Plant hydroponic planting device

Abstract

The utility model provides a kind of plant hydroponics planting device, belong to plant cultivation technical field.The plant hydroponics planting device includes knob switch, connecting piece, clamping assembly, to fix the middle part of plant sample hydroponics component, and top layer plate, clamping layer plate and bottom layer plate are sequentially arranged from top to bottom.The utility model in through clamping assembly, realize the in situ inversion infection-reposition culture seamless switching of hydroponics plant, avoid the root mechanical damage caused by repeatedly pulling and inserting plant in traditional operation, ensure the physiological integrity and data reliability of experimental sample.

Description

Technical Field

[0001] This utility model relates to the field of plant cultivation technology, specifically to a hydroponic plant cultivation device. Background Technology

[0002] Hydroponics, as an important form of soilless cultivation, has been widely applied in modern agriculture, home gardening, and scientific research due to its high efficiency and intensive nature. Traditional hydroponic systems mostly use planting board structures, achieving large-scale crop cultivation through matrix-style planting holes, which provides a foundation for batch sample processing in plant genetic engineering research. In plant genetic engineering research, transient expression infection is a key technical step, requiring efficient infection operations on large-scale cultivated plants. In current plant infection methods, vacuum infection equipment is typically used to infect plant leaves. When the target is a plant in a hydroponic seedbed, the plant must be removed one by one and transferred to an independent vacuum device for infection. Afterward, the plant must be transplanted back into the hydroponic system for further cultivation. However, this method has the following problems: repeated removal and insertion of the plant can easily cause mechanical damage to the roots, affecting the accuracy of the experimental results; the transfer process is time-consuming and labor-intensive, making it difficult to meet the timeliness requirements of high-throughput experiments; and the infected plant needs to be fixed in the hydroponic system again, resulting in a break in the entire process of "in situ culture - transient expression infection - in situ culture", which seriously restricts research efficiency. Utility Model Content

[0003] The purpose of this invention is to provide a hydroponic plant cultivation device to address the shortcomings of the existing technology.

[0004] This utility model proposes a hydroponic plant cultivation device, including a rotary switch, a connector, a clamping assembly, a hydroponic fixing component for fixing the middle of a plant sample, and a top plate, a clamping layer, and a bottom plate arranged sequentially from top to bottom. The top plate has a first mounting hole and a planting hole corresponding to the clamping assembly. The bottom plate has a support groove corresponding to the planting hole. The clamping assembly and the rotary switch are respectively mounted on the clamping layer, and the top of the rotary switch is inserted into the first mounting hole. The planting hole allows the hydroponic fixing component to pass through. The connector is connected to the rotary switch and the clamping assembly to control the opening and closing state of the clamping assembly. When the rotary switch is in the closed state, it controls the clamping assembly to be in the closed state, so that the clamping assembly clamps the hydroponic fixing component. When the rotary switch is in the open state, it controls the clamping assembly to be in the open state, so that the clamping assembly and the hydroponic fixing component are separated. The support groove abuts against the bottom of the hydroponic fixing component and supports the hydroponic fixing component.

[0005] Furthermore, the rotary switch is in the off state when its angle is 0 degrees, and in the on state when it is rotated 90 degrees clockwise.

[0006] Furthermore, the clamping assembly includes two symmetrically arranged clamping structures, the first parts of the two clamping structures respectively abutting against the two sides of the plant sample, and the connector includes two symmetrically arranged linkage mechanisms, the first part of the first linkage mechanism is connected to one end of the rotary switch and the second part is connected to the second part of the first clamping structure, the first part of the second linkage mechanism is connected to the other end of the rotary switch and the second part is connected to the second part of the second clamping structure.

[0007] Further, the clamping structure includes a clamping plate, a first pulling plate connected to one end of the clamping plate, and a second pulling plate connected to the other end of the clamping plate. The clamping plates of the two clamping structures are arranged opposite to each other, the first pulling plates of the two clamping structures are arranged opposite to each other, and the second pulling plates of the two clamping structures are arranged opposite to each other. The two linkage mechanisms include a driving rod and a driven rod hinged to one end of the driving rod. The other ends of the driving rods of the two linkage mechanisms are respectively connected to the two ends of a rotary switch. The rotary switch can drive the two driving rods respectively, so that the two driving rods can drive the driven rods connected to them to move left and right along the axis of the driven rod. The first pulling plate of the first clamping structure of one clamping assembly is connected to the driven rod of the first linkage mechanism, and the second pulling plate of the second clamping structure is connected to the driven rod of the second linkage mechanism. When the knob switch is in the off state, the distance between the clamping plates of the two clamping structures of one clamping assembly is a first preset value, the distance between the first pulling plates of the two clamping structures is a second preset value, and the distance between the second pulling plates of the two clamping structures is a third preset value. The clamping plates of the two clamping structures can clamp the hydroponic fixing component. When the knob switch is in the on state, the distance between the clamping plates of the two clamping structures of one clamping assembly is a fourth preset value, the distance between the first pulling plates of the two clamping structures is a fifth preset value, and the distance between the second pulling plates of the two clamping structures is a sixth preset value. The clamping plates of the two clamping structures are separated from the hydroponic fixing component. The fourth preset value is greater than the first preset value, the fifth preset value is greater than the second preset value, and the sixth preset value is greater than the third preset value.

[0008] Furthermore, there are multiple clamping assemblies connected to one of the connectors, multiple planting holes corresponding to the multiple clamping assemblies, and multiple bearing grooves corresponding to the multiple clamping assemblies; the first pull plate of the first clamping structure of the multiple clamping assemblies connected to one connector is respectively connected to the driven rod of the first linkage mechanism, and the second pull plate of the second clamping structure is respectively connected to the driven rod of the second linkage mechanism.

[0009] Furthermore, the top of the clamping layer is detachably connected to the bottom of the top layer, and the bottom is detachably connected to the top of the bottom layer.

[0010] Furthermore, a first pull plate and a second pull plate of the clamping structure are respectively vertically connected to the clamping plate.

[0011] Furthermore, anti-slip grooves are provided on both sides of the two clamping plates of the clamping structure that are close to each other, and anti-slip protrusions matching the anti-slip grooves are provided on both sides of the hydroponic fixing component that abut against the two clamping plates respectively.

[0012] Furthermore, a plurality of rotary switches are installed on the clamping layer plate along the longitudinal direction, and there is at least one clamping component corresponding to each rotary switch. The clamping component corresponding to each rotary switch is installed on the clamping layer plate along the transverse direction. The planting holes are a plurality of those corresponding to the plurality of clamping components, and the bearing grooves are a plurality of those corresponding to the plurality of clamping components.

[0013] Furthermore, the number of planting holes on a top plate is 4 to 100, the number of clamping components installed on a clamping layer plate is multiple, corresponding to the multiple planting holes, and the number of bearing grooves on a bottom plate is multiple, corresponding to the multiple planting holes.

[0014] The hydroponic plant cultivation device of this utility model has the following beneficial effects: By using clamping components, a seamless switch between in-situ inverted infection and repositioning culture of hydroponic plants can be achieved, avoiding the mechanical damage to the roots caused by repeated insertion and removal of plants in traditional operations, and ensuring the physiological integrity of experimental samples and the reliability of data. Attached Figure Description

[0015] The accompanying drawings, which are incorporated in and constitute a part of this specification, illustrate embodiments of the present invention and, together with the description, serve to explain the principles of the present invention. In these drawings, similar reference numerals are used to denote similar elements. The drawings described below are some embodiments of the present invention, but not all embodiments. Other drawings will be readily available to those skilled in the art based on these drawings without any inventive effort.

[0016] Figure 1 This is a top view of a hydroponic plant cultivation device according to an embodiment of the present invention; Figure 2 This is a top view of the bottom plate in a hydroponic plant cultivation device according to an embodiment of the present invention; Figure 3 This is a side view of the clamping shelf in a hydroponic plant cultivation device according to an embodiment of the present invention, when the knob switch is in the closed state; Figure 4 This is a side view of the clamping shelf in a hydroponic plant cultivation device according to an embodiment of the present invention, when the knob switch is in the on state. Figure 5 This is a schematic diagram of a hydroponic plant cultivation device according to an embodiment of the present invention, in which the knob switch is in the closed state and the clamping component is in the closed state. Figure 6 This is a schematic diagram of the structure of a hydroponic plant cultivation device according to an embodiment of the present invention, in which the knob switch is in the open state and the clamping component is in the open state. Figure 7 This is a schematic diagram of the structure of a hydroponic plant cultivation device connected to a hydroponic system according to an embodiment of the present invention.

[0017] In the diagram: 1-Top plate, 2-Bottom plate, 3-Planting hole, 4-Turn switch, 5-Clamping assembly, 51-Clamping plate, 52-First pull plate, 53-Second pull plate, 6-Bearing groove, 7-Clamping layer, 8-Hydrology fixing component, 9-Active rod, 10-Driven rod, 11-Hydrology system. Detailed Implementation

[0018] To make the objectives, technical solutions, and advantages of the embodiments of this utility model clearer, the technical solutions of the embodiments of this utility model will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some, not all, of the embodiments of this utility model. All other embodiments obtained by those skilled in the art based on the embodiments of this utility model without creative effort are within the scope of protection of this utility model. It should be noted that, unless otherwise specified, the embodiments and features in the embodiments of this application can be arbitrarily combined with each other.

[0019] Please see Figures 1 to 7 This utility model discloses a hydroponic plant cultivation device, comprising a rotary switch 4, a connector, a clamping assembly 5, a hydroponic fixing member 8 for fixing the middle of a plant sample, and a top plate 1, a clamping layer 7, and a bottom plate 2 arranged sequentially from top to bottom. The top plate 1 has a first mounting hole and a planting hole 3 corresponding to the clamping assembly 5. The bottom plate 2 has a bearing groove 6 corresponding to the planting hole 3. The clamping assembly 5 and the rotary switch 4 are respectively mounted on the clamping layer 7, and the top of the rotary switch 4 is inserted into the first mounting hole. Mounting hole; planting hole 3 allows hydroponic fixing component 8 to pass through; connectors are respectively connected to knob switch 4 and clamping assembly 5 to control the opening and closing state of clamping assembly 5; when knob switch 4 is in the closed state, it controls clamping assembly 5 to be in the closed state, so that clamping assembly 5 clamps hydroponic fixing component 8; when knob switch 4 is in the open state, it controls clamping assembly 5 to be in the open state, so that clamping assembly 5 and hydroponic fixing component 8 are separated, and bearing groove 6 abuts against the bottom of hydroponic fixing component 8 and supports hydroponic fixing component 8.

[0020] Here, the opening and closing state of the clamping component 5 is controlled by the knob switch 4. When the knob switch 4 is in the closed state, the clamping component 5 is in the closed state, and the clamping component 5 clamps the hydroponic fixing piece 8. When the knob switch 4 is in the open state, the clamping component 5 is in the open state, and the clamping component 5 and the hydroponic fixing piece 8 separate. This allows for rapid loading and unloading and stable fixation of plant samples, supporting integrated operation of the entire process of "in situ culture - transient expression infection - in situ culture", significantly improving the efficiency and convenience of plant genetic engineering research. This application applies to the entire process of in situ culture, inverted vacuum infection, and subsequent culture of the hydroponic system 11. The hydroponic fixing piece 8 can be made of hydroponic cotton.

[0021] Specifically, the bottom plate 2 is provided with a second mounting hole, and the bottom of the rotary switch 4 is inserted into the second mounting hole.

[0022] Specifically, the support groove 6 can be a cylindrical support groove. When the clamping component 5 is in the open state, the support groove 6 supports the hydroponic fixing component 8 and prevents the hydroponic fixing component 8 from falling off.

[0023] The rotary switch 4 can be in the closed state when its angle is 0 degrees, and in the open state when it is rotated 90 degrees clockwise.

[0024] Specifically, when the knob switch 4 is at 0 degrees, it is in the closed state, thus controlling the clamping assembly 5 to be in the closed state. When the knob switch 4 is at 90 degrees, it is in the open state, thus controlling the clamping assembly 5 to be in the open state. When the knob switch 4 is at 0 degrees, rotating it clockwise changes its angle from 0 degrees to 90 degrees. During this process, the knob switch 4 is in the first gradually opening state. The rotary switch 4 controls the clamping assembly 5 to be in the second gradually opening state, thus gradually increasing the distance between the clamping assembly 5 and the hydroponic fixing component 8. When the rotary switch 4 is at 90 degrees, rotating the rotary switch 4 counterclockwise changes its angle from 90 degrees to 0 degrees. During this change, the rotary switch 4 is in the first gradually closing state, controlling the clamping assembly 5 to be in the second gradually closing state, thus gradually decreasing the distance between the clamping assembly 5 and the hydroponic fixing component 8. By controlling the opening and closing state of the clamping assembly 5 through the angle of the rotary switch 4, the fixing and loading / unloading of plant samples can be achieved.

[0025] Specifically, the clamping component 5 is in a fully closed state when the knob switch 4 is at an angle of 0 degrees, forming a bidirectional clamping force on the stem of the plant sample and the hydroponic fixing piece 8; the clamping component 5 is in a fully open state when the knob switch 4 is at an angle of 90 degrees, supporting the free loading and unloading of the plant sample.

[0026] The clamping assembly 5 may include two symmetrically arranged clamping structures. The first part of the two clamping structures respectively abuts against the two sides of the plant sample. The connector includes two symmetrically arranged linkage mechanisms. The first part of the first linkage mechanism is connected to one end of the rotary switch 4, and the second part is connected to the second part of the first clamping structure. The first part of the second linkage mechanism is connected to the other end of the rotary switch 4, and the second part is connected to the second part of the second clamping structure.

[0027] The clamping structure may include a clamping plate 51, a first pulling plate 52 connected to one end of the clamping plate 51, and a second pulling plate 53 connected to the other end of the clamping plate 51. The clamping plates 51 of the two clamping structures are arranged opposite to each other, the first pulling plates 52 of the two clamping structures are arranged opposite to each other, and the second pulling plates 53 of the two clamping structures are arranged opposite to each other. The two linkage mechanisms include a driving rod 9 and a driven rod 10 hinged to one end of the driving rod 9. The other ends of the driving rods 9 of the two linkage mechanisms are respectively connected to the two ends of a rotary switch 4. The rotary switch 4 can drive the two driving rods 9 respectively, so that the two driving rods 9 can drive the driven rods 10 connected to them to move left and right along the axis of the driven rod 10. The first pulling plate 52 of the first clamping structure of a clamping assembly 5 is connected to the driven rod 10 of the first linkage mechanism, and the second pulling plate 53 of the second clamping structure is connected to the second linkage mechanism. The driven rod 10 of the structure; when the knob switch 4 is in the closed state, the distance between the clamping plates 51 of the two clamping structures of a clamping assembly 5 is a first preset value, the distance between the first pull plates 52 of the two clamping structures is a second preset value, and the distance between the second pull plates 53 of the two clamping structures is a third preset value, and the clamping plates 51 of the two clamping structures can clamp the hydroponic fixing member 8; when the knob switch 4 is in the open state, the distance between the clamping plates 51 of the two clamping structures of a clamping assembly 5 is a fourth preset value, the distance between the first pull plates 52 of the two clamping structures is a fifth preset value, and the distance between the second pull plates 53 of the two clamping structures is a sixth preset value, and the clamping plates 51 of the two clamping structures are separated from the hydroponic fixing member 8 respectively; the fourth preset value is greater than the first preset value, the fifth preset value is greater than the second preset value, and the sixth preset value is greater than the third preset value.

[0028] Specifically, when the rotary switch 4 is in the closed state, the driven rod 10 of the linkage mechanism is vertically connected to the driving rod 9; when the rotary switch 4 changes from the closed state to the open state, the driving rod 9 of the first linkage mechanism pulls the driven rod 10 connected to it to move to the left, and the driving rod 9 of the second linkage mechanism pulls the driven rod 10 connected to it to move to the right. When the rotary switch 4 is in the open state, the clamping assembly 5 is in the open state.

[0029] There can be multiple clamping components 5 connected to a connector, multiple planting holes 3 corresponding to multiple clamping components 5, and multiple bearing grooves 6 corresponding to multiple clamping components 5; the first pull plate 52 of the first clamping structure of the multiple clamping components 5 connected to a connector is respectively connected to the driven rod 10 of the first linkage mechanism, and the second pull plate 53 of the second clamping structure is respectively connected to the driven rod 10 of the second linkage mechanism.

[0030] The top of the clamping layer 7 is detachably connected to the bottom of the top layer 1, and the bottom is detachably connected to the top of the bottom layer 2.

[0031] Specifically, the top plate 1, the clamping plate 7, and the bottom plate 2 are connected sequentially to form a planting board. The planting board is installed in a common hydroponic system 11 with the top plate 1 on top and the bottom plate 2 on the bottom. The top plate 1, the clamping plate 7, and the bottom plate 2 can all be made of plastic. The top plate 1 can be a plastic top plate 1, the clamping plate 7 can be a plastic clamping plate 7, and the bottom plate 2 can be a plastic bottom plate 2. The top of the clamping plate 7 can be detachably connected to the bottom of the top plate 1 via clips, and the bottom of the clamping plate 7 can be detachably connected to the top of the bottom plate 2 via clips.

[0032] A first pull plate 52 and a second pull plate 53 of a clamping structure can be vertically connected to a clamping plate 51, respectively.

[0033] Specifically, the first pull plate 52 and the second pull plate 53 of a clamping structure can be vertically connected to the clamping plate 51, and the clamping assembly 5 can be a [ ]” type clamping assembly.

[0034] On the two clamping plates 51 of a clamping structure, anti-slip grooves can be provided on both sides that are close to each other. On the two sides of the hydroponic fixing component 8 that abut against the two clamping plates 51, anti-slip protrusions that match the anti-slip grooves are provided.

[0035] Specifically, the anti-slip grooves and anti-slip protrusions work together to generate a bidirectional clamping force when the hydroponic fixing component 8 is inverted, ensuring that the plant samples are firmly fixed, improving the convenience of the streamlined operation, and increasing the efficiency of the "in-situ culture - transient expression and infection - in-situ culture" process. When the clamping component 5 is fully opened, the plants on the planting board can be quickly loaded and unloaded.

[0036] Multiple rotary switches 4 can be installed on the clamping plate 7 along the longitudinal direction. There is at least one clamping component 5 corresponding to each rotary switch 4. The clamping component 5 corresponding to each rotary switch 4 is installed on the clamping plate 7 along the transverse direction of the clamping plate 7. There are multiple planting holes 3 corresponding to the multiple clamping components 5. There are multiple bearing grooves 6 corresponding to the multiple clamping components 5.

[0037] Specifically, there can be multiple clamping components 5 connected to a rotary switch 4, and these multiple clamping components 5 are installed on the clamping shelf 7 along the transverse direction of the clamping shelf 7. Each row of rotary switches 4 is connected to the clamping components 5 in that row through two sets of linkage mechanisms.

[0038] There can be 4 to 100 planting holes 3 on a top plate 1, and multiple clamping components 5 installed on a clamping plate 7 are provided corresponding to the multiple planting holes 3. Multiple bearing grooves 6 on a bottom plate 2 are provided corresponding to the multiple planting holes 3.

[0039] Specifically, the aperture of the planting hole 3 can be customized according to the type of plant sample. There can be multiple planting holes 3 arranged in a matrix, with multiple planting holes 3 vertically penetrating the entire top plate 1.

[0040] Specifically, in this application, the knob switch 44 is first adjusted to 90°, and the plant samples that have rooted and sprouted in the hydroponic fixing component 8 are sequentially transferred to the planting holes 3 of the top plate 1. Due to the presence of the anti-slip grooves on the inner side of the bearing groove 6 and the clamping component 5, the plant samples attached to the hydroponic fixing component 8 are prevented from falling off. After the transfer is complete, the knob switch 4 is rotated to 0°, so that the clamping component 5 firmly holds the hydroponic fixing component 8. The planting board is then transferred to the hydroponic system 11 for cultivation under appropriate conditions. After a period of cultivation, when the plant body is about to undergo infection, the planting board on the hydroponic system 11 is quickly transferred and inverted (bottom plate 2 facing upwards) to complete the infection operation in the vacuum infection device. Due to the stable fixation of the clamping component 5, the plant samples are prevented from falling into the bacterial solution during infection. After infection is complete, the planting board can be quickly adjusted so that the top surface faces upwards and placed back into the hydroponic system 11 for further cultivation.

[0041] Specifically, this application addresses the problems of insufficient flexibility, low efficiency, and cumbersome operation in existing technologies, meeting the urgent need for highly efficient operation of the entire "in-situ culture-transient expression and infection-in-situ culture" process. This application can directly support rapid switching between in-situ culture and inverted infection without plant transfer, thus achieving seamless integration of the entire process. Such devices must simultaneously meet core requirements such as stable plant clamping and flexible, controllable operation to overcome the technical bottleneck of the hydroponics-infection stage in current plant genetic engineering research. Given the cumbersome operation of the transient expression and infection stage after soilless cultivation in existing plant genetic engineering technologies, this application uses clamping component 5 to fix the plant, achieving efficient and rapid "in-situ culture-transient expression and infection-in-situ culture" operation.

[0042] Specifically, this application achieves seamless switching between in-situ inverted infection and repositioning culture of hydroponic plants through the clamping component 5, avoiding mechanical damage to the roots caused by repeated insertion and removal of plants in traditional operations, ensuring the physiological integrity of experimental samples and the reliability of data; saving the loading and unloading time of planting boards on the hydroponic system 11, and meeting the timeliness requirements of large-scale samples in genetic engineering research.

[0043] The above-described contents can be implemented individually or in combination in various ways, and all such variations are within the protection scope of this utility model.

[0044] It should be noted that in the description of this application, the terms "upper end," "lower end," and "bottom end," indicating orientation or positional relationship, are based on the orientation or positional relationship shown in the accompanying drawings, or the orientation or positional relationship commonly used when the product of this application is in use. They are only for the convenience of describing this application and simplifying the description, and do not indicate or imply that the device 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 on this application. Moreover, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements, but also other elements not expressly listed, or elements inherent to such process, method, article, or apparatus. Unless otherwise limited, an element defined by the phrase "comprising one..." does not exclude the presence of other identical elements in the process, method, article, or apparatus that includes the element.

[0045] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of this utility model, and are not intended to limit it. Although this utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some of the technical features; and these modifications or substitutions do not cause the essence of the corresponding technical solutions to deviate from the spirit and scope of the technical solutions of the embodiments of this utility model.

Claims

1. A hydroponic plant cultivation device, characterized in that: The system includes a rotary switch (4), a connector, a clamping assembly (5), a hydroponic fixing component (8) for fixing the middle of the plant sample, and a top plate (1), a clamping layer (7), and a bottom plate (2) arranged sequentially from top to bottom. The top plate (1) is provided with a first mounting hole and a planting hole (3) corresponding to the clamping assembly (5). The bottom plate (2) is provided with a bearing groove (6) corresponding to the planting hole (3). The clamping assembly (5) and the rotary switch (4) are respectively installed on the clamping layer (7). The top of the rotary switch (4) is inserted into the first mounting hole. The planting hole (3) is provided with a first mounting hole and a planting hole (3) corresponding to the clamping assembly (5). The connector is connected to the rotary switch (4) and the clamping assembly (5) respectively to control the opening and closing state of the clamping assembly (5); when the rotary switch (4) is in the closed state, it controls the clamping assembly (5) to be in the closed state, so that the clamping assembly (5) clamps the hydroponic fixing component (8); when the rotary switch (4) is in the open state, it controls the clamping assembly (5) to be in the open state, so that the clamping assembly (5) and the hydroponic fixing component (8) are separated, and the bearing groove (6) abuts against the bottom of the hydroponic fixing component (8) and supports the hydroponic fixing component (8).

2. The hydroponic plant cultivation device as described in claim 1, characterized in that: The rotary switch (4) is in the closed state when its angle is 0 degrees, and in the open state when it is rotated 90 degrees clockwise.

3. A hydroponic plant cultivation device as described in claim 1 or 2, characterized in that: The clamping assembly (5) includes two symmetrically arranged clamping structures. The first part of the two clamping structures respectively abuts against the two sides of the plant sample. The connector includes two symmetrically arranged linkage mechanisms. The first part of the first linkage mechanism is connected to one end of the rotary switch (4), and the second part is connected to the second part of the first clamping structure. The first part of the second linkage mechanism is connected to the other end of the rotary switch (4), and the second part is connected to the second part of the second clamping structure.

4. The hydroponic plant cultivation device as described in claim 3, characterized in that: The clamping structure includes a clamping plate (51), a first pulling plate (52) connected to one end of the clamping plate (51), and a second pulling plate (53) connected to the other end of the clamping plate (51). The clamping plates (51) of the two clamping structures are arranged opposite to each other, the first pulling plates (52) of the two clamping structures are arranged opposite to each other, and the second pulling plates (53) of the two clamping structures are arranged opposite to each other. The two linkage mechanisms include a driving rod (9) and a driven rod (10) hinged to one end of the driving rod (9). The other end of the active rod (9) of the mechanism is connected to both ends of the rotary switch (4); the rotary switch (4) can drive the two active rods (9) respectively, so that the two active rods (9) can drive the driven rod (10) connected to them to move left and right along the axis of the driven rod (10); the first pull plate (52) of the first clamping structure of the clamping assembly (5) is connected to the driven rod (10) of the first linkage mechanism, and the second pull plate (53) of the second clamping structure is connected to the second The driven rod (10) of the linkage mechanism; when the knob switch (4) is in the closed state, the distance between the clamping plates (51) of the two clamping structures of one clamping assembly (5) is a first preset value, the distance between the first pull plates (52) of the two clamping structures is a second preset value, and the distance between the second pull plates (53) of the two clamping structures is a third preset value, and the clamping plates (51) of the two clamping structures can clamp the hydroponic fixing member (8); when the knob switch (4) is in the open state, the distance between the clamping plates (51) of the two clamping structures of one clamping assembly (5) is a fourth preset value, the distance between the first pull plates (52) of the two clamping structures is a fifth preset value, and the distance between the second pull plates (53) of the two clamping structures is a sixth preset value, and the clamping plates (51) of the two clamping structures are separated from the hydroponic fixing member (8); the fourth preset value is greater than the first preset value, the fifth preset value is greater than the second preset value, and the sixth preset value is greater than the third preset value.

5. A hydroponic plant cultivation device as described in claim 2 or 4, characterized in that: There are multiple clamping components (5) connected to one of the connectors, multiple planting holes (3) corresponding to multiple clamping components (5), and multiple bearing grooves (6) corresponding to multiple clamping components (5); the first pull plate (52) of the first clamping structure of the multiple clamping components (5) connected to one connector is respectively connected to the driven rod (10) of the first linkage mechanism, and the second pull plate (53) of the second clamping structure is respectively connected to the driven rod (10) of the second linkage mechanism.

6. A hydroponic plant cultivation device as described in claim 1 or 2, characterized in that: The top of the clamping layer (7) is detachably connected to the bottom of the top layer (1), and the bottom is detachably connected to the top of the bottom layer (2).

7. The hydroponic plant cultivation device as described in claim 4, characterized in that: A first pull plate (52) and a second pull plate (53) of the clamping structure are respectively vertically connected to the clamping plate (51).

8. The hydroponic plant cultivation device as described in claim 4, characterized in that: On the two clamping plates (51) of the clamping structure, anti-slip grooves are provided on the two sides that are close to each other. On the two sides that abut against the two clamping plates (51) of the hydroponic fixing member (8), anti-slip protrusions that match the anti-slip grooves are provided.

9. A hydroponic plant cultivation device as described in claim 1 or 2, characterized in that: Multiple rotary switches (4) are installed on the clamping plate (7) along the longitudinal direction. There is at least one clamping component (5) corresponding to one rotary switch (4). The clamping component (5) corresponding to one rotary switch (4) is installed on the clamping plate (7) along the transverse direction of the clamping plate (7). The planting hole (3) is a plurality of the multiple clamping components (5) corresponding to the multiple clamping components (5). The bearing groove (6) is a plurality of the multiple clamping components (5) corresponding to the multiple clamping components (5).

10. A hydroponic plant cultivation device as described in claim 1 or 2, characterized in that: The number of planting holes (3) on a top plate (1) is 4 to 100, the number of clamping components (5) installed on a clamping plate (7) is multiple, corresponding to the multiple planting holes (3), and the number of bearing grooves (6) on a bottom plate (2) is multiple, corresponding to the multiple planting holes (3).

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