Rail vehicle pedal self-locking support flip device

Abstract

The utility model discloses a rail vehicle pedal self -locking support flip device, including fixed plate, turnover board, pedal support wheel subassembly, unlocking limit wheel subassembly, locking support block, locking pin and unlocking slope, the fixed plate is installed on the pedal frame, and fixed plate is hinged with turnover board through long shaft, is equipped with a plurality of reset spring on long shaft, the fixed plate is connected with pedal support wheel subassembly, and unlocking limit wheel subassembly, locking support block are fixedly connected with turnover board, the locking pin is set in the left and right sides of movable pedal, and the locking pin is fixedly connected with movable pedal, unlocking slope is set below movable pedal front part. The utility model reduces movable pedal size, realizes the mechanical locking of flip assembly.

Description

Technical Field

[0001] This utility model relates to the field of rail vehicles, and in particular to a self-locking support flip cover device for rail vehicle pedals. Background Technology

[0002] The existing flip-top cover of the rail vehicle's tread mechanism only serves a sealing function and has no other additional functions. To effectively prevent lateral movement of the tread during operation, the support assembly behind the movable tread needs to adopt a double roller + double limit block structure, which increases the space occupied by the movable tread after retraction and indirectly increases the tread size. Furthermore, the existing flip-top mechanism relies on gravity or spring force to achieve the locking function, and the flip-top cannot maintain a mechanically locked position.

[0003] Therefore, it is necessary to develop new structures specifically to overcome the above problems. Summary of the Invention

[0004] Purpose of the utility model: In view of the shortcomings and defects of the prior art, this utility model provides a self-locking support flip cover device for rail vehicle pedals, which reduces the size of the movable pedal and realizes the mechanical locking of the flip cover assembly.

[0005] Technical Solution: This utility model discloses a self-locking support flip-top device for a rail vehicle pedal, characterized in that it includes a fixed plate, a flip-top plate, a pedal support wheel assembly, an unlocking limit wheel assembly, a locking support block, a locking pin, and an unlocking ramp; the fixed plate is mounted on the pedal frame, and the fixed plate and the flip-top plate are hinged together by a long shaft, on which several return springs are provided; the fixed plate is connected to the pedal support wheel assembly, and the unlocking limit wheel assembly, the locking support block, and the flip-top plate are fixedly connected; the locking pin is located on the left and right sides of the movable pedal, and is fixedly connected to the movable pedal; the unlocking ramp is located below the front of the movable pedal.

[0006] The aforementioned pedal frame is located on the rail vehicle.

[0007] The movable pedal is located on the rail vehicle.

[0008] The pedal frame moves relative to the movable pedal.

[0009] Beneficial Effects: Compared with the prior art, this utility model has the following significant advantages: This utility model sets several pedal support wheels on the fixed part of the flip-top assembly for lower support during the extension of the movable pedal, allowing the rear support assembly to eliminate a set of rollers and reduce the size of the movable pedal. Locking hooks are provided on both sides of the flip-top assembly, cooperating with the pins on the movable pedal to provide support for the movable pedal when it is closed, thus achieving mechanical locking of the flip-top assembly. The movable part of the flip-top assembly is equipped with an unlocking limit wheel, and an unlocking ramp is provided below the front of the movable pedal. These two features work together to ensure that the flip-top assembly does not affect the normal extension and retraction of the movable pedal. Attached Figure Description

[0010] Figure 1 This is a schematic diagram of the structure of this utility model;

[0011] Figure 2 This is the locked state of the present invention. Figure 1 ;

[0012] Figure 3 This is the locked state of the present invention. Figure 2 ;

[0013] In the diagram, 1 is the fixed plate; 2 is the flip plate; 3 is the pedal support wheel assembly; 4 is the unlocking limit wheel assembly; 5 is the locking support block; 6 is the locking pin; and 7 is the unlocking ramp. Detailed Implementation

[0014] The technical solution of this utility model will be further described below with reference to the accompanying drawings and specific embodiments.

[0015] This utility model discloses a self-locking support flip-top device for a rail vehicle pedal, comprising a fixed plate 1, a flip-top plate 2, a pedal support wheel assembly 3, an unlocking limit wheel assembly 4, a locking support block 5, a locking pin 6, and an unlocking ramp 7. The fixed plate 1 is mounted on the pedal frame, and the fixed plate 1 and the flip-top plate 2 are hinged together by a long shaft, on which several return springs are mounted. The fixed plate 1 is connected to the pedal support wheel assembly 3, and the unlocking limit wheel assembly 4 and the locking support block 5 are fixedly connected to the flip-top plate 2. The locking pin 6 is located on the left and right sides of the movable pedal and is fixedly connected to the movable pedal. The unlocking ramp 7 is located below the front of the movable pedal. The pedal frame is located on the rail vehicle. The movable pedal is located on the rail vehicle. The pedal frame and the movable pedal move relative to each other.

[0016] When the movable pedal begins to retract from the fully open state, the pedal support wheel assembly 3 supports the movable pedal from below, and the unlocking limit wheel assembly 4, under the action of the reset torsion spring, presses tightly against the movable pedal, preventing the flip plate 2 from continuing to swing upward and interfering with the movable pedal.

[0017] When the active pedal approaches the retraction position, the locking pin 6 on the active pedal moves above the locking support block 5. Then, the pedal support wheel assembly 3 begins to disengage from the active pedal. At the same time, the locking pin 6 begins to contact the locking support block 5 and, as the pedal moves backward, forces the flip plate 2 to swing in the closing direction until the pedal support wheel assembly 3 completely disengages from the active pedal.

[0018] After the movable pedal is retracted and locked, the movable pedal, under its own weight or the locking force of the locking assembly, presses against the locking support block 5 through the locking pin 6, keeping the flip plate 2 in the closed position and achieving mechanical self-locking of the flip cover device. At this time, the unlocking limit wheel assembly 4 disengages from the movable pedal, creating a gap with the unlocking ramp 7.

[0019] When the movable pedal is unlocked and extended forward, the movable pedal drives the locking pin 6 to move forward, giving the locking support block 5 room to rotate. At the same time, the unlocking ramp 7 begins to contact and push the unlocking limit wheel assembly 4. Then the flip plate 2 begins to flip, the movable pedal continues to extend, and the pedal support roller assembly 3 begins to support the movable pedal, finally completing the pedal opening action.

[0020] The cover assembly of this utility model has a built-in support structure and a simple structure, which reduces the design requirements of the movable pedal, increases the stability of the pedal movement, and reduces the storage space required for the movable pedal, indirectly reducing the overall size of the pedal. Through cooperation with the locking pin and locking support block on the movable pedal, it achieves the front-end support function of the movable pedal in the locked state and the locking function of the flip cover.

Claims

1. A self-locking support flip-top device for a rail vehicle pedal, characterized in that: It includes a fixed plate (1), a flip plate (2), a pedal support wheel assembly (3), an unlocking limit wheel assembly (4), a locking support block (5), a locking pin (6), and an unlocking ramp (7); the fixed plate (1) is installed on the pedal frame, and the fixed plate (1) and the flip plate (2) are hinged by a long shaft, on which a number of return springs are provided; the fixed plate (1) is connected to the pedal support wheel assembly (3), and the unlocking limit wheel assembly (4), the locking support block (5), and the flip plate (2) are fixedly connected; the locking pin (6) is set on the left and right sides of the movable pedal, and the locking pin (6) is fixedly connected to the movable pedal; the unlocking ramp (7) is set below the front of the movable pedal.

2. The self-locking support flip-top device for rail vehicle pedals according to claim 1, characterized in that: The aforementioned pedal frame is located on the rail vehicle.

3. The self-locking support flip-top device for rail vehicle pedals according to claim 2, characterized in that: The movable pedal is located on the rail vehicle.

4. The self-locking support flip-top device for rail vehicle pedals according to claim 3, characterized in that: The pedal frame moves relative to the movable pedal.

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