CN209942154U - Prefabricated plastering-free residential exhaust passage - Google Patents

Abstract

The utility model provides a prefabricated plastering-free residential exhaust passage, which comprises a cement mortar pipeline, wherein a plastering layer structure integrated with the cement mortar pipeline is arranged on the outer side of the cement mortar pipeline in the wall thickness direction of the exhaust passage; wherein, the utility model discloses plastering layer structure and cement mortar pipeline integrated into one piece, the two main material is cement mortar. The utility model discloses an aspect has increased the wall thickness of preparation exhaust passage, and on the other hand has solved the complicated, the abominable scheduling problem of operational environment of process of plastering behind the installation of house exhaust passage to eliminated the quality general illness that produces the hollowing because of the not jail of plastering that the process of plastering caused, avoided the later stage to cut open and repair the operation.

Description

Prefabricated plastering-free residential exhaust passage

Technical Field

The utility model belongs to the technical field of the house exhaust passage, concretely relates to prefabricated house exhaust passage of exempting from structure of plastering.

Background

The residential exhaust duct is also called residential exhaust duct and residential discharge flue, and is a shared exhaust duct system installed in residential kitchens and toilets and used for discharging oil smoke gas generated in cooking activities of residential kitchens or foul air in toilets. The residential exhaust duct is a thin-wall pipeline prefabricated by cement mortar, the wall thickness is about 15mm, and a layer of steel wire mesh reinforcing material is generally arranged in the residential exhaust duct due to the thin wall thickness so as to increase the structural strength. At present, the problems mainly faced by the residential exhaust duct are as follows:

1. along with the progress of the mechanical manufacturing technology, in the production process of the residential exhaust passage in China, the production process of the mechanical vibration of the inner core mold and the outer sleeve mold matched with grouting is more and more widely used, and during production, because a forming gap between the inner core mold and the outer sleeve mold is narrow (the thickness of the wall of the exhaust passage is consistent and is about 15mm), a layer of steel wire mesh structure is also arranged in the gap, cement mortar is difficult to pour, and the surface of a product is easy to have common quality defects such as exposed meshes, honeycombs, even holes and the like;

2. the exhaust duct is thin in wall thickness, so that on one hand, the strength is insufficient, and the exhaust duct is easy to damage in the process of carrying and installing; on the other hand, the protective layer of the steel wire mesh reinforced material is insufficient, so that the steel wire mesh reinforced material is easy to break due to corrosion, and the service life is influenced. In addition, the wall thickness of the exhaust passage is too thin, and the heat insulation performance of the exhaust passage is difficult to meet the requirement during fire resistance detection;

3. a plurality of finished product flues of the exhaust passage are connected in a butt joint mode, and the phenomenon of smoke leakage at the joint is easy to occur due to insufficient butt joint area.

After the residential exhaust duct is installed in place, the periphery of the exhaust duct must be subjected to net hanging and plastering operation, the thickness of a plastering layer is about 15-40 mm, and otherwise the exhaust duct is easy to crack in the use process. The main problems brought by the on-site operation of net hanging and plastering are as follows:

1. the construction procedures of net hanging and plastering are increased, and the construction period is prolonged;

2. the surface of the exhaust passage is provided with a release agent (mainly used oil), so that a plastering layer is easy to be bonded insecurely to cause hollowing, and the hollowing part needs to be chiseled for repairing at the later stage;

3. the demands on the technical workers such as plasterers and plasterers are increased.

Therefore, there is a strong need for a prefabricated plastering-free residential exhaust duct to solve the above problems.

SUMMERY OF THE UTILITY MODEL

To prior art's defect, the utility model provides a prefabricated house exhaust passage of exempting from structure of plastering, it sets up rather than forming into an organic whole the layer structure of plastering through the outside at cement mortar pipeline, has increased the wall thickness of preparation exhaust passage on the one hand, and on the other hand has solved the process of plastering behind the house exhaust passage installation complicacy, the abominable scheduling problem of operational environment to eliminated the quality general illness that produces the hollowing because of the process of plastering that causes plasters insecure, avoided the later stage to cut a hole and repair the operation.

In order to realize the above-mentioned purpose, the utility model provides a prefabricated house exhaust passage of exempting from structure of plastering, including the cement mortar pipeline, on exhaust passage wall thickness direction, the outside of cement mortar pipeline is provided with the layer structure of plastering that forms an organic whole with the cement mortar pipeline.

In the above technical scheme of the utility model, the main material of plastering layer structure and cement mortar pipeline integrated into one piece, the two is cement mortar, and wherein, the thickness on plastering layer is preferred to be greater than or equal to the thickness of exhaust passage, and the thickness on plastering layer is preferred 15-40 mm, and further, the thickness on plastering layer is preferred to be 15-30 mm.

Specifically, in the manufacturing process, the plastering layer structure and the cement mortar pipeline are manufactured at the same time, and no obvious joint exists between the plastering layer structure and the cement mortar pipeline, so that the phenomenon of gaps is avoided; the utility model creatively simplifies the manufacturing process of the exhaust passage and the process of hanging net plastering, and is uniformly finished in a production workshop, namely, the wall thickness of the exhaust passage manufactured by production comprises the wall thickness of a cement mortar pipeline and the wall thickness of a plastering layer structure; particularly, reinforcing material mesh fabrics are arranged in the cement mortar pipeline and the plastering layer structure, and the exhaust passage manufactured by the production comprises the reinforcing material mesh fabrics of the cement mortar pipeline and the reinforcing material mesh fabrics of the plastering layer structure.

Wherein, the reinforcing material mesh cloth comprises alkali-resistant glass fiber mesh cloth and non-woven fabric.

Specifically, the utility model discloses the process of well laying reinforcing material screen cloth only goes on in the exhaust passage manufacturing process, cancels the process of laying reinforcing material screen cloth in original plastering process, has simplified the technology of construction.

According to the utility model discloses a another kind of embodiment is provided with continuous steel wire reinforcing net piece between cement mortar pipeline and plastering layer, and steel wire reinforcing net piece is wavy setting, and partial steel wire reinforcing net piece is located cement mortar pipeline, and partial steel wire reinforcing net piece is located plastering layer structure.

Wherein, the exhaust passage main part that cement mortar pipeline and plastering layer structure formed, steel wire reinforcing net piece are located between the internal surface and the surface of exhaust passage main part to reinforcing overall structure's intensity.

Preferably, the shape of the wire reinforcing mesh includes triangular wave shape, sinusoidal wave shape, trapezoidal wave shape, bell wave shape, and square wave shape.

In addition, in order to simplify the manufacturing process, a reinforcing mesh can be arranged in the residential exhaust duct and is buried in the cement mortar pipeline and/or the plastering layer structure; the reinforcing mesh can be buried in the cement mortar pipeline or in the plastering layer structure, and is preferably thicker as the reinforcing mesh is integrally and preferably buried in the central position of the exhaust passage main body part formed by the plastering layer structure and the cement mortar pipeline, so that the stability of the whole structure is further improved.

According to the utility model discloses a another kind of embodiment, cement mortar pipeline includes four lateral walls, and four lateral walls enclose to close and form rectangle form cement mortar pipeline, and the outside of two at least adjacent lateral walls is provided with the layer structure of plastering rather than forming as an organic whole.

For example, only two adjacent side walls are provided with a plastering layer structure which is formed integrally with the two adjacent side walls, and at the moment, the other two side walls which are not provided with the plastering layer structure are arranged close to the right-angled corner of the wall body and are in direct contact with the wall; under the condition that three adjacent side walls are provided with a plastering layer structure which is integrated with the three adjacent side walls, the other side wall without the plastering layer structure is directly attached to the wall and is in direct contact with the wall; when four lateral walls all set up the layer structure of plastering, aforementioned mounting means all can, and any lateral wall all can paste to the wall setting promptly, or four lateral walls all do not all are close to the wall setting.

According to the utility model discloses a another kind of embodiment, cement mortar pipeline has the finished product flue of many mutual butt joints, is provided with socket joint structure at the tip of finished product flue.

Wherein, the bearing structure is preferably a step-shaped socket connection structure.

The utility model discloses possess following beneficial effect:

the utility model simplifies the traditional construction procedures of exhaust passage manufacturing, net hanging plastering and the like into one procedure, and is uniformly finished in a production workshop, thus being simple and convenient;

the utility model increases the wall thickness of the exhaust passage, the distance between the inner core mould and the outer sleeve mould is widened by one time or more than one time, and the cement mortar pouring becomes easy; the integral wall thickness of the exhaust passage is increased, so that the structural strength is greatly improved, the contact area of the joint is increased, and the sealing performance of the joint is improved; meanwhile, the heat insulation performance is greatly improved during fire resistance detection;

the utility model is convenient for the installation process of the exhaust passage, cancels the net hanging and plastering, simplifies the construction process and shortens the construction period; the common quality problem of hollowing caused by unfirm plastering is eliminated, and the later-stage cutting and repairing operation is avoided; and meanwhile, the manual requirement is reduced.

The utility model has high structural strength and is not easy to be damaged in the process of carrying and installation; the rust-proof ability is enhanced, and the service life is greatly prolonged.

The present invention will be described in further detail with reference to the accompanying drawings.

Drawings

FIG. 1 is a schematic structural view of an end face of an embodiment 1 of a residential exhaust duct with a prefabricated plastering-free structure;

FIG. 2 is a schematic view of a corner of FIG. 1;

FIG. 3 is a schematic longitudinal installation diagram of embodiment 1 of the residential exhaust duct with a prefabricated plastering-free structure according to the present invention;

FIG. 4 is a schematic cross-sectional view of the exhaust duct of the prefabricated plastering-free residential building of the present invention in the embodiment 2;

FIG. 5 is a schematic view of the installation of embodiment 3 of the residential exhaust duct with a prefabricated plastering-free structure.

Detailed Description

In the drawings of the present invention, the dotted line position has no specific structure, the cement mortar pipe and the plastering layer structure are integrated at the dotted line position without any boundary, the dotted line in the drawings is only for the convenience of description of the present invention and simplifying the description, and the pointed position is not indicated or suggested to have a specific orientation structure or operation, and thus, the present invention cannot be understood as being limited to the protection scope of the present invention.

Example 1

As shown in fig. 1-3, the residential exhaust duct with the prefabricated plastering-free structure comprises a cement mortar pipeline 1 and a plastering layer structure 2 integrally formed with the cement mortar pipeline.

Wherein, cement mortar pipeline 1 has four lateral walls 11, and the thickness of layer structure 2 of plastering is formed in the outside of four lateral walls 11, and the wall thickness of lateral wall is 15mm, and the thickness of layer structure 2 of plastering is greater than or equal to the wall thickness of lateral wall, and is preferred, and the thickness L of layer structure 2 of plastering is preferably 15-40 mm, and the thickness of the layer of plastering in this embodiment is 20 mm.

In the manufacturing process of the residential exhaust duct in the embodiment, the residential exhaust duct is manufactured by adopting the machine-made molds of the inner core mold and the outer sleeve mold, wherein the distance between the inner core mold and the outer sleeve mold is the sum of the thicknesses of the side wall and the plastering layer structure 2, namely 35mm, in the production process of the machine-made molds, the cement mortar with the width of 35mm enough for the smaller water cement ratio (0.5 or even below) is freely filled into the forming space of the molds, particularly when the steel wire mesh is additionally arranged, the cement mortar can still be normally poured, and bad phenomena such as net exposure and honeycomb can not occur.

Specifically, in this embodiment, a reinforcing mesh material 3 may be further added, wherein an arrangement manner of one preferable reinforcing mesh material is shown in fig. 2, and the reinforcing mesh material 3 includes an alkali-resistant glass fiber mesh fabric or a non-woven fabric.

The cement mortar pipeline 1 in the embodiment is provided with a plurality of finished product flues 11A which are mutually butted, and the end part of the finished product flue 11A is provided with the socket structure 4, as shown in figure 3, the socket structure 4 is preferably a step-shaped socket connection structure, and because the wall thickness of the whole exhaust passage is large, the socket mode has better sealing performance, and the problems of smoke leakage and odor tainting caused by the fact that the joint is not sealed are solved.

Example 2

As shown in fig. 4, in the residential exhaust duct with the prefabricated plastering-free structure, on the basis of the embodiment 1, a continuous steel wire reinforcing mesh 5 is arranged between a cement mortar pipeline 1 and a plastering layer structure 2, wherein the steel wire reinforcing mesh 5 is arranged in a wavy manner, part of the steel wire reinforcing mesh is positioned in the cement mortar pipeline, and part of the steel wire reinforcing mesh is positioned in the plastering layer structure.

Specifically, the exhaust passage main body is formed by the cement mortar pipeline 1 and the plastering layer structure 2, and the steel wire reinforcing mesh 5 is positioned between the inner surface and the outer surface of the exhaust passage main body so as to reinforce the strength of the whole structure.

The shape of the wire reinforcing mesh 5 includes triangular wave, sinusoidal wave, trapezoidal wave, bell wave, and square wave, and the trapezoidal wave wire reinforcing mesh is shown in the present embodiment.

Example 3

As shown in fig. 5, the present embodiment differs from embodiment 1 in that three adjacent side walls 11a are provided with a plastering layer structure 2 formed integrally therewith, and the remaining one side wall 11b is not provided with a plastering layer structure 2.

In particular, the aforesaid one side wall 11b, not provided with the structure of plasterboard 2, is affixed to the wall 6 during installation, in direct contact with the wall 6.

Although the present invention has been described with reference to the preferred embodiments, it is not intended to limit the scope of the invention. Any person skilled in the art can make some modifications without departing from the scope of the invention, i.e. all equivalent modifications made according to the invention are intended to be covered by the scope of the invention.

Claims (8)

1. The prefabricated plastering-free residential exhaust passage comprises a cement mortar pipeline and is characterized in that a plastering layer structure integrated with the cement mortar pipeline is arranged on the outer side of the cement mortar pipeline in the wall thickness direction of the exhaust passage.

2. A residential exhaust duct of a prefabricated plastering-free structure as claimed in claim 1, wherein the thickness of the plastered layer structure is 15-40 mm.

3. A residential exhaust duct with a prefabricated plastering-free structure as claimed in claim 1, wherein a mesh of reinforcing material is provided in both the cement mortar piping and the plastering layer structure.

4. The residential exhaust duct with the prefabricated plastering-free structure as claimed in claim 3, wherein the mesh of the reinforcing material comprises alkali-resistant glass fiber mesh cloth or non-woven cloth.

5. The residential exhaust duct with a prefabricated plastering-free structure according to claim 1, wherein a continuous steel wire reinforcing mesh is arranged between a cement mortar pipeline and the plastering layer structure, the steel wire reinforcing mesh is arranged in a wave shape, part of the steel wire reinforcing mesh is positioned in the cement mortar pipeline, and part of the steel wire reinforcing mesh is positioned in the plastering layer structure.

6. The residential exhaust duct with a prefabricated plastering-free structure as claimed in claim 1, further comprising a mesh reinforcement buried in the cement mortar piping and/or the plastering layer structure.

7. A prefabricated plastering-free residential exhaust duct according to claim 1, wherein the cement mortar pipe comprises four side walls, the four side walls enclose to form a rectangular cement mortar pipe, and the outer sides of at least two adjacent side walls are provided with the plastering layer structure integrally formed therewith.

8. A residential exhaust duct with a prefabricated plastering-free structure as claimed in any one of claims 1 to 6, wherein the cement mortar pipe has a plurality of finished flues butted against each other, and a socket structure is provided at the end of the finished flues.

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