A planting tray conveying trolley and a planting tray conveying system

Abstract

The application discloses a planting disc conveying trolley and a planting disc conveying system, and belongs to the technical field of conveying equipment. The planting disc conveying trolley comprises a trolley body, the trolley body comprises a base, a first side plate, a second side plate and a third side plate, wherein the first side plate, the second side plate and the third side plate are perpendicularly fixed on the base and surround to form a bearing space capable of accommodating at least one planting disc; at least two supporting parts are arranged on the base along the length direction of the trolley body, and are used for supporting the planting disc, so that a gap is formed between the bottom of the planting disc and the base; the middle part of the third side plate is opened, so that the side of the base towards the opening protrudes and extends to form an integrated connecting part, at least one slot-shaped hollow opening is formed in the vertical direction of the base, and the connecting hole at the bottom of the slot-shaped hollow opening can be connected with a driving assembly.

Description

Technical Field

[0001] This invention belongs to the field of transportation equipment technology, and more specifically, relates to a planting tray conveying trolley and a planting tray conveying system, which is particularly suitable for spiral towers. Background Technology

[0002] Hydroponics, as a special cultivation method for forage grasses, is not limited by land resources. It can utilize non-arable land space to significantly increase yield per unit area through vertical planting, thus saving arable land. At the same time, its growth cycle is controllable and significantly shortened, enabling batch continuous production and stable supply throughout the year, solving the seasonal and climatic constraints of traditional planting.

[0003] The applicant has been committed to the research and development of hydroponic forage technology. For example, in patent CN113273485A, the applicant discloses a hydroponic plant production system. In this application, a spirally extending support part is set on the main body of the production tower. The spiral support part forms a multi-layer structure in the vertical direction of the production tower body, which can make full use of the vertical space and greatly improve the space utilization rate. In patent CN114831010A, a seven-day forage planting and production equipment is disclosed. This application can realize the rapid maturation of forage in seven days. As another example, in patent CN118556600A, a hydroponic forage production system is disclosed. In this application, by optimizing the structure of the production system, fully automated production can be achieved from seed soaking and germination to forage growth and harvesting.

[0004] In large-scale crop cultivation, planting trays are commonly used to cultivate crops, and conveying equipment is used to move and transport the planting trays to coordinate with planting processes such as nutrient solution spraying and lighting. Currently, the traditional method of conveying planting trays is to place the planting trays directly on a conveyor belt. This method has many drawbacks: 1) The conveyor belt is prone to vibration during operation, causing the planting trays to slip and sway, affecting the stable transport of the planting trays, and may even cause the planting trays to tip over and damage the crops; 2) Traditional conveyor belts can only transport planting trays in a single row, resulting in low transport efficiency, which is difficult to meet the production needs of large-scale planting.

[0005] Meanwhile, during the planting process, nutrient solution needs to be sprayed onto the crops in the planting tray. A large amount of useful salts in the nutrient solution will enter the gap between the planting tray and the conveying equipment during the spraying process. Under the dual effects of the smooth operation of the conveying equipment and the illumination of the lights above the planting tray, the salts are prone to clump together in the gap, which will stick the planting tray and the conveying equipment together. This not only affects the placement and removal of the planting tray, but also contaminates the conveying equipment and increases the difficulty of cleaning the equipment. Summary of the Invention

[0006] The problem to be solved To address at least some of the problems existing in the prior art, this invention proposes a planting tray conveying trolley and a planting tray conveying system, which solves the problem of planting trays easily clumping and sticking together due to salt in traditional conveying methods.

[0007] Technical solution To solve the above problems, the technical solution adopted by the present invention is as follows: The planting tray conveying trolley of the present invention includes a trolley body, the trolley body including a base, a first side plate, a second side plate and a third side plate, wherein the first side plate, the second side plate and the third side plate are perpendicularly fixed to the base and enclose a carrying space capable of accommodating at least one planting tray. At least two support parts are provided at intervals along the length of the trolley body on the base for supporting the planting tray, so that a gap is formed between the bottom of the planting tray and the base. An opening is provided in the middle of the third side plate, so that the base extends outward toward the opening to form an integral connecting part. The connecting part has at least one slotted hollow opening along the vertical direction of the base, and can be connected to the drive component through the connecting hole at the bottom of the slotted hollow opening.

[0008] The planting tray conveying system of this invention utilizes a connecting part to connect with the drive assembly, thereby achieving synchronous movement between the trolley body and the drive assembly. Simultaneously, the planting trays are confined within the carrying space of the trolley body, and multiple rows of planting trays can be arranged within this carrying space. Compared to the traditional conveying method of directly placing the planting trays on the conveyor belt, the conveying system of this embodiment not only achieves stable conveying of the planting trays, reducing the likelihood of tray slippage due to conveyor belt vibration, but also allows for multi-row conveying, thus improving production efficiency.

[0009] In one possible embodiment of the present invention, the base and the connecting part are at a certain angle α, where α is 1°-2°, preferably 1°, 1.5°, or 2°, so that the base is inclined relative to the connecting part. This angle α provides kinetic energy for the flow of nutrient solution or water, thereby facilitating the drainage of excess nutrient solution or water in the planting tray.

[0010] In one possible embodiment of the present invention, a partition plate is provided on the lower end face of the base, which divides the lower end face of the base into several weight-reducing cavities. The outer edges of these cavities are flush with the lower end face of the connecting part. At the same time, the design of these cavities can reduce the weight of the trolley body. The partition plate can enhance the strength of the planting tray conveying trolley. In particular, when the planting tray conveying trolley turns, it not only bears the tension of the drive component and the centrifugal force, but also the weight it bears increases from 5 kg-6 kg to 10 kg-13 kg as the crops in the planting tray continue to grow. Therefore, the partition plate can improve the strength of the planting tray conveying trolley and ensure its reliability.

[0011] In one possible embodiment of the present invention, the partition plates are evenly distributed along the length of the trolley body. Since the bottom surface of the base and the end face of the connecting part form an angle α, the volume of the cavity gradually decreases along the tilting direction of the trolley body.

[0012] In one possible embodiment of the present invention, the support portion divides the bearing space into several areas, and multiple guide portions are provided on the base in each area. The tail end of each guide portion is provided with a drain outlet, which may be circular or square, etc. The guide portions can direct the nutrient solution or water dripping from the planting tray, allowing it to quickly collect at the drain outlet and be discharged, further reducing water accumulation on the bottom surface of the base and preventing the seeds in the planting tray from becoming soaked and rotting.

[0013] In one possible embodiment of the present invention, the arrangement direction of the multiple planting trays within the carrying space is perpendicular to the conveying direction of the trolley body. It should be noted that this perpendicularity is not a geometric right angle; a certain degree of offset is permissible, as long as the drive assembly can synchronously convey multiple rows of planting trays via the trolley body. Simultaneously, the size of the planting trays is fitted with a clearance to the size of the carrying space, preventing the planting trays from wobbling or slipping on the trolley body while allowing sufficient space for air circulation and nutrient solution drainage.

[0014] In one possible embodiment of the invention, the support is mainly designed to create a gap between the bottom of the planting tray and the bottom surface, facilitating drainage and air circulation to prevent the seeds in the planting tray from becoming waterlogged and rotting. However, if the support is too high, it increases the height of the conveying trolley, placing higher demands on the design of the spiral tower's layer height H; simultaneously, the distance between the planting tray and the outer edge of the trolley body is too small, which could cause the planting tray to slip off the trolley body.

[0015] Therefore, the top surface height of the support is designed to be 1 / 4 to 2 / 3 of the height of the trolley body, effectively limiting and blocking the planting tray. The height design of the support takes into account both gap reservation and planting tray limitation: ensuring that there is sufficient gap between the bottom of the planting tray and the bottom surface of the base to facilitate drainage and air circulation; and effectively limiting and blocking the planting tray to avoid the overall height of the conveying trolley being too large due to the support being too high, which would place too high requirements on the layer height H design of planting equipment such as the spiral tower, while also preventing the planting tray from slipping out due to being too close to the outer edge of the trolley body.

[0016] In one possible embodiment of the invention, at least one set of rollers is disposed below the trolley body, wherein the number of rollers in one set is two, and the rollers are symmetrically fixed on the base. The rollers reduce the frictional resistance between the trolley body and the bearing surface, making the movement of the transport trolley smoother.

[0017] In one possible embodiment of the present invention, an arc-shaped plate is formed inward along the opening, the arc-shaped plate bends toward the second side plate, the arc-shaped plate can transport the air entering through the opening to both sides, while the central part can be air-intake.

[0018] The present invention also provides a planting tray conveying system, including a planting tray conveying trolley and a drive component for driving the planting tray conveying trolley to move. The drive component is connected to the connection hole of the planting tray conveying trolley to realize synchronous movement of the trolley body and the drive component.

[0019] Beneficial effects Compared with the prior art, the beneficial effects of the present invention are as follows: (1) The planting tray conveying trolley of the present invention forms a carrying space by enclosing the first side plate, the second side plate and the third side plate, and adopts a design of gap matching between the planting tray and the carrying space, combined with the limiting function of the support part, effectively avoiding the shaking and slippage of the planting tray during the conveying process. Compared with the traditional conveyor belt conveying method, the conveying stability is improved; at the same time, the carrying space can hold multiple rows of planting trays, realizing the synchronous conveying of multiple rows of planting trays, effectively improving production efficiency; (2) The present invention creates a gap between the bottom of the planting tray and the bottom surface of the base through the support part, and introduces air in conjunction with the opening of the third side plate, which can blow away the residual nutrient solution in the gap, reduce the accumulation of salts, and effectively solve the problem of salt clumping and sticking to the planting tray and the trolley body; at the same time, the design of the guide part and the inclined base can drain excess nutrient solution and water, prevent the seeds in the planting tray from soaking and rotting, and ensure the normal growth of crops. (3) The present invention reduces the weight of the trolley body and reduces driving energy consumption by setting a partition plate on the bottom surface of the base to form a cavity. The partition plate strengthens the structural strength of the trolley, enabling it to withstand the tension of the drive components, centrifugal force, and the increased weight of the planting tray as the crop grows (from 5 kg-6 kg to 10 kg-13 kg), ensuring the strength and reliability of the planting tray conveyor trolley under turning, heavy load and other working conditions. At the same time, the cavity can increase friction during cleaning, improving the convenience of cleaning. (4) The present invention makes reasonable design of the height of the support part, taking into account the dual requirements of drainage, air circulation and planting tray limit, avoiding the problem of excessive spiral tower height requirements and easy slippage of planting tray caused by excessively high support part, so as to make the structural design of planting tray conveying trolley reasonable. (5) The conveying system of the present invention is connected to the connecting part of the planting tray conveying trolley through the drive component, so as to realize the synchronous movement of the planting tray conveying trolley. With the structural design of the planting tray conveying trolley, the overall conveying process is stable and suitable for planting tray conveying scenarios of large-scale crop planting. Attached Figure Description

[0020] Figure 1 This is a three-dimensional structural diagram of the planting tray conveying trolley of the present invention; Figure 2 This is a front view structural schematic diagram of the planting tray conveying trolley of the present invention; Figure 3 for Figure 2 Sectional view along line AA; Figure 4 for Figure 2 Sectional view along line BB; Figure 5 This is a bottom view of the planting tray conveying trolley of the present invention. Figure 6 This is a schematic diagram of the planting tray conveying trolley and drive assembly of the present invention. Figure 7 for Figure 6 The right view; Figure 8 This is a schematic diagram of the assembly structure of the planting tray conveying trolley of the present invention; Figure 9 This is a schematic diagram showing the usage state of the planting tray conveying trolley of the present invention; Figure 10 This is a front view schematic diagram of the planting tray conveying trolley according to Embodiment 2 of the present invention; Figure 11 This is a three-dimensional structural diagram of the planting tray conveying trolley according to Embodiment 2 of the present invention; In the picture: 100. Cart body; 110. Base; 111. Support; 1111. Top surface; 112. Divider plate; 113. Flow guide; 114. Drain outlet; 115. Lower end face; 120. First side plate; 130. Second side plate; 140. Third side plate; 141. Opening; 150. Load-bearing space; 160. Connecting part; 161. Groove-shaped hollow opening; 162. Connecting hole; 170. Arc-shaped plate; 200. Rollers; 300. Drive assembly; 310. Drive chain; 320. Chain guide rail; 330. Wear-resistant sleeve; 400. Planting trays; 500. Air emission outlet. Detailed Implementation

[0021] To further understand the content of this invention, a detailed description of the invention will be provided in conjunction with the accompanying drawings.

[0022] In the description of this invention, it should be noted that the terms "center," "upper," "lower," "left," "right," "vertical," "horizontal," "inner," and "outer," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are used only for the convenience of describing this invention and for 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. Therefore, they should not be construed as limitations on this invention. Furthermore, the terms "first," "second," and "third" are used for descriptive purposes only and should not be construed as indicating or implying relative importance.

[0023] The present invention will be further described below with reference to specific embodiments.

[0024] Example 1 like Figures 1 to 9 As shown, the planting tray conveying trolley in this embodiment includes a trolley body 100. The trolley body 100 includes a base 110, a first side plate 120, a second side plate 130, and a third side plate 140. The first side plate 120, the second side plate 130, and the third side plate 140 are fixed perpendicularly to each other on the base 110, forming a carrying space 150 that can accommodate three rows of planting trays 400. Crops such as barley, oats, sorghum, rye, alfalfa, and black wheat can be placed in the planting trays. The size of the planting trays 400 is slightly smaller than that of the carrying space 150, and the two are fitted with a gap. The arrangement direction of the three rows of planting trays 400 is perpendicular to the conveying direction of the trolley body 100, and an offset of less than 0.5° is allowed.

[0025] The planting tray conveying trolley of the present invention forms a carrying space by enclosing a first side plate, a second side plate, and a third side plate. It adopts a design with a gap fit between the planting tray and the carrying space, and with the limiting function of the support, it effectively avoids the shaking and slippage of the planting tray during the conveying process. Compared with the traditional conveyor belt conveying method, the conveying stability is greatly improved. At the same time, the carrying space can hold multiple rows of planting trays, realizing the synchronous conveying of multiple rows of planting trays, effectively improving production efficiency.

[0026] exist Figure 2 , Figure 3 and Figure 4 In the middle, the base 110 has three support parts 111 spaced apart along the length of the trolley body 100. The support parts 111 are cuboid protrusions and are integrally formed with the base 110. The height of the top surface 1111 of the support parts 111 is 1 / 2 of the height of the trolley body 100. The support parts 111 support the planting tray 400, so that a 5mm gap is formed between the bottom of the planting tray 400 and the base 110.

[0027] Combination Figure 9 As shown, in order to effectively limit and block the planting tray, the height design of the support unit takes into account both gap reservation and planting tray limitation: ensuring that there is sufficient gap between the bottom of the planting tray and the bottom surface of the base to facilitate drainage and air circulation; and effectively limiting and blocking the planting tray to avoid the overall height of the conveyor trolley being too large due to the support unit being too high, thus avoiding excessive requirements on the layer height H design of planting equipment such as the spiral tower, while also preventing the planting tray from slipping out due to being too close to the outer edge of the trolley body.

[0028] Furthermore, such as Figure 2 As shown, the three support parts 111 divide the bearing space 150 into four areas. Each area has four guide parts 113 integrally formed on the bottom surface of the base 110. The guide parts 113 are arc-shaped protrusions that extend to the edge. A circular drain outlet 114 is provided at the tail end of the guide part 113, which penetrates the base 110.

[0029] In this embodiment, as Figure 1 and Figure 6 As shown, a rectangular opening 141 is provided in the middle of the third side plate 140. The base 110 extends outward from the side facing the opening 141 to form an integral connecting part 160. The connecting part 160 has two parallel slot-shaped hollow openings 161 along the vertical direction of the base 110. A circular connecting hole 162 is provided at the bottom of each slot-shaped hollow opening 161. The connecting hole 162 is used to cooperate with the connecting shaft of the drive assembly 300.

[0030] It should be emphasized that, regardless of whether the planting tray 400 is placed in the first or second direction, in order to avoid the planting tray 400 from shaking or slipping on the trolley body 100, the size of the planting tray 400 is slightly smaller than that of the carrying space 150. This can generally be understood as a clearance fit.

[0031] The forage in the planting tray 400 needs to be sprayed with nutrient solution to ensure its growth. However, the nutrient solution contains a large amount of useful salts. For example, the nutrient solution is composed of the following components: calcium nitrate tetrahydrate 52.8-53.8g; magnesium sulfate heptahydrate 20.0-21.0g; potassium dihydrogen phosphate 0.8-1.5g; ferrous sulfate heptahydrate 0.6-0.9g; zinc sulfate heptahydrate 0.12-0.23g; manganese sulfate tetrahydrate 0.15-0.25g; copper sulfate pentahydrate 0.050-0.15g; boric acid 0.015-0.025g; sodium chloride 0. 0.02-0.04g; potassium sulfate 16.08-18.08g; ammonium nitrate 3.33-3.53g. The nutrient solution is stored in a nutrient solution storage tank. The system's liquid pump delivers the nutrient solution to each layer of the spiral structure of the rotating tower through the supply pipe. After the nutrient solution enters each layer of the spiral structure, it is sprayed evenly onto the surface of the pasture in the form of small droplets through the spray head above the planting tray 400, once every 2 hours. Each spray lasts for half a minute, and 1 liter of nutrient solution is sprayed on the area covered by each spray nozzle to fully saturate the pasture.

[0032] These salts, sprayed with nutrient solution, enter the gap between the planting tray 400 and the carrying space 150. The planting tray conveyor trolley operates smoothly, and with the illumination from the lights above the planting tray 400 (as shown in patent CN114831010A), the salts clump together in the gap, adhering to the planting tray 400 and the trolley body 100. To address this, the inventors, through extensive analysis and research, ensured the strength of the connecting part 160 while incorporating an opening 141 in the middle of the third side plate 140. Combined with the air exhaust outlets 500 of each layer (requiring a large amount of air to dilute the oxygen concentration), the opening 141 allows some air to be blown into the gap between the planting tray 400 and the carrying space 150. This air carries away some of the residual nutrient solution, thus reducing the likelihood of clumping and adhesion.

[0033] In this embodiment, Figure 1 and Figure 9In the middle of the third side plate 140, the opening 141 has multiple functions: on the one hand, combined with the air exhaust outlet 500 set up in the planting process to dilute the oxygen concentration, external air can be blown into the gap between the planting tray 400 and the carrying space 150 through the opening 141, blowing away some of the residual nutrient solution in the gap, reducing the accumulation of salts, thereby effectively reducing the possibility of salts clumping and sticking to the planting tray 400 and the trolley body 100; on the other hand, the design of the opening 141 also facilitates the cleaning of dirt in the gap, improving the cleaning convenience of the planting tray.

[0034] Furthermore, the base 110 and the connecting part 160 form an angle α, where α = 1.5°, causing the base 110 to be inclined relative to the connecting part 160. A partition plate 112 is welded and fixed to the lower end face 115 of the base 110. The partition plates 112 are evenly distributed along the length of the trolley body 100, dividing the base 110 into several cavities. The outer edge of each cavity is flush with the lower end face of the connecting part 160. Because the bottom surface of the base 110 is inclined, the volume of the cavities gradually decreases along the inclination direction of the trolley body 100. Figure 4 The arrow in the diagram indicates the direction. This can be understood as the height h2 gradually decreasing to the height h1 along the direction indicated by the arrow, where the value represented by h2 is greater than the value represented by h1.

[0035] The aforementioned partition plate 112 can enhance the strength of the planting tray conveyor trolley. In particular, when the planting tray conveyor trolley turns, it not only bears the tension of the drive component and the centrifugal force, but also, as the crops in the planting tray continue to grow, the weight it bears increases from 5 kg-6 kg to 10 kg-13 kg. Therefore, the aforementioned partition plate can improve the strength of the planting tray conveyor trolley and ensure its reliability.

[0036] During field use, it was found that disassembling the planting tray conveyor trolley for cleaning the surface and internal dirt, the cavity design of which increases the friction between the conveyor trolley and the bearing surface, thus facilitating cleaning.

[0037] exist Figure 5 and Figure 7 In this design, a set of rollers 200 is provided below the trolley body 100. Each set of rollers 200 includes two rollers 200, which are symmetrically welded and fixed to both ends of the base 110. The rollers 200 are made of polyurethane to reduce frictional resistance and noise during movement. Furthermore, the rollers 200 can be designed as omnidirectional wheels for easy steering.

[0038] exist Figure 6In this structure, the connecting part 160 and the base 110 are an integral structure, and the connecting part 160 has a slotted hollow opening 161. While ensuring the connection strength between the connecting part 160 and the drive component 300, the weight of the trolley body 100 is further reduced. At the same time, the slotted hollow opening 161 also facilitates the alignment and installation of the connecting hole 162 and the drive component 300.

[0039] In addition to reducing weight, the cavity on the bottom surface of the base 110 also increases the friction between the trolley body 100 and the bearing surface when the planting tray conveyor trolley is disassembled and cleaned, making it less likely for the trolley body 100 to slip during the cleaning process and improving the convenience of the cleaning operation.

[0040] like Figure 6 and Figure 8 As shown, this embodiment also provides a planting tray conveying system including the above-mentioned planting tray conveying trolley and a drive component 300 for driving the planting tray conveying trolley to move. The drive component 300 is connected to the connection hole 162 of the planting tray conveying trolley to realize the synchronous movement of the trolley body 100 and the drive component 300.

[0041] like Figure 6 and Figure 8 As shown, the drive assembly 300 of this embodiment includes a drive chain 310, a wear-resistant sleeve 330, and a chain guide rail 320. A guide groove is formed on the chain guide rail 320, and the wear-resistant sleeve 330 is placed in the guide groove. The drive chain 310 moves along the wear-resistant sleeve 330. The drive chain 310 includes a chain plate and a connecting shaft connecting the chain plate.

[0042] In the planting process, such as Figure 9 As shown, the air exhaust outlet, designed to dilute the oxygen concentration, blows air towards the planting tray conveyor trolley. Some of the air is blown into the gap between the planting tray 400 and the bearing space 150 through the opening 141 of the third side plate 140 (as shown by the arrow in the figure, which indicates the direction of the air). Taking full advantage of the inclined setting of the base, the air blown in downwards is blocked and then moves upwards, thereby blowing away some of the residual nutrient solution in the gap and minimizing the accumulation of salts. The excess nutrient solution in the planting tray 400 is guided by the guide part 113 and collected to the drain outlet 114 for discharge. Under the action of the 1.5° inclined angle of the bottom surface of the base 110, the nutrient solution flows quickly to the drain outlet 114, with no water residue.

[0043] After a period of use, the planting tray conveying trolley in this embodiment is disassembled for cleaning. The cavity on the bottom surface of the base 110 increases the friction between the trolley body 100 and the ground. During the cleaning process, the trolley body 100 remains stable, which facilitates cleaning the gap between the planting tray 400 and the bearing space 150, as well as the bottom surface of the base 110. After cleaning, the planting tray conveying trolley is reinstalled into the drive assembly 300 and can be put into use again.

[0044] Example 2 like Figure 10 and Figure 11 As shown, the structure of this embodiment is basically the same as that of embodiment 1. The difference is that an arc-shaped plate 170 is formed inward along the opening 141. The arc-shaped plate 170 bends toward the second side plate 130. The arc-shaped plate 170 can transport the air entering through the opening to both sides, while the central part can be air-intake.

[0045] In practical use, it was found that even with full consideration of air intake at opening 141, a small amount of nutrient solution still adhered to the two sides of the trolley body 100. In this embodiment, an arc-shaped plate is used. This arc-shaped plate can be a circular arc plate with a uniform radius of curvature and its center facing outwards. The air intake entering through opening 141 will be guided by the arc-shaped plate 170, dispersing the airflow into two directions (…). Figure 10 As shown by the middle arrow, the air intake will form a vortex along the central axis of the vehicle body 100; similarly, air will enter along both sides of the vehicle body 100, thereby reducing the problem of nutrient solution adhesion on both sides.

[0046] In this embodiment, the height of the arc plate 170 is the same as the height of the support part 111. The bottom of the arc plate 170 is serrated, which can discharge some of the nutrient solution and avoid liquid accumulation at the arc plate 170, while not affecting the guiding effect of the air intake.

[0047] The diameter of the arc plate 170 can be slightly larger than the width of the opening 141. With the center of the connecting part 160 as the center, the above-mentioned diameter size can be selected so that the arc plate 170 can extend to both sides, increasing the air intake guide surface.

[0048] The present invention and its embodiments have been described above illustratively. This description is not restrictive, and the figures shown are only one embodiment of the present invention; the actual structure is not limited thereto. Therefore, if those skilled in the art are inspired by this description and design similar structures and embodiments without departing from the spirit of the invention, such designs should fall within the protection scope of the present invention.

Claims

1. A planting tray conveying trolley, comprising a trolley body (100), characterized in that, The trolley body (100) includes a base (110), a first side plate (120), a second side plate (130), and a third side plate (140), wherein the first side plate (120), the second side plate (130), and the third side plate (140) are perpendicularly fixed to the base (110) and enclose a carrying space (150) capable of accommodating at least one planting tray (400). At least two support parts (111) are provided on the base (110) at intervals along the length direction of the trolley body (100) to support the planting tray (400) so that a gap is formed between the bottom of the planting tray (400) and the base (110). The third side plate (140) has an opening (141) in the middle, so that the base (110) extends outward toward the opening (141) to form an integral connecting part (160). The connecting part (160) has at least one slotted opening (161) along the vertical direction of the base (110), and can be connected to the drive assembly (300) through the connecting hole (162) at the bottom of the slotted opening (161).

2. The planting tray conveying trolley according to claim 1, characterized in that, The base (110) and the connecting part (160) are at a certain angle α, where α is 1-2°, so that the base (110) is inclined relative to the connecting part (160).

3. The planting tray conveying trolley according to claim 2, characterized in that, The lower end face (115) of the base (110) is provided with a partition plate (112), which divides the bottom surface into several weight-reducing cavities. The outer edge of the cavity is flush with the lower end face of the connecting part (160).

4. The planting tray conveying trolley according to claim 3, characterized in that, The partition plates (112) are evenly distributed along the length of the trolley body (100), and the bottom surface of the base (110) and the end face of the connecting part (160) form an angle α, so that the volume of the cavity gradually decreases along the tilt direction of the trolley body (100).

5. The planting tray conveying trolley according to claim 4, characterized in that, The support (111) divides the bearing space (150) into several regions. In each region, the base (110) is provided with multiple guides (113), and the tail of the guide (113) is provided with a drain (114); the drain (114) is circular or square in shape.

6. The planting tray conveying trolley according to claim 5, characterized in that, The arrangement of multiple planting trays (400) within the carrying space (150) is perpendicular to the conveying direction of the trolley body (100).

7. The planting tray conveying trolley according to claim 6, characterized in that, The height of the top surface (1111) of the support part (111) is designed to be 1 / 4 to 2 / 3 of the height of the trolley body (100), so that the bottom of the planting tray (400) and the bottom surface of the base (110) form a sufficient gap.

8. The planting tray conveying trolley according to claim 8, characterized in that, It also includes at least one set of rollers (200) disposed below the trolley body (100), the number of rollers (200) being two, and the rollers (200) being symmetrically fixed on the base (110).

9. The planting tray conveying trolley according to claim 1, characterized in that, An arc-shaped plate (170) is formed inward along the opening (141), and the arc-shaped plate (170) bends toward the second side plate (130).

10. A planting tray conveying system, characterized in that, The device includes a planting tray conveying trolley as described in any one of claims 1-9 and a drive assembly (300) for driving the planting tray conveying trolley to move. The drive assembly (300) is connected to the connection hole (162) of the planting tray conveying trolley to achieve synchronous movement of the trolley body (100) and the drive assembly (300).

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