branch air duct. A first conical surface with a radius gradually decreasing towards the plug guiding hole is formed between the air delivery channel and the plug guiding hole. The plug includes a coaxially arranged plug body and a sliding fit rod. The plug body is a cylindrical structure with a diameter smaller than that of the air delivery channel. The diameter of the sliding fit rod is smaller than that of the plug body and is slidably fitted with the plug guiding hole. One end cross section of the plug body close to the sliding fit rod is a second conical surface capable of cooperating with the first conical surface. An air seal is arranged between one end of the plug guiding hole close to the holding handle and the sliding fit rod. The sliding fit rod extends out of the plug guiding hole at one end far from the plug body;

[0017] The gas cut-off holding device includes a spring support seat fixedly installed at one end of the air delivery channel close to the high-pressure gas storage cylinder and a compression spring elastically supported between the adjacent end faces of the spring support seat and the plug body. A ventilation hole communicating the high-pressure gas storage cylinder and the air delivery channel is formed in the spring support seat;

[0018] The ventilation control device is an electromagnetic push rod, and the outer end face of the push rod of the electromagnetic push rod faces the end face of one end of the sliding fit rod extending out of the plug guiding hole.

[0019] In some embodiments, an anti-blocking sleeve is installed at the lower end of the medicine discharging pipe. The anti-blocking sleeve includes a mounting portion sleeved on the lower end of the medicine discharging pipe and a flared opening integrally formed at the lower end of the mounting portion. The flared opening is a conical surface structure with a gradually increasing diameter from top to bottom.

[0020] In some embodiments, the controller includes:

[0021] MCU;

[0022] A power supply module for supplying power to the MCU;

[0023] A blanking execution module for sending the signal sent by the medicine application switch to the MCU and controlling the turntable control assembly according to the control instruction sent by the MCU;

[0024] A blanking detection module for controlling the sensor according to the control instruction sent by the MCU and then sending the signal returned by the sensor to the MCU;

[0025] A dredging control module for controlling the dredging mechanism according to the control instruction sent by the MCU.

[0026] In some embodiments, the power supply module includes a first-stage step-down circuit and a second-stage step-down circuit connected in sequence. The input end of the first-stage step-down circuit obtains the input power supply, and the output end of the second-stage step-down circuit outputs the working voltage to the MCU;

[0027] The blanking execution module includes a switch circuit and a turntable driving circuit. The switch circuit is provided with a wiring terminal P1 connected to the medicine application switch and a wiring terminal P2 connected to the MCU. The pin 1 of the wiring terminal P1 is connected to the input power supply, the pins 2 and 3 of the wiring terminal P1 are both grounded, the pin 4 of the wiring terminal P1 is connected to the pin 2 of the wiring terminal P2, the common end of the pin 5 of the wiring terminal P1 and the pin 1 of the wiring terminal P2 is grounded, the pin 6 of the wiring terminal P1 is connected to the OUT end of the medicine application switch. The turntable driving circuit includes a wiring terminal H2 connected to the turntable control assembly. The pin 1 of this wiring terminal H2 is connected to the output end of the second-stage step-down circuit, and this pin 1 is also grounded through a series capacitor C14. The pin 2 of the wiring terminal H2 is connected to the PWM_DJ end of the MCU, and the pin 3 of the wiring terminal H2 is grounded;

[0028] The blanking detection module is provided with a wiring terminal H3 connected to the sensor. The pin 1 of the wiring terminal H3 is connected to the input power supply, and this pin 1 is also grounded through a series capacitor C15. The pin 2 of the wiring terminal H3 is connected to the input power supply through a series resistor R20, and this pin 2 is also connected to the LL_CHK end of the MCU. The pin 3 of the wiring terminal H3 is grounded;

[0029] The dredging control module is provided with a wiring terminal P3 connected to the dredging mechanism. The pin 2 of the wiring terminal P3 is grounded. The pin 1 of the wiring terminal P3 is connected to the normally open end of the relay RLY1. The common end of the relay RLY1 is connected to the output end of the first-stage buck circuit. The voltage input end of the relay RLY1 is connected to the output end of the first-stage buck circuit. The control end of the relay RLY1 is connected to the collector of the NPN transistor Q1. The voltage input end of the relay RLY1 is connected to the cathode of the switching diode D1. The anode of the switching diode D1 is connected to the collector of the NPN transistor Q1. The emitter of the NPN transistor Q1 is grounded. The base of the NPN transistor Q1 is connected to the DC_CTRL terminal of the MCU after being connected in series with the resistor R19, and this base is also connected to the ground after being connected in series with the resistor R18.

[0030] In some embodiments, the controller further includes a wireless communication module. This wireless communication module is provided with a communication chip U2. The reset pin RST of the communication chip U2 is connected to the output end of the power supply module after being connected in series with the resistor R10. This reset pin RST is also connected to one end of the short connection point U4. The other end of the short connection point U4 is grounded. The enable pin EN of the communication chip U2 is connected to the output end of the power supply module after being connected in series with the resistor R5. The power input end VCC of the communication chip U2 is connected to the output end of the power supply module. The ground terminal GND of the communication chip U2 is grounded. The GPIO15 pin of the communication chip U2 is connected to the ground after being connected in series with the resistor R12. The transmitting end TXD0 and the receiving end RXD0 of the communication chip U2 are respectively connected to the UART2RX end and the UART2TX end of the MCU. The GPIO0 pin of the communication chip U2 is connected to the output end of the power supply module after being connected in series with the resistor R13, and this GPIO0 pin is also connected to the ground after being connected in series with the switch SW4.

[0031] In some embodiments, the controller further includes a USB communication module. This USB communication module is provided with a USB communication chip USB1. Both VBUS pins of the USB communication chip USB1 are connected to the input power supply. Both ground terminals of the USB communication chip USB1 are grounded. These two ground terminals are also connected to the CC1 pin of the USB communication chip USB1 after being connected in series with the resistor R16. These two ground terminals are also connected to the CC2 pin of the USB communication chip USB1 after being connected in series with the resistor R17. Both SHELL pins of the USB communication chip USB1 are grounded. Description of the Drawings

[0032] Figure 1 is a schematic structural diagram of the present invention;

[0033] Figure 2 is a cross-sectional view of one position of the present invention when the dredging mechanism is not started;

[0034] Figure 3A cross-sectional view of one position of the present invention when the dredging mechanism is started;

[0035] Figure 4 A cross-sectional view of another position of the present invention when the dredging mechanism is not started;

[0036] Figure 5 A schematic diagram of the main structure of the turntable control component;

[0037] Figure 6 A circuit diagram of the MCU;

[0038] Figure 7 A circuit diagram of the first-stage step-down circuit;

[0039] Figure 8 A circuit diagram of the second-stage step-down circuit;

[0040] Figure 9 A circuit diagram of the switch circuit;

[0041] Figure 10 A circuit diagram of the turntable drive circuit;

[0042] Figure 11 A circuit diagram of the blanking detection module;

[0043] Figure 12 A circuit diagram of the dredging control module;

[0044] Figure 13 A circuit diagram of the wireless communication module;

[0045] Figure 14 A circuit diagram of the USB communication module. Specific embodiments

[0046] The present invention will be further described below in conjunction with embodiments and the accompanying drawings.

[0047] As Figures 1 - 5 shown, an intelligent anti-blocking solid particulate matter hand-held quantitative medicine applicator mainly includes a medicine storage cylinder 1, a holding handle 2, a rotary quantitative medicine dispenser 3, a dredging mechanism 4 and a controller 5.

[0048] Among them, the medicine storage cylinder 1 has a hollow cylindrical structure extending in the up and down direction. In this embodiment, the medicine storage cylinder 1 preferably adopts a cylindrical structure, which is easy to process and assemble. A holding handle 2 is installed at the upper end of the medicine storage cylinder 1 to facilitate holding and improve the convenience of use. A rotary quantitative medicine dispenser 3 is installed at the lower end of the medicine storage cylinder 1. And a medicine application switch 21 is provided on the holding handle 2. Each time the medicine application switch 21 is pressed, the rotary quantitative medicine dispenser 3 outputs solid granular fertilizer or pesticide once.

[0049] The rotary metering medicine dispenser 3 includes a dispenser housing 31 fixedly installed at the lower end of the medicine storage cylinder 1, a medicine dispensing turntable 32 rotatably installed in the dispenser housing 31, a turntable control assembly 33 for driving the rotation of the medicine dispensing turntable 32, and a medicine discharging pipe 34 installed at the lower part of the medicine dispensing turntable 32. At least one metering medicine storage hole 321 is formed in the medicine dispensing turntable 32. The dispenser housing 31 has a feeding groove 311 communicating with the lower end of the medicine storage cylinder 1 and a discharging passage 312 communicating with the upper end of the medicine discharging pipe 34. The turntable control assembly 33 can make each metering medicine storage hole 321 first complete the storage of medicine in the feeding groove 311 and then move to the discharging passage 312 one by one to discharge medicine to the medicine discharging pipe 34.

[0050] Specifically, each time the medicine application switch 21 is pressed, the turntable control assembly 33 rotates the medicine dispensing turntable 32 by a set angle, so that a metering medicine storage hole 321 filled with solid granular fertilizer or pesticide in the feeding groove 311 moves to the discharging passage 312. The solid granular fertilizer or pesticide falls into the medicine discharging pipe 34 under the action of its own gravity and finally falls freely to the designated position (usually a pit) on the land.

[0051] Therefore, through the control of the volume of the metering medicine storage hole 321, the solid granular pesticide or fertilizer in the medicine storage cylinder 1 is first accurately metered and temporarily stored in the metering medicine storage hole 311, and then by pulling the rotating block 31 to make it rotate, all the solid granular pesticide or fertilizer in the metering medicine storage hole 311 is put into the designated position (usually a pit) on the land through the medicine discharging pipe 34. This not only realizes the accurate metering of the application of solid granular pesticide or fertilizer and meets the requirements of fine agricultural planting, but also because the application mechanism is located at the lower end of the long medicine storage cylinder 1, the medicine discharging pipe 34 can be designed to be very short, greatly shortening the free-fall travel of the solid granular pesticide or fertilizer after leaving the metering medicine storage hole 311, improving the application speed. Thus, it can not only avoid the problem that some solid particles are scattered outside the pit due to insufficient waiting time of the operator, but also greatly reduce the risk of the solid particles sticking to the wall, ensuring the accuracy of the application amount of the solid granular pesticide or fertilizer.

[0052] In this embodiment, a sensor 35 for detecting whether there is a blockage in the medicine discharging pipe 34, the discharging passage 312, and the metering medicine storage hole 321 located in the discharging passage 312 is installed on the dispenser housing 31; the dredging mechanism 4 can dredge the medicine discharging pipe 34, the discharging passage 312, and the metering medicine storage hole 321 located in the discharging passage 312; the controller 5 can not only control the dredging mechanism 4 according to the detection result of the sensor 35, but also control the turntable control assembly 33 according to the start signal of the medicine application switch 21.

[0053] Therefore, after each application of the medicine, the sensor 35 detects whether blockage occurs in the quantitative medicine storage hole 321, the discharge channel 312, and the medicine discharge pipe 34. If blockage is detected, the automatic dredging can be carried out through the dredging mechanism 4. The whole process requires neither manual intervention nor disassembly and assembly of the medicine applicator gun, improving the operation efficiency and user experience. Moreover, it can ensure the long-term stable operation of the medicine applicator gun, and at the same time, it can also avoid the occurrence of the problem of insufficient medicine application amount caused by partial blockage, thus greatly improving the control accuracy of the single-dose medicine application amount.

[0054] Furthermore, the rotation axis of the medicine delivery turntable 32 coincides with the central axis of the medicine storage cylinder 1. A plurality of quantitative medicine storage holes 321 are formed on the medicine delivery turntable 32 and are evenly distributed along its rotation axis. When any one of the quantitative medicine storage holes 321 is located in the discharge channel 312, the remaining quantitative medicine storage holes 321 are all located in the feed groove 311, so that each quantitative medicine storage hole 321 remains in the feed groove 311 at multiple rotation positions, ensuring that each quantitative medicine storage hole 321 can be filled with solid pesticides or fertilizers in the feed groove 311.

[0055] Please refer to Figure 3 and Figure 4 , the sensor 35 is arranged at the upper end of the discharge channel 312, and the detection direction of the sensor 35 is downward vertically. The lower end of the discharge channel 312 is communicated with the upper end of the medicine discharge pipe 34. When the quantitative medicine storage hole 321 rotates to the discharge channel 312, the quantitative medicine storage hole 321 is located in the middle of the discharge channel 312. Among them, the sensor 35 can adopt a capacitive proximity switch, which can accurately detect whether the quantitative medicine storage hole 321 is blocked. Since the discharge channel 312 and the medicine discharge pipe 34 are coaxially arranged, the sensor 35 can also adopt a laser sensor. The detection distance of the laser sensor is far, and it can identify whether blockage occurs in the discharge channel 312, the quantitative medicine storage hole 321, and the medicine discharge pipe 34 from top to bottom.

[0056] Please refer to Figure 4 and Figure 5 , a ring of driven teeth 322 is formed on the outer peripheral surface of the medicine delivery turntable 32. The turntable control assembly 33 includes a servo motor 331 installed on the medicine applicator housing 31 and a driving gear 332 synchronously rotated and sleeved on the servo shaft of the servo motor 331. The driving gear 332 meshes with the driven teeth 322. The servo shaft of the servo motor 331 drives the driving gear 332 to rotate synchronously with it. The driving gear 332 drives the medicine delivery turntable 32 to rotate through the driven teeth 322, with high control accuracy and simple and reliable structure.

[0057] During the test, the lower end of the medicine discharge pipe 34 is very easy to be blocked by soil, resulting in the inability to sprinkle solid granular pesticides or fertilizers. Therefore, please refer to Figure 5, a clogging prevention sleeve 36 is installed at the lower end of the medicine discharging pipe 34. The clogging prevention sleeve 36 includes a mounting portion 361 sleeved on the lower end of the medicine discharging pipe 34 and a flared mouth 362 integrally formed at the lower end of the mounting portion 361. The flared mouth 362 is a conical surface structure with a gradually increasing diameter from top to bottom. Through the open design of the flared mouth 362, it can effectively avoid soil clogging. Based on the self-gravity of the soil and the inner wall of the conical surface of the flared mouth 362, the contacted soil hardly adheres to the inner wall of the flared mouth 362. Even if there is a little adhesion, since the diameter of the flared mouth 362 is much larger than the diameter of the medicine discharging pipe 34, it will not affect the downward material falling of the medicine discharging pipe 34 at all. It is simple and reliable, and extremely ingenious.

[0058] In this embodiment, the mounting portion 361 is a cylindrical structure, and the mounting portion 361 is detachably mounted at the lower end of the medicine discharging pipe 34 for easy disassembly, cleaning and maintenance.

[0059] Please refer to Figure 2 , a medicine discharging opening 11 is provided on the outer peripheral surface of the upper end of the medicine storage cylinder 1 to facilitate loading solid granular pesticides or fertilizers into the medicine storage cylinder 1 without removing the holding handle 2, which is very convenient.

[0060] Please refer to Figure 2 and Figure 3 , the dredging mechanism 4 includes a gas storage cylinder joint 41 installed at the top of the holding handle 2. An air delivery channel 411 is provided on the gas storage cylinder joint 41. One end of the air delivery channel 411 is communicated with a high-pressure gas storage cylinder 43, and the other end is communicated with an exhaust nozzle 44. An air inlet nozzle 45 communicated therewith is installed at the upper end of the discharge channel 312. The exhaust nozzle 44 is communicated with the air inlet nozzle 45 through an air delivery pipe 46. A plug 47 for controlling the on-off of the air delivery channel 411 and a gas cut-off holding device 48 for making the plug 47 have a tendency to block the air delivery channel 411 are movably installed in the air delivery channel 411. A ventilation control device 49 capable of making the plug 47 no longer block the air delivery channel 411 is installed in the holding handle 2.

[0061] When the ventilation control device 49 does not act on the gas cut-off holding device 48, the gas cut-off holding device 48 makes the air delivery channel 411 in a disconnected state, and the high-pressure gas in the high-pressure gas storage cylinder 43 will not be output outward. When the ventilation control device 49 acts on the gas cut-off holding device 48, the air delivery channel 411 is in a conducting state, and the high-pressure gas in the high-pressure gas storage cylinder 43 is sequentially injected into the discharge channel 312 through the air delivery channel 411 and the air delivery pipe 46, and passes through the quantitative medicine storage holes 321 in the discharge channel 312, and finally is discharged outward through the medicine discharging pipe 34. In the whole process, the high-pressure gas is used to discharge the blockages in the discharge channel 312, the medicine discharging pipe 34 and the quantitative medicine storage holes 321 in the discharge channel 312 out to the outside through the medicine discharging pipe 34 together. The dredging effect is excellent, and it is simple and reliable, and the design is ingenious.

[0062] Specifically, one end of the gas transmission channel 411 away from the high-pressure gas storage cylinder 43 is reduced in diameter to form a plug guiding hole 411a. One end of the plug guiding hole 411a away from the high-pressure gas storage cylinder 43 communicates with the inside of the holding handle 2. The pore wall of the plug guiding hole 411a communicates with the air inlet nozzle 45 through a branch air passage 411b. A first conical surface 411c with a radius gradually decreasing towards the plug guiding hole 411a is formed between the gas transmission channel 411 and the plug guiding hole 411a. The plug 47 includes a plug main body 471 and a sliding fit rod 472 arranged coaxially. The plug main body 471 is a cylindrical structure with a diameter smaller than that of the gas transmission channel 411. The diameter of the sliding fit rod 472 is smaller than that of the plug main body 471 and is in sliding fit with the plug guiding hole 411a. One end cross-section of the plug main body 471 close to the sliding fit rod 472 is a second conical surface 473 capable of cooperating with the first conical surface 411c. An air seal 42 is arranged between one end of the plug guiding hole 411a close to the holding handle 2 and the sliding fit rod 472. One end of the sliding fit rod 472 away from the plug main body 471 penetrates out of the plug guiding hole 411a outward.

[0063] Correspondingly, the gas cut-off holding device 48 includes a spring support seat 481 fixedly installed at one end of the gas transmission channel 411 close to the high-pressure gas storage cylinder 43 and a compression spring 482 elastically supported between the adjacent end faces of the spring support seat 481 and the plug main body 471. An air vent hole 481a communicating the high-pressure gas storage cylinder 43 and the gas transmission channel 411 is formed on the spring support seat 481.

[0064] Correspondingly, the air vent control device 49 is an electromagnetic push rod, and the outer end face of the push rod 491 of the electromagnetic push rod faces the end face of one end of the sliding fit rod 472 penetrating out of the plug guiding hole 411a.

[0065] Therefore, when the push rod 491 of the electromagnetic push rod does not contact the sliding fit rod 472, the plug 47 is under the action of the compression spring 482, and its second conical surface 473 is in close fit with the first conical surface 411c of the gas transmission channel 411, thereby cutting off the gas transmission channel 411, and the high-pressure gas storage cylinder 43 does not output high-pressure gas outward; when the push rod 491 of the electromagnetic push rod pushes the plug 47 to move in the direction closer to the high-pressure gas storage cylinder 43, a gap appears between the second conical surface 473 of the plug 47 and the first conical surface 411c of the gas transmission channel 411, thereby making the gas transmission channel 411 conductive, and the high-pressure gas storage cylinder 43 outputs high-pressure gas outward. Specifically, the gas output volume is determined according to the holding time of the push rod 491 pushing the plug 47.

[0066] Please refer to Figures 6 - 12, the controller 5 mainly includes an MCU, a power module, a blanking execution module, a blanking detection module, and a dredging control module. Among them, the power module is used to supply power to the MCU. The blanking execution module is used to send the signal sent by the dosing switch 21 to the MCU and control the turntable control assembly 33 according to the control instruction sent by the MCU. The blanking detection module is used to control the sensor 35 according to the control instruction sent by the MCU, and then send the signal returned by the sensor 35 to the MCU. The dredging control module is used to control the dredging mechanism 4 according to the control instruction sent by the MCU.

[0067] Specifically, please refer to 7 and Figure 8 , the power module includes a first-stage step-down circuit and a second-stage step-down circuit connected in sequence. The input end of the first-stage step-down circuit obtains the input power supply, and the voltage of the input power supply is 12V, that is, the output voltage of the battery is 12V. The voltages at the output end of the first-stage step-down circuit and the input end of the second-stage step-down circuit are both 5V. The output end of the second-stage step-down circuit outputs the working voltage to the MCU, and the working voltage is 3.3V.

[0068] Please refer to Figure 7 , the first-stage step-down circuit is provided with a first step-down chip U3. The input end of the first step-down chip U3 is connected to the input power supply with a voltage of 12V. This input end is also grounded through a series capacitor C3. The output end of the first step-down chip U3 outputs a 5V voltage after being connected in series with an induction coil L1. The rear end of the induction coil L1 is grounded through a series capacitor C16, and this rear end is also connected to the feedback pin of the first step-down chip U3. The output end of the first step-down chip U3 is connected to the cathode of the switching diode D2, the anode of the switching diode D2 is grounded, the grounding end of the first step-down chip U3 is grounded, and the enable control pin and the EP pin of the first step-down chip U3 are both grounded. The first-stage step-down circuit can stably convert the 12V DC voltage into a 5V DC voltage.

[0069] Please refer to Figure 8 , the second-stage step-down circuit is provided with a second step-down chip U1. The input end of the second step-down chip U1 is connected to the rear end of the induction coil L1. This input end is also grounded through a series capacitor C4. Both output ends of the second step-down chip U1 output a working voltage of 3.3V. One of the output ends is also grounded through a series capacitor C5, and the grounding end of the second step-down chip U1 is grounded. The second-stage step-down circuit can stably convert the 5V DC voltage into a 3.3V DC voltage.

[0070] Please refer to Figure 9 and Figure 10 , the blanking execution module includes a switch circuit and a turntable drive circuit.

[0071] Please refer to Figure 9, the switch circuit is provided with a terminal P1 connected to the application switch 21 and a terminal P2 connected to the MCU. The pin 1 of the terminal P1 is connected to the input power supply, the pins 2 and 3 of the terminal P1 are both grounded, the pin 4 of the terminal P1 is connected to the pin 2 of the terminal P2, the common terminal of the pin 5 of the terminal P1 and the pin 1 of the terminal P2 is grounded, and the pin 6 of the terminal P1 is connected to the OUT terminal of the application switch 21. The start signal sent by the application switch 21 is sent to the MCU through this switch circuit.

[0072] Please participate Figure 10 , the turntable drive circuit includes a terminal H2 connected to the turntable control component 33 (servo 331). The pin 1 of the terminal H2 is connected to the output terminal of the second-stage buck circuit, and this pin 1 is also grounded after being connected in series with a capacitor C14. The pin 2 of the terminal H2 is connected to the PWM_DJ terminal of the MCU, and the pin 3 of the terminal H2 is grounded. The MCU issues a control instruction, which is sent to the turntable control component 33 (servo 331) through this turntable drive circuit.

[0073] Please participate Figure 11 , the blanking detection module is provided with a terminal H3 connected to the sensor 35. The pin 1 of the terminal H3 is connected to the input power supply, and this pin 1 is also grounded after being connected in series with a capacitor C15. The pin 2 of the terminal H3 is connected to the input power supply after being connected in series with a resistor R20, and this pin 2 is also connected to the LL_CHK terminal of the MCU. The pin 3 of the terminal H3 is grounded. The MCU issues a control instruction and sends it to the sensor 35 through the blanking detection module, and the information collected by the sensor 35 is sent to the MCU through the blanking detection module.

[0074] Please participate Figure 12, the dredging control module is provided with a wiring terminal P3 connected to the dredging mechanism 4 (electromagnetic push rod). The pin 2 of the wiring terminal P3 is grounded, the pin 1 of the wiring terminal P3 is connected to the normally open end of the relay RLY1. The common terminal of the relay RLY1 is connected to the output end of the first-stage step-down circuit, the voltage input terminal of the relay RLY1 is connected to the output end of the first-stage step-down circuit, the control terminal of the relay RLY1 is connected to the collector of the NPN-type triode Q1, the voltage input terminal of the relay RLY1 is connected to the cathode of the switching diode D1, the anode of the switching diode D1 is connected to the collector of the NPN-type triode Q1, the emitter of the NPN-type triode Q1 is grounded, and the base of the NPN-type triode Q1 is connected to the DC_CTRL terminal of the MCU after being connected in series with the resistor R19. This base is also connected to the ground after being connected in series with the resistor R18. When the dredging task needs to be executed, the DC_CTRL terminal of the MCU sends a high level to the base of the NPN-type triode Q1. The collector and emitter of the NPN-type triode Q1 are conducted, the induction coil of the relay RLY1 is powered on, the voltage input terminal and the normally closed end of the relay RLY1 are conducted, power is supplied to the electromagnetic push rod, and the push rod 491 of the electromagnetic push rod pushes the sliding fit rod 472; when the dredging task does not need to be executed, the DC_CTRL terminal of the MCU sends a low level to the base of the NPN-type triode Q1. The collector and emitter of the NPN-type triode Q1 are disconnected, the induction coil of the relay RLY1 is powered off, the voltage input terminal and the normally open end of the relay RLY1 are conducted, the electromagnetic push rod is powered off, and the push rod 491 of the electromagnetic push rod does not push the sliding fit rod 472.

[0075] Please refer to Figure 13 , the controller 5 further includes a wireless communication module. This wireless communication module is provided with a communication chip U2. The reset pin RST of the communication chip U2 is connected to the output end of the power module after being connected in series with the resistor R10. This reset pin RST is also connected to one end of the short-circuit point U4, and the other end of the short-circuit point U4 is grounded. The enable pin EN of the communication chip U2 is connected to the output end of the power module after being connected in series with the resistor R5. The power input terminal VCC of the communication chip U2 is connected to the output end of the power module, the ground terminal GND of the communication chip U2 is grounded, the GPIO15 pin of the communication chip U2 is connected to the ground after being connected in series with the resistor R12, the sending end TXD0 and the receiving end RXD0 of the communication chip U2 are respectively connected to the UART2RX terminal and the UART2TX terminal of the MCU, the GPIO0 pin of the communication chip U2 is connected to the output end of the power module after being connected in series with the resistor R13, and this GPIO0 pin is also connected to the ground after being connected in series with the switch SW4. By setting the wireless communication module, it is possible to support the device to perform remote wireless data interaction with the external system.

[0076] Please refer to Figure 14, the controller 5 further includes a USB communication module. The USB communication module is provided with a USB communication chip USB1. Both VBUS pins of the USB communication chip USB1 are connected to the input power supply. Both ground terminals of the USB communication chip USB1 are grounded. The two ground terminals are also connected to the CC1 pin of the USB communication chip USB1 after being connected in series with a resistor R16. The two ground terminals are also connected to the CC2 pin of the USB communication chip USB1 after being connected in series with a resistor R17. Both SHELL pins of the USB communication chip USB1 are grounded. By providing the USB communication module, it is possible to support data interaction based on USB between the device and an external system.

[0077] Finally, it should be noted that the above description is only the preferred embodiment of the present invention. Those of ordinary skill in the art, under the inspiration of the present invention and without departing from the purpose and claims of the present invention, can make various similar representations, and such transformations all fall within the protection scope of the present invention.

Claims

1. An intelligent anti-blocking solid particulate matter hand-held quantitative medicine applicator gun, comprising a medicine storage cylinder with a hollow cylindrical structure, and a holding handle and a rotary quantitative medicine feeder respectively installed at the upper and lower ends of the medicine storage cylinder. A medicine application switch is arranged on the holding handle, and it is characterized in that, The rotary metering medicine dispenser includes a dispenser housing fixedly installed at the lower end of the medicine storage cylinder, a medicine delivery turntable rotatably installed in the dispenser housing, a turntable control assembly for driving the rotation of the medicine delivery turntable, and a medicine discharging pipe installed at the lower part of the medicine delivery turntable. At least one metering medicine storage hole is formed in the medicine delivery turntable. The dispenser housing has a feeding groove communicating with the lower end of the medicine storage cylinder and a discharging channel communicating with the upper end of the medicine discharging pipe. The turntable control assembly can make each metering medicine storage hole complete material storage in the feeding groove first and then move to the discharging channel one by one to discharge medicine to the medicine discharging pipe. A sensor for detecting whether there is a blockage in the medicine discharging pipe, the discharging channel, and the metering medicine storage hole located in the discharging channel is installed on the dispenser housing; It further includes a dredging mechanism and a controller. The dredging mechanism can dredge the medicine discharging pipe, the discharging channel, and the metering medicine storage hole located in the discharging channel. The controller can not only control the dredging mechanism according to the detection result of the sensor but also control the turntable control assembly according to the start signal of the medicine application switch.

2. The intelligent anti-clogging solid particulate matter hand-held quantitative medicine applicator gun according to claim 1, characterized in that, The rotation axis of the medicine delivery turntable coincides with the central axis of the medicine storage cylinder. A plurality of the metering medicine storage holes are formed in the medicine delivery turntable and are evenly distributed along its rotation axis; When any one of the metering medicine storage holes is located in the discharging channel, the remaining metering medicine storage holes are all located in the feeding groove.

3. The intelligent anti-blocking solid particulate matter hand-held quantitative medicine applicator gun according to claim 2, characterized in that, A circle of driven teeth is formed on the outer peripheral surface of the medicine delivery turntable. The turntable control assembly includes a servo motor installed on the dispenser housing and a driving gear synchronously rotating and sleeved on the servo motor shaft of the servo motor. The driving gear meshes with the driven teeth.

4. The intelligent anti-clogging solid particulate matter hand-held quantitative medicine applicator gun according to claim 1, wherein The dredging mechanism includes a gas storage cylinder joint installed at the top of the holding handle. An air delivery channel is formed in the gas storage cylinder joint. One end of the air delivery channel is communicated with a high-pressure gas storage cylinder, and the other end is communicated with an exhaust nozzle. An air inlet nozzle communicated with it is installed at the upper end of the discharging channel. The exhaust nozzle is communicated with the air inlet nozzle through an air delivery pipe. A plug for controlling the on-off of the air delivery channel and a gas cut-off holding device for making the plug have a tendency to block the air delivery channel are movably installed in the air delivery channel. A ventilation control device for making the plug no longer block the air delivery channel is installed in the holding handle.

5. The intelligent anti-clogging solid particulate matter hand-held quantitative medicine applicator gun according to claim 4, wherein The end of the air delivery channel far from the high-pressure gas storage cylinder is reduced in diameter to form a plug guiding hole. The end of the plug guiding hole far from the high-pressure gas storage cylinder is communicated with the inside of the holding handle. The hole wall of the plug guiding hole is communicated with the air inlet nozzle through a branch air channel. A first conical surface with a radius gradually decreasing towards the plug guiding hole is formed between the air delivery channel and the plug guiding hole. The plug includes a plug main body and a sliding fit rod arranged coaxially. The plug main body is a cylindrical structure with a diameter smaller than that of the air delivery channel. The diameter of the sliding fit rod is smaller than that of the plug main body and is slidably fitted with the plug guiding hole. The cross section of the end of the plug main body close to the sliding fit rod is a second conical surface capable of cooperating with the first conical surface. An air seal is arranged between the end of the plug guiding hole close to the holding handle and the sliding fit rod. The end of the sliding fit rod far from the plug main body penetrates out of the plug guiding hole; The air cut-off holding device includes a spring support seat fixedly installed at one end of the air delivery channel close to the high-pressure gas cylinder, and a compression spring elastically supported between the adjacent end faces of the spring support seat and the plug main body. An air vent hole communicating the high-pressure gas cylinder and the air delivery channel is provided on the spring support seat; The air vent control device is an electromagnetic push rod, and the outer end face of the push rod of the electromagnetic push rod faces the end face of one end of the sliding fit rod passing through the plug guide hole.

6. The intelligent anti-blocking solid particulate matter hand-held quantitative medicine applicator gun according to claim 1, wherein An anti-blocking sleeve is installed at the lower end of the medicine discharging pipe. The anti-blocking sleeve includes an installation part sleeved on the lower end of the medicine discharging pipe and a flared opening integrally formed at the lower end of the installation part. The flared opening is a conical surface structure with a gradually increasing diameter from top to bottom.

7. The intelligent anti-clogging solid particulate matter handheld quantitative medicine applicator gun according to claim 1, characterized in that, The controller includes: MCU; A power supply module for supplying power to the MCU; A blanking execution module for sending the signal sent by the dosing switch to the MCU and controlling the turntable control component according to the control instruction sent by the MCU; A blanking detection module for controlling the sensor according to the control instruction sent by the MCU and then sending the signal returned by the sensor to the MCU; A dredging control module for controlling the dredging mechanism according to the control instruction sent by the MCU.

8. The intelligent anti-blocking solid particulate matter hand-held quantitative medicine applicator gun according to claim 7, wherein, The power supply module includes a first-stage step-down circuit and a second-stage step-down circuit connected in sequence. The input end of the first-stage step-down circuit obtains the input power supply, and the output end of the second-stage step-down circuit outputs the working voltage to the MCU; The blanking execution module includes a switch circuit and a turntable drive circuit. The switch circuit is provided with a wiring terminal P1 connected to the dosing switch and a wiring terminal P2 connected to the MCU. The 1st pin of the wiring terminal P1 is connected to the input power supply, the 2nd and 3rd pins of the wiring terminal P1 are both grounded, the 4th pin of the wiring terminal P1 is connected to the 2nd pin of the wiring terminal P2, the common end of the 5th pin of the wiring terminal P1 and the 1st pin of the wiring terminal P2 is grounded, the 6th pin of the wiring terminal P1 is connected to the OUT end of the dosing switch. The turntable drive circuit includes a wiring terminal H2 connected to the turntable control component. The 1st pin of the wiring terminal H2 is connected to the output end of the second-stage step-down circuit, and this 1st pin is also grounded through a series capacitor C14. The 2nd pin of the wiring terminal H2 is connected to the PWM_DJ end of the MCU, and the 3rd pin of the wiring terminal H2 is grounded; The blanking detection module is provided with a wiring terminal H3 connected to the sensor. The 1st pin of the wiring terminal H3 is connected to the input power supply, and this 1st pin is also grounded through a series capacitor C15. The 2nd pin of the wiring terminal H3 is connected to the input power supply through a series resistor R20, and this 2nd pin is also connected to the LL_CHK end of the MCU. The 3rd pin of the wiring terminal H3 is grounded; The dredging control module is provided with a wiring terminal P3 connected to the dredging mechanism. The pin 2 of the wiring terminal P3 is grounded. The pin 1 of the wiring terminal P3 is connected to the normally open end of the relay RLY1. The common end of the relay RLY1 is connected to the output end of the first-stage buck circuit. The voltage input end of the relay RLY1 is connected to the output end of the first-stage buck circuit. The control end of the relay RLY1 is connected to the collector of the NPN-type triode Q1. The voltage input end of the relay RLY1 is connected to the cathode of the switching diode D1. The anode of the switching diode D1 is connected to the collector of the NPN-type triode Q1. The emitter of the NPN-type triode Q1 is grounded. The base of the NPN-type triode Q1 is connected to the DC_CTRL end of the MCU after being series-connected with the resistor R19, and this base is also series-connected with the resistor R18 and then grounded.

9. The intelligent anti-blocking solid particulate matter hand-held quantitative medicine applicator gun according to claim 8, characterized in that, The controller further includes a wireless communication module. This wireless communication module is provided with a communication chip U2. The reset pin RST of the communication chip U2 is connected to the output end of the power supply module after being series-connected with the resistor R10. This reset pin RST is also connected to one end of the short-circuit point U4. The other end of the short-circuit point U4 is grounded. The enable pin EN of the communication chip U2 is connected to the output end of the power supply module after being series-connected with the resistor R5. The power input end VCC of the communication chip U2 is connected to the output end of the power supply module. The ground end GND of the communication chip U2 is grounded. The GPIO15 pin of the communication chip U2 is grounded after being series-connected with the resistor R12. The transmit end TXD0 and the receive end RXD0 of the communication chip U2 are respectively connected to the UART2RX end and the UART2TX end of the MCU. The GPIO0 pin of the communication chip U2 is connected to the output end of the power supply module after being series-connected with the resistor R13, and this GPIO0 pin is also series-connected with the switch SW4 and then grounded.

10. The intelligent anti-blocking solid particulate matter handheld quantitative medicine applicator gun according to claim 8, characterized in that, The controller further includes a USB communication module. This USB communication module is provided with a USB communication chip USB1. Both VBUS pins of the USB communication chip USB1 are connected to the input power supply. Both ground ends of the USB communication chip USB1 are grounded. These two ground ends are also series-connected with the resistor R16 and then connected to the CC1 pin of the USB communication chip USB1. These two ground ends are also series-connected with the resistor R17 and then connected to the CC2 pin of the USB communication chip USB1. Both SHELL pins of the USB communication chip USB1 are grounded.

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