Automatic feeding device for seedling bed of rice transplanter

Abstract

The invention discloses an automatic seedbed feeding device for a rice transplanter, and belongs to the technical field of agricultural planting, the automatic seedbed feeding device comprises a mounting rack, a guide plate and a rice transplanting mechanism are arranged on the mounting rack, and a guide groove is formed in the guide plate and used for providing rice seedlings for the rice transplanting mechanism; a portal frame is arranged on the mounting frame, rotating rods are uniformly, horizontally and rotationally mounted on the inner side wall of the portal frame, and supporting plates are fixedly mounted on the side walls of the rotating rods; when the inserting rod is separated from the supporting plate, the supporting plate drives the rotating rod to rotate until the top wall of the supporting plate is attached to the top wall of the guide plate, the supporting plate is parallel to the guide plate, meanwhile, under the action of the liquid supply mechanism, water in the cavity is discharged through the holes, and the water discharged from the holes flows to the surface of the supporting plate; the friction force between the rice seedlings connected into blocks on the surface of the supporting plate and the supporting plate is reduced, so that the rice seedlings connected into blocks on the surface of the supporting plate can slide into the guide grooves in the surface of the guide plate along the surface of the supporting plate, and the materials are automatically supplied to the guide grooves.

Description

Technical Field

[0001] The present invention relates to the technical field of agricultural planting, and more specifically, to an automatic feeding device for the seedbed of a transplanter. Background Art

[0002] A transplanter is an agricultural machine that can automatically implant rice seedlings into paddy fields. During operation, mechanical claws grab a certain number of rice seedlings from the seedbed on the seedling-planting platform and implant them into the soil to complete automatic transplanting. However, traditional ride-on transplanters require two operators to cooperate to complete the transplanting work. One person is responsible for driving the transplanter, and the other is responsible for feeding the seedbed.

[0003] In the prior art, rice transplanters usually use standardized seedling-raising trays for seedling cultivation, and during transplanting operations, the seedling-raising trays are transported to the seedling-taking position one by one manually or semi-automatically. However, due to the limited seedling storage capacity of the transplanter, it is necessary to frequently stop the machine to replenish the seedling trays during continuous operation, resulting in a reduction in operation efficiency. In addition, the manual feeding method has problems such as high labor intensity and poor positioning accuracy of the seedling trays, so that the operation stability of the seedling-taking mechanism is relatively poor.

[0004] Therefore, an automatic feeding device for the seedbed of a transplanter is proposed. Summary of the Invention

[0005] Aiming at the problems existing in the prior art, the purpose of the present invention is to provide an automatic feeding device for the seedbed of a transplanter, which can realize automatic feeding and improve work efficiency.

[0006] To solve the above problems, the present invention adopts the following technical solutions.

[0007] An automatic feeding device for the seedbed of a transplanter includes a mounting frame, on which a guide plate and a transplanting mechanism are provided. A guide groove is formed on the guide plate, and the guide groove is used to provide seedlings for the transplanting mechanism. A gantry is provided on the mounting frame. Rotating rods are evenly and horizontally rotatably installed on the inner side wall of the gantry, and a support plate is fixedly installed on the side wall of the rotating rod. Corresponding insertion holes are evenly formed on the side wall of the gantry, which are located below the corresponding support plates. Plug rods are slidably installed in the insertion holes. A driving mechanism for driving the plug rods to move is provided on the gantry, and a displacement mechanism for moving the support plate to a specified position is provided on the mounting frame. A cavity is formed on the gantry. Holes communicating with the outside are evenly formed on the side wall of the cavity close to the support plate, and a liquid supply mechanism for supplying moisture to the cavity is provided on the mounting frame.

[0008] Further, the driving mechanism includes a mounting groove formed in the top wall of the jacking hole, and an elastic member is jointly mounted between the side wall of the mounting groove and the plug rod; a threaded rod is vertically rotatably mounted on the side wall of the gantry, and a first slider is threadedly mounted on the threaded rod; a motor and a limiting rod are fixedly mounted on the gantry, the output end of the motor is connected to the rotating shaft of the threaded rod, the first slider is movably sleeved on the limiting rod, and a baffle plate cooperating with the plug rod is fixedly mounted on the side wall of the first slider.

[0009] Further, the displacement mechanism includes a guide rod vertically and fixedly mounted on the mounting frame, a second slider is slidably sleeved on the guide rod, and the gantry is connected to the second slider; a cross plate is fixedly mounted on the bottom wall of the gantry, and an electric telescopic rod is vertically and fixedly mounted on the mounting frame, and the electric telescopic rod is used to push the cross plate upward.

[0010] Further, the liquid supply mechanism includes a conduit fixedly inserted into the top wall of the cross plate, the bottom end of the conduit penetrates the cross plate, and the top end of the conduit extends into the cavity; a water storage tank is formed in the top wall of the mounting frame, a water inlet pipe is fixedly mounted on the output end of the electric telescopic rod, the bottom end of the water inlet pipe extends into the water storage tank, and the top end of the water inlet pipe is located directly below the conduit.

[0011] Further, a corrugated pipe is sleeved outside the guide rod, and both ends of the corrugated pipe are fixedly connected to the second slider and the mounting frame respectively; an air pipe extending into the water inlet pipe is fixedly inserted into the side wall of the corrugated pipe.

[0012] Further, a water inlet valve and a drain valve are fixedly mounted on the bottom end and the top end of the water inlet pipe respectively.

[0013] Further, a first elastic rope is fixedly mounted on the inner wall of the hole, and a flow disturbing block is fixedly mounted on the first elastic rope.

[0014] Further, a second elastic rope is jointly mounted between the inner side walls on the opposite sides of the water storage tank, a spherical filter barrel is fixedly mounted on the second elastic rope, the ratio of the height of the water storage tank to the diameter of the filter barrel is 2:1, the bottom end of the water inlet pipe is inserted into the interior of the filter barrel, and the water inlet pipe is fixedly connected to the filter barrel.

[0015] Further, a sliding groove is formed in the side wall of the second slider, the top end of the sliding groove penetrates the top wall of the second slider, and a guide block slidably cooperating with the second slider is fixedly mounted on the outer wall of the gantry; and the guide block is rectangular.

[0016] Further, it further includes a remote controller and a switch, and a storage battery, a wireless receiving module and a control module are provided on the gantry; The switch is used to control the operation of the electric telescopic rod; The remote controller is used to send signals to the wireless receiving module; The wireless receiving module sends the received signals to the control module; The control module is used to control the operation of the motor; The storage battery is used to supply power to the motor, the wireless receiving module and the control module.

[0017] Compared with the prior art, the beneficial effects of the present invention are as follows: (1) Through the mutual cooperation of the gantry, the rotating rod and the support plate in this solution, when the inserting rod is separated from the contact with the support plate, under the action of gravity, the support plate will drive the rotating rod to rotate until the top wall of the support plate fits with the top wall of the guide plate. At this time, the support plate is parallel to the guide plate. Meanwhile, under the action of the liquid supply mechanism, the water in the cavity is discharged through the holes, and the water discharged from the holes flows to the surface of the support plate, reducing the friction between the seedlings connected in a block on the surface of the support plate and the support plate. Therefore, the seedlings connected in a block on the surface of the support plate can slide along the surface of the support plate to the guide groove on the surface of the guide plate, realizing automatic feeding for the guide groove.

[0018] (2) Through the mutual cooperation of the liquid supply mechanism, the holes and the flow disturbing blocks in this solution, during the drainage process of the holes, the water flow impacts the flow disturbing blocks, and the flow disturbing blocks are separated from the contact with the holes. At this time, under the action of the first elastic rope, the flow disturbing blocks shake, thereby changing the diffusion area of the water discharged from the holes, increasing the contact area between the water flow and the seedlings on the surface of the support plate, and the water falling on the surface of the seedlings gradually flows to the surface of the support plate, improving the lubrication effect and playing a role in ensuring that the seedlings can slide uniformly along the surface of the support plate. Description of the Drawings

[0019] Figure 1 is the overall structural schematic diagram of the present invention; Figure 2 is for the present invention Figure 1 the enlarged structural schematic diagram at M in; Figure 3 is the first sectional structural schematic diagram of the gantry of the present invention; Figure 4 is the second sectional structural schematic diagram of the gantry of the present invention; Figure 5 is for the present invention Figure 4 the enlarged structural schematic diagram at A in; Figure 6 is for the present invention Figure 4 the enlarged structural schematic diagram at B in; Figure 7 is the top view structural schematic diagram of the present invention; Figure 8 is the combined structural schematic diagram of the corrugated pipe, the water inlet pipe and the air pipe of the present invention; Figure 9 is the combined structural schematic diagram of the guide block and the second slider of the present invention; Figure 10 is the combined structural schematic diagram of the remote controller and the switch of the present invention.

[0020] Description of reference numerals in the figure: 1. Mounting frame; 2. Guide plate; 3. Transplanter mechanism; 4. Gantry; 5. Rotating rod; 6. Support plate; 7. Inserting rod; 8. Cavity; 9. Hole; 10. Mounting groove; 11. Elastic member; 12. Threaded rod; 13. First slider; 14. Motor; 15. Limiting rod; 16. Baffle; 17. Guide rod; 18. Second slider; 19. Cross plate; 20. Electric telescopic rod; 21. Conduit; 22. Water storage tank; 23. Water inlet pipe; 24. Bellows; 25. Water inlet valve; 26. Drain valve; 27. First elastic cord; 28. Turbulence block; 29. Second elastic cord; 30. Filter barrel; 31. Guide block; 32. Remote control; 33. Switch; 34. Battery; 35. Wireless receiving module; 36. Control module; 37. Limiting block; 38. Extension plate; 39. Air pipe. Specific implementation mode

[0021] Next, the technical solutions in the embodiments of the present invention will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present invention; obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present invention.

[0022] Embodiment 1: Please refer to Figures 1 to 10 , an automatic feeding device for a transplanter seedbed, including a mounting frame 1, a guide plate 2 and a transplanter mechanism 3 are provided on the mounting frame 1, a guide groove is provided on the guide plate 2, and the guide groove is used to provide seedlings for the transplanter mechanism 3; Among them, the transplanter mechanism 3 is a prior art and will not be elaborated; A gantry 4 is provided on the mounting frame 1, a rotating rod 5 is evenly and horizontally rotatably installed on the inner side wall of the gantry 4, and the rotating rods 5 are evenly distributed from top to bottom, and a support plate 6 is fixedly installed on the side wall of the rotating rod 5; On the side wall of the gantry 4, insertion holes corresponding to the support plates 6 one by one are evenly opened. The insertion holes are located below the corresponding support plates 6. A plug rod 7 is slidably installed in the insertion holes. Therefore, when the plug rod 7 contacts the bottom wall of the support plate 6, it can provide a supporting force for the support plate 6 to make the support plate 6 in a horizontal state. A driving mechanism for driving the movement of the plug rod 7 is provided on the gantry 4, and a displacement mechanism for moving the support plate 6 to a specified position is provided on the mounting frame 1; and a limiting block 37 cooperating with the support plate 6 is provided on the gantry 4; the limiting block 37 is located below the plug rod 7. Therefore, when the support plate 6 rotates, it will be restricted by the limiting block 37 to prevent the upper support plate 6 from contacting the lower support plate 6 during the rotation process. And an extension plate 38 made of an elastic material is fixedly installed at one end of the support plate 6 away from the rotating rod 5. By providing the extension plate 38, it can ensure that the seedlings on the surface of the support plate 6 can move to the surface of the guide plate 2 during the rotation process of the support plate 6. And the extension plate 38 is made of an elastic material. When the extension plate 38 moves and is blocked by the guide plate 2, the extension plate 38 can deform, playing a role in ensuring the normal movement of the gantry 4.

[0023] A cavity 8 is opened on the gantry 4. On the side wall of the cavity 8 close to the support plate 6, holes 9 communicating with the outside are evenly opened, and a liquid supply mechanism for supplying water to the cavity 8 is provided on the mounting frame 1.

[0024] During the working process, when the seedlings on the surface of the guide plate 2 are exhausted, the gantry 4 is driven to move through the displacement mechanism, so that the support plate 6 with seedlings on its surface moves to the surface of the guide plate 2, and then the plug rod 7 below the support plate 6 is driven by the driving mechanism to be drawn out of the gantry 4.

[0025] Since the support plate 6 is installed on the side wall of the rotating rod 5, that is, the rotating rod 5 is located at one end of the support plate 6. Therefore, when the plug rod 7 is separated from the support plate 6, under the action of gravity, the support plate 6 will drive the rotating rod 5 to rotate until the top wall of the support plate 6 fits with the top wall of the guide plate 2. At this time, the support plate 6 is parallel to the guide plate 2. At the same time, under the action of the liquid supply mechanism, the water in the cavity 8 is discharged through the holes 9, and the water discharged from the holes 9 flows to the surface of the support plate 6, reducing the friction between the seedlings connected in blocks on the surface of the support plate 6 and the support plate 6. Therefore, the seedlings connected in blocks on the surface of the support plate 6 can slide along the surface of the support plate 6 into the guide grooves on the surface of the guide plate 2, thereby realizing the function of automatically feeding the guide grooves.

[0026] During the process of feeding the guide grooves, only one person is required to complete it, reducing the operation process and playing a role in improving work efficiency.

[0027] Such as Figure 4 、 Figure 5As shown in the figure, the driving mechanism includes an installation groove 10 opened on the top wall of the insertion hole. An elastic member 11 is installed between the side wall of the installation groove 10 and the insertion rod 7. When the insertion rod 7 is not subjected to an external force, the elastic member 11 is in a natural state. At this time, the end face of the insertion rod 7 near the support plate 6 retracts into the insertion hole, and the end of the insertion rod 7 away from the support plate 6 is located outside the gantry 4. A threaded rod 12 is vertically rotatably installed on the side wall of the gantry 4, and a first slider 13 is threadedly installed on the threaded rod 12. A motor 14 and a limiting rod 15 are fixedly installed on the gantry 4. The output end of the motor 14 is connected to the rotating shaft of the threaded rod 12. The first slider 13 is movably sleeved on the limiting rod 15. The rotation of the first slider 13 is restricted by the limiting rod 15, so that the first slider 13 can only move up and down along the threaded rod 12. Therefore, during the process of the motor 14 driving the threaded rod 12 to rotate, the first slider 13 can move up and down. A baffle 16 that cooperates with the insertion rod 7 is fixedly installed on the side wall of the first slider 13, and the baffle 16 moves up and down together with the first slider 13.

[0028] When it is necessary to place the seedlings on the surface of the support plate 6, first rotate the support plate 6 to make the support plate 6 in a horizontal state, and then manually push the insertion rod 7 to make the insertion rod 7 pass through the insertion hole and move to the lower part of the corresponding support plate 6. At this time, the elastic member 11 is in a stretched state.

[0029] Then start the motor 14, and drive the first slider 13 and the baffle 16 to move upward through the rotating threaded rod 12, so that the baffle 16 gradually moves to the end face of the insertion rod 7 that has been inserted under the corresponding support plate 6.

[0030] At this time, with the cooperation of the baffle 16 and the elastic member 11, the insertion rod 7 can be fixed under the support plate 6 to keep the support plate 6 in a horizontal state.

[0031] As Figure 1 、 Figure 7 shown, the displacement mechanism includes a guide rod 17 vertically and fixedly installed on the mounting frame 1. A second slider 18 is slidably sleeved on the guide rod 17. The gantry 4 is connected to the second slider 18. The position of the gantry 4 can be restricted by the guide rod 17 and the second slider 18 to prevent the gantry 4 from shifting, ensuring that the seedlings on the surface of the support plate 6 can enter the guide groove. A cross plate 19 is fixedly installed on the bottom wall of the gantry 4. An electric telescopic rod 20 with an upward output end is vertically and fixedly installed on the mounting frame 1. The output end of the electric telescopic rod 20 contacts the cross plate 19. The electric telescopic rod 20 is used to push the cross plate 19 upward. The height of the gantry 4 can be adjusted by controlling the extension amount of the output end of the electric telescopic rod 20. Among them, the output end of the electric telescopic rod 20 can extend a specified length, which is the prior art and will not be elaborated here.

[0032] Under the action of gravity, the gantry 4 has a tendency to drive the second slider 18 to slide downward along the guide rod 17. Therefore, the cross plate 19 is in contact with the output end of the electric telescopic rod 20. When the output end of the electric telescopic rod 20 extends or contracts, the gantry 4 will move upward or downward, playing a role in changing the position of the gantry 4.

[0033] As Figure 3 , Figure 4 shown, the liquid supply mechanism includes a conduit 21 fixedly inserted into the top wall of the cross plate 19. The bottom end of the conduit 21 penetrates the cross plate 19, and the top end of the conduit 21 extends into the cavity 8; A water storage tank 22 is provided on the top wall of the mounting frame 1. Since there is water in the paddy field during rice transplanting and the mounting frame 1 will sink into the paddy field mud, at this time, the water in the paddy field will spread to the surface of the top wall of the mounting frame 1 and enter the water storage tank 22. A water inlet pipe 23 is fixedly installed on the output end of the electric telescopic rod 20. The bottom end of the water inlet pipe 23 extends into the water storage tank 22, and the top end of the water inlet pipe 23 is located directly below the conduit 21. Therefore, when the output end of the electric telescopic rod 20 contacts the cross plate 19, the conduit 21 is in communication with the water inlet pipe 23.

[0034] A corrugated pipe 24 is sleeved outside the guide rod 17. The two ends of the corrugated pipe 24 are respectively fixedly connected to the second slider 18 and the mounting frame 1. When the output end of the electric telescopic rod 20 drives the second slider 18 to move upward, the corrugated pipe 24 is stretched, and at this time, the inside of the corrugated pipe 24 is in a negative pressure state; when the second slider 18 moves downward, the corrugated pipe 24 is squeezed, and at this time, the inside of the corrugated pipe 24 is in a high pressure state; an air pipe 39 extending into the water inlet pipe 23 is fixedly inserted on the side wall of the corrugated pipe 24.

[0035] A water inlet valve 25 and a drain valve 26 are respectively fixedly installed at the bottom end and the top end of the water inlet pipe 23, and the ratio of the inner diameter of the corrugated pipe 24 to the inner diameter of the water inlet pipe 23 is 10:1. Therefore, the volume of the stretched corrugated pipe 24 is larger than the volume of the water inlet pipe 23.

[0036] When the inside of the corrugated pipe 24 is in a negative pressure state, under the connection effect of the air pipe 39, at this time, the corrugated pipe 24 absorbs water from the water storage tank 22 through the air pipe 39 and the water inlet valve 25; when the inside of the corrugated pipe 24 is in a high pressure state, the water inside the corrugated pipe 24 is squeezed and discharged into the water inlet pipe 23 through the drain valve 26. When the water inlet pipe 23 is filled with water, the water in the water inlet pipe 23 is discharged through the drain valve 26, and the water flowing out of the drain valve 26 flows along the conduit 21 into the cavity 8, thus playing a role in supplying water to the cavity 8.

[0037] As Figure 6 shown, a first elastic cord 27 is fixedly installed on the inner wall of the hole 9, and a flow disturbing block 28 is fixedly installed on the first elastic cord 27.

[0038] During the drainage process of the hole 9, the water flow impacts the turbulence block 28, and the turbulence block 28 is disengaged from the contact with the hole 9. At this time, under the action of the first elastic rope 27, the turbulence block 28 shakes, thereby changing the diffusion area of the water discharged from the hole 9, increasing the contact area between the water flow and the seedlings on the surface of the support plate 6. The water falling on the surface of the seedlings gradually flows to the surface of the support plate 6, improving the lubrication effect and playing a role in ensuring that the seedlings can slide uniformly along the surface of the support plate 6.

[0039] As Figure 2 shown, a second elastic rope 29 is commonly installed between the inner walls on the opposite sides of the water storage tank 22. A spherical filter barrel 30 is fixedly installed on the second elastic rope 29. The ratio of the height of the water storage tank 22 to the diameter of the filter barrel 30 is 2:1. The bottom end of the water inlet pipe 23 is inserted into the interior of the filter barrel 30, and the water inlet pipe 23 is fixedly connected to the filter barrel 30.

[0040] When the water inlet pipe 23 absorbs water, under the action of the filter barrel 30, impurities in the water can be filtered to prevent the water inlet pipe 23 from being blocked, playing a role in enabling the water inlet pipe 23 to absorb water normally. And during the movement of the transplanter, under the combined action of inertia and the second elastic rope 29, the filter barrel 30 shakes, so that the impurities attached to the surface of the filter barrel 30 can be shaken off, ensuring that the filter barrel 30 can work normally.

[0041] As Figure 9 shown, a chute is formed on the side wall of the second slider 18. The top end of the chute penetrates the top wall of the second slider 18, and a guide block 31 slidably engaged with the second slider 18 is fixedly installed on the outer wall of the gantry 4. Align the guide block 31 on the side wall of the gantry 4 with the chute, and insert the guide block 31 into the chute, then the gantry 4 and the second slider 18 can be connected together, so that the gantry 4 can be driven by the second slider 18 to move up and down; and the guide block 31 is rectangular. Since the rectangular guide block 31 can only move up and down along the chute when arranged in the chute, the gantry 4 can be prevented from shaking, improving the stability of the gantry 4.

[0042] With the cooperation of the guide block 31 and the chute, the quick replacement of the gantry 4 can be realized. When all the seedlings in the currently used gantry 4 are transferred to the guide groove, the operator can immediately replace the pre-prepared gantry 4 full of seedlings, thereby improving the continuity and working efficiency of the transplanting operation.

[0043] As Figure 4 shown, it further includes a remote controller 32 and a switch 33. A storage battery 34, a wireless receiving module 35 and a control module 36 are provided on the gantry 4; The switch 33 is used to control the operation of the electric telescopic rod 20, and the switch 33 is connected in series with the electric telescopic rod 20; The remote controller 32 is used to send signals to the wireless receiving module 35; The wireless receiving module 35 sends the received signal to the control module 36; The control module 36 is used to control the operation of the motor 14; The storage battery 34 is used to supply power to the motor 14, the wireless receiving module 35 and the control module 36.

[0044] Among them, the wireless receiving module 35 receiving the signal sent by the remote controller 32 is the prior art and will not be elaborated here.

[0045] Therefore, during the working process, the driver of the transplanter can conveniently complete the feeding during the driving process.

[0046] The above is only the preferred specific implementation mode of the present invention; however, the protection scope of the present invention is not limited thereto. Any person skilled in the art within the technical scope disclosed by the present invention, according to the technical solution and its improvement concept of the present invention, makes equivalent substitution or change, and should be covered by the protection scope of the present invention.

Claims

1. An automatic feeding device for a seedling bed of a rice transplanter, comprising a mounting frame (1). A guide plate (2) and a rice transplanting mechanism (3) are provided on the mounting frame (1). A guide groove is formed on the guide plate (2), and the guide groove is used to provide seedlings for the rice transplanting mechanism (3). It is characterized in that: A gantry (4) is provided on the mounting frame (1). Rotating rods (5) are evenly and horizontally rotatably mounted on the inner side wall of the gantry (4), and a support plate (6) is fixedly mounted on the side wall of the rotating rod (5). Insertion holes corresponding to the support plates (6) one by one are evenly formed on the side wall of the gantry (4). The insertion holes are located below the corresponding support plates (6). Insertion rods (7) are slidably mounted in the insertion holes. A driving mechanism for driving the insertion rods (7) to move is provided on the gantry (4), and a displacement mechanism for moving the support plate (6) to a designated position is provided on the mounting frame (1). A cavity (8) is formed on the gantry (4). Holes (9) communicating with the outside are evenly formed on the side wall of the cavity (8) close to the support plate (6), and a liquid supply mechanism for supplying moisture to the cavity (8) is provided on the mounting frame (1).

2. The automatic feeding device for the seedbed of a rice transplanter according to claim 1, wherein: The driving mechanism includes a mounting groove (10) formed on the top wall of the insertion hole. An elastic member (11) is jointly mounted between the side wall of the mounting groove (10) and the insertion rod (7). A threaded rod (12) is vertically rotatably mounted on the side wall of the gantry (4). A first slider (13) is threadedly mounted on the threaded rod (12). A motor (14) and a limiting rod (15) are fixedly mounted on the gantry (4). The output end of the motor (14) is connected to the rotating shaft of the threaded rod (12). The first slider (13) is movably sleeved on the limiting rod (15), and a baffle (16) cooperating with the insertion rod (7) is fixedly mounted on the side wall of the first slider (13).

3. The automatic feeding device for the seedbed of a rice transplanter according to claim 2, characterized in that: The displacement mechanism includes a guide rod (17) vertically and fixedly mounted on the mounting frame (1). A second slider (18) is slidably sleeved on the guide rod (17), and the gantry (4) is connected to the second slider (18). A cross plate (19) is fixedly mounted on the bottom wall of the gantry (4). An electric telescopic rod (20) is vertically and fixedly mounted on the mounting frame (1), and the electric telescopic rod (20) is used to push the cross plate (19) to move upward.

4. The automatic feeding device for the seedbed of a rice transplanter according to claim 3, characterized in that: The liquid supply mechanism includes a conduit (21) fixedly inserted on the top wall of the cross plate (19). The bottom end of the conduit (21) penetrates through the cross plate (19), and the top end of the conduit (21) extends into the cavity (8). A water storage tank (22) is formed on the top wall of the mounting frame (1). A water inlet pipe (23) is fixedly mounted on the output end of the electric telescopic rod (20). The bottom end of the water inlet pipe (23) extends into the water storage tank (22), and the top end of the water inlet pipe (23) is located directly below the conduit (21).

5. An automatic seedbed feeding device for a rice transplanter according to claim 4, characterized in that: A bellows (24) is sleeved outside the guide rod (17), and two ends of the bellows (24) are fixedly connected to the second slider (18) and the mounting bracket (1) respectively; an air pipe (39) extending into the water inlet pipe (23) is fixedly inserted on the side wall of the bellows (24).

6. The automatic feeding device for the seedbed of a rice transplanter according to claim 5, characterized in that: A water inlet valve (25) and a drain valve (26) are fixedly installed at the bottom end and the top end of the water inlet pipe (23) respectively.

7. An automatic feeding device for a seedling bed of a rice transplanter according to claim 1, characterized in that: A first elastic cord (27) is fixedly installed on the inner wall of the hole (9), and a flow disturbing block (28) is fixedly installed on the first elastic cord (27).

8. The automatic feeding device for the seedbed of a rice transplanter according to claim 6, characterized in that: A second elastic cord (29) is commonly installed between the inner side walls on the opposite sides of the water storage tank (22), a spherical filter barrel (30) is fixedly installed on the second elastic cord (29), the ratio of the height of the water storage tank (22) to the diameter of the filter barrel (30) is 2:1, the bottom end of the water inlet pipe (23) is inserted into the interior of the filter barrel (30), and the water inlet pipe (23) is fixedly connected to the filter barrel (30).

9. The automatic feeding device for the seedbed of a rice transplanter according to claim 3, characterized in that: A chute is formed in the side wall of the second slider (18), the top end of the chute penetrates through the top wall of the second slider (18), and a guide block (31) slidably matched with the second slider (18) is fixedly installed on the outer wall of the gantry (4); and the guide block (31) is rectangular.

10. The automatic seedling bed feeding device for a rice transplanter according to claim 3, characterized in that: It further includes a remote controller (32) and a switch (33), and a storage battery (34), a wireless receiving module (35) and a control module (36) are arranged on the gantry (4); The switch (33) is used to control the operation of the electric telescopic rod (20); The remote controller (32) is used to send signals to the wireless receiving module (35); The wireless receiving module (35) sends the received signals to the control module (36); The control module (36) is used to control the operation of the motor (14); The storage battery (34) is used to supply power to the motor (14), the wireless receiving module (35) and the control module (36).

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