CN-117966634-B - Insulation foundation structure for mounting platform door

Abstract

The invention discloses an insulating foundation structure for installing a platform door, which belongs to the field of rail transit platform doors and comprises a box-type platform plate and at least two supporting columns, wherein the edge of the box-type platform plate provides an installation foundation for the platform door, insulating supports are arranged between the box-type platform plate and the supporting columns, and the supporting columns are arranged on the ground and used for supporting the box-type platform plate. The invention is arranged in the main body structure of the station platform layer and positioned at the parking edge of the vehicle, provides a waiting platform for passengers and provides a mounting foundation for platform doors. The insulating support insulates the box-type station platform plate from the supporting upright post, so that the box-type station platform plate and the station door arranged on the box-type station platform plate are integrally insulated from the station ground. The insulating support is positioned at the bottom of the box type platform plate and on the supporting upright post, and the box type platform plate is erected, so that the whole platform door installation foundation is insulated. The invention solves the problems of insulation failure of the platform plate and electric shock potential safety hazard of passengers caused by the influence of water stains, stains and the like of the platform layer in the later operation and use process.

Inventors

• LI XIGUANG
• YANG JIANXING
• XU BUSUAN
• LI HANQING
• YE RU
• ZHAO WEI
• CHENG JUN
• CHEN MIN

Assignees

• 中铁电气化勘测设计研究院有限公司

Dates

Publication Date

20260505

Application Date

20240205

Claims (9)

1. 1. The insulation foundation structure for installing the platform door is characterized by comprising a box-type platform plate (1) and at least two supporting columns (2), wherein the edge of the box-type platform plate (1) provides an installation foundation for the platform door (8), insulation supports (3) are arranged between the box-type platform plate (1) and the supporting columns (2), and the supporting columns (2) are arranged on the ground and used for supporting the box-type platform plate (1); the insulating support (3) comprises an upper steel plate (31) and a lower steel plate (32), an insulating pad (33) is arranged between the upper steel plate (31) and the lower steel plate (32), a sealing cover (34) is arranged around the upper steel plate (31) and the lower steel plate (32), and the insulating pad (33) is isolated from the outside by the sealing cover (34) and the upper steel plate (31) and the lower steel plate (32).
2. 2. The insulation foundation structure for installing the platform door according to claim 1, wherein the box-type platform plate (1) is of a hollow concrete box body structure, an upper embedded steel plate seat (11) is arranged at the joint of the bottom surface of the box-type platform plate (1) and the insulation support (3), and the bottom surface of the box-type platform plate (1) is in contact connection with the insulation support (3) through the upper embedded steel plate seat (11) and an upper steel plate (31).
3. 3. An insulating foundation structure for installing a platform door according to claim 2, wherein a lower embedded steel plate (21) is arranged on one side of the supporting upright (2) connected with the insulating support (3), and the supporting upright (2) is connected with the insulating support (3) in a contact mode through the lower embedded steel plate (21) and the lower steel plate (32).
4. 4. An insulating substructure for the installation of platform doors according to claim 2, characterised in that the upper (31) and lower (32) steel plates are each provided with a recess, in which recess the insulating mat (33) is arranged.
5. 5. An insulating substructure for the installation of platform doors according to claim 2, characterised in that the top periphery of the upper steel plate (31) is provided with water guiding eaves (35).
6. 6. An insulating substructure for the installation of a platform door according to claim 1, wherein the top of the box-type platform deck (1) is covered with decorative tiles (4), the decorative tiles (4) being flush with the floor finish of the platform public area and leaving an insulating gap (5) of 10-15mm with the floor finish of the platform public area.
7. 7. An insulating substructure for a platform door according to claim 6, wherein an L-shaped insulating spacer (6) is arranged in the insulating gap (5), and the top of the insulating gap (5) is closed with an insulating glue (7).
8. 8. An insulating substructure for the installation of platform doors according to claim 1, characterised in that the box-type platform boards (1) are prefabricated with concrete.
9. 9. An insulating substructure for the installation of platform doors according to claim 1, characterised in that the number of support uprights (2) is four, or six, or eight.

Description

Insulation foundation structure for mounting platform door Technical Field The invention belongs to the field of rail transit platform doors, and particularly relates to an insulating foundation structure for installing a platform door. Background In most subway projects at present, a train adopts a direct current power supply mode. In the power supply mode, in order to prevent the stray current from carrying out electrochemical corrosion on underground pipelines and steel structures in station buildings, an insulating installation is adopted between a train running rail serving as a return rail and the ground. Thus, there may be a potential difference between the running rail and the ground, up to DC90V (in normal operation and under maximum load) or DC120V (in disconnection by traction, when power is supplied by the adjacent traction transformer, "big double sides"), so there is a potential difference between the platform door and the train that causes safety hazard to the passengers, and if the passengers touch the platform door and the train door at the same time, safety hazard may be caused. The standard makes corresponding requirements for door insulation and rail connection, namely the equipotential requirements for the platform door and the train carriage are kept, and when the equipotential requirements are met when the connection requirements are met with the steel rail, the metal components of the platform door which can be reached by a human body under normal conditions are insulated from the station structure, and the insulation resistance between the door body and the station structure is not less than 0.5MΩ. In addition, the ground surface on the platform side of the shielding door and the inside and outside of the end door should be provided with an insulating area with the distance from the door body not less than 900 mm. The implementation measures of the insulation scheme of the domestic subway at present are that the full-height platform door adopts an insulation cushion block/plate installation scheme which is formed by connecting an upper telescopic insulation sleeve with a civil top beam and adding an insulation cushion block/plate to a lower support, and the half-height platform door adopts an insulation cushion block/plate installation scheme which is formed by adding an insulation cushion block/plate to a lower support. Meanwhile, insulating layers which are about 1200mm away from the door body are arranged on the platform side of the platform door and the ground inside and outside the end door. The patent with the publication number of CN218509937U discloses a platform door supporting connecting piece fastening bolt insulating sealing device, an insulating sleeve gasket is adopted to isolate a connecting assembly of a platform door from the external environment, the platform door insulating performance is enhanced while the platform door insulating performance is protected from being corroded by damp pollution, leakage current monitoring is facilitated, subway operation safety is improved, the patent with the publication number of CN219754355U discloses a door frame insulating structure and a platform door, an insulating block is arranged between the bottom of the cladding plate and the connecting plate, a first insulating plate is arranged between the bottom of the insulating block and the connecting plate, passengers can touch a vehicle body, the cladding plate and a threshold, a conductive path cannot be formed between the cladding plate and the vehicle body and between the threshold and the vehicle body, electric shock hazard is avoided for the passengers, the patent with the publication number of CN220133408U discloses an integral composite insulating layer for a subway insulating system, the insulating bracket and a sheet insulating material are adopted, the characteristics of bubble resistance and moisture resistance are achieved, the problems of stability and durability defects existing in the prior insulating layer technology are solved, the patent with the publication number of CN201835234U discloses a subway insulating structure, the technical scheme is adopted, the insulating layer is laid on a mortar insulating layer, the insulating layer is directly coated on a high-level insulating layer, insulating layer is coated on a high insulating layer, insulating layer is directly, and the insulating layer is coated on a high insulating layer is directly, and the insulating layer is coated, and the insulating layer is directly insulating layer is coated, and has a high insulating layer, and has a high insulating layer insulation performance. Because the insulating sleeve on the upper part of the platform door is not arranged on the side of the track area and has no sewage, the environmental condition is better and is not easy to fail, the integral insulation failure of the platform door is mainly caused by the insulation of the base of the door body and the failure of the ins