CN215860270U - Assembled wind channel unit and rail top wind channel - Google Patents

Abstract

The utility model relates to an assembled air duct unit and a rail top air duct, which comprise a vertical plate and an L-shaped plate, wherein the vertical plate extends along the axis direction of a tunnel, the L-shaped plate comprises a vertical plate and a horizontal plate which are perpendicular to each other, the vertical plate and the vertical plate are parallel to each other, the upper ends of the vertical plate and the vertical plate are fixed between the lower surface of a station middle plate, one end of the horizontal plate far away from the vertical plate is fixed between the lower part of the vertical plate and the lower part of the vertical plate through connecting pieces, and the vertical plate, the L-shaped plate and the station middle plate are enclosed to form a ventilation channel. The utility model can improve the installation efficiency of the assembled air duct unit and the rail top air duct.

Description

Assembled wind channel unit and rail top wind channel

Technical Field

The utility model belongs to the technical field of rail transit, and particularly relates to an assembled air duct unit and a rail top air duct.

Background

The statements in this section merely provide background information related to the present disclosure and may not necessarily constitute prior art.

In some assembled air duct units and rail top air ducts known by the inventor, a U-shaped or box-shaped structure is prefabricated in a factory, the upper end of the U-shaped or box-shaped structure is fixed with a connecting plate reserved at a middle plate of a station through a bolt connecting piece or an anchoring piece to form an air duct unit, and a plurality of air duct units are sequentially spliced to form the rail top air duct.

When the U-shaped or box-shaped structure is installed, two connecting points are arranged between the upper end of the U-shaped or box-shaped structure and the middle plate of a station, if the lower end of the U-shaped or box-shaped structure is not supported, the connecting points fixed firstly can bear large bending moment, and the connecting pieces such as bolt connecting pieces or anchoring pieces and the like are easily damaged; when a scaffold is arranged below the U-shaped structure or the box-shaped structure for supporting, the U-shaped structure and the box-shaped structure are placed at the upper end of a scaffold supporting platform by using hoisting equipment, and the scaffold is required to be disassembled and assembled, so that the process is complicated.

In particular, when the lower portion of the duct unit has a lower extension, the lower end of the U-shaped structure or the box-shaped structure is not flat and is not easily supported by the scaffolding.

SUMMERY OF THE UTILITY MODEL

The present invention is directed to an assembled duct unit and a rail-top duct, which can solve at least one of the above problems.

In order to achieve the above purpose, one or more embodiments of the present invention provide an assembled air duct unit, which includes a vertical plate and an L-shaped plate, wherein the vertical plate extends along a tunnel axis direction, the L-shaped plate includes a vertical plate and a horizontal plate perpendicular to each other, the vertical plate and the vertical plate are parallel to each other, upper ends of the vertical plate and the vertical plate are fixed to a lower surface of a station middle plate, and ends of the horizontal plate far away from the vertical plate and a lower portion of the vertical plate are fixed by connectors, and the vertical plate, the L-shaped plate and the station middle plate enclose to form a ventilation channel.

As a further improvement, the vertical plates are connected with the station middle plate, and the horizontal plates are connected with the vertical plates through bolt connecting pieces.

One or more embodiments of the present invention provide a fabricated rail-top duct, the plurality of the above-described fabricated duct units.

The beneficial effects of one or more of the above technical solutions are as follows:

according to the utility model, the vertical plate, the L-shaped plate and the station middle plate are spliced to form a ventilation channel so as to form an air channel unit, compared with an integral prefabricated U-shaped or box-shaped structure, the vertical plate and the L-shaped plate can be independently installed, no bending moment is generated when the vertical plate is fixed with the station middle plate, after the vertical plate is completely fastened, the horizontal plate is in surface contact with the vertical plate when the L-shaped plate is installed, and the vertical plate is in surface contact with the station middle plate, so that after a bolt or other fasteners at one end of the L-shaped plate are installed, the bending moment at the connection point fixed firstly is smaller, and the connecting piece at the fixing part firstly cannot be damaged.

According to the utility model, the rail top air duct is formed by splicing a plurality of air duct units, so that the length of a single air duct unit along the axis direction of the rail is not limited, and the manufacture and transportation of the vertical plate and the L-shaped plate in the air duct unit are convenient to realize.

Drawings

The accompanying drawings, which are incorporated in and constitute a part of this application, illustrate embodiments of the application and, together with the description, serve to explain the application and are not intended to limit the application.

FIG. 1 is a schematic diagram of the overall structure in one or more embodiments of the utility model;

FIG. 2 is a schematic view of an L-shaped panel having air passage holes in accordance with one or more embodiments of the present invention;

FIG. 3 is a schematic view of the construction of one or more vertical panels of the present invention;

FIG. 4 is an exploded view of an L-shaped panel attached to a riser in one or more embodiments of the utility model;

FIG. 5 is a schematic illustration of a first connector according to one or more embodiments of the utility model;

FIG. 6 is a schematic illustration of a second connector according to one or more embodiments of the utility model;

FIG. 7 is a schematic illustration of a third connector according to one or more embodiments of the utility model;

FIG. 8 is a top view of the first connector with the anchor bars removed in accordance with one or more embodiments of the present invention;

FIG. 9 is a schematic illustration of a first gasket in accordance with one or more embodiments of the utility model;

FIG. 10 is a schematic illustration of a second gasket in accordance with one or more embodiments of the utility model;

FIG. 11 is a schematic view of a prefabricated box structure forming a duct unit according to some prior art solutions;

fig. 12 is a schematic diagram of an air duct unit formed by a prefabricated U-shaped structure and a station middle plate in some prior art solutions.

In the figure, 1, L-shaped plates; 101. a vertical plate; 102. a horizontal plate 102; 2. a vertical plate; 201. a lower extension section; 3. a first connecting plate; 31. a third connecting plate; 4. a second connecting plate; 5. a first gasket; 501. a second gasket I; 502. a second seal gasket II; 6. bolt holes; 7. anchoring and pulling the reinforcing steel bars; 8. a groove; 9. an air duct hole; 10. a middle plate of a station; 11. and a side wall.

Detailed Description

Example 1

As shown in fig. 11, a technical solution of using a prefabricated box structure instead of a cast-in-place concrete rail top air duct is provided, and it can be seen that two ends of the upper end of the box structure 12 are respectively connected and fixed with a station middle plate through connecting pieces 14. As shown in fig. 12, a technical solution is provided for replacing a cast-in-place concrete rail top air duct with a prefabricated U-shaped structure, and two sides of the upper end of the U-shaped structure 15 are respectively fixed with a station middle plate 17 through connecting pieces 16. When each duct unit is long, the connecting pieces 14 or 15 are arranged in two rows along the tunnel axis. When the box-shaped structure or the U-shaped structure is adopted, the box-shaped structure or the U-shaped structure is hoisted to the upper end of the scaffold by utilizing the hoisting equipment, the lower end of the scaffold is supported by utilizing the scaffold, the bending moment is eliminated, and the scaffold is dismantled after bolts or anchoring parts at two ends are screwed down in sequence.

In order to reduce the loaded down with trivial details process of dismouting scaffold, do not damage the prefabricated construction simultaneously, this embodiment provides an assembled wind channel unit, including riser and L template 1, the riser extends along tunnel axis direction, L template 1 includes vertical board 101 and horizontal plate 102 of mutually perpendicular, the riser is parallel to each other with vertical board 101, riser and vertical board 101 upper end respectively with station medium plate 10's lower fixed surface, the one end that vertical board 101 was kept away from to horizontal plate 102 is fixed with the riser lower part, the riser, L template 1 and station medium plate 10 enclose to close and form ventilation duct. In this embodiment, the L template setting is between riser and station side wall.

In this embodiment, the integral U-shaped structure is replaced with a separate L-shaped plate and a separate vertical plate, both the L-shaped plate and the vertical plate are prefabricated plates, and the prefabricated plates are transported to a station site for assembly, and the L-shaped plate and the vertical plate can be made of reinforced concrete members or made of metal materials such as aluminum alloy in some prior art schemes.

In this embodiment, in order to realize the assembly type connection, the vertical plate 102 and the vertical plate are connected by bolt connectors respectively between the vertical plate and the station middle plate 10, between the vertical plate 101 and the station middle plate 10.

In order to provide screw holes for connection of the bolt connecting pieces, connecting plates are respectively embedded at the two ends of the L-shaped plate 1, the upper end of the vertical plate and the connection part of the lower part of the vertical plate and the horizontal plate 102, and adjacent connecting plates are fixed through the bolt connecting pieces.

Specifically, the pre-buried connecting plate in station medium plate department is first connecting plate, and the pre-buried connecting plate in riser and vertical board upper end is the second connecting plate, and the pre-buried connecting plate in riser lower part and horizontal plate tip is the third connecting plate.

In order to facilitate the realization of the embedment of the third connecting plate at the lower part of the vertical plate, the lower part of the vertical plate is provided with a groove, the third connecting plate is arranged in the groove, and the end face of the third connecting plate, which is close to the groove, is welded and fixed with the anchor steel bar.

In order to realize the stable connection between the pre-buried connecting plates and the L-shaped plate or the vertical plate or the station middle plate, anchor steel bars 7 are respectively welded and fixed at each connecting plate, and the other ends of the anchor steel bars 7 are anchored in the station middle plate 10 or the L-shaped plate 1 or the vertical plate.

Specifically, for increasing the anchor strength of anchor bar, reduce the concept that anchor bar was pulled out, anchor bar 7 is L type structure, and it includes the first section of fixing with the connecting plate, the one end and the connecting plate vertical fixation of first section, the other end and second section vertical fixation. The first section and the second section are integrally formed.

The connecting position of the vertical plate and the horizontal plate is away from the lower end of the vertical plate by a set length, so that the lower end of the vertical plate forms a lower extension 201. And the positioning and installation of the auxiliary structure around the rail top air channel are realized by utilizing the downward extension section.

The adjacent connecting plates are sealed by a first sealing gasket 5. The first gasket is interposed between two adjacent connecting plates and is compressed between the two connecting plates during the tightening of the bolts 6.

The working principle is as follows: when using this device, according to predetermined size and shape at prefabricated riser and L template of mill to when the station medium plate is pour, pre-buried first connecting plate and corresponding anchor bar, at pre-buried corresponding second connecting plate, third connecting plate and corresponding anchor bar of riser and L template department.

During assembly, firstly, a lifting device is used for vertically lifting a vertical plate to a set height, a second connecting plate of the vertical plate is attached to a first connecting plate corresponding to a station medium plate, bolt holes are aligned, and bolts are screwed in the bolt holes to completely fix the vertical plate and the station medium plate; and after the vertical plate is fixed, the hoisting equipment is removed.

Then utilize the equipment of lifting by crane with the vertical hoist and mount of L template to setting for the height, the first connecting plate laminating that vertical board upper end in the L template and station medium plate correspond, the bolt hole is aimed at, the third connecting plate of horizontal plate tip and the laminating of the third connecting plate of riser lower part, the bolt hole is aimed at, screws up the bolt of vertical board or horizontal plate department earlier, then lifts by crane the equipment and withdraws from, screws up remaining bolt.

Example 2

This embodiment provides a fabricated rail-top duct comprising a plurality of fabricated duct units as described in embodiment 1.

In order to communicate the tunnel space with the ventilation air duct in the air duct unit, the horizontal plate 102 of a part of the fabricated rail head air duct unit is provided with an air duct hole 9. For example, one air duct hole is provided every three said assembled air duct units. The specific interval of the air duct holes is set by the personnel in the field, and the detailed description is omitted here.

And the adjacent assembled air duct units are sealed by a second sealing gasket.

Specifically, as shown in fig. 9, a second gasket i between two adjacent L-shaped plates is provided, and as shown in fig. 10, a second gasket ii between two adjacent risers is provided.

Although the embodiments of the present invention have been described with reference to the accompanying drawings, it is not intended to limit the scope of the present invention, and it should be understood by those skilled in the art that various modifications and variations can be made without inventive efforts by those skilled in the art based on the technical solution of the present invention.

Claims (10)

1. The utility model provides an assembled wind channel unit, its characterized in that, includes riser and L template, and the riser extends along tunnel axis direction, and the L template includes mutually perpendicular's vertical board and horizontal plate, and the riser is parallel with vertical board, between riser and vertical board upper end and the station medium plate lower surface, the horizontal plate is kept away from between vertical board's one end and the riser lower part fixed through the connecting piece respectively, and riser, L template and station medium plate enclose to close and form ventilation duct.

2. The fabricated air duct unit of claim 1, wherein the connector is a bolted connector.

3. The fabricated air duct unit of claim 1, wherein the connection locations in the risers to the horizontal plate are a set length from the riser lower ends such that the riser lower ends form a lower run.

4. The assembled air duct unit of claim 1, wherein connecting plates are embedded at the two ends of the L-shaped plate, the upper ends of the vertical plates and the connecting positions of the lower parts of the vertical plates and the horizontal plate respectively, and adjacent connecting plates are fixed through bolts.

5. The assembled air duct unit of claim 4, wherein anchor bars are fixed to the connecting plates, and the other ends of the anchor bars are anchored in a station middle plate, an L-shaped plate or a vertical plate.

6. The fabricated air duct unit of claim 5, wherein the anchor rebar is L-shaped.

7. The fabricated air duct unit according to claim 4, wherein adjacent connecting plates are sealed by a first gasket.

8. A fabricated rail-top duct comprising a plurality of fabricated duct units according to any one of claims 1 to 7.

9. The fabricated rail-top duct of claim 8, wherein a portion of the fabricated rail-top duct units have duct openings in the horizontal plate.

10. The fabricated rail-top duct of claim 8, wherein adjacent fabricated duct units are sealed by a second gasket.

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