A new multifunctional pull cord switch

Abstract

The utility model discloses a novel multifunctional pull cord switch belongs to switch control technical field, including switch device, mounting bracket, fixed circle frame, infrared detection frame, pull cord, ball, controller, circuit, clamping block, output board and alarm lamp, and fixed circle frame is fixed on switch device, and infrared detection frame is fixed on fixed circle frame, and pull cord passes through fixed circle frame, and pull cord is fixed with ball, and infrared detection frame is electrically connected to controller through circuit, and controller is electrically connected to output board and alarm lamp, and controller is used for analyzing infrared detection frame response ball's number of times. The utility model discloses through distinguishing normal and emergency shutdown of pulling frequency, and the function is various, still supports remote control and intelligent linkage, and response is fast, and operation is safe and convenient, and the intelligent level is high.

Description

Technical Field

[0001] This utility model relates to the field of switch control technology, and in particular to a novel multifunctional pull rope switch. Background Technology

[0002] As a safety device widely used in industrial production lines, conveyor belts, and large mechanical equipment, the pull rope switch mainly provides an emergency stop control method that can be quickly activated.

[0003] In traditional technology, pull-cord switches typically employ purely mechanical triggering or simple electrical switching structures. Operators pull the cord to activate the internal mechanical components of the switch, thereby cutting off the power supply to the equipment, achieving an emergency shutdown, and ensuring the safety of personnel and equipment.

[0004] However, the core limitation of this design lies in its single function. Regardless of the pulling force or method, traditional pull rope switches can only execute a preset command, which is usually an emergency stop. In actual production operations, operational needs are often diverse. For example, the control logic should be different for normal shutdown at the end of the production process and emergency shutdown under sudden circumstances.

[0005] Existing pull-cord switches cannot handle such differentiated commands, resulting in limited functionality. If operators are only near the pull cord, they cannot perform normal, non-emergency shutdown operations by pulling the cord, reducing operational flexibility and convenience, and failing to fully utilize the control potential of the pull cord as a linear actuator.

[0006] Therefore, this utility model proposes a novel multifunctional pull rope switch to overcome the shortcomings of the prior art. Utility Model Content

[0007] In view of the problems of existing pull-cord switches, such as limited functionality, inability to distinguish between normal and emergency stop commands using the same pull cord, and lack of remote control and intelligent linkage capabilities, this utility model aims to provide a new type of multi-functional pull-cord switch with an improved structure that can effectively solve the above problems.

[0008] This utility model provides a novel multifunctional pull cord switch, comprising: a switch device, a fixed circular frame, an infrared detection frame, a pull cord, a ball, a controller, circuitry, a locking block, and an output board.

[0009] The fixed circular frame is fixedly connected to the front left end of the switch device, the infrared detection frame is fixedly connected to the outer wall of the fixed circular frame, the pull rope is inserted into the fixed circular frame, one end of the pull rope is connected to the inside of the switch device, and the ball is fixedly connected to the pull rope so that the ball can pass through the sensing area of ​​the infrared detection frame when the pull rope is pulled.

[0010] The controller is fixedly connected to the top rear side of the switching device. The circuit is used to electrically connect the infrared detection frame and the controller. One end of the circuit is fixedly connected to the bottom of the outer wall of the infrared detection frame, and the other end of the circuit is fixed to the left side of the outer wall of the switching device.

[0011] The card block is located at the upper right corner of the front end of the switching device, and the output plate is fixedly connected to the output end of the switching device.

[0012] The controller is used to analyze the number of times the infrared detection frame senses the ball, and output different control information according to the number of times. The control information is used to control the movement of the output plate until it collides with the card block, thereby stopping the operation of the device.

[0013] Preferably, the upper and lower ends of the output board are rotatably connected to a connecting block, which is used to connect to the device to be stopped. When the output board is stopped by the controller, the connecting block can drive the connected external device to stop synchronously.

[0014] Preferably, an alarm light is fixedly connected to the front side of the top of the switching device. The alarm light is electrically connected to the controller and is used to simultaneously issue an audible and visual alarm when the controller controls the output board to collide with the card block to stop the equipment from running, so as to remind the surrounding staff.

[0015] Preferably, a button is provided on the upper right side of the front of the switching device. The button is electrically connected to the controller as a supplement to the pull-cord control. The button is used by the operator to manually control the start or stop of the switching device.

[0016] Preferably, the right front side of the switching device has an interface near the bottom. The interface is electrically connected to the controller and is used to connect to external devices via a data cable to receive intelligent stop signals from external devices and realize production line linkage control.

[0017] Preferably, a mounting bracket is fixedly connected to the bottom front side of the switch device. The mounting bracket is used to securely fix the switch device as a whole in the working area to ensure that the switch device will not loosen when the rope is pulled.

[0018] Preferably, the controller is configured to have specific counting logic. When the pull rope is pulled once, the controller determines it as a normal stop command; when the pull rope is pulled twice within a preset time window, the controller determines it as an emergency stop command, thereby achieving functional differentiation.

[0019] Preferably, the controller also has a built-in wireless communication module for receiving remote control signals from a mobile phone or controller. When the operator is away from the switch device, they can also remotely control the output board to collide with the card block to stop the machine.

[0020] This utility model has the following beneficial effects: 1. This utility model solves the problem that existing traditional pull rope switches have a single function, can only realize a single stop operation, and cannot distinguish the command type by fixing a ball on the pull rope and forming a counting and analysis system with an infrared detection frame and a controller. It achieves the technical effect of using only one pull rope to realize two different control modes, normal stop and emergency stop, by recognizing different pull times. While simplifying the mechanical structure, it greatly enriches the functionality of the equipment and meets the control needs of different production scenarios.

[0021] 2. This utility model, through a technical solution that enables the controller to receive remote control signals from mobile phones and controllers, solves the problem in the prior art where operators must physically contact the switch or be near the equipment to control it, which poses certain safety hazards. It achieves the technical effect of enabling operators to accurately control the equipment even when they are far away from the equipment or cannot touch the pull rope, significantly improving the operational safety and convenience in industrial sites.

[0022] 3. This utility model solves the problem of delayed fault response caused by the independent operation of traditional pull rope switches and the lack of information linkage between them and production equipment by setting an interface on the switch device to connect with external devices. It achieves the technical effect of automatically and quickly transmitting a stop signal to the controller to trigger an emergency shutdown when an external device malfunctions, thereby improving the intelligence level and emergency response speed of the production line. Attached Figure Description

[0023] Figure 1 A perspective view of a novel multifunctional pull cord switch proposed in this utility model; Figure 2 This utility model presents a structural diagram of a controller for a novel multifunctional pull-rope switch. Figure 3 This is a partial structural diagram of an alarm light based on a novel multifunctional pull-cord switch proposed in this utility model; Figure 4 This is a diagram illustrating the pull rope structure of a novel multifunctional pull rope switch proposed in this utility model.

[0024] Legend: 1. Switching device; 2. Mounting bracket; 3. Controller; 4. Alarm light; 5. Button; 6. Interface; 7. Locking block; 8. Output board; 9. Connecting block; 10. Fixing round frame; 11. Infrared detection frame; 12. Wiring; 13. Sphere; 14. Pull rope. Detailed Implementation

[0025] To make the objectives, technical solutions, and advantages of this utility model clearer, the technical solutions in the embodiments of this utility model will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only a part of the embodiments of this utility model, and not all of them. All other embodiments obtained by those skilled in the art based on the embodiments of this utility model without creative effort are within the scope of protection of this utility model.

[0026] Example: Please refer to Figures 1 to 4 This utility model provides a novel multi-functional pull rope switch, which aims to solve the problems of existing pull rope switches having a single function, being unable to distinguish between normal shutdown and emergency shutdown, and lacking remote control and intelligent linkage capabilities.

[0027] like Figures 1 to 4 As shown, the new multi-functional pull cord 14 switch includes a switch device 1. A mounting bracket 2 is fixedly connected to the bottom front side of the switch device 1, which is used to fix the switch device 1 in the working area. A controller 3 is fixedly connected to the rear top side of the switch device 1, which is used to analyze and process signals. An alarm light 4 is fixedly connected to the front top side of the switch device 1. A button 5 is located near the top on the right front side of the switch device 1. An interface 6 is located near the bottom on the front right side of the switch device 1. A locking block 7 is located at the upper right corner of the front end of the switch device 1. An output plate 8 is fixedly connected to the output end of the switch device 1. Connecting blocks 9 are rotatably connected to the upper and lower ends of the output plate 8. To realize control based on pull cord 14 counting, a fixed circular frame is fixedly connected to the left front side of the switch device 1. 10. An infrared detection frame 11 is fixedly connected to the outer wall of the fixed circular frame 10. A pull rope 14 is inserted inside the fixed circular frame 10. One end of the pull rope 14 is connected to the inside of the switch device 1. A ball 13 is fixedly connected to the pull rope 14. The ball 13 is adapted to the sensing area of ​​the infrared detection frame 11. The infrared detection frame 11 is electrically connected to the controller 3 through a line 12. One end of the line 12 is fixedly connected to the bottom of the outer wall of the infrared detection frame 11. The other end of the line 12 is fixed to the left side of the outer wall of the switch device 1. The controller 3 is electrically connected to the alarm light 4, the button 5, the interface 6, and the output board 8. It is used to analyze the signals from the infrared detection frame 11, the button 5, the interface 6, or the mobile phone or controller, and control the output board 8 to collide with the card block 7, while driving the alarm light 4.

[0028] Please refer to Figure 2 , Figure 3 and Figure 4 The pull-cord 14 induction counting system includes a fixed circular frame 10, an infrared detection frame 11, a circuit 12, a sphere 13, and a pull cord 14. The fixed circular frame 10 is fixedly connected to the front left end of the switch device 1. The pull cord 14 passes through the fixed circular frame 10, with one end of the pull cord 14 connected to the inside of the switch device 1. The sphere 13 is fixedly connected to the pull cord 14. The infrared detection frame 11 is fixedly connected to the outer wall of the fixed circular frame 10, facing the movement path of the sphere 13. One end of the circuit 12 is fixedly connected to the bottom of the outer wall of the infrared detection frame 11, and the other end of the circuit 12 is fixed to the left side of the outer wall of the switch device 1. The circuit 12 is used to establish an electrical connection between the infrared detection frame 11 and the controller 3. The switch execution system includes a locking block 7 and an output board 8. The locking block 7 is located at the front end of the switch device 1. In the upper right corner, the output board 8 is fixedly connected to the output end of the switch device 1. The controller 3 is electrically connected to the infrared detection frame 11 and the output board 8. The controller 3 is used to analyze the number of sensing signals generated by the infrared detection frame 11 when the ball 13 passes through, and controls the output board 8 to collide with the card block 7 according to the analysis results. The controller 3 is configured to control the switch device 1 to stop normally when the pull rope 14 is pulled once; and to control the switch device 1 to stop urgently when the pull rope 14 is pulled twice. For extended functions, the controller 3 is also used to receive remote control signals from a mobile phone or controller, and similarly control the output board 8 to collide with the card block 7. To clarify the connection of the actuator, the upper and lower ends of the output board 8 are rotatably connected to the connecting block 9, which is used to connect the equipment to be stopped.

[0029] As a preferred embodiment, please refer to Figure 1 A mounting bracket 2 is fixedly connected to the bottom front side of the switch device 1. The mounting bracket 2 is used to securely fix the switch device 1 in the working area.

[0030] As another preferred embodiment, please refer to Figure 1 and Figure 3 An alarm light 4 is fixedly connected to the front of the top of the switch device 1. The alarm light 4 is electrically connected to the controller 3 and is used to issue an alarm synchronously when the controller 3 stops controlling the equipment.

[0031] As another preferred embodiment, please refer to Figure 1 A button 5 is provided on the upper right side of the front side of the switch device 1. The button 5 is electrically connected to the controller 3 and is used by the operator to manually control the start and stop of the switch device 1.

[0032] As another preferred embodiment, please refer to Figure 1An interface 6 is provided on the right front side near the bottom of the switch device 1. The interface 6 is electrically connected to the controller 3 and is used to connect to external devices via a data cable to receive stop signals transmitted by external devices.

[0033] Working principle: When the equipment needs to be controlled by the pull rope 14, the operator pulls the pull rope 14, which causes the fixedly connected ball 13 to move within the fixed circular frame 10 and pass through the sensing area of ​​the infrared detection frame 11. When the infrared detection frame 11 senses the ball 13 entering, it sends a signal to the controller 3 fixed on the top rear side of the switch device 1 through the line 12. The controller 3 analyzes and calculates the number of signals received from the infrared detection frame 11 within a preset time window. If the controller 3 analyzes that the pull was once, it is judged as a normal stop command. If the controller 3 analyzes that the pull was twice, it is judged as an emergency stop command. When the controller 3 receives the stop command, it electrically drives the output plate 8 at the output end of the switch device 1 to move until the output plate 8 collides with the locking block 7 located at the upper right corner of the front end of the switch device 1 and stops. The connecting block 9 fixedly connected to the upper and lower ends of the output plate 8 also stops, thereby driving the external equipment rotatably connected to the connecting block 9 to stop running. At the same time as the controller 3 drives the output plate 8 to move, the controller 3 electrically drives the alarm light 4 fixed on the front side of the top of the switch device 1 to light up and alarm, so as to call the staff. The switch device 1 also supports multiple control methods. The operator can directly press the button 5 located on the upper right side of the front of the switch device 1. The button 5 is electrically connected to the controller 3 and is used to manually send start and stop signals. Alternatively, the controller 3 can also receive remote control signals from a mobile phone or controller to perform a shutdown action. When an external device connected through the interface 6 malfunctions, the external device will transmit a stop signal to the controller 3 through the interface 6 located on the lower right side of the switch device 1. The controller 3 will quickly control the device to stop running in an emergency. The entire switch device 1 is fixed in the working area by the mounting bracket 2 fixedly connected to the lower front side.

Claims

1. A novel multi-functional pull cord switch, comprising: Switching device (1); A fixed circular frame (10) is fixedly connected to the front left end of the switch device (1); Infrared detection frame (11), the infrared detection frame (11) is fixedly connected to the outer wall of the fixed circular frame (10); Pull cord (14), the pull cord (14) is inserted into the fixed circular frame (10), and one end of the pull cord (14) is connected to the inside of the switch device (1); A sphere (13) is fixedly connected to the pull rope (14) and is used to pass through the infrared detection frame (11) when the pull rope (14) is pulled. The controller (3) is fixedly connected to the top rear side of the switching device (1); The infrared detection frame (11) is electrically connected to the controller (3) via the line (12). One end of the line (12) is fixedly connected to the bottom of the outer wall of the infrared detection frame (11), and the other end of the line (12) is fixed to the left side of the outer wall of the switch device (1). Card block (7), the card block (7) is located at the upper right corner of the front end of the switch device (1); Output board (8), which is fixedly connected to the output end of the switching device (1); Its features are, The controller (3) is used to analyze the number of times the infrared detection frame (11) senses the ball (13), and output different control information according to the number of times, so as to control the output board (8) to collide with the card block (7) and thus stop the device from running.

2. The novel multifunctional pull-cord switch according to claim 1, characterized in that, The upper and lower ends of the output board (8) are rotatably connected to a connecting block (9), which is used to connect the device to be stopped.

3. The novel multifunctional pull-cord switch according to claim 1, characterized in that, An alarm light (4) is fixedly connected to the front of the top of the switch device (1). The alarm light (4) is electrically connected to the controller (3) and is used to issue an alarm synchronously when the controller (3) controls the output board (8) to stop the device from running.

4. The novel multifunctional pull-cord switch according to claim 1, characterized in that, A button (5) is provided on the upper right side of the front side of the switch device (1). The button (5) is electrically connected to the controller (3) and is used to manually control the start and stop of the switch device (1).

5. The novel multifunctional pull-cord switch according to claim 1, characterized in that, An interface (6) is provided on the right front side of the switch device (1) near the bottom. The interface (6) is electrically connected to the controller (3) and is used to receive a stop signal transmitted by an external device connected to the switch device (1).

6. The novel multifunctional pull-cord switch according to claim 1, characterized in that, The front bottom of the switch device (1) is fixedly connected to a mounting bracket (2), which is used to fix the switch device (1) in the working area.

7. The novel multifunctional pull-cord switch according to claim 1, characterized in that, The controller (3) is configured to: control the switch device (1) to stop normally when the pull rope (14) is pulled once, and control the switch device (1) to stop urgently when the pull rope (14) is pulled twice.

8. The novel multifunctional pull-cord switch according to claim 1, characterized in that, The controller (3) is also used to receive remote control signals from a mobile phone or controller to control the output board (8) to collide with the card block (7).

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