JP2007100356A - Joint for siphon drain - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To solve problems in a convention joint wherein not only layout is difficult since the number of connection parts is large, but also water leakage may occur from the connection portions and the removal of an article is extremely difficult when the joint is clogged with the article since a reduced diameter portion is apart from a trap portion. <P>SOLUTION: This joint for siphon drain is formed by forming a drain introduction part enabling insertion of a drain pipe from a washbasin and a sink therein integrally with a reduced diameter drain outlet connected to a lateral pipe for siphon drain. The joint comprises a joint base, a through-part inserted into the drain pipes of the washbasin and the sink, and a cap nut having a female screw part threaded with the male screw. The joint base comprises a recess for storing a sealing ring in the drain introduction part and a male screw part engraved on the outside of the drain introduction part. 1: Joint base; 1a: Drain introduction part; 1b: Drain outlet part; 1c: Reduced diameter part; 2: Cap nut; 2a: Through-part; 3: Sealing ring; 11: Drain pipe; A: Joint of this invention. <P>COPYRIGHT: (C)2007,JPO&INPIT

Description

  The present invention relates to a joint used for siphon drainage, and particularly relates to a joint used for connection with a drain pipe from a basin, a sink or the like.

  Siphon drainage systems are being developed rapidly in recent years, and no joint suitable for this system has been developed. More specifically, there are no joints used in basins and sinks for siphon drainage, and existing reducers and incrementers are joined together. For example, the diameter of 40-50A is reduced to about 20A. It was done to reduce the diameter until construction.

  FIG. 1 shows a joint in the case of general drainage. For example, a connecting joint 12 having a pipe diameter of 50A and an elbow pipe 13 having a pipe diameter of 50A are connected to a basin drain pipe 11 having a pipe diameter of 32A. The drainage horizontal pulling pipe 14 having a pipe diameter of 50A is connected to this with a certain gradient. Each tube is, for example, a PVC tube.

  However, in the case of siphon drainage, as shown in FIG. 2, a connecting joint 12 having a pipe diameter of 50A and an elbow pipe 13 having a pipe diameter of 50A are connected to a basin drain pipe 11 having a pipe diameter of 32A. 50A connecting joint 15 is connected, and the diameter of the pipe is reduced from 50A to 40A by the increaser 16, and further the diameter of the pipe is reduced from 40A to 20A by the reducer 17. A horizontal pulling pipe 18 having a pipe diameter of 20A is connected to this with no gradient. Each tube is also a PVC tube.

  Speaking of the connecting joint 12, as shown in FIG. 3, a fitting 12 a having an inner diameter of 32 A at one end and an inner diameter of 50 A at the other end is fitted into the basin drain pipe 11 having a pipe diameter of 32 A, and formed outside the one end side. The cap nut 12c is screwed onto the male screw 12b. In the figure, 12d is a water stop ring for preventing water leakage, and is pressed when the cap nut 12c is screwed.

  As can be seen from these figures, there are many connection points, which is not only troublesome to lay, but also water leakage from each connection point may occur. Further, since the portion to be reduced in diameter is separated from the trap portion, it is very difficult to remove this when an object is clogged.

  Further, the cap nut-shaped joint to be connected to the instrument is normally connected to a pipe diameter of 50A. On the other hand, if it is a basin, it is piped with a diameter of 32A and a sink of 38A diameter. Since it was connected to 50A and this was connected to 20A, it was overspecial, and there was also a problem in terms of maintenance.

  This invention is made | formed in view of the above prior arts, and provides the coupling for siphon drainage used by connecting to drain pipes, such as a wash basin and a sink with the connection location reduced as much as possible.

  The gist of the present invention is to integrally form a drainage introduction part capable of inserting a drainage pipe such as a basin and a sink and a drain outlet part having a reduced diameter connected to a horizontal pipe for siphon drainage. A joint base having a recess for storing a water stop ring inside the introduction part and a male screw part engraved on the outside of the drainage introduction part, a penetration part inserted into a drain pipe such as a wash basin and a sink, and the male part The present invention relates to a siphon drainage joint characterized by comprising a cap nut having a female thread portion screwed onto a screw.

  The configuration of the present invention is as described above, and is basically a joint that is a combination of two members, a joint base formed integrally with a drainage introduction part, a reduced diameter part, and a drainage outlet part, and screwed into this. It is a joint consisting of a cap nut that has a small effect on the cost, because it has a small number of parts, is inexpensive and has good workability during installation, and the number of connection points is extremely small, so the risk of water leakage is greatly reduced. Is brought about.

  The present invention is a combination of a cap nut-like joint connected to a drain pipe from a wash basin, a sink, etc. and a connection of a pipe of about 20A used for siphon drainage. It is a cap nut-shaped joint used as a method of connecting to the sink, and the other side is shaped to be connected to a pipe of about 20A used for siphon drainage, and the diameter-expanded part and the connection part have been eliminated in the middle It is a feature. In other words, in the conventional means, when waste water from a wash basin, a sink, etc. is treated with siphon waste water, it is possible to connect by connecting a plurality of joints by one joint. It is.

  The joint base and the cap nut may be made of resin or metal. Examples of the resin are PVC, ABS, PP and the like, but are not limited thereto.

  And in the siphon drainage, there is a risk of clogging solids in the reduced diameter part, but by using the joint of the present invention, the clogged solids do not go to the back of the pipe, but stop at the joint part, Maintenance has become easier. Furthermore, in the conventional means, it has been necessary to expand the diameter to 50 A once. However, in the joint according to the present invention, this is not necessary, and it is a matter of course that the laying workability is improved. Etc. also became excellent.

  The positional relationship between the drainage outlet and the drainage introduction part is arbitrary, but specifically, the drainage outlet part is arranged in a vertical direction, an inclined direction, a lateral direction, etc. with respect to the drainage introduction part, and is at the floor level. It can be arbitrarily selected according to the space relationship between the slab level and the direction of the drainage stack.

  In addition, it is preferable that the diameter-reduced portion of the joint base is located directly below the drainage introduction portion, and this clogs the solid matter closer to the cap nut, and therefore the man-hours for removing this are remarkably simplified. .

  Hereinafter, the present invention will be described in more detail with reference to examples. FIG. 4 is a partially cutaway view of a siphon drainage joint A such as a wash basin and a sink according to the present invention, wherein 1 is a joint base and 2 is a cap nut. The joint base 1 is made of polyvinyl chloride, and is formed by integrally forming a drain introduction part 1a and a drain outlet part 1b. And the reduced diameter part 1c is arrange | positioned directly under the waste_water | drain introduction part 1a. These are examples that are formed in a straight line and vertically downward in the illustrated example, and are specifically preferred for drainage drainage in a detached house having a space under the floor, for example.

  The drainage introduction part 1a has an inner diameter that allows the drainage pipe 11 to be inserted from a wash basin, a sink or the like. In this example, the inner diameter is 50A. The inner diameter is, for example, 32A for a wash basin (25A for some hand wash basins) and 38A for a sink, as long as the straight pipe used in these instruments can be inserted. The reduced diameter portion 1c has an inner diameter of 20A, which is directly connected to the drain outlet 1b, and the drain outlet 1b is used for siphon drainage. A male screw portion 1d is engraved on the outer peripheral surface of the drainage introduction portion 1a.

  As the shape on the outlet side, the size is about 20A generally used in siphon drainage, but the shape is arbitrary. By making the diameter the same as that of PVC 20A as shown in the figure, it is possible to connect to a PVC pipe using a 20A socket, or to other pipe materials using a conversion joint. Moreover, the shape which can be directly connected to other pipe materials is also preferable.

  The cap nut 2 is provided with a penetrating portion 2a that allows the drainage pipe 11 to be inserted at the top thereof, and a female screw portion 2b that can be screwed with the male screw portion 1d is formed on the inner peripheral surface thereof. The drainage pipe 11 and the joint A of the present invention are connected by inserting the drainage pipe 11 into the penetrating part 2a and screwing both the threaded parts 1d and 2b. In addition, in order to prevent water leakage from the connection portion between the drain pipe 11 and the joint A, a recess 1e to which the water stop ring 3 is attached is formed on the inner peripheral side of the drain introduction portion 1a, and the water stop ring 3 is attached here. It is good to keep. The penetrating part 2a is, for example, 32A for a wash basin (25A for some hand wash basins) and 38A for a sink.

  In the figure, 1f is a fin provided in the joint base 1, and is an example in which the joint base 1 can be easily attached to the floor F.

  By using such a siphon drainage joint A, the number of parts is small and inexpensive compared to a joint constructed by combining a conventional increaser or reducer, and the joint can be made compact. It was a joint with excellent workability. Moreover, since there are very few connection parts, the occurrence of water leakage can be almost ignored.

  Further, the characteristics of such a joint will be described. Since the inflow of solid matter from a wash basin, a sink, etc. stays in the reduced diameter portion 1c close to the drainage introduction port 11 described above, the cap nut 2 can be easily screwed off. It is possible to eliminate the solid matter. In this respect, in the case of using the conventional means, the solid material flows into the reducer or reducer portion having a diameter reducing function, and it is extremely difficult to remove it.

  If the position of the drain outlet 1b is further illustrated, FIG. 5 is a partially cutaway view of the siphon drain joint B such as a basin / a sink according to the present invention, and the drain outlet 1b is bent sideways with an R. It is. In this example, the joint is preferably used when it is difficult to make a space under the floor. In this example, the drain outlet 1b is provided sideways.

  FIG. 6 is a modification of the joint of FIG. 5 (joint C), in which the drain outlet 1b is formed in contact with the reduced diameter portion 1c, and is a preferred form when there is no space. .

  FIG. 7 shows a joint D in which the drain outlet 1b is provided with an inclination, and a horizontal pulling pipe can be connected to the joint D to make it horizontal.

  The present invention is a siphon drainage joint having the above-described configuration, and is preferably used for a wash basin, a sink, etc., but its use range is not particularly limited, and is also used for drainage of, for example, a washing machine. Of course you can.

FIG. 1 is a side view showing a joint in the case of conventional general drainage. FIG. 2 is a side view showing a siphon drainage joint using an existing connecting member. FIG. 3 is a partially cutaway view showing an outline of an existing connecting member. FIG. 4 is a partially cutaway view of the siphon drainage joint A of the present invention. FIG. 5 is a side view of the siphon drainage joint B of the present invention. FIG. 6 is a partially cutaway view of the siphon drainage joint C of the present invention. FIG. 7 is a side view of the siphon drainage joint D of the present invention.

Explanation of symbols

1 ... Joint base,
1a: Drainage introduction part,
1b: Drain outlet,
1c: Reduced diameter part,
1d ... male thread,
1e ... depression,
1f Fins,
2 ... Cap nut,
2a ... penetrating part,
2b ... female thread,
3. Stop ring,
11 Drain pipe,
A, B, C, D: Joints of the present invention.

Claims (5)

  A drainage introduction part that allows insertion of a drainage pipe from a wash basin, sink, etc. and a drainage outlet part with a reduced diameter connected to a horizontal pipe for siphon drainage are formed integrally, inside the drainage introduction part A joint base provided with a recess for storing a water stop ring and a male threaded portion engraved on the outside of the drainage introduction part, a through part inserted into a drain pipe of a basin / a sink, and a female threadedly engaged with the male thread A siphon drainage joint comprising: a cap nut having a threaded portion.   The siphon drainage joint according to claim 1, wherein the drainage outlet portion is formed vertically downward with respect to the drainage introduction portion.   The joint for siphon drainage according to claim 1, wherein the drainage outlet portion is formed obliquely with respect to the drainage introduction portion.   The joint for siphon drainage according to claim 1, wherein the drainage outlet portion is formed sideways with respect to the drainage introduction portion.   The joint for siphon drainage according to any one of claims 1 to 4, wherein the reduced diameter portion of the joint base is located directly below the drainage introduction portion.

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