JP2020084462A - Piping connection member of required water section - Google Patents

Abstract

To provide the piping connection member of the required water section that has a good sealing property and can be miniaturized without requiring a large construction space.SOLUTION: A piping connection member 1 of a required water section for connecting a receiving part 5 for receiving liquid supplied from an upstream side and draining the liquid from an exhaust port 53, and piping 6 arranged on a downstream side of the exhaust port 53 comprises: a downstream side connecting part 12 that is formed in a tubular shape arranged along a flowing direction of the liquid and is fitted into an inner peripheral surface of an upper end side of the piping 6; and an upstream side connecting part 11 that is attached so as to surround a periphery of a projecting part 532 that projects downward from the exhaust port 53 and is configured by an elastic member, wherein the downstream side connecting part 12 includes the elastic member at least in a part.SELECTED DRAWING: Figure 2

Description

The present invention relates to a pipe connecting member around water.

Conventionally, when connecting a water receiving part such as a bowl part for receiving and draining water from a washbasin or a handwash, and a pipe connected to the drain port of the receiving part, the diameter of the upper part is smaller than that of the lower part. A large funnel-shaped pipe connecting member is used. The lower side of the pipe connecting member is supported on the bottom surface of the cabinet in which the receiving portion is arranged by using a supporting member, and the upper side having a large diameter is projected upward from the bottom surface of the cabinet and the like, and the receiving portion is provided in the opening on the upper side. A configuration is proposed in which a protruding portion that protrudes downward from the drainage port is fitted. The space between the opening on the upper side of the pipe connecting member and the projecting portion of the receiving portion is sealed with packing (for example, refer to Patent Document 1).

JP2012-162887A

When sealing the gap between the opening on the upper side of the pipe connection member and the protruding part of the receiving part with packing, and supporting the pipe connecting member by the bottom surface of the cabinet or the supporting member, construction error of the bottom surface or the supporting member and the receiving part Due to the deformation of the protrusion, a gap is formed around the packing, which may cause water leakage. Further, the packing interposed between the opening on the upper side of the pipe connecting member and the projecting portion of the receiving portion increases the diameter of the upper portion of the pipe connecting member. Further, the lower portion of the pipe connecting member is tubular and has a length sufficient to extend to the bottom surface of the cabinet, so that the pipe connecting member becomes large as a whole. Therefore, in addition to securing a large construction space for the pipe connection member, it is necessary to process the bottom surface of the cabinet to which the pipe connection member is attached and to construct the support member.

The present invention provides a receiving portion (for example, a washbasin 5 described below) for receiving a liquid supplied from an upstream side and draining the liquid from a drainage port (for example, a drainage hole 53 described below) and a downstream side of the drainage port. A pipe connection member around water (for example, a pipe connection member 1 described below) that connects with a pipe (for example, a drainage pipe 6 described below) that is arranged, the pipe connection member being along a flowing direction of the liquid. A downstream connecting portion (for example, a downstream connecting portion 12 described later) which is formed in a tubular shape and is fitted into the inner peripheral surface of the upper end side of the pipe, and a protruding portion which projects downward from the drainage port. And an upstream side connecting portion (for example, an upstream side connecting portion 11 described later) that is attached so as to surround the periphery and is composed of an elastic member, and the downstream side connecting portion includes an elastic member at least in part. , A pipe connection member around water.

The rigidity of the downstream side connecting portion is preferably higher than the rigidity of the upstream side connecting portion.

It is preferable that an outer peripheral side convex portion (for example, an outer peripheral side convex portion 121 described later) is formed on the outer peripheral surface of the downstream side connecting portion so as to protrude outward along the outer peripheral surface.

A boundary portion (for example, a boundary portion 13 described below) between the lower end side of the upstream side connecting portion and the upper end side of the downstream side connecting portion is thicker than the upstream side connecting portion and the downstream side connecting portion. Is preferably formed.

The downstream-side connecting portion extends along a tubular downstream-side connecting portion main body (for example, a downstream-side connecting portion main body 120 described later) that is continuous from the upstream-side connecting portion, and an inner peripheral surface of the downstream-side connecting portion main body. It is preferable to have a tubular member (for example, a tubular member 20 described later) that is arranged so as to extend and has a rigidity higher than that of the upstream-side connecting portion.

The tubular member preferably has a filter portion (for example, a filter portion 211 described below).

A flange portion (for example, a flange portion 22 described below) is formed on the upper end of the tubular member to expand its diameter outward, and a plurality of cutouts cut out from the outer peripheral edge of the flange portion toward the inner peripheral side. It is preferable that the notch is formed.

It is preferable that the downstream-side connecting portion is composed of only the elastic member.

It is preferable to further include a fixing member (for example, a fixing member 30 described later) that presses and fixes the outer peripheral surface of the upstream side connecting portion.

It is preferable that the receiving portion is a washbasin made of earthenware.

The receiving portion, the pipe, and the water pipe connecting member described above, the inner peripheral surface of the upstream connecting portion, the inner peripheral convex portion protruding inward along the inner peripheral surface. (For example, an inner peripheral side convex portion 112 described later) is formed, and an engagement groove (for example, an engagement groove described later) that engages with the inner peripheral side convex portion is formed on the outer peripheral surface of the protruding portion of the drainage port. A pipe connection structure around water in which 533) is formed (for example, the pipe connection structure 100 described later) is preferable.

Further, the present invention is a pipe connection member around a water receiving a liquid supplied from an upstream side and connecting a receiving part for draining the liquid from a drain port and a pipe arranged on the downstream side of the drain port. There, the pipe connection member is formed in a tubular shape arranged along the flowing direction of the liquid, the downstream side connection portion fitted to the inner peripheral surface of the upper end side of the pipe, and downward from the drain port. An upstream side connecting portion that is attached so as to surround the periphery of the protruding portion and that is configured by an elastic member, and the inner surface of the upper end of the upstream side connecting portion shrinks inward as it goes downward from the upper end. The present invention relates to a pipe connection member around water, which is formed in a tapered shape having a diameter.

The upstream connecting portion has a tubular upstream connecting portion main body (for example, an upstream connecting portion main body 110 described later) and an upper diameter of the upstream connecting portion main body that is larger than an outer diameter of the upstream connecting portion main body. It is preferable to have an edge portion (for example, an edge portion 111 to be described later) that expands to the outside, and the inner surface of the edge portion is formed in a tapered shape in which the diameter decreases inward from the upper end toward the lower side. ..

Advantageous Effects of Invention According to the present invention, it is possible to provide a pipe connection member around water which has a good sealing property and can be downsized without requiring a large construction space.

It is a perspective view which shows the piping connection structure around water of this embodiment. It is a perspective view of the piping connection member of this embodiment. It is sectional drawing of the piping connection structure around water of this embodiment. The (a) figure is a top view and the (b) figure is a side view showing the cylindrical member of this embodiment. It is sectional drawing of the piping connection member of other embodiment.

Hereinafter, embodiments of the present invention will be described in detail with reference to the drawings. FIG. 1 is a perspective view showing a pipe connection structure 100 around water according to the present embodiment. As shown in FIG. 1, the pipe connection structure 100 around water has a washbasin 5 as a receiving portion, a drain pipe 6 as pipe, and a pipe connection member 1.

The washbasin 5 is a pottery-made container having an open upper portion, which is used as a washstand, and is configured to receive and store water supplied from the upstream side. The washbasin 5 has a bottom surface portion 51, a side surface portion 52, and a drain port 53.
The bottom surface portion 51 is formed such that the periphery thereof is gently inclined so that the central portion becomes low, and is disposed below a faucet (not shown).
The side surface portion 52 stands up to surround the peripheral edge of the bottom surface portion 51.
The drainage port 53 has a drainage hole 531 and a protrusion 532 (see FIG. 3 ). The drain hole 531 is a through hole formed in the central portion of the bottom surface portion 51, and drains the water received by the bottom surface portion 51 to the outside. The projecting portion 532 is a cylindrical convex portion in which the outer peripheral edge of the drainage hole 531 projects downward from the back surface of the bottom surface portion 51, and is connected to the pipe connecting member 1 described later. On the outer peripheral surface of the protruding portion 532, an engagement groove 533 with which the pipe connecting member 1 described later is engaged is formed (see FIG. 3 ).

The drain pipe 6 is a pipe for flowing the water drained from the washbasin 5 into the sewage. As shown in FIG. 1, the drainage pipe 6 has a bellows portion 61 and an elbow pipe 62, and is arranged downstream of the drainage port 53.

FIG. 2 is a perspective view of the pipe connection member 1 of this embodiment. The pipe connecting member 1 is a component used around water for connecting the washbasin 5 and the drain pipe 6. The pipe connecting member 1 includes an upstream connecting portion 11, a downstream connecting portion 12, a boundary portion 13, and a fixing member 30.

The pipe connection member 1 is a tubular member having a different diameter, and is arranged along the flowing direction of water with the upper side upstream and the lower side downstream. In this specification, the direction of flowing water means a direction in which water is made to flow from a water supply source such as a faucet toward the washbasin 5 and is drained. Upstream is above the flowing water direction and downstream is in the flowing water direction. Means downward.

FIG. 3 is a cross-sectional view of the pipe connection structure 100. As shown in FIG. 3, the upstream-side connecting portion 11 is a cylindrical portion that is attached so as to surround the periphery of the protruding portion 532 in the drainage port 53 of the washbasin 5 and is exposed upward from the upper end of the drainage pipe 6. Is. The upstream side connecting portion 11 is made of rubber (EPDM or the like) as an elastic member, and the upstream side connecting portion 11 includes the upstream side connecting portion body 110, the edge portion 111, the inner peripheral side convex portion 112, and the inner peripheral edge. And 113.

The upstream-side connecting portion body 110 is a cylindrical body extending vertically with the same diameter.
The edge portion 111 is a portion that expands outward from the upper end of the upstream-side connecting portion body 110 by a larger diameter than the outer diameter of the upstream-side connecting portion body 110. That is, the inner surface of the upper end of the upstream side connection portion 11 including the edge portion 111 is formed in a tapered shape in which the diameter decreases inward from the upper end toward the lower side. The edge portion 111 is fitted to the back surface of the bottom surface portion 51 of the washbasin 5 at the base of the protruding portion 532.

The inner peripheral side convex portion 112 is formed on the inner peripheral surface of the upstream side connecting portion main body 110, and projects inward along the inner peripheral surface at an intermediate portion in the vertical direction of the upstream side connecting portion main body 110. As shown in FIG. 3, on the outer peripheral surface of the protruding portion 532 of the drainage port 53, an engaging groove 533 that can be engaged with the inner peripheral side convex portion 112 is formed, and the upstream side connecting portion 11 is connected to the protruding portion 532. , The inner peripheral convex portion 112 and the engaging groove 533 are engaged with each other.

The inner peripheral edge 113 is formed such that the lower end of the upstream-side connecting portion main body 110 is bent inward and extends in a direction intersecting the flowing water direction. The inner peripheral edge 113 reduces the inner diameter of the lower end of the upstream-side connecting portion main body 110.

The downstream side connecting portion 12 is a portion which is fitted to the inner peripheral surface of the drain pipe 6 on the upper end side and is connected to the drain pipe 6. The downstream connecting portion 12 is formed in a tubular shape having an inner diameter smaller than that of the upstream connecting portion 11. The downstream side connecting portion 12 includes a downstream side connecting portion body 120, an outer peripheral side convex portion 121, a lower end side inner peripheral edge 122, and a tubular member 20, and at least a part is made of rubber.

The downstream-side connecting portion main body 120 is a cylindrical portion that continuously extends downward from the upstream-side connecting portion 11 and is made of the same rubber as the upstream-side connecting portion 11.
The outer peripheral side convex portion 121 is formed on the outer peripheral surface of the downstream side connecting portion main body 120, and projects outward along the outer peripheral surface.
The lower end side inner peripheral edge 122 is a portion where the lower end portion of the downstream side connection portion main body 120 projects inward in a direction intersecting the flowing water direction. That is, the inner diameter is small at the lower end of the downstream side connection body 120. The lower end side inner peripheral edge 122 supports a lower end portion of the tubular member 20 described later.

4A is a top view of the tubular member 20, and FIG. 4B is a side view. As shown in FIGS. 2 to 4B, the tubular member 20 is a tubular member arranged so as to extend in the vertical direction along the inner peripheral surface of the downstream-side connecting portion body 120. The tubular member 20 is made of resin and has higher rigidity than the upstream connection portion 11.
As shown in FIGS. 4A and 4B, the tubular member 20 has a tubular portion 21 and a flange portion 22.

The tubular portion 21 has an outer diameter of a size that fits snugly on the inner circumference of the downstream connecting portion body 120, and extends from the upper side to the lower end of the downstream connecting portion body 120. The lower end portion of the tubular portion 21 is placed and supported on the lower end side inner peripheral edge 122 of the downstream connecting portion body 120. The tubular portion 21 has a hollow portion 23 inside. A filter portion 211 that divides the hollow portion 23 into three directions is provided on the upper side of the tubular portion 21.
The filter portion 211 is composed of three rods that extend in a direction orthogonal to the extending direction of the tubular portion 21 and divide the inner circumference by 120 degrees. The filter portion 211 is configured to capture dust contained in the drained water.

The flange portion 22 is a substantially annular edge portion that is formed on the upper end of the tubular portion 21 and has a diameter that increases outward from the tubular portion 21. The flange portion 22 is placed on the inner peripheral edge 113 of the upstream side connecting portion 11 and has an outer diameter of a size that fits on the inner peripheral surface of the upstream side connecting portion 11. The flange portion 22 is formed with notches 221 that are cut out from the outer peripheral edge of the flange portion 22 toward the inner peripheral side at approximately three locations along the circumferential direction.

As shown in FIG. 3, the boundary portion 13 is formed between the lower end portion of the upstream side connection portion 11 and the upper end portion of the downstream side connection portion 12 to form a step where the inner diameter of the pipe connection member 1 changes. .. As shown in FIG. 3, in the boundary portion 13, on the inner surface of the pipe connecting member 1, the inner peripheral edge 113 extends inward under the upstream connecting portion 11, and at the innermost edge point of the inner peripheral edge 113. By bending downward, the inner diameter of the pipe connection member 1 changes. On the other hand, on the outer surface of the pipe connecting member 1, the diameter reduction from the upstream connecting portion 11 to the downstream connecting portion 12 is formed by a gentle curved surface. Therefore, in cross-sectional view, the thickness of the boundary portion 13 is thicker than the thickness of the upstream side connecting portion 11 and the downstream side connecting portion 12.

As shown in FIG. 2, the fixing member 30 is an annular band body attached to the outer circumference of the upstream connecting portion 11. The fixing member 30 presses and fixes the outer peripheral surface of the upstream side connecting portion 11 to reinforce the upstream side connecting portion 11.

Next, a method of using the pipe connecting member 1 will be described.
First, the upstream connecting portion 11 of the pipe connecting member 1 is fitted into the protruding portion 532 of the drainage port 53. Accordingly, the inner peripheral side convex portion 112 formed so as to protrude from the inner peripheral surface of the upstream side connecting portion main body 110 engages with the engaging groove 533 of the protruding portion 532, so that the upstream side connecting portion 11 is correctly positioned. Can be fitted in position. Further, since the edge portion 111 is formed by expanding the diameter from the upper end of the upstream side connection portion body 110, the protrusion portion 532 is formed by fitting the edge portion 111 to the back surface of the bottom surface portion 51 of the washbasin 5. It is visually confirmed that the pipe connecting member 1 is inserted all the way to the inside and is properly connected. Since the diameter of the pipe connecting member 1 changes between the upstream connecting portion 11 and the downstream connecting portion 12, a step is formed. With this step, the range in which the drain pipe 6 is inserted can be visually understood.

After fitting the upstream connecting portion 11 into the protruding portion 532, the fixing member 30 is fitted to the outer surface of the upstream connecting portion 11 to further fix the periphery of the outer surface of the upstream connecting portion 11. The fixing member 30 is attached to the correct position by attaching the fixing member 30 so that the upper end of the fixing member 30 is located at the lower end of the edge portion 111 of the upstream side connecting portion 11.

At the downstream side connecting portion of the pipe connecting member 1, the tubular member 20 is set in advance inside the downstream side connecting portion body 120. The flange portion 22 of the tubular member 20 is placed on the inner peripheral edge 113 of the upstream connecting portion 11. In this state, the downstream side connecting portion 12 is fitted into the drain pipe 6. Since the upstream-side connecting portion 11 and the downstream-side connecting portion main body 120 are made of rubber, they have good adhesion and are soft, but the downstream-side connecting portion 12 has the tubular member 20 made of resin inside, so that the pipe connecting member is The rigidity of the downstream side of 1 becomes higher than the rigidity of the upstream side connecting part 11, and the downstream side connecting part 12 is less likely to be crushed.

When the downstream connecting portion 12 is fitted into the drain pipe 6, as shown in FIG. 3, the outer peripheral convex portion 121 formed on the outer surface of the downstream connecting portion 12 and the inner peripheral surface of the drain pipe 6 come into close contact with each other. ..

As shown in FIG. 3, when the pipe connection member 1 is attached to the protruding portion 532, the inner diameter D1 of the lower end portion of the protruding portion 532 is the same as the inner diameter of the upper end of the tubular member 20 (inner diameter D2 of the flange portion 22). The size of the flow path of the water, which is smaller than that of the water flowing through the drainage port 53 in the flowing direction, does not decrease in the pipe connecting member 1. That is, since the inner diameter D2 of the flange portion 22 is larger than the inner diameter D1 of the lower end portion of the projecting portion 532, the water passing through the pipe connection member 1 from the drain outlet 53 hardly receives resistance and flows smoothly. If the relationship of the inner diameters is reversed, water will come into contact with the upper surface of the flange portion 22 and receive resistance.

Most of the water that passes through the pipe connection member 1 from the drainage port 53 passes through the inside of the tubular member 20, but the water that spreads below the upstream side connection portion 11 is formed in the flange portion 22 of the tubular member 20. It flows from the cutout portion 221 into the tubular member 20.

Since the filter portion 211 is formed at the upper end of the tubular portion 21 of the tubular member 20, even if dust or the like is mixed in the water drained from the washbasin 5, the filter portion 211 blocks the water.

According to this embodiment, the following effects are achieved.
In the present embodiment, the pipe connection member 1 around the water is provided with a basin 5 for receiving the liquid supplied from the upstream side and draining the liquid from the drain port 53, and a drain pipe 6 arranged on the downstream side of the drain port 53. And connected. Further, the pipe connecting member 1 is formed in a tubular shape arranged along the flowing direction of water, and the downstream side connecting portion 12 fitted into the inner peripheral surface on the upper end side of the drainage pipe 6 and the drainage port 53 downward. The upstream connecting portion 11 that is attached so as to surround the protruding portion 532 and that is configured of an elastic member is configured. Furthermore, the downstream side connecting portion 12 is made to include an elastic member at least in part.

By configuring the upstream side connecting portion 11 with an elastic member such as rubber and forming at least a part of the downstream side connecting portion 12 with rubber, it is easy to fit the protruding portion 532 of the drainage port 53 and the drainage pipe 6 and to bring them into close contact with each other. It can be made easier and good sealing properties can be obtained. Since it is made of rubber, it can be easily deformed and can follow up even if the washbasin 5 vibrates in the vertical direction during construction and water supply and drainage and water leakage can be easily prevented. Further, since the upstream side connecting portion 11 is attached to the outer periphery of the protruding portion 532 and the downstream side connecting portion 12 is attached to the inner peripheral surface of the drain pipe, the washbasin 5 and the drain pipe 6 are connected, so that the pipe connecting member 1 is It can be miniaturized. Further, since it is not necessary to perform complicated processing such as the bottom surface of the cabinet in which the wash basin 5 is installed and the work of attaching the support member, the workability is improved. Further, by fitting the downstream side connecting portion 12 into the inner peripheral surface on the upper end side of the drainage pipe 6, the inner diameter is expanded from the downstream side connecting portion 12 to the drainage pipe 6 along the flowing direction, and the drainage port 53 The water passing through the pipe connecting member 1 is less likely to receive resistance and flows smoothly.

In the present embodiment, the rigidity of the downstream side connecting portion 12 is made higher than that of the upstream side connecting portion 11. By making the rigidity of the downstream side connecting portion 12 higher than that of the upstream side connecting portion 11, the downstream side is less likely to be crushed, the connection to the drainage pipe 6 is easy, the workability is improved, and the downstream side connection portion 12 is deformed. Therefore, it is possible to prevent the formation of a gap.

In the present embodiment, the outer peripheral side projection 121 is formed on the outer peripheral surface of the downstream side connecting portion 12 so as to protrude outward along the outer peripheral surface. Since the outer peripheral side convex portion 121 formed on the outer surface of the downstream side connecting portion 12 and the inner peripheral surface of the drainage pipe 6 are in close contact with each other, leakage of water from between the drainage pipe 6 and the downstream side connecting portion 12 is prevented. It

In the present embodiment, the boundary portion 13 between the lower end side of the upstream connecting portion 11 and the upper end side of the downstream connecting portion 12 is formed to be thicker than the upstream connecting portion 11 and the downstream connecting portion 12. ..
By forming the boundary portion 13 to be thicker than the upstream-side connecting portion 11 and the downstream-side connecting portion 12, the load applied when attaching the pipe connecting members 1 having different diameters to the boundary portion 13 and the internal flow It is possible to withstand the load, vibration in the vertical direction, and the like applied by the applied water, and it is possible to prevent breakage of the boundary portion 13.

In the present embodiment, the downstream side connecting portion 12 is arranged so as to extend along the cylindrical downstream side connecting portion body 120 continuous from the upstream side connecting portion 11 and the inner peripheral surface of the downstream side connecting portion body 120. The tubular member 20 having a rigidity higher than that of the upstream connecting portion 11 is included.
By arranging the tubular member 20 having a rigidity higher than that of the upstream connection portion 11 inside the downstream connection body 120, the downstream rigidity of the pipe connection member 1 is increased. This prevents the downstream side connecting portion 12 from being crushed. Further, excessive deformation of the downstream side connecting portion 12 is prevented, connection with the drainage pipe 6 is facilitated, and workability is improved.

In this embodiment, the tubular member 20 is configured to include the filter portion 211. By providing the filter part 211, when water flows through the hollow part of the tubular member 20, it is possible to block dust and the like mixed in the wastewater and prevent it from flowing to the drain pipe 6.

In the present embodiment, a flange portion 22 is formed at the upper end of the tubular member 20 so as to expand its diameter toward the outside, and a plurality of cutout portions 221 are cut out from the outer peripheral edge of the flange portion 22 toward the inner peripheral side. Formed. As a result, water that has not passed through the hollow portion of the tubular member 20 can flow from the cutout portion 221 to the drain pipe 6 via the downstream connecting portion 12, so that the water stays in the pipe connecting member 1. It also prevents cleaning and improves the cleanability.
In the present embodiment, the fixing member 30 for pressing and fixing the outer peripheral surface of the upstream side connection portion 11 is further included. The fixing member 30 makes it possible to more firmly fit the protruding portion 532 to the upstream connecting portion 11 and prevent the upstream connecting portion 11 from coming off the protruding portion 532.

In the present embodiment, the receiving portion is a pottery washbasin. The pipe connection member 1 can be applied to a washbasin 5 that is widely used for receiving parts around water.

In the present embodiment, the pipe connection structure 100 around water is configured to include the washbasin 5, the drain pipe 6, and the pipe connection member 1, and projects inward along the inner peripheral surface of the upstream connection portion 11. The inner peripheral side convex portion 112 is formed, and the engaging groove 533 that engages with the inner peripheral side convex portion 112 is formed on the outer peripheral surface of the protruding portion 532 of the drainage port 53. The upstream-side connecting portion 11 is reliably connected to the projecting portion 532 by the engagement between the inner peripheral side convex portion 112 and the engaging groove 533.

Although the preferred embodiments of the present invention have been described above, the present invention is not limited to the above-described embodiments and can be modified as appropriate.
FIG. 5 is a cross-sectional view of a pipe connecting member 1A according to another embodiment.
1 A of piping connection members are formed in the taper shape which the inner surface of the upper end of an upstream side connection part reduces in diameter as it goes downward from an upper end.
In the pipe connecting member 1A, the edge portion 111 that expands to the outside of the upstream connecting portion body 110 is not formed at the upper end of the upstream connecting portion body 110 in the upstream connecting portion 11. However, the inner surface of the upper end of the upstream side connecting portion 11 is formed with a slanted portion 111A that is slanted from the outer side to the inner side in a sectional view. If the inner surface of the upper end of the upstream side connecting portion 11 is formed in a tapered shape in which the diameter decreases inward as well from the upper end even with the inclined portion 111A, the inclined portion 111A is the back surface of the bottom surface portion 51 of the washbasin 5. Since the pipe fitting member 1 and the washbasin 5 are in close contact with each other, the workability is improved.

Further, in the above embodiment, the downstream side connecting portion 12 is constituted by the rubber downstream side connecting portion body 120 and the downstream side connecting portion body 120 and the tubular member 20 which is a separate body, but the present invention is not limited to this. Absent. The downstream connecting portion is thicker than the upstream connecting portion, and may be entirely made of rubber. At that time, the same member as the upstream connecting portion may be integrally connected, or may be formed of a different member. By configuring the downstream side connecting portion only with rubber, it is possible to easily manufacture and reduce the number of parts. Therefore, the manufacturing cost can be reduced.

Further, in the above-described embodiment, the washbasin 5 of the washbasin is described as an example of the receiving part, but the receiving part is not limited to this. The receiving part is not particularly limited as long as it connects a drain pipe and a container that receives and discharges discharged water, such as a toilet hand wash in a toilet or a hand wash bowl in a toilet room.

In addition, in the above-described embodiment, the filter portion 211 of the tubular member 20 is formed by a Mitsumata bar that divides the upper side of the hollow portion 23 into three directions, but the present invention is not limited to this. The filter portion 211 may be one in which the hollow portion 23 is divided into two or three or more portions, and may be one in which a mesh member is attached.

Although the liquid is simply described as water in the above description, it may include hot water, liquid detergent, or the like, and is not particularly limited.

Further, in the above-described embodiment, the upstream-side connecting portion main body 110 of the upstream-side connecting portion 11 is a cylindrical body extending with the same diameter, but the present invention is not limited to this. The diameter of the upstream connecting portion body itself may be gradually reduced from the upper end side to the lower end side. By reducing the diameter in this way, when the upstream side connecting portion 11 is attached to the projecting portion 532 of the drainage port 53, the fitting becomes tighter as it is fitted below the upstream side connecting portion body, and the sealing performance is improved. be able to.

Further, in the above embodiment, the protruding portion 532 does not reach the step between the upstream connecting portion 11 and the downstream connecting portion 12, but the position of the step may be arranged at a position where the protruding portion hits. By applying the protruding portion to the step, the range in which the protruding portion is inserted into the upstream connecting portion of the pipe connecting member may be known.

In the above embodiment, rubber is used as an example of the elastic member, but the elastic member is not limited to this. Any other material may be used as long as it is a material that can be brought into close contact with the protrusion 532 and the drain pipe 6 and can be flexibly deformed.

1 Pipe connection member 5 Washbasin (receiving part)
6 Drain pipe (piping)
11 upstream side connection part 12 downstream side connection part 13 boundary part 20 tubular member 22 flange part 30 fixing member 100 pipe connection structure 211 filter part 221 notch part 53 drainage port 112 inner peripheral side convex part 120 downstream side connection part body 121 Outer peripheral projection 532 Projection 533 Engagement groove

Claims (11)

A receiving portion that drains the liquid from a drain port that receives a liquid supplied from the upstream side, and a pipe connection member around water that connects a pipe that is arranged on the downstream side of the drain port,
The pipe connecting member is formed in a tubular shape arranged along the flowing direction of the liquid,
A downstream side connecting portion fitted to the inner peripheral surface on the upper end side of the pipe, and an upstream side connecting portion that is attached so as to surround the periphery of the protruding portion that protrudes downward from the drain port and that is configured by an elastic member, A pipe connection member around water, which has an elastic member in at least a part of the downstream connection portion. The pipe connection member around water according to claim 1, wherein the downstream side connection portion has higher rigidity than the upstream side connection portion. The pipe connection member around water, according to claim 1 or 2, wherein an outer peripheral convex portion is formed on the outer peripheral surface of the downstream side connecting portion so as to protrude outward along the outer peripheral surface. The boundary portion between the lower end side of the upstream side connecting portion and the upper end side of the downstream side connecting portion is formed to be thicker than the upstream side connecting portion and the downstream side connecting portion. The pipe connecting member around water according to any one of 3 above. The downstream side connecting portion is arranged so as to extend along a cylindrical downstream side connecting portion body that is continuous from the upstream side connecting portion and an inner peripheral surface of the downstream side connecting portion body, and the upstream side connecting portion Also has a tubular member with high rigidity, The pipe connection member around water according to any one of claims 1 to 4. The pipe connecting member around water according to claim 5, wherein the tubular member has a filter portion. A flange portion is formed on the upper end of the tubular member, the diameter of which expands outward.
The pipe connection member around water according to claim 5 or 6, wherein a plurality of cutouts are formed that are cut out from the outer peripheral edge of the flange portion toward the inner peripheral side. The pipe connection member around water according to claim 2, wherein the downstream side connection portion is configured only by the elastic member. The pipe connection member around water according to any one of claims 1 to 8, further comprising a fixing member that presses and fixes the outer peripheral surface of the upstream-side connecting portion. The pipe connection member around water according to any one of claims 1 to 9, wherein the receiving portion is a washbasin made of earthenware. It has the said receiving part, the said piping, and the piping connection member around the water of any one of Claims 1-10,
The inner peripheral surface of the upstream connecting portion is formed with an inner peripheral protruding portion that protrudes inward along the inner peripheral surface,
A pipe connection structure around water, in which an engaging groove that engages with the inner peripheral side convex portion is formed on an outer peripheral surface of the protruding portion of the drainage port.

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