JPH07111065B2 - Water stop for saddle tap - Google Patents

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention inserts into a saddle diversion tap that diverts water to a home through a water diversion part through a water diversion main hole to stop the diversion hole. The present invention relates to a water stop piece for a saddle faucet that is sometimes used.

[0002]

2. Description of the Related Art Recently, when water is distributed from a water main to a home, a branch hole is drilled in the water main, and a saddle water faucet is attached and fixed to the branch hole. Water is distributed to the household from the branch hole of the main pipe through the water distribution part of the saddle diversion valve. However, if this saddle water faucet is attached and fixed to the water mains and left as it is for a long period of time, the valve of this saddle water faucet will deteriorate. You need to replace it with a new one. At the time of this replacement, it is necessary to temporarily stop the water diversion, and this water shutoff method is generally done by inserting a water shutoff piece of this type into the saddle diversion tap and then piercing the water main. The water is stopped by this water blocking piece by distributing the water into the branch hole. However, in order to insert this water stop piece inside the saddle diversion tap and distribute it to the branch hole drilled in the water main, the inside of the saddle dip tap and water main should be external. Since it cannot be seen from the ground and it was buried in the soil for a long time, the whole is in the form of a lump of soil, and there are many ways to accurately position this water stop piece in the branch hole of the water main. Has been done.

Conventionally, as a method for accurately positioning the water blocking piece in the branch hole of the water main, for example, the methods shown in FIGS. 7 and 8 have been performed. What is shown in FIG. 7 is a water stop attached to the tip of the operating rod 3 and inserted into the standing portion of the saddle dip 2 fixed to the water mains 1, that is, inside the water diversion portion 21. At the tip of the piece 4A, a protruding rod-shaped portion 41 having a diameter substantially equal to that of the water main pipe 1 is projected, and when the tip end of the protruding rod-shaped portion 41 hits the inner bottom portion of the water main pipe 1, the water stop is stopped. The main body of the piece 4A is the branch hole 1 of the water main 1.
In this state, the elastic body 42 of the water blocking piece 4A is compressed and expanded by the rotating operation of the operating rod 3 to perform the water blocking action. Further, as shown in FIG. 8, a substantially L-shaped gauge 5 is attached to the upper end of the operation rod 3 having the water stop piece 4B attached to the tip thereof, and the water stop piece 4B is attached to the tip of the operation rod 4. When the water stop piece 4B is inserted into the water diversion portion 21 of the saddle water dip 2 in a worn state and the water cut piece 4B is inserted into the branch hole 11 of the water main 1, the lower end of the gauge 5 is The water stop piece 4B is accurately placed in the branch hole 11 of the water mains 1 by being positioned at a predetermined position (for example, the small projection 22 shown in FIG. 8) on the outer surface of the saddle water tap 2. Was considered to have been.

In FIGS. 7 and 8, reference numeral 23 indicates a ball valve arranged in the water diversion portion 21 of the saddle dip 2. Furthermore, in FIG. 7 and FIG. 8, reference numeral 6 is a core material for preventing corrosion, which is made of brass, copper, etc., which is distributed and attached to the branch hole 11 of the water mains 1.

[0005]

However, the above-described conventional method for distributing and positioning the water blocking pieces 4A and 4B has the following problems. That is, in the former case, since the water mains 1 is generally made of cast iron pipe, an uneven portion (for example, portions 12 and 13 shown in FIG. 7) on the inner peripheral portion thereof.
Therefore, when the tip end of the protruding rod-shaped portion 41 of the water blocking piece 4A hits this uneven portion, the main body part of the water blocking piece 4A accurately enters the branch hole 11 of the water main 1. It was sometimes delivered without being positioned. For this reason, there has been a problem that the water blocking effect of the water blocking piece 4A becomes insufficient, which may hinder the replacement work of the saddle water tap 2.

In the latter case, the gauge 5 is required in order to install the water blocking piece 4B in the branch hole 11 of the water mains 1 in a precisely positioned state, resulting in a large number of parts. There was a problem that the positioning operation was troublesome.

An object of the present invention is to solve the above conventional problems. That is, with a simple structure, it is possible to position the water blocking piece to be delivered to the branch hole of the water main by a simple operation, and further, this delivery and positioning can be performed accurately, and the stop can be performed. It is an object of the present invention to provide a water blocking piece for a saddle water faucet which is also excellent in water action effect.

[0008]

SUMMARY OF THE INVENTION In order to achieve the above object, the present invention is provided with a water distribution portion which communicates with a branch hole formed in a water main, and which has an outer periphery of the water main. Is attached and fixed to the water main by sandwiching it with a substantially arc-shaped upper and lower member, and is attached to the tip of the operating rod inside the saddle water tap that diverts the water main to the home from the branch hole. A water stop piece for a saddle diversion tap, which is inserted in a state where it is inserted into the branch hole and is used to stop the water in the branch hole. A male screw part to be screwed, and a tip insertion part having a small brim-shaped part which is screwed or integrally provided at the tip of the reverse male screw part connected to this male screw part, and is loosely fitted to this reverse male screw part. A large collar-shaped body, an elastic body arranged between the small collar-shaped portion of the tip insertion portion and the large collar-shaped body, Screwed to the rear end of the Kigyakuyu screw portion,
It is fitted to the tip of the outer cylinder of the operating rod, and is screwed back and forth with respect to the reverse male screw portion by the rotating operation of the outer cylinder, and when the screw is advanced, the elastic body is compressed and expanded via the large collar-shaped body. A small nut body for stopping water is provided, and the small collar-shaped portion of the tip insertion portion and the elastic body before compression and expansion have an outer diameter dimension smaller than the hole diameter dimension of the branch hole. The collar-shaped body has an outer diameter dimension that is at least larger than the hole diameter dimension of the branch hole.

[0009]

As described above, the small collar-shaped portion of the distal end insertion portion and the elastic body before compression and expansion have an outer diameter smaller than the diameter of the branch hole, and the large collar-shaped body has at least the above-mentioned structure. Since the outer diameter of the branch hole is larger than that of the branch hole, with this water stop piece attached to the tip of the operating rod, insert it into the water diversion part of the saddle water tap, and The small collar-shaped part at the tip insertion part of this water stop piece and the elastic body before compression and expansion are distributed into this branch hole when the water is inserted into this branch hole. It will not be further distributed into the branch hole by hitting the edge of the hole. Therefore, when the large brim-shaped body hits the hole edge of the branch hole, the main body portion of the water blocking piece, that is, the portion where the elastic body is located is in a state of being inserted into the branch hole. This delivery operation only needs to insert the water stop piece, and moreover, when the large brim-shaped body of this water stop piece hits the edge of the branch hole, it can be accurately identified.
The delivery positioning of the water blocking piece with respect to the branch hole is accurately performed.

In this way, the operation rod is operated to bring the small collar-shaped portion and the large collar-shaped body of the distal end insertion portion close to each other while the positioning of the water blocking piece with respect to the branch hole is accurately performed. By this, the elastic body arranged between the small flange-shaped portion and the large collar-shaped body of this tip insertion portion is compressed and expanded, and this elastic body is pressed against the inner peripheral surface of the branch hole of the water mains to stop water. Take action. Then, in this way, the saddle water faucet is replaced with a new one in a state where the branch hole of the water main is stopped by the water blocking piece.

[0011]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS An embodiment of a water blocking piece for a saddle dip according to the present invention will be described below with reference to the drawings. The same members as those shown in the conventional example are designated by the same reference numerals. 1 is a front view showing an embodiment of a water blocking piece for a saddle dip according to the present invention, FIG. 2 is a sectional view of the water blocking piece of FIG. 1, and FIG. 3 is a tip of an operating rod of the water blocking piece of FIG. 3 is a partial cross-sectional front view showing a state in which the elastic body of the water blocking piece is compressed and expanded from the state shown in FIG. Fig. 5 is a front view with a partial cross section. Fig. 5 shows the water stop piece attached to the tip of the operating rod inserted into the water distribution part of the saddle water tap, and the water stop piece is installed in the branch hole of the water main. FIG. 6 is a vertical cross-sectional view when the water is stopped, showing a state where the water is stopped, and FIG. 6 is a cross-sectional view when the water is stopped, showing a state in which the saddle distributor is removed from the state of FIG.

The water stop piece 4 for the saddle dip 2 according to the present invention is provided with a water distribution portion 21 for communicating with a branch hole 11 formed in the water main 1, and the water main. 1 is sandwiched between upper and lower members 24 and 25 having a substantially circular arc shape so as to be attached and fixed to the water mains 1 and the saddle water faucet 2 for dividing the water main 1 into the home from the branch hole 11 described above. Inside,
It is inserted into the tip of the operation rod 3 in a state of being attached, and is inserted into the branch hole 11 described above to be used when the water in the branch hole 11 is stopped. The water blocking piece 4 has a male screw portion 43 screwed into the female screw portion 31 at the tip of the inner cylinder 3A of the operation rod 3 and an inverted male screw portion 4 connected to the male screw portion 43.
4, a tip insertion portion 45 provided by screwing on the tip of the No. 4 and having a small collar-shaped portion 45a, a large collar-shaped body 46 loosely fitted to the reverse male screw portion 45, and a small portion of the tip insertion portion 45 described above. The elastic body 42 arranged between the collar-shaped portion 45a and the large collar-shaped body 46 and the rear end portion of the reverse male screw portion 44 are screwed together,
It is fitted to the tip of the outer cylinder 3B of the operation rod 3 and is screwed back and forth with respect to the reverse male screw part 45 by the rotation operation of the outer cylinder 3B, and at the time of screwing, the large collar-shaped body 46 is used. A small nut body 47 that compresses and expands the elastic body 42 to perform a water blocking action is provided.

Further, the small brim-shaped portion 45a of the tip insertion portion 45 and the elastic body 42 before compression and expansion are made to have an outer diameter dimension t smaller than the hole diameter dimension s of the branch hole 11 described above. The shape body 46 is at least the branch hole 1 described above.
The outer diameter dimension u is larger than the hole diameter dimension s of 1.
The outer diameter dimension u is about 1.1 times the hole diameter dimension s.

As shown in FIG. 2, the elastic body 4 is provided on the opposing surfaces of the small collar-shaped portion 45a of the tip insertion portion 45 and the large collar-shaped body 46.
The recessed recessed portion 45b into which the tapered portions at both ends of 2 are fitted.
And 46b are provided. Saddle water tap 2 mentioned above
The upper and lower members 24, 25 are freely connectable / separable by a bolt 26 and a nut 27. A protective material 28 for preventing rusting is fitted into the bolt insertion holes of the upper and lower members 24 and 25 of the saddle water tap 2, respectively. The water diversion unit 21 is attached and fixed to the central portion of the upper member 24 in a state of standing upright. The water distribution portion 21 is provided with a water distribution hole 21a penetrating vertically, and a ball valve 23 is arranged in the middle of the water distribution hole 21a. The ball valve 23 is configured to rotate in the front-rear direction in FIG.

Usually, a water distribution pipe (not shown) for household water distribution is connected to the upper end portion of the water dividing portion 21 by a screwing structure or the like so that the water supply main pipe 1 is branched into the branch hole 11.
The tap water is supplied to the home through the water diversion part 21 of the saddle dip 2 and the water pipe. The saddle water tap 2 is embedded in the ground while being fixedly attached to the water main 1. Then, after a long period of use, the ball valve 23 arranged in the water diversion portion 21 of the saddle dip 2 is deteriorated, so that the ball valve 23 or the saddle dip 2 as a whole is replaced with a new one. Need to be replaced.

At the time of this replacement, the water blocking piece 4 of the present invention is used to temporarily stop the branch hole 11 of the water mains to facilitate the replacement work. As shown in FIG. 5, the water stop piece 4 attached to the tip of the operation rod 3 is inserted into the water dividing portion 21 of the saddle water tap 2, and is inserted into the branch hole 11 of the water main 1. Then, the elastic body 42 of the water blocking piece 4 is compressed and expanded, and pressed against the inner peripheral surface of the branch hole 11,
The water blocking action described above is performed. In FIG. 5, reference numeral 6 is a core material made of brass, copper, etc., which is distributed and attached to the branch hole 11 of the water mains 1, for preventing corrosion, and the water blocking piece 4 is provided in the core material 6. It will be distributed. Further, in FIG. 5, reference numeral 7 is a cylindrical support tool for supporting the operation rod 3, and is attached to the upper end portion of the water diversion portion 21 of the saddle water dip 2 by screwing or the like. A cap body 8 is covered on the upper end of the support tool 7, and an inner surface of the cap body 8 is covered with a rubber protective material 8.
1 is interposed, and the outer cylinder 3B of the operation rod 3 is in a rotatable state. An O-ring 82 for preventing water leakage is arranged on the inner peripheral surface of the support 7 near the upper end thereof. Further, in FIG. 5, reference numeral 9 denotes an operation / protection cap that covers the upper end portion of the operation rod 3, and an O-ring 91 for preventing water leakage is arranged between the operation / protection cap 9 and the inner cylinder 3A. It is set up. The operation rod 3 is a portion of the operation and protection cap 9, and is configured to be able to rotate the inner cylinder 3A and the outer cylinder 3B separately.

By rotating the inner cylinder 3A and the outer cylinder 3B of the operating rod 3, the water blocking piece 4 is moved from the initial state of distribution into the branch hole 11 shown in FIG. 45a
The large brim-shaped body 46 is approached to the tip insertion portion 4
5, the elastic body 42 disposed between the small brim-shaped portion 45a and the large brim-shaped body 46 is compressed and expanded to come into pressure contact with the inner peripheral surface of the core material 6 in the branch hole 11, thereby providing a water blocking effect. Is done.

In the present invention, as described above, the water blocking piece 4
The small collar-shaped portion 45a of the tip insertion portion 45 and the elastic body 42 before compression and expansion have an outer diameter dimension t smaller than the hole diameter dimension s of the branch hole 11 described above, and the large collar-shaped body 46 described above,
Since the outer diameter dimension u is at least larger than the hole diameter dimension s of the branch hole 11, the water dividing portion 2 of the saddle water dip 2 is attached with the water blocking piece 4 attached to the tip of the operating rod 3.
When inserted into the inside of 1 and distributed into the branch hole 11 of the water main 1, the small brim-shaped portion 45a of the tip insertion portion 45 of the water blocking piece 4 and the elastic body 42 before compression and expansion are This branch hole 11
However, the large collar-shaped body 46 hits the hole edge of the branch hole 21 and is not further distributed into the branch hole 11 (however, in this embodiment, the core material 6 is not distributed inside the branch hole 11). Since it is fitted, the hole diameter dimension s of the branch hole 11 is regarded as the inner diameter dimension of the core material 6. Therefore, when the large brim-shaped body 46 hits the hole edge of the branch hole 11 (in this embodiment, the hole edge of the core material 6), the main body portion of the water blocking piece 4, that is, the elastic body 42 is positioned. The part is placed in the branch hole 11. This delivery operation only needs to insert the water blocking piece 4, and the large brim-shaped body 46 of this water blocking piece 4 has the edge of the branch hole 11 (in this embodiment, the hole opening of the core material 6). When it hits the edge, it can be accurately determined, so that the delivery positioning of the water blocking piece 4 with respect to the branch hole 11 can be accurately performed.

In this way, the operation rod 3 is accurately positioned in a position where the water blocking piece 4 is inserted into the branch hole 11.
Is operated to bring the small brim-shaped portion 45a of the tip insertion portion 45 and the large brim-shaped body 46 into close proximity, so that the small brim-shaped portion 45a and the large brim-shaped body 46 of the tip insertion portion 45 are arranged. The elastic body 42 is compressed and expanded, and the elastic body 42 is brought into pressure contact with the inner peripheral surface of the branch hole 11 of the water mains 1 (in this embodiment, the inner peripheral surface of the core material 6) to perform a water blocking action. . Then, while the branch hole 11 of the water main 1 is stopped by the water blocking piece 4 in this way, the saddle water tap 2 is removed and replaced with a new one as shown in FIG. When the saddle water tap 2 was replaced with a new one, the operating rod 3 was operated to release the compression and expansion state of the elastic body 42 of the water blocking piece 4, and this water blocking piece 4 was removed together with the operating rod 3. After that, a domestic water pipe is connected and communicated with the upper end of the water diversion portion 21 of the saddle water dip 2 so that tap water can be supplied to the home again.

As shown in FIG. 4, when the elastic body 42 of the water blocking piece 4 is compressed and expanded, the lower end of the elastic body 42 of the core member 6 fitted in the branch hole 11 of the water mains 1 is inserted. Since it swells greatly on the lower surface side, there is an advantage that the waterproof function is completely performed. Furthermore, in this embodiment, the cap 8 is covered on the tubular support 7 for supporting the operation rod 3, and the O-ring 82 for preventing water leakage is provided on the inner peripheral surface of the support 7 near the upper end thereof. Is provided, there is no leakage of water from the water dividing portion 21 of the saddle dip 2 to the outside, and there is an advantage that replacement work can be easily performed. Further, the operation / operation protection cap 9 is put on the upper end portion of the operation rod 3, and the O-ring 91 for preventing water leakage is arranged between the operation / operation protection cap 9 and the inner cylinder 3A. There is no water leakage from the gap between the outer cylinder 3B and the inner cylinder 3A of No. 3, and there is an advantage that the replacement work is easier to perform.

[0021]

As described above, according to the present invention, the water distribution main body is provided with the water distribution portion that communicates with the branch hole formed in the water mains, and the outer periphery of the water main is substantially arcuate up and down. Inserted in the state of being attached to the tip of the operating rod, inside the saddle water tap that is attached and fixed to the water main by sandwiching it with a member to divert the water main to the home from the branch hole, A water stop piece for a saddle diversion valve, which is inserted into the branch hole and used to stop the water in the branch hole, and which is a male screw screwed to a female screw portion at the tip of the inner cylinder of the operation rod. Portion, a tip insertion portion having a small collar-shaped portion that is screwed or integrally provided to the tip of the reverse male screw portion that is continuous with this male screw portion, and a large collar-shaped body that is loosely fitted in this reverse male screw portion. An elastic body disposed between the small collar-shaped portion of the tip insertion portion and the large collar-shaped body, and the rear end of the reverse male screw portion. And is fitted to the distal end of the outer cylinder of the operating rod, and is screwed back and forth with respect to the reverse male screw part by the rotation operation of the outer cylinder, and when the screw is advanced, the elastic force is exerted through the large collar-shaped body. A small nut body that compresses and expands the body to perform a water blocking action is provided, and the small flange-shaped portion of the tip insertion portion and the elastic body before compression and expansion have an outer diameter dimension smaller than the hole diameter dimension of the branch hole. Since the large collar-shaped body has an outer diameter dimension that is at least larger than the hole diameter dimension of the branch hole, the following effects are achieved.

That is, the outer diameter of the large collar-shaped body provided on the water blocking piece is made larger than at least the hole diameter of the branch hole of the water main, and the large collar-shaped body divides the water blocking piece into the branch of the water main. At the time of distributing the water blocking piece to the hole, the structure is such that by hitting the edge of the branch hole, the positioning of the water blocking piece with respect to the branch hole of the water main can be performed. With a simple operation, it is possible to position the water blocking piece to be distributed to the branch hole of the water mains, to reliably stop the water, and to replace the saddle water tap. This delivery positioning can be performed accurately, and the water blocking effect is excellent.

[Brief description of drawings]

FIG. 1 is a front view showing an embodiment of a water blocking piece for a saddle dip according to the present invention.

FIG. 2 is a cross-sectional view of the water blocking piece in FIG.

FIG. 3 is a partially sectional front view showing a state in which the water blocking piece of FIG. 1 is attached to the tip of an operation rod, is inserted into a branch hole of a water main, and is positioned.

FIG. 4 is a partially sectional front view showing a state in which the elastic body of the water blocking piece is compressed and expanded from the state of FIG.

FIG. 5 shows a state in which a water stop piece attached to the tip of an operating rod is inserted into a water distribution portion of a saddle water tap, and the water stop piece is inserted into a branch hole of a water main. It is a longitudinal cross-sectional view when water is stopped.

FIG. 6 is a cross-sectional view showing a state in which the saddle water faucet is removed from the state of FIG. 5 in order to replace it with a new one when water is stopped.

FIG. 7 is a cross-sectional view showing an example of a conventional method for distributing and positioning a water blocking piece to a branch hole of a water main.

FIG. 8 is a cross-sectional view showing another example of a conventional method of distributing and positioning a water blocking piece to a branch hole of a water main.

[Explanation of symbols]

 1 Water Main Line 11 Branch Hole 11 2 Saddle Water Stopper 21 Water Dividing Section 24 Upper Member 25 Lower Member 3 Operation Rod 3A Inner Cylinder 31 Female Screw Part 3B Outer Cylinder 4 Water Stopper 42 Elastic Body 43 Male Screw Part 44 Reverse Male Screw portion 44 45 Tip insertion portion 45a Small collar-shaped portion 46 Large collar-shaped body 47 Small nut body s Hole diameter dimension of the branch hole 11 t Outer diameter dimension of the elastic body 42 and the small collar-shaped portion 45a Outside of the large collar-shaped body 46 Diameter dimension

Claims (1)

[Claims] 1. A water distribution main body is provided with a water distribution portion for water distribution, which communicates with a branch hole formed in the water mains. Inserted in the state of being attached to the tip of the operating rod inside the saddle diversion faucet which is attached and fixed to divert the water main from the branch hole to the home, and is distributed to the branch hole to branch the water. A water stop piece for a saddle diversion tap used to stop water in a hole, wherein a male screw portion screwed into a female screw portion at the tip of the inner cylinder of the operation rod and a reverse screw connecting to the male screw portion. A tip insertion portion having a small collar-shaped portion that is screwed or integrally provided at the tip of the male screw portion, a large collar-shaped body that is loosely fitted in the reverse male screw portion, and a small collar shape of the tip insertion portion. And an elastic body disposed between the large collar-shaped body and the rear end portion of the reverse male screw portion, and the outer cylinder tip of the operating rod is screwed. And is screwed forward and backward with respect to the reverse male screw portion by the rotation operation of the outer cylinder, and when the screw is advanced, the elastic body is compressed and expanded through the large collar-shaped body to perform a water blocking action. A small nut body is provided, and the small collar-shaped portion of the tip insertion portion and the elastic body before compression and expansion have an outer diameter dimension smaller than the hole diameter dimension of the branch hole, and the large collar-shaped body at least the A water blocking piece for a saddle water tap, which has an outer diameter larger than the diameter of the branch hole.