CN218942891U - Liquid heater - Google Patents

Abstract

The utility model discloses a liquid heater, which belongs to the field of household appliances and solves the problem that sealing is unreliable due to the fact that a mechanical structure is adopted for connecting an inner container and a water outlet pipe, and the technical scheme for solving the problem is that a pressing ring for pressing and fixing the top end of a first water outlet pipe at a water outlet is arranged on the outer side of the bottom of the inner container, an annular flange protruding outwards is arranged on the outer side of the top end of the first water outlet pipe, an annular recess is arranged on the edge of the water outlet of the outer wall of the inner container, the pressing ring comprises an outer flange extending outwards and an inner flanging extending inwards, the outer flange is fixedly connected to the outer wall of the inner container, and the annular flange is pressed in the annular recess by the inner flanging. The utility model is mainly used for heating drinkable liquid, and ensures the reliability of sealing by adopting a mechanical structure for connecting the liner and the water outlet pipe.

Description

Liquid heater

Technical Field

The utility model relates to a household appliance, in particular to a liquid heater.

Background

At present, the outlet structure of the electric thermos bottle on the market is usually that a filter screen is arranged on an inner container, the filter screen is connected with a silicone tube, the other end of the silicone tube is connected with a water pump, and the filter screen welded on the inner container is generally welded by two spot welds, so that the risk of water leakage exists, silicone adhesive can be smeared on the contact surface of the silicone tube and the filter screen for sealing, but the silicone adhesive and the silicone tube easily adsorb external gas molecules, and special odor is easily generated in water after long-time water heating and heat preservation.

To solve the above-mentioned technical problem, in the prior art, a mechanical structure is used to ensure sealing instead of silicone adhesive, for example, CN208876116U discloses a liquid heating container, which includes: the bottom of the inner container is provided with a turnup hole which is turned down; the aluminum plate is fixed at the bottom of the outer side of the inner container; the inner container water outlet pipe is sleeved on the outer side of the flanging hole, the upper pipe wall of the inner container water outlet pipe is in interference fit with the flanging hole, and the top of the inner container water outlet pipe is provided with a limiting groove with an opening at the lower end; the water outlet pipe bracket is sleeved on the outer side of the water outlet pipe of the inner container, the top of the water outlet pipe bracket is provided with a pressing rib which is inserted in the limiting groove and presses the limiting groove so that the top of the water outlet pipe of the inner container is clung to the outer bottom surface of the inner container, and the outer side of the upper part of the water outlet pipe bracket is provided with an outwards extending matching surface; the heating tube cover is fastened on the aluminum plate through a screw, and a pressing surface for pressing the matching surface is arranged on the heating tube cover; and the water pump is arranged at the bottom of the outer side of the inner container, and a water inlet pipe of the water pump is in interference fit with the lower pipe wall of the water outlet pipe of the inner container. The sealing and waterproofing are realized by utilizing the matching among the components of the liquid heating container, the gluing process is simplified, and the production efficiency is higher; specifically, the aluminum plate is fixed at the bottom of the liner (for example, the aluminum plate is welded with the bottom of the liner, the heating tube cover is fastened on the aluminum plate through screws, namely, the heating tube cover and the aluminum plate are locked through the screws, so that the compression surface of the heating tube cover presses the matching surface of the water outlet tube support under the action of fastening force of the screws, the compression rib of the water outlet tube support presses the limit groove of the water outlet tube of the liner, and further the top of the water outlet tube of the liner is tightly attached to the bottom surface of the outer side of the liner, so that the longitudinal surface seals water; the upper pipe wall of the water outlet pipe of the inner container is in interference fit with the flanging hole at the bottom of the inner container, and the lower pipe wall of the water outlet pipe of the inner container is in interference fit with the water inlet pipe of the water pump, so that the radial surface seals water, sealing and waterproofing are realized through the matching between all parts of the liquid heating container, the gluing process is simplified, and the production efficiency is higher. In this prior art, compress tightly the outlet pipe support by the heating tube cover earlier, compress tightly the outlet pipe by the outlet pipe support again, the transmission route of pressure is longer, leads to the outlet pipe support to be difficult to reliably compress tightly the outlet pipe and ensures the leakproofness, simultaneously because only seal through radial face laminating between the outside bottom surface of inner bag outlet pipe 3's top and inner bag 1, consequently if the outlet pipe support can not compress tightly the outlet pipe, in case have water to ooze between turn-ups hole and the outlet pipe, will leak out between the outside bottom surface of the top of inner bag outlet pipe 3 and inner bag 1 very easily, the condition of sealed inefficacy appears.

Disclosure of Invention

The utility model aims to provide a liquid heater, which solves the problem that the sealing is unreliable due to the fact that a mechanical structure is adopted for connecting the liner and the water outlet pipe, and ensures the reliability of the sealing due to the fact that the mechanical structure is adopted for connecting the liner and the water outlet pipe.

In order to achieve the above purpose, the utility model adopts the following technical scheme: the utility model provides a liquid heater, including inner bag and play water subassembly, the inner bag bottom is equipped with the delivery port, play water subassembly includes first outlet pipe and water pump, the water inlet of water pump is through first outlet pipe and delivery port intercommunication, the bottom outside of inner bag is equipped with the top of first outlet pipe compresses tightly the clamp ring of being fixed in delivery port department, the top outside of first outlet pipe is equipped with outside convex annular flange, the outer wall of inner bag is equipped with annular recess at the edge of delivery port, the clamp ring includes the outward flange that extends and the inward flange that extends, outer flange fixed connection is in the outer wall of inner bag, make the inward flange compress tightly annular flange in annular recess.

After the technical scheme is adopted, the utility model has the following advantages: the outer flange fixed connection is in the outer wall of inner bag, utilize clamp ring directness and inner bag fixed connection promptly, and the clamp ring is direct to compress tightly the top of first outlet pipe and be fixed in delivery port department, shorten the transmission route of power, ensure that the clamp ring can reliably, make the top of first outlet pipe compress tightly in delivery port department steadily, simultaneously, the clamp ring compresses tightly annular flange in annular sunkenly, annular flange receives the axial extrusion of clamp ring, not only can with annular sunkenly between the radial surface laminating, but also can radial deformation, thereby with annular sunkenly medial surface, lateral surface laminating, thereby can form the seal structure that the curved surface laminated between annular flange and annular sunkenly, compare radial planar seal effect and be better.

Further, the distance from the inward flanging to the bottom surface of the annular recess is H, and the thickness of the annular flange in a natural state is L, wherein L-H=0.8-1.5 mm. By adopting the technical scheme, the annular flange is ensured to deform to a certain extent after being compressed, so that a stable sealing effect is obtained, and the assembling difficulty of the compression ring is not increased.

Further, the top end face of the annular flange is provided with a first plane and a first inclined plane, the bottom face of the annular recess comprises a second plane and a second inclined plane, the first plane is attached to the second plane, and the first inclined plane is attached to the second inclined plane. By adopting the technical scheme, the curved surface structure formed by connecting the first plane and the first inclined plane is mutually jointed with the curved surface structure formed by connecting the second plane and the second inclined plane, the contact area is increased, and the axial pressure applied to the annular flange can enable the joint of the first inclined plane and the second inclined plane to be more compact, so that the sealing effect can be greatly improved.

Further, sealing ribs are arranged on the first plane and/or the first inclined plane. By adopting the technical scheme, the sealing effect is further improved.

Further, the water outlet is formed in the bottom wall of the inner container, the inner container comprises a container body and a heat conducting plate, the annular recess is formed in the outer bottom surface of the container body, the heat conducting plate is fixed to the outer bottom surface of the container body, and the heat conducting plate is provided with an avoidance through hole for avoiding the first water outlet pipe. By adopting the technical scheme, the heating uniformity of the heat-conducting plate can be improved, the first water outlet pipe is connected with the liner body, and the heat-resistant requirement of the first water outlet pipe can be reduced by avoiding the through hole to avoid the direct transfer of the high temperature of the heat-conducting plate to the first water outlet pipe, so that the cost is reduced.

Further, the edge of the water outlet of the liner body is provided with an extension ring extending downwards, the extension ring is positioned at the inner ring side of the annular recess, and the top end of the first water outlet pipe is sleeved at the outer side of the extension ring. By adopting the technical scheme, the extension ring can facilitate the connection of the first water outlet pipe and the liner body, and can also generate radial outward reaction force on the annular flange, so that the sealing effect of the first inclined plane and the second inclined plane is better.

Further, a filter is arranged in the extension ring, the bottom end of the filter extends out of the extension ring, and the top end of the first water outlet pipe is sleeved on the outer side of the filter. By adopting the technical scheme, the filter can optimize water quality, and the top end of the first water outlet pipe is sleeved on the outer side of the filter, so that the filter, the extension ring and the first water outlet pipe are mutually connected to form a stable whole.

Further, the extension ring passes downwards through the avoidance through hole. By adopting the technical scheme, the first water outlet pipe and the extension ring have enough assembly length, and the structural stability of the first water outlet pipe connected with the extension ring is improved.

Further, the heat conducting plate is provided with screw columns, and fastening screws penetrate through the outer flange and are connected with the screw columns to fix the compression ring. By adopting the technical scheme, compared with the liner body, the structure of the screw column formed by the heat conducting plate is easier, and the cost is lower.

Further, at least three outer flanges are uniformly distributed on the circumference of the compression ring; and/or the inner diameter of the inward flanging is D1, the outer diameter of the annular flange is D2, the outer diameter of the top end of the first water outlet pipe is D3, and D3 is less than D1 and less than D2. By adopting the technical scheme, at least three outer flanges are uniformly distributed on the circumference of the compression ring, so that the uniformity of the compression ring for compressing the annular flange is improved, and the reliable and stable sealing effect after compression is ensured; d3 is more than D1 and less than D2, and the convenient clamp ring is sleeved on the first water outlet pipe, and meanwhile, the enough contact area with the annular flange is ensured.

Drawings

The utility model is further described below with reference to the accompanying drawings:

FIG. 1 is a schematic view of a liquid heater (bottom) according to the present utility model;

FIG. 2 is a cross-sectional exploded view of a liquid heater of the present utility model;

FIG. 3 is a cross-sectional view of a liquid heater of the present utility model;

FIG. 4 is an enlarged view of the portion I of FIG. 3;

FIG. 5 is a schematic view of the structure of the compression ring of the present utility model;

FIG. 6 is a cross-sectional view of a first outlet pipe according to the present utility model;

FIG. 7 is a cross-sectional view of the bottom of the bladder of the present utility model;

fig. 8 is a schematic structural view (bottom) of the liner according to the present utility model.

Detailed Description

For the purpose of making the objects, technical solutions and advantages of the embodiments of the present utility model more apparent, the technical solutions of the embodiments of the present utility model will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present utility model, and it is apparent that the described embodiments are only some embodiments of the present utility model, not all embodiments.

The terms "first," "second," "third," "fourth" and the like in the description and in the claims and in the above drawings, if any, are used for distinguishing between similar objects and not necessarily for describing a particular sequential or chronological order. It is to be understood that the data so used may be interchanged where appropriate such that the embodiments of the utility model described herein may be implemented in sequences other than those illustrated or otherwise described herein.

It should be understood that in the present utility model, "comprising" and "having" and any variations thereof are intended to cover non-exclusive inclusion, such that a process, method, system, article, or apparatus that comprises a list of steps or elements is not necessarily limited to those steps or elements that are expressly listed or inherent to such process, method, article, or apparatus.

It should be understood that in the present utility model, "plurality" means two or more. "and/or" is merely an association relationship describing an association object, meaning that three relationships may exist, for example, X and/or Y may represent: x alone, X and Y together, and Y alone. The character "/" generally indicates that the context-dependent object is an "or" relationship. "comprising X, Y and Z", "comprising X, Y, Z" means that all three of X, Y, Z comprise, "comprising X, Y or Z" means that one of the three comprises X, Y, Z, and "comprising X, Y and/or Z" means that any one or any two or three of the three comprise X, Y, Z.

The technical scheme of the utility model is described in detail below by specific examples. The following specific embodiments may be combined with or replaced with each other according to actual situations, and the same or similar concepts or processes may not be described in detail in some embodiments.

As shown in fig. 1 to 8, the present utility model provides a liquid heater, including a liner 100 and a water outlet assembly, wherein a water outlet 101 is provided at the bottom of the liner 100, the water outlet assembly includes a first water outlet pipe 21 and a water pump 22, a water inlet of the water pump 22 is communicated with the water outlet 101 through the first water outlet pipe 21, a compression ring 300 for compressing and fixing the top end of the first water outlet pipe 21 at the water outlet 101 is provided at the outer side of the bottom of the liner 100, an annular flange 211 protruding outwards is provided at the outer side of the top end of the first water outlet pipe 21, an annular recess 102 is provided at the edge of the water outlet 101 on the outer wall of the liner 100, the compression ring 300 includes an outer flange 31 extending outwards and an inner flange 32 extending inwards, the outer flange 31 is fixedly connected to the outer wall of the liner 100, and the inner flange 32 compresses the annular flange 211 in the annular recess 102.

In the utility model, the outer flange 31 is fixedly connected to the outer wall of the liner 100, namely, the compression ring 300 is directly and fixedly connected with the liner 100, the compression ring 300 directly compresses and fixes the top end of the first water outlet pipe 21 at the water outlet 101, the transmission path of force is shortened, the compression ring 300 is ensured to reliably and stably compress the top end of the first water outlet pipe 21 at the water outlet 101, meanwhile, the annular flange 211 is compressed in the annular recess 102 by the compression ring 300, the annular flange 211 is axially compressed by the compression ring 300, and the annular flange 211 is not only in fit with the radial surfaces between the annular recesses 102, but also in radial deformation, so that the annular flange 211 is in fit with the inner side surface and the outer side surface of the annular recess 102, and a curved surface fit sealing structure is formed between the annular flange 211 and the annular recess 102.

The distance from the inner flange 32 to the bottom surface of the annular recess 102 is H, and the thickness of the annular flange 211 in a natural state is L, so that in order to ensure the compression effect, L-h=0.8 to 1.5mm, that is, it is ensured that the annular flange 211 can deform to a certain extent after being compressed, thereby obtaining a stable sealing effect without causing an increase in the assembly difficulty of the compression ring 300.

In one embodiment, the top end surface of the annular flange 211 is provided with a first flat surface 2111 and a first inclined surface 2112, and the bottom surface of the annular recess 102 includes a second flat surface 1021 and a second inclined surface 1022, the first flat surface 2111 being in contact with the second flat surface 1021, and the first inclined surface 2112 being in contact with the second inclined surface 1022. The curved surface structure formed by connecting the first plane 2111 and the first inclined plane 2112 is mutually attached to the curved surface structure formed by connecting the second plane 1021 and the second inclined plane 1022, so that the contact area is increased, and the sealing effect can be greatly improved. If necessary, a sealing structure such as a sealing rib 2113 may be provided on the tip end surface of the annular flange 211, for example, on the first flat surface 2111 and/or the first inclined surface 2112, to further enhance the sealing effect. The first plane 2111, the first inclined plane 2112, the second plane 1021, and the second inclined plane 1022 are all annular surfaces.

In one embodiment, the water outlet 101 is disposed on the bottom wall of the liner 100, the liner 100 includes a liner body 11 and a heat conducting plate 12, the annular recess 102 is disposed on the outer bottom surface of the liner body 11, the heat conducting plate 12 is fixed on the outer bottom surface of the liner body 11, and the heat conducting plate 12 is provided with an avoidance through hole 121 for avoiding the first water outlet pipe 21. The heater 13 can be installed on the heat-conducting plate 12 generally, heating uniformity is increased, and because water is kept in the liner 11 when the liquid heater works normally, the temperature of the liner 11 cannot be too high, the first water outlet pipe 21 is designed to be connected with the liner 11, and the high temperature of the heat-conducting plate 12 is prevented from being directly transmitted to the first water outlet pipe 21 through the avoidance through hole 121, so that the heat-resistant requirement of the first water outlet pipe 21 can be reduced, and the cost is reduced.

In order to facilitate the connection between the first water outlet pipe 21 and the liner 11, an extension ring 111 extending downwards may be provided at the edge of the water outlet 101 of the liner 11, the extension ring 111 is located at the inner ring side of the annular recess 102, and the top end of the first water outlet pipe 21 is sleeved at the outer side of the extension ring 111. The extension ring 111 may exert a radially outward reaction force on the annular flange 211 to better seal the first and second ramps 2112 and 1022 against each other.

In order to improve the use experience of the user, the filter 14 may be installed in the extension ring 111, and in order to improve the reliability of the connection between the first water outlet pipe 21 and the liner 11, the bottom end of the filter 14 may be designed to extend out of the extension ring 111, and the top end of the first water outlet pipe 21 is sleeved on the outer side of the filter 14, so that the filter 14, the extension ring 111, and the first water outlet pipe 21 are mutually connected to form a more stable whole.

In one embodiment, in order to provide a sufficient assembly length between the first water outlet pipe 21 and the extension ring 111, the extension ring 111 may be designed to pass downward through the avoidance hole 121, thereby improving structural stability after the first water outlet pipe 21 is connected to the extension ring 111.

In one embodiment, the heat conductive plate 12 is provided with screw posts 122, and a fastening screw is coupled to the screw posts 122 through the outer flange 31 to secure the compression ring 300. In another embodiment, it is also possible to weld or form screw posts 122 on the outer bottom surface of bladder 11, pass screw posts 122 down through heat-conductive plate 12, and then attach fastening screws to screw posts 122 through outer flange 31 to secure clamp ring 300.

In one embodiment, in order to improve the uniformity of the compression of the annular flange 211 by the compression ring 300, at least three outer flanges 31 are uniformly distributed in the circumferential direction of the compression ring 300, so as to ensure that the sealing effect after compression is reliable and stable.

In one embodiment, the inner diameter of the inner flange 32 is D1, the outer diameter of the annular flange 211 is D2, the outer diameter of the top end of the first water outlet pipe 21 is D3, in order to facilitate the sleeving of the clamping ring 300 on the first water outlet pipe 21, and meanwhile, to ensure that a sufficient contact area with the annular flange 211 is ensured, D3 is less than D1 and less than D2 can be controlled, further, D1-D3 is less than D2-D1 can be selected, that is, the gap between the inner flange 32 and the first water outlet pipe 21 can be smaller, so long as the clamping ring 300 can be conveniently sleeved on the first water outlet pipe 21, that is, D1 is slightly larger than D3, and in order to improve the sealing effect after the clamping, D2-D1 is as large as possible, and D1 is slightly larger than D3 can meet the requirement.

In addition to the preferred embodiments described above, other embodiments of the present utility model are also contemplated as falling within the scope of the claimed utility model, as well as all other embodiments that may be made by one of ordinary skill in the art without making any inventive effort based on the embodiments of the present utility model.

Claims (10)

1. The utility model provides a liquid heater, includes inner bag and play water subassembly, and the inner bag bottom is equipped with the delivery port, goes out water subassembly and includes first outlet pipe and water pump, and the water inlet of water pump is equipped with the top of first outlet pipe and compresses tightly the clamp ring of being fixed in delivery port department through first outlet pipe and delivery port intercommunication in the bottom outside of inner bag, a serial communication port, the top outside of first outlet pipe is equipped with outside convex annular flange, and the outer wall of inner bag is equipped with annular recess at the edge of delivery port, and the clamp ring includes the outward flange and inwards turns over the limit with the inward extension, and outer flange fixed connection is in the outer wall of inner bag, makes the inward turn-ups compress tightly annular flange in annular recess.

2. The liquid heater as claimed in claim 1, wherein the distance from the inward flange to the bottom surface of the annular recess is H, and the thickness of the annular flange in a natural state is L, L-H = 0.8-1.5 mm.

3. The liquid heater as claimed in claim 1, wherein the top end surface of the annular flange is provided with a first flat surface and a first inclined surface, the bottom surface of the annular recess includes a second flat surface and a second inclined surface, the first flat surface is in contact with the second flat surface, and the first inclined surface is in contact with the second inclined surface.

4. A liquid heater as claimed in claim 3, wherein the first planar surface and/or the first inclined surface is provided with sealing ribs.

5. The liquid heater as claimed in claim 1, wherein the water outlet is provided in a bottom wall of the inner container, the inner container includes a container body and a heat-conducting plate, the annular recess is provided in an outer bottom surface of the container body, the heat-conducting plate is fixed to the outer bottom surface of the container body, and the heat-conducting plate is provided with a through hole for avoiding the first water outlet pipe.

6. The liquid heater as claimed in claim 5, wherein the rim of the water outlet of the container body is provided with a downwardly extending ring, the extending ring is located at the inner ring side of the annular recess, and the top end of the first water outlet pipe is sleeved at the outer side of the extending ring.

7. The liquid heater as claimed in claim 6, wherein a filter is installed in the extension ring, a bottom end of the filter extends out of the extension ring, and a top end of the first water outlet pipe is sleeved outside the filter.

8. The liquid heater of claim 6, wherein the extension ring passes downwardly through the relief through hole.

9. The liquid heater as claimed in claim 5, wherein the heat conductive plate is provided with screw posts, and a fastening screw is coupled to the screw posts through the outer flange to fix the clamp ring.

10. The liquid heater as claimed in claim 1, wherein the outer flange is uniformly distributed with at least three in the circumferential direction of the clamp ring; and/or the inner diameter of the inward flanging is D1, the outer diameter of the annular flange is D2, the outer diameter of the top end of the first water outlet pipe is D3, and D3 is less than D1 and less than D2.

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