Greenhouse seedbed conveying and placement device and seedbed

Abstract

This utility model provides a seedbed conveying and placement device for greenhouses, including multiple sets of parallel seedbed placement racks. At the input end of each set of seedbed placement racks, a seedbed conveyor rack for conveying seedbeds is horizontally arranged. Each seedbed conveyor rack is equipped with a lifting mechanism. The multiple sets of seedbed placement racks are arranged side-by-side along their width, so that the seedbed conveyor racks at the input end of each set of seedbed placement racks are connected end-to-end, forming a linear conveyor rack group. The first end of the conveyor rack group is the input end of the seedbed. The conveyor rack group can sequentially convey seedbeds from its input end to the input end of each seedbed placement rack. The lifting mechanism can lift the seedbeds conveyed on each seedbed conveyor rack upwards, so that the bottom of the seedbed is flush with the input end of its corresponding seedbed placement rack. Each set of seedbed placement racks is equipped with a pushing mechanism, which can sequentially push the lifted seedbeds onto each seedbed placement rack for placement.

Description

Technical Field

[0001] This utility model relates to the field of seedbed conveying and placement technology, specifically to a seedbed conveying and placement device and seedbed for greenhouses. Background Technology

[0002] In the field of modern agricultural facilities, greenhouses, as the core venues for precision planting and off-season cultivation, have become a key carrier for ensuring the efficient supply of agricultural products. The seedling stage, as the starting point of the crop growth cycle, directly impacts the subsequent planting results in terms of efficiency and quality. Among these, seedling trays, as important equipment in modern horticultural factory seedling production processes, bear the basic function of cultivating seedlings; seedbeds, as the platform supporting the seedling trays, are a crucial infrastructure for early seedling cultivation, and the transfer of seedling trays mainly relies on seedbeds. Therefore, the convenience of seedbed transfer plays a vital role in improving agricultural production efficiency. With the continuous advancement of agricultural technology, the equipment configuration and planting layout within greenhouses are becoming increasingly refined and diversified, and the demand for large-scale planting continues to rise, placing ever higher demands on the mobility of seedbeds.

[0003] To improve the convenience of moving and placing seedbeds and enhance the mobility and efficiency of transportation, rolling seedbed placement frames have been widely adopted in existing technologies. For example, the "Rolling Conveyor Type Vegetable Seedling Bed" disclosed in patent announcement number CN103650979B uses a sliding bed surface composed of multiple rolling round rods arranged on the bed frame. The rotation of the rolling round rods realizes the transportation and movement of the seedbed, which to some extent saves the physical labor of manually moving the seedbed. However, in actual use, this type of rolling conveyor vegetable seedbed still mainly relies on manual labor to move the seedbed onto the sliding bed surface. The placement and transportation of the seedbed can only be completed with manual assistance, resulting in a low degree of automation. With the accelerated development of the greenhouse industry in my country, which is becoming more industrialized, intensive, and modernized, the scale of seedling production is also constantly increasing. The drawbacks of this manual seedbed placement method are becoming increasingly prominent. Specifically, because manual seedbed placement is inefficient, time-consuming, and labor-intensive, it requires a certain amount of labor to complete the placement work, increasing labor costs and greatly limiting the operational efficiency of greenhouse seedling production. Utility Model Content

[0004] In view of this, it is necessary to provide a seedbed conveying and placement device for greenhouses to solve the technical problems of low efficiency, time-consuming and labor-intensive manual placement of seedbeds in the existing technology.

[0005] It is also necessary to provide a seedbed.

[0006] The technical solution adopted by this utility model to solve its technical problem is:

[0007] A seedbed conveying and placement device for greenhouses includes multiple sets of seedbed placement racks arranged parallel to each other within the greenhouse. Each set of seedbed placement racks has a horizontally arranged conveyor rack for transporting seedbeds at its input end. Each conveyor rack is equipped with a lifting mechanism. The multiple sets of seedbed placement racks are arranged side-by-side along their width, so that the conveyor racks at the input ends of each set are connected end-to-end, forming a linear conveyor rack group. The first end of each conveyor rack group serves as the input end of the seedbed. The conveyor rack group can sequentially transport the seedbeds to be placed from its input end to the input end of each seedbed placement rack. The lifting mechanism can lift the seedbeds transported on each conveyor rack upwards, making the bottom of the seedbed flush with the input end of its corresponding seedbed placement rack. Each set of seedbed placement racks is equipped with a pushing mechanism, which can sequentially push the lifted seedbeds onto its respective seedbed placement rack for placement.

[0008] Preferably, each set of seedbed placement frames includes several base supports and two parallel support rods. The two support rods extend along the width or length of the greenhouse and are spaced apart. The two support rods are at the same height and their ends are aligned. The several base supports are spaced apart along the length of the support rods at the lower ends of the support rods to support the two support rods. The upper surfaces of the two support rods are the bearing surfaces for placing the seedbeds. One end of the two support rods is the aforementioned input end, and the other end is the output end. The seedbed conveying frame is located at the input end of the support rods. The conveying direction of the seedbed conveying frame is perpendicular to the extension direction of the support rods. The pushing mechanism is located between the two support rods. One end of the pushing mechanism can extend along the input end of the support rods to the outside of the seedbed conveying frame away from the support rods. The other end extends along the length of the support rods and is parallel to the support rods. The pushing mechanism can reciprocate in the direction away from the support rods from the seedbed conveying frame to push the seedbeds raised in the seedbed conveying frame into the bearing surfaces of the two support rods in sequence.

[0009] Preferably, the seedbed conveying frame includes a conveying base frame horizontally arranged at the input end of the support rod, several first rollers for conveying the seedbed, and a first drive motor. The first rollers are symmetrically arranged on opposite sides of the conveying base frame and spaced apart along the length of the conveying base frame. The rolling direction of the first rollers is perpendicular to the extension direction of the support rod, and the height of the first rollers is lower than the bearing surface of the support rod. The first drive motor is mounted on the conveying base frame and connected to one or two of the first roller shafts, and can drive the first rollers to rotate to convey the seedbed. The lifting mechanism can lift... The lifting mechanism is set on the conveyor base and is positioned opposite to the two support rods. After the lifting mechanism is lowered, its height is lower than the first roller. After the lifting mechanism is raised, it can lift the seedbed conveyed on the first roller parallel upwards so that the bottom of the seedbed is level with the input ends of the two support rods. One end of the pushing mechanism can extend along the input end of the support rod to the outside of the conveyor base away from the support rod. When the pushing mechanism retracts and moves towards the support rod, it can hook the outer edge of the seedbed lifted upwards by the lifting mechanism and push the lifted seedbed into the support surface of the support rod.

[0010] Preferably, the lifting mechanism includes two lifting rods for lifting the seedbed and a first lifting drive. Two sets of limiting slide grooves are provided on the inner side of the conveyor base. Each set of limiting slide grooves includes two limiting slide grooves, which are vertically arranged on opposite sides of the conveyor base and aligned linearly with the extension direction of the two support rods. The upper end of each limiting slide groove is flush with the bearing surface of the support rod. The two ends of the two lifting rods are respectively inserted into the two limiting slide grooves of each set of limiting slide grooves. The first lifting drive consists of four components, each located at the lower end of a limiting slide groove. The telescopic arms of the four first lifting drives are connected to the ends of the two lifting rods inserted in the limiting slide grooves. The telescopic arms of the four first lifting drives extend upward synchronously, raising the two lifting rods simultaneously to lift the seedbed conveyed on the first roller upward, so that the bottom of the seedbed is level with the input ends of the two bearing rods.

[0011] Preferably, the pushing mechanism includes a push-pull rod, a pushing drive, several baffles, and several support frames. The support frames are vertically mounted on each base support and positioned between two support rods. Each support frame has a support wheel at its upper end, which can rotate freely towards both ends of the support rod. The pushing drive is located at the end of the support rod away from the seedbed conveyor frame. The push-pull rod is movably mounted on the support wheel at the upper end of each support frame and is parallel to the two support rods. One end of the push-pull rod extends along the input end of the support rod to the outer side of the conveyor base away from the support rod, and the other end is connected to the pushing drive. A stop plate is provided at the end of the push-pull rod extending to the outer side of the conveyor base. A groove is provided at the upper end of the push-pull rod along its length. Several baffles are spaced apart and pinned within the groove along the length of the push-pull rod. One end of each baffle faces the pushing drive direction, and the other end faces the seedbed conveyor frame. The baffles are positioned towards the seedbed. One end of the bed conveyor is heavier than the end facing the pushing drive direction, so that the end of the baffle facing the pushing drive direction tilts upward under the action of gravity and protrudes from the groove. When the pushing drive traction push rod retracts and moves, the stop plate can hook onto the outer edge of the seedbed that is lifted upward by the lifting mechanism, and can push the lifted seedbed into the bearing surface of the bearing rod. When the pushing drive traction push rod extends and moves again towards the seedbed conveyor, the end of the baffle that tilts upward can pass through the bottom of the seedbed that has been pushed onto the bearing rod, and after being squeezed by the bottom of the seedbed, it can adaptively turn into the groove and hide. After the baffle passes through the bottom of the seedbed, the end facing the pushing drive direction can adaptively tilt upward again under the action of gravity. When the pushing drive traction push rod retracts and moves again, the end of the baffle that tilts upward can block the outer edge of the seedbed that has been passed through, and can push the seedbed to continue moving along the bearing surface of the bearing rod.

[0012] Preferably, each group of seedbed placement racks is further provided with a seedbed transfer rack horizontally at the output end away from the seedbed conveyor rack. The seedbed transfer racks at the output ends of multiple groups of seedbed placement racks are connected end to end and combined to form a transfer rack group arranged in a line. The end of the transfer rack group is the output end of the seedbed. The pushing mechanism on each group of seedbed placement racks can push the seedbeds placed on each group of seedbed placement racks into the corresponding seedbed transfer racks in sequence. Each seedbed transfer rack can transfer the seedbeds to the output end of the transfer rack group in sequence for the retrieval of the seedbeds.

[0013] Preferably, each of the seedbed transfer frames includes a transfer base frame horizontally arranged at the output end of the support rod, an auxiliary receiving mechanism for receiving the seedbed, several second rollers for conveying the seedbed, and a second drive motor. The second rollers are symmetrically arranged on opposite sides of the transfer base frame and spaced apart along the length of the transfer base frame. The rolling direction of the second rollers is perpendicular to the extension direction of the support rod, and the height of the second rollers is lower than the bearing surface of the support rod. The auxiliary receiving mechanism is vertically and flexibly arranged on the transfer base frame and is arranged opposite to the output ends of the two support rods. When the auxiliary receiving mechanism is raised, it can be level with the height of the output ends of the two support rods, so that the pushing mechanism can push the seedbed placed on the support rod onto the auxiliary receiving mechanism. When the auxiliary receiving mechanism is lowered, its height is lower than the second rollers, so that the seedbed it receives can be placed on the second rollers on both sides of the transfer base frame. The second drive motor is arranged on the transfer base frame and connected to one or two of the second roller shafts, and can drive the second rollers to rotate, so as to convey the seedbed placed on the second rollers towards the output end of the transfer frame assembly.

[0014] Preferably, each of the auxiliary receiving mechanisms includes two receiving rods for receiving the seedbed and two sets of second lifting drive groups. Each set of second lifting drive groups includes two second lifting drives, which are correspondingly arranged on both sides of the inner side of the transfer base frame and aligned in a straight line with the output ends of the two bearing rods. The four second lifting drives are vertically arranged and at the same height. The two ends of the two receiving rods are respectively arranged on the upper ends of the two second lifting drives in each set of second lifting drive groups. The four second lifting drives can simultaneously lift and lower the two receiving rods. After the two receiving rods rise, they are level with the height of the output ends of the two bearing rods. After the two receiving rods fall, their height is lower than the second rollers.

[0015] Preferably, a stop edge is provided annularly on the outer edge of the second roller on the side of the transfer base away from the support rod. The diameter of the stop edge is larger than the diameter of the second roller, and the height of the stop edge is higher than the bearing surface of the support rod. An auxiliary pushing mechanism is also provided on one side of each receiving rod. The auxiliary pushing mechanism is parallel to the receiving rod and can extend and retract in the direction away from the support rod. When the auxiliary pushing mechanism extends, it can be locked inside the edge of the seedbed supported on the receiving rod and can push the seedbed towards the stop edge of the second roller on the side away from the support rod, so that the edge of the seedbed is close to the stop edge.

[0016] This utility model also provides a seedbed that can be movably placed on the aforementioned greenhouse seedbed conveying and placing device. The seedbed includes a seedbed body, and the bottom of the seedbed body is provided with four I-shaped pulleys that match the two supporting rods mentioned above. The four I-shaped pulleys are symmetrically distributed on both sides of the bottom of the seedbed body and can respectively straddle the bearing surface of the two supporting rods. When the pushing mechanism pushes the seedbed to move along the two supporting rods, the pulleys can roll freely along the supporting rods.

[0017] As can be seen from the above technical solution, the greenhouse seedbed conveying and placing device provided in this application includes multiple sets of seedbed placing frames arranged in parallel inside the greenhouse for placing seedbeds. At the input end of each set of seedbed placing frames, a seedbed conveying frame for conveying seedbeds is arranged horizontally. Each seedbed conveying frame is equipped with a lifting mechanism. The multiple sets of seedbed placing frames are arranged side-by-side along their width, so that the seedbed conveying frames at the input end of each set of seedbed placing frames are connected end-to-end, forming a linear conveying frame group. The first end of the conveying frame group is the input end of the seedbed. The conveying frame group can move the seedbeds to be placed from its input end... The seedbeds are sequentially conveyed to the input end of each seedbed placement rack. The lifting mechanism can lift the seedbeds conveyed on each seedbed conveyor rack upwards, so that the bottom of the seedbed is flush with the input end of its corresponding seedbed placement rack. Each group of seedbed placement racks is equipped with a pushing mechanism, which can push the lifted seedbeds sequentially into the seedbed placement rack for placement. The advantages are that only a small amount of manpower is needed to move the input end of the seedbed placement rack group to realize the conveying and placement of seedbeds, saving time and labor, reducing labor costs, and improving the operational efficiency of greenhouse seedling production. Attached Figure Description

[0018] Figure 1 This is a schematic diagram of the placement state of the utility model.

[0019] Figure 2 This is a side view of the structure of the utility model.

[0020] Figure 3 This is a three-dimensional structural diagram of the utility model.

[0021] Figure 4 This is a partial structural diagram of the seedbed placement rack.

[0022] Figure 5 This is a schematic diagram of the seedbed conveyor system.

[0023] Figure 6 This is a partial structural diagram of the lifting mechanism.

[0024] Figure 7 This is a partial structural diagram of the pushing mechanism.

[0025] Figure 8 This is a schematic diagram of the pushing drive structure of the pushing mechanism.

[0026] Figure 9 This is a schematic diagram of the seedbed transfer frame.

[0027] Figure 10 This is a schematic diagram of the seedbed transfer frame from another angle.

[0028] Figure 11 This is a structural diagram of the auxiliary pushing mechanism.

[0029] Figure 12 This is a schematic diagram of the bottom structure of the seedbed.

[0030] In the diagram: 10 seedbed placement frame, 11 base support, 12 bearing rod, 20 seedbed conveyor frame, 21 conveyor base frame, 22 first roller, 23 first drive motor, 200 conveyor frame assembly, 30 lifting mechanism, 31 lifting rod, 32 first lifting drive, 33 limiting slide groove, 40 pushing mechanism, 41 push-pull rod, 42 pushing drive, 43 baffle, 44 support frame, 45 support wheel, 411 groove, 46 stop plate, 421 fixing frame, push... 422, motor 423, transmission chain 424, transmission gear 425, connecting rod 425, transfer frame assembly 500, seedbed transfer frame 50, transfer base frame 51, second roller 52, stop edge 521, second drive motor 53, auxiliary receiving mechanism 60, receiving rod 61, second lifting drive 62, auxiliary pushing mechanism 70, pushing frame 71, telescopic push rod 72, slider 73, stop block 74, through groove 75, seedbed body 80, pulley 81. Detailed Implementation

[0031] To more clearly illustrate the technical solutions of the embodiments of this utility model, the drawings used in the embodiments will be briefly introduced below. Obviously, the drawings described below are some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0032] Please refer to Figures 1 to 3This utility model provides a seedbed conveying and placement device for greenhouses, including multiple sets of seedbed placement racks 10 arranged parallel to each other in the greenhouse for placing seedbeds. At the input end of each set of seedbed placement racks 10, a seedbed conveyor rack 20 for conveying seedbeds is arranged horizontally. Each seedbed conveyor rack 20 is equipped with a lifting mechanism 30. The multiple sets of seedbed placement racks 10 are arranged side-by-side in the greenhouse along their width direction, so that the seedbed conveyor racks 20 at the input end of each set of seedbed placement racks 10 are connected end-to-end, forming a linear conveyor rack group 200. The first end of the conveyor rack group 200 is the input end of the seedbed. Each seedbed conveyor rack 20 in the conveyor rack group 200 can independently... The seedbeds are transported and can be transported to each other. The transport direction is perpendicular to the length direction of each seedbed placement rack 10. In use, the input end of the seedbed placement rack group 200 containing the seedling trays is manually opened. Each seedbed placement rack 20 can transport the seedbeds to be placed to the input end of each seedbed placement rack 10 in turn. The lifting mechanism 30 can lift the seedbeds transported on each seedbed placement rack 20 upwards so that the bottom of the seedbed is flush with the input end of the corresponding seedbed placement rack 10. Each seedbed placement rack 10 is provided with a pushing mechanism 40. Each pushing mechanism 40 can push the lifted seedbeds into the seedbed placement rack 10 in turn for placement.

[0033] Please refer to Figure 3 and Figure 4 Specifically, each set of seedbed placement racks 10 includes several base supports 11 and two parallel support rods 12. The two support rods 12 extend along the width or length of the greenhouse and are spaced apart. The two support rods 12 are at the same height and their ends are aligned. The several base supports 11 are spaced apart along the length of the support rods 12 at the lower end of the support rods 12 to support the two support rods 12. The upper end surface of the two support rods 12 is the bearing surface for placing the seedbed. One end of the two support rods 12 is the aforementioned input end, and the other end is the output end. The spacing between the two support rods 12 matches the length of the seedbed. The seedbed conveyor rack 20 is set on the support... At the input end of rod 12, the conveying direction of the seedbed conveyor frame 20 is perpendicular to the extension direction of the supporting rod 12. The pushing mechanism 40 is disposed between the two supporting rods 12. One end of the pushing mechanism 40 can extend along the input end of the supporting rod 12 to the outside of the seedbed conveyor frame 20 away from the supporting rod 12, and the other end extends along the length direction of the supporting rod 12. The pushing mechanism 40 is parallel to the supporting rod 12. The pushing mechanism 40 can reciprocate in the direction away from the supporting rod 12 from the seedbed conveyor frame 20. When the pushing mechanism 40 retracts and moves towards the supporting rod 12, it can hook the upward-lifted side edge of the seedbed in the seedbed conveyor frame 20 and push the seedbed into the bearing surface of the two supporting rods 12.

[0034] Please refer to Figure 3 , Figure 5 and Figure 6 The seedbed conveying frame 20 includes a conveying base 21 horizontally arranged at the input end of the support rod 12, several first rollers 22 for conveying seedbeds, and a first drive motor 23. Multiple first rollers 22 are symmetrically arranged on opposite sides of the conveying base 21 and spaced apart along the length of the conveying base 21. The rolling direction of the first rollers 22 is perpendicular to the extension direction of the support rod 12, and the height of the first rollers 22 is lower than the bearing surface of the support rod 12. The first drive motor 23 is a servo motor, with at least two sets, respectively arranged on opposite sides or the same side of the conveying base 21, and respectively connected to the shafts of two of the first rollers 22, enabling synchronous rotation of the first rollers 22 to convey the seedbeds. Furthermore, by setting position sensors matching the seedbeds at corresponding positions on each conveying base 21, the conveying position of the seedbeds is detected by the position sensors, allowing the first drive motor 23 to accurately convey the seedbeds to the input end of each group of seedbed placement racks 10.

[0035] The lifting mechanism 30 is vertically mounted on the conveyor base 21 and is positioned opposite to the two support rods 12. When the lifting mechanism 30 is lowered, its height is lower than the first roller 22. When the lifting mechanism 30 is raised, it can lift the seedbed conveyed on the first roller 22 upwards in parallel so that the bottom of the seedbed is level with the input end of the two support rods 12. One end of the pushing mechanism 40 can extend along the input end of the support rod 12 to the outside of the conveyor base 21 away from the support rod 12. When the pushing mechanism 40 retracts and moves towards the support rod 12, it can hook the outer edge of the seedbed lifted upwards by the lifting mechanism 30 and push the lifted seedbed onto the support surface of the support rod 12.

[0036] The lifting mechanism 30 includes two lifting rods 31 for lifting the seedbed and a first lifting drive 32. Two sets of limiting slide grooves are provided on the inner side of the conveyor base 21. Each set of limiting slide grooves includes two limiting slide grooves 33. The two limiting slide grooves 33 of each set are vertically arranged on opposite sides of the conveyor base 21 and are aligned linearly with the extension direction of the two bearing rods 12. The upper end of the limiting slide groove 33 is flush with the bearing surface of the bearing rod 12. The two ends of the two lifting rods 31 are respectively inserted into the two limiting slide grooves 33 of each set of limiting slide grooves and are parallel to the two bearing rods 12. The two lifting rods 31 can slide freely up and down along the two limiting slide grooves 33. Four first lifting drives 32 are provided at each limiting slide groove. The lower end of the slide groove 33, and the telescopic arms of the four first lifting drives 32, are connected to the ends of the two lifting rods 31 inserted in the limiting slide groove 33, and can move up and down in the limiting slide groove 33. After the telescopic arms of the four first lifting drives 32 extend upward synchronously, they can raise the two lifting rods 31 synchronously to lift the seedbed conveyed on the first roller 22 upward, so that the bottom of the seedbed is level with or higher than the height of the input ends of the two support rods 12, so that the seedbed can smoothly enter the bearing surface of the two support rods 12 from the first roller 22. After the telescopic arms of the four first lifting drives 32 retract downward synchronously, they can lower the two lifting rods 31 synchronously, so that the two lifting rods 31 are lower than the first roller 22. The four first lifting drives 32 are preferably cylinders, which can be powered by an externally installed air compressor. The four first lifting drives 32 can also be electric push rods, which can be powered by an external power source.

[0037] Please refer to Figure 3 , Figure 5 , Figure 7 , Figure 8 and Figure 9The pushing mechanism 40 includes a push-pull rod 41, a pushing drive 42, several baffles 43, and several support frames 44. The support frames 44 are vertically mounted on each base support 11 and positioned between two bearing rods 12. Each support frame 44 has an I-shaped support wheel 45 at its upper end, matching the push-pull rod 41. The support wheels 45 can rotate freely towards both ends of the bearing rods 12. The pushing drive 42 is located at the end of the bearing rod 12 furthest from the seedbed conveyor frame 20. The push-pull rod 41 is movably mounted on the support wheels 45 at the upper end of each support frame 44 and is supported by the support wheels 45. The push-pull rod 41 and the two bearing rods 12 interact with each other. The push-pull rod 41 is parallel to the conveyor base 21, with one end extending along the input end of the support rod 12 to the outside of the support rod 12. The other end is connected to the push drive 42. A stop plate 46 is provided at the end of the push-pull rod 41 extending to the outside of the conveyor base 21. The height of the stop plate 46 is higher than the bottom of the seedbed being conveyed. A groove 411 is provided at the upper end of the push-pull rod 41 along its length. Several baffles 43 are pinned and connected at intervals along the length of the push-pull rod 41 in the groove 411. The baffles 43 are elongated strips, with the middle part of the baffles 43 pinned to the groove 411. One end of the baffles 43 faces the push drive 42, and the other end faces the seedbed conveyor frame. In the direction of 20, the end of the baffle 43 facing the seedbed conveyor 20 is heavier than the end facing the push drive 42, so that the end of the baffle 43 facing the push drive 42 tilts upward under the action of gravity and protrudes from the groove 411. The end facing the seedbed conveyor 20 contacts the bottom of the groove 411, so that the baffle 43 is set in the groove 411 in an inclined state, and the height of the end of the baffle 43 protruding from the groove 411 is higher than the bottom of the seedbed being conveyed. When the push drive 42 pulls the push rod 41 to retract and move, the stop plate 46 can hook the outer edge of the seedbed that is lifted upward by the lifting mechanism 30, and can push the lifted seedbed into the bearing rod 1. On the bearing surface of 2, when the push-pull rod 41 of the push-drive 42 extends and moves again towards the seedbed conveyor 20, the upward-curved end of the baffle 43 can pass through the bottom of the seedbed pushed onto the bearing rod 12, and after being squeezed by the bottom of the seedbed, it can adaptively turn to hide in the groove 411. After the baffle 43 passes through the bottom of the seedbed, the end facing the push-drive 42 can adaptively curve upward again under the action of gravity. When the push-drive 42 pulls the push-pull rod 41 to retract and move again, the upward-curved end of the baffle 43 can block the outer edge of the seedbed that it has passed through, and can push the seedbed to continue moving along the bearing surface of the bearing rod 12.

[0038] Please continue reading. Figure 8 and Figure 9The pushing drive 42 includes a fixed frame 421, a pushing motor 422, a transmission chain 423, and two transmission gears 424. The fixed frame 421 is longitudinally arranged at the output end of the push-pull rod 41 and located between the two support rods 12. The fixed frame 421 and the two support rods 12 are parallel to each other. The two transmission gears 424 are rotatably mounted at both ends of the fixed frame 421. The two transmission gears 424 are aligned in a straight line with the length direction of the support rods 12. The transmission chain 423 is annularly meshed with the two transmission gears 424. The pushing motor 422 is mounted on the fixed frame 421. The frame is mounted on a fixed frame 421 and connected to one of the transmission gears 424. A connecting rod 425 is movably mounted above the fixed frame 421. The connecting rod 425 is parallel to the bearing rod 12. One end of the connecting rod 425 is fixedly connected to the outer surface of the transmission chain 423, and the other end is fixedly connected to the push-pull rod 41. The push motor 422 is a servo motor that can drive the transmission gear 424 to rotate in the forward and reverse directions, so as to drive the connecting rod 425 to reciprocate through the transmission chain 423. The connecting rod 425 drives the push-pull rod 41 to reciprocate, so as to push the seedbed to move along the bearing rod 12.

[0039] In the above embodiments, the push drive 42 can also be a cylinder or an electric push rod, which directly drives the push-pull rod 41 to reciprocate.

[0040] In the above embodiment, each time the push-pull rod 41 reciprocates, the stop plate 46 at the end of the push-pull rod 41 can push one seedbed on the seedbed conveyor frame 20 onto the support rod 12. The baffle 43 in the groove 411 of the push-pull rod 41 moves synchronously with the push-pull rod 41, and the seedbeds that are pushed onto the support rod 12 are pushed sequentially toward the output end of the support rod 12. The spacing of each baffle 43 matches the width of the seedbed being pushed. Each baffle 43 moves one seedbed at a time until the seedbeds are filled along the extension direction of the support rod 12.

[0041] Please refer to Figure 1 and Figure 3 Furthermore, to facilitate the transfer and retrieval of seedbeds, each group of seedbed placement racks 10 is also horizontally provided with a seedbed transfer rack 50 at the output end away from the seedbed conveyor rack 20. The seedbed transfer racks 50 at the output ends of multiple groups of seedbed placement racks 10 are connected end to end and combined to form a transfer rack group 500 arranged in a line. The end of the transfer rack group 500 is the output end of the seedbed. The pushing mechanism 40 on each group of seedbed placement racks 10 can push the seedbeds placed on each group of seedbed placement racks 10 into the corresponding seedbed transfer rack 50 in sequence. Each seedbed transfer rack 50 can transfer the seedbeds to each other and sequentially transfer the seedbeds to the output end of the transfer rack group 500 for the transfer and retrieval of the seedbeds.

[0042] For details, please refer to Figure 3 , Figure 9 and Figure 10 Each of the seedbed transfer frames 50 includes a transfer base 51 horizontally arranged at the output end of the support rod 12, an auxiliary receiving mechanism 60 for receiving the seedbed, several second rollers 52 for transporting the seedbed, and a second drive motor 53. The second rollers 52 are symmetrically arranged on opposite sides of the transfer base 51 and spaced apart along the length of the transfer base 51. The rolling direction of the second rollers 52 is perpendicular to the extension direction of the support rod 12, and the height of the second rollers 52 is lower than the bearing surface of the support rod 12. The auxiliary receiving mechanism 60 is vertically detachable and arranged on the transfer base 51, and is positioned opposite to the output ends of the two support rods 12. After rising, the height of the seedbed is level with the output end of the two support rods 12, so that the pushing mechanism 40 can push the seedbed placed on the support rods 12 onto the auxiliary receiving mechanism 60. After the auxiliary receiving mechanism 60 descends, its height is lower than the second roller 52, so that the seedbed it supports can be placed on the second rollers 52 on both sides of the transfer base frame 51. The second drive motor 53 is two servo motors, which are respectively set on opposite sides or the same side of the transfer base frame 51, and are respectively connected to the shafts of the two second rollers 52, and can drive the second rollers 52 to rotate, so as to convey the seedbed placed on the second rollers 52 towards the output end of the transfer frame group 500.

[0043] Each of the auxiliary receiving mechanisms 60 includes two receiving rods 61 for receiving the seedbed and two sets of second lifting drives 62. Each set of second lifting drives 62 includes two second lifting drives 62, which are correspondingly arranged on both sides of the inner side of the transfer base frame 51 and aligned linearly with the output ends of the two bearing rods 12. The four second lifting drives 62 are vertically arranged and at the same height. The two ends of the two receiving rods 61 are respectively located at the upper ends of the two second lifting drives 62 in each set of second lifting drives 62. The four second lifting drives 62 can synchronously lift and lower the two receiving rods 61. After the two receiving rods 61 rise, they are level with the output ends of the two bearing rods 12 and face each other. After the two receiving rods 61 fall, their height is lower than the second roller 52. The four second lifting drives 62 are preferably cylinders, which can be powered by an externally installed air compressor. Alternatively, the four second lifting drives 62 can be electric push rods, which can be powered by an external power source.

[0044] Please refer to Figure 9To facilitate the smooth entry of the seedbed into the seedbed transfer frame 50, a stop edge 521 is annularly provided on the outer edge of the second roller 52 on the side of the transfer base frame 51 away from the support rod 12. The diameter of the stop edge 521 is larger than the diameter of the second roller 52, and the height of the stop edge 521 is higher than the bearing surface of the support rod 12. An auxiliary pushing mechanism 70 is also provided on one side of each receiving rod 61. The auxiliary pushing mechanism 70 is parallel to the receiving rod 61 and can extend and retract in the direction away from the support rod 12. When the auxiliary pushing mechanism 70 extends, it can be locked inside the edge of the seedbed supported on the receiving rod 61 and push the seedbed towards the stop edge 521 of the second roller 52 on the side away from the support rod 12, so that the edge of the seedbed is close to the stop edge 521.

[0045] Please refer to Figures 9 to 11 The auxiliary pushing mechanism 70 includes a pushing frame 71, a telescopic push rod 72, and a stop block 74. The pushing frame 71 is installed on one side of the receiving rod 61 and extends along the length of the receiving rod 61. The telescopic push rod 72 is mounted on the pushing frame 71 and is parallel to the receiving rod 61. The telescopic end of the telescopic push rod 72 faces the end of the receiving rod 61 away from the bearing rod 12. A slider 73 is provided at the telescopic end of the telescopic push rod 72. The slider 73 is engaged with the pushing frame 71. The telescopic push rod 72 can push the slider 73 to reciprocate along the pushing frame 71. A through groove 75 matching the stop block 74 is opened on the slider 73. The opening direction of the through groove 75 is parallel to the receiving rod 61. The middle part of the stop block 74 is pinned into the through groove 75. One end of the stop block 74 faces the telescopic push rod 72, and the other end faces the end of the receiving rod 61 away from the bearing rod 12. The end of the stop block 74 facing the telescopic push rod 72 is heavier than the end of the receiving rod 61. At its other end, the end of the stop block 74 facing the receiving rod 61 away from the bearing rod 12 is tilted upward under the action of gravity, protruding from the through groove 75. The end of the stop block 74 facing the telescopic push rod 72 contacts the push frame 71 and is stopped by the push frame 71, so that the stop block 74 is in an inclined state in the through groove 75. The telescopic push rod 72 and the slider 73 are lower than the receiving rod 61, and the tilted end of the stop block 74 is higher than the receiving rod 61. When the receiving rod 61 rises and supports the seedling Behind the bed, the raised end of the stop block 74 can rest against the inner edge of the seedbed. The telescopic push rod 72 is a cylinder or electric push rod. After the telescopic push rod 72 extends, the raised end of the stop block 74 can be used to push the seedbed towards the stop edge 521 of the second roller 52 so that the edge of the seedbed is close to the stop edge 521. When the telescopic push rod 72 retracts, if the raised end of the stop block 74 is squeezed by the bottom of the seedbed, it can adaptively rotate downward and hide in the through groove 75.

[0046] When transferring and retrieving seedbeds, the two receiving rods 61 on the seedbed transfer frame 50 corresponding to each seedbed placement frame 10 are raised until they are level with the output ends of the two bearing rods 12 on the corresponding seedbed placement frame 10. With the telescopic push rod 72 in a retracted state, the corresponding push drive 42 pulls the push-pull rod 41 towards the seedbed placement frame 10. Each retraction of the push-pull rod 41 pushes a seedbed placed on the bearing rod 12 parallel into the two receiving rods 61. At the upper end, the telescopic push rod 72 extends, and the raised end of the stop block 74 pushes the inner edge of the seedbed to continue moving towards the stop edge 521 of the second roller 52, so that the seedbed is close to the stop edge 521, so that the seedbed is completely placed on the second rollers 52 on both sides of the transfer base frame 51. Then, by controlling the corresponding second drive motor 53 to drive the second roller 52 to rotate, the seedbed placed on the second roller 52 is sequentially transferred to the output end of the transfer frame group 500, completing the transfer and retrieval of the seedbed.

[0047] Please refer to Figure 12 The present invention also provides a seedbed, including a seedbed body 80. The bottom of the seedbed body 80 is provided with four I-shaped pulleys 81 that match the two supporting rods 61 mentioned above. The four I-shaped pulleys 81 are symmetrically distributed on both sides of the bottom of the seedbed body 80 and can respectively straddle the bearing surface of the two supporting rods 61. When the pushing mechanism 40 pushes the seedbed to move along the two supporting rods 61, the pulleys 81 can roll freely along the supporting rods 61, reducing the friction between the seedbed and the supporting rods 61, so as to facilitate the movement of the seedbed. Furthermore, the I-shaped pulleys 81 straddling the supporting rods 61 can limit the movement of the seedbed, allowing the seedbed to move linearly on the supporting rods 61.

[0048] The above-disclosed embodiments are merely preferred embodiments of the present utility model and should not be construed as limiting the scope of the present utility model. Those skilled in the art can understand that implementing all or part of the above-described embodiments and making equivalent changes in accordance with the claims of the present utility model are still within the scope of the utility model.

Claims

1. A seedbed conveying and placement device for greenhouses, characterized in that: The system includes multiple sets of parallel seedbed racks arranged within a greenhouse. At the input end of each set of seedbed racks, a horizontal conveyor rack for transporting seedbeds is provided. Each conveyor rack is equipped with a lifting mechanism. The multiple sets of seedbed racks are arranged side-by-side along their width, so that the conveyor racks at the input ends of each set are connected end-to-end, forming a linear conveyor rack group. The first end of each conveyor rack group serves as the input end for the seedbeds. The conveyor rack group can sequentially transport the seedbeds to be placed from its input end to the input end of each seedbed rack. The lifting mechanism can raise the seedbeds transported on each conveyor rack upwards, aligning the bottom of the seedbed with the input end of its corresponding seedbed rack. Each set of seedbed racks is equipped with a pushing mechanism, which can sequentially push the raised seedbeds onto the respective seedbed rack for placement.

2. The seedbed transfer and placement device for a greenhouse according to claim 1, characterized in that: Each set of seedbed placement frames includes several base supports and two parallel support rods. The two support rods extend along the width or length of the greenhouse and are spaced apart. The two support rods are at the same height and their ends are aligned. The base supports are spaced apart along the length of the support rods at their lower ends to support the two support rods. The upper surfaces of the two support rods are the bearing surfaces for placing the seedbeds. One end of each support rod is the aforementioned input end, and the other end is the output end. The seedbed conveyor is located at the input end of the support rod. The conveying direction of the seedbed conveyor is perpendicular to the extension direction of the support rod. The pushing mechanism is located between the two support rods. One end of the pushing mechanism extends along the input end of the support rod to the outside of the seedbed conveyor away from the support rod, and the other end extends along the length of the support rod and is parallel to the support rod. The pushing mechanism can reciprocate in the direction away from the support rod to push the seedbeds raised in the seedbed conveyor into the bearing surfaces of the two support rods in sequence.

3. The seedbed transfer and placement device for a greenhouse according to claim 2, characterized in that: The seedbed conveying frame includes a conveying base frame horizontally arranged at the input end of the support rod, several first rollers for conveying the seedbeds, and a first drive motor. The first rollers are symmetrically arranged on opposite sides of the conveying base frame and spaced apart along the length of the conveying base frame. The rolling direction of the first rollers is perpendicular to the extension direction of the support rod, and the height of the first rollers is lower than the bearing surface of the support rod. The first drive motor is mounted on the conveying base frame and connected to one or two of the first roller shafts, and is capable of driving the first rollers to rotate to convey the seedbeds. The lifting mechanism is height-adjustable. The lifting mechanism is mounted on the conveyor base and positioned opposite the two support rods. After the lifting mechanism descends, its height is lower than the first roller. After the lifting mechanism rises, it can lift the seedbed conveyed on the first roller parallel upwards so that the bottom of the seedbed is level with the input ends of the two support rods. One end of the pushing mechanism can extend along the input end of the support rod to the outside of the conveyor base away from the support rod. When the pushing mechanism retracts and moves towards the support rod, it can hook the outer edge of the seedbed lifted upwards by the lifting mechanism and push the lifted seedbed onto the support surface of the support rod.

4. The seedbed transfer and placement device for a greenhouse according to claim 3, characterized in that: The lifting mechanism includes two lifting rods for lifting the seedbed and a first lifting drive. Two sets of limiting slide grooves are provided on the inner side of the conveyor base. Each set of limiting slide grooves includes two limiting slide grooves, which are vertically arranged on opposite sides of the conveyor base and aligned linearly with the extension direction of the two supporting rods. The upper end of each limiting slide groove is flush with the bearing surface of the supporting rod. The two ends of the two lifting rods are respectively inserted into the two limiting slide grooves of each set of limiting slide grooves, and respectively aligned with the two supporting rods. The support rods are parallel to each other, and the two lifting rods can slide freely up and down along the two limiting slides respectively. There are four first lifting drives, which are respectively set at the lower end of each limiting slide. The telescopic arms of the four first lifting drives are connected to the ends of the two lifting rods inserted in the limiting slides. The telescopic arms of the four first lifting drives extend upward synchronously, which can raise the two lifting rods upward synchronously, so as to lift the seedbed conveyed on the first roller upward, so that the bottom of the seedbed is level with the height of the input end of the two support rods.

5. The seedbed transfer and placement device for use in a greenhouse according to claim 4, characterized in that: The pushing mechanism includes a push-pull rod, a pushing drive, several baffles, and several support frames. The support frames are vertically mounted on each base support and positioned between two support rods. Each support frame has a support wheel at its upper end, allowing free rotation towards both ends of the support rod. The pushing drive is located at the end of the support rod furthest from the seedbed conveyor frame. The push-pull rod is movably mounted on the support wheel at the upper end of each support frame, parallel to the two support rods. One end of the push-pull rod extends along the input end of the support rod towards the outer side of the conveyor base frame furthest from the support rod, while the other end is connected to the pushing drive. A stop plate is provided at the end of the push-pull rod extending towards the outer side of the conveyor base frame. A groove is provided along the length of the upper end of the push-pull rod. Several baffles are spaced apart and pinned within the groove along the length of the push-pull rod. One end of each baffle faces the pushing drive direction, and the other end faces the seedbed conveyor frame. The end facing the conveying direction is heavier than the end facing the pushing drive direction, so that the end of the baffle facing the pushing drive direction tilts upward under the action of gravity and protrudes from the groove. When the pushing drive traction push rod retracts and moves, the stop plate can hook onto the outer edge of the seedbed that is lifted upward by the lifting mechanism, and can push the lifted seedbed into the bearing surface of the bearing rod. When the pushing drive traction push rod extends and moves again towards the seedbed conveying frame, the end of the baffle that tilts upward can pass through the bottom of the seedbed that has been pushed onto the bearing rod, and after being squeezed by the bottom of the seedbed, it can adaptively turn into the groove and hide. After the baffle passes through the bottom of the seedbed, the end facing the pushing drive direction can adaptively tilt upward again under the action of gravity. When the pushing drive traction push rod retracts and moves again, the end of the baffle that tilts upward can block the outer edge of the seedbed that has been passed through, and can push the seedbed to continue moving along the bearing surface of the bearing rod.

6. The greenhouse seedbed conveying and placement device as described in claim 5, characterized in that: Each set of seedbed placement racks also has a seedbed transfer rack horizontally arranged at the output end away from the seedbed conveyor rack. The seedbed transfer racks at the output ends of multiple sets of seedbed placement racks are connected end to end and combined to form a transfer rack group in a straight line. The end of the transfer rack group is the output end of the seedbed. The pushing mechanism on each set of seedbed placement racks can push the seedbeds placed on each set of seedbed placement racks into the corresponding seedbed transfer racks in sequence. Each seedbed transfer rack can transfer the seedbeds to the output end of the transfer rack group in sequence for the retrieval of the seedbeds.

7. The seedbed transfer and placement device for use in a greenhouse according to claim 6, characterized in that: Each of the aforementioned seedbed transfer frames includes a transfer base frame horizontally arranged at the output end of the support rod, an auxiliary receiving mechanism for receiving seedbeds, several second rollers for conveying seedbeds, and a second drive motor. The second rollers are symmetrically arranged on opposite sides of the transfer base frame and spaced apart along the length of the transfer base frame. The rolling direction of the second rollers is perpendicular to the extension direction of the support rod, and the height of the second rollers is lower than the bearing surface of the support rod. The auxiliary receiving mechanism is vertically and flexibly mounted on the transfer base frame and is positioned opposite the output ends of the two support rods. When the auxiliary receiving mechanism is raised, it is level with the height of the output ends of the two support rods, so that the pushing mechanism can push the seedbeds placed on the support rods onto the auxiliary receiving mechanism. When the auxiliary receiving mechanism is lowered, its height is lower than the second rollers, so that the seedbeds it receives can be placed on the second rollers on both sides of the transfer base frame. The second drive motor is mounted on the transfer base frame and connected to one or two of the second roller shafts, and can drive the second rollers to rotate, so as to convey the seedbeds placed on the second rollers towards the output end of the transfer frame assembly.

8. The seedbed transfer and placement device for a greenhouse according to claim 7, characterized in that: Each of the auxiliary receiving mechanisms includes two receiving rods for receiving the seedbed and two sets of second lifting drive groups. Each set of second lifting drive groups includes two second lifting drives, which are respectively arranged on both sides of the inner side of the transfer base frame and aligned in a straight line with the output ends of the two bearing rods. The four second lifting drives are arranged vertically and at the same height. The two ends of the two receiving rods are respectively arranged on the upper ends of the two second lifting drives in each set of second lifting drive groups. The four second lifting drives can simultaneously lift and lower the two receiving rods. After the two receiving rods rise, they are level with the height of the output ends of the two bearing rods. After the two receiving rods fall, their height is lower than the second rollers.

9. The seedbed transfer and placement device for use in a greenhouse according to claim 8, characterized in that: A stop edge is circumferentially provided on the outer edge of the second roller on the side of the transfer base away from the support rod. The diameter of the stop edge is larger than the diameter of the second roller, and the height of the stop edge is higher than the bearing surface of the support rod. An auxiliary pushing mechanism is also provided on one side of each receiving rod. The auxiliary pushing mechanism is parallel to the receiving rod and can extend and retract in the direction away from the support rod. When the auxiliary pushing mechanism extends, it can be locked inside the edge of the seedbed supported on the receiving rod and push the seedbed towards the stop edge of the second roller on the side away from the support rod, so that the edge of the seedbed is close to the stop edge.

10. A seedbed, movably placed on a greenhouse seedbed conveying and placing device as described in any one of claims 2 to 9, characterized in that: The system includes a seedbed body, the bottom of which is equipped with four I-shaped pulleys that match the two supporting rods mentioned above. The four I-shaped pulleys are symmetrically distributed on both sides of the bottom of the seedbed body and can respectively straddle the bearing surfaces of the two supporting rods. When the pushing mechanism pushes the seedbed to move along the two supporting rods, the pulleys can roll freely along the supporting rods.

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