Water dispenser for pets

Abstract

The utility model relates to the technical field of water dispensers, and provides a pet water dispenser which comprises a water tank and a base. The water tank comprises a low liquid level indicating part and a conductive part. The base comprises a control piece and a probe. The control piece is contained in the base, one end of the probe is electrically connected with the control piece, and the other end of the probe extends out of the base and is exposed relative to the base. And the low liquid level indicating part is formed by sinking the bottom of the water tank into the water tank. The conductive part is contained in the low liquid level indicating part and located outside the water tank. When the water tank is mounted on the base, the conductive part is in contact with the probe; the control piece identifies the liquid level in the water tank according to the conductive part and the probe.

Description

Technical Field

[0001] The present application relates to the technical field of water dispensers, and in particular to a pet water dispenser with non-contact liquid level detection. Background Art

[0002] With the improvement of people's living standards, it is becoming more and more common to keep pets such as cats and dogs at home, and pet drinking water machines have also entered people's lives. At the same time, because pets such as cats and dogs like to drink running water, pet circulating drinking machines are a type of pet drinking equipment that has gradually become popular.

[0003] The pet circulating water dispenser needs to monitor the water level in the water tank in real time, especially when the water level is too low to make the water flow, so as to remind the user that the water level in the pet circulating water dispenser is insufficient. In the prior art, the water level in the water tank is usually detected by contact water level detection. For example, a suspended structure or a metal probe is set in the water tank and cooperates with sensors and peripheral circuits to realize water level detection; the above structure uses more components, and more components require a large number of circuits to be laid, which increases the cost. In addition, because the entire suspended structure or metal probe will breed impurities such as scale when in contact with water for a long time, thereby polluting the water quality of drinking water, and there is a risk of leakage in the pet circulating water dispenser. Utility Model Content

[0004] The main purpose of this application is to provide a pet drinking fountain, aiming to solve the problem of how to improve safety performance and reduce production costs when detecting water level in pet drinking fountains in the prior art.

[0005] A pet drinking fountain, comprising:

[0006] The base includes a control unit and a probe; the control unit is accommodated in the base, one end of the probe is electrically connected to the control unit, and the other end of the probe extends out of the base and is exposed relative to the base;

[0007] The water tank comprises a low liquid level indicator and a conductive part; the low liquid level indicator is formed by the bottom of the water tank being recessed into the water tank; the conductive part is accommodated in the low liquid level indicator and is located outside the water tank;

[0008] When the water tank is installed on the base, the conductive part contacts the probe; the control component identifies the liquid level in the water tank based on the conductive part and the probe.

[0009] In some embodiments, the water tank also includes a pumping structure; the pumping structure is provided with a water inlet; a low liquid level indicator is provided with a warning line; the horizontal plane where the warning line is located is not lower than the horizontal plane where the lower edge of the water inlet is located; the control component identifies whether the liquid level in the water tank is lower than the warning line with the cooperation of the conductive part and the probe.

[0010] In some embodiments, the low liquid level indicator has a distal end and a bottom end, the diameter of the distal end is smaller than the diameter of the bottom end, and the distal end and the bottom end form a step; the distal end is arranged away from the bottom of the water tank, and the distal end is used to embed the conductive part into the low liquid level indicator; the step surface of the low liquid level indicator serves as a warning line.

[0011] In some embodiments, the water tank is detachably mounted on the base; when the water tank is not mounted on the base, the control unit detects whether the water tank is mounted on the base through a probe.

[0012] In some embodiments, the control component includes a control circuit board and a sensing chip; the probe and the sensing chip are respectively disposed on the control circuit board, and the probe is directly electrically connected to the sensing chip.

[0013] In some embodiments, the water tank further includes a pumping structure and a drinking water tray; the base further includes a driving structure electrically connected to the control component; when the liquid level in the water tank is lower than the warning line and / or it is identified that the water tank is not installed on the base, the control component outputs a stop drive signal to control the driving structure to be in a stopped state, and the pumping structure does not perform a pumping operation; when the water tank is installed on the base and the liquid level in the water tank is higher than the warning line, the control component outputs a start signal to control the driving structure to be in a working state, and under the drive of the driving structure, the pumping structure pumps water out of the water tank and flows it to the drinking water tray.

[0014] In some embodiments, the pet drinking fountain further includes a sensing column; an indicator light is provided on the sensing column; the indicator light is electrically connected to the control component; when the liquid level in the water tank is lower than the warning line and / or the water tank is not installed on the base, the control component outputs an abnormal prompt signal to light up the indicator light.

[0015] In some embodiments, the conductive part and the probe constitute a sensing structure; the control component compares the capacitance value of the sensing structure with a warning threshold; when the capacitance value of the sensing structure is less than the warning threshold, the control component identifies that the liquid level in the water tank is lower than the warning line; when the capacitance value of the sensing structure is greater than or equal to the warning threshold, the control component identifies that the liquid level in the water tank is higher than the warning line.

[0016] In some embodiments, when the water tank is not installed on the base, the probe forms a sensing structure; the control component compares the capacitance value of the sensing structure with the in-place threshold; wherein the in-place threshold is less than the warning threshold; when the capacitance value of the sensing structure is less than the in-place threshold, the control component identifies that the water tank is not installed on the base.

[0017] In some embodiments, the pumping structure includes a magnetic fan blade portion and a guide portion; the driving structure includes a driving motor and a magnetic rotating portion; the driving motor is electrically connected to the control component, and the driving motor drives the magnetic rotating portion to rotate according to a start signal; the magnetic rotating portion and the magnetic fan blade portion magnetically cooperate to achieve rotation; when the magnetic fan blade portion rotates, the water in the water tank is pumped into the drinking tray through the guide portion.

[0018] The above pet water dispenser, by providing a conductive part located outside the water tank to cooperate with the probe in the base as a sensing structure, avoids the situation where the traditional capacitive sensor directly contacts the water compared to the prior art, can effectively prevent the water in the water tank from being polluted due to scale accumulation, and can ensure the stability of the sensing structure. The electrical connection between the probe and the control part reduces the complexity of a large number of circuit layouts; in addition, since the water tank and the base are electrically insulated, that is, there is no charged component inside the water tank, it can prevent the pet from being electrocuted when it contacts the water tank, thereby improving the safety of drinking water. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] In order to more clearly illustrate the embodiments of the present application or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only embodiments of the present application. For ordinary technicians in this field, other drawings can be obtained based on the provided drawings without paying any creative work.

[0020] Figure 1 This is a three-dimensional schematic diagram of a pet drinking fountain according to a preferred embodiment of the present application.

[0021] Figure 2 for Figure 1 Schematic diagram of the cross section of the pet drinking fountain along the II-II direction.

[0022] Figure 3 for Figure 2 An enlarged schematic diagram of the pet water dispenser at point A.

[0023] Figure 4 for Figure 1 Schematic diagram of the control components.

[0024] Figure 5 for Figure 1 A three-dimensional schematic diagram of the central control unit from another angle.

[0025] Main component symbols

[0026] Pet drinking fountain 1

[0027] Water tank 10

[0028] Base 20

[0029] Induction column 30

[0030] Water storage structure 11

[0031] Pumping structure 12

[0032] Water tray 13

[0033] Drain pan 14

[0034] Side wall 111

[0035] Bottom plate 112

[0036] Low liquid level indicator 113

[0037] Conductive portion 114

[0038] Water storage chamber 101

[0039] Bottom end 1131

[0040] Distal end 1132

[0041] Warning Line L

[0042] Pumping housing 121

[0043] Water Inlet 1212

[0044] Pumping chamber 104

[0045] Magnetic fan blade 123

[0046] Fan blade 1231

[0047] Magnetic transmission parts 1232

[0048] The guide part 124

[0049] Diversion cavity 105

[0050] Water storage area 131

[0051] Drain 132

[0052] Storage Section 141

[0053] Filter 142

[0054] Drain 143

[0055] Overflow port 144

[0056] Housing 21

[0057] Drive structure 22

[0058] Drive motor 221

[0059] Magnetic rotating part 222

[0060] Rotating parts 2221

[0061] Magnetic drive 2223

[0062] Control Structure 23

[0063] Probe 231

[0064] Control 232

[0065] Control circuit board 2320

[0066] First surface 2321

[0067] Second surface 2322

[0068] Sensor chip 233

[0069] Main control chip 234

[0070] Indicator light 31

[0071] The following specific implementation methods will further illustrate the present application in conjunction with the above-mentioned drawings. DETAILED DESCRIPTION

[0072] In order to enable those skilled in the art to better understand the solution of the present application, the technical solution in the embodiments of the present application will be clearly and completely described below in conjunction with the drawings in the embodiments of the present application. Obviously, the described embodiments are only part of the embodiments of the present application, not all of the embodiments. Based on the embodiments in the present application, all other embodiments obtained by ordinary technicians in this field without creative work should fall within the scope of protection of the present application.

[0073] In the description of the embodiments of the present application, when an element is considered to be "connected" to another element, it may be directly connected to another element or there may be a centrally arranged element at the same time. When an element is considered to be "set" to another element, it may be directly set on another element or there may be a centrally arranged element at the same time. In the present application, unless otherwise clearly specified and limited, the terms "installed", "connected", "connected", "fixed" and the like should be understood in a broad sense, for example, it may be a fixed connection, a detachable connection, or an integral connection; it may be a mechanical connection or an electrical connection; it may be directly connected, or it may be indirectly connected through an intermediate medium, or it may be the internal connection of two elements. For ordinary technicians in this field, the specific meanings of the above terms in the present application can be understood according to the specific circumstances. The directional descriptions in this embodiment, such as "upper", "lower", "top", "bottom", etc., are all referenced to the direction of the product in the actual use scenario.

[0074] It should be noted that in this application, "at least one" means one or more, and "more than one" means two or more than two. "And / or" describes the association relationship of associated objects, indicating that three relationships may exist. For example, A and / or B can mean: A exists alone, A and B exist at the same time, and B exists alone, where A and B can be singular or plural. The terms "first", "second", "third", "fourth", etc. (if any) in the specification, claims and drawings of this application are used to distinguish similar objects, rather than to describe a specific order or sequence.

[0075] In the embodiments of the present application, words such as "exemplary" or "for example" are used to indicate examples, illustrations or descriptions. Any embodiment or design described as "exemplary" or "for example" in the embodiments of the present application should not be interpreted as being more preferred or more advantageous than other embodiments or designs. Specifically, the use of words such as "exemplary" or "for example" is intended to present related concepts in a concrete way. The following embodiments and features in the embodiments may be combined with each other without conflict.

[0076] The specific implementation of the pet drinking fountain 1 of the present application is described below with reference to the accompanying drawings.

[0077] See also Figure 1 , which is a three-dimensional schematic diagram of a pet water dispenser 1 provided in an embodiment of the present application. The pet water dispenser 1 is placed on a bearing surface to store water and provide circulating drinking water. In other embodiments, the pet water dispenser 1 can also be used to store other liquids. In at least one embodiment of the present application, the bearing surface can be the ground, or the bottom of a table or cage. In other embodiments, it can also be configured on other surfaces with a bearing function according to different usage environments.

[0078] The pet water dispenser 1 includes a water tank 10 and a base 20. The water tank 10 is mounted on the base 20. In at least one embodiment of the present application, by detachably mounting the water tank 10 on the base 20, it is convenient for the user to change or fill the water in the water tank 10. At the same time, during the water change or water filling operation, liquid is prevented from flowing into the base 20, thereby preventing the electronic components in the base 20 from being soaked in liquid and damaged. In this way, the pet water dispenser 1 can be prevented from being unusable due to damage.

[0079] Please also read Figure 2 as well as Figure 3 , Figure 2 It is a cross-sectional schematic diagram of the pet drinking fountain 1 along the II-II line, Figure 3 for Figure 2The water tank 10 comprises a water storage structure 11 , a conductive portion 114 , a water pumping structure 12 , a water drinking tray 13 and a water filter tray 14 .

[0080] The water storage structure 11 is used to store water. In at least one embodiment of the present application, the water storage structure 11 is generally a hollow structure with an open upper end. The water storage structure 11 includes a side wall 111, a bottom plate 112 and a low liquid level indicator 113. The side wall 111 is formed by vertically extending upward from the edge of the bottom plate 112. The side wall 111 and the bottom plate 112 enclose a water storage chamber 101 to store water in the water storage chamber 101. The low liquid level indicator 113 is located inside the water storage structure 11 and is vertically arranged on the bottom plate 112. The interior of the low liquid level indicator 113 is a hollow structure to accommodate the conductive part 114. In at least one embodiment of the present application, the low liquid level indicator 113 can be set at a position close to the center of the bottom plate 112. In other embodiments, the low liquid level indicator 113 can also be set at other positions of the bottom plate 112 as required, but a certain safety interval is required between the side wall 111 and the pumping structure 12. In at least one embodiment of the present application, the conductive portion 114 is embedded in the low liquid level indicating portion 113 by a cold pressing process.

[0081] The low liquid level indicator 113 includes a bottom end 1131 and a distal end 1132. The bottom end 1131 and the distal end 1132 are integrally formed. The distal end 1132 is arranged at one end of the bottom end 1131 away from the bottom plate 112. The diameter of the distal end 1132 is smaller than the inner diameter of the bottom end 1131 to form a step shape. The bottom end 1131 is a hollow cylindrical shape. The bottom end 1131 and the distal end 1132 are used to accommodate the conductive part 114 and isolate the conductive part 114 from the water in the water storage chamber 101. The horizontal line at the junction of the bottom end 1131 and the distal end 1132 serves as a warning line L. The warning line L is used to indicate the lowest liquid level of the water in the water storage chamber 101 when the pet water dispenser 1 can perform the pumping operation; that is, the lowest liquid level required for the pet water dispenser 1 to achieve water circulation. The conductive part 114 is arranged outside the water storage chamber 101 and is clamped in the bottom end 1131 by the distal end 1132. The conductive part 114 is not in contact with the water in the water storage chamber 101. The conductive part 114 is insulated from the low liquid level indicator 113 and is used to cooperate with the probe 231 in the base 20 to form a sensing structure. The liquid changes in the water storage chamber 101 are detected by the sensing structure, and the capacitance value changes of the sensing structure are further detected by the control structure 23 in the base 20 to identify whether the liquid level in the water storage chamber 101 is lower than the warning line L and whether the water tank 10 is installed on the base 20. The conductive part 114 is formed outside the water storage chamber 101 by cold pressing and is located in the low liquid level indicator 113. The low liquid level indicator 113 adopts a stepped design, which can facilitate the processing and manufacturing of the conductive part 114 and the water tank 10. At the same time, the conductive part 114 is clamped in the low liquid level indicator 113 by the distal end 1132, which can prevent the conductive part 114 from falling off during the disassembly of the water tank 10, thereby improving the stability of the water tank 10 structure.

[0082] One end of the pumping structure 12 is received in the water storage chamber 101, and the other end passes through the water filter tray 14 and the water drinking tray 13 in sequence and is exposed above the water drinking tray 13. The pumping structure 12 is used to pump water out of the water storage chamber 101 and flow it into the water drinking tray 13. The pumping structure 12 includes a pumping housing 121, a magnetic fan blade portion 123, and a guide portion 124.

[0083] The water pumping shell 121 is located in the water storage chamber 101. The water pumping shell 121 is buckled on the bottom plate 112. The water pumping shell 121 is a hollow structure. A water pumping chamber 104 is formed in the water pumping shell 121. A water inlet 1212 is provided on the water pumping shell 121. The water inlet 1212 is connected to the water storage chamber 101, and is used to allow water in the water storage chamber 101 to flow into the water pumping chamber 104. The horizontal plane where the lower edge of the water inlet 1212 is located is not higher than the horizontal plane where the warning line L is located. Through the above-mentioned setting method, it can be ensured that the water in the water pumping chamber 104 can be pumped to the water drinking tray 13 to ensure the normal use of the pet water dispenser 1.

[0084] The magnetic fan blade portion 123 includes a fan blade member 1231 and a magnetic transmission member 1232. The fan blade member 1231 is accommodated in the water pumping housing 121 and can rotate in the water pumping housing 121. The fan blade member 1231 is used to pump water in the water storage chamber 101 into the water pumping chamber 104 under the drive of the magnetic transmission member 1232 so as to flow through the guide portion 124 to the drinking water tray 13. In at least one embodiment of the present application, the fan blade member 1231 is roughly composed of a plurality of fan blades arranged in a circle. The magnetic transmission member 1232 is arranged between the water pumping housing 121 and the main body of the fan blade member 1231. The magnetic transmission member 1232 is used to drive the fan blade member 1231 to rotate under the drive of the base 20. In at least one embodiment of the present application, the magnetic transmission member 1232 can be a magnet.

[0085] The guide portion 124 is fixedly arranged on the surface of the water pumping housing 121 away from the bottom plate 112. The guide portion 124 passes through the filtered water tray 14 and the drinking water tray 13 in sequence, and is exposed above the drinking water tray 13. The guide portion 124 is a hollow structure, and a guide cavity 105 is formed inside it. The guide cavity 105 is communicated with the water pumping cavity 104. The guide portion 124 is used to make the water in the water pumping cavity 104 flow directly to the drinking water tray 13 through the guide cavity 105 when the fan blade 1231 rotates. In at least one embodiment of the present application, the end of the guide portion 124 located above the drinking water tray 13 is roughly trumpet-shaped.

[0086] The water tray 13 is placed on the water storage structure 11. The middle of the water tray 13 is recessed toward the bottom plate 112 to form a water storage area 131. The water storage area 131 is used to store water flowing out of the pumping structure 12 to provide it for the pet to drink. A water outlet 132 is further provided at the edge of the water tray 13. The water outlet 132 is connected to the water storage chamber 101 and is used to return excess water in the water storage area 131 to the water storage chamber 101 below.

[0087] The water filter tray 14 is arranged to cover the top of the water storage structure 11 and is located below the water tray 13. The water filter tray 14 is used to filter impurities before the water enters the water storage chamber 101. The water filter tray 14 is further used to receive the backflow water overflowing from the water tray 13, and filter the backflow water before flowing back into the water storage chamber 101. The water filter tray 14 is recessed in the direction close to the bottom plate 112 to form a receiving portion 141. The water filter tray 14 includes a filter element 142. The filter element 142 is received in the receiving portion 141. The filter element 142 is used to filter the received backflow water, for example, filter impurities, so as to keep the water stored in the water storage chamber 101 clean to a certain extent. In at least one embodiment of the present application, the filter element 142 can be a filter cotton. The bottom surface of the receiving portion 141 is provided with a perforation (not marked in the figure) to allow the guide portion 124 to pass through. The diameter of the perforation is slightly larger than the diameter of the guide portion 124, so as to form a water outlet 143 between the water filter tray 14 and the guide portion 124. The water filtered by the filter element 142 flows back into the water storage chamber 101 through the water outlet 143. The water filter tray 14 is further provided with an overflow port 144. The overflow port 144 is provided on the side of the water filter tray 14. The overflow port 144 is connected to the water storage chamber 101, and is used to prevent the water stored in the water filter tray 14 from flowing back to the drinking water tray 13. When there is too much water stored in the water filter tray 14, the unfiltered water flows directly into the water storage chamber 101.

[0088] The base 20 is detachably mounted as a whole with the water tank 10. The base 20 includes a shell 21 and a drive structure 22 and a control structure 23 contained in the shell 21. The shape of the shell 21 is adapted to the water tank 10. The drive structure 22 includes a drive motor 221 and a magnetic rotating part 222. Among them, the drive motor 221 is used to drive the magnetic rotating part 222 to rotate in the shell 21. The magnetic rotating part 222 is placed above the drive motor 221. The magnetic rotating part 222 includes a rotating member 2221 and a magnetic driving member 2223. The rotating member 2221 is sleeved on the outside of the drive motor 221. In at least one embodiment of the present application, the rotating member 2221 is roughly circular. Among them, the rotating member 2221 is coaxially arranged with the fan blade member 1231. The magnetic driving member 2223 is contained in the surface of the rotating member 2221 away from the drive motor 221, and rotates under the drive of the rotating member 2221. The magnetic driving member 2223 is used to drive the magnetic transmission member 1232 to rotate. In at least one embodiment of the present application, the magnetic driving member 2223 includes a plurality of magnets arranged at intervals along the circumference.

[0089] Please also read Figure 2 as well as Figure 3 , Figure 2 It is a cross-sectional schematic diagram of the pet drinking fountain 1 along the II-II line, Figure 3 for Figure 2The control structure 23 is accommodated in the housing 21. The control structure 23 cooperates with the conductive part 114 to sense whether the water tank 10 is installed on the base 20 and whether the liquid level in the water tank 10 is lower than the warning line L. The control structure 23 includes a probe 231 and a control member 232. The probe 231 is electrically connected to the control member 232 and can be exposed relative to the base 20 through the housing 21. When the water tank 10 is separated from the base 20, the probe 231 is exposed relative to the base 20 and is not in contact with the conductive part 114, and it is used as a sensing structure alone; when the water tank 10 is installed on the base 20, the probe 231 is in contact with the conductive part 114, and the two cooperate to form a sensing structure. The control member 232 is electrically connected to the driving structure 22, and data communication can be performed between the two. The control member 232 can detect the capacitance value of the sensing structure, and identify whether the water tank 10 is placed on the base 20 and whether the liquid level in the water tank 10 is lower than the warning line L according to the capacitance value of the sensing structure. The control member 232 is also used to output different control signals to the drive structure 22 according to different capacitance values, so as to control the drive structure 22 to switch between the working state and the stop state. Specifically, the control structure 23 determines whether the water tank 10 is in place by comparing the capacitance value of the sensing structure with the in-place threshold value. When the capacitance value of the sensing structure is less than the in-place threshold value, the control structure 23 recognizes that the water tank 10 is not in place, and outputs a stop drive signal to the drive structure 22. When the capacitance value of the sensing structure is greater than the in-place threshold value, the control structure 23 recognizes that the water tank 10 is in place, and further compares the capacitance value of the sensing structure with the early warning threshold value to determine whether the liquid level in the water storage chamber 101 is lower than the early warning line L. Among them, the early warning threshold value is greater than the in-place threshold value. When the capacitance value of the sensing structure is less than the early warning threshold value, the control structure 23 recognizes that the liquid level in the water storage chamber 101 is lower than the early warning line L, and outputs a stop drive signal to the drive structure 22. When the capacitance value of the sensing structure is greater than or equal to the early warning threshold value, the control structure 23 recognizes that the liquid level in the water storage chamber 101 is normal, and outputs a start signal to the drive structure 22.

[0090] Please also read Figure 4 and Figure 5 , Figure 4 for Figure 1 A three-dimensional schematic diagram of the middle control component 232, Figure 5 for Figure 1 A three-dimensional schematic diagram of the control element 232 from another angle. The control element 232 includes a control circuit board 2320. The control circuit board 2320 has a first surface 2321 and a second surface 2322 opposite thereto. The probe 231 is disposed on the first surface 2321.

[0091] The control part 232 may be provided with a sensing chip 233 and a main control chip 234. The sensing chip 233 is arranged on the second surface 2322 and is electrically connected to the probe 231. The sensing chip 233 is used to output the capacitance value of the sensing structure to the main control chip 234. The main control chip 234 is separately arranged on the second surface 2322 from the sensing chip 233. Among them, the main control chip 234 is a processor. In at least one embodiment of the present application, the processor may be a central processing unit (CPU), or other general-purpose processors, digital signal processors (DSP), application-specific integrated circuits (ASIC), field-programmable gate arrays (FPGA) or other programmable logic devices, discrete gates or transistor logic devices, discrete hardware components, etc. The general-purpose processor may be a microprocessor or the processor may also be any conventional processor, etc. In at least one embodiment of the present application, by respectively arranging the sensing chip 233 and the probe 231 on opposite surfaces of the control circuit board 2320 and directly electrically connecting the two, the complexity of the control circuit board 2320 can be reduced and the production cost of the pet drinking fountain 1 can be reduced.

[0092] The pet water dispenser 1 further includes a sensing column 30. The sensing column 30 is vertically arranged on the base 20 and is arranged adjacent to the water tank 10. An infrared sensor is arranged in the sensing column 30 for sensing the approach of an object. When an object is sensed to be approaching, a trigger signal is generated to the control component 232 so that the control component 232 starts to detect the capacitance value. An indicator light 31 is arranged on the upper surface of the sensing column 30. The indicator light 31 is electrically connected to the control component 232. When it is identified that the water tank 10 is not placed on the base 20 and the liquid level in the water tank 10 is lower than the warning line L, the control component 232 outputs an abnormal indication signal to light up the indicator light 31, thereby prompting the user that the state of the pet water dispenser 1 is abnormal. In other embodiments, a plurality of indicator lights 31 may be arranged on the sensing column 30, corresponding to different abnormal states respectively. For example, when the water tank 10 is not in place, the first indicator light is on; when the water tank 10 is in place and the liquid level in the water storage chamber 101 is lower than the warning line L, the first indicator light is off and the second indicator light is on; when the water tank 10 is in place and the liquid level in the water storage chamber 101 is higher than the warning line L, both the first indicator light and the second indicator light are off.

[0093] The working principle of pet drinking fountain 1 is as follows:

[0094] When the water tank 10 is not mounted on the base 20, the probe 231 is not in contact with the conductive part 114, and it serves as a sensing structure alone. The control member 232 identifies that the capacitance value of the sensing structure is less than the in-position threshold value, and outputs a stop signal to the driving structure 22 to control the driving structure 22 to be in a stopped state. At the same time, the control structure 23 also outputs an abnormal indication signal to light up the indicator light 31.

[0095] When the water tank 10 is installed on the base 20, the probe 231 contacts the conductive part 114, and the two cooperate to form a sensing structure. The control part 232 identifies that the capacitance value of the sensing structure is greater than or equal to the in-place threshold, and the control part 232 determines the size of the capacitance value of the sensing structure and the warning threshold. When the water in the water storage chamber 101 covers the bottom end 1131 but does not cover the distal end 1132 (that is, the liquid level in the water storage chamber 101 is lower than the warning line L), the capacitance value of the sensing structure is less than the warning threshold, and the control part 232 outputs a stop signal to the drive structure 22 when the capacitance value of the sensing structure is less than the warning threshold, so as to control the drive structure 22 to be in a stopped state. At the same time, the control structure 23 also outputs an abnormal indication signal to light up the indicator light 31.

[0096] Further, when the capacitance value of the sensing structure is greater than or equal to the warning threshold, the control structure 24 identifies that the liquid level of the water storage chamber 101 is in a normal state, and outputs a start signal to the drive structure 22. When the drive structure 22 is in a working state according to the start signal, the drive motor 221 drives the rotating member 2221 to rotate, and the magnetic driving member 2223 cooperates with the magnetic transmission member 1232 to drive the fan blade member 1231 to rotate in the water pumping chamber 104. At this time, the water in the water pumping chamber 104 enters the guide part 124 from the water pumping chamber 104 under the drive of the fan blade member 1231, and flows from the end of the guide part 124 away from the bottom plate 112 to the water tray 13. When there is too much water stored in the water tray 13, the excess water flows into the water filter tray 14 through the water outlet 132. The water in the water filter tray 14 is filtered by the filter element 142 and then flows back to the water storage chamber 101 through the water outlet 143. When there is too much water stored in the water filter tray 14, the unfiltered water flows directly into the water storage chamber 101, thereby realizing the circulating water of the pet water dispenser 1 and forming flowing living water in the water storage area 131 to attract pets.

[0097] The above-mentioned pet water dispenser 1, by setting the conductive part 114 located outside the water tank 10 to cooperate with the probe 231 in the base 20 as a sensing structure, avoids the sensing structure from directly contacting the water in the water tank 10, and can effectively prevent the water in the water tank 10 from being polluted. By clamping the conductive part 114 with the distal end 1132, the stability of the sensing structure can be ensured. In addition, since the water tank 10 and the base 20 are electrically insulated, that is, there is no charged component inside the water tank 10, it can prevent the pet from being electrocuted when contacting the water tray 13 on the water tank 10, thereby improving the safety of drinking water. At the same time, by setting the sensing chip 233 and the probe 231 on the opposite surfaces of the control circuit board 2320 respectively, and directly connecting the two electrically, the complexity of a large number of circuit layouts can be reduced, and the production cost of the pet water dispenser 1 can be reduced.

[0098] Therefore, no matter from which point of view, the embodiments should be regarded as illustrative and non-restrictive, and the scope of the present application is limited by the appended claims rather than the above description, so it is intended that all changes falling within the meaning and scope of the equivalent elements of the claims are included in the present application. Any attached figure mark in the claims should not be regarded as limiting the claims involved.

[0099] As described above, the above embodiments are only used to illustrate the technical solutions of the present application, rather than to limit them. Although the present application has been described in detail with reference to the aforementioned embodiments, those skilled in the art should understand that they can still modify the technical solutions described in the aforementioned embodiments, or make equivalent replacements for some of the technical features therein. However, these modifications or replacements do not cause the essence of the corresponding technical solutions to deviate from the scope of the technical solutions of the embodiments of the present application.

Claims

1. A pet drinking fountain, characterized in that: The pet drinking fountain comprises: A base, the base comprising a control component and a probe; the control component is accommodated in the base, one end of the probe is electrically connected to the control component, and the other end of the probe extends out of the base and is exposed relative to the base; A water tank, the water tank comprising a low liquid level indicator and a conductive part; the low liquid level indicator is formed by the bottom of the water tank being recessed into the water tank; the conductive part is accommodated in the low liquid level indicator and is located outside the water tank; When the water tank is installed on the base, the conductive part contacts the probe; and the control component identifies the liquid level in the water tank according to the conductive part and the probe.

2. The pet drinking fountain according to claim 1, characterized in that: The water tank also includes a pumping structure; the pumping structure is provided with a water inlet; the low liquid level indicator is provided with a warning line; the horizontal plane where the warning line is located is not lower than the horizontal plane where the lower edge of the water inlet is located; the control component, in cooperation with the conductive part and the probe, identifies whether the liquid level in the water tank is lower than the warning line.

3. The pet drinking fountain according to claim 2, characterized in that: The low liquid level indicating part has a distal end and a bottom end, the diameter of the distal end is smaller than the diameter of the bottom end, and the distal end and the bottom end form a step shape; the distal end is arranged away from the bottom of the water tank, and the distal end is used to embed the conductive part into the low liquid level indicating part; the step surface of the low liquid level indicating part serves as the warning line.

4. The pet drinking fountain according to claim 1, characterized in that: The water tank is detachably mounted on the base; when the water tank is not mounted on the base, the control component detects whether the water tank is mounted on the base through the probe.

5. The pet drinking fountain according to claim 1, characterized in that: The control component includes a control circuit board and a sensing chip; the probe and the sensing chip are respectively arranged on the control circuit board, and the probe is directly electrically connected to the sensing chip.

6. The pet drinking fountain according to any one of claims 2 to 5, characterized in that: The water tank further includes a pumping structure and a drinking water tray; the base further includes a driving structure electrically connected to the control component; when the liquid level in the water tank is lower than the warning line and / or the water tank is not installed on the base, the control component outputs a stop driving signal to control the driving structure to be in a stopped state, and the pumping structure does not perform a pumping operation; when the water tank is installed on the base and the liquid level in the water tank is higher than the warning line, the control component outputs a start signal to control the driving structure to be in a working state, and under the drive of the driving structure, the pumping structure pumps water out of the water tank and flows it to the drinking water tray.

7. The pet drinking fountain according to any one of claims 2 to 5, characterized in that: The pet drinking fountain further includes a sensing column; an indicator light is provided on the sensing column; the indicator light is electrically connected to the control component; when the liquid level in the water tank is lower than the warning line and / or the water tank is not installed on the base, the control component outputs an abnormal prompt signal to light up the indicator light.

8. The pet drinking fountain according to any one of claims 2 to 5, characterized in that: The conductive part and the probe constitute a sensing structure; the control component compares the capacitance value of the sensing structure with a warning threshold; when the capacitance value of the sensing structure is less than the warning threshold, the control component identifies that the liquid level in the water tank is lower than the warning line; when the capacitance value of the sensing structure is greater than or equal to the warning threshold, the control component identifies that the liquid level in the water tank is higher than the warning line.

9. The pet drinking fountain according to claim 8, characterized in that: When the water tank is not installed on the base, the probe constitutes a sensing structure; the control component compares the capacitance value of the sensing structure with an in-place threshold; wherein the in-place threshold is less than the warning threshold; when the capacitance value of the sensing structure is less than the in-place threshold, the control component identifies that the water tank is not installed on the base.

10. The pet drinking fountain according to claim 6, characterized in that: The water pumping structure includes a magnetic fan blade part and a guide part; the driving structure includes a driving motor and a magnetic rotating part; the driving motor is electrically connected to the control component, and the driving motor drives the magnetic rotating part to rotate according to the start signal; the magnetic rotating part and the magnetic fan blade part magnetically cooperate to achieve rotation; when the magnetic fan blade part rotates, the water in the water tank is pumped into the water tray through the guide part.

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