Ventilation system for tobacco seedling raising shed

Abstract

The utility model discloses a tobacco seedling raising shed ventilation system which comprises a shed body, one end of the inner wall of the shed body is fixedly connected with an air inlet box, the other end of the inner wall of the shed body is fixedly connected with an air outlet box, multiple sets of ventilation grooves are formed in the air inlet box and the air outlet box, and the inner wall of a U-shaped frame is slidably connected with a second baffle capable of blocking the ventilation grooves. The ventilation slots in the air inlet box can convey external air into the greenhouse body, meanwhile, the ventilation slots in the air outlet box can exhaust air in the greenhouse body out of the greenhouse body, so that ventilation of the seedling growing greenhouse is achieved, and when the second baffles completely slide out of the U-shaped frames, the ventilation slots can be blocked, so that ventilation of the interior of the greenhouse body is finished. When the second baffle completely slides into the U-shaped frame, the second baffle can be stored, meanwhile, the interior of the seedling raising shed can be ventilated, the time and physical strength of workers are saved, and meanwhile the use difficulty of the ventilation structure is lowered.

Description

Technical Field

[0001] The utility model relates to the technical field of tobacco seedling raising sheds, in particular to a ventilation system for tobacco seedling raising sheds. Background Art

[0002] A tobacco seedling nursery is a greenhouse facility specially used for cultivating tobacco seedlings. This type of greenhouse usually has good thermal insulation, moisture retention and ventilation properties to provide a suitable growth environment. The construction of a tobacco seedling nursery needs to consider many factors, such as geographical location, climatic conditions, soil conditions, etc. Generally speaking, a tobacco seedling nursery should be built in a place with sufficient light, good drainage and fertile soil.

[0003] In the process of using the tobacco seedling shed in the prior art, the shed film is usually opened for ventilation, but the ventilation efficiency is low and the effect is poor, which affects the normal growth of the tobacco seedlings and the use effect is poor. Based on these problems, Chinese patent CN216820966U discloses a ventilation device for tobacco seedling shed, wherein a rotating rocker drives a screw rod to rotate, and the screw rod drives a trapezoidal block to slide along a trapezoidal groove, and drives a motor to slide to a suitable use position, at which time a rotating shaft slides along a fixed block, so that a worm and a worm gear are meshed for transmission, and the worm gear drives a rotating rod to rotate along a cross bar to drive a fan blade to rotate, and the outer The external air is transported to the interior of the shed along the air duct through the rotating fan blades, and the motor at the rear end rotates in the opposite direction, so that the fan blades at the rear end rotate in the opposite direction, which is convenient for ventilation and air exchange inside the shed. When ventilation and air exchange are not required, the above steps can be reversed. This solves the problem of opening the shed film for ventilation and air exchange, low ventilation efficiency, poor effect, affecting the normal growth of tobacco seedlings, and poor use effect. The ventilation and air exchange efficiency of the tobacco seedling shed is better, and it is convenient, quick and effective to use, which provides favorable conditions for the growth of plants inside the tobacco seedling shed.

[0004] When ventilating the inside of the tobacco seedling shed, the staff needs to slide the trapezoidal block on the screw to allow the worm to engage with the worm wheel. Since the worm is exposed outside the seedling shed, a lot of dust or dirt is easily accumulated in the groove of the worm, so it is difficult for the worm to successfully engage with the worm wheel. Secondly, by installing blocks on the air duct, the loss of temperature inside the shed can be controlled. If the inside of the shed needs to be ventilated, the blocks need to be removed. This process not only wastes the staff's time and energy, but also increases the difficulty of storing the blocks. Utility Model Content

[0005] The purpose of this section is to summarize some aspects of the embodiments of the utility model and briefly introduce some preferred embodiments. Some simplifications or omissions may be made in this section and the specification abstract and utility model name of this application to avoid blurring the purpose of this section, specification abstract and utility model name, and such simplifications or omissions cannot be used to limit the scope of the utility model.

[0006] To solve the above problems, the utility model adopts the following technical solutions.

[0007] A tobacco seedling shed ventilation system comprises a shed body, wherein one end of the shed body inner wall is fixedly connected to an air inlet box, the other end of the shed body inner wall is fixedly connected to an air outlet box, a plurality of ventilation slots are provided in the air inlet box and the air outlet box, a hollow plate is fixedly connected to the same end of both sides of the inner wall of the ventilation slot, a cross bar is rotatably connected to the inner wall of the hollow plate, a second bevel gear is fixedly connected to one end of the outer wall of the cross bar, a plurality of fan blades are fixedly connected to the other end of the outer wall of the cross bar, a plurality of hollow shells are fixedly connected to the opposite sides of the air inlet box and the air outlet box, a U-shaped frame is fixedly connected to the front end of the hollow shell, a second baffle capable of blocking the ventilation slot is slidably connected to the inner wall of the U-shaped frame.

[0008] As a further description of the above technical solution:

[0009] Top boxes are welded to the tops of the air inlet box and the air outlet box, both ends of the outer wall of one side of the top box are fixedly connected with slide rails, and the inner wall of the slide rail is slidably connected with a first baffle.

[0010] As a further description of the above technical solution:

[0011] A motor passes through the center of the top of the top box, and both ends of the top of the inner wall of the top box are fixedly connected with rotating shafts, and the rotating shafts are arranged on both sides of the motor. The movable end of the motor and the bottom end of the rotating shaft are rotatably connected with gear shafts, and the tooth grooves on the outer wall of the gear shaft are meshed with gear belts.

[0012] As a further description of the above technical solution:

[0013] A rotating rod is welded to the bottom of the gear shaft, a first bevel gear is welded to the bottom of the rotating rod, the gear protrusions of the first bevel gear are meshed with the tooth grooves of the second bevel gear, and a dustproof ventilation net is fixedly connected to the other end of the inner wall of the ventilation slot.

[0014] As a further description of the above technical solution:

[0015] A sleeve is vertically penetrated at the center and both ends of the top of the air inlet box and the air outlet box, the inner space of the sleeve is interconnected with the inner space of the ventilation slot, and the top end of the outer wall of the rotating rod is rotatably connected to the inner wall of the sleeve.

[0016] As a further description of the above technical solution:

[0017] A shaft body passes through the front end of one side of the inner wall of the hollow shell, a first turntable is welded to one end face of the shaft body, a second turntable is welded to the other end face of the shaft body, an arc-shaped gear bar is fixedly connected to the outer wall of the second turntable, a slip ring is slidably connected to the inner wall of the hollow shell, a spur gear bar is fixedly connected to the top and bottom ends of the inner wall of the slip ring, and the gear protrusion of the arc-shaped gear bar can engage with the tooth groove of the spur gear bar.

[0018] As a further description of the above technical solution:

[0019] The front ends of the slip rings are fixedly connected with connecting blocks, and the front ends of the connecting blocks are welded to the center of the rear end of the second baffle.

[0020] Compared with the prior art, the beneficial effects of the utility model are:

[0021] (1) The ventilation slots in the air inlet box can transport external air to the interior of the shed, while the ventilation slots in the air outlet box can discharge the gas inside the shed to the outside of the shed, thereby realizing ventilation of the seedling shed. When the second baffle completely slides out of the U-shaped frame, the ventilation slots can be blocked, thereby ending the ventilation inside the shed. When the second baffle completely slides into the U-shaped frame, not only can the second baffle be stored, but the interior of the seedling shed can also be ventilated, which not only saves the time and energy of the staff, but also reduces the difficulty of using the ventilation structure.

[0022] (2) When the motor is turned on, the rotating gear shaft at the movable end of the motor can move with the gear belt, and the moving gear belt can rotate with the gear shafts at the bottom of the two sets of rotating shafts. By setting a connection structure between the first bevel gear and the second bevel gear, the first bevel gear can drive the second bevel gear to rotate together. When the second bevel gear rotates, the fan blades will also rotate together. At this time, the ventilation slots in the air inlet box will quickly transport the outside air to the inside of the shed, and at the same time, the ventilation slots in the air outlet box will quickly transport the gas inside the shed to the outside. The gear is discharged outside the shelf by setting a connecting structure between the arc-shaped gear bar and the spur gear bar. When the second turntable rotates clockwise, the arc-shaped gear bar contacts the upper spur gear bar to push the slip ring to the right, and the arc-shaped gear bar contacts the lower spur gear bar to push the slip ring to the left. When the second turntable rotates counterclockwise, the arc-shaped gear bar contacts the upper spur gear bar to push the slip ring to the left, and the arc-shaped gear bar contacts the lower spur gear bar to push the slip ring to the right. In the process of the slip ring sliding left and right, the second baffle can be moved. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] Figure 1 This is one of the structural schematic diagrams of the utility model;

[0024] Figure 2 This is the second structural diagram of the utility model;

[0025] Figure 3 It is a right view of the utility model;

[0026] Figure 4 It is a left view of the utility model;

[0027] Figure 5 It is a right side sectional view of the utility model;

[0028] Figure 6 For this utility model Figure 5 A partial enlarged view of the middle A area;

[0029] Figure 7 For this utility model Figure 5 A partial enlarged view of area B in the middle.

[0030] The corresponding relationship between the illustrations and component names in the figure is as follows:

[0031] 1. Shed body; 2. Air inlet box; 3. Air outlet box; 4. Top box; 5. Slide rail; 6. First baffle; 7. Motor; 8. Rotating shaft; 9. Gear shaft; 10. Gear belt; 11. Rotating rod; 12. First bevel gear; 13. Ventilation slot; 14. Sleeve; 15. Hollow plate; 16. Cross bar; 17. Second bevel gear; 18. Fan blade; 19. Dust-proof ventilation net; 20. Hollow shell; 21. U-shaped frame; 22. First turntable; 23. Shaft body; 24. Second turntable; 25. Arc gear bar; 26. Slip ring; 27. Straight gear bar; 28. Connecting block; 29. ​​Second baffle. DETAILED DESCRIPTION

[0032] In order to make the above-mentioned objects, features and advantages of the present invention more obvious and easy to understand, the specific implementation methods of the present invention are described in detail below in conjunction with the accompanying drawings.

[0033] In the following description, many specific details are set forth to facilitate a full understanding of the present invention, but the present invention may also be implemented in other ways different from those described herein, and those skilled in the art may make similar generalizations without violating the connotation of the present invention. Therefore, the present invention is not limited to the specific embodiments disclosed below.

[0034] Secondly, the term "one embodiment" or "embodiment" as used herein refers to a specific feature, structure or characteristic that may be included in at least one implementation of the present invention. The term "in one embodiment" that appears in different places in this specification does not refer to the same embodiment, nor is it a separate or selective embodiment that is mutually exclusive with other embodiments. The present invention provides the following embodiments.

[0035] Reference Figure 1-7, the utility model provides an embodiment: a ventilation system for a tobacco seedling shed, comprising a shed body 1, an air inlet box 2 is fixedly connected to one end of the inner wall of the shed body 1, and an air outlet box 3 is fixedly connected to the other end of the inner wall of the shed body 1, the sizes of the air inlet box 2 and the air outlet box 3 are the same, the bottom surfaces of the shed body 1, the air inlet box 2 and the air outlet box 3 are arranged on the same horizontal plane, the top of the air inlet box 2 and the air outlet box 3 are welded with a top box 4, the bottom of the top box 4 is provided with a square opening, the two ends of the outer wall of one side of the top box 4 are fixedly connected with a slide rail 5, and the inner wall of the slide rail 5 is slidably connected with a first baffle 6, by setting a simple connection method between the first baffle 6 and the slide rail 5, the disassembly and assembly steps of the first baffle 6 are more convenient and quick, and it is also convenient for the staff to check the parts inside the top box 4 For repair or replacement, a motor 7 passes through the center of the top of the top box 4, and both ends of the top of the inner wall of the top box 4 are fixedly connected with a rotating shaft 8, and the rotating shaft 8 is arranged on both sides of the motor 7. The movable end of the motor 7 and the bottom end of the rotating shaft 8 are rotatably connected with a gear shaft 9, and the tooth grooves on the outer wall of the gear shaft 9 are meshed with a gear belt 10. A group of gear belts 10 can be connected with three groups of gear shafts 9 at the same time. When the motor 7 is turned on, the rotating gear shaft 9 at the movable end of the motor 7 can move with the gear belt 10, and the moving gear belt 10 can rotate with the gear shafts 9 at the bottom ends of the two groups of rotating shafts 8. A rotating rod 11 is welded at the bottom of the gear shaft 9, and a first bevel gear 12 is welded at the bottom of the rotating rod 11. When the gear shaft 9 rotates, the first bevel gear 12 at the bottom of the rotating rod 11 will also rotate.

[0036] A ventilation slot 13 is provided in the air inlet box 2 and the air outlet box 3. A sleeve 14 is vertically penetrated at the top center and both ends of the air inlet box 2 and the air outlet box 3. The internal space of the sleeve 14 is communicated with the internal space of the ventilation slot 13. The top of the outer wall of the rotating rod 11 is rotatably connected to the inner wall of the sleeve 14. A hollow plate 15 is fixedly connected to the same end of both sides of the inner wall of the ventilation slot 13. A cross bar 16 is rotatably connected to the inner wall of the hollow plate 15. A second bevel gear 17 is fixedly connected to one end of the outer wall of the cross bar 16. The gear protrusions of the first bevel gear 12 are meshed with the tooth grooves of the second bevel gear 17. By setting a connection structure between the first bevel gear 12 and the second bevel gear 17, the first bevel gear 12 is connected to the second bevel gear 17. The wheel 12 can drive the second bevel gear 17 to rotate together, and the other end of the outer wall of the cross bar 16 is fixedly connected to a plurality of sets of fan blades 18. When the second bevel gear 17 rotates, the fan blades 18 will also rotate together. At this time, the ventilation slots 13 in the air inlet box 2 will transport the outside air to the inside of the shed body 1, and at the same time, the ventilation slots 13 in the air outlet box 3 will discharge the gas inside the shed body 1 to the outside of the shed body 1, thereby realizing ventilation of the seedling shed. The other end of the inner wall of the ventilation slot 13 is fixedly connected to a dustproof ventilation net 19. By setting the dustproof ventilation net 19, external dust or hair can be blocked, thereby preventing external dust or hair from entering the interior of the shed body 1 from the ventilation slot 13.

[0037] The opposite sides of the air inlet box 2 and the air outlet box 3 are fixedly connected to multiple groups of hollow shells 20, the front ends of the hollow shells 20 are fixedly connected to U-shaped frames 21, the front ends of one side of the inner wall of the hollow shells 20 are penetrated by shafts 23, one end face of the shafts 23 is welded with a first turntable 22, and the other end face of the shafts 23 is welded with a second turntable 24. The first turntable 22 can be used to rotate the second turntable 24 in the hollow shell 20, and the outer wall of the second turntable 24 is fixedly connected to an arc-shaped gear bar 25, and the inner wall of the hollow shell 20 is slidably connected to a slip ring 26, and the top and bottom ends of the inner wall of the slip ring 26 are fixedly connected to a spur gear bar 27, and the gear protrusion of the arc-shaped gear bar 25 can mesh with the tooth groove of the spur gear bar 27. By setting a connection structure between the arc-shaped gear bar 25 and the spur gear bar 27, when the second turntable 24 is rotated clockwise, the arc-shaped gear bar 25 contacts The upper spur gear bar 27 will push the slip ring 26 to the right, and the arc-shaped gear bar 25 contacts the lower spur gear bar 27 to push the slip ring 26 to the left. When the second turntable 24 rotates counterclockwise, the arc-shaped gear bar 25 contacts the upper spur gear bar 27 to push the slip ring 26 to the left, and the arc-shaped gear bar 25 contacts the lower spur gear bar 27 to push the slip ring 26 to the right. The front end of the slip ring 26 is fixedly connected with a connecting block 28, and the front end of the connecting block 28 is fixedly connected with a second baffle 29. In the process of the slip ring 26 sliding left and right, the second baffle 29 can be moved. When the second baffle 29 blocks the dust-proof ventilation net 19, it can not only directly remove the dust or fluff attached to the surface of the dust-proof ventilation net 19, but also block the ventilation slot 13. At this time, the ventilation inside the shed 1 ends.

[0038] The above content is a further detailed description of the utility model in combination with specific implementation methods. It cannot be determined that the specific implementation of the utility model is limited to these descriptions. For ordinary technicians in the technical field to which the utility model belongs, without departing from the concept of the utility model, they can also make several simple deductions or substitutions, which should be regarded as belonging to the scope of protection determined by the claims submitted for the utility model.

Claims

1. A tobacco seedling shed ventilation system, comprising a shed body (1), characterized in that: One end of the inner wall of the shed body (1) is fixedly connected to an air inlet box (2), and the other end of the inner wall of the shed body (1) is fixedly connected to an air outlet box (3). Multiple groups of ventilation slots (13) are provided in the air inlet box (2) and the air outlet box (3). The same end of the inner wall of both sides of the ventilation slot (13) is fixedly connected to a hollow plate (15). The inner wall of the hollow plate (15) is rotatably connected to a cross bar (16). One end of the outer wall of the cross bar (16) is fixedly connected to a second bevel gear (17), and the other end of the outer wall of the cross bar (16) is fixedly connected to multiple groups of fan blades (18). The opposite sides of the air inlet box (2) and the air outlet box (3) are fixedly connected to multiple groups of hollow shells (20). The front end of the hollow shells (20) is fixedly connected to a U-shaped frame (21), and the inner wall of the U-shaped frame (21) is slidably connected to a second baffle (29) capable of blocking the ventilation slot (13).

2. A tobacco seedling shed ventilation system according to claim 1, characterized in that: A top box (4) is welded to the top of the air inlet box (2) and the air outlet box (3); both ends of the outer wall of one side of the top box (4) are fixedly connected to a slide rail (5); and the inner wall of the slide rail (5) is slidably connected to a first baffle (6).

3. A tobacco seedling shed ventilation system according to claim 2, characterized in that: A motor (7) is passed through the center of the top of the top box (4); both ends of the top of the inner wall of the top box (4) are fixedly connected to a rotating shaft (8); the rotating shaft (8) is arranged on both sides of the motor (7); the movable end of the motor (7) and the bottom end of the rotating shaft (8) are rotatably connected to a gear shaft (9); the tooth grooves on the outer wall of the gear shaft (9) are meshed with a gear belt (10).

4. A tobacco seedling shed ventilation system according to claim 3, characterized in that: A rotating rod (11) is welded to the bottom of the gear shaft (9), a first bevel gear (12) is welded to the bottom of the rotating rod (11), the gear protrusions of the first bevel gear (12) are meshed with the tooth grooves of the second bevel gear (17), and the other end of the inner wall of the ventilation groove (13) is fixedly connected with a dustproof ventilation net (19).

5. A tobacco seedling shed ventilation system according to claim 4, characterized in that: A sleeve (14) vertically penetrates the center and both ends of the top of the air inlet box (2) and the air outlet box (3); the internal space of the sleeve (14) is interconnected with the internal space of the ventilation slot (13); and the top end of the outer wall of the rotating rod (11) is rotatably connected to the inner wall of the sleeve (14).

6. A tobacco seedling shed ventilation system according to claim 1, characterized in that: A shaft body (23) is passed through the front end of one side of the inner wall of the hollow shell (20); a first rotating disk (22) is welded to one end surface of the shaft body (23); a second rotating disk (24) is welded to the other end surface of the shaft body (23); an arc-shaped gear bar (25) is fixedly connected to the outer wall of the second rotating disk (24); a slip ring (26) is slidably connected to the inner wall of the hollow shell (20); a spur gear bar (27) is fixedly connected to the top and bottom ends of the inner wall of the slip ring (26); and the gear protrusion of the arc-shaped gear bar (25) can mesh with the tooth groove of the spur gear bar (27).

7. A tobacco seedling shed ventilation system according to claim 6, characterized in that: The front ends of the slip rings (26) are fixedly connected with connecting blocks (28), and the front ends of the connecting blocks (28) are welded to the center of the rear ends of the second baffles (29).

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