Efficient extraction mechanism of coffee machine

Abstract

The utility model relates to an efficient extraction mechanism of a coffee machine, which comprises a machine frame, a base arranged on the machine frame, a driving assembly arranged at the lower end of the base, a powder containing barrel connected with the output end of the driving assembly, an extraction assembly arranged on the base, and a water inlet pipe connected with the other end of the powder containing barrel, a first elastic limiting structure and a second elastic limiting structure are arranged between the powder containing barrel and the water inlet pipe and between the water inlet pipe and the base correspondingly, and each of the first elastic limiting structure and the second elastic limiting structure comprises a spring and a clamping protruding piece arranged corresponding to the water inlet pipe. The first elastic limiting structure is arranged between the powder containing barrel and the water inlet pipe, so that the powder containing barrel has a certain traction effect when pulling the water inlet pipe to act, the second spring limiting structure is arranged between the water inlet pipe and the base, so that the powder containing barrel retreats first in the running action process, the action stability can be improved, and the service life of the powder containing barrel is prolonged. Therefore, the extraction effect is effectively improved.

Description

Technical Field

[0001] The present invention relates to the technical field of coffee machines, and in particular to a high-efficiency extraction mechanism for coffee machines. Background Art

[0002] The principle of coffee extraction is to put the ground coffee powder into the coffee extraction device and squeeze it into a powder cake, then use high-temperature and high-pressure water to flow through the powder cake to extract the relevant substances in the coffee powder, and form coffee together with hot water, and discharge it into a drinking container. The extracted coffee powder cake is discharged. The existing extraction device has a movable part and a capsule that can move along the longitudinal axis. The movable part is moved by the operating rod. During this movement, the movable part allows the capsule to enter its shell, so that the capsule axis is lowered toward the axis of the movable part. As a result, the collar of the capsule passes under the stopper. Then hot water is supplied through the pipe in the movable part, and the water flows through the capsule to achieve the extraction of coffee. This type of structure is to achieve the purpose of coffee extraction by reciprocating the capsule in the axial direction and combining with the water flow. However, since the movable part and the capsule are arranged and moved axially, and the operating rod swings when controlling the movable part to move toward the capsule, the position of the movable part and the capsule is tilted or misaligned, which affects the extraction and use of the coffee machine. In addition, the structure is relatively complicated, and the movable part is driven to move by the operating rod, which is troublesome to operate. In addition, when the coffee powder in the capsule is extracted with hot water, there will be residual coffee powder in each extraction round, which makes the extraction not thorough enough and is not easy to clean.

[0003] In response to the above-mentioned defects, there is an extraction mechanism of a coffee machine in the prior art, which drives the powder containing barrel to rotate in a circle through a driving assembly, and cooperates with the powder filling channel, the extraction assembly and the water inlet blocking member to realize powder filling, extraction and powder falling cleaning in sequence. However, when the powder containing barrel rotates in a circle, no rebound structure is provided between the powder containing barrel and the water inlet pipe, and between the water inlet pipe and the base. There is no buffer when the powder containing barrel rotates and when it pulls the water inlet pipe to rotate during the rotation. This will cause unstable rotation of the powder containing barrel and the water inlet pipe, thereby affecting the extraction effect. Summary of the invention

[0004] The object of the present invention is to provide an efficient extraction mechanism for a coffee machine, which provides a spring limiting structure between a powder containing barrel and a water inlet pipe and between the water inlet pipe and a base, so that the powder containing barrel has a certain pulling effect when pulling the water inlet pipe, so that the powder containing barrel retreats first during the operation, which can improve the stability of the action, thereby effectively improving the extraction effect, and the structure is simple and reasonable.

[0005] In order to solve the above technical problems, the present invention is solved by the following technical solutions:

[0006] A high-efficiency extraction mechanism for a coffee machine comprises a frame, a base is arranged on the frame, a driving assembly is arranged at the lower end of the base, an output end of the driving assembly is connected to a powder barrel, an extraction assembly is arranged on the base for easy fitting of the powder barrel, a water inlet pipe is connected to the other end of the powder barrel, a first elastic limiting structure and a second elastic limiting structure are respectively arranged between the powder barrel and the water inlet pipe and between the water inlet pipe and the base, and both the first elastic limiting structure and the second elastic limiting structure comprise a spring and a convex piece arranged corresponding to the water inlet pipe.

[0007] Preferably, a limit seat is provided in one end of the water inlet pipe connected to the powder barrel, a spring of a first elastic limit structure is installed between the limit seat and the water inlet pipe, and a first mounting hole for mounting a convex part of the first elastic limit structure is opened on the upper part of this end of the water inlet pipe.

[0008] Further preferably, a bending frame plate is provided at the upper end of the corresponding base in the frame, a second mounting hole is provided at the front end of the bending frame plate for facilitating the installation of the spring of the second elastic limiting structure, and a second mounting groove is provided at the lower part of the end where the water inlet pipe is connected to the extraction component for facilitating the installation of the convex part of the second elastic limiting structure.

[0009] Further preferably, the water inlet pipe includes a lower tube body and an upper tube body, the limit seat is arranged in the lower tube body, the second mounting groove is arranged at the bottom end of the lower tube body, an arc guide rail is formed at the upper end of the upper tube body, the locking convex part of the first elastic limiting structure is correspondingly arranged on the arc guide rail close to one end of the powder barrel, and a water inlet is opened at one end of the arc guide rail close to the extraction component.

[0010] Further preferably, a powder filling channel is provided above the powder containing barrel to facilitate the coffee powder in the barrel to fall into the powder containing barrel, and a guide groove is provided in one end of the powder containing barrel connected to the water inlet pipe.

[0011] Further preferably, the extraction assembly includes an extraction cylinder, an extraction frame and a filter plate are provided at one end of the extraction cylinder corresponding to the powder material cylinder, an extraction chamber is formed between the extraction frame and the filter plate, a coffee flow channel is provided on the extraction frame, and a third elastic limiting structure is provided between the extraction cylinder and the water inlet pipe.

[0012] Further preferably, an installation cavity for installing a spring of a third elastic limiting structure is provided at the upper portion of one end of the extraction cylinder corresponding to the water inlet pipe, a through hole for installing a cam of the third elastic limiting structure is provided at the bottom end of the installation cavity, and a third installation groove for facilitating the installation of the cam of the third elastic limiting structure is provided at the upper portion of one end of the water inlet pipe connected to the extraction cylinder.

[0013] Further preferably, the driving assembly includes a motor arranged in the lower middle part of the base, a sleeve is sleeved on the output shaft of the motor, a slot is provided on the outer wall of the sleeve, a ring is provided on the powder containing barrel, and a tooth is provided on the inner wall of the ring to engage with the slot.

[0014] Further preferably, the convex part is spherical, semicircular or arc-shaped, and is made of plastic or metal.

[0015] The beneficial effects of the present invention include: it comprises a frame, a base is arranged on the frame, a driving assembly is arranged at the lower end of the base, the output end of the driving assembly is connected to a powder barrel, the base is provided with an extraction assembly which is convenient for the powder barrel to be fitted and sleeved, the other end of the powder barrel is connected to a water inlet pipe, a first elastic limiting structure and a second elastic limiting structure are respectively arranged between the powder barrel and the water inlet pipe and between the water inlet pipe and the base, the first elastic limiting structure and the second elastic limiting structure both comprise a spring and a convex piece arranged corresponding to the water inlet pipe, the overall structure of the present invention is simple and reasonable, by arranging the first elastic limiting structure between the powder barrel and the water inlet pipe, the powder barrel has a certain pulling effect when the water inlet pipe is pulled, and a second spring limiting structure is arranged between the water inlet pipe and the base, so that the powder barrel retreats first during the operation, which can improve the stability of the action, thereby effectively improving the extraction effect. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 It is a structural schematic diagram of the present invention.

[0017] Figure 2 It is a schematic diagram of the decomposition structure of the present invention.

[0018] Figure 3 It is a cross-sectional view of the first elastic limiting structure of the present invention.

[0019] Figure 4 It is a cross-sectional view of the second and third elastic limiting structures of the present invention. DETAILED DESCRIPTION

[0020] The present invention is further described in detail below in conjunction with the accompanying drawings and embodiments.

[0021] like Figure 1-4As shown, a high-efficiency extraction mechanism of a coffee machine includes a frame 1, a base 2 is provided on the frame 1, a driving assembly is provided at the lower end of the base 2, an output end of the driving assembly is connected to a powder barrel 3, an extraction assembly is provided on the base 2 for easy matching and sleeve connection of the powder barrel 3, a water inlet pipe 4 is connected to the other end of the powder barrel 3, a first elastic limiting structure 5 and a second elastic limiting structure 6 are respectively provided between the powder barrel 3 and the water inlet pipe 4 and between the water inlet pipe 4 and the base 2, and the first elastic limiting structure 5 and the second elastic limiting structure 6 both include a spring 8 and a pair of A convex piece 9 is provided on the water inlet pipe 4, and the convex piece 9 can be spherical, semicircular or arc-shaped. The convex piece 9 is made of plastic or metal. The overall structure of the present invention is simple and reasonable. By providing a first elastic limiting structure 5 between the powder barrel 3 and the water inlet pipe 4, the powder barrel 3 has a certain pulling effect when pulling the water inlet pipe 4. A second spring 8 limiting structure is provided between the water inlet pipe 4 and the base 2, so that the powder barrel 3 retreats first during the operation, which can improve the stability of the action, thereby effectively improving the extraction effect.

[0022] In this embodiment, a limit seat 41 is provided in the end of the water inlet pipe 4 connected to the powder barrel 3, and a spring 8 of the first elastic limit structure 5 is installed between the limit seat 41 and the water inlet pipe 4. A first mounting hole 42 for mounting a cam 9 of the first elastic limit structure 5 is opened on the upper part of this end of the water inlet pipe 4. When the powder barrel 3 rotates, through the cooperation of the cam 9 and the spring 8, when the powder barrel 3 rotates toward the extraction component and pulls the water inlet pipe 4, the powder barrel 3 can be retreated first to prevent it from getting stuck or stuck, thereby improving the stability of the powder barrel 3 during operation.

[0023] In this embodiment, a bending frame plate 11 is correspondingly provided at the upper end of the corresponding base 2 in the frame 1, and a second mounting hole 12 is provided at the front end of the bending frame plate 11 for facilitating the installation of the spring 8 of the second elastic limiting structure 6. A second mounting groove 13 is provided at the lower part of one end of the water inlet pipe 4 connected to the extraction component for facilitating the installation of the convex part 9 of the second elastic limiting structure 6. When the water inlet pipe 4 is pulled by the powder barrel 3, there is a certain pulling effect, which can directly and continuously make the water inlet pipe 4 rotate in time with the powder barrel 3, thereby improving the stability of the action.

[0024] In this embodiment, the water inlet pipe 4 includes a lower tube body 43 and an upper tube body 44, the limit seat 41 is arranged in the lower tube body 43, the second mounting groove 13 is arranged at the bottom end of the lower tube body 43, and an arc guide rail 45 is formed at the upper end of the upper tube body 44. The convex part 9 of the first elastic limiting structure 5 is correspondingly arranged on the arc guide rail 45 close to the end of the powder barrel 3, and a water inlet 46 is opened at the end of the arc guide rail 45 close to the extraction component. By setting the water inlet pipe 4 into a structure formed by the lower tube body 43 and the upper tube body 44 being matched and connected, the setting of the limit seat 41 and the installation of the first elastic limiting structure 5 are facilitated.

[0025] In this embodiment, a powder filling channel is provided above the powder containing barrel 3 to facilitate the coffee powder in the barrel to fall into the powder containing barrel 3. A guide groove is provided in the end of the powder containing barrel 3 connected to the water inlet pipe 4. The arc guide rail 45 is connected to the guide groove to facilitate the connection and rotation of the water inlet pipe 4 and the powder containing barrel 3.

[0026] In this embodiment, the extraction component includes an extraction cylinder 51, and an extraction frame 52 and a filter plate 53 are provided at the end of the extraction cylinder 51 corresponding to the powder material cylinder 3, an extraction chamber is formed between the extraction frame 52 and the filter plate 53, a coffee flow channel is provided on the extraction frame 52, and a third elastic limiting structure 7 is provided between the extraction cylinder 51 and the water inlet pipe 4. An installation cavity for installing a spring 8 for installing the third elastic limiting structure 7 is provided at the upper part of the end of the extraction cylinder 51 corresponding to the water inlet pipe 4, and a through hole for installing a convex part 9 for installing the third elastic limiting structure 7 is provided at the bottom of the installation cavity. A third installation groove 54 for facilitating the installation of the convex part 9 of the third elastic limiting structure 7 is provided at the upper part of the end of the water inlet pipe 4 connected to the extraction cylinder 51. The third elastic limiting structure 7 facilitates the connection between the extraction cylinder 51 and the water inlet pipe 4, and facilitates the return of the water inlet pipe 4.

[0027] In this embodiment, the driving assembly includes a motor arranged in the middle and lower part of the base 2, and a sleeve tube 21 is sleeved on the output shaft of the motor. A slot 22 is provided on the outer wall of the sleeve tube 21, and a ring 23 is provided on the powder barrel 3. The inner wall of the ring 23 is provided with a latching tooth 24 that cooperates with the slot 22. When connecting, the sleeve tube 21 is connected to the output shaft of the motor at the center position of the base 2, and then the powder barrel 3 is connected to the sleeve tube 21 through the cooperation of the slot 22 and the latching tooth 24, which is convenient for loading and unloading.

[0028] During operation, when the motor rotates clockwise to the bottom of the powder filling channel, after a certain amount of coffee powder in the barrel falls into the powder holding barrel 3, the motor continues to drive the powder holding barrel 3 to rotate to the side of the extraction frame 52 and connect with the filter disk 53. The rotation of the powder holding barrel 3, under the action of the first elastic limiting structure 5, will drive the water inlet pipe 4 to rotate together, and then the water is pumped into the powder holding barrel 3 through the water inlet 46 to mix with the coffee powder, and then enters the extraction chamber after passing through the filter disk 53 for extraction, and finally the extracted coffee flows out through the coffee flow channel. After the extraction is completed, the motor The powder barrel 3 is driven to reverse, and under the action of the second elastic limiting structure 6, the powder barrel 3 is caused to retreat first during the operation; when it is reversed to the bottom of the powder filling channel, it is convenient for excess coffee powder in the powder filling channel to fall into it, and the powder barrel 3 continues to reverse and drives the water inlet pipe 4 to reverse together. When the water inlet pipe 4 rotates the limiting rod to the maximum position on the right side of the rotating limiting groove, it stops moving. At this time, the powder barrel 3 continues to reverse until the water inlet pipe 4 rotates to the maximum position on the left side of the powder barrel 3, so that the remaining coffee powder accumulated in the powder barrel 3 is pushed out.

[0029] According to the concept of the present invention, there may be changes in the specific implementation method and application scope, and the content of this specification should not be understood as limiting the present invention.

Claims

1. An efficient extraction mechanism for a coffee machine, comprising a frame, a base provided on the frame, a driving assembly provided at the lower end of the base, a powder barrel connected to the output end of the driving assembly, an extraction assembly provided on the base for easy fitting of the powder barrel, a water inlet pipe connected to the other end of the powder barrel, characterized in that: A first elastic limiting structure and a second elastic limiting structure are respectively provided between the powder containing barrel and the water inlet pipe and between the water inlet pipe and the base. The first elastic limiting structure and the second elastic limiting structure both include a spring and a convex piece corresponding to the water inlet pipe.

2. The efficient extraction mechanism of a coffee machine according to claim 1, characterized in that: A limit seat is arranged in one end of the water inlet pipe connected to the powder barrel, a spring of a first elastic limit structure is installed between the limit seat and the water inlet pipe, and a first mounting hole for mounting a convex part of the first elastic limit structure is opened on the upper part of the water inlet pipe.

3. The efficient extraction mechanism of a coffee machine according to claim 2, characterized in that: A bending frame plate is correspondingly provided at the upper end of the corresponding base in the frame, and a second mounting hole is provided at the front end of the bending frame plate for facilitating the installation of a spring of a second elastic limiting structure, and a second mounting groove is provided at the lower part of one end of the water inlet pipe connected to the extraction component for facilitating the installation of a convex part of the second elastic limiting structure.

4. The efficient extraction mechanism of a coffee machine according to claim 3, characterized in that: The water inlet pipe includes a lower tube body and an upper tube body, the limit seat is arranged in the lower tube body, the second mounting groove is arranged in the bottom end of the lower tube body, an arc guide rail is formed at the upper end of the upper tube body, and the convex part of the first elastic limit structure is correspondingly arranged on the arc guide rail close to the end of the powder barrel, and a water inlet is opened at the end of the arc guide rail close to the extraction component.

5. The efficient extraction mechanism of a coffee machine according to claim 4, characterized in that: A powder filling channel is provided above the powder containing barrel to facilitate the coffee powder in the barrel to fall into the powder containing barrel, and a guide groove is provided in one end of the powder containing barrel connected to the water inlet pipe.

6. The efficient extraction mechanism of a coffee machine according to claim 3, characterized in that: The extraction assembly includes an extraction cylinder, an extraction frame and a filter plate are provided at one end of the extraction cylinder corresponding to the powder material cylinder, an extraction chamber is formed between the extraction frame and the filter plate, a coffee flow channel is provided on the extraction frame, and a third elastic limiting structure is provided between the extraction cylinder and the water inlet pipe.

7. The efficient extraction mechanism of a coffee machine according to claim 6, characterized in that: An installation cavity for installing a spring of a third elastic limiting structure is provided at the upper portion of one end of the extraction cylinder corresponding to the water inlet pipe, a through hole for installing a cam of the third elastic limiting structure is provided at the bottom end of the installation cavity, and a third installation groove for facilitating the installation of the cam of the third elastic limiting structure is provided at the upper portion of one end of the water inlet pipe connected to the extraction cylinder.

8. The efficient extraction mechanism of a coffee machine according to claim 1, characterized in that: The driving assembly includes a motor arranged at the middle lower part of the base, a sleeve sleeve is sleeved on the output shaft of the motor, a slot is opened on the outer wall of the sleeve sleeve, a ring is arranged on the powder material barrel, and a tooth is arranged on the inner wall of the ring to engage with the slot.

9. The efficient extraction mechanism of a coffee machine according to claim 1, characterized in that: The convex part is spherical, semicircular or arc-shaped, and is made of plastic or metal.

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