Household meat grinder

By designing upper and lower support points for the rotating shaft assembly in a household meat grinder, the problem of wobbling and wear between the meat grinder blade and the drive shaft is solved, thereby improving the service life and cutting efficiency of the meat grinder.

CN223681889UActive Publication Date: 2025-12-19ZHONGSHAN PERFECT ELECTRONICS CO LTD
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Patent Information

Application Number
CN202520107807.9
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2025-01-16
Publication Date
2025-12-19
Estimated Expiration
2035-01-16

AI Technical Summary

Technical Problem

When cutting tough materials, traditional household meat grinders are prone to wobbling between the grinding blade and the drive shaft, leading to wear.

Method used

Design a household meat grinder with support points at both the upper and lower ends of the rotating shaft assembly. By setting a through-shaft tube and connecting it to the drive shaft in the middle of the grinding bowl, the rotating shaft assembly is not easy to shake when cutting tough materials, thus avoiding wear.

Benefits of technology

This effectively avoids wear between the rotating shaft assembly and the through-shaft tube, improving the service life and cutting efficiency of the meat grinder.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model discloses a household meat grinder which comprises a base, a meat grinding bowl, a bowl cover and a meat grinding mechanism. The base is provided with a driver; the meat mincing bowl is detachably installed on the base and comprises a bowl bottom wall and a bowl side wall, a shaft penetrating pipe extending upwards is arranged in the middle of the bowl bottom wall, and the driver is connected with a transmission shaft extending upwards into the shaft penetrating pipe; the bowl cover covers the upper end of the meat mincing bowl; the meat mincing mechanism comprises a rotating shaft assembly and a meat mincing knife, the rotating shaft assembly comprises an outer sleeve part sleeving the shaft penetrating pipe, the meat mincing knife is fixed to the outer sleeve part, the upper end of the rotating shaft assembly is rotationally matched with the bowl cover, and the lower end of the rotating shaft assembly is connected with the transmission shaft. The upper end and the lower end of the rotating shaft assembly are both provided with supporting points, when a meat mincing knife of the meat mincing mechanism cuts materials with large toughness such as beef back straps and cartilages, the rotating shaft assembly is not prone to shaking, and abrasion between an outer sleeve part on the rotating shaft assembly and a shaft penetrating pipe can be avoided.
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Description

TECHNICAL FIELD

[0001] The utility model relates to kitchen home appliance technical field especially relates to a domestic meat grinder. BACKGROUND

[0002] Traditional family cuts meat stuffing is to use kitchen knife, and cutting meat time is long and loud, not only consumes physical strength and affects neighbor rest. Therefore, the market appears meat grinder, and the meat grinder is used for breaking meat, and is used for making meat stuffing, meat ball and other food.

[0003] The patent with the publication number CN 118454828 A discloses a domestic meat grinder, and the patent is referred to Figures 2-4 The convex wall 190 is arranged in the middle of the bowl body 19 of the meat grinder, the cutter barrel 41 of the meat cutting knife 40 is sleeved outside the convex wall 190, the spacing between the two parts is very small, and the cutter barrel 41 is only connected with the output shaft 313 of the motor 30, so that there is only one supporting point. When the meat cutting knife 42 of the meat cutting knife 40 cuts the material with greater toughness such as beef tendon and cartilage, the cutter barrel 41 is prone to shaking and causing wear between the cutter barrel 41 and the convex wall 190.

[0004] The utility model is made based on the situation. UTILITY MODEL CONTENTS

[0005] Therefore, the purpose of the utility model is to provide a domestic meat grinder, and the upper end and the lower end of the meat grinding mechanism of the meat grinder both have supporting points.

[0006] The technical scheme adopted by the utility model to solve the technical problem is:

[0007] A domestic meat grinder comprises:

[0008] A base is provided with a driver;

[0009] A meat bowl is detachably mounted on the base, and the meat bowl comprises a bowl bottom wall and a bowl side wall. The middle part of the bowl bottom wall is provided with an upwardly extending shaft penetrating pipe. The driver is connected with a transmission shaft extending upwardly into the shaft penetrating pipe;

[0010] A bowl cover is covered on the upper end of the meat bowl;

[0011] A meat grinding mechanism comprises a rotating shaft assembly and a meat cutting knife. The rotating shaft assembly comprises an outer sleeve part sleeved outside the shaft penetrating pipe. The meat cutting knife is fixed on the outer sleeve part. The upper end of the rotating shaft assembly is rotationally matched with the bowl cover. The lower end of the rotating shaft assembly is connected with the transmission shaft.

[0012] As a further optimization of the above scheme, the rotating shaft assembly comprises a knife shaft, the sleeve part is fixed on the knife shaft, and the lower end of the knife shaft is inserted into the shaft penetrating pipe and is connected with the transmission shaft.

[0013] As a further optimization of the above scheme, the middle part of the lower surface of the bowl cover is provided with a bushing, the bushing is provided with a receiving hole, the rotating shaft assembly further comprises a top rod fixed on the upper end of the knife shaft, and the upper end of the top rod is inserted into the receiving hole and rotationally matched with the bushing.

[0014] As a further optimization of the above scheme, the meat mincing knife comprises an upper blade fixed on the left part of the outer surface of the sleeve part and a lower blade arranged on the right part of the outer surface of the sleeve part, the upper blade is higher than the lower blade, and the outer surface of the sleeve part is provided with helical ribs extending from the back side of the lower blade to the cutting edge side of the upper blade.

[0015] As a further optimization of the above scheme, the outer surface of the sleeve part is further provided with a first axial rib corresponding to the upper blade and a second axial rib corresponding to the lower blade, the lower end of the first axial rib is located at the mounting position of the upper blade, and the lower end of the second axial rib is located at the mounting position of the lower blade.

[0016] As a further optimization of the above scheme, the bowl cover is provided with a feeding opening staggered with the rotating shaft assembly, and a decorative cover shielding the feeding opening is arranged on the feeding opening.

[0017] As a further optimization of the above scheme, the decorative cover is a box body, the main body of the decorative cover is embedded in the feeding opening, and the upper edge of the decorative cover is provided with an edge abutting on the bowl cover.

[0018] As a further optimization of the above scheme, the bottom of the decorative cover is provided with a water dripping hole.

[0019] The meat mincing mechanism has the advantages that: the upper end and the lower end of the rotating shaft assembly have support points, when the meat mincing knife of the meat mincing mechanism cuts materials with relatively high toughness such as beef shank and cartilage, the rotating shaft assembly is not prone to shaking, and wear between the sleeve part and the shaft penetrating pipe of the rotating shaft assembly can be avoided. BRIEF DESCRIPTION OF DRAWINGS

[0020] Figure 1 is a sectional view of the meat mincing mechanism;

[0021] Figure 2 is Figure 1 is an enlarged view of part A of the meat mincing mechanism;

[0022] Figure 3 is an exploded view of the meat mincing mechanism;

[0023] Figure 4 This is one of the three-dimensional diagrams of a meat grinder mechanism;

[0024] Figure 5 This is the second 3D diagram of a meat grinder. Detailed Implementation

[0025] The technical solution of this utility model will now be clearly and completely described with reference to the accompanying drawings.

[0026] It should be noted that all directional indicators (such as up, down, left, right, front, back, etc.) in this utility model are only used to explain the relative positional relationship and movement of the components in a specific posture (as shown in the attached figure). If the specific posture changes, the directional indicator will also change accordingly. Furthermore, descriptions involving "preferred," "second-preferred," etc., in this utility model are for descriptive purposes only and should not be construed as indicating or implying their relative importance or implicitly specifying the number of technical features indicated. Therefore, a feature defined as "preferred" or "second-preferred" may explicitly or implicitly include at least one of those features.

[0027] Reference Figures 1 to 5 This utility model discloses a household meat grinder, including a base 1, a meat grinding bowl 3, a bowl cover 5, and a meat grinding mechanism. The base 1 is equipped with a driver 2. The meat grinding bowl 3 is detachably mounted on the base 1. The meat grinding bowl 3 includes a bottom wall 31 and a side wall 32. A through-shaft tube 301 extending upwards is provided in the middle of the bottom wall 31. The driver 2 is connected to a drive shaft 4 extending upwards into the through-shaft tube 301. The bowl cover 5 covers the upper end of the meat grinding bowl 3. The meat grinding mechanism includes a rotating shaft assembly and a meat grinding blade 62. The rotating shaft assembly includes an outer sleeve 601 that fits over the through-shaft tube 301. The meat grinding blade 62 is fixed to the outer sleeve 601. The upper end of the rotating shaft assembly rotatably engages with the bowl cover 5, and the lower end of the rotating shaft assembly is connected to the drive shaft 4.

[0028] With this design, the upper and lower ends of the rotating shaft assembly have support points. When the meat grinder blade 62 of the meat grinder cuts tough materials such as beef tendon and cartilage, it is not easy for the rotating shaft assembly to shake, thus avoiding wear between the outer sleeve 601 and the shaft tube 301 on the rotating shaft assembly.

[0029] Reference Figure 2 and Figure 3 The rotating shaft assembly includes a cutter shaft 61, with an outer sleeve 601 fixed to the cutter shaft 61. The lower end of the cutter shaft 61 is inserted into the through-shaft tube 301 and connected to the drive shaft 4. A bushing 55 is provided in the middle of the lower surface of the bowl cover 5, and a receiving hole 551 is provided on the bushing 55. The rotating shaft assembly also includes a push rod 63 fixed to the upper end of the cutter shaft 61. The upper end of the push rod 63 is inserted into the receiving hole 551 and rotates with the bushing 55.

[0030] The driver 2 adopts a speed-adjustable motor, the output shaft of the motor is connected with the transmission shaft 4 through a shaft coupling or through a speed reducer. The transmission shaft 4 can be provided with a spline, and the lower end of the cutter shaft 61 can be provided with a spline hole matched with the upper end of the transmission shaft 4, so as to transmit torque between the two.

[0031] The bowl cover 5 and the meat mincing bowl 3 can adopt a matching structure of a clamping block and a circumferential clamping groove, or can adopt a threaded connection structure, so as to fix the bowl cover 5 on the meat mincing bowl 3.

[0032] The base 1 and the meat mincing bowl 3 can adopt a matching structure of a clamping block and a circumferential clamping groove, or can adopt a threaded connection structure, a magnetic attraction structure, etc., so as to fix the meat mincing bowl 3 on the meat mincing bowl 3.

[0033] Further, the meat mincing knife 62 includes an upper blade 621 fixed to the left part of the outer surface of the sleeve part 601 and a lower blade 622 arranged on the right part of the outer surface of the sleeve part 601, the upper blade 621 is higher than the lower blade 622, and the outer surface of the sleeve part 601 is provided with a spiral rib 602 extending from the back side of the lower blade 622 to the cutting edge side of the upper blade 621. With this design, when there is more meat in the meat mincing bowl 3, the upper blade 621 and the lower blade 622 can cut the meat at different height positions respectively, which is beneficial to chopping the meat; when there is less meat in the meat mincing bowl 3, during the rotation of the meat mincing mechanism, the lower blade 622 will cut the meat first, and after the lower blade 622 finishes cutting, under the stirring action of the spiral rib 602, a part of the meat can be guided to the cutting area of the upper blade 621 for second cutting. After the upper blade 621 finishes cutting, the meat will fall down under the action of gravity, and in the rotation cycle of the meat mincing mechanism, the meat can be cut by the lower blade 622 and the upper blade 621 again in each cycle, which is beneficial to chopping the meat.

[0034] Further, the outer surface of the sleeve part 601 is further provided with a first axial rib 603 corresponding to the upper blade 621 and a second axial rib 604 corresponding to the lower blade 622, the lower end of the first axial rib 603 is located at the mounting position of the upper blade 621, and the lower end of the second axial rib 604 is located at the mounting position of the lower blade 622. Under the action of the first axial rib 603 and the second axial rib 604, the meat close to the cutter shaft 61 can be further stirred, so that a part of the meat can move outward along the tangent direction of the first axial rib 603 and the second axial rib 604, and at the same time, under the limiting action of the inner side wall of the meat mincing bowl 3, a part of the meat will also be squeezed inward, so that the meat at different positions in the meat mincing bowl 3 can be continuously mixed and chopped by the upper blade 621 and the lower blade 622.

[0035] Further, the bowl cover 5 is provided with a feeding opening 503 which is staggered with the rotating shaft assembly, and a decorative cover 7 is installed at the feeding opening 503 to shield the feeding opening 503. Specifically, the decorative cover 7 is a box body, the main body of the decorative cover 7 is embedded in the feeding opening 503, and the upper edge of the decorative cover 7 is provided with an edge 71 which is supported on the bowl cover 5. With such a design, it is convenient to add meat, ingredients or seasonings into the meat bowl 3 through the feeding opening 503 during the operation of the meat grinder.

[0036] Further, the bottom of the decorative cover 7 is provided with a water dripping hole 72. When the meat grinder is used to make products such as meatballs and fish balls, sometimes it is necessary to add onion ginger water, liquid water or liquid seasonings into the products. At this time, the liquid additives can be injected into the decorative cover 7 and slowly added into the meat bowl 3 through the water dripping hole 72, so that the liquid additives and the meat can be fully mixed together.

[0037] The above is only the preferred embodiment of the present application, and does not limit the patent range of the present application. Any equivalent structural transformation, direct or indirect application in other related technical fields based on the inventive concept of the present application and the content of the present application specification and drawings are included in the patent protection range of the present application.

Claims

1. A household meat mincer, characterized in that, The application relates to a meat grinder, which comprises a base (1) provided with a driver (2), a meat grinding bowl (3) detachably mounted on the base (1), the meat grinding bowl (3) comprising a bowl bottom wall (31) and a bowl side wall (32), a middle portion of the bowl bottom wall (31) being provided with an upwardly extending penetrating shaft tube (301), the driver (2) being connected with a transmission shaft (4) extending upwardly into the penetrating shaft tube (301), a bowl cover (5) covering an upper end of the meat grinding bowl (3), a meat grinding mechanism comprising a rotating shaft assembly and a meat grinding knife (62), the rotating shaft assembly comprising an outer sleeve (601) sleeved outside the penetrating shaft tube (301), the meat grinding knife (62) being fixed on the outer sleeve (601), an upper end of the rotating shaft assembly being rotationally matched with the bowl cover (5), and a lower end of the rotating shaft assembly being connected with the transmission shaft (4). The rotating shaft assembly comprises a knife shaft (61), the outer sleeve (601) being fixed on the knife shaft (61), and a lower end of the knife shaft (61) being inserted into the penetrating shaft tube (301) and being insertedly connected with the transmission shaft (4). A middle portion of a lower surface of the bowl cover (5) is provided with a bushing (55), the bushing (55) being provided with an accommodating hole (551), the rotating shaft assembly further comprising a top rod (63) fixed on an upper end of the knife shaft (61), an upper end of the top rod (63) being inserted into the accommodating hole (551) and being rotationally matched with the bushing (55). The meat grinding knife (62) comprises an upper blade (621) fixed on a left portion of an outer surface of the outer sleeve (601) and a lower blade (622) arranged on a right portion of the outer surface of the outer sleeve (601), the upper blade (621) being higher than the lower blade (622), and the outer surface of the outer sleeve (601) being provided with helical ribs (602) extending from a back side of the lower blade (622) to a cutting edge side of the upper blade (621). The outer surface of the outer sleeve (601) is further provided with a first axial rib (603) corresponding to the upper blade (621) and a second axial rib (604) corresponding to the lower blade (622), a lower end of the first axial rib (603) being located at a mounting position of the upper blade (621), and a lower end of the second axial rib (604) being located at a mounting position of the lower blade (622).

2. A domestic meat mincer according to claim 1, characterised in that The bowl cover (5) is provided with a feeding opening (503) staggered with the rotating shaft assembly, and a decorative cover (7) is arranged at the feeding opening (503) to shield the feeding opening (503).

3. A domestic meat mincer according to claim 2, characterised in that The decorative cover (7) is a box body, a main body of the decorative cover (7) is embedded into the feeding opening (503), and an upper edge of the decorative cover (7) is provided with an edge (71) supported on the bowl cover (5).

4. A domestic meat mincer according to claim 1 or 2, characterised in that, A bottom portion of the decorative cover (7) is provided with a water dripping hole (72).

5. A domestic meat mincer according to claim 4, characterised in that ​ 6. A household meat mincer according to claim 1, characterized in that ​ 7. A domestic meat mincer according to claim 6, characterised in that ​ 8. A domestic meat mincer according to claim 7, characterised in that ​

Citation Information

Patent Citations

  • Meat grinder

    CN118454828A