CN213358979U - Prefabricated outer wall concatenation seam drainage structures of assembled concrete building - Google Patents
Prefabricated outer wall concatenation seam drainage structures of assembled concrete building Download PDFInfo
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- CN213358979U CN213358979U CN202021181423.5U CN202021181423U CN213358979U CN 213358979 U CN213358979 U CN 213358979U CN 202021181423 U CN202021181423 U CN 202021181423U CN 213358979 U CN213358979 U CN 213358979U
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Abstract
The patent of the utility model relates to a construction, concretely relates to prefabricated outer wall concatenation seam drainage structures of assembled concrete building, include: the first foam strip is arranged in the prefabricated outer wall joint; the first adhesive sealing layer is longitudinally arranged on the outer side of the first foam strip; the drain pipe penetrates through the first adhesive sealing layer and is fixed by the first adhesive sealing layer; the second foam strip is arranged below the drain pipe and is parallel to the extending direction of the drain pipe; the second adhesive sealing layer is arranged between the drain pipe and the second foam strip; the lower end of the first foam strip is fixed by the second adhesive sealing layer. The foam strips are arranged in the joints of the prefabricated outer wall, the sealing glue layers are arranged to form drainage cavities, water flows enter the joints of the prefabricated outer wall and flow downwards along the foam strips, and by utilizing the principle of unidirectional drainage of the drainage pipe, condensed water generated when the internal temperature and the external temperature of the drainage cavities are inconsistent and rainwater entering the cavities is drained when the outer wall sealing glue is damaged or bonded to be invalid.
Description
Technical Field
The patent of the utility model relates to a construction, concretely relates to prefabricated outer wall concatenation seam drainage structures of assembled concrete building.
Background
In a waterproof system of a prefabricated outer wall of an assembled concrete building, the design concept is that drainage is superior to water plugging all the time, so that the drainage function of a cavity is required to be realized to realize the integrity of the waterproof function of the building, but nowadays, the drainage of the assembled concrete building is still not paid attention to, and most of the waterproof function of the building is supported by the waterproof function of a material, but when the temperature inside and outside the drainage cavity is inconsistent, condensed water can be generated in the cavity, even when the sealant of the outer wall is damaged or bonded to fail, rainwater can directly enter the cavity to form accumulated water, and the rainwater can easily permeate into the interior of a room in the past.
SUMMERY OF THE UTILITY MODEL
The utility model aims at providing a better drainage structures to prefabricated outer wall concatenation seam of assembled concrete building.
In order to realize above-mentioned purpose, the technical scheme that this application adopted is prefabricated outer wall concatenation seam drainage structures of assembled concrete building, includes:
the first foam strip is arranged in the prefabricated outer wall joint;
the first adhesive tape layer is longitudinally arranged on the outer side of the first foam strip 1 and used for sealing the prefabricated outer wall joint;
the drain pipe penetrates through the first adhesive sealing layer and is fixed by the first adhesive sealing layer, one end of the drain pipe is arranged on one side of the longitudinal adhesive sealing layer, and the other end of the drain pipe is arranged on the other side of the longitudinal adhesive sealing layer and is communicated with the drain cavity;
the second foam strip is arranged below the drain pipe and is parallel to the extending direction of the drain pipe;
the second adhesive sealing layer is arranged between the drain pipe and the second foam strip;
the lower end of the first foam strip is fixed by the second adhesive sealing layer.
The foam strips are arranged in the joints of the prefabricated outer wall and the sealing glue layers are arranged to form drainage cavities, water flows enter the joints of the prefabricated outer wall and flow downwards along the foam strips, condensed water generated when the internal temperature and the external temperature of the drainage cavities are inconsistent is discharged by utilizing the principle of unidirectional drainage of the drainage pipe, and rainwater entering the cavities is discharged when the outer wall sealing glue is damaged or bonded to lose efficacy, so that external rainwater and insects are prevented from entering the cavities through the drainage pipe.
Furthermore, prefabricated outer wall concatenation seam drainage structures of assembled concrete building still includes the third foam strip, and above-mentioned third foam strip sets up in the prefabricated outer wall seam of second foam strip below, inside the first glue sealing layer.
Further, the third foam strip and the second foam strip are of an integral structure.
Furthermore, the inner diameter of the drain pipe is more than or equal to 10 mm.
Furthermore, the outer diameter of the drain pipe is less than or equal to the width of the prefabricated outer wall joint, and the difference between the prefabricated outer wall joint and the outer diameter of the drain pipe is 4-5 mm.
Furthermore, the water discharge pipe extends out of the outer surface of the first sealing glue layer by more than or equal to 5 mm.
Furthermore, a one-way valve for enabling water flow to flow out from the prefabricated outer wall joint is arranged on the water drainage pipe.
Furthermore, the inward end of the drain pipe is located at the middle position of the upper side of the second adhesive tape.
Further, the drain pipe is made of a flexible material.
The utility model also provides a construction method of the prefabricated outer wall splicing drainage pipe of the fabricated concrete building, which comprises the steps of cleaning and drying the joints of the prefabricated concrete slabs, filling flexible closed-cell polyethylene foam round bar gaskets into the joint cavities, filling sealant into the joints, and injecting the foam round bar gaskets serving as backing materials when the sealant is filled into the joints; before glue injection, a layer of primer liquid is coated on the bonding surface, and after 5-10 minutes, the sealant is adhered to the foam round bar liner for glue injection, so that the sealant is adhered to the backing material and is connected with the three inner walls of the seam to form a drainage cavity section; then, inserting another oblique polyethylene foam round bar liner into a seam cavity which needs to be used as a water outlet, injecting glue on the polyethylene foam round bar liner, and finally flattening the sealant to form a drainage slope; the drainage pipe is obliquely arranged on the slope rubber surface, and is tightly wrapped by the sealant and tightly bonded with the joint, wherein the drainage pipe and the foam round bar gasket are in a bonding state by the sealant injected, and the water inlet of the drainage pipe is positioned on the middle section of the sealing rubber layer formed by the sealant injected on the foam round bar gasket.
The drainage pipe constructed by the construction method utilizes the principle of one-way drainage of the drainage pipe to drain condensed water generated when the internal temperature and the external temperature of the drainage cavity are inconsistent, and drain rainwater entering the cavity when the sealant of the outer wall is damaged or the adhesive fails, so that external rainwater and insects are prevented from entering the cavity through the drainage pipe.
Furthermore, sealant is filled at the joint of the exposed pipe orifice of the drain pipe by 3-6mm to prevent flowing water from polluting the surface of the sealant.
Furthermore, the drain pipe is arranged by adopting a one-way baffle.
Furthermore, the inner diameter of the drain pipe is more than or equal to 10mm, and the outer diameter of the drain pipe is less than the width of the sealing rubber seam by 4 mm.
Further, when the round flexible closed-cell polyethylene foam rod is broken during the insertion of the round flexible closed-cell polyethylene foam rod pad into the joint cavity, the broken portion of the round flexible closed-cell polyethylene foam rod is directed toward the inside of the joint cavity.
Furthermore, a baffle matched with the inner diameter of the drain pipe is arranged in the drain pipe, and the baffle is hinged to the inner wall of the upper side of the drain pipe through a one-way hinge, so that the baffle can rotate towards the outlet direction of the drain pipe. The baffle can prevent insects and the like from entering the water pipe to block the pipeline while playing a role of unidirectional drainage, and can also avoid the noise generated by air convolution.
Further, when the baffle is arranged, a gap is arranged between the side edge of the baffle and the inner wall of the drain pipe. The baffle plate in the drainage pipe is tightly matched with the pipe wall, so that the air pressure in the cavity can be kept consistent with the external air pressure, and the suck-back phenomenon caused by pressure difference can be prevented. By utilizing the principle of one-way drainage of the drainage pipe, the drainage cavity can discharge the rainwater entering the cavity due to the condensed water generated when the internal and external temperatures are inconsistent and when the sealant of the outer wall is damaged or the bonding fails, and meanwhile, the external rainwater and insects can be prevented from entering the cavity through the drainage pipe.
Further, when the flexible closed-cell polyethylene foam round bar pad is plugged into the seam cavity, the seam is filled with the sealant within 24 hours.
Furthermore, the drain pipe is made of rubber or silica gel.
The present invention will be further described with reference to the accompanying drawings and the detailed description. Additional aspects and advantages of the invention will be set forth in part in the description which follows and, in part, will be obvious from the description. Or may be learned by practice of the invention.
Drawings
The accompanying drawings, which form a part of the disclosure, are included to assist in understanding the disclosure, and the description provided herein and the accompanying drawings, which are related thereto, are intended to explain the disclosure, but do not constitute an undue limitation on the disclosure.
In the drawings:
FIG. 1 is a schematic view for explaining a drainage structure of a prefabricated outer wall splicing seam of the fabricated concrete building;
FIG. 2 is a schematic view for explaining the prefabricated outer wall splicing seam drainage structure of the fabricated concrete building, which adopts an upper drainage pipe and a lower drainage pipe;
labeled as:
1-a first foam strip;
2-a first sealant layer;
3, a drain pipe;
4-a second foam strip;
5-a second adhesive sealing layer;
6-prefabricating an outer wall joint;
7-third foam strip.
Detailed Description
The present invention will be described more fully with reference to the accompanying drawings. Those of ordinary skill in the art will be able to implement the invention based on these descriptions. Before the present invention is described with reference to the accompanying drawings, it is to be noted that:
the technical solutions and features provided in the present invention in each part including the following description may be combined with each other without conflict.
Moreover, the embodiments of the invention described in the following description are generally only examples of a subset of the invention, and not all examples. Therefore, all other embodiments obtained by a person of ordinary skill in the art without creative efforts based on the embodiments of the present invention shall fall within the protection scope of the present invention.
With respect to the terms and units of the present invention. The term "comprises" and any variations thereof in the description and claims of this invention and the related art are intended to cover non-exclusive inclusions.
Referring to fig. 1 and 2, the prefabricated outer wall splicing seam drainage structure of the fabricated concrete building comprises a first foam strip 1, a first adhesive tape layer 2, a drainage pipe 3, a second foam strip 4 and a second adhesive tape layer 5; the first foam strip 1 is arranged in a prefabricated outer wall joint 6; the first adhesive sealing layer 2 is longitudinally arranged outside the first foam strip 1 and used for sealing the prefabricated exterior wall joint 6; the drain pipe 3 penetrates through the first adhesive tape layer 2 and is fixed by the first adhesive tape layer 2, one end of the drain pipe 3 is arranged on one side of the longitudinal adhesive tape layer, and the other end of the drain pipe 3 is arranged on the other side of the longitudinal adhesive tape layer and is communicated with the drain cavity; the second foam strip 4 is arranged below the drain pipe 3 and is parallel to the extending direction of the drain pipe 3; the second adhesive sealing layer 5 is arranged between the drain pipe 3 and the second foam strip 4; the lower end of the first foam strip 1 is fixed by a second adhesive layer 5.
The foam strips are arranged in the prefabricated outer wall joints 6, the sealing glue layers are arranged to form drainage cavities, water flows enter the prefabricated outer wall joints 6 and flow downwards along the foam strips, condensed water generated when the internal temperature and the external temperature of the drainage cavities are inconsistent is discharged by utilizing the principle of one-way drainage of the drain pipes 3, and rainwater entering the cavities is discharged when the outer wall sealing glue is damaged or bonded to fail, so that external rainwater and insects are prevented from entering the cavities through the drain pipes 3. The drain pipe 3 is made of a flexible material, and the drain pipe 3 may be made of hard plastic, rubber or silica gel.
In the preferred scheme, prefabricated outer wall concatenation seam drainage structures of assembled concrete building still includes third foam strip 7, and above-mentioned third foam strip 7 sets up in prefabricated outer wall seam 6, the inboard of first glue sealing layer 2 below second foam strip 4.
The third foam strips 7 are arranged and not only serve as supporting parts of the second foam strips 4, but also play a role in draining residual water as part of water flows along the second foam strips 4 when a plurality of drain pipes 3 are longitudinally arranged at the joints 6.
The third foam strip 7 and the second foam strip 4 are of an integral structure.
The inner diameter of the drain pipe 3 is more than or equal to 10 mm. According to general practice, if the inner diameter of the drain pipe 3 is less than or equal to 10mm, sundries are easy to block, large insects and other animals can easily enter the drain pipe, and the inner diameter of the drain pipe 3 is more than or equal to 10mm, so that the phenomenon can be reduced. The drain pipe 3 can here take an internal diameter of 10 mm. The arrangement angle of the drain pipe 3 can be horizontal or inclined, and in a preferred scheme, the drain pipe is arranged at an angle of 15-60 degrees relative to the horizontal plane.
The outer diameter of the drain pipe 3 is not more than the width of the prefabricated outer wall joint 6, and the difference between the prefabricated outer wall joint 6 and the outer diameter of the drain pipe 3 is 4-5 mm. So with guarantee drain pipe 3 and prefabricated outer wall can not direct contact, be first adhesive tape 2 between drain pipe 3 and the prefabricated outer wall promptly.
The drain pipe 3 extends out of the outer surface of the first adhesive tape layer by more than or equal to 5 mm. The protruding length here means a dimension in the horizontal direction, that is, a distance from an edge of the drain opening of the drain pipe 3 closest to the outer surface of the first sealant layer.
The drain pipe 3 is provided with a one-way valve which enables water flow to flow out from the prefabricated outer wall joint 6.
The inward end of the drain pipe 3 is located at the middle position of the upper side of the second adhesive tape 5. So that water flow can enter the drain pipe 3 along the upper side surface of the second sealant layer 5.
The construction method comprises the steps of installing a backing material, injecting glue to the backing, installing a drain pipe, lengthening, finishing a glue surface and performing later maintenance. Examples of the following are carried out:
firstly, during specific construction, firstly, construction preparation is carried out:
(1) after the seam is cleaned, when the outside of the seam part has floating slurry, the floating slurry is required to be shoveled by a scraper, and then dust is cleaned by a soft brush, so that the outside of the seam is ensured to be flat and clean. When the joints are filled with sundries such as foaming agent, steel bar joints, gaskets, battens and the like which are remained in the installation process of precast concrete components, tools such as electric picks, cutting machines and the like are used for cleaning the sundries, the construction depth of the foam caulking rods and the waterproof sealant is ensured, and finally, dust and loose sundries in the joints are cleaned by a powerful blower. The seam width is at least 4mm wider than the drain pipe.
(2) The masking paper is pasted and finished, and the masking paper mainly has the function of controlling the apparent width of the glue seam and ensuring the attractive and tidy appearance of the wall seam. The beautiful line paper is generally made of materials which are easy to stick and tear, the beautiful line paper is stuck and compacted along the two sides of the glue seam, and the beautiful line paper is not easy to break when the beautiful line paper is stuck so as to avoid influencing the beautiful appearance of the glue seam. When the cross seam is stuck, the beautiful pattern paper can be properly broken or bent.
(3) The primer coating liquid is uniformly coated, and the waterproof sealant generally has better adhesion with a cement substrate, but in consideration of the complexity of a construction site, such as: in order to better ensure the performance of the waterproof sealant, a joint base layer is carefully cleaned before the sealant is constructed, and a primer is uniformly brushed in a glue joint by using a hard brush, wherein the primer is a special matched product in the same factory as the waterproof sealant.
Mounting backing material
When the vertical joint is used for injecting glue, the vertical joint stops about 200mm above the preset installation position of the drain pipe, and the glue surface is trimmed into an inward oblique opening, so that the joint is convenient. And then, a foam rod is obliquely arranged at a preset position to serve as a second foam strip, the inner part is high, the outer part is low, the gradient is larger than 20 degrees, the diameter of the foam rod is slightly larger than that of the abutted seam by about 5mm, and the foam rod can be fixed in the seam without falling or sliding.
When the back lining glue injection is carried out, a layer of bottom coating liquid is coated on the bonding surface before the back lining glue injection, the sealant is tightly adhered to the back lining material for glue injection by the lengthened glue nozzle after 5 minutes, so that the sealant is adhered to the back lining material and is connected with the three side inner walls of the cavity to form a drainage cavity section, and finally the sealant is flattened by the scraper to form a drainage slope.
Thirdly, installing a drain pipe
The drain pipe is obliquely arranged on the slope rubber surface, the pipe orifice is exposed for about 5mm to prevent flowing water from polluting the rubber surface, and the drain pipe is tightly wrapped by the sealant and tightly bonded with the joint.
Fourth, later maintenance
After the glue is applied, the surface of the sealant is not cured deeply, so that the sealant cannot be pressed within 48 hours, and cannot be disturbed for construction within 28 days, and the service life of the drain pipe is guaranteed.
The contents of the present invention have been explained above. Those of ordinary skill in the art will be able to implement the invention based on these descriptions. Based on the above-mentioned contents of the present invention, all other embodiments obtained by those skilled in the art without creative efforts shall fall within the protection scope of the present invention.
Claims (9)
1. Prefabricated outer wall concatenation seam drainage structures of assembled concrete building, its characterized in that includes:
a first foam strip disposed within a prefabricated exterior wall seam;
the first adhesive sealing layer is longitudinally arranged on the outer side of the first foam strip and used for sealing the prefabricated outer wall joint;
the drain pipe penetrates through the first adhesive sealing layer and is fixed by the first adhesive sealing layer, one end of the drain pipe is arranged on one side of the longitudinal adhesive sealing layer, and the other end of the drain pipe is arranged on the other side of the longitudinal adhesive sealing layer and is communicated with the drain cavity;
the second foam strip is arranged below the drain pipe and is parallel to the extending direction of the drain pipe;
the second adhesive sealing layer is arranged between the drain pipe and the second foam strip;
the lower end of the first foam strip is fixed by the second adhesive sealing layer.
2. The prefabricated exterior wall splicing seam drainage structure of an assembled concrete building as claimed in claim 1, further comprising a third foam strip, wherein the third foam strip is arranged in the prefabricated exterior wall seam below the second foam strip and inside the first sealant layer.
3. The prefabricated exterior wall joint seam drainage structure of an assembled concrete building of claim 2, wherein the third foam strip and the second foam strip are of an integral structure.
4. The prefabricated exterior wall joint seam drainage structure of an assembled concrete building as claimed in claim 1, wherein the inner diameter of the drainage pipe is more than or equal to 10 mm.
5. The prefabricated outer wall splicing seam drainage structure for the fabricated concrete building as claimed in claim 1, wherein the outer diameter of the drainage pipe is less than or equal to the width of the prefabricated outer wall joint, and the difference between the prefabricated outer wall joint and the outer diameter of the drainage pipe is 4-5 mm.
6. The prefabricated outer wall splicing seam drainage structure for the fabricated concrete building as claimed in claim 1, wherein the drainage pipe extends more than or equal to 5mm beyond the outer surface of the first sealant layer.
7. The prefabricated exterior wall joint seam drainage structure of an assembled concrete building as claimed in claim 1, wherein a check valve for allowing water to flow out from the joints of the prefabricated exterior walls is provided on the drainage pipe.
8. The prefabricated outer wall joint seam drainage structure of an assembled concrete building as claimed in claim 1, wherein the inward end of the drainage pipe is located at the middle position of the upper side of the second sealant layer.
9. The prefabricated exterior wall joint seam drainage structure of an assembled concrete building of claim 1, wherein the drainage pipe is a drainage pipe made of a flexible material.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202021181423.5U CN213358979U (en) | 2020-06-23 | 2020-06-23 | Prefabricated outer wall concatenation seam drainage structures of assembled concrete building |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202021181423.5U CN213358979U (en) | 2020-06-23 | 2020-06-23 | Prefabricated outer wall concatenation seam drainage structures of assembled concrete building |
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| Publication Number | Publication Date |
|---|---|
| CN213358979U true CN213358979U (en) | 2021-06-04 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202021181423.5U Active CN213358979U (en) | 2020-06-23 | 2020-06-23 | Prefabricated outer wall concatenation seam drainage structures of assembled concrete building |
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| Country | Link |
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| CN (1) | CN213358979U (en) |
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2020
- 2020-06-23 CN CN202021181423.5U patent/CN213358979U/en active Active
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