Water outlet device

Abstract

A water outlet device, comprising a water inlet, a water outlet, and a water outlet channel connecting the water inlet and the water outlet. The water outlet channel is provided with an expanded section, a necked section and a water outlet section which are communicated in sequence in the water outlet direction. The flow-through cross-sectional area of the water outlet channel formed by the expanded section, the necked section and the water outlet section is of an expanded-necked-expanded variable-diameter configuration in the water outlet direction, such that the flow velocity of water decreases, accelerates and decreases in sequence and the pressure decreases so as to release air in water to increase the content of microbubbles or ultramicrobubbles in water, and therefore huge pressure instantaneously released when bubbles collapse and ultrasonic vibration generated thereby are utilized to strip off dirt, improving cleaning power of the water flow on exposed workpieces and ceramic structures. In addition, the present invention has the advantages of water conservation, time saving and labor saving, thereby reducing the frequency of manual scrubbing and improving user experience.

Description

Water outlet device

[0001] Cross-reference to related applications

[0002] The present application claims priority to the Chinese patent application No. 2024223189943, filed on September 23, 2024, entitled “A water outlet device”, and claims priority to it, the content of which is incorporated herein by reference. TECHNICAL FIELD

[0003] The present application relates to the technical field of bubble generating device, and particularly relates to a water outlet device. BACKGROUND

[0004] The bathroom product is in a humid working condition, and the exposed workpiece and ceramic structure are prone to produce yellow dirt. The common cleaning method is to use water flow to impact the yellow dirt. However, the yellow dirt cannot be completely cleaned by water flow impact and flushing, and manual scrubbing is usually required to ensure the cleaning degree of the ceramic structure, thereby easily causing bad user experience. Therefore, it is considered to increase the flushing water pressure and change the cleaning mode of the yellow dirt. SUMMARY

[0005] The purpose of the present application is to provide a water outlet device, and to provide a micro-bubble generating device to improve the cleaning effect of the bathroom product.

[0006] To achieve the above purpose, the present application provides the following technical scheme.

[0007] A water outlet device is provided with a water inlet, a water outlet and a water outlet flow channel connecting the water inlet and the water outlet, the water outlet flow channel is provided with an expansion section, a contraction section and a water outlet section connected in sequence along the water outlet direction, the water passage cross-sectional area of the expansion section increases along the water outlet direction, the water passage cross-sectional area of the contraction section decreases along the water outlet direction, and the water passage cross-sectional area of the water inlet end of the contraction section is not greater than the water passage cross-sectional area of the water outlet end of the expansion section, and the water passage cross-sectional area of the water outlet section is greater than the water passage cross-sectional area of the water outlet end of the contraction section.

[0008] Further, the expansion section includes a first expansion section and a second expansion section arranged in sequence along the water outlet direction, and the water passage cross-sectional area of the first expansion section is smaller than the water passage cross-sectional area of the second expansion section.

[0009] Further, it further includes a water inlet section connected to the first expansion section, the ratio between the radial dimension of the first expansion section and the radial dimension of the water inlet section is 1.2-2, and the ratio between the radial dimension of the second expansion section and the radial dimension of the first expansion section is 1.2-2.

[0010] Further, the ratio between the radial dimension of the water inlet section and the radial dimension of the water outlet section is 0.8-1.2.

[0011] Furthermore, the wall of the contraction section is provided with several guide ribs, which are used to increase the flow velocity or rotation speed of the water.

[0012] Furthermore, the outlet end of the contraction section is provided with a squeezing section, and the ratio of the radial dimension of the inlet section to the axial dimension of the squeezing section is 0.5-1.2.

[0013] Furthermore, several diversion ribs are provided between the extrusion section and the outlet section, and each diversion rib divides the channel inside the extrusion section into several diversion channels.

[0014] Furthermore, it includes an outlet cover and an inlet cover that is sealed to the outlet cover, with an expansion section located on the inlet cover and a contraction section and an outlet section located on the outlet cover.

[0015] Furthermore, one of the water outlet cap and the water inlet cap is provided with a groove, and the other is provided with a protrusion. The water outlet cap and the water inlet cap are connected to each other by a snap-fit ​​between the groove and the protrusion, and a limiting part is provided in the groove to prevent the protrusion from disengaging from the groove.

[0016] Furthermore, the groove includes a first groove segment, one end of which is provided with an opening for the protrusion to enter, and the other end of which is provided with a second groove segment connected to the first groove segment. The width of the first groove segment is smaller than the width of the second groove segment, and the step difference between the first groove segment and the second groove segment constitutes a limiting part.

[0017] The beneficial effects of this invention are:

[0018] 1. The water outlet device proposed in this embodiment includes an inlet, an outlet, and a water outlet channel connecting the inlet and the outlet. The water outlet channel is provided with an expansion section, a contraction section, and an outlet section connected sequentially along the water outlet direction. The water outlet channel formed by the expansion section, contraction section, and outlet section has a variable diameter setting of expansion-contraction-expansion along the water outlet direction, which makes the water flow velocity slow down-accelerate-slow down, and the pressure decreases, thereby releasing air in the water and increasing the content of microbubbles or ultra-microbubbles in the water. Then, the huge pressure bursting when the bubbles burst instantaneously generates ultrasonic vibration to peel off dirt, improve the cleaning power of the water flow on exposed workpieces and ceramic structures, and has the advantages of saving water, time and labor, thereby reducing the frequency of manual washing and improving the user experience.

[0019] 2. The water outlet device proposed in the embodiment of the present invention includes an expansion section comprising a first expansion section and a second expansion section arranged sequentially along the water outlet direction. The cross-sectional area of ​​the first expansion section is smaller than that of the second expansion section, so that the water flow process expands twice, the flow velocity of the water decreases twice, increases the degree of water flow dispersion and turbulence, and increases the trend of water flow pattern change.

[0020] 3. The water outlet device provided by the embodiment of the present application, the wall surface of the contraction section is provided with a plurality of guide ribs to increase the flow speed of water flow in the extrusion section or the rotational movement of water flow, so as to increase the cutting and extruding effect of the extrusion section on water flow.

[0021] The water outlet device provided by the embodiment of the present application, a plurality of flow dividing ribs are arranged between the extrusion section and the water outlet section, the more the number of flow dividing ribs, the more obvious the cutting effect on water flow, and the better the bubble effect generated in water flow. BRIEF DESCRIPTION OF DRAWINGS

[0022] In order to more clearly illustrate the technical solutions in the embodiments of the present application or the prior art, the drawings needed to be used in the embodiments or the prior art description will be briefly introduced. Obviously, the drawings in the following description are only some embodiments of the present application, and other drawings can be obtained by those skilled in the art without any creative effort on the basis of these drawings.

[0023] Fig. 1 is a schematic view of a water outlet device according to the present application;

[0024] Fig. 2 is an exploded view of a water outlet device according to the present application;

[0025] Fig. 3 is an installation schematic view of a water outlet device according to the present application;

[0026] Fig. 4 is a sectional view of a water outlet device according to the present application;

[0027] Fig. 5(A-1) is a schematic view of a water outlet device according to the present application with guide ribs;

[0028] Fig. 5(A-2) is a sectional view of Fig. 5(A-1) along the A-A direction;

[0029] Fig. 5(B-1) is a schematic view of a water outlet device according to the present application with another number of guide ribs;

[0030] Fig. 5(B-2) is a sectional view of Fig. 5(B-1) along the B-B direction;

[0031] Fig. 6(A-1) is a schematic view of a water outlet device according to the present application with rotation starting ribs;

[0032] Fig. 6(A-2) is a sectional view of Fig. 6(A-1) along the A-A direction;

[0033] Fig. 6(B-1) is a schematic view of a water outlet device according to the present application with another number of rotation starting ribs;

[0034] Fig. 6(B-2) is a sectional view of Fig. 6(B-1) along the B-B direction;

[0035] Figure 7(A-1) is a schematic view of a water outlet device of the present application with the flow distribution ribs arranged at the water outlet end of the extrusion section;

[0036] Figure 7(A-2) is a sectional view along A-A of Figure 7(A-1);

[0037] Figure 7(B-1) is a schematic view of a water outlet device of the present application with another number of flow distribution ribs;

[0038] Figure 7(B-2) is a sectional view along B-B of Figure 7(B-1);

[0039] Figure 7(C-1) is a schematic view of a water outlet device of the present application with yet another number of flow distribution ribs;

[0040] Figure 7(C-2) is a sectional view along C-C of Figure 7(C-1);

[0041] Figure 8(A-1) is a schematic view of a water outlet device of the present application with the flow distribution ribs arranged at the water inlet end of the water outlet section;

[0042] Figure 8(A-2) is a sectional view along A-A of Figure 8(A-1);

[0043] Figure 8(B-1) is a schematic view of a water outlet device of the present application with another number of flow distribution ribs;

[0044] Figure 8(B-2) is a sectional view along B-B of Figure 8(B-1);

[0045] Figure 9 is an enlarged view of the portion A of Figure 3;

[0046] In the figures, 10 is an expansion section, 101 is a first expansion section, 102 is a second expansion section, 20 is a contraction section, 30 is a water outlet section, 40 is a water inlet section, 50 is an extrusion section, 601 is a guide rib, 602 is a rotation-starting rib, 70 is a flow distribution rib, 80 is a water outlet cover, 901 is a first groove section, 902 is a second groove section, 100 is a positioning groove, 110 is a limiting portion, 120 is a water inlet cover, 130 is a protrusion, 1301 is a guide surface, 1302 is an abutting portion, 140 is a sealing ring, 150 is a water inlet, and 160 is a water outlet. DETAILED DESCRIPTION

[0047] The present application will be described in detail below with reference to Figures 1-9.

[0048] The water outlet device is provided with a water inlet 150, a water outlet 160 and a water outlet flow channel connecting the water inlet 150 and the water outlet 160, the water outlet flow channel is provided with an expansion section 10, a contraction section 20 and a water outlet section 30 connected in sequence along the water outlet direction, the water passing section area of the expansion section 10 increases along the water outlet direction, the water passing section area of the contraction section 20 decreases along the water outlet direction, and the water passing section area of the water inlet end of the contraction section 20 is not greater than the water passing section area of the water outlet end of the expansion section 10, and the water passing section area of the water outlet section 30 is greater than the water passing section area of the water outlet end of the contraction section 20.

[0049] In use, the water flow sequentially flows through the expansion section 10, the contraction section 20 and the water outlet section 30, so that the flow rate of the water flow presents a change trend of slowing down-accelerating-slowing down, air in the water is reduced, the content of micro-bubbles or super-micro-bubbles in the water is increased, the instantaneous huge pressure and ultrasonic vibration generated when the bubbles burst are utilized to quickly strip off dirt, the cleaning force of the water flow on exposed workpieces and ceramic structures is improved, and the water saving, time saving and labor saving advantages are simultaneously achieved, and then the frequency of manual washing is reduced, so as to improve the user experience.

[0050] In the embodiment, the expansion section 10 includes a first expansion section 101 and a second expansion section 102 arranged in sequence along the water outlet direction, the water passing section area of the first expansion section 101 is smaller than the water passing section area of the second expansion section 102, so that the water flow is expanded twice during the flow process, the flow rate of the water flow is reduced twice, the dispersion and disorder degree of the water flow is increased, and the change trend of the flow state of the water flow is increased.

[0051] In the embodiment, as shown in FIG. 4, the water outlet device further includes a water inlet section 40 connected to the first expansion section 101, the ratio between the radial dimension B of the first expansion section 101 and the radial dimension A of the water inlet section 40 constitutes a first aperture ratio, and the ratio between the radial dimension C of the second expansion section 102 and the radial dimension B of the first expansion section 101 constitutes a second aperture ratio. The first aperture ratio B / A and the second aperture ratio C / B determine the overall slowing down level of the water flow after entering the expansion section 10, generally speaking, the greater the ratio, the slower the speed, the more violent the change of the flow state of the water flow in the rear end extrusion section 50, and the higher the bubble concentration generated, the ratio of the first aperture ratio B / A is 1.2-2, and the ratio of the second aperture ratio C / B is 1.2-2.

[0052] In the embodiment, the ratio between the radial dimension A of the water inlet section 40 and the radial dimension E of the water outlet section 30 constitutes a third aperture ratio, and in use, considering the flow matching problem, the radial dimension A of the water inlet section 40 and the radial dimension E of the water outlet section 30 should not differ too much, so the ratio of the third aperture ratio A / E is 0.8-1.2. Further, in order to improve the flow in the water inlet section 40, the radial dimension A of the water inlet section 40 should not be less than 2 mm.

[0053] In this embodiment, the wall surface of the contraction section 20 is arc-shaped, reducing the energy loss of the water flow from the second expansion section 102 to the extrusion section 50. The wall surface of the contraction section 20 is provided with a plurality of guide ribs, which serve to increase the flow speed and rotational speed of the water flow, thereby increasing the cutting and extruding effect of the extrusion section 50 on the water flow. To ensure the guide effect, the guide ribs are uniformly arranged in the circumferential direction of the wall surface of the contraction section 20. The guide ribs include guide ribs 601 for increasing the flow speed of the water flow and rotational speed ribs 602 for increasing the rotational speed of the water flow. FIG. 5 shows different numbers of guide ribs 601, and FIG. 6 shows different numbers of rotational speed ribs 602.

[0054] In this embodiment, the extrusion section 50 is provided at the water outlet end of the contraction section 20. The axial size L of the extrusion section 50 affects the water flow rate and the density of the ultra-micro bubbles. The larger the axial size L of the extrusion section 50, the more stable the water flow state, and the less conducive to the generation of ultra-micro bubbles. However, in order to reduce the overall device flow resistance and ensure that the water outlet flow rate is not excessively reduced compared to the water inlet flow rate, the axial size L of the extrusion section 50 is still maintained at a certain length. Therefore, the ratio of the radial size A of the water inlet section 40 to the axial size L of the extrusion section 50 is 0.5-1.2.

[0055] In this embodiment, a plurality of flow dividing ribs 70 are provided between the extrusion section 50 and the water outlet section 30. Each flow dividing rib 70 divides the channel in the extrusion section 50 into a plurality of flow dividing channels. The more the number of flow dividing ribs 70, the more obvious the cutting effect on the water flow, and the better the bubble generation effect. However, the number of flow dividing ribs 70 is limited by the radial size D of the water outlet end.

[0056] In this embodiment, the flow state of the fluid changes most dramatically in the contraction section 20 in the expansion-contraction-expansion process, i.e., the water flow in the extrusion section 50 to the water outlet section 30 can produce the best ultra-micro bubble generation effect. Therefore, the flow dividing ribs 70 are preferably arranged at the water outlet end of the extrusion section 50. FIG. 7 shows different numbers of flow dividing ribs 70. In actual engineering, when the requirement for the concentration and effect of ultra-micro bubbles is not very high, the structure of the actual production is considered to be simple, and the difficulty of mold forming of the injection molding part is also considered. The flow dividing ribs 70 can also be moved to other positions where the water flow state changes dramatically, which can also produce a certain ultra-micro bubble generation effect. For example, the flow dividing ribs 70 are arranged at the water inlet end of the water outlet section 30. FIG. 8 shows different numbers of flow dividing ribs 70.

[0057] In the embodiment, the water outlet cover 80 and the water inlet cover 120 are connected in a sealing manner, the expansion section 10 is arranged on the water inlet cover 120, and the contraction section 20 and the water outlet section 30 are arranged on the water outlet cover 80. One of the water outlet cover 80 and the water inlet cover 120 is provided with a groove, and the other is provided with a protrusion 130. The water outlet cover 80 and the water inlet cover 120 are connected to each other through the clamping fit between the groove and the protrusion 130, and the groove is provided with a limiting portion 110 for preventing the protrusion 130 from being separated from the groove.

[0058] In the embodiment, the water inlet cover 120 is provided with a sealing groove, a sealing ring 140 is arranged in the sealing groove, and the sealing ring 140 is sealingly matched with the water outlet cover 80. The protrusion 130 is arranged on opposite sides of the water inlet cover 120, and the groove is arranged on opposite sides of the water outlet cover 80. The groove includes a first groove section 901, one end of the first groove section 901 is provided with an opening for the protrusion 130 to enter, the opening is provided with a positioning groove 100 matched with the protrusion 130, so that the protrusion 130 is quickly arranged at the opening of the first groove section 901, the other end of the first groove section 901 is provided with a second groove section 902 communicated with the first groove section 901, and the width of the first groove section 901 is smaller than the width of the second groove section 902, so that the limiting portion 110 is formed at the section difference between the first groove section 901 and the second groove section 902. Further, the protrusion 130 is provided with a guide surface 1301 on the side facing the opening of the first groove section 901, so as to facilitate the protrusion 130 to enter the first groove section 901, and the protrusion 130 is provided with an abutting portion 1302 on the side away from the opening of the first groove section 901, which is used for abutting against the limiting portion 110 to prevent the water inlet cover 120 from being separated.

[0059] During installation, the protrusion 130 is located at the opening, the water inlet cover 120 and / or the water outlet cover 80 are rotated, the protrusion 130 enters the first groove section 901, at this time, the protrusion 130 and the first groove section 901 have a slight interference, the rotation is continued, the protrusion 130 enters the second groove section 902, and the installation is completed, as shown in FIG. 3. When the protrusion 130 moves from the second groove section 902 to the first groove section 901, the abutting portion 1302 abuts against the limiting portion 110, so as to prevent the protrusion 130 from entering the first groove section 901 and moving towards the opening, and the anti-separation function between the water inlet cover 120 and the water outlet cover 80 is realized.

[0060] The above embodiments are only used to illustrate the technical concept and characteristics of the present application, and the purpose is to enable those skilled in the art to understand the content of the present application and implement it, and cannot limit the protection scope of the present application. Any equivalent changes or modifications made according to the spirit and essence of the present application should be covered within the protection scope of the present application. Industrial applicability

[0061] The application provides a water outlet device, which comprises a water inlet, a water outlet and a water outlet flow channel connecting the water inlet and the water outlet, wherein the water outlet flow channel is provided with an expansion section, a contraction section and a water outlet section which are sequentially connected along the water outlet direction; the water passage formed by the expansion section, the contraction section and the water outlet section is provided with a variable-diameter setting of expansion-contraction-expansion along the water passage cross-sectional area along the water outlet direction, so that the flow velocity of the water flow is slowed down-accelerated-slowed down, the pressure is reduced, the air in the water is separated out, the content of the micro-bubbles or the super-micro-bubbles in the water is increased, the dirt is stripped by the instantaneous explosion of the great pressure and the ultrasonic vibration generated when the bubbles break, the cleaning force of the water flow on the exposed workpiece and the ceramic structure is improved, the device has the advantages of water saving, time saving and labor saving, and the frequency of manual washing is reduced, the user experience is improved, and the device has good industrial practicability.

Claims

1. A water outlet device, provided with a water inlet, a water outlet, and a water outlet flow channel connecting between the water inlet and the water outlet, characterized in that, The water outlet channel is provided with a diverging section, a converging section and a water outlet section in sequence along the water outlet direction, the water passing cross-sectional area of the diverging section increases along the water outlet direction, the water passing cross-sectional area of the converging section decreases along the water outlet direction, the water passing cross-sectional area of the converging section at the water inlet end is not greater than the water passing cross-sectional area of the diverging section at the water outlet end, and the water passing cross-sectional area of the water outlet section is greater than the water passing cross-sectional area of the converging section at the water outlet end.

2. A water outlet device as claimed in claim 1, characterized in that The diverging section comprises a first diverging section and a second diverging section arranged in sequence along the water outlet direction, and the water passing cross-sectional area of the first diverging section is smaller than the water passing cross-sectional area of the second diverging section.

3. A water outlet device as claimed in claim 2, characterized in that The water inlet section is further arranged in communication with the first diverging section, the ratio between the radial dimension of the first diverging section and the radial dimension of the water inlet section is 1.2-2, and the ratio between the radial dimension of the second diverging section and the radial dimension of the first diverging section is 1.2-2.

4. A water outlet device as claimed in claim 3, characterized in that The ratio between the radial dimension of the water inlet section and the radial dimension of the water outlet section is 0.8-1.

2.

5. A water outlet device as claimed in claim 3, wherein The wall surface of the converging section is provided with a plurality of flow guide ribs for increasing the flow speed or rotation speed of water flow.

6. A water outlet device as claimed in claim 5, characterised in that The water outlet end of the converging section is provided with an extrusion section, and the ratio between the radial dimension of the water inlet section and the axial dimension of the extrusion section is 0.5-1.

2.

7. A water outlet device as claimed in claim 6, characterised in that A plurality of flow distribution ribs are arranged between the extrusion section and the water outlet section, and each flow distribution rib divides the channel in the extrusion section into a plurality of flow distribution channels.

8. A water outlet device according to any one of claims 1 to 7, wherein The water outlet cover and the water inlet cover are connected to each other by the clamping fit between the recess and the protrusion, and the recess is provided with a limiting portion for preventing the protrusion from being separated from the recess.

9. A water outlet device as claimed in claim 8, characterised in that The recess comprises a first groove section, one end of the first groove section is provided with an opening for the protrusion to enter, the other end of the first groove section is provided with a second groove section in communication with the first groove section, the width of the first groove section is smaller than the width of the second groove section, and the limiting portion is formed at the step between the first groove section and the second groove section.

10. A water outlet device as claimed in claim 9, characterised in that ​

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