CN212200865U

CN212200865U - Novel composite wall

Info

Publication number: CN212200865U
Application number: CN201921175813.9U
Authority: CN
Inventors: 袁月明; 姜海龙; 周丽娜; 刘海龙; 吕铁彪; 宋阳; 解晨辉; 贾乐心
Original assignee: Jilin Agricultural University
Current assignee: Jilin Agricultural University
Priority date: 2019-07-25
Filing date: 2019-07-25
Publication date: 2020-12-22
Anticipated expiration: 2029-07-25

Abstract

A novel composite wall belongs to the technical field of buildings. The utility model discloses a through wall structure's change, adopt three-layer sandwich composite wall, have the novel composite wall of good thermal insulation performance, structural performance and the lighter characteristics of quality. The utility model comprises an outer conventional concrete layer, a middle sandwich heat-insulating layer and an inner heat-absorbing and heat-accumulating layer; an outer steel wire mesh is arranged inside the outer conventional concrete layer, an inner steel wire mesh is arranged inside the inner heat absorption and heat storage layer, and the middle sandwiched heat insulation layer is arranged between the outer conventional concrete layer and the inner heat absorption and heat storage layer; and plastic connecting pieces are arranged at the upper and lower ends of the outer steel wire mesh and the inner steel wire mesh. The utility model has the characteristics of good thermal insulation performance, structural performance and quality are lighter. The formation of a heat bridge is avoided, so that the heat conductivity coefficient of the composite wall is greatly reduced, and the overall heat insulation performance of the composite wall is improved.

Description

Novel composite wall

Technical Field

The utility model belongs to the technical field of the building.

Background

Based on energy conservation and emission reduction work, the building energy conservation work in China is deepened and improved continuously, and particularly, the establishment of a building energy conservation design standard system has clear requirements on the heat transfer coefficient and the thermal inertia index of an outer wall. At present, two approaches are mainly included for improving the thermal performance of buildings: firstly, a heat insulation layer is additionally arranged outside an existing wall body, the main forms of the heat insulation layer comprise outer wall internal heat insulation, outer wall sandwich heat insulation and outer wall external heat insulation, and the house warming project which is greatly popularized by the current government belongs to the outer wall external heat insulation project; secondly, the technical innovation of the existing wall material is in the transformation, such as the application of perforated bricks, hollow bricks and phase change materials, and the part of the innovation is mainly used for matching and using of newly-built buildings.

In recent years, due to the introduction and sublimation of the concept of the fabricated building, the wall serving as an important component of the building is subject to important technical innovation, and the preparation materials, structures or processes of the wall are greatly improved. However, the existing novel composite wall depends on actual experience and existing production technology in the links of material selection, structural design, product development and the like, and key problems need to be broken through and solved.

Disclosure of Invention

The utility model discloses a through wall structure's change, adopt three-layer sandwich composite wall, have the novel composite wall of good thermal insulation performance, structural performance and the lighter characteristics of quality.

The utility model comprises an outer conventional concrete layer, a middle sandwich heat-insulating layer and an inner heat-absorbing and heat-accumulating layer; an inner steel wire net rack is arranged in the outer conventional concrete layer, an outer steel wire net rack is arranged in the inner heat absorption and heat storage layer, and the middle sandwiched heat insulation layer is arranged between the outer conventional concrete layer and the inner heat absorption and heat storage layer; the upper end and the lower end of the inner steel wire net rack and the outer steel wire net rack are both provided with plastic connecting pieces;

inner steel wire net rack or outer steel wire net rack: the steel bar reinforced concrete structure comprises thicker upper structural steel bars, thicker lower structural steel bars, thinner vertical steel bars and thinner horizontal steel bars; wherein, the thin steel bars are fixed by adopting a mode of binding iron wires, and the thick upper structural steel bars and the thick lower structural steel bars on the two sides are fixed with the thin steel bars contacted with the upper structural steel bars and the thick lower structural steel bars by adopting a mode of binding and electric welding;

molding the connecting piece: the steel frame self-tapping screw comprises a thicker plastic main body, a steel frame insertion groove, a steel frame fixing protrusion, an external self-tapping screw and a screw protection opening, wherein the plastic main body is provided with the steel frame insertion groove;

molding the screw: the two ends of the plastic screw rod are conical, the whole body is provided with threads, the plastic screw rod penetrates through an outer layer conventional concrete layer, a middle sandwich heat-insulating layer, an inner layer heat-absorbing and heat-accumulating layer, an inner steel wire net rack and an outer steel wire net rack, two inner layer plastic screws and two outer layer plastic screws are arranged on the plastic screw rod, the two inner layer plastic screws are respectively arranged between the outer layer conventional concrete layer, the middle sandwich heat-insulating layer and the middle sandwich heat-insulating layer, and the inner layer heat-absorbing and heat-accumulating layer, and the two outer layer plastic screws are respectively arranged outside the outer layer conventional concrete layer and the inner layer heat-absorbing and heat.

The utility model has the characteristics of good thermal insulation performance, structural performance and quality are lighter. The formation of a heat bridge is avoided, so that the heat conductivity coefficient of the composite wall is greatly reduced, and the overall heat insulation performance of the composite wall is improved.

Drawings

FIG. 1 is a sectional view of the three-layer structure of the composite wall of the present invention;

FIG. 2 is a detailed view of the inner and outer wire net rack structure of the present invention;

FIG. 3 is a schematic view of a specially-made plastic connecting piece at the side of the inner and outer steel wire net frames of the utility model;

FIG. 4 is a schematic view of a long plastic screw made of steel wire net frames on the inner and outer sides of the utility model;

FIG. 5 is a schematic view of the installation of the specially-made plastic connecting pieces at the sides of the inner and outer steel wire net frames of the present invention;

fig. 6 is the connection and installation diagram of the inner and outer steel frames and the inorganic heat-insulation board of the utility model.

Detailed Description

The utility model comprises an outer conventional concrete layer 1, a middle sandwich heat preservation layer 2 and an inner heat absorption and storage layer 3; an inner steel wire net rack 4 is arranged inside the outer conventional concrete layer 1, an outer steel wire net rack 5 is arranged inside the inner heat absorption and heat storage layer 3, and the middle sandwiched heat insulation layer 2 is arranged between the outer conventional concrete layer 1 and the inner heat absorption and heat storage layer 3; the upper end and the lower end of the inner steel wire net rack 4 and the outer steel wire net rack 5 are both provided with plastic connecting pieces 7;

inner wire frame 4 or outer wire frame 5: comprises thicker upper structural steel bars 42, thicker lower structural steel bars 41, vertical thinner steel bars 43 and thinner horizontal steel bars 44; wherein, the

thin steel bars

43 and 44 are fixed by the way of iron wire binding, the thick upper structural steel bar 42 and the thick lower structural steel bar 41 on the two sides are fixed with the thin steel bars contacted with the thin steel bars by the mode of binding and electric welding;

and (3) molding the connecting piece 7: the steel frame self-tapping screw comprises a thicker plastic main body 71, a steel frame insertion groove 72, steel frame fixing protrusions 73, external self-tapping screws 75 and screw protection openings 74, wherein the steel frame insertion groove 72 is formed in the plastic main body 71, thicker upper structural steel bars 42 and thicker lower structural steel bars 41 at the upper ends of an inner steel wire net rack 4 and an outer steel wire net rack 5 are inserted into the steel frame insertion groove 72 and clamped by the steel frame fixing protrusions 73 at the lower end of the plastic main body 71 and then fixed through the self-tapping screws 75, the screw protection openings 74 are formed in the side faces of the plastic main body 71, and the external self-tapping screws 75 penetrate through the screw protection openings 74;

molding the screw rod 6: the two ends of the plastic screw 6 are conical, the whole body is provided with threads, the plastic screw 6 penetrates through the outer layer conventional concrete layer 1, the middle sandwich heat-insulating layer 2, the inner layer heat-absorbing and heat-storing layer 3, the inner steel wire net rack 4 and the outer steel wire net rack 5, two inner layer plastic screws 63 and two outer layer plastic screws 64 are arranged on the plastic screw 6, the two inner layer plastic screws 63 are respectively arranged between the outer layer conventional concrete layer 1, the middle sandwich heat-insulating layer 2 and the inner layer heat-absorbing and heat-storing layer 3, and the two outer layer plastic screws 64 are respectively arranged on the outer sides of the outer layer conventional concrete layer 1 and the inner layer heat-absorbing and heat-.

The following is a detailed description of the present invention:

the utility model provides a novel composite wall, this wall body are three-layer sandwich composite wall, have good thermal insulation performance, structural performance and the lighter characteristics of quality.

Composite wall, divide into the three-layer altogether, outer conventional concrete layer 1 promptly, middle sandwich heat preservation 2, inlayer heat absorption heat accumulation layer 3.

The outer layer conventional concrete layer 1 is formed by pouring conventional portland cement and aluminate cement, adding fly ash, stones and the like according to a certain proportion on an outer layer steel wire mesh 4.

The middle layer is a sandwich heat-insulating layer 2 and can be generally made of inorganic flame-retardant materials such as polystyrene heat-insulating plates, polyurethane heat-insulating plates and the like.

The inner layer is a heat absorption and heat storage wall body 3, and is mainly formed by compounding and pouring carbon black, steel fiber, zinc sulfate, magnesium sulfate, ferric oxide, copper oxide, cement and other materials according to a certain proportion on an outer steel wire mesh frame 5. The formed inner wall 3 has good heat absorption performance and certain heat storage capacity, and is greatly beneficial to regulation and control of indoor environment of a matched building.

Three layer construction rely on the parallel interior wire net rack 4 of establishhing to be connected fixedly with inlayer wire net rack 5 and form, wherein inside and outside wire net rack avris adopts purpose-built fashioned 7 line connection of moulding connecting piece to be fixed, inside adopts longer 6 point connection of moulding screw rod to be fixed.

Interior wire rack 4 and outer wire rack 5 adopt tiny reinforcing bar to weave and form, mainly contain thick last structural reinforcement 42, thick lower structural reinforcement 41, the thin reinforcing bar 43 of vertical and thin horizontal reinforcement 44. The

thin steel bars

43 and 44 are fixed by binding with iron wires, and the

thick steel bars

42 and 41 on both sides are fixed with the thin steel bars contacting with the thin steel bars by binding and electric welding.

The plastic connecting piece 7 of the present invention mainly comprises a thick plastic main body 71, a steel frame insertion slot 72, a steel frame fixing protrusion 73, a self-tapping screw 75 and a screw protection opening 75. In practical use, the upper and lower thick steel bars of the inner and outer

steel wire frames

4 and 5 are firstly plugged into the steel frame insertion groove 72, and are ensured to be clamped by the steel frame fixing protrusion 73, and then the self-tapping screw 75 is tapped to complete the secondary fixing function.

Its whole body of longer system screw rod 6 of moulding be provided with the screw thread, both ends 62 are thinner, middle 61 is thicker, be favorable to it to insert in middle with filling heat preservation 2 and insert can not produce great clearance between screw rod spare 6 and heat preservation 2 materials after the assigned position, guaranteed the integrality and the gas tightness of heat preservation 2. Meanwhile, the fixing device is matched with matched

plastic screws

63 and 64 for use, and can realize the functions of fixing the middle heat preservation 2 and locally fixing the inner and outer steel wire net racks.

The use of system connecting piece 7 and long system screw rod 6 is moulded in purpose-built shaping, can effectively avoid directly linking to each other between inside and

outside wire rack

4, 5, avoided the formation of heat bridge to greatly reduced composite wall's coefficient of heat conductivity, improved its whole thermal insulation performance.

During actual preparation, the inner steel wire net rack 4 and the outer steel wire net rack 5 are formed in a weaving and welding mode according to the required wall size. Then the hollow grid structure is formed by placing the hollow grid structure in parallel and inserting the hollow grid structure into the side plastic connecting piece 7. Then insert inorganic fire-retardant material board 2 into the hollow part of rack framework, then will mould system screw rod 6 in the suitable position and respectively through 4 spaces of interior wire rack, inorganic fire-retardant heated

board

2, 5 spaces of outer wire rack, install supporting screw in 6 both sides of screw rod simultaneously and accomplish the fixed of relative position between inorganic fire-retardant heated board 2 and inside and

outside wire rack

4, 5. And then, the steel wire net frames filled with the inorganic flame-retardant heat-insulation boards 2 are tiled, and then matched concrete formworks are arranged around the steel wire net frames to pour the conventional concrete layer 1. After the concrete is formed, the concrete is turned over, and at the moment, a specially configured heat absorption and heat preservation concrete material layer 2 is poured for forming treatment. And obtaining the prefabricated three-layer sandwich heat-insulating concrete wallboard after finishing.

Claims

1. A novel composite wall body is characterized in that: comprises an outer conventional concrete layer (1), a middle sandwich heat-insulating layer (2) and an inner heat-absorbing and heat-storing layer (3); an inner steel wire net rack (4) is arranged inside the outer conventional concrete layer (1), an outer steel wire net rack (5) is arranged inside the inner heat absorption and storage layer (3), and a middle sandwiched heat preservation layer (2) is arranged between the outer conventional concrete layer (1) and the inner heat absorption and storage layer (3); the upper end and the lower end of the inner steel wire net rack (4) and the outer steel wire net rack (5) are both provided with plastic connecting pieces (7);

an inner steel wire net rack (4) or an outer steel wire net rack (5): comprises thicker upper structural steel bars (42), thicker lower structural steel bars (41), vertical thinner steel bars (43) and thinner horizontal steel bars (44); wherein, the thin steel bars (43) and (44) are fixed by adopting a mode of wire bonding, and the thick upper structural steel bars (42) and the thick lower structural steel bars (41) at the two sides are fixed with the thin steel bars contacted with the thin steel bars by adopting a mode of binding and electric welding;

plastic connector (7): the steel frame self-tapping screw comprises a thicker plastic main body (71), a steel frame insertion groove (72), steel frame fixing protrusions (73), external self-tapping screws (75) and screw protection openings (74), wherein the steel frame insertion groove (72) is formed in the plastic main body (71), thick upper structural steel bars (42) and thick lower structural steel bars (41) at the upper ends of an inner steel wire net rack (4) and an outer steel wire net rack (5) are inserted into the steel frame insertion groove (72) and clamped by the steel frame fixing protrusions (73) at the lower end of the plastic main body (71) and then fixed through the self-tapping screws (75), screw protection openings (74) are formed in the side faces of the plastic main body (71), and the external self-tapping screws (75) penetrate through the screw protection openings (74);

molding screw (6): the two ends of the plastic screw (6) are conical, the whole body is threaded, the plastic screw (6) penetrates through an outer conventional concrete layer (1), a middle sandwich heat-insulating layer (2), an inner heat-absorbing and heat-storing layer (3), an inner steel wire net rack (4) and an outer steel wire net rack (5), two inner plastic screws (63) and two outer plastic screws (64) are arranged on the plastic screw (6), the two inner plastic screws (63) are respectively arranged between the outer conventional concrete layer (1), the middle sandwich heat-insulating layer (2) and the middle sandwich heat-insulating layer (2), and the inner heat-absorbing and heat-storing layer (3), and the two outer plastic screws (64) are respectively arranged outside the outer conventional concrete layer (1) and the inner heat-absorbing and heat-storing layer (3).