CN111894236A

CN111894236A - Prefabricated air shaft

Info

Publication number: CN111894236A
Application number: CN202010621860.2A
Authority: CN
Inventors: 金振奋; 戎子涵; 李少华; 肖志斌; 张力
Original assignee: Architectural Design and Research Institute of Zhejiang University Co Ltd
Current assignee: Architectural Design and Research Institute of Zhejiang University Co Ltd
Priority date: 2020-06-30
Filing date: 2020-06-30
Publication date: 2020-11-06

Abstract

The invention relates to a prefabricated air shaft, and belongs to the technical field of building construction. The method comprises the following steps: the prefabricated well wall comprises a roof cast-in-place section, a cover plate and a prefabricated well wall arranged between the roof cast-in-place section and the cover plate; the prefabricated air shaft is characterized in that a buckle structure is arranged between the connecting end surfaces of the components, a mounting groove for accommodating the buckle structure is arranged, and a grouting hole and a grout overflow hole which are communicated with the mounting groove are formed in the outer wall of the prefabricated air shaft. The prefabricated cover plate and the prefabricated well wall are prefabricated in a factory, the cast-in-place section of the roof is cast in place, the prefabricated well wall is sequentially installed on the cast-in-place section of the roof, and then the prefabricated cover plate is installed on the wall of the prefabricated well at the top and is clamped through a clamping structure. And finally, injecting mortar along each grouting hole, and grouting the mounting groove to finish the mounting. The prefabricated air shaft is attractive and practical, can realize prefabricated production, is convenient to install on site, and can greatly accelerate the construction speed.

Description

Prefabricated air shaft

Technical Field

The invention relates to the technical field of building construction, in particular to a prefabricated air shaft.

Background

The fabricated building is a building which is formed by transferring a large amount of field operation work in the traditional construction mode to a factory, processing and manufacturing building components and accessories (such as floor slabs, wall slabs, stairs, balconies and the like) in the factory, transporting the components and accessories to a building construction site, and assembling and installing the components and the accessories on the site in a reliable connection mode.

The prefabricated building mainly comprises a prefabricated concrete structure, a steel structure, a modern wood structure building and the like, and is a representative of a modern industrial production mode due to the adoption of standardized design, factory production, assembly construction, informatization management and intelligent application.

Nowadays, prefabricated building is being widely promoted, prefabricated components such as prefabricated floor, prefabricated outer wall have obtained extensive application, for example the utility model patent publication of publication number CN204252487U discloses a novel prefabricated ventilating shaft structure, and the ventilating shaft that goes out the roofing still adopts cast-in-place construction mode mostly. The traditional cast-in-place roof outlet air shaft restricts the advantages of batch production, low cost and high construction speed of the fabricated building, and the prefabricated air shaft with the advantages of standardized parameters, convenient installation, high construction speed, attractive appearance and the like is more in accordance with the concepts of standardized design, industrialized production and construction assembly of the fabricated building, and is a necessary trend for replacing the cast-in-place roof outlet air shaft.

The utility model discloses a ventilation shaft constructional column construction prefabricated component with publication number CN210316379U, which comprises an initial component, a plurality of middle components and a top component; the initial member is located and treats pouring constructional column bottom, and initial member, intermediate member and top member all include connecting piece and accessory, and the connecting piece is three confined hollow frame structures all around, and the fourth face of connecting piece is provided with the draw-in groove that carries out the block with the accessory, and the both ends of accessory are provided with the buckle that carries out the block with the draw-in groove, and the connecting piece makes up into four confined hollow structure with the accessory. The top of the connecting piece of the starting component is provided with a clamping groove; the middle component is arranged at the top of the starting component, the bottom of the connecting piece is provided with a clamping convex block which is clamped with the clamping groove of the starting component, the bottom of the connecting piece is provided with a clamping groove, the middle components are sequentially arranged, and the bottom of the accessory of the middle component is provided with a lacing bar inserting hole; the bottom of the connecting piece of the top component is provided with a clamping convex block which is clamped with the clamping groove of the middle component, and a concrete pouring opening is formed in one side face of the connecting piece of the top component. Such prefabricated ventilation shafts still require a large amount of concrete casting at a later stage and have a problem of complicated installation.

Disclosure of Invention

The invention aims to provide a prefabricated air shaft which has the characteristics of convenience in installation, low cost and high construction speed, and the construction speed and the construction efficiency are greatly improved.

In order to achieve the above object, the prefabricated air shaft of the present invention comprises: the prefabricated well wall comprises a roof cast-in-place section, a cover plate and a prefabricated well wall arranged between the roof cast-in-place section and the cover plate;

the prefabricated air shaft is characterized in that a buckle structure is arranged between the connecting end surfaces of the components, a mounting groove for accommodating the buckle structure is arranged, and a grouting hole and a grout overflow hole which are communicated with the mounting groove are formed in the outer wall of the prefabricated air shaft.

According to the technical scheme, the prefabricated cover plate and the prefabricated well wall are prefabricated in a factory, the cast-in-place section of the roof is poured in situ, the prefabricated well wall is sequentially installed on the cast-in-place section of the roof, the prefabricated cover plate is installed on the wall of the prefabricated well at the topmost part, and the prefabricated cover plate is clamped through the clamping structure. And finally, injecting mortar along each grouting hole, and grouting the mounting groove to finish the mounting. The prefabricated air shaft is attractive and practical, can realize prefabricated production, is convenient to install on site, and can greatly accelerate the construction speed.

Optionally, in an embodiment, the snap structure includes a snap hook disposed on an end surface of one of the members, and a snap groove correspondingly disposed on an end surface of the other member, and a locking structure is disposed at a bottom of the snap groove. During installation, the buckle hooks are aligned to the corresponding buckle grooves in sequence, then are buckled slightly, and locking is completed through the locking structure.

Optionally, in an embodiment, the two opposite directions of the snap hook are included, the locking mechanism is a locking groove facing to two sides of the snap groove, and after the snap hook is inserted into the snap groove, the bottom of the snap groove hooks the locking groove and locks.

Optionally, in an embodiment, the mounting groove is disposed on an end surface of the member for mounting the fastening groove, and the fastening groove is fixed in the mounting groove and has a certain gap with an inner wall of the mounting groove.

Optionally, in an embodiment, the fastening hook and the fastening groove are connected with the corresponding component through an integral casting between embedded steel bars.

Optionally, in one embodiment, the grouting hole and the grout overflow hole are communicated with the mounting groove.

Optionally, in an embodiment, the snap hook is located above the snap groove. The buckle hook is buckled into the buckle groove during installation, so that the installation is more convenient.

Optionally, in one embodiment, a plurality of snap structures are provided between the connecting end surfaces of the members. A plurality of buckle structures are evenly arranged. The mounting stability can be improved.

Compared with the prior art, the invention has the advantages that:

the prefabricated air shaft is convenient to install, the shaft wall and the cover plate are prefabricated in a factory, and all components are connected and assembled on site, so that the construction speed and the construction quality are greatly improved.

Drawings

FIG. 1 is a schematic mechanical diagram of a prefabricated air shaft according to an embodiment of the present invention;

FIG. 2 is a top view of a prefabricated well wall according to an embodiment of the present invention;

FIG. 3 is a schematic view illustrating the installation of a prefabricated air shaft according to an embodiment of the present invention;

fig. 4 is a schematic view of a buckle structure according to an embodiment of the present invention.

Detailed Description

In order to make the objects, technical solutions and advantages of the present invention more apparent, the present invention will be further described with reference to the following embodiments and accompanying drawings. It is to be understood that the embodiments described are only a few embodiments of the present invention, and not all embodiments. All other embodiments, which can be derived by a person skilled in the art from the described embodiments without any inventive step, are within the scope of protection of the invention.

Unless defined otherwise, technical or scientific terms used herein shall have the ordinary meaning as understood by one of ordinary skill in the art to which this invention belongs. The use of the word "comprise" or "comprises", and the like, in the context of this application, is intended to mean that the elements or items listed before that word, in addition to those listed after that word, do not exclude other elements or items. The terms "connected" or "coupled" and the like are not restricted to physical or mechanical connections, but may include electrical connections, whether direct or indirect. "upper", "lower", "left", "right", and the like are used merely to indicate relative positional relationships, and when the absolute position of the object being described is changed, the relative positional relationships may also be changed accordingly.

Examples

Referring to fig. 1 to 4, the prefabricated air shaft of the embodiment includes a roof cast-in-place section 1, a plurality of prefabricated well walls 2 and a prefabricated cover plate 3 located at the top, which are at least sequentially arranged from the bottom. The embodiment provides a prefabricated wall 2. Be equipped with buckle structure 4 between the installation face of the cast-in-place section 1 of roofing and prefabricated wall of a well 2, between the installation face of prefabricated wall of a well 2 and prefabricated apron 3, still be equipped with mounting groove 5 that is used for holding buckle structure 4, be equipped with grouting hole 6 and the excessive hole 7 of intercommunication mounting groove 5 on the outer wall of prefabricated air shaft.

The prefabricated cover plate 3 and the prefabricated well wall 2 are prefabricated in a factory, and the cast-in-place section 1 of the roof is cast in situ. The buckle structures 4 are uniformly arranged on the mounting end face, each buckle structure 4 comprises a buckle hook 41 arranged on one component end face and a buckle groove 42 correspondingly arranged on the other component end face, and a locking structure is arranged at the bottom of each buckle groove 42. The locking mechanism is a locking groove facing to two sides of the locking groove 42, the locking hook 41 is aligned and locked along a notch of the locking groove 42, the locking hook 41 and the locking groove 42 are correspondingly matched in size, and after the locking hook 41 is inserted into the locking groove 42, the locking groove is hooked at the bottom of the locking groove 42 and locked.

In this embodiment, for the convenience of installation, set up the buckle hook in the top of buckle groove, buckle hook setting is at the lower terminal surface of prefabricated apron 3 and prefabricated wall of a well 2 promptly, and the buckle groove sets up the up end at the cast-in-place section 1 of roofing and the prefabricated wall of a well, also can avoid like this when the slip casting, and the thick liquid flows from the gap between two connection terminal surfaces, influences the installation effectiveness.

The buckle hook 41 of this embodiment is welded on a steel sheet, and it is pre-buried in the concrete to be equipped with reinforcing bar 9 on the steel sheet. The buckle groove 42 is arranged in the mounting groove 5 of the concrete, a gap of 20mm is reserved between the buckle groove 42 and the concrete at the periphery for filling the mortar to form a deformation space, and a steel plate at the lower part of the buckle groove 42 is provided with a steel bar 9 which is pre-embedded in the concrete.

The installation schematic diagram of the prefabricated air shaft is shown in fig. 3, during installation, the buckle hooks 41 on the lower end faces of the prefabricated well wall 2 and the prefabricated cover plate 3 are sequentially aligned to the buckle grooves 42 correspondingly arranged on the upper end faces of the roof cast-in-place section 1 and the prefabricated well wall 2, then the buckle hooks are slightly buckled, after all the buckle hooks are buckled, mortar 8 is injected into each grouting hole 6 to be filled firmly, and then installation can be completed, enough deformation space is reserved between the buckle hooks 41 and the buckle grooves 42 before the mortar 8 is injected, buckling is convenient, and the deformation space is filled with the mortar after the mortar 8 is injected, so that the deformation of the buckle hooks is limited, and connection is firm and reliable.

Claims

1. A prefabricated air shaft, comprising: the prefabricated well wall comprises a roof cast-in-place section, a cover plate and a prefabricated well wall arranged between the roof cast-in-place section and the cover plate;

2. The prefabricated air shaft as claimed in claim 1, wherein the fastening structure comprises a fastening hook disposed on an end surface of one of the members and a fastening groove correspondingly disposed on an end surface of the other member, and a locking structure is disposed at a bottom of the fastening groove.

3. The prefabricated wind shaft according to claim 2, wherein the latch hooks include two latch grooves facing opposite directions, the latch mechanisms are latch grooves facing both sides of the latch grooves, and the latch hooks are inserted into the latch grooves, and then latched to the latch grooves at bottoms of the latch grooves.

4. The prefabricated air shaft as claimed in claim 2, wherein the mounting groove is provided at an end surface of a member for mounting the catching groove, and the catching groove is fixed in the mounting groove with a certain gap from an inner wall of the mounting groove.

5. The prefabricated air shaft as claimed in claim 4, wherein the buckle hook and the buckle groove are connected with the corresponding component through an integral pouring through embedded steel bars.

6. The prefabricated air shaft as claimed in claim 4, wherein the grouting hole and the grout overflow hole are communicated with the installation groove.

7. A prefabricated air shaft according to any one of claims 2 to 6 wherein said snap hooks are located above said snap grooves.

8. The prefabricated air shaft as claimed in claim 1, wherein a plurality of snap structures are provided between the connection end surfaces of the respective members.