A three-dimensional cultivation substrate filling device with adjustable air permeability

By combining a vibrating motor and a Velcro structure, the problem of unstable air permeability adjustment in vertical cultivation devices is solved, achieving uniform substrate air permeability and convenient replacement of anti-slip pads, thereby improving the stability of the plant root growth environment and operational efficiency.

CN224368520UActive Publication Date: 2026-06-19INST OF AGRI ENVIRONMENT & RESOURCES YUNNAN ACAD OF AGRI SCI

Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
INST OF AGRI ENVIRONMENT & RESOURCES YUNNAN ACAD OF AGRI SCI
Filing Date
2025-06-27
Publication Date
2026-06-19

AI Technical Summary

Technical Problem

Existing vertical cultivation devices cannot precisely adjust the substrate pore structure, resulting in unstable air permeability. Furthermore, replacing the anti-slip pads is a cumbersome operation that affects plant root growth.

Method used

The system uses a vibration motor to adjust the arrangement of matrix particles, combined with a Velcro structure for quick replacement of anti-slip pads. The vibration time is quantified by a control switch, enabling convenient adjustment of breathability and replacement of anti-slip pads.

Benefits of technology

It achieves uniform regulation and stability of substrate permeability, improves operational efficiency, and ensures healthy growth of plant roots.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model discloses a kind of three-dimensional cultivation substrate filling devices with adjustable ventilation, including base, the top surface of the base is provided with limiting slot, and the inner bottom surface of limiting slot is connected with limiting seat by spring seat.The utility model in the present application, the working time of vibration motor is set by control switch, such as 5-10 minutes, vibration can make substrate particle re-arrange, eliminate the gap accumulation in filling process, the longer vibration time is, the higher substrate compactness is, the less air passage is, on the contrary, the substrate is loose, air passage increases, for example, succulent plant substrate needs high ventilation, can shorten vibration time, make air passage ≥30%;Flower seedling raising substrate is extended vibration time, make air passage maintain 15%-20%, the elastic connection of spring seat can buffer vibration impact force, avoid substrate excessive compaction, while adjusting vibration motor height by positive and negative toothed screw, different substrate can be placed cylinder is clamped and fixed, prevent sliding.
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Description

Technical Field

[0001] This utility model relates to the field of cultivation equipment technology, and in particular to a three-dimensional cultivation substrate filling device with adjustable air permeability. Background Technology

[0002] In vertical farming technology, the permeability of the substrate is a key factor affecting plant root growth. Existing technologies, such as traditional substrate filling devices, generally suffer from the following problems:

[0003] Most devices rely on manual control of filling density or single particle ratio, making it impossible to precisely adjust the substrate pore structure. They control substrate tightness through mechanical compaction, but it is difficult to quantify air permeability indicators during compaction, easily leading to over-compacted or over-loose substrates and unstable air pore ratios. When filling manually or with simple mechanical means, the distribution of substrate particles is uneven, especially in multi-layered structures of vertical cultivation, where the density difference between the bottom and top substrates is significant, resulting in a vertical gradient deviation in air permeability and affecting the overall growth of plant roots. In addition, the anti-slip pads in existing devices are mostly fixed with bolts or glued, requiring disassembly for replacement, which is cumbersome and easily damages the equipment. Some devices even lack anti-slip structures, causing the container to shake during filling, resulting in uneven substrate accumulation and further affecting the air permeability adjustment effect. Traditional devices lack a quantifiable air permeability adjustment mechanism, relying on operator experience to control the filling process. They cannot precisely control substrate air permeability through standardized parameters such as vibration duration and frequency, making it difficult to adapt to the differentiated air pore requirements of different plants.

[0004] To address these shortcomings, we propose a three-dimensional cultivation substrate filling device with adjustable air permeability. Utility Model Content

[0005] The purpose of this invention is to provide an adjustable air permeability three-dimensional cultivation substrate filling device to address the shortcomings of existing technologies.

[0006] To achieve the above objectives, the present invention adopts the following technical solution: an adjustable air permeability three-dimensional cultivation substrate filling device, including a base, a limiting groove is formed on the top surface of the base, and the inner bottom surface of the limiting groove is connected to a limiting seat through a spring seat. A support frame is welded to the top surface of the limiting seat, and a storage cylinder is placed on the support frame. A positive and negative threaded screw is rotatably connected inside the support frame, and a handwheel is fixedly installed at one end of the positive and negative threaded screw to the outside of the support frame. A moving block is used in conjunction with the surface of the positive and negative threaded screw, and a limiting plate is fixedly connected to the top surface of the moving block. A guide groove is formed on the top surface of the support frame for the limiting plate to slide. A vibration motor is fixedly installed on the bottom surface of the support frame.

[0007] The limiting plate has a Velcro surface attached to the side of the storage tube, and a Velcro hook surface attached to the side of the Velcro surface away from the limiting plate. An anti-slip pad is attached to the other side of the Velcro hook surface.

[0008] The spring seats are provided in multiple quantities, and the multiple spring seats are evenly distributed inside the limiting groove.

[0009] The limiting plates are symmetrically distributed on both sides of the storage tube.

[0010] A control switch is fixedly installed on the outer wall of the support frame, and the control switch is electrically connected to the vibration motor through a wire.

[0011] The guide groove is arranged parallel to the forward and reverse threaded screws.

[0012] Compared with the prior art, the beneficial effects of this utility model are:

[0013] 1. In this utility model, the working time of the vibration motor is set by a control switch, such as 5-10 minutes. Vibration can rearrange the substrate particles and eliminate the accumulation of voids during the filling process. The longer the vibration time, the higher the compactness of the substrate and the fewer the air pores. Conversely, the shorter the vibration time, the looser the substrate and the more air pores. For example, succulent substrates require high air permeability, so the vibration time can be shortened to make the air pores ≥30%; flower seedling substrates can have their vibration time extended to maintain the air pores at 15%-20%. The elastic connection of the spring seat can buffer the vibration impact force and avoid excessive compaction of the substrate. At the same time, the height of the vibration motor can be adjusted by the positive and negative threaded screws to clamp and fix the placement cylinders for different substrates to prevent slippage and ensure uniform air permeability of each layer of substrate in three-dimensional cultivation.

[0014] 2. In this utility model, the anti-slip mat is bonded to the hook side of the Velcro and the rough side of the Velcro on the limiting plate. When replacing, you only need to tear off the old mat and stick on the new mat. No tools are required for disassembly, which greatly improves the efficiency of operation. The strong adhesive properties of the Velcro ensure that the anti-slip mat will not fall off during vibration, avoid the container shaking during filling and cause uneven distribution of the matrix, and further ensure the stability of breathability adjustment. Attached Figure Description

[0015] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0016] Figure 1 This is a schematic diagram of the structure of an adjustable air permeability three-dimensional cultivation substrate filling device proposed in this utility model;

[0017] Figure 2 This is a schematic diagram of the external structure of an adjustable air permeability three-dimensional cultivation substrate filling device proposed in this utility model;

[0018] Figure 3 A 3D view of the moving block, the limiting plate, the hook and loop fastener, the hook and loop fastener, and the anti-slip pad.

[0019] Legend:

[0020] 1. Base; 2. Support frame; 3. Limit seat; 4. Limit groove; 5. Spring seat; 6. Vibration motor; 7. Handwheel; 8. Positive and negative threaded screw; 9. Moving block; 10. Guide groove; 11. Limit plate; 12. Storage cylinder; 13. Control switch; 14. Velcro surface; 15. Velcro hook surface; 16. Anti-slip mat. Detailed Implementation

[0021] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0022] In the description of this utility model, it should be noted that the terms "center," "upper," "lower," "left," "right," "vertical," "horizontal," "inner," and "outer," etc., indicating the orientation or positional relationship, are based on the orientation or positional relationship shown in the accompanying drawings and are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this utility model; the terms "first," "second," and "third" are used for descriptive purposes only and should not be construed as indicating or implying relative importance; furthermore, unless otherwise explicitly specified and limited, the terms "installed," "connected," and "joined" should be interpreted broadly, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium; it can be a connection within two components. For those skilled in the art, the specific meaning of the above terms in this utility model can be understood according to the specific circumstances.

[0023] Please refer to Figure 1 , Figure 2 and Figure 3 An adjustable air permeability three-dimensional cultivation substrate filling device includes a base 1, a limiting groove 4 is formed on the top surface of the base 1, and the inner bottom surface of the limiting groove 4 is connected to the limiting seat 3 through a spring seat 5.

[0024] The base 1 serves as the basic support component of the device, providing a stable mounting surface. The limiting groove 4 is opened on the top surface of the base 1, providing guiding space for the vertical movement of the limiting seat 3, ensuring that the limiting seat 3 moves along a fixed trajectory. The spring seat 5 elastically connects the inner bottom surface of the limiting groove 4 with the bottom surface of the limiting seat 3. Its function is to buffer the impact force when the vibration motor 6 is working, preventing the entire device from shaking, while allowing the limiting seat 3 to float up and down within a certain range.

[0025] A support frame 2 is welded to the top surface of the limiting seat 3, and a storage tube 12 is placed on the support frame 2.

[0026] The support frame 2 is fixed to the top surface of the limiting seat 3 by welding, forming a support frame perpendicular to the base 1. It is used to install core components such as the vibration motor 6 and the lead screw, and to support the storage cylinder 12. The storage cylinder 12 is placed on the support frame 2 to hold cultivation containers (such as flower pots). It is the operating carrier for substrate filling. Its position is limited by the support frame 2 to ensure stability and no displacement during the filling process.

[0027] The support frame 2 is internally rotatably connected to a positive and negative threaded screw 8, and one end of the positive and negative threaded screw 8 extends to the outside of the support frame 2 and is fixedly installed with a handwheel 7.

[0028] The lead screw 8 with positive and negative threads passes through the inside of the support frame 2 and is rotatably connected by bearings. Its threaded section is divided into positive and negative threads, which can drive the moving block 9 in both directions. The handwheel 7 is fixed to one end of the lead screw and extends to the outside of the support frame 2. The operator drives the lead screw to rotate by rotating the handwheel 7 to achieve mechanical manual control.

[0029] The surface of the positive and negative threaded screw 8 is fitted with a movable block 9, and the top surface of the movable block 9 is fixedly connected to a limit plate 11.

[0030] The movable block 9 engages with the lead screw 8 via an internal thread. When the lead screw rotates, the movable block 9 moves along the lead screw axis, causing the limiting plate 11 to move synchronously. The limiting plate 11 is fixed to the top surface of the movable block 9 and is used to clamp the storage cylinder 12. Its position is adjusted as the movable block 9 moves, so as to achieve adaptive clamping of containers of different sizes.

[0031] The top surface of the support frame 2 is provided with a guide groove 10 for sliding connection of the limiting plate 11, and the bottom surface of the support frame 2 is fixedly installed with a vibration motor 6.

[0032] The guide groove 10 is set parallel to the positive and negative threaded screws 8 to provide a horizontal sliding track for the limiting plate 11, ensuring that the limiting plate 11 maintains a straight line movement when the moving block 9 moves, and avoiding deviation. The vibration motor 6 is fixed to the bottom surface of the support frame 2 and generates vertical vibration when working, which is transmitted to the substrate in the storage cylinder 12 through the support frame 2 to realize the adjustment of particle arrangement.

[0033] The surface of the limiting plate 11 near the storage tube 12 is attached with a hook and loop fastener 14, and the surface of the hook and loop fastener 14 away from the limiting plate 11 is attached with a hook and loop fastener 15, and the other side of the hook and loop fastener 15 is attached with an anti-slip pad 16.

[0034] The hook and loop side 14 is adhered to the inside of the limiting plate 11 as a basic connection layer. The hook and loop side 15 is attached to the hook and loop side. The middle layer structure is used to fix the anti-slip pad 16. The surface of the anti-slip pad 16 is provided with anti-slip texture (such as grid pattern). It is connected to the limiting plate 11 through the hook and loop side 15 to increase the friction with the cultivation container and prevent the container from shaking when vibrating. The hook and loop structure allows the anti-slip pad 16 to be quickly torn off and replaced without tools.

[0035] Please refer to Figure 3 The surface of the limiting plate 11 near the storage tube 12 is attached with a hook and loop fastener 14, and the surface of the hook and loop fastener 14 away from the limiting plate 11 is attached with a hook and loop fastener hook 15. The other side of the hook and loop fastener hook 15 is attached with an anti-slip pad 16. The hook and loop fastener 14 is attached to the inside of the limiting plate 11 as a basic connection layer.

[0036] The hook and loop fastener 15 are attached to the loop fastener, forming an intermediate layer structure for securing the anti-slip pad 16. The anti-slip pad 16 has anti-slip textures (such as a grid pattern) on its surface and is connected to the limiting plate 11 via the hook and loop fastener 15, increasing the friction with the cultivation container and preventing the container from shaking during vibration. The hook and loop fastener structure allows for quick tearing and replacement of the anti-slip pad 16 without tools.

[0037] Please refer to Figure 1 Multiple spring seats 5 are provided, and the multiple spring seats 5 are evenly distributed inside the limiting groove 4. The even distribution of multiple spring seats 5 ensures that the limiting seat 3 is subjected to balanced force, and avoids the device tilting due to single-point force. The elastic buffering effect is more uniform, effectively absorbing the impact force when the vibration motor 6 is working, and protecting the matrix structure from being over-compacted.

[0038] Please refer to Figure 1 and Figure 2 The limiting plates 11 are symmetrically distributed on both sides of the storage cylinder 12. The symmetrical limiting plates 11 on both sides move synchronously through the positive and negative threaded screws 8 to form a bidirectional clamping force on the storage cylinder 12, ensuring uniform clamping force, preventing the container from tilting or falling off during vibration, and improving filling stability.

[0039] Please refer to Figure 2 A control switch 13 is fixedly installed on the outer wall of the support frame 2, and the control switch 13 is electrically connected to the vibration motor 6 through a wire. The control switch 13 is installed on the outer wall of the base 1 for easy access by the operator. The start and stop, vibration duration and frequency of the vibration motor 6 are controlled by the wire to realize quantitative control of air permeability adjustment (such as setting a vibration time of 5-10 minutes).

[0040] Please refer to Figure 1 The guide groove 10 is set parallel to the positive and negative thread screw 8. The guide groove 10 is parallel to the screw, ensuring that the sliding direction of the limit plate 11 is consistent with the axial direction of the screw, avoiding the generation of lateral force when the moving block 9 moves, ensuring the linearity and stability of the clamping action, and thus ensuring the uniformity of the matrix filling.

[0041] Working principle: When in use, place the cultivation container into the storage tube 12, turn the handwheel 7 to drive the forward and reverse threaded screw 8 to rotate, which drives the moving block 9 to move left and right in the support frame 2, so that the limiting plate 11 slides along the guide groove 10 and clamps the container from both sides. At this time, the hook and loop fastener 14 on the limiting plate 11 fixes the anti-slip pad 16 through the hook and loop fastener hook 15 to prevent the container from shaking. Turn on the control switch 13, and the vibration generated by the vibration motor 6 is transmitted to the substrate through the support frame 2. The compactness of the substrate is changed by adjusting the vibration time. The longer the vibration time, the more compact the substrate and the fewer the air pores. The shorter the time, the looser the substrate and the more the air pores. At the same time, the spring seat 5 buffers the vibration to avoid excessive compaction of the substrate. If the anti-slip pad 16 needs to be replaced, the hook and loop fastener hook 15 and the loop fastener can be directly peeled off and glued.

[0042] The above description is only a preferred embodiment of the present utility model, but the protection scope of the present utility model is not limited thereto. Any equivalent substitutions or changes made by those skilled in the art within the technical scope disclosed in the present utility model, based on the technical solution and the inventive concept of the present utility model, should be included within the protection scope of the present utility model.

Claims

1. A three-dimensional cultivation substrate filling device with adjustable air permeability, comprising a base (1), characterized in that, The top surface of the base (1) has a limiting groove (4), and the inner bottom surface of the limiting groove (4) is connected to the limiting seat (3) through a spring seat (5). The top surface of the limiting seat (3) is welded with a support frame (2), and a storage tube (12) is placed on the support frame (2). The inside of the support frame (2) is rotatably connected with a positive and negative threaded screw (8), and one end of the positive and negative threaded screw (8) extends to the outside of the support frame (2) and is fixedly installed with a handwheel (7). The surface of the positive and negative threaded screw (8) is fitted with a moving block (9), and the top surface of the moving block (9) is fixedly connected with a limiting plate (11). The top surface of the support frame (2) has a guide groove (10) for the limiting plate (11) to slide. The bottom surface of the support frame (2) is fixedly installed with a vibration motor (6).

2. The adjustable air permeability three-dimensional cultivation substrate filling device according to claim 1, characterized in that, The limiting plate (11) has a hook and loop fastener (14) attached to the side surface near the storage tube (12), and a hook and loop fastener (15) attached to the side surface away from the limiting plate (11), and an anti-slip pad (16) attached to the other side surface of the hook and loop fastener (15).

3. The adjustable air permeability three-dimensional cultivation substrate filling device according to claim 1, characterized in that, The spring seat (5) is provided in multiple ways, and the multiple spring seats (5) are evenly distributed inside the limiting groove (4).

4. The adjustable air permeability three-dimensional cultivation substrate filling device according to claim 1, characterized in that, The limiting plates (11) are symmetrically distributed on both sides of the storage tube (12).

5. The adjustable air permeability three-dimensional cultivation substrate filling device according to claim 1, characterized in that, A control switch (13) is fixedly installed on the outer wall of the support frame (2), and the control switch (13) is electrically connected to the vibration motor (6) through a wire.

6. The adjustable air permeability three-dimensional cultivation substrate filling device according to claim 1, characterized in that, The guide groove (10) is arranged parallel to the positive and negative threaded screws (8).