Seedling sealing and protecting appliance for tobacco

Abstract

The utility model belongs to the technical field of tobacco planting, and particularly relates to a tobacco seedling sealing and protecting appliance which comprises a base, two sliding plates and a plurality of fixing blocks and further comprises two sun-shading plates and two sliding grooves, the two sun-shading plates are both rotationally installed in the base, the two sliding grooves are both formed in the base, and the fixing blocks are arranged in the base. The two sliding plates are slidably mounted between the two sliding grooves, and the multiple fixing blocks are fixedly mounted on the two sliding plates correspondingly. The two limiting grooves are formed in the two sliding plates correspondingly, a first fixing frame and a second fixing frame are installed in the two limiting grooves in an inserted mode correspondingly, a fixing frame is fixedly installed on the top of the first fixing frame, steel wire meshes are fixedly installed on the top and the peripheral side of the fixing frame correspondingly, and a transparent cover is fixedly installed on the top of the second fixing frame; by means of the device, the seedlings can be shaded, the seedlings cannot die due to strong light irradiation, meanwhile, birds and small animals can be prevented from gnawing or treading the seedlings, and heat preservation can be conducted on the seedlings.

Description

TECHNICAL FIELD

[0001] The utility model belongs to tobacco planting technical field especially, relate to a kind of tobacco seedling sealing protection appliance. BACKGROUND

[0002] For example, the Chinese patent with the announcement number CN219373232U discloses a seedling protection and cultivation device, which comprises a supporting block and a supporting plate, the inner side surface of the supporting block is fixedly connected with the supporting plate, the inner side surface of the supporting block is slidably connected with a protection mechanism, the inner side surface of the supporting block is slidably connected with a second panel, and the top end of the supporting plate is provided with a circular groove. The utility model adopts the above structure, and the soil and seedlings are placed in the circular groove for cultivation. Since the circular groove is provided with four, four seedlings can be cultivated simultaneously. The arc-shaped plate can seal the soil to avoid soil collapse. When the seedlings grow well and need to be taken out, the first panel and the second panel are separated by holding the handle. The soil will form soil blocks under long-term shaping irrigation. The user can take out the soil blocks and seedlings together for transplanting, so as to conveniently take out four seedlings at the same time, reduce time consumption and improve work efficiency.

[0003] The above-mentioned patent has the following problems:

[0004] The above-mentioned device has some shortcomings when in use, such as: birds and small animals may gnaw or trample on seedlings, which may cause damage or even death of the seedlings, affecting the planting effect. At the same time, the above-mentioned device lacks light regulation, and strong light may directly burn the tender leaves, causing tissue damage or even death. In view of this, we propose a tobacco seedling sealing protection appliance. UTILITY MODEL CONTENTS

[0005] The utility model aims to provide a tobacco seedling sealing protection appliance to solve the problems in the above background.

[0006] Therefore, the utility model provides a tobacco seedling sealing protection appliance, which comprises a base, two sliding plates and a plurality of fixing blocks, and further comprises:

[0007] Two sunshields are rotatably installed in the base, two sliding grooves are formed in the base, two sliding plates are slidably installed between the two sliding grooves, and a plurality of fixing blocks are fixedly installed on the two sliding plates.

[0008] Two limiting grooves, two limiting grooves are respectively arranged in two sliding plates, first fixed frame and second fixed frame are inserted and installed in two limiting grooves, the top of first fixed frame is fixedly installed with fixed frame, the top and the periphery of fixed frame are fixedly installed with steel wire mesh, the top of second fixed frame is fixedly installed with transparent cover;

[0009] Driving assembly, the driving assembly is located in the base, and is used for driving two sliding plates to slide and two sunshields to rotate;

[0010] Two groups of fixed assemblies, two groups of fixed assemblies are respectively located in two sliding plates, and are used for fixing the positions of first fixed frame and second fixed frame.

[0011] In the technical scheme, when the seedlings need to be shaded, the driving assembly is arranged to drive two sunshields to rotate towards each other, and when the two sunshields contact, the seedlings can be shaded, so that the seedlings will not die due to strong light irradiation;

[0012] When the seedlings need to be taken out, the driving assembly is arranged to drive two sliding plates to slide and move away from each other, and then the staff can take out the seedlings in the fixed blocks;

[0013] The first fixed frame is inserted into the two limiting grooves, and the fixed assembly is arranged to fix the position of the first fixed frame. The steel wire mesh on the fixed frame does not affect the irradiation of sunlight, and can prevent birds and small animals from nibbling or trampling the seedlings, so that the growth of the seedlings will not be affected by these factors. The second fixed frame is fixedly installed in the two limiting grooves, and the transparent cover can heat the seedlings and the seedlings can ventilate.

[0014] In the above technical scheme, further, the driving assembly comprises:

[0015] Threaded rod, the threaded rod is rotatably installed in one of the sliding grooves, one end of the threaded rod penetrates two sliding plates and one of the sliding grooves and extends to the outside, two sections of threads with opposite rotation directions are arranged on the threaded rod, and the threaded rod is threadedly connected with the two sliding plates;

[0016] Power cavity, the power cavity is arranged in the base, the worm gear is rotatably installed in the power cavity, the top of the worm gear is meshed with the worm, one end of the worm penetrates the power cavity and extends to the outside, the two ends of the worm gear are fixedly installed with first bevel gears, the two first bevel gears are meshed with second bevel gears on the sides away from each other, the two second bevel gears are located on the sides of the two sunshields, and the two second bevel gears penetrate the power cavity and are fixedly connected with the two sunshields.

[0017] When the seedlings need to be shaded, the worm is rotated first, the worm drives the worm gear to rotate, the worm gear drives the two first bevel gears to rotate, the two first bevel gears drive the two second bevel gears to rotate in opposite directions respectively, and the two second bevel gears drive the two sunshades to rotate in opposite directions respectively, so that the seedlings can be shaded when the two sunshades contact, and the seedlings will not die due to strong light irradiation.

[0018] When the seedlings need to be taken out, the threaded rod is rotated, the two sliding plates slide away from each other under the action of the threads, and then the staff can take out the seedlings in the fixing blocks.

[0019] In the above technical solution, further, the fixing assembly comprises:

[0020] The first gear is rotatably installed in the limiting groove, the two sides of the first gear are rotatably installed with the racks, the bottoms of the two racks are fixedly installed with the limiting strips, one side of the two limiting strips extends into the first fixed frame and the second fixed frame, and one side of the two limiting strips is insertedly connected with the first fixed frame and the second fixed frame, one side of the two limiting strips away from each other is fixedly installed with a plurality of springs fixed in the inner wall of the limiting groove, one end of one of the limiting strips is fixedly installed with a fixed plate, and the upper end of the fixed plate extends to the outside through the limiting groove.

[0021] In the above technical solution, further, the first gear is rotatably installed in the limiting groove, the two sides of the first gear are rotatably installed with the racks, the bottoms of the two racks are fixedly installed with the limiting strips, one side of the two limiting strips extends into the first fixed frame and the second fixed frame, and one side of the two limiting strips is insertedly connected with the first fixed frame and the second fixed frame, one side of the two limiting strips away from each other is fixedly installed with a plurality of springs fixed in the inner wall of the limiting groove, one end of one of the limiting strips is fixedly installed with a fixed plate, and the upper end of the fixed plate extends to the outside through the limiting groove.

[0022] In the above technical solution, further, one of the fixed plates is fixedly installed with a fixed strip, one end of the fixed strip extends into the other fixed plate, and one end of the fixed strip is insertedly connected with the other fixed plate.

[0023] In the technical solution, the fixed strips are arranged, so that when a staff member pulls one of the fixed plates, the other fixed plate can be driven to slide.

[0024] In the technical solution, further, one end of the threaded rod is fixedly provided with a first operation disc, and one end of the worm is fixedly provided with a second operation disc.

[0025] In the technical solution, the first operation disc is arranged to facilitate the staff member to rotate the threaded rod, and the second operation disc is arranged to facilitate the staff member to rotate the worm.

[0026] In the technical solution, further, the first fixed frame is located at the inner side of the second fixed frame, and the first fixed frame is in close contact with the second fixed frame.

[0027] In the technical solution, the stability of the fixing of the first fixed frame and the second fixed frame is ensured.

[0028] In the technical solution, further, the worm, the two first bevel gears and the two second bevel gears are rotationally connected with the power cavity, and the two toothed racks, the two limiting strips and the fixed plate are slidingly connected with the limiting grooves.

[0029] In the technical solution, the worm, the two first bevel gears and the two second bevel gears can rotate in the power cavity, and the two toothed racks, the two limiting strips and the fixed plate can slide in the limiting grooves.

[0030] The beneficial effects of the utility model are as follows:

[0031] 1. The seedling shielding device for tobacco is used, when it is needed to shield the sun for the seedlings, the driving assembly is arranged, two sunshields can be driven to rotate towards each other, when the two sunshields contact, the seedlings can be shielded from the sun, so that the seedlings will not die because of strong light irradiation.

[0032] 2. The seedling shielding device for tobacco is used, the first fixed frame is inserted into the two limiting grooves through the fixing assembly, the position of the first fixed frame can be fixed through the fixing assembly, the steel wire mesh on the fixing frame does not affect the sunlight irradiation, and can prevent birds and small animals from gnawing or trampling the seedlings, so that the growth of the seedlings will not be affected by these factors, the second fixed frame is fixedly installed in the two limiting grooves through the above operation, the transparent cover can keep the seedlings warm, and the seedlings can ventilate. BRIEF DESCRIPTION OF DRAWINGS

[0033] Figure 1 is the overall structure schematic view of the utility model;

[0034] Figure 2 is one of the base sectional structure schematic views of the utility model.

[0035] Figure 3 is the second base section structure schematic view of the utility model;

[0036] Figure 4 is the Figure 3 structure schematic view of A place in the middle;

[0037] Figure 5 is the first local explosion structure schematic view of the utility model;

[0038] Figure 6 is the sliding plate section structure schematic view of the utility model;

[0039] Figure 7 is the limiting strip area structure schematic view of the utility model;

[0040] Figure 8 is the second local explosion structure schematic view of the utility model.

[0041] The mark in the figure is:

[0042] 1, base;2, sun visor;3, sliding groove;4, sliding plate;5, limiting groove;6, first fixed frame;7, second fixed frame;8, fixed frame;9, steel wire net;10, transparent cover;11, fixed block;12, threaded rod;13, power cavity;14, worm;15, worm gear;16, first bevel gear;17, second bevel gear;18, first gear;19, rack;20, limiting strip;21, spring;22, fixed plate;23, fixed strip;24, first operation disc;25, second operation disc. Specific implementation

[0043] The technical solutions in the embodiments of the present application will be clearly described below with reference to the drawings in the embodiments of the present application. Obviously, the described embodiments are only part of the embodiments of the present application, not all the embodiments. Based on the embodiments in the present application, all other embodiments obtained by those of ordinary skill in the art belong to the scope of protection of the present application.

[0044] In the description of the present application, it should be noted that the terms used herein are merely for the purpose of describing specific embodiments and are not intended to limit the exemplary embodiments according to the present application. For the purpose of description, the sizes of the respective portions shown in the drawings are not drawn in accordance with the actual proportional relationship. The techniques, methods, and devices known to those of ordinary skill in the relevant art can not be discussed in detail, but should be considered as part of the authorized description. In all examples shown and discussed herein, any specific value should be interpreted as merely exemplary and not as a limitation. Therefore, other examples of exemplary embodiments can have different values. It should be noted that similar reference numerals and letters represent similar items in the following drawings, and therefore, once an item is defined in one drawing, it need not be further discussed in subsequent drawings.

[0045] It should be noted that the terms "first", "second", and the like in the description and claims of the present application are used to distinguish similar objects, and are not intended to describe a particular order or sequence. It should be understood that the data used in this way can be exchanged under appropriate circumstances, so that the embodiments of the present application can be implemented in an order other than that illustrated or described herein, and the objects distinguished by "first", "second", etc. are generally a class, not limited to the number of objects, for example, the first object can be one or more. In addition, "and / or" in the specification and claims indicates at least one of the connected objects, and the character " / ", generally indicates that the associated objects before and after are in an "or" relationship.

[0046] It should be noted that in the description of the present application, the orientation or position relationship indicated by the orientation terms such as "front, rear, upper, lower, left, right", "horizontal, vertical, perpendicular, horizontal" and "top, bottom" is generally based on the orientation or position relationship shown in the drawings, only for the purpose of facilitating the description of the present application and simplifying the description, without the opposite indication, these orientation terms do not indicate and imply that the indicated device or element must have a specific orientation or be constructed and operated in a specific orientation, therefore, it cannot be understood as a limitation on the scope of protection of the present application; the orientation terms "inner, outer" refer to the inner and outer relative to the contour of each component.

[0047] It should be noted that in this application, the terms "comprising", "including", or any other variant thereof are intended to cover a non-exclusive inclusion, so that a process, method, article, or apparatus that includes a list of elements not only includes those elements, but also includes other elements not expressly listed or inherent to such process, method, article, or apparatus. Without more limitations, the element defined by the statement "comprising a" does not exclude the presence of additional identical elements in the process, method, article, or apparatus including the element. In addition, it should be pointed out that the scope of the methods and apparatus in the embodiments of the present application is not limited to performing functions in the order shown or discussed, but can also include performing functions in a substantially simultaneous manner or in reverse order according to the functions involved, for example, the described method can be performed in an order different from that described, and various steps can also be added, omitted, or combined. In addition, the features described with reference to certain examples can be combined in other examples.

[0048] Embodiment 1:

[0049] Please refer to Figure 1 - Figure 8 As shown in the drawings, the present embodiment provides a seedling shielding device for tobacco, which comprises a base 1, two sliding plates 4 and a plurality of fixing blocks 11, and further comprises:

[0050] two sunshields 2, both of which are rotatably installed in the base 1, two sliding grooves 3, both of which are formed in the base 1, two sliding plates 4, both of which are slidably installed between the two sliding grooves 3, and a plurality of fixing blocks 11, each of which is fixedly installed on the two sliding plates 4;

[0051] two limiting grooves 5, each of which is formed in the two sliding plates 4, and both of which are insertedly installed with a first fixed frame 6 and a second fixed frame 7, the top of the first fixed frame 6 is fixedly installed with a fixing frame 8, and the top and the peripheral side of the fixing frame 8 are both fixedly installed with a steel wire mesh 9, and the top of the second fixed frame 7 is fixedly installed with a transparent cover 10;

[0052] a driving assembly, which is located in the base 1 and is used to drive the two sliding plates 4 to slide and the two sunshields 2 to rotate;

[0053] two groups of fixing assemblies, each of which is located in the two sliding plates 4 and is used to fix the positions of the first fixed frame 6 and the second fixed frame 7.

[0054] When it is necessary to shield the sun for the seedlings, the driving assembly is arranged to drive the two sunshields 2 to rotate towards each other, and when the two sunshields 2 contact, the seedlings can be shaded, so that the seedlings will not die due to strong light irradiation;

[0055] When the seedlings need to be taken out, the two sliding plates 4 can be driven to slide and move away from each other by the driving assembly, and then the seedlings in the plurality of fixing blocks 11 can be taken out by the staff;

[0056] The first fixing frame 6 is inserted into the two limiting grooves 5, and the position of the first fixing frame 6 is fixed by the fixing assembly. The steel wire mesh 9 on the fixing frame 8 does not affect the sunlight irradiation and can prevent birds and small animals from gnawing or trampling the seedlings, so that the growth of the seedlings is not affected by these factors. The transparent cover 10 can heat the seedlings, and the seedlings can ventilate.

[0057] In this embodiment, the driving assembly comprises:

[0058] The threaded rod 12 is rotatably installed in one of the sliding grooves 3, one end of the threaded rod 12 penetrates the two sliding plates 4 and the one of the sliding grooves 3 and extends to the outside, and the threaded rod 12 is provided with two sections of threads with opposite rotation directions and is threadedly connected with the two sliding plates 4;

[0059] The power cavity 13 is formed in the base 1, the worm wheel 14 is rotatably installed in the power cavity 13, the worm wheel 14 is meshingly installed with the worm 15 at the top, one end of the worm 15 penetrates the power cavity 13 and extends to the outside, the two ends of the worm wheel 14 are fixedly installed with the first bevel gears 16, the two first bevel gears 16 are meshingly installed with the second bevel gears 17 on the sides away from each other, the two second bevel gears 17 are located on one side of the two sunshields 2, and the two second bevel gears 17 penetrate the power cavity 13 and are fixedly connected with the two sunshields 2, respectively;

[0060] When the seedlings need to be shaded, the worm 15 is first rotated, the worm 15 drives the worm wheel 14 meshingly connected therewith to rotate, the worm wheel 14 drives the two first bevel gears 16 to rotate, the two first bevel gears 16 drive the two second bevel gears 17 meshingly connected therewith to rotate towards each other, and the two second bevel gears 17 drive the two sunshields 2 to rotate towards each other, so that the seedlings can be shaded when the two sunshields 2 contact, and the seedlings will not die due to strong light irradiation;

[0061] When the seedlings need to be taken out, the threaded rod 12 is rotated, and the two sliding plates 4 slide and move away from each other under the action of the threads, and then the seedlings in the plurality of fixing blocks 11 can be taken out by the staff.

[0062] In this embodiment, the fixing assembly comprises:

[0063] The first gear 18 is rotatably installed in the limiting groove 5, and the two sides of the first gear 18 are rotatably installed with the two racks 19, the bottoms of the two racks 19 are fixedly installed with the two limiting strips 20, one side of the two limiting strips 20 extends into the first fixed frame 6 and the second fixed frame 7, and one side of the two limiting strips 20 is insertedly connected with the first fixed frame 6 and the second fixed frame 7, and one side of the two limiting strips 20 away from each other is fixedly installed with a plurality of springs 21 fixedly installed on the inner wall of the limiting groove 5, one end of one of the limiting strips 20 is fixedly installed with a fixed plate 22, and the upper end of the fixed plate 22 extends to the outside through the limiting groove 5.

[0064] First, pull the two fixed plates 22, and the two fixed plates 22 drive the two limiting strips 20 to slide, respectively, the two limiting strips 20 drive the two racks 19 to slide, respectively, the two racks 19 drive the two first gears 18 to rotate in the forward direction, respectively, the two first gears 18 drive the other two racks 19 to slide, respectively, the other two racks 19 drive the other two limiting strips 20 to slide, and the plurality of springs 21 are all squeezed and contracted, when the four limiting strips 20 are all slid to the appropriate positions, the first fixed frame 6 is inserted into the two limiting grooves 5, then the one of the fixed plates 22 is loosened, under the action of the rebound force of the plurality of springs 21, the four limiting strips 20 and the four racks 19 slide to the direction of the first fixed frame 6, the four racks 19 drive the two first gears 18 to rotate in the reverse direction, respectively, when the four limiting strips 20 are all inserted into the first fixed frame 6, the position of the first fixed frame 6 can be fixed, the steel wire mesh 9 on the fixed frame 8 does not affect the sunlight irradiation, and can prevent birds and small animals from gnawing or trampling the seedlings, so that the growth of the seedlings is not affected by these factors, after the second fixed frame 7 is fixedly installed in the two limiting grooves 5 through the above operation, the transparent cover 10 can heat the seedlings, and the seedlings can ventilate.

[0065] Embodiment 2

[0066] The tobacco seedling protection device provided in the embodiment further has the following technical features in addition to the technical solutions in the above embodiments.

[0067] In the embodiment, one of the fixed plates 22 is fixedly installed with a fixed strip 23, one end of the fixed strip 23 extends into the other fixed plate 22, and one end of the fixed strip 23 is insertedly connected with the other fixed plate 22.

[0068] The fixed strip 23 is arranged, so that when one of the fixed plates 22 is pulled, the other fixed plate 22 can be driven to slide.

[0069] Embodiment 3

[0070] The embodiment provides a seedling sealing and protecting device for tobacco planting.

[0071] In the embodiment, the first operating disc 24 is fixedly installed at one end of the threaded rod 12, and the second operating disc 25 is fixedly installed at one end of the worm 15.

[0072] The first operating disc 24 is arranged to facilitate the rotation of the threaded rod 12 by the staff, and the second operating disc 25 is arranged to facilitate the rotation of the worm 15 by the staff.

[0073] Embodiment 4

[0074] The embodiment provides a seedling sealing and protecting device for tobacco planting.

[0075] In the embodiment, the first fixed frame 6 is located at the inner side of the second fixed frame 7, and the first fixed frame 6 is in close contact with the second fixed frame 7.

[0076] The first fixed frame 6 is in close contact with the second fixed frame 7.

[0077] Embodiment 5

[0078] The embodiment provides a seedling sealing and protecting device for tobacco planting.

[0079] In the embodiment, the worm 15, the two first bevel gears 16 and the two second bevel gears 17 are rotationally connected with the power cavity 13, and the two toothed racks 19, the two limiting strips 20 and the fixed plate 22 are slidingly connected with the limiting groove 5.

[0080] The worm 15, the two first bevel gears 16 and the two second bevel gears 17 can rotate in the power cavity 13, and the two toothed racks 19, the two limiting strips 20 and the fixed plate 22 can slide in the limiting groove 5.

[0081] Working principle: when the seedlings need to be shaded, the second operating disc 25 is rotated first to drive the worm 15 to rotate, the worm 15 drives the worm wheel 14 meshed with the worm 15 to rotate, the worm wheel 14 drives the two first bevel gears 16 to rotate, the two first bevel gears 16 drive the two second bevel gears 17 meshed with the two first bevel gears 16 to rotate towards each other, and the two second bevel gears 17 drive the two sunshades 2 to rotate towards each other, when the two sunshades 2 contact, the seedlings can be shaded, so that the seedlings will not die due to strong light irradiation.

[0082] When the seedlings need to be taken out, the first operation disc 24 is rotated to rotate the threaded rod 12, under the action of the thread, the two sliding plates 4 slide and move away from each other, and then the staff can take out the seedlings in the fixing blocks 11;

[0083] First, pull one of the fixed plates 22, one of the fixed plates 22 drives the other fixed plate 22 to slide through the fixed strip 23, the two fixed plates 22 respectively drive the two limiting strips 20 to slide, the two limiting strips 20 respectively drive the two ratchets 19 to slide, the two ratchets 19 respectively drive the two first gears 18 meshed therewith to rotate forward, the two first gears 18 respectively drive the other two ratchets 19 meshed therewith to slide, the other two ratchets 19 respectively drive the other two limiting strips 20 to slide, and at the same time, the springs 21 are all extruded and contracted, when the four limiting strips 20 are all slid to the appropriate positions, insert the first fixed frame 6 into the two limiting grooves 5, then release one of the fixed plates 22, under the action of the rebound force of the springs 21, the four limiting strips 20 and the four ratchets 19 all slide to the direction of the first fixed frame 6, the four ratchets 19 respectively drive the two first gears 18 meshed therewith to rotate reversely, when the four limiting strips 20 are all inserted into the first fixed frame 6, the position of the first fixed frame 6 can be fixed, the steel wire mesh 9 on the fixing frame 8 does not affect the sunlight irradiation, and can prevent birds and small animals from nibbling or trampling the seedlings, so as to ensure that the growth of the seedlings will not be affected by these factors, after the second fixed frame 7 is fixed and installed in the two limiting grooves 5 through the above operation, the transparent cover 10 can keep the seedlings warm, and the seedlings can ventilate.

[0084] The embodiments of the present application are described above in combination with the drawings, the embodiments in the present application and the features in the embodiments can be combined with each other without conflict, the present application is not limited to the above specific embodiments, the above specific embodiments are only illustrative, not restrictive, and those skilled in the art can make many forms under the inspiration of the present application without departing from the scope of the present application and the protection scope of the claims, all of which belong to the protection of the present application.

Claims

1. A seedling sealing and protecting device for tobacco, comprising a base (1), two sliding plates (4) and a plurality of fixing blocks (11), characterized in that, Also includes: Two sunshields (2), two said sunshields (2) are rotatably installed in the base (1), two sliding grooves (3), two said sliding grooves (3) are opened in the base (1), two said sliding plates (4) are slidably installed between two sliding grooves (3), a plurality of said fixed blocks (11) are fixedly installed on two sliding plates (4); Two limiting grooves (5), two said limiting grooves (5) are opened in two sliding plates (4), two said limiting grooves (5) are inserted and installed with first fixed frame (6) and second fixed frame (7), the top of the first fixed frame (6) is fixedly installed with fixed frame (8), the top and the side of the fixed frame (8) are fixedly installed with steel wire mesh (9), the top of the second fixed frame (7) is fixedly installed with transparent cover (10); Driving assembly, the driving assembly is located in the base (1), and is used for driving two sliding plates (4) to slide and two sunshields (2) to rotate; Two groups of fixed components, two groups of said fixed components are respectively located in two sliding plates (4), and are used for fixing the position of first fixed frame (6) and second fixed frame (7).

2. A seedling sealing and protecting device for tobacco according to claim 1, characterized in that, The driving assembly comprises: Threaded rod (12), the threaded rod (12) is rotatably installed in one of the sliding grooves (3), one end of the threaded rod (12) penetrates two sliding plates (4) and one of the sliding grooves (3) and extends to the outside, two segments of threads with opposite rotation directions are provided on the threaded rod (12), and the threaded rod (12) is threadedly connected with the two sliding plates (4); Power cavity (13), the power cavity (13) is opened in the base (1), the worm gear (14) is rotatably installed in the power cavity (13), the top of the worm gear (14) is engagedly installed with the worm (15), one end of the worm (15) penetrates the power cavity (13) and extends to the outside, both ends of the worm gear (14) are fixedly installed with first bevel gears (16), both sides of two said first bevel gears (16) are engagedly installed with second bevel gears (17), two said second bevel gears (17) are located on one side of two sunshields (2), two said second bevel gears (17) penetrate the power cavity (13) and are fixedly connected with two sunshields (2) respectively.

3. A seedling sealing and protecting device for tobacco according to claim 2, characterized in that, The fixed component comprises: A first gear (18) is rotatably installed in the limiting groove (5), and the two sides of the first gear (18) are engaged with the racks (19), the bottoms of the two racks (19) are fixedly installed with the limiting strips (20), one side of the two limiting strips (20) extends into the first fixed frame (6) and the second fixed frame (7), one side of the two limiting strips (20) is insertedly connected with the first fixed frame (6) and the second fixed frame (7), one side of the two limiting strips (20) away from each other is fixedly installed with the springs (21) fixed to the inner wall of the limiting groove (5), one end of one of the limiting strips (20) is fixedly installed with the fixed plate (22), and the upper end of the fixed plate (22) extends to the outside through the limiting groove (5).

4. A seedling sealing and protecting device for tobacco according to claim 3, characterized in that, One of the fixed plates (22) is fixedly installed with the fixed strip (23), one end of the fixed strip (23) extends into the other fixed plate (22), and one end of the fixed strip (23) is insertedly connected with the other fixed plate (22).

5. A seedling sealing and protecting device for tobacco according to claim 2, characterized in that, One end of the threaded rod (12) is fixedly installed with the first operation disc (24), and one end of the worm (15) is fixedly installed with the second operation disc (25).

6. A seedling sealing and protecting device for tobacco according to claim 1, characterized in that, The first fixed frame (6) is located inside the second fixed frame (7), and the first fixed frame (6) is in close contact with the second fixed frame (7).

7. A seedling sealing and protecting device for tobacco according to claim 3, characterized in that, The worm (15), the two first bevel gears (16) and the two second bevel gears (17) are rotatably connected with the power cavity (13), and the two racks (19), the two limiting strips (20) and the fixed plate (22) are slidably connected with the limiting groove (5).

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