A columnar plant cutting raising device

Abstract

The application discloses a kind of stand column type plant cutting seedling device, it is related to plant cultivation technical field;Including stand column type main body and multiple layer partition plate, each layer partition plate is equipped with annular seedling layer, annular seedling layer is made of multiple planting units;Planting unit includes seedling groove, planting cylinder, spiral guide cylinder, guide sliding block and planting cylinder, planting cylinder inner wall is equipped with spiral root guide groove, guide root system spiral growth;Spiral guide cylinder side wall is opened with spiral guide groove, and the rotation direction of root guide groove is opposite;Guide sliding block is slidably connected with guide groove, and is locked by locking knob;Planting cylinder is fixed on the upper portion of seedling groove;When transplanting, loosen locking knob, planting cylinder rotates and slides down along guide groove under the action of gravity, and is separated from planting cylinder, and plant is rotated out synchronously with root system.The application guides root system growth by root guide groove, realizes non-destructive transplanting by combining spiral separation structure, effectively improves seedling efficiency and transplanting survival rate, and simultaneously has the advantages of uniform illumination, precise irrigation and convenient operation.

Description

Technical Field

[0001] This invention relates to the field of plant cultivation technology, and in particular to a column-type plant cutting propagation device. Background Technology

[0002] Plant cutting propagation, as one of the core technologies for rapidly propagating superior varieties and maintaining the excellent traits of the parent plant in agriculture and horticulture, has advantages such as high propagation coefficient, simple operation, and short seedling cycle, and is widely used in seedling cultivation, vegetable planting, and flower cultivation. With the development of facility agriculture and vertical cultivation technology, columnar cultivation systems have been widely used because they can effectively improve the land utilization rate per unit area, and are particularly suitable for production links such as cutting propagation.

[0003] However, most existing seedling raising devices are single cylindrical structures, which make it easy for plant roots to become entangled and attached to the cultivation container. They need to be dug up manually during transplanting, and the roots are easily damaged when the plants are removed, affecting the subsequent growth and survival rate of the seedlings. Summary of the Invention

[0004] The purpose of this invention is to solve the problems mentioned in the background art by providing a column-type plant cutting propagation device.

[0005] To achieve the above objectives, the present invention adopts the following technical solution: A column-type plant cutting propagation device includes a column-type main body, wherein multiple partition plates are fixedly mounted at intervals along the axial direction of the column-type main body, and an annular seedling layer is provided on the upper surface of each partition plate. The annular seedling layer includes multiple planting units evenly distributed along the circumference of the partition plate, and each planting unit includes: Seedling troughs are fixedly installed on the partition plate; The planting tube is a cylindrical structure with an open top, and its inner wall has a spiral root guide groove that extends continuously from top to bottom along the circumference. The spiral guide cylinder is fixedly installed at the bottom of the seedling trough, and the spiral guide cylinder is coaxially sleeved on the lower outer side of the planting cylinder. The side wall of the spiral guide cylinder is provided with a spiral guide groove. The guide slider is fixedly installed on the bottom outer wall of the planting cylinder and corresponds to the position of the guide groove. The guide slider slides through the guide groove and can move along the guide groove trajectory. A locking knob is threaded on the guide slider. The locking knob is located on the outside of the spiral guide cylinder and is used to lock the relative position of the planting cylinder and the spiral guide cylinder. The planting tube is coaxially embedded in the upper inner side of the planting tube, and the planting tube is fixedly connected to the seedling trough through the connecting rod. When the locking knob is released, the planting tube rotates and slides down the spiral trajectory of the guide groove under its own gravity, while the planting tube remains fixed, causing the planting tube and the planting tube to separate relative to each other, and the plant and its roots growing along the root guide groove are rotated out synchronously.

[0006] As a further aspect of the present invention: the spiral parameters of the guide groove and the guide root groove are adapted to each other, and the spiral directions of the two are opposite.

[0007] As a further aspect of the present invention: the planting tube is a frustum-shaped cylindrical structure with an open top and an open bottom, and its diameter gradually decreases from top to bottom. The planting tube is coaxially installed at the upper opening of the planting tube, and the outer side wall of the planting tube is attached to the inner side wall of the planting tube to form a sliding fit. The height of the bottom end face of the planting tube is higher than the uppermost starting position of the root guide groove. The planting cylinder has ventilation holes on its side wall and water permeability holes on its bottom end face. Water-absorbing cotton strips are embedded in the water permeability holes, with one end of the water-absorbing cotton strips extending into the planting cylinder and the other end extending downward into the seedling trough.

[0008] As a further embodiment of the present invention: the partition plate is rotatably assembled onto the outer peripheral wall of the column-type main body; The lower surface of the partition plate is evenly provided with several lighting devices and several sprinkler heads along the circumference, and the lighting devices and sprinkler heads are set in the annular seedling layer below them. The upper surface of the partition plate is provided with an installation groove that matches the bottom of the seedling trough for each planting unit position, and the bottom of the seedling trough is fixedly embedded in the installation groove.

[0009] As a further aspect of the present invention: the column-type main body is a hollow columnar structure, with maintenance windows provided on its side walls, and a water pump and a main water supply pipe extending along the axial direction are fixedly installed inside. An annular water supply pipe is fixedly installed on the outer peripheral wall of the column-type main body at the height position of each layer of partition plate. The annular water supply pipe is connected to the main water supply pipe through a water supply hose. The sprinkler heads on each partition are connected to the corresponding ring-shaped water supply pipe via water supply hoses; Each seedling trough has a water inlet on the lower side wall, and a ring-shaped water supply pipe is connected to the corresponding water inlet of each seedling trough through a water supply hose. The main water supply pipeline is equipped with a total flow control valve, and each annular water supply pipe is equipped with a tiered flow control valve.

[0010] As a further aspect of the present invention: the planting tube is made of transparent hard plastic, and its outer wall is uniformly engraved with scale markings for observing the length of root growth along the axial direction.

[0011] As a further embodiment of the present invention: one end of the connecting rod is fixedly connected to the outer edge of the upper surface of the planting cylinder, and the other end is inserted and fixed to the seedling trough through an interference fit.

[0012] As a further aspect of the present invention: the seedling trough is equipped with a liquid level sensor and a drain hole, a filter screen is installed in the drain hole, and a return water pipe is provided inside the column-type main body, and the drain hole is connected to the return water pipe.

[0013] Compared with existing technologies, the advantages of this invention are: 1. This invention, by setting a spiral root guide groove on the inner wall of the planting cylinder, guides the roots of the cuttings to grow spirally downward along the root guide groove, effectively avoiding disorderly entanglement of the roots. When it is necessary to remove the seedling, simply loosen the locking knob, and the planting cylinder will rotate and slide down along the opposite spiral guide groove under the action of gravity, causing relative displacement with the fixed planting cylinder. This process utilizes the spiral structure to "spin out" the complete root system growing along the root guide groove. Even if some roots still adhere to the inner wall, the seedling removal method can still completely remove the root system, effectively avoiding root tearing and damage caused by traditional pulling methods.

[0014] 2. The design adopts a column-type main body combined with a multi-layered ring seedling layer, which greatly reduces the floor space and significantly increases the seedling density per unit space. Combined with lighting devices, it reduces shading between upper and lower layers of plants and ensures uniform light. The integrated main water supply pipe, ring water delivery pipe and layered flow control valves form a precise irrigation system, which reduces seedling costs. In addition, the use of transparent planting tubes with scale markings allows staff to intuitively and conveniently monitor root growth length and health status. Attached Figure Description

[0015] Figure 1 This is a schematic diagram of the overall structure of the present invention; Figure 2 This is a structural schematic diagram of the column-type main body, partition plate, and planting unit of the present invention; Figure 3 This is a schematic diagram of the structure of the column-type main body, the partition plate, and multiple seedling troughs of the present invention; Figure 4 This is a structural schematic diagram of the column-type main body, partition plate, and single seedling trough of the present invention; Figure 5 This is a schematic diagram of the structure of the annular seedling layer of the present invention; Figure 6 This is a schematic diagram of the structure of multiple seedling troughs of the present invention; Figure 7 This is a schematic diagram of the structure of the planting unit during planting according to the present invention; Figure 8 This is a schematic diagram of the planting unit of the present invention; Figure 9 This is a schematic diagram of the disassembled structure of the planting unit of the present invention; Figure 10 This is a schematic diagram of the planting cylinder and spiral guide cylinder of the present invention; Figure 11 This is a schematic diagram of the planting tube of the present invention.

[0016] In the diagram: 1. Column-type main body; 2. Divider plate; 3. Circular seedling layer; 4. Planting unit; 5. Seedling trough; 6. Planting tube; 7. Root guide groove; 8. Spiral guide tube; 9. Guide groove; 10. Guide slider; 11. Locking knob; 12. Planting tube; 13. Connecting rod; 15. Water permeable hole; 16. Water-absorbing cotton strip; 19. Installation groove; 20. Maintenance window; 23. Circular water supply pipe; 25. Water inlet; 29. ​​Drainage hole. Detailed Implementation

[0017] 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 some embodiments of the present invention, and not all embodiments. 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.

[0018] Reference Figures 1 to 5 A column-type plant cutting propagation device includes a column-type main body 1. The column-type main body 1 adopts a hollow column structure, which serves as the load-bearing foundation and functional integration carrier of the entire device. A maintenance window 20 is opened on its side wall to facilitate the inspection and maintenance of the internal equipment. A water pump and a main water supply pipe extending along the axis are fixedly installed inside the column-type main body 1. At the same time, a return water pipe is built in to construct a complete irrigation water circulation system.

[0019] The column-type main body 1 is fixedly equipped with multiple partition plates 2 at intervals along its axial direction. Each partition plate 2 has an annular seedling layer 3 on its upper surface. The annular seedling layer 3 includes multiple planting units 4. The outer peripheral wall of the column-type main body 1 is provided with multiple layers of annular water supply pipes 23 at intervals along its axial direction. Each layer of annular water supply pipes 23 is connected to the main water supply pipe through a water supply hose and is fixedly installed at the height position corresponding to each layer of partition plate 2 to achieve precise control of layered water supply. The main water supply pipe is equipped with a total flow control valve, and each annular water supply pipe 23 is equipped with a layered flow control valve. Both the total flow control valve and each layered flow control valve are preferably electric control valves and can be seamlessly connected to the central control system. The water supply can be independently adjusted according to the growth needs of seedlings at different levels. For example, according to the water requirements of different crop types and different growth cycles (such as the rooting period of cuttings, the seedling growth period, and the hardening period), a precise irrigation program and water volume can be preset to ensure irrigation accuracy and reduce water waste.

[0020] The partition plate 2 is connected to the outer wall of the column-type main body 1 by a rotating assembly method. People can manually and flexibly adjust the angle of the partition plate 2 to facilitate observation of the seedling status and seedling removal, avoiding the need for people to walk around in circles to observe and remove seedlings. Several lighting devices and sprinkler heads are evenly distributed along the circumference of the lower surface of the partition plate 2, and the lighting devices and sprinkler heads are set corresponding to the ring-shaped seedling layer 3 below. The lighting devices can supplement insufficient light and ensure uniform light for seedlings in each layer, while the sprinkler heads can achieve leaf watering and cooling, improving the stability of the seedling environment.

[0021] Reference Figures 5 to 11 The annular seedling layer 3 is composed of multiple planting units 4 evenly distributed around the partition plate 2, forming an annular cultivation structure, which greatly increases the seedling density per unit space and reduces the floor space occupied. Each planting unit 4 includes a seedling trough 5, a planting cylinder 6, a spiral guide cylinder 8, a guide slider 10, and a planting cylinder 12. The seedling trough 5 is fixedly installed on the partition plate 2. The upper surface of the partition plate 2 is evenly provided with mounting grooves 19 that are adapted to the bottom of the seedling trough 5. The bottom of the seedling trough 5 is connected to the mounting groove 19 by a fixed embedding method to ensure that the seedling trough 5 is installed firmly and to avoid displacement during cultivation. At the same time, the seedling trough 5 can be removed separately.

[0022] The seedling trough 5 has a water inlet 25 on its lower side wall, which is connected to a ring water pipe 23 at the corresponding height through a water supply hose to achieve directional water supply. The seedling trough 5 is equipped with a liquid level sensor and a drain hole 29. The drain hole 29 is fitted with a filter screen to prevent impurities from clogging the pipe. The drain hole 29 is connected to the return water pipe inside the column-type main body 1. The liquid level sensor monitors the water level in the seedling trough 5 in real time to avoid water accumulation that could lead to root rot. At the same time, the return water pipe can recycle excess water and save on seedling costs.

[0023] The planting tube 12 is coaxially embedded in the upper inner side of the planting tube 6. It is a frustum-shaped tube structure with an open top and an open bottom. The diameter gradually decreases from top to bottom. The outer wall is attached to the inner wall of the planting tube 6 to form a sliding fit. The bottom end face of the planting tube 12 is higher than the uppermost starting position of the root guide groove 7 to ensure that the roots can smoothly enter the root guide groove 7 for growth. The planting tube 12 can be set as a short tube of 1-3mm to facilitate the removal of the planting tube from the plant seedling later.

[0024] The planting cylinder 12 is fixedly connected to the seedling trough 5 via a connecting rod 13. One end of the connecting rod 13 is fixedly connected to the outer edge of the upper surface of the planting cylinder 12, and the other end is fixedly inserted into the seedling trough 5 through an interference fit, which ensures the stability of the planting cylinder 12 and facilitates disassembly and replacement.

[0025] The planting cylinder 6 has ventilation holes on its side wall, which can improve the aeration of the substrate and promote root respiration. The bottom end face has a water permeable hole 15, and a water-absorbing cotton strip 16 is embedded in the water permeable hole 15. One end of the water-absorbing cotton strip 16 extends into the inside of the planting cylinder 6, and the other end extends downward into the seedling trough 5, which can continuously provide a moist environment for the roots of the cuttings, while avoiding water accumulation in the substrate and optimizing the root growth conditions.

[0026] A guide slider 10 is fixedly installed on the bottom outer wall of the planting cylinder 6. The guide slider 10 corresponds to the guide groove 9 of the spiral guide cylinder 8 and slides through the guide groove 9 to form a sliding fit relationship, ensuring that the planting cylinder 6 can move smoothly along the spiral trajectory of the guide groove 9. A locking knob 11 is threaded on the guide slider 10. The locking knob 11 is located on the outside of the spiral guide cylinder 8. By tightening the locking knob 11, the relative position of the planting cylinder 6 and the spiral guide cylinder 8 can be locked to ensure the stability of the planting cylinder 6 during cultivation. When unlocked, the freedom of movement of the planting cylinder 6 can be released, and the planting cylinder 6 slides down the spiral along the guide groove 9 under the action of gravity.

[0027] The planting tube 6 is a cylindrical structure with an open top, made of transparent rigid plastic. Its outer wall is evenly engraved with scale markings along the axial direction, which makes it easy for staff to visually observe the root growth length and keep track of the seedling progress. The inner wall of the planting tube 6 is provided with a spiral root guide groove 7 that extends continuously from top to bottom along the circumference. This can guide the roots of the cuttings to grow downward in an orderly spiral along the root guide groove 7, thus avoiding the problem of disorderly root entanglement and climbing on the inner wall of the container from the root.

[0028] The spiral guide cylinder 8 is fixedly installed at the bottom of the seedling trough 5 and coaxially sleeved on the lower outer side of the planting cylinder 6. The two form a coaxial nested structure to ensure the stability of the movement trajectory of the planting cylinder 6. The side wall of the spiral guide cylinder 8 is provided with a spiral guide groove 9. The spiral parameters of the guide groove 9 are matched with the root guide groove 7 on the inner wall of the planting cylinder 6, and the two rotate in opposite directions, providing a structural basis for the subsequent non-destructive rotation of the roots.

[0029] Reference Figures 1 to 11 The working principle of this device is as follows: During cutting propagation, cuttings with substrate are inserted into the planting tube 12 and the planting tube 6. The water-absorbing cotton strip 16 draws water from the seedling trough 5 through capillary action to keep the substrate moist, and the ventilation holes ensure smooth root respiration. The root guide groove 7 guides the roots to grow downward along a spiral trajectory. The scale markings on the transparent planting tube 6 can monitor the root growth status in real time (cameras can be installed around the inner wall of the seedling trough 5 to intelligently monitor the root growth status through the monitoring system).

[0030] During irrigation, after the water pump is started, the water flows through the main water supply pipe and is distributed to the ring water supply pipes 23 of each layer. The water supply of each layer is adjusted by the layer flow control valve. A part of the water flows through the water supply hose to the sprinkler head to achieve leaf watering and cooling. Another part of the water flows through the inlet 25 into the seedling trough 5 to supply water for the substrate. Excess water is filtered through the drain hole 29 and recycled through the return water pipe. The liquid level sensor provides real-time feedback on the water level information to prevent water accumulation and root rot.

[0031] When the seedlings are ready for transplanting, the locking knob 11 is loosened to release the lock. The planting cylinder 6 rotates and slides down along the spiral trajectory of the guide groove 9 under its own gravity, while the planting cylinder 12 remains stationary under the fixing action of the connecting rod 13. The two separate relative to each other. Since the guide groove 9 and the root guide groove 7 rotate in opposite directions, the complete root system growing along the root guide groove 7 is simultaneously "spun out" during the rotation and sliding of the planting cylinder 6. Even if some roots are slightly attached, the spiral separation can avoid root tearing or damage, thereby greatly improving the survival rate of transplanted seedlings.

[0032] To further clarify, the aforementioned fixed connection should be interpreted broadly unless otherwise explicitly specified and limited. For example, it may be welding, gluing, or integral molding, or other conventional methods well known to those skilled in the art.

[0033] The steps involved in this application are as follows: S1: Check the smoothness of the water pump, main water supply pipe, and return water pipe inside the column-type main body 1; test the working status of the main control flow valve, stratified flow control valve, liquid level sensor, lighting device, and sprinkler head; rotate the partition plate 2 to confirm its smooth rotation; check the tightness of the locking knob 11 of each planting unit 4 and the sliding flexibility of the guide slider 10; clean the impurities in the seedling trough 5 and check the filter screen of the drainage hole 29; ensure that all components are firmly connected and function normally; and complete the device preparation work before cutting.

[0034] S2: Select a breathable and moisture-retaining mixed substrate and moisten it to a suitable state. Select healthy and disease-free plant cuttings, prune excess leaves, retain 2-3 buds and cut the bottom at an angle. If necessary, soak the cuttings in rooting hormone to complete the preparation of the cutting substrate and cuttings.

[0035] S3: Connect and fix the planting cylinder 12 to the seedling trough 5 through the connecting rod 13, ensuring that the planting cylinder 12 and the inner wall of the planting cylinder 6 are tightly fitted. Fill the prepared substrate evenly into the planting cylinder 6 and the planting cylinder 12. The substrate height is slightly lower than the upper opening of the planting cylinder 12 and compact it to complete the assembly of the planting unit 4.

[0036] S4: Use a tool to make a hole in the center of the substrate, insert the treated cuttings into the hole, and insert them to a depth of 1 / 3 to 1 / 2 of the cutting length. Adjust the verticality of the cuttings so that the height of the cuttings in the same ring seedling layer 3 is basically the same, and complete the cutting insertion operation.

[0037] S5: Lightly spray clean water onto the leaf surface of the cuttings through the spray head, and add clean water through the water inlet 25 of the seedling trough 5 to ensure that the absorbent cotton strip 16 is fully saturated with water. The water level in the seedling trough 5 should not submerge the water inlet 25. Tighten the locking knob 11 on the guide slider 10 to lock the relative position of the planting cylinder 6 and the spiral guide cylinder 8, thus completing the initial moisturizing and fixing operation.

[0038] S6: Turn on the lighting device on the lower surface of the partition plate 2, and adjust the light duration to 8-12 hours per day according to the needs of the plant varieties. Rotate the partition plate 2 regularly to avoid shading. Start the water pump and adjust the water supply through the main flow control valve and the stratified flow control valve so that the sprinkler head replenishes water and cools the leaves at regular intervals. At the same time, water is supplied to the seedling trough 5 through the water inlet 25. Excess water is recycled and reused through the drain hole 29 and the return water pipe, thus completing the light and sprinkler control work during the seedling period.

[0039] S7: Using the scale markings on the outer wall of the transparent planting tube 6, regularly observe the spiral growth of the roots along the root guide groove 7, record the root growth length and health status, and if any abnormalities such as root rot or slow growth are found, adjust the substrate humidity or replace the substrate in time to complete the monitoring of root growth.

[0040] S8: When the root length is observed to reach 5-10cm and form a spiral trajectory along the root guide groove 7, turn off the corresponding layer of spray and water supply system. After the substrate is slightly dry, rotate the locking knob 11 to release the locking state of the planting cylinder 6 and the spiral guide cylinder 8, and complete the unlocking preparation work before transplanting and seedling removal.

[0041] S9: Under its own gravity, the planting cylinder 6 rotates and slides down along the spiral trajectory of the guide groove 9 of the spiral guide cylinder 8, while the planting cylinder 12 remains fixed. By utilizing the reverse spiral structure of the guide groove 9 and the root guide groove 7, the roots growing along the root guide groove 7 are simultaneously rotated out, avoiding root tearing or entanglement damage, thus completing the non-destructive rotation operation of the seedling.

[0042] S10: After the planting cylinder 6 slides down to the lowest point, gently remove the seedling, remove the base of the planting cylinder 12, and transplant the seedling along with the attached substrate to the target cultivation container or field to complete the seedling removal and planting operation.

[0043] S11: Remove the seedling tray 5, clean the internal residual substrate and roots, rinse the filter screen, wipe the inner and outer walls of the planting cylinder 6 and the spiral guide cylinder 8, slide the planting cylinder 6 upwards to reset and tighten the locking knob 11 to complete the cleaning and reset of the device.

[0044] S12: Check the absorbency of absorbent swab 16. If it is old, replace it with a new swab. Inspect the spray head and water supply pipeline to ensure there are no leaks or blockages. Clean up the recycled water in the return water pipeline, filter it and set it aside for later use. Complete the system maintenance of the device.

[0045] The above description is only a preferred embodiment of the present invention, but the scope of protection of the present invention is not limited thereto. Any equivalent substitutions or modifications made by those skilled in the art within the scope of the technology disclosed in the present invention, based on the technical solution and inventive concept of the present invention, should be covered within the scope of protection of the present invention.

Claims

1. A column-type plant cutting propagation device, comprising a column-type main body (1), characterized in that, The column-type main body (1) is fixedly equipped with multiple partition plates (2) at intervals along its axial direction. The upper surface of each partition plate (2) is provided with an annular seedling layer (3). The annular seedling layer (3) includes multiple planting units (4). Each planting unit (4) includes: The seedling tray (5) is fixedly installed on the partition plate (2); The planting tube (6) is a cylindrical structure with an open top, and its inner wall is provided with a spiral root guide groove (7) that extends continuously from top to bottom. The spiral guide cylinder (8) is fixedly installed at the bottom of the seedling trough (5), and the spiral guide cylinder (8) is coaxially sleeved on the lower outer side of the planting cylinder (6). The spiral guide cylinder (8) has a spiral guide groove (9) on its side wall. The guide slider (10) is fixedly installed on the bottom outer wall of the planting cylinder (6) and corresponds to the position of the guide groove (9). The guide slider (10) slides through the guide groove (9) and can move along the trajectory of the guide groove (9). A locking knob (11) is threaded on the guide slider (10). The locking knob (11) is located outside the spiral guide cylinder (8) and is used to lock the relative position of the planting cylinder (6) and the spiral guide cylinder (8). The planting tube (12) is coaxially embedded in the upper inner side of the planting tube (6), and the planting tube (12) is fixedly connected to the seedling trough (5) through the connecting rod (13); The spiral parameters of the guide groove (9) and the root guide groove (7) are matched, and their spiral directions are opposite. When the locking knob (11) is released from the locked state, the planting tube (6) rotates and slides down along the spiral trajectory of the guide groove (9) under its own gravity, while the planting tube (12) remains fixed, so that the planting tube (6) and the planting tube (12) are relatively separated, and the plant along with its roots growing along the root guide groove (7) is synchronously spiraled out. The planting tube (12) is a frustum-shaped tube structure with an open top and an open bottom. Its diameter gradually decreases from top to bottom. The planting tube (12) is coaxially installed at the upper opening of the planting tube (6), and the outer wall of the planting tube (12) is attached to the inner wall of the planting tube (6) to form a sliding fit. The bottom end face of the planting tube (12) is higher than the uppermost starting position of the root guide groove (7).

2. The column-type plant cutting propagation device according to claim 1, characterized in that, The planting tube (6) has ventilation holes on its side wall and water permeable holes (15) on its bottom end face. Water-absorbing cotton strips (16) are embedded in the water permeable holes (15). One end of the water-absorbing cotton strips (16) extends into the planting tube (6) and the other end extends downward into the seedling trough (5).

3. The column-type plant cutting propagation device according to claim 2, characterized in that, The partition plate (2) is rotatably assembled onto the outer peripheral wall of the column-type main body (1); The lower surface of the partition plate (2) is evenly provided with a number of lighting devices and a number of spray heads along the circumference, and the lighting devices and spray heads are set in the annular seedling layer (3) below them. The upper surface of the partition plate (2) is provided with an installation groove (19) that is compatible with the bottom of the seedling trough (5) for each planting unit (4), and the bottom of the seedling trough (5) is fixedly embedded in the installation groove (19).

4. The column-type plant cutting propagation device according to claim 3, characterized in that, The column-type main body (1) is a hollow column structure with maintenance windows (20) on its side wall. A water pump and a main water supply pipe extending along the axial direction are fixedly installed inside. The outer periphery of the column-type main body (1) is fixedly equipped with an annular water supply pipe (23) at the height position of each layer of partition plate (2). The annular water supply pipe (23) is connected to the main water supply pipe through a water supply hose. The sprinkler heads on each partition plate (2) are connected to the corresponding annular water pipe (23) via water delivery hoses; Each seedling trough (5) has a water inlet (25) on the lower side wall, and a ring water pipe (23) is connected to the water inlet (25) of each seedling trough (5) through a water delivery hose; The main water supply pipeline is equipped with a total flow control valve, and each annular water supply pipe (23) is equipped with a tiered flow control valve.

5. A column-type plant cutting propagation device according to claim 4, characterized in that, The planting tube (6) is made of transparent hard plastic, and its outer wall is uniformly engraved with scale markings for observing the length of root growth along the axial direction.

6. A column-type plant cutting propagation device according to claim 5, characterized in that, One end of the connecting rod (13) is fixedly connected to the outer edge of the upper surface of the planting tube (12), and the other end is inserted and fixed to the seedling trough (5) through an interference fit.

7. A column-type plant cutting propagation device according to claim 6, characterized in that, The seedling trough (5) is equipped with a liquid level sensor and a drain hole (29). A filter screen is installed in the drain hole (29). The column-type main body (1) is equipped with a return water pipe. The drain hole (29) is connected to the return water pipe.

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