KR102570493B1 - Pipe Connection Structure - Google Patents

Abstract

The pipe connection structure of the present invention can secure strong binding force between pipes without welding, and is safe and aesthetically excellent because the fastening member is not exposed to the outside of the pipe, can be easily performed by beginners, and requires less installation time. It is an object to provide a pipe connection structure capable of having this shortening effect.
Accordingly, a pipe connection structure according to an embodiment of the present invention is a structure in which a plurality of square pipes having open ends are connected, including a base pipe; A link pipe orthogonally coupled to the base pipe; A fixing bracket interpolated horizontally from the outer surface of the link pipe to a predetermined depth inside the front end; and a fastening bracket inserted into a predetermined depth from the front end opening of the link pipe and in close contact with the upper surface of the fixing bracket.

Description

Pipe Connection Structure {Pipe Connection Structure}

The present invention relates to a pipe connection structure, and more particularly, in orthogonally connecting a plurality of square pipes, forming a plurality of grooves and through holes in a base pipe serving as a pillar, and forming a plurality of grooves and through holes in a link pipe coupled to the base pipe. It forms a plurality of protrusions corresponding to the grooves and through holes, inserts a plurality of brackets inside the coupling part of the link pipe, fixes it with a pop nut, combines the link pipe to the base pipe, and connects the link pipe and the plurality of brackets with wrench bolts through the through hole. When fixed while penetrating the bracket, the base pipe and link pipe are quickly and simply joined without welding, so even beginners can easily and firmly join the pipes together, and there are no protruding parts or welding marks on the coupling surface, making it safe and secure. It relates to a pipe connection structure that enables a beautiful appearance.

In general, constructing the frame of a building in a vertical or horizontal combination by orthogonally connecting square pipes to each other is a commonly practiced technique, and depending on the use and purpose, the shape and structure of the pipe, the joining method, and the size and material suitable for it are selected. It is used in various ways as it is applied and improved differently.

As an example, there are structures used as clothes hangers at home, structures used for shelving in offices, marts, factories, etc., and on a large scale, scaffolding structures installed for external aisles or safety guards at construction sites The same case can be said to be a structure by connecting multiple pipes.

In the case of a frame structure for home or business use, in combining a number of orthogonal pipes, the pipes are inserted in each direction into the cross-shaped joint connecting the pipes and then bolts are inserted from the outside of the joint to tighten while pressing the outside of the pipe. The shape is generally used. In this case, the shape of the coupler is exposed to the outside and the appearance is not good, and the pipes are supported only by loosely fastened couplers and bolts, so there is a practical problem in that the use is limited due to weak load.

In the case of a large shelf for storing goods in a business or a scaffolding structure built at a construction site, the frame can be connected and inserted into a coupler to be mutually fastened, or it can be interconnected without a coupler. It is fixed with a nut or welded to bind the joint.

In this case, the bearing capacity and durability can be secured, but the aesthetics are impaired because the fastening members such as bolts are exposed to the outside of the coupling, making it unsuitable for use inside businesses. However, things may be damaged, and since the welding work must be performed in a separate location by specialized personnel, various constraints such as cost, time, and space follow.

Accordingly, there is a need for a device and structure in which anyone can easily and simply connect pipes without a welding process and create a strong structure.

Republic of Korea Patent Registration No. 10-2171762

The present invention was created in order to solve the above problems in the prior art, and it is possible to secure strong binding force between pipes without welding, and it is safe and aesthetically pleasing because the fastening member is not exposed to the outside of the pipe. An object is to provide a pipe connection structure that is excellent, can be easily performed by beginners, and can have the effect of reducing installation time.

The above objects and various advantages of the present invention will become more apparent from preferred embodiments of the present invention by those skilled in the art.

The present invention is to achieve the above object,

A pipe connection structure according to an embodiment of the present invention includes a base pipe; A link pipe orthogonally coupled to the base pipe; A fixing bracket interpolated horizontally from the outer surface of the link pipe to a predetermined depth inside the front end; and a clamping bracket which is inserted into the front end opening of the link pipe to a predetermined depth and closely adheres to the upper surface of the fixing bracket. A support hole formed with a long hole in a shape corresponding to the support groove at a position spaced a predetermined distance from the end edge of one side in the longitudinal direction to the inside; A base fastening hole formed through a hole between the support groove and the support hole on one side; And a base insertion hole formed through a through hole on the other surface so as to face the one surface; including, a link pipe, a locking protrusion protruding from the upper edge of the front end so as to fit over the support groove; A fitting protrusion protruding from the lower edge of the front end to be inserted into the support hole and fitted; A link insertion hole formed with a long hole on the other side between the upper and lower rims to insert the fixing bracket; And a link fastening hole opposite to the link insertion hole and formed on one side of a long hole with a shorter length than the link insertion hole; further comprising a fixing bracket, a fixing protrusion protruding from one side edge so as to be fitted into the link fastening hole; and a fixed fastening hole having a predetermined shape through which a through hole is formed in the center and into which a pop nut is inserted, and the fastening bracket includes a fastening fastening hole formed through a through hole in a shape corresponding to the fixed fastening hole, It is disposed opposite to the base fastening hole, fastening fastening hole, and fixed fastening hole, and the fastening member passes through each through hole and is fastened to the fixing member, and the link pipe is coupled and fixed to the base pipe.

According to one embodiment, the link insertion hole is formed to correspond to the shape of the insertion surface of the fixing bracket, and the link fastening hole is formed to correspond to the shape of the fixing protrusion, so that the fixing bracket is inserted into the link pipe on one side but not separated from the other side. The tightening bracket is configured to match the inner end surface of the link pipe and is inserted into the link pipe while in contact with the fixing bracket to fix the fixing bracket without shaking.

According to one embodiment, a pop nut is used as the fixing member, a wrench bolt inserted into the pop nut is used as the fastening member, and the base insertion hole has a larger diameter than the base fastening hole and the wrench bolt head, and the base fastening hole is characterized in that it is composed of a smaller diameter than the wrench bolt head.

According to one embodiment, the fastening hole and the fastening hole are formed as hexagonal through holes, the pop nut is a hexagonal pop nut, and the wrench bolt is characterized in that a hexagonal wrench bolt is used.

According to one embodiment, the fixing bracket, the other side end surface coincides with the link insertion hole to form a plane with the other side surface of the link pipe and does not protrude, and the fixing protrusion matches the link fastening hole to form a plane with one side surface of the link pipe and protrudes. characterized in that it does not.

Details of other embodiments are included in the detailed description and drawings.

According to the pipe connection structure of the present invention, the following effects can be obtained.

First, when coupling pipes to each other, welding is not required and strong binding force can be obtained.

Second, the brackets for fastening the pipes to each other are accommodated inside the pipes and are not exposed to the outside, so the appearance is beautiful.

Third, the bracket is composed of a fixing bracket for fastening bolts and nuts and a fastening bracket for firmly fixing the fixing bracket inside the pipe. A strong bond can be formed between the pipe and the pipe.

Fourth, since the base pipe and the link pipe are coupled by protrusions, grooves, and through holes, and a plurality of brackets are simply inserted and mounted by hand, even beginners can easily work, and there is an effect of reducing costs and time.

1 is a perspective view showing a coupled state of a pipe connection structure according to an embodiment of the present invention.
2 is an exploded perspective view of a state prior to coupling of a base pipe and a link pipe of a pipe connection structure according to an embodiment of the present invention.
3 is an exploded perspective view of a link pipe, a fixing bracket, and a tightening bracket before coupling according to an embodiment of the present invention.
4 is a perspective view showing a state in which a structure is formed by combining a base pipe and a plurality of link pipes according to an embodiment of the present invention.
5 is a perspective view showing a form in which a shelf plate is mounted on a base pipe according to an embodiment of the present invention.
6 is an exploded perspective view of a link pipe, a fixing bracket, and a tightening bracket before coupling according to an embodiment of the present invention.
6 is a front view of a base pipe and a link pipe before coupling according to an embodiment of the present invention.
7 is a top view before coupling of a base pipe and a link pipe according to an embodiment of the present invention.
8 is a top view of a fixing bracket and a tightening bracket according to an embodiment of the present invention.
9(a) to (b) are cross-sectional views showing before and after coupling of pop nuts to fixing brackets and fastening brackets according to an embodiment of the present invention.
10 (a) to (b) are cross-sectional and perspective views illustrating a state in which a wrench bolt is fastened to a pop nut in a state in which a base pipe and a link pipe are coupled according to an embodiment of the present invention.
11 is an exploded perspective view of a base pipe base insertion hole and a leg bracket before coupling according to a further embodiment of the present invention.
12 is a cross-sectional view showing a coupling process between a base insertion hole of a base pipe and a leg bracket according to a further embodiment of the present invention.
13 is an exploded perspective view of the base insertion hole of the base pipe and the leg bracket before coupling according to another embodiment of FIGS. 11 and 12;

In order to fully understand the present invention, preferred embodiments of the present invention will be described in more detail with reference to the accompanying drawings.

Prior to the description of the present invention, the following specific structural or functional descriptions are merely exemplified for the purpose of explaining embodiments according to the concept of the present invention, and embodiments according to the concept of the present invention may be modified and implemented in various forms. However, it should not be construed that the scope of the present invention is limited to the examples described in detail below.

In addition, since the embodiments according to the concept of the present invention can have various changes and various forms, specific embodiments are illustrated in the drawings and described in detail herein.

However, this is not intended to limit the embodiments according to the concept of the present invention to a specific form disclosed, and should be understood to include modifications, equivalents, or substitutes included in the spirit and scope of the present invention.

This embodiment is provided to more completely explain the present invention to those with average knowledge in the art. Therefore, the shapes of elements in the drawings may be exaggerated to emphasize a clearer explanation.

It should be noted that in each drawing, the same members are sometimes indicated by the same reference numerals. Detailed descriptions of well-known functions and configurations that may unnecessarily obscure the subject matter of the present invention are omitted.

1 is a perspective view showing a coupled state of a pipe connection structure according to an embodiment of the present invention, and FIG. 2 is an exploded perspective view of a pipe connection structure according to an embodiment of the present invention before coupling a base pipe and a link pipe. 3 is an exploded perspective view of a link pipe, a fixing bracket, and a tightening bracket before coupling according to an embodiment of the present invention, and FIG. 4 is a coupling of a base pipe and a plurality of link pipes according to an embodiment of the present invention. FIG. 5 is a perspective view showing a form in which a shelf plate is mounted on a base pipe according to an embodiment of the present invention, and FIG. 6 is a link according to an embodiment of the present invention. An exploded perspective view of a pipe, a fixing bracket, and a tightening bracket before coupling, and FIG. 6 is a front view of a base pipe and a link pipe before coupling according to an embodiment of the present invention, and FIG. 7 is a base according to an embodiment of the present invention. It is a top view before coupling the pipe and the link pipe, and FIG. 8 is a top view of a fixing bracket and a clamping bracket according to an embodiment of the present invention, and FIG. 9 (a) to (b) are in one embodiment of the present invention 10 (a) to (b) are cross-sectional views showing before and after coupling of the pop nut to the fixing bracket and the clamping bracket according to the present invention, in a state in which the base pipe and the link pipe are coupled according to an embodiment of the present invention. 11 is an exploded perspective view of a base pipe base insertion hole and a leg bracket before coupling according to an additional embodiment of the present invention, and FIG. 12 is an additional embodiment of the present invention. A cross-sectional view showing a process of coupling the base insertion hole of the base pipe and the leg bracket according to the embodiment, and FIG. 13 is an exploded perspective view of the base insertion hole of the base pipe and the leg bracket before coupling according to another embodiment of FIGS. 11 and 12 am.

The pipe connection structure 10 according to a preferred embodiment of the present invention is a structure in which a plurality of square pipes are orthogonally connected to form a frame such as a shelf, and can be quickly, simply, and firmly coupled without welding, so that even beginners can install it easily and conveniently. At this time, the pipe can be used as a pipe with both ends open and the inside empty.

The pipe connection structure 10 of the present invention includes a base pipe 100, a link pipe 200, a fixing bracket 300, a fastening bracket 400, a fixing member 500, and a fastening member ( 600) may be configured.

The base pipe 100 serves as a pillar while being installed vertically, and the link pipe 200 is connected horizontally or vertically to the base pipe 100. As an embodiment, a plurality of base pipes 100 are arranged at regular intervals In this state, both ends of the link pipe 200 are coupled to one or all sides of the base pipe 100, connecting each base pipe 100, so that a structure forming a frame in the form of a grid like a shelf can be provided as a whole.

The fixing bracket 300 and the tightening bracket 400 are interpolated to the front end of the link pipe 200, and the fixing member 500 is inserted into the link pipe 200 in a state where each bracket 300 400 is mounted, so that each bracket ( 300 and 400) are fixed to the link pipe 200, and in this state, after the link pipe 200 is coupled to the base pipe 100, the fastening member 600 penetrates the base pipe 100 and attaches to the fixing member 500. is concluded

In a preferred embodiment of the present invention, a pop nut 510 may be used as the fixing member 500, and a wrench bolt 610 may be used as the fastening member 600.

With this structure, the base pipe 100, the link pipe 200, the fixing bracket 300, and the tightening bracket 400 are combined, and each of the pipes 100 and 200 and the bracket ( 300 and 400) can form a mutually fastened state and maintain a solid coupling state.

Hereinafter, each component will be described in detail.

As described above, the base pipe 100 is erected vertically to serve as a pillar, but this is only a setting according to one embodiment, and the link pipe 200 serves as a pillar installed vertically and the base pipe 100 is installed horizontally Since it may serve as a shelf, the division of roles is not fixed, and more clearly, the base pipe 100 may be provided with a function and form to accommodate the coupling of the link pipe 200.

The link pipe 200 of the present invention has a structure in which the front end is orthogonal to and coupled to one surface of the base pipe 100. As the first embodiment of the present invention, the link pipe 200 has a predetermined surface of the base pipe 100 When coupled to a position, it can be a frame function formed to support a shelf connecting a plurality of basepipes 100, and as the second embodiment of the present invention, the link pipe 200 is the front end of the basepipe 100 When coupled to, it can be a frame function formed to support the ceiling or floor surface.

The base pipe 100 may include a support groove 110 , a support hole 120 , a base fastening hole 130 and a base insertion hole 140 .

The support groove 110 is formed at a predetermined location on one side of the base pipe 100. In the case where the support groove 110 is formed biased from the front end of one side of the base pipe 100 toward the inside toward the center in the first embodiment, it has a long hole shape. In the case of the second embodiment, when it is formed on the front edge, it becomes a concave shape. In the case of the second embodiment, it is preferably formed with a predetermined depth and width in the center of the front edge on one side, but it can be formed in a narrow and long rectangle. .

The support hole 120 is provided as a long hole formed at a position spaced apart from the support groove 110 by a predetermined distance from the support groove 110 on one side of the base pipe 100 to the inside in the longitudinal direction.

That is, the support hole 120 has a shape similar to the support groove 110 and is provided in the lower direction of the support groove 110 but is provided on one surface of the base pipe 100, so it is formed as a long hole, and the support groove 110 is a support hole It has a shape corresponding to (120), but in the second embodiment, when provided on the front edge of one side of the base pipe 100, it is formed in a concave shape with an open top, and in the first embodiment, a predetermined position in the center of one side of the base pipe 100 When provided in, it is formed as a long hole similar to the support hole 120.

As the first embodiment of the present invention, when the link pipe 200 is coupled to a predetermined position on one surface of the base pipe 100, the base pipe 100 includes the support groove 110 and the support hole 120 described above ( 110), a pair of support holes 120 are provided in a spaced apart state at a predetermined interval, and a base fastening hole 130 to be described later may be formed therebetween.

With the support holes 120 provided as a pair on one surface of the base pipe 100 in this way, the link pipe 200 has a locking protrusion 210 and a fitting protrusion 220, which will be described later, corresponding to the respective protrusions 210 and 220. When inserted into the support hole 120 to be inserted, once the link pipe 200 is orthogonally coupled to a predetermined position on one side of the base pipe 100.

Alternatively, as the second embodiment of the present invention, when the link pipe 200 is coupled to the front end of the base pipe 100, the base pipe 100 has a support groove 110 formed on the edge of the front end and is spaced apart at a predetermined interval. A support hole 120 may be formed.

In this way, in the second embodiment, the link pipe 200 is engaged with the protrusion 210 of the link pipe 200 is engaged with the support groove 110, and the fitting protrusion 220 is fitted into the support hole 120, and the link pipe 200 is connected to the base. It has a form orthogonally coupled to the front end of the pipe 100.

After all, the support groove 110 and the support hole 120 have a similar shape and are configured as a pair while being arranged at a predetermined distance apart, but if the link pipe 200 is coupled to a predetermined position inside one surface of the base pipe 100, the support The groove 110 is deformed in the same shape as the support hole 120 to form two support holes 120, and if the link pipe 200 is coupled to the front end of one surface of the base pipe 100, the support groove 110 Is similar to the support hole 120, but is formed in an original concave shape with an open top and is configured to match the support hole 120.

However, in FIGS. 1 to 10, as the second embodiment of the present invention, the support groove 110 and the support hole 120 are configured to match, and the link pipe 200 is orthogonally coupled to the front end of the base pipe 100. And, in the following description, the description is based on the second embodiment, but the support groove 110 can be interpreted in the same way as the structure and function of the support hole 120, and therefore, the shape and coupling structure of each component The first or second embodiment can be equally applied.

Hereinafter, description will be made based on the second embodiment of the present invention.

The base fastening hole 130 is a hollow formed on one surface of the base pipe 100 and is formed between the support groove 110 and the support hole 120 .

The base insertion hole 140 is formed in a hollow on the other side facing the one side of the base pipe 100, and is formed to face the base fastening hole 130 and may have a larger diameter than the base fastening hole 130. there is.

The base insertion hole 140 and the base fastening hole 130 are formed oppositely, but the difference in diameter is to bind the base pipe 100 and the link pipe 200 using the wrench bolt 610, specifically The diameter of the base insertion hole 140 is formed larger than the diameter of the wrench bolt 610 head 611, and the diameter of the base fastening hole 130 is formed smaller than the diameter of the wrench bolt 610 head 611 It is desirable to do

That is, in order for the wrench bolt 610 to be inserted into the inside of the base pipe 100 through the base insertion hole 140, the diameter of the base insertion hole 140 is formed larger than the diameter of the head 611 of the wrench bolt 610. This is because the insertion of the wrench bolt 610 can be performed easily, and when the wrench bolt 610 is bound to the link pipe 200 through the base fastening hole 130 inside the base pipe 100, the wrench bolt 610 Since the head 611 of ) has a larger diameter than the base fastening hole 130, the wrench bolt 610 does not fall in the direction of the link pipe 200 and can be mounted on the inner surface of the base fastening hole 130. am.

In this way, the support groove 110, the base fastening hole 130, and the support hole 120 are formed side by side on one surface of the base pipe 100, and the other surface facing the one surface faces the base fastening hole 130. (140) is formed.

At this time, if one side and the other side of the base pipe 100 are referred to as the first side and the third side, in the same way, the base pipe 100 is formed between the first side and the third side at the tip and the second side facing each other A fourth surface may exist. At this time, on the second surface, the support groove 110, the base fastening hole 130, and the support hole 120 are formed side by side with the same or similar size and shape as the first surface, and the fourth surface A base insertion hole 140 having a relatively large diameter may be formed while facing the base fastening hole 130.

If the support groove 110 to the base fastening hole 130 are formed only on one side and the other side, that is, the first side and the third side, the link pipe 200 can be coupled only in the direction of the first side of the base pipe 100. Otherwise, if formed on both the first and second surfaces, a plurality of link pipes 200 can be coupled to the first and second surfaces of the base pipe 100, so that the vertical installation of the base pipe 100 At the top, two link pipes 200 orthogonal to the base pipe 100 and orthogonal to each other may be coupled.

The link pipe 200 is a square pipe having the same or similar inner diameter as the base pipe 100 and is fitted into the support groove 110 and the support hole 120 of the base pipe 100. As an embodiment, the base pipe ( 100), it can be orthogonally coupled and mounted horizontally with the ground.

The link pipe 200 may be formed to include a locking protrusion 210, a fitting protrusion 220, a link insertion hole 230, and a link fastening hole 240 for this purpose.

The protrusion 210 is a protrusion of a predetermined width and height protruding from the upper edge of the front end of the link pipe 200, and the central portion of the upper edge protrudes while extending a predetermined length.

The formation position of the protrusion 210 corresponds to the support groove 110 of the base pipe 100, so that the width and thickness of the protrusion 210 are formed to match or be smaller than the width and thickness of the support groove 110. , The height of the protrusion 210 may be formed equal to or longer than the thickness of the support groove 110 .

The fitting protrusion 220 protrudes from the lower rim of the front end of the link pipe 200 in the same or similar shape as the protrusion 210, and may be formed to correspond to the support hole 120 of the base pipe 100.

When the link pipe 200 is coupled to the base pipe 100 in this shape, the locking protrusion 210 is fitted in a shape that rests on the support groove 110, and the fitting protrusion 220 is the support hole 120 As it is inserted into and fitted, the link pipe 200 and the base pipe 100 are orthogonal and form a fitted state.

At this time, the protrusion 210 rests on the support groove 110 whose upper end is open, so it is not coupled to the base pipe 100, but guides for positioning the link pipe 200 orthogonally to the base pipe 100 function.

When the fitting protrusion 220 is inserted into the support hole 120, the cross section of the fitting protrusion 220 and the cross section of the support hole 120 are correspondingly formed so that the fitting protrusion 220 is inserted into the support hole 120. It is tightly coupled to the fitting protrusion 220 and the support hole 120 so that it cannot be moved.

Therefore, as the fitting protrusion 220 extending from the edge of the link pipe 200 is inserted into the support hole 120, the link pipe 200 is eventually coupled to the base pipe 100 in an orthogonal form, and at the same time, the fitting protrusion 220 ) is caught on the support hole 120 and serves as a support, so that the link pipe 200 can maintain an orthogonal state without falling out of the base pipe 100.

However, in the above state, since the pipes 100 and 200 are not fastened and can be separated, a fixing bracket 300 and a tightening bracket 400 may be provided to firmly maintain and fix the coupled state, and the fixing bracket ( 300) may be formed with a link insertion hole 230 and a link fastening hole 240 in the link pipe 200 for mounting.

The link insertion hole 230 is a long hole formed on the other side surface formed between the upper rim and the lower rim so that the fixing bracket 300 is inserted from the side.

A link fastening hole 240 is formed on one side opposite to the other side. The link fastening hole 240 is opposite to the link insertion hole 230 and is formed as a long hole with a shorter length than the link insertion hole 230, and the thickness is a link It is formed in the same way as the insertion hole 230.

Preferably, the link insertion hole 230 is configured in a shape so that the fixing bracket 300 can be inserted horizontally with the cross section of the link pipe 200 on one side of the link pipe 200, but the link insertion hole 230 The length may be formed to fit the entire width of the other side surface excluding the upper and lower edge thicknesses on the other side surface.

The link insertion hole 230 and the link fastening hole 240 are so that the fixing bracket 300 can be interpolated and coupled to the link pipe 200 horizontally with the cross section of the link pipe 200 in the lateral direction of the link pipe 200. It is a component for

The fixing bracket 300 and the tightening bracket 400 are inserted and mounted into the link pipe 200, after each bracket 300 400 is inserted into the link pipe 200 in a state in which they are closely provided as a pair. A procedure in which the link pipe 200 is coupled to the base pipe 100 is performed.

The fixing bracket 300 is plate-shaped and has a shape corresponding to the cross section of the link pipe 200 and is inserted while penetrating from the outer surface of the link pipe 200 in the lateral direction, and is interpolated horizontally to a predetermined depth inside the front end.

The clamping bracket 400 is also plate-shaped and has a shape corresponding to the cross section of the link pipe 200, which is interpolated to the link pipe 200 in a shape that is stacked on the fixing bracket 300, but unlike the fixing bracket 300, the link pipe ( 200) is fitted to a predetermined depth from the upper direction of the front end opening.

After the fixing bracket 300 is first interpolated into the link pipe 200, the tightening bracket 400 is interpolated and may be located at the front end of the link pipe 200 in a state of being stacked on the upper surface of the fixing bracket 300, which is the fixing bracket This is because the link pipe 200 is provided in a hooked state at the front end of the link pipe 200. Therefore, the fixing bracket 300 and the tightening bracket 400 have a slightly different shape.

First, the fixing bracket 300 is provided with a fixing protrusion 310 protruding in a rectangular shape of a predetermined size on one side edge, and the fixing protrusion 310 is attached to the link fastening hole 240 so as to be fitted and coupled to the link fastening hole 240. The corresponding shape may be formed in the same or smaller size than the link fastening hole 240 .

Assuming that the fixing bracket 300 is inserted in the left and right directions at the opening of the link pipe 200, the vertical width of the fixing bracket 300 is formed to a length corresponding to the vertical width of the inner circumferential surface of the link pipe 200, , The left and right widths of the fixing protrusion 310 of the fixing bracket 300 are formed to a length corresponding to the outer circumferential surface of the link pipe 200, and the left and right widths are based on the steps on both sides of the fixing protrusion 310. It may be formed with a corresponding length from the left inner circumferential surface to the right outer circumferential surface of.

Therefore, when the fixing bracket 300 is inserted into the link pipe 200, the outer circumferential surface of the fixing bracket 300 does not protrude from the outer circumferential surface of the link pipe 200 and forms a single surface with the link pipe 200 at the same height. As a result, the appearance is beautiful, there is no risk of safety accidents, and the best orthogonal coupling state can be achieved.

A fixed fastening hole 320 is through-hole formed in the center of the fixing bracket 300. The fixed fastening hole 320 is a hole into which the pop nut 510 is inserted and may be formed to match the shape of the outer circumferential surface of the pop nut 510. , As an embodiment, in the present invention, it is assumed that the hexagonal outer circumferential surface pop nut 510 is used, and therefore the fixing hole 320 may also be formed in a regular hexagon.

The fixing bracket 300 is inserted into the link insertion hole 230 formed on the other side with the fixing protrusion 310 as the head, and the fixing bracket 300 horizontally penetrates the link pipe 200 to form a link pipe 200 When the fixing protrusion 310 is fitted into the link fastening hole 240 when it reaches one side of the fixing protrusion 310, the tip of the fixing protrusion 310 coincides with the surface of one side of the link pipe 200, and the lower portion of both sides of the fixing protrusion 310 Both side ends of the fixing bracket 300 formed in steps are in contact with the inner surface of one side of the link pipe 200.

Therefore, the fixing bracket 300 is inserted into the link pipe 200 on one side, but is not separated from the other side.

In this state, the fixing bracket 300 is interpolated in a state where it does not protrude to the outside of one side and the other side of the link pipe 200 when viewed from the front end opening of the link pipe 200, and the inside of the link pipe 200 The furnace is positioned in a shape where the fixing bracket 300 passes through and blocks the link pipe 200.

The link insertion hole 230 corresponds to the thickness and width of the fixing bracket 300, and the link fastening hole 240 is formed to correspond to the thickness and width of the fixing protrusion 310, but the fixing bracket 300 smoothly The fixing bracket 300 and the fixing protrusion 310 may be formed to be smaller than the link insertion hole 230 and the link fastening hole 240 in a minute range so that they can be fitted.

In this case, the fixing bracket 300 is smoothly inserted into the link pipe 200, but may shake somewhat. As a means for this, a clamping bracket 400 is mounted.

As described above, the clamping bracket 400 is inserted in a direction orthogonal to the insertion direction of the fixing bracket 300 . That is, it is inserted in a horizontal form from the front end opening of the link pipe 200 and stacked and adhered to the upper surface of the fixing bracket 300 to fix the fixing bracket 300 without shaking.

In the center of the clamping bracket 400, a fastening hole 410 is formed through a hole, and the fastening hole 410 is provided in the same or similar shape as the fixed fastening hole 320 to match the fixed fastening hole 320. Therefore, when the fixing bracket 300 and the tightening bracket 400 are mounted, the fixing fastening hole 320 and the fastening hole 410 match in the same shape and can be formed as one through hole, as described above. Assuming that the hexagonal pop nut 510 is used, it may have a regular hexagonal shape.

Since the fixing bracket 300 is interpolated to a predetermined depth inside the longitudinal direction from the front end of the link pipe 200, the fixing bracket 400 stacked on the upper surface of the fixing bracket 300 is more of the link pipe 200 than the fixing bracket 300. It is located closer to the front end, and the upper surface of the clamping bracket 400 may be located in line with the front end opening of the link pipe 200 or located inside the front end to a fine depth.

Therefore, after the fixing bracket 300 and the tightening bracket 400 are mounted on the link pipe 200, each bracket 300,400 does not protrude through the side and tip openings of the link pipe 200, while the link pipe 200 Since the pipe connection structure 10 of the present invention is installed so as to match the outer surface as much as possible, the user does not get caught in the protruding part of the Buddha statue while moving, and the clothes are not torn or injured.

When the fixing bracket 300 and the fastening bracket 400 are mounted on the link pipe 200, the pop nut 510 is inserted from the front end opening of the link pipe 200 to fix the plurality of brackets 300 and 400, and the pop nut ( 510) has a nut configuration to which the wrench bolt 610 can be coupled when coupled with the base pipe 100.

The pop nut 510 is inserted while penetrating the fixed fastening hole 320 and the fastening hole 410, the head 511 of the pop nut 510 is caught on the upper surface of the fastening hole 410, ) and the nut portion 513 are disposed while passing through the fixed fastening hole 320 and the fastening fastening hole 410.

After the pop nut 510 is installed, when a pop nut gun (not shown) is inserted into the pop nut 510 and the wrinkled part 512 is deformed by pulling, the wrinkled part 512 is crushed and the fixing bracket 300 is pressed. Therefore, while the fixing bracket 300 and the clamping bracket 400 are strongly attached between the head 511 of the pop nut 510 and the wrinkled portion 512, each bracket 300, 400 is in a very strong coupling state. As a result, each of the brackets 300 and 400 and the pop nut 510, which is a fixing member 500, are maintained in close contact with the link pipe 200 without being separated.

The pop nut 510 is also known as a rivnut, a rivet nut, etc., and the pop nut gun is also known as a hand rivet gun. Since the fastening method by using is a known technique, detailed descriptions of the structure and shape of the pop nut 510, the deformation of the pop nut 510, and the method of fixing the brackets 300 and 400 through this will be omitted.

When the fixing bracket 300 and the fastening bracket 400 are mounted on the link pipe 200 and the pop nut 510 is inserted and fixed, the link pipe 200 for use in the pipe connection structure 10 of the present invention preparation is complete.

Now, to couple the link pipe 200 to the base pipe 100, the protrusion 210 of the link pipe 200 is inserted into the support groove 110 of the base pipe 100 to span, and the link pipe 200 The fitting protrusion 220 of ) is mounted so as to fit into the support hole 120 of the base pipe 100.

When the link pipe 200 is mounted and coupled to the base pipe 100 in this way, the fixed fastening hole 320 and the fastening hole 410 formed in the fixing bracket 300 and the fastening bracket 400 of the link pipe 200 form the base. Matching and positioning side by side with the base fastening hole 130 on one side of the pipe 100, they form a state of communication like one through hole, and are fixedly fastened while facing the base insertion hole 140 on the other side of the base pipe 100. The ball 320, the fastening hole 410, the base fastening hole 130, and the base insertion hole 140 form a straight line arrangement that matches the longitudinal direction of the link pipe 200.

Now, prepare a wrench bolt 610 having a spiral diameter that meets the specification of the nut part 513 of the pop nut 510 and can be accommodated in the diameter of the base fastening hole 130 at the same time, and After being inserted into the base insertion hole 140 from the outside and then inserted into the base fastening hole 130 and rotated, the wrench bolt 610 is mounted on the pop nut 510.

At this time, the diameter of the base insertion hole 140 is larger than the head 6100 of the wrench bolt 610, and the base fastening hole 130 has a smaller diameter than the base insertion hole 140 and the head 611 of the wrench bolt 610. Since it is formed, the wrench bolt 610 can be easily inserted into the base insertion hole 140 and inserted in line with the base fastening hole 130, the screw part (( 612 is inserted into the base fastening hole 130 and spirally coupled to the pop nut 510, and the head 611 of the wrench bolt 610 is attached to the inner surface of one side of the base pipe 100 around the base fastening hole 130. touch and press.

Therefore, when the wrench bolt 610 is inserted into the pop nut 510 and tightened, the wrench bolt 610 couples the base pipe 100 and the pop nut 510 at both ends and fixes them while tightening. Since is coupled to the fixing bracket 300 and the tightening bracket 400 and tightened, and the fixing bracket 300 and the tightening bracket 400 are coupled to the link pipe 200, the wrench bolt 610 is the pop nut When coupled to 510, a state in which the base pipe 100 and the link pipe 200 are strongly fastened is achieved.

On the other hand, since the base pipe 100 can serve as a pillar, as an additional embodiment of the present invention, a leg screw 730 may be mounted at the lower opening in contact with the ground of the base pipe 100 for stable support, and the leg screw ( 730), at least one leg bracket 700 may be mounted in a direction upward by a predetermined length from the lower end of the base pipe 100.

The leg bracket 700 has a similar shape to the fixing bracket 300, but a hexagonal or circular hollow may be formed in the center of the leg bracket 700.

As another embodiment of the present invention, in the fixing bracket 300 and the clamping bracket 400, the fixing fastening hole 320 and the clamping hole 410 may be formed in a circular shape. In this case, the fixing bracket 300 and the leg bracket 700 may be of the same shape.

Like the fixing bracket 300, the leg bracket 700 is provided with a leg protrusion 710 protruding in a rectangular shape of a predetermined size on one side edge, and a hexagonal or circular leg hollow 720 is formed at the center of the leg bracket 700. This through hole is formed.

The leg hollow 720 serves to combine the leg bracket 700 and the leg screw 730 by inserting the screw portion of the leg screw 730, and the leg screw 730 passes through the lower opening of the base pipe 100. It is inserted in the vertical direction and is provided to function as a leg support and to adjust the height.

It is preferable that a plurality of leg brackets 700 are installed at regular intervals at a predetermined depth in the longitudinal direction at the lower end of the base pipe 100 to adjust the height of the leg screws 730 and to firmly combine them.

In addition, the leg insertion hole 160 and the leg fastening hole 150 have the same shape and structure as the link insertion hole 230 and the link fastening hole 240 so that the leg bracket 700 can be mounted at the lower end of the base pipe 100. ) may be formed as a pair while facing each other, and a combination of the leg insertion hole 160 and the leg fastening hole 150 may be formed in multiple stages at multiple locations along the length direction of the lower end of the base pipe 100.

When the leg bracket 700 is inserted into the leg insertion hole 160 from one side of the base pipe 100 and the leg protrusion 710 is inserted into the leg fastening hole 150 on the other side, the leg bracket 700 is connected to the base pipe 100. ) Mounting is completed at the lower end, and when a plurality of leg brackets 700 are mounted, each leg hollow 720 forms a structure in which they face each other and communicate with each other.

Now, the foot screw 730 is installed from the opening at the tip of the lower end of the base pipe 100, and the screw part of the leg screw 730 penetrates each leg hollow 720 and is rotated so that it is spirally coupled, and the head of the leg screw 730 When arranged to touch the ground, installation of the legs of the base pipe 100 is completed.

That is, as shown in FIGS. 11 and 12, the installation of the leg brackets 700 is installed in multiple stages at the front end of the lower end of the base pipe 100 and the upper predetermined length, and a plurality of leg brackets 700 are screwed into one leg screw ( 730), it can perform a function as a pillar support by forming a solid coupling.

At this time, as another embodiment for the function as a pillar support, as shown in FIG. 13, a fixing bracket 300 and a fastening bracket 400 are installed at the upper end of the base pipe 100 at the front end of the lower end of the base pipe 100 It is mounted while forming a single laminated body in the same way as the base pipe 100, and the pop nut 510 is inserted as a fixing member 500 from the opening at the lower end of the base pipe 100 to form a fixing bracket 300 and a fastening bracket 400 at the lower end. It is possible to form the pillar of the frame connection structure 10 by simultaneously fastening the combination and the upper leg bracket 700 therebetween.

Meanwhile, the leg bracket 700 is mounted not only on the lower end of the base pipe 100, that is, the part in contact with the ground, but also on the upper end of the base pipe 100, that is, the part where the plurality of link pipes 200 are coupled. .

For example, as described above, the link pipe 200 is coupled to the upper end of the base pipe 100 in the lateral direction. A low pipe connection structure 10 can be used. In this case, the link pipe 200 can be arranged to form a shelf while being closely disposed on the floor.

Alternatively, when the leg bracket 700 is installed as it is facing upward, a separate structure, decoration, cover, etc. that can be coupled to the leg hollow 720 is connected to combine the base pipe 100 and the link pipe 200 The external appearance can be beautifully decorated, or it can be used as a function that adheres to the ceiling by adjusting the length by connecting the leg screw 730, and a separate connection member is installed in the leg hollow 720 to make the base pipe 100 An additional pipe extending from the upper end may be configured in conjunction with each other.

In this way, in order to connect the upper end of the base pipe 100 of the leg bracket 700, the base pipe 100 has a leg insertion hole 160 formed between the support groove 110 and the support hole 120, and on the other surface facing A leg fastening hole 150 opposite to the leg insertion hole 160 may be formed, so that the leg bracket 700 may be horizontally interpolated to block the upper opening of the base pipe 100 .

In this case, since the link pipe 200 is shaped to cover one side of the leg bracket 700, the leg bracket 700 cannot be coupled in a state in which the link pipe 200 is first coupled, and therefore the leg bracket 700 first After being inserted into the upper opening of the base pipe 100, the link pipe 200 to which the installation of the fixing bracket 300 and the tightening bracket 400 is completed must be coupled in the lateral direction.

An example of using the pipe connection structure 10 as a preferred embodiment of the present invention according to the above structure is as follows.

First, the fixing bracket 300 is coupled to the link pipe 200.

If the fixing protrusion 310 is aligned with the link insertion hole 230 and then pushed continuously, the fixing bracket 300 is inserted horizontally from the other side of the link pipe 200 to the inside, and the fixing protrusion 310 reaches one side to fasten the link. It is inserted into the ball 240 and the step portion of both side ends of the fixing protrusion 310 contacts the inner surface of one side of the link pipe 200 to complete the insertion and mounting.

In this state, the fixing bracket 300 has a safe configuration with no appendages protruding outward of the link pipe 200 while the rim including the fixing protrusion 310 coincides with the outer surface of the link pipe 200.

Next, the fastening bracket 400 is inserted from the front end opening of the link pipe 200 toward the upper surface of the fixing bracket 300 and mounted so as to be in close contact with each other in a stacked structure.

In this case, the fixed fastening hole 320 and the tightening fastening hole 410 are communicated in a matched state to form a hollow, and the pop nut 510, which is the fixing member 500, is inserted into the hollow, and the pop nut gun As the wrinkled portion 512 is deformed by using , the fixing bracket 300 and the fastening bracket 400 are strongly compressed and sandwiched between the head 511 and the wrinkled portion 512 of the pop nut 510 .

Now, the preparation of the link pipe 200 is completed, and the process of coupling the link pipe 200 to the base pipe 100 proceeds.

While aligning the protrusion 210 of the link pipe 200 with the support groove 110 of the base pipe 100 and the fitting protrusion 220 with the support hole 120, the link pipe 200 is connected to the base pipe 100. fit into the

The above-described coupling process is based on the second embodiment of the present invention, and if the first embodiment of the present invention is applied, the base pipe 100 has support grooves on one side formed with long holes at a predetermined interval ( 110) and the support hole 120 on the other side are provided as a pair, and the link pipe 200 forms a structure orthogonally coupled to a predetermined position on one surface of the base pipe 100.

There is no difference between the first embodiment and the second embodiment except for whether they are coupled to the tip of the base pipe 100 or coupled to a predetermined position on one side of the base pipe 100. Hereinafter, the second embodiment will be explained on the premise that

As a result of the above-described coupling, the link pipe 200 and the base pipe 100 are now orthogonally coupled, and the fixed fastening hole 320, the fastening hole 410, and the base fastening hole 130 are arranged side by side and face each other. A through hole forms a connected structure.

Next, the link pipe 200 and the base pipe 100 are fastened using the wrench bolt 610, which is a fastening member 600.

After inserting the wrench bolt 610 into the base pipe 100 through the base insertion hole 140, the threaded portion 612 passes through the base fastening hole 130 and attaches to the nut portion 513 of the pop nut 510. Align to be inserted and rotate the wrench bolt 610 to screw the wrench bolt 610 and the pop nut 510 together and tighten them strongly.

In this state, the wrench bolt 610 strongly fastens the base pipe 100 and the pop nut 510, and since the pop nut 510 is strongly fastened to the link pipe 200, eventually the wrench bolt 610 The base pipe 100 and the link pipe 200 are strongly fastened.

In addition, the fastening has a strong binding force by the coupling structure of the fixing bracket 300 and the tightening bracket 400, the coupling structure of the locking protrusion 210 and the fitting protrusion 220, the support groove 110, and the support hole 120. have

As a result, the pipe connection structure 10 of the present invention can be orthogonally coupled to form various structures, and it can be safely used while being beautiful in appearance because there are no appendages protruding outward of the pipe.

In the conventional pipe structure, most of the structures are in which a screw is directly inserted from the outside of the pipe to couple the overlapping two pipes, or a coupler is mounted on the pipe and pipe connection part and then screwed in to fix it. In this case, it is common for couplers, bolt heads, and nuts to protrude outside the pipe, so it does not look good and there is a risk of safety accidents. It was difficult to do, and the appearance was inferior.

On the other hand, the pipe connection structure 10 of the present invention is not only able to achieve strong binding due to structural features inserted and matched between the pipes 100 and 200 and the brackets 300 and 400, but also has a beautiful appearance and is particularly strongly bound without welding. The method is simple and convenient, so anyone can easily and quickly install it.

The embodiments of the present invention described above are merely exemplary, and those skilled in the art will appreciate that various modifications and equivalent other embodiments are possible therefrom.

Therefore, it will be well understood that the present invention is not limited to the forms mentioned in the detailed description above. Therefore, the true technical protection scope of the present invention should be determined by the technical spirit of the appended claims. It is also to be understood that the present invention includes all modifications, equivalents and alternatives within the spirit and scope of the present invention as defined by the appended claims.

10: pipe connection structure
100: base pipe
110: support groove
120: support hole
130: base fastening hole
140: base insertion hole
150: leg fastening hole
160: leg insertion hole
200: link pipe
210: stumbling block
220: fitting protrusion
230: link insertion hole
240: link fastening hole
300: fixed bracket
310: fixed protrusion
320: fixed fastening hole
400: clamping bracket
410: fastening hole
500: fixing member
510: pop nut
511: head
512: wrinkles
513: nut part
600: fastening member
610: wrench bolt
611: head
612: screw part
700: leg bracket
710: leg projection
720: leg hollow
730: leg screw
800: shelf plate
810: lathe

Claims (5)

In a structure in which a plurality of square pipes with open ends are connected,
base pipe;
A link pipe orthogonally coupled to the base pipe;
A fixing bracket interpolated horizontally from the outer surface of the link pipe to a predetermined depth inside the front end; and
A fastening bracket inserted to a predetermined depth from the front end opening of the link pipe and in close contact with the upper surface of the fixing bracket; including,
base pipe,
A support groove formed with a long hole at a predetermined position on one surface;
A support hole formed in a long hole at a position spaced apart from the support groove on one side by a predetermined distance inward in the longitudinal direction;
A base fastening hole formed through a hole between the support groove and the support hole on one side; and
Including; a base insertion hole formed through a through hole on the other surface to face one surface;
link pipe,
A locking protrusion protruding from the upper edge of the front end so as to fit into the support groove;
A fitting protrusion protruding from the lower edge of the front end to be inserted into the support hole and fitted;
A link insertion hole formed with a long hole on the other side between the upper and lower rims to insert the fixing bracket; and
Further comprising a; link fastening hole opposite to the link insertion hole and having a long hole formed on one side thereof,
fixed bracket,
A fixing protrusion protruding from one side of the rim so as to be fitted into the link fastening hole; and
It further includes; a fixed fastening hole formed in a predetermined shape in the center,
The clamping bracket is
Including; fastening fastening hole formed in a predetermined shape in the center,
The fixing member is inserted into the fixing hole and the tightening hole and bound to the fixing bracket and the tightening bracket,
The base insertion hole, the base fastening hole, the fastening fastening hole, and the fixed fastening hole are arranged in a row to face each other, and when the fastening member passes through each through hole and is fastened to the fixing member, the link pipe is fixed to the base pipe, characterized in that the pipe connection structure. According to claim 1,
The link insertion hole is formed in accordance with the shape of the insertion surface of the fixing bracket,
The link fastening hole is formed in accordance with the shape of the fixing protrusion, but the upper and lower widths are the same compared to the link insertion hole, and the left and right widths are formed shorter.
The fixing bracket is inserted into the link pipe on one side, but the step difference on both sides of the fixing protrusion is caught on the inner surface of the link pipe at both ends of the link fastening hole, characterized in that it does not escape to the other side. According to claim 1,
The clamping bracket is
It is configured to match the inner end surface of the link pipe and is inserted into the link pipe so as to be stacked on the fixing bracket, characterized in that the fixing bracket is fixed without shaking. According to claim 1,
As the fastening member, a bolt composed of a head and a screw is used.
The base insertion hole is composed of a larger diameter than the base fastening hole and the fastening member head,
The base fastening hole is characterized in that composed of a small diameter compared to the head of the fastening member, pipe connection structure. According to claim 1,
The fixed fastening hole and the fastening fastening hole are each formed as a hexagonal through hole,
Hexagonal pop nuts are used as fixing members,
The fastening member is a pipe connection structure, characterized in that a wrench bolt spirally inserted into the pop nut is used.