Grain storage warehouse ground cage ventilation controller

Abstract

The utility model relates to the technical field of grain storage, and discloses a grain storage warehouse overground cage ventilation controller which comprises a control box and a connecting cylinder, a semi-annular supporting framework is fixed on the inner side of the connecting cylinder, an installation groove is formed in the control box, a fluted disc is arranged in the installation groove, a rotating rod is arranged at the axis of the fluted disc, and the rotating rod is connected with the connecting cylinder. The bottom end of the rotating rod sequentially penetrates through the mounting groove, the connecting cylinder and the supporting framework and is rotationally connected with the bottom wall of the supporting framework, and an air duct gate plate attached to the inner wall of the supporting framework is fixed to the rotating rod. The controller is arranged at the joint of the ventilation cage b and the branch air duct c, so that a driving motor can be controlled to rotate forwards and backwards through an external switch according to the moisture and temperature conditions of grains in different areas during ventilation of the granary, and a bevel gear is matched with a fluted disc to drive a rotating rod and an air duct flashboard on the rotating rod; and the air brakes on the corresponding branch air ducts are opened or closed, and precise ventilation of partial areas is achieved.

Description

Technical Field

[0001] The utility model relates to the technical field of grain storage, in particular to a cage ventilation controller for a grain storage warehouse. Background Art

[0002] A grain storage silo is a building or facility used to store grain, cereals, or other agricultural products. Its primary function is to protect the grain from moisture, pests, and other environmental factors. An effective grain storage silo should have good ventilation and waterproofing systems to prevent moisture and mold.

[0003] At present, the ventilation cages of grain storage warehouses are of the form that cannot adjust the switch status of individual wind gates. Once the entire warehouse is ventilated, such as the most commonly used centrifugal fan ventilation or internal circulation temperature control ventilation, ventilation is inevitable regardless of whether the temperature, humidity, and pest situation of the grain piles in each part require ventilation. In particular, the moisture and temperature of the grain are already very low, and the grain piles in the parts that do not require ventilation at all will be over-ventilated, and even cause harmful ventilation, which often causes a large loss of moisture in the grain in that part, and also disperses the wind pressure of the grain piles in the parts that need ventilation, prolonging the overall ventilation time, reducing ventilation efficiency, and even threatening the safety of grain storage.

[0004] Therefore, we propose a cage ventilation controller for grain storage warehouses to solve the above-mentioned problems. Utility Model Content

[0005] (1) Technical problems solved

[0006] In view of the deficiencies of the prior art in the above-mentioned background technology, the purpose of the present invention is to provide a cage ventilation controller for a grain storage warehouse to solve the problems raised in the above-mentioned background technology.

[0007] (2) Technical solution

[0008] In order to achieve the above objectives, the present invention is implemented through the following technical solutions:

[0009] A cage ventilation controller for a grain storage warehouse comprises a control box and a connecting tube, wherein the connecting tube is arranged at the connection between the ventilation cage b and the branch air duct c, the control box is located above the connecting tube, a semi-circular support frame is fixed to the inner side of the connecting tube, a mounting groove is opened in the control box, a gear disc is arranged in the mounting groove, a rotating rod is arranged at the axis of the gear disc, the bottom end of the rotating rod passes through the mounting groove, the connecting tube and the support frame in sequence and is rotatably connected to the bottom wall of the support frame, a duct damper that fits the inner wall of the support frame is fixed on the rotating rod, a drive motor is provided in the mounting groove, and the rotating shaft of the drive motor is meshed with the gear disc through a bevel gear.

[0010] Furthermore, a first positioning anchor is provided on the side wall of the support frame, and a second positioning anchor is provided on the bottom of the support frame. Both the first positioning anchor and the second positioning anchor protrude from the support frame and fit into the side wall of the air duct damper.

[0011] Furthermore, the driving motor is an explosion-proof servo motor or an explosion-proof stepping motor.

[0012] Furthermore, both ends of the connecting tube are respectively provided with convex edges, and the convex edges are overlapped on the ends of the ventilation cage d and the branch air duct c.

[0013] (3) Beneficial effects

[0014] Compared with the prior art, the beneficial effects of the present invention are:

[0015] By installing a controller at the connection between ventilation cage B and branch air duct C, the drive motor's forward and reverse rotation can be controlled by an external switch during grain storage ventilation, depending on the moisture and temperature of the grain in different areas. The bevel gear and toothed disc work together to drive the rotating rod and the air duct damper on it, opening or closing the dampers on the corresponding branch air ducts, achieving precise ventilation in certain areas. While performing operations such as cooling and dehumidifying ventilation in the grain pile, drying ventilation in the warehouse, and conditioning ventilation, this system prevents moisture loss from excessive ventilation in grain piles that are in a safe state. This also reduces electricity consumption for grain storage ventilation, saves ventilation time, and improves ventilation efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 This is a schematic diagram of the external structure of the utility model of the grain storage warehouse floor cage ventilation controller;

[0017] Figure 2 This is a schematic diagram of the internal cross-sectional structure of the utility model of the grain storage warehouse floor cage ventilation controller;

[0018] Figure 3 This is a schematic diagram of the installation position structure of the ground cage ventilation controller of the grain storage warehouse of the present invention.

[0019] In the figure: 1. control box, 2. connecting tube, 3. supporting frame, 4. mounting groove, 5. gear plate, 6. rotating rod, 7. air duct damper, 8. driving motor, 9. bevel gear, 10. first positioning anchor, 11. second positioning anchor, 12. convex edge. DETAILED DESCRIPTION

[0020] The technical solutions in the embodiments of the present invention will be described clearly and completely below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all of the embodiments. It should be noted that the words "front", "back", "left", "right", "up" and "down" used in the following description refer to the directions in the drawings, and the words "bottom surface" and "top surface", "inside" and "outside" refer to the directions toward or away from the geometric center of a specific component, respectively. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative work are within the scope of protection of the present invention.

[0021] See also Figure 1-3 As shown, the existing ventilation system is mostly composed of a fan a, a main air duct b, a plurality of branch air ducts c connected to the main air duct b, and a ventilation cage d connected to the branch air duct c. The utility model provides a cage ventilation controller for a grain storage room, comprising a control box 1 and a connecting tube 2. The connecting tube 2 is arranged at the connection between the ventilation cage b and the branch air duct c. The control box 1 is located above the connecting tube 2. The connecting tube 2 has the same shape as the ventilation cage b and is coaxially arranged. A semi-annular support frame 3 is fixed to the inner side of the connecting tube 2. A mounting groove 4 is opened in the control box 1. A gear disk 5 is arranged in the mounting groove 4. A rotating rod 6 is arranged at the axis of the gear disk 5. The bottom end of the rotating rod 6 passes through the mounting groove 4, the connecting tube 2 and the support frame 3 in sequence and is rotatably connected to the bottom wall of the support frame 3. A duct damper 7 that fits the inner wall of the support frame 3 is fixed on the rotating rod 6. The mounting groove 4 is provided with a drive motor 8. The rotating shaft of the drive motor 8 is engaged with the gear disk 5 through a bevel gear 9. The drive motor 8 is a kind of explosion-proof servo motor or explosion-proof stepping motor.

[0022] During operation, the motor is controlled by an external control switch according to the temperature and humidity of grain in different areas. For grain in high temperature and high humidity areas, the drive motor 8 is controlled to rotate forward. When the drive motor 8 rotates, the bevel gear 9 engages with the toothed disc 5 to drive the rotating rod 6 and the air duct damper 7 to rotate forward. At this time, the air duct damper 7 is perpendicular to the supporting frame 3 at 90°, that is, the air damper is in the open state to ventilate the corresponding area. Otherwise, it can be closed to achieve precise ventilation of some areas.

[0023] As an optimal technical solution of the present invention: the connecting tube 2 and the control box 1 are both designed by welding with 1.5mm thick steel plates to ensure the load-bearing, anti-collision and pressure resistance of the controller. The control box 1 and the connecting tube 2 can be connected by bolts, which not only protects the motor and gear disc in the control box 1 during use, but also facilitates the maintenance of the motor and gear disc after the grain is taken out of the warehouse.

[0024] As an optimal technical solution of the present invention: a first positioning anchor 10 is provided on the side wall of the supporting frame 3, and a second positioning anchor 11 is provided on the bottom of the supporting frame 3. The first positioning anchor 10 and the second positioning anchor 11 both protrude from the supporting frame 3 and fit with the side wall of the air duct damper 7. The first positioning anchor 10 and the second positioning anchor 11 respectively limit the air duct damper 7 when the wind gate is closed or opened, thereby ensuring that the opening and closing angles of the air duct damper 7 are in place and accurate.

[0025] As an optimal technical solution of the present invention: a convex edge 12 is respectively provided at both ends of the connecting tube 2, and the convex edge 12 is overlapped on the end of the ventilation cage d and the branch air duct c. The setting of the convex edge 12 enables the connecting tube 2 and the ends of the ventilation cage d and the branch air duct c to form a stepped structure, which is convenient for docking and positioning during installation.

[0026] The application method of the utility model comprises the following steps:

[0027] 1. When cooling, precipitation, drying in warehouse or conditioning and ventilation operations are carried out:

[0028] (1) First, determine the air ducts that need to be ventilated based on the grain distribution characteristics of each part of the warehouse and formulate a ventilation plan. (2) Start the drive motor 8 on the corresponding air duct, open the air duct gate 7, and close the air duct gate that does not need ventilation. (3) Connect the fan and the vents where the air duct that needs to be ventilated is located through the wind belt. (4) Open the warehouse windows and start the fan to perform positive pressure or negative pressure ventilation according to the ventilation plan. (5) Carry out grain inspection during ventilation according to the ventilation plan, and adjust the switch status of the ventilation cage gate at any time according to changes in grain conditions. (6) After ventilation is completed, maintain the switch status of the ventilation control gates of each air duct as needed. In the absence of specific settings, all air duct gates 7 remain in the open ventilation state.

[0029] 2. When performing circulation ventilation in the warehouse:

[0030] (1) According to the grain distribution characteristics of each part of the warehouse, determine the air ducts that do not need ventilation and formulate a ventilation plan. (2) Start the drive motor 8 on the corresponding air duct, open the air duct gate 7, and close the air duct gate that does not need ventilation. (3) Close all warehouse doors and windows, start the internal circulation fan to carry out internal circulation ventilation operations. (4) Carry out grain inspections during ventilation according to the ventilation plan, and adjust the switch status of the ventilation cage gate at any time according to changes in grain conditions. (5) After ventilation is completed, maintain the switch status of the ventilation control gates of each air duct as needed. In the absence of specific settings, all air duct gates 7 remain in the open ventilation state.

[0031] For ordinary technicians in this field, the specific meanings of the above terms in this utility model can be understood according to specific circumstances; for technicians in this field, they can still modify the technical solutions recorded in the aforementioned embodiments, or replace some of the technical features therein with equivalents. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principles of this utility model should be included in the scope of protection of this utility model.

Claims

1. A cage ventilation controller for a grain storage warehouse, characterized by: The invention comprises a control box (1) and a connecting tube (2), wherein the connecting tube (2) is arranged at the connection between the ventilation cage b and the branch air duct c, the control box (1) is located above the connecting tube (2), a semi-circular support frame (3) is fixed on the inner side of the connecting tube (2), a mounting groove (4) is provided in the control box (1), a toothed disc (5) is provided in the mounting groove (4), a rotating rod (6) is provided at the axis of the toothed disc (5), the bottom end of the rotating rod (6) passes through the mounting groove (4), the connecting tube (2) and the support frame (3) in sequence and is rotatably connected to the bottom wall of the support frame (3), an air duct damper (7) that is in contact with the inner wall of the support frame (3) is fixed on the rotating rod (6), the mounting groove (4) is provided with a driving motor (8), and the rotating shaft of the driving motor (8) is meshed with the toothed disc (5) through a bevel gear (9).

2. A grain storage warehouse floor cage ventilation controller according to claim 1, characterized in that: The side wall of the support frame (3) is provided with a first positioning anchor (10), and the bottom of the support frame (3) is provided with a second positioning anchor (11), and both the first positioning anchor (10) and the second positioning anchor (11) protrude from the support frame (3) and fit with the side wall of the air duct damper (7).

3. A grain storage warehouse floor cage ventilation controller according to claim 1, characterized in that: The driving motor (8) is an explosion-proof servo motor or an explosion-proof stepping motor.

4. A grain storage warehouse floor cage ventilation controller according to claim 1, characterized in that: Both ends of the connecting tube (2) are respectively provided with convex edges (12), and the convex edges (12) are overlapped on the ends of the ventilation cage d and the branch air duct c.

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