JPH0418950A - Fluid oscillating element nozzle - Google Patents

Abstract

PURPOSE:To improve the oscillating performance by providing an air hole communicating with the atmosphere at the confluence between the water circulated from a feedback water channel and the water injected from the main nozzle so as to improve the responsiveness of a switching action to the left and right wall surfaces of a fluid oscillating element nozzle. CONSTITUTION:A fluid supplied from a supply port 13 is injected from the injection port 14 of a fluid oscillating element nozzle and oscillated to the left and right. A central water channel 7 wider than the main nozzle 5 for injecting a fluid is provided on the downstream side of the nozzle 5. A water discharge port 9 having a water current separating zone 8 for circulating a part of the water injected from the nozzle 5 to the nozzle 5 is furnished on the downstream side of the water channel 7. Meanwhile, a couple of feedback water channels 10 for circulating the fluids separated by the separating zone 8 to the outlet of the nozzle 5 are provided on both sides of the water channel 7. An air hole 11 communicating with the atmosphere is furnished at the confluence between the water circulated from the water channel 10 and the water injected from the nozzle 5. As a result, the oscillating performance is drastically enhanced.

Description

DETAILED DESCRIPTION OF THE INVENTION [Industrial Field of Application 1] The present invention relates to a fluid oscillation concentrator (7) used for cleaning devices such as sanitary toilet seats and bathing Java devices.

[Conventional technology 1] Recently, some cleaning devices such as sanitary toilet seats and bathing showers have been using nozzles that utilize fluid oscillation collectors that oscillate water jets from side to side by utilizing the pressure difference of the water flow. It is being said. This kind of fluid oscillation element nozzle has no moving parts,
Due to its simple structure, no maintenance is required and V'a can be done at low cost.6 In addition, the water jet continuously oscillates due to the water pressure of the water flow, resulting in a high cleaning effect and an improved feeling of pleasure.

As for the structure of the /7:ru using a fluid oscillation element, there are those that have a feedback waterway and those that utilize a full room.

Problem 1 to be Solved by the Invention However, in such a configuration, as shown in FIG. The air then rises from the main nozzle 5 to a reduced pressure chamber communicating with the atmosphere. When the jetted water ejected from the main nozzle 5 passes through the depressurized central waterway 7, which communicates with the atmosphere, it is caused by the coang effect on the left and right walls (ν).
It sticks to any part of the body. Since feedback channels 10 are formed on both sides of the central water channel 7, the water jetted from the main nozzle 5 passes while adhering to the left and right walls of the central channel 7 alternately. However, if the width of the central waterway 7 and the width of the water outlet 9 are not appropriate, the water jetted from the main nozzle 5 may not adhere to the wall surface of the central waterway 7 and may travel straight, or the water may be disposed on the left or right side. There is no clear pressure difference in the feeder water channel 10, and the jetted water does not oscillate.

On the other hand, by providing the air hole 11 communicating with the atmosphere in the central waterway 7, the water jetted from the main waterway 77 mixes air due to the ejector effect. 11 is incorrectly positioned, the internal pressure balance of the central waterway 7, which is a decompression chamber, may be disrupted, leading to problems such as water being jetted from the air holes 11 or malfunctioning oscillation of water jetted from the water spout 9. Ta.

The present invention was made in view of these problems,
The purpose is to provide a fluid oscillation element nozzle that can improve the responsiveness of the switching operation to the left and right wall surfaces of the fluid oscillation element nozzle through simple improvements, and can significantly improve the oscillation performance.

[Means for Solving the Problems] The fluid oscillation element nozzle of the present invention is a fluid oscillation concentrator nozzle that oscillates and jets fluid supplied from the supply port 3 from the injection port 14 to the left and right, and Main nozzle 5 to inject
, a central waterway 7 that is wider than the main waterway 5 downstream of the main waterway 5, and a water flow separation system that circulates a portion of the water jetted from the main waterway 5 to the main waterway 5. A spout 9 having a band 8 and a feedback water channel 10 on both sides of the central waterway 7 for circulating the fluid separated by the water flow separation zone 8 to the outlet of the main nozzle 5. The main nozzle 5 is characterized in that an air hole 11 communicating with the atmosphere is provided at the confluence part with the jet water.

By arranging the air hole 11 communicating with the atmosphere at the confluence of the recirculated water from the feedback waterway 10 and the water jetted from the main nozzle 5, as shown in the action, the air suction action due to the ejector effect is maximized. Feedback waterway 10
The swirling water jet from the main nozzle 5 sucking air from the air hole 11 deflects the water jet from the main nozzle 5 and helps it adhere alternately to the wall surface of the central waterway 7, and the left and right wall surfaces of the fluid oscillation concentrator nozzle. This improves the responsiveness of the switch operation and greatly improves the oscillation performance even when the amount of water injected is low.

1 EXAMPLE] Hereinafter, embodiments of the present invention will be described in detail based on the drawings.6 As shown in FIG.
, Patsukin 2, Nozzle L! It has a laminated structure of E3, and the nozzle body 1 is provided with a water supply pipe 4. The nozzle body 1 and the nozzle lid 3 can be easily and inexpensively joined by adhesive or ultrasonic tL welding.

212I indicates a water channel pattern formed in the nozzle body 1 for oscillation. The water supply pipe 4 is an introduction waterway 6 which is connected to the main part of the fluid oscillation collector nozzle A and has a single-shaped structure.
downstream of the main nozzle 5, there is a central waterway 7 wider than the main nozzle 5, and further downstream of the central waterway 7, a widening spout 9 having a water flow zone M zone 8 is formed. There is. Further, on both sides of the central waterway 7, a pair of feedback waterways 10 are formed on the left and right sides for causing a part of the jet water separated from the water flow separation zone 8I to flow swirlingly to the outlet of the main nozzle 5. The air hole 11 is located at the center of the central waterway 7 and at the return point of the swirling flow of the feedback waterway 10, that is, the main /f,
It is provided in a region 20 at the confluence with the exit of the pipe 5.

By providing the air hole 11 at the part where the water is injected from the main nozzle 5 at the highest speed, the air suction force due to the ejector effect is the greatest, and it is possible to mix in air to the extent of about 30% of the amount of water to be injected. On the downstream side of the air hole 11, the apparent volume increases by about 1.3 times due to air mixing, so in order to cause the wall adhesion phenomenon due to the Fang effect, the width of the central water 8@7; 11" 5 width ladle 2
About double that is desirable. In addition, the water flow #11 of the spout 9 actively introduces a part of the jet water adhering to the wall surface on one side to the feedbank waterway 10 side and closes it, making it different from the feedback waterway 10 on the opposite side. It serves to generate pressure, and in order to increase the separation effect, it is desirable to have the width of the central waterway 7 and the space between the channels.

If these certain ranges are exceeded, the internal pressure balance will be disrupted, resulting in rod-shaped or candle-shaped jets, the jet water will not be in a stable oscillation state, and the amount of air mixed in will also decrease.

The operating state will be explained in detail using the fpJ2 diagram. First, if the water jetted from the main jet 5 sucks air through the air hole 11 and adheres to the left side of the central waterway 7 due to the coring effect, then the water jetted from the left water flow aperture 8a flows into the feedback waterway 10a on the left side. Some of them will be introduced.

Therefore, due to the pushing action in the water flow separation zone 8 and the saccilane effect at the outlet of the main nozzle 5, the left feedbank waterway 108 is closed with water! ! As a result, a pressure difference is generated in the fiber/return waterway 1 (Oa) on the right side, and when P >P', the pressure in the feedback waterway (Oa) on the left side increases. Main nozzle 5
The water jetted out from the low-pressure side, that is, the right wall of the central waterway 7;
2, the adhesion direction is changed so that P'<P'', and thereafter the ejected water automatically switches the adhesion direction, so the ejected water from the water spout 9 and others automatically repeats the oscillation state.

Here, the water jetted from the main nozzle 5 travels straight to the air hole 11, and after being mixed with air, it adheres to either the left or right wall of the central waterway 7, but the air hole 11 is connected to the outlet side 12 of the feedback waterway 10. By installing the swirling water flow from the feedbank waterway 10 on the high-pressure side toward the low-pressure side on the opposite bank, reducing the opening area of the central waterway 7, the opening area of the central waterway 7 is reduced. This has the effect that minute pressure differences can be detected with high sensitivity, and the backlash movement to the left and right walls of the central waterway 7 can occur smoothly.

Figure 3 shows the oscillation v between the width of the main /'
Area A is shown, but the width of the central waterway 7 and the width of the water flow separation zone 8 are preferably the width between the lanes (about 0.8 to i, 2 mm), and both are 1.7 mm, which is the width of the width of the 72" square 5. 2. There is a region T-p of stable oscillation that is about 'E times.As shown in 2, the narrow openings of the medium-fired waterway 7 and the spout 9 are placed between the roads, etc., and the main/tessellation 5 By setting the width to the appropriate size, the internal pressure balance in the fluid oscillation element nozzle A can be maximized, and the air mixing rate can be maximized, making the oscillation characteristics from the water spout 9 uniform and stable. It is something.

As a result, an automatic oscillation nozzle with high stimulation and cleaning effects in a gas-liquid mixed state can be realized with a simple and inexpensive structure, and is therefore suitable for use in hot water bidet toilet seats, bathing and shower equipment, and the like.

1 Effects of the Invention 1 In summary, the present invention provides an air hole communicating with the atmosphere at the confluence of the recirculated water from the feedback waterway and the water jetted from the main nozzle. It has the strongest air suction effect (and can detect minute pressure differences with high sensitivity), so the responsiveness of the switch operation to the left and right walls of the fluid oscillation element nozzle is improved, and it is effective even at low water injection volumes. However, it has the advantage of significantly improving the oscillation performance7)

[Brief explanation of the drawing]

tIS1 diagram (al(b) is between the sides of one embodiment of the present invention,
A cross-sectional view, and Figure 2 is a front view showing the same waterway, p! S3 is a graph showing the oscillation area as above, 4th is a front view showing the conventional waterway, 5 is the main nozzle, 7 is the central waterway,
8 is a water flow separation zone, 9 is a water outlet, 10 is a bank waterway in the feed, 1 is an air hole, 13 is a supply port, and 14 is an injection port. Agent Patent Attorney Ishi 1) Ai Nanashigi ≠ Issue [ -1-~ Procedural amendment (voluntary) October 13, 1990

Claims (1)

[Claims] (1) A fluid oscillation element nozzle that oscillates and sprays the fluid supplied from the supply port to the left and right from the injection port, and has a main nozzle that sprays the fluid, and a central channel downstream of the main nozzle that is wider than the main nozzle. , a spout having a water flow separation zone downstream of the central waterway that circulates a portion of the water jetted from the main nozzle to the main nozzle, and a water flow separation zone on both sides of the central waterway that causes the fluid separated by the water flow separation zone to flow to the outlet of the main nozzle. 1. A fluid oscillation element nozzle having a pair of feedback channels, and an air hole communicating with the atmosphere arranged at a confluence of circulating water from the feedback channels and water jetted from a main nozzle.