Waterproof joint structure of prefabricated outer wall for industrial upstairs

Abstract

The utility model relates to the technical field of industrial upstairs, and discloses an industrial upstairs prefabricated outer wall waterproof node structure which comprises a main body structure and an outer wall, a first waterproof node is arranged between the main body structure and the outer wall, the outer wall is provided with a plurality of outer wall gaps, and second waterproof nodes are arranged between the outer wall gaps. The second waterproof joint comprises a sealing layer arranged on the outer side of the outer wall, an airtight layer arranged on the inner side of the outer wall and a drainage cavity between the sealing layer and the airtight layer. The problems that a prefabricated outer wall joint is prone to leakage and construction and maintenance are not easy are solved.

Description

Technical Field

[0001] This utility model relates to the field of industrial building construction technology, specifically to a prefabricated waterproof joint structure for industrial building construction. Background Technology

[0002] Industrial buildings on upper floors represent a new industrial development model that involves shifting industrial production activities from traditional single-story factories to multi-story or high-rise buildings. This model typically appears in cities or regions with limited land resources, improving land use efficiency through the utilization of vertical space. The exterior walls of industrial buildings are usually constructed using prefabricated assembly technology. Because prefabricated exterior walls are assembled from multiple prefabricated concrete components made of different materials, the joints between the prefabricated concrete components and between the prefabricated exterior walls and the main structure are crisscrossed, making them prone to leakage under various environmental conditions such as temperature changes and rain erosion. At the same time, the installation space is limited, making construction, operation, replacement, and maintenance inconvenient. Utility Model Content

[0003] The purpose of this utility model is to provide a waterproof joint structure for prefabricated exterior walls in industrial buildings, so as to solve the problems mentioned in the background art of the connection joint structure that is prone to leakage; at the same time, the installation space is small and the construction operation and replacement and maintenance are inconvenient.

[0004] To achieve the above objectives, this utility model provides the following technical solution:

[0005] A prefabricated exterior wall waterproofing node structure for industrial buildings includes a main structure and an exterior wall. A first waterproofing node is provided between the main structure and the exterior wall. A plurality of exterior wall gaps are provided on the exterior wall. A second waterproofing node is provided between the exterior wall gaps. The second waterproofing node includes a sealing layer on the outside of the exterior wall, an airtight layer on the inside of the exterior wall, and a drainage cavity between the sealing layer and the airtight layer.

[0006] Furthermore, the sealing layer includes a first sealing layer and a second sealing layer disposed from the outside to the inside in the gap on the outer side of the outer wall. The first sealing layer is a weather-resistant sealant, and the second sealing layer is a PE rod. The airtight layer is an airtight strip disposed in the gap on the inner side of the outer wall.

[0007] Furthermore, the external wall gaps include horizontal joints and vertical joints. The drainage cavity of the horizontal joint is a first drainage cavity, which has a tongue-and-groove structure with a lower outer edge and a higher inner edge. The drainage cavity of the vertical joint is a second drainage cavity, which has a pressure-reducing cavity structure.

[0008] Furthermore, the main structure is composed of several wall sections, each of which consists of a structural beam and a floor slab above the structural beam.

[0009] Furthermore, the first waterproof node includes a fireproof layer disposed between the structural beam and the main structure, and a sealing layer disposed between the floor slab and the main structure. An operating cavity is provided between the fireproof layer and the sealing layer. When the operating cavity is connected to the transverse joint, the bottom of the operating cavity is higher than the top of the first drainage cavity of the transverse joint.

[0010] Furthermore, the fireproof layer includes a first fireproof layer and a second fireproof layer, wherein the first fireproof layer is a fireproof block and the second fireproof layer is a fireproof partition; the sealing layer includes a first sealing layer and a second sealing layer, wherein the first sealing layer is a fireproof sealant and the second sealing layer is a PE rod.

[0011] Preferably, a sealing layer is provided at the connection between the vertical joint and the floor slab, and the sealing layer is a mortar sealing layer.

[0012] Preferably, every 2 to 4 sections of the wall structure, an isolation block is provided at the bottom of the second drainage cavity. The inner side of the isolation block abuts against the fireproof layer, the top of the isolation block abuts against the airtight layer, and the outer side is wedge-shaped. The wedge-shaped surface of the isolation block is provided with a water guide strip extending to the airtight layer for a certain distance.

[0013] Furthermore, a drain outlet is provided between the water guide strip and the sealing layer, and the drain outlet is connected to an external drainage system.

[0014] Furthermore, the external drainage system is a drip line, a drainage channel, or a flashing.

[0015] Compared with the prior art, the beneficial effects of this utility model are:

[0016] 1. This utility model ensures the fire resistance and waterproofness of the connection between the main structure and the exterior wall by setting a first waterproof node between the main structure and the exterior wall. The first waterproof node adopts a structure with an operating cavity sandwiched between a fireproof layer and a sealing layer. At the same time, the setting of the operating cavity also facilitates construction and maintenance. By setting a second waterproof node at the joint of the exterior wall, the second waterproof node adopts a double seal with a sealing layer on the outer water-facing side and an airtight layer on the inner back water-facing side. The waterproof effect is enhanced by the complementary characteristics of the material's weather resistance and airtightness. At the same time, a drainage cavity is set between the sealing layer and the airtight layer to enhance the waterproof effect structurally. Furthermore, for the characteristics of the first drainage cavity of the horizontal joint, a tongue and groove structure with a lower outer side and a higher inner side is adopted to guide rainwater outward by gravity and prevent backflow. For the second drainage cavity of the vertical joint, a pressure-reducing cavity structure is designed to disperse water pressure and reduce the risk of leakage.

[0017] 2. By setting wedge-shaped isolation blocks and water guide strips at the bottom of the second drainage cavity of the vertical joint of the wall structure at intervals of 2 to 4 sections, rainwater is directed into the drainage outlet and discharged through the external drainage system. Even if the sealing layer fails, the infiltrated water can still be discharged through the drainage outlet, forming an active waterproofing mechanism of "guided drainage combination".

[0018] In summary, this utility model, through its dual waterproof nodes, with each node designed specifically for waterproofing in terms of both materials and structure, solves the problems of easy leakage at prefabricated exterior wall joints and difficulties in construction and maintenance, making it suitable for the waterproofing needs of high-rise industrial buildings. Attached Figure Description

[0019] Figure 1 This is a three-dimensional schematic diagram of the overall structure of this utility model;

[0020] Figure 2 This is a three-dimensional schematic diagram of the waterproof joint structure of the vertical joint of the exterior wall according to this utility model;

[0021] Figure 3 This is a three-dimensional schematic diagram of the vertical joint drainage outlet structure of this utility model;

[0022] Figure 4 This is an enlarged view of the vertical joint drainage outlet structure of this utility model;

[0023] In the diagram: 100 - Exterior wall, 110 - Protective panel, 200 - Main structure, 210 - Structural beam, 220 - Floor slab, 300 - Second waterproofing node, 310 - Sealing layer, 311 - First sealing layer, 312 - Second sealing layer, 320 - Airtight layer, 330 - Drainage cavity, 331 - First drainage cavity, 332 - Second drainage cavity, 400 - First waterproofing node, 410 - Fireproof layer, 411 - Fireproof block, 412 - Fireproof partition, 420 - Sealing layer, 421 - First sealing layer, 422 - Second sealing layer, 430 - Operating cavity, 500 - Sealing layer, 610 - Isolation block, 620 - Water guide strip, 630 - Drain outlet. Detailed Implementation

[0024] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0025] like Figure 1As shown, a waterproof joint structure for prefabricated exterior wall 100 in industrial buildings includes a main structure 200 and an exterior wall 100. A first waterproof joint 400 is provided between the main structure 200 and the exterior wall 100. A plurality of gaps are provided on the exterior wall 100. A second waterproof joint 300 is provided between the gaps. The second waterproof joint 300 includes a sealing layer 310 on the water-facing side of the exterior wall 100, an airtight layer 320 on the water-repellent side of the exterior wall 100, and a drainage cavity 330 between the sealing layer 310 and the airtight layer 320.

[0026] like Figure 1 As shown, the sealing layer 310 includes a first sealing layer 311 and a second sealing layer 312 disposed from the outside to the inside in the gap on the outside of the outer wall 100. The first sealing layer 311 is a weather-resistant sealant, and the second sealing layer 312 is a PE rod. The airtight layer 320 is an airtight strip disposed in the gap on the inside of the outer wall 100. By setting two seals, namely the sealing layer 310 and the airtight layer 320, different sealing materials are used to complement and strengthen the sealing effect, thereby enhancing the long-term waterproof effect.

[0027] like Figure 1-2 As shown, the gaps in the exterior wall 100 include horizontal joints and vertical joints. The drainage cavity 330 of the horizontal joint is a first drainage cavity 331, which has a tongue-and-groove structure that is lower on the outside and higher on the inside. It uses gravity to guide rainwater outward and prevent backflow. The drainage cavity 330 of the vertical joint is a second drainage cavity 332, which has a pressure-reducing cavity structure. By reserving the pressure-reducing cavity, water seepage is guided, thereby reducing the risk of leakage at the vertical joint.

[0028] like Figure 1 As shown, the main structure 200 is composed of several wall sections, each of which consists of a structural beam 210 and a floor slab 220 above the structural beam 210.

[0029] like Figure 1-3 As shown, the first waterproof node 400 includes a fireproof layer 410 disposed between the structural beam 210 and the main structure 200, and a sealing layer 420 disposed between the floor slab 220 and the main structure 200. An operating cavity 430 is provided between the fireproof layer 410 and the sealing layer 420. When the operating cavity 430 is connected to the horizontal joint, the bottom of the operating cavity 430 is higher than the top of the first drainage cavity 331 of the horizontal joint. The operating cavity 430 facilitates the construction and maintenance of the waterproof node.

[0030] like Figure 1As shown, the fireproof layer 410 includes a first fireproof layer 410 and a second fireproof layer 410, the first fireproof layer 410 being a fireproof block 411 and the second fireproof layer 410 being a fireproof partition 412; the sealing layer 420 includes a first sealing layer 421 and a second sealing layer 422, the first sealing layer 421 being a fireproof sealant and the second sealing layer 422 being a PE rod.

[0031] In actual implementation, the fireproof block 411 is rock wool or mineral wool, and the fireproof partition 412 is gypsum board, magnesium oxide board, or metal composite board.

[0032] like Figure 1 As shown, a sealing layer 500 is also provided at the connection between the vertical joint and the floor slab 220, and the sealing layer 500 is a mortar sealing layer 500.

[0033] like Figure 3-4 As shown, every 2 to 4 sections of the wall structure, an isolation block 610 is provided at the bottom of the second drainage cavity 332. The inner side of the isolation block 610 abuts against the fireproof layer 410, the top of the isolation block 610 abuts against the airtight layer 320, and the outer side is wedge-shaped. A water guide strip 620 is provided on the wedge-shaped surface of the isolation block 610, extending to the airtight layer 320 for a certain distance.

[0034] In actual implementation, the wedge-shaped surface of the isolation block 610 is provided with a water guide strip 620 extending 200-500mm onto the airtight layer 320.

[0035] In actual implementation, the isolation block 610 is made of fire-resistant concrete, and the water guide strip 620 is made of weather-resistant sealant.

[0036] like Figure 3-4 As shown, a drain outlet 630 is provided between the water guide strip 620 and the sealing layer. The drain outlet 630 is connected to an external drainage system. Even if the sealing layer is damaged, rainwater that seeps into the drainage cavity can be discharged through the drain outlet 630, further enhancing the waterproof sealing effect.

[0037] In practice, the external drainage system is a drip line, drainage trough, or flashing.

[0038] like Figure 2 As shown, the exterior wall 100 is provided with a protective panel 110. The protective panel 110 is an aluminum alloy plate, which can block some rainwater and also serves as a decorative panel.

[0039] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to the embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A waterproof joint structure for prefabricated exterior walls in industrial buildings, characterized in that: It includes a main structure and an outer wall. A first waterproof node is provided between the main structure and the outer wall. A number of outer wall gaps are provided on the outer wall. A second waterproof node is provided between the outer wall gaps. The second waterproof node includes a sealing layer on the outside of the outer wall, an airtight layer on the inside of the outer wall, and a drainage cavity between the sealing layer and the airtight layer.

2. The prefabricated exterior wall waterproofing joint structure for industrial upper floors according to claim 1, characterized in that: The sealing layer includes a first sealing layer and a second sealing layer disposed from the outside to the inside in the gap on the outer side of the outer wall. The first sealing layer is a weather-resistant sealant and the second sealing layer is a PE rod. The airtight layer is an airtight strip disposed in the gap on the inner side of the outer wall.

3. The prefabricated exterior wall waterproofing joint structure for industrial upper floors according to claim 2, characterized in that: The external wall gaps include horizontal joints and vertical joints. The drainage cavity of the horizontal joint is a first drainage cavity, which has a tongue-and-groove structure with a lower outer edge and a higher inner edge. The drainage cavity of the vertical joint is a second drainage cavity, which has a pressure-reducing cavity structure.

4. The prefabricated exterior wall waterproofing joint structure for industrial upper floors according to claim 1, characterized in that: The main structure consists of several wall sections, each of which is composed of a structural beam and a floor slab above the structural beam.

5. The prefabricated exterior wall waterproofing joint structure for industrial buildings according to claim 3, characterized in that: The first waterproof node includes a fireproof layer disposed between the structural beam and the main structure, and a sealing layer disposed between the floor slab and the main structure. An operating cavity is provided between the fireproof layer and the sealing layer. When the operating cavity is connected to the transverse joint, the bottom of the operating cavity is higher than the top of the first drainage cavity of the transverse joint.

6. The prefabricated exterior wall waterproofing joint structure for industrial upper floors according to claim 5, characterized in that: The fireproof layer includes a first fireproof layer and a second fireproof layer, wherein the first fireproof layer is a fireproof block and the second fireproof layer is a fireproof partition; the sealing layer includes a first sealing layer and a second sealing layer, wherein the first sealing layer is a fireproof sealant and the second sealing layer is a PE rod.

7. The prefabricated exterior wall waterproofing joint structure for industrial upper floors according to claim 5, characterized in that: A sealing layer, which is a mortar sealing layer, is also provided at the connection between the vertical joint and the floor slab.

8. The prefabricated exterior wall waterproofing joint structure for industrial upper floors according to claim 5, characterized in that: Every 2 to 4 sections of wall structure, an isolation block is provided at the bottom of the second drainage cavity. The inner side of the isolation block abuts against the fireproof layer, the top of the isolation block abuts against the airtight layer, and the outer side is wedge-shaped. The wedge-shaped surface of the isolation block is provided with a water guide strip extending to the airtight layer for a certain distance.

9. The prefabricated exterior wall waterproofing joint structure for industrial upper floors according to claim 8, characterized in that: A drain outlet is provided between the water guide strip and the sealing layer, and the drain outlet is connected to an external drainage system.

10. The prefabricated exterior wall waterproofing joint structure for industrial upper floors according to claim 9, characterized in that: The external drainage system is a drip line, drainage channel, or flashing.

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