JPH08159356A - Mounting method for core adhering to snap tap and member thereof - Google Patents

Abstract

PURPOSE: To eliminate space for fitting an O-ring, and shorten and make compact a core member by externally expanding and bending the top of the core member under pressure as a bent structure, and coupling the core member to a snap tap via the bend of the top as an adhesion structure. CONSTITUTION: Regarding the installation of a snap tap 1 to turn on and off the supply of water to a pipe branched from the water main 2 of water service piping, the water main 2 is fitted with the snap tap 1, and a cap 17 is removed to keep a ball valve 15 in a released state. Furthermore, a water flow passage 21 is drilled through the water main 2 for communicating the upper release hole 18 of the snap tap 1 to the water main 2. Then, the valve 15 is closed to interrupt the supply of water, and an inserter 5 with an insertion lever 4 having a core member 3 fixed is engaged with a threaded section 45, thereby opening the valve 15. Thereafter, the lever 4 is pressed in the passage 21 of the water main 2 via a snap tap water flow port 11 on the operation of a pushing handle 55, and the top of the member 3 is bent with an inserting frontage flange 43, thereby being kept in close contact with the peripheral end of the port 11. Thereafter, the lever 4 is pulled out.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION The present invention relates to the installation of a water faucet which is provided at a base of a branch pipe and controls opening and closing of water supply to the branch pipe when water is branched from a main pipe of a water pipe and distributed. From the perforated part of the main pipe, which is the water port to the water faucet, to the water faucet water inlet, it is inserted into the hole of the water faucet to prevent leakage and to prevent rust on the perforated wall. And its members.

[0002]

2. Description of the Related Art Conventionally, a core member has a flange at an upper end portion, and has a protruding edge shape with a lower end edge protruding inward. By pushing the insertion rod further until it touches the outer edge of the outer portion and inserting the insertion rod further into the lower end protruding edge portion of the core member, the core member is flared and engaged with the outer edge of the perforated portion.

On the other hand, a reduced-diameter portion having a large thickness is provided at an upper portion of the core member, a protruding edge shape having a lower edge protruding inward is provided at a lower portion, and an O-ring is attached to an outer diameter portion. A method of enclosing a rubber-like member and inserting the insertion rod enlarged diameter portion so that the reduced diameter portion and the lower end protruding portion are flared to expand and squeeze tightly from the main hole to the water faucet passage, Proposed by the applicant.

[0004]

The conventional method of mounting a core member on a main pipe perforated portion by expanding valleys of an upper end flange and a lower end protruding edge portion does not involve the expansion of the core member only at the main pipe perforated portion. Since the core member is attached by the valgus valgus at the upper end flange and the lower end, there is no engagement of the core member with the water faucet, resulting in an unstable attachment structure in which the perforated wall and the outer periphery of the core member do not adhere to each other. There is a problem that rust is generated from the gap and contamination or the like occurs due to rust leakage.

Regarding the engagement and watertightness of the core member with respect to the water faucet, the applicant who made the core member long and expanded the wall thickness reduced diameter portion so that the perforation wall and the outer periphery of the core member were in close contact with each other. Although avoided by the above-mentioned new proposal, this method has a structure in which an O-ring is attached to the outer diameter portion of the upper end flange of the core member to maintain watertightness.

A certain space is required to mount the O-ring on the outer diameter of the upper end flange of the core member. If the distance between the water faucet port and the main pipe perforated portion is short, the core member cannot be mounted. There is a disadvantage that it is possible.

[0007]

SUMMARY OF THE INVENTION The present invention has been made in view of the above circumstances, and has been made in response to the above circumstances. A core member for a water faucet has a bent structure in which a top portion of a core member is widened outward by pressing and bent. Is made to have a close contact structure by bending the top of the core member, thereby eliminating the need for an O-ring mounting space and shortening the core member.

Further, the insertion rod for mounting the core member is provided with an enlarged diameter portion having a diameter slightly larger than the inner diameter of the core member and a tapered lower portion, and after inserting the core member into the water faucet passage hole and the main pipe perforated portion,
The diameter of the entire core member was increased by press-fitting the enlarged diameter portion, and the entire outer peripheral surface of the core member was pressed against the water faucet passage and the main pipe perforated wall.

Further, the required press contact surface on the outer peripheral surface of the core member includes:
A coating layer made of an elastic material such as rubber is fixed to further enhance the watertightness by pressing.

[0010]

As shown in FIGS. 2 to 4, the cylindrical core member 3 inserted into the water distributor 11 and the main hole 21 by the insertion rod 4 is the core member of the insertion rod 4 when first pressed. Dressing section 41
Is press-fitted into the constricted portion 32 formed by the protruding edge portion 31 at the lower end of the core member 3 so that the protruding edge portion 31 is everted. Then, the outer peripheral surface of the core member is pressed against the water faucet water inlet 11 and the hole wall of the main pipe perforated portion 21.

When the insertion rod 4 is inserted up to the flange portion 43 and reaches the top portion 33 of the core member 3, when the insertion rod 4
Since 34 is in contact with and supported by the peripheral surface of the main pipe perforated portion, a strong pressure is further applied by the flange portion 43 of the insertion rod using this as a force point, and the top portion 33 is bent outward and widened as shown in FIG. The widened end 36 is pressed against the hole wall of the water faucet passage 11.

On the other hand, the enlarged diameter portion 42 of the insertion rod extends through the inner edge of the core member 3 up to the diameter of the enlarged diameter portion 42 throughout the flared protruding edge portion 31. In some cases, the fastening head 44 having a slightly smaller diameter can be passed, and the insertion rod 4 can be removed simultaneously with the completion of the mounting of the core member.

[0013]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS An embodiment of the present invention in which a water faucet is installed and a close contact core is mounted will be described below with reference to the drawings. Reference numeral 1 denotes a main body of a water faucet, a saddle 12 fastened to a main pipe 2 of a water supply pipe in which a water faucet is installed at a lower part, and a water inlet 11 at an upper part thereof.

The upper part of the water inlet 11 is a valve chamber 13 and a ball valve rotating shaft 14.
The ball valve 15 which is rotated by the operation rod fitted to the valve is stored, and the water passage 16 to the branch pipe is opened and closed. The upper part of the valve chamber 13 is an open hole 18 and is always closed by a cap 17.

First, the main water pipe 2 in which the water faucet 1 is installed is attached to the water faucet by the saddle 12 attached to the water faucet, the cap 17 is removed, and the ball valve 15 is opened. Since the through hole to the main pipe 2 is opened from the faucet upper opening hole 18 through the valve hole 19, the water hole is punched 21 in the main pipe 2 through the open hole by a punching machine (not shown).

When the water passage hole is pierced, water overflows into the drainage channel provided in the piercing machine due to the water pressure of the main pipe 2, and impurities such as swarf due to the perforation are discharged together with the overflowing water. And stop the water, and screw part 45 into which cap 17 was screwed
Then, the insertion rod 4 with the core member 3 fixed thereto is joined to the insertion machine 5, the screwing portion 51 of the insertion machine 5 is screwed, and the ball valve 15 is opened.

When the ball valve 15 is opened, the through hole to the main pipe 2 is opened again from the water diversion plug upper opening hole 18 through the valve hole 19. If the length of the insertion rod 4 cannot be accommodated in the space between the insertion rod accommodation portion 52 of the insertion machine 5 and the opening 18 of the water faucet, the length is adjusted with the space adapter 6 interposed.

The insertion rod 4 is provided at its upper end with a screwing rod 46 for screwing with the screw hole 53 of the insertion machine 5, a flange portion 43 having a diameter larger than the inner diameter of the core member 3 at the upper portion, and a flange portion 43 having a diameter smaller than the inner diameter of the core member at the lower portion. An enlarged diameter portion 42 having a slightly larger diameter and a tapered surface at the lower portion, and a core member mounting portion 41 having a slightly smaller diameter than the inner diameter of the core member and a tapered end at the lower portion are provided at the lower portion thereof, and the lower end thereof is substantially the same as the enlarged diameter portion 42. A fastening head 44 having a diameter is screwed.

The insertion machine 5 has a pushing rod 54 fitted therein,
A screw hole 53 for joining the insertion rod 4 by being screwed with a screw rod 46 at the upper end of the insertion rod is provided at the lower end thereof, and an opening hole for the upper part of the water faucet is provided.
The insertion rod 4 having the core member 3 attached thereto is provided with a screwing portion 51 and a pushing handle 55 which are screwed with the screwing portion 45 on the outside of the 18 to fix the insertion machine 5 on the water faucet. Forcibly press-fit the water pipe 11 into the main pipe perforated part 21.

The flange portion 43 of the insertion rod 4 has a tapered surface 47 at the lower end when the top portion 33 of the core member 3 is in a valgus shape, and is substantially flat when the top portion 33 is in an expanded shape. .

The core member is made of a plastic material such as pure copper or phosphorous deoxidized copper. The outer peripheral surface is bent by pressing the top portion 33 of the cylindrical main body 3 to which the coating layer 37 of the elastic material is fixed by baking rubber or the like. A predetermined bent structure 35 is provided, and a flange portion 34 for supporting a core member is formed on the lower surface of the water main 2 to be mounted. In addition, if a notch concave portion corresponding to the curved shape of the upper surface of the water main pipe 2 to be mounted on the lower surface of the flange portion 34 is formed, the core member can be fitted and fitted to the curved shape of the upper surface of the water main pipe 2.

As shown in FIG. 5, the bent structure 35 is formed at a wide end 36 which slightly protrudes outward and bends, and is bent outward by the pressing of the top portion 33 to be bent, and the wide end 36 further protrudes to separate water. It is configured to be pressed against the inner wall of the tap water inlet 11 or, as shown in FIG. 7, the press-fitting of the tapered surface at the lower end of the flange portion 43 of the insertion rod 4 diverges and bends, so that the widened end 36 is a water tap. It is configured to be pressed against the inner wall of the water inlet 11.

The lower end of the core member is a constricted portion 32 formed by a protruding edge portion 31 projecting inwardly into a hook shape.
The cylindrical body 3 to which the coating layer 37 is fixed as a whole is inserted by insertion of the mounting part 41 by pressing from above and press-fitting of the enlarged diameter part 42. The diameter is expanded and pressed against the insertion peripheral wall, and the protruding edge portion 31 is everted and the main hole is pierced.
It is attached to the lower edge of the lining layer 21 or 21.

Further, since the coating layer 37 made of an elastic material is fixed to the outer peripheral surface of the protruding edge portion 31, the insertion rod 4 is pulled up after the diameter-enlarging portion 42 is inserted and is fixed from the mounting portion 41. head
When the diameter reaches 44, the diameter of the fastening head 44 is smaller than that of the fastening head 44. When the fastening head having a slightly larger diameter is pulled up, the protruding edge portion 31 expands and adheres to the lower edge of the main pipe hole 21. The diameter of the core member 3 is increased as a whole by inserting the enlarged diameter portion 42, and a water faucet passage is provided.
11 and main pipe perforated part 21
It is not necessary to perform the squeezing and adhesion of 31.

The core member 3 constructed as described above is first inserted into the distal end mounting portion 41 of the insertion rod 4 and then the fixing head
The screw 44 is screwed and fastened, and the screw rod 46 at the upper end of the insertion rod is screwed into the screw hole 53 of the pushing rod 54 to join the insertion machine 5 and the insertion rod 4.

This is inserted through the upper opening hole 18 of the water faucet 1 and the screwing part 51 of the insertion machine 5 is screwed into the screwing part 45 of the water faucet, so that the insertion machine 5 is placed on the water faucet. After the core member 3 is enlarged and mounted as described above by forcibly pressing the insertion rod 4 to which the core member 3 is mounted with the pushing handle 55 from the water tap water inlet 11 into the main pipe perforated portion 21 with the pushing handle 55 fixed. The insertion rod 4 is removed.

[0027]

Since the present invention is constructed as described above, O
The core member can be shortened by saving the space for mounting the ring and the core member can be shortened, and the core member is entirely expanded by inserting the insertion rod enlarged diameter portion 42, so that the elastic material coating layer on the outer peripheral surface is completely adhered to the inner wall of the mounting hole This enables stable attachment of the faucet core.

If the length of the insertion rod 4 cannot be accommodated in the space between the insertion rod accommodating portion 52 of the insertion machine 5 and the opening 18 of the water faucet, the length is adjusted by interposing the space adapter 6. Since the insertion device can be set, the setting of the inserter can be performed according to the length of the core member, and the setting environment of the core member can be coped with.

[Brief description of drawings]

FIG. 1 is an overall side view of a water faucet with a cutaway section of a main part showing a relationship between the water faucet and a contact core.

FIG. 2 is a longitudinal sectional side view of the insertion rod and the core member, showing a state where the core member is fixed to the insertion rod and fitted into the main pipe perforated portion.

FIG. 3 is a longitudinal sectional side view of the insertion rod and the core member, showing a state in which the insertion rod enlarged-diameter portion is forcibly press-fitted into the core member and inserted into the core member, and the top of the core member is squashed outward to be widened and bent by pressing.

FIG. 4 shows a state in which the insertion rod enlarged-diameter portion is forcibly press-fitted into the core member and inserted into the core member, and the top of the core member is squashed and widened outward by pressing, and the insertion rod is removed. Longitudinal side view

FIG. 5 is a vertical sectional side view before mounting the core member of the embodiment in which the abdominal portion on the top side is bent and widened and bent.

FIG. 6 is a longitudinal sectional side view showing a mounted state of the core member of FIG. 5;

FIG. 7 is a longitudinal sectional side view before mounting of a core member of an embodiment in which a top portion has a varus width.

FIG. 8 is a vertical sectional side view showing a mounted state of the core member of FIG.

FIG. 9 is a side view of an insertion rod corresponding to the core member of FIG. 5;

10 is a side view of the insertion rod corresponding to the core member of FIG.

FIG. 11 is an exploded side view of the entire insertion device with a partially cutaway cross section showing the relationship between the insertion machine and the insertion rod.

[Figure 12] Side view of the space adapter with a cutaway section

[Explanation of symbols] 1 Main water tap body 11 Water supply tap water inlet 12 Tightening saddle 13 Water tap valve chamber 14 Ball valve rotating shaft 15 Ball valve 16 Water passage to branch pipe 17 Cap 18 Opening hole for water tap 19 Ball valve valve hole 2 Main pipe of water supply pipe 21 Main pipe perforated part 22 Main pipe inner wall lining layer 3 Core member 31 Projected edge part of core member lower end 32 Constriction part constituted by projected edge part 33 Top part of core member 34 Flange 35 of the core member 35 Bending structure of the top of the core member 36 Bend widening end of the top of the core member 37 Coating layer of elastic material 4 Insertion rod 41 Core member mounting portion 42 Expansion portion 43 Insertion rod flange portion 44 Fastening head 45 minutes Screw part at the top of the faucet 46 Screw rod at the upper end of the insertion rod 47 Tapered part at the base of the pressing flange 5 Inserter 51 Threaded part of the inserter 52 Insert rod housing 53 Screw hole at the lower end of the push rod 54 Push rod 55 Push handle 6 Space Adapter 61 Space Adapter Male Thread 62 Space Adapter Of the female thread

Claims (7)

[Claims] 1. A tubular core member made of an elastic plastic material having a bent structure in which a top portion is widened outward by pressing and bent, and a flange is provided at a lower portion thereof, and a flange having a diameter larger than an inner diameter of the core member is provided at an upper portion. It is characterized in that it is fastened to the insertion rod that it has, and that it is pushed through by inserting the water faucet and the perforated portion of the main pipe, and the top of the core member is bent by the insertion rod flange so as to be in close contact with the water passage edge of the water faucet. How to install the dip contact core 2. A bent structure is provided at the lower edge of the top of the core member, and the top end edge is squashed inward by pressing of the insertion rod flange so that the side abdomen is pushed outward. How to attach the faucet core 3. A method according to claim 1, wherein a tapered portion is provided at a base portion of the insertion rod flange, and a top end edge of the core member is bent in a widening direction by pressing. 4. A bent structure in which the top is bent by pressing,
A core member in which a coating layer made of an elastic material is fixed to a required portion of an outer peripheral surface of a cylindrical body made of a plastic material having a flange provided at a lower portion thereof. 5. An enlarged portion having a flange having a diameter larger than the inner diameter of the core member at an upper portion, a diameter slightly larger than the inner diameter of the core member and a tapered surface at a lower portion, and a lower portion having a diameter slightly smaller than the inner diameter of the core member. A water faucet sticking core insertion rod, which is provided with a core member mounting portion having a tapered end, and a lower end of which is screwed with a fastening head having substantially the same diameter as the enlarged diameter portion. 6. A tap insertion core insertion rod according to claim 5, wherein a tapered portion is provided at the base of the pressing flange. 7. An upper screw of a water faucet, which is fitted with a push rod which is joined to the insertion rod and which is screwed and fixed to an upper opening of the water faucet, and a water faucet tight core. Space adapter that can be interposed between joints