CN2930545Y - Electric kettle with improved seal structure - Google Patents

Abstract

An electric kettle with improved sealing structure, including a ring-shaped kettle wall and a heating device. The heating device is arranged at the bottom of the kettle wall. The top surface and the kettle wall together form a space for holding water. A positioning surface is provided at the position, and a sealing ring is interposed between the positioning surface and the edge of the top surface of the heating device in the vertical direction. A snap ring is provided at the edge of the bottom surface of the heating device to tighten it upwards. The outer circumference of the snap ring There are several buckles on the surface, and corresponding positions on the inner side of the kettle wall are provided with slots that cooperate with each buckle so that the snap ring and the kettle wall are relatively fixed. The sealing structure between the kettle wall and the heating device of the electric kettle is stable, water leakage is not easy to occur, and the assembly is easy, and the production cost is low.

Description

Electric kettle with improved sealing structure

technical field

The utility model relates to the structure of an electric kettle, in particular to an electric kettle with an improved sealing structure.

Background technique

Electric kettle is one of requisite utensils in people's daily life, is used for heating water, can be used as the container of water again simultaneously, has the feature of easy to use. The bottom of the electric kettle is equipped with an electric heating device. Earlier, the heating device was an electric heating tube that protruded upwards from the bottom of the container to heat the water in the container. If exposed to water, it is easy to get rusted due to corrosion, and finally it is damaged and cannot be used, and it affects hygiene.

Therefore, the designer in the industry has designed the electric heating device that heating surface is planar, and this electric kettle has two kinds of basic structures. One is a metal container that is integrally formed with the water container, and the electric heating device is installed under the bottom. When heating, the entire metal container will be heated. A plastic shell must be covered outside the metal container to ensure safe use, and There must be a thermal insulation layer between the plastic shell and the metal container, so the production process is troublesome and the cost is high. The other is to hoist the electric heating device on the bottom of the plastic container, and its planar heating surface forms the bottom of the heating container, which is directly contacted with water to heat it.

The sealing structure between the heating device and the inner wall of the kettle body is a key factor in the performance of the electric kettle. The existing sealing structure is as follows: a protruding ring is provided at an appropriate position on the inner wall of the kettle body, a sealing ring is provided between the top surface of the periphery of the heating device and the bottom surface of the protruding ring, and a compressible spring device is provided in the axial direction , the spring device exerts a force in the axial direction to compress the sealing ring from bottom to top to achieve sealing. In the process of boiling water, the spring may be compressed by the gravity of the water, and the seal may not be tight enough to cause water leakage, and the assembly is difficult and costly.

Another sealing structure is: the sealing ring is located between the inner wall of the pot body and the outer peripheral surface of the heating device, and the outer peripheral surface of the sealing ring forms two layers of convex ring ribs. When assembling, use this rib to conflict with the inner wall of the pot body To produce the same direction flanging to achieve the effect of sealing, several longitudinal ribs are arranged on the inner wall of the pot body. Tighten it so that it is fixed in the axial direction, and the support ring is engaged with the inner wall of the kettle body to achieve the purpose of support and fixation. In the assembly process of this kind of sealing structure, the directions of the flanges of the sealing ribs on the sealing ring are prone to be different, forming waves on the circumference, resulting in water leakage, and its assembly is also difficult.

Utility model content

The utility model provides an electric kettle with an improved sealing structure. The main purpose of the utility model is to overcome the shortcomings of the existing electric kettles such as inconvenient assembly and easy water leakage due to unreasonable design of the sealing structure.

The utility model adopts the following technical scheme: an electric kettle with improved sealing structure, including an annular kettle wall and a heating device, the heating device is arranged at the bottom of the kettle wall, and its top surface and the kettle wall together form a space for holding water A downward facing positioning surface is provided on the inner surface of the pot wall near the bottom, a sealing ring is vertically sandwiched between the positioning surface and the edge of the top surface of the heating device, and a sealing ring is provided on the edge of the bottom surface of the heating device to push it upwards. The tight snap ring is provided with several buckles on the outer peripheral surface of the snap ring, and the corresponding position on the inner surface of the kettle wall is provided with a draw-in groove that cooperates with each buckle so that the snap ring and the kettle wall are relatively fixed.

In the electric kettle with improved sealing structure, the top surface of the heating device forms a convex ring inside the sealing ring, and the sealing ring is sandwiched between the outer peripheral surface of the convex ring and the inner surface of the kettle wall in the horizontal direction.

In the aforementioned electric kettle with improved sealing structure, the snap ring has a fracture, and among the snaps on the snap ring, half of one snap is formed on one side of the fracture, and the other half is formed on the other side of the fracture.

In the aforementioned electric kettle with improved sealing structure, the top edge and the bottom edge of the cross section of the sealing ring are zigzag.

In the aforementioned electric kettle with improved sealing structure, a decorative sleeve is provided outside the bottom of the kettle wall, and the decorative sleeve is clamped on the outside of the bottom of the kettle wall. The heating device is covered inside it.

The positioning surface of the aforementioned electric kettle with improved sealing structure is formed by the bottom surface of a convex ring formed on the inner surface of the shell wall.

The positioning surface of the aforementioned electric kettle with improved sealing structure is composed of a stepped surface formed on the inner side of the kettle wall near the bottom.

From the above description of the structure of the utility model, it can be seen that compared with the prior art, the utility model has the following advantages: one, the top surface, bottom surface, outer surface and inner surface of the sealing ring are respectively connected with the positioning surface and the heating device on the inner side of the kettle wall. A seal is formed between the edge position of the top surface, the inner surface of the pot wall, and the outer surface of the convex ring on the top surface of the heating device, and the snap ring is tightened from bottom to top, and the top surface of the sealing ring is completely fitted with the positioning surface in the entire circumferential direction. , can achieve a good sealing effect, which is much better than the previous sealing effect through the flange of the sealing ring; second, the positioning is realized by the buckle on the outer side of the snap ring and the slot on the inner side of the pot wall, and its structural stability is better than that of In the past, the spring device was used to tighten the effect; 3. When assembling, first put the sealing ring on the convex ring of the heating device, so that the lower end surface is close to the edge of the top surface of the heating device, and then place the heating device from the bottom of the kettle wall. Insert it until it touches the positioning surface on the inner side of the kettle wall, make the upper end surface of the sealing ring close to the positioning surface, and snap the buckle on the snap ring into the slot of the kettle wall, so that the upper end surface is close to the bottom surface of the heating device The edge position plays the role of pressing upwards. It can be seen that its assembly is very easy to realize; Fourth, its structure is extremely simple, which is easy to realize in production and will not increase production costs.

Description of drawings

Fig. 1 is a schematic diagram of the external structure of the utility model;

Fig. 2 is a three-dimensional exploded view of Embodiment 1 of the utility model;

Fig. 3 is a cross-sectional view of the utility model sealing ring;

Figure 4 is a top view of the utility model snap ring;

Fig. 5 is a partial enlarged view of place A in Fig. 4;

Fig. 6 is a partial cross-sectional view of Embodiment 1 of the present invention, showing the structure of its sealing device;

Fig. 7 is a partial cross-sectional view of the third embodiment of the utility model, showing the structure of its sealing device.

specific embodiment

A specific embodiment 1 of the present utility model will be described below with reference to FIGS. 1 to 6 .

Referring to Fig. 1, viewed from the outside, the electric kettle includes a cylindrical kettle wall 1, a decorative cover 2 sleeved outside the bottom of the kettle wall 1 and a base 9 connected to the bottom of the decorative cover 2, the kettle wall 1 A spout 11 is arranged on the top edge, a handle 12 is arranged on the outer wall opposite to the spout 1 , and a lid 8 is arranged on the top of the kettle wall 1 .

Referring to FIG. 2 , the kettle wall 1 is transparent up and down, and a heating device 3 is provided at the bottom of the kettle wall 1 . The top surface of the heating device 3 and the kettle wall 1 together form a space for holding water. The inner surface of the kettle wall 1 near the bottom is provided with a positioning convex ring 7, the bottom surface of the positioning convex ring 7 forms a positioning surface, and a sealing ring 4 is interposed between the edge position 31 of the top surface of the heating device 3 in the vertical direction. The edge of the bottom surface of the heating device 3 is provided with a clasp 5 for tightening it upwards. The outer peripheral surface of the clasp 5 is provided with six clasps 51, and the inner surface of the kettle wall 1 is provided with corresponding clasps 51 to cooperate with each other. The draw-in groove 10 that makes snap ring 5 and kettle wall 1 relatively fixed. Referring to FIG. 6 , the top surface of the snap ring 5 is a slope inclined inward and downward, and the bottom surface is a plane. Referring to Fig. 2 and Fig. 6 at the same time, a protruding ring 32 is formed on the inner side of the sealing ring 4 on the top surface of the heating device 3, and the outer peripheral surface of the protruding ring 32 and the inner surface of the kettle wall 1 horizontally sandwich the sealing ring 4 therebetween.

The decorative cover 2 is clamped on the outer side of the bottom of the pot wall 1, and the bottom of the decorative cover 2 is fixed with a bottom plate 6 by screw locking, and the bottom plate 6 and the decorative cover 2 cover the heating device 3 inside it. The heating device 3 is an existing mature technology, and will not be described in detail here.

Referring to Fig. 4 and Fig. 5, the snap ring 5 has a fracture 50, and among the six buckles 51 on the snap ring 5, half of a buckle 51 is formed on one side of the fracture 50, and the other half forms the fracture On the other side of 50, this structure facilitates assembly. Referring to Fig. 3, the top edge and the bottom edge of the cross section of the sealing ring 4 are zigzag, that is, the top surface and the bottom end surface of the sealing ring 4 are provided with a plurality of concentric annular grooves, this structure is conducive to enhancing the sealing Ring sealing effect.

When assembling, first put the sealing ring 4 on the convex ring 32 of the heating device 3 so that the lower end surface is close to the edge position 31 of the top surface of the heating device 3, and then insert the heating device 3 from the bottom of the kettle wall 1 until the top Lean against the positioning convex ring 7 on the inner side of the kettle wall 1, make the upper end surface of the sealing ring 4 close to the positioning surface formed by the bottom surface of the positioning convex ring 7, and finally snap the buckles 51 on the snap ring 5 into the kettle wall one by one. 1, the upper end surface is close to the edge position of the bottom surface of the heating device 3 to play the role of pressing upward.

Specific embodiment two of the present utility model, referring to Fig. 7, its main structure and principle are the same as embodiment one, the main difference is that the positioning surface which plays a main sealing role is not formed by the bottom surface of the convex ring, but formed by a bottom surface of the pot The inner surface of the wall is formed by a stepped surface near the bottom.

The above are only two specific embodiments of the present utility model, but the design concept of the present utility model is not limited thereto, and any insubstantial changes made to the present utility model by using this concept should belong to violations of the protection scope of the present utility model Behavior.

Claims (7)

1. An electric kettle with improved sealing structure, including a ring-shaped kettle wall and a heating device. The heating device is located at the bottom of the kettle wall, and its top surface and the kettle wall together form a space for holding water. It is characterized in that: the A positioning surface facing downward is provided on the inner surface of the pot wall near the bottom, and a sealing ring is sandwiched between the positioning surface and the edge of the top surface of the heating device in the vertical direction, and a sealing ring is provided at the edge of the bottom surface of the heating device to tighten it upward. The outer peripheral surface of the snap ring is provided with several buckles, and the inner surface of the kettle wall is provided with a corresponding position on the inner surface of the kettle wall to cooperate with each buckle so that the snap ring and the kettle wall are relatively fixed. 2. The electric kettle with improved sealing structure according to claim 1, characterized in that: the top surface of the heating device forms a convex ring inside the sealing ring, and the outer peripheral surface of the convex ring and the inner surface of the kettle wall are aligned horizontally. A sealing ring is interposed therebetween. 3. The electric kettle with improved sealing structure as claimed in claim 1, characterized in that: said snap ring has a fracture, and half of one of the snaps on said snap ring is formed in the fracture. One side, the other half forms the other side of the fracture. 4. The electric kettle with improved sealing structure according to claim 1, characterized in that: the top edge and the bottom edge of the cross section of the sealing ring are zigzag. 5. The electric kettle with improved sealing structure according to claim 1, characterized in that: there is a decorative sleeve on the outside of the bottom of the kettle wall, the decorative sleeve is clamped on the outside of the bottom of the kettle wall, and the bottom of the decorative sleeve is locked by screws A base plate is fixed, and the base plate and the decorative cover cover the heating device inside. 6. The electric kettle with improved sealing structure as claimed in claim 1, wherein the positioning surface is formed by a bottom surface of a convex ring formed on the inner side of the shell wall. 7. The electric kettle with improved sealing structure as claimed in claim 1, wherein the positioning surface is formed by a stepped surface formed on the inner side of the kettle wall near the bottom.

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