CN216920587U - Toilet bowl overflow structure - Google Patents

Abstract

The utility model provides a closestool overflow structure, which comprises a closestool body, wherein the closestool body is provided with a water inlet cavity, a pool cavity, a seat ring water guide channel, an auxiliary water channel, a sewage discharge pipeline and an overflow pipeline; the main improvement lies in that: the auxiliary water channel is arranged inside one side of the closestool body; one part of the overflow pipeline is arranged inside the other side of the closestool body, the other part of the overflow pipeline is arranged inside the front of the pool cavity and the sewage discharge pipeline, meanwhile, the inlet end of the overflow pipeline is communicated with the water inlet cavity, an overflow hole is formed, and the height position of the overflow hole is between the water surface of the first water seal accumulated in the pool cavity and the seat ring water guide channel. According to the design, the problem of sewage overflow generated by the closestool can be effectively solved, the sanitation and cleanness of the overflow pipeline and the overflow hole of the overflow pipeline are particularly ensured, the pollution and odor emission of the overflow pipeline are avoided, and meanwhile, the integral attractiveness is considered.

Description

Toilet bowl overflow structure

Technical Field

The present invention relates to a toilet, and more particularly, to an overflow structure of a toilet capable of preventing sewage in the toilet from overflowing to a floor.

Background

As a common sanitary product, a flush toilet is often used in homes, hotels, restaurants and various public places.

In a typical flush toilet, particularly a siphon flush toilet, a user can start flushing through an operation switch, and using the siphon principle, the sewage in the toilet bowl cavity containing original accumulated water is discharged to a sewer or a floor through a toilet flange along a sewage pipe, however, when the sewage pipe is blocked due to various reasons, once the user starts flushing, the sewage containing sewage which cannot be smoothly discharged to the sewer rises in the bowl cavity, if the pressure generated by rising sewage still cannot effectively force the sewage pipe to dredge, many users can use more than one flushing operation or inject clean water from the outside to try to remove the blockage of the sewage pipe, however, repeated flushing operation or filling of clean water from the outside easily causes the sewage to overflow from the water ring part, so as to pollute the floor. In addition, sometimes the failure of the water inlet valve can cause the cleaning water to be continuously injected into the pool cavity, and the overflow condition can also be caused, and the two conditions can be combined.

In order to solve the above problems, an overflow structure is designed on a toilet body, for example, chinese grant publication No. CN202416520U utility model discloses a spill-proof toilet, which comprises an overflow pipe arranged on the toilet body and connected to the inner wall of the toilet body and a flange, wherein the flushing function is normal, the cleaning water flushed into the tank cavity discharges the dirt in the tank cavity to the sewer via the drain pipe and the flange, when the drain pipe is blocked, the rising sewage can be discharged to the sewer via the overflow pipe and the flange via the overflow hole on the inner wall of the tank, so as to avoid the overflow of the sewage to the floor, and at least achieve emergency and relieving effects.

However, the overflow hole of the overflow pipe is directly disposed at the rear side of the surface of the tank cavity, and actually, the completely hidden visual effect is not achieved, and it is still difficult to avoid the excrement from splashing or sticking to the overflow hole and even partially flowing into the overflow pipe during each use.

Therefore, the chinese patent of utility model No. CN206337621U discloses a toilet bowl, wherein the overflow hole of the overflow pipe is disposed under the outlet of the toilet seat near the seat water guide channel, so that the overflow hole and the overflow pipe are desirably flushed by the cleaning water during each flushing, and the cleaning performance is maintained, unfortunately, the overflow hole is also disposed on the surface of the tank cavity, although the sealing performance is better, the cleaning water is only shielded in some visual angles, and it is still hard to prevent the excrement from adhering to the overflow hole directly or after splashing no matter the design is on the front side or the rear side of the tank cavity, although the cleaning water from the water guide channel partially flows through the overflow hole along the surface of the tank cavity and then enters the overflow pipe, or partially flows into the overflow pipe via the liquid receiving tank connected to the overflow pipe to generate proper cleaning effect, but the cleaning water partially flows through the overflow hole in a drooping manner, the cleaning effect of the overflow hole is still not ideal because the overflow hole is not directly and completely washed, even if the overflow hole is washed every time, excrement is easy to remain at the overflow hole, and after all, some excrement has high adhesion, and even if the overflow hole is washed by a shower head, the excrement cannot be easily washed clean, and meanwhile, the remained excrement can generate unpleasant odor, and in addition, the overflow hole is not shielded and can still be seen from certain visual angles, so that a great space for improving the effect still exists.

Us patent No. US9,822,520B2 also discloses a toilet with a flushable overflow pipe, which is also designed with similar overflow pipe, with the difference that the overflow pipe can be additionally flushed by an independent flushing channel, and the flushing channel is designed with two confluence points, the first confluence point is near the overflow port, the second confluence point is at the connection with the drain pipe, and valves are respectively designed at the confluence points, however, such valve design makes the toilet structure complicated, not only increases the difficulty and cost of manufacturing and assembling, but also increases the failure probability and the subsequent maintenance cost, which is not a necessary design, and the overflow hole of the overflow pipe is also designed on the surface of the tank cavity, which also has the problems mentioned above, so there is a need to further overcome the solution.

SUMMERY OF THE UTILITY MODEL

The main objective of the present invention is to provide an overflow structure for a toilet, which is used to solve the problem of sewage overflow caused by blockage or water inlet failure of a toilet sewage pipe or simultaneous occurrence of blockage or water inlet failure, and simultaneously ensure the sanitation and cleanness of the overflow pipe and the overflow hole thereof, avoid the contamination and odor emission, and take into account the overall aesthetic property.

In order to achieve the above object, the present invention provides a toilet bowl overflow structure, comprising a toilet bowl body, the toilet bowl body having a water inlet chamber, a bowl chamber, a seat ring water guide channel and a secondary water channel for guiding flushing water in the water inlet chamber to the bowl chamber, a sewage discharge pipe for discharging sewage in the bowl chamber to an external sewer, and an overflow pipe for discharging rising accumulated water in the bowl chamber to the external sewer;

the auxiliary water channel is arranged in one side of the left side and the right side of the closestool body;

one part of the overflow pipeline is arranged inside the other side of the left side and the two sides of the closestool body, which is not provided with the auxiliary water channel, the other part of the overflow pipeline is arranged inside the front of the pool cavity and the sewage discharge pipeline, the inlet end of the overflow pipeline is communicated with the water inlet cavity, an overflow hole is formed on the wall of the water inlet cavity, and the height position of the overflow hole is between the water surface of the first water seal accumulated in the pool cavity and the seat ring water guide channel.

The overflow pipeline of the closestool overflow structure is integrally formed inside the closestool body.

The outlet end of the overflow pipeline of the toilet overflow structure is provided with an overflow discharge port which is communicated with the tail end part of the sewage discharge pipeline.

The outlet end of the overflow pipe of the toilet overflow structure is provided with an overflow discharge port which is communicated with the sewer in a mode independent of the sewage discharge pipe.

A bent part is formed on an overflow pipeline of the closestool overflow structure, and water flow can be accumulated in the bent part to form a second water seal.

The overflow pipeline of the closestool overflow structure is provided with a first flow guide part and a second flow guide part which are communicated with each other; the first flow guide part is mainly arranged at the side part of the closestool body, and the inlet end of the first flow guide part is provided with the overflow hole; the second diversion part is mainly arranged at the front part of the closestool body, and an overflow discharge port is formed at the outlet end of the second diversion part and is communicated with the sewer.

The overflow discharge port of the overflow pipeline of the toilet overflow structure is communicated with the tail end part of the sewage discharge pipeline.

The overflow discharge of the overflow pipe of the toilet overflow structure is communicated with the sewer independently of the sewage pipe.

The average cross-sectional area of an overflow pipeline of the toilet overflow structure is 113.04mm²To 961.63mm²In the meantime.

The average cross-sectional area of an overflow pipeline of the toilet overflow structure is 200.96mm²。

The toilet seat water guide channel, the auxiliary water channel and the overflow pipeline of the toilet overflow structure can supply flushing water to pass through the toilet seat overflow structure, and the water division ratio is 0.8: 3.5: 0.45.

according to the overflow structure of the closestool, the overflow hole of the overflow pipeline is directly arranged on the wall of the water inlet cavity, and after washing water enters the water inlet cavity each time, a small part of water flows through the overflow hole comprehensively at a high speed and then flows into the overflow pipeline, so that the overflow hole and the overflow pipeline can obtain a better washing and cleaning effect compared with the prior art, and the sanitation and cleanness of the pipeline are ensured and improved.

In addition, the overflow hole is arranged on the wall of the water inlet cavity instead of the known water inlet cavity, compared with the known water inlet cavity arranged on the surface of the pool cavity, the overflow hole can be effectively hidden and shielded in the water inlet cavity, so that the overflow hole can not be seen from the outside completely, the integral aesthetic property is further ensured, more importantly, the phenomenon that the known overflow hole is easy to be splashed, adhered and attached by excrement directly or indirectly can be effectively avoided, the sanitation and cleanness of the overflow hole and even an overflow pipeline can also be ensured, and any odor caused by the known adhesion and attachment can not be worried about completely.

Drawings

Fig. 1 is a perspective view of a toilet body according to a first embodiment of the present invention, and illustrates an overflow pipe.

Fig. 2 is a perspective sectional view of the first embodiment of the present invention taken along the front-rear direction of the central portion of the toilet body.

Fig. 3 is a side sectional view of the first embodiment of the present invention taken along the front and rear direction of the central portion of the toilet body.

Fig. 4 is a transverse perspective sectional view of a toilet body at an overflow hole of an overflow duct according to a first embodiment of the present invention.

Fig. 5 is a schematic perspective external view of an overflow pipe according to a first embodiment of the present invention.

Fig. 6 is a side sectional view of the second embodiment of the present invention taken along the front and rear direction of the central portion of the toilet body.

Wherein, in the figures, the respective reference numerals:

10-a toilet body; 101-one side; 102-the other side; 11-a water inlet cavity; 12-a pool cavity; 121-a first water seal; 122-water level; 13-seat ring water guide channel; 14-secondary water channel; 15-a sewage draining pipeline; 151-a sewage draining outlet; 152-upper edge; 16-an overflow conduit; 161-overflow holes; 162-overflow drain; 163-bending site; 164-a second water seal; 165-a first flow guide; 166-a second flow guide; 17-a seat ring portion; h-height difference.

Detailed Description

The utility model is further illustrated with reference to the following figures and examples.

As shown in fig. 1 to 4, the present invention provides a first embodiment of a toilet bowl overflow structure, which mainly comprises a toilet bowl body 10, wherein the toilet bowl body 10 has a water inlet cavity 11, a bowl cavity 12, a seat water guide channel 13 and a secondary water channel 14 for guiding washing water in the water inlet cavity 11 to the bowl cavity 12, a sewage discharge pipe 15 for discharging sewage in the bowl cavity 12 to an external sewer, and an overflow pipe 16 for discharging rising accumulated water in the bowl cavity 12 to the external sewer; the main improvement lies in that:

the auxiliary waterway 14 is disposed inside one side 101 of the left and right sides of the toilet body 10.

A part of the overflow pipe 16 is disposed inside the other side 102 of the toilet body 10 on the left and both sides of which the secondary water channel 14 is not disposed, and the other part thereof is disposed inside the toilet body 10 approximately in front of the pool cavity 12 and the sewage drain 15, and an inlet end of the overflow pipe 16 is communicated with the water inlet cavity 11, and an overflow hole 161 is formed on a wall of the water inlet cavity 11, and a height position of the overflow hole 161 is between the water surface 122 of the pool cavity 12 storing the first water seal 121 and the seat water guide channel 13.

In this embodiment, the overflow pipe 16 is integrally formed inside the toilet body 10.

In this embodiment, the outlet end of the overflow pipe 16 has an overflow drain 162, and the overflow drain 162 communicates with the sewage in a manner independent of the sewage pipe 15. Generally, the toilet body 10 is mounted on a flange or flange of a toilet bowl on the floor, and the flange has a through hole, so that the outlet 151 of the sewage pipe 15 and the outlet 162 of the overflow pipe 16 can be communicated to the sewer or the ground through the through hole. In other words, the outlet ends of the sewage pipe 15 and the overflow pipe 16 are communicated with the through openings independently of each other, so that the design has the advantages that: the overflow pipe 16 can be completely clear of the sewage pipe 15, so that no matter where the sewage pipe 15 is blocked, the overflow effect of the overflow pipe 16 is not affected.

In this embodiment, the overflow pipe 16 is formed with a bent portion 163 to allow the water to accumulate and form a second water seal 164. In other words, after the washing water flows into the overflow pipe 16, a part of the washing water is naturally accumulated inside the pipe of the bent portion 163 to form the second water seal 164 by the U-shaped design of the bent portion 163, thereby blocking the odor drifting upwards from the sewer.

In this embodiment, the overflow pipe 16 has a first diversion portion 165 and a second diversion portion 166 which are communicated with each other; the first guide portion 165 is mainly disposed at an edge side portion of the toilet body 10 where the secondary waterway 14 is not provided, and the overflow hole 161 is formed at an inlet end thereof, and as is apparent from the drawing, the first guide portion 165 is mainly disposed to extend forward along the edge side portion from a wall on the opposite side of the water inlet chamber 11, and the height position of the waterway is gradually lowered or partially kept horizontal substantially along the extending direction; the second guiding portion 166 is mainly disposed at the front portion of the toilet body 10, and the outlet end thereof is formed with the overflow discharging hole 162 for communicating with the sewage, and as is clear from the figure, the height position of the water course thereof is extended backward by a short distance, and then it starts to extend downward to form the bending portion 163, and then it is extended to the sewage.

As described above, since the height position of the overflow hole 161 is between the water surface 122 of the first water seal 121 stored in the chamber 12 and the seat water guide channel 13, when the sewage pipe 15 is blocked, or the flush water is continuously injected into the water due to the failure of the water inlet switch, or both of them occur simultaneously, and the height of the water surface 122 of the first water seal 121 rises abnormally, the flush water or the sewage in the chamber 12 will flow back to the secondary water passage 14 and then to the water inlet chamber 11, and when the height of the water surface 122 rises continuously over the height of the overflow hole 161, the flush water or the sewage flowing back into the water inlet chamber 11 along the secondary water passage 14 will flow into the overflow pipe 16 from the overflow hole 161 formed on the wall of the water inlet chamber 11 and then be discharged to the sewer; accordingly, it is possible to prevent the flush water, particularly, the sewage or the excrement from overflowing from the seat portion 17 of the toilet body 10 to the floor.

Generally speaking, the position of the upper edge 152 of the inlet end of the sewage pipe 15 for communicating with the pool cavity 12 and the water surface 122 of the first water seal 121 have a predetermined height difference h, for example, about 55mm, as shown in fig. 3, so that the height position of the overflow hole 161 exceeds the height position of the upper edge 152 by at least 55mm but is lower than the height position of the seat water guide channel 13.

In addition, since the overflow hole 161 is directly disposed on the wall of the water inlet chamber 11, when the washing water enters the water inlet chamber 11, a small part of the water flows through the overflow hole 161 in a full-scale manner at a high speed and then flows into the overflow pipe 16, so that a good washing effect can be generated for the overflow hole 161 and the overflow pipe 16, thereby ensuring sanitation and cleanness of the pipes.

More importantly, the overflow hole 161 is instead arranged on the wall of the water inlet cavity 11, and compared with the traditional arrangement on the surface of the pool cavity, the overflow hole 161 can be effectively hidden and shielded in the water inlet cavity 11, so that the overflow hole can not be seen from the outside, and the integral aesthetic property is ensured, more importantly, the phenomenon that the known overflow hole is easy to be splashed, adhered and attached by excrement directly or indirectly can be effectively avoided, and therefore, the sanitation and cleanness of the overflow hole 161 and even the overflow pipeline 16 are further ensured, and any odor caused by the known adhesion and attachment can not be generated.

In principle, the cross-sectional shape of the overflow pipe 16 is not limited, and may be, in particular, a common circle, ellipse or polygon, depending mainly on the state of the ceramic slurry. Taking a circular cross-sectional area as an example, after repeated experiments and tests, theWhen the diameter of the overflow pipe 16 is less than 12mm, the overflow amount is too low to achieve the expected overflow effect, when the diameter is more than 35mm, the flushing water flowing through the auxiliary water channel 14 is excessively distributed in the overflow pipe 16, which affects the normal flushing efficiency of the toilet, so the feasible pipe diameter is between 12mm and 35mmn, preferably the pipe diameter is about 16mm, the sectional area is converted from the pipe diameter, and the average sectional area of the overflow pipe 16 is 113.04mm²To 961.63mm²And at 200.96mm²The right and left are preferable.

As is clear from fig. 5, the overflow pipe 16 of the present embodiment has several important sections, and the present embodiment generally indicates six important sections, and experiments and tests show that the curvature radius R1 to R6 of each section has specific upper limit, lower limit and optimal value, so that in principle, as long as the curvature radius of each section is within the range of the upper limit and the lower limit, the overflow pipe 16 can be ensured to have good water flow guiding effect, and the generation of turbulence in the pipe can be minimized to achieve the desired overflow effect, and at the same time, the second diversion part 166 can be ensured to form the second water seal 164, so that the overflow pipe 16 can be normally operated and operated.

[ TABLE ] A

As shown in fig. 6, the present invention further provides a second embodiment of a toilet bowl overflow structure, the toilet bowl overflow structure of this embodiment is substantially the same as the above first embodiment, and the differences are only that:

the outlet end of the overflow pipe 16 of the present embodiment is communicated with the end portion of the sewage pipe 15, and therefore, the outlet end of the overflow pipe forms the overflow discharge port 162 which is just located at the end portion of the sewage pipe 15, but not directly communicated with the through hole of the toilet flange, so the design can properly simplify the structure of the overflow pipe 16, and because the blockage situation of the sewage pipe 15 mostly occurs at the upstream of the end portion, the blockage of the general sewage pipe 15 usually does not affect the operation of the overflow pipe 16, and only very few special situations may be affected.

As can be seen from the above description, after the flushing water from the water tank or other water source enters the water inlet cavity 11 during each flushing operation, as shown in fig. 2 and 3, the flushing water respectively enters the seat ring water guide channel 13, the auxiliary water channel 14 and the overflow pipe 16, so as to form three diversion water channels, it can be easily understood that by using a proper diversion ratio, the water consumed in the overflow pipe 16 during the normal flushing process can be ensured, and the sanitation and cleanness of the overflow pipe 16 can be maintained, and the flushing and sewage discharging efficiency of other water channels is not affected. Accordingly, through repeated experiments and tests, the above-mentioned effect can be achieved by a desirable water division ratio, that is, when the ratio of the water amount passing through the seat ring water guide passage 13, the auxiliary water passage 14 and the overflow pipe 16 is 0.8: 3.5: 0.45, the above effects can be surely achieved. Further, taking the common water consumption of 4.8 liters (L) as an example, by using the above-mentioned water division ratio design, it can be calculated that the water amount which can be distributed by the seat ring water guide channel 13 is about 0.808 liters, and similarly, the water amount which can be distributed by the auxiliary water channel 14 is about 3.537 liters, and the water amount which can be distributed by the overflow channel 16 is about 0.455 liters.

While the utility model has been described in detail and with reference to specific embodiments thereof, it will be apparent to one skilled in the art that various alternatives and modifications can be made therein in light of the above teachings; accordingly, all such alternatives and modifications as may be devised based on the disclosure herein are intended to be included within the spirit and scope of the present claims.

Claims (11)

1. The closestool overflow structure comprises a closestool body, wherein the closestool body is provided with a water inlet cavity, a pool cavity, a seat ring water guide channel and an auxiliary water channel which are used for guiding flushing water in the water inlet cavity to the pool cavity, a sewage discharge pipeline which is used for discharging sewage in the pool cavity to an external sewer, and an overflow pipeline which is used for discharging accumulated water rising in the pool cavity to the external sewer; the method is characterized in that:

the auxiliary water channel is arranged in one side of the left side and the right side of the closestool body;

one part of the overflow pipeline is arranged inside the other side of the left side and the two sides of the closestool body, which is not provided with the auxiliary water channel, the other part of the overflow pipeline is arranged inside the front of the pool cavity and the sewage discharge pipeline, the inlet end of the overflow pipeline is communicated with the water inlet cavity, an overflow hole is formed on the wall of the water inlet cavity, and the height position of the overflow hole is between the water surface of the first water seal accumulated in the pool cavity and the seat ring water guide channel.

2. The toilet overflow structure of claim 1, wherein the overflow conduit is integrally formed within the toilet body.

3. The toilet overflow structure of claim 2, wherein the outlet end of the overflow conduit has an overflow drain opening that communicates with a distal portion of the waste conduit.

4. The toilet overflow structure of claim 2, wherein the outlet end of the overflow conduit has an overflow drain that communicates with the sewer independently of the sewer conduit.

5. The overflow structure for toilets of claim 1, wherein said overflow conduit is formed with a bend that allows water to accumulate therein forming a second seal.

6. The toilet overflow structure of claim 1, wherein the overflow conduit has a first flow guide and a second flow guide in communication with each other; the first flow guide part is mainly arranged at the side part of the closestool body, and the inlet end of the first flow guide part is provided with the overflow hole; the second diversion part is mainly arranged at the front part of the closestool body, and an overflow discharge port is formed at the outlet end of the second diversion part and is communicated with the sewer.

7. The toilet bowl overflow structure of claim 6, wherein the overflow drain of the overflow conduit communicates with a distal portion of the waste conduit.

8. The toilet overflow structure of claim 6, wherein the overflow drain of the overflow conduit communicates with the sewer independently of the sewer.

9. A toilet overflow structure as claimed in claim 1, wherein the average cross-sectional area of the overflow conduit is between 113.04mm²To 961.63mm²In the meantime.

10. A toilet overflow structure as claimed in claim 9, wherein the average cross-sectional area of the overflow conduit is 200.96mm²。

11. A toilet overflow structure according to claim 1, wherein the seat water channel, the secondary water channel and the overflow conduit of the toilet overflow structure are capable of providing a water split ratio of 0.8: 3.5: 0.45.

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