Seedling digging device for sapling transplanting

Abstract

The utility model belongs to the technical field of forestry, and particularly relates to a sapling digging device for sapling transplanting, which comprises a cart, a sapling digging mechanism, a placing plate and a transmission mechanism, the sapling digging mechanism is arranged, a first cylinder is controlled to drive a mounting frame to move downwards so as to drive a clamping jaw to simultaneously move downwards and be inserted into soil, and the sapling digging device is convenient to use. A second air cylinder is controlled to drive a lifting plate to slowly move upwards so that a clamping jaw can be driven to clamp soil near a sapling to be transplanted, an electric sliding rail is operated to be matched with an electric sliding block so that a seedling digging mechanism can be driven to move left and right, and a placing plate and a transmission mechanism are arranged; the top plate makes contact with the inclined face of the inclined plate and drives the inclined plate to move backwards, the inclined plate moves to drive the containing plate to move forwards till the containing groove of the containing plate moves to the position under the clamping jaw, the first air cylinder is controlled to drive the clamping jaw to move downwards, the saplings can be placed in the containing groove, and the multiple saplings can be conveniently driven to move at the same time when the cart is moved.

Description

Technical Field

[0001] This utility model belongs to the field of forestry technology, specifically relating to a seedling digging device for transplanting tree seedlings. Background Technology

[0002] Forestry refers to the production sector that protects the ecological environment and maintains ecological balance, cultivates and protects forests to obtain timber and other forest products, and utilizes the natural characteristics of trees to play a protective role. In the human and biosphere, forestry engages in the cultivation, protection, and utilization of forest resources through advanced science and technology and management methods to fully realize the multiple benefits of forests. In forestry, seedlings cultivated by sowing or vegetative propagation methods have a high seedling density, and each seedling occupies a small nutrient space. To cultivate larger seedlings, transplanting is necessary. Transplanting can expand the nutrient space for seedling growth, such as light space, ventilation space, branch and trunk growth space, and space for root growth, water and nutrient absorption.

[0003] During the transplanting process, workers manually dig the soil and take out the seedlings to be transplanted, then place them in the designated planting pits. When the seedlings are far from the planting pits, the workers have to move them back and forth, which consumes a lot of physical strength. The process is cumbersome and the transplanting efficiency is low. Utility Model Content

[0004] The purpose of this invention is to provide a seedling digging device for transplanting seedlings, which solves the problem in the existing technology that in the process of transplanting seedlings, workers have to manually dig the soil and take out the seedlings to be transplanted, and then place the seedlings in the planting pits at designated locations. When the seedlings are far from the planting pits, the workers have to move them back and forth, which consumes a lot of physical strength, the process is cumbersome, and the transplanting efficiency is low.

[0005] The specific technical solution adopted in this utility model is as follows:

[0006] A seedling digging device for transplanting seedlings, comprising:

[0007] A trolley, wherein an electric slide rail and an electric slider adapted to the electric slide rail are installed on the top front of the trolley;

[0008] A seedling digging mechanism is located on the front of an electric slider. The seedling digging mechanism, together with an electric slide rail and an electric slider, is used to dig out multiple seedlings.

[0009] A placement board is provided at the bottom of the trolley and is used to place the seedlings dug up by the seedling digging mechanism.

[0010] The transmission mechanism is located inside the trolley and is used to move the placement plate forward to below the seedling after the seedling digging mechanism digs out the seedling.

[0011] In a preferred scheme, the seedling digging mechanism comprises a fixed plate, a first air cylinder, a clamping jaw, a mounting frame, a second air cylinder, a lifting plate, a T-shaped slider and a rotating rod, the electric slider is provided with the fixed plate in the front, the first air cylinder is fixedly installed on the bottom surface of the fixed plate, the clamping jaw is symmetrically arranged below the first air cylinder, the mounting frame is fixedly arranged at the tail end of the output end of the first air cylinder, the second air cylinder is fixedly installed on the top surface of the mounting frame, the lifting plate is fixedly arranged at the tail end of the output end of the second air cylinder, the T-shaped sliders are symmetrically hinged to the left and right ends of the lifting plate, and the rotating rod is fixedly arranged on the top surface of the clamping jaw.

[0012] In a preferred scheme, the side of the rotating rod close to the lifting plate is provided with a T-shaped sliding groove matched with the T-shaped slider, the T-shaped slider is slidably connected with the rotating rod through the T-shaped sliding groove, the bottom surface of the mounting frame is provided with a horizontal groove, one side of the rotating rod is rotatably connected with the inner wall of the horizontal groove, and the fixed shaft is fixedly arranged between the front and rear sides of the horizontal groove, penetrates the rotating rod and is rotatably connected with the rotating rod.

[0013] In a preferred scheme, the transmission mechanism comprises a top plate, an inclined plate, a sliding plate, a first connecting rod, a vertical rod, a second connecting rod and a second reset spring, the output end of the first air cylinder is provided with the top plate, a plurality of inclined plates are equidistantly arranged above the top plate, the inclined plate is provided with an inclined surface on the bottom surface, the sliding plate is fixedly arranged on the back of the inclined plate, the first connecting rod is hinged to the back of the sliding plate, the other end of the first connecting rod is hinged to the vertical rod, the bottom surface of the vertical rod is hinged to the second connecting rod, the other end of the second connecting rod is hingedly connected with the placing plate, and the second reset spring is fixedly arranged on the back of the sliding plate.

[0014] In a preferred scheme, the output end of the first air cylinder penetrates the top plate and is slidably connected with the top plate, the trolley is provided with a first sliding groove and a second sliding groove matched with the sliding plate and the placing plate respectively in the front, the sliding plate and the placing plate are slidably connected with the trolley through the first sliding groove and the second sliding groove respectively, the trolley is provided with a vertical groove matched with the vertical rod inside, the vertical rod is slidably connected with the trolley through the vertical groove, and the other end of the second reset spring away from the sliding plate is fixedly connected with the inner wall of the first sliding groove.

[0015] In a preferred scheme, the top surface of the placing plate is provided with a placing groove, the left and right sides of the placing plate are provided with symmetric sliding strips and a third sliding groove matched with the sliding strips, the sliding strip is composed of a fixedly-connected hemispherical clamping block and a plug rod, the second sliding groove is communicated with a hemispherical clamping groove matched with the hemispherical clamping block on the inner walls of the left and right sides, the sliding strip extends into the placing plate through the third sliding groove and is slidably connected with the placing plate, and the first reset spring is fixedly arranged between the sliding strip and the inner wall of the third sliding groove.

[0016] The utility model achieves the following technical effects:

[0017] The utility model discloses a setting up the mechanism of digging seedling, control second cylinder drives the lifting plate to move down can drive T type sliding block to slide in the inside T type sliding groove, to drive the jaw to rotate along the direction of mutual separation, control first cylinder drives the installation frame to move down can drive the jaw to move down and insert inside soil simultaneously, control second cylinder drives the lifting plate to move up slowly can drive the jaw to be close to each other and the soil near the tree seedling of being about to transplant is taken in the clamp, control first cylinder drives the jaw to move up can dig out the tree seedling, and the operation electric slide rail cooperates electric sliding block can drive the mechanism of digging seedling to move left and right, thereby convenient for digging out the tree seedling of multiple positions and transplanting, improve transplanting efficiency.

[0018] The utility model discloses a setting up the mechanism of digging seedling, control second cylinder drives the lifting plate to move down can drive T type sliding block to slide in the inside T type sliding groove, to drive the jaw to rotate along the direction of mutual separation, control first cylinder drives the installation frame to move down can drive the jaw to move down and insert inside soil simultaneously, control second cylinder drives the lifting plate to move up slowly can drive the jaw to be close to each other and the soil near the tree seedling of being about to transplant is taken in the clamp, control first cylinder drives the jaw to move up can dig out the tree seedling, and the operation electric slide rail cooperates electric sliding block can drive the mechanism of digging seedling to move left and right, thereby convenient for digging out the tree seedling of multiple positions and transplanting, improve transplanting efficiency. BRIEF DESCRIPTION OF DRAWINGS

[0019] Figure 1 It is the main structure schematic diagram of the utility model;

[0020] Figure 2 It is the main structure schematic diagram of the utility model; Figure 1 It is the local amplification structure schematic diagram of A place in the utility model;

[0021] Figure 3 It is the transmission mechanism section structure schematic diagram of the utility model;

[0022] Figure 4 It is the placing plate section structure schematic diagram of the utility model.

[0023] In the drawings, the component list that each sign represents is as follows:

[0024] 100, trolley;

[0025] 200, electric slide rail;201, electric sliding block;

[0026] 300, seedling digging mechanism; 301, fixed plate; 302, first air cylinder; 303, clamping jaw; 304, mounting frame; 305, second air cylinder; 306, lifting plate; 307, T-shaped sliding block; 308, rotating rod;

[0027] 400, placing plate; 401, placing groove; 402, sliding bar; 403, first reset spring;

[0028] 500, transmission mechanism; 501, top plate; 502, inclined plate; 503, sliding plate; 504, first connecting rod; 505, vertical rod; 506, second connecting rod; 507, second reset spring. DETAILED DESCRIPTION

[0029] In order to make the above objectives, features and advantages of the present application more apparent and comprehensible, the specific embodiments of the present application will be described in detail below with reference to the accompanying drawings.

[0030] In the following description, a large number of specific details are set forth in order to facilitate a thorough understanding of the present application, but the present application can also be implemented in other ways different from those described herein, and those skilled in the art can make similar generalizations without departing from the spirit of the present application, so the present application is not limited to the specific embodiments disclosed below.

[0031] Secondly, the "one embodiment" or "embodiment" referred to herein means that the specific features, structures or characteristics can be included in at least one implementation of the present application. "In a preferred embodiment" appearing in different places in the specification does not mean the same embodiment, nor is it an embodiment that is independent or alternative to other embodiments.

[0032] Thirdly, the present application is described in detail in conjunction with the schematic diagram, and in the detailed description of the embodiments of the present application, the cross-sectional view of the device structure is partially enlarged without the general proportion for the convenience of description, and the schematic diagram is only an example, which should not limit the scope of protection of the present application. In addition, the three-dimensional spatial dimensions including length, width and depth should be included in actual manufacture.

[0033] Please refer to the accompanying Figure 1 As shown in the accompanying drawings, the present application provides a seedling transplanting seedling digging device, which comprises: a cart 100, a seedling digging mechanism 300, a placing plate 400 and a transmission mechanism 500, the top surface of the cart 100 is fixedly installed with a handrail and a control panel, the bottom four corners of the cart 100 are fixedly installed with self-locking universal wheels, the front top of the cart 100 is installed with an electric sliding rail 200 and an electric sliding block 201 matched with the electric sliding rail 200, and the control panel is electrically connected with the electric sliding rail 200 and the electric sliding block 201 through wires.

[0034] In a preferred embodiment, please refer to Figures 1 to 3The electric sliding block 201 is provided with a seedling digging mechanism 300 in the front, and the seedling digging mechanism 300 is composed of a fixed plate 301, a first air cylinder 302, a clamping jaw 303, a mounting frame 304, a second air cylinder 305, a lifting plate 306, a T-shaped sliding block 307 and a rotating rod 308. The electric sliding block 201 is provided with the fixed plate 301 in the front, and the bottom surface of the fixed plate 301 is fixedly provided with the first air cylinder 302. The first air cylinder 302 is provided with the symmetrical clamping jaw 303 below. The output end of the first air cylinder 302 is fixedly provided with the mounting frame 304. The inside top surface of the mounting frame 304 is fixedly provided with the second air cylinder 305. The output end of the second air cylinder 305 is fixedly provided with the lifting plate 306. The lifting plate 306 is hingedly provided with the symmetrical T-shaped sliding block 307 at the left and right ends. The clamping jaw 303 is fixedly provided with the rotating rod 308 on the top surface.

[0035] In the embodiment, the control panel is electrically connected with the first air cylinder 302 and the second air cylinder 305 through wires. The side of the rotating rod 308 close to the lifting plate 306 is provided with a T-shaped sliding groove matched with the T-shaped sliding block 307. The T-shaped sliding block 307 is slidably connected with the rotating rod 308 through the T-shaped sliding groove. The inside bottom surface of the mounting frame 304 is provided with a horizontal groove. One side of the rotating rod 308 is rotatably connected with the inner wall of the horizontal groove. The fixed shaft is fixedly arranged between the front and rear sides of the horizontal groove. The fixed shaft penetrates through the rotating rod 308 and is rotatably connected with the rotating rod 308. The horizontal groove facilitates the up and down rotation of the rotating rod 308.

[0036] In the embodiment, when the seedling needs to be dug, the electric sliding rail 200 drives the seedling digging mechanism 300 to move above the tree seedling to be transplanted. The second air cylinder 305 drives the lifting plate 306 to move downward, which can drive the T-shaped sliding block 307 to slide in the T-shaped sliding groove, thereby driving the rotating rod 308 to rotate along the central axis of the fixed shaft. The rotating rod 308 drives the clamping jaw 303 to rotate in the direction away from each other. The first air cylinder 302 drives the mounting frame 304 to move downward, which can drive the clamping jaw 303 to move downward and insert into the soil. The second air cylinder 305 drives the lifting plate 306 to slowly move upward, which can drive the clamping jaw 303 to approach each other and clamp the soil near the tree seedling to be transplanted. The first air cylinder 302 drives the clamping jaw 303 to move upward, which can dig out the tree seedling. The electric sliding rail 200 drives the electric sliding block 201 to move left and right, which can facilitate the digging and transplanting of the tree seedlings in multiple positions, thereby improving the transplanting efficiency.

[0037] In a preferred embodiment, please refer to Figures 1 to 4The bottom of the trolley 100 is provided with a plurality of placement plates 400 equidistantly, the top surface of the placement plate 400 is provided with a placement groove 401, the left and right sides of the placement plate 400 are provided with symmetric slide strips 402 and third slide grooves matched with the slide strips 402, the slide strip 402 is composed of a semispherical clamping block and a plug rod fixedly connected, the slide strip 402 extends into the inside of the placement plate 400 through the third slide groove and is in sliding connection with the placement plate 400, one side of the slide strip 402 is fixedly provided with a first reset spring 403, after the seedling digging mechanism 300 digs out and moves upward, the placement plate 400 moves forward to the position below the seedling, so that the seedling can be placed in the placement groove 401 by the seedling digging mechanism 300.

[0038] In a preferred embodiment, referring to Figures 1 to 4 The inside of the trolley 100 is provided with a transmission mechanism 500, the transmission mechanism 500 is composed of a top plate 501, an inclined plate 502, a sliding plate 503, a first connecting rod 504, a vertical rod 505, a second connecting rod 506 and a second reset spring 507, the outside of the output end of the first air cylinder 302 is provided with the top plate 501 penetratingly, a plurality of inclined plates 502 are provided equidistantly above the top plate 501, the positions of the placement plates 400 and the inclined plates 502 correspond to each other one by one, the bottom surface of the inclined plate 502 is provided with an inclined surface, the back surface of the inclined plate 502 is fixedly provided with the sliding plate 503, the back surface of the sliding plate 503 is hinged with the first connecting rod 504, the other end of the first connecting rod 504 is hinged with the vertical rod 505, the bottom surface of the vertical rod 505 is hinged with the second connecting rod 506, the other end of the second connecting rod 506 is hingedly connected with the placement plate 400, and the back surface of the sliding plate 503 is fixedly provided with symmetric second reset springs 507.

[0039] In the implementation manner, the output end of the first cylinder 302 penetrates through the top plate 501 and is in sliding connection with the top plate 501, the first sliding groove and the second sliding groove suitable for the sliding plate 503 and the placing plate 400 are respectively arranged on the front face of the trolley 100, the sliding plate 503 and the placing plate 400 are in sliding connection with the trolley 100 through the first sliding groove and the second sliding groove respectively, the semispherical clamping groove suitable for the semispherical clamping block is communicated with the inner walls on the left and right sides of the second sliding groove, the first reset spring 403 is fixedly connected with the inner wall of the third sliding groove at the end away from the sliding strip 402, the vertical slot suitable for the vertical rod 505 is arranged in the trolley 100, the vertical rod 505 is in sliding connection with the trolley 100 through the vertical slot, the vertical slot is communicated with the first sliding groove and the second sliding groove respectively, the first inclined slot and the second inclined slot for facilitating the rotation of the first connecting rod 504 and the second connecting rod 506 are arranged in the trolley 100, the second reset spring 507 is fixedly connected with the inner wall of the first sliding groove at the end away from the sliding plate 503, when the semispherical clamping block of the sliding strip 402 is clamped in the semispherical clamping groove, the second reset spring 507 is compressed, the deformation amount of the first reset spring 403 caused by the pushing of the sliding plate 503 by the second reset spring 507 is smaller than the deformation amount of the first reset spring 403 when the sliding strip 402 completely enters the third sliding groove, so that the position of the placing plate 400 relative to the trolley 100 can be limited, and the stability of the placing plate 400 is improved.

[0040] In the embodiment, when the clamping jaw 303 digs out the seedling to be transplanted and moves to above the placing plate 400, the top plate 501 contacts the inclined surface of the inclined plate 502 and drives the inclined plate 502 to move backward, the movement of the inclined plate 502 drives the sliding plate 503 to move backward, the movement of the sliding plate 503 drives the first connecting rod 504 to rotate, the second reset spring 507 is compressed, the rotation of the first connecting rod 504 drives the vertical rod 505 to move downward, the movement of the vertical rod 505 drives the second connecting rod 506 to rotate, the rotation of the second connecting rod 506 drives the placing plate 400 to move forward, until the placing groove 401 of the placing plate 400 moves to directly below the clamping jaw 303, at this time, the semispherical clamping block of the sliding strip 402 is just aligned to the semispherical clamping groove, the first reset spring 403 pushes the sliding strip 402 to be clamped in the semispherical clamping groove, so that the position of the placing plate 400 relative to the trolley 100 is limited, the first cylinder 302 is controlled to drive the clamping jaw 303 to move downward to the inside of the placing groove 401 and open, so that the seedling can be placed in the placing groove 401, the plurality of seedlings are driven to move simultaneously when the trolley 100 is moved, and the transplanting efficiency is further improved.

[0041] The working principle of the utility model is as follows:

[0042] When the device is in use, the movable trolley 100 drives the inclined plate 502 to move above the seedlings to be transplanted, the spacing of the inclined plate 502 is the same as the spacing of the seedlings, the control electric sliding rail 200 cooperates with the electric sliding block 201 to drive the seedling digging mechanism 300 to move above one of the seedlings to be transplanted, the control second cylinder 305 drives the lifting plate 306 to move downward, which can drive the T-shaped sliding block 307 to slide in the T-shaped sliding groove, thereby driving the rotating rod 308 to rotate along the central axis of the fixed shaft at the same time, the rotating rod 308 drives the clamping jaw 303 to rotate in the direction away from each other, the control first cylinder 302 drives the mounting frame 304 to move downward, which can drive the clamping jaw 303 to move downward at the same time and insert into the soil, the control second cylinder 305 drives the lifting plate 306 to slowly move upward, which can drive the clamping jaw 303 to approach each other and clamp the soil near the seedling to be transplanted, the control first cylinder 302 drives the clamping jaw 303 to move upward, which can dig out the seedling, when the clamping jaw 303 digs out the seedling to be transplanted and moves above the placing plate 400, the top plate 501 contacts the inclined surface of the inclined plate 502 and drives the inclined plate 502 to move backward, the movement of the inclined plate 502 drives the sliding plate 503 to move backward, the movement of the sliding plate 503 drives the first connecting rod 504 to rotate, the second reset spring 507 is compressed, the rotation of the first connecting rod 504 drives the vertical rod 505 to move downward, the movement of the vertical rod 505 drives the second connecting rod 506 to rotate, the rotation of the second connecting rod 506 drives the placing plate 400 to move forward, until the placing groove 401 of the placing plate 400 moves to the position directly below the clamping jaw 303, at this time, the hemispherical clamping block of the sliding strip 402 is just aligned to the hemispherical clamping groove, the first reset spring 403 pushes the sliding strip 402 to clamp into the hemispherical clamping groove, thereby limiting the position of the placing plate 400 relative to the movable trolley 100, the control first cylinder 302 drives the clamping jaw 303 to move downward into the placing groove 401 and open, which can place the seedling in the placing groove 401, after completing the placement of the seedling, the control fixed plate 301 and second cylinder 305 drives the clamping jaw 303 to move upward above the seedling and move left and right above the adjacent seedling to be transplanted, the mounting frame 304 drives the top plate 501 to move upward without contacting the inclined plate 502, avoiding the downward movement of the placing plate 400 to block the movement of the clamping jaw 303, repeating the above operation can sequentially dig out the adjacent seedlings to be transplanted and place them in the placing groove 401 of the placing plate 400, the movable trolley 100 can drive multiple seedlings to move to the planting hole at the same time for planting, the transplanting efficiency is high, when the transplanting of multiple seedlings is completed, the worker presses the placing plate 400, which can drive the sliding strip 402 to disengage from the hemispherical clamping groove and enter the third sliding groove, thereby cooperating with the second reset spring 507 to push the sliding plate 503 to move the placing plate 400 back to the original position.

[0043] The above only is the preferred embodiment of the utility model, it should be pointed out, for ordinary skilled person in the art, without departing from the principle of the utility model, can make a number of improvements and refinements, these improvements and refinements also should be considered the protection scope of the utility model.The structure, device and operating method not specifically described and explained in the utility model, are implemented according to conventional means in the art, unless specifically described and limited.

Claims

1. A seedling digging device for transplanting seedlings, characterized in that: include: A trolley (100) has an electric slide rail (200) and an electric slider (201) adapted to the electric slide rail (200) mounted on the top front of the trolley (100). A seedling digging mechanism (300) is provided on the front of an electric slider (201). The seedling digging mechanism (300) works in conjunction with an electric slide rail (200) and an electric slider (201) to dig out multiple seedlings. A placement plate (400) is provided at the bottom of the trolley (100) and is used to place the seedlings dug up by the seedling digging mechanism (300); The transmission mechanism (500) is located inside the trolley (100). The transmission mechanism (500) is used to drive the placement plate (400) to move forward to below the seedling after the seedling digging mechanism (300) digs out the seedling.

2. The seedling digging device for transplanting seedlings according to claim 1, characterized in that: The seedling digging mechanism (300) includes a fixed plate (301), a first cylinder (302), a gripper (303), a mounting frame (304), a second cylinder (305), a lifting plate (306), a T-shaped slider (307), and a rotating rod (308). The electric slider (201) is fixedly provided with a fixed plate (301) on its front side. The first cylinder (302) is fixedly installed on the bottom surface of the fixed plate (301). Symmetrical grippers (303) are provided below the first cylinder (302). The mounting frame (304) is fixedly provided at the output end of the first cylinder (302). The second cylinder (305) is fixedly installed on the top surface inside the mounting frame (304). The lifting plate (306) is fixedly provided at the output end of the second cylinder (305). Symmetrical T-shaped sliders (307) are hinged to the left and right ends of the lifting plate (306). The rotating rod (308) is fixedly provided on the top surface of the gripper (303).

3. The seedling digging device for transplanting seedlings according to claim 2, characterized in that: The rotating rod (308) is provided with a T-shaped groove on the side near the lifting plate (306) to accommodate the T-shaped slider (307). The T-shaped slider (307) is slidably connected to the rotating rod (308) through the T-shaped groove. A transverse groove is provided through the bottom surface of the mounting frame (304). One side of the rotating rod (308) is rotatably connected to the inner wall of the transverse groove. A fixed shaft is fixedly provided between the front and rear sides of the transverse groove. The fixed shaft passes through the rotating rod (308) and is rotatably connected to the rotating rod (308).

4. The seedling digging device for transplanting seedlings according to claim 3, characterized in that: The transmission mechanism (500) includes a top plate (501), an inclined plate (502), a sliding plate (503), a first connecting rod (504), a vertical rod (505), a second connecting rod (506), and a second return spring (507). The top plate (501) is provided through the outer side of the output end of the first cylinder (302). Multiple inclined plates (502) are provided at equal intervals above the top plate (501). The bottom surface of the inclined plate (502) is provided with an inclined surface. The sliding plate (503) is fixedly provided on the back of the inclined plate (502). The first connecting rod (504) is hinged to the back of the sliding plate (503). The other end of the first connecting rod (504) is hinged to the vertical rod (505). The bottom surface of the vertical rod (505) is hinged to the second connecting rod (506). The other end of the second connecting rod (506) is hinged to the placement plate (400). The second return spring (507) is fixedly provided on the back of the sliding plate (503).

5. A seedling digging device for transplanting seedlings according to claim 4, characterized in that: The output end of the first cylinder (302) passes through the top plate (501) and is slidably connected to the top plate (501). The front of the trolley (100) is provided with a first sliding groove and a second sliding groove that are adapted to the sliding plate (503) and the placement plate (400). The sliding plate (503) and the placement plate (400) are slidably connected to the trolley (100) through the first sliding groove and the second sliding groove, respectively. The inside of the trolley (100) is provided with a vertical groove that is adapted to the vertical rod (505). The vertical rod (505) is slidably connected to the trolley (100) through the vertical groove. The end of the second return spring (507) away from the sliding plate (503) is fixedly connected to the inner wall of the first sliding groove.

6. A seedling digging device for transplanting seedlings according to claim 5, characterized in that: The top surface of the placement plate (400) is provided with a placement groove (401). Symmetrical slide bars (402) and a third slide groove adapted to the slide bars (402) are provided on the left and right sides of the placement plate (400). The slide bars (402) are composed of a fixedly connected hemispherical block and a plug rod. The inner walls of the left and right sides of the second slide groove are connected to hemispherical slots adapted to the hemispherical blocks. The slide bars (402) extend into the interior of the placement plate (400) through the third slide groove and slide in a sliding connection with the placement plate (400). A first return spring (403) is fixedly provided between the slide bars (402) and the inner wall of the third slide groove.

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