Prefabricated rail top air duct mounting, positioning and adjusting device

Abstract

The utility model discloses a mounting, positioning and adjusting device for a prefabricated rail top air duct, which relates to the technical field of subway construction and comprises two positioning plates, a connecting structure and a locking structure, each positioning plate is provided with a clamping part, and the two clamping parts can be clamped on two sides of the abutted seam position of the prefabricated rail top air duct; each positioning plate is provided with a connecting part, the connecting parts are movably arranged on the connecting structure, and the two connecting parts can move on the connecting structure in the direction close to or away from each other; and the locking structure can lock the position of the connecting part. According to the mounting, positioning and adjusting device for the prefabricated rail top air duct, the position of the prefabricated rail top air duct can be adjusted when the prefabricated rail top air duct is assembled and positioned, and the mounting and positioning precision of the prefabricated rail top air duct is guaranteed.

Description

Technical Field

[0001] The utility model relates to the technical field of subway construction, in particular to an installation positioning and adjusting device for a precast track top air duct. Background Technique

[0002] The track top air duct of a subway station is located below the middle slab and above the track of the station, which is a secondary structure of the station. Conventionally, a cast-in-place reinforced concrete structure is mostly adopted. However, with the development of precast and assembled technology, more and more urban rail transit subway stations adopt a precast track top air duct structure.

[0003] At present, the installation of precast track top air ducts mostly uses lifting equipment installed on the middle slab or special trolleys for assembly. Since the precast track top air ducts are in a suspended state, it is very inconvenient to perform positioning and adjustment operations relying on lifting equipment or trolleys, and it is difficult to accurately position. The assembly accuracy of the precast track top air duct directly affects the installation of the subsequent platform screen doors of the station, and in severe cases, it affects the safety of train operation and passengers. Therefore, how to adjust the position of the precast track top air duct during the assembly and positioning process to ensure the installation and positioning accuracy of the precast track top air duct to meet the requirements of subsequent construction and operation safety has become an urgent problem to be solved at present. Summary of the Utility Model

[0004] The purpose of the utility model is to provide an installation positioning and adjusting device for a precast track top air duct to solve the problems existing in the above-mentioned prior art, and it can adjust the position of the precast track top air duct during the assembly and positioning process to ensure the installation and positioning accuracy of the precast track top air duct.

[0005] To achieve the above purpose, the utility model provides the following scheme:

[0006] The utility model provides an installation positioning and adjusting device for a precast track top air duct, which includes two positioning plates, a connection structure and a locking structure. Each positioning plate is provided with a clamping part, and the two clamping parts can be clamped on both sides of the joint position of the precast track top air duct; each positioning plate is provided with a connection part, the connection part is movably arranged on the connection structure, and the two connection parts can move in a direction close to or away from each other on the connection structure; the locking structure can lock the position of the connection part.

[0007] Preferably, the positioning plate is L-shaped, and the positioning plate includes a bottom plate that can abut against the bottom surface of the precast track top air duct and a side plate that can abut against the side wall of the precast track top air duct, and the side plate forms the clamping part.

[0008] Preferably, a sleeve is fixedly arranged at the bottom of the bottom plate, the sleeve forms the connection part, one end of a screw without a nut can sequentially pass through the two sleeves and be threadedly connected with a nut, the screw forms the connection structure, and the nut forms the locking structure.

[0009] Preferably, one sleeve is provided at each of the 1 / 4 position and the 3 / 4 position at the bottom of each base plate.

[0010] Preferably, the positioning plate is 1 m long.

[0011] Preferably, the positioning plate is made of angle steel.

[0012] Preferably, the positioning plate is made of equal-angle steel with a size of 75×5 mm.

[0013] The utility model has achieved the following technical effects compared with the prior art:

[0014] After the precast track roof air duct is installed to the bottom of the middle plate of the station by a lifting device or a trolley and preliminarily positioned, the precast track roof air duct installation positioning and adjustment device provided by the utility model is installed at the joint position of the track roof air duct. By adjusting the locking structure, while pulling and fastening the positioning plates on both sides, the positioning accuracy of the precast track roof air duct can be adjusted to meet the requirements of subsequent construction and operation safety. Description of the Drawings

[0015] In order to more clearly illustrate the technical solutions in the embodiments of the present utility model or the prior art, the following will briefly introduce the drawings required in the embodiments. Obviously, the drawings in the following description are only some embodiments of the present utility model. For those of ordinary skill in the art, without creative efforts, other drawings can also be obtained based on these drawings.

[0016] Figure 1 It is a schematic structural diagram of the precast track roof air duct installation positioning and adjustment device provided by the present utility model;

[0017] Figure 2 It is a schematic diagram of an implementation manner of the precast track roof air duct installation positioning and adjustment device provided by the present utility model;

[0018] In the figure: 100 - precast track roof air duct installation positioning and adjustment device; 1 - positioning plate; 2 - sleeve; 3 - bolt; 4 - nut; 5 - the Nth ring track roof air duct; 6 - the (N + 1)th ring track roof air duct. Detailed Embodiments

[0019] The following will clearly and completely describe the technical solutions in the embodiments of the present utility model with reference to the drawings in the embodiments of the present utility model. Obviously, the described embodiments are only some embodiments of the present utility model, rather than all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative efforts fall within the protection scope of the present utility model.

[0020] The purpose of the present utility model is to provide a prefabricated track top air duct installation positioning and adjustment device, so as to solve the problems existing in the prior art, be able to adjust the position of the prefabricated track top air duct during the assembly and positioning of the prefabricated track top air duct, and ensure the installation and positioning accuracy of the prefabricated track top air duct.

[0021] In order to make the above objects, features and advantages of the present utility model more obvious and understandable, the present utility model will be further described in detail below with reference to the accompanying drawings and specific embodiments.

[0022] The present utility model provides a prefabricated track top air duct installation positioning and adjustment device 100, as Figures 1-2 shown, which includes two positioning plates 1, a connection structure and a locking structure. Each positioning plate 1 has a clamping portion, and the two clamping portions can be clamped on both sides of the joint position of the prefabricated track top air duct; each positioning plate 1 has a connection portion, and the connection portion is movably arranged on the connection structure, and the two connection portions can move in a direction close to or away from each other on the connection structure; the locking structure can lock the position of the connection portion.

[0023] In some embodiments, the positioning plate 1 is L-shaped. The positioning plate 1 includes a bottom plate that can abut against the bottom surface of the prefabricated track top air duct and a side plate that can abut against the side wall of the prefabricated track top air duct. The side plate forms a clamping portion, and the two side plates cooperate to be able to clamp on both sides of the joint position of the prefabricated track top air duct.

[0024] In some embodiments, at least one sleeve 2 is fixedly arranged at the bottom of the bottom plate. The sleeve 2 forms a connection portion. One end of a screw without a nut can sequentially pass through two sleeves 2 correspondingly arranged on the two bottom plates and be threadedly connected with a nut 4. The screw forms a connection structure, and the nut 4 forms a locking structure. By tightening the nut 4, the two positioning plates 1 can be pulled and fastened to clamp on both sides of the joint position of the prefabricated track top air duct.

[0025] In some embodiments, two sleeves 2 are welded to the bottom of each bottom plate. The two sleeves 2 are respectively arranged at the 1 / 4 position and the 3 / 4 position at the bottom of the bottom plate. A set of bolts 3 are inserted into each sleeve 2 to ensure the stability of the structural connection. The model of the bolt 3 is preferably M20, and the size of the sleeve 2 is adapted to the specification of the bolt 3.

[0026] In some embodiments, the positioning plate 1 is 1 m long.

[0027] In some embodiments, the positioning plate 1 is made of angle steel.

[0028] In some embodiments, the positioning plate 1 is made of equal-angle steel with a size of 75×5 mm.

[0029] After the precast track roof air duct is installed to the bottom of the station middle plate by a lifting device or a trolley and is initially positioned, two sets of the precast track roof air duct installation positioning and adjustment devices 100 provided by the present utility model are installed at the joint position between the Nth ring track roof air duct 5 and the (N + 1)th ring track roof air duct 6. An electric wrench is used to tighten the nuts 4 of the bolts 3 respectively. While the two side L-shaped positioning plates 1 are tensioned and fastened, the positioning accuracy of the precast track roof air duct is adjusted. The next ring of the precast track roof air duct is installed in sequence. After the grouting strength of the joint between the precast track roof air duct and the middle plate reaches the requirement, the device can be removed and used for the subsequent installation positioning and adjustment construction of the precast track roof air duct. The precast track roof air duct installation positioning and adjustment device 100 provided by the present utility model can effectively adjust the installation positioning accuracy of the precast track roof air duct, and has the characteristics of simple manufacture, recyclable, low cost, convenient operation, etc.

[0030] In the present utility model, specific examples are used to elaborate on the principle and implementation manner of the present utility model. The description of the above embodiments is only used to help understand the method and its core idea of the present utility model; at the same time, for those of ordinary skill in the art, according to the idea of the present utility model, there will be changes in the specific implementation manner and application scope. In summary, the content of this specification should not be construed as a limitation to the present utility model.

Claims

1. A prefabricated rail top air duct installation positioning and adjustment device, characterized in that: include: Two positioning plates, each of which has a clamping portion, and the two clamping portions can be clamped on both sides of the joint position of the air duct on the top of the prefabricated rail; A connecting structure, each of the positioning plates has a connecting portion, the connecting portion is movably arranged on the connecting structure, and the two connecting portions can move on the connecting structure in a direction of approaching or moving away from each other; And a locking structure capable of locking the position of the connecting portion.

2. The prefabricated rail top air duct installation positioning and adjustment device according to claim 1, characterized in that: The positioning plate is L-shaped, and comprises a bottom plate capable of abutting against the bottom surface of the air duct at the top of the prefabricated rail and a side plate capable of abutting against the side wall of the air duct at the top of the prefabricated rail, wherein the side plates form the clamping portion.

3. The prefabricated rail top air duct installation positioning and adjustment device according to claim 2 is characterized in that: A sleeve is fixedly provided at the bottom of the base plate, and the sleeve forms the connecting portion. One end of a screw without a nut can pass through the two sleeves in sequence and be threadedly connected with the nut. The screw forms the connecting structure, and the nut forms the locking structure.

4. The installation, positioning and adjustment device for the prefabricated rail top air duct according to claim 3 is characterized in that: A sleeve is provided at the 1 / 4 position and the 3 / 4 position of the bottom of each base plate.

5. The prefabricated rail top air duct installation positioning and adjustment device according to claim 1, characterized in that: The positioning plate is 1 m long.

6. The prefabricated rail top air duct installation positioning and adjustment device according to claim 1, characterized in that: The positioning plate is made of angle steel.

7. The installation, positioning and adjustment device for the prefabricated rail top air duct according to claim 6, characterized in that: The positioning plate is made of 75×5 mm equilateral angle steel.

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