Nozzle device capable of preventing water from scattering and closestool cover plate cleaning device

By incorporating a combination of flow straightening ribs and baffles in the nozzle, the problem of water flow branching in the four-hole nozzle structure is solved, achieving stability and uniformity of water output from the nozzle, thereby improving user experience and production efficiency.

CN224114238UActive Publication Date: 2026-04-14XIAMEN R&T PLUMBING TECH
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
XIAMEN R&T PLUMBING TECH
Filing Date
2025-02-28
Publication Date
2026-04-14

AI Technical Summary

Technical Problem

The existing four-hole water nozzle structure causes the water flow to split after spraying out, which affects the water output effect and user experience, and also results in a high product defect rate during the production process.

Method used

A nozzle device for waterproof spraying is designed, which adopts a combination structure of flow straightening ribs and water baffles. By reasonably arranging the flow straightening ribs and water baffles, the water flow is effectively rectified and guided inside the nozzle, avoiding water flow mixing and branching.

Benefits of technology

It improves the quality and stability of the water output from the nozzle, reduces the defect rate of products, enhances user experience and production efficiency, and strengthens the applicability and versatility of the nozzle.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model provides a spray nozzle device capable of preventing water from scattering and a closestool cover plate cleaning device. The spray nozzle device comprises a spray nozzle and at least two rectification ribs arranged in the length direction of the spray nozzle. The nozzle is provided with a water outlet cavity and a water outlet hole communicated with the water outlet cavity, a rectifying rib is arranged at the position, opposite to the water outlet hole, of the water outlet cavity, the water baffle is located on the side, provided with the water outlet hole, of the water outlet cavity, the water baffle and the rectifying rib are sequentially arranged in the water inlet direction, and the lowest point of the water baffle is lower than the highest point of the rectifying rib adjacent to the water baffle. At least two water volume areas are arranged in the water outlet cavity of the nozzle, the water volume of one water volume area is larger than that of the other water volume area, and the height of the rectifying rib located in the area with the relatively low water volume is smaller than that of the rectifying rib located in the area with the relatively high water volume. By reasonably arranging the rectifying rib and the water baffle, water flow in the nozzle can be effectively rectified and guided, the water flow is prevented from being mixed in a cavity in the nozzle, and therefore the risk that the water flow is split and scattered after being sprayed out is reduced.
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Description

Technical Field

[0001] This utility model relates to the field of water discharge product technology, specifically to a waterproof spray nozzle device and a toilet seat cleaning device. Background Technology

[0002] As people's pursuit of quality of life continues to improve, bidets with rinsing functions have received widespread attention among the many products that enhance convenience and comfort. Functionally, these bidets mainly cover two modes: posterior wash and feminine wash, to meet cleaning needs in different scenarios. Structurally, they come in single-hole and multi-hole versions. Currently, most feminine wash nozzles on the market use a four-hole design, which provides a more dispersed water flow for a more comprehensive cleaning effect.

[0003] However, in actual production applications, the four-hole nozzle structure has revealed some problems. Due to uneven water distribution within the nozzle's internal cavity, differences in water flow velocity among the outlets, and the mixing of water flows within the nozzle's internal cavity, the water jet is prone to forking. This not only affects the nozzle's water output, making rinsing less concentrated and powerful, and failing to accurately reach the intended cleaning areas, thus reducing the user experience, but also leads to a higher defect rate in large-scale production, imposing additional cost burdens on manufacturers and impacting the product's market reputation and competitiveness.

[0004] In view of this, the present invention provides a nozzle device and a toilet seat cleaning device that prevents water splashing and forking after water is discharged from a multi-hole nozzle, thereby improving the water quality of the nozzle, enhancing user satisfaction, reducing the defect rate in the production process, and creating better economic benefits for manufacturing enterprises. Utility Model Content

[0005] To address the problems of water jet splitting after spraying from existing nozzles and the high defect rate of products during production, this application provides a nozzle device that prevents water jet scattering and a toilet seat cleaning device to solve the technical defects of the four-hole nozzle structure.

[0006] In the first aspect, this utility model proposes a nozzle device for waterproof spray scattering, comprising: a nozzle and at least two flow straightening ribs arranged along the length of the nozzle;

[0007] The nozzle is provided with a water outlet chamber and a water outlet hole communicating with the water outlet chamber. A flow straightening rib is provided at the position opposite to the water outlet hole. The baffle is located on the side of the water outlet chamber where the water outlet hole is located. The baffle and the flow straightening rib are arranged sequentially along the water inlet direction, and the lowest point of the baffle is lower than the highest point of the adjacent flow straightening rib.

[0008] The nozzle outlet chamber contains at least two water volume zones, one of which has a larger water volume than the other. The height of the straightening rib in the relatively low water volume zone is lower than the height of the straightening rib in the relatively high water volume zone.

[0009] Preferably, the flow straightening ribs are directly opposite and correspond one-to-one with the nozzle outlet holes.

[0010] Preferably, the flow straightening rib includes a first outlet flow straightening rib and a third outlet flow straightening rib, wherein the first outlet flow straightening rib is located inside the nozzle water outlet chamber on the side near the water inlet, and the distance between the first outlet flow straightening rib and the baffle plate is less than the distance between the baffle plate and the third outlet flow straightening rib, and the height of the first outlet flow straightening rib is higher than the height of the third outlet flow straightening rib.

[0011] Preferably, the flow straightener includes a first outlet flow straightener, a second outlet flow straightener, and a third outlet flow straightener. The area inside the nozzle water outlet chamber near the water inlet is a high water flow area, and the area away from the water inlet is a low water flow area. The first outlet flow straightener is located in the high water flow area, the third outlet flow straightener is located in the low water flow area, and the second outlet flow straightener is located between the first outlet flow straightener and the third outlet flow straightener. The height of the second outlet flow straightener is higher than the height of the third outlet flow straightener.

[0012] More preferably, the distance between the first outlet rectifier and the third outlet rectifier is greater than the distance between the second outlet rectifier and the baffle plate, and the distance between the first outlet rectifier and the third outlet rectifier is greater than the distance between the inner walls of the water outlet chambers on the adjacent sides of the second outlet rectifier and the third outlet rectifier. The second outlet rectifier includes two sets, and the two sets of second outlet rectifiers extend to both sides relative to the first outlet rectifier, and are arranged separately on the left and right.

[0013] Further preferably, the height of the second outlet rectifier rib is higher than the height of the first outlet rectifier rib and the third outlet rectifier rib, and the height of the third outlet rectifier rib is the lowest.

[0014] Preferably, the angle between the baffle plate and the water inlet direction of the nozzle outlet chamber is 45°-135°, and the water inlet direction between the baffle plate and the adjacent flow straightener matches the water outlet direction of the corresponding nozzle of the adjacent flow straightener.

[0015] Preferably, the nozzle includes a nozzle housing and a nozzle cover. The nozzle cover is snapped onto the lower part of the nozzle housing. The nozzle cover is provided with flow straightening ribs in the angular direction corresponding to the water outlet of the nozzle housing, and the flow straightening ribs are in a smooth arc shape.

[0016] A further preferred embodiment of the present invention is a nozzle device for waterproofing spraying, which further includes a face cover. The face cover is nested with the nozzle housing and / or the nozzle cover, and a baffle plate is provided at the water inlet front end of the face cover.

[0017] Secondly, this utility model proposes a toilet seat cleaning device, including a waterproof spray nozzle device as described in any of the above claims.

[0018] Compared with the prior art, the beneficial results of this utility model are as follows:

[0019] (1) Effectively prevent water splashing: By setting up a specific flow straightening rib and reasonably arranging the baffle, the water flow inside the nozzle can be effectively rectified and guided, avoiding water flow mixing in the cavity inside the nozzle, thus significantly reducing the risk of water flow splitting and scattering after spraying out, ensuring that the water flow sprayed out of the nozzle is concentrated and stable, improving the water output quality of the nozzle, making rinsing more precise and powerful, and better reaching the expected cleaning area, greatly improving the user experience.

[0020] (2) Optimized water distribution inside the nozzle: The nozzle outlet chamber of this invention contains at least two water volume zones, and the height of the straightening ribs is adjusted accordingly based on the different water volume zones. The height of the straightening ribs located in the low water volume zone is lower than that of the straightening ribs located in the high water volume zone. This design enables the water flow distribution inside the nozzle to be more uniform, and the water flow velocity and flow rate of each outlet hole to be more balanced, further improving the water output effect of the nozzle and avoiding the problem of uneven rinsing caused by uneven water volume, making the rinsing effect more ideal.

[0021] (3) Improve production efficiency and product quality: In the process of large-scale production, the structural design of this utility model can effectively prevent water splashing and water flow forking, thereby greatly reducing the defect rate of products caused by these problems, reducing defective and waste products in the production process, improving production efficiency, reducing production costs, creating better economic benefits for production enterprises, and also helping to improve the market reputation and competitiveness of products.

[0022] (4) Enhanced applicability and versatility of the nozzle: The waterproof spray nozzle device of this utility model can be applied to a variety of water dispensing products, especially equipment that requires precise rinsing, such as toilet seat cleaning devices. Its structural design has strong applicability and versatility, which can meet the cleaning needs in different scenarios, provide technical support for the upgrading of related products, and promote the development of the water dispensing product technology field. Attached Figure Description

[0023] The accompanying drawings are included to provide a further understanding of the embodiments and are incorporated in and constitute a part of this specification. The drawings illustrate embodiments and, together with the description, serve to explain the principles of the present invention. Other embodiments and many anticipated advantages of the embodiments will be readily recognized as they become better understood through reference to the following detailed description. Elements in the drawings are not necessarily to scale. The same reference numerals refer to corresponding similar parts.

[0024] Figure 1 This is a side sectional view of the waterproof flower scattering nozzle device according to the present invention;

[0025] Figure 2 This is an exploded perspective view of the waterproof spray nozzle device according to the present invention;

[0026] Figure 3 This is a cross-sectional view of the waterproof spray nozzle device according to the present invention;

[0027] Figure 4 This is a schematic diagram of the face cover of the waterproof spray nozzle device according to the present invention;

[0028] Figure 5 This is a schematic diagram of the water spraying mechanism of the toilet seat cleaning device according to this utility model.

[0029] The meaning of each number in the diagram:

[0030] Nozzle 1, Nozzle length direction 10, Water outlet chamber 11, Water outlet hole 12, Nozzle housing 13, Nozzle cover 2, Flow straightening rib 21, First outlet flow straightening rib 211, Second outlet flow straightening rib 212, Third outlet flow straightening rib 213, Face cover 3, Water baffle 31, Sealing ring 4, Top cover 5, Rear shell 6, Base assembly 7, Seat ring 8, Spray bar 9. Detailed Implementation

[0031] In the following detailed description, reference is made to the accompanying drawings, which form part of the detailed description and illustrate illustrative specific embodiments in which the present invention may be practiced. In this regard, directional terms such as “top,” “bottom,” “left,” “right,” “up,” “down,” etc., are used with reference to the orientation of the described figures. Because components of the embodiments can be positioned in several different orientations, directional terms are used for illustrative purposes and are by no means limiting. It should be understood that other embodiments may be utilized or logical changes may be made without departing from the scope of the present invention. Therefore, the following detailed description should not be taken in a limiting sense, and the scope of the present invention is defined by the appended claims.

[0032] This invention proposes a nozzle device for waterproof flower scattering. Figure 1 A side sectional view of a waterproof flower-scattering nozzle device according to the present invention is shown. Figure 2 An exploded perspective view of a waterproof flower-scattering nozzle device according to the present invention is shown. Figure 3 A cross-sectional view of the waterproof flower-scattering nozzle device of this invention is shown, in conjunction with reference to the reference. Figures 1-3The nozzle device includes a nozzle 1 and at least two flow-rectifying ribs 21 arranged along the length 10 of the nozzle. The nozzle 1 has a water outlet chamber 11 and a water outlet hole 12 communicating with the water outlet chamber 11. The flow-rectifying ribs 21 are positioned opposite to the water outlet holes 12. In this embodiment, the flow-rectifying ribs 21 are directly opposite to and correspond one-to-one with the water outlet holes 12 of the nozzle 1, ensuring that the water flow from each water outlet hole 12 is effectively rectified by the corresponding flow-rectifying rib 21 before entering the water outlet hole 12.

[0033] The nozzle 1 includes a nozzle housing 13 and a nozzle cover 2. The nozzle cover 2 is snapped onto the lower part of the nozzle housing 13. A flow straightening rib 21 is provided on the nozzle cover 2 in the angular direction corresponding to the water outlet 12 of the nozzle housing 13, and the flow straightening rib 21 is a smooth arc shape. The nozzle device also includes a face cover 3, which is nested with the nozzle housing 13 and / or the nozzle cover 2. Figure 4 A schematic diagram of the faceplate of the waterproof flower-scattering nozzle device according to the present invention is shown, as follows: Figure 4 As shown, the front end of the water inlet of the faceplate 3 is provided with the baffle plate 31.

[0034] A baffle plate 31 is located on the side of the water outlet chamber 11 where the water outlet hole 12 is located. The baffle plate 31 and the flow straightening ribs 21 are arranged sequentially along the water inlet direction, and the lowest point of the baffle plate 31 is lower than the highest point of the adjacent flow straightening rib 21. The nozzle water outlet chamber 11 contains at least two water volume zones, one of which has a larger water volume than the other. The height of the flow straightening rib located in the relatively low water volume zone is lower than the height of the flow straightening rib located in the relatively high water volume zone. Thus, when water enters the nozzle 1, the baffle plate 31 can guide the water flow to change its direction, causing it to bypass a certain angle before entering the nozzle water outlet chamber 11. At the same time, the flow straightening ribs 21 have different heights depending on the water volume in their respective zones, thereby rectifying and regulating the water flow, ensuring that the water flow direction at the outlet is consistent and the flow rate is balanced, and improving the nozzle's spray performance and usage effect.

[0035] In one embodiment, the flow straightening rib 21 includes a first outlet flow straightening rib 211 and a third outlet flow straightening rib 213. The first outlet flow straightening rib 211 is located inside the nozzle outlet chamber 11 near the inlet, and the distance between the first outlet flow straightening rib 211 and the baffle plate 31 is smaller than the distance between the baffle plate 31 and the third outlet flow straightening rib 213. The height of the first outlet flow straightening rib 211 is higher than the height of the third outlet flow straightening rib 213. This embodiment, by providing two outlet flow straightening ribs, allows for more precise guidance and adjustment of the water flow. The first outlet flow straightening rib 211, located inside the nozzle outlet chamber 11 near the inlet, primarily guides and straightens the water flow just entering the nozzle 1. Due to its close proximity to the baffle plate 31, the water flow, after passing through the first outlet flow straightening rib 211, can be quickly guided to a predetermined flow direction, reducing turbulence and eddies, and allowing the water flow to enter the subsequent area inside the nozzle 1 more stably. The third outlet rectifier 213 is located at the rear of the nozzle water outlet chamber 11, and the distance between it and the baffle plate 31 is relatively far. This allows the water flow to have enough time and space to be further stabilized and evenly distributed after being rectified by the first outlet rectifier 211. Then, it undergoes final rectification and guidance through the third outlet rectifier 213, ensuring that the water flow is ejected from the nozzle in a stable and concentrated state.

[0036] Furthermore, the height of the first outlet rectifier 211 is higher than that of the third outlet rectifier 213. This height difference creates varying degrees of obstruction to the water flow at different locations, thereby regulating and balancing the water volume inside the nozzle. Inside the nozzle outlet chamber 11, the area near the inlet is a high-volume zone, and the area further from the inlet is a low-volume zone. The first outlet rectifier 211 is located in the high-volume zone, and its higher height significantly obstructs the water flow there, causing more water to flow into the low-volume zone, thus better controlling the water flow in the high-volume zone. Conversely, the third outlet rectifier 213 is located in the low-volume zone, and its lower height provides less obstruction, allowing the water to flow more smoothly and ensuring a stable water flow even in the low-volume zone. This height difference design makes the water distribution inside the nozzle more uniform, resulting in a more balanced water velocity and flow rate at each outlet, avoiding water flow branching and scattering caused by uneven water volume.

[0037] In this embodiment, two flow straightening ribs 21 (a first outlet flow straightening rib 211 and a third outlet flow straightening rib 213) are provided, and these two flow straightening ribs 21 are directly opposite to the two water outlet holes 12 of the nozzle 1 and correspond one-to-one. Specifically, the first outlet flow straightening rib 211 on the side closer to the water inlet corresponds to the water outlet hole 12 on the side closer to the water inlet, and the first outlet flow straightening rib 213 on the side farther from the water inlet corresponds to the water outlet hole 12 on the side farther from the water inlet.

[0038] In another embodiment, the flow straightener 21 includes a first outlet flow straightener 211, a second outlet flow straightener 212, and a third outlet flow straightener 213. The area inside the nozzle water outlet chamber 11 near the water inlet is a high water volume area, and the area away from the water inlet is a low water volume area. The first outlet flow straightener 211 is located in the high water volume area, the third outlet flow straightener 213 is located in the low water volume area, and the second outlet flow straightener 212 is located between the first outlet flow straightener 211 and the third outlet flow straightener 213. The height of the second outlet flow straightener 212 is higher than the heights of the first outlet flow straightener 211 and the third outlet flow straightener 213, and the height of the third outlet flow straightener 213 is the lowest.

[0039] The first outlet rectifier 211 is located in the high-flow zone and is mainly responsible for the initial rectification and guidance of the water flow in the high-flow zone, ensuring it flows in a predetermined direction. The second outlet rectifier 212 is located between the first outlet rectifier 211 and the third outlet rectifier 213, and its height is higher than that of the third outlet rectifier 213. It can further rectify and guide the water flow after it has been rectified by the first outlet rectifier 211, making the water flow more stable and uniform. The third outlet rectifier 213 is located in the low-flow zone, and its lower height causes less obstruction to the water flow in the low-flow zone, allowing the water flow to pass through more smoothly, thus ensuring that the water flow in the low-flow zone can also be sprayed out stably. Through the multi-stage rectification and guidance of these three outlet rectifiers, the water flow sprayed from the nozzle can be more concentrated and stable, effectively preventing water flow branching and scattering.

[0040] Preferably, the distance between the first outlet rectifier 211 and the third outlet rectifier 213 is greater than the distance between the second outlet rectifier 212 and the baffle plate 31, and the distance between the first outlet rectifier 211 and the third outlet rectifier 213 is greater than the distance between the inner walls of the water outlet chambers on adjacent sides of the second outlet rectifier 212 and the third outlet rectifier 213. This design allows the water flow to have sufficient time and space to be stably and evenly distributed inside the nozzle. The second outlet rectifier 212 includes two sets, and the two sets of second outlet rectifier 212 extend to both sides relative to the first outlet rectifier 211, arranged separately on the left and right. This layout can further optimize the water flow distribution, making the water flow more evenly inside the nozzle, thereby balancing the water volume distribution inside the nozzle and making the water flow velocity and volume of each outlet hole more balanced.

[0041] In this embodiment, four flow straighteners 21 are provided (a first outlet flow straightener 211, a second outlet flow straightener 212, and a third outlet flow straightener 213, wherein the second outlet flow straightener 212 includes two sets). These four flow straighteners 21 are directly opposite to the four water outlet holes 12 of the nozzle 1 and correspond one-to-one. Specifically, the first outlet flow straightener 211 on the side closer to the water inlet corresponds to the water outlet hole 12 on the side closer to the water inlet, the first outlet flow straightener 213 on the side farther from the water inlet corresponds to the water outlet hole 12 on the side farther from the water inlet, and the two sets of second outlet flow straighteners 212 in the middle correspond to the two water outlet holes 12 in the middle.

[0042] In a specific embodiment, the angle between the baffle plate 31 and the water inlet direction of the nozzle outlet chamber 11 is 45°-135°, and the water inlet direction between the baffle plate 31 and the adjacent flow straightener 21 matches the water outlet direction of the nozzle 1 corresponding to the adjacent flow straightener 21. For example, if the water inlet direction of the flow straightener 21 is vertically upward, then the water flow direction guided by the baffle plate 31 should also be vertically upward. In this way, when the water flows through the flow straightener 21, it can be better rectified and guided, and finally sprayed out from the water outlet 12.

[0043] In a specific implementation example, the water spray device also includes a sealing ring 4, which is fitted onto the water inlet of the faceplate 3, and the water volume contained in the area between the sealing ring 4 and the baffle plate 31 is greater than the water volume contained in the area between the baffle plate and the nearest straightening rib 21.

[0044] Secondly, this utility model proposes a toilet seat cleaning device, including a waterproof spray nozzle device as described in any of the above claims. Figure 5 A schematic diagram of the water spraying device for a toilet seat cleaning system is shown, such as... Figure 5 As shown, the toilet seat cleaning device includes a nozzle 1, an upper cover 5, a rear shell 6, a base assembly 7, a seat ring 8, and a spray bar 9.

[0045] Nozzle 1 is installed at the end of spray rod 9, which is mounted on base assembly 7 and located behind seat ring 8. The top cover 5 and rear shell 6 form the main structure of the toilet seat. Base assembly 7 is fixed to the toilet base, and seat ring 8 is the seat ring used by the user. During use, nozzle 1, controlled by spray rod 9, sprays water onto the areas of the toilet seat that need cleaning. Because nozzle 1 uses the aforementioned anti-splash nozzle device, the sprayed water is concentrated and stable, effectively cleaning the toilet seat while avoiding water splashing, thus improving cleaning effect and user experience.

[0046] Obviously, those skilled in the art can make various modifications and changes to the embodiments of this utility model without departing from the spirit and scope of this utility model. In this way, this utility model is also intended to cover such modifications and changes if they fall within the scope of the claims of this utility model and their equivalents. The word "comprising" does not exclude the presence of other elements or steps not listed in the claims. The simple fact that certain measures are described in mutually different dependent claims does not indicate that a combination of these measures cannot be used for profit. Any reference numerals in the claims should not be considered as limiting the scope.

Claims

1. A nozzle device for waterproof spraying, characterized in that, include: Nozzle and at least two flow straightening ribs arranged along the length of the nozzle; The nozzle is provided with a water outlet chamber and a water outlet hole communicating with the water outlet chamber. A flow straightening rib is provided at the position opposite to the water outlet hole. The baffle plate is located on the side of the water outlet chamber where the water outlet hole is provided. The baffle plate and the flow straightening rib are arranged sequentially along the water inlet direction, and the lowest point of the baffle plate is lower than the highest point of the adjacent flow straightening rib. The nozzle outlet chamber contains at least two water volume zones, one of which has a larger water volume than the other. The height of the straightening rib located in the relatively low water volume zone is lower than the height of the straightening rib located in the relatively high water volume zone.

2. The nozzle device for waterproof spraying as described in claim 1, characterized in that, The flow straightening ribs are directly opposite and correspond one-to-one with the nozzle outlet holes.

3. The nozzle device for waterproof spraying as described in claim 1, characterized in that, The flow straightening rib includes a first outlet flow straightening rib and a third outlet flow straightening rib, wherein the first outlet flow straightening rib is located inside the nozzle water outlet chamber near the water inlet, and the distance between the first outlet flow straightening rib and the baffle plate is less than the distance between the baffle plate and the third outlet flow straightening rib, and the height of the first outlet flow straightening rib is higher than the height of the third outlet flow straightening rib.

4. The nozzle device for waterproof spraying as described in claim 1, characterized in that, The flow straightening ribs include a first outlet flow straightening rib, a second outlet flow straightening rib, and a third outlet flow straightening rib. The area inside the nozzle water outlet chamber near the water inlet is a high water volume area, and the area away from the water inlet is a low water volume area. The first outlet flow straightening rib is located in the high water volume area, the third outlet flow straightening rib is located in the low water volume area, and the second outlet flow straightening rib is located between the first outlet flow straightening rib and the third outlet flow straightening rib. The height of the second outlet flow straightening rib is higher than the height of the third outlet flow straightening rib.

5. The nozzle device for waterproof spraying as described in claim 4, characterized in that, The distance between the first outlet rectifier and the third outlet rectifier is greater than the distance between the second outlet rectifier and the baffle plate. The distance between the first outlet rectifier and the third outlet rectifier is greater than the distance between the inner walls of the water outlet chambers on the adjacent side of the second outlet rectifier and the third outlet rectifier. The second outlet rectifier includes two sets, and the two sets of the second outlet rectifier extend to both sides relative to the first outlet rectifier, and are arranged separately on the left and right.

6. The nozzle device for waterproof spraying as described in claim 5, characterized in that, The height of the second outlet rectifier rib is higher than the height of the first outlet rectifier rib and the third outlet rectifier rib, and the height of the third outlet rectifier rib is the lowest.

7. The nozzle device for waterproof spraying as described in claim 1, characterized in that, The angle between the baffle plate and the water inlet direction of the nozzle outlet chamber is 45°-135°, and the water inlet direction between the baffle plate and the adjacent flow straightener matches the water outlet direction of the nozzle corresponding to the adjacent flow straightener.

8. The nozzle device for waterproof spraying as described in claim 1, characterized in that, The nozzle includes a nozzle housing and a nozzle cover. The nozzle cover is snapped onto the lower part of the nozzle housing. The nozzle cover is provided with flow straightening ribs in the angular direction corresponding to the water outlet of the nozzle housing, and the flow straightening ribs are in the shape of smooth arcs.

9. The nozzle device for waterproof spraying as described in claim 8, characterized in that, It also includes a face cover, which is nested with the nozzle housing and / or the nozzle cover, and the water inlet front end of the face cover is provided with the baffle plate.

10. A toilet seat cleaning device, comprising a waterproof spray nozzle device as described in any one of claims 1-9.