An industrial intelligent gateway device based on PLC

Abstract

The present invention is directed to the technical field of intelligent gateways, and particularly to an industrial intelligent gateway device based on PLC. It includes a gateway housing, the gateway housing is fixedly connected with a bellows, the gateway housing is fixedly connected with a first fixing plate, the first fixing plate is provided with a first filter plate, the first filter plate is fixedly connected with a motor, the output shaft of the motor is fixedly connected with a fan blade, the output shaft of the motor is rotatably connected with a rotating ring, the rotating ring is fixedly connected with a fixing frame, a sliding rod is slidably connected in the fixing frame, and the sliding rod is fixedly connected with a cleaning plate. The present invention wipes the first filter plate through the cleaning plate. When the temperature in the gateway housing changes, resulting in a change in the rotation speed of the fan blade, the amount of impurities in contact with the first filter plate changes. At this time, the wiping speed of the cleaning plate on the first filter plate will also automatically change, avoiding dust adhering to the first filter plate and causing it to become blocked, thereby affecting the cooling effect of the airflow on the electronic components in the gateway housing.

Description

Technical Field

[0001] The present invention relates to the technical field of intelligent gateways, and particularly to an industrial intelligent gateway device based on PLC. Background Art

[0002] An industrial intelligent gateway is a hardware device that connects industrial field devices and information systems. Industrial gateways are also known as industrial Internet of Things intelligent gateways, wireless data acquisition gateways, communication acquisition gateways, PLC wireless gateways, and industrial communication gateways, etc. Its main functions include data acquisition, protocol conversion, and data transmission, etc. An industrial gateway mainly consists of a housing, an internal storage module, a processor, a power supply, a communication interface, and a heat dissipation structure, etc. Among them, the communication interface is used to provide a connection port for the wires of devices such as PLC. PLC refers to a programmable logic controller. PLC is usually a computer used in industrial automation control systems, and is specially designed to monitor production processes, machine equipment, and various parameters and conditions in industrial processes.

[0003] During the use of an industrial gateway, a large amount of heat is generated by its internal electronic components. To ensure the normal operation of the industrial gateway, it is usually necessary to cool down the internal electronic components of the industrial gateway through structures such as heat dissipation holes or fans.

[0004] However, since industrial gateways are generally installed in industrial sites, and there are a large number of dust and other impurities in industrial sites, a large amount of dust and other impurities will be blown into the housing of the industrial gateway during the cooling process of the fan. After long-term use, it will cause the heat dissipation holes of the industrial gateway to be blocked, affecting the heat dissipation of the industrial gateway. Even the dust adhering to the electronic components inside the industrial gateway will directly affect its normal operation, resulting in a decrease in the stability of the operation of the industrial gateway. Summary of the Invention

[0005] In order to overcome the drawback that a large amount of dust and other impurities will be blown into the housing of the industrial gateway during the cooling process of the fan, resulting in the blockage of the heat dissipation holes of the industrial gateway and affecting its heat dissipation efficiency, the present invention provides an industrial intelligent gateway device based on PLC.

[0006] The technical solution is as follows: An industrial intelligent gateway device based on a PLC, including a gateway housing, on which a bellows is fixedly connected. On one side of the gateway housing close to the bellows, a first fixing plate is fixedly connected. A first filter plate is installed on the first fixing plate. A motor is fixedly connected to the side of the first filter plate close to the bellows. The output shaft of the motor is fixedly connected to a fan blade rotatably connected to the bellows. A rotating ring located inside the bellows is rotatably connected to the output shaft of the motor. A torsion spring is fixedly connected between the output shaft of the motor and the rotating ring. The rotating ring is fixedly connected with fixing frames evenly distributed circumferentially. A sliding rod is slidably connected inside the fixing frame. An elastic member is fixedly connected between the fixing frame and the adjacent sliding rod. A first wedge block is fixedly connected to the side of the sliding rod away from the rotating ring. A second fixing plate is fixedly connected inside the bellows at positions where the first wedge blocks are evenly distributed circumferentially. Second wedge blocks evenly distributed circumferentially and in extrusion fit with all the first wedge blocks are fixedly connected to the second fixing plate. A cleaning plate is fixedly connected to the side of the sliding rod close to the first filter plate.

[0007] As a preference, the elastic force of the elastic member on the fixing frame is greater than the torsion force of the torsion spring on the rotating ring.

[0008] As a preference, the first filter plate is provided with inclined sieve plates distributed circumferentially. The side of the inclined sieve plate on the first filter plate close to the fan blade is in contact with the cleaning plate.

[0009] As a preference, a scraper is fixedly connected to the first filter plate. The scraper is provided with arc-shaped tooth brushes distributed linearly. A gap is provided between adjacent arc-shaped tooth brushes on the scraper. A collection channel is provided on the gateway housing at a position close to the scraper. The gap on the scraper is communicated with the collection channel. A collection shell is detachably connected to the gateway housing at a position close to the collection channel. The collection shell is communicated with the collection channel. A second filter plate is installed on the collection shell.

[0010] As a preference, it further includes symmetrically distributed chute frames. The symmetrically distributed chute frames are both fixedly connected to the side of the gateway housing close to the bellows. A sliding frame is slidably and limitably connected inside the chute frame. A connecting rod is slidably connected between the symmetrically distributed sliding frames. An elastic member is fixedly connected between the sliding frame and the connecting rod. A clamping frame is slidably and limitably connected to the sliding frame. An elastic member is fixedly connected between the sliding frame and the adjacent clamping frame. An inclined surface is provided on the side of the clamping frame away from the adjacent connecting rod. The symmetrically distributed clamping frames are in contact and cooperate with each other.

[0011] As a preference, the distance between the symmetrically distributed chute frames gradually decreases from the position away from the connecting rod to the position close to the connecting rod.

[0012] As a preference, on one side of the gateway housing close to the air box, a first hydraulic telescopic rod is fixedly connected. The telescopic end of the first hydraulic telescopic rod is fixedly connected with a first clamping plate. An electromagnetic slider fixedly connected with the first clamping plate is slidably connected to the gateway housing through an electromagnetic slide rail. A second clamping plate is slidably connected to the first clamping plate. An elastic member is fixedly connected between the first clamping plate and the second clamping plate. The sliding frame is in limit fit with the second clamping plate, and the sliding frame is in extrusion fit with the first clamping plate.

[0013] As a preference, a second hydraulic telescopic rod is fixedly connected to the gateway housing. The second hydraulic telescopic rod is communicated with the first hydraulic telescopic rod through a conduit. The telescopic end of the second hydraulic telescopic rod is fixedly connected with a limit frame. The limit frame is slidably connected to the gateway housing. The limit frame is fixedly connected with limit rods which are linearly arrayed and symmetrically distributed.

[0014] As a preference, it further includes a flexible block. The flexible block is fixedly connected between the gateway housing and the limit frame. Symmetrically distributed heavy blocks are fixedly connected to the gateway housing at positions close to the flexible block.

[0015] As a preference, a stop block is fixedly connected to the gateway housing on the side close to the air box. The thicknesses of the heavy block on the side close to the air box and the stop block are both greater than the thickness of the air box.

[0016] The beneficial effects achieved by the present invention with the above structure are as follows: 1. The present invention wipes the first filter plate through the cleaning plate. When the temperature in the gateway housing changes, resulting in a change in the rotation speed of the fan, the amount of impurities in contact with the first filter plate changes. At this time, the wiping speed of the cleaning plate on the first filter plate will also automatically change, avoiding dust adhering to the first filter plate and causing it to be blocked, thereby affecting the cooling force of the airflow on the electronic components in the gateway housing;

[0017] 2. The limit rods prevent the adjacent wire ends from detaching, avoiding the wires being directly pulled out manually, thereby preventing external personnel from accidentally touching or maliciously touching and causing the wires to be disconnected from the gateway housing, and further increasing the connection stability between the gateway housing and the wires;

[0018] 3. The flexible block protects the gateway housing. When the gateway housing falls, the two heavy blocks drive the bottom of the gateway housing to contact the ground first, and then the flexible block and the hydraulic oil in the second hydraulic telescopic rod buffer the gateway housing to achieve protection when the gateway housing falls. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 is a three-dimensional structural schematic diagram of the present invention;

[0020] Figure 2 is a three-dimensional structural sectional view of the air box of the present invention;

[0021] Figure 3 This is a three-dimensional structural schematic diagram of the leaf fan of the present invention;

[0022] Figure 4 This is a three-dimensional structural schematic diagram of the cleaning plate of the present invention;

[0023] Figure 5 This is a cross-sectional view of the three-dimensional structure of the rotating ring of the present invention;

[0024] Figure 6 This is a cross-sectional view of the three-dimensional structure of the gateway housing of the present invention;

[0025] Figure 7 This is a three-dimensional structural schematic diagram of the sliding frame of the present invention;

[0026] Figure 8 This is a cross-sectional view of the three-dimensional structure of the sliding frame of the present invention;

[0027] Figure 9 This is a three-dimensional structural schematic diagram of the first clamping plate and the second clamping plate of the present invention;

[0028] Figure 10 This is a three-dimensional structural schematic diagram of the flexible block of the present invention;

[0029] Figure 11 This is a three-dimensional structural schematic diagram of the stop block of the present invention.

[0030] Names and serial numbers of components in the figure: 1. Gateway housing, 2. Air box, 3. First fixing plate, 301. First filter plate, 4. Motor, 5. Leaf fan, 6. Rotating ring, 7. Fixing frame, 8. Sliding rod, 9. First wedge block, 10. Second fixing plate, 11. Second wedge block, 12. Cleaning plate, 13. Scraper, 14. Collection channel, 15. Collection shell, 16. Second filter plate, 17. Chute frame, 18. Sliding frame, 19. Connecting rod, 20. Clamping frame, 21. First hydraulic telescopic rod, 22. First clamping plate, 23. Second clamping plate, 24. Second hydraulic telescopic rod, 25. Limiting frame, 26. Limiting rod, 27. Flexible block, 28. Weight block, 29. Stop block. Detailed implementation manners

[0031] In order to make the technical means, creative features, achieved purposes and functions of the present invention easy to understand, the present invention will be further described below.

[0032] Since industrial gateways are generally installed in industrial sites with a lot of dust, a large amount of dust and other impurities will be blown into the housing of the industrial gateway during the cooling process of the fan. After long-term use, the heat dissipation holes of the industrial gateway will be blocked, affecting the heat dissipation of the industrial gateway. Even the dust adhering to the electronic components inside the industrial gateway will directly affect its normal operation, resulting in a decline in the stability of the industrial gateway operation.

[0033] Embodiment 1: An industrial intelligent gateway device based on PLC, combined with Figures 1-5 As shown, it includes a gateway housing 1. The electronic components such as the processor inside the gateway housing 1 are not shown in the figure. A temperature sensor is arranged inside the gateway housing 1, and a control terminal is arranged outside the gateway housing 1. Neither the temperature sensor nor the control terminal is shown in the figure. The temperature sensor is electrically connected to the control terminal. A hook is arranged on the left side of the gateway housing 1, which is used to fix the gateway housing 1. A plurality of communication interfaces for connecting wires of an external PLC are arranged on the right side of the gateway housing 1. Hereinafter, the wires on the PLC will be simply referred to as wires. Heat dissipation holes are arranged on the front and rear sides of the gateway housing 1. A wind box 2 is fixedly connected to the front side of the gateway housing 1. A first fixing plate 3 is fixedly connected to the heat dissipation hole on the front side of the gateway housing 1. A first filter plate 301 communicating with the heat dissipation hole on the front side of the gateway housing 1 is installed on the first fixing plate 3. A motor 4 electrically connected to the control panel is fixedly connected to the front side of the first filter plate 301. The output shaft of the motor 4 is fixedly connected to a fan 5 rotatably connected to the wind box 2. A rotating ring 6 located inside the wind box 2 is rotatably connected to the output shaft of the motor 4. A torsion spring is fixedly connected between the output shaft of the motor 4 and the rotating ring 6. Three fixing frames 7 evenly distributed in the circumferential direction are fixedly connected to the rotating ring 6. A sliding rod 8 is slidably connected inside the fixing frame 7. A spring member is fixedly connected between the fixing frame 7 and the adjacent sliding rod 8. The spring member is a compression spring. The elastic force of the spring member on the fixing frame 7 is greater than the torsion force of the torsion spring on the rotating ring 6, so that when the sliding rod 8 is blocked, the torsion spring on the rotating ring 6 is preferentially twisted, and then the spring member on the fixing frame 7 contracts. A first wedge block 9 is fixedly connected to the position of the sliding rod 8 away from the rotating ring 6. The inclined surface side of the first wedge block 9 faces away from the rotating ring 6. A second fixing plate 10 is fixedly connected to the wind box 2 near the first wedge blocks 9 evenly distributed in the circumferential direction. Second wedge blocks 11 evenly distributed in the circumferential direction and in extrusion fit with all the first wedge blocks 9 are fixedly connected to the second fixing plate 10. The inclined surface side of the second wedge block 11 faces the rotating ring 6, which is used to extrude the first wedge block 9, so that when the first wedge block 9 moves along the inclined surface side of the adjacent second wedge block 11, the first wedge block 9 moves and compresses the elastic member of the adjacent sliding rod 8. A cleaning plate 12 with a brush is fixedly connected to the rear side of the sliding rod 8.

[0034] Combined with Figure 4 With Figure 6As shown, a plurality of inclined sieve plates are circumferentially distributed on the first filter plate 301. The front side of the inclined sieve plate on the first filter plate 301 is attached to the cleaning plate 12, and is used to clean the first filter plate 301 through the cleaning plate 12.

[0035] Combined with Figures 2-4 and Figure 6 As shown, a scraper 13 is fixedly connected to the first filter plate 301. A plurality of arc-shaped tooth brushes are linearly distributed on the scraper 13. The arc-shaped tooth brushes on the scraper 13 are used to scrape off the impurities on the cleaning plate 12. A gap for the impurities scraped off the cleaning plate 12 to enter is provided between adjacent arc-shaped tooth brushes on the scraper 13. A collection channel 14 is provided at a position on the front side of the gateway housing 1 close to the scraper 13. The gap on the scraper 13 is communicated with the collection channel 14. A collection shell 15 is detachably connected to the position on the gateway housing 1 close to the collection channel 14 by threads. The collection shell 15 is communicated with the collection channel 14 and is used to collect the impurities scraped off the cleaning plate 12. Second filter plates 16 are symmetrically distributed front and back on the collection shell 15. The second filter plates 16 are used to block impurities such as dust, so as to facilitate the collection of dust.

[0036] When an operator needs to use this device to interconnect the network, the operator first fixes this device at a specified position through the hook on the left side of the gateway housing 1, and then inserts the wires of several PLCs (hereinafter referred to as wires for short) into different communication interfaces on the right side of the gateway housing 1 respectively. The operator turns on the power and can directly use this device. During the use of this device, the operation of the electronic components inside the gateway housing 1 will cause the temperature inside it to rise. At this time, the temperature sensor inside the gateway housing 1 senses the temperature rise. The temperature sensor converts the temperature change into an electrical signal and turns on the motor 4 through the control terminal. The temperature inside the gateway housing 1 is different, so the temperature sensed by the temperature sensor is different, resulting in different electrical signals received by the control terminal, and automatically adjusting the rotation speed of the output shaft of the motor 4. The higher the temperature, the faster the rotation speed of the output shaft of the motor 4, and the faster the speed at which the output shaft of the motor 4 drives the fan 5 to rotate. The fan 5 rotates and introduces the external air flow into the air box 2. Subsequently, the air flow in the air box 2 enters the heat dissipation holes on the front side of the gateway housing 1 through the first filter plate 301. The air flow enters the gateway housing 1 and cools the electronic components inside it. Finally, the air flow is discharged to the outside through the heat dissipation holes on the rear side of the gateway housing 1.

[0037] During the process of the air flow entering the gateway housing 1 and cooling the electronic components inside it, the output shaft of the motor 4 rotates and drives the rotating ring 6 to rotate through the torsion spring. The rotating ring 6 drives the fixedly arranged frames 7 evenly distributed in the circumferential direction to rotate counterclockwise (this rotation direction is based on Figure 1Taking the front view as the reference), the fixing frame 7 drives the adjacent sliding rod 8 to rotate. The sliding rod 8 drives the adjacent first wedge block 9 to rotate. When the first wedge block 9 rotates to contact the adjacent second wedge block 11, along with the movement of the first wedge block 9, the movement of the first wedge block 9 is temporarily blocked by the adjacent second wedge block 11, causing the sliding rod 8 and the adjacent fixing frame 7 to temporarily stop rotating, and the rotating ring 6 to temporarily stop rotating. The output shaft of the motor 4 drives the torsion spring of the rotating ring 6 to rotate and store energy. When the torsion spring of the rotating ring 6 is fully charged, the output shaft of the motor 4 rotates and drives the rotating ring 6 to rotate again through the torsion spring of the rotating ring 6. The rotating ring 6 drives the adjacent sliding rod 8 to rotate through the fixing frame 7. The fixing frame 7 drives the adjacent first wedge block 9 to rotate. The first wedge block 9 moves along the inclined surface of the adjacent second wedge block 11. The first wedge block 9 drives the adjacent sliding rod 8 to move towards the rotating ring 6. At this time, the sliding rod 8 drives the adjacent cleaning plate 12 to move. The elastic member of the sliding rod 8 is gradually compressed. The sliding rod 8 drives the adjacent cleaning plate 12 to move towards the rotating ring 6. During the movement and rotation of the cleaning plate 12, it wipes the adjacent inclined sieve plates on the first filter plate 301. This process is repeated continuously to wipe and clean the first filter plate 301.

[0038] When the first wedge block 9 moves out of contact with the inclined surface of the adjacent second wedge block 11, the second wedge block 11 loses the extrusion on the adjacent first wedge block 9. The torsion spring of the rotating ring 6 twists and resets. The rotating ring 6 drives the adjacent sliding rod 8 to rotate rapidly through the fixing frame 7. The sliding rod 8 drives the adjacent cleaning plate 12 to rotate rapidly. And at this time, the elastic member of the fixing frame 7 rebounds and resets to drive the adjacent sliding rod 8 to move rapidly. The sliding rod 8 drives the adjacent cleaning plate 12 to move rapidly. During the movement and rotation of the cleaning plate 12, it rapidly wipes the adjacent inclined sieve plates on the first filter plate 301. The faster the rotation speed of the cleaning plate 12, the faster the torsion spring of the rotating ring 6 stores energy, the higher the energy conversion efficiency of the torsion spring, and the faster the torsion spring of the rotating ring 6 rebounds, thereby enhancing the cleaning strength of the cleaning plate 12 on the first filter plate 301. During the rotation of the leaf fan 5, external dust enters the air box 2 and adheres to the first filter plate 301. At this time, it is beneficial for the cleaning plate 12 to continuously and rapidly wipe the inclined sieve plates on the first filter plate 301, preventing dust from adhering to the first filter plate 301 and causing it to become blocked, thus affecting the cooling strength of the airflow on the electronic components in the gateway housing 1. And the faster the rotation speed of the leaf fan 5, the faster the external airflow carries impurities through the first filter plate 301, and the corresponding wiping speed of the cleaning plate 12 on the first filter plate 301 will also increase, realizing the adaptive adjustment of the wiping speed of the first filter plate 301.

[0039] After the cleaning plate 12 wipes off the impurities on the first filter plate 301, the cleaning plate 12 rotates to contact the scraper 13. Along with the up-and-down movement of the cleaning plate 12, several arc-shaped toothbrushes on the scraper 13 jointly scrape the impurities on the adjacent cleaning plate 12, so that the impurities on the cleaning plate 12 fall off into several gaps on the scraper 13. The air flow drives the impurities to enter the collection shell 15 through the collection channel 14, and then the air flow is discharged to the outside through the two second filter plates 16. The two layers of second filter plates 16 block the impurities carried by the air flow, and the impurities are collected in the collection channel 14 and the collection shell 15. When the amount of impurities collected in the collection channel 14 and the collection shell 15 is too much, the operator removes the collection shell 15 and cleans the collection channel 14 and the collection shell 15, and finally screws the collection shell 15 back to its original position.

[0040] After the temperature of the electronic components in the gateway housing 1 returns to normal, the temperature sensor senses the temperature change and turns off the motor 4 through the control terminal. After the operator stops using the device, turn off the power supply and clean the device.

[0041] During the use of the gateway, if the gateway moves due to being accidentally touched, the wires of its communication socket will be disconnected. And when an external person accidentally touches or maliciously touches the wires, the wires are very likely to be pulled out of the communication socket, resulting in the loss of connection between the external connected device and the gateway, and further affecting the stability of the operation of the external connected device.

[0042] Embodiment 2: On the basis of Embodiment 1, combined with Figure 2 and Figures 7-9 As shown, it further includes chute frames 17 symmetrically distributed up and down. The symmetrically distributed chute frames 17 are fixedly connected to the front side of the gateway housing 1. A sliding frame 18 is connected in the chute frame 17 in a limited sliding manner. A connecting rod 19 is slidably connected between the sliding frames 18 symmetrically distributed up and down. An elastic member is fixedly connected between the sliding frame 18 and the connecting rod 19. The elastic member is a compression spring. A clamping frame 20 is connected in the sliding frame 18 in a limited sliding manner. An elastic member is fixedly connected between the sliding frame 18 and the adjacent clamping frame 20. The elastic member is a compression spring. The opposite sides of the two clamping frames 20 are both provided with inclined surfaces. The two symmetrically distributed clamping frames 20 are in contact and cooperate with each other. The inclined surface is used to enable the wire to pass through the two clamping frames 20 smoothly and enter between the two sliding frames 18. The distance between the symmetrically distributed chute frames 17 gradually decreases from left to right, and is used to gradually clamp the wire when the two sliding frames 18 move to the right.

[0043] Combined with Figures 7-9As shown, a first hydraulic telescopic rod 21 is fixedly connected to the front side of the gateway housing 1. The telescopic end of the first hydraulic telescopic rod 21 is fixedly connected to a first clamping plate 22. An electromagnetic slider fixedly connected to the first clamping plate 22 is slidably connected to the gateway housing 1 through an electromagnetic slide rail. The electromagnetic slider is electrically connected to the control panel. A second clamping plate 23 is slidably connected to the first clamping plate 22. An elastic member is fixedly connected between the first clamping plate 22 and the second clamping plate 23. The elastic member is a tension spring. The sliding frame 18 is in limit fit with the second clamping plate 23 and in extrusion fit with the first clamping plate 22. When the first clamping plate 22 moves to the right, the first clamping plate 22 squeezes the two sliding frames 18 to move to the right. When the first clamping plate 22 moves to the left, the first clamping plate 22 first drives the elastic member of the second clamping plate 23 to stretch, and then drives the second clamping plate 23 to move to the left. The second clamping plate 23 drives the two sliding frames 18 to move to the left.

[0044] Combined with Figure 10 and Figure 11 As shown, a second hydraulic telescopic rod 24 is fixedly connected to the gateway housing 1. The second hydraulic telescopic rod 24 is communicated with the first hydraulic telescopic rod 21 through a conduit. The telescopic end of the second hydraulic telescopic rod 24 is fixedly connected to a limit frame 25. The limit frame 25 is slidably connected to the gateway housing 1. The shape of the limit frame 25 is approximately C-shaped, and the limit frame 25 is located on the lower side of the gateway housing 1. A number of limit rods 26 arranged in a linear array and symmetrically distributed are fixedly connected to the limit frame 25. The number of the limit rods 26 is twice the number of the communication interfaces on the gateway housing 1.

[0045] In the initial state, after the wire is inserted into adjacent communication interfaces on the gateway housing 1, the limit rod 26 is located on the right side of the adjacent communication interfaces on the gateway housing 1, and is used to block the wire inserted at the communication interfaces on the gateway housing 1 to prevent the wire from being pulled out of the adjacent communication interfaces.

[0046] When the operator inserts several wires into different communication interfaces on the right side of the gateway housing 1 respectively, the operator squeezes the two clamping frames 20 through the wires. The clamping frames 20 move and drive their elastic members to stretch, so that the two clamping frames 20 move away from each other. When the wires pass through the two clamping frames 20, the elastic members of the clamping frames 20 rebound and drive them to reset, so that all the wires are clamped between the two clamping frames 20 and the two sliding frames 18, avoiding the wires from being wound around each other at the gateway housing 1. When the gateway housing 1 falls or the wires are accidentally touched and pulled out of the communication interfaces, the wires rely on the friction force to pull the two sliding frames 18 to move to the right. The sliding frames 18 move to the right along the adjacent chute frames 17 (during the process of the sliding frames 18 moving to the right, the two sliding frames 18 jointly drive the second clamping plate 23 to move to the right, and the elastic member of the second clamping plate 23 is gradually stretched). The two sliding frames 18 move towards each other to clamp the wires, and the two elastic members of the connecting rod 19 are gradually stretched, preventing the wires from being pulled out due to accidental touch and causing the disconnection of the network card connection, thereby affecting the stability of the external connection device.

[0047] When an operator needs to disconnect the connection between the communication interface on the gateway housing 1 and the adjacent electric wire, the operator needs to control the electromagnetic slider on the first clamping plate 22 to move leftward through the control terminal, so that while the first clamping plate 22 moves leftward, it drives the telescopic end of the first hydraulic expansion link 21 to contract. The first clamping plate 22 moves leftward and stretches the elastic member of the second clamping plate 23. When the elastic member of the second clamping plate 23 is stretched to the limit position, the first clamping plate 22 drives the second clamping plate 23 to move leftward through the elastic member of the second clamping plate 23. The second clamping plate 23 drives the two sliding frames 18 to move leftward. The sliding frames 18 move leftward along the adjacent chute frames 17, and the two sliding frames 18 move away from each other, so that the two elastic members of the connecting rod 19 are gradually compressed, and the two sliding frames 18 lose the clamping force on the cable.

[0048] During the process of the telescopic end of the first hydraulic expansion link 21 contracting, the hydraulic oil in the first hydraulic expansion link 21 flows along the conduit into the second hydraulic expansion link 24, so that the telescopic end of the second hydraulic expansion link 24 extends and drives the limiting frame 25 to move downward. The limiting frame 25 drives several limiting rods 26 thereon to move downward. The limiting rods 26 gradually move away from the adjacent communication interfaces on the gateway housing 1, so that the wire end can be pulled out from the adjacent communication interfaces on the gateway housing 1. Through the above steps, the wire is prevented from being directly pulled out, thereby preventing external personnel from maliciously disconnecting the connection between the gateway housing 1 and the wire, and further increasing the connection stability between the gateway housing 1 and the wire.

[0049] When the operator needs to insert the wire back into the adjacent communication interface on the gateway housing 1 again, the operator repeats the above steps to place the wire between the two sliding frames 18, and then controls the electromagnetic slider of the first clamping plate 22 to move rightward to reset through the control terminal, so that the first clamping plate 22 moves rightward and drives the telescopic end of the first hydraulic expansion link 21 to extend and reset. And the first clamping plate 22 drives the second clamping plate 23 to move rightward, so that the elastic member of the second clamping plate 23 contracts and resets. The first clamping plate 22 pushes the two sliding frames 18 to move rightward along the adjacent chute frames 17 respectively, and the two sliding frames 18 gradually clamp the wire. And at this time, the hydraulic oil in the second hydraulic expansion link 24 is pumped back into the first hydraulic expansion link 21 through the conduit. The telescopic end of the second hydraulic expansion link 24 contracts and resets and drives the limiting frame 25 to move upward. The limiting frame 25 drives all the limiting rods 26 to move upward and reset. The limiting rods 26 move to align with the adjacent communication interfaces on the gateway housing 1, and the limiting rods 26 block the detachment of the adjacent wire ends, avoiding the disconnection of the wire from the gateway housing 1 caused by external personnel's accidental touch or malicious touch.

[0050] Embodiment 3: On the basis of Embodiment 2, combined with Figure 1 with Figure 11As shown, it further includes a flexible block 27, which is fixedly connected between the gateway housing 1 and the limiting frame 25. When the limiting frame 25 moves up and down, the flexible block 27 will deform to buffer the gateway housing 1. At the position of the gateway housing 1 close to the flexible block 27, there are symmetrically distributed heavy blocks 28 in the front and back directions.

[0051] Combined Figure 1 with Figure 11 As shown, at the upper part of the front side of the gateway housing 1, there is a fixed stop block 29. The thicknesses of the front heavy block 28 and the stop block 29 are both greater than the thickness of the bellows 2, which is used to prevent the bellows 2 from contacting the ground when the front side of the gateway housing 1 contacts and collides with the ground.

[0052] When the gateway housing 1 falls, due to the influence of the two heavy blocks 28, the lower side of the gateway housing 1 first contacts the ground. The limiting frame 25 collides with the ground and moves upward, causing the flexible block 27 to be compressed and deformed. And the limiting frame 25 squeezes the telescopic end of the second hydraulic telescopic rod 24 to move upward. The hydraulic oil in the second hydraulic telescopic rod 24 is compressed and flows through the conduit into the first hydraulic telescopic rod 21. The hydraulic oil in the second hydraulic telescopic rod 24 buffers the movement of the limiting frame 25. The telescopic end of the first hydraulic telescopic rod 21 extends and drives the two sliding frames 18 to move rightward along the adjacent chute frames 17 respectively through the first clamping plate 22. The two sliding frames 18 gradually clamp the wire. While buffering the fall of the gateway housing 1, it prevents the wire from detaching from the gateway housing 1 and causing the disconnection of the connection of the external connection device, thereby affecting the operation of the external device.

[0053] When the gateway housing 1 falls, if the gateway housing 1 topples forward, the stop block 29 and the front heavy block 28 will first contact the ground, preventing the bellows 2 from contacting the ground and damaging the internal parts thereof, and protecting parts such as the fan 5.

[0054] In summary, the invention includes but is not limited to the above embodiments. Any equivalent replacement or partial improvement carried out under the spirit and principle of the present invention will be regarded as within the protection scope of the present invention.

Claims

1. An industrial intelligent gateway device based on a programmable logic controller (PLC), comprising a gateway housing (1), a bellows (2) fixedly connected to the gateway housing (1), a first fixing plate (3) fixedly connected to one side of the gateway housing (1) close to the bellows (2), a first filter plate (301) installed on the first fixing plate (3), a motor (4) fixedly connected to one side of the first filter plate (301) close to the bellows (2), and a fan blade (5) fixedly connected to the output shaft of the motor (4) and rotatably connected to the bellows (2). It is characterized in that, It further includes a rotating ring (6) located inside the bellows (2). The rotating ring (6) is rotatably connected to the output shaft of the motor (4). A torsion spring is fixedly connected between the output shaft of the motor (4) and the rotating ring (6). Fixing brackets (7) evenly distributed circumferentially are fixedly connected to the rotating ring (6). A sliding rod (8) is slidably connected inside the fixing bracket (7). An elastic member is fixedly connected between the fixing bracket (7) and the adjacent sliding rod (8). A first wedge block (9) is fixedly connected to the side of the sliding rod (8) away from the rotating ring (6). A second fixing plate (10) is fixedly connected to the bellows (2) near the first wedge blocks (9) evenly distributed circumferentially. Second wedge blocks (11) evenly distributed circumferentially and in extrusion fit with all the first wedge blocks (9) are fixedly connected to the second fixing plate (10). A cleaning plate (12) is fixedly connected to the side of the sliding rod (8) close to the first filter plate (301). It further includes symmetrically distributed chute frames (17). The symmetrically distributed chute frames (17) are fixedly connected to one side of the gateway housing (1) close to the bellows (2). A sliding frame (18) is slidably connected in the chute frame (17) in a limited manner. A connecting rod (19) is slidably connected between the symmetrically distributed sliding frames (18). An elastic member is fixedly connected between the sliding frame (18) and the connecting rod (19). A clamping frame (20) is slidably connected in a limited manner to the sliding frame (18). An elastic member is fixedly connected between the sliding frame (18) and the adjacent clamping frame (20). An inclined surface is provided on the side of the clamping frame (20) away from the adjacent connecting rod (19). The symmetrically distributed clamping frames (20) are in contact and cooperate with each other. The distance between the symmetrically distributed chute frames (17) gradually decreases from the position away from the connecting rod (19) to the position close to the connecting rod (19). A first hydraulic telescopic rod (21) is fixedly connected to one side of the gateway housing (1) close to the bellows (2). The telescopic end of the first hydraulic telescopic rod (21) is fixedly connected to a first clamping plate (22). An electromagnetic slider fixedly connected to the first clamping plate (22) is slidably connected to the gateway housing (1) through an electromagnetic slide rail. A second clamping plate (23) is slidably connected to the first clamping plate (22). An elastic member is fixedly connected between the first clamping plate (22) and the second clamping plate (23). The sliding frame (18) is in limited cooperation with the second clamping plate (23), and the sliding frame (18) is in extrusion fit with the first clamping plate (22). A second hydraulic telescopic rod (24) is fixedly connected to the gateway housing (1). The second hydraulic telescopic rod (24) is communicated with the first hydraulic telescopic rod (21) through a conduit. The telescopic end of the second hydraulic telescopic rod (24) is fixedly connected to a limiting frame (25). The limiting frame (25) is slidably connected to the gateway housing (1). Limiting rods (26) arranged in a linear array and symmetrically distributed are fixedly connected to the limiting frame (25).

2. The industrial intelligent gateway device based on PLC according to claim 1, characterized in that, The elastic force of the elastic member on the fixing bracket (7) is greater than the torsion force of the torsion spring on the rotating ring (6).

3. The industrial intelligent gateway device based on PLC according to claim 1 is characterized in that, The first filter plate (301) is provided with inclined sieve plates distributed circumferentially, and one side of the inclined sieve plates on the first filter plate (301) close to the fan blade (5) is attached to the cleaning plate (12).

4. The industrial intelligent gateway device based on PLC according to claim 3, characterized in that, A scraper (13) is fixedly connected to the first filter plate (301). The scraper (13) is provided with arc-shaped tooth brushes distributed linearly. There are gaps between adjacent arc-shaped tooth brushes on the scraper (13). A collection channel (14) is arranged at a position on the gateway housing (1) close to the scraper (13). The gaps on the scraper (13) are communicated with the collection channel (14). A collection shell (15) is detachably connected to the position on the gateway housing (1) close to the collection channel (14). The collection shell (15) is communicated with the collection channel (14). A second filter plate (16) is installed on the collection shell (15).

5. The industrial intelligent gateway device based on PLC according to claim 4, characterized in that It further includes a flexible block (27). The flexible block (27) is fixedly connected between the gateway housing (1) and the limiting frame (25). Symmetrically distributed heavy blocks (28) are fixedly connected to the gateway housing (1) close to the flexible block (27).

6. The industrial intelligent gateway device based on PLC according to claim 5, characterized in that, A stop block (29) is fixedly connected to one side of the gateway housing (1) close to the air box (2). The thicknesses of the heavy block (28) and the stop block (29) on the side close to the air box (2) are both greater than the thickness of the air box (2).

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