CN216516534U

CN216516534U - Lightweight concrete roof exhaust passage prefabricated part

Info

Publication number: CN216516534U
Application number: CN202122907911.0U
Authority: CN
Inventors: 庄兴华; 周冠华; 吴鹏; 王钰
Original assignee: China Third Metallurgical Group Co Ltd
Current assignee: China Third Metallurgical Group Co Ltd
Priority date: 2021-11-25
Filing date: 2021-11-25
Publication date: 2022-05-13
Anticipated expiration: 2031-11-25

Abstract

The utility model belongs to the technical field of construction of building engineering roofs, and particularly relates to a prefabricated member for an exhaust duct of a lightweight concrete roof, which is characterized by comprising a through-center brick, a cross-shaped brick and a vent pipe, wherein a vent pipe installation groove is formed in the center of the cross-shaped brick upwards; the through-core brick is a cuboid, through holes are formed in the through-core brick along the length direction of the through-core brick, windows are formed in the left side brick body and the right side brick body, the upper side brick body and the lower side brick body are not provided with windows, and the windows are communicated with the through holes. Compared with the prior art, the utility model has the beneficial effects that: 1) the prefabricated member is made of lightweight concrete and injection-molded vent pipes, is cheap and easy to obtain, can ensure the exhaust function of the roof, has high compatibility with the material of the roof, can effectively operate for a long time, and reduces the construction cost. 2) After the exhaust passage prefabricated member is installed, a continuous exhaust passage can be formed in the exhaust passage, water vapor can easily permeate into the exhaust passage and is exhausted by the vent pipe, and the drainage efficiency is high.

Description

Lightweight concrete roof exhaust passage prefabricated part

Technical Field

The utility model belongs to the technical field of roof construction of constructional engineering, and particularly relates to a prefabricated member of an exhaust duct of a lightweight concrete roof.

Background

The roof is used as an important component of a building house, the roof can play an important role in the aspects of using functions, energy utilization efficiency, indoor environment regulation and the like of the building house, the existing building roof in China has a huge area, the average service life of a common building roof is about 10-15 years, the capacity of annual roof maintenance and treatment is huge, and the maintenance and treatment of the existing building roof is bound to become a normal state.

In order to circulate air in the roof drainage system, stabilize pressure and prevent the water seal from being damaged, a vent pipe is usually arranged. The bottom of the vent pipe needs to be provided with a concrete pier to protect the vent pipe. A multipurpose foamed concrete brick for roof is mainly applied to the fields of roof foam concrete heat-insulating layer cast-in-place, foam concrete surface blocks, foam concrete light wall boards, foam concrete compensation foundations and the like. The building assembled from the preform components at the worksite is referred to as a fabricated building. The assembly type building has high construction speed and low production cost, and is rapidly popularized and developed all over the world. The prefabricated building has the characteristics of standardized accessories, reduced cost, short construction period, convenient construction and the like. However, the prefabricated building structure needs a more stable connection structure than the common building structure formed by pouring, otherwise, the problems of insufficient bearing capacity, structural deformation and the like are easily caused.

SUMMERY OF THE UTILITY MODEL

The utility model aims to provide a prefabricated member of a lightweight concrete roof exhaust passage, which overcomes the defects of the prior art, and is formed by pouring lightweight concrete.

In order to achieve the purpose, the utility model is realized by the following technical scheme:

a prefabricated member of an exhaust passage of a lightweight concrete roof is characterized by comprising a through-center brick, a cross-shaped brick and a vent pipe, wherein a vent pipe mounting groove is arranged upwards in the middle of the cross-shaped brick, holes which are communicated with each other are arranged in four directions of the cross-shaped brick, and the mounting groove is communicated with the holes; the through-core brick is a cuboid, through holes are formed in the through-core brick along the length direction of the through-core brick, windowing is arranged on the left side brick body and the right side brick body, the upper side brick body and the lower side brick body are not provided with windowing, and the windowing is communicated with the through holes.

Furthermore, the window opening position is covered with a gauze.

Furthermore, the two ends of the adjacent through-core bricks in the length direction are provided with tenon-and-mortise structures convenient for connection.

Furthermore, the diameter of the through hole in the through-core brick is 60-120 mm, and the minimum wall thickness is 35-80 mm.

Furthermore, the vent pipe is a plastic or resin injection molding, and the top opening of the vent pipe is bent downwards.

Compared with the prior art, the utility model has the beneficial effects that: 1) the prefabricated member is made of lightweight concrete and injection-molded ventilating pipes, is low in cost and easy to obtain, can be used for various building roof structures, can ensure the dehumidifying and exhausting functions of a roof, is high in compatibility with the materials of the roof, can effectively operate for a long time, and reduces construction cost. 2) The prefabricated member of the exhaust passage can form a continuous exhaust passage inside the prefabricated member, and the window structure of the ventilating brick can ensure that water vapor of a roof drainage system can easily permeate into the exhaust passage and is exhausted by the ventilating pipe, so that the drainage efficiency is high. 3) A plurality of ventilating bricks can be tiled together and communicated with each other, so that the bearing capacity is higher.

Drawings

FIG. 1 is a schematic structural view of an embodiment of a prefabricated member for an exhaust duct of a lightweight concrete roof according to the present invention;

fig. 2 is an application state diagram of an embodiment of the present invention.

In the figure: 1-through core brick; 2-a cross brick; 3-ventilating pipe; 4-holes; 5-a through hole; 6-windowing; 7-gauze; 8-mortise and tenon structure; 9-concrete roofing; 10-a heat-insulating layer; 11-exhaust duct layer; 12-slag slope finding layer; 13-leveling layer; 14-a waterproof layer; 15-a protective layer; 16-exhaust duct preform.

Detailed Description

The technical solutions of the present invention will be described clearly and completely with reference to the accompanying drawings, and it should be understood that the described embodiments are some, but not all embodiments of the present invention.

In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, and it is obvious that the drawings in the following description are some embodiments of the present invention, and other drawings can be obtained by those skilled in the art without creative efforts.

The components of embodiments of the present invention generally described and illustrated in the figures herein may be arranged and designed in a wide variety of different configurations. Thus, the following detailed description of the embodiments of the present invention, presented in the figures, is not intended to limit the scope of the utility model, as claimed, but is merely representative of selected embodiments of the utility model.

Referring to fig. 1-2, the prefabricated member for the lightweight concrete roof exhaust passage comprises a through-center brick 1, a cross brick 2 and a vent pipe 3, wherein an installation groove for the vent pipe 3 is arranged in the center of the cross brick 2 upwards, holes 4 which are communicated with each other are arranged in four directions of the cross brick 2, and the installation groove is communicated with the holes 4; the through-core brick 1 is a cuboid, through holes 5 are formed in the through-core brick along the length direction of the through-core brick, window 6 are formed in the left side brick body and the right side brick body, the window 6 is not formed in the upper side brick body and the lower side brick body, and the window 6 is communicated with the through holes 5.

The position of the window 6 is covered with a gauze 7, so that the slag is prevented from entering while the water vapor is ensured to pass through.

The two ends of the adjacent through-core bricks 1 in the length direction are provided with tenon-and-mortise structures 8 which are convenient to connect, so that the convenience of connection is improved.

The diameter of the through hole 5 on the through-core brick 1 is 60-120 mm, and the minimum wall thickness is 35-80 mm, and the biggest exhaust passage is provided under the condition of ensuring the strength. The thickness of the through-core brick 1 is not more than 10 cm.

The permeability cell 3 is plastics or resin material injection molding, and the open-top direction of permeability cell 3 is crooked downwards, can avoid the rainwater to pour into.

A method for paving prefabricated members of an exhaust duct of a lightweight concrete roof is characterized in that a heat insulation layer 10, an exhaust duct layer 11, a slag slope finding layer 12, a leveling layer 13, a waterproof layer 14 and a protective layer 15 are sequentially arranged on a concrete roof 9, and the method comprises the following specific steps:

1) laying a heat preservation layer 10, laying a polystyrene heat preservation plate on the concrete roof 9, wherein the thickness of the polystyrene heat preservation plate is 50-100 mm, the polystyrene heat preservation plate is divided into two layers, and the abutted seams between the two layers are arranged in a staggered manner; the polystyrene plays a role in heat preservation, and the staggered joints are staggered to play a role in increasing the connection strength;

2) building an exhaust duct layer 11, building an exhaust duct prefabricated part 16 in the middle area of a concrete roof 9, wherein the distance between the outermost boundary of a building area and the periphery of the roof is 0.8-2.0 m, and the periphery of the roof is not built in order to form a ridge angle;

3) paving a slag slope finding layer 12, paving slag on the surfaces of the concrete roof 9 and the exhaust channel layer 11 to form a slope roof with the middle height and the periphery low, wherein the slope is 2%, and the thickness of the slag at the thinnest part is not less than 30 mm; the slag is waste slag of thermal power plants, and the granularity is less than 5 mm.

4) Paving a leveling layer 13, and paving the leveling layer 13 with the thickness of 20-40 mm on the slag slope finding layer 12 by using concrete to form enough sealing strength;

5) manufacturing a waterproof layer 14, manufacturing the waterproof layer 14 on the leveling layer 13 by using a felt, and pouring asphalt oil at the lap joint to increase the waterproof layer 14;

6) and manufacturing a protective layer 15, paving a concrete protective layer 15 with the thickness of 8-20 mm outside the waterproof layer 14, and curing for 7 days.

Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the utility model, the scope of which is defined in the appended claims and their equivalents.

Claims

1. A prefabricated member of an exhaust passage of a lightweight concrete roof is characterized by comprising a through-center brick, a cross-shaped brick and a vent pipe, wherein a vent pipe mounting groove is arranged upwards in the middle of the cross-shaped brick, holes which are communicated with each other are arranged in four directions of the cross-shaped brick, and the mounting groove is communicated with the holes; the through-core brick is a cuboid, through holes are formed in the through-core brick along the length direction of the through-core brick, windowing is arranged on the left side brick body and the right side brick body, the upper side brick body and the lower side brick body are not provided with windowing, and the windowing is communicated with the through holes.

2. The precast product of light weight concrete roof exhaust duct of claim 1, wherein the window is covered with a gauze.

3. The precast member for the exhaust duct of the lightweight concrete roof as claimed in claim 1, wherein the two ends of the adjacent through-core bricks along the length direction thereof are provided with tenon-and-mortise structures for convenient connection.

4. The precast member for the lightweight concrete roof exhaust duct according to claim 1, wherein the diameter of the through hole on the through core brick is 60-120 mm, and the minimum wall thickness is 35-80 mm.

5. The precast product of the lightweight concrete roofing and exhaust duct of claim 1, wherein the air permeability tubes are injection-molded parts made of plastic or resin, and the top openings of the air permeability tubes are bent downwards.