Soilless cultivation device for watermelons

Abstract

This utility model relates to the field of hydroponic watermelon cultivation technology, specifically to a hydroponic watermelon cultivation device, including a fixed frame, a cultivation trough, a placement basket, a climbing frame, and a fixing part. The cultivation trough has an open upper end and is fixed to the fixed frame. The placement basket is placed on the fixed frame and has an open upper end. Multiple through holes are formed in the basket wall, and the lower part of the placement basket is located inside the cultivation trough. The climbing frame is slidably mounted on the fixed frame, and the fixing part is used to fix the height of the climbing frame. Due to the adoption of the above technical solution, the operator can reduce safety hazards when pruning the watermelon vines at the top of the climbing frame of the hydroponic watermelon cultivation device described in this utility model.

Description

Technical Field

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

[0002] Watermelon is a widely cultivated vine-like cucurbitaceous crop. Traditional cultivation methods mainly rely on soil planting, with vines managed through ground climbing or artificial trellises. However, traditional planting methods suffer from low land utilization, susceptibility to pests and diseases, and inconvenient management. In recent years, soilless cultivation technologies (such as substrate cultivation, hydroponics, and aeroponics) have been applied in watermelon cultivation, which can effectively improve water and fertilizer utilization efficiency, reduce soil-borne diseases, and achieve three-dimensional planting.

[0003] In hydroponics, the climbing trellis is a crucial structure supporting the growth of watermelon vines. As the watermelon plant grows, the vines need to reach a considerable length to ensure sufficient leaves for photosynthesis and provide adequate nutrients for fruit development. Therefore, a tall climbing trellis is necessary. While existing trellises are tall enough for the vines, after a period of growth, the top of the vines reaches the top of the trellis and needs pruning. Operators who are too short must stand on stools or ladders to prune the vines at the top of the trellis, posing a safety hazard as they may fall during the process. Utility Model Content

[0004] In view of this, the purpose of this utility model is to provide a soilless cultivation device for watermelons to solve the technical problem in the prior art that operators may fall from stools or ladders while pruning watermelon vines, posing a safety hazard.

[0005] This utility model is achieved through the following technical solution:

[0006] A hydroponic watermelon cultivation device includes a fixed frame, a cultivation trough, a placement basket, a climbing frame, and a fixing part. The cultivation trough has an open top and is fixed to the fixed frame. The placement basket is placed on the fixed frame and has an open top. Multiple through holes are formed in the basket wall. The lower part of the placement basket is located inside the cultivation trough. The climbing frame is slidably mounted on the fixed frame. The fixed frame is provided with a fixing part for fixing the height of the climbing frame.

[0007] Furthermore, the lower outer surface of the climbing frame is recessed inward to form a guide groove, which is arranged vertically.

[0008] A guide rod is fixedly installed inside the fixing frame, and the guide rod is located in the guide groove and cooperates with the guide groove.

[0009] Furthermore, the lower part of the climbing frame is cylindrical, and external threads are formed on the outer periphery of the lower part of the climbing frame;

[0010] The fixing part includes a worm gear assembly and a drive assembly. The worm gear assembly includes a worm wheel and a worm. The worm wheel is rotatably connected to the fixing frame. A threaded hole is formed on the worm wheel. The threaded hole is coaxial with the worm wheel. The worm wheel is threaded to the lower part of the climbing frame through the threaded hole. The worm is rotatably connected to the fixing frame. The worm meshes with the worm wheel.

[0011] Furthermore, there are multiple climbing frames and multiple placement baskets;

[0012] Multiple climbing frames are arranged sequentially at intervals along a straight line. There are multiple worm gear assemblies, and each worm gear assembly corresponds one-to-one with a climbing frame. The worm gears included in the worm gear assemblies are threadedly connected to the lower part of the corresponding climbing frame through the screw holes. The drive assembly is used to synchronously drive the worms included in the multiple worm gear assemblies to rotate. The drive assembly is also used to synchronously lock the rotation of the worms in the multiple worm gear assemblies.

[0013] Furthermore, a channel is formed in the middle of each of the multiple worm gears, and the multiple channels are located on the same axis. The channels are arranged parallel to the straight line direction, and a locking block protrudes from the side wall of the channel.

[0014] The drive assembly includes a rotating rod and a fixing member. The rotating rod is rotatably connected to the fixing frame. The rotating rod is located in a plurality of the channels. The outer surface of the rotating rod is recessed inward to form a slot. The slot is arranged parallel to the straight line and accommodates a plurality of the locking blocks. The slot and the locking blocks cooperate with each other.

[0015] Furthermore, a threaded hole is formed on the fixing frame, one end of which is connected to the shaft hole and the other end is connected to the outer surface of the fixing frame. The fixing element is a bolt, which is screwed into the threaded hole, and the screwed-in end of the bolt abuts against the rotating rod.

[0016] Furthermore, the fixing frame includes a fixing frame body and a plurality of sliders. The plurality of sliders are all disposed on the fixing frame body in a manner that allows them to slide along the straight line direction. The plurality of sliders correspond one-to-one with the plurality of climbing frames, and the plurality of sliders also correspond one-to-one with the plurality of worm gear assemblies.

[0017] The slider has a receiving cavity, and the upper and lower side walls of the receiving cavity are both formed with circular holes. The two circular holes are arranged coaxially. The two opposite side walls of the receiving cavity are both formed with through holes at the positions corresponding to the rotating rod.

[0018] The worm gear assembly also includes two rings, which are fixedly disposed at the upper and lower ends of the worm gear in a corresponding manner, and the rings are arranged coaxially with the worm gear.

[0019] The worm gear and worm are located in the corresponding receiving cavity, the two rings are rotatably fitted into the two holes on the slider, the rotating rod is located in the two through holes on the slider, and the lower part of the climbing frame is located in the two rings;

[0020] The multiple placement baskets are fixedly connected to the multiple sliders in a one-to-one correspondence.

[0021] Furthermore, the outer surface of the fixing frame is recessed to form a sliding groove, the groove opening size is smaller than the groove cavity size, the sliding groove is arranged along the straight line direction, and the slider slides and engages in the groove cavity.

[0022] Furthermore, the fixing frame also includes multiple locking components, all of which are disposed on the fixing frame and are correspondingly disposed on the multiple sliders. The locking components are used to lock the position of the sliders in the linear direction.

[0023] Furthermore, the fixing frame body has a plurality of insertion holes, which are arranged at intervals along the straight line direction;

[0024] The locking assembly includes a connecting frame, a connecting plate, a locking rod, a disc, and a spring. The connecting frame is fixed to the slider, the connecting plate is fixed to the connecting frame, the locking rod is slidably disposed on the connecting plate in a manner that allows it to slide toward and away from the insertion hole, the disc is fixed to the locking rod and located between the insertion hole and the connecting plate, and one end of the spring is fixedly connected to the connecting plate and the other end is fixedly connected to the disc.

[0025] The beneficial effects of this utility model are as follows:

[0026] The operator can reduce safety hazards when pruning the watermelon vines on the top of the climbing frame of the watermelon soilless cultivation device described in this utility model.

[0027] Other advantages, objectives, and features of this invention will be set forth in part in the description which follows, and in part will be apparent to those skilled in the art from the following examination and study, or may be learned from practice of this invention. The objectives and other advantages of this invention can be realized and obtained through the following description. Attached Figure Description

[0028] Figure 1 This is a schematic diagram of the soilless cultivation device for watermelons according to this utility model;

[0029] Figure 2 for Figure 1 A magnified view of a section at point A in the middle;

[0030] Figure 3 This is a top view of the hydroponic watermelon cultivation device of this utility model;

[0031] Figure 4 for Figure 3 AA section view;

[0032] Figure 5 for Figure 4 A magnified view of a section at point B in the middle;

[0033] Figure 6 for Figure 3 BB cross-sectional view.

[0034] In the diagram: 1. Fixing frame; 2. Culture tank; 3. Placement basket; 4. Climbing frame; 5. Guide groove; 6. Guide rod; 7. External thread; 8. Worm gear; 9. Worm; 10. Rotating rod; 11. Shaft hole; 12. Slot; 13. Bolt; 14. Slider; 15. Receiving cavity; 16. Ring; 17. Slide groove; 18. Insertion hole; 19. Connecting frame; 20. Connecting plate; 21. Locking rod; 22. Disc; 23. Spring; 24. Crossbar. Detailed Implementation

[0035] To make the objectives, technical solutions, and advantages of the embodiments of this utility model clearer, the technical solutions of the embodiments of this utility model will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this utility model, and not all embodiments. The components of the embodiments of this utility model described and shown in the accompanying drawings can generally be arranged and designed in various different configurations.

[0036] Therefore, the following detailed description of the embodiments of the present invention provided in the accompanying drawings is not intended to limit the scope of the claimed invention, but merely to illustrate selected embodiments of the invention. All other embodiments obtained by those skilled in the art based on the embodiments of the present invention without inventive effort are within the scope of protection of the present invention.

[0037] It should be noted that similar labels and letters in the following figures indicate similar items. Therefore, once an item is defined in one figure, it does not need to be further defined and explained in subsequent figures.

[0038] In the above description of this utility model, it should be noted that the terms "one side," "the other side," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings, or the orientation or positional relationship commonly used when the utility model product is in use. They are only for the convenience of describing this utility model and 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 utility model. In addition, the terms "first," "second," etc., are only used to distinguish descriptions and should not be construed as indicating or implying relative importance.

[0039] Furthermore, terms such as "identical" do not imply that components must be absolutely identical; minor differences are permissible. The term "perpendicular" simply means that the positional relationship between components is more perpendicular than "parallel," not that the structure must be perfectly perpendicular; a slight tilt is acceptable.

[0040] Please see Figure 1-6 This utility model provides a technical solution: a soilless cultivation device for watermelons, including a fixed frame 1, a cultivation trough 2, a placement basket 3, a climbing frame 4, and a fixing part. The upper end of the cultivation trough 2 is open, and the cultivation trough 2 is fixed on the fixed frame 1. The placement basket 3 is placed on the fixed frame 1, and the upper end of the placement basket 3 is open. Multiple through holes are formed on the basket wall of the placement basket 3. The lower part of the placement basket 3 is located inside the cultivation trough 2. The climbing frame 4 is slidably mounted on the fixed frame 1, and the fixing part is used to fix the height of the climbing frame 4.

[0041] In the initial state, the top of the climbing frame 4 is at a relatively high height, specifically, the height of the top of the climbing frame 4 is 2.5m-3m, so that the climbing frame 4 has sufficient height for the watermelon vines to climb.

[0042] When cultivating watermelons hydroponically, watermelon seeds are first raised and cultured. After the seedlings have grown 2-3 true leaves, they are transplanted. The operator places the watermelon seedlings and root substrate together in the placement basket 3, and then adds nutrient solution to the culture trough 2, so that the nutrient solution covers 1 / 3 to 1 / 2 of the height of the watermelon seedling roots, thereby ensuring that the roots of the watermelon seedlings can absorb enough substances to ensure normal growth.

[0043] In the hydroponic cultivation of watermelons, the operator needs to lightly tie the base of the watermelon vine stem to the climbing frame 4. During the subsequent growth process, the watermelon vine will twine around the climbing frame 4 with tendrils and grow upward along the climbing frame 4.

[0044] After the watermelon vines grow to the top of the climbing frame 4, when the operator needs to prune the watermelon vines at the top of the climbing frame 4, the climbing frame 4 is slid downwards on the fixed frame 1, which simultaneously lowers the watermelon vines at the top of the climbing frame 4. After the climbing frame 4 has slid downwards a certain distance, the operator can prune the watermelon vines at the top of the climbing frame 4 from the ground without the need for a stool or A-frame ladder. This reduces safety hazards during the pruning process of the watermelon vines at the top of the climbing frame 4 of the watermelon hydroponics device described in this utility model.

[0045] After trimming, slide the climbing frame 4 upwards on the fixed frame 1 and return it to the initial state described above.

[0046] In this embodiment, the fixing part is also used to drive the climbing frame 4 to slide up and down.

[0047] When the climbing frame 4 slides downward on the fixed frame 1, the climbing frame 4 is specifically driven to slide downward through the fixed part. When the climbing frame 4 slides upward on the fixed frame 1, the climbing frame 4 is specifically driven to slide upward through the fixed part.

[0048] In this embodiment, the lower outer side of the climbing frame 4 is recessed inward to form a guide groove 5, and the guide groove 5 is arranged vertically.

[0049] A guide rod 6 is fixedly installed inside the fixing frame 1. The guide rod 6 is located inside the guide groove 5 and cooperates with the guide groove 5.

[0050] With this structure, the climbing frame 4 can be slidably mounted on the fixed frame 1.

[0051] In this embodiment, the lower part of the climbing frame 4 is cylindrical, and an external thread 7 is formed on the outer periphery of the lower part of the climbing frame 4.

[0052] The fixing part includes a worm gear assembly and a drive assembly. The worm gear assembly includes a worm gear 8 and a worm 9. The worm gear 8 is rotatably connected to the fixing frame 1. A threaded hole is formed on the worm gear 8, and the threaded hole is coaxial with the worm gear 8. The worm gear 8 is threadedly connected to the lower part of the climbing frame 4 through the threaded hole. The worm 9 is rotatably connected to the fixing frame 1, and the worm 9 meshes with the worm gear 8. The drive assembly is used to drive the worm 9 to rotate, and the drive assembly is also used to lock the rotation of the worm 9 so that the worm 9 cannot rotate.

[0053] The rotation of the worm gear 9 is locked by the drive assembly, preventing the worm gear 9 from rotating. Consequently, the worm wheel 8 also cannot rotate, and the climbing frame 4 cannot be raised or lowered. With this structure, the fixing part can fix the height of the climbing frame 4.

[0054] When the climbing frame 4 needs to slide up or down, the operator drives the worm gear 9 to rotate via the drive assembly. The worm gear 9 drives the worm wheel 8 to rotate. During the rotation of the worm wheel 8, the climbing frame 4 can slide up or down under the combined action of the screw hole and the external thread 7 on the lower outer periphery of the climbing frame 4. The guide groove 5 at the lower part of the climbing frame 4 and the guide rod 6 on the fixing frame 1 prevent the climbing frame 4 from rotating synchronously with the worm wheel 8. With this structure, the fixing part can drive the climbing frame 4 to slide up and down.

[0055] In this embodiment, there are multiple climbing frames 4 and multiple placement baskets 3, with each placement basket 3 corresponding to one of the multiple climbing frames 4. When watermelons are planted on the hydroponic watermelon cultivation device of this invention, the watermelon vines planted in the placement baskets 3 climb on the corresponding climbing frames 4, and the hydroponic watermelon cultivation device of this invention can plant multiple watermelon plants simultaneously.

[0056] In this embodiment, multiple climbing frames 4 are arranged sequentially at intervals along a straight line. There are multiple worm gear assemblies, and each worm gear assembly corresponds one-to-one with a multiple climbing frame 4. The worm gear 8 included in the worm gear assembly is threadedly connected to the lower part of the corresponding climbing frame 4 through the screw hole. The driving component is used to synchronously drive the worm 9 included in the multiple worm gear assemblies to rotate. The driving component is also used to synchronously lock the rotation of the worm 9 of the multiple worm gear assemblies.

[0057] The drive assembly can synchronously drive multiple worm gears 9 to rotate, and the multiple worm gears 9 can synchronously drive multiple worm wheels 8 to rotate, and the multiple worm wheels 8 can synchronously drive multiple climbing frames 4 to slide up and down.

[0058] After all the climbing frames 4 have slid upward to the initial state described above, the rotation of the worms 9 of the multiple worm gear assemblies is locked synchronously by the drive component, so that the multiple worms 9 cannot rotate. At this time, the multiple worm wheels 8 also cannot rotate, and the height of the multiple climbing frames 4 is synchronously fixed.

[0059] The hydroponic watermelon cultivation device of this invention enables multiple climbing frames 4 to slide up and down synchronously, and also allows the height of multiple climbing frames 4 to be fixed synchronously, making the hydroponic watermelon cultivation device of this invention more convenient to use.

[0060] In this embodiment, a channel is formed in the middle of each of the multiple worm gears 9, and the multiple channels are located on the same axis. The channels are arranged parallel to the straight line direction, and a locking block protrudes from the side wall of the channel.

[0061] The driving assembly includes a rotating rod 10 and a fixing member. The rotating rod 10 is rotatably connected to the fixing frame 1. The rotating rod 10 is located in a plurality of the channels. The outer surface of the rotating rod 10 is recessed inward to form a slot 12. The slot 12 is arranged parallel to the straight line direction and accommodates a plurality of the locking blocks. The slot 12 cooperates with the locking blocks. The fixing member is used to fix the rotating rod 10 so that the rotating rod 10 cannot rotate.

[0062] With the cooperation of the slot 12 and the locking block, the worm 9 cannot rotate relative to the rotating rod 10. Rotating the rotating rod 10 allows it to simultaneously drive multiple worms 9 to rotate. In this structure, the drive assembly can simultaneously drive the worms 9 included in multiple worm gear assemblies to rotate. This is convenient for simultaneously driving the worms 9 included in multiple worm gear assemblies to rotate.

[0063] The rotating rod 10 is fixed by the fixing member so that it cannot rotate. At this time, the multiple worm gears 9 cannot rotate. With this structure, the drive assembly can simultaneously lock the rotation of the worm gears 9 of the multiple worm gear assemblies.

[0064] In this embodiment, the fixed frame 1 has two shaft holes 11, and the two ends of the rotating rod 10 are respectively rotatably fitted into the two shaft holes 11. With this structure, the rotating rod 10 can be rotatably connected to the fixed frame 1. The worm gear 9 can be rotatably connected to the fixed frame 1 through the rotating rod 10.

[0065] In this embodiment, a threaded hole is formed on the fixing frame 1. One end of the threaded hole is connected to the shaft hole 11, and the other end is connected to the outer surface of the fixing frame 1. The fixing member is a bolt 13, which is screwed into the threaded hole. The screw-in end of the bolt 13 abuts against the rotating rod 10.

[0066] In the initial state, the bolt 13 is screwed into the threaded hole, and the screw-in end of the bolt 13 abuts against and tightens the rotating rod 10 to fix the rotating rod 10. At this time, the fixing member can fix the rotating rod 10 so that the rotating rod 10 cannot rotate.

[0067] When it is necessary to rotate the rotating rod 10, the bolt 13 is rotated in the threaded hole to move the bolt 13 away from the rotating rod 10, so that the bolt 13 is separated from the surface of the rotating rod 10. At this time, the locking of the fixing member to the rotating rod 10 can be released.

[0068] In this embodiment, the fixing frame 1 includes a fixing frame body and a plurality of sliders 14. The plurality of sliders 14 are all disposed on the fixing frame body in a manner that allows them to slide along the straight line direction. The plurality of sliders 14 correspond one-to-one with the plurality of climbing frames 4. The plurality of sliders 14 also correspond one-to-one with the plurality of worm gear assemblies.

[0069] The slider 14 has a cavity 15, and the upper and lower side walls of the cavity 15 have circular holes. The two circular holes are arranged coaxially. The two opposite side walls of the cavity 15 have through holes at the positions corresponding to the rotating rod 10.

[0070] The worm gear assembly also includes two rings 16, which are fixedly disposed at the upper and lower ends of the worm gear 8 in a one-to-one correspondence, and the rings 16 are arranged coaxially with the worm gear 8.

[0071] The worm gear 8 and worm 9 are located in the corresponding receiving cavity 15, the two rings 16 are rotatably fitted into the two holes on the slider 14, the rotating rod 10 is located in the two through holes on the slider 14, and the lower part of the climbing frame 4 is located in the two rings 16.

[0072] The multiple placement baskets 3 are fixedly connected to the multiple sliders 14 in a one-to-one correspondence.

[0073] Since the two rings 16 are rotatably fitted into the two holes on the slider 14 in a one-to-one correspondence, the worm gear 8 can be rotatably connected to the fixed frame 1.

[0074] The guide groove 5 extends through two opposite sides of the lower part of the climbing frame 4. The guide rod 6 is located within the multiple guide grooves 5 and is arranged along the straight line. Both ends of the guide rod 6 are fixedly connected to the frame body. The climbing frame 4 can slide along the straight line on the guide rod 6.

[0075] The slider 14 moves along the straight line on the fixed frame 1, causing the climbing frame 4, the placement basket 3, the worm gear 8, and the worm 9 to move synchronously. During the movement, the worm gear 8 and the worm 9 are always engaged, and the rotating rod 10 is fixed and cannot rotate. The distance between each pair of adjacent sliders 14 can be adjusted, thereby adjusting the distance between each pair of adjacent watermelon plants to ensure a suitable spacing. Different varieties of watermelon require different planting distances. Because the soilless watermelon cultivation device of this invention can adjust the distance between watermelon plants, it is suitable for planting different types of watermelons.

[0076] In this embodiment, a groove 17 is recessed on the outer surface of the fixing frame 1. The opening size of the groove 17 is smaller than the cavity size. The groove 17 is arranged along the straight line direction, and the slider 14 is slidably engaged within the cavity of the groove 17. With this structure, the slider 14 can be slidably mounted on the fixing frame body in a manner that allows it to slide along the straight line direction.

[0077] In this embodiment, the fixing frame 1 further includes a plurality of locking components, all of which are disposed on the fixing frame 1 and are respectively disposed on the plurality of sliders 14. The locking components are used to lock the position of the sliders 14 in the straight line direction.

[0078] After adjusting the spacing between each pair of adjacent watermelons to a suitable size, the positions of the multiple sliders 14 in the straight line direction can be locked one-to-one by the multiple locking components, thereby fixing the position of each watermelon in the straight line direction and keeping the spacing between each pair of adjacent watermelons fixed.

[0079] In this embodiment, a plurality of insertion holes 18 are formed on the fixing frame body, and the plurality of insertion holes 18 are arranged sequentially at intervals along the straight line direction;

[0080] The locking assembly includes a connecting frame 19, a connecting plate 20, a locking rod 21, a disc 22, and a spring 23. The connecting frame 19 is fixed to the slider 14, the connecting plate 20 is fixed to the connecting frame 19, the locking rod 21 is slidably disposed on the connecting plate 20 in a manner that allows it to slide toward and away from the insertion hole 18, the disc 22 is fixed to the locking rod 21 and located between the insertion hole 18 and the connecting plate 20, and one end of the spring 23 is fixedly connected to the connecting plate 20 and the other end is fixedly connected to the disc 22.

[0081] In the initial state, the spring 23 provides a pushing force to the disk 22 toward the insertion hole 18, keeping the locking rod 21 inserted into the insertion hole 18. Under the combined action of the locking rod 21 and the insertion hole 18, the position of the slider 14 in the linear direction can be fixed, preventing the slider 14 from moving on the mounting body. With this structure, the locking assembly can lock the position of the slider 14 in the linear direction.

[0082] When it is necessary to move the slider 14, the operator pulls the locking lever 21 away from the socket 18. The locking lever 21 drives the disc 22 to move away from the socket 18, which further compresses the spring 23 and completely pulls the locking lever 21 out of the socket 18. After the locking lever 21 is completely pulled out of the socket 18, the locking component can be released from locking the slider 14, and the slider 14 can then slide along the straight line on the fixed frame 1.

[0083] After moving the slider 14 to the appropriate position, the position of the slider 14 in the straight line direction is finely adjusted so that the locking rod 21 is aligned with the nearest insertion hole 18. The locking rod 21 is released, and under the action of the spring 23, the spring 23 can push the locking rod 21 toward the insertion hole 18, so that the locking rod 21 is inserted into the insertion hole 18 that is aligned with it at this time. At this time, the locking assembly can relock the position of the slider 14 in the straight line direction.

[0084] In this embodiment, a hole is formed on the connecting plate 20 at the position corresponding to the locking rod 21. The locking rod 21 is slidably fitted into the hole. The hole is coaxial with the insertion hole 18. Thus, the locking rod 21 can be slidably mounted on the connecting plate 20 in a manner that can face towards and away from the insertion hole 18.

[0085] In this embodiment, the placement basket 3 is fixedly connected to the slider 14 through the connecting frame 19, so that the placement basket 3 can be fixedly connected to the corresponding slider 14.

[0086] In this embodiment, the climbing frame 4 includes a climbing frame body and multiple crossbars 24. The crossbars 24 are all fixed to the climbing frame body and are arranged sequentially at intervals from the top of the climbing frame 4 downwards. With this structure, during subsequent growth, the watermelon vines can twine around the crossbars 24 of the climbing frame 4 via tendrils and grow upwards along the climbing frame 4.

[0087] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of this utility model and are not intended to limit it. Although this utility model has been described in detail with reference to preferred embodiments, those skilled in the art should understand that modifications or equivalent substitutions can be made to the technical solutions of this utility model without departing from the spirit and scope of the technical solutions of this utility model, and all such modifications or substitutions should be covered within the scope of the claims of this utility model.

Claims

1. A hydroponic watermelon cultivation device, comprising a fixing frame (1), a cultivation trough (2), a placement basket (3), a climbing frame (4), and a fixing part, characterized in that: The upper end of the culture tank (2) is open, the culture tank (2) is fixed on the fixed frame (1), the placement basket (3) is set on the fixed frame (1), the upper end of the placement basket (3) is open, multiple through holes are formed on the basket wall of the placement basket (3), the lower part of the placement basket (3) is located in the culture tank (2), the climbing frame (4) is slidably set on the fixed frame (1), and the fixing part is used to fix the height of the climbing frame (4).

2. The hydroponic cultivation device for watermelons according to claim 1, characterized in that: The lower outer side of the climbing frame (4) is recessed inward to form a guide groove (5), which is arranged vertically. The fixed frame (1) is provided with a guide rod (6), which is located in the guide groove (5) and cooperates with the guide groove (5).

3. The hydroponic cultivation device for watermelons according to claim 2, characterized in that: The lower part of the climbing frame (4) is cylindrical, and an external thread (7) is formed on the outer periphery of the lower part of the climbing frame (4). The fixing part includes a worm gear assembly and a drive assembly. The worm gear assembly includes a worm wheel (8) and a worm (9). The worm wheel (8) is rotatably connected to the fixing frame (1). A screw hole is formed on the worm wheel (8). The screw hole is coaxial with the worm wheel (8). The worm wheel (8) is threadedly connected to the lower part of the climbing frame (4) through the screw hole. The worm (9) is rotatably connected to the fixing frame (1). The worm (9) meshes with the worm wheel (8).

4. The hydroponic cultivation device for watermelons according to claim 3, characterized in that: There are multiple climbing frames (4) and multiple placement baskets (3); Multiple climbing frames (4) are arranged sequentially at intervals along a straight line. There are multiple worm gear assemblies, and each of the multiple worm gear assemblies corresponds to one of the multiple climbing frames (4). The worm gear (8) included in the worm gear assembly is threadedly connected to the lower part of the corresponding climbing frame (4) through the screw hole. The drive assembly is used to synchronously drive the worm (9) included in the multiple worm gear assemblies to rotate. The drive assembly is also used to synchronously lock the rotation of the worm (9) of the multiple worm gear assemblies.

5. The hydroponic cultivation device for watermelons according to claim 4, characterized in that: Multiple worms (9) have channels formed in the middle, and the multiple channels are located on the same axis. The channels are arranged parallel to the straight line direction, and a locking block protrudes from the side wall of the channel. The drive assembly includes a rotating rod (10) and a fixing member. The rotating rod (10) is rotatably connected to the fixing frame (1). The rotating rod (10) is located in a plurality of the channels. The outer surface of the rotating rod (10) is recessed inward to form a slot (12). The slot (12) is arranged in a direction parallel to the straight line. The slot (12) accommodates a plurality of the locking blocks. The slot (12) cooperates with the locking blocks.

6. The hydroponic cultivation device for watermelons according to claim 5, characterized in that: The fixing frame (1) has two shaft holes (11), and the two ends of the rotating rod (10) are respectively rotatably fitted into the two shaft holes (11); the fixing frame (1) has a threaded hole, one end of the threaded hole is connected to the shaft hole (11) and the other end is connected to the outer surface of the fixing frame; the fixing member is a bolt (13), the bolt (13) is screwed into the threaded hole, and the screw-in end of the bolt (13) abuts against the rotating rod (10).

7. The hydroponic cultivation device for watermelons according to claim 5, characterized in that: The fixing frame (1) includes a fixing frame body and a plurality of sliders (14). The plurality of sliders (14) are all arranged on the fixing frame body in a manner that allows them to slide along the straight line direction. The plurality of sliders (14) correspond one-to-one with the plurality of climbing frames (4). The plurality of sliders (14) also correspond one-to-one with the plurality of worm gear assemblies. The slider (14) has a cavity (15) inside. The upper and lower side walls of the cavity (15) are formed with circular holes. The two circular holes are arranged on the same axis. The two opposite side walls of the cavity (15) are formed with through holes at the positions corresponding to the rotating rod (10). The worm gear assembly also includes two rings (16), which are fixed to the upper and lower ends of the worm gear (8) in a one-to-one correspondence. The rings (16) are coaxial with the worm gear (8). The worm gear (8) and worm (9) are located in the corresponding receiving cavity (15), the two rings (16) are rotatably fitted in the two holes on the slider (14), the rotating rod (10) is located in the two through holes on the slider (14), and the lower part of the climbing frame (4) is located in the two rings (16). The multiple placement baskets (3) are fixedly connected to the multiple sliders (14) in a one-to-one correspondence.

8. The hydroponic cultivation device for watermelons according to claim 7, characterized in that: The outer surface of the fixing frame (1) is recessed to form a groove (17). The groove opening size of the groove (17) is smaller than the cavity size. The groove (17) is arranged along the straight line direction. The slider (14) is slidably fitted in the cavity of the groove (17).

9. The hydroponic cultivation device for watermelons according to claim 7, characterized in that: The fixing frame (1) also includes multiple locking components, all of which are disposed on the fixing frame (1) and are respectively disposed on the multiple sliders (14). The locking components are used to lock the sliders (14) at their positions in the straight line direction.

10. The hydroponic cultivation device for watermelons according to claim 9, characterized in that: The mounting bracket body has a plurality of insertion holes (18), and the plurality of insertion holes (18) are arranged sequentially at intervals along the straight line direction; The locking assembly includes a connecting frame (19), a connecting plate (20), a locking rod (21), a disc (22), and a spring (23). The connecting frame (19) is fixed on the slider (14), the connecting plate (20) is fixed on the connecting frame (19), the locking rod (21) is slidably disposed on the connecting plate (20) in a manner that allows it to slide toward and away from the insertion hole (18), the disc (22) is fixed on the locking rod (21) and located between the insertion hole (18) and the connecting plate (20), and one end of the spring (23) is fixedly connected to the connecting plate (20) and the other end is fixedly connected to the disc (22).

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