CN210204296U

CN210204296U - Coffee pot

Info

Publication number: CN210204296U
Application number: CN201921275842.2U
Authority: CN
Inventors: Zhiguo Ying; 应治国; Tao Liu; 刘涛; Bo Peng; 彭波
Original assignee: Zhejiang Jin Tao Electric Applicance Co Ltd
Current assignee: Zhejiang Jin Tao Electric Applicance Co Ltd
Priority date: 2019-08-07
Filing date: 2019-08-07
Publication date: 2020-03-31
Anticipated expiration: 2029-08-07

Abstract

An embodiment of the utility model provides a coffee pot, it includes: the kettle comprises a kettle body and a ferromagnetic kettle bottom, wherein a kettle cavity is formed inside the kettle body, and an opening communicated with the kettle cavity is formed in the bottom of the kettle body; the kettle bottom comprises a blocking part for blocking the opening and a wrapping part formed by extending the blocking part to the kettle body, the wrapping part wraps the outer wall of the bottom of the kettle body and is clamped with the kettle body, and the expansion coefficient of the kettle body is greater than that of the kettle bottom at the temperature of 0-100 ℃. The utility model discloses coffee pot adopts ferromagnetic material to make at the bottom of the kettle, makes this coffee pot be applicable to the electromagnetism stove heating, wraps up the bottom outer wall of the kettle body at the bottom of the kettle, when boiling coffee, the kettle bottom and the kettle body by heating temperature rising, because the expansion coefficient of the kettle body is greater than the expansion coefficient at the bottom of the kettle, can tightly wrap up the kettle body at the bottom of the kettle, can not throw off at the bottom of the kettle body and the kettle under high pressure, leakproofness and resistance to pressure are better, and simple structure, and manufacturing cost is lower.

Description

Coffee pot

Technical Field

The embodiment of the utility model provides a relate to coffee preparation technical field, especially relate to a coffee pot.

Background

The traditional mocha coffee pot, also called steam pressure type coffee pot, comprises an upper pot and a lower pot body, wherein the upper pot and the lower pot body are connected through internal threads and external threads.

The mocha coffee pot body can be used only by heating the bottom, and is generally made of aluminum alloy or stainless steel. The heating mode can be divided into two types: one is an electric mocha coffee maker, i.e. an electric heating tube is arranged at the bottom and is heated by electricity, but the price is relatively high because a plurality of electric elements such as the electric heating tube, a temperature controller, a power line and the like are required to be added. The other type is a common mocha coffee pot which is directly heated by open fire or an electric stove, is popular with common families due to low price, and occupies most of the mocha coffee pot market share. With the popularization of induction cookers, more and more users want to use mocha coffee pots on induction cookers.

The aluminum alloy material can not be heated by an induction cooker, and the stainless steel material containing magnetism can be used for heating by the induction cooker. Therefore, for the common mocha coffee pot made of stainless steel materials, the pot body can be heated by fire or an induction cooker, the application range of the mocha coffee pot is expanded due to the characteristic, and the mocha coffee pot is popular in the market. However, the cost of the mocha coffee pot body made of stainless steel materials is far higher than that of the aluminum alloy materials. In addition, the mocha coffee pot needs to bear the pressure in the pot, the screw thread combination of the upper pot and the lower pot has higher requirements, the stainless steel material is not easy to integrally process the screw thread, the stainless steel pot body is manufactured and needs to be decomposed into a screw thread component and a container to be separately processed, and then the screw thread component and the container are connected into a whole by welding, so that the process requirements and the processing cost are high. For the kettle body made of the aluminum alloy material, various mechanical cutting processes are only needed after the kettle body is formed by die casting, the processing is convenient, and the cost is low. In addition, due to the characteristic that the stainless steel material is difficult to process, the appearance of the kettle body is not rich in appearance modeling change of an aluminum alloy material kettle body.

The electromagnetic oven is a device for heating by utilizing the electromagnetic induction principle, only the part of the bottom of the kettle body, which is in contact with the electromagnetic oven, is required to be heated by electromagnetic induction, and the whole kettle body is not required to be made of stainless steel materials. Therefore, in consideration of cost, the method for manufacturing the Mocha coffee pot body by combining the aluminum alloy pot body and the stainless steel bottom shell is a good compromise method, not only can the characteristics of easy processing and variable shape of the aluminum alloy pot body be kept, but also the advantages that the stainless steel material can be heated by an induction cooker are combined, and the cost is between that of full aluminum alloy and full stainless steel material.

The simplest method of the two is to directly place a stainless steel chassis containing magnetism in a groove at the bottom of the kettle body, rotationally roll the edge of the lower kettle of the aluminum alloy, and embed and wrap the stainless steel disc at the bottom of the kettle body through the extension deformation of the aluminum alloy material. The method has simple process and lowest cost, but the direct connection and fixation of the two materials with different properties has great use risk. It is well known that materials expand with heat and contract with cold. In the range of 0-100 deg.C, the expansion coefficient of aluminium material is far greater than that of stainless steel. If adopt above-mentioned aluminum product material package stainless steel material's method, under the condition of being heated, the aluminium material inflation is more, and the stainless steel material inflation is less, will produce the clearance easily between the two, and difficult the avoiding has water to go into and corrodes the aluminium material, under the long-term service condition, can lead to stainless steel drain pan and the pine of kettle body to take off to lead to serious potential safety hazard easily. Different from the common heating pot body, the mocha coffee pot body needs to bear higher steam pressure in the process of boiling coffee by the mocha coffee pot. Under the working condition of normal coffee making, the pressure in the coffee pot can be leaked out through a safety valve arranged on the pot body when the pressure in the coffee pot is overhigh. However, in consideration of the extreme situation and the failure of the safety valve, if the bottom case is not tightly combined with the kettle body, the whole bottom case is possibly separated from the kettle body in the cooking process, a light person can cause water leakage, and the whole kettle can be collapsed in a serious situation, boiled water splashes, and serious potential safety hazards exist. Therefore, the method is rarely adopted for processing and production when the mocha coffee pot is processed in the industry at present.

The utility model with the patent number of ZL200720001176.4 provides a double-bottom process, which comprises the steps of firstly processing a groove on the edge of the bottom surface of a kettle body, then putting a silica gel sealing ring in the groove, and then die-casting an aluminum bottom. And finally pressing the iron sheet. The process is complex, the die-casting temperature is very high, the silica gel ring can be melted, and the combination of the aluminum bottom and the kettle body is difficult to achieve the sealing effect.

The utility model with the publication number of CN201441195U discloses a coffee pot suitable for an electromagnetic oven, which is improved to a certain extent. The kettle bottom directly adopts an aluminum and stainless steel composite material bottom sheet. The aluminum sheet at the edge of the bottom sheet and the aluminum kettle body are combined and fixed by spinning deformation. However, the process requires high-frequency compounding of the aluminum plate and the stainless steel plate, and the processing cost is relatively high. And the aluminum materials are extruded into a whole only by pressure, so the problem of infirm bearing the pressure in the high kettle is also existed.

SUMMERY OF THE UTILITY MODEL

In view of the above problems in the prior art, an embodiment of the present invention provides a coffee pot, which has good sealing performance and pressure resistance, simple structure and low production cost.

In order to solve the above problem, the embodiment of the present invention provides a technical solution:

a coffee maker, comprising:

the kettle body is internally provided with a kettle cavity, and the bottom of the kettle body is provided with an opening communicated with the kettle cavity;

the ferromagnetic kettle bottom comprises a blocking part for blocking the opening and a wrapping part formed by extending the blocking part to the kettle body, the wrapping part wraps the outer wall of the bottom of the kettle body and is clamped with the kettle body, and the expansion coefficient of the kettle body is greater than that of the kettle bottom at the temperature of 0-100 ℃.

In some embodiments, a clamping groove is formed in the outer wall of the kettle body, and a protruding portion protruding inwards and embedded into the clamping groove is formed in the wrapping portion.

In some embodiments, the clamping groove is a first annular groove arranged along the circumferential direction of the kettle body, and the protrusion is an annular convex rib formed by spinning and rolling the wrapping part.

In some embodiments, the outer wall of the bottom of the kettle body is inwardly contracted to form a step part, and the wrapping part wraps the step part, so that the outer surface of the kettle body is flush with the outer surface of the wrapping part.

In some embodiments, a sealing ring is arranged between the kettle body and the kettle bottom.

In some embodiments, a second annular groove is formed on the bottom end surface of the kettle body, and the sealing ring is embedded in the second annular groove.

In some embodiments, the kettle body is an aluminum alloy kettle body; and/or the kettle bottom is a stainless steel kettle bottom.

In some embodiments, a groove is formed in the middle of the blocking portion.

In some embodiments, a pressure relief valve is provided on the kettle body.

In some embodiments, the pot opening at the top of the pot body is provided with an external thread structure for connecting with the pot cover.

Compared with the prior art, the utility model discloses beneficial effect lies in:

the utility model discloses coffee pot adopts ferromagnetic material to make at the bottom of the kettle, makes this coffee pot be applicable to the electromagnetism stove heating, wraps up the bottom outer wall of the kettle body at the bottom of the kettle, when boiling coffee, the kettle bottom and the kettle body by heating temperature rising, because the expansion coefficient of the kettle body is greater than the expansion coefficient at the bottom of the kettle, can tightly wrap up the kettle body at the bottom of the kettle, can not throw off at the bottom of the kettle body and the kettle under high pressure, leakproofness and resistance to pressure are better, and simple structure, and manufacturing cost is lower.

Drawings

FIG. 1 is a schematic sectional view of a coffee pot according to an embodiment of the present invention;

FIG. 2 is an enlarged partial view of portion A of the coffee maker of FIG. 1;

FIG. 3 is a schematic perspective view of a coffee pot according to an embodiment of the present invention;

fig. 4 is a schematic structural view of a bottom of a coffee pot according to an embodiment of the present invention.

Description of reference numerals:

10-a pot body; 11-pot cavity; 12-an opening; 13-a first annular groove; 14-a step portion; 15-a second annular groove; 16-pot mouth; 17-external thread structure; 18-a pressure relief valve;

20-pot bottom; 21-blocking part; 22-a wrapping section; 23-an annular rib; 24-a groove; 25-sealing ring.

Detailed Description

For better understanding of the technical solutions of the embodiments of the present invention, the present invention will be described in detail with reference to the accompanying drawings and the detailed description.

Referring to fig. 1 to 3, an embodiment of the present invention provides a coffee maker, including: the kettle comprises a kettle body 10 and a ferromagnetic kettle bottom 20, wherein a kettle cavity 11 is formed inside the kettle body 10, an opening 12 communicated with the kettle cavity 11 is formed in the bottom of the kettle body 10, the kettle bottom 20 comprises a blocking part 21 for blocking the opening 12 and a wrapping part 22 formed by extending the blocking part 21 to the kettle body 10, the wrapping part 22 wraps the outer wall of the bottom of the kettle body 10 and is clamped with the kettle body 10, and the expansion coefficient of the kettle body 10 is greater than that of the kettle bottom 20 at 0-100 ℃.

Adopt the coffee pot of above-mentioned structure, 20 at the bottom of the kettle adopts ferromagnetic material to make, make this coffee pot be applicable to the electromagnetism stove heating, 20 parcel at the bottom of the kettle covers the bottom outer wall of the kettle body 10, when cooking coffee, 20 at the bottom of the kettle and the kettle body 10 are by the heating temperature rise, and produce higher kettle internal steam pressure, because the expansion coefficient of the kettle body 10 is greater than the expansion coefficient at the bottom of the kettle 20, so the deformation volume of the kettle body 10 is great, 20 can tightly wrap up the kettle body 10 at the bottom of the kettle, sealed effectual, 20 can not throw off at the bottom of the kettle body 10 and the kettle, leakproofness and resistance to pressure are better, and simple structure. Meanwhile, as the kettle bottom 20 made of ferromagnetic material wraps the bottom and the edge of the whole kettle body 10, the area of electromagnetic induction heating is increased, and the heating efficiency is higher. In addition, only the kettle bottom 20 is made of ferromagnetic materials, so that the kettle body 10 can be made of other relatively cheap materials, and the production cost is favorably reduced.

As shown in fig. 2, the connection structure between the kettle body 10 and the kettle bottom 20 can have various forms, in some embodiments, a clamping groove can be formed on the outer wall of the kettle body 10, and an inward protruding protrusion is formed on the wrapping portion 22, so that the protrusion is embedded into the clamping groove, the kettle body 10 and the kettle bottom 20 are clamped, and the clamping groove and the protrusion are matched with each other, so that the structure is simple, and the installation and the removal are convenient. In particular, the groove can be a first annular groove 13 arranged along the circumference of the can body 10, and the protrusion can be an annular rib 23 arranged on the wrapping portion 22. The kettle body 10 and the kettle bottom 20 are connected through the matching of the first annular groove 13 and the annular convex edge 23, and the connection is firm, the reliability is high, the safety is good, and high pressure in the kettle can be borne.

Taking the stainless steel kettle bottom as an example of the kettle bottom 20, the kettle bottom 20 can be formed by stamping a whole stainless steel plate, the kettle body 10 can be firstly inverted during assembly, the kettle bottom 20 is buckled, then the spinning rib rolling equipment is utilized to perform the spinning rib rolling processing on the wrapping part 22 at the position opposite to the first annular groove 13, the stainless steel plate is deformed under pressure, and the annular convex edge 23 embedded into the first annular groove 13 is formed, so that the production and the processing are convenient. In a preferred embodiment, the kettle body 10 can be made of aluminum alloy, the expansion coefficient of the aluminum alloy is far larger than that of the stainless steel in the range of 0-100 ℃, the cost of the aluminum alloy is relatively low, and the aluminum alloy is easy to process, so that the appearance of the kettle body 10 is richer.

In some embodiments, the outer wall of the bottom of the pot body 10 can be shrunk inwards to form a step part 14, the wrapping part 22 can wrap the step part 14, so that the outer surface of the pot body 10 and the outer surface of the wrapping part 22 are flush, thus the coffee pot can form an integral appearance, and the edge of the wrapping part 22 is hidden in the step part 14, so that the appearance of the coffee pot is neat and beautiful. In a specific implementation, the first annular groove 13 may be formed on the step portion 14.

In order to improve the sealing performance between the kettle body 10 and the kettle bottom 20, a sealing ring 25 can be arranged between the kettle body 10 and the kettle bottom 20, and the sealing ring 25 can be a food-grade silica gel sealing ring 25. In a preferred embodiment, a second annular groove 15 can be made on the bottom face of the can 10, and the seal 25 can be inserted, in whole or in part, in this second annular groove 15, with the bottom of the seal 25 resting against the stop 21. When the kettle is installed, after the kettle body 10 is inverted, the sealing ring 25 is firstly placed in the second annular groove 15, then the kettle bottom 20 is covered on the kettle body 10, the sealing between the kettle bottom 20 and the kettle body 10 can be realized, the processing is convenient, and the sealing performance is good.

In some embodiments, as shown in fig. 4, a groove 24 may be formed in the middle of the blocking portion 21, so that the kettle bottom 20 does not bulge outward under the action of the pressure in the kettle during heating, and the kettle bottom 20 is prevented from being deformed due to the pressure in the kettle. Specifically, the groove 24 may be a circular groove provided in the blocking portion 21, or may be an annular groove or a groove with other shapes, as long as the kettle is prevented from deforming under the action of the pressure in the kettle.

In some embodiments, the kettle body 10 may be provided with a pressure relief valve 18, so that when the pressure in the kettle is too high, the pressure can be relieved through the pressure relief valve 18, thereby avoiding potential safety hazards and avoiding deformation of the kettle body 10 or the kettle bottom 20 caused by the pressure in the kettle being too high.

In some embodiments, the pot opening 16 at the top of the pot body 10 is provided with an external thread structure 17 for connecting with a pot lid. The pot lid accessible is connected on the kettle body 10 to this external screw thread structure 17, and pot lid and kettle body 10 firm in connection like this, and the leakproofness between pot lid and the kettle body 10 is better, makes to be kept with certain pressure in this coffee pot, is of value to improving the effect of infusing of coffee, can also avoid heating the in-process, and the pot lid pops open under the pressure effect.

The utility model discloses coffee pot is applicable to the electromagnetism stove heating, and leakproofness and resistance to pressure are better, simple structure, and production and processing is convenient, and manufacturing cost is lower.

The above embodiments are only exemplary embodiments of the present invention, and are not intended to limit the present invention, and the protection scope of the present invention is defined by the claims. Various modifications and equivalents of the invention can be made by those skilled in the art within the spirit and scope of the invention, and such modifications and equivalents should also be considered as falling within the scope of the invention.

Claims

1. A coffee maker, comprising:

2. The coffee pot as claimed in claim 1, wherein a slot is provided on the outer wall of the pot body, and a protrusion protruding inward and engaging with the slot is provided on the wrapping portion.

3. The coffee pot of claim 2, wherein the engaging groove is a first annular groove arranged along the circumferential direction of the pot body, and the protrusion is an annular rib formed by spinning and rolling the wrapping portion.

4. A coffee pot as claimed in claim 1, in which the external wall of the bottom of the pot body is inwardly tapered to form a step, and the wrapper wraps around the step so that the external surface of the pot body is flush with the external surface of the wrapper.

5. A coffee maker as claimed in claim 1, wherein a sealing ring is provided between the body and the base.

6. A coffee pot as claimed in claim 5, characterized in that a second annular groove is provided on the bottom end face of the pot body, and the sealing ring is embedded in the second annular groove.

7. A coffee pot as claimed in claim 1, in which the pot body is an aluminium alloy pot body; and/or the kettle bottom is a stainless steel kettle bottom.

8. A coffee pot as claimed in claim 1, wherein the blocking portion is provided with a recess in the middle.

9. A coffee maker as claimed in claim 1, wherein a pressure relief valve is provided on the body.

10. The coffee pot as claimed in claim 1, wherein the pot opening at the top of the pot body is provided with an external thread structure for connecting with the pot lid.