Wheelchair lifting device for railway vehicle

Abstract

The utility model discloses a wheelchair lifting device for a railway vehicle, which comprises a bearing frame, a driving device, a buffer device, a housing, a guide device and a platform assembly, and the bearing frame is fixed on a railway vehicle body through an upper bearing seat and a lower bearing seat; the upper parts of the driving device and the buffering device are connected with the bearing frame through hinges, and the lower parts are connected with the platform assembly; the housing is fixed on the bearing frame; the lower portion of the guiding device is connected with the platform assembly through a hinge, and the upper portion is connected with the bearing frame through a linear rail. The device has the characteristics of simple structure, reliable performance and simplicity and convenience in operation.

Description

Technical Field

[0001] The utility model relates to the field of rail vehicles, in particular to a wheelchair lifting device for rail vehicles. Background Art

[0002] In the field of rail transit, the wheelchair lifting device is directly fixed on the vehicle body. When the vehicle stops at the station, the side door of the vehicle is opened and the lifting device is moved outside the vehicle. The wheelchair carrying the disabled person can be lifted up and down to eliminate the height difference between the platform and the vehicle floor.

[0003] Existing wheelchair lifting devices are mostly driven by hand-cranked screws or hydraulic cylinders. The former takes up a lot of space and is time-consuming and laborious for operators; the latter has a complex structure and requires a dedicated hydraulic station. The hydraulic system has the risk of oil leakage and is not friendly to the vehicle's use environment, affecting its reliability.

[0004] Therefore, it is necessary to develop a new type of wheelchair lifting device for rail vehicles in a targeted manner to solve the problems of large space occupation, complex operation, and complex structure existing in the prior art. Utility Model Content

[0005] Purpose of the utility model: In view of the shortcomings and defects of the prior art, the utility model provides a wheelchair lifting device for rail vehicles, which has the characteristics of simple structure, reliable performance and easy operation.

[0006] Technical solution: The utility model is a wheelchair lifting device for rail vehicles, characterized in that it includes a load-bearing frame, a driving device, a buffer device, a cover, a guide device and a platform assembly, the load-bearing frame is fixed to the rail vehicle body through upper and lower bearing seats; the upper parts of the driving device and the buffer device are connected to the load-bearing frame through hinges, and the lower parts are connected to the platform assembly; the cover is fixed on the load-bearing frame; the lower part of the guide device is connected to the platform assembly through a hinge, and the upper part is connected to the load-bearing frame through a linear track.

[0007] Wherein, the load-bearing frame is provided with an electric control system and a positioning locking device.

[0008] Wherein, the platform component is connected to the safety handrail through a hinge.

[0009] Wherein, the driving device is a single-pole or multi-stage electric push rod, and the driving device is provided with a low-temperature brushless / servo motor.

[0010] Wherein, the guiding device is a double linear guide rail structure.

[0011] Wherein, the buffer device is a tension-type gas spring.

[0012] Wherein, the platform component is divided into four sections, and the platform component is connected to the guide device through a hinge.

[0013] Beneficial effects: Compared with the prior art, the utility model has the following significant advantages: the utility model has a small collapsed volume, occupies little vehicle space, has a compact structure, is easy to operate, is durable and cost-controlled, and can be applied to various types of rail vehicles and other vehicles. At the same time, during the lifting process, the wheelchair will not roll off due to the tilt of the load-bearing platform, and is safer. BRIEF DESCRIPTION OF THE DRAWINGS

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

[0015] In the figure, 1 is a load-bearing frame, 2 is a driving device, 3 is a buffer device, 4 is a cover, 5 is a guide device, 6 is a platform assembly, 7 is a safety handrail, and 8 is an electric control system. DETAILED DESCRIPTION

[0016] The technical solution of the utility model is further described below in conjunction with the accompanying drawings and specific implementation methods.

[0017] The utility model of the wheelchair lifting device for rail vehicles comprises a bearing frame 1, a driving device 2, a buffer device 3, a cover 4, a guide device 5 and a platform assembly 6. The bearing frame 1 is fixed to the rail vehicle body through upper and lower bearing seats; the upper parts of the driving device 2 and the buffer device 3 are connected to the bearing frame 1 through hinges, and the lower parts are connected to the platform assembly 6; the cover 4 is fixed to the bearing frame 1; the lower part of the guide device 5 is connected to the platform assembly 6 through a hinge, and the upper part is connected to the bearing frame 1 through a linear track. Among them, an electric control system 8 is provided on the bearing frame 1. The platform assembly 6 is connected to the safety handrail 7 through a hinge.

[0018] The load-bearing frame adopts a high-strength alloy steel welded structure, which can not only meet the load-bearing requirements of the system, but also adapt to the low-temperature use environment requirements of -40℃. It is integrated with a rotating arm, hinged on the vehicle, and fixed brackets of various functional components. The load-bearing frame is integrated with a positioning device, which locks and fixes the lifting device after it is stored on the vehicle and rotated out of the vehicle to prevent the platform from accidentally rotating during the operation and operation of the train. To ensure its corrosion resistance, the surface is painted.

[0019] The guiding device adopts a double linear guide structure to ensure sufficient rigidity of the mechanism. The slider is fixed on the load-bearing frame, and the guide rail is fixed on the guide column of the platform, and rises and falls together with the platform.

[0020] The buffer device adopts a tension-type gas spring solution, one end of which is hinged to the load-bearing frame and the other end is hinged to the platform. It provides buffering and damping effects during the platform lifting process, thereby improving the comfort of passengers.

[0021] The platform assembly is divided into four sections and is hingedly connected to the guide device. When unfolded, it can hold the wheelchair and the assistant. After folding and storing, it can be fixed in the specified space on the vehicle. It is also equipped with anti-skid devices and safety handrails to prevent the wheelchair from sliding on the platform and provide passengers with handrails to improve safety.

[0022] The cover shields, locks and fixes the exposed part of the lifting device after it is retracted on the vehicle, ensuring its beauty and safety when not in use and avoiding accidental operation by unauthorized personnel.

[0023] The electric control system is divided into a power supply module, a control unit, an audible and visual warning device, and a control panel fixed on the vehicle body and a control panel fixed on the platform, which can facilitate the operator to operate the platform on the vehicle or on the platform. Its low temperature adaptability and IP protection grade guarantee are fully considered.

[0024] When in use, when the side door of the passenger compartment is opened, the device is unlocked on the vehicle, rotated and pushed out of the vehicle, then positioned and locked, and then the lifting platform and guardrails are manually unfolded; after the wheelchair is transferred to the platform, the platform is electrically driven to rise and fall, so that it can be transferred from the platform to the vehicle. After completing the task, the device is recovered and fixed to the vehicle in the reverse order.

[0025] Specifically, when the train stops on the platform and the door is opened, the operator uses a special key to unlock the wheelchair lifting device, the sound and light warning device starts working, the device is rotated 180° to the outside of the car and locked, and then the pedals and safety handrails on the platform are manually unfolded. At this time, the wheelchair user on the car can transfer to the platform. The operator controls the platform to descend to the platform height through the control button on the car or the control device on the platform to achieve the wheelchair getting off; conversely, the wheelchair can be transferred from the platform to the train. After the lifting device is used, the platform is folded and stored, the external positioning is canceled, and then rotated 180° back to the car. The device is fixed to the car through the lock on the cover, and the sound and light warning device stops working.

[0026] The utility model solves the problems of low travel and load-bearing capacity, insufficient adaptability to ambient temperature, complex structure and low reliability of existing wheelchair lifting devices, while ensuring stable and reliable lifting action of the device.

Claims

1. A wheelchair lifting device for a rail vehicle, characterized in that: The invention comprises a bearing frame (1), a driving device (2), a buffer device (3), a cover (4), a guide device (5) and a platform assembly (6); the bearing frame (1) is fixed to the rail vehicle body via upper and lower bearing seats; the upper parts of the driving device (2) and the buffer device (3) are connected to the bearing frame (1) via hinges, and the lower parts are connected to the platform assembly (6); the cover (4) is fixed to the bearing frame (1); the lower part of the guide device (5) is connected to the platform assembly (6) via hinges, and the upper part is connected to the bearing frame (1) via a linear track.

2. The wheelchair lifting device for rail vehicles according to claim 1, characterized in that: An electric control system (8) is provided on the supporting frame (1).

3. The wheelchair lifting device for rail vehicles according to claim 1, characterized in that: The platform assembly (6) is connected to the safety handrail (7) via a hinge.

4. The wheelchair lifting device for rail vehicles according to claim 1, characterized in that: The driving device (2) is a single-pole or multi-stage electric push rod, and the driving device (2) is provided with a low-temperature brushless / servo motor.

5. The wheelchair lifting device for rail vehicles according to claim 1, characterized in that: The guiding device (5) is a double linear guide rail structure.

6. The wheelchair lifting device for rail vehicles according to claim 1, characterized in that: The buffer device (3) is a tension-type gas spring.

7. The wheelchair lifting device for rail vehicles according to claim 1, characterized in that: The platform component (6) is divided into four sections, and the platform component (6) is connected to the guide device (5) via a hinge.

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