An open-close type subway tunnel evacuation platform

Abstract

The application discloses an open-close type subway tunnel evacuation platform, which comprises a conventional step plate arranged in a tunnel body, a longitudinal drainage blind ditch inspection well is also arranged in the tunnel body, a maintenance passing unit assembly is arranged at the position of the longitudinal drainage blind ditch inspection well, the maintenance passing unit assembly is combined with the conventional step plates on both sides to form a step plate channel, and the maintenance passing unit assembly comprises a maintenance state and a passing state. In the application, the step plate fixing part and the step plate folding part are connected with the conventional step plates on both sides in the evacuation direction, the normal use of the evacuation process is ensured, the Π-shaped support frame of the platform is used as a bottom support base, the rectangular square steel is fixed at the bottom of the step plate fixing part and the step plate folding part and is arranged on the Π-shaped support frame, and when the step plate folding part is lifted, space is provided for the maintenance personnel to enter the longitudinal drainage blind ditch inspection well for maintenance. The application provides the open-close type subway tunnel evacuation platform, which ensures the subway tunnel evacuation function and provides the maintenance space for the maintenance of the tunnel drainage blind ditch.

Description

TECHNICAL FIELD

[0001] The present application belongs to the technical field of tunnel emergency evacuation, and particularly relates to an open-close type subway tunnel evacuation platform. BACKGROUND

[0002] The tunnel emergency evacuation platform is a special channel for evacuating passengers which is longitudinally and continuously arranged in a tunnel, and passengers can directly walk from a door position to the evacuation platform and then leave the accident position.

[0003] In a full-package waterproof tunnel, there is no drainage blind pipe, and the traditional fixed evacuation platform can meet the requirements, but for specific geology, a drainage tunnel can be used, and such a tunnel needs to be provided with a drainage system, but the inspection well of the drainage system and the evacuation platform conflict in the spatial position, and personnel cannot easily enter the inspection well to maintain the drainage system. Therefore, the above problems need to be solved. SUMMARY

[0004] The present application provides an open-close type subway tunnel evacuation platform to solve the problem that the inspection well of the drainage system and the evacuation platform conflict in the spatial position and personnel cannot easily enter the inspection well to maintain the drainage system.

[0005] The technical scheme of the present application is as follows: an open-close type subway tunnel evacuation platform, comprising a conventional step plate arranged in a tunnel main body, a longitudinal drainage blind trench inspection well is also arranged in the tunnel main body, a maintenance passing unit assembly is arranged at the position of the longitudinal drainage blind trench inspection well, the maintenance passing unit assembly and the conventional step plates on both sides are combined to form a step plate channel, and the maintenance passing unit assembly comprises a maintenance state and a passing state.

[0006] Further, when the maintenance passing unit assembly is in the passing state, the upper end of the maintenance passing unit assembly is flush with the upper end of the conventional step plate.

[0007] Further, the maintenance passing unit assembly comprises a Π-shaped support frame, the Π-shaped support frame is a bottom support base, and a top plate assembly satisfying passing is arranged on the Π-shaped support frame.

[0008] Further, the top plate assembly comprises a step plate fixing portion, and a step plate folding portion capable of being folded and rotated is arranged on one side of the step plate fixing portion.

[0009] Further, when the step plate folding portion is attached to the Π-shaped support frame, the maintenance passing unit assembly is in the passing state, and when the step plate folding portion is separated from the Π-shaped support frame, the maintenance passing unit assembly is in the maintenance state.

[0010] Further, the Π-shaped support frame comprises vertical connecting beams and top supporting beams, the two vertical connecting beams and the top supporting beams form a Π-shaped structure, the connecting beams are connected with the tunnel body, and the supporting beams support the step plate fixing part and the step plate folding part.

[0011] Further, the bottom of the connecting beam forms a hole bottom plate, an anchor bolt is pre-set in the tunnel body, and the anchor bolt is fixed by screwing a nut after penetrating through the hole bottom plate.

[0012] Further, the step plate fixing part is located away from the longitudinal drainage blind ditch inspection well, and the step plate folding part is close to the longitudinal drainage blind ditch inspection well.

[0013] Further, a hinge is arranged between the step plate fixing part and the step plate folding part, and the hinge enables rotation of the step plate folding part.

[0014] Further, when the maintenance passing unit assembly is in a passing state, a reserved hole is arranged in the step plate folding part, a bolt is inserted into the wall of the longitudinal drainage blind ditch inspection well after penetrating through the reserved hole, and the passing state of the step plate folding part is fixed.

[0015] In the present application, the step plate fixing part and the step plate folding part connect the conventional step plates on both sides in the evacuation direction, ensure normal use in the evacuation process, utilize the flat Π-shaped support frame as a bottom support base, utilize the rectangular square steel to be fixed at the bottom of the step plate fixing part and the step plate folding part and be arranged on the Π-shaped support frame, and when the step plate folding part is lifted, space is provided for maintenance personnel to enter the longitudinal drainage blind ditch inspection well, and the present application provides an open-close type subway tunnel evacuation platform, and provides a maintenance space for tunnel maintenance. BRIEF DESCRIPTION OF DRAWINGS

[0016] Figure 1 is a plane schematic view of the present application;

[0017] Figure 2 is Figure 1 is a sectional view of A-A in the present application;

[0018] Figure 3 is Figure 1 is a sectional view of B-B in the present application;

[0019] Figure 4 is a structural schematic view of the Π-shaped support frame in the present application;

[0020] Wherein:

[0021] 1 tunnel body 2 longitudinal drainage blind ditch inspection well

[0022] 3 Π-shaped support frame 4 step plate fixing part

[0023] 5-step folding section, 6 hinges

[0024] 7. Pin 8. Reserved hole

[0025] 9 anchor bolts, 10 standard step plates

[0026] 11. Angle steel. Detailed Implementation

[0027] The present invention will now be described in detail with reference to the accompanying drawings and embodiments:

[0028] like Figures 1 to 4 As shown, an openable subway tunnel evacuation platform includes conventional step plates 10 installed in the tunnel body 1. The tunnel body 1 is also provided with a longitudinal drainage blind ditch inspection well 2. A maintenance passage unit component is provided at the location of the longitudinal drainage blind ditch inspection well 2. The maintenance passage unit component is combined with the conventional step plates 10 on both sides to form a step plate channel. The maintenance passage unit component includes a maintenance state and a passage state.

[0029] When the inspection and maintenance unit component is in the through state, the upper end of the inspection and maintenance unit component is flush with the upper end of the conventional step plate 10.

[0030] The inspection and maintenance unit includes a Π-shaped support frame 3, which serves as the bottom support base, and a top plate assembly that allows passage is provided on the Π-shaped support frame 3.

[0031] The top plate assembly includes a step plate fixing part 4, and a step plate folding part 5 capable of folding and rotating is provided on one side of the step plate fixing part 4.

[0032] When the step plate folding part 5 is in contact with the Π-shaped support frame 3, the inspection and maintenance passing unit assembly is in the passing state; when the step plate folding part 5 is detached from the Π-shaped support frame 3, the inspection and maintenance passing unit assembly is in the maintenance state.

[0033] The Π-shaped support frame 3 includes a vertical connecting beam and a top support beam. The two vertical connecting beams and the top support beam enclose a Π-shaped structure. The connecting beam is connected to the tunnel body 1, and the support beam supports the step plate fixing part 4 and the step plate folding part 5.

[0034] The bottom of the connecting beam forms a perforated base plate, and the tunnel body 1 is pre-installed with anchor bolts 9. After the anchor bolts 9 pass through the perforated base plate, nuts are screwed on to fix the connecting beam.

[0035] The step plate fixing part 4 is located on the side away from the longitudinal drainage blind ditch inspection well 2, and the step plate folding part 5 is close to the longitudinal drainage blind ditch inspection well 2.

[0036] The hinge 6 is arranged between the step plate fixing part 4 and the step plate folding part 5, and the hinge 6 realizes rotation of the step plate folding part 5.

[0037] When the maintenance passing unit assembly is in the passing state, a reserved hole 8 is arranged in the step plate folding part 5, and a bolt 7 is inserted into the wall of the longitudinal drainage blind trench inspection well 2 after passing through the reserved hole 8, thereby realizing fixation of the step plate folding part 5 in the passing state.

[0038] Specifically, an angle steel 11 is arranged at the upper end of the step plate folding part 5 close to the longitudinal drainage blind trench inspection well 2, and the position of the angle steel 11 is adapted to the longitudinal drainage blind trench inspection well 2. The angle steel 11 plays a role of safety protection.

[0039] Specifically, the reserved hole 8 in the step plate folding part 5 is arranged in the angle steel 11.

[0040] Specifically, the Π-shaped support frame 3 is made of steel plates welded together, and the step plate fixing part 4 and the step plate folding part 5 are embossed steel plates.

[0041] Another embodiment

[0042] An open-close type subway tunnel evacuation platform comprises a conventional step plate 10 arranged in a tunnel main body 1, a longitudinal drainage blind trench inspection well 2 arranged in the tunnel main body 1, a maintenance passing unit assembly arranged at the position of the longitudinal drainage blind trench inspection well 2, the maintenance passing unit assembly and the conventional step plates 10 on both sides combined to form a step plate passage, and the maintenance passing unit assembly comprising a maintenance state and a passing state.

[0043] When the maintenance passing unit assembly is in the passing state, the upper end of the maintenance passing unit assembly is flush with the upper end of the conventional step plate 10.

[0044] The maintenance passing unit assembly comprises a Π-shaped support frame 3, the Π-shaped support frame 3 is a bottom support base, and a top plate assembly satisfying passing is arranged on the Π-shaped support frame 3.

[0045] The top plate assembly comprises a step plate fixing part 4, and one side of the step plate fixing part 4 is provided with a step plate folding part 5 capable of being folded and rotated.

[0046] When the step plate folding part 5 is attached to the Π-shaped support frame 3, the maintenance passing unit assembly is in the passing state, and when the step plate folding part 5 is detached from the Π-shaped support frame 3, the maintenance passing unit assembly is in the maintenance state.

[0047] The Π-shaped support frame 3 comprises vertical connecting beams and a top support beam, and the two vertical connecting beams and the top support beam form a Π-shaped structure, the connecting beams are connected to the tunnel main body 1, and the support beam supports the step plate fixing part 4 and the step plate folding part 5.

[0048] The bottom of the connecting beam forms a perforated bottom plate, and an anchor bolt 9 is pre-provided in the tunnel body 1, and the anchor bolt 9 is screwed with a nut after penetrating through the perforated bottom plate to fix the connecting beam.

[0049] The step plate fixing part 4 is located away from the longitudinal drainage blind ditch inspection well 2, and the step plate folding part 5 is close to the longitudinal drainage blind ditch inspection well 2.

[0050] The hinge 6 is arranged between the step plate fixing part 4 and the step plate folding part 5, and the hinge 6 realizes rotation of the step plate folding part 5.

[0051] When the maintenance passing unit assembly is in the passing state, the reserved hole 8 is arranged in the step plate folding part 5, the bolt 7 is inserted into the wall of the longitudinal drainage blind ditch inspection well 2 after penetrating through the reserved hole 8, and the passing state of the step plate folding part 5 is fixed.

[0052] Specifically, the angle steel 11 is arranged at the position close to the longitudinal drainage blind ditch inspection well 2 at the upper end of the step plate folding part 5, and the position of the angle steel 11 is adapted to the longitudinal drainage blind ditch inspection well 2. The angle steel 11 plays a role of safety protection.

[0053] Specifically, the reserved hole 8 in the step plate folding part 5 is arranged in the angle steel 11.

[0054] Specifically, the Π-shaped support frame 3 is welded by a steel plate, and the step plate fixing part 4 and the step plate folding part 5 are embossed steel plates.

[0055] In the embodiment, the rectangular square steel is further arranged at the lower end of the step plate fixing part 4 and the step plate folding part 5 as a support.

[0056] At the step plate fixing part 4, the rectangular square steel is welded on the Π-shaped support frame 3 with the step plate fixing part 4. The surface of each steel member is treated by alloy co-permeation or hot-dip galvanizing anticorrosion coating, and the steel member is treated by outdoor expansion type steel structure fireproof paint.

[0057] At the step plate folding part 5, the rectangular square steel is welded with the step plate fixing part 4, and after rotation through the hinge 6, the rectangular square steel frame is arranged on the Π-shaped support frame 3.

[0058] The Π-shaped support frame 3 can ensure stability of the step plate fixing part 4 and the step plate folding part 5, and is fixed to the tunnel body 1, so that the step plate of the longitudinal drainage blind ditch inspection well 2 is smoothly connected with the conventional step plate 10, and personnel passing in an emergency is ensured.

[0059] Specifically, the anchor bolt 9 is bilaterally arranged, and two anchor bolts are arranged on each side, so as to ensure stability of fixation of the Π-shaped support frame 3 to the tunnel body 1.

[0060] The use process of the application is as follows:

[0061] The step plate fixing part 4 and the step plate folding part 5 can ensure that the fixing meets the personnel passing and meets the tunnel wind pressure, vibration and durability requirements when there is no need for maintenance. When the drainage system needs to be maintained, the step plate folding part 5 can be lifted to provide space for the maintenance personnel to enter the longitudinal drainage blind ditch inspection well 2. The corresponding step plate folding part 5 is close to one side of the longitudinal drainage blind ditch inspection well 2, and an angle steel 11 needs to be arranged as a anti-falling device to play the role of a baffle to block the feet of the personnel and avoid the personnel from falling into the longitudinal drainage blind ditch inspection well 2.

[0062] In the present application, the step plate fixing part and the step plate folding part link the conventional step plates on both sides in the evacuation direction, ensuring the normal use of the evacuation process. Meanwhile, the flat Π-shaped support frame is used as the bottom support base, and the rectangular square steel is fixed at the bottom of the step plate fixing part and the step plate folding part and is arranged on the Π-shaped support frame. When the step plate folding part is lifted, space is provided for the maintenance personnel to enter the longitudinal drainage blind ditch inspection well. The present application provides an open-close type subway tunnel evacuation platform, which provides a maintenance space for tunnel maintenance.

Claims

1. A retractable subway tunnel evacuation platform comprising a conventional step plate (10) arranged in a tunnel body (1), characterized in that: The tunnel body (1) is also provided with a longitudinal drainage blind ditch inspection well (2), a maintenance passing unit assembly is arranged at the position of the longitudinal drainage blind ditch inspection well (2), the maintenance passing unit assembly is combined with the conventional step plates (10) on both sides to form a step plate channel, and the maintenance passing unit assembly comprises a maintenance state and a passing state. When the maintenance passing unit assembly is in the passing state, the upper end of the maintenance passing unit assembly is flush with the upper end of the conventional step plate (10). The maintenance passing unit assembly comprises a Π-shaped support frame (3), the Π-shaped support frame (3) is a bottom support base, and a top plate assembly meeting the passing requirement is arranged on the Π-shaped support frame (3). The top plate assembly comprises a step plate fixing part (4), and a step plate folding part (5) capable of being folded and rotated is arranged on one side of the step plate fixing part (4). When the step plate folding part (5) is attached to the Π-shaped support frame (3), the maintenance passing unit assembly is in the passing state, and when the step plate folding part (5) is separated from the Π-shaped support frame (3), the maintenance passing unit assembly is in the maintenance state. When maintenance is not required, the step plate fixing part (4) and the step plate folding part (5) ensure that the fixed personnel meet the passing requirement and meet the requirements of tunnel wind pressure, vibration and durability, and when the drainage system needs to be maintained, the step plate folding part (5) is lifted to provide space for maintenance personnel to enter the longitudinal drainage blind ditch inspection well (2), and the side of the step plate folding part (5) close to the longitudinal drainage blind ditch inspection well (2) is provided with an angle steel (11) as a anti-dropping device, which acts as a baffle.

2. An openable and closable subway tunnel evacuation platform according to claim 1, characterized in that: The Π-shaped support frame (3) comprises vertical connecting beams and a top support beam, the two vertical connecting beams and the top support beam form a Π-shaped structure, the connecting beams are connected with the tunnel body (1), and the support beam supports the step plate fixing part (4) and the step plate folding part (5).

3. An openable and closable subway tunnel evacuation platform according to claim 2, characterized in that: The bottom of the connecting beam forms a hole bottom plate, an anchor bolt (9) is pre-installed in the tunnel body (1), and the anchor bolt (9) is screwed with a nut after penetrating through the hole bottom plate to fix the connecting beam.

4. An openable and closable evacuation platform for a subway tunnel according to claim 3, characterized in that: The step plate fixing part (4) is located away from the longitudinal drainage blind ditch inspection well (2), and the step plate folding part (5) is close to the longitudinal drainage blind ditch inspection well (2).

5. An openable and closable evacuation platform for a subway tunnel according to claim 4, characterized in that: A hinge (6) is arranged between the step plate fixing part (4) and the step plate folding part (5), and the hinge (6) realizes the rotation of the step plate folding part (5).

6. An openable evacuation platform for a subway tunnel according to claim 5, characterized in that: When the maintenance passing unit assembly is in the passing state, a reserved hole (8) is arranged in the step plate folding part (5), a bolt (7) penetrates through the reserved hole (8) and is inserted into the wall of the longitudinal drainage blind ditch inspection well (2), and the passing state of the step plate folding part (5) is fixed.

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