A brush ring flushing assembly and toilet

Abstract

This utility model discloses a brush ring flushing assembly and a toilet. The brush ring flushing assembly is disposed between the brush ring nozzle and the flushing valve, and includes a brush ring connector and a brush ring water passage connected to each other. The brush ring connector is connected to the brush ring nozzle. The brush ring water passage is disposed between the brush ring nozzle and the flushing valve in a U-shape, and the lowest point of the brush ring water passage is lower than the installation position of the brush ring nozzle and the flushing valve to reduce the turbulence of the water flow through the brush ring connector. This application reduces the turbulence of the toilet brush ring water flow by limiting the structure of the brush ring water passage and using the U-shaped water passage, thereby improving the stability of the water flow at the outlet of the brush ring nozzle. It also reduces the intensity of turbulence by utilizing its fluid dynamic characteristics, and at the same time has additional functions such as liquid sealing and buffering pressure fluctuations. Compared with traditional methods such as increasing the pipe diameter, using rectifiers or fluid dampers, it is lower in cost and simpler in structure.

Description

Technical Field

[0001] This utility model belongs to the technical field of toilet accessories, specifically relating to a brush ring flushing component and a toilet. Background Technology

[0002] Most modern toilets feature a brush ring channel, located at the top of the toilet bowl, surrounding the bowl and opening to one side. The channel has brush ring holes, inside which a brush ring nozzle is installed. This nozzle connects to the water tank and other water supply components. When the toilet is flushed, water is sprayed from the nozzle and flows down the surface of the upper rim of the toilet bowl, swirling and falling to the bottom, thus cleaning the upper rim.

[0003] In the prior art, the flushing pipe connecting the brush ring nozzle and the water source device is as follows: Figure 8 As shown, the water flows from the outlet of the flush valve and rushes straight through the pipe to the nozzle of the brush ring. In this way, the water flow is rapid after it flows out of the flush valve. When the water volume is large and the flow rate is fast, the water is very easy to splash at the nozzle of the brush ring, which affects the user experience. The most common solution is to add a rectifier or a fluid damper at the nozzle. However, the above solutions are relatively complex and costly, and need further improvement. Utility Model Content

[0004] The purpose of this invention is to overcome the shortcomings of the prior art and provide a brush ring flushing assembly and a toilet.

[0005] The present invention adopts the following technical solution:

[0006] A brush ring flushing assembly is disposed between a brush ring nozzle and a flushing valve, and includes a brush ring connector and a brush ring water passage connected to each other.

[0007] Brush ring connector, for connection to the brush ring nozzle;

[0008] The brush ring water channel is located between the brush ring nozzle and the flushing valve in a U-shape. The lowest point of the brush ring water channel is lower than the installation position of the brush ring nozzle and the flushing valve to reduce water turbulence flowing through the brush ring joint.

[0009] Furthermore, the brush ring water path includes a U-shaped bend section, an inlet straight section connected to the first end of the U-shaped bend section, and an outlet straight section connected to the second end of the U-shaped bend section, with the brush ring connector connected to the outlet straight section.

[0010] Furthermore, the brush ring water circuit also includes an inclined guide section that is inclinedly arranged between the inlet straight section and the flushing valve. The central axis of the inclined guide section is set at an angle to the central axis of the inlet straight section, and the angle is 1-15°.

[0011] Furthermore, the ratio of the radius of the U-shaped bend to the diameter of the straight outlet section is 1.5-3:1.

[0012] Furthermore, the ratio of the length of the inlet straight section to the diameter of the inlet straight section is ≥5.

[0013] Furthermore, the brush ring connector includes a first flow channel disposed inside and connected to the brush ring water channel, and a second flow channel disposed perpendicular to the first flow channel. The brush ring nozzle is connected to the second flow channel, and the first flow channel and the second flow channel are arranged in a T-shape.

[0014] Furthermore, the first end of the first flow channel is connected to the brush ring water path, and includes a buffer section at its second end; the second flow channel is provided with a connecting section connected to the first flow channel, and the connecting section is located close to the buffer section, so that part of the water flow entering the first flow channel first rushes to the buffer section, and then enters the brush ring nozzle through the second flow channel.

[0015] Furthermore, the ratio of the extension length of the buffer segment to its diameter is greater than 1.

[0016] Furthermore, the brush ring connector includes a snap-fit ​​seat connected to the brush ring nozzle and two elastic snaps disposed opposite to each other on the snap-fit ​​seat and snapping into the brush ring nozzle. The outer periphery of the brush ring nozzle is provided with a slot that cooperates with the two elastic snaps.

[0017] A toilet includes a toilet body, a brush nozzle and a flush valve disposed in the toilet body, and a brush flushing assembly as described in any of the above, disposed between the brush nozzle and the flush valve.

[0018] As can be seen from the above description of the present invention, compared with the prior art, the beneficial effects of the present invention are as follows: The present application, by defining the structure of the brush ring water channel, utilizes the U-shaped water channel to reduce the effect of water flow turbulence in the toilet brush ring, improves the stability of the water flow at the outlet of the brush ring nozzle, and reduces the intensity of turbulence by utilizing its fluid dynamic characteristics. At the same time, it also has additional functions such as liquid sealing and buffering pressure fluctuations. Compared with traditional methods such as increasing the pipe diameter, using rectifiers or fluid dampers, the cost is lower and the structure is simpler. Attached Figure Description

[0019] Figure 1 A schematic diagram of the toilet's structure. Figure 1 ;

[0020] Figure 2 A schematic diagram of the toilet's structure. Figure 2 ;

[0021] Figure 3 A schematic diagram showing the water flow direction for the brush ring rinsing assembly;

[0022] Figure 4A schematic diagram of the brush ring rinsing assembly;

[0023] Figure 5 A schematic diagram showing the water storage status of the brush ring rinsing assembly;

[0024] Figure 6 A schematic diagram showing the water output state of the brush ring connector in conjunction with the brush ring nozzle;

[0025] Figure 7 This is a structural diagram of the brush ring connector and the brush ring nozzle.

[0026] Figure 8 This is a schematic diagram of the structure of a flushing pipeline in the prior art;

[0027] Figure 9 A schematic diagram of the structure in which the first and second guide channels are arranged in an L-shape;

[0028] In the diagram, 1. Toilet body; 2. Brush ring nozzle; 3. Flushing valve; 4. Brush ring connector; 5. Brush ring water passage; 6. Clamp; 7. Rubber ring; 8. Toilet ceramic; 21. Slot; 31. Flushing valve connector; 41. Main body section; 42. Snap-fit ​​seat; 43. Elastic buckle; 44. First flow guide channel; 441. Buffer section; 45. Second flow guide channel; 451. Connecting section; 51. U-shaped bend section; 52. Water inlet straight section; 53. Water outlet straight section; 54. Inclined guide section. Detailed Implementation

[0029] The present invention will be further described below through specific embodiments.

[0030] Reference Figures 1 to 2 As shown, a toilet includes a toilet body 1, a brush nozzle 2 and a flush valve 3 disposed in the toilet body 1, and a brush flushing assembly disposed between the brush nozzle 2 and the flush valve 3, wherein the brush nozzle 2 flushes the ceramic surface of the toilet body 1.

[0031] Reference Figures 3 to 5 As shown, the brush ring flushing assembly includes a brush ring connector 4 and a brush ring water passage 5. The flushing valve 3 is provided with a flushing valve connector 31 connected to the brush ring water passage 5, and the flushing valve connector 31 and the brush ring water passage 5 are fixedly connected by a clamp 6.

[0032] The brush ring water passage 5 is U-shaped, with its lowest point lower than the installation position of the brush ring nozzle 2 and the flush valve 3, in order to reduce the turbulence of the incoming water flow and improve the stability of the water flow. It includes a U-shaped bend section 51, an inlet straight section 52 connected to the first end of the U-shaped bend section 51, an outlet straight section 53 connected to the second end of the U-shaped bend section 51, and an inclined guide section 54 inclined between the inlet straight section 52 and the flush valve connector 31. The inlet straight section 52 and the outlet straight section 53 have the same pipe diameter. The U-shaped bend section 51 increases the flow resistance of the water flow entering the brush ring water passage 5, which can reduce the water flow velocity to a certain extent. According to the Reynolds number (Re=ρvd / μ) formula, when the flow velocity (v) decreases, the flow may transition from turbulent flow to laminar flow (laminar flow is more likely at low Re). Therefore, the water flow will be more stable after passing through the U-shaped bend section 51, effectively reducing the turbulence of the water flow and improving the stability of the water flow.

[0033] Based on the actual operating conditions of the brush ring water circuit 5 in the toilet, it is recommended that the brush ring water circuit 5 be set with the following parameters:

[0034] First, due to the spatial layout of the product structure, when the outlet of the flushing valve 3 is not vertically downward, the water inlet direction of the inclined guide section 54 will have an angle with the water inlet straight section 52. That is, the central axis of the inclined guide section 54 is set at an angle with the central axis of the water inlet straight section 52. In order to prevent the water flow from directly hitting the water inlet straight section 52 due to an excessively large angle α, resulting in significant flow separation, enhanced turbulence and kinetic energy loss, it is recommended that the angle be 1-15°. In this design scheme, the angle is 10°.

[0035] Second, the ratio of the radius (R) of the U-shaped bend 51 to the diameter (D) of the straight outlet section 53 affects the stability of the water flow. When the R / D ratio is less than 1.5, the diameter of the U-shaped bend 51 is too small, and the sharp bend leads to enhanced eddies. When the R / D ratio is greater than 3, the diameter of the U-shaped bend 51 is too large, the overall U-angle is too large, and the turbulence reduction effect of the U-shaped bend 51 is small. Therefore, the ratio of the radius (R) of the U-shaped bend 51 to the diameter (D) of the straight outlet section 53 is: 1.5 ≤ R / D ≤ 3. In this design scheme, R / D = 2.5.

[0036] Third, the ratio of the length of the inlet straight section 52 to its pipe diameter must also meet a certain value. When the ratio of the length (H) of the inlet straight section 52 to its pipe diameter (D) is too small, the length of the inlet straight section 52 is too short, and the water flow will be prone to turbulence due to continuous bends. In order to ensure sufficient gravity-inertia force balance, it is recommended that the H / D value be ≥ 5, and the water flow will be stable. In this design scheme, H / D=6.

[0037] IV. Brush ring water channel 5 inner wall roughness: adopt low roughness (Ra ≤ 1.6 μm) to reduce frictional turbulence.

[0038] Reference Figures 6 to 7 As shown, the brush ring connector 4 connects the brush ring nozzle 2 and the straight water outlet section 53. It includes a main body section 41 connected to the straight water outlet section 53, a snap-fit ​​seat 42 perpendicularly arranged to the main body section 41 and connected to the brush ring nozzle 2, two elastic snaps 43 oppositely arranged on the snap-fit ​​seat 42 and snapping onto the brush ring nozzle 2, a first flow guide channel 44 disposed in the main body section 41 and communicating with the straight water outlet section 53, and a second flow guide channel 45 disposed in the snap-fit ​​seat 42 and perpendicularly arranged to the first flow guide channel 44. The brush ring nozzle 2 communicates with the second flow guide channel 45, and its outer periphery is provided with a groove 21 that mates with the two elastic snaps 43. Specifically, the first end of the first flow guide channel 44 communicates with the straight water outlet section 53 and includes a buffer section 441 disposed at its second end. The second flow guide channel 45 is provided with a connecting section 451 communicating with the first flow guide channel 44, and the connecting section 451 is disposed close to the buffer section 441, so that the first flow guide channel 44 and the second flow guide channel... The second guide channel 45 is T-shaped, so that part of the water flow entering the first guide channel 44 from the straight outlet section 53 first rushes to the buffer section 441, and then enters the brush ring nozzle 2 through the second guide channel 45; the other part of the water flow directly turns into the second guide channel 45, reducing the impact on a single turn. Furthermore, the buffer section 441 causes the water flow to suddenly increase in interface size at the junction of the first guide channel 44 and the second guide channel 45, reducing the flow velocity and converting kinetic energy into static pressure. This reduces the centrifugal effect during turns, making the turn smoother and lessening the skewness of the water column sprayed from the brush ring nozzle 2. Because the amount of water turning after diversion is reduced, the inertial force is weakened. Further, the size of the buffer section 441 has a certain influence on the buffering effect. When the ratio of the extension length h of the buffer section 441 to its diameter d is greater than 1, the effect is better. However, due to structural space limitations, the ratio of the diameter to the extension length of the buffer section 441 involved in this application is approximately 1.5. Correspondingly, refer to... Figure 9 As shown in the figure, the first guide channel 44 and the second guide channel 45 are set in an L-shape. The water flow will deflect outward due to inertia at the L-shaped corner, causing the water column to hit the outer pipe wall and form an asymmetrical flow. The water column coming out of the brush ring nozzle 2 will have an uneven distribution and an asymmetrical tilt effect (as shown in the figure, there is more water flow at the top and less water flow at the bottom), which reduces the ability of the brush ring water to fully brush the ceramic surface. At the same time, the tilt of the water column is prone to splashing, which affects the user experience.

[0039] Additionally, refer to Figure 5As shown, because the toilet flushing system requires anti-backflow, air vacuum breaking is performed at flush valve 3, so air will enter at flush valve 3. Also, because the lowest point of the brush ring water path 5 is lower than the brush ring nozzle 2 and flush valve 3, after normal brushing, there will be a section of water stored in the brush ring water path 5. This section of water acts as a buffer when the next flushing function is started. When the flushing function is turned on, the water stored in the brush ring water path 5 will rise along the direction of brush ring nozzle 2 under the action of water pressure. The stored water will first impact the buffer section 441. Under the action of the buffer section 441, the water flow velocity is reduced. Therefore, it also reduces the speed at which the air in the flush valve 3 behind the water is ejected from the nozzle, indirectly reducing the noise of air breaking during the water discharge process.

[0040] During the installation of the brush ring flushing assembly, the inclined guide section 54 and the straight water outlet section 53 are respectively connected to the flush valve connector 31 and the main body section 41 of the brush ring connector 4 via clamps 6; then the brush ring nozzle 2 is locked onto the toilet ceramic 8 via sealing gaskets and lock nuts; then the rear end of the brush ring nozzle 2 is embedded in the second flow channel 45 so that the two elastic buckles 43 are respectively locked in the slots 21 on the outer periphery of the brush ring nozzle 2, and at the same time, with the rubber ring 7 for sealing, the brush ring nozzle 2 and the brush ring connector 4 are connected to form a complete brush ring flushing water path.

[0041] This application reduces the turbulence of the toilet brush ring water flow by defining the structure of the brush ring water channel 5 and using the U-shaped water channel. It improves the stability of the water flow at the outlet of the brush ring nozzle 2 and reduces the intensity of turbulence by utilizing its fluid dynamic characteristics. At the same time, it also has additional functions such as liquid sealing and buffering pressure fluctuations. Compared with traditional methods such as increasing the pipe diameter, using rectifiers or fluid dampers, it is lower in cost and simpler in structure.

[0042] The above description is merely a preferred embodiment of the present utility model, and therefore cannot be construed as limiting the scope of the present utility model. All equivalent changes and modifications made in accordance with the scope of the present utility model application and the contents of the specification should still fall within the scope of the present utility model application.

Claims

1. A brush ring flushing assembly, disposed between a brush ring nozzle and a flushing valve, characterized in that: This includes interconnected brush ring connectors and brush ring water channels; Brush ring connector, for connection to the brush ring nozzle; The brush ring water channel is located between the brush ring nozzle and the flushing valve in a U-shape. The lowest point of the brush ring water channel is lower than the installation position of the brush ring nozzle and the flushing valve to reduce water turbulence flowing through the brush ring joint.

2. The brush ring rinsing assembly according to claim 1, characterized in that: The brush ring water channel includes a U-shaped bend section, an inlet straight section connected to the first end of the U-shaped bend section, and an outlet straight section connected to the second end of the U-shaped bend section. The brush ring connector is connected to the outlet straight section.

3. The brush ring rinsing assembly according to claim 2, characterized in that: The brush ring water circuit also includes an inclined guide section that is inclinedly arranged between the inlet straight section and the flushing valve. The central axis of the inclined guide section is set at an angle to the central axis of the inlet straight section, and the angle is 1-15°.

4. The brush ring rinsing assembly according to claim 2, characterized in that: The ratio of the radius of the U-shaped bend to the diameter of the straight outlet section is 1.5-3:

1.

5. A brush ring rinsing assembly according to claim 2, characterized in that: The ratio of the length of the inlet straight section to the diameter of the inlet straight section is ≥5.

6. The brush ring rinsing assembly according to claim 1, characterized in that: The brush ring connector includes a first flow channel that is connected to the brush ring water channel and a second flow channel that is perpendicular to the first flow channel. The brush ring nozzle is connected to the second flow channel, and the first flow channel and the second flow channel are arranged in a T-shape.

7. A brush ring rinsing assembly according to claim 6, characterized in that: The first guide channel is connected to the brush ring water path at its first end and includes a buffer section at its second end; the second guide channel is provided with a connecting section connected to the first guide channel, and the connecting section is located close to the buffer section, so that part of the water flow entering the first guide channel first rushes to the buffer section and then enters the brush ring nozzle through the second guide channel.

8. A brush ring rinsing assembly according to claim 7, characterized in that: The ratio of the extension length of the buffer section to its diameter is greater than 1.

9. A brush ring rinsing assembly according to claim 1, characterized in that: The brush ring connector includes a snap-fit ​​base connected to the brush ring nozzle and two elastic snaps disposed opposite to each other on the snap-fit ​​base and snapping into the brush ring nozzle. The outer periphery of the brush ring nozzle is provided with a slot that cooperates with the two elastic snaps.

10. A toilet, comprising a toilet body, a brush ring nozzle and a flushing valve disposed in the toilet body, characterized in that: It also includes a brush ring flushing assembly as described in any one of claims 1 to 9, disposed between the brush ring nozzle and the flushing valve.

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