Waterproof structure of stone reversely-hit prefabricated concrete sandwich heat-preservation externally-hung wallboard

Abstract

The utility model discloses a waterproof structure of a stone reversely-hit prefabricated concrete sandwich heat-preservation externally-hung wallboard. The waterproof structure comprises a horizontal seam waterproof structure and a vertical seam waterproof structure. The vertical joint waterproof structure comprises a first building sealant, a first foaming polyethylene rod, a round water pipe, a second building sealant, a second foaming polyethylene rod, a first airtight strip, a third foaming polyethylene rod, a third building sealant and a joint covering strip which are sequentially filled in a vertical joint from outdoor to indoor in the wall thickness direction. The horizontal seam waterproof structure sequentially comprises a slope water plate, a tongue-and-groove, a second airtight strip and a fifth building sealant from outside to inside. The waterproof treatment of the horizontal seam and the vertical seam of the externally-hung wallboard adopts multiple protection, the waterproof performance is durable and reliable, and the air tightness is tight; field installation is convenient, operability is high, rectification caused by water leakage and gas leakage is avoided, and economical efficiency is good.

Description

Technical Field

[0001] The utility model relates to the technical field of construction engineering, in particular to a stone reverse prefabricated concrete sandwich insulation external wallboard waterproof structure. Background Art

[0002] At present, the country is promoting "zero-waste cities" in many cities, and promoting the industrialization of new buildings with prefabricated buildings as the starting point is a key task. External wall panels integrate enclosure, decoration and other functions. They are manufactured in an industrialized way in prefabricated building factories. The use of dry construction methods helps to reduce the amount of dust, noise and sewage generated during on-site operations. The joints between adjacent external wall panels form horizontal and vertical board seams. In order to avoid water seepage at the board seams when it rains and problems such as loose air tightness, the gaps between these board seams need to be waterproofed and airtight.

[0003] The current regulations stipulate that the joints of external wall panels should use at least one waterproof structure that combines material waterproofing and structural waterproofing. During on-site construction, if the construction process does not meet the standards or the rain is too heavy, the current waterproofing method will fail, and joint leakage and air leakage problems will often occur. In addition, as the building is used for a longer time, the sealing structure is prone to aging, cracking, and even peeling, which will also affect the waterproof and airtight effects of the building.

[0004] In view of this, how to solve the problems of failure of waterproofing of existing stone-reverse precast concrete sandwich insulation exterior wall panels, resulting in joint leakage and poor air tightness, has become a topic to be studied and solved. Utility Model Content

[0005] In order to overcome the shortcomings of the prior art, the technical problem to be solved by the utility model is to provide a stone counter-hit precast concrete sandwich insulation external wall panel waterproof structure, the horizontal seams and vertical seams of the external wall panels are waterproofed with multiple layers of protection, the waterproofing is durable and reliable, and the air tightness is strict; it is easy to install on site, the operability is strong, and the rectification caused by water leakage and air leakage is avoided, and the economy is good.

[0006] To achieve the above-mentioned purpose, the utility model provides a stone counter-hit precast concrete sandwich insulation exterior wall panel waterproof structure, including a horizontal seam waterproof structure and a vertical seam waterproof structure; the vertical seam waterproof structure includes a first building sealant, a first foamed polyethylene rod, a round water pipe, a second building sealant, a second foamed polyethylene rod, a first airtight strip, a third foamed polyethylene rod, a third building sealant, and a cover seam strip filled in the vertical seam in sequence along the wall thickness direction from outdoor to indoor; the horizontal seam waterproof structure includes a slope water board, a tongue and groove, a second airtight strip and a fifth building sealant in sequence from outdoor to indoor.

[0007] Preferably, the first building sealant on the outdoor side of the vertical seam plays a first-level waterproof role; the first cavity that plays a second-level waterproof role is formed between the first foamed polyethylene rod and the round water pipe; the second cavity that plays a third-level waterproof role is formed between the third foamed polyethylene rod and the first air-tight strip; the third building sealant on the indoor side of the vertical seam plays a fourth-level waterproof role.

[0008] Furthermore, the tongue and groove are filled with a fourth building sealant and a fourth foamed polyethylene rod, and the fourth foamed polyethylene rod and the second airtight strip form a third cavity.

[0009] Furthermore, the diameter of the second foamed polyethylene rod is 1.3 to 1.5 times the width of the vertical seam.

[0010] Preferably, the diameter of the circular water pipe is 2-3 mm larger than the vertical seam, and is stuck in the vertical seam, so that the second building sealant is in an arc shape.

[0011] Furthermore, the water slope plate is in an M shape and is buckled on the tongue and groove.

[0012] Preferably, the external wall panels are composed of stone, outer blade concrete, insulation board, and inner blade concrete from the outside to the inside.

[0013] Furthermore, the first airtight strip and the second airtight strip are made of EPDM material and are pasted in the grooves reserved in the external wall panel.

[0014] Preferably, a water pipe is provided at the cross seam of the external wall panel, and an opening for receiving water is cut out on the upper surface of the water pipe where the water pipe extends into the first cavity.

[0015] Furthermore, the seam cover strip is U-shaped and is adhered to the third building sealant.

[0016] The waterproof structure of the stone counter-prefabricated concrete sandwich insulation external wallboard of the utility model has at least the following beneficial effects:

[0017] 1. The utility model adopts multi-layer protection for the waterproof treatment of the horizontal seams and vertical seams of the external wall panels. For the vertical seams, it is composed of a four-level waterproof structure, forming two cavities, and the waterproof effect is good; for the horizontal seams, it is composed of a five-level waterproof structure, forming a cavity, and the waterproof effect is good.

[0018] 2. The combination of horizontal seams and vertical seams of the utility model makes the waterproof and airtight effects of the external wall panels good, the waterproofness is durable and reliable, and the airtightness is tight; it is easy to install on site and has strong operability; it avoids rectification caused by water leakage and air leakage, and has good economy. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] In order to more clearly illustrate the technical solution of the present invention, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0020] Figure 1 It is a top view of the vertical seams between the exterior wall panels;

[0021] Figure 2 It is a side view of the vertical seam between the exterior wall panels;

[0022] Figure 3 It is a cross-sectional view of the horizontal seam between exterior wall panels.

[0023] 1-the first building sealant; 2-the first foamed polyethylene rod; 3-round water pipe; 4-the second building sealant; 5-the second foamed polyethylene rod; 6-the first airtight strip; 7-the third foamed polyethylene rod; 8-the third building sealant; 9-the cover seam strip; 10-the tongue and groove; 11-the fourth building sealant; 12-the fourth foamed polyethylene rod; 13-the second airtight strip; 14-the fifth building sealant; 15-the first cavity; 16-the second cavity; 17-the third cavity; 18-stone; 19-the outer blade concrete; 20-the insulation board; 21-the inner blade concrete; 22-the water guide pipe; 23-the slope water board; 24-the sixth building sealant; 25-the drip groove. DETAILED DESCRIPTION

[0024] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments of the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0025] See below Figure 1 to Figure 3 The utility model provides a detailed description of the waterproof structure of the stone counter-pressed prefabricated concrete sandwich thermal insulation external wall panel.

[0026] The utility model discloses a waterproof structure of a stone reverse prefabricated concrete sandwich insulation external wallboard, which comprises a horizontal seam waterproof structure and a vertical seam waterproof structure. The vertical seam waterproof structure is composed of four-level waterproof structures. Along the wall thickness direction, from outdoor to indoor, the materials filled in the vertical seam are first building sealant 1, first foamed polyethylene rod 2, round water pipe 3, second building sealant 4, second foamed polyethylene rod 5, first airtight strip 6, third foamed polyethylene rod 7, third building sealant 8, and seam cover strip 9. The first building sealant 1 on the outdoor side of the vertical seam plays a first-level waterproof role; a first cavity 15 is formed between the first foamed polyethylene rod 2 and the round water pipe 3, which plays a second-level waterproof role; a second cavity 16 is formed between the third foamed polyethylene rod 7 and the first airtight strip 6, which plays a third-level waterproof role; and the third building sealant (8) on the indoor side of the vertical seam plays a fourth-level waterproof role. The cover strip 9 is made of aluminum alloy and is U-shaped. It is pasted on the third building sealant 8 to prevent the third building sealant 8 from contacting with the air and aging easily. It has good air tightness and also plays a decorative role indoors.

[0027] The horizontal seam waterproof structure of the utility model is composed of a multi-level waterproof structure, which includes a water-slope board 23, a tongue and groove 10, a second airtight strip 13 and a fifth building sealant 14 in sequence from outdoor to indoor. The water-slope board 23 plays a first-level waterproof role; the tongue and groove 10 with a high inner side and a low outer side plays a second-level waterproof role, wherein the fourth building sealant 11 and the fourth foamed polyethylene rod 12 filled in the tongue and groove 10 play a third-level waterproof role. The tongue and groove 10 is formed by the upper and lower external wallboard structures. A third cavity 17 is formed between the fourth foamed polyethylene rod 12 and the second airtight strip 13, which plays a fourth-level waterproof role; the fifth building sealant 14 on the indoor side of the horizontal seam plays a fifth-level waterproof role. The water-slope board 23 is made of aluminum alloy and is folded into a similar M shape in the factory. After the external wallboard is installed, it is directly buckled on the tongue and groove 10, without screwing on the stone surface to avoid damaging the stone, and the installation is convenient. After the water-slope board 23 is installed, a layer of the sixth building sealant 24 is applied on one end of the water-slope board 23.

[0028] The external wall panel is composed of stone material 18, outer blade concrete 19, insulation board 20, and inner blade concrete 21 from outside to inside.

[0029] The second building sealant 4 is a modified silane sealant. The diameter of the second foamed polyethylene rod 5 is 1.3 to 1.5 times the width of the vertical seam.

[0030] The round water pipe 3 is made of PVC material, and its diameter is 2-3mm larger than the vertical seam. It is stuck in the vertical seam, so that the second building sealant 4 is arc-shaped, and the air tightness and waterproof effect are better.

[0031] The first airtight strip 6 and the second airtight strip 13 are made of EPDM and are pasted in the reserved grooves of the external wall panels. The vertical seams between the left and right external wall panels are squeezed to achieve better waterproof effect and airtightness, and the horizontal seams between the upper and lower external wall panels are squeezed to achieve better waterproof effect and airtightness.

[0032] In addition, a water pipe 22 is provided at the cross seam of the external wall panel. The water pipe 22 is made of PVC material and slopes outward by 5%. An opening for receiving water is cut out on the upper surface of the water pipe 22 extending into the first cavity 15.

[0033] The material of the stone material of the utility model is granite, with a litchi surface and six-sided protection to form a self-waterproof effect; a drip groove 25 is reserved at the bottom of the stone material, and the waterproof effect is good. The insulation board adopts a hydrophobic insulation board.

[0034] The above is only a specific implementation of the present invention, but the protection scope of the present invention is not limited thereto. Any changes or substitutions that can be understood by anyone familiar with the technology within the technical scope disclosed by the present invention should be included in the scope of the present invention.

Claims

1. A stone counter-prefabricated concrete sandwich insulation external wallboard waterproof structure, characterized in that: Including horizontal seam waterproof structure and vertical seam waterproof structure; The vertical seam waterproof structure comprises a first building sealant (1), a first foamed polyethylene rod (2), a round water pipe (3), a second building sealant (4), a second foamed polyethylene rod (5), a first airtight strip (6), a third foamed polyethylene rod (7), a third building sealant (8), and a seam cover strip (9) which are sequentially filled in the vertical seam along the wall thickness direction from the outside to the inside; The horizontal seam waterproof structure comprises, from the outside to the inside, a water slope board (23), a tongue and groove (10), a second airtight strip (13) and a fifth building sealant (14).

2. The stone counter-precast concrete sandwich insulation external wallboard waterproof structure according to claim 1 is characterized in that: The first building sealant (1) on the outdoor side of the vertical seam plays a first-level waterproofing role; a first cavity (15) playing a second-level waterproofing role is formed between the first foamed polyethylene rod (2) and the round water pipe (3); a second cavity (16) playing a third-level waterproofing role is formed between the third foamed polyethylene rod (7) and the first airtight strip (6); and the third building sealant (8) on the indoor side of the vertical seam plays a fourth-level waterproofing role.

3. The stone reverse precast concrete sandwich insulation external wallboard waterproof structure according to claim 1 is characterized in that: The groove (10) is filled with a fourth building sealant (11) and a fourth foamed polyethylene rod (12), and the fourth foamed polyethylene rod (12) and the second airtight strip (13) form a third cavity (17).

4. The stone reverse precast concrete sandwich insulation external wallboard waterproof structure according to claim 1 is characterized in that: The diameter of the second foamed polyethylene rod (5) is 1.3 to 1.5 times the width of the vertical seam.

5. The stone reverse precast concrete sandwich insulation external wallboard waterproof structure according to claim 1 is characterized in that: The diameter of the circular water pipe (3) is 2-3 mm larger than the vertical seam and is stuck in the vertical seam, so that the second building sealant (4) is in an arc shape.

6. The stone reverse precast concrete sandwich insulation external wallboard waterproof structure according to claim 1 is characterized in that: The water slope plate (23) is in an M shape and is buckled on the tongue and groove (10).

7. The stone reverse precast concrete sandwich insulation external wallboard waterproof structure according to claim 1 is characterized in that: The external wall panel is composed of stone (18), outer blade concrete (19), insulation board (20), and inner blade concrete (21) in sequence from the outside to the inside.

8. The stone reverse precast concrete sandwich insulation external wallboard waterproof structure according to claim 1 is characterized in that: The first airtight strip (6) and the second airtight strip (13) are made of EPDM and are pasted in the grooves reserved in the external wall panel.

9. The stone reverse precast concrete sandwich insulation external wallboard waterproof structure according to claim 1 is characterized in that: A water pipe (22) is arranged at the cross seam of the external wall panel, and an opening for receiving water is cut out on the upper surface of the water pipe (22) where the water pipe (22) extends into the first cavity (15).

10. The stone reverse precast concrete sandwich insulation external wallboard waterproof structure according to claim 1, characterized in that: The seam cover strip (9) is U-shaped and is adhered to the third building sealant (8).

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