KR100738599B1 - Pipe's connecting structure preventing a water leakage - Google Patents

Abstract

A water supply pipe connecting structure is provided to prevent the leakage of water on a joint of water supply pipes effectively by sealing up a joint of water supply pipes effectively and connecting water supply pipes tightly against water pressure. The water supply pipe connecting structure for preventing the water leakage of a joint comprises primary and secondary water supply pipes(100,200) provided with flanges(120,220) having many fastening holes(121,221) to couple adjacent water supply pipes by fasteners, a packing(500) inserted to a fitting hole formed between an extension pipe(110) and the flange of the primary water supply pipe and made of elastic synthetic resins to be adhered closely to the outer circumferential surface of the extension pipe, a counterflow prevention pipe(400) connected to the end of the extension pipe longitudinally and provided with many cutting portions(410) to occur partial flexural deformation, a moving pipe(300) inserted to the inside of the extension pipe to move longitudinally in the primary water supply pipe along the flow of service water and provided with a fixing projection(320) projected outward to limit the moving range of the moving pipe and a primary incline(310) engaged with a projection(111) of the extension pipe to apply force to the extension pipe radially, thereby to make the packing engaged with the inside of the primary and secondary water supply pipes tightly.

Description

Pipe's connecting structure preventing a water leakage}

1 is an exploded perspective view illustrating a joint structure of a water pipe according to the present invention;

2 is a sectional view showing a joint of a water pipe according to the present invention;

3 is a cross-sectional view showing the operation of the moving tube when the constant flows in the rectifying pipe according to the present invention,

4 is a cross-sectional view showing the state when the constant flow in the reverse flow in the water pipe according to the present invention.

-Explanation of terms for main parts of attached drawings-

100; First water pipe 110; Extension

111; Protrusions 120, 220; flange

130; Fittings 140, 240; Extension

150; Groove 200; Second water pipe

300; Moving tube 310; First slope

320; Fixed jaw 330; Second slope

400; Countercurrent arrestor 410; Incision

500; packing

The present invention relates to a connection structure of the water pipe to prevent the leakage of the joint.

Water pipes underground or above the ground are divided into water pipes and sewer pipes. Here, the water pipe is a passage of purified and disinfected high water supply, and a large pressure must be applied to supply the water to a remotely located consumer. Therefore, the water pipe must have sufficient rigidity to support the pressure.

For this purpose, the water pipe is made of steel and the diameter is made as large as possible to minimize the amount of water pressure per unit area of the water pipe. Therefore, the water pressure received by the water pipe can be reduced, and the material of the water pipe itself performs the task as a water pipe without major problems.

By the way, since such a water pipe cannot be integrated from a water source to a consumer, a plurality of water pipes are piped afterwards. Thus, a joint is formed between the water pipe and the water pipe. However, a gap may be generated in such a joint and a constant flowing at high water pressure may leak through the gap.

Of course, this leak is compensated to some extent by packing it with synthetic resin covering the boundary of the joint where the gap occurs or by processing the shape so that the connection between the water pipes is closely connected to each other, but it does not completely block the leak. As the joint between the water pipe and the water pipe opens, the gap becomes large, and it does not completely eliminate the occurrence of leakage caused by the gap formed in the joint.

Accordingly, the present invention has been invented to solve the above problems, to efficiently fill the gap formed in the joint portion of the water pipe to minimize the occurrence of leakage, and as the water pressure increases the tight connection between the water pipe and the water pipe It is a technical problem to provide a connection structure of a water pipe that prevents leakage of joints to achieve effective leakage prevention.

The present invention to achieve the above technical problem,

An open end of the tubular shape, the end is an extension of the expansion of the inner diameter and has a flange having a plurality of fastening holes, and has an extension tube extending in the longitudinal direction, the space between the inner surface of the extension and the outer surface of the extension tube Forming a fitting hole, the inner surface of the extension tube protruding toward the end thereof to make an inclination, and forming a protrusion having an inclined descending to the end and having a groove formed on the inner surface thereof;

One end is fixed to the end of the tubular tube, the other end has a plurality of incisions cut in the longitudinal direction, the backflow stop pipe made of an elastic material that can be bent;

Once in the tubular shape is fixed to the outer circumferential surface engaging the groove and inserted into the extension tube so as to be movable within the range of the groove, once the inner circumference is inclined to narrow the inner diameter toward the inner side to form a second slope, An outer circumferential surface of the other end comprises: a movement pipe forming a first slope inclined to engage with the protrusion;

A tubular shape of which both ends are open, the end portion of which is extended to the inner diameter is an extension portion is inserted into the extension tube and has a flange having a plurality of fastening holes, while engaging with the flange of the first water pipe is fastened via a fastening member Two-water pipe; And

An packing of an elastic material inserted between the extension pipe including the fitting hole and an inner surface of the expansion part in the expansion part of the first and second water pipes fastened to each other;

Water pipe connection structure to prevent the leakage of the joint characterized in that consisting of.

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

1 is an exploded perspective view illustrating a joint structure of a water pipe according to the present invention, and FIG. 2 is a cross-sectional view illustrating a joint part of a water pipe according to the present invention.

The water pipe according to the present invention includes flanges 120 and 220 at ends connected to other water pipes adjacent to the water pipes, and a plurality of fastening holes 121 and 221 are formed in the flanges 120 and 220, so that the water pipes are fastened. The adjacent water pipes 100 and 200 may be firmly fixed to each other through the fastening member C passing through the balls 121 and 221.

The water pipe (100, 200) is a pair of the first water pipe 100 and the second water pipe 200, each other, the first water pipe 100 is an extension pipe 110 protruding in the longitudinal direction It includes more.

As shown in the drawing, the extension pipe 110 is integrally formed with the first water pipe 100 and is inserted into the second water pipe 200 to be engaged with the second water pipe 200.

The inner side of the extension tube 110 has a protrusion 111 having a shape in which the inner diameter is gradually narrowed toward the end and rapidly expands at the end. In other words, the protrusion 111 formed on the inner surface of the extension pipe 110 is gradually inclined toward the end while the inclination is sharp.

Subsequently, a fitting hole 130 is formed between the extension pipe 110 and the flange 120. One end of the packing 500 is fitted into the fitting hole 130. The packing 500 is a synthetic resin having elasticity close to the outer peripheral surface of the extension tube 110 to wrap it.

The water pipe preferably has a constant inner diameter at all times regardless of its position. In other words, the bottleneck does not occur. Accordingly, the water pipe according to the present invention has a diameter of the end of the first and second water pipes 100 and 200 such that the bottleneck is minimized by the configuration of the packing 500 and the extension pipe 110 inserted into the joint. It is desirable to have these enlarged extensions 140, 240.

The expansion parts 140 and 240 extend beyond the average inner diameter of the first and second water pipes 100 and 200, and in the case of the first water pipe 100, the fitting holes 130 are extended by the expansion part 140. To secure space. Of course, in the case of the first water pipe 100 there is no expansion for the passage through which the constant flows due to the extension pipe 110. On the other hand, the end of the extension pipe 110 is to be in contact with the boundary of the expansion 240 of the second water pipe 200, by the extension pipe 110 at the time of interconnection of the first and second water pipes (100, 200) The diameter of the passage through which the constant flows is maintained substantially constant regardless of the presence or absence of the extension parts 140 and 240, and the outer surface and the extension parts 140 and 240 of the extension pipe 110 around the fitting hole 130. Spaced spaces are formed between the inner surfaces of the surfaces.

At the end of the extension pipe 110, the backflow stop pipe 400 is connected in the longitudinal direction. The extension pipe 110 is made of a metal material of the same material as the water pipe, so that bending does not easily occur. On the other hand, the backflow stopper 400 is made of a synthetic resin material having elasticity, and is cut along the circumferential surface of the distal end so that partial bending occurs and forms an incision 410.

The moving tube 300 is inserted into the extension tube 110. The movable pipe 300 is movable in the longitudinal direction in accordance with the flow of the constant in the first constant pipe 100, in order to limit the movement range has a fixed jaw 320 protruding outward on one side outer peripheral surface, the movable pipe ( An inner surface of the first water pipe 100 to which the 300 abuts has a groove 150 into which the fixing jaw 320 is movably engaged. Therefore, within the range of the groove 150, the moving pipe 300 moves along the longitudinal direction of the first water pipe 100.

Subsequently, the other outer surface of the moving tube 300 has a first slope 310 inclined to correspond to the extension tube 110 in which the inner surface is inclined.

As described above, the inner surface of the extension tube 110 is projected to narrow the inner diameter toward the end to form a protrusion 111 having an inclined surface. Therefore, while the outer surface of the moving tube 300 which is in contact with the inclined surface also forms the first slope 310, when the moving tube 300 is pushed and moved by a constant water pressure, the force 111 is projected through the first slope 310. Is delivered to the extension tube 110 to receive. The end of the extension tube 110 is radially applied to the packing 500 is inserted into the fitting hole 130, the packing 500 is the joint between the first and second water pipes (100, 200) The boundary is tightly sealed and sealed.

Of course, the greater the constant pressure, the greater the horizontal movement force of the moving pipe 300, in proportion to the pressure of the extension pipe 110 for pressing the packing 500, the first, the second constant pipe (100, 200) The packing 500 effectively fills and seals the gap enlarged by the gaping of the packing 500.

The moving tube 300 forms a second slope 330 on one inner surface of the moving tube 300 opposite to the first slope 310. The second slope 330 faces constants so as to minimize vortices of constants that may occur due to sudden protrusion, while horizontal forces due to constant pressure are transmitted to the moving tube 300. Therefore, the movable pipe 300 is able to receive a sufficient force from the flow of constant to apply a force to the protrusion 111.

Figure 3 is a cross-sectional view showing the operation of the moving tube when the constant flow in the rectification in the water pipe according to the present invention, will be described with reference to this.

As described above, when the constant flowing through the first and second constant pipes 100 and 200 is rectified, the moving pipe 300 is caused by the collision of the constant and the friction between the second slope 330 and the constant. Move. Of course, the first slope 310 is engaged with the protruding portion 111 of the extension pipe 110 to apply a radial force of the extension pipe 110, which causes the packing 500 of the first and second water supply pipes (100, 200) It closely engages with the inside.

Figure 4 is a cross-sectional view showing a state when the constant flow in the reverse flow in the water pipe according to the present invention, will be described with reference to this.

On the other hand, the water pipe according to the present invention further includes a configuration for preventing reverse flow of the constant. In such a configuration, there is a backflow stopping pipe 400, and the moving pipe 300 also has a function of preventing backflow of a constant.

The backflow stop tube 400 is fixed to the end of the extension pipe 110, and is made of an elastic material so that when the constant flows back, it is bent toward the center of the water pipe with its force. At this time, the backflow stop pipe 400 is a plurality of cutouts 410 is formed so that the end can be individually bent, so that the backflow stop pipe 400 is easily squeezed by the force of the constant flow back.

This deflection narrows the space in the water conduit, obstructing the flow of the constant, and eventually inhibits the reverse flow of the constant.

On the other hand, when the constant flow back flows through the backflow stop pipe 400 and the flow force is transferred to the moving pipe 300, the moving pipe 300 moves along the flow of the constant back flow, the fixed jaw 320 is the groove 150 When moving to the end of the moving tube 300 stops further movement.

In this case, since the first slope 310 of the moving tube 300 forms a space between the inner surface of the extension tube 110, the first slope 310 provides resistance to a constant backflow. Therefore, since the portion of the first slope 310 of the movable pipe 300 is slightly curved to narrow the space where the constant flows, the reverse flow stop pipe 400 together with the constant backflow is prevented.

According to the present invention as described above, the gap formed in the joint portion of the water supply pipe tightly closes the greater the hydraulic power and pressure of the constant to minimize the possibility of leakage, and also prevent the backflow to induce a smooth flow of constant It can be effective.

Claims (1)

An open end of the tubular shape, the end is an extension of the expansion of the inner diameter and has a flange having a plurality of fastening holes, and has an extension tube extending in the longitudinal direction, the space between the inner surface of the extension and the outer surface of the extension tube Forming a fitting hole, the inner surface of the extension tube protruding toward the end thereof to make an inclination, and forming a protrusion having an inclined descending to the end and having a groove formed on the inner surface thereof; One end is fixed to the end of the tubular tube, the other end has a plurality of incisions cut in the longitudinal direction, the backflow stop pipe made of an elastic material that can be bent; Once in the tubular shape is fixed to the outer circumferential surface engaging the groove and inserted into the extension tube so as to be movable within the range of the groove, once the inner circumference is inclined to narrow the inner diameter toward the inner side to form a second slope, An outer circumferential surface of the other end comprises: a movement pipe forming a first slope inclined to engage with the protrusion; A tubular shape of which both ends are open, the end portion of which is extended to the inner diameter is an extension portion is inserted into the extension tube and has a flange having a plurality of fastening holes, while engaging with the flange of the first water pipe is fastened via a fastening member Two-water pipe; And An packing of an elastic material inserted between the extension pipe including the fitting hole and an inner surface of the expansion part in the expansion part of the first and second water pipes fastened to each other; Water pipe connection structure to prevent the leakage of the joint characterized in that consisting of.

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