Liquid supply device and intelligent closestool

Abstract

The utility model relates to the technical field of intelligent closestools, in particular to a liquid supply device and an intelligent closestool. The liquid supply device comprises a box body, a liquid pump, a liquid level sensor and a control unit; the box body is provided with a first accommodating cavity; the liquid pump is arranged in the box body, communicates with the first containing cavity and is used for pumping out liquid in the first containing cavity; the liquid level sensor is arranged in the box body, at least part of the liquid level sensor is located in the first containing cavity, and the liquid level sensor is used for detecting liquid level change data in the first containing cavity; the control unit is electrically connected with the liquid level sensor and the liquid pump and used for adjusting the output power of the liquid pump according to the liquid level change data. Through the mode, the output power of the liquid pump can be increased when the efficiency of the liquid pump is attenuated, and the problem that the liquid supply flow of the liquid supply device is reduced is solved; and when the efficiency of the liquid pump is too high, the output power of the liquid pump can be reduced, and the problem that the liquid supply flow is too large is solved.

Description

Technical Field

[0001] This application relates to the field of smart toilet technology, and more particularly to a liquid supply device and a smart toilet. Background Technology

[0002] Smart toilets are a hot topic in the bathroom industry, replacing toilet paper with water washing and sparking a bathroom revolution. Technology, convenience, and hygiene represent the future trend of bathroom development. Smart toilets use water flow for washing, and the size, direction, and force of the water flow, as well as the water temperature, can be adjusted. A smart toilet includes a liquid dispensing device and a liquid supply device. The supply device provides a stable liquid output to the dispensing device, while the dispensing device discharges the liquid and controls its temperature and location for effective washing.

[0003] In the process of developing this application, the inventors discovered that: liquid supply devices typically pump liquid using diaphragm pumps or gear pumps. Diaphragm pumps and gear pumps experience efficiency degradation after prolonged use, leading to a decrease in the pumping efficiency of the liquid supply device and a reduction in the liquid supply flow rate. This reduced flow rate deteriorates the cleaning effect of the liquid outlet device and also causes the temperature of the liquid exiting the device to rise, posing a risk of scalding the user. Utility Model Content

[0004] The embodiments of this application aim to provide a liquid supply device and a smart toilet, so as to at least improve the problem of reduced liquid supply flow rate of the liquid supply device.

[0005] In order to solve the above-mentioned technical problems, the embodiments of this application adopt the following technical solutions:

[0006] In a first aspect, embodiments of this application provide a liquid supply device, which includes a housing, a liquid pump, a liquid level sensor, and a control unit; the housing is provided with a first accommodating cavity; the liquid pump is disposed in the housing and communicates with the first accommodating cavity, and is used to pump liquid out of the first accommodating cavity; the liquid level sensor is disposed in the housing and at least partially located in the first accommodating cavity, and is used to detect liquid level change data in the first accommodating cavity; the control unit is electrically connected to the liquid level sensor and the liquid pump, and is used to adjust the output power of the liquid pump according to the liquid level change data.

[0007] In some embodiments, the housing includes a first housing shell and a first housing cover; the first housing shell is provided with a first groove; the first housing cover is disposed at the opening of the first groove, and the first housing cover and the first housing shell surround the first groove to form the first receiving cavity; the first housing cover is provided with an installation port, and the liquid level sensor is disposed on the first housing cover, with one end of the liquid level sensor extending into the first receiving cavity from the installation port.

[0008] In some embodiments, the first tank cover is provided with a second groove, and the mounting port communicates with the second groove; the liquid level sensor includes a sensor body and a mounting flange, one end of the sensor body is connected to the mounting flange, and the mounting flange is disposed in the second groove.

[0009] In some embodiments, the box body further includes a second box shell and a second box cover; the second box shell is disposed on the side of the first box cover away from the first box shell, and the second box shell is provided with a third groove; the second box cover is disposed on the opening of the third groove, and the second box cover and the second box shell surround the third groove to form a second receiving cavity, and the second receiving cavity communicates with the first receiving cavity.

[0010] In some embodiments, the second housing is provided with an overflow port and an overflow tray, the overflow tray being located between the overflow port and the first housing cover, the overflow tray being used to collect liquid flowing out of the overflow port.

[0011] In some embodiments, the second housing and the first housing cover are an integral structure.

[0012] In some embodiments, the housing has a recess; the recess connects the first accommodating cavity to the liquid pump; and / or, the recess has a drain port, and the housing further includes a sealing plug, the sealing plug being detachably installed on the drain port, the sealing plug being used to seal or release the drain port.

[0013] In some embodiments, a recess is provided on the outer side of the housing, and the liquid pump is disposed in the recess.

[0014] In some embodiments, the liquid level sensor includes a rod and a ring, the ring being slidably fitted onto the rod, the ring being used to slide along the rod under the buoyancy of the liquid in the first accommodating cavity, and the rod being used to detect the position of the ring relative to the rod, thereby detecting the liquid level in the first accommodating cavity.

[0015] Secondly, embodiments of this application provide a smart toilet, the smart toilet including the liquid supply device as described in any of the preceding claims.

[0016] The liquid supply device and smart toilet of this application embodiment detect liquid level changes in the first accommodating cavity using a liquid level sensor, and adjust the output power of the liquid pump according to the liquid level change data via a control unit. This allows for an increase in the output power of the liquid pump when its efficiency decreases, thus mitigating the problem of reduced liquid supply flow. Furthermore, it can reduce the output power of the liquid pump when its efficiency is too high, thereby mitigating the problem of excessive liquid supply flow.

[0017] The above description is merely an overview of the technical solution of this application. In order to better understand the technical means of this application and to implement it in accordance with the contents of the specification, and to make the above and other objects, features and advantages of this application more obvious and understandable, specific embodiments of this application are given below. Attached Figure Description

[0018] One or more embodiments are illustrated by way of example with reference to the accompanying drawings. These illustrations do not constitute a limitation on the embodiments. Elements having the same reference numerals in the drawings are denoted as similar elements. Unless otherwise stated, the figures in the drawings are not to be limited by scale.

[0019] Figure 1 This is a schematic diagram of the liquid supply device according to an embodiment of this application;

[0020] Figure 2 This is an exploded view of the liquid supply device according to an embodiment of this application;

[0021] Figure 3 This is another exploded view of the liquid supply device according to an embodiment of this application;

[0022] Figure 4 This is a cross-sectional view of the liquid supply device according to an embodiment of this application.

[0023] The reference numerals in the detailed embodiments are as follows:

[0024] 100. Liquid supply device;

[0025] 1. Box body; 11. First box shell; 111. First groove; 112. Liquid outlet connector; 113. Recess; 1131. Drain outlet; 114. Recess;

[0026] 12. First box cover; 121. Mounting port; 122. Second groove;

[0027] 13. Sealing plug;

[0028] 14. Second casing; 141. Third recess; 142. Overflow port; 143. Overflow tray;

[0029] 15. Second tank cover; 151. Liquid inlet connector;

[0030] 1a. First receiving cavity; 1b. Second receiving cavity;

[0031] 2. Liquid pump;

[0032] 3. Liquid level sensor; 31. Sensor body; 311. Rod; 312. Ring; 32. Mounting flange. Detailed Implementation

[0033] To facilitate understanding of this application, the following description, in conjunction with the accompanying drawings and specific embodiments, will provide a more detailed account. It should be understood that the specific embodiments described herein are merely illustrative and not intended to limit the scope of this application. It should be noted that when an element is described as being "fixed to" another element, it can be directly on the other element, or one or more intermediate elements may exist between them. When an element is described as being "connected to" another element, it can be directly connected to the other element, or one or more intermediate elements may exist between them.

[0034] Unless otherwise defined, 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 pertains; the terminology used herein is for the purpose of describing particular embodiments only and is not intended to limit the application; the terms “comprising” and “having”, and any variations thereof, in the specification, claims, and foregoing description of the drawings are intended to cover non-exclusive inclusion.

[0035] In the description of the embodiments of this application, the technical terms "center," "longitudinal," "lateral," "length," "width," "thickness," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," "clockwise," "counterclockwise," "axial," "radial," and "circumferential" indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing the embodiments of this application and simplifying the description, and are not intended to indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on the embodiments of this application.

[0036] In the description of the embodiments of this application, the terms "first," "second," etc., are used to define components merely for the purpose of distinguishing the corresponding components. Unless otherwise stated, these terms have no special meaning and therefore should not be construed as limiting the scope of protection of this application. In the description of the embodiments of this application, "multiple" means two or more, unless otherwise explicitly defined.

[0037] Unless otherwise defined, all technical and scientific terms used in this specification have the same meaning as commonly understood by one of ordinary skill in the art to which this application belongs. The terminology used in this specification is for the purpose of describing particular embodiments only and is not intended to limit the scope of this application. The term "and / or" as used in this specification includes any and all combinations of one or more of the associated listed items.

[0038] Furthermore, the technical features involved in the different embodiments of this application described below can be combined with each other as long as they do not conflict with each other.

[0039] Please see Figure 1This application provides a liquid supply device 100. The liquid supply device 100 is used to supply liquid, such as providing cleaning water to the liquid dispensing device of a smart toilet. The liquid dispensing device includes a cleaning nozzle and / or a sitz spray nozzle; the cleaning nozzle is used to clean the buttocks, and the sitz spray nozzle is used to clean the toilet bowl.

[0040] Please see Figures 1 to 3 The liquid supply device 100 includes a housing 1, a liquid pump 2, a liquid level sensor 3, and a control unit (not shown). The housing 1 is used to contain liquid, the liquid pump 2 is used to pump out the liquid from the housing 1, the liquid level sensor 3 is used to detect the liquid level in the housing 1, and the control unit is used to adjust the output power of the liquid pump 2.

[0041] The aforementioned housing 1 includes a first receiving cavity 1a for containing liquid. For example, please refer to [link to relevant documentation]. Figures 1 to 3 The box body 1 includes a first box shell 11 and a first box cover 12; the first box shell 11 is provided with a first groove 111; the first box cover 12 is placed over the opening of the first groove 111, and the first box cover 12 and the first box shell 11 enclose the first groove 111 to form a first receiving cavity 1a. The first receiving cavity 1a is formed by the first box shell 11 and the first box cover 12, which helps to reduce the manufacturing difficulty and manufacturing cost of the box body 1.

[0042] In some embodiments, please refer to Figure 2 and Figure 3 The first housing 11 is rectangular, the first groove 111 is rectangular, and therefore the first receiving cavity 1a is rectangular. It can be understood that the opening of the first groove 111 is rectangular, and the first lid 12 is adapted to it, that is, the first lid 12 is rectangular.

[0043] In some embodiments, the first lid 12 is sealed to the first shell 11. For example, the first lid 12 is bonded to the first shell 11, or a sealing ring is provided between them, to improve the problem of liquid leakage from the gap between the first lid 12 and the first shell 11 and enhance the sealing performance of the first accommodating cavity 1a.

[0044] For the liquid pump 2 mentioned above, please refer to Figures 1 to 3 A liquid pump 2 is located in the housing 1 and is connected to the first accommodating cavity 1a. The liquid pump 2 is used to pump out the liquid from the first accommodating cavity 1a. For example, the first housing 11 is provided with a liquid outlet connector 112, which is connected to the first accommodating cavity 1a and also to the liquid pump 2. Thus, the liquid pump 2 can draw liquid from the first accommodating cavity 1a and pump it out. It is understood that the liquid pump 2 has an inlet and an outlet; the inlet is connected to the outlet connector 112, and the outlet is connected to the liquid outlet device.

[0045] In some embodiments, please refer to Figure 2 and Figure 3 The housing 1 has a recess 113; the recess 113 connects the first accommodating cavity 1a to the liquid pump 2. The recess 113 is the portion recessed in the direction of gravity. In this embodiment, the recess 113 is the portion recessed in the direction away from the first housing cover 12. Exemplarily, the first housing 11 has a recess 113 on the side away from the first housing cover 12. The recess 113 is used to define the inner surface of the first accommodating cavity 1a as recessed in the direction away from the first housing cover 12. The liquid outlet connector 112 is located in the recess 113 and communicates with the inner surface of the recess 113. Thus, the liquid outlet connector 112 communicates with the low point of the first accommodating cavity 1a, which is beneficial for emptying the liquid in the first accommodating cavity 1a.

[0046] In some embodiments, please refer to Figure 2 and Figure 3 The outer surface of the recess 113, which is opposite to the inner surface, protrudes in a direction away from the first cover 12. That is, the recess 113 is bowl-shaped, which helps to increase the wall thickness of the recess 113 and improve the problem that the recess 113 is easily damaged due to its thin wall thickness.

[0047] In some embodiments, please refer to Figure 2 and Figure 3 The recess 113 is a cylindrical body, one end of which is connected to the first groove 111 inside the first box shell 11, and the other end extends in a direction away from the first box cover 12.

[0048] In some embodiments, please refer to Figure 2 The recess 113 is provided with a drain port 1131, and the housing 1 also includes a sealing plug 13, which is detachably installed on the drain port 1131. The sealing plug 13 is used to seal or release the drain port 1131. By removing the sealing plug 13, the drain port 1131 can be released, thereby emptying the liquid in the first receiving cavity 1a, which facilitates cleaning the first receiving cavity 1a.

[0049] In some embodiments, please refer to Figure 2 The drain port 1131 is located on the side of the liquid outlet connector 112 away from the first tank cover 12, that is, the drain port 1131 is lower than the liquid outlet connector 112. This allows impurities in the liquid to accumulate in the depression 113, and the impurities are not easily discharged from the liquid outlet connector 112. Furthermore, impurities can be discharged when the sealing plug 13 is removed, thus improving the problem of impurities clogging the liquid outlet device caused by discharge from the liquid outlet connector 112.

[0050] In some embodiments, please refer to Figure 2The outer side of the housing 1 has a recess 114, and the liquid pump 2 is disposed in the recess 114. Exemplarily, the outer side of the first housing 11 has a recess 114, which is recessed towards the inner side of the first housing 11. The recess 114 is adapted to the liquid pump 2, and the liquid pump 2 is disposed in the recess 114. This helps to shield the liquid pump 2 and reduce the height of the liquid pump 2 protruding from the housing 1, making the liquid supply device 100 more compact. It also helps to protect the liquid pump 2 and extend its lifespan.

[0051] For the liquid level sensor 3 mentioned above, please refer to Figures 2 to 4 A liquid level sensor 3 is disposed in the housing 1 and at least partially located within the first accommodating cavity 1a. The liquid level sensor 3 is used to detect liquid level changes within the first accommodating cavity 1a. Exemplarily, one end of the liquid level sensor 3 is mounted on the first housing cover 12, and the other end extends towards the recess 113, so that the liquid level sensor 3 always intersects with the liquid surface within the first accommodating cavity 1a, enabling the detection of liquid level changes. Liquid level change data can be obtained by recording the liquid level height at least two moments. The number of moments can be any value greater than or equal to two; the larger the number, the higher the accuracy of the liquid level change data. The moments can be determined based on the liquid level height. For example, when the liquid level height is a specific value, such as 20%, 50%, or 80% of the maximum liquid level height within the first accommodating cavity 1a, recording the liquid level height and the moment yields liquid level change data containing three liquid level heights, with each liquid level height corresponding to a specific moment.

[0052] The control unit described above is electrically connected to the liquid level sensor 3 and the liquid pump 2. The control unit adjusts the output power of the liquid pump 2 based on liquid level change data. It should be noted that the adjustment of the liquid pump 2's output power based on liquid level change data is a concept already present in existing technologies. Therefore, the improvement in this embodiment lies in the electrical connection between the control unit and the liquid level sensor 3 and the liquid pump 2; the improvement in this embodiment is structural rather than methodological. In some embodiments, the control unit is located at the liquid level sensor 3. In some embodiments, the control unit is a controller for a smart toilet.

[0053] For example, after the liquid pump 2 starts working, the times when the liquid level in the first accommodating cavity 1a is at its maximum height and the times when it is at its minimum height are recorded, the time difference is calculated, and the ratio of the time difference to the preset duration is calculated based on the preset duration. The output power of the liquid pump 2 during this operation is multiplied by this ratio to obtain the output power of the liquid pump 2 for the next operation, thereby correcting the output power of the liquid pump 2. The preset duration is the time taken for the liquid level in the first accommodating cavity 1a to decrease from its maximum height to its minimum height under ideal conditions when the liquid pump 2 pumps the liquid out of the first accommodating cavity 1a.

[0054] When the ratio of the time difference to the preset duration is greater than 1, that is, the efficiency of the liquid pump 2 decreases. At this time, the output power of the liquid pump 2 during the current operation is multiplied by the ratio to obtain the output power of the liquid pump 2 for the next operation. This can increase the output power of the liquid pump 2 and improve the problem of reduced liquid supply flow of the liquid supply device 100.

[0055] When the ratio of the time difference to the preset duration is less than 1, that is, the efficiency of the liquid pump 2 is too high, the output power of the liquid pump 2 during this operation is multiplied by this ratio to obtain the output power of the liquid pump 2 for the next operation. This can reduce the output power of the liquid pump 2 and improve the problem of excessive liquid supply flow.

[0056] In some embodiments, the liquid level change data includes multiple time periods, and the control unit is used to adjust the output power of the liquid pump 2 in another time period based on the liquid level change data in one time period. For example, the liquid level change data includes two time periods, a first time period and a second time period; the separation time between the first time period and the second time period is the moment when the liquid level in the first accommodating cavity 1a reaches 50% of its maximum height; after the liquid pump 2 starts working, the moment when the liquid level in the first accommodating cavity 1a reaches its maximum height and the moment when the liquid level reaches 50% of its maximum height are recorded, the time difference of the first time period is calculated, and the output power of the liquid pump 2 in the first time period is multiplied by the ratio of the time difference in the first time period to the preset duration of the first time period to obtain the output power of the liquid pump 2 in the second time period, thereby correcting the output power of the liquid pump 2 in the second time period. Therefore, the output power of the liquid pump 2 can be corrected during a single operation of the liquid pump 2, without having to wait until the next operation of the liquid pump 2. It is understood that this method allows for real-time correction of the output power of the liquid pump 2.

[0057] It should be noted that the liquid dispensing device typically heats the liquid to enhance the user experience. When the liquid supply flow rate of the liquid supply device 100 decreases or increases excessively, the liquid temperature may become too high or too low, affecting the user experience. In this embodiment, by adjusting the output power of the liquid pump 2, the problems of decreased or excessive liquid supply flow rate can be improved, as can the problem of excessively high or low liquid temperature flowing out of the liquid dispensing device.

[0058] In some embodiments, please refer to Figures 2 to 4The first cover 12 has a mounting port 121, and the liquid level sensor 3 is mounted on the first cover 12. One end of the liquid level sensor 3 extends into the first receiving cavity 1a through the mounting port 121. The other end of the liquid level sensor 3 extends out of the first receiving cavity 1a from the mounting port 121, facilitating the connection of an external cable to the liquid level sensor 3. Furthermore, the liquid level sensor 3 is mounted on the first cover 12 in a direction passing through the mounting port 121 and towards the first receiving cavity 1a. Therefore, when maintaining the liquid level sensor 3, it can be directly pulled out from the mounting port 121 without disassembling the first cover 12, simplifying maintenance of the liquid level sensor 3.

[0059] In some embodiments, please refer to Figure 3 and Figure 4 The first cover 12 has a second groove 122, and the mounting opening 121 communicates with the second groove 122. The liquid level sensor 3 includes a sensor body 31 and a mounting flange 32. One end of the sensor body 31 is connected to the mounting flange 32, which is disposed in the second groove 122. By placing the mounting flange 32 in the second groove 122, the depth to which the liquid level sensor 3 penetrates the mounting opening 121 can be limited, thereby improving the installation accuracy of the liquid level sensor 3. Furthermore, the mounting flange 32 abuts against the bottom of the second groove 122, preventing the liquid level sensor 3 from falling into the first receiving cavity 1a, thus improving the problem that the liquid level sensor 3 is prone to falling into the first receiving cavity 1a during installation.

[0060] In some embodiments, please refer to Figure 3 and Figure 4 The second groove 122 is adapted to the mounting flange 32. For example, if the shape and size of the second groove 122 are the same as those of the mounting flange 32 along the central axis of the mounting opening 121, then when the mounting flange 32 is installed in the second groove 122, it can be limited in a direction perpendicular to the central axis of the mounting opening 121. The mounting flange 32 and the bottom of the second groove 122 can be fixedly connected by screws; a sealing ring can be provided between the mounting flange 32 and the bottom of the second groove 122 to enhance the sealing effect on the mounting opening 121.

[0061] In some embodiments, please refer to Figures 2 to 4 The liquid level sensor 3 includes a rod portion 311 and a ring portion 312. The ring portion 312 is slidably sleeved on the rod portion 311. The ring portion 312 is used to slide along the rod portion 311 under the buoyancy of the liquid in the first accommodating cavity 1a. The rod portion 311 is used to detect the sliding position of the ring portion 312 relative to the rod portion 311, thereby detecting the liquid level in the first accommodating cavity 1a. Exemplarily, the sensor body 31 includes a rod portion 311 and a ring portion 312. The ring portion 312 is magnetic, and the rod portion 311 is used to detect changes in the magnetic field. Therefore, when the ring portion 312 slides along the rod portion 311, the rod portion 311 can detect the position of the ring portion 312 relative to the rod portion 311.

[0062] In some embodiments, the rod 311 is provided with at least two Hall sensors spaced apart along its length, and the position of the ring 312 relative to the rod 311 can be calculated by the magnetic field strength detected by the at least two Hall sensors.

[0063] In some embodiments, the ring portion 312 includes a magnetic element, such as a neodymium magnet, a natural magnet, etc., thereby the ring portion 312 is magnetic.

[0064] In some embodiments, the ring portion 312 is made of plastic and has a sealed cavity inside, so that the ring portion 312 can float on the surface of the liquid in the first accommodating cavity 1a and slide along the rod portion 311 under the buoyancy of the liquid in the first accommodating cavity 1a.

[0065] In some other embodiments, the liquid level sensor 3 includes a first liquid sensor and a second liquid sensor, which are installed at different heights within the first accommodating cavity 1a. The first and second liquid sensors are used to detect whether they are submerged in liquid, thereby detecting the height of the liquid level within the first accommodating cavity 1a. Exemplarily, the first liquid sensor is higher than the second liquid sensor; when the first liquid sensor is submerged, the liquid level is higher than the first liquid sensor; when the second liquid sensor is submerged and the first liquid sensor is not submerged, the liquid level is between the first and second liquid sensors; when the second liquid sensor is not submerged, the liquid level is lower than the second liquid sensor.

[0066] In some embodiments, please refer to Figures 2 to 4 The housing 1 also includes a second housing shell 14 and a second housing cover 15. The second housing shell 14 is disposed on the side of the first housing cover 12 away from the first housing shell 11, and the second housing shell 14 has a third groove 141. The second housing cover 15 is placed over the opening of the third groove 141, and the second housing cover 15 and the second housing shell 14 together form a second receiving cavity 1b at the third groove 141. The second receiving cavity 1b is formed by the second housing shell 14 and the second housing cover 15, which helps to reduce the manufacturing difficulty and manufacturing cost of the housing 1.

[0067] The second receiving cavity 1b is connected to the first receiving cavity 1a. Exemplarily, both the second housing 14 and the first cover 12 are provided with through holes, which are respectively connected to the second receiving cavity 1b and the first receiving cavity 1a, and are interconnected. When injecting liquid into the first receiving cavity 1a, the liquid can be injected into the second receiving cavity 1b instead of directly into the first receiving cavity 1a, and then flow into the first receiving cavity 1a, thus reducing fluctuations in the liquid level within the first receiving cavity 1a.

[0068] In some embodiments, the second receiving cavity 1b is smaller than the first receiving cavity 1a. It is understood that the noise generated when liquid is injected into the second receiving cavity 1b is less than the noise generated when liquid is injected into the first receiving cavity 1a. In the above embodiments, liquid is injected into the second receiving cavity 1b to indirectly inject liquid into the first receiving cavity 1a, thus reducing the noise generated when liquid is injected into the housing 1.

[0069] In some embodiments, the second housing 14 and the first housing cover 12 are integrally formed. For example, the second housing 14 and the first housing cover 12 are integrally injection molded, which helps to increase the connection strength between the second housing 14 and the first housing cover 12, and enhances the sealing effect at the connection between the second accommodating cavity 1b and the first accommodating cavity 1a, so that the liquid in the first accommodating cavity 1a can overflow into the second accommodating cavity 1b, increasing the liquid-holding capacity of the housing 1.

[0070] In some embodiments, please refer to Figure 2 and Figure 3 The second housing 14 is rectangular, the third groove 141 is rectangular, and therefore the second receiving cavity 1b is rectangular. It can be understood that the opening of the third groove 141 is rectangular, and the second housing cover 15 is adapted to it, that is, the second housing cover 15 is rectangular.

[0071] In some embodiments, the second cover 15 and the second shell 14 are detachably connected. For example, the second cover 15 is provided with a locking hole and the second shell 14 is provided with a locking hook, so that the second cover 15 can be snapped together and then detached, which facilitates the assembly and disassembly of the second cover 15.

[0072] In some embodiments, please refer to Figure 1 and Figure 3 The second housing 14 is provided with an overflow port 142. For example, a through hole is provided on the side wall of the second housing 14 to allow liquid to drain. By providing the overflow port 142, the problem of the housing 1 bursting due to excessive liquid in the first and second accommodating cavities 1a and 1b can be improved. In addition, the overflow port 142 is also used to discharge the gas in the first and second accommodating cavities 1a and 1b when liquid is injected into the second accommodating cavities 1b, so as to improve the problem of excessively high gas pressure in the first and second accommodating cavities 1a and 1b, resulting in greater resistance when liquid is injected into the first and second accommodating cavities 1a and 1b; the overflow port 142 is also used to draw in the gas outside the first and second accommodating cavities 1a and 1b when the liquid pump 2 pumps out the liquid in the first and second accommodating cavities 1a and 1b, so as to improve the problem of excessively low gas pressure in the first and second accommodating cavities 1a and 1b, resulting in greater resistance when pumping out the liquid in the first and second accommodating cavities 1a and 1b.

[0073] In some embodiments, please refer to Figure 1 and Figure 3 The second housing 14 is provided with an overflow tray 143, which is located between the overflow port 142 and the first housing cover 12. The overflow tray 143 is used to collect the liquid flowing out of the overflow port 142. By providing the overflow tray 143, the liquid flowing out of the overflow port 142 is guided to a preset drainage position, such as to a sewer, thereby improving the problem of liquid dripping onto the ground or accumulating in the liquid supply device 100.

[0074] In some embodiments, please refer to Figure 1 and Figure 3 The second cover 15 is provided with a liquid inlet connector 151, which is connected to the second accommodating cavity 1b and is used to connect a pipe. For example, the liquid inlet connector 151 is connected to a water inlet pipe to supply water to the second accommodating cavity 1b.

[0075] Based on the same inventive concept, this application also provides a smart toilet (not shown), which includes a liquid supply device 100. The smart toilet possesses the structural features and beneficial effects of the liquid supply device 100, which will not be elaborated here. In some embodiments, the smart toilet includes a liquid dispensing device (not shown), the liquid supply device 100 being used to supply liquid to the dispensing device, the dispensing device including a cleaning nozzle and / or a seat-washing nozzle, the cleaning nozzle being used to clean the buttocks, and the seat-washing nozzle being used to clean the toilet bowl.

[0076] The liquid supply device 100 and smart toilet of this application embodiment detect liquid level changes in the first accommodating cavity 1a using a liquid level sensor 3, and adjust the output power of the liquid pump 2 according to the liquid level change data via a control unit. This allows for an increase in the output power of the liquid pump 2 when its efficiency decreases, thus improving the problem of reduced liquid supply flow rate. Furthermore, it can reduce the output power of the liquid pump 2 when its efficiency is too high, thereby improving the problem of excessive liquid supply flow rate.

[0077] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of this application, and not to limit them; under the concept of this application, the technical features of the above embodiments or different embodiments can also be combined, the steps can be implemented in any order, and there are many other variations of different aspects of this application as described above, which are not provided in detail for the sake of brevity; although this application has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that they can still modify the technical solutions described in the foregoing embodiments, or make equivalent substitutions for some of the technical features; and these modifications or substitutions do not cause the essence of the corresponding technical solutions to deviate from the scope of the technical solutions of the embodiments of this application.

Claims

1. A liquid supply device characterized by comprising: The supply liquid device comprises: a box body provided with a first accommodating cavity; a liquid pump arranged in the box body and communicated with the first accommodating cavity, the liquid pump being used for pumping liquid in the first accommodating cavity out; a liquid level sensor arranged in the box body and at least partially located in the first accommodating cavity, the liquid level sensor being used for detecting liquid level change data in the first accommodating cavity; a control unit electrically connected with the liquid level sensor and the liquid pump, the control unit being used for adjusting output power of the liquid pump according to the liquid level change data.

2. The liquid supply apparatus according to claim 1, wherein The box body comprises: a first box shell provided with a first groove; a first box cover arranged at an opening of the first groove, the first box cover and the first box shell surrounding the first groove to form the first accommodating cavity, the first box cover being provided with a mounting port, the liquid level sensor being arranged in the first box cover, one end of the liquid level sensor extending into the first accommodating cavity from the mounting port.

3. The supply liquid device according to claim 2, wherein: the first box cover is provided with a second groove, the mounting port being communicated with the second groove; the liquid level sensor comprises a sensor main body and a mounting flange, one end of the sensor main body being connected with the mounting flange, the mounting flange being arranged in the second groove.

4. The liquid supply apparatus according to claim 2, wherein The box body further comprises: a second box shell arranged on a side of the first box cover away from the first box shell, the second box shell being provided with a third groove; a second box cover arranged at an opening of the third groove, the second box cover and the second box shell surrounding the third groove to form a second accommodating cavity, the second accommodating cavity being communicated with the first accommodating cavity.

5. The supply liquid device according to claim 4, wherein: the second box shell is provided with an overflow port and an overflow disc, the overflow disc being located between the overflow port and the first box cover, the overflow disc being used for receiving liquid flowing out of the overflow port.

6. The supply liquid device according to claim 4, wherein: the second box shell and the first box cover are an integral structure.

7. The liquid supply apparatus according to claim 1, wherein The box body is provided with a depression; the depression is communicated with the first accommodating cavity and the liquid pump; and / or the depression is provided with a liquid discharge port, the box body further comprising a sealing plug, the sealing plug being detachably arranged in the liquid discharge port, the sealing plug being used for sealing or releasing the liquid discharge port.

8. The supply liquid device according to claim 1, wherein: the box body is provided with a recess on the outside, the liquid pump being arranged in the recess.

9. The supply liquid device according to any one of claims 1 to 8, wherein: the liquid level sensor comprises a rod portion and a ring portion, the ring portion being slidably sleeved on the rod portion, the ring portion being used for sliding along the rod portion under the buoyancy of liquid in the first accommodating cavity, the rod portion being used for detecting the position of the ring portion relative to the rod portion, thereby detecting the liquid level in the first accommodating cavity.

10. A smart toilet, characterized by comprising: The supply liquid device comprises the supply liquid device according to any one of claims 1 to 9.

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