CN216822828U - Liquid heater - Google Patents

Abstract

The utility model relates to an electrical apparatus field, concretely relates to liquid heater. The kettle comprises a kettle body, a kettle cover and an elastic piece, wherein the kettle cover can be arranged at the upper end of the kettle body in an openable mode, the elastic piece is located between the outer side wall of the kettle cover and the inner side wall of the kettle body, a closed cavity is formed in the elastic piece, the cavity can deform, and the cavity is abutted to the outer side wall of the kettle cover or the inner side wall of the kettle body. The utility model discloses carry out the improved design to the cooperation structure of pot lid and the kettle body, the pot lid cooperation is inseparable relatively under hot condition, is difficult for droing, and the pot lid cooperation is relatively more pine under cold condition, easily opens.

Description

Liquid heater

Technical Field

The utility model relates to an electrical apparatus field, concretely relates to liquid heater.

Background

In the prior electric kettles, health preserving kettles and other liquid heaters on the market, a cover is frequently pulled out by hands, the cover and the kettle body are generally installed in a tight fit manner, for example, a Chinese patent No. CN201870440U, the patent name of which is a ceramic cover anti-loosening structure, discloses a matching structure of the cover and the kettle body, and a sealing ring is arranged at the joint of the ceramic cover and a kettle opening of a ceramic kettle body; the ceramic kettle cover is in transition or interference fit with the sealing ring, and the sealing ring is in transition or movable fit with the kettle opening; the sealing ring is positioned between the kettle cover and the kettle body and used for improving the matching tightness of the kettle cover and the kettle body.

If chinese patent is granted No. CN201879484U, the patent name "machine head sealing structure of soybean milk machine" discloses a cooperation structure of pot lid and kettle body, there is a hollow sealing ring between the machine head upper cover and the machine head lower cover, the machine head upper cover is equipped with a groove with the joint position of the machine head lower cover, the machine head upper cover and the machine head lower cover press the sealing ring in the groove, the machine head lower cover is also equipped with a convex rib, the convex rib is pressed on the sealing ring. The hollow sealing ring is pressed by the upper cover of the machine head and the lower cover of the machine head at the upper and lower positions, and the sealing effect is improved by utilizing the characteristic of large elastic deformation of the hollow silica gel sealing ring.

For example, chinese patent No. CN204336689U, entitled "a kettle", discloses a matching structure of a kettle lid and a kettle body, wherein an elastic salient point protruding to the outside of the kettle lid wall is arranged on the kettle lid wall, and the elastic salient point deforms to adapt to the internal environment of the kettle mouth, forming an interference fit or a snap fit, preventing the kettle lid from falling off. But the kettle cover is also difficult to open due to the pretightening force of the elastic salient points.

Like chinese patent grant publication No. CN208709528U, the patent name discloses in "borosilicate glass electric kettle pot lid" a cooperation structure of pot lid and the kettle body, edge system at the lid has the circular shape eaves, set up the lid ring below the lid, the bottom system of lid ring has protruding muscle, set up the silica gel sealing washer at the lid ring outer wall, the upper portion of silica gel sealing washer contacts with the bottom surface of circular eaves, the lower part of silica gel sealing washer contacts with the upper surface of protruding muscle, the silica gel sealing washer is extruded between circular eaves and protruding muscle, and hug closely the lid ring, the outer wall system of silica gel sealing washer has sealed card strip, sealed card strip and borosilicate glass electric kettle mouth sealed cooperation, drop when preventing the pot lid from pouring water, although the inseparable degree of pot lid has been strengthened to the silica gel sealing washer, the pot lid also can be difficult to open consequently.

For example, chinese patent No. CN208876122U, entitled "a pot lid assembly and electric kettle" discloses a matching structure of a pot lid and a kettle body, wherein the pot lid assembly comprises a pot lid and an elastic sealing ring, the elastic sealing ring is disposed on the pot lid, the elastic sealing ring comprises an elastic sealing portion, the elastic sealing portion is a hollow structure, the elastic sealing portion has an elastic force along the radial direction of the pot lid, and the sealing problem of the pot opening caused by the size tolerance is solved. The elastic sealing part is not closed and is in an open structure.

For example, chinese patent No. CN209863372U, entitled "liquid heating" discloses a matching structure of a pot lid and a pot body, the pot lid includes: the upper end of the cover plate is connected with the side wall of the cover plate, the side wall is matched with the kettle opening in size, and the side wall is provided with at least one mounting hole; install in the elastic cock body of mounting hole, including the installation department with the pore wall complex of mounting hole, be formed with the arch for the lateral wall in the outside one end of installation department, be formed with spacing portion in the inboard one end of installation department, in order to restrict the installation department takes off with the mounting hole. The tightness of the installation of the kettle cover and the kettle body is improved through the telescopic plug body.

However, the liquid heater still has some problems, the matching is tight when the kettle body is in a cold state, the kettle cover is difficult to open, when the kettle body is in a hot state, an elastic medium connected with the kettle cover and the kettle body is heated to be soft, and the kettle cover is easy to fall off when water is poured. The above prior art cannot solve the above problems at the same time.

SUMMERY OF THE UTILITY MODEL

The utility model aims to provide a liquid heater carries out the improved design to the cooperation structure of pot lid and the kettle body, and the pot lid cooperation is inseparable relatively under the hot condition, is difficult for droing, and the pot lid cooperation is comparatively pine under the cold condition is easily opened to the pot lid when the internal cold condition that is in of current liquid heater kettle, when pouring water when the internal hot condition that is in of kettle.

In order to achieve the above purpose, the utility model provides a following technical scheme: the utility model provides a liquid heater, includes the kettle body and pot lid, and the pot lid can open and set up in the upper end of the kettle body, still includes the elastic component, and the elastic component is located between the lateral wall of pot lid and the inside wall of the kettle body, and the elastic component has the confined cavity, the cavity flexible, the cavity is with the lateral wall of pot lid or the inside wall butt of the kettle body.

In the technical scheme, the elastic piece is designed on the liquid heater, the elastic piece is provided with a deformable closed cavity between the pot lid and the pot body, the cavity is elastically contacted with the outer side wall of the pot lid or the inner side wall of the pot body through the deformation of the cavity, the interference between the cavity and the outer side wall of the pot lid or the inner side wall of the pot body is small under the cold condition, the contact area is also relatively small, the friction force is small, the pot lid is relatively loose in matching with the pot body and is easy to open, the cavity expands under the hot condition, the interference between the cavity and the outer side wall of the pot lid or the inner side wall of the pot body is increased, the contact area is relatively increased, the friction force is increased accordingly, and the pot lid is not easy to fall off when the pot lid is matched with the pot body to pour water relatively and tightly. The technical scheme utilizes the principle that the closed space in the cavity expands with heat and contracts with cold, and the effect that the tightness degree of the matching of the kettle cover and the kettle body is automatically adjusted along with the temperature is realized.

The utility model discloses still further set up to: the elastic piece is positioned on the kettle cover and the cavity is abutted against the inner side wall of the kettle body or the elastic piece is positioned on the kettle body and the cavity is abutted against the outer side wall of the kettle cover. Through the arrangement, the elastic piece can be arranged on the kettle cover/kettle body, correspondingly, the cavity is in elastic contact with the kettle body/kettle cover, and the effect that the degree of tightness of the kettle cover and the kettle body matched can be automatically adjusted along with the temperature can be realized.

The utility model discloses still further set up to: the kettle cover is provided with a sealing ring, the side wall of the sealing ring extends outwards to form a bendable extending part, the extending part forms the elastic part, the extending part forms the cavity after being bent, and the extending part is compressed to seal the cavity when the kettle cover is assembled. Through this setting, utilize the extension on the sealing washer as the elastic component, the extension is open state before the installation, and the overlap joint forms a cavity on pot lid or sealing washer after the extension is buckled, thereby the open end of extension compresses tightly sealed when the pot lid equipment and makes the cavity seal, and when the sealing washer played sealed effect like this, can be again according to the elasticity degree of the internal cold and hot state automatically regulated pot lid of kettle.

The utility model discloses still further set up to: the kettle cover comprises an upper cover and a lower cover, and the upper cover and the lower cover are fixed to compress the extending part. Through this setting, the pot lid adopts common multilayer structure, and upper cover and lower cover assembly compress tightly the extension, form a great sealed face, guarantee the sealed effect of cavity.

The utility model discloses still further set up to: the kettle cover is provided with a sealing ring, the elastic piece is formed on the sealing ring or fixed on the sealing ring, and the elastic piece is provided with a closed cavity. Through this setting, the cavity is primary integrative enclosed construction, and the cavity can be fixed alone on the sealing washer, also can regard as the partial structure integrated into one piece on the sealing washer, and the cavity is the structure that the non-overlap joint formed, and inside has hollow enclosure space, need not seal with the help of the pot lid, and the leakproofness is better like this, and the inner space of cavity is invariable, and inside gas expansion uniformity is good, can not worry the installation back gas leakage or the extrusion deformation situation, does not receive the influence of installation difference.

The utility model discloses still further set up to: the kettle cover is provided with a mounting rib extending downwards, the sealing ring is provided with a positioning groove sinking downwards, and the sealing ring is sleeved on the mounting rib through the positioning groove. Through this setting, installation muscle and constant head tank cooperation provide the location for the installation of sealing washer, and the both sides wall of constant head tank is located the inside and outside both sides of installation muscle respectively, carries on spacingly to the sealing washer, prevents that the sealing washer pine from taking off.

The utility model discloses still further set up to: the cavity is annularly and continuously distributed around the kettle cover or the cavity is discontinuously distributed around the kettle cover. The cavity can be a whole section of ring shape which is distributed continuously, the ring shape can also be broken at certain positions to avoid other structures of the liquid heater, such as a spout or a handle, and can also be a plurality of single structures which are distributed between the kettle cover and the kettle body.

The utility model discloses still further set up to: the outer contour of the cavity is arc-shaped. Through this setting, the outside of arc surface is the contact surface, and during the cold state, the arc surface is close to a line with pot lid or the contact part of the kettle body, and the kettle lid slides in the kettle body or the pot lid extracts the kettle body when making things convenient for the pot lid to install, and during the hot state, the arc surface becomes the irregular shape, and its outside is showing the increase with the area of contact of the kettle body and pot lid, prevents that the pot lid pine from taking off, and at the inflation process, the inflation homogeneity is better, and the use wearing and tearing are less.

The utility model discloses still further set up to: the wall thickness of the cavity is 1 mm-1.5 mm. Through this setting, the wall thickness of cavity is in a reasonable scope, and too thin words are itself the intensity lower, can not form stable contact with pot lid or the kettle body, and too thick words are unfavorable for the deformation of cavity, are difficult to adjust the elasticity degree of pot lid through the deformation of self.

The utility model has the advantages that: 1) the elastic piece is designed on the liquid heater, a deformable closed cavity is arranged between the pot lid and the pot body of the elastic piece, the cavity is in elastic contact with the outer side wall of the pot lid or the inner side wall of the pot body through self deformation, the interference magnitude of the cavity and the outer side wall of the pot lid or the inner side wall of the pot body is small under a cold condition, the contact area is also relatively small, the friction force is small, the pot lid and the pot body are relatively loose and are easy to open, under a hot condition, the cavity expands, the interference magnitude of the cavity and the outer side wall of the pot lid or the inner side wall of the pot body is increased, the contact area is relatively increased, the friction force is increased accordingly, and the pot lid is not easy to fall off when the pot lid and the pot body are relatively matched to pour water tightly. The effect that the degree of tightness of the matching of the kettle cover and the kettle body is automatically adjusted along with the temperature is realized by utilizing the principle that the closed space in the cavity expands with heat and contracts with cold. 2) Utilize the extension on the sealing washer as the elastic component, the extension is open state before the installation, and the overlap joint forms a cavity on pot lid or sealing washer after the extension is buckled, thereby the open end of extension compresses tightly sealed when assembling by the pot lid and makes the cavity seal, and when the sealing washer played sealed effect like this, can be according to the elasticity degree of the internal cold and hot state automatically regulated pot lid of kettle again. 3) The cavity is primary integrative enclosed construction, and the cavity can be fixed alone on the sealing washer, also can regard as the partial structure integrated into one piece on the sealing washer, and the cavity is the structure that non-overlap joint formed, and inside has hollow enclosure space, need not seal with the help of the pot lid, and the closure is better like this, and the inner space of cavity is invariable, and inside gas expansion uniformity is good, can not worry the installation back gas leakage or the extrusion deformation situation, does not receive the influence of installation difference.

Drawings

Fig. 1 is a schematic structural view of a liquid heater according to embodiment 1 of the present invention;

fig. 2 is a split view of a pot lid in embodiment 1 of the present invention;

fig. 3 is a schematic structural view of the cavity in a cold state in embodiment 1 of the present invention;

fig. 4 is a schematic structural view of the cavity in a thermal state according to embodiment 1 of the present invention;

fig. 5 is a schematic view of a partial structure of a liquid heater according to embodiment 1 of the present invention;

FIG. 6 is a schematic view of the structure at A in FIG. 5;

fig. 7 is a state diagram of the present invention in embodiment 1 in which the extension is not mounted;

fig. 8 is a state diagram of the embodiment 1 of the present invention after the extension portion is mounted;

fig. 9 is a schematic structural view of a pot lid in embodiment 2 of the present invention;

fig. 10 is an enlarged view at B in fig. 9.

Reference numerals: the pot body 100, the pot lid 200, the sealing ring 201, the extension 202, the upper cover 203, the lower cover 204, the positioning groove 205, the mounting rib 206, the protrusion 207 and the cavity 300.

Detailed Description

In the description of the present embodiment, it should be noted that, as the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", "front", "rear", etc. appear, the indicated orientation or positional relationship thereof is based on the orientation or positional relationship shown in the drawings, and is only for convenience of description and simplification of description, and does not indicate or imply that the indicated device or element must have a specific orientation, be constructed and operated in a specific orientation, and therefore, should not be construed as limiting the present invention. Furthermore, the terms "first," "second," and "third" as appearing herein are used for descriptive purposes only and are not to be construed as indicating or implying relative importance.

The invention is further described with reference to the drawings and the specific embodiments.

Example 1: as shown in figures 1 to 8 of the drawings,

a liquid heater comprises a kettle body 100 and a kettle cover 200, wherein the kettle cover 200 is openably arranged at the upper end of the kettle body 100, the liquid heater also comprises an elastic element which is arranged between the outer side wall of the kettle cover 200 and the inner side wall of the kettle body 100, the elastic element is provided with a closed cavity 300, the cavity 300 can be deformed, the cavity 300 forms elastic contact with the outer side wall of the kettle cover 200 or the inner side wall of the kettle body 100 through self deformation, in a cold state, the interference between the cavity 300 and the outer side wall of the kettle lid 200 or the inner side wall of the kettle body 100 is small, the contact area is relatively small, therefore, the friction is small, the kettle cover 200 is matched with the kettle body 100 relatively loosely and is easy to open, under the thermal state, the cavity 300 expands, the interference between the cavity 300 and the outer side wall of the pot lid 200 or the inner side wall of the pot body 100 is increased, the contact area is relatively increased, the friction force is increased accordingly, and the pot lid 200 is not easy to fall off when the pot lid 200 is matched with the pot body 100 to pour water relatively tightly. By utilizing the principle of thermal expansion and cold contraction of the closed space in the cavity 300, the degree of tightness of the matching between the pot lid 200 and the pot body 100 is automatically adjusted according to the cold and hot states in the pot body 100, so that the pot lid 200 and the pot body 100 are tightly matched in the hot state, and the pot lid 200 and the pot body 100 are loosely matched in the cold state.

The position of the elastic member determines the contact object of the cavity 300, if the elastic member is located on the lid 200, the cavity 300 abuts against the inner side wall of the kettle body 100, and if the elastic member is located on the kettle body 100 and the cavity 300 abuts against the outer side wall of the lid 200. The elastic element can be arranged on the pot lid 200/the pot body 100, correspondingly, the cavity 300 is elastically contacted with the pot body 100/the pot lid 200, and the effect that the matching tightness degree of the pot lid 200 and the pot body 100 can be automatically adjusted along with the temperature can be realized. The following description will be made by taking an example in which the elastic member is mounted on the pot lid 200.

Be equipped with sealing washer 201 on pot lid 200, the lateral wall of sealing washer 201 outwards extends and forms bendable extension 202, extension 202 uses as the elastic component, extension 202 is open state before the installation, the overlap joint forms an outline and is curved cavity 300 on sealing washer 201 after extension 202 buckles, thereby the open end of extension 202 compresses tightly sealed when being assembled by pot lid 200 and makes cavity 300 seal, pot lid 200 adopts common upper cover 203, lower cover 204 multilayer structure, compress tightly extension 202 when upper cover 203 and lower cover 204 assemble, form a great sealed face, guarantee the closure effect of cavity 300. The protrusion 207 is disposed on the extension 202, and after the extension 202 is bent, the protrusion 207 is located on the outer side of the lower cover 204 to position the lower cover 204. In order to facilitate the installation of the sealing ring 201, a mounting rib 206 extending downward is arranged on the upper cover 203, the sealing ring 201 is provided with a positioning groove 205 recessed downward, the sealing ring 201 is sleeved on the mounting rib 206 through the positioning groove 205, the mounting rib 206 is matched with the positioning groove 205 to provide positioning for the installation of the sealing ring 201, two side walls of the positioning groove 205 are respectively located on the inner side and the outer side of the mounting rib 206 to limit the sealing ring 201, and the sealing ring 201 is prevented from being loosened. Thus, the sealing ring 201 has a sealing effect, and the degree of tightness of the kettle lid 200 can be adjusted by utilizing the deformation of the cavity 300 formed by bending the extension part 202.

The chamber 300 may be a full ring shape distributed continuously; the ring may also be broken at certain locations to avoid other structures on the liquid heater, such as the spout or the handle, so that the cavity 300 may be designed in two sections, forming an avoidance gap at the spout and the handle, respectively; the cavity 300 may also be a plurality of single structures uniformly distributed between the lid 200 and the body 100.

The cavity 300 is arc-shaped in the longitudinal section of the outer contour, the outermost side of the arc surface is a contact surface, when in a cold state, the contact part of the arc surface and the kettle lid 200 or the kettle body 100 is close to a line, the kettle lid 200 can be conveniently slid into the kettle body 100 or the kettle lid 200 can be conveniently pulled out of the kettle body 100 when being installed, when in a hot state, the arc surface is changed into an irregular shape, the contact area between the outermost side of the arc surface and the kettle body 100 or the kettle lid 200 is obviously increased, the kettle lid 200 is prevented from being loosened, and in the expansion process, the expansion uniformity is good, and the abrasion is less in the use process.

The wall thickness of the cavity 300 is 1 mm-1.5 mm, the wall thickness of the cavity 300 is in a reasonable range, if the wall thickness is too thin, the wall thickness is low, the wall thickness cannot be stably contacted with the pot lid 200 or the pot body 100, if the wall thickness is too thick, the deformation of the cavity 300 is not facilitated, and the tightness degree of the pot lid 200 is difficult to adjust through the deformation of the wall thickness. The size of the unilateral interference between the side edge of the cavity 300 and the inner side wall of the kettle body 100 is about 1.0 mm-2.0 mm in a cold state, and the size of the unilateral interference is about 2.5 mm-5 mm before the cavity 300 is installed in a hot state. The distance D between the root of the cavity 300 and the inner side wall of the kettle body 100 is 3 mm-7 mm, and the effect is better.

In other embodiments, the sealing ring 201 and the elastic member may be independent bodies, the sealing ring 201 serves to seal the lid 200, and the elastic member realizes that the lid 200 is more tightly fitted to the kettle body 100 in a hot state and the lid 200 is more easily opened in a cold state.

Example 2: based on the mechanism of the above embodiment, and different from the structure of the cavity 300 in the above embodiment, as shown in fig. 9 and fig. 10, the elastic member itself has a closed cavity 300, the cavity 300 is a native integrated closed structure, the cavity 300 can be fixed on the sealing ring 201 alone, or can be formed integrally as a partial structure on the sealing ring 201, the cavity 300 is a non-overlapped structure, and the inside has a hollow closed structure, and does not need to be sealed by the pot lid 200, so that the sealing performance is better, the inner space of the cavity 300 is constant, the internal gas expansion consistency is good, there is no fear of air leakage or extrusion deformation after installation, and the installation difference is not affected.

The above-mentioned embodiment is right the utility model specifically describes, only is used for going on further the explanation to the utility model, can not understand right the utility model discloses the limited of scope of protection, and technical engineer in this field is right according to above-mentioned utility model's content the utility model discloses make some non-essential improvements and adjustment all fall into within the scope of protection of the utility model.

Claims (10)

1. The utility model provides a liquid heater, includes the kettle body and pot lid, the pot lid can open the upper end that sets up at the kettle body, its characterized in that: still include the elastic component, the elastic component is located between the lateral wall of pot lid and the inside wall of the kettle body, and the elastic component has a confined cavity, the cavity deformable, the cavity and the lateral wall of pot lid or the inside wall butt of the kettle body.

2. A liquid heater as claimed in claim 1, wherein: the elastic piece is positioned on the kettle cover and the cavity is abutted against the inner side wall of the kettle body or the elastic piece is positioned on the kettle body and the cavity is abutted against the outer side wall of the kettle cover.

3. A liquid heater as claimed in claim 1, wherein: the kettle cover is provided with a sealing ring, the side wall of the sealing ring extends outwards to form a bendable extending part, the extending part forms the elastic part, the extending part forms the cavity after being bent, and the extending part is compressed to seal the cavity when the kettle cover is assembled.

4. A liquid heater as claimed in claim 3, wherein: the kettle cover comprises an upper cover and a lower cover, and the upper cover and the lower cover are fixed to compress the extending part.

5. A liquid heater as claimed in claim 1, wherein: the kettle cover is provided with a sealing ring, the elastic piece is formed on the sealing ring or fixed on the sealing ring, and the elastic piece is provided with a closed cavity.

6. A liquid heater as claimed in claim 3, 4 or 5, wherein: the kettle cover is provided with a mounting rib extending downwards, the sealing ring is provided with a positioning groove sinking downwards, and the sealing ring is sleeved on the mounting rib through the positioning groove.

7. A liquid heater as claimed in any one of claims 1 to 5, wherein: the cavity is annularly and continuously distributed around the kettle cover.

8. A liquid heater as claimed in any one of claims 1 to 5, wherein: the cavity is discontinuously distributed around the kettle cover.

9. A liquid heater as claimed in any one of claims 1 to 5, wherein: the outer contour of the cavity is arc-shaped.

10. A liquid heater as claimed in any one of claims 1 to 5, wherein: the wall thickness of the cavity is 1 mm-1.5 mm.

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