JP2006265988A - Stop cock - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To easily and quickly perform stop cock replacing work being conventionally difficult even by a skilled person, by providing a stop cock device for surely and easily installing packing in a stop cock body and quickly fastening a box nut. <P>SOLUTION: The packing installed in the stop cock body is formed as a double structure, and an inner ring is projected, and is formed as collar-shaped packing, and the stop cock installing side of the box nut is partially cut out. Thus, the packing is surely installed in a stop cock, and installation work is facilitated by reducing water pressure by releasing a water flow to the side. <P>COPYRIGHT: (C)2007,JPO&INPIT

Description

  The present invention relates to a water faucet connected to a water faucet, particularly a water faucet of each household.

JP-A-8-68080

    The stop cock generally used for domestic water supply is installed in front of the water meter, and passes water from the upstream side to the downstream water meter and functions as the main tap of the water tap. . It becomes necessary to replace the entire stop cock, for example, the valve will not close due to aging.

  The replacement of the stop cock is usually performed while the main valve is not stopped and the water supply state is maintained. This is because if water is cut off over a wide area, it not only causes trouble for neighboring households, but also red water and turbid water may be generated after restoration.

  Replacement work takes place in a large aquarium. One of the contractors in the group puts their hands in the water tank, removes the old stop cock, attaches the packing to the new stop cock body 1, and screwes the cap nut 2. However, since the work is carried out in a water-flowing state, water is violently sprayed from the side of the cap nut 2, the packing 3 blows off with water pressure, and it is not easy to attach to the water faucet. The cap nut 2 is tightened by groping while getting drenched. These rely heavily on years of experience and intuition, and other workers must check for leaks. Moreover, even if it is an expert, when a water pressure is 0.5 Mpa or more, it will become difficult to work.

  The faucet replacement device 7 described in Japanese Patent Application Laid-Open No. 8-68080 created to facilitate difficult faucet replacement work is longer than the total length of the faucet body 4 as shown in FIG. -A pipe-shaped guide tube 9 having a diameter smaller than the diameter of the valve 11 is inserted into the stop cock main body 4 so that water ejected from the water suction / discharge tube 5 is allowed to escape into the guide tube 9 and the packing 6 is connected to the guide tube. It is extrapolated to the tip 9a. However, since the device 7 is connected to the rear portion of the guide tube 9 with the grip portion 10 and the extension pipe 8 that is a water flow guide portion, the device 7 is a large-scale device as a whole. The score increases and the cost increases. In addition, this device is not suitable for a stop cock different from a ball stop cock.

  Therefore, the present invention provides a water faucet device that can securely and easily attach the packing to the water faucet body and fasten the cap nut quickly, and is safe even for non-experts, and The purpose is to perform replacement work promptly.

  The packing to be mounted on the water faucet body has a double structure, the inner ring protrudes into a bowl-like packing as a whole, and the water faucet mounting side of the cap nut is partly cut away to let the water flow to the side. The water pressure is lowered to facilitate the faucet replacement work.

  1. It is possible to manufacture at a similar cost without increasing the number of members, only by improving some of the general members used so far.

  2. Since the protruding part of the packing is fitted to the water stop cock, it is easy to mount without flying or shifting due to water pressure.

  3. By forming the threaded part of the conventional cap nut long and providing a large number of perforations in the threaded part or the threaded part, it is possible to release a lot of water flow to the side and effectively reduce the water pressure, Replacement work can be easily performed.

  4. The replacement work, which has been based on many years of experience and intuition, can be performed reliably and easily even if it is not an expert.

  5. Since the replacement work can be performed quickly, the work time while bathing and worrying about water leakage is shortened, and the mental stress of the worker can be reduced.

  6. The structure is simple and can be supplied at low cost.

  Next, the best embodiment of the present invention will be described with reference to the drawings.

  FIG. 3 is a cross-sectional view of the packing 13 which is one of the components of the water faucet of the present invention, and FIG. 4 is a perspective view thereof.

  The packing 13 is composed of a ring 14 made of rubber and a thin metal ring 15 mounted inside the ring. A front end portion 15 a of the metal ring 15 is bent at a right angle outward in the radial direction inside the rubber ring, and the metal ring 15 has a protruding portion 15 protruding from the ring 14. The outer diameter of the thin metal ring 15 is formed to be slightly smaller than the inner diameter of the fitting pipe of the water faucet body, the protruding portion 15b of the metal ring fits into the water faucet body, and the ring flange 14a is water stopping. Since the stopper 13 is locked at the inlet of the stopper mounting pipe, the packing 13 is not blown off by the water pressure of the jet water.

  In this embodiment, a packing having a double structure made of rubber and a metal ring is formed. However, as long as the packing has a flange with a protruding inner diameter, it may be integrally formed of the same material.

  Next, a cap nut that is one of the other components will be described. FIG. 5 is a perspective view of the cap nut 16, and FIG. 6 is a perspective view showing another embodiment of the cap nut.

  The cap nut 16 comprises a brass nut portion 16 provided with an inner groove and a pipe 17 loosely inserted therein. In the present invention, the threaded portion 16a of the nut portion is formed longer than the threaded portion of the conventional cap nut, and further, the tip is cut out at several points to provide a discharge port 18, from which water is passed in the direction of the stop cock body. It escapes to the side. By forming the threaded portion 16a long, it can be greatly cut out, allowing more water to escape laterally from the large discharge port 18 and effectively reducing the water pressure.

  The cap nut shown in FIG. 6 also includes a nut portion 19 made of brass and a pipe 20 that is loosely inserted into the nut portion 19. The screw portion 19a of the nut portion 19 is formed longer than the conventional nut screw portion, and a large number of holes 21 are formed in the screw portion 19a. A large number of threaded portions 19a of the nut formed in a long length allow more water to escape from the perforations 21 to the side, effectively reducing the water pressure ejected toward the stop cock body.

  FIG. 7 is an explanatory view of a water faucet replacement operation according to the present invention. A protruding portion 25 of a thin metal ring fitted to a rubber packing 24 having a flange is fitted into the mounting opening 23 of the water faucet body 22, and is locked and attached by a flange-shaped packing 26. Next, the cap nut 27 with the pipe 28 loosely inserted and provided with a notch 29 at the tip is fitted into the stop cock attachment port 23 and is rotationally screwed. At this time, a part of the water supply 30 is discharged from the cutout portion 29 of the cap nut to the side, so that the water pressure is lower than the water flow state. At this time, it is only necessary that the inner screw of the cap nut 27 is locked to the screw of the water faucet main body, and the cap nut 27 can be easily rotated and screwed even after groping. is there.

  The present invention is applicable to a water stop cock constituted of a water stop cock main body, a packing, and a cap nut, which facilitates the operation of replacing a water stop cock, a so-called water main plug.

Explanatory drawing showing the mode at the time of replacement | exchange of the conventional water stop cock. Explanatory drawing of a prior art. Sectional drawing of packing. FIG. The perspective view of a cap nut. The perspective view which shows other embodiment same as the above. Explanatory drawing explaining the replacement state of the stop cock which concerns on this invention.

Explanation of symbols

  13, 24, packing 15, 25, metal rings 14, 26, rubber packing 16, 19, 27, cap nut 18, 21, 29, notch

Claims (1)

  A water faucet device comprising a water faucet body, a packing formed in a bowl shape with an inner diameter protruding, and a cap nut partially cut off at the tip.

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