Industrial-grade operating switch emergency stop protection safety lock

Abstract

The utility model relates to an industrial grade travelling crane switch emergency stop protection safety lock belongs to hoisting equipment safety device field. Be equipped with travelling crane switch box, install control cable protection sleeve on the top of travelling crane switch box for the connection of control cable and travelling crane switch box, be equipped with the lock switch of total power supply can be connected and disconnected on the front top of travelling crane switch box, be equipped with the self -lock emergency stop button of total power supply can be cut off below the lock switch, install start button, stop button below the self -lock emergency stop button in proper order, to normal start or stop control power supply, be equipped with 4 work positions or 6 work positions direction button below the start button, stop button, the travelling crane switch box is equipped with the emergency stop safety lock cover of U shape cross section on the position of the self -lock emergency stop button, the opening end of U shape emergency stop safety lock cover is processed to have emergency stop safety lock lock hole, and the safety lock steel beam of safety lock can lock emergency stop safety lock cover in travelling crane switch box through emergency stop safety lock lock hole.

Description

Technical Field

[0001] This utility model relates to the field of safety protection devices for lifting equipment, specifically an industrial-grade emergency stop protection safety lock for crane switches. Background Technology

[0002] As is well known, lifting equipment is widely used in manufacturing enterprises, especially for large equipment or heavy components in the manufacturing process. However, long-term use can lead to malfunctions and shutdowns, requiring maintenance. Traditional maintenance involves shutting down the industrial-grade crane's emergency stop switch and assigning a dedicated person to monitor the operation. However, human supervision carries inherent risks. To ensure maintenance safety and prevent the risk of operators accidentally starting the crane due to the supervisor's absence or inattention, especially during long-term maintenance at heights, accidents involving mechanical injuries to maintenance personnel frequently occur because the cranes are often located in concealed areas and cannot be easily detected at the work site. Summary of the Invention

[0003] In order to overcome the shortcomings of the existing technology, this utility model provides an industrial-grade emergency stop protection safety lock for crane switches to prevent accidental activation from causing mechanical injury accidents to maintenance personnel.

[0004] The technical solution adopted by this utility model to solve its technical problem is: an industrial-grade emergency stop protection safety lock for a crane switch, which includes a crane switch box and a control cable protective sleeve installed on the top of the crane switch box for connecting the control cable to the crane switch box. The key feature is that a lockable switch that can connect and disconnect the main power supply is provided on the upper front of the crane switch box. Below the lockable switch is a self-locking emergency stop button that can cut off the main power supply. Below the self-locking emergency stop button, a start button and a stop button are installed in sequence for normally starting or stopping the control power supply. Below the start button and stop button are 4-position or 6-position directional buttons. A U-shaped emergency stop safety lock cover is fitted onto the crane switch box at the location of the self-locking emergency stop button. The open end of the U-shaped emergency stop safety lock cover has an emergency stop safety lock hole. The safety lock steel beam of the safety lock passes through the emergency stop safety lock hole to lock the emergency stop safety lock cover onto the crane switch box.

[0005] The beneficial effect of this utility model is that it solves the risk of operators accidentally starting cranes during the maintenance of lifting equipment due to the failure of supervisors to perform their duties, such as leaving or being inattentive. This is especially true for high-altitude maintenance, where maintenance personnel often cannot clearly detect the accident when starting cranes in concealed locations, leading to mechanical injuries. This invention eliminates the safety risks in the maintenance of lifting equipment and truly achieves inherent safety in the maintenance of lifting equipment. Attached Figure Description

[0006] The present invention will be further described below with reference to the accompanying drawings and embodiments.

[0007] Figure 1 This is a diagram showing the traction switch in the unlocked state.

[0008] Figure 2 This is the main view of the vehicle control switch in the locked state.

[0009] Figure 3 This is a schematic diagram of the left view of the vehicle control switch in the unlocked state.

[0010] Figure 4 This is a schematic diagram of the locked state of the vehicle control switch (left view).

[0011] Figure 5 This is a partially enlarged schematic diagram of the vehicle control switch in the unlocked state.

[0012] Figure 6 This is a magnified diagram of the vehicle's trip switch in the locked state.

[0013] Figure 7 This is a diagram showing the vehicle's safety lock in the open position.

[0014] In the diagram: 1. Car switch box; 2. Control cable protective sleeve; 3. Control cable; 4. Locking switch; 5. Emergency stop button with self-locking; 6. Start button; 7. Stop button; 8. Direction button; 9. Emergency stop button locked; 10. Emergency stop button open. S1. Emergency stop safety lock cover, S2. Emergency stop safety lock keyhole, S3. Safety lock, S4. Safety lock steel beam, S5. Safety lock key; L1. Distance between lock holes in the emergency stop safety lock cover; L2. Height of the protective beam in the emergency stop safety lock cover; L3. Inner width of the emergency stop safety lock cover. Detailed Implementation

[0015] In the figure, the present invention includes a crane switch box 1. A control cable protective sleeve 2 is installed on the top of the crane switch box 1 to control the connection between the control cable 3 and the crane switch box 1. A lockable switch 4 is provided on the upper front of the crane switch box 1 to connect and disconnect the main power supply. Below the lockable switch 4 is a self-locking emergency stop button 5 to cut off the main power supply in an emergency. Below the self-locking emergency stop button 5, a start button 6 and a stop button 7 are installed in sequence to start or stop the control power supply normally. Below the start button 6 and the stop button 7, a 4-position or 6-position directional button 8 is provided in sequence according to the actual use to control the directional movement of the lifting equipment.

[0016] When the lifting equipment malfunctions and needs maintenance, hang the equipment maintenance warning sign on the self-locking emergency stop button 5 on the crane switch box 1. Press the self-locking emergency stop button 5 from the open state 10 to the locked state 9. Then, insert the U-shaped emergency stop safety lock cover S1 onto the self-locking emergency stop button 5 in the crane switch box 1. Pass the safety lock steel beam S4 of the safety lock S3 through the emergency stop safety lock hole S2 on the emergency stop safety lock cover S1. Rotate the safety lock key S5 to cut off the power and lock it. After locking the lock switch 4, remove both keys and keep them safe for maintenance personnel. No one can reset the self-locking emergency stop button 5 or remove the equipment maintenance warning sign without the safety lock key S5. The height difference between the locked state 9 and the open state 10 of the emergency stop button is 12mm, and it has a self-locking function. It can only be opened by rotating it clockwise. The height L2 of the emergency stop safety lock cover's protective beam is 2mm higher than the emergency stop button 9 in its locked state. This ensures that the self-locking emergency stop button cannot be activated to the open state after the emergency stop safety lock cover is locked by the safety lock. The inner width L3 of the emergency stop safety lock cover is 5mm wider than the width of the trolley switch box. This ensures that the emergency stop safety lock cover S1 can easily cover the self-locking emergency stop button 5 on the trolley switch box 1. The distance L1 from the lock hole of the emergency stop safety lock cover is 2mm higher than the height of the trolley switch box 1. This ensures that the safety lock beam S4 of the safety lock S3 can smoothly pass through the emergency stop safety lock hole S2 on the emergency stop safety lock cover S1. After the maintenance personnel have completed their maintenance and left the dangerous area, they must manually open the locking switch 4 and the safety lock S3 to reset the self-locking emergency stop button 5. Only in this way can the safety of maintenance workers during the maintenance of lifting equipment be effectively guaranteed, truly achieving inherent safety in the maintenance of lifting equipment.

Claims

1. An industrial-grade emergency stop safety lock for a crane switch, comprising a crane switch box, wherein a protective sleeve for the control cable is installed on the top of the crane switch box for connecting the control cable to the crane switch box, characterized in that, A lockable switch that can connect and disconnect the main power supply is located on the upper front of the crane switch box. Below the lockable switch is a self-locking emergency stop button that can cut off the main power supply. Below the self-locking emergency stop button, a start button and a stop button are installed in sequence to start or stop the control power supply normally. Below the start button and stop button, there are 4-position or 6-position directional buttons. At the location of the self-locking emergency stop button, a U-shaped emergency stop safety lock cover is installed on the crane switch box. The open end of the U-shaped emergency stop safety lock cover is machined with an emergency stop safety lock hole. The safety lock steel beam of the safety lock passes through the emergency stop safety lock hole and can lock the emergency stop safety lock cover onto the crane switch box.

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