Seedling raising frame for watermelon planting

Abstract

The utility model belongs to the technical field of agricultural planting equipment, and particularly relates to a watermelon planting seedling raising frame which comprises a base, a supporting frame and a plurality of laminates, the laminates are connected to the inner side of the supporting frame in a sliding mode, a rolling top rod is arranged at the top end of the supporting frame, and two pulling ropes are rolled on the side wall of the rolling top rod. A plurality of positioning rings are installed on the side wall of the traction rope, a lower belt wheel is arranged on one side of the supporting frame, an upper belt wheel is installed at one end of the winding ejector rod, and a transmission belt is arranged between the upper belt wheel and the lower belt wheel. A plurality of laminates are subjected to lifting regulation and control through a rolling top rod, a traction rope and a lower belt pulley, so that the uppermost laminate descends to a height which is convenient for personnel to contact and observe, operations such as grafting are facilitated, the height of the laminates is simply, conveniently and efficiently adjusted, and particularly, the upper laminates are quickly adjusted to a proper operation height. The seedling raising efficiency and quality are improved.

Description

Technical Field

[0001] This utility model belongs to the field of agricultural planting equipment technology, specifically relating to a watermelon planting and seedling raising rack. Background Technology

[0002] In the watermelon planting industry, cultivating high-quality seedlings is the key to high yields and bumper harvests. Multi-layer watermelon seedling racks are widely used because of their stable structure, efficient use of vertical space, and ability to increase the number of seedlings and space utilization.

[0003] However, problems exist in practical use: grafting watermelon seedlings is a crucial step, but the upper shelves of existing multi-layer seedling racks are high off the ground. Operators must spend extended periods raising their arms or using climbing tools during grafting, increasing the difficulty of the operation, making it difficult to guarantee grafting accuracy, and easily causing arm fatigue, affecting efficiency and quality, and increasing the risk of seedling damage. While some seedling racks consider shelf height adjustment, lowering the top shelf to a suitable operating height requires adjusting multiple shelves individually, a time-consuming, labor-intensive, and complex process. In large-scale seedling production scenarios, this severely impacts work efficiency and increases labor costs. Utility Model Content

[0004] This utility model provides a watermelon planting and seedling raising rack, which is characterized by facilitating the operation of watermelon seedlings on the upper shelves.

[0005] This utility model provides the following technical solution: it includes a base, a support frame, and several shelves. The shelves are slidably connected to the inner side of the support frame. A winding top rod is provided at the top of the support frame. Two traction ropes are wound around the side wall of the winding top rod. One end of each traction rope is installed at the bottom end of the support frame. Both traction ropes pass through the bottom ends of the shelves. Several positioning rings are installed on the side wall of the traction ropes. Every two positioning rings clamp the two ends of the corresponding shelf. A lower pulley is provided on one side of the support frame. An upper pulley is installed at one end of the winding top rod. A transmission belt is provided between the upper pulley and the lower pulley.

[0006] Each of the several shelves has two shielding boxes installed at its top. The traction rope corresponds to the position of the shielding box, and the positions of the two shielding boxes are symmetrically distributed. Each of the shielding boxes has a buffer washer installed at its top, and the buffer washer contacts the bottom of the support frame above.

[0007] The support frame has two winding covers installed at its top, and the winding top rod is rotatably connected to the inner wall of the two winding covers. The two traction ropes are respectively wound inside the corresponding winding covers.

[0008] The support frame is equipped with four guide slide rods on its inner side, and several of the layer plates are slidably connected to the side walls of the four guide slide rods.

[0009] The lower pulley has a rotating rod installed on one side, and a handle is rotatably connected to one side of the rotating rod. A plug rod is slidably connected to the inner wall of the handle. Two positioning rods are installed on one side of the support frame. One end of the positioning rod has a slot, and the plug rod is inserted into the inner wall of the slot. A magnetic ball is fixedly connected to the end of the plug rod, and the magnetic ball is magnetically attracted to the inner wall of the slot.

[0010] The push plate is fixedly connected to one end of the insertion rod, and two connecting plates are fixedly connected to one side of the push plate. A connecting ring is fixedly connected between the two connecting plates. The connecting ring is slidably connected to the side wall of the handle. Limiting protrusions are fixedly connected to both sides of the handle, and the connecting ring contacts the side wall of the limiting protrusions.

[0011] The support frame is rotatably connected to the lower pulley by a speed reducer, a damping layer is provided between the speed reducer and the support frame, a plurality of spring-loaded wedges are slidably connected to the inner wall of the lower pulley, a slot is provided on one side of the speed reducer, and the spring-loaded wedges are engaged with the inner wall of the slot.

[0012] The beneficial effects of this utility model are: by using a top rod, traction rope and lower pulley to adjust the height of several shelves, the top shelf can be lowered to a height that is easy for personnel to access and observe, thus facilitating grafting and other operations. This achieves a new type of seedling rack that allows for simple and efficient adjustment of shelf height, especially for quickly adjusting the upper shelf to a suitable operating height, thereby improving seedling efficiency and quality.

[0013] The parts of the device not covered herein are the same as or can be implemented using existing technologies. Attached Figure Description

[0014] Figure 1 This is a three-dimensional structural diagram of the present invention;

[0015] Figure 2 This is a three-dimensional structural diagram of the supporting frame and other components in this utility model;

[0016] Figure 3 for Figure 2 Enlarged diagram of section A in the middle;

[0017] Figure 4 This is a three-dimensional enlarged structural diagram of the lower pulley in this utility model. Figure 1 ;

[0018] Figure 5 This is a three-dimensional enlarged structural diagram of the lower pulley in this utility model. Figure 2 .

[0019] In the diagram: 1. Base; 2. Support frame; 21. Shelf; 22. Shelf box; 23. Buffer washer; 24. Winding cover; 25. Guide slide rod; 26. Positioning rod; 261. Slot; 3. Winding top rod; 31. Traction rope; 311. Positioning ring; 32. Upper pulley; 33. Transmission belt; 4. Lower pulley; 41. Rotating rod; 42. Handle; 421. Limiting protrusion; 43. Insert rod; 431. Magnetic ball; 44. Push plate; 441. Connecting plate; 442. Connecting ring; 45. Spring-loaded wedge plate; 5. Reducer; 51. Slot. Detailed Implementation

[0020] Please see Figures 1-5 The present invention provides the following technical solution: including a base 1, a support frame 2 and several shelves 21, the shelves 21 are slidably connected to the inner side of the support frame 2, a winding top rod 3 is provided at the top of the support frame 2, two traction ropes 31 are wound on the side wall of the winding top rod 3, one end of each traction rope 31 is installed at the bottom of the support frame 2, and the two traction ropes 31 pass through the bottom of the shelves 21, several positioning rings 311 are installed on the side wall of the traction ropes 31, and each pair of positioning rings 311 are clamped to the two ends of the corresponding shelf 21, a lower pulley 4 is provided on one side of the support frame 2, an upper pulley 32 is installed at one end of the winding top rod 3, and a transmission belt 33 is provided between the upper pulley 32 and the lower pulley 4.

[0021] In this implementation scheme: the base 1 provides bottom support for all components of the device; the support frame 2 is the overall external frame of the seedling rack; several shelves 21 are arranged vertically inside the support frame 2; the winding top rod 3 is located at the top of the device; the winding top rod 3 winds up two traction ropes 31, each corresponding to one end of a shelf 21; when the traction ropes 31 are wound up by the winding top rod 3, the two traction ropes 31 can drive the shelves 21 upward through the positioning rings 311, rising one by one starting from the topmost traction rope 31; when the winding top rod 3 unwinds the traction ropes 31, the shelves 21 descend one by one starting from the bottom; the winding top rod 3 is connected to the lower pulley 4 through the upper pulley 32 and the transmission belt 33; the lower pulley 4 is located at the bottom side of the support frame 2, making it easy for personnel to control the lower pulley 4; by controlling the forward and reverse rotation of the lower pulley 4, the lifting and lowering adjustment of the shelves 21 can be achieved, which is simple and convenient to operate. When grafting watermelon seedlings, the lower pulley 4 is rotated in the opposite direction, which in turn drives the upper pulley 32 to rotate in the opposite direction via the transmission belt 33. The upper pulley 32 then drives the winding top rod 3 to rotate in the opposite direction. The winding top rod 3 unwinds the two traction ropes 31, causing several shelves 21 to begin to descend. The shelves 21 gradually descend to a lower position, bringing the top shelf 21 to a height that is easy for personnel to access and observe, thus facilitating grafting and other operations. After the operation is completed, the lower pulley 4 is rotated in the forward direction, allowing the winding top rod 3 to wind up the traction ropes 31, completing the lifting action of several shelves 21. Furthermore, the bottom ends of the two traction ropes 31 are fixed to the bottom of the support frame 2. The tension of the two traction ropes 31 locks several shelves 21 at a fixed height, thus realizing a new type of seedling rack that allows for simple and efficient adjustment of shelf height, especially quickly adjusting the upper shelf to a suitable operating height, thereby improving seedling efficiency and quality.

[0022] Each of the several shelves 21 has two shielding boxes 22 installed at its top. The traction rope 31 corresponds to the position of the shielding box 22, and the two shielding boxes 22 are symmetrically distributed. Each of the shielding boxes 22 has a buffer washer 23 installed at its top, and the buffer washer 23 contacts the bottom of the upper support frame 2. The support frame 2 supports the two shielding boxes 22. When the shielding box 22 contacts the upper support frame 2 through the buffer washer 23, it provides shock absorption and flexible protection. The gap between the two support frames 2 is created by the shielding box 22 and the buffer washer 23 to prevent damage to the watermelon seedlings. When the shelf 21 is raised, it is convenient to collect sunlight.

[0023] Two take-up covers 24 are installed at the top of the support frame 2. The take-up top rod 3 is rotatably connected to the inner wall of the two take-up covers 24. The two traction ropes 31 are respectively wound inside the corresponding take-up covers 24. The support frame 2 supports the take-up top rod 3 through the two take-up covers 24. The connection point between the take-up top rod 3 and the traction rope 31 is located inside the take-up cover 24. The take-up cover 24 accommodates and protects the winding part of the traction rope 31.

[0024] Four guide rods 25 are installed on the inner side of the support frame 2, and several shelves 21 are slidably connected to the side walls of the four guide rods 25. The support frame 2 guides and limits the several shelves 21 when raising and lowering them through the four guide rods 25, so as to prevent the shelves 21 from tilting or shifting.

[0025] A rotating rod 41 is installed on one side of the lower pulley 4. A handle 42 is rotatably connected to one side of the rotating rod 41. An insert rod 43 is slidably connected to the inner wall of the handle 42. Two positioning rods 26 are installed on one side of the support frame 2. A slot 261 is opened at one end of the positioning rod 26. The insert rod 43 is inserted into the inner wall of the slot 261. A magnetic ball 431 is fixedly connected to the end of the insert rod 43. The magnetic ball 431 is magnetically attracted to the inner wall of the slot 261. The rotating rod 41 and the handle 42 facilitate the operator to control the lower pulley 4. By holding the handle 42 and pushing the rotating rod 41, the rotation of the lower pulley 4 can be adjusted. After adjustment, the insert rod 43 is inserted into the slot 261. The support frame 2 limits the lower pulley 4 through the positioning rod 26 to ensure the stability of the shelf 21 at a fixed height. When the magnetic ball 431 is inserted into the slot 261, the connection is more stable due to the attraction between the magnetic ball 431 and the magnet inside the positioning rod 26.

[0026] A push plate 44 is fixedly connected to one end of the insertion rod 43. Two connecting plates 441 are fixedly connected to one side of the push plate 44. A connecting ring 442 is fixedly connected between the two connecting plates 441. The connecting ring 442 is slidably connected to the side wall of the handle 42. Limiting protrusions 421 are fixedly connected to both sides of the handle 42. The connecting ring 442 contacts the side wall of the limiting protrusions 421. The push plate 44 is located at the tail end of the insertion rod 43. The push plate 44 prevents the insertion rod 43 from being inserted too deeply. The push plate 44 supports the connecting ring 442 through the two connecting plates 441. When the handle 42 is unlocked, the hand holds the handle 42 and slides the hand to push the connecting ring 442. The connecting ring 442 cannot be disengaged after being limited by the limiting protrusions 421. The insertion rod 43 can be pulled out of the slot 261. Then the handle 42 can be rotated directly.

[0027] A reduction gear 5 is rotatably connected between the support frame 2 and the lower pulley 4. A damping layer is provided between the reduction gear 5 and the support frame 2. Several spring-loaded wedges 45 are slidably connected to the inner wall of the lower pulley 4. A slot 51 is provided on one side of the reduction gear 5, and the spring-loaded wedges 45 are engaged with the inner wall of the slot 51. The lower pulley 4 is connected to the support frame 2 through the reduction gear 5. The lower pulley 4 rotates on one side of the reduction gear 5. The spring-loaded wedges 45 on one side of the lower pulley 4 and the lower pulley 4 both have elastic elements that push them outward. When rotating, the inclined surface of the spring-loaded wedge plate 45 contacts the slot 51 and the speed reducer 5. The speed reducer 5 does not obstruct the rotation of the lower pulley 4, allowing the lifting action of the shelf 21 to proceed normally. When the lower pulley 4 rotates in the opposite direction, the spring-loaded wedge plate 45 is inserted into the slot 51, causing the speed reducer 5 to rotate together. The damping layer between the speed reducer 5 and the support frame 2 applies resistance, providing buffered resistance when the shelf 21 is lowered, preventing situations where the weight of several shelves 21, watermelon seedlings, and culture medium is too large to control.

[0028] The working principle and usage process of this utility model are as follows: When grafting watermelon seedlings on the shelf 21, by holding the handle 42 and sliding the hand, the connecting ring 442 is pushed. The connecting ring 442 is limited by the limiting protrusion 421 and cannot be disengaged. The insertion rod 43 can be pulled out from the slot 261. Then, the handle 42 is rotated directly. The handle 42 drives the lower pulley 4 to rotate in the opposite direction through the rotating rod 41. The return wedge plate 45 is engaged in the slot 51, driving the reduction disc 5 to rotate together. The damping layer between the reduction disc 5 and the support frame 2 applies resistance, so that when the shelf 21 is lowered, there is a buffering resistance, preventing several shelves 21 from collapsing with the watermelon seedlings. When the quality of the melon seedlings and the cultivation substrate is large and difficult to control, the lower pulley 4 can drive the upper pulley 32 to rotate in the opposite direction via the transmission belt 33. The upper pulley 32 drives the winding top rod 3 to rotate in the opposite direction. The winding top rod 3 unwinds the two traction ropes 31, causing several layers 21 to begin to descend. Several layers 21 will gradually descend to a low position, so that the uppermost layer 21 is lowered to a height that is easy for personnel to access and observe, thus facilitating grafting and other operations. After the operation is completed, the lower pulley 4 is rotated in the forward direction, so that the winding top rod 3 can wind up the traction ropes 31, completing the lifting action of several layers 21.

Claims

1. A watermelon seedling cultivation rack, comprising a base (1), a support frame (2), and several shelves (21), characterized in that: Several of the shelves (21) are slidably connected to the inner side of the support frame (2). The top of the support frame (2) is provided with a winding top rod (3). The side wall of the winding top rod (3) is wound with two traction ropes (31). One end of each of the two traction ropes (31) is installed at the bottom of the support frame (2). The two traction ropes (31) pass through the bottom of several shelves (21). Several positioning rings (311) are installed on the side wall of the traction ropes (31). Each pair of positioning rings (311) clamps the two ends of the corresponding shelf (21). A lower pulley (4) is provided on one side of the support frame (2). An upper pulley (32) is installed at one end of the winding top rod (3). A transmission belt (33) is provided between the upper pulley (32) and the lower pulley (4).

2. The watermelon seedling cultivation rack according to claim 1, characterized in that: Each of the several shelves (21) has two shielding boxes (22) installed at its top. The traction rope (31) is positioned in relation to the shielding box (22). The two shielding boxes (22) are symmetrically distributed. Each of the shielding boxes (22) has a buffer washer (23) installed at its top. The buffer washer (23) is in contact with the bottom of the support frame (2) above.

3. The watermelon seedling cultivation rack according to claim 1, characterized in that: The top of the support frame (2) is equipped with two winding covers (24), and the winding top rod (3) is rotatably connected to the inner wall of the two winding covers (24). The two traction ropes (31) are respectively wound inside the corresponding winding covers (24).

4. The watermelon seedling cultivation rack according to claim 1, characterized in that: Four guide slide rods (25) are installed on the inner side of the support frame (2), and several of the layer plates (21) are slidably connected to the side walls of the four guide slide rods (25).

5. A watermelon seedling cultivation rack according to claim 1, characterized in that: A rotating rod (41) is installed on one side of the lower pulley (4), and a handle (42) is rotatably connected to one side of the rotating rod (41). A plug rod (43) is slidably connected to the inner wall of the handle (42). Two positioning rods (26) are installed on one side of the support frame (2). A slot (261) is opened at one end of the positioning rod (26). The plug rod (43) is inserted into the inner wall of the slot (261). A magnetic ball (431) is fixedly connected to the end of the plug rod (43). The magnetic ball (431) is magnetically attracted to the inner wall of the slot (261).

6. A watermelon seedling cultivation rack according to claim 5, characterized in that: One end of the insertion rod (43) is fixedly connected to a push plate (44), and two connecting plates (441) are fixedly connected to one side of the push plate (44). A connecting ring (442) is fixedly connected between the two connecting plates (441). The connecting ring (442) is slidably connected to the side wall of the handle (42). Limiting protrusions (421) are fixedly connected to both sides of the handle (42). The connecting ring (442) contacts the side wall of the limiting protrusions (421).

7. A watermelon seedling cultivation rack according to claim 1, characterized in that: A speed reducer (5) is rotatably connected between the support frame (2) and the lower pulley (4). A damping layer is provided between the speed reducer (5) and the support frame (2). Several spring-loaded wedges (45) are slidably connected to the inner wall of the lower pulley (4). A slot (51) is provided on one side of the speed reducer (5), and the spring-loaded wedges (45) are engaged with the inner wall of the slot (51).

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