Safety switch for centrifugal juicer

By designing a safety switch in the centrifugal juicer and utilizing the cooperation of the transmission rod and the return spring, the problem of accidental start-up when not installed correctly is solved, thus achieving the safety and stability of the juicer.

CN224536915UActive Publication Date: 2026-07-21SHENZHEN GERONG ELECTRICAL APPLIANCE CO LTD
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
SHENZHEN GERONG ELECTRICAL APPLIANCE CO LTD
Filing Date
2025-07-28
Publication Date
2026-07-21

AI Technical Summary

Technical Problem

Existing shredder products are prone to accidental start-up when not properly positioned, leading to user injury and low safety.

Method used

Design a safety switch for a centrifugal juicer, including a switch base, a control switch, and a trigger assembly. Through the cooperation of a transmission rod and a return spring, ensure that the juicer is allowed to start only when the cover is correctly installed. If it is not installed correctly, the button will automatically reset to prevent accidental start-up.

Benefits of technology

It effectively prevents the juicer from starting when not installed correctly, ensuring user safety and guaranteeing stable and smooth operation.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model relates to the technical field of small household electrical appliances, specifically relates to a centrifugal juicer's safety switch, the safety switch includes switch seat, control switch and trigger subassembly, the left side of control switch is provided with control button, and the position of switch seat corresponds control button and is equipped with first limit hole, the trigger subassembly includes trigger piece and transmission rod, and the bottom of transmission rod passes first limit hole and is located the top of control button downwards, and the outside of middle lower part of transmission rod is equipped with reset spring, the centrifugal juicer's safety switch of the utility model only when the cover is installed correctly, the cup inside trigger piece will only press down transmission rod, and the control button is pressed, and the juicer can be normally used, when taking off the cover, reset spring automatically lifts transmission rod reset, and immediately releases control button, even if opening juicer power switch, the juicer still can not be used, can effectively prevent accidental start when the blade is exposed, guarantees the user safety.
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Description

Technical Field

[0001] This utility model relates to the technical field of small household appliances, specifically to a safety switch for a centrifugal juicer. Background Technology

[0002] Juicers are common kitchen appliances, mainly used to process fruits, vegetables, and other ingredients into juices or pastes. Currently, many choppers on the market have a problem: some choppers are prone to accidental activation if the main unit is not properly placed on the cover, which can easily cause injury to users and poses a safety risk. Summary of the Invention

[0003] In order to overcome the shortcomings and deficiencies of the existing technology, the purpose of this utility model is to provide a safety switch for a centrifugal juicer.

[0004] The purpose of this utility model is achieved through the following technical solution: a safety switch for a centrifugal juicer, comprising a switch base fixed in the base, a control switch installed at the bottom of the switch base, and a triggering component for triggering the control switch to open or close. A control button is provided on the left side of the control switch. A first limiting hole is provided on the switch base corresponding to the position of the control button. A limiting plate is vertically fixed on the top left side of the switch base, and a limiting groove is vertically provided on the front side of the limiting plate corresponding to the position of the first limiting hole. The triggering component includes a trigger element disposed in the juicing cup and a transmission rod disposed in the base and abutting against the bottom of the trigger element. The bottom of the transmission rod passes downward through the first limiting hole and is located above the control button. A limiting ring is fixed to the lower middle part of the transmission rod. A slider is fixed to the outer wall of the limiting ring, and the slider is slidably connected in the limiting groove. A return spring is sleeved on the outer side of the lower middle part of the transmission rod. The top of the return spring abuts against the bottom of the limiting ring, and the bottom of the return spring abuts against the top of the limiting hole.

[0005] Furthermore, the control switch has at least two plug holes diagonally, and a fixing post is fixed on the front side of the switch base corresponding to the position of each plug hole, with the front end of each fixing post embedded in the corresponding plug hole.

[0006] Furthermore, wiring terminals are fixed on the right side and bottom of the control switch.

[0007] Furthermore, the top of the switch base is provided with a fixing hole, and bolts are passed through the fixing hole to fix it to the inner side wall of the base.

[0008] Furthermore, the bottom of the transmission rod is provided with a slope, and the left side of the control button is set in an arc shape.

[0009] Furthermore, a second limiting hole is vertically opened in the middle of the trigger, and a limiting post is fixed in the juice cup at the position corresponding to the second limiting hole. The trigger is slidably connected to the limiting post through the second limiting hole.

[0010] The beneficial effects of this utility model are as follows: The safety switch of this centrifugal juicer, through the cooperation of the switch base, control switch, and trigger component, can effectively ensure the triggering and resetting of the control button, guaranteeing the safe and stable operation of the juicer. Only when the cover is correctly installed will the trigger inside the cup press down the transmission rod, pressing the control button, allowing the juicer to be used normally. When the cover is removed, the reset spring automatically pushes the transmission rod back to its original position, immediately releasing the control button. Even if the juicer's power switch is turned on, the juicer will still not be usable, effectively preventing accidental starting when the blades are exposed and ensuring user safety. In addition, the first limiting hole, limiting groove, and slider structure provide vertical guidance for the transmission rod and prevent rotation, ensuring smooth and reliable triggering action and avoiding uneven wear and jamming. Attached Figure Description

[0011] Figure 1 This is a perspective view of the present invention.

[0012] Figure 2 This is an exploded view of the present invention.

[0013] Figure 3 This is a perspective view of the transmission rod described in this utility model.

[0014] Figure 4 This is a perspective view of the centrifugal juicer described in this utility model with the cover removed.

[0015] The attached figures are labeled as follows: base 10, switch base 1, first limiting hole 11, limiting groove 12, fixing post 13, fixing hole 14, limiting plate 15, control switch 2, control button 21, plug hole 22, wiring terminal 23, trigger assembly 3, trigger element 31, transmission rod 32, limiting ring 33, slider 34, inclined surface 35, second limiting hole 36, return spring 4, bolt 5. Detailed Implementation

[0016] To facilitate understanding by those skilled in the art, the following description is provided in conjunction with embodiments and appendices. Figure 1-4 The present invention will be further described below. The content mentioned in the embodiments is not intended to limit the present invention.

[0017] See Figure 1-4A safety switch for a centrifugal juicer includes a switch base 1 fixed within a base 10, a control switch 2 installed at the bottom of the switch base 1, and a triggering component 3 for triggering the control switch 2 to open or close. The control switch 2 has a control button 21 on its left side. The switch base 1 has a first limiting hole 11 corresponding to the position of the control button 21. A limiting plate 15 is vertically fixed to the top left side of the switch base 1, and a limiting groove 12 is vertically formed on the front side of the limiting plate 15 corresponding to the position of the first limiting hole 11. The triggering component 3 includes components disposed within a juicing cup 20. The trigger element 31 and the transmission rod 32 are disposed in the base 10 and abut against the bottom of the trigger element 31. The bottom of the transmission rod 32 passes downward through the first limiting hole 11 and is located above the control button 21. A limiting ring 33 is fixed in the lower middle part of the transmission rod 32. A slider 34 is fixed in the limiting ring 33 corresponding to the position of the limiting groove 12. The slider 34 is slidably connected in the limiting groove 12. A return spring 4 is sleeved on the outer side of the lower middle part of the transmission rod 32. The top of the return spring 4 abuts against the bottom of the limiting ring 33 and the bottom of the return spring 4 abuts against the top of the limiting hole 11.

[0018] The safety switch of this centrifugal juicer, through the cooperation of the switch base 1, control switch 2, and trigger component 3, effectively ensures the triggering and resetting of the control button 21, guaranteeing the safe and stable operation of the juicer. Only when the cover is correctly installed will the trigger component 31 inside the cup press down the transmission rod 32, pressing the control button 21, allowing the juicer to be used normally. When the cover is removed, the reset spring 4 automatically lifts the transmission rod 32 to reset, immediately releasing the control button 21. Even if the juicer's power switch is turned on, the juicer will still not be usable, effectively preventing accidental starting when the blades are exposed and ensuring user safety. In addition, the structure of the first limiting hole 11, limiting groove 12, and slider 34 provides vertical guidance for the transmission rod 32 and prevents rotation, ensuring smooth and reliable triggering action and avoiding uneven wear and jamming.

[0019] In this embodiment, the control switch 2 has at least two insertion holes 22 diagonally. A fixing post 13 is fixed to the front side of the switch base 1 at the position corresponding to each insertion hole 22, and the front end of each fixing post 13 is embedded in the corresponding insertion hole 22. This structure is used to install the control switch 2 onto the switch base 1.

[0020] In this embodiment, wiring terminals 23 are fixed on both the right side and the bottom of the control switch 2. Compared with a single wiring terminal 23 connection, the arrangement of multiple wiring terminals 23 can reduce the probability of failure caused by loose connections, poor contact, etc., thereby improving the stability of the entire juicer operation.

[0021] In this embodiment, a fixing hole 14 is provided on the top of the switch base 1, and a bolt 5 is passed through the fixing hole 14 to fix it to the inner side wall of the base 10. The above structure is used to fix the switch base 1 to the inner side wall of the base.

[0022] In this embodiment, the bottom of the transmission rod 32 is provided with a slope 35, and the left side of the control button 21 is arc-shaped. The slope 35 at the bottom of the transmission rod 32 cooperates with the arc-shaped surface on the left side of the control button 21, which can more smoothly convert the up and down movement of the transmission rod 32 into the triggering action of the control button 21.

[0023] In this embodiment, a second limiting hole 36 is vertically formed in the middle of the trigger member 31. A limiting post (not shown in the figure) is fixed inside the juicing cup 20 at the position corresponding to the second limiting hole 36. The trigger member 31 is slidably connected to the limiting post through the second limiting hole 36. Through the cooperation of the second limiting hole 36 and the limiting post, the movement of the trigger member 31 in the juicing cup 20 is limited to the vertical direction, ensuring the stability of the up and down movement path of the trigger member 31. This guiding effect can effectively prevent the trigger member 31 from deviating, shaking or jamming during the movement, ensuring the smoothness and reliability of the transmission process.

[0024] The above embodiments are preferred implementations of this utility model. In addition, this utility model can also be implemented in other ways. Any obvious substitutions without departing from the concept of this utility model are within the protection scope of this utility model.

Claims

1. A safety switch for a centrifugal juicer, comprising a switch base fixed within the base, a control switch mounted on the bottom of the switch base, and a triggering component for triggering the control switch to open or close, characterized in that: A control button is provided on the left side of the control switch. A first limiting hole is provided on the switch base corresponding to the position of the control button. A limiting plate is vertically fixed on the top left side of the switch base. A limiting groove is vertically provided on the front side of the limiting plate corresponding to the position of the first limiting hole. The triggering component includes a trigger element disposed in the juicing cup and a transmission rod disposed in the base and abutting against the bottom of the trigger element. The bottom of the transmission rod passes downward through the first limiting hole and is located above the control button. A limiting ring is fixed to the lower middle part of the transmission rod. A slider is fixed to the outer wall of the limiting ring. The slider is slidably connected in the limiting groove. A return spring is sleeved on the outer side of the lower middle part of the transmission rod. The top of the return spring abuts against the bottom of the limiting ring, and the bottom of the return spring abuts against the top of the limiting hole.

2. The safety switch for a centrifugal juicer according to claim 1, characterized in that: The control switch has at least two plug holes along the diagonal direction. A fixing post is fixed on the front side of the switch base corresponding to the position of each plug hole, and the front end of each fixing post is embedded in the corresponding plug hole.

3. The safety switch for a centrifugal juicer according to claim 1, characterized in that: Wiring terminals are fixed on the right side and bottom of the control switch.

4. The safety switch for a centrifugal juicer according to claim 1, characterized in that: The top of the switch base has a fixing hole, and bolts are used to fix it to the inner side wall of the base.

5. The safety switch for a centrifugal juicer according to claim 1, characterized in that: The bottom of the transmission rod is provided with a slope, and the left side of the control button is set in an arc shape.

6. The safety switch for a centrifugal juicer according to claim 1, characterized in that: The trigger has a second limiting hole vertically opened in the middle, and a limiting post is fixed in the juice cup at the position corresponding to the second limiting hole. The trigger is slidably connected to the limiting post through the second limiting hole.