A quantitative applicator

Abstract

The present invention relates to the technical field of applicators, and discloses a quantitative applicator, which includes a housing. A connecting pipe is inserted at the bottom end of the housing. A fixed cover is fixedly installed on the left side of the bottom end of the connecting pipe. A filter ball is fixedly installed at the left end of the connecting pipe. A nozzle assembly is fixedly installed at the top of the left end of the housing. A switch assembly is movably connected to the middle of the left end of the nozzle assembly. A medicine spraying assembly is fixedly installed in the inner cavity of the housing. For this quantitative applicator, the motor 1 drives the threaded rod to rotate. When the threaded rod rotates, it drives the push plate to move leftward, so as to discharge the medicine located on the left side of the push plate through the rear end of the connecting hose. By controlling the moving distance of the push plate in the inner cavity of the liquid storage pipe, the distance value between the push plate and the left end of the inner cavity of the liquid storage pipe can be changed, so as to control the content of the medicine added into the liquid storage pipe, and realize accurate control of the content of the medicine sprayed from the nozzle assembly, improving the accuracy of tobacco bud inhibition medicine application.

Description

Technical Field

[0001] The present invention relates to the technical field of applicators, and specifically relates to a quantitative applicator. Background Art

[0002] After topping the tobacco plants, thoroughly removing the axillary buds is an important measure to ensure the yield and quality of flue-cured tobacco. Therefore, it is very necessary to apply bud inhibitors on tobacco, which has many advantages such as saving time and reducing the spread of diseases. To improve the effect of bud inhibition, the following points should be noted when using bud inhibitors: The medicine should be applied within 24 hours after topping to improve the bud inhibition effect; the liquid medicine should be allowed to flow down along the stem from the topping position to ensure that each axillary bud is drenched; it is not suitable to use when the plants are too wet (after rain), the temperature is too high, or the wind speed is too high to avoid direct contact between the liquid medicine and the tobacco leaves. When using bud inhibitors, an applicator is needed for applying the medicine.

[0003] Most of the existing applicators choose to spray the medicine when in use. When pressing the spray switch, the medicine sprays out from the inside of the applicator. When the switch is released, the internal spray component is automatically refilled with liquid to achieve continuous spraying. However, most of them cannot accurately control the content of the sprayed medicine during use, reducing the accuracy of applying bud inhibitors to tobacco. Summary of the Invention

[0004] The present invention provides a quantitative applicator, which has the advantage of being able to accurately control the content of the sprayed medicine and improving the accuracy of applying bud inhibitors to tobacco, and solves the problems raised in the above background art.

[0005] The present invention provides the following technical solutions: A quantitative applicator includes a housing. A connecting pipe is inserted at the bottom end of the housing. A fixed cover is fixedly installed on the left side of the bottom end of the connecting pipe. A filter ball is fixedly installed at the left end of the connecting pipe. A nozzle assembly is fixedly installed at the top of the left end of the housing. A switch assembly is movably connected to the middle of the left end of the nozzle assembly. A spraying component is fixedly installed in the inner cavity of the housing. A battery is electrically connected to the bottom of the inner cavity of the housing. A liquid storage pipe is fixedly installed at the top of the inner cavity of the housing. A connecting hose is fixedly installed on the left side surface of the liquid storage pipe. A motor I is fixedly installed at the right end of the liquid storage pipe. The output end of the motor I is fixedly sleeved with a threaded rod. A push plate is drivingly connected to the surface of the threaded rod. A rack is movably connected to the left side surface of the liquid storage pipe. A pressing plate is fixedly installed at the bottom end of the rack. A motor II is fixedly installed on the left side surface of the liquid storage pipe. The output end of the motor II is fixedly sleeved with a gear. A support frame is fixedly installed on the left side surface of the liquid storage pipe.

[0006] Preferably, a chute is provided in the inner cavity of the liquid storage pipe. A slider is fixedly installed on the side wall of the push plate. The slider is movably connected in the chute.

[0007] Preferably, the top end of the connecting hose is placed inside the support frame, the shape of the support frame is "U" shaped, and the pressing plate is located directly above the inner cavity of the support frame.

[0008] Preferably, the threaded rod is movably connected inside the liquid storage tube, and the difference between the length value of the inner cavity of the housing and the length value of the liquid storage tube is two millimeters less than the thickness value of the push plate.

[0009] Preferably, the left end of the liquid storage tube is fixedly installed with a liquid outlet pipe and a liquid inlet pipe. The bottom end of the liquid inlet pipe is fixedly connected to the bottom end of the connecting hose. The left end of the liquid outlet pipe is fixedly installed on the right end of the medicine spraying assembly, and the bottom end of the connecting hose is fixedly connected to the top end of the connecting pipe.

[0010] Preferably, the left end of the medicine spraying assembly is fixedly connected to the right end of the nozzle assembly, and the bottom end of the medicine spraying assembly is drivingly connected to the top end of the switch assembly.

[0011] Preferably, the height value of the rack is one-third larger than the height value of the inner cavity of the support frame, and the right end of the rack meshes with the left end of the gear.

[0012] Preferably, the top end of the connecting hose is located behind the liquid outlet pipe, and the top end on the rear side of the connecting hose is fixedly installed on the left side surface of the liquid storage tube.

[0013] The present invention has the following beneficial effects:

[0014] 1. For this metering applicator, the motor 1 drives the threaded rod to rotate. When the threaded rod rotates, it drives the push plate to move leftward, thereby discharging the medicine located on the left side of the push plate through the rear end of the connecting hose. By controlling the moving distance of the push plate inside the liquid storage tube, the distance value between the push plate and the left end of the inner cavity of the liquid storage tube can be changed, thereby controlling the content of the medicine added into the liquid storage tube and achieving precise control of the content of the medicine sprayed from the nozzle assembly, improving the precision of tobacco bud inhibition medicine application. For example, when it is necessary to control the amount of medicine, when the push plate 15 moves to the central position of the inner cavity of the liquid storage tube 9, the volume between the push plate 15 and the left side surface of the inner cavity of the liquid storage tube 9 is twenty milliliters. At this time, when the medicine is sprayed from the nozzle assembly 5, only twenty milliliters of the medicine located in the liquid storage tube 9 can be sprayed.

[0015] 2. For this metering applicator, by controlling the push plate to move to the left end of the inner cavity of the liquid storage tube and fit with the left side surface of the inner cavity of the liquid storage tube, during the process of the push plate moving to the leftmost end, the medicine in the inner cavity of the push plate is gradually extruded from the rear end of the connecting hose, avoiding the residue of the medicine in the inner cavity of the liquid storage tube after the device is used, and preventing the residual medicine in the liquid storage tube from being sprayed out during the next use, reducing the waste of medicine and lowering the use cost of the device.

[0016] 3. The metering applicator drives the pressing plate to move upward through the rack, separating the pressing plate from the top end of the connecting hose. When adding the medicament into the liquid storage tube, the rotation of the threaded rod drives the push plate to move rightward, providing negative pressure to suck the medicament into the liquid storage tube from the front and rear two top ends of the connecting hose. When used for the first time, the user does not need to repeatedly press the switch assembly, with simple operation and reduced labor intensity of the operator. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 is a schematic structural diagram of the present invention;

[0018] Figure 2 is a schematic cross-sectional view of the structural housing of the present invention;

[0019] Figure 3 is a schematic connection diagram of the connecting hose of the structure of the present invention;

[0020] Figure 4 is a schematic cross-sectional view of the liquid storage tube of the structure of the present invention;

[0021] Figure 5 is an enlarged schematic view of part A of the structure of the present invention.

[0022] In the figure: 1. Housing; 2. Connecting pipe; 3. Fixed cover; 4. Filter ball; 5. Nozzle assembly; 6. Switch assembly; 7. Spraying assembly; 8. Battery; 9. Liquid storage tube; 10. Motor 1; 11. Liquid outlet pipe; 12. Liquid inlet pipe; 13. Connecting hose; 14. Threaded rod; 15. Push plate; 16. Rack; 17. Pressing plate; 18. Motor 2; 19. Gear; 20. Support frame; 21. Chute; 22. Slide block. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0023] Next, the technical solutions in the embodiments of the present invention will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present invention.

[0024] Please refer to Figures 1-5, A quantitative applicator, comprising a housing 1. A connecting pipe 2 is inserted at the bottom end of the housing 1. A fixed cover 3 is fixedly installed on the left side of the bottom end of the connecting pipe 2. A filter ball 4 is fixedly installed at the left end of the connecting pipe 2. A nozzle assembly 5 is fixedly installed at the top of the left end of the housing 1. A switch assembly 6 is movably connected to the middle of the left end of the nozzle assembly 5. A medicine spraying assembly 7 is fixedly installed in the inner cavity of the housing 1. The left end of the medicine spraying assembly 7 is fixedly connected to the right end of the nozzle assembly 5. The bottom end of the medicine spraying assembly 7 is drivingly connected to the top end of the switch assembly 6. Insert the left end of the connecting pipe 2 into the medicine placement pot, and the fixed cover 3 is tightened on the placement opening of the medicine placement pot. When in use, press the switch assembly 6, and the switch assembly 6 drives the medicine spraying assembly 7 to move, pressurizing the medicine in the liquid storage pipe 9 through the medicine spraying assembly 7 into the nozzle assembly 5 and spraying it out through the nozzle assembly 5. Release the switch assembly 6, and the medicine spraying assembly 7 resets. At this time, the medicine is added into the liquid storage pipe 9 through the connecting pipe 2. A battery 8 is electrically connected to the bottom of the inner cavity of the housing 1. A connecting hose 13 is fixedly installed on the left side of the liquid storage pipe 9. The top end of the connecting hose 13 is placed in a support frame 20. The shape of the support frame 20 is "U" shaped. A pressing plate 17 is located directly above the inner cavity of the support frame 20. The top end of the connecting hose 13 is located behind the liquid outlet pipe 11. The top end of the rear side of the connecting hose 13 is fixedly installed on the left side of the liquid storage pipe 9. The support frame 20 positions and supports the top end of the connecting hose 13, preventing the connecting hose 13 from moving and ensuring the normal opening and closing of the connecting hose 13. A liquid storage pipe 9 is fixedly installed at the top of the inner cavity of the housing 1. A chute 21 is provided in the inner cavity of the liquid storage pipe 9. A slider 22 is fixedly installed on the side wall of the push plate 15. The slider 22 is movably connected in the chute 21. The slider 22 positions and guides the movement of the push plate 15, ensuring the stability of the movement of the push plate 15. The left end of the liquid storage pipe 9 is fixedly installed with a liquid outlet pipe 11 and a liquid inlet pipe 12. The bottom end of the liquid inlet pipe 12 is fixedly connected to the bottom end of the connecting hose 13. The left end of the liquid outlet pipe 11 is fixedly installed at the right end of the medicine spraying assembly 7. The bottom end of the connecting hose 13 is fixedly connected to the top end of the connecting pipe 2. A motor 10 is fixedly installed at the right end of the liquid storage pipe 9. The output end of the motor 10 is fixedly sleeved with a threaded rod 14. By driving the threaded rod 14 to rotate through the motor 10, the threaded rod 14 drives the push plate 15 to move leftward when rotating, thereby discharging the medicine located on the left side of the push plate 15 through the rear end of the connecting hose 13. By controlling the moving distance of the push plate 15 in the inner cavity of the liquid storage pipe 9, the distance value between the push plate 15 and the left end of the inner cavity of the liquid storage pipe 9 can be changed. For example, when medicine is needed, when the push plate 15 moves to the central position of the inner cavity of the liquid storage pipe 9, the volume between the push plate 15 and the left side wall of the inner cavity of the liquid storage pipe 9 is twenty milliliters. At this time, when the medicine is sprayed out through the nozzle assembly 5, only twenty milliliters of the medicine in the liquid storage pipe 9 can be sprayed out, thereby realizing the control of the medicine content added into the liquid storage pipe 9 and achieving precise control of the medicine content sprayed out from the nozzle assembly 5, improving the precision of medicine application for tobacco bud suppression. The threaded rod 14 is movably connected in the inner cavity of the liquid storage pipe 9.The difference between the length value of the inner cavity of the housing 1 and the length value of the liquid storage tube 9 is two millimeters smaller than the thickness value of the push plate 15. Control the push plate 15 to move to the left end of the inner cavity of the liquid storage tube 9 and fit with the left side surface of the inner cavity of the liquid storage tube 9. During the process of the push plate 15 moving to the leftmost end, the medicament in the inner cavity of the push plate 15 is gradually extruded from the rear end of the connecting hose 13, avoiding the residue of the medicament in the inner cavity of the liquid storage tube 9 after the device is used up, and avoiding the ejection of the residual medicament in the liquid storage tube 9 during the next use, reducing the waste of the medicament and lowering the use cost of the device. The surface of the threaded rod 14 is drivingly connected with the push plate 15. The left side surface of the liquid storage tube 9 is movably connected with a rack 16. The height value of the rack 16 is one-third larger than the height value of the inner cavity of the support frame 20. The right end of the rack 16 is meshed with the left end of the gear 19. The rack 16 drives the pressing plate 17 to move upward, so that the pressing plate 17 is separated from the top end of the connecting hose 13. When adding the medicament into the liquid storage tube 9, the rotation of the threaded rod 14 drives the push plate 15 to move to the right, providing negative pressure to suck the medicament into the liquid storage tube 9 from the front and rear top ends of the connecting hose 13. When using for the first time, the user does not need to repeatedly press the switch assembly 6, and the operation is simple, reducing the labor intensity of the operator. The bottom end of the rack 16 is fixedly installed with a pressing plate 17. The left side surface of the liquid storage tube 9 is fixedly installed with a second motor 18. The output end of the second motor 18 is fixedly sleeved with a gear 19. The left side surface of the liquid storage tube 9 is fixedly installed with a support frame 20.,

[0025] Working principle: Insert the left end of the connecting pipe 2 into the medicine placement pot, and the fixing cover 3 is tightened on the placement opening of the medicine placement pot. When in use, drive the pressing plate 17 to move upward through the rack 16, so that the pressing plate 17 is separated from the top end of the connecting hose 13. When adding medicine into the liquid storage pipe 9, the rotation of the threaded rod 14 drives the push plate 15 to move to the right, providing negative pressure to suck the medicine into the liquid storage pipe 9 from the front and rear two top ends of the connecting hose 13. When used for the first time, it does not require the user to repeatedly press the switch assembly 6, with simple operation and reduced labor intensity of the operator. Press the switch assembly 6, and the switch assembly 6 drives the spraying assembly 7 to move, pressurize the medicine in the liquid storage pipe 9 through the spraying assembly 7 into the nozzle assembly 5, and spray it out through the nozzle assembly 5. Release the switch assembly 6, and the spraying assembly 7 resets. At this time, the medicine is added into the liquid storage pipe 9 through the connecting pipe 2. Drive the gear 19 to rotate through the second motor 18, and the engagement of the gear 19 with the rack 16 can drive the pressing plate 17 to move upward and leave the inner cavity of the support frame 20, opening the rear end of the connecting hose 13. Drive the threaded rod 14 to rotate through the first motor 10. When the threaded rod 14 rotates, it drives the push plate 15 to move to the left, so as to discharge the medicine located on the left side of the push plate 15 through the rear end of the connecting hose 13. By controlling the moving distance of the push plate 15 in the inner cavity of the liquid storage pipe 9, the distance value between the push plate 15 and the left end of the inner cavity of the liquid storage pipe 9 can be changed, so as to control the content of the medicine added into the liquid storage pipe 9, realize accurate control of the content of the medicine sprayed out from the nozzle assembly 5, and improve the accuracy of tobacco bud inhibition spraying. After the device is used up, control the push plate 15 to move to the left end of the inner cavity of the liquid storage pipe 9 and fit with the left side surface of the inner cavity of the liquid storage pipe 9. During the process of the push plate 15 moving to the leftmost end, gradually squeeze the medicine in the inner cavity of the push plate 15 out from the rear end of the connecting hose 13, avoid the residue of the medicine in the inner cavity of the liquid storage pipe 9 after the device is used up, avoid spraying the residual medicine in the liquid storage pipe 9 during the next use, reduce the waste of the medicine, and reduce the use cost of the device.

[0026] It should be noted that in this article, relational terms such as first and second are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any actual relationship or order between these entities or operations. Moreover, the term "comprising", "including" or any other variant thereof is intended to cover non-exclusive inclusion, so that a process, method, article or device comprising a series of elements not only includes those elements, but also includes other elements not expressly listed, or elements inherent to such process, method, article or device.

[0027] Although embodiments of the present invention have been shown and described, it will be understood by those of ordinary skill in the art that various changes, modifications, substitutions and variations can be made to these embodiments without departing from the principles and spirit of the present invention, and the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A quantitative applicator, comprising a housing (1), characterized in that: A connecting pipe (2) is inserted at the bottom end of the housing (1). A fixed cover (3) is fixedly installed on the left side of the bottom end of the connecting pipe (2). A filtering ball (4) is fixedly installed at the left end of the connecting pipe (2). A nozzle assembly (5) is fixedly installed at the top of the left end of the housing (1). A switch assembly (6) is movably connected to the middle of the left end of the nozzle assembly (5). A medicine spraying assembly (7) is fixedly installed in the inner cavity of the housing (1). A battery (8) is electrically connected to the bottom of the inner cavity of the housing (1). A liquid storage pipe (9) is fixedly installed at the top of the inner cavity of the housing (1). A connecting hose (13) is fixedly installed on the left side surface of the liquid storage pipe (9). A first motor (10) is fixedly installed at the right end of the liquid storage pipe (9). A threaded rod (14) is fixedly sleeved on the output end of the first motor (10). A push plate (15) is drivingly connected to the surface of the threaded rod (14). A rack (16) is movably connected to the left side surface of the liquid storage pipe (9). A pressing plate (17) is fixedly installed at the bottom end of the rack (16). A second motor (18) is fixedly installed on the left side surface of the liquid storage pipe (9). A gear (19) is fixedly sleeved on the output end of the second motor (18). A support frame (20) is fixedly installed on the left side surface of the liquid storage pipe (9); The top end of the connecting hose (13) is placed in the support frame (20). The shape of the support frame (20) is "U" shaped. The pressing plate (17) is located directly above the inner cavity of the support frame (20); An outlet pipe (11) and an inlet pipe (12) are fixedly installed at the left end of the liquid storage pipe (9). The bottom end of the inlet pipe (12) is fixedly connected to the bottom end of the connecting hose (13). The left end of the outlet pipe (11) is fixedly installed at the right end of the medicine spraying assembly (7). The bottom end of the connecting hose (13) is fixedly connected to the top end of the connecting pipe (2); The height value of the rack (16) is one-third larger than the height value of the inner cavity of the support frame (20). The right end of the rack (16) is meshed with the left end of the gear (19).

2. The quantitative applicator according to claim 1, characterized in that: A chute (21) is formed in the inner cavity of the liquid storage pipe (9). A slider (22) is fixedly installed on the side wall of the push plate (15). The slider (22) is movably connected in the chute (21).

3. The quantitative applicator according to claim 1, characterized in that: The threaded rod (14) is movably connected in the inner cavity of the liquid storage pipe (9). The difference between the length value of the inner cavity of the housing (1) and the length value of the liquid storage pipe (9) is two millimeters smaller than the thickness value of the push plate (15).

4. The quantitative applicator according to claim 1, wherein: The left end of the medicine spraying assembly (7) is fixedly connected to the right end of the nozzle assembly (5). The bottom end of the medicine spraying assembly (7) is drivingly connected to the top end of the switch assembly (6).

5. The quantitative applicator according to claim 1, wherein: The top end of the connecting hose (13) is located at the rear side of the outlet pipe (11). The top end of the rear side of the connecting hose (13) is fixedly installed on the left side surface of the liquid storage pipe (9).

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