Drought-resisting and seedling-protecting device for oilseed rape

Abstract

The invention relates to the technical field of agricultural planting, in particular to a rape drought resisting and seedling protecting device which comprises supporting devices, two alignment devices are slidably inserted between the two supporting devices, a supply device is fixedly mounted at the top of the rear end of each supporting device, and a displacement component slidably sleeves the side end of each alignment device. The supply device comprises a flow guide pipe, a reset spring, a closed rubber plug and a storage cavity, the flow guide pipe is fixedly installed at the bottom of the front end of the storage cavity, the closed rubber plug is slidably inserted into the rear end of the flow guide pipe, and the reset spring is fixedly installed between the front end of the interior of the storage cavity and the closed rubber plug; the bolts are fixedly installed at the front end and the rear end of the rack, the side frame is fixedly installed on the left side of the rack, and the supporting device comprises an alignment transverse plate, a positioning sleeve, a separating plate and a supporting base frame. By arranging the supply device and the displacement part, the functions of alternately watering and fertilizing and supplementing fertilizer at fixed points when the drought-resistant seedling protection device is used are achieved.

Description

Technical Field

[0001] The present invention relates to the technical field of agricultural planting, and specifically relates to a rapeseed drought-resistant seedling protection device. Background Art

[0002] Rapeseed is a common vegetable and an important oil crop. Rapeseed is rich in vitamins, proteins, and various minerals such as calcium, magnesium, and potassium. Among them, the content of vitamin C is three times that of Chinese cabbage, and carotene and calcium are also very rich. In addition, rapeseed also has the characteristics of low fat and high fiber, making it an excellent choice for weight loss and a healthy diet.

[0003] A seedling protection device is a device or tool used in agricultural production to protect the healthy growth of seedlings. The seedling protection device can effectively reduce the loss of heat and moisture, provide a relatively stable temperature and humidity environment for the seedlings, and is beneficial to the growth and development of the seedlings. Through physical isolation, the protective cover or device can effectively prevent the intrusion of external pests and pathogens, reduce the damage of pests and diseases to the seedlings, and improve the survival rate of crops.

[0004] At present, when the existing rapeseed seedling drought-resistant and seedling protection device is in use, since it uses a plastic film and a bracket to cover and protect, and the seedlings are relatively small, the gap between the laid plastic film and the ground is small, making it inconvenient to directly fertilize and water the seedlings, resulting in the inability to alternate watering and fertilization and the function of supplementing fertilizers at fixed points when the existing drought-resistant and seedling protection device is in use. Therefore, a device is needed to improve the above problems. Summary of the Invention

[0005] In view of the problems in the prior art, the present invention provides a rapeseed drought-resistant seedling protection device.

[0006] The technical solution adopted by the present invention to solve its technical problems is: a rapeseed drought-resistant seedling protection device, including a support device, two alignment devices are slidably inserted between the two support devices, a supply device is fixedly installed at the top of the rear end of the support device, a displacement component is slidably sleeved on the side end of the alignment device, the supply device includes a diversion pipe, a return spring, a sealing rubber plug, and an accumulation cavity, the diversion pipe is fixedly installed at the bottom of the front end of the accumulation cavity, the sealing rubber plug is slidably inserted into the rear end inside of the diversion pipe, and the return spring is fixedly installed between the front end inside of the accumulation cavity and the sealing rubber plug. The alignment device includes a rack, a side frame, and a pin. The pins are fixedly installed at the front and rear ends of the rack, the side frame is fixedly installed on the left side of the rack, the support device includes an alignment cross plate, a positioning sleeve, a separation plate, and a support base frame. The alignment cross plate is fixedly installed at the front end of the support base frame, the separation plate is fixedly installed at the rear end of the support base frame, and the positioning sleeves are symmetrically fixedly installed at the top end of the inner wall of the support base frame.

[0007] Specifically, the displacement component includes a transmission device, a contact device, and a power device. The contact device is fixedly installed at the top of the power device, and the transmission device is fixedly installed on both sides of the contact device.

[0008] Specifically, the transmission device includes a first piston rod, an L-shaped air cylinder, a contact substrate, alignment keys, extension brackets, a first photoelectric sensor, a second photoelectric sensor, a magnetic sheet, an iron plate, and a second piston rod. The first piston rod is slidably inserted into the front end interior of the L-shaped air cylinder, and the second piston rod is slidably inserted into the top end interior of the L-shaped air cylinder. The contact substrate is fixedly installed at the top of the rear end of the second piston rod. The iron plate is fixedly installed at the top of the contact substrate. The alignment keys are fixedly installed on both sides of the iron plate. The extension brackets are fixedly installed at the rear end of the L-shaped air cylinder. The second photoelectric sensor and the first photoelectric sensor are fixedly installed at the front end of the extension brackets, and the second photoelectric sensor is located above the first photoelectric sensor. The magnetic sheet is fixedly installed at the top of the extension brackets.

[0009] Specifically, the contact device includes a guide rod, a filling cavity, a transfer cavity, and a first spray head. The first spray head is fixedly installed between the two transfer cavities. The filling cavity is fixedly installed at the rear end of the top of the transfer cavity. The guide rod is fixedly installed at the front end of the top of the filling cavity.

[0010] Specifically, the power device includes a double-shaft motor, a support top frame, a first bolt, an alignment clamping plate, a gear, and a second spray head. The double-shaft motor is fixedly installed at the center of the bottom end of the support top frame. The gear is fixedly installed at the center of both ends of the double-shaft motor. The first bolt is threadedly inserted into the bottom of both ends of the support top frame. The alignment clamping plate is slidably sleeved on the first bolt. The second spray head is fixedly installed on both sides of the bottom of the support top frame.

[0011] Specifically, the storage cavities are symmetrically and fixedly installed at the rear end of the support base frame. The plug pin is slidably inserted into the top end interior of the positioning sleeve. The L-shaped air cylinders are fixedly installed on both sides of the transfer cavity. The transfer cavities are symmetrically and fixedly installed at the top of the support top frame. The alignment clamping plate is slidably sleeved on the side end of the side frame away from the rack. The gear meshes with the top of the rack.

[0012] Specifically, the interior of the storage cavity is provided in a hollow state. The inner diameter of the diversion pipe is larger than the outer diameter of the guide rod. The diversion pipe is horizontally aligned with the guide rod. The alignment cross plate is horizontally aligned with the first piston rod. Plug rods are fixedly installed at the bottom ends of both sides of the support base frame.

[0013] Specifically, the inside of the L-shaped air cylinder is provided in a hollow state, and a sealed cavity is formed among the first piston rod, the L-shaped air cylinder and the second piston rod. The rear end of the top of the alignment key is inclined at 30°, and the separation plate is horizontally aligned with the second photoelectric sensor.

[0014] Specifically, the inside of the filling cavity is provided in a hollow state, and the transfer cavity, the first spray head and the filling cavity communicate with each other. Solenoid valves are fixedly installed at both ends of the top of the second spray head.

[0015] Specifically, the support base frame further includes a guiding bracket, a second bolt and a positioning card plate. The guiding brackets are symmetrically and fixedly installed on both sides of the support base frame. The second bolts are symmetrically and rotatably installed on both sides of the support base frame, and the second bolts are located between the two guiding brackets. The positioning card plate is slidably sleeved on the guiding brackets.

[0016] Advantages of the present invention:

[0017] First, when the dual-axis motor starts in the present invention, it can drive the gear to rotate forward and backward, so that the gear can drive the support top frame to reciprocate on the rack. When the support top frame moves to one end, the first piston rod can squeeze the second piston rod to move upward, so that the second photoelectric sensor can open the electromagnetic valve on the second spray head. And when the support top frame moves to the other end, the contact substrate can contact the first photoelectric sensor, so that the first spray head can perform fertilization work, completing the work of alternating fertilization and watering.

[0018] Second, when the support top frame moves backward to the limit position in the present invention, it can drive the guide rod to insert into the inside of the diversion pipe, so as to squeeze the sealed rubber plug out of the inside of the diversion pipe. Thus, the liquid fertilizer inside the storage cavity can be discharged into the transfer cavity through the diversion pipe, so that the transfer cavity can be supplemented with fertilizer. And when the support top frame is far away from the storage cavity, the guide rod can be separated from the sealed rubber plug, so that the sealed rubber plug can block the inside of the diversion pipe to prevent the liquid fertilizer inside the storage cavity from flowing out, completing the work of supplementing the liquid fertilizer inside the transfer cavity. Description of the drawings

[0019] The present invention will be further described below with reference to the drawings and embodiments.

[0020] Figure 1 It is a front-view perspective three-dimensional structure diagram of the main body in the present invention;

[0021] Figure 2 It is a partial sectional view of the supply device in the present invention;

[0022] Figure 3 It is a front-view perspective three-dimensional structure diagram of the alignment device in the present invention;

[0023] Figure 4 Schematic diagram of the three-dimensional structure of the support device in the present invention from the front view;

[0024] Figure 5 Schematic diagram of the three-dimensional structure of the displacement component in the present invention from the front view;

[0025] Figure 6 Schematic diagram of the three-dimensional structure of the transmission device in the present invention from the front view;

[0026] Figure 7 Schematic diagram of the three-dimensional structure of the contact device in the present invention from the front view;

[0027] Figure 8 Schematic diagram of the three-dimensional structure of the power device in the present invention from the front view;

[0028] Figure 9 Schematic diagram of the three-dimensional structure of the second embodiment of the support base in the present invention from the front view.

[0029] In the figure: 1 - supply device, 2 - alignment device, 3 - support device, 4 - displacement component, 5 - diversion pipe, 6 - return spring, 7 - airtight rubber plug, 8 - accumulation cavity, 9 - rack, 10 - side frame, 11 - pin, 12 - alignment cross plate, 13 - positioning sleeve, 14 - separation plate, 15 - support base, 16 - transmission device, 17 - contact device, 18 - power device, 19 - first piston rod, 20 - L-shaped air cylinder, 21 - contact substrate, 22 - alignment key, 23 - extension bracket, 24 - first photoelectric inductor, 25 - second photoelectric inductor, 26 - magnetic sheet, 27 - iron plate, 28 - second piston rod, 29 - guide rod, 30 - filling cavity, 31 - transfer cavity, 32 - first spray head, 33 - biaxial motor, 34 - support top frame, 35 - first bolt, 36 - alignment card plate, 37 - gear, 38 - second spray head, 39 - guide bracket, 40 - second bolt, 41 - positioning card plate. Detailed implementation manners

[0030] In order to enable those skilled in the art to better understand the solution of the present application, the technical solutions in the embodiments of the present application will be clearly and completely described below in conjunction with the accompanying drawings in the embodiments of the present application. Obviously, the described embodiments are only a part of the embodiments of the present application, rather than all of the embodiments. Based on the embodiments in the present application, all other embodiments obtained by those of ordinary skill in the art without making creative efforts shall fall within the protection scope of the present application.

[0031] The present invention will be further described below in conjunction with the accompanying drawings.

[0032] Embodiment 1

[0033] AsFigure 1 , Figure 2 , Figure 3 and Figure 4 As shown in Figure 1 , Figure 2 , Figure 3 and Figure 4 , a rape drought-resistant seedling protection device of the present invention includes a support device 3. Two alignment devices 2 are slidably inserted between the two support devices 3. A supply device 1 is fixedly installed at the top of the rear end of the support device 3. A displacement member 4 is slidably sleeved on the side end of the alignment device 2. The supply device 1 includes a diversion pipe 5, a return spring 6, a sealing rubber plug 7 and an accumulation cavity 8. The diversion pipe 5 is fixedly installed at the bottom of the front end of the accumulation cavity 8. The sealing rubber plug 7 is slidably inserted into the inner part of the rear end of the diversion pipe 5, and the return spring 6 is fixedly installed between the front end inside the accumulation cavity 8 and the sealing rubber plug 7. The alignment device 2 includes a rack 9, a side frame 10 and a pin 11. The pins 11 are fixedly installed at the front and rear ends of the rack 9. The side frame 10 is fixedly installed on the left side of the rack 9. The support device 3 includes an alignment cross plate 12, a positioning sleeve 13, a separation plate 14 and a support base frame 15. The alignment cross plate 12 is fixedly installed at the front end of the support base frame 15. The separation plate 14 is fixedly installed at the rear end of the support base frame 15. The positioning sleeves 13 are symmetrically fixedly installed at the top end of the inner wall of the support base frame 15.

[0034] As Figure 5 shown in and

[0034] , the displacement member 4 includes a transmission device 16, a contact device 17 and a power device 18. The contact device 17 is fixedly installed at the top of the power device 18. The transmission device 16 is fixedly installed on both sides of the contact device 17 and can support the contact device 17 to work.

[0035] As Figure 6 shown in Figure 5 , the transmission device 16 includes a first piston rod 19, an L-shaped air cylinder 20, a contact substrate 21, an alignment key 22, an extension bracket 23, a first photoelectric sensor 24, a second photoelectric sensor 25, a magnetic sheet 26, an iron plate 27 and a second piston rod 28. The first piston rod 19 is slidably inserted into the inner part of the front end of the L-shaped air cylinder 20. The second piston rod 28 is slidably inserted into the inner part of the top end of the L-shaped air cylinder 20. The contact substrate 21 is fixedly installed at the top of the rear end of the second piston rod 28. The iron plate 27 is fixedly installed at the top of the contact substrate 21. The alignment keys 22 are fixedly installed on both sides of the iron plate 27. The extension bracket 23 is fixedly installed at the rear end of the L-shaped air cylinder 20. The second photoelectric sensor 25 and the first photoelectric sensor 24 are fixedly installed at the front end of the extension bracket 23, and the second photoelectric sensor 25 is located above the first photoelectric sensor 24. The magnetic sheet 26 is fixedly installed at the top of the extension bracket 23. The iron plate 27 can be adsorbed by the magnetic sheet 26, so that the contact substrate 21 can be prevented from falling down. Moreover, since the weight of the second piston rod 28 and the contact substrate 21 is greater than the weight of the first piston rod 19, the first piston rod 19 can be conveniently reset.

[0036] As Figure 7The contact device 17 includes a guide rod 29, a filling cavity 30, a transfer cavity 31 and a first spray head 32. The first spray head 32 is fixedly installed between the two transfer cavities 31. The filling cavity 30 is fixedly installed at the top rear end of the transfer cavity 31. The guide rod 29 is fixedly installed at the top front end of the filling cavity 30. The filling cavity 30 and the transfer cavity 31 are communicated with each other, so that the filling cavity 30 can replenish liquid fertilizer into the interior of the transfer cavity 31.

[0037] like Figure 8 The power device 18 includes a dual-axis motor 33, a support frame 34, a first bolt 35, an alignment card plate 36, a gear 37 and a second spray head 38. The dual-axis motor 33 is fixedly installed at the bottom center of the support frame 34, the gear 37 is fixedly installed at the two end centers of the dual-axis motor 33, the first bolt 35 is threadedly inserted into the bottom of the two ends of the support frame 34, the alignment card plate 36 is slidably sleeved on the first bolt 35, and the second spray head 38 is fixedly installed on both sides of the bottom of the support frame 34. When the first bolt 35 is screwed to the limit position, the alignment card plate 36 can be driven to be sleeved on the outer ring of the side frame 10, so that the support frame 34 can be guaranteed to move in a straight line.

[0038] The storage chamber 8 is symmetrically fixedly installed at the rear end of the support base frame 15, the latch 11 is slidably inserted into the top of the positioning sleeve 13, the L-shaped air cylinder 20 is fixedly installed on both sides of the transfer chamber 31, the transfer chamber 31 is symmetrically fixedly installed at the top of the support top frame 34, the alignment card plate 36 is slidably sleeved on the side end of the side frame 10 away from the rack 9, the gear 37 is meshed with the top of the rack 9, the interior of the storage chamber 8 is set in a hollow state, the inner diameter of the guide tube 5 is larger than the outer diameter of the guide rod 29, the guide tube 5 is horizontally aligned with the guide rod 29, and the alignment cross plate 12 is aligned with the first movable The plug rod 19 is aligned horizontally, and plug rods are fixedly installed on the bottom ends of both sides of the support base 15. The interior of the L-shaped gas cylinder 20 is set in a hollow state, and a closed cavity is formed between the first piston rod 19, the L-shaped gas cylinder 20 and the second piston rod 28. The top rear end of the alignment key 22 is inclined at 30°, the separation plate 14 is horizontally aligned with the second photoelectric sensor 25, the interior of the filling cavity 30 is set in a hollow state, and the transfer cavity 31, the first spray head 32 and the filling cavity 30 are interconnected, and solenoid valves are fixedly installed at both ends of the top of the second spray head 38.

[0039] The working principle of Embodiment 1 is as follows: When in use, first insert the insertion rods at the bottom ends on both sides of the support base frame 15 into the ground, so that the support base frame 15 can be installed on the ground. Subsequently, the pin 11 can be inserted into the positioning sleeve 13, so that the support rack 9 can be placed inside the support base frame 15. At the same time, the displacement component 4 is moved as a whole into the support base frame 15 until the gear 37 meshes with the top end of the rack 9, and the alignment clamping plate 36 is snap-fitted onto the side frame 10. Then, the first bolt 35 is screwed to the limit position, so that the alignment clamping plate 36 can be snap-fitted onto the side frame 10 to prevent the support top frame 34 from tilting during displacement. Subsequently, an external plastic film can be laid on the outer surface of the support base frame 15 to cover and protect the seedlings. At this time, the double-shaft motor 33 can be started to drive the support top frame 34 to displace backward. Through the adsorption and fitting of the iron plate 27 and the magnetic sheet 26, when the support top frame 34 displaces backward, the contact substrate 21 can be fitted with the second photoelectric sensor 25. Solenoid valves are fixedly installed at both ends of the second sprinkler head 38, and the solenoid valves are connected to an external water pipe. The solenoid valves are electrically connected to the second photoelectric sensor 25. When the contact substrate 21 is fitted with the second photoelectric sensor 25, the second photoelectric sensor 25 can be triggered to start the solenoid valve on the second sprinkler head 38, so that the second sprinkler head 38 can spray water downward to irrigate the seedlings on the ground. Subsequently, when the support top frame 34 moves backward to the limit position, it can drive the top end of the alignment key 22 to contact the bottom end of the separation plate 14. Due to the limitation of the separation plate 14, the alignment key 22 will drive the contact substrate 21 to move downward, so that the iron plate 27 can be separated from the magnetic sheet 26, and thus the second piston rod 28 will enter the L-shaped air cylinder 20 again, so that the first piston rod 19 can be reset. And when the second piston rod 28 moves downward and resets, it can drive the contact substrate 21 to contact the top end of the first photoelectric sensor 24. Since the solenoid valve inside the transfer cavity 31 is electrically connected to the first photoelectric sensor 24, when the contact substrate 21 contacts the first photoelectric sensor 24, the solenoid valve inside the transfer cavity 31 can be triggered to start, so that the first sprinkler head 32 can spray liquid fertilizer downward. And when the contact substrate 21 is separated from the second photoelectric sensor 25, the second photoelectric sensor 25 will lose the induction signal, so that the solenoid valve on the second sprinkler head 38 stops working, preventing the second sprinkler head 38 from continuously spraying water when the first sprinkler head 32 sprays liquid fertilizer. At the same time, when the support top frame 34 moves backward to the limit position, the guide rod 29 can also be inserted into the inside of the diversion pipe 5, so that the sealed rubber plug 7 can be extruded out of the rear end inside of the diversion pipe 5. When the support top frame 34 moves backward to the limit position, the filling cavity 30 can be located directly below the diversion pipe 5. When the guide rod 29 is completely inserted into the inside of the diversion pipe 5, the liquid fertilizer inside the accumulation cavity 8 can flow into the filling cavity 30 through the diversion pipe 5. Since the filling cavity 30 communicates with the inside of the transfer cavity 31,It enables liquid fertilizer to be supplemented into the interior of the transfer cavity 31. Subsequently, when the support top frame 34 moves backward to the limit position, the double-shaft motor 33 can be started to drive the gear 37 to rotate in the reverse direction. Thus, the support top frame 34 can displace forward, causing the support top frame 34 to drive the first sprinkler head 32 to move forward to fertilize the seedlings on the ground. Moreover, when the guide rod 29 is withdrawn from the interior of the diversion pipe 5, the return spring 6 can drive the airtight rubber plug 7 to reset, thereby closing the interior of the diversion pipe 5 to prevent the liquid accumulated in the cavity 8 from flowing out through the diversion pipe 5. Subsequently, when the support top frame 34 moves forward to the limit position, it can drive the first piston rod 19 to contact the alignment cross plate 12. Restricted by the alignment cross plate 12, the first piston rod 19 can enter the interior of the L-shaped air cylinder 20, causing the second piston rod 28 to drive the contact substrate 21 to move upward. Thus, the contact substrate 21 can contact the second photoelectric inductor 25 again to water the seedlings on the ground and complete the work.

[0040] Embodiment 2

[0041] On the basis of Embodiment 1, as Figure 9 shown, the support base frame 15 further includes a guiding bracket 39, a second bolt 40, and a positioning card board 41. The guiding brackets 39 are symmetrically and fixedly installed on both sides of the support base frame 15. The second bolts 40 are symmetrically and rotatably installed on both sides of the support base frame 15, and the second bolts 40 are located between the two guiding brackets 39. The positioning card board 41 is slidably sleeved on the guiding brackets 39.

[0042] When implementing this embodiment, when the support base frame 15 is installed on the ground, an external plastic film can be laid on the outer surface of the support base frame 15. At the same time, the edge of the plastic film can be moved between the positioning card board 41 and the support base frame 15. Subsequently, the second bolt 40 can be screwed and rotated. Since the positioning card board 41 is threadedly sleeved on the outer ring of the second bolt 40, when the second bolt 40 is screwed and rotated, it can drive the positioning card board 41 to move towards one end close to the support base frame 15. At the same time, since the positioning card board 41 is slidably sleeved on the guiding brackets 39, it can ensure that the positioning card board 41 moves in a straight line. When the positioning card board 41 moves to the limit position, it can squeeze the plastic film and the support base frame 15 to be tightened. Moreover, since plastic gasket is installed on the surface of the opposite ends of the positioning card board 41 and the support base frame 15, it can prevent the plastic film from slipping when being fixed, thus completing the work of quickly positioning and installing the plastic film.

[0043] Although the embodiments of the present invention have been shown and described, for those of ordinary skill in the art, it can be understood that various changes, modifications, substitutions, and variations can be made to these embodiments without departing from the principles and spirit of the present invention. The scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A rapeseed drought resistance and seedling protection device, comprising a supporting device (3), two alignment devices (2) are slidably inserted between the two supporting devices (3), a supply device (1) is fixedly installed on the top of the rear end of the supporting device (3), and a displacement component (4) is slidably sleeved on the side end of the alignment device (2), characterized in that: The replenishing device (1) comprises a flow guide tube (5), a return spring (6), a sealed rubber plug (7) and a storage cavity (8); the flow guide tube (5) is fixedly mounted at the front end bottom of the storage cavity (8); the sealed rubber plug (7) is slidably inserted into the rear end of the flow guide tube (5); and the return spring (6) is fixedly mounted between the front end of the storage cavity (8) and the sealed rubber plug (7); the alignment device (2) comprises a rack (9), a side frame (10) and a latch (11); the latch ( 11) is fixedly mounted on the front and rear ends of the rack (9), the side frame (10) is fixedly mounted on the left side of the rack (9), the support device (3) comprises a positioning cross plate (12), a positioning sleeve (13), a separation plate (14) and a support base frame (15), the positioning cross plate (12) is fixedly mounted on the front end of the support base frame (15), the separation plate (14) is fixedly mounted on the rear end of the support base frame (15), and the positioning sleeve (13) is symmetrically fixedly mounted on the top of the inner wall of the support base frame (15).

2. The rapeseed drought resistance and seedling protection device according to claim 1, characterized in that: The displacement component (4) comprises a transmission device (16), a contact device (17) and a power device (18); the contact device (17) is fixedly mounted on the top of the power device (18); and the transmission device (16) is fixedly mounted on both sides of the contact device (17).

3. The rapeseed drought resistance and seedling protection device according to claim 2, characterized in that: The transmission device (16) comprises a first piston rod (19), an L-shaped air cylinder (20), a contact substrate (21), an alignment key (22), an extension bracket (23), a first photoelectric sensor (24), a second photoelectric sensor (25), a magnetic sheet (26), an iron plate (27) and a second piston rod (28); the first piston rod (19) is slidably inserted into the front end of the L-shaped air cylinder (20); the second piston rod (28) is slidably inserted into the top end of the L-shaped air cylinder (20); the contact substrate (21) is fixedly mounted on the second piston rod The rear end top of the rod (28), the iron plate (27) is fixedly mounted on the top of the contact substrate (21), the alignment key (22) is fixedly mounted on both sides of the iron plate (27), the extension bracket (23) is fixedly mounted on the rear end of the L-shaped gas cylinder (20), the second photoelectric sensor (25) and the first photoelectric sensor (24) are fixedly mounted on the front end of the extension bracket (23), and the second photoelectric sensor (25) is located above the first photoelectric sensor (24), and the magnetic suction sheet (26) is fixedly mounted on the top of the extension bracket (23).

4. The rapeseed drought resistance and seedling protection device according to claim 3, characterized in that: The contact device (17) comprises a guide rod (29), a filling chamber (30), a transfer chamber (31) and a first spray head (32); the first spray head (32) is fixedly mounted between the two transfer chambers (31); the filling chamber (30) is fixedly mounted at the top rear end of the transfer chamber (31); and the guide rod (29) is fixedly mounted at the top front end of the filling chamber (30).

5. The rapeseed drought resistance and seedling protection device according to claim 4, characterized in that: The power device (18) comprises a double-axis motor (33), a supporting top frame (34), a first bolt (35), an alignment card plate (36), a gear (37) and a second spray head (38); the double-axis motor (33) is fixedly mounted at the bottom center of the supporting top frame (34); the gear (37) is fixedly mounted at the centers of both ends of the double-axis motor (33); the first bolt (35) is threadedly inserted into the bottom of both ends of the supporting top frame (34); the alignment card plate (36) is slidably sleeved on the first bolt (35); and the second spray head (38) is fixedly mounted on both sides of the bottom of the supporting top frame (34).

6. The rapeseed drought resistance and seedling protection device according to claim 5, characterized in that: The storage chamber (8) is symmetrically fixedly mounted on the rear end of the support base frame (15), the latch (11) is slidably inserted into the top end of the positioning sleeve (13), the L-shaped air cylinder (20) is fixedly mounted on both sides of the transfer chamber (31), the transfer chamber (31) is symmetrically fixedly mounted on the top end of the support top frame (34), the alignment card plate (36) is slidably sleeved on the side end of the side frame (10) away from the rack (9), and the gear (37) is meshed with the top end of the rack (9).

7. The rapeseed drought resistance and seedling protection device according to claim 6, characterized in that: The interior of the storage cavity (8) is arranged in a hollow state, the inner diameter of the guide tube (5) is larger than the outer diameter of the guide rod (29), the guide tube (5) is horizontally aligned with the guide rod (29), the alignment cross plate (12) is horizontally aligned with the first piston rod (19), and the bottom ends of both sides of the support base (15) are fixedly mounted with plug rods.

8. The rapeseed drought resistance and seedling protection device according to claim 7, characterized in that: The interior of the L-shaped gas cylinder (20) is arranged in a hollow state, and a closed cavity is formed between the first piston rod (19), the L-shaped gas cylinder (20) and the second piston rod (28). The top rear end of the alignment key (22) is arranged to be inclined at 30 degrees, and the separation plate (14) is horizontally aligned with the second photoelectric sensor (25).

9. The rapeseed drought resistance and seedling protection device according to claim 8, characterized in that: The interior of the filling chamber (30) is arranged in a hollow state, and the transfer chamber (31), the first spray head (32) and the filling chamber (30) are interconnected, and electromagnetic valves are fixedly installed at both ends of the top of the second spray head (38).

10. The rapeseed drought resistance and seedling protection device according to claim 9, characterized in that: The support base (15) further comprises a guide bracket (39), a second bolt (40) and a positioning card plate (41); the guide bracket (39) is symmetrically fixedly mounted on both sides of the support base (15); the second bolt (40) is symmetrically rotationally mounted on both sides of the support base (15); the second bolt (40) is located between the two guide brackets (39); and the positioning card plate (41) is slidably sleeved on the guide bracket (39).

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