CN219753805U - T-shaped composite keel and heat insulation structure comprising same - Google Patents

Abstract

The utility model provides a T-shaped composite keel (1), comprising: a T-shaped base body (2) made of wood or metal; and a thermal insulation layer (3) covering the base body (2), wherein the thermal insulation layer is made of a closed cell foam material or aerogel, wherein the base body (2) comprises a transverse member (21) and a longitudinal member (22) having a first end (221) and a second end (222), the first end of the longitudinal member being fixedly connected to an intermediate position of the transverse member. The utility model also provides a heat preservation structure comprising the T-shaped composite keel.

Description

T-shaped composite keel and heat insulation structure comprising same

Technical Field

The utility model relates to the field of buildings, in particular to a T-shaped composite keel and a heat insulation structure comprising the T-shaped composite keel.

Background

By improving the heat preservation, heat insulation, air tightness and other properties of the building, natural resources and natural energy sources are adopted as sources of heating, refrigerating, lighting and the like, and the heat preservation, heat insulation, air tightness and other properties are hot spots in the building industry at present. In particular, the concept of passive houses, which is proposed by germany as the origin, has been popularized and used by many countries.

Besides improving the heat preservation performance of the house, no thermal bridge is one of effective methods for reducing the energy consumption of the building. In the building envelope, the details nodes such as edges, corners and points inevitably occur, and heat is inevitably conducted at such details nodes, so that sealing repair or redesign is required at these details nodes.

For the heat insulation layer of the building, especially for the heat insulation structure of the inner wall, the outer wall and the roof, the heat insulation structure is designed by a plurality of layers of materials, a T-shaped keel is usually required to be arranged as a structural supporting piece, and the T-shaped keel is directly contacted with the wall body, so that the T-shaped keel becomes a heat conduction point to generate a heat bridge. The thermal bridge refers to reinforced concrete or metal beams, columns, ribs and the like in the enclosure structures such as the outer wall, the roof and the like. These parts are called thermal bridges because of their strong heat transfer capability, dense heat flow and low internal surface temperature.

Disclosure of Invention

The utility model aims to provide a T-shaped composite keel which adopts a low heat conduction material to partially replace wood or metal such as steel material, so that the heat insulation performance can be increased, and a heat bridge can be blocked.

To this end, the present utility model provides a T-shaped composite keel comprising: a T-shaped matrix made of wood or metal and a thermal insulation layer surrounding said matrix, wherein said thermal insulation layer is made of a closed cell foam or aerogel, wherein the matrix comprises a transverse member and a longitudinal member, the longitudinal member having a first end and a second end, the first end of the longitudinal member being fixedly connected to an intermediate position of the transverse member.

According to one aspect of the utility model, the transverse member may be a cylinder having a constant cross section and the longitudinal member may be a cylinder. In particular, the transverse members may be square, cylindrical or prismatic, etc., while the longitudinal members may be cylinders of constant cross-section, such as square, cylindrical or prismatic, etc., or cylinders of varying cross-section, such as truncated cones, truncated prisms, truncated square, or other shaped cylinders, etc. And, the transverse member and the longitudinal member may be fixedly connected in various ways.

According to a preferred embodiment of the utility model, the cross section of the transverse member may be rectangular, for example square, and the longitudinal member may have a constant rectangular, for example square or trapezoidal cross section. Because the T-shaped composite keel is generally horizontally arranged when in use, the longitudinal component is also horizontally arranged under the condition that one side of the lower part is mainly stressed, and the T-shaped composite keel has better strength due to the trapezoidal cross section of the longitudinal component.

According to a preferred embodiment of the utility model, the transverse member has a first length, in which a plurality of first holes distributed along the first length may be provided; the longitudinal member has a second length, and a plurality of second apertures distributed along the second length are provided in the longitudinal member. By providing a plurality of holes in the transverse and longitudinal members, the adhesion between the closed cell foam or aerogel and the matrix can be increased. Here, the first hole and the second hole are preferably through holes, and the holes are preferably circular holes in shape, with which stress concentration can be avoided. In addition, the holes may be distributed in various ways according to the stress of the substrate itself, for example, the first holes may be through holes uniformly spaced and aligned along the first length, and the second holes may be through holes uniformly spaced and aligned along the second length. Alternatively, the plurality of first holes includes a first set of first through holes and a second set of first through holes, the first set of first through holes and the second set of first through holes being staggered at equal intervals along the first length; the plurality of second holes includes a first set of second through holes and a second set of second through holes, the first set of second through holes and the second set of second through holes being staggered at equal intervals along the second length. It should be understood that the above arrangement of holes is merely exemplary and that other suitable arrangements are also contemplated as falling within the scope of the present utility model.

According to one aspect of the utility model, the cross-section of the transverse member may be rectangular, e.g. square, the longitudinal member being configured to diverge from the first end towards the second end, the longitudinal member has a rectangular or circular cross section, and the angle alpha between the transverse member and the outer peripheral surface of the longitudinal member is in the range of 70 DEG.ltoreq.alpha < 90 deg.

According to another aspect of the utility model, the cross section of the transverse member may be rectangular, for example square, the longitudinal member may have a first section tapering from the first end towards its middle position and a second section tapering from the middle position towards the second end, the cross section of the longitudinal member at the first end is the same as the cross section at the second end, and the cross section of the longitudinal member is rectangular or circular, the angle β of the transverse member to the outer circumferential surface of the first section (223) of the longitudinal member being in the range of 90 ° < β+.ltoreq.120°. Here, the same cross section includes the same size and shape.

According to a further aspect of the utility model, the cross section of the transverse member may be rectangular, for example square, the longitudinal member having a first section extending from the first end towards its middle position and a second section diverging from the middle position towards the second end, wherein the first section has a constant cross section and the cross section of the longitudinal member is rectangular or circular, the angle γ of the transverse member to the outer circumferential surface of the second section of the longitudinal member being in the range 70 +.gamma < 90 °.

According to a preferred embodiment of the utility model, the transverse member may be a cylinder having a constant cross section, the longitudinal member comprising a first and a second slat fixedly connected to the transverse member, and at least one third slat arranged between the first and the second slat, wherein the free ends of the first and the second slat are flush, the first end of the third slat being spaced apart from the transverse member by a distance, and the second end of the third slat being flush with the free ends of the first and the second slat. Here, the first and second strips are preferably the same size and shape, and the third strip thickness and width may be the same as or different from the first and second strips. In this solution, the longitudinal parts are configured in such a way that, in particular in the case of a wood material, they can better block the thermal bridge, increasing the content of insulating material to further increase the thermal insulation.

According to another preferred embodiment of the utility model, the transverse member may be a cylinder with a constant cross section, and the longitudinal member may comprise a first slat fixedly connected to the transverse member, a second slat, at least two third slats arranged between the first slat and the second slat, and a transverse slat connected to the third slat, wherein the free ends of the first slat and the second slat are flush, the first end of the third slat is spaced from the transverse member by a distance, and the second end of the third slat extends beyond the free ends of the first slat and the free end of the second slat and is connected to the transverse slat. Here, the first and second strips are preferably the same size and shape, and the third strip thickness and width may be the same as or different from the first and second strips. In this solution, the use of a plurality of intermediate planks can increase the strength of the composite runner,

in the present utility model, the substrate is preferably made of wood, the heat insulating layer is preferably made of a closed-cell polyurethane material, and the volume ratio of the polyurethane material to the wood is 3:1 to 1:3.

According to a preferred embodiment of the present utility model, the surface of the substrate made of wood may be provided with grooves or textures to increase the contact area of the substrate with the polyurethane material and to increase the adhesion of the polyurethane material. Also, in the composite keel according to the utility model, the thickness of the insulation layer may be uniform. However, depending on the shape of the base body, in particular the longitudinal parts, the thickness of the insulating layer may also be non-uniform.

According to a preferred embodiment of the utility model, the transverse element is completely covered by the insulation layer, while the second end of the longitudinal element is exposed, i.e. the insulation layer has an insulation layer end face at the second end of the longitudinal element, which end face is flush with or extends beyond the insulation layer end face. The incomplete cladding of the second end of the longitudinal member allows for easier positioning of the T-runner and easier connection with the wood runner.

The utility model also provides a thermal insulation structure, which comprises: at least one composite keel fixedly connected to the wall; a heat insulating layer applied to the wall; profiled steel sheet; and at least one transverse keel arranged between the heat insulation layer and the profiled steel sheet; wherein the transverse keels rest on the second ends of the longitudinal members of the T-shaped composite keels and are fixedly connected with the second ends and the profiled steel sheets, respectively.

According to a preferred embodiment of the utility model, the insulation structure further comprises a waterproof vapour barrier applied between the wall and the insulation layer, the insulation layer comprising a first insulation layer and a second insulation layer and an anti-crack steel wire mesh arranged between the first insulation layer and the second insulation layer.

According to one aspect of the present utility model, the waterproof vapor barrier is preferably formed of a polyurethane material and has a thickness of 0.5mm to 3mm; the heat-insulating layer is preferably formed of polyurethane material and has a thickness of 5mm to 200mm; the transverse keels are preferably wood keels. The cost of using wood joists is relatively low and the thermal insulation effect is not substantially affected even if a thermal bridge is formed in this location.

According to an aspect of the present utility model, there are provided a plurality of lateral keels arranged at equal intervals in a height direction of the wall body, and a plurality of the composite keels are arranged at equal intervals in a length direction of each of the lateral keels, wherein a spacing between two adjacent lateral keels is, for example, 1.2m to 1.8m, and a spacing between two adjacent composite keels is, for example, 1m to 1.5m.

In the composite keel, the excellent low heat conduction materials such as closed-cell foaming materials or aerogel are adopted to replace wood or metal materials, and the composite keel is applied to building components, so that the effects of blocking heat conduction, preserving heat, insulating heat and sealing air can be achieved efficiently. While the thermal conductivity of conventional wood keels is, for example, 0.08W/m.k, the thermal conductivity of composite keels according to the present utility model may be reduced to 0.01-0.06W/m.k, for example, 0.03W/m.k. And under the condition of adopting a closed-cell foaming material, the special-shaped composite keel can be conveniently manufactured.

Drawings

The accompanying drawings, which are included to provide a further understanding of the utility model and are incorporated in and constitute a part of this specification, illustrate embodiments of the utility model and together with the description serve to explain the utility model. In the drawings:

figure 1 is a perspective view of a first embodiment of a T-shaped composite keel according to the utility model;

figure 2a is a cross-sectional view of the T-composite keel of figure 1;

figure 2b shows a cross section of one embodiment of the longitudinal component of the T-shaped composite keel;

figure 3 is a cross-sectional view of a second embodiment of a T-composite keel according to the utility model;

figure 4 is a cross-sectional view of a third embodiment of a T-composite keel according to the utility model;

figure 5 is a cross-sectional view of a fourth embodiment of a T-composite keel according to the utility model;

figure 6 is a cross-sectional view of a fifth embodiment of a T-composite keel according to the utility model;

figure 7 is a cross-sectional view of a sixth embodiment of a T-composite keel according to the utility model;

figure 8 is a cross-sectional view of a seventh embodiment of a T-composite keel according to the utility model;

figure 9 is a cross-sectional view of an eighth embodiment of a T-composite keel according to the utility model;

FIG. 10 is a cross-sectional view of one embodiment of a thermal insulation structure according to the present utility model;

FIG. 11 is a cross-sectional view of another embodiment of a thermal insulation structure according to the present utility model;

fig. 12 shows the arrangement of the transverse wood keels and T-shaped composite keels in the insulation structure according to the utility model; and

fig. 13 shows a configuration of profiled steel sheets and transverse wooden keels and T-shaped composite keels in the insulation structure according to the utility model.

Detailed Description

A T-shaped composite keel and insulation structure incorporating the same implemented in accordance with the present utility model will now be described, by way of example, with reference to the accompanying drawings. In the following description, numerous specific details are set forth in order to provide a thorough understanding of the present utility model to those skilled in the art. It will be apparent, however, to one skilled in the art that the present utility model may be practiced without some of these specific details. Furthermore, it should be understood that the utility model is not limited to specific described embodiments. Rather, the utility model can be considered to be implemented with any combination of the following features and elements, whether or not they relate to different embodiments.

Figures 1 and 2a are perspective and cross-sectional views, respectively, of a first embodiment of a T-shaped composite keel according to the utility model. In this embodiment, the T-shaped composite runner 1 comprises a T-shaped base body 2 made of wood and an insulating layer 3 coated on the outside of the T-shaped base body 2. The T-shaped basic body 2 comprises a transverse part 21 and a longitudinal part 22. The longitudinal member is perpendicular to the transverse member and has a first end 221 and a second end 222, the first end 221 of the longitudinal member being fixedly connected to an intermediate position of the transverse member 21. In the embodiment shown, the insulation layer 3 does not completely cover the second end 222 of the longitudinal part, the insulation layer 3 having an insulation layer end face 30 at the second end 222 of the longitudinal part, the end face 2220 of the second end extending approximately 0-2 cm beyond the insulation layer end face 30. It should be understood that it is also within the scope of the present utility model for the insulation layer end face to be flush with or completely encase the second end face.

In this embodiment, the transverse and longitudinal members may have the same cross-section (both size and shape), e.g. both square. The length of the transverse member may for example be 100mm-300mm, preferably 150mm-250mm. The length of the longitudinal parts may for example be 100mm-300mm, preferably 150mm-250mm. The side length of the square cross section may be, for example, 20mm-60mm, such as 30mm-40mm.

In this embodiment, the outer surface of the wooden substrate is textured. The insulation layer is preferably made of a closed cell polyurethane material (PU) and the thickness of the insulation layer is preferably substantially uniform. The volume ratio of the polyurethane material to the wood is 3:1 to 1:3, for example 1:1. Alternatively, the substrate may also be made of metal, such as steel, in which case the volume ratio of polyurethane material to steel is preferably 10:1-1:1. It should be understood that the insulation layer may be made of other closed cell foam materials such as polystyrene foam (EPS), polystyrene resin (XPS), etc. or aerogel, in addition to the closed cell polyurethane material.

In the above embodiment, the longitudinal member 22 may also be replaced with a trapezoidal cross section, as shown in figure 2b, because the T-shaped composite keel is generally horizontally disposed when in use, and thus is primarily under force, with a trapezoidal cross section, capable of withstanding greater forces and having greater structural strength.

Figure 3 shows a cross-sectional view of a second embodiment of a T-shaped composite keel according to the utility model. Similar to the first embodiment, in this embodiment, the T-shaped composite runner 1 includes a T-shaped base body 2 made of wood and an insulating layer 3 coated on the outside of the T-shaped base body 2. The T-shaped basic body 2 comprises a transverse part 21 having a first length and a longitudinal part 22 having a second length. The longitudinal member is perpendicular to the transverse member and has a first end 221 and a second end 222, the first end 221 of the longitudinal member being fixedly connected to an intermediate position of the transverse member 21. A plurality of first through holes 210 distributed along the first length are provided in the cross member. A plurality of second through holes 220 are provided in the longitudinal member distributed along the second length. The insulation layer 3 does not completely cover the second end 222 of the longitudinal member, the insulation layer 3 having an insulation layer end face 30 at the second end 222 of the longitudinal member, the end face 2220 of the second end extending approximately 0-2 cm beyond the insulation layer end face 30. Here, in order to reduce stress concentration, the shape of the through holes 210, 220 is preferably circular as shown in the drawing. However, other suitable shapes such as square, oval are also contemplated as falling within the scope of the present utility model. And although the spacing between the through holes is shown as being the same, it is contemplated that the spacing between the through holes may be different, as long as the spacing is selected so as not to compromise the structural strength of the wooden substrate. In this embodiment, the dimensions, shape of the transverse and longitudinal members and the material of the insulating layer and its volume ratio to wood may be substantially the same as in the first embodiment, and will not be described again here.

Figure 4 shows a cross-sectional view of a third embodiment of a T-shaped composite keel according to the utility model. This third embodiment is substantially identical to the T-shaped composite keel of the second embodiment in that it differs only in the arrangement of the plurality of through holes in the transverse and longitudinal members 21, 22. As shown, two rows of first through holes 210 are provided in the cross member 21, the first and second rows of first through holes being staggered at equal intervals along the first length of the cross member. Two rows of second through holes 220 are provided in the longitudinal member 22, the first row of second through holes and the second row of second through holes being staggered at equal intervals along the second length of the longitudinal member.

Figure 5 is a cross-sectional view of a fourth embodiment of a T-composite keel according to the utility model. This fourth embodiment is substantially identical to the T-shaped composite keel of the first embodiment in construction, differing only in the construction and arrangement of the longitudinal members. In this embodiment, the cross section of the transverse member 21 is rectangular, e.g. square, and the cross section of the longitudinal member 22 may be rectangular, circular or trapezoidal. The cross section of the longitudinal member is gradually increasing from its first end 221 to its second end 222, i.e. the longitudinal member 22 gradually diverges from its first end towards its second end 222, and the angle α of the transverse member to the outer circumferential surface of the longitudinal member ranges from 70 ° +.alpha. < 90 °, for example 80 °. In this embodiment, the longitudinal centerline (not shown) of the longitudinal member 22 is perpendicular to the transverse member 21.

Figure 6 is a cross-sectional view of a fifth embodiment of a T-composite keel according to the utility model. This fifth embodiment is substantially identical to the construction of the T-shaped composite keel of the first embodiment, except for the construction and arrangement of the longitudinal members. In this embodiment the cross-section of the cross-member 21 is rectangular, for example square. As shown, the longitudinal member 22 has a first section 223 tapering from its first end 221 towards its intermediate position and a second section 224 tapering from the intermediate position towards the second end 222, the longitudinal member having the same cross-section at the first end as at the second end, which cross-section may be rectangular, e.g. square or circular. The angle beta of the transverse member to the outer circumferential surface of the first section 223 of the longitudinal member ranges from 90 deg. < beta +.120 deg., for example 100 deg.. In this embodiment, the longitudinal centerline (not shown) of the longitudinal member 22 is perpendicular to the transverse member 21. Here, the same cross section means the same shape and size.

Figure 7 is a cross-sectional view of a sixth embodiment of a T-composite keel according to the utility model. This sixth embodiment is substantially identical to the T-shaped composite keel of the first embodiment in that it differs only in the construction and arrangement of the longitudinal members. In this embodiment the cross-section of the cross-member 21 is rectangular, for example square. As shown, the longitudinal member 22 has a first section 223 extending from the first end 221 toward a neutral position thereof and a second section 224 diverging from the neutral position toward the second end. The first section 223 has a constant rectangular or circular cross-section and the second section is correspondingly rectangular or circular in cross-section. The angle gamma of the transverse member to the outer circumferential surface of the second section 224 of the longitudinal member ranges from 70 deg.. Ltoreq.gamma < 90 deg., for example 80 deg..

In the above embodiment, in practical application, when the transverse member and the longitudinal member are made of wood, in order to avoid heat conduction, metal connectors such as nails are used as little as possible, and thus, the transverse member and the longitudinal member may be connected by mortise and tenon joints, and mortise and tenon joints may be used by round tenons, kidney tenons, square tenons, or the like.

Figure 8 is a cross-sectional view of a seventh embodiment of a T-composite keel according to the utility model. This seventh embodiment is substantially identical to the T-shaped composite keel of the first embodiment in construction, differing only in the construction and arrangement of the longitudinal members. In this embodiment, the base body 2 is made of wood and the cross-member 21 is a cylinder having a constant rectangular, e.g. square, cross-section. As shown, the longitudinal member 22 is perpendicular to the transverse member 21 and fixedly connected to the middle position thereof, wherein the longitudinal member 22 comprises a first slat 4 and a second slat 5 fixedly connected to the transverse member 21, and a third slat 6 arranged between the first slat 4 and the second slat 5. The free ends of the first and second slats are flush, the first end 61 of the third slat is spaced from the cross member by a distance, and the second end 62 of the third slat is flush with the free ends of the first and second slats. Here, the first and second slats 4 and 5 are preferably rectangular slats of the same size, including length, width and thickness. Although the number of third strips is shown as one, other suitable numbers, such as two or more, may be selected depending on the size of the T-shaped composite keel and the desired support strength. The longitudinal component configured in this way can better block the heat bridge, and increase the content of the heat insulating layer material so as to further improve the heat insulating property.

Figure 9 is a cross-sectional view of an eighth embodiment of a T-composite keel according to the utility model. This eighth embodiment is substantially identical to the construction of the T-shaped composite keel of the seventh embodiment except for the construction and arrangement of the longitudinal members. In this embodiment, the base body 2 is made of wood and the cross-member 21 is a cylinder having a constant rectangular, e.g. square, cross-section. As shown, the longitudinal member 22 is perpendicular to the transverse member 21 and fixedly connected to its intermediate position, said longitudinal member 22 comprising a first slat 4 fixedly connected to the transverse member 21, a second slat 5, two third slats 6 arranged between the first slat 4 and the second slat 5, and a transverse slat 7 connected to the third slats. The free ends of the first and second slats are flush, the first end 61 of the third slat being spaced apart from the transverse member by a distance, the second end 62 of the third slat extending beyond the free ends of the first and second slats and being connected to the transverse slat 7. Here, the first and second slats 4 and 5 are preferably rectangular slats of the same size, including length, width and thickness. Although the number of third strips is shown as two, other suitable numbers may be selected depending on the size of the T-shaped composite keel and the desired support strength. The longitudinal component configured in this way not only ensures that the T-shaped composite keel has better structural strength, but also can better block a heat bridge and increase the content of the heat insulation layer material so as to further improve the heat insulation property.

Fig. 10 is a side cross-sectional view of one embodiment of a thermal insulation structure according to the present utility model. In this embodiment, it can be seen from the figures that the insulation structure 100 comprises a T-shaped composite runner 1 fixedly attached to a wall 10 by means of fasteners, such as screws, wherein the cross members 21 of the T-shaped composite runner 1 abut the surface of said wall 10. The insulation structure further comprises an insulation layer 11 applied to the surface of the wall body 10, and profiled steel sheets 12 arranged outside the insulation layer 11 and the T-shaped composite joist 1, and a transverse wood joist 13 arranged between the profiled steel sheets and the insulation layer 11 and positioned on the second end 222 of the longitudinal member 22 of the T-shaped composite joist 1. As can be seen from the figure, the second end 222 of the longitudinal part 22 extends outwards beyond the insulation 11, the transverse wood joist 13 resting on the upper side of the second end and being fixedly connected thereto by means of e.g. fasteners, and the profiled steel sheet 12 being fixedly connected to the transverse wood joist 13 by means of e.g. threaded fasteners 120. The insulation structure of this configuration is suitable for use in building walls and/or roofs having an internal temperature of from-10 to 20 degrees, and the insulation layer in this insulation structure is preferably formed from a closed cell polyurethane material, and may be of a small thickness, for example from 5mm to 100mm, preferably from 40mm to 70mm.

Fig. 11 is a cross-sectional view of another embodiment of a thermal insulation structure according to the present utility model. In this embodiment, it can be seen from the figures that the insulation structure 100 comprises a waterproof vapor barrier 14 applied to the surface of the wall 10, and a T-shaped composite joist 1 fixedly attached to the wall 10 by means of fasteners, such as screws, wherein the cross members 21 of the T-shaped composite joist 1 abut the surface of said wall 10, in particular the waterproof vapor barrier 14 applied to the wall 10. The insulation structure 100 further comprises a first insulation layer 111 applied to the waterproof vapor barrier 14, a second insulation layer 112, and an anti-crack steel wire mesh 15 disposed between the first insulation layer and the second insulation layer, a profiled steel sheet 12 disposed outside the second insulation layer 112 and the T-shaped composite keel 1, and a transverse wood keel 13 disposed between the profiled steel sheet and the second insulation layer 112 and positioned on the second end 222 of the longitudinal element 22 of the T-shaped composite keel. As can be seen from the figure, the second end 222 of the longitudinal member 22 extends outwardly beyond the second insulation layer 112, the transverse wood joist 13 rests on and is fixedly connected to the second end, and the profiled steel sheet 12 is fixedly connected to the transverse wood joist 13 by means of, for example, threaded fasteners. The heat-insulating structure with the structure is suitable for building walls with the internal temperature of 20-50 ℃ below zero, the thickness of the heat-insulating layer in the heat-insulating structure is required to be large, for example, 100-200 mm, and in order to ensure the structural strength of the heat-insulating layer, the heat-insulating layer can be constructed into two layers, and an anti-cracking steel wire mesh is arranged between the two layers. In this embodiment, the waterproof vapor barrier 14 may be formed of a polyurethane material and have a thickness of 0.5mm to 3mm.

In the above embodiment of the insulation structure, a plurality of transverse wood keels and a plurality of T-shaped composite keels may be provided according to the wall area. For example, in the example shown in fig. 12, two lateral wooden runners 13 may be provided that are spaced apart in the height direction of the wall, and correspondingly, 5T-shaped composite runners 1 are provided at equal intervals in the length direction of each lateral wooden runner 13. It should be understood that the number of transverse wood runners 13 and T-shaped composite runners 1 shown in the figures is merely exemplary and that other suitable numbers of transverse wood runners and T-shaped composite runners are within the scope of the utility model depending on the area of the wall. In this embodiment, the spacing between two adjacent transverse wood keels 13 may be 1.2m to 1.8m, for example 1.5m. The distance between two adjacent T-shaped composite keels 1 along the length direction of the transverse wood keels is 1m to 1.5m, such as 1.2m. The above-mentioned numerical values of the intervals are also exemplary, and may be selected according to the size of the profiled steel sheet 12 (see fig. 13).

Compared with the prior art, the T-shaped composite keel and the heat insulation structure comprising the composite keel in the embodiment can avoid generating a heat bridge as much as possible, can effectively block heat conduction, and has the effects of heat insulation, heat insulation and air tightness.

While the utility model has been described in terms of preferred embodiments, the utility model is not so limited. Any person skilled in the art shall not depart from the spirit and scope of the present utility model and shall accordingly fall within the scope of the utility model as defined by the appended claims.

Claims (16)

1. A T-shaped composite keel (1), characterized in that it comprises:

a T-shaped base body (2) made of wood or metal; and

a thermal insulation layer (3) covering the substrate (2), wherein the thermal insulation layer is made of a closed cell foam material or aerogel,

wherein the basic body (2) comprises a transverse member (21) and a longitudinal member (22) having a first end (221) and a second end (222), the first end of the longitudinal member being fixedly connected to an intermediate position of the transverse member.

2. The T-shaped composite keel (1) according to claim 1, wherein said transverse member (21) is a cylinder having a constant cross section and said longitudinal member (22) is a cylinder.

3. A T-shaped composite keel (1) according to claim 2, wherein said transverse member (21) is rectangular in cross section and said longitudinal member (22) has a constant rectangular or trapezoidal cross section.

4. A T-shaped composite keel (1) according to claim 3, wherein said cross member (21) has a first length, in which a plurality of first holes (210) are provided distributed along the first length; the longitudinal member (22) has a second length, and a plurality of second apertures (220) are disposed in the longitudinal member along the second length.

5. A T-shaped composite keel (1) according to claim 2, wherein said transverse member (21) is rectangular in cross-section, said longitudinal member (22) diverging from said first end (221) toward said second end (222), the longitudinal member (22) has a rectangular or circular cross section, and the angle alpha between the transverse member and the outer peripheral surface of the longitudinal member is in the range of 70 DEG-alpha < 90 deg.

6. T-shaped composite keel (1) according to claim 2, wherein the cross-section of the transverse element (21) is rectangular, the longitudinal element (22) has a first section (223) tapering from the first end (221) towards its middle and a second section (224) diverging from the middle towards the second end (222), the cross-section of the longitudinal element at the first end (221) and at the second end (222) being the same, and the cross-section is rectangular or circular, the angle β of the transverse element with the outer circumferential surface of the first section (223) of the longitudinal element ranging from 90 ° < β+.ltoreq.120 °.

7. T-shaped composite keel (1) according to claim 2, wherein said transverse member (21) is rectangular in cross-section, said longitudinal member (22) having a first section (223) extending from said first end (221) towards its middle and a second section (224) diverging from said middle towards said second end, wherein the first section (223) has a constant cross section and the cross section of the longitudinal part (22) is rectangular or circular, the angle gamma of the transverse part to the outer circumferential surface of the second section (224) of the longitudinal part being in the range of 70 DEG.ltoreq.gamma < 90 deg.

8. T-shaped composite keel (1) according to claim 1, wherein said transverse member (21) is a cylinder with a constant cross section, said longitudinal member (22) comprising a first (4) and a second (5) slat fixedly connected to the transverse member (21), and at least one third slat (6) arranged between the first (4) and the second (5) slat, wherein the free ends of the first and the second slat are flush, the first end (61) of the third slat being spaced apart from the transverse member by a distance, the second end (62) of the third slat being flush with the free ends of the first and the second slat.

9. T-shaped composite keel (1) according to claim 1, wherein said transverse member (21) is a cylinder with a constant cross section, said longitudinal member (22) comprising a first slat (4) fixedly connected to the transverse member (21), a second slat (5), at least two third slats (6) arranged between the first slat (4) and the second slat (5) and a transverse slat (7) connected to said third slat, wherein the free ends of the first slat and the free ends of the second slat are flush, the first end (61) of the third slat being spaced apart from the transverse member by a distance, the second end (62) of the third slat extending beyond the free ends of the first slat and the free ends of the second slat and being connected to the transverse slat (7).

10. T-shaped composite keel (1) according to any of the claims 1 to 9, wherein said matrix (2) is made of wood, said insulating layer (3) is made of a closed-cell polyurethane material and the volume ratio of polyurethane material to wood is 3:1-1:3.

11. The T-composite runner (1) of claim 10 wherein the outer surface of the base (2) is grooved or textured and the thickness of the insulating layer (3) is uniform throughout the T-composite runner.

12. The T-composite keel (1) according to any of the claims 1 to 9, wherein said insulation layer (3) has an insulation layer end face (30) at the second end (222) of the longitudinal element, the end face (2220) of the second end being flush with or extending beyond the insulation layer end face (30).

13. A thermal insulation structure (100), characterized by comprising:

-at least one T-shaped composite keel (1) according to any of claims 1 to 12 fixedly connected to a wall (10);

an insulating layer (11) applied to the wall (10);

a profiled steel sheet (12); and

at least one transverse keel (13) arranged between the heat insulation layer (11) and the profiled steel sheet (12);

wherein the transverse keels (13) rest on the second ends (222) of the longitudinal members (22) of the T-shaped composite keels and are fixedly connected to the second ends (222) and the profiled steel sheets (12), respectively.

14. The insulation structure (100) of claim 13, further comprising a waterproof vapor barrier (14) applied between the wall (10) and the insulation layer (11), the insulation layer (11) comprising a first insulation layer (111) and a second insulation layer (112) and an anti-crack steel mesh (15) disposed between the first insulation layer and the second insulation layer.

15. The insulation structure (100) according to claim 14, characterized in that the waterproof vapor barrier (14) is formed of polyurethane material and has a thickness of 0.5mm to 3mm; the heat preservation layer (11) is made of polyurethane material and has a thickness of 5 mm-200 mm; the transverse keels (13) are wood keels.

16. The insulation structure (100) according to any one of claims 13 to 15, wherein the at least one transverse runner (13) is a plurality of the transverse runners (13) arranged at equal intervals in a height direction of the wall body, and a plurality of the T-shaped composite runners (1) are arranged at equal intervals in a length direction of each of the transverse runners, wherein a spacing between two adjacent transverse runners is 1.2m to 1.8m, and a spacing between two adjacent T-shaped composite runners is 1m to 1.5m in the length direction of the transverse runners.