Agricultural hand-held pollination gun

Abstract

The application belongs to the technical field of agricultural equipment, and particularly relates to a hand-held pollination gun for agriculture, which comprises a gun body and a pollen bottle. The gun body is provided with a conical cylinder, and the conical cylinder is provided with a pollination tube. The lower side of the pollen bottle is processed with a conical bottle mouth. A quantitative pollination mechanism is arranged between the gun body and the pollen bottle. The quantitative pollination mechanism comprises a mounting table, a cylindrical rotating core, a powder feeding channel and a powder outlet pipeline. The cylindrical rotating core is rotatably installed on the mounting table. The cylindrical rotating core is provided with a powder storage channel. The powder feeding channel is fixed on the top of the mounting table. The top of the mounting table is provided with a through hole. The powder outlet pipeline is fixedly installed on the mounting table. The lower side of the powder outlet pipeline is connected with the pollination tube. A gas nozzle is fixedly arranged at the front end of the gun body. The gas nozzle is abutted with the pollination tube and is sealed by a sealing ring. A gas blowing mechanism is arranged in the gun body. An adjusting mechanism is further arranged between the gun body and the cylindrical rotating core. The application can realize quantitative pollination when performing pollination operation.

Description

Technical Field

[0001] This invention belongs to the field of agricultural equipment technology, specifically relating to a handheld pollination gun for agriculture. Background Technology

[0002] In crop cultivation, especially in orchards, natural pollination mostly relies on natural wind and animals such as birds as pollinators. However, natural pollination is inefficient and has poor pollination results, which is not conducive to large-scale planting. Therefore, in orchard cultivation, artificial pollination is usually used. Existing artificial pollination equipment mainly includes two types: electric pollination guns and manual pollination guns. The former uses a built-in fan to blow pollen onto the flowers of crops, while the latter uses a manual blower to blow pollen onto the flowers of crops.

[0003] However, existing pollination guns rarely have the function of quantitative pollination. Due to the different operating methods of operators, the amount of pollination on flowers varies greatly. Therefore, based on the manual pollination gun, we propose an agricultural handheld pollination gun that can perform quantitative pollination. Summary of the Invention

[0004] The purpose of this invention is to provide a handheld pollination gun for agriculture to solve the problems existing in the prior art.

[0005] To achieve the above-mentioned technical objectives, the technical solution adopted by the present invention is as follows:

[0006] An agricultural handheld pollination gun includes a gun body and a pollen bottle. A conical tube is fixedly installed at the front end of the gun body, and a pollination tube is fixedly installed at the front end of the conical tube. The pollen bottle is inverted and has a conical mouth machined on its lower side. A quantitative pollination mechanism is provided between the gun body and the pollen bottle.

[0007] The quantitative pollination mechanism includes an installation platform, a cylindrical rotating core, a powder inlet channel, and a powder outlet pipe. The installation platform is located above the front side of the gun body and is fixedly connected to the gun body via a connecting frame. The cylindrical rotating core is horizontally arranged and rotatably installed inside the installation platform. The cylindrical rotating core has a vertically penetrating powder storage channel. The powder inlet channel is fixed to the top of the installation platform. The top of the installation platform has a through hole that matches the powder storage channel and the powder inlet channel. The powder outlet pipe is inclinedly installed and fixed to the lower front side of the installation platform. The lower side of the powder outlet pipe extends forward to connect with the pollination pipe.

[0008] An air nozzle is fixedly installed at the front end of the gun body. The air nozzle abuts against the pollination tube and is sealed by a sealing ring. An air blowing mechanism is installed inside the gun body. An adjustment mechanism that is linked to the air blowing mechanism is also installed between the gun body and the cylindrical rotating core.

[0009] The gun body has an air chamber and a cavity on its front and rear sides, respectively, which are laterally connected. The air-blowing mechanism includes an air pipe, a first annular platform, and a second annular platform. One end of the air pipe is fixedly connected to the air nozzle, and the other end of the air pipe extends horizontally to the rear side of the air chamber. The first annular platform is slidably connected to the air chamber and slidably sleeved on the outer wall of the air pipe. A first return spring is provided between the first annular platform and the rear end of the air chamber. A stop block is provided on the upper side of the front end of the air chamber. A strip-shaped through groove corresponding to the stop block is machined on the upper side of the second annular platform. The second annular platform is slidably sleeved on the outer wall of the air pipe. A strip-shaped guide rail is provided at the bottom of the cavity. A forward-extending strip-shaped horizontal platform is fixedly provided at the bottom of the second annular platform. A slider matching the strip-shaped guide rail is fixedly connected to the front end of the strip-shaped horizontal platform. A second return spring is provided between the slider and the strip-shaped guide rail. A movable grip is fixedly connected to the bottom of the slider. A fixed grip is fixedly connected to the bottom of the rear end of the gun body.

[0010] Under the elastic force of the second return spring, the slider causes the movable grip to move away from the fixed grip, and there is a gap between the second ring platform and the first ring platform.

[0011] A first one-way valve is installed at the front end of the trachea, and a second one-way valve is installed at the rear end of the air chamber.

[0012] The cylindrical rotating core has two ends that rotate through both sides of the mounting platform. The adjustment mechanism includes a transmission frame, a first spur rack, and a first gear. The transmission frame is fixedly connected to the movable handle. The first gear is fixedly connected to one end of the cylindrical rotating core. The first spur rack is machined on the front side of the transmission frame. The first spur rack is located above the first gear and matches the first gear. The length of the first spur rack is equal to the maximum distance between the second ring platform and the first ring platform.

[0013] Two positioning spherical grooves are opened on the other side of the cylindrical rotating core. A spring rod is installed on the mounting platform. The end of the spring rod is machined into a smooth curved surface that matches the positioning spherical groove.

[0014] The pollen bottle has a detachable feeding cap at the top.

[0015] The powder feeding channel includes an upper connecting part, a rotating part, and a lower connecting part. The upper connecting part is detachably connected to the conical bottle mouth. The lower connecting part is fixedly connected to and communicates with the top of the mounting platform. The rotating part is rotatably disposed between the upper connecting part and the lower connecting part. A stirring rod extending into the interior of the pollen bottle and the lower connecting part is fixedly mounted on the inner side of the rotating part. Several connecting rods are connected between the upper connecting part and the lower connecting part. A mounting base is fixedly disposed on the top of the gun body. A rotating shaft is rotatably connected to the mounting base. A first transmission wheel is fixedly connected to the outer wall of the rotating part. A second transmission wheel corresponding to the first transmission wheel is fixedly connected to the rotating shaft. The first transmission wheel and the second transmission wheel are connected by a belt drive. The rotating shaft is also provided with a drive mechanism.

[0016] The drive mechanism includes a second spur rack and a second gear. The second spur rack is machined on the rear side of the transmission frame, and the second gear is fixedly connected to the rotating shaft. The second spur rack and the second gear are matched.

[0017] This invention features a cylindrical rotating core. When the cylindrical rotating core is in a vertical position, the lower end of the pollen storage channel is completely offset from the pollen outlet pipe. At this time, the upper end of the pollen storage channel is aligned with the through hole at the top of the mounting platform, allowing pollen from the pollen bottle to sequentially pass through the conical bottle mouth, the pollen inlet channel, and the through hole at the top of the mounting platform into the pollen storage channel, thus filling the pollen storage channel of the cylindrical rotating core. When the cylindrical rotating core rotates from a vertical position, the upper end of the pollen storage channel is completely offset from the through hole at the top of the mounting platform, and the lower end of the pollen storage channel is aligned with the pollen outlet pipe. The pollen in the pollen storage channel falls into the pollination tube through the inclined pollen outlet pipe. Since the amount of pollen in the pollen storage channel is fixed, the amount of pollen entering the pollination tube is also fixed, thus achieving quantitative pollination. Attached Figure Description

[0018] The present invention can be further illustrated by the non-limiting embodiments given in the accompanying drawings.

[0019] Figure 1 This is a structural schematic diagram of Embodiment 1 of the present invention. Figure 1 ;

[0020] Figure 2 This is a structural schematic diagram of Embodiment 1 of the present invention. Figure 2 ;

[0021] Figure 3 for Figure 2 Enlarged schematic diagram of the structure at point A;

[0022] Figure 4 This is a partial cross-sectional structural diagram of the initial state of Embodiment 1 of the present invention;

[0023] Figure 5 for Figure 4 Enlarged schematic diagram of the structure at point B;

[0024] Figure 6 This is a partial cross-sectional structural diagram of Embodiment 1 of the present invention at stage ②;

[0025] Figure 7 for Figure 6 Enlarged schematic diagram of the structure at point C;

[0026] Figure 8 This is a partial cross-sectional view of Embodiment 2 of the present invention. Figure 1 ;

[0027] Figure 9 for Figure 8 Enlarged schematic diagram of the structure at point D;

[0028] Figure 10 This is a partial cross-sectional view of Embodiment 2 of the present invention. Figure 2 ;

[0029] The symbols for the main components are explained below:

[0030] Gun body 100, conical cylinder 101, pollination tube 102, air nozzle 103, sealing ring 104, fixed grip 105, pollen bottle 110, conical bottle mouth 111, feeding cover 112, mounting platform 120, cylindrical rotating core 121, pollen storage channel 1211, pollen inlet channel 122, pollen outlet pipe 123, connecting frame 124, spring rod 125, air chamber 130, stop block 1301, second one-way valve 130 2. Cavity 131, strip guide rail 1311, air pipe 132, first one-way valve 1321, first ring platform 133, first return spring 1331, second ring platform 134, strip through groove 1341, strip cross platform 1342, slider 1343, second return spring 1344, movable handle 1345, transmission frame 140, first straight rack 141, first gear 142, positioning spherical groove 143;

[0031] Upper connecting part 200, rotating part 201, stirring rod 2011, first transmission wheel 2012, lower connecting part 202, connecting rod 203, mounting base 204, rotating shaft 2041, second transmission wheel 2042, second gear 2043, second spur rack 205. Detailed Implementation

[0032] To enable those skilled in the art to better understand the present invention, the technical solution of the present invention will be further described below in conjunction with the accompanying drawings and embodiments.

[0033] Example 1, as Figures 1 to 7The handheld pollination gun shown includes a gun body 100 and a pollen bottle 110. A conical tube 101 is fixedly installed at the front end of the gun body 100, and a pollination tube 102 is fixedly installed at the front end of the conical tube 101. The pollen bottle 110 is inverted and has a conical bottle mouth 111 machined on its lower side. A quantitative pollination mechanism is provided between the gun body 100 and the pollen bottle 110.

[0034] The quantitative pollination mechanism includes an installation platform 120, a cylindrical rotating core 121, a powder inlet channel 122, and a powder outlet pipe 123. The installation platform 120 is located above the front side of the gun body 100 and is fixedly connected to the gun body 100 through a connecting bracket 124. The cylindrical rotating core 121 is horizontally arranged and rotates inside the installation platform 120. The cylindrical rotating core 121 has a vertically penetrating powder storage channel 1211. The powder inlet channel 122 is fixed to the top of the installation platform 120. The top of the installation platform 120 has a through hole that matches the powder storage channel 1211 and the powder inlet channel 122. The powder outlet pipe 123 is installed and fixed at an angle to the lower front side of the installation platform 120. The lower side of the powder outlet pipe 123 extends forward to connect with the pollination pipe 102.

[0035] An air nozzle 103 is fixedly installed at the front end of the gun body 100. The air nozzle 103 abuts against the pollination tube 102 and is sealed by a sealing ring 104. An air blowing mechanism is installed inside the gun body 100. An adjustment mechanism that is linked to the air blowing mechanism is also installed between the gun body 100 and the cylindrical rotating core 121.

[0036] like Figure 4 As shown, when the cylindrical rotating core 121 is in a vertical state, the lower end of the pollen storage channel 1211 is completely offset from the pollen outlet pipe 123. At this time, the upper end of the pollen storage channel 1211 will be aligned with the through hole at the top of the mounting platform 120, so that the pollen in the pollen bottle 110 can enter the pollen storage channel 1211 through the conical bottle mouth 111, the pollen inlet channel 122, and the through hole at the top of the mounting platform 120 in sequence, thereby filling the pollen storage channel 1211 of the cylindrical rotating core 121 with pollen.

[0037] like Figure 6 As shown, when the cylindrical rotating core 121 rotates from the vertical position, the upper end of the pollen storage channel 1211 is completely misaligned with the through hole at the top of the mounting platform 120. At this time, the lower end of the pollen storage channel 1211 will be aligned with the pollen outlet pipe 123, so that the pollen in the pollen storage channel 1211 falls into the pollination tube 102 through the inclined pollen outlet pipe 123. Since the amount of pollen in the pollen storage channel 1211 is fixed, the amount of pollen entering the pollination tube 102 is also fixed. Finally, the air is blown out into the pollination tube 102 through the air nozzle 103 by the air blowing mechanism in the gun body 100. Since the air nozzle 103 and the pollination tube 102 are sealed by the sealing ring 104, the pollen in the pollination tube 102 will be blown out for quantitative pollination.

[0038] In this embodiment, the air-blowing mechanism generates airflow, causing the air nozzle 103 to blow pollen out of the pollination tube 102. The adjusting mechanism is used to adjust the rotation of the cylindrical rotating core 121. Specifically, the structures of the air-blowing mechanism and the adjusting mechanism will be further explained, along with the linkage between them, as detailed below. Figures 1 to 7 As shown, the gun body 100 has an air chamber 130 and a cavity 131 on its front and rear sides, respectively. The air chamber 130 and the cavity 131 are laterally connected. The air-blowing mechanism includes an air pipe 132, a first annular platform 133, and a second annular platform 134. One end of the air pipe 132 is fixedly connected to the air nozzle 103, and the other end of the air pipe 132 extends horizontally to the rear side of the air chamber 131. The first annular platform 133 is slidably connected to the air chamber 130 and slidably sleeved on the outer wall of the air pipe 132. A first return spring 1331 is provided between the first annular platform 133 and the rear end of the air chamber 130. A stop block 1301 is provided on the upper side of the front end of the air chamber 130. The second annular platform 134... The upper side of the 34 is machined with a strip-shaped through groove 1341 corresponding to the stop block 1301. The second ring platform 134 is slidably sleeved on the outer wall of the air pipe 132. A strip-shaped guide rail 1311 is opened at the bottom of the cavity 131. A forward-extending strip-shaped horizontal platform 1342 is fixedly installed at the bottom of the second ring platform 134. A slider 1343 matching the strip-shaped guide rail 1311 is fixedly connected to the front end of the strip-shaped horizontal platform 1342. A second return spring 1344 is provided between the slider 1343 and the strip-shaped guide rail 1311. A movable grip 1345 is fixedly connected to the bottom of the slider 1343. A fixed grip 105 is fixedly connected to the bottom of the rear end of the gun body 100.

[0039] Under the elastic force of the second return spring 1344, the slider 1343 causes the movable handle 1345 to move away from the fixed handle 105, and there is a gap between the second ring platform 134 and the first ring platform 133.

[0040] A first one-way valve 1321 is installed at the front end of the trachea 132, and a second one-way valve 1302 is installed at the rear end of the air chamber 130.

[0041] The cylindrical rotating core 121 rotates through both ends of the mounting platform 120. The adjustment mechanism includes a transmission frame 140, a first straight rack 141, and a first gear 142. The transmission frame 140 is fixedly connected to the movable handle 1345. The first gear 142 is fixedly connected to one end of the cylindrical rotating core 121. The first straight rack 141 is machined on the front side of the transmission frame 140. The first straight rack 141 is located above the first gear 142 and matches the first gear 142. The length of the first straight rack 141 is equal to the maximum distance between the second ring platform 134 and the first ring platform 133.

[0042] In the initial state of the device, such as Figures 1 to 5 As shown, the following states are included:

[0043] State ①: The first return spring 1331 elastically rebounds, causing the first ring platform 133 to move forward to the front of the air chamber 130 and form a negative pressure. The first ring platform 133 is limited by the stop block 1301 of the air chamber 130, and air enters the air chamber 130 through the second one-way valve 1302 at the rear end of the air chamber 130.

[0044] State ②: The second return spring 1344 elastically rebounds, causing the slider 1343 to move forward to the front end of the strip guide rail 1311 at the bottom of the cavity 131, causing the strip cross platform 1342 to pull the second ring platform 134 away from the first ring platform 133. At this time, the second ring platform 134 and the first ring platform 133 are at the maximum distance.

[0045] State ③: The movement of slider 1343 causes the movable handle 1345 and transmission frame 140 to move forward. When the first straight rack 141 moves forward, it meshes with the first gear 142 at one end of the cylindrical rotating core 121 for transmission. When the first straight rack 141 moves forward to the point where its rear end just disengages from the cylindrical rotating core 121, the material storage channel 1211 inside the cylindrical rotating core 121 is in a vertical state.

[0046] When using the device, users only need to grip it firmly to bring the movable handle 1345 close to the fixed handle 105 to complete quantitative pollination. The specific principle is as follows: when the movable handle 1345 moves backward and approaches the fixed handle 105, it includes the following three stages:

[0047] Stage ①: In the initial state, the material storage channel 1211 inside the cylindrical rotating core 121 is in a vertical position, such as... Figure 4 As shown, the pollen in the pollen bottle 110 enters the pollen storage channel 1211 through the conical bottle mouth 111, the pollen inlet channel 122, and the through hole at the top of the mounting platform 120, thereby filling the pollen storage channel 1211 of the cylindrical rotating core 121 with pollen.

[0048] Phase ②: The movable grip 1345 moves backward, and the slider 1343 slides backward on the strip guide rail 1311, thereby compressing the second return spring 1344. Since the second ring platform 134 has a strip through slot 1341 corresponding to the stop block 1301, the slider 1343 can drive the strip cross platform 1342 to move, pushing the second ring platform 134 close to the first ring platform 133. At the same time, the movable grip 1345 will also drive the transmission frame 140 to move backward, and the first spur rack 141 will also move backward. The first gear 142 at one end of the cylindrical rotating core 121 engages with the first gear 142 for transmission. Since the length of the first straight rack 141 is equal to the maximum distance between the second ring platform 134 and the first ring platform 133, when the second ring platform 134 and the first ring platform 133 are close together, the first straight rack 141 disengages from the first gear 142 at one end of the cylindrical rotating core 121, and the cylindrical rotating core 121 rotates, causing the lower end of the powder storage channel 1211 of the cylindrical rotating core 121 to align with the powder outlet pipe 123. At this time, if... Figure 6 and Figure 7 As shown, the pollen in the pollen storage channel 1211 will fall into the pollination tube 102. At the same time, since the upper end of the pollen storage channel 1211 is completely offset from the through hole at the top of the mounting platform 120, the pollen storage channel 1211 is in a closed state at the top.

[0049] Phase 3: The active handle 1345 continues to move backward, the slider 1343 continues to slide backward on the bar guide rail 1311, and continues to compress the second return spring 1344. At the same time, the second ring platform 134 will also push the first ring platform 133, so that the first ring platform 133 moves to the rear of the air chamber 130. Due to the second one-way valve 1302 set in the air chamber 130, the air in the air chamber 130 is blown out through the air pipe 132 and blown into the air nozzle 103 through the first one-way valve 1321 of the air pipe 132. The air is blown into the pollination tube 102 through the air nozzle 103, and the pollen in the pollination tube 102 will be blown out for quantitative pollination.

[0050] When people release the pressure, the air-blowing mechanism and the adjustment mechanism return to their initial state under the rebound of the first return spring 1331 and the second return spring 1344. By repeatedly gripping and releasing the pollination gun, quantitative pollination can be continuously carried out.

[0051] Based on the above, further improvements are made to prevent the cylindrical rotating core 121 from rotating on its own, such as... Figure 3 As shown, two positioning spherical grooves 143 are opened on the other side of the cylindrical rotating core 121. A spring rod 125 is installed on the mounting table 120. The end of the spring rod 125 is machined into a smooth curved surface that matches the positioning spherical groove 143.

[0052] In the initial state, when the storage channel 1211 of the cylindrical rotating core 121 is in a vertical position, the end of the spring rod 125 is inserted into one of the positioning spherical grooves 143 at the other end of the cylindrical rotating core 121, thereby preventing the cylindrical rotating core 121 from rotating on its own. When the adjusting mechanism drives the cylindrical rotating core 121 to rotate, under the action of external force, due to the elasticity of the spring rod 125, the end of the spring rod 125 slides out along the positioning spherical groove 143 until the lower end of the storage channel 1211 of the cylindrical rotating core 121 is aligned with the powder outlet pipe 123. At this point, the other positioning spherical groove 143 will correspond to the end of the spring rod 125. The spring rod 125 can be automatically positioned by being inserted into the positioning spherical groove 143 through its elastic rebound, which can effectively prevent the cylindrical rotating core 121 from rotating on its own.

[0053] As a further explanation of the pollen bottle 110 in this embodiment, such as Figure 2 As shown, the top of the pollen bottle 110 is detachably connected to the feeding cap 112, which allows people to conveniently add pollen into the pollen bottle 110 by opening the feeding cap 112.

[0054] Example 2 is an improvement upon Example 1, made to prevent pollen from being blocked during the pollen extraction process due to the small size of the conical flask opening 111 and the pollen inlet channel 123. Figures 8 to 10 As shown, the pollen inlet channel 122 includes an upper connecting part 200, a rotating part 201, and a lower connecting part 202. The upper connecting part 200 is detachably connected to the conical bottle mouth 111, specifically by a threaded connection. The lower connecting part 202 is fixedly connected to and communicates with the top of the mounting platform 120. The rotating part 201 is rotatably disposed between the upper connecting part 200 and the lower connecting part 202. A stirring rod 201 extending into the interior of the pollen bottle 110 and the lower connecting part 202 is mounted and fixed on the inner side of the rotating part 201. 1. Several connecting rods 203 are connected between the upper connecting part 200 and the lower connecting part 202. A mounting base 204 is fixedly provided on the top of the gun body 100. A rotating shaft 2041 is rotatably connected to the mounting base 204. A first transmission wheel 2012 is fixedly connected to the outer wall of the rotating part 201. A second transmission wheel 2042 corresponding to the first transmission wheel 2012 is fixedly connected to the rotating shaft 2041. The first transmission wheel 2012 and the second transmission wheel 2042 are connected by belt drive. The rotating shaft 2041 is also provided with a drive mechanism.

[0055] The drive mechanism includes a second spur rack 205 and a second gear 2043. The second spur rack 205 is machined on the rear side of the transmission frame 140, and the second gear 2043 is fixedly connected to the rotating shaft 2041. The second spur rack 205 and the second gear 2043 are matched.

[0056] like Figure 9As shown, multiple connecting rods 203 make the upper connecting part 200 and the lower connecting part 202 form a whole, so that the rotating part 201 can be stably installed between the upper connecting part 200 and the lower connecting part 202.

[0057] During the reciprocating gripping and releasing of the pollination gun, the transmission frame 140 moves back and forth, causing the second spur rack 205 to move back and forth relative to the second gear 2043. This, in turn, drives the second gear 2043 to rotate repeatedly. As the second gear 2043 rotates back and forth, the shaft 2041 of the mounting base 204 rotates back and forth. Simultaneously, the second transmission wheel 2042 on the shaft 2041 is belt-driven with the first transmission wheel 2012 on the outer wall of the rotating part 201, which in turn drives the shaft 2041 to rotate the rotating part 201. Since the rotating part 201 is equipped with a stirring rod 2011, the stirring rod 2011 rotates, stirring the pollen inside the pollen bottle 110 and the lower connecting part 202. This effectively avoids the problem of pollen not being able to be discharged normally due to blockage caused by the small size of the conical bottle mouth 111 and the pollen inlet channel 123.

[0058] The above embodiments are merely illustrative of the principles and effects of the present invention and are not intended to limit the invention. Any person skilled in the art can modify or alter the above embodiments without departing from the spirit and scope of the present invention. Therefore, all equivalent modifications or alterations made by those skilled in the art without departing from the spirit and technical concept disclosed in the present invention should still be covered by the claims of the present invention.

Claims

1. An agricultural handheld pollination gun, comprising a gun body and a pollen bottle, wherein a conical cylinder is fixedly disposed at the front end of the gun body, and a pollination tube is fixedly disposed at the front end of the conical cylinder, characterized in that: The pollen bottle is inverted and has a conical mouth machined on its lower side; a quantitative pollination mechanism is provided between the gun body and the pollen bottle. The quantitative pollination mechanism includes an installation platform, a cylindrical rotating core, a powder inlet channel, and a powder outlet pipe. The installation platform is located above the front side of the gun body and is fixedly connected to the gun body via a connecting frame. The cylindrical rotating core is horizontally arranged and rotatably installed inside the installation platform. The cylindrical rotating core has a vertically penetrating powder storage channel. The powder inlet channel is fixed to the top of the installation platform. The top of the installation platform has a through hole that matches the powder storage channel and the powder inlet channel. The powder outlet pipe is inclinedly installed and fixed to the lower front side of the installation platform. The lower side of the powder outlet pipe extends forward to connect with the pollination pipe. An air nozzle is fixedly provided at the front end of the gun body. The air nozzle abuts against the pollination tube and is sealed by a sealing ring. An air blowing mechanism is provided inside the gun body. An adjustment mechanism that is linked to the air blowing mechanism is also provided between the gun body and the cylindrical rotating core. The gun body has an air chamber and a cavity on its front and rear sides, respectively, which are laterally connected. The air-blowing mechanism includes an air pipe, a first annular platform, and a second annular platform. One end of the air pipe is fixedly connected to the air nozzle, and the other end of the air pipe extends horizontally to the rear side of the air chamber. The first annular platform is slidably connected to the air chamber and slidably sleeved on the outer wall of the air pipe. A first return spring is provided between the first annular platform and the rear end of the air chamber. A stop block is provided on the upper side of the front end of the air chamber. A strip-shaped through groove corresponding to the stop block is machined on the upper side of the second annular platform. The second annular platform is slidably sleeved on the outer wall of the air pipe. A strip-shaped guide rail is provided at the bottom of the cavity. A forward-extending strip-shaped horizontal platform is fixedly provided at the bottom of the second annular platform. A slider matching the strip-shaped guide rail is fixedly connected to the front end of the strip-shaped horizontal platform. A second return spring is provided between the slider and the strip-shaped guide rail. A movable grip is fixedly connected to the bottom of the slider. A fixed grip is fixedly connected to the bottom of the rear end of the gun body. Under the elastic force of the second return spring, the slider causes the movable grip to move away from the fixed grip, and there is a gap between the second ring platform and the first ring platform; A first one-way valve is installed at the front end of the air tube, and a second one-way valve is installed at the rear end of the air chamber. The two ends of the cylindrical rotating core rotate through both sides of the mounting platform. The adjustment mechanism includes a transmission frame, a first spur rack, and a first gear. The transmission frame is fixedly connected to the movable handle. The first gear is fixedly connected to one end of the cylindrical rotating core. The first spur rack is machined on the front side of the transmission frame. The first spur rack is located above the first gear and matches the first gear. The length of the first spur rack is equal to the maximum distance between the second ring platform and the first ring platform.

2. The handheld pollination gun for agriculture according to claim 1, characterized in that: Two positioning spherical grooves are opened on the other side of the cylindrical rotating core. A spring rod is installed on the mounting platform. The end of the spring rod is machined into a smooth curved surface that matches the positioning spherical groove.

3. The handheld pollination gun for agriculture according to claim 2, characterized in that: The pollen bottle has a detachable feeding cap at the top.

4. The handheld pollination gun for agriculture according to claim 3, characterized in that: The powder feeding channel includes an upper connecting part, a rotating part, and a lower connecting part. The upper connecting part is detachably connected to the conical bottle mouth. The lower connecting part is fixedly connected to and communicates with the top of the mounting platform. The rotating part is rotatably disposed between the upper connecting part and the lower connecting part. A stirring rod extending into the interior of the pollen bottle and the lower connecting part is fixedly mounted on the inner side of the rotating part. Several connecting rods are connected between the upper connecting part and the lower connecting part. A mounting base is fixedly disposed on the top of the gun body. A rotating shaft is rotatably connected to the mounting base. A first transmission wheel is fixedly connected to the outer wall of the rotating part. A second transmission wheel corresponding to the first transmission wheel is fixedly connected to the rotating shaft. The first transmission wheel and the second transmission wheel are connected by a belt drive. The rotating shaft is also provided with a drive mechanism.

5. The handheld pollination gun for agriculture according to claim 4, characterized in that: The drive mechanism includes a second spur rack and a second gear. The second spur rack is machined on the rear side of the transmission frame, and the second gear is fixedly connected to the rotating shaft. The second spur rack and the second gear are matched.

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