CN212184825U

CN212184825U - Half-width scanning and spraying assembly for low-stalk crops

Info

Publication number: CN212184825U
Application number: CN201922271585.1U
Authority: CN
Inventors: 徐元章; 刘丽娥
Original assignee: Fuzhou Fengrui Ecological Technology Co ltd
Current assignee: Fuzhou Fengrui Ecological Technology Co ltd
Priority date: 2019-12-18
Filing date: 2019-12-18
Publication date: 2020-12-22
Anticipated expiration: 2029-12-18

Abstract

The utility model discloses a half-width scanning and pesticide spraying assembly for low-stalk crops, which mainly comprises a power spraying machine, a cultivation row, a connecting rubber pipe, an operator, a front holding rod, a side holding rod, a hanging strip, a reinforcing rib, a circular spray head, a fan-shaped spray head, a spray rod, a detachable spray rod, a hoop, a slotted holding pipe, a holding pipe non-slot end, a long slotted hole, a circular spray amplitude combination, a fan-shaped spray amplitude combination, an extended high-pressure rubber pipe (a common part) and a motor-driven spraying machine (a common part); the special static spray pattern that sprays the subassembly scanning be greater than single operation target area width, the operator of marcing in low stalk crop rectangular pieces of land in a field ditch relies on the special speed of marcing that sprays the subassembly of holding unidirectional motion, controls the special deposit density and the degree of consistency of the droplet of these scanning shower nozzle spraying of spraying the subassembly on the cultivation line of planting, the utility model discloses both can be applied to southern mountain area hilly farmland, also can be applied to northern flat dam plain farmland, avoided the conventional expense medicine of spouting medicine method and supporting machines, take water, take a lot of work, spout again and leak and spout the scheduling problem.

Description

Half-width scanning and spraying assembly for low-stalk crops

Technical Field

The utility model relates to a medicine subassembly is spouted in scanning of low stalk crop half width belongs to agricultural plant protection and spouts medicine technical equipment field.

Background

For a long time, hillsThe level of agricultural mechanization in mountainous areas is far behind that in plain flat dam areas. Although the development is faster in recent years, the short plate is still the biggest short plate of the agricultural organization in China. The pesticide variety, the pesticide using technology and the plant protection machine are three major factors in the plant disease and insect pest prevention and control work, and the importance of selecting the pesticide variety is emphasized in agricultural production at home and abroad for many years, while the importance of the pesticide using technology and the plant protection machine is ignored: due to the improvement of pesticide science and technology, the insecticidal activity of the recent deltamethrin pesticide is improved by 1600 times compared with that of DDT pesticide in the fortieth century, but the dosage of the field active ingredient of the former pesticide is only 1/50 of the latter pesticide, so that the problems of labor waste, pesticide consumption, water consumption, poor control effect and the like exist in the use process of the pesticide. The modern foreign pesticide application technology and the matched medical instruments thereof develop along the aspects of accuracy, low capacity, high concentration, targetability and automation, advanced 'accurate spraying' technology is researched and applied in the last 70 th century, for example, developed countries such as the United states select different spraying technologies and medical instruments according to different crop varieties and different growth stages thereof, the pesticide application work is standardized, team occupation and field standardization are managed, and 'very specialized, all legal, machine and tool modernization and index internationalization' are achieved. The agricultural plant protection mechanical equipment in China is in a relatively laggard state, a systematic subject is not formed, technical equipment is lacked, except that agricultural pesticide spraying mechanization is already carried out in plain areas in the north, the agricultural pesticide spraying mechanization level in hills and mountainous areas in the south of China is still weak, farmers or planting bases which cannot realize large-scale plant protection mechanization often purchase a pesticide spraying machine and a spray nozzle thereof to package and spray all crops all the year round, the pesticide cannot be applied according to agricultural characters or cultivation characteristics displayed by different crops or different crop growth stages, one plant protection machine is only suitable for protecting a plurality of crops due to the limitation of self structure and configuration, the conventional pesticide spraying method for the low-stalk crops is that one spray nozzle is used for spraying pesticide to and fro in a circulating and reciprocating mode on the left side and the right side of a low-stalk crop row, the labor cost and the pesticide waste water and the environmental pollution are serious, the problems of heavy spraying and missed spraying are difficult to avoid, and the prevention effect is poor, so that the reuse, abuse and indiscriminate use of pesticides are caused. According to measurement and calculation, the conventional spraying method only comprises20-30% of pesticide is sprayed on a crop target, only 1% of the pesticide really plays a role in prevention and control, and other liquid medicine is completely lost to the environment to cause pollution, so that a series of problems and consequences such as environmental pollution, insect and disease resistance and rampant regeneration are generated, the improvement of the scientific and technological level of the 'pesticide use technology' and 'plant protection machinery' has extremely important significance and great potential for the current agricultural production, and the requirement that the pesticide application needs to be reduced and enhanced is provided for the competent department of the industry in China. Among the methods of using pesticides, spraying is the most common method, and in the classification of spraying modes, targeted spraying is the current relatively reliable and technically mature mode. Under the limitation of the current technical equipment conditions, crops with different agronomic characters are usually selected and matched with two sprayers for spraying, the static spraying width of a sprayer is only fixed, when an operation target is larger than the static spraying width of the sprayer, the sprayer needs to swing left and right in a reciprocating mode to increase the spraying width while moving, the movement mode of the sprayer is a composite type movement with the functions of reciprocating and periodically changing directions and forward moving, the distance of the operator in the back-and-forth operation on a target area is reduced, the sedimentation density of a medicine in the target area is controlled by depending on two variables of the left-and-right swinging speed of the sprayer and the moving speed of a machine tool, the sprayer is called as a swinging spraying method for convenience, the sprayer is called as a swinging spraying sprayer, and the relationship between the movement track, the direction and the target width is shown in figure 1. As can be seen from FIG. 1, in order to better search the intrinsic regularity of the zigzag swinging spraying method and facilitate the explanation, it is assumed that the left and right swinging amplitudes of the operator are equal, the forward speeds of the operator and the spray head are all uniform, ef is the width of the target area of the single operation (dynamic spraying amplitude of the single operation of swinging spraying), the static spraying amplitudes xy, AB and MN of the swinging spraying spray head are the intersecting lines of the spraying amplitude of the swinging spraying spray head on the upper side of the swinging spraying amplitude, AB and MN are the intersecting lines of the spraying amplitude of the swinging spraying spray head on the lower side of the swinging spraying amplitude, and for the convenience of explanation, only S framed by the dashed parallelogram on the left side of FIG. 1 is selected_ANanThe regional target is used as a research part for measurement and calculation, and C in the figure 1 is an area S_abGHeavy spray zone and constant value, C = C₁=C₂=C₃=C₄L is the area S_bagAnd constant value, L = L₁=L₂D is a single spray zone (target zone sprayed only once) and is constant, D = D₁=D₂=D₃According to the basic definition of geometry with respect to area, then

Total area S of target region_ANan= S_BGM+S_bqm+S_ABg+S_abG+S_MNq+S_mnQ+S_agBG+S_bGMq+S_mqNQ

= L₁+L₂+C₁+C₂+C₃+C₄+D₁+D₂+D₃

=2S_BGM+3S_agBG+4S_ABg=2L+4C+3D

According to the formula S_ANanAmong the regions, the region sprayed one time by the oscillating spray method has S in total_agBG+S_bGMq+S_mqNQ= D₁+D₂+D₃=3S_agBG=3D

The spray head is at S_ANanThe area sprayed by the heavy spray area in the area has 2S_ABg+2S_abG+2S_MNq+2S_mnQ=2C₁+2C₂+2C₃+2C₄=8S_ABg

S_ANanThe region has S in common in the region of the missing nozzle_BGM+S_bqm=L₁+L₂ =2S_BGM

As can be seen from figure 1, the heavy spray area is inevitable when the swing spraying method is used for spraying pesticide, the missed spray area is difficult to avoid in the countless times of spraying pesticide in the reciprocating swing spraying method operation of a field, the smaller the missed spray area is, the larger the heavy spray area is, the smaller the area for spraying single time is, until the bqm three-point coincidence is that the R and BGM three-point coincidence is R, the missed spray area and the single spray area are not available, and S is the time when S is used for spraying pesticide_ANanThe regions are all divided into 2C₁+2C₂+2C₃+2C₄Four re-spraying areas; in the travel trajectory of the reciprocating oscillating spray head of fig. 1: the static spray width xy (i.e. the distance between the aA and the bB) of the reciprocating spray nozzle is small, and in order to reduce the number of spraying back and forth, the reciprocating spray nozzle must be periodically oscillated back and forth to reduce the number of spraying back and forthThe sprayer moves to spray the spraying target in a swinging way to increase the width ef (namely the distance between AB and AB) of the target area in single operation, the travel track of the sprayer is a curve in a zigzag shape (also called a zigzag ruler type), and the period of a left-right reciprocating swinging spraying method is that the point B is coincided with the point M and the point B is coincided with the point M to avoid the phenomenon that the area is S_BGMThe "blow-out region" L of (1) but it is difficult to eliminate the area S in any operation_ABgThe "re-spraying zone" C, i.e. having an area S_ABgThe area C of the re-spraying area is sprayed for 2 times in the period of a reciprocating swing spraying method, and the area is S_BGMThe area of the 'missed spray area' L is infinitely small until bqm points coincide and BGM points coincide to form the standard swinging spray state of fig. 3, the defect that the 'missed spray area' L influences the prevention effect in the conventional left-right reciprocating spray method can be overcome, but the area of the're-spray area' C reaches the maximum at the moment, and as a result, except for the initial and final half spray amplitude, other spray target areas are sprayed with the pesticide twice by the reciprocating swinging spray nozzles in opposite directions, so that the requirements of comprehensive prevention and treatment and no missed spray can be met. In summary, the technical characteristics of the swing spraying method are as follows: 1. The static spray amplitude xy of the reciprocating swinging spray head is smaller than the target width of single operation; 2. the sprayer swings left and right in a reciprocating manner to increase the spraying amplitude while moving, the movement mode of the sprayer is a compound movement with the functions of reciprocating, periodically turning and forward moving, and the moving track of the sprayer is a folding ruler type (also called a zigzag curve); 3. controlling the sedimentation density of the medicine in a target area by depending on two variables of the left-right swinging speed of the spray head and the advancing speed of a machine tool (or an operator); 4. the technology is difficult to avoid the problems of re-spraying and missing spraying, and in order to ensure that the target area cannot be missed, the spray head must travel more than 2 times back and forth on the target area per unit area, namely, the total area of labor, medicine, water and spraying must be doubled (re-sprayed once) to eliminate the swingThe problem of missing spraying in the dynamic spraying method is the phenomenon that the reciprocating swing spraying method requires to spray the target again when the target is required to be sprayed completely. The swinging spraying method inevitably has a heavy spraying area and an unavoidable leaking spraying area, the uniformity and the density of the sprayed medicament are difficult to control, and the control effect is poor, so the spraying efficiency of the reciprocating swinging spraying nozzle with low efficiency is reduced by times and the effect is poor due to the phenomenon, and as the agronomic characters and characteristics of plants such as plant types, height, leaf types, leaf potential, cultivation directions, conditions of land and field are varied, a spraying device cannot adapt to efficient, accurate, convenient and economical spraying of all kinds of plants, so that the research and development of efficient and accurate spraying methods and machines aiming at different agronomic characters and avoiding heavy spraying and leaking spraying are urgently needed at home and abroad.

Disclosure of Invention

The utility model aims to provide a half-width scanning and pesticide spraying component for scanning and spraying pesticide for low-stalk crops.

The utility model aims at realizing the half-width scanning and pesticide spraying component for the low-stalk crops, which comprises a special spraying component matched with a power sprayer or a motor-driven sprayer, wherein the special spraying component mainly comprises a connecting rubber tube, a front holding rod, a side holding rod, a hanging strip, a reinforcing rib, a circular spray head, a fan-shaped spray head, a detachable spray rod, a hoop, a slotted holding pipe, a holding pipe non-slotted end and a long slotted pipe; the power spraying machine is characterized in that a connecting rubber pipe is a circular nozzle or a fan-shaped nozzle to convey high-pressure liquid medicine to atomize and spray crop targets, the right end of a holding rod is vertically welded with the upper end of a side holding rod, a long open groove of a slotted holding pipe faces downwards, the lower end of the side holding rod is welded with a non-groove end of the slotted holding pipe, the upper end of a reinforcing rib is welded with the lower part of the side holding rod, the lower end of the reinforcing rib is welded with the right side of the long open groove arranged on the slotted holding pipe, the right end of the long open groove arranged on the slotted holding pipe is provided with a hoop, and more than 2 circular nozzles or more than;

the circular spray head or the fan-shaped spray head on the detachable spray rod faces downwards and is aligned with the long open groove, the left end of the detachable spray rod is inserted into and clamped with the right side of the open groove holding pipe, the detachable spray rod inserted into the open groove holding pipe can rotate freely to adjust the orientation and the spraying direction of the circular spray head or the fan-shaped spray head, a butterfly nut of the hoop is screwed, the inner diameter of the hoop is reduced, the left side of the detachable spray rod can be fixed in the open groove holding pipe, and the front holding rod, the side holding rod, the reinforcing rib, the detachable spray rod, the hoop and the open groove holding pipe are connected into a firm whole; the left end of the sling is fixed on the left side of the front holding rod, the sling crosses the back of the shoulder of an operator, and the right end of the sling is fixed on the right side of the detachable spray rod.

The left end of the slotted holding pipe is of a tubular structure, the right end of the slotted holding pipe is provided with a long slot and a hoop, and the elastic hoop can enable the right end of the slotted holding pipe to expand the inner diameter or reduce the inner diameter in a long slotted area, so that the detachable spray rod can be conveniently inserted or detached.

The special spraying component controls high-pressure liquid medicine output from the power spraying machine to reach the special spraying component through the liquid medicine switch and then shunts the liquid medicine to the spray head, the static spraying amplitude xy scanned by the special spraying component is larger than the width of spraying operation on the low-stalk crop target, the strip-shaped fog drop spreading area generated by the spray head of the special spraying component completely covers the crown face of the low-stalk crop plant, the spray head of the special spraying component does not need to swing, only the space relative position of the spray head of the special spraying component to the low-stalk crop needs to be kept unchanged, an operator controls the special spraying component and controls the fog drop covering density of the low-stalk crop target by the advancing speed of the special spraying component, the advancing tracks of the spray heads of all the spraying components participating in the scanning and spraying operation are in a straight line or a curve, the efficient, accurate and uniform and comprehensive scanning and spraying of the low-stalk crops are realized, the control effect is improved, and the medicine cost of a device used, Water and labor are wasted, heavy spraying and missed spraying are avoided.

The utility model discloses the plant agronomic characteristics characteristic of change has been studied, the drawback to the device that sprays the method and use with the swing of conventionality has been proposed the scanning and has been spouted the new technology and the machines of medicine method (this specification is in order to describe the name conveniently, be different from foretell conventionality "swing spray method", lower with), see figure 2, can see by figure 2, static spray width xy that the shower nozzle was greater than single operation target region width ef when the medicine method was spouted in the scanning, the shower nozzle is unanimous with machines advancing direction, only do one-way motion.

The scanning and spraying component is technically characterized in that: 1. the static spray amplitude of the spray head is more than or equal to the pesticide receiving surface of the crop target, and the spray head can be swung to and fro left and right to spray pesticide on the pesticide receiving surface of the crop in a full-covering manner; 2. the movement direction of the spray head is consistent with the advancing direction of the machine tool (or an operator), the spray head moves in a single direction, and the advancing track of the spray head for the scanning and spraying operation is in a straight line; 3. the density deposition of the fog drops on the target by the spray head is controlled by the variable of the travel speed of the spray head and a machine tool (or an operator), so that uniform deposition is easy to realize; 4. the operation area of the nozzle in the process of spraying is larger than or equal to the operation target area, and the target area can be sprayed once in a process of spraying without re-spraying or missing spraying; the scanning and spraying assembly overcomes all the defects of the device used by the conventional swinging spraying method, and can ensure that the target is scanned and sprayed efficiently, accurately and uniformly in the surrounding area, thereby saving manpower, pesticide and water source.

The utility model discloses a characteristics and advantage are: the common stretcher type motor-driven spraying machine, the knapsack liquid pump spraying machine or the knapsack electric spraying machine (hereinafter referred to as the power spraying machine) is matched with a special spraying assembly to carry out multi-row scanning spraying on the low-stalk crops, and a control switch of the spraying machine is arranged on a handle and is used for controlling the pressurizing operation or the stop of the spraying machine. The high-efficiency and accurate scanning and spraying technology for multi-row low-stalk crops can be realized by combining the special spraying assembly with the operation technology: the utility model can be applied to hilly farmland in southern mountainous areas and can also be applied to plain farmland in northern flat dams, the spray head of the special spraying component can be kept unchanged in the spatial relative position corresponding to multiple rows of low-stalk crops by operating the special spraying component and controlling the fog drop coverage density of the low-stalk crop row target by the advancing speed of the spray head, so that the scanning spraying of multiple rows of low-stalk crops can be realized efficiently, accurately and uniformly, the prevention and control effect is improved, and the problems of drug cost, water consumption, labor consumption, heavy spraying, missed spraying and the like of a device used in a conventional spraying method can be avoided, the technical bottleneck that the agricultural pesticide spraying plant protection mechanization in the southern hilly and mountainous areas of China cannot realize the large-scale plant protection mechanization can be solved, the short plates of the agricultural pesticide spraying plant protection mechanization in the southern hilly and mountainous areas can be filled up, and the plant protection mechanization according to local conditions can be realized in the mountainous areas and the plain.

The essential difference between the scanning spraying assembly and the conventional swinging spraying device adopted by the utility model is that: the static spray amplitude xy of a spray head of a swing spraying method is smaller than the pesticide receiving surface of a crop target, in order to cover the whole target, the spray head must be swung left and right to spray pesticide receiving surface in a reciprocating manner, the movement direction of the spray head is inconsistent with the advancing direction of an operator and belongs to compound movement, the advancing track of the spray head is a folding ruler type curve or even a complex arc curve, and the target with large area is sprayed by the spray head must be swung left and right repeatedly for countless times, so that the problems of pesticide expense, water consumption, labor waste, heavy spraying, missed spraying and the like which cannot be avoided by a device used by a conventional pesticide spraying method are caused; the scanning and spraying assembly is characterized in that the static spraying amplitude xy of the spray head is larger than or equal to the width ef of a target area of single operation, the spray head can be fully covered to spray the pesticide on the pesticide receiving surface of the crop without swinging leftwards and rightwards in a reciprocating mode, the moving direction of the spray head is consistent with the moving direction of an operator and belongs to one-way motion, the moving track of the scanning and spraying operation spray head is a straight line or a simple curve consistent with the center line of the crop cultivation walking direction, and the scanning and spraying of the target in an efficient, accurate and uniform and all-round mode can be guaranteed, so that manpower, pesticides and water sources are.

Drawings

FIG. 1 is a schematic diagram of a re-spraying area and a leakage spraying area of a conventional reciprocating spraying method.

FIG. 2 is a schematic diagram of the scanning spray of the present invention.

FIG. 3 is a top view of the first structure of the half-scan pesticide spraying assembly for long stalked crops of the present invention.

Fig. 4 is a top view of the second structure of the half-scan pesticide spraying assembly for long stalked crops of the present invention.

Fig. 5 is an installation diagram of the second dedicated spraying assembly structure in fig. 4.

FIG. 6 is a partially enlarged bottom view of the hoop, grooved pipe, non-grooved end of pipe and long groove of FIG. 4.

FIG. 7 is a schematic view of scanning and spraying in the field in FIG. 3.

FIG. 8 is a schematic view of scanning and spraying in the field in FIG. 4.

Detailed Description

The present invention will be described in detail with reference to the accompanying drawings 2-8 and this embodiment, as shown in fig. 2, the present invention adopts a component suitable for scanning and spraying to perform half-width scanning and spraying of long-stalked crops, the static spraying width xy scanned by the nozzle is greater than the target area width ef of single operation, when spraying, the scanning nozzle can cover the crop target completely without swinging to increase the spraying width, the moving direction of the nozzle is consistent with the moving direction of the operator, the deposition density and uniformity of the fog drops sprayed by the nozzle on the target are controlled by the unidirectional movement of the moving speed of the operator holding the nozzle, the moving track of the nozzle for scanning and spraying operation is a straight line or a simple curve consistent with the center line of the crop cultivation and walking; the static spraying amplitude xy of the reciprocating swinging spray head of the conventional spraying method is smaller than the width ef of a target area of single operation, the spray head needs to move forward and swing back and forth on the left side and the right side in a circulating and reciprocating mode to spray, the spray head needs to do composite motion in the longitudinal direction and the transverse direction, so that the deposition density and the uniformity of fog drops sprayed by the reciprocating swinging spray head on a target are difficult to control, and the problems of heavy spraying and missed spraying are difficult to avoid.

As shown in attached figures 3-8, the half-width scanning and spraying assembly for the low-stalk crops uses a conventional stretcher type motor-driven spraying machine (simply called as a motor-driven spraying machine), a knapsack liquid pump spraying machine or a knapsack electric spraying machine (simply called as a power spraying machine) as main matched power, comprises a special spraying assembly which is controlled by an operator 2 and matched with the power spraying machine 1 (or the motor-driven spraying machine), and mainly comprises the power spraying machine 1, cultivation rows 1-1, connecting rubber pipes 1-2, the operator 2, a front holding rod 3, side holding rods 3-1, a sling 4, a reinforcing rib 5, a circular nozzle 6, a fan-shaped nozzle 6-1, a spray rod 7, a detachable spray rod 7-1, a hoop 7-2, a slotted holding pipe 7-3, a holding pipe non-slotted end 7-4, a long slotted 7-5 and a circular spraying width combination 8, The fan-shaped spraying amplitude combination is 8-1, a lengthened high-pressure rubber pipe (a common part) and a motor-driven spraying machine (a common part); the static state that special spraying assembly scanned spout width xy and be greater than single operation target area width ef, a plurality of scanning shower nozzles side by side in the special spraying assembly when spouting the medicine keep unchangeable to the angle of spraying of two lines of more than low stalk crop targets: the side-by-side scanning spray heads in the special spraying assembly comprise a circular spray head 6 and a fan-shaped spray head 6-1, the side-by-side scanning spray heads are always consistent with the advancing direction of an operator 2 and move in a unidirectional mode during spraying, and the operator 2 advancing in the furrow of the low-stalk crops controls the deposition density and uniformity of fog drops sprayed by the scanning spray heads of the special spraying assembly on the planted cultivation rows 1-1 by means of the advancing speed of the special spraying assembly which is held by the operator 2 and moves in the unidirectional mode; the special spraying assembly adopts one of the following 3 structures:

1) the structure I is as follows:

mainly comprises a cultivation row 1-1, a connecting rubber pipe 1-2, an operator 2, a front holding rod 3, a side holding rod 3-1, a hanging strip 4, a reinforcing rib 5, a circular spray head 6, a fan-shaped spray head 6-1, a spray rod 7, a circular spray width combination 8 and a fan-shaped spray width combination 8-1; the power sprayer 1 delivers high-pressure liquid medicine to the circular spray head 6 or the fan-shaped spray head 6-1 through the connecting rubber pipe 1-2 to spray crop targets in an atomizing manner, the right end of the front holding rod 3 is vertically welded with the upper end of the side holding rod 3-1, the lower end of the side holding rod 3-1 is welded with the left end of the spray rod 7, a reinforcing rib 5 is arranged at the lower part of the side holding rod 3-1 and the left side of the spray rod 7, more than 2 circular spray heads 6 or fan-shaped spray heads 6-1 are arranged below the spray rod 7 at equal intervals, the strip-shaped fog droplet diffusion area formed by more than 2 circular spray heads 6 or fan-shaped spray heads 6-1 arranged below the spray rod 7 at intervals is a circular spray amplitude combination 8 or a fan-shaped spray amplitude combination 8-1, and the total width of the circular spray amplitude combination 8 or the fan-shaped spray amplitude combination 8-1 is the static spray amplitude xy scanned by the special spray assembly; the left end of the sling 4 is fixed on the left side of the front holding rod 3, the sling 4 crosses the shoulders of the operator 2 and then is fixed on the right side of the spray rod 7, and the sling 4 can bear the weight of the front holding rod 3, the side holding rod 3-1, the sling 4, the reinforcing rib 5, the circular spray head 6, the fan-shaped spray head 6-1 and the spray rod 7, so that the hands of the operator 2 who holds the front holding rod 3 and the side holding rod 3-1 by the left hand and the right hand are not easy to fatigue; the power spraying machine 1 and the special spraying assembly are connected through the connecting rubber pipe 1-2, an operator 2 bears the back and starts the power spraying machine 1 to operate the special spraying assembly, and then the high-efficiency scanning and spraying operation can be simultaneously carried out on the cultivation rows 1-1 of the low-stalk crops.

2) The structure II is as follows: the device mainly comprises a cultivation row 1-1, a connecting rubber pipe 1-2, an operator 2, a front holding rod 3, a side holding rod 3-1, a hanging strip 4, a reinforcing rib 5, a circular spray head 6, a fan-shaped spray head 6-1, a detachable spray rod 7-1, a hoop 7-2, a slotted holding pipe 7-3, a non-slotted end 7-4 of the holding pipe, a long slotted 7-5, a circular spray width combination 8 and a fan-shaped spray width combination 8-1; the power spraying machine 1 is used for conveying high-pressure liquid medicine to a circular spray head 6 or a fan-shaped spray head 6-1 through a connecting rubber pipe 1-2 to spray crop targets in an atomizing mode, the right end of a holding rod 3 is vertically welded with the upper end of a side holding rod 3-1, a long notch 7-5 of a slotted holding pipe 7-3 faces downwards, the lower end of the side holding rod 3-1 is welded with a pipe holding non-groove end 7-4 of the slotted holding pipe 7-3, the upper end of a reinforcing rib 5 is welded with the lower portion of the side holding rod 3-1, the lower end of the reinforcing rib 5 is welded with the right side of the long notch 7-5 arranged on the slotted holding pipe 7-3, the right end of the long notch 7-5 arranged on the slotted holding pipe 7-3 is provided with hoops 7-2 at equal intervals, and more than 2 circular spray heads 6 or fan-shaped spray heads: more than 2 circular spray heads 6 or more than 2 fan-shaped spray heads 6-1 are arranged below the detachable spray rod 7-1, the diffused area of the strip-shaped fog drops formed by more than 2 circular spray heads 6 or fan-shaped spray heads 6-1 arranged below the detachable spray rod 7-1 at intervals is a circular spray amplitude combination 8 or a fan-shaped spray amplitude combination 8-1, and the total width of the circular spray amplitude combination 8 or the fan-shaped spray amplitude combination 8-1 is a static spray amplitude xy scanned by the special spraying assembly;

after a circular spray head 6 or a fan-shaped spray head 6-1 on a detachable spray rod 7-1 faces downwards and is aligned with a long open slot 7-5, the left end of the detachable spray rod 7-1 is inserted and clamped from the right side of a slot holding pipe 7-3, the detachable spray rod 7-1 inserted into the slot holding pipe 7-3 can rotate freely to adjust the orientation and the spraying direction of the circular spray head 6 or the fan-shaped spray head 6-1, then a butterfly nut of an anchor ear 7-2 is screwed, the inner diameter of the anchor ear 7-2 is reduced, and the left side of the detachable spray rod 7-1 is fixed in the slot holding pipe 7-3, so that the front holding rod 3, the side holding rod 3-1, the reinforcing rib 5, the detachable spray rod 7-1, the anchor ear 7-2 and the slot holding pipe 7-3 are connected into a firm whole; the left end of a sling 4 is fixed on the left side of a front holding rod 3, the sling 4 crosses the shoulders of an operator 2 and then is fixed on the right side of a detachable spray rod 7-1, and the sling 4 can bear the weight of the front holding rod 3, the side holding rod 3-1, the sling 4, a reinforcing rib 5, a circular spray head 6, a fan-shaped spray head 6-1, the detachable spray rod 7-1 and a slotted holding tube 7-3, so that the two hands of the operator 2 who holds the front holding rod 3 and the side holding rod 3-1 by the left hand and the right hand are not easy to fatigue; the detachable spray rod 7-1 of the second structure can be detached from the slotted holding pipe 7-3, and is convenient to store and keep. The power spraying machine 1 and the special spraying assembly are connected through the connecting rubber pipe 1-2, an operator 2 bears the back and starts the power spraying machine 1 to operate the special spraying assembly, and then the high-efficiency scanning and spraying operation can be simultaneously carried out on the cultivation rows 1-1 of the low-stalk crops.

The first structure adopts a structure that a spray rod 7, a side holding rod 3-1 and a reinforcing rib 5 are fixedly welded; the structure II adopts a structure that the slotted holding pipe 7-3, the side holding rod 3-1 and the reinforcing rib 5 are fixedly welded, and the detachable spray rod 7-1 can enable the spray head to be downwards inserted into the slotted holding pipe 7-3 and locked by the hoop 7-2. The front holding rod 3 and the side holding rod 3-1 of the structure I or the structure II can form a Z-shaped structure with the spray rod 7 or the detachable spray rod 7-1. After the lower end of the side holding rod 3-1 of the structure I or the structure II is fixedly welded with the left end of the spray rod 7 in a right angle, one end of a reinforcing rib 5 is welded at the middle part of the side holding rod 3-1, and the other end of the reinforcing rib is welded at the left side of the spray rod 7 or welded at the right side of the slotted holding pipe 7-3 of the structure II. The left end of the slotted holding pipe 7-3 of the second structure is of a tubular structure, the right end of the slotted holding pipe 7-3 is provided with a long slot 7-5 and an anchor ear 7-2, and the anchor ear 7-2 is loosened to enlarge or reduce the inner diameter of the right end of the slotted holding pipe 7-3 in the area of the long slot 7-5, so that the detachable spray rod 7-1 can be conveniently inserted or removed.

3) The structure is three: the multifunctional power sprayer is characterized by consisting of a whole set of special spraying assembly with a first structure or a second structure and a lengthened high-pressure rubber pipe (a common part), a stretcher type motor-driven sprayer (a common part) needs to be matched, a backpack type power sprayer matched with the first structure or the second structure is not used, the lengthened high-pressure rubber pipe is connected between a connecting rubber pipe 1-2 in the special spraying assembly with the first structure or the second structure and the stretcher type motor-driven sprayer with the volume and the power larger than that of the backpack type power sprayer, the stretcher type motor-driven sprayer is placed on a ridge or a road beside a field, and 1 auxiliary operator assists in nursing the stretcher type motor-driven sprayer and takes charge of retracting the lengthened high-pressure rubber pipe; after an assistant operator starts a stretcher type motor-driven sprayer, the operator 2 carries out scanning and pesticide spraying operation on the low-stalk crops, the operator 2 controls the special spraying assembly of the structure I or the structure II to return to the starting point along the same furrow when spraying to the end of the cultivation row 1-1, so that the scanning and pesticide spraying are carried out on the low-stalk crops on the left side and the right side of the same furrow, and then the furrow in which a new target area without pesticide spraying on the two sides is located is changed to restart pesticide spraying.

In summary, the following steps: the special spraying component adopts one of the following 3 structures: the structure I, the structure II or the structure III, and 3 structural types can adopt a circular spray head or a fan-shaped spray head; the first structure adopts a structure that a spray rod 7, a side holding rod 3-1 and a reinforcing rib 5 are fixedly welded; the structure II adopts a structure that the slotted holding pipe 7-3, the side holding rod 3-1 and the reinforcing rib 5 are fixedly welded, and the detachable spray rod 7-1 can enable a spray head to be downwards inserted into the slotted holding pipe 7-3 and locked by a hoop 7-2; the left end of the slotted holding pipe 7-3 is of a tubular structure, the right end of the slotted holding pipe is provided with a long slot 7-5 and a hoop 7-2, and the hoop 7-2 is tightened to enable the right end of the slotted holding pipe 7-3 to expand the inner diameter or reduce the inner diameter in the area of the long slot 7-5, so that the detachable spray rod 7-1 can be conveniently inserted or detached. The front holding rod 3 and the side holding rod 3-1 of the structure I or the structure II can form a Z-shaped structure with the spray rod 7 or the detachable spray rod 7-1; the left end of the sling 4 is fixed on the left side of the front holding rod 3, the sling 4 crosses the shoulders of the operator 2, and the right end of the sling 4 is fixed on the right side of the spray rod 7; after the lower end of the side holding rod 3-1 of the structure I or the structure II is fixedly welded with the left end of the spray rod 7 in a right angle, one end of a reinforcing rib 5 is welded at the middle part of the side holding rod 3-1, and the other end of the reinforcing rib is welded at the left side of the spray rod 7 or welded at the right side of the slotted holding pipe 7-3 of the structure II.

The half-width scanning and pesticide spraying component of the low-stalk crops carries out scanning and pesticide spraying by matching a conventional stretcher type motorized sprayer, a backpack liquid pump sprayer or a backpack electric sprayer with a special spraying component, the special spraying component keeps consistent with the advancing direction of an operator during pesticide spraying operation, the advancing track of a nozzle of the scanning and pesticide spraying operation is in a straight line or is superposed with the central line 1-1 of a cultivation line of the low-stalk crops in a curve shape, the uniformity of sprayed pesticide fog drops and the target hitting rate are improved, the pollution and waste of pesticides to the environment are reduced, the symptomatic pesticide spraying is truly realized, the high-efficiency, accurate and uniform scanning and comprehensive pesticide spraying of the low-stalk crops, especially the closed growth stages (low-stalk crops such as rice, sweet potatoes, green leaves and nursery stocks and the like) is realized, and the working efficiency can be improved by more than 6 times compared with the common backpack manual sprayer (the type industrial farm-16), water conservation, economize medicine and improve the prevention and cure effect of plant diseases and insect pests, the expense of having avoided the device that the conventional medicine method of spouting used, take water, take a lot of work, heavily spout and leak and spout the scheduling problem, solve the tradition and spout the environmental pollution that the technology and plant protection machinery fall behind and lead to, disease and insect resistance and regeneration rampant a series of difficult problems such as rampant, the utility model discloses both can be applied to southern mountain area hills farmland, also can be applied to northern flat dam plain farmland, can solve the technical bottleneck that china's southern hills mountain area agriculture that can't realize large-scale plant protection mechanization spouts plant protection mechanization, fill up southern hills mountain area agricultural plant protection mechanization's "short slab" of spouting for china's mountain area and plain can both realize the plant protection mechanization of making things in place.

Claims

1. A half-width scanning and pesticide spraying assembly for low-stalk crops comprises a special spraying assembly matched with a power sprayer (1) or a motor-driven sprayer, wherein the special spraying assembly mainly comprises a connecting rubber pipe (1-2), a front holding rod (3), a side holding rod (3-1), a hanging strip, a reinforcing rib (5), a circular spray head (6), a fan-shaped spray head (6-1), a detachable spray rod (7-1), a hoop (7-2), a slotted holding pipe, a pipe holding non-slotted end (7-4) and a long slotted pipe (7-5); it is characterized in that a power sprayer (1) is a round nozzle (6) or a fan-shaped nozzle (6-1) through a connecting rubber pipe (1-2) to deliver high-pressure liquid medicine to atomize and spray crop targets, the right end of a holding rod (3) is vertically welded with the upper end of a side holding rod (3-1), a long open slot (7-5) of a slotted holding pipe (7-3) faces downwards, the lower end of the side holding rod (3-1) is welded with a non-slot end (7-4) of the slotted holding pipe (7-3), the upper end of a reinforcing rib (5) is welded with the lower part of the side holding rod (3-1), the lower end of the reinforcing rib (5) is welded with the right side of the long open slot (7-5) arranged on the slotted holding pipe (7-3), the right end of the long open slot (7-5) arranged on the slotted holding pipe (7-3) is provided with a hoop (7-, more than 2 circular spray heads (6) or more than 2 fan-shaped spray heads (6-1) are arranged below the detachable spray rod (7-1);

after a circular spray head (6) or a fan-shaped spray head (6-1) on the detachable spray rod (7-1) faces downwards and is aligned with a long slot (7-5), the left end of the detachable spray rod (7-1) is inserted into and clamped with the right side of a slot embracing pipe (7-3), the detachable spray rod (7-1) inserted into the slot embracing pipe (7-3) can rotate freely to adjust the orientation and the spraying direction of the circular spray head (6) or the fan-shaped spray head (6-1), a butterfly nut of the hoop (7-2) is screwed, the inner diameter of the hoop (7-2) is reduced, the left side of the detachable spray rod (7-1) can be fixed in the slot embracing pipe (7-3), and therefore the front holding rod (3), the side holding rod (3-1), the reinforcing ribs (5), the detachable spray rod (7-1), the hoop (7-2), The slotted holding pipes (7-3) are connected into a firm whole; the left end of the sling (4) is fixed at the left side of the front holding rod (3), the sling (4) crosses the back of the shoulder of the operator (2), and the right end of the sling (4) is fixed at the right side of the detachable spray rod (7-1).

2. The half-width scanning pesticide spraying assembly for the long stalked crops as claimed in claim 1, wherein the left end of the slotted holding pipe (7-3) is of a tubular structure, the right end is provided with the long slot (7-5) and the anchor ear (7-2), and the anchor ear (7-2) is tightened to enable the right end of the slotted holding pipe (7-3) to expand or reduce the inner diameter in the area of the long slot (7-5) so as to be convenient for inserting or removing the detachable spray lance.