CN113016761A

CN113016761A - Hand propelled spray lance spraying vehicle

Info

Publication number: CN113016761A
Application number: CN202110426150.9A
Authority: CN
Inventors: 徐杰柱
Original assignee: Foshan Yiben Agricultural Technology Co ltd
Current assignee: Foshan Yiben Agricultural Technology Co ltd
Priority date: 2021-04-20
Filing date: 2021-04-20
Publication date: 2021-06-25

Abstract

The invention discloses a hand-push type spray rod spraying vehicle, which comprises: the spraying device comprises a frame, a spraying device and an air pressurizing device; two wheels are arranged at the bottom of the front end of the frame, and a support frame is arranged at the bottom of the middle and rear ends of the frame; the wheel is provided with a rotating shaft which synchronously rotates, an air pressurizing device is arranged on the frame above the rotating shaft, a slider-crank mechanism is connected to the rotating shaft in a matching way, the rotating shaft and the slider-crank mechanism can synchronously rotate, the other end of the slider-crank mechanism is matched on the air pressurizing device, the slider-crank mechanism can drive the air pressurizing device to do linear reciprocating motion, and the slider-crank mechanism converts circular motion into linear motion; atomizer sets up on the frame, and atomizer includes the medical kit, spouts thick stick and dead lever, and the dead lever is installed in frame front end both sides, and fixed thick stick is used for fixed spray lance, and fixed thick stick height and width are spouted according to the plant size adjustment to fixed thick stick, can effectual solution spray inhomogeneous, spray the problem of inefficiency, improved work efficiency.

Description

Hand propelled spray lance spraying vehicle

Field of application

The invention relates to the field of agricultural pesticide spraying, in particular to a hand-push type spray rod spraying vehicle.

Background

China is a big country of agricultural production, and with the rapid development of the joyful country, the change of the planting mode promotes the rapid development of agricultural planting, but the problems of excessive pesticide use, low pesticide utilization rate and serious pesticide waste exist in the crop pest prevention and control process. To these problems, boom sprayer appears on the agricultural field of spraying gradually, the principle and the people's needs that combine the atomizer to spray, through improving, thereby spray the spraying vehicle has been formed, the atomizer is that the tubule formation high-speed rivers are impressed liquid medicine through air pressurization, high-speed rivers are touch the barrier and are split into vaporific water droplet after, thereby realize the even device of spraying on the plant of liquid medicine, boom spraying vehicle has and removes conveniently, wide spray width, spray evenly, spray efficient characteristics, become the main model of protection against insects and harm.

However, most of current agricultural sprayers adopt knapsack sprayers, the knapsack sprayers need manpower to bear weight, a large amount of manpower and energy need to be consumed, the labor intensity of people is increased, the work efficiency is reduced, secondly, the traditional knapsack sprayers are limited by a spraying technology, liquid medicine can be blocked by dense leaves at the top during spraying operation, and the liquid medicine is difficult to be sprayed to the crown and the back of the leaves, so that the defects of uneven spraying, low efficiency and serious pesticide waste exist during spraying operation. In addition, if the electric pump is adopted for spraying, the electric pump has the defects of high cost, heavy weight and low flexibility, and is not easy to accept by most common farmers.

Disclosure of Invention

The invention overcomes the defects of the prior art and provides a hand-push type spray rod spraying vehicle; in order to achieve the aim, the invention adopts the technical scheme that: a hand propelled boom spray vehicle, comprising: the spraying device comprises a frame, a spraying device and an air pressurizing device;

the bottom of the front end of the frame is provided with two wheels, the bottom of the middle and rear ends of the frame is provided with a support frame, the rear end of the frame is provided with a push handle, and a display meter is arranged on the push handle;

the wheel is provided with a rotating shaft which synchronously rotates, at least one air pressurizing device is arranged on the frame above the rotating shaft, a slider-crank mechanism is connected to the rotating shaft in a matching manner, the rotating shaft and the slider-crank mechanism synchronously rotate, the other end of the slider-crank mechanism is matched with the air pressurizing device, and the slider-crank mechanism drives the air pressurizing device to do linear reciprocating motion; the crank-slider mechanism converts the circular motion into a linear motion; the air pressurizing device and the crank sliding block mechanism provide pressure for the sealed medicine chest when working in a matching way;

spraying device sets up on the frame, and spraying device includes the medical kit, spouts thick stick and dead lever, and medical kit movable mounting is in the frame middle part, and the dead lever is installed in frame front end both sides, and the fixed thick stick is used for fixed spray lance, and the fixed thick stick is adjusted according to the plant size and is spouted thick stick height and width, spouts to be provided with a plurality of shower nozzle on the thick stick, and medical kit bottom both sides are provided with the cooperation structure.

In a preferred embodiment of the present invention, the slider-crank mechanism is provided with a driving connecting rod and a driven connecting rod, the connecting rods are connected by hinges, and the driving connecting rod drives the driven connecting rod to reciprocate.

In a preferred embodiment of the invention, the air pressurizing device is vertically arranged and comprises a plunger, a cylinder body and a one-way valve, wherein the plunger and the cylinder body form a sealed volume, the cylinder body is connected with the medicine box in a sealing mode through a hose, the hose is connected with the cylinder body and the medicine box in a sealing mode through threads, and a sealing ring is arranged at the inner end of the thread of the hose.

In a preferred embodiment of the invention, the cylinder body is provided with at least one small hole, the small hole is provided with a one-way valve, and the one-way valve is arranged between the cylinder body and the medicine chest.

In a preferred embodiment of the invention, the fixing rod is provided with a telescopic device which comprises a transverse telescopic device and a vertical telescopic device, and the telescopic device is used for adjusting the height and the width of the fixing rod.

In a preferred embodiment of the invention, the spray bar and the medicine chest are hermetically connected through a thread structure, the spray bar is fixed on the fixed bar through a buckle, the height and the width of the spray bar are adjusted according to the fixed bar, and the spray bar is provided with a switch for controlling the opening and the closing of the spray head.

In a preferred embodiment of the invention, the handle is provided with a pressure display meter, and the pressure meter is used for displaying the pressure value in the medicine chest.

In a preferred embodiment of the invention, the top of the medicine chest is provided with a pressure relief valve.

In a preferred embodiment of the invention, the medicine box is provided with a suction device, the handle is connected with the suction device through a steel wire, and the handle drives the suction device to work to provide pressure for the medicine box.

In a preferred embodiment of the invention, the middle rear end of the frame is provided with a support frame which is in a mountain-shaped structure.

According to the hand-push type spray rod spraying vehicle disclosed by the invention, the rotary motion of the wheels is utilized to drive the crank block mechanism to move and the air pressurizing device to work, so that the pressurizing process of the dosing tank is realized, and the hand-push type spray rod spraying vehicle is simple in structure, low in cost, light in weight, more flexible and more convenient; through being provided with telescopic machanism on the dead lever, height and width that can adjust at any time and spray can once only spout complete plant, make spray efficiency higher, spray more evenly, have reduced the pesticide waste.

Drawings

In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings of the embodiments can be obtained according to the drawings without creative efforts.

FIG. 1 is a schematic view of a boom spray vehicle;

FIG. 2 is a schematic view of a slider-crank mechanism;

FIG. 3 is a schematic view of a rod adjustment mechanism;

FIG. 4 is a cross-sectional view of a rod adjustment mechanism;

FIG. 5 is a schematic view of a linkage mechanism;

the reference numerals are explained below: 1. a slider-crank mechanism; 2. a wheel shaft; 3. an air pressurizing device; 4. a tapping port; 5. a spray nozzle; 6. a vertical telescopic mechanism; 7. an adjustment hole; 8. a transverse telescoping mechanism; 9. a spray rod; 10. fixing the rod; 11. a pressure relief valve; 12. a pressure gauge; 13. a push handle; 14. a grip; 15. a box cover; 16. a medicine chest; 17. a wheel; 18. a driving connecting rod; 19. a driven connecting rod; 20. a hinge; 21. a solid bar; 22. an adjustment hole; 23. a hollow shaft; 24. a slot-shaped hole; 25. a screw; 26. a nut; 27. a hose;

the specific implementation mode is as follows:

in order that the above objects, features and advantages of the present invention can be more clearly understood, the present invention will be further described in detail with reference to the accompanying drawings and the detailed description, wherein the drawings are simplified schematic drawings and only the basic structure of the present invention is illustrated schematically, so that only the structure related to the present invention is shown, and it is to be noted that the embodiments and features of the embodiments in the present application can be combined with each other without conflict.

In the description of the present application, it is to be understood that the terms "center," "longitudinal," "lateral," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," and the like are used in the orientation or positional relationship indicated in the drawings for convenience in describing the present application and for simplicity in description, and are not intended to indicate or imply that the referenced devices or elements must have a particular orientation, be constructed in a particular orientation, and be operated in a particular manner, and are not to be considered limiting of the scope of the present application. Furthermore, the terms "first," "second," and the like are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first," "second," etc. may explicitly or implicitly include one or more of that feature. In the description of the invention, the meaning of "a plurality" is two or more unless otherwise specified.

In the description of the present application, it is to be noted that, unless otherwise explicitly specified or limited, the terms "mounted," "connected," and "connected" are to be construed broadly, e.g., as meaning either a fixed connection, a removable connection, or an integral connection; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meaning of the above terms in the present application can be understood by those of ordinary skill in the art through specific situations.

To facilitate an understanding of the invention, the invention will now be described more fully with reference to the accompanying drawings. Preferred embodiments of the present invention are shown in the drawings. This invention may, however, be embodied in many different forms and should not be construed as limited to the embodiments set forth herein. Rather, these embodiments are provided so that this disclosure will be thorough and complete.

As shown in fig. 1-2, the invention discloses a hand-push type spray rod 9 spraying vehicle, which comprises a vehicle frame, a spraying device and an air pressurizing device 3.

The trolley frame is provided with two wheels 17, the wheels 17 are provided with rotating shafts 2 which rotate synchronously, the rotating shafts 2 are connected with slider-crank mechanisms 1 in a matched mode, the rotating shafts 2 rotate synchronously with the slider-crank mechanisms 1, the trolley frame is provided with air pressurizing devices 3, the other ends of the slider-crank mechanisms 1 are matched with the air pressurizing devices 3, the slider-crank mechanisms 1 drive the air pressurizing devices 3 to do linear reciprocating motion, the slider-crank mechanisms 1 convert circular motion into linear motion, and the air pressurizing devices 3 and the slider-crank mechanisms 1 provide pressure for the sealed medicine boxes 16 when working in a matched mode.

Preferably, the air pressurizing means is a plunger pump; the crank sliding block mechanism 1 comprises a driving connecting rod 18 and a driven connecting rod 19, and the driving connecting rod 18 is connected with the driven connecting rod 19 in a hinge manner; two ends of the driving connecting rod 18 are respectively connected with the rotating shaft 2 and the driven connecting rod 19 in a matching way, and one end of the driven connecting rod is connected with the plunger rod in a matching way.

After a user pushes the trolley, the rotating shaft 2 on the wheels 17 rotates, the rotating shaft 2 drives the driving connecting rod 18 to do circular motion, the driving connecting rod 18 drives the driven connecting rod 19 to do arc-shaped up-and-down swinging motion, the driven connecting rod 19 drives the plunger rod to do linear reciprocating motion, when the plunger rod moves upwards, the cylinder body sucks air, external air flows into the cylinder body, when the plunger rod moves downwards, the cylinder body exhausts the air, the air in the cylinder body flows into the sealed medicine box 16, the pressure of the medicine box 16 is increased, and therefore the spraying function is achieved. Therefore, a user only needs to add liquid medicine into the medicine box 16, the medicine box 16 is loaded on the trolley, the trolley is slightly lifted, the trolley is pushed, the plant can be sprayed, the traditional backpack type hand-cranking method is not needed to be used for spraying the liquid medicine, the weight of the liquid medicine is not needed to be born by manpower, a large amount of working intensity can be reduced, and efficient spraying can be achieved. Meanwhile, the pressurization is realized by adopting a motor pump instead of an electric pump, the structure is simple, the cost is greatly reduced while the whole weight is reduced, and the common farmer user can accept the pressure-increasing device more easily.

As shown in fig. 1-4, the spraying device is arranged on the vehicle frame, the spraying device comprises a medicine box 16, a spray bar 9 and fixing rods 10, the fixing rods 10 are arranged on two sides of the front end of the vehicle frame, the fixing rods 10 are used for fixing the spray bar 9, the fixing rods 10 adjust the height and the width of the spray bar 9 according to the size of a plant, a plurality of spray heads 5 are arranged on the spray bar 9, and the spray heads 5 are regularly arranged on the spray bar 9.

It should be noted that the fixing rod 10 is provided with a transverse adjusting mechanism 8 and a vertical adjusting mechanism 6, the adjusting mechanism has two parts, one part is a round solid rod 21, and at least two fixing holes 22 are regularly arranged on the solid rod 21; the other part is a circular hollow rod 23, the hollow rod 23 is regularly provided with at least two groove-shaped adjusting holes 24, and the solid rod 21 and the hollow rod 23 can be movably matched.

When a user needs to spray higher plants such as corns, the hollow rod 23 is fixed on the two sides of the front end of the frame, the screws 25 are detached, then the solid rods 21 are adjusted to be proper in height and width, the screws 25 penetrate through the fixing holes 22 and the adjusting holes 24 and are locked by the nuts 26, finally the spray rod 9 is fixed on the fixing rod 10 through the buckles, the spray head 9 is fixed on the spray rod 9 in an n shape, and the spraying can be finished by pushing one vehicle. Therefore, the spray head can cover the whole corn when spraying, can spray the front side of corn leaves and the back side of the corn leaves, and can spray the whole corn once, so that the spraying efficiency is improved, the spraying is more uniform, and the insecticidal effect is better. When the user need spray two lines of corns simultaneously, open the switch on the spray bars of both sides simultaneously can, when the user only need spray a line of corns, only need close the switch on the spray bar of opposite side can. This scheme is through the height and the width of adjustment spray lance 9, can spray polytype plant, simultaneously, can spray by the single file, also can spray by the double row, makes spray efficiency higher, sprays more evenly, has reduced the extravagant degree of pesticide, has reduced the pollution to the environment.

Preferably, the spray bar is a flexible hose of gum.

The slider-crank mechanism 1 is provided with a driving connecting rod 18 and a driven connecting rod 19, the driving connecting rod 18 is connected with the driven connecting rod 19 through a hinge 20, and the driving connecting rod 18 can drive the driven connecting rod 19 to move back and forth.

It should be noted that, when the trolley works on a corn field, the road is uneven, the shaking generated by the wheel rotating shaft 2 is large, preferably, one end of the driving connecting rod 18 and the wheel rotating shaft are in interference fit, and the interference fit has the advantages of simple structure, good centering performance of the shaft and the hole, high bearing capacity and high working reliability in high vibration strength, so that the trolley is more suitable for working on the corn field with rugged ground, and the service life is prolonged. After the transition of initiative connecting rod 18, driven connecting rod 19 receives the influence of vibrations to reduce, and driven connecting rod 19's vibrations degree is less than initiative connecting rod 18 vibrations degree relatively, and is preferred, and driven connecting rod 19 adopts transition fit's cooperation mode with the plunger rod, and interference fit has accurate location, the convenient advantage of dismantling, so, driven connecting rod 19 can more steadily drive the plunger rod and be straight reciprocating motion, also easily change after the plunger pump damages, has improved the practicality. The driving connecting rod 18 and the driven connecting rod 19 are connected by a hinge connection, so that the driving connecting rod 18 can drive the driven connecting rod 19 to move, and the replacement is convenient.

Preferably, the driving link 18 and the driven link 19 are in the shape of a rectangular bar.

The vertical setting of air pressure device 3, including plunger, cylinder body and check valve, the plunger forms sealed volume with the cylinder body, and the cylinder body passes through hose 27 and medical kit 16 sealing connection, and the cylinder body is provided with and is no less than a aperture, be provided with the check valve on the aperture, be provided with the check valve between cylinder body and medical kit 16, hose 27 passes through screw thread sealing connection with cylinder body and medical kit 16, hose 27 screw thread inner is provided with the sealing washer.

It should be noted that the air pressurizing device 3 is vertically arranged, so as to be conveniently matched with the slider-crank mechanism 1 for work. The suction valve and the exhaust valve of the air pressurizing device 3 are both one-way valves, the plunger and the cylinder body form a sealed volume, when the plunger is pulled outwards, the pressure in the cylinder body is reduced, the exhaust valve is closed, the intake valve is opened, and the air enters the cylinder body; when the plunger is pushed inwards, the pressure in the cylinder body is increased, the air inlet valve is closed, the air outlet valve is opened, and air enters the medicine box 16 along the pipeline of the hose 27. In this way, the slider-crank mechanism 1 drives the plunger to continuously reciprocate linearly, thereby continuously pressurizing the medicine-feeding box 16. Hose 27 both ends all are the helicitic texture, and inside is provided with the sealing washer, and this structure can effectually prevent that gas from leaking, influences the pressurization and sprays the process.

The fixed bar is provided with a telescopic device 6, the telescopic device 6 can adjust the height and width of the fixed bar 10.

It should be noted that the fixing lever 10 includes: hollow rod 23 and solid core rod 22, hollow rod 23 pass through the fixed mode of bolt to be fixed on the frame, when the user need not use the dolly to spout the medicine, alright dismantle solid core rod 22 earlier, again hollow rod 23 lift off can, when needing to use alright easily adorn, reduced the user because store the influence that highly inconvenient brought, the user of being convenient for stores.

The spray bar 9 and the medicine chest 16 are connected in a sealing manner through a thread structure, the spray bar 9 is fixed on the fixing bar 10 through a buckle, the height and the width of the spray bar 9 can be adjusted according to the fixing bar 10, and the spray bar 9 is provided with a switch for controlling the opening and closing of the spray head 5.

It should be noted that the spray rod 9 and the medicine box 16 are connected in a threaded connection mode, and the inner end of the thread of the spray rod 9 is provided with a sealing ring, so that the leakage of the liquid medicine can be effectively prevented, and the pesticide leakage waste is avoided. Spray lance 9 utilizes the buckle to fix on dead lever 10, can pull down spray lance 9 when need not use the dolly to spray and roll up the storage, and the customer of being convenient for stores, has improved user experience. Spray lance 9 can be according to dead lever 10 height-adjusting and width, is applicable to multiple type plant, and application range is wider. A switch for controlling the opening and closing of the spray nozzles is arranged between the spray rod 10 and the medicine chest 16, so that the switch can be closed when spraying is not needed, the spray nozzles can stop working, and the spraying can be controlled to perform single-line or double-line spraying, so that various working conditions are met.

The medicine chest 16 is provided with a suction device, a handle 14 is arranged below the push handle 13, the handle 14 is connected with the suction device through a steel wire, the handle 14 can drive the suction device to work to provide pressure for the medicine chest 16, a pressure gauge 12 is arranged on the handle 14, and the pressure gauge 12 is used for displaying the pressure value of the inside of the medicine chest 16.

It should be noted that, in the process of spraying corn, after the spraying time is too long, the user may need to rest, at this time, the user only needs to stop the trolley and close the spray head, but after the user has had a rest, the pressure of the medicine box 16 may be insufficient, before starting the trolley, the user can first observe whether the pressure value of the pressure gauge 12 is large enough, when the pressure gauge 12 displays that the pressure is insufficient, the user can first pull the handle 14, pull the handle 14 to drive the suction device to work, pressurization of the medicine box 16 can also be realized, after pulling the handle 14 for a period of time, when the pressure value is sufficient, the spray head switch is opened, spraying can be immediately performed, and thus, the problem that the spraying range is insufficient due to the insufficient pressure of the medicine box 16 after the rest is avoided. When spraying the maize, spray the back of a line, the dolly needs turn, and the user also can give the case pressurization through pulling handle 14 to guarantee the scope of spraying and spray efficiency, avoided the condition that needs repeated back and forth spraying, can satisfy multiple condition demand.

The top of the medicine box 16 is provided with a pressure release valve 11. When the user does not reach the farm land and works, the spray head is closed, the pressure in the medicine box 16 is increased continuously at this time, the pressure release valve 11 is arranged at the top of the medicine box 16, and when the pressure of the medicine box 16 reaches a certain degree, the pressure release valve 11 releases the pressure in the medicine box 16, so that the situation that the medicine box 16 explodes due to excessive pressure is avoided, and the safety of operators is guaranteed.

The front end of the frame is provided with two wheels, and the middle rear end of the frame is provided with a support frame which is of a mountain-shaped structure.

The point to be described is that the rear end of the frame is not provided with wheels and is arranged into a supporting frame structure, when the corn is sprayed on narrow farmland, a user only needs to hold the push handle 13 tightly to slightly lift the spraying vehicle, so that the spraying vehicle can be moved, when one line of corn is sprayed, and when the other line of corn needs to be sprayed, the vehicle rotates 90 degrees in situ to push the vehicle to continuously spray, so that the other line of corn can be sprayed, compared with a four-wheel structure, the two-wheel structure spraying vehicle can easily turn in the narrow farmland such as the corn field, the friction of the vehicle in the other two-wheel structure is small, and the burden of the user can be reduced to the maximum extent. When the user need have a rest, put down the push handle that lifts up gently, let the support frame land can, the rear end carriage can effectively solve the dolly and stop the problem of keep balance and support when stopping, so, the spraying vehicle is also convenient nimble in labour saving, and user experience is better.

The hollow rod 23 and the solid rod 21 are provided with guide mechanisms, the hollow rod 23 is provided with a concave cuboid, and the solid rod 21 is provided with a convex cuboid.

It should be noted that the hollow rod 23 and the solid rod 21 are provided with the guiding mechanism, when the user mounts and removes the fixing rod 10, the concave-convex long body is only required to be aligned and mounted, and the concave-convex cuboid of the hollow rod 23 and the convex-convex cuboid of the solid rod play a guiding role, so that the adjusting hole 22 and the slot-shaped hole 24 are concentric, and thus, the user can easily mount the screw, the problem that the adjusting hole is not aligned with the slot-shaped hole is avoided, and the time is saved.

The medicine chest 16 is movably mounted on the frame. The medicine box 16 is fixed to the frame by a snap, and when the user does not need to spray, the medicine box 16 can be detached, so that the cart with the medicine box 16 detached can be used for carrying articles such as crops, and is flexible, convenient and multipurpose.

Besides the crank-slider mechanism, the crank-slider mechanism can also be a link mechanism as shown in fig. 5, and the specific implementation process is as follows:

the connecting rod mechanism comprises a piston 31, the piston 31 is connected with a connecting rod 32 through a pin, the connecting rod 23 is movably matched with a sliding block 33, and a fixed shaft 30 is arranged on the sliding block 33.

The trolley is characterized in that two wheels 17 are arranged on the trolley frame, the wheels 17 are provided with rotating shafts 2 which rotate synchronously, the rotating shafts 2 are connected with the fixed shaft 30 in a matching mode, when a user pushes the trolley, the wheels 17 can drive the fixed shaft 30 to rotate after rotating, the fixed shaft 30 can drive the sliding block 33 to rotate together, and then the connecting rod 32 can drive the piston 31 to reciprocate under the driving of the sliding block 33.

The piston 31 and the cylinder body form a sealed space, the cylinder body is arranged in an inverted manner, and the piston 31 matched in the cylinder body can do linear reciprocating motion under the rotation of the wheels 17, so that the process of pressurizing the medicine box 16 can be realized by pushing the trolley, and the spraying to plants can be finished as well.

The above examples only show some embodiments of the present invention, and the description thereof is more specific and detailed, but not construed as limiting the scope of the invention. It should be noted that, for a person skilled in the art, several variations and modifications can be made without departing from the inventive concept, which falls within the scope of the present invention. Therefore, the protection scope of the present patent shall be subject to the appended claims.

Claims

1. A hand propelled boom spray vehicle, comprising: the spraying device comprises a frame, a spraying device and an air pressurizing device; it is characterized in that the preparation method is characterized in that,

the bottom of the front end of the frame is provided with two wheels, the bottom of the middle rear end of the frame is provided with a support frame, the rear end of the frame is provided with a push handle, and the push handle is provided with a pressure gauge;

the vehicle wheel is provided with a rotating shaft which synchronously rotates, at least one air pressurizing device is arranged on the vehicle frame above the rotating shaft, the rotating shaft is connected with a slider-crank mechanism in a matching way, and the rotating shaft and the slider-crank mechanism synchronously rotate; at least one air pressurizing device is arranged on the frame above the rotating shaft, the other end of the slider-crank mechanism is matched with the air pressurizing device, and the slider-crank mechanism drives the air pressurizing device to do linear reciprocating motion; the crank-slider mechanism converts circular motion into linear motion; the air pressurizing device and the crank sliding block mechanism are matched to work to provide pressure for the sealed medicine chest;

the spraying device is arranged on the frame and comprises a medicine box, a spraying bar and fixing rods, the fixing rods are installed on two sides of the front end of the frame and used for fixing the spray rod, the height and the width of the spraying bar are adjusted according to the size of a plant, and a plurality of spray heads are arranged on the spraying bar.

2. The hand propelled boom spray vehicle of claim 1, wherein: the crank slider mechanism is provided with a driving connecting rod and a driven connecting rod, the driving connecting rod is connected with the driven connecting rod through a hinge, and the driving connecting rod drives the driven connecting rod to move back and forth.

3. The hand propelled boom spray vehicle of claim 1, wherein: the air pressurization device is vertically arranged and comprises a plunger, a sealed volume is formed between the plunger and a cylinder body, the cylinder body is in sealed connection with the medicine box through a hose, the hose is in sealed connection with the cylinder body and the medicine box through threads, and a sealing ring is arranged at the inner end of the thread of the hose.

4. The hand propelled boom spray vehicle of claim 3, wherein: the cylinder body is provided with at least one aperture, the aperture is provided with the check valve, the cylinder body with be provided with the check valve between the medical kit.

5. The hand propelled boom spray vehicle of claim 1, wherein said fixed bar is provided with telescoping means, including lateral and vertical adjustment means, for adjusting said fixed bar height and width.

6. The hand-push type spray lance vehicle according to claim 1, wherein the spray lance is connected with the medicine tank in a sealing manner through a threaded structure, the spray lance is fixed on the fixing lance through a buckle, the height and the width of the spray lance are adjusted according to the fixing rod, and a switch for controlling the spray nozzle to open and close is arranged on the spray lance.

7. The hand-push type spray lance vehicle according to claim 1, wherein the push handle is provided with a pressure display meter, and the pressure display meter is used for displaying the pressure value in the pesticide box.

8. The hand propelled boom spray vehicle of claim 7, wherein said medicine chest top is provided with a pressure relief valve.

9. The hand-push type spray lance vehicle according to claim 1, wherein the pesticide box is provided with a suction device, a handle is arranged below the push handle, the handle is connected with the suction device through a steel wire, and the handle drives the suction device to work to provide pressure for the pesticide box.

10. The hand-push type spray lance vehicle as claimed in claim 1, wherein a support frame is arranged at the bottom of the rear end of the vehicle frame, and the support frame is of a "mountain" shaped structure.