Multi-gear jumpable switch structure of food processor

Abstract

The application discloses a multi-gear jumpable switch structure of a food processor, which comprises a base box, the base box is provided with zero gear, intermediate gear and highest gear along a first direction and is slidably connected with a sliding gear, the base box is provided with a first metal plate with a first contact plate part, a second metal plate with a second contact plate part corresponding to the intermediate gear and a third metal plate with a third contact plate part corresponding to the highest gear, the sliding gear is provided with a conductive part, a first contact point part of the conductive part always contacts the first contact plate part, a second contact point part contacts the corresponding second contact plate part when sliding to the intermediate gear and contacts the third contact plate part when sliding to the highest gear, the base box is slidably connected with a jumpable gear which can be pressed along a second direction, the jumpable gear and the third metal plate are provided with a jump structure which conducts the first and third metal plates when being pressed, and the sliding gear and the jumpable gear are provided with a locking structure which prevents the jumpable gear from sliding when the zero gear is selected, so that the multi-gear clear switching has the one-key jump function and high safety.

Description

Technical Field

[0001] This invention relates to the field of small household appliance technology, and in particular to a multi-speed switch structure for a food processor. Background Technology

[0002] Currently, most food processors on the market, such as juicers, soy milk makers, grinders, blenders, and egg beaters, are equipped with multi-speed switches to adjust different speeds or power. Common multi-speed switches mainly use a knob or slide mechanism, allowing users to select the desired operating mode by rotating or pushing the switch through the various speeds.

[0003] However, the existing switch structures of food processors have the following shortcomings in actual use: First, when users need to switch directly from a lower setting to the highest setting (such as high-power modes like blending or high-speed grinding), they must push the switch through all the intermediate settings one by one, which is cumbersome and time-consuming, and cannot achieve a more direct one-button quick speed change, affecting ease of use. Second, some switch structures lack a clear damping feel during speed switching, making it difficult for users to accurately judge whether the setting is correct, easily leading to ambiguous settings or accidental operation. Furthermore, most existing switches do not have a mechanism to prevent accidental triggering at the zero setting. If the switch is accidentally pressed or pushed when the machine is not running, it may directly activate the high-power mode, posing a certain safety hazard. Summary of the Invention

[0004] Therefore, the purpose of this invention is to provide a multi-speed switch structure for a food processor that features clear multi-speed switching, one-button speed skipping, and high safety.

[0005] The technical solution adopted by this invention to solve its technical problem is as follows:

[0006] A multi-speed switch structure for a food processor is provided, comprising a base box with multiple speed settings along a first direction, including at least a zero speed, several intermediate speeds, and a maximum speed. A sliding member capable of sliding between the various speed settings is slidably connected to the base box along the first direction. A first metal plate is provided on the base box, having a first contact plate extending along the first direction. A second metal plate is provided on the base box, corresponding to each intermediate speed setting, and has a second contact plate. A third metal plate is provided on the base box, corresponding to the maximum speed setting, and has a third contact plate. The sliding stop is provided with a conductive element. The conductive element has a first contact portion that always abuts against the first contact plate portion during the sliding of the sliding stop. The conductive element has a second contact portion that abuts against the corresponding second contact plate portion when it slides to the middle position and against the third contact plate portion when it slides to the highest position. The base box is slidably connected with a jump stop member along the second direction so that the jump stop member can be pressed. A jump stop structure is provided between the jump stop member and the third metal plate so that the first metal plate and the third metal plate are electrically connected when the jump stop member is pressed. A locking structure is provided between the sliding stop member and the jump stop member to prevent the jump stop member from sliding when the sliding stop member is in the zero position.

[0007] As described above, the multi-speed switch structure of the food processor has an interval damping structure between the sliding component and the base box for pushing the sliding component to the corresponding speed.

[0008] As described above, the multi-speed switch structure of the food processor includes a limiting groove formed on the base and corresponding to each speed setting, a limiting member that can slide relative to the sliding member, and a first elastic member located between the limiting member and the sliding member and pushing the limiting member into the limiting groove.

[0009] The multi-speed switch structure of the food processor described above includes an elastic arm disposed on a third metal plate and extending toward a first metal plate. The elastic arm gradually bends toward the switch member from its root to its end, and the end of the elastic arm is located above the first touch plate in a second direction.

[0010] As described above, the multi-speed switch structure of the food processor has a pressure post on the speed-jumping component and a groove on the sliding component for the pressure post to pass through, so that the pressure post can slide in the groove along a second direction and along a first direction. The locking structure includes a stepped portion on the pressure post and a notch on the side wall of the groove. The width of the stepped portion is greater than the width of the notch and less than the width of the groove. When the sliding component is in the zero position, the pressure post enters the notch.

[0011] As described above, the multi-speed switch structure of the food processor has a guide slope on the end wall of the slide near the recess to push the stepped part away from the slide.

[0012] As described above, the multi-speed switch structure of the food processor has a base box composed of a bottom plate and an upper shell. A metal plate is arranged on the bottom plate, and the sliding plate is slidably connected to the upper shell. The sliding plate is provided with a second elastic element that pushes the conductive element toward the bottom plate.

[0013] In the multi-speed switch structure of the food processor described above, a second elastic element is arranged on the sliding component at least at the corresponding positions of the first contact portion and the second contact portion.

[0014] As described above, the multi-speed switch structure of the food processor has a sliding hole on the upper shell corresponding to the end of the elastic arm, an auxiliary pressing component in the sliding hole, and a through hole communicating with the sliding hole for the pressing column to pass through.

[0015] As described above, in the multi-speed switch structure of the food processor, the conductive element is U-shaped, the first contact portion and the second contact portion are located on both sides of the conductive element, the limiting element is arranged between the first contact portion and the second contact portion, and the limiting groove is arranged between the first metal plate and the third metal plate.

[0016] The beneficial effects of this invention are:

[0017] 1. Easy to operate, it can switch to high power mode with one click. By setting the switch piece and switch structure, users do not need to push the slide piece to the highest position step by step during use. They only need to press the switch piece to make the third metal plate and the first metal plate instantly connected, so that the highest power working state can be directly switched from any intermediate position. It is especially suitable for scenarios that require instantaneous high power output, such as cell wall breaking and high-speed grinding, which significantly improves the convenience of operation and user experience.

[0018] 2. The gear shifting is clearly tactile and features a safety locking function to prevent accidental touches. Through an intermittent damping structure, the sliding component exhibits significant damping changes when sliding between gears and automatically settles into the corresponding gear position, preventing unclear gear shifting or accidental operation and ensuring a good operating feel. At the same time, the locking structure prevents the shifting component from sliding when the sliding component is in the zero position, preventing the machine from accidentally entering the high-power mode when not started, effectively improving safety. Attached Figure Description

[0019] Figure 1 This is a schematic diagram of the multi-speed switch structure of the food processor of the present invention in use.

[0020] Figure 2This is a schematic diagram of the multi-speed switch structure of the food processor of the present invention;

[0021] Figure 3 This is a cross-sectional schematic diagram of the multi-speed switch structure of the food processor of the present invention;

[0022] Figure 4 This is an exploded view of the multi-speed switch structure of the food processor of the present invention. Figure 1 ;

[0023] Figure 5 This is an exploded view of the multi-speed switch structure of the food processor of the present invention. Figure 2 ;

[0024] Figure 6 This is an exploded view of the multi-speed switch structure of the food processor of the present invention. Figure 3 ;

[0025] Figure 7 This is a circuit diagram of the multi-speed switch structure of the food processor of the present invention. Detailed Implementation

[0026] The technical solution of the present invention will now be clearly and completely described in conjunction with the accompanying drawings.

[0027] It should be noted that all directional indications in this invention are only used to explain the relative positional relationships and movement of components in a specific orientation. If the specific orientation changes, the directional indications will also change accordingly. Furthermore, descriptions involving "preferred," "second-best," etc., in this invention 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-best" may explicitly or implicitly include at least one of those features.

[0028] like Figures 1 to 7 As shown, this embodiment provides a multi-speed switch structure for a food processor, mainly used in juicers, soy milk makers, grinders, blenders, egg beaters, and other food processors. It can also be applied to other small household appliances. This structure includes a base box 1, which is fixed to the main unit of the food processor. The base box 1 has multiple speed settings along a first direction, including at least a zero speed, several intermediate speeds, and a maximum speed. In this embodiment, the speeds are set sequentially as zero, 1, 2, 3, 4, and 5, where speeds 1, 2, 3, and 4 are intermediate speeds, and speed 5 is the maximum speed. In practical applications, these settings can be adjusted appropriately. For example, if only zero, 1, and 2 speeds are available, then speed 2 is the maximum speed, and speed 1 is an intermediate speed. The number of intermediate speeds can be set as needed; this is a common setting method and will not be elaborated further. Figure 2 and Figure 3 As shown, the base box 1 is slidably connected to a sliding member 2 that can slide between various gear positions along a first direction. The sliding connection of the sliding member 2 can be achieved by opening a sliding groove in the base box 1, allowing the sliding member 2 to pass through the sliding groove. Preferably, a button structure for hand operation can be provided on the sliding member 2, allowing the user to slide the sliding member 2 by pushing the button structure. Similarly, the base box 1 is slidably connected to a jump gear member 7 along a second direction, wherein the second direction is perpendicular to or slightly inclined to the first direction. For example, in this embodiment, the first direction is vertical, and the second direction is horizontal. The jump gear member 7 is also provided with an exposed button structure for hand pressing, allowing the user to push the jump gear member 7 to slide by pressing it. This can be achieved by opening a slot hole in the base box 1 for the jump gear member 7 to slide. In this embodiment, a button hole is opened on the main body of the food processor to ensure stable sliding of the jump gear member 7. Figures 4 to 6 As shown, the base box 1 is provided with a first metal plate 3, which has a first contact plate portion 31 extending along a first direction. The base box 1 is also provided with a second metal plate 4, corresponding to each intermediate gear position, which has a second contact plate portion 41. The base box 1 is further provided with a third metal plate 5, corresponding to the highest gear position, which has a third contact plate portion 51. All three metal plates are provided with pins passing through the base box 1 for connecting to a control circuit, as shown in the diagram. Figure 7 As shown. The sliding member 2 is provided with a conductive member 6. The conductive member 6 has a first contact part 61 that always abuts against the first contact plate part 31 during the sliding of the sliding member 2. The conductive member 6 has a second contact part 62 that abuts against the corresponding second contact plate part 41 when it slides to the middle position and against the third contact plate part 51 when it slides to the highest position. When the sliding member 2 slides along the first direction, it can connect the corresponding metal plate when it reaches the corresponding position, thereby realizing the control of different positions through electrical signal feedback. In a preferred embodiment of this invention, a switching structure A is provided between the switching member 7 and the third metal plate 5, which makes the first metal plate 3 and the third metal plate 5 electrically connected when the switching member 7 is pressed. Through the switching structure A, the third metal plate 5 at the highest setting is directly connected to the first metal plate 3, realizing rapid switching and one-button high-power mode. For example, when the sliding member 2 is in the 2nd position, pressing the switching member 7 connects the circuit corresponding to the 5th position. At the same time, the circuit of the 2nd position is still connected, but the resistance of the high-power 5th position is small, realizing the power of the 5th position. A locking structure B is provided between the sliding member 2 and the switching member 7, which prevents the switching member 7 from sliding when the sliding member 2 is in the zero position, preventing the high-power mode from being directly activated by the switching member 7 when in the zero position.

[0029] like Figure 3 and Figure 5As shown, in a preferred embodiment, a damping structure C is provided between the sliding member 2 and the base box 1 to push the sliding member 2 to the corresponding position. This results in greater damping between positions and less damping at the corresponding position, allowing the sliding member 2 to automatically slide to the position. The damping structure C includes a limiting groove 11 on the base box 1 corresponding to each position, a limiting member 12 that can slide relative to the sliding member 2, and a first elastic member 13 located between the limiting member 12 and the sliding member 2, pushing the limiting member 12 into the limiting groove 11. The limiting member 12 is spherical, and a receiving slot can be provided on the sliding member 2 to accommodate the limiting member 12, making the structure more stable. Of course, the damping structure C can also adopt other embodiments, such as providing a groove on one and a convex spherical structure that can enter the groove on the other. Its advantages are: when the sliding component 2 slides between different gears, it has obvious gear feel and damping changes, and can automatically fall into the corresponding gear position, avoiding gear ambiguity or misoperation, and improving the operating feel.

[0030] As one implementation of the skip structure A, such as Figures 3 to 5 As shown, the shift mechanism A includes an elastic arm 52 disposed on the third metal plate 5 and extending toward the first metal plate 3. The elastic arm 52 gradually bends toward the shift mechanism 7 from its root to its end. Since the elastic arm 52 is integrally formed on the third metal plate 5, it acts as an elastic reset structure for the shift mechanism 7. The end of the elastic arm 52 is located above the first contact plate 31 in the second direction. When the shift mechanism 7 is pressed, it pushes the elastic arm 52 toward the first contact plate 31 until it touches it, thus achieving conductivity. This eliminates the need for a spring structure, making the structure more compact. Of course, the shift mechanism A can also adopt other structural methods, such as setting a conductive metal on the shift mechanism 7. When pressed, the conductive metal can simultaneously touch the first contact plate 31 and the third metal plate 5. Its advantages are: the user can instantly connect the highest power level circuit by pressing the shift mechanism 7 at any intermediate level, without having to push it to the highest level step by step, achieving one-click access to high power mode (such as cell wall breaking, high-speed grinding); at the same time, the elastic arm 52 is integrally formed and also serves as a reset structure, saving parts and assembly space.

[0031] like Figures 3 to 5As shown, in a preferred embodiment, the jump stop 7 is provided with a top pressure post 71, and the slide stop 2 is provided with a slide groove 21 through which the top pressure post 71 passes, so that the top pressure post 71 can slide in the slide groove 21 along a second direction and along a first direction. The locking structure B includes a stepped portion 72 provided on the top pressure post 71 and a notch 22 provided on the side wall of the slide groove 21. The width of the stepped portion 72 is greater than the width of the notch 22 and less than the width of the slide groove 21, and when the slide stop 2 is in the zero position, the top pressure post 71 enters the notch 22. Preferably, the slide groove 21 has a guide slope 23 on the groove wall near the notch 22 to push the stepped portion 72 away from the slide groove 21. When the slide stop 2 slides to the zero position, the stepped portion 72 is stuck outside the groove of the slide groove 21, preventing the jump stop 7 from sliding, thereby locking it. The guide slope 23 can assist in pushing out the stepped portion 72, making the movement of the jump stop 7 smoother. Its advantages are: preventing accidental pressing of the shift switch 7 when in the zero position, avoiding direct entry into high power mode when the machine is not started, and improving safety during use.

[0032] like Figure 3 and Figure 6 As shown, the base box 1 is composed of a base plate 101 and an upper shell 102. A metal plate is arranged on the base plate 101, and the sliding member 2 is slidably connected to the upper shell 102. The sliding member 2 is provided with a second elastic member 8 that pushes the conductive member 6 toward the base plate 101. Preferably, the second elastic member 8 is arranged at least at the corresponding positions of the first contact portion 61 and the second contact portion 62 on the sliding member 2, so that the first contact portion 61 and the second contact portion 62 can be tightly fitted and conductive. As a further optimized embodiment, the first contact portion 61 and the second contact portion 62 are set as a raised arc structure, so that the sliding member 2 moves more smoothly. The first contact plate portion 31, the second contact plate portion 41, and the third contact plate portion 51 are embedded in the base plate 101, so that the surface of each contact plate portion is lower than the corresponding surface contour of the base plate 101, forming a concave structure, so that the sliding member 2 can easily slide to the corresponding position. Its advantages are: the second elastic element 8 always pushes the conductive element 6 to stick to each contact plate part, and the combination of the arc-shaped contact point and the concave contact plate part design ensures both low sliding resistance and reliable electrical connection during long-term use.

[0033] like Figure 3 As shown, preferably, the upper shell 102 has a sliding hole 14 corresponding to the end of the elastic arm 52. An auxiliary pressing member 9 is provided in the sliding hole 14. The upper shell 102 also has a through hole 15 communicating with the sliding hole 14 for the pressing column 71 to pass through. When the jump stop member 7 is pressed and slid, the pressing member 9 is pushed first, and the elastic arm 52 is deformed by the pressing member 9, making the structure more stable and reliable.

[0034] like Figure 4 and Figure 5As shown, to achieve a more compact structure, the conductive element 6 is U-shaped. The first contact portion 61 and the second contact portion 62 are located on both sides of the conductive element 6. The limiting element 12 is arranged between the first contact portion 61 and the second contact portion 62, and the limiting groove 11 is arranged between the first metal plate 3 and the third metal plate 5. Its advantages are: the U-shaped conductive element separates the contacts on both sides, and the limiting element and limiting groove are rationally arranged between the metal plates, resulting in a compact overall structure that facilitates miniaturization and integration. Furthermore, the number of speed settings can be flexibly adjusted according to actual needs (e.g., only zero, 1, and 2 speeds are available). This structural principle can be applied to various food processors such as juicers, soy milk makers, and blenders, as well as other small appliances, demonstrating strong scalability.

[0035] The above are merely preferred embodiments of the present invention and do not limit the patent scope of the present invention. All equivalent structural transformations made using the contents of the present invention's specification and drawings under the inventive concept of the present invention, or direct or indirect applications in other related technical fields, are included within the patent protection scope of the present invention.

Claims

1. A multi-speed switch structure for a food processor, characterized in that, The system includes a base box (1) with multiple gear positions along a first direction, including at least a zero gear position, several intermediate gear positions, and a maximum gear position. A sliding member (2) capable of sliding between the gear positions is slidably connected to the base box (1) along the first direction. A first metal plate (3) is provided on the base box (1), having a first contact plate portion (31) extending along the first direction. A second metal plate (4) is provided on the base box (1) corresponding to each intermediate gear position, having a second contact plate portion (41). A third metal plate (5) is provided on the base box (1) corresponding to the maximum gear position, having a third contact plate portion (51). A conductive element (6) is provided on the sliding member (2). The conductive component (6) is provided with a first contact portion (61) that always abuts against the first contact plate portion (31) during the sliding of the sliding member (2). The conductive component (6) is provided with a second contact portion (62) that abuts against the corresponding second contact plate portion (41) when it slides to the middle position and abuts against the third contact plate portion (51) when it slides to the highest position. The base box (1) is slidably connected with a jumper (7) in the second direction so that the jumper (7) can be pressed. A jumper structure is provided between the jumper (7) and the third metal plate (5) so that the first metal plate (3) and the third metal plate (5) are electrically connected when the jumper (7) is pressed. A locking structure is provided between the sliding member (2) and the jumper (7) to prevent the jumper (7) from sliding when the sliding member (2) is in the zero position.

2. The multi-speed switch structure for a food processor according to claim 1, characterized in that, An interval damping structure is provided between the sliding member (2) and the base box (1) for pushing the sliding member (2) to slide to the corresponding position.

3. The multi-speed switch structure for a food processor according to claim 2, characterized in that, The interval damping structure includes a limiting groove (11) formed on the base box (1) and corresponding to each gear position, a limiting member (12) that can slide relative to the sliding member (2), and a first elastic member (13) located between the limiting member (12) and the sliding member (2) and pushing the limiting member (12) into the limiting groove (11).

4. The multi-speed switch structure for a food processor according to claim 1, characterized in that, The shift structure includes an elastic arm (52) disposed on a third metal plate (5) and extending toward a first metal plate (3). The elastic arm (52) gradually bends toward the shift member (7) from its root to its end. The end of the elastic arm (52) is located above the first contact plate portion (31) in a second direction.

5. The multi-speed switch structure for a food processor according to claim 4, characterized in that, The jump stop (7) is provided with a top pressure post (71), and the slide stop (2) is provided with a slide groove (21) through which the top pressure post (71) passes, so that the top pressure post (71) can slide in the slide groove (21) along the second direction and along the first direction. The locking structure includes a stepped part (72) provided on the top pressure post (71) and a notch (22) provided on the side wall of the slide groove (21). The width of the stepped part (72) is greater than the width of the notch (22) and less than the width of the slide groove (21). When the slide stop (2) is in the zero position, the top pressure post (71) enters the notch (22).

6. The multi-speed switch structure for a food processor according to claim 5, characterized in that, The chute (21) has a guide slope (23) on the chute wall near the notch (22) to push the stepped part (72) away from the chute (21).

7. The multi-speed switch structure for a food processor according to claim 5, characterized in that, The base box (1) is composed of a bottom plate (101) and an upper shell (102). A metal plate is arranged on the bottom plate (101). The sliding stop (2) is slidably connected to the upper shell (102). The sliding stop (2) is provided with a second elastic element (8) that pushes the conductive element (6) toward the bottom plate (101).

8. The multi-speed switch structure for a food processor according to claim 7, characterized in that, The slide member (2) has a second elastic member (8) arranged at least at the corresponding positions of the first contact part (61) and the second contact part (62).

9. The multi-speed switch structure for a food processor according to claim 7, characterized in that, The upper shell (102) has a sliding hole (14) corresponding to the end of the elastic arm (52), and an auxiliary pressing member (9) is provided in the sliding hole (14). The upper shell (102) also has a through hole (15) communicating with the sliding hole (14) for the pressing column (71) to pass through.

10. The multi-speed switch structure for a food processor according to claim 3, characterized in that, The conductive element (6) is U-shaped, with the first contact portion (61) and the second contact portion (62) located on both sides of the conductive element (6), the limiting element (12) arranged between the first contact portion (61) and the second contact portion (62), and the limiting groove (11) arranged between the first metal plate (3) and the third metal plate (5).

Images