A DCS system anti-interference signal isolator

Abstract

The utility model relates to DCS system technical field, concretely is a kind of DCS system anti-interference signal isolator, including isolator main part, the rear end of isolator main part is provided with mounting bracket, the inside of mounting bracket top and bottom end is all provided with movable slot, the inside of movable slot that mounting bracket top and bottom end are provided is separately provided with first fixed frame and second fixed frame, the utility model is pulled first fixed frame and second fixed frame clamping guide rail by the force of second limiting spring reset, isolator main part is installed to guide rail, can more conveniently and flexibly install and disassemble, and by second limiting spring and first fixed frame and second fixed frame, can adjust the clamping slot clamping distance according to the guide rail of different width, to improve the practicability of isolator main part, to facilitate people use and operation.

Description

Technical Field

[0001] This utility model relates to the field of DCS system technology, specifically to a DCS system anti-interference signal isolator. Background Technology

[0002] A DCS (Distributed Control System) is a computer-controlled system used for industrial process automation control, widely applied in industries such as petrochemicals, power, metallurgy, and pharmaceuticals. Its core characteristics are distributed control and centralized management. Through the collaborative work of multiple control nodes, it achieves efficient monitoring and optimization of complex production processes. In industrial automation control systems, the anti-interference capability of a DCS directly affects production stability and data reliability. DCS anti-interference signal isolators are key devices in industrial automation control systems used to eliminate signal interference and ensure transmission accuracy, especially acting as a "signal firewall" in distributed control systems (DCS).

[0003] There are many types of existing DCS system interference suppression signal isolators. When installing DCS system interference suppression signal isolators, they are usually mounted on DIN rails. Because the mounting structure of the isolators is relatively fixed, they are typically installed using DIN rails that are compatible with their dimensions. This makes it inconvenient to adjust the mounting structure of the isolator for different DIN rails. Furthermore, installing the power cable for the isolator is complex and inefficient. Therefore, we provide a DCS system interference suppression signal isolator. Utility Model Content

[0004] The purpose of this invention is to provide an anti-interference signal isolator for DCS systems to solve the problems mentioned in the background art.

[0005] To achieve the above objectives, this utility model provides the following technical solution:

[0006] An anti-interference signal isolator for a DCS system includes an isolator body, a mounting frame is provided at the rear end of the isolator body, and movable slots are provided inside the top and bottom ends of the mounting frame. A first fixed frame and a second fixed frame are respectively provided inside the movable slots at the top and bottom ends of the mounting frame.

[0007] Preferably, the mounting bracket has four fixed sliding rods inserted inside, and one end of the first and second fixing brackets has fixing holes of appropriate size corresponding to the two ends of the four fixed sliding rods.

[0008] Preferably, the first fixing frame and the second fixing frame are slidably connected to the mounting frame through fixing holes and fixing slide rods.

[0009] Preferably, a second limiting spring is fitted on the outer side of both ends of the four fixed sliding rods, and the two ends of the second limiting spring are fixedly connected to the first fixed frame, the second fixed frame and the mounting frame respectively.

[0010] Preferably, the front end of the isolator body is provided with a plurality of mounting slots symmetrically, and the front end of the isolator body is provided with a wire groove at the bottom side of the front end of the mounting slot.

[0011] Preferably, the mounting groove is provided with a pressure plate adapted to its size, a gasket is glued to the bottom of the pressure plate, a screw is passed through the middle of the pressure plate, and the bottom end of the screw passes through the pressure plate and the gasket and is movably connected to the isolator body.

[0012] Preferably, a rotating handle is fixedly connected to the top of the screw, and a first limiting spring is sleeved on the outer side of the top end of the screw, with the two ends of the first limiting spring contacting the pressure plate and the rotating handle, respectively.

[0013] Preferably, multiple heat dissipation holes are symmetrically provided on both sides of the isolator body, and slots are provided on both sides of the isolator body at one end of the inner side of the heat dissipation holes. A filter screen is provided inside the slot, and a handle is provided on one side of the filter screen.

[0014] Preferably, a limiting hole is provided on the top of one side of the filter screen, and limiting pins of the same size are provided on both sides of the isolator body at the positions corresponding to the limiting hole. A third limiting spring is sleeved on the outer side of the top of the limiting pin, and the two ends of the third limiting spring are fixedly connected to the limiting pin and the isolator body, respectively.

[0015] Preferably, graphite thermal pads are attached to the periphery inside the isolator body, and the graphite thermal pads are in contact with the outer shell of the isolator body.

[0016] The working principle and beneficial effects of this utility model are as follows:

[0017] This invention uses the force of the second limiting spring to pull the first and second fixing frames to clamp the guide rail, thus installing the isolator body onto the guide rail. This allows for more convenient and flexible installation and disassembly. Furthermore, the clamping distance can be adjusted according to guide rails of different widths using the second limiting spring, thereby improving the practicality of the isolator body and making it easier for people to use and operate.

[0018] This utility model allows one end of the power cord that needs to be installed and connected to the isolator body to pass through the wire groove into the installation groove. By rotating the handle, the rotation of the handle drives the screw to rotate, and the rotation of the screw drives the pressure plate to move downward through the installation groove. The downward movement of the pressure plate drives the gasket to move downward and make contact with the power cord, which facilitates the installation of the isolator body and the power cord and improves the efficiency of power cord plug-in installation, disassembly and maintenance. Attached Figure Description

[0019] Figure 1 This is a schematic diagram of the external structure of this utility model;

[0020] Figure 2 This is a schematic diagram of the pressure plate structure of this utility model;

[0021] Figure 3 This is a partial structural schematic diagram of the isolator body of this utility model;

[0022] Figure 4 This is a schematic diagram of the mounting bracket of this utility model.

[0023] In the diagram: 1. Isolator body; 2. Mounting slot; 3. Wire groove; 4. Pressure plate; 5. Gasket; 6. Screw; 7. Rotary handle; 8. First limit spring; 9. Mounting bracket; 10. First fixing bracket; 11. Second fixing bracket; 12. Fixing slide rod; 13. Second limit spring; 14. Heat dissipation hole; 15. Filter screen; 16. Limiting pin; 17. Third limit spring. Detailed Implementation

[0024] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. 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.

[0025] like Figure 1-4 As shown, a DCS system anti-interference signal isolator includes an isolator body 1. A mounting frame 9 is provided at the rear end of the isolator body 1. Movable slots are provided inside the top and bottom ends of the mounting frame 9. A first fixed frame 10 and a second fixed frame 11 are respectively provided inside the movable slots at the top and bottom ends of the mounting frame 9.

[0026] like Figure 1 and Figure 2 As shown, four fixed sliding rods 12 are inserted inside the mounting bracket 9. The first fixed bracket 10 and the second fixed bracket 11 have fixing holes of appropriate size at one end corresponding to the two ends of the four fixed sliding rods 12.

[0027] The first fixing frame 10 and the second fixing frame 11 are slidably connected to the mounting frame 9 through fixing holes and fixing slide rods 12;

[0028] The outer sides of both ends of the four fixed sliding rods 12 are fitted with second limiting springs 13, and the two ends of the second limiting springs 13 are fixedly connected to the first fixed frame 10, the second fixed frame 11 and the mounting frame 9 respectively.

[0029] In this embodiment, the first fixing frame 10 and the second fixing frame 11 are stretched to both sides. The first fixing frame 10 and the second fixing frame 11 are guided to move to both sides by the fixing slide rod 12. At the same time as the first fixing frame 10 and the second fixing frame 11 move to both sides, the second limiting spring 13 is stretched. The force of the second limiting spring 13 returning to its original position pulls the first fixing frame 10 and the second fixing frame 11 to clamp the guide rail, and the isolator body 1 is installed on the guide rail. This makes it easier and more flexible to install and disassemble. Moreover, the clamping distance of the clamping groove can be adjusted according to the guide rail of different widths by the second limiting spring 13 and the first fixing frame 10 and the second fixing frame 11, thereby improving the practicality of the isolator body 1 and making it easier for people to use and operate.

[0030] like Figure 3 As shown, multiple mounting slots 2 are symmetrically provided at the front end of the isolator body 1, and a wire groove 3 is provided at the bottom side of the front end of the mounting slot 2 at the front end of the isolator body 1.

[0031] The mounting slot 2 is equipped with a pressure plate 4 that is adapted to its size. A gasket 5 is glued to the bottom of the pressure plate 4. A screw 6 passes through the middle of the pressure plate 4. The bottom end of the screw 6 passes through the pressure plate 4 and the gasket 5 and is movably connected to the isolator body 1.

[0032] A rotating handle 7 is fixedly connected to the top of the screw 6. A first limiting spring 8 is sleeved on the outer side of the top of the screw 6. The two ends of the first limiting spring 8 are in contact with the pressure plate 4 and the rotating handle 7, respectively.

[0033] Multiple heat dissipation holes 14 are symmetrically opened on both sides of the isolator body 1. Slots are opened on both sides of the isolator body 1 at one end of the inner side of the heat dissipation holes 14. A filter screen plate 15 is installed inside the slot. A handle is provided on one side of the filter screen plate 15.

[0034] A limiting hole is provided on the top of one side of the filter screen plate 15. A limiting pin 16 with a matching size is provided on both sides of the isolator body 1 at the position corresponding to the limiting hole. A third limiting spring 17 is sleeved on the outer side of the top of the limiting pin 16. The two ends of the third limiting spring 17 are fixedly connected to the limiting pin 16 and the isolator body 1, respectively.

[0035] Graphite thermal pads are attached to the periphery inside the isolator body 1, and the graphite thermal pads are in contact with the outer shell of the isolator body 1.

[0036] In this embodiment, rotating the handle 7 causes the screw 6 to rotate, which in turn causes the pressure plate 4 to move upward through the mounting groove 2. One end of the power cord to be connected to the isolator body 1 is then passed through the wire groove 3 into the mounting groove 2. Rotating the handle 7 again causes the screw 6 to rotate, which in turn causes the pressure plate 4 to move downward through the mounting groove 2. The pressure plate 4 then moves the washer 5 downward to contact the power cord, facilitating installation of the isolator body 1 and the power cord, and improving the efficiency of power cord installation, disassembly, and maintenance. The first limiting spring 8, fitted on the outer side of the screw 6's top, pushes the handle 7 and pressure plate 4 towards both ends, increasing the friction between the pressure plate 4 and the screw 6 and preventing the pressure plate 4 from... The isolator body 1 is released, and the graphene thermal pad attached to the inner periphery of the isolator body 1 contacts the outer shell, which can quickly conduct the heat generated by the electrical components inside the isolator body 1 to the outside, thus cooling the inside of the isolator body 1. The multiple heat dissipation holes 14 on both sides of the isolator body 1 can exhaust the hot air inside the isolator body 1 to the outside. The filter screen 15 can filter the dust in the air. The operator can pull the limit pin 16 upward, and the limit pin 16 moves upward while stretching the third limit spring 17. The bottom end of the limit pin 16 moves upward and exits the limit hole. The filter screen 15 can be pulled out from one side of the slot by the handle, which is convenient for the installation and removal of the filter screen 15 and allows for the regular replacement and cleaning of the filter screen 15.

[0037] In summary, the working principle is as follows:

[0038] First, the first fixing bracket 10 and the second fixing bracket 11 are stretched to both sides. Guided by the fixing slide rod 12, the first fixing bracket 10 and the second fixing bracket 11 move to both sides. Simultaneously, the second limiting spring 13 is stretched, and the force of the second limiting spring 13 pulling the first fixing bracket 10 and the second fixing bracket 11 clamps the guide rail, thus installing the isolator body 1 onto the guide rail. This allows for more convenient and flexible installation and disassembly. Furthermore, the clamping distance can be adjusted according to guide rails of different widths using the second limiting spring 13 and the first fixing bracket 10 and the second fixing bracket 11, thereby improving the practicality of the isolator body 1 and facilitating user operation. Rotating the handle 7 causes the screw 6 to rotate, which in turn causes the pressure plate 4 to move upwards through the mounting groove 2. One end of the power cord to be connected to the isolator body 1 is then passed through the wire groove 3 and placed inside the mounting groove 2. Rotating the handle 7 again causes the screw 6 to rotate, which in turn causes the pressure plate 4 to move downwards through the mounting groove 2. The pressure plate 4 moves downward, causing the gasket 5 to contact the power cord and conduct electricity, facilitating the installation of the isolator body 1 and the power cord, and improving the efficiency of power cord installation, disassembly, and maintenance. The first limiting spring 8, sleeved on the outer side of the top of the screw 6, pushes the handle 7 and pressure plate 4 to both ends, increasing the friction between the pressure plate 4 and the screw 6 and preventing the pressure plate 4 from loosening. The graphene thermal pad attached to the inner periphery of the isolator body 1 contacts the outer shell, quickly transferring the heat generated by the internal electrical components of the isolator body 1 to the outside, thus protecting the isolator. The main body 1 is cooled inside. The hot air inside the isolator body 1 can be discharged to the outside through multiple heat dissipation holes 14 on both sides of the isolator body 1. The filter screen 15 can filter the dust in the air. The operator can pull the limit pin 16 upward. The limit pin 16 moves upward and stretches the third limit spring 17 at the same time. The bottom end of the limit pin 16 moves upward and exits the limit hole. The filter screen 15 can be pulled out from one side of the slot by the handle. This makes it easy to install and remove the filter screen 15 and replace and clean it regularly.

[0039] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A DCS system anti-interference signal isolator, comprising an isolator body (1), characterized in that: The rear end of the isolator body (1) is provided with a mounting frame (9). The top and bottom ends of the mounting frame (9) are provided with movable slots. The top and bottom ends of the mounting frame (9) are respectively provided with a first fixed frame (10) and a second fixed frame (11).

2. The DCS system anti-interference signal isolator according to claim 1, characterized in that: The mounting bracket (9) has four fixed sliding rods (12) inside. The first fixed bracket (10) and the second fixed bracket (11) have fixing holes of the same size at one end corresponding to the two ends of the four fixed sliding rods (12).

3. The DCS system anti-interference signal isolator according to claim 2, characterized in that: The first fixing frame (10) and the second fixing frame (11) are slidably connected to the mounting frame (9) through fixing holes and fixing slide rods (12).

4. The DCS system anti-interference signal isolator according to claim 3, characterized in that: The outer sides of both ends of the four fixed sliding rods (12) are fitted with second limiting springs (13), and the two ends of the second limiting springs (13) are fixedly connected to the first fixed frame (10), the second fixed frame (11) and the mounting frame (9) respectively.

5. The DCS system anti-interference signal isolator according to claim 1, characterized in that: The front end of the isolator body (1) is symmetrically provided with multiple mounting slots (2), and the front end of the isolator body (1) is provided with a wire groove (3) located at the bottom side of the front end of the mounting slot (2).

6. The DCS system anti-interference signal isolator according to claim 5, characterized in that: The mounting groove (2) is provided with a pressure plate (4) that is adapted to its size. A gasket (5) is glued to the bottom of the pressure plate (4). A screw (6) is passed through the middle of the pressure plate (4). The bottom end of the screw (6) passes through the pressure plate (4) and the gasket (5) and is movably connected to the isolator body (1).

7. The DCS system anti-interference signal isolator according to claim 6, characterized in that: The top of the screw (6) is fixedly connected to a handle (7), and a first limiting spring (8) is sleeved on the outer side of the top of the screw (6). The two ends of the first limiting spring (8) are in contact with the pressure plate (4) and the handle (7) respectively.

8. The DCS system anti-interference signal isolator according to claim 1, characterized in that: The isolator body (1) has multiple heat dissipation holes (14) symmetrically opened on both sides. The isolator body (1) has slots at one end of the heat dissipation holes (14) on both sides. A filter screen plate (15) is installed inside the slot. A handle is provided on one side of the filter screen plate (15).

9. The DCS system anti-interference signal isolator according to claim 8, characterized in that: The filter screen (15) has a limiting hole on one side top. The two sides of the isolator body (1) are provided with limiting pins (16) that are adapted to its size at the corresponding positions of the limiting hole. A third limiting spring (17) is sleeved on the outer side of the top of the limiting pin (16). The two ends of the third limiting spring (17) are fixedly connected to the limiting pin (16) and the isolator body (1) respectively.

10. The DCS system anti-interference signal isolator according to claim 8, characterized in that: Graphite thermal pads are attached to the periphery inside the isolator body (1), and the graphite thermal pads are in contact with the outer shell of the isolator body (1).

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