Patent Application
20180171615
The present invention application claims the priority right of the Chinese patent application No. 201621396226.9 entitled as “FLUSHING STRUCTURE OF TOILET AND TOILET” such that the full text thereof is cited here as reference.
The present application relates to the technical field of sanitary wares, especially a flushing structure of a toilet and a toilet having the flushing structure.
In order to save water resources, existing toilets are mostly siphon-type toilets which bring sewage out of the toilet bowl through siphonage formed during water drainage with strong ability of sewage discharge, and they are more water-saving than ordinary wash-down toilets. Flushing structures of existing siphon-type toilets generally comprise a jet waterway to directly eject towards the inlet of the sewage discharge waterway at the bottom of the toilet bowl to assist in formation of siphonage. However, as most jet waterways are in communication with a rim waterway for flushing the inner wall of the toilet bowl, air will enter the jet waterway through the rim waterway, and during water drainage, air in the jet waterway needs to be exhausted first, so as to form siphon-type drainage to speed up drainage. In order to solve the abovementioned problem, in the prior art, there is a solution of providing a check valve between the jet waterway and the rim waterway to prevent air from entering the jet waterway through the rim waterway after drainage. However, the check valve on the toilet has a small mounting space and is difficult to mount, the structure of the toilet is complex and it costs much. There is another technical solution of using separate jet waterway and rim waterways which are not in communication to solve the abovementioned problem. However, such technical solution needs two drain valves to respectively control the on and off states of the jet waterway and rim waterway, two drain valves cost much and ceramic production technology of two separate waterways are complex. Besides, there is also a technical solution of using a water seal structure to prevent air from entering the jet waterway through the rim waterway after drainage. However, most flushing waterways of toilets having a water seal structure have a complex structure, ceramic production technology is also complex, much modification of the inner structure of the toilet is involved, which results in high cost of modification. Moreover, for existing flushing waterways of toilets having a water seal structure in the market, some provide the inlet of the rim waterway nearby the jet hole, or although the inlet of the rim waterway is not provided nearby the jet hole, there is no enough upward section between the jet hole and the inlet of the rim waterway, such that during flushing, polluted water nearby the jet hole will be flushed into the rim waterway and flow out of a rim hole, causing a problem of secondary pollution of the toilet bowl or even blocking of the rim hole by sewage.
In order to solve at least one of the abovementioned problems, the present application provides a flushing structure of a toilet and a toilet, which may rapidly facilitate formation of siphonage of the toilet. The flushing structure may also prevent sewage nearby the jet hole from flowing into the rim waterway and causing a problem of secondary pollution of the toilet bowl.
To achieve the above purpose, the application adopts the following technical solution: A flushing structure of a toilet comprises a main waterway, a jet waterway and a rim waterway. An inlet of the main waterway is in communication with an outlet of a toilet tank. An outlet of the main waterway is in communication with an inlet of the jet waterway and an inlet of the rim waterway. An outlet of the jet waterway is in communication with a jet hole beneath a water surface of a first water seal at the bottom of the toilet bowl. An outlet of the rim waterway is in communication with a rim hole provided on the toilet bowl for flushing the inner wall of the toilet bowl. A second water seal, whose surface is on the same level with surface of the first water seal, is provided on the rim waterway. The main waterway and the jet waterway are isolated from air via the first water seal and second water seal.
Further, an upward section, which prevents sewage nearby the jet hole from being flushed into the rim waterway, is provided between the outlet of the jet waterway and the inlet of the rim waterway.
Further, the outlet of the main waterway, the inlet of the jet waterway and the inlet of the rim waterway are all at the rear of the toilet bowl, the rim waterway and the jet waterway extend from the rear of the toilet bowl along the left and right sides of the toilet bowl, respectively.
Further, the inlet of the jet waterway is higher than the outlet of the jet waterway, the jet waterway extends downwards and obliquely from the outlet of the main waterway along a wall surface of the toilet bowl and gradually turns to extend to the jet hole, the portion on the jet waterway that extends downwards and obliquely forms the upward section; the rim waterway extends downwards and obliquely from the outlet of the main waterway along the wall surface of the toilet bowl and turns to extend upwards to form the second water seal.
Further, the outlet of the jet waterway extends upwards from the outlet of the main waterway along the wall surface of the toilet bowl, and gradually turns to extend downwards and obliquely, and gradually turns to extend to the jet hole, the portion on the jet waterway that extends downwards and obliquely forms the upward section; the rim waterway extends downwards and obliquely from the outlet of the main waterway along the wall surface of the toilet bowl and turns to extend upwards to form the second water seal.
Further, the outlet of the main waterway, the inlet of the jet waterway and the inlet of the rim waterway are all above the water surfaces of the first water seal and second water seal.
Further, the rim waterway and the jet waterway extend from corresponding inlet to corresponding outlet respectively.
Further, pipe diameters of the rim waterway and the jet waterway are smaller than a pipe diameter of the main waterway, and the pipe diameter of the rim waterway is smaller than that of the jet waterway.
Further, the flushing structure further comprises a rim channel provided on the top of the toilet bowl, the rim holes are provided on the rim channel and separated each other, the outlet of the rim waterway is in communication with the rim channel, such that water of the rim waterway flows to the rim channel and flows out of the rim holes on the rim channel downwards to flush the inner wall of the toilet bowl.
Further, the rim hole is provided on the inner wall of the toilet bowl, such that water of the rim waterway flows out of the rim hole and forms whirly waterflow to flush the inner wall of the toilet bowl.
Further, the flushing structure further comprises an overflow waterway in communication with an overflow pipe in the toilet tank, and an outlet of the overflow waterway is in communication with the rim waterway at downstream of the second water seal.
Further, the rim waterway extends downwards and obliquely from the outlet of the main waterway along the wall surface of the toilet bowl and turns to extend upwards to form the second water seal.
The present application has the following advantageous effects over the background art:
The present application provides a second water seal, whose surface is on the same level with surface of the first water seal at the bottom of the toilet bowl, on the rim waterway, and the main waterway and the jet waterway are isolated from air by two water seals, such that, when a drainage unit, which can open and close the outlet of the toilet tank, does not drain water, the main waterway and jet waterway of the toilet are full of water or substantially full of water after multiple drainage cycles. That is to say, prestored water forms in the main waterway and the jet waterway. When the drainage unit drains water, the prestored water in the main waterway and the jet waterway can speed up formation of siphonage of the toilet. Moreover, an upward section, which can prevent sewage nearby the jet hole from being flushed into the rim waterway, is provided between the outlet of the jet waterway and the inlet of the rim waterway, so as to avoid the problems of secondary pollution of the toilet bowl and blocking of the rim hole, which is more healthy and reliable.
Besides, the outlet of the main waterway, the inlet of the jet waterway and the inlet of the rim waterway are provided at the rear of the toilet bowl, such that the rim waterway and the jet waterway extend from the rear of the toilet bowl along the left and right sides of the toilet bowl, respectively. Such flushing structure is easy to form and the structure is simple. Moreover, costs of modifications based on existing toilets are low, waterflow is smooth and flushing effect is great.
Drawings herein are used to provide further understanding of the present application, which constitute a portion of the present application. The schematic embodiments and description of the present application are used for explaining the present utility, and do not constitute improper delimitations of the present application. In the drawings:
The outlet 12 of the main waterway, the inlet 21 of the jet waterway and the inlet 31 of the rim waterway coincide with each other. In the present embodiment, preferably, the outlet 12 of the main waterway, the inlet 21 of the jet waterway and the inlet 31 of the rim waterway are all at the rear of the toilet bowl 1. Specifically, the jet hole 5 is in front of the toilet bowl 1 and faces an inlet 41 of a sewage discharge waterway 40 at the rear of the toilet bowl 1. The rim waterway 30 and the jet waterway 20 extend from the rear of the toilet bowl 1 along the left and right sides of the toilet bowl 1, respectively. Such flushing structure is easy to form and the structure is simple. Moreover, costs of modifications based on existing toilets are low, waterflow is smooth and flushing effect is great. As shown by
In the present embodiment, the outlet 12 of the main waterway, the inlet 21 of the jet waterway and the inlet 31 of the rim waterway may be all located above the water surfaces of the first water seal A and second water seal B, which may further enlarge the height of the upward section H between the outlet 22 of the jet waterway and the inlet 31 of the rim waterway, thereby further reducing the risk that sewage nearby the jet hole 5 may be flushed into the rim waterway 30, and the function is more reliable. Certainly, the outlet 12 of the main waterway, the inlet 21 of the jet waterway and the inlet 31 of the rim waterway may also be all located beneath the water surfaces of the first water seal A and second water seal B. The specific position is not restricted.
In the present embodiment, preferably, the rim waterway 30 and the jet waterway 20 extend from corresponding inlet to corresponding outlet independently of each other, which has an advantage that the two waterways do not interfere with each other, thereby making the flushing effect of the rim waterway 30 and the jet waterway 20 more stable.
Preferably, pipe diameters of the rim waterway 30 and the jet waterway 20 are smaller than a pipe diameter of the main waterway 10, and the pipe diameter of the rim waterway 30 is smaller than that of the jet waterway 20. The jet waterway 20 uses much water, mostly for playing a major role of flushing, while the rim waterway 30 uses less water, mostly for cleaning the inner wall of the toilet bowl 1.
In the present embodiment, one said rim hole 6 is provided on the inner wall of the toilet bowl 1. Water of the rim waterway 30 flows out of the rim hole 6 and forms whirly waterflow to flush the inner wall of the toilet bowl 1.
Besides, in order to fit with an overflow pipe 4 which is usually provided in the water tank 2 of an ordinary toilet 100, the flushing structure of a toilet according to the present embodiment further comprises an overflow waterway 60 is in communication with the overflow pipe 4 in the toilet water tank 2. An outlet of the overflow waterway 60 is in communication with the rim waterway 30 at downstream of the second water seal B, such that water of the overflow waterway 60 can flow into the toilet bowl 1 through the rim waterway 30. Moreover, as the outlet of the overflow waterway 60 is in communication with the rim waterway 30 downstream of the second water seal B, air won't flow through the overflow waterway 60 into the main waterway 10 and the jet waterway 20 which need to be isolated from air.
During drainage, the drainage element 3 opens the outlet 201, water inside the water tank 2 flows into the main waterway 10 and is divided into two streams at the outlet 12 of the main waterway. One stream flows from the inlet 21 of the jet waterway into the jet waterway 20 and ejected out of the outlet 22 of the jet waterway to assist in formation of siphonage of the sewage discharge waterway 40. The other stream flows from the inlet 31 of the rim waterway into the rim waterway 30 and flows out of the outlet 31 of the rim waterway after flowing through the second water seal B to clean the inner wall of the toilet bowl 1. The waterway structure of the flushing structure is simple, the ceramic toilet is easy to form, and costs of modifications based on existing toilets are low. Especially, it can prevent sewage nearby the jet hole 5 from being flushed into the rim waterway 30 and rapidly facilitates formation of siphonage of the toilet.
The outlet of the overflow waterway 60 is in communication with the rim channel 50. Certainly, the outlet of the overflow waterway 60 may also be in communication with the rim waterway 30 downstream of the second water seal B, as described in the aforementioned embodiment. Choice may be made according to specific requirements.
It is worth mentioning that, according to the present application, the upward section H between the outlet 22 of the jet waterway and the inlet 31 of the rim waterway may be a complete pipe segment, and of course it may also consist of a plurality of upward pipe segments, for example, when the jet waterway 20 extends deviously in a wave mode, there are a plurality of upward sections between the outlet 22 of the jet waterway and the inlet 31 of the rim waterway, and the plurality of upward sections jointly constitute the upward section H which can prevent sewage nearby the jet hole 5 from being flushed into the rim waterway 30.
The above-mentioned are only principles and preferred embodiments of the present application. It should be pointed out that, for those ordinary people skilled in the art, some other modifications may be made based on the principle of the present application, which should also be regarded as the protection scope of the present application.
| Number | Date | Country | Kind |
|---|---|---|---|
| 201621396226.9 | Dec 2016 | CN | national |
