Brickwork wall tie bar pre-embedding hole forming device

Abstract

The utility model provides a brickwork wall tie bar pre-embedded hole making device which comprises a nail taking device and a hole making nail. The hole forming nail comprises a hole forming nail cap, a nail taking ring and a hole forming nail rod which are sequentially arranged, and the outer diameter of the hole forming nail cap, the outer diameter of the nail taking ring and the outer diameter of the hole forming nail rod are sequentially reduced. When in use, the nail taking ring is pre-embedded in a concrete masonry wall and is positioned outside the concrete masonry wall, and one end of the nail taking ring, which is far away from the hole-making nail rod, is provided with the hole-making nail cap; when the nail is taken out, a nail taking device is clamped into the nail taking ring, and the hole making nail is pulled out. According to the embedded hole making device, the mode of embedding the hole making nails is adopted, and the embedded hole making device is conveniently pulled out from concrete through the simple nail taking device, so that holes needed by follow-up masonry wall tie bar planting are formed, the problems that when holes are drilled in a solidified concrete column, dust is large, drilling is blocked, and the holes are not thoroughly cleaned are solved, and the construction efficiency is improved. And the working efficiency of masonry wall tie bar planting is greatly improved, labor is saved, and safety and environmental protection are achieved.

Description

Technical Field

[0001] The utility model relates to the technical field of building construction, and particularly relates to a device for pre-burying and making holes for tie bars of masonry walls. Background Art

[0002] To ensure the seismic capacity of building masonry walls, when the length of the masonry wall exceeds a certain value, tie bars need to be set in the masonry wall. Tie bars refer to the steel bars that connect the post-masonry and concrete components together according to certain structural requirements by means of connection methods such as post-inserted bars, pre-buried bars, and tying. The common practice in the prior art is as follows: hole positioning on the reinforced concrete column → drilling → hole cleaning → glue injection → post-inserting bars → lengthening the steel bars. The drilling depth requirement is >100mm and >10d. After drilling, the dust in the post-inserted bar hole is blown out by an air compressor or other equipment, and then the post-inserted bar hole is wiped clean with a brush or cotton dipped in acetone. However, during construction, it is easy for the drill bit to hit the internal steel bars in the concrete during drilling, and it is necessary to change the position and reposition the drilling. In addition, there are also situations that affect the quality and efficiency of post-inserted bars, such as insufficient drilling depth, large dust during drilling, and incomplete cleaning of the dust in the hole. Therefore, it is necessary to improve the prior art. Content of the Utility Model

[0003] The purpose of the utility model is to provide a device for pre-burying and making holes for tie bars of masonry walls, which can solve the problem of poor quality of post-inserted bars caused by the need for drilling in the prior art.

[0004] The purpose of the utility model is realized through the following technical solutions:

[0005] A device for pre-burying and making holes for tie bars of masonry walls includes a nail extractor 3 and a hole-making nail 4; the hole-making nail 4 includes three sections arranged in sequence: a hole-making nail cap 402, a nail-taking ring 401, and a hole-making nail rod 403, and the outer diameters of the hole-making nail cap 402, the nail-taking ring 401, and the hole-making nail rod 403 decrease in sequence; during use, the nail-taking ring 401 is pre-buried in the concrete masonry wall, the nail-taking ring 401 is located outside the concrete masonry wall, and a hole-making nail cap 402 is arranged at one end of the nail-taking ring 401 far from the hole-making nail rod 403; when taking the nail, the nail extractor 3 is clamped onto the nail-taking ring 401, and the hole-making nail 4 is pulled outwards.

[0006] Furthermore, the nail extractor 3 includes a handle 301, and a hammering platform 304 is arranged at the end of the handle 301; wedge-shaped platforms 302 / 303 are arranged at both ends of the lower surface of the hammering platform 304 and are perpendicular to the hammering platform 304; the distance between the two wedge-shaped platforms is greater than the outer diameter of the nail-taking ring 401 and less than the minimum dimension of the surface of the hole-making nail cap 402 close to the nail-taking ring 401; the horizontal cross-sectional area of the wedge-shaped platforms 302 / 303 gradually decreases from top to bottom.

[0007] Further, the hole-making nail cap 402 is a cuboid or an even-sided polygonal column, and at least one set of mutually parallel sides is included in the even-sided polygonal column.

[0008] Further, the nail-taking ring 401 is a cylinder.

[0009] Further, the hole-making nail rod 403 is a long cone or a cylinder.

[0010] Further, the minimum diameter of the hole-making nail rod 403 ≥ the minimum diameter of the tie bar to be implanted.

[0011] Further, the vertical side of the wedge-shaped platform 302 / 303 is close to the concrete masonry wall, and the inclined surface opposite to the vertical surface abuts against the hole-making nail cap 402.

[0012] Further, the distance between the two wedge-shaped platforms 302 / 303 is consistent with the minimum thickness between the two parallel sides of the hole-making nail cap 402.

[0013] The utility model adopts the method of pre-burying hole-making nails, and the pre-buried hole-making device can be easily pulled out from the concrete by a simple nail-taking tool, so as to form the holes required for the subsequent tie bar implantation of the masonry wall, avoiding problems such as large dust, drilling obstruction, and incomplete hole cleaning when drilling on the solidified concrete column, greatly improving the working efficiency of the tie bar implantation of the masonry wall, saving labor, and being safe and environmentally friendly. Description of the Drawings

[0014] Figure 1 is the overall structural schematic diagram of the pre-buried hole-making device of the utility model;

[0015] Figure 2 is the sectional view of the pre-buried hole-making device of the utility model;

[0016] Figure 3 is the structural schematic diagram of the cylindrical hole-making nail of the utility model;

[0017] Figure 4 is the structural schematic diagram of the conical hole-making nail of the utility model;

[0018] Figure 5 is the structural schematic diagram of the nail-taking tool of the utility model.

[0019] The reference numerals are explained as follows:

[0020] 1, concrete substrate; 2, formwork; 3, nail-taking tool; 301, handle; 302 / 303, wedge-shaped platform; 304, hammering platform; 4, hole-making nail; 401, nail-taking ring; 402, hole-making nail cap; 403, hole-making nail rod. Detailed Embodiments

[0021] The following describes the embodiments of the present disclosure in detail with reference to the accompanying drawings.

[0022] The following illustrates the implementation manners of the present disclosure through specific specific examples. Those skilled in the art can easily understand the other advantages and effects of the present disclosure from the content disclosed in this specification. Obviously, the described embodiments are only a part of the embodiments of the present disclosure, rather than all the embodiments. The present disclosure can also be implemented or applied through other different specific implementation manners. Various details in this specification can also be modified or changed based on different viewpoints and applications without departing from the spirit of the present disclosure. It should be noted that, without conflict, the following embodiments and the features in the embodiments can be combined with each other. All other embodiments obtained by those of ordinary skill in the art based on the embodiments in the present disclosure without creative efforts belong to the scope of protection of the present disclosure.

[0023] A device for pre-embedding and making holes for tie bars in masonry walls, as Figures 1 to 5 shown, includes a nail extractor 3 and a hole-making nail 4. The hole-making nail 4 includes three sections arranged in sequence: a hole-making nail cap 402, a nail extraction ring 401, and a hole-making nail rod 403, and the maximum outer diameters of the hole-making nail cap 402, the nail extraction ring 401, and the hole-making nail rod 403 decrease in sequence. The nail extraction ring 401 is pre-embedded in the concrete masonry wall, and the nail extraction ring 401 is located outside the concrete masonry wall. A hole-making nail cap 402 is provided at one end of the nail extraction ring 401 away from the hole-making nail rod 403. When extracting the nail, the nail extractor 3 is clamped onto the nail extraction ring 401, and the hole-making nail 4 is pulled outwards.

[0024] The utility model can easily pull out the pre-embedded hole-making device from the concrete through a simple nail extractor, thereby forming holes required for subsequent planting of tie bars in masonry walls, and avoiding problems such as large dust, drilling obstruction, and incomplete hole cleaning when drilling on the solidified concrete column.

[0025] Further, as an implementation manner of the present application, the nail extractor 3 includes a handle 301, and a hammering platform 304 is provided at the end of the handle 301. Wedge-shaped platforms 302 / 303 are vertically provided at both ends of the lower surface of the hammering platform 304. The distance between the two wedge-shaped platforms is greater than the outer diameter of the nail extraction ring 401 and less than the minimum dimension of the surface of the hole-making nail cap 402 close to the nail extraction ring 401. The horizontal cross-sectional area of the wedge-shaped platforms 302 / 303 gradually decreases from top to bottom.

[0026] The top view of the nail extractor 3 is integrally in a Π shape, and the side view is a wedge-shaped structure. The distance between the two wedge-shaped platforms 302, 303 is slightly greater than the outer diameter of the nail extraction ring 401. The thickness of the wedge-shaped platforms 302, 303 gradually increases from the end to the bottom hammering platform 304, forming a wedge-shaped cross-section structure.

[0027] When removing the nail, the lower ends of the wedge-shaped platforms 302 / 303 are respectively stuck on the outer periphery of the nail-removing ring 401. Hammer the upper surface of the hammering platform 304, causing the wedge-shaped platforms 302 / 303 to move downward. The outer surfaces of the wedge-shaped platforms 302 / 303 abut against the inner surfaces of the hole-making nail caps 402. Push the hole-making nail caps 402 outward through the extrusion force, and the hole-making nail caps 402 drive the hole-making nail rods 403 to move outward, thereby removing the hole-making nail rods 403.

[0028] The structure of the nail remover 3 of the present utility model is not limited to the structure described above. Based on the overall concept of the present utility model, any improvement to the structure of the nail remover 3 that can achieve the function of pulling out the hole-making nail 4 should fall within the protection scope of the present utility model.

[0029] Furthermore, the hole-making nail cap 402 can be a cuboid or an even-sided polygonal column, and at least one group of mutually parallel side surfaces are included in the even-sided polygonal column. The nail-removing ring 401 is a cylinder. The diameter of the nail-removing ring 401 is slightly larger than the maximum diameter of the hole-making nail rod 403 and smaller than the minimum dimension of the geometric body of the hole-making nail cap 402. The nail-removing ring 401 and the hole-making nail rod 403 form a small step.

[0030] Furthermore, the hole-making nail rod 403 is a long cone or a cylinder, the minimum diameter is greater than or equal to the minimum diameter of the bonded rebars for rebar planting, the length is slightly longer than the drilling depth requirement > 100 mm, and > 10d.

[0031] The specific use process of the embedded hole-making device for the masonry wall tie bars of the present utility model is as follows: positioning on the wooden formwork → drilling on the wooden formwork → installing the wooden formwork → pouring concrete → inserting the hole-making nail before it solidifies → curing the concrete → removing the hole-making nail → injecting glue → planting rebar → splicing the steel bars. As Figure 1 shown, compared with the traditional construction method, the significant advantage of the present utility model is that there is no need to drill holes in the concrete masonry wall, but instead, holes are drilled on the wooden formwork, which is better than drilling holes on the hard reinforced concrete column. Before the initial setting of the reinforced concrete column after pouring, insert the hole-making nail 4 into the hole reserved on the formwork 2. The diameter of the hole is slightly larger than the maximum diameter of the hole-making nail rod 403, and the diameter of the nail-removing ring 401 abuts against the formwork at the cross-section of the small step formed with the hole-making nail rod 403, restricting the insertion depth of the hole-making nail 4 into the concrete column. After the reinforced concrete column is poured and completed, before removing the formwork, insert the wedge-shaped nail remover 3 into the hole-making nail cap 402 and rotate it several times to loosen the contact surface between the hole-making nail 4 and the concrete. Then insert the wedge-shaped platforms 302 and 303 of the nail remover 3 between the nail-removing rings 401. The vertical surface of the wedge-shaped platform abuts against the formwork 2, and the inclined surface abuts against the hole-making nail cap 402, so that the wedge-shaped nail remover 3 is inserted between the hole-making nail cap 402 and the formwork 2. Hammer the hammering platform 304 with a hammer. Since the wedge-shaped nail remover 3 gradually thickens from the end to the bottom, using the principle of wedge block force amplification, the hole-making nail 4 is extruded out of the concrete member 1, thus forming a hole in the column concrete, which is convenient for subsequent glue injection and rebar planting.

[0032] The holes on the template 2 can be sealed with packing belts on the inner surface before installing the template to prevent slurry leakage, and they can also be easily pierced by the hole-making nails 4.

[0033] The handle 301 is fixedly connected to the hammering table 304, mainly serving as a tool for rotating the hole-making nail 4 and holding the wedge-shaped nail extractor 3.

[0034] Preferably, the distance between the two wedge-shaped platforms 302 / 303 is consistent with the minimum thickness between the two parallel sides of the hole-making nail cap 402. The advantage of this design is that before nail extraction, the two parallel planes of the hole-making nail cap 402 are clamped between the two wedge-shaped platforms 302 / 303, and the nail extractor 3 is rotated, thereby driving the hole-making nail 4 to rotate, using the nail extractor 3 as a rotating tool. After the hole-making nail 4 rotates and becomes loose, the two wedge-shaped platforms 302 / 303 are then clamped outside the nail extraction ring 401, and the upper surface of the hammering table 304 is struck downward to extrude the hole-making nail 4 out of the concrete masonry wall.

[0035] In the description of the present invention, it should be understood that the orientation or positional relationship indicated by the terms "middle", "length", "upper", "lower", "front", "rear", "vertical", "horizontal", "inner", "outer", "radial", "circumferential", etc. is based on the orientation or positional relationship shown in the drawings, and is only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and thus cannot be understood as a limitation to the present invention.

[0036] In the present invention, unless otherwise clearly specified and limited, the first feature being "on" the second feature may be that the first and second features are in direct contact, or the first and second features are indirectly in contact through an intermediate medium. The meaning of "a plurality" is at least two, such as two, three, etc., unless otherwise clearly and specifically limited.

[0037] In the present invention, unless otherwise clearly specified and limited, the terms "installed", "connected", "connected to", "fixed", etc. should be understood in a broad sense. For example, it may be a fixed connection, a detachable connection, or integrated; it may be a mechanical connection, an electrical connection, or communicable with each other; it may be directly connected, or indirectly connected through an intermediate medium, and may be the internal communication of two elements or the interaction relationship between two elements, unless otherwise clearly limited. For those of ordinary skill in the art, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0038] The above are only the embodiments for explaining the present utility model, and are not intended to limit the present utility model. For those skilled in the art, any modifications, equivalent replacements, improvements, etc. made without creative efforts within the spirit and principle of the present utility model shall be included within the protection scope of the present utility model.

Claims

1. A masonry wall tie bar pre-embedded hole making device, characterized in that: The invention comprises a nail extractor (3) and a hole-making nail (4); the hole-making nail (4) comprises a hole-making nail cap (402), a nail extractor ring (401) and a hole-making nail rod (403) which are arranged in sequence, and the outer diameters of the hole-making nail cap (402), the nail extractor ring (401) and the hole-making nail rod (403) are successively reduced; when in use, the nail extractor ring (401) is pre-buried in a concrete masonry wall, the nail extractor ring (401) is located outside the concrete masonry wall, and the hole-making nail cap (402) is arranged at one end of the nail extractor ring away from the hole-making nail rod (403); when removing the nail, the nail extractor (3) is clamped into the nail extractor ring (401) to pull the hole-making nail (4) outward.

2. The device for pre-embedded holes for tie bars in masonry walls according to claim 1, characterized in that: The nail remover (3) comprises a handle (301), a hammering platform (304) is arranged at the end of the handle (301); wedge-shaped platforms (302 / 303) are arranged at both ends of the lower surface of the hammering platform (304) and perpendicular to the hammering platform (304); the spacing between the two wedge-shaped platforms is larger than the outer diameter of the nail removing ring (401) and smaller than the minimum dimension of the surface of the hole-making nail cap (402) close to the nail removing ring (401); and the horizontal cross-sectional area of ​​the wedge-shaped platforms (302 / 303) gradually decreases from top to bottom.

3. The device for pre-embedded holes for tie bars in masonry walls according to claim 1, characterized in that: The hole-making nail cap (402) is a rectangular parallelepiped or an even-numbered polygonal column, and the even-numbered polygonal column comprises at least one set of mutually parallel side surfaces.

4. The device for pre-embedded holes for tie bars in masonry walls according to claim 1, characterized in that: The nail removal ring (401) is a cylinder.

5. The device for pre-embedded holes for tie bars in masonry walls according to claim 1, characterized in that: The hole-making nail rod (403) is an elongated cone or a cylinder.

6. The device for pre-embedded holes for tie bars in masonry walls according to claim 5, characterized in that: The minimum diameter of the hole-making nail rod (403) is greater than or equal to the minimum diameter of the tie bar to be implanted.

7. The device for pre-embedded holes for tie bars in masonry walls according to claim 1, characterized in that: The vertical side of the wedge-shaped platform (302 / 303) is close to the concrete masonry wall, and the inclined surface opposite to the vertical surface is in conflict with the hole-making nail cap (402).

8. The device for pre-embedded holes for tie bars in masonry walls according to claim 2, characterized in that: The distance between the two wedge-shaped platforms (302 / 303) is consistent with the minimum thickness between the two parallel side surfaces of the hole-making nail cap (402).

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