JPS598138Y2 - Hot water pipe installation device - Google Patents

Description

[Detailed description of the invention] This invention relates to an attachment device for hot water pipes, and its purpose is to ensure that the hot water pipes of showers, bathtubs with hot water heaters, etc. can be reliably attached without coming off even if the pipes are pulled. shall be.

To install a hot water tap in a conventional shower or bathtub with hot water supply device, etc., as shown in FIG. A retaining ring 5 is attached to the recessed notch 4 formed near the lower end of the
The upper end of the sprue (not shown) is screwed onto the male threaded portion 2 of the cylindrical support member 3, and the sprue opens the tap pipe 1 through the sprue.
This was done by pressing the O-ring 6 against the side.

In this case, when the tapping pipe 1 is pulled upward, the retaining ring 5 expands along the R of the notch portion 4, so that there is a problem that the tapping pipe 1 comes out of the cylindrical support member 3.

The present invention addresses these problems and at the same time makes it possible to mount an operating panel.The present invention will be explained below based on drawings showing an example of its implementation.

First, in FIG. 2, reference numeral 11 is a hot water outlet pipe attached to the upper end of the bath pot 12, and the water boiled in the bath pot 12 is transferred to the bathtub 13.
etc., etc.

The mounting portion of the tapping pipe 11 is constructed as shown in FIGS. 3 and 4.

That is, the sprue 15 projects upward from the upper end of the bathtub outer tank 14.
The lower end of the hot water outlet pipe 11 is fitted into the upper end of the hot water outlet pipe 11.
A watertight O-ring 17 is provided in the upper end recess 16 of the sprue 15 to be pressed against the outer surface of the tapping pipe 11 by the inner surface of the recess 16. A retaining shaft 19 is provided which fits into a recessed notch 18 formed nearby, and these O-rings 1
A cylindrical support member 20 that covers the attachment portions of the retaining ring 19 and the retaining ring 19 is provided so as to be fitted onto the outlet pipe 11, and this cylindrical support member 20
A female threaded portion 21 formed on the inner surface of the lower end of the sprue 15 and a male threaded portion 22 formed on the outer surface of the upper end of the sprue 15 are screwed together.

By screwing and tightening the cylindrical support member 20 to the sprue 15, the operation plate 23 is clamped between the lower surface of the cylindrical support member 20 and the upper surface of the bathtub outer tank 14.

By the way, a recess 24 whose inner diameter is almost the same as the outer diameter of the retaining ring 19 and into which the retaining ring 19 is fitted is formed in the portion of the cylindrical support member 20 that faces the retaining ring 19. is fitted into the recessed notch portion 18 of the tapping pipe 11 and cannot expand.

The present invention can be implemented as described above, and the following effects can be obtained.

(1) When the tapping pipe is pulled upward, the retaining ring tries to expand and come out of the recessed notch of the tapping pipe, but
The recessed portion of the cylindrical support member prevents the retaining ring from expanding, and the retaining ring is always kept externally fitted in the recessed notch to prevent the tapping pipe from coming off.

(2) In addition, when the cylindrical support member is loosened and the hot water tap pipe is removed from the bathtub, etc., the cylindrical support member can receive the load by the retaining ring that is fitted onto the recessed notch of the hot water tap pipe, and the retaining ring is As described above, since the concave portion of the cylindrical support member prevents the cylindrical support member from expanding, the cylindrical support member does not come off from the tapping pipe.

(3) The effect of preventing the retaining ring from expanding according to the present invention, that is, preventing the tapping pipe from coming off, can be achieved by forming a recess for fitting the retaining ring in the cylindrical support member, and by attaching another part, it is possible to prevent the tapping pipe from coming off. Since this method does not lead to high costs, it is possible to obtain excellent effects at low cost.

(4) By tightening the cylindrical support member, the operation plate can be clamped between the lower surface of the support member and the upper surface of an outer tank such as a bathtub, and thereby the lower surface of the cylindrical support member and the upper surface of the operation plate can be clamped. If there is a gap between the two or between the upper surface of the outer tank of the bathtub and the lower surface of the operation plate, it can be seen at a glance that the set state is not complete.

(5) Since a water-tight O-ring is provided which is pressed into contact with the outer surface of the tap pipe on the inner surface of the annular recess at the upper end of the sprue, a sufficient water-tight structure and tap water can be achieved without depending on the tightening force of the cylindrical support member to the sprue. It is possible to rotate the sprue with a constant torque relative to the sprue.

[Brief explanation of the drawing]

Fig. 1 is a vertical sectional view showing the main parts of a conventional example, Fig. 2 is a perspective view showing an example of implementation of the present invention, Fig. 3 is an enlarged longitudinal sectional view of the main parts of Fig. 2, and Fig. 4 is a longitudinal sectional view showing the main parts of the conventional example. FIG. 3 is a view taken along the XX arrow in FIG. 3; 11... Hot water pipe, 12... Bath pot, 1
3... Bathtub, 14... Bathtub outer tank, 1
5... Sprue, 16... Upper end recess, 17
...O ring, 18 ... Recessed notch portion, 19 ... Retaining ring, 20 ... Cylindrical support member, 21 ... Female threaded portion, 22...Male threaded portion, 23...Operation plate, 24...Recessed portion.

Claims (1)

[Scope of utility model registration request] A retaining ring is fitted onto a recessed notch formed on the outer surface near one end of the hot water tap, and is inserted into the hot water tap and screwed onto a sprue of a bath pot or the like, so that the one end of the hot water tap is connected to the sprue. A retaining ring expansion prevention recess into which the retaining ring is inserted is provided in a part of the inner circumferential surface of the cylindrical support member to be connected, so that the retaining ring is rotatably supported with respect to the sprue; The upper end is provided with an annular recess that presses the watertight O-ring with its inner surface so that the water-tight O-ring comes into contact with the outer surface of the tapping pipe. A hot water outlet pipe mounting device characterized in that an operation plate is clamped between a shaped support member and an outer tank of a bathtub or the like.