Seedling exercising device for flue-cured tobacco floating seedling raising

Abstract

The seedling hardening device for flue-cured tobacco floating seedling raising comprises a nutrient solution pool and a seedling raising tray bracket located in the nutrient solution pool, a lifting control beam is arranged on the lower portion of the seedling raising tray bracket in the length direction of the seedling raising tray bracket, and a plurality of sets of lifting control grooves are formed in the lifting control beam in the length direction of the lifting control beam. Each lifting control groove comprises a deep groove and a shallow groove, openings of the deep grooves and the shallow grooves face downwards, the deep grooves and the shallow grooves are close to each other in the length direction of the lifting control beam, the deep grooves and the shallow grooves are connected in an arc mode, and each roller assembly comprises a rotating shaft and a roller which is arranged on the rotating shaft in a sleeving mode and can roll on the inner bottom face of the nutrient solution pool. Rotation shafts of the multiple roller assemblies are connected through traction pieces, and rollers of the multiple roller assemblies are located between the deep grooves or the shallow grooves of the multiple sets of lifting control grooves and the bottom of the nursery pond. The device is small in duty ratio, short in roller stroke and small in consumed force.

Description

TECHNICAL FIELD

[0001] The utility model relates to the field of flue-cured tobacco seedling technology, and particularly relates to a flue-cured tobacco seedling floating seedling device. BACKGROUND

[0002] The flue-cured tobacco seedling floating method is to use a nutrient solution pool, let the seedling tray float in the nutrient solution pool, and then transplant the tobacco seedlings into the land after seeding and seedling on the seedling tray. The floating seedling method is widely used because of its convenience, low labor intensity and good seedling effect. However, the floating seedling method has a defect that the roots of the tobacco seedlings are soaked in the nutrient solution for a long time, and it is difficult for the tobacco seedlings to adapt to the relatively dry environment after being transplanted. In order to solve the above-mentioned defect, the tobacco seedlings grown by the floating seedling method generally need to be hardened before transplanting to improve the transplanting adaptability of the tobacco seedlings. The existing hardening methods are to repeatedly separate the roots of the tobacco seedlings from the nutrient solution, that is, to make the tobacco seedlings adapt to the environment of being separated from the nutrient solution, so as to increase the adaptability of the roots of the tobacco seedlings to the soil after being transplanted. After the tobacco seedlings are hardened, the resistance of the seedlings to the poor environment in early spring can be improved, and the cold resistance and drought resistance of the seedlings can be enhanced. For example, when the temperature is low in early spring, the seedlings with the enhanced resistance are planted and can quickly recover and sprout early, so that the survival rate of the seedlings can be improved. The existing hardening methods generally have two specific implementation modes. One is to repeatedly pour and irrigate the nutrient solution pool, and the tobacco seedlings are placed on the support to be separated from the nutrient solution for hardening after the water is poured. The other is to place the seedling tray support in the nutrient solution pool, and the lifting mechanism repeatedly lifts and lowers the seedling tray support with the seedling tray, and the tobacco seedlings are separated from the nutrient solution for hardening after being lifted. The first mode needs to set a water tank and a water pump, and the second mode needs to set a lifting mechanism. Both modes have the technical problems of large space occupation ratio and high energy consumption. CONTENT OF THE UTILITY MODEL

[0003] Therefore, the utility model aims to provide a flue-cured tobacco seedling floating seedling hardening device to solve the technical problems of large space occupation ratio and high energy consumption in the existing hardening methods.

[0004] The utility model aims to realize the following technical solutions:

[0005] The utility model provides a kind of hardening-off device for flue-cured tobacco floating seedling, it includes nutrient solution pool and be located in the seedling tray bracket of nutrient solution pool, the seedling tray bracket is equipped with lifting control beam along its length direction under the seedling tray bracket, lifting control beam is equipped with multiple groups lifting control groove along its length direction on lifting control beam, each group lifting control groove includes deep groove and shallow groove, deep groove and shallow groove are arranged similarly along the length direction of lifting control beam, deep groove and shallow groove are connected with arc, it further includes multiple roller assembly, the roller assembly includes rotating shaft and the roller that can be rolled on the bottom surface of nutrient solution pool by being set on rotating shaft, the rotating shaft of multiple roller assembly is connected by pulling member, and the roller of multiple roller assembly is located between the deep groove or shallow groove of multiple groups lifting control groove and the bottom of seedling pool respectively.

[0006] Further, the pulling member is a pulling rope.

[0007] Further, the inner wall of the both ends of the nutrient solution pool is respectively provided with a fixed pulley, and the both ends of the pulling rope are respectively wound on the top surface of the both ends of the nutrient solution pool after passing through the two fixed pulleys.

[0008] Further, the top surface of the both ends of the nutrient solution pool is respectively provided with a winding reel, and the both ends of the pulling rope are respectively wound on the two winding reels.

[0009] Further, the lifting control beam is two, and the two lifting control beams are arranged at intervals along the width direction of the seedling tray bracket.

[0010] The beneficial effects of the utility model are as follows:

[0011] When the rollers of the multiple roller assemblies are located in the shallow grooves of the multiple groups of lifting control grooves, the lifting control beam lifts the seedling tray bracket with the seedling tray, and the tobacco seedlings are separated from the nutrient solution.

[0012] The fixed pulley and the winding reel are arranged to pull the pulling rope, so that the operation is more convenient.

[0013] Other advantages, objects and features of the utility model will be described in the subsequent specification to some extent, and to some extent, it will be obvious to those skilled in the art based on the study of the following text or can be taught from the practice of the utility model. BRIEF DESCRIPTION OF DRAWINGS

[0014] In order to make the purpose, technical scheme and advantages of the utility model more clearly, the utility model will be described in further detail below in combination with the drawings, wherein:

[0015] Figure 1 It is the perspective view of the utility model (in order to make clear, two lifting control beams are painted gray).

[0016] Figure 2 It is the front view of the utility model (in order to make clear, two lifting control beams are painted gray).

[0017] Figure 3 It is the connecting perspective view of the seedling tray bracket, two lifting control beams, roller assembly and pull rope in the utility model.

[0018] Figure 4 It is the connecting perspective view of the seedling tray bracket, two lifting control beams, roller assembly and pull rope in the utility model.

[0019] In the drawing: nutrient solution pool 1, seedling tray bracket 2, lifting control beam 3, deep groove 4, shallow groove 5, rotating shaft 6, roller 7, pull rope 8, fixed pulley 9. DETAILED DESCRIPTION

[0020] The preferred embodiment of the utility model will be described in detail below with reference to the drawings. It should be understood that the preferred embodiment is only for illustrating the utility model, and is not for limiting the protection scope of the utility model.

[0021] Example One

[0022] As Figure 1As shown, a kind of tobacco seedling floating seedling is used to the seedling device, it includes rectangular nutrient solution pool 1, rectangular nutrient solution pool 1 is set along left and right directions, and planar seedling tray bracket 2 is equipped in nutrient solution pool 1, and the four walls of seedling tray bracket 2 are respectively close to nutrient solution pool 1.The lower part of seedling tray bracket 2 is provided with two lifting control beams 3 along left and right directions, and the two lifting control beams 3 are mirror image with the middle line of seedling tray bracket 2 in front and back direction, and the two lifting control beams 3 are provided with multiple groups of lifting control grooves along left and right directions, each group of lifting control grooves includes deep groove 4 and shallow groove 5, which are close to each other along left and right directions, and the deep groove 4 and shallow groove 5 are connected by arc.The seedling device also includes multiple roller assemblies, each roller assembly includes a rotating shaft 6 and a roller 7 rotatably mounted on both ends of the rotating shaft 6, the roller 7 can roll on the bottom surface of the nutrient solution pool, the rotating shaft 6 is arranged in the front and back direction, and the rotating shafts 6 of the multiple roller assemblies are connected by a pulling rope 8, the rollers 7 of the multiple roller assemblies are located in the deep groove 4 or the shallow groove 5 of the multiple groups of lifting control grooves 4, that is, the two rollers 7 of each roller assembly are located in the opposite lifting control grooves on the two lifting control beams 3.The seedling tray bracket 2, the two lifting control beams 3, the roller assemblies and the pulling rope 8 are all made of plastic that is resistant to aging and deformation.When the rollers 7 of the multiple roller assemblies are located in the shallow grooves 5 of the multiple groups of lifting control grooves, the lifting control beams 3 lift the seedling tray with the seedling tray bracket 2, and the tobacco seedlings are separated from the nutrient solution.When the rollers 7 of the multiple roller assemblies are located in the deep grooves 4 of the multiple groups of lifting control grooves by pulling the pulling rope 8, the lifting control beams 3 lower the seedling tray with the seedling tray bracket 2, and the tobacco seedlings are separated from the nutrient solution, and the seedling tray is lifted and lowered to realize the seedling of tobacco seedling floating seedling.

[0023] Example two

[0024] The difference from example one is that the inner walls of both ends of the nutrient solution pool 1 are respectively provided with a fixed pulley 9, and the top surfaces of both ends of the nutrient solution pool 1 are respectively provided with an electric type winding reel, and the motor of the electric type winding reel is a pulse motor, and the pulling ropes of both ends are wound on the two electric type winding reels after passing through the two fixed pulleys 9.

[0025] Of course, the number of lifting control beams 3 can be one or more, when it is one, its width in front and back direction is wider, and the corresponding rollers 7 of each roller assembly are also multiple, and the pulling member can be a pulling rod.

[0026] Finally, it is pointed out that the above examples are only used to illustrate the technical solutions of the present application, not to limit, although the present application has been described in detail with reference to the preferred embodiments, those skilled in the art should understand that the technical solutions of the present application can be modified or replaced equivalently without departing from the purpose and scope of the present application, which should be covered in the scope of claims of the present application.

Claims

1. A hardening-off device for float culture of flue-cured tobacco seedlings, comprising a nutrient solution pool (1) and a seedling tray carrier (2) located in the nutrient solution pool (1), characterized in that: The seedling tray carrier (2) is provided with a lifting control beam (3) along its length direction, the lifting control beam (3) is provided with a plurality of groups of lifting control grooves along its length direction, each group of lifting control grooves comprises a deep groove (4) and a shallow groove (5) with openings facing downward, the deep groove (4) and the shallow groove (5) are arranged close to each other along the length direction of the lifting control beam (3), and the deep groove (4) and the shallow groove (5) are connected by an arc, the lifting control beam (3) further comprises a plurality of roller assemblies, each roller assembly comprises a rotating shaft (6) and a roller (7) sleeved on the rotating shaft (6) and capable of rolling on the bottom surface of the nutrient solution pool, the rotating shafts (6) of the plurality of roller assemblies are connected by a pulling member, and the rollers (7) of the plurality of roller assemblies are respectively located in the deep grooves (4) or the shallow grooves (5) of the plurality of groups of lifting control grooves.

2. The seedling device for float seeding of flue-cured tobacco according to claim 1, characterized in that: The pulling member is a pulling rope (8).

3. The seedling device for float seeding of flue-cured tobacco according to claim 2, characterized in that: The inner walls of the two ends of the nutrient solution pool (1) are respectively provided with a fixed pulley (9), and the two ends of the pulling rope (8) are respectively wound around the two fixed pulleys (9) and then placed on the top surfaces of the two ends of the nutrient solution pool (1).

4. The seedling device for float seeding of flue-cured tobacco according to claim 3, characterized in that: The top surfaces of the two ends of the nutrient solution pool (1) are respectively provided with a winding disc, and the two ends of the pulling rope (8) are respectively wound on the two winding discs.

5. The seedling device for flue-cured tobacco floating seedling according to any one of claims 1-4, characterized in that: The lifting control beam (3) is in a plurality of roots, the plurality of lifting control beams (3) are arranged at intervals along the width direction of the seedling tray carrier (2), each roller assembly comprises a plurality of rollers (7), and the plurality of rollers (7) of each roller assembly are respectively located in the opposite lifting control grooves of the plurality of lifting control beams (3).

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