JP6142340B2 - Drain pipe mounting method, drain pipe mounting tool and drilling tool for washing unit for flush toilet - Google Patents

Description

  The present invention relates to a drain pipe mounting method for a flush toilet flushing unit, a drain pipe mounting tool used in the drain pipe mounting method, and a drilling tool used in the drain pipe mounting method.

A flush valve device that can be manually operated to allow water to flow when necessary for water-saving purposes is attached to the flush toilet flush unit used in flush toilets (hereinafter sometimes referred to simply as the wash unit). There is something that was done.
This washing valve device is formed so as to automatically close after flowing a certain amount of water, and includes, for example, a push button type and a handle type.

Incidentally, an electronically controlled cleaning unit that automatically operates when a human body is sensed is attached to an existing manually operated cleaning unit.
An electronically controlled cleaning unit of the type attached to an existing cleaning unit senses the use of a toilet by a sensor and operates to flow water for a predetermined time.
Such electronically controlled cleaning units attached to existing cleaning units are disclosed in Patent Document 1 and Patent Document 2.

Hereinafter, attachment of a conventionally known cleaning unit will be described with reference to FIG. Note that FIG. 10 shows only the internal configuration of the electronically controlled cleaning unit, and a cover that covers these internal configurations is actually attached.
The electronically controlled cleaning unit is mounted on an existing cleaning unit, and includes a sensor (not shown) that detects a human body and a solenoid 11 that operates according to the reaction of the sensor.
The existing cleaning unit is provided with a casing unit 12 to which a water supply pipe 15 for flowing water from a water pipe is connected. A drainage pipe 13 that flows water out to the toilet bowl is connected to the bottom of the casing 12.

  The piston portion 14 used in the electronically controlled cleaning unit is mounted on the casing 12 of the existing cleaning unit. The piston part 14 has a pin 16 extending in the direction of the drain pipe 13. An upper space and a lower space are formed in the piston portion 14, and an upper end portion of the pin 16 closes a communicating portion between the upper space and the lower space in the piston portion 14. The existing casing 12 is also provided with a push button 17, and by pressing the push button 17, it is possible to incline the pin 16 and flow water.

  A drain pipe 42 is attached between the electronically controlled cleaning unit and the existing drain pipe 13. The upper end portion of the drain pipe 42 communicates with the upper space of the piston portion 14 and can be opened and closed by an electromagnetic valve that can be opened and closed by the solenoid 11.

The cleaning operation is performed when the sensor detects a person and operates the solenoid 11.
When the solenoid 11 opens the solenoid valve of the drain pipe 42 and causes the water in the upper space to flow out to the drain pipe 13 via the drain pipe 42, the pressure in the upper space becomes lower than the pressure in the lower space. . Then, the whole piston part 14 rises in the upper space direction on the low pressure side, and the water supply pipe 15 and the drain pipe 13 closed at the lower surface of the piston part 14 communicate with each other. In this way, water from the water supply pipe 15 flows into the drain pipe 13.

JP-A-8-326117 Japanese Patent Laid-Open No. 10-54064

When an existing manually operated cleaning unit is attached to an electronically controlled cleaning unit, the upper part of the existing cleaning unit is removed, and an electronically controlled cleaning unit having a plunger or the like disposed therein is attached. At this time, the drain pipe also needs to be attached to the existing drain pipe.
However, in order to attach a drain pipe to an existing drain pipe, either replace the existing drain pipe with a drain pipe constructed so that a drain pipe can be installed, or ensure that the drain pipe does not leak. Construction such as drilling a mounting hole with a thread groove so that it can be installed is necessary.

When replacing an existing drainage pipe, it is necessary to manufacture a drainage pipe to which a drain pipe can be attached in advance, so that there is a problem that the cost is high and replacement is troublesome.
Even when a mounting hole that does not leak water is drilled, there is a problem that work is troublesome because a dedicated tool or the like is required.
Especially when the existing cleaning unit to be replaced is installed near the wall of the toilet, the replacement work is difficult, and the installation work of the mounting hole so that there is no water leakage is required. It is also difficult to do.

  Therefore, the present invention has been made to solve the above-mentioned problems, and the object of the present invention is to provide a method for easily attaching a drain pipe to an existing drain pipe, a fixture used for the method, and a drilling tool used for the method. It is to provide.

According to the drain pipe mounting method of the present invention, when the electronically controlled flush toilet cleaning unit is mounted on the existing manual flush toilet cleaning unit, the drain from the electronically controlled flush toilet cleaning unit A drain pipe for draining water between an electronically controlled flush toilet cleaning unit and an existing drain pipe, and one end of the drain pipe can be attached and communicated with the drain pipe And a fixture having a fixing portion for fixing to a predetermined position in an existing drainage pipe, the fixture is attached to a predetermined position of the existing drainage pipe, and the cylindrical portion of the attached fixture is used. Insert a drilling tool to make a hole in the existing drainage pipe, drill a hole in the existing drainage pipe, remove the drilling tool from the fixture, and drain the pipe to the electronically controlled flush toilet cleaning unit. The drain pipe is attached between the electronically controlled flush toilet cleaning unit and the existing drain pipe by connecting the other end of the fitting and attaching the drain pipe to the cylindrical portion of the fixture. .
By adopting this method, the drain pipe can be easily attached without replacing the drain pipe itself. In addition, since it is possible to make a hole in the drain pipe simply by inserting a drilling tool, no special construction is required, and it is easy to drill a hole in any orientation with respect to the drain pipe. Therefore, even if the existing cleaning unit is near the toilet wall, the drain pipe can be easily attached.

In addition, a thread groove is formed in the inner peripheral wall of the cylindrical portion of the fixture, the tip portion of the drilling tool is formed sharply, and the outer peripheral wall of the drilling tool is the inner peripheral wall of the cylindrical portion. A screw groove that is screwed into the screw groove is formed, and when a hole is formed in the drain pipe, the drilling tool may be screwed into the cylindrical portion of the fixture.
According to this method, since the drilling tool can be rotated by the thread groove and the hole can be drilled in the drain pipe, the hole can be easily drilled even when the drain pipe is close to the wall surface. Moreover, since holes can be drilled without using electricity, construction can be easily performed even in places where there are no outlets nearby.

In addition, the rear end of the drilling tool is formed in a shape that can be fitted with a tightening means for rotating the drilling tool, and when the drilling tool is screwed into the cylindrical portion of the fixture, the operator The tightening means may be attached to the drilling tool and the drilling tool may be screwed in.
According to this method, a hole can be easily formed with less force than when the drilling tool is directly turned by hand.

Further, a flange formed with a larger diameter than the other part is formed at the tip of one end of the drain pipe, and when the drain pipe is attached to the cylindrical portion, the flange of the drain pipe is A cap nut that is brought into contact with the tip of the cylindrical portion and can be screwed into a thread groove formed on the outer peripheral wall of the cylindrical portion, has an insertion hole into which a drain pipe can be inserted, and can hold a flange. The flange may be attached to the cylindrical portion.
According to this method, the drain pipe can be attached to the fixture without inserting one end of the drain pipe into the cylindrical portion.

According to the drain pipe fitting according to the present invention, when the electronically controlled flush toilet cleaning unit is attached to the existing manual flush toilet cleaning unit, the drain from the electronically controlled flush toilet cleaning unit is provided. Is a fitting used to attach a drain pipe for draining water between an electronically controlled flush toilet cleaning unit and an existing drain pipe, and can be fitted with one end of the drain pipe. And a fixing portion for fixing at a predetermined position in the existing drainage pipe.
By adopting this configuration, the drain pipe can be easily attached to the drain pipe. That is, the drain pipe can be easily attached to the drain pipe because the existing drain pipe only needs to have a simple hole of any shape.

Further, a thread groove may be formed on the inner peripheral wall of the cylindrical portion.
According to this configuration, by using a drilling tool in which a screw groove that is screwed into a screw groove of the inner peripheral wall of the cylindrical part is formed on the outer peripheral wall, the drilling tool is screwed into the cylindrical part of the fixture. A hole can be made in the drain pipe.

Further, a screw groove may be formed in the outer peripheral wall of the cylindrical portion.
According to this configuration, when one end of the drain pipe is attached to the cylindrical portion, the drain pipe can be attached using a nut or the like that is screwed to the outer peripheral wall.

Furthermore, the fixing portion surrounds the peripheral half of the drainage pipe at a position facing the first member with the drainage pipe sandwiched between the first member that is mounted so as to surround the peripheral half of the drainage pipe. It is good also as having the 2nd member with which it mounts | wears like this.
According to this, the drain pipe can be easily attached by fixing the first member and the second member.

According to the drilling tool of the present invention, when the electronically controlled flush toilet bowl cleaning unit is attached to the existing manual flush toilet bowl cleaning unit, the drain from the electronically controlled flush toilet bowl washing unit is drained. Is a drilling tool used to attach a drain pipe between the electronically controlled flush toilet cleaning unit and the existing drain pipe, and can be fitted with one end of the drain pipe, A fitting having a cylindrical portion that communicates with a fixing portion for fixing to a predetermined position in an existing drainage pipe can be inserted into the cylindrical portion in order to make a hole in the drainage pipe after being attached to the drainage pipe. It has a large diameter and is characterized in that the tip is sharply formed.
According to this configuration, it is possible to make a hole at a predetermined position of the drain pipe simply by inserting the drain pipe from the insertion hole of the fixture.

Further, a screw groove may be formed on the outer peripheral wall.
According to this configuration, it is possible to make a hole in the drain pipe by using the fixture having a thread groove formed on the inner peripheral wall of the cylindrical portion and screwing the drilling tool into the cylindrical portion of the fixture.

  According to the present invention, a drain pipe can be easily attached to an existing drain pipe at low cost.

It is a front view of the washing unit for existing flush toilets. It is a side view which shows the place which attached the washing | cleaning unit for electronically controlled flush toilets. It is a side view of a drain pipe. It is a front view of a drain pipe. It is explanatory drawing of the cross section of a fixture, and a drilling tool. It is explanatory drawing which shows the place which inserted the drilling tool in the cylindrical part of the fixture. It is explanatory drawing which shows the fixing means of a drain pipe. It is explanatory drawing which shows the place which attached the drain pipe to the fixture. It is a side view which shows other embodiment which attached the washing | cleaning unit for electronically controlled flush toilets. It is an assembly exploded view of the washing unit for electronically controlled flush toilets.

FIG. 1 is a front view of a toilet before attaching an electronically controlled flush toilet cleaning unit (hereinafter sometimes referred to simply as a “washing unit”), and FIG. 2 is a case where an electronically controlled washing unit is attached. A side view of the toilet is shown.
Here, although the place which attached the electronically controlled washing | cleaning unit 40 to the Japanese-style toilet bowl 20 is shown, as this invention, it is not limited to the toilet bowl use. The electronically controlled cleaning unit 40 may be attached to a male urinal (not shown). Furthermore, the case where it attaches to the filth cleaner (not shown) provided in the hospital etc. may be sufficient.
Therefore, the flush toilet flushing unit is not limited to a toilet bowl.

As shown in FIG. 1, the existing water supply pipe 22 extends in the vertical direction on the side of the front side of the toilet 20. The water supply pipe 22 is connected to a water supply pipe 24 extending in the lateral direction at the upper end. A water supply pipe 24 extending in the lateral direction is connected to a side surface of an existing manual cleaning unit 25.
The existing manual washing unit 25 is disposed on the drain pipe 27 connected to the toilet 20, and has a manual lever 26 extending in the lateral direction. The drain pipe 27 referred to here is a pipe through which water discharged from the cleaning unit 25 to the toilet bowl 20 (clean cleaning water supplied from the water supply) flows, and sewage flowing out of the toilet bowl 20 circulates. It is different from a tube.
Unlike the water supply pipe, the drain pipe 27 is not subjected to water pressure, so a thin pipe (thickness is about 0.5 mm, for example) can be used. As the material of the drain pipe 27, brass or copper can be employed. Thus, by using a thin wall as the drain pipe 27 and adopting a material with good workability such as brass or copper as the material, it is easy to use a drilling tool 75 (described later) as in the present invention. A hole can be drilled.

  As shown in FIG. 2, when an electronically controlled cleaning unit 40 is mounted on the existing cleaning unit 25, it is necessary to attach a drain pipe 42 between the electronically controlled cleaning unit 40 and the existing drain pipe 27. There is.

  3 and 4 show a drain pipe 42 to be attached. The drain pipe 42 of the present embodiment is integrally formed with a main body portion 43 extending in the vertical direction and mounting portions 45 and 46 extending in a direction orthogonal to both end portions of the main body portion. That is, the drain pipe 42 has a U-shape in which the length of the main body portion 43 is longer than the attachment portions 45 and 46.

Of the attachment portions of the drain pipe 42 of the present embodiment, one is formed with a flange 47 and the other is not formed with a flange and has a straight shape.
In this embodiment, the brim 47 is formed on the side attached to the existing drain pipe 27 side, but the brim may be formed on the cleaning unit 40 side, or no brim is formed on either side. Good.

When the attachment portion 46 on one side of the drain pipe 42 is attached to the existing drain pipe 27, first, an attachment position where the drain pipe 42 does not come into contact with an obstacle is examined. The obstacle here refers to an obstacle that cannot be moved to another place such as a wall or a manual lever of a toilet.
When the examination of the attachment position is completed and the attachment position is determined, the attachment tool 50 is attached to the drain pipe 27 at the position where the attachment portion 46 on one side of the drain pipe 42 is attached.

FIG. 5 shows a fixture and a drilling tool.
The fixture 50 includes a cylindrical portion 52 to which the attachment portion 46 of the drain pipe 42 to be attached is attached, and a fixing portion 54 for fixing the drain pipe 27 at a predetermined position. The fixing portion 54 is separated into a first member 55a and a second member 55b each having a semicircular arc shape.

  The respective end portions of the first member 55a and the second member 55b are formed so as to protrude outward from the arc as connection portions 56 for connection to each other. Each connecting portion 56 is formed with a screw hole 57 into which a screw can be screwed, and the first member 55a and the second member 55b are fixed by the screw 58. However, the fixing of the first member 55a and the second member 55b is not limited to fixing with the screw 58, and bolts and nuts may be used, or other methods may be used.

The cylindrical portion 52 is formed so as to protrude outward from substantially the center in the width direction in either the first member 55a or the second member 55b.
The cylindrical portion 52 in the present embodiment has a thread groove 67 formed on the inner wall surface and a thread groove 62 formed on the outer wall surface, and the inside is a hole 78 in the drain pipe 42 and the drain pipe 27. A communication hole 61 communicating with (described later) is formed.
In the present embodiment, since the attachment portion 46 of the drain pipe 42 is not inserted into the cylindrical portion 52, the communication hole 61 may have any diameter, but the drilling tool 75 can be inserted. The diameter is such that the drain can be circulated smoothly.
Further, a packing 68 is provided on the inner side of the rising portion of the communication hole 61 of the cylindrical portion 52 (a portion that contacts the outer wall surface of the drain pipe 27). The packing 68 is arranged around a hole 78 formed in the drain pipe 27 when the fixture 50 is attached to the drain pipe 27. Thereby, water leakage from the hole 78 formed in the drain pipe 27 can be prevented.

The cylindrical portion 52 has an inner wall thread groove 67 formed near the drain pipe 27 and an outer wall thread groove 62 formed near the drain pipe 42.
That is, the thread groove 67 on the inner wall surface of the cylindrical portion 52 is a thread groove that can be screwed with the thread groove 77 formed on the outer wall surface of the drilling tool 75, and allows the drilling tool 75 to enter while rotating. I have to.

The thread groove 62 on the outer wall surface of the cylindrical portion 52 is a thread groove into which the fixing means 72 can be screwed. As the fixing means 72, a nut or the like can be employed.
Specific fixing means will be described later.

The drilling tool 75 is a rod-shaped member having a diameter that can be inserted into the communication hole 61 of the fixture 50. The tip 75a of the drilling tool 75 is formed to be sharp. Further, a hexagonal diameter hole into which a hexagon wrench 76 (a tightening means in the claims) can be fitted is formed in the rear end portion 75 b of the drilling tool 75. The tool 75 can be turned around to enter the communication hole 61.
The tightening means is not limited to the hexagon wrench 76 but may be a spectacle wrench or the like.
Moreover, the shape which does not use a loosening means may be sufficient, and it may only be formed in the large diameter so that it can strike with tools, such as a hammer.

An attachment process is shown in FIGS.
The operator inserts the drilling tool 75 through the communication hole 61 of the fixture 50 attached to the existing drain pipe 27 and turns the drilling tool 75 with the hexagon wrench 76. As a result, the tip end portion 75 a of the drilling tool 75 is pierced into the drain pipe 27 and a hole 78 is drilled.
The drain hole 78 drilled in the drain pipe 27 is concealed by the fixture 50, and the drilled hole merely allows the drain to flow, so it is particularly necessary to process the periphery of the hole. It is sufficient to leave the drilled.

Thus, after making a hole in the drain pipe 27, the flange 47 of the drain pipe 42 is brought into contact with the cylindrical portion 52 and fixed with a cap nut 72 which is an example of a fixing means. The cap nut 72 is formed with a screw groove on the inner side so as to be screwed into the screw groove 62 on the outer wall surface of the cylindrical portion 52. In addition, the cap nut 72 used here is formed with a through hole 80 penetrating the drain pipe 42 at the center, and a holding portion 82 that can hold the flange 47 is formed.
Since the drain pipe 42 of this embodiment is not formed with a brim on the other end side, the cap nut 72 is inserted from the other end side.

  Note that a ring-shaped packing 84 may be provided at the tip of the cylindrical portion 52. Then, the flange 47 of the drain pipe 42 comes into contact with the packing 84, and the flange 47 and the packing 84 are tightened by the pressing portion 82 of the cap nut 72. For this reason, the drain pipe 42 can be attached to the fixture 50 so as not to leak water.

  As described above, the flange 47 is provided on the attachment portion 46 of the drain pipe 42 and is not inserted into the tubular portion 52 of the fixture 50, but is brought into contact with the distal end portion of the tubular portion 52. The drain pipe 42 is smoothly attached to the cylindrical portion 52. More specifically, for example, when the attachment portion 46 on one end side of the drain pipe 42 is inserted into the cylindrical portion 52 and attached, the attachment portion 45 on the other end side of the drain pipe 42 is first attached to the cleaning unit 40. In this case, the drain pipe 42 must be inserted into the cylindrical portion 52 by moving the angle in the axial direction of the mounting portion 45 (in the direction of arrow X in FIG. 8). However, as described above, the attachment portion 46 of the drain pipe 42 is brought into contact with the distal end portion of the cylindrical portion 52 and attached to the cylindrical portion 52, whereby the drain pipe 42 is moved at an angle in the axial direction of the attachment portion 45. Even if it is not, positioning can be performed only by rotating the drain pipe 42 mounted first about the axis of the mounting portion 45. For this reason, the drain pipe 42 can be easily mounted.

  Note that the drilling tool 75 is not limited to being inserted by turning, and the hole 78 may be drilled by hitting the rear end portion 75b of the drilling tool 75 with a tool such as a hammer.

In the embodiment described above, an example in which a toilet bowl is disposed below the cleaning unit has been described.
However, as shown in FIG. 9, the attachment method, attachment tool, and drilling tool of the present invention can be employed even when the drain pipe enters the wall surface. In the case as shown in FIG. 9, since the gap between the drain pipe and the wall surface is in a narrow state, it is difficult to replace or drill the drain pipe itself as in the prior art. Even so, the drain pipe can be easily attached.

20 Toilet bowl 22 Water supply pipe 24 Water supply pipe 25 Existing flush toilet bowl washing unit 26 Manual lever 27 Drain pipe 40 Electronically controlled flush toilet bowl washing unit 42 Drain pipe 43 Main body 45, 46 Mounting section 47 Head 50 Mounting tool 52 Cylindrical part 54 Fixed part 55a First member 55b Second member 56 Connection part 57 Screw hole 61 Communication hole 62 Screw groove 67 Screw groove 68 Packing 72 Fixing means (cap nut)
75 Drilling tool 75a Front end 75b Rear end 76 Tightening means (hexagon wrench)
77 Thread groove 78 Hole 80 Through hole 82 Holding part 84 Packing

Claims (10)

When installing an electronically controlled flush toilet flushing unit to an existing manual flush toilet flushing unit, an electronically controlled drainpipe for draining drainage from the flush toilet flushing unit A mounting method for mounting between a washing unit for a flush toilet and an existing drain pipe,
Using a fixture having a cylindrical part that can be attached to one end of the drain pipe and communicated with the drain pipe, and a fixing part for fixing the drain pipe to a predetermined position in the existing drain pipe,
Attach the fixture to a predetermined position of an existing drain pipe,
Insert a drilling tool to make a hole in the existing drainage pipe from the cylindrical part of the attached fixture, and make a hole in the existing drainage pipe,
Remove the drilling tool from the fixture,
Connect the other end of the drain pipe to the electronically controlled flush toilet cleaning unit,
A drain pipe mounting method comprising: mounting a drain pipe between an electronically controlled flush toilet cleaning unit and an existing drain pipe by attaching one end of the drain pipe to the tubular portion of the fixture. . A thread groove is formed on the inner peripheral wall of the cylindrical portion of the fixture,
The tip of the drilling tool is sharply formed,
On the outer peripheral wall of the drilling tool, a thread groove that is screwed into the thread groove of the inner peripheral wall of the cylindrical portion is formed,
2. The drain pipe mounting method according to claim 1, wherein, when making a hole in the drain pipe, a drilling tool is screwed into the cylindrical portion of the mounting tool. The rear end of the drilling tool is formed in a shape capable of mounting a loosening means for rotating the drilling tool,
3. The drain pipe mounting method according to claim 2, wherein when the drilling tool is screwed into the cylindrical portion of the fixture, the operator attaches the loosening means to the drilling tool and screws the drilling tool. . At the tip of one end of the drain pipe, a brim formed with a larger diameter than the other part is formed,
When attaching the drain pipe to the cylindrical portion, the flange of the drain pipe is brought into contact with the tip of the cylindrical portion,
Attach the flange to the cylindrical portion with a cap nut that can be screwed into the thread groove formed on the outer peripheral wall of the cylindrical portion, has an insertion hole into which the drain pipe can be inserted, and can hold the flange. The drain pipe attachment method according to any one of claims 1 to 3, wherein the drain pipe is attached to the drain pipe. When installing an electronically controlled flush toilet flushing unit to an existing manual flush toilet flushing unit, an electronically controlled drainpipe for draining drainage from the flush toilet flushing unit A fitting used for mounting between a flush toilet flush unit and an existing drain pipe,
A fixture having a cylindrical portion that can be attached to one end of a drain pipe and communicated with the drain pipe, and a fixing portion for fixing the drain pipe at a predetermined position in an existing drain pipe.   6. The fixture according to claim 5, wherein a thread groove is formed on an inner peripheral wall of the cylindrical portion.   The fitting according to claim 5 or 6, wherein a screw groove is formed in an outer peripheral wall of the cylindrical portion.   The fixing portion surrounds the half circumference of the drainage pipe at a position facing the first member with the drainage pipe sandwiched between the first member that is attached so as to surround the circumference of the drainage pipe. It has a 2nd member with which it mounts | wears, The fixture of any one of Claims 5-7 characterized by the above-mentioned. When installing an electronically controlled flush toilet flushing unit to an existing manual flush toilet flushing unit, an electronically controlled drainpipe for draining drainage from the flush toilet flushing unit It is a drilling tool used when installing between a washing unit for a flush toilet and an existing drain pipe,
A drain pipe after a fitting having a cylindrical portion that can be attached to one end of the drain pipe and communicated with the drain pipe and a fixing portion for fixing the drain pipe at a predetermined position in the existing drain pipe is attached to the drain pipe. A drilling tool characterized by having a diameter that can be inserted into the cylindrical portion so as to make a hole in the tube, and having a sharp tip. The drilling tool according to claim 9, wherein a thread groove is formed in the outer peripheral wall .

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