KR200411288Y1 - apparatus for mounting a pipe - Google Patents

Abstract

The present invention discloses a pipe assembly structure.

The present invention comprises: first and second outer pipes arranged in parallel with each other and having hollow portions; It is inserted into the hollow part of the first outer pipe, and the hollow part is formed therein, while the outer circumferential surface is in close contact with the distal end of the first outer pipe, thereby forming a flange which performs a kind of stopper function. A first inner pipe threaded opposite the first inner pipe; It is inserted into the hollow part of the second outer pipe and has a structure in which one end is sealed and the other end is opened. A screw groove is formed in the open end in a predetermined depth, and a flange in which the leading end of the second outer pipe comes into contact is protruded. A second inner pipe formed; A reinforcement pipe having one end inserted into the hollow part of the first inner pipe and the other end inserted into the second inner pipe at a predetermined interval, wherein the reinforcing screw and the inner pipes and the coupling part are assembled. The pipe can be assembled quickly through the pipe, and in particular, it is possible to prevent breakage of the assembly site. Therefore, when used for a product employing such as a paint roller can be used to quickly change the length, it is possible to further improve the reliability and marketability by preventing damage to the assembly site during the use process.

Inner pipe, outer pipe, reinforcement pipe, riveting, flange, support jaw

Description

Apparatus for mounting a pipe}

1 is a cross-sectional view showing a conventional pipe assembly structure.

Figure 2 is an exploded cross-sectional view showing a pipe assembly structure according to the present invention.

3 is a cross sectional view of FIG. 2.

<Explanation of symbols for main parts of drawing>

100,200: first and second outer pipe 110,120: hollow part

300,400: first and second inner pipe 310: hollow part

320: thread 330: flange

410: screw groove 420: flange

430 support jaw 500 reinforcement pipe

R: Rivet

The present invention relates to a pipe assembly structure, and more particularly to a pipe assembly structure that can be varied in length by being assembled together.

As shown in FIG. 1, in the case of a pipe for a paint roller, a plurality of pipes 10 are provided in order to paint a portion where the roller 1 does not touch, that is, to vary the length of the pipe 10. And they are assembled and used together.

In order to assemble such a pipe 10, a screw groove 11 is formed in the pipe 10 on one side to a predetermined depth, and a screw rod 12 is formed on the pipe 10 on the other side, thereby screwing them together. It has been varied in length, that is, by screwing the plurality of pipes 10.

 However, such a pipe assembly structure causes a problem that the screwing time of the screw rod 12 and the screw groove 11 takes a very long time.

This is because when the length of the screw rod (I12) and the screw groove 11 is shortened, there is a fear that the coupling portions between each other are very fragile and easily broken.

Therefore, in order to compensate for this, the length of the screw rod 12 and the screw groove 11 should be sufficiently long, but this causes inconvenience in that the fastening time is long.

The present invention was created to solve such a conventional problem, and provides a pipe assembly structure that can be fastened and detached in a very short time, and in particular, maintains sufficient rigidity to prevent breakage at each assembly site. Has its purpose.

Pipe assembly structure according to the present invention to achieve the above object, the first and second outer pipe of the metal material is arranged in parallel with each other and a hollow formed therein; It is inserted into the hollow part of the first outer pipe, and the hollow part is formed therein, while the outer circumferential surface is in close contact with the tip of the first outer pipe, thereby forming a flange which performs a kind of stopper function. A first inner pipe having a thread formed on an opposite side of the first inner pipe as an outer circumferential surface thereof; The flange is inserted into the hollow part of the second outer pipe, the end is closed and the other end is open, and the open end is formed with a screw groove with a predetermined depth, and a flange contacting the tip of the second outer pipe. A protruding second inner pipe; One end is inserted into the hollow portion of the first inner pipe and the other end is inserted into the second inner pipe while maintaining a predetermined interval; reinforcement pipe; characterized in that it comprises a.

One preferred feature of the present invention is that the first and second inner pipes are formed of synthetic resin and the reinforcement pipes are formed of metal.

Another desirable feature of the present invention is that an annular support jaw protruding from the hollow portion of the second inner pipe may be inserted into and supported by an end portion of the reinforcing pipe.

Another preferred feature of the present invention is that the first outer pipe, the first inner pipe and the reinforcing pipe are riveted and fixed, and the second outer pipe and the second inner pipe are fixed to each other through riveting.

Such a characteristic configuration and the resulting effects of the present invention will become more apparent from the detailed description of the invention with reference to the accompanying drawings to be described later.

2 is an exploded cross-sectional view showing a pipe assembly structure according to the present invention, Figure 3 is a combined cross-sectional view.

As shown therein, the pipe assembly structure according to the present invention is largely divided into first and second outer pipes 100 and 200, first and second inner pipes 300 and 400, and reinforcement pipe 500.

The first outer pipe 100 and the second outer pipe 200 are formed of a metal, for example, Al alloy, and are arranged side by side, and hollow parts 110 and 210 are formed therein, respectively.

The first inner pipe 300 is forcibly inserted into the hollow part 110 of the first outer pipe 100, and the hollow part 310 is formed therein, while the first outer pipe is approximately formed at the outer circumferential surface of the intermediate point. By being in close contact with the distal end of the 100, a flange 330 which performs a kind of stopper function is formed to protrude, and a thread 320 is formed on the opposite side of the first inner pipe 300 as an outer circumferential surface of the flange 330.

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In this case, the first inner pipe 300 may be molded in a synthetic resin for weight reduction.

The second inner pipe 400 described above is inserted into the hollow portion 210 of the second outer pipe 200, and has a structure in which one end is sealed and the other end is open, and particularly, the predetermined opening is provided at the open end. A screw groove 410 is formed to a depth, and a flange 420 protruding from the corresponding outer surface of the second outer pipe 200 is contacted, that is, a stopper function.

The second inner pipe 400 may also be molded of the same material as that of the first inner pipe 300, that is, synthetic resin.

The reinforcement pipe 500 is interposed to reinforce the rigidity of the coupling portion when the first and second outer pipes 100 and 200 are coupled through the first and second inner pipes 300 and 400, and one end thereof is connected to the first inner pipe ( It is coupled to the hollow portion 310 of the 300, the other end is inserted into the second inner pipe 400 while maintaining a predetermined interval.

In addition, a predetermined interval is also formed between the second inner pipe 400 of the reinforcement pipe 500, which is to prevent the case that it becomes difficult to assemble the pipe by mixing, that is, the various foreign substances in the workplace therebetween. It is for.

In this case, the reinforcement pipe 500 is preferably formed of a metal, that is, an Al alloy. Particularly, the bonding with the first inner pipe 300 may be preferably integrally formed through an inserting method, for convenience of manufacture.

On the other hand, the insertion of the reinforcement pipe 500 described above to be maintained at a predetermined interval on the second inner pipe 400 is intended to facilitate engagement.

However, the gap may cause a drop in bonding stiffness, which is to prevent this in advance.

An inner end of the reinforcing pipe 500 is integrally protruded from the annular support jaw 430, which can be inserted and supported by an end of the reinforcing pipe 500.

On the other hand, although the upper end portion of the first inner pipe 300 has a structure surrounding the reinforcement pipe 500 in the drawing, this is only for appearance reasons, the upper end of the first inner pipe 300, the entire reinforcement pipe 500 There is no special reason to wrap it.

As described above, the first outer pipe 100, the first inner pipe 300, and the reinforcement pipe 500 form an assembly, and the second outer pipe 200 and the second inner pipe ( 400 is another assembly.

Therefore, each assembly needs to maintain a strong fixed engagement.

To this end, through holes are formed on each of the parts to be joined, and the riveting (R) is coupled to each other through the through holes, each of which can be maintained in a strong fixed state while forming an assembly.

In the pipe assembly structure according to the present invention configured as described above, the first outer pipe 100, the first inner pipe 300 and the reinforcement pipe 500 form one assembly, that is, the assembly through riveting, and the second The outer pipe 200 and the second outer pipe 400 also form one assembly.

Therefore, in combining them, when the mutually positioned and close contact with each other, the end of the reinforcement pipe 500 is first inserted into the second inner pipe 400 quickly, that is, the predetermined interval is maintained It is inserted quickly without interference, and at some point, it is inserted while being adjacent to the supporting jaw 430 protruding from the inside of the second outer pipe 400.

In this case, the reinforcement pipe 500 is not directly inserted by force, and at this point, the thread 320 formed on the outer circumferential surface of the first inner pipe 300 is screwed to the screw groove 410 of the second inner pipe 400. It is time to become.

Therefore, when screwing them together, not only the first and second internal pipes 300 and 400 are screwed together, but also the reinforcement pipe 500 is inserted into the inner circumferential surface of the support jaw 430, and as a result, the fastening is completed quickly and quickly. Will be.

In addition, if a large number of such assemblies are provided and sequentially assembled by the above-described method, not only a long length can be formed, but also a strong fastening rigidity can prevent breakage of the coupling site.

The present invention has been described as a specific embodiment, but the present invention is not limited to the above-described embodiment, without having to leave the gist of the present invention claimed in the claims without having the ordinary knowledge in the field Anyone who grows up will be able to make various variations.

For example, the foregoing has been described by way of example for use for a paint roller, but the present invention is not limited thereto. It will be appreciated by those skilled in the art that the present invention can be applied to all pipes capable of variable length.

As described above, according to the pipe assembly structure according to the present invention, the assembly of the fast pipe through the reinforcing pipe to connect the inner pipes and the connection between them and at the same time to reinforce the coupling portion is made, in particular the assembly site Can be prevented in advance.

Therefore, when used for a product employing such as a paint roller can be used to quickly change the length, it is possible to further improve the reliability and marketability by preventing damage to the assembly site during the use process.

Claims (5)

First and second outer pipes of metal material arranged side by side and having hollow portions formed therein; It is inserted into the hollow part of the first outer pipe, and the hollow part is formed therein, while the outer circumferential surface is in close contact with the distal end of the first outer pipe, thereby forming a flange which performs a kind of stopper function. A first inner pipe threaded opposite the first inner pipe; The flange is inserted into the hollow part of the second outer pipe, the end is closed and the other end is open, and the open end is formed with a screw groove with a predetermined depth, and a flange contacting the tip of the second outer pipe. A protruding second inner pipe; And a reinforcement pipe having one end inserted into the hollow part of the first inner pipe and the other end inserted into the second inner pipe while maintaining a predetermined interval. The method of claim 1, And the first and second internal pipes are formed of synthetic resin, and the reinforcement pipe is formed of metal. The method of claim 1, And an annular support jaw protruding from the hollow part of the second inner pipe, the end of the reinforcing pipe being inserted into and supported. The method of claim 1, The first outer pipe and the first inner pipe and the reinforcement pipe are riveted and fixed, And the second outer pipe and the second inner pipe are fixed to each other through riveting. The method of claim 1, The reinforcing pipe, the pipe assembly structure, characterized in that integrally molded through the first inner pipe and the insert.

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