Isolation locking device for pedal

Abstract

The utility model discloses an isolation locking device for a pedal, which is characterized in that a mounting bottom plate and a locking pin are arranged on the pedal, and the locking pin corresponds to a lock hook on the mounting bottom plate; the mounting bottom plate is provided with a stopper, an in-place closing switch and an isolation turntable; the stopper, the electromagnet and the emergency unlocking device are connected in sequence; the isolation rotating disc, the isolation switch and the isolation lock hook are installed in a matched mode. The safe and reliable operation of the pedal is ensured through the matching of electrical control and pure mechanical control. The structure is simple, the size is small and later maintenance is facilitated.

Description

Technical Field

[0001] The utility model relates to the field of pedals for rail transportation, in particular to an isolation and locking device for a pedal. Background Art

[0002] Telescopic steps are currently widely used as a device to improve rail vehicle safety. They significantly reduce the possibility of people and objects accidentally falling into the gap between the vehicle body and the platform when passengers board and exit the vehicle, playing a significant role. Since telescopic steps are widely used, it is necessary to develop a simple and fully functional isolation and locking device for telescopic steps. Existing pedal locking devices are complex and bulky, making them inconvenient to use. Their locking, unlocking, and isolation functions are relatively independent, resulting in high costs, difficult maintenance, and low reliability.

[0003] Therefore, it is necessary to develop a new type of isolation and locking device for the pedal to overcome the above problems. Utility Model Content

[0004] Purpose of the Utility Model: To address the shortcomings and defects of the existing technology, the utility model provides an isolation and locking device for a pedal, which ensures the safe and reliable operation of the pedal through the combination of electrical control and purely mechanical control. The simple structure and small size facilitate subsequent maintenance.

[0005] Technical solution: The utility model is an isolation locking device for a pedal, which is characterized in that: a mounting base and a locking pin are provided on the pedal, and the locking pin corresponds to the lock hook on the mounting base; a lock block, a closed position switch and an isolation turntable are provided on the mounting base; the lock block, the electromagnet and the emergency unlocking device are connected in sequence; the isolation turntable, the isolation switch and the isolation lock hook are installed in combination.

[0006] Wherein, the lock hook is provided with a groove for placing the locking pin.

[0007] Wherein, the lock hook is provided with a protruding structure corresponding to the lock stop.

[0008] Wherein, the lock hook is provided with a groove corresponding to the isolation lock hook.

[0009] Wherein, the lock block is provided with a protruding structure for triggering a closed position switch.

[0010] Wherein, the closed position switch and the isolating switch are connected to the external electrical system.

[0011] Wherein, the isolation lock hook and the lock hook are provided with a torsion spring.

[0012] Beneficial Effects: Compared with the existing technology, this utility model has the following significant advantages: it ensures safe and reliable pedal operation through the combination of electrical control and purely mechanical control. It has a simple structure and a small size, which is convenient for later maintenance. It also has good versatility and can be used on different pedal devices. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] Figure 1 It is a structural diagram of the utility model;

[0014] Figure 2 This is a schematic structural diagram of the locked state of the utility model;

[0015] Figure 3 This is a schematic structural diagram of the utility model in an isolated state;

[0016] In the figure, 1 is the lock hook; 2 is the lock stop; 3 is the electromagnet; 4 is the emergency unlocking device; 5 is the mounting base; 6 is the closed position switch; 7 is the isolation turntable; 8 is the isolation switch; 9 is the isolation lock hook; and 10 is the locking pin. DETAILED DESCRIPTION

[0017] The technical solution of the present utility model is further described below in conjunction with the accompanying drawings and specific implementation methods.

[0018] The utility model is an isolation locking device for a pedal, and a mounting base 5 and a locking pin 10 are provided on the pedal. The locking pin 10 corresponds to the lock hook 1 on the mounting base 5; a lock block 2, a closed position switch 6 and an isolation turntable 7 are provided on the mounting base 5; the lock block 2, the electromagnet 3 and the emergency unlocking device 4 are connected in sequence; the isolation turntable 7, the isolation switch 8 and the isolation lock hook 9 are installed in conjunction with each other. Among them, a groove for placing the locking pin 10 is provided on the lock hook 1. A protruding structure corresponding to the lock block 2 is provided on the lock hook 1. A groove corresponding to the isolation lock hook 9 is provided on the lock hook 1. A protruding structure for triggering the closed position switch 6 is provided on the lock block 2. The closed position switch 6 and the isolation switch 8 are connected to the external electrical system. The isolation lock hook 9 and the lock hook 1 are provided with a torsion spring.

[0019] The present invention needs to be installed in a pedal device configured for a rail vehicle. The lock hook 1 is installed at the end of the mounting base 5 and can rotate. When it is not in operation, it can be reset by a torsion spring. The locking pin 10 is installed on the pedal. When locking is required, the locking pin 10 enters the groove of the lock hook 1. In the locked state, the end of the lock block 2 will contact the protrusion of the lock hook 1, preventing the lock hook 1 from rotating, forming a reliable lock. At the same time, the lock block 2 will trigger the closed position switch 6, allowing the electrical system to detect that the pedal is in a locked state. The lock block 2 is connected to the electromagnet 3. When unlocking is required, the electromagnet 3 enters the attracted state, driving the lock block 2 to rotate. The end of the lock block 2 will disengage from the protrusion of the lock hook 1, the lock hook 1 limit disappears, and it is rotated to unlock. The locking pin 10 can be detached from the lock hook 1, and the lock block 2 no longer triggers the closed position switch 6, allowing the electrical system to detect that the pedal is in an unlocked state.

[0020] The electromagnet 3 of the utility model is connected to the emergency unlocking device 4. When the electromagnet 3 fails to work properly, the emergency unlocking device 4 can be manually pulled by a wire rope, forcing the electromagnet 3 to engage, pulling the lock block 2 out of the lock hook 1 to achieve the unlocking function. The isolation turntable 7 and the isolation lock hook 9 are installed in a matching manner. In the locked state, the isolation turntable 7 can be manually pulled by a wire rope to rotate. The rotation of the isolation turntable 7 will drive the isolation lock hook 9 to rotate. The isolation lock hook 9 and the groove on the lock hook 1 cooperate. At this time, the lock hook is limited, the electromagnet 3 is engaged and cannot unlock the lock hook 1, thereby preventing the pedal from working. At the same time, in the isolated state, the isolation lock hook 9 will trigger the isolation switch 8, allowing the electrical system to detect that the pedal is in the isolated state.

[0021] When the pedal needs to be released from isolation and resume operation, the isolation dial 7 rotates to its initial position. The isolation hook 9, simultaneously reset by the torsion spring, disengages the hook 1, allowing the hook 1 to rotate freely again. The reset of the isolation hook 9 deactivates the isolation switch 8, allowing the electrical system to detect that the pedal is no longer isolated. The pedal then resumes normal operation. When the pedal is in the non-closed position, operating the isolation dial 7 prevents the isolation hook 9 from entering the hook 1, preventing isolation and improving safety.

[0022] The utility model ensures the safety and reliability of the pedal operation through the combination of electrical control and pure mechanical control. It has a simple structure and a small volume, which is convenient for later maintenance. It also has good versatility and can be used on different pedal devices.

Claims

1. A pedal isolation and locking device, characterized in that: A mounting base plate (5) and a locking pin (10) are provided on the pedal, and the locking pin (10) corresponds to a locking hook (1) on the mounting base plate (5); a locking block (2), a closed position switch (6) and an isolation rotary disk (7) are provided on the mounting base plate (5); the locking block (2), the electromagnet (3) and the emergency unlocking device (4) are connected in sequence; and the isolation rotary disk (7), the isolation switch (8) and the isolation locking hook (9) are installed in a matching manner.

2. The pedal isolation and locking device according to claim 1, characterized in that: The lock hook (1) is provided with a groove for accommodating the locking pin (10).

3. The pedal isolation and locking device according to claim 1, wherein: The lock hook (1) is provided with a protruding structure corresponding to the lock stop (2).

4. The pedal isolation and locking device according to claim 1, wherein: The lock hook (1) is provided with a groove corresponding to the isolation lock hook (9).

5. The pedal isolation and locking device according to claim 1, wherein: The lock block (2) is provided with a protruding structure for triggering a closed position switch (6).

6. The pedal isolation and locking device according to claim 1, characterized in that: The closed position switch (6) and the isolating switch (8) are connected to an external electrical system.

7. The pedal isolation and locking device according to claim 1, characterized in that: The isolation lock hook (9) and the lock hook (1) are provided with a torsion spring.

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