CN112627698B

CN112627698B - Drainage device and door and window

Info

Publication number: CN112627698B
Application number: CN202010689182.3A
Authority: CN
Inventors: 藤井猛
Original assignee: YKK AP Inc
Current assignee: YKK AP Inc
Priority date: 2019-10-08
Filing date: 2020-07-16
Publication date: 2023-04-28
Anticipated expiration: 2040-07-16
Also published as: JP2021059921A; TWI764196B; TW202115306A; JP7219690B2; CN112627698A

Abstract

A drainage device and a door and window capable of improving drainage performance. The water discharge device discharges Water (WA) accumulated on a frame material (214), and comprises: a drainage device body (7), the drainage device body (7) having: a cylindrical body (9) having a drainage Passage (PA) penetrating in the vertical direction; and a top surface part (10) which is provided at the upper end of the cylindrical body (9) and covers the drainage channel (PA). A receiving port (OP) is provided in the drain body (7), which is open at the side surface and communicates the drain Passage (PA) with the outside of the drain body (7). A first inclined surface (101) is provided on the lower surface (100) of the top surface part (10), forms the upper edge of the receiving Opening (OP), and is inclined downward from the outer edge of the lower surface (100) toward the center of the lower surface (100).

Description

Drainage device and door and window

Technical Field

The present invention relates to a drainage device for draining water accumulated in a frame material, and a door or window having the drainage device.

Background

Conventionally, there is known a drainage device that is attached to a frame material and discharges water accumulated in the frame material (for example, refer to patent document 1).

The drainage device described in patent document 1 includes a drainage device body including: a cylindrical body having a drain passage penetrating in a vertical direction; and a top surface part which is arranged at the upper end of the cylindrical body and covers the drainage channel. The drainage device body is provided with a receiving opening which is open at the side surface and enables the drainage channel to be communicated with the outside of the drainage device body. The water accumulated in the frame material permeates into the drainage channel through the receiving port and falls down along the drainage channel, thereby draining water.

Patent document 1: japanese patent No. 5571368

Disclosure of Invention

However, when the kinetic energy of the water accumulated in the frame material is small, the water is likely to remain in the receiving port even if the water permeates into the receiving port, and is difficult to permeate into the drainage passage. That is, in this case, it is difficult to improve the drainage performance.

Therefore, there is a need for a technique that can permeate water accumulated in a frame material into a drain passage through a receiving port even if the kinetic energy of the water is small, so as to improve the drainage performance.

The present invention has been made in view of the above-described problems, and an object thereof is to provide a drainage device and a door or window capable of improving drainage performance.

In order to achieve the above object, a drain device according to the present invention is a drain device for draining water accumulated in a frame material, comprising: the drainage device is provided with a drainage device body, wherein the drainage device body is provided with: a cylindrical body having a drain passage penetrating in a vertical direction; and a top surface part provided at an upper end of the cylindrical body and covering the drain passage, wherein the drain body is provided with a receiving opening which is opened at a side surface and communicates the drain passage with an outside of the drain body, and a first inclined surface which forms an upper edge of the receiving opening and is inclined downward from an outer edge of the lower surface toward a center of the lower surface is provided on a lower surface of the top surface part.

The door/window according to the present invention is a door/window comprising a frame body assembled into a four-sided frame, and a face unit supported by the frame body, and is characterized in that: the water discharge device is mounted on the upper surface of the lower frame constituting the frame body at a position on the indoor side of the surface assembly.

According to the drainage device and the door and window, the drainage performance can be improved.

Drawings

Fig. 1 is a longitudinal sectional view showing a part of a door or window according to an embodiment.

Fig. 2 is a perspective view showing an external appearance of the drainage device.

Fig. 3 is a perspective view showing an external appearance of the drainage device.

Fig. 4 is a cross-sectional view showing the drain body.

Fig. 5 is a cross-sectional view showing the drain body.

Fig. 6 is a cross-sectional view showing the drain body.

Fig. 7 is a perspective view showing the valve body.

Fig. 8A is a diagram illustrating the operation of the valve body.

Fig. 8B is a diagram illustrating the operation of the valve body.

Fig. 8C is a diagram illustrating the operation of the valve body.

Symbol description

1 door and window, 2 framework, 3 face subassembly, 6 drainage device, 7 drainage device body, 8 valve body, 9 cylinder, 10 top surface portion, 21 lower frame (frame material), 80 stop portion, 83 rotatory shaft part, 100 lower surface, 101 first inclined plane, 112 first water blocking surface (water blocking surface), 116 slot hole, 121 second inclined plane, OP receiving port, PA drainage channel.

Detailed Description

Hereinafter, embodiments (hereinafter, referred to as embodiments) of the present invention will be described with reference to the drawings. The present invention is not limited to the embodiments described below. In the drawings, the same reference numerals are used to designate the same elements.

Schematic structure of door and window

Fig. 1 is a longitudinal sectional view showing a part of a door window 1 according to the present embodiment.

The "depth direction" described below is a direction along the depth of the door and window 1 (the direction of arrow Ar in fig. 1). The plane along the depth direction is referred to as the depth plane; the plane perpendicular to the depth direction is also referred to as the front view plane.

The door window 1 of the present embodiment may be a fixed window which is provided in a part of a curtain wall provided at an outer wall position of a building or the like. The door and window 1 includes a frame 2 and a panel assembly 3.

The frame body 2 is constituted by four-sided frames composed of respective frames including an upper frame (not shown), a lower frame 21, a left-side vertical frame 22 viewed from the outside, and a right-side vertical frame (not shown) viewed from the outside. The respective frame members are formed of, for example, extruded materials made of metal such as aluminum, and have substantially the same cross-sectional shape throughout the entire length.

The lower frame 21 includes a bottom surface portion 211, an outdoor side main view wall portion 212, a rising portion 213, a depth wall portion 214, an indoor side main view wall portion 215, a hanging wall portion 216, and a drain portion 217.

The bottom surface 211 extends substantially parallel to the depth direction.

The outdoor side main view wall portion 212 extends from an outdoor side edge of the bottom surface portion 211 to be bent upward at a substantially right angle.

The rising portion 213 is a portion extending from the edge of the indoor side of the bottom surface portion 211 to be bent upward at a substantially right angle.

The deep wall 214 extends from the upper end of the rising portion 213 in the deep direction toward the indoor and outdoor, respectively.

The indoor side main view wall portion 215 is a portion of the depth wall portion 214 extending from the edge of the indoor side to the lower side in a bent manner to be substantially perpendicular.

The hanging wall 216 is a portion of the bottom surface portion 211 that is provided to hang down from the lower surface.

The drain portion 217 extends from the lower end of the depending wall portion 216 to bend at a substantially right angle to the outdoor side.

The face component 3 is made of glass or the like. The surface unit 3 is supported by the bottom surface 211 via the mounting block 4 and held between the outdoor-side main view wall 212 and the deep wall 214 via the seal unit 5. That is, the deep wall 214 is a portion located on the upper surface of the lower frame 21 on the indoor side of the surface module 3.

The deep wall 214 is provided with a through hole 218 penetrating in the vertical direction. Further, a drain device 6 for discharging water accumulated on the upper surface of the deep wall 214 to the outside due to condensation generated on the surface facing the inside of the room in the housing 2 or the surface unit 3 is attached to the through hole 218.

The following describes the detailed configuration of the drainage device 6.

Construction of drainage device

Fig. 2 and 3 are perspective views showing the external appearance of the drainage device 6. The valve body 8 shown in fig. 2 and 3 is positioned at a normal position described later.

In the following, the structure of the drainage device 6 will be described using the X-axis, Y-axis, and Z-axis perpendicular to each other. The Z-axis is an axis parallel to the vertical direction (+z-axis side is an upper side, and-Z-axis side is a lower side). In a state where the drainage device 6 is attached to the deep wall portion 214 in the posture shown in fig. 1, the X axis is an axis perpendicular to the paper surface of fig. 1. The Y axis is an axis parallel to the depth direction (+y axis side is an indoor side, -Y axis side is an outdoor side).

The posture of the drain device 6 attached to the deep wall portion 214 is not limited to the posture of fig. 1. For example, it is also possible to: the drain 6 is rotated by a predetermined angle from the posture of fig. 1 about the central axis Ax of the drain 6 substantially parallel to the Z axis.

The drain device 6 takes in water accumulated on the upper surface of the deep wall portion 214 and discharges the water to a space SP surrounded by the bottom surface portion 211, the rising portion 213, the deep wall portion 214, the surface unit 3, and the placement block 4. The water discharged to the space SP is discharged to the outdoor space through a drain hole (not shown) provided in the lower frame 21.

The drain 6 includes a drain body 7 and a valve body 8. In the present embodiment, the drain 6 (the drain body 7 and the valve body 8) is a molded product made of a resin material having high hydrophilicity.

Construction of drainage device body

Fig. 4 to 6 are sectional views showing the drain body 7. Specifically, fig. 4 is a sectional view of the drain body 7 taken along a YZ plane passing through the central axis Ax. Fig. 5 is a cross-sectional view of the drain body 7 taken along an XZ plane passing through the central axis Ax. Fig. 6 is a cross-sectional view of the drain body 7 taken along an XY plane passing through the second cylindrical body 12. In fig. 6, for convenience of explanation, the first inclined surface 101 is shown by a one-dot chain line.

The drain body 7 includes: a cylindrical body 9 having a drain passage PA penetrating along a Z axis (central axis Ax); and a top surface portion 10 that is provided on the +z-axis side end surface in the cylindrical body 9 and covers the drain passage PA.

The tubular body 9 includes a first tubular body 11 and a second tubular body 12.

The first cylindrical body 11 is a portion extending along the Z axis (central axis Ax) and having a substantially cylindrical shape with an outer diameter dimension substantially equal to an inner diameter dimension of the through hole 218, and is inserted into the through hole 218. The inside of the first cylindrical body 11 forms a part of the drain passage PA.

In the side wall portion of the first tubular body 11, a cutout portion 111 is provided at a +y-axis side portion, which is cut out from an end face on the-Z-axis side toward the +z-axis side.

Further, a first water blocking surface 112 for closing the drain passage PA by abutting against the valve body 8 is provided on the inner peripheral surface of the first cylindrical body 11. The first water blocking surface 112 corresponds to the water blocking surface of the present invention.

The first water blocking surface 112 includes: a first upper water deflector surface 113, a first lower water deflector surface 114, and a pair of first lateral water deflector surfaces 115.

The first upper water blocking surface 113 is a surface on the +z axis side of the first cylindrical body 11 and facing the-Z axis side.

The first lower water blocking surface 114 is a surface that is located on the-Z axis side of the first cylindrical body 11 and faces the-Z axis side.

The pair of first side water blocking surfaces 115 extend along the Z axis and face the +y axis side, and are connected to the first upper water blocking surface 113 and the first lower water blocking surface 114, respectively.

That is, the first water blocking surface 112 is a surface formed by continuously forming a first upper water blocking surface 113, a first lower water blocking surface 114, and a pair of first side water blocking surfaces 115, and extends in a ring shape over the entire circumference of the central axis Ax.

Further, the first tubular body 11 is provided with a pair of long holes 116 penetrating the side wall portions of the first tubular body 11, respectively.

The pair of long holes 116 extend through the side wall portions of the first cylindrical body 11 along the X axis on the-Z axis side of the first upper water blocking surface 113, on the +z axis side of the first lower water blocking surface 114, and on the +y axis side of the pair of first side water blocking surfaces 115, respectively. Further, the length direction of the pair of long holes 116 is inclined with respect to the Z axis. More specifically, the length direction of the pair of long holes 116 is inclined toward the +y axis side as it is toward the-Z axis side.

The second cylindrical body 12 has a substantially cylindrical shape extending along the Z axis, and is formed integrally with the end face on the +z axis side of the first cylindrical body 11 in a coaxial posture with the first cylindrical body 11. The inside of the second cylindrical body 12 forms a part of the drain passage PA.

Here, the outer diameter of the second cylinder 12 is larger than the outer diameter of the first cylinder 11. In a state where the drain device 6 is attached to the through hole 218 (a state where the first tubular body 11 is inserted into the through hole 218), the second tubular body 12 is positioned on the +z axis side of the upper surface of the deep wall portion 214; and is positioned so that its outer peripheral surface is located further outside than the inner peripheral surface of the through-hole 218 when viewed from the +z axis side.

The top surface portion 10 has a disk shape having an outer diameter substantially equal to the outer diameter of the second cylindrical body 12, and is integrally formed with the end surface on the +z axis side of the second cylindrical body 12 in a coaxial posture with the second cylindrical body 12.

That is, in a state where the drain device 6 is attached to the through hole 218, the top surface portion 10 is positioned on the +z axis side of the upper surface of the deep wall portion 214, similarly to the second tubular body 12; and is positioned so that its outer peripheral surface is located further outside than the inner peripheral surface of the through-hole 218 when viewed from the +z axis side.

On the +z axis side of the drain body 7 described above, 2 receiving ports OP that are opened on the side surfaces (X axis direction) and that communicate the drain passages PA with the outside of the drain body 7 are provided, respectively. Further, the 2 receiving ports OP have the same shape, and only the positions are set to be different.

Specifically, the receiving port OP is a rectangular opening. In addition, the +z-axis side edge of the receiving port OP is constituted by the lower surface 100 of the top surface portion 10. Further, the edges on both sides in the Y-axis direction in the receiving port OP are constituted by the second cylindrical body 12. In addition, the-Z-axis side edge of the receiving port OP is constituted by the first cylindrical body 11.

Here, the lower surface 100 of the top surface portion 10 is formed by two first inclined surfaces 101 and a central horizontal surface 102 (fig. 5 and 6).

The 2 first inclined surfaces 101 constitute edges on the +z-axis side of the 2 receiving ports OP, respectively, and are flat surfaces inclined toward the-Z-axis side, respectively, as going from the outer edge of the lower surface 100 toward the center (central axis Ax) of the lower surface 100.

The center horizontal plane 102 is located on the center axis Ax between the 2 first inclined planes 101, and is parallel to the flat surface of the XY plane.

Further, the second cylindrical body 12 is provided with 2 second inclined surfaces 121 which respectively constitute edges on both sides of the receiving port OP in the Y axis direction (fig. 2, 3, 6).

The 2 second inclined surfaces 121 are flat surfaces inclined so as to expand the opening areas of the two receiving ports OP, respectively, as going from the drain passage PA toward the outside of the drain body 7.

In addition, in a state where the drain 6 is attached to the through hole 218, the-Z-axis side edge of the 2 receiving ports OP is positioned on the-Z-axis side of the upper surface of the deep wall portion 214 (fig. 5). On the other hand, the first inclined surface 101 and the second inclined surface 121 are positioned closer to the +z axis than the upper surface of the deep wall 214 (fig. 5).

In addition, when water WA (shown by a one-dot chain line in fig. 5) accumulated on the upper surface of the deep wall portion 214 and permeated into the receiving port OP contacts the first inclined surface 101 and the second inclined surface 121, it is attracted to the center axis Ax side by its surface tension. In addition, the water WA falls down in the drainage passage PA based on its own weight.

In particular, since the first inclined surface 101 and the second inclined surface 121 are inclined in the above-described manner, a structure is formed in which the water WA is easily brought into contact with the first inclined surface 101 and the second inclined surface 121. Further, since the drainage device 6 is made of a resin material having high hydrophilicity, a structure is formed in which after the water WA comes into contact with the first inclined surface 101 and the second inclined surface 121, the water WA is easily attracted to the center axis Ax side by its surface tension.

Valve body structure

Fig. 7 is a perspective view showing the valve body 8. The posture of the valve body 8 shown in fig. 7 is a posture when the valve body 8 is positioned to a normal position or a valve closing position described later.

The valve body 8 is provided in the drain passage PA and is movable to a normal position, a valve open position, and a valve closed position, respectively. The valve body 8 includes a back wall portion 81, a pair of side wall portions 82, a pair of rotation shaft portions 83, and a bottom wall portion 84.

The back wall 81 is a substantially rectangular plate, and each plate surface thereof intersects the Y axis.

The pair of side wall portions 82 are plate bodies extending from the respective edges of the rear wall portion 81 on both sides in the X-axis direction, and bent at substantially right angles toward the-Y-axis side. That is, the back wall portion 81 and the pair of side wall portions 82 are integrally formed in a substantially U-shape.

The pair of rotation shaft portions 83 are substantially cylindrical, and protrude along the X-axis from the plate surfaces of the side edges of the pair of side wall portions 82 that are separated from each other. Further, the pair of rotation shaft portions 83 are inserted into the pair of long holes 116, respectively. The valve body 8 is thereby disposed in the drain passage PA (in the first cylindrical body 11).

The bottom wall 84 is a plate body where each plate surface intersects the Z axis. The bottom wall 84 includes a bottom wall body 841 and a protrusion 842.

The bottom wall body 841 is formed integrally with the back wall 81 and the end surfaces of the pair of side wall portions 82 on the-Z axis side.

The protrusion 842 is a portion protruding from the-Y-axis side edge of the bottom wall body 841 toward the-Y-axis side.

The stopper 80 is provided on the basis of the back wall 81, the pair of side walls 82, and the bottom wall 84 described above, and is opened upward to temporarily block the water WA falling down the water circulation path PA.

In addition, on the outer surface of the valve body 8, a second water blocking surface 85 is provided which has a shape corresponding to the first water blocking surface 112 and is used to close the drain passage PA by abutting against the first water blocking surface 112 when the valve body 8 is positioned to the valve closing position.

The second water blocking surface 85 includes: a second upper water blocking surface 851, a second lower water blocking surface 852 and a pair of second lateral water blocking surfaces 853.

The second upper water blocking surface 851 is an end surface on the +z axis side of the back surface wall portion 81 and the pair of side wall portions 82, and is a surface that abuts against the first upper water blocking surface 113 of the first water blocking surface 112.

The second lower water blocking surface 852 is a surface on the +z axis side of the protrusion 842, and is a surface that abuts against the first lower water blocking surface 114 of the first water blocking surface 112.

The pair of second side water blocking surfaces 853 are end surfaces on the side of the-Y axis of the pair of side wall portions 82, and are surfaces that respectively abut against the pair of first side water blocking surfaces 115 of the first water blocking surfaces 112.

Valve body movement

Next, the operation of the valve body 8 will be described with reference to fig. 8A, 8B, and 8C.

Fig. 8A, 8B, and 8C are sectional views corresponding to fig. 4, and are views for explaining the operation of the valve body 8. Specifically, fig. 8A is a diagram showing a state in which the valve body 8 is positioned to the normal position. Fig. 8B is a diagram showing a state in which the valve body 8 is positioned to the valve open position. Fig. 8C is a diagram showing a state in which the valve body 8 is positioned to the valve-closed position.

The valve body 8 is normally positioned to the normal position shown in fig. 8A.

The normal position is balanced based on the self weight of the valve body 8. In the normal position, the pair of rotation shaft portions 83 are located at one end side (-Z axis side) in the longitudinal direction of the long hole 116 in the pair of long holes 116. In the normal position, a gap is provided between the first water blocking surface 112 and the second water blocking surface 85. In the following, this gap will be referred to as a first gap.

In a state where the valve body 8 is positioned at the normal position, water WA that permeates into the drain passage PA through the receiving port OP and falls down along the drain passage PA is accumulated in the stopper 80. The valve body 8 is rotated counterclockwise in fig. 8A, 8B, and 8C about the pair of rotation shaft portions 83 based on the load received from the water WA, and is positioned to the valve-open position shown in fig. 8B.

In the valve-open position, the gap between the first water blocking surface 112 and the second water blocking surface 85 is a second gap larger than the first gap. Thereby, the water WA accumulated in the stopper 80 is discharged to the space SP through the second gap.

Further, in a state where the valve body 8 is positioned to the normal position or the valve opening position, if pressure is applied to the valve body 8 from outside the drain device 6 due to rainwater, wind, or the like that has flown into the space SP from the outdoor space, the movement of the pair of rotation shaft portions 83 caused by the pair of long holes 116 is guided so that the valve body 8 is moved toward the +z axis side and positioned to the valve closing position shown in fig. 8C.

In the valve-closed position, the pair of rotation shaft portions 83 are located on the other end side (+z-axis side) in the longitudinal direction of the long hole 116 within the pair of long holes 116. Further, in the valve-closed position, the second water blocking surface 85 abuts the first water blocking surface 112. That is, rainwater, wind, or the like, which has flown into the space SP from the outdoor space, does not flow into the indoor space via the drainage device 6.

Other embodiments

The manner in which the present invention is implemented has been described so far, but the present invention should not be limited to only the above-described embodiments.

In the above embodiment, the window 1 is exemplified as the fitted window constituting a part of the curtain wall, but the window of the present invention is not limited to the window used for the curtain wall, and may be various windows provided on the outer wall of a building; the door and window is used for the entrance and exit of the indoor and outdoor or the entrance and exit of the bathroom. In the above-described embodiment, although the window 1 is exemplified as the fixed window to which the face unit 3 is fixed, the window is not limited to the fixed window, and the window may be a window having various opening and closing forms such as a double-channel sliding window, a single-channel sliding window, a vertically sliding window, a side-hung window, and the like in which the face unit, that is, a window sash, is supported so as to be openable and closable.

In the above-described embodiment, the valve body (switching valve) that rotates around the rotation shaft 83 is used as the valve body of the present invention, but the valve body is not limited thereto, and a valve body that does not rotate, such as a ball described in patent document 1, may be used. In addition, a structure in which no valve body is provided may be adopted.

In the above embodiment, the long hole 116 is provided in the drain body 7 and the rotation shaft portion 83 is provided in the valve body 8, but the present invention is not limited thereto. For example, the long hole of the present invention may be provided in the valve body, and the rotation shaft portion of the present invention may be provided in the drain body. At this time, the rotary shaft portion and the drain body of the present invention are formed separately and inserted into the hole provided in the drain body and the long hole provided in the valve body.

In the above embodiment, 2 receiving ports OP are provided, and the number thereof may be 1 or 3 or more.

In the above embodiment, the first inclined surface 101 is formed as a flat surface, but the present invention is not limited thereto, and may be formed as a curved surface as long as it is inclined downward from the outer edge of the lower surface 100 toward the center of the lower surface 100.

The present invention provides a drainage device for draining water accumulated in a frame material, comprising a drainage device body, wherein the drainage device body comprises: a cylindrical body having a drain passage penetrating in a vertical direction; and a top surface part provided at an upper end of the cylindrical body and covering the drain passage, the drain body being provided with a receiving opening which opens at a side surface and communicates the drain passage with an outside of the drain body, a first inclined surface being provided on a lower surface of the top surface part, the first inclined surface constituting an edge above the receiving opening and being inclined downward as going from an outer edge of the lower surface toward a center of the lower surface.

In the present invention, since the above-described first inclined surface is provided on the lower surface of the top surface portion, a structure is formed such that water permeated into the receiving port is easily brought into contact with the first inclined surface. Then, the water contacting the first inclined surface is sucked into the drainage body by its surface tension, and then falls down along the drainage channel by its own weight, thereby draining water.

Therefore, even when the kinetic energy of the water accumulated in the frame material is small, the water can be discharged in the above manner to improve the drainage performance.

In the drainage device according to the present invention, the tubular body is provided with a second inclined surface which forms an edge of a side surface of the receiving port and expands an opening area of the receiving port as going from the drainage passage to the outside of the drainage device body.

According to the present invention, since the second inclined surface is provided in the cylindrical body, the opening area of the receiving port can be increased, and water accumulated in the frame material can smoothly permeate into the drain passage through the receiving port. Further, the second inclined surface can have the same function as the first inclined surface (a function of contacting water and attracting the water to the inside of the drain body), further improving the drainage performance.

In the drainage device according to the present invention, the first inclined surface extends so as to extend across the inner peripheral surface of the tubular body when viewed from above.

According to the present invention, since the first inclined surface extends as described above, water sucked into the drainage body by the first inclined surface can be effectively dropped into the tubular body (drainage passage), and drainage performance can be further improved.

The present invention is also directed to the drain device, further comprising a valve body provided in the drain passage and movable to a normal position, a valve-open position, and a valve-closed position, respectively; a water blocking surface which is abutted by the valve body is arranged on the inner peripheral surface of the cylindrical body; a long hole is provided in one of the tubular body and the valve body; a rotary shaft portion inserted into the long hole is provided to the other member of the tubular body and the valve body, and the normal position is a position where the rotary shaft portion is located at one end side in the longitudinal direction of the long hole, and a gap between the water blocking surface and the valve body is a first gap; the valve-open position is a position in which the valve body positioned to the normal position is rotated about the rotation shaft portion, and a gap between the water blocking surface and the valve body is a second gap larger than the first gap; the valve closing position is a position where the rotation shaft portion is located on the other end side in the longitudinal direction of the long hole, and the valve body abuts against the water blocking surface.

In the present invention, the valve body is normally positioned to the normal position based on its own weight. The valve body positioned to the normal position receives a load by water penetrating the drain passage through the receiving port, rotates around the rotation shaft portion, and is positioned to the valve opening position. Thereby allowing water permeated to the drainage channel through the receiving port to be discharged. Further, the valve body is positioned to the valve closing position by being guided by the long hole and the rotation shaft portion based on the application of pressure from the outside of the drain device. This prevents rainwater, wind, and the like from flowing backward from the outside of the drainage device through the drainage device.

Here, in the normal position, the gap (first gap) between the water blocking surface and the valve body is smaller than the gap (second gap) in the valve open position. That is, since drainage is not required in a normal state, the gap (first gap) between the water blocking surface and the valve body can be made relatively small. Therefore, in an environment including a degree of blowing natural wind (for example, wind of 12m/s or less) in a windless state, it is possible to suppress inflow of outdoor wind into the room through the drainage device (the gap).

Furthermore, the present invention is characterized in that: in the drainage device, the long hole has a length direction inclined from the vertical direction.

According to the present invention, since the long hole is inclined in the longitudinal direction with respect to the vertical direction, the valve body can be rotated from the normal position toward the valve opening position at a position away from the water blocking surface. That is, the water blocking surface can be provided at a position that does not mechanically interfere with the valve body when the valve body rotates. Therefore, when the valve body is positioned to the valve-closing position, it is possible to surely perform the abutment between the valve body and the water blocking surface, and to promote the water blocking performance in the valve-closing position.

Furthermore, the present invention is characterized in that: in the drainage device, the long hole is provided in the tubular body, and the rotation shaft portion is provided in the valve body.

According to the present invention, since the long hole is provided in the tubular body and the rotation shaft portion is provided in the valve body, the assemblability of the drain device can be improved as compared with a configuration in which, for example, the long hole is provided in the valve body and the rotation shaft portion is provided in the tubular body.

Furthermore, the present invention is characterized in that: in the drainage device, a stopper portion that opens upward is provided on the valve body.

According to the present invention, since the stopper is provided in the valve body, the valve body can be smoothly rotated from the normal position toward the valve open position based on water that has permeated into the drain passage.

The present invention is a door/window comprising a frame assembled into a four-sided frame, and a face unit supported by the frame, wherein the door/window comprises the drainage device, and the drainage device is attached to a portion of an upper surface of a lower frame constituting the frame, the portion being located further inside than the face unit.

According to the present invention, by installing the drainage device with improved drainage performance in the above-described position, the drainage device can drain water accumulated in the lower frame to the outside of the room due to condensation generated on the surface of the frame or the surface unit facing the inside of the room, and thus the comfort of the indoor space can be ensured.

Claims

1. A drainage device for draining water accumulated in a frame material, characterized in that:

the drainage device is provided with a drainage device body, wherein the drainage device body is provided with:

a cylindrical body having a drain passage penetrating in a vertical direction; and

A top part arranged at the upper end of the cylinder body and covering the drainage channel,

the drainage device body is provided with a receiving opening which is open at the side surface and enables the drainage channel to be communicated with the outside of the drainage device body,

a first inclined surface which forms an upper edge of the receiving opening and is inclined downward from an outer edge of the lower surface toward a center of the lower surface is provided on a lower surface of the top surface portion,

a valve body provided in the drain passage and movable to a normal position, a valve open position, and a valve closed position, respectively;

a water blocking surface which is abutted by the valve body is arranged on the inner peripheral surface of the cylindrical body;

a long hole is provided in one of the tubular body and the valve body;

a rotary shaft portion is provided on the other member of the tubular body and the valve body, the rotary shaft portion is inserted into the long hole,

the normal position is a position where the rotation shaft portion is located at one end side in the longitudinal direction of the long hole, and a gap between the water blocking surface and the valve body is a first gap;

the valve-open position is a position in which the valve body positioned to the normal position is rotated about the rotation shaft portion, and a gap between the water blocking surface and the valve body is a second gap larger than the first gap;

the valve closing position is a position where the rotation shaft portion is located on the other end side in the longitudinal direction of the long hole, and the valve body abuts against the water blocking surface.

2. The drainage device of claim 1, wherein:

the cylindrical body is provided with a second inclined surface which forms an edge of a side surface of the receiving port and expands an opening area of the receiving port as going from the drain passage toward the outside of the drain body.

3. The drainage device of claim 1 or claim 2, wherein:

the first inclined surface extends so as to span the inner peripheral surface of the cylindrical body when viewed from above.

4. The drainage device of claim 1, wherein:

the length direction of the long hole is inclined relative to the vertical direction.

5. The drainage device of claim 1, wherein:

the long hole is arranged on the cylindrical body,

the rotary shaft portion is provided in the valve body.

6. The drainage device of claim 1, wherein:

a stopper portion is provided on the valve body and opens upward.

7. A door and window comprises a frame body assembled into a four-side frame; and a door and window of a face component supported by the frame body, characterized in that:

having the drainage device of any one of claim 1 to claim 6,

the drainage device is mounted on the upper surface of the lower frame constituting the frame body and positioned on the indoor side of the surface assembly.