Novel pre-installed large-caliber self-heat-preservation steel water bucket for old house transformation

Abstract

The utility model discloses a novel pre-installed large-caliber self-heat-preservation steel water bucket for old house transformation, and relates to a roof drain construction structure in old house transformation. Comprising an old house outer wall (2), a roof drain (1) is installed on the old house outer wall, and a rear side plate of the roof drain extends leftwards and rightwards to form an installation plate; the rear side of the roof drain is attached to the surface of an old house outer wall, and the roof drain is fixed to the old house outer wall through expansion bolts arranged in mounting holes of the mounting plate. A baffle is arranged in the roof drain, a reserved heat preservation space is formed between the baffle and the rear side plate, and the reserved heat preservation space is filled with foaming heat preservation materials to form a heat preservation layer. An outer wall heat preservation layer is arranged on the outer surface of the old house outer wall, is in close fit with the outer surface of the rainwater hopper and is bonded with the rainwater hopper. The cold bridge phenomenon of roof drain construction caused by the fact that roof engineering and external thermal insulation engineering cannot be constructed at the same time in the special construction environment of an old renovation project is solved. And when water in the water bucket overflows to the heat preservation layer, the leakage risk of the heat preservation layer is increased.

Description

Technical Field

[0001] The utility model relates to an old house reconstruction construction technology, in particular to a rainwater gutter construction structure in the old house reconstruction. Background Art

[0002] During the construction of the old residential renovation project, the side-entry rainwater gutter (water dustpan) node in the roof structure has always been a major construction difficulty. During the construction process, there are original residents in the construction area. Due to the special construction environment of the old renovation project (the site is limited and the roofing project and external insulation project cannot be constructed at the same time), the following construction methods were previously used for this node, and all of them have shortcomings:

[0003] 1. If the roofing project is carried out first, the original side-entry rain gutter (water dustpan) will be replaced to ensure that the extended length meets the requirements. However, since the external insulation board is not pasted, the external water gutter is too far away from the wall and cannot be fixed. If temporary drainage is adopted, it cannot be fully enclosed, and there will be safety hazards when encountering heavy rain and stormy weather.

[0004] 2. If the roofing project is not constructed for the time being, the exterior wall insulation will be constructed first. Since the exterior wall insulation is pasted with 100mm insulation board, the original side-entry rain gutter (water dustpan) will not extend outward long enough. When the exterior wall rainwater pipe is installed, temporary drainage is required at the drain outlet. However, temporary drainage cannot guarantee smooth drainage. When it rains heavily, water enters the gaps in the polystyrene board, causing moisture on the wall.

[0005] 3. The two aforementioned construction methods present significant risks. Currently, a common method is to replace the existing side-entry rainwater scoops (water scoops) before the insulation work begins. This method replaces only the existing side-entry rainwater scoops (water scoops) without proceeding with the overall roofing work. Once the side-entry rainwater scoops (water scoops) are replaced, the waterproofing membrane in the area is connected to the existing roofing membrane. This approach shortens the construction period, allows the insulation work to begin earlier, and allows the external insulation and roof drainage systems in that location to be fully operational. However, this construction method still has drawbacks. Because the roofing work has not yet been completed, the height of the side-entry rainwater scoops (water scoops) cannot be determined. During roofing work, adjustments may be necessary due to height requirements. This requires additional external adjustments, resulting in secondary rework. During roofing work, all previously completed waterproofing must be removed, resulting in material waste. The connection between the new and old waterproofing materials cannot guarantee construction quality, increasing the risk of leakage. Furthermore, the area below is already inhabited, and if leakage occurs, the damage is irreversible.

[0006] The above construction method has another important defect: the rain gutter is installed before the insulation project is constructed, and there is no insulation layer at the rain gutter position, resulting in a cold bridge phenomenon; the existing gutter is only a square gutter structure. When the water volume on the roof is too large and the rainwater in the gutter overflows, the rainwater will overflow along the four sides of the gutter body, causing the rainwater to flow down the wall and flow to the insulation layer, increasing the risk of wall leakage.

[0007] In view of this, the present utility model is applied for. Utility Model Content

[0008] The utility model provides a pre-installed new large-diameter self-insulating steel rain gutter for renovation of old houses, so as to solve the problem that the roofing project and the external insulation project cannot be constructed at the same time in the special construction environment of the old renovation project, resulting in the cold bridge phenomenon during the construction of the rain gutter; and when the water in the rain gutter overflows, it will flow to the insulation layer, thereby increasing the risk of leakage of the insulation layer.

[0009] In order to solve the above problems, the utility model provides a pre-installed new large-caliber self-insulating steel water bucket for old house renovation, comprising an old house outer wall 2, a rain water bucket 1 is installed on the old house outer wall 2, the rain water bucket 1 is composed of a rear side plate 11, left and right side plates 12 and a front side plate 13 enclosed and welded, the rear side plate 11 of the rain water bucket 1 extends to the left and right sides to form a mounting plate 111, and the mounting plate 111 has a mounting hole; the rear side of the rain water bucket 1 is attached to the surface of the old house outer wall 2, and the rain water bucket 1 is fixed to the old house by an expansion bolt set in the mounting hole of the mounting plate 111 On the outer wall 2 of the house, there is sealant between the rain gutter and the outer wall of the old house; a baffle 16 is provided in the rain gutter 1, the baffle 16 is parallel to the rear side plate 11, the left and right edges and the lower edge of the baffle 16 are welded to the inner surface of the rain gutter 1, and a reserved insulation space 17 is formed between the baffle 16 and the rear side plate 11, and the reserved insulation space 17 is filled with foam insulation material 171 to form an insulation layer; an exterior wall insulation layer 21 is provided on the outer surface of the outer wall 2 of the old house, the exterior wall insulation layer 21 is tightly matched with the outer surface of the rain gutter 1, and the exterior wall insulation layer 21 is bonded to the rain gutter 1.

[0010] Furthermore, the pre-installed new large-caliber self-insulating steel water bucket for old house renovation of the present invention also has the following characteristics: the thickness of the insulation layer in the reserved insulation space 17 is the same as the thickness of the outer wall insulation layer 21.

[0011] Furthermore, the pre-installed new large-caliber self-insulating steel water bucket for old house renovation of the present invention also has the following characteristics: there are outward-turned edges 15 on the upper edges of the left and right side panels 12 and the front side panel 13.

[0012] Furthermore, the pre-installed new large-caliber self-insulating steel water bucket for old house renovation of the present invention also has the following characteristics: the height of the upper edge of the front side plate 13 is lower than the height of the left and right side plates 12 and the rear side plate 11.

[0013] Furthermore, the pre-installed new large-caliber self-insulating steel water bucket for old house renovation of the present invention also has the following characteristics: the height difference between the left and right side panels 12 and the front side panel 13 is 2-5 cm.

[0014] Technical effects of this utility model:

[0015] 1. Reserve insulation space in the rain gutter to form an insulation layer of the rain gutter, avoid the cold bridge phenomenon formed by the rain gutter in the renovation of old houses, and improve the insulation performance of the walls of old houses.

[0016] 2. Reduce project costs, shorten construction period, and ensure project quality.

[0017] 3. During the insulation construction phase, the rain gutter is installed at the water sieve of the original old house. The fixing method is expansion bolts and the side-entry rain gutter is used. The outer wall area behind the rain gutter is painted with sealant. After the installation is completed, the external insulation and rain drainage pipes below the gutter can be completed at one time, which improves the project efficiency and quality.

[0018] 4. For insulation of the exterior walls of old houses, 100mm polystyrene board is preferred. If the working surface is insufficient, 60mm extruded board can be used. The water funnel has an insulation layer of foam insulation material inside. After the above work is completed, install a new water dustpan and seal it. The sealing and insulation performance are good.

[0019] 5. Change the traditional rain gutter structure. The original square gutter, when the roof water volume is too large and causes the rainwater to overflow, the rainwater will overflow along the sides of the gutter, causing the rainwater to flow down the wall, increasing the risk of wall leakage. The gutter designed by the utility model has three outward-facing edges of 20mm. When rainwater overflows, it is easy to drip and prevent rainwater from flowing down the gutter body. In addition, the outermost side of the gutter is at least 20mm lower than the other three sides. When rainwater overflows, it will flow outward, preventing water from flowing into the insulation layer of the wall. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 It is a side sectional view of the rainwater bucket of the utility model;

[0021] Figure 2 This is a schematic diagram of the utility model rainwater gutter installed on the outer wall of an old house;

[0022] Figure 3 yes Figure 2 Schematic diagram of the construction of insulation layer on the rain gutter and the exterior wall of the old house;

[0023] Figure 4 It is a three-dimensional structural diagram of the rainwater bucket of the utility model.

[0024] Explanation of symbols in the figure: rain gutter 1, rear side panel 11, mounting plate 111, left and right side panels 12, front side panel 13, drainage pipe 14, outward edge 15, baffle 16, reserved insulation space 17, foam insulation material 171, old house exterior wall 2, exterior wall insulation layer 21, roof rainwater drainage pipe 3, downpipe 4. DETAILED DESCRIPTION

[0025] The present invention is described in detail with reference to the best embodiment below.

[0026] like Figure 1 、 2 As shown in , 3 and 4, a new type of pre-installed large-caliber self-insulating steel water bucket for old house renovation includes an old house outer wall 2, on which a rain water bucket 1 is installed. The rain water bucket 1 is welded together by a rear side plate 11, left and right side plates 12 and a front side plate 13. The bottom of the rain water bucket 1 is an inverted quadrangular structure. A drainage pipe 14 is welded to the bottom of the rain water bucket 1. The rear side plate 11 on the rear side of the rain water bucket 1 extends to the left and right sides to form a mounting plate 111, and there is a mounting hole on the mounting plate 111; the rear side of the rain water bucket 1 is attached to the old house outer wall 2. On the surface of the exterior wall 2 (where the rain gutter was originally installed), the rain gutter 1 is fixed to the old exterior wall 2 via expansion bolts set in the mounting holes of the mounting plate 111. Sealant is installed between the rain gutter and the old exterior wall. A baffle 16 is installed inside the rain gutter 1. The baffle 16 is parallel to the rear side plate 11. The left and right edges and the bottom edge of the baffle 16 are welded to the inner surface of the rain gutter 1. A reserved insulation space 17 is formed between the baffle 16 and the rear side plate 11. The reserved insulation space 17 is filled with foam insulation material 171 to form an insulation layer. An exterior wall insulation layer 21 is installed on the exterior surface of the old exterior wall 2. The exterior wall insulation layer 21 tightly fits the outer surface of the rain gutter 1 and the insulation layer above. The exterior wall insulation layer 21 is bonded to the rain gutter 1. The thickness of the insulation layer in the reserved insulation space 17 is the same as that of the exterior wall insulation layer 21.

[0027] like Figure 1 、 2 As shown, there are outward-turned edges 15 on the upper edges of the left and right side panels 12 and the front side panel 13. The height of the upper edge of the front side panel 13 is lower than that of the left and right side panels 12 and the rear side panel 11. The height difference between the left and right side panels 12 and the front side panel 13 is 2-5 cm. When heavy rain occurs, it facilitates drainage and prevents rainwater from flowing down the bucket body. When rainwater overflows, it flows out on the front side and avoids flowing into the insulation layer at the rear.

[0028] This method is suitable for old renovation and new construction projects that require the installation of side-entry rainwater gutters and external water gutters.

[0029] Process Principle: The core is to balance the construction of the nodes at the drainage outlets of the external insulation project and the roofing project. 1. The drainage system of the roofing project of the renovation project is divided into side-entry rainwater hoppers, external water hoppers, and external rainwater drainage pipes. This method changes the traditional form of the external water hopper. By changing the original size, internal structure, and fixing method, it can be installed before any stage of the roofing and insulation construction, and meets the necessary conditions of both roofing and insulation projects.

[0030] 2. During the construction phase of the insulation project or the roofing project, the hopper is placed at the original water scoop, fixed with expansion bolts and sealant is applied to the outer wall area behind the side-entry rain hopper. After installation, the external insulation and rain drainage pipes below the hopper can be installed at one time. When the roofing project is under construction, the original side-entry rain hopper is removed. Before removal, a receiving hopper is set on the upper part of the hopper and fixed to prevent the removed objects from falling.

[0031] 3. During the construction phase of the roofing project, after the original water dustpan is removed, the 10cm thick space reserved inside the water funnel shall be insulated. There are fixed points inside the water funnel for placing baffles. After installing the plug-in board, 100mm benzene board is the first choice for insulation. If the working surface is not enough, 60mm extruded board can be pasted and filled with foam. After the above work is completed, install a new water dustpan and seal it.

[0032] 4. The above approach can save the construction time occupied by drainage and secondary construction of the node, while also ensuring that the node has good integrity, high flatness, no residual garbage, and avoids the occurrence of hollowing.

[0033] To sum up, this construction method not only ensures quality while shortening the construction period, but also has great economic advantages. Through changes in the construction method and control of the process, the efficiency is significantly improved.

[0034] Construction process and operation points: 1. Technical explanation, laying of slope leveling layer, construction surface measurement and arrangement, division and layout of areas, technical explanation to construction teams and corresponding technical management personnel in advance, and arrangement of installation points according to the design drawings.

[0035] 2. Second on-site briefing: Before installation, the construction personnel need to be briefed twice on-site, and the principles of the process, layout points, and precautions during the construction process must be informed in detail to the construction personnel. The standardization of this method is reflected through refined management measures.

[0036] 3. Installation of pre-installed new large-diameter self-insulating steel scoops: During the insulation or roofing construction phase, the conditions for installing these pre-installed new large-diameter self-insulating steel scoops are already in place. Remove the existing external scoops according to the design drawings and install the new scoops. Secure the new scoops with φ8 expansion bolts and apply sealant to the contact surface between the scoop and the wall. Once the new scoops are installed, construction of the rainwater pipes and external insulation can begin.

[0037] 4. During the roof construction phase, the original water dustpan should be removed. Before removal, a receiving hopper should be set on the top of the water funnel and fixed to prevent the removed objects from falling. After the original water dustpan is removed, insulation should be applied to the cold bridge area where the water funnel contacts the wall. The 10cm space reserved inside the water funnel should be insulated. There are fixed points inside the water funnel where baffles can be placed. After installing the plug-in board, 100mm polystyrene board is the preferred insulation material. If the working surface is not enough, 60mm extruded board can be pasted and filled with foam. After the above work is completed, a new water dustpan should be installed and sealed.

Claims

1. A pre-installed new large-caliber self-insulating steel water bucket for renovation of old houses, comprising an outer wall of the old house (2), characterized in that: A rain gutter (1) is installed on the exterior wall (2) of the old house. The rain gutter (1) is formed by welding together a rear side plate (11), left and right side plates (12) and a front side plate (13). The rear side plate (11) of the rain gutter (1) extends to the left and right sides to form a mounting plate (111). The mounting plate (111) has mounting holes. The rear side of the rain gutter (1) is attached to the surface of the exterior wall (2) of the old house. The rain gutter (1) is fixed to the exterior wall (2) of the old house by expansion bolts arranged in the mounting holes of the mounting plate (111). There is sealant between the rain gutter and the exterior wall of the old house. 1) is provided with a baffle (16), the baffle (16) is parallel to the rear side plate (11), the left and right edges and the lower edge of the baffle (16) are welded to the inner surface of the rain gutter (1), a reserved insulation space (17) is formed between the baffle (16) and the rear side plate (11), and the reserved insulation space (17) is filled with a foam insulation material (171) to form an insulation layer; an external wall insulation layer (21) is provided on the outer surface of the external wall (2) of the old house, the external wall insulation layer (21) is closely matched with the outer surface of the rain gutter (1), and the external wall insulation layer (21) is bonded to the rain gutter (1).

2. The pre-installed new large-caliber self-insulating steel water bucket for old house renovation as claimed in claim 1 is characterized in that: The thickness of the insulation layer in the reserved insulation space (17) is the same as the thickness of the exterior wall insulation layer (21).

3. The pre-installed new large-caliber self-insulating steel water bucket for old house renovation as claimed in claim 1 is characterized in that: There are outward turning edges (15) on the upper edges of the left and right side plates (12) and the front side plate (13).

4. The pre-installed new large-caliber self-insulating steel water bucket for old house renovation as claimed in claim 3 is characterized in that: The height of the upper edge of the front side plate (13) is lower than the height of the left and right side plates (12) and the rear side plate (11).

5. The pre-installed new large-caliber self-insulating steel water bucket for old house renovation as claimed in claim 4 is characterized in that: The height difference between the left and right side panels (12) and the front side panel (13) is 2-5 cm.

Images