Pedal overturning and positioning structure for rail transit

Abstract

The utility model discloses a kind of pedal overturning positioning structures for rail transit, including the ear seat, pull plate and positioning shaft connected in turn;The ear seat and pull plate are connected by guide pin, pin shaft;The positioning sleeve is set outside the guide pin, guide pin is positioned by bushing, spring is equipped between guide pin and positioning sleeve.The utility model is simple in structure, convenient to use, improves the safety reliability and use range of automatic evacuation pedal.

Description

Technical Field

[0001] This utility model relates to the field of rail transit, and in particular to a treadmill flipping and positioning structure for rail transit. Background Technology

[0002] Currently, in rail transit train systems, the automatic evacuation step under the passenger compartment door has a problem of unstable tilting and positioning, resulting in insufficient stability.

[0003] Therefore, it is necessary to develop a new type of tread rotation and positioning structure for rail transit to improve the safety and reliability of automatic evacuation treads. Utility Model Content

[0004] Purpose of the utility model: In view of the shortcomings and defects of the existing technology, this utility model provides a flip-up positioning structure for rail transit, which is simple in structure, easy to use, and improves the safety, reliability and application range of automatic evacuation pedals.

[0005] Technical solution: The present invention relates to a treadle flipping and positioning structure for rail transit, characterized in that: it includes an ear seat, a pull plate and a positioning shaft connected in sequence; the ear seat and the pull plate are connected by a guide pin and a pin shaft; a positioning sleeve is sleeved on the outside of the guide pin, the guide pin is positioned by a bushing, and a spring is provided between the guide pin and the positioning sleeve.

[0006] The positioning shaft is positioned by an M16 nut, and a washer is provided between the M16 nut and the pull plate.

[0007] The pin is positioned by a cotter pin, and a washer is provided at the pin.

[0008] The guide pin is connected to the M20 nut.

[0009] The spring is sleeved on the guide pin.

[0010] The pin is located inside the flanged bearing sleeve.

[0011] The ear seat is fixed to the automatic evacuation tread of the rail transit.

[0012] Beneficial effects: Compared with the prior art, this utility model has the following significant advantages: In emergency situations, the automatic evacuation pedal of this utility model unfolds and is positioned by a flip-and-position structure; it can be used under various working conditions and is safe and reliable. Its simple structure and ease of use meet the owner's new demands for versatility, low cost, and convenient maintenance, thus improving the safety, reliability, and application range of the automatic evacuation pedal. Attached Figure Description

[0013] Figure 1 This is a schematic diagram of the structure of the present invention in its unfolded state. Figure 1 ;

[0014] Figure 2 This is a schematic diagram of the structure of the present invention in its unfolded state. Figure 2 ;

[0015] Figure 3 This is a schematic diagram of the structure of the present invention in its recycling state. Figure 1 ;

[0016] Figure 4 This is a schematic diagram of the structure of the present invention in its recycling state. Figure 2 ;

[0017] In the diagram, 1 is the ear seat; 2 is the pull plate; 3 is the positioning sleeve; 4 is the guide pin; 5 is the bushing; 6 is the pin shaft; 7 is the positioning shaft; 8 is washer one; 9 is the M16 nut; 10 is washer two; 11 is the cotter pin; 12 is the M20 nut; 13 is the spring; and 14 is the flanged bearing sleeve. Detailed Implementation

[0018] The technical solution of this utility model will be further described below with reference to the accompanying drawings and specific embodiments.

[0019] The pedal flipping positioning structure of this utility model belongs to the rotary motion design scheme; the guide pin is manually pulled outward, and the pull plate rotates downward under its own gravity; the flipping positioning structure can automatically evacuate the pedal under different load conditions, which is simple and convenient, and easy to debug and maintain.

[0020] This utility model discloses a flip-up positioning structure for a rail transit tread, comprising a lug seat 1, a pull plate 2, and a positioning shaft 7 connected in sequence. The lug seat 1 and the pull plate 2 are connected by a guide pin 4 and a pin shaft 6. A positioning sleeve 3 is fitted over the guide pin 4, and the guide pin 4 is positioned by a bushing 5. A spring 13 is provided between the guide pin 4 and the positioning sleeve 3. The positioning shaft 7 is positioned by an M16 nut 9, and a washer 8 is provided between the M16 nut 9 and the pull plate 2. The pin shaft 6 is positioned by a cotter pin 11, and a washer 10 is provided at the pin shaft 6. The guide pin 4 is connected to an M20 nut 12. The spring 13 is fitted onto the guide pin 4. The pin shaft 6 is located inside a flanged bearing sleeve 14. The lug seat 1 is fixed to the automatic evacuation tread of the rail transit.

[0021] In use, first fix the ear seat 1 onto the automatic evacuation pedal, then connect the pull plate 2, positioning sleeve 3, guide pin 4, bushing 5, positioning shaft 7, and spring 13 respectively through pin 6, washer 1 8, M16 nut 9, washer 2 10, cotter pin 11, M20 nut 12, spring 13, and flanged bearing sleeve 14 to form the pedal flipping positioning structure.

[0022] Before the pedal is unfolded, the pull plate 2 is subjected to an upward rotational force and rotates at a certain angle. The guide pin 4 is inserted into the positioning hole of the pull plate 2 under the spring 13, completing the rotational positioning and locking, that is, the pedal flip positioning structure is locked. After the pedal is retracted, the pull plate 2 rotates downward to its natural state under its own gravity by the puller pulling the guide pin 4, that is, the pedal flip positioning structure is opened.

[0023] This invention enables rapid positioning of the treadplate after manual operation, achieving a usable state. The flipping and positioning structure is simple, has a high load-bearing capacity, and is highly reliable. It requires no electrical or pneumatic control, is easy to operate, and offers high safety in emergencies. It is suitable for automatic evacuation treadplates on railway tracks, has minimal impact on existing treadplate dimensions, and can be used in various working conditions. It meets the requirements of automatic evacuation treadplates under high load conditions while minimizing impact on existing railway vehicle automatic evacuation treadplates, allowing passengers to operate and use it as quickly as possible in the event of power or pneumatic failure.

Claims

1. A treadmill flipping and positioning structure for rail transit, characterized in that: It includes an ear seat (1), a pull plate (2) and a positioning shaft (7) connected in sequence; the ear seat (1) and the pull plate (2) are connected by a guide pin (4) and a pin shaft (6); a positioning sleeve (3) is sleeved on the outside of the guide pin (4), the guide pin (4) is positioned by a bushing (5), and a spring (13) is provided between the guide pin (4) and the positioning sleeve (3).

2. The treadle flipping and positioning structure for rail transit according to claim 1, characterized in that: The positioning shaft (7) is positioned by an M16 nut (9), and a washer (8) is provided between the M16 nut (9) and the pull plate (2).

3. The treadle flipping and positioning structure for rail transit according to claim 1, characterized in that: The pin (6) is positioned by a cotter pin (11), and a washer (10) is provided at the pin (6).

4. The treadle flipping and positioning structure for rail transit according to claim 1, characterized in that: The guide pin (4) is connected to the M20 nut (12).

5. The treadle flipping and positioning structure for rail transit according to claim 1, characterized in that: The spring (13) is fitted onto the guide pin (4).

6. The treadle flipping and positioning structure for rail transit according to claim 1, characterized in that: The pin (6) is located inside the flange bearing sleeve (14).

7. The treadle flipping and positioning structure for rail transit according to any one of claims 1-6, characterized in that: The ear seat (1) is fixed to the automatic evacuation pedal of the rail transit.

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