Electric juicer having lifting blade mechanism

Abstract

An electric juicer having a lifting blade mechanism. The electric juicer comprises a juicer base (1) and a cup (4), wherein the juicer base (1) is provided with a lifting blade mechanism. The lifting blade mechanism comprises a blade holder assembly, an electric motor (2), and a connecting shaft (3) connected to the blade holder assembly, wherein the blade holder assembly is arranged in the cup (4); a first gear transmission portion and a second gear transmission portion are connected between an electric motor shaft (201) of the electric motor (2) and the connecting shaft (3); the electric motor shaft (201) drives the connecting shaft (3) to rotate by means of the first gear transmission portion, and the electric motor shaft (201) drives, by means of the second gear transmission portion, the connecting shaft (3) to reciprocate vertically while rotating; and the connecting shaft (3) is detachably connected to the blade holder assembly, and after the connecting shaft (3) is connected to the blade holder assembly, the connecting shaft (3) drives the blade holder assembly to synchronously rotate and ascend and descend.

Description

An electric juicer with a lifting blade mechanism Technical Field

[0001] This utility model relates to the field of juicing device technology, and more specifically, to an electric juicer with a lifting blade mechanism. Background Technology

[0002] Existing speed-changing components can output different speeds, but when applied to juicers or food processors, the blades need to make full contact with the food to achieve perfect pulverization and thorough mixing. While existing juicers or food processors have structures that allow the blades to move up and down while rotating, the blade assembly and the gearbox reduction assembly of the machine body are assembled as a single unit, resulting in a complex structure, high manufacturing costs, and inconvenience in disassembling the blade assembly for cleaning after use, leading to a poor user experience. In addition, some existing juicers or food processors have the blade assembly's rotation axis coaxial with the motor shaft. This structure occupies more vertical space, resulting in a higher vertical height of the juicer or food processor base. Sufficient vertical space is required during use, making it inconvenient to use and store in spaces with limited vertical space, further complicating the user experience.

[0003] Utility Model Content

[0004] To address at least one of the aforementioned problems, this utility model provides an electric juicer with a lifting blade mechanism, comprising: a base and a cup body. The base is equipped with a lifting blade mechanism, which includes a blade holder assembly, a motor, and a connecting shaft connected to the blade holder assembly. The blade holder assembly is housed within the cup body. A first gear transmission unit and a second gear transmission unit are connected between the motor shaft and the connecting shaft. The motor shaft drives the connecting shaft to rotate via the first gear transmission unit, and the motor shaft drives the connecting shaft to reciprocate and lift simultaneously while rotating via the second gear transmission unit. The connecting shaft and the blade holder assembly are detachably connected. After connection, the connecting shaft drives the blade holder assembly to rotate and lift synchronously. This utility model, through the motor, the first gear transmission unit, and the second gear transmission unit driving the blade holder assembly to rotate and reciprocate and lift simultaneously, results in more thorough food blending and juicing, higher work efficiency, and an easy-to-disassemble and clean blade holder assembly, providing a superior user experience.

[0005] Optionally, a motor gear is provided on the motor shaft, and a double gear is connected to one side of the motor gear. The double gear is driven to rotate by the motor gear. The first gear transmission part includes a meshing first gear and a second gear. The first gear is formed on the double gear, and the second gear is connected to the connecting shaft and rotates synchronously. The axis of the connecting shaft is parallel to and does not coincide with the axis of the motor shaft.

[0006] Optionally, the second gear transmission unit includes a meshing third gear, a fourth gear, and a rotating frame. The third gear is formed on the double gear. The motor gear meshes with either the first gear or the third gear. The second gear and the fourth gear are arranged on the same axis. The rotating frame is connected to the fourth gear and rotates synchronously. A guide is provided on the connecting shaft. A wave groove corresponding to the guide is provided on the rotating frame. The wave groove is annular. There is a speed difference between the second gear and the fourth gear, so that the guide slides along the wave groove.

[0007] Optionally, the guide is a guide post, which passes through the connecting shaft in a horizontal direction. Two wave grooves are symmetrically arranged, and the two ends of the guide slide into the two wave grooves respectively.

[0008] Optionally, a mounting sleeve is provided on the inner side of the second gear, the mounting sleeve rotates synchronously with the second gear, and a guide groove is provided on the mounting sleeve in the vertical direction to slide with the guide member.

[0009] Optionally, the number of teeth of the first gear is less than the number of teeth of the second gear, the number of teeth of the third gear is less than the number of teeth of the fourth gear, and the number of teeth of the motor gear is less than both the number of teeth of the first gear and the number of teeth of the third gear. The ratio of the number of teeth of the first gear to the number of teeth of the second gear is a first tooth ratio, and the ratio of the number of teeth of the third gear to the number of teeth of the fourth gear is a second tooth ratio. The first tooth ratio is greater than or less than the second tooth ratio.

[0010] Optionally, the tool holder assembly includes a frame and a blade connected to the frame. A rotating shaft is detachably connected to the frame, and the frame rotates and rises and falls synchronously after being connected to the rotating shaft. The end of the rotating shaft away from the frame is detachably connected to a connecting shaft, and the rotating shaft rotates and rises and falls synchronously after being connected to the connecting shaft.

[0011] Optionally, a first drive head is provided at the upper end of the rotating shaft, a first connecting sleeve corresponding to the first drive head is provided on the frame, a second drive head is provided at the upper end of the connecting shaft, and a second connecting sleeve corresponding to the second drive head is provided at the lower end of the rotating shaft.

[0012] Optionally, the cup body is provided with a mounting base, and a compression spring is provided between the mounting base and the second connecting sleeve.

[0013] Optionally, the upper part of the blade holder assembly is provided with a rotating positioning post, and the cup body is provided with a positioning groove corresponding to the rotating positioning post. The upper part of the rotating positioning post is rotatably placed in the positioning groove, and the upper part of the rotating positioning post can slide vertically in the positioning groove.

[0014] Compared to existing technologies, this electric juicer with a lifting blade mechanism uses a motor, a first gear transmission unit, and a second gear transmission unit to drive the blade assembly to rotate and reciprocate while lifting and lowering. This design features a simple structure and low production cost. The blades make more thorough contact with the food, resulting in more complete food mixing and juicing, leading to higher work efficiency. The blade assembly is also easy to disassemble and clean, providing a superior user experience. The connecting shaft's axis is parallel to but not coincident with the motor shaft's axis, making efficient use of the space within the machine base. The connecting shaft can be raised and lowered using the space on the motor side, reducing the longitudinal height of the machine base and facilitating use and storage in confined spaces, further enhancing the user experience. The guide members slide smoothly into two wave-shaped grooves at both ends, ensuring smooth sliding of the guide members and stable lifting and lowering of the connecting shaft and blade assembly. A compression spring is installed between the mounting base and the second connecting sleeve, assisting in the rotation and descent of the rotating shaft and preventing jamming. The upper part of the rotating positioning column rotates and is positioned within a positioning groove, and can slide vertically within the groove, further ensuring smoother rotation and lifting of the blade assembly. Attached Figure Description

[0015] Figure 1 is a perspective view of the electric juicer with lifting blade mechanism of this utility model;

[0016] Figure 2 is a cross-sectional view of the electric juicer with lifting blade mechanism of this utility model;

[0017] Figure 3 is an enlarged view of part A in Figure 2;

[0018] Figure 4 is an enlarged view of part B in Figure 2;

[0019] Figure 5 is an enlarged view of part C in Figure 2;

[0020] Figure 6 is a schematic diagram of the frame part of the electric juicer with lifting blade mechanism of this utility model;

[0021] Figure 7 is a schematic diagram of the double gear part in the electric juicer with lifting blade mechanism of this utility model;

[0022] Figure 8 is a structural schematic diagram of the mounting sleeve part in the electric juicer with lifting blade mechanism of this utility model;

[0023] Figure 9 is a structural schematic diagram of the rotating frame part in the electric juicer with lifting blade mechanism of this utility model;

[0024] Figure 10 is an exploded view of the rotating frame part in the electric juicer with lifting blade mechanism of this utility model;

[0025] Figure 11 is a structural schematic diagram of the first connecting sleeve of the electric juicer with lifting blade mechanism of this utility model;

[0026] Figure 12 is a schematic diagram of the structure of the first drive head of the electric juicer with lifting blade mechanism of this utility model;

[0027] The component names corresponding to the various labels in the figure are as follows: 1 is the base, 2 is the motor, 201 is the motor shaft, 202 is the motor gear, 3 is the connecting shaft, 301 is the guide, 302 is the second drive head, 4 is the cup body, 41 is the detachable top cover, 401 is the mounting base, 402 is the positioning groove, 5 is the double gear, 61 is the first gear, 62 is the second gear, 63 is the third gear, 64 is the fourth gear, 65 is the rotating frame, 651 is the wave groove, 652 is the first rotating frame, 653 is the second rotating frame, 654 is the third rotating frame, 66 is the mounting sleeve, 661 is the guide groove, 71 is the frame body, 711 is the first connecting sleeve, 7111 is the limiting protrusion, 72 is the blade, 73 is the rotating shaft, 731 is the first drive head, 7311 is the limiting slot, 732 is the second connecting sleeve, 8 is the compression spring, 9 is the rotating positioning column, and 10 is the bearing. Detailed Implementation

[0028] To make the above-mentioned objectives, features and advantages of this utility model more apparent and understandable, the specific embodiments of this utility model will be described in detail below with reference to the accompanying drawings.

[0029] In the description of this utility model, it should be understood that the terms "upper" and "lower" indicate the orientation or positional relationship based on the orientation or positional relationship when the product is in normal use.

[0030] The terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include at least one of that feature.

[0031] Referring to Figures 1-12, this utility model embodiment provides an electric juicer with a lifting blade mechanism, including: a base 1 and a cup body 4. The base 1 is provided with a lifting blade mechanism, which includes a blade holder assembly, a motor 2, and a connecting shaft 3 connected to the blade holder assembly. The blade holder assembly is placed inside the cup body 4. A first gear transmission part and a second gear transmission part are connected between the motor shaft 201 of the motor 2 and the connecting shaft 3. The gear transmission method is simple, reliable, and has low production cost. The motor shaft 201 drives the connecting shaft 3 to rotate through the first gear transmission part, and the motor shaft 201 drives the connecting shaft 3 to reciprocate and lift while rotating through the second gear transmission part. The connecting shaft 3 and the blade holder assembly are detachably connected. After the connecting shaft 3 and the blade holder assembly are connected, the connecting shaft 3 drives the blade holder assembly to rotate and lift synchronously. This utility model, through the motor, the first gear transmission part, and the second gear transmission part driving the blade holder assembly to rotate and reciprocate and lift, makes food mixing and juicing more thorough, improves work efficiency, and makes the blade holder assembly easy to disassemble and clean, resulting in a better user experience.

[0032] Referring to Figures 1-4, a motor gear 202 is provided on the motor shaft 201. A double gear 5 is connected to one side of the motor gear 202. The motor gear 202 drives the double gear 5 to rotate. The first gear transmission part includes a meshing first gear 61 and a second gear 62. The first gear 61 is formed on the double gear 5. The second gear 62 is connected to the connecting shaft 3 and rotates synchronously. The axis of the connecting shaft 3 is parallel to the axis of the motor shaft 201 and does not coincide. By making reasonable use of the space inside the base 1, the connecting shaft 3 can be raised and lowered using the space on the side of the motor, so that the longitudinal height of the base can be reduced, making it convenient for use and storage in places with limited longitudinal space, resulting in a better user experience.

[0033] Referring to Figures 2, 3, 4, 7, and 10, the second gear transmission unit includes a meshing third gear 63, a fourth gear 64, and a rotating frame 65. A bearing 10 is connected to the lower part of the rotating frame 65 to ensure smooth rotation. The third gear 63 is formed on the double gear 5. The first gear 61 and the third gear 63 are integrally formed. In this embodiment, the first gear 61 is formed on the upper side of the third gear 63 and is coaxially arranged. The motor gear 202 meshes with either the first gear 61 or the third gear 63. In this embodiment, the motor gear 202 meshes with the third gear 63. The second gear 62 and the fourth gear 64... Gear 64 is coaxially arranged, and rotating frame 65 is connected to and rotates synchronously with fourth gear 64. A guide 301 is provided on connecting shaft 3, and a wave groove 651 corresponding to guide 301 is provided on rotating frame 65. Wave groove 651 is annular. There is a speed difference between second gear 62 and fourth gear 64, so that guide 301 slides along wave groove 651. Rotating frame 65 includes a first rotating frame 652, a second rotating frame 653 and a third rotating frame 654 spliced ​​together. Wave groove 651 is formed between the first rotating frame 652, the second rotating frame 653 and the third rotating frame 654.

[0034] Referring to Figures 2, 3, 7, and 8, the guide member 301 is a guide post that passes through the connecting shaft 3 in the horizontal direction. Two symmetrically arranged wave grooves 651 are provided. The two ends of the guide member 301 slide into the two wave grooves 651 respectively, so that the guide member 301 slides smoothly along the wave grooves 651, and the connecting shaft 3 and the tool holder assembly rise and fall smoothly. The inner side of the second gear 62 is provided with a mounting sleeve 66. The upper part of the mounting sleeve 66 is a regular polygon, specifically a regular hexagon. The inner side of the second gear 62 is provided with a regular polygonal groove corresponding to the upper part of the mounting sleeve 66, so that the mounting sleeve 66 and the second gear 62 rotate synchronously. The mounting sleeve 66 is provided with a guide groove 661 in the vertical direction that slides with the guide member 301, so that the guide member 301 slides up and down along the guide member 301.

[0035] Referring to Figure 1, the number of teeth of the first gear 61 is less than the number of teeth of the second gear 62, the number of teeth of the third gear 63 is less than the number of teeth of the fourth gear 64, and the number of teeth of the motor gear 202 is less than the number of teeth of both the first gear 61 and the third gear 63. The ratio of the number of teeth of the first gear 61 to the second gear 62 is the first tooth ratio, and the ratio of the number of teeth of the third gear 63 to the fourth gear 64 is the second tooth ratio. The first tooth ratio is greater than or less than the second tooth ratio, and the speed output of the motor gear 202 to the speed of the connecting shaft 3 can be reduced in three stages.

[0036] Referring to Figures 2, 3, 6 and 7, the blade assembly includes a frame 71 and blades 72 connected to the frame 71. The blades are arranged in two layers of different heights to facilitate chopping and stirring food of different heights in the cup. A rotating shaft 73 is detachably connected to the frame 71. After the frame 71 and the rotating shaft 73 are connected, they rotate and rise synchronously. The end of the rotating shaft 73 away from the frame 71 is detachably connected to a connecting shaft 3. After the rotating shaft 73 and the connecting shaft 3 are connected, they rotate and rise synchronously.

[0037] Referring to Figures 2, 4, 7, 11, and 12, a first drive head 731 is provided at the upper end of the rotating shaft 73, and a first connecting sleeve 711 corresponding to the first drive head 731 is provided on the frame 71. A limit protrusion 7111 is provided on the inner side of the first connecting sleeve 711, and a limit groove 7311 corresponding to the limit protrusion 7111 is provided on the first drive head 731. A second drive head 302 is provided at the upper end of the connecting shaft 3, and a second connecting sleeve 732 corresponding to the second drive head 302 is provided at the lower end of the rotating shaft 73. The sleeve structure of the second drive head 302 and the second connecting sleeve 732 is similar to the sleeve structure of the first drive head and the first connecting sleeve 711. In this embodiment, the number of teeth and the rotational speed of the relevant gears are: the motor shaft speed is 25000 r / min. The motor gear has 12 teeth; the double gear has 15 teeth for the first gear and 16 teeth for the third gear; the second gear has 28 teeth, so the second gear's speed is approximately 10045 r / min; the fourth gear has 30 teeth, so the fourth gear's speed is approximately 10000 r / min; the speed difference between the second and fourth gears is approximately 10045 - 1000 ≈ 45 r / min, therefore the connecting shaft 3 and the rotating shaft 73 have a speed of 10000 r / min and an up-and-down cyclic motion frequency of 45 r / min; a mounting base 401 is provided on the cup body 4, and a compression spring 8 is provided between the mounting base 401 and the second connecting sleeve 732. The compression spring 8 assists in driving the rotating shaft 73 to rotate and descend, avoiding the problem of the rotating shaft 73 getting stuck and unable to descend.

[0038] Referring to Figures 2, 5, and 6, a rotating positioning post 9 is provided on the upper part of the blade holder assembly, and a positioning groove 402 corresponding to the rotating positioning post 9 is provided on the cup body 4. The positioning groove 402 is located on the detachable upper cover 41 of the cup body 4. The upper part of the rotating positioning post 9 is rotated and placed in the positioning groove 402, and the upper part of the rotating positioning post 9 can slide vertically in the positioning groove 402, so that the movement of the blade holder assembly while rotating and rising and falling is more stable.

[0039] This utility model relates to an electric juicer with a lifting blade mechanism. The blade assembly is driven by a motor, a first gear transmission unit, and a second gear transmission unit, which rotate and reciprocate in a lifting motion. The structure is simple and production cost is low. The blades make more thorough contact with the food, resulting in more complete mixing and juicing, higher work efficiency, and the blade assembly is easy to disassemble and clean, providing a better user experience. The axis of the connecting shaft is parallel to but not coincident with the axis of the motor shaft, making efficient use of the space within the machine base. The connecting shaft can be raised and lowered using the space on the motor side, reducing the longitudinal height of the machine base and facilitating use and storage in spaces with limited longitudinal space, further enhancing the user experience. The guide members slide smoothly into two corrugated grooves at both ends, ensuring smooth sliding of the guide members and smooth lifting of the connecting shaft and blade assembly. A compression spring is installed between the mounting base and the second connecting sleeve, assisting in the rotation and descent of the rotating shaft and preventing jamming. The upper part of the rotating positioning column is rotatably positioned within a positioning groove and can slide vertically within the groove, making the lifting and descent of the blade assembly even smoother.

[0040] The above description is only a preferred embodiment of the present utility model. It should be noted that for those skilled in the art, several improvements and modifications can be made without departing from the technical principles of the present utility model, and these improvements and modifications should also be considered within the protection scope of the present utility model.

Claims

1. An electric juicer with a lifting blade mechanism, characterized in that, include: The machine base (1) and the cup body (4) are provided. The machine base (1) is provided with a lifting knife mechanism. The lifting knife mechanism includes a knife holder assembly, a motor (2) and a connecting shaft (3) connected to the knife holder assembly. The knife holder assembly is placed inside the cup body (4). A first gear transmission part and a second gear transmission part are connected between the motor shaft (201) of the motor (2) and the connecting shaft (3). The motor shaft (201) drives the connecting shaft (3) to rotate through the first gear transmission part. The motor shaft (201) drives the connecting shaft (3) to reciprocate and lift while rotating through the second gear transmission part. The connecting shaft (3) and the knife holder assembly are detachably connected. After the connecting shaft (3) and the knife holder assembly are connected, the connecting shaft (3) drives the knife holder assembly to rotate and lift synchronously.

2. The electric juicer with lifting blade mechanism as described in claim 1, characterized in that, A motor gear (202) is provided on the motor shaft (201). A double gear (5) is connected to one side of the motor gear (202). The double gear (5) is driven to rotate by the motor gear (202). The first gear transmission part includes a meshing first gear (61) and a second gear (62). The first gear (61) is formed on the double gear (5). The second gear (62) is connected to the connecting shaft (3) and rotates synchronously. The axis of the connecting shaft (3) is parallel to and does not coincide with the axis of the motor shaft (201).

3. The electric juicer with lifting blade mechanism as described in claim 2, characterized in that, The second gear transmission unit includes a meshing third gear (63), a fourth gear (64), and a rotating frame (65). The third gear (63) is formed on the double gear (5). The motor gear (202) meshes with the first gear (61) or the third gear (63). The second gear (62) and the fourth gear (64) are arranged on the same axis. The rotating frame (65) is connected to the fourth gear (64) and rotates synchronously. A guide (301) is provided on the connecting shaft (3). A wave groove (651) corresponding to the guide (301) is provided on the rotating frame (65). The wave groove (651) is annular. There is a speed difference between the second gear (62) and the fourth gear (64) so ​​that the guide (301) slides along the wave groove (651).

4. The electric juicer with lifting blade mechanism as described in claim 3, characterized in that, The guide member (301) is a guide post. The guide member (301) passes through the connecting shaft (3) in the horizontal direction. Two wave grooves (651) are symmetrically arranged. The two ends of the guide member (301) slide into the two wave grooves (651) respectively.

5. The electric juicer with lifting blade mechanism as described in claim 3, characterized in that, The second gear (62) is provided with an installation sleeve (66) on its inner side. The installation sleeve (66) rotates synchronously with the second gear (62). The installation sleeve (66) is provided with a guide groove (661) in the vertical direction that slides with the guide member (301).

6. The electric juicer with lifting blade mechanism as described in claim 3, characterized in that, The number of teeth of the first gear (61) is less than the number of teeth of the second gear (62), the number of teeth of the third gear (63) is less than the number of teeth of the fourth gear (64), and the number of teeth of the motor gear (202) is less than both the number of teeth of the first gear (61) and the number of teeth of the third gear (63). The ratio of the number of teeth of the first gear (61) to the second gear (62) is a first tooth ratio, and the ratio of the number of teeth of the third gear (63) to the fourth gear (64) is a second tooth ratio. The first tooth ratio is greater than or less than the second tooth ratio.

7. The electric juicer with lifting blade mechanism as described in claim 3, characterized in that, The tool holder assembly includes a frame (71) and a blade (72) connected to the frame (71). A rotating shaft (73) is detachably connected to the frame (71). The frame (71) and the rotating shaft (73) rotate and rise synchronously after being connected. One end of the rotating shaft (73) away from the frame (71) is detachably connected to the connecting shaft (3). The rotating shaft (73) and the connecting shaft (3) rotate and rise synchronously after being connected.

8. The electric juicer with lifting blade mechanism as described in claim 7, characterized in that, The upper end of the rotating shaft (73) is provided with a first driving head (731), the frame (71) is provided with a first connecting sleeve (711) corresponding to the first driving head (731), the upper end of the connecting shaft (3) is provided with a second driving head (302), and the lower end of the rotating shaft (73) is provided with a second connecting sleeve (732) corresponding to the second driving head (302).

9. The electric juicer with lifting blade mechanism as described in claim 8, characterized in that, A mounting base (401) is provided on the cup body (4), and a compression spring (8) is provided between the mounting base (401) and the second connecting sleeve (732).

10. The electric juicer with a lifting blade mechanism as described in any one of claims 1-9, characterized in that, The upper part of the blade holder assembly is provided with a rotating positioning column (9), and the cup body (4) is provided with a positioning groove (402) corresponding to the rotating positioning column (9). The upper part of the rotating positioning column (9) is rotated and placed in the positioning groove (402), and the upper part of the rotating positioning column (9) can slide vertically in the positioning groove (402).

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