KR100950219B1 - Pipe assembly - Google Patents

Abstract

The present invention is provided with a branch pipe for connecting parts and the outer periphery of one end of the multi-pipe with a threaded portion, the first connection portion in surface contact in the form of contact with the multi-pipe, the first connection and the communication It relates to a pipe assembly comprising a connecting pipe consisting of a second connecting portion formed in a size smaller than the outer circumferential diameter of the first connecting portion, and a fastening nut attached to the outer circumferential surface of the connecting pipe to connect the connecting pipe and the multi pipe.

Manufacturing costs can be achieved by equipping the complex piping structure provided on the outside of the outdoor unit neatly so that the surroundings are not only tidy, but also having a multi-pipe that allows the pipe connection structure to be made of a small number of parts and a connecting pipe that connects the airtight unit to the outdoor unit in an airtight manner. Not only can lower the cost, but also improve the working speed when connecting the pipe can reduce the labor cost, and ultimately shorten the air can be economically excellent effect.

Air Conditioner, Outdoor Unit, Plumbing, Compact, Connection, Fastening, Slope, Limit, Travel Distance

Description

Pipe assemblies provide a compact connection structure {PIPE ASSEMBLY}

The present invention relates to a pipe assembly that can be connected to the air conditioner outdoor unit to give a visually messy image and to simplify the conventional pipe connection structure that was inefficient even in the pipe connection work,

More specifically, a multi-pipe having a branch pipe for connecting parts and having a threaded portion at one end thereof, a first connection part in surface contact with the multi-pipe, and a first communication part communicating with the first connection part. And a connection pipe formed of a second connection part formed in a size smaller than an outer circumferential diameter of the first connection part, and a coupling nut mounted on an outer circumferential surface of the connection pipe to connect the connection pipe and the multi pipe.

Pipes provided in various mechanical devices such as water and sewage pipes, cold and hot water pipes in various buildings, and outdoor and indoor air conditioners that require fluid supply are connected between pipes according to the surrounding conditions and various design conditions. Are interconnected by means of use,

The connection structure between the pipe and the pipe has been fastened by using flanges formed on both ends of the pipe, or by using various clamping means.

In addition, the connection method of the pipe has been improved airtightness by using various packings, gaskets, etc. in order to prevent leakage of the fluid flowing inside the pipe,

As such a structure for connecting the pipes, Utility Model Registration No. 20-203057, `` Pipe Heat Connection, '' and Utility Model Registration No. 20-335463 `` Firework Piping Connection Structure '', Utility Model Registration No. 20-299412 `` Pipe Connection structure, Utility Model Registration No. 20-437907, "Air-conditioning pipe connection device", and Utility Model Publication No. 20-08-0000142, "Stainless pipe piping connection material".

In addition, in the system air conditioner using a plurality of indoor units connected to one outdoor unit, which is popular these days, especially in a water-cooled system air conditioner,

Outside the outdoor unit is connected to the outdoor unit, and various various measurements such as flow rate, hydraulic pressure is made, and various kinds and sizes of pipes and measurement devices for the flow of water are provided and connected to the indoor unit. That is, as shown in Figure 5, in the water-cooled system air conditioner, several pipes are connected outside the outdoor unit, and the connected pipes and pipes are equipped with devices or valves for measurement of flow rate, hydraulic pressure, temperature, etc. In addition to the requirement, the pipes were exposed and the appearance was messy.

In addition, the conventional external piping structure P shown in FIG. 5 has various components such as a strainer 1, a thermometer 2, a pressure gauge 3, a valve 4, and the like, so that each of these pipes is separate. Through P2, P3)

In addition, even in the connection pipe structure (C) formed by the letter "c" for connecting the outdoor unit (A) and the external pipe, in order to connect in the "c" shape, various piping parts must be connected and completed.

There is a problem in that a large number of parts for connecting the pipes.

In addition to the conventional technology mentioned above, the outdoor unit and the external piping shown in FIG. 5 have a structure in which a separate member such as a packing must be used in order to prevent leakage of the contents to be penetrated. Accordingly, there is a problem that the product price increases.

In particular, the packing inserted into the tube to improve the airtightness will wear or lose its function over time due to the pressure of the fluid flowing inside the tube or due to frequent connection work,

Eventually, there is a problem that the airtightness is lowered and foreign substances easily penetrate or leak internal contents due to this.

Furthermore, since there are many parts, there is a problem in that the fastening work is complicated and the user cannot easily do it.

In the present invention, in consideration of the above problems, it is composed of a small number of parts can not only reduce the manufacturing cost, but also can improve the work speed when connecting the pipe can reduce the labor cost, the pipe of a compact structure that can shorten the air The purpose is to provide an assembly.

In addition, in the connection structure connecting the outdoor unit with the pipe, it is aimed to provide a compact pipe assembly that anyone can easily connect by ensuring a confidential pipe connection by simply tightening a few parts. .

In particular, an object of the present invention is to provide a pipe assembly having a structure capable of neatly arranging a complicated and visually unstructured piping structure connected to an outdoor unit in a water-cooled system air conditioner.

Pipe assembly according to the present invention for achieving the above object,

A branch pipe is provided for connecting parts, and at one end of the outer periphery, a multi pipe having a screw part is formed, a first connection part which is in surface contact with the multi pipe, and the first connection part is in communication with the first connection part. It characterized in that it comprises a connecting pipe consisting of a second connecting portion formed in a size smaller than the outer circumferential diameter of the connection nut, and a fastening nut which is mounted on the outer circumferential surface of the connecting pipe to connect the connecting pipe and the multi-pipe.

In addition, the fastening nut according to the present invention is composed of a corresponding screw portion is fastened to the threaded portion of the multi-pipe, the mounting portion is formed with a coupling hole for connecting the corresponding screw portion and the second connecting portion is inserted into the size smaller than the inner peripheral diameter of the corresponding screw portion ,

The mounting portion is characterized in that the forward movement distance is limited by the first connector.

In addition, the connection pipe is characterized in that it is further provided with a restriction for limiting the reverse travel distance when the screw is loosened for the multi-pipe of the fastening nut.

In addition, the multi-pipe of the present invention is characterized in that it is provided with a vibration absorbing unit for absorbing the vibration generated during operation of the outdoor unit.

According to the pipe assembly of the present invention, it is possible to clean the complicated piping structure provided on the outside of the outdoor unit neatly tidy surroundings

By providing a multi-pipe that allows such a pipe connection structure to be made of a small number of parts and a connecting pipe that connects the airtight to the outdoor unit airtight

Not only can the manufacturing cost be lowered, but the work speed can be improved when the pipe is connected, thereby reducing labor costs, and ultimately, the air can be shortened and economically excellent effects can be obtained.

In addition, the multi-pipe and the connecting pipe can be securely fastened only by fastening the fastening nut mounted on the connecting pipe to the multi-pipe.

Particularly, in the present invention, a cross section between the multi-pipe and the connection pipe is formed to be inclined, and the formed inclination direction is also formed so that the connection pipe is formed to accommodate the multi-pipe.

Connection pipes were constructed by connecting pipes of different diameters so that the forward and backward travel distance of the fastening nuts could be limited.

As a result, the compact structure alone can guarantee excellent workability, product quality, and airtightness.

Hereinafter, preferred embodiments of the present invention will be described with reference to the accompanying drawings.

1 is a perspective view of a connection pipe according to the present invention, Figure 2 is a perspective view of a multi-pipe connected to the connection pipe shown in FIG.

3 is a partial cross-sectional view showing a fastened state of the multi-pipe and the connection pipe according to the present invention, Figure 4 is a state diagram showing a case in which the present invention is applied to the outdoor unit of the water-cooled system air conditioner.

For reference, Figure 5 is a state diagram showing a piping structure connected to the outdoor unit in the existing water-cooled system air conditioner.

The pipe assembly according to the present invention is commonly used to connect piping between various mechanical devices, but for convenience of description, the present invention will be limited to a pipe structure connected to the outdoor unit for a water-cooled system air conditioner.

Recently, the system air conditioner is in the spotlight, and the system air conditioner refers to a system capable of operating several air conditioners (indoors) by installing an outdoor unit. In the past, as many air conditioners were installed as the air conditioner was installed, recently, such a system air conditioner is becoming more common due to technology development.

In addition, in the air conditioning cooling method, there is an air cooling method for cooling hot refrigerant with air and a water cooling method for cooling with water, and in particular, parts connected to an outdoor unit around the outdoor unit by a cooling method called water cooling to measure hydraulic pressure, flow rate, or temperature, etc. The installed piping structure is formed as shown in FIG.

That is, as shown in Figure 5, around the outdoor unit (A) is provided with pipes (P) connected to the indoor unit, such a pipe is composed of a number of parts by the connecting pipe (C) forming a "c" shape of the outdoor unit Is fastened with As such, the pipes installed around the outdoor unit are not visually suitable because the large installation space is exposed to the outside of the pipes. In addition, there are many parts in the piping work, it takes a long time.

Therefore, in the present invention, as shown in Figure 4, it is connected to the outdoor unit (A) is connected to various types of components, such as a hydraulic system, a flow meter, a strainer, a thermometer, occupied a large space for the pipes occupy a large space 10 It was possible to organize in one kit (K), and even when the outdoor unit (A) and the pipes, that is, when the multi-pipe 10 is connected to the connection pipe 20 and the fastening nut 30 of a simple structure is adopted to be compact It provides a connection structure.

In more detail, as shown in Figures 1 to 3, the present invention is a pipe consisting of a multi-pipe 10, the connection pipe 20, the fastening nut 30 connecting the multi pipe and the connection pipe. Assembly.

The multi-pipe 10 is provided with a branch pipe 15 for connecting various components, such as flowmeters, hydraulics, valves, strainers, constant flow valves, which are devices required for water-cooled air conditioners, and one end of the threaded portion 11 ) Is formed. The branch pipe is determined according to the number of parts of the hydraulic system 3, the valve 4, the strainer 1, the constant flow valve 5 and the like fastened to the multi-pipe.

In the existing pipe structure, in order to install a flow meter, a valve, etc., small pipes must be provided for connecting each part, and the parts are connected through the fastening means to connect the pipes.

In this case, not only a long work time is required, but also the installed piping structure becomes large, thereby making it impossible to obtain a compact structure.

Therefore, the multi-pipe 10 of the present invention is provided with a plurality of branch pipes (15) in the multi-pipe itself to be able to fasten the necessary parts such as a hydraulic system in the branch pipe 15 to provide a compact piping structure It becomes possible.

In particular, it is preferable that the multi-pipe further includes a vibration absorbing unit 18 capable of absorbing the vibration that may be generated when the outdoor unit is operated as well as the branch pipe 15.

The vibration absorbing part 18 is made of an elastic material so that it can be flexibly deformed. As shown in FIG. 5, a specific configuration is the same as that of the configuration 18 'installed in the pipe connected to the outside of the outdoor unit. The description of the configuration is omitted.

Therefore, the multi-pipe 10 of the present invention is formed integrally with the vibration absorbing unit 18 as well as the branch pipe 15 that can fasten a variety of parts.

As a result, the multi-pipe 10 of the present invention has all the functions of the pipes that were installed outside the existing outdoor unit, while making its structure compact, it is possible to neatly handle complex pipe connections, and absorbs vibrations due to the operation of the outdoor unit itself You can do it.

Next, referring to the connection pipe 20, the first connection part 21 is in surface contact with the multi-pipe 10 in contact with the first connection part, and formed in a size smaller than the outer peripheral diameter of the first connection part and in communication with the first connection part. It consists of a 2nd connection part 22 and the 3rd connection part 23 mentioned later.

The fastening nut 30 has a corresponding screw part 31 fastened to the screw part 11 of the multi-pipe, and a mounting part 32 having an insertion hole 32a connected to the corresponding screw part and into which the second connection part 22 is inserted. )

The mounting portion 32 is for limiting the forward movement distance of the fastening nut 30 when screwing with the screw portion 11 of the multi-pipe, the diameter size of the insertion hole (32a) formed in the mounting portion of the first connection portion 21 It is preferable that the outer circumferential surface is smaller than the diameter size.

Therefore, even when the fastening nut 30 is moved on the second connecting part 22 of the connecting pipe 20, the moving distance of the mounting part 32 is limited by the first connecting part 21, thereby preventing the fastening nut 30 from being separated. Will be.

In addition, the present invention further includes a third connecting portion 23 having a diameter larger than the outer circumferential surface diameter of the second connecting portion 22 and communicating with the second connecting portion, which is a restriction for limiting the backward movement distance of the fastening nut. It will function.

That is, when the fastening nut moves indefinitely in the storage or movement of the connection pipe 20, it will hit another fastening nut provided on the opposite side of the connection pipe,

This is because it is preferable that the connection pipe is provided with a limiting portion capable of limiting the moving distance of the fastening nut in order to solve the problems such as the loud noise generated by the bumping and the fastening nut being broken.

In addition, in the present invention, the configuration of the diameter difference between the second connecting portion 22 and the third connecting portion 23, more specifically, the diameter of the third connecting portion 23 is larger than that of the second connecting portion 22. It is also related to the insertion of the fastening nut into the connecting pipe.

That is, in order to insert the fastening nut 30 in the connection pipe 20 during the manufacture of the present invention, the connection pipe is cut at a predetermined position, and the connection nut can only be welded after inserting the fastening nut.

In this case, in the case of simply welding the connecting pipe having a certain size of surface, the welded marks appear in appearance and thus the productability is deteriorated.

However, in the present invention, as described above, the connecting pipe 20 is formed of the first connecting portion 21, the second connecting portion 22, and the third connecting portion 23 having different diameters from each other and the fastening nut is inserted into the second. Since the diameter of the connection is the smallest,

The operator cuts any one of the contact surfaces of the first connector and the second connector or the contact surfaces of the second connector and the third connector, inserts the fastening nut into the second connector, and then welds the cut surface to the difference in diameter of each connector. This causes the welded part to be visually obscured.

Of course, the cutting of each connection part is to cut the contact surface (P) of the second connection portion and the third connection portion rather than cutting the contact surface of the first connection portion and the second connection portion so that the mounting portion can be closely mounted to the first connection portion. desirable.

As a result, the third connector further includes a third connector larger than the diameter of the second connector, thereby limiting the backward movement distance of the fastening nut and visually covering the welded portion, thereby increasing the productability.

Next, in order to prevent leakage of contents in the pipe and to facilitate jointing between the pipes, the surfaces T1 and T2 which are in contact with each other when the connection pipe 20 and the multi pipe 10 are coupled to each other are inclined. In addition, the inclined direction is preferably such that the connecting pipe accommodates the multi pipe.

This is because the cross section of both pipes is inclined to be inclined rather than horizontally contacted to connect both pipes.

Widen the contact area between pipes,

It is not a structure in which both pipes are simply abutted, but a multi-pipe is inserted into the connection pipe and fastened.

In the end, it improves confidentiality by preventing the risk of leakage.

In addition, in the inclined direction, it is preferable that the connecting pipe 20 is formed in a shape that accommodates the multi pipe 10.

The fastening nut 30 is mounted on the connecting pipe 20, and when tightening the fastening nut, the fastening nut 30 is also configured to accommodate the multi pipe 10.

This is because the connection pipe 20 which is in contact with the multi-pipe 10 also has an inclination in the form of accommodating the multi-pipe in the same way as the fastening nut 30 to improve airtightness for preventing leakage.

Furthermore, when the connection pipe 20 is fastened to the multi pipe 10, the inclined direction in which the connection pipe receives the multi pipe is good for the connection pipe 20 to be inserted, and then the fastening work of the fastening nut 30 is also performed. Because it is convenient.

In the foregoing description, the pipe assembly having a specific shape and structure has been described with reference to the accompanying drawings. However, the present invention may be variously modified and changed by those skilled in the art, and such modifications and changes may be protected by the present invention. Should be interpreted as being within the scope.

1 is a perspective view of a connecting pipe according to the present invention.

2 is a perspective view of a multi-pipe connected to the connection pipe shown in FIG.

Figure 3 is a cross-sectional view showing a coupling state of the connection pipe and the multi pipe according to the present invention.

Figure 4 is a state of use of the outdoor unit and its piping kit to which the present invention is applied.

Figure 5 is a state diagram of the piping structure outside the conventional outdoor unit and outdoor unit.

* Description of the symbols for the main parts of the drawings *

10: Multi piping 20: Connection piping 30: Tightening nut

11: thread 15: branch pipe 18: vibration absorbing part

21: first connecting portion 22: second connecting portion 23: third connecting portion

31: counterpart threaded portion 32: mounting portion 32a: insertion hole

T1, T2: Slope A: Outdoor Unit K: Kit

Claims (6)

A branch pipe having a branch pipe for connection with parts and a threaded portion formed at one end of the outer circumference; A connection pipe including a first connection part in surface contact with the multi pipe and a second connection part communicating with the first connection part and formed to have a size smaller than an outer circumferential diameter of the first connection part; And Is attached to the outer circumferential surface of the connecting pipe is a fastening nut for connecting the connecting pipe and the multi pipe; The fastening nut is Comprising a threaded portion that is coupled to the screw portion of the multi-pipe, and the mounting portion is formed with a coupling hole is connected to the corresponding screw portion and the coupling hole for inserting the second connection portion with a size smaller than the inner peripheral diameter of the corresponding screw portion, The mounting unit provides a compact connection structure, characterized in that the forward movement distance is limited by the first connector. delete The pipe assembly of claim 1, wherein the connection pipe further includes a restriction for limiting a backward movement distance when the screw is loosened to the multi pipe of the fastening nut. The method of claim 3, wherein the limiting portion A pipe assembly providing a compact connection structure, characterized in that the third connection portion having a diameter larger than the outer peripheral surface diameter of the second connection portion and in communication with the second connection portion. The method of claim 1, The pipe assembly provides a compact connection structure, characterized in that the vibration absorbing portion for absorbing the vibration generated when the outdoor unit is operated. The method of claim 1, To facilitate the insertion of the connection pipe to the multi-pipe while the end surface of both pipes are formed to be inclined to prevent leakage of the contents, The inclined direction is a pipe assembly providing a compact connection structure, characterized in that the connecting pipe is formed in the form of receiving a multi-pipe is in contact with both pipes.

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