JP2004316422A - Drain repair method, drain repair system and drain repair components - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To solve problems, in renovating a bathroom drain or the like, that when an outer area of a waterproof pan of a drain trap is cut off for a repair, a bore diameter to be cut off becomes larger and it has to be taken out by a large drilling machine or a chipping work, water-resistant layer has to be mended since the water-resistant layer is cut off, more working processes in general are required for cutting off an outer surface of a drain fitting, therefore working hours become longer and furthermore, as cement is used, a curing time is required to be watched in proceeding the work. <P>SOLUTION: A bottom part of the existing drain trap fitting is drilled to make a hole, into which a penetrating pipe is passed through and then a filling material is injected into the space made between the drilled hole and the penetrating pipe. <P>COPYRIGHT: (C)2005,JPO&NCIPI

Description

  The present invention relates to repair of bathroom drainage and other drainage equipment in an existing building, and to repair of drainage provided with a floor-open type bowl-shaped waterproof drainage trap hardware.

In repairing bathroom drains, it has been customary to remove the drain trap including the waterproof tray and attach a new drain trap of the same shape, as shown in the series of operations from FIG. 7 to FIG.
JP-A-2004-031414

However, cutting and repairing the outside of the waterproof tray of the drain trap has the following problems.
1. The diameter of the hole to be cut becomes large, and it is necessary to remove the hole by using a large-sized drilling machine or a filer.
2. Since the waterproof layer was cut off, it was necessary to repair the waterproof layer.
3. Since the outside of the drainage hardware is cut off, it is basically necessary to work in many steps as a work step.
4. For the same reason, it was necessary to perform each task by a worker who has specialty.
5. There was a problem that the working time was prolonged for the same reason.
6. Because cement and the like are used for the same reason, it is necessary to set a curing period and work while waiting.
There is a problem that the period of time during which the occupants cannot use the bathroom is prolonged for reasons of 7 and 3 to 6.

  In order to solve the above problem, by piercing the bottom part of the existing drain trap hardware, passing a through pipe in it, and injecting a waterproofing filler into the gap between the pierced hole and the through pipe Resolve.

The following effects are obtained because the bottom portion of the existing drain trap metal is pierced, a through pipe is penetrated therein, and a waterproofing filler is injected into a gap between the pierced hole and the through pipe.
(To be described in conjunction with the assignment number)
1. The diameter of the hole to be cut becomes large, and it is necessary to remove the hole by using a large-sized drilling machine or a filer. ⇒ ▲ black square ▼ Since the inside of the drain trap is pierced, there is an effect that the diameter of the pierced hole can be reduced and an effect that the thickness (depth) of the pierced hole is reduced. (Black square) Therefore, there is an effect that a small drilling machine can be used. ▲ Black square ▼ It has the effect of reducing the energy used for drilling. (Black square) It can be understood by comparing FIG. 8 and FIG.
2. Since the waterproof layer was cut off, it was necessary to repair the waterproof layer. ⇒ ▲ Black square ▼ Since the inside of the drain trap is pierced, it can be repaired without damaging the waterproof layer. {Black Square} In the present invention, this item is the greatest feature and the greatest effect. In fact, it is important to be able to ensure the waterproof performance of the bathroom.
3. Since the outside of the drainage hardware is cut off, it is basically necessary to work in many steps as a work step. ⇒ ▲ Black square ▼ This has the effect of simplifying the work process.
4. Each task had to be performed by a specialist. ⇒ ▲ black square ▼ Since the inside of the drain trap is pierced, there is an effect that work can be done only by piping specialists.
5. There was a problem that the working time was prolonged for the same reason. ⇒ ▲ black square ▼ The effect is that the working time can be reduced by a simple device. ▲ Black square ▼ Naturally, the construction labor cost is reduced.
6. Because cement and the like are used for the same reason, it is necessary to set a curing period and work while waiting. ⇒ ▲ Black square ▼ Since cement is not used, it has the effect of shortening the curing period.
There was a problem that the period of time during which the occupants could not use the bathroom was prolonged for the reasons described in 7, 3-6. It goes without saying that it can win the trust of those who actually use it.

An embodiment of the present invention will be described with reference to the drawings in the order of operations.
First step (removal step) The drain plate (10d) and the bowl (10e) of the drain trap hardware provided in the bathroom are removed. (See Fig. 12)
Second step (perforation step) A perforator is used to pierce the bottom of the drainage hardware (10 g) until the slab penetrates. (See FIG. 4). Drilling machines are usually equipped with diamond drill teeth. However, when the number of constructions is large, it is better to pierce with a high-pressure water jet type cutter called a jet. The cut shape is as shown in FIG.
The insert (9) (drill anchor) for attaching the third step (anchor setting step) described below with reference to FIG. 1 is attached at a predetermined position.
Fourth Step (Fitting Installation Step) The packing (8), the mounting flange (6), the reinforcing flange (7) and the joint (4) that are integrated are mounted with bolts (8).
Fifth step (through pipe mounting step) The through pipe (1) is set to a predetermined length and inserted into the joint (4).
Sixth step (waterproofing material filling step) Waterproofing the gap between the penetration pipe (1), the hole (A), the trunk part (10a) of the existing drain trap and the height adjusting member (10c) of the existing drain trap. Fill with filler (3).
Seventh step (trap attaching step) An insertion trap is inserted into the upper end of the tube.

"Effects of the embodiment"
The construction method is simplified by using the method and system of the present invention, so that the construction period is short and the construction can be performed more easily. Therefore, compared to the conventional method of cutting from the outside of the waterproof dish, it is possible to work with a small drilling machine, work faster and shorter working time, less waste, less labor costs, use less material This has the effect of reducing the noise generated. It is noteworthy that the resident's unavailable time is reduced. As a matter of course, in the conventional method, repair work such as tiles on the surface layer occurs, but traces of the repair remain (even if the same material before repair is used, the color remains matching) The problem is solved by applying the method according to the invention.

"Other Embodiment 1"
Since there is a P-type trap in addition to the insertion type drain trap, an explanation will be given. The plate (20) is attached to the upper end of the penetration pipe, and the P-type trap (21) is attached to the lower end of the pipe below the slab. ) Can be attached. (See Fig. 3)

"Effects of Embodiment 1"
Although it is difficult to set the position of the penetrating pipe, it is possible if the pipe can be set, and it is necessary to use a filler that has just the right flowability and that can stop water.

"Other Embodiment 2"
If the system members are made of resin (excluding bolts), fire resistance treatment such as the Building Standard Law and the Fire Service Law may be required. A fire-resistant coating (18) covering the exposed portion of the flange is attached, and the fire-resistant garment material is a half-shape at a symmetrical portion in the shape of a pipe joint, and a band (19) of a nonflammable material is formed at both ends in the vicinity thereof. Attach it.

"Effect of Embodiment 2"
When the system member is made of resin, it can conform to laws and regulations as a system member that satisfies the fire resistance performance such as the Building Standard Law and the Fire Service Law.

"Other Embodiment 3"
A flange (5) is attached to an end of the joint (4), and holes for attachment are provided at about three to four places between the outer periphery of the joint and the outer periphery of the flange, in the circumferential direction uniformly, and an inner surface of the flange is provided. The packing (5) has a mounting structure to simplify and speed up construction.

"Effect of Embodiment 3"
This member is an important part for keeping the gap between the perforated hole and the penetrating tube inserted evenly, so that the filler at the time of injection can be evenly distributed. If the spacing is irregular, if the filler is thin or the gap is small and the filler does not turn around, water leakage may occur from that location, so in implementing the present invention Is an important member. Since it is made in advance as a part for repair, there is an effect that the progress of construction can be accelerated. This may be taken into consideration since the drainage pan and the entire penetration pipe may be lowered when the load is concentrated, such as when a person gets on the drainage hardware. The filler can have strength, but in order to maintain the waterproof performance, the elasticity of the soft filler is better than the water-stopping performance, so such a member is mentioned as an important effect in the present invention. . From the viewpoint of construction, it is also an important effect that the flange substitutes for a temporary frame when the filler is injected.

It is sectional drawing of this invention. It is a top view of the part which renovates of this invention. It is sectional drawing of this invention. It is a sectional perspective view showing a perforated part of the present invention. It is a sectional perspective view showing after perforation of the present invention. It is sectional drawing of this invention. It is sectional drawing with the conventional floor drain trap attached. It is sectional drawing which shows the part perforated by the conventional construction method. It is sectional drawing which shows the cut-out part after perforation of the conventional construction method. It is sectional drawing which shows the state before cutting and renewing by the conventional construction method. It is sectional drawing which shows the process of the conventional construction method. It is sectional drawing which shows the site | part name of a conventional product. (Including floor drain trap hardware with waterproof pan)

Explanation of reference numerals

1 Penetration pipe 2 Insertion type trap 3 Filler 4 Joint 5 Packing 6 Mounting flange 61 Flange hole 7 Reinforcement flange 8 Mounting bolt 9 Insert 10 Floor drain trap with waterproof pan 10a Same as body 10b Same as waterproof pan 10c Same height adjusting member as above 10d Same plate 10e Same bowl 10f Starter 10g Same bottom 11 Drain pipe 12 Slab (concrete floor)
13 leveling mortar (waterproof base)
14 waterproof layer 15 waterproof layer protective mortar 16 floor finishing material (tile)
17 Drain pipe 18 Fireproof covering material 19 Mounting band A drilling process (perforation location)
B is the hanging process (hanging place)
C Trap installation process D Concrete casting process (Concrete casting section)
E Equalizing mortar construction process F Waterproof construction process G Waterproofing layer protection mortar casting process H Floor finishing process (tiling)

Claims (9)

  In the renovation of an existing building, a hole slightly smaller than the body of the drainage hardware is penetrated through the slab from the bottom of the hardware at the location of the drainage hardware, provided that the floor-type bowl-type waterproof drain trap hardware is attached. Through the through hole, through the provided hole through the through pipe that fits the hole from below the floor near the slab, and fill the waterproof material between the through pipe and the hole, as described above A method of repairing drainage characterized by being constructed.   The method for repairing drainage according to claim 1, wherein a drainage trap with a drainage hole to be inserted into the tube is attached to an upper end of the penetration tube, and a top end of the hole is aligned with a floor surface.   The drainage repair method according to claim 1, wherein a perforated plate is attached to an upper end portion of the through pipe, and a P-type trap is attached to a lower portion of the through pipe below the slab.   2. The method for repairing drainage according to claim 1, wherein the piercing means is pierced by a rotary drill.   The method for repairing drainage according to claim 1, wherein the perforating means is perforated by a high-pressure water jet cutting method.   A pipe installed inside the perforated hole (A), which is arranged from the vicinity of the floor surface to a predetermined size from below the slab, and a floor surface at the upper end of the pipe. In addition, the gap between the insertion trap installed in the pipe, the through pipe (1), the drilled hole (A), the trunk part (10a) of the existing drain trap, and the height adjusting member (10c) of the existing drain trap. The system for repairing drainage according to claim 1, characterized in that the system is configured as described above in which a waterproof filler (3) is filled.   It is characterized by comprising a joint (4) supporting the through pipe (1), a mounting flange (5) supporting the joint, a bolt (8) supporting the flange, and an insert (9) embedded in the slab. The drainage repair system according to claim 6.   A flange (5) is attached to an end of the joint (4), and holes for attachment are provided at about three to four places between the outer periphery of the joint and the outer periphery of the flange, in the circumferential direction uniformly, and an inner surface of the flange is provided. The component for repairing drainage according to any one of claims 1 to 3, wherein a packing (5) is attached.   The fire-resistant coating covering the exposed portion of the joint and the exposed portion of the flange is attached, and the fire-resistant garment is formed into a half-shape at a symmetrical portion in the shape of the pipe joint. Drainage renovation system.

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