TWM596589U - Vapor ejector head - Google Patents

Abstract

A steam spray head includes a spray end formed at one end and suitable for spraying steam. The spray end includes an inner wall surface and an outer wall surface spaced from the inner wall surface. The spray end has a A gas chamber defined by a wall surface and extending along a central axis, and a plurality of spray holes that are angularly spaced around the central axis and obliquely communicate the inner wall surface and the outer wall surface, each of the spray holes An eccentric line that does not overlap or intersect the central axis extends eccentrically, and the diameter of each nozzle hole is smaller than the diameter of the gas chamber. By the eccentric design of the eccentric lines of the nozzle holes that do not coincide or intersect with the central axis, the swirling airflow can be jetted with excellent jet effect.

Description

Steam nozzle

The present invention relates to a spray head, especially a steam spray head suitable for spraying steam.

Referring to FIGS. 1 and 2, a conventional steam spray head 1 is suitable for being installed on a rod (not shown) that can supply steam, such as a steam stick for milk foam of a coffee machine. The steam spray head 1 includes a connecting portion 11 formed at one end and adapted to be mounted on the rod, and a spray end portion 12 formed at the other end and adapted to eject steam. The spray end 12 has an air chamber 121 extending along a central axis 13 and a plurality of spray holes 122 which surround the central axis 13 at angular intervals and communicate with the air chamber 121, each of the spray holes 122 Each extends along a core line 14 at an angle to the central axis 13 and intersecting the central axis 13.

When in use, the spray end 12 of the steam spray head 1 is extended under the milk liquid surface, and the steam is controlled to be input into the air chamber 121 from the rod, and is sprayed straight through the spray holes 122 to form a radial shape Straight air flow, because the direct air flow is not easy to stir the milk or the stirring range is small, it is not easy to froth the milk, so the operator must shake or rotate the milk cup slightly, or even tilt the milk cup to successfully produce milk foam. The milk foam expansion degree, foaming degree, cotton density and soft mouthfeel are all insufficient, so the design of the existing steam nozzle 1 still needs to be improved.

Therefore, the purpose of the present invention is to provide a steam spray head that can overcome at least the shortcomings of the prior art.

Therefore, the new steam spray head includes a spray end formed at one end and suitable for spraying steam. The spray end includes an inner wall surface and an outer wall surface spaced from the inner wall surface. The spray end has a A gas chamber defined by the inner wall surface and extending along a central axis, and a plurality of spray holes that are angularly spaced around the central axis and obliquely communicate the inner wall surface and the outer wall surface, each of the spray holes Each extends eccentrically along an eccentric line that does not coincide or intersect the central axis, and the diameter of each nozzle hole is smaller than the diameter of the gas chamber.

The effect of the new type is that, by the oblique cut eccentric design of the eccentric lines of the nozzle holes, the swirling airflow can be ejected with excellent jet effect.

Before the present invention is described in detail, it should be noted that in the following description, similar elements are denoted by the same number.

Referring to FIGS. 3 and 4, a first embodiment of the new steam spray head 2 is suitable for being installed on a rod (not shown) that can output steam, such as a steam stick for milk foam of a coffee machine, and a spray Tubes or a spray gun... The steam rods of household or industrial machines, etc., can spray high-flow steam. The following is the example to be installed on the steam stick for milk foam of the coffee machine and can be used to send milk foam. To illustrate.

The steam spray head 2 is a hollow ball head columnar body, made of heat-resistant materials such as stainless steel or Teflon, and includes a connecting portion 3 formed at one end and suitable for being mounted on the rod, and One is formed on the other end opposite to the connecting portion 3 and is suitable for the spraying end portion 4 for steam ejection. Of course, the shape and size of the steam spraying head 2 can also be changed, and is not limited to the first embodiment.

The connecting portion 3 is in the form of a ring sleeve connected at both ends, and is detachably screwed or sleeved on the rod for easy cleaning, but is not limited to this in implementation, and may be fixedly connected to the rod The above will not be described here.

The spray end portion 4 is in the shape of a hemispherical shell with an opening toward the connecting portion 3, is connected to one end of the connecting portion 3 in a body, and includes an inner wall surface 41 facing the end edge of the rod, and a The outer wall surface 42 is spaced apart from the wall surface 41. In the first embodiment, the outer wall surface 42 is a semi-spherical surface. Of course, in other variations, it may be conical, pyramidal, etc., and its shape is not limited. The spray end 4 has an air chamber 44 defined by the inner wall surface 41 and extending along a central axis 43, and three air chambers angularly spaced around the central axis 43 and obliquely communicating with the inner wall surface 41 and The injection hole 45 of the outer wall surface 42.

The nozzle holes 45 of the first embodiment are arranged at equal angles, and each of the nozzle holes 45 extends eccentrically along an eccentric line 46 that does not overlap or intersect the central axis 43, and has an An inner hole end 451 on the inner wall surface 41 communicating with the air chamber 44 and an outer hole end 452 formed on the outer wall surface 42 and farther away from the central axis 43 than the inner hole end 451, each of the spray holes 45 The pore diameter is smaller than the diameter of the gas chamber 44. It should be noted that the number of nozzle holes 45 is not limited to three, and may be two, four, five, etc. according to actual needs, as shown in FIG. 5 is another aspect of the first embodiment, showing that The spray end 4 has four spray holes 45, which can disperse the steam intensity and provide a more stable and uniform steam flow.

In use, the spray end 4 of the steam spray head 2 is extended under the milk liquid surface, and the steam is controlled to be output by the rod. When the steam enters the gas chamber 44, it will be inclined by the spray holes 45 It is sprayed at high speed to form a vortex air flow to stir the milk, which can quickly and evenly produce milk foam, and at the same time pull the coarse foam under the liquid surface again to make the surface clean, so it can successfully produce a uniform, detailed, smooth, rich, dense In addition to enhancing the soft taste, the milk foam is easier to shape when drawing flowers on coffee, and the pattern shape can last longer.

Referring to FIGS. 6 and 7, the structure of one of the second embodiments of the steam nozzle 2 of the present invention is substantially the same as that of the first embodiment. The difference is that the spray end 4 also has a communication extending along the central axis 43 and communicating The shaft holes 47 of the inner wall surface 41 and the outer wall surface 42. In use, in addition to the diagonal airflows from the spray holes 45, the shaft holes 47 also spray straight airflow, which can fill the central space of the swirling airflow sprayed from the spray holes 45, thereby increasing the sprayed The steam flow can form a more uniform and comprehensive milk froth effect. The spray end portion 4 of the second embodiment has five spray holes 45. It should be noted that the number of spray holes 45 is not limited to five, and may be two, three, four, six, etc. according to actual needs. As shown in FIG. 8, which is another aspect of the second embodiment, it is shown that the spray end portion 4 has six spray holes 45 and one shaft hole 47.

To sum up, the new steam nozzle 2 can whirl out a vortex flow obliquely by the eccentric design of the eccentric lines 46 of the nozzle holes 45 that do not overlap or intersect the central axis 43, and have excellent jet effect. It can improve the quality of the milk foam. In this way, in the process of foaming the milk, there is no need to shake, tilt or rotate the milk cup. As long as the milk cup is held still, you can successfully make beautiful milk foam. Simple and convenient, so it can really achieve the purpose of new cost.

However, the above are only examples of the new model. When the scope of the new model cannot be limited by this, any simple equivalent changes and modifications made according to the patent application scope and patent specification content of the new model are still regarded as Within the scope of this new patent.

2: steam nozzle 3: connection 4: spray tip 41: inner wall surface 42: outer wall surface 43: Central axis 44: air chamber 45: Orifice 451: inner hole end 452: outer hole end 46: Eccentric line 47: Shaft hole

Other features and functions of the present invention will be clearly presented in the embodiments with reference to the drawings, in which: Figure 1 is a front view of a conventional steam nozzle; 2 is a cross-sectional view taken along line 2-2 in FIG. 1; Fig. 3 is a front view of a first embodiment of the new steam nozzle; 4 is a cross-sectional view taken along line 4-4 in FIG. 3; 5 is a front view of another aspect of the first embodiment; 6 is a front view of a second embodiment of the new steam nozzle; 7 is a cross-sectional view taken along line 7-7 in FIG. 6; and FIG. 8 is a front view of another aspect of the second embodiment.

2: steam nozzle

4: spray tip

43: Central axis

45: Orifice

451: inner hole end

452: outer hole end

46: Eccentric line

Claims (5)

A steam spray head includes: a spray end formed at one end and suitable for spraying steam; the spray end includes an inner wall surface and an outer wall surface spaced from the inner wall surface; the spray end has a An air chamber defined by an inner wall surface and extending along a central axis, and a plurality of nozzle holes that are angularly spaced around the central axis and obliquely communicate the inner wall surface and the outer wall surface, each of the nozzle holes An eccentric line that does not coincide or intersect the central axis extends eccentrically, and the diameter of each of the injection holes is smaller than the diameter of the gas chamber. The steam spray head according to claim 1, wherein each of the spray holes has an inner hole end formed on the inner wall surface, and an outer hole formed on the outer wall surface farther from the central axis than the inner hole end Hole end. The steam spray head according to claim 2, wherein the spray end further has a shaft hole extending along the central axis and communicating the inner wall surface and the outer wall surface. The steam showerhead according to claim 1, 2 or 3, wherein the outer wall surface is a semi-spherical surface. The steam showerhead according to claim 1, wherein the steam showerhead further includes a connecting portion formed at the other end.

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