Novel linkage rod synchronous seat

Abstract

The utility model discloses a novel linkage rod synchronous seat which comprises a first-stage ramp and a second-stage ramp which are connected with each other. The first-stage ramp and the second-stage ramp are connected with the air spring, and the first-stage ramp and the second-stage ramp are connected with the connecting rod system; the connecting rod system is connected with the linkage rod, and the linkage rod is connected with the synchronous seat through a pin shaft. Initial resistance of ramp release is reduced, and unmanned ramp release is achieved; and under the emergency evacuation condition, operation is easy, and the evacuation efficiency is high.

Description

Technical Field

[0001] The utility model relates to the field of rail vehicle door systems, in particular to a novel linkage rod synchronizing seat. Background Art

[0002] In the emergency evacuation ramp of a rail transit train, there is a set of linkage rods for driving the ramp to flip. The linkage rods are positioned in the circular holes of the synchronizing seat through pin shafts, so as to achieve the rotation of the linkage rods around the pin shafts to drive the ramp to flip.

[0003] The existing linkage rod synchronizing seat can only realize the single movement of the linkage rod, i.e., rotation around the center of the circle, which will cause the problem that the thrust at the initial movement of the linkage rod is extremely large and even cannot be pushed by human force.

[0004] Because the rotation center of the linkage rod cannot move, the linkage rod will be subjected to the force brought by the rotation of the ramp at the initial stage of its own movement, and the movement of the linkage rod will cause the entire linkage system to act. During the movement, the linkage rod needs to overcome the self-gravity of the two-stage ramp components in addition to the acting force for the second-stage ramp to flip, so there will be a phenomenon that the initial force for the ramp to automatically flip is extremely large, which is not conducive to the rapid deployment of the emergency evacuation ramp in an emergency.

[0005] Therefore, it is necessary to develop a novel linkage rod synchronizing seat specifically to overcome the above problems. Summary of the Utility Model

[0006] Purpose of the utility model: Aiming at the deficiencies and defects of the prior art, the utility model provides a novel linkage rod synchronizing seat, which reduces the initial resistance of the ramp release and realizes the unmanned ramp release; in the case of emergency evacuation, the operation is simple and the evacuation efficiency is high.

[0007] Technical solution: A novel linkage rod synchronizing seat of the utility model is characterized in that: it includes a first-stage ramp and a second-stage ramp which are connected to each other; the first-stage ramp and the second-stage ramp are connected to an air spring, and the first-stage ramp and the second-stage ramp are connected to a linkage system; the linkage system is connected to a linkage rod, and the linkage rod is connected to the synchronizing seat through a pin shaft.

[0008] Wherein, the number of the linkage systems is 2, and the linkage systems are located on both side parts of the first-stage ramp and the second-stage ramp.

[0009] Wherein, the number of the air springs is 2, and the air springs are located inside both sides of the first-stage ramp and the second-stage ramp.

[0010] Wherein, the synchronizing seat is provided with a variable trajectory groove for the sliding of the pin shaft.

[0011] Wherein, threaded holes are provided on both sides of the synchronizing seat.

[0012] Among them, the synchronization seat is connected to an external mechanism through bolts passing through threaded holes.

[0013] Among them, the first-level ramp and the second-level ramp are emergency evacuation ramps for rail transit.

[0014] Beneficial effects: Compared with the prior art, the present utility model has the following remarkable advantages: The present utility model is applied to a manned subway train. When an emergency occurs and evacuation is needed, the driver can use a very small operating force to push the ramp forward to release the ramp to the fully deployed state; after the passenger unlocks the ramp, the ramp can be automatically released to the fully deployed state under the action of the air spring without manually pushing the ramp. In an emergency evacuation situation, the operation is simple and the evacuation efficiency is high. The structure of the present utility model is simple, the operating force is significantly reduced, and the operating effect is good. Description of the Drawings

[0015] Figure 1 is a schematic structural diagram of the present utility model;

[0016] Figure 2 is a schematic connection structure diagram of the linkage rod, synchronization seat, and pin shaft of the present utility model;

[0017] Figure 3 is a schematic structural diagram of the released and deployed state of the present utility model;

[0018] Figure 4 is a schematic connection structure diagram of the linkage rod, synchronization seat, and pin shaft in the released and deployed state of the present utility model;

[0019] In the figure, 1 is the linkage rod; 2 is the synchronization seat; 3 is the pin shaft; 4 is the first-level ramp; 5 is the second-level ramp; 6 is the air spring; 7 is the linkage system. Detailed Embodiments

[0020] The technical solution of the present utility model will be further described below in conjunction with the drawings and specific embodiments.

[0021] The novel linkage rod synchronization seat of the present utility model includes a first-level ramp 4 and a second-level ramp 5 that are connected to each other; the first-level ramp 4 and the second-level ramp 5 are connected to the air spring 6, and the first-level ramp 4 and the second-level ramp 5 are connected to the linkage system 7; the linkage system 7 is connected to the linkage rod 1, and the linkage rod 1 is connected to the synchronization seat 2 through the pin shaft 3. Among them, the number of the linkage systems 7 is 2, and the linkage systems 7 are located on both side parts of the first-level ramp 4 and the second-level ramp 5. The number of the air springs 6 is 2, and the air springs 6 are located inside both sides of the first-level ramp 4 and the second-level ramp 5. The synchronization seat 2 is provided with a variable trajectory groove for the sliding of the pin shaft 3. Threaded holes are provided on both sides of the synchronization seat 2. The synchronization seat 2 is connected to an external mechanism through bolts passing through the threaded holes. The first-level ramp 4 and the second-level ramp 5 are emergency evacuation ramps for rail transit.

[0022] During use, the first-level ramp 4 and the second-level ramp 5 are in a retracted and folded state. When the retracted and folded state changes, under the action of the air spring 6, the first-level ramp 4 and the second-level ramp 5 will rotate counterclockwise as a whole. At this time, the linkage rod 1 will move upward along the variable trajectory groove of the synchronous seat 2. Since the rotation center of the linkage rod 1 is in a vertical up-and-down movement state, there is no force generated by the linkage rod 1 to drive the link system 7 to act at this time, and the air spring 6 only needs to overcome the self-gravity of the first-level ramp 4 and the second-level ramp 5. When the first-level ramp 4 and the second-level ramp 5 rotate counterclockwise as a whole to the vertical position, the thrust of the air spring 6 starts to decrease at this time, and continues to push the first-level ramp 4 and the second-level ramp 5 to rotate counterclockwise as a whole. When the ramp rotates more than 90° vertically as a whole, the linkage rod 1 starts to drive the first-level ramp 4 and the second-level ramp 5 to rotate and separate relatively. Under the action of gravity, the ramp can be completely automatically separated.

[0023] The utility model is applied to a manned subway train. When an emergency occurs and evacuation is needed, the driver can use a very small operating force to push the ramp forward to release the ramp to the fully deployed state; after unlocking the ramp, the passengers can automatically release the ramp to the fully deployed state under the action of the air spring without manually pushing the ramp. In the case of emergency evacuation, the operation is simple and the evacuation efficiency is high. The utility model has a simple structure, significantly reduces the operating force, and has a good operation effect.

Claims

1. A novel linkage rod synchronous seat, characterized in that: It includes a first-level ramp (4) and a second-level ramp (5) which are connected to each other; the first-level ramp (4) and the second-level ramp (5) are connected to an air spring (6), and the first-level ramp (4) and the second-level ramp (5) are connected to a link system (7); the link system (7) is connected to a linkage rod (1), and the linkage rod (1) is connected to a synchronous seat (2) through a pin shaft (3).

2. The novel linkage rod synchronous seat according to claim 1, wherein: The number of the link systems (7) is 2, and the link systems (7) are located on both side parts of the first-level ramp (4) and the second-level ramp (5).

3. The novel linkage rod synchronous seat according to claim 2, characterized in that: The number of the air springs (6) is 2, and the air springs (6) are located inside both sides of the first-level ramp (4) and the second-level ramp (5).

4. The novel linkage rod synchronous seat according to claim 1, characterized in that: The synchronous seat (2) is provided with a variable-trajectory groove for the sliding of the pin shaft (3).

5. The novel linkage rod synchronous seat according to claim 4, wherein: Threaded holes are provided on both sides of the synchronous seat (2).

6. The novel linkage rod synchronous seat according to claim 5, wherein: The synchronous seat (2) is connected to an external mechanism through bolts passing through the threaded holes.

7. The novel linkage rod synchronous seat according to claim 1, wherein: The first-level ramp (4) and the second-level ramp (5) are emergency evacuation ramps for rail transit.

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