Drip-proof flue-cured tobacco seedling raising shed
By setting up a rotating drainage plate and connecting seat on the roof wall of the greenhouse, the impact of water droplets on seedling cultivation is solved, the breeding of green algae is reduced, the clean and light of the seedling environment is ensured, and the normal growth of tobacco seedlings is achieved.
Patent Information
- Application Number
- CN202421017357.6
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-05-11
- Publication Date
- 2024-12-27
- Estimated Expiration
- 2034-05-11
AI Technical Summary
During the greenhouse seedling cultivation process, the water droplets on the top wall condense and slide due to the drop in the night temperature, which may splash out seeds and cover the seedlings, resulting in excessive humidity, causing green algae to breed and affect the growth of tobacco seedlings.
Design a drip-resistant flue-cured seedling shed. By setting up parallel drainage plates and connecting seats on the roof wall of the greenhouse, the driving components make the drainage plates receive water droplets in the first state and guide them to the side walls to prevent water droplets from falling into the seedling bed. And avoid blocking sunlight in the second state.
It effectively avoids the interference of water droplets on seeds and seedlings, reduces the breeding of green algae, ensures the clean and light of the seedling environment, and ensures the normal growth of tobacco seedlings.
Smart Images
Figure CN222235821U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the field of seedling raising greenhouses, in particular to a drip-proof flue-cured tobacco seedling raising greenhouse. Background Art
[0002] Compared with traditional seedling raising methods, greenhouse seedling raising has the advantages of low labor input and short seedling growth time, which saves labor, time and cost, and is conducive to commercial seedling raising operations. However, during the greenhouse seedling raising process, due to the sharp drop in temperature at night, the water vapor in the greenhouse will condense on the top wall of the greenhouse. The top wall of the greenhouse generally used is an inverted V-shape, so that the water droplets condensed on the top wall slide down along the inclined top wall. However, the top area of the seedling raising greenhouse is generally large, and the path for the water droplets to slide to the two side walls of the greenhouse is far. Even if the roof is made of drip-free film, a large number of water droplets will drip while sliding along the roof because their own gravity is greater than the adhesion of the roof. If these water droplets happen to drip into the seedling raising pool, it will cause the following adverse effects on the tobacco seedlings:
[0003] On the one hand, the dripping water droplets may splash the sown seeds, affecting the emergence of seedlings. At the same time, the water droplets will splash the substrate and cover the germinating seedlings, hindering the normal growth of the seedlings. On the other hand, the location where the water droplets drip will have the problem of excessive humidity, leading to serious growth of green algae, making the entire seedbed appear as dot-shaped green algae patches, affecting the normal growth of tobacco seedlings. If prevention and control are not timely, it will also cause devastating losses to seedling operations. Therefore, it is very necessary to carry out drip prevention treatment on the greenhouse. Utility Model Content
[0004] The utility model solves the problems that water droplets will condense on the top wall of the greenhouse during greenhouse seedling cultivation, and the falling water droplets will cause the tobacco seedlings to splash out and affect the emergence of the seedlings; and the dripping water droplets will cause the growth of green algae in the seedbed. A drip-proof flue-cured tobacco seedling greenhouse is provided to solve the technical problem. Two parallel greenhouses are arranged in the greenhouse, and a connecting seat is provided on the top wall of the greenhouse. Two drainage plates are rotatably connected to the connecting seat, and the two drainage plates can be rotated to open and close. When the drainage plate is rotated to a first state, the free end of the drainage plate is located above the gap between the seedbed and the inner wall of the greenhouse. When water droplets drip from the top wall of the greenhouse, they directly fall on the top surface of the drainage plate, flow along the top surface of the drainage plate to the free end of the drainage plate and then slide down, and will not drip into the seedbed, thereby ensuring the normal growth of the tobacco seedlings and reducing the occurrence of the problem of green algae growth.
[0005] In order to solve the above technical problems, the technical solution of the utility model is as follows:
[0006] A drip-proof flue-cured tobacco seedling shed comprises a shed with two parallel seedling beds inside, a gap is provided between the two seedling beds along the width direction of the shed, and a gap is also provided between the seedling beds and the inner wall of the shed, a connecting seat is fixedly provided on the top wall of the shed, the connecting seat is located above the gap between the two seedling beds, both sides of the connecting seat are rotatably connected with drainage plates for receiving water droplets dripping from the top wall of the shed and guiding the water droplets to flow toward the side walls of the seedling shed, the rotation axis of the drainage plates is parallel to the length direction of the shed, one end of the drainage plate rotatably matched with the connecting seat is the connecting end, and the other end of the drainage plate is the free end. The connection end of the flow plate is always higher than the free end. The two side edges of the drainage plate arranged in parallel along the length direction of the greenhouse are also provided with upwardly protruding water baffles, and the water baffles are arranged along the full length of the side edges. The connecting seat is also provided with a driving assembly for driving the two drainage plates to rotate so that the drainage plates can switch between a first state and a second state. When the drainage plate is in the first state, the free end of the drainage plate is located above the gap between the seedbed and the inner side wall of the greenhouse, and the two seedbeds are respectively located within the projection range of the two drainage plates on the ground; when the drainage plate is in the second state, the free ends of the drainage plates are both located above the gap between the two seedbeds.
[0007] Preferably, the driving assembly includes a sliding structure that can slide in a controlled manner relative to the connecting seat in a vertical direction, and an adjustment section is hinged between the sliding structure and the two guide plates, and the hinge axes at both ends of the adjustment section are parallel to the length direction of the seedling shed.
[0008] Preferably, the driving assembly also includes at least two vertical guide rods fixedly connected to the connecting seat, a positioning plate fixedly connected to the bottom end of the guide rod, and a screw rod threadedly engaged with the positioning plate. The sliding structure is provided with a plurality of through holes for each guide rod to pass through respectively, and slidingly engages with each guide rod through the through holes. The positioning plate rotates forward or backward relative to the positioning plate in the vertical direction, and the top end of the screw rod rotates with the sliding structure.
[0009] Preferably, the bottom end of the screw rod protrudes from the bottom surface of the positioning plate and is connected to a handle.
[0010] Preferably, a drainage groove is provided on the top surface of the drainage plate, and a drainage tube connected to the bottom of the drainage groove is connected to the bottom of the drainage groove. The drainage groove is arranged near the free end of the drainage plate, and the length direction of the drainage groove is parallel to the rotation axis of the drainage plate. The drainage tube is detachably connected to the drainage plate. When the drainage plate is in the first state, the drainage tube connected to the drainage plate is arranged in a vertical direction, and the bottom end of the drainage tube is located above the gap between the seedbed and the side wall of the greenhouse.
[0011] Preferably, a threaded hole communicating with the bottom of the drainage groove is formed on the bottom surface of the drainage plate, and an external threaded tube is provided at one end of the drainage tube connected to the drainage plate, and the thread of the external threaded tube is adapted to the threaded hole.
[0012] Preferably, the bottom of the drainage trough is inclined, and the drainage pipe is connected to the lowest point of the bottom of the drainage trough.
[0013] Preferably, a water collecting box with an open top is placed in the gap between the seedbed and the side wall of the greenhouse. When the drainage plate is in the first state and the drainage pipe is connected below the drainage plate, the bottom end of the drainage pipe is located above the open top of the water collecting box.
[0014] Preferably, the guide plate is a transparent plate.
[0015] Preferably, the length direction of the greenhouse is parallel to the local latitude.
[0016] Beneficial technical effects of the technical solution of the utility model:
[0017] (i) Two seedling beds are arranged side by side in the greenhouse along the width direction of the greenhouse, and there is a gap between the two seedling beds, and there is also a gap between the seedling beds and the side walls of the greenhouse. A connecting seat is fixedly installed on the top wall of the greenhouse, and a drainage plate is rotatably connected to both sides of the connecting seat. The two drainage plates are driven by a driving assembly to switch between a first state and a second state. When the drainage plates are in the first state, the two drainage plates are respectively located above the two seedling beds, and the drainage plates can be used to receive water drops falling from the top wall of the greenhouse to prevent the water drops from falling into the seedling beds. One end of the drainage plate connected to the connecting seat is higher than the other end. Water droplets falling on the top surface of the drainage plate flow along the inclined drainage plate to the lower end of the drainage plate, and the lower end of the drainage plate is located above the gap between the seedbed and the inner wall of the greenhouse. Water droplets sliding down the drainage plate drip into the gap between the seedbed and the inner wall of the greenhouse, which can prevent water droplets from dripping into the seedbed, reduce the interference of condensed water droplets in the seedling shed on the growth of seeds and seedlings, and at the same time reduce the problem of green algae breeding in the seedbed, ensuring the smooth progress of seedling cultivation.
[0018] When the drainage plate rotates to the second state, the lower end of the drainage plate is located above the gap between the two seedbeds, and the projection of the drainage plate on the ground is located above the gap between the two seedbeds, which can prevent the drainage plate from blocking sunlight and ensure that the seeds and seedlings in the seedbeds can grow normally.
[0019] (ii) A drainage groove is provided on the top surface of the drainage plate near the free end, and a detachable drainage pipe is installed on the bottom surface of the drainage plate. The drainage pipe is connected to the bottom of the drainage groove. The drainage groove cooperates with the drainage pipe to guide the water droplets on the drainage plate to flow down from the drainage pipe. The water droplets slide to the ground through the drainage pipe, avoiding the problem of water droplets falling directly from the edge of the drainage plate. In addition, the water flowing out from the bottom end of the drainage pipe is not easy to splash around when falling to the ground.
[0020] (3) The top of the water collecting box is open, and the bottom end of the drainage tube is located above the top opening of the water collecting box. The water collecting box is used to collect condensed water droplets in the nursery shed to prevent the water droplets from seeping into the ground in the nursery shed, thereby reducing the problem of green algae growth. BRIEF DESCRIPTION OF THE DRAWINGS
[0021] Figure 1 It shows a schematic structural diagram of a drip-proof flue-cured tobacco seedling raising shed in an embodiment of the utility model;
[0022] Figure 2 A schematic diagram showing the positions of the drainage plate and the drainage tube in the first state in an embodiment of the utility model;
[0023] Figure 3 Shows Figure 2 Enlarged view of point A in the middle.
[0024] Markings in the accompanying drawings:
[0025] 1-greenhouse; 2-seedling bed; 3-water collection box; 4-connecting seat; 41-guide rod; 42-positioning plate; 43-sliding structure; 44-adjusting section; 45-screw; 5-drainage plate; 51-drainage trough; 6-drainage pipe; 61-external threaded pipe. DETAILED DESCRIPTION
[0026] In order to make the purpose, technical scheme and advantages of the utility model clearer, the following is a further detailed description of a drip-proof flue-cured tobacco seedling shed proposed by the utility model in combination with the accompanying drawings and specific implementation methods. According to the following description, the advantages and features of the utility model will be clearer. It should be noted that the accompanying drawings adopt a very simplified form and use non-precise proportions, which are only used to conveniently and clearly assist in explaining the purpose of the implementation method of the utility model. In order to make the purpose, features and advantages of the utility model more obvious and easy to understand, please refer to the accompanying drawings. It should be noted that the structure, proportion, size, etc. illustrated by the accompanying drawings of this specification are only used to match the content disclosed in the specification, so that people familiar with this technology can understand and read, and are not used to limit the limiting conditions for the implementation of the utility model, so it has no technical substantive significance. Any modification of the structure, change of the proportional relationship or adjustment of the size, without affecting the effect that the utility model can produce and the purpose that can be achieved, should still fall within the scope of the technical content disclosed by the utility model.
[0027] The following will be combined with the attached Figures 1 to 3 The technical scheme of a drip-proof flue-cured tobacco seedling raising shed of the utility model is described in detail with specific embodiments.
[0028] Example
[0029] like Figures 1 to 3As shown, a drip-proof flue-cured tobacco seedling shed of the present embodiment includes a shed 1, in which two parallel seedling beds 2 are arranged, and the two seedling beds 2 are arranged in parallel along the width direction of the shed 1. Along the width direction of the shed 1, there is a gap between the two seedling beds 2, and there is also a gap between the seedling beds 2 and the inner wall of the shed 1. A connecting seat 4 is fixedly installed on the top wall of the shed 1. The connecting seat 4 is a long strip-shaped plate extending along the length direction of the shed 1, and the connecting seat 4 is located above the gap between the two seedling beds 2. The connecting seat 4 is rotatably connected to both sides of the connecting seat 4 along the width direction of the shed 1 with drainage plates 5 for receiving dripping water droplets and guiding the water droplets to flow toward the side walls of the seedling shed. The two drainage plates 5 are symmetrically arranged on both sides of the connecting seat 4, and the rotation axis of each drainage plate 5 is parallel to the length direction of the shed 1. One end of the drain plate 5 connected to the connection seat 4 is defined as the connection end, and the other end is defined as the free end. The connection end of the drain plate 5 is always higher than the free end. The two side edges of the drain plate 5 arranged in parallel along the length direction of the greenhouse 1 are also formed with water baffles protruding upward from the top surface of the drain plate 5, and the water baffles are arranged along the edge of the drain plate 5. The connection seat 4 is also equipped with a driving assembly that drives the two drain plates 5 to rotate synchronously in opposite directions to drive the drain plates 5 to switch between the first state and the second state. The above-mentioned first state and second state specifically refer to: when the drain plate 5 is in the first state, the free end of the drain plate 5 is located above the gap between the seedbed 2 and the side wall of the greenhouse 1, and at this time, the two seedbeds 2 in the greenhouse 1 are respectively located within the projection range of the two drain plates 5 on the ground; when the drain plate 5 is in the second state, the two drain plates 5 are close to each other, and the free end of each drain plate 5 and the projection of the drain plate 5 on the ground are both located above the gap between the two seedbeds 2.
[0030] When the drain plate 5 is in the first state, the two drain plates 5 are respectively covered above the two seedling beds 2, and because the connection end of the drain plate 5 is higher than the free end, when the water drops on the top wall of the greenhouse 1 drip, the water drops will fall on the top surface of the drain plate 5 and cannot fall into the seedling bed 2. The inclined drain plate 5 can guide the water drops to slide to the free end of the drain plate 5, and drip from the free end of the drain plate 5 into the gap between the seedling bed 2 and the inner wall of the greenhouse 1. By preventing the water drops from dripping into the seedling bed 2, the interference with the growth of seeds and seedlings is reduced, the problem of green algae breeding is reduced, and the seedling raising work is ensured to proceed smoothly. In addition, the drain plates 5 are arranged on both sides of the edge parallel to each other along the length direction of the greenhouse 1, which can prevent the water drops from sliding off the edge where the drain plates 5 are located.
[0031] When drip prevention is not needed, the drainage plate 5 can be controlled to rotate to the second state, and the free end of the drainage plate 5 is located above the gap between the two seedbeds 2, and the projection of the drainage plate 5 on the ground is also located in the gap between the two seedbeds 2, so as to prevent the drainage plate 5 from blocking the sunlight shining on the seedbed 2 and ensure that the seeds and seedlings in the seedbed 2 can grow normally.
[0032] It should also be noted that since the angle of sunlight changes when the sun rises in the morning and sets in the afternoon, in order to avoid the drainage plate 5 blocking the sunlight from shining on the seedling bed 2, when building the greenhouse 1, the local latitude in the length direction of the greenhouse 1 can be kept parallel, that is, the rotation axis of the drainage plate 5 is also parallel to the local latitude. When the drainage plate 5 is in the second state, the angle of sunlight and the angle between the drainage plate 5 are kept to the minimum, reducing the area of the shadow area caused by the drainage plate 5, thereby reducing the problem of blocking the light of the seedling bed 2.
[0033] In addition, the guide plate 5 may also be configured as a transparent plate body, for example, a transparent plate such as an acrylic plate, a transparent PC plate, etc. may be used as the guide plate 5, so that light directly passes through the guide plate 5, and there will be no problem of shading.
[0034] Specifically, the driving assembly in this embodiment includes a sliding structure 43 located below the connecting seat 4 and controlled to slide in the vertical direction. An adjustment section 44 is connected between the two sides of the sliding structure 43 and the two guide plates 5, respectively. The two adjustment sections 44 are symmetrically arranged on both sides of the connecting seat 4, and the hinge axes at both ends of the adjustment sections 44 are parallel to the length direction of the seedling shed. Two guide rods 41 are fixedly connected to the bottom surface of the connecting seat 4. The two guide rods 41 are respectively arranged near the two ends of the connecting seat 4. A positioning plate 42 is fixedly connected to the bottom ends of the two guide rods 41. A sliding structure 43 is also slidably arranged between the two guide rods 41. The sliding structure 43 is a plate body with two through holes. The two guide rods 41 pass through the above-mentioned two through holes respectively. The sliding structure 43 slides with the guide rods 41 through the two through holes. A vertical screw rod 45 is provided through the positioning plate 42 in the vertical direction. The screw rod 45 and the positioning plate 42 are threadedly matched, and the top of the screw rod 45 is rotationally matched with the sliding structure 43. The rotation axis of the screw rod 45 and the axis of the screw rod 45 are both in a vertical state. By controlling the screw rod 45 to rotate forward or backward in the vertical direction, the sliding structure 43 can be driven to slide along the length direction of the guide rod 41, that is, the vertical direction. While the sliding structure 43 slides in the vertical direction, it will also push and pull the guide plate 5 to rotate through the adjustment section 44, thereby controlling the guide plate 5 to switch between the first state and the second state.
[0035] In this embodiment, the bottom end of the screw 45 is lower than the positioning plate 42 and is connected with a handle, so that the staff can easily control the rotation of the screw 45 from the gap between the two seedling beds 2. The adjustment section 44 in this embodiment is a plate body, and the two sides of the adjustment section 44 are respectively hinged with the sliding structure 43 and the drain plate 5, and a row of parallel hinges or hinges are installed at the hinged position of the adjustment section 44, the sliding structure 43 and the drain plate 5, and the drain plate 5 can be stably supported by the adjustment section 44. In addition, it should be noted that the two hinge axes between the adjustment section 44 and the sliding structure 43 and the drain plate 5 are not always coplanar with the axis of rotation of the drain plate 5 relative to the connecting seat 4, so as to avoid the problem of jamming when the drain plate 5 is pushed by the adjustment section 44.
[0036] Furthermore, a water collecting box 3 with an open top is installed in the gap between the seedbed 2 and the side wall of the greenhouse 1, and the upper surface of the drainage plate 5 in the first state is used as the top surface of the drainage plate 5. The top surface of the drainage plate 5 is provided with a drainage groove 51, which is arranged near the free end, and the length direction of the drainage groove 51 is parallel to the rotation axis of the drainage plate 5. The bottom surface of the drainage plate 5 is detachably connected with a drainage pipe 6, and the drainage pipe 6 is connected to the bottom of the drainage groove 51. When the drainage plate 5 is in the first state, the drainage pipe 6 is in a vertical state, and the bottom end opening of the drainage pipe 6 is located above the top opening of the water collecting box 3. The drainage pipe 6 is connected to the bottom of the drainage groove 51. When the water drops on the drainage plate 5 slide down, they are first concentrated in the drainage groove 51, and then slide from the drainage pipe 6 to the water collecting box 3. When the water drops slide through the drainage pipe 6, it is not easy to fall. Using the water collecting box 3 to collect the fallen water drops can reduce the problem of the water drops falling to the ground and then splashing into the seedling bed 2. At the same time, collecting the water drops can prevent these water drops from seeping into the ground in the seedling shed, reducing the problem of green algae breeding.
[0037] Specifically, the bottom of the drainage groove 51 is inclined, and the drainage pipe 6 is connected to the lowest point of the bottom of the drainage groove 51, which can promote the accumulated water in the drainage groove 51 to flow to the drainage pipe 6, reduce the accumulated water remaining in the drainage groove 51, and prevent the accumulated water in the drainage groove 51 from dripping into the seedling bed 2 during the process of the drainage plate 5 rotating from the first state to the second state. It should be understood that the lowest point of the drainage groove 51 mentioned here refers to the lowest point of the drainage groove 51 when the drainage plate 5 is in the first state.
[0038] In this embodiment, a threaded hole (not shown in the figure) is provided on the bottom surface of the drainage plate 5 and is connected to the lowest point of the bottom of the drainage groove 51. An external threaded tube 61 is fixedly installed on the top of the drainage tube 6. The external threaded tube 61 is adapted to the threaded hole. When the drainage plate 5 is rotated to the first state to prevent dripping, the drainage tube 6 can be directly installed on the bottom surface of the drainage plate 5 in a screw-in manner. When the drainage plate 5 needs to be rotated to the second state, the drainage tube 6 can also be conveniently removed.
[0039] The technical features of the above-described embodiments may be arbitrarily combined. To make the description concise, not all possible combinations of the technical features in the above-described embodiments are described. However, as long as there is no contradiction in the combination of these technical features, they should be considered to be within the scope of this specification.
[0040] The above-mentioned embodiments only express several implementation methods of the utility model, and the description is relatively specific and detailed, but it cannot be understood as limiting the scope of the utility model patent. It should be pointed out that for ordinary technicians in this field, several modifications and improvements can be made without departing from the concept of the utility model, which all belong to the protection scope of the utility model. Therefore, the protection scope of the utility model patent shall be based on the attached claims.
Claims
1. A drip-proof flue-cured tobacco seedling raising shed, characterized in that: The invention comprises a greenhouse with two parallel seedling beds inside, wherein a gap is provided between the two seedling beds along the width direction of the greenhouse, and a gap is also provided between the seedling beds and the inner wall of the greenhouse, a connecting seat is fixedly provided on the top wall of the greenhouse, and the connecting seat is located above the gap between the two seedling beds, and both sides of the connecting seat are rotatably connected with drainage plates for receiving water droplets dripping from the top wall of the greenhouse and guiding the water droplets to flow toward the side wall of the seedling raising shed, and the rotation axis of the drainage plate is parallel to the length direction of the greenhouse, and one end of the drainage plate rotatably matched with the connecting seat is the connecting end, and the other end of the drainage plate is the free end, and the connection end of the drainage plate is always located at a high position. At the free end, the two side edges of the drainage plate arranged in parallel along the length direction of the greenhouse are also provided with upwardly protruding water baffles, and the water baffles are arranged along the full length of the side edges. The connecting seat is also provided with a driving assembly for driving the two drainage plates to rotate so that the drainage plates can switch between a first state and a second state. When the drainage plate is in the first state, the free end of the drainage plate is located above the gap between the seedbed and the inner side wall of the greenhouse, and the two seedbeds are respectively located within the projection range of the two drainage plates on the ground; when the drainage plate is in the second state, the free end of the drainage plate and the projection of the drainage plate on the ground are both located above the gap between the two seedbeds.
2. The drip-proof flue-cured tobacco seedling raising shed according to claim 1, characterized in that: The driving assembly includes a sliding structure that can slide in a controlled manner relative to the connecting seat in a vertical direction. An adjustment section is hinged between the sliding structure and the two guide plates. The hinge axes at both ends of the adjustment section are parallel to the length direction of the seedling shed.
3. The drip-proof flue-cured tobacco seedling raising shed according to claim 2, characterized in that: The driving assembly also includes at least two vertical guide rods fixedly connected to the connecting seat, a positioning plate fixedly connected to the bottom end of the guide rods, and a screw rod threadedly engaged with the positioning plate. The sliding structure is provided with a plurality of through holes for each guide rod to pass through respectively, and slidingly engages with each guide rod through the through holes. The positioning plate rotates forward or backward relative to the positioning plate in the vertical direction, and the top end of the screw rod rotates in engagement with the sliding structure.
4. The drip-proof flue-cured tobacco seedling raising shed according to claim 3, characterized in that: The bottom end of the screw rod protrudes from the bottom surface of the positioning plate and is connected with a handle.
5. The drip-proof flue-cured tobacco seedling raising shed according to claim 1, characterized in that: A drainage groove is provided on the top surface of the drainage plate, and a drainage tube connected to the bottom of the drainage groove is connected to the bottom of the drainage groove. The drainage groove is arranged near the free end of the drainage plate, and the length direction of the drainage groove is parallel to the rotation axis of the drainage plate. The drainage tube is detachably connected to the drainage plate. When the drainage plate is in the first state, the drainage tube connected to the drainage plate is arranged in a vertical direction, and the bottom end of the drainage tube is located above the gap between the seedbed and the side wall of the greenhouse.
6. The drip-proof flue-cured tobacco seedling raising shed according to claim 5, characterized in that: The bottom surface of the drainage plate is provided with a threaded hole connected to the bottom of the drainage groove, and one end of the drainage tube connected to the drainage plate is provided with an external threaded tube, the thread of the external threaded tube is adapted to the threaded hole.
7. The drip-proof flue-cured tobacco seedling raising shed according to claim 5, characterized in that: The bottom of the drainage trough is inclined, and the drainage pipe is connected to the lowest point of the bottom of the drainage trough.
8. The drip-proof flue-cured tobacco seedling raising shed according to claim 5, characterized in that: A water collecting box with an open top is placed in the gap between the seedbed and the side wall of the greenhouse. When the drainage plate is in the first state and the drainage pipe is connected below the drainage plate, the bottom end of the drainage pipe is located above the open top of the water collecting box.
9. The drip-proof flue-cured tobacco seedling raising shed according to claim 1, characterized in that: The guide plate is a transparent plate.
10. The drip-proof flue-cured tobacco seedling raising shed according to claim 1, characterized in that: The length direction of the greenhouse is parallel to the local latitude.