Coffee machine

Abstract

The utility model discloses a coffee machine which comprises a water tank, a machine body and a liquid outlet nozzle assembly, a brewing cavity and an electric heater are arranged in the machine body, water in the water tank enters the brewing cavity through a water pump, the liquid outlet nozzle assembly comprises a water outlet nozzle and a liquid outlet flow channel, and the coffee machine is characterized in that the liquid outlet flow channel is communicated with the brewing cavity, a piston assembly is arranged at the bottom of the brewing cavity, and the electric heater is arranged in the brewing cavity. And the inner volume of the brewing cavity can be changed. The utility model has the advantages of simple structure and low cost, and is suitable for wide application.

Description

Technical Field

[0001] The utility model relates to the technical field of beverage preparation equipment, in particular to a coffee machine. Background Art

[0002] Hot beverage preparation machines are used to prepare hot beverages, such as Turkish coffee. Turkish coffee machines brew Turkish coffee after the user adds coffee powder, sugar, and other ingredients to the brewing chamber. Typically, after the user adds coffee and sugar, the machine automatically draws the required water from a water tank to brew the coffee powder. The user then pours the coffee into a cup. Typically, the volume of the brewing chamber remains constant. Utility Model Content

[0003] The purpose of the utility model is to provide a coffee machine, the volume of the brewing chamber of the machine can be changed, after the user adds coffee powder, the machine can automatically complete the brewing and coffee liquid discharge actions, so as to overcome the shortcomings of the existing technology.

[0004] The utility model provides a coffee machine through the following technical scheme, including a water tank, a body, and a liquid outlet nozzle assembly. A brewing chamber and an electric heater are arranged in the body. Water in the water tank enters the brewing chamber through a water pump. The liquid outlet nozzle assembly includes a water outlet nozzle and a liquid outlet flow channel. The utility model is characterized in that: the liquid outlet flow channel is connected to the brewing chamber, and a piston assembly is arranged at the bottom of the brewing chamber so that the internal volume of the brewing chamber can be changed.

[0005] Furthermore, the piston assembly includes a first motor, a piston cylinder, and a drive cylinder. The brewing chamber has at least a cylindrical bottom cylinder portion, and a sealing ring is provided between the bottom cylinder portion and the outer wall of the piston cylinder; a threaded connection structure is provided between the outer wall of the drive cylinder and the inner wall of the piston cylinder. The drive cylinder is driven to rotate by the motor, and the piston cylinder is provided with a first structure for limiting the rotation of the cylinder body, so that the piston cylinder is displaced relative to the bottom cylinder portion along the center axis direction.

[0006] Furthermore, the piston cylinder includes a first cylinder sleeve and a second cylinder sleeve, the first cylinder sleeve is threadedly connected to the driving cylinder, and an opening is provided on the upper part of the second cylinder sleeve, and the opening is covered with a brewing chamber bottom plate, and a stirring block is detachably installed on the brewing chamber bottom plate, and an electric heating plate is provided at the bottom of the brewing chamber bottom plate.

[0007] Furthermore, the second cylinder sleeve contains a second motor and a rotating magnetic block, and the stirring block is provided with a driven magnetic block. The second motor drives the rotating magnetic block to rotate, and the driven magnetic block moves under the magnetic attraction of the rotating magnetic block.

[0008] Furthermore, the first structure includes a limiting rib arranged on the outer wall of the piston cylinder, a mounting seat is arranged in the fuselage, and the mounting seat is provided with a limiting groove adapted to the limiting rib.

[0009] Furthermore, a motor sleeve is provided at the bottom of the driving cylinder, and the output shaft of the first motor is inserted into the motor sleeve.

[0010] The utility model has the following beneficial effects: after brewing coffee, the first motor drives the piston cylinder to move upward, thereby reducing the volume of the internal volume of the brewing chamber, and then the coffee flows out from the liquid discharge nozzle. The structure is relatively simple, which reduces the cost, and the coffee can be automatically stirred, heated, and dispensed. It is simple, practical, and very convenient to use.

[0011] A stirring motor is also designed, and the electric heating plate heats the coffee water solution. During the heating and brewing process, the motor drives the stirring block to fully mix the coffee and reduce the accumulation of debris at the bottom. BRIEF DESCRIPTION OF THE DRAWINGS

[0012] Figure 1 This is a three-dimensional diagram of the appearance of the coffee machine of the present invention.

[0013] Figure 2 This is a cross-sectional view of the coffee machine of the present invention.

[0014] Figure 3 This is a schematic diagram of the drive cylinder structure of the present utility model.

[0015] Figure 4 This is a cross-sectional view of the piston cylinder limiting structure of the present utility model. DETAILED DESCRIPTION

[0016] The technical solution of the present application will be clearly and completely described below in conjunction with the accompanying drawings. Obviously, the described embodiments are only part of the embodiments of the present application, rather than all the embodiments.

[0017] The components of the embodiments of the present application generally described and shown in the drawings herein may be arranged and designed in a variety of different configurations. Therefore, the following detailed description of the embodiments of the present application provided in the drawings is not intended to limit the scope of the claimed application, but merely represents selected embodiments of the present application.

[0018] Based on the embodiments in this application, all other embodiments obtained by ordinary technicians in this field without making any creative work shall fall within the scope of protection of this application.

[0019] In the description of this application, it should be noted that the terms "center," "upper," "lower," "left," "right," "vertical," "horizontal," "inner," and "outer," etc., indicating orientations or positional relationships, are based on the orientations or positional relationships shown in the accompanying drawings and are intended solely to facilitate the description of this application and simplify the description. They do not indicate or imply that the devices or components referred to must have a specific orientation, be constructed, or operate in a specific orientation. Therefore, they should not be construed as limitations on this application. Furthermore, the terms "first," "second," and "third" are used for descriptive purposes only and should not be construed as indicating or implying relative importance.

[0020] In the description of this application, it should be noted that, unless otherwise expressly specified or limited, the terms "mounted," "connected," and "connected" should be understood in a broad sense. For example, they can refer to fixed connections, detachable connections, or integral connections; mechanical connections or electrical connections; direct connections or indirect connections through an intermediate medium; and internal connections between two components. Those skilled in the art will understand the specific meanings of the above terms in this application based on the specific circumstances.

[0021] Refer to the following Figure 1-Figure 4 A coffee machine according to some embodiments of the present application is described.

[0022] like Figure 1 、 2 , 3 and 4 show a coffee machine of the present invention, comprising a water tank 20, a body 10, a liquid outlet nozzle assembly 30 and a top cover 40. The top cover 40 is above the brewing chamber and is used to cover the brewing chamber 1. The brewing chamber 1 and the electric heater 6 are arranged in the body. The water in the water tank enters the brewing chamber 1 through a water pump. The liquid outlet nozzle assembly comprises a water outlet nozzle and a liquid outlet channel 2. The liquid outlet channel 2 is connected to the brewing chamber 1. A piston assembly is arranged at the bottom of the brewing chamber so that the internal volume of the brewing chamber can be changed.

[0023] The piston assembly includes a first motor 5, a piston cylinder 3, and a driving cylinder 4. The brewing chamber is cylindrical, and its inner cavity cross-section is adapted to the piston cylinder, so that the piston cylinder can move in the brewing chamber, thereby changing the internal volume. A sealing ring 8 is provided between the brewing chamber and the outer wall of the piston cylinder; a threaded connection structure 41 is provided between the outer wall of the driving cylinder and the inner wall of the piston cylinder. The driving cylinder is driven to rotate by the first motor, and the piston cylinder is provided with a first structure for limiting the rotation of the cylinder body. Therefore, when the driving cylinder makes a spiral motion along the thread of the piston cylinder, the piston cylinder moves up and down along the central axis in the brewing chamber.

[0024] See also Figure 2Furthermore, the piston cylinder includes a first cylinder sleeve 32 and a second cylinder sleeve 31. The cross-section of the second cylinder sleeve is larger than that of the first cylinder sleeve. The first cylinder sleeve is threadedly connected to the driving cylinder. An opening is provided at the top of the second cylinder sleeve. The opening is covered with a brewing chamber bottom plate 7. A stirring block 9 is detachably installed on the brewing chamber bottom plate, and an electric heating plate 6 is provided at the bottom of the brewing chamber bottom plate.

[0025] Furthermore, the second sleeve contains a second motor 90 and a rotating magnetic block, and the stirring block is provided with a driven magnetic block. The second motor drives the rotating magnetic block to rotate, and the driven magnetic block moves under the magnetic attraction of the rotating magnetic block.

[0026] See also Figure 4 The first structure includes a limiting rib 321 arranged on the outer wall of the piston cylinder, and a mounting seat is arranged in the fuselage, and the mounting seat is provided with a limiting groove 320 adapted to the limiting rib.

[0027] Furthermore, a motor sleeve is provided at the bottom of the driving cylinder, and the output shaft of the first motor is inserted into the motor sleeve. The hollow inner cavity of the driving cylinder is provided with three or four intersecting ribs, and the motor sleeve is located at the intersection of the ribs.

[0028] Although the embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and variations may be made to these embodiments without departing from the principles and spirit of the present invention, and the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A coffee machine comprising a water tank, a body, and a liquid outlet assembly, wherein a brewing chamber and an electric heater are disposed within the body, water from the water tank enters the brewing chamber through a water pump, and the liquid outlet assembly comprises a water outlet nozzle and a liquid outlet channel, characterized in that: The liquid outlet channel is communicated with the brewing chamber, and a piston assembly is provided at the bottom of the brewing chamber so that the internal volume of the brewing chamber can be changed.

2. A coffee machine according to claim 1, characterized in that: The piston assembly includes a first motor, a piston cylinder, and a driving cylinder. The brewing chamber has at least a cylindrical bottom cylinder portion, and a sealing ring is provided between the bottom cylinder portion and the outer wall of the piston cylinder; a threaded connection structure is provided between the outer wall of the driving cylinder and the inner wall of the piston cylinder. The driving cylinder is driven to rotate by the motor, and the piston cylinder is provided with a first structure that limits the rotation of the cylinder body, so that the piston cylinder is displaced relative to the bottom cylinder portion along the central axis direction.

3. A coffee machine according to claim 2, characterized in that: The piston cylinder includes a first cylinder sleeve and a second cylinder sleeve. The first cylinder sleeve is threadedly connected to the driving cylinder. An opening is provided on the upper part of the second cylinder sleeve. The opening is covered with a brewing chamber bottom plate. A stirring block is detachably installed on the brewing chamber bottom plate. An electric heating plate is provided at the bottom of the brewing chamber bottom plate.

4. A coffee machine according to claim 3, characterized in that: The second cylinder sleeve contains a second motor and a rotating magnetic block, and the stirring block is provided with a driven magnetic block. The second motor drives the rotating magnetic block to rotate, and the driven magnetic block moves under the magnetic attraction of the rotating magnetic block.

5. The coffee machine according to claim 2, characterized in that: The first structure includes a limiting rib arranged on the outer wall of the piston cylinder, a mounting seat is arranged in the fuselage, and the mounting seat is provided with a limiting groove adapted to the limiting rib.

6. The coffee machine according to claim 2, characterized in that: A motor sleeve is provided at the bottom of the driving cylinder, and the output shaft of the first motor is inserted into the motor sleeve.

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