Bolt hole sealing device and sealing method for cast-in-place integrated insulation board

Abstract

The present invention provides a bolt hole plugging device and a plugging method for a cast-in-place integrated thermal insulation board, the plugging device comprising: a retractable end plugging piece, the end plugging piece passes through the bolt hole when retracted, and the end plugging piece blocks one end of the bolt hole when expanded, and a first clamping structure is formed on one side of the end plugging piece; a grouting pipe, the end of the grouting pipe is provided with a second clamping structure, and the second clamping structure and the first clamping structure are mutually engaged. The present invention can plug the bolt holes on the inner side of the wall during the main structure construction stage to prevent the bolt holes from being left for too long and causing rainwater to penetrate, thereby affecting the thermal insulation effect, while avoiding the defects of high risk, low efficiency and high cost caused by high-altitude plugging on the outer side of the wall.

Description

Technical Field

[0001] The invention relates to the technical field of building construction, and in particular to a bolt hole plugging device and a plugging method for a cast-in-place integrated insulation board. Background Art

[0002] At present, prefabricated buildings are becoming increasingly popular, and more and more projects use cast-in-place integrated insulation, that is, the exterior wall insulation is constructed simultaneously during the main structure construction stage. However, after the insulation is completed with the structure construction, tension bolt holes will be left. The traditional sealing technology is to use high-altitude operations such as hanging baskets to seal the bolt holes on the outside of the exterior wall during the exterior decoration construction stage. If the sealing is not timely, it is very easy for rainwater to penetrate into the insulation board, causing damage to the finished product and causing losses; and sealing on the outside is a high-altitude operation, which increases the rental time and cost of the hanging basket or climbing frame, is very dangerous, and the operation is greatly affected by the weather, and the construction efficiency is low. Summary of the invention

[0003] In view of the above situation, the present invention provides a cast-in-place integrated insulation board bolt hole plugging device and plugging method, which are easy to construct and do not require the establishment of facilities such as hanging baskets or climbing frames on the outside of the wall. The device solves the defects of the existing high-altitude plugging of bolt holes, which is time-consuming, labor-intensive, costly, dangerous and has low construction efficiency. By clamping the grouting pipe and the end plugging piece, the end plugging piece is pushed from the end of the bolt hole close to the room to the end of the bolt hole close to the outside, and then the connection between the end plugging piece and the grouting pipe is cancelled, and then grouting plugging is performed. The construction is convenient and efficient, and can effectively save time and construction costs.

[0004] In order to achieve the above-mentioned purpose, the technical solution adopted by the present invention is: to provide a bolt hole plugging device for a cast-in-place integrated insulation board, comprising:

[0005] A retractable end plugging piece, which passes through the bolt hole when retracted and blocks one end of the bolt hole when expanded, and a first clamping structure is formed on one side of the end plugging piece;

[0006] A grouting pipe, wherein a second clamping structure is disposed at the end of the grouting pipe, and the second clamping structure and the first clamping structure are clamped with each other.

[0007] In an embodiment of the present invention, the end sealing member comprises a cylinder with openings at both ends and a sealing plate covering the first end opening, and the outer edge of the sealing plate extends out of the outer wall of the cylinder to form a retractable portion.

[0008] In the embodiment of the present invention, the blocking plate is a flexible plate, and the outer diameter of the blocking plate is larger than the inner diameter of the bolt hole.

[0009] In the embodiment of the present invention, the blocking plate is provided with gaps at intervals, and the gaps are located at the outer edge of the blocking plate.

[0010] In an embodiment of the present invention, the first clamping structure is a limit plate fixed to the second end opening of the cylinder, a strip groove is provided in the middle of the limit plate for the second clamping structure to be inserted, and the second clamping structure is a strip block whose shape matches the strip groove.

[0011] In the embodiment of the present invention, it further comprises an elastic tail wing fixed on the cylinder at intervals, and one end of the elastic tail wing away from the cylinder abuts against the inner wall of the bolt hole.

[0012] The present invention further provides a method for plugging bolt holes of a cast-in-place integrated insulation board, comprising the following steps:

[0013] Providing a retractable end blocking piece, wherein a first clamping structure is formed on one side of the end blocking piece;

[0014] Providing a grouting pipe, wherein the end of the grouting pipe is provided with a second clamping structure;

[0015] The first clamping structure and the second clamping structure are clamped together to connect the end plugging member to the head of the grouting pipe;

[0016] Pushing the grouting pipe with the end plugging piece connected to the head along the bolt hole from the indoor side to the outdoor side of the wall, the end plugging piece is squeezed and contracted by the inner wall of the bolt hole when being pushed in the bolt hole, and the end plugging piece is expanded when being pushed to the outdoor side;

[0017] Pulling back the grouting pipe, the expanded end plugging piece plugs one end of the bolt hole and is positioned inside the one end of the bolt hole;

[0018] Release the clamping relationship between the second clamping structure and the first clamping structure, inject grout into the grouting pipe, the slurry in the grouting pipe flows out from the head of the grouting pipe and fills the bolt hole, pull the grouting pipe toward the indoor side, the slurry is filled from the end of the bolt hole close to the outdoor side to the end of the bolt hole close to the indoor side, and the bolt hole is sealed.

[0019] In the embodiment of the present invention, the step of grouting into the grouting pipe is: injecting foamed polyurethane into the grouting pipe.

[0020] In the embodiment of the present invention, a spare section is reserved at one end of the bolt hole close to the indoor side, and mortar is filled in the spare section.

[0021] The present invention adopts the above technical solution, so it has the following beneficial effects:

[0022] (1) The bolt hole sealing device of the cast-in-place integrated insulation board of the present invention can complete the sealing operation of the bolt holes on the inner side of the wall during the main structure construction stage, thereby preventing the bolt holes from being left in place for too long and causing rainwater to penetrate and damage the insulation board, thereby affecting the insulation effect. At the same time, it avoids the defects of the prior art of high-altitude operations on the outer side of the wall, such as high risk, low efficiency and high cost.

[0023] (2) The connection method of the end sealing piece and the second clamping structure of the grouting pipe of the present invention is simple and easy to disassemble. When the grouting pipe rotates, it is not easy to cause disturbance to the end sealing piece, so that the position of the end sealing piece is stable, ensuring the sealing effect of the end of the bolt hole.

[0024] (3) The sealing plate of the present invention is a flexible structure, and a notch is provided on the sealing plate, which can increase the deformation capacity of the sealing plate in the bolt hole without affecting the movement in the bolt hole during the pushing process. At the same time, when the end sealing piece is pushed out of the bolt hole, the sealing plate can rely on its own elasticity to recover and adhere to the outer wall skin, thereby improving the sealing effect.

[0025] (4) The tail wing of the present invention is radially arranged at one end of the cylinder away from the sealing plate, which can keep the direction of the end sealing piece stable during the process of pushing the end sealing piece, and at the same time can form a certain degree of obstruction to the foaming during the foaming, preventing the foaming from being squeezed out to the outside of the room. BRIEF DESCRIPTION OF THE DRAWINGS

[0026] Figure 1 It is a structural schematic diagram of the bolt hole sealing device of the cast-in-place integrated insulation board of the present invention.

[0027] Figure 2 It is a schematic structural diagram of the end plugging member of the present invention.

[0028] Figure 3 It is a schematic diagram of pushing the end sealing piece in the bolt hole sealing method of the cast-in-place integrated insulation board of the present invention.

[0029] Figure 4 The present invention Figure 3 A local enlarged schematic diagram of point A1 in the middle.

[0030] Figure 5 It is a schematic diagram of pushing the end sealing piece to the end of the bolt hole close to the outdoor side in the bolt hole sealing method of the cast-in-place integrated insulation board of the present invention.

[0031] Figure 6 The present invention Figure 5 A local enlarged schematic diagram of point A2 in the middle.

[0032] Figure 7 It is a schematic diagram of rotating the grouting pipe to separate the grouting pipe from the end plugging piece in the bolt hole plugging method of the cast-in-place integrated insulation board of the present invention.

[0033] Figure 8 The present invention Figure 7 A local enlarged schematic diagram of point A3 in the middle.

[0034] Fig. 9 It is a schematic diagram of pulling back the grouting pipe and grouting simultaneously in the method for sealing bolt holes of a cast-in-place integrated thermal insulation board according to the present invention.

[0035] Fig.10 The present invention Fig. 9 A partial enlarged schematic diagram of A4 in the middle.

[0036] The corresponding relationship between the reference numerals and the components is as follows:

[0037] Sealing member 1; first clamping structure 11; cylinder 12; sealing plate 13; notch 131; elastic tail wing 14; grouting pipe 2; second clamping structure 21; handle 22; foamed polyurethane 3; indoor side B; outdoor side C. DETAILED DESCRIPTION

[0038] To facilitate understanding of the present invention, the following description is provided in conjunction with the accompanying drawings and embodiments.

[0039] See also Figure 1 , Figure 2 As shown, the present invention provides a bolt hole sealing device for a cast-in-place integrated insulation board, which is arranged in the bolt hole to seal the bolt hole, and the sealing device comprises: a retractable end sealing member 1 and a grouting pipe 2, the end sealing member 1 passes through the bolt hole when retracted, and the end sealing member 1 seals one end of the bolt hole when expanded, a first clamping structure 11 is formed on one side of the end sealing member 1, and a second clamping structure 21 is provided at the end of the grouting pipe 2, and the second clamping structure 21 and the first clamping structure 11 cooperate with each other to clamp.

[0040] In the embodiment of the present invention, the end plugging member 1 comprises a cylinder 12 with openings at both ends and a plugging plate 13 covering the first end opening, wherein the outer edge of the plugging plate 13 extends out of the outer wall of the cylinder 12 and forms a retractable portion. Specifically, the cylinder 12 is a cylindrical cylinder, and the outer diameter of the cylinder 12 is smaller than the inner diameter of the bolt hole.

[0041] In the embodiment of the present invention, the bolt hole has a first end close to the indoor side B and a second end close to the outdoor side C. The end plugging member 1 is provided with a side of the first clamping structure 11 disposed toward the first end of the bolt hole, and the plugging plate 13 is disposed toward the second end of the bolt hole. The plugging device of the present invention can be used to timely plug the bolt holes during the main structure construction phase to prevent the bolt holes from being left in place for too long and causing rainwater to penetrate and damage the insulation board. The present invention mainly plugs the indoor side B. A 1m-high operating frame can be placed on the floor slab of each floor for construction. It is not high-altitude work and is less dangerous. It also saves time and construction costs for setting up facilities such as hanging baskets or climbing frames for exterior wall construction.

[0042] Preferably, the sealing plate 13 is a flexible plate, and the outer diameter of the sealing plate 13 is larger than the inner diameter of the bolt hole, so that during use, the retractable part of the end sealing piece 1 is expanded when passing through the bolt hole, and when the end sealing piece 1 is pulled back, the retractable part can fit with the wall skin outside the bolt hole to form a seal for the end of the bolt hole.

[0043] Preferably, the blocking plate 13 is provided with notches 131 at intervals, and the notches 131 are located at the outer edge of the blocking plate 13. The setting of the notches 131 can make the blocking plate 13 more easily deformed when squeezed by the inner wall of the bolt hole. In the embodiment of the present invention, the shape of the notches 131 is a trapezoid, and the lower base of the trapezoid is connected to the outer edge of the blocking plate 13, and the upper base of the trapezoid is connected to the inside of the blocking plate 13, and the upper base and the lower base are both arc-shaped edges coaxial with the blocking plate 13.

[0044] Preferably, the first clamping structure 11 is a limit plate fixed to the second end opening of the cylinder 12, and a strip groove is provided in the middle of the limit plate for the second clamping structure 21 to be inserted, and the second clamping structure 21 is a strip block whose shape matches the strip groove, and the second clamping structure 21 is rotated so that the second clamping structure 21 abuts against the inner wall of the limit plate; in an embodiment of the present invention, the groove is an oblong groove, and the second clamping structure 21 is in the shape of a long rod.

[0045] Preferably, the end plugging member 1 further comprises an elastic tail wing 14 fixed at intervals on the cylinder 12, and the end of the elastic tail wing away from the cylinder 12 abuts against the inner wall of the bolt hole. The setting of the elastic tail wing 14 is used to keep the direction of the end plugging member 1 stable during the process of pushing the end plugging member 1, and at the same time, it can prevent the slurry from being squeezed out to the outdoor side C during grouting. The width of the elastic tail wing 14 can be adjusted according to the specific construction, and is not limited to that shown in the drawings.

[0046] In an embodiment of the present invention, the tail end of the grouting pipe 2 can be connected to a slurry injection mechanical device to provide slurry to the grouting pipe 2, and the slurry can be foamed polyurethane; the second clamping structure 21 is perpendicular to the grouting pipe 2, and the grouting pipe 2 passes through the second clamping structure 21 and exposes the slurry outlet of the grouting pipe 2.

[0047] Preferably, the grouting pipe 2 is provided with scale lines (not shown) so that the advancement length of the grouting pipe 2 in the bolt hole can be obtained according to the reading of the scale lines.

[0048] Preferably, a handle 22 is provided at one end of the grouting pipe 2 away from the second clamping structure 21, so that the rotation of the grouting pipe 2 is more convenient and labor-saving.

[0049] The above specifically describes the plugging device for the bolt hole of the cast-in-place integrated thermal insulation board of the present invention. The following describes the plugging method thereof, which includes the following steps: providing a retractable end plugging member 1, wherein a first clamping structure 11 is formed on one side of the end plugging member 1;

[0050] A grouting pipe 2 is provided, and a second clamping structure 21 is provided at the end of the grouting pipe 2; further, before construction, it is also necessary to Figure 1 The plugging device structure is customized according to the diameter and depth of the engineering bolt hole to produce a special end plugging piece 1 and a grouting pipe 2;

[0051] The first clamping structure 11 and the second clamping structure 21 are clamped together to connect the end plugging member 1 to the head of the grouting pipe 2;

[0052] Push the grouting pipe 2 with the end plugging piece 1 connected to the head along the bolt hole from the indoor side B of the wall to the outdoor side C. The end plugging piece 1 is squeezed and contracted by the inner wall of the bolt hole when being pushed in the bolt hole. When pushed to the outdoor side C, the end plugging piece 1 is unfolded. Pay attention to the position of the scale line on the grouting pipe 2 to prevent the situation that it is difficult to retract due to being pushed too long.

[0053] Pull back the grouting pipe 2, and the unfolded end plugging member 1 plugs one end of the bolt hole and is positioned inside the one end of the bolt hole;

[0054] The clamping relationship between the second clamping structure 21 and the first clamping structure 11 is released, and grouting is injected into the grouting pipe 2. The slurry in the grouting pipe 2 flows out from the head of the grouting pipe 2 and fills the bolt hole. The grouting pipe 2 is pulled toward the indoor side B. The slurry is filled from the end of the bolt hole close to the outdoor side C to the end of the bolt hole close to the indoor side B, and the bolt hole is sealed.

[0055] In the embodiment of the present invention, the step of grouting into the grouting pipe 2 is: injecting foamed polyurethane into the grouting pipe 2, and the foamed polyester can also be replaced by other suitable plugging materials.

[0056] In the embodiment of the present invention, a spare section is reserved at one end of the bolt hole close to the indoor side B, and mortar is filled in the spare section; specifically, the length of the spare section can be 20 mm from the indoor side B wall.

[0057] The present invention is described in detail above in conjunction with the accompanying drawings and embodiments. A person skilled in the art can make various variations of the present invention according to the above description. Therefore, certain details in the embodiments should not constitute a limitation of the present invention, and the scope of protection of the present invention shall be defined by the scope of the attached claims.

Claims

1. A bolt hole plugging device for a cast-in-place integrated insulation board, characterized in that: include: A retractable end plugging piece, which passes through the bolt hole when retracted and blocks one end of the bolt hole when expanded, and a first clamping structure is formed on one side of the end plugging piece; A grouting pipe, wherein the end of the grouting pipe is provided with a second clamping structure, and the second clamping structure and the first clamping structure are clamped with each other; The end blocking member comprises a cylinder with openings at both ends and a blocking plate covering the first end opening, wherein the outer edge of the blocking plate extends out of the outer wall of the cylinder and forms a retractable portion; The blocking plate is a flexible plate, and the outer diameter of the blocking plate is larger than the inner diameter of the bolt hole, so that during use, the retractable part of the end blocking piece is expanded when passing through the bolt hole, and when the end blocking piece is pulled back, the retractable part can fit with the wall skin outside the bolt hole to form a blockage for the end of the bolt hole; The blocking plate is provided with gaps at intervals, and the gaps are located at the outer edge of the blocking plate; The first clamping structure is a limit plate fixed to the second end opening of the cylinder, a strip groove is provided in the middle of the limit plate for the second clamping structure to be inserted, and the second clamping structure is a strip block whose shape matches the strip groove; It also includes an elastic tail wing fixed on the cylinder at intervals, and one end of the elastic tail wing away from the cylinder is against the inner wall of the bolt hole.

2. A method for plugging bolt holes of a cast-in-place integrated insulation board, characterized in that: The following steps are involved: Providing a retractable end blocking piece, wherein a first clamping structure is formed on one side of the end blocking piece; Providing a grouting pipe, wherein the end of the grouting pipe is provided with a second clamping structure; The first clamping structure and the second clamping structure are clamped together to connect the end plugging member to the head of the grouting pipe; Pushing the grouting pipe with the end plugging piece connected to the head along the bolt hole from the indoor side to the outdoor side of the wall, the end plugging piece is squeezed and contracted by the inner wall of the bolt hole when being pushed in the bolt hole, and the end plugging piece is expanded when being pushed to the outdoor side; Pulling back the grouting pipe, the expanded end plugging piece plugs one end of the bolt hole and is positioned inside the one end of the bolt hole; Release the clamping relationship between the second clamping structure and the first clamping structure, inject grout into the grouting pipe, the slurry in the grouting pipe flows out from the head of the grouting pipe and fills the bolt hole, pull the grouting pipe toward the indoor side, the slurry is filled from the end of the bolt hole close to the outdoor side to the end of the bolt hole close to the indoor side, and the bolt hole is sealed.

3. The method for sealing bolt holes of a cast-in-place integrated thermal insulation board according to claim 2, characterized in that: The step of grouting into the grouting pipe is: injecting foamed polyurethane into the grouting pipe.

4. The method for sealing bolt holes of a cast-in-place integrated insulation board according to claim 3, characterized in that: The method also includes reserving a spare section at one end of the bolt hole close to the indoor side, and filling the spare section with mortar.

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