CN217520035U - Full prefabricated assembled rail top air duct structure - Google Patents

Abstract

The utility model relates to a wind channel technical field discloses a full prefabricated assembled rail top wind channel structure, including prefabricated wind channel and anchor bar group, the both sides scarf joint in prefabricated wind channel has anchor bar group, prefabricated wind channel is stretched out to the upper end of anchor bar group, the inserting groove has been seted up to the one end in prefabricated wind channel, the other end integrated into one piece in prefabricated wind channel has the socket, the socket and the inserting groove grafting assembly in adjacent prefabricated wind channel, the inboard one end fixed mounting who is close to the inserting groove in prefabricated wind channel has first connector, the inboard one end fixed mounting who is close to the socket of prefabricated wind channel has the second connector, the pinhole has all been seted up to first connector and second connector, the pinhole of the first connector and the second connector in adjacent prefabricated wind channel is equipped with the pin. The utility model discloses a shaping is assembled in full prefabricated rail top wind channel, the on-the-spot quick butt joint, when the concrete floor is pour, and the installation of being under construction in the same period avoids the secondary construction, and can avoid using the mounting means who articulates the assembly, need not pre-buried connecting piece, eliminates the longitudinal joint.

Description

Fully-prefabricated assembled rail top air duct structure

Technical Field

The utility model relates to a wind channel technical field specifically is a prefabricated assembled track top wind channel structure entirely.

Background

The rail top air duct of the subway station is a U-shaped section suspended on the lower side of a concrete floor slab, and the conventional installation method of the rail top air duct is cast-in-place. As a secondary structure of a station, after the construction of a main structure of the station is completed, a scaffold and a template are erected again for construction, so that an installation procedure is added; meanwhile, the cross section of the air duct is small in size, the height of the air duct is less than 800mm, the construction space is narrow, manual steel bar binding and template removal are difficult, time and labor are wasted, and the construction quality is difficult to guarantee; and during construction, reinforcing steel bars need to be reserved on the lower portion of the concrete floor and connected with a rail top air channel constructed later, the influence of the construction progress of a station is caused, if the reinforcing steel bars are exposed for a long time, the reinforcing steel bars are easy to corrode, the connection firmness is influenced, and potential safety hazards exist.

The subway station in the prior art adopts a semi-prefabricated rail top air duct or a prefabricated rail top air duct structure (the cross section is U-shaped or L-shaped) hung after an embedded part is reserved to avoid the operation of cast-in-place rail top air ducts, but the construction is implemented after the concrete floor is poured, the installation process of the rail top air duct which is hung and assembled after the cast-in-place rail top air duct is complex, a treatment process (rigid caulking of cement mortar, grouting and sealant for plugging) is required to be added for the existing splicing seams (circular seams and longitudinal seams), the rigid caulking seams can be loosened and fall off due to the vibration caused by the reciprocating running of a subway train, the maintenance is required in the later period, the grouting and sealant for plugging are complicated, the operation is complex, the sealant cannot meet the fireproof requirement, toxic gas is generated after high-temperature flowing, the position precision requirement on the embedded connecting part is extremely high, and the effects of simple splicing, simplified process and time and labor saving cannot be achieved as an assembled rail top air duct, the practical application is less, and in order to solve the problems, a fully-prefabricated assembled rail top air duct structure is provided.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide a prefabricated assembled rail top wind channel structure entirely to solve the problem that proposes among the above-mentioned background art.

In order to achieve the above purpose, the utility model provides a following technical scheme: the utility model provides a full prefabricated assembled rail top wind channel structure, including prefabricated wind channel and anchor bar group, the both sides in prefabricated wind channel have inlayed anchor bar group, prefabricated wind channel is stretched out to the upper end of anchor bar group, the inserting groove has been seted up to the one end in prefabricated wind channel, the other end integrated into one piece in prefabricated wind channel has the grafting body, the grafting body and the inserting groove grafting assembly in adjacent prefabricated wind channel, the inboard one end fixed mounting who is close to the inserting groove in prefabricated wind channel has first connector, the inboard one end fixed mounting who is close to the grafting body in prefabricated wind channel has the second connector, the pinhole has all been seted up to first connector and second connector, the pinhole grafting assembly of the first connector and the second connector in adjacent prefabricated wind channel has the pin.

Preferably, the cross section of the prefabricated air duct is a rectangular frame body, first inclined planes are arranged on the side walls of the outer sides of the inserting bodies, the shape of the inner side of the inserting groove is matched with that of the inserting body, and second inclined planes are arranged on the side walls of the inner side of the inserting groove.

Preferably, the second inclined planes are fixedly provided with sealing materials, and the sealing materials are rubber asbestos plates with the thickness of 5 mm.

Preferably, the first connecting body and the second connecting body are distributed at four corners at each end.

Preferably, one side of the first connecting body, which is far away from the second connecting body, is a vertical plane, and one side of the first connecting body, which is close to the second connecting body, is a slope.

Preferably, the length of the prefabricated air duct is 1000mm, and the bottom thickness of the prefabricated air duct is 150 mm and 200 mm.

Preferably, each anchor rib group consists of two rows of symmetrically arranged anchor rib parts, and each anchor rib part is of an inverted L-shaped structure.

The utility model has the advantages that: the fully prefabricated assembled rail top air channel structure adopts a fully prefabricated rail top air channel, is quickly butted, assembled and molded on site, and is constructed and installed at the same time when a concrete floor is poured, so that time and labor waste and potential safety hazards caused by secondary construction are avoided; and the installation mode of hanging and assembling can be avoided, the embedded connecting piece is not needed, the longitudinal joint is eliminated, the assembly is simple, the working procedure is simplified, and the time and the labor are saved in the assembly process.

Drawings

FIG. 1 is a schematic perspective view of the present invention;

FIG. 2 is a front view of the utility model in a schematic structure during installation;

FIG. 3 is a schematic cross-sectional view of the structure of the utility model after splicing end to end;

fig. 4 is an enlarged view of the structure at a in fig. 3.

In the figure: the concrete slab comprises a prefabricated air duct 1, pins 2, a second connector 3, a first connector 4, an anchor bar 5, an adjustable supporting rod 6, a sealing material 7, a concrete side wall 8 and a cast-in-place concrete floor 9.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.

Referring to fig. 1, fig. 2, fig. 3 and fig. 4, the present invention provides a technical solution: the utility model provides a full prefabricated assembled type rail top wind channel structure, includes prefabricated wind channel 1 and anchor bar group, prefabricated wind channel 1's both sides scarf joint has the anchor bar group, prefabricated wind channel 1 is stretched out to the upper end of anchor bar group, the inserting groove has been seted up to prefabricated wind channel 1's one end, prefabricated wind channel 1's other end integrated into one piece has the plug-in body, the plug-in body and the inserting groove plug-in assembly of adjacent prefabricated wind channel 1, the plug-in body forms the mode of tongue-and-groove concatenation with the inserting groove, for current plain end connected mode, the seal is better. One end fixed mounting that 1 inboard in prefabricated wind channel is close to the inserting groove has first connector 4, 1 inboard one end fixed mounting that is close to the inserting body in prefabricated wind channel has second connector 3, every end first connector 4 and second connector 3 evenly distributed are in four corners department, the pinhole has all been seted up to first connector 4 and second connector 3, the pinhole grafting of first connector 4 and second connector 3 of adjacent prefabricated wind channel 1 is equipped with pin 2, promote the seam rigidity of adjacent prefabricated wind channel 1 in the butt joint, the wholeness is good.

The cross section of the prefabricated air duct 1 is a rectangular frame body, first inclined planes are arranged on the side walls of the outer sides of the inserting bodies, the shapes of the inner sides of the inserting grooves are matched with those of the inserting bodies, second inclined planes are arranged on the side walls of the inner sides of the inserting grooves, smooth butt joint of a tongue-and-groove splicing mode is facilitated through the first inclined planes and the second inclined planes, sealing materials 7 are fixedly arranged on the second inclined planes, the sealing materials 7 are rubber asbestos plates with the thickness of 5mm, the sealing annular seams and the fireproof effect are achieved, the service cycle is long, and the requirement for sealing performance of a medium-pressure air duct can be met.

One side that first connector 4 and second connector 3 kept away from each other is vertical plane, the butt joint laminating of being convenient for, and one side that first connector 4 and second connector 3 are close to each other is domatic, promotes the atress ability of first connector 4 and second connector 3.

The length of the prefabricated air duct 1 is 1000mm, so that a worker can conveniently stretch tools into the butt joint of the prefabricated air duct 1 to install the pins 2 inserted into the first connecting body 4 and the second connecting body 3, the thickness of the bottom of the prefabricated air duct 1 is 150-200mm, the bottom of the prefabricated air duct 1 is reserved with enough thickness, blind holes can be opened, expansion bolts can be installed, and other components and equipment can be hooked.

Each anchor bar group is composed of two rows of anchor bar pieces 5 which are symmetrically arranged, each anchor bar piece 5 is of an inverted L-shaped structure, and the prefabricated air duct 1 can be firmly connected and fixed with the cast-in-place concrete floor slab 9 through the anchor bar pieces 5 in the shape and arrangement.

The specific application of this embodiment is:

1) the size of the cross section of the prefabricated air duct 1 can be adjusted and customized as required, the material is made of light aggregate concrete and embedded with the anchor bar piece 5 for pouring, compared with the common concrete structure, the self weight is reduced by 25%, the using amount of the steel bar is reduced, the material is saved, and the prefabricated air duct has a tongue-and-groove splicing structure and a sealing material 7;

2) during construction, after the concrete side wall 8 is solidified, constructing a concrete floor 9 between the concrete side wall 8 and installing the prefabricated air duct 1, firstly, building the adjustable support rod 6 on a scaffold, transporting the prefabricated air duct 1 to a specified position through a forklift and positioning the prefabricated air duct on the adjustable support rod 6, horizontally moving and butting the prefabricated air duct 1, splicing and assembling the splicing body and the splicing groove at the moment and tightly extruding the splicing body, tightly sealing the first inclined plane and the second inclined plane by using a sealing material 7, aligning pin holes on the first connecting body 4 and the second connecting body 3, knocking a pin 2 into the pin hole for fastening, longitudinally connecting and fixing the pin 2, tightly supporting the prefabricated air duct 1 by using the adjustable support rod 6, and simultaneously extending the anchor rib piece 5 into a pre-pouring position of the concrete floor 9 on the upper side;

3) and (3) sequentially and circularly installing until the whole air channel structure is completed, pouring the concrete floor 9 in sections, dismantling the adjustable support rod 6 and the scaffold of the prefabricated air channel 1 after the concrete floor 9 is solidified, and forming the concrete floor 9 and the prefabricated air channel 1 into a whole to complete installation.

It is obvious to a person skilled in the art that the invention is not restricted to details of the above-described exemplary embodiments, but that it can be implemented in other specific forms without departing from the spirit or essential characteristics of the invention. The present embodiments are therefore to be considered in all respects as illustrative and not restrictive, the scope of the invention being indicated by the appended claims rather than by the foregoing description, and all changes which come within the meaning and range of equivalency of the claims are therefore intended to be embraced therein. Any reference sign in a claim should not be construed as limiting the claim concerned.

Furthermore, it should be understood that although the present description refers to embodiments, not every embodiment may contain only a single embodiment, and such description is for clarity only, and those skilled in the art should integrate the description, and the embodiments may be combined as appropriate to form other embodiments understood by those skilled in the art.

Claims (7)

1. The utility model provides a prefabricated assembled rail top wind channel structure entirely, its characterized in that: including prefabricated wind channel (1) and dowel steel group, the both sides scarf joint of prefabricated wind channel (1) has the dowel steel group, prefabricated wind channel (1) has been visited to the upper end of dowel steel group, the inserting groove has been seted up to the one end of prefabricated wind channel (1), the other end integrated into one piece of prefabricated wind channel (1) has the grafting body, the grafting body and the inserting groove grafting assembly of adjacent prefabricated wind channel (1), prefabricated wind channel (1) inboard is close to the one end fixed mounting of inserting groove has first connector (4), the inboard one end fixed mounting who is close to the grafting body of prefabricated wind channel (1) has second connector (3), the pinhole has all been seted up to first connector (4) and second connector (3), the pinhole grafting of first connector (4) and second connector (3) of adjacent prefabricated wind channel (1) is equipped with pin (2).

2. A fully prefabricated assembled rail head duct structure according to claim 1, wherein: the cross section of the prefabricated air duct (1) is a rectangular frame body, first inclined planes are arranged on the side walls of the outer sides of the inserting bodies, the shapes of the inner sides of the inserting grooves are matched with the inserting bodies, and second inclined planes are arranged on the side walls of the inner sides of the inserting grooves.

3. A fully prefabricated assembled rail top duct structure according to claim 2, wherein: and the second inclined planes are fixedly provided with sealing materials (7), and the sealing materials (7) are rubber asbestos plates with the thickness of 5 mm.

4. A fully prefabricated assembled rail-top duct structure according to claim 3, wherein: the first connecting body (4) and the second connecting body (3) at each end are distributed at four corners.

5. A fully prefabricated assembled rail top duct structure according to claim 4, wherein: one side of the first connecting body (4) and one side of the second connecting body (3) which are far away from each other are vertical planes, and one side of the first connecting body (4) and one side of the second connecting body (3) which are close to each other are slopes.

6. A fully prefabricated assembled rail top duct structure according to claim 5, characterized in that: the length of the prefabricated air duct (1) is 1000mm, and the bottom thickness of the prefabricated air duct (1) is 150-200 mm.

7. A fully prefabricated assembled rail head duct structure according to claim 1, wherein: each anchor bar group consists of two rows of symmetrically arranged anchor bar pieces (5), and the anchor bar pieces (5) are of inverted L-shaped structures.

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