Anti-clogging overflow toilet device
By installing an overflow pipe inside the toilet, the problem of sewage overflow caused by siphon pipe blockage is solved, achieving anti-clogging and overflow function and protecting the cleanliness of the toilet and bathroom.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- 广东欧诺卫浴科技有限公司
- Filing Date
- 2025-06-09
- Publication Date
- 2026-06-19
Smart Images

Figure CN224379039U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of toilet technology, and in particular to a toilet device for preventing blockage and overflow. Background Technology
[0002] Toilets are a common sanitary fixture used daily. To improve their flushing capacity, toilets are equipped with a siphon pipe. However, due to the curvature of this pipe, if users accidentally drop items into it, it can easily cause blockage. A blockage cannot be easily cleared by flushing, leading to increased water accumulation in the toilet bowl. Continuous flushing can cause the water mixed with waste to overflow from the top of the bowl. If the blockage is not cleared promptly, sewage will continue to overflow, contaminating the entire toilet and potentially the entire bathroom, as well as other items within it.
[0003] Therefore, it is essential to install a water overflow prevention structure inside the toilet bowl to promptly drain excess water stored inside the bowl in case of blockage, preventing continuous sewage overflow, thus protecting the toilet bowl and preventing contamination of other items. Summary of the Invention
[0004] The main purpose of this invention is to propose a compact and efficient anti-clogging overflow toilet device, which aims to prevent excessive water from overflowing when the toilet is clogged.
[0005] To achieve the above objectives, this utility model proposes an anti-clogging overflow toilet device, comprising a toilet body, a flush tank connected to the rear of the toilet body, and a urinal located at the front of the toilet body. A sewage pipe is provided at the bottom of the urinal and connected to a sewage outlet on the ground. An overflow pipe is provided inside the toilet body. The inlet end of the overflow pipe is located on the inner surface of the urinal. The main body of the overflow pipe passes through the side wall of the urinal and the lower structure of the toilet body in sequence. The outlet end of the overflow pipe is connected to a sewage outlet on the ground.
[0006] Preferably, the inlet end of the overflow pipe is set at the height between the water seal surface at the bottom of the toilet bowl and the flush outlet when the toilet is in normal use.
[0007] Preferably, the overflow pipe is an integral pipe structure, which includes a first curved pipe located at the rear of the toilet body, a second curved pipe inside the toilet bowl wall panel, a third curved pipe located at the bottom of the toilet body, and a fourth curved pipe connected to the ground drain outlet.
[0008] Preferably, the third curved pipe and the fourth curved pipe form a water seal structure.
[0009] Preferably, the flushing tank is provided with a first flushing pipe, which is connected to a second flushing pipe located at the top of the toilet bowl. The second flushing pipe is provided with a toilet bowl flushing outlet at least at the rear of the toilet bowl, which is located above the inlet end of the overflow pipe.
[0010] Preferably, the first curved pipe is connected to the overflow pipe via a third flushing pipe.
[0011] Preferably, the outlet end of the fourth curved pipe is arranged side by side with the outlet end of the pipe.
[0012] Preferably, the outlet end of the fourth curved pipe passes through the sewage pipe wall panel and extends into the sewage pipe.
[0013] Preferably, the toilet body has a positioning protrusion at the bottom, and the outlet end of the sewage pipe and the outlet end of the fourth curved pipe are both located at the bottom of the positioning protrusion.
[0014] The technical solution of this utility model has the following advantages over the prior art:
[0015] This utility model presents an anti-clogging overflow toilet device. The toilet body has a flush tank connected to the rear and a bowl located at the front. A drain pipe at the bottom of the bowl connects to a floor drain. An overflow pipe is located inside the toilet body, with its inlet on the inner surface of the bowl. The overflow pipe passes through the side wall of the bowl and the lower structure of the toilet body, and its outlet connects to the floor drain. In actual use, if the drain pipe becomes clogged, the overflow pipe will promptly drain excess water as the water level in the bowl increases, preventing sewage from overflowing from the top of the bowl. Attached Figure Description
[0016] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on the structures shown in these drawings without creative effort.
[0017] Figure 1 This is a schematic diagram of the internal structure of the anti-clogging overflow toilet device of this utility model;
[0018] Figure 2 This is a top view of the toilet bowl structure of this utility model;
[0019] Figure 3 This is a schematic diagram of the bottom structure of the toilet body of this utility model.
[0020] Explanation of icon numbers:
[0021] 1. Toilet body; 11. Positioning protrusion; 2. Flushing tank; 21. First flush pipe; 22. Second flush pipe; 23. Third flush pipe; 3. Toilet bowl; 31. Sewage pipe; 311. Sewage pipe outlet; 32. Toilet bowl flush outlet; 4. Ground drain outlet; 5. Overflow pipe; 51. Inlet end; 52. Outlet end; 53. First bend pipe; 54. Second bend pipe; 55. Third bend pipe; 56. Fourth bend pipe; 6. Blocking material; 7. Adhesive strip;
[0022] The realization of the purpose, functional features and advantages of this utility model will be further explained in conjunction with the embodiments and with reference to the accompanying drawings. Detailed Implementation
[0023] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.
[0024] This utility model proposes a toilet device to prevent clogging and overflow.
[0025] Please see Figure 1-3 The anti-clogging overflow toilet device of this utility model embodiment includes a toilet body 1, a flush tank 2 connected to the rear of the toilet body 1, and a toilet bowl 3 provided at the front of the toilet body 1. The toilet bowl 3 has an open top structure to accommodate user excrement. A sewage pipe 31 is provided at the bottom of the toilet bowl 3 and is connected to a ground drain outlet 4. Therefore, when the user starts the flushing process, the flushing water can pass through the sewage pipe 31 to discharge the user's excrement. In addition, the toilet body 1 of this utility model also has an overflow pipe 5 inside. The inlet end 51 of the overflow pipe 5 is located on the inner surface of the toilet bowl 3. The main body of the overflow pipe 5 passes through the side wall of the toilet bowl 3 and the lower structure of the toilet body 1 in sequence, and the outlet end 52 of the overflow pipe 5 is connected to the ground drain outlet 4.
[0026] Since the sewage pipe 31 is usually a curved pipe, if the user mistakenly throws easily clogged items 6 (such as socks, towels, etc.) into the toilet bowl 3 and these items become stuck inside the sewage pipe 31, the sewage pipe 31 will not be able to drain properly. When the sewage pipe 31 cannot drain properly, some users may mistakenly choose to flush again. After flushing several times, because the sewage pipe 31 cannot drain properly, the sewage inside the toilet bowl will increase, and the sewage may even overflow from the top of the toilet bowl 3. This utility model provides an overflow pipe 5 on the inner surface of the toilet bowl 3. When the water level inside the toilet bowl 3 gradually increases and the sewage level exceeds the inlet end 51 of the overflow pipe 5, the excess sewage can flow into the overflow pipe 5 through the inlet end 51 and then be discharged into the ground drain outlet 4 through the outlet end 52 of the overflow pipe 5. This can prevent excessive accumulation of sewage. As long as the user does not flush too often, the sewage level will be effectively controlled below the inlet end 51 of the overflow pipe 5, thus giving the user more time to effectively unclog the sewage pipe.
[0027] Preferably, the inlet end 51 of the overflow pipe 5 of this invention is positioned at the height between the water surface at the bottom of the toilet bowl 3 and the flush outlet 32 when the toilet is in normal use. More preferably, the inlet end 51 of the overflow pipe 5 is positioned below the flush outlet 32. Since the sewage pipe 31 will discharge sewage and water normally when there is no blockage inside, the inlet end 51 of the overflow pipe 5 should not be set too low, for example, below the water surface at the bottom of the toilet bowl 3, as this would affect the normal water storage and water seal function of the toilet bowl. The inlet end 51 of the overflow pipe 5 of this invention is positioned more reasonably, which will not affect the normal water seal of the toilet bowl 3, and can also discharge excess water in time when the sewage pipe 31 is blocked, avoiding sewage overflow.
[0028] Preferably, the overflow pipe 5 is an integral pipe structure, including a first curved pipe 53 located at the rear of the toilet body 1, a second curved pipe 54 located inside the wall panel of the toilet bowl 3, a third curved pipe 55 located at the bottom of the toilet body 1, and a fourth curved pipe 56 connected to the ground drain outlet 4. The first curved pipe 53 can be curved according to the structure of the rear of the toilet body 1, while the second curved pipe 54 is curved according to the internal structure of the wall panel of the toilet bowl 3, and the third curved pipe 55 is adapted to the bottom of the toilet body 1. The third curved pipe 55 and the fourth curved pipe 56 form a water seal structure, so that the overflow pipe 5 as a whole can also have an odor-proof effect, preventing odorous gases inside the ground drain outlet 4 from overflowing outwards.
[0029] More preferably, the overflow pipe 5 can be set inside the corresponding mold during the overall slurry pouring process of the toilet, or the corresponding pipe can be opened by the operator after the overall slurry pouring of the toilet is completed.
[0030] Alternatively, the overflow pipe 5 of this utility model can be made of metal or plastic material, and can be bent into corresponding curved pipes and then fixedly connected by bonding, welding or other methods to form an integral structure.
[0031] Furthermore, the flush tank 2 of this invention is provided with a first flushing pipe 21, which is connected to a second flushing pipe 22 located at the top of the toilet bowl 3. The second flushing pipe 22 has a toilet flushing outlet 32 at least at the rear of the toilet bowl 2, located above the inlet end 52 of the overflow pipe 5. Therefore, in the actual flushing process, the water inside the flush tank 2 first enters the first flushing pipe 21 and then enters the second flushing pipe 22. Several toilet flushing outlets 32 located at the top of the toilet bowl 3 can be arranged along the upper structure of the toilet bowl 3, for example, in a circumferential arrangement, to flush the inner surface of the toilet bowl 3. It should be particularly noted that at least one toilet flushing outlet 32 is provided at the rear top of the toilet bowl 3 to flush the surface of at least one inlet end 51 of the overflow pipe 5 located on the inner surface of the toilet bowl 3, preventing blockage of the inlet end 51 of the overflow pipe 5.
[0032] More preferably, the first curved pipe 53 is connected to the first flushing pipe 21 through the third flushing pipe 23. Therefore, during the actual flushing process, the water entering the first flushing pipe 21 will not only enter the second flushing pipe 22 for flushing, but also enter the overflow pipe 5 through the third flushing pipe 23. Thus, each flushing process can clean the inside of the overflow pipe 5, effectively improving its self-cleaning performance.
[0033] Please see Figure 3 In one embodiment of the present invention, the outlet end 52 of the fourth curved pipe 56 is arranged side by side with the outlet end 311 of the sewage pipe, or in another embodiment of the present invention, the outlet end 52 of the fourth curved pipe 56 passes through the wall panel of the sewage pipe 31 and extends into the interior of the sewage pipe 31, both of which can ensure the normal sewage discharge performance of the overflow pipe 5.
[0034] Preferably, the toilet body 1 has a positioning protrusion 11 at the bottom, and the outlet end 311 of the sewage pipe and the outlet end 52 of the fourth curved pipe 56 are both located inside the positioning protrusion 11, which makes the structure of the two outlet ends more compact. When installing the toilet as a whole, it is only necessary to put the adhesive strip 7 used for connection directly on the outer periphery of the positioning protrusion 11, so that the outlet end 311 of the sewage pipe and the outlet end 52 of the fourth curved pipe 56 can be sealed at the same time, and the installation process is more convenient for users.
[0035] The above description is only a preferred embodiment of the present utility model and does not limit the patent scope of the present utility model. All equivalent structural transformations made under the concept of the present utility model and using the contents of the present utility model specification and drawings, or direct / indirect applications in other related technical fields, are included in the patent protection scope of the present utility model.
Claims
1. A toilet device for preventing blockage and overflow, characterized in that, It includes a toilet body, a flush tank connected to the rear of the toilet body, and a urinal located at the front of the toilet body. A sewage pipe is provided at the bottom of the urinal and connected to a sewage outlet on the ground. An overflow pipe is provided inside the toilet body. The inlet end of the overflow pipe is located on the inner surface of the urinal. The main body of the overflow pipe passes through the side wall of the urinal and the lower structure of the toilet body in sequence. The outlet end of the overflow pipe is connected to a sewage outlet on the ground.
2. The anti-clogging overflow toilet device as described in claim 1, characterized in that, The inlet of the overflow pipe is set at the height between the water seal surface at the bottom of the toilet bowl and the flush outlet when the toilet is in normal use.
3. The anti-clogging overflow toilet device as described in claim 1, characterized in that, The overflow pipe is an integral pipe structure, including a first curved pipe located at the rear of the toilet body, a second curved pipe inside the toilet bowl wall panel, a third curved pipe located at the bottom of the toilet body, and a fourth curved pipe connected to the ground drain outlet.
4. The anti-clogging overflow toilet device as described in claim 3, characterized in that, The third and fourth curved pipes form a water seal structure.
5. The anti-clogging overflow toilet device as described in claim 3, characterized in that, The flushing tank is provided with a first flushing pipe, which is connected to a second flushing pipe located at the top of the toilet bowl. The second flushing pipe is provided with a toilet bowl flushing outlet at least at the rear of the toilet bowl, which is located above the inlet end of the overflow pipe.
6. The anti-clogging overflow toilet device as described in claim 5, characterized in that, The first curved pipe is connected to the overflow pipe via a third flushing pipe.
7. The anti-clogging overflow toilet device as described in claim 3, characterized in that, The outlet end of the fourth curved pipe is arranged side by side with the outlet end of the pipe.
8. The anti-clogging overflow toilet device as described in claim 3, characterized in that, The outlet end of the fourth curved pipe passes through the sewage pipe wall panel and extends into the sewage pipe.
9. The anti-clogging overflow toilet device as described in claim 7 or 8, characterized in that, The toilet body has a positioning protrusion at the bottom, and the outlet end of the sewage pipe and the outlet end of the fourth curved pipe are both located at the bottom of the positioning protrusion.