Device for reserving building vertical plumbing pay-off hole

Abstract

The utility model discloses a device for reserving a building vertical plumbing pay-off hole, which comprises a mould which is hollow inside and is externally provided with a spiral line, and the top of the mould is provided with a protective cover plate capable of being opened and closed; the dismounting buckle is arranged in the cavity of the mold and is used for being matched with a dismounting tool to operate; the plugging bottom die is formed by welding a T-shaped steel bar and a circular steel sheet, and the diameter of the circular steel sheet is larger than that of the periphery of the die; and the dismounting tool is used for screwing out the cylindrical mold by dismounting the buckle. The construction requirements of field safety and civilization and quality can be met, the safety protection of the hole is ensured, the forming quality of the hole is ensured, and the convenience and quality of hole plugging and formwork erecting are ensured; and meanwhile, the prefabricated aluminum pay-off hole mold can be repeatedly used.

Description

TECHNICAL FIELD

[0001] The utility model relates to the technical field of building construction, specifically relates to a device of building vertical point projection line hole reservation. BACKGROUND

[0002] With the continuous improvement of building technology and the upgrading of building materials, the height of the current building structure is generally more than 100 meters. The verticality control during high-rise building construction is particularly important. In order to ensure that the verticality of the building meets the relevant requirements, the laser plumb instrument is generally used for point projection control, so the building needs to reserve the line hole to facilitate the vertical point projection transmission of the floor control network.

[0003] However, in the actual construction process, the existing line hole is generally a right rhombus, and the maximum cross-sectional area is generally not more than 0.25*0.25 m2. The line hole is difficult to operate, and the surrounding concrete is loose, the corner is dropped, and the molding appearance is poor when the formwork is removed. It is difficult to protect the line hole, because the line hole needs to be used frequently, so it cannot be blocked by fixed formwork. It is difficult to block the line hole, in order to ensure that the structure has no leakage, it cannot be used by hanging formwork, and the supporting formwork process is complicated. At this time, a new type of line hole reservation mold needs to be designed to solve the problems of line hole removal, protection and blocking. UTILITY MODEL CONTENTS

[0004] The purpose of the utility model is to solve the problems in the background art, and a device for reserving a building vertical point projection line hole is provided.

[0005] The purpose of the utility model can be achieved through the following technical solutions:

[0006] A device for reserving a building vertical point projection line hole, comprising:

[0007] The mold is hollow inside and has a spiral line outside, and a detachable protective cover is arranged at the top of the mold;

[0008] The dismounting buckle is arranged in the cavity of the mold and used for cooperating with the dismounting tool;

[0009] The blocking bottom mold is welded by a T-shaped steel bar and a circular steel sheet, and the diameter of the circular steel sheet is greater than the peripheral diameter of the mold;

[0010] The dismounting tool is used for rotating out the cylindrical mold through the dismounting buckle.

[0011] As a further scheme of the utility model, the protective cover is made of aluminum alloy and has anti-slip lines on the surface.

[0012] As a further scheme of the utility model, the spiral line is equidistant.

[0013] As a further scheme of the utility model: the inner hole diameter height of the mold is consistent with the thickness of the embedded structure plate, and the mold bottom is provided with an annular groove for clamping and fixing with the dismounting buckle.

[0014] As a further scheme of the utility model: the height of the T-shaped steel bar is half of the height of the pay-off hole, and the vertical part surface is provided with external threads for screwing into the reserved hole.

[0015] As a further scheme of the utility model: the circular steel sheet edge is provided with a folded edge.

[0016] As a further scheme of the utility model: the protective cover plate and the mold are connected through a hinge, the inner side of the protective cover plate is provided with a rubber sealing ring, and a waterproof sealing structure is formed with the mold top when closed.

[0017] As a further scheme of the utility model: the annular groove is embedded with an elastic rubber pad.

[0018] As a further scheme of the utility model: the surface of the circular steel sheet of the plugging bottom mold is coated with an anti-rust coating, and a grouting hole is formed in the center.

[0019] As a further scheme of the utility model: the mold is cylindrical.

[0020] The utility model has the beneficial effects that the construction requirements of on-site safety and quality can be met, the hole opening safety protection, hole opening forming quality and the convenience and quality of hole opening plugging formwork are ensured, and the prefabricated aluminum pay-off hole mold can be repeatedly used. BRIEF DESCRIPTION OF DRAWINGS

[0021] The utility model will be further described below with reference to the drawings.

[0022] Figure 1 is a cross-sectional structure schematic view of the utility model in use;

[0023] Figure 2 is a position schematic view of the circular steel sheet of the utility model on the structure plate in use;

[0024] Figure 3 and 4 is a structure schematic view of the mold of the utility model;

[0025] Figure 5 is a structure schematic view of the circular steel sheet of the utility model;

[0026] Figure 6 is a structure schematic view of the dismounting tool of the utility model.

[0027] In the figure: 1, protective cover plate; 2, mold; 3, spiral line; 4, dismounting buckle; 5, T-shaped steel bar; 6, round steel sheet; 7, dismounting tool; 8, structural plate. DETAILED DESCRIPTION

[0028] The technical solutions in the embodiments of the utility model will be clearly and completely described below with reference to the drawings in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, rather than all the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by those skilled in the art without creative labor fall within the scope of protection of the utility model.

[0029] Embodiment one, please refer to Figures 1-6 The utility model discloses a kind of devices for reserving building vertical point-throwing line hole, comprising:

[0030] Mold 2, hollow inside and outside is equipped with spiral line 3, mold 2 top is provided with openable protective cover plate 1;

[0031] Dismounting buckle 4 is built-in in the cavity of mold 2, for cooperating with the operation of dismounting tool 7;

[0032] Plugging bottom die is welded from T-shaped steel bar 5 and round steel sheet 6, and the diameter of the round steel sheet 6 is greater than the peripheral diameter of mold 2;

[0033] Dismounting tool 7 is used to rotate cylindrical mold 2 out through dismounting buckle 4.

[0034] Embodiment two, please refer to Figures 1-6 The utility model discloses a kind of devices for reserving building vertical point-throwing line hole, comprising:

[0035] Mold 2, hollow inside and outside is equipped with spiral line 3, mold 2 top is provided with openable protective cover plate 1, the protective cover plate 1 is aluminum alloy material, surface is equipped with antiskid line, the spiral line 3 is equidistant spiral, the inner hole diameter height of the mold 2 is consistent with the thickness of the structure plate 8 that is embedded, and mold 2 bottom is equipped with annular groove, for with The dismounting buckle 4 is connected and fixed;

[0036] Dismounting buckle 4 is built-in in the cavity of mold 2, for cooperating with the operation of dismounting tool 7;

[0037] Plugging bottom die is welded from T-shaped steel bar 5 and round steel sheet 6, and the diameter of the round steel sheet 6 is greater than the peripheral diameter of mold 2;

[0038] Dismounting tool 7 is used to rotate cylindrical mold 2 out through dismounting buckle 4.

[0039] Embodiment three, please refer toFigures 1-6 The utility model discloses a kind of building vertical point projection line hole reservation devices, comprising:

[0040] Mold 2, hollow inside and outside is equipped with spiral line 3, mold 2 top is provided with openable protective cover plate 1, the protective cover plate 1 is aluminum alloy material, surface is equipped with antiskid line, spiral line 3 is equidistant spiral, the inner hole diameter height of mold 2 is consistent with the thickness of embedded structural plate 8, and mold 2 bottom is equipped with annular groove, for with the detachable buckle 4 clamping fixed, annular groove is embedded with elastic rubber pad, protective cover plate 1 and mold 2 are connected by hinge, protective cover plate 1 inside is equipped with rubber sealing ring, and waterproof sealing structure is formed when closing with mold 2 top portion;

[0041] Detachable buckle 4, built-in in the cavity of mold 2, for cooperating with dismounting tool 7 operation;

[0042] Plugging bottom mould is welded from T-shaped steel bar 5 and circular steel sheet 6, the diameter of circular steel sheet 6 is greater than the peripheral diameter of mold 2, the height of T-shaped steel bar 5 is half of line hole height, the surface of vertical portion is equipped with external thread, for screwing into reserved hole, the edge of circular steel sheet 6 is equipped with flange;

[0043] Dismounting tool 7 is used to rotate cylindrical mold 2 out through detachable buckle 4.

[0044] Example four, please refer to Figures 1-6 The utility model discloses a kind of building vertical point projection line hole reservation devices, comprising:

[0045] Mold 2, hollow inside and outside is equipped with spiral line 3, mold 2 top is provided with openable protective cover plate 1, the protective cover plate 1 is aluminum alloy material, surface is equipped with antiskid line, spiral line 3 is equidistant spiral, the inner hole diameter height of mold 2 is consistent with the thickness of embedded structural plate 8, and mold 2 bottom is equipped with annular groove, for with the detachable buckle 4 clamping fixed, annular groove is embedded with elastic rubber pad, protective cover plate 1 and mold 2 are connected by hinge, protective cover plate 1 inside is equipped with rubber sealing ring, and waterproof sealing structure is formed when closing with mold 2 top portion;

[0046] Detachable buckle 4, built-in in the cavity of mold 2, for cooperating with dismounting tool 7 operation;

[0047] Plugging bottom mould is welded from T-shaped steel bar 5 and circular steel sheet 6, the diameter of circular steel sheet 6 is greater than the peripheral diameter of mold 2, the height of T-shaped steel bar 5 is half of line hole height, the surface of vertical portion is equipped with external thread, for screwing into reserved hole, the edge of circular steel sheet 6 is equipped with flange;

[0048] A dismounting tool 7 is used to unscrew the cylindrical mold 2 by dismounting the buckle 4.

[0049] The surface of the circular steel sheet 6 of the blocking bottom mold is coated with an anti-rust coating, and a grouting hole is provided in the center.

[0050] The mold 2 is cylindrical.

[0051] On the basis of the above embodiments, it is also worth mentioning that:

[0052] The diameter of the circular steel sheet 6 is greater than the peripheral diameter of the cylindrical mold 2 by 10 cm.

[0053] The protective cover plate 1 is made of aluminum alloy material, with a thickness of 2-3 mm, and a non-slip pattern on the surface;

[0054] The helical line 3 is an equidistant helix with a pitch of 1 / 5 to 1 / 4 of the thickness of the structural plate 8.

[0055] The inner space of the cylindrical mold 2 is 25 cm in diameter, and the height is the same as the thickness of the embedded structural plate 8, and the bottom of the mold is provided with an annular groove for clamping and fixing with the dismounting buckle 4.

[0056] The height of the T-shaped steel bar 5 is 1 / 2 of the height of the pay-off hole, and the surface of the vertical part is provided with external threads for screwing into the reserved hole; the edge of the circular steel sheet 6 is provided with a folded edge with a width of 2 cm for enhancing the stability of the formwork.

[0057] The simple dismounting tool 7 is made of two threaded steels with a length of 30-40 cm, and the ends are bent to form L-shaped clamping jaws with a spacing matching the size of the dismounting buckle 4.

[0058] The annular groove is embedded with an elastic rubber pad for buffering the impact on the concrete structure during dismounting.

[0059] The thread depth of the helical line 3 is 3-5 mm, the thread angle is 60°, and the thread end is provided with a guide slope to facilitate the mold to be screwed into the embedded structural plate 8.

[0060] The surface of the circular steel sheet 6 of the blocking bottom mold is coated with an anti-rust coating, and a grouting hole with a diameter of 5 cm is provided in the center for pouring concrete during blocking.

[0061] The outer surface of the cylindrical mold 2 is provided with a scale mark for indicating the embedding depth, and the side wall of the mold is provided with an observation window with a transparent acrylic plate embedded in the window for checking the internal concrete filling state.

[0062] The above has carried out the detailed explanation to one embodiment of the utility model, but the content described is only the preferred embodiment of the utility model, cannot be considered for limiting the implementation scope of the utility model. All equal changes and improvements etc. that are made in the utility model application scope should still belong to the claim coverage scope of the utility model.

Claims

1. A device for pre-reserving holes for vertical projection lines in construction, characterized in that, include: The mold (2) is hollow inside and has spiral lines (3) on the outside. The top of the mold (2) is equipped with an openable protective cover (1). The disassembled buckle (4) is placed inside the cavity of the mold (2) and used to cooperate with the disassembly tool (7) for operation; The sealing bottom mold is welded from T-shaped steel bars (5) and circular steel sheets (6), wherein the diameter of the circular steel sheets (6) is larger than the outer diameter of the mold (2); Disassembly tool (7) is used to unscrew the cylindrical mold (2) by disassembling the buckle (4).

2. The device for reserving vertical projection holes in buildings according to claim 1, characterized in that, The protective cover (1) is made of aluminum alloy and has anti-slip texture on its surface.

3. The device for reserving vertical projection holes in buildings according to claim 2, characterized in that, The spiral line (3) is an equidistant spiral.

4. The device for reserving vertical projection holes in buildings according to claim 3, characterized in that, The inner hollow diameter height of the mold (2) is consistent with the thickness of the pre-embedded structural plate (8), and the bottom of the mold (2) is provided with an annular groove for engaging and fixing with the disassembly buckle (4).

5. The device for reserving vertical projection holes in buildings according to claim 1, characterized in that, The height of the T-shaped steel bar (5) is half the height of the laying hole, and its vertical part has external threads on its surface for screwing into the reserved hole.

6. The device for reserving vertical projection holes in buildings according to claim 5, characterized in that, The circular steel sheet (6) has a folded edge.

7. The device for reserving vertical projection holes in buildings according to claim 1, characterized in that, The protective cover (1) is connected to the mold (2) by a hinge. The inner side of the protective cover (1) is provided with a rubber sealing ring, which forms a waterproof sealing structure with the top of the mold (2) when closed.

8. The device for reserving vertical projection holes in buildings according to claim 4, characterized in that, An elastic rubber pad is embedded in the annular groove.

9. The device for reserving vertical projection holes in buildings according to claim 1, characterized in that, The circular steel sheet (6) of the sealing bottom mold is coated with an anti-rust coating and has a grouting hole in the center.

10. A device for reserving vertical projection holes in buildings according to any one of claims 1 to 9, characterized in that, The mold (2) is cylindrical.

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