Spray rod self-cleaning spray head, spray rod device and closestool
By designing a self-cleaning nozzle with a self-aspirating spray bar, the system utilizes the mixture of air and liquid to form foam or aerated water, solving the problem of poor cleaning effect in traditional toilet spray bar self-cleaning technology. This achieves efficient and energy-saving spray bar cleaning, reducing equipment costs and resource waste.
Patent Information
- Application Number
- CN202520465412.6
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-03-17
- Publication Date
- 2026-02-03
- Estimated Expiration
- 2035-03-17
AI Technical Summary
Traditional toilet spray nozzle self-cleaning technology has limited effectiveness in cleaning stubborn stains and leaves many areas untouched, leading to a waste of water and energy.
The self-cleaning nozzle of the spray bar uses a self-aspirating method. By spraying cleaning agent, it uses air and liquid to mix to form foam or bubble water. The cleaning agent is arranged in a single long strip or multiple nozzles to cover the surface of the spray bar, achieving all-round cleaning.
It improves cleaning effectiveness, reduces equipment costs and noise, lowers energy consumption, thoroughly removes stubborn stains from the spray bar surface, and saves water resources.
Smart Images
Figure CN223867361U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the sanitary ware industry, and in particular to a self-cleaning nozzle and nozzle device and a toilet. Background Technology
[0002] Traditional toilet bidet self-cleaning technology relies on the self-cleaning nozzle spraying water onto the bidet surface to remove dirt. However, this cleaning method has several shortcomings in practical applications: First, water is limited in its effectiveness against stubborn stains such as urine crystals, limescale deposits, and bacterial biofilms, making thorough disinfection difficult. Second, due to the complex surface structure of the bidet, water rinsing often leaves blind spots, leading to residue buildup. Furthermore, because water is limited in its ability to clean stubborn stains, longer rinsing times or more frequent rinsing are often required to achieve basic cleanliness, significantly increasing water consumption and energy waste. Utility Model Content
[0003] This utility model addresses the technical problems existing in the prior art by providing a self-cleaning nozzle and nozzle device, as well as a toilet, which can improve the cleaning effect through self-suction.
[0004] The technical solution adopted by this utility model to solve its technical problem is: a self-cleaning nozzle for spraying cleaning agent onto the surface of a spray bar, including a spray body, wherein the nozzle body is provided with a liquid inlet channel, a mixing chamber, and a nozzle and an air intake port communicating with the mixing chamber. An acceleration hole is provided between the liquid inlet channel and the mixing chamber. Liquid entering the liquid inlet channel is accelerated into the mixing chamber through the acceleration hole, causing the mixing chamber to generate negative pressure and drawing in air through the air intake port. The air and liquid mix to form the cleaning agent. The nozzle is arranged in the form of a single elongated strip or multiple nozzles, and is arranged along a preset direction.
[0005] In a preferred embodiment, the mixing chamber has a flow channel structure with a first end and a second end at its two ends along its length. The acceleration hole is located at the first end of the mixing chamber, and the second end of the mixing chamber is closed. The air intake and the nozzle are located on the wall between the first end and the second end of the mixing chamber, and the air intake is closer to the acceleration hole than the nozzle. The preset direction is the length direction of the mixing chamber.
[0006] In a preferred embodiment, the air intake and the nozzle are staggered along the length of the mixing chamber.
[0007] In a preferred embodiment, the wall containing the nozzle is an inclined wall to output the cleaning agent at an angle toward the spray bar; the wall containing the air intake faces the spray bar.
[0008] In a preferred embodiment, the nozzle body includes a first tube and a second tube connected or integrally formed together at a preset angle. The first tube is provided with the liquid inlet channel, and the second tube is provided with the mixing chamber, the air intake port and the nozzle. The transition portion between the first tube and the second tube is provided with the acceleration hole. The preset direction is the length direction of the second tube.
[0009] This utility model also provides a spray bar device, including a spray bar and a self-cleaning nozzle as described above, wherein the nozzle is located above or to the side of the spray bar, and the preset direction is perpendicular to the length direction of the spray bar.
[0010] In a preferred embodiment, a mounting base is further included, the spray bar is slidably disposed on the mounting base along its length, and the nozzle body is snap-fitted to the mounting base.
[0011] In a preferred embodiment, the mounting base has a slot corresponding to the nozzle body. The slot opening is located on one side of the preset direction and has at least one pair of elastic buckles extending outward from the slot opening. After the nozzle body is inserted into the slot from the slot opening, it is locked by the elastic buckles to achieve anti-retraction and fixation.
[0012] This utility model also provides a toilet, including a toilet body and a spray bar device as described above.
[0013] In a preferred embodiment, the device further includes a foam liquid supply module, a switching valve, and a three-way pipe. The switching valve has a first outlet and a second outlet that can switch the water flow. The first outlet is connected to the inlet of the foam liquid supply module. The three-way pipe has a first port, a second port, and a third port that are interconnected. The first port is connected to the second outlet, the second port is connected to the outlet of the foam liquid supply module, and the third port is connected to the inlet channel of the nozzle body.
[0014] Compared with the prior art, the present invention has the following beneficial effects:
[0015] Because the nozzle body of this utility model is provided with the aforementioned liquid inlet channel, mixing chamber, and nozzle and air intake connecting the mixing chamber, and an acceleration hole is provided between the liquid inlet channel and the mixing chamber, the liquid entering the liquid inlet channel is accelerated into the mixing chamber through the acceleration hole, causing negative pressure to be generated in the mixing chamber and air to be drawn in through the air intake. The air and liquid mix to form a cleaning agent for cleaning the surface of the spray bar. This cleaning agent can be foam or aerated water depending on the liquid entering the liquid inlet channel. When the cleaning agent is foam, this utility model can not only improve the cleaning effect, but also foam through self-aspiration. The elimination of the need for an air pump allows for a more compact overall structure, facilitating installation and layout. It also eliminates the need for an air pump and its related components, reducing manufacturing and maintenance costs, eliminating noise generated during air pump operation, lowering equipment failure rates, and reducing energy consumption. When the cleaning agent is aerated water, the micro-impact force generated by the bursting of bubbles helps loosen and peel away dirt, especially stubborn stains, from the spray bar surface. The bubbles can also penetrate into small crevices or complex structures on the spray bar, cleaning areas that are difficult to reach with ordinary water, thus significantly improving the cleaning effect on the spray bar surface. Furthermore, the nozzles of this invention are arranged in a single elongated shape or multiple nozzles along a preset direction, increasing the coverage area of the cleaning agent on the spray bar surface per unit time, thereby facilitating all-around cleaning and improving the cleaning effect.
[0016] The present invention will be further described in detail below with reference to the accompanying drawings and embodiments; however, the present invention, including a self-cleaning nozzle and nozzle device and a toilet, is not limited to the embodiments described herein. Attached Figure Description
[0017] Figure 1 This is an exploded view of the toilet spray bar device of this utility model;
[0018] Figure 2 This is a three-dimensional structural diagram of the self-cleaning nozzle of the spray bar of this utility model;
[0019] Figure 3 This is a side view of the self-cleaning nozzle of the spray bar of this utility model;
[0020] Figure 4 yes Figure 3 A cross-sectional view (AA) of the self-cleaning nozzle of the spray bar of this utility model.
[0021] Figure 5 This is a three-dimensional structural schematic diagram of the spray bar device of this utility model;
[0022] Figure 6 This is a cross-sectional view of the spray bar device of this utility model;
[0023] Figure 7 This is a three-dimensional structural diagram of another self-cleaning nozzle of this utility model;
[0024] Figure 8 This is a cross-sectional view of another self-cleaning nozzle of this utility model;
[0025] Figure 9 This is a cross-sectional view of the spray bar device of this utility model using another type of self-cleaning spray bar nozzle;
[0026] Figure 10 This is a three-dimensional structural diagram of the toilet of this utility model (showing a part);
[0027] Figure 11 This is a partial structural diagram of 10;
[0028] Figure 12 This is a three-dimensional structural diagram of the spray bar device of this utility model from another angle;
[0029] In the diagram, 1. Nozzle body; 11. Liquid inlet channel; 12. Mixing chamber; 13. Nozzle; 14. Air intake port; 15. Acceleration hole; 16. First tube section; 17. Second tube section; 3. Spray bar; 4. Fixing base; 41. Slot; 42. Elastic claw; 5. Toilet body; 6. Foam liquid supply module; 7. First solenoid valve; 8. Instant heating module; 9. Second solenoid valve; 10. T-connector; 20. Water pump. Detailed Implementation
[0030] In this utility model, the terms "first," "second," etc., are used only to distinguish similar objects, not to describe a specific order or sequence, nor should they be construed as indicating or implying relative importance. The use of terms such as "upper," "lower," "left," "right," "front," "rear," "inner," "outer," and "top / bottom" to indicate orientation or positional relationships is based on the orientation or positional relationships shown in the accompanying drawings, and is only for the convenience of describing this utility model, not to indicate or imply that the device referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, it should not be construed as a limitation on the scope of protection of this utility model. Those skilled in the art can understand the specific meaning of the above terms in this application according to the specific circumstances.
[0031] Please see Figures 1-6As shown, this utility model discloses a self-cleaning nozzle for a spray bar, comprising a nozzle body 1 for spraying cleaning agent onto the surface of a spray bar 3. The nozzle body 1 has a liquid inlet channel 11, a mixing chamber 12, and a nozzle 13 and an air intake 14 connecting the mixing chamber 12. An acceleration hole 15 is provided between the liquid inlet channel 11 and the mixing chamber 12. Liquid entering the liquid inlet channel 11 is accelerated into the mixing chamber 12 through the acceleration hole 15, causing the mixing chamber 12 to generate negative pressure and drawing in air through the air intake 14. The air and liquid mix to form a cleaning agent, which can be foam or sparkling water. The nozzle 3 is arranged in a single elongated shape along a preset direction, i.e., there is only one nozzle, and the nozzle is an elongated hole arranged along the preset direction, i.e., the length direction of the elongated hole is located in the preset direction. In this way, this utility model can increase the coverage area of the cleaning agent on the surface of the spray bar per unit time, thereby helping to achieve all-round cleaning and improve the cleaning effect.
[0032] Preferably, the mixing chamber 12 has a flow channel structure, with a first end and a second end at its two ends along its length. The acceleration hole 15 is located at the first end of the mixing chamber 12, and the second end of the mixing chamber 12 is closed. The intake port 14 and the nozzle 13 are located on the wall between the first end and the second end of the mixing chamber 12. The intake port 14 is closer to the nozzle 13 than the nozzle 13, and the intake port 14 and the nozzle 13 are staggered along the length of the mixing chamber 12. The intake port 14 is square, but not limited to this; the intake port 14 can also be circular or oblong, etc.
[0033] The wall containing the nozzle 13 is an inclined wall, designed to output cleaning agent at an angle towards the spray bar 3; the wall containing the air intake 14 is approximately horizontal and faces the spray bar 3. The nozzle body 1 specifically includes a first tube 16 and a second tube 16 connected or integrally formed at a preset angle. The first tube 16 has a liquid inlet channel 11, and the second tube 16 has a mixing chamber 12, an air intake 14, and a nozzle 13. An acceleration hole 15 is provided in the transition section between the first and second tubes 16. During installation, the first tube 16 is located on the left or right side of the spray bar 3, and the second tube 16 spans across the top of the spray bar 3, such as... Figure 5 As shown; the inclined wall where the nozzle 13 is located is roughly the front half of the bottom wall of the second pipe section 16, and the wall where the suction port 14 is located is roughly the rear half of the bottom wall of the second pipe section 16. Therefore, the aforementioned preset direction is perpendicular to the length direction of the spray bar. Since the cross-section of the spray bar is roughly square, the aforementioned preset direction is the width direction of the spray bar. When the elongated nozzle 13 sprays the cleaning agent, the cleaning agent can completely cover the surface of the spray bar in the width direction, such as... Figure 6 As shown in the figure, the arrows indicate the flow direction of the cleaning agent.
[0034] Another structure of the self-cleaning nozzle of this utility model is as follows: Figures 7-9As shown: The nozzle body 1 has multiple nozzles 13, which are arranged at intervals along a preset direction. Each nozzle 13 is roughly waist-shaped, but not limited to this. In other embodiments, each nozzle is circular or square, etc. Thus, when all the nozzles 13 spray cleaning agent, the cleaning agent can completely cover the surface of the spray bar in the width direction, such as... Figure 9 As shown in the figure, the arrows indicate the flow direction of the cleaning agent.
[0035] The present invention relates to a self-cleaning nozzle for a spray bar, the actual application of which is as follows: Figure 5 As shown, the second tube 16 of the nozzle body 1 is arranged along the left-right direction (i.e., the width direction of the spray bar 3) of the spray bar 3 and is located above the spray bar 3. The first tube 16 of the nozzle body 1 is located on the left or right side of the spray bar 3. As mentioned above, the cleaning agent can be foam or sparkling water. Therefore, when foam cleaning is achieved, a foaming solution is provided to the liquid inlet channel 11 of the nozzle body 1. When sparkling water cleaning is achieved, clean water or an aqueous solution with disinfection or sterilization function is provided to the liquid inlet channel 11 of the nozzle body 1. The specific working process is as follows:
[0036] When the foaming solution is provided, it enters the inlet channel 11 of the nozzle body 1, is accelerated by the acceleration hole 15, and then enters the mixing chamber 12 at high speed. This creates a negative pressure in the mixing chamber 12, drawing in air through the air intake 14. The air mixes with the foaming solution to produce foam, which is then sprayed out from the nozzle 13 to clean the upper surface of the spray bar 3. The foam has strong adhesion and penetrability, effectively encapsulating and breaking down stubborn dirt on the surface of the spray bar, especially grease, dust, and other difficult-to-remove contaminants, thereby enhancing the cleaning ability of the spray bar 3 surface. In addition, the nozzle 13 is elongated or has multiple nozzles, allowing the sprayed foam to cover the upper surface of the spray bar 3 in the left-right direction (i.e., the width direction of the spray bar), providing all-around cleaning and improving the cleaning effect.
[0037] When clean water or an aqueous solution with disinfection or sterilization function is provided, the clean water or aqueous solution is accelerated through the acceleration hole 15 and enters the mixing chamber 12 at high speed, causing the mixing chamber 12 to generate negative pressure and draw in air through the air intake 14. The air mixes with the clean water or aqueous solution to form bubble water, which is sprayed out from the nozzle 13 and cleans the upper surface of the spray bar 3.
[0038] To thoroughly clean the spray bar 3, in practical applications, a foaming solution can first be provided to the nozzle body 1 to prioritize foam cleaning of the spray bar 3. Then, clean water can be provided to the nozzle body 1 to rinse away the foam and the dirt it carries, ensuring that the surface of the spray bar 3 is thoroughly cleaned and avoiding residue. During the cleaning process, the spray bar 3 moves synchronously forward and / or backward along its length, allowing the entire upper surface of the spray bar 3 to be cleaned from all angles.
[0039] Therefore, the self-cleaning nozzle of this invention uses a self-aspirating method to clean the nozzle 3 with foam or bubble water. Both foam and bubble water cleaning improve the cleaning effect on the nozzle. In foam cleaning mode, because this invention can achieve self-foaming through self-aspirating, there is no need for an air pump, ensuring efficient foaming while optimizing cost, space, and performance, significantly improving the practicality and economy of this invention. Specifically, the nozzle 13 of the nozzle body 1 is arranged in a single elongated shape or multiple nozzles along a preset direction, which increases the coverage area of the cleaning agent on the nozzle surface per unit time, thus helping to achieve all-round cleaning and improving the cleaning effect.
[0040] Please see Figures 1-9 As shown, a spray bar device of this utility model includes a spray bar 3 and a self-cleaning spray head as described above. The nozzle 13 of the nozzle body 1 is located above or to the side of the spray bar 3. Specifically, the second tube 16 of the nozzle body 1 is arranged along the left-right direction (i.e., the width direction of the spray bar 3) and is located above the spray bar 3, while the first tube 16 of the nozzle body 1 is located on the left or right side of the spray bar 3.
[0041] This utility model also includes a fixed base 4, on which the spray bar 3 is slidably disposed along its extension direction, and the self-cleaning nozzle of the spray bar is installed on the fixed base 4. Specifically, the spray bar 3 is slidably disposed on the fixed base 4 in the front-back direction, and the self-cleaning nozzle of the spray bar is detachably snapped to the fixed base 4. Specifically, the front end of the fixed base 4 is provided with a slot 41 corresponding to the second tube portion 16 of the nozzle body 1. The slot opening of the slot 41 is located on one side of the fixed base 4 in the left-right direction, and is provided with at least a pair of elastic claws 42 extending outward from the slot opening. After the second tube portion 16 of the nozzle body 1 is inserted into the slot 41 through the insertion port of the slot 41, it is locked by the elastic claws 42 to achieve anti-retraction and fixation.
[0042] For details on the structure and working principle of the self-cleaning nozzle, please refer to the previous description; it will not be repeated here.
[0043] Please see Figures 1-12 As shown, the present invention provides a toilet, which is an intelligent toilet, comprising a toilet body 5 and a spray bar device as described above.
[0044] As a preferred embodiment, this invention also includes a foaming liquid supply module 6, a switching valve, and a three-way pipe 10. The foaming liquid supply module 6 provides foaming solution to the inlet channel 11 of the nozzle body 1. Specifically, the foaming liquid supply module 6 has a foaming concentrate storage chamber and at least one mixing chamber. The foaming concentrate and water are mixed and diluted in the mixing chamber before being output. This is conventional technology and will not be described in detail. In other embodiments, the foaming liquid supply module can directly supply foaming solution without dilution. The switching valve has a first outlet and a second outlet that can switch between water output. The first outlet is connected to the inlet of the foaming liquid supply module 6. The three-way pipe 10 has a first port, a second port, and a third port that are interconnected. The first port is connected to the second outlet, the second port is connected to the outlet of the foam diluent module 6, and the third port is connected to the inlet channel 11 of the nozzle body 1. Therefore, the self-cleaning nozzle of this invention can perform foam cleaning or water cleaning on the nozzle 3.
[0045] The switching valve is specifically the first solenoid valve 7. This utility model also includes a second solenoid valve 9, an instant heating module 8, and a water pump 20. The second solenoid valve 9 is used to control whether the instant heating module 8 is filled with water. The instant heating module 8 can output warm water to the spray bar 3 to realize posterior washing and / or feminine washing. The outlet of the instant heating module 8 is connected to the inlet of the water pump 20, and the outlet of the water pump 20 is connected to the inlet of the first solenoid valve 7.
[0046] When foam cleaning is performed, the first solenoid valve 7 outputs water only from the first outlet. When it is necessary to switch to clean water cleaning, the first solenoid valve 7 switches to the state where water outputs only from the second outlet.
[0047] The present invention relates to a self-cleaning nozzle and nozzle device and a toilet. The parts not described herein are the same as or can be implemented using existing technologies.
[0048] The above embodiments are only used to further illustrate a self-cleaning nozzle and nozzle device and toilet of the present invention. However, the present invention is not limited to the embodiments. Any simple modifications, equivalent changes and modifications made to the above embodiments based on the technical essence of the present invention shall fall within the protection scope of the technical solution of the present invention.
Claims
1. A self-cleaning nozzle for spraying cleaning agent onto the surface of a spray bar, comprising a nozzle body, characterized in that: The nozzle body is provided with a liquid inlet channel, a mixing chamber, and a nozzle and an air intake port that connect the mixing chamber. An acceleration hole is provided between the liquid inlet channel and the mixing chamber. The liquid entering the liquid inlet channel is accelerated into the mixing chamber through the acceleration hole, which generates negative pressure in the mixing chamber and draws in air through the air intake port. The air and liquid mix to form the cleaning agent. The nozzle is provided in the form of a single elongated strip or multiple nozzles and is arranged along a preset direction.
2. The self-cleaning nozzle according to claim 1, characterized in that: The mixing chamber has a flow channel structure with a first end and a second end at its two ends along its length. The acceleration hole is located at the first end of the mixing chamber, and the second end of the mixing chamber is closed. The air intake and the nozzle are located on the wall between the first end and the second end of the mixing chamber, and the air intake is closer to the acceleration hole than the nozzle. The preset direction is the length direction of the mixing chamber.
3. The self-cleaning nozzle according to claim 2, characterized in that: The air intake and the nozzle are staggered along the length of the mixing chamber.
4. The self-cleaning nozzle according to claim 1, characterized in that: The wall containing the nozzle is an inclined wall, so that the cleaning agent is output at an angle towards the spray bar; the wall containing the air intake faces the spray bar.
5. The self-cleaning nozzle for spray bars according to any one of claims 1-4, characterized in that: The nozzle body includes a first tube and a second tube connected or integrally formed together at a preset angle. The first tube is provided with the liquid inlet channel, and the second tube is provided with the mixing chamber, the air intake port and the nozzle. The transition portion between the first tube and the second tube is provided with the acceleration hole. The preset direction is the length direction of the second tube.
6. A spray boom device, comprising a spray boom, characterized in that: It also includes a self-cleaning nozzle for a spray bar as described in any one of claims 1-5, wherein the nozzle is located above or to the side of the spray bar, and the preset direction is perpendicular to the length direction of the spray bar.
7. The spray boom device according to claim 6, characterized in that: It also includes a mounting base, on which the spray bar is slidably disposed along its length, and the nozzle body is snap-fitted to the mounting base.
8. The spray boom device according to claim 7, characterized in that: The mounting base has a slot corresponding to the nozzle body. The slot opening is located on one side of the preset direction and has at least one pair of elastic buckles extending outward from the slot opening. After the nozzle body is inserted into the slot from the slot opening, it is locked by the elastic buckles to achieve anti-retraction and fixation.
9. A toilet, comprising a toilet body, characterized in that: It also includes the spray bar device as described in any one of claims 6-8.
10. The toilet according to claim 9, characterized in that: It also includes a foam liquid supply module, a switching valve and a three-way pipe. The switching valve has a first outlet and a second outlet that can switch the water output. The first outlet is connected to the inlet of the foam liquid supply module. The three-way pipe has a first port, a second port, and a third port that are interconnected. The first port is connected to the second water outlet, the second port is connected to the outlet of the foam liquid supply module, and the third port is connected to the inlet channel of the nozzle body.