JP2015165064A - Mounting structure for drainage system - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a mounting structure for a drainage system, including a nut member which is used for mounting the drainage system having a protruded part such as a pipe connection part on the side face, into a mounting hole of equipment or others, while reducing the total height (the width in the axial direction of a male screw part) of a drainage system body.SOLUTION: The mounting structure for the drainage system includes the drainage system body consisting of a cylindrical body part formed in a bottomed cylindrical shape, a flange part provided on the outside face of the cylindrical body part while being protruded along the peripheral edge, the mail screw part provided on the outside face of the cylindrical body part at the further bottom face side than the flange part, and a protruded part provided on the cylindrical body part at the further bottom face side than the male screw part while being protruded in the direction of the outside face, and the nut member formed in an approximately cylindrical shape, and having a female screw part on the inside face so as to be threaded to the male screw part of the drainage system body. At the end of the nut member, arranged on the side of the protruded part, a cutout part is provided corresponding to the protruded part of the drainage system body.

Description

  TECHNICAL FIELD The present invention relates to a drainage device mounting structure, and more particularly, a drainage device using a nut member that attaches a drainage device provided with a protruding portion such as a pipe connection portion on a side surface to a mounting hole of equipment using a nut member. The present invention relates to an apparatus mounting structure.

Conventionally, in order to treat the generated drainage in equipment that generates drainage by use, such as sinks, washstands, and bathtubs (hereinafter referred to as “drainage equipment”), a drainage device is attached to the bottom of the tank body of the drainage equipment, A method of discharging waste water from a drain port of a drainage device to a sewage side through a drain pipe constituted by a tubular body or the like is widely known.
Below, an example of the drainage piping of the drainage piping which employ | adopted the attachment structure of the conventional drainage apparatus is demonstrated.

The drainage device and drainage piping adopting the conventional drainage device mounting structure described in Patent Document 1 are members such as a sink, drainage device main body, nut member, trap member, connection piping, etc. as drainage devices described below. It consists of In addition, the upper and lower sides in the following description are demonstrated based on the upper and lower sides at the time of completion of construction in the following description of the conventional example.
The sink is composed of a sink that is a box body that is open at the top, and a cabinet on which the sink is mounted. Further, the bottom surface of the sink is provided with a mounting hole for attaching the drainage device main body.
The drainage device main body is a bottomed cylindrical member, and includes a discharge port as a pipe connection portion with a pipe body which is another drainage device on the outer surface.
Further, the drainage device main body is provided with a flange portion projecting outward at the periphery of the opening portion at the upper end, which forms a drainage port through which drainage in the sink flows.
Further, the drainage device main body is provided with a male screw portion below the flange portion.
The nut member is formed in a substantially cylindrical shape, and has a pressing portion at the upper end thereof that comes into contact with the lower surface of the flange portion via the periphery of the mounting hole when construction is completed. Moreover, the internal thread part of the cylindrical shape is provided with the internal thread part screwed together with the external thread part of the drainage device main body.
In addition, a plurality of rib pieces are provided on the outer surface of the cylindrical portion to serve as grip portions when the nut member is rotated.
The connection pipe is a pipe member made of a pipe body such as a straight pipe or a bent pipe, and connects from the discharge port on the side surface of the drainage device main body to the underfloor pipe connected to the sewage side. This connection pipe is disposed along the bottom surface of the sink and the inner side surface of the cabinet, and is provided at a midway position via a trap member described later.
The trap member is a member obtained by bending a tubular body into a substantially S-shape, and forms a drainage accumulation portion in the inside thereof when in use. This drainage pool part fills a part of the flow path inside the trap member, and odors and pests from the sewage side cannot enter the indoor side from the full part. To prevent intrusion. Such a function of preventing odors and pests from the sewage side from entering the indoor side is called a “trap function”.
Although not described in detail, bonding, packing and cap nuts, etc. are used in places where watertight connection is required at each connection point of the piping, such as the drainage device main body, sink and each piping member. A watertight connection is made.

The drainage device and drainage pipe configured as described above are applied to the sink of the sink that is a tank body as follows.
First, the drainage device main body is inserted into the mounting hole on the bottom surface of the sink from above, so that the lower surface of the flange portion comes into contact with the upper peripheral edge of the mounting hole on the bottom surface of the sink. Next, the nut member is inserted from the discharge port, and is vertically rotated in the direction of the arrow in FIG. 28, so that the shaft of the male screw portion of the drainage device main body and the shaft of the female screw portion of the nut member coincide ( In order to make the center axis of this male screw part and the female screw part coincide, the operation of rotating the nut member vertically around the base part of the protruding part is called "rotation to make the screw shafts coincide" Distinction from rotation). Then, by rotating the nut member around the axis of the female screw portion, the end portion of the male screw portion and the end portion of the female screw portion face each other and screwing is started.
When the nut member is rotated as it is, screwing of the drainage device main body and the nut member proceeds, and the upper surface of the pressing portion at the upper end of the nut member strongly contacts the lower surface of the peripheral edge of the mounting hole on the bottom surface of the sink. As a result, the peripheral edge of the attachment hole can be strongly held between the lower surface of the flange portion and the upper surface of the pressing portion, and the drainage device main body can be attached to the attachment hole of the sink.
After this, from the outlet to the pipe under the floor, via a trap member in the middle, connected by a connecting pipe using a straight pipe, a bent pipe, etc. Piping construction is completed.

In the drainage pipe of the sink constructed as described above, when drainage is generated in the sink using the sink, the drainage passes through the drainage port from the sink and is discharged from the discharge port on the side surface of the drainage device, and trapped. It passes through the connecting pipe through the member, and is finally discharged from the underfloor pipe to the sewage side.
Further, when the drainage is accumulated inside the trap member, a part of the drainage channel of the trap member is filled with water. This produces a trap function that prevents odors and pests from flowing back from the sewage side.

JP-A-2005-344400

The conventional drainage device mounting structure configured as described above has the following problems.
In the above-described conventional example, there is a demand for reducing the overall height of the drainage device such as the drainage device body attached to the drainage device as much as possible.
Specifically, in the case of a drainage device to be constructed on a wash basin or sink, the drainage device main body is placed in the cabinet as in the conventional example, but if the inside of the cabinet is a wash basin, soap, detergent, If it is a sink, such as a towel, it is used as a storage space for cooking utensils, seasonings, etc., and it is preferable to make the structure that obstructs storage such as a drainage device as thin as possible so that it does not become an obstacle .
Also, in the case of a drainage device body used for bathrooms and washing machine pans, the drainage device body is placed in the piping space under the floor, but if the vertical height of the drainage device can be reduced, the drainage device can be used at the housing design stage. Considering the overall height of the main body, the vertical height of the space in the underfloor piping can be reduced accordingly. In a condominium or the like, when the height of each floor is determined, the living space becomes wider up and down as the underfloor space becomes narrower, which is preferable for residents.
However, as in the conventional example, in the drainage device main body that has a protruding portion such as a discharge port on the side surface of the drainage device main body and is attached using a nut member, There was a limit.
Specifically, when the periphery of the mounting hole is sandwiched between the lower surface of the flange portion of the drainage device main body and the upper surface of the pressing portion of the nut member, the male thread portion of the drainage device main body and the female thread portion of the nut member are screwed together. Since it does, when starting screwing, it is necessary to arrange | position a nut member in the lower end of a male screw part.
However, a discharge port is provided as a protruding portion in the side surface direction of the drainage device main body, and the height width from the lower end of the male screw portion to the upper end of the discharge port is at least on the upper end side of the female screw portion of the nut member. If it is not wider than the width from the end to the lower end of the nut member, the lower end of the nut member may interfere with the drainage port (projection), and the center axis of the male screw part and the female screw part may coincide. It becomes impossible.
Actually, when the nut member is rotated as indicated by an arrow in FIG. 28, a margin for rotation, so-called “play” is also required.
For this reason, the drainage device main body of the conventional example includes at least the height width of the male screw portion of the discharge port (projecting portion), the height width from the upper end of the female screw portion of the nut member to the lower end of the nut member, and the flange portion. A height width that is the sum of the height widths of the protruding portions such as the discharge ports was necessary.
The present invention has been invented in view of the above problems, and uses a nut member that attaches a drainage device provided with a protruding portion such as a pipe connection portion on a side surface to an attachment hole of an apparatus or the like using a nut member. In the drainage device mounting structure, the overall height of the drainage device main body (the axial width of the male screw portion) is narrowed.

The present invention described in claim 1 is a bottomed cylindrical cylindrical body part, a flange part protruding from the outer surface of the cylindrical part along the periphery, and a bottom part side of the flange part of the cylindrical body part. A drainage device main body comprising a male screw portion provided on the outer surface, a protruding portion provided so as to protrude toward the outer surface direction on the bottom side of the male screw portion of the cylindrical body portion,
A nut member having a substantially cylindrical shape and a female screw part screwed into the male screw part of the drainage device main body on the inner surface;
The drainage device mounting structure is characterized in that a cutout portion corresponding to the projection of the drainage device body is provided at an end of the nut member that is disposed on the projection side.
In addition, the “notch corresponding to the protrusion” in claim 1 and claim 5 means a notch having a shape in which a part of the protrusion can be arranged. The shape of the notch is not particularly limited as long as a part of the protruding portion can be disposed inside.

According to a second aspect of the present invention, in the drainage device connection structure, when the nut member is inserted into the drainage device body and the notch portion of the nut member is disposed on the protruding portion of the drainage device body in the axial direction. ,
Paragraph 0008 is characterized in that the male threaded portion of the drainage device body and the female threaded portion of the nut member are arranged at positions where the respective screwing start side ends are close to each other in the axial direction and do not interfere with each other. It is the attachment structure of a drainage device.

The present invention according to claim 3 is a cylindrical body portion having a bottomed substantially cylindrical shape, a flange portion provided on the outer surface of the cylindrical body portion so as to protrude along the peripheral edge, and a bottom surface of the cylindrical body portion from the flange portion. A drainage device main body comprising a male screw portion provided on the outer side surface, a projecting portion provided so as to protrude in the outer surface direction on the bottom surface side of the male screw portion of the cylindrical body portion;
A nut member having a substantially cylindrical shape and a female screw portion screwed onto the male screw portion of the drainage device main body on the inner surface;
The drainage device main body and the nut member respectively provided with a mark structure for the drainage device main body and the nut member,
By the mark structure, each screwing start side end portion of the male screw portion of the drainage device main body and the female screw portion of the nut member can be disposed in the vicinity of the axial direction view and not interfering with each other. This is a mounting structure structure.

  According to a fourth aspect of the present invention, in the drainage device connection structure, the mark structure of the drainage device main body is also used in the protruding portion of the drainage device main body. It is a mounting structure.

  According to a fifth aspect of the present invention, in the drainage device connection structure, the mark structure of the nut member corresponds to a protruding portion of the drainage device main body provided at an end portion of the nut member arranged on the protruding portion side. The drainage device mounting structure described in paragraph 0008 is the drainage device mounting structure described in paragraph 0010 or paragraph 0011, wherein the drainage device mounting structure is a cutout portion.

  The present invention described in claim 6 is characterized in that the screwing end side end portion of the female screw portion is at the same position as the notch portion of the nut member and the central axis direction of the nut member, The drainage device mounting structure according to paragraph 0009 or paragraph 12.

The present invention described in claim 7 is a bottomed cylindrical tubular body portion, a flange portion protruding from the outer surface of the tubular body portion along the periphery, and a bottom surface side of the flange portion of the tubular body portion. A drainage device main body comprising a male screw portion provided on the outer surface, a protruding portion provided so as to protrude toward the outer surface direction on the bottom side of the male screw portion of the cylindrical body portion,
A nut member having a substantially cylindrical shape and a female screw part screwed into the male screw part of the drainage device main body on the inner surface;
In the drainage device main body, a notch portion corresponding to the nut member is provided on the protruding portion side of the male screw portion.

  The present invention according to claim 8 is characterized in that, in the drainage device connection structure, the protruding portion of the drainage device body is a pipe connection portion with another drainage device. It is the attachment structure of the drainage apparatus as described in any one.

According to the first aspect of the present invention, the notch portion corresponding to the protruding portion is provided at the end portion of the nut member that is disposed on the protruding portion side, so that the center axes of the male screw portion and the female screw portion coincide with each other. Therefore, when the nut member is vertically rotated around the base portion of the protruding portion, that is, when the rotation is performed to match the screw shaft, a play space is created by the notch portion, and the screw shaft is matched. It can be very easy to rotate.
According to the second and third aspects of the present invention, when the center axes of the male screw portion and the female screw portion are made to coincide with each other using the notch portion and the projecting portion or the mark structure, the male screw of the drainage device body And the screwing start side end portions of the female screw portion of the nut member are arranged in the vicinity of the axial direction view and not interfering with each other. Thereby, without changing the number of turns of the screw of the male screw part and the female screw part, the height width from the screwing start side end part of the male screw part to one pitch of the screw part, The overall height of the drainage device main body can be lowered.
In the present invention described in claim 4, the mark structure of the drainage device main body and in the present invention described in claim 5 of the nut member can be specifically clarified.
Furthermore, in the invention described in claim 5, the notch portion corresponding to the projecting portion is provided in the lower end portion of the nut member, and this is used as a mark structure, so that the central axes of the male screw portion and the female screw portion are made to coincide. Therefore, during the work of rotating the nut member vertically around the root part of the protrusion, that is, the work of rotating to match the screw shaft, there is a free space by the notch part, and the rotation to match the screw shaft. Can be made very easy.
In this invention of Claim 6, the notch part is provided by providing the threading completion | finish side edge part of the internal thread part in the same position in the notch part of a nut member, and the central-axis direction of a nut member. In this case, it is possible to eliminate the fact that a part of the female screw portion is deleted by the notch and the screwing strength is lowered.
In the invention according to claim 7, by providing a notch portion corresponding to the nut member on the protruding portion side of the male screw portion of the drainage device main body, the central axes of the male screw portion and the female screw portion are made to coincide with each other. Therefore, during the work of rotating the nut member vertically around the root part of the protrusion, that is, the work of rotating to match the screw shaft, there is a free space by the notch part, and the rotation to match the screw shaft. Can be made very easy.
In this invention of Claim 8, the structure of a protrusion part can be clarified.

It is sectional drawing which shows the construction state of the sink of a 1st Example. It is a front view of the drainage device main part and nut member of the first example. It is a perspective view of a drainage device main part and a nut member of the first example. It is the front view which notched the discharge port of the drainage device main part of the 1st example. It is sectional drawing of the nut member of a 1st Example. It is a bottom view of the nut member of the first embodiment. It is a perspective view from the lower part of the nut member of a 1st Example. It is sectional drawing which shows the construction procedure of the drainage device main body of a 1st Example. It is sectional drawing which shows the construction procedure of the drainage device main body of a 1st Example. It is sectional drawing which shows the construction procedure of the drainage device main body of a 1st Example. It is sectional drawing which shows the construction procedure of the drainage device main body of a 1st Example. It is the front view which notched the discharge port of the drainage device main body in the state of FIG. FIG. 13 is a reference diagram for illustrating the arrangement of screw parts in the state of FIG. 12. It is A-A 'sectional drawing of FIG. It is sectional drawing which shows the construction procedure of the drainage device main body of a 1st Example. It is sectional drawing which shows the construction procedure of the drainage device main body of a 1st Example. It is sectional drawing which shows the construction state of the sink of a 2nd Example. It is a front view of the drainage device main part and nut member of the 2nd example. It is a perspective view of the drainage device main part and nut member of the 2nd example. It is a top view of the drainage device main part of the 2nd example. It is a top view of the nut member of the 2nd example. It is sectional drawing which shows the construction procedure of the drainage device main body of a 2nd Example. It is sectional drawing which shows the construction procedure of the drainage device main body of a 2nd Example. It is the front view which notched the discharge port of the drainage device main body in the state of FIG. It is B-B 'sectional drawing of FIG. It is sectional drawing which shows the construction procedure of the drainage device main body of a 2nd Example. It is sectional drawing which shows the construction procedure of the drainage device main body of a 2nd Example. It is sectional drawing which shows the construction state of the sink of a prior art example.

Below, the 1st example of the present invention is described, referring to drawings. 4, 12, and 13, the discharge port 1 c is illustrated by being cut at a position not including the screw portion of the discharge port 1 in order to show the upper surface of the discharge port 1 c that is a protruding portion.
The drainage device and drainage pipe adopting the drainage device mounting structure according to the first embodiment of the present invention shown in FIGS. 1 to 16 are the sink N, drainage device main body 1 and nut member as the drainage device described below. 3. It is comprised from members, such as the trap member T and the connection piping P. In addition, the upper and lower sides in the following description are demonstrated based on the upper and lower sides at the time of completion of construction in description of the following Example.
The sink N includes a sink S that is a box body that is open at the top, and a cabinet C on which the sink S is mounted. The bottom surface of the sink S is provided with a mounting hole H for attaching the drainage device main body 1.
The drainage device main body 1 is a bottomed cylindrical member, and includes a discharge port 1c which is a protruding portion and a pipe connection portion with a pipe body which is another drainage device on an outer surface.
Further, the drainage device main body 1 includes a flange portion 1a protruding outward at the periphery of the opening portion at the upper end forming the drainage port 1b into which the drainage in the sink S flows.
Further, the drainage device main body 1 is provided with a male screw portion 2 below the flange portion 1a.
The nut member 3 is formed in a substantially cylindrical shape, and has a pressing portion 3a that abuts the lower surface of the flange portion 1a via the periphery of the mounting hole H at the time of completion of construction. Moreover, the internal thread part 4 screwed together with the external thread part 2 of the drainage device main body 1 is provided in the cylindrical inner surface.
In addition, a plurality of rib pieces 3b are provided on the outer surface of the cylindrical portion, which are gripped portions when the nut member 3 is rotated.
Further, the nut member 3 is provided with a notch portion 5 having the following characteristics at the end portion on the side opposite to the pressing portion 3a, that is, the lower end side facing the discharge port 1c side which is a protruding portion when the construction is completed. It is provided.
The cutout portion 5 has a shape corresponding to the discharge port 1 c that is a protruding portion of the drainage device main body 1. Specifically, it has a notch portion 5 having a diameter that is the same as or larger than the outer diameter of the upper surface of the discharge port 1c having a substantially cylindrical shape, and is temporarily inside the notch portion 5 during construction. The upper part of the discharge port 1c can be stored.
In the state where the central axis of the male screw part 2 of the drainage device main body 1 is aligned with the central axis of the female screw part 4 of the nut member 3 and the upper part of the discharge port 1c is stored inside the notch part 5, The direction of the nut member 3 with respect to the drainage device main body 1 is determined as viewed from the central axis direction of the screw portion. In this state, when viewed in the axial direction, the respective threading start side end portions of the male screw portion 2 of the drainage device main body 1 and the female screw portion 4 of the nut member 3 are arranged in the vicinity and at positions where they do not interfere with each other.
More specifically, the screwing start side end portion 2a of the male screw portion 2 of the drainage device main body 1 is an end portion on the lower side of the male screw portion 2 that first comes into contact with the female screw portion 4 of the nut member 3, simply “ Not only the “lower end of the male screw portion 2”, but also the spiral end of the screw portion.
Further, the screwing start side end portion 4 a of the female screw portion 4 of the nut member 3 is an upper end portion of the female screw portion 4 that first contacts the male screw portion 2 of the drainage device main body 1. This also indicates not only the “upper end of the female screw portion 4” but also the spiral end of the screw portion.
And “the position where the respective threading start side ends of the male threaded portion 2 of the drainage device body 1 and the female threaded portion 4 of the nut member 3 are in the vicinity and do not interfere with each other” in FIG. As shown, the end portions on the screwing start side of the male screw portion 2 and the female screw portion 4 are close to each other in the axial direction view, in plan view in the embodiment (the central axes of the male screw portion 2 and the female screw portion 4 are the same). It is in a state where the center is within an angle of about 45 degrees and the ends of both screw portions do not overlap each other.
Further, in the cutout portion 5, the screwing end side end portion 4 b of the female screw portion 4 is in the same position as the cutout portion 5 of the nut member 3 and the central axis direction of the nut member 3.
More specifically, first, an end on the lower side of the female screw portion 4 which finally comes into contact with the male screw portion 2 of the drainage device main body 1 is connected to the end portion 4 b of the female screw portion 4 of the nut member 3. (I.e., the end opposite to the above-mentioned "screwing start side end 4a of the female screw part 4". Depending on the thickness of the peripheral edge of the mounting hole H, the screwing is performed up to the screwing end side end. May not reach). This also indicates not only the “lower end of the female screw portion 4”, but also the spiral end of the screw portion.
As shown in FIG. 5, “the threaded end side end 4 b of the female screw part 4 is in the same position in the central axis direction of the nut member 3 as the notch part 5 of the nut member 3”. This means that the threading end side end 4b of the female screw part 4 and the notch part 5 are at the same height in the central axis direction of the screw part, in the vertical direction in the figure. Thereby, the notch part 5 will be provided in the location which does not have the female screw part 4 adjacent to the screwing end side end part 4b of the female screw part 4, and the female screw part 4 is divided by the notch part 5. , Screwing is not weakened.
In addition, the notch part 5 is provided in the intermediate part of the two rib pieces 3b of the eight rib pieces 3b arrange | positioned at 45 degree intervals along the outer periphery of the nut member 3 seeing axial direction. For this reason, a part of rib piece 3b is not deleted by the notch part 5, but the intensity | strength does not fall.
The connection pipe P is a pipe member made of a pipe body such as a straight pipe or a bent pipe, and connects from the discharge port 1c on the side surface of the drainage device main body 1 to the underfloor pipe connected to the sewage side. The connection pipe P is disposed along the bottom surface of the sink S and the inner side surface of the cabinet C, and is provided at a midpoint via a trap member T described later.
The trap member T is a member obtained by bending a tubular body into a substantially S-shape, and forms a drainage accumulation portion in the inside thereof when in use. This drainage reservoir part fills a part of the flow path inside the trap member T, and odors and pests from the sewage side cannot enter the indoor side from the full part. Will be prevented from entering. Such a function of preventing odors and pests from the sewage side from entering the indoor side is called a “trap function”.
Although not described in detail, the drainage device main body 1, the sink S, each piping member, etc., where the watertight connection is required at each connection portion of the piping, bonding, packing and cap nuts, etc. are used. And a watertight connection is made.

The drainage device and drainage pipe configured as described above are applied to the sink S of the sink N which is a tank body as follows.
First, the drainage device main body 1 is inserted into the mounting hole H on the bottom surface of the sink S from above, so that the lower surface of the flange portion 1a is in contact with the peripheral upper surface of the mounting hole H on the bottom surface of the sink S. Next, as shown in FIGS. 8 to 10, the nut member 3 is inserted from the discharge port 1c, and rotation for rotating the screw shaft to coincide with the nut member 3 (rotation in the arrow direction in FIG. 8) is performed. Do.
At this time, the direction of the nut member 3 is adjusted, and the cutout portion 5 and the discharge port 1c are arranged in the same direction in plan view. When the rotation for matching the screw shaft is performed from this state, the outlet 1c of the drainage device main body 1 is accommodated in the notch 5 of the nut member 3 as shown in FIG. Is in a state of straddling the discharge port 1c, and the screw shafts coincide. The rotation operation for making the screw shafts coincide with each other is facilitated by providing a notch portion 5 in the nut member 3 so that a relatively wide play space can be provided between the nut member 3 and the discharge port 1c. It can be carried out. However, in this state, since the lower end portion of the nut member 3 other than the notch portion 5 is below the upper end of the discharge port 1c, the nut member 3 cannot be rotated around the central axis of the screw.
In this state in which the central axis of the male screw portion 2 and the central axis of the female screw portion 4 coincide, the nut member 3 is positioned with respect to the drainage device main body 1 by the notch portion 5 and the discharge port 1c. 12 and 13, when viewed from the axial direction, the respective threading start side ends of the male threaded portion 2 of the drainage device main body 1 and the female threaded portion 4 of the nut member 3 are adjacent and interfere with each other. It is arranged at a position that does not.
This will be described in detail below with reference to FIG. In the simplified diagram of FIG. 13, the top of the crest of the female screw portion 4 on the near side of the nut member 3 is indicated by a dotted line in the drawing. More specifically, the nut member 3 is raised for screwing, as is apparent from the simplified diagram of FIG. 13, in which the top of the female thread portion 4 on the front side of the nut member 3 is indicated by a dotted line in the figure. In addition, the end of the external thread 2 of the drainage device main body 1 and the end of the internal thread 4 of the nut member 3 do not collide. Therefore, the nut member 3 easily rises, and the state shown in FIG. 15, that is, the screwing start side end 2a of the male screw part 2 and the screwing start side end part 4a of the female screw part 4 are the same height. Can face each other.
By raising the nut member 3 in this way, the lower end portion of the nut member 3 other than the notch 5 can be positioned above the upper end of the discharge port 1c as shown in FIG. Can be rotated around the central axis of the screw. By directly rotating the nut member 3 about the central axis of the screw portion, the screwing of the male screw portion 2 and the female screw portion 4 can be started.
When the nut member 3 is rotated using the rib piece 3b or the like as it is, the drainage device main body 1 and the nut member 3 are screwed together, and the upper surface of the pressing portion 3a at the upper end of the nut member 3 is attached to the bottom surface of the sink S. It strongly abuts against the lower surface of the periphery of the hole H. As a result, the peripheral edge of the attachment hole H can be strongly held between the lower surface of the flange portion 1a and the upper surface of the pressing portion 3a, and the drainage device main body 1 is attached to the attachment hole H of the sink S as shown in FIG. Can do.
After this, from the discharge port 1c to the underfloor pipe, the trapping member T is connected in the middle, and the connecting pipe P using a straight pipe, a bent pipe or the like is used to adopt the drainage device mounting structure of the present invention. The construction of the drain pipe is completed.

  The drainage pipe of the sink N constructed as described above can be used as a drainage pipe having a trap function by using it in the same manner as the conventional example described in paragraph 0005.

In the drainage device main body 1 adopting the drainage device mounting structure of the first embodiment, by providing the nut member 3 with the notch portion 5, the drainage device main body 1 adopting the conventional drainage device mounting structure is provided. In comparison, the height width from the lower end of the male screw portion 2 to the discharge port 1c, that is, the protruding portion can be shortened, and the total height can be lowered accordingly.
More specifically, suppose that the height width from the lower end of the male screw portion 2 to the upper end of the discharge port which is the protruding portion (the length of L1 in FIG. 4) is a portion of the nut member cut from the discharge port. If the height width from the upper end of the female screw portion 3 to the lower end of the nut member 3 (L2 in FIG. 5) is exactly the same height width, the screw shaft should be Rotation to match cannot be done.
This is because the drainage device main body 1 and the nut member 3 having the same height L1 and L2 as described above are in contact with the lower end surface of the nut member 3 and the upper surface of the protruding portion as shown in FIG. Easy to understand if assumed. That is, in order to perform the longitudinal rotation in the direction opposite to the rotation when the screw shafts are matched from the state of FIG. 15 and pull out the nut member 3 from the protruding portion, the lower end surface of the nut member 3 and the upper surface of the protruding portion are in contact with each other. Although it is necessary to release the contact state, the contact between the drainage device main body 1 and the nut member 3 having the same height L1 and L2 is released unless the notch portion 5 is provided as in this embodiment. Therefore, it is impossible to rotate the nut member 3 in the vertical direction. Therefore, similarly, it is impossible to perform the rotation for matching the screw shafts by the reverse procedure.
When the notch portion 5 corresponding to the protruding portion is provided at the lower end portion of the nut member 3 as in the drainage device mounting structure of the first embodiment, the drainage device main body 1 having the same height width as L1 and L2 Even in the nut member 3, the notch portion 5 can secure a play space enough to enable rotation for matching the screw shaft, and perform rotation for matching the screw shaft. Thus, the nut member 3 can be screwed into the drainage device main body 1. As described above, in the drainage device mounting structure of the conventional example, the drainage device mounting structure of this embodiment has the same screw shaft even if the height width is impossible to rotate to match the screw shaft. Therefore, the height width of the drainage device main body 1 can be made narrower (lower) than in the conventional example.
Of course, even if the drainage device main body 1 and the nut member 3 have such a height that L2 is shorter than L1, the play portion becomes longer in the cutout portion 5, and therefore, rotation is performed to match the screw shaft. There is an effect that the work becomes easy.

Further, in the drainage device main body 1 adopting the drainage device mounting structure of the first embodiment, the central axis of the male screw portion 2 of the drainage device main body 1 and the central axis of the female screw portion 4 of the nut member 3 coincide with each other. In the state where the upper portion of the discharge port 1c is housed in the cutout portion 5, the screwing start side of the male screw portion 2 of the drainage device body 1 and the female screw portion 4 of the nut member 3 is viewed in the axial direction. Since the end portions are arranged in the vicinity and do not interfere with each other, compared to the drainage device main body 1 adopting the conventional drainage device mounting structure, the lower end of the male screw portion 2 to the discharge port 1c, that is, the protruding portion. The height width can be shortened, and the total height can be lowered accordingly.
More specifically, the male screw part 2 of the drainage device main body 1 and the female screw part 4 of the nut member 3 each have a spiral structure, and the end of the female screw part 4 is arranged below the end of the male screw part 2. When the ends are arranged at positions where they interfere with each other (positions where they collide in the axial direction), the ends of the female threads 4 are arranged at positions shifted from below the ends of the male threads 2. The height width required from the lower end of the male screw portion 2 to the upper end of the protruding portion is different from the case where the end portions are arranged at positions where they do not interfere with each other (position where they do not collide in the axial direction). Arise. As in the conventional example, the drainage device main body 1 and the nut member 3 in which the directions of the screwing start side end portion 2a of the male screw portion 2 and the screwing start side end portion 4a of the female screw portion 4 in the axial direction are not managed. Then, it is necessary to design the total height of each member in consideration that the end portions of the male screw portion 2 and the female screw portion 4 may be in a position where they interfere with each other. On the other hand, in this invention, the protrusion part of the drainage device main body 1 and the notch part 5 of the nut member 3 are utilized, and the screwing start side end part 2a and the female screw part 4 of the male screw part 2 in the axial direction view. The ends of the male screw portion 2 and the female screw portion 4 are close to each other in the axial direction and do not interfere with each other in a state where the direction of the screwing start side end portion 4a is managed and the rotation for matching the screw shaft is performed. It can be intentionally placed to be in position. For this reason, compared with the conventional drainage device main body 1 and the nut member 3, even if the total height of the nut member 3 and the number of screw turns of the female screw portion 4 are the same, the lower end portion of the male screw portion 2, that is, the male screw portion 2 The height width from the screwing start side end 2a to the upper surface of the protruding portion can be narrowed by one pitch of the threaded portion, and the height width of the drainage device main body 1 is narrowed (lower) accordingly. Can do.

Next, a second embodiment of the present invention will be described with reference to the drawings.
The drainage device and drainage pipe adopting the drainage device mounting structure of the second embodiment of the present invention shown in FIG. 17 to FIG. 27 are the sink N, drainage device body 1, nut member as the drainage device described below. 3, it is comprised from members, such as the trap member T, the collection member, the blindfold member, the connection piping P, and the bypass pipe 6. FIG. In addition, the upper and lower sides in the following description are demonstrated based on the upper and lower sides at the time of completion of construction in description of the following Example.
The sink N includes a sink S that is a box body that is open at the top, and a cabinet C on which the sink S is mounted. The bottom surface of the sink S is provided with a mounting hole H for attaching the drainage device main body 1.
The drainage device main body 1 is a bottomed cylindrical member as shown in FIG. 18 to FIG. 20, which is a protruding portion on the outer surface, and a pipe connection portion with a pipe body which is another drainage device. A certain discharge port 1c and a bypass pipe connection portion 7 which is a projecting portion and a pipe connection portion with a bypass pipe 6 which is another drainage device are provided on the outer side surface so as to be adjacent to each other.
In FIG. 18 and FIG. 20, the left pipe connection portion is the discharge port 1c, and the right pipe connection portion is the bypass pipe connection portion 7. As a mark structure, “L” is formed on the upper surface of the discharge port 1c. The letters “R” are printed on the upper surface of the bypass pipe connection portion 7.
Further, the drainage device main body 1 includes a flange portion 1a protruding outward at the periphery of the opening portion at the upper end forming the drainage port 1b into which the drainage in the sink S flows.
Further, the drainage device main body 1 is provided with a male screw portion 2 having a notch portion 5 below the flange portion 1a.
The cutout portion 5 provided in the male screw portion 2 will be described in detail. The above two threads below the male screw portion 2 have a width from the left end portion of the discharge port 1c to the right end portion of the bypass pipe connecting portion 7 described above. The male screw part 2 of the part up to is cut out to form a cutout part 5.
The cap member (not shown) is a member that closes the bypass pipe connecting portion 7 in a watertight manner from the inside of the drainage device main body 1 and is detachably attached to the bypass pipe connecting portion 7 through the drain port 1b.
The nut member 3 has a substantially cylindrical shape as shown in FIGS. 18, 19, and 21, and a pressing portion 3 a that comes into contact with the lower surface of the flange portion 1 a through the peripheral edge of the mounting hole H at the time of completion of construction. Prepare. Moreover, the internal thread part 4 screwed together with the external thread part 2 of the drainage device main body 1 is provided in the cylindrical inner surface.
In addition, a plurality of rib pieces 3b are provided on the outer surface of the cylindrical portion, which are gripped portions when the nut member 3 is rotated.
Further, as shown in FIG. 21, characters “L” and “R” are printed on the side surface of the nut member 3 and the upper surface of the pressing portion 3a as a mark structure. The central axis of the male threaded portion 2 of the drainage device main body 1 and the central axis of the female threaded portion 4 of the nut member 3 are matched, and the letters “L” and “R” of the drainage device main body 1 and the “ By aligning the letters of the discharge ports 1c of “L” and “R” in the same direction, the nut member 3 can be viewed in the axial direction of the screw portion, the male screw portion 2 of the drainage device main body 1, and the female screw of the nut member 3. Each screwing start side end portion of the portion 4 is arranged in the vicinity and at a position where it does not interfere with each other.
More specifically, the threading start side end 2a of the male threaded portion of the drainage device main body 1 is an end portion on the lower side of the male threaded portion 2 that first contacts the female threaded portion 4 of the nut member 3, simply “male”. Not only the “lower end of the screw portion 2”, but also the spiral end of the screw portion.
In the present embodiment, the male screw portion 2 is provided with a notch portion 5, and the male screw portion 2 is interrupted by the notch portion 5. “2a” indicates not the end of the interrupted portion but the end of the screw portion where the spiral starts (or ends) (however, depending on the position where the notch portion 5 is provided, A notch portion 5 is provided at an end portion where the spiral of the portion starts (or ends), and the end portion of the notch portion 5 may also serve as the “screwing start side end portion 2a of the male screw portion 2”.
Further, the screwing start side end portion 4 a of the female screw portion 4 of the nut member 3 is an upper end portion of the female screw portion 4 that first contacts the male screw portion 2 of the drainage device main body 1. This also indicates not only the “upper end of the female screw portion 4” but also the spiral end of the screw portion.
And, "the position where the respective screwing start side ends of the male screw part 2 of the drainage device main body 1 and the female screw part 4 of the nut member 3 are close to each other and do not interfere with each other" in FIG. As shown, the end portions of the male screw portion 2 and the female screw portion 4 on the screwing start side are close to each other in the axial direction (an angle of about 45 degrees about the central axis of the male screw portion 2 and the female screw portion 4). And the ends of both screw portions do not overlap each other.
Further, in the nut member 3, the height width from the lower end of the nut member 3 to the screwing start side end portion 4 a of the female screw portion 4 is set from the upper surface of the discharge port 1 c of the drainage device body 1 to the screw of the male screw portion 2. The height width is substantially the same as the height to the joint start side end portion 2a, and is slightly lower (about 1/4 or less the height of one pitch of the female screw portion 4).
The connection pipe P is a pipe member made of a pipe body such as a straight pipe or a bent pipe, and connects from the discharge port 1c on the side surface of the drainage device main body 1 to the underfloor pipe connected to the sewage side. The connection pipe P is disposed along the bottom surface of the sink S and the inner side surface of the cabinet C, and is provided at a midpoint via a trap member T described later.
The trap member T is a member obtained by bending a tubular body into a substantially S-shape, and forms a drainage accumulation portion in the inside thereof when in use. This drainage reservoir part fills a part of the flow path inside the trap member T, and odors and pests from the sewage side cannot enter the indoor side from the full part. Will be prevented from entering. Such a function of preventing odors and pests from the sewage side from entering the indoor side is called a “trap function”.
Further, the trap member T is provided with a bypass pipe connection portion 7 which is a connection portion with a bypass pipe 6 which will be described later, above a vertical portion of the pipe body on the downstream side of the trap member T.
The bypass pipe 6 is a tubular body made of a bent pipe, and one end is connected to the bypass pipe connecting portion 7 of the drainage device main body 1 and the other end is connected to the bypass pipe connecting portion 7 of the trap member T.
Although not described in detail, the drainage device main body 1, the sink S, each piping member, etc., where the watertight connection is required at each connection portion of the piping, bonding, packing and cap nuts, etc. are used. And a watertight connection is made.

The drainage device and drainage pipe configured as described above are applied to the sink S of the sink N which is a tank body as follows.
First, the drainage device main body 1 is inserted into the mounting hole H on the bottom surface of the sink S from above, so that the lower surface of the flange portion 1a is in contact with the peripheral upper surface of the mounting hole H on the bottom surface of the sink S. Next, as shown in FIGS. 22 and 23, the nut member 3 is inserted from the discharge port 1c, and the nut member 3 is rotated to match the screw shaft.
At this time, the direction of the nut member 3 is adjusted so that the letters “L” and “R” of the drainage device main body 1 and the letters “L” and “R” of the nut member 3 are seen from the central axis of the screw portion. , And arranged so as to be in the same direction when viewed from the central axis of the screw portion.
The rotation operation for making the screw shafts coincide with each other is performed by providing a cutout portion 5 in the male screw portion 2, so that the nut member 3 and the male screw portion 2 of the drainage device main body 1 that interferes with the nut member 3. A relatively wide play space can be provided between them, which can be easily performed.
Further, the letters “L” and “R” of the drainage device main body 1 and the letters “L” and “R” of the nut member 3 are arranged in the same direction, and the nut member 3 is positioned with respect to the drainage device main body 1. Thus, when viewed in the axial direction, the respective threading start side end portions of the male screw portion 2 of the drainage device main body 1 and the female screw portion 4 of the nut member 3 are arranged in the vicinity and at positions where they do not interfere with each other.
Further, the height width from the lower end of the nut member 3 to the screwing start side end 4a of the female screw part 4 is extended from the upper surface of the discharge port 1c of the drainage device main body 1 to the screwing start side end 2a of the male screw part 2. Therefore, when the center axis of the male screw portion 2 and the female screw portion 4 coincide with each other, the rotation of the nut member 3 is performed. As shown in FIG. 24, the male threaded portion 2 and the female threaded portion 4 are at the same height position as shown in FIG. 24, and the nut member 3 is simply rotated around the central axis of the screw. (In this case, the letters “L” and “R” of the drainage device main body 1 and the letters “L” and “R” of the nut member 3 are arranged in the same direction. If not, the center of the male screw portion 2 and the female screw portion 4 will be obtained even if the rotation operation for matching the screw shaft of the nut member 3 is performed. There can not proceed rotated to match the position can not be naturally performed screwing of the male screw part 2 and the female threaded portion 4).
In this way, the screwing start side end 2a of the male screw part 2 and the screwing start side end part 4a of the female screw part 4 are at the same height position, and the nut member 3 is directly centered on the center axis of the screw. By rotating, the screwing of the male screw part 2 and the female screw part 4 can be started.
When the nut member 3 is rotated using the rib piece 3b or the like as it is, the drainage device main body 1 and the nut member 3 are screwed together, and the upper surface of the pressing portion 3a at the upper end of the nut member 3 is attached to the bottom surface of the sink S. It strongly abuts against the lower surface of the periphery of the hole H. As a result, as shown in FIG. 27, the periphery of the attachment hole H can be strongly held between the lower surface of the flange portion 1 a and the upper surface of the pressing portion 3 a, and the drainage device main body 1 is attached to the attachment hole H of the sink S. Can do.
Thereafter, the discharge port 1c to the underfloor pipe are connected via a connecting pipe P using a straight pipe, a bent pipe or the like via a trap member T in the middle. Further, one end of the bypass pipe 6 is connected to the bypass pipe connecting portion 7 of the drainage device main body 1, the other end is connected to the bypass pipe connecting portion 7 of the trap member T, and a cap member is further connected from the inside of the drainage device main body 1. The construction of the drainage pipe, which is watertightly attached to the bypass pipe connecting portion 7 and adopts the drainage apparatus mounting structure of the present invention, is completed.

The drainage pipe of the sink N constructed as described above can be used as a drainage pipe having a trap function by using it in the same manner as the conventional example described in paragraph 0005.
In addition, as a configuration / function not found in the conventional example and the first embodiment, the second embodiment has a piping cleaning structure. More specifically, when dust or the like gathers in the pipe downstream from the trap member T and the pipe is clogged, the cap member is removed from the drain port 1b, and from the bypass pipe connecting portion 7 in the drain port 1b, A clogging can be eliminated by inserting a metal coil wire or a cleaning device such as a high-pressure washing machine through the bypass pipe 6 to the downstream side of the trap member T. After cleaning, the cleaning tool is taken out from the bypass pipe connection portion 7, and the cap member is attached to the bypass pipe connection portion 7 again to complete the operation.

  In the drainage device main body 1 adopting the drainage device mounting structure of the second embodiment, the drainage device main body 1 adopting the conventional drainage device mounting structure is provided by providing the male screw part 2 with the notch 5. As compared with the above, the height width from the lower end of the male screw portion 2 to the discharge port 1c, that is, the protruding portion can be shortened, and the overall height can be lowered accordingly. The reason why the overall height can be lowered is that the place where the play space is generated is between the notch portion 5 and the discharge port 1c of the nut member 3 of the first embodiment, and on the male screw portion 2 in the second embodiment. Except for the point between the notch 5 and the nut member 3, the reason and effect of the first embodiment described in paragraph 0021 are the same.

Further, in the drainage device main body 1 adopting the drainage device mounting structure of the second embodiment, the central axis of the male screw portion 2 of the drainage device main body 1 and the central axis of the female screw portion 4 of the nut member 3 coincide with each other. In the state where the upper portion of the discharge port 1c is housed in the cutout portion 5, the screwing start side of the male screw portion 2 of the drainage device body 1 and the female screw portion 4 of the nut member 3 is viewed in the axial direction. Since the end portions are arranged in the vicinity and do not interfere with each other, compared to the drainage device main body 1 adopting the conventional drainage device mounting structure, the lower end of the male screw portion 2 to the discharge port 1c, that is, the protruding portion. The height width can be shortened, and the total height can be lowered accordingly.
The reason / effect for reducing the overall height is the same as the reason / effect of the first embodiment described in paragraph 0022.

The embodiments of the present invention are as described above. However, the present invention is not limited to the above-described embodiments, and can be freely changed without departing from the scope of the present invention.
For example, in the above-described embodiment, the drainage device main body 1 of the present invention is configured to be adopted as the sink S of the sink N, but the present invention is not limited to the above-described embodiment, and includes a washstand, a bathtub, You may employ | adopt for the attachment structure of the drainage apparatus of various drainage apparatuses, such as a bathroom and the waterproof pan for washing machines.

  Moreover, in the said Example, although the external thread part 2 or the internal thread part 4 is comprised by the single thread | screw which a screw | thread consists of a single thread | thread, this invention is not limited to the said Example, 2 Any structure that uses screwing, such as a double thread that is a rotationally symmetric body, or a triple thread that is a rotationally symmetric body, can be used regardless of the number of threads.

  In the first embodiment, the cutout portion 5 provided in the female screw portion 4 of the nut member 3 is configured not to interfere with the female screw portion 4, but sufficient strength is ensured. If the cutout 5 can function as the female screw portion 4 without any trouble, the cutout portion 5 may be arranged so as to delete a part of the female screw portion 4.

  Moreover, in the said Example, although all the protrusion parts were the connection parts with other drainage apparatuses, such as a pipe body, this invention is not limited to the said Example, and it is piping connection, such as a fixing rib. May be a protrusion configured for another purpose. Moreover, even if it is a piping connection part, it may be a structure different from the connection part with the discharge port 1c or the bypass pipe 6, for example, the connection part of piping from an overflow drainage port.

DESCRIPTION OF SYMBOLS 1 Drainage device main body 1a Flange part 1b Drainage port 1c Drainage port 2 Male screw part 2a End part of screw start side of male screw part 3 Nut member 3a Pushing part 3b Rib piece 4 Female screw part 4a Start of screwing of female screw part Side end 4b End of threaded end of female screw 5 End 5 Notch 6 Bypass pipe 7 Bypass pipe connection C Cabinet H Mounting hole N Sink P Connection pipe S Sink

Claims (8)

A cylindrical portion of a bottomed cylindrical shape,
A flange portion provided on the outer surface of the cylindrical body portion so as to protrude along the peripheral edge;
A male thread part provided on the outer surface on the bottom side of the flange part of the cylindrical part,
A protruding portion provided so as to protrude in the outer surface direction on the bottom surface side of the male screw portion of the cylindrical body portion,
A drainage device body comprising:
A nut member having a substantially cylindrical shape and a female screw part screwed into the male screw part of the drainage device main body on the inner surface;
A drainage device mounting structure characterized in that a cutout portion corresponding to a projection portion of a drainage device main body is provided at an end portion of the nut member arranged on the projection portion side. In the drainage device connection structure, the nut member is inserted into the drainage device body,
When the notch part of the nut member is arranged on the protruding part of the drainage device body in the axial direction,
The male screw part of the drainage device main body and each screwing start side end part of the female screw part of the nut member are arranged at positions near the axial direction view and not interfering with each other. The installation structure of the drainage device. A cylindrical portion having a bottomed substantially cylindrical shape,
A flange portion provided on the outer surface of the cylindrical body portion so as to protrude along the peripheral edge;
A male thread part provided on the outer surface on the bottom side of the flange part of the cylindrical part,
A protruding portion provided so as to protrude in the outer surface direction on the bottom surface side of the male screw portion of the cylindrical body portion,
A drainage device body comprising:
A nut member having a substantially cylindrical shape and a female screw portion screwed onto the male screw portion of the drainage device main body on the inner surface;
The drainage device main body and the nut member respectively provided with a mark structure for the drainage device main body and the nut member,
By the mark structure, each screwing start side end portion of the male screw portion of the drainage device main body and the female screw portion of the nut member can be disposed in the vicinity of the axial direction view and not interfering with each other. Mounting structure. In the drainage device connection structure,
4. The drainage device mounting structure according to claim 3, wherein the mark structure of the drainage device main body is also used in the protruding portion of the drainage device main body. In the drainage device connection structure,
The mark structure of the nut member is a notch corresponding to the protruding portion of the drainage device main body provided at an end portion of the nut member arranged on the protruding portion side. 4. A structure for mounting the drainage device according to 4.   The screwing end side end portion of the female screw portion is located at the same position as the notch portion of the nut member and in the central axis direction of the nut member. The installation structure of the drainage device. A cylindrical portion of a bottomed cylindrical shape,
A flange portion provided on the outer surface of the cylindrical body portion so as to protrude along the peripheral edge;
A male thread part provided on the outer surface on the bottom side of the flange part of the cylindrical part,
A protruding portion provided so as to protrude in the outer surface direction on the bottom surface side of the male screw portion of the cylindrical body portion,
A drainage device body comprising:
A nut member having a substantially cylindrical shape and a female screw part screwed into the male screw part of the drainage device main body on the inner surface;
A drainage device mounting structure, characterized in that a notch portion corresponding to a nut member is provided on the protruding portion side of the male screw portion of the drainage device main body. In the drainage device connection structure,
8. The drainage device mounting structure according to any one of claims 1 to 7, wherein the protruding portion of the drainage device main body is a pipe connection portion with another drainage device.

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