CN212996048U - Drive assembly and water dispensers of water dispensers - Google Patents

Abstract

The application relates to drive assembly and water dispensers of water dispensers, drive assembly includes: the water pump is provided with a third inlet and a third outlet, and the third outlet is used for being connected with a heater of the water boiler; a water-locking component having at least a first state and a second state; in the first state, the water locking component is used for conducting the connection between the third outlet and the heater, and in the second state, the water locking component is used for cutting off the connection between the third outlet and the heater. By arranging the water locking component, when the water locking component is in the first state, the third outlet is communicated with the heater, and at the moment, liquid entering the water pump can enter the heater through the third outlet under the action of the suction force of the water pump; the water locking component can be in a second state, and the water locking component can disconnect the third outlet of the water pump from the heater, so that the risk that steam and liquid in the heater flow backwards under the action of pressure to enter the water pump or even overflow is prevented, and the water boiler can work normally.

Description

Drive assembly and water dispensers of water dispensers

Technical Field

The application relates to the technical field of household appliances, in particular to a driving assembly of a water boiler and the water boiler.

Background

The water dispenser is used for heating cold water into hot water with a preset temperature and comprises a heater and a water pump, wherein the water pump is used for pumping water from an external water source into the heater, and the heater is used for heating the water to the preset temperature. When the temperature of the heater reaches the boiling temperature of water, the water in the heater boils to generate a large amount of steam, so that the air pressure in the heater is increased, the higher air pressure forms a reverse thrust force on the suction action of the water pump to offset the suction force of the water pump, the water pump cannot effectively suck the water into the heater to influence the normal use of the water dispenser, and when the air pressure is higher, the water and the steam in the heater have the risk of flowing back to enter the water pump or even overflowing the water dispenser under the action of pressure to influence the normal use of the water dispenser.

SUMMERY OF THE UTILITY MODEL

The application provides a drive assembly and water dispensers of water dispensers, can reduce the risk that steam and liquid refluence in the heater get into the water pump and even overflow.

The present application provides in a first aspect a drive assembly for a water boiler, the drive assembly comprising: the water pump is provided with a third inlet and a third outlet, and the third outlet is used for being connected with the heater of the water boiler; a water-locking component having at least a first state and a second state; in the first state, the water locking member is configured to open the connection between the third outlet and the heater, and in the second state, the water locking member is configured to cut off the connection between the third outlet and the heater by a pressure in the heater.

By arranging the water locking component, when the water locking component is in the first state, the third outlet is communicated with the heater, and at the moment, liquid entering the water pump can enter the heater through the third outlet under the action of the suction force of the water pump, so that the liquid is heated in the heater; after the heater heats a period of time, reach the boiling point of liquid, at this moment, produce a large amount of steam in the heater, thereby increase the pressure in the heater, this pressure is opposite with the suction effect of water pump, it has the risk that the refluence got into the water pump to lead to steam and the liquid in the heater, lock water part this moment can be in the second state, this lock water part can be with the third export of water pump and the disconnection of being connected between the heater, thereby prevent steam and the liquid in the heater refluence under the pressure effect and get into the risk that the water pump spilled over even, make the water dispensers can normally work.

In one possible design, the water locking component comprises a blocking part arranged in the third outlet, and the third outlet is internally provided with an abutting surface; in the first state, the blocking portion abuts against the abutting surface to block the third outlet; in the second state, a preset distance is reserved between the blocking part and the abutting surface so as to open the third outlet. The movement through the shutoff portion realizes switching on or cutting off between water pump and the heater, and the movement of shutoff portion relies on the suction of water pump and the pressure drive of steam, need not to set up other drive assembly, has simple structure's advantage, and along with the change of steam pressure in the heater, can drive the movement of shutoff portion fast, consequently, this water locking part has the higher advantage of sensitivity to can effectively prevent that liquid from spilling over.

In a possible design, the water locking component further comprises a connecting part, one end of the connecting part is connected with the blocking part, and the other end of the connecting part is connected with the water pump. When the plugging part is connected to the water pump through the connecting part, the stability and the reliability of the movement of the plugging part can be improved, and the plugging part is prevented from leaving the third outlet under the action of suction force.

In a possible design, a fourth cavity is arranged in the blocking part, a first through hole is formed in the side wall of the fourth cavity, one end of the connecting part extends into the fourth cavity and can move in the fourth cavity, and therefore the blocking part can move relative to the connecting part. The plugging portion is connected with the cover body of the water pump through the connecting portion, and meanwhile, the plugging portion can move in the height direction while being connected with the cover body so as to plug or open the third outlet, and the plugging portion and the connecting portion need to move relatively in the height direction. Therefore, the fourth cavity for moving the connecting part is arranged in the blocking part, so that the third outlet can be blocked or opened, and the movement reliability of the blocking part can be improved.

In one possible design, the connecting portion has a stopper end, and the stopper end is located in the fourth cavity; the size of the limiting end is larger than that of the first through hole so as to limit the plugging portion from being separated from the connecting portion. When the water locking component is in the second state, the plugging part moves towards the direction far away from the abutting surface under the action of the hydraulic pressure of liquid in the water pump, and in the moving process, the plugging part is limited to be separated from the connecting part through the limiting end, so that the moving reliability of the plugging part is improved.

In one possible design, the water pump comprises a cover body provided with a second through hole; the connecting portion further comprises a fixed end, and the fixed end is fixed to the second through hole.

In one possible design, at least part of the occlusion is spherical; the abutting surface is a spherical surface matched with the plugging part. In the first state, the cooperation reliability between shutoff portion and the butt face is higher to improve the shutoff effect, prevent effectively that steam from in getting into the water pump between shutoff portion and the butt face, improve the reliability of locking water.

In one possible design, the water-locking component includes a one-way valve disposed between the third outlet and the heater; liquid in the water pump can enter the heater through the one-way valve. This check valve's setting for liquid in the water pump can get into in the first cavity of heater through the check valve that switches on, but, in liquid and the unable entering water pump of steam in the first cavity, thereby prevent that liquid and the steam refluence in the heater from leading to the risk that overflows.

In one possible design, the check valve includes a valve core and a valve seat, the valve seat has a valve cavity, the valve cavity has a valve port, and the valve port is communicated with the third outlet; the valve core is positioned in the valve cavity and can move in the valve cavity; in the first state, the valve core opens the valve port, and in the second state, the valve core blocks the valve port. The check valve with the structure has the advantage of simple structure.

The present application in a second aspect provides a water boiler, comprising: a housing assembly; a drive assembly mounted within the housing assembly; a heater mounted within the housing assembly; wherein, the drive assembly is the drive assembly described above.

It is to be understood that both the foregoing general description and the following detailed description are exemplary and explanatory only and are not restrictive of the application.

Drawings

FIG. 1 is a schematic structural view of a water boiler provided by the present application in one embodiment;

FIG. 2 is a cross-sectional view of FIG. 1;

FIG. 3 is an exploded view of FIG. 1;

FIG. 4 is a schematic view of the cover assembly of FIG. 1 with the cover removed;

FIG. 5 is an exploded view of the heater of FIG. 4;

FIG. 6 is a cross-sectional view of FIG. 4;

FIG. 7 is a schematic structural diagram of the driving assembly of FIG. 3 in a first embodiment;

FIG. 8 is an exploded view of FIG. 7;

FIG. 9 is an exploded view of the water locking feature of FIG. 8 in one embodiment;

FIG. 10 is a schematic structural view of the cover in FIG. 8;

FIG. 11 is a cross-sectional view of the cover of FIG. 8 with the water-locking feature in a first state;

FIG. 12 is an enlarged view of a portion I of FIG. 11;

FIG. 13 is a cross-sectional view of the cover of FIG. 8 with the water-locking feature in a second state;

FIG. 14 is an enlarged view of a portion II of FIG. 13;

FIG. 15 is a schematic view of the driving assembly and the heater of FIG. 3;

FIG. 16 is a partial exploded view of the drive assembly of FIG. 3 in a second embodiment;

FIG. 17 is the cross-sectional view of FIG. 15 with the water-blocking member in the first state;

FIG. 18 is an enlarged view of a portion III of FIG. 17;

FIG. 19 is the cross-sectional view of FIG. 15 with the water-blocking member in a second state;

fig. 20 is a partial enlarged view of the portion IV of fig. 19.

Reference numerals:

1-a housing assembly;

2-a cover assembly;

21-a water inlet;

3-a base;

4-a heater;

41-a housing;

42-a support member;

421-a first cavity;

422-first inlet;

423-first outlet;

424-bumps;

425-a flow channel;

426-a third cavity;

427-a second water inlet pipe;

428-second outlet pipe;

43-a heating means;

44-a contact assembly;

5-a drive assembly;

51-a water pump;

511-a first inlet pipe;

512-a first water outlet pipe;

513-third inlet;

514-a third outlet;

514 a-abutment surface;

515-a cover;

515 a-second via;

52-a water-lock feature;

521-a blocking part;

521 a-a first through hole;

521 b-a fourth cavity;

522-a connecting part;

522 a-fixed end;

522 b-stop end;

522 c-connecting segment;

523-one-way valve;

523 a-valve core;

523 b-valve seat;

523 c-elastic member;

523 d-valve cavity;

523 e-valve port;

6-liquid outlet part;

62-a second outlet;

7-telescoping assembly.

The accompanying drawings, which are incorporated in and constitute a part of this specification, illustrate embodiments consistent with the present application and together with the description, serve to explain the principles of the application.

Detailed Description

For better understanding of the technical solutions of the present application, the following detailed descriptions of the embodiments of the present application are provided with reference to the accompanying drawings.

It should be understood that the embodiments described are only a few embodiments of the present application, and not all embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present application.

The terminology used in the embodiments of the present application is for the purpose of describing particular embodiments only and is not intended to be limiting of the application. As used in the examples of this application and the appended claims, the singular forms "a", "an", and "the" are intended to include the plural forms as well, unless the context clearly indicates otherwise.

It should be understood that the term "and/or" as used herein is merely one type of association that describes an associated object, meaning that three relationships may exist, e.g., a and/or B may mean: a exists alone, A and B exist simultaneously, and B exists alone. In addition, the character "/" herein generally indicates that the former and latter related objects are in an "or" relationship.

It should be noted that the terms "upper", "lower", "left", "right", and the like used in the embodiments of the present application are described in terms of the angles shown in the drawings, and should not be construed as limiting the embodiments of the present application. In addition, in this context, it will also be understood that when an element is referred to as being "on" or "under" another element, it can be directly on "or" under "the other element or be indirectly on" or "under" the other element via an intermediate element.

The embodiment of the application provides a water boiler and a heater 4 of the water boiler, which are used for a water dispenser to heat water into boiled water, and the water boiler can also be used for heating other liquids. As shown in fig. 1 to 3, the water boiler includes: the liquid-boiling water heating device comprises a shell assembly 1, a cover body assembly 2, a base 3, a heater 4, a driving assembly 5, a liquid outlet component 6 and a telescopic assembly 7, wherein the shell assembly 1 is provided with an inner cavity and an opening, the cover body assembly 2 can cover the opening so as to block the inner cavity of the shell assembly 1, the heater 4 and the driving assembly 5 are both installed in the inner cavity of the shell assembly 1, the liquid outlet component 6 is installed in the shell assembly 1 and at least partially located on the outer side of the shell assembly 1 and used for discharging heated boiled water for users to use, and the telescopic assembly 7 is used for adjusting the height of the liquid outlet component 6 so as to adapt to different users. Meanwhile, the base 3 is installed at the bottom of the housing assembly 1, is provided with components such as a circuit board and the like, and is used for being connected with a power supply, thereby supplying power to each component of the water boiler.

As shown in fig. 3 and 4, the cover assembly 2 is provided with a water inlet 21, one end of the water inlet 21 is connected to an external water source (e.g., a mineral water barrel), the other end is connected to a first water inlet pipe 511 of a water pump 51 of the driving assembly 5, and a first water outlet pipe 512 of the water pump 51 is connected to a second water inlet pipe 427 (shown in fig. 15) of the heater 4, so that water from the external water source is introduced into the heater 4 by the pumping action of the water pump 51 and heated to water having a predetermined temperature. Meanwhile, as shown in fig. 4, the second water outlet pipe 428 of the heater 4 is further connected to the liquid outlet part 6, so that the boiled water heated by the heater 4 is discharged through the second outlet 62 through the liquid outlet part 6.

Specifically, as shown in fig. 5, the heater 4 may specifically include a housing 41, a heating element 42, a water storage element 43, and a contact assembly 44, wherein the housing 41 has an inner cavity, the heating element 42 and the supporting element 43 are both housed in the inner cavity of the housing 41, the housing 41 protects the supporting element 43 and the heating element 42, and the contact assembly 44 is connected to the bottom of the heating element 43 and is electrically connected to the heating element 43. Meanwhile, as shown in fig. 6, the supporting member 43 is sleeved outside the heating member 42, and the supporting member 43 and the heating member 42 can be connected by laser welding, and after the supporting member 43 and the heating member 42 are connected, a first cavity 421 is defined between the supporting member 43 and the heating member 42 in the radial direction, and the first cavity 421 is used for containing a liquid to be heated.

As shown in fig. 6, the first chamber 421 includes a flow passage 425 for liquid flowing, the flow passage 425 is communicated with the first inlet 422 and the first outlet 423, and the flow passage 425 has a spiral structure.

In this embodiment, the spiral flow channel 425 is disposed such that the liquid enters the first cavity 421 through the first inlet 422 and then flows spirally, so as to increase the flow path of the liquid in the first cavity 421 and increase the flow time, thereby promoting the heating member 43 to heat the liquid sufficiently and uniformly, and improving the heating efficiency. Meanwhile, the cross section area of the spiral flow channel 425 is small, the pressure of the liquid in the flow channel 425 is high, even if a part of the liquid boils to generate steam in the flowing process of the liquid, the steam can be extruded into a liquid state under the action of the high pressure of the spiral flow channel 425, so that the amount of the steam mixed in the liquid is reduced, the liquid is promoted to be stranded, and the situation that the liquid is discharged out of the water boiler and is discontinuous is prevented.

Specifically, as shown in fig. 6, the water storage part 42 has a protrusion 424 spirally arranged, and the protrusion 424 protrudes toward a third cavity 426 of the water storage part 42, so that the protrusion 424 and the heating part 43 enclose the flow channel 425, and the flow channel 425 forms the first cavity 421.

As shown in fig. 6, the heating member 43 is sleeved outside the supporting member 42, and the two are connected by laser welding, and after the connection, the two enclose the first cavity 421. In this embodiment, when the heating member 43 and the supporting member 42 are welded by laser, the connection reliability between the two members is high, so as to improve the pressure-bearing performance of the first cavity 421 surrounded by the two members.

Meanwhile, the heating member 42 further has a second cavity 426, and the second cavity 426 is used for accommodating at least a portion of the driving assembly 5, so that the internal space of the heater 4 is reasonably utilized, and the overall volume of the water boiler is reduced.

In a specific embodiment, as shown in fig. 8, the water pump 51 of the driving assembly 5 comprises a third inlet 513 and a third outlet 514, wherein the third inlet 513 is used for connecting with a water locking member 52, the water locking member 52 at least has a first state and a second state, in the first state, the water locking member 52 is used for conducting the connection between the third outlet 514 and the heater 4, and in the second state, the water locking member 52 is used for cutting off the connection between the third outlet 514 and the heater 4.

In this embodiment, by providing the water locking component 52, when the water locking component 52 is in the first state, the connection between the third outlet 514 and the heater 4 is conducted, and at this time, under the action of the suction force of the water pump 51, the liquid entering the water pump 51 can enter the heater 4 through the third outlet 514, so as to be heated in the heater 4; after the heater 4 is heated for a period of time, the boiling point of the liquid is reached, at this time, a large amount of steam is generated in the heater 4, so that the pressure in the heater 4 is increased, the pressure is opposite to the suction force of the water pump 51, and the risk that the steam and the liquid in the heater 4 flow backwards and enter the water pump 51 exists.

In the first embodiment, as shown in fig. 8, 9, 12 and 14, the water locking member 52 includes a blocking portion 521 provided in the third outlet 514, the third outlet 514 has an abutting surface 514a, and in the first state, as shown in fig. 14, the blocking portion 521 abuts against the abutting surface 514a to block the third outlet 514, thereby cutting off the connection between the water pump 51 and the heater 4, at this time, the liquid in the water pump 51 cannot enter the heater 4 through the third outlet 514, and the steam generated by the boiling of the liquid in the heater 4 cannot flow back into the water pump 51 through the third outlet 514, so that the water dispenser in this state can be prevented from overflowing.

In the second state, as shown in fig. 12, the blocking portion 521 and the contact surface 514a have a predetermined distance therebetween to open the third outlet 514, thereby conducting the connection between the water pump 51 and the heater 4. At this time, the temperature in the heater 4 does not reach the boiling temperature of the liquid, that is, a large amount of steam is not generated in the heater 4, so the pressure in the heater 4 is not too high, so that the liquid can enter the heater 4 through the third opening 514 by the suction action of the water pump 51, and at this time, since a large amount of steam does not exist in the heater 4, there is no risk that the steam flows back into the water pump 51 through the third opening 514.

In the embodiment, when the water boiler is operated, the water pump 51 pumps the liquid by the suction force, and the liquid pushes the blocking portion 521 open against the gravity of the blocking portion 521 to be away from the contact surface 514a of the third outlet 514 by the suction force, so that the third outlet 514 is opened, and the liquid can enter the heater 4 from the third outlet 514 at this time, as shown in fig. 12. When the liquid is heated to boiling in the heater 4, a large amount of steam is generated in the heater 4, so that the pressure in the heater 4 rises, the steam in the heater 4 enters the third outlet 514 through the second water inlet pipe 427, the high steam pressure acts on the blocking part 521, and the blocking part 521 is pushed to abut against the abutting surface 514a against the suction force of the water pump 51, so that the third outlet 514 is blocked, and the state shown in fig. 14 is achieved, at this time, the steam cannot enter the water pump 51 through the third outlet 514, and the liquid in the water pump 51 cannot enter the heater 4 through the third outlet 514, so that water locking is achieved.

Therefore, the connection or disconnection between the water pump 51 and the heater 4 is realized by the movement of the blocking part 521, the movement of the blocking part 521 is driven by the suction force of the water pump 51 and the pressure of the steam, no other driving part is needed, the structure is simple, and the blocking part 521 can be driven to move quickly along with the change of the steam pressure in the heater 4, so that the water locking part 52 has the advantage of high sensitivity, and the liquid can be effectively prevented from overflowing.

Specifically, as shown in fig. 12, at least a part of the blocking portion 521 is spherical, that is, the blocking portion 521 has a spherical surface, the abutting surface 514a is a spherical surface that fits with the blocking portion 521, and when the water locking member 52 is in the first state as shown in fig. 14, the spherical surface of the blocking portion 521 fits and fits with the spherical surface of the third outlet 514.

In this embodiment, when at least a part of the blocking portion 521 is spherical and the contact surface 514a is spherical, the reliability of the fit between the blocking portion 521 and the contact surface 514a is high in the first state, so that the blocking effect is improved, the steam is effectively prevented from entering the water pump 51 from between the blocking portion 521 and the contact surface 514a, and the reliability of water locking is improved.

Specifically, as shown in fig. 8, 9, 12 and 14, the water locking member 52 may further include a connecting portion 522, one end of the connecting portion 522 is connected to the blocking portion 521, and the other end is connected to the water pump 51.

In this embodiment, when the blocking portion 521 is connected to the water pump 51 by the connecting portion 522, the stability and reliability of the movement of the blocking portion 521 can be improved, and the blocking portion 521 can be prevented from being separated from the third outlet 514 by the suction force.

More specifically, as shown in fig. 9, the connecting portion 522 includes a fixed end 522a, and accordingly, as shown in fig. 10, the cover 515 of the water pump 51 is provided with a second through hole 515a, and as shown in fig. 12, the fixed end 522a is fixed in the second through hole 515a, thereby fixing the blocking portion 521 to the cover 515 of the water pump 51 through the fixed end 522a of the connecting portion 522. Meanwhile, as shown in fig. 8, the third inlet 513 and the third outlet 514 of the water pump 51 are both disposed on the cover 515, and the blocking portion 521 and the connecting portion 522 of the water locking member 52 are both located in the inner cavity of the third outlet 514.

On the other hand, as shown in fig. 12 and 14, the blocking portion 521 includes a fourth cavity 521b therein, a side wall of the fourth cavity 521b is provided with a first through hole 521a, and one end of the connecting portion 522 of the water locking member 52 extends into the fourth cavity 521b and is movable in the fourth cavity 521 b.

In this embodiment, after the connecting portion 522 is provided, the blocking portion 521 can be connected to the cover 515 of the water pump 51 through the connecting portion 522, and meanwhile, in order to ensure that the blocking portion 521 can move along the height direction H while being connected to the cover 515 so as to block or open the third outlet 514, it is necessary to enable the blocking portion 521 and the connecting portion 522 to move relatively along the height direction H. Therefore, in the present embodiment, the fourth chamber 521b in which the connecting portion 522 can move is provided in the blocking portion 521, so that the third outlet 514 can be blocked or opened, and the reliability of the movement of the blocking portion 521 can be improved.

Specifically, as shown in fig. 9, the connecting portion 522 has a position-limiting end 522b, the position-limiting end 522b is located at an end away from the fixing end 522a, and the fixing end 522a and the position-limiting end 522b are connected by a connecting section 522 c. As shown in fig. 12 and 14, the position-limiting end 522b is located in the fourth cavity 521b, the size of the position-limiting end 522b is larger than that of the first through hole 521a, and the position-limiting end 522b is used for limiting the separation of the blocking part 521 from the connecting part 522.

In this embodiment, as shown in fig. 12, when the water locking member 52 is in the second state as shown in fig. 12, the blocking portion 521 moves in a direction away from the contact surface 514a under the hydraulic pressure of the liquid in the water pump 51, and during the movement, the blocking portion 521 is restricted from being separated from the connecting portion 522 by the limit end 522 b.

When the cross section of the position-limiting end 522b is circular and the cross section of the first through hole 521a is also circular, the diameter of the position-limiting end 522b is larger than that of the first through hole 512 a.

In another embodiment, as shown in fig. 15 to 17, the water locking component 52 includes a one-way valve 523, and the one-way valve 523 is disposed between the third outlet 514 and the heater 4. Specifically, the third outlet 514 is connected to a first outlet pipe 512, the first inlet 422 of the heater 4 is connected to a second inlet pipe 427, and the first outlet pipe 512 is connected to the second inlet pipe 427, so that the liquid in the water pump 51 can enter the first cavity 421 of the heater 4 through the first outlet pipe 512 and the second inlet pipe 427 for heating.

The one-way valve 523 is connected between the first water outlet pipe 512 and the second water inlet pipe 427, and in the direction from the first water outlet pipe 512 to the second water inlet pipe 427, the one-way valve 523 is turned on, and in the direction from the second water inlet pipe 427 to the first water outlet pipe 512, the one-way valve 523 is turned off. Therefore, the one-way valve 523 is arranged to allow the liquid in the water pump 51 to enter the first cavity 421 of the heater 4 through the communicated one-way valve 523, but the liquid and the steam in the first cavity 421 cannot enter the water pump 51, so that the risk of overflow caused by backflow of the liquid and the steam in the heater 4 is prevented.

Specifically, as shown in fig. 18 and 20, the check valve 523 includes a valve core 523a, a valve seat 523b and an elastic member 523c, wherein two ends of the valve seat 523d are respectively connected to the first water outlet pipe 512 and the second water inlet pipe 427, and the valve seat 523b has a valve cavity 523d, and the valve cavity 523d has a valve port 523 e. Therefore, the valve chamber 523 communicates with the inner chamber of the first water outlet pipe 512 and the inner chamber of the second water inlet pipe 427. Meanwhile, the valve core 523a is located in the valve cavity 523d and can move in the valve cavity 523d, and two ends of the elastic member 523c are respectively connected with the valve core 523a and the valve seat 523b, so that the elastic member 523c can be compressed in the moving process of the valve core 523 a.

As shown in fig. 18, in the first state, under the action of the liquid in the water pump 51, the valve core 523a is pushed to move away from the valve port 523e, so as to open the valve port 523e, so that the liquid in the water pump 51 can enter the heater 4, and meanwhile, the valve core 523a can compress the elastic member 523c during the movement process. As shown in fig. 20, when a large amount of steam is generated by boiling the liquid in the heater 4, the pressure in the heater 4 increases, the steam is discharged through the second water inlet pipe 427 and acts on the valve plug 523a, and the valve plug 523a is pushed to move toward the valve port 523e by the pressure action and the resilience of the elastic member 523c, so as to block the valve port 523e, thereby preventing the steam and the liquid in the heater 4 from flowing backward into the water pump 51.

The one-way valve 523 is detachably connected to the first water outlet pipe 512 and the second water inlet pipe 427, so that when the one-way valve 523 fails, the one-way valve 523 can be replaced or maintained, and the water boiler is prevented from being integrally maintained or replaced. Meanwhile, the check valve 523 of this structure has an advantage of simple structure.

Of course, the structure of the check valve 523 is not limited thereto, and may be other check valve structures commonly used in the art.

The above description is only a preferred embodiment of the present application and is not intended to limit the present application, and various modifications and changes may be made by those skilled in the art. Any modification, equivalent replacement, improvement and the like made within the spirit and principle of the present application shall be included in the protection scope of the present application.

Claims (10)

1. A drive assembly of a water boiler, characterized in that the drive assembly (5) comprises:

a water pump (51), the water pump (51) having a third inlet (513) and a third outlet (514), the third outlet (514) for connecting with a heater (4) of the water boiler;

a water-locking component (52), the water-locking component (52) at least having a first state and a second state;

in the first state, the water locking member (52) is used for conducting the connection between the third outlet (514) and the heater (4), and in the second state, the water locking member (52) can cut off the connection between the third outlet (514) and the heater (4) under the action of the pressure in the heater (4).

2. The drive assembly according to claim 1, wherein the water-locking member (52) comprises a blocking portion (521) arranged inside the third outlet (514), the third outlet (514) having an abutment surface (514a) therein;

in the first state, the blocking portion (521) abuts against the abutment surface (514a) to block the third outlet (514);

in the second state, a preset distance is reserved between the blocking part (521) and the abutting surface (514a) to open the third outlet (514).

3. The drive assembly according to claim 2, wherein the water locking member (52) further comprises a connecting portion (522), one end of the connecting portion (522) is connected with the blocking portion (521), and the other end is connected with the water pump (51).

4. The drive assembly according to claim 3, characterized in that the blocking portion (521) has a fourth cavity (521b) therein, and a side wall of the fourth cavity (521b) is provided with a first through hole (521a), and one end of the connecting portion (522) extends into the fourth cavity (521b) and can move in the fourth cavity (521b) so that the blocking portion (521) can move relative to the connecting portion (522).

5. The drive assembly according to claim 4, wherein the connecting portion (522) has a limit end (522b), the limit end (522b) being located within the fourth cavity (521 b);

the size of the limiting end (522b) is larger than that of the first through hole (521a) so as to limit the separation of the plugging part (521) and the connecting part (522).

6. The drive assembly according to claim 3, characterized in that the water pump (51) comprises a cover (515), the cover (515) being provided with a second through hole (515 a);

the connection part (522) further includes a fixed end (522a), the fixed end (522a) being fixed to the second through hole (515 a).

7. The drive assembly according to any one of claims 2 to 6, wherein at least a portion of the blocking portion (521) is spherical;

the contact surface (514a) is a spherical surface that engages with the blocking portion (521).

8. The drive assembly according to claim 1, wherein the water-locking member (52) comprises a one-way valve (523), the one-way valve (523) being arranged between the third outlet (514) and the heater (4);

liquid in the water pump (51) can enter the heater (4) through the one-way valve (523).

9. The drive assembly according to claim 8, wherein the one-way valve (523) comprises a valve spool (523a) and a valve seat (523b), the valve seat (523b) having a valve cavity (523d), the valve cavity (523d) having a valve port (523e), the valve port (523e) communicating with the third outlet (514);

the valve core (523a) is positioned in the valve cavity (523d) and can move in the valve cavity (523 d);

in the first state, the valve spool (523a) opens the valve port (523e), and in the second state, the valve spool (523a) blocks the valve port (523 e).

10. A water boiler, characterized in that it comprises:

a housing assembly (1);

a drive assembly (5) mounted within the housing assembly (1);

a heater (4), said heater (4) mounted within said housing assembly (1);

wherein the drive assembly (5) is a drive assembly (5) according to any one of claims 1 to 9.

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