CN204311582U - A kind of assembling type outer wall outer heat preservation system - Google Patents

Abstract

The utility model relates to an assembled external wall thermal insulation system, which belongs to the field of external thermal insulation of building external walls. An assembled external wall thermal insulation system mainly includes: thermal insulation material, support, keel, wedge gasket, heat insulation pad, panel clip and external wall panel. The thermal insulation material is connected to the wall, the support is fixed on the wall and connected to the keel, and the panel clip is used to support the outer wall panel and connected to the keel. In the utility model, the thermal insulation material filling method in the external wall thermal insulation system is not affected by the negative wind pressure. The system can be adjusted in three dimensions, front and rear, left and right, up and down, so as to ensure the installation position and flatness of the panels. The on-site installation method can improve the on-site construction efficiency and shorten the construction period.

Description

A prefabricated external wall thermal insulation system

technical field

The utility model relates to an assembled external wall thermal insulation system, which is applied in the field of external thermal insulation of building external walls, and is beneficial to the industrialized production of materials and on-site installation operation.

Background technique

Building insulation is required by my country's Energy Conservation Law. External wall insulation has the advantages of no thermal bridge, good insulation effect, and dew point inside the wall. It is a commonly used insulation method. Thin plastering external wall insulation system is the most commonly used construction method: use adhesive to paste the insulation material on the wall (supplemented by anchor bolts), and then construct the plastering surface with built-in glass fiber mesh cloth on the insulation material Layer, and finally paint (finish layer) construction to complete the system composition.

In view of the large amount of on-site plastering and wet work of the external thermal insulation system of the thin plastered exterior wall, an integrated thermal insulation system for thermal insulation and decoration has been developed. Construction of surface and finish layers. The thermal insulation and decoration integrated board is fixed by pasting (supplemented by mechanical fixing such as anchor bolts), or mechanically fixed by back bolt method.

In the heat preservation and decoration integrated heat preservation system through the pasting method, the heat preservation material is in a stressed state, so there is a high requirement for the strength of the heat preservation material, which limits the use of some light weight but low strength heat preservation materials. This method is still a wet operation, which requires high on-site skills and produces mortar waste. The back bolt method is to install metal parts on the back of the panel, and then connect the metal parts of the back bolt through the pendant to support the thermal insulation and decoration integrated board. This requires the panel to have sufficient strength to support the entire system and enough thickness to install the back bolt.

Utility model content

In order to solve the deficiencies in the existing external wall thermal insulation system, the purpose of the utility model is to provide an assembled external wall thermal insulation system.

The purpose of this utility model is achieved by the following technical solutions:

An assembled external wall thermal insulation system, comprising: the support is an "L" shaped metal part, and the fixed side of the support is fixed on the wall.

The keel is an "L" shaped metal piece, the connecting side of the support is connected to the connecting side of the keel, and the supporting side of the keel is connected to the panel clip.

The insulation material is fixed on the wall by anchor bolts.

The exterior wall panel is a decorative plate used for the building envelope. The upper and lower opposite sides of the exterior wall panel have grooves. The panels are supported and connected by panel clips, and are located outside the exterior wall. The outermost part of the insulation system.

The exterior wall panels are preferably calcium silicate boards, cement fiber boards or ceramic boards, products that can resist the outdoor atmospheric environment, including water resistance, aging resistance, weather resistance, and sufficient strength;

The finish of the exterior wall panel is paint and finish mortar; the paint includes flat paint, fluorocarbon paint imitating the effect of aluminum-plastic panels, real stone paint, stone-like paint and printed finish.

The groove of the outer wall panel can be full length, and the corresponding panel fastener should also be full length; the groove can be partially recessed, and the corresponding panel fastener should also be partially convex.

The depth and length of the groove are determined according to its bearing capacity.

The panel fasteners are "ㄣ" shaped metal parts, and the upper and lower two relative "ㄣ" shaped panel fasteners form a pair of interdigitated panel fasteners, which intersect to form a "ji" shape.

One side of the panel fastener with a terminal is a fastener supporting side, which is used to support the outer wall panel; the other side of the panel fastener with a terminal is a fastener connection side; the panel fastener The middle side is the transition side of the clip, which is used for the transition of installation; the clip connection side of the interdigitated panel clip is connected to the support side of the keel.

Wherein, the length of the connecting side of the support is greater than the thickness of the thermal insulation material;

The end of the connecting side of the support has a longitudinal slot a perpendicular to the direction of the wall.

Slot a is located at the position beyond the thermal insulation material on the connecting edge of the support. After the thermal insulation material is fixed, the slot at the end of the support leaks out of the surface of the thermal insulation material, so that the keel and panel can be installed thereafter.

The slot a makes the installation of the rear keel realize front and rear adjustment. The width of slot a is determined according to the diameter of the connecting bolt; the length of slot a is determined according to the flatness of the wall. If the flatness of the wall is good, the slot a should be short; if the flatness of the wall is poor, the slot a should be short. Should be long.

The connecting edge of the keel has a long slot b parallel to the direction of the wall (1).

The slot b enables left and right adjustment when the keel is connected and fixed with the support. The width of the slot b is determined according to the diameter of the connecting bolt; the length of the slot is related to the processing quality of the keel and the level of the installer, preferably 2-4 times the diameter of the connecting bolt; the number of the slot b depends on the support connected to the keel The number of seats is designed, and each slot corresponds to each support connected to it.

The specific dimensions of the support, keel and panel clips are determined according to the bearing capacity of the system structure.

Further, the connecting edge of the keel is connected to the connecting edge of the support through the connecting piece d and the heat insulating pad;

Further, the connecting edge of the keel is also connected to the connecting edge of the support through a wedge-shaped gasket;

Wherein, the connecting piece sequentially passes through the slot b of the keel, the wedge-shaped gasket, the heat insulating pad and the slot a of the support.

Among them, the wedge-shaped gasket is used to realize the adjustment of the angle. The diameter of the wedge-shaped washer matches the bolt used in conjunction with it, so that the screw rod of the bolt connecting the support and the keel can pass through the wedge-shaped washer. The inclination of the wedge-shaped gasket is determined according to the inclination during assembly.

The wedge-shaped gasket can be inserted from any angle that is convenient for leveling; when there is no inclination during installation, the wedge-shaped gasket can not be used; the insertion depth of the wedge-shaped gasket can adjust the deviation of the upper and lower heights.

Further, the support, the keel, the panel clip, and the wedge-shaped gasket are processed from metals that are not easy to rust or adopt anti-rust measures, such as stainless steel, hot-dip galvanized steel or aluminum alloy;

Furthermore, the fixed side of the support is fixed on the wall through expansion bolts; depending on the structural bearing capacity of the system, it can be fixed by a single anchor bolt, or by two or more anchor bolts.

Further, the thermal insulation material is thermal insulation material for building walls, specifically molded polystyrene foam (EPS), extruded polystyrene foam (XPS), rigid polyurethane foam, phenolic resin foam Plastic, rock wool, glass wool, foam glass, foam cement, foam ceramics, perlite-based insulation board or rubber powder polystyrene particle insulation board.

Further, the heat insulating pad is made of heat insulating material, and its diameter matches the bolt used with it, so that the screw rod of the bolt connecting the support and the keel can pass through the heat insulating pad.

The thermal insulation material is a material with a guiding thermal coefficient not greater than 0.23W/m.K, and the function of the thermal insulation pad is to form a large thermal bridge without direct contact between the support and the keel. Considering that the thermal insulation pad should have a certain strength, the thermal insulation material is preferably PVC bakelite (thermal conductivity 0.17W/m.K), rubber (thermal conductivity 0.15-0.21W/m.K) or solid polypropylene (thermal conductivity 0.22W/m.K) .

The assembly method of the prefabricated external wall thermal insulation system is as follows:

S1: Use anchor bolts to fix the supports on the wall according to the arrangement.

The number of bearings arranged is related to the load-bearing capacity of the system, and the number is determined according to the calculation and test verification of the building load design code. The support is generally fixed with expansion bolts. In actual engineering, the position of the support is determined by snapping the line on the wall. The support is at least 100mm away from the male corner, too close to the male corner may cause the male corner to crack.

S2: Use anchor bolts for external wall insulation to fix the insulation material on the wall.

The anchor bolt for external wall insulation refers to an anchor bolt with a disc that conforms to "JG/T 366 Anchor bolt for building insulation", and the anchor bolt can be fixed on the wall without falling off.

The system does not use pasting to fix the thermal insulation system, so there is no requirement for the strength of the pasting on the wall surface. This feature is beneficial to existing building energy-saving renovation projects. Because the walls of old buildings will be powdered, aged, and oily, and the bond strength has great uncertainty.

In this system, the insulation material is attached to the wall and does not bear the effect of wind pressure (the wind pressure is independently carried by the panel), so lighter but less strong materials can be used, and the selection range of insulation materials is wider.

S3: Use bolts to fix the keel on the support horizontally through the slot hole of the support and the slot hole of the keel. The sheet is adjusted, and the insulation pad is placed between the support and the keel.

Due to the flatness of the wall, the end of the support cannot be on a plane, and the installation of the panel should be on a plane. In engineering practice, the control line will be arranged, and the front, rear, left and right, and inclination angles of the keel will be adjusted through the slot holes on the support, the slot holes on the keel and wedge-shaped gaskets according to the control line, so as to meet the requirements of levelness and verticality. The bolts fix the support, the heat insulating pad, the wedge gasket and the keel in series.

S4: Use nailing, riveting or screwing to install the panel clips supported under the panel, and then install the exterior wall panel. The supporting edge of the clip is stuck in the groove of the exterior wall panel, and then install the panel clips supported by the upper support. The supporting edge is clamped in the groove of the exterior wall panel, and the "cross finger" shape of the panel clamp is used to adjust the positions of the panel clamp and the exterior wall panel.

Those skilled in the art will understand that usually a pair of panel fasteners are installed on one keel. The panel clips in the shape of "cross fingers" can be stretched and retracted without interfering with each other, so as to facilitate the installation of external wall panels. Only the lower clips need to be installed on the keel at the starting position, and only the lower clips need to be installed on the keel at the end position.

S5: The gaps between panel clips are filled with weather-resistant sealant; the vertical joints of exterior wall panels are filled with foam rods and then filled with weather-resistant sealant.

The purpose of the sealant is to waterproof the outer protective structure, so the sealant must be continuous and compact during construction, and the outdoor sealant used has weather resistance. The sealant construction will form the wall separation joints, the width of these separation joints is reasonable (generally 8mm-15mm), and the appearance is beautiful.

The beneficial effects of the utility model are:

A prefabricated external wall thermal insulation system is proposed based on the concept of industrial production of products and on-site dry construction and installation. The utility model is characterized in that:

(1) The exterior wall panels are independently supported, and the insulation material filling method is no longer affected by negative wind pressure, and negative wind pressure is the main force of materials or components attached to the wall, so lighter materials are allowed to be used .

(2) The system described in the utility model can be adjusted in three dimensions including front and rear, left and right, and up and down, so as to ensure the installation position and flatness of the exterior wall panels, which are the basic requirements for wall construction.

(3) The "cross finger" clip is used, which is not only convenient for the adjustment of the installation of the outer wall panels, but also can change the gap between the outer wall panels at will, which is convenient for the installation of the outer wall panels and the change of the decorative joints.

(4) The on-site installation method can improve the on-site construction efficiency and shorten the construction period.

Description of drawings

Fig. 1 is a schematic diagram of the local structure of the external wall thermal insulation system described in the utility model;

Figure 2 is a partial enlarged schematic view of Figure 1;

Fig. 3 is a schematic diagram of the structure of the support described in the utility model;

Fig. 4 is the schematic diagram of the keel structure described in the utility model;

Fig. 5 is the structural representation of the wedge-shaped gasket described in the utility model;

Fig. 6 is a structural schematic diagram of the panel clip described in the present invention;

Fig. 7 is a schematic diagram of the interdigitated structure of the panel fastener described in the present invention;

Fig. 8 is a schematic diagram of the connection between the outer wall panel and the panel fastener with the groove being a full length;

Fig. 9 is a schematic diagram of the connection between the outer wall panel and the panel clip with the groove partially recessed.

Among them, 1-wall, 2-insulation material, 3-connector c, 4-support, 5-keel, 6-connector d, 7-wedge gasket, 8-insulation pad, 9-connector e, 10-panel clip, 11-external wall panel, 12-anchor bolt, 13-fixed side of the support, 14-connecting side of the support, 15-slot a, 16-supporting side of the clip, 17-transitional side of the clip , 18-card connecting edge, 19-slot b.

Detailed ways

In order to make the purpose, technical solution and advantages of the utility model clearer, the utility model will be further described in detail below in conjunction with the accompanying drawings and embodiments. However, the examples given are not intended to limit the utility model.

An assembled external wall thermal insulation system, as shown in Figures 1 and 2, including: as shown in Figure 3, the support 4 is an "L"-shaped metal part, and the fixed side of the support 4 is fixed by the connecting piece c3 On the wall 1, the connecting side of the support 4 is connected to the keel 5, and the length of the connecting side of the support 4 is greater than the thickness of the thermal insulation material 2. The end of the connecting side of the support 4 has a longitudinal slot a15 perpendicular to the direction of the wall 1 .

The slotted hole a15 is positioned at the position beyond the thermal insulation material 2 on the connecting edge of the support 4, after the thermal insulation material 2 is fixed, the end of the support 4 leaks out of the surface of the thermal insulation material 2, so that the keel 5 and the panel 11 can be installed thereafter.

The slot a15 enables the installation of the rear keel 5 to be adjusted back and forth. The width of the slot a15 is determined according to the diameter of the connecting bolt; the length of the slot a15 is determined according to the flatness of the wall 1. If the flatness of the wall 1 is good, the slot a15 should be short; if the flatness of the wall 1 is poor, then The slot a15 should be long.

The thermal insulation material 2 is fixed on the wall through anchor bolts 12 .

As shown in FIG. 4 , the keel 5 is an "L"-shaped metal piece, the connecting side of the keel 5 has a long slot b19 parallel to the direction of the wall 1 , and the supporting side of the keel 5 is connected to the panel clip 10 .

The slot b19 enables left and right adjustment when the keel 5 is connected and fixed with the support 4 . The width of the slot b19 is determined according to the diameter of the connecting bolt; the length of the slot is related to the processing quality of the keel 5 and the level of the installer, preferably 2-4 times the diameter of the connecting bolt; the number of the slot b19 depends on the connection with the keel 5 The number of bearings 4 is designed, and each slot corresponds to each bearing 4 connected with it.

The exterior wall panel 11 is a decorative plate used for building envelope, the two upper and lower opposite sides of the exterior wall panel 11 have grooves, and the exterior wall panel 11 is supported and connected by the panel clip 10 , located at the outermost side of the external wall thermal insulation system.

The exterior wall panels 11 are preferably calcium silicate boards, cement fiber boards or ceramic boards, products that can resist the outdoor atmospheric environment, including water resistance, aging resistance, weather resistance, and sufficient strength;

The finish of the exterior wall panel 11 is paint and finish mortar; the paint includes flat paint, fluorocarbon paint imitating the effect of aluminum-plastic panels, real stone paint, stone-like paint and printed finishes.

As shown in Figures 8 and 9, the groove of the exterior wall panel 11 can be long, and the corresponding panel clip should also be long; the groove can be partially recessed, and the corresponding panel clip 10 It should also be locally raised.

The depth and length of the groove are determined according to its bearing capacity.

As shown in Figure 6, the panel clip 10 is a "ㄣ"-shaped metal piece, as shown in Figure 7, two upper and lower relative "ㄣ"-shaped panel clips 10 form a pair of interdigitated panel clips 10, Intersect to form a "ji" shape. One edge of the panel fastener 10 with the end is the fastener supporting edge 16, which is used to support the panel; the middle edge of the panel fastener 10 is the fastener transition edge 17, which is used for the transition of installation; the fork The clip connecting edge 18 of the finger panel clip 10 is connected to the supporting edge of the keel 5 .

The specific dimensions of the support 4, the keel 5 and the panel clip 10 are determined according to the bearing capacity of the system structure.

Further, the connecting side of the keel 5 is connected to the connecting side of the support 4 through the connecting piece d6 and the heat insulating pad 8;

Further, the connecting edge of the keel 5 is also connected to the connecting edge of the support 4 through a wedge-shaped gasket 7;

Wherein, the connecting piece d6 passes through the slot b19 of the keel 5 , the wedge washer 7 , the heat insulating pad 8 and the slot a15 of the support 4 in sequence. In this embodiment, bolts are used for the connecting piece d6.

Wherein, as shown in FIG. 5 , the wedge-shaped washer 7 is used to adjust the angle. The diameter of the wedge-shaped washer 7 matches the bolt used in conjunction with it, so that the screw rod of the bolt connecting the support 4 and the keel 5 can pass through the wedge-shaped washer 7 . The inclination of the wedge-shaped gasket 7 is determined according to the inclination during assembly.

The wedge-shaped gasket 7 can be inserted from any angle that is convenient for leveling; when the installation has no inclination, the wedge-shaped gasket 7 can not be used.

Further, the support 4, the keel 5, the panel clip 10, and the wedge-shaped spacer 7 are processed from metals that are not easy to rust or adopt anti-rust measures, such as stainless steel, hot-dip galvanized steel or aluminum alloy.

Further, the fixed side of the support 4 is fixed on the wall 1 through expansion bolts; depending on the structural bearing capacity of the system, it can be fixed by a single anchor bolt, or by two or more anchor bolts.

Further, the thermal insulation material 2 is the thermal insulation material 2 for the building wall 1, specifically molded polystyrene foam (EPS), extruded polystyrene foam (XPS), rigid polyurethane foam, Phenolic resin foam, rock wool, glass wool, foam glass, foam cement, foam ceramics, perlite-based insulation board or rubber powder polystyrene particle insulation board.

Further, the heat-insulating pad 8 is made of heat-insulating material, and its diameter is matched with the bolt used in conjunction with it, so that the screw rod of the bolt connecting the support 4 and the keel 5 can pass through the heat-insulating pad 8 .

The thermal insulation material is a material with a guiding thermal coefficient not greater than 0.23W/m.K. The function of the thermal insulation pad 8 is to form a large thermal bridge without direct contact between the support 4 and the keel 5 . Considering that the thermal insulation pad 8 should have a certain strength, the thermal insulation material is preferably PVC bakelite (thermal conductivity 0.17W/m.K), rubber (thermal conductivity 0.15～0.21W/m.K) or solid polypropylene (thermal conductivity 0.22W/m.K ).

The assembly method of the prefabricated external wall thermal insulation system is as follows:

S1: Use anchor bolts to fix the support 4 on the wall 1 according to the arrangement.

The number of bearings 4 is related to the load bearing capacity of the system, and the number is determined according to the calculation and test verification of the building load design code. The support 4 is generally fixed by expansion bolts. In actual engineering, the position of the support 4 is determined by snapping the thread on the wall. The bearing 4 is at least 100mm away from the male corner, too close to the male corner may cause the male corner to crack.

S2: Fix the thermal insulation material 2 on the wall body 1 by using anchor bolts for external wall thermal insulation.

The anchor bolt for external wall insulation refers to an anchor bolt with a disc that conforms to "JG/T 366 Anchor bolt for building insulation", and the anchor bolt can be fixed on the wall without falling off.

In this system, no pasting method is used to fix the thermal insulation system, so there is no requirement for the pasting strength on the surface of the wall body 1. This feature is beneficial to existing building energy-saving renovation projects. Because the walls of old buildings will be powdered, aged, and oily, and the bond strength has great uncertainty.

In this system, the insulation material 2 is attached to the wall and does not bear the effect of wind pressure (the wind pressure is independently carried by the panel), so lighter but less strong materials can be used, and the selection range of the insulation material 2 is wider.

S3: The keel 5 is laterally fixed on the support 4 by bolts through the slot hole of the support 4 and the slot hole of the keel 5. The slot b and the wedge gasket 7 are adjusted, and the heat insulating pad 8 is placed between the support 4 and the keel 5.

Due to the flatness of the wall, the 4 ends of the support cannot be on a plane, and the installation of the panel should be on a plane. In engineering practice, the control line will be arranged, and according to the control line, the front and rear, left and right, and inclination angles of the keel 5 can be adjusted through the slot a on the support 4, the slot b on the keel 5, and the wedge-shaped gasket 7 to achieve horizontality and verticality. requirements. The bolts fix the support 4, the heat insulating pad 8, the wedge-shaped gasket 7 and the keel 5 in series.

S4: Install the panel clamp 10 supported under the panel by nailing, riveting or screwing, and then install the outer wall panel 11, the supporting edge 16 of the clamp is stuck in the groove of the outer wall panel 11, and then install the upper supporting panel clamp 10, the clip supporting edge 16 is stuck in the groove of the exterior wall panel 11, and the “finger” shape of the panel clip 10 is used to adjust the positions of the panel clip 10 and the exterior wall panel 11.

Wherein, the panel clip is connected with the keel 5 through the connecting piece e9.

Those skilled in the art will understand that, generally, a pair of panel clips 10 are installed on one keel 5 . The panel clips 10 in the shape of "interdigitated fingers" can be stretched without interfering with each other, so as to facilitate the installation of the panel 11 . Only one clip needs to be installed on the keel 5 at the start position and the end position.

S5: The gaps between panel clips 10 are filled with weather-resistant sealant; the vertical joints of exterior wall panels 11 are filled with foam rods and then filled with weather-resistant sealant.

The purpose of the sealant is to waterproof the outer protective structure, so the sealant must be continuous and compact during construction, and the outdoor sealant used has weather resistance. The sealant construction will form the wall separation joints, the width of these separation joints is reasonable (generally 8mm-15mm), and the appearance is beautiful.

The above description of the disclosed embodiments enables those skilled in the art to realize or use the utility model. Various modifications to these embodiments will be readily apparent to those skilled in the art, and the general principles defined herein may be implemented in other embodiments without departing from the spirit or scope of the invention. Therefore, the present invention will not be limited to these embodiments shown herein, but will conform to the widest scope consistent with the principles and novel features disclosed herein.

Claims (9)

1. A prefabricated external wall thermal insulation system, characterized in that it comprises: The support (4) is an "L" shaped metal piece, and the fixed side (13) of the support (4) is fixed on the wall (1); The keel (5) is an "L" shaped metal piece; The connecting edge (14) of the support (4) is connected to the connecting edge of the keel (5); The thermal insulation material (2) is fixed on the wall by anchor bolts (12); An external wall panel (11), the external wall panel (11) is supported and connected by the panel clip (10), and is located at the outermost side of the external wall thermal insulation system; The panel fasteners (10) are "ㄣ" shaped metal parts, and the upper and lower two relative "ㄣ" shaped panel fasteners (10) form a pair of interdigitated panel fasteners (10), which intersect to form a "ji" shape ; The clip supporting edge (16) of the interdigitated panel clip (10) is used to support the outer wall panel (11); the clip connecting edge (18) of the interdigitated panel clip (10) is connected to The supporting edge of the keel (5); Wherein, the end of the connecting side of the support (4) has a longitudinal slot a (15) perpendicular to the direction of the wall (1); The connecting side of the keel (5) has a long slot b (19) parallel to the direction of the wall (1). 2. The external wall thermal insulation system according to claim 1, characterized in that: the connecting side of the keel is connected to the connecting side of the support through a connecting piece d (6) and a thermal insulation pad (8). 3. The external wall thermal insulation system according to claim 2, characterized in that: the connecting edge of the keel is also connected to the connecting edge of the support through a wedge-shaped gasket (7); Wherein, the connecting piece (6) sequentially passes through the slot b (19) of the keel (5), the wedge-shaped gasket (7), the heat insulating pad (8) and the slot a (15) of the support (4) . 4. The external wall thermal insulation system according to claim 3, characterized in that: the support (4), keel (5), panel clip (10) and wedge-shaped gasket (7) are not easy to rust or adopt anti-corrosion Rust measures machined metal. 5. The external wall thermal insulation system according to claim 1, characterized in that: the fixed side of the support (4) is fixed on the wall (1) by expansion bolts. 6. The external wall thermal insulation system according to claim 1, characterized in that: the thermal insulation material (2) is molded polystyrene foam, extruded polystyrene foam, rigid polyurethane foam, phenolic Resin foam, rock wool, glass wool, foam glass, foam cement, foam ceramics, perlite-based insulation board or rubber powder polystyrene particle insulation board. 7. The external wall thermal insulation system according to claim 2, characterized in that: the thermal conductivity of the thermal insulation material of the thermal insulation pad (8) is not greater than 0.23W/m.K. 8. The external wall thermal insulation system according to claim 7, characterized in that: the thermal insulation material is PVC bakelite, rubber or solid polypropylene. 9. The external wall thermal insulation system according to claim 1, characterized in that: the outer wall panel (11) has grooves on the upper and lower opposite sides for connecting with the panel clip (10).