JP2010077787A - Water antitheft hydrant upper part - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To prevent a water theft that may be committed since a water line is made to supply water easily by an anyone's rotational operation of a hydrant handle on a hydrant. <P>SOLUTION: The present invention discloses a key type shared hydrant, a joint of a hydrant handle and hydrant rod is formed into a spline-shaped knurl, a cover for protecting a joint part of the hydrant rod is provided in a box nut in a hydrant upper part, to evade the hydrant rod from being exposed, and the water flow operation in the hydrant is deterred from being carried out by a tool such as pinchers, or a general shared hydrant key. <P>COPYRIGHT: (C)2010,JPO&amp;INPIT

Description

  The present invention relates to a key-type water faucet that requires a faucet key at the time of water supply without fixing a water supply handle to a common water faucet, that is, a stopper rod of the water faucet.

  Conventionally, in a key-type common water tap, a key-type common water tap in which a water supply handle can be attached to and detached from a plug bar, a water supply handle, and a mounting bag nut, which are the upper part of the water tap, has been adopted. In this case, the joint between the water supply handle and the plug rod is provided with a convex regular square column at the tip of the plug rod, and a concave regular square column at the tip of the water handle. It is possible to open and close water flow from the handle to the plug bar.

  If there is no faucet key that is a faucet handle, it is not possible to pass water, allowing only the person who owns the faucet key to use water, and preventing others from using the water. It becomes possible to prevent theft of water. However, this conventional structure has the following drawbacks.

  First, since the tip of the plug bar has a convex square prism shape, the water tap can be easily opened and closed by using a predetermined wrench or pliers. Above all, the upper part of the key-type shared hydrant is standardized so that anyone can easily obtain the hydrant key. Therefore, it cannot be said that the water theft prevention function is sufficient.

  The cap nut at the top of the faucet can be attached and detached with a wrench. If the cap nut is removed, the plug bar having a square prism with a convex tip is exposed and the faucet can be opened and closed more easily.

  Similarly, it is difficult to prevent water theft even if the tip of the stopper rod and the faucet handle are each formed as an uneven spline-shaped knurl.

  It is an object of the present invention to make it possible to operate a water faucet for the first time using a predetermined water faucet handle, and to make the operation of the water faucet difficult with a general machine tool or a standardized common water faucet key. .

  And it is in solving the subject of this invention by replacing only the upper part of the existing water faucet, and avoiding the unnecessary work of replacing the whole water faucet.

  The present invention has an uneven spline-shaped knurled portion at the tip of the stopper rod and the faucet handle, and the knurled portion of the stopper rod is located in a predetermined housing, and the stopper rod is rotated by a tool such as a wrench or a pliers. It is to prevent this.

  The housing is provided with a keyhole portion that can be inserted into the faucet handle that fits into the plug bar, but cannot be easily operated even with radio pliers or the like.

  And the hexagon socket set screw is attached to the cap nut at the upper part of the water faucet to make it difficult to remove.

  Further, the housing above the faucet of the present invention has a drain hole for draining water. This is because, when rainwater or the like accumulates in the housing when the plug bar is installed vertically upward, it is difficult to insert the water supply handle into the housing even if a certain fit is taken into consideration.

  By using the shared hydrant with the key of the present invention, the use of the hydrant of another person is prevented, and only the owner of the hydrant who owns the exclusive hydrant handle is made easy to prevent theft of water. It is possible.

  In addition, the upper part of the conventional key-type common water faucet requires a special shape that the plug bar has a convex quadrangular prism at its tip, so when changing a water faucet such as a horizontal water faucet to a common water faucet It is necessary to replace it with a predetermined stopper rod. In this case, since it is necessary to remove the plug bar and the water stop function of the water tap does not work, it is necessary to stop the water tap which is the main tap of the water supply, but the upper part of the common water tap in the invention of claim 1 shown in FIG. Since it is possible to use the plug rod of the basic water faucet as it is, such trouble can be avoided.

  Hereinafter, embodiments of the present invention will be described with reference to FIGS. 1 to 5.

  In FIG. 1, reference numeral 1 denotes a cap nut of a stopper rod 2, which has a housing portion 7 that allows the stopper rod 2 to be rotated with a predetermined faucet handle and makes it difficult to pinch the stopper rod 1 with radio pliers. . By reducing the inner diameter of the opening 6 and increasing the distance from the opening 6 to the spline-shaped convex knurled portion 3 which is the tip of the plug rod 2, the commercially available radio pliers can grasp the knurled portion 3. Therefore, the rotation operation of the stopper rod 2 becomes impossible.

  In addition, the inner diameter shape of the opening of the cap nut 1 is made as small as possible, and the inner diameter shape from there to the housing portion is tapered so as to be a semiconical shape. As a result, the clearance of the fitting dimension can be reduced as much as possible, and the flexible performance at the joint between the knurled portion 3 of the plug bar and the knurled portion 12 of the faucet handle 11 can be improved.

  Further, by providing the tapered portion 4 at the tip of the knurled portion 3, it becomes difficult to slide the knurled portion 3 of the plug bar with the radio pliers, making it difficult to grasp and making the rotation operation more noticeable. Can do.

  The cap nut 1 has a leak hole 8 for discharging rain water or the like, and rain water or the like is prevented from collecting in the housing of the cap nut 1.

  2 shows a front view of the hydrant handle 11, and FIG. 3 shows a lower plan view of the spline-shaped concave knurl portion of the hydrant handle. Here, 12 is a spline-shaped concave knurl part, and the outer diameter is a fitting dimension that can be inserted into the opening 6 of the cap nut 1.

  Spline-shaped knurls are standardized, and if a non-standard knurl shape is adopted, it is impossible to operate a handle on a general commercial product, and a dedicated hydrant handle serves as a lock, further preventing water theft The effect of can be aimed at.

  In FIG. 1, a cap nut cannot be easily removed by providing the cap nut 1 with a hexagon socket set screw at its screwed portion. This is because the plug bar is exposed by removing the cap nut 1, and it is possible to avoid the fact that the plug bar can be easily rotated to perform a water flow operation.

  It is sectional drawing of partial crushing which shows the embodiment which attached the key type common water faucet part of the present invention to the water faucet part of Japanese Industrial Standard.   It is sectional drawing of partial crushing of the faucet handle of this invention.   FIG. 3 is a lower plan view of a spline-shaped concave knurl portion of the faucet handle in FIG. 2.

Explanation of symbols

DESCRIPTION OF SYMBOLS 1 Cap nut 2 Plug bar 3 Spline-shaped convex knurled part 4 Taper part of plug bar tip 5 Packing 6 Opening part 7 Housing 8 Leak hole 9 Hexagon socket set screw 10 Water faucet body 11 Water faucet handle 12 Spline-shaped concave Knurled part

Claims (1)

  This is a common water faucet, with a spline-shaped convex knurled part at the tip of the plug bar, and a cap nut with a cylindrical protective cover that houses the knurled part of the plug bar. Is equipped with a spline-shaped concave knurled part that allows the plug bar to be rotated, and the water faucet's water supply and shut-off function is made effective only by its water faucet hand, replacing the existing water faucet upper part The key-type shared hydrant top that causes a water theft prevention function.

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