Multifunctional drainage and exhaust combined device for flat roof and construction method

Abstract

The invention discloses a multifunctional drainage and exhaust combined device for a flat roof and a construction method, the device comprises at least one drainage and exhaust node assembly, and the node assembly forms different shapes according to different positions of the roof and is fixed at a key control point on a roof sloping layer or a roof panel; the joint assembly comprises a pipeline body, an inner partition plate is arranged in an inner cavity of the pipeline body, and the inner partition plate divides the inner cavity of the pipeline into a drainage channel located at the bottom of the pipeline and exhaust channels located on the two sides of the drainage channel, a hole communicated with the drainage channel is formed in the top of the pipeline, and holes communicated with the exhaust channel are formed in the two sides of the pipeline; the joint assembly further comprises two dividing joint side plates fixedly connected with the center of the upper surface of the top of the pipeline body, and the dividing joint side plates are arranged at intervals to form dividing joints. The drainage and exhaust functions are integrated, the functions of dividing joints and flatness control are achieved, the construction procedure is simplified, and the labor cost and the construction time are saved.

Description

Technical Field

[0001] The present invention belongs to the technical field of building engineering, and more specifically, relates to a flat roof multifunctional drainage and exhaust combination device and a construction method. Background Art

[0002] The upright roof is a traditional roof insulation method, which is characterized by the insulation layer being located below the waterproof layer. This roof construction method has relatively low requirements for insulation materials. Commonly used insulation materials include aerated concrete, expanded perlite, mineral wool, etc., which are relatively cheap. However, these materials are easy to absorb water. Once they absorb water, their thermal insulation performance will be greatly reduced, so a waterproof layer is needed to protect the insulation layer from moisture intrusion. The disadvantages of the upright roof include a relatively complicated construction procedure, a relatively short service life, and the roof is prone to leaks. Since the waterproof material is exposed to the top layer, it is easily affected by temperature changes and ultraviolet radiation, resulting in aging and cracking, thereby affecting the waterproof effect. In addition, in order to remove moisture from the insulation layer and the leveling layer and prevent water vapor from causing the waterproof layer to bulge, it is usually necessary to set a large number of exhaust holes on the roof, which not only affects the appearance and use of the roof, but may also damage the integrity of the waterproof layer.

[0003] At present, the positive roof is widely used, especially in hot summer and cold winter areas, cold and severe cold areas, which require high protection of the insulation layer. The insulation layer is often placed under the waterproof layer. Since the insulation layer is in a sealed space as a whole, a large amount of water vapor will be generated when the temperature rises, and an exhaust system must be used to discharge the gas. At the same time, when the roof area is large, flatness control and crack control are the construction focuses of the roof project. In addition, the surface runoff control under heavy rain conditions also has a great impact on the later use function.

[0004] There are three methods in the prior art: (1) by connecting the insulation layer, the exhaust holes set on the modular waterproof board and the exhaust channel set on the module connection component, the gas in the insulation layer is discharged. The problem that the existing roof modular waterproof component does not have the exhaust function is solved. However, it does not have the flatness control and drainage function of a large area of ​​the roof. (2) by the concrete layer, the convex block, the insulation layer, the first exhaust pipe, the leveling layer, the waterproof layer, the waterproof protective layer, the second exhaust pipe, the elbow and the water stop steel plate and other structures are coordinated with each other, so that the waterproof layer extends to the side of the convex block, which can avoid the exhaust pipe installation position leaking after the exhaust pipe is installed. However, in a large area of ​​the roof, if only the side vent pipe is used for exhaust, the exhaust effect will be significantly reduced, which is easy to cause the waterproof layer to bulge or damage. (3) by setting the exhaust pipe vertically connected to the exhaust channel, the problem of difficult roof slope and easy damage to the exhaust pipe is solved, which can not only avoid the exhaust pipe from being damaged, but also improve the construction effect of the roof. However, the structure has no drainage function, and no effective treatment measures are proposed for the treatment of large-area roof partition joints. There is a problem that large-area roof partition joints still need to be cut later and are prone to cracking. Summary of the invention

[0005] Aiming at the problems that ordinary exhaust ducts of large-area upright roof projects are easily blocked by cement mortar, the surface runoff is large and inconvenient to walk under heavy rain conditions, and the roof fine stone concrete protective layer is easy to crack and difficult to control the flatness, the present invention provides a flat roof multifunctional drainage and exhaust assembly device, which is composed of drainage and exhaust node components, can be quickly assembled on site, and can adapt to fine stone concrete grids of different sizes. The pipeline body is provided with a drainage channel between the exhaust ducts, the drainage channel is completely isolated from the exhaust ducts on both sides, but is connected to the upper grid joint pipeline, and the grid joint is filled with permeable concrete as a rainwater infiltration channel. The infiltrated rainwater directly enters the lower drainage channel, and then is discharged into the roof rainwater ditch by the drainage channel.

[0006] The present invention provides a multifunctional drainage and exhaust assembly device for a flat roof, comprising at least one drainage and exhaust node assembly, wherein the drainage and exhaust node assembly is formed into different shapes according to different positions of the roof, and is fixed to key control points (boundary T-shaped points, L-shaped corner points, cross intersection points) on the roof slope layer or the roof panel; the drainage and exhaust node assemblies are assembled and combined with each other to adapt to fine stone concrete grids of different sizes;

[0007] The drainage and exhaust node assembly includes a pipe body, an inner partition is provided in the inner cavity of the pipe body, and the inner partition divides the inner cavity of the pipe into a drainage channel located at the bottom of the pipe and exhaust channels located on both sides of the drainage channel, which are independent of each other; an opening is provided at the top of the pipe to communicate with the drainage channel, and openings are provided on both sides of the pipe to communicate with the exhaust channel;

[0008] The drainage and exhaust node assembly also includes two partitioned seam side plates arranged in the center of the top upper surface of the pipeline body. The partitioned seam side plates are arranged at intervals and fixedly connected to the top of the pipeline body. A partitioned seam is formed between the two partitioned seam side plates. The partitioned seam and the drainage and exhaust channel formed by the lower component are in the same direction.

[0009] Specifically, the pipeline body is a long tube with a rectangular end face, and the long tube is fixedly connected by a bottom plate, two perforated side plates and a perforated top plate.

[0010] Specifically, the pipeline body is a T-shaped pipe with a rectangular end face (the T-shaped pipe is arranged at the T-shaped point of the wall boundary), and the drainage channel is T-shaped.

[0011] Specifically, the pipeline body is an L-shaped pipe with a rectangular end face (the L-shaped pipe is arranged at the L-shaped corner point of the wall), and the drainage channel is L-shaped.

[0012] Specifically, the pipe body is a cross-shaped pipe with a rectangular end face (the cross is arranged at the cross intersection of the roof), and the drainage channel is cross-shaped.

[0013] Furthermore, the pipe body of the cross-shaped pipe also includes an air pipe, which is a vertically arranged tubular structure. The bottom of the air pipe is fixed to the top center of the cross-shaped pipe through a reducing connection assembly, and the upper part of the air pipe is forked and bent to form two air outlets opening downward; the upper surface of the pipe body is provided with an opening that penetrates the exhaust channel and the air pipe.

[0014] Furthermore, a coil material fixing strip is provided on the outer side of the lower part of the partition seam side panel, the upper edge of the coil material fixing strip is fixedly connected to the partition seam side panel, and the lower part is warped outward to form an arc-shaped curved portion, and fixing bolts are provided on the arc-shaped curved portion at regular intervals for fixing the coil material fixing strip.

[0015] Furthermore, fixed gaskets are extended along the left and right sides of the bottom of the pipe body, and the fixed gaskets are arranged at a certain interval along the bottom length direction of the pipe body. The drainage and exhaust node assembly is fixed to the roof slope layer or roof panel through the fixed gaskets.

[0016] Furthermore, the interior of the exhaust channel is filled with large-void open-graded hard plastic particles, so that the pipeline can resist compression and deformation.

[0017] The present invention also provides a construction method of a flat roof multifunctional drainage and exhaust assembly device, the specific steps are as follows:

[0018] S100: Construction preparation: Ensure that the construction site has the necessary construction conditions, including material storage areas, tool and equipment placement areas, etc.; check whether the water supply and power supply pipelines meet the construction requirements and ensure safety; investigate the surrounding environment to understand the factors that may affect the construction, such as weather and traffic; complete the construction of the roof slope layer according to the architectural design requirements to ensure smooth drainage; provide detailed technical explanations and safety education to the construction personnel to ensure construction quality and safety;

[0019] S200: Measurement and layout: Determine the size and position of the partition joints according to the design drawings and specification requirements; carry out detailed layout design on the building plan to ensure the reasonable layout of the partition joints; lay out the lines on site to ensure the accuracy of the control points, and spray paint the cross points, L-shaped corner points, and boundary T-shaped points of the key control points, and take reliable protection measures to prevent accidental damage during the construction process;

[0020] S300: Node component assembly: Place "X"-shaped node components, "T"-shaped node components, and "L"-shaped node components according to the paint positioning points marked by the line, use a level or other tools to adjust the elevation of the components to ensure the flatness, and after the adjustment is completed, use a nail gun to fix each component on the slope layer or roof panel;

[0021] S400: Assembly of common parts: Place long tube common parts according to the fixed node parts and their positioning ink lines, and level them after placement to ensure the flatness and sealing of the joints. After leveling, use a nail gun to fix each component on the slope layer or roof panel in time;

[0022] S500: Insulation layer installation: Install insulation boards in each grid and ensure that the gaps in the insulation boards are filled with special materials to achieve a good insulation effect;

[0023] S600: Leveling layer construction: Construct cement mortar leveling layer in each grid. The drainage slope should be considered during the leveling layer construction to ensure that rainwater can be discharged smoothly.

[0024] S700: Waterproof layer construction: according to the design requirements and specifications, the waterproofing membrane is spread, the membrane is cut at the partition joint, and the end is inserted into the fixing strip, and then the fixing bolts are tightened and fixed, and then the sealing paste is used to seal to ensure the waterproof effect;

[0025] S800: Protective layer construction: Use the partition joint side plate as the side formwork, adopt the skip bin method to construct the fine stone concrete protective layer, and use the top of the partition joint side plate as the reference surface to directly control the elevation of the finished surface of the fine stone concrete in each bin.

[0026] In general, the above technical solutions conceived by the present invention can achieve the following beneficial effects compared with the prior art:

[0027] 1. The multifunctional drainage and exhaust combined device for flat roofs of the present invention isolates the drainage channel from the exhaust channel by arranging an inner partition inside the pipe body and providing dense perforations on the top and both sides of the pipe body, so that gas and moisture can flow in different channels respectively, which can reduce the accumulation of moisture in the insulation layer and allow the gas to be discharged smoothly, thereby improving the efficiency of drainage and exhaust, realizing the integration of exhaust and drainage, and improving the overall performance of the roof through reasonable layout and structural design.

[0028] 2. The multifunctional drainage and exhaust combined device for flat roofs of the present invention achieves the effect of a partitioned seam by setting a partitioned seam side plate on the top of the pipeline and filling it with permeable concrete. The partitioned seam is formed in one step without the need for later cutting, which reduces the impact on the construction site environment, greatly facilitates on-site construction, optimizes construction procedures, speeds up project progress, and improves project quality. At the same time, it helps to guide water flow. The permeable asphalt concrete material has good water permeability and accelerates the discharge of rainwater.

[0029] 3. The multifunctional drainage and exhaust assembly device for flat roofs of the present invention is composed of drainage and exhaust node components, which can be quickly assembled on site and adapt to fine stone concrete grids of different sizes. At the same time, it is more convenient to lay insulation boards in the grids, thereby improving the construction speed. The modular design makes maintenance and replacement of parts easier.

[0030] 4. The vertical vent pipes provided in this flat roof multifunctional drainage and exhaust combination device further optimize the exhaust performance. The vertical vent pipes can provide a direct channel for internal heat and moisture to be discharged more smoothly, thereby reducing moisture accumulation in the roof structure, avoiding possible damage caused by condensation, and promoting the natural flow of air, thereby improving exhaust efficiency.

[0031] 5. The pipe body provided by the multifunctional drainage and exhaust combination device for flat roofs adopts a pressure strip device that can fix the waterproof membrane at the lower outer side of the partition seam side plate, so as to avoid the problem of weak waterproofing at the closing point of the waterproof membrane. The closing point of the waterproof membrane is mechanically fixed with bolts, which can improve the waterproof sealing effect at the closing point.

[0032] 6. The top of the partitioned joint side plate provided by this flat roof multifunctional drainage and exhaust combination device can be used as the reference surface during the construction of fine stone concrete, effectively controlling the large-area concrete pouring completion surface. The formed fine stone concrete protective layer is divided by the partitioned joint rules, solving the problems of large dust caused by roof cutting in the later stage and easy cracks caused by untimely cutting, and improving the flatness and appearance quality of the fine stone concrete protective layer. BRIEF DESCRIPTION OF THE DRAWINGS

[0033] Figure 1 A top view of a long pipe of a drainage and exhaust node assembly according to an embodiment of the present invention;

[0034] Figure 2 This is a cross-sectional view of a drainage and exhaust node assembly according to an embodiment of the present invention;

[0035] Figure 3 A top view of a T-shaped pipe of a drainage and exhaust node assembly according to an embodiment of the present invention;

[0036] Figure 4 A top view of an L-shaped pipe of a drainage and exhaust node assembly according to an embodiment of the present invention;

[0037] Figure 5 A top view of a cross-shaped pipe of a drainage and exhaust node assembly according to an embodiment of the present invention;

[0038] Figure 6 It is a side view of a cross-shaped pipe of a drainage and exhaust node assembly according to an embodiment of the present invention;

[0039] Figure 7 The present invention is a flowchart of the construction method of the multifunctional drainage and exhaust assembly device for a flat roof according to an embodiment of the present invention.

[0040] In all the drawings, the same reference numerals represent the same technical features, specifically: 1-fixing gasket; 2-nails; 3-inner partition; 4-coil fixing strip; 5-fixing bolts; 6-perforated top plate; 7-perforated side plate; 8-partitioned seam side plate; 9-bottom plate; 10-reducing connection assembly; 11-ventilation pipe. DETAILED DESCRIPTION

[0041] In order to make the purpose, technical solutions and advantages of the present invention more clearly understood, the present invention is further described in detail below in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are only used to explain the present invention and are not intended to limit the present invention. In addition, the technical features involved in the various embodiments of the present invention described below can be combined with each other as long as they do not conflict with each other.

[0042] The present invention provides a multifunctional drainage and exhaust combination device for a flat roof, which is assembled by a series of drainage and exhaust node components and is used to be installed on a roof slope layer or a roof panel. The drainage and exhaust node components are formed into different shapes according to different positions of the roof, including T-type drainage and exhaust node components, L-type drainage and exhaust node components and cross-type drainage and exhaust node components, etc., which are respectively fixed on key control points (boundary T-type points, L-type corner points, cross intersections) on the roof slope layer or the roof panel. The drainage and exhaust node components are combined and assembled with each other to adapt to fine stone concrete grids of different sizes of grids.

[0043] The drainage and exhaust node assembly includes a pipe body, an inner partition 3 is provided in the inner cavity of the pipe body, and the inner partition 3 divides the inner cavity of the pipe into a drainage channel located at the bottom of the pipe and exhaust channels located on both sides of the drainage channel, which are independent of each other; an opening is provided at the top of the pipe to communicate with the drainage channel, and openings are provided on both sides of the pipe to communicate with the exhaust channel;

[0044] The drainage and exhaust node assembly also includes two partitioned seam side panels 8 arranged in the center of the top upper surface of the pipeline body. The partitioned seam side panels 8 are arranged at intervals and fixedly connected to the top of the pipeline body. A partitioned seam is formed between the two partitioned seam side panels 6. The partitioned seam and the drainage and exhaust channel formed by the lower component are in the same direction.

[0045] like Figure 1 As shown, the pipe body of the drainage and exhaust node assembly is a long tube with a rectangular end face, and the long tube is fixedly connected by a bottom plate 9, two perforated side plates 7 and a perforated top plate 6 to form a rectangular space extending in the length direction; two inner partitions 3 symmetrically installed in an "eight" shape are arranged inside the long tube, the upper edges of which are fixedly connected to the perforated top plate 6, and the lower edges of which are fixedly connected to the bottom plate 9, so as to divide the rectangular space of the long tube into two symmetrical exhaust channels and a drainage channel below;

[0046] The top of the long tube includes two partitioned seam side panels 8, which are spaced apart at the center of the upper surface of the perforated top plate 6 and fixedly connected to the perforated top plate 6. A partitioned seam is formed between the two partitioned seam side panels 8, and the partitioned seam and the channel formed by the lower component are in the same direction; the lower edge of the inner partition plate 8 is fixedly connected to the perforated side plate 7 at the connection between the perforated side plate 7 and the bottom plate 9.

[0047] like Figure 2 As shown, the perforated top plate 6 is provided with dense perforations within the range sandwiched by the two partition seam side plates 8, and forms a drainage channel with the two partition plates and the bottom plate. Rainwater flows into the partition seam and enters the drainage channel below through the perforations of the perforated top plate.

[0048] The perforated side plate 7 is provided with uniform perforations, which together with the inner partition plate 3 and the unperforated area of ​​the perforated top plate 6 form an exhaust channel. By utilizing the principle of natural convection, when the roof is heated, the internal air is heated, the density is reduced, and an ascending hot air flow is formed, which is discharged through the exhaust pipe, and cold air is sucked in from the air inlet at the same time, forming an air circulation, which is convenient for the moisture inside the roof to be discharged;

[0049] like Figure 3As shown, the pipe body of the drainage and exhaust node assembly is a T-tube with a rectangular end face, the partition seam side plate 8 forms a "T"-shaped partition seam on the top of the pipe body of the T-tube, and the inner partition plate 3 forms a drainage channel and an exhaust channel in the inner cavity of the pipe, and the drainage channel is in the same direction as the partition seam.

[0050] like Figure 4 As shown, the pipe body of the drainage and exhaust node assembly is an L-shaped pipe with a rectangular end face, and the partition seam side plate 8 forms an "L"-shaped partition seam on the top of the pipe body of the L-shaped pipe, and the inner partition plate 3 forms a drainage channel and an exhaust channel in the inner cavity of the pipe, and the drainage channel and the partition seam are in the same direction.

[0051] like Figure 5 As shown, the pipe body of the drainage and exhaust node assembly is a cross-shaped pipe with a rectangular end face, the partition seam side plate 8 forms a cross-shaped partition seam on the top of the pipe body of the cross-shaped pipe, and the inner partition plate 3 forms a drainage channel and an exhaust channel in the inner cavity of the pipe, and the drainage channel and the partition seam are in the same direction.

[0052] Specifically, the cross-shaped pipe body also includes a vent pipe 11, which is a vertically arranged tubular structure. The bottom of the vent pipe 11 is fixed to the center of the top of the cross-shaped pipe through a reducer connection assembly 10, and an opening that penetrates the exhaust channel and the vent pipe 11 is opened on the upper surface of the pipe body. The reducer connection assembly 10 is arranged at the inner angle of the intersection center of the two partition seams of the cross-shaped multifunctional drainage and exhaust node member, and its bottom is fixedly connected to the upper surface of the pipe body, and its two sides are fixedly connected to the two adjacent partition seam side plates, and its upper part is connected to the vent pipe 11 to form a hollow cavity, and the upper surface of the pipe body corresponding to the bottom of the hollow cavity has an opening; the other end of the vent pipe 11 is forked and bent to form two downwardly opening air outlets, and the gas in the ventilation channel enters the vent pipe 11 through the opening on the perforated top plate 6, and is discharged to the outside through the air outlet.

[0053] Furthermore, a coil material fixing strip 4 is provided on the outer side of the lower part of the partition seam side plate 8, the upper edge of the coil material fixing strip 4 is fixedly connected to the partition seam side plate 8, and the lower part is warped outward to form an arc-shaped curved portion, and fixing bolts 5 are provided on the arc-shaped curved portion at regular intervals for fixing the coil material fixing strip.

[0054] Furthermore, a fixing gasket 1 is extended along the left and right sides of the bottom of the pipe body, and the fixing gasket 1 is arranged at a certain interval along the bottom length direction of the pipe body. The nails 2 fix the drainage and exhaust node assembly to the roof slope layer or roof panel through the fixing gasket 1.

[0055] Furthermore, the exhaust channel is filled with large-void open-graded hard plastic particles, so that the pipeline can resist compression and deformation, and can effectively alleviate the roof surface runoff under heavy rain conditions, achieving a "sponge" roof effect.

[0056] In other optional embodiments, the pipeline body can also be a long tube with a circular end face, a T-shaped tube, an L-shaped tube, and a cross-shaped tube. According to the needs of the construction wall and the ground, the pipeline body can also be a special-shaped tube.

[0057] The working principle of the flat roof multifunctional drainage and exhaust combined device provided by the present invention is as follows: when rain falls on the roof, the protruding partition joint structure serves as a preliminary collection and guidance system for rainwater, ensuring that rainwater flows along a preset path, and the built-in permeable asphalt concrete material (with excellent water permeability) accelerates the penetration and discharge of rainwater, quickly absorbs the accumulated water on the roof surface and infiltrates into the drainage channel surrounded by the inner partition plate in the main body of the pipeline, and finally introduces it into the roof drainage ditch, thereby completing the entire drainage process. In order to enhance the waterproof effect, the waterproof coil is fixed by a coil fixing strip device arranged on the partition joint side plate at the top of the pipeline, which not only prevents rainwater from penetrating into the insulation layer, but also improves the sealing of the roof.

[0058] When the roof needs to be vented, the accumulated gas inside the insulation layer is introduced into the exhaust channel of the pipe body through the perforations on both sides of the pipe body. The channel is specially designed for the flow and discharge of gas. Then the gas passes through the reducer connection assembly of the cross-shaped node assembly into the vent pipe and finally discharged from the roof, thereby keeping the space under the roof dry and ventilated and preventing the accumulation of moisture and harmful gases. This design realizes an integrated exhaust and drainage function, which can work effectively whether it is rainy or when exhaust is needed.

[0059] The multifunctional drainage and exhaust combined device for flat roofs provided by the present invention sets the longitudinal and transverse pipes inside the insulation layer according to the spacing requirements of the partition seams, the exhaust channel and the drainage channel inside the pipe are separated from each other, a convex partition seam structure is set on the top of the pipe, and a bolt pressure strip device is used on the outside of the structure to fix the waterproof roll material to ensure that there is no rainwater infiltration into the insulation layer. At the same time, a permeable asphalt concrete material is built into the convex partition seam. On the other hand, a vertical ventilation pipe is set at the intersection of the longitudinal and transverse pipes, which solves the problems of large-area upright roof exhaust and drainage integration, large runoff in rainstorm conditions, inconvenience in walking, easy cracking due to untimely cutting of the seams in the later stage, and difficulty in leveling. The multifunctional drainage and exhaust combined device for flat roofs provided by the present invention has the following advantages: 1. By setting an inner partition inside the pipe body and providing dense perforations on the top and both sides of the pipe body, the drainage channel and the exhaust channel are isolated from each other, so that gas and moisture can flow in different channels respectively, which can reduce the accumulation of moisture in the insulation layer, and allow the gas to be discharged smoothly, improve the efficiency of drainage and exhaust, realize the integration of exhaust and drainage, and improve the overall performance of the roof through reasonable layout and structural design. 2. By setting the partition joint side plate on the top of the pipe and filling it with permeable concrete, the partition joint effect is achieved. The partition joint is formed at one time and does not need to be cut later, which reduces the impact on the construction site environment. It can greatly facilitate on-site construction, optimize the construction process, speed up the project progress, and improve the project quality. At the same time, it helps to guide the water flow. The permeable asphalt concrete material has good permeability and accelerates the discharge of rainwater. 3. It is composed of drainage and exhaust node components, which can be quickly assembled on site to adapt to the fine stone concrete grids of different sizes. At the same time, it can more conveniently lay insulation boards in the grids, improve the construction speed, and the modular design makes maintenance and replacement of parts easier. 4. The vertical ventilation pipe set further optimizes the exhaust performance. The vertical ventilation pipe can provide a direct channel for the internal heat and moisture to be discharged more smoothly, thereby reducing the accumulation of moisture in the roof structure, avoiding possible damage caused by condensation, and promoting the natural flow of air, thereby improving the exhaust efficiency. 5. The main body of the pipe provided uses a stripping device that can fix the waterproof membrane at the lower part of the outer side of the partition joint, avoiding the problem of weak waterproofing at the end of the waterproof membrane. The waterproof membrane is mechanically fixed with bolts to improve the waterproof sealing effect at the end. 6. The top of the partition joint side plate provided can be used as the reference surface during the construction of fine stone concrete, effectively controlling the large-area concrete pouring finish surface. The formed fine stone concrete protective layer is divided by the partition joint rules, solving the problems of large dust and easy cracks caused by untimely cutting of the roof in the later stage, and improving the flatness and appearance quality of the fine stone concrete protective layer.

[0060] The present invention provides a construction method of a flat roof multifunctional exhaust and drainage combined device, and the specific steps are as follows:

[0061] S100: Construction preparation: Ensure that the construction site has the necessary construction conditions, including material storage areas, tool and equipment placement areas, etc.; check whether the water supply and power supply pipelines meet the construction needs and ensure safety; investigate the surrounding environment to understand the factors that may affect the construction, such as weather and traffic; complete the construction of the roof slope layer according to the building design requirements to ensure smooth drainage; provide detailed technical briefings and safety education to construction personnel to ensure construction quality and safety.

[0062] S200: Measurement and layout: Determine the size and position of the expansion joints according to the design drawings and specifications; carry out detailed layout design on the building plan to ensure the reasonable layout of the expansion joints; lay out on site to ensure the accuracy of the control points, and spray-paint the key control points, cross intersections, L-shaped corners, and boundary T-points, and take reliable protection measures to prevent accidental damage during construction.

[0063] S300: Assembly of node components: Place "X"-shaped node components, "T"-shaped node components, and "L"-shaped node components according to the paint positioning points marked by the layout, use a level or other tools to adjust the elevation of the components to ensure flatness, and after adjustment, use a nail gun to fix each component on the slope layer or roof panel.

[0064] S400: Assembly of common parts: Place long tube common parts according to the fixed node parts and their positioning ink lines, and level them after placement to ensure the flatness and sealing of the joints. After leveling, use a nail gun to fix each component on the slope layer or roof panel in time.

[0065] S500: Insulation layer installation: Install insulation boards in each grid and ensure that the gaps between the insulation boards are filled with special materials to achieve a good insulation effect.

[0066] S600: Leveling layer construction: Construct cement mortar leveling layer in each grid. The drainage slope should be considered during the leveling layer construction to ensure that rainwater can be discharged smoothly.

[0067] S700: Waterproof layer construction: according to the design requirements and specifications, the waterproof membrane is spread, the membrane is cut at the partition joint, and the end is inserted into the fixed pressure strip, and then the fixing bolts are tightened and fixed, and then the sealing paste is used to seal to ensure the waterproof effect.

[0068] S800: Protective layer construction: Use the partition joint side plate as the side formwork, adopt the skip bin method to construct the fine stone concrete protective layer, and use the top of the partition joint side plate as the reference surface to directly control the elevation of the finished surface of the fine stone concrete in each bin.

[0069] The invention provides a construction method for a multifunctional exhaust and drainage combined device for a flat roof. The finished device is prefabricated and processed. After the on-site roof slope layer is constructed, the device is assembled on the roof and fixed in a pre-set position to ensure the sealing performance of the assembly node. After the fixing is completed, the insulation layer is laid, the leveling layer is constructed, and the waterproof roll is closed at the device when laying. The end of the roll is fixed with bolts on the partition joint device, and after fixing, the sealing material is used for sealing.

[0070] It will be easily understood by those skilled in the art that the above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent substitutions and improvements made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

Claims

1. A multifunctional drainage and exhaust assembly device for a flat roof, comprising at least one drainage and exhaust node assembly, Features: The drainage and exhaust node components are formed into different shapes according to different positions of the roof and are fixed to key control points on the roof slope layer or the roof panel; the drainage and exhaust node components are assembled and combined with each other to adapt to the fine stone concrete grids of different sizes; The drainage and exhaust node assembly comprises a pipe body, an inner partition (3) is provided in the inner cavity of the pipe body, and the inner partition (3) divides the inner cavity of the pipe into a drainage channel located at the bottom of the pipe and exhaust channels located on both sides of the drainage channel, which are independent of each other; an opening is provided at the top of the pipe and communicates with the drainage channel, and openings are provided on both sides of the pipe and communicate with the exhaust channel; The drainage and exhaust node assembly also includes two partitioned seam side plates (8) arranged at the center of the upper surface of the top of the pipeline body. The partitioned seam side plates (8) are arranged at intervals and are fixedly connected to the top of the pipeline body. A partitioned seam is formed between the two partitioned seam side plates (6). The partitioned seam and the drainage and exhaust channel formed by the lower component are in the same direction.

2. The multifunctional drainage and exhaust combined device for flat roofs according to claim 1, Features: The pipeline body is a long tube with a rectangular end surface, and the long tube is fixedly connected by a bottom plate (9), two perforated side plates (7) and a perforated top plate (6).

3. The multifunctional drainage and exhaust combined device for flat roofs according to claim 1, Features: The pipeline body is a T-shaped pipe with a rectangular end face, and the drainage channel is T-shaped.

4. The multifunctional drainage and exhaust combined device for flat roofs according to claim 1, Features: The pipeline body is an L-shaped pipe with a rectangular end face, and the drainage channel is L-shaped.

5. The multifunctional drainage and exhaust combined device for flat roofs according to claim 1, Features: The pipeline body is a cross-shaped pipe with a rectangular end face, and the drainage channel is cross-shaped.

6. The multifunctional drainage and exhaust combined device for flat roofs according to claim 5, Features: The pipe body of the cross-shaped pipe also includes a ventilation pipe (11), which is a vertically arranged tubular structure. The bottom of the ventilation pipe (11) is fixed to the center of the top of the cross-shaped pipe through a reducer connection component (10), and the upper part of the ventilation pipe (11) is forked and bent to form two air outlets opening downward; the upper surface of the pipe body is provided with an opening that penetrates the exhaust channel and the ventilation pipe (11).

7. The multifunctional drainage and exhaust combined device for flat roofs according to any one of claims 1 to 6, Features: A coiled material fixing strip (4) is provided on the outer side of the lower part of the partitioned seam side plate (8); the upper edge of the coiled material fixing strip (4) is fixedly connected to the partitioned seam side plate (8); the lower part is tilted outward to form an arc-shaped curved portion; fixing bolts (5) are provided on the arc-shaped curved portion at regular intervals for fixing the coiled material fixing strip.

8. The multifunctional drainage and exhaust combined device for flat roofs according to claim 7, Features: The bottom of the pipe body is provided with fixed gaskets (1) extending along the left and right sides. The fixed gaskets (1) are arranged at a certain interval along the length direction of the bottom of the pipe body. Nails (2) are passed through the fixed gaskets (1) to fix the drainage and exhaust node assembly to the roof slope layer or roof panel.

9. The multifunctional drainage and exhaust combined device for flat roofs according to claim 8, Features: The exhaust channel is filled with large-void open-graded hard plastic particles to provide the pipeline body with pressure resistance and deformation resistance.

10. A construction method for a flat roof multifunctional drainage and exhaust assembly device as claimed in any one of claims 1 to 9, Features: The specific steps are as follows: S100: Construction preparation: Ensure that the construction site has the necessary construction conditions, including material storage areas, tool and equipment placement areas, etc.; check whether the water supply and power supply pipelines meet the construction requirements and ensure safety; investigate the surrounding environment to understand the factors that may affect the construction, such as weather and traffic; complete the construction of the roof slope layer according to the architectural design requirements to ensure smooth drainage; provide detailed technical explanations and safety education to the construction personnel to ensure construction quality and safety; S200: Measurement and layout: Determine the size and position of the partition joints according to the design drawings and specification requirements; carry out detailed layout design on the building plan to ensure the reasonable layout of the partition joints; lay out the lines on site to ensure the accuracy of the control points, and spray paint the cross points, L-shaped corner points, and boundary T-shaped points of the key control points, and take reliable protection measures to prevent accidental damage during the construction process; S300: Node component assembly: Place "X"-shaped node components, "T"-shaped node components, and "L"-shaped node components according to the paint positioning points marked by the line, use a level or other tools to adjust the elevation of the components to ensure the flatness, and after the adjustment is completed, use a nail gun to fix each component on the slope layer or roof panel; S400: Assembly of common parts: Place long tube common parts according to the fixed node parts and their positioning ink lines, and level them after placement to ensure the flatness and sealing of the joints. After leveling, use a nail gun to fix each component on the slope layer or roof panel in time; S500: Insulation layer installation: Install insulation boards in each grid and ensure that the gaps in the insulation boards are filled with special materials to achieve a good insulation effect; S600: Leveling layer construction: Construct cement mortar leveling layer in each grid. The drainage slope should be considered during the leveling layer construction to ensure that rainwater can be discharged smoothly. S700: Waterproof layer construction: according to the design requirements and specifications, the waterproofing membrane is spread, the membrane is cut at the partition joint, and the end is inserted into the fixing strip, and then the fixing bolts are tightened and fixed, and then the sealing paste is used to seal to ensure the waterproof effect; S800: Protective layer construction: Use the partition joint side plate as the side formwork, adopt the skip bin method to construct the fine stone concrete protective layer, and use the top of the partition joint side plate as the reference surface to directly control the elevation of the finished surface of the fine stone concrete in each bin.

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