Driving mechanism of food processor

Abstract

The utility model relates to a driving mechanism of a food processor. The device comprises a motor, a gear box, a screw, a transmission pipe and a connecting seat, the first end of the screw is in transmission connection with the gear box, the screw is provided with a threaded section and a transmission section, the connecting seat sleeves the threaded section and is in threaded fit with the threaded section, the transmission pipe sleeves the transmission section and is in transmission fit with the transmission section, and the inner end of the transmission pipe is rotationally connected to the connecting seat; a bearing is arranged between the inner end of the transmission pipe and the connecting base, the motor drives the gearbox to rotate, the gearbox rotates to drive the screw to rotate, the threaded section rotates to drive the connecting base to move in the axial direction of the screw, the connecting base moves to drive the transmission pipe to move in the axial direction of the screw, and meanwhile the transmission section rotates to drive the transmission pipe to rotate. The screw rod drives the transmission pipe to rotate and drives the transmission pipe to move in the axial direction through the connecting base, friction between the connecting base and the transmission pipe is effectively reduced through the bearing, the transmission pipe can rotate smoothly relative to the connecting base, noise is avoided, and the transmission pipe cannot be clamped.

Description

Technical Field

[0001] This utility model specifically relates to a drive mechanism for a food processing machine. Background Technology

[0002] The existing drive mechanism structure of food processing machines, such as the automatic juicer head disclosed in Chinese Patent No. CN205306711U, includes a machine head, a juice receiving cup, an upper juicing head, and a lower juicing head. The juice receiving cup is mounted on the machine head, the upper juicing head is mounted on the juice receiving cup, and the lower juicing head is movably mounted inside the juice receiving cup and located directly below the upper juicing head. The machine head includes a housing, a geared motor, and a screw. The geared motor is fixedly mounted inside the housing, and its output shaft is driven and axially slidingly connected to the screw. The screw is threadedly connected to the housing and extends into the juice receiving cup to connect with the lower juicing head. This automatic juicer, while ensuring that the geared motor does not move up and down during operation, uses a screw drive principle to control the lower juicing head to move closer to the upper juicing head to achieve fruit juicing. However, when the screw is threadedly connected to the housing, the housing is made of plastic, resulting in low thread precision. This leads to easy shaking and noise during screw drive. Therefore, the structure of the existing drive mechanism of food processing machines needs further improvement. Utility Model Content

[0003] The purpose of this invention is to provide a drive mechanism for a food processing machine that is less prone to shaking and produces less noise.

[0004] The above objectives are achieved in this way.

[0005] A drive mechanism for a food processing machine includes a motor, a gearbox, a screw, a transmission tube, and a connecting seat. The first end of the screw is connected to the gearbox for transmission. The screw has a threaded section and a transmission section. The connecting seat is sleeved on the threaded section and threadedly engaged with it. The transmission tube is sleeved on the transmission section and drivenly engaged with it. The inner end of the transmission tube is rotatably connected to the connecting seat. A bearing is provided between the inner end of the transmission tube and the connecting seat. The motor drives the gearbox to rotate, which in turn drives the screw to rotate. The rotation of the threaded section causes the connecting seat to move axially along the screw. The movement of the connecting seat causes the transmission tube to move axially along the screw. Simultaneously, the rotation of the transmission section causes the transmission tube to rotate.

[0006] The objective of this utility model can also be optimized by the following technical measures.

[0007] Preferably, the bearing is sleeved on the outer wall of the inner end of the transmission tube and fixed on the connecting seat.

[0008] Furthermore, the connecting seat is equipped with a connecting hook located outside the inner end of the transmission tube. The connecting hook hooks the bearing, thus securing the bearing and the inner end of the transmission tube to the connecting seat, preventing the connecting seat from separating from the transmission tube. The transmission tube moves axially together with the connecting seat. When the screw of this invention rotates forward, the connecting seat pushes the transmission tube axially. When the screw of this invention rotates in reverse, the connecting seat pulls the transmission tube in the opposite direction via the connecting hook.

[0009] The connecting seat is equipped with at least two connecting hooks, which are located on the outer side of the inner end of the transmission tube. A reinforcing connecting wall is provided between two adjacent connecting hooks, connecting the two hooks. The connecting hooks hook the bearing, thus securing the bearing and the inner end of the transmission tube to the connecting seat. This invention increases the strength of the connecting hooks by reinforcing the connecting wall, preventing the hooks from deforming outwards under stress.

[0010] Preferably, there are two bearings, namely a first bearing and a second bearing. A raised ring is provided on the outer wall of the inner end of the transmission tube to separate the first and second bearings. The first bearing is located between the connecting hook and the raised ring, and the second bearing is located between the raised ring and the connecting seat. The first and second bearings effectively reduce the friction between the connecting seat and the transmission tube, allowing the transmission tube to rotate smoothly and quietly relative to the connecting seat, preventing the transmission tube from jamming.

[0011] Furthermore, it also includes a housing, a first limit switch, a second limit switch, and a battery. The inner ends of the motor, gearbox, screw, first limit switch, second limit switch, battery, and transmission tube are disposed inside the housing. The housing has an opening for the outer end of the transmission tube to extend out. The first limit switch and the second limit switch are respectively disposed at the beginning and end of the travel of the connecting seat.

[0012] Furthermore, the connector is provided with a trigger top block for triggering the first limit switch and the second limit switch.

[0013] Furthermore, the inner wall of the housing is provided with a guide groove along the axial direction of the screw, and the trigger top block is slidably guided in the guide groove, which guides the trigger top block and the connecting seat to slide.

[0014] Preferably, the cross-section of the transmission section is non-cylindrical, and a non-cylindrical elongated hole is provided in the transmission tube corresponding to the transmission section. The cross-section of the non-cylindrical elongated hole is non-cylindrical. The transmission section is inserted into the non-cylindrical elongated hole, and the transmission section and the non-cylindrical elongated hole are in transmission cooperation. The rotation of the transmission section drives the rotation of the transmission tube, and the transmission section moves axially in the non-cylindrical elongated hole.

[0015] Preferably, the connecting seat is provided with a threaded hole, which is threadedly engaged with the threaded section.

[0016] The beneficial effects of this utility model are:

[0017] This invention adds a connecting seat and a bearing. The screw is threaded into the connecting seat, and the transmission tube is rotatably connected to the connecting seat. The transmission tube rotates relative to the connecting seat. The screw of this invention not only drives the transmission tube to rotate, but also drives the transmission tube to move along its axial direction through the connecting seat. The bearing effectively reduces the friction between the connecting seat and the transmission tube, making the transmission tube rotate smoothly and quietly relative to the connecting seat, and preventing the transmission tube from jamming. Attached Figure Description

[0018] Figure 1 A schematic diagram of the drive mechanism of a food processing machine, omitting the housing.

[0019] Figure 2 This is a cross-sectional view of the drive mechanism of the food processing machine according to Embodiment 1 of this utility model, omitting the machine casing.

[0020] Figure 3 This is a top view of the drive mechanism of the food processing machine according to Embodiment 1 of this utility model.

[0021] Figure 4 for Figure 3 Sectional view at point AA.

[0022] Figure 5 for Figure 3 Sectional view at point BB.

[0023] Figure 6 This is a schematic diagram of the connecting seat in Embodiment 1 of this utility model.

[0024] Figure 7 This is a partial cross-sectional view of the drive mechanism of the food processing machine according to Embodiment 1 of this utility model.

[0025] Figure 8 This is a partial cross-sectional view from another perspective of the drive mechanism of the food processing machine according to Embodiment 1 of this utility model.

[0026] Figure 9 This is an exploded view of the drive mechanism of the food processing machine according to Embodiment 1 of this utility model.

[0027] Figure 10 This is a cross-sectional view of an orange juicer.

[0028] Figure 11 This is an exploded view of the drive mechanism of the food processing machine according to Embodiment 2 of this utility model.

[0029] Figure 12 This is a schematic diagram of the connecting seat in Embodiment 2 of this utility model. Detailed Implementation

[0030] The present invention will be further described below with reference to the accompanying drawings and specific embodiments.

[0031] Example 1, as Figures 1 to 10 As shown, a drive mechanism for a food processing machine includes a housing 8, a control circuit board (not shown), a motor 7, a gearbox 6, a screw 1, a transmission tube 2, a first limit switch 51, a second limit switch 52, a battery 71, and a connecting seat 3. The inner ends of the motor 7, control circuit board, gearbox 6, screw 1, first limit switch 51, second limit switch 52, battery 71, and transmission tube 2 are disposed inside the housing 8. The first end 14 of the screw 1 is connected to the gearbox 6 for transmission. The screw 1 is provided with a threaded section 11 and a transmission section 12. The connecting seat 3 is provided with a threaded hole 33, which is threadedly engaged with the threaded section 11.

[0032] Among them, the battery 71 is electrically connected to the motor 7. The motor 7 drives the gearbox 6 to rotate. The rotation of the gearbox 6 drives the screw 1 to rotate. The rotation of the threaded section 11 drives the connecting seat 3 to move along the axial direction of the screw 1. The movement of the connecting seat 3 drives the transmission tube 2 to move along the axial direction of the screw 1. At the same time, the rotation of the transmission section 12 drives the transmission tube 2 to rotate.

[0033] The inner end of the transmission tube 2 is rotatably connected to the connecting seat 3. A bearing 4 is provided between the inner end of the transmission tube 2 and the connecting seat 3. The bearing 4 is sleeved on the outer wall of the inner end of the transmission tube 2 and fixed to the connecting seat 3.

[0034] The connecting seat 3 is provided with at least two connecting hooks 31, which are located on the outer side of the inner end of the transmission tube 2. A reinforcing connecting wall 34 is provided between two adjacent connecting hooks, connecting the two hooks. The connecting hooks 31 hook the bearing 4, thus hooking the bearing 4 and the inner end of the transmission tube 2 onto the connecting seat 3. This invention increases the strength of the connecting hooks by reinforcing the connecting wall, preventing the connecting hooks from deforming outwards under stress.

[0035] There are two bearings 4, namely the first bearing 41 and the second bearing 42. The outer wall of the inner end of the transmission tube 2 is provided with a convex ring 15 to separate the first bearing 41 and the second bearing 42. The first bearing 41 is located between the connecting hook 31 and the convex ring 15, and the second bearing 42 is located between the convex ring 15 and the connecting seat 3.

[0036] The housing 8 is provided with an opening 81 for the outer end of the transmission tube 2 to extend out. The first limit switch 51 and the second limit switch 52 are respectively located at the beginning and end of the travel of the connecting seat 3.

[0037] The connecting base 3 is provided with a trigger top block 32 for triggering the first limit switch 51 and the second limit switch 52.

[0038] The inner wall of the housing 8 is provided with a guide groove 82 along the axial direction of the screw 1, and the trigger top block is slidably guided in the guide groove.

[0039] The cross-section of the transmission section 12 is non-cylindrical. The transmission tube 2 is provided with a non-cylindrical elongated hole 21 corresponding to the transmission section 12. The cross-section of the non-cylindrical elongated hole is non-cylindrical. The transmission section 12 is inserted into the non-cylindrical elongated hole 21. The transmission section and the non-cylindrical elongated hole are in transmission cooperation. The rotation of the transmission section drives the rotation of the transmission tube. The transmission section moves axially within the non-cylindrical elongated hole.

[0040] The food processing machine is an orange juicer. The orange juicer includes the aforementioned drive mechanism, a juicing cup 9, a juicing head 91, and a juicing cup lid 92. The outer end of the drive mechanism's transmission tube 2 extends into the juicing cup 9 and is connected to the juicing head 91 inside the juicing cup 9. Orange juicers are existing technology, and their specific structure and working principle will not be described in detail here.

[0041] Specific operation: Battery 71 is electrically connected to motor 7. Motor 7 drives gearbox 6 to rotate, gearbox 6 rotates, screw 1 rotates, screw 1 rotates, threaded section 11 rotates, threaded section 11 rotates. Since threaded hole 33 on connecting seat 3 is threadedly connected to threaded section 11, screw 1 rotation causes connecting seat 3 to move axially along screw 1. When screw 1 rotates forward, connecting seat 3 pushes transmission tube 2 upward. When screw 1 rotates in reverse, connecting seat 3 pulls transmission tube 2 downward through connecting hook 31. At the same time, transmission section 12 rotates, causing transmission tube 2 to rotate. That is, transmission tube 2 rotates and moves axially at the same time, thereby causing juicing head 91 to both rotate and move up and down, ultimately driving juicing head 91 to juice. After connecting seat 3 rises to a certain height, trigger top block 32 triggers first limit switch 51. First limit switch 51 sends a signal to control circuit board, control circuit board controls motor 7 to stop. After the connecting seat 3 descends to a certain height, the trigger block 32 triggers the second limit switch 52. The second limit switch 52 then sends a signal to control the circuit board, which in turn controls the motor 7 to stop.

[0042] Example 2, as Figures 11 to 12 As shown, the implementation of Embodiment 2 is similar to that of Embodiment 1, with the only difference being that: there is no reinforcing connecting wall 34 between two adjacent connecting hooks 31 on the connecting seat, and the two adjacent connecting hooks 31 are spaced apart. Of course, the connecting seat of this utility model can also be provided with only one connecting hook, as long as the width of the connecting hook is large enough, it can also hook the bearing 4 well.

Claims

1. A drive mechanism for a food processing machine, comprising a motor, a gearbox, a screw, and a transmission tube, characterized in that: It also includes a connecting seat. The first end of the screw is connected to the gearbox for transmission. The screw has a threaded section and a transmission section. The connecting seat is sleeved on the threaded section and is threadedly engaged with the threaded section. The transmission tube is sleeved on the transmission section and is driven by the transmission section. The inner end of the transmission tube is rotatably connected to the connecting seat. A bearing is provided between the inner end of the transmission tube and the connecting seat. The motor drives the gearbox to rotate. The rotation of the gearbox drives the screw to rotate. The rotation of the threaded section drives the connecting seat to move axially along the screw. The movement of the connecting seat drives the transmission tube to move axially along the screw. At the same time, the rotation of the transmission section drives the transmission tube to rotate.

2. The drive mechanism of the food processing machine according to claim 1, characterized in that: The bearing is fitted onto the outer wall of the inner end of the transmission tube and fixed to the connecting seat.

3. The drive mechanism of the food processing machine according to claim 1, characterized in that: The connecting seat is equipped with a connecting hook, which is located on the outside of the inner end of the transmission tube. The connecting hook hooks the bearing and hooks the bearing and the inner end of the transmission tube onto the connecting seat.

4. The drive mechanism of the food processing machine according to claim 1, characterized in that: The connecting seat is provided with at least two connecting hooks, which are located on the outside of the inner end of the transmission tube. The connecting seat is provided with a reinforcing connecting wall between two adjacent connecting hooks. The reinforcing connecting wall connects the two adjacent connecting hooks. The connecting hooks hook the bearing and hook the bearing and the inner end of the transmission tube onto the connecting seat.

5. The drive mechanism of the food processing machine according to claim 1, characterized in that: There are two bearings, namely the first bearing and the second bearing. The outer wall of the inner end of the transmission tube is provided with a convex ring that separates the first bearing and the second bearing. The first bearing is located between the connecting hook and the convex ring, and the second bearing is located between the convex ring and the connecting seat.

6. The drive mechanism of the food processing machine according to claim 1, characterized in that: It also includes a housing, a first limit switch, a second limit switch, and a battery. The inner ends of the motor, gearbox, screw, first limit switch, second limit switch, battery, and transmission tube are located inside the housing. The housing has an opening for the outer end of the transmission tube to extend out. The first limit switch and the second limit switch are respectively located at the beginning and end of the travel of the connecting seat.

7. The drive mechanism of the food processing machine according to claim 5, characterized in that: The connector is equipped with a trigger top block for triggering the first limit switch and the second limit switch.

8. The drive mechanism of the food processing machine according to claim 6, characterized in that: The inner wall of the housing is provided with a guide groove along the axial direction of the screw, and the trigger top block is slidably guided in the guide groove.

9. The drive mechanism of the food processing machine according to claim 1, characterized in that: The cross-section of the transmission section is non-cylindrical, and the transmission tube has a corresponding non-cylindrical long hole. The cross-section of the non-cylindrical long hole is non-cylindrical. The transmission section is inserted into the non-cylindrical long hole, and the transmission section and the non-cylindrical long hole are in transmission cooperation. The rotation of the transmission section drives the rotation of the transmission tube, and the transmission section moves axially within the non-cylindrical long hole.

10. The drive mechanism of the food processing machine according to claim 1, characterized in that: The connector is provided with a threaded hole, which is threaded to fit the threaded section.

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