A nozzle assembly with oscillating flushing

Abstract

This invention provides a spray nozzle assembly with oscillating rinsing. The oscillating part includes a nozzle and a permanent magnet, connected to the water supply part via a soft rubber connection. The oscillating drive part uses an electromagnet to alternately attract and repel the permanent magnet, causing the nozzle to oscillate reciprocally within an ultra-thin space. The assembly features dual independent water channels and two or more sets of spray nozzles, with a flow rate ≤430mL / min, achieving Class I water efficiency. It automatically returns to center after power failure, exhibiting a simple structure, long lifespan, and low cost.

Description

Technical Field

[0001] This utility model relates to a toilet component, specifically to a nozzle assembly with a oscillating flushing function, which is applicable to smart toilets. Background Technology

[0002] With the continuous advancement of technology and the improvement of people's living standards, smart toilets, as a type of sanitary ware that enhances the quality of life, are gradually gaining market favor. As a smart toilet, cleaning is one of the core functions that users care about most. Currently, smart toilets generally use two water outlet methods for cleaning:

[0003] 1. Fixed-hole direct spray: One or more fixed holes are made on the ceramic cleaning surface, and a constant water column is sprayed directly onto the human body by relying on pump pressure.

[0004] 2. Rotational scanning: A miniature motor is added in front of the fixed hole to directly drive the water outlet to rotate or swing, so that the water column scans back and forth in the fan-shaped area to expand the cleaning area.

[0005] The above two methods have the following drawbacks:

[0006] (1) Direct injection through fixed hole

[0007] To achieve the national standard Class 1 water efficiency (flow rate ≤ 430 mL / min), the orifice diameter must be reduced, resulting in a sharp increase in water column pressure and a noticeable stinging sensation for the user. If the orifice diameter is enlarged to reduce the pressure, the instantaneous flow rate will exceed the standard, failing to achieve the national standard Class 1 water efficiency, and the flushing power will be significantly reduced.

[0008] (2) Rotational scanning

[0009] The overall structure is complex and the cost is high. The rotating mechanism is prone to failure after long-term repeated use. Its rotational vibration frequency is greatly limited, and the cleaning effect is difficult to achieve the expected goal, especially the national standard level 1 water efficiency.

[0010] The technical problem that this invention aims to solve is:

[0011] 1. How to achieve a perceptible flush volume of 800 mL / min while maintaining a flow rate limit of no more than 430 mL / min, thus achieving the first-class water efficiency level for smart toilets;

[0012] 2. How to achieve overall miniaturization so that it can be directly installed into an ultra-thin toilet seat, with the overall thickness of the components being ≤2CM;

[0013] 3. At ultra-thin thicknesses, the temperature rise issue also needs to be addressed;

[0014] 4. How to solve the problem of automatic return to center after power failure, ensuring that the nozzle is centered when no swinging is required, and ensuring normal operation even when no swinging is required. Utility Model Content

[0015] The purpose of this utility model is to address the aforementioned problems and shortcomings by providing an ultra-thin spray head assembly with oscillating rinsing, comprising:

[0016] Oscillating part: equipped with at least one permanent magnet, with the nozzle's spray port facing outwards;

[0017] The water supply section is connected to the water passage of the swing section via a connecting soft rubber;

[0018] The oscillating drive unit includes at least one electromagnet with a gap between it and a permanent magnet. The electromagnet is electrically connected to an external drive board and is controlled by the external drive board to switch the polarity of the electromagnet to attract and repel the permanent magnet, thereby driving the oscillating unit to oscillate back and forth.

[0019] The nozzle assembly with oscillating rinsing is characterized in that the permanent magnet oscillating part and the oscillating part are arranged vertically parallel.

[0020] The nozzle assembly with oscillating rinsing is characterized in that the oscillating part of the permanent magnet is arranged on the same plane as the oscillating part, the permanent magnet is disposed on one end side of the oscillating part and is perpendicular to the plane where the nozzle is located; the permanent magnet is directly opposite the magnetic core of the electromagnet, and there is a gap between the permanent magnet and the electromagnet.

[0021] The nozzle assembly with oscillating rinsing is characterized in that the permanent magnet is either two monopole magnets with left and right end faces or one bipole magnet with opposite polarities.

[0022] The nozzle assembly with oscillating rinsing is characterized in that there are two electromagnets, each matched with one of the two permanent magnets.

[0023] The nozzle assembly with oscillating rinsing is characterized in that the connecting soft rubber is made of a material with a hardness of 30 to 85 degrees; and there is a gap of 0.1 to 2.0 mm between the electromagnet and the permanent magnet.

[0024] The described nozzle assembly with oscillating rinsing is characterized in that the oscillating part automatically returns to center via a connecting soft rubber after the electromagnet is de-energized.

[0025] The nozzle assembly with oscillating flushing is characterized in that the oscillating part is provided with an oscillation amplitude limiting mechanism on both sides.

[0026] The aforementioned spray nozzle assembly with oscillating rinsing is characterized in that it includes at least one water path, the water path being connected to an external water inlet pipeline at the inlet, and the water path being connected to the oscillating part water path at the outlet via a connecting soft rubber.

[0027] The described nozzle assembly with oscillating rinsing is characterized in that the water path is a dual water path, the electromagnet is sealed and waterproof, and water inlet passages are provided on both sides of the electromagnet, namely a first water inlet path and a second water inlet path; the water supply section has a first water outlet path and a second water outlet path on both sides, the first water outlet path is connected to the first water inlet path; the second water outlet path is connected to the second water inlet path; the nozzle has two sets of spray nozzles, the first set of spray nozzles is connected to the first water outlet path and has one spray nozzle; the second set of spray nozzles is connected to the second water outlet path and has 2 to 5 spray nozzles; the diameter of the first set of spray nozzles is larger than the diameter of the second set of spray nozzles.

[0028] This utility model has the following advantages for its oscillating spray nozzle assembly:

[0029] 1. Enhanced cleaning effectiveness and comfort with multi-point spray and oscillating design: By oscillating the nozzles, multi-point spraying is achieved, allowing the water flow to cover a wider area, avoiding the limitation of traditional fixed nozzles that can only concentrate on rinsing a single point. This design not only improves the comprehensiveness of cleaning but also reduces direct impact on the skin through the oscillating water flow, avoiding the stinging sensation caused by concentrated water flow, and significantly improving user comfort.

[0030] 2. Water Conservation and Environmental Protection, Achieving Level 1 Water Efficiency Standards: This spray nozzle assembly is designed to meet the national Level 1 water efficiency standard, meaning it can achieve good cleaning results even with a flow rate not exceeding 430 ml / min. Compared to traditional spray nozzles, this design significantly reduces water consumption while maintaining cleaning effectiveness, contributing to water conservation and meeting environmental protection requirements. High-Efficiency Water Flow Utilization: By optimizing the nozzle's spray outlet design and water flow path, this spray nozzle assembly can utilize water flow more efficiently, ensuring that every drop of water achieves maximum cleaning effect, further improving water resource utilization efficiency.

[0031] 3. Structural optimization and cost control, compact design: The nozzle assembly adopts a compact structural design with an overall thickness of no more than 2 cm, making it suitable for installation on ultra-thin toilet seats without taking up extra space, thus meeting the high requirements of modern homes for space utilization.

[0032] 4. Cost-effectiveness: By adopting an electromagnet drive method, this design is not only simpler in structure than the traditional motor drive, but also lower in cost. Electromagnets have a long service life and low maintenance costs, further reducing the overall cost of the product and enhancing its market competitiveness.

[0033] 5. Material Selection: The connecting soft rubber in the nozzle assembly is made of soft rubber material with a hardness of 30 to 80 degrees. This material not only has good flexibility to adapt to the oscillation of the nozzle, but also has fatigue resistance and hydrolysis resistance, ensuring the long-term stable use of the product and reducing maintenance or replacement costs caused by material aging.

[0034] 6. Technological Innovation and Reliability: Employing Electromagnetic Drive Technology: Electromagnetic drive technology is used to precisely control the nozzle's oscillation by controlling the energization, de-energization, and polarity switching of the electromagnet. This drive method not only has a fast response speed but also high control precision, enabling rapid and stable water flow oscillation, ensuring consistent and reliable cleaning results. Attached Figure Description

[0035] Figure 1 This is an exploded schematic diagram of a first embodiment of a nozzle assembly with oscillating flushing;

[0036] Figure 2 This is a cross-sectional view of a first embodiment of a nozzle assembly with oscillating flushing;

[0037] Figure 3 This is a schematic diagram of the first embodiment of the nozzle assembly;

[0038] Figure 4 It is a 3D view of the nozzle body;

[0039] Figure 5 It is a 3D diagram of the connector;

[0040] Figure 6 This is a 3D view of the pivot pin;

[0041] Figure 7 This is an exploded view of a second embodiment of a nozzle assembly with oscillating flushing;

[0042] Figure 8 This is a cross-sectional view of a second embodiment of a nozzle assembly with oscillating flushing;

[0043] Figure 9 This is a schematic diagram of the nozzle cover of the nozzle assembly;

[0044] Figure 10 This is a schematic diagram of the electromagnetic connector in the second embodiment. Detailed Implementation

[0045] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0046] The purpose of this invention is to design a spray nozzle with oscillating rinsing that is suitable for ultra-thin smart toilet seats and can achieve 3D rinsing. The nozzle design meets the national standard for Class I water efficiency performance.

[0047] The nozzle assembly includes: a oscillating part, which has a nozzle and at least one permanent magnet. The nozzle's spray opening faces outward, and the permanent magnet is located at one end or the upper part of the oscillating part; a water supply part, the inner side of which is connected to the water passage of the water supply part via a connecting soft rubber; and an oscillating drive part, which includes at least one electromagnet electrically connected to an external drive plate. The electromagnet faces the permanent magnet, and the external drive plate controls the energization, de-energization, and polarity switching of the electromagnet to achieve attraction and repulsion of the permanent magnet, thereby driving the oscillating part to oscillate and achieving controlled oscillation of the nozzle. The housings of the oscillating part, water supply part, and drive part are all made of rigid plastic material, except for the connecting soft tubing. When the user starts the flushing process, the external drive plate continuously attracts or pushes the permanent magnet by controlling whether the electromagnet is energized and its polarity, causing the nozzle on the permanent magnet to oscillate as well.

[0048] When there is only one permanent magnet, when the output polarity of the electromagnet facing the permanent magnet is opposite to the magnetic pole of the permanent magnet facing the electromagnet, the swinging part is attracted to the electromagnet. After a certain delay, the polarity of the electromagnet is switched, and when the output polarity of the electromagnet facing the permanent magnet is the same as the magnetic pole of the permanent magnet facing the electromagnet, the swinging part is pushed away from the electromagnet. By periodically switching the polarity and controlling the period, the swinging part can be controlled to swing back and forth, thereby controlling the oscillation of the nozzle, and thus realizing the periodic oscillation of the cleaning water spray.

[0049] When there are two permanent magnets, they are arranged side by side on the end face of the swing part, with opposite polarities. When there is only one matching electromagnet, the electromagnet works and periodically switches its magnetism. When the electromagnet works, it will inevitably have the same magnetic pole as one of the two permanent magnets and the opposite magnetic pole as the other. The swing part on the side with the same magnetic pole is pushed away, and the swing part on the side with the opposite magnetic pole is attracted. The polarity of the electromagnet is periodically switched, so as to drive the swing part to swing left and right in a regular manner.

[0050] To ensure that the swing amplitude does not exceed the specified range, it is necessary to set the swing part with the necessary limiting structure to ensure that the water spray direction or angle of the nozzle is too large or out of control.

[0051] The choice of material for the connecting soft rubber is also crucial. If it is too soft, its support is not strong and the nozzle direction is not easy to control. If it is too hard, the swing amplitude is limited and the attraction or pushing force of the electromagnet is required to be higher. Through a large number of experiments, a hardness of 30 to 85 degrees was adopted, among which 60 to 70 degrees is more effective.

[0052] The first embodiment of this utility model, Figure 1 This is an exploded schematic diagram of a first embodiment of a nozzle assembly with oscillating flushing; Figure 2 This is a cross-sectional view of a first embodiment of a nozzle assembly with oscillating flushing; Figure 3This is a schematic diagram of the first embodiment of the nozzle assembly; Figure 4 It is a 3D view of the nozzle body; Figure 5 It is a 3D diagram of the connector; Figure 6 This is a 3D diagram of the pivot pin:

[0053] A 3D cleaning nozzle assembly for a smart toilet was specifically designed, comprising: a swing section, a swing drive section, and a water supply section. The swing section is implemented by a nozzle assembly 3, the swing drive section by a connector 6, and the water supply section by a nozzle body 1. The nozzle body 1 has water inlet passages on both sides, a connecting window 13 and a pin hole 12 in the middle. The connecting window has a water passage hole connected to the water inlet passage; the connecting window 13 has two passages, each connected to one of the two side water inlet passages. The pin hole is located in the center and is used to fix a pivot pin. The other end of the pivot pin passes through the nozzle assembly, serving both to fix and limit the position of the nozzle assembly, ensuring that the nozzle assembly is essentially centered.

[0054] The nozzle assembly includes a nozzle upper cover 31, connecting soft rubber 32, and a nozzle lower cover 33. The nozzle lower cover is matched with the connecting window and a peripheral sealing connection is achieved through microwave welding. The number of connecting soft rubber 32 is matched with the number of water passage holes. The nozzle upper cover 31 has nozzles with the same number of connecting soft rubber 32. The nozzles are set on one side of the nozzle upper cover. The other side of the nozzle upper cover has a permanent magnet mounting position 31A and a through hole 31B. A permanent magnet 4 is set on the permanent magnet mounting position 31A. Under no external force, the nozzles, water passage holes, and connecting soft rubber of each group are concentrically arranged. Under the action of an external magnetic field, the permanent magnet will be attracted or repelled, thereby driving the nozzle set on one side of the nozzle upper cover to swing. It can be designed to swing back and forth or left and right as needed.

[0055] The connector 6 has water inlet passages on both sides and an electromagnet hole 63 in the middle. An electromagnet 8 is installed in the electromagnet hole 63. The electromagnet is electrically connected to an external control module through a wire. The electromagnet 8 is sealed in the electromagnet hole 63. The magnetic core of the electromagnet 8 is arranged parallel to the water inlet passage, and one end of the magnetic core of the electromagnet 8 faces the permanent magnet. The water outlet side of the water inlet passage is provided with a water outlet connector, which has a sealing groove 61 and a locking protrusion 62. The water inlet side of the water inlet passage is provided with a water inlet connector, which is matched with the water outlet connector. The water inlet connector has a locking hole 11 that matches the locking protrusion 62. After the sealing ring 7 is installed on the sealing groove 61 of the water outlet connector, it is inserted into the water inlet connector. The locking protrusion 62 is locked into the locking hole 11. There is a gap between one end of the electromagnet 8 and the permanent magnet. The electromagnet is sealed and waterproof. The connector 6 has water inlet passages on both sides, namely the first water inlet and the second water inlet. The nozzle body 1 has a first water outlet and a second water outlet on both sides. The first water outlet is connected to the first water inlet. The second water outlet is connected to the second water inlet. The connecting window has two water passages, which are connected to the first water outlet and the second water outlet respectively. The nozzle assembly 3 has two sets of spray nozzles. The first set of spray nozzles is connected to the first water outlet and has one spray nozzle. The second set of spray nozzles is connected to the second water outlet and has 2 to 5 spray nozzles. The diameter of the first set of spray nozzles is larger than the diameter of the second set of spray nozzles. The purpose of having two sets of jet nozzles on the nozzle assembly 3 is to cater to the characteristics of men and women respectively. Generally, the first set of jet nozzles is connected to a single water inlet channel, with a relatively large diameter and a large water flow, which is generally suitable for men. The second set of jet nozzles usually has 2 to 5 jet nozzles, which are connected to another water inlet channel. The diameter of the jet nozzles in the second set is smaller than that of the first set, and the diameters of the nozzles can be the same or different. The water flow in the second set is relatively gentle and is more suitable for men. The first and second sets of jet nozzles can work individually or simultaneously.

[0056] Two permanent magnet mounting positions 31A are arranged side by side, with two permanent magnets of opposite polarity mounted on each position 31A; alternatively, one permanent magnet mounting position 31A may contain two permanent magnets of opposite polarity; or a single end-face bipolar magnet may be used. The nozzle assembly is connected to and limited by a shaft pin 5. One end of the shaft pin 5 is interference-fitted with the pin hole 12 of the nozzle body 1; the other end of the shaft pin 5 is clearance-fitted with the through hole 31B of the nozzle assembly 3. The purpose of the shaft pin is to limit leftward or rightward swinging. By continuously changing the current direction of the electromagnet, the nozzle assembly is driven to continuously swing left and right, thereby achieving 3D cleaning of the human body. The through hole 31B and the shaft pin 5 are clearance-fitted. The shaft pin 5 is also provided with an oil groove 51 for lubrication between the shaft pin and the hole. The nozzle body 1 and the sealing cover 2 are sealed by ultrasonic welding; the nozzle assembly 3 and the nozzle body 1 are sealed by ultrasonic welding. The shaft pin 5 is also provided with an oil groove 51, which serves to lubricate the shaft pin and the hole, further reducing resistance and lowering the magnetic force required to drive the swing.

[0057] The second embodiment of this utility model Figure 7 This is an exploded view of a second embodiment of a nozzle assembly with oscillating flushing; Figure 8 This is a cross-sectional view of a second embodiment of a nozzle assembly with oscillating flushing; Figure 9 This is a schematic diagram of the nozzle cover of the nozzle assembly; Figure 10 This is a schematic diagram of the electromagnetic connector in the second embodiment. Compared to the first embodiment, there are differences in the design of the following components: the nozzle cover 9 and electromagnet 8 of the nozzle assembly 3 are replaced by an electromagnetic induction coil 10; the connector 6 is replaced by an electromagnetic connector 11; and the permanent magnet 4 is replaced by a multi-pole magnet 12. The nozzle cover 9 has a pin hole 9A, and a mounting position 9B for the multi-pole magnet 12 is provided on the axis of the pin hole 9A. The electromagnetic connector 11 has a mounting hole 11A for mounting the electromagnetic induction coil 10, and the axis of the mounting hole 11A is aligned with the axis of the pin hole 9A. Since the multipole magnet 12 is fixedly installed on the mounting position 9B, and the electromagnetic induction coil 10 is fixedly installed on the mounting hole 11A of the connector 11; and part of the electromagnetic induction coil is sleeved outside the multipole magnet, thus forming a motor stator-moving element relationship; when the electromagnetic induction coil is energized, it can drive the multipole magnet 12 to rotate the nozzle cover 9 on the axis. By changing the current direction of the electromagnetic induction coil, the nozzle can be made to swing to the left or right, thereby achieving 3D cleaning of the human body.

[0058] In another embodiment of this utility model, the permanent magnet 4 is replaced with a vibration motor. By controlling the operation of the vibration motor, a lateral vibration is generated when the vibration motor is working, thereby driving the nozzle to swing left and right, thus achieving 3D cleaning of the human body.

[0059] The above-disclosed embodiments are merely examples of the present utility model and should not be construed as limiting the scope of the present invention. Those skilled in the art can understand that implementing all or part of the above embodiments and making equivalent changes in accordance with the claims of the present utility model still fall within the scope of the present utility model.

Claims

1. A nozzle assembly with oscillating flushing, characterized in that, include: Oscillating part: equipped with at least one permanent magnet, with the nozzle's spray port facing outwards; The water supply section is connected to the water passage of the swing section via a connecting soft rubber; The oscillating drive unit includes at least one electromagnet with a gap between it and a permanent magnet. The electromagnet is electrically connected to an external drive board and is controlled by the external drive board to switch the polarity of the electromagnet to attract and repel the permanent magnet, thereby driving the oscillating unit to oscillate back and forth.

2. The nozzle assembly with oscillating flushing according to claim 1, characterized in that, The permanent magnet swinging part and the swinging part are located on the same side and placed one above the other.

3. The nozzle assembly with oscillating flushing according to claim 1, characterized in that, The permanent magnet was replaced with a vibration motor.

4. The nozzle assembly with oscillating flushing according to claim 1, characterized in that, The oscillating part of the permanent magnet is located on both sides at the same height. The permanent magnet is located at one end of the oscillating part and is perpendicular to the plane of the nozzle. The permanent magnet is directly opposite the magnetic core of the electromagnet.

5. The nozzle assembly with oscillating flushing according to claim 4, characterized in that, The permanent magnet consists of two single-pole magnets on the left and right sides or one double-pole magnet on the left and right sides, with opposite polarities on the left and right sides.

6. The nozzle assembly with oscillating flushing according to claim 5, characterized in that, There are two electromagnets, each matched with one of the two permanent magnets.

7. The nozzle assembly with oscillating flushing according to claim 5, characterized in that, The connecting soft adhesive is made of a material with a hardness of 30 to 85 degrees; there is a gap of 0.1 to 2.0 mm between the electromagnet and the permanent magnet.

8. The nozzle assembly with oscillating flushing according to claim 6, characterized in that... The swinging part automatically returns to center via the connecting soft rubber after the electromagnet is de-energized; swinging amplitude limiting mechanisms are provided on both sides of the swinging part.

9. The nozzle assembly with oscillating flushing according to claim 6, characterized in that, It includes at least one water path, which is connected to an external water inlet pipeline at the inlet and to the water path of the swinging part at the outlet via a connecting soft rubber.

10. The nozzle assembly with oscillating flushing according to claim 9, characterized in that, The water system has two channels. The electromagnet is sealed and waterproof. Water inlet passages are provided on both sides of the electromagnet, namely a first water inlet and a second water inlet. The water supply unit has a first water outlet and a second water outlet on both sides. The first water outlet is connected to the first water inlet. The second water outlet is connected to the second water inlet. The nozzle has two sets of spray nozzles. The first set of spray nozzles is connected to the first water outlet and has one spray nozzle. The second set of spray nozzles is connected to the second water outlet and has 2 to 5 spray nozzles. The diameter of the first set of spray nozzles is larger than the diameter of the second set of spray nozzles.

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