Fabricated passive building thermal insulation system thermal bridge breaking connecting piece

Abstract

The utility model discloses a heat-insulating bridge connecting piece of an assembly type passive building heat-insulating system, which relates to the technical field of building heat insulation and comprises a split bolt, the peripheral surface of the split bolt is coated with a heat-insulating bridge sleeve, and the heat-insulating bridge sleeve is mounted in a through hole formed in a heat-insulating wall in advance; connecting assemblies are installed at the two ends of the split bolt and fixedly connected with the steel wire mesh, and a heat insulation bridge cap is installed at the end of the split bolt. The connecting assembly comprises a pressing buckle and a support, the pressing buckle and the support are both arranged on the split bolt in a sleeving mode, a nut is installed on the end face of the split bolt, the nut abuts against the pressing buckle, and the support abuts against the opening of the thermal bridge breaking sleeve. The heat bridge breaking connecting piece of the assembly type passive building heat preservation system is simple in structure, convenient to install and capable of effectively reducing the heat bridge effect and improving the building energy efficiency.

Description

TECHNICAL FIELD

[0001] The utility model relates to building thermal insulation technical field especially relates to the assembled passive building thermal insulation system heat bridge connecting piece. BACKGROUND

[0002] The assembled building is a kind of building mode by prefabricated component production in factory, transportation to construction site and assembly, with the advantages of controllable quality, energy saving and environmental protection and shortening construction period.As an important component of assembled building, thermal insulation system directly influences the energy efficiency and comfort of building.

[0003] The production mode of the existing building outer wall is all using prefabricated composite process to produce building outer wallboard with thermal insulation layer.And this outer wallboard with thermal insulation layer is generally composed of three layers, two sides are concrete layer, and the middle is thermal insulation board layer.Under normal circumstances, the material strength of thermal insulation board layer is not high, so connecting piece is used to connect between two concrete layers to become a whole, to achieve better thermal insulation effect.Usually, connecting piece only adopts metal material, and metal connection is not insulated, so metal connecting piece is easy to conduct heat between inner wall and outer wall, forms heat bridge and causes energy loss, wall condensation, mildew and other problems, influences building performance and durability.

[0004] How to develop assembled passive building thermal insulation system heat bridge connecting piece, simple structure, convenient to install, reduce heat bridge effect, improve building energy efficiency, become the technical problem that technical personnel in the field urgently solve. INVENTION CONTENTS

[0005] The utility model aims at providing assembled passive building thermal insulation system heat bridge connecting piece, solves the problems listed in the background art.

[0006] To solve the above technical problems, the utility model adopts the following technical scheme:

[0007] The utility model assembled passive building thermal insulation system heat bridge connecting piece, including the tension bolt, the outer circumferential surface of tension bolt is covered with heat bridge sleeve, heat bridge sleeve is installed in the through hole of thermal insulation wall body and is preformed,

[0008] Two ends of the tension bolt are equipped with connecting assembly, connecting assembly is fixedly connected with steel wire net, and heat bridge cap is installed at the end of the tension bolt, connecting assembly includes press buckle and support, press buckle and support are all sleeved on the tension bolt, the end surface of the tension bolt is equipped with nut, nut and press buckle abut, and support and the opening of heat bridge sleeve abut.

[0009] Preferably, the pressing buckle is L-shaped, a first oval through hole is arranged at the long edge end of the pressing buckle, and a hook is arranged at the short edge end of the pressing buckle, and the hook is arranged on the side away from the L-shaped surface of the pressing buckle.

[0010] Preferably, the support is L-shaped, a second oval through hole is arranged at the long edge end of the support;

[0011] The hook and the short edge end of the support are fixedly connected with the steel wire mesh.

[0012] Preferably, the heat insulation bridge sleeve and the heat insulation bridge cap are made of plastic material, and the plastic material includes nylon, polyurethane or polyethylene.

[0013] Preferably, the length of the heat insulation bridge sleeve is 200-500 mm.

[0014] Preferably, the diameter of the steel wire mesh is 2.5 mm.

[0015] Preferably, the tension bolt, the pressing buckle and the support are made of metal material, and the specification of the tension bolt is M8.

[0016] Compared with the prior art, the beneficial technical effects of the utility model are:

[0017] The heat insulation bridge connecting piece of the utility model is characterized in that: a heat insulation bridge sleeve is arranged in the heat preservation wall body, a tension bolt is arranged in the heat insulation bridge sleeve, the end of the tension bolt is fixedly connected with the steel wire mesh through a connecting assembly, a heat insulation bridge cap is arranged at the end of the tension bolt, and the connecting assembly and the heat insulation bridge cap are coated by spraying mortar on the outer wall surface of the heat preservation wall body, so that heat transfer is blocked, the structure is simple, installation is facilitated, the heat bridge effect is effectively reduced, and the building energy efficiency is improved. BRIEF DESCRIPTION OF DRAWINGS

[0018] The utility model will be further described in connection with the drawings.

[0019] Figure 1 It is a cross-sectional view of the heat insulation bridge connecting piece of the utility model;

[0020] Figure 2 It is a top view of the heat insulation bridge cap of the utility model;

[0021] Figure 3 It is a cross-sectional view of the heat insulation bridge cap of the utility model;

[0022] Figure 4 It is a top view of the pressing buckle of the utility model;

[0023] Figure 5It is the pressure buckle profile schematic view of the utility model;

[0024] Figure 6 It is the support overhead schematic view of the utility model;

[0025] Figure 7 It is the support profile schematic view of the utility model;

[0026] Figure 8 It is the profile schematic view of the utility model assembled passive building thermal insulation system thermal bridge connecting piece use state.

[0027] Mark explanation: 1, thermal bridge sleeve; 2, steel wire net; 3, thermal bridge cap; 4, anchor bolt; 5, pressure buckle; 6, support. Specific implementation

[0028] In order to make the technical problem, technical scheme and beneficial effect to be solved in the utility model more clearly understood, the following is combined with the drawings and examples, and the utility model is further described in detail.It should be understood that the specific examples described herein are only used to explain the utility model, and are not used to limit the utility model.

[0029] As Figures 1-8 Indicated, assembled passive building thermal insulation system thermal bridge connecting piece, including anchor bolt 4, the outer circumferential surface of anchor bolt 4 is covered with thermal bridge sleeve 1, the thermal bridge sleeve 1 is installed in the through hole that thermal insulation wall body is previously opened, thermal bridge sleeve can block anchor bolt with thermal insulation wall body, prevent heat transfer between anchor bolt and thermal insulation wall body;

[0030] The both ends of anchor bolt 4 are provided with connecting assembly, the connecting assembly is fixedly connected with steel wire net 2, and thermal bridge cap 3 is installed at the end of anchor bolt 4, and the end of anchor bolt is covered with thermal bridge cap, to prevent heat transfer at both ends of anchor bolt.

[0031] Specifically, the connecting assembly includes pressure buckle 5 and support 6, the pressure buckle 5 and the support 6 are sleeved on the anchor bolt 4, the end surface of the anchor bolt 4 is provided with a nut, the nut abuts against the pressure buckle 5, and the support 6 abuts against the opening of the thermal bridge sleeve 1.

[0032] Specifically, the shape of the pressure buckle 5 is L-shaped, a first oval through hole is formed at the long edge end of the pressure buckle 5, a hook is arranged at the short edge end of the pressure buckle 5, and the hook is away from the L-shaped surface of the pressure buckle 5;

[0033] The shape of the support 6 is L-shaped, a second oval through hole is formed at the long edge end of the support 6;

[0034] The hook is fixedly connected with the short end of the support 6 and the steel wire mesh 2;

[0035] The pressing buckle and the support are respectively sleeved on the tension bolt through the first and second oval through holes, and are matched with the position of the steel wire mesh through the oval through holes.

[0036] Specifically, the thermal bridge sleeve 1 and the thermal bridge cap 3 are made of plastic material; the plastic material includes nylon, polyurethane or polyethylene.

[0037] Specifically, the length of the thermal bridge sleeve 1 is 200-500mm, and the length of the thermal bridge sleeve is determined according to the thickness of the thermal insulation wall.

[0038] Specifically, the diameter of the steel wire mesh 2 is 2.5mm.

[0039] Specifically, the tension bolt 4, the pressing buckle 5 and the support 6 are made of metal material, and the specification of the tension bolt 4 is M8, the length of the tension bolt is determined according to the thickness of the thermal insulation wall, and the length for connecting the connecting assembly is reserved at the end of the tension bolt.

[0040] Example one

[0041] The thickness of the thermal insulation wall is 300mm, the length of the thermal bridge sleeve is 300mm, and the length of the tension bolt is 325mm;

[0042] The thickness of the pressing buckle is 1.2mm, the width of the pressing buckle is 25mm, the height of the L-shaped short side of the pressing buckle is 13.5mm, the length of the L-shaped long side of the pressing buckle is 35mm, and the radius of the hook is 1.25mm;

[0043] The thickness of the support is 1.5mm, the width of the support is 25mm, the height of the L-shaped short side of the support is 12.5mm, and the length of the L-shaped long side of the support is 36mm;

[0044] The thermal bridge cap is a hexagonal structure, the wall thickness is 2mm, the distance between the two parallel outer sides is 18mm, and the distance between the two parallel inner sides is 14mm;

[0045] The first and second oval through holes are consistent in size, the length of the straight line segment is 14mm, the radius of the semicircle is 4.5mm, and the center distance of the semicircle away from the L-shaped short side from the side length of the L-shaped short side is 10.5mm;

[0046] During installation, the thermal bridge sleeve is installed in the through hole of the thermal insulation wall, the opening of the thermal bridge sleeve is flush with the wall surface of the thermal insulation wall, the anchor bolt is installed in the thermal bridge sleeve, the support is sleeved on the end of the anchor bolt, the support abuts against the thermal insulation wall, the steel mesh is placed on the L-shaped short side of the support, the center of the steel mesh is 15mm away from the wall surface of the thermal insulation wall, the pressing buckle is continuously installed on the end of the anchor bolt, the hook of the pressing buckle is matched with the L-shaped short side of the support, the steel mesh is covered, the nut is screwed on the end of the anchor bolt, the support and the pressing buckle are matched to be fixedly connected with the steel mesh;

[0047] The thermal bridge cap is sleeved on the end of the anchor bolt, the M20 mortar layer is sprayed on the outer wall surface of the thermal insulation wall after the thermal bridge cap is sleeved, and the thickness of the mortar layer is 30mm;

[0048] The thermal bridge sleeve is installed in the thermal insulation wall, the anchor bolt is installed in the thermal bridge sleeve, the steel mesh is fixedly connected with the anchor bolt through the connecting assembly, the thermal bridge cap is installed on the end of the anchor bolt, and the connecting assembly and the thermal bridge cap are covered by spraying the mortar on the outer wall surface of the thermal insulation wall, so that the heat transfer is blocked, the structure is simple, the installation is convenient, the thermal bridge effect is effectively reduced, and the building energy efficiency is improved.

[0049] It should be noted that, in this text, the relationship terms such as first and second are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any actual relationship or order between the entities or operations. Moreover, the term "includes", "contains" or any other variant thereof is intended to cover non-exclusive inclusion, so that the process, method, article or equipment including a series of elements not only includes those elements, but also includes other elements not explicitly listed or inherent to such process, method, article or equipment.

[0050] The above-described embodiments are only used to describe the preferred modes of the present application, and do not limit the scope of the present application, and various modifications and improvements of the technical solutions of the present application made by those skilled in the art without departing from the design spirit of the present application shall fall within the protection scope of the present application.

Claims

1. A thermal bridge connection for a prefabricated passive building insulation system, comprising a tension rod (4), characterized in that: The outer circumferential surface of the pair of pull bolts (4) is covered with a thermal bridge sleeve (1) which is installed in a through hole of a thermal insulation wall body; Both ends of the pair of pull bolts (4) are provided with a connecting assembly which is fixedly connected with a steel wire mesh (2), and a thermal bridge cap (3) is installed at the end of the pair of pull bolts (4); The connecting assembly comprises a pressing buckle (5) and a support (6), the pressing buckle (5) and the support (6) are sleeved on the pair of pull bolts (4), a nut is installed on the end surface of the pair of pull bolts (4), the nut abuts against the pressing buckle (5), and the support (6) abuts against the opening of the thermal bridge sleeve (1).

2. The prefabricated thermal bridge break connection for passive building envelopes according to claim 1, characterized in that: The shape of the pressing buckle (5) is L-shaped, a first elliptical through hole is formed at the long edge end of the pressing buckle (5), a hook is arranged at the short edge end of the pressing buckle (5), and the hook is away from the L-shaped surface of the pressing buckle (5).

3. The prefabricated thermal bridge break connection for passive building envelopes according to claim 2, characterized in that: The shape of the support (6) is L-shaped, a second elliptical through hole is formed at the long edge end of the support (6); The hook, the short edge end of the support (6) and the steel wire mesh (2) are fixedly connected.

4. The prefabricated thermal bridge break connection for passive building envelopes according to claim 1, characterized in that: The thermal bridge sleeve (1) and the thermal bridge cap (3) are made of plastic material; the plastic material comprises nylon, polyurethane or polyethylene.

5. The prefabricated thermal bridge break connection for passive building envelopes according to claim 4, characterized in that: The length of the thermal bridge sleeve (1) is 200-500 mm.

6. The prefabricated passive building envelope thermal bridge connector of claim 1, wherein: The diameter of the steel wire mesh (2) is 2.5 mm.

7. The prefabricated thermal bridge break connection for passive building envelopes according to claim 3, characterized in that: The pair of pull bolts (4), the pressing buckle (5) and the support (6) are made of metal material, and the specification of the pair of pull bolts (4) is M8.

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