CN216516926U - Rear anchoring external wall insulation structure - Google Patents
Rear anchoring external wall insulation structure Download PDFInfo
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- CN216516926U CN216516926U CN202122659869.5U CN202122659869U CN216516926U CN 216516926 U CN216516926 U CN 216516926U CN 202122659869 U CN202122659869 U CN 202122659869U CN 216516926 U CN216516926 U CN 216516926U
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- insulation structure
- heated board
- wall insulation
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Abstract
The utility model belongs to the technical field of external wall insulation of constructional engineering, and discloses a rear anchoring external wall insulation structure. Meanwhile, the functions of parting, cracking resistance and fixing of the insulation board are realized, the product quality of the insulation structure is improved, and the service life is prolonged.
Description
Technical Field
The utility model relates to a heat insulation structure, in particular to a rear anchoring external wall heat insulation structure, and belongs to the technical field of external wall heat insulation of constructional engineering.
Background
The traditional external wall insulation is a 'rear anchoring and pasting method', namely: firstly, an outer wall structure is made, then the heat-insulating layer is directly fixed by rivets, and then plastering covering is carried out outside the heat-insulating layer, which is commonly called thin plastering.
The existing 'post-anchoring external wall insulation' structural form and construction process at home and abroad:
the structural form is as follows: the full-paved type bonding structure comprises the following components from inside to outside:
the wall structure a: reinforced concrete structures are abundant, and other structures such as brick walls and block walls exist;
pasting mortar b: traditional materials and construction processes;
and c, heat preservation nails: the anchor connecting piece of heated board and wall structure:
wherein, c-1: the heat-insulating nail body is generally a hollow plastic piece, so that a cold bridge is prevented from being formed;
c-2: a cavity for accommodating an expansion nail c-5 to pass through;
c-3: the anchoring head is provided with expandable threads, and c-5 is extruded into the pointed end of the cavity to expand and gradually cling to the side wall of the pre-drilled wall hole to play an anchoring role;
c-4: the disc base has the function of fixing the insulation board;
c-5: the expansion nail is drilled into the cavity c-2 of the heat-preservation nail, enters the anchoring head c-3 and then is extruded to expand, and therefore the anchoring of the heat-preservation nail and the wall body is achieved;
and (3) insulating layer d: the material and specification are processed and customized according to the design requirements, and the traditional process is adopted;
glass fiber net e: the insulation board is bonded, so that gaps of the insulation board are stable and do not expand, and a partial waterproof effect is achieved;
finishing layer f: the traditional process is carried out safely according to design.
The construction process comprises the following steps:
1) drawing a line and positioning;
2) drilling a hole in the wall;
3) plastering mortar;
4) installing heat preservation nails;
5) installing an insulation board;
6) laying a glass fiber net;
7) paving a veneer layer;
the technical defects of the existing structural form and process are as follows:
the anchoring force of the heat preservation nail is insufficient: 1) the heat preservation nail is made of: because the heat preservation nail runs through in this insulation board body, for avoiding producing the cold bridge phenomenon, can only be with the material preparation that material and heated board are close, if: the plastic and the material determine the serious shortage of the anchoring force.
Installing a program: wall body drilling, heated board drilling, insert the heat preservation nail, insert the inflation nail, accomplish in the lump, moreover key pin fin inflation effect operation workman is invisible, belongs to blind operation, and its anchor effect is in doubt.
The anchoring mechanism is as follows: the expansion anchoring is required to be made of hard materials such as steel and the like, and the expansion anchoring can generate stable and firm anchoring force with the wall body, and the heat-insulating nails are made of flexible materials and are not enough to generate stable and firm anchoring force.
Full-spread sticking effect:
the full-spread paste does not crack, and is easy to cause uneven deformation and surface cracking.
The full-paved heat-insulation board is not split, the heat-insulation nail is easy to pull out, once the glass fiber net and the heat-insulation nail are firmly bonded together, the glass fiber net shrinks due to temperature change, the shrinking force is large, the heat-insulation nail can be pulled off, and the reason that the whole piece of the heat-insulation board is easy to fall off at the present stage is also one of the reasons.
Since the end of the last 90 years, China began to popularize the external wall thin-plastering heat preservation technology, the design service life of the technology was 20 years, and the technology has reached or approached the service life in succession. The performance index of the insulation board at this moment is basically perfect, and only the anchoring and bonding system is no longer suitable for continuous work. The building has huge inventory, if an external wall heat preservation system is updated and reworked, the engineering is huge, the resource waste is also caused, and it is an urgent practical need to find a simple, convenient and feasible reinforcement and repair process technology, wherein the reinforcement and repair process technology refers to the following steps: on the premise of not dismantling the original building structure system which reaches the design service life, the new technology and the new process are utilized to carry out modification treatment, so as to reach the new standard or the new design requirement.
SUMMERY OF THE UTILITY MODEL
The utility model aims to provide a rear anchoring external wall insulation structure, which realizes the functions of parting, cracking resistance and fixing of an insulation board, improves the product quality of the insulation structure and prolongs the service life.
In order to solve the above problems, the specific technical scheme of the utility model is as follows: the utility model provides a back anchor external wall insulation structure, outer wall body pass through tie coat and heated board bonding, fixedly connected with locating support between two adjacent heated boards, and locating support is kept away from outer wall body one end parcel in the heated board outside towards outer wall body one end rather than fixed connection, locating support.
The locating support be "nearly" style of calligraphy, including anchor portion, supporting part and spacing portion, supporting part an organic whole is connected at anchor portion both ends, two supporting part parallel arrangement form the support lumen, lie in between two adjacent heated boards from top to bottom, spacing portion lies in the other end of supporting part and is parallel with the tie coat, is equipped with the locating hole in the anchor portion, support anchor nail passes locating hole and outer wall fixed connection.
The spacing between the limiting part and the bonding layer corresponds to the width of the heat-insulation plate.
The outer side of the heat insulation board is paved with a glass fiber net, and the outer side of the glass fiber net is paved with a decorative layer.
The middle cavity of the bracket is filled with a caulking strip.
The positioning support is made of PVC plastic.
The support anchoring nail adopts an expansion bolt or a bar-planting anchor bolt.
The insulation board is laid on the outer side of the insulation board, and the sum of the thicknesses of the insulation board and the insulation board is equal to the length of the supporting part.
The utility model has the following beneficial effects:
1. the anchoring of the external wall heat insulation structure is firmer and does not fall off;
2. the deformation capability of the external wall heat insulation structure is more sufficient, and the external wall heat insulation structure does not crack;
3. the parting lines enable the appearance of the building to be more beautiful;
4. the reinforcing and repairing of the heat-insulating structure of the outer wall of the old building are easier.
Drawings
Fig. 1 is a schematic diagram of a conventional full-paved anchor structure.
Fig. 2 is a schematic structural view of a conventional heat-insulating nail.
FIG. 3 is a schematic structural view of a rear anchoring exterior wall insulation structure.
Fig. 4 is a schematic view of the positioning bracket structure.
FIG. 5 is a schematic structural view of a rear anchoring external wall insulation structure under a larger condition of an insulation board.
Fig. 6 is a schematic structural view of a double-layer insulation board.
Detailed Description
As shown in fig. 3-6, a back anchor external wall insulation structure, including external wall 1, external wall 1 is traditional structure, for concrete or other masonry wall, external wall 1 surface passes through tie coat 2 and heated board 3 bonds, heated board 3 is from supreme laying in proper order down, fixedly connected with locating support 6 between two adjacent heated board 3, locating support 6 plays the parting effect of two adjacent heated board 3, play the support fixed action to heated board 3 simultaneously, heated board 3 lays the back, again lay glass fiber net 4 on heated board 3's surface, finish coat 5 is laid in the glass fiber net 4 outside, accomplish the preparation of external wall insulation system.
Wherein, after the bottom insulation board 3 bonds, place locating support 6 at the up end of this piece of insulation board 3, locating support 6 is "nearly" style of calligraphy, including anchor portion 61, supporting part 62 and spacing portion 63, supporting part 21 a body coupling is at anchor portion 61 both ends, two supporting part 21 parallel arrangement, form support lumen 64, spacing portion 63 is located the other end of supporting part 21 and is parallel with tie coat 2, spacing portion 63 corresponds with the width of insulation board 3 with the interval of tie coat 2, a position for prescribing a limit to insulation board 3, avoid insulation board 3 to take place the position drunkenness in the direction from exterior wall 1 to finish coat 5, be equipped with locating hole 611 on anchor portion 61, in the installation, anchor portion 61 is embedded into in the gap that forms between two adjacent insulation boards 3, support anchor nail 8 passes locating hole 611 and exterior wall 1 fixed connection. The positioning bracket 6 is made of PVC and other plastic materials, and the positioning bracket 6 is used for: 1) the insulation board is limited and is firmly combined with the wall body through anchor nails with conventional structures; 2) the heat-insulating layer is split to avoid deformation and cracking.
The bracket anchoring nail 8 adopts an expansion bolt or a bar planting anchor bolt and the like. The anchor nails are made of high-strength materials, and because the anchor parts 61 of the support anchor nails 8 are contacted, the cavities 64 in the support are filled with sealing heat-insulating materials subsequently, so that the cold bridge phenomenon can not be generated.
The first embodiment is as follows:
when the heat insulation board 3 is laid on the outer wall body 1, the process flow is as follows:
(1) leveling the wall body, drawing lines and positioning: the traditional process;
(2) from bottom to top, install first heated board 3: generally, a first narrow plate starts below an outdoor skirting line, and the fixing mode is a traditional fixing mode;
(3) installing a first insulation board positioning support 6: tightly clinging to the top end of the heat-insulation board 3, enabling the bracket anchoring nail 8 to penetrate through the positioning hole 611 and be fixed with the outer wall body 1, enabling the bracket anchoring nail 8 to adopt an expansion bolt, a chemical anchor bolt or a self-tapping bolt, and so on, and installing the upper heat-insulation boards 3 one by one; when the area of a single insulation board 3 is too large, an insulation nail 8 needs to be driven into the middle of the insulation board 3 to assist in fixing the insulation board 3, and when the area of the insulation board 3 is small, an insulation nail 9 does not need to assist in fixing;
(4) laying a glass fiber net 4: the glass fiber net 4 is laid in a grid mode and bonded, and the end portion of the glass fiber net 4 is required to extend into the middle cavity 64 of the support and is firmly bonded with the supporting portion 62;
(5) installing a caulking strip 7: after the glass fiber net 4 is laid, plugging the plug strip 7 into the bracket middle cavity 64, wherein the plug strip 7 is a PE rod with the width slightly larger than that of the bracket middle cavity 64;
(6) sealing the seam with sealant: fixing the seam plugging strip 7 in the middle cavity 64 of the bracket by using elastic weather-resistant glue after the step 5);
(7) and paving a finishing layer 5.
Example two: when the existing wall is reinforced and repaired, the process flow is as follows:
(1) the original building external wall heat insulation system is checked and identified, and the parts with hollowing, cracking and warping are marked;
(2) drawing a line: according to the design requirement;
(3) cutting a seam: the depth of the cutting seam reaches the structural layer of the wall body, namely: completely cutting off the original insulation board;
(4) and (3) hollowing and reinforcing: meet the hollowing phenomenon, need reinforcement temporarily to avoid work progress part to drop, the mode of reinforcement: fixing the hollow drum with a heat-insulating nail;
(5) installing and positioning the bracket 6: embedding a positioning bracket 6 into the cutting seam, tightly attaching to the top end of the heat-insulating plate 3, enabling bracket anchoring nails 8 to penetrate through the positioning holes 611 and be fixed with the outer wall body 1, adopting expansion bolts, chemical anchor bolts or self-tapping bolts for the bracket anchoring nails 8, and so on, and installing the upper heat-insulating plates 3 one by one; when the area of a single insulation board 3 is too large, an insulation nail 9 needs to be driven into the middle of the insulation board 3 to assist in fixing the insulation board 3, and when the area of the insulation board 3 is small, the insulation nail 8 does not need to assist in fixing; when the thickness of the original heat-insulation plate 3 does not reach the standard, the heat-insulation plate 9 can be paved on the outward side of the original heat-insulation plate 3 again, so that the thickness of the heat-insulation plate meets the requirement, and the sum of the thicknesses of the heat-insulation plate 3 and the heat-insulation plate 9 is equal to the length of the supporting part 62;
(6) laying a glass fiber net 4: the glass fiber net 4 is laid in a grid mode and bonded, and the end portion of the glass fiber net 4 is required to extend into the middle cavity 64 of the support and is firmly bonded with the supporting portion 62;
(7) installing a caulking strip 7: after the glass fiber net 4 is laid, plugging the plug strip 7 into the bracket middle cavity 64, wherein the plug strip 7 is a PE rod with the width slightly larger than that of the bracket middle cavity 64;
(8) sealing the seam with sealant: step 6), fixing the seam plugging strip 7 in the middle cavity 64 of the bracket by using elastic weather-resistant glue;
(9) and paving a finishing layer 5.
What has been described above is merely a preferred embodiment of the utility model. It should be noted that variations and modifications can be made by those skilled in the art without departing from the principle of the present invention, and they should also be considered as falling within the scope of the present invention.
Claims (8)
1. The utility model provides a back anchor outer wall insulation construction which characterized in that: outer wall body (1) bonds through tie coat (2) and heated board (3), fixedly connected with locating support (6) between two adjacent heated board (3), and locating support (6) keep away from outer wall body (1) one end parcel in heated board (3) outside towards outer wall body (1) one end rather than fixed connection, locating support (6).
2. The rear anchoring exterior wall insulation structure of claim 1, wherein: positioning support (6) be "nearly" style of calligraphy, including anchor portion (61), supporting part (62) and spacing portion (63), supporting part (62) body coupling is at anchor portion (61) both ends, two supporting part (62) parallel arrangement, form support lumen (64), be located between two adjacent heated board (3) from top to bottom, spacing portion (63) are located the other end of supporting part (21) and are parallel with tie coat (2), be equipped with locating hole (611) on anchor portion (61), support anchor nail (8) pass locating hole (611) and outer wall body (1) fixed connection.
3. The rear anchoring exterior wall insulation structure of claim 2, wherein: the spacing between the limiting part (63) and the bonding layer (2) corresponds to the width of the heat-insulation board (3).
4. The rear anchoring exterior wall insulation structure of claim 1, wherein: the glass fiber net (4) is paved on the outer side of the heat insulation board (3), and the finishing coat (5) is paved on the outer side of the glass fiber net (4).
5. The rear anchoring exterior wall insulation structure of claim 2, wherein: the middle cavity (64) of the bracket is filled with a caulking strip (7).
6. The rear anchoring exterior wall insulation structure of claim 1, wherein: the positioning support (6) is made of PVC plastic.
7. The rear anchoring exterior wall insulation structure of claim 2, wherein: the bracket anchoring nail (8) adopts an expansion bolt or a bar-planting anchor bolt.
8. The rear anchoring exterior wall insulation structure of claim 1, wherein: heated board (9) are laid to heated board (3) outside, and the thickness sum of heated board (3) and heated board (9) equals the length of supporting part (62).
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202122659869.5U CN216516926U (en) | 2021-11-02 | 2021-11-02 | Rear anchoring external wall insulation structure |
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| Application Number | Priority Date | Filing Date | Title |
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| CN202122659869.5U CN216516926U (en) | 2021-11-02 | 2021-11-02 | Rear anchoring external wall insulation structure |
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| CN216516926U true CN216516926U (en) | 2022-05-13 |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113898177A (en) * | 2021-11-02 | 2022-01-07 | 锦州市好为尔保温材料有限公司 | Rear anchoring external wall heat insulation structure and construction process |
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2021
- 2021-11-02 CN CN202122659869.5U patent/CN216516926U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113898177A (en) * | 2021-11-02 | 2022-01-07 | 锦州市好为尔保温材料有限公司 | Rear anchoring external wall heat insulation structure and construction process |
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Effective date of registration: 20221207 Address after: 121000 Panghe Industrial Park, Heishan County, Jinzhou City, Liaoning Province Patentee after: Li Mei Address before: 121400 panghe Industrial Park, Heishan County, Jinzhou City, Liaoning Province Patentee before: JINZHOU HOWAR INSULATION MATERIAL Co.,Ltd. |