Air-blowing type rice machine transplanting side deep fertilizing device

Abstract

This invention discloses an air-blowing rice transplanter side-deep fertilization device. The fertilization component includes a container square cylinder, of which several are provided. The lower end of the container square cylinder is connected to a transfer hopper, and one end of the transfer hopper is connected to a material guiding air blowing box. The top of the material guiding air blowing box is connected to a first flexible hose, and all the first flexible hoses are connected to a diversion pipe. A blower is installed at the input end of the diversion pipe. The bottom of the material guiding air blowing box is connected to a second flexible hose, and the output end of the second flexible hose is equipped with a discharge sleeve. A positioning crossbeam is installed at the lower part of the working support, and several positioning seats are installed on the positioning crossbeam. Supporting vertical rods are installed on the positioning seats. The discharge sleeve is installed on the side of the bottom end of the supporting vertical rod through the mounting seat. A furrow opener is installed at the bottom end of the supporting vertical rod to prevent the plant roots in the paddy field soil from being obstructed by the trigger mechanism around the discharge sleeve and accumulating, thereby preventing mud backflow and clogging under sufficient air pressure and maintaining smooth conveying.

Description

Technical Field

[0001] This invention relates to the field of agricultural fertilization machinery technology, specifically an air-blowing rice transplanter with side-deep fertilization device. Background Technology

[0002] During the fertilization process of rice crops, since rice is an aquatic plant, its normal growth and development and the maintenance of its internal water balance cannot be separated from water. Therefore, rice seedlings need to be planted on planting ground with a shallow water layer. This makes it difficult for artificial fertilizer to penetrate to the vicinity of the roots and it tends to float on the water surface. On the other hand, machine fertilization is prone to mud backflow at the fertilizer inlet, which can cause the delivery to be interrupted.

[0003] Patent document CN116602103A discloses an anti-clogging side-deep fertilization mechanism, including a fertilizer box for side-deep fertilization. The discharge end of the grooved wheel on the fertilizer box is connected to the discharge side of the furrow opener through a conveying pipe. A fan body is provided on the side of the fertilizer box for pneumatic conveying of fertilizer inside the conveying pipe. The discharge end of the conveying pipe is connected to a transmission discharge cylinder and is connected to the discharge side of the furrow opener. An annular air chamber is provided inside the transmission discharge cylinder, and a pusher plate assembly is provided on the transmission discharge cylinder away from the furrow opener side. A mud-proof plate that can be pushed by the gas discharged from the annular air chamber is provided on the bottom side of the furrow opener. The bottom end face of the furrow opener has an outward convex surface, and a turning groove is provided on the side wall of the outward convex surface of the furrow opener near the transmission discharge cylinder. The mud-proof plate is slidably sealed inside the turning groove by a sealing element, and the annular air chamber and the bottom end of the turning groove are connected by an air guide pipe.

[0004] The above-mentioned device has the following shortcomings: the triggering structure used in the device is prone to accumulating plant roots and other debris in the paddy field mud, which in turn accumulates mud clumps. This causes the fertilizer inlet to be subject to backflow and adhesion of mud during continuous fertilization. In addition, the device requires the push plate to be continuously pushed by mud a certain distance when reversing to trigger the complete closure of the feed inlet, resulting in poor anti-backflow and adhesion effects. Furthermore, the fertilizer delivery volume and delivery efficiency of the device cannot be precisely controlled and are prone to fluctuations, leading to uneven delivery. Moreover, its own posture cannot be adjusted, resulting in poor adaptability. Summary of the Invention

[0005] The purpose of this invention is to address the aforementioned problems and deficiencies by providing an air-blown rice transplanter with a side-deep fertilization device, thereby improving overall work efficiency.

[0006] This invention solves at least one of the following technical problems:

[0007] (1) The triggering structure used in the above device is prone to accumulating plant roots and other debris in the paddy field mud, which in turn accumulates mud lumps, causing the fertilizer pipe opening to be subject to backflow and adhesion of mud during continuous fertilization.

[0008] (2) When the above device is in use, the push plate needs to be continuously pushed by the mud for a certain distance when reversing in order to trigger the complete closure of the conveying pipe, and the effect of preventing backflow and adhesion is not good.

[0009] (3) The fertilizer delivery volume and delivery efficiency of the above-mentioned device cannot be precisely controlled, and fluctuations are likely to occur, resulting in uneven delivery. Furthermore, the device's own posture cannot be adjusted, and the adaptation effect is poor.

[0010] The objective of this invention can be achieved through the following technical solution: A side-deep fertilization device for rice transplanters using air blowing, comprising a working support, on which a rice transplanter and a fertilization component are mounted. The fertilization component includes a container square tube, of which several are provided. The lower end of the container square tube is connected to a transfer hopper, one end of the transfer hopper is connected to a material guiding air blowing box, the top of the material guiding air blowing box is connected to a first flexible hose, and all the first flexible hoses are connected to a diverter pipe. A blower is installed at the input end of the diverter pipe. The bottom of the material guiding air blowing box is connected to a second flexible hose, and the output end of the second flexible hose is equipped with a discharge sleeve. A positioning crossbeam is installed at the lower part of the working support, and several positioning seats are installed on the positioning crossbeam. Supporting vertical rods are installed on the positioning seats. The discharge sleeve is installed on the side of the bottom end of the supporting vertical rod through a mounting seat. A furrow opener is installed at the bottom end of the supporting vertical rod. The container square tubes and positioning seats correspond one-to-one.

[0011] As a further embodiment of the invention, a conveying auger is rotatably connected to the inner bottom of the transfer hopper, and a transmission box is installed at one end of the guiding air blowing box.

[0012] As a further embodiment of the invention, the shaft of the conveying auger passes through the side wall of the guiding air blowing box and extends into the transmission box, and the inner diameter of the connection between the transfer bucket and the guiding air blowing box is consistent with the outer diameter of the conveying auger.

[0013] As a further aspect of the invention, each transmission box is provided with a common bonding drive shaft, and the bonding drive shaft and each conveying auger are driven by two meshing transmission bevel gears, with a drive motor installed at one end of the bonding drive shaft.

[0014] As a further aspect of the invention, a discharge support tube is fixedly inserted through the middle of the top of the discharge sleeve, and a discharge sleeve is movably sleeved on the outer periphery of the discharge support tube inside the discharge sleeve, with a discharge pipe head being connected through the lower end of the discharge sleeve.

[0015] As a further embodiment of the invention, the outlet direction of the discharge pipe head is opposite to that of the trencher, a sealing sleeve is fixedly sleeved on the outer periphery of the upper end of the discharge sleeve, and a limiting ring is movably sleeved on the outer periphery of the lower end of the discharge sleeve, with the limiting ring fixedly connected to the lower side of the inside of the discharge sleeve.

[0016] As a further embodiment of the invention, a supporting crossbeam is installed on the working support, and the transfer bucket is installed on the supporting crossbeam via a support seat. Transparent side plates are embedded on both sides of the holding cylinder and the transfer bucket.

[0017] As a further embodiment of the invention, a leak-proof spring is fitted around the outer periphery of the middle part of the discharge support tube. The upper end of the leak-proof spring is fixedly connected to the discharge sleeve, and the lower end of the leak-proof spring is fixedly connected to the discharge sleeve and the sealing sleeve.

[0018] As a further aspect of the invention, a through groove is provided on the side wall of the discharge support pipe, and a sealing spring is installed on the inner wall of the discharge support pipe at the position of the through groove.

[0019] The beneficial effects of this invention are:

[0020] (1) Through the working support, transfer bucket and guide air blowing box, the fertilizer is continuously transported in a simple way. Different conveying speeds are generated by changing different guide air blowing boxes and adjusting the tilt angle of the transfer bucket. The conveying process is kept smooth by the blower and the first hose. High pressure airflow prevents blockage and prevents mud from the paddy field ditch from flowing back into the discharge sleeve, so as to facilitate the outward transport of fertilizer. The air pressure and flow rate in each first hose are kept consistent by the diversion pipe, and the air pressure is kept constant, so as to stabilize the transport. By adjusting the height, tilt angle and distribution of the discharge sleeve, support rod and furrow opener, it is applicable to different fertilization scenarios, further improving the coordination between transplanting and fertilization, improving the overall fertilization effect, and eliminating unnecessary triggering mechanisms. The furrow opened by the furrow opener prevents the plant roots in the paddy field soil from being blocked by the triggering mechanism around the discharge sleeve and accumulating. Thus, under sufficient air pressure, mud backflow and blockage are prevented, and the smooth transport of fertilizer is maintained.

[0021] (2) The sealing sleeve and the inner wall of the discharge sleeve maintain the seal of the cavity formed between the discharge sleeve, the discharge support pipe, the discharge sleeve and the sealing sleeve. When the high-pressure airflow from the blower pushes the discharge pipe head out of the discharge sleeve, the cavity formed between the discharge sleeve, the discharge support pipe, the discharge sleeve and the sealing sleeve is stretched, thereby reducing the pressure again and forming an air spring. This facilitates the rebound to the initial state when the high-pressure airflow disappears, allowing the discharge pipe head to be retracted quickly and timely. During the retraction process, the high-pressure airflow gradually disappears but continues to output, maintaining the retraction... During the return process, it still completely prevents the backflow of mud and water. After the return, the outlet of the discharge pipe head is sealed by the discharge sleeve to maintain contact and seal, thus effectively and simply maintaining a sealed state, preventing mud backflow, keeping the inside of the discharge pipe head clean and dry, and simply and effectively preventing fertilizer from getting damp and contaminated. The shape of the discharge pipe head further prevents mud from entering the inside of the discharge pipe head during the transportation of fertilizer, thus effectively blocking mud. It has a simple structure, high working efficiency, and low maintenance cost, making it easy to promote and use on a large scale.

[0022] (3) By driving the motor to rotate the keyed transmission shaft, the various transmission bevel gears are driven synchronously, which in turn drive the various conveying augers synchronously. This ensures that the fertilizer in the transfer hopper is stably and accurately conveyed to the guide air blowing box. The fertilizer is then separated from the conveying augers by the high-pressure airflow from the first hose, preventing fertilizer adhesion. At the same time, the stable rotation of the conveying augers ensures stable fertilizer output, preventing fertilizer from getting stuck in the transfer hopper due to moisture or other reasons. By accurately controlling the rotation speed of the conveying augers, the fertilizer conveying speed is accurately adjusted to meet different fertilization needs, thereby further improving the fertilization effect and overall production efficiency. The anti-leakage spring generates elasticity after the discharge sleeve moves down, ensuring that the fertilizer is delivered after the high-pressure airflow stops conveying fertilizer. The discharge sleeve and discharge pipe head spring back and retract into the discharge sleeve. Thus, even if the cavity formed between the discharge sleeve, discharge support pipe, discharge sleeve and sealing sleeve leaks and is no longer sealed, it will still stably and quickly retract as the fertilizer is no longer transported. When the discharge sleeve moves down, the through groove is no longer blocked by the discharge sleeve, thus balancing the pressure difference between the cavity and the outside. When the fertilizer is delivered down, it hits the sealing spring, so that the sealing spring makes sealing contact with the groove opening of the through groove, and uses the pressure difference between the cavity and the discharge sleeve to keep the sealing spring continuously sealed, preventing fertilizer from entering. When the high-pressure airflow disappears, the pressure difference disappears or even reverses, the sealing spring springs back, eliminating the internal and external pressure difference again, facilitating the return of the anti-leakage spring, thus providing stable protection and preventing mud backflow. Attached Figure Description

[0023] To facilitate understanding by those skilled in the art, the present invention will be further described below with reference to the accompanying drawings.

[0024] Figure 1 This is a side view of the overall structure of the present invention;

[0025] Figure 2 This is a side view of the internal structure of the present invention;

[0026] Figure 3 This is a partial structural side view of the present invention;

[0027] Figure 4 This is a side view of the internal structure of the discharge sleeve of the present invention;

[0028] Figure 5 This is a cross-sectional view of the internal structure of the discharge sleeve of the present invention;

[0029] Figure 6 for Figure 5 Enlarged view of region A in the middle;

[0030] Figure 7 This is a cross-sectional view of the internal structure of the discharge pipe head when it extends out of the discharge sleeve of the present invention;

[0031] In the diagram: 101. Working support; 102. Rice transplanter; 103. Fertilizer application assembly; 201. Container container; 202. Transfer hopper; 203. Material guide air blowing box; 204. First flexible hose; 205. Diverter pipe; 206. Blower; 207. Second flexible hose; 208. Discharge sleeve; 209. Positioning crossbar; 210. Positioning seat; 211. Supporting vertical rod; 212. Mounting seat; 213. Furrow opener; 3 01. Conveying auger; 302. Transmission box; 303. Keyed drive shaft; 304. Transmission bevel gear; 305. Drive motor; 306. Discharge support pipe; 307. Discharge sleeve; 308. Discharge pipe head; 309. Limiting ring; 310. Sealing sleeve; 401. Support crossbeam; 402. Support base; 403. Transparent side plate; 501. Leak-proof spring; 502. Through groove; 503. Sealing spring. Detailed Implementation

[0032] To further illustrate the technical means and effects of the present invention in achieving its intended purpose, the following detailed description of the specific implementation methods, structures, features, and effects of the present invention, in conjunction with the accompanying drawings and preferred embodiments, is provided below.

[0033] Please see Figure 1-7As shown: A pneumatic rice transplanter side-deep fertilization device includes a working support 101, on which a rice transplanter 102 and a fertilization component 103 are mounted. The fertilization component 103 includes several holding square cylinders 201. The lower end of each holding square cylinder 201 is connected to a transfer hopper 202. One end of the transfer hopper 202 is connected to a material guiding pneumatic box 203. The top of the material guiding pneumatic box 203 is connected to a first flexible hose 204. All the first flexible hoses 204 are connected to a diversion pipe 205. The diversion pipe 205 delivers... A blower 206 is installed at the inlet end, and a second hose 207 is connected through the bottom of the material guiding air blowing box 203. A discharge sleeve 208 is installed at the output end of the second hose 207. A positioning crossbeam 209 is installed at the lower part of the working bracket 101. Several positioning seats 210 are installed on the positioning crossbeam 209. A support vertical rod 211 is installed on the positioning seat 210. The discharge sleeve 208 is installed on the side of the bottom end of the support vertical rod 211 through the mounting seat 212. A groove opener 213 is installed at the bottom end of the support vertical rod 211. The container square tube 201 and the positioning seat 210 correspond one-to-one.

[0034] In this embodiment, the entire device is mounted and fixed to the rear of a tractor or other tractor-trailer using the working bracket 101. The working bracket 101 tilts the bottom of the transfer bucket 202, allowing fertilizer to be fed into the guide air blowing box 203. The container 201 increases the fertilizer carrying capacity. As the tractor moves forward, the fertilizer is guided along the second hose 207 and falls into the discharge sleeve 208. During forward movement, the lower part of the support rod 211 and the ditch opener 213 are inserted into the paddy field to open ditches. Subsequently, the blower 206 continuously pressurizes and delivers air, which is evenly distributed to each first hose 204 through the diversion pipe 205 and to each guide air blowing box 203. 3. An airflow with the same wind speed and force is delivered, which carries the fertilizer to the guide air blowing box 203. The fertilizer is then guided along the second hose 207 and finally output through the discharge sleeve 208 into the ditch opened by the furrow opener 213. The tilt angle of the support rod 211 and the height of the furrow opener 213 are adjusted by adjusting the positioning seat 210. The tilt angle and height of the discharge sleeve 208 are adjusted by adjusting the mounting seat 212 to adapt to different fertilization needs. By adjusting the position of the discharge sleeve 208 and the furrow opener 213, the transplanting position of the rice transplanter 102 is coordinated to achieve a more efficient fertilizer absorption effect, thereby ultimately increasing the overall yield.

[0035] A conveying auger 301 is rotatably connected to the inner bottom of the transfer bucket 202. A transmission box 302 is installed at one end of the guiding air blowing box 203. The rotating shaft of the conveying auger 301 passes through the side wall of the guiding air blowing box 203 and extends into the transmission box 302. The inner diameter of the connection between the transfer bucket 202 and the guiding air blowing box 203 is the same as the outer diameter of the conveying auger 301. Each transmission box 302 is provided with a keyed transmission shaft 303. The keyed transmission shaft 303 and each conveying auger 301 are driven by two meshing transmission bevel gears 304. A drive motor 305 is installed at one end of the keyed transmission shaft 303.

[0036] A discharge support pipe 306 is fixedly inserted through the middle of the top of the discharge sleeve 208. A discharge sleeve 307 is movably sleeved on the outer periphery of the discharge support pipe 306 inside the discharge sleeve 208. A discharge pipe head 308 is connected through the lower end of the discharge sleeve 307. The outlet direction of the discharge pipe head 308 is opposite to the direction of the trencher 213. A sealing sleeve 310 is fixedly sleeved on the outer periphery of the upper end of the discharge sleeve 307. A limiting ring 309 is movably sleeved on the outer periphery of the lower end of the discharge sleeve 307. The limiting ring 309 is fixedly connected to the lower side of the inside of the discharge sleeve 208.

[0037] During operation, the sealing sleeve 310 is sealed to the inner wall of the discharge sleeve 208, and the limiting ring 309 is sealed to the discharge sleeve 307. The chamber formed between the discharge sleeve 208, the discharge support pipe 306, the discharge sleeve 307, and the sealing sleeve 310 is in a low-pressure state. In this embodiment, the pressure in this chamber is between one kilopascal and ten thousand kilopascals during operation. Through the low-pressure state, the pressure difference formed with the natural air pressure creates a pressure opposite to its own gravity, keeping the discharge sleeve 307 and the discharge head 308 stably sealed and housed in the discharge sleeve 208 when there is no material flow. When the blower 206 runs and generates a high-pressure airflow, the high-pressure airflow pushes the discharge head 308 downward, thereby causing the outlet of the discharge head 308 to extend out of the discharge sleeve 208. At the lower end of 08, high-pressure airflow carries fertilizer out from the outlet of discharge pipe head 308. When the high-pressure airflow remains stable, the pressure difference between the high-pressure airflow and the natural air pressure creates pressure again, thus keeping the outlet of discharge pipe head 308 extending out of the lower end of discharge sleeve 208 and continuously outputting fertilizer. When the tractor moves to the edge of the paddy field and fertilization needs to be stopped, the blower 206 is turned off, and high-pressure airflow is no longer generated. The direction of the resultant force on discharge pipe head 308 is upward again. By utilizing the pressure difference of the chamber, the discharge sleeve 307 and discharge pipe head 308 are immediately retracted into the discharge sleeve 208, so that the outlet of discharge pipe head 308 is sealed by the discharge sleeve 208, thereby preventing the backflow of mud and facilitating the next fertilizer delivery.

[0038] Simultaneously, the drive motor 305 rotates the keyed transmission shaft 303, synchronously driving each transmission bevel gear 304, which in turn synchronously drives each conveying auger 301. This stably and accurately conveys the fertilizer in the transfer hopper 202 to the guide air blowing box 203. The fertilizer is then separated from the conveying auger 301 by the high-pressure airflow output through the first hose 204, preventing fertilizer adhesion. At the same time, the stable rotation of the conveying auger 301 ensures stable fertilizer output, preventing fertilizer from getting stuck in the transfer hopper 202 due to moisture or other reasons. By accurately controlling the rotation speed of the conveying auger 301, the fertilizer conveying speed can be accurately adjusted to meet different fertilization needs, thereby further improving the fertilization effect and overall production efficiency.

[0039] A support frame 401 is installed on the working support 101. The transfer bucket 202 is installed on the support frame 401 via the support base 402. Transparent side plates 403 are embedded on both sides of the container square tube 201 and the transfer bucket 202. The positions of each transfer bucket 202 and container square tube 201 can be adjusted through the support base 402 and the support frame 401 to avoid interfering with the operation of the rice transplanter 102 by the staff. The transparent side plates 403 allow the staff to intuitively and quickly understand the quantity and conveying speed of fertilizer.

[0040] A leak-proof spring 501 is sleeved on the outer periphery of the middle part of the discharge support pipe 306. The upper end of the leak-proof spring 501 is fixedly connected to the discharge sleeve 208, and the lower end of the leak-proof spring 501 is fixedly connected to the discharge sleeve 307 and the sealing sleeve 310. A through groove 502 is provided through the side wall of the discharge support pipe 306, and a sealing spring 503 is installed on the inner wall of the discharge support pipe 306 at the position of the through groove 502.

[0041] During operation, the spring force generated by the anti-leakage spring 501 after the discharge sleeve 307 moves downward ensures that after the high-pressure airflow stops conveying fertilizer, the discharge sleeve 307 and discharge head 308 rebound and retract into the discharge sleeve 208. This ensures that even if a leak occurs and the seal is broken, the cavity formed between the discharge sleeve 208, discharge support pipe 306, discharge sleeve 307, and sealing sleeve 310 will still retract stably and quickly as fertilizer delivery ceases. When the discharge sleeve 307 moves downward, the through groove 502 is no longer subjected to [unspecified force]. The discharge sleeve 307 blocks the pressure difference between the chamber and the outside. When the fertilizer is conveyed, it impacts the sealing spring 503, causing the sealing spring 503 to make sealing contact with the groove of the through groove 502. The pressure difference between the chamber and the discharge sleeve 307 keeps the sealing spring 503 continuously sealing, preventing fertilizer from entering. When the high-pressure airflow disappears, the pressure difference disappears, or even the direction reverses, the sealing spring 503 rebounds, eliminating the internal and external pressure difference again, facilitating the rebound of the anti-leakage spring 501, thereby providing stable protection and preventing mud backflow.

[0042] In use, the present invention allows workers to easily and continuously transport fertilizer using the working support 101, the transfer bucket 202, and the material guiding air blowing box 203. Different conveying speeds are achieved by changing different material guiding air blowing boxes 203 and adjusting the inclination angle of the transfer bucket 202. The blower 206 and the first flexible hose 204 maintain unobstructed transport. High-pressure airflow prevents blockages and also prevents mud from paddy field ditches from flowing back into the discharge sleeve 208, facilitating the outward transport of fertilizer. The diversion pipe 205 controls the air pressure and flow rate within each first flexible hose 204. To maintain consistency and constant air pressure, thus ensuring stable delivery, the height, angle, and distribution of the discharge sleeve 208, support rod 211, and furrow opener 213 are adjusted. This not only makes the system suitable for different fertilization scenarios but also further improves the coordination between rice transplanting and fertilization, enhancing the overall fertilization effect. Furthermore, it eliminates unnecessary triggering mechanisms. The furrows opened by the furrow opener 213 prevent the plant roots in the paddy field soil from being obstructed by the triggering mechanisms around the discharge sleeve 208 and accumulating, thereby preventing mud backflow and blockage under sufficient air pressure and ensuring smooth fertilizer delivery.

[0043] During operation, the sealing sleeve 310 and the inner wall of the discharge sleeve 208 maintain the seal of the chamber formed between the discharge sleeve 208, the discharge support pipe 306, the discharge sleeve 307, and the sealing sleeve 310. When the high-pressure airflow from the blower 206 pushes the discharge pipe head 308 out of the discharge sleeve 208, the chamber formed between the discharge sleeve 208, the discharge support pipe 306, the discharge sleeve 307, and the sealing sleeve 310 is stretched, thereby reducing the pressure again and forming an air spring. This facilitates the rebound to the initial state when the high-pressure airflow disappears, allowing the discharge pipe head 308 to retract quickly and promptly. During the retraction process, the high-pressure airflow gradually... The system disappears but continues to output, maintaining comprehensive protection against backflow of mud and water during the recovery process. After recovery, the outlet of the discharge pipe head 308 is sealed by the discharge sleeve 208, thus maintaining a tight seal. This effectively and simply keeps the pipe sealed, preventing backflow of mud and keeping the inside of the discharge pipe head 308 clean and dry. It also effectively prevents fertilizer from getting damp and contaminated. The shape of the discharge pipe head 308 further prevents mud from entering the inside of the pipe head 308 during the transport of fertilizer, thus completely blocking mud. The structure is simple, the working efficiency is high, and the maintenance cost is low, making it easy to promote and use on a large scale.

[0044] During operation, the drive motor 305 rotates the keyed transmission shaft 303, synchronously driving each transmission bevel gear 304, which in turn synchronously drives each conveying auger 301. This stably and accurately conveys the fertilizer in the transfer hopper 202 to the guide air blowing box 203. The high-pressure airflow from the first hose 204 then outputs downwards, separating the fertilizer from the conveying auger 301, preventing fertilizer adhesion. Simultaneously, the stable rotation of the conveying auger 301 ensures stable fertilizer output, preventing fertilizer from getting stuck in the transfer hopper 202 due to moisture or other reasons. Accurate control of the conveying auger 301's rotation speed precisely adjusts the fertilizer conveying speed, accurately adapting to different fertilization needs, thereby further improving fertilization effect and overall production efficiency. The anti-leakage spring 501, generated by the downward movement of the discharge sleeve 307, ensures that the discharge sleeve 307 closes after the high-pressure airflow stops conveying fertilizer. 07 and the discharge pipe head 308 rebound and retract into the discharge sleeve 208. Thus, the cavity formed between the discharge sleeve 208, the discharge support pipe 306, the discharge sleeve 307 and the sealing sleeve 310, even after leaks occur and the seal is broken, still stably retracts quickly as the fertilizer stops being transported. When the discharge sleeve 307 moves down, the through groove 502 is no longer blocked by the discharge sleeve 307, thus balancing the pressure difference between the cavity and the outside. When the fertilizer is delivered down, it impacts the sealing spring 503, causing the sealing spring 503 to make sealing contact with the groove opening of the through groove 502. The pressure difference between the cavity and the discharge sleeve 307 keeps the sealing spring 503 continuously sealing, preventing the fertilizer from entering. When the high-pressure airflow disappears, the pressure difference disappears or even reverses, the sealing spring 503 rebounds, eliminating the internal and external pressure difference again, facilitating the rebound of the anti-leakage spring 501, thus providing stable protection and preventing mud backflow.

[0045] The above description is merely a preferred embodiment of the present invention and is not intended to limit the present invention in any way. Although the present invention has been disclosed above with reference to preferred embodiments, it is not intended to limit the present invention. Any person skilled in the art can make some modifications or alterations to the above-disclosed technical content to create equivalent embodiments without departing from the scope of the present invention. Any simple modifications, equivalent changes and alterations made to the above embodiments based on the technical essence of the present invention without departing from the scope of the present invention shall still fall within the scope of the present invention.

Claims

1. A pneumatic rice transplanter side-deep fertilization device, comprising a working support (101), on which a rice transplanter (102) and a fertilization assembly (103) are mounted, characterized in that, The fertilizer application component (103) includes a container (201), which has several containers. The lower end of the container (201) is connected to a transfer hopper (202). One end of the transfer hopper (202) is connected to a material guiding air blowing box (203). The top of the material guiding air blowing box (203) is connected to a first flexible tube (204). All the first flexible tubes (204) are connected to a diversion pipe (205). A blower (206) is installed at the input end of the diversion pipe (205). The bottom of the material guiding air blowing box (203) is connected to a second flexible tube. (207), the output end of the second hose (207) is equipped with a discharge sleeve (208), the lower part of the working bracket (101) is equipped with a positioning crossbeam (209), a number of positioning seats (210) are installed on the positioning crossbeam (209), and a support vertical rod (211) is installed on the positioning seat (210). The discharge sleeve (208) is installed on the side of the bottom end of the support vertical rod (211) through the mounting seat (212). A trench opener (213) is installed at the bottom end of the support vertical rod (211). The container square tube (201) and the positioning seat (210) correspond one to one. The top center of the discharge sleeve (208) is fixedly provided with a discharge support tube (306), and the discharge support tube (306) is located on the outer periphery of the discharge sleeve (208) with a discharge sleeve (307) movably sleeved. The lower end of the discharge sleeve (307) is connected to the discharge pipe head (308). The outlet direction of the discharge pipe head (308) is opposite to that of the trencher (213). A sealing sleeve (310) is fixedly sleeved on the outer periphery of the upper end of the discharge sleeve (307), and a limiting ring (309) is movably sleeved on the outer periphery of the lower end of the discharge sleeve (307). The limiting ring (309) is fixedly connected to the lower side of the inside of the discharge sleeve (208).

2. The air-blown rice transplanter side-deep fertilization device according to claim 1, characterized in that, The inner bottom of the transfer bucket (202) is rotatably connected to a material conveying auger (301), and a transmission box (302) is installed at one end of the material guiding air blowing box (203).

3. The air-blown rice transplanter side-deep fertilization device according to claim 2, characterized in that, The shaft of the conveying auger (301) passes through the side wall of the guide air blowing box (203) and extends into the transmission box (302). The inner diameter of the connection between the transfer bucket (202) and the guide air blowing box (203) is the same as the outer diameter of the conveying auger (301).

4. The air-blown rice transplanter side-deep fertilization device according to claim 2, characterized in that, Each of the aforementioned transmission boxes (302) is provided with a common bonding drive shaft (303). The bonding drive shaft (303) and each conveying auger (301) are driven by two meshing transmission bevel gears (304). A drive motor (305) is installed at one end of the bonding drive shaft (303).

5. The air-blown rice transplanter side-deep fertilization device according to claim 1, characterized in that, The working support (101) is equipped with a support crossbeam (401), and the transfer bucket (202) is installed on the support crossbeam (401) through the support seat (402). Transparent side plates (403) are embedded on both sides of the container square tube (201) and the transfer bucket (202).

6. The air-blown rice transplanter side-deep fertilization device according to claim 5, characterized in that, A leak-proof spring (501) is sleeved on the outer periphery of the middle part of the discharge support tube (306). The upper end of the leak-proof spring (501) is fixedly connected to the discharge sleeve (208), and the lower end of the leak-proof spring (501) is fixedly connected to the discharge sleeve (307) and the sealing sleeve (310).

7. The air-blown rice transplanter side-deep fertilization device according to claim 6, characterized in that, A through groove (502) is provided through the side wall of the discharge support pipe (306), and a sealing spring (503) is installed on the inner wall of the discharge support pipe (306) at the position of the through groove (502).

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