Grain bin monitoring device for layered gas detection

Abstract

The utility model relates to the technical field of gas detection, concretely is granary monitoring devices of layered gas detection, including mounting seat and multiple body detection mechanism, and mounting seat includes base and vertical rod, and gas detection mechanism includes sleeve, exhaust fan and detection element. The granary monitoring devices of layered gas detection, through the arrangement of multiple gas detection mechanisms on the vertical rod along different positions, each detection mechanism corresponds to a height level in the granary, can simultaneously carry out independent detection to the gas of different height, accurately captures the gas concentration difference of each level, and the layered distribution state of the gas in the bin is presented completely, provides accurate basis for the fine regulation and control of granary storage environment.

Description

Technical Field

[0001] This utility model relates to the field of gas detection technology, specifically a grain warehouse monitoring device with stratified gas detection. Background Technology

[0002] In grain storage, the state of gases is closely related to the condition of the grain. Grain warehouses are divided into bulk grain warehouses and warehouses where bagged grain is stacked. In both types of warehouses, the grain respiration produces gases such as carbon dioxide, the concentration and distribution of which are affected by factors such as temperature and humidity. Real-time monitoring of these gas conditions provides a scientific basis for safe grain storage, helps maintain grain quality, and is a crucial aspect of modern grain warehouse management.

[0003] Utility model patent CN218824155U discloses an intelligent gas detection device for grain silos. This device includes a housing and a controller. A first solenoid valve and a second solenoid valve are installed at the bottom of the housing. The first solenoid valve is connected to a first air inlet, and the second solenoid valve is connected to a second air inlet. Cleaning blades for cleaning the filter screen are installed inside the second air inlet. A heat dissipation plate is installed on the outer side wall of the housing, and an air outlet is installed at the top of the housing to accelerate heat dissipation from the heat dissipation plate. A vacuum pump is installed inside the housing near the controller. When in use, the intelligent gas detection device improves cooling efficiency through airflow at the air outlet and the heat dissipation plate. The cleaning blades at the second air inlet clean the filter screen, thereby improving detection efficiency and accuracy. The first air inlet is inserted into the grain, and the second air inlet is placed inside the grain silo, thus enabling independent detection of the grain silo interior and the grain interior.

[0004] The intelligent gas detection device for grain storage buildings is insufficient to fully reflect the stratified distribution characteristics of gas in grain storage warehouses where bagged grain is stacked. This may lead to missed detection of local gas anomalies due to the differences in breathing intensity and gas concentration at different heights of the grain pile. Therefore, we propose a stratified gas detection grain storage monitoring device. Utility Model Content

[0005] The purpose of this invention is to provide a grain storage monitoring device with stratified gas detection to solve the problems mentioned in the background art.

[0006] To achieve the above objectives, this utility model provides the following technical solution: A stratified gas detection grain storage monitoring device includes: Mounting base, serving as the supporting component of the monitoring device, includes a base and a vertical rod fixed to the top of the base; A gas detection mechanism, serving as a gas monitoring component within the grain silo, comprises multiple gas detection mechanisms arranged at different positions along the upright post. Each gas detection mechanism includes a sleeve, a blower installed at the inner end of the sleeve, and a detection element mounted on the outer circumferential surface of the sleeve. A protrusion is provided on the outer surface of the sleeve, with a vertically shaped hole on the protrusion through which the upright post passes. The end of the detection element has a protruding rod extending into the sleeve, and a detection sensor is mounted at the end of the protruding rod. Multiple gas detection mechanisms are positioned on the upright post by a positioning assembly.

[0007] Preferably, casters are installed at the four corners of the bottom of the base, and the mounting base can move along the ground via the casters; This setup allows for flexible adjustment of the device's position within the grain silo to meet the needs of different testing areas.

[0008] Preferably, the cross-section of the upright is square, the sleeve hole is square, and the protrusion is slidably connected to the upright through the sleeve hole; This design prevents the sleeve from rotating around the upright to maintain a stable orientation and facilitates adjustment of the height of the gas detection mechanism.

[0009] Preferably, the first end of the sleeve is the air inlet end, the last end of the sleeve is the air outlet end, the axial direction of the sleeve is perpendicular to the axial direction of the upright, and the first ends of multiple sleeves are arranged in a clockwise direction at 90° increments, starting from the topmost sleeve with the upright axis as the center, to form a 360° all-round coverage detection range, and the included angle between the first ends of any two adjacent sleeves is 90°. This setup allows each sleeve to collect gas samples from different directions, and the layered arrangement enables layered detection of gas within the chamber.

[0010] Preferably, a through cavity is provided inside the sleeve along its axial direction, the through cavity connecting the first and last ends of the sleeve, and a mesh is installed at the opening of both ends of the through cavity; In this setup, the cavity provides a passage for gas flow, while the mesh prevents impurities from entering and protects the internal components.

[0011] Preferably, the positioning assembly includes a fixing seat fixed to the outer surface of the sleeve and a positioning pin for positioning. A plurality of positioning holes are evenly spaced along the axial direction on the outer surface of the upright, and the end of the positioning pin is inserted into the positioning hole. In this setup, the height of the gas detection mechanism can be precisely fixed by using positioning pins in conjunction with different positioning holes.

[0012] Preferably, the top of the fixed base is provided with a protruding plate, the tail end of the positioning pin is fixed with a ball, and the positioning pin passes through the protruding plate and is slidably connected to the protruding plate; In this setup, the ball allows for easy operation of the positioning pin, and the sliding connection ensures smooth insertion and removal.

[0013] Preferably, a baffle is fixed on the outer peripheral surface of the positioning pin, and a clamping spring is sleeved on the outside of the positioning pin between the baffle and the protrusion. The first end of the clamping spring abuts against the front end of the baffle, and the end of the clamping spring abuts against the rear end face of the protrusion. The clamping spring is in a compressed state. In this configuration, the compressed retaining spring uses its elasticity to ensure a tight fit between the locating pin and the locating hole, preventing accidental dislodgement.

[0014] Compared with the prior art, the beneficial effects of this utility model are: This stratified gas detection grain silo monitoring device arranges multiple gas detection mechanisms at different positions along the upright pole. Each detection mechanism corresponds to a height level within the grain silo, allowing for simultaneous independent detection of gases at different heights. This accurately captures the differences in gas concentration at each level, fully presenting the stratified distribution of gases within the silo, and providing accurate data for the refined control of the grain silo storage environment. Attached Figure Description

[0015] Figure 1 This is a schematic diagram of the overall structure of this utility model; Figure 2 This is a schematic diagram of the mounting base in this utility model; Figure 3 This is a partial structural cross-sectional view of the upright pole in this utility model; Figure 4 This is an exploded view of the gas detection mechanism in this utility model; Figure 5 This is an exploded view of the positioning component in this utility model; The meanings of the labels in the diagram are as follows: 100. Mounting bracket; 110. Base; 111. Casters; 120. Upright post; 121. Positioning hole; 200. Gas detection mechanism; 210. Sleeve; 211. Through cavity; 212. convex seat; 213. Sleeve hole; 214. Partition mesh; 220. Exhaust fan; 230. Detection element; 231. Convex rod; 232. Detection sensor; 240. Positioning assembly; 241. Fixing seat; 2411. Convex plate; 242. Positioning pin; 2421. Baffle; 2422. Pulley; 243. Clamping spring. Detailed Implementation

[0016] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0017] Please see Figures 1-5 A stratified gas detection grain silo monitoring device includes a mounting base 100 as the supporting component of the monitoring device and gas detection mechanisms 200 as the gas detection components within the grain silo. The mounting base 100 includes a base 110 welded from steel plates and a high-strength alloy upright 120 fixed to the top of the base 110. Four casters 111 with brake pads are installed at the four corners of the bottom of the base 110, allowing the mounting base 100 to move along the ground. This facilitates flexible adjustment of the device's position according to different detection areas within the grain silo, improving the device's operational flexibility. Multiple gas detection mechanisms 200 are arranged along the upright 120 at different positions. Each gas detection mechanism 200 includes a PVC sleeve 210, an exhaust fan 220 installed at the inner end of the sleeve 210, and a detection element 230 installed on the outer surface of the sleeve 210. The first end of the sleeve 210 is the air inlet, and the last end is the air outlet. Several gas detection mechanisms 200 are positioned on the upright 120 by positioning components 240, so that each gas detection mechanism 200 can be stably fixed at a preset height, ensuring the accuracy of the detection position.

[0018] like Figures 1-4 As shown, in this utility model, a boss 212 integrally formed with the sleeve 210 is provided on the outer surface of the sleeve 210. A vertical sleeve hole 213 is provided on the boss 212. The upright rod 120 passes through the sleeve hole 213. The cross-section of the upright rod 120 is square. The sleeve hole 213 is a square hole. The boss 212 is slidably connected to the upright rod 120 through the sleeve hole 213. The square structure can prevent the sleeve 210 from rotating around the upright rod 120, ensuring that the orientation of the sleeve 210 is stable. At the same time, the sliding connection facilitates the adjustment of the height position of the gas detection mechanism 200.

[0019] like Figure 1 and Figure 4As shown, specifically, the axial direction of the sleeve 210 is perpendicular to the axial direction of the upright 120. The first ends of multiple sleeves 210 are arranged in a clockwise direction at 90° increments, starting from the top sleeve 210 and centered on the axis of the upright 120, forming a 360° all-round coverage detection range. The angle between the first ends of any two adjacent sleeves 210 is 90°. This arrangement allows each sleeve 210 to collect gas samples from different locations within the grain silo, avoiding interference when air is drawn in between the gas detection mechanisms 200 and reducing interference between them. Combined with the layered arrangement, it enables layered detection of gases in the three-dimensional space within the silo.

[0020] like Figure 4 As shown, a through cavity 211 is provided inside the sleeve 210 along its axial direction. The through cavity 211 connects the two ends of the sleeve 210. The exhaust fan 220 is installed in the through cavity 211. By briefly turning on the exhaust fan 220, the exhaust fan 220 can cause the gas in the silo to fill the through cavity 211, so that the detection sensor 232 can contact the fresh gas sample, improve the timeliness of detection, and avoid the influence of residual air in the through cavity 211 on the detection. Metal mesh 214 is installed at both ends of the through cavity 211. The mesh 214 can block grains, dust and other impurities from entering the through cavity 211, and prevent the exhaust fan 220 and the detection sensor 232 from being contaminated or blocked.

[0021] like Figure 4 As shown, it is worth noting that the end of the detection element 230 is provided with a protruding rod 231. The protruding rod 231 extends into the sleeve 210. The end of the protruding rod 231 is equipped with a detection sensor 232. The length design of the protruding rod 231 ensures that the detection sensor 232 is in the airflow path within the cavity 211, so that the sensor can directly contact the flowing gas and improve the detection accuracy.

[0022] like Figure 4 and Figure 5 As shown, it is worth noting that the positioning assembly 240 includes a fixing seat 241 fixed on the outer surface of the sleeve 210 and a positioning pin 242 for positioning. A plurality of positioning holes 121 are evenly spaced along the axial direction on the outer surface of the upright 120. The end of the positioning pin 242 is inserted into the positioning hole 121. By cooperating with the positioning pin 242 and different positioning holes 121, the height position of the gas detection mechanism 200 on the upright 120 can be accurately fixed.

[0023] like Figure 4 and Figure 5As shown, it should be added that the top of the fixing base 241 is provided with a protruding plate 2411, and the tail end of the positioning pin 242 is fixed with a ball 2422. The positioning pin 242 passes through the protruding plate 2411 and is slidably connected to the protruding plate 2411. The ball 2422 facilitates the operator to pull the positioning pin 242, and the sliding connection ensures that the positioning pin 242 can be smoothly inserted and removed. A baffle 2421 is fixed on the outer peripheral surface of the positioning pin 242. A retaining spring 243 is sleeved on the outside of the positioning pin 242 located between the baffle 2421 and the protruding plate 2411. The head end of the retaining spring 243 abuts against the front end of the baffle 2421, and the tail end of the retaining spring abuts against the rear end face of the protruding plate 2411. The retaining spring 243 is in a compressed state. The compressed retaining spring 243 pushes the baffle 2421 through its elastic force, so that the tail end of the positioning pin 242 always maintains a tight fit with the positioning hole 121, preventing the positioning pin 242 from accidentally falling off.

[0024] In addition, after the detection sensor 232 detects the gas data in the air, it will transmit it to the detection element 230, which will then remotely transmit the data.

[0025] It is worth noting that the layered gas detection grain warehouse monitoring device of this utility model is applied to grain warehouses where bagged grain is stacked. Such grain warehouses have space for placing the device. The exhaust fan 220 and detection sensor 232 involved in this utility model are existing conventional technologies, and will not be described in detail in this utility model.

[0026] In this embodiment of the stratified gas detection grain silo monitoring device, the installation base 100 is first moved to the preset detection position inside the grain silo using the casters 111, and the brake pad fixing device of the casters 111 is locked. Then, the height of each gas detection mechanism 200 is adjusted according to the detection requirements. The ball 2422 is pulled to disengage the positioning pin 242 from the positioning hole 121. After the sliding protrusion 212 along the upright 120 reaches the target height, the ball 2422 is released, and the positioning pin 242 is inserted into the corresponding positioning hole under the action of the retaining spring 243. Position hole 121 is fixed; then, the exhaust fan 220 is briefly started, and the gas in the silo enters the passage cavity 211 through the air inlet screen 214 of the sleeve 210, flows through the detection sensor 232 and is discharged from the exhaust screen 214, so that the air in the silo replaces the original air in the sleeve 210. At this time, the detection sensor 232 detects the composition of the replaced gas and transmits the data to the detection element 230; finally, the gas detection mechanisms 200 at all heights and in all directions work synchronously to realize the layered detection of the gas in the grain silo.

[0027] The foregoing has shown and described the basic principles, main features, and advantages of this utility model. Those skilled in the art should understand that this utility model is not limited to the above embodiments. The embodiments and descriptions in the specification are merely preferred examples and are not intended to limit the utility model. Various changes and modifications can be made to this utility model without departing from its spirit and scope, and all such changes and modifications fall within the scope of the claimed utility model. The scope of protection of this utility model is defined by the appended claims and their equivalents.

Claims

1. A silo monitoring device for layered gas detection, characterized in that, include: Mounting base (100), as a supporting component of the monitoring device, includes a base (110) and a vertical rod (120) fixed to the top of the base (110). A gas detection mechanism (200) serves as a gas monitoring component within the grain silo. Multiple gas detection mechanisms (200) are arranged along the upright (120) at different positions on the upright (120). Each gas detection mechanism (200) includes a sleeve (210), a blower (220) installed at the inner end of the sleeve (210), and a detection element (230) installed on the outer peripheral surface of the sleeve (210). A raised convex surface is provided on the outer peripheral surface of the sleeve (210). The base (212) has a vertical sleeve hole (213) on it. The upright rod (120) passes through the sleeve hole (213). The end of the detection element (230) has a protruding rod (231) that extends into the sleeve (210). The end of the protruding rod (231) is equipped with a detection sensor (232). Several gas detection mechanisms (200) are positioned on the upright rod (120) by a positioning assembly (240).

2. The tiered gas-detecting grain bin monitoring device of claim 1, wherein: The base (110) is equipped with casters (111) at the four corners of its bottom end, and the mounting base (100) can move along the ground via the casters (111).

3. The layered gas-detecting grain bin monitoring device of claim 1, wherein: The cross-section of the upright (120) is square, the sleeve hole (213) is a square hole, and the boss (212) is slidably connected to the upright (120) through the sleeve hole (213).

4. The layered gas-detecting grain bin monitoring device of claim 1, wherein: The first end of the sleeve (210) is the air inlet end, and the last end of the sleeve (210) is the air outlet end. The axial direction of the sleeve (210) is perpendicular to the axial direction of the upright (120). The first ends of multiple sleeves (210) are arranged in a clockwise direction, starting from the top sleeve (210) with the axis of the upright (120) as the center, and progressively in a 90° direction to form a 360° all-round coverage detection range. The included angle between the first ends of any two adjacent sleeves (210) is 90°.

5. The layered gas-detecting grain bin monitoring device of claim 1, wherein: The sleeve (210) has a through cavity (211) along its axial direction. The through cavity (211) connects the two ends of the sleeve (210). A mesh (214) is installed at the opening of both ends of the through cavity (211).

6. The tiered gas-detecting grain bin monitoring device of claim 1, wherein: The positioning component (240) includes a fixing seat (241) fixed on the outer surface of the sleeve (210) and a positioning pin (242) for positioning. The outer surface of the upright (120) is provided with a plurality of positioning holes (121) at equal intervals along its axial direction. The end of the positioning pin (242) is inserted into the positioning hole (121).

7. The tiered gas-detecting grain bin monitoring device of claim 6, wherein: The top of the fixed base (241) is provided with a protruding plate (2411), and the tail end of the positioning pin (242) is fixed with a ball (2422). The positioning pin (242) passes through the protruding plate (2411) and is slidably connected to the protruding plate (2411).

8. The tiered gas-detecting grain bin monitoring device of claim 7, wherein: A baffle (2421) is fixed on the outer peripheral surface of the positioning pin (242). A clamping spring (243) is sleeved on the outside of the positioning pin (242) located between the baffle (2421) and the protrusion (2411). The first end of the clamping spring (243) abuts against the front end of the baffle (2421), and the end of the clamping spring (243) abuts against the rear end face of the protrusion (2411). The clamping spring (243) is in a compressed state.

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