PLC (Programmable Logic Controller) key protection structure with mistaken touch prevention function

Abstract

The utility model relates to the technical field of control, and discloses a PLC controller button protection structure with a mistaken touch prevention function, which comprises a controller body, a protection mechanism is arranged at the top of the controller body, the protection mechanism comprises a sliding seat, a T-shaped plate is slidably connected inside the sliding seat, a baffle is fixedly connected outside the T-shaped plate, and the baffle is arranged on the top of the controller body. A sliding rod is fixedly connected to the outer portion of the T-shaped plate, the outer portion of the sliding rod is slidably connected into an inner sliding groove of the sliding base, and a limiting assembly is fixedly connected to the top of the sliding base. According to the utility model, the L-shaped rotating plate is rotated to release limitation on the sliding rod, the baffle plate is pushed to drive the T-shaped plate and the sliding rod to slide, the baffle plate can expose the button for operation, the baffle plate is pushed to drive the sliding rod to move, and then the L-shaped rotating plate is rotated to limit the sliding rod, so that an operator can be prevented from mistakenly touching the button to cause wrong instructions of the controller; and stable operation of the controller is ensured.

Description

Technical Field

[0001] This utility model relates to the field of control technology, and in particular to a PLC controller button protection structure with anti-accidental touch function. Background Technology

[0002] A PLC controller is a digital computing and operating electronic device specifically designed for industrial environments. PLC controllers use programmable memory to store instructions for performing logical operations, sequential control, timing, counting, and arithmetic operations. Through digital inputs and outputs, they control various types of machinery and production processes. As a core device in industrial automation, PLCs are characterized by high reliability, strong anti-interference capabilities, flexible programming, and ease of maintenance. They are widely used in manufacturing, energy, transportation, construction, and other fields to achieve automated control and monitoring of production processes.

[0003] A PLC controller mainly consists of a central processing unit, memory, input and output modules, power supply module, and communication module. The CPU is the core, responsible for executing programs and processing data. The memory stores device programs, user programs, and data. The power supply module provides stable power to all components, and the communication module supports data interaction with other devices. The PLC controller works as follows: It acquires status signals from field devices through the input modules; the CPU performs logical operations and processes the input signals according to the user program; and then drives the actuators through the output modules to complete the control task. The entire process operates in a cyclic scanning manner, including three stages: input sampling, program execution, and output refresh, ensuring real-time performance and reliability of the control.

[0004] In the existing technology, some PLC controllers lack an effective anti-accidental touch protection mechanism for their control buttons. In busy and noisy industrial production sites, when operating equipment, inspecting lines, and handling emergency faults, workers may accidentally touch the controller's control buttons due to negligence, collisions, or other unexpected situations. Once an accidental touch occurs, the controller will execute incorrect instructions, which will lead to abnormal operation of the equipment. Therefore, a PLC controller button protection structure with anti-accidental touch function is proposed to solve the above problems. Utility Model Content

[0005] To overcome the above deficiencies, this utility model provides a PLC controller button protection structure with anti-accidental touch function, aiming to improve the problem that some controllers in the prior art lack button protection structure, which makes it difficult to operate stably.

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

[0007] A PLC controller button protection structure with anti-accidental touch function includes a controller body, a protective mechanism on the top of the controller body, and an installation mechanism fixedly connected to the outside of the controller body.

[0008] The protective mechanism includes a slide block, the bottom of which is fixedly connected to the top of the controller body. A T-shaped plate is slidably connected inside the slide block, a baffle is fixedly connected to the outside of the T-shaped plate, a slide rod is fixedly connected to the outside of the T-shaped plate, and the slide rod is slidably connected to the outside of the slide block in the internal slide groove of the slide block. A limit assembly is fixedly connected to the top of the slide block.

[0009] As a further description of the above technical solution:

[0010] The mounting mechanism includes a mounting base, which is externally fixedly connected to the outside of the controller body. A fixed L-shaped plate is externally fixedly connected to the mounting base, and a sliding L-shaped plate is internally slidably connected to the mounting base. A connecting plate is externally fixedly connected to the sliding L-shaped plate, and a pull plate is externally fixedly connected to the connecting plate. The pull plate is externally slidably connected to the inside of the mounting base, and an elastic component is internally fixedly connected to the mounting base.

[0011] As a further description of the above technical solution:

[0012] The limiting component includes a fixed base, the bottom of which is fixedly connected to the top of the slide block, and an L-shaped rotating plate is rotatably connected inside the fixed base. The interior of the L-shaped rotating plate is slidably connected to the outside of the slide rod.

[0013] As a further description of the above technical solution:

[0014] The elastic component includes a round rod, the outside of which is fixedly connected to the inside of the mounting base, the inside of the connecting plate is slidably connected to the outside of the round rod, and a spring is sleeved on the outside of the round rod;

[0015] As a further description of the above technical solution:

[0016] The top of the spring is fixedly connected to the inner top side of the mounting base, and the bottom of the spring is fixedly connected to the top of the connecting plate;

[0017] As a further description of the above technical solution:

[0018] A display screen is fixedly connected to the outside of the controller body, and buttons are provided on the outside of the controller body;

[0019] As a further description of the above technical solution:

[0020] The top of the controller body is provided with a wiring harness interface, and the internal threads of the controller body are connected with tightening screws.

[0021] As a further description of the above technical solution:

[0022] A connecting base is fixedly connected to the top of the controller body, and a toothed plate is slidably connected inside the connecting base.

[0023] This utility model has the following beneficial effects:

[0024] 1. In this utility model, by rotating the L-shaped rotating plate to release the restriction on the slide rod, the baffle is pushed to drive the T-shaped plate and the slide rod to slide. The baffle can expose the button for operation. After the operation is completed, the baffle is pushed to drive the slide rod to move. Then the L-shaped rotating plate is rotated to restrict the slide rod, which can prevent the operator from accidentally touching the button and causing the controller to issue incorrect instructions, thus ensuring the stable operation of the controller.

[0025] 2. In this utility model, the operator manually pulls the pull plate, causing the connecting plate and the sliding L-shaped plate to slide within the mounting base. The spring contracts, and after adjusting the position, the pulling force is released, the spring resets, and pushes the sliding L-shaped plate to reset. The sliding L-shaped plate cooperates with the fixed L-shaped plate to install the controller body, improving the convenience and accuracy of installation. Attached Figure Description

[0026] Figure 1 A three-dimensional schematic diagram of a PLC controller button protection structure with anti-accidental touch function proposed in this utility model;

[0027] Figure 2 This is a schematic diagram of the baffle of a PLC controller button protection structure with anti-accidental touch function proposed in this utility model;

[0028] Figure 3 for Figure 2 Enlarged view of point A in the middle;

[0029] Figure 4 for Figure 2 Enlarged view of point B in the middle;

[0030] Figure 5 This is a schematic diagram of the sliding L-shaped plate of the PLC controller button protection structure with anti-accidental touch function proposed in this utility model;

[0031] Figure 6 for Figure 5 Enlarged view of point C in the middle.

[0032] Legend:

[0033] 1. Controller body; 2. Slide; 3. T-shaped plate; 4. Baffle; 5. Slide rod; 6. Fixed base; 7. L-shaped rotating plate; 8. Mounting base; 9. Fixed L-shaped plate; 10. Sliding L-shaped plate; 11. Connecting plate; 12. Pull plate; 13. Round rod; 14. Spring; 15. Display screen; 16. Button; 17. Wiring harness interface; 18. Tightening screw; 19. Connecting base; 20. Toothed plate. Detailed Implementation

[0034] 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.

[0035] Reference Figure 1 , Figure 3 and Figure 4 The present invention provides an embodiment of a PLC controller button protection structure with anti-accidental touch function, including a controller body 1. The controller body 1 integrates internal circuits and processor key components for data processing and logic control functions. A protective mechanism is provided on the top of the controller body 1, and an installation mechanism is fixedly connected to the outside of the controller body 1.

[0036] The protective mechanism includes a slide block 2, which provides a stable sliding track for the T-shaped plate 3 and the slide rod 5, ensuring that there is no deviation or shaking during the sliding process. The bottom of the slide block 2 is fixedly connected to the top of the controller body 1. The T-shaped plate 3 is slidably connected inside the slide block 2. The T-shaped plate 3 is designed to fit the slide groove of the slide block 2. The baffle 4 can drive the T-shaped plate 3 to slide in the slide groove of the slide block 2. The baffle 4 is fixedly connected to the outside of the T-shaped plate 3. The baffle 4 covers the button 16 of the controller body 1, which is prone to accidental contact, forming a physical barrier to prevent the operator from accidentally touching it and causing the controller to operate incorrectly. The slide rod 5 is fixedly connected to the outside of the T-shaped plate 3. The slide rod 5 plays a role in assisting the T-shaped plate 3 to slide stably. At the same time, it cooperates with the limit component. The outside of the slide rod 5 is slidably connected in the internal slide groove of the slide block 2. The top of the slide block 2 is fixedly connected to the limit component.

[0037] The limiting component includes a fixed base 6, which provides mounting support and rotation fulcrum for the L-shaped rotating plate 7 and can withstand the force exerted by the L-shaped rotating plate 7 during rotation. The bottom of the fixed base 6 is fixedly connected to the top of the slide block 2. The L-shaped rotating plate 7 is rotatably connected inside the fixed base 6. When the L-shaped rotating plate 7 rotates to a certain angle, it can prevent the slide rod 5 from continuing to slide, thereby limiting the position of the baffle 4 and realizing the limiting function of the protective mechanism. The inside of the L-shaped rotating plate 7 is slidably connected to the outside of the slide rod 5.

[0038] Reference Figure 5 and Figure 6 The installation mechanism includes a mounting base 8, which is the main supporting component of the installation mechanism. The mounting base 8 has internally machined grooves and spaces for the movement of the sliding L-shaped plate 10 and the pull plate 12. The mounting base 8 is externally fixedly connected to the outside of the controller body 1. A fixed L-shaped plate 9 is also externally fixedly connected to the mounting base 8. The fixed L-shaped plate 9 is mainly used for initial positioning and connection with the external installation structure, providing an installation reference for the entire controller. The sliding L-shaped plate 10 is slidably connected internally to the mounting base 8. The sliding L-shaped plate 10 can slide in a specific direction within the mounting base 8 during installation. During the process, the installation position of the controller is adjusted by sliding. The external of the sliding L-shaped plate 10 is fixedly connected to the connecting plate 11. The connecting plate 11 plays the role of connecting and transmitting force, transmitting the external force received by the pull plate 12 to the sliding L-shaped plate 10, so that the sliding L-shaped plate 10 slides in the mounting base 8. The external of the connecting plate 11 is fixedly connected to the pull plate 12. The operator can manually pull the pull plate 12 to drive the sliding L-shaped plate 10 and the connecting plate 11 to move. The external of the pull plate 12 is slidably connected to the inside of the mounting base 8. The inside of the mounting base 8 is fixedly connected to the elastic component.

[0039] The elastic component includes a round rod 13, which provides a sliding guide for the connecting plate 11, ensuring that the connecting plate 11 slides stably within the mounting base 8 along the axial direction of the round rod 13. The outer part of the round rod 13 is fixedly connected to the inside of the mounting base 8, and the inside of the connecting plate 11 is slidably connected to the outside of the round rod 13. A spring 14 is sleeved on the outside of the round rod 13, which provides elastic force. When the pull plate 12 is pulled to move the sliding L-shaped plate 10, the spring 14 stores elastic potential energy. After the pulling force is removed, the spring 14 restores its deformation, pushing the connecting plate 11 and the sliding L-shaped plate 10 back to their original positions. The top of the spring 14 is fixedly connected to the inner top side of the mounting base 8, and the bottom of the spring 14 is fixedly connected to the top of the connecting plate 11.

[0040] Reference Figure 2The controller body 1 is externally fixedly connected to a display screen 15, which is used to display the controller's working status, parameter settings, fault information, etc. in real time. The controller body 1 is externally equipped with buttons 16, which are used by the operator to manually input commands, set parameters, and start and stop the control program. The top of the controller body 1 is provided with a wire harness interface 17, which is used to connect external power lines, signal lines, and data lines to realize electrical connection and signal transmission between the controller and external devices. The controller body 1 is internally threaded with tightening screws 18, which are mainly used to fix the various wire harnesses connected to the controller. The top of the controller body 1 is fixedly connected with a connecting seat 19, which provides mounting support and sliding rail for the toothed plate 20. The toothed plate 20 is slidably connected inside the connecting seat 19, which can comb the connected wire harnesses and keep them neat.

[0041] Working principle: When installing the controller body 1, the operator manually pulls the pull plate 12, which drives the connecting plate 11. The connecting plate 11 drives the sliding L-shaped plate 10 to slide within the mounting base 8. The spring 14 retracts, adjusting the controller installation position to meet the installation requirements. After installation, the pulling force on the pull plate 12 is released, and the spring 14 returns to its original deformation, generating elastic force. The elastic force pushes the connecting plate 11 and the sliding L-shaped plate 10 to reset, thus completing the installation.

[0042] In daily operation, when button 16 needs to be operated, the L-shaped rotating plate 7 is rotated to remove the restriction on the slide rod 5, pushing the baffle 4. The baffle 4 drives the T-shaped plate 3 to slide in the slide groove of the slide seat 2. The T-shaped plate 3 drives the slide rod 5 to slide in the slide groove inside the slide seat 2. When the slide rod 5 slides to the appropriate position, the baffle 4 no longer covers button 16. The operator can manually input commands, set parameters, start and stop the control program through button 16. After the operation is completed, push the baffle 4 in the opposite direction so that the baffle 4 covers button 16 again to achieve protection. Throughout the process, the display screen 15 displays the controller's working status, parameter settings, and fault information in real time. The wiring harness is connected to external devices through the wiring harness interface 17 to achieve electrical connection and signal transmission. Tighten the screw 18 to fix the wiring harness. The toothed plate 20 slides in the connector 19 to comb the wiring harness and keep it neat.

[0043] Finally, it should be noted that the above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Although the present utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

Claims

1. A PLC controller button protection structure with anti-accidental touch function, comprising a controller body (1), characterized in that: The top of the controller body (1) is provided with a protective mechanism, and the outside of the controller body (1) is fixedly connected with an installation mechanism; The protective mechanism includes a slide (2), the bottom of which is fixedly connected to the top of the controller body (1). A T-shaped plate (3) is slidably connected inside the slide (2), a baffle (4) is fixedly connected to the outside of the T-shaped plate (3), a slide rod (5) is fixedly connected to the outside of the T-shaped plate (3), and the slide rod (5) is slidably connected to the inside of the slide (2). A limit assembly is fixedly connected to the top of the slide (2).

2. The PLC controller button protection structure with anti-accidental touch function according to claim 1, characterized in that: The mounting mechanism includes a mounting base (8), which is externally fixedly connected to the outside of the controller body (1). A fixed L-shaped plate (9) is fixedly connected to the outside of the mounting base (8). A sliding L-shaped plate (10) is slidably connected to the inside of the mounting base (8). A connecting plate (11) is fixedly connected to the outside of the sliding L-shaped plate (10). A pull plate (12) is fixedly connected to the outside of the connecting plate (11). The pull plate (12) is slidably connected to the inside of the mounting base (8). An elastic component is fixedly connected to the inside of the mounting base (8).

3. The PLC controller button protection structure with anti-accidental touch function according to claim 1, characterized in that: The limiting component includes a fixed seat (6), the bottom of which is fixedly connected to the top of the slide (2), and an L-shaped rotating plate (7) is rotatably connected inside the fixed seat (6), and the inside of the L-shaped rotating plate (7) is slidably connected to the outside of the slide rod (5).

4. The PLC controller button protection structure with anti-accidental touch function according to claim 2, characterized in that: The elastic component includes a round rod (13), the outside of which is fixedly connected to the inside of the mounting base (8), the inside of the connecting plate (11) is slidably connected to the outside of the round rod (13), and a spring (14) is sleeved on the outside of the round rod (13).

5. A PLC controller button protection structure with anti-accidental touch function according to claim 4, characterized in that: The top of the spring (14) is fixedly connected to the inner top side of the mounting base (8), and the bottom of the spring (14) is fixedly connected to the top of the connecting plate (11).

6. The PLC controller button protection structure with anti-accidental touch function according to claim 1, characterized in that: The controller body (1) is fixedly connected to a display screen (15), and the controller body (1) is provided with buttons (16) on its exterior.

7. The PLC controller button protection structure with anti-accidental touch function according to claim 1, characterized in that: The top of the controller body (1) is provided with a wire harness interface (17), and the internal thread of the controller body (1) is connected with a tightening screw (18).

8. A PLC controller button protection structure with anti-accidental touch function according to claim 1, characterized in that: The top of the controller body (1) is fixedly connected to a connecting seat (19), and a toothed plate (20) is slidably connected inside the connecting seat (19).

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