Wiring structure of PLC (Programmable Logic Controller)

Abstract

The utility model discloses a wiring structure of a PLC controller, which comprises a PLC controller body, two sides of the outer wall of the top of the PLC controller body are provided with installation grooves, the outer wall of the top of each installation groove is provided with limiting grooves distributed at equal intervals, and the wiring structure of the PLC controller also comprises a guiding mechanism used for guiding a wiring terminal; a limiting ring is arranged on the inner wall, close to the top, of the limiting groove, a connecting rod is arranged on the inner wall of the limiting ring, a lifting cap is connected to the top end of the connecting rod, a connecting table is arranged at the bottom end of the connecting rod, a first extrusion pad is arranged on the outer wall of the bottom of the connecting table, and a first reset spring is arranged on the outer wall of the circumference of the connecting rod. The wiring structure of the PLC disclosed by the utility model has the technical effects that the lifting cap is matched with the first reset spring to fix the wiring terminal, the wiring terminal can be fixed at multiple points, the wiring structure is simple to lead in, stable to fix and convenient to operate, manual repeated rotation work is not needed, and the wiring efficiency is higher.

Description

Technical Field

[0001] This utility model relates to the field of PLC controller technology, and in particular to the wiring structure of PLC controllers. Background Technology

[0002] A PLC controller is a special type of industrial control computer that uses an internal central processing unit (CPU) to process external switching signals, digital signals, analog signals, etc., to achieve automated control of production processes and machinery.

[0003] Patent application number 202223335376.7 discloses a PLC controller that is easy to wire, including a main shell, which is designed as a cuboid structure, with a special connecting square groove at the top of the main shell, an output component located at the top of the main shell, a cover component located at the top of the main shell, which has several groups arranged in two symmetrical rows, and a connecting component located inside the main shell, with a cover component at the top of the connecting component.

[0004] However, the wiring structure of traditional PLC controllers requires the use of a screwdriver to rotate and install multiple nuts to tighten the connection of the terminals. This process is cumbersome, labor-intensive, and not conducive to repeated manual operation, resulting in low wiring efficiency. Utility Model Content

[0005] This utility model discloses a wiring structure for a PLC controller, aiming to solve the technical problem that the traditional wiring structure of a PLC controller requires the use of a screwdriver to rotate and install multiple nuts to tighten the wiring terminals, which is a cumbersome process with a large workload, is not conducive to repetitive manual operation, and has low wiring efficiency.

[0006] To achieve the above objectives, the present invention adopts the following technical solution:

[0007] The wiring structure of the PLC controller includes the PLC controller body, on both sides of the top outer wall of the PLC controller body, and equally spaced limiting slots on the top outer wall of the mounting slots. It also includes:

[0008] Guiding mechanism: Used to guide the wiring terminals;

[0009] A limiting ring is provided on the inner wall of the limiting groove near the top. A connecting rod is provided on the inner wall of the limiting ring. A lifting cap is connected to the top of the connecting rod. A connecting platform is provided at the bottom of the connecting rod. A first compression pad is provided on the bottom outer wall of the connecting platform. A first return spring is provided on the circumferential outer wall of the connecting rod. The first return spring is located between the limiting ring and the connecting platform. An auxiliary mechanism is provided on one side outer wall of the connecting platform.

[0010] In this solution, by lifting the lifting cap, the terminal block is guided into the limiting groove by the guiding mechanism. When the lifting cap is lifted, it compresses the first return spring. After the lifting cap is lowered, the first return spring returns to its original position, causing the connecting rod to move downward within the limiting ring. This causes the first pressing pad on the connecting platform to press and fix the terminal block, ensuring a tight fixation. The operation is simple and eliminates the need for repeated screwing. According to the wiring diagram, the lifting cap can be selectively lifted and then pressed to tighten the terminal block, resulting in higher wiring efficiency.

[0011] In a preferred embodiment, the guiding mechanism includes a plurality of wire loops respectively disposed on the outer walls of both sides of the PLC controller body. A plurality of wire holes are formed on the outer wall of the PLC controller body near the wire loops. The wire holes are connected to the limiting groove. Two fixing grooves are formed on the bottom inner wall of the limiting groove. Mounting rods are provided on the inner wall of the fixing grooves. The top ends of the two mounting rods are provided with the same placement platform. A second return spring is provided on the outer circumference of the mounting rod. The top end of the second return spring is connected to the placement platform. A pole piece is provided on the inner wall of the placement platform. An adapter hole is formed on one side of the outer wall of the placement platform.

[0012] Using the above technical solution, the terminal is introduced into the wire ring position. Under the action of the second return spring, the position of the placement platform is limited, so that the adapter hole of the placement platform is aligned with the wire hole position. The terminal is then introduced into the adapter hole position through the wire hole, so that the wire of the terminal and the electrode contact each other. Then, it is squeezed and fixed by the first compression pad to achieve the wiring function. The alignment is convenient and the fit is good.

[0013] In a preferred embodiment, the auxiliary mechanism includes several adapter slots on the inner wall of the PLC controller body, the adapter slots being connected to the limiting slots and the wire holes respectively, a connecting block being provided on one outer wall of the connecting platform, two fixing rods being provided on the bottom outer wall of the connecting block, the bottom end of the fixing rods being connected to a second compression pad, and the connecting block being located inside the adapter slots.

[0014] Using the above technical solution, when the first pressing pad presses and fixes the terminal block, the connecting platform moves downward and drives the connecting block to move downward, so that the second pressing pad on the connecting block presses and fixes the terminal block in the wire hole, so that the terminal block is fixed at multiple points, and the auxiliary cooperation makes the fixing effect better.

[0015] As can be seen from the above, the wiring structure of the PLC controller includes the PLC controller body, on both sides of the top outer wall of the PLC controller body, mounting grooves are formed, and the top outer wall of the mounting grooves has equally spaced limiting grooves. It also includes:

[0016] Guiding mechanism: Used to guide the wiring terminals;

[0017] A limiting ring is provided on the inner wall of the limiting groove near the top. A connecting rod is provided on the inner wall of the limiting ring. A lifting cap is connected to the top of the connecting rod, and a connecting platform is provided at the bottom of the connecting rod. A first compression pad is provided on the bottom outer wall of the connecting platform, and a first return spring is provided on the circumferential outer wall of the connecting rod. The first return spring is located between the limiting ring and the connecting platform. An auxiliary mechanism is provided on one side of the outer wall of the connecting platform. The wiring structure of the PLC controller provided by this utility model has the technical advantages of using the lifting cap and the first return spring to fix the wiring terminals, which can fix the wiring terminals at multiple points, making the connection simple, the fixation stable, the operation convenient, and eliminating the need for repeated manual rotation, thus improving wiring efficiency. Attached Figure Description

[0018] Figure 1 This is a schematic diagram of the overall wiring structure of the PLC controller proposed in this utility model.

[0019] Figure 2 This is an enlarged view of the lifting cap structure of the wiring structure of the PLC controller proposed in this utility model.

[0020] Figure 3 This is a schematic diagram of the first compression pad structure of the wiring structure of the PLC controller proposed in this utility model.

[0021] In the attached diagram: 1. PLC controller body; 2. Indicator light; 3. Mounting slot; 4. Wire ring; 5. Lifting cap; 6. Connecting rod; 7. Limiting slot; 8. Adapter slot; 9. Wire hole; 10. First return spring; 11. Connecting platform; 12. First compression pad; 13. Placement platform; 14. Electrode; 15. Mounting rod; 16. Second return spring; 17. Adapter hole; 18. Limiting ring; 19. Connecting block; 20. Second compression pad. Detailed Implementation

[0022] The technical solutions of the embodiments of this application will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this application, and not all embodiments. The components of the embodiments of this application described and marked in the accompanying drawings can be arranged and designed in various different configurations. Therefore, the following detailed description of the embodiments of this application provided in the accompanying drawings is not intended to limit the scope of the claimed application, but merely represents selected embodiments of this application. All other embodiments obtained by those skilled in the art based on the embodiments of this application without inventive effort are within the scope of protection of this application.

[0023] The wiring structure of the PLC controller disclosed in this utility model is mainly applied to scenarios where the wiring structure of the traditional PLC controller requires the use of a screwdriver to rotate and install multiple nuts to tighten the connection of the wiring terminals. This process is cumbersome, labor-intensive, not conducive to repetitive manual operation, and has low wiring efficiency.

[0024] Reference Figure 1 , Figure 2 and Figure 3 The wiring structure of the PLC controller includes the PLC controller body 1, with mounting grooves 3 on both sides of the top outer wall of the PLC controller body 1, and equidistant limiting grooves 7 on the top outer wall of the mounting grooves 3, and also includes:

[0025] Guiding mechanism: Used to guide the wiring terminals;

[0026] A limiting ring 18 is fixedly connected to the inner wall of the limiting groove 7 near the top. A connecting rod 6 is slidably connected to the inner wall of the limiting ring 18. A lifting cap 5 is fixedly connected to the top of the connecting rod 6. A connecting platform 11 is provided at the bottom of the connecting rod 6. A first compression pad 12 is provided on the bottom outer wall of the connecting platform 11. A first return spring 10 is provided on the circumferential outer wall of the connecting rod 6. The first return spring 10 is located between the limiting ring 18 and the connecting platform 11. An auxiliary mechanism is provided on one side outer wall of the connecting platform 11.

[0027] In the specific working process, there are multiple limiting slots 7 on both sides of the PLC controller body 1. The limiting slots 7 correspond to the positions of the guiding mechanism. When the wiring position is reached, the corresponding lifting cap 5 is lifted, and the wiring terminal is guided into the interior of the limiting slot 7 through the guiding mechanism. When the lifting cap 5 is lifted, it will compress the first return spring 10. After the lifting cap 5 is put down, the first return spring 10 returns to its original position, causing the connecting rod 6 to move downward within the limiting ring 18. The limiting ring 18 limits the lifting cap 5. The limiting ring 18 is fixedly connected to the limiting slot 7 and is flush with the mounting slot 3. During the downward movement, the first pressing pad 12 on the connecting table 11 presses and fixes the plug terminal, making the wiring terminal tightly fixed without repeated screwing. According to the wiring diagram, the lifting cap 5 can be selectively lifted and then pressed to tighten the wiring terminal.

[0028] The bottom outer wall of the first compression pad 12 is provided with interlaced textures. In this way, the interlaced textures increase the friction of the first compression pad 12, making the first compression pad 12 in close contact with the terminal block and fixing it more stably.

[0029] Reference Figure 1 and Figure 2 In a preferred embodiment, the guiding mechanism includes a plurality of wire loops 4 respectively disposed on the outer walls of both sides of the PLC controller body 1. A plurality of wire holes 9 are opened on the outer wall of the PLC controller body 1 near the wire loops 4. The wire holes 9 are connected to the limiting grooves 7. Two fixing grooves are opened on the bottom inner wall of the limiting grooves 7. Mounting rods 15 are provided on the inner wall of the fixing grooves. The top ends of the two mounting rods 15 are fixedly connected to the same placement platform 13. A second return spring 16 is provided on the outer circumference of the mounting rods 15. The top end of the second return spring 16 is connected to the placement platform 13. A pole piece 14 is provided on the inner wall of the placement platform 13. An adapter hole 17 is opened on one side of the outer wall of the placement platform 13.

[0030] Specifically, the terminal is inserted into the wire ring 4. Under the action of the second return spring 16, the position of the placement platform 13 is limited, so that the adapter hole 17 of the placement platform 13 is aligned with the wire hole 9. The terminal is then inserted through the wire hole 9 into the adapter hole 17, so that the wire of the terminal contacts the electrode 14 in the placement platform 13. The terminal is then pressed and fixed by the first compression pad 12, so that the terminal and the electrode 14 are connected.

[0031] The adapter hole 17 is positioned to correspond to the wire hole 9. This allows the terminal block to be better guided into the adapter hole 17 when it is inserted through the wire hole 9. The terminal block is then placed into the placement platform 13 through the adapter hole 17 and makes stable contact with the electrode plate 14, thus better securing the wiring.

[0032] The first compression pad 12 is adapted to the placement platform 13. When the first compression pad 12 and the placement platform 13 are pressed together, they fit together tightly, which makes the first compression pad 12 better fix the wiring terminals inside the placement platform 13. The tight contact makes the wiring terminals fixed and not easy to fall off, resulting in better wiring effect.

[0033] Reference Figure 2 and Figure 3 In a preferred embodiment, the auxiliary mechanism includes several adapter slots 8 on the inner wall of the PLC controller body 1. The adapter slots 8 are connected to the limiting slots 7 and the wire holes 9 respectively. A connecting block 19 is fixedly connected to one side of the outer wall of the connecting platform 11. Two fixing rods are fixedly connected to the bottom outer wall of the connecting block 19. A second compression pad 20 is fixedly connected to the bottom end of the fixing rod. The connecting block 19 is located inside the adapter slots 8.

[0034] Specifically, when the first compression pad 12 compresses and fixes the terminal block, the connecting platform 11 moves downward and drives the connecting block 19 to move downward, so that the second compression pad 20 on the connecting block 19 compresses and fixes the terminal block in the wire hole 9, assisting in the fixation and fixing the terminal block at multiple points.

[0035] The first compression pad 12 and the second compression pad 20 are both made of rubber. The first compression pad 12 and the second compression pad 20 are used together. In this way, the first compression pad 12 and the second compression pad 20 made of rubber can be deformed, which has an insulating effect. While increasing the friction, they also have good safety performance, so that the first compression pad 12 and the second compression pad 20 can fix the terminal block, making it safer.

[0036] Reference Figure 1 In a preferred embodiment, three indicator lights 2 are provided on one side of the top outer wall of the PLC controller body 1.

[0037] Specifically, the three indicator lights 2, from top to bottom, are the fault light, the running light, and the stop light. By observing the three indicator lights 2, the operation process of the PLC controller body 1 can be judged, so as to better protect and stop the operation.

[0038] Working principle: During use, lift the corresponding lifting cap 5 according to the required wiring position, and insert the terminal into the wire ring 4. The placement platform 13 is limited by the second return spring 16, so that the adapter hole 17 of the placement platform 13 is aligned with the wire hole 9. After the terminal is inserted into the adapter hole 17 through the wire hole 9, the wire of the terminal comes into contact with the pole piece 14 in the placement platform 13. Then, lower the lifting cap 5, and the lifting cap 5 lifts the compressed first return spring 10, which then resets, causing the connecting rod 6 to move downward in the limiting ring 18. This causes the first pressing pad 12 on the connecting platform 11 to press and fix the plug terminal inside the placement platform 13, making the terminal and the pole piece 14 tightly fixed. As the connecting platform 11 moves downward, it also drives the connecting block 19 to move downward, causing the second pressing pad 20 on the connecting block 19 to press and fix the terminal in the wire hole 9, thus fixing the terminal at multiple points. The operation process of the PLC controller body 1 can be judged by observing the three indicator lights 2 on the PLC controller body 1.

[0039] The above description is merely a preferred embodiment of this utility model, but the protection scope of this utility model is not limited thereto. The substitutions may be replacements of some structures, devices, or method steps, or they may be complete technical solutions. Equivalent substitutions or modifications made based on the technical solution and inventive concept of this utility model should all be covered within the protection scope of this utility model.

Claims

1. A wiring structure for a PLC controller, comprising a PLC controller body (1), wherein mounting grooves (3) are formed on both sides of the top outer wall of the PLC controller body (1), and equidistant limiting grooves (7) are formed on the top outer wall of the mounting grooves (3), characterized in that, Also includes: Guiding mechanism: Used to guide the wiring terminals; The limiting groove (7) has a limiting ring (18) on its inner wall near the top. The limiting ring (18) has a connecting rod (6) on its inner wall. The top of the connecting rod (6) is connected to a lifting cap (5). The bottom of the connecting rod (6) has a connecting platform (11). The bottom outer wall of the connecting platform (11) has a first compression pad (12). The outer circumferential wall of the connecting rod (6) has a first return spring (10). The first return spring (10) is located between the limiting ring (18) and the connecting platform (11). The outer wall of one side of the connecting platform (11) has an auxiliary mechanism. The bottom outer wall of the first extrusion pad (12) is provided with interlaced patterns; The guiding mechanism includes several wire loops (4) respectively provided on the outer walls of both sides of the PLC controller body (1). Several wire holes (9) are opened on the outer wall of the PLC controller body (1) near the wire loops (4). The wire holes (9) are connected to the limiting groove (7). Two fixing grooves are opened on the bottom inner wall of the limiting groove (7). The fixing groove is provided with mounting rods (15) on the inner wall. The top of the two mounting rods (15) is provided with the same placement platform (13). The outer circumference of the mounting rod (15) is provided with a second return spring (16). The top of the second return spring (16) is connected to the placement platform (13). The inner wall of the placement platform (13) is provided with a pole piece (14). The outer wall of one side of the placement platform (13) is provided with an adapter hole (17). The auxiliary mechanism includes several adapter slots (8) on the inner wall of the PLC controller body (1). The adapter slots (8) are connected to the limiting slots (7) and the wire holes (9) respectively. A connecting block (19) is provided on one side of the outer wall of the connecting platform (11). Two fixing rods are provided on the bottom outer wall of the connecting block (19). The bottom end of the fixing rod is connected to a second compression pad (20). The connecting block (19) is located inside the adapter slots (8).

2. The wiring structure of the PLC controller according to claim 1, characterized in that, The adapter hole (17) corresponds to the position of the wire hole (9).

3. The wiring structure of the PLC controller according to claim 1, characterized in that, The first compression pad (12) is adapted to the placement platform (13).

4. The wiring structure of the PLC controller according to claim 1, characterized in that, Both the first extrusion pad (12) and the second extrusion pad (20) are made of rubber, and the first extrusion pad (12) and the second extrusion pad (20) are used together.

5. The wiring structure of the PLC controller according to claim 1, characterized in that, The PLC controller body (1) has three indicator lights (2) on one side of the top outer wall.

Images