JP2021071021A - Water drain device and installation method thereof - Google Patents

Abstract

To provide a water drain device that can be intentionally operated to drain water.SOLUTION: A water drain device 10 which is connected to a water channel leading from a faucet body S1 to a hand shower comprises a water pipe 20 that is connected to the water channel, a bag nut 30 formed on one end of the water pipe 20 and freely connected to the water channel on the faucet body side, a male threaded portion 40 formed on the other end of the water pipe 20 that can be connected to the water channel on the hand shower side, an opening 53 that connects the water channel to the outside, and a pushbutton 60 that opens and closes the opening 53 and can be operated from a closed state to an open state by an external operating force.SELECTED DRAWING: Figure 5

Description

The present disclosure relates to a drainage device and a method of attaching the drainage device.

Patent Document 1 discloses a drainage mechanism for discharging the water remaining inside the shower head to the outside. This drainage mechanism is arranged in the water passage leading from the faucet to the shower head. When water is discharged from the shower head, the drainage mechanism elastically deforms itself and closes the drainage channel leading to the outside. When the faucet is stopped, the drainage mechanism elastically deforms itself to open the drainage channel and discharge the water in the water passage to the outside.

Japanese Unexamined Patent Publication No. 2003-74095

After using the shower device, the user or the like may wipe the washing area or bathtub dry in order to keep the bathroom hygienic. However, if water remains inside the shower head, the water may expand due to changes in the ambient temperature, or vibration from the outside may be applied to the water, causing the water to drip from the shower head to a washing place or the like. .. For this reason, the user and the like have confirmed that no water remains inside the shower head. The drainage mechanism of Patent Document 1 automatically drains water when the discharge from the shower head is stopped, so that the user may feel uncomfortable with the unexpected drainage or mistake it for a failure. is there. In addition, since it is difficult for the user to recognize that the water has been drained, the water may be drained from the inside of the shower head again when cleaning.

In view of such circumstances, it is an object of the present disclosure to provide a drainage device capable of intentionally draining water.

The water draining device of the present disclosure is a water draining device connected to a water pipe leading from a faucet to a shower head, and is connected to a water passage portion communicating with the water passage of the water pipe and one end side of the water passage portion. A faucet side connection portion that is formed and can be connected to the water pipe on the faucet side, and a shower head side connection that is formed on the other end side of the water passage portion and can be connected to the water pipe on the shower head side. It is provided with a portion, an opening for communicating the water passage and the outside, and an opening / closing member that opens and closes the opening and can be operated from a closed state to an open state by receiving an operating force from the outside.

The whole view of the shower apparatus which attached the drainage apparatus which concerns on Embodiment 1. It is a view of the shower device from the back side, and is a partially enlarged view of the shower device which shows the part where the drainage device is attached. External view of the drainage device. The cross-sectional view of the drainage device which shows the state which the on-off valve body is closed. Sectional drawing of the drainage device which shows the state which the on-off valve body is open. The front view of the drainage device which shows the state which the fastening member and the on-off valve unit are omitted with the branch pipe side as the front. FIG. 2 is a cross-sectional view of the drainage device according to the second embodiment, showing a state in which the on-off valve body is closed.

<Embodiment 1>
Next, the drainage device 10 according to the first embodiment will be described with reference to the drawings. As shown in FIG. 1, the drainage device 10 is attached to the shower device S installed in the bathroom. The bathroom P is provided with a bathtub P1 and a counter P2 on the wall surface on the washing place side. The shower device S is installed on the wall surface above the counter P2. The shower device S includes a faucet main body S1, a shower hose S2, a shower hook S3, and a hand shower S4.

The hand shower S4 corresponds to the shower head. The hand shower S4 has a watering surface S41 in which a plurality of watering holes are formed. The hand shower S4 is detachably held by the shower hook S3. The hand shower S4 is connected to the shower hose S2. The shower hose S2 has flexibility, and a water passage (not shown) is formed inside the shower hose S2. The hand shower S4 discharges the mixed water supplied from the faucet main body S1 from the watering hole of the watering surface S41 via the shower hose S2.

As shown in FIG. 2, the faucet main body S1 has a pair of crank legs S11, a main body portion S12, a temperature control handle S13, a spout water stop switching handle S14, a curan S15, and a shower hose connection pipe S16. ing. One end of the pair of crank legs S11 is connected to a water supply pipe and a hot water supply pipe provided on the wall surface of the bathroom, and the other end is connected to the main body S12. The water supply pipe is connected to the water supply source. The hot water supply pipe is connected to the hot water supply source. A water passage (not shown) is formed inside the crank leg S11, and the water supplied from the water supply pipe and the hot water supplied from the hot water supply pipe are supplied to the main body S12 through the water passage.

The main body S12 has a substantially cylindrical appearance. Inside the main body S12, a mixing valve for mixing hot water and water (not shown) and a switching valve for switching the supply path for supplying the mixed water to the curan S15 or the hand shower S4 and adjusting the flow rate of the mixed water are accommodated. ing.

Similar to the main body S12, the temperature control handle S13 has a cylindrical appearance, and a plurality of protrusions S131 project from the peripheral surface. As shown in FIG. 1, the temperature control handle S13 is arranged on the left side of the main body S12 in the front view. The temperature control handle S13 is connected to a mixing valve (not shown) housed in the main body S12. The temperature control handle S13 is rotatable in the circumferential direction. When adjusting the discharge temperature, the user who uses the shower device S grips the temperature adjusting handle S13 and rotates the protrusion S131 as a finger hook.

Similar to the main body S12, the discharge water stop switching handle S14 has a cylindrical appearance, and the knob S141 projects in the horizontal direction from the peripheral surface. The discharge water stop switching handle S14 is arranged on the right side of the main body portion S12 in the front view. The discharge stop water switching handle S14 is connected to the switching valve of the main body S12. The discharge water stop switching handle S14 is rotatable in the circumferential direction. When the knob S141 of the discharge water stop switching handle S14 is oriented horizontally, the shower device S is in the water stop state. When the user using the shower device S discharges the mixed water from the curan S15, the user rotates the discharge stop water switching handle S14 so that the knob S141 faces downward, and discharges the mixed water from the hand shower S4. In this case, the water discharge stop switching handle S14 is rotated so that the knob S141 faces upward.

The curan S15 has a tube shape in which the upper surface and the lower surface extend flat. The curan S15 has a water passage (not shown) formed inside. The curan S15 has a connecting portion S151 rotatably connected to the lower side of the main body portion S12 on the upper surface on one end side. The connecting portion S151 is connected to a water passage (not shown) formed inside the main body portion S12. The curan S15 has a discharge port S152 on the lower surface on the other end side. The discharge port S152 discharges the mixed water supplied from the main body S12.

As shown in FIG. 2, the shower hose connecting pipe S16 has an L-shaped curved appearance. The shower hose connecting pipe S16 is formed with a water passage (not shown) inside. One end of the shower hose connection pipe S16 is rotatably connected to the back side of the main body S12, and is connected to the water passage of the main body S12. The intermediate portion of the shower hose connecting pipe S16 is bent downward. The shower hose connecting pipe S16 has a male screw (not shown) formed on the outer peripheral surface on the other end side. The male screw of the shower hose connection pipe S16 has a shape that can be screwed into the connection portion S21 arranged on one end side of the shower hose S2, and has the same shape as the male screw portion 40 of the drainage device 10. As shown in FIG. 2, the male screw of the shower hose connecting pipe S16 is connected to the bag nut 30 of the drainage device 10.

As shown in FIG. 3, the drainage device 10 includes a water pipe 20, a bag nut 30, a male screw portion 40, a branch pipe 50, and a push button 60. The water pipe 20 corresponds to the water passage portion. The water pipe 20 has a cylindrical appearance and a linearly extending pipe shape.

The bag nut 30 corresponds to the faucet side connection portion. The bag nut 30 is arranged on one end side of the water pipe 20. As shown in FIG. 4, the bag nut 30 has a female screw portion 31 formed on the inner circumference thereof. As described above, the female screw portion 31 has a shape that can be screwed with the male screw of the shower hose connection pipe S16, and has the same shape as the connection portion S21 on one end side of the shower hose S2. The bag nut 30 is rotatably connected to the water pipe 20 via a connecting member 32 attached to the inside of the water pipe 20.

The connecting member 32 has a cylindrical tube shape. One end side of the connecting member 32 is inserted inside the bag nut 30 and holds the bag nut 30 rotatably. The other end side of the connecting member 32 is inserted inside the water pipe 20, and three annular grooves are formed on the outer peripheral surface. The three grooves accommodate the water-stopping O-ring 33, the protective O-ring 34, and the connecting C-ring 35 in this order from the central side to the one end side.

The water-stopping O-ring 33 has a function of watertightly holding between the inner circumference of the water pipe 20 and the outer circumference of the connecting member 32. When dust enters from the end of the water pipe 20, the protective O-ring 34 removes dust in order to prevent the dust from reaching the water-stopping O-ring 33 and damaging the water-stopping O-ring 33. It has a damming function. The connecting C ring 35 can be elastically deformed in the radial direction, and fits across the annular groove formed on the inner circumference of the water pipe 20 and the annular groove formed on the outer circumference of the connecting member 32. The connecting C-ring 35 has a function of making the connecting member 32 rotatable with respect to the water pipe 20 and preventing the connecting member 32 from coming off.

The male screw portion 40 corresponds to the shower head side connection portion. The male screw portion 40 is located on the other end side of the water pipe 20 and is formed on the outer peripheral surface of the water pipe 20. The male screw portion 40 has a shape that can be screwed and connected to the connection portion S21 on one end side of the shower hose S2, and has the same shape as the male screw of the shower hose connection pipe S16 as described above.

The branch pipe 50 corresponds to the branch portion. The branch pipe 50 extends from the intermediate portion of the water pipe 20 in a direction orthogonal to the pipe axis of the water pipe 20. The branch pipe 50 has a male screw 51 formed on the outer peripheral surface on the terminal side. A fastening member 52 is screwed and fixed to the male screw 51 of the branch pipe 50. The fastening member 52 has a function of holding the on-off valve unit 70, which will be described later, inside the branch pipe 50. The fastening member 52 has an opening 53 formed on the surface thereof. The opening 53 communicates with the inside of the branch pipe 50. As shown in FIG. 6, the branch pipe 50 has a flat flat portion 54 formed in the upper, lower, left, and right portions indicated by the alternate long and short dash line in the cylindrical appearance. The size of the branch pipe 50 in the left-right direction is the same as the outer diameter of the water pipe 20.

The push button 60 corresponds to an operating member. As shown in FIG. 3, the push button 60 has an operation surface 61 and an insertion portion 62. The operation surface 61 has a disk shape. The front side of the operation surface 61 is a surface that the user pushes in when draining water from the water pipe 20. The insertion portion 62 has a shape extending in a rod shape from the back side of the operation surface 61. The tip of the insertion portion 62 is inserted through the opening 53 of the fastening member 52 when draining water from the water pipe 20, and is detachably in contact with the recess 78 of the on-off valve body 73, which will be described later. The push button 60 is removed from the on-off valve body 73 and stored when the water draining operation is not performed, such as when the shower device S is used.

As shown in FIG. 4, the water pipe 20 has a water passage 21 formed therein. When the drainage device 10 is connected to the shower device S, the water passage 21 communicates with the water passage leading from the faucet main body S1 to the hand shower S4, and mixed water flows. The branch pipe 50 has a branch path 55 formed inside. The base end side of the branch road 55 communicates with the water passage 21. In the branch passage 55, when water is drained from the water pipe 20, the water in the water passage 21 flows. The branch pipe 50 houses the on-off valve unit 70 inside.

The on-off valve unit 70 includes a storage member 71, a lid member 72, an on-off valve body 73, and a spring member 74. The storage member 71 houses the on-off valve body 73 and the spring member 74 inside. An opening is formed in the outer shell portion of the storage member 71. The inside of the storage member 71 communicates with the branch path 55 through an opening and is filled with water. The lid member 72 has a ring shape. The outer peripheral side of the lid member 72 is fitted with the storage member 71, and the on-off valve body 73 and the spring member 74 are held inside the storage member 71. The lid member 72 has a valve seat portion 75 on which the O-ring of the on-off valve body 73 is seated on the inner peripheral surface.

The on-off valve body 73 corresponds to an on-off member. The on-off valve body 73 has a valve portion 76 and a shaft portion 77. The valve portion 76 has a disk shape. The valve portion 76 is formed with an annular groove on the outer periphery that holds the O-ring. The valve portion 76 has a recess 78 having a concave center on the front side. The recess 78 faces the outside through the opening 53 of the fastening member 52, and is always located on the back side of the opening 53. The recess 78 corresponds to the operated portion. The recess 78 comes into contact with the insertion portion 62 of the push button 60 described above. The shaft portion 77 has a shape extending from the bottom surface 761 of the valve portion 76 in the same direction as the branch path 55. The direction in which the shaft portion 77 extends is the same as the direction in which the on-off valve body 73 moves when the on-off valve body 73 is opened and closed, and is the left-right direction in FIG. The shaft portion 77 is slidably inserted into the cylindrical holding portion 79 formed in the storage member 71.

The recess 78 of the valve portion 76 is open to the atmosphere through the opening 53 of the fastening member 52. On the other hand, the shaft portion 77 exists in the water filled inside the storage member 71. Therefore, the bottom surface 761 of the valve portion 76 and the end surface 771 of the shaft portion 77 remain in the flow pressure of water flowing through the water passage leading from the faucet body S1 to the hand shower S4 and in the water passage of the hand shower S4 and the shower hose S2. It becomes a pressure receiving surface that receives the head pressure of the water, and the on-off valve body 73 receives the water pressure so as to be in a state of being seated on the valve seat portion 75, that is, in a closed state.

The spring member 74 corresponds to an elastic member. The spring member 74 is a coil spring. The spring member 74 is arranged so as to surround the outer circumference of the shaft portion 77. The spring member 74 constantly applies an elastic force to the on-off valve body 73 in the direction in which the on-off valve body 73 closes due to its own elastic force.

Next, the operation method of the drainage device 10 will be described. First, as shown in FIG. 1, the user attaches the hand shower S4 to the shower hook S3 and arranges the hand shower S4 at a position higher than the drainage device 10. Next, as shown in FIG. 5, the user inserts the insertion portion 62 of the push button 60 into the opening 53 from the direction of the large arrow shown on the right side of FIG. The tip of the insertion portion 62 abuts on the recess 78 of the on-off valve body 73. Next, when the user pushes the operation surface 61 of the push button 60 in the direction in which the insertion portion 62 is inserted, the on-off valve body 73 is subjected to the water pressure of water in the water passage 21 and the branch passage 55, and the spring member. It is separated from the valve seat portion 75 against the elastic force of 74, and changes from a closed state to an open state. When the on-off valve body 73 is open, the branch path 55 communicates with the outside through the on-off valve unit 70 and the opening 53. Then, the water in the water passage leading from the hand shower S4 to the shower hose S2 flows out from the hand shower S4 toward the drainage device 10 due to its own head pressure, as shown by the thin arrow in FIG. 5, and is an on-off valve. It flows between the body 73 and the valve seat portion 75, between the lid member 72 and the insertion portion 62, and is discharged to the outside through the opening 53. The water discharged to the outside drips from the gap between the surface of the fastening member 52 and the back side of the operation surface 61 to the washing place. When it is desired to prevent water from dripping into the washing place, the user can perform this draining operation while pressing the push button 60 and the fastening member 52 with a towel.

Next, when the user pulls out the insertion portion 62 of the push button 60 from the opening 53, the on-off valve body 73 is automatically driven by the water pressure of the water remaining inside the shower hose S2 and the elastic force of the spring member 74. It sits on the valve seat 75 and changes from an open state to a closed state. This makes it possible to prevent the mixed water from leaking from the opening 53 when the shower device S is used.

The amount of water discharged from the shower device S to the outside varies depending on the time when the user pushes the push button 60, the relationship between the height positions of the hand shower S4 and the drainage device 10, and the opening of the drainage device 10. It also changes depending on the orientation of the part 53. Further, the drainage device 10 cannot discharge all the water in the water passage leading from the faucet main body S1 to the hand shower S4. However, if the water draining device 10 can discharge the water drainage device 10 to the extent that no water remains in the vicinity of the sprinkler hole in the water passage inside the hand shower S4 in a state where the hand shower S4 is attached to the shower hook S3, the hand shower S4 It is possible to prevent water from leaking from the sprinkler hole.

Next, a method of attaching the drainage device 10 will be described. In a state where the drainage device 10 is not attached to the shower device S, the male screw of the shower hose connection pipe S16 is screwed and connected to the connection portion S21 of the shower hose S2. First, the operator loosens and separates the male screw of the shower hose connecting pipe S16 from the connecting portion S21 of the shower hose S2. This method corresponds to a method of disassembling the connection portion between the water pipe on the faucet side and the water pipe on the shower head side.

Next, the operator screwes the bag nut 30 of the drainage device 10 into the male screw of the shower hose connection pipe S16 to connect the bag nut 30. This method corresponds to the method of connecting the faucet side connection portion to the water pipe on the faucet side. At this time, the operator can hang a tool or a finger on the flat portion 54 of the branch pipe 50, and the connection work is easy.

Next, the operator screwes and connects the male screw portion 40 of the drainage device 10 to the connecting portion S21 of the shower hose S2. This method corresponds to the method of connecting the shower head side connection portion to the water pipe on the shower head side. As a result, the water passage 21 of the drainage device 10 becomes a part of the water passage leading from the faucet main body S1 to the hand shower S4.

<Embodiment 2>
Next, the drainage device 100 according to the second embodiment will be described with reference to the drawings. The parts having the same functions as those in the first embodiment are designated by the same reference numerals as those in the first embodiment in the drawings, and detailed description thereof will be omitted. As shown in FIG. 7, the drainage device 100 includes a water pipe 200, a male threaded portion 300 on the faucet body side, a male threaded portion 400 on the shower hose side, a branch pipe 500, and a push button 600.

The water pipe 200 corresponds to the water passage portion. The water pipe has an L-shaped curved appearance. A water passage 210 is formed inside the water pipe 200. The water passage 210 can communicate with the water passage of the faucet main body S1 and the water passage of the shower hose S2.

The male threaded portion 300 on the faucet body side corresponds to the connecting portion on the faucet side. The male threaded portion 300 on the faucet body side is located on one end side of the water pipe 200 and is formed on the outer peripheral surface of the water pipe 200. The male threaded portion 300 on the faucet body side has a shape that can be screwed into a portion of the main body S12 of the faucet main body S1 shown in FIG. 2 to be connected to the shower hose connecting pipe S16. The male screw portion 300 on the faucet main body side can be rotatably connected to the main body portion S12.

The shower hose side male screw portion 400 corresponds to the shower head side connection portion. The shower hose side male screw portion 400 is located on the other end side of the water pipe 200 and is formed on the outer peripheral surface of the water pipe 200. The shower hose side male screw portion 400 has a shape that can be screwed and connected to the connection portion S21 on one end side of the shower hose S2.

The branch pipe 500 corresponds to the branch portion. As shown in FIG. 7, the branch pipe 500 extends from a bent portion of the intermediate portion of the water pipe 200. The branch pipe 500 extends on the same pipe shaft as the water pipe 200 in which the male screw portion 400 on the shower hose side is formed. Similar to the first embodiment, the branch pipe 500 houses the on-off valve unit 70 inside, and the fastening member 52 is screwed and fixed to the terminal side.

The push button 600 has an operation surface 610 and an insertion portion 620. The operation surface 610 is located at a position exposed from the opening 53 of the fastening member 52. The tip of the insertion portion 620 is integrally formed with the on-off valve body 73 of the on-off valve unit 70. The on-off valve body 73 corresponds to an on-off member.

Next, the operation method of the drainage device 100 will be described. First, as shown in FIG. 1, the user attaches the hand shower S4 to the shower hook S3 and arranges the hand shower S4 at a position higher than the drainage device 100. Next, when the user pushes the operation surface 610 of the push button 600, the on-off valve body 73 is also pushed in the same manner, and the on-off valve body 73 changes from the closed state to the open state. Then, the water in the water passage leading from the hand shower S4 to the shower hose S2 is discharged to the outside from the opening 53 due to its own head pressure.

Next, a method of attaching the drainage device 100 will be described. First, the operator loosens and separates one end side of the shower hose connecting pipe S16 from the connecting portion S21 of the shower hose S2. Next, the operator loosens and separates the main body S12 of the faucet main body S1 and the other end side of the shower hose connecting pipe S16. These methods correspond to the method of disassembling the connection portion between the water pipe on the faucet side and the water pipe on the shower head side.

Next, the operator screwes and connects the male screw portion 300 on the faucet body side of the water draining device 100 to the main body portion S12 of the faucet main body S1. This method corresponds to the method of connecting the faucet side connection portion to the water pipe on the faucet side.

Next, the operator screwes and connects the shower hose side male screw portion 400 of the drainage device 100 to the connection portion S21 of the shower hose S2. This method corresponds to the method of connecting the shower head side connection portion to the water pipe on the shower head side. As a result, the water passage 210 of the drainage device 100 becomes a part of the water passage leading from the faucet main body S1 to the hand shower S4.

<Actions and effects of Embodiment 1 and Embodiment 2>
Next, the actions and effects of the first and second embodiments will be described. The drainage devices 10 and 100 are connected as a part of a water passage leading from the faucet main body S1 to the hand shower S4 head. The drainage device 10 includes a water passage pipe 20 in which a water passage of the shower hose connecting pipe S16 and a water passage 21 communicating with the water passage of the shower hose S2 are formed. The drainage device 10 includes a bag nut 30 that can be connected to the male screw of the shower hose connecting pipe S16, and a male screw portion 40 that can be connected to the connecting portion S21 of the shower hose S2. The drainage device 100 includes a water pipe 200 provided with a water passage of the faucet main body S1 and a water passage 210 communicating with the water passage of the shower hose S2. The drainage device 100 includes a faucet main body side male screw portion 300 that can be connected to the main body S12 of the faucet main body S1 and a shower hose side male screw portion 400 that can be connected to the connection portion S21 of the shower hose S2. .. As a result, the drainage devices 10 and 100 can be easily attached to the shower device S installed in the bathroom. Further, the drainage devices 10 and 100 can be operated from a closed state to an open state by opening and closing an opening 53 and an opening 53 that communicate the water passages 21 and 210 with the outside and receiving an operating force from the outside. The on-off valve body 73 is provided. As a result, the drainage devices 10 and 100 do not discharge the water in the water passage 21 to the outside unless the user intentionally operates the on-off valve body 73. Therefore, the user can intentionally perform the draining operation by using the draining devices 10 and 100.

The on-off valve body 73 of the drainage devices 10 and 100 has a valve portion 76 and a shaft portion 77 that receive the water pressure of water in the water passages 21 and 210 in the closing direction. As a result, the drainage devices 10 and 100 can prevent water from leaking from the opening 53 when the shower device S is used. Therefore, the drainage devices 10 and 100 do not discharge the water in the water passages 21 and 210 to the outside unless the user intentionally performs the drainage operation. Further, in the water draining devices 10 and 100, the on-off valve body 73 is not in the open state from the time when the shower device S is used until the water draining operation is performed. As a result, the drainage devices 10 and 100 can prevent water, detergent, and the like from entering the inside through the opening 53. Therefore, the drainage devices 10 and 100 can keep the shower device S hygienic.

The on-off valve unit 70 of the drainage devices 10 and 100 has a spring member 74 that always applies an elastic force in the closing direction. As a result, the drainage devices 10 and 100 can prevent water from leaking from the opening 53 not only when the shower device S is used but also when the shower device S is not used. Therefore, the drainage devices 10 and 100 do not discharge the water in the water passages 21 and 210 to the outside unless the user intentionally performs the drainage operation. Further, the water draining devices 10 and 100 do not open the on-off valve body 73 when the water draining operation is not performed. As a result, the drainage devices 10 and 100 can prevent water, detergent, and the like from entering the inside through the opening 53. Therefore, the drainage devices 10 and 100 can keep the shower device S hygienic.

The drainage devices 10 and 100 include branch pipes 50 and 500 that branch off and extend from the water pipes 20 and 200. The fastening member 52 is fixed to the terminal side of the branch pipes 50 and 500. The fastening member 52 has an opening 53 formed on the surface thereof. As a result, the drainage devices 10 and 100 can easily form an opening 53 for discharging the water in the water passages 21 and 210 to the outside.

The on-off valve unit 70 of the drainage devices 10 and 100 is housed inside the branch pipes 50 and 500. As a result, it is not necessary to arrange a member for opening and closing the opening 53 inside the water pipes 20 and 200, and the water flow is obstructed in the water passage leading from the faucet main body S1 to the hand shower S4, resulting in pressure loss. There is no such member. Therefore, even if the drainage devices 10 and 100 are connected as a part of the water passage leading from the faucet main body S1 to the hand shower S4, the user can use the same as when the drainage devices 10 and 100 are not connected. The shower device S can be used satisfactorily.

The water pipe 20 of the drainage device 10 is rotatable with respect to the bag nut 30 about the direction in which the water pipe 20 extends. As a result, when the shower device S is used, even if the shower hose S2 is twisted, the water pipe 20 can also rotate, and the bag nut 30 can be prevented from loosening. Therefore, the drainage device 10 can maintain a good connection with the shower device S. In addition, the user can adjust the orientation of the opening 53 by rotating the water pipe 20 when the water draining device 10 is attached or when the water draining operation is performed. Therefore, the user can easily perform the installation work and the drainage operation. Further, the user can rotate the water pipe 20 so that the opening 53 of the drainage device 10 faces the wall surface on which the faucet body S1 is installed, and when using the shower device S, the user can drain water. The device 10 can be made inconspicuous. Therefore, the drainage device 10 can prevent the user from accidentally performing the drainage operation.

The on-off valve body 73 of the drainage device 10 has a recess 78 that receives an operating force on the back side of the opening 53. As a result, the user does not touch the on-off valve body 73 even if he / she touches the appearance of the drainage device 10 when using or cleaning the shower device S. Therefore, the drainage device 10 does not discharge the water in the water passage 21 to the outside unless the user intentionally performs the drainage operation.

The drainage device 10 includes a push button 60. The push button 60 can be operated from the closed state to the open state of the on-off valve body 73 in contact with the recess 78. As a result, the user can open the on-off valve body 73 located behind the opening 53 by using the push button 60. Further, the push button 60 is detachable from the on-off valve body 73. As a result, the user can store the push button 60 away from the shower device S, and the drain device 10 accidentally touches the push button 60 to drain water when the user uses the shower device S. It is possible to prevent the operation. Therefore, the water draining device 10 does not discharge the water in the water passage 21 to the outside unless the user intentionally uses the push button 60 to perform the water draining operation.

The push button 60 of the drainage device 10 has an insertion portion 62 that is inserted through the opening 53 and comes into contact with the recess 78. As a result, the user can open the on-off valve body 73 located behind the opening 53 by using the push button 60. Further, the drainage device 10 can have both a function of discharging water to the outside and a function of operating the on-off valve body 73 in an open state in one opening 53, in order to achieve each function. It is not necessary to form a plurality of openings. Therefore, the drainage device 10 can discharge water to the outside with a simple structure. Further, when it is desired to prevent water from dripping into the washing place, the user can perform a water draining operation by pushing the push button 60 while pressing the push button 60 and the fastening member 52 with a towel. Therefore, the drainage device 10 can easily perform the drainage operation.

The on-off valve body 73 of the drainage device 100 is integrated with the push button 600. As a result, the user does not need to store the push button 600 separately from the shower device S, and can immediately perform the water draining operation when he / she wants to drain water. Therefore, the drainage device 100 can easily perform the drainage operation.

The drainage device 10 can be attached to the shower device S installed in the bathroom. First, the operator loosens and separates the male screw of the shower hose connecting pipe S16 from the connecting portion S21 of the shower hose S2. Next, the operator screwes the bag nut 30 of the drainage device 10 into the male screw of the shower hose connection pipe S16 to connect the bag nut 30. Next, the operator screwes and connects the male screw portion 40 of the drainage device 10 to the connecting portion S21 of the shower hose S2. As a result, the water passage 21 of the drainage device 10 becomes a part of the water passage leading from the faucet main body S1 to the hand shower S4. Therefore, even if the drainage device 10 is attached to the shower device S, the user can use the shower device S satisfactorily as in the case where the drainage device 10 is not attached. Further, by attaching the water draining device 10 to the shower device S, it is possible to add a function of intentionally draining water from the shower device S installed in the bathroom.

The drainage device 100 can be attached to the shower device S installed in the bathroom. First, the operator loosens and separates one end side of the shower hose connecting pipe S16 from the connecting portion S21 of the shower hose S2. Next, the operator loosens and separates the main body S12 of the faucet main body S1 and the other end side of the shower hose connecting pipe S16. Next, the operator screwes and connects the male screw portion 300 on the faucet body side of the water draining device 100 to the main body portion S12 of the faucet main body S1. Next, the operator screwes and connects the shower hose side male screw portion 400 of the drainage device 100 to the connection portion S21 of the shower hose S2. As a result, the water passage 210 of the drainage device 100 becomes a part of the water passage leading from the faucet main body S1 to the hand shower S4. Therefore, even if the drainage device 100 is attached to the shower device S, the user can use the shower device S satisfactorily as in the case where the drainage device 100 is not attached. Further, by attaching the water draining device 100 to the shower device S, it is possible to add a function of intentionally draining water from the shower device S installed in the bathroom.

<Other Embodiments>
The present disclosure is not limited to the first and second embodiments described by the above description and drawings, and the following embodiments are also included in the technical scope of the invention.
(1) The drainage device 10 is connected to the connection portion between the shower hose connection pipe S16 and the shower hose S2, and the drainage device 100 is replaced with the shower hose connection pipe S16 by the main body S12 and the shower hose S2. Although it is connected to the connection part with, it may be connected to any part of the water passage pipe leading from the faucet body S1 to the hand shower S4, and even if it is connected to the connection part between the shower hose S2 and the hand shower S4. Good.
(2) The drainage devices 10 and 100 are connected to the shower device S provided with the hand shower S4, but are connected to the shower device equipped with an overhead shower fixed near the ceiling of the bathroom, and overhead from the faucet. The water in the water passage leading to the shower may be discharged to the outside.
(3) The drainage devices 10 and 100 are screwed and connected to the shower device S, but the connection structure is not limited to screws, and even if a fixing clip capable of elastic deformation is fitted from the outside and connected. Alternatively, it may be connected by fixing with screws.
(4) The drainage devices 10 and 100 include branch pipes 50 and 500, but may not include branch pipes 50 and 500. In this case, the opening 53 is formed on the outer peripheral surfaces of the water pipes 20 and 210. Further, the on-off valve body 73 is housed in the water passages 21 and 210.
(5) The male screw portion 40 of the drainage device 10 cannot rotate with respect to the water pipe 20, but may be rotatable with respect to the water pipe 20 like the bag nut 30.
(6) The drainage device 10 is provided with a push button 60 dedicated to the drainage operation, but the user uses a general-purpose tool such as a flat-blade screwdriver to change the on-off valve body 73 from the closed state to the open state. Can be operated.
(7) The drainage devices 10 and 100 include an on-off valve unit 70, but the opening 53 is closed by fixing a screw to the opening 53 from the outside so that the opening 53 can be opened and closed. May be good. In this case, the screw itself is an opening / closing member. The user can open the opening 53 and drain water by loosening the screw with respect to the opening 53 or removing the screw from the opening 53.
(8) Although the drainage devices 10 and 100 are connected to the shower device S installed in the bathroom in advance, they may be connected to the shower device S before being installed in the bathroom from the beginning.
(9) The drainage devices 10 and 100 discharge the water in the water passages 21 and 210 to the outside through the opening 53, but an operation method of draining the water by taking in the outside air from the opening 53 is also possible. In this case, first, the user removes the hand shower S4 from the shower hook S3, and arranges the hand shower S4 and the shower hose S2 at a position lower than the drainage devices 10 and 100. Next, the user pushes the push buttons 60 and 600 to open the on-off valve body 73. Then, the water passages 21 and 210 are opened to the atmospheric pressure through the opening 53, and the water in the water passages 21 and 210 flows out from the drainage devices 10 and 100 toward the hand shower S4 due to its own head pressure. It is discharged to the outside from a plurality of sprinkling holes formed on the sprinkling surface S41 of the hand shower S4. Next, the user stops pushing the push buttons 60 and 600, and attaches the hand shower S4 to the shower hook S3. Even with such an operation method, the water draining devices 10 and 100 can discharge the water inside the hand shower S4 to the outside.
(10) As a method of attaching the drainage device 10, the cap nut 30 is first connected to the male screw of the shower hose connection pipe S16, and then the male screw portion 40 is connected to the connection portion S21 of the shower hose S2. Although described in order, the male screw portion 40 may be connected to the connecting portion S21 of the shower hose S2 first, and then the cap nut 30 may be connected to the male screw of the shower hose connecting pipe S16.

10,100 ... Draining device, 20,200 ... Water flow pipe (water flow part), 30 ... Bag nut (faucet side connection part), 300 ... Water faucet body side male screw part (faucet side connection part), 40 ... Male screw part (shower head side connection part), 400 ... Shower hose side male screw part (shower head side connection part), 50,500 ... Branch pipe (branch part), 53 ... Opening, 60 ... Push button (operation) Member), 62 ... Insertion part, 73 ... Open / close valve body (open / close member), 74 ... Spring member (elastic member), 761 ... Bottom surface (part of pressure receiving surface), 771 ... End surface (part of pressure receiving surface), 78 ... recess (operated part), S ... shower device, S1 ... faucet body (faucet), S4 ... hand shower (shower head)

Claims (10)

A drainage device connected to a water pipe leading from a faucet to a shower head.
A water passage unit that communicates with the water passage of the water pipe,
A faucet-side connection portion formed on one end side of the water-passing portion and freely connectable to the water-passing pipe on the faucet side.
A shower head side connection portion formed on the other end side of the water passage portion and freely connectable to the water passage pipe on the shower head side.
An opening that communicates the water passage with the outside,
A drainage device including an opening / closing member that opens / closes the opening and can be operated from a closed state to an open state by receiving an operating force from the outside. The drainage device according to claim 1, wherein the opening / closing member has a pressure receiving surface that receives the water pressure of water in the water passage in the closing direction. The drainage device according to any one of claims 1 to 2, further comprising an elastic member that applies an elastic force in a direction of closing the opening / closing member. The drainage device according to any one of claims 1 to 3, further comprising a branch portion extending from the water passage portion and arranging the opening on the terminal side. The drainage device according to claim 4, wherein the opening / closing member is arranged inside the branch portion. The one according to any one of claims 1 to 5, wherein the water passage portion is rotatable about the direction in which the water passage extends with respect to the faucet side connection portion or the shower head side connection portion. Drainage device. The drainage device according to any one of claims 1 to 6, wherein the opening / closing member has an operated portion that receives the operating force on the back side of the opening. The drainage device according to claim 7, wherein the opening / closing member can be operated from a closed state to an open state in contact with the operated portion, and the opening / closing member and a detachable operating member are provided. The drainage device according to claim 8, wherein the operating member is inserted through the opening and has an inserting portion that comes into contact with the operated portion. A method of attaching the drainage device according to any one of claims 1 to 9 to a shower device installed in a bathroom.
The water pipe has a water pipe on the faucet side and a water pipe on the shower head side.
The connection portion between the water pipe on the faucet side and the water pipe on the shower head side is disassembled, and the water pipe on the faucet side is connected to the water pipe on the faucet side.
A method of attaching a drainage device for connecting the shower head side connection portion to the shower head side water pipe.

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