Spray head and washing equipment

Abstract

The invention relates to the technical field of washing equipment, and discloses a spraying head and washing equipment, the spraying head comprises a water passing part, a water guiding part, a reflecting part and a connecting part, the water passing part is internally provided with a water passing channel, and the top and the bottom of the water passing part are respectively provided with a water inlet and a water outlet which are communicated with the water passing channel; the water guide part is connected to the bottom of the water passing part and is provided with a divergent water guide surface which is formed by extending downwards and outwards along the edge of the water outlet; the reflecting part is opposite to the water outlet and is arranged below the water passing part, and the peripheral edge of the reflecting part and the divergent water guide surface are arranged at an interval; and the reflecting part is connected with the water guide part and / or the water passing part through the connecting part. The spraying head is provided with the reflecting part and the water guiding part, and the umbrella-shaped spraying effect of fluid is guaranteed through the coupling effect of the water flow reflecting characteristic and the coanda effect; and the spray header is simple in structure, is of an integrally formed structure, can be directly stripped from top to bottom without an inverted buckling structure, and is easy to manufacture.

Description

Technical Field

[0001] The present invention relates to the technical field of washing equipment, and particularly relates to a spray head and a washing equipment. Background Art

[0002] During the water inlet process of a washing machine, generally a spray head is provided at the end of the water inlet pipe. The spray head can wet the clothes inside the washing machine when water is inlet, so as to enhance the washing effect. In order to increase the dispersion area of the water flow sprayed by the spray head, an umbrella-shaped nozzle can be used to spray an umbrella-shaped water curtain.

[0003] The existing umbrella-shaped nozzles utilize complex structures inside the nozzles. Through diversion at a certain angle, high-pressure water flow is evenly distributed radially, and then the water flow is sprayed out in an umbrella shape by a reflection method. The internal structures of nozzles with this kind of structure are generally relatively complex and difficult to process. Even the simplified nozzles are at least composed of more than two components. Therefore, most of these nozzles are metal nozzles, and some of the plastic nozzles are also mostly atomizing nozzles, with complex structures and unable to meet the requirements of some working conditions. Summary of the Invention

[0004] Based on the technical problems of complex structure and high manufacturing difficulty of the spray head in the prior art, the present invention provides a spray head, which can achieve a good umbrella-shaped spraying effect, has a simple structure, can be integrally formed during the manufacturing process, and is easy to mold and manufacture.

[0005] The present invention provides a spray head, comprising: A water passing part, which has a water passing channel inside. An inlet and an outlet communicating with the water passing channel are respectively provided at the top and bottom of the water passing part; A water guiding part, connected to the bottom of the water passing part, having a gradually expanding water guiding surface extending downward and outward along the edge of the outlet; A reflecting part, opposite to the outlet and arranged below the water passing part. There is a spaced arrangement between the outer peripheral edge of the reflecting part and the gradually expanding water guiding surface; and A connecting part, through which the reflecting part is connected to the water guiding part and / or the water passing part.

[0006] In some embodiments, the upper surface of the reflecting part is a reflecting surface, and the reflecting surface is a flat surface or a conical surface with a central protrusion.

[0007] In some embodiments, the reflecting part has a first inclined side surface formed by inclining inward along the outer edge of the upper surface of the reflecting part. A first acute angle structure is formed between the outer edge of the upper surface of the reflecting part and the first inclined side surface.

[0008] In some embodiments, the bottom end of the water guiding portion has a second inclined side surface formed by inclining upward and outward along the lower edge of the gradually expanding water guiding surface, and the lower edge of the gradually expanding water guiding surface and the second inclined side surface form a second acute angle structure.

[0009] In some embodiments, the diameter of the reflecting portion is smaller than the diameter of the water outlet.

[0010] In some embodiments, the lower part of the connecting portion is connected to the side surface of the reflecting portion, and the upper part is connected to the inner wall of the water passing portion; the lower part of the connecting portion extends outward and is connected to the inner wall of the water guiding portion.

[0011] In some embodiments, a step structure is provided on the inner wall of the water passing portion.

[0012] In some embodiments, the central axis of the water passing portion is coaxially arranged with the central axis of the gradually expanding water guiding surface.

[0013] In some embodiments, the water guiding portion is inclined and connected to the bottom end of the water passing portion, so that the plane or arc surface where the lower edge of the gradually expanding water guiding surface is located forms an included angle with the central axis of the water passing portion.

[0014] The present invention further includes a washing device, which includes the above-mentioned shower head.

[0015] Compared with the prior art, the advantages and positive effects of the present invention are: The above-mentioned shower head has a reflecting portion and a water guiding portion, and utilizes the coupling effect of the water flow reflection characteristic and the Coanda effect to ensure the umbrella-shaped spraying effect of the fluid; and the structure of the shower head is simple, which is an integrally formed structure, can be directly molded up and down without an undercut structure, and is easy to manufacture. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the following will briefly introduce the drawings required for the description of the embodiments. Obviously, the drawings in the following description are only some embodiments of the present invention. For those of ordinary skill in the art, other drawings can be obtained based on these drawings without creative efforts.

[0017] Figure 1 is a three-dimensional view of the shower head in Embodiment 1 of the present invention; Figure 2 is a three-dimensional view of the shower head in the top view direction in Embodiment 1 of the present invention; Figure 3 is a top view of the shower head in Embodiment 1 of the present invention; Figure 4 is Figure 3 the cross-sectional view taken along line A-A in Figure 5Schematic diagram of the first acute angle structure and the second acute angle structure of the spray head in the first embodiment of the present invention; Figure 6 is Figure 3 Cross-sectional view taken along line B-B in; Figure 7 Three-dimensional view of the spray head in the second embodiment of the present invention; Figure 8 Three-dimensional view of the spray head in the second embodiment of the present invention in the top-down direction; Figure 9 Top view of the spray head in the second embodiment of the present invention; Figure 10 is Figure 9 Cross-sectional view taken along line C-C in; Figure 11 Schematic diagram of the first acute angle structure and the second acute angle structure of the spray head in the second embodiment of the present invention; Figure 12 is Figure 9 Cross-sectional view taken along line D-D in; Explanation of reference numerals: Spray head 100; Water passage part 110; water passage 111; water inlet 112; water outlet 113; step structure 114; Water guiding part 120; gradually expanding water guiding surface 121; second inclined side 122; Reflection part 130; reflection surface 131; first inclined side 132; Connection part 140; Spray head 200; Water passage part 210; water passage 211; water inlet 212; water outlet 213; step structure 214; Water guiding part 220; gradually expanding water guiding surface 221; second inclined side 222; Reflection part 230; reflection surface 231; first inclined side 232; Connection part 240. Detailed implementation manners

[0018] Next, the technical solutions in the embodiments of the present invention will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without making creative efforts belong to the scope of protection of the present invention.

[0019] In the description of the present invention, it should be understood that the orientation or positional relationship indicated by the terms "center", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", etc. is based on the orientation or positional relationship shown in the drawings. It is only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be construed as a limitation to the present invention.

[0020] In the description of the present invention, it should be noted that unless otherwise clearly specified and limited, the terms "installed", "connected", and "connected" should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or an integral connection. For those of ordinary skill in the art, the specific meanings of the above terms in the present invention can be understood according to specific circumstances. In the description of the above embodiments, specific features, structures, materials, or characteristics can be combined in a suitable manner in any one or more embodiments or examples.

[0021] The terms "first" and "second" are only used for descriptive purposes and should not be construed as indicating or implying relative importance or implicitly specifying the quantity of the indicated technical features. Thus, the features defined with "first" and "second" may explicitly or implicitly include one or more of such features. In the description of the present invention, unless otherwise stated, the meaning of "a plurality" is two or more. Embodiment 1

[0022] Referring to Figures 1 - 6 , it is an embodiment of the spray head 100 of the present invention. The spray head can evenly spray water or other liquids within a certain range to improve the coverage effect or mixing uniformity. In this embodiment, the water flow is taken as an example for illustration.

[0023] The spray head 100 is an integrally formed structure, including a water passing part 110, a water guiding part 120, a reflecting part 130, and a connecting part 140.

[0024] The interior of the water passing part 110 has a water passing channel 111. An inlet 112 communicating with the water passing channel 111 is provided at the top of the water passing part 110, and an outlet 113 communicating with the water passing channel 111 is provided at the bottom of the water passing part 110. In this embodiment, the water passing part 110 is of a straight tube type structure, and its cross-section can be circular, elliptical, etc.

[0025] The water guiding part 120 is connected to the bottom of the water passing part 110 and has a gradually expanding water guiding surface 121 formed by extending downward and outward along the edge of the water outlet 113. The gradually expanding water guiding surface 121 is the inner wall surface of the water guiding part 120. The gradually expanding water guiding surface 121 is a conical surface, and the outer wall surface of the water guiding part 120 is also a conical surface. The water guiding part 120 as a whole forms a conical structure. The central axis of the water passing part 110 is coaxially arranged with the central axis of the gradually expanding water guiding surface 121, that is, the central axis of the water passing part 110 is coaxially with the central axis of the water guiding part 120.

[0026] The reflecting part 130 is arranged below the water passing part 110 and is oppositely arranged with the water outlet 113. There is a spaced arrangement between the outer periphery of the reflecting part 130 and the gradually expanding water guiding surface 121, that is, an annular water flow channel is formed between the outer periphery of the reflecting part 130 and the gradually expanding water guiding surface 121. The upper surface of the reflecting part 130 is a reflecting surface 131. After the water flowing out from the water outlet 113 of the water passing part 110 is reflected by the reflecting surface 131 of the reflecting part 130, it flows to the gradually expanding water guiding surface 121 through the surrounding annular water flow channel and finally flows downward along the gradually expanding water guiding surface 121.

[0027] The reflecting part 130 is connected to the water guiding part 120 and the water passing part 110 through the connecting part 140. In this embodiment, the connecting part 140 is a rib structure and there are two of them, which are connected between the reflecting part 130 and the water guiding part 120 and the water passing part 110, making the spray head 100 form an integral structure.

[0028] During the water inlet spraying process, the water enters from the water inlet 112 of the water passing part 110, flows through the water passing channel 111 and the water outlet 113, falls on the reflecting part 130, and is then reflected by the reflecting surface 131 of the reflecting part 130 to the gradually expanding water guiding surface 121. During the process of flowing along the surface flow path of the gradually expanding water guiding surface 121, since the water flow is dispersed and flows to a certain extent along the outer gradually expanding water guiding surface 121, affected by the Coanda effect, the water flow will automatically make up for the interruption of the spray water flow caused by the connecting part 140, and finally a uniform umbrella-shaped spray effect is formed at the end of the gradually expanding water guiding surface 121. During this process, since the water flow undergoes multiple speed reductions, its influence by the Coanda effect is extremely obvious, so it can overcome the water flow separation situation caused by the connecting part 140, and finally a water surface with uniform distribution and complete umbrella-shaped water curtain is formed.

[0029] The above-mentioned spray head 100 has a reflecting part 130 and a water guiding part 120, and uses the coupling effect of the water flow reflection characteristic and the Coanda effect to ensure the umbrella-shaped spray effect of the fluid; and the spray head 100 has a simple structure, is an integrally formed structure, can be directly demolded up and down and has no undercut structure, and is easy to manufacture.

[0030] In this embodiment, the reflecting surface 131 of the reflecting part 130 is a plane. In another embodiment, the reflecting surface 131 can also be a conical surface with a central protrusion, or the reflecting surface 131 is an arc surface.

[0031] See Figure 5 Figure 5 , the reflecting part 130 has a first inclined side surface 132 formed by inclining inward along the outer edge of the upper surface of the reflecting part 130. The outer edge of the upper surface of the reflecting part 130 and the first inclined side surface 132 form a first acute angle structure. That is, the included angle α between the upper surface of the reflecting part 130 and the first inclined side surface 132 is an acute angle. Since the water flow may flow down along the side surface of the reflecting part 130 due to the Coanda effect at the outer edge of the upper surface of the reflecting part 130, destroying the water outlet effect, the reflecting part 130 is provided with a first acute angle structure to avoid destroying the water outlet effect due to the Coanda effect.

[0032]

[0032] , the bottom end of the water guiding part 120 has a second inclined side surface 122 formed by inclining upward and outward along the lower edge of the gradually expanding water guiding surface 121. The lower edge of the gradually expanding water guiding surface 121 and the second inclined side surface 122 form a second acute angle structure. That is, the included angle β between the gradually expanding water guiding surface 121 and the second inclined side surface 122 is an acute angle. Since the lower edge of the water guiding part 120 may also cause the water flow to flow towards the outer side wall of the water guiding part 120 due to the Coanda effect, destroying the water outlet effect, the bottom end of the water guiding part 120 is provided with a second acute angle structure to avoid destroying the water outlet effect due to the Coanda effect.

[0033] As Figure 3 Figure 3 shown, in this embodiment, the diameter of the reflecting part 130 is smaller than the diameter of the water outlet 113 to reduce the occlusion of the water outlet 113 and ensure the water output. The diameter of the reflecting part 130 can be minimized. On the premise of minimizing the occlusion of the water outlet 113, the umbrella-shaped spraying effect of the fluid is ensured by the coupling effect of the water flow reflection characteristic and the Coanda effect.

[0034] See Figure 6 Figure 6 , the lower part of the connecting part 140 is connected to the side surface of the reflecting part 130, and the upper part is connected to the inner wall of the water passing part 110; the lower part of the connecting part 140 extends outward and is connected to the inner wall of the water guiding part 120. The connecting part 140 is a rib-like structure, and two are symmetrically arranged. The bottom end of the connecting part 140 is flush with the bottom surface of the reflecting part 130.

[0035] A step structure 114 is also provided on the inner wall of the water passing part 110. The step structure 114 plays a positioning role. The water pipe is inserted into the water passing channel 111 from the top of the water passing part 110 and abuts against the step surface of the step structure 114.

[0036] In other embodiments, an internal thread structure may also be provided on the inner wall of the water passing part 110 for threaded connection with the water pipe.

[0037] The present invention also includes a washing device, including the above-mentioned spray head 100. The washing device can be a washing machine, a shoe washing machine, a washing and drying integrated machine, etc. Embodiment 2

[0038] See Figures 7 - 12 , which is another embodiment of the spray head of the present invention. The difference between this embodiment and the first embodiment is that in the spray head 200 of this embodiment, the water guiding part is inclinedly connected to the bottom end of the water passing part, so that the plane or arc surface formed by the lower edge of the gradually expanding water guiding surface is not perpendicular to the central axis of the water passing part. That is, the spray head 200 can spray an inclined umbrella-shaped water curtain. By changing the inclination angle, the purpose of changing the spraying direction can be achieved.

[0039] See Figures 7 - 10 , the spray head 200 is an integrally formed structure, including a water passing part 210, a water guiding part 220, a reflecting part 230 and a connecting part 240.

[0040] The inside of the water passing part 210 has a water passing channel 211. An inlet 212 communicating with the water passing channel 211 is provided at the top of the water passing part 210, and an outlet 213 communicating with the water passing channel 211 is provided at the bottom of the water passing part 210. In this embodiment, the water passing part 210 is a straight cylinder structure, and its cross section can be circular, elliptical, etc.

[0041] The water guiding part 220 is connected to the bottom of the water passing part 210, and has a gradually expanding water guiding surface 221 formed by extending downward and outward along the edge of the outlet 213. The gradually expanding water guiding surface 221 is the inner wall surface of the water guiding part 220. The gradually expanding water guiding surface 221 is an asymmetric conical surface, and the outer wall surface of the water guiding part 220 is also an asymmetric conical surface. The water guiding part 220 as a whole forms an asymmetric conical structure.

[0042] The water guiding part 220 is inclinedly connected to the bottom end of the water passing part 210, so that the plane or arc surface formed by the lower edge of the gradually expanding water guiding surface 221 is not perpendicular to the central axis of the water passing part 210. That is, the spray head 200 can spray an inclined umbrella-shaped water curtain.

[0043] The reflecting part 230 is arranged below the water passing part 210 and is oppositely arranged with the outlet 213. There is a gap between the outer periphery of the reflecting part 230 and the gradually expanding water guiding surface 221, that is, an annular water flow channel is formed between the outer periphery of the reflecting part 230 and the gradually expanding water guiding surface 221. The upper surface of the reflecting part 230 is a reflecting surface 231. The water flowing out of the outlet 213 of the water passing part 210 is reflected by the reflecting surface 231 of the reflecting part 230 and then flows to the gradually expanding water guiding surface 221 through the surrounding annular water flow channel and finally flows downward along the gradually expanding water guiding surface 221.

[0044] The reflecting part 230 is connected to the water guiding part 220 and the water passing part 210 through the connecting part 240. In this embodiment, the connecting part 240 is a rib structure and there are two of them, which are connected between the reflecting part 230 and the water guiding part 220 and the water passing part 210, so that the spray head 200 forms an integral structure.

[0045] During the water inlet spraying process, water flows into through the water inlet 212 of the water passing part 210, flows through the water passing channel 211 and the water outlet 213, falls onto the reflection part 230, and is then reflected by the reflection surface 231 of the reflection part 230 onto the gradually expanding water guiding surface 221. During the process of flowing along the surface flow channel of the gradually expanding water guiding surface 221, since the water flow is dispersed and undergoes a certain degree of flow along the outer gradually expanding water guiding surface 221, affected by the Coanda effect, the water flow will automatically compensate for the interruption of the spraying water flow caused by the connecting part 240, and finally form a uniform umbrella-shaped spraying effect at the end of the gradually expanding water guiding surface 221. During this process, since the water flow undergoes multiple speed reductions, its influence by the Coanda effect is extremely obvious, so it can overcome the water flow separation situation caused by the connecting part 240, and finally form an umbrella-shaped water curtain with a uniform water surface distribution.

[0046] In this embodiment, the reflection surface 231 of the reflection part 230 is a plane. In other embodiments, the reflection surface 231 can also be a conical surface with a central protrusion, or the reflection surface 231 is an arc surface.

[0047] See Figure 11 , the reflection part 230 has a first inclined side surface 232 formed by inclining inward along the outer edge of the upper surface of the reflection part 230, and the outer edge of the upper surface of the reflection part 230 and the first inclined side surface 232 form a first acute angle structure. That is, the included angle γ between the upper surface of the reflection part 230 and the first inclined side surface 232 is an acute angle. Since the edge of the upper surface of the reflection part 230 may also cause the water flow to flow down along the side surface of the reflection part 230 due to the Coanda effect, damaging the water outlet effect, the reflection part 230 is provided with a first acute angle structure to avoid damaging the water outlet effect due to the Coanda effect.

[0048] Furthermore, the bottom end of the water guiding part 220 has a second inclined side surface 222 formed by inclining upward and outward along the lower edge of the gradually expanding water guiding surface 221, and the lower edge of the gradually expanding water guiding surface 221 and the second inclined side surface 222 form a second acute angle structure. That is, the included angle δ between the gradually expanding water guiding surface 221 and the second inclined side surface 222 is an acute angle. Since the lower edge of the water guiding part 220 may also cause the water flow to flow towards the outer side wall direction of the water guiding part 220 due to the Coanda effect, damaging the water outlet effect, the bottom end of the water guiding part 220 is provided with a second acute angle structure to avoid damaging the water outlet effect due to the Coanda effect.

[0049] As Figure 9 shown, in this embodiment, the diameter of the reflection part 230 is smaller than the diameter of the water outlet 213 to reduce the blockage of the water outlet 213 and ensure the water output. The diameter of the reflection part 230 can be minimized as much as possible. On the premise of minimizing the blockage of the water outlet 213, by using the coupling effect of the water flow reflection characteristic and the Coanda effect, the umbrella-shaped spraying effect of the fluid is ensured.

[0050] See Figure 12, the lower part of the connecting portion 240 is connected to the side surface of the reflecting portion 230, and the upper part is connected to the inner wall of the water passing portion 210; the lower part of the connecting portion 240 extends outward and is connected to the inner wall of the water guiding portion 220. The connecting portion 240 is in a rib-like structure, and two are symmetrically arranged. The bottom end of the connecting portion 240 is flush with the bottom surface of the reflecting portion 230.

[0051] As Figure 10 shown, a stepped structure 214 is further provided on the inner wall of the water passing portion 210. The stepped structure 214 plays a positioning role. The water pipe is inserted into the water passing channel 211 from the top of the water passing portion 210 and abuts against the stepped surface of the stepped structure 214.

[0052] In other embodiments, an internal thread structure may also be provided on the inner wall of the water passing portion 210 for threaded connection with the water pipe.

[0053] The above embodiments are only used to illustrate the technical solutions of the present invention, rather than to limit it; although the present invention has been described in detail with reference to the foregoing embodiments, for those of ordinary skill in the art, it is still possible to modify the technical solutions recorded in the foregoing embodiments, or perform equivalent replacements on some of the technical features; and these modifications or replacements do not make the essence of the corresponding technical solutions deviate from the spirit and scope of the technical solutions required to be protected by the present invention.

Claims

1. A sprinkler head, characterized in that, Comprising: A water passage part having a water passage inside, with a water inlet and a water outlet respectively provided at the top and bottom of the water passage part and communicating with the water passage; A water guiding part connected to the bottom of the water passage part, having a gradually expanding water guiding surface formed by extending downward and outward along the edge of the water outlet; A reflecting part opposite to the water outlet and provided below the water passage part, with a gap provided between the outer periphery of the reflecting part and the gradually expanding water guiding surface; And A connecting part, through which the reflecting part is connected to the water guiding part and / or the water passage part.

2. The shower head according to claim 1, wherein The upper surface of the reflecting part is a reflecting surface, and the reflecting surface is a flat surface or a conical surface with a central protrusion.

3. The sprinkler head according to claim 1, wherein, The reflecting part has a first inclined side surface formed by inclining inward along the outer edge of the upper surface of the reflecting part, and a first acute angle structure is formed between the outer edge of the upper surface of the reflecting part and the first inclined side surface.

4. The shower head according to claim 1, characterized in that, The bottom end of the water guiding part has a second inclined side surface formed by inclining upward and outward along the lower edge of the gradually expanding water guiding surface, and a second acute angle structure is formed between the lower edge of the gradually expanding water guiding surface and the second inclined side surface.

5. The sprinkler head according to claim 1, characterized in that, The diameter of the reflecting part is smaller than the diameter of the water outlet.

6. The shower head according to claim 5, characterized in that, The lower part of the connecting part is connected to the side surface of the reflecting part, and the upper part is connected to the inner wall of the water passage part; the lower part of the connecting part extends outward and is connected to the inner wall of the water guiding part.

7. The shower head according to claim 1, characterized in that, A step structure is provided on the inner wall of the water passage part.

8. The shower head according to any one of claims 1-7, characterized in that, The central axis of the water passage part is coaxially arranged with the central axis of the gradually expanding water guiding surface.

9. The shower head according to any one of claims 1 to 7, characterized in that, The water guiding part is inclinedly connected to the bottom end of the water passage part, such that the plane or arc surface where the lower edge of the gradually expanding water guiding surface is located is not perpendicular to the central axis of the water passage part.

10. A washing device, characterized in that, Comprising a spray head according to any one of claims 1 - 9.

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