A pre-wetting spray device

Abstract

This application discloses a pre-wetting spraying device, belonging to the sanitary ware field, used to solve the problem of how to expand the spraying range of water mist. The pre-wetting spraying device includes: an inlet pipe, an outlet pipe, and a water flow shaping component. The inlet pipe and the outlet pipe are connected, forming a water passage cavity between them. The inlet pipe is provided with an inlet communicating with the water passage cavity, and the outlet pipe is provided with a nozzle communicating with the water passage cavity. The water flow shaping component is rotatably disposed in the water passage cavity around its axis, and is provided sequentially along the axis direction with a flow divider, two guide sections, and an outlet section. The flow divider is located at the end of the water flow shaping component near the inlet, and divides the water passage cavity into two chambers in the space where the flow divider is located. The two guide sections are respectively located on the side of the two chambers near the nozzles, and the guide sections are inclined to the axis. There are two outlet sections, each with a water outlet groove. The two water outlet grooves are respectively connected to the two chambers, and the extension direction of the water outlet grooves is inclined to the guide section.

Description

Technical Field

[0001] This application relates to the field of sanitary ware, and in particular to a pre-wetting spraying device. Background Technology

[0002] In short, ceramic pre-wetting technology involves spraying a fine film of water onto the inner ceramic surface of the toilet bowl before the flushing system is activated. This process not only effectively reduces the likelihood of dirt adhering to the ceramic surface and decreases the amount of water needed for subsequent flushes, but also inhibits bacterial growth to some extent, improving hygiene. By forming a uniform water film, pre-wetting technology significantly improves the flushing effect, making each flush more thorough and efficient, thus providing users with a cleaner and more comfortable experience.

[0003] However, in practical applications, existing toilet ceramic pre-wetting spray devices suffer from limited spray range. Specifically, most pre-wetting spray devices on the market currently create water sprays through nozzle shape, which is typically fan-shaped, resulting in a small spray range. This not only undermines the original intention of pre-wetting technology to improve cleaning efficiency but may also increase the frequency of manual cleaning due to incomplete rinsing, thus reducing the overall usability and user experience of the product.

[0004] It should be noted that the information disclosed in the background section above is only used to enhance the understanding of the background of this disclosure, and therefore may include information that does not constitute prior art known to those skilled in the art. Utility Model Content

[0005] (a) Technical problems to be solved

[0006] This application provides a pre-wetting spraying device that can solve the problem of how to expand the water mist spraying range in the prior art.

[0007] (II) Technical Solution

[0008] To solve the above-mentioned technical problems, this application provides the following technical solution:

[0009] A pre-wetting spraying device is provided, the pre-wetting spraying device comprising:

[0010] The water inlet pipe and the water outlet pipe are detachably connected, and a water passage cavity is formed between the water inlet pipe and the water outlet pipe. The water inlet pipe is provided with an inlet that communicates with the water passage cavity, and the water outlet pipe is provided with a nozzle that communicates with the water passage cavity. The nozzle and the water passage cavity have the same axis, and the nozzle is provided with a constricted part with a gradually decreasing diameter and a flared part with a gradually increasing diameter in sequence along the direction away from the water passage cavity. The smallest diameter end of the constricted part is connected to the smallest diameter end of the flared part.

[0011] A water flow shaping component is rotatably disposed within the water passage cavity around the central axis. Along the central axis, a flow divider, a flow guide, and a water outlet are sequentially arranged. The flow divider is located at the end of the water flow shaping component near the inlet and divides the water passage cavity into two chambers. Two flow guides are provided, each located on the side of one of the two chambers near the nozzle. The flow guides are inclined to the central axis. Two water outlets are provided, each with a water outlet groove. The two water outlet grooves communicate with the two chambers respectively, and their extension direction is inclined to the flow guide.

[0012] In some embodiments, the water flow shaping component is a rotationally symmetrical structure with the axis as the center line at 180 degrees.

[0013] In some embodiments, the diversion section has two inclined surfaces at one end near the inlet, and the two inclined surfaces are inclined from the axis toward the wall of the water passage cavity in a direction away from the inlet.

[0014] In some embodiments, the flow guide has a flow guide surface on the side near the inlet and a first bottom surface on the opposite side of the flow guide surface, the flow guide surface and the first bottom surface being inclined to the axis; the water outlet has a water baffle surface on the side near the inlet and a second bottom surface on the opposite side of the water baffle surface, the water baffle surface being in contact with the flow guide surface of one of the flow guides and forming the water outlet groove between it and the bottom surface of the other flow guide; in the flow guide and the water outlet located on the same side of the diversion section, the second bottom surface and the first bottom surface are located on the same plane.

[0015] In some embodiments, the outer surfaces of the guide portion and the water outlet portion are arc surfaces adapted to the shape of the inner wall of the water passage cavity.

[0016] In some embodiments, the inlet, nozzle, and water passage cavity have the same axis.

[0017] In some embodiments, the inner side of the outlet pipe is provided with a shoulder facing the inlet, the inner side of the inlet pipe is provided with a stepped surface facing the nozzle, and the water flow shaping component is disposed between the shoulder and the stepped surface.

[0018] In some embodiments, the inlet pipe and the outlet pipe are connected by a thread.

[0019] In some embodiments, the pre-wetting spraying device further includes a sealing ring located at the connection between the inlet pipe and the outlet pipe, for sealing the water passage cavity.

[0020] In some embodiments, the pre-wetting spraying device is disposed at the rear end of the electrolyzed water module, the UVC sterilization module, or the foam shield assembly, and is configured to output water flow that has been treated by the electrolyzed water module, the UVC sterilization module, or the foam shield assembly.

[0021] (III) Beneficial Effects

[0022] Compared with the prior art, the beneficial effects of the technical solution provided in this application include at least the following:

[0023] When the pre-wetting spraying device of this application is working, water flows into the water passage chamber from the inlet of the inlet pipe and is diverted into two chambers by the flow shaping component. The water flow in the two chambers then flows to the outlet through the corresponding guide section and exits from the outlet channel of the outlet. Since the guide section is inclined to the axis and the extension direction of the outlet channel is inclined to the guide section, the flow shaping component can rotate during the water flow. The water flowing out of the outlet channel can rotate in the water passage chamber with the flow shaping component and be output from the nozzle. At the same time, the nozzle increases the water pressure through the constriction section and forms water spray through the expansion section. Since its diameter gradually decreases and then gradually increases along the direction away from the water passage chamber, a conical spray is formed, which expands the water mist spray range, thereby improving the pre-wetting effect and enhancing the overall use value and user experience of the product. Attached Figure Description

[0024] To more clearly illustrate the technical solutions in the embodiments of this application, the accompanying drawings used in the description of the embodiments will be briefly introduced below. Obviously, the accompanying drawings described below are only some embodiments of this application. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0025] Figure 1 This is a perspective view of the pre-wetting spraying device in the embodiments of this application;

[0026] Figure 2 This is an exploded view of the pre-wetting spraying device in the embodiments of this application;

[0027] Figure 3 This is a perspective view of the water flow shaping component in the embodiments of this application;

[0028] Figure 4 This is a bottom view of the pre-wetting spraying device in the embodiments of this application;

[0029] Figure 5 yes Figure 4 A sectional view of section A in the middle;

[0030] Figure 6 yes Figure 4 Sectional view of section B;

[0031] Figure 7 yes Figure 4 A sectional perspective view of section C in the middle;

[0032] Figure 8 yes Figure 4 A three-dimensional sectional view of section D.

[0033] Figure label:

[0034] Water inlet pipe 1, water inlet 11, stepped surface 12;

[0035] Water outlet pipe 2, nozzle 21, orifice shoulder 22;

[0036] Water flow shaping component 3, flow divider 31, flow guide 32, water outlet 33, inclined surface 311, flow guide surface 321, first bottom surface 322, arc surface 323, water outlet groove 331, water blocking surface 332, second bottom surface 333;

[0037] Water passage chamber 4, chamber 40;

[0038] Sealing ring 5;

[0039] Centerline L.

[0040] The accompanying drawings illustrate specific embodiments of this application, which will be described in more detail below. These drawings and descriptions are not intended to limit the scope of the concept in any way, but rather to illustrate the concept of this application to those skilled in the art through reference to particular embodiments. Detailed Implementation

[0041] The present disclosure will now be described in further detail with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are for illustrative purposes only and are not intended to limit the scope of the disclosure. Furthermore, it should be noted that, for ease of description, only the parts relevant to the present disclosure are shown in the accompanying drawings.

[0042] It should be noted that, where there is no conflict, the embodiments and features described in this disclosure can be combined with each other. The technical solutions of this disclosure will now be described in detail with reference to the accompanying drawings and embodiments.

[0043] Unless otherwise stated, the exemplary implementations / embodiments shown are to be understood as providing exemplary features of various details that provide ways in which the technical concepts of this disclosure can be implemented in practice. Therefore, unless otherwise stated, the features of various implementations / embodiments may be additionally combined, separated, interchanged and / or rearranged without departing from the technical concepts of this disclosure.

[0044] The use of crosshairs and / or shading in the accompanying drawings is generally used to clarify the boundaries between adjacent components. Thus, unless otherwise stated, the presence or absence of crosshairs or shading does not convey or indicate any preference or requirement for the specific material, material properties, dimensions, proportions, commonalities between the illustrated components, or any other characteristics, properties, etc., of the components. Furthermore, in the accompanying drawings, the dimensions and relative dimensions of components may be exaggerated for clarity and / or descriptive purposes. When exemplary embodiments can be implemented differently, a specific process sequence may be performed in a different order than that described. For example, two consecutively described processes may be performed substantially simultaneously or in the reverse order of their description. Furthermore, the same reference numerals denote the same components.

[0045] When a component is referred to as being "on" or "above" another component, "connected to," or "joined to" another component, the component may be directly on, directly connected to, or directly joined to the other component, or there may be intermediate components. However, when a component is referred to as being "directly on" another component, "directly connected to," or "directly joined to" another component, there are no intermediate components. Therefore, the term "connection" can refer to a physical connection, an electrical connection, etc., and may or may not have intermediate components.

[0046] For descriptive purposes, this disclosure may use spatial relative terms such as “below,” “under,” “below,” “down,” “above,” “above,” “higher,” and “side (e.g., in a “sidewall”)” to describe the relationship between one component and another component as shown in the accompanying drawings. In addition to the orientations depicted in the drawings, the spatial relative terms are also intended to encompass different orientations of the device during use, operation, and / or manufacture. For example, if the device in the drawings is flipped, a component described as “below” or “under” another component or feature would subsequently be positioned “above” said other component or feature. Thus, the exemplary term “below” can encompass both “above” and “below” orientations. Furthermore, the device may be otherwise positioned (e.g., rotated 90 degrees or in other orientations), thus interpreting the spatial relative descriptive terms used herein accordingly.

[0047] The terminology used herein is for the purpose of describing particular embodiments and is not intended to be limiting. As used herein, unless the context clearly indicates otherwise, the singular forms “a” and “the” are intended to include the plural forms as well. Furthermore, when the terms “comprising” and / or “including” and variations thereof are used in this specification, it indicates the presence of the stated features, integrals, steps, operations, parts, components, and / or groups thereof, but does not exclude the presence or addition of one or more other features, integrals, steps, operations, parts, components, and / or groups thereof. It should also be noted that, as used herein, “substantially,” “about,” and other similar terms are used as approximate terms rather than as terms of degree, thus allowing for the interpretation of inherent deviations in measurements, calculated values, and / or provided values ​​that would be recognized by one of ordinary skill in the art.

[0048] Existing pre-wetting spray devices mostly form water sprays through the shape of the nozzle, which is usually fan-shaped. This results in a small spray range, which not only undermines the original intention of pre-wetting technology to improve cleaning efficiency, but may also increase the frequency of manual cleaning by users due to incomplete rinsing, thus reducing the overall use value and user experience of the product.

[0049] To address the aforementioned technical problems, this embodiment provides a pre-wetting spraying device. (See reference...) Figures 1 to 8 As shown, where, Figure 1 This is a perspective view of the pre-wetting spraying device in the embodiments of this application. Figure 2 This is an exploded view of the pre-wetting spraying device in the embodiments of this application. Figure 3 This is a perspective view of the water flow shaping component in the embodiments of this application. Figure 4 This is a bottom view of the pre-wetting spraying device in the embodiments of this application. Figure 5 yes Figure 4 Sectional view of section A in the middle. Figure 6 yes Figure 4 Sectional view of section B in the middle. Figure 7 yes Figure 4 sectional perspective view of section C. Figure 8 yes Figure 4 A three-dimensional sectional view of section D.

[0050] The pre-wetting spraying device in this embodiment includes: an inlet pipe 1, an outlet pipe 2, and a water flow shaping component 3.

[0051] The inlet pipe 1 and the outlet pipe 2 are detachably connected, for example, by a threaded connection. A water passage cavity 4 is formed between the inlet pipe 1 and the outlet pipe 2. The inlet pipe 1 is provided with an inlet 11 communicating with the water passage cavity 4, and the outlet pipe 2 is provided with a nozzle 21 communicating with the water passage cavity 4. The nozzle 21 and the water passage cavity 4 have a circular radial cross-section and the same axis L. The nozzle 21 is provided with a constricted section 211 with a gradually decreasing diameter and an flared section 212 with a gradually increasing diameter. The smallest diameter end of the constricted section 211 is connected to the smallest diameter end of the flared section 212. The nozzle 21 increases the water pressure through the constricted section 211 and then forms water spray through the flared section 212. The constricted section 211 and the flared section 212 control the angle of the water spray through their inner inclined surfaces.

[0052] The water flow shaping component 3 is rotatably disposed within the water passage cavity 4 around the axis L, and is sequentially provided with a flow divider 31, a flow guide 32, and a water outlet 33 along the axis L, as follows: Figure 5 As shown, the diversion section 31 is located at one end of the water flow shaping component 3 near the inlet 11, and divides the water passage cavity 4 into two chambers 40 in the space where the diversion section 31 is located; as Figure 6 As shown, there are two flow guides 32, which are located on the side of the two chambers 40 near the nozzle 21. The flow guides 32 are inclined to the axis L. There are two water outlets 33, each of which is provided with a water outlet groove 331. The two water outlet grooves 331 are connected to the two chambers 40 respectively. The extension direction of the water outlet grooves 331 is inclined to the flow guides 32.

[0053] In some implementations, see Figure 3 and Figure 8 As shown, the water flow shaping component 3 is a rotationally symmetrical structure with the axis L as its centerline. For example, the water flow shaping component 3 adopts a double-helix guide vane structure, forming a 180-degree rotationally symmetrical layout with the axis L as its centerline. Of course, the guide surface 321 of the double-helix guide vane can be either a plane or a curved surface. This configuration ensures that the water flow, after entering the water passage cavity 4, is forcibly calibrated into an annular flow beam rotating around the axis L, thereby driving the water flow shaping component 3 to rotate.

[0054] Further, see Figure 5 and Figure 8As shown, the diversion section 31 has two inclined surfaces 311 near the inlet 11. These two inclined surfaces 311 are inclined from the axis L toward the wall of the water passage cavity 4 in a direction away from the inlet 11. The rotating water flow forms an opposing coupling with the inclined surfaces 311 of the diversion section. The inclination angle of the inclined surfaces 311 is complementary to the helix angle of the blades, achieving the axial to radial conversion of the water flow. Simultaneously, the symmetrical inclined surfaces 311 counteract the vibrations generated by asymmetrical impacts, reducing operating noise; the inclined guide structure prevents particulate matter from accumulating at the inlet 11, extending maintenance cycles.

[0055] See Figure 3 , Figure 7 and Figure 8 As shown, in some embodiments, the flow guide 32 has a flow guide surface 321 on the side near the inlet 11, and a first bottom surface 322 on the opposite side of the flow guide surface 321. The flow guide surface 321 and the first bottom surface 322 are inclined with the axis L, and the inclination direction is consistent with the water flow rotation direction. The outlet 33 has a water-blocking surface 332 on the side near the inlet 11 that is seamlessly connected to the flow guide surface 321. A second bottom surface 333 is provided on the opposite side of the water-blocking surface 332. The water-blocking surface 332 is connected to the flow guide surface 321 of one flow guide 32 and forms the outlet groove 331 between it and the first bottom surface 322 of another flow guide 32. For example, the first bottom surface 322 of the flow guide and the water-blocking surface 332 of the adjacent outlet form a tapering wedge-shaped groove, and the width of the groove narrows linearly along the water flow direction. In the flow guide 32 and water outlet 33 located on the same side of the flow divider 31, the second bottom surface 333 and the first bottom surface 322 are located on the same plane.

[0056] In some implementations, see Figure 3 As shown, the outer surfaces of the guide section 32 and the water outlet section 33 are arc surfaces 323 that are adapted to the shape of the inner wall of the water passage cavity 4, and their outer diameter is slightly smaller than the inner diameter of the water passage cavity 4.

[0057] In some implementations, see Figure 2 , Figure 7 and Figure 8 As shown, the inlet 11, nozzle 21 and water passage 4 have the same axis L, forming a coaxial flow channel structure. The coaxial flow channel structure eliminates the vortex caused by water flow eccentricity and reduces pressure loss.

[0058] See Figure 7 As shown, the water flow shaping component 3 can be disposed in the water passage cavity 4 in the following manner: a shoulder 22 facing the inlet 11 is provided on the inner side of the outlet pipe 2, a stepped surface 12 facing the nozzle 21 is provided on the inner side of the inlet pipe 1, and the water flow shaping component 3 is disposed between the shoulder 22 and the stepped surface 12.

[0059] In some implementations, see Figure 7 As shown, the pre-wetting spraying device also includes a sealing ring 5, which is located at the connection between the water inlet pipe 1 and the water outlet pipe 2, and is used to seal the water passage chamber 4.

[0060] For example, the pre-wetting spraying device is located at the rear end of the electrolyzed water module, UVC sterilization module, or foam shield assembly. For instance, it is connected to the output end of the electrolyzed water module, UVC sterilization module, or foam shield assembly via an inlet pipe 1. The output end is used to output the treated water flow. The pre-wetting spraying device is configured to output the water flow treated by the electrolyzed water module, UVC sterilization module, or foam shield assembly, and then use the treated water flow to perform sterilization operations such as electrolyzed water pre-wetting sterilization and foam shield sterilization on the ceramic.

[0061] When the pre-wetting spraying device of this application is working, the water flow enters the water passage chamber 4 from the inlet 11 of the inlet pipe 1, and is divided into two chambers 40 by the diversion part 31 of the water flow shaping component 3. The water flow in the two chambers 40 then flows to the outlet part 33 through the corresponding guide part 32, and flows out from the outlet groove 331 of the outlet part 33. Since the guide part 32 is inclined to the axis L, and the extension direction of the outlet groove 331 is inclined to the guide part 32, the water flow shaping component 3 can rotate during the water flow. The water flow from the outlet groove 331 can rotate in the water passage chamber 4 with the water flow shaping component 3 to increase its radial power, and then be sprayed out from the nozzle 21. At the same time, the diameter of the nozzle 21 gradually decreases and then gradually increases along the direction away from the water passage chamber 4, thus forming a conical spray, expanding the water mist spray range, thereby improving the pre-wetting effect and enhancing the overall use value and user experience of the product.

[0062] In the description of this specification, the references to terms such as "one embodiment / mode," "some embodiments / modes," "example," "specific example," or "some examples," etc., indicate that a specific feature, structure, material, or characteristic described in connection with that embodiment / mode or example is included in at least one embodiment / mode or example of this application. In this specification, the illustrative expressions of the above terms do not necessarily refer to the same embodiment / mode or example. Moreover, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments / modes or examples. Furthermore, without contradiction, those skilled in the art can combine and integrate the different embodiments / modes or examples described in this specification, as well as the features of different embodiments / modes or examples.

[0063] Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include at least one of that feature. In the description of this application, "multiple" means at least two, such as two, three, etc., unless otherwise explicitly specified.

[0064] Those skilled in the art should understand that the above embodiments are merely for illustrating the present disclosure and are not intended to limit the scope of the disclosure. Those skilled in the art can make other changes or modifications based on the above disclosure, and these changes or modifications still fall within the scope of the present disclosure.

Claims

1. A pre-wetting spraying device, characterized in that, include: The water inlet pipe and the water outlet pipe are detachably connected, and a water passage cavity is formed between the water inlet pipe and the water outlet pipe. The water inlet pipe is provided with an inlet that communicates with the water passage cavity, and the water outlet pipe is provided with a nozzle that communicates with the water passage cavity. The nozzle and the water passage cavity have the same axis, and the nozzle is provided with a constricted part with a gradually decreasing diameter and a flared part with a gradually increasing diameter in sequence along the direction away from the water passage cavity. The smallest diameter end of the constricted part is connected to the smallest diameter end of the flared part. A water flow shaping component is rotatably disposed within the water passage cavity around the central axis. Along the central axis, a flow divider, a flow guide, and a water outlet are sequentially arranged. The flow divider is located at the end of the water flow shaping component near the inlet and divides the water passage cavity into two chambers. Two flow guides are provided, each located on the side of one of the two chambers near the nozzle. The flow guides are inclined to the central axis. Two water outlets are provided, each with a water outlet groove. The two water outlet grooves communicate with the two chambers respectively, and their extension direction is inclined to the flow guide.

2. The pre-wetting spraying device according to claim 1, characterized in that, The water flow shaping component is a rotationally symmetrical structure with the central axis as the center line at a 180-degree angle.

3. The pre-wetting spraying device according to claim 1 or 2, characterized in that, The diversion section has two inclined surfaces near the inlet, and the two inclined surfaces are inclined from the axis toward the wall of the water passage cavity in a direction away from the inlet.

4. The pre-wetting spraying device according to claim 1, characterized in that, The flow guide has a flow guide surface on the side near the water inlet, and a first bottom surface on the opposite side of the flow guide surface. The flow guide surface and the first bottom surface are inclined to the axis. The water outlet is provided with a water-blocking surface on the side near the water inlet, and a second bottom surface is provided on the opposite side of the water-blocking surface. The water-blocking surface is in contact with the guide surface of one of the guide parts and forms the water outlet groove between it and the bottom surface of the other guide part. In the guide part and the water outlet located on the same side of the diversion part, the second bottom surface and the first bottom surface are located on the same plane.

5. The pre-wetting spraying device according to claim 1, characterized in that, The outer surfaces of the guide section and the water outlet section are arc surfaces adapted to the shape of the inner wall of the water passage cavity.

6. The pre-wetting spraying device according to claim 1, characterized in that, The water inlet, nozzle, and water passage cavity have the same axis.

7. The pre-wetting spraying device according to claim 1, characterized in that, The inner side of the outlet pipe is provided with a shoulder facing the inlet, and the inner side of the inlet pipe is provided with a stepped surface facing the nozzle. The water flow shaping component is disposed between the shoulder and the stepped surface.

8. The pre-wetting spraying device according to claim 1, characterized in that, The inlet pipe and outlet pipe are connected by a thread.

9. The pre-wetting spraying device according to claim 1, characterized in that, The pre-wetting spraying device also includes a sealing ring, which is located at the connection between the inlet pipe and the outlet pipe and is used to seal the water passage cavity.

10. The pre-wetting spraying device according to claim 1, characterized in that, The pre-wetting spraying device is located at the rear end of the electrolyzed water module, UVC sterilization module, or foam shield assembly, and is configured to output water flow that has been treated by the electrolyzed water module, UVC sterilization module, or foam shield assembly.

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