CN106419584B

CN106419584B - Water inlet heating structure of coffee machine

Info

Publication number: CN106419584B
Application number: CN201610889496.1A
Authority: CN
Inventors: 施军达; 柳树阔; 施钟毓
Original assignee: Individual
Current assignee: Individual
Priority date: 2016-10-12
Filing date: 2016-10-12
Publication date: 2022-06-21
Anticipated expiration: 2036-10-12
Also published as: CN106419584A

Abstract

The invention discloses a water inlet heating structure of a coffee machine, which comprises a water tank and a water supply pipe, wherein the water tank and the water supply pipe are arranged in a shell, a water inlet of the water supply pipe is connected with a water outlet connector on a bottom plate of the water tank, a water outlet of the water supply pipe is higher than the water inlet, and a section of heating water pipe is arranged on the water supply pipe; a one-way valve is arranged in the water outlet joint and comprises a support body at the upper part, a connecting rod at the middle part and a sealing body at the lower part, the support body and the sealing body are respectively connected to two ends of the connecting rod, and the support body is of a strip-shaped structure; when the one-way valve is opened, the support body is in support fit with a support edge formed by inward extension of the water outlet joint on the bottom plate, and when the one-way valve is closed, the sealing body is in sealing fit with the water passing hole in the water outlet joint. The invention has the advantages that: the automatic water inlet device has the advantages of simple and reasonable structure, convenience in installation and capability of realizing automatic water inlet by adopting a mechanical control structure.

Description

Water inlet heating structure of coffee machine

Technical Field

The invention relates to the technical field of coffee machine manufacturing, in particular to a water inlet heating structure of a coffee machine.

Background

With the acceleration of work pace and the improvement of living standard of people, people usually can make a cup of coffee to refresh and restore consciousness in order to relieve working pressure and eliminate fatigue. Coffee has effects in promoting metabolism, activating collaterals and digestive organs, resisting oxidation, protecting heart, strengthening tendons and bones, benefiting waist and knee joint, stimulating appetite, removing fat, resolving food stagnation, promoting resuscitation, removing dampness, promoting blood circulation, dispelling blood stasis, calming endogenous wind, and relieving spasm. Research shows that drinking 100-200 mg caffeine daily is enough to refresh and is harmless to the body.

At present, the coffee machine as a household appliance gradually enters modern common families, so that people can brew coffee more conveniently, and the coffee is uniformly dissolved due to the fact that the coffee machine directly uses boiling water to brew coffee, so that the coffee is pure in taste and better in mouthfeel. However, the control of the heating water amount in the coffee machine is always a difficult technical problem to solve, the water amount is small, and the brewed coffee is too thick to influence the taste; with more water, the water boils slower and consumes more energy.

The existing coffee machine adopts the cooperation of an electromagnetic valve and a water level sensor to control the heating water quantity, but the existing coffee machine needs signal transmission to control, has a complex structure and high manufacturing cost; after the sensor is used for a long time, the sensitivity is deteriorated, so that the overall performance of the coffee machine is reduced, and the maintenance cost is high; therefore, the structure thereof is desired to be further improved.

Disclosure of Invention

The invention aims to solve the technical problem of providing a water inlet heating structure of a coffee machine, which has simple and reasonable structure and convenient installation and can realize automatic water inlet aiming at the current situation of the prior art.

The technical scheme adopted by the invention for solving the technical problems is as follows:

a water inlet heating structure of a coffee machine comprises a water tank and a water supply pipe which are arranged in a shell, wherein a water inlet of the water supply pipe is connected with a water outlet joint on a bottom plate of the water tank, a water outlet of the water supply pipe is higher than the water inlet, and a section of heating water pipe is arranged on the water supply pipe; a one-way valve is arranged in the water outlet joint and comprises a support body at the upper part, a connecting rod at the middle part and a sealing body at the lower part, the support body and the sealing body are respectively connected to two ends of the connecting rod, and the support body is of a strip-shaped structure; when the one-way valve is opened, the support body is in support fit with a support edge formed by inward extension of the water outlet joint on the bottom plate, and when the one-way valve is closed, the sealing body is in sealing fit with the water passing hole in the water outlet joint.

In order to optimize the technical scheme, the specific measures adopted further comprise:

the support body is of an arc structure with the middle part protruding upwards.

The bottom plate is of a funnel-shaped structure, and the water outlet joint is arranged at the lowest position of the funnel-shaped structure.

The check valve is of an integrally formed integral structure.

The water supply pipe is in a J-shaped structure.

The heating water pipe is arranged at the lower part of the water supply pipe and is of a U-shaped structure.

The sealing body of the one-way valve is a large hemisphere.

The sealing body of the one-way valve is a small hemisphere.

The sealing body of the one-way valve is a sphere.

The upper part of the sealing body of the one-way valve is a hemisphere, and the lower part of the sealing body is an inverted round table.

Compared with the prior art, the water inlet heating structure of the coffee machine is simple in structure, the water inlet of the water supply pipe is connected with the water outlet connector on the bottom plate of the water tank, the one-way valve is arranged in the water outlet connector, and the water supply pipe is provided with a section of heating water pipe; when the one-way valve is opened, the support body is in support fit with a support edge formed by inward extension of the water outlet joint on the bottom plate, at the moment, water in the water tank can enter the water supply pipe through the water through hole, and the water enters the water supply pipe and is heated and boiled by the heating water pipe; the high air pressure generated by the boiling of the water pushes the one-way valve upwards, so that the sealing body is in sealing fit with the water passing hole in the water outlet joint, the one-way valve is closed, after the one-way valve is closed, the high air pressure pushes the water in the water supply pipe to the water outlet, the boiled water is discharged from the water outlet, after the water is discharged, the air pressure in the water supply pipe is reduced, the one-way valve falls and is opened, and the water in the water tank is injected into the water supply pipe again. So circulate, and realize the automatic control of heating of intaking, this coffee machine's the heating structure of intaking adopts mechanical control structure, rational in infrastructure, and installation, maintenance are convenient, guarantee that only partly water gets into in the water supply pipe from the water tank at every turn and heat, can improve the speed of heating greatly, and the energy saving.

Drawings

FIG. 1 is a schematic cross-sectional view of a first embodiment of the present invention;

FIG. 2 is an enlarged view of the portion A of FIG. 1 with the check valve open;

FIG. 3 is an enlarged view of the portion A of FIG. 1 with the check valve closed;

FIG. 4 is a schematic view of the check valve of FIG. 1;

FIG. 5 is a left side view of FIG. 4;

FIG. 6 is a schematic structural view of a check valve according to a second embodiment of the present invention;

FIG. 7 is a schematic structural view of a check valve in the third embodiment of the present invention;

fig. 8 is a schematic structural view of a check valve in the fourth embodiment of the present invention.

Detailed Description

The invention is described in further detail below with reference to the accompanying examples.

As in the embodiment shown in figures 1 to 8,

description of the drawing reference numerals: the water heater comprises a shell 1, a water tank 2, a bottom plate 21, a supporting edge 21a, a water outlet joint 22, a water through hole 22a, a water supply pipe 3, a water inlet 31, a water outlet 32, a heating water pipe 4, a one-way valve 5, a supporting body 51, a connecting rod 52 and a sealing body 53.

In one embodiment, as shown in FIGS. 1 to 5,

the invention relates to a water inlet heating structure of a coffee machine, which comprises a water tank 2 and a water supply pipe 3 which are arranged in a shell 1, wherein a water inlet 31 of the water supply pipe 3 is connected with a water outlet joint 22 on a bottom plate 21 of the water tank 2, a water outlet 32 of the water supply pipe 3 is higher than the water inlet 31, and a section of heating water pipe 4 is arranged on the water supply pipe 3; a one-way valve 5 is arranged in the water outlet joint 22, the one-way valve 5 comprises a support body 51 at the upper part, a connecting rod 52 at the middle part and a sealing body 53 at the lower part, the support body 51 and the sealing body 53 are respectively connected to two ends of the connecting rod 52, and the support body 51 is in a strip structure; when the check valve 5 is opened, the support body 51 is in supporting fit with a support edge 21a formed by inward extension of the water outlet joint on the bottom plate 21, and when the check valve 5 is closed, the sealing body 53 is in sealing fit with the water through hole 22a in the water outlet joint 22.

In the embodiment, the supporting body 51 has an arc structure with a middle portion protruding upward. Adopt the bellied arc structure that makes progress can increase the space of intaking between supporter 51 and the support limit 21a to it intakes to accelerate, improves water heating's efficiency.

In the embodiment, the bottom plate 21 is a funnel-shaped structure, and the water outlet connector 22 is disposed at the lowest position of the funnel-shaped structure. The bottom plate 21 with a funnel-shaped structure is adopted, so that water in the water tank 2 can flow to the lowest water outlet joint 22 under the action of gravity, and the effect of accelerating water inlet can also be achieved.

In the embodiment, the check valve 5 is an integrally formed one-piece structure. The overall strength of the check valve 5 can be improved by adopting an integral structure.

In the embodiment, the water supply pipe 3 has a "J" shape.

In the embodiment, the heating water pipe 4 is disposed at a lower portion of the water supply pipe 3, and the heating water pipe 4 has a U-shaped structure. In water entered into the delivery pipe 3 from the water tank 2, water will gather in the lower part of delivery pipe 3 because of the action of gravity, will generate heat water pipe 4 and set up in the lower part of delivery pipe 3, can directly heat the water of lower part, be favorable to heating efficiency's improvement.

In the embodiment, the sealing body 53 is a large hemisphere.

The working principle is as follows:

the water inlet heating structure of the coffee machine adopts a mechanical control structure to realize the automatic control of water inlet heating by arranging the one-way valve 5 in the water outlet joint 22.

When the water supply pipe 3 is empty, the check valve 5 falls to be in an open state, and at this time, the support body 51 is in supporting engagement with the support edge 21a formed at the water outlet joint of the bottom plate 21 to extend inward, and the water in the water tank 2 flows into the water supply pipe 3 through the gap between the support body 51 and the support edge 21 a.

The water flowing into the water supply pipe 3 boils under the heating of the heating water pipe 4, the temperature in the water supply pipe 3 rises when the water boils, the air pressure increases to form high air pressure, the high air pressure pushes the check valve 5 upwards, the sealing body 53 of the check valve 5 is in contact with the lower end of the water through hole 22a to form sealing, and therefore a closed space is formed between the water and the check valve 5, at the moment, the check valve 5 is in a closed state, and the water supply pipe 3 cannot be injected into the water tank 2. The air pressure in the closed space continues to increase, when the user opens the water taking switch, the air pressure in the closed space can press the water in the water supply pipe 3 out of the water outlet 32, after the water is pressed out, the air pressure in the water supply pipe 3 is reduced, the check valve 5 falls, the check valve 5 is opened, and the water in the water tank 2 is injected into the water supply pipe 3 again.

Circulating in this way, the control of the heating of the inlet water is realized through the opening and closing of the one-way valve 5; the heating device ensures that only one part of water is heated every time, thereby not only improving the heating efficiency, but also effectively saving energy.

In the second embodiment, as shown in fig. 6,

the inlet water heating structure in this embodiment is similar to the inlet water heating structure in the first embodiment, except that the sealing body 53 of the check valve 5 is a small semi-sphere in this embodiment.

In the third embodiment, as shown in fig. 7,

the inlet water heating structure in this embodiment is similar to the inlet water heating structure in the first embodiment, except that the sealing body 53 of the check valve 5 is a sphere in this embodiment.

In the fourth embodiment, as shown in fig. 8,

the inlet water heating structure in this embodiment is similar to the inlet water heating structure in the first embodiment, except that in this embodiment, the upper portion of the sealing body 53 of the check valve 5 is a hemisphere, and the lower portion of the sealing body 53 is an inverted truncated cone.

In the above embodiments, the upper surface of the sealing body 53 of the check valve 5 is a spherical surface, and when the spherical surface contacts with the lower end of the water through hole 22a, a linear seal is formed, so that not only can the sealing reliability be ensured, but also the processing difficulty of parts can be reduced. Of course, other configurations of the seal body 53 that provide an effective seal are possible, such as a hemisphere.

While the preferred embodiments of the present invention have been illustrated, various changes and modifications may be made by one skilled in the art without departing from the scope of the present invention.

Claims

1. A water inlet heating structure of a coffee machine comprises a water tank (2) and a water supply pipe (3) which are arranged in a shell (1), wherein a water inlet (31) of the water supply pipe (3) is connected with a water outlet joint (22) on a bottom plate (21) of the water tank (2), a water outlet (32) of the water supply pipe (3) is higher than the water inlet (31), and a section of heating water pipe (4) is arranged on the water supply pipe (3); the method is characterized in that: a one-way valve (5) is arranged in the water outlet joint (22), the one-way valve (5) comprises a support body (51) at the upper part, a connecting rod (52) at the middle part and a sealing body (53) at the lower part, the support body (51) and the sealing body (53) are respectively connected to two ends of the connecting rod (52), and the support body (51) is of a strip structure; when the one-way valve (5) is opened, the support body (51) is in supporting fit with a supporting edge (21a) formed by inward extension of the water outlet joint on the bottom plate (21), and when the one-way valve (5) is closed, the sealing body (53) is in sealing fit with a water through hole (22a) in the water outlet joint (22);

the support body (51) is of an arc structure with the middle part protruding upwards; the bottom plate (21) is of a funnel-shaped structure, and the water outlet joint (22) is arranged at the lowest part of the funnel-shaped structure;

the one-way valve (5) is of an integrally formed integral structure; the water supply pipe (3) is of a J-shaped structure; the heating water pipe (4) is arranged at the lower part of the water supply pipe (3), and the heating water pipe (4) is of a U-shaped structure; the sealing body (53) of the one-way valve (5) is a big hemisphere or the sealing body (53) of the one-way valve (5) is a small hemisphere;

the water inlet heating structure of the coffee machine adopts a mechanical control structure to realize the automatic control of water inlet heating by arranging a one-way valve (5) in a water outlet joint (22); when the water supply pipe (3) is empty, the check valve (5) falls down and is in an open state, at the moment, the support body (51) is in supporting fit with a support edge (21a) formed by inward extension at a water outlet joint on the bottom plate (21), and water in the water tank (2) flows into the water supply pipe (3) through a gap between the support body (51) and the support edge (21 a); the water flowing into the water supply pipe (3) boils under the heating of the heating water pipe (4), when the water boils, the temperature in the water supply pipe (3) rises, the air pressure increases to form high air pressure, the high air pressure pushes the check valve (5) upwards to enable the sealing body (53) of the check valve (5) to be in contact with the lower end of the water through hole (22a) to form sealing, so that a sealed space is formed between the water and the check valve (5), at the moment, the check valve (5) is in a closed state, and the water supply pipe (3) cannot be injected into the water tank (2); the air pressure in the closed space is continuously increased, when a user opens the water taking switch, the air pressure in the closed space can press the water in the water supply pipe (3) out of the water outlet (32), after the water is pressed out, the air pressure in the water supply pipe (3) is reduced, the check valve (5) falls, the check valve (5) is opened, and the water in the water tank (2) is injected into the water supply pipe (3) again; the circulation realizes the control of the heating of the inlet water through the opening and closing of the one-way valve (5); ensuring that only a portion of the water is heated each time.