Negative pressure type ventilation device for granary
By designing a negative pressure ventilation device, including an adjustment exhaust mechanism and a limit installation mechanism, the problem that the existing granary ventilation device cannot be ventilated according to the specific situation is solved, fixed-point exhaust and convenient operation are achieved, and ventilation effect and grain quality protection are improved.
Patent Information
- Application Number
- CN202421358878.8
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-06-14
- Publication Date
- 2025-03-25
- Estimated Expiration
- 2034-06-14
AI Technical Summary
The existing granary ventilation device cannot ventilate specific parts according to the specific situation, which leads to inconvenience in use and is prone to damage the quality of the grain due to excessive heat.
A negative pressure ventilation device is designed, including a fixed support frame, a fully enclosed granary baffle, a vent hole, an adjustable exhaust mechanism and a limit installation mechanism. By adjusting the exhaust mechanism, the height of the small exhaust fan can be adjusted to perform fixed-point exhaust for areas with higher heat; through the limit installation mechanism, the main exhaust fan can be easily limited to fix and install.
It realizes ventilation of specific parts according to specific circumstances, enhances ventilation effect, avoids the problem of food being damaged due to excessive heat, and makes use more convenient.
Smart Images
Figure CN222655805U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of ventilation devices, in particular to a negative pressure ventilation device used in a granary. Background Art
[0002] Granaries are special buildings for storing grain. They are used to store large amounts of grain. During the grain stacking process, heat will accumulate due to the respiration of the grain. If ventilation is not carried out, the quality of the grain will be damaged due to excessive heat, which will cause grain weaving and cause economic losses. Most of the existing granary ventilation devices adopt the form of fixed ventilation to the inside of the device, and it is impossible to ventilate specific parts according to specific circumstances, causing inconvenience in use. Utility Model Content
[0003] The purpose of the utility model is to provide a negative pressure ventilation device for a granary to solve the problems raised in the above background technology.
[0004] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a negative pressure ventilation device for a granary, comprising a fixed support frame, a fully surrounding granary baffle is fixedly installed inside the fixed support frame, a grain hopper is fixedly installed on the bottom of the fixed support frame, and the granary baffles on both sides of the fixed support frame are provided with a plurality of ventilation holes, a lower mounting plate is fixedly connected to the outside of the fixed support frame, four side mounting plates are fixedly connected to the top of the lower mounting plate, a fan mounting plate is fixedly installed on one side of one of the side mounting plates through a limiting mounting mechanism, a main exhaust fan is fixedly installed inside the fan mounting plate, a connecting hole is opened on one side of the side mounting plate away from the main exhaust fan, the tops of the four side mounting plates are fixedly connected to the top mounting plate, four adjusting motors are fixedly installed on the top of the top mounting plate, and the bottoms of the four adjusting motors are provided with adjusting exhaust mechanisms.
[0005] Preferably, the adjusting exhaust mechanism mainly includes an adjusting screw and an adjusting movable block, four ventilation pipes are fixedly connected to the bottom of the granary baffle at the top, a plurality of air holes are opened in the circumference of the four ventilation pipes, the bottoms of the four ventilation pipes are fixedly connected to the top of the grain hopper, the output ends of the four adjusting motors are fixedly connected to the adjusting screws, the bottoms of the four adjusting screws are rotatably connected to the top of the grain hopper, the four adjusting screws are arranged inside the ventilation pipe and the outsides of the four adjusting screws are threadedly connected to the adjusting movable block, the four adjusting movable blocks are slidably connected to the inside of the ventilation pipe, fixed mounting blocks are fixedly installed in four directions inside the four adjusting movable blocks, a small exhaust fan is fixedly connected to the inside of the fixed mounting blocks, the output ends of the small exhaust fan are fixedly connected to the air duct, and the air duct is arranged on the top of the adjusting movable block.
[0006] Preferably, the limit mounting mechanism mainly includes a limit sliding block and a limit spring, the top and bottom of the fan mounting plate are fixedly connected to the limit mounting block, both sides of the limit mounting block are slidably connected to the limit sliding block, the limit sliding block matches the shape of the groove opened inside the side mounting plate, the top and bottom of the limit sliding block are fixedly connected to the side sliding block, the inside of the side sliding block is slidably connected to a sliding guide rod fixedly connected to the inside of the limit mounting block, and the outside of the sliding guide rod is sleeved with a limit spring.
[0007] Preferably, both sides of the fan mounting plate are fixedly connected with limit fixing blocks, the shape of the limit fixing blocks matches the grooves on both sides of the side mounting plates, and the limit fixing blocks are fixedly connected to the side mounting plates by mounting screws.
[0008] Preferably, there are cavities between the four side mounting plates and the one top mounting plate and the granary baffle.
[0009] Preferably, the four corners of the bottom of the fixed support frame are fixedly connected with support pads, and the bottom of the support pads is provided with an anti-slip pad.
[0010] Preferably, a battery is fixedly connected between the four regulating motors, and the battery is electrically connected to the four regulating motors.
[0011] Preferably, the main exhaust fan is electrically connected to an external power supply, and a waterproof layer is provided on the outside of the main exhaust fan.
[0012] Compared with the prior art, the beneficial effects of the utility model are: by setting up an adjustable exhaust mechanism, the adjusting motor can be turned on, and the height of the small exhaust fan can be adjusted by adjusting the adjusting moving block, so as to perform fixed-point exhaust for the area with higher heat inside the granary. At the same time, through the limiting installation mechanism, the main exhaust fan can be conveniently limited first, and then fixedly installed by installing screws, which is convenient for use and operation. BRIEF DESCRIPTION OF THE DRAWINGS
[0013] Figure 1 It is a three-dimensional structural schematic diagram of the utility model;
[0014] Figure 2 It is a schematic diagram of the three-dimensional structure inside one side of the utility model;
[0015] Figure 3 This is a schematic diagram of the internal structure of the utility model without the side mounting plate;
[0016] Figure 4 This is a schematic diagram of the internal structure of the air exhaust mechanism of the utility model;
[0017] Figure 5This is the internal structure diagram of the limit installation mechanism of the utility model.
[0018] In the figure: 1. Fixed support frame; 2. Granary baffle; 3. Ventilation hole; 4. Lower mounting plate; 5. Side mounting plate; 6. Top mounting plate; 7. Adjustment motor; 8. Adjustment screw rod; 9. Grain hopper; 10. Adjustment moving block; 11. Fixed mounting block; 12. Small exhaust fan; 13. Air guide duct; 14. Ventilation duct; 15. Ventilation hole; 16. Fan mounting plate; 17. Limit mounting block; 18. Limit sliding block; 19. Side sliding block; 20. Sliding guide rod; 21. Limit spring; 22. Limit fixing block; 23. Mounting screw; 24. Main exhaust fan; 25. Connecting hole; 26. Support pad; 27. Adjustment exhaust mechanism; 28. Limit mounting mechanism. DETAILED DESCRIPTION
[0019] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.
[0020] See also Figure 1-5 The utility model provides a technical solution: a negative pressure ventilation device for a granary, comprising a fixed support frame 1, a fully surrounding granary baffle 2 is fixedly installed inside the fixed support frame 1, a grain hopper 9 is fixedly installed at the bottom of the fixed support frame 1, and the granary baffles 2 on both sides of the fixed support frame 1 are provided with a plurality of ventilation holes 3, a lower mounting plate 4 is fixedly connected to the outside of the fixed support frame 1, four side mounting plates 5 are fixedly connected to the top of the lower mounting plate 4, a fan mounting plate 16 is fixedly installed on one side of one of the side mounting plates 5 through a limiting mounting mechanism 28, a main exhaust fan 24 is fixedly installed inside the fan mounting plate 16, and a connecting hole 25 is opened on one side of the side mounting plate 5 away from the main exhaust fan 24, and a top mounting plate 6 is fixedly connected to the top of the four side mounting plates 5, and four adjusting motors 7 are fixedly installed on the top of the top mounting plate 6, and an adjusting exhaust mechanism 27 is provided at the bottom of the four adjusting motors 7.
[0021] Furthermore, the regulating exhaust mechanism 27 mainly includes an regulating screw rod 8 and an regulating movable block 10, the bottom of the top granary baffle 2 is fixedly connected with four ventilation pipes 14, a plurality of air holes 15 are opened around the four ventilation pipes 14, the bottoms of the four ventilation pipes 14 are fixedly connected with the top of the grain hopper 9, the output ends of the four regulating motors 7 are fixedly connected with the regulating screw rods 8, the bottoms of the four regulating screw rods 8 are rotatably connected with the top of the grain hopper 9, the four regulating screw rods 8 are arranged inside the ventilation pipe 14 and the outsides of the four regulating screw rods 8 are threadedly connected with the regulating movable block 10, the four regulating movable blocks 10 are slidably connected with the inside of the ventilation pipe 14, the four regulating movable blocks 10 are fixedly installed with fixed mounting blocks 11 in four directions, the inside of the fixed mounting blocks 11 are fixedly connected with a small exhaust fan 12, the output ends of the small exhaust fan 12 are fixedly connected with an air duct 13, and the air duct 13 is arranged on the top of the regulating movable block 10.
[0022] Furthermore, the limit mounting mechanism 28 mainly includes a limit sliding block 18 and a limit spring 21. The top and bottom of the fan mounting plate 16 are fixedly connected to the limit mounting block 17, and both sides of the limit mounting block 17 are slidably connected to the limit sliding block 18. The limit sliding block 18 matches the shape of the groove opened inside the side mounting plate 5. The top and bottom of the limit sliding block 18 are fixedly connected to the side sliding block 19, and the inside of the side sliding block 19 is slidably connected to a sliding guide rod 20 fixedly connected to the inside of the limit mounting block 17, and the outside of the sliding guide rod 20 is sleeved with a limit spring 21.
[0023] Furthermore, both sides of the fan mounting plate 16 are fixedly connected with limit fixing blocks 22 , the shape of the limit fixing blocks 22 matches the grooves on both sides of the side mounting plate 5 , and the limit fixing blocks 22 are fixedly connected to the side mounting plate 5 by mounting screws 23 .
[0024] Furthermore, there are cavities between the four side mounting plates 5 and the one top mounting plate 6 and the granary baffle 2 .
[0025] Furthermore, four corners of the bottom of the fixed support frame 1 are fixedly connected with support pads 26 , and the bottom of the support pads 26 is provided with anti-slip pads.
[0026] Furthermore, a battery is fixedly connected between the four regulating motors 7 , and the battery is electrically connected to the four regulating motors 7 .
[0027] Furthermore, the main exhaust fan 24 is electrically connected to an external power source, and a waterproof layer is provided on the outside of the main exhaust fan 24 .
[0028] Specifically, when using the utility model, firstly, the grain is loaded into the enclosed grain bin baffle 2, and then the fan mounting plate 16 is inserted into the side mounting plate 5 by aligning with the empty slot on the side mounting plate 5. As the limiting mounting block 17 slides toward the inside of the side mounting plate 5, the limiting sliding block 18 will first slide and shrink inside the limiting mounting block 17, and then the limiting sliding block 18 will be pushed out under the action of the limiting spring 21, so as to limit and fix the fan mounting plate 16, and then the mounting screws 23 are screwed into the threaded holes on the limiting fixing block 22 to fix the fan mounting plate 16 on the side mounting plate 5. When ventilation is performed, the main exhaust fan 24 is turned on, and the main exhaust fan 24 draws air into the inside of the side mounting plate 5 along the connecting hole 25 through the negative pressure, and then extracts the device to achieve cooling. When local ventilation is performed, the adjusting motor 7 is started to drive the adjusting screw rod 8 to rotate, so as to adjust the height of the adjusting movable block 10, and then each small exhaust fan 12 is remotely turned on to ventilate the inside of the device and enhance the ventilation effect.
[0029] In the description of the present invention, it should be understood that the terms "coaxial", "bottom", "one end", "top", "middle", "the other end", "upper", "one side", "top", "inside", "front", "center", "both ends" and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as a limitation on the present invention.
[0030] In addition, the terms "first", "second", "third" and "fourth" are used for descriptive purposes only and are not to be understood as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, the features defined as "first", "second", "third" and "fourth" may explicitly or implicitly include at least one of such features.
[0031] In the present utility model, unless otherwise clearly stipulated and limited, the terms such as "installation", "setting", "connection", "fixation" and "screw-on" should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or an integrated connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium, it can be the internal connection of two elements or the interaction relationship between two elements. Unless otherwise clearly defined, ordinary technicians in this field can understand the specific meanings of the above terms in the utility model according to the specific circumstances.
[0032] Although the embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.
Claims
1. A negative pressure ventilation device for a granary, comprising a fixed support frame (1), characterized in that: A fully enclosing granary baffle (2) is fixedly installed inside the fixed support frame (1), a grain hopper (9) is fixedly installed at the bottom of the fixed support frame (1), and a plurality of ventilation holes (3) are provided on the granary baffles (2) on both sides of the fixed support frame (1). A lower mounting plate (4) is fixedly connected to the outside of the fixed support frame (1), and four side mounting plates (5) are fixedly connected to the top of the lower mounting plate (4). A fan mounting plate (16) is fixedly installed on one side of one of the side mounting plates (5) through a limit mounting mechanism (28). A main exhaust fan (24) is fixedly installed inside the fan mounting plate (16), and a connecting hole (25) is provided on one side of the side mounting plate (5) away from the main exhaust fan (24). The tops of the four side mounting plates (5) are fixedly connected to a top mounting plate (6), and four adjusting motors (7) are fixedly installed on the top of the top mounting plate (6). The bottoms of the four adjusting motors (7) are each provided with an adjusting exhaust mechanism (27).
2. A negative pressure ventilation device for a granary according to claim 1, characterized in that: The regulating exhaust mechanism (27) mainly comprises an regulating screw rod (8) and an regulating movable block (10); the bottom of the grain bin baffle (2) at the top is fixedly connected with four ventilation pipes (14); a plurality of air holes (15) are opened in the circumference of the four ventilation pipes (14); the bottoms of the four ventilation pipes (14) are fixedly connected with the top of the grain hopper (9); the output ends of the four regulating motors (7) are fixedly connected with the regulating screw rods (8); the bottoms of the four regulating screw rods (8) are rotatably connected with the top of the grain hopper (9); the four regulating screw rods (8) are provided with An adjusting movable block (10) is threadedly connected inside the ventilation pipe (14) and outside the four adjusting screw rods (8); the four adjusting movable blocks (10) are slidably connected to the inside of the ventilation pipe (14); fixed mounting blocks (11) are fixedly mounted in four directions inside the four adjusting movable blocks (10); a small exhaust fan (12) is fixedly connected inside the fixed mounting blocks (11); an output end of the small exhaust fan (12) is fixedly connected to an air guide pipe (13); and the air guide pipe (13) is arranged on the top of the adjusting movable block (10).
3. A negative pressure ventilation device for a granary according to claim 1, characterized in that: The limit installation mechanism (28) mainly comprises a limit sliding block (18) and a limit spring (21); the top and bottom of the fan installation plate (16) are fixedly connected to the limit installation block (17); both sides of the limit installation block (17) are slidably connected to the limit sliding block (18); the limit sliding block (18) matches the shape of a groove opened inside the side installation plate (5); the top and bottom of the limit sliding block (18) are fixedly connected to the side sliding block (19); the inside of the side sliding block (19) is slidably connected to a sliding guide rod (20) fixedly connected to the inside of the limit installation block (17); and the outside of the sliding guide rod (20) is sleeved with a limit spring (21).
4. A negative pressure ventilation device for a granary according to claim 3, characterized in that: Both sides of the fan mounting plate (16) are fixedly connected to limit fixing blocks (22), the shape of the limit fixing blocks (22) matches the grooves on both sides of the side mounting plate (5), and the limit fixing blocks (22) are fixedly connected to the side mounting plate (5) by means of mounting screws (23).
5. The negative pressure ventilation device for a granary according to claim 1, characterized in that: There are cavities between the four side mounting plates (5), the one top mounting plate (6) and the granary baffle plate (2).
6. The negative pressure ventilation device for a granary according to claim 1, characterized in that: The four corners of the bottom of the fixed support frame (1) are fixedly connected with support pads (26), and the bottom of the support pad (26) is provided with an anti-slip pad.
7. The negative pressure ventilation device for a granary according to claim 1, characterized in that: A battery is fixedly connected between the four regulating motors (7), and the battery is electrically connected to the four regulating motors (7).
8. The negative pressure ventilation device for a granary according to claim 1, characterized in that: The main exhaust fan (24) is electrically connected to an external power source, and a waterproof layer is provided on the outside of the main exhaust fan (24).