Slow flow preventing toilet bowl

Abstract

The utility model belongs to the technical field of toilet bowl, concretely relates to a slow flow preventing toilet bowl, including the toilet bowl, the toilet bowl bottom connects the sewage elbow, is provided with the side waterway on one side of toilet bowl, is provided with the injection hole in the end of side waterway, is provided with the backflow hole in the bottom wall of side waterway, and the backflow hole is communicated with the toilet bowl or sewage elbow inner chamber. The utility model discloses through setting backflow hole in the bottom of side waterway, makes the small slow flow water flow remaining in side waterway after washing to directly pass through the hole and enter the bottom of toilet bowl or sewage elbow, avoids the slow flow water from injection hole and continuously flows out, thereby effectively prevents the water mark stain from forming on the inner wall of toilet bowl, and significantly improves the cleaning performance and service life of toilet bowl.

Description

Technical Field

[0001] This utility model belongs to the field of toilet technology, specifically relating to a toilet with anti-slow flow function. Background Technology

[0002] In existing technologies, to improve the internal structure of toilets and facilitate cleaning, many toilets adopt a vortex flushing design. Water flows through a side channel extending along the seat towards the front of the toilet bowl, and is ejected from a spray nozzle at the end of the side channel. The flushing water, under potential energy, forms a rotating water flow that washes the surface of the bowl. After flushing, a small stream of water may continuously flow from the flush nozzle after the flushing process. This stream flows slowly and takes a relatively long time (5-10 minutes) to completely disappear.

[0003] The cause of this slow flow: 1. Toilets produced by the slurry injection molding method form a blank by absorbing water with the mold. The mold absorbs slurry on one side. The inner cavity of the side water channel of the toilet has an acute angle. When water flows through the side water channel, the angle position is low and the resistance to water is large, thus forming a flow lag phenomenon. After the flushing water is sprayed out, it forms a slow flow and slowly flows out from the spray hole. 2. The side channel is a transverse guiding structure with an uneven inner wall, resulting in local water accumulation areas. After the flushing water is discharged, this part of the water does not have enough kinetic energy and can only flow slowly towards the spray hole. The side channel extends in a curved manner and has internal bends, baffles, and other structures that obstruct or disturb the water flow, forming local vortex backflows. This part of the water flow is also lagging behind the flow of the flushing water. 3. The inner wall of the waterway is unglazed, and the surface of the ceramic body is rough and has a water absorption effect. Water easily adheres to form a water film, which continues to flow slowly towards the spray hole under the action of gravity. 4. If the inlet valve closes slowly or is not sealed properly, water leakage will occur, causing a slow flow towards the spray nozzle.

[0004] This slow flow (sluggish water flow) is very common in vortex flush toilets. After long-term use, water stains and scale can easily form on the surface of the toilet bowl, making it difficult to clean. Utility Model Content

[0005] The technical problem this invention aims to solve is that after flushing a vortex toilet, a continuous slow water flow occurs, which easily forms obvious watermarks and stains.

[0006] The technical solution adopted by this utility model to solve the aforementioned problem is: A slow-flow toilet includes a toilet bowl, a drain pipe connected to the bottom of the toilet bowl, a side channel provided on one side of the toilet bowl, a jet hole provided at the end of the side channel, and a return hole provided on the bottom wall of the side channel, which communicates with the inner cavity of the toilet bowl or the drain pipe.

[0007] Compared with the prior art, the advantages of this utility model with the above structure are: This invention allows a small, slow-flowing stream from the side channel to directly flow to the bottom of the toilet bowl through a return hole, preventing it from being discharged from the spray hole. This reduces water stagnation inside the side channel. Since the slow-flowing stream cannot reach the spray hole, watermarks will not form outside the spray hole, effectively preventing scale buildup on the inner wall of the bowl. This also prevents stubborn stains from forming after long-term use, significantly improving the cleaning performance and lifespan of the toilet bowl.

[0008] As a preferred option, a further technical solution to the above structure is: The return hole is located at the lowest point of the side channel, with a lower diameter of 5mm to 10mm and an upper diameter of 15mm to 25mm.

[0009] The beneficial effects obtained from the above features are: the larger upper opening of the return hole in this example makes it easier for the water flowing through the side channel to flow into the return hole, so that when there is residual water in the side channel, it can all flow into the return hole.

[0010] It is also equipped with a drainage pipe, the upper end of which is connected to the return hole and the lower end of which is connected to the sewage bend below the water surface. The drainage pipe body is set to fit against the outer surface of the toilet bowl.

[0011] The beneficial effects obtained from the above features are: the water inlet pipe adopts an exposed pipe structure for drainage, which is easy to manufacture and maintains the thickness and strength of the ceramic wall of the toilet bowl.

[0012] The toilet bowl has an annular guide channel on the lower side of the side channel. The annular guide channel is formed by bending the toilet bowl wall. The side channel has the annular guide channel as its bottom wall. The drainage pipe is a ceramic structure that is integrally fixed to the toilet bowl, and its upper end is fixed to the bottom wall of the side channel.

[0013] The beneficial effects obtained from the above features are: the upper opening of the drainage pipe is directly connected to the return hole, reducing the bending of the drainage cavity and allowing water to flow smoothly to the bottom of the toilet.

[0014] The lower end of the drain pipe is connected to the inner side of the rising section of the sewage bend.

[0015] The beneficial effects obtained from the above features are as follows: In this example, the slow-flow water inlet point on the sewage pipe is set on the back side of the sewage flow to avoid backflow of slow flow under strong water flow, while the slow flow does not affect the sewage flow.

[0016] The annular guide channel is symmetrically arranged in two sections on the left and right sides of the toilet bowl. The length of the side channel is close to the length of the annular guide channel on one side. There is no annular guide channel at the front end of the toilet bowl, and the rear end of the annular guide channel on the other side of the toilet bowl extends to the rear end of the side channel.

[0017] The beneficial effects obtained from the above features are as follows: This example isolates the spray nozzle from the discharge path of waste through the toilet structure and water flow guidance, thus preventing the spray nozzle from becoming soiled. Attached Figure Description

[0018] Figure 1 This is a diagram illustrating an embodiment of the side channel of this utility model; Figure 2 This is a diagram of the internal structure of the side channel of this utility model; Figure 3 This is a side structural diagram of the drainage pipe of the toilet of this utility model; Figure 4 yes Figure 3 Cross-sectional view of line AA; Figure 5 yes Figure 3 Cross-sectional view of the middle BB line; Figure 6 yes Figure 3 Cross-sectional view of the CC line; Figure 7 Figure 1 shows an embodiment of the annular guide groove of this utility model. Figure 8 This is a schematic diagram of the slow-flow slope structure of this utility model.

[0019] In the diagram: 1. Toilet bowl; 2. Sewage drain bend; 3. Circular guide channel; 4. Side channel; 41. Bottom wall; 5. Jet nozzle; 6. Return hole; 7. Drainage pipe; 8. Flow ramp. Detailed Implementation

[0020] The present invention will be further described below with reference to embodiments, the purpose of which is only to better understand the content of the present invention. Therefore, the examples given do not limit the scope of protection of the present invention.

[0021] See Figures 1 to 8 The anti-slow-flow toilet provided by this utility model is mainly for vortex flush toilets. The toilet usually includes a toilet bowl 1, the bottom of which is connected to a drain pipe 2. A side channel 4 is provided on the upper side of the toilet bowl 1 of the vortex flush toilet. A jet hole 5 is provided at the end of the side channel 4. A return hole 6 is provided at the bottom of the side channel 4. The return hole 6 communicates with the inner cavity of the toilet bowl 1 or the drain pipe 2.

[0022] Optionally, the return hole 6 is located at the lowest point of the side channel 4, with a lower diameter of 5mm to 10mm and an upper diameter of 15mm to 25mm. The lowest point may be the angle between the side wall and the bottom wall of the side channel (e.g.,...). Figure 6 ).

[0023] This design employs a small-diameter return hole 6. During normal flushing, only a very small amount of water is diverted through the return hole 6, having no significant impact on the kinetic energy and flushing effect of the main flushing water flow. When flushing ends and the main flushing water in the side channel 4 is emptied, the remaining slow-flowing water will be discharged through this hole, thus preventing a continuous, slow flow of water without flushing function from the jet hole 5. The flared structure of the return hole 6 facilitates the guidance of residual water in the side channel 4 to converge into the return hole 6, improving the slow-flow discharge efficiency and reducing water stagnation at the bottom of the side channel 4. Preferably, the water in the return hole 6 is directly guided into the trap at the bottom of the toilet bowl, thus preventing the formation of visible, easily clogged or adhered-to-dirt holes on the inner surface of the toilet bowl 1.

[0024] The return hole 6 can be connected to the water trap through a reserved water channel hidden in the wall of the toilet bowl 1, but this is difficult to manufacture and may reduce the strength of the bowl wall. However, the preferred solution adopted in this utility model is as follows: a drain pipe 7 is provided on the outside of the toilet bowl 1, the upper end of which is connected to the return hole 6 and the lower end is connected to the drain pipe 2 below the water surface. The drain pipe 7 is fitted to the outer surface of the toilet bowl 1.

[0025] The drainage pipe 7 is designed with an exposed pipe structure, which is easy to manufacture and ensures the thickness and strength of the ceramic wall of the toilet bowl 1.

[0026] As an alternative, an annular guide channel 3 is provided on the lower side of the side channel 4 in the toilet bowl 1. The annular guide channel 3 is formed by bending the wall of the toilet bowl 1. The side channel 4 has the annular guide channel 3 as its bottom wall 41. The drainage pipe 7 is a ceramic structure that is integrally fixed with the toilet bowl 1. Its upper end is fixed to the bottom wall 41 of the side channel 4. The slow-flowing water is directly poured into the drainage pipe 7 and flows smoothly to the bottom of the toilet bowl. On the outside of the toilet bowl, the connection between the lower surface of the annular guide channel 3 and the drainage pipe 7 should be smooth.

[0027] Specifically, the lower end of the drain pipe 7 is connected to the inner side of the rising section of the drain bend 2. During sewage discharge, the water flows into the bottom of the toilet bowl 1, turns upward through the water trap, and the water flow speed on the outer wall of the drain bend 2 is fast and has high potential energy, while the water pressure on the inner side is relatively low. In this example, the slow flow access point is set on the back side of the main water flow of the drain bend 2 to avoid backflow under strong water pressure, while the slow flow does not affect the sewage flow.

[0028] This solution is particularly suitable for situations where the extension length of the side drain 4 is one-quarter, one-third, or even longer than the circumference of the toilet bowl 1. Optionally, the distance between the return hole 6 and the jet hole 5 is 10cm to 15cm. This position, calculated, effectively intercepts the slow flow from the rear end of the toilet bowl 1 to the jet hole 5 without significantly affecting the path and kinetic energy of the main flushing water flow.

[0029] Optionally, the return hole 6 is preferably located on the transverse centerline of the toilet bowl 1 or slightly off-center (i.e., near the water tank). This location places the drain pipe 7 behind the widest part of the toilet bowl (the widest part of the toilet). When using an exposed drain pipe structure, the drain pipe 7 is in a blind spot, reducing its impact on the overall appearance of the toilet. The toilet surface is smooth, and the outer surface can usually be cleaned by flushing, so the drain pipe 7 structure does not affect the cleanliness of the toilet. Furthermore, in new toilets, the toilet bowl 1 and the drain pipe 7 are both part of the inner liner structure of the toilet, so the drain pipe 7 does not affect the appearance of the toilet or its cleanability.

[0030] As a preferred option, the bottom wall 41 of the side channel 4 is provided with a gentle flow slope 8 that slopes from the jet hole 5 to the return hole 6, with a height difference of 1mm to 2mm. When the main flushing water flows through the side channel 4, the gentle flow slope 8 does not affect its flow. However, when the flow in the side channel 4 becomes gentle, the gentle flow slope 8 causes the water film on the inner wall of the side channel 4 to not only stop flowing towards the jet hole 5, but also to flow back from the jet hole 5, thereby enabling the water outlet of the jet hole 5 to be quickly cut off.

[0031] As an application example of this utility model, the annular guide channel 3 is symmetrically arranged in two sections on the left and right sides of the toilet bowl 1. The length of the side channel 4 is close to the length of the annular guide channel 3 on one side. There is no annular guide channel 3 at the front end of the toilet bowl 1, and the rear end of the annular guide channel 3 on the other side of the toilet bowl 1 (right side of the toilet) extends to the rear end of the side channel 4. This layout allows some of the water sprayed from the jet hole 5 to quickly flow downwards and, due to the shape of the toilet bowl 1, have no chance to meet the jet hole again. The other part of the water flows through the annular guide channel 3 on the opposite side and is guided towards the rear end of the toilet bowl, thus moving away from the jet hole and also having no chance to meet the jet hole again. This design achieves the goal of using the guidance of water flow to isolate the jet hole 5 from the waste path, preventing dirt from sticking to the jet hole 5 and making the toilet bowl easy to clean.

[0032] This invention solves the problem of slow-flowing water continuously flowing out of the jet nozzle by setting a return hole at the low point of the side channel, allowing the small amount of water remaining in the side channel after flushing to be discharged directly through the hole. This effectively prevents watermarks and stains from forming on the inner wall of the toilet bowl (especially in the area corresponding to the jet nozzle), and significantly improves the cleaning performance and service life of the toilet.

[0033] The above description is only a preferred embodiment of the present utility model and does not limit the scope of the present utility model. All equivalent changes made based on the content of the present utility model specification and its drawings are included within the scope of the present utility model.

Claims

1. A toilet with anti-slow flow function, comprising a toilet bowl (1), a drain pipe (2) connected to the bottom of the toilet bowl (1), a side channel (4) provided on one side of the toilet bowl, and a jet hole (5) provided at the end of the side channel (4), characterized in that, The bottom of the side channel (4) is provided with a return hole (6), which is connected to the inner cavity of the toilet (1) or the drain pipe (2).

2. The anti-slow-flow toilet according to claim 1, characterized in that, The return hole (6) is located at the lowest point of the side channel (4). The diameter of the lower opening of the return hole (6) is 5mm to 10mm, and the diameter of the upper opening is 15mm to 25mm.

3. The anti-slow-flow toilet according to claim 1, characterized in that, A drainage pipe (7) is also provided, the upper end of which is connected to the return hole (6) and the lower end is connected to the sewage bend (2) below the water cover. The drainage pipe (7) is fitted to the outer surface of the toilet bowl (1).

4. The anti-slow-flow toilet according to claim 3, characterized in that, An annular guide channel (3) is provided on the lower side of the side channel (4) in the toilet (1). The annular guide channel (3) is formed by bending the wall of the toilet (1). The side channel (4) has the annular guide channel (3) as its bottom wall (41). The drainage pipe (7) is a ceramic structure that is integrally fixed with the toilet (1), and its upper end is fixed to the bottom wall (41) of the side channel (4).

5. The anti-slow-flow toilet according to claim 3, characterized in that, The lower end of the drain pipe (7) is connected to the inner side of the rising section of the drain bend (2).

6. According to claim 4, the annular guide groove (3) is symmetrically arranged in two sections on the left and right sides of the toilet bowl (1), the length of the side channel (4) is close to the length of the annular guide groove (3) on one side, there is no annular guide groove (3) at the front end of the toilet bowl (1), and the annular guide groove (3) on the other side of the toilet bowl (1) extends to the rear end of the side channel (4).

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