KR102341130B1 - double piping structure for washbasin - Google Patents

Abstract

Disclosed is a double piping structure for a washbasin. The double piping structure for a washbasin of the present invention is for draining by being connected through a washbasin and a trap, comprising: an outer pipe installed to be embedded in a concrete structure wall; an inner pipe inserted into the outer pipe; and a trap coupling part for coupling one end of the inner pipe and the trap with each other and coupling one end of the inner pipe and the outer pipe with each other, wherein the other ends of the outer pipe and the inner pipe are configured to be engaged by contacting the end with a locking protrusion formed on the inner circumferential surface of a through sleeve installed on the bottom between floors of the bathroom, so that further downward movement is restricted. According to the present invention, by adopting the double piping structure of the outer pipe and the inner pipe inserted inside the outer appearance, the building construction method for embedding the piping for the washbasin inside the concrete structure wall.

Description

Double piping structure for washbasin

The present invention relates to a double pipe structure for a washbasin that is embedded in a concrete structure wall.

In general, bathrooms in high-rise buildings such as apartments or multi-family houses are frequently remodeled due to aging, clogging, and water leakage of the plumbing (corresponding to the ceiling of the downstairs household) buried in the slab of the floor. Since it is buried in concrete that is being used, the renovation work is difficult and takes a long time.

Conventionally, in installing the drain pipe for the washbasin, in order to bury the drain pipe for the washbasin in the wall, the drain pipe for the washbasin is fixed and installed on the outside of the wall of the concrete structure to be exposed, and bricks etc. to surround the drain pipe for the washbasin are covered and finished. applied.

The drain pipe for the washbasin is made of a single pipe, and according to the Building Construction Act, when the drain pipe for the washbasin is installed inside the wall of the concrete structure and then concrete is poured to fix the drain pipe for the washbasin, the building construction law is not satisfied. I have a big problem that I can't.

Korean Utility Model Patent Publication No. 20-0348102 (April 28, 2004 Announcement)

The present invention has been devised to solve the above-mentioned conventional problems, and to provide a double pipe structure for a washbasin that provides a structure that can be installed to be embedded in a concrete structure wall forming an interior space of a bathroom to satisfy the building construction method The purpose.

In addition, the present invention can improve the bonding property by providing a structure that can easily and quickly combine the main parts in a set position, and turbulence or reverse flow of water discharged from the inside according to the induction of in-situ bonding Another object of the present invention is to provide a double pipe structure for a washbasin that can reduce the increase in drainage noise by preventing it from happening.

According to one aspect of the present invention, it is connected through a washbasin and a trap for draining, the exterior installed to be embedded in a concrete structure wall; an inner tube inserted into the exterior; and a trap coupling part for coupling one end of the inner tube and the trap with each other and coupling the inner tube and one end of the outer tube with each other, wherein the other end of the outer tube and the inner tube is an inner circumferential surface of a through sleeve installed on an interfloor floor of a bathroom. There is provided a double pipe structure for a washbasin in which further downward movement is restricted by making the end contact with the locking protrusion formed in the to be hooked.

According to another aspect of the present invention, it is connected to the washbasin and the trap to drain, the exterior installed to be embedded in the concrete structure wall; an inner tube inserted into the exterior; a trap coupling unit for coupling one end of the inner tube and the trap with each other and coupling one end of the inner tube and the outer tube with each other; and a penetrating sleeve installed on the interfloor floor of the bathroom and having a shape penetrating up and down and having a locking jaw formed on its inner circumferential surface, and the other ends of the exterior and inner tube are caught by contacting the ends with the locking jaws of the through sleeve. There is provided a double pipe structure for a washbasin that is made possible so that further downward movement is limited.

The exterior may be made of a hard material, and the inner tube may include a flexible material that is softer than the exterior.

The engaging protrusion of the through sleeve is formed in a circular ring shape to form a sleeve through hole on the inside, and the inner tube is a flexible pipe made of a flexible material that is softer than the outer tube; and coupled to the end of the flexible pipe to induce the insertion movement of the flexible pipe so that the end of the flexible pipe is positioned at a position corresponding to the center of the sleeve through hole when the inner pipe is inserted into the through sleeve, It may include a central insertion inducing part that is engageable by the end contacting the chin.

The central insertion guide unit, an insertion guide body fixedly coupled to the end of the flexible pipe through forced press-fitting or bonding using an adhesive; and a locking protrusion that protrudes from the outer surface of the insertion guide body so as to be hooked on the locking jaw, and has an inclined surface at a contact portion with the locking jaw.

The through sleeve may include a sleeve body in which the protruding protrusion is formed so as to form the sleeve through hole on an inner circumferential surface of the through sleeve; And it is coupled to the upper opening of the sleeve body through forced press-fitting, and is formed in a shape that penetrates up and down so that the outer surface is inserted therethrough, and an inner peripheral surface contactable with the outer surface of the outer surface is provided with a tapered surface so as to be inclined downwardly toward the sleeve body. It may include a sleeve flange that is

The exterior may be inserted through the sleeve flange through forced press-fitting, and the through sleeve may be made of a material having relatively softness compared to the exterior.

The locking jaw may be an inclined locking jaw that is continuously provided along the circumferential direction of the inner circumferential surface of the sleeve body and has an inclined surface of the locking jaw that is inclined downwardly toward the lower side of the sleeve body.

The exterior may be hooked on the upper region of the inclined locking jaw, and the inner tube may be caught in the lower region of the inclined locking jaw by moving the central insertion guide portion downward along the inclined surface of the locking jaw.

According to the double pipe structure for a washbasin of the present invention described above, by adopting the double pipe structure of the exterior and the inner pipe inserted inside the exterior, the building construction method for embedding the pipe for the washbasin inside the concrete structure wall can be satisfied. .

In addition, it is possible to improve the bondability by providing a structure that can easily and quickly couple the inner tube to the in-place set with respect to the through-sleeve, and to prevent the occurrence of turbulence or reverse flow of water discharged from the inside according to induction of in-situ engagement. By preventing the occurrence of an increase in drainage noise, it can be certainly reduced.

In addition, by providing the central insertion guide portion at the end of the flexible pipe, it is possible to enable the operator to quickly and easily in-situ coupling of the flexible pipe to the sleeve through hole of the through sleeve in the field.

In addition, by providing a locking jaw having an inclined surface of the locking jaw on the inner circumferential surface of the sleeve body, when an operator inserts a flexible pipe into the through sleeve, the end of the locking protrusion can be more easily inserted into the sleeve through hole. It is possible to restrict downward movement by being caught on the stumbling block.

1 is a cross-sectional view showing a state in which a double pipe structure for a washbasin according to an embodiment of the present invention is constructed;
2 is a view showing a coupling state of a flexible pipe and a central insertion guide unit in a double pipe structure for a washbasin according to an embodiment of the present invention;
3 is a cross-sectional view showing a state in which an outer tube and an inner tube are inserted into the through sleeve in the double pipe structure for a washbasin according to an embodiment of the present invention;
4 is a view showing the coupling state of the sleeve flange and the exterior in the double pipe structure for a washbasin according to an embodiment of the present invention;
FIG. 5 is a diagram illustrating a modified example of FIG. 3 .

Hereinafter, embodiments of the present invention will be described in more detail with reference to the accompanying drawings. However, the present invention is not limited to the embodiments disclosed below, but will be implemented in a variety of different forms, only these embodiments allow the disclosure of the present invention to be complete, and the scope of the invention to those of ordinary skill in the art completely It is provided to inform you. In the drawings, like reference numerals refer to like elements.

The double pipe structure for a washbasin according to a preferred embodiment of the present invention is installed to be embedded in the wall of the concrete structure forming the interior space of the bathroom, and is fixed at a preset position before pouring the concrete to form the wall of the concrete structure and then poured It maintains the installed state to be stably buried inside the wall of the concrete structure by the concrete.

The double pipe structure for a washbasin according to an embodiment of the present invention provides a structure that can easily and quickly combine the main components in a set position to improve the bondability, and according to the induction of in-place coupling, the double pipe structure inside the double pipe structure By preventing the occurrence of turbulence or backflow of the discharged water, the increase in drainage noise can be significantly reduced.

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

As shown in FIG. 1, the double pipe structure for a washbasin 100 (hereinafter, 'double pipe structure') according to an embodiment of the present invention is connected through a washbasin 10 and a trap 20 to drain water from the washbasin. In order to do so, it includes an outer tube 110 and an inner tube 120 and a trap coupling unit 130 having a double pipe structure. In addition, in the double pipe structure according to an embodiment of the present invention, a through sleeve 140 may be further added to the above-described configuration.

First, as shown in FIG. 1 , the exterior 110 is installed to be embedded in the concrete structure wall 30 . In other words, without a separate masonry work, the exterior 110 is exposed to the outside by the side formwork (not shown) for forming the concrete structural wall 30 during the construction process, in a state where the external exposure is limited, the concrete is used with the side formwork (not shown). By pouring, it is possible to install embedded in the concrete structure wall (30).

In an embodiment of the present invention, the exterior 110 is preferably made of a hard material having a certain rigidity or more to prevent shape deformation from occurring due to the concrete being poured, and may be made of a synthetic resin material such as PVC, ABS, for example. have.

The exterior 110 may include an exterior body 111 in the form of a straight tube having a length of at least a certain length, and an elbow pipe 112 connected to the upper end of the exterior body 111, and the elbow pipe 112 includes the following. The trap coupling unit 130 is coupled.

Next, as shown in FIG. 1 , the inner tube 120 is inserted into the outer tube 110 to constitute a double pipe together with the outer tube 110 and is substantially communicated with the trap 20 to provide a drainage path, the exterior (110) It may include a flexible material softer than the exterior (110) for easy insertion into the inside.

Next, the trap coupling unit 130 combines one end of the inner tube 120 and the trap 20 with each other and one end of the inner tube 120 and the outer tube 110 with each other, and a rubber ring for preventing water leakage is formed. Including the known bonding structure can be applied.

Next, as shown in FIG. 1, the through sleeve 140 is installed on the interfloor floor 40 of the bathroom, and the exterior 110 and the inner tube 120 are insertable and have a shape that penetrates up and down to enable drainage. and a locking jaw 141 is formed on its inner circumferential surface. An L-shaped drain pipe 142 is connected to the lower side of the through sleeve 140 for pipe connection to the drain duct.

That is, the outer tube 110 and the inner tube 120 are inserted into the through sleeve 140 , and the drain pipe 142 is connected to the lower side of the through sleeve 140 , so that the trap 20 , the inner tube 120 , and the through sleeve 140 . The inner region of the sleeve 140 and the drain pipe 142 are in communication with each other so that drainage can be achieved.

On the other hand, it is necessary to limit the insertion depth of the inner tube 120 into the through sleeve 140 for a smooth drainage as described above. If it is not possible to limit the insertion depth of the inner tube 120 , the lower end of the inner tube 120 is inserted up to the drain pipe 142 , so that smooth drainage is not achieved and the discharged water strongly hardens the inner wall of the drain pipe 142 . Drainage noise is not only greatly generated by hitting, but also the drainage noise is further increased due to the generation of turbulence.

In order to prevent such a problem from occurring, in the embodiment of the present invention, as shown in FIGS. 1 and 3 , the other ends of the outer tube 110 and the inner tube 120 are engaging protrusions formed on the inner circumferential surface of the through sleeve 140 ( 141) is made so that the end is in contact with the hook, so that further downward movement is limited.

As shown in FIG. 3 , the engaging protrusion 141 of the through sleeve 140 is formed in a circular ring shape to form a sleeve through hole 143 on the inside, and for example, the upper surface of the engaging protrusion 141 is flat. provided in state.

In the embodiment of the present invention, as shown in FIG. 2 , the inner tube 120 includes a flexible pipe 121 and a central insertion guide portion 122 .

The flexible pipe 121 is made of a flexible material that is softer than the exterior 110 and can be bent freely, and a structure for coupling with the trap coupling unit 130 is provided at one end of the flexible pipe 121 .

The central insertion guide part 122 is coupled to the other end of the flexible pipe 121, and when the inner tube 120 is inserted into the inside of the through sleeve 140, the end is substantially in contact with the locking jaw 141 to be hooked. The movement of the flexible pipe 121 is restricted so that it does not move further downward.

Meanwhile, when the flexible pipe 121 is inserted into the exterior 110 , the state of the other end of the flexible pipe 121 is difficult for the operator to visually check due to the exterior 110 . In such a situation where there is a difficulty in the installation work, if the flexible pipe 121 does not communicate with the sleeve through-hole 143 in an approximately straight line, a part of the water discharged to the other end of the flexible pipe 121 is the through-sleeve 140 inside. As well as a large amount of drainage noise is generated while hitting the , a reverse flow into the exterior 110, etc. may occur depending on the amount of drainage.

The present invention is to solve this part, as shown in FIGS. 2 and 3, the central insertion guide part 122, the end of the flexible pipe 121 when the inner tube 120 is inserted into the through sleeve 140. is positioned at a position corresponding to the center of the sleeve through-hole 143, that is, the other end of the flexible pipe 121 communicates with the sleeve through-hole 143 in an approximately straight line to induce the insertion movement of the flexible pipe 121 . It is preferable that the central insertion guide portion 122 is made of a hard material having a rigidity greater than or equal to that of the flexible pipe 121 .

Specifically, as shown in FIGS. 2 and 3 , the central insertion guide unit 122 includes an insertion guide body 123 and a locking protrusion 124 .

The insertion guide body 123 is fixedly coupled to the end of the flexible pipe 121 through forced press-fitting or bonding using an adhesive. ) to have an outer diameter smaller than the inner diameter of the

In addition, the locking protrusion 124 protrudes from the outer surface of the insertion guide body 123 so as to be hooked on the locking jaw 141 of the through sleeve 140, and the inclined surface 125 is in contact with the locking jaw 141. will be prepared

The locking protrusion 124 protrudes continuously along the circumferential direction on the outer surface of the longitudinal central portion of the insertion guide body 123, and inclined surfaces 125 on both sides so that the operator does not consider the coupling direction to the flexible pipe 121. this will be provided Here, the outer diameter of the locking protrusion 124 has a numerical value larger than the inner diameter of the sleeve through hole 143, and accordingly, the locking protrusion 124 is caught by the locking jaw 141 and further downward movement is limited. The inclined surface 125 is formed in a downwardly inclined shape toward the lower side of the through sleeve 140 .

On the other hand, in the embodiment of the present invention, as shown in FIGS. 2 and 3 , the inclined surface 125 is provided on the side surface of the locking protrusion 124 in contact with the locking protrusion 141 , so that the operator can use the flexible pipe 121 ) when inserting the through sleeve 140 into the inside, the end of the locking protrusion 124 can be more easily inserted into the sleeve through hole 143, and the inclined surface 125 is caught on the locking protrusion 141. Movement can be restricted.

In other words, when the flexible pipe 121 is pressed and inserted into the through sleeve 140 , the inclined surface 125 may come into contact with the inner edge of the locking jaw 141 , and thereafter, when the pressing force is maintained, it is inclined downward. The locking protrusion 124 can be easily moved to a position corresponding to the central region of the sleeve through hole 143 by the contact between the inclined surface 125 and the edge of the locking jaw.

In more detail with respect to the through sleeve, as shown in FIGS. 3 and 4 , the through sleeve 140 includes a sleeve body 144 and a sleeve flange 145 .

The sleeve body 144 is embedded in the inter-floor floor concrete structure of the bathroom, and has a shape penetrating up and down, and a locking protrusion 141 is protruded to form a sleeve through hole 143 on the inner circumferential surface. Here, the upper surface of the locking protrusion 141 is made in a flat state as described above, and is continuously provided along the circumferential direction of the inner circumferential surface of the sleeve body 144 .

The sleeve flange 145 is coupled to the upper opening of the sleeve body 144 through forced press-fitting, and has a top and bottom penetration shape in which the flange through hole 146 is provided so that the exterior 110 is inserted therethrough.

In the embodiment of the present invention, as shown in FIG. 4 , a tapered surface 147 is provided on the inner peripheral surface of the sleeve flange 145 contactable with the outer surface of the outer surface 110 so as to be inclined downwardly toward the sleeve body 144 . .

Here, the exterior 110 is inserted through the sleeve flange 145 through forcible press-fitting, and in the inserted state, the lower end of the exterior 110 is in contact with the upper surface of the locking jaw 141 and has a locked state. In addition, the through sleeve 140 is made of a material having a relatively softer compared to the exterior 110, for example, may be made of a PP synthetic resin material.

The present invention, in particular, as the sleeve flange 145 is made of a speech material compared to the exterior 110, as shown in FIG. 4, when inserting the exterior 110 to penetrate the sleeve flange 145, the exterior (110) ) of the outer surface presses the tapered surface 147 to the outside to expand the flange through hole 146 to the outside more than a certain amount by the shape deformation of the tapered surface 147, and the entire tapered surface 147 in a state where the insertion is completed can improve the watertightness by maintaining a contact state in close contact with the outer surface of the exterior (110).

Therefore, even if a situation occurs where the flexible pipe 121 is not coupled to the correct position as described above on the inside of the through sleeve 140 by any chance, the reverse flow of water into the gap between the exterior 110 and the sleeve flange 145 is prevented. Not only can it be prevented, but also it is possible to prevent the odor from spreading into the bathroom interior space through the gap.

Hereinafter, a modified example of the through sleeve 140 will be described with reference to FIG. 5 .

As shown in FIG. 5 , the locking jaw 160 is not made in a flat state as described above, but has an inclined locking jaw inclined surface 161 that is inclined downwardly toward the lower side of the sleeve body 144 . made by the chin

Here, as shown in FIGS. 2 and 5 , the width W2 of the inclined surface 161 of the locking jaw is provided to be greater than the width W1 of the inclined surface 125 of the central insertion guide part 122 by a certain amount or more. Here, the width of the locking jaw inclined surface 161 means the protrusion length of the locking jaw protruding from the inner circumferential surface of the sleeve body 144, and the width of the inclined surface 125 of the central insertion guide part 122 is the insertion guide body 123. It means the protrusion length of the locking protrusion 124 protruding from the outer surface of the.

Therefore, when the operator inserts the flexible pipe 121 into the through sleeve 140 , the end of the locking protrusion 124 can be more easily inserted into the sleeve through hole 143 as well as the inclined surface 125 . ) may be caught on the locking jaw 160 having the locking jaw inclined surface 161 so that movement is restricted.

In other words, when the flexible pipe 121 is pressed and inserted into the through sleeve 140, the end of the locking protrusion 124 may contact the inclined surface 161 of the locking jaw of the locking jaw 160, and then When the pressing force is maintained, the locking protrusion 124 can be moved more easily to a position corresponding to the central region of the sleeve through hole 143 by the downward pressing of the downwardly inclined locking jaw inclined surface 161 and the locking protrusion 124 .

In this way, in a state in which the locking jaw inclined surface 161 is provided on the locking jaw 160, as shown in FIG. 5 , the exterior 110 is relatively caught in the upper region of the inclined locking jaw (same as the locking jaw). Possibly, the inner tube 120 is caught in the lower region of the central insertion guide part 122 moves downward along the engaging sloping surface 161 to the lower side of the inclined engaging sill (same as the engaging sill). Accordingly, by limiting the insertion depth of the outer tube 110 and the inner tube 120 into the through sleeve 140, noise generation and backflow generation when the insertion depth cannot be limited as described above can be solved.

In the foregoing, the present invention has been shown and described in connection with preferred embodiments for illustrating the principles of the present invention, but the present invention is not limited to the construction and operation as shown and described as such. Rather, it will be apparent to those skilled in the art that many changes and modifications can be made to the present invention without departing from the spirit and scope of the appended claims.

30: concrete structure wall 40: interfloor floor
100: double pipe structure for washbasin 110: exterior
120: inner tube 121: flexible tube
122: central insertion guide unit 123: insertion guide body
124: locking protrusion 130: trap coupling part
140: through sleeve 141: clasp
144: sleeve body 145: sleeve flange
147: tapered surface 160: catching jaw
161: stumbling block slope

Claims (9)

It is connected through a washbasin and a trap for draining,
The exterior is installed to be embedded in the concrete structure wall;
an inner tube inserted into the exterior; and
and a trap coupling unit for coupling one end of the inner tube and the trap to each other and coupling one end of the inner tube and one end of the outer tube to each other,
The other end of the outer tube and the inner tube is made to be engaged by contacting the end with a locking sill formed on the inner circumferential surface of the through sleeve installed on the floor between floors of the bathroom, so that further downward movement is restricted,
The locking jaw of the through sleeve is formed in a circular ring shape to form a sleeve through hole inside,
The interior is
a flexible pipe made of a flexible material that is softer than the exterior; and
It is coupled to the end of the flexible pipe to induce the insertion movement of the flexible pipe so that the end of the flexible pipe is positioned at a position corresponding to the center of the sleeve through hole when the inner pipe is inserted into the through sleeve, and the locking jaw A double pipe structure for a washbasin, characterized in that it includes a central insertion guide part that is in contact with the end and can be caught. It is connected through a washbasin and a trap for draining,
The exterior is installed to be embedded in the concrete structure wall;
an inner tube inserted into the exterior;
a trap coupling unit for coupling one end of the inner tube and the trap with each other and coupling one end of the inner tube and the outer tube with each other; and
It is installed on the floor between floors of the bathroom, and it has a shape that penetrates up and down and includes a penetrating sleeve having a locking jaw formed on its inner circumferential surface,
The other ends of the outer tube and inner tube are made to be engaged by contacting the ends with the locking jaws of the through sleeve, so that further downward movement is restricted,
The locking jaw of the through sleeve is formed in a circular ring shape to form a sleeve through hole inside,
The interior is
a flexible pipe made of a flexible material that is softer than the exterior; and
It is coupled to the end of the flexible pipe to induce the insertion movement of the flexible pipe so that the end of the flexible pipe is positioned at a position corresponding to the center of the sleeve through hole when the inner pipe is inserted into the through sleeve, and the locking jaw A double pipe structure for a washbasin, characterized in that it includes a central insertion guide part that is in contact with the end and can be caught. 3. The method of claim 1 or 2,
The exterior is made of a hard material, and the inner tube is a double pipe structure for a washbasin, characterized in that it comprises a flexible material softer than the exterior. delete 3. The method of claim 1 or 2,
The central insertion guide unit,
an insertion guide body fixedly coupled to the end of the flexible pipe through forced press-fitting or bonding using an adhesive; and
The double pipe structure for a washbasin, characterized in that it includes a locking protrusion that protrudes from the outer surface of the insertion guide body so as to be hooked on the locking jaw, and has an inclined surface at a contact portion with the locking jaw. 3. The method of claim 1 or 2,
The through sleeve,
a sleeve body having a shape penetrating up and down and protruding from the locking protrusion to form the sleeve through hole on an inner circumferential surface; and
It is coupled to the upper opening of the sleeve body through forced press-fitting, and has a shape that penetrates up and down so that the outer surface is inserted therethrough, and an inner peripheral surface contactable with the outer surface of the outer surface is provided with a tapered surface so as to be inclined downwardly toward the sleeve body Double pipe structure for washbasin, characterized in that it comprises a sleeve flange. 7. The method of claim 6,
The exterior is inserted through the sleeve flange through forced press-fitting,
The through sleeve is a double pipe structure for a washbasin, characterized in that it is made of a material having relatively softness compared to the external appearance. 7. The method of claim 6,
The stumbling block is
A double pipe structure for a washbasin, characterized in that it is an inclined locking jaw which is continuously provided along the circumferential direction of the inner circumferential surface of the sleeve body and has an inclined surface of the locking jaw that is inclined downwardly toward the lower side of the sleeve body. 9. The method of claim 8,
The exterior is capable of being caught in the upper region of the inclined locking jaw, and the inner tube is double for a washbasin, characterized in that the central insertion guide part moves downward along the inclined surface of the locking jaw to be caught in the lower region of the inclined locking jaw. plumbing structure.

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