Rotary switch assembly of juicer

Abstract

The utility model discloses a rotary switch assembly of a juicer, which comprises a switch, a switch seat and a knob, an adjusting shaft is arranged on the switch, the switch is fixed on the switch seat, the knob is rotatably mounted on the switch seat, one end of the adjusting shaft is inserted into the knob, and a forward gear and a reverse gear are arranged on the switch. The rotary knob drives the adjusting shaft to rotate between a forward rotation gear and a reverse rotation gear to form a rotation angle adjusting range a, and is characterized by further comprising a buffering assembly, the buffering assembly comprises a first protruding portion arranged on the rotary knob and a second protruding portion arranged on the switch base, and the second protruding portion is located in the rotation angle adjusting range a. The knob rotates to drive the first convex part to elastically abut against the second convex part; according to the rotary switch assembly of the juicer, the rotary knob is subjected to resistance force in the process of switching the forward rotation gear and the reverse rotation gear, so that the rotation speed of the rotary knob is reduced, the situation that the rotation direction of the motor is switched in a short time can be well avoided, and the service life of the motor is guaranteed.

Description

Technical Field

[0001] This utility model relates to the field of juicer technology, and in particular to a rotary switch assembly for a juicer. Background Technology

[0002] The existing rotary switch for juicers, as seen in Chinese Utility Model Patent CN218826790U, entitled "Rotary Switch Structure for Food Processor," authorized on April 7, 2023, includes a main unit, a knob, and a switch. Its distinguishing feature is the inclusion of a switch bracket. The main unit's housing has an assembly hole, and the switch bracket is fixed to the inner cavity of the housing near the assembly hole. The switch is fixed to the rear of the switch bracket, with at least a portion of its front facing the assembly hole. The rotation shaft of the switch extends from the rear to the front of the switch bracket, and the knob is connected to the rotation shaft and extends beyond the assembly hole. This rotary switch structure for a food processor, by adding a switch bracket, fixes the knob and switch together to the switch bracket, forming a unified rotary switch structure. When installing the rotary switch structure on the main unit, the user can pre-install the entire rotary switch structure outside the main unit before fixing it inside. The entire installation process is simple and convenient for the user's assembly and disassembly operations.

[0003] However, the rotary switch assembly of the juicer with the above structure still has the following shortcomings: (1) The rotary switch is used to control the working mode of the motor in the food processor (such as forward and reverse rotation and shutdown). However, there is no structure between the knob and the switch bracket on which the switch is installed to slow down the rotation speed of the knob. Therefore, the user can easily turn the knob quickly to achieve rapid switching of the switch position. In fact, when the user applies a lot of force, the switch may skip the position, causing the motor to switch from forward to reverse rotation in an instant. This sudden change in motor rotation in a short period of time can easily cause demagnetization inside the motor, affecting the service life of the motor. Utility Model Content

[0004] The purpose of this invention is to overcome the shortcomings of the existing technology and provide a rotary switch assembly for a juicer that slows down the rotation speed of the knob, thereby improving the service life of the motor.

[0005] The purpose of this utility model is achieved as follows:

[0006] A rotary switch assembly for a juicer includes a switch, a switch base, and a knob. The switch has an adjusting shaft and is fixed to the switch base. The knob is rotatably mounted on the switch base, with one end of the adjusting shaft inserted into the knob. The switch has a forward rotation position and a reverse rotation position. The knob drives the adjusting shaft to rotate between the forward and reverse rotation positions, thus adjusting the rotation angle range 'a'. The assembly further includes a damping component, which includes a first protrusion on the knob and a second protrusion on the switch base. The second protrusion is located within the adjustment rotation angle range 'a'. When the knob rotates... The first and second protrusions elastically abut against each other. The rotary switch assembly of this juicer, by setting the first and second protrusions elastically abutting between the knob and the switch base, ensures that the knob experiences a resistive force from the interaction of the first and second protrusions during the switching between forward and reverse positions. This slows down the knob's rotation speed, extends the time required to switch between forward and reverse positions, effectively preventing the juicer's motor from switching directions in a short period, thus protecting the motor's lifespan. Furthermore, the slowed rotation of the knob during switching also serves as a reminder to the user, facilitating control over the switching time.

[0007] The objective of this utility model can also be achieved by the following technical measures:

[0008] Furthermore, the switch is also provided with a stop position, which is located within the adjustment rotation angle range a. The first and second protrusions, which are elastically abutting each other, are located above the stop position. This ensures that when the knob is rotated to the stop position, it receives a damping force, allowing the motor to stop stably at the stop position. In other words, the juicer's motor can stop rotating before switching to the forward or reverse position, thus ensuring the motor's service life.

[0009] Specifically, the knob is provided with a snap-fit ​​arm, and the switch base has an arc-shaped hollow hole corresponding to the snap-fit ​​arm position. One end of the snap-fit ​​arm passes through the arc-shaped hollow hole and is snapped onto the switch base on one side of the arc-shaped hollow hole. This not only realizes the installation of the knob on the switch base, but also enables the knob to rotate on the switch base. Furthermore, the cooperation between the arc-shaped hollow hole and the snap-fit ​​arm limits the extreme position of the knob's rotation on the switch base, preventing the knob from being rotated excessively.

[0010] Specifically, a first elastic protrusion is provided on the switch base on the other side of the arc-shaped hollow hole, and a second protrusion is provided on the end of the snap-fit ​​arm facing the first protrusion; its ingenious design makes the structure of the arc-shaped hollow hole, the first protrusion, the snap-fit ​​arm and the second protrusion compact.

[0011] Specifically, a V-shaped sheet is provided on the switch base on the other side of the arc-shaped perforation. There is a perforation gap between the two sides of the V-shaped sheet and the switch base. A protrusion is provided on the end of the V-shaped sheet facing the arc-shaped perforation, and the protrusion constitutes the first protrusion. The V-shaped sheet itself can achieve good elastic deformation, and the perforation gap ensures that the switch base will not affect the elastic deformation of the V-shaped sheet, so that the protrusion can move elastically with the V-shaped sheet, and the implementation effect is good.

[0012] Specifically, guide arc surfaces are provided on both sides of the protrusion so that the second protrusion on the snap-fit ​​arm can gradually push the protrusion and the V-shaped sheet to undergo elastic deformation through the guide arc surfaces, thereby allowing the snap-fit ​​arm to pass through the protrusion and enabling the knob to switch to the corresponding position.

[0013] Specifically, one end of the snap-fit ​​arm is provided with a concave portion, and one end of the snap-fit ​​arm adjacent to the concave portion forms the second protrusion. One side of the second protrusion connected to the concave portion is provided with a first arc surface, and the other side of the second protrusion is provided with a second arc surface. The formation of the second protrusion is simple and convenient, and the first and second arc surfaces also facilitate the second protrusion to stably push the first protrusion.

[0014] Specifically, the knob includes a hollow knob shell, a decorative cover, and a knob base. The decorative cover is snapped together with the knob base, and the hollow knob shell is clamped between the decorative cover and the knob base. The knob base has a snap-fit ​​arm on its bottom surface, and a connecting post with a slot is provided at the center of the bottom surface of the knob base. The adjustment shaft of the switch is inserted into the slot. The knob cooperates with the switch base and the switch through the knob base, while the hollow knob shell facilitates the user's operation of the knob rotation.

[0015] The beneficial effects of this utility model are as follows:

[0016] (1) The rotary switch assembly of this juicer has a first protrusion and a second protrusion that are elastically abutted between the knob and the switch base. This makes the knob subject to the resistance force of the first protrusion and the second protrusion during the switching of the forward and reverse gears. This slows down the rotation speed of the knob and prolongs the time for the knob to switch between the forward and reverse gears. This can effectively prevent the motor in the juicer from switching the rotation direction in a short time, which is beneficial to ensuring the service life of the motor. In addition, the knob can also remind the user when it is slowed down during the switching process, so as to facilitate the user to control the switching time.

[0017] (2) The V-shaped sheet itself can achieve good elastic deformation, and the hollow space gap ensures that the switch base will not affect the elastic deformation of the V-shaped sheet, so that the protrusion can move elastically with the V-shaped sheet, and its implementation effect is good.

[0018] (3) The second protrusion is simple and convenient to form, and the first and second arc surfaces also facilitate the second protrusion to stably push the first protrusion. Attached Figure Description

[0019] Figure 1 This is a schematic diagram of the juicer of this utility model.

[0020] Figure 2 This is a cross-sectional view of the juicer of this utility model.

[0021] Figure 3 for Figure 2 Enlarged view of point A.

[0022] Figure 4 This is a schematic diagram of the rotary switch assembly of the juicer of this utility model.

[0023] Figure 5 for Figure 4 A diagram from another angle.

[0024] Figure 6 This is a disassembled view of the rotary switch assembly of the juicer of this utility model.

[0025] Figure 7 for Figure 6 A diagram from another angle.

[0026] Figure 8 for Figure 7 Enlarged view of point B.

[0027] Figure 9 This is a schematic diagram showing the distribution of the switch positions of this utility model. Detailed Implementation

[0028] The present invention will be further described below with reference to the accompanying drawings and embodiments:

[0029] Implementation examples, in conjunction with Figures 1 to 9 As shown, a rotary switch assembly for a juicer includes a switch 1, a switch base 2, and a knob 3. The switch 1 is provided with an adjustment shaft 11 and is fixed on the switch base 2. The knob 3 is rotatably mounted on the switch base 2, and one end of the adjustment shaft 11 is inserted into the knob 3. The switch 1 is provided with a forward rotation position 12 and a reverse rotation position 13. The knob 3 drives the adjustment shaft 11 to rotate between the forward rotation position 12 and the reverse rotation position 13 to form an adjustable rotation angle range a. The feature is that it also includes a damping component, which includes a first protrusion 4 provided on the knob 3 and a second protrusion 5 provided on the switch base 2. The second protrusion 5 is located within the adjustable rotation angle range a. Rotation of the knob 3 causes the first protrusion 4 and the second protrusion 5 to elastically abut against each other.

[0030] More specifically, the juicer includes a main unit 6 and a juicing component 7 connected to the main unit 6. The main unit 6 is equipped with a drive motor 61 and a mounting hole 62. A connecting hook 23 is provided on the outer periphery of the switch base 2. The connecting hook 23 is engaged with the edge of the mounting hole 62 of the main unit 6. The rotary switch component is installed on the main unit 6 through the switch base 2.

[0031] As a specific embodiment, the switch 1 is also provided with a stop position 14 and the stop position 14 is located within the adjustment rotation angle range a, and the first protrusion 4 and the second protrusion 5 that elastically abut against each other are located above the stop position 14.

[0032] As a more specific solution, the knob 3 is provided with a snap-fit ​​arm 31, and the switch base 2 has an arc-shaped hollow hole 21 at the position corresponding to the snap-fit ​​arm 31. One end of the snap-fit ​​arm 31 passes through the arc-shaped hollow hole 21 and is snapped onto the switch base 2 on one side of the arc-shaped hollow hole 21.

[0033] In this embodiment, a first elastic protrusion 4 is provided on the switch base 2 on the other side of the arc-shaped hollow hole 21, and a second protrusion 5 is provided on the end of the snap-fit ​​arm 31 facing the first protrusion 4.

[0034] In this embodiment, a V-shaped sheet 22 is provided on the switch base 2 on the other side of the arc-shaped hollow hole 21. There is a hollow gap 100 between the two sides of the V-shaped sheet 22 and the switch base 2. A protrusion is provided on one end of the V-shaped sheet 22 facing the arc-shaped hollow hole 21. The protrusion constitutes the first protrusion 4.

[0035] In this embodiment, guide arc surfaces 41 are provided on both sides of the protrusion.

[0036] As a preferred embodiment, one end of the snap-fit ​​arm 31 is provided with a concave portion 311, and one end of the snap-fit ​​arm 31 adjacent to the concave portion 311 forms the second protrusion 5. A first arc surface 51 is provided on one side of the second protrusion 5 connected to the concave portion 311, and a second arc surface 52 is provided on the other side of the second protrusion 5.

[0037] As a preferred embodiment, the knob 3 includes a hollow knob housing 32, a decorative cover 33, and a knob base 34. The decorative cover 33 is snapped together with the knob base 34, and the hollow knob housing 32 is clamped between the decorative cover 33 and the knob base 34. The knob base 34 has a snap-fit ​​arm 31 on its bottom surface, and a connecting post 342 with a slot 341 is provided at the center of the bottom surface of the knob base 34. The adjusting shaft 11 of the switch 1 is inserted into the slot 341.

Claims

1. A rotary switch assembly for a juicer, comprising a switch (1), a switch base (2), and a knob (3), wherein the switch (1) is provided with an adjusting shaft (11), the switch (1) is fixed on the switch base (2), the knob (3) is rotatably mounted on the switch base (2), and one end of the adjusting shaft (11) is inserted into the knob (3), the switch (1) is provided with a forward rotation position (12) and a reverse rotation position (13), and the knob (3) drives the adjusting shaft (11) to rotate between the forward rotation position (12) and the reverse rotation position (13) to adjust the rotation angle range α, characterized in that, It also includes a damping component, which includes a first protrusion (4) on the knob (3) and a second protrusion (5) on the switch base (2). The second protrusion (5) is located within the adjustment rotation angle range a. The rotation of the knob (3) causes the first protrusion (4) and the second protrusion (5) to elastically abut against each other.

2. The rotary switch assembly of the juicer according to claim 1, characterized in that, The switch (1) is also provided with a stop position (14) and the stop position (14) is located within the range a of the adjustment rotation angle. The first protrusion (4) and the second protrusion (5) that elastically abut against each other are located above the stop position (14).

3. The rotary switch assembly of the juicer according to claim 1, characterized in that, The knob (3) is provided with a snap-fit ​​arm (31), and the switch base (2) has an arc-shaped hollow hole (21) corresponding to the snap-fit ​​arm (31). One end of the snap-fit ​​arm (31) passes through the arc-shaped hollow hole (21) and is snapped onto the switch base (2) on one side of the arc-shaped hollow hole (21).

4. The rotary switch assembly of the juicer according to claim 3, characterized in that, A first elastic protrusion (4) is provided on the switch base (2) on the other side of the arc-shaped hollow hole (21), and a second protrusion (5) is provided on one end of the snap-fit ​​arm (31) facing the first protrusion (4).

5. The rotary switch assembly of the juicer according to claim 4, characterized in that, A V-shaped sheet (22) is provided on the switch base (2) on the other side of the arc-shaped hollow hole (21). There is a hollow gap (100) between the two sides of the V-shaped sheet (22) and the switch base (2). A protrusion is provided on one end of the V-shaped sheet (22) facing the arc-shaped hollow hole (21). The protrusion constitutes the first protrusion (4).

6. The rotary switch assembly of the juicer according to claim 5, characterized in that, Guide arc surfaces (41) are provided on both sides of the protrusion.

7. The rotary switch assembly of the juicer according to claim 3, characterized in that, One end of the snap-fit ​​arm (31) is provided with a concave portion (311), and one end of the snap-fit ​​arm (31) adjacent to the concave portion (311) forms the second protrusion (5). The second protrusion (5) connected to the concave portion (311) has a first arc surface (51) on one side and a second arc surface (52) on the other side.

8. The rotary switch assembly of the juicer according to claim 3, characterized in that, The knob (3) includes a hollow knob shell (32), a decorative cover (33) and a knob base (34). The decorative cover (33) is snapped together with the knob base (34). The hollow knob shell (32) is clamped between the decorative cover (33) and the knob base (34). The knob base (34) has a snap-fit ​​arm (31) on its bottom surface. The center of the bottom surface of the knob base (34) has a connecting post (342) with a slot (341). The adjusting shaft (11) of the switch (1) is inserted into the slot (341).

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