KR20210065512A - Shower head - Google Patents

Abstract

The present invention relates to a shower head capable of controlling the spray area of a discharged water stream, and specifically, to a shower head in which one side is connected to a shower hose and a plurality of injection holes are provided on the other side, wherein the spray area of a water stream can be controlled through the plurality of injection holes.

Description

shower head

The present invention relates to a shower head, and more particularly, to a shower head capable of controlling a spray area of a discharged water stream.

In general, a shower head used in various shower facilities such as a shower room or bathroom is equipped with a flat spray plate at the tip of the shower body connected to the shower hose, and a plurality of small spray holes of the same size are formed in the spray plate, The water supplied through the shower hose is dispersed and discharged through the watering hole of the watering plate to perform the shower function.

However, the conventional shower head has a disadvantage in that it is not possible to adjust the spray area according to the situation depending on the shower part or use.

The present invention has been devised in order to solve the above problems, and an object of the present invention is to provide a shower head capable of adjusting the spray area of the discharged water stream.

Another object of the present invention is to provide a shower head capable of expanding a jetting area of a water stream.

Another object of the present invention is to provide a shower head capable of changing the arrangement of a plurality of injection holes as necessary.

The above object of the present invention can be achieved by providing a shower head in which one side is connected to a shower hose and a plurality of injection holes are provided on the other side, the shower head capable of controlling the injection area of a water stream through the plurality of injection holes. have.

According to one feature of the present invention, it is possible to change the arrangement of at least some of the plurality of injection holes.

According to another feature of the present invention, the plurality of injection holes, a first injection hole group formed to have a predetermined area on the other side of the shower head, is formed to have a predetermined area on one side of the first injection hole group, and the arrangement shape change is possible A possible second group of nozzles may be included.

According to another feature of the present invention, the first injection hole group is disposed in the center of the other side of the shower head, the second injection hole group is at least one disposed outside the first injection hole group, the second injection hole group It is possible to adjust the spray area while rotating this movement.

According to another feature of the present invention, the first group of nozzles is formed on the surface of the protrusion that is formed to protrude to have a predetermined area on the other side of the shower head, and the second group of injection holes is disposed in the outer circumferential direction of the first group of nozzles. Doedoe is disposed along a plurality of wing portions each formed to have a predetermined area, the plurality of wing portions are each capable of rotational movement around one end of the axis.

According to another feature of the present invention, the protrusion may be formed in a circular shape, and the wing portion may be formed in an arc shape having a predetermined radius of curvature and a length.

According to another feature of the present invention, the shower head may include a body having one end connected to the shower hose and having a discharge port formed at the other end, and a cover coupled to the discharge port and formed with a plurality of injection ports.

According to another feature of the present invention, the plurality of nozzles, a first injection hole group formed to have a predetermined area on the front surface of the cover, is formed to have a predetermined area on one side of the first injection hole group, and the arrangement shape change is possible A possible second group of nozzles may be included.

According to another feature of the present invention, the cover is coupled to the outlet and includes a coupling part in which the first jetting hole group is formed in the center, and one end of the coupling part disposed along the outer circumferential direction of the first jetting hole group. It is rotatably coupled and may include a plurality of wings in which the second injection hole group is formed.

According to another feature of the present invention, the coupling portion includes a protrusion formed to protrude from the center of the front surface, and an extension formed to extend along the periphery of the protrusion, the first injection hole group is formed in the protrusion, and the plurality of One end of the wing part may be rotatably coupled to the extension part along the circumference of the protrusion part.

According to another feature of the present invention, the coupling portion further includes a plurality of hollow bosses protruding from the extension portion, the hollow boss may be coupled to one end of the wing portion.

According to another feature of the present invention, the protrusion may be formed in a circular shape, and the wing portion may be formed in an arc shape.

According to another feature of the present invention, when the wing portion is folded, the inner surface of the wing portion may be aligned along the circumference of the protrusion, and the outer surface may be aligned along the rim of the extension portion.

According to another feature of the present invention, in order to limit the rotation angle of the wing portion, a rib-shaped stopper portion may be formed to protrude from the front surface of the extension portion spaced apart from one side of the hollow boss.

According to another feature of the present invention, in order to limit the rotation angle of the wing portion, a stopper in the form of a stopping protrusion may be formed adjacent to the front edge of the extension portion.

On the other hand, an object of the present invention described above includes a body having a shower hose connected to one end and a discharge port formed at the other end, and a cover coupled to the discharge port and formed with a plurality of injection ports, wherein the cover is a front surface of the discharge port It can also be achieved by providing a shower head including a coupling part coupled to the and a plurality of wings disposed along the front edge of the coupling part, one end of which is rotatably coupled to the coupling part.

At this time, according to one feature of the present invention, when the wing is folded in the direction of the protrusion, a space is formed between the protrusion and the wing, and a plurality of injection holes are formed on the surface of the coupling part exposed through the space. can

According to another feature of the present invention, the cover further includes a protrusion formed to protrude to have a predetermined area in the center of the front surface of the coupling portion, and a control knob formed on the front surface of the protrusion, in conjunction with the rotation of the control knob. The wing portion may be rotated.

According to another feature of the present invention, it may further include a band wound along the circumference of the outer circumferential surface of the protrusion and in frictional contact with one side of the wing portion.

According to another feature of the present invention, it may further include a plurality of teeth respectively formed on the contact surface of the protrusion and the wing portion.

According to the shower head according to the present invention, by folding or unfolding the wings as necessary, it is possible to adjust the spray area of the discharged water stream.

In addition, according to the shower head according to the present invention, by providing a plurality of wings that can be respectively folded or unfolded on the front surface of the cover, it is possible to arouse consumer interest with a unique appearance compared to the prior art.

1 is a perspective view of a shower head according to an embodiment of the present invention;
Figure 2 is an exploded perspective view of Figure 1;
Fig. 3 is a cross-sectional view of Fig. 1;
4 to 7 are diagrams of a use state of a shower head according to an embodiment of the present invention.
8 and 9 are diagrams of a state of use of a shower head according to another embodiment of the present invention.
10 to 17 are diagrams in use of a shower head according to another embodiment of the present invention.

Hereinafter, embodiments of the present invention will be described in detail with reference to the accompanying drawings. However, the embodiments described below are only for explaining in detail enough that a person of ordinary skill in the art to which the present invention pertains can easily implement the invention, which limits the protection scope of the present invention. doesn't mean And in describing various embodiments of the present invention, the same reference numerals will be used for components having the same technical characteristics.

1 to 7 , in the shower head 100 according to an embodiment of the present invention, one side is connected to the shower hose and a plurality of injection holes 330 are provided on the other side, and a stream of water through the injection hole 330 is provided. It is possible to control the spray area of

Controlling the spray area of the water stream may be implemented by changing the arrangement of at least some of the plurality of spray holes 330 . For example, if the plurality of nozzles 330 are divided into a first injection hole group and a second injection hole group and the arrangement shape of one injection hole group can be changed, the injection area can be expanded or reduced.

To this end, the plurality of injection holes 330 are formed to have a predetermined area on one side of the first injection hole group and a first injection hole group formed to have a predetermined area on the other side of the shower head 100, and the second injection hole group is formed to have a changeable arrangement shape. It may include a group of nozzles.

In this case, the first injection hole group is disposed in the center of the other side of the shower head 100, the second injection hole group is at least one disposed outside the first injection hole group, and the second injection hole group rotates and moves to adjust the spray area. can

In addition, the first injection hole group is formed on the surface of the protrusion 311 which is formed to protrude to have a predetermined area on the other side of the shower head 100, and the second injection hole group is disposed along the outer circumferential direction of the first injection hole group, respectively. It is formed on a plurality of wing portions 320 formed to have a predetermined area, and each of the plurality of wing portions 320 may be configured to be rotatably movable around one end of each of the wing portions. In this case, the protrusion 311 may be formed in a circular shape, and the wing portion 320 may be formed in an arc shape having a predetermined radius of curvature and a length.

Hereinafter, an example of a specific configuration of the shower head 100 according to an embodiment of the present invention will be described in more detail with reference to FIGS. 1 to 7 .

The shower head 100 may include a main body 200 to which a shower hose is connected, and a cover 300 coupled to the upper front surface of the main body 200 and through which a plurality of injection holes 330 are formed. Of course, it is of course also possible to integrally mold the shower head without a structure in which the body 200 and the cover 300 are separately configured and combined.

The main body 200 is formed in the form of a hollow pipe so that the user can easily grip it, and the handle portion 210 to which the shower hose is connected at the bottom, and the handle portion 210 is bent forward from the upper end to expand the width. and a head part 220 .

A space may be formed in the inside of the head 220 , the front may be opened to form a discharge port 221 , and the rear surface of the head 220 may have a rounded curved surface. A coupling protrusion 222 is formed to protrude forward along the circumference of the discharge port 221 on the front surface of the head unit 220 , and an inner flange part 223 having a predetermined width along the inner circumferential surface of the coupling protrusion 222 is inside. is formed to protrude, and a step 224 is formed along the outer circumferential surface of the coupling protrusion 222 . Although not shown in the drawings, if necessary, a circular plate-shaped watering plate having a plurality of through-holes formed thereon may be coupled to the front surface of the inner flange part 223 .

The cover 300 is coupled to the outlet 221 of the front of the head 220 of the main body 200 . The cover 300 may include a coupling part 310 coupled to the front surface of the discharge port 221 , and a plurality of wing parts 320 having one end rotatably coupled along the front edge of the coupling part 310 . .

The coupling part 310 includes a protrusion 311 protruding from the center of the front surface and an extension 312 extending outwardly along the periphery of the rear end of the protrusion 311 . A bent portion 313 bent backward from the outer edge of the extension portion 312 is formed, and the bent portion 313 is a step 224 on the outside of the outlet 221 when the main body 200 and the cover 300 are combined. is attached to

The body 200 and the cover 300 may be coupled by a screw coupling method, in which case a screw thread is formed on the outer circumferential surface of the coupling protrusion 222, and a screw groove may be formed on the inner circumferential surface of the bent portion 313 corresponding thereto. have. In addition, it is also possible that the body 200 and the cover 300 are coupled by an interference fit method, or coupled in a manner such as adhesion or fusion bonding. In addition, an O-ring may be interposed between the body 200 and the cover 300 to prevent water leakage.

A plurality of injection holes 330 are formed on the front surface of the protrusion 311 . Hereinafter, the plurality of injection holes 330 formed on the protrusion will be referred to as a 'first injection hole group'.

A plurality of wing parts 320 are disposed along the outer circumference of the protrusion 311 , and each wing part 320 has a rotatable structure. That is, one end of the plurality of wing units 320 is rotatably coupled to the front surface of the extension unit 312 , and a plurality of injection holes 330 are formed on the front surface of each wing unit 320 . Hereinafter, the plurality of injection holes 330 formed in the wing portion 320 will be referred to as a 'second injection hole group'.

A plurality of hollow bosses 314 are protruded along the outer periphery of the protrusion 311 on the front surface of the extended part 312 , and the hollow boss 314 is inserted and coupled to the rear surface of the wing part 320 so that the coupling hole 321 is coupled thereto. ) is formed through When the wing part 320 is mounted on the extended part 312 , the hollow boss 314 of the extended part 312 is inserted and coupled to the coupling hole 321 of the wing part 320 , and the coupling hole 321 is inserted to prevent water leakage. ) and an O-ring 315 may be interposed between the hollow boss 314 .

A space is formed inside the wing 320 , and the space of the wing 320 communicates with the space inside the head 220 and the handle 210 through the hollow boss 314 . Accordingly, the water supplied to the handle portion 210 and the head portion 220 through the shower hose is sprayed through the injection hole 330 of the protrusion 311, and at the same time, the wing portion 320 through the hollow boss 314. It flows into the inside and is also sprayed through the injection hole 330 of the wing part 320 .

The protrusion 311 and the plurality of wings 320 may have various shapes. For example, the protrusion 311 is formed in a circular shape having a predetermined area, and the plurality of wings 320 are formed in a predetermined width, length and thickness. It can be formed as an arc-shaped block having

The inner surface of the wing part 320 may be formed of a curved surface having a predetermined curvature. In this case, when the wing part 320 is completely folded in the direction of the protrusion 311 , the wing part 320 is the outer circumferential surface of the protrusion 311 . may be aligned along the circumference of the protrusion 311 in a slightly spaced apart state. Alternatively, the inner surface of the wing part 320 may be in close contact with the outer circumferential surface of the protrusion 311 , and in this case, the protrusion 311 serves as a stopper for controlling the rotation of the wing part 320 .

In addition, when the wing part 320 is completely folded in the direction of the protrusion 311 , the outer surface of the wing part 320 is the extended part so that the outer surface of the wing part 320 is aligned along the edge of the extended part 312 . It may be formed of a curved surface having a curvature corresponding to the curvature of the edge of 312 .

On the other hand, although an example in which the thickness of the wing part 320 is formed larger than the thickness of the protrusion 311 is shown in the drawing, this is only an example, and the shape of the wing part 320 and the protrusion 311, the wing part 320 ) number, width, length, and thickness may be appropriately selected as needed.

4 to 7 are diagrams illustrating a state of use of a shower head according to an embodiment of the present invention. 4 to 7 , in the shower head according to an embodiment of the present invention, the spray area of the water stream through the plurality of spray holes 330 can be adjusted. For example, when folding the plurality of wings 320 on the outer circumferential surface of the protrusion 311 as shown in FIG. 4 , the plurality of injection holes 330 draw concentric circles with different radii around the center of the protrusion 311 and , at this time, the area of the outermost concentric circle forms the minimum injection area A1 of the water stream.

After that, when the wing portion 320 is rotated and spread outward, the spray area of the water stream is gradually increased. For example, when the plurality of wings 320 are completely spread out in a cross shape as shown in FIG. 5 , the area connecting the tip injection holes 330 of the spread wings 320 forms the maximum injection area A2 . .

At this time, the arrangement form of the injection holes 330 of the first injection port group formed in the protrusion 311 is fixed, but the arrangement form of the injection holes 330 of the second injection port group can be changed by the rotation of the wing portion 320 . have. For example, when the plurality of wings 320 are folded on the protrusion 311 as shown in FIG. 4 , the injection holes 330 of the second injection hole group are arranged to have concentric circles. In addition, as shown in FIG. 5 , when the upper, lower, left, and right wing portions 320 in the drawing are spread outward by 90°, the injection holes 330 of the second injection hole group are protruding portions 311 along the curvature of the wing portion 320 . are arranged to extend in the vertical and horizontal directions with respect to the

On the other hand, as shown in FIG. 6 , the wing parts 320 arranged on the left and right in the drawing are folded inward and aligned along the circumference of the protrusion 311 , and the wing parts 320 arranged up and down are folded outward. Rotated by 90 °, or as shown in FIG. 7 , the wings 320 arranged vertically in the drawing are folded and arranged along the circumference of the protrusion 311 , and the wings 320 are arranged left and right. They can be unfolded by rotating them 90° outward. At this time, some of the injection holes 330 of the second injection hole group are arranged on a concentric circle, and the rest are aligned in the vertical or horizontal direction.

8 to 9 are diagrams showing the use of a shower head according to another embodiment of the present invention.

In the shower head according to the present invention, specifications such as the width and length of the wing portion 320 may be appropriately selected as needed. For example, the shower head 100a according to another embodiment of the present invention is longer than the wing portion 320 of the embodiment of the present invention described with reference to FIGS. 1 to 7, as shown in FIGS. 8 and 9 . may include a longer wing portion 320a.

At this time, even when the wing portion 320a is folded toward the protrusion 311 , the inside of the wing portion 320a is caught on the outside of the other adjacent wing portion 320a, and close to or close to the outer circumferential surface of the protrusion 311 . not fully folded When all of the plurality of wing parts 320a are folded, a plurality of space parts 322 are partitioned along the circumference of the protrusion 311 by a pair of adjacent wing parts 320a and the protrusion 311, The protrusion 311 and the plurality of wing portions 320a form an overall pinwheel shape (or flower shape) in appearance.

At this time, at least one of the wing portions 320a folded close to the protrusion 311 may be spread outward to expand the spraying area of the water stream. For example, FIG. 9 shows a state in which four wing parts 320a are spread in a cross shape, where the number of wing parts 320a and the extent to which the wing parts 320a are spread (wing parts 320a). It goes without saying that the angle of rotation) may be appropriately selected according to need.

10 to 13 are diagrams of a shower head in use according to another embodiment of the present invention, and FIGS. 10 and 11 show an example of a shower head 100b having two wings 320b, and FIG. 12 and FIG. 13 shows an example of a shower head 100c having three wing portions 320c.

As shown in FIGS. 10 to 13 , the number of wing portions 320b and 320c may be appropriately selected as necessary.

In addition, FIGS. 10 to 13 show a state in which the inner side of the wing parts 320b and 320c is aligned along the circumference of the protrusion 311 when the two or three wing parts 320b and 320c are completely folded, On the other hand, as in the embodiment shown in FIG. 8 , the inner portion of the wing portions 320b and 320c is aligned along the circumference of the protrusion 311 and the remaining portion may be spaced apart from the protrusion 311 by a predetermined interval outside of course. .

On the other hand, in the embodiments of the present invention, a separate stopper 340 may be provided to limit the outward rotation angle of the wing portions 320 , 320a , 320b and 320c .

As an example, when the wing parts 320b and 320c move out of the protrusion 311 and rotate to the outside of the extended part 312 to limit the maximum rotation angle of the wing parts 320b and 320c, the extended part 312 . A stopper portion 340 may be formed on one side of the front surface of the . At this time, the stopper portion 340 is spaced a predetermined distance from one side of the hollow boss 314 to which one end of the wing portion 320b is rotatably coupled, as shown in FIG. It may be formed in the form of a protruding rib. In this case, as shown in FIG. 11 , one side of the wing part 320b is caught by the stopper part 340 when the wing part 320b rotates (counterclockwise rotation in the drawing), and further rotation is restricted.

As another example, the stopper part 340 may be formed in the shape of a triangular locking protrusion adjacent to the front edge of the extension part 312 as shown in FIG. 12 . For example, the stopper portion 340 may be formed in the form of a clasp of a right-angled triangle as a whole. When the wing portion 320c rotates to the outside of the extension portion 312 and unfolds, as shown in FIG. 13 , the wing portion ( One side of 320c is supported on the vertical surface of the stopper unit 340 to limit the rotation of the stopper unit 340 . When the wing part 320c is folded, the end of the wing part 320c may be supported on the inclined surface of the stopper part 340, and as another example, instead of the inclined surface of the stopper part 340, the end of the wing part 320c. A concave curved surface corresponding to the curvature may be formed. The stopper portion 340 in the form of a protrusion may have a shape other than a triangle.

14 to 17 are diagrams of a shower head in use according to another embodiment of the present invention.

14 to 17 , the shower head according to embodiments of the present invention may include a control knob 400 capable of simultaneously folding the plurality of wings 320a inward or unfolding them outward. . For example, the control knob 400 is rotatably provided on the front surface of the protrusion 311 so that the rotation angle of the wing portion 320a can be adjusted according to the rotation angle of the control knob 400 .

As shown in FIGS. 8 and 9 , the wing portion 320a is not fully folded to the extent of being close to or in close contact with the outer circumferential surface of the protrusion 311 even when folded toward the protrusion 311 , and a pair of adjacent wing portions 320a ) may be formed to a size sufficient to form a space 322 between the protrusion 311 and the wing portion 320a by hanging on the outside of the other one. In this case, a plurality of injection holes 330 may be formed on the surface of the extension portion 312 exposed to the outside through the space portion 322 , and accordingly, the injection area in the state before the wing portion 320a is expanded. It can be widened and the spray density can be increased.

A structure in which the wing part 320 rotates in conjunction with the control knob 400 can be applied in various ways, and the control knob 400 is formed on the front surface of the protrusion 311 as shown in FIGS. 14 and 15 , , When teeth 410 and 323 are formed on the contact surface of the outer circumferential surface of the protrusion 311 and the wing 320, respectively, and the protrusion 311 and the wing 320 mesh with each other, when rotating the control knob 400, the protrusion ( 311) and the wing portion 320 may be rotated together. At this time, in order to limit the rotation angle of the wing part 320 , the teeth 323,410 may be formed only by a predetermined angle on the contact surface of the protrusion 311 of the wing part 320 , or the outer peripheral surface of the protrusion 311 .

In addition, as shown in FIGS. 16 and 17, a band 420 of a material with strong frictional force is wound around the outer peripheral surface of the protrusion 311, so that one side of the wing 320 is rubbed with the band 420, thereby adjusting When the protrusion 311 is rotated by the knob 400, the wing portion 320 that receives the friction force from the band 420 may be rotated.

Although not shown in the drawings, it is needless to say that a separate gear device which meshes with the rotation shaft of the protrusion 311 and the rotation shaft of the wing part 320 may be provided, respectively.

Although the embodiments of the present invention have been described above, it is understood that those of ordinary skill in the art to which the present invention pertains may make various modifications without departing from the scope of the claims of the present invention.

100,100a,100b,100c : shower head
200: body 210: handle part
220: head 221: outlet
300: cover 310: coupling part
311: protrusion 312: extension
313: bent part 314: hollow boss
320, 320a, 320b, 320c: Wings
321: coupling hole 330: injection hole
340: stopper 400: control knob

Claims (20)

In a shower head in which one side is connected to the shower hose and a plurality of spray holes are provided on the other side,
A shower head capable of controlling the spray area of the water stream through the plurality of spray holes. The method according to claim 1,
A shower head, characterized in that it is possible to change the arrangement of at least some of the plurality of injection holes. 3. The method according to claim 2,
The plurality of nozzles includes a first group of nozzles formed to have a predetermined area on the other side of the shower head, and a second group of nozzles formed to have a predetermined area on one side of the first group of injection holes and capable of changing the arrangement shape A shower head, characterized in that. 4. The method according to claim 3,
The first injection hole group is disposed in the center of the other side of the shower head, the second injection hole group is at least one disposed outside the first injection hole group, and the second injection hole group rotates and moves to adjust the spray area A shower head, characterized in that it becomes. 5. The method according to claim 4,
The first group of nozzles is formed on the surface of the protrusion formed to protrude to have a predetermined area on the other side of the shower head, and the second group of injection holes are disposed along the outer circumferential direction of the first group of injection holes, each having a predetermined area. A shower head, characterized in that it is formed on a plurality of wing portions formed, wherein each of the plurality of wing portions is rotatable about one end of the axis. 6. The method of claim 5,
The shower head, characterized in that the protrusion is formed in a circular shape, and the wing portion is formed in an arc shape having a predetermined radius of curvature and a length. The method according to claim 1 or 2,
The shower head includes a body having one end connected to the shower hose and a discharge port formed at the other end, and a cover coupled to the discharge port and formed with a plurality of injection ports. 8. The method of claim 7,
The plurality of nozzles includes a first group of nozzles formed to have a predetermined area on the front surface of the cover, and a second group of nozzles formed to have a predetermined area on one side of the first group of nozzles and capable of changing the arrangement shape Features a shower head. 9. The method of claim 8,
The cover includes a coupling portion coupled to the discharge port and having the first injection hole group formed in the center thereof, and disposed along the outer circumferential direction of the first injection hole group, one end of which is rotatably coupled to the coupling portion, and the second A shower head, characterized in that it includes a plurality of wings in which a group of nozzles is formed. 10. The method of claim 9,
The coupling portion includes a protrusion formed to protrude from the center of the front surface, and an extension formed to extend along the periphery of the protrusion, the first injection hole group is formed in the protrusion, and the plurality of wings are formed along the perimeter of the protrusion. A shower head, characterized in that one end is rotatably coupled to the extension. 11. The method of claim 10,
The coupling part further includes a plurality of hollow bosses protruding from the extension part, and the hollow boss is coupled to one end of the wing part. 11. The method of claim 10,
The shower head, characterized in that the protrusion is formed in a circular shape, and the wing portion is formed in an arc shape. 13. The method of claim 12,
When the wing portion is folded, the inner surface of the wing portion is in close contact with the outer circumferential surface of the protrusion, and the outer surface of the wing portion is aligned along the rim of the extended portion. 12. The method of claim 11,
In order to limit the rotation angle of the wing portion, the shower head, characterized in that the rib-shaped stopper is formed to protrude from the front surface of the expansion portion spaced apart from one side of the hollow boss. 11. The method of claim 10,
In order to limit the rotation angle of the wing portion, the shower head, characterized in that the stopper portion in the form of a locking jaw protrudes adjacent to the front edge of the extension portion. a body having a shower hose connected to one end and a discharge port formed at the other end; and
It is coupled to the discharge port and includes a cover in which a plurality of injection ports are formed,
The cover includes a coupling part coupled to the front surface of the discharge port, and a plurality of wing parts disposed along the front edge of the coupling part, one end of which is rotatably coupled to the coupling part. 17. The method of claim 16,
When the wing is folded in the direction of the protrusion, a space is formed between the protrusion and the wing, and a plurality of injection holes are formed on a surface of the coupling part exposed through the space. 18. The method of claim 16 or 17,
The cover further includes a protrusion formed to protrude to have a predetermined area in the center of the front surface of the coupling portion, and a control knob formed on the front surface of the protrusion, wherein the wing portion is rotated in conjunction with the rotation of the control knob. shower head with 19. The method of claim 18,
The shower head further comprising a band wound along the outer circumference of the protrusion and in frictional contact with one side of the wing. 19. The method of claim 18,
The shower head further comprising a plurality of teeth respectively formed on the contact surface of the protrusion and the wing portion.

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