CN219877948U

CN219877948U - Liquid feeding equipment and horizontal liquid feeding device

Info

Publication number: CN219877948U
Application number: CN202320951706.0U
Authority: CN
Inventors: 金涛
Original assignee: Qingdao Boiling Technology Co ltd
Current assignee: Qingdao Boiling Technology Co ltd
Priority date: 2022-06-05
Filing date: 2023-04-25
Publication date: 2023-10-24
Anticipated expiration: 2033-04-25

Abstract

The utility model discloses a liquid feeding device and a horizontal liquid feeding device, wherein the liquid feeding device is formed by the horizontal liquid feeding device and comprises a water inlet end for being connected with a water source device; the water outlet end is used for supplying water to a given container and is provided with a water outlet valve; the main pipeline is connected from the water inlet end to the water outlet end; a water pump disposed on the main pipeline; the loop is connected from a first pipe section between the water outlet valve and the water pump, and is connected back to the water source device or a second pipe section between the water inlet end and the water pump; the loop is provided with a loop valve; the water outlet valve and the loop valve are constructed as different parts of a main reversing valve or two valves which are mutually independent, and the opening/closing states of the water outlet valve and the loop valve are mutually exclusive. The liquid feeding device can solve the problem that the water outlet valve is impacted too much due to the inertia of liquid in the main pipeline when the liquid feeding device stops feeding liquid.

Description

Liquid feeding equipment and horizontal liquid feeding device

Technical Field

The utility model relates to a liquid feeding device and a horizontal liquid feeding device, and also relates to a horizontal liquid feeding device with the liquid feeding device.

Background

The liquid feeding device is used as a common household appliance and is increasingly used by every family, so that the liquid feeding device becomes a necessary article for life. In the current liquid feeding process, if liquid feeding is needed to be stopped, the water pump and the valve close to the water outlet are only needed to be closed

However, in the above process, if the liquid feeding device stops feeding liquid, the water pump and the valve are closed, so that the water in the liquid feeding device pipeline can continuously impact the valve under the action of inertia, and the pressure in the internal pipeline of the liquid feeding device is increased instantaneously, so that the sealing and communicating structure of the pipeline in the liquid feeding device can be damaged.

Disclosure of Invention

The utility model aims to provide a liquid feeding device, which aims to solve the problem that a water outlet valve is impacted excessively due to the inertia of liquid in a main pipeline when the liquid feeding device stops feeding liquid. The utility model also provides a bedroom liquid feeding device with the liquid feeding equipment.

In an embodiment of the present utility model, a first aspect provides a liquid feeding apparatus, the basic structure of which includes:

the water inlet end is used for being connected with a water source device;

the water outlet end is used for supplying water to a given container and is provided with a water outlet valve;

the main pipeline is connected from the water inlet end to the water outlet end;

A water pump disposed on the main pipeline;

the loop is connected from a first pipe section between the water outlet valve and the water pump, and is connected back to the water source device or a second pipe section between the water inlet end and the water pump; the loop is provided with a loop valve;

the water outlet valve and the loop valve are constructed as different parts of a main reversing valve or two valves which are mutually independent, and the opening/closing states of the water outlet valve and the loop valve are mutually exclusive.

Optionally, the main reversing valve is a two-position three-way valve or a three-position three-way valve;

the open/close state of the outlet valve and the loop valve which are independent of each other is changed based on mechanical linkage or electrical linkage.

Optionally, the main reversing valve is an electromagnetic reversing valve;

the water outlet valve and the loop valve which are mutually independent are electromagnetic valves.

Optionally, the main pipeline is provided with an instant heater;

correspondingly, if the loop is connected back to the second pipe section, the instant heater is positioned on the third pipe section between the two positions corresponding to the connection of the main pipeline of the loop.

Optionally, the instant heater is located on the first pipe section.

Optionally, if the water outlet valve, the loop valve and the main reversing valve are electromagnetic valves, the sub-circuit of the corresponding liquid feeding equipment or the total circuit of the horizontal liquid feeding device contained in the liquid feeding equipment is a relay contact system or a total circuit containing an intelligent unit;

The water pump control circuit of the water pump main circuit comprises a time relay, so that the water pump main circuit is disconnected in a delayed manner after the water outlet valve is cut off;

the intelligent control device is suitable for a circuit containing an intelligent unit, the corresponding intelligent unit outputs through a relay or an optocoupler to output a switching value, and based on preset delay time, the main circuit of the water pump is delayed to be disconnected after a water outlet valve closing instruction input connected with the intelligent unit input is input.

Optionally, in the water supply direction, a temperature sensor is arranged at the rear stage of the instant heating heater on the main pipeline.

Optionally, a water flow sensor is arranged on the main pipeline.

Optionally, a water inlet valve is provided on the second pipe section, the water inlet valve being interposed between the return connection location of the circuit on the main pipe and the water inlet end.

In an embodiment of the present utility model, there is also provided a horizontal type liquid feeding device, including a base, the base including:

the shell is provided with an accommodating cavity with an opening at one side, and a first through hole is formed in the shell;

the liquid feeding device according to the first aspect of the embodiment of the present utility model is installed in the accommodating cavity, and the water inlet end is located at the first through hole and connected with the housing, and is inserted into the housing through the first through hole; and

The cover plate is connected with the shell along the edge of the opening and is provided with a second through hole; the water outlet end is positioned at the second through hole and penetrates out of the accommodating cavity through the second through hole.

Optionally, the kettle also comprises a kettle, and the bottom of the kettle is provided with a water inlet;

providing a water inlet pipe extending upwards from the water inlet to determine the maximum water capacity of the kettle;

the cover plate is used for supporting the kettle;

correspondingly, the water outlet end is provided with a water outlet nozzle on the cover plate, and the water outlet nozzle and the water inlet are in liquid-tight fit through a shaft hole.

Optionally, a one-way valve which takes the water inlet as a valve cavity and is communicated upwards in a one-way is formed at the water inlet.

Optionally, a liquid level sensor is arranged in the kettle.

In the embodiment of the utility model, a loop is provided relative to the traditional liquid feeding equipment, the loop can be directly connected to a water source device in a loop mode, and can also be connected to a second pipe section between the water inlet end and the water pump in a loop mode, and a loop valve is arranged on the loop. The water outlet valve arranged on the main pipeline is the inherent configuration of the liquid feeding equipment, and the water outlet valve and the water pump are linked under normal conditions, namely, the water outlet valve is pressed down, and the water pump can act while the main pipeline is conducted. The water outlet valve is closed and the water pump is usually stopped. In some embodiments of the present utility model, the water pump and the water outlet valve are configured in a conventional manner, and a loop valve is introduced, and the loop valve and the water outlet valve may be linked, so that a switch between a water supply state and a return state may be realized. When the water feeding state is terminated, water with certain kinetic energy in the main pipeline flows back through the loop to flow back, so that the impact on the water outlet valve is reduced.

Drawings

In order to more clearly illustrate the technical solutions of the embodiments of the present utility model, the drawings required for the description of the embodiments will be briefly described below, and it is obvious that the drawings in the following description are only some embodiments of the present utility model, and other drawings may be obtained according to these drawings without inventive effort for a person skilled in the art.

Fig. 1 is a schematic perspective view of a horizontal liquid feeding device according to an embodiment.

Fig. 2 is an exploded view of the base shown in fig. 1.

Fig. 3 is a top view of the base shown in fig. 1 with a liquid feeding apparatus mounted therein.

Fig. 4 is a schematic structural diagram of a second liquid feeding apparatus according to an embodiment.

Fig. 5 is a schematic enlarged view of a portion of a horizontal liquid feeding device according to an embodiment.

Fig. 6 is a schematic structural diagram of a third liquid feeding apparatus according to an embodiment.

Fig. 7 is a schematic structural diagram of a fourth liquid feeding apparatus according to an embodiment.

Fig. 8 is a schematic diagram of a solenoid valve and pump drive circuit in one embodiment.

Reference numerals:

10-a horizontal liquid feeding device;

1-a base;

11-a housing; 111-a bottom plate; 112-side panel frames; 113-a receiving cavity; 114-a first through hole;

12-cover plate;

13-a second through hole;

14-liquid feeding equipment;

141-a first multi-way joint; 1411—a first interface port; 1412-second interface terminal; 1413-a third interface port; 1414-a first preset;

142-a water pump; 1421-a water pump body; 1422—water inlet; 1423—the water outlet;

143-a second multi-way joint; 1431-a fourth interface port; 1432-a fifth interface port; 1433-sixth interface port; 1434-a second preset;

144-a controller; 145-water inlet joint; 146-water outlet joint; 1471-a first valve; 1472-a second valve; 1473-a third valve; 148-an instant heater; 1491-a temperature sensor; 1492-water flow sensor;

2-a kettle;

31-a water inlet; 32-water receiver.

Description of the embodiments

The following description of the embodiments of the present utility model will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present utility model, but not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the utility model without making any inventive effort, are intended to be within the scope of the utility model.

It should be noted that, for example, the liquid feeding apparatus often forms a part of a certain product, and similarly, the horizontal liquid feeding device may also form a part of a certain product, so that it is not repeated in the embodiments of the present utility model whether the included part can implement a certain function without involving the structures or structures of the liquid feeding apparatus and the horizontal liquid feeding device.

Furthermore, such as liquid-feeding devices are provided with water inlet valves or water outlet valves, which serve as a technical basis, so that the technical conditions can be controlled, while certain functions can be "realized"; whether the product in which it is contained contains, for example, the controller 144 is not an implementation of the present utility model. It should be appreciated that the technical basis is not all of the contained product, and thus, for example, the outlet valve may be controlled in a systematic manner with regard to the technical conditions alone, and not with regard to the integrity. And, for example, solenoid valve, the opening and closing based on "switching value" belongs to the common sense in the art, based on the technical condition that the embodiment of the utility model provided, can foresee without need to pay creative work.

In addition, since there are few control points, the functions that can be implemented by the controller 144 can be implemented by means of the relay contact system, and thus, the implementation when the controller 144 is provided will be described in the following with emphasis, the person skilled in the art can implement it without inventive effort or how it can be implemented by means of the relay contact system.

It should be appreciated that, since the liquid feeding apparatus 14 is part of a structure of a product, the controller 144 is not included in the liquid feeding apparatus 14, and only terminals, such as a solenoid valve to be controlled, or a temperature sensor for sampling, are included in the liquid feeding apparatus 14, which are terminals of a control circuit. The content of the liquid feeding device 14, such as a solenoid valve, is conditional, not the whole content of the necessity.

In the description of the present utility model, it should be understood that the terms "upper", "lower", "left", "right", "front", "rear", "inner", "outer", and the like indicate orientations or positional relationships based on the orientations or relative positional relationships shown in the drawings, are merely for convenience in describing the present utility model and simplify the description, and do not indicate or imply that the devices or elements referred to must have a specific orientation, be configured and operated in a specific orientation, and thus should not be construed as limiting the present utility model. Unless otherwise specified, the above description of the azimuth may be flexibly set in the course of practical application in the case where the relative positional relationship shown in the drawings is satisfied.

The terms "first," "second," and the like, are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defining "a first" or "a second" may explicitly or implicitly include one or more such feature. In the description of the present utility model, unless otherwise indicated, the meaning of "a plurality" is two or more. In the description of the present utility model, it should be noted that, unless explicitly stated and limited otherwise, the terms "mounted," "connected," and "connected" are to be construed broadly, and may be, for example, fixedly connected, detachably connected, or integrally connected. Can be directly connected or indirectly connected through an intermediate medium, and can be communication between two elements. The specific meaning of the above terms in the present utility model can be understood by those of ordinary skill in the art according to the specific circumstances.

In embodiments of the present utility model, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, article, or apparatus. Without further limitation, an element defined by the phrase "comprising one does not exclude the presence of other like elements in a process, article or apparatus that comprises the element.

In embodiments of the utility model, words such as "exemplary" or "such as" are used to mean serving as an example illustration or description. Any embodiment or design described herein as "exemplary" or "e.g." in an embodiment of the present utility model is not to be taken as preferred or advantageous over other embodiments or designs. Rather, the use of words such as "exemplary" or "such as" is intended to present related concepts in a concrete fashion.

In view of the relatively detailed description of the related examples that follows, a description is given of a generalized, general structure or construction to facilitate understanding.

First, as shown in fig. 6, for example, the water inlet joint 145, the third valve 1473, the first multi-way joint 141, the second multi-way joint 143 of the water pump 142, the first valve 1471, and the water outlet joint 146 define a passage for water supply of the water kettle 2, for example, and a main pipeline is formed without considering the valve and the joints of the multi-way joint, and is a general configuration of a conventional liquid supply device. Under this condition, if there is no bypass, the water pump 142 is normally stopped when the first valve 1471 is closed, but the water with a certain kinetic energy is not naturally stopped, but continues to run along the main line due to inertia and is blocked by the first valve 1471, by means of which the water with a kinetic energy is dissipated, so that the first valve 1471 is subjected to a relatively large impact. The first valve 1471 is a so-called water outlet valve, and is controlled by a switch of a water outlet valve or a mechanical valve handle, and is not described herein in detail in view of the common knowledge in the art.

In the embodiment of the present utility model, as shown in fig. 4, a bypass is generated by means of the second multi-way connector 143 (illustrated as a three-way connector) and the first multi-way connector 141 (illustrated as a three-way connector), a second valve 1472 is installed on the bypass, the second valve 1472 is closed, that is, the bypass is not conducted currently, the water pump 142 is started and the first valve 1471 is opened, so that the main pipeline is used for supplying water. When the first valve 1471 is closed and the water pump 142 is stopped or delayed, the main pipeline is closed at the first valve 1471, and at this time, the second valve 1472 is opened, and flowing water flows back from the fifth port 1432 of the second multi-way connector 143, so that kinetic energy of the flowing water is gradually reduced.

The bypass return may be at a water source end corresponding to the water inlet joint 145, and whether the water pump 142 is stopped or not, it should be understood that the water pump 142 is, for example, a centrifugal pump, an axial flow pump, or the like, and the water pump 142 may be turned on even though the flow resistance of the water pump 142 is large in the stopped state. The flow of water is gradually stopped by the boundary friction and the pipe bending effect, after which the second valve 1472 is closed.

In some embodiments, the horizontal type liquid feeding device 10 is equipped with an instant heating type heater, which is called an instant heating type electric heater, basically configured as an electric heating tube, and the adapting tube is used for circulating liquid and heating the circulating fluid. In general, when the water pump 142 and the first valve 1471 are continuously operated, the instant heater is operated, the fluid is continuously heated, and if the water pump 142 is stopped, and at the same time, the first valve 1471 is closed, the water residing in the instant heater is further heated, so that the pressure in the main pipe is rapidly increased.

Under the condition that the bypass is configured, part of unheated fluid flows through the instant heater to cool the instant heater which stops heating, so that the resident water section is prevented from being continuously heated.

It should be appreciated that the instant heater can heat water to a target temperature during the process of flowing through the instant heater, so the power of the instant heater is usually relatively high, and even if the instant heater stops heating, the residual heat of the instant heater can still continuously heat the water. It will become very important to cool the instant heater.

Thus, in some embodiments, the water pump 142 is still operated, e.g., 2 seconds, after, e.g., the first valve 1471 is shut off, to ensure adequate cooling of the instant heater.

However, in some embodiments, such as each time the water supply is a metered water supply, the instantaneous heater may be stopped in advance, with residual heat sufficient to heat the remainder of the water pumped by the pump. For example, when 200ml of water is fed each time, when 180ml of water is fed, the instant heater stops heating, and the waste heat is utilized to heat the flowing water, and the flowing water is gradually cooled while being heated.

In addition, it is to be noted that when the instant heater is stopped, a part of the water that has been heated remains in the main pipe, for example, 10ml of water that has been heated to the target temperature remains in the main pipe at this time, and therefore, only 10ml of water that needs to be heated by the waste heat remains.

In most applications, for example, the water level sensor is usually arranged in the kettle 2, so that there is a certain hysteresis effect, and the water itself also has flying material, for example, if the water outlet joint 146 is positioned at the upper mouth of the kettle 2, part of the water is in a flying state, which is the first flying material. The amount of the first flying material can be determined based on a simple rule of thumb and adapted to the water level sensor.

Meanwhile, considering that the second flying material is not fed into the kettle 2 after being heated, for example, the second flying material does not need to be heated, and the instant heater stops in advance and does not influence the heating expectation of the water fed into the kettle 2. But the second flyer may be used for cooling the instant heater.

The technical scheme of the utility model is described in detail below with reference to the attached drawings of the specification:

in one aspect, as shown in fig. 1, an embodiment of the present utility model provides a horizontal type liquid feeding device 10, where the horizontal type liquid feeding device 10 may include a base 1 and a kettle 2. Illustratively, taking the example that the kettle 2 is located above one side of the base 1, the kettle 2 may be placed on the base 1, such that the kettle 2 may be supported by the base 1. In contrast, in some embodiments, for example, the spout 146 may be offset to extend upwardly on one side of the jug 2, and then cantilevered through a tap to feed water from the mouth of the jug 2 (with the lid lifted off if present).

Referring to fig. 2, fig. 2 is a schematic view of an exploded structure of the base 1 shown in fig. 1. The base 1 may include a housing 11 and a cover 12. Illustratively, the case 11 may include a bottom plate 111 and a side plate frame 112, the side plate frame 112 may be positioned at an upper side of the bottom plate 111, and a lower end of the side plate frame 112 may be connected with the bottom plate 111 along an edge of the bottom plate 111 to define a receiving chamber 113 having an upper side opening. Taking the longitudinal direction of the longer side of the bottom plate 111 as an example, a first through hole 114 may be formed at the rear side of the side plate frame 112, and the first through hole 114 may be communicated with the accommodating cavity 113. And the cover plate 12 may be coupled to the upper end of the side plate frame 112 along the edge of the opening (i.e., the circumference of the upper end of the side plate frame 112) to thereby close the receiving chamber 113 to close the device mounted in the protecting receiving chamber 113. Wherein, a second through hole 13 communicating with the accommodating cavity 113 can be formed on the cover plate 12. The bottom plate 111 and the side plate frame 112 may be integrally formed or may be separately formed and fixedly connected to each other by means of a fastening or screw, for example, without limitation.

As shown in fig. 3, the base 1 may further include a liquid feeding device 14, and the liquid feeding device 14 may be installed in the receiving chamber 113. Illustratively, the tapping apparatus 14 may include a first multi-way joint 141, a water pump 142, a second multi-way joint 143, and a controller 144. The first multi-way joint 141 may include a first interface end 1411, a second interface end 1412 and a third interface end 1413 that are respectively communicated in two pairs, and may be generally represented as a three-way pipe joint. One end of the first interface 1411 away from the second interface 1412 may pass through the first through hole 114 (as shown in fig. 2) from front to back, and the first multi-way joint 141 may be fixedly connected to the side plate frame 112 or the bottom plate 111. In this way, the first interface 1411 may be used to communicate with a first predetermined container such as a water tower, a water tub, etc. that may hold a liquid.

With continued reference to fig. 3, the second multi-way connector 143 may include a fourth port end 1431, a fifth port end 1432, and a sixth port end 1433, which are respectively connected in pairs, and may be represented as a three-way pipe connector. The sixth port 1433 may be connected to a second preset container, such as a kettle, a water cup, or the like, for containing a liquid, outside the base 1 through a second through hole 13 (as shown in fig. 2). The sixth interface 1433 may be configured to be in fluid communication with the second container, such as by being capable of adding fluid to the second container.

As shown in fig. 3, the water pump 142 may include a water pump body 1421 and a water inlet 1422 and a water outlet 1423, which are respectively in communication with the water pump body 1421. The water pump 142 may be an axial flow water pump or a centrifugal water pump, and is not limited thereto. For example, the water inlet end 1422 may be in communication with the second interface end 1412, the water outlet end 1423 may be in communication with the fourth interface end 1431, and the fifth interface end 1432 may be in communication with the third interface end 1413. The above communication mode can be used for communicating two ports through a pipeline, or one port can be directly sleeved on the other port so as to directly communicate the two ports, which is not limited.

As such, referring to fig. 3, the first multi-pass joint 141 may further include a first preset 1414, and the second multi-pass joint 143 may also include a second preset 1434. The exemplary first preset 1414 and second preset 1434 may be solenoid valves, respectively, and the corresponding first multi-way joint 141 and second multi-way joint 143 may be two-position three-way solenoid valves, respectively. The controller 144 may thus be electrically connected to the first preset 1414, the second preset 1434, and the water focus body 1421, respectively.

Therefore, when the tapping device 14 is in the tapping state, the controller 144 can control the first preset 1414 and the second preset 1434 to sequentially communicate the first interface 1411, the second interface 1412, the water inlet 1422, the water pump body 1421, the water outlet 1423, the fourth interface 1431 and the sixth interface 1433, and close the communication state between the fifth interface 1432 and the third interface 1413. Subsequently, the water pump body 1421 can be turned on by the controller 144 to pump the liquid in the first preset container into the second preset container communicated with the sixth interface end 1433 through the liquid feeding device 14, thereby being convenient and quick.

Alternatively, the first valve 1471, the second valve 1472, and the second multi-way junction 143 may be integrated into a two-position three-way valve, and the first multi-way junction 141 may be a junction on the main pipe, instead of forming an independent three-way valve.

When the liquid in the second preset container reaches the preset amount, the liquid is not required to be continuously added into the second preset container. The first preset 1414 and the second preset 1434 may be controlled by the controller 144 to close the first interface 1411 and the second interface 1412, and to communicate the third interface 1413 with the second interface 1412, and to close the fourth interface 1431 and the sixth interface 1433, and to communicate the fourth interface 1431 and the fifth interface 1432. In this way, the liquid in the internal pipe of the liquid feeding device 14 can circulate along the fourth interface 1431, the fifth interface 1432, the third interface 1413, the second interface 1412, the water pump 142 and the fourth interface 1431 in sequence. That is, the liquid feeding device 14 stops adding liquid to the second preset container, and meanwhile, the liquid in the pipeline inside the liquid feeding device 14 does not continuously impact the valve under the action of inertia, so that the problem that the pressure inside the pipeline of the liquid feeding device 14 is instantaneously increased when liquid feeding is stopped is avoided. The sealing communication performance of the internal pipeline of the liquid feeding device 14 is improved.

It should be noted that, when the controller 144 controls the first preset 1414 and the second preset 1434 to communicate the second interface 1412 with the third interface 1413, the fourth interface 1431 and the sixth interface 1433. The water pump body 1421 in communication with the controller 144 may be stopped at the same time or after a certain period of time. I.e., the water pump 142 is turned off after a preset time of operation, at which point the preset time may be greater than or equal to zero.

In some embodiments, when the first preset 1414 and the second preset 1434 are each solenoid valves, the number may be one or two. Illustratively, the second multi-way joint 143 is exemplified as:

if the second preset pieces 1434 are two and are all solenoid valves, the controller 144 may be electrically connected to the two solenoid valves, respectively. One of the solenoid valves may be in communication with the sixth interface 1433 and the other solenoid valve may be in communication with the fifth interface 1432. When the tapping apparatus 14 is in the tapping state, the solenoid valve in communication with the sixth interface port 1433 may be opened, and the solenoid valve in communication with the sixth interface port 1433 may be closed, so that the fourth interface port 1431 may be in communication with the sixth interface port 1433 at this time.

With respect to the controller 144, since there are very few control points and there is usually only one input point, such as a switch button provided on the base 1, and fewer than 10 output points, the intelligent elements such as the controller 144 may not be applied, and relay control may be adopted to form a relay contact system.

Insofar as the implementation logic is described in the context, it can be implemented by those skilled in the art without undue burden.

Furthermore, it has been described above that for example, the tapping device 14, which forms part of a product, for example, a water outlet valve, etc., it does not necessarily require that the tapping device 14 itself is provided with a complete control circuit, but that the solenoid valve merely indicates that it can be controlled on the basis of the solenoid, but that such a technical condition is provided that the switching on or off of the corresponding line can be achieved on the basis of the control of the opening and closing of the solenoid valve, as will be clear to a person skilled in the art.

As to how to arrange in the contained product, this is not a matter of consideration for the tapping device 14. Just as the manufacturer who sells the solenoid valve, the applicable technical scheme does not need to be provided for customers who use the solenoid valve.

Further, if the second preset 1434 is a solenoid valve, it may be electrically connected to the controller 144. At this time, the axis of the fifth interface port 1432 is collinear with the axis of the sixth interface port 1433, and a corresponding solenoid valve may be installed between the fifth interface port 1432 and the sixth interface port 1433 in the flow direction of the liquid. The solenoid valve has two operating states, when the solenoid valve is energized in a first operating state, the solenoid valve may be positioned within the sixth inlet port 1433 such that the fourth port 1431 may be in communication with the third port 1413 via the fifth port 1432, and when the solenoid valve is de-energized in a second operating state, the solenoid valve may be positioned within the fifth port 1432 such that the fourth port 1431 may be in communication with the sixth port 1433 and the fifth port 1432 is closed. The on-off state of the electromagnetic valve in the two states can be replaced, and the on-off state is not limited.

Different from a relay contact system, a circuit containing intelligent elements such as a controller, a singlechip and the like can realize more complex control because programs can be filled in the controller and the singlechip. However, for the art of this patent, because of the relatively simple control, such as solenoid valves, instant heaters, water pump 142, etc., in some embodiments may be simple on-off control, while in somewhat complex applications, such as water pump 142 may be stopped at a predetermined time after, for example, first valve 1471 is closed, and may be implemented using a time relay without programming.

Regarding the water supply amount, as well, some relays may realize a delay of ten minutes, and it is obvious that the water supply device 14 according to the embodiment of the present utility model does not need such a long delay, and may supply water for only ten seconds, so that the time relay on the market can completely satisfy the control of the water supply time, for example, while the pump speed of the water pump 142 is substantially constant, and a predetermined amount of water can be supplied each time based on the relationship between time and pump speed.

With respect to certain controls, such as temperature control, comparators may be incorporated without programming.

In contrast, after the introduction of the smart component, the number of relays can be used less, and thus can have a smaller circuit area.

Typically, fig. 8 shows the control circuit of the water pump and the electromagnetic valve as a relay contact system, and the relay is not used in the drawing, which is a simpler control circuit, and connectors XH1 and XH2 can be connected to the water pump 142 and the electromagnetic valve, i.e. the output driving end. Diodes D7 and D8 and capacitors C8 and C9 are used to provide a steady 12V dc current, MOS transistors Q4 and Q5 are used for current driving, and a steady driving current is provided, one control circuit such as model LMBT3906 is used to drive the water pump 142 or solenoid valve. The key point is the switching value output by the joints XH1 and XH2 to control the water pump 142 or the solenoid valve.

In the case where the first multi-way connector 141 is a two-position three-way solenoid valve, the opening and closing of the first interface end may be controlled only by the first preset member 1414. In addition, the first preset 1414 may also be a water flow sensor and electrically connected to the controller 144. For example, the water flow sensor may be in communication with the first interface port 1411 for detecting whether liquid is flowing through the first interface port. In addition, the water flow sensor may also be connected to the second interface 1412, so that the liquid in the liquid feeding device 14 always flows through the second interface 1412, so as to detect whether the liquid in the internal pipeline of the liquid feeding device 14 flows in real time.

It should be noted that, in the above embodiment, the liquid feeding apparatus 14 may also include a three-way joint, where a first end of the three-way joint may be connected to the second interface 1412 and may seal the third interface 1413. The second end of the tee joint may be in communication with the water inlet 1422, and the third end of the tee joint may be in communication with the fifth interface 1432, as well as achieve the above-described effects.

Furthermore, in some embodiments, as shown in fig. 4, the tapping apparatus 14 may also include a water inlet connection 145, a first multi-way connection 141, a water pump 142, a second multi-way connection 143, a controller 144, a water outlet connection 146, a first valve 1471, and a second valve. Illustratively, one end of the water inlet connector 145 may pass through the first through hole 114 (as shown in fig. 2) from front to back and be connected to the side plate frame 112, so that the end of the water inlet connector 145 located outside the receiving cavity 113 may be connected to the first preset container through a pipe to draw out the liquid in the first preset container. Correspondingly, the other end of the water inlet connector 145 may be in communication with the first interface end 1411. In addition, the second interface 1412 may be in communication with the water inlet 1422, the water pump body 1421, the water outlet 1423, the fourth interface 1431, the sixth interface 1433, the first valve 1471, and the water outlet 146. And, the fifth interface port 1432 may also communicate with the third interface port 1413 through a second valve 1472.

For example, if the first valve 1471 and the second valve 1472 are each solenoid valves. Referring to fig. 4, a controller may be electrically connected to the first solenoid valve 1471, the second solenoid valve 1472, and the motor body 1421, respectively. In the direction of flow of the liquid, since the first valve 1471 is installed between the water outlet joint 146 and the second multi-pass joint 143, and the second valve 1472 is installed between the second multi-pass joint 143 and the first multi-pass joint 141. Accordingly, the first valve 1471 and the second valve 1472 may be controlled by the controller 144 to communicate the outlet fitting 146 with the sixth interface port 1433 or to communicate the fifth outlet port 1432 with the third interface port 1413, respectively. In the above embodiment, the water inlet joint 145 may have two independent structures with the first multi-way joint 141. In this way, after the water inlet structure 145 is installed at the edge of the first through hole 114, the installation position of the first multi-way joint 141 can be flexibly set, and the water inlet joint 145 and the first interface end 1411 are communicated through the pipeline. In addition, the water inlet connector 145 may be integrally formed with the first multi-way connector 141, or the water inlet connector 145 may be fixedly linked with the first interface end 1411. That is, the water inlet joint 145 is the end far from the second interface end 1412, corresponding to the first interface end 1411, and is the end near to the second interface end 1412, which has a simple structure.

In some embodiments, as shown in fig. 2, since the cover plate 12 is provided with the second through hole 13 communicating with the receiving chamber 113. Referring to fig. 5, the water outlet connector 146 may be passed through the second through hole 13 of the cover plate 12 in the up-down direction and connected with the cover plate 12 along the edge of the second through hole 13. In this way, the lower end of the water outlet connector 146 may be in communication with the sixth interface end 1433 (as shown in fig. 4) through a hose, and in addition, the water outlet connector 146 may also be in an integral structure with the second multi-way connector 143, that is, the lower end of the water outlet connector 146 may be fixedly connected with the sixth interface end 1433. Correspondingly, a water inlet 31 can be formed in the bottom wall of the kettle 2, and the horizontal type liquid feeding device 10 can further comprise a water receiver 32 which is hermetically arranged with the side wall of the water inlet 31 along the up-down direction.

Thus, when the water bottle 2 is close to the cover plate 12 from top to bottom, and the upper end of the water outlet connector 146 is inserted into the lower end of the water receiver 32, and the bottom wall of the water bottle 2 is close to or even attached to the upper side wall of the cover plate 12, the water feeding device 14 can be communicated with the water bottle 2 through the water outlet connector 146 and the water receiver 32. So that the liquid in the first predetermined container is pumped into the kettle 2 by opening the first valve 1471, closing the second valve 1472 and opening the water pump 142. Wherein the second preset container may comprise a kettle 2.

The water inlet 31 shown in fig. 5 is positioned at an opening in the bottom wall of the kettle 2, the water inlet 31 is provided with a water receiver 32 in a liquid-tight manner through a rubber sleeve, the lower end of the water receiver 32 is provided with a mouth part which is spliced with the water outlet joint 146, and the mouth part is provided with an inverted cone in the middle for guiding the water outlet joint 146 to be clamped in.

In some embodiments, the water receiver 32 is provided with a one-way valve that is turned on in one direction upwards at the water inlet 31 to reduce or eliminate backflow.

In other embodiments, an upwardly extending water conduit may be mounted on the upper side of the cover plate 12, the lower end of the water conduit may be in communication with the upper end of the water outlet fitting 146, and the other end of the water conduit may extend upwardly and then bend downwardly so that the water outlet at this end may face downwardly. Thus, a water receiving opening can be formed above the water kettle 2, and the water kettle 2 is placed close to the water conduit so that the water receiving opening is aligned with the water outlet, and the liquid feeding device 14 can add liquid into the water kettle 2 through the water outlet of the water conduit.

In the process of changing the priming state of the priming device 14 from priming to stopping, the first valve 1471 needs to be closed, and the second valve 1472 needs to be opened, so that the liquid in the pipeline of the priming device 14 can circulate. To avoid that liquid in the pipeline of the liquid feeding device 14 is sucked in by the water inlet joint 145 continuously during the circulating flow

Illustratively, as shown in FIG. 6, the tapping apparatus 14 may further comprise a third valve 1473, wherein the third valve 1473 may be installed between the water inlet fitting 145 and the first multi-way fitting 141 in the flow direction of the liquid and communicate with the water inlet fitting 145 and the first interface port 1411, respectively. The communication may be direct communication or may be performed through a pipe, which is not limited. Corresponding to

The third valve 1473 may be a solenoid valve and may be electrically connected to the controller 144. Taking the third valve 1473 as an example of a solenoid valve, the controller 144 may open the second valve 1472 and close the first valve 1471 and the third valve 1473 when the tapping device 14 needs to stop tapping. As such, the liquid in the liquid feeding device 14 can circulate along the second interface 1412, the water inlet 1422, the water pump body 1421, the water outlet 1423, the fourth interface 1431, the fifth interface 1432, the second valve 1472, the third interface 1413, and the second interface 1412. In addition, during the circulation process, the first interface 1411 does not additionally draw the liquid in the first preset container to be circulated. After the water pump body 1421 is operated for a preset time, the water pump body may be turned off by the controller 144, and the preset time may be greater than or equal to zero based on the opening of the second valve 1472.

In addition, the third valve 1473 may be installed at an end of the water inlet joint 145 away from the first multi-way joint 141 in the flow direction of the liquid, and communicate with the water inlet joint 145, and the above effect may be achieved as well. In some embodiments, the third valve 1473 may also be a one-way valve, such as to allow fluid to flow only from the inlet fitting 145 in the direction of the first multi-fitting 141, thereby preventing fluid in the tapping apparatus from flowing back into the first predetermined container.

In other embodiments, the first valve 1471, the second valve 1472, and the third valve 1473 may all be solenoid valves, or may be partially solenoid valves, or may not even be solenoid valves. The above functions can be realized by only manual operation, and are not limited thereto.

For example, the first valve 1471, the second valve 1472, and the third valve 1473 may be solenoid valves, respectively. The corresponding first valve 1471 and second valve 1472 may be directly connected to the sixth interface 1433 and the fifth interface 1432, respectively, and installed to form an integrated structure, so as to form a two-position three-way solenoid valve with the second multi-way connector 143, so that the fourth interface 1431 may be respectively communicated with the fifth interface 1432 or the sixth interface 1433. Furthermore, the first valve 1471, the second valve 1472, and the second multi-way joint 143 may be separate components, and may be connected by pipes or direct screw connections. The third valve 1473 may be directly connected to the first port 1411 and integrally installed to form a three-way pipe with one solenoid valve with the first manifold 141, or may be separate and connected components. This is not limited thereto.

In daily use, the tapping device 14 generally requires the addition of a liquid of a preset temperature into a second preset container, i.e. the jug 2.

Based on this, as shown in fig. 7, the liquid feeding apparatus 14 may further include an instant heating type heater 148 as an example, the instant heating type heater 148 may be installed between the second multi-pass joint 143 and the water pump 142 in the flow direction of the liquid, and the instant heating type heater 148 may be respectively communicated with the water outlet end 1423 and the fourth interface end 1431. Thus, when the tapping device 14 is in the tapping state, during the process of tapping the liquid from the tapping point 1423 and flowing to the fourth interface 1431 via the instant heater 148, the flowing liquid can be heated by the instant heater 148 so that the liquid flowing into the kettle 2 (as shown in fig. 5) can reach the preset temperature, so as to facilitate tea making or direct drinking of the liquid at the preset temperature.

However, in the case where the loading apparatus 14 further includes the instant heater 148. In the related art, when the liquid feeding device 14 stops feeding liquid, the instant heater 148, the water pump 142 and even the first valve 1471 are directly turned off. Since the liquid in the piping of the liquid feeding apparatus 14 stops flowing, the temperature of the liquid flowing into the instant heater 148 is rapidly increased by the residual heat of the instant heater 148, and even exceeds the boiling point of the liquid, thereby generating a large amount of steam. In this way, the internal pressure in the lines of the tapping device 14 is greatly increased, thereby breaking the sealed communication structure between the various lines in the tapping device 14.

In order to avoid this, in the embodiment of the present utility model, the first valve 1471 and the second valve 1472 are installed. When the tapping device 14 is in the tapping state, the second valve 1472 may be closed and the first valve opened to extract and add the liquid in the first preset container to the kettle 2 through the tapping device 14, and heat the liquid extracted into the kettle 2 through the instant heater 148 to reach the preset temperature. In addition, when the tapping device 14 stops tapping water, the first valve 1471 and the instant heater 148 may be closed and the second valve 1472 may be opened, while the water pump 142 is turned off with a delay, so that the water pump 142 continues pumping water for a preset time. Here, the preset time is greater than zero. In this way, the liquid in the pipeline of the liquid feeding device 14 cannot flow out continuously through the water outlet joint 146 and can circulate in the pipeline of the liquid feeding device 14 along the instant heating type heater 148, so that the liquid in the pipeline of the liquid feeding device 14 can sufficiently cool the waste heat of the instant heating type heater 148, scalding or even explosion accidents caused by local overhigh temperature are avoided, and the safety of the heated liquid feeding device 14 is greatly improved. Moreover, due to the timely closing of the first valve 1471, the process of water feeding from the water outlet joint 146 can be stopped immediately by the water feeding device 14, that is, the user does not need to wait for taking out the second preset container such as the water kettle, and the like, which is very convenient.

In other embodiments, when the first valve 1471, the second valve 1472, and the third valve 1473 are all solenoid valves, the first valve 1471, the water pump 142, and the instant heater 148 may be controlled to be closed and the second valve 1472 and the third valve 1473 may be simultaneously opened when the water supply to the liquid feeding device 14 is stopped. In this way, the liquid in the line of the tapping device 14 can flow under the influence of inertia forces via the tapping fitting 145 to the first preset reservoir. Even though the residual heat of the instant heater 148 may vaporize a portion of the liquid, the pressure within the piping of the liquid feeding apparatus 14 may be discharged through the water inlet fitting 145 so as not to increase the piping pressure of the liquid feeding apparatus 14.

It should be noted that, in the above embodiment, the first preset container is typically a container for holding liquid, such as a water bucket, and the water inlet joint 145 is not prevented from discharging liquid or gas. Also, the above-described embodiments may be applied to a case where the liquid feeding device 14 is not provided with the third valve 1473 and/or the instant heater 148. This is not limited thereto.

For example, as shown in fig. 7, the instant heater 148 may include a first port 1481 and a second port 1482, and a heating conduit (not shown) may be connected between the first port 1481 and the second port 1482 for connecting the first port 1481 and the second port 1482, wherein the first port 1481 may be connected to the water outlet port 1423 and the corresponding second port 1482 may be connected to the fourth port 1431. Also, the instant heater 148 may further include a heating device 1483 encasing the heating conduit, the heating device 1483 being electrically connected to the controller 144 and energized to rapidly heat the liquid flowing through the heating conduit. In addition, the heating device 1483 may be mounted directly within the heating conduit as long as it is capable of rapidly heating the liquid flowing through the instant heater 148. The present utility model is not limited to the specific structure of the instant heater 148.

In some embodiments, to facilitate controlling the outlet water temperature of the tapping device 14, referring to fig. 7, the tapping device 14 may further include a temperature sensor 1491, the temperature sensor 1491 may be mounted between the instantaneous heater 148 and the outlet water connector 146 along the flow direction of the liquid, and the temperature sensor 1491 may also be electrically connected to the controller 144. In this way, the controller 144 may receive the temperature of the liquid flowing out from the water outlet 146 through the temperature sensor 1491, and when the detected temperature is greater than the preset temperature, the controller 144 may increase the operation power of the water pump 142 to increase the liquid outlet speed, thereby reducing the liquid outlet temperature. Conversely, the operating power of the water pump 142 can be correspondingly reduced to reduce the liquid outlet speed, so as to increase the liquid outlet temperature. In addition, the temperature of the liquid outlet can also be adjusted by adjusting the heating power of the heating device 1483. For example, as shown in fig. 7, a temperature sensor 1491 may be mounted between the instant heater 148 and the fourth interface end 1431 in the flow direction of the liquid for detecting the temperature of the liquid exiting the instant heater 148. In addition, a temperature sensor 1491 may be installed between the sixth interface end 1433 and the outlet port 146 to facilitate detection of the temperature of the liquid flowing out of the outlet port 146. Alternatively, the number of the temperature sensors 1491 may be two, and may be installed near the instantaneous heater 148 and the water outlet joint 146, respectively. This is not limited thereto. In the case where the loading device 14 includes the temperature sensor 1491 mounted near the instant heater 148. In the process of stopping feeding, the controller 144 can also detect the temperature of the liquid discharged from the instant heater 148 in real time through the temperature sensor 1491, and when the temperature of the liquid discharged is lower than a preset temperature (e.g. 40-60 c), the controller 144 controls the water pump 142 to be turned off.

In some embodiments, to avoid breakage problems caused by dry heating of the instant heater 148 by actuation of the tapping device 14 when the tapping fitting 145 is unable to tap liquid from the first preset container. With continued reference to fig. 7, the tapping apparatus 14 may further include a water flow sensor 1492 and the water flow sensor 1492 may be electrically connected to a controller. The water flow sensor 1492 may be installed between the water inlet joint 145 and the first interface 1411 or the second interface 1412 and the water pump 142 in the flow direction of the liquid when the water flow sensor 1492 is installed. For example, the water flow sensor 1492 may be a non-contact sensor that clamps and attaches to the outer sidewall of the corresponding tubing. In addition, the water flow sensor 1492 may be a contact sensor, that is, two ends of the water flow sensor 1492 may be respectively connected to the water inlet 145 and the first interface 1411, or respectively connected to the second interface 1412 and the water pump 142. The flow rate of the liquid flowing through the water pump 142 can be detected, which is not limited.

Thus, during the priming process of the apparatus 14, if the controller 144 receives insufficient fluid to the pump 142 via the flow sensor 1492, the instant heater 148 may be turned off in time. Thereby avoiding dry heating of the instant heater 148 due to insufficient or no fluid flowing through the instant heater 148. That is, a large amount of steam is not generated in the pipeline of the liquid feeding device 14, and the sealing communication structure of the pipeline is damaged, and even the instant heating type heater 148 is burnt out at a high temperature.

It should be noted that, in the above embodiment, the water flow sensor 1492 may accurately detect the flow rate of the flowing liquid, or may simply detect whether the flowing liquid flows through, so as to achieve the above functions. In addition, the liquid feeding device 14 provided in the embodiment of the present utility model may be applied to the horizontal liquid feeding apparatus 10, and may also be applied to other liquid feeding apparatuses, which is not limited thereto.

On the other hand, the embodiment of the utility model also provides a control method of the liquid feeding device 14, which is used for controlling the liquid feeding device 14 in the previous aspect. For example, where the tapping apparatus 14 includes an instant heater 148, the control method may include:

the first valve 1471 is opened and the second valve 1472 is closed, and then the water pump 142 and the instant heater 148 are activated to add the liquid at the preset temperature to the second preset vessel.

The second valve 1472 is opened and the first valve 1471 and the instant heater 148 are closed, and the water pump 142 is controlled to operate for a preset time, and then the water pump is turned off, wherein the preset time is greater than zero.

For example, the preset time may be any time from 2 to 10s, and the temperature of the effluent of the instant heater 148 is only required to be less than the boiling point, which is not limited. In addition, the controller 144 may be programmed with a corresponding program to implement the control method described above, or the first valve 1471, the second valve 1472, the water pump 124, and the instant heater 148 may be manually operated, which is not limited. Since the control method is used for controlling the liquid feeding device 14 in the above aspect, the two devices can solve the same technical temperature and achieve the same technical effect, and the description thereof is omitted herein.

It should be noted that many people in life touch mechanical valves, such as mechanically actuated two-position three-way valves, and control such valves by operating a valve stem in a suitable manner, such as by pressing, lifting, or rotating. When the water pump 142 is not required as a water supply means, for example, a water tub serving as a water source is located at a high position, the water feeding device 14 can feed water by gravity, and at this time, the water feeding device can be free from any control circuit under the condition that the water feeding device does not take heating into consideration.

It should be appreciated that all control logic may be implemented with a relay contact system during times when no controller or other industrial smart component is present, and that the previously more complex relay contact system may be implemented by the controller based on simple logic as the smart component is put into service, thereby reducing the overall area of the circuit. However, it should also be appreciated that for very simple applications of control logic, such as switching of valves, start and stop of heating, etc., the use of a relay contact system has a better application prospect, although, for example, a single-chip microcomputer only has a purchase unit price of several to tens of money, and for example, a solid-state relay only has a price of several minutes to two gross money.

In other embodiments, the method of controlling the tapping apparatus 14 may further include:

The first valve 1471 is opened and the second valve 1472 is closed, followed by the activation of the water pump 142 and the instant heater 148 to add the liquid at the preset temperature to the second preset vessel.

The second valve 1472 is opened and the first valve 1471, the water pump 142, and the instant heater 148 are closed to communicate the water inlet fitting 145 with the instant heater 148.

The control method is identical to the control method described above for the feeding process of the feeding device 14. However, when stopping feeding, the first valve 1471 may be closed to prevent the liquid from flowing out of the water outlet 146, and the second valve 1472 may be opened to connect the water inlet 145 to the instant heater 148. In this way, even if the water pump 142 is turned off, the liquid in the pipe of the liquid feeding apparatus 14 can flow to the first preset tank through the water inlet joint 145 by the inertial force. Even though the residual heat of the instant heater 148 may vaporize a portion of the liquid, the pressure within the piping of the liquid feeding apparatus 14 may be discharged through the water inlet fitting 145 so as not to increase the piping pressure of the liquid feeding apparatus 14.

The above description of the method of controlling the filling is for the understanding and implementation of the further product contained in the filling device 14 by a person skilled in the art, and does not represent that the filling device 14 needs to be provided with all the structures or configurations for implementing the method of controlling the filling.

In the description of the present specification, a particular feature, structure, material, or characteristic may be combined in any suitable manner in one or more embodiments or examples.

The present utility model is not limited to the above embodiments, and any changes or substitutions that can be easily recognized by those skilled in the art within the technical scope of the present utility model should be included in the scope of the present utility model. The protection scope of the utility model shall therefore be subject to the protection scope of the claims.

Claims

1. A liquid feeding apparatus, comprising:

the water inlet end is used for being connected with a water source device;

a water pump disposed on the main pipeline;

2. The liquid feeding apparatus according to claim 1, wherein the main reversing valve is a two-position three-way valve or a three-position three-way valve;

3. The liquid feeding apparatus according to claim 2, wherein the main direction valve is an electromagnetic direction valve;

4. The liquid feeding apparatus according to claim 1, wherein the main pipe is provided with an instant heater;

5. The tapping apparatus according to claim 4, wherein the instant heater is located on the first pipe section.

6. The liquid feeding device according to claim 5, wherein if the water outlet valve, the loop valve and the main reversing valve are electromagnetic valves, the sub-circuit of the corresponding liquid feeding device or the total circuit of the horizontal liquid feeding apparatus contained in the liquid feeding device is a relay contact system or a total circuit containing an intelligent unit;

7. The liquid feeding apparatus as claimed in claim 4, wherein a temperature sensor is provided at a rear stage of the instant heater on the main pipe in a water feeding direction.

8. The liquid feeding apparatus as claimed in claim 4, wherein a water flow sensor is provided on the main pipe.

9. The tapping device according to claim 1, wherein a water inlet valve is provided on the second pipe section, the water inlet valve being interposed between the location of the return connection of the circuit on the main pipe and the water inlet end.

10. The utility model provides a horizontal liquid feeding device which characterized in that includes the base, this base includes:

the liquid feeding device according to any one of claims 1 to 9, wherein the liquid feeding device is installed in the accommodating cavity, and the water inlet end is located at the first through hole and connected with the shell and is inserted into the shell through the first through hole; and

11. The horizontal type liquid feeding device as set forth in claim 10, further comprising a water bottle, wherein the bottom of the water bottle is provided with a water inlet;

the cover plate is used for supporting the kettle;

12. The horizontal type liquid feeding device according to claim 11, wherein a one-way valve which takes the water inlet as a valve cavity and is communicated upwards in a one-way is formed at the water inlet.

13. The horizontal type liquid feeding device as set forth in claim 11, wherein a liquid level sensor is provided in the water kettle.