Vegetable planting tray overturning mechanism

Abstract

The invention provides a vegetable planting tray overturning mechanism, and belongs to the technical field of agricultural product planting, the vegetable planting tray overturning mechanism comprises a conveying mechanism, the conveying mechanism comprises a roller conveying device, and a positioning device is arranged below a roller; the rotating mechanism and the conveying mechanism are adjacently arranged, the rotating mechanism comprises a base and a supporting column rotationally installed on the base, and a turnover mechanism is installed in the supporting column; the turnover mechanism comprises a lifting structure, a turnover hinge frame is rotationally installed on one side of the lifting structure, and a connecting shaft, a first turnover rod and a second turnover rod are fixedly installed on the side, away from the lifting structure, of the turnover hinge frame; according to the scheme, the operation of continuously and automatically tipping the planting plate is realized, residual organic matters and vegetable roots in the planting plate can be effectively removed, the sanitary condition in a vegetable factory is improved, the cleaning process is simplified, the working efficiency is improved, the manual intervention is reduced, and the operation cost is reduced.

Description

Technical Field

[0001] The invention relates to the technical field of agricultural product planting technology, and in particular to a vegetable planting tray tipping mechanism. Background Art

[0002] The vegetable factory is an agricultural model that uses high-tech means to grow vegetables indoors. By precisely controlling growth factors such as light, temperature, and humidity, it achieves efficient vegetable production all year round, regardless of seasons and climate. This model increases the yield per unit area, reduces the demand for water resources and land, and reduces the use of pesticides and fertilizers, and can provide fresh, healthy, and pollution-free vegetable products.

[0003] The cultivation process of the vegetable factory can be roughly divided into several steps: 1. Seed selection and disinfection; 2. Sowing in special seedling trays; 3. Transplanting plant seedlings into vegetable planting trays for growth; 4. Harvesting finished vegetables directly from the planting trays, packaging and distribution. In this process, the planting tray is one of the core components of the vegetable factory. It is not only the basic platform for plant growth, responsible for carrying plants and delivering nutrient solution, but also a key tool for realizing automated management and precision agriculture.

[0004] After the vegetables are harvested, a large amount of organic matter and vegetable roots will remain in the planting tray. If these residues are not removed in time, they will become breeding grounds for pathogens and pests, seriously affecting the sanitary conditions inside the vegetable factory. Summary of the invention

[0005] The object of the present invention is to provide a vegetable planting tray tipping mechanism to solve the problems raised in the above-mentioned background technology.

[0006] To achieve the above object, the present invention provides the following technical solutions: A vegetable planting tray tipping mechanism, comprising: A conveying mechanism, the conveying mechanism comprising a roller conveying device, and a positioning device is arranged under the roller; A rotating mechanism, wherein the rotating mechanism and the transmission mechanism are arranged adjacent to each other, the rotating mechanism comprises a base and a support column rotatably mounted on the base, and a flipping mechanism is installed inside the support column; The flip mechanism comprises a lifting structure, a flip hinge is rotatably mounted on one side of the lifting structure, a connecting shaft, a first flip rod and a second flip rod are fixedly mounted on the side of the flip hinge away from the lifting structure, a limit frame is arranged on one side of the flip hinge to cooperate with the flip hinge to flip, a triangular seat is fixedly mounted on the limit frame to cooperate with the movement of the flip mechanism, a translation track is arranged at the bottom of the limit frame, and the limit frame and the translation track are slidably connected; A rotating handle that rotates synchronously with the flip hinge is installed on the side of the lifting structure away from the limiting frame, and a limiting rod for limiting the rotating handle is fixedly installed on the side wall. The limiting handle is fixedly installed at the bottom of the lifting structure, and the rotating handle and the limiting handle are connected by a spring; The clamping mechanism is fixedly connected to the connecting shaft, and the clamping mechanism includes a cross frame, a fixed clamping plate is installed in the middle of the cross frame, a first clamping plate and a second clamping plate are installed at both ends of the cross frame respectively, and a translation mechanism for driving the first clamping plate and the second clamping plate to translate is installed inside the cross frame.

[0007] As a further improvement, the positioning device includes a baffle fixedly connected to the cylinder and its output shaft, and the baffle is positioned in the gap between adjacent rollers, the gap is located between the first clamping plate and the fixed clamping plate, and is adjacent to the fixed clamping plate.

[0008] As a further improvement, there are two flipping mechanisms, which are relatively arranged inside the support column. Avoidance grooves for the connecting shaft to pass through are opened on both sides of the support column, and the connecting shafts are fixedly connected with clamping mechanisms.

[0009] As a further improvement, the limit frame includes a sliding seat, with a first column and a second column connected at both ends of the sliding seat, and a first limit plate and a second limit plate are respectively installed on the top of the first column and the second column to cooperate with the flipping of the flip hinge, and a gap is left between the first limit plate and the second limit plate for the flip hinge to pass through.

[0010] As a further improvement, the triangular seat is installed on the top surface of the sliding seat, the two sides of the triangular seat are equal, and the triangular seat is equidistant from the first column and the second column.

[0011] As a further improvement, the rotating handle and the flip hinge are arranged opposite to each other, and the end of the rotating handle is far away from the first flip rod and the second flip rod, and is equidistant from the first flip rod and the second flip rod.

[0012] As a further improvement, the limit rods are installed on both sides of the rotation axis of the turning handle and are located below the turning handle.

[0013] As a further improvement, the side wall of the cross frame is provided with a moving groove for the first clamping plate and the second clamping plate to move in translation.

[0014] As a further improvement, buffer pads are fixedly installed on corresponding sides of the fixed clamping plate, the first clamping plate and the second clamping plate.

[0015] The beneficial effects of the above technical solution of the present invention are as follows: 1. This solution realizes the continuous and automatic tipping of the planting tray through components such as the transmission mechanism, the rotation mechanism, the flipping mechanism and the clamping mechanism, which can effectively remove residual organic matter and vegetable roots, avoid becoming a breeding ground for pathogens and pests, and significantly improve the sanitary conditions inside the vegetable factory.

[0016] 2. The tipping process of this solution simplifies the subsequent cleaning process, improves work efficiency, reduces manual intervention, reduces the use of cleaning agents, and reduces operating costs. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] By reading the following detailed description with reference to the accompanying drawings, the above and other objects, features and advantages of the exemplary embodiments of the present invention will become readily understood. In the accompanying drawings, several embodiments of the present invention are shown in an exemplary and non-limiting manner, and the same or corresponding reference numerals represent the same or corresponding parts, wherein: Figure 1 The overall three-dimensional structure diagram provided for Example 1 of the present invention; Figure 2 A structural diagram of a positioning device provided in Example 1 of the present invention; Figure 3 The three-dimensional structure of the flipping mechanism provided in Example 1 of the present invention Figure 1 ; Figure 4 For the present invention Figure 3 A magnified view of A is provided; Figure 5 A front view showing the operation of the flipping mechanism provided in Example 1 of the present invention; Figure 6 The three-dimensional structure of the flipping mechanism provided in Example 1 of the present invention Figure 2 ; Figure 7 A rear view of the operation of the flip mechanism provided in Example 1 of the present invention; Figure 8 This is a structural diagram of the transmission device provided in Example 2 of the present invention.

[0018] Description of reference numerals: 1. Conveying mechanism; 11. Roller conveying device; 12. Positioning device; 121. Cylinder; 122. Baffle; 123. Fixed block; 13. Platform; 14. Water spraying device; 15. Water collecting tank; 16. Conveyor belt; 2. Rotating mechanism; 21. Base; 22. Support column; 221. Avoidance groove; 3. Turning mechanism; 31. Lifting structure; 32. Turning hinge; 321. Connecting shaft; 322. First turning rod; 323. First turning rod Two flip rods; 33, limit frame; 331, sliding seat; 332, first column; 333, second column; 334, first limit plate; 335, second limit plate; 34, triangular seat; 35, translation track; 36, turning handle; 37, limit rod; 38, limit handle; 39, spring; 4, clamping mechanism; 41, horizontal frame; 42, fixed clamp plate; 43, first clamp plate; 44, second clamp plate; 45, movable groove; 46, buffer pad. DETAILED DESCRIPTION

[0019] 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. Those skilled in the art should know that the embodiments described below are part of the embodiments of the present disclosure, rather than all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative work are within the scope of protection of the present invention.

[0020] In the description of the present invention, it should be noted that the terms "upper", "lower", "left", "right", "inner", "outer", "top / bottom" and the like indicate positions or positional relationships based on the positions or positional relationships shown in the drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific position, be constructed and operated in a specific position, and therefore cannot be understood as limiting the present invention. In addition, the terms "first" and "second" are used for descriptive purposes only, and cannot be understood as indicating or implying relative importance.

[0021] Working principle: Planting tray clamping: The planting tray opens upward and enters the workstation through the roller conveyor 11. At this time, the baffle 122 is in an extended state, which plays a role in positioning the planting tray. Subsequently, the lifting structure 31 drives the clamping mechanism 4 to descend to the planting tray, the baffle 122 descends, and the first clamping plate 43 moves toward the fixed clamping plate 42 synchronously to clamp the planting tray. After the clamping is completed, the lifting structure 31 drives the clamping mechanism 4 to rise, and the baffle 122 also rises under the action of the cylinder 121. At the same time, the support column 22 drives the clamping mechanism 4 to rotate 180°.

[0022] Rotation and flipping: After the rotation is completed, the clamping mechanism 4 continues to rise to the top. At this time, the second flip rod 323 contacts the second limit plate 335, so that the flip hinge 32 rotates around the connecting shaft 321 under the action of the second limit plate 335. At this time, the spring 39 is stretched. When the flip hinge 32 rotates 90°, the spring 39 reaches its longest length and begins to shrink, driving the flip hinge 32 to continue rotating until the handle 36 contacts the limit rod 37 and stops. In this process, the flip hinge 32 drives the clamping mechanism 4 to flip through the connecting shaft 321, completing the flipping and dumping of the planting tray. After flipping, the support column 22 continues to rotate 180°, and the lifting structure 31 drives the clamping mechanism 4 to descend.

[0023] Release and reset: After the rotation is completed, the clamping mechanism 4 continues to drop to the bottom. At this time, the second flip rod 323 first contacts the triangular seat 34 and applies a thrust to it to slide in the direction of the second column 333. The first limit plate 334 after movement is located directly above the first flip rod 322. The positions of the flipped first clamping plate 43 and the second clamping plate 44 are swapped. At this time, the second clamping plate 44 moves toward the fixed clamping plate 42 to clamp the planting tray, while the first clamping plate 43 moves away from the fixed clamping plate 42, and the flipped planting tray is placed on the conveying mechanism 1 for further transportation, and the opening of the planting tray faces downward to facilitate the subsequent flushing operation.

[0024] Secondary rotation and flipping: After the second clamping plate 44 completes clamping, the device repeats the above rotation and flipping operations. The difference is that when rising, the first flip rod 322 contacts the first limiting plate 334 and drives the flip hinge 32 to flip around the connecting shaft 321, and when the clamping mechanism 4 descends to the bottom, the first flip rod 322 first contacts the triangular seat 34 and causes the second limiting plate 335 to slide to the top of the second flip rod 323.

[0025] Circular work: The above steps constitute a complete cycle, and the subsequent devices repeat the cycle to ensure a continuous and stable planting tray processing process.

[0026] The present solution provides a vegetable planting tray tipping mechanism, which realizes efficient processing of the planting tray, reduces the need for manual intervention, ensures the continuity and smoothness of the processing process, and improves production efficiency.

[0027] After introducing the basic principle of the present invention, various non-limiting embodiments of the present invention are described in detail below. The number of any element in the drawings is for illustration and not for limitation, and any naming is only for distinction and does not have any limiting meaning.

[0028] The principle and spirit of the present invention are explained in detail below with reference to several representative embodiments of the present invention.

[0029] Embodiment 1 of a vegetable planting tray tipping mechanism provided by the present invention: See Figure 1-Figure 7 A vegetable planting tray tipping mechanism comprises: a transmission mechanism 1, a rotation mechanism 2, a flipping mechanism 3 and a clamping mechanism 4.

[0030] like Figure 1-Figure 2 As shown, the conveying mechanism 1 includes a roller conveying device 11, and the roller conveying device 11 is fixedly installed with a platform 13 for setting circuits or auxiliary components, and the platform 13 is located below the roller. A positioning device 12 is fixedly installed on the top surface of the platform 13, and the positioning device 12 includes a cylinder 121 and a baffle 122 connected to its output shaft. The cylinder 121 and the baffle 122 are fixedly connected by a fixing block 123, and the baffle 122 is positioned in the gap between adjacent rollers, and the gap is located between the first clamping plate 43 and the fixed clamping plate 42, and is adjacent to the fixed clamping plate 42; when the device is running, the planting tray is transported on the roller conveying device 11, and the cylinder 121 drives the baffle 122 to rise or fall synchronously by controlling the extension and contraction of the output shaft. The baffle 122 rises to position the planting tray, and releases the positioning when it falls.

[0031] like Figure 1 As shown, the rotating mechanism 2 is arranged adjacent to the transmission mechanism 1, and includes a base 21, on which a support column 22 is rotatably mounted through a bearing, and the base 21 and the support column 22 are driven by a motor, which is installed inside the base 21 or the support column 22, and can control the support column 22 to rotate 180° each time around the central axis. Two flipping mechanisms 3 are installed inside the support column 22, and the two flipping mechanisms 3 are arranged oppositely and have the same structure. The connecting shafts 321 of the flipping mechanisms 3 set oppositely are located at the outermost side, and the two opposite side walls of the support column 22 are provided with avoidance grooves 221 for the connecting shafts 321 of the flipping mechanisms 3 to pass through.

[0032] like Figure 3-Figure 4 As shown, the flip mechanism 3 includes a lifting structure 31, which is used to drive the flip hinge 32 and the clamping mechanism 4 to rise or fall synchronously. The flip hinge 32 is rotatably mounted on one side of the lifting structure 31, and a connecting shaft 321, a first flip rod 322, and a second flip rod 323 are fixedly mounted on one side of the flip hinge 32. The axis of the connecting shaft 321 coincides with the axis of rotation of the flip hinge 32. The first flip rod 322 and the second flip rod 323 are respectively arranged on two oblique sides of the connecting shaft 321, and the distances to the connecting shaft 321 are equal.

[0033] A limit frame 33 is provided on one side of the flip hinge 32 to cooperate with the flip hinge 32 to flip. The limit frame 33 includes a sliding seat 331. The two ends of the sliding seat 331 are connected to a first column 332 and a second column 333. A first limit plate 334 and a second limit plate 335 that cooperate with the flip hinge 32 are installed on the top of the first column 332 and the second column 333, respectively. A gap is left between the first limit plate 334 and the second limit plate 335. The limit frame 33 is in the same vertical plane as the connecting shaft 321, the first flip rod 322 and the second flip rod 323, and the first column 332 and the second column 333 are respectively located on both sides of the flip hinge 32. The flip hinge 32 can flip and move up and down through the gap between the first limit plate 334 and the second limit plate 335 under the action of the lifting structure 31. A translation track 35 is provided at the bottom of the limit frame 33, and the limit frame 33 is slidably connected to the translation track 35 through a sliding seat 331; a triangular seat 34 is fixedly installed on the top of the sliding seat 331, and the two sides of the triangular seat 34 are equal, and the triangular seat 34 is equidistant from the first column 332 and the second column 333. By applying force to one side of the triangular seat 34, the limit frame 33 can be driven to slide on the translation track 35.

[0034] like Figure 5 As shown, during the rising process of the flip hinge 32, the second flip rod 323 contacts the second limiting plate 335, so that the flip hinge 32 rotates around the connecting shaft 321 under the action of the second limiting plate 335, and completes the flipping with the cooperation of the spring 39. At this time, the flip hinge 32 can smoothly pass through the gap between the first limiting plate 334 and the second limiting plate 335 when descending; when the flip hinge 32 continues to descend to the bottom, the second flip rod 323 and the connecting shaft 321 contact the left side of the triangular seat 34 in turn and apply a thrust to slide rightward thereto, and the limiting frame 33 slides on the translation track 35, and the first limiting plate 334 after translation is located directly above the first flip rod 322; When the flip hinge 32 rises again, the first flip rod 322 contacts the first limit plate 334 and drives the flip hinge 32 to flip around the connecting shaft 321. When the flip hinge 32 drops to the bottom again, the first flip rod 322 and the connecting shaft 321 contact the right side of the triangular seat 34 in turn and apply a leftward sliding thrust to it, so that the second limit plate 335 slides to just above the second flip rod 323. The above steps constitute a complete cycle of flipping the flip hinge 32.

[0035] like Figure 6As shown, a rotating handle 36 that rotates synchronously with the flip hinge frame 32 is installed on the side of the lifting structure 31 away from the limiting frame 33, and a damper (not shown in the figure) is installed between the rotating handle 36 and the lifting structure 31. The end of the rotating handle 36 is away from the first flip rod 322 and the second flip rod 323, and is equidistant from the first flip rod 322 and the second flip rod 323. Two limiting rods 37 for limiting the rotating handle 36 are also fixedly installed on the side wall. The two limiting rods 37 are arranged horizontally, installed on both sides of the rotation axis of the rotating handle 36, and are located below the rotating handle 36. A limiting handle 38 is also fixedly installed at the bottom of the lifting structure 31, and the rotating handle 36 and the limiting handle 38 are connected by a spring 39. like Figure 7 As shown, when the flip hinge 32 rises and contacts the limit frame 33, the flip hinge 32 starts to rotate under the action of the limit frame 33, and the turning handle 36 rotates synchronously, and the spring 39 is stretched. When the flip hinge 32 rotates 90°, the turning handle 36 and the limit handle 38 are collinear. At this time, the spring 39 is in the longest stretched state, and then the spring 39 releases its elastic potential energy and contracts, driving the flip hinge 32 to continue rotating until the turning handle 36 contacts the limit rod 37; the limit rod 37 is designed to limit the rotation of the turning handle 36 and make the turning handle 36 finally in a horizontal position, and the setting of the damper is conducive to the smooth and slow release of the elastic potential energy of the spring 39, thereby ensuring the continuous and stable rotation of the flip hinge 32.

[0036] like Figure 1 As shown, the clamping mechanism 4 is fixedly connected to the flipping mechanism 3 through the connecting shaft 321, and the clamping mechanism 4 includes a horizontal frame 41, a fixed clamping plate 42 is installed in the middle of the horizontal frame 41, and a first clamping plate 43 and a second clamping plate 44 are slidably installed at both ends of the horizontal frame 41. Buffer pads 46 are fixedly installed on the corresponding sides of the fixed clamping plate 42, the first clamping plate 43 and the second clamping plate 44, respectively. A translation mechanism for driving the first clamping plate 43 and the second clamping plate 44 to translate is installed inside the horizontal frame 41. In this embodiment, the translation mechanism is a cylinder, and a moving groove 45 for the first clamping plate 43 and the second clamping plate 44 to translate is opened on the side wall of the horizontal frame 41; In this embodiment, the clamping mechanism 4 consists of a first clamping plate 43 and a second clamping plate 44 that alternately clamp or release the planting tray. When clamping, the first clamping plate 43 or the second clamping plate 44 moves toward the fixed clamping plate 42, and when releasing, the first clamping plate 43 or the second clamping plate 44 moves away from the fixed clamping plate 42. The provision of the buffer pad 46 is beneficial for providing buffering during the clamping process, and the texture provided on the buffer pad 46 can increase the clamping friction during clamping.

[0037] In this solution, two sets of flipping mechanisms 3 and clamping mechanisms 4 that are relatively set up are conducive to realizing the continuous operation of the solution; when the solution is running, the clamping mechanism 4 on the side of the conveying mechanism 1 descends, and the first clamping plate 43 approaches the fixed clamping plate 42 to complete the clamping of the planting tray. At the same time, the second clamping plate 44 moves away from the fixed clamping plate 42 to complete the release of the overturned planting tray, and the released planting tray opens downward. In addition, with the descent of the clamping mechanism 4 on the side of the conveying mechanism 1, the clamping mechanism 4 on the other side rises, and the overturning of the planting tray is completed with the flipping mechanism 3, and the vegetable roots and organic matter in the planting tray fall into the collection frame below through the overturning. Subsequently, the support column 22 rotates 180° around its own central axis, and the above operation is repeated.

[0038] Embodiment 2 of a vegetable planting tray tipping mechanism provided by the present invention: The main difference between it and Example 1 is: The clamping mechanism 4 is detachably connected to the connecting shaft 321. This design method facilitates replacement of different clamping mechanisms 4 to adapt to planting trays of different shapes and specifications.

[0039] Embodiment 3 of a vegetable planting tray tipping mechanism provided by the present invention: The main difference between it and Example 1 is: like Figure 8 As shown, the rollers at the rear section of the roller conveyor 11 are replaced with two synchronously rotating conveyor belts 16, the conveyor belts 16 are relatively arranged on the inner side wall of the rear section of the roller conveyor 11, a water spraying device 14 is arranged below the conveyor belt 16, and a water collecting tank 15 is installed on the platform 13 below the water spraying device 14; The clamping mechanism 4 releases the flipped planting tray, at which time the planting tray is placed with its opening facing downward, and the edges of the two opposite side walls of the planting tray fall on the conveyor belts 16 on both sides respectively, and are transported by the conveyor belts 16; at this time, the water spraying device 14 can be automatically controlled to further rinse the residue in the planting tray for subsequent cleaning steps, and the flushing water and residue are diverted to the water collecting tank 15 and collected and processed by the water collecting tank 15.

[0040] Although this specification has shown and described a plurality of embodiments of the present invention, it is obvious to those skilled in the art that such embodiments are provided by way of example only. Those skilled in the art will think of many changes, modifications and alternatives without departing from the thought and spirit of the present invention. It should be understood that in the process of practicing the present invention, various alternatives to the embodiments of the present invention described herein may be adopted. The attached claims are intended to define the scope of protection of the present invention, and therefore cover the modular composition, equivalent or alternatives within the scope of protection of these claims.

Claims

1. A vegetable planting tray tipping mechanism, characterized in that: include: A conveying mechanism (1), the conveying mechanism (1) comprising a roller conveying device (11), a positioning device (12) being arranged below the roller; A rotating mechanism (2), the rotating mechanism (2) and the conveying mechanism (1) being arranged adjacent to each other, the rotating mechanism (2) comprising a base (21) and a support column (22) rotatably mounted on the base (21), the support column (22) having a turning mechanism (3) mounted inside; A flip mechanism (3), the flip mechanism (3) comprising a lifting structure (31), a flip hinge (32) being rotatably mounted on one side of the lifting structure (31), a connecting shaft (321), a first flip rod (322) and a second flip rod (323) being fixedly mounted on a side of the flip hinge (32) away from the lifting structure, a limiting frame (33) being arranged on one side of the flip hinge (32) for cooperating with the flip hinge (32) for flipping, a triangular seat (34) being fixedly mounted on the limiting frame (33) for cooperating with the flip mechanism (3) for movement, a translation track (35) being arranged at the bottom of the limiting frame (33), and the limiting frame (33) and the translation track (35) being slidably connected; A rotating handle (36) that rotates synchronously with the flip hinge frame (32) is installed on the side of the lifting structure (31) away from the limiting frame (33), and a limiting rod (37) for limiting the rotating handle (36) is also fixedly installed on the side wall. A limiting handle (38) is fixedly installed on the bottom of the lifting structure (31), and the rotating handle (36) and the limiting handle (38) are connected via a spring (39); A clamping mechanism (4), the clamping mechanism (4) being fixedly connected to the connecting shaft (321), the clamping mechanism (4) comprising a cross frame (41), a fixed clamping plate (42) being installed in the middle of the cross frame (41), a first clamping plate (43) and a second clamping plate (44) being installed at both ends of the cross frame (41), and a translation mechanism for driving the first clamping plate (43) and the second clamping plate (44) to translate being installed inside the cross frame (41).

2. A vegetable planting tray tipping mechanism according to claim 1, characterized in that: The positioning device (12) comprises a cylinder (121) and a baffle (122) fixedly connected to its output shaft, wherein the baffle (122) is positioned in a gap between adjacent rollers, the gap being located between a first clamping plate (43) and a fixed clamping plate (42) and being adjacent to the fixed clamping plate (42).

3. The vegetable planting tray tipping mechanism according to claim 1, characterized in that: There are two flipping mechanisms (3), which are arranged opposite to each other inside the support column (22). Both sides of the support column (22) are provided with avoidance grooves (221) for the connection shaft (321) to pass through. The connection shaft (321) is fixedly connected to a clamping mechanism (4).

4. The vegetable planting tray tipping mechanism according to claim 1, characterized in that: The limiting frame (33) comprises a sliding seat (331), the two ends of the sliding seat (331) are connected to a first column (332) and a second column (333), the tops of the first column (332) and the second column (333) are respectively mounted with a first limiting plate (334) and a second limiting plate (335) for cooperating with the flipping hinge (32) to flip, and a gap is left between the first limiting plate (334) and the second limiting plate (335) for the flipping hinge (32) to pass through.

5. A vegetable planting tray tipping mechanism according to claim 1 or 4, characterized in that: The triangular seat (34) is installed on the top surface of the sliding seat (331), the two sides of the triangular seat (34) are equal, and the triangular seat (34) is equidistant from the first column (332) and the second column (333).

6. The vegetable planting tray tipping mechanism according to claim 1, characterized in that: The rotating handle (36) and the flip hinge (32) are arranged opposite to each other, and the end of the rotating handle (36) is far away from the first flip rod (322) and the second flip rod (323), and is equidistant from the first flip rod (322) and the second flip rod (323).

7. The vegetable planting tray tipping mechanism according to claim 1, characterized in that: The limiting rods (37) are mounted on both sides of the rotating shaft of the rotating handle (36) and are located below the rotating handle (36).

8. The vegetable planting tray tipping mechanism according to claim 1, characterized in that: The side wall of the cross frame (41) is provided with a moving groove (45) for the first clamping plate (43) and the second clamping plate (44) to move in translation.

9. The vegetable planting tray tipping mechanism according to claim 1, characterized in that: Buffer pads (46) are fixedly mounted on corresponding sides of the fixed clamping plate (42), the first clamping plate (43) and the second clamping plate (44).

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