Tidal cultivation trough

Abstract

The present invention provides a tidal cultivation trough, comprising a cultivation trough body, wherein the cultivation trough body comprises a water inlet, a water outlet and a containing cavity, wherein a bottom of the containing cavity is provided with a bottom plate curved surface, wherein the bottom plate curved surface is provided with points A, B, C, D, E and F; wherein point A is located beside the water inlet, points A, C and D are located on a first side of the bottom plate curved surface, and points C and D are located on both sides of point A; wherein point B is located beside the water outlet, and points B and E are located on a first side of the bottom plate curved surface; wherein point A is located beside the water inlet, and points B, E and F are located on a first side of the bottom plate curved surface; wherein point A is located beside the water outlet ... Points A and F are located on the second side of the chassis curved surface, and points E and F are located on both sides of point B; the vertical height of point A>the vertical height of point C>the vertical height of point E>the vertical height of point B, the vertical height of point A>the vertical height of point D>the vertical height of point F>the vertical height of point B. When draining, the nutrient solution in the cultivation trough quickly gathers at the position of point B by its own gravity and flows to the outlet. It is difficult for water to accumulate in the trough, the dry and wet periods in the trough are distinct, and the drainage time is short. The cultivation trough is not easy to deform.

Description

Technical Field

[0001] The invention relates to the technical field of plant cultivation, in particular to a tidal cultivation trough. Background Art

[0002] Tidal irrigation seedling raising technology is a water-saving seedling raising method commonly used in hydroponic nutrient solution cultivation. Its characteristic is that it allows plants to be irrigated with nutrient solution indirectly, which can improve the utilization efficiency of nutrient solution, and the dry-wet cycle is conducive to root growth. Hydroponics is also a widely used new cultivation technology.

[0003] In the existing tidal irrigation cultivation device, when the cultivation trough is filled with water, it is impossible to ensure the balance of the water level rise in the entire liquid plane, and the bottom holes of the plug trays of individual plants are blocked, so the absorption of nutrient solution by each plant is uneven. When the cultivation trough is drained, it is difficult to drain quickly, and there is often a certain amount of water accumulation in local areas. The roots of the plants tend to move towards water, and the roots growing in the seedling tray affect the emergence of seedlings. In addition, the existing tidal irrigation cultivation troughs are generally controlled by water pumps or water valves. When multi-layer stereoscopic seedling beds are cultivated, the setting of water pumps or water valves makes the entire control system more complicated, which is not conducive to the practical application of tidal irrigation devices.

[0004] At the same time, because seedling production is not carried out throughout the year, it is not economical to leave the cultivation troughs idle during the non-seedling season, and the usage scenarios are single. In addition, because nutrient solution is present in hydroponics for a long time, the nutrient solution is easily contaminated by algae when exposed to light. Summary of the invention

[0005] The technical problem to be solved by the present invention is: to improve the application effect of dry-wet cycle seedling raising technology and cultivation technology, so that the cultivation trough has the effect of rapid and effective drainage.

[0006] In order to solve the above technical problems, the technical solution adopted by the present invention is:

[0007] A tidal cultivation trough comprises a cultivation trough body, wherein the cultivation trough body comprises a water inlet, a water outlet and a containing cavity, wherein a bottom of the containing cavity is provided with a bottom plate curved surface, wherein the bottom plate curved surface is provided with points A, B, C, D, E and F; wherein point A is located beside the water inlet, points A, C and D are located on a first side of the bottom plate curved surface, and points C and D are located on both sides of point A; wherein point B is located beside the water outlet, points B, E and F are located on a second side of the bottom plate curved surface, and points E, Point F is located on both sides of point B; point C and point E are located on the third side of the chassis curved surface, and point D and point F are located on the fourth side of the chassis curved surface; on the chassis curved surface, the vertical height from point A to point B gradually decreases, the vertical height from point A to point C gradually decreases, the vertical height from point A to point D gradually decreases, the vertical height from point C to point E gradually decreases, the vertical height from point D to point F gradually decreases, the vertical height from point E to point B gradually decreases, and the vertical height from point F to point B gradually decreases.

[0008] Furthermore, the orthographic projection of the chassis curved surface is a rectangle, the projections of point C, point D, point E and point F are respectively located at the four corners of the rectangle, and the projections of point A and point B are respectively located at the midpoints of two opposite sides of the rectangle; the vertical heights of point C and point D are equal, and the vertical heights of point E and point F are equal.

[0009] Furthermore, point A and point B, point A and point C, point A and point D, point B and point E, and point B and point F are respectively connected by arc transitions; the straight line between point A and point B is AB, and the angle between AB and the horizontal plane is greater than 0.4°; after the cultivation trough body is filled with water, the liquid level depth at point A is Ha, the liquid level depth at point B is Hb, and Hb / Ha≤1.4.

[0010] Furthermore, at least one boss is provided on the curved surface of the chassis, and the angle between the length direction of the boss and the direction from point A to point B is less than 10°; the upper surface of the boss is an arc surface, and a ridge is provided on the arc surface, and the length direction of the ridge is parallel to the length direction of the boss, and the ridges on different bosses are located at the same vertical height; the cross-sectional width of the ridge is r, and the diameter of the water suction port of the seedling tray is D, wherein r <D。

[0011] Furthermore, the water outlet is connected to the accommodating chamber through a first connecting port, the first connecting port is provided with a water retaining dam, a seedling insert and a hydroponic insert, and the first connecting port is also provided with a first drain port, a second drain port and a third drain port which are sequentially connected from bottom to top; the first drain port is embedded in the water retaining dam and is equal to the height of the water retaining dam; the bottom end of the first drain port is connected to point B; the size of the seedling insert matches the size of the second drain port; the hydroponic insert includes a horizontal piece and a vertical piece, the size of the horizontal piece matches the size of the second drain port, and the size of the vertical piece matches the size of the first drain port; the water inlet is larger than the first drain port; the first drain port is a V-shaped groove or an inverted trapezoidal groove.

[0012] Further, two first protrusions are provided on the first connecting port, and the two first protrusions are respectively located at two ends of the second drainage port, and second grooves matching the first protrusions are provided at two ends of the seedling plug, and third grooves matching the first protrusions are provided at two ends of the cross piece; or two first grooves are provided on the first connecting port, and the two first grooves are respectively located at two ends of the second drainage port, and second protrusions matching the first grooves are provided at two ends of the seedling plug, and third protrusions matching the first grooves are provided at two ends of the cross piece.

[0013] Furthermore, the cultivation trough body also includes a hydroponic planting plate placed above the accommodating cavity, and the hydroponic planting plate is provided with planting holes.

[0014] Furthermore, the hydroponic planting plate is composed of a first supporting plastic plate and a shading layer stacked in sequence; or the hydroponic planting plate is composed of a first supporting plastic plate, a shading layer, and a second supporting plastic plate stacked in sequence; or the hydroponic planting plate is made of a material containing a shading component.

[0015] Furthermore, the cultivation trough body also includes a side wall for surrounding and supporting the accommodating cavity, and the first connecting port is embedded in the side wall; the side wall is also provided with a first step for accommodating the edge of the seedling tray and a second step for supporting the hydroponic planting board, the first step is provided with a first recessed position for conveniently taking and placing the seedling tray, and the second step is provided with a second recessed position for conveniently taking and placing the hydroponic planting board; the height of the second step is H 17 , the height of the first step is H 16 The distance from the upper edge of the second spillway to point B is H2, the height of the dam is H1, and the height of the boss is H 13 , the height of the ridge is H 14 , where H 13 +H 14 16 <H2<H 17 .​

[0016] Furthermore, the cultivation trough body also includes a water inlet buffer platform, a water inlet cover plate for covering the water inlet, and a water outlet cover plate for covering the water outlet; the water inlet cover plate is provided with a water inlet cover plate flange and a connecting hole for connecting the water inlet pipe, and the connecting hole is located above the water inlet buffer platform; a second connecting port is also inlaid on the side wall, and the water inlet buffer platform is connected with the accommodating cavity through the second connecting port; the water inlet cover plate flange covers above the second connecting port; the water outlet cover plate is provided with a water outlet cover plate flange, and the water outlet cover plate flange covers above the third drain port.

[0017] The beneficial effect of the present invention is that: since the vertical height from point A to point B is gradually reduced, the vertical height from point A to point C is gradually reduced, the vertical height from point A to point D is gradually reduced, the vertical height from point C to point E is gradually reduced, the vertical height from point D to point F is gradually reduced, the vertical height from point E to point B is gradually reduced, and the vertical height from point F to point B is gradually reduced, that is, when applied, the vertical height of point A>the vertical height of point C>the vertical height of point E>the vertical height of point B, the vertical height of point A>the vertical height of point D>the vertical height of point F>the vertical height of point B, so, that is, when draining, compared with the cultivation trough with a flat bottom surface, the nutrient solution in the cultivation trough of the present invention can be quickly collected at the position of point B and flow to the water outlet by its own gravity, it is difficult to form water accumulation in the trough, the dry and wet periods in the trough are clear, and the drainage time is short. In addition, since the bottom surface in the trough is a curved surface, the anti-deformation effect is good, and it is less likely to deform after long-term use than the traditional cultivation trough. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] The specific structure of the present invention is described in detail below with reference to the accompanying drawings

[0019] Figure 1 It is a three-dimensional schematic diagram of the appearance of a cultivation trough body of a tidal cultivation trough of the present invention during hydroponic planting;

[0020] Figure 2 It is a detailed diagram of the structure of part of a tidal cultivation trough of the present invention when only the seedling insert is inserted into the cultivation trough body;

[0021] Figure 3 It is a detailed diagram of the structure of part of a tidal cultivation trough of the present invention when only the hydroponic insert is inserted into the cultivation trough body;

[0022] Figure 4 It is a first cross-sectional projection diagram of the main structure of a cultivation trough of a tidal cultivation trough of the present invention (the first cross-sectional diagram is perpendicular to the vertical plane passing through points A and B);

[0023] Figure 5A second cross-sectional projection diagram of a cultivation trough body part of a tidal cultivation trough of the present invention (the second cross-sectional diagram is a vertical plane passing through points A and B);

[0024] Figure 6 It is a schematic diagram of the positions of points A, B, C, D, E and F on the bottom surface of a cultivation trough body of a tidal cultivation trough of the present invention;

[0025] Figure 7 This is an example diagram of a tidal cultivation trough of the present invention applied to a vertical cultivation system (arrows indicate the direction of liquid flow);

[0026] Among them, 1-cultivation trough body, 11-water retaining dam, 12-first water discharge port, 13-boss, 14-convex ridge, 15-convex mouth, 16-first step, 17-second step; 2-hydroponic planting plate, 21-planting hole, 22-second recessed position; 3-water outlet cover plate, 31-water outlet cover plate flange; 4-water inlet cover plate, 41-connecting hole, 42 water inlet cover plate flange; 5-seedling insert, 6-hydroponic insert, 7-seedling tray, 71-hole tray; 8-water pipe, 9-water inlet buffer table. DETAILED DESCRIPTION

[0027] The key concept of the present invention is to design a curved surface with a gradually decreasing vertical height along the water flow direction, so that water can flow from the water inlet and the corner of the cultivation tank to the water outlet. Different inserts are used to adjust the cultivation tank to form different liquid level heights, which is suitable for multi-stage seedling cultivation and hydroponic planting.

[0028] In order to further discuss the feasibility of the concept of the present invention, specific implementation methods according to the technical content, structural features, achieved objectives and effects of the present invention are described in detail with reference to the accompanying drawings.

[0029] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0030] Example 1

[0031] See also Figure 1 as well as Figure 6A tidal cultivation trough comprises a cultivation trough body 1, wherein the cultivation trough body 1 comprises a water inlet, a water outlet and a containing cavity, wherein a bottom of the containing cavity is provided with a bottom plate curved surface, wherein the bottom plate curved surface is provided with points A, B, C, D, E and F; wherein point A is located beside the water inlet, points A, C and D are located on a first side of the bottom plate curved surface, and points C and D are located on both sides of point A; wherein point B is located beside the water outlet, points B, E and F are located on a second side of the bottom plate curved surface, and points E, B, C, D, E and F are located on a second side of the bottom plate curved surface. Point A and point F are located on both sides of point B; point C and point E are located on the third side of the chassis curved surface, and point D and point F are located on the fourth side of the chassis curved surface; on the chassis curved surface, the vertical height from point A to point B gradually decreases, the vertical height from point A to point C gradually decreases, the vertical height from point A to point D gradually decreases, the vertical height from point C to point E gradually decreases, the vertical height from point D to point F gradually decreases, the vertical height from point E to point B gradually decreases, and the vertical height from point F to point B gradually decreases. The vertical height of the water inlet is greater than the vertical height of point A, and the vertical height of the water outlet is less than or equal to the vertical height of point B.

[0032] From the above description, it can be seen that the beneficial effects of the present invention are: when applied, the vertical height of point A>the vertical height of point C>the vertical height of point E>the vertical height of point B, the vertical height of point A>the vertical height of point D>the vertical height of point F>the vertical height of point B, therefore, when draining, compared with the cultivation trough with a flat bottom surface, the nutrient solution in the cultivation trough of the present invention can be quickly gathered at the position of point B by its own gravity and flow to the outlet, it is difficult to form water accumulation in the trough, the dry and wet periods in the trough are clear, and the drainage time is short. In addition, because the bottom surface of the trough is a curved surface, the anti-deformation effect is good, and it is less likely to deform after long-term use than the traditional cultivation trough.

[0033] Example 2

[0034] Based on the above structure, please refer to Figure 1 , Figure 6 as well as Figure 7 , the orthographic projection of the chassis curved surface is a rectangle, the projections of points C, D, E and F are located at the four corners of the rectangle, and the projections of points A and B are located at the midpoints of the two opposite sides of the rectangle; the vertical heights of points C and D are equal, and the vertical heights of points E and F are equal. At this time, the shape of the cultivation trough is regular, which is conducive to improving the space utilization rate of cultivation. In actual application, at least two cultivation troughs are usually set in the vertical direction to form a vertical cultivation system, such as Figure 7As shown; in the vertical cultivation system, on the same cultivation trough, its water inlet is usually connected to the water supply pipe of the liquid supply trough or the water outlet pipe of the upper layer of cultivation trough, and its water outlet is usually connected to the cultivation trough of the next layer or the return pipe of the liquid supply trough through the water outlet pipe. Therefore, when the projections of point A and point B are respectively located at the midpoints of the opposite sides of the rectangle, the stability of the vertical cultivation system is improved, and when the nutrient solution flows into the cultivation trough, it can quickly flow to every corner of the bottom curved surface, so that the water absorption of the matrix in the hole tray 71 of the seedling tray 7 is more balanced.

[0035] Example 3

[0036] On the basis of the above structure, arc transition connections are respectively formed between point A and point B, between point A and point C, between point A and point D, between point B and point E, and between point B and point F; the straight line between point A and point B is AB, and the angle between AB and the horizontal plane is greater than 0.4°; after the cultivation trough body 1 is filled with water, the liquid level depth at point A is Ha, and the liquid level depth at point B is Hb, and Hb / Ha≤1.4. This structure can further improve the drainage effect, and also improve the liquid storage effect of the cultivation trough, so as to be suitable for use with seedling cultivation and hydroponics. In addition, this structure reduces the installation accuracy requirements of the cultivation trough, avoiding the problem of water accumulation not being drained cleanly due to an uneven installation surface.

[0037] Example 4

[0038] Based on the above structure, please refer to Figure 2 and Figure 4, at least one convex platform 13 is arranged on the chassis curved surface, and the included angle between the length direction of the convex platform 13 and the direction from point A to point B is less than 10°; the upper surface of the convex platform 13 is an arc surface, and convex ribs 14 are arranged on the arc surface. The cross-sectional width of the convex ribs 14 is less than the cross-sectional width of the convex platform 13. The length direction of the convex ribs 14 is parallel to the length direction of the convex platform 13, and the convex ribs on different convex platforms are located at the same vertical height; the cross-sectional width of the convex ribs 14 is r, and the diameter of the water absorption port of the seedling tray 71 of the seedling tray 7 is D, where r < D. The convex platform 13 not only plays a role in improving the stability of the bottom surface of the cultivation tank but also plays a role in improving the liquid drainage effect. The arc surface design of the convex platform 13 makes the nutrient solution not easily hang on the convex platform 13. The convex ribs on different convex platforms are located at the same vertical height, ensuring that the liquid level depth at which the seedling tray 71 of the seedling tray 7 is immersed is the same; and because the bottom surface of the accommodation cavity is the chassis curved surface, the heights of the convex platforms at different vertical height positions are also different. The design of the convex ribs 14 further raises the position of the seedling tray. On the one hand, the convex ribs 14 can reduce the contact area between the seedling tray and the convex platform 13. When feeding liquid, since the cross-sectional width of the convex ribs 14 is less than the diameter of the water absorption port of the seedling tray 71, the water absorption port of the seedling tray 71 of the seedling tray 7 will never fit with the supporting convex platform 13 and there is always a gap, making the water absorption efficiency of the substrate in the seedling tray 71 higher and more balanced, and the substrates in each seedling tray 71 evenly absorb the nutrient solution. When draining liquid, liquid residue can be effectively avoided, the dry and wet conditions in the tank are more distinct, and the liquid drainage time is further reduced; on the other hand, the air permeability in the cultivation tank is improved, making the roots of the plants in the seedling tray 7 not easily grow out of the seedling tray 71.

[0039] Embodiment 5

[0040] On the basis of the above structure, please refer to Figure 2 and Figure 3 , the water outlet is communicated with the accommodation cavity through a first connection port. The first connection port is provided with a water retaining dam 11, a seedling cultivation insert 5 and a hydroponic insert 6. The first connection port is also provided with a first water discharge port 12, a second water discharge port and a third water discharge port that are connected in sequence from bottom to top; the first water discharge port 12 is embedded in the water retaining dam 11 and has the same height as the water retaining dam 11; the bottom end of the first water discharge port 12 is connected to point B; the size of the seedling cultivation insert 5 matches the size of the second water discharge port; the hydroponic insert 6 includes a horizontal piece and a vertical piece. The size of the horizontal piece matches the size of the second water discharge port, and the size of the vertical piece matches the size of the first water discharge port 12; the water inlet is larger than the first water discharge port 12; the first water discharge port 12 is a V-shaped groove or an inverted trapezoidal groove.

[0041] Since the water inlet is larger than the first drain port 12 and the water outlet is lower than the water inlet, the liquid level in each position of the accommodating cavity of the entire cultivation trough (especially the position beside the water outlet and the water inlet) rises evenly. When the first drain port 12 is working, since the first drain port 12 is a V-shaped groove or an inverted trapezoidal groove, the closer to point B the water surface width is in the vertical direction, the smaller the water outlet flow of the upper cultivation trough (i.e., the water inlet flow of the lower cultivation trough) is greater than the water outlet flow of the lower cultivation trough. Therefore, in a vertical cultivation system with multiple layers of cultivation troughs, the cultivation trough on the upper layer will complete liquid storage one step ahead of the cultivation trough on the lower layer. When liquid storage is completed, the nutrient solution overflows from the second drain port or the third drain port and flows into the water outlet. In addition, after the liquid supply stops, the nutrient solution in each cultivation trough can be drained automatically under the action of gravity, and no water valve control is required. Therefore, in a vertical cultivation system with multi-layer cultivation troughs, multiple water pumps and water valves are not required to control each layer of cultivation troughs separately, thereby simplifying the control program of the vertical cultivation system and reducing costs.

[0042] Since different specifications (different heights) of seedling trays are required at different stages during the seedling raising process, the height of the seedling tray is different from the required seedling raising liquid level. When a seedling tray with a large hole tray is used, a higher liquid level is required, and a seedling raising insert can be used to raise the liquid level of the cultivation trough so that the liquid level of the cultivation trough is adapted to the requirements of the seedling raising tray to improve the water absorption efficiency of the matrix in the hole tray 71 of the seedling raising tray 7. Since the cultivation trough is adapted to seedling raising at different stages, the utilization rate of the cultivation trough is improved, and the purchase cost and storage cost of the cultivation trough are reduced.

[0043] During hydroponic cultivation, the liquid level required for cultivation is higher, and the liquid level needs to be maintained for a long time. A hydroponic insert can be used to raise the liquid level of the cultivation trough. Before the nutrient solution overflows over the hydroponic insert, water will not flow in and out at the same time. This can reduce the demand for water pump power and lift, and the cultivation trough is easier to fill with water, which is more conducive to hydroponic cultivation. After the hydroponic insert 6 is inserted and the cultivation trough is filled with water, Hb / Ha≤1.4. Since the cultivation trough can also adapt to hydroponic cultivation, the utilization rate of the cultivation trough is further improved, and the purchase cost and storage cost of the cultivation trough are further reduced.

[0044] Example 6

[0045] Based on the above structure, please refer to Figure 2 and Figure 4, the first connection port is also provided with two first protrusions, the two first protrusions are respectively located at the two ends of the second drain port, the two ends of the seedling plug 5 are provided with second grooves matching the first protrusions, and the two ends of the cross piece are provided with third grooves matching the first protrusions; or the first connection port is also provided with two first grooves, the two first grooves are respectively located at the two ends of the second drain port, the two ends of the seedling plug 5 are provided with second protrusions matching the first grooves, and the two ends of the cross piece are provided with third protrusions matching the first grooves. By designing the structure of the protrusions and grooves, the liquid level adjustment process of the cultivation trough is simplified.

[0046] Example 7

[0047] Based on the above structure, please refer to Figure 1 The cultivation tank body 1 also includes a hydroponic planting plate 2 placed above the accommodating cavity, and the hydroponic planting plate 2 is provided with a planting hole 21. During hydroponic cultivation, the planting block containing the plant is placed in the planting hole 21. During hydroponic cultivation, the liquid level needs to be maintained for a long time, which is easy to breed algae. Therefore, the hydroponic planting plate 2 is used to cover the accommodating cavity, which can reduce the light exposure of the nutrient solution and effectively reduce the speed of algae growth in the nutrient solution.

[0048] Example 8

[0049] On the basis of the above structure, the hydroponic planting board 2 is composed of a first supporting plastic board and a shading layer stacked in sequence; or the hydroponic planting board 2 is composed of a first supporting plastic board, a shading layer, and a second supporting plastic board stacked in sequence; or the hydroponic planting board 2 is made of a material containing a shading component. The addition of the shading layer or the material containing the shading component requires that the shading rate of the manufactured hydroponic planting board 2 reaches more than 95%, which can effectively inhibit the growth of algae. The material containing the shading component is a commercially available product, which is integrally formed through an injection molding process to form a hydroponic planting board 2, and this type of hydroponic planting board has better comprehensive performance than the hydroponic planting board containing the shading layer.

[0050] Example 9

[0051] On the basis of the above structure, the cultivation trough body 1 also includes a side wall for surrounding and supporting the accommodating cavity, and the first connecting port is embedded in the side wall; the side wall is also provided with a first step 16 for accommodating the edge of the seedling tray 7 and a second step 17 for supporting the hydroponic planting plate, the first step 16 is provided with a first recessed position for conveniently taking and placing the seedling tray 7, and the second step 17 is provided with a second recessed position 22 for conveniently taking and placing the hydroponic planting plate 2; the height of the second step 17 is H 17 , the height of the first step 16 is H 16 The distance from the upper edge of the second spillway to point B is H2, the height of the dam 11 is H1, and the height of the boss 13 is H13 The height of the ridge 14 is H 14 , where H 13 +H 14 16 <H2<H 17 .

[0052] The edge of the seedling tray 7 is located above the first step 16, and is shielded by the edge of the seedling tray 7, reducing excessive light from entering the bottom of the cultivation tank, which helps to inhibit the growth of algae in the cultivation tank. When the seedling insert 5 is needed, the liquid level will spread to the first step 16 (but the liquid level height is less than H 17 ), however, the tidal matrix seedling is watered with nutrient solution once every three days, and each time does not exceed one hour. In addition, the flow of nutrient solution and the large area of ​​nutrient solution are in a light-shielding state. Therefore, after spreading to the first step 16, although it is locally and briefly irradiated, the nutrient solution will not easily grow algae. The edge of the hydroponic planting plate 2 falls on the second step 17, and the second step 17 provides support for the hydroponic planting plate 2, and the edge of the hydroponic planting plate 2 completely blocks the light from shining into the bottom of the cultivation tank, effectively inhibiting the growth of algae in the cultivation tank that maintains the liquid level for a long time. The number of the first recessed positions and the number of the second recessed positions 22 can be set according to the size of the cultivation tank, and the number is preferably a multiple of 2, which is convenient for two-handed operation; more preferably, the even number of first recessed positions is mirror-symmetrical about the vertical plane where points A and B are located, and the even number of second recessed positions 22 is mirror-symmetrical about the vertical plane where points A and B are located. Preferably, the first recessed position and the second recessed position 22 are close together to enhance the sense of order and aesthetics of the cultivation tank. Furthermore, due to the first recessed position and the second recessed position 22, the interior of the accommodating cavity is connected with the exterior of the cultivation trough body 1, thereby ensuring that the accommodating cavity is ventilated.

[0053] Example 10

[0054] Based on the above structure, please refer to Figure 5 , Figure 4 as well as Figure 7 The cultivation trough body 1 also includes a water inlet buffer platform 9, a water inlet cover plate 4 for covering the water inlet, and a water outlet cover plate 3 for covering the water outlet; the water inlet cover plate 4 is provided with a water inlet cover plate flange 42 and a connecting hole 41 for connecting the water inlet pipe, and the connecting hole 41 is located above the water inlet buffer platform 9; a second connecting port is also inlaid on the side wall, and the water inlet buffer platform 9 is connected with the accommodating cavity through the second connecting port; the water inlet cover plate flange 42 covers above the second connecting port; the water outlet cover plate 3 is provided with a water outlet cover plate flange 31, and the water outlet cover plate flange 31 covers above the third drain port.

[0055] ​The nutrient solution flowing in from the water inlet pipe first falls on the water inlet buffer platform 9, then passes through the second connection port, and finally enters the accommodating chamber, so that the water flow in the accommodating chamber is smooth and there is no splashing of water. Preferably, the water inlet buffer platform 9, the bottom of the second connection port, and point A are located on the same horizontal plane. In the vertical cultivation system, the water inlet of the corresponding next-layer cultivation trough is directly below the water outlet of the upper cultivation trough, so a connecting hole 41 is provided on the water inlet cover plate 4, and a protruding mouth 15 is provided below the water outlet, so that the two layers of cultivation troughs are conveniently connected together through the water pipe 8. The setting of the water inlet cover plate 4 and the water inlet cover plate flange 42, the water outlet cover plate 3 and the water outlet cover plate flange 31 further covers the waterway in the entire vertical cultivation system, and can achieve the effect of no light for the nutrient solution during hydroponics, and can completely avoid the growth of algae in the cultivation trough. In addition, the setting of the water inlet cover plate 4 and the water outlet cover plate 3 facilitates the later maintenance of the waterway of the vertical cultivation system (such as blockage and other problems).

[0056] In summary, the present invention provides a tidal cultivation trough in which water is difficult to accumulate, the dry and wet periods in the trough are distinct, and the drainage time is short; it can adapt to the seedling cultivation needs at different stages, and can also be used for hydroponic cultivation, reducing the cultivation trough purchase cost and storage cost of the planting company; during the seedling cultivation and cultivation process, the waterway is smooth and algae are not easy to grow in the waterway, effectively reducing the planting maintenance cost and nutrient solution investment cost; the pump valve requirement is small, the power consumption is low, and the investment cost is effectively reduced; the anti-deformation effect is good.

[0057] Here, the first, second... only represent the distinction in their names, and do not represent any difference in their importance and position.

[0058] The above descriptions are merely embodiments of the present invention and are not intended to limit the patent scope of the present invention. Any equivalent structure or equivalent process transformation made using the contents of the present invention specification and drawings, or directly or indirectly applied in other related technical fields, are also included in the patent protection scope of the present invention.

Claims

1. A tidal cultivation trough, comprising a cultivation trough body, wherein the cultivation trough body comprises a water inlet, a water outlet and a containing cavity, characterized in that: A chassis curved surface is provided at the bottom of the accommodating cavity, and point A, point B, point C, point D, point E and point F are provided on the chassis curved surface; point A is located next to the water inlet, point A, point C and point D are located on the first side of the chassis curved surface, and point C and point D are located on both sides of point A; point B is located next to the water outlet, point B, point E and point F are located on the second side of the chassis curved surface, and point E and point F are located on both sides of point B; point C and point E are located on the third side of the chassis curved surface, and point D and point F are located on the fourth side of the chassis curved surface; on the chassis curved surface, the vertical height from point A to point B gradually decreases, the vertical height from point A to point C gradually decreases, the vertical height from point A to point D gradually decreases, the vertical height from point C to point E gradually decreases, the vertical height from point D to point F gradually decreases, and the vertical height from point E to point B gradually decreases. The vertical height from point F to point B gradually decreases; the water outlet is connected to the accommodating chamber through a first connecting port, a protruding mouth is arranged below the water outlet, the first connecting port is provided with a water retaining dam, a seedling insert and a hydroponic insert, and the first connecting port is also provided with a first drain port, a second drain port and a third drain port which are connected sequentially from bottom to top; the first drain port is embedded in the water retaining dam and is equal to the height of the water retaining dam; the bottom end of the first drain port is connected to point B; the size of the seedling insert matches the size of the second drain port; the hydroponic insert includes a horizontal piece and a vertical piece, the size of the horizontal piece matches the size of the second drain port, and the size of the vertical piece matches the size of the first drain port; the water inlet is larger than the first drain port; the first drain port is a V-shaped groove or an inverted trapezoidal groove.

2. The tidal cultivation trough according to claim 1, characterized in that: The orthographic projection of the chassis curved surface is a rectangle, the projections of points C, D, E and F are respectively located at the four corners of the rectangle, and the projections of points A and B are respectively located at the midpoints of the opposite sides of the rectangle; the vertical heights of points C and D are equal, and the vertical heights of points E and F are equal.

3. The tidal cultivation trough according to claim 2, characterized in that: Point A and point B, point A and point C, point A and point D, point B and point E, and point B and point F are respectively connected by arc transition; the straight line between point A and point B is AB, and the angle between AB and the horizontal plane is greater than 0.4°; after the cultivation trough body is filled with water, the liquid level depth at point A is Ha, the liquid level depth at point B is Hb, and Hb / Ha≤1.

4.

4. The tidal cultivation trough according to claim 3, characterized in that: At least one boss is provided on the curved surface of the chassis, and the angle between the length direction of the boss and the direction from point A to point B is less than 10°; the upper surface of the boss is an arc surface, and a ridge is provided on the arc surface, and the length direction of the ridge is parallel to the length direction of the boss, and the ridges on different bosses are located at the same vertical height; the cross-sectional width of the ridge is r, and the diameter of the water suction port of the seedling tray is D, wherein r <D。 5. The tidal cultivation trough according to claim 4, characterized in that: Two first protrusions are also provided on the first connecting port, and the two first protrusions are respectively located at the two ends of the second drain port, and second grooves matching the first protrusions are provided at both ends of the seedling plug, and third grooves matching the first protrusions are provided at both ends of the cross piece; or two first grooves are also provided on the first connecting port, and the two first grooves are respectively located at the two ends of the second drain port, and second protrusions matching the first grooves are provided at both ends of the seedling plug, and third protrusions matching the first grooves are provided at both ends of the cross piece.

6. The tidal cultivation trough according to claim 5, characterized in that: The cultivation trough body also includes a hydroponic planting plate placed above the accommodating cavity, and the hydroponic planting plate is provided with planting holes.

7. The tidal cultivation trough according to claim 6, characterized in that: The hydroponic planting plate is composed of a first supporting plastic plate and a shading layer stacked in sequence; or the hydroponic planting plate is composed of a first supporting plastic plate, a shading layer, and a second supporting plastic plate stacked in sequence; or the hydroponic planting plate is made of a material containing a shading component.

8. The tidal cultivation trough according to claim 7, characterized in that: The cultivation trough body also includes a side wall for surrounding and supporting the accommodating cavity, and the first connecting port is embedded in the side wall; the side wall is also provided with a first step for accommodating the edge of the seedling tray and a second step for supporting the hydroponic planting board, the first step is provided with a first recessed position for conveniently taking and placing the seedling tray, and the second step is provided with a second recessed position for conveniently taking and placing the hydroponic planting board; the height of the second step is H 17 , the height of the first step is H 16 The distance from the upper edge of the second spillway to point B is H2, the height of the dam is H1, and the height of the boss is H 13 , the height of the ridge is H 14 , where H 13 +H 14 16 <H2<H 17 .​ 9. The tidal cultivation trough according to claim 8, characterized in that: The cultivation trough body also includes a water inlet buffer platform, a water inlet cover plate for covering the water inlet, and a water outlet cover plate for covering the water outlet; the water inlet cover plate is provided with a water inlet cover plate flange and a connecting hole for connecting the water inlet pipe, and the connecting hole is located above the water inlet buffer platform; a second connecting port is also inlaid on the side wall, and the water inlet buffer platform is connected with the accommodating cavity through the second connecting port; the water inlet cover plate flange covers above the second connecting port; the water outlet cover plate is provided with a water outlet cover plate flange, and the water outlet cover plate flange covers above the third drain port.

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