CN217447389U - Water feeding connecting mechanism of electric kettle - Google Patents

Abstract

The utility model provides an electric kettle's water feeding coupling mechanism, includes the coupler, sets up water injection pipe and water pump in last coupler, the water injection pipe is including inlet pipe portion and outlet pipe portion, inlet pipe portion has the inlet opening that is located the lower tip of coupler, outlet pipe portion has the outlet opening that is located the coupler upper end, inlet pipe portion and outlet pipe portion pass through the water pump intercommunication, be equipped with the second check valve in the inlet pipe portion, outlet pipe portion is equipped with first check valve, through setting up first check valve, accomplishes the back one-way closure with the water injection pipe at the water injection, and the water after boiling can not flow back to in the water injection pipe, reduces the damage that high temperature boiling water probably caused water injection pipe and the water pump of intercommunication to it, improves water feeding coupling mechanism's life.

Description

Water feeding connecting mechanism of electric kettle

Technical Field

The utility model relates to a water feeding connecting mechanism of an electric kettle, which belongs to the field of electric kettles.

Background

The electric heating kettle is an electric appliance which is most frequently used in household appliances, has the characteristics of convenience, high heating speed and the like, and the existing electric heating kettle is divided into a manual water feeding connection type and an automatic water feeding connection type, wherein in the electric heating kettle with the automatic water feeding connection, a water feeding port is generally arranged at the bottom of a kettle body, the water feeding port is controlled to be switched on and switched off by a valve, when water is supplied, the valve is opened, a water pump operates and inputs a certain amount of water into the kettle body through the water feeding port, after the water supply is completed, the water pump stops working, and the valve is closed. Because the valve is directly communicated with the water filling port and bears the pressure of cold water and hot water for a long time, a valve plate used for controlling on-off in the valve is easy to deform or the sealing performance is reduced in the using process, and water in the kettle body is easy to permeate to the outside of the bottom of the kettle body in a reverse osmosis mode. The bottom of the electric kettle is generally directly and electrically connected with a coupler responsible for power supply, and water drops formed by reverse osmosis are easy to cause short circuit of a circuit and even fire if being dropped into the coupler in the using process. Chinese utility model patent CN214964555U discloses a mechanism and electric kettle of adding water, the mechanism of adding water includes: the kettle body, second check valve, water injection pipe and water pump, the heating chamber has been seted up to the kettle body, and the second check valve sets up in kettle body bottom, and at the bottom of the heating chamber is worn to establish on water injection pipe top, and water injection bottom of the tubes end passes through water pump and second check valve intercommunication. The water injection pipe and the inside heating chamber intercommunication of above-mentioned structure, the boiling water after the heating makes the water injection pipe produce deformation easily under high temperature state and leads to the fixed position unstability, and leads to the fact the damage to the water pump easily after communicating with the water pump, influences life.

SUMMERY OF THE UTILITY MODEL

The utility model aims to overcome the defects of the prior art and provide a water feeding connecting mechanism of an electric kettle.

The utility model provides an electric kettle's water feeding coupling mechanism, includes the coupler, sets up water injection pipe and water pump in last coupler, the water injection pipe is including inlet pipe portion and outlet pipe portion, inlet pipe portion has the water inlet that is located the lower tip of coupler, outlet pipe portion has the delivery port that is located the coupler upper end, inlet pipe portion and outlet pipe portion pass through the water pump intercommunication, be equipped with the second check valve in the inlet pipe portion, outlet pipe portion is equipped with first check valve, through setting up first check valve, with the water injection pipe one-way closure after the water injection is accomplished, water after boiling can not flow back to in the water injection pipe, reduces the damage that high temperature boiling water probably caused water injection pipe and the water pump of intercommunication to it, improves water feeding coupling mechanism's life.

Furthermore, the first one-way valve comprises an umbrella-shaped sealing element, a first limiting part and a second limiting part are fixedly connected to the water outlet pipe in sequence along the flow direction of the fluid, an umbrella-shaped sealing element movable cavity is formed by the first limiting part and the second limiting part at a certain interval, the umbrella-shaped sealing element is positioned in the umbrella-shaped sealing element movable cavity between the first limiting part and the second limiting part and is arranged in a limiting and sliding mode along the axial direction of the water outlet pipe, the umbrella-shaped sealing element comprises an umbrella-shaped main body part, the umbrella-shaped main body part and the first limiting part are matched to form a one-way sealing structure, and the limiting structure for the umbrella-shaped sealing element comprises an axial direction limiting structure along the axial direction of the water outlet pipe and a horizontal direction limiting structure perpendicular to the axial direction of the water outlet pipe; the axial direction limiting structure is composed of a first limiting component which has a limiting effect on the lower end face of the umbrella-shaped main body part and a second limiting component which has a limiting effect on the upper end part of the umbrella-shaped sealing element, the sliding stroke of the umbrella-shaped sealing element is limited through the movable cavity of the umbrella-shaped sealing element, the umbrella-shaped sealing element moves upwards during water injection, and moves downwards after the water injection is completed to form sealing.

Furthermore, the horizontal limiting structure is composed of an umbrella handle part which is connected with the umbrella-shaped main body part into a whole and is positioned at the lower end of the umbrella-shaped main body part, and a limiting hole groove which is arranged on the first limiting part and is matched with the shape of the umbrella handle part; the umbrella handle part is positioned at the center of the umbrella-shaped main body part, and the thickness of a central annular part of the umbrella-shaped main body part, which is positioned at the periphery of the umbrella handle part and is connected with the umbrella handle part, is smaller than that of an outer annular part of the umbrella-shaped main body part, which is positioned at the periphery of the central annular part and is connected with the central annular part.

Furthermore, the upper end surface of the umbrella-shaped main body part is a conical surface, and the lower end surface of the umbrella-shaped main body part is composed of an arc-shaped annular concave surface connected with the periphery of the umbrella handle part and a conical surface connected with the periphery of the arc-shaped annular concave surface; the upper end face of the umbrella-shaped main body part is integrally provided with a boss, the second limiting part has a limiting effect on the upper end part of the boss, the first limiting part and the water injection pipe are integrally formed, and the second limiting part is detachably connected with the water injection pipe; the first limiting part is a water leakage plate which is connected with the water injection pipe into a whole and is positioned at one end of the outlet of the water injection pipe, and at least one water leakage hole is formed in the water leakage plate; still include with water injection pipe fixed connection be located the outer play water cap cover of water injection pipe export one end, go out the water cap cover including the connecting portion that are located the water injection pipe periphery and being located water injection pipe export one end is separated by the end plate of certain distance with the water injection pipe outward, the spacing part of second is the end plate of play water cap cover, be equipped with at least one delivery port on the play water cap cover, the atress shifts up first check valve when the water injection of upper and lower terminal surface of umbelliform main part, when not the water injection, forms sealedly with the water injection pipe butt.

Preferably, be equipped with a spacer in the water injection pipe and make the water injection pipe separate for being located the inlet pipe portion of coupler upper end and being located the play water pipe portion of coupler lower extreme, the water pump includes inlet channel and outlet conduit, inlet pipe portion lateral wall and inlet channel intercommunication, outlet pipe portion is close to spacer one end lateral wall and outlet conduit intercommunication, uses the spacer to carry out the partition back of inlet pipe portion and outlet pipe portion, through inlet channel and outlet conduit intercommunication water injection water route, and goes out the integration of intaking for installation convenient and fast more does not need the components of a whole that can function independently installation.

Preferably, the water inlet pipeline and the water outlet pipeline are positioned on the same side; the water inlet pipeline, the water outlet pipeline and the water injection pipe are integrally arranged, so that the time and the process for machining the water injection pipe in steps are reduced, the machining efficiency is improved, and the water injection pipe is more convenient and quicker to install.

Preferably, the second check valve includes a sealing sleeve located in the water inlet pipe part, the upper coupler is inserted with a lower coupler, the lower coupler includes a water supply pipe, the insertion end of the water supply pipe is inserted into the lower inner wall of the sealing sleeve to form an insertion type movable sealing fit, a one-way sealing elastic diaphragm for cutting off the water inlet flow passage is arranged in the lower inner wall of the sealing sleeve, a cutting slit is arranged on the one-way sealing elastic diaphragm, the head end of the water supply pipe in the insertion state is opened by the cutting slit and conducted, the one-way sealing elastic diaphragm on the side of the cutting slit is elastically folded and sealed at the cutting slit in the extraction state of the water supply pipe, the water can be fed into the water inlet pipe by the insertion action of the water supply pipe, and after the water is fed, the one-way sealing elastic diaphragm can be rapidly recovered to the initial state due to the self elastic force of the diaphragm and the extrusion force of the water supply pipe, sealing is formed, and water leakage and the like are avoided.

Furthermore, the joint cutting has two, and the two joint cutting becomes the cross or the setting of X shape crossing mode on one-way sealed elastic diaphragm, can the joint cutting evenly atress be broken open when making things convenient for the inlet tube to insert, when also being convenient for the inlet tube to extract, can resume fast.

Further, the second check valve is including being located the interior elastic sealing element of inlet pipe portion, it has lower coupler to go up the coupler grafting, lower coupler includes the inlet pipe, sets up in elastic sealing element with the sealed complex ball sealer of elastic sealing element and the spring of setting between ball sealer and spacer, the spring forms the thrust to the elastic sealing element direction to the ball sealer, seals after finishing intaking to elastic sealing element through ball sealer and spring.

Preferably, the water feeding pipe is sleeved in the water injection pipe, the elastic sealing element comprises a sealing part positioned between the water feeding pipe and the water injection pipe, the sealing part comprises a sealing outer sleeve in sealing fit with the inner wall of the water feeding pipe and a sealing inner sleeve in sealing fit with the outer wall of the water inlet pipe, the lower ends of the sealing outer sleeve and the sealing inner sleeve are connected into a whole, and a fluid gap is formed between the sealing outer sleeve and the sealing inner sleeve; the upper end of the sealing outer sleeve extends upwards to form a sealing pipe part which is in sealing fit with the sealing ball, and a fluid gap is formed between the outer wall of the sealing pipe part and the water injection pipe; the lower end of the sealing outer sleeve is provided with a limiting convex ring, and the limiting convex ring is abutted with the lower end part of the water injection pipe to limit the elastic sealing element.

Further, sealed tube portion is including being equipped with the fluid effect portion that is located the ball sealer below, fluid effect portion inner wall and outer wall are the conical surface that inclines in the axle center direction, are equipped with the space that supplies the sealed tube portion activity that makes progress under the fluid effect between the outer wall of fluid effect portion and the water injection pipe, and the fluid acts on the inner wall of fluid effect conical surface can form ascending effort to sealed tube portion, makes the sealed effect of ball sealer and sealed tube portion better.

The utility model has the advantages as follows: through setting up first check valve, with the water injection pipe one-way closure after the water injection is accomplished, the water after boiling can not flow back to in the water injection pipe, reduces the damage that high temperature boiling water probably led to the fact it to the water pump of water injection pipe and intercommunication, improves water connection mechanism's life.

Drawings

In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings needed to be used in the description of the embodiments or the prior art will be briefly introduced below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings obtained from these drawings still belong to the scope of the present invention without inventive laboriousness.

FIG. 1 is a view of the main structure of the present invention;

fig. 2 is a side view of the present invention;

fig. 3 is a cross-sectional view of a first embodiment of the present invention;

FIG. 4 is an enlarged detail view of the first check valve of FIG. 3;

FIG. 5 is a body structure view of the umbrella seal;

FIG. 6 is a cross-sectional view of the umbrella seal;

FIG. 7 is an enlarged detail view of the second check valve of FIG. 3;

fig. 8 is a cross-sectional view of the second embodiment of the present invention with the lower coupler removed;

FIG. 9 is an enlarged detail view of the second one-way valve of FIG. 8;

in the figure, 1-upper coupler; 2-a lower coupler; 21-temperature controller; 3-a second one-way valve; 31-water supply pipe; 32-sealing sleeve; 321-one-way sealing elastic diaphragm; 322-cutting and cutting; 33-an elastic sealing member; 331-a sealing portion; 332-sealing the outer sleeve; 333-sealing inner sleeve; 334-sealing the tube; 3341-fluid application portion; 335-limit convex ring; 34-a sealing ball; 35-a spring; 4-a water injection pipe; 101-a first stop member; 102-a limiting hole groove; 41-a spacer; 42-a first one-way valve; 424-umbrella seal; 201-an umbrella-shaped body portion; 202-umbrella handle; 203-a central ring-shaped portion; 204-a peripheral annular portion; 205-a boss; 43-water outlet cap; 301-a connecting portion; 302-a second stop feature; 303-water outlet; 44-a water inlet pipe portion; 441-water inlet opening; 45-a water outlet pipe part; 451-water outlet opening; 5, a water pump; 51-a water inlet pipeline; 52-outlet conduit.

Detailed Description

In order to make the objects, technical solutions and advantages of the present invention clearer, the present invention will be described in further detail with reference to the accompanying drawings.

It should be noted that all expressions using "first" and "second" in the embodiments of the present invention are used for distinguishing two entities with the same name but different names or different parameters, and it is understood that "first" and "second" are only used for convenience of expression and should not be understood as limitations to the embodiments of the present invention, and the following embodiments do not describe any more.

The terms of direction and position in the present invention, such as "up", "down", "front", "back", "left", "right", "inside", "outside", "top", "bottom", "side", etc., refer to the direction and position of the attached drawings. Accordingly, the directional and positional terms used are intended to illustrate and understand the present invention and are not intended to limit the scope of the invention.

As shown in fig. 1-7, for the first embodiment of the water feeding connection mechanism of the electric kettle of the present invention, including the upper coupler 1, the water injection pipe 4 and the water pump 5 arranged in the upper coupler 1, the water inlet pipe part 44 has the water inlet 441 located at the lower end of the upper coupler 1, the water outlet pipe part 45 has the water outlet 451 located at the upper end of the upper coupler 1, the water inlet pipe part 44 and the water outlet pipe part 45 are communicated through the water pump, the second check valve 3 is arranged in the water inlet pipe part 44, the water outlet pipe part 45 is provided with the first check valve 42, by providing the first check valve 42, the water injection pipe 4 is unidirectionally sealed after the water injection is completed, the boiled water can not flow back into the water injection pipe 4, the damage to the water injection pipe 4 and the communicated water pump 5 can be reduced by the high temperature boiling water, and the service life of the water feeding connection mechanism is prolonged.

The first one-way valve 42 comprises an umbrella-shaped sealing element 424, a first limiting part 101 and a second limiting part 302 are sequentially and fixedly connected to the water injection pipe 4 along the fluid flowing direction, an umbrella-shaped sealing element moving cavity is formed by the first limiting part 101 and the second limiting part 302 at a certain interval, the umbrella-shaped sealing element 424 is positioned in the umbrella-shaped sealing element moving cavity between the first limiting part 101 and the second limiting part 302 and is arranged in a limiting and sliding mode along the axial direction of the water injection pipe 4, the umbrella-shaped sealing element 424 comprises an umbrella-shaped main body part 201, the umbrella-shaped main body part 201 and the first limiting part 101 are matched to form a one-way sealing structure, and the limiting structure for the umbrella-shaped sealing element 2 comprises an axial direction limiting structure along the axial direction of the water injection pipe 4 and a horizontal direction limiting structure perpendicular to the axial direction of the water injection pipe 4; the axial direction limiting structure is composed of a first limiting component 101 for limiting the lower end face of the umbrella-shaped main body part 201 and a second limiting component 302 for limiting the upper end part of the umbrella-shaped sealing element 2. When the umbrella-shaped sealing element is assembled, the umbrella-shaped sealing element is placed on the first limiting part, then the second limiting part is installed, and the umbrella-shaped sealing element does not need to be pushed and pulled vigorously.

The horizontal direction limiting structure is composed of an umbrella handle part 202 which is connected with the umbrella-shaped main body part 201 into a whole and is positioned at the lower end of the umbrella-shaped main body part 201, and a limiting hole groove 102 which is arranged on the first limiting part 101 and is matched with the shape of the umbrella handle part 202. The limiting hole groove 102 shown in the figure is a through hole which has a slightly larger aperture than the umbrella handle 202 and can enable the umbrella handle 202 to easily extend into the limiting hole groove 102, and during installation, the umbrella handle 202 can be directly extended into the limiting hole groove 102 without push-pull acting force. The diameter of the limit hole groove 102 is sufficient to limit the umbrella shaft 202 so that the umbrella-shaped sealing member 2 does not swing in the horizontal direction, which significantly affects the sealing action. The limiting hole groove 102 may also be a limiting groove structure with a closed lower end extending downwards. The stem portion 202 may be provided at the upper end of the umbrella body 201, and the second stopper member 302 may be provided with the stopper hole groove 102 that is engaged with the stem portion 202 in a stopper manner, or both of them may be combined, and the stem portion 202 and the stopper hole groove 102 may be provided at both the upper and lower ends of the umbrella body 201.

The stem portion 202 is located at the center of the umbrella body portion 201, and the central annular portion 203 of the outer periphery of the stem portion 202 of the umbrella body portion 201 connected to the stem portion 202 has a smaller thickness than the outer peripheral annular portion 204 of the outer periphery of the central annular portion 203 of the umbrella body portion 201 connected to the central annular portion 203. This arrangement reduces the resistance to fluid flow when the umbrella seal 2 is opened.

The upper end surface of the umbrella-shaped main body part 201 is a conical surface, and the lower end surface of the umbrella-shaped main body part is composed of an arc-shaped annular concave surface connected with the periphery of the umbrella handle part 202 and a conical surface connected with the periphery of the arc-shaped annular concave surface.

The upper end surface of the umbrella-shaped main body part 201 is integrally provided with a boss 205, and the second limiting component 302 limits the upper end part of the boss 205.

The first stopper 101 is integrally formed with the water injection pipe 4, and the second stopper 302 is detachably connected with the water injection pipe 4. Thus, the installation is convenient for disassembly and assembly.

The first limiting part 101 is a water leakage plate which is connected with the water injection pipe 4 into a whole and is positioned at one end of the outlet of the water injection pipe 4, and at least one water leakage hole is arranged on the water leakage plate; still include the play water cap cover 43 that is located the outer one end of 4 exports of water injection pipe with 4 fixed connection of water injection pipe, go out water cap cover 43 including the connecting portion 301 that is located 4 peripheries of water injection pipe and the end plate that is located 4 exports of water injection pipe one end outer and 4 water injection pipes are separated by certain distance, and second stop part 302 is the end plate of play water cap cover 43, is equipped with at least one delivery port 303 on the play water cap cover 43. The umbrella-shaped sealing member 424 of the present embodiment is provided at the outlet end of the water injection pipe 4, and therefore the umbrella-shaped sealing member 424 can be restrained by the structure of the water outlet cap 43.

Also can set up umbrella-type sealing member 424 in water injection pipe 4, then the position of first spacing part 101 need be corresponding to set up in water injection pipe 4, and second spacing part 302 can additionally set up the detachable board that leaks in water injection pipe 4, need notice the distribution in the hole that leaks of second spacing part 302, avoids umbrella-shaped main part 201 to upwards turn over and plug up the hole that leaks of second spacing part 302.

And the structure of the second stopper member 302 and the connection structure with the water filling pipe 4 are replaced accordingly.

Referring to fig. 1-7, a spacer 41 is provided in the water injection pipe 4 to separate the water injection pipe 4 into a water inlet pipe portion 44 at the upper end of the upper coupler 1 and a water outlet pipe portion 45 at the lower end of the upper coupler 1, the water pump 5 includes a water inlet pipe 51 and a water outlet pipe 52, the side wall of the water inlet pipe portion 44 is communicated with the water inlet pipe 51, the side wall of the water outlet pipe portion 45 near the spacer 41 is communicated with the water outlet pipe 52, after the water inlet pipe portion 44 and the water outlet pipe portion 45 are separated by the spacer 41, the water inlet pipe 51 and the water outlet pipe 52 are located at the same side, the water inlet pipe 51 and the water outlet pipe 52 are integrally provided with the water injection pipe, so that the installation is more convenient and faster, the water injection pipe 4 is separated into a water inlet pipe portion 411 and a water outlet pipe portion 412 by the spacer 41, the water inlet pipe 51 and the water outlet pipe 52 are respectively connected, the installation steps of the split connection are reduced, and the assembly efficiency and speed are improved, and meanwhile, the processing procedures and working hours of the water injection pipe 4 are reduced, and the production cost of the product is reduced.

Referring to fig. 1-7, the second check valve 3 includes a sealing sleeve 32 in the water inlet pipe portion 44, the lower coupler 2 includes a water supply pipe 31, an insertion end of the water supply pipe 31 is inserted into a lower inner wall of the sealing sleeve 32 to form an insertion-type movable sealing fit, a check sealing elastic diaphragm 321 for blocking a water inlet flow passage is disposed in the lower inner wall of the sealing sleeve 32, a slit 322 is disposed on the check sealing elastic diaphragm 321, a head end of the water supply pipe 31 is opened by the slit 322 in an insertion state to conduct, the check sealing elastic diaphragm 321 on the side of the slit 322 is elastically closed and sealed at the slit 322 in a pull-out state of the water supply pipe 31, water can be supplied to the water inlet pipe 4 by the insertion of the water supply pipe 31 through the check sealing elastic diaphragm 321, after water is supplied, the check sealing elastic diaphragm 321 can be rapidly restored to an initial state due to its own elastic force and the extrusion force of the water supply pipe 31, sealing is formed, and water leakage and the like are avoided. The kerf 322 has two, and the two kerfs 322 are arranged on the one-way sealing elastic diaphragm 321 in a cross or X-shaped crossing mode, so that the kerfs 322 can be uniformly stressed to be opened when the water inlet pipe is inserted, and can be quickly recovered when the water inlet pipe is pulled out, and the number of the kerfs 322 can be increased or reduced according to the actual selected material and the specific situation of the diameter of the sealing sleeve 32.

As shown in fig. 1-4 and 8-9, for the second embodiment of the water supply connection mechanism of the electric kettle of the present invention, the second embodiment comprises an upper coupler 1, a water injection pipe 4 and a water pump 5, which are arranged in the upper coupler 1, a water inlet pipe 44 having a water inlet 441 located at the lower end of the upper coupler 1, a water outlet pipe 45 having a water outlet 451 located at the upper end of the upper coupler 1, the water inlet pipe 44 and the water outlet pipe 45 being communicated through the water pump, a second check valve 3 being arranged in the water inlet pipe 44, the water outlet pipe 45 being provided with a first check valve 42, the water injection pipe 4 being unidirectionally closed after the water injection is completed by arranging the first check valve 42, the boiled water not flowing back to the water injection pipe 4, the damage to the water injection pipe 4 and the communicated water pump 5 caused by the high temperature boiling water can be reduced, and the service life of the water supply connection mechanism can be prolonged.

This embodiment differs from the previous embodiment in that, referring to fig. 1-3 and 8-9, the second check valve 3 comprises an elastic sealing member 33 located in the water inlet pipe portion 44, the lower coupler 3 comprises a water supply pipe 31, a sealing ball 34 disposed in the elastic sealing member 33 and in sealing engagement with the elastic sealing member 33, and a spring 35 disposed between the sealing ball 34 and the spacer 41, the spring 35 forms a pushing force against the sealing ball 34 in the direction of the elastic sealing member 33, the elastic sealing element 33 is sealed after water is fed into the elastic sealing element 33 through the sealing ball 34 and the spring 35, the water feeding pipe 31 is sleeved in the water injection pipe 4, the elastic sealing element 33 comprises a sealing part 331 positioned between the water feeding pipe 31 and the water injection pipe 4, the sealing part 331 comprises a sealing outer sleeve 332 in sealing fit with the inner wall of the water feeding pipe 31 and a sealing inner sleeve 333 in sealing fit with the outer wall of the water inlet pipe, the lower ends of the sealing outer sleeve 332 and the sealing inner sleeve 333 are connected into a whole, and a fluid gap is formed between the sealing outer sleeve 332 and the sealing inner sleeve 333; the upper end of the sealing jacket 332 extends upwards to form a sealing pipe part 334 which is in sealing fit with the sealing ball 34, and a fluid gap is formed between the outer wall of the sealing pipe part 334 and the water injection pipe 4; the lower end of the sealing outer sleeve 332 is provided with a limiting convex ring, and the limiting convex ring is abutted against the lower end part of the water injection pipe 4 to limit the elastic sealing element 33. The sealing pipe part 334 comprises a fluid acting part 3341 positioned below the sealing ball 34, the inner wall and the outer wall of the fluid acting part 3341 are both conical surfaces inclined to the axis direction, a space for the sealing pipe part 334 to move upwards under the action of fluid is arranged between the outer wall of the fluid acting part 3341 and the water injection pipe 4, and the inner wall of the fluid acting on the fluid acting conical surface can form an upward acting force on the sealing pipe part 334, so that the sealing effect of the sealing ball 34 and the sealing pipe part 334 is better.

The above disclosure is only for the purpose of illustrating the preferred embodiments of the present invention and is not to be construed as limiting the scope of the invention, which is defined by the appended claims.

While the invention has been described with reference to several particular embodiments, it is to be understood that the invention is not limited to the specific embodiments disclosed. The invention is intended to cover various modifications and equivalent arrangements included within the spirit and scope of the appended claims.

Claims (10)

1. The utility model provides an electric kettle's water feeding coupling mechanism, includes the coupler, sets up water injection pipe and water pump in last coupler, the water injection pipe includes inlet pipe portion and outlet pipe portion, inlet pipe portion has the inlet opening that is located the lower tip of last coupler, outlet pipe portion has the outlet opening that is located the upper coupler upper end portion, inlet pipe portion and outlet pipe portion pass through the water pump intercommunication, be equipped with second check valve, its characterized in that in the inlet pipe portion: the water outlet pipe part is provided with a first one-way valve.

2. The water feeding connecting mechanism of the electric kettle as set forth in claim 1, characterized in that: the first one-way valve comprises an umbrella-shaped sealing element, a first limiting part and a second limiting part are fixedly connected to the water injection pipe in sequence along the flow direction of fluid, an umbrella-shaped sealing element movable cavity is formed by the first limiting part and the second limiting part at a certain interval, the umbrella-shaped sealing element is positioned in the umbrella-shaped sealing element movable cavity between the first limiting part and the second limiting part and is arranged in a limiting and sliding mode along the axial direction of the water injection pipe, the umbrella-shaped sealing element comprises an umbrella-shaped main body part, the umbrella-shaped main body part and the first limiting part are matched to form a one-way sealing structure, and the limiting structure of the umbrella-shaped sealing element comprises an axial direction limiting structure along the axial direction of the water injection pipe and a horizontal direction limiting structure perpendicular to the axial direction of the water injection pipe; the axial direction limiting structure is composed of a first limiting component which has a limiting effect on the lower end face of the umbrella-shaped main body part and a second limiting component which has a limiting effect on the upper end part of the umbrella-shaped sealing element.

3. The water feeding connecting mechanism of the electric kettle as set forth in claim 2, wherein: the horizontal direction limiting structure consists of an umbrella handle part which is connected with the umbrella-shaped main body part into a whole and is positioned at the lower end of the umbrella-shaped main body part, and a limiting hole groove which is arranged on the first limiting part and is matched with the shape of the umbrella handle part; the umbrella handle part is positioned at the center of the umbrella-shaped main body part, and the thickness of a central annular part, which is positioned at the periphery of the umbrella handle part and is connected with the umbrella handle part, of the umbrella-shaped main body part is smaller than that of a peripheral annular part, which is positioned at the periphery of the central annular part, of the umbrella-shaped main body part and is connected with the central annular part.

4. The water feeding connecting mechanism of the electric kettle as set forth in claim 3, characterized in that: the upper end surface of the umbrella-shaped main body part is a conical surface, and the lower end surface of the umbrella-shaped main body part is an arc-shaped annular concave surface connected with the periphery of the umbrella handle part and a conical surface connected with the periphery of the arc-shaped annular concave surface; the upper end face of the umbrella-shaped main body part is integrally provided with a boss, the second limiting part has a limiting effect on the upper end part of the boss, the first limiting part and the water injection pipe are integrally formed, and the second limiting part is detachably connected with the water injection pipe; the first limiting part is a water leakage plate which is connected with the water injection pipe into a whole and is positioned at one end of the outlet of the water injection pipe, and at least one water leakage hole is formed in the water leakage plate; still include with water injection pipe fixed connection be located the outer play water cap cover of water injection pipe export one end, go out the water cap cover including the connecting portion that are located the water injection pipe periphery and being located the outer end plate that is a certain distance apart from the water injection pipe of water injection pipe export one end, the second stop part is the end plate of play water cap cover, be equipped with at least one delivery port on the play water cap cover.

5. The water feeding connecting mechanism of the electric kettle as set forth in claim 1, characterized in that: the water pump comprises a water inlet pipe and a water outlet pipe, wherein a spacer is arranged in the water injection pipe to separate the water injection pipe into a water inlet pipe part positioned at the upper end of the upper coupler and a water outlet pipe part positioned at the lower end of the upper coupler, the water pump comprises a water inlet pipe and a water outlet pipe, the side wall of the water inlet pipe part is communicated with the water inlet pipe, and the water outlet pipe part is close to the side wall of one end of the spacer and communicated with the water outlet pipe.

6. The water feeding connecting mechanism of the electric kettle as claimed in claim 5, characterized in that: the water inlet pipeline and the water outlet pipeline are positioned on the same side; the water inlet pipeline, the water outlet pipeline and the water injection pipe are integrally arranged.

7. The water feeding connecting mechanism of the electric kettle as set forth in claim 1, wherein: the second check valve is including being located the seal cover of inlet pipe portion, it has lower coupler to go up the coupler grafting, lower coupler includes the water pipe, the lower extreme inner wall that inserts the seal cover that inserts of water pipe constitutes bayonet flexible seal cooperation, be provided with the one-way seal elastic diaphragm who cuts off the inlet flow way in the seal cover lower extreme inner wall, be provided with the kerf on the one-way seal elastic diaphragm, the water pipe under the inserted state its head end break the kerf and switch on, under the water pipe extraction state, the one-way seal elastic diaphragm of kerf department elasticity of avris closes sealedly at the kerf elasticity.

8. The water feeding connecting mechanism of the electric kettle as set forth in claim 7, wherein: the two incisions are arranged on the one-way sealing elastic diaphragm in a cross or X-shaped crossing mode.

9. The water feeding connecting mechanism of the electric kettle as set forth in claim 1, characterized in that: the second check valve is including being located the interior elastic sealing element of inlet pipe portion, it has lower coupler to go up the coupler grafting, lower coupler includes the inlet pipe, sets up in elastic sealing element with the sealed complex ball sealer of elastic sealing element and the spring of setting between ball sealer and spacer, the spring forms the thrust to the elastic sealing element direction to the ball sealer.

10. The water feeding connecting mechanism of the electric kettle as set forth in claim 9, characterized in that: the water feeding pipe is sleeved in the water injection pipe, the elastic sealing element comprises a sealing part positioned between the water feeding pipe and the water injection pipe, the sealing part comprises a sealing outer sleeve in sealing fit with the inner wall of the water feeding pipe and a sealing inner sleeve in sealing fit with the outer wall of the water inlet pipe, the lower ends of the sealing outer sleeve and the sealing inner sleeve are connected into a whole, and a fluid gap is formed between the sealing outer sleeve and the sealing inner sleeve; the upper end of the sealing outer sleeve extends upwards to form a sealing pipe part which is in sealing fit with the sealing ball, and a fluid gap is formed between the outer wall of the sealing pipe part and the water injection pipe; the lower end of the sealing outer sleeve is provided with a limiting convex ring, and the limiting convex ring is abutted with the lower end part of the water injection pipe to limit the elastic sealing element; the sealing pipe part comprises a fluid acting part arranged below the sealing ball, the inner wall and the outer wall of the fluid acting part are conical surfaces inclined to the axis direction, and a space for the sealing pipe part to move upwards under the action of fluid is arranged between the outer wall of the fluid acting part and the water injection pipe.

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