Temporary fixing device for subway fabricated track top air duct vertical wall

Abstract

The utility model discloses a kind of temporary fixing devices for subway assembly type rail top air duct vertical wall, it is related to building fixing device technical field. Including prefabricated middle plate and air duct prefabricated side wall, bolt sleeve is pre-buried on the prefabricated middle plate and the air duct prefabricated side wall, triangular fixed component is connected on the bolt sleeve, the upper side wall of the triangular fixed component is abutted with the prefabricated middle plate, the side side wall of the triangular fixed component is abutted with the air duct prefabricated side wall. The utility model is stabilized temporary fixing to assembly type rail air duct by triangular fixed component, simple structure and convenient connection, the installation and fixing of assembly type rail top air duct in assembly type station are realized, promote the development of assembly type building in subway station.

Description

Technical Field

[0001] This utility model relates to the field of building fixing device technology, specifically to a temporary fixing device for the vertical wall of the prefabricated rail top ventilation duct in subways. Background Technology

[0002] Currently, the track-top ventilation ducts in subway stations are mostly constructed using cast-in-place concrete structures. This method has problems such as a large amount of on-site wet work, long construction period, high labor input, and difficulty in quality control.

[0003] With the widespread application of prefabricated building technology in subway stations, prefabricated track-top ventilation ducts are gradually becoming the direction of industry development due to their advantages such as factory prefabrication, controllable quality, and convenient installation. However, existing technologies lack temporary fixing devices for prefabricated track-top ventilation ducts. How to achieve rapid, stable, and reliable temporary fixing has become a key issue restricting the efficiency and safety of prefabricated construction.

[0004] Therefore, there is an urgent need to provide a temporary fixing device for the vertical wall of the prefabricated rail-top ventilation duct in subways. Utility Model Content

[0005] The main purpose of this utility model is to provide a temporary fixing device for the vertical wall of the prefabricated rail top ventilation duct in subways, so as to solve the problems existing in the prior art.

[0006] To solve the above-mentioned technical problems, the present invention adopts the following technical solution: A temporary fixing device for the vertical wall of a prefabricated rail-top ventilation duct in a subway includes a prefabricated middle plate and a prefabricated side wall of the ventilation duct. Bolt sleeves are pre-embedded in the prefabricated middle plate and the prefabricated side wall of the ventilation duct. A triangular fixing component is connected to the bolt sleeve. The upper side wall of the triangular fixing component abuts against the prefabricated middle plate, and the side wall of the triangular fixing component abuts against the prefabricated side wall of the ventilation duct.

[0007] Furthermore, the triangular fixing assembly includes a horizontal angle steel, a vertical angle steel, and a diagonal angle steel. The horizontal angle steel is provided with a first connecting hole, and a first fixing bolt is provided in the first connecting hole. The first fixing bolt passes through the first connecting hole and is connected to a bolt sleeve on the precast middle plate. The vertical angle steel is provided with a second connecting hole, and a second fixing bolt is provided in the second connecting hole. The second fixing bolt passes through the second connecting hole and is connected to a bolt sleeve on the precast side wall of the air duct. The two ends of the diagonal angle steel are respectively fixedly connected to the horizontal angle steel and the vertical angle steel.

[0008] Furthermore, the two ends of the oblique angle steel are fixedly connected to the horizontal angle steel and the vertical angle steel by welding or bolting.

[0009] Furthermore, the triangular fixing component is made of stainless steel.

[0010] Furthermore, multiple bolt sleeves are provided on the precast slab, and a reinforcing bar is connected between two adjacent bolt sleeves.

[0011] Furthermore, multiple bolt sleeves are provided on the prefabricated side wall of the air duct, and steel bars are connected between two adjacent bolt sleeves.

[0012] Compared with the prior art, the present invention has the following beneficial effects: The prefabricated track duct is stably and temporarily fixed by a triangular fixing component, which is simple in structure and easy to connect.

[0013] The temporary fixing device for the vertical wall of the prefabricated rail top ventilation duct in the subway enables the installation and fixing of the prefabricated rail top ventilation duct in the prefabricated station, and promotes the development of prefabricated buildings in subway stations. Attached Figure Description

[0014] Figure 1 This is a schematic diagram of a temporary fixing device for the vertical wall of a prefabricated rail-top ventilation duct in a subway.

[0015] Among them, 1-precast middle plate; 2-precast side wall of air duct; 3-bolt sleeve; 4-horizontal angle steel; 5-vertical angle steel; 6-diagonal angle steel; 7-reinforcing bar. Detailed Implementation

[0016] The technical solution of this utility model will be further described below with reference to the accompanying drawings and embodiments.

[0017] Example 1

[0018] Combination Figure 1 This utility model provides a temporary fixing device for the vertical wall of a prefabricated rail-top ventilation duct in a subway, including a prefabricated middle plate 1 and a prefabricated side wall 2 for the ventilation duct. The rail-top ventilation duct is connected to the prefabricated middle plate 1 by a ring-lock anchor. Bolt sleeves 3 are pre-embedded on the prefabricated middle plate 1 and the prefabricated side wall 2 for the ventilation duct. A triangular fixing component is connected to the bolt sleeve 3. The upper side wall of the triangular fixing component abuts against the prefabricated middle plate 1, and the side wall of the triangular fixing component abuts against the prefabricated side wall 2 for the ventilation duct.

[0019] Bolt sleeve 3 adopts 25mm bolt sleeve.

[0020] The triangular fixing assembly includes a horizontal angle steel 4, a vertical angle steel 5, and a diagonal angle steel 6. The horizontal angle steel 4 is provided with a first connecting hole, and a first fixing bolt is provided in the first connecting hole. The first fixing bolt passes through the first connecting hole and is connected to the bolt sleeve 3 on the precast middle plate 1. The vertical angle steel 5 is provided with a second connecting hole, and a second fixing bolt is provided in the second connecting hole. The second fixing bolt passes through the second connecting hole and is connected to the bolt sleeve 3 on the precast side wall 2 of the air duct. The two ends of the diagonal angle steel 6 are fixedly connected to the horizontal angle steel 4 and the vertical angle steel 5, respectively.

[0021] The horizontal angle steel 4, vertical angle steel 5, and diagonal angle steel 6 are made of three 800mm long L80 steel bars. It is constructed of 8-angle steel; the first and second fixing bolts are 4.6 grade M25 bolts.

[0022] The two ends of the oblique angle steel 6 are fixedly connected to the horizontal angle steel 4 and the vertical angle steel 5 by welding or bolting, with bolting being preferred.

[0023] The triangular fixing component is made of stainless steel.

[0024] Multiple bolt sleeves 3 are provided on the precast middle plate 1, and a steel bar 7 is connected between two adjacent bolt sleeves 3, which can further increase the fixing stability of the bolt sleeves 3 to the precast middle plate 1.

[0025] Multiple bolt sleeves are provided on the prefabricated sidewall 2 of the air duct, and steel bars are connected between two adjacent bolt sleeves, which can further increase the fixing stability of the bolt sleeves 3 to the prefabricated sidewall 2 of the air duct.

[0026] The prefabricated track duct is stably and temporarily fixed by a triangular fixing component, which is simple in structure and easy to connect.

[0027] The above description is merely a preferred embodiment of the present utility model and does not constitute any limitation on the technical scope of the present utility model. Therefore, any minor modifications, equivalent changes and alterations made to the above embodiments based on the technical essence of the present utility model shall still fall within the scope of the technical solution of the present utility model.

Claims

1. A temporary fixing device for the vertical wall of a prefabricated rail-top ventilation duct in a subway, characterized in that, It includes a precast middle plate and a precast side wall for the air duct. Bolt sleeves are pre-embedded in the precast middle plate and the precast side wall for the air duct. A triangular fixing component is connected to the bolt sleeve. The upper side wall of the triangular fixing component abuts against the precast middle plate, and the side wall of the triangular fixing component abuts against the precast side wall for the air duct.

2. A temporary fixing device for the vertical wall of a prefabricated rail-top ventilation duct in a subway as described in claim 1, characterized in that, The triangular fixing assembly includes a horizontal angle steel, a vertical angle steel, and a diagonal angle steel. The horizontal angle steel is provided with a first connecting hole, and a first fixing bolt is provided in the first connecting hole. The first fixing bolt passes through the first connecting hole and is connected to a bolt sleeve on the precast middle plate. The vertical angle steel is provided with a second connecting hole, and a second fixing bolt is provided in the second connecting hole. The second fixing bolt passes through the second connecting hole and is connected to a bolt sleeve on the precast side wall of the air duct. The two ends of the diagonal angle steel are fixedly connected to the horizontal angle steel and the vertical angle steel, respectively.

3. A temporary fixing device for the vertical wall of a prefabricated rail-top ventilation duct in a subway as described in claim 2, characterized in that, The two ends of the oblique angle steel are fixedly connected to the horizontal angle steel and the vertical angle steel by welding or bolting.

4. A temporary fixing device for the vertical wall of a prefabricated rail-top ventilation duct in a subway as described in claim 1, characterized in that, The triangular fixing component is made of stainless steel.

5. A temporary fixing device for the vertical wall of a prefabricated rail-top ventilation duct in a subway as described in claim 1, characterized in that, The precast slab has multiple bolt sleeves, and a reinforcing bar connects two adjacent bolt sleeves.

6. A temporary fixing device for the vertical wall of a prefabricated rail-top ventilation duct in a subway as described in claim 1, characterized in that, Multiple bolt sleeves are provided on the prefabricated side wall of the air duct, and steel bars are connected between two adjacent bolt sleeves.

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