Siphon nozzle of closestool

Abstract

The utility model discloses a siphon nozzle of a closestool, and relates to the field of bathroom accessories. The device comprises a sealing cover and a barrel, threads are arranged on the outer wall of the barrel, a water inlet is formed in the free end of the barrel, at least two water spraying openings are formed in the sealing cover, and the calibers of the water spraying openings are gradually increased from the water inlet end to the water outlet end; a wedge-shaped flow dividing body extending into the barrel is further formed on the sealing cover, and the small end of the flow dividing body is located in the barrel and faces the water inlet; the water injection nozzles are annularly arrayed or symmetrically distributed or crosswise distributed around the flow divider, and each water injection nozzle takes the outer peripheral surface of the large end of the flow divider as one of the hole wall surfaces. The utility model has the beneficial effects that the water injection nozzle is additionally arranged on the sealing cover, and the gradual reduction of the water outlet area in the barrel body and the gradual increase of the water outlet diameter of the water injection nozzle cooperate with each other, so that the flow velocity distribution of water flow is optimized, the head loss is reduced, the noise is reduced, the water flow stability is improved, the water-saving effect is enhanced, and the user experience is improved; meanwhile, the mounting angle adjusting difficulty is reduced.

Description

Technical Field

[0001] The utility model belongs to the field of sanitary ware, relates to the field of toilets, and particularly relates to a siphon nozzle for a toilet. Background Art

[0002] The toilet is a common sanitary ware in the bathroom, used for people to excrete waste. A siphonic toilet is a toilet that uses the siphon principle to achieve sewage discharge. Its sewage pipe is usually in the shape of an "S" that is tilted sideways. This design enables the siphonic toilet to generate a strong suction force when flushing, thereby effectively discharging waste. The water nozzle set on the siphonic toilet is a key part of realizing its unique flushing mechanism. The water nozzle on the siphonic toilet is set in various forms, the most common forms are vortex siphon and jet siphon. Among them, the jet siphon adds one or more jet sub-channels to the bottom of the toilet and aligns them with the center of the sewage outlet. When flushing, part of the water flows out from the water distribution holes around the toilet seat, and part is sprayed out from the jet nozzle. The water sprayed from the jet nozzle has a large water flow impact, which quickly flushes away the waste. At the same time, because the jet flow is carried out underwater, the noise during flushing is reduced.

[0003] When toilets are manufactured, a hole for a jet is reserved in the toilet bowl. Later, during installation for the user, a nozzle is installed inside the jet, and water is sprayed through the nozzle. Commonly used nozzles typically feature a single crescent-shaped jet at the nozzle head. Water is ejected through the jet to flush the toilet. However, the crescent-shaped jet results in uneven water distribution, making it difficult to effectively remove dirt and resulting in poor flushing. Furthermore, when assembling the nozzle, the angle of the crescent-shaped jet must be controlled. However, the actual installation process is difficult due to the small operating area inside the toilet. If the installer is not careful or responsible, the nozzle's installation angle may deviate, affecting the flushing effect. Furthermore, during installation, it is difficult to determine the nozzle's installation angle, making it impossible to promptly correct the installation position. This results in certain limitations in the installation and use of commonly used nozzles. Utility Model Content

[0004] To address the issues of poor cleaning performance and labor-intensive installation of a single nozzle outlet, this utility model provides a siphon nozzle for a toilet. By adding a water outlet to the cover, the gradual reduction of the water outlet area within the barrel and the gradual increase of the outlet diameter of the water outlet work in tandem to optimize the flow velocity distribution, reduce head loss, lower noise, improve water flow stability, enhance water conservation, improve user experience, and reduce the difficulty of adjusting the installation angle.

[0005] The technical solution adopted by the utility model is: to provide a siphon nozzle for a toilet, including a cover and a cylinder, the outer wall of the cylinder is provided with a thread, and a water inlet is provided at the free end, and at least two water spray outlets are provided on the cover, and the diameter of the water spray outlet gradually increases from the water inlet end to the water outlet end; the cover is also formed with a wedge-shaped diverter body extending into the cylinder, and the small end of the diverter body is located in the cylinder and faces the water inlet; the water spray outlets are distributed in a ring array around the diverter body or symmetrically or cross-distributed, and each water spray outlet uses the outer peripheral surface of the large end of the diverter body as one of the hole wall surfaces.

[0006] When assembling the nozzle with the toilet, after inserting the cylinder into the injection port on the toilet, the sealing cover on the cylinder is in contact with the toilet wall, and after using a nut to thread the cylinder, it is tightened and fixed on the toilet. After the water inlet at the free end of the cylinder is connected to the external water source, water flows into the cylinder from the water inlet. The smoothness of the inner wall of the cylinder reduces the water flow resistance, so that the water flows smoothly and quickly in the nozzle, thereby reducing the head loss and improving the water flow delivery effect. The smooth inner wall of the cylinder is not easy to accumulate scale, nor is it easy to become a place for microorganisms to attach and reproduce, and is not easy to breed bacteria and algae, thereby ensuring water quality, reducing corrosion and wear on the nozzle, extending the service life of the nozzle, and reducing noise generation. After the water flows in contact with the formed diverter on the sealing cover, the water flows along The outer surface of the diverter body flows to introduce the water flow into the water nozzle, and the cross-sectional area of the diverter body gradually increases along the direction of water flow, so that the water outlet cross-sectional area in the cylinder gradually decreases, thereby increasing the speed and pressure of the water flow. In addition, the outer surface of the diverter body is smooth, which reduces the water flow resistance and makes the water flow fast and smooth. When the water flows out of the water nozzle, the diameter of the water nozzle gradually increases from the water inlet end to the water outlet end, so that the flow area is increased and the flow rate is reduced accordingly, avoiding the wear of the water nozzle structure caused by excessive flow rate and reducing the head loss. The reduced flow rate helps the water flow to smoothly transition from high-speed flow to low-speed flow, reduce the disturbance and turbulence of the water flow, improve the stability of the water flow, and reduce the noise and vibration caused by turbulence, while increasing the water outlet area to ensure the jet cleaning effect.

[0007] To further optimize the technical solution, the water channel in the cylinder narrows from the small end of the diverter body to the water inlet end of the water spray port.

[0008] The narrowing of the water channel reduces the water flow area, thereby increasing the speed and pressure of the water flow, improving the kinetic energy of the water, and thus improving the flushing effect of the water flow.

[0009] To further optimize the technical solution, the water nozzle has a cross-sectional shape of a semicircle, a fan, a triangle, a quadrilateral or a cross.

[0010] The water nozzle can be selected into a semicircular, fan-shaped, triangular, quadrilateral or cross shape according to the use requirements to improve the diversity and flexibility of use.

[0011] To further optimize the technical solution, the water spray port is an arc-shaped structure with a fan-shaped cross section, and the flow divider is a truncated cone.

[0012] The circular array setting of the fan-shaped water spray nozzles allows the water flow to cover the inner wall of the toilet more evenly, making the flushing effect more comprehensive, and optimizing the dynamic characteristics of the water flow, reducing hydraulic loss, as well as reducing the splashing of water and noise during flushing, thereby improving flushing efficiency while reducing water consumption. At the same time, the frustum shape of the diverter body makes the water flow diversion more uniform, so that the water flow can be evenly introduced into the water spray nozzle to ensure the water spraying effect. The outer surface of the cone is smooth, which reduces the water flow resistance and makes the water flow speed increase and pressure increase directly and quickly.

[0013] To further optimize the technical solution, the diverter body includes a coarse frustum end and a fine frustum end, the coarse frustum end is formed on the cover, and a flow-cutting step surface is formed at the junction of the coarse frustum end and the cover.

[0014] The thick frustum end and the thin frustum end of the diverter body reduce the cross-sectional area of the water flow, thereby increasing the speed and pressure of the water flow. At the same time, the interception step surface formed at the connection between the thick frustum end and the cover can withstand the impact of the water flow, protect the water nozzle, reduce the damage to the water nozzle caused by the water flow, and extend the service life of the water nozzle.

[0015] To further optimize the technical solution, the water nozzle is a strip structure with a rectangular cross-section, and the flow divider is spindle-shaped.

[0016] The strip-shaped water nozzles are symmetrically distributed on the cover, which can concentrate the water flow, ensure the consistent direction of the water flow, enhance the flushing force, and make the water flow directly impact the inner wall and bottom of the toilet, effectively pushing the dirt to the drain outlet, reducing the adhesion of dirt in the toilet, and the concentrated water flow can reduce splashing during flushing, ensure hygienic use, and reduce the collision between the water flow and the inner wall of the toilet, thereby reducing the noise generated during flushing.

[0017] To further optimize the technical solution, the inner wall of the cylinder is formed with a transition slope that shrinks inward from the small end of the diverter body to the water inlet end of the water spray port.

[0018] The transition slope cooperates with the diverter body to gradually reduce the cross-sectional area of the water flow, thereby increasing the speed and pressure of the water flow and improving the flushing effect of the water flow.

[0019] To further optimize this technical solution, the water outlet area of the water nozzle is 21㎜²-240.5㎜².

[0020] To further optimize this technical solution, the cover is a regular hexagonal structure.

[0021] The hexagonal structure of the cover makes it easy to match it with the water nozzle to determine the assembly position and angle of the water nozzle. The hexagonal structure is a mechanically efficient shape and can provide a larger support area than a circle or other polygon. It is convenient to use tools such as wrenches to apply force to it, reducing the possibility of it sliding and ensuring assembly accuracy when tightening the nut.

[0022] To further optimize this technical solution, the ratio of the area of the water inlet end to the water outlet end of the water spray port is 1:1.2-1:3.

[0023] When the area ratio of the water inlet end to the water outlet end of the water nozzle is 1:1.2-1:3, the water output effect is better and the flushing effect is better.

[0024] The beneficial effects of the present invention are:

[0025] 1. The inner wall of the cylinder is smooth and flat, which reduces the friction between the water flow and the inner wall of the nozzle, reduces the resistance of the water flow, makes the water flow smoothly and quickly in the nozzle, reduces the head loss, and improves the water flow efficiency. The inner wall of the cylinder is smooth and not easy to scale, nor is it easy to become a place for microorganisms to attach and reproduce, and is not easy to breed bacteria and algae, thus ensuring water quality, reducing corrosion and wear on the nozzle, extending the service life of the nozzle, and reducing noise generation;

[0026] 2. When the water outlet on the cover is a fan-shaped structure, it is distributed on the cover in the form of a ring array. The fan-shaped water outlets distributed in the ring array make the water flow more evenly distributed, avoiding excessive concentration of water flow. At the same time, the fan-shaped water outlets can cover a wider area, providing a wider cleaning area for the toilet, improving the flushing effect of the toilet, effectively improving the utilization rate of water, and achieving water-saving effects;

[0027] 3. When the water outlet on the cover is a strip structure, it is symmetrically distributed on the cover. The symmetrically distributed strip water outlet can concentrate the water flow, enhance the flushing force, and make the water flow directly hit the inner wall and bottom of the toilet, effectively pushing the dirt to the drain outlet, reducing the adhesion of dirt in the toilet, and the concentrated water flow can reduce splashing during flushing, ensuring hygienic use and flushing effect;

[0028] 4. Before the water flows out through the water spout, it contacts the diverter body in the cylinder and flows along its surface, thereby introducing the water into the water spout. The cross-sectional area of the diverter body along the water outlet direction gradually increases, making the water outlet cross-sectional area in the cylinder gradually decrease. In addition, the smooth outer surface of the diverter body makes the water flow increase in speed and pressure quickly and directly, so that the water flows smoothly into the water spout, ensuring the water outlet effect.

[0029] 5. When the cover is a polygonal structure, especially a hexagonal structure, it is convenient to use tools such as wrenches to constrain the cylinder so that the nut can be tightened on the nozzle body to fix it and prevent the cylinder from moving, ensuring accurate assembly angles. The polygonal structure, especially the hexagonal structure, is matched with the water nozzle, which makes it convenient for construction workers to observe the installation angle and ensure flexibility in use. BRIEF DESCRIPTION OF THE DRAWINGS

[0030] Figure 1 This is a schematic structural diagram of the siphon nozzle of the second embodiment;

[0031] Figure 2 This is a front structural schematic diagram of the siphon nozzle of the second embodiment;

[0032] Figure 3 This is a schematic diagram of the back structure of the siphon nozzle of the second embodiment;

[0033] Figure 4 This is a schematic diagram of the internal structure of the siphon nozzle of the second embodiment;

[0034] Figure 5 Schematic diagram of the cross-sectional structure of the siphon nozzle of the second embodiment;

[0035] Figure 6 This is a schematic structural diagram of the siphon nozzle of the fourth embodiment;

[0036] Figure 7 Schematic diagram of the cross-sectional structure of the siphon nozzle of the fourth embodiment;

[0037] Figure 8 Schematic diagram of the internal structure of the siphon nozzle of the fourth embodiment;

[0038] Figure 9 This is a schematic structural diagram of the siphon nozzle of the fifth embodiment;

[0039] Figure 10 This is a front structural schematic diagram of the siphon nozzle of the fifth embodiment;

[0040] Figure 11 This is a schematic diagram of the back structure of the siphon nozzle of the fifth embodiment;

[0041] Figure 12 Schematic diagram of the internal structure of the siphon nozzle of the fifth embodiment;

[0042] Figure 13 This is a schematic diagram of the cross-sectional structure of the siphon nozzle of the fifth embodiment.

[0043] In the figure, 1, cylinder; 101, thread; 102, cover; 2, water outlet; 3, flow divider. DETAILED DESCRIPTION

[0044] The present invention will be further described in detail below with reference to the accompanying drawings and specific implementation methods. Example 1

[0045] Please see the attached Figure 1-13 The siphon nozzle of the toilet includes a cover 102 and a cylinder 1. A thread 101 is provided on the outer wall of the cylinder. A water inlet is provided at the free end of the cylinder 1. When the nozzle is assembled on the toilet, the cylinder 1 is inserted into the jet port reserved on the toilet. The cover 102 on the cylinder 1 is attached to the toilet wall. The cover is a regular polygonal structure. The diameter of its circumscribed circle is larger than the diameter of the cylinder 1, so that the cover 102 abuts against the toilet wall, thereby limiting the cylinder 1 to prevent it from detaching from the jet port and ensuring assembly reliability. There are at least two water spray nozzles on the cover. The water outlet 2 and the cover 102 are arranged in a regular polygonal structure, which makes it convenient to judge the assembly position of the water outlet 2 through the polygonal cover 102 to ensure the assembly accuracy. After the cover is set to a regular hexagonal structure, the assembly position of the water outlet 2 can be judged, and the cylinder 1 can be constrained and positioned with the help of tools such as a wrench, so that a nut can be connected to the thread 101 on the cylinder 1 to tighten the cylinder 1 to fix it on the toilet, thereby avoiding deflection of the nozzle body 1 and affecting the assembly accuracy of the water outlet 2, making it more reliable to use.

[0046] The thread 101 is set in the middle position of the cylinder 1, and the cover 102 is flat with the thread 101. After it is assembled with the spray port on the toilet, the assembly sealing is guaranteed. The cylinder 1 is connected to the external water source through the pipeline. A truncated cone-shaped plug connector is formed on the free end of the cylinder 1. The plug connector ensures the firmness of the pipeline plug-in, and this part can be set to a threaded structure to connect with the pipeline, ensuring reliability and diversity of use.

[0047] After the water flows into the cylinder from the water inlet of the cylinder 1, the inner wall of the cylinder 1 is smooth, which reduces the friction between the water flow and the inner wall of the nozzle, reduces the resistance of the water flow, makes the water flow in the nozzle smooth and fast, reduces the head loss, and improves the water flow delivery efficiency. In addition, the smooth inner wall of the cylinder 1 is not easy to accumulate scale, and is not easy to become a place for microorganisms to attach and reproduce, and is not easy to breed bacteria and algae, thereby ensuring water quality, reducing corrosion and wear on the nozzle, extending the service life of the nozzle, and reducing noise generation;

[0048] When the water flows into the cylinder 1, a wedge-shaped diverter 3 extending into the cylinder 1 is formed on the cover. The small end of the diverter 3 is located in the cylinder 1 and faces the water inlet. When the water flows along the cylinder 1, it contacts the diverter 3. The diverter 3 diverts the water flow, and the wedge-shaped structure of the diverter 3 gradually increases its cross-sectional area along the direction of the water flow, causing the water outlet area to gradually decrease, thereby increasing the speed and pressure of the water flow, and the water flows along the outer surface of the diverter 3. The outer surface of the diverter 3 is smooth, reducing the water flow resistance. At least two water nozzles 2 are opened on the cover 102, and the water nozzles 2 are arranged in a ring array or symmetrically around the diverter. Or cross-distributed, the diverted water flow is sprayed outward from the water nozzle 2, the diameter of the water nozzle gradually increases from the water inlet end to the water outlet end, and the outer peripheral surface of the large end of the water nozzle diverter is one of the hole wall surfaces, so that when the water flow is sprayed along the water nozzle 2, its flow area increases and the flow velocity is reduced accordingly, avoiding excessive flow rate causing wear on the water nozzle 2 structure and reducing head loss. The reduced flow velocity helps the water flow to smoothly transition from high-speed flow to low-speed flow, reduce water flow disturbance and turbulence, improve water flow stability, and reduce noise and vibration caused by turbulence, while increasing the water outlet area to ensure the jet cleaning effect. Example 2

[0049] Please see the attached Figure 1-5 When the water flow is ejected from the water spout 2, the cross-sectional shape of the water spout 2 is semicircular, fan-shaped, triangular, quadrilateral or cross-shaped, ensuring that the water spout 2 can be selected in a suitable shape according to the use requirements, ensuring the diversity of use. Taking the water spout 2 as a fan-shaped arc structure as an example, it is distributed in the cover 102 in a circular array. The small end of the upper splitter 3 narrows toward the water channel of the water inlet end of the water spout. The splitter 3 includes a thick frustum end and a thin frustum end. The thick frustum end is formed on the cover 102. The water flow in the cylinder 1 first contacts the thin frustum end of the splitter 3 and flows along the splitter 3. The outer surface of the diverter body 3 flows, thereby diverting the water flow. The outer surface of the diverter body 3 is smooth, which reduces the water flow resistance, so that the water flows smoothly along the surface of the truncated cone and is sprayed outward after flowing into the water spray port 2. The annular array of the arc-shaped water spray port 2 is convenient for controlling its installation angle, and the arc-shaped structure of the water spray port 2 can not only increase the aesthetics of the product, but also make the water flow more evenly distributed, avoiding the water flow from being too concentrated at a certain point. At the same time, the arc-shaped water spray port 2 can cover a wider area, providing a wider cleaning area for the toilet, improving the flushing effect of the toilet, thereby improving water utilization and achieving water-saving effects.

[0050] After assembling the nozzle on the test toilet, tests under the same water pressure found that when the water outlet area of water nozzle 2 is 21 mm², the water flow is concentrated and powerful, which helps to flush hard-to-reach areas in the toilet, such as edges and corners, and provides a strong impact force, which helps to remove stubborn stains. However, a smaller water outlet area will result in a smaller flushing coverage area, and multiple flushes are required to achieve the ideal cleaning effect. When the water outlet area of water nozzle 2 is 50 mm², the water flow rate is relatively moderate, balancing the flushing force and coverage, so that the water flow can not only effectively flush the inner wall of the toilet, ensuring the flushing effect, but also save water to a certain extent. When the water outlet area of water nozzle 2 is 100 mm², the nozzle has a larger water outlet area, which increases the flushing coverage area, makes the flushing faster and more comprehensive, and reduces the number of flushing times, but the flushing force is mild, which is suitable for removing loose dirt, and will increase water consumption and reduce the water-saving effect. When the water outlet area of the water nozzle 2 is 240.5㎜²㎜², the very large water outlet area can quickly cover the inner wall of the toilet, providing the widest flushing effect, which is suitable for large toilets, but it will cause the water flow to disperse, the water flow speed to decrease, the flushing force to be further mild, and more water and time to remove stubborn stains, and cause the water-saving effect to be further reduced. Example 3

[0051] Please see the attached Figure 4 , Attachment Figure 5 A retention step surface is formed at the junction of the thick frustum end of the diverter body 3 and the cover 102. When the water flows into the water outlet 2 along the diverter body 3, the water flows through the narrowed waterway at an increased speed and pressure, and then contacts the retention step surface, thereby slowing down the impact force of the water flow, protecting the water outlet 2, reducing the wear and erosion of the water outlet 2 by the water flow, and extending the service life of the water outlet 2. Example 4

[0052] Please see the attached Figure 7-9 The water outlets 2 are cross-distributed. Taking the cross structure as an example, the diverter bodies 3 formed on the cover 102 are distributed in a ring array. The diverter bodies 3 are distributed between two adjacent water outlets 2. The diverter bodies 3 also gradually reduce the water outlet cross-sectional area along the cylinder 1, thereby increasing the speed and pressure of the water flow and spraying it outward through the cross-shaped water outlets 2. The cross-shaped water outlets help to control the direction of the water flow, and the toilet can be flushed from multiple directions, increasing the flushing impact while reducing water consumption. Example 5

[0053] Please see the attached Figure 6-10When the water flows out from the water spout 2, the water spout 2 is a strip structure with a rectangular cross section, which is symmetrically distributed on the cover 102. The water spout 2 is symmetrically distributed between the diverter bodies 3. The diverter bodies 3 are spindle-shaped. When the water flows along the cylinder 1, the water flows along the surface of the diverter body 3 after contacting the diverter body 3. The smooth outer surface of the diverter body 3 reduces the water flow resistance, so that the water flows smoothly along the outer surface of the diverter body 3, and the inner wall of the cylinder 1 is formed with a concave portion that shrinks from the small end of the diverter body 3 to the water inlet end of the water spout 2. The transition slope cooperates with the diverter body 3 to gradually reduce the flow area of the water along the cylinder 1, thereby increasing the speed and pressure of the water flow. When the water flows out along the water spout 2, the strip structure of the water spout 2 can concentrate the water flow, enhance the flushing force, and make the water flow directly impact the inner wall and bottom of the toilet, effectively pushing the waste to the sewage outlet, reducing the adhesion of waste in the toilet, and the concentrated water flow can reduce the splashing of water during flushing, ensuring the use of hygiene and the flushing effect;

[0054] After assembling the nozzle on the test toilet, tests under the same water pressure found that when the water outlet area of water nozzle 2 is 21 mm², the water flow is concentrated and powerful, which helps to flush hard-to-reach areas in the toilet, such as edges and corners, and provides a strong impact force, which helps to remove stubborn stains. However, a smaller water outlet area will result in a smaller flushing coverage area, and multiple flushes are required to achieve the ideal cleaning effect. When the water outlet area of water nozzle 2 is 50 mm², the water flow rate is relatively moderate, balancing the flushing force and coverage, so that the water flow can not only effectively flush the inner wall of the toilet, ensuring the flushing effect, but also save water to a certain extent. When the water outlet area of water nozzle 2 is 100 mm², the nozzle has a larger water outlet area, which increases the flushing coverage area, makes the flushing faster and more comprehensive, and reduces the number of flushing times, but the flushing force is mild, which is suitable for removing loose dirt, and will increase water consumption and reduce the water-saving effect. When the water outlet area of the water nozzle 2 is 240.5㎜²㎜², the very large water outlet area can quickly cover the inner wall of the toilet, providing the widest flushing effect, which is suitable for large toilets, but it will cause the water flow to disperse, the water flow speed to decrease, the flushing force to be further mild, and more water and time to remove stubborn stains, and cause the water-saving effect to be further reduced.

[0055] The working principle of the siphon nozzle of this toilet is as follows: depending on the usage requirements, one can choose to use a strip-shaped water spray outlet 2 symmetrically distributed on the cover 102 or an arc-shaped water spray outlet 2 arranged in a circular array on the cover 102. The circular array of the arc-shaped water spray outlet 2 facilitates control of its installation angle, and the arc-shaped structure of the water spray outlet 2 not only enhances the aesthetics of the product, but also makes the water flow more evenly distributed, avoiding excessive concentration of water flow at a single point. At the same time, the arc-shaped water spray outlet 2 can cover a wider area, providing a wider cleaning area for the toilet, improving the flushing effect of the toilet, thereby improving water utilization and achieving water conservation. The strip-shaped water spray outlet 2 can more concentrated the water flow, enhance the flushing force, and make the water flow directly impact the inner wall and bottom of the toilet, effectively pushing waste to the sewage outlet and reducing the adhesion of waste in the toilet. The concentrated water flow can reduce splashing during flushing, ensuring hygienic use and ensuring flushing effect. When assembling the cylinder 1 to the toilet, the regular polygonal structure of the cover 102 is designed to match the distribution of the water spout 2, making it easy to determine the assembly position and angle of the water spout 2 by the position of the polygonal structure, thereby ensuring assembly accuracy. Furthermore, the regular polygonal structure of the head, especially the regular hexagonal structure, facilitates the use of tools to constrain the cylinder 1, and after the cover 102 rests against the toilet wall, the nut is tightened onto the cylinder 1 to ensure assembly accuracy. After the cylinder 1 is connected to the water source using a pipeline, the water flows into the cylinder 1. The inner wall of the cylinder 1 is smooth, reducing water flow resistance, making the water flow smooth, and reducing noise. After the water comes into contact with the diverter 3 formed on the cover inside the cylinder 1, the water flows along the outer surface of the diverter 3, thereby diverting the water flow. The wedge-shaped structure of the diverter body 3 causes the cross-sectional area inside the cylinder 1 to gradually decrease along the direction of water flow, thereby increasing the pressure and speed of the water flow. In addition, the outer surface of the diverter body 3 is smooth, which reduces resistance, making the water flow pressurized and accelerated quickly and directly. When the increased water flow is ejected through the water nozzle 2, the diameter of the water inlet end of the water nozzle 2 gradually increases toward the water outlet end, thereby gradually increasing the water outlet area of the water nozzle, expanding the flushing area of the toilet by the water flow, and ensuring the flushing water effect. At the same time, the gradually increasing diameter of the water nozzle 2 reduces the water flow velocity, reduces the wear of the water flow on the water nozzle 2, reduces the head loss, reduces the disturbance and turbulence of the water flow, improves the stability of the water flow, and reduces the noise and vibration caused by turbulence, thereby ensuring the user's experience.

Claims

1. A siphon nozzle for a toilet, comprising a cover (102) and a barrel (1), wherein a thread (101) is provided on the outer wall of the barrel and a water inlet is provided at the free end, characterized in that: The cover (102) is provided with at least two water spraying ports (2), and the diameter of the water spraying ports (2) gradually increases from the water inlet end to the water outlet end; the cover (102) is also formed with a wedge-shaped diverter (3) extending into the cylinder (1), and the small end of the diverter (3) is located in the cylinder (1) and faces the water inlet; the water spraying ports (2) are arranged in a circular array or symmetrically or cross-distributed around the diverter (3), and each water spraying port (2) uses the outer peripheral surface of the large end of the diverter (3) as one of the hole wall surfaces.

2. The siphon nozzle for a toilet according to claim 1, characterized in that: The water channel in the cylinder (1) narrows from the small end of the diverter body (3) to the water inlet end of the water spout (2).

3. The siphon nozzle for a toilet according to claim 2, characterized in that: The water spout (2) has a cross-sectional shape of a semicircle, a fan, a triangle, a quadrilateral or a cross.

4. The siphon nozzle for a toilet according to claim 3, characterized in that: The water spray port is a fan-shaped arc structure, and the flow divider (3) is a truncated cone shape.

5. The siphon nozzle for a toilet according to claim 3, characterized in that: The flow divider (3) comprises a coarse frustum end and a fine frustum end, the coarse frustum end is formed on the cover (102), and a flow-cutting step surface is formed at the junction of the coarse frustum end and the fine frustum end.

6. The siphon nozzle for a toilet according to claim 2, characterized in that: The water spout (2) is a strip-shaped structure with a rectangular cross section, and the flow divider (3) is spindle-shaped.

7. The siphon nozzle for a toilet according to claim 6, characterized in that: The inner wall of the cylinder (1) is formed with a transition slope that shrinks inward from the small end of the diverter body (3) to the water inlet end of the water spout (2).

8. The siphon nozzle for a toilet according to claim 1, 3 or 5, characterized in that: The water outlet area of the water spout (2) is 21 mm²-240.5 mm².

9. The siphon nozzle for a toilet according to claim 1, characterized in that: The sealing cover (102) is a regular hexagonal structure, and the diameter of the circumscribed circle is larger than the diameter of the cylinder.

10. The siphon nozzle for a toilet according to claim 1, 3 or 5, characterized in that: The ratio of the area of the water inlet end to the water outlet end of the water spray port (2) is 1:1.2-1:3.

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