Pedal cab apron for high-speed rail train

Abstract

The utility model discloses a footboard for a high-speed train, which relates to the technical field of footboards for railway trains and comprises an embedded footboard and two groups of supporting mechanisms, and any supporting mechanism comprises two strip-shaped supporting plates. Centering mechanisms are symmetrically arranged at the two ends of the embedded cab apron, and any centering mechanism is connected with the two corresponding strip-shaped supporting plates in a sliding mode. According to the design, on one hand, the embedded cab apron is used, the cab apron can generate parallelogram deformation when a train performs curvilinear motion, the operation requirement is met, the probability of flash seams is reduced, and the safety of passengers is guaranteed; due to the fact that in the running process of a train, especially when the train runs in a curve mode, the foot plate can displace, a connecting mechanism of the foot plate and the end of a train compartment can be stretched or compressed, then a flash seam occurs at the position, and the plate spring can absorb impact and cushion shock in the process. The two symmetrically-installed plate springs can enable the inlaid cab apron to be always located between two adjacent carriages, and then the probability that a flash seam occurs between the two adjacent carriages is reduced.

Description

Technical Field

[0001] The utility model relates to the technical field of a step board for railway trains, and in particular to a step board for high-speed railway trains. Background Art

[0002] The inner windshield of a railway train generally includes a bellows assembly and a pedal assembly, which is installed between two adjacent carriages to provide a passage between the carriages, allowing passengers to pass between the carriages safely and comfortably.

[0003] The windshield inside the EMU is of a folding-roof structure with an overlapped ferry. The upper surface of the ferry has a smooth transition to the train floor, making it convenient for passengers, luggage carts and trolleys to pass through.

[0004] The pedal assembly includes a flip pedal and a fixed pedal fixed at the vehicle end, which form a complete inner windshield ferry, together providing a safe and reliable workshop passage for passengers. The fixed pedal is installed on the steel structure at the vehicle end, generally consisting of a pedal support and a pedal. The flip pedal is connected to the fixed pedal.

[0005] During the running of a railway train, there is a certain gap between two adjacent carriages. The distance between two adjacent carriages will change during the straight or curved running of the train. The change in the distance between two adjacent carriages will cause the step board to not be centered between the two adjacent carriages. At the same time, the step board of a general subway in the prior art is two plates overlapped with each other, which will cause a scissor-shaped gap between the step board and the carriage when the train runs on a curve. If the gap is too large, safety accidents are likely to occur.

[0006] Therefore, a step board for high-speed train is proposed. Utility Model Content

[0007] The utility model aims to overcome the deficiencies of the prior art and provide a step board for high-speed trains.

[0008] The purpose of this utility model is achieved through the following technical solutions:

[0009] A step board for high-speed trains, comprising an inlaid step board and two groups of supporting mechanisms respectively connected to the ends of two adjacent carriages, any of the above supporting mechanisms comprising two strip support plates, the two strip support plates being connected to the ends of the corresponding carriages and arranged in parallel and spaced apart; centering mechanisms are symmetrically arranged at both ends of the above inlaid step board, and any of the above centering mechanisms is slidably connected to the corresponding two strip support plates.

[0010] Further, in the utility model, any of the above-mentioned centering mechanisms includes a sliding mechanism and a centering piece, the above-mentioned sliding mechanism includes a crossbeam and two guide wheels symmetrically arranged at both ends of the above-mentioned crossbeam, the above-mentioned crossbeam is connected to the above-mentioned inlaid ferry; any of the above-mentioned guide wheels is rotatably connected to the above-mentioned crossbeam, the two above-mentioned guide wheels are respectively abutted against the corresponding two above-mentioned strip support plates, and the movable direction of any of the above-mentioned guide wheels is the same as the extension direction of the above-mentioned strip support plates; the above-mentioned centering piece is arranged on the above-mentioned crossbeam and connected to the car end of the corresponding car.

[0011] Furthermore, in the utility model, the centering member comprises a leaf spring with an arc-shaped structure and a leaf spring seat arranged in the middle of the leaf spring, both ends of the leaf spring are connected to the cross beam; the leaf spring seat is connected to the car end of the corresponding car.

[0012] The beneficial effects of the utility model are:

[0013] The utility model provides a step board for high-speed railway trains. On the one hand, the design uses an inlaid step board. When the train moves in a curve, the step board can be deformed into a parallelogram, which meets the operation requirements, reduces the probability of flash cracks, increases the driving safety of the vehicle, and ensures the safety of passengers. Since the step board will be displaced during the operation of the train, especially when running in a curve, the connection mechanism between the step board and the end of the train car will be stretched or compressed, which will cause flash cracks to appear here. The leaf spring can absorb impact and cushion the shock in this process. Two symmetrically installed leaf springs can make the inlaid step board always between two adjacent cars, thereby reducing the probability of flash cracks between two adjacent cars. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 It is a schematic diagram of the structure of an embodiment of the utility model;

[0015] Figure 2 It is a schematic diagram of the structure of an embodiment of the utility model;

[0016] Figure 3 It is a top view of an embodiment of the utility model.

[0017] In the figure: 101-inlaid ferry; 201-strip support plate; 301-crossbeam; 302-guide wheel; 303-leaf spring; 304-leaf spring seat. DETAILED DESCRIPTION

[0018] The following will be combined with the embodiments to clearly and completely describe the technical solution of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments of the utility model, all other embodiments obtained by those skilled in the art without creative work are within the scope of protection of the utility model.

[0019] See also Figure 1-3 , the utility model provides a technical solution:

[0020] A high-speed train tread plate includes an inlaid tread plate 101 and two sets of support mechanisms respectively connected to the ends of two adjacent carriages, and any support mechanism includes two strip support plates 201, which are connected to the ends of the corresponding carriages and arranged in parallel and spaced apart; two centering mechanisms are symmetrically arranged at both ends of the inlaid tread plate 101, and any centering mechanism is slidably connected to the corresponding two strip support plates 201. The inlaid tread plate 101 is a prior art, and its structure will not be described in detail here.

[0021] Specifically, any centering mechanism includes a sliding mechanism and a centering piece. The sliding mechanism includes a crossbeam 301 and two guide wheels 302 symmetrically arranged at both ends of the crossbeam 301. The crossbeam 301 is connected to the inlaid ferry 101; any guide wheel 302 is rotatably connected to the crossbeam 301, and the two guide wheels 302 are respectively abutted against the corresponding two strip support plates 201. The movable direction of any guide wheel 302 is the same as the extension direction of the strip support plate 201; the centering piece is arranged on the crossbeam 301 and is connected to the car end of the corresponding car.

[0022] Specifically, the centering member includes an arc-shaped leaf spring 303 and a leaf spring seat 304 disposed in the middle of the leaf spring 303. Both ends of the leaf spring 303 are connected to the crossbeam 301; the leaf spring seat 304 is connected to the vehicle end of the corresponding carriage. In other implementations of this embodiment, the leaf spring 303 can also be replaced by a spring. When the coupler is unwound, the inlaid ferry 101 can be turned up by using an auxiliary tool pull rod.

[0023] When the distance between two adjacent carriages increases or decreases during the train operation, the leaf spring 303 will be compressed or stretched, and the inlaid ferry 101 will be displaced under the "push" of the leaf spring 303. During this process, the guide wheel 302 moves on the strip support plate 201 along the extension direction of the strip support plate 201, and the leaf spring 303 can absorb part of the energy, thereby reducing the displacement of the inlaid ferry 101. When the train runs smoothly, the distance between the two adjacent carriages does not change, and the inlaid ferry 101 is reset to the middle position of the connection between the two adjacent carriages under the action of the two leaf springs 303, thereby reducing the probability of flash gaps between the two adjacent carriages.

[0024] The above is only a preferred embodiment of the utility model. It should be understood that the utility model is not limited to the form disclosed herein, and should not be regarded as excluding other embodiments, but can be used in various other combinations, modifications and environments, and can be modified within the scope of the concept described herein through the above teachings or the technology or knowledge of the relevant field. The changes and modifications made by those skilled in the art do not deviate from the spirit and scope of the utility model, and should be within the scope of protection of the claims attached to the utility model.

Claims

1. A step board for high-speed trains, characterized in that: The invention comprises an inlaid crossing board (101) and two groups of supporting mechanisms respectively connected to the ends of two adjacent carriages, wherein any of the supporting mechanisms comprises two strip-shaped supporting plates (201), the two strip-shaped supporting plates (201) are connected to the ends of the corresponding carriages and are arranged in parallel and spaced apart; two centering mechanisms are symmetrically arranged at both ends of the inlaid crossing board (101), and any of the centering mechanisms is slidably connected to the corresponding two strip-shaped supporting plates (201).

2. The high-speed train step board according to claim 1, characterized in that: Any of the centering mechanisms comprises a sliding mechanism and a centering member, the sliding mechanism comprises a crossbeam (301) and two guide wheels (302) symmetrically arranged at both ends of the crossbeam (301), the crossbeam (301) is connected to the inlaid ferry (101); any of the guide wheels (302) is rotatably connected to the crossbeam (301), the two guide wheels (302) are respectively abutted against the corresponding two strip support plates (201), and the movable direction of any of the guide wheels (302) is the same as the extension direction of the strip support plates (201); the centering member is arranged on the crossbeam (301) and connected to the car end of the corresponding car.

3. A step board for high-speed train according to claim 2, characterized in that: The centering member comprises a leaf spring (303) with an arc-shaped structure and a leaf spring seat (304) arranged in the middle of the leaf spring (303); both ends of the leaf spring (303) are connected to the crossbeam (301); and the leaf spring seat (304) is connected to the vehicle end of the corresponding vehicle compartment.

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