KR200187816Y1 - Connecting apparatus for pipes - Google Patents

Abstract

The present invention relates to a pipe connector for connecting the pipe more firmly and easily by the wedge method; A short pipe 10 which is inserted into the pipe, is split in the longitudinal direction, and has an expansion port 11 formed at its inner circumference with a tapered threaded portion in a direction of decreasing the inner diameter of the end portion; A threaded portion is formed on the outer circumference to be screwed into the inner circumferential threaded portion of the expansion spout through the inside of the short pipe, and includes a fastener 21 extending the expansion spout during the screwing process; Display racks, work benches, etc., each of the pipes constituting them can be maintained in a tightly coupled state, so even in the case of long-term mounting of the heavy weight, there is no problem of bending or loosening, and assembling and dismantling work becomes easy. .

Description

Connecting apparatus for pipes}

The present invention relates to a pipe connector, and more particularly, to a pipe connection structure for connecting the pipe and the pipe more firmly and easily.

Hollow pipes are commonly used to form frames such as display racks, tool posts, work benches or shelves. Pipes of different lengths can be assembled by means of connectors to form multiple layers. Panels and the like are coupled to each floor to organize and store various items.

In recent years, the shelf or the like is provided with metal or plastic pipes made of thin and light materials to facilitate movement or assembly, and thus, many developments have been made in convenience, practicality and aesthetics.

The beautiful multi-layer shelf, which is also used at home, is difficult to use for a long time because its structure is weak. This was more often due to the fragility of the connecting structure connecting the pipes than the rigidity of the pipes. In the conventional connection method, a simple close fitting method using a small tolerance was used, and a method of fastening a small screw through the outside was also used. According to the conventional pipe connection method, the connection part becomes loose due to not being used for a long time, or when the heavy part is placed for a long time, the bending part or loosening of the connection part occurs.

The object of the present invention to the above problem is to provide a pipe connector that firmly and facilitates the connection of the hollow pipe. In addition, to facilitate the disassembly of the pipe assembly to provide a connector for free movement and mounting.

On the other hand, it is preferable that the connector does not damage the beauty of the display stand or the like.

The connector may be provided in various shapes according to the structure of the display rack or the like. That is, the connector is various, such as the form for connecting only two pipes in a straight line, the form for connecting three pipes at the same time, and the support for being fitted to the bottom portion in contact with the floor. The present invention is preferably provided to be applicable to all of the above-described connection method of various shapes.

1 is a perspective perspective view showing a pipe connector according to the present invention.

2 is a cross-sectional view of the fitting method according to the first embodiment of the present invention.

3 is a cross-sectional view of the fitting method according to the second embodiment of the present invention.

4 is a perspective view according to another embodiment of the present invention.

Explanation of symbols on the main parts of the drawings

1,2,3,200; Pipe 10,100; Short pipe

11,23,25,120; Extensions 21,22,24,110; Fastener

The above object is to be fitted into a pipe, and is split in the longitudinal direction, the inner periphery of the end pipe having an expansion port formed with a tapered screw portion in the direction of decreasing the inner diameter of the end; The thread is formed on the outer circumference to be screwed into the inner circumferential threaded portion of the expansion spout through the inside of the short pipe, and is achieved by a pipe connector comprising a fastener that expands the expansion spout in the screwing process.

Hereinafter, with reference to the accompanying drawings in the specification will be described in more detail.

1 is a perspective perspective view showing a pipe connector according to the present invention. Pipe connector according to the subject matter of the present invention can be provided in various forms, Figure 1 illustrates a T-shaped connector among them.

T-shaped end pipe 10 as shown has four connecting portions (11 ', 12, 13, 14) to connect the four pipes, it is a shape that can be installed in the corner of the middle layer, such as a display stand. In this way, a multi-layer structure such as a display stand can be achieved. Also, although not shown, the fourth pipe may be further coupled to the fourth connector 14 of the connector.

The connecting tool is composed of expansion tools 11, 23, 25, fasteners 21, 22, 24, and T-type short pipes (hereinafter referred to as short pipes). Here, the expansion port and the tightening port may be provided integrally with the short pipe, or may be provided in a separated state. This may be selected according to the convenience of the producer, or may be inevitably selected depending on the bonding situation. That is, there may be two or more ways of connecting the pipe with the connector, and what is shown is their merged state.

A first embodiment of the connection method is as follows.

The first fitting portion 11 ′ provided integrally with the short pipe 10 serves as an extension 11 as a shape that is itself split in the longitudinal direction, and a tapered screw portion is formed on an inner circumference thereof. The first expansion opening 11, which is in contact with the inner circumference of the first pipe 1, is formed with several protruding surfaces such as splines on the outer circumference thereof, thereby engaging with the pipe without slipping. The tapered screw portion 11a formed on the inner circumferential surface of the first expansion port is formed in a direction in which the inner diameter of the end portion decreases as shown in FIG. 2.

The first fastener 21 is shaped like a cork stopper and is inserted in the direction shown to be screwed with the threaded portion of the first expansion tool. The first clamping groove is formed with a groove 21a (see FIG. 2) having a predetermined shape on the bottom thereof so as to be rotatable by a fastening tool such as a driver. The groove may be a straight groove for a flat driver, and may be a cross groove for a Phillips driver. Bolt heads for the socket driver may be formed.

2 is a cross-sectional view for clearly explaining the fitting method by the above configuration.

The first fastener 21 is drawn in from the opposite side of the first expansion tool 11 of the short pipe, rotated by a driver, and screwed with the threaded portion 11a inside the first expansion tool 11. The first expansion opening 11 is expanded toward the inner surface of the pipe in the process of the coupling of the fastener 21 to act as a wedge, whereby the short pipe 10 is firmly connected to the pipe 1. To be combined.

A second embodiment of the connection method is as follows.

The second fastener 22 has a rod-shaped or cylindrical shape with an upper portion thereof, and has a thread portion formed on the outer circumference thereof, and a lower portion thereof is tapered in a direction in which the diameter decreases downward, and a thread portion is formed on the outer circumference thereof. The second clamping jaw is formed with a jaw 22a in the middle portion. The jaw 22a prevents the fastener 22 from being completely drawn into the second connecting portion 2.

The second expansion tool 23 is provided between the second clamp 22 and the second pipe (2). As shown in the drawing, the second expansion tool 23 has a shape in which one point is completely split in the vertical direction and has a threaded portion 23a tapered in a direction in which the inner diameter of the end portion decreases. The second fastener 22 is screwed on the second connecting portion 12 of the short pipe.

3 is a cross-sectional view for clearly explaining the fitting method according to the second embodiment. The second fitting port 22 is screwed into one end of the second expansion tool 12 of the short pipe, and the other end is screwed into the second expansion tool 23. Here, the second expansion tool 23 is expanded to compress the inner circumferential surface thereof while being fitted to the inner circumference of the second pipe 2. As a result, the short pipe 10 and the second pipe 2 are firmly coupled to each other.

On the other hand, the fastener 22 may have a through hole (not shown) in the longitudinal direction in the center. According to this, the first tank can be completely inserted into the short pipe, and then the second tank can be coupled to the short pipe by using an adhesive or the like. Thereby, the first pipe can be coupled using a driver through the through hole of the second fastener.

Hereinafter, since the connection method of the third and fourth pipes will be possible by the connection method according to the second embodiment described, additional description will be omitted. As described above, the two combination methods may be combined with each other according to the manufacturer's choice, or only the second method may be used.

4 is a perspective view according to another embodiment of the present invention.

The connection part of the short pipe 100 is provided with the tapered fastener 110 is integrally provided, the expansion hole 120 and the pipe 200 is fitted to the outside.

Coupling method by the configuration as shown is similar to that described through the above embodiment, so a detailed description thereof will be omitted.

The display stand, work bench, etc. by the pipe connector of the present invention can maintain the state in which each pipe constituting them is firmly coupled, so that even when the heavy material is mounted for a long time, there is no problem due to bending or looseness.

In addition, the display stand to which the present invention is adopted can be freely fitted to combine the pipes constituting it is easy to assemble and dismantle operation.

Claims (2)

A pipe connector for allowing an end portion of each pipe extending from different directions to be joined and fixed in one place, thereby forming a structure such as a shelf or a display rack, wherein the pipe connector is an inclined region; It is split in the longitudinal direction, the inner periphery having a short pipe (10) having an expansion port (11) is formed in the tapered screw portion in the direction of decreasing the inner diameter of the end; The threaded portion is formed on the outer circumference to be screwed into the inner circumferential threaded portion of the expansion hole 11 through the inside of the short pipe 10, and includes a fastener 21 extending the expansion hole in the screwing process. Characterized by a pipe connector. The method of claim 1, wherein the other portion of the pipe connection portion; A short pipe 10 having a pipe-shaped connecting portion 12 having a threaded portion formed therein; A screwing part 22 formed at an outer circumference of one end thereof so as to be screwed with the connection part 12, and a taper formed at the other end thereof, and a screwing part 22 having a threaded part formed at an outer circumferential surface thereof; It is split in the longitudinal direction and screwed with the screw portion of the fastener 22, characterized in that it comprises an expansion port 23 is formed on the inner circumferential surface to be coupled to the screw portion of the fastener 22 on the inner peripheral surface Pipe connector.