An appliance coupler pumping device

Abstract

The present invention provides an appliance coupler water pumping device for an inner pot separable liquid heater. The heating plate of the inner pot has a first through hole. The appliance coupler water pumping device includes: a connector fixedly connected to the heating plate, with a water inlet pipe assembly provided at the central position of the connector, and the water inlet pipe assembly is communicated with the interior of the inner pot through the first through hole; an appliance input socket plugged and matched with the connector, and a water pumping pipe assembly is provided at the central position of the appliance input socket; wherein, when the connector is plugged into the appliance input socket, the water inlet pipe assembly is communicated with the water pumping pipe assembly, and in the water pumping state, the liquid in the inner pot sequentially flows out through the water inlet pipe assembly and the water pumping pipe assembly, so as to transfer the hot water from the kettle to the drinking vessel.

Description

Technical Field

[0001] The present invention relates to an automatic water-pumping electric kettle, and particularly to an appliance coupler water-pumping device. Background Art

[0002] In daily life, electric kettles are essential household appliances in modern kitchens and living rooms due to their fast boiling speed and convenience, and are suitable for making tea, boiling water, making drinks, and making milk for babies. Traditional kettles require users to lift the kettle and tilt it to pour water from the spout into an external water container. During this process, users need to be highly concentrated, and if they are not careful, water may spill. Especially for children, the elderly, and users with physical disabilities, it is easy to cause burns and there are safety hazards. Existing electric kettles with automatic water outlet function do not have the function of separating the inner liner, and the methods of filling water into the kettle and cleaning the inner liner are complex, causing many inconveniences to users. Summary of the Invention

[0003] The present invention aims to solve at least one of the technical problems existing in the prior art or related technologies.

[0004] In view of this, an object of the present invention is to provide an appliance coupler water-pumping device.

[0005] To achieve the above object, the technical solution of the present invention provides an appliance coupler water-pumping device, including: a separable liquid heater for the inner liner, and the heating plate of the inner liner has a first through hole; the appliance coupler water-pumping device includes: a connector fixedly connected to the heating plate, and a water inlet pipe assembly is provided at the central position of the connector, and the water inlet pipe assembly is communicated with the inside of the inner liner through the first through hole; an appliance input socket inserted and matched with the connector, and a water extraction pipe assembly is provided at the central position of the appliance input socket; wherein, when the connector is inserted into the appliance input socket, the water inlet pipe assembly is communicated with the water extraction pipe assembly, and in the water-pumping state, the liquid in the inner liner flows outwards through the water inlet pipe assembly and the water extraction pipe assembly in sequence.

[0006] Further, the water inlet pipe assembly specifically includes: a first sealing sleeve hermetically connected to the heating plate, the first sealing sleeve is provided with a second through hole penetrating through the first sealing sleeve, and the second through hole is communicated with the inside of the inner liner; a water inlet pipe, one end of the water inlet pipe is hermetically connected to the first sealing sleeve and the other end is inserted and matched with the water extraction pipe assembly, and a first support portion is provided on the inner wall of the water inlet pipe along the radial direction of the water inlet pipe, and a plurality of second water leakage holes communicating both sides of the water inlet pipe are provided on the first support portion; a water sealing slider slidably arranged in the water inlet pipe; a first spring arranged between the water sealing slider and the first support portion, one end of the first spring abuts against the water sealing slider and the other end abuts against the first support portion; wherein, when there is negative pressure in the water inlet pipe, there is a gap between the water sealing slider and the first sealing sleeve, and when there is no negative pressure in the water inlet pipe, one end of the water sealing slider extends into the second through hole to close the second through hole.

[0007] Furthermore, the water inlet pipe assembly further includes: a second sealing sleeve disposed inside the water inlet pipe. The second sealing sleeve is located on the side of the first support portion away from the first sealing sleeve, and the second sealing sleeve is provided with a third through hole along the axial direction of the water inlet pipe. Specifically, the water extraction pipe assembly includes: a water extraction pipe, and an annular second support portion is formed by a radial protrusion on the outer wall of the water extraction pipe close to the second sealing sleeve. A second spring is sleeved on the water extraction pipe. The second spring is located on the side of the second support portion away from the second sealing sleeve, and one end of the second spring abuts against the second support portion and the other end abuts against the appliance input socket. When the connector is inserted into the appliance input socket, the water extraction pipe is inserted into the third through hole and is sealingly connected to the second sealing sleeve.

[0008] Furthermore, the water inlet pipe assembly further includes: a housing, which is tubular. One end of the housing is provided with an opening, and a housing edge portion is formed by a radial extension at the opening of the tube wall of the housing. The housing edge portion is connected to the hole wall of the first through hole. The other end of the housing is the bottom surface that closes the housing, and a plurality of first water leakage holes are provided on the bottom surface. Along the axial direction of the housing, the first sealing sleeve sequentially forms a first step and a second step. The first step extends into the first through hole, and the second step abuts against the heating plate, so that the first sealing sleeve is sealingly connected to the heating plate.

[0009] Furthermore, a ring-shaped sealing portion is formed by a radial protrusion on the outer wall of the water inlet pipe close to the first sealing sleeve. Along the axial direction of the water inlet pipe, a ring-shaped protrusion portion is provided on the side of the sealing portion close to the first sealing sleeve. A first depression is provided on the side of the first step in the first sealing sleeve facing the water inlet pipe, and a second depression is provided on the side of the second step facing the water inlet pipe. Along the axial direction of the water inlet pipe, both sides of the sealing portion respectively abut against the second step and the connector, the pipe wall of the water inlet pipe is inserted into the first depression, and the protrusion portion extends into the second depression, realizing the sealing connection between the water inlet pipe and the first sealing sleeve.

[0010] Furthermore, a first chamfer is provided at one end of the second through hole close to the water sealing slider; a first conical surface is provided at one end of the water sealing slider facing the first sealing sleeve, and the first conical surface is in sealing cooperation with the conical surface of the first chamfer; a second chamfer is provided at one end of the third through hole close to the water extraction pipe; a second conical surface is provided at one end of the water extraction pipe facing the second sealing sleeve, and the second conical surface is in sealing cooperation with the conical surface of the second chamfer. Preferably, a third chamfer is provided at the end of the second through hole away from the first sealing sleeve; a fourth chamfer is provided at the end of the third through hole away from the water extraction pipe.

[0011] Further, along the axial direction of the water inlet pipe, a first sealing surface, a second sealing surface, a third sealing surface, and a fourth sealing surface are sequentially arranged on the second chamfer. Among them, the first sealing surface, the second sealing surface, and the fourth sealing surface are conical surfaces. When the connector is inserted into the appliance input socket, the second conical surface abuts against the first sealing surface, causing the first sealing surface to deform, and the second conical surface fits with the second sealing surface. The outer wall of the water extraction pipe fits with the third sealing surface, thereby realizing the sealed connection between the water extraction pipe and the second sealing sleeve.

[0012] Further, on the side of the water sealing slider facing the first supporting portion, a first limiting portion is recessed inward. The first supporting portion is provided with a columnar second limiting portion protruding toward the first sealing sleeve. One end of the first spring extends into the first limiting portion and abuts against the water sealing slider, and the other end is sleeved on the second limiting portion and abuts against the first supporting portion. Preferably, a plurality of cylindrical supporting columns are arranged on the side surface of the water sealing slider, and the water sealing slider is in line contact with the inner wall of the water inlet pipe through the plurality of supporting columns.

[0013] Further, it further includes: a water extraction pump provided on the water extraction pipe. When the connector is inserted into the appliance input socket and the water extraction pump is in the on state, a negative pressure is generated in the water inlet pipe, causing the first spring to be compressed, and the water sealing slider is separated from the first sealing sleeve. When the water extraction pump is in the off state, there is no negative pressure in the water inlet pipe, and the first spring pushes the water sealing slider to abut against the first sealing sleeve.

[0014] Further, it further includes: a grounding ring, a first signal ring, a second signal ring, a first conductive ring, and a second conductive ring assembled on the appliance input socket; a plug terminal fixedly assembled with the appliance input socket, and the plug terminal is electrically connected to the grounding ring, the first signal ring, the second signal ring, the first conductive ring, and the second conductive ring respectively; a conductive electrode insert fixedly assembled with the connector, and the conductive electrode insert is electrically connected to the grounding ring, the first signal ring, the second signal ring, the first conductive ring, and the second conductive ring respectively; a dry burning protection bimetal fixedly assembled with the heating plate.

[0015] The beneficial effects brought by the technical solution provided by the embodiments of the present invention are as follows: The appliance coupler pumping device used in the separable liquid heater with an inner tank of the present invention includes a water inlet pipe and a water extraction pipe correspondingly arranged on the connector. During operation, the water inlet pipe is inserted into the inner tank, and the socket is provided with an elastic white environmental protection first sealing sleeve. The outer wall of the first sealing sleeve is closely fitted with the housing, and at the same time, the outer wall of the first sealing sleeve is closely fitted with the inner wall of the water inlet pipe of the connector. A rigid plastic water sealing slider is used to seal the backflow. The upper end of the first sealing sleeve is matched with the heating plate and is pressed tightly by the housing to prevent water leakage at the heating plate. The other end is matched with the water inlet pipe to prevent water leakage around the water inlet pipe. A water sealing slider is arranged in the water inlet pipe and abuts against the lower insertion part of the first sealing sleeve to achieve the water sealing effect. When the liquid flows through the water inlet pipe and the water extraction pipe, the water sealing slider opens the water inlet pipe under the action of water pressure, and the water flows through the water inlet pipe into the water inlet assembly and flows out of the kettle body through the water extraction pipe. When the water volume in the kettle is lower than the minimum water volume, at this time, the sealing slider covers the sealing port through the compression spring, thus achieving an outstanding sealing effect. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 FIG. shows an exploded schematic view of the appliance coupler pumping device according to an embodiment of the present invention;

[0017] Figure 2 FIG. shows a cross-sectional structural schematic view of the appliance coupler pumping device according to an embodiment of the present invention;

[0018] Figure 3 FIG. shows Figure 2 a partial enlarged schematic view of part A in;

[0019] Figure 4 FIG. shows Figure 2 a partial enlarged schematic view of part B in;

[0020] Figure 5 FIG. shows a cross-sectional structural schematic view of the first sealing sleeve according to an embodiment of the present invention;

[0021] Figure 6 FIG. shows a cross-sectional structural schematic view of the water inlet pipe according to an embodiment of the present invention;

[0022] Figure 7 FIG. shows a structural schematic view of the water inlet pipe according to an embodiment of the present invention from a top view perspective;

[0023] Figure 8 FIG. shows a structural schematic view of the heating plate according to an embodiment of the present invention from a top view perspective;

[0024] Figure 9 FIG. shows a cross-sectional schematic view of the second sealing sleeve and the water extraction pipe according to an embodiment of the present invention;

[0025] Figure 10The structural schematic diagram of the water-sealing slider according to an embodiment of the present invention is shown.

[0026] The symbols in the figure are explained as follows:

[0027] 1 Connector, 2 Appliance input socket, 20 Heating plate, 202 First through hole, 3 Water inlet pipe, 31 Sealing part, 311 Protruding part, 32 First support part, 321 Second limiting part, 322 Second water leakage hole, 4 First spring, 5 Water-sealing slider, 51 First conical surface, 52 First limiting part, 53 Support column, 6 First sealing sleeve, 61 First step, 611 First depression, 62 Second step, 621 Second depression, 63 Second through hole, 631 First chamfer, 632 Third chamfer, 7 Housing, 71 Housing edge part, 72 Bottom surface, 721 First water leakage hole, 8 Second spring, 9 Water extraction pipe, 91 Second support part, 92 Second conical surface, 10 Second sealing sleeve, 101 Third through hole, 1010 Second chamfer, 1011 First sealing surface, 1012 Second sealing surface, 1013 Third sealing surface, 1014 Fourth sealing surface, 1020 Fourth chamfer. Detailed implementation manners

[0028] To make the objectives, technical solutions and advantages of the present invention clearer, the embodiments of the present invention and their beneficial effects will be further described in detail below with reference to the accompanying drawings.

[0029] The water extraction device of the automatic water extraction kettle is an important component that passes through the conduit in the appliance coupler and directly guides the liquid from the bottom of the kettle to the spout. This device has an anti-backflow mechanism. When the inner container is lifted, the inner container can be separated from the base water extraction assembly, and the liquid in the inner container will not leak from the bottom, which is convenient for cleaning the kettle body separately or directly receiving water.

[0030] As Figure 1 and Figure 2 shown, an embodiment of the present invention provides an appliance coupler water extraction device for a liquid heater with a separable inner container, which directly guides the liquid from the bottom of the kettle to important components such as the spout and discharges the water from the kettle.

[0031] Among them, as Figure 8As shown in the figure, a first through hole 202 is provided on the heating plate 20 (i.e., the iron rack) of the inner container. The appliance coupler water pumping device specifically includes: a connector 1, a water inlet pipe assembly, an appliance input socket 2, and a water suction pipe assembly. Specifically, the connector 1 is fixedly connected to the heating plate 20. Specifically, the connector 1 is fixed to the heating plate 20 by a plurality of bolts; a circular hole is provided at the central position of the connector 1, and the water inlet pipe assembly is arranged in the circular hole of the connector 1. A water inlet channel is formed in the water inlet pipe assembly, and the first end of the water inlet pipe assembly extends into the first through hole 202 and is hermetically connected to the heating plate 20, so that the water inlet channel is communicated with the inside of the inner container. Therefore, the liquid in the inner container can flow into the water inlet channel of the water inlet pipe assembly through the first through hole 202. A circular hole penetrating the appliance input socket 2 is provided at the central position of the appliance input socket 2, and the water suction pipe assembly is arranged in the circular hole of the appliance input socket 2 and passes out through the circular hole. The appliance input socket 2 is in plug-in fit with the connector 1, that is, when the kettle in the separable liquid heater of the inner container is placed on the connector 1, the appliance input socket 2 is in plug-in fit with the connector 1. One end of the water suction pipe assembly is inserted into the water inlet channel and is hermetically connected to the second end of the water inlet pipe assembly, so that the water path is communicated. In the water pumping state, the liquid in the inner container flows outwards in sequence through the water inlet channel and the water suction pipe assembly; compared with the traditional kettle that requires the user to lift the kettle and tilt it to pour the water from the spout into an external water container, in the technical solution of the present application, the user does not need to lift the kettle, that is, the water in the inner container of the kettle can flow outwards through the water inlet pipe assembly and the water suction pipe assembly, reducing the occurrence of spilling and avoiding scalding children, the elderly and users with physical disabilities. Therefore, the technical solution proposed by the present invention is highly safe. When the kettle is taken out, the appliance input socket 2 is separated from the connector 1, and the water path is disconnected.

[0032] Further, the water inlet pipe assembly specifically includes: a housing 7, a first sealing sleeve 6, a water inlet pipe 3, a second sealing sleeve 10, a water sealing slider 5, and a first spring 4.

[0033] As Figure 3As shown, the housing 7 is tubular. One end of the housing 7 is provided with an opening. At the opening of the tube wall of the housing 7, a flange portion 71 extends radially. The flange portion 71 is connected to the pore wall of the first through hole 202. The other end of the housing 7 is the bottom surface 72 that closes the housing 7, and a plurality of first water leakage holes 721 are provided on the bottom surface 72. Along the axial direction of the housing 7, the first sealing sleeve 6 sequentially forms a first step 61 and a second step 62, and is provided with a second through hole 63 penetrating through the first sealing sleeve 6. The first step 61 extends into the housing 7, and the second step 62 abuts against the heating plate 20, so that the first sealing sleeve 6 is hermetically connected to the housing 7 and the heating plate 20 respectively. Among them, the housing 7 isolates the first sealing sleeve 6 from the interior of the inner tank, having the function of protecting the first sealing sleeve 6. Specifically, the first sealing sleeve 6 is made of an elastic sealing material such as silica gel or rubber. The housing 7 covers the first sealing sleeve 6 inside the housing 7, which can prevent damage to the first sealing sleeve 6 by external objects, and fix the first sealing sleeve 6, playing a pressing role to prevent water leakage due to the generation of gaps between the heating plate 20 and the first sealing sleeve 6. The water inlet pipe 3 is provided at the central position of the connector 1. One end of the water inlet pipe 3 is hermetically connected to the first sealing sleeve 6, and the other end is in plug-in fit with the water extraction pipe assembly. When the water inlet pipe 3 is plugged into the water extraction pipe assembly, the liquid in the inner tank can flow out through the water inlet pipe 3 and the water extraction pipe assembly.

[0034] It should be emphasized that by providing the housing 7 and providing a plurality of water leakage holes 721 on the bottom surface 72 of the housing 7, it is possible to prevent large-scale water scale or solid particles at the bottom of the heating plate 20 from flowing into the water inlet pipe 3 or the inside of the water extraction pipe 9 along with the liquid, causing blockage.

[0035] Optionally, the multiple water leakage holes 721 on the bottom surface 72 are densely arranged so that the bottom surface 72 is in a grid shape.

[0036] Furthermore, as Figure 6 shown, a ring-shaped sealing portion 31 is formed by the outer wall of the water inlet pipe 3 near the first sealing sleeve 6 protruding radially along the water inlet pipe 3. Along the axial direction of the water inlet pipe 3, a ring-shaped protruding portion 311 is provided on the side of the sealing portion 31 close to the first sealing sleeve 6; as Figure 5 shown, a first recess 611 is provided on the side of the first step 61 in the first sealing sleeve 6 facing the water inlet pipe 3, and a second recess 621 is provided on the side of the second step 62 facing the water inlet pipe 3; among them, as Figure 3 shown, both sides of the sealing portion 31 along the axial direction of the water inlet pipe 3 abut against the second step 62 and the connector 1 respectively, so that the sealing portion 31 abuts against the second step 62 of the first sealing sleeve 6, and the tube wall of the water inlet pipe 3 is inserted into the first recess 611, and the protruding portion 311 extends into the second recess 621, realizing the sealing connection between the water inlet pipe 3 and the first sealing sleeve 6, and preventing liquid from leaking between the first sealing sleeve 6 and the water inlet pipe 3.

[0037] Furthermore, as Figure 6 andFigure 7 As shown, a first support portion 32 arranged radially along the inner wall of the water inlet pipe 3 is provided on the inner wall of the water inlet pipe 3, and a plurality of second water leakage holes 322 communicating both sides of the water inlet pipe 3 are provided on the first support portion 32.

[0038] As Figure 2 and Figure 3 shown, the water sealing slider 5 is slidably arranged in the water inlet pipe 3; a first spring 4 is arranged between the water sealing slider 5 and the first support portion 32. A first limiting portion 52 is formed by inward depression on one side of the water sealing slider 5 facing the first support portion 32. The first support portion 32 is provided with a columnar second limiting portion 321 protruding towards the first sealing sleeve 6. One end of the first spring 4 extends into the first limiting portion 52 and abuts against the water sealing slider 5, and the other end is sleeved on the second limiting portion 321 and abuts against the first support portion 32. Thus, when the first spring 4 is in a compressed state, there is a gap between the water sealing slider 5 and the first sealing sleeve 6, and the liquid in the inner container can flow into the water extraction pipe 9 in sequence through the first water leakage hole 721, the second through hole 63, the gap between the water sealing slider 5 and the first sealing sleeve 6, and the second water leakage hole 322; when the first spring 4 is in an extended state, one end of the first spring 4 that pushes the water sealing slider 5 extends into the second through hole 63 to close the second through hole 63, thereby preventing the liquid in the inner container from flowing out through the water inlet pipe 3.

[0039] Furthermore, as Figure 10 shown, a plurality of cylindrical support columns 53 are arranged on the side surface of the water sealing slider 5. The water sealing slider 5 is in line contact with the inner wall of the water inlet pipe 3 through the plurality of support columns 53 to reduce the resistance when the water sealing slider 5 slides in the water inlet pipe 3, and at the same time can play a supporting role, so that the water sealing slider 5 is not easily stuck due to overall skew.

[0040] Furthermore, as Figure 4As shown, the second sealing sleeve 10 is disposed inside the water inlet pipe 3. The second sealing sleeve 10 is located on the side of the first support portion 32 away from the first sealing sleeve 6. The second sealing sleeve 10 is provided with a third through hole 101 along the axial direction of the water inlet pipe 3; the first water leakage hole 721, the second through hole 63, the internal space of the water inlet pipe 3, the second water leakage hole 322, and the third through hole 101 are sequentially communicated to form a water inlet channel; the water extraction pipe assembly specifically includes: a water extraction pipe 9 and a second spring 8. The water extraction pipe 9 is disposed at the central position of the appliance input socket 2. A ring-shaped second support portion 91 is formed by a radial protrusion on the outer wall of the water extraction pipe 9 close to the second sealing sleeve 10; the second spring 8 is sleeved on the water extraction pipe 9. The second spring 8 is located on the side of the second support portion 91 away from the second sealing sleeve 10, and one end of the second spring 8 abuts against the second support portion 91 and the other end abuts against the appliance input socket 2; when the connector 1 is inserted into the appliance input socket 2, the water extraction pipe 9 is inserted into the third through hole 101 and is hermetically connected to the second sealing sleeve 10. The second spring 8 provides a supporting force to the second support portion 91 of the water extraction pipe 9, so that when the connector 1 is inserted into the appliance input socket 2, the water extraction pipe 9 is tightly connected to the second sealing sleeve 10, thereby improving the sealing performance of the connection between the water extraction pipe 9 and the second sealing sleeve 10.

[0041] Further, as Figure 3 shown, a first chamfer 631 is provided at one end of the second through hole 63 close to the water sealing slider 5; a first tapered surface 51 is provided at one end of the water sealing slider 5 facing the first sealing sleeve 6. The first tapered surface 51 is in sealing cooperation with the tapered surface of the first chamfer 631. Through the sealing cooperation between the first tapered surface 51 and the first chamfer 631 surface, on the one hand, the contact area of the sealing surface is increased, and on the other hand, since the water sealing slider 5 and the second through hole 63 are in a state of conversion between contact and separation, through the cooperation between the first tapered surface 51 and the first chamfer 631 surface, it has a guiding effect when the water sealing slider 5 moves relative to the second through hole 63, so that the water sealing slider 5 and the second through hole 63 can be better aligned, improving the accuracy of the sealing connection, and further improving the sealing performance.

[0042] Further, as Figure 3 shown, a first limiting portion 52 is formed by an inward depression on one side of the water sealing slider 5 facing the first support portion 32. The first support portion 32 is provided with a columnar second limiting portion 321 protruding toward the first sealing sleeve 6. One end of the first spring 4 extends into the first limiting portion 52 and abuts against the water sealing slider 5, and the other end is sleeved on the second limiting portion 321 and abuts against the first support portion 32, thereby accurately positioning the first spring 4, enabling the spring to provide a stable supporting force to the water sealing slider 5, and improving the stability of the water sealing slider 5 sliding inside the water inlet pipe 3.

[0043] Further, as Figure 4As shown in the figure, a second chamfer 1010 is provided at one end of the third through hole 101 close to the water extraction pipe 9; a second conical surface 92 is provided at one end of the water extraction pipe 9 facing the second sealing sleeve. The second conical surface 92 is in sealing fit with the conical surface of the second chamfer 1010. Through the sealing fit between the second conical surface 92 and the second chamfer 1010 surface, on the one hand, the contact area of the sealing surface is increased. On the other hand, due to the conversion between the contact and separation states of the water extraction pipe 9 and the third through hole 101, through the cooperation between the second conical surface 92 and the second chamfer 1010 surface, when the water extraction pipe 9 moves relative to the third through hole 101, it has a guiding effect, enabling the water extraction pipe 9 and the third through hole 101 to be better aligned, improving the accuracy of the sealed connection, and thus improving the sealing performance.

[0044] And a third chamfer 632 is provided at one end of the second through hole 63 away from the first sealing sleeve 6; a fourth chamfer 1020 is provided at one end of the third through hole 101 away from the water extraction pipe 9. The third chamfer 632 and the fourth chamfer 1020 are used to increase the cross-sectional area of the liquid flow, improving the efficiency of the inner container separable liquid heater in transporting liquid forward.

[0045] Furthermore, as Figure 9 shown in the figure, along the axial direction of the water inlet pipe 3, the second chamfer 1010 is successively provided with a first sealing surface 1011, a second sealing surface 1012, a third sealing surface 1013 and a fourth sealing surface 1014. Among them, the first sealing surface 1011, the second sealing surface 1012 and the fourth sealing surface 1014 are conical surfaces. When the connector 1 is inserted into the appliance input socket 2, the second conical surface 92 abuts against the first sealing surface 1011, causing the first sealing surface 1011 to deform, and the second conical surface 92 fits with the second sealing surface 1012, and the outer wall of the water extraction pipe 9 fits with the third sealing surface 1013, thereby realizing the sealed connection between the water extraction pipe 9 and the second sealing sleeve 10, facilitating docking when placing the inner container, and at the same time, achieving a good sealing effect.

[0046] Specifically, both the first sealing sleeve 6 and the second sealing sleeve 10 are made of rubber material, so they have the characteristics of sealing, anti-slip and elasticity.

[0047] Furthermore, the appliance coupler water pumping device further includes a water pump, and the water pump is arranged on the water extraction pipe 9; among them, when the connector 1 is inserted into the appliance input socket 2 and the water pump is in the open state, the water pump pumps water, and the water in the water extraction pipe 9 flows in a direction away from the water inlet pipe 3. Since the water extraction pipe 9 is communicated with the water inlet pipe 3, a negative pressure is generated in the water inlet pipe 3, so that the first spring 4 is compressed, and the water sealing slider 5 is separated from the first sealing sleeve 6, and a gap is generated between the water sealing slider 5 and the first sealing sleeve 6, so that the liquid in the inner container can flow out through the gap generated between the water sealing slider 5 and the first sealing sleeve 6 and then through the water extraction pipe 9.

[0048] When the water pump is in the closed state and not pumping water, the pressure of the first spring 4 is greater than the water pressure exerted by the liquid in the inner tank on the water sealing slider 5. Therefore, the first spring 4 pushes the water sealing slider 5 against the first sealing sleeve 6 to achieve a sealed state.

[0049] In this technical solution, the first spring 4 and the second spring 8 are compression springs. Specifically, a compression spring is a helical spring that bears axial pressure. Because it can bear pressure, both ends can be open type, closed type, wound flat or ground flat. The cross-section of the material it uses is mostly circular. In this technical solution, a cylindrical compression spring is adopted. There is a certain gap between the coils of the compression spring. When subjected to an external load, the spring contracts and deforms, storing deformation energy.

[0050] The appliance coupler water pumping device further includes: a grounding ring, a first signal ring, a second signal ring, a first conductive ring and a second conductive ring, plug terminals, conductive electrode inserts, and a dry burning protection bimetal. The grounding ring, the first signal ring, the second signal ring, the first conductive ring and the second conductive ring are concentrically assembled on the appliance input socket. The plug terminals are fixedly assembled with the appliance input socket 2, and the plug terminals are electrically connected to the grounding ring, the first signal ring, the second signal ring, the first conductive ring and the second conductive ring respectively; the conductive electrode inserts are fixedly assembled with the connector 1, and the conductive electrode inserts are electrically connected to the grounding ring, the first signal ring, the second signal ring, the first conductive ring and the second conductive ring respectively. The dry burning protection bimetal is fixedly assembled with the heating plate 20 (i.e., the iron frame). When the connector 1 is plugged into the appliance input socket 2, the circuit of the separable liquid heater in the inner tank is connected, and the heating plate 20 heats the water in the inner tank.

[0051] In a specific embodiment, a card slot is provided in the circular hole of the connector 1, and a convex buckle is provided on the outer wall of the water inlet pipe 3 corresponding to the card slot in the circular hole of the connector 1. The water inlet pipe 3 is clamped with the connector 1 through the cooperation of the buckle and the card slot.

[0052] And a card slot is provided in the circular hole of the appliance input socket 2, and a convex buckle is provided on the outer wall of the water extraction pipe 9 corresponding to the card slot in the circular hole of the appliance input socket 2. The appliance input socket 2 is clamped with the water extraction pipe 9 through the cooperation of the buckle and the card slot.

[0053] Embodiment 2

[0054] An appliance coupler water pumping device for a sealed liquid heater includes a connector 1, an appliance input socket 2, a water inlet pipe 3, a first rubber sealing sleeve 6 and a water extraction pipe 9. The water extraction pipe 9 and the appliance input socket 2, and the water inlet pipe 3 and the connector 1 are fixedly assembled. The water extraction pipe 9 is arranged in the middle of the appliance input socket 2. Similarly, the water inlet pipe 3 is arranged in the middle of the connector 1. Because the traditional structures are all provided with several induction rings and other structures, arranging them in the middle can avoid occupying space and making the structure complicated.

[0055] The water extraction pipe 9, the first rubber sealing sleeve (i.e., the first sealing sleeve 6), and the water extraction pipe 9 are sleeved in sequence. The water extraction pipe extends radially to form a water extraction part (i.e., the second supporting part 91), avoiding direct heat aging of the sealing member. There is a chamber in the water inlet pipe 3. The first rubber sealing sleeve is of a stepped structure. The first rubber sealing sleeve has a lower socket part (i.e., the conical surface of the first chamfer 631). The lower socket part is a hole-like structure with a conical surface. The first rubber sealing sleeve is inserted into the chamber of the water inlet pipe. The water sealing slider 5 is inserted into the lower socket part. There is a first spring 4 and a water sealing slider 5 in the chamber. The diameter of the water sealing slider 5 is suitable for the inner diameter of the lower socket part of the first rubber sealing sleeve. One end of the first spring 4 abuts against the chamber wall, and the other end of the first spring 4 abuts against the water sealing slider 5. The water sealing slider 5 has a sealed state and an open state. In the sealed state, the water sealing slider 5 enters the upper socket part through the first spring 4 to form a sealed partition. In the open state, the water sealing slider 5 compresses the spring by water pressure, and the water sealing slider 5 disengages from the lower socket part of the first rubber sealing sleeve to form a water outlet gap.

[0056] A second rubber sealing sleeve is provided on the water inlet pipe; the second rubber sealing sleeve is provided with a lower socket part (i.e., the conical surface of the second chamfer 1010). A second spring 8 and a flange for restricting the second spring 8 (i.e., the second supporting part 91) are provided on the water extraction pipe 9. The water extraction pipe 9 is inserted into the lower socket part of the second rubber sealing sleeve. The water inlet pipe 3 extends radially to form a sealing part 31. There is an axial stop connection between the sealing part 31 and the bottom of the connector 1.

[0057] The connection methods of the water inlet pipe 3 and the water extraction pipe 9 are both snap-fixed. Firstly, it does not damage the structure, and the connection is stable, which is convenient for assembly and disassembly. Secondly, the assembly method is central assembly, which is conducive to forming a snap connection structure with the holes on the connector 1 or the appliance input socket 2. The specific installation and fixing methods with the connector 1 and the appliance input socket 2 are various. The improvement mainly lies in the sealing structure and the position characteristics designed at the bottoms of the connector 1 and the appliance input socket 2. Therefore, no more elaboration and limitation are made here.

[0058] The beneficial effects of the present invention are as follows: The appliance coupler water pumping device for the separable inner liner liquid heater provided by the present invention includes a water inlet pipe and a water pumping pipe correspondingly arranged on the connector. During operation, the water inlet pipe is inserted into the inner liner, and the socket is provided with an elastic white environmental protection first sealing sleeve. The outer wall of the first sealing sleeve is closely fitted with the housing, and at the same time, the outer wall of the first sealing sleeve is closely fitted with the inner wall of the water inlet pipe of the connector. A hard plastic water sealing slider is used to seal the backflow. The upper end of the first sealing sleeve is matched with the heating plate and is pressed by the housing to prevent water leakage at the heating plate. The other end is matched with the water inlet pipe to prevent water leakage around the water inlet pipe. A water sealing slider is arranged in the water inlet pipe and abuts against the lower socket part of the first sealing sleeve to achieve the water sealing effect. When the liquid flows through the water inlet pipe and the water pumping pipe, the water sealing slider opens the water inlet pipe under the action of water pressure, the water flows through the water inlet pipe into the water inlet assembly, and flows out of the kettle through the water pumping pipe. When the water volume in the kettle is lower than the minimum water volume, at this time, the sealing slider covers the sealing port through the compression spring, thereby achieving an outstanding sealing effect.

[0059] In the present invention, the terms "first", "second", "third" are only used for descriptive purposes and cannot be construed as indicating or implying relative importance; the term "plurality" means two or more, unless otherwise clearly defined. The terms "installation", "connection", "connection", "fixation" and other terms should be understood in a broad sense. For example, "connection" can be a fixed connection, a detachable connection, or an integral connection; "connection" can be a direct connection or an indirect connection through an intermediate medium. For those of ordinary skill in the art, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0060] In the description of the present invention, it should be understood that the orientation or positional relationship indicated by the terms "upper", "lower", "left", "right", "front", "rear", etc. is based on the orientation or positional relationship shown in the drawings, and is only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or unit referred to must have a specific direction, be constructed and operated in a specific orientation, and therefore, cannot be construed as a limitation to the present invention.

[0061] In the description of this specification, the description of the terms "one embodiment", "some embodiments", "specific embodiments", etc. means that the specific features, structures, materials or characteristics described in connection with the embodiment or example are included in at least one embodiment or example of the present invention. In this specification, the schematic representations of the above terms do not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described can be combined in any one or more embodiments or examples in a suitable manner.

[0062] The above are only the preferred embodiments of the present invention and are not intended to limit the present invention. For those skilled in the art, the present invention may have various modifications and variations. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present invention shall be included within the protection scope of the present invention.

Claims

1. An appliance coupler pumping device for an inner container separable liquid heater, the heating plate of the inner container having a first through hole; characterized in that, The appliance coupler pumping device includes: A connector fixedly connected to the heating plate. An inlet water pipe assembly is provided at the central position of the connector, and the inlet water pipe assembly communicates with the interior of the inner container through the first through hole. An appliance input socket pluggably mated with the connector. A water extraction pipe assembly is provided at the central position of the appliance input socket. Wherein, when the connector is plugged into the appliance input socket, the inlet water pipe assembly communicates with the water extraction pipe assembly. In the pumping state, the liquid in the inner container flows outwards successively through the inlet water pipe assembly and the water extraction pipe assembly. The inlet water pipe assembly specifically includes: A first sealing sleeve sealingly connected to the heating plate. The first sealing sleeve is provided with a second through hole penetrating the first sealing sleeve, and the second through hole communicates with the interior of the inner container. An inlet water pipe, one end of the inlet water pipe is sealingly connected to the first sealing sleeve, and the other end is pluggably mated with the water extraction pipe assembly. A first support portion is provided on the inner wall of the inlet water pipe along the radial direction of the inlet water pipe, and a plurality of second water leakage holes communicating both sides of the inlet water pipe are provided on the first support portion. A water sealing slider slidably disposed in the inlet water pipe. A first spring disposed between the water sealing slider and the first support portion. One end of the first spring abuts against the water sealing slider, and the other end abuts against the first support portion. A first limiting portion is formed by inward depression on the side of the water sealing slider facing the first support portion. The first support portion is provided with a columnar second limiting portion protruding towards the first sealing sleeve. One end of the first spring extends into the first limiting portion and abuts against the water sealing slider, and the other end is sleeved on the second limiting portion and abuts against the first support portion. Wherein, when there is negative pressure in the inlet water pipe, there is a gap between the water sealing slider and the first sealing sleeve. When there is no negative pressure in the inlet water pipe, one end of the water sealing slider extends into the second through hole to close the second through hole. The inlet water pipe assembly further includes: A housing. The housing is tubular. One end of the housing is provided with an opening. A housing edge portion extends radially along the tube wall at the opening of the housing. The housing edge portion is connected to the hole wall of the first through hole. The other end of the housing is the bottom surface closing the housing, and a plurality of first water leakage holes are provided on the bottom surface. Wherein, along the axial direction of the housing, the first sealing sleeve successively forms a first step and a second step. The first step extends into the first through hole, and the second step abuts against the heating plate, so that the first sealing sleeve is sealingly connected to the heating plate. A ring-shaped sealing portion is formed by radial protrusion on the outer wall of the inlet water pipe near the first sealing sleeve. Along the axial direction of the inlet water pipe, a ring-shaped protrusion portion is provided on the side of the sealing portion close to the first sealing sleeve. A first depression is provided on the side of the first step in the first sealing sleeve facing the inlet water pipe, and a second depression is provided on the side of the second step in the first sealing sleeve facing the inlet water pipe. Wherein, on both sides of the sealing portion along the axial direction of the water inlet pipe, they respectively abut against the second step and the connector. The pipe wall of the water inlet pipe is inserted into the first recess, and the protruding portion extends into the second recess, realizing the sealed connection between the water inlet pipe and the first sealing sleeve.

2. The appliance coupler pumping device according to claim 1, wherein, The water inlet pipe assembly further includes: A second sealing sleeve, disposed inside the water inlet pipe. The second sealing sleeve is located on the side of the first supporting portion away from the first sealing sleeve. The second sealing sleeve is provided with a third through hole along the axial direction of the water inlet pipe; The water extraction pipe assembly specifically includes: A water extraction pipe, on the outer wall of the water extraction pipe near the second sealing sleeve, a ring-shaped second supporting portion protrudes along the radial direction of the water extraction pipe; A second spring, sleeved on the water extraction pipe. The second spring is located on the side of the second supporting portion away from the second sealing sleeve, and one end of the second spring abuts against the second supporting portion and the other end abuts against the appliance input socket; Wherein, when the connector is inserted into the appliance input socket, the water extraction pipe is inserted into the third through hole to be hermetically connected to the second sealing sleeve.

3. The water pumping device of the appliance coupler according to claim 2, wherein A first chamfer is provided at one end of the second through hole close to the water sealing slider; One end of the water sealing slider facing the first sealing sleeve is provided with a first conical surface, and the first conical surface is in sealing cooperation with the conical surface of the first chamfer; A second chamfer is provided at one end of the third through hole close to the water extraction pipe; One end of the water extraction pipe facing the second sealing sleeve is provided with a second conical surface, and the second conical surface is in sealing cooperation with the conical surface of the second chamfer.

4. The water pumping device of the appliance coupler according to claim 3, wherein A third chamfer is provided at one end of the second through hole away from the first sealing sleeve; a fourth chamfer is provided at one end of the third through hole away from the water extraction pipe.

5. The water pumping device of the appliance coupler according to claim 3, wherein Along the axial direction of the water inlet pipe, the second chamfer is sequentially provided with a first sealing surface, a second sealing surface, a third sealing surface and a fourth sealing surface. Among them, the first sealing surface, the second sealing surface and the fourth sealing surface are conical surfaces. When the connector is inserted into the appliance input socket, the second conical surface abuts against the first sealing surface to cause the first sealing surface to deform, and the second conical surface fits with the second sealing surface, and the outer wall of the water extraction pipe fits with the third sealing surface, thereby realizing the sealed connection between the water extraction pipe and the second sealing sleeve.

6. The appliance coupler pumping device according to claim 1, characterized in that, A plurality of cylindrical support columns are provided on the side surface of the water sealing slider, and the water sealing slider is in line contact with the inner wall of the water inlet pipe through the plurality of support columns.

7. The appliance coupler pumping device according to claim 2, wherein, It further includes: A water pump, disposed on the water extraction pipe; Wherein, when the connector is inserted into the appliance input socket, when the water pump is in the open state, a negative pressure is generated in the water inlet pipe, so that the first spring is compressed, and the water sealing slider is separated from the first sealing sleeve. When the water pump is in the closed state, there is no negative pressure in the water inlet pipe, and the first spring pushes the water sealing slider to abut against the first sealing sleeve.

8. The appliance coupler pumping device according to claim 1, wherein Further included are: A grounding coil, a first signal coil, a second signal coil, a first conductive ring, and a second conductive ring assembled on an appliance input socket; Plug terminals fixedly assembled with the appliance input socket, and the plug terminals are electrically connected to the grounding coil, the first signal coil, the second signal coil, the first conductive ring, and the second conductive ring respectively; Conductive electrode inserts fixedly assembled with the connector, and the conductive electrode inserts are electrically connected to the grounding coil, the first signal coil, the second signal coil, the first conductive ring, and the second conductive ring respectively; A dry-burning protection bimetal fixedly assembled with the heating plate.

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