Water supplementing device and water drinking equipment

Abstract

The utility model relates to a water replenishing device and water drinking equipment. The water replenishing device comprises a water tank, a switch valve, a liquid level detection piece, a pressure detector and a controller; the water tank communicates with a water inlet pipe; the switch valve is arranged on the water inlet pipe; the liquid level detection part is arranged in the water tank and comprises a first liquid level detector and a second liquid level detector, the first liquid level detector is used for detecting a first preset water level, and the second liquid level detector is used for detecting a second preset water level; the pressure detector is arranged on the water inlet pipe and used for detecting the water pressure in the water inlet pipe; the controller is electrically connected with the switch valve, the liquid level detection piece and the pressure detector, the controller is used for opening the switch valve when the water level in the water tank is a first preset water level and closing the switch valve when the water level in the water tank is a second preset water level, and the controller is further used for closing the switch valve when the switch valve is in an open state. When the water pressure in the water inlet pipe is lower than the preset water pressure, a warning signal is sent; wherein the first preset water level is lower than the second preset water level.

Description

TECHNICAL FIELD

[0001] The utility model relates to water supply technical field especially, and it is related to water replenishing device and drinking water equipment. BACKGROUND

[0002] Line machine is a common drinking water equipment, through pipeline connection water purifier or water purifier pressure barrel, for the user provides the cold and hot water that can take immediately. In line machine, to avoid external water pressure uncontrolled influence on the whole machine water, usually there is water tank specially used for storing the water to be heated, guarantee line machine water pump can take water in normal pressure environment, ensure the flow consistency of pump. However, the water tank in the existing line machine has the problem of poor water replenishing reliability. SUMMARY

[0003] Therefore, it is necessary to provide a water replenishing device for the technical problem of poor water replenishing reliability of the water tank in the existing line machine.

[0004] Water tank, the water tank is communicated with water inlet pipe;

[0005] Switch valve, set up in the water inlet pipe;

[0006] Liquid level detection piece, be equipped with in the water tank, the liquid level detection piece includes first liquid level detector and second liquid level detector, the first liquid level detector is used to detect first preset water level, the second liquid level detector is used to detect second preset water level;

[0007] Pressure detector, set up in the water inlet pipe, the pressure detector is used to detect the water pressure in the water inlet pipe; And,

[0008] Controller, the controller is electrically connected with the switch valve, the first liquid level detector, the second liquid level detector and the pressure detector, the controller is used to open the switch valve when the water liquid in the water tank is located at the first preset water level, closes the switch valve when the water liquid in the water tank is located at second preset water level, and the controller is also used to send warning signal when the water pressure in the water inlet pipe is lower than preset water pressure when the switch valve is in the open state. Wherein, the first preset water level is lower than the second preset water level.

[0009] The water supplementing device transmits first preset water level information to the controller through the first liquid level detector, so that the controller controls the on-off valve to open to automatically supplement water, and transmits second preset water level information to the controller through the second liquid level detector, so that the controller controls the on-off valve to close to stop water supplementing, thereby ensuring that the water tank has sufficient water to ensure the stability of the water flow of the water tank. The water inlet pipe is provided with a pressure detector for detecting the water pressure in the water inlet pipe. When the on-off valve is in the open state, if the water pressure in the water inlet pipe is higher than the preset water pressure, the water tank normally supplements water. If the water pressure in the water inlet pipe is lower than the preset water pressure, the controller sends an alarm signal to provide water source to the water inlet pipe in time, thereby ensuring that water enters the water inlet pipe after the on-off valve is opened, and ensuring the reliability of automatic water supplementing of the water tank.

[0010] In one of the embodiments, the water supplementing device further comprises a water outlet pipe and a water pump, the water outlet pipe is in communication with the water tank, and the water pump is arranged on the water outlet pipe.

[0011] In one of the embodiments, the water outlet pipe is partially arranged in the water tank, the water inlet of the water outlet pipe extends to the bottom end of the water tank, and the water outlet of the water outlet pipe is located outside the water tank.

[0012] In one of the embodiments, the water pump is arranged on the area of the water outlet pipe outside the water tank.

[0013] In one of the embodiments, the water pump is electrically connected with the controller, the controller is used to obtain the water outlet volume of the water tank according to the power-on time of the water pump and the water intake flow of the water pump, and the controller is configured to report the first liquid level detector as being faulty when the water outlet volume is greater than a first preset value and no signal of the first liquid level detector is received.

[0014] In one of the embodiments, the water supplementing device further comprises a water inlet flow detector, the water inlet flow detector is arranged on the water inlet pipe and electrically connected with the controller, the water inlet flow detector is used to detect the water inlet flow of the water inlet pipe, the controller is used to obtain the water inlet volume of the water tank according to the water inlet flow information and the power-on time of the on-off valve, and the controller is configured to report the second liquid level detector as being faulty when the water inlet volume is greater than a second preset value and no signal of the second liquid level detector is received.

[0015] In one of the embodiments, the first liquid level detector comprises a first connecting member and a first float, one end of the first connecting member is connected to the water tank, the other end of the first connecting member is located in the water tank, the first float is arranged in the water tank and sleeved on the first connecting member, the first float can float relative to the first connecting member under the buoyancy of water, and the first liquid level detector is used for sending a low liquid level signal to the controller when the first float floats to the first preset water level position; and / or,

[0016] The second liquid level detector comprises a second connecting member and a second float, one end of the second connecting member is connected to the water tank, the other end of the second connecting member is located in the water tank, the second float is arranged in the water tank and sleeved on the second connecting member, the second float can float relative to the second connecting member under the buoyancy of water, and the second liquid level detector is used for sending a high liquid level signal to the controller when the second float floats to the second preset water level position.

[0017] In one of the embodiments, the water tank has a first mounting hole, the first connecting member comprises a first conduit, a first locking part and a first limiting ring, one end of the first conduit is arranged through the first mounting hole and connected with the first locking part to fix the first conduit on the water tank,

[0018] the other end of the first conduit is connected to the first limiting ring, the first float is sleeved on the first conduit, and the first limiting ring is used for abutting against the first float to limit the first float from being pulled out; and / or,

[0019] The water tank has a second mounting hole, the second connecting member comprises a second conduit, a second locking part and a second limiting ring, one end of the second conduit is arranged through the second mounting hole and connected with the second locking part to fix the second conduit on the water tank,

[0020] the other end of the second conduit is connected to the second limiting ring, the second float is sleeved on the second conduit, and the second limiting ring is used for abutting against the second float to limit the second float from being pulled out.

[0021] In one of the embodiments, the number of the first locking parts is two, the two first locking parts are sleeved on the first conduit and threadedly connected with the first conduit, and the two first locking parts abut against the inner side and the outer side of the tank wall of the water tank respectively; and / or, the number of the second locking parts is two, the two second locking parts are sleeved on the second conduit and threadedly connected with the second conduit, and the two second locking parts abut against the inner side and the outer side of the tank wall of the water tank respectively.

[0022] The utility model also provides a kind of drinking water equipment, at least one technical problem described above can be solved.

[0023] A kind of drinking water equipment, including the water replenishing device described above. BRIEF DESCRIPTION OF DRAWINGS

[0024] Figure 1 Part structure schematic view of the water replenishing device provided for an embodiment of the utility model.

[0025] Figure 2 Structure schematic view of the water replenishing device provided for an embodiment of the utility model.

[0026] Figure 3 Structure schematic view of the first liquid level detector in the water replenishing device provided for an embodiment of the utility model.

[0027] Figure 4 Structure schematic view of the second liquid level detector in the water replenishing device provided for an embodiment of the utility model.

[0028] Reference signs: 100, water tank;110, switch valve;120, water pump;130, water inlet pipe;140, water outlet pipe;150, drain hole;160, plugging piece;170, first shell;171, protruding part;172, annular plate;180, second shell;200, liquid level detection piece;210, first liquid level detector;211-first connecting piece;212, first float;213, first conduit;214, first locking part;215, first limit ring;

[0029] 220, second liquid level detector;221, second connecting piece;222, second float;223, second conduit;224, second locking part;225, second limit ring;310, pressure detector;320, water inlet flow detector. DETAILED DESCRIPTION

[0030] To make the above purpose, features and advantages of the utility model more obvious and easy to understand, the specific embodiment of the utility model is explained in detail below with the help of the drawings.In the following description, a lot of specific details are set forth so as to fully understand the utility model.But the utility model can be implemented in many other ways different from the description herein, and those skilled in the art can make similar improvements without violating the connotation of the utility model, so the utility model is not limited by the specific embodiments disclosed below.

[0031] In the description of the utility model, it is understood that the orientation or positional relationship indicated by the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "axial", "radial", "circumferential" and the like is the orientation or positional relationship based on the orientation or positional relationship shown in the drawings, which is only for the convenience of describing the utility model and simplifying the description, and does not indicate or imply that the device or element indicated must have a particular orientation, be constructed and operated in a particular orientation, and therefore cannot be understood as a limitation on the utility model.

[0032] In addition, the terms "first" and "second" are only for the purpose of description, and cannot be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. Therefore, the features defined with "first" and "second" can explicitly or implicitly include at least one of the features. In the description of the utility model, the meaning of "multiple" is at least two, for example, two, three, etc., unless otherwise specifically limited.

[0033] In the utility model, unless otherwise specifically defined and limited, the terms "mounting", "connection", "connection", "fixing" and the like should be understood broadly, for example, it can be fixed connection, or detachable connection, or integrated; it can be mechanical connection, or electrical connection; it can be directly connected, or indirectly connected through intermediate medium, it can be the communication or interaction relationship between two elements, unless otherwise specifically limited. For ordinary skilled in the art, the specific meaning of the above terms in the utility model can be understood according to the specific circumstances.

[0034] In the utility model, unless otherwise specifically defined and limited, the first feature is "on" or "under" the second feature, which can be direct contact between the first and second features, or indirect contact between the first and second features through intermediate medium. Moreover, the first feature "above", "above" and "above" the second feature can be directly above or obliquely above the first feature, or only indicate that the horizontal height of the first feature is higher than that of the second feature. The first feature "below", "below" and "below" the second feature can be directly below or obliquely below the first feature, or only indicate that the horizontal height of the first feature is less than that of the second feature.

[0035] It is to be understood that when an element as a preamble is referred to as being "on" or "disposed on" another element, it can be directly on the other element or intervening elements can also be present. When an element is referred to as being "connected" or "coupled" to another element, it can be directly connected or coupled to the other element or intervening elements can also be present. As used herein the terms "vertical", "horizontal", "upper", "lower", "left", "right", and the like as well as their derivatives, refer to the orientation of the figure and not to the orientation of the device.

[0036] Referring to Figure 1 and Figure 2 , Figure 1 Part structure schematic view of water supplementing device provided by an embodiment of the utility model. Figure 2 Structure schematic view of water supplementing device provided by an embodiment of the utility model. The water supplementing device provided by an embodiment of the utility model comprises a water tank 100, a switch valve 110, a liquid level detecting piece 200, a pressure detector 310 and a controller. The water tank 100 is communicated with a water inlet pipe 130. The switch valve 110 is arranged on the water inlet pipe 130. The liquid level detecting piece 200 is arranged in the water tank 100. The liquid level detecting piece 200 comprises a first liquid level detector 210 and a second liquid level detector 220. The first liquid level detector 210 is used for detecting a first preset water level. The second liquid level detector 220 is used for detecting a second preset water level. The pressure detector 310 is arranged on the water inlet pipe 130. The pressure detector 310 is used for detecting the water pressure in the water inlet pipe 130. The controller is electrically connected with the switch valve 110, the first liquid level detector 210, the second liquid level detector 220 and the pressure detector 310. The controller is used for opening the switch valve 110 when the water in the water tank 100 is at the first preset water level and closing the switch valve 110 when the water in the water tank 100 is at the second preset water level. The controller is also used for sending an alarm signal when the water pressure in the water inlet pipe 130 is lower than a preset water pressure when the switch valve 110 is in an open state. The first preset water level is lower than the second preset water level.

[0037] Specifically, the first preset water level information is transmitted to the controller by the first liquid level detector 210, so that the controller controls the opening of the switch valve 110 to automatically replenish water, and the second preset water level information is transmitted to the controller by the second liquid level detector 220, so that the controller controls the closing of the switch valve 110 to stop water replenishment, thereby ensuring that the water tank 100 has sufficient water to ensure the stability of the water flow of the water tank 100. The water inlet pipe 130 is provided with a pressure detector 310, which is used to detect the water pressure in the water inlet pipe 130. When the switch valve 110 is in the open state, if the water pressure in the water inlet pipe 130 is higher than the preset water pressure, the water tank 100 normally replenishes water, and if the water pressure in the water inlet pipe 130 is lower than the preset water pressure, the controller sends an alarm signal to provide water source to the water inlet pipe 130 in time, thereby ensuring that water enters the water inlet pipe after the switch valve 110 is opened, and the reliability of the automatic water replenishment of the water tank 100 is ensured. The switch valve 110 is an electromagnetic valve.

[0038] The first preset water level is lower than the second preset water level. When the water in the water tank 100 is at the first preset water level, the first liquid level detector 210 sends a low liquid level information, and when the water in the water tank 100 is at the second preset water level, the second liquid level detector 220 sends a high liquid level information.

[0039] It should be noted that the water replenishment device in the embodiment is applied to a pipeline machine, and in other embodiments, the water replenishment device in the application can also be applied to other devices. The water replenishment device in the embodiment is applied to a pipeline machine as an example for description. The water inlet of the water inlet pipe 130 is used to connect a water purifier or a water pressure barrel.

[0040] Referring to Figure 1 In one embodiment, the water replenishment device further comprises a water outlet pipe 140 and a water pump 120. The water outlet pipe 140 is in communication with the water tank 100, and the water pump 120 is arranged in the water outlet pipe 140, thereby providing power to facilitate water taking.

[0041] Referring to Figure 1 and Figure 2 In one embodiment, the water outlet pipe 140 is partially contained in the water tank 100, the water inlet of the water outlet pipe 140 extends to the bottom end of the water tank 100, and the water outlet of the water outlet pipe 140 is located outside the water tank 100.

[0042] Specifically, the water inlet of the water outlet pipe 140 extends to the bottom end of the water tank 100, so that when the water in the water tank 100 is less, the water can still be stably discharged, and at the same time, the position of the water outlet of the water tank 100 is not limited, thereby facilitating the assembly of the water replenishment device and other components.

[0043] Referring to Figure 1 and Figure 2In one of the embodiments, the water pump 120 is arranged on the area where the water outlet pipe 140 is located outside the water tank 100, so as to facilitate the replacement or maintenance of the water pump 120, and to avoid the pollution of the water in the water tank 100 by the water pump 120.

[0044] Referring to Figure 1 and Figure 2 In one of the embodiments, the water pump 120 is electrically connected with the controller, and the controller is used to obtain the water outlet volume of the water tank 100 according to the power-on time of the water pump 120 and the water intake flow of the water pump 120. The controller is configured to report the failure of the first liquid level detector 210 when the water outlet volume is greater than a first preset value and no signal of the first liquid level detector 210 is received.

[0045] Specifically, the first preset value is the difference between the water volume when the water tank 100 is at the high liquid level and the water volume when the water tank 100 is at the low liquid level. After the signal of the second liquid level detector 220 is disconnected, the controller determines the water outlet flow of the water pump 120 by the cumulative water intake time after a single water outlet and the set gear of the water pump 120, and then combines the difference between the water volume when the water tank 100 is at the high liquid level and the water volume when the water tank 100 is at the low liquid level. When the calculated water volume is higher than the first preset value and no low liquid level signal of the first liquid level detector 210 is detected, the controller reports the failure of the first liquid level detector 210, so as to facilitate the timely maintenance of the water replenishing device and improve the reliability of the water replenishing device. At the same time when the controller reports the failure of the first liquid level detector 210, the controller also controls the opening of the switch valve 110 to ensure that the water tank 100 has sufficient water.

[0046] Referring to Figure 1 and Figure 2 In one of the embodiments, the water replenishing device further comprises a water inlet flow detector 320 arranged on the water inlet pipe 130 and electrically connected with the controller. The water inlet flow detector 320 is used to detect the water inlet flow of the water inlet pipe 130. The controller is used to obtain the water inlet volume of the water tank 100 according to the water inlet flow information and the power-on time of the switch valve 110. The controller is configured to report the failure of the second liquid level detector 220 when the water inlet volume is greater than a second preset value and no signal of the second liquid level detector 220 is received.

[0047] Specifically, the second preset value is the difference between the water volume when the water tank 100 is at the high liquid level and the water volume when the water tank 100 is at the low liquid level. When the detector detects the low liquid level signal and the pressure signal, the controller controls the on-off valve 110 to open to start water replenishment. When the low liquid level signal can be normally disconnected, the controller determines the water inflow of the on-off valve 110 through the energization time of the on-off valve 110 and the water inflow detector 320, and then combines the difference between the water volume when the water tank 100 is at the high liquid level and the water volume when the water tank 100 is at the low liquid level. When the calculated water inflow is higher than the second preset value and the high liquid level signal sent by the second liquid level detector 220 is not detected, the controller reports that the second liquid level detector 220 is faulty, so that the water replenishment device can be repaired in time and the reliability of the water replenishment device is improved. Wherein, the controller controls the on-off valve 110 to close at the same time of reporting that the second liquid level detector 220 is faulty.

[0048] Wherein, when the first liquid level detector 210 and the second liquid level detector 220 encounter part failure, the controller can intelligently judge the failure reason and output a failure code.

[0049] Referring to Figure 1 and Figure 3 , Figure 3 The structure diagram of the first liquid level detector in the water replenishment device provided by an embodiment of the utility model. In one of the embodiments, the first liquid level detector 210 comprises a first connecting piece 211 and a first float 212. One end of the first connecting piece 211 is connected to the water tank 100, and the other end of the first connecting piece 211 is located in the water tank 100. The first float 212 is accommodated in the water tank 100 and sleeved on the first connecting piece 211. The first float 212 can float relative to the first connecting piece 211 under the buoyancy of water. The first liquid level detector 210 is used for sending a low liquid level signal to the controller when the first float 212 floats to a first preset water level position.

[0050] Specifically, the first float 212 comprises a floating ball and a ring-shaped magnet. The ring-shaped magnet is embedded in the inner side of the floating ball. The floating ball is made of foamed material and can float on the water surface. The first connecting piece 211 has a dry reed inside. When the water in the water tank 100 falls to the low liquid level, the floating ball drives the magnet to approach the dry reed, so that the circuit is conducted and the low liquid level signal is transmitted.

[0051] Referring to Figure 1 and Figure 3In one of the embodiments, the water tank 100 is provided with a first mounting hole, the first connecting member 211 comprises a first conduit 213, a first locking portion 214 and a first limiting ring 215, one end of the first conduit 213 is arranged through the first mounting hole and connected with the first locking portion 214 to fix the first conduit 213 on the water tank 100, the other end of the first conduit 213 is connected with the first limiting ring 215, the first float 212 is sleeved on the first conduit 213, and the first limiting ring 215 is used to abut against the first float 212 to limit the first float 212 from being pulled out.

[0052] Specifically, the first mounting hole is arranged on the top wall of the water tank 100, the first locking portion 214 is connected with the portion of the first conduit 213 extending out of the water tank 100 and abuts against the outer side of the tank wall of the water tank 100, thereby fixing the first conduit 213 on the water tank 100. The first float 212 is sleeved on the first conduit 213, the reed tube is arranged in the first conduit 213, and the first float 212 can slide between the first limiting ring 215 and the tank wall of the water tank 100, so that the first float 212 can move downward to the first preset water level position to act with the reed tube when the liquid level of the water liquid decreases. Preferably, the first conduit 213 extends along the direction of gravity.

[0053] Referring to Figure 1 and Figure 3 In one of the embodiments, the number of the first locking portions 214 is two, the two first locking portions 214 are both sleeved on the first conduit 213 and threadedly connected with the first conduit 213, and the two first locking portions 214 respectively abut against the inner side and the outer side of the tank wall of the water tank 100, thereby being able to limit the first conduit 213 from moving relative to the water tank 100, so that the first liquid level detector 210 can stably measure the low liquid level information of the water liquid in the water tank 100 and improve the reliability of the water supplement device.

[0054] Referring to Figure 1 and Figure 4 , Figure 4 A structure diagram of a second liquid level detector in a water supplement device according to one of the embodiments of the present application is shown. In one of the embodiments, the second liquid level detector 220 comprises a second connecting member 221 and a second float 222, one end of the second connecting member 221 is connected with the water tank 100, the other end of the second connecting member 221 is located in the water tank 100, the second float 222 is arranged in the water tank 100 and sleeved on the second connecting member 221, the second float 222 can float relative to the second connecting member 221 under the buoyancy of the water liquid, and the second liquid level detector 220 is used to send a high liquid level signal to the controller when the second float 222 floats to a second preset water level position.

[0055] Specifically, the second float 222 comprises a floating ball and a ring-shaped magnet embedded in the inner side of the floating ball, and the floating ball is made of foamed material and can float on the water surface. The second connecting member 221 has a dry reed inside. When the water in the water tank 100 rises to a high liquid level, the floating ball drives the magnet to approach the dry reed, so that the circuit is conducted and a high liquid level signal is transmitted.

[0056] Referring to Figure 1 and Figure 4 In one embodiment, the water tank 100 has a second mounting hole, the second connecting member 221 comprises a second conduit 223, a second locking portion 224 and a second limiting ring 225, one end of the second conduit 223 is arranged in the second mounting hole and connected with the second locking portion 224 to fix the second conduit 223 on the water tank 100, the other end of the second conduit 223 is connected with the second limiting ring 225, the second float 222 is sleeved on the second conduit 223, and the second limiting ring 225 is used to abut against the second float 222 to limit the second float 222 from being pulled out.

[0057] Specifically, the second mounting hole is located on the top wall of the water tank 100, the second locking portion 224 is connected with the part of the second conduit 223 that extends out of the water tank 100 and abuts against the outer side of the tank wall of the water tank 100, so as to fix the second conduit 223 on the water tank 100. The second float 222 is sleeved on the second conduit 223, the dry reed is arranged in the second conduit 223, and the second float 222 can slide between the second limiting ring 225 and the tank wall of the water tank 100, so that the second float 222 can move upward to the second preset water level position to act on the dry reed when the liquid level of the water rises. The first conduit 213 and the second conduit 223 are arranged on both sides of the water outlet pipe 140, so as to reduce interference. Preferably, the second conduit 223 extends along the direction of gravity.

[0058] Referring to Figure 1 and Figure 4 In one embodiment, the number of the second locking portions 224 is two, the two second locking portions 224 are sleeved on the second conduit 223 and are threadedly connected with the second conduit 223, and the two second locking portions 224 abut against the inner side and the outer side of the tank wall of the water tank 100 respectively, so as to limit the second conduit 223 from moving relative to the water tank 100, so that the second liquid level detector 220 can stably measure the low liquid level information of the water in the water tank 100 and improve the reliability of the water replenishing device.

[0059] Referring to Figure 1 and Figure 2In one of the embodiments, the water tank 100 is further provided with a drain hole 150 communicating with the outside, the drain hole 150 is located on the bottom wall of the water tank 100, and the water replenishing device further comprises a blocking member 160, the blocking member 160 is used for detachably connecting with the bottom wall of the water tank 100 to block the drain hole 150. When it is needed to drain water, the blocking member 160 is separated from the bottom wall of the water tank 100, so that the water in the water tank 100 is drained from the drain hole 150.

[0060] Referring to Figure 1 and Figure 2 In one of the embodiments, the water tank 100 comprises a first shell 170 and a second shell 180, the first shell 170 is connected with the second shell 180 to enclose the water tank 100. The first shell 170 can be separated from the second shell 180, so as to facilitate the maintenance of the components inside the water tank 100 and improve the reliability of the water replenishing device.

[0061] Further, the first shell 170 comprises a convex portion 171 and an annular plate 172 connected with each other, the annular plate 172 is used for connecting with the second shell 180, the convex portion 171 is located at the central region of the annular plate 172 and protrudes away from the second shell 180, so that the first water tank 100 has a special-shaped structure, thereby facilitating the maximum utilization of the assembly space inside the pipeline machine. Preferably, the convex portion 171 and the annular plate 172 are integrally formed.

[0062] Referring to Figure 1 and Figure 2 The embodiments of the utility model further provide a water drinking equipment comprising the above water replenishing device. In the application, the low liquid level information is transmitted to the controller by the first liquid level detector 210, so that the controller controls the opening of the on-off valve 110 to automatically replenish water. The high liquid level information is transmitted to the controller by the second liquid level detector 220, so that the controller controls the closing of the on-off valve 110 to stop water replenishment, thereby ensuring that the water tank 100 has sufficient water to ensure the stability of the water flow of the water tank 100. The water inlet pipe 130 is provided with a pressure detector 310, the pressure detector 310 is used for detecting the water pressure in the water inlet pipe 130, so that when the water inlet of the water inlet pipe 130 has water introduced, the controller controls the opening of the on-off valve 110 to ensure the reliability of the automatic water replenishment of the water tank 100, thereby improving the reliability of the water drinking equipment.

[0063] The technical features of the above embodiments can be combined arbitrarily, and in order to make the description simple, all possible combinations of the technical features in the above embodiments are not described, however, as long as the combinations of the technical features do not exist contradictory, it should be considered that it is within the scope of the present application.

[0064] The above-described embodiments only express several implementation manners of the utility model, the description is more specific and detailed, but can not therefore be understood as the limitation of the utility model patent range. It should be pointed out that for ordinary skilled person in the art, without departing from the utility model concept, several modifications and improvements can be made, which belong to the protection range of the utility model. Therefore, the protection range of the utility model patent should be subject to the appended claims.

Claims

1. A water replenishment device, characterized by, The water replenishing device comprises: a water tank, which is communicated with a water inlet pipe; a switch valve arranged in the water inlet pipe; a liquid level detecting member arranged in the water tank, which comprises a first liquid level detector and a second liquid level detector, the first liquid level detector is used for detecting a first preset water level, and the second liquid level detector is used for detecting a second preset water level; a pressure detector arranged in the water inlet pipe, which is used for detecting the water pressure in the water inlet pipe; and a controller, which is electrically connected with the switch valve, the first liquid level detector, the second liquid level detector and the pressure detector, the controller is used for opening the switch valve when the water in the water tank is at the first preset water level, and closing the switch valve when the water in the water tank is at the second preset water level, and the controller is further used for sending an alarm signal when the water pressure in the water inlet pipe is lower than a preset water pressure when the switch valve is in an open state; wherein the first preset water level is lower than the second preset water level.

2. The device of claim 1, wherein, The water replenishing device further comprises a water outlet pipe and a water pump, the water outlet pipe is communicated with the water tank, and the water pump is arranged in the water outlet pipe.

3. The device of claim 2, wherein, The water outlet pipe is partially arranged in the water tank, the water inlet of the water outlet pipe extends to the bottom end of the water tank, and the water outlet of the water outlet pipe is located outside the water tank.

4. The device of claim 3, wherein, The water pump is arranged on the area of the water outlet pipe outside the water tank.

5. The device of claim 2, wherein, The water pump is electrically connected with the controller, the controller is used for obtaining the water outlet volume of the water tank according to the power-on time of the water pump and the water intake flow of the water pump, and the controller is configured to report the first liquid level detector as being faulty when the water outlet volume is greater than a first preset value and no signal of the first liquid level detector is received.

6. The device of claim 1, wherein, The water replenishing device further comprises a water inlet flow detector, which is arranged in the water inlet pipe and electrically connected with the controller, the water inlet flow detector is used for detecting the water inlet flow of the water inlet pipe, and the controller is used for obtaining the water inlet volume of the water tank according to the water inlet flow information and the power-on time of the switch valve, and the controller is configured to report the second liquid level detector as being faulty when the water inlet volume is greater than a second preset value and no signal of the second liquid level detector is received.

7. The device of any one of claims 1-6, wherein, The first liquid level detector comprises a first connecting member and a first float, one end of the first connecting member is connected to the water tank, the other end of the first connecting member is located in the water tank, the first float is arranged in the water tank and sleeved on the first connecting member, the first float can float relative to the first connecting member under the buoyancy of water, and the first liquid level detector is used for sending a low liquid level signal to the controller when the first float floats to the first preset water level position; and / or, The second liquid level detector comprises a second connecting member and a second float. One end of the second connecting member is connected to the water tank, and the other end of the second connecting member is located in the water tank. The second float is arranged in the water tank and sleeved on the second connecting member. The second float can float relative to the second connecting member under the buoyancy of water. The second liquid level detector is used to send a high liquid level signal to the controller when the second float floats to the second preset water level position.

8. The device of claim 7, wherein, The water tank has a first mounting hole. The first connecting member comprises a first conduit, a first locking portion and a first limiting ring. One end of the first conduit is arranged through the first mounting hole and connected with the first locking portion to fix the first conduit on the water tank. The other end of the first conduit is connected with the first limiting ring. The first float is sleeved on the first conduit. The first limiting ring is used to abut against the first float to limit the first float from being pulled out; and / or The water tank has a second mounting hole. The second connecting member comprises a second conduit, a second locking portion and a second limiting ring. One end of the second conduit is arranged through the second mounting hole and connected with the second locking portion to fix the second conduit on the water tank. The other end of the second conduit is connected with the second limiting ring. The second float is sleeved on the second conduit. The second limiting ring is used to abut against the second float to limit the second float from being pulled out.

9. The device of claim 8, wherein, The number of the first locking portions is two. Both of the first locking portions are sleeved on the first conduit and threadedly connected with the first conduit. Both of the first locking portions abut against the inner side and the outer side of the tank wall of the water tank, respectively; and / or the number of the second locking portions is two. Both of the second locking portions are sleeved on the second conduit and threadedly connected with the second conduit. Both of the second locking portions abut against the inner side and the outer side of the tank wall of the water tank, respectively.

10. A drinking water apparatus, characterized in that The water supplementing device comprises the water supplementing device according to any one of claims 1-9.

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