Cascade flush siphonic toilet

Abstract

The utility model belongs to the technical field of toilet bowl, specifically relates to a cascade flush siphon toilet bowl, including base, be provided with the pot body on the base, and the pot body is composed of the seat ring and the closet bowl, the hat head is provided with the injection hole at the front side of the hat head, and the hat head rear end is connected to the sewage elbow, the inside of seat ring is equipped with the ring water channel, and the ring water channel is communicated with the closet bowl, and the rear part of closet bowl is equipped with the secondary water channel, and the secondary water channel is communicated with the injection hole, and the water outlet structure of ring water channel is arranged in the inside of pot body front end, the present application designs the pot body front end inside in the flush water position, makes more water flush the dirt that is more difficult to take away, makes the pot body flush cleaner, the present scheme designs the water outlet structure to have the pot body front end, is in the visual blind area of user, makes the structure line of toilet bowl visible more simple, more beautiful, and the water replenishing cavity replaces the water tank accessory and carries out the water replenishing of toilet bowl.

Description

Technical Field

[0001] This utility model belongs to the field of toilet technology, specifically relating to a waterfall-type flushing siphon toilet. Background Technology

[0002] Toilets are now widely used. Siphon toilets have a strong suction force for waste and can instantly extract and discharge sewage. They are widely used among urban residents. Currently, in the design of toilets, how to reduce the amount of dirt stuck to the toilet surface and how to improve the flushing effect are the main themes.

[0003] See Chinese utility model patent CN201510289213.5, filed on May 30, 2015. This solution provides a toilet with a secondary water channel. The main water channel is the main water flow for flushing into the pot, while the secondary water channel directly flushes water to the bottom of the pot, providing a boost to the siphon and increasing the flushing power of the toilet on waste, allowing waste to enter the bend pipe more quickly and be discharged through the bend pipe more rapidly.

[0004] See Chinese utility model patent CN202222306127.9, filed on August 30, 2022. This patent addresses the problem of traditional toilets not flushing cleanly by replacing the traditional perforated flushing system with a water channel structure, resulting in a more even distribution of water across the toilet bowl. In this design, flushing water enters the toilet bowl through the main water channel, and then is divided by a water distribution plate at the rear of the bowl into a downward flushing stream that directly enters the bottom of the bowl, and two side streams that flow to the water channel.

[0005] When using a toilet, feces sometimes fall directly into the water seal, and sometimes fall onto the surface of the pot and then slide into the water seal due to the slope of the pot. The front of the pot is heavily soiled, and the back of the pot is easily splashed with sewage due to feces falling into it, making it an area that needs to be rinsed more thoroughly. Based on the aforementioned prior patent solutions, the existing technology has the following defects: 1) The rinsing water flows out from the rear of the pot, and a lot of water directly reaches the bottom, while the water guided to the front and sides through the water guide channel is insufficient, which cannot completely rinse the solid residue in the front; 2) The cavities of the main water channel and the auxiliary water channel are large. Water is poured into the main water channel all at once and flows to the bottom of the pot quickly. However, during siphoning, water is extracted all at once, forming a vacuum section after the transition pipe. On the one hand, this causes a lot of noise, and on the other hand, sewage will flow back after the siphoning ends, resulting in dirt residue inside the pot. Utility Model Content

[0006] The technical problems to be solved by this utility model are the problems of incomplete flushing and thorough sewage discharge in toilets.

[0007] The technical solution adopted by this utility model to solve the aforementioned problem is: A waterfall-style flushing siphon toilet includes a base, on which a pot is mounted. The pot consists of a seat ring and a toilet bowl. A cap is located at the lower end of the toilet bowl, with a jet nozzle on the front side of the cap and a drain pipe connected to the rear end of the cap. A ring water channel is located inside the seat ring, communicating with the inside of the toilet bowl. A secondary water channel is located at the rear of the toilet bowl, communicating with the jet nozzle. The water outlet structure of the ring water channel is located on the inner side of the front end of the pot.

[0008] Compared with the prior art, the advantages of this utility model with the above structure are: This invention designs the flushing water outlet to be located on the inner front side of the pot body, allowing more water to flush the front of the pot body more thoroughly, removing solid and difficult-to-remove dirt adhering to the pot body surface. A small portion of the water, under water pressure, is flushed to the rear of the pot body, carrying away easily removed liquid dirt, resulting in a cleaner pot body. This design places the water outlet structure at the front of the pot body, in a blind spot for the user, making the visible structural lines of the toilet bowl simpler and more aesthetically pleasing.

[0009] As a preferred option, a further technical solution to the above structure is: The toilet bowl has a water-filling cavity inside its wall, which is connected to the auxiliary water channel.

[0010] The beneficial effects of this feature are as follows: after the water in the secondary water channel is poured into the drain bend, the water in the water replenishment cavity flows back to the secondary water channel and then flows out from the spray hole, avoiding the empty suction of the secondary water channel, making the siphon last for a longer time, and preventing the backflow of water containing dirt.

[0011] The water replenishment cavity extends from the secondary water channel to the front end of the toilet bowl; the beneficial effect of this feature is that the water replenishment volume is large and the water replenishment cavity has a long flow path, thereby ensuring that after the water from the secondary water channel flows into the drain bend, the drain bend continues to be replenished with water.

[0012] The upper end of the water replenishment cavity is connected to the water channel; the beneficial effect obtained by this feature is that the water replenishment cavity fills with water quickly.

[0013] The inner wall surface of the toilet bowl, at the height of the water outlet structure, is provided with a horizontally extending guide channel to the rear end; the beneficial effect of this feature is that the guide channel is used to guide the water from the side flushing holes to the rear end of the toilet bowl, resulting in a more even flushing of the toilet bowl.

[0014] At the rear end of the toilet bowl, a buffer groove is provided on the upper side of the flow channel; the beneficial effect of this feature is that the buffer groove is used to buffer the water flow and accumulate more water, so that the fecal water can flush the rear side wall of the toilet bowl downwards.

[0015] A baffle plate protruding towards the center of the seat ring is provided on the inner side of the upper edge of the seat ring. The baffle plate extends forward from the rear end of the seat ring along the direction of the guide groove.

[0016] The beneficial effects obtained from the above features are: on the one hand, the baffle plate avoids the impact of water when the water from both sides converges at the rear of the pot body, which causes sewage to splash; on the other hand, it avoids water droplets splashing upwards when the water flows at high speed along the guide channel. Attached Figure Description

[0017] Figure 1 This is a schematic diagram of the overall structure of the toilet of this utility model; Figure 2 yes Figure 1 Cross-sectional view of Nakamoto toilet AA; Figure 3 This is an enlarged view of the water outlet structure at the front of the toilet of this utility model; Figure 4 This is an enlarged view of the structure of the water baffle and buffer groove at the rear end of the toilet of this utility model; Figure 5 refer to Figure 2 BB cross-sectional structural diagram of the toilet of this utility model; Figure 6 refer to Figure 2 The CC cross-sectional structural diagram of the toilet of this utility model; Figure 7 refer to Figure 2 DD cross-sectional structural diagram of the toilet of this utility model; Figure 8 This is a schematic diagram of the water flow direction inside the toilet of this utility model.

[0018] Explanation of reference numerals in the attached diagram: 1. Seat ring; 2. Toilet bowl; 3. Flow channel; 4. Jet nozzle; 5. Water outlet structure; 501. Bottom flush hole; 502. Side flush hole; 6. Water baffle; 7. Buffer groove; 8. Main water channel; 9. Sewage drain bend; 10. Secondary water channel; 11. Cap head; 12. Base; 13. Ring water channel; 14. Water supply cavity; 15. Water baffle. Detailed Implementation

[0019] 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.

[0020] See Figures 1 to 8 The waterfall-style flushing siphon toilet provided by this utility model includes a base 12, on which a pot body is provided. The pot body is composed of a seat ring 1 and a toilet bowl 2. A cap head 11 is provided at the lower end of the toilet bowl 2. A spray hole 4 is provided on the front side of the cap head 11. The rear end of the cap head 11 is connected to a drain pipe 9. A ring water channel 13 is provided inside the seat ring 1, which is connected to the inside of the toilet bowl 2. A secondary water channel 10 is provided at the rear of the toilet bowl 2, which is connected to the spray hole 4. The water outlet structure 5 of the ring water channel 13 is provided on the inner side of the front end of the pot body.

[0021] This design takes into account that the middle and rear parts of the toilet bowl are prone to dirt accumulation during use. Specifically, the middle part of the toilet bowl mainly contains adhered solid waste, which is more difficult to flush, while the rear part mainly contains wastewater droplets splashed onto the sidewalls after waste enters the bowl, which is relatively easier to flush. This invention addresses this issue by designing a front-end flushing structure. This design uses more water to flush the middle part of the toilet bowl than the rear part, allowing more water to be used to clean the difficult-to-clean areas, while using relatively less water to clean the easier areas, thereby improving the flushing effect.

[0022] As a further design feature: a water replenishment cavity 14 is provided inside the wall of the toilet bowl 2, and the water replenishment cavity 14 is connected to the auxiliary water channel 10. Optionally, the water replenishment cavity 14 is arranged around the perimeter of the toilet bowl 2, or the range extending from the rear end to the front end of the bowl body is the same as that of the guide channel 3. Optionally, the upper end of the water replenishment cavity 14 may or may not be connected to the ring water channel 13, depending on whether a water baffle 15 is provided on the lower side of the ring water channel 13; if the water replenishment cavity 14 is connected to the ring water channel 13, when the toilet is flushed, water can enter the water replenishment cavity 14 through both the ring water channel 13 and the auxiliary water channel 10. Optionally, the lower end of the water replenishment cavity 14 is located above or below the water seal line.

[0023] The flushing process of a standard toilet: The main waterway 8 flows to the ring waterway 13 and the secondary waterway 10 respectively. The water diverted to the ring waterway 13 flows into the toilet bowl 2 to flush away the waste. When the water in the toilet bowl 2 reaches a certain height, a siphon is triggered. The water diverted to the secondary waterway 10 flows directly to the jet hole 4, which propels the waste and water and promotes the siphon in advance. The water in the toilet bowl 2 and the secondary waterway 10 is poured into the drain pipe 9 in one go under the siphon effect. When the water level in the tank is low, water is replenished through the accessory control. The accessory releases a certain amount of water to replenish the toilet bowl, so that all the sewage is sent into the drain pipe 9, leaving only clean water in the toilet bowl 2.

[0024] The flushing features of this new toilet design are as follows: Since the secondary water channel 10 is connected to the water replenishment cavity 14, the water diverted to the secondary water channel 10 simultaneously enters the water replenishment cavity 14. The water in the water replenishment cavity 14 has a long flow path to the drain bend 9. After the water in the secondary water channel 10 and the toilet bowl 2 is siphoned away, the water in the water replenishment cavity 14 flows back and then flows out through the spray hole 4, forming a water replenishment effect. Therefore, the toilet of this utility model does not require accessories to control the replenishment of water to the bottom of the pot.

[0025] Optionally, the upper end of the water outlet structure 5 is connected to the seat ring 1; the lower, left, and right sides of the water outlet structure 5 are all curved backward and integrated with the surface of the toilet bowl 2; the lower side of the water outlet structure 5 is provided with a lower flushing hole 501, and the left and right sides are provided with side flushing holes 502. This design allows the water to flush the pot body more evenly.

[0026] Furthermore, the bottom flush hole 501 and the side flush hole 502 are gaps between the water outlet structure 5 and the toilet bowl 2, or through holes on the folded surface of the water outlet structure 5. The flushing water washes along the pot wall, making it easy to adjust the ratio of direct and side flow water according to the pot shape by changing the size of the holes.

[0027] As a preferred option, the inner wall surface of the toilet bowl 2 is provided with a horizontally extending guide groove 3 corresponding to the height of the side flush hole 502. The guide groove 3 is used to guide the water sprayed from the side flush hole 502 to the rear end of the toilet bowl 2 to ensure thorough flushing.

[0028] As a preferred design, the guide channel 3 is narrower at the rear end of the pot body, wider on both sides, and disappears at the front end. This guide channel 3 structure allows for rapid downward rinsing of the water flow to the rear end, and the convergence of water flows on both sides enhances the water volume, ensuring effective rinsing at the rear end.

[0029] As a better option, a buffer groove 7 is provided on the upper side of the guide channel 3 at the rear end of the toilet bowl 2. The buffer groove 7 serves to buffer and temporarily store flushing water, allowing more water to flush downwards at once.

[0030] A baffle plate 6 protruding towards the center of the seat ring 1 is provided on the inner side of the upper edge of the seat ring 1. The baffle plate 6 extends forward from the rear end of the seat ring 1 along the direction of the guide groove 3. The baffle plate 6 at the rear end of the pot body prevents water droplets from splashing upward when the water flow on both sides converges at the rear end, and avoids the generation of sewage splashing upward when the water flow flows at high speed along the guide groove 3, thus avoiding contamination of the outside of the toilet.

[0031] When the toilet is in use, water flows into the main water channel 8, and then splits into two streams, flowing into the retaining channel 13 and the secondary water channel 10 respectively. The water in the retaining channel 13 flows into the toilet bowl 2. Generally, when the water in the toilet bowl 2 reaches the siphon point, the water in the drain bend 9 reaches the apex of the bend, and a siphon occurs. The water in the secondary water channel 10 has a pushing effect on the waste and the water in the drain cap 11, which can directly push the water in the drain bend 9 to flow backward. Therefore, the drain bend 9 can siphon earlier.

[0032] This design incorporates three water flows. The third flow is an additional water flow from the replenishment cavity, which is added to the existing water flow in the main water channel and the secondary water channel. Water is diverted twice from the secondary water channel 10 at the rear of the toilet to the replenishment cavity 14. The water flows from the rear of the replenishment cavity 14 to the front. The further back the water is from the front of the toilet bowl, the greater the distance from the drain bend 9. When all the water in the secondary water channel 10 flows out of the jet hole 4, the water in the replenishment cavity 14 flows back to the secondary water channel 10 under gravity and then flows out of the jet hole 4.

[0033] When the water replenishment cavity 14 and the ring water channel 13 are connected at the same time, water can enter the water replenishment cavity 14 from both the ring water channel 13 and the auxiliary water channel 10, and it also flows from the rear end to the front because: ① the cross-section of the water replenishment cavity 14 is small; ② the potential energy of the water in the water replenishment cavity 14 decreases as it approaches the front end; ③ the position of the water outlet structure 5 is higher than that of the water replenishment cavity 14, so only a small portion of the water can flow out of the water outlet structure 5 together with the water flow from the ring water channel 13.

[0034] The beneficial effects of this utility model are: 1) Easy to clean: The toilet features a waterfall-style flush at the front, with the water outlet positioned away from areas where dirt can easily accumulate. The simple and smooth lines at the back of the toilet avoid cleaning dead spots, making it easier to clean. The funnel-shaped bowl is also easy to scrub.

[0035] 2) Good visual effect: The water outlet structure is located at the front of the toilet and designed under the toilet seat, which is not easily noticed by the user. The visible rear structure of the toilet has simpler lines and a better visual effect.

[0036] 3) Thorough drainage: This utility model designs the water outlet of the rinsing water to be inside the front of the pot body, so that more water can be used to rinse the front of the pot body, which can more thoroughly remove solid dirt that is difficult to remove from the surface of the pot body, while less water is used to rinse the back of the pot body, removing liquid dirt that is easily removed, making the pot body cleaner. The water replenishment cavity replenishes water to the spray hole, pushing all the contaminated water out of the drain bend, so that there is no sewage residue in the water seal.

[0037] 4) The pot body structure of this utility model realizes water replenishment by itself, without the need for water replenishment accessories to control water replenishment. Therefore, the water replenishment accessories are only responsible for replenishing the water tank, simplifying the accessory structure and avoiding damage.

[0038] 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 waterfall-type flushing siphon toilet, comprising a base (12), a pot body mounted on the base (12), the pot body being composed of a seat ring (1) and a toilet bowl (2); a cap head (11) is provided at the lower end of the toilet bowl (2), a spray hole (4) is provided on the front side of the cap head (11), and a drain pipe (9) is connected to the rear end of the cap head (11); a ring water channel (13) is provided inside the seat ring (1), the ring water channel (13) communicating with the inside of the toilet bowl (2), and a secondary water channel (10) is provided at the rear of the toilet bowl (2), the secondary water channel (10) communicating with the spray hole (4), characterized in that, The water outlet structure (5) of the ring water channel (13) is set on the inner side of the front end of the pot body.

2. The waterfall-type flushing siphon toilet according to claim 1, characterized in that, The toilet bowl (2) has a water replenishment cavity (14) inside its wall, which is connected to the auxiliary water channel (10).

3. The waterfall-type flushing siphon toilet according to claim 2, characterized in that, The water replenishment cavity (14) extends from the secondary water channel (10) to the front end of the toilet bowl (2).

4. The waterfall-type flushing siphon toilet according to claim 2, characterized in that, The upper end of the water replenishment cavity (14) is connected to the water channel (13).

5. The waterfall-type flushing siphon toilet according to claim 1, characterized in that, The inner wall surface of the toilet bowl (2) and the height of the water outlet structure (5) are provided with a horizontally extending guide channel (3) extending to the rear end.

6. The waterfall-type flushing siphon toilet according to claim 5, characterized in that, At the rear end of the toilet bowl (2), a buffer groove (7) is provided on the upper side of the flow channel (3).

7. The waterfall-type flushing siphon toilet according to claim 5, characterized in that, The guide channel (3) is narrower at the rear end of the pot body, wider at the sides of the pot body, and disappears at the front end of the pot body.

8. The waterfall-type flushing siphon toilet according to claim 5, characterized in that, A baffle plate (6) protruding toward the center of the seat ring (1) is provided on the inner side of the upper edge of the seat ring (1). The baffle plate (6) extends forward from the rear end of the seat ring (1) along the direction of the guide groove (3).

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