KR102059569B1 - Drain pipe connector and drain traps including same - Google Patents

Abstract

The present invention relates to a drainpipe connector and a drain trap including the same. More specifically, according to the embodiments of the present invention, the drainpipe connector is to install a drainpipe provided in a dual pipe shape including an outer pipe and an inner pipe by connecting the drainpipe to the inside of the drain trap. The drainpipe connector includes: an inner pipe insertion unit into which the inner pipe is inserted; a connection unit extended in a radial direction from an end of the inner pipe insertion unit; a cover unit extended from the connection unit and covering at least a part of the circumferential surface of the drainpipe; an attached fixing cap attached to the inner pipe on the inner side of the cover unit and fixing the inner pipe; a support protrusion member protruding from the connection unit on the inner side of the cover unit and selectively fixed to the attached fixing cap; and a packing fixed to the inside of the attached fixing cap and attached to the inner pipe. Also, the drain trap includes a drain into which the drainpipe is inserted. The drainpipe connector can be installed at a position in which the inner pipe insertion unit is connected to the drain.

Description

Drain pipe connection and drain trap including the same {DRAIN PIPE CONNECTOR AND DRAIN TRAPS INCLUDING SAME}

The present invention relates to a drain pipe connector and a drain trap comprising the same.

In general, drain traps are used for drainage or vortex of balcony for accommodating drainage pipe and drain pipe at the same time. The drain trap is installed in the concrete mortar by closing the drain inlet of the small diameter inserted therein so that it can naturally discharge rainwater and wastewater.

Meanwhile, in the case of various equipments used in homes, for example, boilers, freezers, water purifiers, and air conditioners, waste water is generated during operation, and drain pipes for discharging the waste water to the outside are extended from the facility to be exposed to the outside. By being installed, waste water can be discharged to the outside.

However, in the case of a multi-family house such as an apartment, it is often impossible to discard the wastewater simply by exposing the drainage pipe to the outside as the number of floors increases. In this case, a route for discarding the wastewater through the drain pipe is required. As an alternative, a drain trap installed on the veranda may be used. In this case, the outlet of the drain pipe may be inserted into the drain hole formed in the drain trap so that the waste water is discharged to the outside through the drain trap.

However, when the drain pipe is connected to the drain hole formed in the drain trap, the drain hole formed in the drain trap has a much larger diameter than the drain pipe. Often very difficult. In addition, the waste water is very likely to flow back to the ceiling where the drain pipe is embedded.

In addition, when the life of the inner pipe of the drain pipe is worn out or damaged, replacement is required only by exposing the connection point by breaking all the bottom and wall of the point connecting the drain pipe and the drain trap. In this case, even if the replacement of the inner pipe of the drain pipe is completed, it is very difficult to recover the damaged floor and walls to the original state, and there is inconvenience of not being able to use the place during the replacement work, and the work time is also unnecessarily long. There is a problem of losing efficiency.

Embodiments of the present invention have been made to solve the above-described problems, and can be fixedly installed to the drain pipe to the drain trap, even when the replacement of the inner pipe of the drain pipe to crush the bottom and the wall is embedded It is an object of the present invention to provide a drain pipe connector and a drain trap including the same.

According to an aspect of the present invention, a drain pipe connector for connecting and installing the drain pipe provided in the form of a double pipe including an outer tube and the inner tube in the drain trap, the inner tube insert portion is inserted; A connecting portion extending radially from an end of the inner tube insert; A cover part extending from the connection part and covering at least a portion of a circumferential surface of the drain pipe; A close fixing cap that is in close contact with the inner tube inside the cover part and fixes the inner tube; A protruding member protruding from the connection part inside the cover part and selectively fixed to the close fixing cap; And fixed to the inside of the tight fixing cap, including a packing in close contact with the inner pipe, a drain pipe connector can be provided.

The apparatus may further include a locking member extending from the connection part to support the external appearance, wherein the locking member includes: a support part extending from one surface of the connection part; And it is provided at the end of the support portion, including a catch that is caught in the groove formed on the surface of the exterior, drain pipe connector can be provided.

In addition, a first inclined surface is formed on at least a portion of the inner circumferential surface of the support protrusion member, a second inclined surface is formed on at least a portion of the outer circumferential surface of the packing, and the packing is in close contact with the first inclined surface and the second inclined surface. A drain pipe connector may be provided that is pressed along the first inclined surface to maintain hermeticity.

In addition, the first screw thread formed on at least a portion of the inner peripheral surface of the close fixing cap; And a second screw thread formed on at least a portion of an outer circumferential surface of the support protruding member, the second screw thread being engageable with the first screw thread, wherein the first screw thread and the second screw thread are engaged with each other. A drain pipe connector may be provided in which the support protruding members are fixed to each other.

In addition, the close fixing cap may be in close contact with the support projecting member selectively, the close contact portion is provided with the first screw thread on the inner surface; A protrusion extending radially inward from at least a portion of an end of the contact portion; And a engaging protrusion formed from at least a portion of the inner side surface of the protrusion and engaging with the packing.

In addition, the packing may be provided with a drain pipe connector, including an engaging groove in which the engaging projection can be engaged.

The apparatus may further include a locking part provided between the close fixing cap and the cover part to fix the close fixing cap to the cover part, wherein the locking part comprises: a fixing member provided on an inner surface of the cover part; A locking piece connected to the fixing member to press the close fixing cap; And it is provided on the outer surface of the close fixing cap, comprising a click member for selectively holding the pressing state of the locking piece, drain pipe connector can be provided.

In addition, the fastening member is provided on the inner surface of the cover portion, the hole for screwing is formed; And a screw member for connecting and fastening the fastening member to the close fixing cap, wherein a fastening protrusion protrudes from an outer surface of the close fixing cap, and a hole for screw fastening is formed in the fastening protrusion, The drain member may be provided in which the fastening member and the screw member are connected and fixed by inserting the screw member into a hole formed in the fastening protrusion and a hole formed in the fastening member.

On the other hand, according to another aspect of the invention, the above-mentioned drain pipe connector; And a drain hole into which the drain pipe is inserted, wherein the drain pipe connector is disposed at a position such that the inner tube insert portion communicates with the drain hole.

According to the embodiments of the present invention, the drain pipe can be stably installed to the drain trap, and even if it is necessary to replace the inner pipe of the drain pipe drain pipe connector that does not need to break the floor and the wall and the like embedded with the drain pipe and the same There is an effect that it can provide a drain trap.

1 is an exploded perspective view showing a drain pipe connected to a drain trap by a drain pipe connector according to an embodiment of the present invention.
FIG. 2 is an exploded perspective view illustrating a state in which a drain pipe connector installed in the drain trap of FIG. 1 is separated;
3 is a cross-sectional view taken along AA of FIG. 2.
4 is a cross-sectional view taken along line BB of FIG. 3.
5 and 6 are state diagrams showing how the drain pipe is connected to the drain trap by the drain connector of FIG.
Figure 7 is a cross-sectional view showing a drain pipe connector installed in the drain trap according to another embodiment of the present invention.
8 is a cross-sectional view taken along line CC of FIG. 7.
Figure 9 is a cross-sectional view showing a drain pipe connector installed in the drain trap according to another embodiment of the present invention.
FIG. 10 is a sectional view taken along line DD of FIG. 9.

Hereinafter, specific embodiments for implementing the spirit of the present invention will be described in detail with reference to the accompanying drawings.

In addition, in describing the present invention, when it is determined that the detailed description of the related well-known configuration or function may obscure the gist of the present invention, the detailed description thereof will be omitted.

Also, when a component is said to be 'coupled', 'locked', or 'contacted' to another component, it may be directly coupled to, fixed to, or contacted with the other component, but there may be other components in between. Should be.

The terminology used herein is for the purpose of describing particular embodiments only and is not intended to be limiting of the invention. A singular expression includes a plural expression unless the context clearly indicates otherwise.

In addition, in the present specification, the expression of one side, the other side, etc. are described with reference to the drawings in the drawings, and it will be apparent that the expression of the object may be differently expressed if it changes. For the same reason, some components in the accompanying drawings are exaggerated, omitted, or schematically illustrated, and the size of each component does not entirely reflect the actual size.

In addition, terms including ordinal numbers such as first and second may be used to describe various components, but the components are not limited by the terms. These terms are only used to distinguish one component from another.

As used herein, the meaning of “comprising” specifies a particular characteristic, region, integer, step, operation, element and / or component, and other specific characteristics, region, integer, step, operation, element, component and / or group. It does not exclude the presence or addition of.

Hereinafter, a detailed configuration of a drain pipe connector and a drain trap including the same according to an embodiment of the present invention will be described with reference to the drawings.

1 to 4, the drain trap 1 according to an embodiment of the present invention may be installed embedded in the bottom surface of the space, such as a veranda of a typical home, for example, drain pipe connector 10, drain ( 20) and a drain pipe 30 may be included.

The drain pipe connector 10 may fix the drain pipe 30 inserted into the drain hole 20 to the inside of the drain trap 1. To this end, the drain pipe connector 10 is the inner tube insert 110, the connecting portion 120, the cover 130, the locking member 140, the close fixing cap 150, the support protrusion member 160 and the packing 170 ) May be included.

The inner tube inserting portion 110 is provided so that the inner tube 34 of the drain pipe 30 is inserted, and the drain pipe connector 10 may be disposed at a position such that the inner tube inserting portion 110 communicates with the drain hole 20. The inner tube insert 110 may be provided in a pipe shape, for example.

The connection part 120 extends radially from the end of the inner tube insertion part 110. Accordingly, the connection portion 120 may have a disk shape with a center drilled therein. In addition, the connection part 120 may be formed to connect the inner tube inserting part 110 and the cover part 130.

The cover part 130 extends from the connection part 120 and is disposed to cover at least a portion of the circumferential surface of the drain pipe 30. In this case, one surface of the connecting portion 120 may be connected to the inner tube inserting portion 110 and the other surface may be formed to be connected to the cover portion 130. In addition, the cover part 130 may be provided in a pipe shape, for example, similarly to the inner tube inserting part 110, and an opposite end portion of the side connected to the connection part 120 may have an open shape.

On the other hand, the diameter of the cover portion 130 may be larger than the diameter of the inner tube inserting portion (110). At this time, the outer surface of the cover portion 130 may be in close contact with the inner surface of the drain 20. In addition, the cover portion 130 may be formed in a shape extending from the edge of the connecting portion 120. Accordingly, the close fixing cap 150, the support protrusion member 160, and the packing 170, which will be described later, may be disposed in the inner space of the cover part 130 together with a portion of the drain pipe 30.

The locking member 140 may support the exterior 32 of the drain pipe 30 inside the drain 20. To this end, the engaging member 140 is formed extending from one surface of the connecting portion 120, the end of the support portion 141 and the support portion 141 protruding substantially in the same direction as the extending direction of the inner tube inserting portion 110. It is provided in, and may be divided into a catching portion 142 is caught in the groove 321 formed on the surface of the exterior (32). The locking member 140 may be provided in plural on an imaginary circle having a diameter equal to the diameter of the exterior 32 on one surface of the connection part 120. For example, three locking members 140 may be spaced apart at the same angle in the circumferential direction. Can be arranged.

The close fixing cap 150 is provided to be in close contact with the inner tube 34 inside the cover portion 130 so that the inner tube 34 is fixed to the outer surface 32.

To this end, the close fixing cap 150 may have, for example, a shape in which a wall portion extends in one direction from an edge portion of a circular disk shape, and may have an open shape on one surface thereof. Accordingly, the packing 170 to be described later may be inserted into and fixed through the opened one surface of the tight fixing cap 150.

In detail, the close fixing cap 150 may be in close contact with the support protrusion member 160 and at least a portion of the close contact portion 151 and the close contact portion 151 provided with the first thread 1511 on the inner surface. Protruding portion 152 extending radially inwardly from and at least a portion of the inner side surface of the protruding portion 152 may be divided into engagement protrusions 153 that are formed with the packing 170.

The support protruding member 160 may protrude from the connecting portion 120 inside the cover 130 and may be selectively fixed to the close fixing cap 150. The support protrusion member 160 has a space that is open to both sides therein so as to communicate with the inner space of the inner tube inserting portion 110, through which the inner tube 34 may be inserted.

In addition, the support protrusion member 160 may be formed on at least a portion of the outer circumferential surface, and may include a second thread 164 formed to engage with the first thread 1511 of the tight fixing cap 150. Accordingly, the first fixing thread 1511 and the second screw thread 164 are engaged with each other so that the tight fixing cap 150 and the support protrusion member 160 may be fixed to each other. As a result, when the drain pipe 30 is installed in the drain trap 1, the drain pipe 30 is inserted through the drain hole 20 of the drain trap 1, and then the close fixing cap 150 is attached to the support protruding member 160. The installation can be completed simply by fastening. In addition, a first inclined surface 162 is formed on at least a portion of the inner circumferential surface of the support protrusion member 160, and the inner space of the support protrusion member 160 is formed in a substantially conical shape by the first inclined surface 162 formed as described above. Can be.

The packing 170 is fixed to the inside of the tight fixing cap 150, it is in close contact with the inner tube (34). The packing 170 may be made of a material such as rubber, for example, it may be provided to seal between the close fixing cap 150 and the inner tube 34 and the support protrusion member 160. Due to the packing 170, wastewater remaining inside the drain trap 1 may be prevented from flowing back through a gap between the inner pipe 34 and the drain pipe connector 10.

In addition, a second inclined surface 174 may be formed on at least a portion of the outer circumferential surface of the packing 170. As a result, the packing 170 may have a conical shape in which an outer surface thereof is cut at a vertex. Accordingly, the packing 170 is press-fitted along the first inclined surface 162 while the first inclined surface 162 and the second inclined surface 174 of the support protruding member 160 are in close contact with each other, and the tight fixing cap 150 Airtightness between the support protruding members 160 may be maintained.

In addition, an engagement groove 172 is formed in one end of the packing 170, and the engagement protrusion 153 of the close fixing cap 150 is inserted into the engagement groove 172 formed as described above, such that fixing by molding may be performed. have. Accordingly, the packing 170 may be inserted into the tight fixing cap 150 and fixed. However, in the present embodiment, the case where the engaging groove is formed in the packing and the engaging projection is formed in the tight fixing cap as an example, but the spirit of the present invention is not limited thereto. For example, the engaging groove is formed in the interior of the tightly fixed cap, it is possible to be modified to be formed so that the engaging projection protrudes on one end of the packing.

The drain 20 may be provided on the top, front and / or side of the drain trap (1). In addition, the drain pipe 30 may be provided in the form of a double pipe including an exterior 32 and an inner tube 34.

The exterior 32 may be configured as, for example, a CD (Corrugated Duct) tube, and may have a shape in which a plurality of grooves 321 are spaced apart at regular intervals along the length direction. Accordingly, the surface of the exterior 32 may have a shape in which the peaks and valleys are repeated along the length direction. At least a portion of the inner tube inserting portion 110 and at least a portion of the inner tube 34 are disposed inside the outer shell 32, and the inner tube inserting portion 110 and the inner tube 34 may be protected by the outer shell 32. Can be.

The inner tube 34 is a tube disposed inside the outer shell 32 and may be configured as, for example, a polybutylene (PB) tube.

Hereinafter, with reference to Figures 5 and 6 will be described the operation and effects of the drain pipe connector and a drain trap including the same according to an embodiment of the present invention having the configuration as described above.

First, referring to FIG. 5, the drain trap 1 may be embedded in a bottom surface of a space such as a veranda, and may be installed in a closed state by a lid to open and close the upper portion thereof. At this time, the exterior 32 of the drain pipe 30 is first inserted into the drain hole 20 through the drain hole 20 of the drain trap 1 before the drain trap 1 is buried in the floor, and then the drain pipe connector 10 It may be fixed by the locking member 140 of the).

As described above, at least a part of the exterior 32 is installed inside the drain 20, and the free end of the exterior 32 may be installed with the drain trap 1 embedded in the bottom surface in a state of being exposed to the outside.

After the buried installation, the inner tube 34 is inserted through the free end of the exterior 32 exposed to the outside to accommodate the end of the inner tube 34 into the drain trap (1). In this case, the inner tube 34 may extend from the indoor unit of the air conditioner, for example. The inner tube 34 extended as described above may be inserted to pass through the inner tube insertion unit 110 and the support protrusion member 160.

Next, referring to FIG. 6, the close fixing cap 150 may be inserted through an end portion of the inner tube 34 passing through the inner tube insert 110 and the support protrusion member 160.

The close fixing cap 150 inserted as described above may be fastened and fixed to the support protrusion member 160. At this time, the packing 170 fixed in the tight fixing cap 150 is press-fitted along the first inclined surface 162 of the supporting protruding member 160 to close the fixing cap 150, the inner tube 34, and the supporting protruding member 160. ) Can be sealed. As a result, the wastewater remaining in the inside of the drain trap 1 can be prevented from flowing back through the gap between the inner pipe 34 and the drain pipe connector 10.

In addition, among the drain pipe 30, in particular, when it is necessary to replace it due to aging, breakage, etc. of the inner pipe 34, the operator opens the upper surface of the drain trap (1) and then close the fixing cap 150 to support the projecting member ( After separation from 160, replacement of the inner tube 34 can be accomplished through a very simple operation of pulling the inner tube 34 out. In this way, the inner pipe 34 of the drain pipe 30 can be easily replaced without destroying the wall surface or the bottom surface on which the drain pipe 30 is embedded.

Meanwhile, in the present embodiment, the support protrusion member 160 and the close fixing cap 150 have been described as being fixed to each other by a screw fastening method by the first screw thread 1511 and the second screw thread 164. This is not limited to this. Hereinafter, other embodiments that can be modified in this regard will be described with reference to the drawings. In the following description, only the differences will be described, and the same contents are used in the above-described embodiment.

7 and 8, there is shown a drain pipe connector and a drain trap including the same according to another embodiment of the present invention. Specifically, in the embodiments shown in FIGS. 7 and 8, the support protrusion member 160 and the tightly fixed cap 150 may be fixed by the locking unit 180 instead of fastening by a screw thread.

The locking unit 180 may be provided between the close fixing cap 150 and the cover 130, and may fix the close fixing cap 150 to the cover 130. The locking unit 180 may be provided spaced apart in a plurality of places along the circumferential direction in the space between the cover unit 130 and the close fixing cap 150. To this end, the locking unit 180 may include a fixing member 182, a locking piece 184 and a click member 186.

The fixing member 182 may be provided on an inner side surface of the cover 130, and one end of the locking piece 184 may be fixedly installed. The locking piece 184 is connected to the fixing member 182 and may be provided to press the close fixing cap 150. In addition, the locking piece 184 may be provided as a metal plate as an example, and may have a predetermined restoring force. Accordingly, when the shape is deformed in one direction, the restoring force may be generated in the opposite direction. The click member 186 is provided on the outer surface of the close fixing cap 150, and can selectively maintain the pressurized state of the locking piece 184. In this case, when an external force is applied by an operator or the like, the pressing state of the locking piece 184 may be released. For example, the locking piece 184 may be provided to restrain the central portion of the locking piece 184.

Accordingly, the inner tube 34 is inserted into the drain pipe connector 10, and the tight fixing cap 150 is engaged with the end of the supporting protrusion member 160 past the inner tube 34 so that the packing 170 is supported by the supporting protrusion member ( In the state in which it is pressed into the gap between the 160 and the inner tube 34, the locking piece 184 is constrained by the click member 186 to press the locking piece 184 tightly cap 150. At this time, as the restoring force acts in the direction toward the close fixing cap 150 by the shape deformation of the locking piece 184, the locking piece 184 may press the close fixing cap 150. By the pressing force, the state in which the tight fixing cap 150 is engaged with the support protrusion member 160 may be maintained.

In addition, even when the inner pipe 34 of the drain pipe 30 needs to be replaced, the operator applies the external force to the click member 186 to release the restraint state of the locking piece 184, and then supports the close fixing cap 150. The inner tube 34 can be easily separated by detaching from the protruding member 160.

Meanwhile, referring to FIGS. 9 and 10, a drain pipe connector and a drain trap including the same according to another embodiment of the present invention are shown. Specifically, in the embodiment shown in FIGS. 9 and 10, the support protrusion member 160 and the tight fixing cap 150 may be fixed to each other through a separate screw member 194. To this end, a fastening member 192, a screw member 194, and a fastening protrusion 156 may be further provided.

The fastening member 192 may be provided on the inner side of the cover part 130. A hole 1921 for screwing may be formed in the fastening member 192. The screw member 194 may be provided with a general screw and the like, and may be used to connect and fasten the fastening member 192 and the close fixing cap 150. In addition, the fastening protrusion 156 may be formed to protrude on the outer surface of the close fixing cap 150, the fastening protrusion 156 may be formed with a hole (1561) for screwing. To this end, the screw member 194 may have a male thread formed on the outer circumferential surface thereof, and a female thread corresponding thereto may be formed on the inner circumferential surface of the hole formed in the fastening member 192 and the fastening protrusion 156.

Accordingly, the screw member 194 is inserted into the hole 1561 formed in the fastening protrusion 156 and the hole 1921 formed in the fastening member 192, thereby connecting and fixing the fastening member 192 and the screw member 194. Can be. In addition, the fastening member 192 and the fastening protrusion 156 may be arranged in a plurality of spaced apart at the same angle along the circumferential direction in the space between the cover portion 130 and the close fixing cap 150. As a result, the fixing state of the support protruding member 160 and the close fixing cap 150 can be easily released simply by removing the screw member 194 by simply removing the inner tube 34. .

According to the drain pipe connector and the drain trap including the same according to the embodiments of the present invention having the configuration as described above, the drain pipe can be easily connected and installed, even if a part of the drain pipe, for example, replacement of the inner pipe is required There is an effect that it is possible to provide a drain pipe connector and a drain trap including the same that do not need to break the buried floor and wall.

Although the embodiments of the present invention have been described as specific embodiments, these are only examples, and the present invention is not limited thereto and should be construed as having the broadest scope in accordance with the basic idea disclosed herein. Those skilled in the art can combine / substitute the disclosed embodiments to implement a pattern of a timeless shape, but this also does not depart from the scope of the present invention. In addition, those skilled in the art can easily change or modify the disclosed embodiments based on the present specification, it is apparent that such changes or modifications belong to the scope of the present invention.

1: drain trap 10: drain pipe connection
20: drain port 30: drain pipe
32: exterior 321: home
34: inner tube 110: inner tube inserting portion
120: connecting portion 130: cover portion
140: locking member 141: support
142: locking portion 150: close fixing cap
151: close contact 152: protrusion
153: engaging projection 1511: first thread
156: fastening protrusion 1561: hole
160: support protrusion member 162: first inclined surface
164: second thread 170: packing
172: engagement groove 174: second slope
180: locking portion 182: fixing member
184: Locking Piece 186: Click Member
192: fastening member 1921: hole
194: screw member

Claims (9)

In the drain pipe connector for connecting and installing the drain pipe provided in the form of a double pipe including the exterior and the inner pipe inside the drain trap,
An inner tube insertion unit into which the inner tube is inserted;
A connecting portion extending radially from an end of the inner tube insert;
A cover part extending from the connection part and covering at least a portion of a circumferential surface of the drain pipe;
A close fixing cap that is in close contact with the inner tube inside the cover part and fixes the inner tube;
A protruding member protruding from the connection part inside the cover part and selectively fixed to the close fixing cap; And
Fixed to the inside of the tight fixing cap, including a packing in close contact with the inner tube,
Drain line connector. According to claim 1,
It further comprises a locking member extending from the connecting portion to support the appearance,
The locking member,
A support portion extending from one surface of the connection portion; And
It is provided at the end of the support portion, including a locking portion that is caught in the groove formed on the surface of the appearance,
Drain line connector. According to claim 1,
A first inclined surface is formed on at least a portion of the inner circumferential surface of the support protrusion member,
A second inclined surface is formed on at least a portion of the outer circumferential surface of the packing,
The packing is press-fitted along the first inclined surface while the first inclined surface and the second inclined surface are in close contact with each other, thereby maintaining airtightness.
Drain line connector. According to claim 1,
A first screw thread formed on at least part of an inner circumferential surface of the close fixing cap; And
A second screw thread formed on at least a portion of an outer circumferential surface of the support protrusion member, the second screw thread being engageable with the first screw thread,
When the first screw thread and the second screw thread are engaged with each other, the tight fixing cap and the support protrusion member are fixed to each other.
Drain line connector. The method of claim 4, wherein
The tight fixing cap,
A close contact with the support protruding member, wherein the first screw thread is provided on an inner side thereof;
A protrusion extending radially inward from at least a portion of an end of the contact portion; And
A protrusion formed from at least a portion of an inner side surface of the protrusion and engaging with the packing;
Drain line connector. The method of claim 5,
The packing is
Including an engaging groove that can be engaged with the engaging projection,
Drain line connector. According to claim 1,
It is provided between the close fixing cap and the cover portion, further comprising a locking portion for fixing the close fixing cap to the cover portion,
The locking portion,
A fixing member provided on the inner side of the cover part;
A locking piece connected to the fixing member to press the close fixing cap; And
It is provided on the outer surface of the close fixing cap, comprising a click member for selectively holding the pressing state of the locking piece,
Drain line connector. According to claim 1,
A fastening member provided on an inner surface of the cover part and having a hole for fastening a screw; And
Further comprising a screw member for connecting and fastening the fastening member and the close fixing cap,
Fastening protrusions are formed on the outer surface of the close fixing cap,
The fastening protrusion is formed with a hole for screwing,
The fastening member and the screw member are connected and fixed by inserting the screw member into the hole formed in the fastening protrusion and the hole formed in the fastening member.
Drain line connector. A drain pipe connector according to any one of claims 1 to 8; And
A drain hole into which the drain pipe is inserted;
The drain pipe connector is disposed at a position such that the inner tube insert portion communicates with the drain hole,
Drain trap.

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