Outer wall through-wall hole plugging structure and method

Abstract

According to the outer wall through-wall hole plugging structure and method, a through-wall hole and a grouting channel are reserved in an outer wall body, continuous rabbets are formed in the left side, the right side and the upper side of an outer end opening of the through-wall hole, one end of the grouting channel is formed in the inner wall of the outer wall body and located above the through-wall hole, and the other end of the grouting channel extends and communicates with the top face of the through-wall hole; the plugging assembly comprises an outer formwork, an inner formwork, an opposite-pulling iron wire and a back supporting rod, one end of the opposite-pulling iron wire is fixedly connected to the middle area of the inner side of the outer formwork, the other end of the opposite-pulling iron wire penetrates through the inner formwork, and the outer formwork can obliquely penetrate through the through-wall hole and then is pulled by the opposite-pulling iron wire to return to be clamped on the tongue-and-groove to plug the outer end opening of the through-wall hole. The inner formwork is used for being attached to the inner wall of an outer wall body to block inner end openings of the through-wall holes, the back supporting rods are used for being attached to the outer sides of the inner formwork of the through-wall holes along the line, and the opposite-pulling iron wires are used for being pulled and fixed to the back supporting rods so that the outer formwork and the inner formwork can be oppositely pulled and fastened. The construction method avoids the potential safety hazard of dismounting the outer template in the hanging basket construction, and avoids the potential leakage hazard.

Description

Technical Field

[0001] The invention relates to blocking an external wall through-wall hole, and in particular to a blocking structure and method for an external wall through-wall hole. Background Art

[0002] The wall holes reserved on the exterior walls of buildings need to be sealed. For example, a large number of wall holes will be reserved on the exterior walls of buildings at the cantilevered layer for the cantilevered steel beams to pass through. When the cantilevered construction is completed, the cantilevered steel beams must be recovered and the wall holes must be sealed. Otherwise, rainwater, debris, and noise outside the house will invade the house.

[0003] At present, the method for sealing the through-wall openings in the exterior wall is generally to first use formwork (steel formwork or wooden formwork) to support the inside and outside, then pour concrete, and then wait until the later stage of exterior wall decoration to remove the external formwork through hanging basket construction.

[0004] The existing blocking methods have the following problems: 1) When the outer formwork is removed through the hanging basket construction, falling objects may occur, which poses a very high safety hazard; 2) Since the wall hole is small, it is difficult to ensure the density when pouring concrete through the triangular groove of the inner formwork, and there is a risk of leakage. Summary of the invention

[0005] The purpose of the present invention is to provide a sealing structure for an external wall through-wall hole and a sealing method for an external wall through-wall hole. In the present application, there is no need to remove the external formwork, thereby avoiding the safety hazard of removing the external formwork during hanging basket construction; grouting from the top of the through-wall hole can ensure the density and avoid the risk of leakage.

[0006] The technical solution adopted by the present invention is: A plugging structure for an external wall through-wall opening comprises an external wall body and a plugging assembly; a through-wall opening and a grouting channel are reserved on the external wall body, the bottom surface of the through-wall opening is located on the top surface of the floor slab, and a continuous tongue and groove are provided on the left and right sides and the top of the external port, one end of the grouting channel is opened on the inner wall of the external wall and is located near the top of the through-wall opening, and the other end extends and is connected to the top surface of the through-wall opening; the plugging assembly comprises an external formwork, an internal formwork, a tie wire and a back-support rod, one end of the tie wire is fixedly connected to the middle area inside the external formwork, and the other end passes through the internal formwork, the external formwork can first be tilted to pass through the through-wall opening and then pulled back by the tie wire to be stuck on the tongue and groove to plug the external port of the through-wall opening, the internal formwork is used to be attached to the inner wall of the external wall to plug the internal port of the through-wall opening, the back-support rod is used to be attached to the outside of the inner formwork of each through-wall opening along the line, and the tie wire is used to be tied and fixed on the back-support rod to pull the external formwork and the internal formwork against each other and tighten.

[0007] Preferably, a steel mesh is arranged inside the outer formwork and concrete is arranged outside, and the ends of the tension wires are connected to the steel mesh.

[0008] Preferably, there is a certain gap between the edge of the outer template and the edge of the tongue and groove.

[0009] Preferably, the inner side surface of the outer template is roughened, and the inner edges of the outer template and the inner template are both provided with a circle of sealing strips.

[0010] A method for sealing an external wall through-hole opening comprises the following steps: firstly, when constructing the external wall, a through-hole opening and a grouting channel are reserved on the external wall; the bottom surface of the through-hole opening is located on the top surface of the floor slab, and a continuous tongue and groove is provided on the left and right sides and the top of the external port; one end of the grouting channel is opened on the inner wall of the external wall and is located near the top of the through-hole opening, and the other end extends and is connected to the top surface of the through-hole opening; after the external wall construction is completed, a set of external formwork, internal formwork and tie wires are arranged for each through-hole opening; the through-hole openings on the same layer share a back support rod; one end of the tie wire is fixedly connected to the middle area inside the external formwork, and the other end passes through the internal formwork First, tilt the outer formwork through the wall hole, then pull the tension wire to make the outer formwork return to the right position and stick it on the tongue and groove to seal the outer end of the wall hole, then stick the inner formwork to the inner wall of the outer wall to seal the inner end of the wall hole, then stick the back support rod to the outside of the inner formwork of each wall hole along the line, then tie the tension wire to the back support rod to tighten the outer formwork and the inner formwork, then grouting from the top of the wall hole through the grouting channel until concrete overflows from the grouting channel; after the concrete at the wall hole reaches a certain strength, remove the back support rod and the inner formwork, and cut off the excess tension wire.

[0011] Preferably, when constructing the outer wall, a sleeve is arranged at the position of the wall hole, and a pipe is arranged at the position of the grouting channel. Continuous flanges are provided on the left and right sides and the top of the outer end of the sleeve. The two end surfaces of the sleeve are respectively located at the designed positions of the inner and outer walls of the outer wall. One end of the pipe is located at the designed position of the inner wall of the outer wall, and the other end extends to the outside of the top surface of the sleeve and is tightly pressed. After the outer wall is constructed, the sleeve is removed to form the wall hole, and the pipe is left to form the grouting channel.

[0012] Preferably, when installing the outer formwork, first push the outer formwork with one hand to tilt it through the wall hole, and hold the tension wire with the other hand but move it forward. When the outer formwork completely exceeds the outer port of the wall hole, rotate the outer formwork to a suitable angle with one hand, and hold and pull the tension wire with the other hand to make the outer formwork return to the original position and get stuck on the tongue and groove, thereby blocking the outer port of the wall hole.

[0013] Preferably, a steel mesh is arranged inside the outer formwork and concrete is arranged outside, and the ends of the tension wires are connected to the steel mesh.

[0014] Preferably, there is a certain gap between the edge of the outer template and the tongue and groove.

[0015] Preferably, the inner side surface of the outer template is roughened, and the inner edges of the outer template and the inner template are both provided with a circle of sealing strips.

[0016] The beneficial effects of the present invention are: In the present application, after the sealing is completed, the outer formwork serves as a part of the outer wall surface of the outer wall, and there is no need to remove the outer formwork, thus avoiding the safety hazard of removing the outer formwork during hanging basket construction; in the present application, grouting from the top of the wall opening can ensure the density and avoid the risk of leakage. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 It is a schematic diagram of the installation of the outer wall and the blocking assembly in the present invention.

[0018] Figure 2 It is a structural schematic diagram of the exterior wall in the present invention.

[0019] Figure 3 It is a front view of the exterior wall of the present invention.

[0020] Figure 4 It is a schematic diagram of the blocking component in the present invention.

[0021] In the figure: 1-external wall; 2-grouting channel; 3-wall opening; 4-back support rod; 5-inner formwork; 6-outer formwork; 7-tension wire; 8-tongue and groove; 9-reinforcement mesh. DETAILED DESCRIPTION

[0022] The present application is further described below in conjunction with the accompanying drawings and embodiments.

[0023] Embodiment 1 This embodiment discloses a sealing structure for an external wall through-wall opening, such as Figure 1 As shown, it includes an outer wall 1 and a blocking component; Figure 2 and Figure 3 As shown, a through-wall opening 3 and a grouting channel 2 are reserved on the outer wall 1. The bottom surface of the through-wall opening 3 is located on the top surface of the floor slab, and a continuous tongue and groove 8 is provided on the left and right sides and the top of the outer port. One end of the grouting channel 2 is opened on the inner wall of the outer wall 1 and is located near the top of the through-wall opening 3, and the other end extends and is connected to the top surface of the through-wall opening 3; Figure 1 and Figure 4As shown, the plugging assembly includes an outer template, an outer template 6, a tie wire 7 and a back support rod 4. One end of the tie wire 7 is fixedly connected to the middle area inside the outer template, and the other end passes through the outer template 6. The outer template can first be tilted through the wall hole 3 and then pulled back by the tie wire 7 to be stuck on the tongue and groove 8 to block the outer end of the wall hole 3. The outer template 6 is used to be attached to the inner wall of the outer wall 1 to block the inner end of the wall hole 3. The back support rod 4 is used to be attached to the outer side of the outer template 6 of each wall hole 3 along the line. The tie wire 7 is used to tie and fix on the back support rod 4 so as to tighten the outer template and the outer template 6. In this embodiment, after the plugging is completed, the outer template is used as a part of the outer wall surface of the outer wall 1. There is no need to remove the outer template, which avoids the safety hazard of removing the outer template during the hanging basket construction; in this embodiment, grouting from the top of the wall hole 3 can ensure the density and avoid the leakage hazard.

[0024] In this embodiment, preferably, Figure 4 As shown, a steel mesh 9 is arranged inside the outer formwork and concrete is arranged outside, and the ends of the tension wires 7 are connected to the steel mesh 9, which not only ensures the strength of the outer formwork itself so that it has sufficient strength as an outer wall surface, but also ensures the connection strength between the tension wires 7 and the outer formwork, which can withstand the pulling and tensioning force of the tension wires 7.

[0025] In this embodiment, preferably, there is a certain gap between the edge of the outer template and the tongue and groove 8 to avoid construction errors that cause the outer template to be unable to fit into the tongue and groove 8 .

[0026] In this embodiment, preferably, the inner side surface of the outer template is roughened, and the inner edges of the outer template and the outer template 6 are provided with a circle of sealing strips (such as foam strips). The roughening can improve the bonding degree of the grouting at the interface, and the sealing strip can prevent the grouting from overflowing from the edge.

[0027] Embodiment 2 This embodiment discloses a method for sealing an external wall through-wall opening 3, comprising the following steps: 1) When constructing the outer wall 1, a through-wall opening 3 and a grouting channel 2 are reserved on the outer wall 1. The bottom surface of the through-wall opening 3 is located on the top surface of the floor slab, and a continuous tongue and groove 8 is provided on the left and right sides and the top of the outer end. One end of the grouting channel 2 is opened on the inner wall of the outer wall 1 and is located near the top of the through-wall opening 3, and the other end extends and is connected to the top surface of the through-wall opening 3.

[0028] Wherein: when constructing the outer wall 1, a sleeve is arranged at the position of the through-wall opening 3, and a pipe is arranged at the position of the grouting channel 2. Continuous flanges are arranged on the left and right sides and the upper side of the outer end of the sleeve. The two end surfaces of the sleeve are respectively located at the designed positions of the inner and outer walls of the outer wall 1. One end of the pipe is located at the designed position of the inner wall of the outer wall 1, and the other end extends to the outside of the top surface of the sleeve and is tightly pressed. After the outer wall 1 is constructed, the sleeve is removed to form the through-wall opening 3, and the pipe is left to form the grouting channel 2.

[0029] 2) After the construction of the outer wall 1 is completed, each through-wall opening 3 is arranged with a set of outer formwork, outer formwork 6 and tie wire 7. The through-wall openings 3 on the same layer share a back-support rod 4. One end of the tie wire 7 is fixedly connected to the middle area inside the outer formwork, and the other end passes through the outer formwork 6. The outer formwork is first tilted to pass through the through-wall opening 3, and then the tie wire 7 is pulled to make the outer formwork return to the center and clamp it on the tongue and groove 8 to block the outer end of the through-wall opening 3. Then the outer formwork 6 is attached to the inner wall of the outer wall 1 to block the inner end of the through-wall opening 3. Then the back-support rod 4 is attached to the outer side of the outer formwork 6 of each through-wall opening 3 along the line. Then the tie wire 7 is tied and fixed to the back-support rod 4 to tighten the outer formwork and the outer formwork 6. Then grouting is carried out from the top of the through-wall opening 3 through the grouting channel 2 until concrete overflows from the grouting channel 2 and stops.

[0030] Among them: when installing the outer template, first push the outer template with one hand to tilt it through the wall hole 3, and hold the tension wire 7 with the other hand but move it forward. When the outer template completely exceeds the outer end of the wall hole 3, rotate the outer template to a suitable angle with one hand, and hold and pull the tension wire 7 with the other hand to make the outer template return to the center and get stuck on the tongue and groove 8, thereby blocking the outer end of the wall hole 3. It can be operated by one person with both hands, and the tension wire 7 can be used as a safety to prevent the outer template from falling.

[0031] 3) After the concrete of the wall opening 3 reaches a certain strength, remove the back support rod 4 and the outer formwork 6, and cut off the excess tension wire 7.

[0032] In this embodiment, after the sealing is completed, the outer formwork serves as a part of the outer wall surface of the outer wall body 1, and there is no need to remove the outer formwork, thereby avoiding the safety hazard of removing the outer formwork during hanging basket construction; in this embodiment, grouting is performed from the top of the wall opening 3 to ensure density and avoid leakage hazards.

[0033] In this embodiment, preferably, Figure 4 As shown, a steel mesh 9 is arranged inside the outer formwork and concrete is arranged outside, and the ends of the tension wires 7 are connected to the steel mesh 9, which not only ensures the strength of the outer formwork itself so that it has sufficient strength as an outer wall surface, but also ensures the connection strength between the tension wires 7 and the outer formwork, which can withstand the pulling and tensioning force of the tension wires 7.

[0034] In this embodiment, preferably, there is a certain gap between the edge of the outer template and the tongue and groove 8 to avoid construction errors that cause the outer template to be unable to fit into the tongue and groove 8 .

[0035] In this embodiment, preferably, the inner side surface of the outer template is roughened, and the inner edges of the outer template and the outer template 6 are provided with a circle of sealing strips (such as foam strips). The roughening can improve the bonding degree of the grouting at the interface, and the sealing strip can prevent the grouting from overflowing from the edge.

[0036] The embodiments described above are part of the embodiments of the present application, rather than all of the embodiments. The detailed description of the embodiments of the present application is not intended to limit the scope of the present application for protection, but merely represents the selected embodiments of the present application. Based on the embodiments in the present application, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present application.

Claims

1. An external wall through-wall opening blocking structure, characterized in that: It comprises an outer wall and a plugging component; a through-wall hole and a grouting channel are reserved on the outer wall; the bottom surface of the through-wall hole is on the top surface of the floor slab, and a continuous tongue and groove is provided on the left and right sides and the top of the outer port; one end of the grouting channel is opened on the inner wall of the outer wall and is located near the top of the through-wall hole, and the other end extends and is connected to the top surface of the through-wall hole; the plugging component comprises an outer formwork, an inner formwork, a tie wire and a back-support rod; one end of the tie wire is fixedly connected to the middle area inside the outer formwork, and the other end passes through the inner formwork; the outer formwork can first be tilted through the through-wall hole and then pulled back by the tie wire to be stuck on the tongue and groove and the outer port of the through-wall hole is blocked; the inner formwork is used to be attached to the inner wall of the outer wall to block the inner port of the through-wall hole; the back-support rod is used to be attached to the outer side of the inner formwork of each through-wall hole along the line; the tie wire is used to be tied and fixed on the back-support rod so as to tighten the outer formwork and the inner formwork.

2. The external wall hole blocking structure according to claim 1, characterized in that: The interior of the outer formwork is provided with a steel mesh and the exterior is provided with concrete, and the ends of the tension wires are connected to the steel mesh.

3. The external wall hole blocking structure according to claim 1, characterized in that: There is a certain gap between the edge of the outer template and the edge of the tongue and groove.

4. The external wall through-hole blocking structure according to claim 1, characterized in that: The inner side of the outer formwork is roughened, and a circle of sealing strips is provided on the inner edges of the outer formwork and the inner formwork.

5. A method for sealing an external wall hole, characterized in that: First, when constructing the outer wall, a through-wall opening and a grouting channel are reserved on the outer wall. The bottom surface of the through-wall opening is on the top surface of the floor slab, and a continuous tongue and groove is provided on the left and right sides and the top of the outer port. One end of the grouting channel is opened on the inner wall of the outer wall and is located near the top of the through-wall opening, and the other end extends and is connected to the top surface of the through-wall opening. After the construction of the outer wall is completed, each through-wall opening is arranged with a set of outer formwork, inner formwork and tie wire. The through-wall openings on the same layer share a back support rod. One end of the tie wire is fixedly connected to the middle area inside the outer formwork, and the other end passes through the inner formwork. First, the outer formwork is tilted. Pass the outer formwork diagonally through the wall opening and then pull the tension wire to make the outer formwork return to the right position and get stuck on the tongue and groove to seal the outer end of the wall opening. Then stick the inner formwork on the inner wall of the outer wall to seal the inner end of the wall opening. Then stick the back support rod on the outer side of the inner formwork of each wall opening along the line. Then tie the tension wire to the back support rod to tighten the outer formwork and the inner formwork. Then inject grout from the top of the wall opening through the grouting channel until concrete overflows from the grouting channel. After the concrete at the wall opening reaches a certain strength, remove the back support rod and the inner formwork, and cut off the excess tension wire.

6. The method for sealing an external wall hole according to claim 5, characterized in that: When constructing the outer wall, a sleeve is set at the position of the wall hole, and a pipe is set at the position of the grouting channel. Continuous flanges are provided on the left and right sides and the top of the outer end of the sleeve. The two end surfaces of the sleeve are respectively located at the designed positions of the inner and outer walls of the outer wall. One end of the pipe is located at the designed position of the inner wall of the outer wall, and the other end extends to the outside of the top surface of the sleeve and is tightly pressed. After the construction of the outer wall, the sleeve is removed to form the wall hole, and the pipe is left to form the grouting channel.

7. The method for sealing an external wall hole according to claim 5, characterized in that: When installing the outer formwork, first push the outer formwork with one hand to tilt it through the wall hole, and hold the tie wire with the other hand but move it forward. When the outer formwork completely exceeds the outer end of the wall hole, rotate the outer formwork to the appropriate angle with one hand, and hold and pull the tie wire with the other hand to make the outer formwork return to the original position and get stuck on the tongue and groove, thereby blocking the outer end of the wall hole.

8. The method for sealing an external wall hole according to claim 5, characterized in that: The interior of the outer formwork is provided with a steel mesh and the exterior is provided with concrete, and the ends of the tension wires are connected to the steel mesh.

9. The method for sealing an external wall hole according to claim 5, characterized in that: There is a certain gap between the edge of the outer template and the tongue and groove.

10. The method for sealing an external wall hole according to claim 5, characterized in that: The inner side of the outer formwork is roughened, and a circle of sealing strips is provided on the inner edges of the outer formwork and the inner formwork.

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