Closestool water seal liquid level detection device and urinalysis device

By installing a liquid level sensor on the detection channel of the toilet, the problem of misjudgment caused by the limited installation position of the sensor is solved, and the accurate detection of the water seal emptying status is realized, ensuring the normal use of the urine testing device.

CN223937271UActive Publication Date: 2026-02-24XIAMEN R&T PLUMBING TECH
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Patent Information

Application Number
CN202520166334.X
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2025-01-24
Publication Date
2026-02-24
Estimated Expiration
2035-01-24

AI Technical Summary

Technical Problem

Existing toilet sensors are prone to misjudgment due to the limited installation location and ceramic wall thickness, resulting in inaccurate detection of the water seal emptying status and affecting the normal use of urine testing devices.

Method used

A toilet water seal level detection device was designed. By installing a level sensor on the detection channel, the water level in the detection channel is used to detect the water level in the toilet water seal chamber, avoiding the need for the sensor to be directly installed in the water seal chamber. Combined with the control valve and flush pipe structure, accurate water seal emptying detection is achieved.

Benefits of technology

Stable and reliable water seal emptying detection was achieved, avoiding sensor misjudgment and ensuring the normal operation of the urine testing device.

✦ Generated by Eureka AI based on patent content.

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    Figure CN223937271U_ABST
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Abstract

The utility model discloses a closestool water seal liquid level detection device which comprises a detection unit and a liquid level sensor, the closestool comprises a closestool water seal chamber, the detection unit comprises a detection channel, one end of the detection channel is communicated with the closestool water seal chamber in a sealed mode, and the liquid level sensor is installed on the detection channel. The liquid level of the closestool water seal chamber is detected by detecting the water level of the detection channel; the utility model further discloses a urinalysis device, the liquid level sensor does not need to be installed in a closestool water seal chamber, and whether the water seal is emptied or not can be accurately detected.
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Description

Technical Field

[0001] This utility model relates to the field of sanitary ware technology, and in particular to a toilet water seal level detection device and a urine detection device. Background Technology

[0002] Urine tests are a routine part of physical examinations in hospitals. The traditional method involves the examinee collecting urine in a cup, placing it in a test tube, and then submitting it to the hospital for batch testing. This process is not only cumbersome, but also poses a risk of contact with urine for both the examinee and the doctor. Both the sampling and testing processes present hygiene hazards. Furthermore, hospitals need to collect samples in a unified manner before conducting batch testing, and the test results take some time to be available, making the entire examination cycle quite long.

[0003] To address these issues, a toilet with a urine testing function has been developed. A urine testing device is installed at the back of the toilet bowl. During urine testing, the water seal must first be emptied so that the residual liquid level is below the detection port. Then, the test strip is extended from the ceramic base for urine detection. If the water seal is not emptied before extending the test strip, leakage and contamination of the test strip will occur. If the water seal has been emptied but the sensor malfunctions and misjudges that the water seal is not emptied, the urine test cannot proceed.

[0004] The existing sensors in toilets with urine detection functions are located in the water seal chamber. Due to the limitations of the ceramic wall thickness, they are prone to misjudgment, making it impossible for the sensors to accurately detect whether the water seal is empty. In view of this, the designer of this utility model developed this utility model. Utility Model Content

[0005] The purpose of this invention is to provide a toilet water seal level detection device that can accurately detect whether the water seal is empty.

[0006] Another objective of this invention is to provide a urine testing device.

[0007] To achieve the above objectives, the present invention adopts the following solution:

[0008] A toilet water seal level detection device includes: a detection unit and a level sensor. The toilet includes a toilet water seal chamber. The detection unit includes a detection channel. One end of the detection channel is sealed and connected to the toilet water seal chamber. The level sensor is installed on the detection channel and detects the water level in the toilet water seal chamber by detecting the water level in the detection channel.

[0009] Furthermore, the detection unit includes a control valve and a flushing pipe, the control valve and the flushing pipe being connected to form the detection channel, one end of the flushing pipe being connected to the toilet water seal chamber, and the other end of the flushing pipe being connected to the control valve, and the liquid level sensor being disposed on the flushing pipe or the control valve; or, the detection unit includes a detection tube, and the detection tube is provided with the detection channel.

[0010] Furthermore, the flushing pipe includes a first main flushing pipe and a second main flushing pipe. One end of the first main flushing pipe is connected to the toilet water seal chamber, and the other end of the first main flushing pipe is connected to one end of the second main flushing pipe. The other end of the second main flushing pipe is connected to the control valve.

[0011] Furthermore, the control valve includes a valve core, a first water outlet pipe, and a second water outlet pipe. The valve core controls the opening and closing of the first water outlet pipe and the second water outlet pipe. The first water outlet pipe is connected to the second main flush pipe, and the second water outlet pipe is connected to the brush ring opening at the top of the toilet. The valve core includes a pump, a solenoid valve, or a switching valve. The liquid level sensor is located on the first water outlet pipe or the second main flush pipe.

[0012] A toilet water seal level detection device further includes a siphon tube connected to the toilet water seal chamber, and a spray head is installed at one end of the detection channel connected to the toilet water seal chamber.

[0013] Preferably, the liquid level sensor is a TDS sensor or a capacitive sensor.

[0014] A urine testing device includes the aforementioned water seal level detection device.

[0015] Furthermore, the urine testing device also includes a urine test strip outlet, and the water outlet of the detection channel is located below the urine test strip outlet. When the liquid level sensor detects that the liquid level of the detection channel is below the urine test strip outlet, the urine testing device can selectively control the urine test strip to extend from the urine test strip outlet.

[0016] Furthermore, the toilet includes a flushing assembly and a main control unit. The main control unit controls the flushing assembly to start supplying water to the water seal and / or siphon tube. The siphon tube forms a siphon to draw water from the toilet's water seal chamber. The urine test strip can be extended from the urine test strip outlet when the liquid level in the toilet's water seal chamber drops to below the test strip outlet.

[0017] Furthermore, the urine testing device includes a sealing part. When the liquid level in the toilet water seal chamber is above the test strip outlet, the sealing part seals the test strip outlet, preventing water in the toilet water seal chamber from flowing out of the test strip outlet into the toilet.

[0018] As can be seen from the above technical solution, through the structural design of the detection unit and the liquid level sensor, this utility model can detect the water level in the detection channel after the toilet has completed the water seal emptying action, and then detect the liquid level in the toilet water seal chamber. The liquid level sensor of this utility model does not need to be installed in the toilet water seal chamber, so the detection result can be stable and reliable, and the water seal can be accurately detected. Attached Figure Description

[0019] The accompanying drawings, which are incorporated in and form part of this specification, illustrate embodiments consistent with this disclosure and, together with the description, serve to explain the principles of this disclosure. It is obvious that the drawings described below are merely some embodiments of this disclosure, and those skilled in the art can obtain other drawings based on these drawings without any inventive effort.

[0020] Figure 1 This is a schematic diagram of a smart toilet equipped with the urine detection device of this utility model when no water is in it.

[0021] Figure 2 This is a schematic diagram of a smart toilet equipped with the urine detection device of this utility model when the water seal is not emptied.

[0022] Figure 3 This is a schematic diagram of a smart toilet equipped with the urine detection device of this invention when the water seal of this invention is emptied.

[0023] Figure 4 This is a schematic diagram from another angle of a smart toilet equipped with the urine testing device of this utility model.

[0024] Figure 5 for Figure 4 A magnified view of section A in the image.

[0025] The reference numerals in the attached figures are explained as follows:

[0026] First main flush pipe 1

[0027] Injector head 11

[0028] Liquid level sensor 2

[0029] Second main flush pipe 3

[0030] Toilet 4

[0031] Toilet water seal chamber 41 Urine testing device 42

[0032] Bevel 411 Perforation 412

[0033] 421 Urine test strip protrusion; 422 Sealing part; 423 Device fixing arm

[0034] Control valve 43, drain pipe 44

[0035] Fixed rack 45

[0036] 5. Double-ended screws; 6. Nuts. Detailed Implementation

[0037] Exemplary embodiments will now be described more fully with reference to the accompanying drawings. However, these exemplary embodiments can be implemented in many forms and should not be construed as limited to the examples set forth herein; rather, they are provided so that this disclosure will be more comprehensive and complete, and will fully convey the concept of the exemplary embodiments to those skilled in the art. The described features, structures, or characteristics may be combined in any suitable manner in one or more embodiments.

[0038] Furthermore, the accompanying drawings are merely illustrative of this disclosure and are not necessarily drawn to scale. The same reference numerals in the drawings denote the same or similar parts, and therefore repeated descriptions of them will be omitted. Some block diagrams shown in the drawings are functional entities and do not necessarily correspond to physically or logically independent entities. These functional entities may be implemented in software, in one or more hardware modules or integrated circuits, or in different network and / or processor devices and / or microcontroller devices.

[0039] Reference Figures 1-3 As shown, this utility model discloses a toilet water seal level detection device, including: a detection unit and a level sensor 2. The toilet 4 includes a toilet water seal chamber 41. The detection unit includes a detection channel. One end of the detection channel is sealed and connected to the toilet water seal chamber 41. The level sensor 2 is installed on the detection channel and detects the water level in the toilet water seal chamber 41 by detecting the water level in the detection channel.

[0040] Therefore, through the structural design of the detection unit and the liquid level sensor 2, this utility model can detect the water level in the detection channel and then the liquid level in the toilet water seal chamber 41 after the toilet has finished emptying the water seal. The liquid level sensor 2 of this utility model does not need to be installed inside the toilet water seal chamber 41, so the detection result can be stable and reliable, and the water seal can be accurately detected.

[0041] Furthermore, at Figure 1-3 In the embodiment shown, the detection unit includes a control valve 43 and a flushing pipe. The control valve 43 and the flushing pipe are connected to form the detection channel. One end of the flushing pipe is connected to the toilet water seal chamber 41, and the other end of the flushing pipe is connected to the control valve 43. The liquid level sensor 2 is installed on the flushing pipe or the control valve 43.

[0042] Alternatively, as another embodiment, the detection unit includes a detection tube having the detection channel.

[0043] However, it is not limited to the above. The detection unit may not necessarily be a combination of control valve 43 and flushing pipe. It may also be a combination of valve core and other water circuits, or a separate detection pipe connected to the water seal chamber, with the flushing water circuit and control valve 43 set up independently.

[0044] Furthermore, the flushing pipe includes a first main flushing pipe 1 and a second main flushing pipe 3. One end of the first main flushing pipe 1 is connected to the toilet water seal chamber 41, and the other end of the first main flushing pipe 1 is connected to one end of the second main flushing pipe 3. The other end of the second main flushing pipe 3 is connected to the control valve 43.

[0045] Furthermore, the control valve 43 includes a valve core, a first water outlet pipe and a second water outlet pipe. The valve core controls the opening and closing of the first water outlet pipe and the second water outlet pipe. The first water outlet pipe is connected to the second main flush pipe 3, and the second water outlet pipe is connected to the brush ring opening at the top of the toilet. The valve core includes a pump, a solenoid valve or a switching valve, and the liquid level sensor is located on the first water outlet pipe or the second main flush pipe 3.

[0046] Furthermore, the present invention also includes a siphon tube connected to the toilet water seal chamber, and a spray head 11 is installed at one end of the detection channel connected to the toilet water seal chamber 41.

[0047] Preferably, the liquid level sensor 2 is a TDS sensor or a capacitive sensor.

[0048] In this embodiment, the liquid level sensor 2 is installed on the flushing pipe; specifically, it can be installed on the second main flushing pipe 3.

[0049] In another embodiment, the liquid level sensor 2 can be installed on the control valve; specifically, it can be installed on the first outlet pipe.

[0050] In another embodiment, a detection tube is also included, which is independently set with respect to the flushing pipe. The control valve is connected to a four-way pipe. The first outlet of the four-way pipe is connected to the main flushing pipe. The second outlet of the four-way pipe is connected to the detection tube. The third outlet of the four-way pipe is connected to the brush ring water pipe. The detection tube is connected to the toilet water seal chamber 41. The liquid level sensor 2 is set on the detection tube.

[0051] In another embodiment, a detection tube is also included, which is independently set apart from the flush pipe. One end of the detection tube is connected to the toilet water seal chamber 41, and the other end is suspended and connected to the atmosphere. The liquid level sensor 2 is set on the detection tube.

[0052] Please see Figures 1 to 5 As shown, this utility model also discloses a urine testing device 42, which includes the above-mentioned water seal liquid level detection device.

[0053] Furthermore, the urine testing device also includes a urine test strip outlet 421, and the water outlet of the detection channel is located below the urine test strip outlet 421. When the liquid level sensor 2 detects that the liquid level of the detection channel is below the urine test strip outlet 421, the urine testing device 42 can selectively control the urine test strip to extend from the urine test strip outlet 421.

[0054] Furthermore, the toilet includes a flushing assembly and a main control unit. The main control unit controls the flushing assembly to start supplying water to the water seal and / or siphon tube. The siphon tube forms a siphon to draw water from the toilet water seal chamber 421. The urine test strip can be extended from the urine test strip extension 421 when the liquid level in the toilet water seal chamber 41 drops to below the test strip extension 421.

[0055] The remaining structures of the urine testing device 42 can be selected from the remaining structures of commonly used urine testing devices that can be installed in the smart toilet 4, which will not be described in detail here.

[0056] Furthermore, the urine testing device 42 includes a sealing part 422. When the liquid level in the toilet water seal chamber 41 is above the test strip outlet 421, the sealing part 422 seals the test strip outlet 421, preventing water in the toilet water seal chamber 41 from flowing out of the test strip outlet 421 into the toilet.

[0057] After the toilet 4 completes the water seal emptying action, the liquid level in the second main flush pipe 3 is the same as the liquid level in the toilet water seal chamber 41. When the liquid level sensor 2 detects that the liquid level in the second main flush pipe 3 is below the urine test strip outlet 421, the urine test device 42 can selectively control the urine test strip to extend from the urine test strip outlet 421. Since the liquid level in the second main flush pipe 3 is the same as the liquid level in the toilet water seal chamber 41 after the toilet 4 completes the water seal emptying action, the liquid level sensor 2 of this invention detects the liquid level in the second main flush pipe 3, which is equivalent to detecting the liquid level in the toilet water seal chamber 41. The liquid level sensor 2 of this invention does not need to be installed inside the toilet water seal chamber 41, but is installed on the second main flush pipe 3. The liquid level on the main flush pipe 1 is easier to detect than the liquid level in the toilet water seal chamber 41, which makes the detection results stable and reliable, and achieves accurate detection of whether the water seal is empty.

[0058] Preferably, in order to facilitate the realization that the liquid level of the second main flush pipe 3 is the same as the liquid level of the toilet water seal chamber 41, the detection unit 1 can be a U-shaped connector, so that the liquid level of the second main flush pipe 3 is the same as the liquid level of the toilet water seal chamber 41.

[0059] Furthermore, in order to facilitate the collection of water on the bottom surface of the toilet water seal chamber 41, the bottom surface of the toilet water seal chamber 41 can be an inclined surface 411 sloping downwards, and one end of the detection unit 1 is installed at the bottom of the inclined surface 411.

[0060] Next, the spray head 11 is tilted upwards to increase the flushing range of the toilet water seal chamber 41.

[0061] Furthermore, in order to prevent the water sprayed from the nozzle 11 from contaminating the urine test strip outlet 421, there is a gap between the nozzle 11 and the urine test strip outlet 421.

[0062] Furthermore, to facilitate the installation of the first main flush pipe 1 and the second main flush pipe 3, the diameter of the first main flush pipe 1 is the same as the diameter of the second main flush pipe 3.

[0063] Furthermore, the toilet 4 may have a through hole 412 below the toilet water seal chamber 41, through which the first main flush pipe 1 passes. The diameter of the through hole 412 is larger than the diameter of the first main flush pipe 1, thereby facilitating the installation of the first main flush pipe 1. Preferably, the first main flush pipe 1 can be a flexible hose.

[0064] In summary, when this utility model requires a urine test, the toilet 4 is flushed to empty the water seal, the liquid level sensor 2 starts working, and the liquid level in the second main flush pipe 3 is the same as the liquid level in the toilet water seal chamber 41, i.e., level. When the liquid level sensor 2 detects that the liquid level in the second main flush pipe 3 is below the urine test strip outlet 421, the urine testing device 42 controls the urine test strip to extend from the urine test strip outlet 421 to proceed to the next step of the urine test. If the liquid level sensor 2 detects that the liquid level in the inlet pipe 3 is above the urine test strip outlet 421, the urine testing device 42 will not control the urine test strip to extend from the urine test strip outlet 421, the toilet 4 will empty the water seal again, and the next step of the urine test will not be started.

[0065] Please see Figure 4 and Figure 5 As shown, the urine testing device 42 of this utility model is also provided with a device fixing arm 423. The smart toilet 4 has a fixing frame 45 inside the ceramic. One end of a double-ended screw 5 is screwed into the fixing frame 45, and the other end of the double-ended screw 5 is screwed into the device fixing arm 423. The end screwed into the device fixing arm 423 is screwed into a nut 6, thereby realizing the installation and fixing of the urine testing device 42.

[0066] It should be understood that the various examples described above can be utilized in multiple directions, such as tilted, inverted, horizontal, vertical, etc., and in multiple configurations, without departing from the principles of this invention. The embodiments shown in the accompanying drawings are merely examples of effective application of the principles of this invention, and this invention is not limited to any specific details of these embodiments.

[0067] Other embodiments of this disclosure will readily occur to those skilled in the art upon consideration of the specification and practice of the disclosure herein. This application is intended to cover any variations, uses, or adaptations of this disclosure that follow the general principles of this disclosure and include common knowledge or customary techniques in the art not disclosed herein. The specification and examples are to be considered exemplary only, and the true scope and spirit of this disclosure are indicated by the appended claims.

Claims

1. A toilet water seal level detection device, characterized in that, include: The toilet includes a detection unit and a liquid level sensor. The toilet includes a toilet water seal chamber. The detection unit includes a detection channel. One end of the detection channel is sealed and connected to the toilet water seal chamber. The liquid level sensor is installed on the detection channel and detects the liquid level in the toilet water seal chamber by detecting the water level in the detection channel.

2. The toilet water seal level detection device as described in claim 1, characterized in that, The detection unit includes a control valve and a flushing pipe. The control valve and the flushing pipe are connected to form the detection channel. One end of the flushing pipe is connected to the toilet water seal chamber, and the other end of the flushing pipe is connected to the control valve. The liquid level sensor is installed on the flushing pipe or the control valve. Alternatively, the detection unit may include a detection tube, which may have the detection channel.

3. The toilet water seal level detection device as described in claim 2, characterized in that, The flushing pipe includes a first main flushing pipe and a second main flushing pipe. One end of the first main flushing pipe is connected to the toilet water seal chamber, and the other end of the first main flushing pipe is connected to one end of the second main flushing pipe. The other end of the second main flushing pipe is connected to the control valve.

4. The toilet water seal level detection device as described in claim 3, characterized in that: The control valve includes a valve core, a first water outlet pipe, and a second water outlet pipe. The valve core controls the opening and closing of the first and second water outlet pipes. The first water outlet pipe is connected to the second main flush pipe, and the second water outlet pipe is connected to the brush ring opening at the top of the toilet. The valve core includes a pump, a solenoid valve, or a switching valve. The liquid level sensor is located on the first water outlet pipe or the second main flush pipe.

5. The toilet water seal level detection device as described in claim 1, characterized in that: A spray head is installed at one end of the detection channel that connects to the toilet water seal chamber.

6. The toilet water seal level detection device as described in claim 1, characterized in that: The liquid level sensor is a TDS sensor or a capacitive sensor.

7. A urine testing device, characterized in that, Includes the water seal liquid level detection device according to any one of claims 1-6.

8. A urine testing device as described in claim 7, characterized in that, The urine testing device also includes a urine test strip outlet. The water outlet of the detection channel is located below the urine test strip outlet. When the liquid level sensor detects that the liquid level of the detection channel is below the urine test strip outlet, the urine testing device can selectively control the urine test strip to extend from the urine test strip outlet.

9. A urine testing device as described in claim 8, characterized in that, The toilet includes a flushing assembly and a main control unit, and also includes a siphon tube connected to the toilet water seal chamber. The main control unit controls the flushing assembly to start supplying water to the water seal and / or the siphon tube. The siphon tube forms a siphon to draw water from the toilet water seal chamber. The urine test strip can be extended from the urine test strip outlet when the liquid level in the toilet water seal chamber drops to below the test strip outlet.

10. A urine testing device as described in claim 8, characterized in that, The urine testing device includes a sealing part. When the liquid level in the toilet water seal chamber is above the test strip outlet, the sealing part seals the test strip outlet, preventing water in the toilet water seal chamber from flowing out of the test strip outlet into the toilet.