Weighing module for semi-automatic coffee machine

Abstract

The utility model discloses a weighing module for a semi-automatic coffee machine, which comprises a fixing frame arranged in a machine body, a weighing sensor is mounted on the fixing frame, a suspension arm is mounted at the sensing end of the weighing sensor, and a weighing sensor is mounted on the suspension arm. A mounting platform connected with an extraction powder cup is arranged at one end, far away from the weighing sensor, of the suspension arm, the mounting platform is detachably connected with the extraction powder cup, and a communication opening for communicating the bean grinding assembly with the extraction powder cup is formed in the mounting platform. The lifting arm is matched with the mounting platform, so that the extraction powder cup is mounted on the mounting platform, the weighing sensor is arranged in the machine body, the problem of water seepage risk caused by external arrangement of the sensor can be solved, the stability of a product is effectively improved, and the service life of the product is effectively prolonged.

Description

Technical Field

[0001] The utility model relates to a weighing module for a semi-automatic coffee machine. Background Art

[0002] The prior art, such as the Chinese invention patent document with the publication number CN103932596A, discloses a coffee grinder device and a coffee machine. The coffee grinder device of the coffee machine includes a grinding component for grinding coffee beans and a control component for controlling the operation of the grinding component. The control component includes an input module for setting the powder output amount, a monitoring module for monitoring the powder output amount, and a controller. The controller receives signals from the input module and the monitoring module and thereby controls the operation of the grinding component. This kind of coffee grinder device can directly set the required amount of coffee powder to achieve the purpose of precisely controlling the powder output amount of the coffee machine.

[0003] In the prior art, the coffee powder container is arranged on the weighing pan, and the weight sensor is arranged inside the weighing pan. As the amount of coffee powder in the coffee powder container gradually increases, the weight measured by the weight sensor will also gradually increase, and the controller 33 will receive the signal that the amount of coffee powder in the coffee powder container is gradually increasing.

[0004] Based on the above, the existing weight sensor is arranged inside the weighing pan, and the weighing pan is movably arranged. When weighing, the coffee powder container is placed on the weighing pan. The problem with this weighing structure is that when liquid falls on the weighing pan, the liquid may seep into the inside and thus affect the sensor, which needs to be further improved. Summary of the Utility Model

[0005] The utility model aims to at least solve one of the technical problems existing in the prior art. For this purpose, the utility model provides a weighing module for a semi-automatic coffee machine.

[0006] A weighing module for a semi-automatic coffee machine designed according to this purpose, the weighing module includes a fixed frame arranged inside the machine body, a weighing sensor is installed on the fixed frame, a suspension arm is installed at the sensing end of the weighing sensor, an installation platform connected to the extraction powder cup is arranged at the end of the suspension arm far away from the weighing sensor, the installation platform is detachably connected to the extraction powder cup, and a communication port for communicating the grinding component and the extraction powder cup is arranged on the installation platform.

[0007] Preferably, the installation platform is magnetically connected to the extraction powder cup.

[0008] Preferably, a powder delivery pipe fitting is arranged in the communication port. When the extraction powder cup is installed on the installation platform, the lower end of the powder delivery pipe fitting is inserted into the inside of the extraction powder cup.

[0009] Preferably, a plurality of first magnets are provided on the installation platform, and second magnets are provided at positions corresponding to the first magnets on the extraction powder cup. When the extraction powder cup is assembled to the installation platform, the second magnets are attracted and fixed to the first magnets.

[0010] Compared with the prior art, in the present utility model, the weighing module includes a fixing frame provided inside the machine body. A weighing sensor is installed on the fixing frame. A suspension arm is installed at the sensing end of the weighing sensor. An installation platform connected to the extraction powder cup is provided at one end of the suspension arm away from the weighing sensor. The installation platform is detachably connected to the extraction powder cup. A communication port for communicating the grinding component and the extraction powder cup is provided on the installation platform. In the present utility model, through the cooperation of the suspension arm and the installation platform, the extraction powder cup is installed on the installation platform, and the weighing sensor is arranged inside the machine body, which can solve the problem of the risk of water seepage when the sensor is externally placed, and effectively improve the stability and service life of the product. Description of the Drawings

[0011] Figure 1 Is a three-dimensional structural schematic diagram of a semi-automatic coffee machine;

[0012] Figure 2 Is a first cross-sectional structural schematic diagram of a semi-automatic coffee machine;

[0013] Figure 3 Is a second cross-sectional structural schematic diagram of a semi-automatic coffee machine;

[0014] Figure 4 Is a planar structural schematic diagram of the weighing module;

[0015] Figure 5 Is an exploded structural schematic diagram of the weighing module and the extraction powder cup;

[0016] Figure 6 Is a cross-sectional structural schematic diagram of the weighing module and the extraction powder cup;

[0017] Figure 7 Is a cross-sectional structural schematic diagram of the extraction powder pressing module;

[0018] Figure 8 Is a first three-dimensional structural schematic diagram of the extraction powder pressing module;

[0019] Figure 9 Is a second three-dimensional structural schematic diagram of the extraction powder pressing module;

[0020] Figure 10 Is a first assembled state schematic diagram of the extraction powder pressing module and the extraction powder cup;

[0021] Figure 11 Is a second assembled state schematic diagram of the extraction powder pressing module and the extraction powder cup;

[0022] Figure 12 Schematic diagram of the three-dimensional structure of the extraction powder cup;

[0023] Figure 13 One of the schematic diagrams of the sectional structure of the extraction powder cup;

[0024] Figure 14 Another schematic diagram of the sectional structure of the extraction powder cup;

[0025] Figure 15 Schematic sectional view of the extraction powder cup in the powder pushing state. Specific implementation mode

[0026] The present utility model will be further described below in conjunction with the accompanying drawings and embodiments.

[0027] Refer to Figures 1 - 15 , a weighing module for a semi-automatic coffee machine, the semi-automatic coffee machine includes a machine body 10, a grinding component 20 for supplying coffee powder to an extraction powder cup 50 is arranged in the machine body 10, a weighing module 40 for connecting the extraction powder cup 50 is arranged at the powder outlet of the grinding component 20, and an extraction and powder pressing module 30 for pressing the powder in the extraction powder cup 50 and performing extraction is arranged on the machine body 10.

[0028] In the present utility model, the semi-automatic coffee machine is provided with a controller for the grinding component 20, the weighing module 40, and the extraction and powder pressing module 30.

[0029] Based on the above embodiments, the working principle of the present utility model is as follows: when powdering, the extraction powder cup 50 is connected to the weighing module 40, and the grinding component 20 supplies coffee powder into the extraction powder cup 50. During this process, the weighing module 40 detects the real-time change of the extraction powder cup 50 to control the accurate amount of coffee powder in the extraction powder cup 50.

[0030] During powder pressing and extraction, the extraction powder cup 50 filled with coffee powder is installed on the extraction and powder pressing module 30 to compact and distribute the powder in the extraction powder cup 50 through the extraction and powder pressing module 30. After powder pressing is completed, extraction is performed through the extraction and powder pressing module 30, and the extracted coffee liquid flows downward from the extraction powder cup 50.

[0031] Refer to Figures 4 to 6 , the weighing module 40 includes a fixed frame 410 arranged in the machine body 10, a weighing sensor 420 is installed on the fixed frame 410, a suspension arm 430 is installed at the sensing end of the weighing sensor 420, an installation platform 440 connected to the extraction powder cup 50 is arranged at the end of the suspension arm 430 away from the weighing sensor 420, the installation platform 440 is detachably connected to the extraction powder cup 50, and a communication port 441 for communicating the grinding component 20 and the extraction powder cup 50 is arranged on the installation platform 440.

[0032] The extraction powder cup 40 is installed on the installation platform 440, and its weight acts on the sensing end of the weighing sensor 420 through the boom 430. The weighing sensor 420 can detect the weight in real time to control the amount of powder delivered by the grinding component 20 to the extraction powder cup 50 at a single time. The principle is that the weighing sensor 420 transmits the weight data to the controller in real time, and at the same time, the controller is used to control the start and stop of the grinding component, so as to stop supplying powder to the extraction powder cup by controlling the stop of the grinding component.

[0033] See Figure 6 , the installation platform 440 is magnetically connected to the extraction powder cup 50.

[0034] Furthermore, a plurality of first magnets 450 are arranged on the installation platform 440, and second magnets 70 are arranged at positions corresponding to the first magnets 450 on the extraction powder cup 50. When the extraction powder cup 50 is assembled to the installation platform 440, the second magnet 70 is attracted and fixed to the first magnet 450.

[0035] See Figure 2 , a powder delivery pipe fitting 60 is arranged in the communication port 441. When the extraction powder cup 50 is installed on the installation platform 440, the lower end of the powder delivery pipe fitting 60 is inserted into the interior of the extraction powder cup 50. The arrangement of the powder delivery pipe fitting 60 can prevent powder leakage caused by gaps at the connection between the extraction powder cup 50 and the installation platform 440.

[0036] See Figure 7 , the extraction and powder pressing module 30 includes an installation bracket 310. An installation cavity 311 for installing the extraction powder cup 50 is arranged on the installation bracket 310. An elevating screw rod 320 that moves up and down relative to the installation bracket 310 is arranged on the installation bracket 310 above the installation cavity 311. A powder pressing head 330 is fixed to the lower end of the elevating screw rod 320. The interior of the elevating screw rod 320 is hollow and is provided with a delivery pipe 340. An extraction channel 331 communicated with the delivery pipe 340 is integrated in the powder pressing head 330. The lower end of the extraction channel 331 is provided with an opening. A driving component 350 for driving the elevating screw rod 320 to move up or down is arranged on the installation bracket 310.

[0037] Based on the above embodiment of the extraction and powder pressing module 30, during powder pressing, the driving component 350 drives the elevating screw rod 320 to move up or down, so as to drive the powder pressing head 330 located at the lower end of the elevating screw rod 320 to move down into the extraction powder cup 50 to compact the powder in the extraction powder cup 50.

[0038] During extraction, the external supply mechanism conveys extraction water to the conveying pipe 340. After the extraction water enters the extraction channel 331, it flows downward into the extraction powder cup 50 through the extraction channel 331 for extraction.

[0039] See Figure 7 , the driving assembly 350 includes a driving motor 354 arranged on the mounting bracket 310. A driving gear 353 is mounted on the motor shaft of the driving motor 354. A driven gear 351 is rotatably arranged on the mounting bracket 310. The driven gear 351 is threadedly connected to the lifting screw 320. A transmission gear 352 is rotatably arranged on the mounting bracket 310. The driving gear 353, the transmission gear 352, and the driven gear 351 are sequentially meshed for transmission.

[0040] The working principle of the driving assembly 350 is that the driving motor 354 drives the driving gear 353 to rotate, so as to drive the driven gear 351 to rotate through the transmission gear 352. When the driven gear 351 rotates, under its threaded connection effect, it can drive the lifting screw 320 to move downward or upward relative to the mounting bracket 310. Its upward or downward movement is realized by the forward or reverse rotation of the driven gear 351.

[0041] See Figure 9 , a guide groove 321 is arranged on the lifting screw 320, and a guide block 313 inserted into the guide groove 321 is arranged on the mounting bracket 310. The cooperation between the guide block 313 and the guide groove 321 can restrict the lifting screw 320 to only move up and down relative to the mounting bracket 310 and cannot rotate, so as to realize the cooperation between the lifting screw 320 and the driven gear 351 to realize lifting.

[0042] See Figure 8 and Figure 10 , the front side of the installation cavity 311 is open, and convex ribs 312 are arranged on the left and right sides of the installation cavity 311. Slots 501 are arranged on the left and right sides of the extraction powder cup 50. The convex ribs 312 are inserted into the slots 501.

[0043] See Figures 13 to 15 , the extraction powder cup 50 includes an inner cup body 500 and an outer cup body 510. The outer cup body 510 is rotatably arranged on the inner cup body 500. The upper and lower sides of the inner cup body 500 are open. An extraction seat 530 is arranged inside the inner cup body 500. The extraction seat 530 is arranged to move up and down relative to the inner cup body 500. A liquid outlet pipe 550 is arranged at the bottom of the extraction seat 530. The extraction seat 530 is integrated with an extraction flow channel 540. The extraction flow channel 540 is communicated with the inner cup body 500 above the extraction seat 530. The extraction flow channel 540 is communicated with the liquid outlet pipe 550;

[0044] A lifting cup body 520 is arranged inside the outer cup body 510. The extraction base 530 is fixedly arranged on the lifting cup body 520. The lifting cup body 520 is threadedly connected to the inner cup body 500.

[0045] A lifting guide groove 511 is arranged inside the outer cup body 510. A lifting guide block 521 inserted into the lifting guide groove 511 is arranged on the lifting cup body 520.

[0046] Usage principle of the extraction powder cup 50: The movably arranged lifting cup body 520 cooperates with the extraction base 530, so that after brewing is completed, by rotating the outer cup body 510, the extraction base 530 can be driven to move upward, thereby pushing out the powder cake located inside the inner cup body 500, so as to solve the problem that it is difficult to take out the powder cake in the existing semi-automatic coffee machine after the extraction powder cup 50 is brewed.

[0047] Lifting principle of the extraction base 530: When the outer cup body 510 is rotated, through the cooperation of the lifting guide groove 511 and the lifting guide block 521, the lifting cup body 520 can be driven to rotate. At the same time, since the lifting cup body 520 is threadedly connected to the inner cup body 500. Therefore, when rotating, the lifting cup body 520 will move up and down relative to the outer cup body 510 and the inner cup body 500. During the movement, the lifting guide block 521 also moves relative to the lifting guide groove 511 accordingly, thereby driving the extraction base 530 fixedly arranged on the lifting cup body 520 to move up and down.

[0048] Furthermore, an opening 560 is arranged at the bottom of the outer cup body 510. The liquid outlet pipe 550 is located inside the opening 560.

[0049] See Figure 2 , the grinding component 20 includes a grinder 210. The input end of the grinder 210 is connected to a grinding bin 220. The output end of the grinder 210 is connected to a powder delivery pipe 230.

[0050] In the description of the present invention, it should be understood that the orientation or positional relationship indicated by the terms "center", "longitudinal", "transverse", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", etc. is based on the orientation or positional relationship shown in the drawings. It is only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, so it cannot be understood as a limitation to the present invention. The terms "first" and "second" are only used for descriptive purposes and cannot be understood as indicating or implying relative importance or implicitly specifying the quantity of the indicated technical features.

[0051] The foregoing has shown and described the basic principles, main features, and advantages of the present utility model. Those skilled in the art should understand that the present utility model is not limited by the above embodiments. What is described in the above embodiments and the specification only illustrates the principles of the present utility model. Without departing from the spirit and scope of the present utility model, the present utility model will have various changes and improvements, and all these changes and improvements fall within the scope of the present utility model claimed. The scope of protection claimed for the present utility model is defined by the appended claims and their equivalents.

Claims

1. A weighing module for a semi-automatic coffee machine, characterized in that: The weighing module (40) comprises a fixing frame (410) arranged in the machine body (10), a weighing sensor (420) being installed on the fixing frame (410), a suspension arm (430) being installed at the sensing end of the weighing sensor (420), a mounting platform (440) connected to the extraction powder cup (50) being arranged at one end of the suspension arm (430) away from the weighing sensor (420), the mounting platform (440) being detachably connected to the extraction powder cup (50), and a connecting port (441) for connecting the bean grinding assembly (20) and the extraction powder cup (50) being arranged on the mounting platform (440).

2. A weighing module for a semi-automatic coffee machine according to claim 1, characterized in that: The mounting platform (440) is magnetically connected to the extraction powder cup (50).

3. A weighing module for a semi-automatic coffee machine according to claim 1, characterized in that: A powder delivery pipe (60) is arranged in the communication port (441); when the extraction powder cup (50) is mounted on the mounting platform (440), the lower end of the powder delivery pipe (60) is inserted into the extraction powder cup (50).

4. A weighing module for a semi-automatic coffee machine according to claim 2, characterized in that: A plurality of first magnets (450) are arranged on the mounting platform (440), and a second magnet (70) is arranged on the extraction powder cup (50) at a position corresponding to the first magnet (450). When the extraction powder cup (50) is assembled to the mounting platform (440), the second magnet (70) is attracted and fixed to the first magnet (450).

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