Electric flour mill with safety switch

By introducing a safety switch mechanism into the electric grinding mill and utilizing the coordination of the connecting rod and the top edge pressure frame, the potential safety hazard when the lid is not covered is resolved, safe operation and closed material handling are achieved, and the safety of use and environmental cleanliness are improved.

CN223324652UActive Publication Date: 2025-09-12ZHEJIANG HUAGUANG ELECTRIC APPLIANCE GRP
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Patent Information

Application Number
CN202422468400.7
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2024-10-12
Publication Date
2025-09-12
Estimated Expiration
2034-10-12

AI Technical Summary

Technical Problem

When the existing electric grinding mill is not covered, powder is easily splashed, which poses a safety hazard.

Method used

An electric grinding mill with a safety switch is designed. A connecting rod with a reset spring and a top edge pressure frame are arranged in the cup body. The connecting rod abuts against the lid to ensure that the connecting rod is in the normally open position when the lid is not closed. The top edge is offset from the switch contacts, and the motor cannot be started by pressing the button; when the lid is screwed on, the connecting rod dives and the top edge presses the switch contacts to start the motor.

Benefits of technology

Effectively prevent misoperation, reduce accidents, ensure that materials are processed in a closed space, avoid powder splashing, keep the environment clean and reduce material waste.

✦ Generated by Eureka AI based on patent content.

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  • Figure CN223324652U_ABST
    Figure CN223324652U_ABST
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Abstract

The utility model relates to an electric flour mill with a safety switch, which comprises a cup body and a cover, a flour milling chamber and an element chamber positioned below the flour milling chamber are arranged in the cup body, a driving motor is arranged in the element chamber, flour milling blades are arranged in the flour milling chamber, a connecting rod with a reset spring is arranged on the cup body, and the safety switch is arranged on the connecting rod. The upper end of the connecting rod abuts against the cover so that the connecting rod can descend, the connecting rod is provided with a normally-open position in a normal state and has a descending position when the connecting rod descends, a pressing frame with a top edge is arranged on the connecting rod, a reset piece is arranged between the pressing frame with the top edge and the connecting rod, and therefore the pressing frame with the top edge is pressed to drive the top edge to be pressed downwards. The flour mill has the beneficial effects that 1, misoperation is prevented, the safety of a user is guaranteed, the flour mill can be effectively prevented from being started by children or personnel due to curiosity or mistaken touch, and the possibility of accidents is reduced;
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Description

Technical Field

[0001] The utility model relates to a structural improvement of an electric grinding mill, in particular to a safety system of the electric grinding mill. Background Art

[0002] Electric grinders are ideal for home kitchens, offices, and other places, meeting the need for fine grinding of small quantities of ingredients. They are typically compact and portable, making them easy to carry and store without taking up too much space. They are also simple to operate, typically featuring only a few simple controls, such as an on / off switch and a speed control. They can be used to grind a variety of ingredients and items, including coffee beans, nuts, spices, and traditional Chinese medicine. The parts that come into contact with the ingredients are typically made of food-grade, safe materials, ensuring that the ground items are free of contamination. The grinding process is quick and time-saving.

[0003] An electric grinder consists of a grinding chamber with a lid above it, which houses a grinding blade. The blade rotates to crush the powder. If the user mistakenly leaves the lid on and uses the grinder, powder can scatter and even cause accidents. Utility Model Content

[0004] In order to overcome the disadvantage that safety accidents are easily caused when the cover of the existing electric grinding mill is not closed, the utility model provides an electric grinding mill with a safety switch.

[0005] The technical solution of the utility model for solving its technical problems is: an electric grinder with a safety switch, comprising a cup body and a lid, wherein a grinding chamber and an element chamber located below the grinding chamber are provided in the cup body, a driving motor is provided in the element chamber, a grinding blade is provided in the grinding chamber, a connecting rod with a reset spring is provided on the cup body, the upper end of the connecting rod abuts against the lid so that the connecting rod can dive, the connecting rod has a normally open position under normal conditions, and has a diving position when the connecting rod dives, the connecting rod is provided with a top edge pressure frame, a reset member is provided between the top edge pressure frame and the connecting rod, so that the top edge pressure frame is pressed and drives the top edge to be pressed down; a switch is also provided on one side of the connecting rod in the cup body, the switch controls the switch of the driving motor, when the connecting rod is in the diving position, the top edge is aligned with the contact of the switch, and when the connecting rod is in the normally open position, the top edge is idle; a button is provided on the cup body, and the button is located outside the top edge pressure frame.

[0006] In order to occupy space more efficiently, the switch is located on the left side of the pressure frame with a top edge, and the top edge is located on the left side of the pressure frame with a top edge and is an inclined surface.

[0007] A preferred embodiment of a pressure frame with a top edge is that the lower part of the connecting rod is provided with a pressure frame through hole in the front-back direction, the middle part of the pressure frame with a top edge is a through rod, the through rod is provided in the pressure frame through hole, and the reset member is a spring.

[0008] The installation position of the spring is optimized, and the spring is sleeved outside the penetration rod.

[0009] Further optimization is performed on the top edge pressing frame, where arms are provided on both sides of the top edge pressing frame, and inverted hooks are provided at the ends of the arms, so that the arms hold the connecting rod so that the top edge pressing frame has a front and rear travel limit; the top edge is located on the left arm.

[0010] In order to facilitate the installation of the pressing frame, the lower end of the connecting rod is recessed to form a pressing frame cavity, and the pressing frame with the top edge is located in the pressing frame cavity.

[0011] The abutment structure is preferably provided with a connecting rod end head with a beveled edge at the upper end of the connecting rod, and a connecting rod pushing head is provided on the cover. When the cover is closed on the cup body, the connecting rod pushing head pushes the beveled edge of the connecting rod end head, thereby the connecting rod dives.

[0012] Further preferably, a limit card is provided on the inner side of the upper edge of the cup body, and the end of the connecting rod is against the limit card; when the lid is closed on the cup body, the connecting rod pushes the head to be stuck under the limit card.

[0013] In order to further enhance the hand feel and prevent retreat, a top is provided below the limit card, and a limit groove is provided on the upper side of the connecting rod pushing head, and the top is clamped in the limit groove.

[0014] Furthermore, the switch is a micro switch.

[0015] When the utility model is in use and the cover is not closed, the connecting rod is in the normally open position, the top edge is misaligned with the contact of the switch, and the driving motor will not start when the button is pressed.

[0016] When the cover is screwed on, the connecting rod pushing head of the cover pushes the beveled edge of the connecting rod end at the upper end of the connecting rod, and the connecting rod moves downward and is in a submerged position. At this time, the pressure frame with the top edge is located on the same horizontal plane as the contacts of the switch. When the button is pressed, the pressure frame with the top edge is driven downward, and the top edge presses the contacts of the switch, thereby realizing the start of the drive motor and driving the grinding blade to rotate and grind powder.

[0017] The beneficial effects of this utility model are: 1. It prevents misoperation and ensures user safety, effectively preventing children or people from starting the grinder out of curiosity or accidental touch, thereby reducing the possibility of accidents. 2. It prevents material splashing, ensuring that during the grinding process, the material is always processed in a closed space, preventing powder or granular materials from splashing around, keeping the environment clean, and also reducing material waste. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 is a schematic diagram of an embodiment.

[0019] Figure 2 2 is a vertical cross-sectional view of an embodiment.

[0020] Figure 3 It is a schematic diagram of the junction of the lid and the cup body of an embodiment.

[0021] Figure 4 It is a perspective schematic diagram of an embodiment.

[0022] Figure 5 1 is a cross-sectional schematic diagram of an embodiment.

[0023] Figure 6 The figure is an exploded schematic diagram of the structure related to the connecting rod of an embodiment. DETAILED DESCRIPTION

[0024] The present invention will be described in further detail below with reference to the accompanying drawings and embodiments.

[0025] Example 1

[0026] Combined with attachment Figures 1 to 6 , an electric grinding mill with a safety switch 12, comprising a cup body 1 and a lid 2, a grinding chamber 3 and an element chamber 4 located below the grinding chamber 3 are provided in the cup body 1, a driving motor 5 is provided in the element chamber 4, a grinding blade 6 is provided in the grinding chamber 3, a connecting rod 8 with a return spring 7 is provided on the cup body 1, the upper end of the connecting rod 8 abuts against the lid 2 so that the connecting rod 8 can dive, the connecting rod 8 has a normally open position under normal conditions, and has a submerged position when the connecting rod 8 dives, and the connecting rod 8 has a There is a top edge pressure frame 9, and a reset part 10 is provided between the top edge pressure frame 9 and the connecting rod 8, so that the top edge pressure frame 9 is pressed and drives the top edge 11 to be pressed down; a switch 12 is also provided on one side of the connecting rod 8 inside the cup body 1, and the switch 12 controls the switch of the drive motor 5. When the connecting rod 8 is in the submerged position, the top edge 11 is aligned with the contact 13 of the switch 12. When the connecting rod 8 is in the normally open position, the top edge 11 is not in contact; a button 14 is provided on the cup body 1, and the button 14 is located on the outside of the top edge pressure frame 9.

[0027] In order to occupy space more efficiently, the switch 12 is located on the left side of the top edge pressing frame 9, and the top edge 11 is located on the left side of the top edge pressing frame 9 and is an inclined surface.

[0028] A preferred embodiment of a top edge pressure frame 9 is that a pressure frame through hole 15 in the front-to-back direction is provided at the lower portion of the connecting rod 8, a through rod 16 is provided in the middle portion of the top edge pressure frame 9, the through rod 16 is passed through the pressure frame through hole 15, and the reset member 10 is a spring.

[0029] The installation position of the spring is optimized, and the spring is sleeved outside the penetrating rod 16.

[0030] The top edge 11 pressing frame is further optimized, and arms 17 are provided on both sides of the top edge pressing frame 9, and hooks 18 are provided at the ends of the arms 17, so that the arms 17 hold the connecting rod 8 so that the top edge pressing frame 9 has a front and rear travel limit; the top edge 11 is located on the left arm 17.

[0031] In order to facilitate the installation of the press frame, the lower end of the connecting rod 8 is recessed to form a press frame cavity, and the press frame with the top edge is located in the press frame cavity.

[0032] The abutment structure is optimized, and a connecting rod end 20 with a bevel 19 is provided at the upper end of the connecting rod 8, and a connecting rod pushing head 21 is provided on the cover 2. When the cover 2 is closed on the cup body 1, the connecting rod pushing head 21 pushes the bevel 19 of the connecting rod end 20, so that the connecting rod 8 dives.

[0033] Further preferably, a limit card 22 is provided on the inner side of the upper edge of the cup body 1, and the end of the connecting rod 20 is against the limit card 22; when the lid 2 is closed on the cup body 1, the connecting rod push head 21 is stuck under the limit card 22.

[0034] In order to further enhance the hand feel and prevent retreat, a tip 23 is provided below the limit card 22 , and a limit groove is provided on the upper side of the connecting rod pushing head 21 , and the tip 23 is stuck in the limit groove 24 .

[0035] Furthermore, the switch 12 is a micro switch.

[0036] When the cover 2 is not closed during use, the connecting rod 8 is in the normally open position, the top edge 11 is offset and aligned with the contact 13 of the switch 12, and the driving motor 5 will not start when the button 14 is pressed.

[0037] When the cover 2 is screwed on, the connecting rod pushing head 21 of the cover 2 pushes the bevel 19 of the connecting rod end 20 at the upper end of the connecting rod 8, and the connecting rod 8 moves downward and is in a submerged position. At this time, the top edge pressure frame 9 is located on the same horizontal plane as the contact 13 of the switch 12. When the button 14 is pressed, the top edge pressure frame 9 is driven downward, and the top edge 11 presses the contact 13 of the switch 12, thereby realizing the opening of the drive motor 5 and driving the grinding blade 6 to rotate and grind.

[0038] In the description of the present invention, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside" and the like to indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as limiting the present invention.

[0039] The beneficial effects of this utility model are: 1. It prevents misoperation and ensures user safety, effectively preventing children or people from starting the grinder out of curiosity or accidental touch, thereby reducing the possibility of accidents. 2. It prevents material splashing, ensuring that during the grinding process, the material is always processed in a closed space, preventing powder or granular materials from splashing around, keeping the environment clean, and also reducing material waste.

Claims

1. An electric grinding mill with a safety switch, comprising a cup body and a lid, wherein the cup body is provided with a grinding chamber and an element chamber located below the grinding chamber, wherein the element chamber is provided with a drive motor, and wherein the grinding chamber is provided with a grinding blade, characterized in that: The cup body is provided with a connecting rod with a reset spring, the upper end of the connecting rod abuts against the cover so that the connecting rod can dive, the connecting rod has a normally open position under normal circumstances, and has a submerged position when the connecting rod dives, the connecting rod is provided with a top edge pressure frame, and a reset member is provided between the top edge pressure frame and the connecting rod, so that the top edge pressure frame is pressed to drive the top edge down; the cup body is also provided with a switch on one side of the connecting rod, the switch controls the switch of the driving motor, when the connecting rod is in the submerged position, the top edge is aligned with the contact of the switch, and when the connecting rod is in the normally open position, the top edge is vacant; the cup body is provided with a button, and the button is located on the outside of the top edge pressure frame.

2. The electric grinding mill with a safety switch according to claim 1, characterized in that: The switch is located on the left side of the pressure frame with the top edge, and the top edge is located on the left side of the pressure frame with the top edge and is an inclined surface.

3. The electric grinding mill with a safety switch according to claim 1, characterized in that: The lower part of the connecting rod is provided with a pressing frame through hole in the front-back direction, the middle part of the pressing frame with the top edge is a through rod, the through rod is passed through the pressing frame through hole, and the reset member is a spring.

4. The electric grinding mill with a safety switch according to claim 3, characterized in that: The spring is sleeved outside the penetration rod.

5. The electric grinding mill with a safety switch according to claim 3, characterized in that: The top edge pressing frame is provided with arms on both sides, and the ends of the arms are provided with hooks, so that the arms hold the connecting rod so that the top edge pressing frame has a front and rear travel limit; the top edge is located on the left arm.

6. The electric grinding mill with a safety switch according to claim 3, characterized in that: The lower end of the connecting rod is sunken to form a pressing frame cavity, and the pressing frame with a top edge is located in the pressing frame cavity.

7. The electric grinding mill with a safety switch according to claim 1, characterized in that: A connecting rod end head with a bevel is provided at the upper end of the connecting rod, and a connecting rod pushing head is provided on the cover. When the cover is closed on the cup body, the connecting rod pushing head pushes the bevel of the connecting rod end head, so that the connecting rod dives.

8. The electric grinding mill with a safety switch according to claim 7, characterized in that: A limit card is further provided on the inner side of the upper edge of the cup body, and the end of the connecting rod is against the limit card; when the lid is closed on the cup body, the pushing head of the connecting rod is stuck under the limit card.

9. The electric grinding mill with a safety switch according to claim 8, characterized in that: A top is provided below the limit card, a limit groove is provided on the upper side of the connecting rod pushing head, and the top is clamped in the limit groove.

10. The electric grinding mill with a safety switch according to claim 1, characterized in that: The switch is a micro switch.