KR20040025251A - Innovated head for polling cables - Google Patents

Abstract

PURPOSE: A head of duct inserter is provided to exchange easily the head of the duct inserter and reduce the frictional force within a duct in an inserting process by improving a structure of the duct inserter. CONSTITUTION: A head of a duct inserter includes a first body(11) and a second body(12). A front end of the first body(11) is formed with a shape of cone. A line connection hole is formed at a conic side of the first body(11). A plurality of rollers are formed on an outer circumference of the first body(11). The second body(12) includes a reel and a screw part. The first body and the second body are changed as much as a predetermined angle to the longitudinal direction. The first body is combined with the second body by using a ball bearing.

Description

Conveyor Heads {INNOVATED HEAD FOR POLLING CABLES}

The present invention relates to a barrel head, and more particularly, it is possible to easily replace the barrel head from the barrel, and to smooth the barrel work by reducing the friction with the inside in the straight line pipe and the bent pipe during the line work. It is related to the through-flow head to be able to proceed.

As is well known, in order to embed a communication cable, the ground is first excavated to connect a plurality of pipes to form a pipeline.

Thereafter, a manhole is formed at a predetermined interval (for example, 100 to 750 m) according to the terrain between the buried communication pipelines, and a communication cable is inserted into the communication pipeline through the manhole.

Here, before the communication cable is put into the communication line, the foreign matter (eg, water or mud), etc. inside the communication line is first removed, and the cable is inserted through the line, and the work is completed by laying the communication cable. .

1 is a view showing a conventional tumbler head used in the barrel working, the conventional tumbler head (1) is the tip portion is in the form of a cone so as to facilitate propulsion during the twirl, the end portion to connect the tether Towing ring 2 is provided.

However, such a conventional barrel head has a disadvantage in that detachment with the barrel reel is not possible and the barrel work is not smoothly made due to a lot of friction due to the lack of flexibility of the barrel head when passing inside the curved pipe.

Accordingly, the present invention is to solve the above disadvantages, it is possible to easily replace the line head from the liner, and to reduce the friction with the inside in the straight line pipe and the bent pipe line during the line work It is an object of the present invention to provide a through-air head for smoothly proceeding.

In the present invention for achieving the above object, in the barrel head used for the barrel of the line, the barrel head is made of a cone-shaped tip is formed with a line connecting hole for connecting the line in the conical surface A first body provided on the outer periphery so that a plurality of rollers can be rolled in the longitudinal direction, and a second body having a threaded portion detachably threaded with the linear reel, wherein the first body and the second body It is characterized in that it is coupled to be variable at a certain angle.

The above objects and various advantages of the present invention will become more apparent from the preferred embodiments of the invention described below with reference to the accompanying drawings by those skilled in the art.

1 is a front cross-sectional view showing a conventional through-air head.

Figure 2 is a front sectional view showing a through-air head according to the present invention.

Figure 3 is a state of use of the line vent head according to the present invention.

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

10; Straight ring 11; First body

12; Second body 13; Ball bearing

14; Connecting hole 15; roller

16; Fixing part 17; Variable angle

18; Ball bearing 19; Ball groove

20; Inclined plane 21; pipeline

22; Extension

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

Figure 2 is a front sectional view showing a through-air head used in the line of the pipeline according to the present invention.

As shown in Figure 2, the through-air head according to the present invention is detachably fixed to the line reel (10), consisting of a first body 11 and the second body 12, in particular, the first Body 11 and the second body 12 is characterized in that coupled to be variable at a constant angle with respect to the longitudinal direction of the conduit.

The first body 11 according to the present invention has a cylindrical shape having a diameter that can be sufficiently inserted into the pipeline, the tip is formed in a conical shape to facilitate the propulsion of the barrel when the barrel working, the best conical shape At the end, ball bearings (13) are mounted so that they can be deflected through cloud friction during contact with obstacles in the line. Meanwhile, a line connecting line 14 for connecting a line (not shown) in a direction perpendicular to the pipe direction is formed at one end of the cone through the conical surface.

In addition, the roller 15 which can be rolled in the longitudinal direction of the conduit on the cylindrical outer periphery of the first body 11 is installed at regular intervals to the outside of the first body 11 to be contacted when passing through the inner surface of the conduit The inner periphery of the periphery and conduit can be brought into rolling contact with the roller 15. As is known, the rolling contact by the roller 15 has the effect of minimizing the friction of the contact surface.

One end of the second body 12 according to the present invention is provided with a fixing portion 16 to be detachably fixed using a fastening screw to the barrel reel (10).

In particular, the first body 11 and the second body 12 are coupled by the angular variable means 17 to be variable at a constant angle with respect to the longitudinal direction of the conduit. In the exemplary drawing, a structure in which the first body 11 and the second body 12 are connected to the ball bearing 18 by the angle varying means 17 is described as an embodiment, but the present invention is not limited thereto. It is possible to substitute or change by various known technical means that can be changed.

Meanwhile, according to the exemplary embodiment of the present invention, an extension part 22 having a ball bearing 18 formed at one end of the first body 11 may be installed, and a ball bearing may be inserted at one end of the second body 12 facing each other. Ball groove 19 is formed, the inclined surface 20 is formed in the opening side of the ball groove 19 to limit the variable angle range of the extension portion 22.

As shown in FIG. 3, the tubular head configured as described above may reduce frictional force at the contact surface by the roller 15 when the tubular head passes through the conduit 21 during the tubing operation. When passing through 21, the first body 11 and the second body 12 are flexibly angled α according to the curved surface, so that the line work can be smoothly performed.

On the other hand, it is preferable to round the top end of the first body 11 so that the liner head does not interfere in the curved section during line work, and when the liner head encounters obstacles or the like in the conduit 21, it is preferable. It is preferable to round the last end of the second body 12 to prevent the retraction of the section and then move forward again.

In the above description, it should be understood that those skilled in the art can only make modifications and changes to the present invention without changing the gist of the present invention as it merely illustrates a preferred embodiment of the present invention.

Therefore, the present invention can easily replace the barrel head from the barrel, it is possible to reduce the friction with the inside in the straight line pipe and the bent pipe line during the line work the liner head to smoothly progress the line work The purpose is to provide.

Claims (5)

In the cylinder head used for the barrel of the pipeline, The liner head has a first body having a tip of a cone shape and a line connecting hole for connecting a line to a conical surface, and having a plurality of rollers rolled in a longitudinal direction on an outer circumference thereof; A through-hole head comprising a second body having a threaded portion and a detachable threaded portion, wherein the first body and the second body are coupled to be variable at a predetermined angle with respect to the longitudinal direction. The tumbler head according to claim 1, wherein the first body and the second body are ball bearing coupled. 2. The barrel tube according to claim 1, wherein a ball bearing is coupled to the conical tip of the first body. The method according to claim 1, wherein an extension portion formed with a ball bearing is installed at one end of the first body, and a ball groove into which a ball bearing can be inserted is formed at one end of the second body facing each other, and an extension of the extension is formed at an opening side of the ball groove. Convection head, characterized in that the concave inclined surface is formed so as to limit the angular range. 2. The tumbler head as claimed in claim 1, wherein the top end of the first body and / or the last end of the second body is rounded.