KR20030065675A - A connection device of tube - Google Patents

Abstract

PURPOSE: A connection pipe is provided to easily perform the connection work of the connection pipe by improving the structure of a connecting unit. CONSTITUTION: Connection pipes(1,11) are composed of a body unit, a first flange unit integrally formed at one side of the body unit, and a second flange unit integrally formed at the other side of the body unit. The first flange unit has a groove(39) into which a watertight member is inserted, and a coupling groove(37) coupled with the second flange unit. A plurality of cut units are formed at the end of the first flange unit. The second flange unit has a protrusion(35) coupled with the coupling groove. An extended unit(36) in the second flange unit is extended to the groove in the first flange unit when the protrusion is coupled with the coupling groove.

Description

A connection device of tube

The present invention relates to the structure of the joint pipe is formed at both ends of the connecting means, to improve the structure of the joint to facilitate the connection of the joint pipe to reduce the work maneuver according to the connection work and at the same time The present invention relates to the provision of a joint pipe to increase water tightness.

In general, the joint pipes buried in the ground or installed on the ground to allow fluid flow can be divided into synthetic resin pipes, concrete pipes, and metal pipes according to the intended use. Each of the pipes is cut to a certain length to be connected and assembled. do. Moreover, metal tube synthetic resin tubes etc. are often comprised so that the surface may have spiral curvature so that an external load may be fully endured.

The present invention is suitable for the structure of a joint pipe made of a synthetic resin having spiral bends on its surface, but is not limited thereto, and can be applied to flat tubes, thin metal tubes, and the like of general synthetic resins.

The connection part of the conventionally known joint pipe is comprised by the flange which has the several screw insertion hole in the both ends of a joint pipe.

The flange and the flange are properly aligned with each other, and then the bolts are inserted into the screw insertion holes of the flange to connect the joint pipes. Of course, in order to improve the watertightness of the flange and the flange, that is, the sealing rubber packing is inserted into the connecting part and then the bolt is fastened. Not only does it fall drastically, but there is a limit to the connection between the flange and the flange so that the joint is not stepped.

In addition, since the bolts are fixed to each other by inserting bolts into the screw insertion holes formed directly at the edges of the flanges, deviations in tightening force occur during the tightening of the bolts, which causes easy cracking or warping of the flanges. There is a structural problem.

The present invention has been made in view of the above problems, the connecting means of the joint pipe of the present invention extends the tube portion by a predetermined length to the outside of the insertion flange (second flange) to form a protrusion, water polo flange (first flange) Inside the through hole of the protrusion constitutes the coupling groove is fitted.

In addition, a locking jaw is integrally formed around the flange outer surface of the fitting pipe, and a binding band is fitted to each of the locking jaws.

The binding band is configured in the form of a band and a plurality of connectors in the transverse direction and the binding band fixing portion in the longitudinal direction, respectively.

Particularly, the binding band used to fasten the water plunger flange and the insert flange by tightly inserting a bolt into the connector is made of a material stronger than that of a joint pipe made of synthetic resin, that is, steel metal or the like to tighten the bolt. It is possible to evenly distribute the deviation of the bolt tightening force applied to the flange portion in the process.

As described above, when the protrusions and the coupling grooves are formed on the flanges, the fittings can be easily aligned when the water plungers and the inserting flanges are coupled, and the metal binding in the process of fastening the binding bands fixed to the locking jaws of the flanges. Allow the band to evenly distribute the deviation of the bolt tightening force.

Another structure of the connecting means of the joint pipe of the present invention constitutes a water plunger flange portion (first flange) at one end of the joint pipe, and constitutes an inserting flange portion (second flange) at the other end of the joint pipe, The insertion flange portion is thicker from the front to the rear portion is configured to form a stepped end of the rear end, and the inner surface of the water mouth flange is formed with a coupling groove portion into which the insertion flange is fitted, and a ring-shaped groove for inserting the rubber packing. In particular, when the insertion flange and the water plunger is coupled, the extension of the insertion flange is configured to extend to the position passing the rubber gland insertion groove grooves so that the end of the insertion flange to maintain the airtight seal and the rubber packing inserted into the groove groove.

In addition, at least one cutout portion is formed around the water port flange to facilitate the insertion of the insertion flange.

The cutout may be configured to an appropriate depth within a range not exceeding the position of the rubber gutter insertion groove.

After the water fusion flange and the insertion flange is coupled, the inlet of the water plunger flange is opened due to excessive tensile force or load, thereby fixing the outer surface of the water plunger flange with a binding band so as not to be separated.

After inserting the insertion flange into the waterway flange as described above, by fixing the outer surface of the insertion flange firmly using a general binding band to prevent the opening of the waterway flange due to the incision and at the same time the bolt tightening according to the connection of the joint pipe This greatly simplifies the work process and reduces the working time.

Accordingly, it is an object of the present invention to provide a connecting means of a joint pipe which can be easily connected by positioning.

Another object of the present invention is to simplify the operation of connecting the joint pipe, and to provide a connection means of the joint pipe that does not degrade watertightness.

1 is a perspective view of a joint pipe for explaining a first embodiment of the present invention,

Figure 2 is a front view showing the notch cut in the state in which the joint is coupled to explain the first embodiment of the present invention,

3 is a perspective view of a joint pipe for explaining a second embodiment of the present invention;

4 is a cross-sectional view for describing a second embodiment of the present invention.

5 is a cross-sectional view showing a state in which the joint is coupled to explain the second embodiment of the present invention,

6 is a state diagram of the coupling of the joint of the second embodiment of the present invention.

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

1, 11-fitting pipe 2, 12, 22-hanging jaw

3, 23,-Water polo flange (1st flange)

13, 33-shovel flange (2nd flange)

4, 35-protrusion 5, 37-coupling groove

6 -16-Tightening Band 7-End Connection

8-Fixture 9-Bolt

30-Incision 36-Extension

38-Rubber Packing 39

The present invention is a tubular portion formed with a fluid passage therein for achieving the above object, a first flange portion formed integrally with the tubular portion at one end of the tubular portion, and integrally with the tubular portion at the other end of the tubular portion In a joint pipe having a second flange portion formed,

The tubular portion extends by a predetermined length to the outside of the second flange to form a protrusion, and the inside of the through hole of the first flange is characterized in that the protrusion is provided with a coupling groove coupled.

The outer surface of the first flange portion and the second flange portion is formed with a squeezing jaw, respectively, and fastening the binding band to the locking jaw, respectively, and fastening the binding band to each other to fix the first flange and the second flange. .

In a joint pipe of another structure of the present invention, the first flange portion includes at least one or more annular grooves into which a watertight member is inserted, and a coupling groove for fastening the second flange portion to an inner surface thereof. 1, an outer end end of the flange portion is provided with an incision that is cut by a predetermined length in the direction of the central axis of the tube portion,

The second flange portion includes a protrusion that protrudes in a shape corresponding to the coupling groove of the first flange portion, the extension portion of the second flange portion when the protrusion is fitted into the coupling groove of the first flange portion And extending to a position passing through the recess of the first flange portion.

The locking jaw of the binding band is configured at the cutout position of the outer surface of the first flange portion, and the binding band is fastened to the locking jaw.

Hereinafter, the technical configuration and operation of the present invention will be described in detail with reference to FIGS. 1 to 6.

Example 1

The structure and operation of the joint pipe of the first embodiment of the present invention will be described using the structures of FIGS. 1 and 2.

A water plunger flange portion (first flange portion 3) is integrally formed at the end of the helical joint pipe 11 made of synthetic resin, and a locking jaw 12 is formed on the outer surface of the water plunger flange portion 3. A binding band 6 made of steel metal made of a material having a stronger strength than that of the water flange is inserted into the locking jaw, and the binding band 6 is fixed to the water flange by screwing the fastener 8. In addition, the coupling groove 5 is formed on the inner surface of the tube portion of the water port flange.

In the present embodiment, but the tube portion illustrated a circular pipe structure, even if the tube portion of the pipe is configured in a square does not violate the object of the present invention.

On the other hand, one end of the joint pipe (1) the insertion flange (second flange portion: 13) is formed integrally with the joint pipe, the outer surface of the insertion flange portion engaging jaw (2) of the same structure as the water pipe flange This configuration, the binding band 6 is fixed to the locking jaw. The end of the insertion flange 13 is formed with a projection (4) so that the tube portion is extended by a predetermined length to be fitted into the coupling groove (5) of the water flange.

Water polo flange 1 and the insertion flange 13 is configured as described above is coupled and fastened as shown in the structure of FIG.

That is, in the state in which the projection 4 of the insertion flange is fitted into the coupling groove 5 of the water plunger flange, the joint pipes are aligned with each other, and the binding band fixed to the engaging jaw of the respective joint pipes 1 and 11 ( 6 to connect the joint pipe (1) and the joint pipe (11) by fastening the bolt (9) to the connector (7).

The connector 7 is configured in plurality in the transverse direction of the binding band so that the joint pipes can be firmly fixed to each other.

The other ends of the joint pipes (1) and (11) are respectively configured with a water flange and an insertion flange are configured to continuously connect the joint pipes.

When the flange portion is configured as described above, it is easy to align the position when the water plunger flange and the insert flange portion are coupled, and the metal binding band of the bolt tightening force in the process of fastening the binding band fixed to the locking jaw of the flange portion together. It acts to distribute the deviation evenly, thereby preventing distortion and cracking of the joint pipe and increasing water tightness.

Example 2

3 to 6 will be described the structure and operation of the joint pipe of the second embodiment of the present invention.

A water plunger flange portion (first flange portion 23) is integrally formed at the end of the spiral fitting pipe 11 made of synthetic resin, and a locking jaw 22 is formed on the outer surface of the water plunger flange portion 23. The inner surface of the water port flange portion is provided with a ring groove 39 into which the rubber packing 38 is fitted, and the projection 35 formed on the outer surface of the insert flange 33 is fitted to the outside where the ring groove is formed. Combination groove 37 can be configured. In the present embodiment, but only one annular groove 39 is configured to illustrate the structure, two or more annular grooves may be configured at regular intervals on the inner surface of the water polo flange.

When the projection part 35, that is, the insertion flange 33 is inserted into the coupling groove, the inlet part is cut in a predetermined depth along the direction of the center axis of the joint pipe so that the projection part is not caught by the mouth of the mouthpiece flange part ( A plurality of 30) is formed at equal intervals. The incision should act to allow the insertion flange to be easily fitted to the water plunger flange, and should not affect the watertightness of the joint pipe so that the end portion of the incision should not exceed the position where the recess groove 39 is installed.

On the other hand, the structure of the insertion flange 33 to be fitted to the water polo flange 23 is an extension portion 36 is inserted into the airtight flange in a substantially airtight state, and the end portion is gradually thickened from the extension in the stepped form It is provided with the protrusion part 35 comprised.

The water polo flange 23 and the insertion flange 33 configured as described above are combined as shown in FIG. 5. In particular, in the structure of FIG. 5, when the water plunger flange and the inserting flange are combined, the extension part 36 should be configured to extend to the position passing through the annular groove 39 in which the rubber packing 38 is fitted.

As described above, the extension portion of the insert flange portion is contacted with the rubber packing through the circular groove of the water port flange to maintain the watertightness of the flange portion.

After the insertion flange is inserted into the water polo flange, the binding band 16 of FIG. 3 is fastened to the locking jaw 22 formed on the outer surface of the water polo flange 23.

The structure of the present embodiment does not need to configure the locking jaw to fix the binding band to the outer surface of the water polo flange and the inserting flange, respectively, like the first embodiment, it is only necessary to configure the locking jaw only on the outer surface of the water polo flange.

In particular, it is sufficient that the binding band 16 is composed of only one fastener 8 without a connector installed in the transverse direction around it.

Moreover, the inside of the said pipe | tube may be comprised by the square shape, such as a quadrilateral, through which filthy water or a fluid can flow.

In the present embodiment, the coupling structure of the water pipe and the insertion flange of the joint pipe is limitedly illustrated and described, but the water pipe flange 23 and the insertion flange 33 are respectively formed at both ends of the joint pipe, and the joint pipes are continuously formed. This is followed by a structure that can be fixed.

The present invention has the effect of greatly improving the connection work time and the difficulty of the operation of the joint pipe by improving the structure of the flange portion of the joint pipe easy to fasten with each other as described above.

In addition, by aligning the flanges with each other, the alignment means for preventing the occurrence of positional shifts are additionally formed in the flange portion, thereby ensuring the reliability of the work, i.e., twisting or coupling of the fastening portion caused by the deviation of the tightening force of the bolts when the flange is fastened. There is an effect that can prevent the defect in advance.

In addition, since the connection portion of the flange is precisely coupled, there is an effect of improving the watertightness at the connection portion.

Claims (4)

A tubular portion having a fluid passage formed therein, a first flange portion 23 formed integrally with the tubular portion at one end of the tubular portion, and a second planer integrally formed with the tubular portion at the other end of the tubular portion. In the fitting pipe (1), (11) provided with the branch part 33, The first flange portion 23 has at least one or more recessed grooves 39 into which a watertight member is inserted into an inner surface thereof, and a coupling groove 37 for fastening the second flange portion to the first flange. It is provided with a plurality of cutouts 30 which are cut by a predetermined length in the direction of the central axis of the barrel at the outer end of the branch, The second flange portion 33 is provided with a projection portion 35 protruding in a shape corresponding to the coupling groove 37 of the first flange portion 23, wherein the projection portion is the coupling groove of the first flange portion The fitting portion of the second flange portion when the fitting portion (36) is extended to the position passing through the annular groove (39) of the first flange portion. The method of claim 1, Fitting pipes, characterized in that the locking jaw (22) is formed in the position of the cutout portion 30 of the outer surface of the first flange portion, the binding band 16 is fastened to the locking jaw. The method of claim 1, The watertight member is a joint pipe, characterized in that made of a rubber packing (38). A tubular portion having a fluid passage formed therein, a first flange portion 3 formed integrally with the tubular portion at one end of the tubular portion, and a second planar integrally formed with the tubular portion at the other end of the tubular portion; In the joint pipe (1), (11) having a branch (13), The coupling groove 5 is provided inside the first flange portion 3, and the tubular portion extends by a predetermined length to the outside of the second flange 13, and includes a protrusion that is inclined in the coupling groove. The outer surface of the first flange portion (3) and the second flange portion (13) is composed of a swelling jaw (2), 12, respectively, and fastening the binding band (6) (6) to the locking jaw, respectively, A joint pipe, characterized in that configured to connect the first flange and the second flange by fastening a band (9) to each other.