Optical fiber monitoring device for state of granary anti-extension gate
By designing fiber optic strain sensors and components, the safety and accuracy issues of gate opening and closing monitoring in grain silos have been resolved, enabling stable detection in dusty environments and ensuring uniform grain stacking and silo safety.
Patent Information
- Application Number
- CN202520479572.6
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-03-19
- Publication Date
- 2026-01-13
- Estimated Expiration
- 2035-03-19
AI Technical Summary
The opening and closing degree of mechanical cylinder-operated gates in grain warehouses is difficult to monitor. Conventional electrical equipment poses an explosion risk, affecting the uniformity of grain stacking and the safety of the warehouse. Furthermore, monitoring equipment is not practical in dusty environments.
The design employs fiber optic strain sensors and components, including sliders, pins, and protective covers, to form a fiber optic monitoring device that avoids electrical contact. The fiber optic strain sensors detect the opening and closing status of the gate, while the cleaning sleeve and protective cover prevent oxidation and dust from getting stuck.
It enables stable monitoring of gate status in high-dust environments, avoids equipment oxidation and jamming, ensures the accuracy and smoothness of gate opening and closing detection, and reduces safety hazards.
Smart Images
Figure CN223795977U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of grain storage technology, and in particular to a fiber optic monitoring device for the status of a grain storage anti-separation gate. Background Technology
[0002] Grain storage refers to the storage and management process of grain from harvest to consumption. It includes a series of facilities and equipment, such as warehouses, storage yards (or drying yards), metering, conveying, stacking, cleaning, loading and unloading, ventilation, drying and other facilities, and is equipped with instruments for measurement, sampling, inspection and testing.
[0003] In grain storage, the opening and closing degree of the gate stretched by the mechanical cylinder affects the uniformity of grain stacking. Deviation in opening degree can easily lead to safety hazards such as grain mold and damage to the storage unit. However, when grain is put into the storage unit, dust is severe, and conventional live monitoring equipment has the risk of explosion, resulting in a lack of gate opening degree monitoring and insufficient practicality. Therefore, it is necessary to design a fiber optic monitoring device for the status of the gate of the grain storage unit to address the above problems. Utility Model Content
[0004] The purpose of this invention is to address the shortcomings of existing technologies by proposing a fiber optic monitoring device for the status of grain warehouse anti-separation gates.
[0005] To achieve the above objectives, the present invention adopts the following technical solution:
[0006] A fiber optic monitoring device for the status of a grain storage anti-separation gate includes a cylinder. A connecting frame is fixedly installed at the telescopic end of the cylinder. A slider is slidably installed on the outer wall of the cylinder via a limiting slide rail. A fixing frame is fixedly installed at one end of the slider. A pin is slidably installed on the outer wall of the limiting slide rail via a protective cover. The end of the pin is circular. An arc-shaped slope is provided on the outer wall of the other end of the slider. A connecting plate is fixedly installed on the outer wall of the pin. The upper surface of the connecting plate is connected to the inner wall of the protective cover via a reset mechanism. A movable plate is fixedly installed on the outer wall of the pin. A fixing plate is fixedly installed on the upper surface of the cylinder via a fixing mechanism. A fiber optic strain sensor corresponding to the movable plate is fixedly installed on the bottom wall of the fixing plate. A connecting sleeve is slidably installed on the outer wall of the slider. The outer wall of the limiting slide rail is connected to the connecting sleeve via a connecting mechanism.
[0007] Preferably, the reset mechanism includes a reset spring installed on the outer wall of the pin, and the two ends of the reset spring are elastically connected to the inner wall of the protective cover and the upper surface of the connecting plate, respectively.
[0008] Preferably, the fixing mechanism includes two fixing blocks fixedly installed on the upper end face of the cylinder, and the ends of the two fixing blocks are fixedly connected to the bottom wall of the fixing plate.
[0009] Preferably, the connecting mechanism includes two connecting rods fixedly installed on the outer wall of the limiting slide rail, and the ends of the two connecting rods are fixedly connected to the outer wall of the connecting sleeve.
[0010] Preferably, a bolt is rotatably mounted on the upper end face of the fixed frame, and a threaded hole that mates with the bolt is provided on the outer wall of the connecting frame.
[0011] Preferably, a cleaning sleeve is fixedly installed inside the connecting sleeve, and the cleaning sleeve is made of sponge material.
[0012] The beneficial effects of this utility model are:
[0013] 1. By setting up components such as fiber optic strain sensors, sliders, and pins, the fiber optic strain sensors are not powered and can work stably in high-dust environments. During the extension and retraction of the cylinder, the slider can be moved. The pins can be adjusted up and down according to the movement of the slider, thereby adjusting the distance between the moving plate and the fiber optic strain sensor. Thus, the opening and closing status of the gate can be determined based on the signal strength detected by the fiber optic strain sensor.
[0014] 2. By setting up components such as protective covers, connecting sleeves, and cleaning sleeves, the protective cover can prevent the return spring from oxidizing and rusting, thus ensuring that the pin can move up and down normally. During the movement of the slider, the cleaning sleeve inside the connecting sleeve can clean the dust on the outer wall of the slider, preventing dust from adhering to its outer wall, preventing the slider from getting stuck, and increasing the smoothness of the slider's movement. Attached Figure Description
[0015] Figure 1 This is a schematic diagram of the structure of a fiber optic monitoring device for the status of a grain storage anti-separation gate proposed in this utility model;
[0016] Figure 2 for Figure 1 A schematic diagram of the vertical section structure;
[0017] Figure 3 This is a top view of the fiber optic monitoring device for the status of a grain storage anti-separation gate proposed in this utility model.
[0018] Figure 4 for Figure 2 Enlarged schematic diagram of the structure at point A in the diagram;
[0019] Figure 5 for Figure 2 Enlarged schematic diagram of the structure at point B in the diagram.
[0020] In the diagram: 1. Cylinder, 2. Connecting frame, 3. Limiting slide rail, 4. Slider, 5. Fixing frame, 6. Bolt, 7. Protective cover, 8. Pin, 9. Connecting plate, 10. Return spring, 11. Moving plate, 12. Fixing block, 13. Fixing plate, 14. Fiber optic strain sensor, 15. Connecting rod, 16. Connecting sleeve, 17. Cleaning sleeve. Detailed Implementation
[0021] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present utility model. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments.
[0022] Reference Figure 1-5 A fiber optic monitoring device for the status of a grain storage anti-separation gate includes a cylinder 1. A connecting frame 2 is fixedly installed at the telescopic end of the cylinder 1. A slider 4 is slidably installed on the outer wall of the cylinder 1 via a limiting slide rail 3. A fixing frame 5 is fixedly installed at one end of the slider 4. A bolt 6 is rotatably installed through the upper end face of the fixing frame 5. A threaded hole that mates with the bolt 6 is opened on the outer wall of the connecting frame 2. A pin 8 is slidably installed on the outer wall of the limiting slide rail 3 via a protective cover 7. The end of the pin 8 is round. An arc-shaped slope is provided on the outer wall of the other end of the slider 4. A connecting plate 9 is fixedly installed on the outer wall of the pin 8. The upper end face of the connecting plate 9 is connected to the inner wall of the protective cover 7 via a reset mechanism. The reset mechanism includes a reset spring 10 installed on the outer wall of the pin 8. The two ends of the reset spring 10 are elastically connected to the inner wall of the protective cover 7 and the upper end face of the connecting plate 9, respectively.
[0023] A movable plate 11 is fixedly installed on the outer wall of the pin 8. A fixed plate 13 is fixedly installed on the upper end face of the cylinder 1 through a fixing mechanism. The fixing mechanism includes two fixed blocks 12 fixedly installed on the upper end face of the cylinder 1. The ends of the two fixed blocks 12 are fixedly connected to the bottom wall of the fixed plate 13. A fiber optic strain sensor 14 corresponding to the movable plate 11 is fixedly installed on the bottom wall of the fixed plate 13. A connecting sleeve 16 is slidably installed on the outer wall of the slider 4. The outer wall of the limiting slide rail 3 is connected to the connecting sleeve 16 through a connecting mechanism. The connecting mechanism includes two connecting rods 15 fixedly installed on the outer wall of the limiting slide rail 3. The ends of the two connecting rods 15 are fixedly connected to the outer wall of the connecting sleeve 16. A cleaning sleeve 17 is fixedly installed inside the connecting sleeve 16. The cleaning sleeve 17 is made of sponge material.
[0024] When this utility model is used, the fixed frame 5 can be fixedly installed on the outer wall of the connecting frame 2 by the cooperation of the bolt 6 and the screw hole, thereby realizing the fixed connection between the slider 4 and the telescopic end of the cylinder 1. When the gate is closed, the telescopic end of the cylinder 1 can drive the slider 4 to slide inside the limit slide rail 3 through the cooperation of the connecting frame 2 and the fixed frame 5. The slider 4 slides outward as it moves. At this time, the end of the slider 4 loses the pressure on the pin 8. At this time, the return spring 10 can drive the pin 8 to move downward through the cooperation of the connecting plate 9, thereby causing the pin 8 to drive the moving plate 11 to move downward to release the pressure on the fiber optic strain sensor 14. The value detected by the fiber optic strain sensor 14 decreases, thereby confirming that the gate is in a fully closed state.
[0025] Conversely, when the slider 4 presses against the pin 8, the pin 8 can drive the moving plate 11 to press against the fiber optic strain sensor 14. At this time, the value of the fiber optic strain sensor 14 increases, which can confirm that the gate is in an open or not closed state. Moreover, the protective cover 7 can prevent the return spring 10 from oxidizing and rusting, thus ensuring that the pin 8 can move up and down normally. During the movement of the slider 4, the cleaning sleeve 17 inside the connecting sleeve 16 can clean the dust on the outer wall of the slider 4, preventing dust from adhering to its outer wall and preventing the slider 4 from getting stuck, thus increasing the smoothness of the slider 4's sliding.
[0026] The above description is only a preferred embodiment of the present utility model, but the protection scope of the present utility model is not limited thereto. Any equivalent substitutions or changes made by those skilled in the art within the technical scope disclosed in the present utility model, based on the technical solution and the inventive concept of the present utility model, should be included within the protection scope of the present utility model.
Claims
1. A silo unloader gate status optical fiber monitoring device comprising a pneumatic cylinder (1), characterized in that, The connecting frame (2) is fixedly installed at the telescopic end of the cylinder (1), the outer wall of the cylinder (1) is slidably installed with the sliding block (4) through the limiting sliding rail (3), one end of the sliding block (4) is fixedly installed with the fixed frame (5), the outer wall of the limiting sliding rail (3) is slidably installed with the bolt (8) through the protective cover (7), the end of the bolt (8) is circular, the other end of the sliding block (4) is provided with an arc-shaped slope, the outer wall of the bolt (8) is fixedly installed with the connecting plate (9), the upper end surface of the connecting plate (9) is connected with the inner wall of the protective cover (7) through the reset mechanism, the outer wall of the bolt (8) is fixedly installed with the moving plate (11), the upper end surface of the cylinder (1) is fixedly installed with the fixed plate (13) through the fixing mechanism, the bottom wall of the fixed plate (13) is fixedly installed with the fiber optic strain sensor (14) corresponding to the moving plate (11), the outer wall of the sliding block (4) is slidably installed with the connecting sleeve (16), and the outer wall of the limiting sliding rail (3) is connected with the connecting sleeve (16) through the connecting mechanism.
2. A grain bin unloader gate position fiber optic monitoring device as described in claim 1 wherein, The reset mechanism comprises a reset spring (10) installed on the outer wall of the bolt (8), and the two ends of the reset spring (10) are elastically connected with the inner wall of the protective cover (7) and the upper end surface of the connecting plate (9) respectively.
3. A grain bin unloader gate position fiber optic monitoring device as described in claim 2 wherein, The fixing mechanism comprises two fixed blocks (12) fixedly installed on the upper end surface of the cylinder (1), and the end portions of the two fixed blocks (12) are fixedly connected with the bottom wall of the fixed plate (13).
4. A grain bin unloader gate position fiber optic monitoring device as described in claim 3 wherein, The connecting mechanism comprises two connecting rods (15) fixedly installed on the outer wall of the limiting sliding rail (3), and the end portions of the two connecting rods (15) are fixedly connected with the outer wall of the connecting sleeve (16).
5. A grain bin unloader gate position fiber optic monitoring device as described in claim 4 wherein, The upper end surface of the fixed frame (5) is rotatably penetrated and installed with the bolt (6), and the outer wall of the connecting frame (2) is provided with a threaded hole matched with the bolt (6).
6. A grain bin unloader gate position fiber optic monitoring device as described in claim 5 wherein, The connecting sleeve (16) is fixedly installed with a cleaning sleeve (17) inside, and the cleaning sleeve (17) is made of sponge material.