CN101972720A - Water saving shower nozzle - Google Patents

Abstract

The invention relates to a water saving shower nozzle. The nozzle is provided with an inflow part to allow the liquid to flow in, a jetting aperture to jet the liquid which has flowed in from the inflow part substantially in the direct direction and a defluxion part which broadens to the end connected with the downstream side of the jetting aperture in this order wherein the defluxion part is connected to the jetting aperture axis with an inclination angle of 55-65 DEG to the jetting aperture axis. The shower nozzle is equipped with the above-mentioned nozzle. The shower nozzle and the nozzle provided in the invention are capable of jetting a liquid to a substantially direct direction and to a farther distance while holding a stabilized state of jetting even if the inflow pressure of the liquid is low.

Description

A water-saving shower head

Technical field:

The present invention relates to a nozzle and a spray head, in particular to a liquid nozzle which sprays liquid substantially vertically in gas and a spray head using the liquid nozzle.

Background technique:

All the time, in order to keep the good jet state of shower nozzle, people have made a lot of effort. For example, a cleaning device is disclosed in Japanese Patent Document 1: Unexamined Patent Publication No. Hei 10-328632, which uses a rotating brush to remove scale attached to the nozzle, while the nozzle is installed on the shower pipe; in Japanese Patent Document 2: Japanese Patent Laying-Open No. 11-151457 discloses a spray nozzle for a shower device that sprays hot water in the air. In this spray nozzle, in order to keep the fluid pressure small and equal Small spray particles and a large spray angle, the hot water contact surface composed of a micro-cone surface is formed under the spray hole, in this spray nozzle, there is a rotating hole for rotating hot water, spraying rotating heat The water spray hole and the contact surface of the hot water sprayed from the spray hole can be sprayed at a large spray angle even if the supply pressure is low.

The cleaning device described in Japanese Patent Document 1 has the problem of high cost of the nozzle due to the use of a complex device of a motor; the spray nozzle described in Japanese Patent Document 2 rotates the fluid and expands the spray angle, which is not conducive to making the liquid actually spray vertically far away. place.

Invention content:

In order to overcome the deficiencies of the prior art, the present invention provides a water-saving shower nozzle and a nozzle using the water-saving shower nozzle, so that even when the liquid inflow pressure is low, it can continue to maintain a stable spraying state, making the liquid Actually spray farther vertically.

According to a water-saving shower nozzle provided by the present invention, the inflow part for allowing the liquid to flow in is sequentially installed, and the spray hole that makes the liquid flowing in from the inflow part actually spray vertically is connected to the bottom of the spray hole and gradually An enlarged outflow part, the outflow part is connected with the injection hole axis at an inclination angle of 55-65 degrees. In fact, the spray hole that flows into the liquid through the inflow part is vertically sprayed, and the outflow part that is connected to the bottom of the spray hole and gradually expands is connected with the spray hole axis at an inclination angle of 55 to 65 degrees, thereby effectively creating turbulent flow around the spray hole , so that even if the liquid inflow pressure is low, the ejection state can be kept stable. In the water-saving shower nozzle of the present invention, the above-mentioned outflow part preferably forms an inclination angle of 60 ± 1 degree with the axis of the injection hole, and the closer the inclination angle formed with the axis of the injection hole is to 60 degrees, the stronger the turbulence generated around the injection hole The more stable it is, the more stable the liquid ejection state can be.

According to the water-saving shower nozzle provided by the present invention, it also has the following subsidiary technical features:

The outflow part is formed of a conical surface. By forming the outflow part into a conical surface, the outflow part can be processed more easily, and the turbulent flow generated around the injection hole can be made more stable.

The inflow part forms an inclination angle of 3-7 degrees with the spray hole axis, and the liquid passage toward the spray hole direction is narrowed. In the water-saving shower nozzle of the present invention, the inflow part forms an inclination angle of 3-7 degrees with the spray hole axis. The angle of inclination, by narrowing the liquid flow channel toward the injection hole, the linear velocity of the liquid entering the inflow part can be moderately increased, and at the same time flow toward the injection hole, so as to prevent the liquid from containing impurities from blocking the liquid flow channel, and at the same time, prevent negative pressure in the liquid flow channel , to seek a more stable injection state.

The liquid is composed of water containing hardness components. When the liquid to be sprayed is composed of water containing hardness components, the liquid nozzle of the present invention is suitable, that is to say, by optimizing the spray state of the liquid sprayed vertically from the spray hole, Metal ions such as calcium are precipitated into the liquid flow channel, which can prevent the flow channel from being blocked.

The present invention also provides a water-saving shower nozzle equipped with the above-mentioned water-saving shower nozzle, which includes a water-saving shower nozzle. The spray hole where the liquid is actually sprayed vertically is connected to the gradually enlarged outflow part below the spray hole, and the outflow part is connected to the axis of the spray hole at an inclination angle of 55 to 65 degrees; the outflow part is formed by a conical surface Composition; the inflow part forms an inclination angle of 3-7 degrees with the axis of the spray hole, and the liquid channel toward the spray hole is narrowed; the liquid is composed of water containing hardness components. By incorporating the above-mentioned water-saving nozzle into the spray head, the resulting spray head can realize the advantages of the above-mentioned water-saving shower nozzle, that is, using the spray head of the present invention, the spraying state of the liquid sprayed by the spray head can be further stabilized and optimized.

According to the water-saving shower nozzle and spray head provided by the present invention, turbulent flow can be effectively generated around the spray hole, so even if the liquid with relatively low pressure is sprayed, a stable spray state can be formed. With such a spray head with a stable spray state, it is possible to provide shower spray in a stable spray state.

Description of drawings:

Fig. 1 is a sectional view near the spray hole of the water-saving shower nozzle provided by the present invention. ;

Figure 2 is a schematic diagram of a spray distance measuring device for evaluating the spray performance of a water-saving shower nozzle;

FIG. 3 is a characteristic diagram of the results of evaluating the spray performance of the water-saving shower nozzle when the inclination angle of the outflow part is different using the spray distance measuring device of FIG. 2 .

Detailed ways:

In Fig. 1-3, the components represented by each label are: 1 water-saving bathing nozzle, 2 spray hole, 3 inflow inlet, 4 inflow part, 5 axial line of spray hole, 6 outflow part, 7 jet flow, 8 turbulent flow , 9,10 liquid delivery pipe, 11 injection distance measuring device, 12 flowmeter, 13 characteristic points, 15 inclination angle of the inflow part, 16 inclination angle of the outflow part.

Referring to Fig. 1 to Fig. 3, Fig. 1 shows a sectional view near the spray hole 2 of the water-saving shower nozzle 1 provided by the present invention. The sprayed liquid is supplied to the inflow part 4 through the inflow port 3, and is actually sprayed out vertically from the spray hole 2 formed at the bottom of the inflow part 4. The inclination angle 15 of the inflow part formed by the inflow part 4 and the axial line 5 of the spray hole is 7 degree of conical surface, the bottom of the injection hole 2 is connected to the gradually expanding outflow part 6, and the outflow part 6 forms a conical surface with an inclination angle of 60 degrees with the injection hole axial line 5, by setting such an outflow part for the outflow part 6 Inclination angle 16, when the liquid supplied to the inflow part at an appropriate flow rate is ejected through the injection hole 2, a turbulent flow 8 can be formed around the jet stream 7. In Fig. 1, since the inflow part 4 and the outflow part 6 actually form a cone On the surface, the turbulent flow 8 forms a donut-shaped three-dimensional flow as a whole.

Although the principle of forming the turbulent flow 8 is not clear, it is generally believed that the air movement induced by the water potential of the jet stream 7 creates a negative pressure area near the outflow part 6, and the air is concentrated into the negative pressure area, thereby creating a negative pressure area in the direction of the arrow in Figure 1. Circulating flow, turbulent flow 8 is mainly composed of air.

Fig. 2 is a schematic diagram of the spray distance measuring device 11, the spray distance measuring device 11 is used to evaluate the spray performance of the water-saving shower nozzle, the liquid supplied to the liquid delivery pipe 9 is installed at the front end of the liquid delivery pipe 10 through the flowmeter 12 with a needle valve The spray hole 2 of the liquid nozzle 1 is sprayed out, and the jet flow 7 is a vertical spray, that is, it is sprayed in the horizontal direction, but it is not completely horizontal, and a slightly radial expansion flow is formed through the spray hole 2, so there is a characteristic point 13. Once it rises to a high At the position of the spray hole 2 , it will be lowered to the height of the spray hole 2 due to gravity, and the spray performance of the liquid nozzle 1 can be evaluated by comparing the horizontal distance Δp of the spray hole 2 at the characteristic point 13 .

FIG. 3 is a characteristic diagram showing the evaluation results of evaluating the spray performance of a plurality of water-saving shower nozzles with different inclination angles of the outflow portions using the spray distance measuring device 11 of FIG. 2 . The measurement conditions are as follows: inflow flow rate: 6.752 L/hr, inflow pressure: 10 kPa, hole diameter of injection hole: ￠0.8 mm.

As shown in Fig. 3, it can be found that the inclination angle 16 of the outflow portion 6 is preferably 55-65 degrees to the injection hole axis 5, and the closer to 60 degrees, the more the injection performance can be improved.

In terms of industrial applicability, the water-saving shower head and nozzle provided by the present invention are suitable for spraying various liquids such as water in air and other gases.

The above-described embodiments are only for the purpose of illustrating the present invention, rather than limiting the present invention. Those of ordinary skill in the art can also make various changes and improvements on this basis without departing from the spirit and spirit of the present invention. protected range. In the appended claims, it is intended to cover all such changes and modifications as are within the spirit and scope of the invention.

Claims (10)

1. One kind the water saving shower nozzle, it is characterized in that: the inflow part that liquid is flowed into is housed in order, make the spray-hole that in fact vertically sprays from the described liquid that flows into the part inflow, the outflow part that is connected to described spray-hole below and enlarges gradually, described outflow part is connected with the angle of inclination of spray-hole axle with 55～65 degree.
2. 2. water saving shower nozzle according to claim 1 is characterized in that: described outflow part is made of taper seat.
3. 3. water saving shower nozzle according to claim 1 and 2 is characterized in that: described liquid is made of the water that contains hardness components.
4. 4. water saving shower nozzle according to claim 1 and 2 is characterized in that: the described part that flows into forms 3～7 angles of inclination of spending with the spray-hole axle, and is reduced towards the fluid passage of spray-hole direction.
5. 5. according to the water saving shower nozzle described in the claim 4, it is characterized in that: described liquid is made of the water that contains hardness components.
6. One kind the water saving spray head for shower, it is characterized in that: comprise water saving shower nozzle, described nozzle is equipped with the inflow part that liquid is flowed in order, make the spray-hole that in fact vertically sprays from the described liquid that flows into the part inflow, the outflow part that is connected to described spray-hole below and enlarges gradually, described outflow part is connected with the angle of inclination of spray-hole axle with 55～65 degree.
7. 7. water-saving shower nozzle according to claim 6 is characterized in that: described outflow part is made of taper seat.
8. 8. according to the water-saving shower nozzle described in claim 6 or 7, it is characterized in that: described liquid is made of the water that contains hardness components.
9. 9. according to claim 6 or 7 described water-saving shower nozzles, it is characterized in that: the described part that flows into forms 3～7 angles of inclination of spending with the spray-hole axle, and is reduced towards the fluid passage of spray-hole direction.
10. 10. water-saving shower nozzle according to claim 9 is characterized in that: described liquid is made of the water that contains hardness components.

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