阅读说明：本技术 排水器组件 (Drain assembly ) 是由 黄金镇 于 2019-05-23 设计创作，主要内容包括：根据本发明的洁具用排水器组件将流入管以及/或者流出管以一键(one touch)方式连接于排水器,因此作业者无需使用额外工具就能够简便且迅速地执行用于设置的组装作业和用于维护的拆卸作业。(The drain assembly for a sanitary appliance according to the present invention connects the inflow pipe and/or the outflow pipe to the drain in a one-touch manner, so that an operator can simply and rapidly perform an assembling work for setting and a disassembling work for maintenance without using an additional tool.)

1. A drain assembly for a plumbing fixture, comprising: a water drainer (30) which is provided with an inlet (31) for water drained from the sanitary appliance (1) to flow in on the upper side, a retention space (32) on the lower side inside, an outlet (33) for draining water if the water in the retention space (32) exceeds a certain water level on one side of the circumference, and a water sealing pipe (34) extending from the inlet (31) to the retention space (32); and an outflow pipe (20) connected to the outflow port (33) through a joint so that water from the drain (30) flows out to a sewer,

the outflow pipe (20) has a locking groove (22) formed on the outer periphery of an insertion end portion (21) inserted into the outflow port (33),

the joint is as follows:

a joint housing (600) provided with the outflow port (33) on the circumferential side of the drain (30) and a guide insertion groove (601) for penetrating the outflow port (33) transversely;

a lock plate (700) which is inserted into the guide slot (601) so as to be movable in the direction in which the guide slot (601) passes through, which has a through hole (711) through which the insertion end (21) can pass, and which has a through hole (711) that is aligned or misaligned with the outflow port (33) in the direction of movement, and which has a locking portion (712) formed on the inner periphery of the through hole (711) that engages with the locking groove (22) of the insertion end (21) inserted into the outflow port (33) when the through hole (711) is misaligned with the outflow port (33) and prevents the insertion end (21) from separating; and

and an elastic force applying device (800) which applies an elastic force to the lock plate (700) to move the lock plate (700) in a direction in which the through hole (711) and the outlet (33) are not aligned.

2. The drain assembly for a plumbing fixture of claim 1, wherein,

the lock plate (700) includes: a plate main body (710) which is inserted into the guide slot (601) so as to be movable along a penetrating direction of the guide slot (601), and which has the through hole (711); and a pushing block (720) which is provided on the front side end or the rear side end of the plate main body (710) with reference to the moving direction of the plate main body (710) and is pressed,

the elastic force applying means (800) is configured as a plate spring protruding from each of both sides of the plate main body (710),

contact stages (604) that respectively contact the leaf springs that move together with the plate main body (710) when the push block (720) is pressed to operate and guide the leaf springs to be bent and deformed are formed in the guide insertion groove (601).

3. The drain assembly for a plumbing fixture of claim 2, wherein,

a receiving groove (603) communicating with the guide insertion groove (601) and receiving the push block (720) is formed in the joint housing (600).

Technical Field

Embodiments of the present invention relate to a drain assembly that guides water discharged from a sanitary fixture (sanitarian application) such as a wash basin, urinal, bathtub, sink, etc., to a drain pipe.

Background

In general, a drain outlet for discharging water is provided in a sanitary appliance such as a washbasin, and a drain guide (drain guide device) for guiding water discharged through the drain outlet to a drain pipe is connected to the drain outlet of the sanitary appliance.

Drainage guide devices for sanitary wares according to the prior art are disclosed in korean laid-open patent publication No. 10-2009-0037513 (2009.04.16.), korean granted patent publication No. 10-1734203 (2017.05.17.), and korean granted patent publication No. 10-1843321 (2018.03.28).

A drain guide for a plumbing fixture according to the prior art includes an inlet pipe, an outlet pipe, and a drain. The drain device has a water seal pipe extending from an inlet to a retention space, and the water seal pipe is configured such that water flowing from the inlet to the upper side falls and is stored in the retention space in the lower side, and that water (seal water) in the retention space flows out to an outlet on the circumferential side by overflowing when the water exceeds a predetermined water level. The inflow pipe is connected to an inflow port of the drain device to allow water discharged from a drain port of the sanitary appliance to flow into the drain device, and the outflow pipe is connected to an outflow port of the drain device to allow water from the drain device to flow out to the drain pipe.

Here, the inlet pipe and the outlet pipe are connected to the inlet and the outlet of the drain, respectively, by nuts. Therefore, the drain guide device for the sanitary appliance according to the prior art has the following cumbersome operations: in order to connect or disconnect the inflow pipe or the outflow pipe to or from the drain, the nut needs to be directly rotated several times by hand or rotated several times by a tool by an operator. Of course, it is not possible to say a very difficult task when considering the point at which the work of connecting the drain to the inlet or outlet pipe is generally performed at a corner (e.g. below or behind the plumbing fixture) due to the nature of the plumbing fixture.

Disclosure of Invention

It is an object of embodiments of the present invention to provide a drain assembly for a plumbing fixture that is more advantageous in terms of improved workability.

According to an embodiment of the present invention, there is provided a drain assembly for a sanitary appliance including an inflow pipe, i.e., a first pipe (10), an outflow pipe, i.e., a second pipe (20), and a drain (30) for preventing reverse flow of malodor, the drain (30) including: an inflow port (31) formed on the upper side in the Z-axis direction; a retention space (32) formed inside the lower side in the Z-axis direction; an outflow port (33) through which the water formed as the retention space (32) on the circumferential side flows out when exceeding a certain water level; and a water shut-off pipe (34) extending from the inflow port (31) to the retention space (32), wherein the first pipe (10) is connected to the inflow port (31) by a first joint (first joint) by one key, and the second pipe (20) is connected to the outflow port (33) by a second joint (second joint) by one key, so that water discharged from the sanitary appliance (1) flows into the drain (30) through the first pipe (10), and water from the drain (30) flows out to the drain through the second pipe (20).

The first pipe (10) may be formed with a male screw (12) on the outer periphery of a first insertion end portion (11) inserted into the inflow port (31). Also, the first joint may include: a nut body (100) including a base body (110) having a nut hole (111) penetrating through a center portion thereof in a Z-axis direction and a stopper surface (112) formed on a lower first surface (S11) of both surfaces (S11, S12) in the Z-axis direction along a periphery of the nut hole (111), a wall body (120) provided on the first surface (S11) in a closed loop shape along a periphery of the stopper surface (112), and a partition plate (130) disposed on both sides of the stopper surface (112) in the X-axis direction and dividing the stopper surface (112) into a first stopper surface (112a) and a second stopper surface (112b) on one side and the other side of the Y-axis direction, respectively, a first stopper surface (121) having a shape expanding toward a front end side of the wall body (120) is formed on an inner peripheral wall body of the wall body (120), and coupling protrusions (122) are formed on both sides of an outer periphery of the wall body (120) in the X-axis direction, respectively, each of the engaging projections (122) extends in the outer circumferential direction of the wall body (120) so as to reinforce both sides of the wall body (120) in the X-axis direction in the Y-axis direction, and can prevent the wall body (120) from deforming by an external force acting on the wall body (120) in the Y-axis direction; a double-thread member (200) which is disposed on the first stop surface (112a) and the second stop surface (112b), respectively, and which is movable in the Z-axis direction and movable in the Y-axis direction toward the center of the nut body (100) or movable outward from the center of the nut body (100) by forming a thread (210) constituting a part of an internal thread corresponding to the external thread (12) on the inner circumference thereof and forming a second tapered surface (221) corresponding to the first tapered surface (121) on the outer circumference thereof, respectively; a body cover (300) which is provided at an upper end portion of the drain (30), is fitted to the nut body (100), has the inflow port (31) communicating with the nut hole (111), has a bracket (301) in which a support surface opposite to the stopper surface (112) is formed, and has coupling grooves (302) formed in an inner periphery thereof for receiving the coupling protrusions (122), respectively; and a coil spring (400) having both side ends supported by the double-threaded member (200) and the support surface, respectively, and configured to apply an elastic force to the double-threaded member (200) toward the first surface S11.

In the first joint, a seal member (500) may be interposed between an outer periphery of the wall body (120) and an inner periphery of the body cover (300), a seal groove (125) that accommodates the seal member (500) may be formed in the outer periphery of the wall body (120), and the seal groove (125) may be disposed on the first surface S11 side with respect to a position where the coupling projection (122) is disposed.

In the first joint, guide grooves (123) may be formed at intervals in the circumferential direction of the wall body (120) at the distal end of the wall body (120), guide bases (323) inserted into the guide grooves (123) may be formed on the inner periphery of the main body cover (300), first inclined surfaces (124) may be formed on the guide grooves (123) so that the size thereof decreases as the guide grooves extend toward the bottom surfaces of the guide grooves (123), and second inclined surfaces 324 may be formed on the guide bases (323) so as to correspond to the first inclined surfaces (124).

The second tube (20) may be formed with a catching groove (22) on the outer periphery of a second insertion end portion (21) inserted into the outflow port (33). Further, the second joint may include: a joint housing (600) provided with the outflow port (33) on one side of the circumference of the drain (30), the joint housing (600) having a guide slot (601) through which the outflow port (33) passes; a lock plate (700) which is inserted into the guide slot (601) so as to be movable in the direction in which the guide slot (601) passes through, has a through hole (711) through which the insertion end (21) can pass, and has the through hole (711) aligned or misaligned with the outflow port (33) in the direction of movement, and has a locking portion (712) formed on the inner periphery of the through hole (711) to engage with the locking groove (22) of the insertion end (21) inserted into the outflow port (33) when the through hole (711) is misaligned with the outflow port (33) and prevent the insertion end (21) from being separated; and an elastic force applying device (800) that applies an elastic force to the lock plate (700) and moves the lock plate (700) in a direction in which the through hole (711) and the outlet (33) are not aligned.

The lock plate (700) may include: a plate main body (710) which is inserted into the guide slot (601) so as to be movable along a penetrating direction of the guide slot (601), and which has the through hole (711); and a pushing block (720) which is provided on the front side end or the rear side end of the plate main body (710) with reference to the moving direction of the plate main body (710) and is pressed. The elastic force applying unit (800) may be configured as leaf springs protruding from both sides of the plate main body (710). Contact stages (604) that respectively contact the leaf springs that move together with the plate main body (710) when the push block (720) is pressed to operate and guide the leaf springs to be bent and deformed may be formed in the guide insertion groove (601).

A receiving groove (603) communicating with the guide insertion groove (601) and receiving the push block (720) may be formed at the joint housing (600).

According to the embodiment of the present invention, the inflow pipe (first pipe (10)) or the outflow pipe (second pipe (20)) is connected to the drain (30) by one-touch by a joint, respectively, and thus the work of connecting the inflow pipe or the outflow pipe to the drain can be simply and rapidly performed without using an additional tool.

According to the embodiment of the present invention, in the first joint, the nut body (100) and the body cover (300) are combined by inserting the combining protrusion (122) into the combining groove (302) having the bottom surface and the shape of the periphery blocked from the outside, so that the water leakage phenomenon that water leaks (gushes) around the circumference can be prevented from the source. Further, since the seal groove (125) for accommodating the seal member (500) is disposed on the first surface S11 side with reference to the position where the coupling projection (122) is disposed, it is possible to reliably prevent water from leaking to the outside through the gap between the outer periphery of the wall body (120) and the inner periphery of the main body cover (300). In addition, the wall body (120) is formed to have a closed loop (closed ring) shape, the connecting protrusions (122) respectively arranged on the two sides of the outer periphery of the wall body in the X-axis direction extend long in the outer periphery direction of the wall body, and the double-thread component (200) is arranged in the Y-axis direction, so even if external force such as the double-thread component moves from the center to the outer side along the Y-axis direction acts on the wall body in the Y-axis direction, the deformation of the wall body can be minimized. That is, the closed loop shape of the wall body and the reinforcing action of the coupling projection positively prevent deformation of the wall body and damage caused by the deformation, and thus, long-term use can be ensured. Even if the coupling direction is slightly distorted when the nut body (100) and the body cover (300) are assembled, the coupling direction is corrected by the guiding action of the guide groove (123) having the first inclined surface (124) and the guide table (323) having the second inclined surface (324), so that an unskilled person can assemble the nut body and the body cover easily and quickly.

Drawings

Fig. 1 is a state view of a use of a drain assembly according to an embodiment of the present invention.

Fig. 2 is an exploded perspective view of a drain assembly according to an embodiment of the present invention.

Fig. 3 is a perspective view of the drain shown in fig. 1 and 2, in which (a) shows an example of the drain, and (B) shows another example of the drain.

Fig. 4 is a sectional perspective view of the drainer shown in fig. 3 (a) as viewed from the Y-axis direction.

Fig. 5 and 6 are exploded perspective views of the drain shown in fig. 3 (a) as viewed from different directions from each other.

Fig. 7 and 8 are cross-sectional views of the first joint shown in fig. 4 to 6, as viewed from the X-axis direction, and illustrate the structure and operation of the first joint.

Fig. 9 is a front view of the nut body shown in fig. 7 and 8 as viewed from the X-axis direction.

Fig. 10 is a front view of fig. 9 (i.e., a bottom view of the nut main body) viewed from the B direction.

Fig. 11 is a cross-sectional view taken along line C-C of fig. 9.

Fig. 12 and 13 are sectional views showing the structure and operation of the second joint shown in fig. 5 and 6, in which each (a) is a sectional view as viewed from above and each (B) is a sectional view as viewed from the front.

Detailed Description

Hereinafter, preferred embodiments of the present invention will be described with reference to the accompanying drawings.

An embodiment of the present invention is a drain guide, i.e., a drain unit assembly, which guides water discharged through a drain port provided in a sanitary appliance such as a wash basin, urinal, bathtub, or sink to a drain pipe.

A drain assembly for a plumbing fixture according to an embodiment of the present invention is shown in figures 1 to 13.

Referring to fig. 1, 2, etc., a drain assembly for a sanitary appliance according to an embodiment of the present invention includes an inflow pipe, i.e., a first pipe 10, an outflow pipe, i.e., a second pipe 20, and a drain 30 for preventing reverse flow of malodor.

Referring to fig. 4 and the like, the drain 30 is formed to have a certain length in the Z-axis direction, i.e., the vertical direction. The drain 30 has an inlet 31 formed on the upper side, a retention space 32 formed inside the lower side, an outlet 33 through which water (seal water) having the retention space 32 formed on the circumferential side overflows when the water exceeds a predetermined water level, and a seal water pipe 34 extending from the inlet 31 to the retention space 32. The inflow port 31 and the outflow port 33 may be circular in cross section. The retention space 32 and the outflow port 33 communicate with each other. The water blocking pipe 34 extends downward in the Z-axis direction and has an outlet at a lower end formed to a length that allows the outlet to be immersed in water in the retention space, thereby preventing backflow of offensive odors through the inlet 31.

Referring to fig. 5, 6, and the like, such a drainer 30 includes an upper odor trap body 30A and a lower cup (cup)30B coupled to each other. The odor prevention flap body 30A includes an inflow port 31, an outflow port 33, and a water seal pipe 34. The deodorization flap main body 30A has an open lower end and a lower inner region forming an upper part of the retention space 32. The cup 30B is formed to have a shape opened upward. The cup 30B is configured such that the inner region forms a lower part of the retention space 32. The lower interior region of odor trap body 30A and the interior region of cup 30B form a retention space 32 when odor trap body 30A and cup 30B are joined to one another.

Foreign substances mixed in the water flowing into the retention space 32 through the inflow port 31 and the water seal pipe 34 are collected in the cup 30B. Therefore, when the cup 30B is separated from the odor prevention flap main body 30A, foreign matter collected in the cup 30B can be removed.

As shown in fig. 4 to 6, the deodorization flap main body 30A is formed integrally with a coupling pipe body 35 having a circular cross section at a lower end portion of the main body, and the cup 30B is formed such that an upper end portion thereof has an inner periphery corresponding to an outer periphery of the coupling pipe body 35 and is fitted over the outer periphery of the coupling pipe body 35.

The odor trap main body 30A is formed such that the coupling pipe body 35 has a smaller outer periphery than the main body and a step is formed between the main body and the coupling pipe body 35. A plurality of projections 38 are formed on the outer periphery of the coupling pipe 35 with insertion paths 37 formed at intervals along the outer peripheral direction of the coupling pipe 35, and the width between the insertion path 37 and the step surface 36 is gradually reduced toward one side along the outer peripheral direction of the coupling pipe 35. The upper end portion of the cup 30B is formed with an insertion projection 39 on the inner periphery thereof, which is interference-fitted to the insertion path 37 when the cup 30B is inserted into the insertion path 37 and rotated in a direction to reduce the width of the insertion path 37.

In fig. 4 to 6, reference numeral 30C denotes a seal member (gasket) constituting the drain 30, and the seal member 30C of the drain 30 performs a watertight function between the outer periphery of the coupling pipe body 35 and the inner periphery of the cup body 30B.

The first pipe 10 is simply connected to the inflow port 31 of the drain 30 by one-touch through a first joint (first joint), and the second pipe 20 is simply connected to the outflow port 33 of the drain 30 by one-touch through a second joint (second joint).

Referring to fig. 2, the first tube 10 has a first insertion end portion 11 inserted into the inflow port 31. The first insertion end portion 11 is one end portion in the longitudinal direction of the first pipe 10, the other end portion of the first pipe 10 is connected to the drain port of the plumbing fixture 1, and water discharged to the drain port of the plumbing fixture 1 flows into the drain 30 through the first pipe 10. A male screw 12 is formed on the outer periphery of the first insertion end portion 11. If the sanitary appliance 1 is a wash basin, as shown in fig. 1, the first pipe 10 may be a pop-up valve (pop-up valve) provided with a first insertion end 11.

The first joint is provided at the upper end portion of the drain 30, has a female screw coupled to the male screw 12 of the first insertion end portion 11, is an automatic nut (auto nut) configured such that the female screw and the male screw 12 are coupled to each other by rotating about the Z-axis direction or by pushing and inserting in the Z-axis direction, and includes a nut body 100, a double screw member 200, a body cover 300, a coil spring (compression coil spring) 400, and a seal member (packing) 500, as shown in fig. 4 to 11.

The nut body 100 is composed of a base 110, a wall 120, and a partition 130.

The base 110 has a nut hole 111 penetrating through the center portion in the Z-axis direction, and a stopper surface 112 is formed along the periphery of the nut hole 111 on the lower first surface S11 of the two surfaces S11 and S12 in the Z-axis direction, i.e., the first surface S11 and the second surface S12.

Wall 120 stands on first surface S11 of base 110. That is, wall 120 protrudes from first surface S11 in the Z-axis direction. The wall 120 is disposed in a closed loop shape along the circumference of the stop surface 112. The wall 120 of the closed loop shape may be formed in a circular shape.

A first tapered surface 121 is provided on the inner periphery of the wall body 120. First tapered surface 121 is formed in a shape such that the inner circumferential dimension of wall body 120 gradually increases from first surface S11 of base 110 toward the distal end side of wall body 120.

A double combining protrusion 122 is formed at the outer circumference of the wall body 120. The double engaging protrusions 122 are disposed on both sides of the X-axis direction, respectively. Each coupling protrusion 122 extends along the outer circumferential direction of the wall body 120 so as to reinforce both sides of the wall body 120 in the X-axis direction in the Y-axis direction, so that the wall body 120 can be prevented from being bent or deformed by an external force acting on the wall body 120 in the Y-axis direction. Each of the coupling protrusions 122 may have a length L of 1/3-1/6 with respect to the outer circumferential length of the wall body 120. The wall body 120 has a strength structurally improved by the reinforcement of the coupling protrusion 122.

The partition 130 is disposed on the stop surface 112 of the base 110 on both sides in the X-axis direction, respectively, and divides the stop surface 112 into a first stop surface 112a located on one of both sides in the Y-axis direction and a second stop surface 112b located on the other of both sides in the Y-axis direction.

The double screw members 200 are disposed on the first and second stop surfaces 112a and 112b, respectively. Each threaded member 200 includes threads 210 and a wedge plate 220. The thread 210 is designed as an internal thread. The thread 210 is formed to constitute a part of the female thread corresponding to the male thread 12 of the first insertion end portion 11 at the inner periphery of each wedge plate 220.

The wedge plate 220 has second tapered surfaces 221 corresponding to the first tapered surfaces 121 formed on the outer peripheries of the wall body 120 facing the inner periphery thereof. The screw member 200 is movable in the Z-axis direction and movable in the Y-axis direction toward the center of the nut body 100 or outward from the center of the nut body 100 according to the first tapered surface 121 and the second tapered surface 221 which correspond to each other (see fig. 8).

In the wedge plate 220, a support table 222 is formed at a first end portion facing the stop surface 112 side and a second end portion disposed in a second end portion opposite to the first end portion, respectively.

On the other hand, each of the separators 130 includes: a double-sided member 131 facing both sides of the wedge plate 220 to restrict the rotational movement of the wedge plate 220; and a connecting member 132 connecting the double-sided members 131. The double-sided member 131 may be coupled to the wall 120 in a state of being coupled to the base 110.

The body cover 300 is provided at an upper end portion of the body constituting the drain 30. The body cover 300 may be integrated with the body of the drain 30. The main body cover 300 covers the nut main body 100 by fitting around the outer periphery of the wall body 120.

The body cover 300 has an inlet 31 of the drain 30, and the inlet 31 is formed to face the nut hole 111. In addition, the body cover 300 has a plurality of brackets 301 formed with a support surface opposite to the stopper surface 112.

Coupling grooves 302 for receiving the coupling protrusions 122, respectively, are formed at the inner circumference of the body cover 300. If the coupling protrusions 122 are inserted into the coupling grooves 302, respectively, the nut body 100 and the body cover 300 are coupled to each other to prevent separation.

Here, each coupling groove 302 is formed to have a bottom surface and a shape in which the periphery is blocked from the outside. Since the coupling protrusion 122 is inserted into the coupling groove 302 having such a groove structure, the first joint can securely couple the nut body 100 and the body cover 300, and can prevent a water leakage phenomenon in which water leaks (gushes) around the four circumferential directions even if the water inadvertently flows between the nut body 100 and the body cover 300.

The coil spring 400 applies an elastic force to the double screw member 200 from the bracket 301 of the body cover 300 toward the first surface S11 of the base 110. The coil spring 400 has one end supported by the support base 222 of the double screw member 200 and the other end supported by the support surface of the bracket 301, and applies an elastic force to the double screw member 200.

The sealing member 500 of the first joint performs a watertight function between the outer circumference of the wall body 120 and the inner circumference of the main body cover 300. The wall body 120 is formed with a seal groove 125 along the outer circumferential direction, which accommodates the seal member 500 of the first joint and prevents the seal member 500 of the first joint from coming off. The seal groove 125 is disposed on the first surface S11 side with reference to the arrangement position of the coupling boss 122.

According to the watertight function of the sealing member 500 by the first joint, the first joint can reliably prevent the water from leaking to the outside through the gap between the outer periphery of the wall body 120 and the inner periphery of the main body cover 300. Of course, by preventing water leakage, it is possible to prevent the user from being inadvertently wetted with water, the periphery from being contaminated with discharged water, and the like.

On the other hand, guide grooves 123 are formed at intervals in the circumferential direction of the wall body 120 at the distal end of the wall body 120, and guide bases 323 inserted into the guide grooves 123 are formed on the inner periphery of the main body cover 300. According to the guide grooves 123 and the guide stages 323, when the nut body 100 and the body cover 300 are combined, the combining direction can be guided such that the combining protrusions 122 are inserted into the combining grooves 302, respectively.

First inclined surfaces 124 that decrease in size as they go to the bottom surfaces of the guide grooves 123 are formed in the guide grooves 123, and second inclined surfaces 324 that correspond to the first inclined surfaces 124 are formed in the guide bases 323. The first inclined surface 124 and the second inclined surface 324 allow the guide table 323 to smoothly enter the guide groove 123.

According to the guide groove 123 having the first inclined surface 124 and the guide table 323 having the second inclined surface 324, an unskilled person can easily and quickly assemble the nut body 100 and the body cover 300 to the first joint.

When the first joint configured as described above is press-fitted to the outer periphery of the first insertion end portion 11 through the nut hole 111 (or the first insertion end portion 11 is press-fitted to the nut hole 111), the male thread 12 of the first insertion end portion 11 engages with the female thread of the double threaded member 200, and therefore, the double threaded member 200 is pushed in the Z-axis direction against the elastic force of the coil spring 400 by the first tapered surface 121 and the second tapered surface 221, moves outward in the Y-axis direction from the center, and then returns by the coil spring to be screwed to the male thread 12 of the first insertion end portion 11. Therefore, according to the first joint, the first pipe 10 can be easily and quickly connected to the inflow port 31 of the drain 30.

Further, the first joint is formed in a shape in which the wall body 120 has a closed loop, the coupling bosses 122 disposed on both sides in the X-axis direction on the outer periphery of the wall body 120 extend long in the outer peripheral direction of the wall body 120, and the double screw member 200 is disposed in the Y-axis direction, so that even if a strong external force such as the double screw member 200 moves from the center to the outside in the Y-axis direction acts on the wall body 120 in the Y-axis direction, deformation of the wall body 120 can be minimized. That is, the closed loop shape of the wall body 120 and the reinforcing action of the coupling projection 122 elongated in the outer circumferential direction of the wall body 120 positively prevent the deformation of the wall body 120 and the damage caused by the deformation, and thus the long-term use can be ensured.

Referring to fig. 2, the second tube 20 has a second insertion end portion 21 inserted into the outflow port 33. The second insertion end portion 21 is one end portion in the longitudinal direction of the second pipe 20, the other end portion of the second pipe 20 is connected to a downcomer pipe, and water in the retention space 32 flows out to the downcomer pipe through the second pipe 20 when overflowing. A catching groove 22 is formed in the outer periphery of the second insertion end portion 21. As shown in fig. 2 and the like, the second pipe 20 is a corrugated pipe which is bendable and adjustable in length, and is connected to a downcomer through the ground when the downcomer is disposed under the ground as in (a) of fig. 1, and is connected to a downcomer through the wall when the downcomer is disposed in the wall as in (B) of fig. 1. Thus, embodiments of the present invention are composite drainer assemblies.

Reference numeral 25 in fig. 2 denotes a seal member (gasket) of the second pipe 20, and as shown in fig. 12 and 13, the seal member 25 of the second pipe 20 is interposed between the second insertion end portion 21 and the outflow port 33 when inserted into the outflow port 33 to perform a watertight function.

Referring to fig. 4 to 6, 12, 13, and the like, the second joint includes: a joint housing 600 having an outlet port 33 integrally formed with the main body of the drain 30 on the circumferential side of the drain 30, and having a guide insertion groove 601 through which the outlet port 33 passes; a lock plate 700 inserted into the guide slot 601 so as to be movable in a penetrating direction of the guide slot 601, having a through hole 711 through which the second insertion end portion 21 can pass, the through hole 711 being aligned or misaligned with the outflow port 33 in the moving direction, and a catching portion 712 formed on an inner periphery of the through hole 711 to be engaged with the catching groove 22 of the second insertion end portion 21 inserted into the outflow port 33 when the through hole 711 is misaligned with the outflow port 33, thereby preventing the second insertion end portion 21 from being separated; and an elastic force applying device 800 that applies an elastic force to the lock plate 700 to move the lock plate 700 in a direction in which the through hole 711 and the outlet 33 are not aligned.

Such a second joint is held in a state where the through hole 711 of the lock plate 700 is not aligned with the outlet 33 by the elastic force applying device 800. In this state, when the lock plate 700 is moved to align the through hole 711 with the outlet 33, the second insertion end 21 can be inserted into the outlet 33 as shown in fig. 12. When the moving force to the lock plate 700 is removed after the second insertion end portion 21 is inserted into the outlet port 33, the lock plate 700 is moved in the direction in which the through hole 711 and the outlet port 33 are not aligned by the elastic force applying device 800, and the engaging portion 712 is engaged with the engaging groove 22 of the second insertion end portion 21 as shown in fig. 13. At this time, even if the second tube 20 is pulled, the second insertion end 21 is prevented from being separated by the engagement action of the catching groove 22 and the catching part 712. Of course, when the second tube 20 is pulled in a state where the through hole 711 is aligned with the outflow port 33, the second insertion end 21 is separated from the outflow port 33.

The locking plate 700 includes: a plate main body 710 inserted into the guide slot 601 so as to be movable in a penetrating direction of the guide slot 601, and having a through hole 711; and a pushing block 720 provided at the rear end of the plate body 710 with reference to the moving direction of the plate body 710 and pressed by an operator.

A part or all of the inner circumference of the through hole 711 is configured as an inclined surface 713 that can contact the tip of the second insertion end portion 21 inserted into the outlet port 33. The inclined surface 713 of the through hole 711 is formed in a shape such that the size of the through hole 711 decreases toward the insertion direction of the second insertion end 21. Thus, when the second insertion end 21 inserted into the outlet port 33 contacts the inclined surface 713 and presses the inclined surface 713, the through hole 711 of the locking plate 700 can move in the direction aligned with the outlet port 33.

Stopper protrusions 714 are provided on both sides of the front portion of the plate body 710, and stopper bases 602 that come into contact with the stopper protrusions 714 to restrict the movement of the lock plate 700 in the rear direction when the through hole 711 and the outlet 33 are not aligned with each other when the lock plate 700 is moved in the rear direction by the elastic force applying unit 800 are formed in the guide slot 601.

A receiving groove 603 communicating with the guide insertion groove 601 and receiving the push block 720 is formed at the joint housing 600. The elastic force imparting unit 800 is configured as a plate spring protruding from both sides of the rear portion of the plate body 710. Contact bases 604 are formed in the guide insertion groove 601, and each contact a leaf spring that moves forward together with the plate main body 710 when the pusher block 720 is pressed by an operator, thereby guiding the leaf spring to bend and deform.

On the other hand, the push block 720 may be formed to form the same plane as the outside of the joint housing 600 when moved rearward by the elastic force applier 800.

According to the inclined surface 713, the stopper table 602, the stopper boss 714, the plate spring, and the contact table 604, when the second pipe 20 is connected to the outlet port 33 of the drainer 30, the operator completes the connection of the second pipe 20 without additionally pressing the push block 720 to insert the second insertion end portion 21 into the outlet port 33.