Blowing ventilation adjusting mechanism for granary

Abstract

The utility model relates to a granary blowing ventilation adjusting mechanism which comprises a fan, an air inlet and an air outlet, the air inlet and the air outlet are arranged on the wall of a granary, the air inlet is connected with a blowing pipe of the fan, and the inner side wall of the granary is movably hinged with an extending tuyere. According to the utility model, through the arrangement of the extending tuyere which can cover the air inlet in a turnover manner, when the extending tuyere is upwards lifted to be separated from the air inlet, the grain pile at the periphery of the granary is ventilated and cooled through the air inlet, and when the extending tuyere is downwards turned to cover the air inlet, a ventilation path is prolonged through the extending tuyere, so that the air outlet position is closer to the grain pile at the center of the granary; therefore, all-directional and dead-corner-free ventilation coverage is achieved, the ventilation effect of the granary is improved, and the grain quality is guaranteed.

Description

Technical Field

[0001] The utility model relates to the technical field of grain silo ventilation, and more specifically refers to a grain silo air blowing and ventilation regulating mechanism. Background Art

[0002] When grain is piled up in a granary after harvest, the gas circulation in the granary is not smooth, and heat is easily accumulated due to the respiration of the grain, which affects the quality and safety of the grain storage. Therefore, the granary needs to be ventilated regularly.

[0003] Granary ventilation usually involves opening air inlets and outlets on the walls of the granary, and using fans to press the dry and cold air from the outside into or out of the granary to achieve ventilation and cooling. In traditional ventilation technology, the air inlets and outlets are generally set high, and most granaries have a large area, resulting in great differences in ventilation and cooling efficiency for grain piles at different locations in the granary. Usually, grain piles close to the air inlets and outlets on the granary wall can get better ventilation, but grain piles far away from the air inlets and outlets or located in the center of the granary do not have enough wind power from the fans, and the grain piles at this location cannot be effectively ventilated and cooled. However, it is not suitable to blindly increase the power of the fan for the grain piles in the granary. Therefore, high-power blowing will cause the grain piles close to the air inlets and outlets to be blown up, which will bring safety hazards such as dust explosions. Utility Model Content

[0004] The utility model aims to provide a granary air blowing and ventilation regulating mechanism to solve the problem of uneven ventilation and cooling of grain piles in existing granaries.

[0005] The utility model adopts the following technical solutions:

[0006] A granary air blowing and ventilation adjustment mechanism comprises a fan and an air inlet and an air outlet arranged on the wall of the granary, the air inlet is connected to the air blowing pipe of the fan, and an extended air nozzle is movably hinged on the inner wall of the granary, and the extended air nozzle can be flipped to cover the air inlet. Preferably, the extended air nozzle flips downward to cover the air inlet or flips upward to be detached from the air inlet.

[0007] Furthermore, it also includes an articulated frame fixedly installed on the inner wall of the granary and a flip shaft inserted in the articulated frame. One side of the circumferential outer wall of the flip shaft is fixedly connected to the extended air nozzle, and one end of the two ends of the flip shaft is connected to the output shaft of a stepper motor. The stepper motor is fixedly installed on the inner wall of the granary.

[0008] Furthermore, the extended air nozzle is a trumpet-shaped air nozzle structure, and the two ends of the extended air nozzle are respectively a wide opening and a narrow opening, the wide opening is covered on the air inlet, and the narrow opening extends toward the center of the granary.

[0009] Preferably, a second electric shutter for changing wind direction is provided on the narrow opening.

[0010] Preferably, a first electric shutter for changing wind direction is provided on the air inlet.

[0011] Furthermore, the extended air nozzle is made of iron or the wide mouth of the extended air nozzle is provided with an iron edging, and an electromagnet for adsorbing and fixing the extended air nozzle or the iron edging is embedded in the inner wall of the granary.

[0012] Furthermore, a sensor for sensing the height of the grain pile is provided in the granary.

[0013] From the above description of the structure of the utility model, it can be seen that compared with the prior art, the utility model has the following advantages:

[0014] 1. The utility model provides an extended air nozzle with a flip cover on the air inlet. When the extended air nozzle is lifted up and separated from the air inlet, the grain pile outside the granary is ventilated and cooled through the air inlet. When the extended air nozzle is flipped downward and covered on the air inlet, the ventilation path is extended by the extended air nozzle, so that the air outlet position is closer to the grain pile in the center of the granary, thereby ventilating and cooling the center of the grain pile, thereby achieving all-round ventilation coverage without dead ends, improving the ventilation effect of the granary, and ensuring the quality of grain.

[0015] 2. The extended air nozzle of the utility model adopts a trumpet-shaped air nozzle structure, thereby converging the air outlet, further strengthening the wind force of the fan, and allowing the wind to blow farther.

[0016] 3. The utility model arranges an electromagnet to adsorb and fix the extended air nozzle, thereby enhancing the structural stability of the extended air nozzle and the granary wall and preventing the extended air nozzle from being blown up and shaken by the fan.

[0017] 4. The utility model arranges the first electric shutter and the second electric shutter on the air inlet and the extended air nozzle respectively, so as to further expand the ventilation range and ventilation flexibility, making the ventilation of the granary more comprehensive and flexible. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 The utility model is a schematic diagram of the granary structure.

[0019] Figure 2 It is a schematic diagram of the structure of the utility model.

[0020] Figure 3 for Figure 2 A is an enlarged schematic diagram.

[0021] Figure 4 It is a structural schematic diagram of the utility model in which the extended air nozzle is in an upwardly lifted state.

[0022] Figure 5 This is a top view of the extended air nozzle of the utility model.

[0023] Among them, the numbers in the figure are: fan 10, air outlet 11, air inlet 21, air outlet 22, extended air nozzle 30, hinged frame 31, flip axis 32, stepper motor 33, electromagnet 40, first electric blinds 51, second electric blinds 52, sensor 60. DETAILED DESCRIPTION

[0024] The specific implementation of the embodiment of the utility model is described below with reference to the accompanying drawings.

[0025] Reference Figure 1 and Figure 2 A granary air blowing and ventilation adjustment mechanism includes a fan 10, an air inlet 21 and an air outlet 22 arranged on the wall of the granary, and an extended air nozzle 30 with a flip cover arranged on the air inlet 21. There are a plurality of air inlets 21 and air outlets 22, and the air inlets 21 and air outlets 22 are staggered on both sides of the granary wall. The fan 10 can be a plurality of units, corresponding to the air inlets 21 one by one, or a large fan 10, and the air outlet pipes 11 of the fan 10 are respectively connected to the air inlets 21. In this embodiment, there are a plurality of fans 10, which are mounted on the outer wall of the granary, and the air outlet pipes 11 of the fan 10 are connected to the air inlet 21.

[0026] Reference Figure 2 and Figure 5 The extended air nozzle 30 can be movably hinged on the inner wall of the granary. The number of the extended air nozzles 30 is consistent with the air inlet 21, and they are arranged one by one, so that the extended air nozzle 30 can be flipped down to cover the air inlet 21, or flipped upward to be separated from the air inlet 21. Specifically, the extended air nozzle 30 also includes a hinge frame 31 fixedly installed on the inner wall of the granary, and a flip shaft 32 inserted in the hinge frame 31. One side of the circumferential outer wall of the flip shaft 32 is fixedly connected to the extended air nozzle 30, and one end of the two ends of the flip shaft 32 is connected to the output shaft of a stepping motor 33, and the stepping motor 33 is fixedly installed on the inner wall of the granary. The utility model drives the flip shaft 32 to rotate 90° clockwise through the stepping motor 33, so that the extended air nozzle 30 is covered on the air inlet 21, or drives the flip shaft 32 to rotate 90° counterclockwise through the stepping motor 33, so that the extended air nozzle 30 is lifted up to be separated from the air inlet 21.

[0027] Reference Figure 2 and Figure 4 In addition to using the extended air nozzle 30 to lengthen the travel of the air inlet 21, the utility model can be configured as a trumpet-shaped air nozzle structure in order to further strengthen the wind force so that it blows farther. The two ends of the extended air nozzle 30 are respectively a wide opening and a narrow opening, the wide opening covers the air inlet 21, and the narrow opening extends toward the center of the granary.

[0028] Reference Figure 2 and Figure 3In order to enhance the structural stability of the extension nozzle 30 and the granary wall, and to prevent the extension nozzle 30 from being blown up and shaking by the fan 10, the extension nozzle 30 of the utility model can be made entirely of iron, or an iron edging can be provided on the wide mouth of the extension nozzle 30, and an electromagnet 40 for adsorbing and fixing the extension nozzle 30 or the iron edging is embedded in the inner wall of the granary. When the extension nozzle 30 is covered on the air inlet 21, the electromagnet 40 is energized to adsorb and fix the extension nozzle 30. When the extension nozzle 30 needs to be lifted up and separated from the air inlet 21, the electromagnet 40 is powered off and unlocked, so that the extension nozzle 30 can be easily separated from the air inlet 21.

[0029] Reference Figure 2 and Figure 3 In order to make the ventilation in the granary more flexible, the utility model is provided with a first electric shutter 51 for changing the wind direction on the air inlet 21, and a second electric shutter 52 for changing the wind direction is provided on the narrow opening of the extended air nozzle 30. The first electric shutter 51 and the second electric shutter 52 are preferably double-layer electric shutters that can swing up and down and left and right. The specific structure and circuit connection are basically the same as the electric shutter structure of the air inlet 21 of the air conditioner on the market, and will not be repeated here.

[0030] Reference Figure 1 The granary is also provided with a sensor 60 for sensing the height of the grain pile. The sensor 60 is a conventional distance sensor 60 for monitoring the height of the grain pile on the market. There are several distance sensors 60, which are arranged at intervals on the inner wall of the granary or the inner wall of the granary roof. The sensor 60 senses the height of the grain pile, which not only facilitates daily management, but also can be used as a ventilation parameter to coordinate the control of the air outlet direction or wind speed adjustment of the fan 10.

[0031] Reference Figures 1 to 5 The ventilation and cooling of the grain silo of the utility model is generally divided into two steps. The first step is to ventilate and cool the grain piles outside the grain silo. During this ventilation and cooling step, the extended air nozzle 30 needs to be lifted upward to separate it from the air inlet 21. The air inlet 21 and the first electric shutter 51 are used to ventilate and cool the peripheral grain piles close to the wall of the grain silo. The second step is to ventilate and cool the central grain pile of the grain silo. During this ventilation and cooling step, the extended air nozzle 30 needs to be flipped downward to cover the air inlet 21, and the extended air nozzle 30 is fixed by adsorption by the electromagnet 40. The air outlet duct is extended by the extended air nozzle 30, so that the air outlet position is closer to the central grain pile of the grain silo. At the same time, the trumpet-shaped air nozzle structure is used to converge the air inlet 21, thereby increasing the wind force of the fan 10 and making the wind blow farther. Finally, the second electric shutter 52 is used to change the wind direction, and the central grain pile of the grain silo is ventilated and cooled in a comprehensive and flexible manner.

[0032] The above is only a specific implementation method of the utility model, but the design concept of the utility model is not limited to this. Any non-substantial changes to the utility model using this concept shall be deemed as an infringement of the protection scope of the utility model.

Claims

1. A grain silo air blowing and ventilation regulating mechanism, comprising a blower and an air inlet and an air outlet arranged on the wall of the grain silo, wherein the air inlet is connected to the blow pipe of the blower, and is characterized in that: An extended air nozzle is movably hinged on the inner wall of the granary, and the extended air nozzle is flippably arranged to cover the air inlet.

2. The grain silo air blowing and ventilation regulating mechanism according to claim 1, characterized in that: It also includes an articulated frame fixedly installed on the inner wall of the granary and a flip shaft inserted in the articulated frame. One side of the circumferential outer wall of the flip shaft is fixedly connected to the extended air nozzle, and one end of the two ends of the flip shaft is connected to the output shaft of a stepper motor. The stepper motor is fixedly installed on the inner wall of the granary.

3. The grain silo air blowing and ventilation regulating mechanism according to claim 1, characterized in that: The extended air nozzle is a trumpet-shaped air nozzle structure, and the two ends of the extended air nozzle are respectively a wide opening and a narrow opening, the wide opening is covered on the air inlet, and the narrow opening extends toward the center of the granary.

4. The grain silo air blowing and ventilation regulating mechanism according to claim 3, characterized in that: The narrow opening is provided with a second electric shutter for changing the wind direction.

5. The grain silo air blowing and ventilation regulating mechanism according to claim 1, characterized in that: The air inlet is provided with a first electric shutter for changing the wind direction.

6. A grain silo air blowing and ventilation regulating mechanism according to claim 1 or 3, characterized in that: The extended air nozzle is made of iron or the wide mouth of the extended air nozzle is provided with an iron edging, and an electromagnet for adsorbing and fixing the extended air nozzle or the iron edging is embedded in the inner wall of the granary.

7. The grain silo air blowing and ventilation regulating mechanism according to claim 1, characterized in that: A sensor for sensing the height of the grain pile is arranged in the granary.

Images