Shear wall through-wall bolt hole reserving device

Abstract

The utility model relates to the technical field of shear wall construction, in particular to a shear wall through-wall bolt hole reserving device which comprises first formworks and second formworks, the two first formworks arranged in parallel are located between the two second formworks arranged in parallel, and a plurality of split bolts are arranged between the two second formworks. The device is characterized in that reaming pipes are arranged at the two ends of each plastic pipe, connecting pipes are fixed to the middle positions of the reaming pipes, the ends, away from the plastic pipes, of the reaming pipes abut against the second formwork, and the connecting pipes are connected with the second formwork. The end, close to the plastic pipe, of the connecting pipe is inserted into the plastic pipe and detachably connected with the plastic pipe, the diameter of the end, close to the plastic pipe, of the chambering pipe is small, the diameter of the end, away from the plastic pipe, of the chambering pipe is large, and the split bolt is in threaded connection with a nut after penetrating through the second formwork. The shear wall bolt hole plugging device has the technical effect that plugging construction can be conveniently conducted on shear wall bolt holes.

Description

Technical Field

[0001] The utility model relates to the technical field of shear wall construction, in particular to a shear wall through-wall bolt hole reservation device. Background Art

[0002] At present, the method of tension bolts is commonly used in the construction industry to reinforce shear walls. The tension bolt holes are in the form of reserved PVC plastic pipes. The common sealing method is to first use an electric drill to break the PVC pipes on both sides of the shear wall and expand the holes of the wall-penetrating screws into a trumpet shape. After flushing and moistening, they are sealed tightly with expansive cement mortar. After the expansive cement mortar reaches a certain strength, the foaming agent is poured from one side of the wall, and then the other side is sealed, and finally the inner and outer walls are plastered.

[0003] The above method is currently more commonly used, but when the shear wall is enlarged manually with an electric drill, it is very difficult to enlarge the eye due to the high strength of the later concrete, the work efficiency is low, and the noise and dust pollution during the electric drill operation are also very serious, resulting in the defect of difficulty in sealing the shear wall bolt hole. Utility Model Content

[0004] The embodiment of the utility model provides a shear wall through-wall bolt hole reservation device to achieve the technical effect of facilitating the blocking construction of the shear wall bolt holes.

[0005] The utility model provides a shear wall through-wall bolt hole reservation device, which adopts the following technical solutions:

[0006] A device for reserving through-wall bolt holes for a shear wall comprises a first template and a second template, wherein two parallel first templates are located between two parallel second templates, a plurality of tension bolts are arranged between the two second templates, each tension bolt corresponds to a plastic tube, and the plastic tube is sleeved on the tension bolts. The device is characterized in that expansion tubes are arranged at both ends of the plastic tube, a connecting tube is fixed at the middle position of the expansion tube, an end of the expansion tube away from the plastic tube abuts against the second template, an end of the connecting tube close to the plastic tube is inserted into the interior of the plastic tube and detachably connected to the plastic tube, an end of the expansion tube close to the plastic tube has a small diameter, and an end of the expansion tube away from the plastic tube has a large diameter, and a nut is threadedly connected after the expansion bolts penetrate through the second template.

[0007] Furthermore, a plurality of ribs are fixed between the inner wall of the expansion tube and the outer wall of the connecting tube.

[0008] Furthermore, an annular clamping block made of rubber material is fixed on the outer wall of the connecting pipe close to the plastic pipe, and a clamping groove for clamping the clamping block is provided on the inner wall of the plastic pipe.

[0009] Furthermore, two upper and lower back ribs are provided on the side of the two second templates away from each other, the tension bolts are located between the two back ribs, one end of each tension bolt corresponds to a mountain-shaped clip, two steel pipes are provided between each mountain-shaped clip and the back rib, the nut is pressed against the mountain-shaped clip, the mountain-shaped clip is pressed against the steel pipe, and the steel pipe is pressed against the back rib.

[0010] Furthermore, concrete is poured in the space enclosed by the first formwork and the second formwork, and the plastic pipe is poured in the concrete. After the expansion tube on the plastic pipe is removed, a truncated cone-shaped groove is formed on the outer wall of the shear wall near the plastic pipe, and the groove is connected to the inside of the plastic pipe. The inside of the plastic pipe is filled with a foaming agent, and the groove is filled with cement mortar.

[0011] Compared with the prior art, the beneficial effects of the utility model are:

[0012] When the above-mentioned mold is used to seal the through hole, the operation is simple and the effect is good; by using a plastic tube and a reaming tube in combination, the reaming tube is directly removed at the screw hole after the second template is removed to form a groove, and there is no need to manually reame the hole with an electric drill later. The device is simple to make and easy to install. The reaming tube can be reused, saving a lot of labor and materials, and meeting the requirements of contemporary green construction; saving labor and materials, improving construction efficiency, and providing great convenience for the construction of shear wall through-wall screw hole sealing. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] The drawings described herein are used to provide a further understanding of the present invention, constitute a part of the present application, and do not constitute a limitation of the present invention. In the drawings:

[0014] Figure 1 To embody the overall structural schematic diagram of the utility model;

[0015] Figure 2 A schematic diagram showing a plastic pipe sleeve on a tension bolt in the utility model;

[0016] Figure 3 It is a schematic diagram of the clamping block and the clamping slot in the utility model.

[0017] Explanation of the accompanying drawings: 1. First template; 2. Second template; 3. Tension bolt; 31. Nut; 4. Plastic pipe; 41. Snap-in groove; 5. Expanding pipe; 6. Connecting pipe; 61. Rib plate; 62. Snap-in block; 7. Back rib; 8. Steel pipe; 9. Mountain-shaped clamp. DETAILED DESCRIPTION

[0018] In order to make the purpose, technical solution and advantages of the utility model more clear, the utility model is further described in detail below in combination with the implementation mode and the accompanying drawings. Here, the schematic implementation mode of the utility model and its description are used to explain the utility model, but are not used as a limitation of the utility model.

[0019] Reference Figure 1 , Figure 2 and Figure 3 The utility model discloses a shear wall through-wall bolt hole reservation device, comprising two first templates 1 and two second templates 2, the two second templates 2 are located between the two first templates 1, and concrete is poured in the space formed by the two first templates 1 and the two second templates 2. The second template 2 is a 12mm thick wooden template.

[0020] A plurality of tension bolts 3 are arranged between the two second templates 2, one end of the tension bolt 3 passes through one of the second templates 2, and the other end of the tension bolt 3 passes through the other second template 2. A plastic tube 4 is sleeved on each tension bolt 3, and the plastic tube 4 is located between the two second templates 2. Both ends of the plastic tube 4 are connected to a reaming tube 5, and the end of the reaming tube 5 away from the plastic tube 4 abuts against the inner wall of the second template 2.

[0021] The flared tube 5 is in a trumpet shape, and the diameter of the flared tube 5 gradually increases from the side close to the plastic tube 4 to the side away from the plastic tube 4. A connecting tube 6 is fixed at the center of the flared tube 5. A rib plate 61 is fixed between the inner wall of the flared tube 5 and the outer wall of the connecting tube 6. The end of the connecting tube 6 close to the second template 2 is flush with the end of the flared tube 5 close to the second template 2, and the connecting tube 6 is inserted into the plastic tube 4. An annular clamping block 62 made of rubber material is fixed on the outer wall of the connecting tube 6 close to the plastic tube 4, and a clamping groove 41 is provided on the inner wall of the plastic tube 4. When the connecting tube 6 is inserted into the plastic tube 4, the clamping block 62 is clamped with the clamping groove 41.

[0022] The outer side of the second formwork 2 is provided with a back rib 7, the outer side of the back rib 7 is provided with a steel pipe 8, the outer side of the steel pipe 8 is provided with a mountain-shaped clamp 9, one end of each tension bolt 3 corresponds to two steel pipes 8 and a mountain-shaped clamp 9, and the tension bolt 3 passes through the mountain-shaped clamp 9 and is threadedly connected with a nut 31. After tightening the nut 31, the second formwork 2 is fixed, and then concrete is poured into the inner side of the second formwork 2.

[0023] After the concrete is formed, the first formwork 1 and the second formwork 2 are removed, the expansion tube 5 is removed from the screw eye of the shear wall, and the tension bolt 3 is taken out. A through hole is formed on the shear wall, and a truncated cone-shaped groove is formed at the position of the through hole close to the surface of the shear wall. When the through hole is blocked, the middle of the through hole is filled with polyethylene foaming agent, and the grooves on both sides of the through hole are blocked with 1:1 expansion cement mortar or polymer cement mortar, and the blocking material at the groove of the outer wall is 1:3 dry hard cement mortar.

[0024] The implementation principle of the shear wall through-wall bolt hole reservation device of the utility model is as follows: after the steel bars are tied to the shear wall, the expansion tube 5 is inserted into the plastic tube 4, so that the end of the expansion tube 5 away from the plastic tube 4 contacts the inner wall of the second template 2, and the plastic tube 4 is buried in the shear wall steel wire. While burying, support members are added in the shear wall to ensure the wall thickness. Then, the second templates 2 on both sides of the shear wall are fixed, and holes are drilled in the second template 2 at the position where the plastic tube 4 and the expansion tube 5 are buried, and the tension bolts 3 are inserted into the plastic tube 4, so that the tension bolts 3 and nuts 31 fix the second template 2, and then concrete is poured.

[0025] After the concrete is formed, the second formwork 2 on both sides is removed to form a shear wall, the expansion tube 5 on the shear wall is removed, and the connecting tube 6 is pulled out from the inside of the plastic tube 4, so that a through hole is formed on the shear wall, and a truncated cone-shaped groove is formed near the surface of the shear wall. The through hole is then blocked, the middle of the through hole is filled with polyethylene foaming agent, and the grooves on both sides of the through hole are blocked with 1:1 expansion cement mortar or polymer cement mortar.

[0026] When the above-mentioned mold is used to seal the through hole, the operation is simple and the effect is good; by using the plastic tube 4 and the reaming tube 5 in combination, the reaming tube 5 is directly removed at the screw hole after the second template 2 is removed to form a groove, and there is no need to manually reame the hole with an electric drill later. The device is simple to make and easy to install. The reaming tube 5 can be reused, saving a lot of labor and materials, meeting the requirements of contemporary green construction; saving labor and materials, improving construction efficiency, and providing great convenience for the sealing construction of shear wall through-wall screw holes.

[0027] The above description is only a preferred embodiment of the present invention and is not intended to limit the protection scope of the present invention. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present invention are included in the protection scope of the present invention.

Claims

1. A shear wall through-wall bolt hole reservation device, comprising a first template (1) and a second template (2), wherein two parallel first templates (1) are located between two parallel second templates (2), a plurality of tension bolts (3) are arranged between the two second templates (2), each tension bolt (3) corresponds to a plastic tube (4), and the plastic tube (4) is sleeved on the tension bolt (3), characterized in that: Both ends of the plastic tube (4) are provided with expansion tubes (5), a connecting tube (6) is fixed in the middle of the expansion tube (5), one end of the expansion tube (5) away from the plastic tube (4) is in contact with the second template (2), one end of the connecting tube (6) close to the plastic tube (4) is inserted into the interior of the plastic tube (4) and is detachably connected to the plastic tube (4), the end of the expansion tube (5) close to the plastic tube (4) has a small diameter, and the end of the expansion tube (5) away from the plastic tube (4) has a large diameter, and the tension bolt (3) passes through the second template (2) and is threadedly connected with a nut (31).

2. The shear wall through-wall bolt hole reservation device according to claim 1 is characterized in that: A plurality of ribs (61) are fixed between the inner wall of the expansion tube (5) and the outer wall of the connecting tube (6).

3. The shear wall through-wall bolt hole reservation device according to claim 1 or 2, characterized in that: An annular clamping block (62) made of rubber material is fixed on the outer wall of the connecting pipe (6) close to the plastic pipe (4), and a clamping groove (41) for clamping the clamping block (62) is provided on the inner wall of the plastic pipe (4).

4. The shear wall through-wall bolt hole reservation device according to claim 3 is characterized in that: Two upper and lower back ribs (7) are arranged on the side of the two second templates (2) that are away from each other. The tension bolts (3) are located between the two back ribs (7). One end of each tension bolt (3) corresponds to a mountain-shaped clamp (9). Two steel pipes (8) are arranged between each mountain-shaped clamp (9) and the back rib (7). The nut (31) is pressed against the mountain-shaped clamp (9), the mountain-shaped clamp (9) is pressed against the steel pipe (8), and the steel pipe (8) is pressed against the back rib (7).

5. The shear wall through-wall bolt hole reservation device according to claim 4 is characterized in that: Concrete is poured in the space enclosed by the first template (1) and the second template (2), and the plastic pipe (4) is poured in the concrete. After the expansion pipe (5) on the plastic pipe (4) is removed, a truncated cone-shaped groove is formed on the outer wall of the shear wall near the plastic pipe (4), and the groove is connected to the inside of the plastic pipe (4). The inside of the plastic pipe (4) is filled with a foaming agent, and the groove is filled with cement mortar.

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