KR101074734B1 - Connector for different pipes - Google Patents

Abstract

BACKGROUND OF THE INVENTION 1. Field of the Invention [0001] The present invention relates to a release tube connection port which is a type of a release tube connection port for connecting and fixing a large diameter pipe and a small diameter pipe, thereby allowing a quick and simple connection to a desired length by fitting each expansion tube into a large diameter pipe.

The release tube connector according to the present invention is a release tube connector in which a large diameter tube connection part and a small diameter expansion tube connection part are integrated, and the inner tube of the expansion tube connection part is formed by a square tube to force the elastic tube to be gripped no matter how much the tube is connected. It prevents it from twisting and forms a wedge thread on one side of the expansion pipe connection part and inserts a roll wedge to increase the frictional force on the outer surface of each expansion pipe to increase connection stability and connection reliability of the expansion pipe. It is done.

Large diameter pipe connection, expansion pipe connection, square tube, wedge thread, rain wall, roll wedge, cover

Description

Connector for different pipes}

BACKGROUND OF THE INVENTION 1. Field of the Invention [0001] The present invention relates to a release tube connection port which is a type of a release tube connection port for connecting and fixing a large diameter pipe and a small diameter pipe, thereby allowing a quick and simple connection to a desired length by fitting each expansion tube into a large diameter pipe.

Prior art compared to the present invention is Utility Model Registration No. 372275.

The prior art, as illustrated in Figure 1, of the small diameter expansion pipe (7) fitted over the support pipe (6) on the large diameter connecting portion (2) to which the upper end of the support pipe (6), the lower body of the flexible support The small-diameter connecting portion 3 for lower end fitting is located on the release tube connecting hole 1 formed integrally with the tapered portion 4 formed on the inner circumferential surface of the small-diameter connecting portion 3, and then the elastic pipe 7 is forcibly lowered. It consists of an elastic ring 5 which is elastically tightened by the pressure every time and fixes the expansion pipe 7 to the small-diameter connecting portion 3.

This has been proposed to remedy the shortcomings of conventional threaded telescopic telescopic fittings which are distorted and slow to adjust when tightening screws, but the problem is that the taper and elastic rings are effective when the prop and telescopic tubes are round tubes. In the case of a deformed tube having a flexible tube with a rectangular tube, there is a difference in the contact area of the elastic ring with respect to the outer surface and the corners, and also a difference in the force of the jade constriction. It is not suitable.

Even if the circular expansion pipe is fixed by the elastic ring clamped, even if it is touched, if the elastic pipe is firmly gripped and twisted in one direction, the fixed state of the expansion pipe is loosened because the fixed state is loosened. It also becomes difficult.

Therefore, an object of the present invention is to provide a release tube connector that can be connected quickly and easily and firmly to the desired length by inserting each pipe expansion tube in the large diameter tube.

This problem is a release tube connector in which a large diameter tube connection part and a small diameter expansion tube connection part are integrated. It is possible to achieve this by forming a wedge thread on one side of the flexible pipe joint and inserting a roll wedge to increase the friction force on the outer surface of each pipe of the flexible pipe. have.

First, it is possible to reliably connect the large-sized corridor and the small-scale new conduit.

Second, the expansion pipe inserted in the square hole of the expansion pipe connection does not turn even if it is pulled by force.

Therefore, there is no fear that the connection state between the expansion and contraction to the connection port will be loosened.

Third, when the expansion pipe is inserted into the square hole of the expansion pipe connection part, the roll wedge descends and causes friction with the corresponding surface of the expansion pipe. It can keep the stretched condition stably.

In FIG. 2, in the mold release pipe connection part 10 which concerns on this invention, the large diameter pipe connection part 11 and the small diameter expansion pipe connection part 12 are integrally formed.

The large diameter tube connecting portion 11 has a general shape suitable for circular tube connecting, and the singularity is the inner surface of the flexible tube connecting portion 12.

As shown in the figure, the inner surface of the expansion pipe connecting portion 12 is in the form of a square hole (13).

Considering that the commercially available square tube is a regular polygon, the square tube 13 also makes sense.

At least one side of the square hole 13 is emptied to form a wedge thread 14 in place.

The wedge chamber 14 is a place where the roll wedge 20 to lock the expansion pipe is inserted, and the upper side and the square hole 13 are flush with each other, and both sidewalls 14a are straight walls. The side walls 22 are loosely in contact with each other to induce them to move up and down without shaking, and at the outer ends of both side walls 14a, a rain wall 14b for always rolling the roll wedges 20 toward the lower end of the flexible pipe connecting portion 12 is provided. Formed.

It is formed on the upper end of the wedge chamber 14 is a cover locking hook 14c.

The roll wedge 20 is formed with a friction tooth 21 for pressing and locking the surface of the expansion pipe on the main surface of the round bar, when the roll wedge 20 rises and falls along the rain wall 14b, the side surface 22 is a side wall ( Guided by the inner surface of 14a).

The cover 30 is locked by covering the upper end of the wedge thread 14 so that the roll wedge 20 contained in the wedge thread 14 is prevented from coming back, and the hook 14a enters both side walls 31. The corresponding hook hole 32 to be caught is drilled.

3 is a cross-sectional view of the state locked by the roll wedge 20 in a state where the expansion pipe B of each pipe is inserted into the expansion pipe connection portion 12 of the release pipe connector 10 inserted in the upper end of the circular large diameter pipe A. It is shown.

Next, the method of connecting the expansion pipe B will be described.

In the state where the roll wedge 20 is inserted into the wedge thread 14 and the cover 30 is covered, the release pipe connector 10 is tilted so that the wedge thread 14 is horizontal or less, and then the roll wedge 20 is retracted and stretched. Insert each pipe expansion tube (B) into the pipe connection portion 12, then stand up and roll wedge 20 rolls down the inner surface of the rain wall (14b) to press the expansion pipe (B) to the expansion pipe ( B) is locked.

Pulling up and down the expansion pipe (B) in the state in which the expansion pipe (B) is locked by the roll wedge 20 as described above, roll wedge 20 retreats from the bottom surface of the rain wall (14b), stretch When the pipe (B) is lowered roll wedge 20 is lowered to lock the expansion pipe (B).

To shorten the exposure length of the expansion pipe (B), tilt the wedge chamber (14) horizontally downward to completely defeat the roll wedge (20), then operate the expansion pipe (B) to adjust the length, and then stand the roll wedge Locked by wedge bite by (20).

FIG. 4 illustrates a contact state of the roll wedge 20 with respect to one outer surface of the main surface of the flexible tube B, and is compared with the case where the roll wedge 20 is in contact with the circular flexible tube C of FIG. 5. Since the contact area is wide, the connection strength is large.

Although the above has focused on each expansion-contraction pipe | tube B, according to the design change of the expansion-contraction pipe | tube connection part 12, it can be applied also to a small diameter circular control expansion pipe.

The release tube connector according to the present invention can be applied to the elastic strut of the prefabricated hanger installed between the floor and the ceiling of the room, the elastic strut of the movable hanger, and the elastic strut used for other purposes.

1 is a cross-sectional view showing the use of the elastic ring tightening type tube connection port

Figure 2 is an exploded perspective view of a release tube connector according to the present invention

3 is a cross-sectional view of a release tube connection state of the release tube connection port according to the present invention.

Figure 4 is a state of contact of the roll wedge with each expansion pipe

5 is a contact state of the roll wedge to the circular control expansion pipe

6 is an exemplary view when the release tube connector according to the present invention is applied to an elastic post of a prefabricated hanger.

<Description of the symbols for the main parts of the drawings>

10: Release tube connection port

11: Large Landscape Connection

12: expansion pipe connection

13: pavilion

14: wedge thread

14b: rainwall

20: roll wedge

21: friction tooth

30: cover

Claims (3)

This is a release tube connector formed by integrating a large diameter tube connecting portion 11 and a small diameter flexible tube connecting portion 12, and having a wedge thread having a rain wall 14b on one side of the flexible tube connecting portion 12 having an inner surface formed by a square tube hole 13. A release tube connection port, characterized in that a roll wedge 20 having a friction tooth 21 for pressing an expansion tube is formed so as to be inserted to form (14). delete The method of claim 1, A hook pipe (14c) is formed on the upper end of the wedge chamber (14), and a release pipe connection port is characterized in that a cover (30) having a perforated hook hole (32) is covered on the side wall (31).

Images