Integrated reinforcing connecting piece for evacuation platform of subway operation tunnel

Abstract

The utility model provides an integrated reinforcing connecting piece for an evacuation platform of a subway operation tunnel. The connecting piece comprises an L-shaped connecting steel plate and a horizontal steel plate, the horizontal steel plate is fixedly connected to the end of the L-shaped connecting steel plate, bolt holes are formed in the two plate faces of the L-shaped connecting steel plate and the plate face of the horizontal steel plate, and the L-shaped connecting steel plate is located at the corner position of the connecting portion of the evacuation platform and the platform support. Wherein one side plate face is fixed to the bottom face of the evacuation platform through a plurality of first self-tapping anchor bolts, the other side plate face is fixedly connected with the side face of the platform support through a plurality of second self-tapping anchor bolts, the horizontal steel plate is located on the end face of the platform support, and the upper portion of the horizontal steel plate is fixed to the end face of the evacuation platform through a third self-tapping anchor bolt. And the lower part is fixed with the end surface of the platform bracket through a fourth self-tapping anchor bolt. According to the utility model, the overall transverse and longitudinal offset of the evacuation platform can be avoided, the looseness of the evacuation platform due to insufficient lap joint can be avoided, and the stability and firmness of the evacuation platform are ensured.

Description

Technical Field

[0001] The utility model relates to the field of reinforcement of evacuation platforms in subway operation tunnels, and particularly designs an integral reinforcement connecting piece for an evacuation platform in a subway operation tunnel. Technical Background

[0002] An evacuation platform refers to a dedicated passage for evacuating passengers set in a subway interval tunnel. The height of the evacuation platform is generally the same as that of the station platform. In case of an accident, the car door can be immediately opened to allow passengers to evacuate from the evacuation platform to the nearest station. During the operation of the subway, if an accident occurs in the tunnel, after the train stops steadily, passengers can get off the carriage door and reach the evacuation platform, quickly leave the accident site, and safely reach the station or the safe exit, thus ensuring the safety of passengers; if an accident occurs on the platform, passengers can get off the evacuation platform through the evacuation door of the train cab and leave quickly.

[0003] With the rapid development of urban rail transit, the continuous opening and operation of operating lines, the task of treating structural diseases in operating tunnels is gradually increasing. During the maintenance and construction of tunnels, the displacement of the evacuation platform due to loosening is one of the common diseases in subway operation tunnels. The loosening and sliding of the evacuation platform may cause harm to construction and maintenance personnel in the operating tunnel. In severe cases, it may scratch the train or cause the train to brake, resulting in accidental injuries to the passengers on the train and having a great social impact.

[0004] The traditional evacuation platform reinforcement process is to replace the pin between the evacuation platform and the evacuation platform support. When the evacuation platform fixing device is damaged, the evacuation platform is replaced to solve the displacement of the evacuation platform. The traditional process of replacing the pin cannot completely solve the risk of evacuation platform displacement. As the train runs, the pin of the evacuation platform may fall off again; at the same time, replacing the evacuation platform is time-consuming due to the short skylight time and the large volume of the evacuation platform during the operation of the tunnel, with high safety risks and high economic costs for replacing the evacuation platform. Therefore, in this case, an integral reinforcement connecting piece device for the evacuation platform with a simple structure, convenient operation, safety and reliability, and low risk of secondary displacement is needed to ensure that the displacement of the evacuation platform in the operating tunnel can be eliminated, the risk can be controlled, and at the same time, the device is easy to process, simple to operate, has a low use cost and is easy to promote. Content of the Utility Model

[0005] The utility model provides an integral reinforcement connecting piece for an evacuation platform in a subway operation tunnel with a simple structure, reliable connection and convenient installation according to the deficiencies of the prior art; after the evacuation platform is loosened, the reinforcement piece can reinforce and repair the evacuation platform to ensure the stability of the evacuation platform and prevent the evacuation platform from displacing again during the operation of the tunnel.

[0006] In order to achieve the above technical objectives, the present utility model provides an integral reinforcement connecting member for a subway operation tunnel evacuation platform. The reinforcement connecting member is used for connecting and reinforcing between the evacuation platform and the platform support. The connecting member includes an L-shaped connecting steel plate and a horizontal steel plate. The horizontal steel plate is fixedly connected to the end of the L-shaped connecting steel plate. Bolt holes are provided on both surfaces of the L-shaped connecting steel plate and the surface of the horizontal steel plate. The L-shaped connecting steel plate is located at the corner position of the connection part between the evacuation platform and the platform support. One side surface is fixed to the bottom surface of the evacuation platform through a plurality of first self-tapping anchor bolts, and the other side surface is fixedly connected to the side surface of the platform support through a plurality of second self-tapping anchor bolts. The horizontal steel plate is located at the end surface of the platform support, and the upper part is fixed to the end surface of the evacuation platform through a third self-tapping anchor bolt, and the lower part is fixed to the end surface of the platform support through a fourth self-tapping anchor bolt.

[0007] A preferred technical solution of the present utility model: The L-shaped connecting steel plate and the horizontal steel plate are integrally formed by a steel plate with a thickness of 4-6 mm, or are welded together by an angle steel and a 4-6 mm steel plate.

[0008] A preferred technical solution of the present utility model: The distance between the bolt holes on each side surface of the L-shaped connecting steel plate is 7-10 cm; the length of the L-shaped connecting steel plate is not less than 350 mm.

[0009] A preferred technical solution of the present utility model: The depth of the first self-tapping anchor bolt and the third self-tapping anchor bolt embedded into the evacuation platform is not less than 35 mm; the depth of the second self-tapping anchor bolt and the fourth self-tapping anchor bolt embedded into the platform support is not less than 45 mm.

[0010] A preferred technical solution of the present utility model: Both side surfaces of the L-shaped connecting steel plate are closely attached to the bottom surface of the evacuation platform and the side surface of the platform support respectively, and the horizontal steel plate is closely attached to the end surface of the platform support.

[0011] A preferred technical solution of the present utility model: The steel plate and the angle steel used for the L-shaped connecting steel plate and the horizontal steel plate are made of stainless steel, or a galvanized layer with a thickness of not less than 85 μm is provided on their surfaces.

[0012] The angle steel and the steel plate of the present utility model are welded and connected to form an integral body. The angle steel and the steel plate can be closely attached to the evacuation platform and the evacuation platform support respectively, and are connected through self-tapping anchor bolts. The angle steel and the self-tapping anchor bolts jointly act to connect to the evacuation platform support and the evacuation platform to achieve the function of strengthening the evacuation platform. The connection of the angle steel, the self-tapping anchor bolts to the evacuation platform support and the evacuation platform prevents the lateral movement of the evacuation platform, and the connection of the angle steel, the steel plate, the self-tapping anchor bolts to the evacuation platform support and the evacuation platform prevents the longitudinal movement of the evacuation platform.

[0013] The reinforcement member of the utility model includes an angle steel and a steel plate welded together to form a whole, which is firm and reliable. It is connected to the evacuation platform and the evacuation platform bracket through self-tapping anchor bolts, which is convenient, fast and has strong applicability. At the same time, the sizes of the angle steel, the steel plate and the self-tapping anchor bolts can be customized according to the actual on-site requirements. The structure is simple, easy to process, install and operate. This fixing member can be used as a fixing member during the installation of the evacuation platform, and is also convenient for the repair and reinforcement after the evacuation platform loosens and displaces during use, ensuring the stability of the evacuation platform. On the one hand, the utility model avoids the overall lateral and longitudinal offset of the evacuation platform, and on the other hand, it can avoid the loosening caused by insufficient overlap of the evacuation platform, which may cause harm to the existing equipment and facilities and personnel during operation. Moreover, this connecting member is simple, practical and efficient, and is easy to promote. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 is a front structural schematic diagram of the connecting member in the utility model;

[0015] Figure 2 is Figure 1 the AA sectional view in

[0016] Figure 3 is a connection schematic diagram of the L-shaped connecting steel plate and the horizontal steel plate;

[0017] Figure 4 is a three-dimensional installation schematic diagram of the utility model;

[0018] Figure 5 is a sectional view of the installation state of the utility model.

[0019] In the figure: 1 - L-shaped connecting steel plate, 2 - horizontal steel plate, 3 - bolt hole, 4 - first self-tapping anchor bolt, 5 - second self-tapping anchor bolt, 6 - third self-tapping anchor bolt, 7 - evacuation platform, 8 - platform bracket, 9 - fourth self-tapping anchor bolt. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0020] Next, the technical solutions in the embodiments of the present utility model will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present utility model. Based on the embodiments in the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present utility model.

[0021] The embodiment provides an integrated reinforcement connecting member for the evacuation platform of a subway operation tunnel. As Figures 1 to 5 shown, the reinforcement connecting member is used for connecting and reinforcing between the evacuation platform 7 and the platform bracket 8, and is installed below the evacuation platform 7. The connecting member includes an L-shaped connecting steel plate 1 and a horizontal steel plate 2.

[0022] The horizontal steel plate 2 is fixedly connected to the end of the L-shaped connecting steel plate 1. The L-shaped connecting steel plate (1) and the horizontal steel plate 2 are integrally formed by a steel plate with a thickness of 5 mm, or are welded together by an angle steel of L60×60×5 (mm) and a 5-mm steel plate; the length of the angle steel is adjusted according to the uneven lap length and is not less than 350 mm. After the steel plate and the angle steel are sandblasted and derusted (derusting grade Sa3), integral hot-dip galvanizing is adopted, and the galvanizing thickness is not less than 85 μm, or stainless steel material is adopted. Bolt holes 3 are provided on both surfaces of the L-shaped connecting steel plate 1 and the surface of the horizontal steel plate 2. The distance between the bolt holes 3 on each side surface of the L-shaped connecting steel plate 1 is 7-10 cm, and the best is 8 cm.

[0023] The angle steel and the 5-mm steel plate are welded together; the length of the angle steel is adjusted according to the uneven lap length and is not less than 350 mm. After the steel plate and the angle steel are sandblasted and derusted (derusting grade Sa3), integral hot-dip galvanizing is adopted, and the galvanizing thickness is not less than 85 μm, or stainless steel material is adopted. Bolt holes 3 are provided on both surfaces of the L-shaped connecting steel plate 1 and the surface of the horizontal steel plate 2. The distance between the bolt holes 3 on each side surface of the L-shaped connecting steel plate 1 is 7-10 cm, and the best is 8 cm.

[0024] The embodiment provides an integral reinforcement connector for an evacuation platform of a subway operation tunnel. During specific installation, as Figure 4 and Figure 5 shown, the L-shaped connecting steel plate 1 is located at the corner position of the connection part between the evacuation platform 7 and the platform bracket 8. One side surface is fixed to the bottom surface of the evacuation platform 7 through a plurality of first self-tapping anchor bolts 4, and the other side surface is fixedly connected to the side surface of the platform bracket 8 through a plurality of second self-tapping anchor bolts 5. The horizontal steel plate 2 is located at the end face of the platform bracket 8, and the upper part is fixed to the end face of the evacuation platform 7 through a third self-tapping anchor bolt 6, and the lower part is fixed to the end face of the platform bracket 8 through a fourth self-tapping anchor bolt 9; both side surfaces of the L-shaped connecting steel plate 1 are closely attached to the bottom surface of the evacuation platform 7 and the side surface of the platform bracket 8 respectively, and the horizontal steel plate 2 is closely attached to the end face of the platform bracket 8. The first self-tapping anchor bolts 4, the second self-tapping anchor bolts 5, the third self-tapping anchor bolts 6 and the fourth self-tapping anchor bolts 9 all adopt M8 self-tapping anchor bolts, and the anchor bolt grade is 5.6. The embedding depth of the first self-tapping anchor bolts 4 and the third self-tapping anchor bolts 6 into the evacuation platform 7 is not less than 35 mm; the embedding depth of the second self-tapping anchor bolts 5 and the fourth self-tapping anchor bolts 9 into the platform bracket 8 is not less than 45 mm.

[0025] For the integral reinforcement connector of the evacuation platform of the subway operation tunnel in the embodiment, before specific installation, the surface of the platform bracket 8 on the side where the L-shaped connecting steel plate 1 is installed is simply cleaned to ensure that its surface is clean and flat; however, no damage shall be caused to the bracket; the installation height of the L-shaped connecting steel plate 1 should be positioned on site to ensure that the flange elevation of the L-shaped connecting steel plate 1 is flush with the bottom of the evacuation platform plate 7; after the L-shaped connecting steel plate 1 is installed, the upper evacuation platform plate 7 of the L-shaped connecting steel plate 1 should be simply cleaned to ensure effective contact between the bottom of the platform plate and the flange of the angle steel.

[0026] The structure of the utility model is simple, convenient for processing, installation and operation. The integrated platform reinforcement connecting piece device is fixed on the evacuation platform after installation, which is simple, practical and efficient. On the one hand, the utility model can avoid the overall lateral and longitudinal offset of the evacuation platform. On the other hand, it can avoid the loosening of the evacuation platform caused by insufficient lapping, and prevent the occurrence of hazards to the existing equipment and facilities and personnel in operation. The integrated platform reinforcement connecting piece is very firm and reliable on the evacuation platform. After the end of the daily shift construction, the structural safety can be ensured and potential risks can be eliminated. Therefore, the integrated platform reinforcement connecting piece device is not only convenient to use, but also can achieve the purpose of risk control, avoid increasing the operation cost, and can be widely applied to the reinforcement construction of the evacuation platform in the subway operation tunnel.

[0027] The embodiments of the present invention have been described in detail above with reference to the accompanying drawings. However, the present invention is not limited to the above embodiments. Those skilled in the art can make modifications without creative contributions to the present embodiments according to needs after reading this specification. However, as long as it is within the scope of the claims of the present invention, it is protected by the patent law.

Claims

1. An integrated reinforcement connector for the evacuation platform of a subway operation tunnel, the reinforcement connector being used for connecting and reinforcing between the evacuation platform (7) and the platform support (8), and characterized in that: The connecting piece includes an L-shaped connecting steel plate (1) and a horizontal steel plate (2). The horizontal steel plate (2) is fixedly connected to the end of the L-shaped connecting steel plate (1). Bolt holes (3) are provided on both plate surfaces of the L-shaped connecting steel plate (1) and the plate surface of the horizontal steel plate (2). The L-shaped connecting steel plate (1) is located at the corner position of the connection part between the evacuation platform (7) and the platform support (8). One side plate surface is fixed to the bottom surface of the evacuation platform (7) through a plurality of first self-tapping anchor bolts (4), and the other side plate surface is fixedly connected to the side surface of the platform support (8) through a plurality of second self-tapping anchor bolts (5). The horizontal steel plate (2) is located at the end face of the platform support (8), and the upper part is fixed to the end face of the evacuation platform (7) through a third self-tapping anchor bolt (6), and the lower part is fixed to the end face of the platform support (8) through a fourth self-tapping anchor bolt (9).

2. The integrated reinforcement connector for the evacuation platform of the subway operation tunnel according to claim 1, wherein: The L-shaped connecting steel plate (1) and the horizontal steel plate (2) are integrally formed by a steel plate with a thickness of 4 - 6 mm, or are welded together by an angle steel and a 4 - 6 mm steel plate.

3. An integrated reinforcement connector for the evacuation platform of a subway operation tunnel according to claim 1 or 2, characterized in that: The distance between the bolt holes (3) on each side plate surface of the L-shaped connecting steel plate (1) is 7 - 10 cm; the length of the L-shaped connecting steel plate (1) is not less than 350 mm.

4. An integrated reinforcement connecting piece for an evacuation platform in a subway operation tunnel according to claim 1 or 2, characterized in that: The depth of the first self-tapping anchor bolt (4) and the third self-tapping anchor bolt (6) embedded into the evacuation platform (7) is not less than 35 mm; the depth of the second self-tapping anchor bolt (5) and the fourth self-tapping anchor bolt (9) embedded into the platform support (8) is not less than 45 mm.

5. An integral reinforcement connecting member for an evacuation platform in a subway operation tunnel according to claim 1 or 2, characterized in that: Both side plate surfaces of the L-shaped connecting steel plate (1) are closely attached to the bottom surface of the evacuation platform (7) and the side surface of the platform support (8) respectively, and the horizontal steel plate (2) is closely attached to the end face of the platform support (8).

6. The one-piece reinforcement connecting piece for the evacuation platform of the subway operation tunnel according to claim 2, wherein: The steel plate and the angle steel used for the L-shaped connecting steel plate (1) and the horizontal steel plate (2) are made of stainless steel material, or are provided with a galvanized layer not less than 85 μm on their surfaces.

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