CN219742446U

CN219742446U - Pneumatic coffee machine

Info

Publication number: CN219742446U
Application number: CN202321205525.XU
Authority: CN
Inventors: 李湘泉
Original assignee: Guangzhou Lyufeibao Trading Co ltd
Current assignee: Guangzhou Lyufeibao Trading Co ltd
Priority date: 2023-05-18
Filing date: 2023-05-18
Publication date: 2023-09-26
Anticipated expiration: 2033-05-18

Abstract

The utility model discloses a pneumatic coffee machine, which comprises a coffee machine main body, wherein the coffee machine main body comprises a shell and a main body part, the shell is used for protecting the main body part, the main body part comprises an air outlet nozzle, an electric air pump, a fixed seat, a controller and a rubber part, the shell comprises a first shell, a second shell and a third shell, the shells are tightly attached through a pressing seal seat, and two gaps are formed in the third shell and used for displaying the controller; the pressure assembly comprises a pressure bin and a commodity shelf, wherein the commodity shelf is used for containing vessels, and the air outlet nozzle can output fluid to the pressure bin in a unidirectional manner. The technology replaces the traditional compressed air cylinder with the electric air pump so as to provide a stable air source for the pneumatic coffee machine. The air pump is a source of pressure during coffee extraction, and stable pressure can improve the taste quality and the richness of the espresso coffee under the airtight space. And the bulk is small, various bulk configurations are few, the carrying is convenient, and various traditional vehicles are not limited.

Description

Pneumatic coffee machine

Technical Field

The utility model belongs to the technical field of coffee machines, and particularly relates to a pneumatic coffee machine.

Background

The core components of the semi-automatic coffee machine on the market comprise a gas cylinder, a boiler, a brewing head and the like, and the inner structure of the semi-automatic coffee machine also comprises various valves, electronic elements and the like. During extraction, whether the pressure is proper and stable or not is determined by the closed space formed by the brewing head and the handle, the strength and stability of the pressure mainly depend on the air bottle, the relationship between the pressure and the quality of the final coffee and the cup outlet efficiency is particularly close, and the air bottle is a source of the pressure during coffee extraction and greatly affects the taste quality and the intensity of the final espresso.

The existing semi-automatic coffee machine adopting the gas cylinder is inconvenient to transport by adopting the compressed gas cylinder, and the gas cylinder is a consumable and needs to be prepared in a plurality of ways when in use.

Disclosure of Invention

The utility model aims to solve the technical problems and provides an electric air pump for a pneumatic coffee machine.

In order to solve the problems, the utility model is realized according to the following technical scheme:

in a first aspect, the present utility model provides a pneumatic coffee machine comprising:

the coffee machine main body is connected with a brewing head;

the electric air pump is arranged in the inner space of the coffee machine main body;

the electric air pump is connected with the brewing head and is used for compressing air to pressurize the interior of the brewing head.

Preferably, the coffee machine main body is further provided with a control circuit board, and the control circuit board is connected with the electric air pump.

Preferably, the control circuit board is provided with a plurality of physical buttons, the physical buttons are connected with the control circuit board, and the physical buttons are exposed on the outer side wall of the coffee machine body.

Preferably, the coffee machine body is of a vertical columnar structure, and a fixing seat is arranged in the inner space of the coffee machine body;

the fixing seat is provided with an accommodating space penetrating up and down, and the electric air pump is arranged in the accommodating space in a matching way.

Preferably, a plurality of rubber pieces are arranged in the accommodating space of the fixing seat, and a plurality of rubber pieces (13) are arranged between the outer side wall of the electric air pump and the inner side wall of the fixing seat;

the outer wall of the electric air pump tightly abuts against the rubber piece, and the rubber piece is used for limiting the position of the electric air pump in the accommodating space of the fixing seat.

Preferably, the fixing base includes:

the first seat body is provided with a first groove on the side wall opposite to the second seat body;

the second seat body is provided with a second groove opposite to the side wall of the first seat body;

the first seat body is connected with the second seat body through bolts, the first groove and the second groove are matched with the appearance of the electric air pump, and the first groove and the second groove jointly form the accommodating space.

Preferably, the electric air pump includes:

the air cylinder is provided with an air outlet, and a valve is arranged at the air outlet;

the piston can be arranged in the cylinder in a reciprocating manner and is in dynamic sealing fit with the cylinder;

and the driving assembly is connected with the piston and used for driving the piston to reciprocate.

Preferably, the pneumatic coffee machine further comprises:

the air inlet end of the air tap is connected with the electric air pump, and the air outlet end of the air tap is detachably connected with the brewing head.

Preferably, the pneumatic coffee machine further comprises:

and the power supply is connected with the electric air pump.

Preferably, the coffee maker body comprises:

a base;

the columnar shell is connected to the upper end face of the base, and the electric air pump is arranged in the columnar shell. According to the technical scheme provided by the embodiment of the utility model, the pneumatic coffee machine comprises a coffee machine main body, wherein the coffee machine main body is connected with a brewing head; the electric air pump is arranged in the inner space of the coffee machine main body; the electric air pump is connected with the brewing head and is used for compressing air to pressurize the interior of the brewing head. The technology replaces the traditional compressed air cylinder with the electric air pump so as to provide a stable air source for the pneumatic coffee machine. The air pump is a source of pressure during coffee extraction, under the airtight space, the stable pressure can improve the taste quality and the richness of the espresso coffee, and the electric air pump is small in size, is beneficial to carrying and transportation, can save resources by replacing the electric air pump, and is beneficial to environmental protection.

Drawings

The utility model is described in further detail below with reference to the attached drawing figures, wherein:

FIG. 1 is a schematic perspective view of an air-operated coffee machine of the present utility model;

FIG. 2 is a schematic view of the assembly of the holder of the pneumatic coffee machine of the present utility model;

FIG. 3 is a schematic view of the assembly of the electric air pump of the pneumatic coffee machine of the present utility model in the pneumatic coffee machine to which it is applied;

FIG. 4 is an assembled schematic view of the power connection electric air pump of the pneumatic coffee machine of the present utility model;

in the figure:

the coffee machine comprises a 10-coffee machine main body, an 11-control circuit board, 111-a plurality of physical buttons, 12-a fixed seat, 121-a first seat body, 122-a second seat body, 13-a plurality of rubber parts, 14-air nozzles, 15-a power supply, 16-a base and 17-a columnar shell;

20-an electric air pump, 21-a piston, 22-an air cylinder and 23-a driving assembly;

30-brewing head.

Detailed Description

The preferred embodiments of the present utility model will be described below with reference to the accompanying drawings, it being understood that the preferred embodiments described herein are for illustration and explanation of the present utility model only, and are not intended to limit the present utility model.

As shown in fig. 1 to 3, a preferred structure of the air-operated coffee machine according to the present utility model.

As shown in fig. 1, the pneumatic coffee maker of the present utility model includes a coffee maker body 10, an electric air pump 20, a brewing head 30, a power source 15, a stand, and the like.

A coffee maker body 10, the coffee maker body 10 having a brew head 30 connected thereto;

an electric air pump 20, wherein the electric air pump 20 is arranged in the internal space of the coffee machine body 10;

wherein the electric air pump 20 is connected with the brewing head 30, and the electric air pump 20 is used for compressing air to pressurize the interior of the brewing head 30.

In one example, the coffee maker body 10 includes a base 16 and a cylindrical housing 17. The base 16 is a means for counterweight, keeping the start-up coffee machine stably placed on a table or the like. The base 16 may be made of a metal material and has a relatively large weight.

In one implementation, the cylindrical housing 17 is a hollow structure with a hollow interior, so as to form an internal space of the coffee maker body 10, for accommodating the main components. In particular, the cylindrical housing 17 may be made of plastic or metal material. In a preferred implementation, the cylindrical shell 17 is formed by a plurality of sections of tubular shells, specifically 3 sections, and the 3 sections of tubular shells are spliced up and down in sequence to form the cylindrical shell 17.

The tubular shell can be connected in a clamping way, a buckling way, a threaded way, an adhesive way and the like.

The column casing 17, the column casing 17 is connected to the up end of the base 16, and the electric air pump 20 is disposed in the column casing 17.

In one example, the control circuit board 11 includes:

a power supply 15 for supplying a circuit for converting the alternating current into various levels of direct current of the same level with constant output voltage required for the circuit board;

the input interface circuit converts the signal output by the circuit board into an electric signal which can be identified by the microprocessor in the circuit board, converts the output signal into an electric signal through a thermistor or a thermocouple element, and then processes the converted electric signal to obtain the electric signal which can be identified by the microprocessor;

the microprocessor control circuit receives the related information sent by the input interface circuit, analyzes and processes the information, sends out corresponding processing results, and sends the processing results to the output interface circuit;

the output interface circuit amplifies the current or voltage of the signal output by the microprocessor or processes the signal in other aspects, so that the conditioned signal can drive high-power devices such as a high-power tube, a relay coil, an electromagnetic valve, a loudspeaker, a motor and the like to act;

the protection circuit is used for monitoring the running state of each circuit in the circuit board, and when one of the conditions of overvoltage, overcurrent, overheat, phase failure and the like occurs in the circuit board, the protection circuit immediately sends information to the microprocessor under the abnormal conditions of overvoltage, overcurrent, overheat, phase failure and the like, and corresponding protection measures are made immediately after the effect is serious so as to protect the circuit board from damage as much as possible or reduce the damage degree to the minimum;

the communication circuit transmits signals and communicates information between the circuit board and the upper computer or between the circuit board and the upper computer;

and the display circuit displays the main conditions of the circuit board during operation through a display screen, a liquid crystal screen or an LED so as to indicate the operation state of the circuit.

Preferably, the control circuit board 11 is provided with a number of physical buttons 111, which are connected to the control circuit board 11, which are exposed on the outer side wall of the coffee machine body 10,

in one implementation, the physical button is used for adjusting the air pressure and the rotation speed of the electric air pump 20, and the embedded circuit control panel performs control adjustment because different coffee machines have inconsistent pressure requirements on the electric air pump 20. The physical buttons preferably adopt push buttons, touch buttons and the like.

Preferably, the coffee machine body 10 has a vertical column structure, and a fixing seat 12 is disposed in the inner space of the coffee machine body 10;

the fixing base 12 has a vertically penetrating accommodating space, the electric air pump 20 is adaptively disposed in the accommodating space,

in one embodiment, the fixing base 12 is used for fixing the electric air pump 20 running at high speed during operation and protecting the electric air pump 20 components in the non-operation state from unnecessary damage.

Preferably, a plurality of rubber members 13 are disposed in the accommodation space of the fixing base 12, and the plurality of rubber members 13 are disposed between the outer sidewall of the electric air pump 20 and the inner sidewall of the fixing base 12;

wherein the outer wall of the electric air pump 20 closely abuts against the rubber member 13, the rubber member 13 is used for limiting the position of the electric air pump 20 in the accommodating space of the fixing seat 12,

in one embodiment, the rubber member 13 is used to reduce vibration generated when the electric air pump 20 is operated. The rubber member 13 is preferably a rubber gasket such as NBR nitrile rubber, HNBR hydrogenated nitrile rubber, SIL silicone rubber, or the like.

As shown in fig. 2, the fixing base 12 includes:

the first seat body 121, a first groove is arranged on the side wall of the first seat body 121 opposite to the second seat body 122;

the second seat 122, a second groove is disposed on a side wall of the second seat 122 opposite to the first seat 121;

the first seat 121 and the second seat 122 are connected by bolts, the first groove and the second groove are matched with the shape of the electric air pump 20, and the first groove and the second groove jointly form the accommodating space. The first and second seats 121 and 122 realize the installation of the electric air pump by tightly clamping the electric air pump, and on the other hand, the electric air pump can be protected and fastened and clamped by the rubber member.

Through adopting bolted connection, can adjust the interval of first pedestal 121 and second pedestal 122 to the electric air pump of adaptation different specification and dimension, on the other hand, can also be through the screw in of bolt screwing out, the clamping force of adjustment first pedestal 121 and second pedestal 122 to the electric air pump.

In one implementation, the electric air pump 20 is protected by the fixing base 12 and is vertically installed in the grooves of the first and second bases 121 and 122, so as to save the space of the coffee machine body 10. Because of the volume of the pneumatic coffee machine, the motor is preferably a motor, and the dimensions are matched.

As shown in fig. 3, the electric air pump 20 of the present utility model includes:

the air cylinder 22 is provided with an air outlet, and a valve is arranged at the air outlet;

the piston 21 is arranged in the cylinder 22 in a reciprocating manner and is in dynamic sealing fit with the cylinder 22;

and a driving assembly 23, wherein the driving assembly 23 is connected with the piston 21 and is used for driving the piston 21 to reciprocate.

In an exemplary embodiment, the coffee maker body 10 is further provided with a control circuit board 11, and the control circuit board 11 is connected to the electric air pump 20.

In one implementation, the electric air pump 20 further includes:

the drive assembly 23 includes:

a motor having a drive shaft;

the gear transmission mechanism is connected with the driving shaft, and the gear transmission mechanism is connected with the piston 21.

The gear transmission mechanism includes:

a driving gear which is sleeved with a driving shaft of the motor;

bevel gears, wherein the bevel gears are meshed with the driving gears for transmission;

wherein, the end face of the bevel gear is provided with a connecting part which is hinged with the end part of the piston 21; the bevel gear rotates to drive the piston 21 to reciprocate.

The bevel gear is an end face gear, and a circle of convex teeth are arranged on the outer edge of the upper end face of the bevel gear in a ring mode.

The fixed seat 12, the cylinder 22 and the driving component 23 are connected and installed on the fixed seat 12.

The holder 12 includes: the bevel gear comprises a first base 121, a second base 122 and a side bracket, wherein the first base 121, the second base 122 and the side bracket are connected into a whole, the positions of the first base 121 and the second base 122 are in parallel corresponding relation, the side bracket is perpendicular to the first base 121 and the second base 122, and the bevel gear is movably connected to the side bracket.

The piston 21 comprises a body of linked piston and a connecting rod which extends from the cylinder 22 and is connected to a drive assembly 23.

Preferably, the pneumatic coffee machine further comprises:

the air tap 14, the air inlet end of the air tap 14 is connected with the electric air pump 20, and the air outlet end of the air tap 14 is detachably connected with the brewing head 30.

In one example, the air cap 14 includes:

the outside is equipped with first guide mouth, gas line mouth and takeover mouth and inside is equipped with valve body, case, reset spring and steel ball, compressed air is injected by the gas line mouth, overcome spring force and frictional force unidirectional valve port and open, compressed air flows to the takeover mouth from the gas line mouth, when gas line mouth does not have compressed air, under spring force and the effect of the orificial surplus strength of takeover, unidirectional valve port is in the closed state, make takeover mouth to gas line mouth air current and do not lead to, when first guide mouth lets in compressed air, takeover mouth surplus strength and compressed air overcome spring force and frictional force and open unidirectional valve port, the air current flows to the gas line mouth from the takeover mouth when.

In a specific implementation, the rubber piece is a rubber ring, and the two rubber rings are respectively sleeved at the upper end and the lower end of the fixing seat.

Preferably, the pneumatic coffee machine further comprises:

a power supply 15, the power supply 15 is connected with the electric air pump 20,

in one implementation, the power source 15 is a removable battery or a rechargeable battery. On the other hand, the pneumatic coffee machine can be connected with the commercial power through a cable and a plug. The power supply 15 is connected with the motor through a power supply 15 wire.

Preferably, the coffee maker body 10 includes:

a base 16;

the columnar shell 17, the columnar shell 17 is connected to the upper end face of the base 16, the electric air pump 20 is arranged in the columnar shell 17, and in one implementation, the base 16 contacts with the bottom plate to transfer the supporting force of the bracket to the bottom plate, and acts on the bracket and bears the load of the bottom plate.

In one implementation, the air outlet 14 is a one-way valve air outlet 14, a regulator valve air outlet 14, or the like.

In one implementation, the body member has an inner cavity channel, and the electric air pump 20 reciprocates to generate compressed air in the inner cavity channel, thereby generating air pressure.

The technology replaces the traditional compressed air cylinder with the electric air pump so as to provide a stable air source for the pneumatic coffee machine. The air pump is a source of pressure during coffee extraction, under the airtight space, the stable pressure can improve the taste quality and the richness of the espresso coffee, and the electric air pump is small in size, is beneficial to carrying and transportation, can save resources by replacing the electric air pump, and is beneficial to environmental protection.

Wherein the pneumatic coffee machine may be provided with a power supply 15, which is a detachable battery or a rechargeable battery. On the other hand, the pneumatic coffee machine can be connected with the commercial power through a cable and a plug. The power supply 15 is connected with the motor through a power supply 15 wire.

The electric air pump for the pneumatic coffee machine and other structures of the pneumatic coffee machine described in the present embodiment are referred to in the prior art.

The present utility model is not limited to the preferred embodiments, and any modifications, equivalent variations and modifications made to the above embodiments according to the technical principles of the present utility model are within the scope of the technical proposal of the present utility model.

Claims

1. A pneumatic coffee machine, comprising:

a coffee machine body (10), the coffee machine body (10) being connected to a brewing head (30);

an electric air pump (20), wherein the electric air pump (20) is arranged in the internal space of the coffee machine main body (10);

wherein the electric air pump (20) is connected with the brewing head (30), and the electric air pump (20) is used for compressing air to pressurize the interior of the brewing head (30).

2. A pneumatic coffee machine as claimed in claim 1, wherein:

the coffee machine main body (10) is also provided with a control circuit board (11), and the control circuit board (11) is connected with the electric air pump (20).

3. A pneumatic coffee machine as claimed in claim 2, wherein:

the control circuit board (11) is provided with a plurality of physical buttons (111), the physical buttons are connected with the control circuit board (11), and the physical buttons are exposed on the outer side wall of the coffee machine main body (10).

4. A pneumatic coffee machine as claimed in claim 1, wherein:

the coffee machine main body (10) is of a vertical columnar structure, and a fixing seat (12) is arranged in the inner space of the coffee machine main body (10);

the fixing seat (12) is provided with an accommodating space penetrating up and down, and the electric air pump (20) is arranged in the accommodating space in a matched mode.

5. A pneumatic coffee machine as claimed in claim 4, wherein:

a plurality of rubber pieces (13) are arranged in the accommodating space of the fixed seat (12), and the plurality of rubber pieces (13) are arranged between the outer side wall of the electric air pump (20) and the inner side wall of the fixed seat (12);

the outer wall of the electric air pump (20) is tightly abutted against the rubber piece (13), and the rubber piece (13) is used for limiting the position of the electric air pump (20) in the accommodating space of the fixing seat (12).

6. A pneumatic coffee machine according to claim 4, wherein said fixed seat (12) comprises:

the first seat body (121), the sidewall of the first seat body (121) opposite to the second seat body (122) is provided with a first groove;

the second seat body (122), the sidewall of the second seat body (122) opposite to the first seat body (121) is provided with a second groove;

the first seat body (121) is connected with the second seat body (122) through bolts, the first groove and the second groove are matched with the shape of the electric air pump (20), and the first groove and the second groove jointly form the accommodating space.

7. A pneumatic coffee machine according to any one of claims 1 to 6, wherein said electric air pump (20) comprises:

the air cylinder (22) is provided with an air outlet, and a valve is arranged at the air outlet;

the piston (21) is arranged in the cylinder (22) in a reciprocating manner and is in dynamic sealing fit with the cylinder (22);

and the driving assembly (23) is connected with the piston (21) and used for driving the piston (21) to reciprocate.

8. A pneumatic coffee machine as claimed in any one of claims 1 to 6, further comprising:

the air tap (14), the air inlet end of air tap (14) is connected electronic air pump (20), the end of giving vent to anger of air tap (14) with brewing head (30) detachable connection.

9. A pneumatic coffee machine as claimed in any one of claims 1 to 6, further comprising:

and the power supply (15) is connected with the electric air pump (20).

10. A pneumatic coffee machine according to any one of claims 1 to 6, wherein said coffee machine body (10) comprises:

a base (16);

the columnar shell (17), the columnar shell (17) is connected to the upper end face of the base (16), and the electric air pump (20) is arranged in the columnar shell (17).