KR20240015260A - Box socket assembly for stud anchor bolt - Google Patents

Abstract

The present invention relates to an installation tool for stud anchor bolts. More specifically, a stud anchor bolt without a tightening head can be easily tightened and installed using an electric tool, and in particular, the outer thread of the stud anchor bolt can be prevented from being damaged during installation. It relates to installation holes for stud anchor bolts.
In order to achieve the above object, the installation tool for stud anchor bolts according to the present invention has a female thread portion at the front end to which the rear end male thread portion of the stud anchor bolt is fastened, a wrench groove at the rear end, and the female thread portion and It is characterized by comprising a box socket having a through hole formed through the wrench groove, and a support bolt inserted into the through hole and fastened to the rear end of the female threaded portion to support the end of the male threaded portion on the rear end.

Description

Installation tool for stud anchor bolt {BOX SOCKET ASSEMBLY FOR STUD ANCHOR BOLT}

The present invention relates to an installation tool for stud anchor bolts. More specifically, a stud anchor bolt without a tightening head can be easily tightened and installed using an electric tool, and in particular, the outer thread of the stud anchor bolt can be prevented from being damaged during installation. It relates to the installation hole for the stud anchor bolt.

Stud anchor bolts have male threads cut at both ends of a round bar, and do not have a tightening head.

Accordingly, the stud anchor bolt has a flat portion processed between the male threads, and installation is performed by holding the flat portion with a spanner or the like and rotating it.

However, when using a spanner, the work is cumbersome because the stud anchor bolt must first be drilled into the area where the stud anchor bolt is to be buried, and then additional knife blocks, etc. must be inserted, which has the disadvantage of requiring a lot of force and time to tighten with a spanner.

Accordingly, conventionally, stud anchor bolts have been installed directly by inserting the installation tool for the stud anchor bolt into a power tool (electric drill, impact drill, etc.).

Referring to Publication No. 20-2021-0001081, the conventional stud anchor bolt installation tool has a tool connection groove connected to the impact drill at one end of the socket body, and a hexagonal groove into which a nut or bolt is inserted at the other end. It is formed at a certain depth, and a spiral groove into which a bolt is screwed is formed at a certain depth on the bottom surface of the hexagonal groove.

After mounting this box socket on the power tool, if the power tool is operated so that the thread of the stud anchor bolt is fastened to the spiral groove, the stud anchor bolt tightened in the spiral groove is rotated together by the power tool, allowing the stud anchor bolt to be installed. It becomes possible.

However, the spiral groove of the box socket is first drilled, and then a tap is inserted into the hole to cut the spiral groove. The bottom of the spiral groove is formed into a sharp empty space in the shape of a drill (hereinafter referred to as the tip). However, if rotational pressure is continuously applied while the stud anchor bolt is tightened in the spiral groove, the male thread of the stud anchor bolt may be damaged as it is tightened by force at the tip, or the box socket cannot be separated from the stud anchor bolt. The problem occurred frequently.

Accordingly, the present invention was developed to solve the problems described above, allowing stud anchor bolts to be easily and quickly installed with power tools, while preventing damage to the male thread of the stud anchor bolt or non-separation of the box socket. The purpose is to provide an installation tool for stud anchor bolts that can be used.

In order to achieve the above object, the installation tool for stud anchor bolts according to the present invention,

A box socket having a female thread at the front end to which the rear end male thread of the stud anchor bolt is fastened, a wrench groove at the rear end, and a pass-through hole formed between the female thread and the wrench groove,

It is characterized in that it includes a support bolt that is inserted into the passage hole and fastened to the rear end of the female threaded portion to support the end of the rear male threaded portion.

And in the installation tool for stud anchor bolts according to the present invention,

The support bolt is characterized in that it is composed of a headless bolt.

In addition, in the installation tool for stud anchor bolts according to the present invention,

It is characterized in that a ball spring is mounted on the tip of the headless bolt.

In addition, in the installation tool for stud anchor bolts according to the present invention,

It further includes a box adapter having a first wrench part coupled to the wrench groove at the front end and a second wrench part for mounting a power tool at the rear end.

The installation tool for stud anchor bolts according to the present invention,

Using a box socket, you can quickly and easily install a stud anchor bolt with a power tool. The support bolt that forms the bottom of the female thread not only protects the male thread of the stud anchor bolt, but also prevents the box socket from being separated from the stud anchor bolt. There is,

The tip of the headless bolt or the end of the male thread can be safely protected and supported by the ball spring of the headless bolt.

A box adapter equipped with a wrench on both ends can be additionally connected, which is convenient as stud anchor bolts can be installed using various power tools such as an impact drill as well as a regular electric drill.

1A and 1B are exploded perspective views of the installation tool for stud anchor bolts according to the present invention.
Figure 2 is a combined cross-sectional view of the installation tool for stud anchor bolts according to the present invention.
Figure 3 is a diagram for explaining the one-touch fastening means of the present invention.

Since the present invention can be subject to various changes and can have various forms, implementation examples (or embodiments) will be described in detail in the text. However, this is not intended to limit the present invention to a specific posting form, and should be understood to include all changes, equivalents, and substitutes included in the spirit and technical scope of the present invention.

In each drawing, the same reference signs, especially the tens and ones digits, or the same tens, ones, and alphabets indicate members having the same or similar functions, and unless otherwise specified, each of the drawings The member indicated by the reference sign can be understood as a member that complies with these standards.

In addition, in each drawing, the components are expressed exaggeratedly large (or thick), small (or thin), or simplified in size or thickness in consideration of convenience of understanding, etc., but as a result, the scope of protection of the present invention is interpreted as limited. It shouldn't be.

The terms used in this specification are merely used to describe specific implementation examples (sun, aspect, aspect) (or examples), and are not intended to limit the present invention. Singular expressions include plural expressions unless the context clearly dictates otherwise.

In this application, terms such as ~include~ or ~consist of~ are intended to designate the presence of features, numbers, steps, operations, components, parts, or combinations thereof described in the specification, but are not intended to indicate the presence of one or more other features. It should be understood that this does not exclude in advance the possibility of the existence or addition of elements, numbers, steps, operations, components, parts, or combinations thereof.

Unless otherwise defined, all terms used herein, including technical or scientific terms, have the same meaning as commonly understood by a person of ordinary skill in the technical field to which the present invention pertains. Terms defined in commonly used dictionaries should be interpreted as having a meaning consistent with the meaning in the context of the related technology, and should not be interpreted in an ideal or excessively formal sense unless explicitly defined in the present application. No.

~First~, ~Second~, etc. described in this specification are only used to distinguish different components, and are not limited by the order of manufacture, and the names are used in the detailed description and claims of the invention. may not match.

In explaining the installation tool for stud anchor bolts according to the present invention, for convenience, if a rough, non-strict direction standard is specified with reference to FIG. 1, the direction in which gravity acts is set to the lower side, and the up, down, left, and right are determined as shown, In the detailed description and claims of the invention related to other drawings, directions are specified and described according to this standard, unless otherwise specified.

Hereinafter, the installation tool for stud anchor bolts according to the present invention will be described with reference to the attached drawings.

As shown in FIGS. 1 and 2, the present invention relates to an installation tool for stud anchor bolts, and largely includes a box socket 20, a support bolt, and a box adapter 40.

First, the stud anchor bolt 10 is provided with a front end male thread portion 11 at the front end and a rear end side male thread portion 12 at the rear end, and a flat portion 13 is formed between the male thread portions 11 and 12. In this case, the front end male threaded part 11 is installed on a wall, etc., and then a bracket and nut are fastened to the rear end male threaded part 12 to install a wash basin, etc.

At this time, the stud anchor bolt 10 limited in the present invention is a general name for a type of bolt without a head or tool groove for fastening installation,

It is not limited to the form provided with the front end male thread portion 11, the rear end male thread portion 12, and the flat portion 13,

For example, it is revealed that the present invention can be applied to forms such as an electric bolt in which threads are formed on the entire outer peripheral surface of a round bar without a head.

Again, the box socket 20 has a female thread 21 of a predetermined depth formed at the distal end, and a square wrench groove 22 is formed at the rear of the female thread 21.

In addition, the through hole 23 is formed through the bottom of the female thread 21, so that the female thread 21 and the wrench groove 22 are in communication with each other. At this time, the diameter of the through hole 23 is It corresponds to the thread diameter of the female thread portion 21.

The support bolt is inserted into the passage hole 23 through the wrench groove 22 and screwed to the female thread portion 21.

These support bolts are especially composed of headless bolts (30).

The headless bolt 30 has a bare head point 31 and a hexagonal groove for a wrench is formed on the rear side.

Accordingly, when the headless bolt 30 is inserted into the through hole 23 with a hexagonal wrench and tightened, the headless bolt 30 is screwed to the female thread portion 21 to form the bottom of the female thread portion 21.

In addition, the support bolt may be a headless bolt 30 equipped with a ball spring 32 at the distal end.

The hollow head point 31 or ball spring 32 of the headless bolt 30 supports the rear end of the stud anchor bolt 10 so that the rear end male thread portion 12 is deeply fastened beyond the female thread portion 21. prevent it from happening.

Furthermore, the present invention further provides a box adapter 40 having a first wrench part 41 coupled to the wrench groove 22 at the front end and a second wrench part 42 for mounting a power tool at the rear end. Includes.

The box adapter 40 is in the form of a bit in which wrench parts 41 and 42 of different diameters are connected back and forth, and the square first wrench part 41 and the hexagonal second wrench part 42 are connected in a rod shape. It is done.

At this time, the box socket 20 and the box adapter 40 have a plurality of different specifications of the female thread part 21, the wrench groove 22, and the first wrench part 41 and the second wrench part 42, respectively. It is preferable that it consists of a set.

Describing an embodiment of the present invention having this configuration,

First, the box socket 20 can be used by directly mounting it on an impact drill using the wrench groove 22.

When the impact drill is operated while the stud anchor bolt 10 is temporarily coupled to the female thread 21 of the box socket 20, the box socket 20 is connected to the rear end male thread 12 of the stud anchor bolt 10. After being fastened, as the stud anchor bolt 10 rotates together, the front side male thread portion 11 is fastened and installed on the wall, etc. by screwing.

At this time, the outer end of the stud anchor bolt 10 is supported by the hollow head point 31 or the ball spring 32 of the headless bolt 30 inside the female thread portion 21 of the box socket 20. ,

Even if the rotational pressure of the impact drill continues to be applied to the box socket (20) when the stud anchor bolt (10) is installed (in a state where it is no longer rotating and is driven in), there is excess space between the stud anchor bolt (10) and the box socket (20). Since insertion does not occur, it is possible to prevent the rear end male thread portion 12 from being damaged as well as to prevent the box socket 20 from being separated due to over-insertion.

In addition, after mounting the second wrench part 42 of the box adapter 40 by inserting it into the chuck or bit holder of an electric drill, the first wrench part 41 is inserted into the wrench groove 22 to insert the box adapter 40 ), when the box socket (20) is installed, the stud anchor bolt (10) can be tightened and installed with the box socket (20) using an electric drill, and then only the box socket (20) can be loosened and separated from the stud anchor bolt (10). there is.

In this way, the present invention allows the installation tool of the present invention to be selectively used to suit the power tools owned, such as an impact drill or electric drill, by using the box socket 20 alone or together with the box adapter 40.

Meanwhile, the present invention introduces a one-touch fastening means 50 to the box socket 20 to make screw connection with the stud anchor bolt 10 easier.

Referring to FIG. 3, first, the box socket 20 has an unthreaded fastening hole 212 formed in the pipe portion 211 instead of the female thread portion 21, and a part of the pipe portion 211 is formed in the radial direction. An emerging groove 213 is formed penetrating through.

And the one-touch fastening means 50 is fitted by overlapping forward and backward in the rising groove 213, and includes a long groove-shaped fitting hole 51 formed to communicate with the fastening hole 212, and the fitting hole 51. It includes a pair of push bars (50A) (50B) protruding from one inner peripheral surface and having a row of locking threads (52) capable of engaging with the male thread portion (12),

The pair of push bars 50A and 50B are fitted so that their respective locking threads 52 are opposed to each other, and are slidably coupled so as to be pushed in the protruding direction of the locking threads 52.

The fastening hole 212 has an inner diameter corresponding to the thread of the male thread portion 12, so that the male thread portion 12 can be directly inserted into the pipe portion 211 without being screwed together.

The push bars (50A) (50B) are arranged symmetrically to each other, and the fitting hole (51) has a long groove shape with a width larger than the fastening hole (212), and each push bar (50A) (50) B) The locking threads 52 are arranged to face each other.

The locking screw thread 52 has a spiral shape that engages the screw groove of the male screw portion 12, and unlike regular screw threads, it is formed without a groove and with one row of ridges protruding.

Although not shown in the drawing, a pair of push bars (50A) (50B) are restrained by a locking structure and operate to slide against each other, and at this time, the push bars (50A) (50B) are moved away from each other by an elastic body such as a torsion spring (not shown). It is braced to slide in one direction.

Accordingly, when no external force is applied, the pair of push bars 50A and 50B slide in opposite directions so that the overlapping fitting holes 51 form the same circular shape as the fastening hole 212.

And when the pair of push bars (50A) and (50B) are pressed at the same time, the overlapping width of the fitting holes (51) widens and the locking thread (52) is pushed out of the inner diameter of the fastening hole (212).

In this state, when the pipe part 211 of the box socket 20 is inserted into the male thread part 12, the box socket 20 is inserted into the stud anchor bolt 10 without the screw being caught, and then the box socket 20 is inserted into the stud anchor bolt 10. When you release your hand, the push bars (50A) (50B) return to their original positions.

Then, when the box socket 20 is rotated 1 to 2 times in the screw tightening direction, the locking thread 52 engages with the groove of the male screw portion 12 and is tightened.

In this state, by rotating the box socket (20) using an electric tool, the installation of the stud anchor bolt (10) is completed, and the box socket (20) can be easily removed right away by pressing the push bars (50A) (50B). .

In the above description of the present invention, the installation tool for stud anchor bolts has been mainly described with reference to the accompanying drawings. However, the present invention can be variously modified, changed, and replaced by those skilled in the art, and such modifications, changes, and substitutions are possible in accordance with the present invention. It should be interpreted as falling within the scope of protection.

10: Stud anchor bolt 11: Front side male thread portion
12: Rear end external threaded portion 13: Flat portion
20: box socket 21: female thread part
22: Wrench groove 23: Pass hole
30: Headless bolt 31: Slim head point
32: Ball spring
40: Box adapter 41: First wrench part
42: second wrench part

Claims (4)

A box socket having a female thread at the front end to which the rear end male thread of the stud anchor bolt is fastened, a wrench groove at the rear end, and a pass-through hole formed between the female thread and the wrench groove,
An installation tool for a stud anchor bolt, characterized in that it includes a support bolt that is inserted into the through hole and fastened to the rear end of the female threaded portion, and supports the end of the rear male threaded portion.
According to claim 1,
An installation tool for stud anchor bolts, characterized in that the support bolt is composed of a headless bolt.
According to claim 2,
An installation tool for stud anchor bolts, characterized in that a ball spring is mounted on the tip of the headless bolt.
According to claim 2 or 3,
An installation tool for a stud anchor bolt, further comprising a box adapter having a first wrench part coupled to the wrench groove at the front end and a second wrench part for mounting a power tool at the rear end.

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