WO2014175666A1

WO2014175666A1 - Tube connecting pressure wheel

Info

Publication number: WO2014175666A1
Application number: PCT/KR2014/003573
Authority: WO
Inventors: 최익구; 김성한; 손동완; 손대익
Original assignee: 주식회사 세계주철; 한국수자원공사
Priority date: 2013-04-26
Filing date: 2014-04-23
Publication date: 2014-10-30
Also published as: KR101393913B1

Abstract

The present invention relates to a pressure wheel (1) for connecting tubes, the pressure wheel (1) comprising: a plurality of bolt mounting potions (5) to which joint bolts are mounted; a plurality of female screws (10) formed on the front surface of the pressure wheel (1); a plurality of installation stands (20) formed toward the upper side of the female screw (10) and having sloped surfaces (25) sloped toward the central portion of the tubes, a plurality of spikes (30) seated on the installation stands (20) to operate along the sloped surfaces (25) and having slits (35) formed at one side thereof; and bolts (40) mounted to the slits (35) of the spikes (30) and fastened to the female screws (10) of the pressure wheel (1), wherein components additionally formed in the pressure wheel (1) are formed of only the spikes (30) for pressing and fixing the tubes and the bolts (40) for directly operating the spikes (30), so that the configuration thereof is simple, thereby easily manufacturing the pressure wheel (1), improving productivity, reducing concerns of failure unlike a pressure wheel having a composite configuration, and making construction easy.

Description

Push ring for pipe connection

The present invention relates to a pressure pipe for connecting the pipe, in particular to improve the structure of the separation prevention pressure wheel is installed on the connection portion of the cast iron pipe is not only possible to combine a more stable pipe, but also to simplify the construction of the construction, as well as, There is no fear of breakdown, and it relates to a pressure ring for pipe connection that can be easily manufactured to improve productivity.

In general, a rear end portion of a pipe that is continuously installed such as a water supply pipe is formed by connecting a front end portion of another pipe connected to the socket by connecting to the socket. At this time, the connection part of the pipe is tightly and firmly fixed to each other, thereby leaving and Compression wheels to prevent leakage is coupled, as an example, the configuration of the conventional compression wheel described in Korean Patent Publication No. 10-1033000 (announced May 9, 2011) will be described below.

As shown in FIGS. 1 to 3, the conventional pressure wheel is alternately disposed with the bolt mounting part 120 and the spike housing 130 on which the joint bolt 180 is mounted on the pressure body 110, and the spike housing 130. The movable member 140 and the spike 150 are disposed in the interior thereof, and upper and lower holes 131 and lower holes 132 are formed at upper and lower portions of the spike housing 130, and bolts are formed at the lower holes 132. The threaded portion 162 of the 160 is inserted into the screw hole of the movable member 140 and the upper hole 131 of the spike housing 130, and then the bolt 160 protruding from the upper hole 131. The nut 170 is fastened to the threaded portion 162.

The inclined surface 142 is formed on the movable member 140 to be in close contact with the inclined surface 152 formed on the spike 150. When the bolt 160 is raised by tightening the nut 170, the head of the bolt 160 is raised. When the portion 161 lifts the movable member 140 and pushes the spike 150 while the inclined surface 142 of the movable member 140 is raised, the spike 150 protrudes into the opening 133 of the spike housing 130. At this time, the opening 133 of the spike housing 130 is formed toward the center of the pressing body 110, so that the spike 150 is compressed to the tube.

Hereinafter, referring to the installation example of the conventional pressure ring, first, the sealing ring 20 is seated in the socket of one side pipe body P1, and the front end portion of the other side pipe body P2 having the pressure wheel is inserted into the socket, and then the pressure wheel body When the joint bolt 182 is inserted into the bolt mounting portion 120 of the 110 and the joint nut 182 is fastened, the inner ring portion 112 of the pressure bearing body 110 presses the sealing ring 20 while both sides of the tubular body ( Watertightness can be maintained between P1 and P2.

Thereafter, when the nut 170 formed on the pressure wheel is turned, the movable member 140 supported by the head portion 161 of the bolt 160 is raised, and at this time, the step preventing portion 144a of the movable member 140 is broken while being broken. When the movable member 140 is raised and the movable member 140 is raised as described above, the spike 150 having the other inclined surface 152 contacting the inclined surface 142 of the movable member 140 is the spike housing 130. Both the tube bodies P1 and P2 are fixed by pressing the tube P2 while pushing in the direction of the opening 133.

However, according to the conventional pressing wheel as described above, in addition to the spike 150 for pressing and fixing the tubular bodies P1 and P2 and the bolt 160 for operating the spike 150, a separate movable member 140 and a nut ( In addition to the need for a large number of parts, such as 170, the guide means for guiding the operation direction and forming the

inclined surfaces

142 and 152 on the movable member 140 and the spike 150, respectively, also in constructing the parts. Each of them must be provided, and on the other hand, as the space in which the movable member 140 and the spike 150 are built, a spike housing 130 having a double structure must be formed, and the upper hole 131 for fastening the bolt 160 is provided. The structure is complicated, for example, a plurality of lower holes 132 must be formed.

In addition, in order to prevent the spike 150 from being pulled out of the opening 133 of the spike housing 130 in the process of mounting the pressure ring on the tubular body P2, a stepped portion 144a must be formed in the insertion portion of the movable member 140. In addition, the step 144a has a significant inconvenience in the installation as well as the structure, such as to break in the installation process of the pressure wheel.

That is, the conventional push wheel as described above is too complicated in structure, not only easy to manufacture, but also there is a high risk of failure, there was a problem not easy in construction.

The present invention is to solve the problems of the conventional pressure wheel as described above, to improve the structure of the pressure ring to enable a more stable coupling of the tubular body, as well as easy to manufacture and construction by simplifying the structure of the pressure ring It is an object of the present invention to construct a pressure ring for pipe connection without fear of failure.

According to the present invention for achieving the above object, the tubular connecting pressure ring includes a plurality of female threaded parts formed on the front surface of the pressure wheel in a tubular connecting pressure ring having a plurality of bolt mounting parts on which joint bolts are mounted. A plurality of mounting stages having an inclined surface inclined toward the center of the tube body, and a plurality of spikes seated on the mounting platform and operating along the inclined surface, and having a slit formed on one side thereof, and mounted on the slit of the spike, Characterized in that the configuration of the pressure ring for pipe connection having a bolt fastened to.

The present invention provides a guide protrusion on the inclined surface formed on the mounting table and a guide groove into which the guide protrusion is recessed in the spike seated on the inclined surface, and a plurality of teeth are formed at the tip of the spike. In addition, one side of the slit has an additional feature to the conduit connecting pressure ring of the configuration to open to the outside, and to form a support piece to the lower side of the bolt head formed on the bolt so that the spikes interlock when the bolt is disassembled. have.

According to the present invention having the above-described configuration, the parts added to the pressing wheel is composed only of the spikes for clamping the tubular body and the bolts for directly operating the spikes so that the configuration is simple and easy to manufacture and improve productivity, Unlike the pressure ring of the configuration, there is no fear of failure, and construction also has an easy effect. And since the operating direction of the spike operates not only in the center direction of the pipe body but also in the connecting direction of the pipe body, there is an effect of maintaining a tighter and more stable water tightness between both pipe bodies.

1 is a perspective view of a pressure ring for conventional tubular connection

Figure 2 is a cross-sectional view of the pressure ring for conventional tubular connection

Figure 3 is a state of use of the conventional pressure ring for pipe connection

4 is a front view of the pressure wheel for connecting the pipe according to the present invention;

5 is a perspective view showing the mounting table of the pressure wheel according to the present invention

6 is a perspective view showing a spike and a bolt of a pressure wheel according to the present invention;

7 and 8 is an operational state diagram of the pressure ring for pipe connection according to the invention

Figure 9 is a cross-sectional perspective view showing the operating state of the pressure ring for pipe connection according to the invention

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

1: pressure ring 5: bolt mounting part

10: female thread 20: mounting table

25: slope 26: guide projection

30: Spike 31: Tooth

35: Slit 36: Guide groove

40: bolt 41: bolt head

42: male thread 45: support

P: tube

Although the configuration of the pressure ring for connecting the pipe according to a preferred embodiment of the present invention in detail with reference to Figures 4 to 9, it does not show the configuration of the same joint bolt and joint nut as the conventional configuration. That is, the inner ring part of the pressure ring is sealed by inserting a sealing ring into the socket of one side of the pipe, inserting the front end of the other body having the pressure wheel into the socket, and inserting a joint bolt to the bolt mounting portion of the pressure wheel to tighten the joint nut. Pressurizing to maintain the watertight between the two tube bodies is the same as in the prior art (see Fig. 3).

Hereinafter, looking at the characteristic configuration of the pressure wheel according to the present invention, a female screw part (alternatively) alternately with the bolt mounting part 5 on the front surface of the pressure wheel (1) in which a plurality of bolt mounting parts (5) on which a joint bolt (not shown) is mounted is formed. 10), but the female screw portion 10 may be attached to a separate nut, but preferably formed integrally with the pressure wheel (1) as shown in FIG.

And it is formed to protrude a plurality of mounting base 20 to the upper side of the female screw portion 10, the upper side of the mounting base 20 is formed to have an inclined surface 25 inclined downward toward the center of the tubular body (P). The guide protrusions 26 are formed on both side surfaces of the inclined surface 25. At this time, the female screw portion 10 is in communication with the center of the inclined surface 25 of the mounting table 20 by forming a recess groove 27 in the center of the inclined surface 25 so that the female screw portion 10 communicates. , It is preferable to allow the support piece 45 to be described later to be located in the digging groove 27 (see FIG. 9).

In addition, the guide protrusions 26 may be formed in a double tail type or a tee cut type as shown in the drawing, and the present invention is not limited to the shape of the guide protrusions 26.

And to form a plurality of spikes 30 to be mounted on the mounting table 20 to operate along the inclined surface 25, the upper side of the spike 30 forms a slit 35 that is open to the outside, the spike ( The rear surface of the 30 is formed to be inclined to correspond to the inclined surface 25 of the mounting table 20, the guide groove 36 in which the guide projections 26 formed in the mounting table 20 is recessed in the side of the spike 30 To form.

At this time, the slit 35 formed in the spike 30 is open to the outside as described above, so that the mounting of the bolt 40 to be described later is easy, even if the slit 35 is not opened out as described above, the spike ( 31 may be formed in a long hole so that the bolt 40 does not interfere with the operation of the 31, the guide groove 36 is formed to correspond to the shape of the guide protrusion 26 of the mounting table 20, It is preferable to form a plurality of teeth 31 at the tip of the spike 30 so that the spike 30 is firmly compressed to the tube P.

And the bolt 30 is mounted to the slit 35 of the spike 30, the bolt head 41 of the upper end of the bolt 40 is in contact with the upper side of the slit 35, the bottom of the bolt 40 The male screw portion 42 is fastened to the female screw portion 10 formed on the pressure ring 1 so that the spike 30 is operated downward along the inclined surface 25 when the bolt 40 is fastened.

On the other hand, by further forming a support piece 45 in contact with the bottom surface of the slit 35 below the bolt head 41 of the bolt 40, the spike 30 is additionally interlocked when dismantling the bolt 40 It is preferable to operate upward.

Hereinafter, referring to the action of the tube connecting pressure ring 1 according to the present invention, as first known, the sealing ring is seated in the socket of one side of the pipe body, and the front end portion of the other side pipe body P equipped with the pressure wheel 1 is After inserting into the socket, inserting a joint bolt (not shown) that extends over the end of the socket into the bolt mounting portion 5 of the pressure ring 1 to tighten the joint nut (not shown), the inner ring portion of the pressure ring 1 6 maintains the watertight between the two tubes while pressing the sealing ring, the same action is the same as the conventional pressure wheel shown in FIG.

And when the bolt 40 fastened to the female screw part 10 of the pressure ring 1 is tightened, as the bolt 40 lowers and the bolt head 41 presses the spike 30, the spike 30 mounts Guided to the inclined surface 25 of the (20) and moves down to the center side of the tube (P) at the same time, at this time the tooth 31 of the tip of the spike 30 is pressed into the tube (P) and the tube (P) firmly As a result, it is possible not only to strongly fix both sides of the tube body, but also to push the tube body in the connecting direction to maintain a more stable water tightness.

On the other hand, if you want to dismantle the connected pipe body, loosening the bolt 40 in the reverse direction, the pressure of the spike 30 pressed on the pipe body (P) is released so that both sides of the pipe body can be separated, in this case the bolt 40 When the support piece 45 is further formed in the bolt 40 and the spike 30 is interlocked by the support piece 45, the spike 30 rises at the same time as the bolt 40 is released, and thus more easily. The tube can be separated.

Accordingly, the pressure wheel 1 according to the present invention has a concise structure in which the spike 30 is directly driven by a bolt 40 operated by an operator. Otherwise, there is no risk of failure and its construction is also acceptable.

In addition, the combination of the screw and the inclined surface can be strongly fixed to both sides of the pipe, of course, since the operating direction of the spike 30 also works in the direction of the pipe as well as the center of the pipe body of the watertight between the two ( It can keep water tighter and more stable.

Claims

In the pressure ring (1) for pipe connection formed with a plurality of bolt mounting portion (5) on which the joint bolt is mounted;

Forming a plurality of female screw portions 10 on the front surface of the pressing wheel 1;

A plurality of mounting brackets 20 are formed to protrude to the upper side of the female screw portion 10, and the mounting brackets 20 are inclined to the center of the tubular body P on the upper side, and the inclined surface is formed. A guide protrusion 26 is formed at 25;

Forming a recess groove 27 in the center of the inclined surface 25 so that the female screw portion 10 communicates;

Formed on the mounting table 20 to form a plurality of spikes 30 to operate along the inclined surface 25, the spike 30 formed a plurality of teeth 31 at the tip and to the outside on one side of the top An open slit (35) is formed, while a guide groove (36) into which the guide protrusion (26) is recessed is formed in the spike (30);

A bolt 40 is mounted on the slit 35 of the spike 30, and the bolt head 41 on the top of the bolt 40 is in contact with the upper side of the slit 35 and at the bottom of the bolt 40. The male screw portion 42 is fastened to the female screw portion 10 formed on the pressure ring 1;

The lower side of the bolt head 41 is formed with a support piece 45 in contact with the bottom surface of the slit 35 to the spike connection for the tubular connection, characterized in that the spike 30 when the bolt 40 is disengaged.