Segmented installation construction device for heat breaking bridge support of outer wall downpipe

Abstract

The utility model discloses a segmented installation construction device for an outer wall downpipe heat breaking bridge support, and relates to a downpipe installation structure in old building transformation. Comprising a concrete outer wall of an old house base layer structure and an outer wall insulation board used for transforming an old house. The hidden section support is arranged in the outer wall heat preservation plate, the inner end of the hidden section support is fixed to the surface of the concrete outer wall through the wall connecting assembly, and the exposed section support is used for fixing a water falling pipe. A wall connecting mounting plate of the wall connecting assembly is fixed on the concrete outer wall; the hidden section support is installed in the outer wall heat preservation plate in a hidden mode through the wall connecting assembly. And the exposed section bracket for clamping and fixing the downpipe is in threaded connection with the tail end of the supporting rod. The problems that the construction of the secondary structure of the upturning beam is time-consuming, labor-consuming and labor-consuming, the construction period is not shortened, and the water stopping effect is not ideal are solved.

Description

Technical Field

[0001] The utility model relates to the field of construction engineering, and particularly relates to a downpipe installation structure in the renovation of old buildings. Background Art

[0002] With the country's gradual attention to the living environment and housing quality of the people, a large number of renovation projects of old residential areas have emerged in recent years. At present, the renovation projects of old residential areas in this region mainly focus on the renovation of the roof system and external wall energy conservation of buildings. Most of the roof drainage methods in the renovation projects are organized drainage, and outdoor downpipes are set up. The renovation projects need to replace the downpipes. Most of the traditional installation of external wall downpipe brackets is carried out after the external wall insulation board is pasted by using an aerial lift truck for the installation of brackets and pipelines. It is easy to damage the insulation board, and the basic structural wall has been concealed. The quality risk of downpipe bracket installation increases, which increases the later maintenance workload, is time-consuming, laborious, costly in labor and materials, and is not conducive to shortening the construction period. The straight-line anchoring of the bracket wall connection component into the structural external wall is extremely likely to cause phenomena such as cold penetration of the old wall, mildew and condensation on the indoor wall at the bracket position, resulting in difficult problems in later repair. Summary of the Invention

[0003] The utility model provides a construction device for segmented installation of a heat-insulating bridge-breaking bracket for an external wall downpipe, which solves the problems of time-consuming, laborious and costly construction of the secondary structure of the up-turned beam, being not conducive to shortening the construction period, and unsatisfactory water-stop effect.

[0004] To solve the above problems, the utility model adopts the following technical scheme: A construction device for segmented installation of a heat-insulating bridge-breaking bracket for an external wall downpipe includes a concrete external wall 1 of the old house basic structure and an external wall insulation board 2 for renovating the old house; it also includes a hidden section bracket 3 arranged in the external wall insulation board 2, a wall connection component 4 for fixing the inner end of the hidden section bracket 3 to the surface of the concrete external wall 1, and an exposed section bracket 5 for fixing the downpipe.

[0005] The wall connection component 4 includes a heat-insulating cotton 41, a wall connection mounting plate 43 and an expansion bolt 44. An installation hole is drilled in the concrete external wall 1, and the heat-insulating cotton 41 is pasted at the position of the installation hole. The wall connection mounting plate 43 is arranged outside the heat-insulating cotton 41. The wall connection mounting plate 43 has a strip-shaped expansion bolt mounting hole 431 and a bracket mounting hole 432. The expansion bolt 44 passes through the expansion bolt mounting hole 431 of the wall connection mounting plate 43 and the heat-insulating cotton 41 and is fixed in the installation hole of the concrete external wall 1, thereby fixing the wall connection mounting plate 43 to the concrete external wall 1; the bolt head 31 at the end of the hidden section bracket 3 is arranged inside the wall connection mounting plate 43, the support rod 33 of the hidden section bracket 3 is arranged in the bracket mounting hole 432, and a nut 32 is arranged outside the wall connection mounting plate 43 and is threadedly connected with the support rod 33 to fix the support rod. The support rod 33 is hidden in the external wall insulation board 2, and the end of the support rod 33 extends outside the external wall insulation board 2.

[0006] The external leakage section bracket 5 for clamping and fixing the downspout is formed by docking a fixed semi-ring 51 and a detachable semi-ring 52 to form an annular structure. The docking position of the detachable semi-ring 52 and the fixed semi-ring 51 is fixed by a screw 54. A fixed nut 53 is fixed at the middle position on the outer side of the fixed semi-ring 51, and the fixed nut 53 is threadedly connected to the end of the support rod 33.

[0007] Furthermore, the sectional installation construction device for the external wall downspout heat insulation bridge bracket of the present utility model also has the following characteristics: there are strip holes corresponding to the installation holes on the heat insulation cotton 41, and nylon gaskets 42 are arranged outside each strip hole to block the strip holes.

[0008] Furthermore, the sectional installation construction device for the external wall downspout heat insulation bridge bracket of the present utility model also has the following characteristics: each wall connecting mounting plate 43 is fixed to the concrete external wall 1 by two expansion bolts 44, and a hidden section bracket 3 is arranged between the two expansion bolts 44.

[0009] Furthermore, the sectional installation construction device for the external wall downspout heat insulation bridge bracket of the present utility model also has the following characteristics: each wall connecting mounting plate 43 is fixed to the concrete external wall 1 by two expansion bolts 44, and a hidden section bracket 3 is arranged outside each of the two expansion bolts 44. The ends of the support rods 33 of the two hidden section brackets 3 are respectively connected to the screws 54 at the docking positions of the fixed semi-ring 51 and the detachable semi-ring 52.

[0010] The present utility model is applicable to the installation construction of the external wall downspout in the renovation of old houses and has the following advantages:

[0011] 1. During the construction of the external wall energy-saving renovation, the downspout brackets are installed by inserting through the external wall scaffold. Heat insulation bridge brackets are arranged at intervals from top to bottom at the downspout installation position, with accurate positioning, effectively shortening the construction period and saving costs.

[0012] 2. The downspout heat insulation bridge bracket wall connecting component is installed before the concealed construction of the insulation layer. The hidden section bracket is anchored to the concrete external wall through the wall connecting component, and problems at the anchoring end can be discovered and rectified in time, avoiding the quality risk situation of the later drilling bracket anchoring.

[0013] 3. The positions of the anchor bolts formed by the support rods of the brackets and the expansion bolts are staggered to slow down heat transfer; a heat insulation cotton layer and nylon gaskets are arranged between the brackets and the outer wall surface to form a "heat insulation bridge" effect, which well avoids the phenomenon of wall cold penetration, is beneficial to energy-saving renovation, and prevents the later quality repair problems.

[0014] 4. First, install some downspout brackets, and then paste the insulation board. The insulation layer is constructed successfully at one time without secondary drilling damage, avoiding the later repair of the insulation board, reducing the later additional repair workload, and avoiding the waste of materials. Description of the Drawings

[0015] Figure 1 is a schematic structural diagram of the first embodiment of the present utility model;

[0016] Figure 2 is Figure 1 a schematic diagram of the heat insulation bridge-breaking support for the downspout;

[0017] Figure 3 is Figure 2 a schematic diagram of the heat insulation cotton in

[0018] Figure 4 a schematic diagram of the nylon gasket in 2;

[0019] Figure 5 is Figure 2 a schematic diagram of the wall connecting mounting plate in

[0020] Figure 6 is Figure 2 a schematic diagram of the hidden section support in

[0021] Figure 7 is a schematic diagram of the heat insulation bridge-breaking support for the downspout in the second embodiment;

[0022] Figure 8 is a schematic diagram of the overall structure of the second embodiment.

[0023] Explanation of symbols in the figure: Concrete exterior wall 1, exterior wall insulation board 2, hidden section support 3, bolt head 31, nut 32, support rod 33, support nut 34, wall connecting assembly 4, heat insulation cotton 41, nylon gasket 42, wall connecting mounting plate 43, expansion bolt mounting hole 431, support mounting hole 432, expansion bolt 44, exposed section support 5, fixed half ring 51, detachable half ring 52, fixed nut 53, screw 54. Detailed implementation manners

[0024] The following uses the best embodiment to make a detailed description of the present utility model.

[0025] Embodiment 1

[0026] As Figures 1-6 shown, the segmented installation construction device for the heat insulation bridge-breaking support of the exterior wall downspout includes the concrete exterior wall 1 of the old house base structure and the exterior wall insulation board 2 for renovating the old house, and the exterior wall insulation board 2 is installed on the outer surface of the concrete exterior wall 1; it further includes a hidden section support 3 arranged in the exterior wall insulation board 2, a wall connecting assembly 4 for fixing the inner end of the hidden section support 3 to the surface of the concrete exterior wall 1, and an exposed section support 5 for fixing the downspout;

[0027] The wall connecting component 4 includes a heat insulation cotton 41, a nylon gasket 42, a wall connecting mounting plate 43 and an expansion bolt 44. Mounting holes are drilled in the concrete exterior wall 1, and the heat insulation cotton 41 is pasted at the positions of the mounting holes. The heat insulation cotton 41 is rectangular. The wall connecting mounting plate 43 is arranged outside the heat insulation cotton 41. The wall connecting mounting plate 43 is provided with a strip-shaped expansion bolt mounting hole 431 and a bracket mounting hole 432. The expansion bolt 44 passes through the expansion bolt mounting hole 431 of the wall connecting mounting plate 43 and the heat insulation cotton 41 and is fixed in the mounting hole of the concrete exterior wall 1, thereby fixing the wall connecting mounting plate 43 to the concrete exterior wall 1. Each wall connecting mounting plate 43 is fixed to the concrete exterior wall 1 by two expansion bolts 44; the bolt head 31 at the end of the hidden section bracket 3 is arranged inside the wall connecting mounting plate 43, the support rod 33 of the hidden section bracket 3 is arranged in the bracket mounting hole 432, and the nut 32 is arranged outside the wall connecting mounting plate 43 and is threadedly connected with the support rod 33 to fix the support rod. The support rod 33 is hidden in the exterior wall insulation board 2, and the end of the support rod 33 extends outside the exterior wall insulation board 2; the heat insulation cotton 41 is provided with strip-shaped holes corresponding to the positions of the mounting holes, and a nylon gasket 42 is arranged outside each strip-shaped hole. The strip-shaped hole is blocked by the nylon gasket 42, thereby playing a heat preservation role. The nylon gasket 42 is circular. Each wall connecting mounting plate 43 is fixed to the concrete exterior wall 1 by two expansion bolts 44, and a hidden section bracket 3 is arranged between the two expansion bolts 44.

[0028] The exposed section bracket 5 for clamping and fixing the downspout is formed by butting two semi-circular fixing half-rings 51 and a detachable half-ring 52 to form a circular structure. The butting position of the detachable half-ring 52 and the fixing half-ring 51 is fixed by a screw 54. A fixing nut 53 is fixed at the middle position outside the fixing half-ring 51, and the fixing nut 53 is threadedly connected with the end of the support rod 33.

[0029] A support nut 34 is threadedly connected to the hidden section bracket 3, and the support nut 34 abuts against the lower side of the fixing nut 53.

[0030] Embodiment Two

[0031] As Figures 7-8 shown, the difference between this embodiment and Embodiment One is that: each wall connecting mounting plate 43 is fixed to the concrete exterior wall 1 by two expansion bolts 44, and a hidden section bracket 3 is arranged outside each of the two expansion bolts 44. The ends of the support rods 33 of the two hidden section brackets 3 are respectively connected to the screw 54 at the butting position of the fixing half-ring 51 and the detachable half-ring 52.

[0032] Construction process principle:

[0033] During the construction of the external wall energy-saving renovation, the installation of the downspout support is carried out in segments. Heat insulation cotton is set between the anchor bolt position of the hidden support and the external wall to form the "heat insulation bridge" effect, effectively preventing the occurrence of cold penetration of the external wall; a circular nylon gasket is set between the position of the support close to the wall and the heat insulation cotton to prevent the iron support from damaging the heat insulation cotton after being stressed and ensure the heat insulation effect of the heat insulation cotton. The downspout support is installed in segments. Before pasting the insulation board, first install the anchor end of the support, the heat insulation layer, the connecting wall installation board of the transverse connecting wall assembly, and the support rod within the thickness range of the insulation layer, do a good job in protecting the support screw rod, carry out the construction of the insulation layer, and then connect the support screw rod and the pipe hoop of the downspout, and install the downspout from top to bottom.

[0034] The installation of the downspout support is carried out alternately with the construction of the external wall insulation layer, and the operation can be completed by using the external scaffolding, which not only shortens the construction period but also reduces the secondary investment in equipment and effectively controls the construction quality.

[0035] Construction process flow and operation key points:

[0036] 1. Process flow: Construction preparation → Wall base treatment → Measurement and positioning → Support anchor installation → Heat insulation cotton pasting → Hidden support installation → Support alignment and protection → Insulation layer pasting → Exposed support installation → Pipeline installation → Acceptance

[0037] 2. Operation key points: According to the complexity of the construction site, the construction personnel developed two types of connecting wall assembly supports for segmental installation of the downspout support according to the construction drawings and specification requirements, and operated in the following order:

[0038] 1) Wall base treatment

[0039] According to the design requirements of the energy-saving wall, remove the decorative layer of the renovated building wall, remove the loose plaster layer and repair it smoothly with 1:2.5 cement mortar, clean the dust on the external wall and apply the interface agent.

[0040] 2) Measurement and positioning

[0041] According to the design requirements, measure the position of the downspout, hang a plumb bob at the center position of the downspout to determine the center line of the downspout, and measure the position of the downspout support according to the design and specification requirements and the length of each section of the rainwater pipe. The spacing is generally 1200mm, and make marks.

[0042] 3) Installation of support anchor bolts

[0043] According to the marked support positions on the external wall measured in advance, and use the support bottom plate to lay out and determine the anchor bolt positions. Use an impact drill to drill holes, insert the anchor bolts after the holes are formed and fix the stud bolts. Most of the renovation projects are walls built with sintered clay bricks. 2 galvanized expansion bolts are used for the anchor bolts. If the base structure is a concrete structure, chemical anchor bolts are used, and the effect is better.

[0044] 4) Installation of heat insulation cotton

[0045] After the anchor bolts are fixed, take out the pre-cut heat insulation cotton (the size of the heat insulation cotton exceeds the bracket bottom plate by 50 mm on each side). The reflective side of the heat insulation cotton faces outward and is glued to the base wall with the self-adhesive bonding layer to ensure firm adhesion, horizontal and vertical, and the stud can extend out of the reserved hole of the heat insulation cotton, and the extension length meets the requirements.

[0046] 5) Installation of the concealed section bracket

[0047] Place a round nylon gasket on the stud extending out of the reserved hole of the heat insulation cotton to prevent damage to the heat insulation layer after the bracket is installed and ensure the heat insulation effect of the heat insulation cotton.

[0048] Take out the bracket connecting plate and support rod for assembly. The assembled bracket is placed on the anchor bolt for fixation, so that the center line of the support rod is directly opposite to the center line of the downspout. The connection is made by using nuts and studs for fastening, and it is required that the connection is firm and cannot be loosened. Before installing the concealed section bracket, according to the actual situation, pre-assembled brackets can be directly installed, or they can be installed separately according to the situation. The next wall connecting component can be installed only after passing the inspection.

[0049] 6) Bracket alignment and protection

[0050] After the installation of the wall connecting components in the concealed section is completed, in order to prevent the construction of the insulation layer from polluting the support rod of the bracket, a plastic nut sleeve is set at the top of the support rod for protection.

[0051] After the installation of each concealed section bracket of the downspout is completed, re-measure from top to bottom. Only after ensuring that its center position, spacing, depth length, quantity, etc. are all correct can the next process be constructed.

[0052] 7) Installation of the insulation layer

[0053] After the concealed section bracket is re-measured and qualified, the insulation layer is pasted according to the design requirements. When the insulation board meets the support rod of the downspout, it directly penetrates the insulation board without cutting or trimming the insulation board. During the construction of pasting the insulation layer, pay attention to the protection of the finished bracket, and it is strictly prohibited to knock and break the support rod of the bracket. If the thickness of the insulation layer exceeds the length of the support rod, replace the support rod bolt with a suitable length in time to ensure that the exposed length of the support rod is not less than 15 mm.

[0054] 8) Installation of the exposed section bracket

[0055] After the construction of the insulation layer is completed, take out the exposed section bracket connecting piece and pipe clamp, unscrew the plastic nut for protecting the support rod, and install the exposed section bracket. Hang a plumb line from the top bracket to the bottom bracket, position according to the plumb line, and install each exposed section bracket in turn to ensure that the brackets are on the same horizontal plane.

[0056] 9) Pipeline installation and fixation

[0057] When the construction conditions are met, transport the prefabricated riser pipes to the installation site. During pipeline installation, the vertical line, horizontal line and bottom elevation of the riser pipes should be accurate, based on the actual length of the pipes. After the positioning of each downspout is completed, fasten it with a pipe clamp to prevent the pipe from sliding. The pipeline is laid and installed firmly, the joints are straight, and the installed line is flat. The riser pipes are constructed from top to bottom. After the completion of each riser pipe joint, it should be immediately fixed firmly with a pipe coupling to prevent slipping, especially at the parts where the stress is concentrated, the fixation should be strengthened more.

[0058] Through engineering experiments, the use of the construction technology of segmental installation of the heat-insulating bridge support for the external wall downspout is flexible in construction, simple in operation, convenient in construction, material-saving, labor-saving, fast in construction speed, high in construction efficiency, ensures the project quality, reduces the construction cost, and has obvious economic benefits. Taking the construction of a renovation project of an old residential community as an example, it saves 2,300 yuan for construction material costs, 5,500 yuan for construction labor costs, 600 yuan for secondary construction material losses, 8,800 yuan for additional mechanical equipment costs, and 1,000 yuan for management fees, saving a total cost of about 18,200 yuan.

[0059] It is applicable to the installation construction of the external wall downspout support. During the construction of the external wall energy-saving renovation, the installation of the downspout support is carried out by interspersing with the external wall scaffolding, and the positioning is accurate, effectively shortening the construction period and saving costs.

[0060] There is no need to wait until the construction of the insulation board is completed before constructing the wall connection components. First, construct the wall connection components, which effectively shortens the construction period. It avoids the problem of fixing the wall connection components by drilling later. By prefabricating the wall connection components to fix the insulation board, it avoids the later repair of the insulation board, reduces the later repair workload, labor force, etc., and avoids the waste of materials.

[0061] Social benefits:

[0062] 1. During the construction of the external wall energy-saving renovation, the installation of the downspout support is carried out by interspersing with the external wall scaffolding, and the positioning is accurate, effectively shortening the construction period and saving costs.

[0063] 2. There is no need to wait until the construction of the insulation board is completed before constructing the wall connection components. First, construct the wall connection components, which effectively shortens the construction period. It avoids the problem of fixing the wall connection components by drilling later. By prefabricating the wall connection components to fix the insulation board, it avoids the later repair of the insulation board, reduces the later repair workload, labor force, etc., and avoids the waste of materials.

[0064] 3. The wall connection components and the external wall are treated with heat-insulating cotton to form a "heat-insulating bridge", effectively preventing the cold penetration phenomenon, being beneficial to energy conservation, and preventing later quality problems.

[0065] 4. It improves the project management level of our company and provides an effective means for optimizing on-site management.

[0066] 5. Form enterprise process standards, accumulate experience, and provide technical support.

Claims

1. A device for installing a thermal bridge bracket of an external wall downspout in sections, comprising a concrete external wall (1) of an old house base structure and an external wall insulation board (2) for renovating the old house; the device is characterized in that: It also includes a hidden section bracket (3) arranged in the exterior wall insulation board (2), a wall connecting component (4) for fixing the inner end of the hidden section bracket (3) to the surface of the concrete exterior wall (1), and an external leakage section bracket (5) for fixing the downpipe; The wall connection component (4) comprises a heat insulation cotton (41), a wall connection mounting plate (43) and an expansion bolt (44). A mounting hole is drilled on the concrete outer wall (1), and the heat insulation cotton (41) is pasted at the mounting hole. The wall connection mounting plate (43) is arranged on the outer side of the heat insulation cotton (41). The wall connection mounting plate (43) has a strip-shaped expansion bolt mounting hole (431) and a bracket mounting hole (432). The expansion bolt (44) passes through the expansion bolt mounting hole (431) of the wall connection mounting plate (43) and the heat insulation cotton (41) to be fixed to the concrete outer wall (1). The mounting hole is inserted into the wall mounting plate (43), thereby fixing the wall mounting plate (43) on the concrete outer wall (1); the bolt head (31) at the end of the hidden section bracket (3) is arranged on the inner side of the wall mounting plate (43); the support rod (33) of the hidden section bracket (3) is arranged in the bracket mounting hole (432); the nut (32) is arranged on the outer side of the wall mounting plate (43) and is threadedly connected to the support rod (33) to fix the support rod; the support rod (33) is hidden in the outer wall insulation board (2); and the end of the support rod (33) extends to the outside of the outer wall insulation board (2); The outer leakage section bracket (5) for clamping and fixing the downpipe is formed by butting a fixed half ring (51) and a detachable half ring (52) to form a circular ring structure. The butting position of the detachable half ring (52) and the fixed half ring (51) is fixed by a screw (54). A fixing nut (53) is fixed at the middle position outside the fixed half ring (51). The fixing nut (53) is threadedly connected to the end of the support rod (33).

2. The device for installing the thermal bridge bracket of the external wall downpipe in section according to claim 1 is characterized in that: The heat insulation cotton (41) is provided with strip holes corresponding to the positions of the mounting holes, and a nylon gasket (42) is arranged outside each strip hole to seal the strip hole.

3. The device for installing the thermal bridge bracket of the external wall downpipe in section according to claim 1 is characterized in that: Each wall-connecting mounting plate (43) is fixed to the concrete outer wall (1) via two expansion bolts (44), and a hidden section bracket (3) is arranged between the two expansion bolts (44).

4. The device for installing the thermal bridge-breaking bracket of the external wall downpipe in sections according to claim 1 is characterized in that: Each wall-connecting mounting plate (43) is fixed to the concrete outer wall (1) by means of two expansion bolts (44); a hidden section bracket (3) is provided outside each of the two expansion bolts (44); and the ends of the support rods (33) of the two hidden section brackets (3) are respectively connected to screws (54) at the docking positions of the fixed half ring (51) and the detachable half ring (52).

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