Granary door safety system
By setting up a level sensor and an air index recorder in the granary, combining a distance sensor and an electric push rod, intelligent control of the inspection door and grain barrier door is achieved, the problem of granary safety accidents is solved and the safety of the grain entry and exit process is ensured.
Patent Information
- Application Number
- CN202422722602.X
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-11-08
- Publication Date
- 2025-08-29
- Estimated Expiration
- 2034-11-08
AI Technical Summary
The existing granary door mechanical lock control has problems such as falling from high altitude, poisoning, suffocation or burying food.
The material level sensor and air index recorder are used to control the electronic lock of the inspection door, the distance sensor and electric push rod control the opening of the grain door, and lock or release the control authority by measuring the grain surface height and air index to ensure safety.
Effectively prevent detecting personnel from falling from high altitude, poisoning, suffocation, and burying people with grain, and ensuring the safety of the process of entering and leaving the warehouse.
Smart Images
Figure CN223283718U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of grain storage, in particular to a grain silo door safety system. Background Art
[0002] Currently, granary inspection doors and grain retaining doors rely primarily on mechanical locks, which can lead to people uninformed about the warehouse's conditions accidentally opening the locks and entering. During grain loading and unloading operations, or during fumigation or nitrogen conditioning, uninformed individuals entering the granary through the inspection doors could result in falls, poisoning, suffocation, and other safety hazards. Furthermore, during grain loading and unloading operations, individuals may enter the granary through the upper grain retaining plate to monitor the grain level. If the grain level is high and the grain is flowing during loading and unloading, rash entry could result in a person being buried in the grain. Therefore, safety controls on existing granary doors are necessary. Utility Model Content
[0003] In order to overcome the above-mentioned deficiencies in the existing mechanical lock control of granary doors, the technical problem to be solved by the present invention is to provide a granary door safety system that can ensure the safety of entering the granary.
[0004] The technical solution adopted by the utility model to solve its technical problems is:
[0005] A granary door safety system includes an inspection door arranged at the top of the side of the granary, an inspection door controller, a material level sensor and an air index recorder. The material level sensor is arranged below the inspection door, and the electronic lock and air index recorder of the inspection door are electrically connected to the inspection door controller respectively. The inspection door controller is configured to lock or release the control authority of the electronic lock according to the grain surface height measured by the material level sensor and the air index in the granary recorded by the air index recorder.
[0006] Furthermore, the air index recorder is an air detector arranged in the granary for detecting the phosphine and oxygen content in the granary.
[0007] Furthermore, the air index recorder is a control panel provided on the inspection door for manually inputting air indexes.
[0008] Furthermore, it also includes a grain blocking door, a distance sensor, an electric push rod and a grain blocking door controller. The distance sensor is arranged on the inner wall of the grain silo above the grain blocking door, and the base of the electric push rod is arranged on the inner wall of the grain silo on both sides of the grain blocking door. The telescopic end of the electric push rod is connected to the grain blocking door, and the grain blocking door is driven to open and close by the telescopic movement of the electric push rod. The distance sensor and the electric push rod are electrically connected to the grain blocking door controller respectively, and the grain blocking door controller is configured to lock or release the control authority of the electric push rod according to the grain surface height near the grain blocking door measured by the distance sensor.
[0009] Furthermore, the grain blocking door includes a plurality of door panels arranged along the height direction of the granary, and the electric push rod is arranged on the two door panels located above.
[0010] Furthermore, the base of the electric push rod is fixed on the inner wall of the granary, the electric push rod is arranged in the horizontal direction, and a slide groove parallel to the electric push rod is provided on the door panel, and the telescopic end of the electric push rod is restricted to slide in the slide groove.
[0011] Furthermore, the granary includes a plurality of grain-blocking doors, and at least two distance sensors are spaced apart above each grain-blocking door.
[0012] Furthermore, a control switch is provided on the outer wall of the grain bin on the side of the grain blocking door. The control switch is electrically connected to the grain blocking door controller and is configured to control the opening and closing of the grain blocking door when the grain blocking door controller releases the control authority of the electric push rod.
[0013] The beneficial effects of the utility model are:
[0014] 1. By installing a material level sensor under the inspection door to measure the height between the inspection door and the grain surface, and setting an air index recorder to record the air index in the warehouse, and using this to lock or release the control authority of the inspection door, it can prevent accidents such as falling from a height, poisoning or suffocation caused by inspectors rashly entering the warehouse;
[0015] 2. A distance sensor is installed on the inner wall of the grain silo above the grain blocking door to measure the grain surface height near the grain blocking door, and use this to lock or release the control authority of the electric push rod. When the grain surface is higher than the set height, the external control switch cannot open the grain blocking door, thereby preventing workers from rashly entering the grain silo and ensuring the safety of the grain in and out of the silo. BRIEF DESCRIPTION OF THE DRAWINGS
[0016] Figure 1 This is the main view of the interior of the granary of the utility model;
[0017] Figure 2 This is a top view of the interior of the granary of the utility model;
[0018] Figure 3 yes Figure 2 Magnified view of section A.
[0019] The markings in the figure are: 1-grain bin, 2-grain blocking door, 3-distance sensor, 4-electric push rod, 5-control switch, 6-air detector, 7-inspection door, 8-level sensor, 21-door panel, 22-chute. DETAILED DESCRIPTION
[0020] The present invention will be further described below with reference to the accompanying drawings.
[0021] It should be noted that if directional terms are used in this utility model, such as "up," "down," "left," "right," "front," and "back," these are intended to facilitate the description of the relative positions of components and are not intended to specify the absolute positions of the related components or the positional relationships between them. They are only used to explain the relative positional relationships and movement of the components in a specific posture. If the specific posture changes, the directional indication will also change accordingly. If terms related to quantity are used in this utility model, such as "multiple," "a plurality," or "several," these specifically refer to two or more.
[0022] like Figure 1 、 Figure 2 As shown, the present invention provides a granary door safety system, including an inspection door 7 arranged at the top side of the granary 1, and an inspection door controller, a material level sensor 8 and an air index recorder. The material level sensor 8 is arranged below the inspection door 7, and the electronic lock and air index recorder of the inspection door 7 are electrically connected to the inspection door controller respectively. The inspection door controller is configured to lock or release the control authority of the electronic lock according to the grain surface height measured by the material level sensor 8 and the air index in the granary recorded by the air index recorder.
[0023] During periods when grain is not entering or exiting the warehouse, the level sensor 8 measures the height of the grain surface from the bottom of the inspection door 7 in real time. If the height exceeds a set threshold, the electronic lock of the inspection door 7 is locked, preventing it from opening. Typically, the control permission is released when the height is less than 0.5 meters, and locked when it is greater than or equal to 0.5 meters, thereby preventing personnel from falling from height if they enter rashly. During periods when grain is entering or exiting the warehouse, the distance sensor 3 detects changes in the grain surface. The inspection door control system determines that this is a grain entry or exit state based on the height change. At this point, the electronic lock of the inspection door 7 is locked, preventing it from opening, thus preventing the possibility of people being buried in the grain. Furthermore, during periods when grain is being fumigated or nitrogen-conditioned, the phosphine content in the warehouse increases or the oxygen content decreases. Entering the warehouse at this time can easily lead to poisoning or suffocation. Therefore, this application also includes an air index recorder to measure or record the air index in the warehouse. When the air index is unsuitable for human entry, the inspection door 7 is locked; otherwise, control of the inspection door 7 is released.
[0024] This application provides two solutions for air index recorders. The first solution is to use an air detector 6 installed inside the granary 1 to detect the phosphine and oxygen content in the granary. The air index in the granary is collected directly through the air detector 6 in real time and transmitted to the inspection door controller. This is simple and convenient, but the cost is relatively high. The second solution is to use a control panel installed on the inspection door 7 for manually inputting air indexes. This method first uses some simple handheld measuring instruments to perform sampling tests at the air intake point outside the granary, and then inputs the measured air index into the inspection door controller through the control panel. This method is less expensive, but it only adds an air detection procedure.
[0025] For the safety control of the grain blocking door 2, the solution adopted by the present invention is, including the grain blocking door 2, the distance sensor 3, the electric push rod 4 and the grain blocking door controller, the distance sensor 3 is arranged on the inner wall of the grain silo above the grain blocking door 2, the base of the electric push rod 4 is arranged on the inner wall of the grain silo on both sides of the grain blocking door 2, the telescopic end of the electric push rod 4 is connected to the grain blocking door 2, and the grain blocking door 2 is driven to open and close by the telescopic movement of the electric push rod 4, the distance sensor 3 and the electric push rod 4 are respectively electrically connected to the grain blocking door controller, and the grain blocking door controller is configured to lock or release the control authority of the electric push rod 4 according to the grain surface height near the grain blocking door 2 measured by the distance sensor 3.
[0026] Among them, the granary 1 is generally equipped with multiple grain-blocking doors 2. Therefore, in order to achieve precise control, at least two distance sensors 3 are spaced above each grain-blocking door 2. During the operation of entering and leaving the warehouse, due to the fast flow of grain, multiple distance sensors 3 can more accurately detect the height of the grain surface around the grain-blocking door 2. In order to facilitate the tiered entry into the warehouse, the current grain-blocking door 2 will be equipped with multiple door panels 21 along the height direction of the granary 1, usually four, such as Figure 1 As shown, the height of the two lower door panels 21 is about 1.5m. If the two lower door panels 21 can be opened, it means that the grain surface height is low. Therefore, the electric push rod 4 only needs to be set on the two upper door panels 21. Figure 3 As shown, the base of the electric push rod 4 can be fixed to the inner wall of the grain silo, the electric push rod 4 is arranged in the horizontal direction, and the door panel 21 is provided with a slide groove 22 parallel to the electric push rod 4. The telescopic end of the electric push rod 4 is restricted to slide in the slide groove 22, so that the grain blocking door 2 can be opened or closed by the extension and contraction of the electric push rod 4. In addition, in order to control the operation of the electric push rod 4, a control switch 5 can be provided on the outer wall of the grain silo on the side of the grain blocking door 2. The control switch 5 is electrically connected to the grain blocking door controller and is configured to control the opening and closing of the grain blocking door 2 when the grain blocking door controller releases the control authority of the electric push rod 4.
[0027] The specific control process of the present invention is: during the grain entering the warehouse, as the grain surface height in the warehouse increases, the door panels 21 of the grain blocking door 2 are gradually closed from bottom to top by manual means, and when the grain surface is higher than the two upper door panels 21, the grain blocking door controller gradually locks the electric push rod 4, and at this time the grain blocking door 2 cannot be opened by the control switch 5; during the grain leaving the warehouse, the distance sensor 3 monitors the grain surface height in real time. When the grain surface height is greater than the set height, such as 1.5 meters, the electric push rod 4 is still in a locked state, and the two upper door panels 21 cannot be opened. In this way, people cannot enter the grain warehouse before the grain surface reaches below the safety line, preventing people from entering the grain warehouse when the grain surface is too high and causing safety accidents of people being buried in grain. When it is detected that the grain surface is lower than 1.5 meters, the grain blocking door controller releases the control of the electric push rod 4, and the upper door panel 21 can be opened by the electric push rod 4.
[0028] To sum up, the utility model sets a level sensor 8 and a distance sensor 3 in the grain silo 1 to measure the grain surface height, and sets an air index recorder to record the air index in the silo, and thereby limits the opening conditions of the inspection door and the grain blocking door, which can ensure the safety of personnel during grain inspection and in-and-out operations, and has good practicality and application value.
Claims
1. A granary door safety system, comprising an inspection door (7) arranged on the top side of a granary (1), characterized in that: The invention also includes an inspection door controller, a material level sensor (8) and an air index recorder. The material level sensor (8) is arranged below the inspection door (7). The electronic lock and the air index recorder of the inspection door (7) are electrically connected to the inspection door controller respectively. The inspection door controller is configured to lock or release the control authority of the electronic lock according to the grain surface height measured by the material level sensor (8) and the air index in the bin recorded by the air index recorder.
2. A granary door safety system according to claim 1, characterized in that: The air index recorder is an air detector (6) arranged in the granary (1) and used for detecting the phosphine and oxygen contents in the granary.
3. The granary door safety system according to claim 1, characterized in that: The air index recorder is a control panel arranged on the inspection door (7) for manually inputting air indexes.
4. The granary door safety system according to claim 1, characterized in that: The invention also includes a grain-blocking door (2), a distance sensor (3), an electric push rod (4) and a grain-blocking door controller, wherein the distance sensor (3) is arranged on the inner wall of the grain bin above the grain-blocking door (2), the base of the electric push rod (4) is arranged on the inner wall of the grain bin on both sides of the grain-blocking door (2), the telescopic end of the electric push rod (4) is connected to the grain-blocking door (2), and the grain-blocking door (2) is driven to open and close by the telescopic movement of the electric push rod (4), the distance sensor (3) and the electric push rod (4) are respectively electrically connected to the grain-blocking door controller, and the grain-blocking door controller is configured to lock or release the control authority of the electric push rod (4) according to the grain surface height near the grain-blocking door (2) measured by the distance sensor (3).
5. A granary door safety system according to claim 4, characterized in that: The grain blocking door (2) comprises a plurality of door panels (21) arranged along the height direction of the granary (1), and the electric push rod (4) is arranged on the two door panels (21) located above.
6. A granary door safety system according to claim 5, characterized in that: The base of the electric push rod (4) is fixed on the inner wall of the granary, the electric push rod (4) is arranged in the horizontal direction, and a slide groove (22) parallel to the electric push rod (4) is provided on the door panel (21), and the telescopic end of the electric push rod (4) is restricted to slide in the slide groove (22).
7. The granary door safety system according to claim 4, characterized in that: The granary (1) comprises a plurality of grain-blocking doors (2), and at least two distance sensors (3) are spaced apart and arranged above each grain-blocking door (2).
8. The granary door safety system according to claim 4, characterized in that: A control switch (5) is provided on the outer wall of the grain bin on the side of the grain blocking door (2). The control switch (5) is electrically connected to the grain blocking door controller and is configured to control the opening and closing of the grain blocking door (2) when the grain blocking door controller releases the control authority of the electric push rod (4).