CN211242941U

CN211242941U - Liquid heater

Info

Publication number: CN211242941U
Application number: CN201921221698.4U
Authority: CN
Inventors: 朱泽春; 何莎婕; 吴土荣
Original assignee: Joyoung Co Ltd
Current assignee: Hangzhou Jiuchuang Home Appliances Co ltd
Priority date: 2019-07-30
Filing date: 2019-07-30
Publication date: 2020-08-14
Anticipated expiration: 2029-07-30

Abstract

The utility model discloses a liquid heater has solved the poor problem of leakproofness between inner cup and the charge cavity, and the technical scheme who solves this problem mainly includes the kettle body and has the enclosing cover of charge cavity, and the enclosing cover is equipped with the lid and fits the inner cup of charge cavity, and the inner cup includes inner cup, lower inner cup and sealing washer, and the sealing washer include the fixed part and with the sealing ring, the lower extreme and the sealed cooperation of charge cavity of sealing ring, go up the inner cup and be equipped with the mounting groove that supplies the fixed part installation, the tank bottom wall of mounting groove is equipped with spacing muscle, and lower inner cup compresses tightly the fixed part on spacing muscle, and the top surface of fixed part and the tank bottom wall of mounting groove form the pressure regulation chamber that. The utility model discloses the atmospheric pressure of well pressure regulation intracavity rises and increases along with the temperature, makes the lower extreme of sealing ring contradict in the inner wall of charge door more closely, has improved sealed effect.

Description

Liquid heater

Technical Field

The utility model relates to a small household electrical appliances technical field, especially a liquid heater.

Background

Liquid heater that generally has health preserving function includes the kettle body and pot lid subassembly, the pot lid subassembly is including connecting in the enclosing cover at kettle body top, put in various health preserving materials to kettle body inner chamber at any time for convenience of customers, be equipped with the charge cavity with kettle body inner chamber intercommunication on the enclosing cover, the charge cavity upper cover has closed the inner cup, for the gas tightness that guarantees the inner cup lid and close, sealing washer and charge cavity cooperation are generally established to the edge cover of inner cup, nevertheless there is great area of contact between the pore wall of the side of week of sealing washer and charge cavity, the frictional resistance between sealing washer and the charge cavity has been increased. Get in the kettle body heating process and put the inner cup for convenience of customers, provide a sealed mode among the prior art, be about to the lower extreme of sealing washer and the step face seal fit of charge door, avoid the week side of sealing washer and the vertical inner wall contact of charge door, nevertheless the internal steam volume of kettle causes sealing washer and step face to seal not tight easily when too big, influences the effect of cooking of health preserving material.

SUMMERY OF THE UTILITY MODEL

The utility model aims to achieve provides a liquid heater, improves the sealed effect of sealing washer.

In order to achieve the above purpose, the utility model adopts the following technical scheme: the utility model provides a liquid heater, includes the kettle body and has the enclosing cover of charge door, and the enclosing cover is equipped with the inner cup that covers the charge door, and the inner cup includes inner cup, lower inner cup and sealing washer, and the sealing washer include the fixed part and with the sealing ring, the lower extreme and the sealed cooperation of charge door of sealing ring, going up the inner cup and being equipped with the mounting groove that supplies the fixed part installation, the tank bottom wall of mounting groove is equipped with spacing muscle, and lower inner cup compresses tightly the fixed part on spacing muscle, and the top surface of fixed part forms the pressure regulation chamber that is used for increasing the sealed effect of.

Furthermore, the mounting groove is an annular groove, and the limiting rib extends along the radial direction and is connected to two side walls of the mounting groove.

Further, spacing muscle is equipped with a plurality of and evenly distributed in the mounting groove, and the pressure adjustment chamber is located between the adjacent spacing muscle.

Further, the side of fixed part face lower inner cup is equipped with the fixed slot, and lower inner cup outward flange is equipped with the fixed limit that upwards turns over a book, and supreme lean out is followed to the fixed limit, and fixed limit stretches into the fixed slot and compresses tightly the fixed part on spacing muscle.

Furthermore, one end of the fixed edge extending into the fixed groove is provided with a pressing edge which is turned outwards, and the fixed edge is pressed on the bottom wall of the fixed groove through the pressing edge.

Furthermore, the hole wall of the charging hole is provided with a step surface, the sealing ring downwardly protrudes out of the lower inner cover, the lower end of the sealing ring is provided with an annular sealing surface positioned below the lower inner cover, and the sealing ring is abutted against the step surface through the annular sealing surface for sealing fit;

or, be equipped with the tea basket in the charge door, the tea basket top is equipped with the tea basket turn-ups, and the pore wall of charge door is equipped with the turn-ups's of support tea basket step face, and step face and the sealed cooperation of tea basket turn-ups, the sealing ring downward protrusion in lower inner cup, the lower extreme of sealing ring is equipped with the annular seal face that is located lower inner cup below, and the sealing ring is contradicted in the sealed cooperation of tea basket turn-ups through the annular seal face.

Furthermore, the lower end of the sealing ring comprises a curled edge which is curled inwards, and the annular sealing surface is arranged on the outer side surface of the curled edge; or the diameter of the outer side surface of the sealing ring is reduced from top to bottom.

Further, the sealing washer still includes the connecting portion that radially extends along the kettle body, and fixed part and sealing ring are connected respectively to the up end and the lower terminal surface of connecting portion, and the up end of connecting portion is equipped with annular last sealed face, goes up the inner cup and is equipped with the support wall with the sealed complex of last sealed face outside the mounting groove, and the periphery side parallel and level of support wall and the periphery side parallel and level of connecting portion just all are located the outside of sealing ring.

Further, the inner cup still includes the handle, goes up the inner cup and is equipped with the mounting hole, and the inner cup is equipped with down the mounting hole down, and the screw passes down the mounting hole and goes up the mounting hole and connect in the handle, goes up the inner cup and is equipped with the protruding muscle of annular at last mounting hole department, and the protruding muscle of annular is contradicted in inner cup down.

Furthermore, the handle is provided with a stud, the stud extends into the upper mounting hole, the side surface of the lower inner cover facing the handle is provided with a positioning bulge for positioning and mounting the lower inner cover, the positioning bulge extends into the inner side of the annular convex rib, and the lower mounting hole penetrates through the positioning bulge.

After the technical scheme is adopted, the utility model has the advantages of as follows:

1. firstly, the fixing part of the sealing ring is pressed in the mounting groove of the upper inner cover by the lower inner cover to realize the fixation of the sealing ring, the mounting groove also provides prepositioning for the installation of the fixing part, the lower end of the sealing ring is in sealing fit with the feeding hole, the contact area between the peripheral side surface of the sealing ring and the inner wall of the feeding hole is reduced, namely, the friction resistance in the opening and closing process of the inner cover is reduced, and a user can easily lift the inner cover to realize the feeding; secondly, the bottom wall of the mounting groove is provided with a limiting rib, so that the contact area between the bottom wall of the mounting groove and the fixing part is reduced, the fixing part generates larger local deformation when the upper inner cover is connected with the lower inner cover, and larger pre-tightening force is provided for the connection of the upper inner cover and the lower inner cover; finally, the setting of spacing muscle makes the top surface and the mounting groove of fixed part form the pressure regulation chamber, and when the temperature of inner cup rose, the atmospheric pressure in pressure regulation chamber also increased and formed decurrent pressure to the fixed part, and this pressure drives the lower extreme of sealing ring and compresses tightly the inner wall of charge door, has guaranteed the sealed effect of sealing ring.

2. The mounting groove is provided with the annular groove, so that the fixing part can be mounted with the mounting groove without identifying the direction, the mounting efficiency is improved, and the structures of the upper inner cover and the sealing ring are simplified; spacing muscle has improved the intensity of mounting groove as the both sides wall of strengthening rib connection mounting groove, avoids operating personnel to make the both sides wall of mounting groove damaged because of exerting oneself excessively when impressing the fixed part in the mounting groove.

3. Spacing muscle evenly distributed is in the mounting groove to the gas in the pressure adjustment intracavity is even along the circumference distribution of ring channel to the effort of sealing washer, guarantees the whole circle leakproofness of sealing ring lower extreme.

4. The setting of fixed slot has realized the installation prepositioning of fixed limit, has also restricted the horizontal migration of inner cup down, avoids fixed limit to take place lateral shifting and separate with the fixed part when last inner cup is connected with inner cup down, guarantees to go up the inner cup and presss from both sides tight fixed part with inner cup down reliably.

5. The contact area of the lower inner cover and the fixed part is increased due to the arrangement of the pressing edge, the fixed edge is prevented from being too sharp and cutting the fixed part, and reliable sealing between the lower inner cover and the fixed part is facilitated.

Drawings

The present invention will be further explained with reference to the accompanying drawings:

FIG. 1 is a cross-sectional view of a liquid heater according to one embodiment of the present invention;

FIG. 2 is an exploded view of the inner lid of FIG. 1;

FIG. 3 is a partial cross-sectional view of a seal ring according to one embodiment;

FIG. 4 is a partial cross-sectional view of the inner lid covering the charging hole in the first embodiment;

FIG. 5 is a structural view of an upper inner lid in the first and third embodiments;

FIG. 6 is a partial cross-sectional view of the inner lid covering the material inlet of the second embodiment;

fig. 7 is a sectional view of the inner lid in the third embodiment.

Detailed Description

The first embodiment is as follows:

as shown in fig. 1 to 5, the embodiment provides a liquid heater, which includes a kettle body 1 and an outer cover 2 having a feeding hole 20, the outer cover 2 is provided with an inner cover 3 covering the feeding hole 20, the inner cover 3 includes an upper inner cover 31, a lower inner cover 32 and a sealing ring 33, the sealing ring 33 includes a fixing portion 331 and a sealing ring 332, the lower end of the sealing ring 332 is in sealing fit with the feeding hole 20, the upper inner cover 31 is provided with a mounting groove 312 for mounting the fixing portion 331, a limiting rib 313 is provided on the bottom wall of the mounting groove 312, the fixing portion 331 is pressed by the lower inner cover 32 on the limiting rib 313, and a pressure adjusting cavity 5 for increasing the sealing effect of the sealing ring 332 is formed by the top surface of the fixing portion.

Firstly, the fixing part 331 of the sealing ring 33 is pressed in the mounting groove 312 of the upper inner cover 31 by the lower inner cover 32 to realize the fixation of the sealing ring 33, the mounting groove 312 also provides prepositioning for the installation of the fixing part 331, the lower end of the sealing ring 332 is in sealing fit with the feed hole 20, the contact area between the peripheral side surface of the sealing ring 33 and the inner wall of the feed hole 20 is reduced, namely the friction resistance in the opening and closing process of the inner cover 3 is reduced, and a user can easily lift the inner cover 3 to realize the feeding; secondly, the groove bottom wall of the mounting groove 312 is provided with a limiting rib 313, so that the contact area between the groove bottom wall of the mounting groove 312 and the fixing part 331 is reduced, and therefore, when the upper inner cover 31 is connected with the lower inner cover 32, the fixing part 331 generates larger local deformation, and larger pretightening force is provided for the connection of the upper inner cover 31 and the lower inner cover 32; finally, the arrangement of the limiting rib 313 enables the top surface of the fixing portion 331 and the mounting groove 312 to form the pressure adjusting cavity 5, when the temperature of the inner cover 3 rises, the air pressure of the pressure adjusting cavity 5 also increases and downward pressure is formed on the fixing portion 331, the pressure drives the lower end of the sealing ring 332 to press the inner wall of the feeding hole 20, and the sealing effect of the sealing ring 332 is ensured.

The mounting groove 312 is an annular groove, and the limiting rib 313 extends along the radial direction and is connected to two side walls of the mounting groove 312. The mounting groove 312 is provided as an annular groove, so that the fixing portion 331 can be mounted with the mounting groove 312 without recognizing the direction, thereby improving the mounting efficiency and simplifying the structure of the upper inner cover 31 and the sealing ring 33; the limiting ribs 313 serve as two side walls of the reinforcing rib connecting installation groove 312, the strength of the installation groove 312 is improved, and the two side walls of the installation groove 312 are prevented from being damaged due to excessive force when the fixing portion 331 is pressed into the installation groove 312 by an operator.

In this embodiment, the limiting ribs 313 are uniformly distributed in the mounting groove 312, and the pressure adjusting cavity 5 is located between the adjacent limiting ribs 313. Therefore, the acting force of the gas in the pressure adjusting cavity 5 on the sealing ring 33 is uniformly distributed along the circumferential direction of the annular groove, and the sealing performance of the whole circle at the lower end of the sealing ring 332 is ensured.

Fixed part 331 is equipped with fixed slot 336 towards the side of inner cup 32 down, and lower inner cup 32 outward flange is equipped with the fixed limit 321 that turns over upwards, and supreme leanness is followed to fixed limit 321, and fixed limit 321 stretches into fixed slot 336 and compresses tightly fixed part 331 on spacing muscle 313. The fixing groove 336 is arranged to realize the mounting prepositioning of the fixing edge 321, limit the horizontal movement of the lower inner cover 32, prevent the fixing edge 321 from being separated from the fixing part 331 due to the transverse displacement when the upper inner cover 31 is connected with the lower inner cover 32, and ensure that the upper inner cover 31 and the lower inner cover 32 reliably clamp the fixing part 331.

One end of the fixing edge 321, which extends into the fixing groove 336, is provided with a pressing edge 322 which is turned outwards, and the fixing edge 321 is pressed against the bottom wall of the fixing groove 336 through the pressing edge 322. In this embodiment, the lower inner cover 32 is a metal inner cover, and the arrangement of the pressing edge 322 increases the contact area between the lower inner cover 32 and the fixing portion 331, so as to avoid the fixing edge 321 being too sharp to cut the fixing portion 331, and facilitate reliable sealing between the lower inner cover 32 and the fixing portion 331.

The hole wall of the charging hole 20 is provided with a step surface 201, the sealing ring 332 protrudes downwards from the lower inner cover 32, the lower end of the sealing ring 332 is provided with an annular sealing surface 330 positioned below the lower inner cover 32, and the sealing ring 332 is abutted against the step surface 201 through the annular sealing surface 330 for sealing fit. Therefore, the inner cover 3 presses the annular sealing surface 330 against the step surface 201 under the action of self gravity, which not only ensures the sealing effect, but also eliminates the friction resistance on the peripheral side surface of the inner cover 3 when the inner cover 3 is opened and closed, and the user can easily open and close the inner cover 3.

Of course, in this embodiment, the annular sealing surface 330 may be disposed on the outer side surface of the lower end of the sealing ring 332, the inner wall of the charging hole 20 is provided with a sealing matching surface with a diameter decreasing from top to bottom, and the annular sealing surface 330 abuts against the sealing matching surface of the charging hole 20, so that the fixing portion 331 drives the annular sealing surface to cling to the sealing matching surface when receiving the pressure in the pressure adjusting cavity 5.

The lower end of the seal ring 332 includes an inwardly turned bead 333, and an annular sealing surface 330 is provided on the outer side of the bead 333. The arrangement of the turned edge 333 increases the radial width of the annular sealing surface 330 under the condition that the sealing ring 332 has enough elasticity in the height direction, further improves the sealing effect of the sealing ring 332, and meanwhile, the turned edge 333 still has enough elasticity after abutting deformation, so that the annular sealing ring 33 always abuts against the inner wall of the feed hole 20 when the liquid heater slightly shakes; in addition, the rebound deformation of the bead 333 also reduces the machining accuracy requirements of the seal ring 33 and the charging hole 20.

In this embodiment, the diameter of the outer side surface of the sealing ring 332 decreases from top to bottom. The sealing ring 332 conveniently extends into the feed hole 20 to be in sealing fit with the feed hole 20. Of course, for making things convenient for opening and shutting of inner cup 3, also can with minimum interval S between the pore wall of lateral surface and charge door 20 of sealing ring 332 sets up to more than or equal to 1.5mm, and simultaneously, this interval also provides certain activity space for the expend with heat and contract with cold of sealing ring 332, avoids sealing ring 332 to extrude the pore wall of charge door 20 after the thermal expansion and influence opening of inner cup 3.

The sealing ring 33 also comprises a connecting part 334 extending along the radial direction of the kettle body 1, the upper end surface and the lower end surface of the connecting part 334 are respectively connected with the fixing part 331 and the sealing ring 332, the upper end surface of the connecting part 334 is provided with an annular upper sealing surface 335, the outer side of the mounting groove 312 of the upper inner cover 31 is provided with a supporting wall 311 which is in sealing fit with the upper sealing surface 335, and the phenomenon that a user is scalded due to the fact that a large amount of steam inside the inner cover 3 is sprayed out from the space between; meanwhile, in order to improve the integrity and the aesthetic degree of the peripheral side surface of the inner cover 3, the peripheral side surface of the supporting wall 311 is flush with the peripheral side surface of the connecting part 334 and is located outside the sealing ring 332, when the inner cover 3 covers the charging hole 20, the whole sealing ring 33 is hidden and shielded, and the integral aesthetic property of the liquid heater is improved.

Example two:

as shown in fig. 6, the embodiment provides a liquid heater, a tea basket 4 is arranged in the feed hole 20, a tea basket flange 41 is arranged at the top of the tea basket 4, a step surface 201 for supporting the tea basket flange 41 is arranged on the hole wall of the feed hole 20, the step surface 201 is in sealing fit with the tea basket flange 41, a sealing ring 332 protrudes downwards from the lower inner cover 32, an annular sealing surface 330 positioned below the lower inner cover 32 is arranged at the lower end of the sealing ring 332, and the sealing ring 332 is in sealing fit with the tea basket flange 41 by abutting against the annular sealing surface 330.

Tea basket 4 set up convenience of customers and place the material inside tea basket 4, avoid the material to pour out along with liquid through the hu zui, when user's needs with material and liquid separation, install tea basket 4 to the charge door 20 in, tea basket turn-ups 41 contradicts under the action of gravity and realizes sealedly in step face 201, the sealed face of annular 330 contradicts realizes sealing ring 332 and tea basket 4's sealing in tea basket turn-ups 41, when need not with material and liquid separation or when not needing the input material, take out tea basket 4 and fit the charge door 3 lid in charge door 20, the direct conflict of annular seal face 330 in step face 201, and is flexible to use, satisfies the user demand that the user is different.

Other contents not described in this embodiment may refer to embodiment one.

Example three:

as shown in fig. 5 and 7, the inner cover 3 further includes a handle 34, the upper inner cover 31 is provided with an upper mounting hole 314, the lower inner cover 32 is provided with a lower mounting hole, the screw 35 passes through the lower mounting hole and the upper mounting hole 314 to be connected to the handle 34, the upper inner cover 31 is provided with an annular rib 315 at the upper mounting hole 314, and the annular rib 315 abuts against the lower inner cover 32. The lower end face of the annular convex rib 315 is tightly attached to the lower inner cover 32 when the screw 35 is screwed down, so that pretightening force is provided for the installation of the screw 35, the sealing between the upper inner cover 31 and the lower inner cover 32 is realized, the phenomenon that a large amount of steam flows between the upper inner cover 31 and the lower inner cover 32 and is gathered into water drops is avoided, and the overall sealing performance and the internal cleaning of the inner cover 3 are guaranteed.

In this embodiment, the handle 34 is provided with a stud 341, the stud 341 extends into the upper mounting hole 314 to achieve the pre-positioning of the handle 34 and the upper inner lid 31, the side of the lower inner lid 32 facing the handle 34 is provided with a positioning protrusion 323 for positioning and mounting the lower inner lid 32, the positioning protrusion 323 extends into the inner side of the annular rib 315, and the lower mounting hole passes through the positioning protrusion 323. The lower inner cover 32 extends into the inner side of the annular rib 315 through the positioning protrusion 323, so that the lower mounting hole and the upper mounting hole 314 are aligned, and the installation of the screw 35 is facilitated.

Other contents not described in the present embodiment may refer to any of the above embodiments.

In addition to the preferred embodiments described above, other embodiments of the present invention are also possible, and those skilled in the art can make various changes and modifications according to the present invention without departing from the spirit of the present invention, which should fall within the scope of the present invention defined by the appended claims.

Claims

1. The utility model provides a liquid heater, includes the kettle body and has the enclosing cover of charge door, and the enclosing cover is equipped with the inner cup that covers the charge door, and the inner cup includes inner cup, lower inner cup and sealing washer, and the sealing washer include the fixed part and with the sealing ring, the lower extreme and the sealed cooperation of charge door of sealing ring, its characterized in that, going up the inner cup and being equipped with the mounting groove that supplies the fixed part installation, the tank bottom wall of mounting groove is equipped with spacing muscle, and lower inner cup compresses tightly the fixed part on spacing muscle, and the top surface of fixed part and the tank bottom wall of mounting groove form the pressure regulation chamber.

2. The liquid heater of claim 1, wherein the mounting groove is an annular groove, and the limiting rib extends along a radial direction and is connected to two side walls of the mounting groove.

3. The liquid heater of claim 2, wherein the limiting ribs are arranged in a plurality and uniformly distributed in the mounting groove, and the pressure regulating cavity is located between the adjacent limiting ribs.

4. The liquid heater of claim 1, wherein the fixing portion has a fixing groove facing the side of the lower inner lid, the outer edge of the lower inner lid has a fixing edge turned upward, the fixing edge is inclined outward from bottom to top, and the fixing edge extends into the fixing groove to press the fixing portion against the limiting rib.

5. The liquid heater of claim 4, wherein the end of the fixing edge extending into the fixing groove is provided with a pressing edge folded outwards, and the fixing edge is pressed against the groove bottom wall of the fixing groove through the pressing edge.

6. The liquid heater as claimed in any one of claims 1 to 5, wherein the wall of the charging hole is provided with a step surface, the sealing ring protrudes downwards from the lower inner cover, the lower end of the sealing ring is provided with an annular sealing surface positioned below the lower inner cover, and the sealing ring is in sealing fit with the step surface through abutting of the annular sealing surface;

7. The liquid heater of claim 6, wherein the lower end of the sealing ring includes an inwardly curled bead, the annular sealing surface being provided on an outer side of the bead; or the diameter of the outer side surface of the sealing ring is reduced from top to bottom.

8. The liquid heater as claimed in any one of claims 1 to 5, wherein the sealing ring further comprises a connecting portion extending in a radial direction of the kettle body, an upper end surface and a lower end surface of the connecting portion are respectively connected with the fixing portion and the sealing ring, the upper end surface of the connecting portion is provided with an annular upper sealing surface, the upper inner cover is provided with a supporting wall which is in sealing fit with the upper sealing surface outside the mounting groove, and the peripheral side surface of the supporting wall is flush with the peripheral side surface of the connecting portion and is located outside the sealing ring.

9. The liquid heater of any one of claims 1 to 5, wherein the inner cover further comprises a handle, the upper inner cover is provided with an upper mounting hole, the lower inner cover is provided with a lower mounting hole, a screw is connected to the handle through the lower mounting hole and the upper mounting hole, the upper inner cover is provided with an annular rib at the upper mounting hole, and the annular rib abuts against the lower inner cover.

10. The liquid heater of claim 9, wherein the handle has a stud extending into the upper mounting hole, the side of the lower inner lid facing the handle has a positioning protrusion for positioning the lower inner lid, the positioning protrusion extends into the inner side of the annular rib, and the lower mounting hole passes through the positioning protrusion.