CN111328577A - Spraying device and spraying method for exogenous hormones before flowering of corn - Google Patents

Abstract

The invention relates to a corn preschool exogenous hormone spraying device, wherein a liquid storage cavity is arranged in a backpack spraying box, an exogenous hormone box is arranged at the lower end of the backpack spraying box, an exogenous hormone storage cavity is arranged in the exogenous hormone box, the lower end surfaces of the liquid storage cavity and the exogenous hormone storage cavity are both arc surfaces converging towards the middle, a liquid outlet pipe is arranged at the lower end of the liquid storage cavity, an exogenous hormone suction pipe is arranged in the middle of the exogenous hormone storage cavity, the exogenous hormone suction pipe and the liquid outlet pipe are both connected with a mixing pipe, the mixing pipe is connected with a mixing mechanism, and the mixing mechanism is connected with an exogenous hormone delivery pipe. Before use, the liquid and the high-concentration, paste/paste-like exogenous hormone dispersion are temporarily diluted to the concentration to be actually used, and homogenized by a mixing mechanism with a spiral flow channel. The invention solves the problems that the exogenous hormone is not prepared at present and is easy to deteriorate to cause activity reduction or loss in the prior exogenous hormone spraying.

Description

Spraying device and spraying method for exogenous hormones before flowering of corn

Technical Field

The invention relates to the field related to exogenous hormone spraying, in particular to a corn presanthesis exogenous hormone spraying device and a spraying method thereof.

Background

Plant hormones are organic substances produced by the metabolism of plants, move from a production part to an action part, and have obvious physiological effects at an extremely low concentration, and are also called plant natural hormones or plant endogenous hormones. They regulate the growth, development and differentiation of plants in terms of cell division and elongation, tissue and organ differentiation, flowering and fructification, maturation and senescence, dormancy and germination, and in vitro tissue culture, respectively or in coordination with one another. This flexibility and versatility of regulation can be achieved by using exogenous hormone concentrations and ratio variations to alter endogenous hormone levels and balance. With the development of biological science and technology, the production of crops which only can be eaten by the weather in the past gradually develops to scientificity, and the endogenous hormone level and balance of plants are changed by manually spraying certain exogenous hormones, so that the yield of the plants is improved, and the characters of produced products are changed.

The backpack spraying structure is generally adopted for manually spraying the exogenous hormone, and the exogenous hormone is generally solid, so that the spraying work can be completed only by adding pure water and a dispersing agent to prepare the exogenous hormone into a liquid state before spraying, so that the exogenous hormone needs to be dissolved firstly to prepare the exogenous hormone into the liquid state before spraying in a field at present, and then the exogenous hormone is poured into the backpack spraying structure, a longer time interval exists before preparation and final spraying, particularly when the concentration is relatively dilute, if the prepared exogenous hormone is placed for a long time, the deterioration and the reduction or even loss of the bioactivity of the prepared exogenous hormone can be easily caused at a higher environmental temperature in summer.

Disclosure of Invention

Technical problem to be solved

The invention aims to provide a corn pre-flowering exogenous hormone spraying device and a spraying method thereof, and aims to solve the problems that exogenous hormone is not used for on-site preparation in the prior exogenous hormone spraying, a longer time interval exists between preparation and spraying, the spraying operation is not friendly and flexible enough, the spraying amount is not easy to master in the on-site preparation, and more exogenous hormone is wasted.

(II) technical scheme

In order to achieve the purpose, the invention adopts the main technical scheme that:

the invention provides a corn presanthesis exogenous hormone spraying device, which comprises a backpack spraying box (1), wherein: a liquid storage cavity (16) is arranged on one side inside the backpack spraying box (1), and an exogenous hormone box (14) is arranged at the lower end of the backpack spraying box (1);

an exogenous hormone storage cavity (17) is arranged inside the exogenous hormone box (14), the lower end faces of the liquid storage cavity (16) and the exogenous hormone storage cavity (17) are both conical surfaces which enable materials to gather towards the middle, a liquid outflow pipe (18) is installed at the lower end of the liquid storage cavity (16), an exogenous hormone suction pipe (19) is arranged in the middle of the exogenous hormone storage cavity (17), one end of the exogenous hormone suction pipe (19) penetrates into the exogenous hormone box (14), and the other end of the exogenous hormone suction pipe is communicated with the liquid outflow pipe (18); a mixing pipe (21) is arranged on one side of the liquid outlet pipe (18);

a mixing mechanism (4) is installed on the other side of the interior of the backpack spraying box (1), a uniform mixing cavity (24) is arranged in the mixing mechanism (4), a mixing pipe (21) is connected with the interior of the uniform mixing cavity (24), a spiral mixing mechanism (23) is installed in the uniform mixing cavity (24), and the spiral mixing mechanism (23) comprises a middle upright post (25), a spiral plate (26) and a flow blocking block (27); middle stand (25) are located the centre of spiral plate (26), and choked flow piece (27) set up on the surface of spiral plate (26), and spiral plate (26) and middle stand (25) are all fixed with the inner wall in misce bene chamber (24), the upper end of mixing mechanism (4) is provided with exogenous hormone eduction tube (5), exogenous hormone eduction tube (5) are fixed through fixed block (7) with backpack spraying case (1), the other end of exogenous hormone eduction tube (5) is connected with delivery pump (22), one side of delivery pump (22) is connected with spraying hose (9).

According to a preferred embodiment of the present invention, check valves (20) are installed between the mixing tube (21) and the liquid outlet tube (18) and between the exogenous hormone dip tube (19) and the liquid outlet tube (18).

According to a preferred embodiment of the invention, the other end of the spraying hose (9) is connected with an elongated spraying rod (28), and the elongated spraying rod (28) comprises an elongated rod (31), a handle (29) and a fixed clamping piece (32); the fixed clamping piece (32) is fixedly arranged at one end of the extension bar (31) close to the grip (29); one end of the fixed clamping piece (32) is fixedly connected with the extension bar (31), and the other end clamps the spraying hose (9); one end of the spraying hose (9) is fixed on the extension bar (31) by means of the fixing clamp (32).

According to a preferred embodiment of the invention, the extension bar (31) is internally provided with a hollow cylinder, and a lead screw (37) is arranged in the hollow cylinder; a hand wheel (30) is mounted at the other end of the handle (29), the hand wheel (30) is synchronously and rotatably connected with a lead screw (37), and the lead screw (37) is connected with the handle (29) through a bearing;

one side of the extension bar (31) is provided with a slender cutting groove arranged along the length direction of the extension bar; the screw rod (37) is combined with a plurality of nuts, the nuts are respectively connected with a movable clamping piece (33), the nut positioned at the uppermost end of the screw rod (37) is connected with a movable spraying clamping piece (34), the outer end of each movable clamping piece (33) extends out of the elongated slot and is used for clamping the middle part of the fixed spraying hose (9), the outer end of each movable spraying clamping piece (34) extends out of the elongated slot and is used for clamping the position, close to the tail end, of the spraying hose (9), and the tail end of the spraying hose (9) is connected with a spraying head (36); the positions of the spraying hose (9) and the spraying head (36) are moved by rotating the hand wheel (30) so as to meet the spraying requirements of different heights.

Wherein, the number of the movable clamping pieces (33) is 2-5, and each movable clamping piece (33) is an omega-shaped structure formed by two metal sheets in an opposite way.

According to a preferred embodiment of the present invention, the screw (37) comprises a smooth rod (38), the smooth rod (38) is disposed at one side of the inside of the extension bar (31), and the length of the smooth rod (38) is equal to the total length of the three movable clamping members (33).

According to a preferred embodiment of the invention, a spraying pipe (35) is connected between the spraying hose (9) and the spraying head (36); the movable spraying clamping piece (34) is used for clamping the spraying pipe (35), the spraying pipe (35) is a hard pipe, the outer diameter of the spraying pipe is larger than or equal to the inner diameter of the spraying hose (9), the spraying pipe (35) is sleeved inside the spraying hose (9) and is in tight fit connection, and sealing glue is adopted at a joint to strengthen sealing connection; the spraying pipe (35) has 90-degree bending arc and is connected with the spraying head (36), and the spraying surface of the spraying head (36) is parallel to the extension rod (31).

According to a preferred embodiment of the invention, a load-reducing silica gel back plate (10) is arranged on the back surface of the backpack spraying box (1), and the load-reducing silica gel back plate (10) is fixedly connected with the backpack spraying box (1); the middle area of the surface of the burden-reducing silica gel back plate (10) is set to be a concave surface, an anti-skidding massage bag (11) is arranged on the concave surface, silica gel blocks (12) are arranged on two sides of the massage bag (11), a soft waist pillow bag (13) is arranged at the lower end between the backpack spraying box (1) and the burden-reducing silica gel back plate (10), and the soft waist pillow bag (13) is connected with the burden-reducing silica gel back plate (10) in a sticking mode; the upper end and the lower end of the end face of the backpack spraying box (1) are connected with straps (6), and the two ends of the straps (6) are positioned between the burden-reducing silica gel back plate (10) and the backpack spraying box (1).

According to a preferred embodiment of the invention, an external equipment box (8) is arranged at the lower end of one side of the backpack spraying box (1), a delivery pump (22) is positioned inside the external equipment box (8), a spraying hose (9) passes through the external equipment box (8) and extends to the outside, an exogenous hormone box feeding cover (15) is arranged at one side of the upper end of the exogenous hormone box (14), the exogenous hormone box feeding cover (15) is connected with the exogenous hormone box (14) through threads, a liquid feeding cover (2) is arranged at one side of the upper end of the backpack spraying box (1), the liquid feeding cover (2) is connected with the backpack spraying box (1) through threads, and a handle (3) is arranged in the middle of the upper end of the backpack spraying box (1); the exogenous hormone is stored inside the exogenous hormone tank (14) in a highly concentrated liquid, paste or ointment-like charge.

According to a preferred embodiment of the present invention, a manual inflator is provided at the exogenous hormone tank (17), and the exogenous hormone tank (17) is pressurized to push the exogenous hormone to flow to the exogenous hormone dip tube (19). Or a small pump is arranged on the exogenous hormone suction pipe (19) and the mixing pipe (21), the small pump is specially used for sucking the exogenous hormone in the exogenous hormone tank (17), the small pump and the delivery pump (22) are controlled in a linkage mode, and a preset time delay is formed in relation to the starting of the delivery pump (22).

The invention also provides a spraying method of the exogenous hormones before the flowering of the corn, which comprises the following steps:

the method comprises the following steps: spraying 17:00-18:00 in the afternoon of clear and calm;

step two: opening the liquid feeding cover (2) to add pure water and Tween-20 into the liquid storage cavity (16), opening the exogenous hormone box feeding cover (15) to add high-concentration liquid, pasty or ointment exogenous hormone into the exogenous hormone storage cavity (17);

the high-concentration liquid, pasty or ointment-like exogenous hormone is prepared by homogenizing and stirring solid exogenous hormone and a small amount of liquid to improve the fluidity and facilitate the absorption of the exogenous hormone by an exogenous hormone absorption tube (19);

step three: an operator rotates the hand wheel (30), the movable spraying clamping piece (34) is driven to slide through the lead screw (37), the spraying head (36) is moved to the position above a corn plant to be sprayed, and the angle between the lengthened spraying spray rod (28) and the horizontal plane is 45 degrees;

step four: starting the delivery pump (22), adsorbing pure water and tween-20 in the liquid storage cavity (16) and the exogenous hormone in the exogenous hormone storage cavity (17) out, mixing the pure water and tween-20 in the liquid storage cavity and the exogenous hormone in the exogenous hormone storage cavity, and then feeding the mixture into the spray head (36) through the spraying hose (9) for spraying;

step five: an operator finishes spraying the corn plants in the two paths around, rotates the hand wheel (30) to move the spraying head (36) to the upper part of the corn plants needing spraying on the outer side for spraying until all the corn plants are sprayed;

step six: when rainfall occurs within 24 hours after spraying, carrying out additional spraying work;

step seven: and spraying the corn plants for three days continuously to complete all spraying work of the corn plants.

Wherein the concentration of the Tween-20 is 0.01 percent.

(III) advantageous effects

Compared with the prior art, the invention has the beneficial effects that:

(1) the invention has liquid storage chamber and exogenous hormone storage chamber in the backpack spray box, store pure water additive and exogenous hormone separately, when preparing to spray in the corn field, turn on the delivery pump, therefore the exogenous hormone in the exogenous hormone storage chamber is absorbed by the exogenous hormone dip tube under the adsorption force and mixed with pure water and Tween additive in the liquid storage chamber, enter mixing the homogeneous cavity through the mixing tube, because there is spiral mixing mechanism in mixing the homogeneous cavity, the spiral board and middle pillar stand of the spiral mixing mechanism and mixing the intracavity wall to fix, therefore the mixed solution will move spirally upwards, equal to mixing pure water and exogenous hormone in the spiral course, add Tween-20 help to dissolve the function, make pure water and exogenous hormone mix, because there is a choke block on the spiral board, there is impact action when the mixed solution of spiral upwards hits the choke block at a high speed, under the effect of continuous collision, namely the spiral effect, mixed liquid is mixed evenly in the misce bene intracavity, finally carries to the atomising head position through the delivery pump and carries out the spraying, has accomplished the ready-prepared usefulness, and preparation volume is impartial basically with the spraying volume, does not have excessive extravagant problem.

(2) According to the invention, through the arrangement of the two one-way valves, when unit spraying is finished and the switch of the delivery pump is closed, the mixed liquid in the spiral mixing mechanism flows back and enters the mixing pipe again, the one-way valve at the position can prevent the mixed liquid which is mixed from entering the exogenous hormone storage cavity to pollute clean exogenous hormone, the one-way valve at the upper end of the exogenous hormone suction pipe can prevent the liquid from entering the exogenous hormone storage cavity to pollute the exogenous hormone, so that liquid components and the exogenous hormone are thoroughly separated, the exogenous hormone is prepared into concentrated liquid with high concentration or pasty/pasty concentrate in advance, the concentrated liquid can be quickly mixed when spraying is needed, and the exogenous hormone stored when spraying is not needed can not be polluted.

(3) According to the corn plant spraying device, an operator can drive the lead screw to rotate by rotating the hand wheel, so that the movable clamping piece and the movable spraying clamping piece can correspondingly slide under the action of threads, the movable spraying clamping piece is fixedly provided with the spraying pipe and the spraying head, and the spraying head can be moved to spray the corn plant which is farthest in the spraying range of the lengthened spraying spray boom and can also spray the corn plant which is closer in the spraying range of the lengthened spraying boom even if the lengthened spraying boom is longer; the scheme of the fixed spraying hose of removal holder makes to remove the spraying holder and removes the in-process, and two spraying hoses that remove between the holder are corresponding to be buckled or extend, can not lead to the spraying hose to drop to subaerial problem because of removing when removing the inboard removal of spraying holder.

(4) According to the backpack spraying box, the burden reduction silica gel back plate is additionally arranged on the back of the backpack spraying box, the massage bag, the silica gel block and the soft waist pillow bag are arranged on the burden reduction silica gel back plate, the massage bag can support the back spine and the waist of an operator, the problems of excessive waist pressure and back strain of the operator caused by immediate work after a long-time standing are solved, and the operation comfort of the operator is more possibly improved.

Drawings

FIG. 1 is a front view of a pre-anthesis exogenous hormone spraying device for corn of the present invention;

FIG. 2 is a partial cross-sectional view of a pre-anthesis exogenous hormone spraying device for corn in accordance with the present invention;

FIG. 3 is a schematic structural view of a spiral mixing mechanism of the present invention;

FIG. 4 is a schematic view of the elongated spray boom of the present invention;

fig. 5 is a partial structural view of the inside of the extension bar of the present invention.

[ description of reference ]

1. A backpack spray box; 2. a liquid feed cap; 3. a handle; 4. a mixing mechanism; 5. an exogenous hormone delivery line; 6. a harness; 7. a fixed block; 8. an external equipment box; 9. spraying a hose; 10. a load-reducing silica gel backing plate; 11. a massage bag; 12. a silica gel block; 13. a soft waist pillow bag; 14. an exogenous hormone box; 15. a feeding cover of the exogenous hormone box; 16. a liquid storage chamber; 17. an exogenous hormone storage chamber; 18. a liquid outflow pipe; 19. an exogenous hormone dip tube; 20. a one-way valve; 21. a mixing tube; 22. a delivery pump; 23. a spiral mixing mechanism; 24. a mixing and homogenizing cavity; 25. a middle upright post; 26. a spiral plate; 27. a flow choking block; 28. lengthening a spray lance; 29. a grip; 30. a hand wheel; 31. lengthening a rod; 32. fixing the clamping piece; 33. moving the clamping member; 34. moving the spraying clamping piece; 35. spraying a pipe; 36. a spray head; 37. a lead screw; 38. smooth surface pole.

Detailed Description

For the purpose of better explaining the present invention and to facilitate understanding, the present invention will be described in detail by way of specific embodiments with reference to the accompanying drawings.

Please refer to fig. 1-2, which illustrate a preferred embodiment of the present invention: a spraying device for exogenous hormones before flowering of corn comprises a backpack spraying box 1. One side of backpack spraying case 1 inside is provided with liquid and stores chamber 16, and exogenous hormone case 14 is installed to the lower extreme of backpack spraying case 1, and the inside of exogenous hormone case 14 is provided with exogenous hormone and stores chamber 17, and exogenous hormone stores chamber 17 and adopts inert thermal insulation material to make, and liquid stores the lower terminal surface that chamber 16 and exogenous hormone stored chamber 17 and all sets up to the conical surface that makes the material can gather together to the centre. The lower end of the liquid storage cavity 16 is provided with a liquid outflow pipe 18, the middle of the exogenous hormone storage cavity 17 is provided with an exogenous hormone dip pipe 19, and the exogenous hormone dip pipe 19 penetrates out of the exogenous hormone box 14 and is connected and communicated with the liquid outflow pipe 18. A mixing pipe 21 is provided at one side of the liquid outlet pipe 18. Mixing mechanism 4 is installed to the inside opposite side of backpack spraying case 1, is provided with misce bene chamber 24 in the mixing mechanism 4, and mixing tube 21 is connected to this misce bene chamber 24's inside.

Referring to fig. 3, the spiral mixing mechanism 23 is installed inside the homogenizing chamber 24, the spiral mixing mechanism 23 includes a middle column 25, a spiral plate 26 and a choke block 27, the middle column 25 is located in the middle of the spiral plate 26, the choke block 27 is uniformly disposed on the surface of the spiral plate 26, and the spiral plate 26 is fixed to the middle column 25 and the inner wall of the homogenizing chamber 24. When the mixed liquid moves upwards along the spiral plate, water and exogenous hormone are fully stirred in the spiral process, and the pure water and the exogenous hormone are uniformly mixed under the action of the surfactant of the Tween-20.

As shown in fig. 1 and 2, the upper end of the mixing mechanism 4 is provided with an exogenous hormone delivery pipe 5, the exogenous hormone delivery pipe 5 is fixed with the backpack type spraying box 1 through a fixing block 7, the other end of the exogenous hormone delivery pipe 5 is connected with a delivery pump 22, one side of the delivery pump 22 is connected with a spraying hose 9, the spraying hose 9 is a rubber hose, and is corrosion-resistant and chemical-resistant, and has no influence on the activity of hormones. Referring to fig. 2, the check valves 20 are respectively installed between the mixing tube 21 and the liquid outlet tube 18 and between the exogenous hormone suction tube 19 and the liquid outlet tube 18, after a single spraying, when the delivery pump 22 is turned off, the mixed liquid in the spiral mixing mechanism 23 flows back and re-enters the mixing tube 21, and the check valve 20 at this position prevents the mixed liquid in the mixing tube 21 from flowing back, so that the mixed liquid which is started to be mixed is prevented from entering the exogenous hormone storage cavity to pollute the clean exogenous hormone. The one-way valve 20 at the upper end of the exogenous hormone dip pipe 19 can prevent liquid from entering the exogenous hormone storage cavity 17 to pollute the exogenous hormone, so that liquid components and high-concentration exogenous hormone liquid are thoroughly separated, the liquid components and the high-concentration exogenous hormone liquid can be quickly mixed and diluted when being sprayed, and the exogenous hormone stored when not being sprayed is higher in concentration, cannot be polluted or is reduced in activity due to hydrolysis.

Referring to fig. 1 and 4, the other end of the spraying hose 9 is connected with a lengthening spraying nozzle rod 28, after the normal spraying nozzle rod is lengthened, because the nozzle can not be adjusted, a nearby plant can be sprayed by contracting the elbow, the operation of an operator is not convenient enough, the lengthening spraying nozzle rod 28 comprises a lengthening rod 31, a handle 29 and a fixed clamping piece 32, the lengthening rod 31 is positioned on one side of the fixed clamping piece 32, the handle 29 is positioned on the other side of the fixed clamping piece 32, and the lengthening rod 31, the handle 29 and the fixed clamping piece 32 are fixed in a neighboring mode. The extension bar 31 is a hollow cylinder structure, a lead screw 37 is arranged in the extension bar, a hand wheel 30 is arranged at the other end of the handle 29, the hand wheel 30 and the lead screw 37 are fixedly connected in a synchronous rotation manner, and the lead screw 37, the handle 29 and the fixed clamping piece 32 are connected through bearings. The extension bar 31 is internally provided with a moving clamp 33 and a moving spray clamp 34 along the outside of the lead screw 37. Wherein, the one end of each removal holder 33 and removal spraying holder 34 passes through the nut with lead screw 37 respectively and is connected, and the nut spiro union is on lead screw 37, and one side welded connection of nut or this removal holder 33 of integrated connection and removal spraying holder 34. One side of the extension bar 31 is provided with an elongated slot extending along its length from which a movable clamp 33 and a movable spray clamp 34 protrude to the outside for clamping the fixed spray hose 9. Preferably, the movable clamping members 33 are provided in total three for clamping the middle position of the fixed spraying hose 9, and the number of the movable spraying clamping members 34 is 1 for clamping the position of the fixed spraying hose 9 near the end portion. The fixed clamping piece 32, the movable clamping piece 33 and the movable spraying clamping piece 34 are in omega shapes respectively composed of two symmetrical metal sheets, the spraying hose 9 penetrates through the middle of the omega shapes, and the tail ends of the omega shapes are locked by bolts. When the hand wheel 30 is turned, the movable clamping piece 33 and the movable spraying clamping piece 34 move up and down in the extension bar 31, and the spraying hose 9 is driven to move up or down along the extension bar 31 so as to be used for spraying corns with different heights. Wherein, spraying hose 9 is connected with atomising head 36 through a spraying pipe 35, and this spraying pipe 35 has the standard and connects, can dismantle fast and change atomising head 36, and spraying pipe 35 is made for hard material for fix the orientation of atomising head 36. The spray tube 35 is rigid, does not affect the flow of the liquid even if bent, and can fix the orientation of the spray head 36. Wherein, the spray surface of the spray head 36 is parallel to the extending direction of the extension bar 31.

As shown in fig. 5, the screw 37 includes a smooth rod 38, the smooth rod 38 is disposed on one side of the inside of the extension bar 31, and the length of the smooth rod 38 is equal to the total length of the 3 movable clamps 33.

Referring to fig. 1 again, the back of the backpack spraying box 1 is provided with a burden-reducing silica gel back plate 10, the burden-reducing silica gel back plate 10 is fixedly connected with the backpack spraying box 1, the surface of the burden-reducing silica gel back plate 10 facing one side of the human body is provided with a concave surface in the middle to meet the ergonomic principle of the back of the human body, the middle area of the surface of the burden-reducing silica gel back plate 10 is provided with an anti-skid massage bag 11, and two sides of the massage bag 11 are provided with silica gel blocks 12. A soft waist pillow bag 13 is arranged at the lower end between the backpack spraying box 1 and the burden-reducing silica gel back plate 10, and the soft waist pillow bag 13 is connected with the burden-reducing silica gel back plate 10 in a sticking way. Above-mentioned structure can support operating personnel's back backbone and waist position, reduces to stand for a long time and works immediately and cause operating personnel waist pressure too big, the problem of back strain, improves operating personnel operating comfort. The upper end and the lower end of the end face of the backpack spraying box 1 are connected with straps 6, the two ends of the straps 6 are positioned between the burden-reducing silica gel back plate 10 and the backpack spraying box 1, so that the joint part is hidden, the joint part is prevented from being directly contacted with the bone of the shoulder and the back of an operator, and the carrying experience is poor.

As shown in fig. 1, an external equipment tank 8 is provided at a lower end of one side of the backpack-type spraying tank 1, and a transfer pump 22 is located inside the external equipment tank 8, and a spraying hose 9 extends to the outside through the external equipment tank 8. One side of 14 upper ends of exogenous hormone case is provided with exogenous hormone case charging cap 15, and exogenous hormone case charging cap 15 passes through threaded connection with exogenous hormone case 14, and one side of 1 upper ends of backpack spraying case is provided with liquid and adds charging cap 2, and liquid adds charging cap 2 and backpack spraying case 1 and passes through threaded connection, and the centre of 1 upper ends of backpack spraying case is provided with handle 3.

Further, a manual pressurizing air pump may be provided in the extraneous source hormone tank 17 for assisting in pushing the extraneous source hormone to flow toward the extraneous source hormone dip tube 19. Transparent windows are arranged on the exogenous hormone box 14 and the exogenous hormone storage cavity 17, and the storage amount of the exogenous hormone can be observed from the outside. As to the control circuit portion of the delivery pump 22, which is not described in detail herein, a switch thereof may be provided on the grip 29. Further alternatively, a small pump is provided in the exogenous hormone suction pipe 19 and the mixing pipe 21, the small pump is exclusively used for sucking the exogenous hormone in the exogenous hormone tank 17, the small pump and the delivery pump 22 are controlled in a linkage manner, and a predetermined delay is provided with respect to the start of the delivery pump 22.

The working principle is as follows:

selecting a sunny and calm afternoon of 17:00-18:00 for spraying, opening the liquid feeding cover 2 to add pure water and tween-20 into the liquid storage cavity 16, opening the feeding cover 15 of the exogenous hormone box to add high-concentration exogenous hormone concentrated solution (or a small amount of pasty or pasty hormone prepared by adding a small amount of non-aqueous liquid in advance, and a small amount of antioxidant protective agent can be added) into the exogenous hormone storage cavity 17. An operator rotates the hand wheel 30, the spraying clamping pieces 34 are driven to move through the lead screws 37 to slide, the spraying heads 36 are moved to the positions above corn plants needing spraying, in the moving process of the spraying clamping pieces 34, the spraying hoses 9 between the two moving clamping pieces 33 are correspondingly bent or extended, and the lengthened spraying spray lance 28 and the horizontal plane form an angle of 45 degrees. The transfer pump 22 is started, so that the exogenous hormone in the exogenous hormone storage cavity 17 is adsorbed by the exogenous hormone dip tube 19 under the action of adsorption force to be mixed with the pure water and the Tween-20 in the liquid storage cavity 16, and then enters the uniform mixing cavity 24 through the mixing tube 21. Because of being provided with spiral mixing mechanism 23 in the misce bene chamber 24, spiral plate 26 and middle standing pillar 25 and the misce bene chamber 24 inner wall of spiral mixing mechanism 23 are fixed, consequently mixed liquid can spiral upward movement, stir pure water and exogenous hormone in the spiral in-process is equivalent to, under the surfactant action of tween-20, make pure water and exogenous hormone mix, there is the impact effect when the ascending mixed liquid of spiral collides bluff piece 27 at a high speed, under the effect of strikeing in succession that the spiral is the effect, mixed liquid is by the misce bene in the misce bene chamber, the spraying is carried out in back entering atomising head 36 through spraying hose 9. The operating personnel finishes with this maize plant spraying of two tunnel all around, rotate hand wheel 30 and remove atomising head 36 to the outside maize plant top of two tunnel needs spraying and carry out the spraying (after the single spraying, when closing delivery pump 22 switch, the mixed liquid can flow back in spiral mixing mechanism 23, re-enter mixing tube 21, the check valve 20 of this position prevents the mixed liquid backward flow in the mixing tube 21, it gets into the clean exogenous hormone of exogenous hormone storage intracavity pollution to avoid the mixed liquid that has begun to mix, it finishes to all the spraying of all maize plants, there is the rainfall in 24h after the spraying, then carry out the work of spouting supplementarily, the whole spraying work of maize plant is accomplished to spraying three days in succession.

Based on the device, the invention also provides a spraying method of the exogenous hormones before the corn blossoms, which comprises the following steps:

the method comprises the following steps: spraying 17:00-18:00 in the afternoon of clear and calm;

step two: opening the liquid feeding cover 2 to add pure water and tween-20 into the liquid storage cavity 16, opening the feeding cover 15 of the exogenous hormone box to add the high-concentration exogenous hormone concentrated solution (or paste-shaped or ointment-shaped concentrate) into the exogenous hormone storage cavity 17; the concentration of the selected Tween-20 is 0.01%.

Step three: an operator rotates the hand wheel 30, and drives the movable spraying clamping piece 34 to slide through the lead screw 37, so that the spraying head 36 is moved to the position above a corn plant to be sprayed, and the lengthened spraying spray lance 28 forms an angle of 45 degrees with the horizontal plane;

step four: starting the delivery pump 22, adsorbing the pure water and the tween-20 in the liquid storage cavity 16 and the exogenous hormone in the exogenous hormone storage cavity 17, mixing the pure water and the tween-20 in the liquid storage cavity and the exogenous hormone in the exogenous hormone storage cavity 17, and then feeding the mixture into the spray head 36 through the spray hose 9 for spraying;

step five: the operator finishes spraying the corn plants in the two surrounding paths, rotates the hand wheel 30 to move the spray head 36 to the upper part of the corn plants needing spraying on the outer side for spraying until all the corn plants are sprayed;

step six: when rainfall occurs within 24 hours after spraying, carrying out additional spraying work;

step seven: and spraying the corn plants for three days continuously to complete all spraying work of the corn plants.

It will be evident to those skilled in the art that the invention is not limited to the details of the foregoing illustrative embodiments, and that the present invention may be embodied in other specific forms without departing from the spirit or essential attributes thereof. The present embodiments are therefore to be considered in all respects as illustrative and not restrictive, the scope of the invention being indicated by the appended claims rather than by the foregoing description, and all changes which come within the meaning and range of equivalency of the claims are therefore intended to be embraced therein. Any reference sign in a claim should not be construed as limiting the claim concerned.

Claims (10)

1. The utility model provides a before maize flower exogenous hormone spraying device, includes backpack spraying case (1), its characterized in that: a liquid storage cavity (16) is arranged on one side inside the backpack spraying box (1), and an exogenous hormone box (14) is arranged at the lower end of the backpack spraying box (1);

an exogenous hormone storage cavity (17) is arranged inside the exogenous hormone box (14), the lower end faces of the liquid storage cavity (16) and the exogenous hormone storage cavity (17) are both conical surfaces which enable materials to gather towards the middle, a liquid outflow pipe (18) is installed at the lower end of the liquid storage cavity (16), an exogenous hormone suction pipe (19) is arranged in the middle of the exogenous hormone storage cavity (17), one end of the exogenous hormone suction pipe (19) penetrates into the exogenous hormone box (14), and the other end of the exogenous hormone suction pipe is communicated with the liquid outflow pipe (18); a mixing pipe (21) is arranged on one side of the liquid outlet pipe (18);

a mixing mechanism (4) is installed on the other side of the interior of the backpack spraying box (1), a uniform mixing cavity (24) is arranged in the mixing mechanism (4), a mixing pipe (21) is connected with the interior of the uniform mixing cavity (24), a spiral mixing mechanism (23) is installed in the uniform mixing cavity (24), and the spiral mixing mechanism (23) comprises a middle upright post (25), a spiral plate (26) and a flow blocking block (27); middle stand (25) are located the centre of spiral plate (26), and choked flow piece (27) set up on the surface of spiral plate (26), and spiral plate (26) and middle stand (25) are all fixed with the inner wall in misce bene chamber (24), the upper end of mixing mechanism (4) is provided with exogenous hormone eduction tube (5), exogenous hormone eduction tube (5) are fixed through fixed block (7) with backpack spraying case (1), the other end of exogenous hormone eduction tube (5) is connected with delivery pump (22), one side of delivery pump (22) is connected with spraying hose (9).

2. The spraying device for exogenous hormones before popcorn as claimed in claim 1, wherein: and one-way valves (20) are respectively arranged between the mixing pipe (21) and the liquid outlet pipe (18) and between the exogenous hormone suction pipe (19) and the liquid outlet pipe (18).

3. The spraying device for exogenous hormones before popcorn as claimed in claim 1, wherein: the other end of the spraying hose (9) is connected with a lengthened spraying spray rod (28), and the lengthened spraying spray rod (28) comprises a lengthened rod (31), a handle (29) and a fixed clamping piece (32); the fixed clamping piece (32) is fixedly arranged at one end of the extension bar (31) close to the grip (29); one end of the fixed clamping piece (32) is fixedly connected with the extension bar (31), and the other end clamps the spraying hose (9); one end of the spraying hose (9) is fixed on the extension bar (31) by means of the fixing clamp (32).

4. The spraying device for exogenous hormones before popcorn as claimed in claim 3, wherein: the interior of the extension bar (31) is a hollow cylinder, and a lead screw (37) is arranged in the hollow cylinder; a hand wheel (30) is mounted at the other end of the handle (29), the hand wheel (30) is synchronously and rotatably connected with a lead screw (37), and the lead screw (37) is connected with the handle (29) through a bearing;

one side of the extension bar (31) is provided with a slender cutting groove arranged along the length direction of the extension bar; the screw rod (37) is combined with a plurality of nuts, the nuts are respectively connected with a movable clamping piece (33), the nut positioned at the uppermost end of the screw rod (37) is connected with a movable spraying clamping piece (34), the outer end of each movable clamping piece (33) extends out of the elongated slot and is used for clamping the middle part of the fixed spraying hose (9), the outer end of each movable spraying clamping piece (34) extends out of the elongated slot and is used for clamping the position, close to the tail end, of the spraying hose (9), and the tail end of the spraying hose (9) is connected with a spraying head (36); the positions of the spraying hose (9) and the spraying head (36) are moved by rotating the hand wheel (30) so as to meet the spraying requirements of different heights.

5. The spraying device for exogenous hormones before popcorn as claimed in claim 4, wherein: the lead screw (37) comprises a smooth surface rod (38), the smooth surface rod (38) is arranged on one side inside the extension bar (31), and the length of the smooth surface rod (38) is equal to the total length of the three movable clamping pieces (33).

6. The spraying device for exogenous hormones before popcorn as claimed in claim 4, wherein: the spraying hose (9) is connected with the spraying head (36) through a spraying pipe (35); the movable spraying clamping piece (34) is used for clamping the spraying pipe (35), the spraying pipe (35) is a hard pipe, the outer diameter of the spraying pipe is larger than or equal to the inner diameter of the spraying hose (9), the spraying pipe (35) is sleeved inside the spraying hose (9) and is in tight fit connection, and sealing glue is adopted at a joint to strengthen sealing connection; the spraying pipe (35) has 90-degree bending arc and is connected with the spraying head (36), and the spraying surface of the spraying head (36) is parallel to the extension rod (31).

7. The spraying device for exogenous hormones before popcorn as claimed in claim 1, wherein: the back of the backpack spraying box (1) is provided with a load-reducing silica gel back plate (10), and the load-reducing silica gel back plate (10) is fixedly connected with the backpack spraying box (1); the middle area of the surface of the burden-reducing silica gel back plate (10) is set to be a concave surface, an anti-skidding massage bag (11) is arranged on the concave surface, silica gel blocks (12) are arranged on two sides of the massage bag (11), a soft waist pillow bag (13) is arranged at the lower end between the backpack spraying box (1) and the burden-reducing silica gel back plate (10), and the soft waist pillow bag (13) is connected with the burden-reducing silica gel back plate (10) in a sticking mode; the upper end and the lower end of the end face of the backpack spraying box (1) are connected with straps (6), and the two ends of the straps (6) are positioned between the burden-reducing silica gel back plate (10) and the backpack spraying box (1).

8. The spraying device for exogenous hormones before popcorn as claimed in claim 1, wherein: the spraying device is characterized in that an external equipment box (8) is arranged at the lower end of one side of the backpack spraying box (1), a conveying pump (22) is positioned inside the external equipment box (8), a spraying hose (9) penetrates through the external equipment box (8) and extends to the outside, an external hormone box feeding cover (15) is arranged at one side of the upper end of the external hormone box (14), the external hormone box feeding cover (15) is connected with the external hormone box (14) through threads, a liquid feeding cover (2) is arranged at one side of the upper end of the backpack spraying box (1), the liquid feeding cover (2) is connected with the backpack spraying box (1) through threads, and a handle (3) is arranged in the middle of the upper end of the backpack spraying box (1); the exogenous hormone is stored inside the exogenous hormone tank (14) in a highly concentrated liquid, paste or ointment-like charge.

9. The spraying device for exogenous hormones before popcorn as claimed in claim 1, wherein: a manual inflator is arranged at the exogenous hormone tank (14) and can boost the pressure of the exogenous hormone tank (14) to push the exogenous hormone to flow to the exogenous hormone dip tube (19).

10. A spraying method of exogenous hormones before flowering of corn is characterized by comprising the following steps:

the method comprises the following steps: spraying 17:00-18:00 in the afternoon of clear and calm;

step two: opening the liquid feeding cover (2) to add pure water and Tween-20 into the liquid storage cavity (16), opening the exogenous hormone box feeding cover (15) to add high-concentration liquid, pasty or ointment exogenous hormone into the exogenous hormone storage cavity (17);

the high-concentration liquid, pasty or ointment-like exogenous hormone is prepared by homogenizing and stirring solid exogenous hormone and a small amount of liquid to improve the fluidity and facilitate the absorption of the exogenous hormone by an exogenous hormone absorption tube (19);

step three: an operator rotates the hand wheel (30), the movable spraying clamping piece (34) is driven to slide through the lead screw (37), the spraying head (36) is moved to the position above a corn plant to be sprayed, and the angle between the lengthened spraying spray rod (28) and the horizontal plane is 45 degrees;

step four: starting the delivery pump (22), adsorbing pure water and tween-20 in the liquid storage cavity (16) and the exogenous hormone in the exogenous hormone storage cavity (17) out, mixing the pure water and tween-20 in the liquid storage cavity and the exogenous hormone in the exogenous hormone storage cavity, and then feeding the mixture into the spray head (36) through the spraying hose (9) for spraying;

step five: an operator finishes spraying the corn plants in the two paths around, rotates the hand wheel (30) to move the spraying head (36) to the upper part of the corn plants needing spraying on the outer side for spraying until all the corn plants are sprayed;

step six: when rainfall occurs within 24 hours after spraying, carrying out additional spraying work;

step seven: and spraying the corn plants for three days continuously to complete all spraying work of the corn plants.

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