JPH0631992Y2 - Shower device - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION [Industrial field of use] The present invention relates to a shower device that vertically reciprocates a shower nozzle unit, and more particularly to a technique for smoothly moving up and down the shower nozzle unit for a long period of time.

[Prior Art] Recently, the shower device has been recognized as a simple bathing means because it is easy to prepare for bathing, saves water, and saves energy. On the other hand, social needs for health promotion have increased, and attention has been paid to the effects of skin irritation and thermal irritation by the spray pressure of the shower. In other words, it has been confirmed that it is effective for relaxing the mind and body, recovering from fatigue, and beauty by increasing the blood flow by stimulating a hot bath and activating various functions such as the circulatory system, respiratory system and autonomic nervous system. Has been.

In order to increase these effects, it is important to change the hot water temperature and water pressure of the jet water so that the stimulating effect of the jet water is maintained as long as possible. For that purpose, an attempt has been made to move the shower head up and down reciprocally so that the jetted water does not hit the same position on the body as much as possible. As a conventional example, a drive system using a hydraulic cylinder has been adopted.

In this type of system, as shown in FIG. 5 (a), the direction of the water flow sent into the hydraulic cylinder 1'is controlled by the directional control valve 3
The switching is performed by passing through 0 ', and the vertical reciprocating movement is continuously performed. That is, the shower nozzle portion 6'is driven up and down by fixing the slider 5'to the wire 4'connected to the piston 2'in the hydraulic cylinder 1'and attaching the shower nozzle portion 6'to this slider 5 '. .

[Problems to be Solved by the Invention] In the conventional example as described above, the air in the lower chamber 15 'of the hydraulic cylinder 1'below the piston 2'does not escape, and the piston 2'is Move up and down. For this reason,
While the piston 2'is moved up and down, the air is compressed, but when the piston 2'is turned upside down, that is, when the water channel is switched, the water pressure is momentarily weakened. The state as described above is repeated. In this case, since the piston 2 ′ operates after the air is compressed, a time delay occurs during the compression of the air, the slider 5 ′ is not instantaneously inverted, and the slider 5 ′ is temporarily stopped so that the vertical ascending / descending operation is smooth. There was a problem of lacking.

Further, in the conventional case, there is a problem that the hydraulic cylinder 1 ′ and the cap 40 ′ of the hydraulic cylinder 1 ′ are damaged due to freezing and expansion of water inside the hydraulic cylinder 1 ′ at low temperatures such as winter.

The present invention has been made in view of such problems,
It is an object of the present invention to provide a shower device that performs a smooth reversing operation and is not damaged by freezing of water.

[Means for Solving the Problems] A shower device according to the present invention is a shower device that vertically reciprocates a shower nozzle portion 6 by using a hydraulic cylinder 1, in which a piston 2 in a hydraulic cylinder 1 is attached to a hydraulic cylinder 1.
The upper chamber 11 and the lower chamber 15 are provided with a small hole 2a penetrating therethrough so as to open.

At the lower end of the hydraulic cylinder 1, a low temperature operation valve 5 for freeze prevention is provided.
It is also possible to set 0.

[Operation] Then, the piston 2 is provided with a small hole 2a for communicating the upper chamber 11 and the lower chamber 15 of the hydraulic cylinder 1, and when driving, air in the lower chamber 15 is evacuated by using this small hole 2a.
Slider 5 no longer pauses when flipped.

Further, since the freezing prevention low temperature actuating valve 50 for draining the water in the hydraulic cylinder 1 at low temperature is provided at the lower end of the hydraulic cylinder 1, when the antifreezing low temperature actuating valve 50 opens at low temperature, the inside of the hydraulic cylinder 1 The water is drained to prevent the water from freezing. In this case, the water in the upper chamber 11 is also drained to the lower chamber 15 using the small hole 2a, and the low temperature operation valve 5 for freeze prevention is further used.
It is possible to drain all the water in the hydraulic cylinder 1 by zero.

[Embodiment] An embodiment of the present invention will be described in detail below with reference to the accompanying drawings.

As shown in FIG. 1 (a), the shower device has a vertical hydraulic cylinder 1 in which a piston 2 is vertically movable, and a wire 4 wound around wire pulleys 3 and 3 is connected to the piston 2 The slider 5 is connected to the wire 4, and the shower nozzle 6 is fixed to the center of the slider 5. The piston 2 in the hydraulic cylinder 1 is provided with a small hole 2a penetrating the upper chamber 11 and the lower chamber 15 of the hydraulic cylinder 1 so as to open. The hydraulic cylinder 1 and the wire 4 that reciprocally drive the shower nozzle unit 6
In addition, a drive mechanism section composed of various members such as a reversing mechanism section 7a described later is covered with a casing 8 as shown in FIG. 1 (c), and a long slit 9 is formed in the central portion of the casing 8. Has been formed. As shown in FIG. 3, a pair of guide rails 10 are disposed vertically in the casing 8 so as to face each other along the slits 9 as opposed to each other. Guide rail 10
A slider 5 is slidably provided on the slider 5, and a shower nozzle portion 6 provided in the central portion of the slider 5 faces a slit 9 as shown in FIG. 1 (c). Reference numeral 22 in the figure denotes a hose for supplying water and hot water to the shower nozzle section 6.

Then, as shown in FIG. 1 (a), the driving water is supplied to the four-way valve 7
After passing through b, enter the upper chamber 11 of the hydraulic cylinder 1,
The piston 2 is pushed down to lower the lower chamber 15 of the hydraulic cylinder 1.
This water is drained through the four-way valve 7b. By such a downward movement of the piston 2, the shower nozzle portion 6 is raised via the wire 4 and the slider 5. When the shower nozzle portion 6 reaches the upper limit position, the height adjusting clamp 13 above the reversing mechanism is kicked, and the slide rod 14 to which the height adjusting clamp 13 is integrally attached is pushed up to lift the four-way valve 7.
By switching the four-way valve 7b, the driving water enters the lower chamber 15 of the hydraulic cylinder 1, pushes up the piston 2, lowers the shower nozzle portion 6 via the wire 4 and the slider 5, and then the upper chamber 11 The water inside is drained through the four-way valve 7b. When the shower nozzle portion 6 is lowered to the lower limit position, the lower height adjusting clamp 16 is kicked, the slide rod 14 is lowered, the four-way valve 7b is switched, the initial state is restored, and the shower nozzle portion 6 is again moved. Raise it. After that, such an operation is repeated.

As shown in FIG. 3 (b), the shower nozzle portion 6 is located at the center of the casing 8 and the guide rails 10 are arranged on both sides of the shower nozzle portion 6 in the horizontal sectional state.
The slider 5 integrated with the shower nozzle portion 6 is slidably inserted into the guide rail 10. The wire 4 is fastened to the slider 5. As shown in FIG. 2, caps 40 each having a joint 39 for guiding water to the four-way valve 7b are inserted at both upper and lower ends of the hydraulic cylinder 1. The joint 39 at the lower end of the hydraulic cylinder 1 is branched in two directions, one of which is connected to the four-way valve 7b and the other of which is connected to a low temperature actuating valve 50 for preventing freezing, which opens when the temperature is low and discharges water. As an example of such a low temperature actuating valve 50 for freeze prevention, as shown in FIG. 4, when the thermoelement senses the atmospheric temperature and approaches a temperature at which there is a risk of freezing, the piston portion 51 incorporating the thermoelement is used. A low-temperature operating valve that contracts, the valve 53 is opened by the spring 52, water is drained, and the piston 51 extends and closes when the water temperature rises is conceivable, but the structure is not limited to this.

When the valve 53 opens at low temperature, the small hole 2a provided in the piston 2
Since the water discharge port of the four-way valve 7b and the water discharge port of the four-way valve 7b communicate with each other at atmospheric pressure, all the water in the hydraulic cylinder 1 is drained, the water in the hydraulic cylinder 1 freezes and expands, and the hydraulic cylinder 1 and the cap 40 may be damaged. Disappear.

Further, since the piston 2 is provided with the small hole 2a, it serves as a drainage channel at the time of low temperature as described above, and further the air in the hydraulic cylinder 1 is mixed with the piston 2 when the water supply is started or mixed.
It will play the role of easily pulling up and down as well as
The reversing operation is instantaneously performed, and the lifting operation becomes smooth.

In this device, the piston 2 has a diameter of 30 mm, and the piston 2 is provided with a small hole 2a having a diameter of 1.0 mm. It does not have a big impact. The reason why the small hole 2a having such a diameter is sufficient is that water pressure is alternately applied from above and below the piston 2, so that there is no fear of dust clogging. Further, the small holes 2a also serve to prevent the same water from staying in the hydraulic cylinder 1 for a long period of time.

[Effects of the Invention] As described above, according to the present invention, there is provided a shower device that vertically reciprocates a shower nozzle unit by using a hydraulic cylinder, in which a piston in the hydraulic cylinder is provided with an upper chamber and a lower chamber of the hydraulic cylinder. Since there is a small hole that penetrates so that it opens to the and, the air in the lower chamber can be evacuated from the small hole when driving, and the slider does not temporarily stop when reversing, smooth reversing operation Is obtained.

In addition, a freezing prevention low temperature operating valve for draining water from the hydraulic cylinder at low temperature is provided at the lower end of the hydraulic cylinder, so when the low temperature valve for freezing prevention opens at low temperature, the water in the hydraulic cylinder is drained. In this case, the water in the upper chamber can also be drained to the lower chamber by using a small hole, and can be drained by the cryogenic low-temperature operation valve to prevent the water in the hydraulic cylinder. All of the water can be drained, and for these reasons, damage to the device due to freezing does not occur.

[Brief description of drawings]

1 (a) (b) (c) are schematic explanatory views of the present invention, a schematic explanatory view showing the state in which the four-way valve is reversed and an overall perspective view, and FIG. 2 is a partially cutaway front view of the entire drive mechanism. 3 (a) and 3 (b) are a plan sectional view of the guide rail portion and a portion of the guide rail in which the slider is fitted, and FIG. 4 is a sectional view of the low temperature actuating valve for freeze prevention, and FIG. (a) and (b) are a schematic explanatory view and a perspective view of a conventional example, where 1 is a hydraulic cylinder, 2 is a piston,
2a is a small hole, 5 is a slider, 6 is a shower nozzle,
11 is an upper chamber, 15 is a lower chamber, and 50 is a low-temperature operation valve for preventing freeze.

Claims (2)

[Scope of utility model registration request] 1. A shower device for vertically reciprocating a shower nozzle part using a hydraulic cylinder, comprising a small hole penetrating a piston in the hydraulic cylinder so as to open in an upper chamber and a lower chamber of the hydraulic cylinder. Shower device provided. 2. A shower device according to claim 1, wherein a low-temperature operation valve for freeze prevention is provided at the lower end of the hydraulic cylinder.