JPH0414537Y2 - - Google Patents

Description

[Detailed description of the invention] [Industrial field of application] The present invention relates to the structure of a hot water supply unit such as a wall-mounted water heater installed in the kitchen or a hot water mixer faucet installed in a bathtub. The present invention relates to a hot water supply structure in which a hot water tap is provided at the tip of a pipe.

[Conventional technology]

A conventional hot water supply section structure of this type has been provided with a metal hot water supply pipe. Specifically, in a water heater, the hot water supply pipe is connected to a flexible pipe formed by spirally winding a metal band to the tip of an L-shaped fixed pipe that connects to the water heater body. The hot water supply pipe is configured to change the hot water outlet position by swinging the fixed pipe section and bending the flexible pipe section. It was possible to change the playing position.

[Problem that the invention attempts to solve]

However, when using the conventional hot water supply structure,
The hot water pipes are made of metal and have excellent thermal conductivity, and when hot water is being supplied, the surface of the hot water pipes quickly rises to a temperature close to the hot water supply temperature, and the hot water pipes are exposed, resulting in the following drawbacks: It was hot.

In other words, when changing the hot water outlet position, the hot water supply pipe must be directly operated by hand, and the user may accidentally touch the hot water pipe with his/her hand or arm. When a hand or arm comes into contact with a hot water supply pipe in this manner, if the hot water supply temperature has reached a high temperature due to an erroneous operation or the like, it is likely to cause burns.

In addition, although the surface of hot water supply pipes rarely rusts, the surface darkens over time, giving an unsanitary appearance and making the pipes look unsightly.

The purpose of the present invention is to eliminate such conventional drawbacks.

[Means for solving problems]

The characteristic configuration of the hot water supply section structure according to the present invention is that a cylindrical cover made of resin that is elastically biased in the direction of extension is fitted over the hot water pipe, and the cylindrical cover is contracted in the longitudinal direction. The present invention is provided between the stopper provided at the base end of the hot water supply pipe and the hot water tap, and its functions and effects are as follows.

[Effect]

The cylindrical cover that fits over and covers the hot water pipes is made of resin, which allows you to easily obtain the desired insulation performance by selecting the right material, so even when hot water is being heated, the hot water pipes will only get hot. So, cylindrical cover 3
doesn't get that hot. Moreover, the cylindrical cover has a lot of flexibility in terms of shape and color, and is resistant to deterioration or discoloration depending on the material selected, so the cylindrical cover can only hide dark spots on the surface of the hot water pipe. Instead, various designs can be created by changing the shape and color of the cylindrical cover. Furthermore, when contracted in the longitudinal direction, an elastic stretching force in the longitudinal direction acts on the cylindrical cover provided between the stopper part on the base end side of the hot water supply pipe and the hot water tap, so the cylindrical cover Although the longitudinal dimension tolerance is large, it is possible to hold one end of the cylindrical cover tightly against the hot water tap and the other end against the stopper on the proximal end of the hot water pipe. The cylindrical cover is designed to prevent the cylindrical cover from moving loosely in the longitudinal direction relative to the hot water pipe, without requiring a special closing structure, or from creating gaps that would inadvertently expose the hot water pipe. You can neatly store the edges of the

[Effect of idea]

Therefore, the present invention eliminates the risk of burns and allows for designs with high decorative effects.
It has now become possible to provide a hot water supply structure that can also simplify the structure and assembly work.

In particular, as shown in the examples below, when applied to the structure of the hot water supply section of a water heater, when the flexible pipe section of the hot water supply pipe of this water heater is bent,
Stress acts on the bent portion of the flexible tube and the connection between the flexible tube and the fixed tube, and as time passes, cracks that can cause leaks are likely to occur in the bent and connected portions. If a crack occurs in the connection, the water heater is generally mounted on a wall and the connection is located close to the wall, so water leaking from the crack may drip directly from the connection. , a problem arises when it gets into the gap between the sink and the wall. However, when using the present invention, the cylindrical cover catches the dripping water,
In addition, since the water can be guided down to the hot water outlet position, even if there is a leak in the hot water supply pipe, the leaked water will not drop into the gap between the wall and the sink, etc. It can be discharged from the sink into the sink.

〔Example〕

Next, an example of the present invention will be shown.

As shown in Fig. 2, the structure of the hot water supply part of the water heater attached to the wall beside the sink A is as shown in Fig. 1. At the tip of the pipe 1, a hot water dispenser 2 is attached which can be freely switched between a straight hot water dispensing state in which hot water is dispensed as a single water stream and a shower dispensing state in which hot water is dispensed in a shower flow, and a cylindrical synthetic resin cylindrical part is attached to the hot water supply pipe 1. It is constructed by fitting a cover 3 over it.

The hot water supply pipe 1 is a metal L-shaped pipe that is connected to the lower end of the downward hot water outlet pipe b in the water heater body B via a cap nut 1a as a stopper part so as to be able to swing freely around the vertical axis. Fixed tube part 1A,
It consists of a flexible tube section 1B connected to the tip of this fixed tube section 1A. The flexible tube portion 1B is constructed by spirally winding a metal band.

The hot water tapping device 2 consists of a connection port 2A that connects to the tip of the flexible pipe 1B, and a main body 2B that is screwed onto the connection port 2A. The connection port 2A is a main body that is externally fitted onto the flexible tube 1B and is screwed into the flexible tube 1B in a state where it is prevented from coming off by a water-stop gasket 4 that is fitted and engaged with a circumferential groove 1b formed near the tip of the flexible tube 1B. The receiving pipe part 2a of the flexible pipe part 2B is fitted onto the tip of the flexible pipe part 1B and comes into contact with the water stopper packing 4, and is pulled toward the extraction side and pressed against the water stopper packing 4. Part 1B
It is fixedly attached to the tip of the connected state.

The cylindrical cover 3 is a bellows tube that is elastically expandable and elastically bendable, and follows the bending of the flexible tube portion 1B by its elastic expansion and contraction and elastic bending. Then, by fitting the hot water supply pipe 1 in a compressed state against elasticity, one end is brought into close contact with the end face of the cap nut 1a by the elastic force, and the other end is attached to the end face of the connection port 2A of the hot water tapping device 2. It is configured to cover the entire hot water supply pipe 1 in close contact with the hot water supply pipe 1. That is, the entire cylindrical cover 3 is formed into the bellows portion 3A.

According to the configuration of the embodiment described above, since the hot water supply pipe 1 is covered with the cylindrical cover 3, the position of the hot water tap 2 can be adjusted by swinging the hot water pipe 1 or bending the flexible pipe portion 1B. Since hands and arms do not touch the hot water supply pipe 1 when changing or washing dishes, there is no fear of burns even when hot water is being supplied at a high temperature. Moreover, since the cylindrical cover 3 is made of synthetic resin, it is easy to improve the design in terms of shape and color. Moreover, even when water leaks in the hot water supply pipe 1 due to cracks occurring over time in the connection between the fixed pipe section 1A and the flexible pipe section 1B in the hot water supply pipe 1, for example, The cylindrical cover 3 can catch the leakage water and guide it down to the hot water tap 2 side, so the leakage water can be discharged to the sink A.

[Another example]

Another embodiment of the present invention will be shown below.

[1] The present invention can also be applied to the structure of the hot water supply part of a hot water mixer faucet C installed in a bathroom, as shown in FIG. To be more specific, a metal hot water pipe 1 is connected to a hot water mixer faucet C so as to be able to swing freely around the vertical axis so as to change the hot water outlet position. A hot water tap 2 that produces a mixed water flow is screwed onto the hot water pipe 1, and a cylindrical cover 3 made of synthetic resin with a bellows part 3A is attached to the hot water pipe 1, and a hot water mixing faucet is attached at one end by the force of the bellows part 3A. C, and the other end is fitted into a taper-shaped taper attachment seat 1c at the tip of the hot water supply pipe 1.
The bellows portion 3A is formed on the entire cylindrical cover 3.

[2] The bellows portion 3A is formed locally, not on the entire cylindrical cover 3.

Note that although reference numerals are written in the claims section of the utility model registration for convenience of comparison with the drawings, the present invention is not limited to the structure of the attached drawings by such entry.

[Brief explanation of drawings]

Figures 1 and 2 show embodiments of the present invention;
The figure is a sectional view of the main part, the second figure is a perspective view, and the third figure is a cross-sectional view of the main part.
The figure is a perspective view showing another embodiment of the present invention. DESCRIPTION OF SYMBOLS 1... Hot water supply pipe, 2... Hot water tap, 3... Cylindrical cover, 1a... Stopper part.

Claims (1)

[Scope of utility model registration request] The hot water supply part has a structure in which a hot water outlet device 2 is equipped at the tip of a hot water supply pipe 1, in which a resin cylindrical cover 3 elastically biased in the direction of extension is fitted over the hot water supply pipe 1, and A hot water supply part structure in which a cylindrical cover 3 is provided between a stopper part 1a provided at the base end of the hot water supply pipe 1 and the hot water tap 2 in a state in which the cylindrical cover 3 is contracted in its longitudinal direction.