CN111109234A

CN111109234A - Be applicable to likepowder volatile pesticide booster-type powder spray device

Info

Publication number: CN111109234A
Application number: CN202010076497.0A
Authority: CN
Inventors: 徐东才
Original assignee: 徐东才
Current assignee: JIANGSU DONGNAN PLANT PROTECITON Co.,Ltd.
Priority date: 2020-01-23
Filing date: 2020-01-23
Publication date: 2020-05-08
Anticipated expiration: 2040-01-23
Also published as: CN111109234B

Abstract

The invention discloses a supercharged powder spraying device suitable for powdery volatile pesticides, which comprises an operation box, wherein an energy storage box and a material storage box are fixed at the upper end of the operation box, a scattering box is fixed on the side wall of the energy storage box, the scattering box is positioned right above the material storage box, an air inlet groove is formed in one end, far away from the material storage box, of the energy storage box in a penetrating mode, an air pump is fixed on the inner wall of the air inlet groove, and two air injection holes and two air outlet holes are formed in one end, close to the material storage box, of the energy storage box. Has the advantages that: through air pump gas, realized spraying of powder, utilize the impact of air current to make the bull stick rotate simultaneously, and then under each drive disk assembly's combined action, effectual transport, the scattering and the stirring of having accomplished the powder for the control of whole process is very convenient, does not need too much operation, only need as required select the blowout hole can, pump gas efficiency through adjusting the air pump can realize the regulation to whole spraying efficiency, easy operation is convenient for control.

Description

Be applicable to likepowder volatile pesticide booster-type powder spray device

Technical Field

The invention relates to the technical field of agricultural planting, in particular to a pressurized powder spraying device suitable for powdery volatile pesticides.

Background

The pesticide is chemical for preventing and controlling diseases and pests and regulating plant growth. The product is widely used for agriculture, forestry and animal husbandry production, environmental and household sanitation pest and disease control, industrial product mildew and moth prevention and the like; in the agricultural production process, in order to ensure the thriving and bearing of plants, necessary pesticide needs to be applied to eliminate the damage of pests to the plants, so that the pesticide has an important effect in the agricultural production process;

the spraying process of present pesticide generally has dedicated sprinkler, and spray to likepowder volatile pesticide at present, the fine spraying of powder goes out often when can not, because the piling up of powder agglomerates easily, make the powder be difficult to refine when spraying, make the powder spray the back can not guarantee the degree of consistency, make and spray the effect relatively poor, and its control structure of present device is complicated, difficult operation, can not be convenient effectively spray, need for one kind can refine the powder and the likepowder pesticide sprinkler of being convenient for control.

Disclosure of Invention

The invention aims to solve the problems that in the prior art, the spraying effect is poor, and powder is easy to agglomerate in the spraying process to cause uneven spraying, and provides a pressurized powder spraying device suitable for powdery volatile pesticides.

In order to achieve the purpose, the invention adopts the following technical scheme: a supercharged powder spraying device suitable for powdery volatile pesticides comprises an operation box, wherein an energy storage box and a material storage box are fixed at the upper end of the operation box, a scattering box is fixed on the side wall of the energy storage box, the scattering box is positioned right above the material storage box, an air inlet groove is formed in one end, far away from the material storage box, of the energy storage box in a penetrating mode, an air pump is fixed on the inner wall of the air inlet groove, two air injection holes and two air outlet holes are formed in one end, close to the material storage box, of the energy storage box, the two air injection holes are respectively positioned right above the two air outlet holes, the inner walls of the two air injection holes are respectively connected with a rotating plate in a rotating mode through a torsion spring, plug blocks abut against the inner walls of the two air outlet holes, a feeding plug is inserted into the upper end of the material storage box, a conveying pipe extending into the scattering box is inserted into the side wall of the material storage box in a, the upper end of the middle rotating shaft is fixed with a packing auger rotating shaft which is positioned inside the conveying pipe, the material storage box is internally provided with a feeding mechanism, the scattering box is internally provided with a scattering mechanism, and the operation box is internally provided with a driving mechanism.

In foretell be applicable to likepowder volatility pesticide pressure-charged powder spray device, actuating mechanism includes and rotates drive shaft and the connecting axle of being connected with the incasement bottom of operation, the upper end of drive shaft is fixed with the bull stick, the bull stick runs through the upper end lateral wall of operation case and extends to in the energy storage case, the bull stick is located one section circumference lateral wall of energy storage incasement portion and is fixed with a plurality of commentaries on classics leaves, the upper end lateral wall of operation case is run through and extends to the storage incasement portion in the upper end of connecting axle, the drive shaft passes through the driving band with the well pivot and is connected, the well pivot is connected through the well pivot with the connecting axle.

In foretell be applicable to likepowder volatile pesticide pressure-charged formula device of dusting, the pay-off structure is including being fixed in the transportation guide block of storage incasement bottom, transportation guide block upper end is the inclined plane, the connecting axle runs through the transportation guide block and upwards extends, the circumference lateral wall of connecting axle is fixed with a plurality of plectrums, the lateral wall of transportation pipe runs through and has seted up a plurality of delivery openings, the delivery opening is located the lower extreme of transportation pipe.

In foretell be applicable to likepowder volatile pesticide pressurized-type powder spray device, the upper end of transportation guide block is fixed with the mounting panel, the lateral wall of mounting panel runs through and is fixed with the installation axle, the one end that the installation axle is close to the connecting axle is fixed with driven gear, the lateral wall of connecting axle is fixed with the driving gear with driven gear engaged with, driven gear and driving gear are the helical gear, the circumference lateral wall that connecting axle one end was kept away from to the installation axle is fixed with a plurality of stirring boards, every the one end that the installation axle was kept away from to the stirring board has all been seted up and has been accomodate the groove, every the interior bottom of accomodating the groove all is fixed with extension spring, every the one end that extension spring kept away from the installation axle all is fixed.

In foretell be applicable to likepowder volatile pesticide supercharged powder spraying device, bulk cargo mechanism is including being fixed in the incasement wall that scatters the diffusion guide block, the upper end of diffusion guide block is the inclined plane, the transport pipe runs through the diffusion guide block, the top of the case that scatters is rotated and is connected with the tape spool, the bottom of drive and the upper end fixed connection of auger pivot, the inner wall of the case that scatters rotates and is connected with the (mixing) shaft, the circumference lateral wall of (mixing) shaft is fixed with a plurality of puddlers, the tape spool passes through the stirring band with the (mixing) shaft and is connected.

In the supercharged powder spraying device suitable for the powdery volatile pesticide, the inner top of the scattering box is rotatably connected with a plurality of blowing shafts, the bottom of each blowing shaft is fixedly provided with a fan blade, and the plurality of blowing shafts are connected with the belt shaft through connecting belts.

In foretell be applicable to likepowder volatility pesticide booster-type powder spraying device, the lower extreme lateral wall of the case that falls scattered runs through and is fixed with the release pipe that two symmetries set up, the upper end lateral wall of storage case runs through and is fixed with the back flow that two symmetries set up, two release pipe and two back flow one-to-ones are located directly over the corresponding back flow, two release pipe and two fumaroles and two ventholes one-to-one.

Compared with the prior art, the invention has the advantages that:

1. according to the invention, the air pump pumps air to realize the spraying of the powder, the rotating rod is rotated by utilizing the impact of the air flow, and further, the conveying, scattering and stirring of the powder are effectively completed under the combined action of all transmission parts, so that the whole process is very convenient to control, the ejection holes are selected only according to needs without excessive operation, the whole spraying efficiency can be adjusted by adjusting the air pumping efficiency of the air pump, and the operation is simple and convenient to control;

2. according to the invention, the powder is moved from the storage box at the lower end to the scattering box at the upper end by the conveying of the auger rotating shaft, so that the powder is automatically scattered downwards, the powder can be better impacted by airflow in the falling process, the spraying effect of the powder is better, the powder is continuously conveyed and refluxed, the powder is in movement, the powder is more difficult to accumulate and agglomerate, and the powder is kept in a good powder state in the spraying process;

3. according to the invention, by arranging the rotating plate, after the air outlet hole is blocked by the plug block, the air flow in the energy storage box is intermittently sprayed out, the spraying speed is greatly increased, the spraying coverage is wider, the spraying effect is better, and the powder falling in the interval returns to the material storage box from the return pipe, so that the no-cause waste of the powder is effectively avoided;

4. according to the powder storage box, the connecting shaft drives the shifting sheet to rotate, so that the reflowed powder is beaten and diffused, the powder is prevented from being accumulated after falling down, and meanwhile, the powder stored in the storage box is stirred and refined by the rotation of the stirring plate, so that the phenomenon of accumulation and caking cannot occur in the storage process of the powder, and the conveying process of the powder can be smoothly carried out.

Drawings

Fig. 1 is a schematic structural diagram of a pressurized powder spraying device suitable for powdery volatile pesticides, which is provided by the invention;

FIG. 2 is a side view of a pressurized powder spraying device for powdery volatile pesticide according to the present invention;

FIG. 3 is a schematic structural diagram of a storage box portion of a pressurized powder spraying device for powdery volatile pesticides according to the present invention;

fig. 4 is a schematic structural diagram of a scattering box part in a pressurized powder spraying device for powdery volatile pesticides, which is provided by the invention;

fig. 5 is a side sectional view of a scattering box part in the pressurized powder spraying device for powdery volatile pesticide provided by the invention.

In the figure: 1 running box, 2 energy storage box, 3 material storage box, 4 scattering box, 5 air inlet tank, 6 air pump, 7 air jet hole, 8 air outlet hole, 9 plug block, 10 rotating plate, 11 transport pipe, 12 middle rotating shaft, 13 auger rotating shaft, 14 releasing pipe, 15 return pipe, 16 driving shaft, 17 rotating rod, 18 rotating blade, 19 connecting shaft, 20 driving belt, 21 middle rotating belt, 22 feeding plug, 23 transport guide block, 24 conveying port, 25 plectrum, 26 driving gear, 27 mounting plate, 28 mounting shaft, 29 driven gear, 30 stirring plate, 31 accommodating tank, 32 extension spring, 33 slide block, 34 scattering guide block, 35 belt shaft, 36 stirring shaft, 37 stirring rod, 38 stirring belt, 39 blowing shaft, 40 fan blade and 41 connecting belt.

Detailed Description

The following examples are for illustrative purposes only and are not intended to limit the scope of the present invention.

Examples

Referring to fig. 1-5, a pressurized powder spraying device suitable for powdery volatile pesticide comprises an operation box 1, an energy storage box 2 and a storage box 3 are fixed at the upper end of the operation box 1, a scattering box 4 is fixed on the side wall of the energy storage box 2, the scattering box 4 is positioned right above the storage box 3, an air inlet slot 5 is arranged at one end of the energy storage box 2 far away from the storage box 3 in a penetrating manner, an air pump 6 is fixed on the inner wall of the air inlet slot 5, two air injection holes 7 and two air outlet holes 8 are arranged at one end of the energy storage box 2 close to the storage box 3, the two air injection holes 7 are respectively positioned right above the two air outlet holes 8, the inner walls of the two air injection holes 7 are rotatably connected with a rotating plate 10 through a torsion spring, a plug block 9 is abutted against the inner wall of the two air outlet holes 8, a feeding plug 22 is inserted at the upper end of the storage box 3, a conveying pipe 11 extending to the inside of, the interior bottom of storage case 3 runs through to rotate and is connected with the middle rotating shaft 12, and the upper end of middle rotating shaft 12 is fixed with auger pivot 13, and auger pivot 13 is located inside transport pipe 11, and storage case 3 is inside to be equipped with feeding mechanism, and the incasement that scatters 4 is equipped with the bulk cargo mechanism, and the incasement that operates is equipped with actuating mechanism.

Actuating mechanism includes and rotates drive shaft 16 and connecting axle 19 of being connected with the bottom in the operation case 1, the upper end of drive shaft 16 is fixed with bull stick 17, the bull stick runs through the upper end lateral wall of operation case 1 and extends to in the energy storage case 2, bull stick 17 is located the inside one section circumference lateral wall of energy storage case 2 and is fixed with a plurality of vanes 18, the upper end of connecting axle 19 runs through the upper end lateral wall of operation case 1 and extends to inside the storage case 3, drive shaft 16 passes through driving band 20 with well pivot 12 and is connected, well pivot 12 is connected through well pivot 21 with connecting axle 19.

The pay-off structure is including being fixed in the transportation guide block 23 of bottom in the storage case 3, transportation guide block 23 upper end is the inclined plane, connecting axle 19 runs through transportation guide block 23 and upwards extends, the circumference lateral wall of connecting axle 19 is fixed with a plurality of plectrums 25, the lateral wall of transportation pipe 11 runs through and has seted up a plurality of delivery ports 24, delivery port 24 is located the lower extreme of transportation pipe 11, guarantee that the powder can enter into transportation pipe 11 by delivery port 24 under the direction of transportation guide block 23, guarantee to realize the transport to the powder through the rotation of auger pivot 13.

The upper end of transportation guide block 23 is fixed with mounting panel 27, the lateral wall of mounting panel 27 runs through and is fixed with installation axle 28, the one end that installation axle 28 is close to connecting axle 19 is fixed with driven gear 29, the lateral wall of connecting axle 19 is fixed with driving gear 26 with driven gear 29 engaged with, driven gear 29 and driving gear 26 are the helical gear, the circumference lateral wall that installation axle 28 kept away from connecting axle 19 one end is fixed with a plurality of stirring boards 30, the groove 31 of accomodating has all been seted up to the one end that installation axle 28 was kept away from to every stirring board 30, every interior bottom of accomodating groove 31 all is fixed with extension spring 32, the one end that installation axle 28 was kept away from to every extension spring 32 all is fixed with and corresponds the slider 33 of.

The bulk cargo mechanism comprises a scattering guide block 34 fixed on the inner wall of the scattering box 4, the upper end of the scattering guide block 34 is an inclined plane, the conveying pipe 11 penetrates through the scattering guide block 34, the top of the scattering box 4 is rotatably connected with a belt shaft 35, the bottom of the belt shaft 35 is fixedly connected with the upper end of the auger rotating shaft 13, the inner wall of the scattering box 4 is rotatably connected with a stirring shaft 36, the circumferential side wall of the stirring shaft 36 is fixedly provided with a plurality of stirring rods 37, and the belt shaft 35 is connected with the stirring shaft 36 through a stirring belt 38; the interior top of case 4 that scatters rotates and is connected with a plurality of moving shafts 39 that blow, and every bottom that blows moving shaft 39 all is fixed with flabellum 40, and a plurality of moving shafts 39 that blow all are connected with tape spool 35 through connecting band 41, blow through flabellum 40 for the powder diffusion refines, effectively avoids piling up and causes the caking, makes the powder drier simultaneously, more does benefit to and scatters.

The lower extreme lateral wall of case 4 that scatters runs through the release pipe 14 that is fixed with two symmetries and sets up, the upper end lateral wall of storage case 3 runs through the back flow 15 that is fixed with two symmetries and sets up, two release pipes 14 and two back flow 15 one-to-ones and lie in and correspond back flow 15 directly over, two release pipes 14 and two fumaroles 7 and two ventholes 8 one-to-ones, fumaroles 7 and ventholes 8 all are located the intermediate position of release pipe 14 and back flow 15, can be driven by spun air current when making the powder whereabouts, and then accomplish and spray, the whereabouts through powder self make the powder obtain the diffusion, further strike through the air current, make the powder diffusion to required position, make the powder obtain further refining, thereby avoided spraying inhomogeneous condition because of the powder caking formation and appearing.

In the invention, when the pesticide is required to be sprayed, firstly, the charging plug 22 is opened to pour a proper amount of powdery pesticide into the storage box 3, then, the charging plug 22 is plugged to prevent the powder from escaping, then, the air pump 6 is started to pump air into the energy storage box 2, and during conventional spraying, the plug block 9 in the air outlet 8 can be taken out to keep the air outlet 8 smooth;

the airflow delivered by the air pump 6 flows out of the air outlet 8, and the aperture of the air outlet 8 is limited, so that the flow rate of the flowing airflow is high, powder can be sprayed, the airflow pumped by the air pump 6 passes through the rotating blade 18, the rotating blade 18 is impacted by the airflow to drive the rotating rod 17 to rotate, the rotating rod 17 drives the driving shaft 16 to rotate, the driving shaft 16 drives the intermediate rotating shaft 12 to rotate through the driving belt 20, and similarly, the intermediate rotating shaft 12 drives the connecting shaft 19 to rotate through the intermediate rotating belt 21;

the rotation of the middle rotating shaft 12 drives the auger rotating shaft 13 to rotate, so that the powder inside the storage box 3 enters the conveying pipe 11 from the conveying port 24, is conveyed upwards under the driving of the auger rotating shaft 13 and further gradually moves into the scattering box 4, the powder entering the scattering box 4 slides into the release pipe 14 along the scattering guide block 34, the powder entering the release pipe 14 falls downwards and leaves the release pipe 14, and is scattered under the driving of the air flow sprayed from the air outlet 8, and uniform and effective spraying coverage is realized;

when the spraying range needs to be enlarged and the one-time spraying area is increased, the air outlet 8 can be blocked by the plug block 9, in this state, the air flow cannot flow out of the air outlet 8, the air pump 6 still pumps air into the energy storage box 2 continuously, so that the air pressure in the energy storage box 2 rises, along with the accumulation of the air, the air pressure in the energy storage box 2 rises, the rotating plate 10 rotates under the action of the air pressure to overcome the elasticity of the connecting torsion spring, and the air outlet 7 is opened, in this state, the air flow is sprayed out at a faster flow rate, so that the powder can be sprayed farther under the drive of the air flow, and further a larger range is covered in the flowing process of the air flow, and the purposes of enlarging the covering range and refining the covering effect are achieved, because the rotating plate 10 needs stronger air pressure due to the rotation of the rotating plate 10, after one-time rotation, because the air pressure in the energy storage box 2 is reduced, and then presenting intermittent spraying, when the rotating plate 10 seals the air injection hole 7, the powder released by the release pipe 14 returns to the storage tank 3 through the return pipe 15, so that the powder is returned, and the powder is prevented from being wasted due to no reason;

in the working process, the connecting shaft 19 drives the shifting plate 25 and the driving gear 26 to rotate, the powder returning to the inside of the storage box 3 is beaten, refined and uniformly distributed through the rotation of the shifting plate 25, the accumulation of backflow powder is effectively avoided, the occurrence of caking phenomenon is avoided, the rotation of the driving gear 26 drives the driven gear 29 engaged with the driving gear to rotate, the driven gear 29 drives the mounting shaft 28 to rotate after rotating, and further drives the stirring plates 30 on the mounting shaft 28 to rotate, along with the rotation of the stirring plates 30, under the action of centrifugal force, the slide block 33 moves the stretching spring 32 to the outside of the accommodating groove 31, so that the stirring range of the stirring plates 30 is enlarged, the stirring effect is better, the powder is fully crushed, the caking is avoided, the uneven spraying is not uniform, when the pumping speed of the air pump 6 is improved, the overall spraying efficiency is improved, the powder needs to be better stirred under the state to meet the requirement of quick spraying, along with the increase of the pumping speed of the air pump 6, the rotating speed of the connecting shaft 19 is increased, the stirring speed is increased, and meanwhile, the centrifugal force applied to the sliding block 33 is larger, so that the stirring range is synchronously increased, the stirring effect is synchronously increased, and the spraying requirement is ensured to be met;

when the powder gets into the case 4 that scatters, the tape spool 35 will rotate and drive (mixing) shaft 36 and blow axle 39 rotation through stirring area 38 and connecting band 41, the rotation of (mixing) shaft 36 will drive puddler 37 and rotate, stirring effect through puddler 37, make the powder obtain effectual refining again before the release, avoid the caking that the transportation extrusion caused, it is even to guarantee to spray, the rotation that blows axle 39 will drive the rotation of flabellum 40, wind-force through flabellum 40 rotation production makes the powder can spread, when having avoided the caking, make the powder can be better to the diffusion of (mixing) shaft 36 one end, make the faster outflow of powder.

The above description is only for the purpose of illustrating the preferred embodiments of the present invention and is not to be construed as limiting the invention, and any modifications, equivalents, improvements and the like that fall within the spirit and principle of the present invention are intended to be included therein.

Claims

1. The supercharged powder spraying device suitable for powdery volatile pesticides comprises an operation box (1) and is characterized in that an energy storage box (2) and a storage box (3) are fixed at the upper end of the operation box (1), a scattering box (4) is fixed on the side wall of the energy storage box (2), the scattering box (4) is located right above the storage box (3), an air inlet groove (5) is formed in one end, far away from the storage box (3), of the energy storage box (2) in a penetrating mode, an air pump (6) is fixed on the inner wall of the air inlet groove (5), two air injection holes (7) and two air outlet holes (8) are formed in one end, close to the storage box (3), of the energy storage box (2), the two air injection holes (7) are respectively located right above the two air outlet holes (8), the inner walls of the two air injection holes (7) are both rotatably connected with a rotary plate (10) through torsion springs, and plug blocks (9) abut against the inner walls of the two air outlet holes (8), the utility model discloses a storage case, including storage case (3), the upper end of storage case (3) is inserted and is equipped with reinforced stopper (22), the lateral wall of storage case (3) is run through to be inserted and is equipped with and extends to the transport pipe (11) of scattering case (4) inside, the interior bottom of storage case (3) runs through to rotate and is connected with well pivot (12), the upper end of well pivot (12) is fixed with auger pivot (13), auger pivot (13) are located inside transport pipe (11), the inside feeding mechanism that is equipped with of storage case (3), the inside bulk cargo mechanism that is equipped with of scattering case (4), the inside actuating mechanism that is equipped with of operation case (1).

2. The pressurized powder spraying device for the powdery volatile pesticide is characterized in that the driving mechanism comprises a driving shaft (16) and a connecting shaft (19) which are rotatably connected with the bottom in the operation box (1), a rotating rod (17) is fixed at the upper end of the driving shaft (16), the rotating rod penetrates through the upper end side wall of the operation box (1) and extends into the energy storage box (2), a plurality of rotating vanes (18) are fixed at the circumferential side wall of one section of the rotating rod (17) in the energy storage box (2), the upper end of the connecting shaft (19) penetrates through the upper end side wall of the operation box (1) and extends into the material storage box (3), the driving shaft (16) is connected with the intermediate rotating shaft (12) through a driving belt (20), and the intermediate rotating shaft (12) is connected with the connecting shaft (19) through an intermediate rotating belt (21).

3. The pressurized powder spraying device for the powdery volatile pesticide as claimed in claim 1, wherein the feeding structure comprises a transportation guide block (23) fixed at the bottom inside the storage box (3), the upper end of the transportation guide block (23) is an inclined surface, the connecting shaft (19) penetrates through the transportation guide block (23) and extends upwards, a plurality of stirring pieces (25) are fixed on the circumferential side wall of the connecting shaft (19), a plurality of conveying openings (24) are formed in the side wall of the conveying pipe (11) in a penetrating manner, and the conveying openings (24) are located at the lower end of the conveying pipe (11).

4. The pressurized powder spraying device for powdery volatile pesticides as claimed in claim 3, wherein a mounting plate (27) is fixed at the upper end of the transportation guide block (23), a mounting shaft (28) penetrates through the side wall of the mounting plate (27), a driven gear (29) is fixed at one end of the mounting shaft (28) close to the connecting shaft (19), a driving gear (26) meshed with the driven gear (29) is fixed at the side wall of the connecting shaft (19), the driven gear (29) and the driving gear (26) are both helical gears, a plurality of stirring plates (30) are fixed on the circumferential side wall of the mounting shaft (28) far away from one end of the connecting shaft (19), a containing groove (31) is formed at one end of each stirring plate (30) far away from the mounting shaft (28), and an extension spring (32) is fixed at the inner bottom of each containing groove (31), and a sliding block (33) which is in sliding connection with the inner wall of the corresponding accommodating groove (31) is fixed at one end of each extension spring (32) far away from the mounting shaft (28).

5. The pressurized powder spraying device for the powdery volatile pesticide is characterized in that the bulk material mechanism comprises a scattering guide block (34) fixed on the inner wall of a scattering box (4), the upper end of the scattering guide block (34) is an inclined surface, the conveying pipe (11) penetrates through the scattering guide block (34), the top of the scattering box (4) is rotatably connected with a belt shaft (35), the bottom of the belt shaft (35) is fixedly connected with the upper end of a packing auger rotating shaft (13), the inner wall of the scattering box (4) is rotatably connected with a stirring shaft (36), the circumferential side wall of the stirring shaft (36) is fixedly provided with a plurality of stirring rods (37), and the belt shaft (35) is connected with the stirring shaft (36) through a stirring belt (38).

6. The pressurized powder spraying device for the powdery volatile pesticide as claimed in claim 5, characterized in that a plurality of blowing shafts (39) are rotatably connected to the top of the scattering box (4), a fan blade (40) is fixed to the bottom of each blowing shaft (39), and the plurality of blowing shafts (39) are connected with the belt shaft (35) through a connecting belt (41).

7. The pressurized powder spraying device for powdery volatile pesticides as claimed in claim 6, wherein two symmetrically arranged release pipes (14) penetrate through and are fixed to the side wall of the lower end of the scattering box (4), two symmetrically arranged return pipes (15) penetrate through and are fixed to the side wall of the upper end of the storage box (3), the two release pipes (14) correspond to the two return pipes (15) one by one and are located right above the corresponding return pipes (15), and the two release pipes (14) correspond to the two air injection holes (7) and the two air outlet holes (8) one by one.