An edge computing based internet of things valve controller

Abstract

The utility model relates to industrial automation technical field discloses a kind of valve controllers of internet of things based on edge computing, including control main body and the clamping mechanism of fixed connection in the control main body bottom wall, fixed mechanism is installed in the bottom wall left and right sides of control main body, clamping mechanism rotates through servo motor drive turntable, turntable does linear motion in slide rail and limit board sliding slot through link rod pull slider, drive multiple clamping plates to be synchronized to the center and be folded to clamp valve handwheel, fixed mechanism rotates through the rotation bar drive two-way screw rod, two-way screw rod drives two sliders to move synchronously towards or away from each other, slider drives telescopic rod to adjust height.The utility model utilizes clamping mechanism to realize to different specifications valve handwheel's self-adapting stable clamping, utilize fixed mechanism to realize device on pipeline Double regulation and locking, effectively offset reverse torque and prevent displacement, guarantee valve control precision.

Description

Technical Field

[0001] This utility model relates to the field of industrial automation technology, and in particular to an IoT valve controller based on edge computing. Background Technology

[0002] With the rapid development of industrial automation and Internet of Things technologies, valve control, as a key link in pipeline transportation systems, directly affects the operational efficiency and safety of the entire pipeline network due to its level of intelligence. In particular, with the introduction of edge computing technology, the requirements for valve response speed and control accuracy are increasing. However, for the huge number of traditional manual valves in the pipeline network, directly replacing them with intelligent electric valves is not only costly but also has a long construction period, affecting normal production. Therefore, installing external valve controllers without changing the original pipeline structure has become an efficient upgrade and transformation solution.

[0003] However, existing external valve controllers suffer from significant drawbacks in practical applications, namely poor mechanical adaptability and insufficient stability. Due to the wide variety of valves, handwheel diameters, and pipe thicknesses in the field, existing controllers use fixed-size connecting fixtures, making it difficult to achieve adaptive and stable clamping of handwheels of different specifications. This leads to slippage or free rotation during power transmission. More seriously, when the motor outputs torque to drive the valve to rotate, if the controller body lacks a fixed structure that can adapt to different pipe diameters and provide effective reaction force support, the controller body is prone to swaying or even displacement under the action of reverse torque. This instability in the connection of the mechanical structure directly hinders the effective implementation of high-precision control commands from the edge computing module, severely restricting the reliability and widespread application of IoT valve control systems.

[0004] Therefore, this invention proposes an IoT valve controller based on edge computing to address the shortcomings of existing technologies. Utility Model Content

[0005] In view of the problem that the existing edge computing-based IoT valve controller has poor mechanical adaptability, which leads to unstable fixing and slippage when facing different specifications of valve handwheels and pipeline environments, or displacement due to motor vibration, thus affecting control accuracy, this utility model aims to provide an edge computing-based IoT valve controller with an improved structure that can effectively solve the above problems.

[0006] This utility model provides an IoT valve controller based on edge computing, including: a control body, a clamping mechanism fixedly connected to the bottom wall of the control body, and a fixing mechanism installed on the left and right sides of the bottom wall of the control body.

[0007] The clamping mechanism has a structure that drives the turntable to rotate via a servo motor, which in turn drives the connecting rod to pull the slider one to make linear motion within the slide rail and the limit plate groove, thereby driving the clamping plate to move. The fixing mechanism has a structure that drives the bidirectional lead screw to rotate via a rotating rod, thereby driving the two sliders two to move synchronously and cooperate with the telescopic rod and the clamping block at the bottom to grasp.

[0008] Furthermore, the fixed groove is fixedly connected to the bottom wall of the control body, the servo motor is fixedly connected to the inner wall of the fixed groove, the fixed plate is fixedly connected to the middle of the inner wall of the fixed groove, the output end of the servo motor passes through the fixed plate and is fixedly connected to a turntable, the outer wall of the turntable is rotatably connected to a linkage rod, the slide rail is fixedly connected to the top wall of the fixed plate, the slider is slidably connected to the top wall of the slide rail, the end of the linkage rod away from the turntable is rotatably connected to the middle of the outer wall of the slider, the clamping plate is fixedly connected to the outer wall of the slider, and the limiting plate is fixedly connected to the top wall of the fixed groove. The top wall of the limiting plate has a supply for... The sliding groove of slider one is fixedly connected to the bottom wall of the control body. The inner wall of the slotted block has a sliding groove. Bearings are installed on both the left and right sides of the inner wall of the sliding groove. A double-acting screw is fixedly connected between the inner rings of the two bearings. The rotating rod is installed on the right side of the outer wall of the slotted block. One end of the rotating rod passes through the outer wall of the slotted block and is fixedly connected to the right side of the outer wall of the double-acting screw. Slider two is threadedly connected to the outer wall of the double-acting screw. Slider two is slidably connected in the sliding groove. The telescopic rod is fixedly connected to the bottom wall of slider two. The clamping block is fixedly connected to the left side of the outer wall of the telescopic rod.

[0009] Preferably, the outer wall of the turntable is circumferentially connected to multiple sets of linkage rods, the number of clamping plates corresponds to the number of linkage rods, and the multiple clamping plates are located at the bottom center of the control body.

[0010] Preferably, the threads at both ends of the bidirectional lead screw have opposite directions of rotation, and the fixing mechanism includes two sliders, which are respectively threaded to both ends of the bidirectional lead screw, and the two sliders are symmetrically distributed in the sliding groove.

[0011] Preferably, the telescopic rod includes an outer tube fixedly connected to the bottom wall of the second slider and an inner rod slidably connected inside the outer tube, with a clamping block fixedly connected to the bottom end of the inner rod.

[0012] Preferably, the outer sleeve has a threaded hole on its side wall, and a fastening bolt for pressing against the inner rod is threaded into the threaded hole.

[0013] Preferably, the side of the clamping block away from the telescopic rod has a concave arc-shaped structure, and the inner wall of the concave arc-shaped structure is provided with anti-slip texture.

[0014] Preferably, a handwheel is fixedly connected to one end of the rotating rod outside the slotted block, and the outer surface of the handwheel is provided with anti-slip knurling.

[0015] Preferably, a rubber buffer pad is fixedly connected to the side wall of the clamping plate facing the center of the control body, and the surface of the rubber buffer pad has several anti-slip protrusions.

[0016] This utility model has the following beneficial effects:

[0017] 1. This utility model solves the problem that existing valve controllers are not securely fixed and are prone to vibration and displacement during motor operation when facing different pipe diameters and heights. It effectively counteracts reverse torque and prevents device displacement, thereby ensuring the accuracy and stability of valve control. The rotating rod drives the two sliders to move synchronously in opposite directions to adjust the horizontal distance. The telescopic rod adjusts the vertical height, and the concave arc-shaped anti-slip structure of the clamping block grips the pipe.

[0018] 2. This utility model solves the problems of poor compatibility of valve controllers with valve handwheels of different sizes and difficulty in controlling the clamping force in the prior art by setting a clamping mechanism driven by a servo motor on the bottom wall of the control body. The servo motor drives the turntable to rotate and pulls the slider to make linear motion on the slide rail and limit plate through multiple sets of linkage rods. This causes multiple clamping plates to synchronously close towards the center to clamp the valve handwheel. It achieves the effect of realizing adaptive and stable clamping of valve handwheels of various specifications and providing a reliable mechanical connection foundation for the execution of Internet of Things control functions.

[0019] 3. This utility model solves the problem of easy slippage or damage to valve and pipe surfaces caused by direct hard contact between metal parts by setting a rubber buffer pad with anti-slip protrusions on the center side of the clamping plate and setting anti-slip texture on the concave arc surface of the clamping block. It achieves the effect of enhancing the friction of mechanical connection to improve transmission efficiency and locking reliability while effectively protecting the integrity of the surface of the field equipment. Attached Figure Description

[0020] Figure 1 This is a front view of an IoT valve controller based on edge computing proposed in this utility model;

[0021] Figure 2 This is a perspective view of an IoT valve controller based on edge computing proposed in this utility model;

[0022] Figure 3 This is a schematic diagram of the clamping mechanism structure of an IoT valve controller based on edge computing proposed in this utility model;

[0023] Figure 4 An exploded view of an IoT valve controller based on edge computing proposed in this utility model;

[0024] Figure 5 This is a diagram illustrating the fixing mechanism of an IoT valve controller based on edge computing proposed in this utility model.

[0025] Figure 6 This is a partial structural cross-sectional view of the fixing mechanism of an IoT valve controller based on edge computing proposed in this utility model.

[0026] Legend:

[0027] 1. Control body; 2. Clamping mechanism; 201. Fixing groove; 202. Fixing plate; 203. Servo motor; 204. Slide rail; 205. Slider one; 206. Linking rod; 207. Turntable; 208. Clamping plate; 209. Limiting plate; 210. Slide groove; 3. Fixing mechanism; 301. Slotted block; 302. Sliding groove; 303. Bidirectional lead screw; 304. Bearing; 305. Slider two; 306. Rotating rod; 307. Telescopic rod; 308. Clamping block. Detailed Implementation

[0028] To make the objectives, technical solutions, and advantages of this utility model clearer, the technical solutions in the embodiments of this utility model will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only a part of the embodiments of this utility model, and not all of them. All other embodiments obtained by those skilled in the art based on the embodiments of this utility model without creative effort are within the scope of protection of this utility model.

[0029] Example:

[0030] Please refer to Figures 1 to 6 This utility model provides an IoT valve controller based on edge computing, which aims to solve the problems in the prior art where valve controllers lack an effective adaptive clamping structure when facing valves of different sizes, resulting in unstable control, and the controller itself is not firmly fixed on the pipeline, making it easy for displacement to occur when the motor is working and vibrates, affecting the control accuracy.

[0031] Please refer to Figure 2 , Figure 3 and Figure 4 An IoT valve controller based on edge computing includes a control body 1 and a clamping mechanism 2 fixedly connected to the bottom wall of the control body 1. The IoT valve controller based on edge computing also includes a fixing mechanism 3, which is installed on the left and right sides of the bottom wall of the control body 1. The control body 1 serves as the mounting base of the overall structure to support the internal edge computing module and drive components. The clamping mechanism 2 achieves adaptive clamping of valve handwheels of different sizes through motor drive and linkage transmission, thereby achieving stable support and anti-shaking fixation for the pipeline or valve body.

[0032] Specifically, the clamping mechanism 2 includes a fixing groove 201 fixedly connected to the bottom wall of the control body 1. A servo motor 203, serving as a power source, is fixedly connected to the inner wall of the fixing groove 201. A fixing plate 202 is fixedly connected to the middle of the inner wall of the fixing groove 201. The output end of the servo motor 203 passes through the fixing plate 202 and is fixedly connected to a turntable 207. Multiple sets of linkage rods 206 are rotatably connected to the outer wall of the turntable 207 in a circular array. A slide rail 204 is fixedly connected to the top wall of the fixing plate 202. A slider 205 is slidably connected to the top wall of the slide rail 204. The bottom of the slider 205 is provided with a guide groove that matches the cross-section of the slide rail 204. The end of the linkage rod 206 away from the turntable 207 is rotatably connected to the slider 205. At the center of the outer wall of slider 205, a clamping plate 208 is fixedly connected to the outer wall of slider 205. The number of clamping plates 208 corresponds to the number of linkage rods 206, and multiple clamping plates 208 are located at the bottom center of the control body 1 and are configured to move towards or away from each other under the drive of servo motor 203. A limit plate 209 is fixedly connected to the top wall of the fixed groove 201. A slide groove 210 is opened on the top wall of the limit plate 209 for slider 205 to slide. The top of slider 205 protrudes from the slide groove 210 and is fixedly connected to the side wall of clamping plate 208 by bolts. A rubber buffer pad is fixedly connected to the side wall of clamping plate 208 facing the center of control body 1. Several anti-slip protrusions are distributed on the surface of the rubber buffer pad.

[0033] Please refer to Figure 5 and Figure 6The fixing mechanism 3 has a structural layout that is respectively installed on the left and right sides of the bottom wall of the control body 1. The fixing mechanism 3 includes a slotted block 301 fixedly connected to the bottom wall of the control body 1. The inner wall of the slotted block 301 has a sliding groove 302 extending in the horizontal direction. Bearings 304 for supporting the rotating components are installed on both the left and right sides of the inner wall of the sliding groove 302. A double-acting screw 303 is fixedly connected between the inner rings of the two bearings 304. The threads at both ends of the double-acting screw 303 have opposite directions. A rotating rod 306 for manual drive is installed on the right side of the outer wall of the slotted block 301. One end of the rotating rod 306 passes through the outer wall of the slotted block 301 and is fixedly connected to the right side of the outer wall of the double-acting screw 303. A handwheel is fixedly connected to the end of the rotating rod 306 outside the slotted block 301. The outer surface of the handwheel is provided with anti-slip knurling. Two sliders 305 are threadedly connected to the outer wall of the double-acting screw 303. The two sliders 305 are respectively threadedly connected to the inner rings of the rotating components. The two ends of the bidirectional lead screw 303 are symmetrically distributed within the sliding groove 302. The second slider 305 is slidably connected within the sliding groove 302. A telescopic rod 307 is fixedly connected to the bottom wall of the second slider 305. The telescopic rod 307 includes an outer sleeve fixedly connected to the bottom wall of the second slider 305 and an inner rod slidably connected inside the outer sleeve. A threaded hole is provided on the side wall of the outer sleeve, and a fastening bolt for pressing against the inner rod is threaded into the threaded hole. A clamping block 308 for gripping the pipe is fixedly connected to the left side of the outer wall of the telescopic rod 307. The clamping block 308 is fixedly connected to the bottom end of the inner rod. The side of the clamping block 308 away from the telescopic rod 307 has a concave arc-shaped structure. The inner wall of the concave arc-shaped structure has anti-slip texture, which ensures that the control body 1 can be securely locked onto the valve base of pipes with different diameters and heights by the fixing mechanism 3, thereby effectively counteracting the reverse torque generated when the motor is working and preventing the device from shifting.

[0034] In a preferred embodiment, to ensure uniform force and centering accuracy of the clamping mechanism 2, multiple sets of linkage rods 206 are rotatably connected to the outer wall of the turntable 207 in a circumferential array. The number of clamping plates 208 corresponds to the number of linkage rods 206. The multiple clamping plates 208 are configured to move synchronously in a centripetal or centrifugal motion under the drive of the servo motor 203. The bottom of the slider 205 is provided with a guide groove that matches the cross-sectional shape of the slide rail 204 to ensure linear sliding stability. The top of the slider 205 passes through the slide groove 210 and protrudes from the top wall of the limiting plate 209. The side wall of the slider 205 is fixedly connected to the side wall of the clamping plate 208 by bolts for easy disassembly and maintenance. A rubber buffer pad is fixedly connected to the side wall of the clamping plate 208 facing the center of the control body 1. The surface of the rubber buffer pad is distributed with several anti-slip protrusions to prevent slippage during clamping and to protect the surface of the valve handwheel.

[0035] In another preferred embodiment, to enhance the adjustment flexibility and locking reliability of the fixing mechanism 3, the two-way lead screw 303 is provided with threads with opposite directions of rotation at both ends. The fixing mechanism 3 includes two sliders 305, which are threadedly connected to the two ends of the two-way lead screw 303 respectively. The two sliders 305 are symmetrically distributed in the sliding groove 302 and can move synchronously towards or away from each other by rotating the rotating rod 306. The telescopic rod 307 includes an outer tube fixedly connected to the bottom wall of the slider 305 and an inner rod slidably connected inside the outer tube. The side wall of the outer tube is provided with a threaded hole, and a fastening bolt for pressing against the outer wall of the inner rod to lock the telescopic length is threaded in the threaded hole. The clamping block 308 is fixedly connected to the bottom end of the inner rod. The side of the clamping block 308 away from the telescopic rod 307 is set as a concave arc structure to fit the outer wall of the cylindrical pipe. The inner wall of the concave arc structure is provided with anti-slip texture. A handwheel is fixedly connected to one end of the rotating rod 306 outside the slotted block 301. The outer surface of the handwheel is provided with anti-slip knurling.

[0036] Working principle: To ensure the device is securely installed and adaptable to pipe environments of different sizes, the operator rotates the handwheel at the end of the rotating rod 306. The rotating rod 306 drives the double-acting screw 303 to rotate within the bearing 304. Due to the opposite thread direction at both ends of the double-acting screw 303, the two sliders 305 threaded to both ends of the double-acting screw 303 move synchronously towards or away from each other within the sliding groove 302. The sliders 305 drive the telescopic rod 307 to move to adjust the horizontal distance. The extension length of the inner rod of the telescopic rod 307 relative to the outer sleeve is adjusted according to the height of the valve on site and locked by the fastening bolts. The clamping block 308 uses the concave arc structure and anti-slip texture to tightly fit and hold the pipe or valve base. The double adjustment and locking of the fixing mechanism 3 effectively counteracts the vibration generated by the control body 1 during operation and prevents displacement.

[0037] When the device is fixed and the valve control task is executed, the edge computing module sends a command to start the servo motor 203. The output of the servo motor 203 drives the turntable 207 to rotate. The rotation of the turntable 207 pulls the slider 205 through multiple connecting rods 206 distributed in a circular array. The slider 205 moves linearly along the top wall of the slide rail 204 and the groove 210 of the limit plate 209. The slider 205 drives the fixedly connected clamping plate 208 to close towards the center in a synchronous manner. The multiple clamping plates 208, together with the rubber buffer pads and anti-slip protrusions on the surface, provide multi-directional stable clamping for the valve handwheel. Through the mechanical linkage of the clamping mechanism 2, adaptive clamping of valves of different specifications is achieved, thereby providing a stable mechanical connection foundation for the precise execution of edge computing and IoT control functions.

Claims

1. An IoT valve controller based on edge computing, comprising: Control body (1), and clamping mechanism (2) fixedly connected to the bottom wall of the control body (1); Its features are, The clamping mechanism (2) includes a fixing groove (201) fixedly connected to the bottom wall of the control body (1). A servo motor (203) is fixedly connected to the inner wall of the fixing groove (201). A fixing plate (202) is fixedly connected to the middle of the inner wall of the fixing groove (201). The output end of the servo motor (203) passes through the fixing plate (202) and is fixedly connected to a turntable (207). A linkage rod (206) is rotatably connected to the outer wall of the turntable (207). The top wall of the fixing plate (202) is... A slide rail (204) is fixedly connected, and a slider (205) is slidably connected to the top wall of the slide rail (204). The end of the connecting rod (206) away from the turntable (207) is rotatably connected to the middle of the outer wall of the slider (205). A clamping plate (208) is fixedly connected to the outer wall of the slider (205). A limiting plate (209) is fixedly connected to the top wall of the fixing groove (201). A sliding groove (210) for the slider (205) to slide is opened on the top wall of the limiting plate (209).

2. The IoT valve controller based on edge computing according to claim 1, characterized in that, It also includes a fixing mechanism (3), which is installed on the left and right sides of the bottom wall of the control body (1). The fixing mechanism (3) includes a slotted block (301) fixedly connected to the bottom wall of the control body (1). A sliding groove (302) is provided on the inner wall of the slotted block (301). Bearings (304) are installed on the left and right sides of the inner wall of the sliding groove (302). A two-way lead screw (303) is fixedly connected between the inner rings of the two bearings (304). The slotted block (301) is located on the outer side of the inner wall. A rotating rod (306) is installed on the right side of the wall. One end of the rotating rod (306) passes through the outer wall of the slotted block (301) and is fixedly connected to the right side of the outer wall of the double-acting screw (303). A slider two (305) is threadedly connected to the outer wall of the double-acting screw (303). The slider two (305) is slidably connected in the sliding groove (302). A telescopic rod (307) is fixedly connected to the bottom wall of the slider two (305). A clamping block (308) is fixedly connected to the left side of the outer wall of the telescopic rod (307).

3. The IoT valve controller based on edge computing according to claim 1, characterized in that, The outer wall of the turntable (207) is circumferentially connected to multiple sets of the connecting rods (206). The number of clamping plates (208) corresponds to the number of the connecting rods (206). Multiple clamping plates (208) are located at the bottom center of the control body (1). The top of the slider (205) protrudes from the groove (210) and is fixedly connected to the side wall of the clamping plate (208) by bolts.

4. The IoT valve controller based on edge computing according to claim 2, characterized in that, The two ends of the bidirectional lead screw (303) have opposite threads. The fixing mechanism (3) includes two sliders (305). The two sliders (305) are threaded to the two ends of the bidirectional lead screw (303) respectively, and the two sliders (305) are symmetrically distributed in the sliding groove (302).

5. The IoT valve controller based on edge computing according to claim 2, characterized in that, The telescopic rod (307) includes an outer tube fixedly connected to the bottom wall of the slider two (305) and an inner rod slidably connected inside the outer tube, and the clamping block (308) is fixedly connected to the bottom end of the inner rod.

6. The IoT valve controller based on edge computing according to claim 2, characterized in that, The side of the clamping block (308) away from the telescopic rod (307) has a concave arc-shaped structure.

7. The IoT valve controller based on edge computing according to claim 2, characterized in that, The rotating rod (306) is fixedly connected to a handwheel at one end outside the slotted block (301).

8. The IoT valve controller based on edge computing according to claim 1, characterized in that, A rubber buffer pad is fixedly connected to the side wall of the clamping plate (208) facing the center of the control body (1), and the surface of the rubber buffer pad is distributed with several anti-slip protrusions.

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