Anti-falling device for emergency door of rail transit platform
By designing anti-falling devices with mounting seats, fixing plates, anti-falling cylinders and rolling sleeves, the loosening and friction problems caused by vibration and self-weight of the emergency doors on the traditional rail transit platform are solved, and stable opening and extended use are achieved in emergency situations life.
Patent Information
- Application Number
- CN202322899643.1
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2023-10-27
- Publication Date
- 2024-12-10
- Estimated Expiration
- 2033-10-27
AI Technical Summary
During the operation of the emergency door of the traditional rail transit platform, the installation is loose due to vibration and self-weight, which may cause the door body to fall, sensor failure and lock groove friction, resulting in the problem of the lower part wiping the floor when the door cannot open normally or open in an emergency.
A fall-proof device including a mounting base, a fixing plate, an anti-falling cylinder and a rolling sleeve is designed. The anti-falling cylinder is fixed on the mounting base by welding, and an elastic retaining ring and a rolling sleeve are provided on the anti-falling cylinder, and the rolling sleeve is The anti-fall cylinder is slidingly matched to reduce friction, and the anti-fall cylinder is supported through the limit opening groove when the door is closed, ensuring that the door body can open normally in an emergency situation.
Effectively prevent the emergency door from opening in an emergency or the lower part is scrubbed on the floor, ensure the stability and reliability of the door body during long-term use, extend the service life of the rolling sleeve, and simplify the installation process.
Smart Images
Figure CN222141109U_ABST
Abstract
Description
Technical Field
[0001] The utility model belongs to the field of rail transit platform doors, and in particular relates to an anti-falling device for rail transit platform emergency doors. Background Art
[0002] The rail transit platform emergency door is an exit for passengers to evacuate in an emergency. It is used to provide an emergency escape route when the train stops at the platform. It is usually located at both ends of the train car and has a connecting passage between the platform.
[0003] At present, traditional emergency doors are usually side-opening doors, and the door body is installed on the column through hinges, or the door shaft seat, shaft sleeve, door shaft and other parts are installed on the door lintel and threshold. In order to facilitate on-site installation and commissioning of the door body, strip holes are used on the parts for installation. During operation, the emergency door body is in a closed state for a long time. Due to the vibration caused by the long-term passage of trains and the deadweight of the door body, the door body mounting bolts may become loose, the hinged end of the door body may have a hanging angle, the free end of the door body may fall, causing sensor induction failure, or causing greater friction between the door lock and the lock slot. In an emergency, the door body cannot be opened or the lower part of the door body rubs against the floor when it is opened. Summary of the invention
[0004] The utility model aims to provide a falling prevention device for emergency doors of rail transit platforms in view of the deficiencies in the prior art. The device has a simple structure and is easy to install, and can prevent the emergency doors of the platforms from falling.
[0005] The purpose of the utility model is achieved in this way:
[0006] A fall prevention device for an emergency door of a rail transit platform comprises the platform emergency door and a platform emergency door column. The platform emergency door is a side-opening door. An fall prevention device is installed on the platform emergency door. The fall prevention device comprises a mounting seat, a fixing plate, a fall prevention cylinder and a rolling sleeve. The fall prevention cylinder is fixed on the mounting seat. The mounting seat and the fixing plate are located on both sides of a folded edge of the platform emergency door. The mounting seat and the fixing plate are fixedly connected by bolts. A sliding rolling sleeve is arranged on the fall prevention cylinder. An elastic retaining ring is arranged at the free end of the fall prevention cylinder to limit the axial position of the rolling sleeve. When the platform emergency door is closed, the fall prevention cylinder and the rolling sleeve are inserted into a limiting opening groove arranged on the column to support the platform emergency door.
[0007] The mounting seat is fixed to the anti-falling cylinder by welding.
[0008] The mounting seat and the fixing plate are both provided with three mounting fixing holes.
[0009] The notch of the position-limiting opening slot is provided with a guiding inclined surface.
[0010] The beneficial effects of the utility model are as follows: an anti-fall device for rail transit platform emergency doors is produced, including a mounting seat, a fixing plate, an anti-fall cylinder, and a rolling sleeve. The anti-fall cylinder is fixed on the mounting seat, and the mounting seat and the fixing plate are located on both sides of the folding edge of the platform emergency door. The mounting seat and the fixing plate are fixedly connected by bolts, and the structure is simple and easy to install; a rolling sleeve is arranged on the anti-fall cylinder, and the rolling sleeve and the anti-fall cylinder are slidably matched during the opening and closing process of the door body, so as to reduce the friction between the rolling sleeve and the column, so that the door body is easy to open and close, and the rolling sleeve protects and prolongs the service life of the anti-fall cylinder; an elastic retaining ring is arranged at the free end of the anti-fall cylinder to limit the axial position of the rolling sleeve; when the door body is in a closed state, the anti-fall cylinder and the rolling sleeve slide into the limit opening groove arranged on the column through the guide slope, and keep in contact with the lower edge of the limit opening groove, so as to prevent the platform emergency door from falling. BRIEF DESCRIPTION OF THE DRAWINGS
[0011] Figure 1 It is a schematic diagram of the structure of the utility model;
[0012] Figure 2 This is the installation diagram of the anti-fall device;
[0013] Figure 3 It is a schematic diagram of the structure of the upper limit opening slot of the column. Implementation
[0014] Further description is given below in conjunction with the accompanying drawings and specific implementation methods.
[0015] See also Figures 1 to 3 , an embodiment of an anti-falling device for an emergency door of a rail transit platform, comprising a mounting seat 1, a fixing plate 2, an anti-falling cylinder 3, and a rolling sleeve 4. The anti-falling cylinder 3 is fixed to the mounting seat 1 by welding or threaded hole matching. The mounting seat 1 and the fixing plate 2 are located on both sides of the folding edge 7 on the platform emergency door 6 or the end door. Three mounting and fixing holes are provided on the mounting seat 1 and the fixing plate 2, and bolts pass through the mounting and fixing holes to fix the mounting seat 1 and the fixing plate 2. A rolling sleeve 4 is provided on the anti-falling cylinder 3, and is used for the rolling sleeve 4 to slide with the anti-falling cylinder 3 during the opening and closing process of the platform emergency door 6 or the end door, so as to reduce the friction between the rolling sleeve 4 and the column 9, and the rolling sleeve 4 is made of wear-resistant material to protect and extend the service life of the anti-falling cylinder 3. An elastic retaining ring 5 is provided at the free end of the anti-falling cylinder 3 to limit the axial position of the rolling sleeve 4. During the closing process of the platform emergency door 6 or the end door, the rolling sleeve 4 contacts the limiting opening groove 8 on the column 9, and the rolling sleeve 4 slides with the anti-falling cylinder 3. The anti-falling cylinder 3 and the rolling sleeve 4 slide into the limiting opening groove 8 set on the column through the guiding inclined surface, and keep in contact with the lower edge of the limiting opening groove 8. The anti-falling cylinder 3 is supported by the limiting opening groove 8, which prevents the platform emergency door 6 or the end door from falling.
[0016] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modification made to the present invention by those skilled in the art without departing from the spirit of the present invention shall fall within the protection scope of the present invention.
Claims
1. A falling prevention device for an emergency door on a rail transit platform, comprising a platform emergency door (6) and a platform emergency door column (9), wherein the platform emergency door (6) is a side-opening door, and is characterized in that: An anti-fall device is installed on the platform emergency door (6), and the anti-fall device comprises a mounting seat (1), a fixing plate (2), an anti-fall cylinder (3), and a rolling sleeve (4). The anti-fall cylinder (3) is fixed on the mounting seat (1). The mounting seat (1) and the fixing plate (2) are located on both sides of the folded edge (7) on the platform emergency door (6), and are fixedly connected to the mounting seat (1) and the fixing plate (2) by bolts. A slidingly matched rolling sleeve (4) is provided on the anti-fall cylinder (3), and an elastic retaining ring (5) is provided at the free end of the anti-fall cylinder (3) to limit the axial position of the rolling sleeve (4). When the platform emergency door (6) is closed, the anti-fall cylinder (3) and the rolling sleeve (4) are snapped into a limiting opening groove (8) provided on the column (9) to support the platform emergency door (6).
2. The anti-falling device for the emergency door of a rail transit platform according to claim 1, characterized in that: The mounting seat (1) is fixed to the anti-falling cylinder (3) by welding.
3. The anti-falling device for the emergency door of a rail transit platform according to claim 1 is characterized in that: The mounting seat (1) and the fixing plate (2) are both provided with three mounting holes.
4. The anti-falling device for the emergency door of a rail transit platform according to claim 1 is characterized in that: The notch of the position-limiting opening slot (8) is provided with a guiding inclined surface.