Meat stirrer with stirring blades convenient to replace

By employing a design that uses a threaded shaft to rotate and screw in a spiral feed rod and a locking nut in the meat grinder, combined with an electric push rod system, the problems of complex replacement and difficult cleaning of the mixing blades in traditional meat grinders are solved, enabling convenient disassembly and cleaning, and improving safety and stability.

CN223913339UActive Publication Date: 2026-02-17HUIZHOU DENAI ELECTRIC TECH CO LTD
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Patent Information

Application Number
CN202520959471.9
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2025-05-15
Publication Date
2026-02-17
Estimated Expiration
2035-05-15

AI Technical Summary

Technical Problem

The process of replacing the mixing blades of traditional meat grinders is complicated and time-consuming, poses safety hazards, and is difficult to clean, which can easily lead to hygiene and safety issues.

Method used

A stirring blade is designed to be screwed onto a spiral feed rod via a threaded shaft. Combined with a locking nut and an electric push rod system, it enables easy disassembly and cleaning. The cutting direction of the stirring blade is opposite to the tightening direction of the threaded shaft to increase stability.

Benefits of technology

It enables convenient replacement and cleaning of the mixing blades, improves operational safety and equipment stability, simplifies maintenance procedures, reduces cleaning difficulty, and enhances user experience.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model relates to the technical field of food processing machines, in particular to a meat stirring machine with stirring blades convenient to replace, which comprises a machine seat frame, the machine seat frame is a bearing carrier of the meat stirring machine, and the machine seat frame is composed of a bottom plate and a support. The meat mincing machine comprises a machine base frame and further comprises a meat mincing barrel, a discharging barrel, a motor, a spiral feeding rod and the like, the meat mincing barrel is fixedly installed on a support of the machine base frame, the spiral feeding rod is rotatably installed in the meat mincing barrel, and the discharging barrel is installed and communicated with the discharging end of the meat mincing barrel and is a bucket barrel with the wide upper portion and the narrow lower portion. A motor is fixedly mounted on the side, close to the discharging barrel, of the meat mincing barrel through a mounting plate, and an output shaft of the motor is connected with the spiral feeding rod. According to the meat mincing machine, the spiral feeding rod and the stirring blades can be conveniently cleaned by simply unscrewing the discharging cover at the tail end of the meat mincing barrel, and in addition, the stirring blades can be easily detached from the spiral feeding rod through rotation to be replaced or cleaned.
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Description

Technical Field

[0001] This utility model relates to the field of food processing machine technology, and in particular to a meat grinder with easily replaceable mixing blades. Background Technology

[0002] In the food processing industry, especially in meat processing, meat grinders play a crucial role. The high-speed rotating blades of a meat grinder cut and mix meat to prepare the required minced meat. After a period of use, the blades of a traditional meat grinder will need to be replaced due to wear. However, the traditional design often makes this process time-consuming and complicated.

[0003] In traditional meat grinders, the mixing blades are usually fixed with bolts or clips. This requires tools and disassembly of multiple parts when replacing the blades, making the process complex and time-consuming, which seriously affects maintenance efficiency. In addition, during the blade replacement process, operators may come into contact with sharp parts, posing a safety hazard. Furthermore, the traditional complex mixing blades are quite difficult to clean after disassembly, and food residue is easily left behind. These residues become a breeding ground for bacteria, posing a threat to hygiene and safety. Therefore, it is necessary to design a meat grinder with easily replaceable mixing blades to address the shortcomings of existing technologies. Utility Model Content

[0004] In order to overcome the shortcomings of the prior art, this utility model provides a meat grinder with easy-to-replace stirring blades.

[0005] A meat grinder with easily replaceable mixing blades includes a base frame, which serves as the load-bearing carrier of the meat grinder. The base frame consists of a base plate and a support. It also includes a grinding drum, a feeding cylinder, a motor, a spiral feeding rod, mixing blades, a discharge cover, a support plate, and a cover plate. The grinding drum is fixedly mounted on the support of the base frame. The spiral feeding rod is rotatably mounted inside the grinding drum. The feeding cylinder is connected to the end of the grinding drum where the meat is discharged. The feeding cylinder is a bucket-shaped cylinder that is wider at the top and narrower at the bottom. The motor is fixedly mounted on the side of the grinding drum near the feeding cylinder via a mounting plate. The output shaft of the motor is connected to the spiral feeding rod. The spiral feeding rod has a detachable stirring blade mounted on its end away from the motor. The stirring blade has at least four blades fixedly attached to its circumferential angle. A threaded shaft is fixed on the rotation center of the end face of the stirring blade. The stirring blade is screwed into the spiral feeding rod by the thread. The end of the meat grinder away from the motor is the meat grinder outlet, and its outer barrel wall has a mounting thread. The discharge cover is rotatably mounted on the meat grinder outlet of the meat grinder by the mounting thread. The discharge cover has densely packed through holes. A support plate is fixedly mounted on the outer barrel of the meat grinder by a fixing ring. A cover plate is rotatably mounted on the support plate by a rotating shaft.

[0006] Optionally, the cutting direction of the blade of the stirring blade is opposite to the tightening direction of the threaded shaft, and a locking nut is fixed on the end face of the stirring blade away from the threaded shaft. The outer surface of the locking nut has a texture that facilitates tightening, and the interior of the locking nut is a hexagonal threaded groove.

[0007] Optionally, buffer pads are provided at the four corners of the base plate edge of the machine base frame. The buffer pads are made of rubber material. The machine base frame elastically supports the entire meat grinder through the buffer pads, reducing the vibration of the machine base frame during meat grinding.

[0008] Optionally, a handle is fixed at the end of the cover plate away from the rotating shaft, and the handle facilitates the opening and closing of the cover plate on the feeding cylinder for adding material.

[0009] Optionally, it also includes an electric push rod and a drain plate. The electric push rod is fixedly installed on the top surface of the cover plate. The push rod of the electric push rod faces downward and slides through the cover plate. The drain plate is fixed on the push rod of the electric push rod and is slidably embedded in the bottom surface of the cover plate.

[0010] Optionally, it also includes a limiting plate, with two limiting plates fixedly attached to the top surface of the support plate. The two limiting plates are vertically distributed on both sides of the rotating shaft of the cover plate, and the limiting plates are used to limit the rotation of the cover plate within a certain angle.

[0011] Optionally, the top surface of the support plate is provided with a fastening element near the two limiting plates. The fastening element includes a wedge block, a guide rod and a spring. Multiple guide rods are fixed on the support plate. A wedge block is slidably installed on the guide rod. A spring is provided on the guide rod between the wedge block and the support plate. A slot for matching the wedge block is opened on the cover plate.

[0012] Optionally, it also includes an electric push rod two and contact rods. The electric push rod two is fixedly installed on the top surface of the support plate. Two contact rods are vertically fixed to the push rod of the electric push rod two. The two contact rods are respectively located above the two wedge blocks and are in contact with each other.

[0013] The beneficial effects of this utility model are:

[0014] 1. This utility model allows for easy cleaning of the spiral feed rod and mixing blades by simply unscrewing the discharge cap at the end of the meat grinder. In addition, the mixing blades can be easily removed from the spiral feed rod for replacement or cleaning by rotating them.

[0015] 2. The cutting direction of the stirring blade of this utility model is opposite to the tightening direction of the threaded shaft, so that during the meat mixing process, the reaction force on the stirring blade will make it more firmly fixed on the spiral feeding rod, increasing the stability and safety of the stirring blade in easy disassembly and assembly.

[0016] 3. This utility model can also automatically unclog the discharge cylinder when it is blocked by the electric push rod one and the unblocking disc; in conjunction with the electric push rod two and the contact rod system, it can automatically release the cover plate's latch lock, improving the overall ease of operation and user experience of the equipment. Attached Figure Description

[0017] Figure 1 This is a three-dimensional structural diagram of the present invention.

[0018] Figure 2 This is a schematic diagram of the components of this utility model, including the machine base frame, buffer pad, meat grinder, and feeding cylinder.

[0019] Figure 3 This is an exploded view of the meat grinder, spiral feeding rod, stirring blades, and blade discharge cover of this utility model.

[0020] Figure 4 This diagram shows the connection relationship between the support plate, fixing ring, cover plate, and upright electric push rod of this utility model.

[0021] Figure 5 This is a schematic diagram of the components of this utility model, including the cover plate, wedge block, guide rod, and limiting plate.

[0022] Figure 6 This is a three-dimensional structural diagram of the blade, threaded shaft, and locking nut of this utility model.

[0023] Explanation of reference numerals in the attached drawings: 1: base frame, 101: buffer pad, 2: meat grinder, 3: feeding cylinder, 4: motor, 41: mounting plate, 5: spiral feeding rod, 6: mixing blade, 61: blade, 62: threaded shaft, 63: locking nut, 7: discharge cover, 71: mounting thread, 8: support plate, 81: retaining ring, 9: cover plate, 91: rotating shaft, 10: handle, 11: electric push rod one, 111: unblocking disc, 12: wedge block, 13: guide rod, 14: spring, 15: limit plate, 16: electric push rod two, 17: contact rod. Detailed Implementation

[0024] The embodiments of this utility model will be described below with reference to the accompanying drawings.

[0025] A meat grinder with easily replaceable mixing blades, such as Figures 1-6As shown, the machine includes a base frame 1, which serves as the load-bearing carrier for the meat grinder. The base frame 1 consists of a base plate and a support. It also includes a grinding drum 2, a feeding cylinder 3, a motor 4, a spiral feeding rod 5, stirring blades 6, a discharge cover 7, a support plate 8, and a cover plate 9. The grinding drum 2 is fixedly mounted on the support of the base frame 1. The spiral feeding rod 5 is rotatably mounted inside the grinding drum 2. The feeding cylinder 3 is connected to the feeding end of the grinding drum 2. The feeding cylinder 3 is a bucket-shaped cylinder, wider at the top and narrower at the bottom. The motor 4 is fixedly mounted on the side of the grinding drum 2 near the feeding cylinder 3 via a mounting plate 41. The output shaft of the motor 4 is connected to the spiral feeding rod 5. The stirring blades 6 are detachably mounted on the end of the spiral feeding rod 5 away from the motor 4. Four blades 61 are circumferentially inclined and fixed to the stirring blades. A threaded shaft 62 is fixed on the rotation center of the end face of blade 6. The stirring blade 6 is screwed into the spiral feed rod 5 by the thread. The end of the meat grinder 2 away from the motor 4 is the meat grinder outlet, and its outer barrel wall is provided with mounting threads 71. The discharge cover 7 is rotatably installed at the meat grinder outlet of the meat grinder 2 by the mounting threads 71. The discharge cover 7 is densely provided with through holes. A support plate 8 is fixedly installed on the outer barrel of the meat grinder 2 by a fixing ring 81. A cover plate 9 is rotatably installed on the support plate 8 by a rotating shaft 91. The cover plate 9 fits and covers the feed cylinder 3 to reduce the entry of dust and other foreign objects into the meat grinder and cause contamination. By unscrewing the discharge cover 7, it is convenient to clean the spiral feed rod 5 and stirring blade 6 after use. At the same time, the stirring blade 6 can be easily removed and replaced from the spiral feed rod 5.

[0026] like Figure 3 and Figure 6 As shown, the cutting direction of the blade 61 of the stirring blade is opposite to the tightening direction of the threaded shaft 62. A locking nut 63 is fixed on the end face of the stirring blade 6 away from the threaded shaft 62. The outer surface of the locking nut 63 has textures that facilitate tightening. The inside of the locking nut 63 is a hexagonal threaded groove. By using a hexagonal screwdriver to tighten the locking nut 63, the stirring blade 6 can be easily screwed into the spiral feed rod 5. When the stirring blade 6 crushes the meat, the reverse force it receives will be consistent with the cutting direction of the blade 61, so that the stirring blade 6 can be more firmly fixed on the spiral feed rod 5 when the meat is being stirred, thus improving the stability of the stirring blade 6 installed on the spiral feed rod 5.

[0027] like Figure 2 As shown, buffer pads 101 are provided at the four corners of the bottom plate of the machine base frame 1. The buffer pads 101 are made of rubber. The machine base frame 1 uses the buffer pads 101 to elastically buffer and support the entire meat grinder, reducing the vibration of the machine base frame 1 during meat grinding and improving the stability and safety of the meat grinder. A handle 10 is fixed at the end of the cover plate 9 away from the rotating shaft 91. The handle 10 makes it easy to rotate on the feeding cylinder 3 to open and close the cover plate 9 for feeding.

[0028] like Figure 1 and Figure 4 As shown, it also includes an electric push rod 11 and a draining disc 111. The electric push rod 11 is fixedly installed on the top surface of the cover plate 9. The push rod of the electric push rod faces downward and slides through the cover plate 9. The draining disc 111 is fixed on the push rod of the electric push rod. The draining disc 111 is slidably embedded in the bottom surface of the cover plate 9. The push rod of the electric push rod 111 drives the draining disc 111 to extend into the feeding cylinder 3, which can press down and unclog the meat that is blocked in the feeding cylinder 3.

[0029] When using this meat grinder, first open the cover plate 9 by turning the handle 10, and put the meat to be ground into the feeding drum 3. Then close the cover plate 9 to reduce the entry of dust and other foreign objects into the meat grinder and cause contamination. After starting the motor 4, the output shaft of the motor 4 drives the spiral feeding rod 5 to rotate. The threaded structure on the spiral feeding rod 5 will gradually push the meat towards the mixing blades 6 deep inside the meat grinding drum 2. During the meat grinding process, the mixing blades 6 installed at the end of the spiral feeding rod 5 begin to play their role. The mixing blades 6 rotate synchronously with the spiral feeding rod 5, so that the meat pushed to the discharge cover 7 is cut and crushed by the mixing blades 6. The cutting direction of the blades 61 is opposite to the tightening direction of the threaded shaft 62. The reverse force during meat grinding will make the mixing blades 6 more stable. Fixed to the spiral feed rod 5, if the feed cylinder 3 becomes clogged, the unblocking disc 111 can be driven by the electric push rod 11 to extend into the feed cylinder 3 and press down to unblock the meat, ensuring a smooth and unobstructed meat grinding process. As the spiral feed rod 5 continuously pushes the meat and continuously pushes it onto the discharge cover 7 in the meat grinding bucket 2, the meat scraps are squeezed out from the through hole of the discharge cover 7 after being fully crushed by the stirring blade 6. After the meat grinding operation is completed, simply unscrew the discharge cover 7 to easily clean the spiral feed rod 5 and the stirring blade 6. At the same time, since the stirring blade 6 is directly screwed into the spiral feed rod 5 by threads, the stirring blade 6 can be easily disassembled by using a tool to tighten the locking nut 63, which greatly facilitates daily maintenance and cleaning.

[0030] like Figure 1 and Figure 4 As shown, it also includes a limiting plate 15. Two limiting plates 15 are fixedly connected to the top surface of the support plate 8. The two limiting plates 15 are vertically distributed on both sides of the rotating shaft 91 of the cover plate 9. The limiting plates 15 are used to limit the rotation of the cover plate 9 within a certain angle.

[0031] like Figure 5As shown, the top surface of the support plate 8 is provided with a fastening element near the two limiting plates 15. The fastening element includes a wedge block 12, a guide rod 13 and a spring 14. Multiple guide rods 13 are fixed on the support plate 8. The wedge block 12 is slidably installed on the guide rod 13. A spring 14 is provided on the guide rod 13 between the wedge block 12 and the support plate 8. The cover plate 9 has a slot adapted to the wedge block 12. When the cover plate 9 is rotated to the limiting plate 15 and is limited, the wedge block 12 will be pressed, so that the wedge block 12 will bounce up under the action of the spring 14 and be fastened in the slot of the cover plate 9, thereby improving the stability of the cover plate 9 in use.

[0032] like Figure 5 As shown, it also includes an electric push rod 16 and a contact rod 17. The electric push rod 16 is fixedly installed on the top surface of the support plate 8. Two contact rods 17 are vertically fixed to the push rod of the electric push rod 16. The two contact rods 17 are located above the two wedge blocks 12 and are in contact with each other. The push rod of the electric push rod 16 retracts and drives the contact rods 17 to press down the wedge blocks 12, so that the wedge blocks 12 can automatically release the latch lock on the cover plate 9, improving the convenience of unlocking the cover plate 9.

[0033] When the cover plate 9 is rotated on the feed cylinder 3, the limiting plate 15 enables the cover plate 9 to be precisely aligned and closed onto the feed cylinder 3. When the cover plate 9 is correctly closed onto the feed cylinder 3, the cover plate 9 can overcome the elastic force of the spring 14 to press the wedge block 12, causing the wedge block 12 to move downward under the guidance of the guide rod 13. When the cover plate 9 is just rotated to the position limited by the limiting plate 15, the wedge block 12 bounces up under the action of the spring 14 and locks into the slot of the cover plate 9, thus achieving a stable lock on the cover plate 9. When the cover plate 9 needs to be rotated again, the electric push rod 16 is activated. The electric push rod 16 pushes the wedge block 12 downward through the push rod, so that the wedge block 12 can quickly release the lock on the cover plate 9, improving the convenience of using the cover plate 9.

[0034] The above embodiments are merely preferred embodiments of the present utility model and are not intended to limit the scope of the present utility model. Therefore, all equivalent changes made based on the content described in the claims of the present utility model should be included within the scope of the claims of the present utility model.

Claims

1. A meat grinder with a blade that is easy to replace, comprising a base frame (1), the base frame (1) having a bottom plate and a support; characterized in that It also includes a meat grinder barrel (2), a discharge cylinder (3), a motor (4), a spiral feeding rod (5), a stirring blade (6), a discharge cover (7), a support plate (8) and a cover plate (9), the support of the base frame (1) is fixedly installed with the meat grinder barrel (2), the inside of the meat grinder barrel (2) is rotatably installed with the spiral feeding rod (5), one end of the meat grinder barrel (2) is installed with the discharge cylinder (3), the side of the meat grinder barrel (2) close to the discharge cylinder (3) is fixedly installed with the motor (4) through the mounting plate (41), the output shaft of the motor (4) is connected with the spiral feeding rod (5), the rod end of the spiral feeding rod (5) is installed with the stirring blade (6), the circumferential of the stirring blade (6) is obliquely fixedly connected with not less than four blades (61), the end face rotation center of the stirring blade (6) is fixedly provided with a threaded shaft (62), the stirring blade (6) is screwed into the spiral feeding rod (5) through the threaded rotation, one end of the meat grinder barrel (2) away from the motor (4) is a meat grinder outlet and its outer barrel wall is provided with a mounting thread (71), the discharge cover (7) is rotatably installed on the meat grinder barrel (2) through the mounting thread (71), a plurality of through holes are densely provided on the discharge cover (7), the outer barrel body of the meat grinder barrel (2) is fixedly installed with the support plate (8) through the fixing ring (81), the support plate (8) is rotatably installed with the cover plate (9) adapted to the discharge cylinder (3) through the rotating shaft (91).

2. The meat chopper according to claim 1, wherein, The cutting direction of the blade edge of the stirring blade (6) blade (61) is opposite to the tightening direction of the threaded shaft (62), the end face of the stirring blade (6) away from the threaded shaft (62) is fixedly provided with a locking nut (63).

3. The meat chopper according to claim 2, wherein, The four corners of the edge of the bottom plate of the base frame (1) are provided with a buffer pad (101), the buffer pad (101) is made of rubber material.

4. The meat chopper according to claim 3, wherein, The end of the cover plate (9) away from the rotating shaft (91) is fixedly provided with a handle (10).

5. The meat chopper according to claim 4, wherein, It also includes an electric push rod (11) and a dredging disc (111), the top surface of the cover plate (9) is fixedly installed with the electric push rod (11), the push rod of the electric push rod is downward and slidably penetrates the cover plate (9), the push rod of the electric push rod is fixedly provided with the dredging disc (111), the dredging disc (111) is slidably embedded in the bottom surface of the cover plate (9).

6. The meat chopper according to claim 5, wherein, It also includes a limiting plate (15), the top surface of the support plate (8) is fixedly connected with two limiting plates (15), the two limiting plates (15) are vertically distributed on the two sides of the rotating shaft (91) of the cover plate (9), the limiting plate (15) is used for limiting the rotation of the cover plate (9) within a certain angle.

7. The meat chopper according to claim 6, wherein, The top surface of the support plate (8) is provided with a buckle near the two limiting plates (15), the buckle comprises a wedge block (12), a guide rod (13) and a spring (14), a plurality of guide rods (13) are fixed on the support plate (8), the wedge block (12) is slidably installed on the guide rod (13), the spring (14) is arranged on the guide rod (13) between the wedge block (12) and the support plate (8), and the cover plate (9) is provided with a clamping groove matched with the wedge block (12).

8. The meat chopper according to claim 7, wherein, Further comprising an electric push rod two (16) and a contact rod (17), the top surface of the support plate (8) is fixedly installed with the electric push rod two (16), the push rod of the electric push rod two (16) is vertically and fixedly connected with two contact rods (17), and the two contact rods (17) are located above the two wedge blocks (12) and contact each other.