Small household meat grinder with cleaning mechanism

Abstract

The utility model relates to a small-sized household meat mincer with a cleaning mechanism, which comprises a mincing cup, a machine body shell, a cutter, a motor and an electric control module, the mincing cup is detachably connected with the machine body shell, the motor is fixedly arranged in the machine body shell, the motor is connected with the electric control module, an output shaft of the motor is connected with the cutter, and the machine body shell comprises an upper shell and a lower shell. The upper shell is fixedly connected with a handle, the upper end of the handle is connected with the upper shell in a closed mode, the handle is hollow, the lower end of the handle penetrates out of the lower shell, a plurality of round water leakage holes are formed in the bottom end of the handle, a water inlet connecting pipe is arranged close to the lower end of the handle and fixedly connected with the handle, and a spraying mechanism is arranged at the position, close to the water inlet connecting pipe, in the handle. The spraying mechanism comprises an electromagnetic valve which is connected with a water inlet connecting pipe through a conveying pipeline; a coil of the electromagnetic valve is electrically connected with the electric control module; a water outlet is formed in the bottom of the mincing cup, and a piston is arranged at the water outlet. Electric cleaning of the cutter and the mincing cup is achieved.

Description

Technical Field

[0001] This utility model relates to the field of household kitchenware technology, specifically to a small household meat grinder with a cleaning mechanism. Background Technology

[0002] Existing small household meat grinders mainly consist of a shell, a grinding cup, a motor, blades, and an electronic control module. During operation, the motor rotates at high speed, driving the blades to cut and grind the food. Food residue will remain on the grinding cup and blades during operation, requiring cleaning to ensure hygiene for the next use.

[0003] Cleaning the shredder cup is relatively simple. However, the blades are quite sharp, and currently available blades require manual cleaning during the cleaning process, which involves direct contact with the blades and carries a higher risk of injury. Furthermore, some users may use improper cleaning tools or methods to thoroughly clean the blades, such as vigorously scrubbing them with steel wool. This can not only damage the surface coating of the blades, reducing their rust resistance, but may also cause nicks or deformation, affecting cutting performance and lifespan.

[0004] Therefore, there is an urgent need for a small household meat grinder with a cleaning function to improve its convenience and safety. Summary of the Invention

[0005] This invention addresses the problem that existing small household meat grinders lack a cleaning function. It proposes a small household meat grinder with a cleaning mechanism. The handle features a hollow design, with a water inlet pipe connecting to a faucet. This, combined with an internal spray mechanism and drain hole, allows water to be injected into the grinding cup. Simultaneously, an electronic control module drives a motor to rotate the blades within the grinding cup, using centrifugal force and friction with the water to clean the blades.

[0006] To achieve the above objectives, this utility model proposes a small household meat grinder with a cleaning mechanism, including a grinding cup, a machine body shell, blades, a motor, and an electronic control module. The grinding cup is detachably connected to the machine body shell. A motor is fixedly installed inside the machine body shell and connected to the electronic control module. The motor's output shaft is connected to the blades. The machine body shell includes an upper shell and a lower shell. The upper shell is a hollow cylindrical structure, and the lower shell is a hollow frustum-shaped structure with an open lower end. A handle is fixedly connected to the upper shell, with its upper end closed to the upper shell. The handle is hollow inside. The lower end of the handle protrudes from the lower housing, and multiple circular drainage holes are provided at the bottom of the handle. A water inlet pipe is located near the lower end of the handle, and the water inlet pipe is fixedly connected to the handle. A spray mechanism is located inside the handle near the water inlet pipe. The spray mechanism includes a solenoid valve, a baffle, and a delivery pipe. The baffle is located at the upper end of the water inlet pipe, and the solenoid valve is fixed to the baffle. The coil of the solenoid valve is located at the upper end of the baffle, and the solenoid valve is connected to the water inlet pipe through the delivery pipe. The coil of the solenoid valve is electrically connected to the electronic control module. A drain outlet is provided at the bottom of the shredder cup, and a piston is located at the drain outlet.

[0007] Furthermore, the grinding cup is an inverted frustum-shaped structure with a hollow interior and an open top, and the inner wall of the grinding cup is smooth.

[0008] The shredder cup features an inverted frustum structure, facilitating water flow to clean the cup walls and allowing residue to flow away with the water after the piston is opened. Furthermore, the polished inner wall of the shredder cup further enhances the cleaning effect.

[0009] Furthermore, an upper connecting ring is provided at the upper end of the grinding cup. The upper connecting ring has a ring structure and the grinding cup is an integral structure. A lower connecting ring is provided at the lower end of the lower housing. The lower connecting ring has a ring structure and the lower housing is an integral structure. The upper connecting ring and the lower connecting ring are threaded together.

[0010] The upper and lower connecting rings facilitate the disassembly and securing of the grinding cup and the outer casing.

[0011] Furthermore, the handle has a ")" shaped structure, the baffle is fixedly connected to the handle, the handle has an opening, and a back cover is connected to the opening by screws;

[0012] The water inlet pipe includes a connector, a threaded shell, and an inner liner. The connector is a stepped cylindrical structure with a circular through hole. The connector and the threaded shell are an integral structure. The small-diameter end of the connector passes through the threaded shell and connects to the delivery pipe. The inner liner is a ring-shaped cylindrical structure with a flange. The flange of the inner liner is set in the inner cavity of the handle. The inner liner and the threaded shell are fixed by threads.

[0013] The rear cover allows for easy access to the spray system for maintenance and to install the water inlet pipe.

[0014] Furthermore, the electronic control module includes a controller, a driver chip, and a button unit. The button unit includes multiple buttons and is connected to the input terminal of the controller. The output terminal of the controller is connected to the driver chip. The driver chip is connected to the motor and the solenoid valve. The motor and the solenoid valve are connected to a power source through the driver chip. The power source includes an AC-DC module and a plug.

[0015] The AC-DC module is an AC220V to DC5V, DC12V, and DC3.3V converter. The electrical control module has a simple circuit structure, making it easy to control and maintain.

[0016] Furthermore, the upper housing is provided with multiple button holes corresponding to the button unit.

[0017] The button holes facilitate user operation.

[0018] Furthermore, the cutting tool includes a blade, multiple connecting brackets, and a fixing rod;

[0019] The output shaft of the motor and the fixing rod are fixed by a coupling. The fixing rod is cylindrical. The fixing rod and the upper housing are connected by a bearing. Multiple connecting frames are equidistantly arranged and fixed to the annular surface of the fixing rod. The connecting frame is a ring-shaped structure. Multiple blades are equidistantly arranged around the circumference of the connecting frame. The blades are crescent-shaped. The multiple blades are arranged at different heights of the connecting frame. The multiple blades are arranged along the same rotation direction. The blades and the connecting frame are fixedly connected.

[0020] The blades are designed in a crescent shape with curved edges, adapting to ingredients of varying hardness and size for improved cutting results. The staggered spiral arrangement ensures more even force distribution during grinding, resulting in better shredding. They are also easy to clean.

[0021] The beneficial effects of this utility model through the above technical solution are as follows:

[0022] This invention enables electric cleaning of the blades and grinding cup. The handle is designed as a hollow structure, combined with a water inlet pipe, spray mechanism, and drain hole. The lower housing and handle work together, and an electronic control module fills the grinding cup with water. The module then controls a motor to rotate the blades within the water-filled grinding cup, using centrifugal force and friction to clean both the blades and the grinding cup. This eliminates the need for manual cleaning, preventing users from touching sharp blades, reducing the risk of injury, improving cleaning efficiency, and protecting the blades. Furthermore, the grinding cup features an inverted frustum-shaped structure with a smooth inner wall and a drain outlet with a piston at the bottom. After cleaning, the piston is opened to facilitate the drainage of waste water. Attached Figure Description

[0023] Figure 1 This is one of the structural diagrams of a small household meat grinder with a cleaning mechanism according to this utility model;

[0024] Figure 2 for Figure 1 Enlarged view at point A;

[0025] Figure 3 This is a circuit diagram of a small household meat grinder with a cleaning mechanism according to the present invention.

[0026] Reference numerals: 1. Grinding cup, 2. Blade, 3. Motor, 4. Upper housing, 5. Lower housing, 6. Handle, 7. Circular drain hole, 8. Water inlet pipe, 801. Connector, 802. Threaded shell, 803. Inner liner, 9. Solenoid valve, 10. Baffle, 11. Delivery pipe, 12. Piston, 13. Upper connecting ring, 14. Lower connecting ring, 15. Rear cover, 16. Controller, 17. Driver chip, 18. Button unit, 201. Blade, 202. Connecting bracket, 203. Fixing rod. Detailed Implementation

[0027] Example 1

[0028] like Figures 1-3 As shown, a small household meat grinder with a cleaning mechanism includes a grinding cup 1, a machine body shell, a blade 2, a motor 3, and an electronic control module. The grinding cup 1 is detachably connected to the machine body shell. The motor 3 is fixedly installed inside the machine body shell and is connected to the electronic control module. The output shaft of the motor 3 is connected to the blade 2. The machine body shell includes an upper shell 4 and a lower shell 5. The upper shell 4 is a hollow cylindrical structure, and the lower shell 5 is a hollow frustum-shaped structure with an open lower end. A handle 6 is fixedly connected to the upper shell 4. The upper end of the handle 6 is closedly connected to the upper shell 4. The handle 6 is hollow inside, and its lower end protrudes through the lower shell 5. The bottom of the handle 6 has multiple circular drainage holes 7. A water inlet pipe 8 is located near the lower end of the handle 6 and is fixedly connected to the handle 6. A spray mechanism is located inside the handle 6 near the water inlet pipe 8. The spray mechanism includes a solenoid valve 9, a baffle 10, and a conveying pipe 11. The baffle 10 is located at the upper end of the water inlet pipe 8. The solenoid valve 9 is fixed to the baffle 10, and the coil of the solenoid valve 9 is located at the upper end of the baffle 10. The solenoid valve 9 is connected to the water inlet pipe 8 through the conveying pipe 11. The coil of the solenoid valve 9 is electrically connected to the electronic control module. A drain outlet is located at the bottom of the shredder cup 1, and a piston 12 is located at the drain outlet.

[0029] The grinding cup 1 is an inverted frustum-shaped structure with a hollow interior and an open top, and the inner wall of the grinding cup 1 is smooth.

[0030] The upper end of the grinding cup 1 is provided with an upper connecting ring 13, which is a ring structure. The upper connecting ring 13 and the grinding cup 1 are an integral structure. The lower end of the lower housing 5 is provided with a lower connecting ring 14, which is a ring structure. The lower connecting ring 14 and the lower housing 5 are an integral structure. The upper connecting ring 13 and the lower connecting ring 14 are threaded together.

[0031] The handle 6 has a ")" shaped structure. The baffle 10 is fixedly connected to the handle 6. The handle 6 has an opening, and the opening is connected to the back cover 15 by screws.

[0032] The water inlet pipe 8 includes a connector 801, a threaded shell 802, and an inner liner 803. The connector 801 is a stepped cylindrical structure with a circular through hole. The connector 801 and the threaded shell 802 are an integral structure. The small-diameter end of the connector 801 passes through the threaded shell 802 and connects to the conveying pipe 11. The inner liner 803 is a ring-shaped cylindrical structure with a flange. The flange of the inner liner 803 is set in the inner cavity of the handle 6. The inner liner 803 and the threaded shell 802 are fixed by threads.

[0033] The electronic control module includes a controller 16, a driver chip 17, and a button unit 18. The button unit 18 includes multiple buttons and is connected to the input terminal of the controller 16. The output terminal of the controller 16 is connected to the driver chip 17. The driver chip 17 is connected to the motor 3 and the solenoid valve 9. The motor 3 and the solenoid valve 9 are connected to a power source through the driver chip 17. The power source includes an AC-DC module and a plug.

[0034] The upper housing 4 has multiple button holes corresponding to the button unit 18.

[0035] The cutting tool 2 includes a blade 201, multiple connecting frames 202, and a fixing rod 203;

[0036] The output shaft of the motor 3 and the fixing rod 203 are fixed by a coupling. The fixing rod 203 is cylindrical. The fixing rod 203 and the upper housing 4 are connected by bearings. Multiple connecting frames 202 are equidistantly arranged and fixed to the annular surface of the fixing rod 203. The connecting frame 202 is a ring-shaped structure. Multiple blades 201 are equidistantly arranged around the circumference of the connecting frame 202. The blades 201 are crescent-shaped. Multiple blades 201 are arranged at different heights of the connecting frame 202. Multiple blades 201 are arranged along the same rotation direction. The blades 201 and the connecting frame 202 are fixedly connected.

[0037] In this embodiment, the button unit 18 includes buttons K1 to K4, where K1 is the start button, K2 is the stop button, and K3 and K4 are cleaning buttons. The controller 16 uses an STM32 microcontroller, and the driver chip 17 uses an L289N driver chip. The AC-DC module is an HLK-PM01 module manufactured by Shenzhen Hailingke Electronics Co., Ltd., used to convert the input AC220V current to DC5V, DC12V, and DC3.3V current. The HLK-PM01 module is connected to AC mains power via a plug. The blade 201 is made of 06Cr19Ni10 stainless steel.

[0038] During operation, the lower housing 5 and the grinding cup 1 are rotated and fixed. Food is placed inside the grinding cup 1. Press button K1 on button unit 18. Controller 16 controls motor 3 to rotate via drive chip 17. Motor 3 drives blade 2 to rotate, and blade 201 cuts and crushes the food. After operation, press button K2 on button unit 18. Controller 16 controls motor 3 to stop rotating, and the lower housing 5 and grinding cup 1 are rotated in the opposite direction to open, allowing the food inside the grinding cup 1 to be removed.

[0039] During cleaning, connect the faucet to connector 801 via a hose, press button K3 on button unit 18, and controller 16 controls the coil of solenoid valve 9 to be energized via drive chip 17, solenoid valve 9 opens. When the faucet is turned on, water flows from inlet pipe 8 through delivery pipe 11, through the valve port of solenoid valve 9, and then from the rear section of delivery pipe 11 into the lower end of handle 6, and flows into shredder cup 1 through circular drain hole 7.

[0040] The grinding cup 1 is usually transparent. Observe the water level; when the water level covers all blades 201, turn off the tap and disconnect the hose and water inlet pipe 8. Press button K4 on button unit 18; controller 16 will control solenoid valve 9 to reset. Press button K1 on button unit 18; motor 3 will rotate, driving blade 2 to rotate, which will be cleaned by water during rotation. After a period of time, press button K2 on button unit 18; motor 3 will stop rotating. Open piston 12 to drain the waste water.

[0041] Repeat the above steps until the grinding cup 1 and blade 2 are clean.

[0042] The embodiments described above are merely preferred embodiments of this utility model and are not intended to limit the scope of implementation of this utility model. Therefore, all equivalent changes or modifications made to the structure, features and principles described in the patent claims of this utility model should be included within the scope of the patent application of this utility model.

Claims

1. A small household meat grinder with a cleaning mechanism, comprising a grinding cup (1), a machine body shell, a cutter (2), a motor (3) and an electric control module, the grinding cup (1) is detachably connected with the machine body shell, the motor (3) is fixedly arranged in the machine body shell, the motor (3) is connected with the electric control module, and an output shaft of the motor (3) is connected with the cutter (2), characterized in that, The machine body shell includes an upper shell (4) and a lower shell (5), the upper shell (4) is a hollow cylindrical structure, the lower shell (5) is a hollow circular truncated cone structure with an open lower end, the upper shell (4) is fixedly connected with a handle (6), the upper end of the handle (6) is closedly connected with the upper shell (4), the handle (6) is hollow, the lower end of the handle (6) penetrates through the lower shell (5), a plurality of circular water leakage holes (7) are formed in the bottom end of the handle (6), a water inlet connector (8) is arranged near the lower end of the handle (6), the water inlet connector (8) is fixedly connected with the handle (6), a spraying mechanism is arranged in the handle (6) near the water inlet connector (8), the spraying mechanism includes an electromagnetic valve (9), a baffle (10) and a conveying pipeline (11), the baffle (10) is arranged on the upper end of the water inlet connector (8), the electromagnetic valve (9) is fixed with the baffle (10), the coil of the electromagnetic valve (9) is located on the upper end of the baffle (10), the electromagnetic valve (9) is connected with the water inlet connector (8) through the conveying pipeline (11); the coil of the electromagnetic valve (9) is electrically connected with an electric control module; a drain port is formed in the bottom of the crushing cup (1), and a piston (12) is arranged at the position of the drain port.

2. The small household meat grinder with a cleaning mechanism according to claim 1, characterized in that, The crushing cup (1) is a hollow inverted circular truncated cone structure with an open upper end, and the inner wall of the crushing cup (1) is smooth.

3. The small household meat grinder with a cleaning mechanism according to claim 2, characterized in that, An upper connecting ring (13) is arranged at the upper end of the crushing cup (1), the upper connecting ring (13) is a ring structure, the upper connecting ring (13) and the crushing cup (1) are an integrated structure, a lower connecting ring (14) is arranged at the lower end of the lower shell (5), the lower connecting ring (14) is a ring structure, the lower connecting ring (14) and the lower shell (5) are an integrated structure, and the upper connecting ring (13) and the lower connecting ring (14) are threadedly connected.

4. The small household meat grinder with a cleaning mechanism according to claim 3, characterized in that, The handle (6) is a ")" shaped structure, the baffle (10) is fixedly connected with the handle (6), the handle (6) is provided with an opening, and a rear cover (15) is connected with the opening through screws; The water inlet connector (8) includes a connecting head (801), a threaded shell (802) and an inner container (803), the connecting head (801) is a stepped cylindrical structure, the connecting head (801) is provided with a circular through hole, the connecting head (801) and the threaded shell (802) are an integrated structure, the small-diameter end of the connecting head (801) penetrates through the threaded shell (802) to connect the conveying pipeline (11), the inner container (803) is a circular annular cylindrical structure with a flange, the flange of the inner container (803) is arranged in the inner cavity of the handle (6), and the inner container (803) and the threaded shell (802) are fixedly connected through threads.

5. The compact household meat grinder with a cleaning mechanism according to claim 1, characterized in that, The electric control module comprises a controller (16), a driving chip (17) and a key unit (18), the key unit (18) comprises a plurality of keys, the key unit (18) is connected to the input end of the controller (16), the output end of the controller (16) is connected to the driving chip (17), the driving chip (17) is connected to the motor (3) and the electromagnetic valve (9), the motor (3) and the electromagnetic valve (9) are connected with a power supply through the driving chip (17), and the power supply comprises an AC-DC module and a plug.

6. The small household meat grinder with a cleaning mechanism according to claim 5, characterized in that, A plurality of key holes are arranged on the upper shell (4) corresponding to the key unit (18).

7. The compact household meat grinder with a cleaning mechanism according to claim 1, characterized in that, The cutter (2) comprises a blade (201), a plurality of connecting frames (202) and a fixing rod (203); The output shaft of the motor (3) and the fixing rod (203) are fixed through a shaft coupling, the fixing rod (203) is a cylinder, the fixing rod (203) and the upper shell (4) are connected through a bearing, the plurality of connecting frames (202) are equidistantly arranged and fixed with the annular surface of the fixing rod (203), the connecting frame (202) is a circular ring structure, a plurality of blades (201) are equidistantly arranged on the circumference of the connecting frame (202), the blade (201) is crescent-shaped, the plurality of blades (201) are arranged at different heights of the connecting frame (202), the plurality of blades (201) are arranged in the same rotation direction, and the blade (201) and the connecting frame (202) are fixedly connected.

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