Guttation pressure increasing device

Abstract

To solve such the problem that, when a discharge pressure from a discharge port is low, disposing a pump in the middle of piping in series can increase water pressure downstream from the pump but which requires power for operating the pump and causes a trouble of generating electricity costs additionally as running cost.SOLUTION: A water discharge pressure increasing device for increasing pressure of water discharged from a shower port and other discharge ports is provided with a compressed-air outlet for mixing compressed air into water upstream of the discharge ports.SELECTED DRAWING: Figure 1

Description

Technical Field

[0001] The present invention relates to a water discharge pressure increasing device that increases the water pressure discharged from a shower head or other discharge ports.

Background Art

[0002] The water pressure discharged from a shower head or other discharge ports may vary depending on the inner diameter of the water pipe and the pipe layout. When the water pressure is high, it can be adjusted by restricting the discharge amount with a faucet or the like. However, when it is low, it remains low even when the faucet is fully opened, causing dissatisfaction.

[0003] In such a case, it is known to connect a pump in series to the water pipe to increase the water pressure supplied downstream of the pump (see, for example, Patent Document 1).

Prior Art Documents

Patent Documents

[0004]

Patent Document 1

[0022] )

Summary of the Invention

Problems to be Solved by the Invention

[0005] As described above, if a pump is arranged in series in the middle of the pipe, it is possible to increase the water pressure downstream of the pump. However, since power is required to operate the pump, there is a problem that an electricity bill newly occurs as a running cost.

[0006] Therefore, in view of the above problems, an object of the present invention is to provide a water discharge pressure increasing device that can increase the water discharge pressure without using a pump.

Means for Solving the Problems

[0007] In order to solve the above problems, the water discharge pressure increasing device according to the present invention is a water discharge pressure increasing device that increases the water pressure discharged from a shower head or other discharge port. A compressed air outlet for mixing compressed air into the water is provided upstream of the discharge port. The compressed air is generated using a rotating blade rotated by a water flow supplied to the discharge port as a power source. The compressed air is generated by a compressor including a cylinder and a piston reciprocating within the cylinder. The piston is reciprocated by the rotational force of the rotating blade, and lubrication between the inner wall of the cylinder and the piston is performed by the water rotating the rotating blade. It is characterized by this.

[0008] Since water is an incompressible fluid, the pressure rapidly drops to atmospheric pressure after being discharged from the discharge port, and the discharge speed cannot be increased to a high speed. On the other hand, since air is a compressible fluid, it is decompressed to atmospheric pressure when discharged from the discharge port and expands at that time. Due to the expansion, the water is pushed in the discharge direction, so the discharge speed of the water increases, and as a result, the discharge pressure rises compared to the case of only water.

[0009] When mixing compressed air into the water, it is possible to have one compressed air outlet which is the outlet of the compressed air. However, if the above-mentioned compressed air outlets are configured to be arranged in a plurality so as to surround the water flow, the bubbles to be mixed can be made finer, and the compressed air can be evenly mixed into the water.

[0010] Note that when generating compressed air, power consumption causes running costs. Therefore, the above-mentioned compressed air is configured to be generated using a rotating blade rotated by the water flow supplied to the above-mentioned discharge port as a power source. done .

[0011] Furthermore , the above-mentioned compressed air is generated by a compressor composed of a cylinder and a piston that reciprocates inside the cylinder. The piston is reciprocated by the rotational force of the above-mentioned rotating blade, and the lubrication between the inner wall of the cylinder and the piston is performed by the water that rotates the above-mentioned rotating blade. right

[0012] Further, the above-mentioned discharge port is a shower head, and a switching mechanism for opening and closing the passage to the above-mentioned compressed air outlet may be provided at the gripping portion of the shower head where the shower head is provided.

Effect of the Invention

[0013] As is apparent from the above description, according to the present invention, by providing a compressed air outlet for mixing compressed air into water on the upstream side of the water discharge port, the water discharge pressure can be increased without using a pump.

Brief Description of the Drawings

[0014]

Figure 1

Figure 2

Figure 3

Embodiments for Carrying Out the Invention

[0015] Referring to FIGS. 1 and 2, reference numeral 1 denotes a shower head which is a part of the water discharge pressure increasing device according to the present invention. This shower head 1 has a hollow shape, and discharges the hot water flowing into the interior from the inlet 11 in a shower-like manner from a large number of fine shower openings formed in the shower plate 12.

[0016] The shower head 1 is provided with an inlet 2 through which compressed air is introduced. The compressed air introduced through this inlet 2 is discharged into the water from the compressed air outlet 23 through the air passage 21. Note that a part of the inner diameter of the passage portion 14 in the shower head 1 is narrowed to form a nozzle portion 13, and the compressed air outlet 23 is located on the downstream side of the nozzle portion 13 and is disposed so as to surround the nozzle portion 13. Further, a normally closed on-off valve 22 is provided in the air passage 21, and when the push button 22a is pushed, the air passage 21 is opened and the compressed air is ejected from the compressed air outlet 23.

[0017] By providing the compressed air outlet 23 on the downstream side of the nozzle portion 13, the influence of the pressure increase when the compressed air is discharged from the compressed air outlet 23 acts on the shower plate 12 side rather than on the inlet 11 side. Further, by arranging a plurality of (eight in the present embodiment) compressed air outlets 23 on the circumference, small and numerous bubbles are mixed into the water.

[0018] When the hot water with compressed air bubbles mixed in reaches the shower plate 12 in this way, the hot water is discharged from a large number of shower openings formed in the shower plate 12. The pressure of the discharged hot water immediately drops to atmospheric pressure, but since the compressed air mixed in expands when it is released from the shower opening, it will push out the hot water discharged from the shower opening from the back, and the discharge pressure can be increased compared to the case where no compressed air is mixed. In addition, the particles of the discharged hot water can be made finer to soften the impact of the shower, and since it contains a large number of bubbles, it can especially lift the hair and allow a large amount of hot water to reach the scalp.

[0019] By the way, the above-mentioned compressed air may be generated by an electric compressor, but as shown in FIG. 3, the rotating blades of the rotating blade 31 provided in the middle of the water supply pipe 3 that supplies hot water to the shower head 1 were used as the power source. When hot water flows through the water supply pipe 3, the rotating blade 31 rotates in the right direction in the figure. The rotational force is transmitted to the piston 4 via the crank mechanism 32. This piston 4 is configured to reciprocate within the cylinder 41. When the rotating blade 31 rotates and the piston 4 reciprocates, the air inhaled from the suction port 42 is compressed within the cylinder 41 and sent out from the exhaust pipe 43 into the buffer tank 5. The buffer tank 5 is filled with water 51 for filtering, and the compressed air from which impurities have been removed by this water 51 is guided to the above-mentioned inlet 2 via the pipe 53. In addition, a relief valve 52 for preventing the internal pressure of the buffer tank 5 from exceeding a certain pressure was provided.

[0020] By the way, it is desirable to lubricate between the inner peripheral surface of the cylinder 41 and the piston 4. In this embodiment, the hot water in the water supply pipe 3 is guided into the cylinder 41 via the water guide pipe 33, and lubrication is performed with the guided hot water. In the above embodiment, compressed air was generated by a piston that reciprocates within the cylinder, but it is not particularly limited as long as it has a structure capable of generating compressed air. For example, a diaphragm type compression device or the like may be used.

[0021] Note that the present invention is not limited to the above-described forms, and various modifications may be made without departing from the gist of the present invention.

Explanation of Reference Numerals

[0022] 1 Shower head 2 Inlet 3 Water supply pipe 4 Piston 5 Buffer tank 11 Inlet 12 Shower plate 13 Nozzle part 21 Air passage 22 On-off valve 23 Compressed air outlet 31 Rotating blade 32 Crank mechanism 33 Water conduit 41 Cylinder 52 Relief valve

Claims

1. In a water discharge pressure increasing device for increasing the water pressure discharged from a shower head or other discharge port, a compressed air outlet for mixing compressed air into water is provided upstream of the discharge port. The compressed air is generated using a rotating blade rotated by the water flow supplied to the discharge port as a power source. The compressed air is generated by a compressor including a cylinder and a piston reciprocating within the cylinder. The piston is reciprocated by the rotational force of the rotating blade, and lubrication between the inner wall of the cylinder and the piston is performed by the water rotating the rotating blade. A water discharge pressure increasing device characterized by this.

2. The water discharge pressure increasing device according to claim 1, characterized in that a plurality of the compressed air outlets are arranged so as to surround the water flow.

3. The discharge port is a shower head, and a switching mechanism for opening and closing a passage to the compressed air outlet is provided at a gripping portion of a shower head provided with the shower head. The water discharge pressure increasing device according to claim 1 or claim 2, characterized by this.

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