JPH065588U - Shower device - Google Patents

Abstract

(57) [Abstract] [Purpose] To prevent breakage and disconnection of the hose in shower equipment equipped with a flow rate adjustment mechanism in the shower head itself, and to obtain stable shower water sprinkling without fluctuation in flow rate or temperature. . [Composition] In a shower device in which a hose is connected to a supply side of water or a mixture of hot water and a water, and a shower head at the tip of the hose is provided with a flow rate adjusting mechanism, water heading toward the shower head side is provided at a base end of the hose. Alternatively, a pressure reducing valve for reducing the pressure of the mixed water is provided. The water or mixed water from the supply side is decompressed by the decompression valve, and even when the flow rate adjusting mechanism of the shower head is used to throttle the flow path, the rise in the internal pressure of the hose is suppressed and damage to the hose is prevented.

Description

[Detailed description of the device]

[0001]

[Industrial applications]

 The present invention relates to a shower provided in a bathroom or the like, and more particularly to a shower device for preventing damage to a hose connected to the shower in equipment having a flow rate adjusting function in a shower head.

[0002]

[Prior art]

 The most common type of shower equipment installed in a bathroom is, for example, a hose connected to a hot and cold water mixing tap that is also used to supply hot water to a bathtub, and a shower head is provided at the end of this hose. In such a shower facility, when taking a shower, the valve on the hot and cold water mixing tap side is switched to the shower side and the flow rate is adjusted and used at the same time.

However, when a person stands up and takes a shower, in order to change the strength of the shower, a hot and cold water mixing tap is generally installed according to the level of the bathtub. You will be handling the handle of the stopper. Since such an operation is troublesome, the shower head itself has a flow rate adjusting function as described in, for example, Japanese Utility Model Laid-Open No. 56-106852 and Japanese Utility Model Laid-Open No. 55-163058. Is proposed.

The flow rate adjusting function of the former is to arrange two plates each having a plurality of holes in a flow path in the shower head toward the water spray plate, and rotate one of the plates by an external operation. Therefore, the flow rate is adjusted by changing the degree of matching between the holes. In the latter case, a rotary valve is incorporated in the internal flow path of the shower head, and the flow rate is made variable by rotating this valve from the outside.

In any case, since the shower head itself has a flow rate adjusting function, it is possible to easily take a shower without handling the operation handle on the hot and cold water mixing tap side.

[0006]

[Problems to be solved by the device]

 However, if the flow rate control valve of the shower head restricts the flow path, the load of water pressure on the hose connecting the hot and cold water mixing tap and the shower head increases. This load is proportional to the throttling degree of the flow path on the showerhead side, provided that the supply pressure of hot water and hot water is constant.

When the hydraulic load acts on the hose in this manner, the material of the elastic material is deteriorated, and the possibility of breaking due to fatigue increases. In addition, the connection part between the hose and the hot and cold water mixing tap or between the hose and the shower head may become loose and the hose may come off.

Further, if the flow rate on the shower head side is adjusted, the water pressure on the hot and cold water mixing tap side fluctuates due to the restriction of the flow path. That is, when the water supply or hot water supply pressure from the building side is kept almost constant, the water pressure on the hot and cold water mixing tap side increases as the flow path throttle on the shower head side increases.

As described above, when the water pressure in the internal flow passage of the hot and cold water mixing tap changes at every flow rate adjustment on the shower head side, the mixing ratio of hot water and water also changes, and as a result, The temperature and flow rate of hot water from the shower head will also be unstable. Even when using a single faucet, it is inevitable that the flow rate will fluctuate. Therefore, providing the shower head with a flow rate adjusting function has an advantage in terms of ease of use, but may also cause flow rate and temperature fluctuations.

The problem to be solved in the present invention is to prevent breakage and disconnection of the hose and to obtain stable shower water sprinkling without fluctuation in flow rate and temperature.

[0011]

[Means for Solving the Problems]

 The present invention is a shower device, which is connected to a supply side of water or a mixture of hot water and water by a hose, has a shower head at the tip of the hose, and has a flow rate adjusting mechanism at the shower head. A pressure reducing valve is provided between the base end of the hose and the supply side to reduce the pressure of water or mixed water flowing toward the shower head.

[0012]

[Action]

 Water or mixed water from the supply side is decompressed by the pressure reducing valve and supplied to the hose side, so even when the flow rate adjusting mechanism of the shower head is used to throttle the flow passage, the rise in the internal pressure of the hose is suppressed. . Therefore, it is possible to prevent loosening and disconnection of the connection between the hose and the shower head and the faucet such as the hot and cold water mixing tap on the supply side, and it is also possible to prevent damage to the hose itself.

Further, even if the flow rate adjusting mechanism of the shower head is frequently operated, the pressure reducing valve reduces the degree to which the pressure fluctuation in the hose is propagated to the supply side. Therefore, if there is a fluctuation in the flow rate on the supply side or a mixing tap for hot and cold water, there is no fluctuation in the mixing ratio of hot water and water, and stable water flow and temperature can be maintained.

[0014]

【Example】

 1A and 1B are views showing an outline of a shower device according to the present invention. FIG. 1A is a front view and FIG. 1B is a left side view.

In the figure, as in the case of the conventional equipment, a shower head 3 is connected to the end of a hose 2 connected to a hot and cold water mixing tap 1, and a water discharge pipe 1 a of the hot and cold water mixing tap 1 and a flow path between the shower head 3 side A switching handle 1b for switching between is provided on the front surface of the hot and cold water mixing valve 1. The hot and cold water mixing tap 1 is fixed by connecting the leg pipes 1c and 1d for water and hot water to the water supply and hot water supply pipes on the building side, and changes the mixing ratio of hot water and water at the right end. The temperature setting handle 1e is provided.

FIG. 2 is a central longitudinal sectional view of the hot and cold water mixing valve 1.

A switching valve 1f for switching the flow path to the water discharge pipe 1a side and the hose 2 side is provided inside the hot and cold water mixing valve 1 and can be operated by a switching handle 1b. An elbow-shaped joint 4 connected to the back of the hot and cold water mixing tap 1 is connected to the flow path to the hose 2 side, and a pressure reducing valve 5 is assembled between the lower end of this joint 4 and the base end of the hose 2. Put in.

On the other hand, the shower head 3 is provided with a mechanism for receiving water supply from the hose 2 and adjusting the flow rate of the water, as in the case of the conventional example. Although various types of flow rate adjusting mechanisms can be adopted, for example, as shown in FIG. 3, a rotary throttle valve 3a that traverses the internal flow path of the shower head 3 is incorporated, and this throttle valve 3a is installed on the side surface of the shower head 3. It can be configured to be connected to the adjusting handle 3b provided so as to project from the. In this case, by turning the adjusting handle 3b, the flow passage can be set from the fully opened state to the narrowed state of (b) of FIG. 3 as shown in (a) of FIG. Can be adjusted.

FIG. 4 is an enlarged vertical sectional view showing details of the pressure reducing valve 5.

This pressure reducing valve 5 can be used for various kinds of water supply pipes and equipment around water, and the housing 5a has an inflow passage 5b connected to the hot and cold water mixing tap 1 and an outflow passage 5c connected to the hose 2. It was formed. A needle-type valve body 5d is movably incorporated in the housing 5a in the axial direction thereof, and a valve seat 5e is formed in the internal flow path in which a taper portion 5d-1 of the valve body 5d comes in contact with and separates from the valve seat 5e. The valve body 5d is connected at one end to a fixing metal fitting 5g which is integrated with a diaphragm 5f, and the fixing metal fitting 5g is attached to the left side in the figure by a spring 5h in a chamber partitioned from the internal flow passage by the diaphragm 5f. It is energized.

In the pressure reducing valve 5 having such an internal structure, the biasing force of the spring 5h causes the tapered portion 5d-1 formed in the middle of the valve body 5d to separate from the valve seat 5e and open the flow path. . When water flows from the inflow path 5b to the outflow path 5c, the diaphragm 5f receives the water pressure in the secondary side flow path downstream of the valve seat 5e, and if this water pressure is lower than a certain set pressure, as described above. The valve body 5d is set to the open position by the spring 5h. If the water pressure in the secondary flow path rises and approaches the set pressure, the diaphragm 5f is pushed by the water pressure on the secondary side, and if this pushing force exceeds the biasing force of the spring 5h, the diaphragm 5f will appear in the figure. Transforms to the right. Therefore, the tapered portion 5d-1 of the valve body 5d approaches the valve seat 5e and the flow passage is narrowed, the flow rate of the passage is reduced, and the rise of the water pressure in the secondary side flow passage can be suppressed.

In the above structure, when the switching handle 1b opens the flow path to the hose 2 side, the mixed water of hot water and water is sprayed from the shower head 3 via the pressure reducing valve 5 and the hose 2. At the time of this sprinkling, even if the flow path area of the fully opened flow path of FIG. 3A is greatly reduced by the adjustment handle 3b as shown in FIG. Since the supply pressure is suppressed, the increase in the internal pressure of the hose 2 is also suppressed. Therefore, it is possible to prevent the hose 2 from being damaged when the flow rate is reduced on the side of the shower head 3 as in the conventional case, and the disconnection between the joint 4 and the shower head 3.

Further, even if the flow path is greatly throttled on the shower head 3 side, the pressure of the mixed water from the pressure reducing valve 5 to the shower head 3 side is kept low, and the pressure itself is also reduced by the pressure reducing valve 5. Therefore, it is difficult to propagate to the hot and cold water mixing tap 1 side. Therefore, even if the flow passage area is frequently changed by the throttle valve 3a, the transmission of the pressure fluctuation to the hot and cold water mixing valve 1 side can be ignored. Therefore, the pressure fluctuation inside the hot and cold water mixing tap 1 is suppressed, and it becomes possible to spray the water at a constant flow rate while keeping the mixing ratio of the hot water and the water at the set value.

In the embodiment, the hose 2 is connected to the hot and cold water mixing tap 1, but a single water tap may be used instead of the hot and cold water mixing tap 1, and the hose 2 is directly connected to a water heater or the like. Good too. In any case, the only point is that the pressure reducing valve 5 is provided on the base end side of the hose 2.

[0025]

[Effect of device]

 In the present invention, since the pressure reducing valve is provided at the base end of the hose toward the shower head, the internal pressure of the hose does not rise even if the flow rate is reduced on the shower head side. Therefore, it is possible to prevent damage to the hose and disconnection from the piping members and faucets connected to it. Even if the flow rate is frequently adjusted on the shower head side, pressure fluctuations are not transmitted to the supply side such as the hot and cold water mixing taps, and stable water sprinkling with no fluctuations in temperature or flow rate is maintained, improving usability. .

[Brief description of drawings]

FIG. 1 is a diagram showing an outline of shower equipment, in which (a) is a plan view thereof and (b) is a left side view thereof.

FIG. 2 is a central longitudinal sectional view of a hot and cold water mixing valve.

FIG. 3 is a schematic cross-sectional view showing the movement of a rotary throttle valve for adjusting the flow rate provided in the shower head.

FIG. 4 is an enlarged vertical sectional view showing the internal structure of the pressure reducing valve.

[Explanation of symbols]

 1 Hot and cold water mixing tap 2 Hose 3 Shower head 3a Throttle valve 3b Adjustment handle 5 Pressure reducing valve

Claims (1)

[Scope of utility model registration request] 1. A shower device comprising a hose connected to a supply side of water or a mixed water of hot water and water, a shower head provided at a tip of the hose, and a flow rate adjusting mechanism provided in the shower head. A shower device comprising a pressure reducing valve between the base end portion of the hose and the supply side for reducing the pressure of water or mixed water flowing toward the shower head side.