KR200330474Y1 - Locking apparatus for pipe - Google Patents

Abstract

Disclosed is a pipe fastening device.

The pipe fastening device, the pipe is coupled to one side and the union solder having a hollow coupling portion, and the other side pipe is formed in the end of the engaging jaw formed in the end coupled to the coupling portion and the other side of the pipe to push the engaging jaw to the coupling end And fastening members including fastening portions for communicating the first and second pipes, and fixing means installed on the union solders and the fastening members to fix the coupling states thereof.

The coupling part and the fastening part are formed by a double screw, which can be fastened by 1/2 rotation, and the fixing means of the protrusion member is formed inside the body of the union solder and the body of the fastening member fastened to the union solder. Has the advantage of being able to lock.

Description

Locking apparatus for pipes

The present invention relates to a pipe fastening device, and more particularly, to a pipe fastening device having only a union solder and a fastening member to connect two pipes in communication.

Generally, a long hollow pipe of circular or polygonal type is used for the transmission of liquids, gas bodies, acoustics, and other heating and cooling, and the pipes are usually used for transporting the liquids and gas bodies at a long distance. do. Pipes of a predetermined length are used to be fastened to each other, and the fastening portion must be fastened while maintaining airtightness and never be loosened unless artificially loosened.

A typical device commonly used for such pipe fastening is a union joint. The union joint can be communicatively connected to the pipe on one side and the pipe on the other side using a union nut and can be easily dismantled. In general, it is composed of a union nut for fastening both the union screw connected to one side of the tube and the union swivel end connected to the other side. Since it is freely detachable, it is often used when fastening the pipe.

1 is an exploded perspective view of a conventional pipe fastening device, Figure 2 is a schematic assembly cross-sectional view of FIG.

Referring to each of the drawings, the conventional pipe fastening device 10, the first solder (11a) is coupled to the hollow portion on one side, the union solder 11 having a threaded coupling portion (11b), and Bushing 12 is coupled to the coupling portion (11b) of the union solder (11), and a screw thread is formed on one side of the hollow portion formed, the fastening portion (13b) is coupled to the thread of the body portion of the bushing 12, the end A nut 13 fitted into the second pipe 13a having a locking jaw 13c formed therein, and an O-ring 14 fitted to one side of the locking jaw 13c of the second pipe 13a. )

The union solder (11) has a coupling portion (11b) formed with a thread on one side of the outer body portion of the outer body constituting the body, and has a head-shaped shape of a hexagon nut or bolt that is normally on the other side except the coupling portion. . The bushing 12 has a screw thread corresponding to the thread of the coupling portion 11b formed in the hollow coupled to the coupling portion 11b of the union solder 11, and is also screwed toward one side of the outer side of the body portion 11. It is formed is screwed to the fastening portion (13b).

The operation of the conventional pipe fastening device 10 configured as described above is as follows.

In order to communicate the first and second pipes 11a and 13a with each other, the second pipe 13a having the locking jaw 13c is closely attached to the end of the nut 13 and the locking jaw 13c formed on the opposite side of the end. The o-ring 14 is inserted into the N-type tube to closely adhere the second pipe 13a to the end. Then, the bushing 12 is screwed to the fastening portion 13b of the nut 13 by a predetermined length, and then the coupling portion 11b of the union solder 11 and the predetermined length are screwed into the hollow portion of the bushing 12. Combine. Thereafter, the nut-shaped portion of the union solder 11 is held by a spanner or other tool, pressed against the latching jaw 13c of the second pipe 13a, and fully tightened. Rotate once and tighten completely using a torque wrench or other tool. The disassembly process is performed in the reverse order of the fastening.

However, the conventional pipe fastening device 10 having the configuration and operation as described above has some problems as follows.

first; After rotating the nut a number of times, use a tool to fully secure the union solder and then tighten the nut completely. Therefore, workability is inferior.

second; The first problem requires multiple tools.

third; A lot of work is needed.

fourth; The number of parts of the pipe fastening device is large.

The present invention was devised to solve the above problems, and reduces the number of parts and the number of work, improve the work efficiency, shorten the working time, pipe fastening device that can be connected by connecting two pipes without using a tool The purpose is to provide.

1 is an exploded perspective view of a conventional pipe fastening device,

2 is an assembled cross-sectional view of FIG.

3 is an exploded perspective view of a pipe fastening device according to the present invention,

4 is an assembled cross-sectional view of FIG.

5 is a cross-sectional view of the union solder of FIG.

6 is a cross-sectional view of the fastening member of FIG. 4.

Brief description of the main symbols in the drawings

31 ... union solder 31a ... first pipe

31b ... coupling part 31c ... first protrusion member

32 ... fastening member 32a ... second pipe

32b ... Fastening part 32c ... Second projection member

32d ... Handle 32e ... Expansion clearance

33 ... O-Ring

In order to achieve the above object, the present invention, the pipe is coupled to one side and the union solder having a hollow coupling portion, and the other end pipe is fitted to the other pipe formed with the engaging jaw (13c) at the end of the other pipe is coupled And a fastening member including a fastening part for connecting the first and second pipes by pressing the locking jaw 13c to the end of the coupling part, and fixing means installed at the union solder and the fastening member to fix the coupling state thereof. It is characterized by that.

In the present invention, the fastening member has a handle portion extending from the body of the fastening member, the handle portion is formed with an expansion margin to expand the fixing means of the fastening member, the fastening member is a synthetic resin It is preferable that it is included.

In the present invention, the coupling portion and the fastening portion is formed of a double screw, and the fixing means includes a body of the union solder, and a protrusion member formed inside the body of the fastening member fastened to the union solder, respectively. .

Hereinafter, the present invention will be described in more detail with reference to an embodiment shown in the accompanying drawings.

3 is an exploded perspective view of the pipe fastening device according to the present invention, Figure 4 is an assembly cross-sectional view of Figure 3, Figures 5 and 6 are shown a cross-sectional view of the union solder and the fastening member of Figure 3, respectively have.

Referring to each of the drawings, the pipe fastening device 30 according to the present invention, the first pipe 31a is coupled to one side of the hollow and the union solder having a coupling portion 31b to the outside of the body ( Union Solder (31) is fitted to the second pipe (32a) formed with a locking jaw (13c) at the end and coupled to the coupling portion (31b) to engage the locking jaw (13c) of the second pipe (32a) A fastening member 32 including a fastening portion 32b for pressing the second end portions to communicate with the first and second pipes 31a and 32a, and the union solder 31 and the fastening member 32, Fixing means for fixing the coupled state is made of each.

The fixing means may include a first protruding member 31c formed on the body of the union solder 31 and a second protruding member 32c formed inside the body of the fastening member 32 fastened to the union solder 31. Each was formed. The first and second protrusion members 31c and 32c are round protrusions and are integrally formed with the union solder 31 and the fastening member 32. In addition, an O-ring 33 is inserted into one side of the locking jaw 13c of the second pipe 32a to increase the fastening force. The fastening member 32 is provided with a handle portion 32d extending from the body of the fastening member 32, and the handle portion 32d has a second protrusion member 32c of the fastening member 32. The expansion clearance 32e is formed in the shape of an opening so that the force can be forcibly pushed. The coupling portion 31b and the fastening portion 32b are formed of a multi-line screw, and are at least two lines of screws, and the fastening member 32 is made of synthetic resin, in particular, glass fiber. desirable.

The action of the pipe fastening device 30 according to the present invention configured as described above is as follows.

The first pipe 31a is inserted into one side of the body formed in a hollow shape, and the locking jaw 13c is formed at the end to the other side, and the O-ring 33 is fitted to the locking jaw 13c at the opposite side of the end. Two pipes 32a are fitted. Then, a fastening part 32 provided with a coupling part 31b of the union solder 31 formed by two rows of screws outside the body and a coupling part 32b having two rows of screws corresponding to the coupling part 31b therein. Tightly coupled. The coupling portion 31b and the coupling portion 32b are each formed by two rows of screws, and the coupling portion 31b and the coupling portion 32b are fastened to each other by screwing in 1/2 rotation.

At this time, the fastening member 32 is provided with a handle portion 32d extending from the body of the fastening member 32. When the grip portion 32d is rotated and pressed, the coupling portion 31b is fastened. It is screwed with the fastening portion 32b of the member 32. The first and second protruding members 31c and 32c meet side surfaces of the protruding members, and when the handle 32d is pressed against each other, the first and second protruding members 31c and the fastening member of the union solder 31 are pressed. The second protrusion member 32c of 32 is staggered with each other to engage the union solder 31 and the fastening member 32. Therefore, the first and second pipes 31a and 31b are connected in communication.

The first and second protruding members 31c and 32c may be alternately fastened to each other so that the material of the fastening member 32 is made of synthetic resin, and in particular, the handle 32d of the fastening member 32 includes This is because the expansion clearance 32e is formed so that the two projection members 32c are expandable. That is, when the fastening member 32 and the union solder 31 are coupled by pressing the handle 32d of the fastening member 32 to rotate the fastening member 32, the union solder 31 is used. When the first protruding member 31c of the pushing member pushes the second protruding member 32c of the fastening member 32, the second protruding member 32c temporarily retreats toward the expansion clearance 32e. When the first protruding member 31c passes the second protruding member 32c, the second protruding member 32c returns to its original position, and thus the fastening member 32 with respect to the union solder 31. ) Is locked.

As described above, the first and second protrusion members 31c and 32c are locked once again to perform a lock function to prevent loosening after the union solder 31 and the fastening member 32 are fastened. On the contrary, since the fastening member 32 is made of synthetic resin, the union solder 31 and the fastening member 32 are easily disassembled by holding the handle portion 32d of the fastening member 32 with an elastic force. Can be disassembled in the reverse order of tightening.

Pipe fastening device according to the present invention having the configuration and action as described above has the following effects.

first; Since the fastening member is made of synthetic resin, mass production is possible.

second; The first cause is the effect of weight reduction.

third; Improved assembly and workability can shorten working time.

fourth; Cost savings can be achieved by reducing the number of parts, mass production, shorter working hours, and the use of tools for fastening.

Although the present invention has been described with reference to one embodiment shown in the drawings, this is merely exemplary, and it will be understood by those skilled in the art that various modifications and equivalent embodiments are possible.

Claims (1)

Union solder having a pipe coupled to one side having a hollow coupling portion; It is fitted to the other pipe having a locking jaw formed at the end and screwed to the coupling portion to press the locking jaw of the other pipe to the coupling end to have a fastening portion for communicating the first and second pipes, extending from the body, and having an expansion margin formed therein. A fastening member having a handle portion; A fixing means installed on the union solder and the fastening member to fix the coupling state thereof, the fixing means including a body of the union solder and a protrusion member respectively formed inside the body of the fastening member fastened to the union solder. Pipe fastening device, characterized in that.