Forest tree seedling raising irrigation device and irrigation method

Abstract

The invention relates to the technical field of irrigation equipment, and particularly discloses a forest seedling-raising irrigation device and an irrigation method.The irrigation device comprises a base, and a groove is formed in the surface of the base; the connecting assembly comprises a fixing plate, the fixing plate is fixedly connected with the groove, the two ends of the fixing plate are rotationally connected with chain plates, the chain plates comprise at least N first plates and N second plates, the first plates are rotationally connected with the second plates, and the first plates and the second plates are provided with protruding blocks making contact with the groove; the irrigation assembly comprises a support which corresponds to the first plate and the second plate and is fixedly connected with the first plate and the second plate, a sleeve is rotationally connected to the support, an insertion rod is arranged in the sleeve, and water outlet holes are formed in the surface of the insertion rod; according to the device, the seedlings are irrigated by directly inserting the inserting rods into the soil, so that water can enter the soil without loss, water resources are effectively utilized, and the water can enter the soil at the roots of the seedlings more accurately.

Description

Technical Field

[0001] This invention relates to the field of irrigation equipment technology, and in particular to an irrigation device and method for forest seedling cultivation. Background Technology

[0002] In the modern forestry production system, seedling cultivation is the cornerstone of sustainable forestry resource development, and its importance is self-evident. Irrigation, as a core link in ensuring the healthy growth of seedlings, is directly related to the survival rate, growth status, and quality of seedlings, and thus has a profound impact on the construction and maintenance of the forestry ecological environment.

[0003] Most existing irrigation devices use a spraying method, which involves spraying water in the form of a mist onto the seedlings, allowing the water droplets to fall freely into the soil. However, this irrigation method causes a large amount of water to evaporate directly into the air, reducing the amount of water that actually enters the soil. At the same time, some of the sprayed water droplets are carried away by the leaves of the seedlings, further reducing the amount of water that enters the soil. Therefore, existing irrigation devices not only waste water resources but also reduce the amount of water that actually enters the soil. Summary of the Invention

[0004] The main objective of this invention is to provide a forest seedling irrigation device and irrigation method, which aims to solve existing technical problems.

[0005] To achieve the above objectives, the present invention provides a forest seedling irrigation device, comprising: The base has grooves on its surface; A connecting assembly includes a fixed plate, which is fixedly connected to a groove, and chain plates are rotatably connected to both ends of the fixed plate. The chain plates include at least N first plates and N second plates, where N is an integer ≥1. The first plates and the second plates are rotatably connected, and the first plates and the second plates are provided with protrusions that contact the groove. An irrigation assembly includes a bracket that is correspondingly and fixedly connected to the first plate and the second plate. A sleeve is rotatably connected to the bracket. A rod is provided inside the sleeve. The surface of the rod has a water outlet hole, and the rod is movably connected to the sleeve.

[0006] Furthermore, a connecting groove is provided at the end of the first plate, and an opening communicating with the connecting groove is provided on the surface of the first plate, and a movable slider is provided in the opening; The end of the second plate is rotatably inserted with a rotating shaft, and the end of the second plate extends into the connecting groove and is rotatably connected to the slider through the rotating shaft; The first plate is provided with a first linear mechanism, and the end of the first linear mechanism is slidably connected to the second plate.

[0007] Furthermore, the slider is provided with an arc-shaped groove, and the rotating shaft surface is provided with a limiting block. The limiting block is elastically connected to the rotating shaft by a spring, and the limiting block slides in cooperation with the arc-shaped groove.

[0008] Furthermore, the first plate or the second plate located at both ends is controlled to move by a second linear mechanism, which is disposed on the base.

[0009] Furthermore, the sleeve is provided with a guide cavity and a sealing cavity, and the guide cavity and the sealing cavity are separated by a partition block with an opening; The inner wall of the guide cavity is provided with a spiral, and the end of the insertion rod is provided with a rotating block. The rotating block is embedded with a ball that extends into the spiral groove. The sealing cavity is filled with liquid, and the liquid moves between the guide cavity and the sealing cavity by a propulsion mechanism. When the liquid enters the guide cavity from the sealing cavity, it pushes the rotating block to move out of the sleeve in a rotating state.

[0010] Furthermore, the surface of the insertion rod is provided with a baffle covering the water outlet, and the insertion rod is provided with a connecting rod connected to the baffle; The insert rod is provided with a water guiding cavity, the connecting rod is inserted into one end of the water guiding cavity, and an elastic element is sleeved on the connecting rod; The water outlet can be opened by driving the connecting rod to move the baffle.

[0011] Furthermore, the other end of the water guiding cavity extends to the surface of the rotating block, and the sleeve is provided with a water conveying cavity, one end of which extends into the guide cavity, and the other end is connected to the water supply pipe; When the rotating block moves along the guide cavity until the ball reaches the end of the spiral groove, the water guiding cavity below the rotating block communicates with the water conveying cavity.

[0012] Furthermore, the base includes a fixed seat and a movable seat. The fixed seat is provided with an arc-shaped rail, and the movable seat is slidably connected to the arc-shaped rail. The movable seat is provided with telescopic rods at both ends, and the telescopic rods are controlled to rotate by a motor installed on the fixed seat. The connecting component and the irrigation component are provided on the movable seat.

[0013] Furthermore, the base is provided with a movable component at its bottom, which is detachably connected to the support frame. The support frame includes at least two interlocking support plates, and fixed rods are provided at both ends of the support frame.

[0014] A method for irrigating forest seedlings, using the forest seedling irrigation device described above, includes the following steps: Move the base to the irrigation site and align the irrigation assembly with the roots of the seedlings; The insertion rod is driven into the soil around the roots of the seedling, and water is injected into the soil through the water outlet. Depending on the size of the seedling roots to be irrigated, the chain plate can be adjusted to a straight, arc, or circular structure to adaptively inject water into the soil around the seedling roots.

[0015] The beneficial effects of this invention are reflected in: (1) The present invention irrigates seedlings by inserting the stick directly into the soil, so that water can enter the soil without loss. This not only makes effective use of water resources, but also allows water to enter the soil around the roots of the seedlings more accurately.

[0016] (2) By setting the chain plate, the shape of the chain plate can be adjusted according to the size of the rootstock of the seedling to be irrigated, making irrigation more precise and efficient, and improving the applicability of the irrigation device.

[0017] (3) The present invention inserts the rod into the soil in a rotating manner, which makes the rod enter the soil more smoothly and efficiently, and can deal with hard soil. At the same time, during the insertion process, the movable baffle can prevent the water outlet from being blocked.

[0018] (4) The present invention enables the irrigation component to move back and forth from both sides of the seedling to perform insertion irrigation operation through the cooperation of the movable seat and the arc-shaped rail, thereby improving the irrigation efficiency. Attached Figure Description

[0019] Figure 1 This is a schematic diagram of the structure of the forest seedling irrigation device of the present invention; Figure 2 This is a schematic diagram showing the structural connection of the base, connecting components, and irrigation components of the present invention; Figure 3 This is a schematic diagram of the connection structure of the connecting component and the irrigation component of the present invention; Figure 4 This is a schematic diagram of the connection structure of the chain plate and irrigation component of the present invention; Figure 5 This is an exploded view of the chain plate structure of the present invention; Figure 6 This is a top cross-sectional view of the connection between the slider and the rotating shaft structure of the present invention; Figure 7 This is a schematic cross-sectional view of the insertion rod structure of the present invention; Figure 8 For the present invention Figure 7 Enlarged schematic diagram of the structure at point A in the middle; Figure 9 This is an exploded view of the baffle and insert rod structure of the present invention; Figure 10 This is a schematic diagram showing the connection between the water guide cavity, the water outlet, and the connecting rod of the present invention; Figure 11 This is a schematic diagram of the spiral groove structure of the present invention; Figure 12 This is a schematic diagram of the chain plate of the present invention in an arc shape.

[0020] Explanation of reference numerals in the attached figures: 100. Base; 100a. Groove; 101. Fixed seat; 102. Movable seat; 103. Arc-shaped rail; 104. Telescopic rod; 200. Connecting assembly; 210. Fixed plate; 220. Chain plate; 221. First plate; 221a. Connecting groove; 221b. Opening; 222. Second plate; 223. Protrusion; 224. Slider; 224a. Arc-shaped groove; 225. Rotating shaft; 2251. Limiting block; 2252. Spring; 226. First linear mechanism; 227. Second linear mechanism Linear mechanism; 300, Irrigation component; 301, Support; 302, Sleeve; 3021, Guide cavity; 3021a, Spiral groove; 3022, Sealing cavity; 3023, Water delivery cavity; 303, Insert rod; 3031, Water outlet; 3032, Water guide cavity; 304, Divider block; 305, Rotating block; 306, Ball bearing; 307, Baffle; 308, Connecting rod; 309, Elastic element; 310, Propulsion mechanism; 400, Moving component; 401, Support frame; 402, Fixed rod. Detailed Implementation

[0021] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only a part of the embodiments of the present invention, and not all of them. Unless otherwise specified, the embodiments and features in the embodiments of this application can be combined with each other. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0022] Please see Figure 1-12 This embodiment proposes a forest seedling irrigation device, including: a base 100, the surface of which is provided with a groove 100a.

[0023] The connecting assembly 200 includes a fixing plate 210, which is fixedly connected to the groove 100a. Chain plates 220 are rotatably connected to both ends of the fixing plate 210. Each chain plate 220 includes at least N first plates 221 and N second plates 222, where N is an integer ≥ 1. The first plates 221 and second plates 222 are rotatably connected. The first plates 221 and second plates 222 are provided with protrusions 223 that contact the groove 100a. Specifically, when the chain plate 220 is linear, the protrusions 223 contact the groove 100a, providing a certain supporting force. When the chain plate 220 is arc-shaped or circular, the protrusions 223 are separated from the groove 100a. In other words, the protrusions 223 are provided to provide additional supporting force to the chain plate 220 when it is connected to the base 100.

[0024] The irrigation assembly 300 includes a bracket 301 that is correspondingly and fixedly connected to the first plate 221 and the second plate 222. A sleeve 302 is rotatably connected to the bracket 301. An insert rod 303 is provided inside the sleeve 302. The surface of the insert rod 303 has water outlet holes 3031, and the insert rod 303 is movably connected to the sleeve 302. Specifically, the water outlet holes 3031 are evenly distributed around the surface of the insert rod 303.

[0025] In this embodiment, the base 100 is placed in the irrigation area for the seedlings. The angle of the insertion rod 303 is adjusted to drive the insertion rod 303 into the soil around the roots of the seedlings. Water is injected into the soil through the water outlet 3031 to achieve irrigation. The insertion irrigation allows water to enter the soil without loss, which not only makes effective use of water resources, but also allows water to enter the soil around the roots of the seedlings more accurately.

[0026] Specifically, the chain plate 220 can be adjusted to different shapes as needed. When the seedlings that need irrigation are dense and have small roots, the chain plate 220 is set in a straight line. At this time, the irrigation component 300 can be used to irrigate the seedlings once on each side. When the seedlings that need irrigation are sparse and have large roots, the chain plate 220 is adjusted to be arc-shaped or circular, so that the irrigation component 300 is set around the seedlings, thereby ensuring the irrigation effect. At this time, the first plate 221 and the second plate 222 are both detached from the base 100, and the fixing plate 210 remains fixed to the base 100.

[0027] Preferably, the bracket 301 is equipped with an adjusting motor for adjusting the angle at which the insertion rod 303 is inserted into the soil.

[0028] In this embodiment, a connecting groove 221a is provided at the end of the first plate 221. Specifically, one end of the connecting groove 221a is an open structure. An opening 221b communicating with the connecting groove 221a is provided on the surface of the first plate 221. A movable slider 224 is provided in the opening 221b. Specifically, the opening 221b is provided on both the upper and lower surfaces of the first plate 221.

[0029] The end of the second plate 222 is rotatably connected to a rotating shaft 225, and the end of the second plate 222 extends into the connecting groove 221a and is rotatably connected to the slider 224 through the rotating shaft 225.

[0030] The first plate 221 is provided with a first linear mechanism 226, and the end of the first linear mechanism 226 is slidably connected to the second plate 222. Specifically, the first linear mechanism 226 can be an electric actuator.

[0031] In this embodiment, when the spacing between the seedlings to be irrigated is different, the first linear mechanism 226 pushes the second plate 222 to move, adjusting the position of the second plate 222. This causes the rotating shaft 225 to drive the slider 224 to move within the opening 221b, so that the second plate 222 moves outward along the connecting groove 221a. This achieves the purpose of adjusting the overall length of the chain plate 220, thereby coping with irrigation operations with different seedling spacings. This not only meets the efficient irrigation operations of multiple irrigation components 300, but also adapts to different seedling spacings, improving the applicability of the irrigation device.

[0032] In this embodiment, the slider 224 has an arc-shaped groove 224a, and the rotating shaft 225 has a limiting block 2251 on its surface. The limiting block 2251 is elastically connected to the rotating shaft 225 through a spring 2252, and the limiting block 2251 slides in cooperation with the arc-shaped groove 224a. Specifically, the limiting block 2251 is a spherical block or an arc-shaped block.

[0033] In this embodiment, when it is necessary to adjust the chain plate 220 to be arc-shaped or circular, the first plate 221 or the second plate 222 located at both ends are controlled to rotate, causing the entire chain plate 220 to bend. During the rotation, the adjacent first plate 221 and the second plate 222 rotate successively. Specifically, the limiting block 2251 on the pivot 225 at the end of the second plate 222 slides in the arc-shaped groove 224a. When the limiting block 2251 slides to the end of the arc-shaped groove 224a, the first plate 221 and the second plate 222 stop rotating and lock until the chain plate 220 is adjusted to a suitable shape, making irrigation more precise and efficient, and improving the applicability of the irrigation device.

[0034] In this embodiment, the first plate 221 or the second plate 222 located at both ends are controlled to move by a second linear mechanism 227, which is disposed on the base 100. Specifically, the second linear mechanism 227 may be an electric telescopic rod.

[0035] In this embodiment, when it is necessary to adjust the chain plate 220 to an arc or circular shape, the second linear mechanism 227 connected to the first plate 221 or the second plate 222 at both ends can be controlled to work. The second linear mechanism 227 is controlled to extend, causing the first plate 221 and the second plate 222 to detach from the base 100 and rotate, so that the chain plate 220 gradually bends, thereby adjusting the chain plate 220 to the specified shape. Then, in conjunction with the irrigation component 300, the seedlings are irrigated more thoroughly, reducing the intensity of manual labor and improving irrigation efficiency.

[0036] In this embodiment, the sleeve 302 is provided with a guide cavity 3021 and a sealing cavity 3022, and the guide cavity 3021 and the sealing cavity 3022 are separated by a partition block 304 with an opening.

[0037] The inner wall of the guide cavity 3021 is provided with a spiral groove 3021a, and the end of the insertion rod 303 is provided with a rotating block 305. A ball bearing 306 is embedded in the rotating block 305 and extends into the spiral groove 3021a. The sealing cavity 3022 is filled with liquid, which is controlled to move between the guide cavity 3021 and the sealing cavity 3022 by the propulsion mechanism 310. Specifically, the liquid can be water or oil. When the liquid enters the guide cavity 3021 from the sealing cavity 3022, it pushes the rotating block 305 to move out of the sleeve 302 while rotating. Specifically, the propulsion mechanism 310 can be an electric actuator with a piston block at its end. Since the guide cavity 3021 and the sealing cavity 3022 are sealed and filled with liquid, the piston block can drive the rotating block 305 to move synchronously when it moves.

[0038] In this embodiment, when the irrigation component 300 is moved to the designated position, the control propulsion mechanism 310 pushes the liquid from the sealed cavity 3022 to the guide cavity 3021. The liquid pushes the rotating block 305 to move. During this process, the ball bearing 306 moves along the spiral groove 3021a, so that the rotating block 305 rotates while driving the insertion rod 303 to be inserted into the soil. This makes it easier and more efficient for the insertion rod 303 to enter the soil, and can cope with hard soil to achieve effective irrigation.

[0039] In this embodiment, the surface of the insertion rod 303 is provided with a baffle 307 covering the water outlet 3031, and the insertion rod 303 is provided with a connecting rod 308 connected to the baffle 307. Specifically, the baffle 307 is set according to the number of water outlets 3031, and the baffle 307 and the insertion rod 303 are slidably engaged.

[0040] The insert rod 303 has a water guiding cavity 3032 inside, and the connecting rod 308 is inserted into one end of the water guiding cavity 3032. The connecting rod 308 is fitted with an elastic element 309; specifically, the elastic element 309 is a return spring.

[0041] The connecting rod 308 drives the baffle 307 to move, which can open the water outlet 3031.

[0042] Specifically, the water guiding cavity 3032 and the water outlet 3031 are in a connected state. The water guiding cavity 3032 has two paths, one of which is connected to the water outlet 3031, and the other is connected to the connecting rod 308.

[0043] In this embodiment, water is injected into the water guiding cavity 3032. The water flows into one path of the water guiding cavity 3032, pushing the connecting rod 308 to move. Simultaneously, the baffle 307 moves along the surface of the insertion rod 303. When the baffle 307 moves to expose the water outlet 3031, the water flows into the other path of the water guiding cavity 3032 and can flow out through the water outlet 3031. This ensures that the water outlet 3031 is closed during the insertion of the insertion rod 303 into the soil. When the insertion rod 303 is inserted to a sufficient depth, the baffle 307 is moved to open the water outlet 3031, thus avoiding the problem of blockage of the water outlet 3031 during insertion.

[0044] In this embodiment, the other end of the water guiding cavity 3032 extends to the surface of the rotating block 305, and the sleeve 302 is provided with a water conveying cavity 3023. One end of the water conveying cavity 3023 extends into the guide cavity 3021, and the other end is connected to the water supply pipe. Specifically, the water supply pipe is connected to the water tank, and the water tank is provided with a water pump.

[0045] When the rotating block 305 moves along the guide cavity 3021 until the ball 306 moves to the end of the spiral groove 3021a, the water guiding cavity 3032 below the rotating block 305 is connected to the water conveying cavity 3023.

[0046] In this embodiment, the rotating block 305 drives the insertion rod 303 into the soil. During this process, the rotating block 305 rotates synchronously with the cooperation of the ball bearing 306 and the spiral groove 3021a. When the ball bearing 306 moves to the end of the spiral groove 3021a, the water guiding cavity 3032 and the water conveying cavity 3023 are connected. Water is delivered into the water guiding cavity 3032 through the water conveying cavity 3023. The water flow pushes the connecting rod 308 to move the baffle 307, causing the water outlet 3031 to open, thus realizing the irrigation operation. That is, the insertion rod 303 is driven to rotate and be inserted into the soil. During this process, the water outlet 3031 is in a closed state. When the insertion rod 303 is inserted into the position, the water outlet 3031 opens synchronously, improving the irrigation efficiency.

[0047] In this embodiment, the base 100 includes a fixed base 101 and a movable base 102. The fixed base 101 is provided with an arc-shaped rail 103. Specifically, there are two arc-shaped rails 103, distributed at both ends of the fixed base 101, and one end of the arc-shaped rail 103 is connected to the fixed base 101 through a support rod. The movable base 102 is slidably connected to the arc-shaped rail 103, and both ends of the movable base 102 are provided with telescopic rods 104. Specifically, the telescopic rods 104 are electric telescopic rods, and the ends of the telescopic rods 104 are hinged to the movable base 102. The telescopic rods 104 are controlled to rotate by a motor installed on the fixed base 101. The connecting component 200 and the irrigation component 300 are provided on the movable base 102.

[0048] In this embodiment, after the irrigation component 300 completes the irrigation operation on one side of the seedling, the motor drives the telescopic rod 104 to rotate, causing the movable seat 102 to slide along the arc-shaped rail 103 to the suspended end, so that the irrigation component 300 can move to the other side of the seedling to continue the irrigation operation. This not only makes the irrigation more thorough, but also improves the irrigation efficiency.

[0049] In this embodiment, a movable component 400 is provided at the bottom of the base 100, specifically, the movable component 400 is a roller.

[0050] The movable component 400 is detachably connected to the support frame 401. Specifically, the support frame 401 is provided with wheel grooves; the support frame 401 includes at least two interlocking support plates, and fixing rods 402 are provided at both ends of the support frame 401. Specifically, adjacent support plates can be fixed together by bolts.

[0051] In this embodiment, when the seedlings requiring irrigation are dense and have small roots, the irrigation component 300 is difficult to move among the seedlings. In this case, before irrigation, the support frame 401 is fixed to the irrigation path by the fixing rod 402, and then the base 100 is placed on the support frame 401, so that the base 100 moves along the support frame 401 to cooperate with the irrigation component 300 for irrigation. When the seedlings requiring irrigation are sparse and have large roots, the irrigation component 300 can easily move among the seedlings. In this case, the base 100 is placed directly on the irrigation path, and the moving component 400 directly drives the irrigation component 300 to move, achieving efficient irrigation.

[0052] This invention also provides a method for irrigating forest seedlings, specifically including the following steps: Move the base 100 to the irrigation site and align the irrigation component 300 with the roots of the seedlings; When the seedlings requiring irrigation are dense and have small roots, the support frame 401 is first fixed to the irrigation path by the fixing rod 402 before irrigation. Then, the base 100 is placed on the support frame 401, so that the base 100 moves along the support frame 401. The control mechanism 310 pushes the liquid from the sealed cavity 3022 to the guide cavity 3021. The liquid pushes the rotating block 305 to move. During the process, the ball bearing 306 moves along the spiral groove 3021a, so that the rotating block 305 drives the insertion rod 303 to insert into the soil. During the soil-planting process, the rotating block 305 drives the insertion rod 303 to insert into the soil. The rotating block 305 rotates synchronously during the movement with the cooperation of the ball bearing 306 and the spiral groove 3021a. When the ball bearing 306 moves to the end of the spiral groove 3021a, the water guiding chamber 3032 and the water conveying chamber 3023 are connected. Water is delivered into the water guiding chamber 3032 through the water conveying chamber 3023. The water flow pushes the connecting rod 308 to move the baffle 307, so that the water outlet 3031 opens and the irrigation operation is realized. When the seedlings requiring irrigation are loose and have large roots, the base 100 is placed directly on the irrigation path. The moving component 400 directly drives the irrigation component 300 to move, adjusting the chain plate 220 to be arc-shaped or circular. The first plate 221 or the second plate 222 at both ends is controlled to rotate, causing the entire chain plate 220 to bend. During the rotation, the adjacent first plate 221 and the second plate 222 rotate successively. Specifically, the limiting block 2251 on the pivot 225 at the end of the second plate 222 slides in the arc-shaped groove 224a. When the limiting block 2251 slides to the end of the arc-shaped groove 224a, the first plate 221 and the second plate 222 stop rotating and lock until the chain plate 220 is adjusted to a suitable shape. Then, the same operation is used to control the insertion rod 303 to be inserted into the soil for irrigation.

[0053] It should be noted that if the embodiments of the present invention involve directional indicators such as (up, down, left, right, front, back, etc.), the directional indicators are only used to explain the relative positional relationship and movement of the components in a certain specific posture (as shown in the figure). If the specific posture changes, the directional indicators will also change accordingly.

[0054] Furthermore, if the embodiments of this invention involve descriptions such as "first" or "second," these descriptions are for descriptive purposes only and should not be construed as indicating or implying their relative importance or implicitly specifying the number of technical features indicated. Therefore, a feature defined with "first" or "second" may explicitly or implicitly include at least one of those features. Additionally, the meaning of "and / or" throughout the text includes three parallel solutions; for example, "A and / or B" includes solution A, solution B, or a solution where both A and B are satisfied. Furthermore, "multiple" refers to two or more. Moreover, the technical solutions of the various embodiments can be combined with each other, but this must be based on the ability of those skilled in the art to implement them. When the combination of technical solutions is contradictory or impossible to implement, such a combination of technical solutions should be considered non-existent.

[0055] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present invention should be included within the protection scope of the present invention.

Claims

1. A forest seedling irrigation device, characterized in that, include: The base (100) has a groove (100a) on its surface; The connecting assembly (200) includes a fixing plate (210) fixedly connected to the groove (100a), and chain plates (220) rotatably connected to both ends of the fixing plate (210). The chain plates (220) include at least N first plates (221) and N second plates (222), where N is an integer ≥1. The first plates (221) and the second plates (222) are rotatably connected. The first plates (221) and the second plates (222) are provided with protrusions (223) that contact the groove (100a). The irrigation assembly (300) includes a bracket (301) that is correspondingly and fixedly connected to the first plate (221) and the second plate (222). A sleeve (302) is rotatably connected to the bracket (301). A rod (303) is provided inside the sleeve (302). The surface of the rod (303) has a water outlet hole (3031). The rod (303) is movably connected to the sleeve (302).

2. The forest seedling irrigation device as described in claim 1, characterized in that: The first plate (221) has a connecting groove (221a) at its end, and the surface of the first plate (221) has an opening (221b) communicating with the connecting groove (221a), and a movable slider (224) is provided in the opening (221b). The end of the second plate (222) is rotatably inserted with a rotating shaft (225), and the end of the second plate (222) extends into the connecting groove (221a) and is rotatably connected to the slider (224) through the rotating shaft (225); The first plate (221) is provided with a first linear mechanism (226), and the end of the first linear mechanism (226) is slidably connected to the second plate (222).

3. The forest seedling irrigation device as described in claim 2, characterized in that: The slider (224) is provided with an arc groove (224a), and the rotating shaft (225) is provided with a limiting block (2251). The limiting block (2251) is elastically connected to the rotating shaft (225) through a spring (2252), and the limiting block (2251) slides in cooperation with the arc groove (224a).

4. The forest seedling irrigation device as described in claim 3, characterized in that: The first plate (221) or the second plate (222) located at both ends are controlled to move by a second linear mechanism (227), which is disposed on the base (100).

5. The forest seedling irrigation device as described in claim 1, characterized in that: The sleeve (302) is provided with a guide cavity (3021) and a sealing cavity (3022), and the guide cavity (3021) and the sealing cavity (3022) are separated by a partition block (304) with an opening; The inner wall of the guide cavity (3021) is provided with a spiral groove (3021a), and the end of the insertion rod (303) is provided with a rotating block (305). The rotating block (305) is embedded with a ball (306) that extends into the spiral groove (3021a). The sealing cavity (3022) is filled with liquid. The liquid is controlled by the propulsion mechanism (310) to move between the guide cavity (3021) and the sealing cavity (3022). When the liquid enters the guide cavity (3021) from the sealing cavity (3022), it pushes the rotating block (305) to move out of the sleeve (302) in a rotating state.

6. The forest seedling irrigation device as described in claim 5, characterized in that: The surface of the insertion rod (303) is provided with a baffle (307) covering the water outlet (3031), and the insertion rod (303) is provided with a connecting rod (308) connected to the baffle (307). The insert (303) is provided with a water guiding cavity (3032), the connecting rod (308) is inserted into one end of the water guiding cavity (3032), and an elastic element (309) is sleeved on the connecting rod (308). The water outlet (3031) can be opened by driving the connecting rod (308) to move the baffle (307).

7. The forest seedling irrigation device as described in claim 6, characterized in that: The other end of the water guiding cavity (3032) extends to the surface of the rotating block (305). The sleeve (302) is provided with a water conveying cavity (3023). One end of the water conveying cavity (3023) extends into the guide cavity (3021), and the other end is connected to the water supply pipe. When the rotating block (305) moves along the guide cavity (3021) until the ball (306) moves to the end of the spiral groove (3021a), the water guiding cavity (3032) below the rotating block (305) is connected to the water conveying cavity (3023).

8. The forest seedling irrigation device as described in claim 1, characterized in that: The base (100) includes a fixed base (101) and a movable base (102). The fixed base (101) is provided with an arc-shaped rail (103). The movable base (102) is slidably connected to the arc-shaped rail (103). The movable base (102) is provided with telescopic rods (104) at both ends. The telescopic rods (104) are controlled to rotate by a motor installed on the fixed base (101). The connecting component (200) and the irrigation component (300) are provided on the movable base (102).

9. The forest seedling irrigation device as described in claim 1, characterized in that: The base (100) has a movable component (400) at its bottom. The movable component (400) is detachably connected to the support frame (401). The support frame (401) includes at least two interlocking support plates, and the support frame (401) has fixed rods (402) at both ends.

10. A method for irrigating forest seedlings, using a forest seedling irrigation device as described in any one of claims 1-9, characterized in that: Includes the following steps, Move the base (100) to the irrigation site and align the irrigation assembly (300) with the roots of the seedlings; The insertion rod (303) is driven to extend into the soil around the roots of the seedling, and water is injected into the soil through the water outlet (3031); Depending on the size of the seedling roots to be irrigated, the chain plate (220) is adjusted to be in a straight, arc or circular shape to provide adaptive watering to the soil around the seedling roots.

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