JP2010101050A - Drainage structure of bathroom unit - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a drainage structure of a bathroom unit which can easily attach and detach a drain piece having a check valve, can secure a sufficient water-sealing depth at a bathtub drain. <P>SOLUTION: The drainage structure of the bathroom unit includes a washing place drain, the bathtub drain, and a bathtub drain pipe. The washing place drain has a washing place water-reserving portion, a downstream piping connection, a washing place sealing-water cylinder, and the drain piece having a backflow checking function. The bathtub drain has a bathtub water-reserving portion having an open top capable of reserving water, and a bathtub sealing-water cylinder capable of forming sealing water using an overflow surface of the washing place water-reserving portion. The drain piece is attached in such a way that the drain piece is restrained from moving horizontally but is allowed to move vertically in a state that the washing place sealing-water cylinder is removed. <P>COPYRIGHT: (C)2010,JPO&INPIT

Description

  The present invention relates to a drainage structure for a bathroom unit.

  Conventionally, when draining hot water used in the bathroom, a drain trap has been provided to block odors from the sewage pipes and prevent insects from entering. Patent Document 1 discloses a device in which a drain trap is provided on the washing floor floor side of a bathroom and the bathtub drainage of the bathtub is merged in the drain trap.

  A member called a drainage piece is inserted into an end of the drainage trap side of the bathtub drainage pipe part connecting the bathtub drainage port and the drainage trap. This drainage piece has two roles. The first role is to prevent the drainage from flowing back to the bathtub side when a large amount of water is washed away from the washing area. The second role is to secure the lower end of the sealing depth in the bathtub-side drainage section. In particular, in order to play the latter role, the drainage piece had to be inserted in a watertight manner at the end of the bathtub drainage pipe.

However, since the drainage piece is inserted in a watertight manner, there is a problem that it is difficult to remove and attach when the user cleans. Moreover, since the drainage piece itself is provided at a site that is difficult to reach, it is more difficult to remove and attach.
JP 2001-152508 A Japanese Patent No. 3262105

  The aspect of the present invention has been made based on recognition of such a problem, and can easily attach and detach a drainage piece having a backflow prevention valve, and can sufficiently secure a sealing depth in a drainage part on the bathtub side. Provide drainage structure for bathroom unit.

  According to one aspect of the present invention, a washroom-side drainage section provided on the washroom floor side, a bathtub-side drainage section provided on the bathtub side, and the wastewater in the bathtub-side drainage section are guided into the washroom-side drainage section. A bathroom unit drainage structure, wherein the washing station side drainage part is open at an upper part and can store water; A wash station side sealing cylinder capable of forming a sealed water by a downstream pipe connection part to which a downstream pipe for discharging water overflowing from the inside of the reservoir part is connected; and an overflow surface of the washing station side reservoir part; and A drainage piece that is detachably attached to the end of the bathtub drainage pipe part and has a backflow prevention function for preventing a large amount of drainage flowing into the washing ground side drainage part from flowing into the bathtub drainage pipe side. Provided, the bathtub side drainage section is open at the top, A tub-side water reservoir capable of storing water, and a tub-side water-sealed cylinder capable of forming a sealed water by the overflow surface of the washing area-side water reservoir, wherein the drainage piece is restrained from moving in the horizontal direction. And a drainage structure for a bathroom unit, which is attached so as to be movable in a vertical direction in a state in which the washing-side-side sealed water bottle is removed.

  ADVANTAGE OF THE INVENTION According to the aspect of this invention, the drainage structure of the bathroom unit which can make it easy to attach or detach the drainage piece which has a backflow prevention valve, and can fully ensure the sealing depth in the drainage part by the side of a bathtub can be provided. .

1st invention can guide the waste_water | drain in the said washroom side drainage part provided in the washroom side drainage part provided in the washroom floor side, the bathtub side drainage part provided in the bathtub side, and the said bathtub side drainage part in the said washroom side drainage part A drainage structure for a bathroom unit including a bathtub drainage pipe, wherein the washroom-side drainage section is open at an upper portion and can store water, and in the washroom-side drainage section. A downstream side pipe connecting portion to which a downstream side pipe for discharging the water overflowing from the outside, a overflow side of the flush side water storage part, and a wash place side sealing cylinder capable of forming a sealed water, and the bathtub drain pipe A drainage piece that is detachably attached to the end of the unit, and has a backflow prevention function for suppressing a large amount of wastewater that has flowed into the washroom-side drainage portion from flowing into the bathtub drainage pipe side, The bathtub-side drainage unit opens up and collects water A tub-side water reservoir capable of forming a sealed water by the overflow surface of the wash-basin-side water reservoir, and the drainage piece is restrained from moving in the horizontal direction. And a bathroom unit drainage structure that is attached so as to be movable in a vertical direction in a state in which the washing-place-side sealed water bottle is removed.
According to the drainage structure of this bathroom unit, it is possible to provide a drainage structure of a bathroom unit that can easily attach and detach a drainage piece having a backflow prevention valve and can sufficiently secure a sealing depth in a drainage part on the bathtub side. Can do.

Further, according to a second invention, in the first invention, the sealing depth formed by the lower end of the washing-side sealing tube and the bathtub-side sealing tube and the overflow surface of the washing-site-side reservoir is at least 50 mm, respectively. It is the drainage structure of the bathroom unit characterized by being secured above.
According to the drainage structure of this bathroom unit, by ensuring the sealing water depth is at least 50 mm or more, it is possible to reduce the occurrence of the sealing water breakage, and the numerical value of the sealing water depth of 50 mm or more and 100 mm or less prescribed by the Building Standard Law. Can be satisfied.

Further, in a third aspect based on the second aspect, the drainage piece has a handle portion formed so as to project upward, and in the state where the washing-side-side water sealing tube is attached, The drainage structure for a bathroom unit according to claim 1 or 2, wherein the upper part and the washing-side-side sealed cylinder are in contact with each other.
According to the drainage structure of this bathroom unit, the upper part of the handle and the wash-side-side water-sealing tube abut on each other, so that when a large amount of drainage flows into the wash-basin-side water storage part, Can be prevented. Further, the handle portion can be gripped by the user when the drainage piece is attached and detached, so that the operability is improved.

Embodiments of the present invention will be described below with reference to the drawings. In addition, in each drawing, the same code | symbol is attached | subjected to the same component and detailed description is abbreviate | omitted suitably.
1 to 3 relate to an embodiment of the present invention, FIG. 1 is a schematic cross-sectional view illustrating a drainage structure of a bathroom unit, and FIG. 2 is a schematic perspective view. FIG. 3 is a schematic perspective view illustrating the drainage piece.

  As shown in FIG. 1 and FIG. 2, the bathroom unit drainage structure 100 according to the embodiment of the present invention includes a washroom-side drainage section 120 provided on the washroom floor 110 side and a bathtub-side drainage provided on the bathtub side. Part 130 and bathtub drainage pipe part 135 capable of guiding the wastewater in bathtub side drainage part 130 into wash area side drainage part 120. The washing area side drainage section 120 is connected to a washing area side reservoir section 140 that is open at the top and can store water, and a downstream pipe 150 that discharges the water overflowing from the inside of the washing area side reservoir section 140 to the outside. The downstream pipe connecting part 160 and the overflow surface 165 of the washing place side water storage part 140 are detachably attached to the end part of the washing place side sealing pipe 170 capable of forming a sealed water and the bathtub drain pipe part 135. And a drainage piece 190 having a backflow prevention function for suppressing a large amount of drainage flowing into the drainage part 120 from flowing into the bathtub drainage pipe part 135 side. The bathtub-side drainage section 130 is open at the top, and the bathtub-side sealing cylinder 210 that can form a sealed water by the bathtub-side water storage section 200 that can store water and the overflow surface 165 of the washing-room-side water storage section 140. The drainage piece 190 is attached so that the movement in the horizontal direction is restricted and the movement in the vertical direction is possible in a state where the washing place side sealing tube 170 is removed.

  As shown in FIGS. 1 and 2, the washing floor 110 has an outer flange-shaped washing-place-side upper end 221, an inner-flange-shaped washing-place-side lower end 222, and a washing-place-side central cylinder 223. Is attached from the upper part of the wash-place side drain hole 112 formed in the wash-room floor 110. The lower surface of the washing area side upper end 221 sandwiches the periphery of the washing area side drain hole 112 of the drainage pit 111 formed at the lowermost part of the washing area floor 110 via the washing area side airtight packing, and the washing area side reservoir 140 is washed. It is squeezed and fixed to the floor 110. An outer flange 171 of the washing place side sealing tube 170 is engaged with the lower end 222 of the washing place, and the washing place side sealing tube 170 is supported. The washing-place-side sealing tube 170 is inserted into the washing-place-side water reservoir 140.

  On the bathtub-side waterproof pan 230 side, a bathtub-side mounting flange 240 having an outer flange-shaped bathtub-side upper end 241, an inner flange-shaped bathtub-side lower end 242, and a bathtub-side central cylinder 243 is disposed below the bathtub. The bathtub-side waterproof pan is attached to the bathtub-side drain hole 231 from above. The bathtub-side upper end 241 sandwiches the peripheral edge of the bathtub-side drain hole 231 formed at the lowermost part of the bathtub-side waterproof pan 230 via the bathtub-side airtight packing, and the bathtub-side reservoir 200 is connected to the bathtub-side waterproof pan 230. It is attached to. The bathtub-side lower end portion 242 is engaged with the outer flange 211 of the bathtub-side seal tube 210 and supports the bathtub-side seal tube 210. The bathtub-side sealing cylinder 210 is inserted into the bathtub-side water reservoir 200.

  On the side wall of the wash basin side reservoir 140, a wash basin side connection portion 180 is formed for connecting a bathtub drain pipe portion 135 that protrudes from the side wall of the bathtub side basin 200. And the washing-room side water storage part 140 and the bathtub side water storage part 200 are connected via the bathtub drainage pipe part 135. FIG. The bottom surface of the wash-basin side water reservoir 140, the bottom surface of the bathtub-side water reservoir 200, and the bottom surface of the bathtub drain pipe are disposed at substantially the same height.

  As shown in FIGS. 1 to 3, the drainage piece 190 is sandwiched by a sandwiching part 145 formed in the washing area side water storage part 140. The sandwiching part 145 is formed such that the washing place side water storage part 140 in the vicinity of the washing place connecting part 180 protrudes inward so as to sandwich the drainage piece main body side surface 191. Furthermore, in order to restrain the movement of the drainage piece 190 in the horizontal direction, the protruding tip is refracted toward the drainage piece 190 side. Thereby, the position shift of the horizontal direction of the drainage piece 190 by the waste_water | drain from the washroom side can be prevented. In addition, this clamping part 145 is not restrained to move in the vertical direction. The drainage piece 190 includes a drainage piece main body 192, a backflow prevention valve 193, and a handle portion 194. Since the drain piece piece 192 is a rectangular frame, it has an opening 195. The backflow prevention valve 193 is attached to the upper part of the opening 195 of the drainage piece main body 192. Since it is the same size as the opening 195 and has a film shape, the opening 195 can be covered. The handle portion 194 is integrally formed on the upper portion of the drainage piece main body 192. Since the through-hole 196 is formed in the handle portion 194, the drainage piece 190 can be easily held when the user cleans it, and can be held without slipping. Since the drainage piece 190 regarding this embodiment is not attached via the watertight member like the conventional drainage piece 310, removal and attachment of the drainage piece 190 are further facilitated.

  The drainage piece 190 has a backflow prevention function for suppressing a large amount of drainage flowing into the washing ground drainage section 120 from flowing into the bathtub drainage pipe section 135 side. The backflow prevention function here refers to a function that prevents the backflow prevention valve 193 of the drainage piece 190 from backflowing the wastewater from the washing place to the bathtub piping part 135. A handle part 194 formed integrally with the upper part of the drainage piece main body 192 is formed, and the upper part of the handle part 194 and the washing place side sealing tube 170 are in contact with each other. For this reason, the horizontal and vertical movements are restricted in a state where the washing area side sealing tube 170 is attached, and in a state where the washing area side sealing tube 170 is removed, the washing place side sealing tube 170 is attached so as to be movable in the vertical direction. ing. When the upper part of the handle part 194 and the washing station side water sealing tube 170 are in contact with each other reliably, when a large amount of drainage flows into the washing station side water storage part 140, it is possible to prevent the handle part 191 from being lifted by the flow of drainage. .

  Next, the flow of drainage in this embodiment will be described.

  If there is drainage from the washroom side or the bathtub side, drainage flows from the washroom side drainage inflow portion 260 to the washbasin side reservoir 140 and from the bathtubside drainage inflow portion 270 to the bathtubside reservoir 200, and the washroom The water level in the side reservoir 140 and the bathtub side reservoir 200 rises. When the water level rises from the rise of the downstream pipe 150, the drainage overflows and is drained from the downstream pipe 150. When a large amount of water is caused to flow from the washroom side drainage inflow portion 260, a large amount of water is drained from the downstream pipe 150, while part of the drainage passes through the bathtub drainage pipe portion 135 and the bathtub side water storage portion 200. The backflow is prevented by the backflow prevention valve 193 of the drainage piece 190 so as not to flow back into the bathtub.

  When drainage stops from the washing side or the bathtub side and the water level drops from the rise of the downstream pipe 150, drainage from the downstream pipe 150 stops. When drainage from the washing station side or the bathtub side is not performed, the water level of the washing station side water storage unit 140 and the bathtub side water storage unit 200 is kept higher than the lower ends of the washing station side water storage tube 170 and the bathtub side water storage tube 210. Be drunk. Thereby, sealing water is ensured and the odor from the downstream pipe 150 on the sewage side can be blocked and the invasion of insects and the like can be prevented. In addition, the sealing depth formed by the sealing surface of the wash-basin-side water reservoir 140 and the lower end of the wash-basin-side water seal 170, the sealing surface of the bathtub-side water reservoir 200 and the lower end of the bathtub-side water-sealing tube 210 is secured at least 50 mm or more. ing. Thereby, it is possible to reduce the occurrence of running out of sealing water.

  As shown in FIG. 4, the drainage piece 310 of the conventional drainage trap 300 is watertightly attached to the end of the bathtub drainage pipe part 330 that connects the bathtub drainage port 320 and the drainage trap 300 on the drainage trap 300 side. Since the sealing depth 360 of the drainage part 340 formed from the lower end 370 of the sealing depth 360 of the drainage part 340 and the overflow surface 390 must be ensured, it must be inserted in a watertight manner without fail. When watertightness is not ensured, the lower end 370 of the sealing depth 360 of the drainage part 340 becomes the upper part of the bathtub drainage pipe part 330, and the sealing depth 360 of the drainage part 340 cannot be ensured at least 50 mm or more. Since the drainage piece is inserted in a watertight manner in this manner, there has been a problem that it is difficult to remove and attach when the user cleans.

  However, according to the embodiment of the present invention, the bathtub-side water reservoir 200 can secure at least 50 mm or more of the sealing depth 360 of the drainage portion 340 formed from the lower end 370 of the sealing depth 360 of the drainage portion 340 and the overflow surface 390. Therefore, unlike the drainage piece 310 of the conventional drainage trap 300, it is not necessary to ensure the lower end 370 of the sealing depth 360 of the drainage part 340 on the bathtub side. Thus, since it is not necessary to ensure water tightness as in the case of the conventional drainage piece 310, the drainage piece 190 is not attached via a watertight member, and the washing place side connection part 180 is connected to the washing place side water reservoir. It is detachably attached so as to cover from the 140 side. Therefore, it is possible to provide the drainage structure 100 for a bathroom unit that makes it possible to easily attach and detach the drainage piece 190 having the backflow prevention valve 193 and sufficiently secure the sealing depth in the drainage part on the bathtub side.

It is a typical sectional view which illustrates the drainage structure of the bathroom unit concerning an embodiment. It is a typical perspective view which illustrates the drainage structure of the bathroom unit which concerns on embodiment. It is a typical perspective view which illustrates the drainage piece which concerns on embodiment. It is typical sectional drawing which illustrates the conventional drainage piece.

Explanation of symbols

100 Drainage structure of bathroom unit, 111 Drainage pit, 112 Washing area side drainage hole, 110 Washing area floor, 120 Washing area side drainage section, 130 Bathtub side drainage section, 135 Bathtub piping section, 140 Washing area side drainage section, 145 Clamping section, 150 Downstream piping, 160 Downstream piping connection, 165 Overflow surface, 170 Washing station side sealing tube, 171 Outer flange of the washing station side sealing tube, 180 Washing station connection, 190 Drainage piece, 191 Drainage piece body side, 192 Drainage piece body, 193 Backflow Prevention valve, 194 handle part, 195 opening part, 196 through hole, 200 bathtub side water storage part, 210 bathtub side sealing cylinder, 211 outer flange of bathtub side sealing cylinder, 220 washing place side mounting flange, 221 washing place side upper end, 222 Laundry side lower end, 223 Laundry side center tube, 230 Bath side waterproof pan 231 Bath-side drain hole, 240 Bathroom-side mounting flange, 241 Bath-side upper end, 242 Bath-side lower end, 243 Bath-side central tube, 250 Bath-side connection, 260 Washing-room-side drain inflow, 270 Bath-side drain inflow , 300 Drain trap, 310 Drain piece, 320 Bath drain, 330 Bath drain pipe, 340 Drain, 350 Drain trap seal depth, 360 Drain seal depth, 370 Drain bottom seal depth, 380 Drain trap 390 overflow surface

Claims (3)

A drainage section on the washroom side provided on the floor of the washroom;
A bathtub-side drainage section provided on the bathtub side;
A bathtub drainage pipe part capable of guiding the wastewater in the bathtub side drainage part into the washroom side drainage part, and a drainage structure of a bathroom unit comprising:
The washing area side drainage section is
The wash-basin-side water reservoir that is open at the top and can store water,
A downstream pipe connecting part to which a downstream pipe for discharging the water overflowing from the water storage part on the washing place side is connected to the outside;
A washing-side water-sealing cylinder capable of forming a sealed water with the overflow surface of the washing-site-side water storage section;
A drainage piece that is detachably attached to an end of the bathtub drainage pipe part, and has a backflow prevention function for suppressing a large amount of drainage flowing into the washing ground side drainage part from flowing into the bathtub drainage pipe part side, With
The bathtub drainage section is
A bathtub-side water reservoir that is open at the top and can store water;
A bathtub-side water seal capable of forming a sealed water with the overflow surface of the washing area-side water storage section,
A drainage structure for a bathroom unit, wherein the drainage piece is attached so that movement in a horizontal direction is restricted, and movement in a vertical direction is possible in a state where a washing place side sealing tube is removed. The sealed water depth formed by the lower end of the said washing place side water seal cylinder and the said bathtub side water seal cylinder, and the overflow surface of the said wash place side water storage part is each ensured at least 50 mm or more. The drainage structure of the bathroom unit. The drainage piece is formed with a handle portion that protrudes upward,
3. The vertical movement is restrained by contacting the upper part of the handle and the washing station side sealing cylinder in a state where the washing station side sealing cylinder is attached. The drainage structure of the bathroom unit described.

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