Seedling transplanting device for agricultural planting

Abstract

The invention relates to the technical field of seedling transplanting, and discloses a seedling transplanting device for agricultural planting, which comprises a trolley, a plurality of seedling storage mechanisms are fixedly mounted on the trolley, the seedling storage mechanisms are used for storing seedlings to be transplanted, and an auxiliary discharging mechanism is mounted on the trolley. The auxiliary discharging mechanism is attached to the bottom of the seedling storage mechanism, an automatic punching mechanism is installed below the front side of the trolley, an automatic soil covering mechanism is installed below the rear side of the trolley, the seedling storage mechanism comprises a supporting frame, a plurality of seedling storage cylinders and an indicating rod, the supporting frame is fixedly installed on the trolley, and the seedling storage cylinders are fixed to the supporting frame. The bottoms of the seedling storage barrels are in an opening state, the seedling storage barrels are evenly distributed on the supporting frame in a row, and an indicating rod is fixed to the bottom of the supporting frame and extends to the position under the seedling storage barrel at the rightmost end of the supporting frame. Punching, planting and soil covering are automatically carried out, manpower is saved, and the working efficiency is higher.

Description

Technical Field

[0001] The invention relates to the technical field of seedling transplanting, and in particular to a seedling transplanting device for agricultural planting. Background Art

[0002] In agricultural planting, seedlings are often raised first, and then they need to be transplanted into the fields. At present, a lot of manual operations are required when transplanting seedlings. People need to use tools to dig planting holes in the fields first, and then place the seedlings in the planting holes. Finally, tools are used to bury the roots of the seedlings. There are many operation steps, which are very labor-intensive and have low work efficiency. Therefore, in view of the above situation, it is urgent to develop an agricultural seedling transplanting device that can automatically perform drilling, planting and covering, save manpower, and has higher work efficiency, so as to overcome the shortcomings in current practical applications and meet current needs. Summary of the invention

[0003] The object of the present invention is to provide a seedling transplanting device for agricultural planting to solve the problems raised in the above-mentioned background technology.

[0004] In order to achieve the above object, the present invention adopts the following technical solutions:

[0005] A seedling transplanting device for agricultural planting comprises a trolley, a seedling storage mechanism, an auxiliary material unloading mechanism, an automatic punching mechanism and an automatic soil covering mechanism, wherein a plurality of seedling storage mechanisms are fixedly mounted on the trolley, the seedling storage mechanism being used to store seedlings that need to be transplanted, the auxiliary material unloading mechanism being mounted on the trolley, the auxiliary material unloading mechanism being in contact with the bottom of the seedling storage mechanism, the automatic punching mechanism being mounted at the lower front side of the trolley, and the automatic soil covering mechanism being mounted at the lower rear side of the trolley, the seedling storage mechanism comprising: a support frame, a seedling storage tube and an indicator rod, the support frame being fixedly mounted on the trolley, a plurality of seedling storage tubes being fixed on the support frame, the bottom of the seedling storage tubes being in an open state, a plurality of the seedling storage tubes being evenly distributed in a row on the support frame, an indicator rod being fixed at the bottom of the support frame, the indicator rod extending to just below the seedling storage tube at the rightmost end of the support frame.

[0006] Preferably: the auxiliary unloading mechanism includes: a first motor, a lead screw, a threaded block, a material baffle plate, a slider and a linear slide rail, the first motor is fixedly mounted on the trolley, the lead screw is rotatably connected to the trolley, the output shaft of the first motor is fixed to the lead screw, a threaded block is mounted on the lead screw, one side of the threaded block is fixed to the material baffle plate, a slider is fixedly mounted on the side of the material baffle plate, the slider is slidably mounted on the linear slide rail, and the linear slide rail is fixedly mounted on the trolley.

[0007] Preferably, the baffle plate is attached to the bottom of the seedling storage tube.

[0008] Preferably: the automatic punching mechanism comprises: an electric telescopic rod, a lifting plate, a hole puncher, a first gear, a second gear, a support shaft, a second motor and a third gear, the number of the electric telescopic rods is two, the electric telescopic rod is fixedly installed on the lower side of the trolley, the telescopic end of the electric telescopic rod is fixed to the lifting plate, a plurality of hole punchers are rotatably connected to the lifting plate, and the plurality of hole punchers are evenly distributed on the lifting plate in a row, a first gear is fixedly installed on the upper end of each of the hole punchers, a second gear is installed between every two adjacent first gears, the second gear is rotatably connected to the lifting plate through the support shaft, a second motor is fixedly installed on the lifting plate, a third gear is fixedly installed on the output shaft of the second motor, and the third gear is meshed with a first gear.

[0009] Preferably, the distance between two adjacent punchers is the same as the distance between two adjacent seedling storage tubes.

[0010] Preferably: the automatic soil covering mechanism comprises: a third motor, a transmission shaft, a bidirectional screw, a first external thread, a second external thread, a first threaded sleeve, a second threaded sleeve, a limiting guide rod and a bulldozer plate, the third motor is fixedly mounted on the bottom of the trolley, the transmission shaft is rotatably connected to the bottom of the trolley, the output shaft of the third motor is fixed to the transmission shaft, a plurality of bidirectional screws are fixedly mounted on the transmission shaft, the right half of the bidirectional screw is provided with a first external thread, a first threaded sleeve matching therewith is mounted on the outer side of the first external thread, the left half of the bidirectional screw is provided with a second external thread, a second threaded sleeve matching therewith is mounted on the outer side of the second external thread, limiting guide rods inserted into the trolley are fixed on the upper sides of the first threaded sleeve and the second threaded sleeve, and bulldozer plates are fixed on the lower sides of the first threaded sleeve and the second threaded sleeve.

[0011] Preferably, the limiting guide rod is slidably connected to the trolley, and the trolley is provided with a limiting slide groove for moving the limiting guide rod.

[0012] Preferably, the first external thread and the second external thread have opposite rotation directions.

[0013] Preferably, an operating handle is fixed on the trolley, and a plurality of rollers are rotatably connected to the outer side of the trolley.

[0014] The beneficial effects of the present invention are as follows: when the seedling transplanting device for agricultural planting is used, a person first places the seedlings to be transplanted into a plurality of seedling storage mechanisms, then pushes the cart into the field, drives the third gear to rotate through the second motor, drives the first gear and the puncher to rotate through the third gear, drives the second gear to rotate through the first gear, thereby causing the plurality of punchers to rotate simultaneously, then drives the lifting plate to move through the electric telescopic rod, drives the puncher to move through the lifting plate, causes the puncher to punch holes in the soil, and the soil discharged during the punching will accumulate around the hole, then, the person pushes the cart again to move a seedling storage mechanism above the planting hole, and when the indicator rod points to the planting hole, it indicates that the seedling storage tube has been aligned with the planting hole. Align, then, drive the lead screw to rotate through the first motor, drive the threaded block to move through the rotation of the lead screw, drive the baffle plate to move through the movement of the threaded block, so that the baffle plate is removed from the bottom of the seedling storage tube, so that the seedlings in the seedling storage tube fall into the planting hole, and then push the cart to drive the automatic covering mechanism to move to the planting hole, drive the transmission shaft to rotate through the third motor, drive the bidirectional screw to rotate through the rotation of the transmission shaft, drive the first threaded sleeve and the second threaded sleeve to approach each other through the rotation of the bidirectional screw, and drive the bulldozer plate to approach each other through the first threaded sleeve and the second threaded sleeve, so that the bulldozer plate pushes the soil around the planting hole into the planting hole to bury the roots and stems of the seedlings, thereby realizing automatic transplanting of the seedlings, saving manpower, and having higher work efficiency. In summary, the present invention automatically performs drilling, planting and covering, saving manpower, and having higher work efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 The three-dimensional structure of the present invention is shown in FIG. Figure 1 .

[0016] Figure 2 The three-dimensional structure of the present invention is shown in FIG. Figure 2 .

[0017] Figure 3 For the present invention Figure 2 Partial view at point A in the middle.

[0018] Figure 4 It is a partial structural diagram of the present invention. Figure 1 .

[0019] Figure 5 It is a partial structural diagram of the present invention. Figure 2 .

[0020] Figure 6 For the present invention Figure 5 Schematic diagram of the open feeding state.

[0021] Figure 7 It is a partial structural diagram of the present invention. Figure 3 .

[0022] Figure 8 It is a partial structural diagram of the present invention. Figure 4 .

[0023] Fig. 9 It is a partial structural diagram of the present invention. Figure 5 .

[0024] Fig.10 For the present invention Fig. 9 Partial view at point B in the middle.

[0025] Legend:

[0026] 1. Trolley; 101. Limiting slide; 2. Seedling storage mechanism; 201. Support frame; 202. Seedling storage cylinder; 203. Indicator rod; 3. Auxiliary unloading mechanism; 301. First motor; 302. Lead screw; 303. Thread block; 304. Baffle plate; 305. Slider; 306. Linear slide; 4. Automatic punching mechanism; 401. Electric telescopic rod; 402. Lifting plate; 403. Punch; 404. First Gear; 405, second gear; 406, support shaft; 407, second motor; 408, third gear; 5, mobile power supply; 6, automatic soil covering mechanism; 601, third motor; 602, transmission shaft; 603, bidirectional screw; 604, first external thread; 605, second external thread; 606, first threaded sleeve; 607, second threaded sleeve; 608, limit guide rod; 609, bulldozer; 7, roller; 8, operating handle. DETAILED DESCRIPTION

[0027] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0028] Specific examples are given below.

[0029] See also Figures 1 to 10In an embodiment of the present invention, a seedling transplanting device for agricultural planting includes a trolley 1, a seedling storage mechanism 2, an auxiliary unloading mechanism 3, an automatic punching mechanism 4 and an automatic soil covering mechanism 6. An operating handle 8 is fixed on the trolley 1. A plurality of rollers 7 are rotatably connected to the outer side of the trolley 1. The arrangement of the rollers 7 and the operating handle 8 facilitates people to move the trolley 1. A plurality of seedling storage mechanisms 2 are fixedly installed on the trolley 1. The seedling storage mechanism 2 is used to store seedlings to be transplanted. An auxiliary unloading mechanism 3 is installed on the trolley 1. The auxiliary unloading mechanism 3 is in contact with the bottom of the seedling storage mechanism 2. The bottom of the seedling storage mechanism 2 can be opened for unloading through the auxiliary unloading mechanism 3. An automatic punching mechanism 4 is installed at the lower front side of the trolley 1, and an automatic soil covering mechanism 6 is installed at the lower rear side of the trolley 1. When in use, a person first places the seedlings to be transplanted into multiple seedling storage mechanisms 2, then pushes the cart 1 into the field, and then uses the automatic punching mechanism 4 to punch planting holes in the field (the soil discharged during punching will accumulate around the planting holes, and the subsequent automatic soil covering mechanism 6 can push it). Then, the person pushes the cart 1 to move a seedling storage mechanism 2 above the planting hole, and then opens the bottom of the seedling storage mechanism 2 through the auxiliary feeding mechanism 3, so that the seedlings in the seedling storage mechanism 2 fall into the planting holes, and then pushes the cart 1 to drive the automatic soil covering mechanism 6 to move to the planting holes, and the automatic soil covering mechanism 6 pushes the soil at the edge of the planting hole into the planting hole to cover the roots of the seedlings, thereby realizing automatic transplanting of the seedlings, saving manpower, and improving work efficiency.

[0030] The seedling storage mechanism 2 includes: a support frame 201, a seedling storage tube 202 and an indicator rod 203. The support frame 201 is fixedly installed on the trolley 1. A plurality of seedling storage tubes 202 are fixed on the support frame 201. The bottom of the seedling storage tube 202 is in an open state. The plurality of seedling storage tubes 202 are evenly distributed in a row on the support frame 201. A plurality of seedlings are stored by the plurality of seedling storage tubes 202. An indicator rod 203 is fixed to the bottom of the support frame 201. The indicator rod 203 extends to just below the seedling storage tube 202 at the rightmost end of the support frame 201. When the indicator rod 203 points to the planting hole, it indicates that the seedling storage tube 202 has been aligned with the planting hole, so that the seedlings in the seedling storage tube 202 can accurately fall into the planting hole.

[0031] The auxiliary unloading mechanism 3 includes: a first motor 301, a lead screw 302, a threaded block 303, a baffle plate 304, a slider 305 and a linear slide rail 306. The first motor 301 is fixedly mounted on the trolley 1, the lead screw 302 is rotatably connected to the trolley 1, the output shaft of the first motor 301 is fixed to the lead screw 302, a threaded block 303 is mounted on the lead screw 302, one side of the threaded block 303 is fixed to the baffle plate 304, and the baffle plate 304 is attached to the bottom of the seedling storage tube 202. A slider 305 is fixedly installed on the side of the baffle plate 304, and the slider 305 is slidably installed on the linear slide rail 306, and the linear slide rail 306 is fixedly installed on the trolley 1. When in use, the first motor 301 drives the screw 302 to rotate, and the rotation of the screw 302 drives the threaded block 303 to move, and the movement of the threaded block 303 drives the baffle plate 304 to move, so that the baffle plate 304 is moved away from the bottom of the seedling storage tube 202, so that the seedlings in the seedling storage tube 202 can be discharged and fall.

[0032] The automatic punching mechanism 4 includes: an electric telescopic rod 401, a lifting plate 402, a puncher 403, a first gear 404, a second gear 405, a support shaft 406, a second motor 407 and a third gear 408. The number of the electric telescopic rods 401 is two, and the electric telescopic rods 401 are fixedly installed on the lower side of the trolley 1. The telescopic end of the electric telescopic rod 401 is fixed to the lifting plate 402. A plurality of punchers 403 are rotatably connected to the lifting plate 402. The plurality of punchers 403 are evenly distributed in a row on the lifting plate 402. A first gear 404 is fixedly installed on the upper end of each puncher 403. A second gear 405 is installed between every two adjacent first gears 404. The second gear 405 is connected to the lifting plate 402 through the support shaft. 406 is rotatably connected with the lifting plate 402, a second motor 407 is fixedly mounted on the lifting plate 402, a third gear 408 is fixedly mounted on the output shaft of the second motor 407, the third gear 408 is meshed with a first gear 404, when in use, the third gear 408 is driven to rotate by the second motor 407, the first gear 404 and the punch 403 are driven to rotate by the third gear 408, the second gear 405 is driven to rotate by the first gear 404, so that a plurality of punches 403 are rotated at the same time, and then the lifting plate 402 is driven to move by the electric telescopic rod 401, and the punch 403 is driven to move by the lifting plate 402, so that the punch 403 punches the soil, and the soil discharged during the punching will accumulate around the hole.

[0033] The distance between two adjacent punchers 403 is the same as the distance between two adjacent seedling storage tubes 202 .

[0034] The automatic soil covering mechanism 6 includes: a third motor 601, a transmission shaft 602, a bidirectional screw 603, a first external thread 604, a second external thread 605, a first threaded sleeve 606, a second threaded sleeve 607, a limit guide rod 608 and a bulldozer 609. The third motor 601 is fixedly installed at the bottom of the trolley 1, and the transmission shaft 602 is rotatably connected to the bottom of the trolley 1. The output shaft of the third motor 601 is fixed to the transmission shaft 602, and a plurality of bidirectional screws are fixedly installed on the transmission shaft 602. The right half of the bidirectional screw 603 is provided with a first external thread 604, and a first thread sleeve 606 matching therewith is installed on the outer side of the first external thread 604. The left half of the bidirectional screw 603 is provided with a second external thread 605, and a second thread sleeve 607 matching therewith is installed on the outer side of the second external thread 605. The upper sides of the first thread sleeve 606 and the second thread sleeve 607 are fixed with a limiting guide rod 608 inserted into the trolley 1. The limiting guide rod 608 and the trolley 1 are fixed to each other. The cart 1 is slidably connected, and a limiting slide groove 101 for moving a limiting guide rod 608 is provided on the cart 1. The movement of the first threaded sleeve 606 and the second threaded sleeve 607 is limited by the limiting guide rod 608 so that they cannot rotate but can only move in a straight line. A bulldozer 609 is fixed on the lower side of the first threaded sleeve 606 and the second threaded sleeve 607. The rotation directions of the first external thread 604 and the second external thread 605 are opposite, so that when the bidirectional screw 603 rotates, the movement directions of the first threaded sleeve 606 and the second threaded sleeve 607 are opposite. When in use, the transmission shaft 602 is driven to rotate by the third motor 601, and the bidirectional screw 603 is driven to rotate by the rotation of the transmission shaft 602. The first threaded sleeve 606 and the second threaded sleeve 607 are driven to approach each other by the rotation of the bidirectional screw 603, and the bulldozer 609 is driven to approach each other by the first threaded sleeve 606 and the second threaded sleeve 607, so that the bulldozer 609 pushes the soil around the planting hole into the planting hole to bury the rhizome of the seedling.

[0035] A mobile power source 5 is fixedly installed on the trolley 1, and the mobile power source 5 supplies power to various electrical devices through wires (the wires are not drawn in the figure). In addition, the first motor 301, the electric telescopic rod 401, the second motor 407 and the third motor 601 are all purchased existing technology products and are controlled by a control switch included when purchased (not drawn in the figure).

[0036] Working principle: When using the seedling transplanting device for agricultural planting, a person first places the seedlings to be transplanted into multiple seedling storage mechanisms 2, and then pushes the cart 1 into the field, and drives the third gear 408 to rotate through the second motor 407, drives the first gear 404 and the puncher 403 to rotate through the third gear 408, and drives the second gear 405 to rotate through the first gear 404, so that multiple punchers 403 rotate at the same time, and then drives the lifting plate 402 to move through the electric telescopic rod 401, and drives the puncher 403 to move through the lifting plate 402, so that the puncher 403 punches holes in the soil, and the soil discharged during the punching will accumulate around the hole, and then, the person pushes the cart 1 to move a seedling storage mechanism 2 above the planting hole, and when the indicator rod 203 points to the planting hole, it means that the seedling storage tube 202 has been aligned with the planting hole, and then, A motor 301 drives the lead screw 302 to rotate, and the threaded block 303 is moved by the rotation of the lead screw 302, and the baffle plate 304 is moved by the movement of the threaded block 303, so that the baffle plate 304 is removed from the bottom of the seedling storage tube 202, so that the seedlings in the seedling storage tube 202 fall into the planting hole, and then the trolley 1 is pushed to drive the automatic soil covering mechanism 6 to move to the planting hole, and the transmission shaft 602 is driven to rotate by the third motor 601, and the bidirectional screw 603 is driven to rotate by the rotation of the transmission shaft 602, and the first threaded sleeve 606 and the second threaded sleeve 607 are driven to approach each other by the rotation of the bidirectional screw 603, and the bulldozer 609 is driven to approach each other by the first threaded sleeve 606 and the second threaded sleeve 607, so that the bulldozer 609 pushes the soil around the planting hole into the planting hole to bury the roots and stems of the seedlings, thereby realizing automatic transplanting of the seedlings, saving manpower, and improving work efficiency.

[0037] The above description is only a preferred specific implementation manner of the present invention, but the protection scope of the present invention is not limited thereto. Any technician familiar with the technical field can make equivalent replacements or changes according to the technical scheme and inventive concept of the present invention within the technical scope disclosed by the present invention, which should be covered by the protection scope of the present invention.

Claims

1. A seedling transplanting device for agricultural planting, characterized in that: The invention comprises a trolley (1), a seedling storage mechanism (2), an auxiliary material unloading mechanism (3), an automatic punching mechanism (4) and an automatic soil covering mechanism (6), wherein a plurality of seedling storage mechanisms (2) are fixedly mounted on the trolley (1), the seedling storage mechanism (2) is used to store seedlings to be transplanted, the trolley (1) is mounted with an auxiliary material unloading mechanism (3), the auxiliary material unloading mechanism (3) is fitted with the bottom of the seedling storage mechanism (2), the automatic punching mechanism (4) is mounted at the lower front side of the trolley (1), the automatic soil covering mechanism (6) is mounted at the lower rear side of the trolley (1), and the seedling storage mechanism (2) is fixedly mounted with an auxiliary material unloading mechanism (3) and the seedling storage mechanism (2) is used to store seedlings to be transplanted, the auxiliary material unloading mechanism (3) is mounted on the trolley (1), the auxiliary material unloading mechanism (3) is fitted with the bottom of the seedling storage mechanism (2), the automatic punching mechanism (4) is mounted at the lower front side of the trolley (1), the automatic soil covering mechanism (6) is mounted at the lower rear side of the trolley (1), and the seedling storage mechanism (2) is fixedly mounted with an auxiliary material unloading mechanism (3) ... The mechanism (2) comprises: a support frame (201), a seedling storage tube (202) and an indicator rod (203); the support frame (201) is fixedly mounted on the trolley (1); a plurality of seedling storage tubes (202) are fixed on the support frame (201); the bottom of the seedling storage tube (202) is in an open state; the plurality of seedling storage tubes (202) are evenly distributed in a row on the support frame (201); an indicator rod (203) is fixed at the bottom of the support frame (201); the indicator rod (203) extends to the right below the seedling storage tube (202) at the rightmost end of the support frame (201).

2. The seedling transplanting device for agricultural planting according to claim 1, characterized in that: The auxiliary unloading mechanism (3) comprises: a first motor (301), a lead screw (302), a threaded block (303), a material baffle plate (304), a slider (305) and a linear slide rail (306); the first motor (301) is fixedly mounted on the trolley (1); the lead screw (302) is rotatably connected to the trolley (1); the output shaft of the first motor (301) is fixed to the lead screw (302); a threaded block (303) is mounted on the lead screw (302); one side of the threaded block (303) is fixed to the material baffle plate (304); a slider (305) is fixedly mounted on the side of the material baffle plate (304); the slider (305) is slidably mounted on the linear slide rail (306); and the linear slide rail (306) is fixedly mounted on the trolley (1).

3. The seedling transplanting device for agricultural planting according to claim 2, characterized in that: The material blocking plate (304) is attached to the bottom of the seedling storage tube (202).

4. The seedling transplanting device for agricultural planting according to claim 1, characterized in that: The automatic punching mechanism (4) comprises: an electric telescopic rod (401), a lifting plate (402), a puncher (403), a first gear (404), a second gear (405), a support shaft (406), a second motor (407) and a third gear (408), wherein the number of the electric telescopic rods (401) is two, the electric telescopic rods (401) are fixedly mounted on the lower side of the trolley (1), the telescopic end of the electric telescopic rod (401) is fixed to the lifting plate (402), and a plurality of punchers (403) are rotatably connected to the lifting plate (402), and the plurality of punchers (403) are The holes (403) are evenly distributed in a row on the lifting plate (402); a first gear (404) is fixedly mounted on the upper end of each of the punchers (403); a second gear (405) is mounted between every two adjacent first gears (404); the second gear (405) is rotatably connected to the lifting plate (402) via a support shaft (406); a second motor (407) is fixedly mounted on the lifting plate (402); a third gear (408) is fixedly mounted on the output shaft of the second motor (407); and the third gear (408) is meshed with a first gear (404).

5. The seedling transplanting device for agricultural planting according to claim 4, characterized in that: The distance between two adjacent punchers (403) is the same as the distance between two adjacent seedling storage tubes (202).

6. The seedling transplanting device for agricultural planting according to claim 1, characterized in that: The automatic soil covering mechanism (6) comprises: a third motor (601), a transmission shaft (602), a bidirectional screw (603), a first external thread (604), a second external thread (605), a first threaded sleeve (606), a second threaded sleeve (607), a limiting guide rod (608) and a bulldozer (609), wherein the third motor (601) is fixedly mounted on the bottom of the trolley (1), the transmission shaft (602) is rotatably connected to the bottom of the trolley (1), the output shaft of the third motor (601) is fixed to the transmission shaft (602), a plurality of bidirectional screws (603) are fixedly mounted on the transmission shaft (602), and the The right half of the bidirectional screw (603) is provided with a first external thread (604), and a first threaded sleeve (606) matching therewith is installed on the outer side of the first external thread (604); the left half of the bidirectional screw (603) is provided with a second external thread (605), and a second threaded sleeve (607) matching therewith is installed on the outer side of the second external thread (605); the upper sides of the first threaded sleeve (606) and the second threaded sleeve (607) are fixed with a limiting guide rod (608) inserted into the trolley (1); the lower sides of the first threaded sleeve (606) and the second threaded sleeve (607) are fixed with a bulldozer plate (609).

7. The seedling transplanting device for agricultural planting according to claim 6, characterized in that: The limiting guide rod (608) is slidably connected to the trolley (1), and the trolley (1) is provided with a limiting sliding groove (101) for moving the limiting guide rod (608).

8. The seedling transplanting device for agricultural planting according to claim 6, characterized in that: The first external thread (604) and the second external thread (605) have opposite rotation directions.

9. The seedling transplanting device for agricultural planting according to claim 1, characterized in that: An operating handle (8) is fixed on the trolley (1), and a plurality of rollers (7) are rotatably connected to the outer side of the trolley (1).

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