Anti-overflow urinal

By arranging an overflow portion and a blocking device in the urinal, the problem of sewage overflow caused by sewer blockage is solved, and the effect of automatically unclogging the sewer and keeping the toilet clean is achieved.

CN223446292UActive Publication Date: 2025-10-17HUIDA SANITARY WARE
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Patent Information

Application Number
CN202423032779.3
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2024-12-09
Publication Date
2025-10-17
Estimated Expiration
2034-12-09

AI Technical Summary

Technical Problem

The drains of urinals in public places and home bathrooms are easily clogged, causing urine and other sewage to overflow, affecting bathroom hygiene and potentially causing environmental pollution.

Method used

A water-overflow-proof urinal is designed, which includes an overflow part and a blocking device. When the drain is blocked, the accumulated water is discharged through the overflow part and the drain is backwashed with clean water, and the flushing hole is blocked to unclog the drain.

Benefits of technology

It effectively prevents sewage from overflowing, automatically unclogs drains, keeps the bathroom clean, prevents odors from spreading, and improves the aesthetics of the urinal.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model relates to an anti-overflow urinal. The anti-overflow urinal comprises a urinal body, an overflow part and a plugging device, the urinal body is provided with a water inlet part, the inner wall of the urinal body is provided with scrubbing holes, the bottom of the urinal is provided with a sewage discharge part, the sewage discharge part comprises a water outlet, a second trap and a sewage discharge port which are communicated in sequence, and the sewage discharge port is communicated with a sewer; the overflow part comprises an overflow hole, a first trap, a water inlet channel and a drainage channel, the inner wall of the urinal is provided with the overflow hole lower than the highest water level of the urinal, the overflow hole is communicated with the first trap, one end of the water inlet channel is communicated with a clean water source through the water inlet part, and the other end of the water inlet channel, the first trap and the upper end of the drainage channel are sequentially communicated; the lower end of the drainage channel is communicated with the second trap; according to the utility model, when the water outlet of the urinal is blocked, sewage flows away from the overflow part and does not overflow to pollute the environment of a toilet, and when the water outlet is blocked, the blocking device can block the scrubbing hole, and the overflow part backflushes to dredge the water outlet.
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Description

TECHNICAL FIELD

[0001] The utility model relates to a urinal technical field, concretely relates to a urinal of preventing water overflow. BACKGROUND

[0002] With the development of society and the improvement of people's living standards, the public's health requirements for public health facilities are increasing. Especially in public places such as office buildings, schools, shopping malls, airports and stations, as one of the necessary facilities in the male toilet, the sanitary condition of the urinal directly affects the experience of the toilet and the overall environmental health.

[0003] As a bathroom facility used by men every day, the urinal plays a vital role in daily life. However, during use, the urinals in public places and family bathrooms, especially in public places, are often blocked by cigarette butts, paper scraps and other garbage at the drain outlet, causing urine and other sewage to overflow from the top of the water-blocking edge of the urinal, seriously affecting the hygiene of the bathroom and even causing environmental pollution. These problems not only affect the mood of the toilet, but also may pose a threat to health. SUMMARY

[0004] In view of the technical problems existing in the prior art, the purpose of the utility model is to provide a urinal that prevents water overflow. When the drain outlet is blocked, the accumulated water flows away from the overflow part without overflowing, and the sealing device can block the cleaning hole. The overflow part backflushes to unblock the drain outlet.

[0005] In order to achieve the above purpose, the utility model adopts the following technical scheme:

[0006] A urinal that prevents water overflow, comprising a urinal body and an overflow part; a urinal bowl is provided in the urinal body, a water inlet part is provided at the upper part of the urinal body, a cleaning hole is provided above the urinal bowl, and the cleaning hole is in communication with the water inlet part; a sewage discharge part is provided at the bottom of the urinal bowl, the sewage discharge part comprises a drain outlet, a second water trap and a sewage discharge outlet that are sequentially connected, the drain outlet is provided at the inner wall bottom of the urinal bowl, and the sewage discharge outlet is in communication with the sewer; the overflow part comprises an overflow hole, a first water trap, a water inlet channel and a water outlet channel, the overflow hole is provided on the inner wall of the urinal bowl, the overflow hole is in communication with the first water trap, the overflow hole is provided at the upper part of the first water trap, one end of the water inlet channel is in communication with a clean water source through the water inlet part, the other end of the water inlet channel is in communication with the upper end of the first water trap, and the lower end of the first water trap is in communication with the upper end of the water outlet channel; the lower end of the water outlet channel is in communication with the second water trap; the urinal further comprises a sealing device, when the drain outlet is blocked, the sealing device can block the cleaning hole during flushing, and the clean water source flows through the water inlet channel, the first water trap, the water outlet channel, the second water trap, backflushes and unblocks the drain outlet in sequence.

[0007] As a kind of preferred, first water trap, inlet channel, upper section of drain are all arranged at the back or side of urinal body, lower section of drain is arranged at the bottom of urinal body.

[0008] As a kind of preferred, the urinal further comprises a control system and a water level monitor, the water inlet part comprises a buffer water area and a water inlet, the water inlet is communicated with the buffer water area, the flushing hole is located at the bottom of the buffer water area, the buffer water area is communicated with the flushing hole, and the buffer water area is communicated with the water inlet channel;The control system is electrically connected with the water level monitor and the blocking device respectively;The water level monitor is arranged in the bowl, and the monitoring position of the water level monitor is not higher than the overflow hole;The blocking device is arranged in the buffer water area;When the water level monitor detects water accumulation, the control system controls the blocking device to block the flushing hole and controls the cleaning water source to enter the overflow part to flush the second water trap and dredge the drain outlet.

[0009] As a kind of preferred, the blocking device comprises a waterproof electric telescopic push rod and a blocking plate, the body of the electric telescopic push rod is fixedly installed on the bottom surface of the buffer water area, the push rod end of the electric telescopic push rod is fixedly connected with the blocking plate, and the blocking plate is blocked at the top end of the flushing hole when the push rod of the electric telescopic push rod is elongated.

[0010] As a kind of preferred, the urinal further comprises an infrared sensor, the control system is electrically connected with the infrared sensor, and the infrared sensor is installed on the upper part of the urinal body and faces the person using the toilet.

[0011] As a kind of preferred, the urinal further comprises a reminding device, the reminding device is electrically connected with the control system, and the control system controls the reminding device to give an audible prompt when the drain outlet is blocked for a long time.

[0012] As a kind of preferred, the cross section of the pipeline in the overflow part perpendicular to the water flow direction is semicircular.

[0013] As a kind of preferred, an isolation net cover is arranged at the drain outlet.

[0014] As a kind of preferred, the lower end of the drain of the overflow part is communicated with the side wall of the second water trap through a pipeline.

[0015] As a kind of preferred, the water outlet of the pipeline is located at the side wall of the second water trap, and the water outlet is close to the drain outlet.

[0016] As a kind of preferred, an overflow platform is arranged on the inner wall of the urinal body corresponding to the position of the overflow hole, the outer side of the overflow platform is a water-facing surface for guiding water to flow downward, and the overflow hole is arranged on the bottom surface of the overflow platform.

[0017] As a kind of preferred, the water flow channel in the overflow platform communicated with the overflow hole is inclined upward, and the water flow channel communicated with the overflow hole is communicated with the first water trap.

[0018] The utility model has the advantages of the following:

[0019] (1) the utility model discloses a overflow part is provided on the urinal body, when the sewer of urinal is blocked, the sewage in the urinal is filled, and the sewage can be discharged from the overflow hole of overflow part, preventing sewage from overflowing outside the urinal and polluting the bathroom environment; The drain of overflow part is communicated with the pollution discharge part, when the sewer is blocked, the flushing hole is blocked by the blocking device, and the clean water source only flows to the overflow part during flushing, and the water flow of the overflow part can backflush to dredge the sewer of the pollution discharge part.

[0020] (2) the urinal is provided with a water level monitor and a blocking device, when the sewer of the urinal is blocked, there is water accumulation in the urinal, when the water level monitor detects the water accumulation, a signal is transmitted to the control system, the control system controls the blocking device to block the flushing hole, and then controls the water inlet to start flushing again, the clean water source cannot enter the urinal from the flushing hole because the flushing hole is blocked, and the clean water source only enters the overflow part to backflush the pollution discharge part to dredge the sewer, realizing automatic dredging of the sewer.

[0021] (3) the pipe cross section size of the pipeline is smaller than the pipe cross section size of the drain, when the sewer is blocked and needs to be backflushed to dredge the sewer, the backflushing water needs a larger thrust, the pipeline communicated with the second water trap of the overflow part and the outlet hole have a smaller diameter, so that the backflushing water has a larger thrust, a larger water thrust pushes the garbage blocked in the sewer, and the backflushing water has a better effect.

[0022] (4) the first water trap is formed in the first water trap, which can prevent the sewer odor from entering the bathroom through the overflow hole.

[0023] (5) the overflow part of the utility model is provided with a first water trap, the first water trap is communicated with the water inlet, so that part of the clean water flows into the first water trap during flushing of the urinal, the water in the first water trap can be replaced, and the water in the first water trap can be prevented from emitting odor.

[0024] (6) the overflow hole is arranged on the bottom surface of the overflow platform, the overflow hole is hidden, the user cannot see the overflow hole, the appearance of the urinal is more clean and beautiful, and the urine is not easy to enter the overflow hole during defecation. BRIEF DESCRIPTION OF DRAWINGS

[0025] In order to more clearly illustrate the technical scheme in the embodiments of the utility model or the prior art, the following will briefly introduce the drawings needed to be used in the embodiment or the prior art description, and obviously, the drawings in the following description are only some embodiments of the utility model, and those skilled in the art can obtain other drawings according to these drawings without creating creative labor.

[0026] Figure 1 It is the structure diagram of the urinal of the utility model.

[0027] Figure 2 It is another angle structural schematic view of the urinal of the utility model.

[0028] Figure 3 It is a rear view of the urinal of the utility model.

[0029] Figure 4 It is a front view of the urinal of the utility model.

[0030] Figure 5 It is Figure 4 A-A sectional view.

[0031] Figure 6 It is Figure 5 The enlarged view of B.

[0032] Figure 7 It is structural schematic view when the sealing plate seals the washing hole.

[0033] Figure 8 It is another angle structural schematic view of the urinal.

[0034] Figure 9 It is position and structural schematic view between the internal water channel of the overflow part and the second water trap.

[0035] Figure 10 It is Figure 9 The enlarged schematic view of C.

[0036] Figure 11 It is structural schematic view of embodiment two.

[0037] Figure 12 It is structural schematic view of the overflow platform.

[0038] Wherein, 1, the urinal body;2, the overflow part;3, the overflow hole;4, the first water trap;5, the drainage channel;6, the water inlet channel;7, the toilet bowl;8, the overflow platform;9, the water inlet part;10, the washing hole;11, the sewage part;12, the sewer outlet;13, the second water trap;14, the sewage outlet;15, the water retaining edge;16, the buffer water area;17, the water inlet;18, the water level monitor;19, the sealing device;20, the electric telescopic push rod;21, the sealing plate;22, the infrared sensor;23, the reminding device;24, the pipeline;25, the water outlet. DETAILED DESCRIPTION

[0039] With reference to the drawings of the utility model, the technical scheme in the embodiments of the utility model will be clearly and completely described, obviously, the described embodiments are only a part of the embodiments of the utility model, rather than all the embodiments. Based on the embodiments of the utility model, all other embodiments obtained by the ordinary skilled in the art without making creative efforts belong to the protection scope of the utility model.

[0040] Embodiment one

[0041] As Figures 1-10 shown, an anti-overflow urinal, comprising a urinal body 1 and an overflow part 2, a urinal bowl 7 is arranged in the urinal body 1, a water inlet part 9 is arranged at the upper portion of the urinal body 1, a flushing hole 10 is arranged above the urinal bowl 7, and the flushing hole 10 is communicated with the water inlet part 9; a sewage discharge part 11 is arranged at the bottom of the urinal bowl 7, and the sewage discharge part 11 comprises a sewer inlet 12, a second water trap 13 and a sewage outlet 14 communicated in sequence, the sewer inlet 12 is arranged at the inner wall bottom of the urinal bowl 7, and the sewage outlet 14 is communicated with a sewer; the overflow part 2 comprises an overflow hole 3, a first water trap 4, a water inlet channel 6 and a water outlet channel 5, the overflow hole 3 is arranged on the inner wall of the urinal bowl 7, and the overflow hole 3 is arranged on the back and side of the inner wall of the urinal bowl 7, preferably, the number of the overflow hole 3 is three in the embodiment, the overflow hole 3 is lower than the highest water level of the urinal bowl 7, the overflow hole 3 is communicated with the first water trap 4, the overflow hole 3 is arranged at the upper portion of the first water trap 4, one end of the water inlet channel 6 is communicated with a clean water source through the water inlet part 9, and the other end of the water inlet channel 6 is communicated with the upper end of the first water trap 4, so that part of the clean water source can flow into the first water trap 4 when the urinal is flushed, the water in the first water trap 4 can be replaced, and the water in the first water trap 4 can be prevented from emitting odor; the lower end of the first water trap 4 is communicated with the upper end of the water outlet channel 5; the lower end of the water outlet channel 5 is communicated with the second water trap 13; a water seal can be formed in the first water trap 4, and the odor of the sewer can be prevented from entering the bathroom through the overflow hole 3. The urinal further comprises a plugging device 19, when the sewer inlet 12 is blocked, the plugging device 19 can plug the flushing hole 10 when the urinal is flushed, and the clean water source flows through the water inlet channel 6, the first water trap 4, the water outlet channel 5, the second water trap 13 in reverse and then clears the sewer inlet 12.

[0042] The overflow part 2 is arranged on the outer wall of the urinal body 1, and the overflow part 2 is arranged integrally with the urinal body 1. In other embodiments, the overflow part 2 can also be separately arranged on the back and side of the urinal body 1, and the arrangement mode of the overflow part 2 is various and flexible.

[0043] The first water trap 4 is a reverse S-shaped pipeline or a longitudinally symmetrical pipeline with a reverse S shape, which is beneficial to storing sufficient water in the first water trap 4 and stably forming a water seal. It should be noted that the "reverse S shape" means a shape similar to the S shape after being rotated by 90 degrees.

[0044] The cross-sectional size of the water flow passage of the one end of the water storage bend 4 connected to the water inlet channel 6 is relatively larger than that of the rear passage, and the water storage volume is relatively larger, which is beneficial to store more water and more effectively and stably form a water seal.

[0045] The first water storage bend 4, the water inlet channel 6, and the upper section of the water outlet channel 5 are arranged on the back or side of the urinal body 1, and the lower section of the water outlet channel 5 is arranged on the bottom of the urinal body 1. The upper section and the lower section of the water outlet channel 5 are connected by a turning passage, so that the water flow can smoothly change direction.

[0046] The pipe cross-sectional size of the lower part of the water outlet channel 5 of the overflow part 2 is smaller than that of the upper part, and the lower end of the water outlet channel 5 is in communication with the side wall of the first water storage bend 4.

[0047] The lower end of the water outlet channel 5 of the overflow part 2 is in communication with the side wall of the second water storage bend 13 through a pipe 24, and the pipe cross-sectional size of the pipe 24 is smaller than that of the water outlet channel 5. The water outlet 25 of the pipe 24 is located on the side wall of the second water storage bend 13, and the water outlet 25 is close to the sewer outlet 12. The urinal usually has a separation net cover at the sewer outlet 12, which prevents garbage from flowing into the sewer. When the sewer outlet 12 is blocked and needs to be flushed by backwashing, the backwashing water needs a larger pushing force, and the pipe 24 and the water outlet 25 of the overflow part 2 and the second water storage bend 13 have smaller diameters, so that the pushing force of the backwashing water is larger, and the garbage blocking the sewer outlet 12 is pushed by a larger water force, so that the backwashing effect is better.

[0048] The cross-section perpendicular to the water flow direction in the pipe in the overflow part 2 is semicircular. In other embodiments, the cross-sections of the water outlet channel 5 and the water inlet channel 6 and the cross-section perpendicular to the water flow direction in the first water storage bend 4 can also be other shapes, such as circular.

[0049] The urinal further comprises a control system and a water level monitor 18, the water inlet part 9 comprises a buffer water area 16 and a water inlet 17, the water inlet 17 is connected to a clean water source, the water inlet 17 is in communication with the buffer water area 16, the brushing holes 10 are located at the bottom of the buffer water area 16, a plurality of brushing holes 10 are arranged in the same horizontal line, the buffer water area 16 is in communication with the brushing holes 10, and the buffer water area 16 is in communication with the water inlet channel 6; the control system is electrically connected with the water level monitor 18 and the blocking device 19, respectively, and the control system comprises an electric plug (not shown in the figure) which can be connected with an external power source; the water level monitor 18 is arranged in the urinal bowl 7, and the monitoring position of the water level monitor 18 is not higher than the overflow hole 3; the blocking device 19 is arranged in the buffer water area 16; when the water level monitor 18 detects water accumulation, the control system controls the blocking device 19 to block the brushing holes 10 and controls the clean water source to enter the overflow part 2 to backwash the second water storage bend 13 to dredge the sewer outlet 12.

[0050] The blocking device 19 comprises a waterproof electric telescopic push rod 20 and a blocking plate 21. The body of the electric telescopic push rod 20 is fixedly installed on the bottom surface of the buffer water area 16. The electric telescopic push rod 20 is electrically connected with the control system. The push rod end of the electric telescopic push rod 20 is fixedly connected with the blocking plate 21. When the push rod of the electric telescopic push rod 20 is extended, the blocking plate 21 is blocked at the top end of the brushing hole 10. When the urinal is normally used, the push rod of the electric telescopic push rod 20 is retracted, and the brushing hole 10 is unblocked.

[0051] The urinal further comprises an infrared sensor 22. The control system is electrically connected with the infrared sensor 22. The infrared sensor 22 is installed on the upper part of the urinal body 1 and faces the person using the urinal.

[0052] The urinal further comprises a reminding device 23. The reminding device 23 is electrically connected with the control system. When the drain 12 is blocked for a long time, the control system controls the reminding device 23 to give an audible prompt.

[0053] When the urinal is normally used, the infrared sensor 22 senses that the person using the urinal is in front of the urinal. The control system does not trigger the flushing signal. When the person using the urinal leaves, the infrared rays of the infrared sensor 22 are not blocked, and the corresponding signal is transmitted to the control system. The control system controls the opening of the water inlet 17 to flush water. The clean water source flows into the drain 12 after flushing the inner side wall of the urinal through the brushing hole 10. Part of the clean water source flows into the first water trap 4 through the water inlet 6. The water is discharged from the drain 5 to the sewer. The water in the first water trap 4 can be replaced to prevent the water in the first water trap 4 from emitting odor.

[0054] When the bowl 7 is clogged, sewage continues to flow into the bowl 7, and the sewage in the bowl 7 cannot be discharged from the sewer outlet 12. The sewage in the bowl 7 accumulates, and when the water level reaches the overflow hole 3, the sewage is discharged through the overflow hole 3. The sewage flows through the first water trap 4 and the drain 5 into the second water trap 13, and then flows through the second water trap 13 and the sewer outlet 14 into the sewer, preventing the sewage from overflowing outside the bowl 7 and polluting the bathroom environment. The sewage in the bowl 7 accumulates, and the excess water flows out of the overflow hole 3. The water level monitor 18 monitors the accumulated water within 3-5 seconds and sends a corresponding signal to the control system. After receiving the relevant signal, the control system controls the push rod of the electric telescopic push rod 20 of the blocking device 19 to push the blocking plate 21 to block the top of the cleaning hole 10, thereby blocking the cleaning hole 10. Then the control system triggers the flushing, and the cleaning water source only flows to the overflow part 2. The cleaning water source flows through the drain 5 of the overflow part 2 to the second water trap 13 and the sewer outlet 12, flushing away the garbage blocking the sewer outlet 12. The garbage is dispersed by the water flow and then flows into the sewer outlet 12 by gravity to flow into the sewer. The water level monitor 18 does not monitor the accumulated water, and the operation of reversing the sewer outlet 12 is completed. The urinal returns to normal use. The above-mentioned reverse dredging of the sewer outlet 12 through the overflow part 2 needs to be detected by the infrared sensor 22 when there is no one in front of the urinal to prevent sewage from splashing on people. When the above-mentioned overflow part 2 fails to reverse the sewer outlet 12 multiple times (preferably three times), the water level monitor 18 always monitors the accumulated water, and the control system sends a corresponding signal to the reminder device 23. After receiving the signal, the reminder device 23 emits an alarm sound or light to remind that the bowl 7 is clogged and to remind the staff to handle the manual cleaning and dredging.

[0055] Example Two

[0056] As shown in Figure 11 , Figure 12 , the difference between this embodiment and Example One is that an overflow platform 8 is arranged on the inner wall of the urinal body 1 corresponding to the position of the overflow hole 3. The outer side of the overflow platform 8 is a water-facing surface that guides water downward, and the overflow hole 3 is arranged on the bottom surface of the overflow platform 8. The overflow hole 3 is hidden, and the user cannot see it, making the urinal more clean and beautiful in appearance.

[0057] The water flow channel inside the overflow platform 8 that communicates with the overflow hole 3 is inclined upward, and the water flow channel that communicates with the overflow hole 3 communicates with the first water trap 4. When flushing, part of the cleaning water source flows into the first water trap 4 from the water inlet 6, flows into the inclined upward water flow channel that communicates with the overflow hole 3 through the overflow hole 3, and then flows into the bowl, thereby flushing the overflow hole 3 and the inclined upward water flow channel inside the overflow platform that communicates with the overflow hole 3.

[0058] The above further describes the present invention with the help of specific embodiments, but it should be understood that the specific description here should not be construed as limiting the essence and scope of the present invention. Various modifications made to the above embodiments by ordinary technicians in this field after reading this specification are all within the scope of protection of the present invention.

Claims

1. A urinal with anti-overflow function, comprising a urinal body (1), characterized in that: The urinal further comprises an overflow portion (2); a toilet bowl (7) is provided in the urinal body (1); a water inlet portion (9) is provided on the upper portion of the urinal body (1); a brush hole (10) is provided above the toilet bowl (7); the brush hole (10) is connected to the water inlet portion (9); a sewage discharge portion (11) is provided at the bottom of the toilet bowl (7); the sewage discharge portion (11) comprises a drain port (12), a second water trap (13) and a sewage discharge port (14) which are connected in sequence; the drain port (12) is provided at the bottom of the inner wall of the toilet bowl (7); and the sewage discharge port (14) is connected to a sewer; The overflow portion (2) comprises an overflow hole (3), a first water trap (4), a water inlet (6) and a drainage channel (5). The overflow hole (3) is provided on the inner wall of the toilet bowl (7), the overflow hole (3) is communicated with the first water trap (4), the overflow hole (3) is provided on the upper part of the first water trap (4), one end of the water inlet (6) is communicated with a clean water source through the water inlet portion (9), the other end of the water inlet (6) is communicated with the upper end of the first water trap (4), the lower end of the first water trap (4) is communicated with the upper end of the drainage channel (5); the lower end of the drainage channel (5) is communicated with the second water trap (13); The urinal further comprises a blocking device (19). When the drain outlet (12) is blocked, the blocking device (19) can block the scrubbing hole (10) during flushing, and clean water flows sequentially through the water inlet (6), the first water trap (4), the drainage channel (5), and the second water trap (13) to backwash and clear the drain outlet (12).

2. The anti-overflow urinal according to claim 1, characterized in that: The first water trap (4), the water inlet (6), and the upper sections of the drainage channel (5) are all arranged on the back or side of the urinal body (1), and the lower section of the drainage channel (5) is arranged on the bottom surface of the urinal body (1).

3. The anti-overflow urinal according to claim 1, characterized in that: The urinal further comprises a control system and a water level monitor (18); the water inlet portion (9) comprises a buffer water area (16) and a water inlet (17); the water inlet (17) is communicated with the buffer water area (16); the scrubbing hole (10) is located at the bottom of the buffer water area (16); the buffer water area (16) is communicated with the scrubbing hole (10); and the buffer water area (16) is communicated with the water inlet (6); the control system is electrically connected to the water level monitor (18) and the blocking device (19); the water level monitor (18) is arranged in the urinal (7); the monitoring position of the water level monitor (18) is not higher than the overflow hole (3); the blocking device (19) is arranged in the buffer water area (16); when the water level monitor (18) detects accumulated water, the control system controls the blocking device (19) to block the scrubbing hole (10) and controls the clean water source to enter the overflow portion (2) to backwash the second water trap (13) and dredge the drain outlet (12).

4. The anti-overflow urinal according to claim 3, characterized in that: The blocking device (19) comprises a waterproof electric telescopic push rod (20) and a blocking plate (21). The body of the electric telescopic push rod is fixedly mounted on the bottom surface of the buffer water area (16). The end of the push rod of the electric telescopic push rod (20) is fixedly connected to the blocking plate (21). When the push rod of the electric telescopic push rod (20) is extended, the blocking plate (21) blocks the top end of the scrubbing hole (10).

5. The anti-overflow urinal according to claim 3, characterized in that: The urinal further comprises an infrared sensor (22). The control system is electrically connected to the infrared sensor (22). The infrared sensor (22) is mounted on the upper portion of the urinal body (1). The infrared sensor (22) faces the urinal user.

6. The anti-overflow urinal according to claim 3, characterized in that: The urinal further comprises a reminder device (23), which is electrically connected to the control system. When the drain outlet (12) is blocked for a long time, the control system controls the reminder device (23) to give a sound reminder.

7. The anti-overflow urinal according to claim 1, characterized in that: The lower end of the drainage channel (5) is communicated with the side wall of the second water trap (13) through a pipe (24).

8. The anti-overflow urinal according to claim 7, characterized in that: The water outlet (25) of the pipeline (24) is located on the side wall of the second water trap (13), and the water outlet (25) is close to the drain (12).

9. The anti-overflow urinal according to claim 1, characterized in that: An isolation net cover is provided at the water outlet (12).

10. The anti-overflow urinal according to claim 1, characterized in that: An overflow platform (8) is provided on the inner wall of the urinal body (1) at a position corresponding to the overflow hole (3). The outer side of the overflow platform (8) is a water-facing surface for guiding water to flow downward, and the overflow hole (3) is provided on the bottom surface of the overflow platform (8).