Siphon type closestool

Abstract

The utility model relates to the technical field of bathroom closestools, and discloses a siphoning type closestool which comprises a flushing flow channel and a closestool body, and a seat pool is arranged in the closestool body. The flushing runner comprises a water inlet section and a flushing section, a water inlet is formed in one end of the water inlet section and located in the rear side of the closestool body, the other end of the water inlet section is communicated with one end of the flushing section, and the bottom of the water inlet section protrudes upwards to form a water retaining weir. The water retaining weir divides the flushing flow channel into an upper layer cavity located above the water retaining weir, a water storage cavity and a water drainage cavity, the water storage cavity and the water drainage cavity are located on the two sides of the water retaining weir respectively, the water storage cavity is located on the side close to the water inlet and communicated with the water inlet, and the water storage cavity and the water drainage cavity are communicated through the upper layer cavity. According to the utility model, the flushing effect of the closestool can be optimized, the bubble phenomenon during flushing is effectively solved, and water splashing is avoided.

Description

Technical Field

[0001] The utility model relates to the technical field of sanitary toilets, in particular to a siphonic toilet. Background Art

[0002] In the field of modern sanitary ware, siphonic toilets are widely popular due to their beauty, space saving and easy cleaning. However, existing siphonic toilets, especially wall-mounted siphonic toilets, have certain technical defects.

[0003] Refer to Figure 1 and Figure 2 , a siphonic toilet mainly includes a water tank 4, a toilet body 3, a sewer pipe 1, a flushing water channel 2, a jet port 22 communicated with the flushing water channel 2, and a toilet bowl 32. Due to the large distance between the water surface 6 in the water tank 4 and the toilet bowl 32, a large number of cavities are formed in the flushing water channel 2 above the sewer pipe 1 to the water surface 6, and there is a relatively large amount of accumulated gas 5. During the flushing process, the water flow pushes the air in the sewer pipe 1 into the flushing water channel 2. Since the inlet section of the flushing water channel 2 is a relatively horizontal straight section, the water flow will quickly fill the straight section of the flushing water channel 2, causing the gas 5 to be squeezed below the flushing water channel 2 and can only be discharged through the jet port 22.

[0004] As a result, when flushing, the gas 5 in the flushing water channel 2 is discharged from the jet port 22, forming a large bubble phenomenon at the jet port 22 and exploding at the water surface 6, which not only seriously affects the flushing effect but also is accompanied by splashing, seriously affecting the user experience. Summary of the Utility Model

[0005] The purpose of the utility model is to design a siphonic toilet that can optimize the flushing effect and eliminate the splashing phenomenon.

[0006] To achieve the above purpose, the utility model provides a siphonic toilet, including a flushing water channel and a toilet body. A toilet bowl is arranged in the toilet body; the flushing water channel includes an inlet section and a flushing section. One end of the inlet section is provided with an inlet, and the inlet is located at the rear side of the toilet body. The other end of the inlet section is communicated with one end of the flushing section.

[0007] A water retaining weir is formed by upward protrusion at the bottom of the inlet section. The water retaining weir divides the flushing water channel into an upper chamber above the water retaining weir, a water storage chamber and a drainage chamber respectively located on both sides of the water retaining weir. The water storage chamber is located on the side close to the inlet and is communicated with the inlet. The water storage chamber and the drainage chamber are communicated through the upper chamber.

[0008] Further, the dimension of the top of the water retaining weir in the front-back direction is B mm, and the minimum distance between the top of the water retaining weir and the inner top wall of the flushing water channel is A mm, where A / B = 0.67 - 2.5.

[0009] Further, the flushing water channel and the toilet body are of an integral structure.

[0010] Further, a sewer pipe is further included, and the lower end of the sewer pipe is communicated with the water inlet.

[0011] Further, a cavity horizontally communicated with the water storage cavity is arranged below the sewer pipe.

[0012] Further, the bottom of the cavity is connected with the bottom of the water storage cavity.

[0013] Further, a jet port is arranged at one end of the flushing section away from the water inlet section, and the jet port communicates with the drainage cavity and the toilet bowl.

[0014] Further, a washing ring channel and a pressure cavity are further formed in the toilet body;

[0015] The washing ring channel includes a washing ring inlet, a washing ring outlet, and a channel connecting the washing ring inlet and the washing ring outlet. The washing ring inlet is communicated with the upper layer cavity, and the washing ring outlet is communicated with the toilet bowl; the pressure cavity is vertically communicated with the channel at the washing ring outlet, and the washing ring outlet is located below the cavity opening of the pressure cavity, the channel, and the washing ring inlet.

[0016] Further, the pressure cavity and the channel are formed at the upper end of the toilet body, and the top of the pressure cavity and the top of the channel are at the same horizontal height, and the pressure cavity extends towards the front end of the toilet body.

[0017] Further, a water tank is further included, the water tank is arranged above the toilet body, and the upper end of the sewer pipe is communicated with the water tank.

[0018] Compared with the prior art, the siphon toilet of the embodiment of the present utility model has the beneficial effects that:

[0019] The siphonic toilet according to the embodiment of the present utility model is provided with a water retaining weir protruding upward in the water inlet section in its flushing water flow channel. During the flushing process, water enters the water inlet section and overflows and flows down through the top of the water retaining weir. According to the weir flow principle, the upper edge of the overflow water surface is not restricted and presents a continuous free-falling water surface flow state, that is, the water will flow downward along the weir wall of the water retaining weir, preferentially filling the lower drainage cavity, driving the gas in the flushing water flow channel to the upper cavity; since the drainage cavity below the flushing water flow channel is preferentially filled with water, there is no air discharged from the jet orifice communicated with the drainage cavity, and it will not impact the water seal surface and cause bubbles to appear on the water seal surface; at the same time, since the water directly flows through the flushing section of the flushing water flow channel and sprays out from the jet orifice, there is no need to exhaust air, shortening the water outlet time of the jet orifice, and the sewage pipe at the bottom of the toilet bowl can be filled faster, and the siphon phenomenon is generated faster, greatly improving the user experience. Description of the Drawings

[0020] Figure 1 is a schematic diagram of the internal accumulated gas in a siphonic toilet in the prior art;

[0021] Figure 2 is a schematic diagram of the water flow during the flushing process of a siphonic toilet in the prior art;

[0022] Figure 3 is a schematic structural diagram of the siphonic toilet according to the embodiment of the present utility model;

[0023] Figure 4 is a cross-sectional view of the toilet body and the side of the flushing water flow channel according to the embodiment of the present utility model;

[0024] Figure 5 is a schematic diagram of the water flow and gas discharge during the flushing process of the siphonic toilet according to the embodiment of the present utility model;

[0025] Figure 6 is a partial top view of the siphonic toilet according to the embodiment of the present utility model;

[0026] Figure 7 is a partial cross-sectional view of the side of the siphonic toilet according to the embodiment of the present utility model.

[0027] In the figure, 1, sewer pipe; 11, cavity; 2, flushing water flow channel; 21, water inlet; 22, jet orifice; 23, water retaining weir; 24, upper cavity; 25, water storage cavity; 26, drainage cavity; 28, water inlet section; 29, flushing section; 3, toilet body; 31, wash ring flow channel; 311, channel; 312, wash ring inlet; 313, wash ring outlet; 32, toilet bowl; 33, pressure cavity; 4, water tank; 5, gas; 6, water seal surface. Detailed Embodiments

[0028] The following will further describe in detail the specific embodiments of the present utility model in conjunction with the accompanying drawings and embodiments. The following embodiments are used to illustrate the present utility model, but are not used to limit the scope of the present utility model.

[0029] In the description of the present utility model, it should be understood that the orientation or positional relationship indicated by the terms "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", etc. in the present utility model is based on the orientation or positional relationship shown in the accompanying drawings. It is only for the convenience of describing the present utility model and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be construed as a limitation to the present utility model.

[0030] In the description of the present utility model, it should be understood that the terms "connected", "connected to", "fixed", etc. used in the present utility model should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or integrated; it can be a mechanical connection, a welded connection; it can be directly connected, or indirectly connected through an intermediate medium. It can be the communication inside two elements or the interaction relationship between two elements, unless otherwise clearly defined. For those of ordinary skill in the art, the specific meanings of the above terms in the present utility model can be understood according to specific circumstances.

[0031] The terms "first", "second", etc. are used in the present utility model to describe various information, but this information should not be limited to these terms. These terms are only used to distinguish the same type of information from each other. For example, without departing from the scope of the present utility model, the "first" information can also be called the "second" information. Similarly, the "second" information can also be called the "first" information.

[0032] In the description of the present utility model, the front direction when the user normally uses the toilet for toileting is defined as "front", and the back direction is defined as "rear".

[0033] Refer to Figure 3 , a siphon toilet according to an embodiment of the present utility model includes a flushing water channel 2 and a toilet body 3. A seat pool 32 is provided in the toilet body 3; the flushing water channel 2 includes a water inlet section 28 and a flushing section 29. One end of the water inlet section 28 is provided with a water inlet 21, the water inlet 21 is located at the rear side of the toilet body 3, and the other end of the water inlet section 28 is communicated with one end of the flushing section 29.

[0034] An end portion of the water inlet section 28 close to the flushing section 29 is convex upward to form a water retaining weir 23. The water retaining weir 23 divides the flushing water flow channel 2 into an upper cavity 24 above the water retaining weir 23, a water storage cavity 25 and a drainage cavity 26 respectively located on both sides of the water retaining weir 23. The water storage cavity 25 is located on a side close to the water inlet 21 and communicates with the water inlet 21. The water storage cavity 25 and the drainage cavity 26 communicate with each other through the upper cavity 24. Specifically, the water storage cavity 25 is located at the rear side of the water retaining weir 23, and the drainage cavity 26 is located at the front side of the water retaining weir 23.

[0035] Referring to Figure 5 , during the flushing process, water flows over the top of the water retaining weir 23 and spills downward. According to the weir flow principle, the upper edge of the overflow water surface is unconstrained and presents a continuous free-falling water surface flow state, that is, the water will flow downward along the weir wall of the water retaining weir 23 from the rear to the front, preferentially filling the lower drainage cavity 26, and driving the gas 5 in the flushing water flow channel 2, especially in the drainage cavity 26, into the upper cavity 24. Since the drainage cavity 26 below the flushing water flow channel 2 is preferentially filled with water, no air is discharged from the injection port 22 communicating with the drainage cavity 26, thereby avoiding the phenomenon of air bubbles appearing on the water cover surface due to the discharge of the gas 5 with the water flow. At the same time, since the water flow directly passes through the flushing section of the flushing water flow channel and sprays out from the injection port, there is no need for exhaust, shortening the water outlet time of the injection port, enabling the sewage pipe at the bottom of the toilet bowl to be filled faster, generating the siphon phenomenon faster, and greatly improving the user experience.

[0036] Referring to Figure 4 , in some embodiments of the present application, the dimension of the top of the water retaining weir 23 in the front-rear direction is B mm, that is, the thickness of the weir top is B mm; the minimum distance between the top of the water retaining weir 23 and the inner top wall of the flushing water flow channel 2 is A mm, that is, the water head dimension in front of the weir is A mm, where A / B = 0.67 - 2.5.

[0037] By precisely controlling the ratio of the weir top thickness B to the water head A in front of the weir, making the range of A / B within 0.67 - 2.5, the weir top thickness B affects the shape of the water tongue, forming a water tongue with a curved or folded longitudinal section, so as to optimize the dynamics of the water flow, reduce the impact of the water flow on the gas 5 in the drainage cavity 26, facilitate the natural extrusion of the gas 5 to rise into the upper cavity 24, avoid the formation of air bubbles at the injection port 22, and prevent the occurrence of splashing phenomenon.

[0038] In some embodiments of the present application, the flushing water channel 2 and the toilet body 3 are of an integral structure. The integrated design enhances the structural stability, can reduce the connection points between components to reduce the potential water leakage risk, and at the same time simplifies the internal structure of the toilet body, which helps to reduce the complexity and cost in the manufacturing process. Specifically, the toilet body 3 is made of ceramic material, and the flushing water channel 2 is also made of ceramic material and is a structure formed inside the toilet body 3 during its manufacturing. In some other embodiments, the flushing water channel 2 can also be made of other materials such as rubber or plastic and then installed in the ceramic toilet body 3.

[0039] In some embodiments of the present application, it further includes a sewer pipe 1. The upper end of the sewer pipe 1 is used to connect to the water tank 4, and the lower end of the sewer pipe 1 communicates with the water inlet 21. The sewer pipe is used to connect the water tank 4 located above and the toilet body 3. The improvement of the present application can be applied to wall-mounted toilets or non-wall-mounted toilets. Since usually the position of the water tank 4 of a wall-mounted toilet is relatively high and the sewer pipe 1 is relatively long, the stock of gas 5 in the sewer pipe 1 will be more, and it is easier to have bubbles at the jet orifice. Therefore, the improvement of the present application on the splashing phenomenon of wall-mounted toilets is more obvious.

[0040] In some embodiments of the present application, a cavity 11 horizontally communicating with the water storage cavity 25 is provided below the sewer pipe 1. The horizontal communication between the cavity 11 and the water storage cavity 25 forms a water storage trough. When the toilet is in use, the water storage trough can be used to store water, which occupies part of the internal space of the sewer pipe 1 and the water inlet section 28 of the flushing water channel 2. On the one hand, it can reduce the stock of internal gas and reduce the generation of bubbles; on the other hand, it also helps the sewer pipe 1 and the flushing water channel 2 to be quickly filled during the flushing process, shortening the time for the water flow to reach the jet orifice, quickly filling the toilet sewage pipe, and helping to quickly form a siphon effect to improve the flushing efficiency.

[0041] In some embodiments of the present application, the bottom of the cavity 11 is connected to the bottom of the water storage cavity 25. The cavity 11 is located below the sewer pipe 1, and its bottom is connected to the bottom of the water storage cavity 25, that is, the two cavities are directly connected in the horizontal direction, which simplifies the internal structure of the toilet body 3 and reduces the complexity in the manufacturing process; at the same time, the horizontal connection design enables the water between the water storage cavity 25 and the cavity 11 to flow freely, which helps to maintain the stability during the flushing process, reduce phenomena such as the generation of bubbles caused by unstable water flow, and also facilitates the cleaning and maintenance of the toilet body 3.

[0042] In some embodiments of the present application, a jet orifice 22 is provided at one end of the flushing section 29 away from the water inlet section 28, and the jet orifice 22 communicates with the drainage cavity 26 and the toilet bowl 32. Specifically, the flushing section 29 is inclined downward, the jet orifice 22 is opened at the lower part of the flushing section 29 and communicates with the drainage cavity 26, and the jet orifice 22 communicates with the bottom of the toilet bowl 32.

[0043] In some embodiments of the present application, a wash ring flow channel 31 and a pressure cavity 33 are further formed in the toilet body 3; the wash ring flow channel 31 includes a wash ring inlet 312, a wash ring outlet 313, and a channel 311 connecting the wash ring inlet 312 and the wash ring outlet 313. The wash ring inlet 312 communicates with the upper layer cavity 24, and the wash ring outlet 313 communicates with the toilet bowl 32; the pressure cavity 33 communicates with the channel 311 at the wash ring outlet 313 in the vertical direction, and the wash ring outlet 313 is located below the cavity opening of the pressure cavity 33, the channel 311, and the wash ring inlet 312.

[0044] After the toilet is used, the wash ring flow channel 31 can be started automatically or manually to jet water flow to clean the toilet bowl 32. During this process, the water flow and the gas 5 in the upper layer cavity 24 enter the channel 311 from the wash ring inlet 312. Due to gravity, the water flow will flow towards the wash ring outlet 313 prior to the gas 5 and flow out from the wash ring outlet 313. The gas 5 will move upward due to gravity and enter the pressure cavity 33 from the cavity opening of the pressure cavity 33 in the vertical direction; at the same time, since the water flow fills the area at the wash ring outlet 313 downward, it can also block the wash ring outlet 313, further preventing the gas 5 from being discharged through the wash ring outlet 313, effectively avoiding the water flow in the channel 311 squeezing the gas 5 out from the wash ring outlet 313 during flushing, resulting in splashing caused by bubbles.

[0045] In some embodiments of the present application, the pressure cavity 33 and the channel 311 are formed at the upper end of the toilet body 3, and the top of the pressure cavity 33 and the top of the channel 311 are at the same horizontal height, and the pressure cavity 33 extends towards the front end of the toilet body 3.

[0046] Refer to Figure 6 and Figure 7, when flushing the toilet bowl 32, the water flow and the gas 5 in the upper chamber 24 enter the channel 311 from the wash ring inlet 312. Due to gravity, a part of the water flow preferentially flows to the wash ring outlet 313. Another part of the water flow vertically impacts the gas 5 in the direction of the orifice of the pressure chamber 33, squeezing the gas 5 into the pressure chamber 33, and compressing the gas 5 into the top of the pressure chamber 33 on the front side of the toilet body 3 under the action of the water pressure to form compressed air. The compressed air will exert a backward pressure on the water flow in the reverse direction. The water flow at the wash ring outlet 313 is not only affected by the water pressure at the wash ring inlet 312, but also by the reverse pressure of the compressed air, and forms energy concentration under the dual pressures, increasing the water outlet force and enhancing the flushing effect on the toilet bowl 32. In some embodiments of the present application, a water tank 4 is further included, and the water tank 4 is arranged above the toilet body 3. Specifically, the upper end of the sewer pipe 1 is communicated with the water tank 4. Specifically, the water tank 4 is arranged above the rear side of the toilet body 3, and the water in the water tank 4 is stored at a height higher than that of the toilet body 3. During the flushing process, the water in the water tank 4 is released and flows downward by using the gravitational potential energy, passes through the sewer pipe 1 and enters the flushing water flow channel 2 of the toilet body 3, thereby generating a strong flushing force to flush the waste and dirt into the sewer.

[0047] In summary, the embodiment of the present utility model provides a siphon toilet. A water retaining weir 23 protruding upward is arranged in the flushing water flow channel 2. During the flushing process, the water flow can preferentially fill the lower drainage chamber 26, driving the gas 5 in the flushing water flow channel 2 to the upper chamber 24; the gas 5 reaches above the flushing water flow channel 2, enters the channel 311 from the wash ring inlet 312, and forms a reverse pressure on the flushing water flow after being compressed at the rear side of the channel 311, enhancing the flushing effect on the toilet bowl 32; at the same time, since the lower drainage chamber 26 of the flushing water flow channel 2 is preferentially filled with water flow, there is no air discharged from the injection port 22, and no bubble phenomenon will occur; and the injection port 22 does not need to exhaust air, shortening the water outlet time of the injection port 22, enabling the sewage pipe to be filled faster, quickly generating the siphon phenomenon in the sewage pipe, significantly improving the performance of the toilet, and enhancing the user experience.

[0048] The above description is only the preferred embodiment of the present utility model. It should be noted that for those of ordinary skill in the art, without departing from the technical principle of the present utility model, several improvements and replacements can still be made, and these improvements and replacements should also be regarded as the protection scope of the present utility model.

Claims

1. A siphon toilet, comprising a flushing channel (2) and a toilet body (3), wherein a seat pool (32) is provided in the toilet body (3); the flushing channel (2) comprises a water inlet section (28) and a flushing section (29), one end of the water inlet section (28) is provided with a water inlet (21), the water inlet (21) is located at the rear side of the toilet body (3), the other end of the water inlet section (28) is connected to one end of the flushing section (29), characterized in that: The bottom of the water inlet section (28) is protruded upward to form a water retaining weir (23), and the water retaining weir (23) divides the flushing channel (2) into an upper cavity (24) located above the water retaining weir (23), and a water storage cavity (25) and a drainage cavity (26) located on both sides of the water retaining weir (23), respectively; the water storage cavity (25) is located on a side close to the water inlet (21) and is connected to the water inlet (21), and the water storage cavity (25) and the drainage cavity (26) are connected through the upper cavity (24).

2. The siphon toilet according to claim 1, characterized in that: The size of the top of the water retaining weir (23) in the front-to-back direction is B mm, and the minimum distance between the top of the water retaining weir (23) and the inner top wall of the flushing channel (2) is A mm, wherein A / B=0.67-2.

5.

3. The siphon toilet according to claim 1, characterized in that: The flushing channel (2) and the toilet body (3) are an integrated structure.

4. The siphon toilet according to claim 1, characterized in that: It also comprises a downpipe (1), the lower end of which is in communication with the water inlet (21).

5. The siphon toilet according to claim 4, characterized in that: A cavity (11) is provided below the downpipe (1) and is horizontally connected to the water storage cavity (25).

6. The siphon toilet according to claim 5, characterized in that: The bottom of the cavity (11) is connected to the bottom of the water storage cavity (25).

7. The siphon toilet as claimed in claim 1, characterized in that: An injection port (22) is provided at one end of the flushing section (29) away from the water inlet section (28), and the injection port (22) is connected to the drainage cavity (26) and the seat pool (32).

8. The siphon toilet as claimed in claim 1, characterized in that: A wash ring flow channel (31) and a pressure chamber (33) are also formed in the toilet body (3); The wash ring flow channel (31) comprises a wash ring inlet (312), a wash ring outlet (313) and a channel (311) connecting the wash ring inlet (312) and the wash ring outlet (313); the wash ring inlet (312) is in communication with the upper chamber (24), and the wash ring outlet (313) is in communication with the seat pool (32); the pressure chamber (33) is in communication with the channel (311) at the wash ring outlet (313) in a vertical direction, and the wash ring outlet (313) is located below the cavity opening of the pressure chamber (33), the channel (311) and the wash ring inlet (312).

9. The siphon toilet according to claim 8, characterized in that: The pressure chamber (33) and the channel (311) are formed at the upper end of the toilet body (3), and the top of the pressure chamber (33) and the top of the channel (311) are located at the same horizontal height, and the pressure chamber (33) extends toward the front end of the toilet body (3).

10. The siphon toilet according to claim 4, characterized in that: It also comprises a water tank (4), which is arranged above the toilet body (3), and the upper end of the downpipe (1) is connected to the water tank (4).

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