CN220912411U - Water level detection device, toilet core and toilet - Google Patents

Abstract

The application relates to a water level detection device, a toilet core and a toilet. The closestool comprises a closestool seat, a water tank and a closestool core, wherein the closestool core comprises a base and a water level detection device, and the base is covered above the water tank. The water level detection device comprises a detection box, a circuit board and a plurality of sensor electrodes, wherein a limit part is arranged in the detection box, the detection box is provided with a detection end and an assembly end which are far away from each other along the length extension direction, the assembly end is provided with an assembly port, and the detection end is used for extending into a water tank; the circuit board is inserted into the detection box along the assembly port; the plurality of sensor electrodes are all arranged on the circuit board and electrically connected with the circuit board, are all positioned between the circuit board and the inner peripheral surface of the detection box, are arranged at intervals along the length extending direction, and are abutted to the circuit board by the limiting parts so that the sensor electrodes are attached to the inner peripheral surface of the detection box.

Description

Water level detection device, toilet core and toilet

Technical Field

The utility model relates to the technical field of intelligent bathrooms, in particular to a water level detection device, a toilet core and a toilet.

Background

A part of traditional intelligent closestool adopts a capacitance detection chip and a water level electrode, the change of the water level in the water tank is detected by utilizing the change of capacitance, and the water level electrodes at different positions represent the water levels of different heights of the water tank.

However, such conventional intelligent toilets have a problem in that the sensitivity of the water level electrode is insufficient and the detected water level change of the water tank is not accurate enough.

The above information disclosed in the background of the application is only for the understanding of the background of the application and may contain information that does not form the prior art.

Disclosure of utility model

In view of the above, it is necessary to provide a water level detection device, a toilet core, and a toilet.

A water level detection apparatus for detecting a water level of a water tank, the water level detection apparatus comprising:

The detection box is internally provided with a limit part, the detection box is provided with a detection end and an assembly end which are mutually far away along the length extending direction, the assembly end is provided with an assembly port, and the detection end is used for extending into the water tank;

The circuit board is inserted into the detection box along the assembly port; and

The sensor electrodes are arranged on the circuit board and are electrically connected with the circuit board, the sensor electrodes are arranged between the circuit board and the inner peripheral surface of the detection box and are arranged at intervals along the length extending direction, and the limiting parts are abutted to the circuit board so that the sensor electrodes are attached to the inner peripheral surface of the detection box.

The water level detection device at least comprises the following beneficial effects: the detection end of the detection box can be used for being in contact with water in the water tank, so that water level detection is realized. Specifically, the circuit board, the sensor electrode and the detected object (such as water in a toilet water tank) in the detection box are separated by the side wall of the insulation detection box, and the circuit board, the sensor electrode and the side wall of the detection box form a capacitance storage body with the detected object (such as water in the toilet water tank). When the detected object is changed from air to water, the capacitance storage body formed by the corresponding three parts is changed. The circuit board sensor electrode continuously generates an electromagnetic field for sensing the change of the capacitance of the capacitive reservoir. In the design and use process, a circuit and software are initialized, the current stored capacitance is checked in the electrifying process, namely, a sensor electrode arranged in the detection box and the side wall of the insulation detection box form a basic capacitance Cp together, and when the water level rises to the horizontal position of a certain sensor electrode, the detection box shell and water generate another capacitance Cf. The total capacitance recorded by all sensor electrodes on the circuit board changes along with the rise and fall of the water level, and the total capacitance can be converted into an electric signal reflecting the water level change after being processed. It should be emphasized that if the sensor electrode on the circuit board is not tightly attached to the detection box, the detection sensitivity and the consistency of detection will be affected. After the circuit board is inserted into the detection box from the assembly port, the limiting part can be abutted against the circuit board, and the circuit board is attached to the inner peripheral surface of the detection box under the guiding and limiting actions of the limiting part. The sensor electrode is arranged on one side of the circuit board, which is attached to the detection box, and can be considered to be pressed and attached to the inner peripheral surface of the detection box along with the circuit board, so that the detection sensitivity of the sensor electrode is improved.

In one embodiment, the limiting portion includes a limiting rib, and the limiting rib abuts against one side of the circuit board, which faces away from the sensor electrode, so that the sensor electrode is attached to an inner peripheral surface of the detection box. The limiting convex ribs can press and attach the circuit board and the sensor electrode on the circuit board on the inner peripheral surface of the detection box, so that good contact between the sensor electrode and the detection box is ensured.

In one embodiment, the limiting portion includes a limiting groove, the circuit board is at least partially inserted into the limiting groove, and a groove wall of the limiting groove is attached to the circuit board, so that the sensor electrode on the circuit board is attached to an inner peripheral surface of the detection box. The circuit board receives the constraint of the groove wall of the limiting groove, so that the circuit board and the sensor electrode on the circuit board can be tightly attached to the inner peripheral surface of the detection box, and good contact between the sensor electrode and the detection box is ensured.

In one embodiment, the water level detection device further comprises a sealing member arranged in the detection box, wherein the sealing member at least covers the assembly opening so as to seal the circuit board and the sensor electrode in the detection box. The sealing element can play a role in preventing water and moisture, and can prevent water from corroding the circuit board and the sensor electrode on the circuit board in the use process, thereby being beneficial to maintaining the normal work of the water level detection device and prolonging the service life.

In one embodiment, the seal is a sealant poured into the cartridge from the fitting port.

The application also relates to a toilet core, which comprises a base and the water level detection device in any embodiment, wherein the base is used for being covered above a water tank of a toilet, a detection hole is formed in the base, a detection box of the water level detection device penetrates through the detection hole and is arranged on the base, and a detection end of the detection box extends into the water tank through the detection hole.

Because the toilet core comprises the water level detection device according to any one of the embodiments, the toilet core at least comprises the following beneficial effects: when the base cover of the toilet core is arranged above the water tank of the toilet, the detection end of the detection box can pass through the detection hole of the base and be in contact with water in the water tank, so that water level detection is realized. Specifically, the circuit board, the sensor electrode and the detected object (such as water in a toilet water tank) in the detection box are separated by the side wall of the insulation detection box, and the circuit board, the sensor electrode and the side wall of the detection box form a capacitance storage body with the detected object (such as water in the toilet water tank). When the detected object is changed from air to water, the capacitance storage body formed by the corresponding three parts is changed. The circuit board sensor electrode continuously generates an electromagnetic field for sensing the change of the capacitance of the capacitive reservoir. In the design and use process, a circuit and software are initialized, the current stored capacitance is checked in the electrifying process, namely, a sensor electrode arranged in the detection box and the side wall of the insulation detection box form a basic capacitance Cp together, and when the water level rises to the horizontal position of a certain sensor electrode, the detection box shell and water generate another capacitance Cf. The total capacitance recorded by all sensor electrodes on the circuit board changes along with the rise and fall of the water level, and the total capacitance can be converted into an electric signal reflecting the water level change after being processed. It should be emphasized that, after the circuit board is inserted into the detection box from the assembly port, the limiting part can be abutted against the circuit board, and the circuit board is attached to the inner peripheral surface of the detection box under the guiding and limiting actions of the limiting part. The sensor electrode is arranged on one side of the circuit board, which is attached to the detection box, and can be considered to be tightly attached to the inner peripheral surface of the detection box along with the circuit board, so that the detection sensitivity and the detection consistency of the sensor electrode are improved.

In one embodiment, the water level detection device further comprises a sealing ring sleeved on the outer peripheral surface of the detection box, and the outer peripheral surface of the detection box is in sealing abutting connection with the hole wall of the detection hole through the sealing ring. The base cover is arranged above the water tank, water in the water tank is easy to splash or evaporate, the joint of the detection hole and the detection box can be sealed by the sealing ring, the waterproof and moistureproof effects are further achieved, the phenomenon that water vapor is transmitted upwards through the detection hole to erode the circuit board and the sensor electrode on the circuit board in the use process is avoided, and the normal work of the water level detection device is maintained and the service life is prolonged.

In one embodiment, a rib is convexly arranged on one side of the base, which faces the water tank, and the rib surrounds the detection box along the circumferential direction of the detection box. The surrounding ribs can protect the detection box which is surrounded by the surrounding ribs, and the detection box is prevented from being extruded and collided.

In one embodiment, the inner circumferential surface of the surrounding rib is spaced from the outer circumferential surface of the detection box. If the inner peripheral surface of the surrounding rib is too close to the outer peripheral surface of the detection box, water is more easily adhered to the outer peripheral surface of the detection box under the action of tension and excessively extends upwards, so that the water level detected by the water level detection device is not consistent with the actual water level, and the accuracy of the water level detection result is influenced. Therefore, the inner peripheral surface of the surrounding rib and the outer peripheral surface of the detection box are arranged at intervals, the problems can be avoided, and the accuracy of the water level detection result of the water level detection device is improved.

In one embodiment, the sidewall of the enclosing rib is provided with a gas discharge groove, the gas discharge groove extends along the length extending direction of the detection box, and the gas discharge groove is at least partially located above the liquid level in the water tank. If the sidewall of the enclosing rib is not provided with the air discharge groove, air can be stored in the enclosing rib, and the rising of the water level in the enclosing rib can be blocked when the air pressure in the enclosing rib is too high, so that the water level cannot further spread to submerge the detection end of the detection box, the water level in the water tank can be caused to rise actually, and the water level detection device cannot detect the situation normally. Therefore, the air release groove is formed in the side wall of the surrounding rib, and is at least partially located above the liquid level in the water tank, so that the air release groove can timely discharge air in the surrounding rib, the water level around the detection box can be normally raised, and the accurate water level is detected.

The application also relates to a toilet, which comprises a toilet seat, a water tank and the toilet core according to any embodiment, wherein the water tank is arranged on the toilet seat, and the base cover is arranged above the water tank.

Because the toilet bowl comprises the toilet bowl movement according to any one of the embodiments, the toilet bowl has at least the following advantages: when the base cover of the toilet core is arranged above the water tank of the toilet, the detection end of the detection box can pass through the detection hole of the base and be in contact with water in the water tank, so that water level detection is realized. Specifically, the circuit board, the sensor electrode and the detected object (such as water in a toilet water tank) in the detection box are separated by the side wall of the insulation detection box, and the circuit board, the sensor electrode and the side wall of the detection box form a capacitance storage body with the detected object (such as water in the toilet water tank). When the detected object is changed from air to water, the capacitance storage body formed by the corresponding three parts is changed. The circuit board sensor electrode continuously generates an electromagnetic field for sensing the change of the capacitance of the capacitive reservoir. In the design and use process, a circuit and software are initialized, the current stored capacitance is checked in the electrifying process, namely, a sensor electrode arranged in the detection box and the side wall of the insulation detection box form a basic capacitance Cp together, and when the water level rises to the horizontal position of a certain sensor electrode, the detection box shell and water generate another capacitance Cf. The total capacitance recorded by all sensor electrodes on the circuit board changes along with the rise and fall of the water level, and the total capacitance can be converted into an electric signal reflecting the water level change after being processed. It should be emphasized that, after the circuit board is inserted into the detection box from the assembly port, the limiting part can be abutted against the circuit board, and the circuit board is attached to the inner peripheral surface of the detection box under the guiding and limiting actions of the limiting part. The sensor electrode is arranged on one side of the circuit board, which is attached to the detection box, and can be considered to be tightly attached to the inner peripheral surface of the detection box along with the circuit board, so that the detection sensitivity and the detection consistency of the sensor electrode are improved.

Drawings

In order to more clearly illustrate the technical solutions of the embodiments or the conventional techniques of the present application, the drawings required for the descriptions of the embodiments or the conventional techniques will be briefly described below, and it is apparent that the drawings in the following description are only some embodiments of the present application, and other drawings may be obtained according to the drawings without inventive effort for those skilled in the art.

Fig. 1 is a schematic structural view of a toilet core according to an embodiment of the present application.

Fig. 2 is an exploded view of a toilet core according to an embodiment of the present application.

Fig. 3 is an exploded view of a water level detecting device according to an embodiment of the present application.

Fig. 4 is a top view of the water level detecting apparatus of the embodiment shown in fig. 3.

Fig. 5 is a cross-sectional view of a water level detecting apparatus according to an embodiment of the present application.

Fig. 6 is a cross-sectional view of a toilet cartridge according to one embodiment of the present application.

Fig. 7 is a schematic view of a portion of a toilet core according to an embodiment of the present application.

Fig. 8 is a schematic structural view of a toilet according to an embodiment of the present application.

Reference numerals:

10. Toilet bowl movement; 11. a water level detecting device; 12. a base; 100. a detection box; 110. a detection end; 120. an assembly end; 121. an assembly port; 130. a limit part; 131. limiting convex ribs; 132. a limit groove; 200. a circuit board; 300. a sensor electrode; 400. a detection hole; 500. surrounding ribs; 510. a gas discharge groove; 600. a seal ring; 20. a water tank; 30. a toilet seat; l, length extension direction.

Detailed Description

In order that the above objects, features and advantages of the application will be readily understood, a more particular description of the application will be rendered by reference to the appended drawings. In the following description, numerous specific details are set forth in order to provide a thorough understanding of the present application. The present application may be embodied in many other forms than described herein and similarly modified by those skilled in the art without departing from the spirit of the application, whereby the application is not limited to the specific embodiments disclosed below.

Referring to fig. 1, 2 and 3, in some embodiments, the present application provides a water level detection device 11 that can be used to detect the water level of a water tank 20 as shown in fig. 1 and 2. As shown in fig. 3, the water level detecting device 11 includes a detecting case 100, a circuit board 200, and a plurality of sensor electrodes 300. As shown in fig. 4 and 5, a limiting portion 130 is disposed in the detection box 100, and the detection box 100 has a detection end 110 and an assembly end 120 that are far away from each other along a length extending direction L. As shown in fig. 3, the assembly end 120 is provided with an assembly opening 121. As shown in fig. 5 and 6, the sensing end 110 is configured to extend into the tank 20. As shown in fig. 5, the circuit board 200 is inserted into the cartridge interior 100 along the fitting port 121. The plurality of sensor electrodes 300 are disposed on the circuit board 200 and electrically connected to the circuit board 200, the plurality of sensor electrodes 300 are disposed between the circuit board 200 and the inner peripheral surface of the detection box 100 and are disposed at intervals along the length extending direction L, and the limiting portion 130 abuts against the circuit board 200, so that the sensor electrodes 300 are attached to the inner peripheral surface of the detection box 100.

The water level detection device 11 at least has the following advantages: the detection end 110 of the detection cartridge 100 may be adapted to contact water in the water tank 20 to enable water level detection. Specifically, the circuit board in the detection box, the sensor electrode 300 and the detected object (such as water in the toilet water tank) are isolated from the side wall of the detection box 100, and the circuit board sensor electrode 300, the side wall of the detection box 100 and the detected object (such as water in the toilet water tank) form a capacitor storage body. When the detected object is changed from air to water, the capacitance storage body formed by the corresponding three parts is changed. The circuit board sensor electrode 300 continuously generates an electromagnetic field for sensing a change in capacitance of the capacitive reservoir. In the design and use process, the circuit and the software are initialized, the current stored capacitance is checked in the power-on process, namely, the sensor electrode 300 arranged in the detection box 100 and the side wall of the insulation detection box 100 form a basic capacitance Cp together, and when the water level rises to the horizontal position of a certain sensor electrode 300, the shell of the detection box 100 and the water generate another capacitance Cf. The total capacitance recorded by all the sensor electrodes 300 on the circuit board 200 changes along with the rise and fall of the water level, and can be converted into an electric signal reflecting the water level change after processing. It should be emphasized that if the sensor electrode 300 on the circuit board is not tightly attached to the detection cartridge 100, the detection sensitivity is affected. In the present application, after the circuit board 200 is inserted into the detection box 100 from the assembly port 121, the limiting portion 130 can abut against the circuit board 200, and the circuit board 200 is attached to the inner peripheral surface of the detection box 100 under the guiding and limiting actions of the limiting portion 130. The sensor electrode 300 is provided on the side of the circuit board 200 attached to the detection case 100, and it is considered that the sensor electrode 300 is pressed against the inner peripheral surface of the detection case 100 along with the circuit board 200, so that the detection sensitivity and the detection uniformity of the sensor electrode 300 are improved.

Further, as shown in fig. 4 and 5, in some embodiments, the limiting portion 130 includes a limiting rib 131, and the limiting rib 131 abuts against a side of the circuit board 200 facing away from the sensor electrode 300, so that the sensor electrode 300 is attached to an inner peripheral surface of the detection case 100. The limiting ribs 131 can press and attach the circuit board 200 and the sensor electrode 300 thereon to the inner peripheral surface of the detection box 100, so as to ensure good contact between the sensor electrode 300 and the detection box 100.

Further, as shown in fig. 4, in some embodiments, the limiting portion 130 includes a limiting groove 132, and the circuit board 200 is at least partially inserted into the limiting groove 132, and a groove wall of the limiting groove 132 is in contact with the circuit board 200, so that the sensor electrode 300 on the circuit board 200 is in contact with an inner peripheral surface of the detection case 100. The circuit board 200 receives the constraint of the groove wall of the limit groove 132, so that the circuit board 200 and the sensor electrode 300 thereon can be tightly attached to the inner peripheral surface of the detection box 100, ensuring good contact between the sensor electrode 300 and the detection box 100.

In some embodiments, the water level detection device 11 further includes a sealing member (not shown) provided to the detection cartridge 100, and covering at least the fitting hole 121 to seal the circuit board 200 and the sensor electrode 300 within the detection cartridge 100. The sealing member can play a role in preventing water and moisture, and can prevent the circuit board 200 and the sensor electrode 300 on the circuit board 200 from being corroded by water and air in the using process, thereby being beneficial to maintaining the normal operation of the water level detection device 11 and prolonging the service life. For example, in some embodiments, the seal is a sealant poured into the cartridge 100 from the fitting port 121.

In some embodiments, the detection box 100 may be made of a material with good hydrophobicity and placed vertically, so as to weaken the adhesion effect of water drops on the outer surface of the detection box 100, which is beneficial to improving the detection accuracy of the water level.

Referring to fig. 1 and 2, the present application further relates to a toilet core 10, which includes a base 12 and a water level detection device 11 according to any of the above embodiments, wherein the base 12 is used for covering the water tank 20 of the toilet, a detection hole 400 is formed in the base 12, a detection box 100 of the water level detection device 11 is disposed through the detection hole 400 and penetrates the base 12, and a detection end 110 of the detection box 100 extends into the water tank 20 through the detection hole 400. When the base 12 of the toilet core 10 is covered above the water tank 20 of the toilet, the detection end 110 of the detection box 100 can pass through the detection hole 400 of the base 12 and contact with water in the water tank 20, so as to realize water level detection.

Further, as shown in fig. 3 and 5, in some embodiments, the water level detecting device 11 further includes a sealing ring 600, the sealing ring 600 is sleeved on the outer peripheral surface of the detecting box 100, and the outer peripheral surface of the detecting box 100 is in sealing contact with the wall of the detecting hole 400 through the sealing ring 600. The base 12 is covered and arranged above the water tank 20, water in the water tank 20 is easy to splash upwards or evaporate, the sealing ring 600 can seal the joint of the detection hole 400 and the detection box 100, the waterproof and moistureproof effects are further achieved, the phenomenon that water vapor is transmitted upwards through the detection hole 400 to erode the circuit board 200 and the sensor electrode 300 on the circuit board 200 in the use process is avoided, and the normal operation of the water level detection device 11 is maintained and the service life is prolonged.

Referring to fig. 6 and 7, in some embodiments, a rib 500 is protruding from a side of the base 12 facing the water tank 20, and the rib 500 surrounds the detection box 100 along a circumferential direction of the detection box 100. The ribs 500 can protect the cartridge 100 enclosed therein from extrusion and collision of the cartridge 100.

Further, as shown in fig. 6, in some embodiments, the inner circumferential surface of the rib 500 is spaced from the outer circumferential surface of the cartridge 100. If the inner circumferential surface of the rib 500 is too close to the outer circumferential surface of the detection box 100, water is more likely to adhere to the outer circumferential surface of the detection box 100 under tension and excessively extends upward, so that the water level detected by the water level detection device 11 does not match the actual water level, i.e., the accuracy of the water level detection result is affected. Therefore, the present embodiment can avoid the aforementioned problem by arranging the inner peripheral surface of the rib 500 and the outer peripheral surface of the detection box 100 at intervals, and improve the accuracy of the water level detection result by the water level detection device 11.

Further, as shown in fig. 7, in some embodiments, a gas release groove 510 is formed on a side wall of the rib 500, the gas release groove 510 is disposed along a length extending direction L of the detection box 100, and the gas release groove 510 is at least partially located above a liquid surface in the water tank 20. If the sidewall of the enclosing rib 500 is not provided with the air release groove 510, air will be stored in the enclosing rib 500, and when the air pressure in the air will be too high, the rising of the water level in the enclosing rib 500 will be blocked, so that the water level cannot further spread to submerge the detection end 110 of the detection box 100, which may result in the situation that the water level in the water tank 20 actually rises, but the water level detection device 11 cannot normally detect. Therefore, in this embodiment, the sidewall of the rib 500 is provided with the air release groove 510, and the air release groove 510 is at least partially located above the liquid level in the water tank 20, so that the air release groove 510 can timely release the air in the rib 500, and the water level around the detection box 100 can rise normally, so that an accurate water level can be detected.

In addition, as shown in fig. 8, the present application further relates to a toilet, which comprises a toilet seat 30, a water tank 20, and a toilet core 10 according to any of the above embodiments, wherein the water tank 20 is disposed on the toilet seat 30, and the base 12 is disposed above the water tank 20. Because the toilet bowl includes the toilet bowl core 10 according to any of the embodiments, the toilet bowl also includes at least the beneficial effects of the toilet bowl core 10 and the water level detection device 11, which are not described herein.

The technical features of the above-described embodiments may be arbitrarily combined, and all possible combinations of the technical features in the above-described embodiments are not described for brevity of description, however, as long as there is no contradiction between the combinations of the technical features, they should be considered as the scope of the description.

The above examples illustrate only a few embodiments of the application, which are described in detail and are not to be construed as limiting the scope of the claims. It should be noted that it will be apparent to those skilled in the art that several variations and modifications can be made without departing from the spirit of the application, which are all within the scope of the application. Accordingly, the scope of protection of the present application is to be determined by the appended claims.

In the description of the present application, it should be understood that, if any, these terms "center", "longitudinal", "transverse", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "axial", "radial", "circumferential", etc., are used herein with respect to the orientation or positional relationship shown in the drawings, these terms refer to the orientation or positional relationship for convenience of description and simplicity of description only, and do not indicate or imply that the apparatus or element referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore should not be construed as limiting the application.

Furthermore, the terms "first," "second," and the like, if any, are used for descriptive purposes only and are not to be construed as indicating or implying a relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defining "a first" or "a second" may explicitly or implicitly include at least one such feature. In the description of the present application, the terms "plurality" and "a plurality" if any, mean at least two, such as two, three, etc., unless specifically defined otherwise.

In the present application, unless explicitly stated and limited otherwise, the terms "mounted," "connected," "secured," and the like are to be construed broadly. For example, the two parts can be fixedly connected, detachably connected or integrated; can be mechanically or electrically connected; either directly or indirectly, through intermediaries, or both, may be in communication with each other or in interaction with each other, unless expressly defined otherwise. The specific meaning of the above terms in the present application can be understood by those of ordinary skill in the art according to the specific circumstances.

In the present application, unless expressly stated or limited otherwise, the meaning of a first feature being "on" or "off" a second feature, and the like, is that the first and second features are either in direct contact or in indirect contact through an intervening medium. Moreover, a first feature being "above," "over" and "on" a second feature may be a first feature being directly above or obliquely above the second feature, or simply indicating that the first feature is level higher than the second feature. The first feature being "under", "below" and "beneath" the second feature may be the first feature being directly under or obliquely below the second feature, or simply indicating that the first feature is less level than the second feature.

It will be understood that if an element is referred to as being "fixed" or "disposed" on another element, it can be directly on the other element or intervening elements may also be present. If an element is referred to as being "connected" to another element, it can be directly connected to the other element or intervening elements may also be present. The terms "vertical," "horizontal," "upper," "lower," "left," "right," and the like as used herein, if any, are for descriptive purposes only and do not represent a unique embodiment.

In the description of the present specification, the descriptions of the terms "one embodiment," "other implementation," and the like, mean that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the present application. In this specification, schematic descriptions of the above terms do not necessarily refer to the same embodiment or example. Unless defined otherwise, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this application belongs. The terminology used herein in the description of the application is for the purpose of describing particular embodiments only and is not intended to be limiting of the application.

Claims (10)

1. A water level detection apparatus for detecting a water level of a water tank, the water level detection apparatus comprising:

The detection box is internally provided with a limit part, the detection box is provided with a detection end and an assembly end which are mutually far away along the length extending direction, the assembly end is provided with an assembly port, and the detection end is used for extending into the water tank;

The circuit board is inserted into the detection box along the assembly port; and

The sensor electrodes are arranged on the circuit board and are electrically connected with the circuit board, the sensor electrodes are arranged between the circuit board and the inner peripheral surface of the detection box and are arranged at intervals along the length extending direction, and the limiting parts are abutted to the circuit board so that the sensor electrodes are attached to the inner peripheral surface of the detection box.

2. The water level detection device according to claim 1, wherein the limit portion includes a limit rib abutting against a side of the circuit board facing away from the sensor electrode so as to make the sensor electrode adhere to an inner peripheral surface of the detection case;

And/or, the limiting part comprises a limiting groove, the circuit board is at least partially inserted into the limiting groove, and the groove wall of the limiting groove is attached to the circuit board, so that the sensor electrode on the circuit board is attached to the inner peripheral surface of the detection box.

3. The water level detection device according to claim 1, further comprising a sealing member provided to the detection case, the sealing member covering at least the fitting opening to seal the circuit board and the sensor electrode within the detection case.

4. A water level detection apparatus according to claim 3, wherein the sealing member is a sealant poured into the detection cartridge from the fitting port.

5. A toilet core, characterized by comprising a base and the water level detection device according to any one of claims 1 to 4, wherein the base is used for being covered above a water tank of a toilet, a detection hole is formed in the base, a detection box of the water level detection device penetrates through the detection hole and is arranged on the base, and a detection end of the detection box extends into the water tank through the detection hole.

6. The toilet core according to claim 5, wherein the water level detection device further comprises a sealing ring sleeved on the outer peripheral surface of the detection box, and the outer peripheral surface of the detection box is in sealing abutting connection with the hole wall of the detection hole through the sealing ring.

7. The toilet core according to claim 6, wherein a side of the base facing the water tank is convexly provided with a surrounding rib, and the surrounding rib surrounds the detection box along the circumferential direction of the detection box.

8. The toilet core according to claim 7, wherein an inner peripheral surface of the bead is spaced from an outer peripheral surface of the cartridge.

9. The toilet core according to claim 7, wherein the sidewall of the rib is provided with a vent groove, the vent groove extends along the length extension direction of the detection box, and the vent groove is at least partially located above the liquid level in the water tank.

10. A toilet bowl, comprising a toilet bowl seat, a water tank and a toilet bowl movement according to any one of claims 5 to 9, wherein the water tank is provided on the toilet bowl seat and the base cover is provided above the water tank.