JPH0614653U - Hot water supply device - Google Patents

Abstract

(57) [Summary] [Purpose] The water tap should be opened earlier than the hot water tap to eliminate the risk of hot water being discharged. [Structure] The hot water supply tap 6 provided in the middle of the hot water supply pipe and the water supply tap 23 provided in the middle of the water supply pipe are brought close to each other, and
The valve shaft 25A of the water tap 23 is largely projected from the valve body 7 of the water tap 23, and the hot water supply handle 10 is arranged so that the water supply handle 24 overlaps. Further, the lower end of the valve shaft 25A of the water tap 23 has the operating portion 10A of the hot water supply handle 10.
A stopper 26 that regulates the hot water supply handle 10 so that it cannot be opened until it contacts the water tap 23 and the water tap 23 is opened.
To provide. Since the stopper 26 of the hot water supply handle 10 contacts the operating portion 10A, it is possible to prevent an accident of opening the hot water tap 6 before the water tap 23.

Description

[Detailed description of the device]

[0001]

[Industrial applications]

 The present invention relates to a hot water supply device for supplying hot water by mixing hot water supplied from a hot water supply source such as a boiler and cold water supplied from a water supply source such as a tap water, and particularly, when the hot water is supplied, the hot water tap is a water tap. The present invention relates to a hot water supply device capable of preventing a valve opening operation from occurring earlier.

[0002]

[Prior art]

 5 and 6 show a hot water supply device according to the prior art.

In the figure, reference numeral 1 denotes a hot water supply pipe, and one end of the hot water supply pipe 1 is connected to a hot water supply source A such as a boiler and the other end is connected to a hot water tap 6 described later, and the pipe 2. Is connected to another pipe 3 via a hot water tap 6 and a pipe 5 connected to the other end side of the pipe 3 via an elbow 4, and the other end side of the pipe 5 will be described later. It is connected to the hot water supply pipe 17.

Reference numeral 6 denotes a hot water tap, 7 denotes a valve main body which constitutes a casing of the hot water tap 6, the valve main body 7 has a substantially spherical shape as shown in FIG. 6, and one end side of the valve main body 7 is provided. An inflow port 7A having a flange portion 7A1 and an outflow port 7B having a flange portion 7B1 are formed on the other end side of the valve body 7 so as to project therefrom. A partition wall 7C is provided in the valve body 7 for partitioning the inlet 7A side and the outlet 7B side in the vertical direction in FIG. 6, and an annular valve seat is provided at the center of the partition 7C. The portion 7D is formed. On the upper side of the valve body 7, a cylindrical valve shaft support portion 7E is formed so as to face the valve seat portion 7D and project outward.

Reference numeral 8 denotes a stepped cylindrical lid body fixed in the valve shaft support portion 7E, and a screw hole 8A is formed in the lid body 8 in the axial direction, and the screw hole 8A will be described later. The valve shaft 9A is screwed.

Reference numeral 9 denotes a valve body, and the valve body 9 is fixed to a valve shaft 9A screwed into the valve body 7 through a screw hole 8A of the lid 8 and a tip of the valve shaft 9A. It is composed of a disc-shaped valve portion 9B that is seated on and off the valve seat portion 7D. On the outer peripheral surface of the valve shaft 9A, a male screw portion 9C screwed into the screw hole 8A and a hot water supply handle 10 described later are fitted. The knurled portion 9D is formed.

Reference numeral 10 denotes a hot water supply handle. The hot water supply handle 10 is an annular operation portion 10A, and a boss that is provided at the center of the operation portion 10A in the radial direction and has a mounting hole 10B1 formed in the axial direction. It is composed of a portion 10B and four connecting rods 10C, 10C, ... Which extend from the outside of the boss portion 10B toward the inside of the operation portion 10A and connect the operation portion 10A and the boss portion 10B. Here, the hot water supply handle 10 is fixed to the valve shaft 9A by fitting the knurled portion 9D of the valve shaft 9A into the mounting hole 10B1 of the boss portion 10B and tightening the screw 11 from the upper end side of the valve shaft 9A. ing.

Next, reference numeral 12 denotes a water supply pipe. One end of the water supply pipe 12 is connected to a water supply source B such as a water pipe, and a pipe 13 is connected to the pipe 13 through a water supply plug 15 described later. The other end of the pipe 14 is connected to the hot water supply pipe 17.

Reference numeral 15 denotes a water tap, which has a valve body (not shown) similar to the hot water tap 6 such as a valve body 7, a lid body 8 and the valve body 9. A water supply handle 16 is provided on the water supply stopper 15. Here, like the hot water supply handle 10, the water supply handle 16 includes an annular operation portion 13A, a boss portion 16B having mounting holes, and four connecting rods 16C, 16C ,. There is.

Reference numeral 17 denotes a hot water supply pipe, which is composed of a T-shaped pipe 18 and a discharge pipe 19. The T-shaped pipe 18 has a tubular connecting portion 18A protruding to the side surface and upper and lower portions. It has connection parts 18B and 18C. The connecting portion 18A of the T-shaped pipe 18 is connected to the other end of the pipe 5 constituting the hot water supply pipe 1, and the connecting portions 18B and 18C of the T-shaped pipe 18 are connected to the pipe 14 constituting the water supply pipe 12. The other end side and one end side of the discharge pipe 19 are connected.

The hot water supply device according to the prior art has the configuration described above. To supply hot water by the hot water supply device, heat from the hot water supply pipe 1 flowing into the connecting portion 18 A of the T-shaped pipe 18 is used. The water and the tap water from the water supply pipe 12 flowing into the connecting portion 18B are merged and mixed in the T-shaped pipe 18 to be warm water of an appropriate temperature and discharged from the discharge pipe 19.

Here, in order to introduce hot water from the hot water supply pipe 1 to the T-shaped pipe 18, the hot water supply handle 10 is rotated in the forward direction to rotate the valve shaft 9 A from the outside of the valve body 7, The shaft 9A is raised in the screw hole 8A of the lid body 8. Then, the valve portion 9D is separated from the valve seat portion 7D of the valve body 7, and the inlet 7A side and the outlet 7B side are communicated with each other, so that the hot water tap 6 is opened and hot water is supplied from one end side of the pipe 2. It flows through the pipe 1 and flows into the connecting portion 18A of the T-shaped pipe 18.

Further, in order to guide the tap water from the water supply pipe 12 to the T-shaped pipe 18, as in the case of the hot water tap 6 described above, the water feed handle 16 is rotated in the forward direction to open the water tap 15. , The one end side of the pipe 13 and the connecting portion 18B side of the T-shaped pipe 18 are communicated with each other.

[0014]

[Problems to be solved by the device]

 By the way, in the above-described hot water supply device according to the conventional technique, the tap water 15 is opened before the hot water tap 6 to guide the tap water having a low temperature into the hot water supply pipe 17 in advance, and The tap water from the water supply pipe 12 and the hot water from the hot water supply pipe 1 are mixed to prevent hot water from being discharged from the discharge pipe 19.

However, in the hot water supply device according to the related art, the hot water tap 6 may be opened earlier than the water tap 15 due to an operator's erroneous operation, and in such a case, high temperature heat from the discharge pipe 19 may be generated. There is a risk that the water will be discharged and the worker will be burned, and it is difficult to ensure safety.

The present invention has been made in view of the above-mentioned problems of the prior art. The present invention can restrict the hot-water tap from being operated to open before the hot-water tap, and hot water from the hot-water supply pipe can be prevented. It is an object of the present invention to provide a hot water supply device capable of preventing discharge and improving safety.

[0017]

[Means for Solving the Problems]

 The feature of the configuration adopted by the present invention to solve the above-mentioned problems is that the hot water supply pipe and the water supply pipe are arranged close to each other so that the water supply handle of the water supply tap overlaps the hot water supply handle of the water supply tap. However, the water tap is provided with a stopper that restricts the opening operation of the hot water supply handle until the opening operation of the water supply handle.

[0018]

[Action]

 With the above configuration, it is possible to prevent the hot water tap from being opened by mistake unless the water tap is opened first, and the tap water or the like having a low temperature is introduced into the hot water supply pipe before it is introduced. Hot water can be introduced into.

[0019]

【Example】

 Hereinafter, an embodiment of the present invention will be described in detail with reference to FIGS. In the embodiments, the same components as those of the above-described conventional technique are designated by the same reference numerals, and the description thereof will be omitted.

In the drawing, reference numeral 21 denotes a hot water supply pipe, and the hot water supply pipe 21 is composed of pipes 2, 3, an elbow 4, and a pipe 22 in substantially the same manner as the hot water supply pipe 1 described in the prior art. The pipe 22 of the pipe 21 is formed to be shorter than the pipe 5 according to the prior art, and the other end of the pipe 22 is connected to the connecting portion 18A of the T-shaped pipe 18. As a result, the hot water supply pipe 21 approaches the water supply pipe 12, and the hot water supply tap 6 is arranged adjacent to a water supply tap 23 described later as shown in FIG.

Reference numeral 23 denotes a water tap provided in the middle of the water supply pipe 12. The water tap 23 is similar to the water tap 15 described in the related art, and the valve body 7, the lid body 8, the water feed handle 24, and Although composed of the valve body 25 and the like, the water tap 23 has a valve shaft 25A which is longer than the valve shaft 9A of the valve body 9 described in the prior art. A disc-shaped valve portion 25B is fixed to the tip end side of the valve shaft 25A, and a male screw portion 25C and a knurl portion 25D are formed on the outer peripheral surface of the valve shaft 25A. Further, although the water supply handle 24 is composed of the operation portion 24A, the boss portion 24B having the mounting hole 24B1 and each connecting rod 24C like the water supply handle 16 described in the prior art, the water supply handle 24 is operated. As shown in FIG. 3, the portion 24A and the like are arranged so as to overlap the operation portion 10A of the hot water supply handle 10 from above.

Reference numeral 26 denotes a stopper which is located between the lid body 8 of the water tap 23 and the water supply handle 24 and fixed to the outside of the valve shaft 25 A. The stopper 26 is shown in FIG. 3 by, for example, an elastic plastic material. As shown, it has a cylindrical large-diameter portion 26A and a reduced-diameter portion 26B that extends upward from the large-diameter portion 26A while decreasing the outer diameter dimension. A mounting hole 26C is formed in the. The stopper 26 is attached to the valve shaft 25A through an attachment hole 26C so that the upper end of the reduced diameter portion 26B contacts the lower surface of the boss portion 24B of the water supply handle 24. When both the hot water tap 6 and the hot water tap 23 are closed, the lower end of the stopper 26 abuts the hot water supply handle 10 of the adjacent hot water tap 6 from the upper side of the operating portion 10A, as shown in FIG. It is designed to prevent the hot water tap 6 from being opened by mistake by rotating the handle 10. Further, the reduced diameter portion 26B of the stopper 26 forms a relatively large annular gap below the operating portion 24A of the water supply handle 24 to facilitate opening and closing of the operating portion 24A.

The hot water supply device according to the present embodiment has the above-mentioned configuration, and its basic operation is not significantly different from that of the prior art.

However, in the present embodiment, the pipe 22 of the hot water supply pipe 21 is formed in a short length to bring the hot water supply pipe 21 and the water supply pipe 12 close to each other, and the valve shaft 25A of the water supply tap 23 is connected to the valve shaft 9A of the hot water supply plug 6. The water supply handle 24 is disposed on the hot water supply handle 10 so that the water supply handle 24 overlaps the valve body 7 by making the lower end of the valve shaft 25A of the water supply tap 23 contact the operating portion 10A of the hot water supply handle 10. Since the stopper 26 that restricts the hot water supply handle 10 from being opened cannot be provided until the water tap 23 is opened and the contact is made, the following effects are achieved.

That is, when both the hot water tap 6 and the water tap 23 are closed, as shown in FIG. 3, the hot water supply handle 10 of the hot water tap 6 has a stopper provided on the water tap 23 at the upper end of the operating portion 10A. Since the lower end of the pad 26 comes into contact, the water supply handle 24 of the water tap 23 is rotated in the forward direction to open the valve first, and the stopper 26 provided on the valve shaft 25A is moved together with the valve shaft 25A in the direction of the arrow shown in FIG. The valve opening operation by the hot water supply handle 10 of the hot water supply tap 6 can be continuously prohibited unless the temperature is raised.

Therefore, according to the present embodiment, in order to supply the hot water from the discharge pipe 19, it is necessary to open the water tap 23 before the hot water tap 6, so that the water tap 23 is erroneously operated more than the water tap 23. It is possible to effectively prevent the accident that hot hot water is discharged from the discharge pipe 19 by opening the hot water tap 6 first.

Further, even after once opening the water tap 23, it is impossible to rotate the hot water supply handle 10 beyond the movement amount of the stopper 26 to open the hot water tap 6 excessively (see FIG. 4). Therefore, it is possible to prevent the temperature of the hot water discharged from the discharge pipe 19 from rising dangerously.

Further, even when both the hot water tap 6 and the hot water tap 23 are closed and the supply of hot water from the hot water supply pipe 17 is terminated, the hot water supply handle 10 is first rotated in the opposite direction to turn the hot water tap 6 on. Unless the valve is closed, the stopper 26 can prevent the water supply handle 24 of the water supply plug 23 from rotating in the reverse direction. Therefore, there is a risk that the temperature of the hot water will rise rapidly even when the supply of the hot water is stopped. It can be lost.

In the above embodiment, the stopper 26 is provided with the reduced diameter portion 26B. However, the present invention is not limited to this, and the stopper is not limited as long as it has a shape capable of restricting an erroneous operation of the hot water supply handle 10. Of course, the stopper may be formed in various shapes such as a cylindrical shape having a mounting hole in the axial direction.

Further, in the above-described embodiment, the description has been made assuming that the other end side of the water supply pipe 12 and the other end side of the hot water supply pipe 21 are connected via the T-shaped pipe 18, but instead of the T-shaped pipe 18. It is also possible to use a pipe connecting member called an ejector.

[0031]

[Effect of device]

 As described in detail above, according to the present invention, the hot water supply pipe and the water supply pipe are arranged close to each other so that the water supply handle of the water supply tap overlaps the hot water supply handle of the water supply tap, and the water supply tap is Since a stopper was provided to control the opening operation of the hot water supply handle until the water supply handle was opened, it is possible to prevent accidental opening of the hot water supply tap unless the water supply tap is always opened first. It is possible to introduce tap water or the like having a low temperature into the hot water supply pipe and then introduce hot water into the hot water supply pipe.

Therefore, it is possible to effectively prevent the hot water from being discharged from the hot water supply pipe by opening the hot water tap before opening the hot water tap, thereby improving work safety. it can.

Also, when both the hot water tap and the water tap are closed and the supply of hot water from the hot water supply pipe is terminated, the hot water supply handle is first rotated in the reverse direction to close the hot water tap. If this is not done, it will be possible to prevent the water supply handle of the water faucet from closing the valve, eliminating the risk of the temperature of the hot water rising when the supply of hot water is stopped.

[Brief description of drawings]

FIG. 1 is a front view showing a hot water supply device according to an embodiment of the present invention.

FIG. 2 is a left side view of the hot water supply device shown in FIG.

FIG. 3 is an enlarged sectional view taken along the line III-III in FIG.

FIG. 4 is an enlarged cross-sectional view similar to FIG. 3, showing a state where the water tap is opened.

FIG. 5 is a front view showing a hot water supply device according to a conventional technique.

FIG. 6 is an enlarged sectional view taken along the line VI-VI in FIG.

[Explanation of symbols]

 6 Hot Water Tap 10 Hot Water Supply Handle 12 Water Supply Pipe 17 Hot Water Supply Pipe 21 Hot Water Supply Pipe 23 Water Supply Plug 24 Water Supply Handle 26 Stopper A Hot Water Supply Source B Water Supply Source

Claims (1)

[Scope of utility model registration request] 1. A hot water supply pipe having one end side connected to a hot water supply source and the other end side connected to a hot water supply pipe, and a valve provided in the middle of the hot water supply pipe and opened and closed by rotating a hot water supply handle from the outside. Hot water tap and one end is connected to the water supply source,
The water tap has a water supply pipe having the other end connected to the hot water supply pipe, and a water tap provided in the middle of the water pipe and opened and closed by rotating the water supply handle from the outside. In a hot water supply device configured to join hot water from the hot water supply pipe and water from the water supply pipe in the hot water supply pipe to supply hot water when the hot water supply tap is opened.
The hot water supply pipe and the water supply pipe are arranged close to each other so that the water supply handle of the water supply tap overlaps the hot water supply handle of the hot water supply tap, and the water supply pipe is opened until the water supply handle is opened. Is a hot water supply device, wherein a stopper for restricting the valve opening operation of the hot water supply handle is provided.