CN116168970A - Key knob with gear sense and bean grinder - Google Patents

Key knob with gear sense and bean grinder Download PDF

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Publication number
CN116168970A
CN116168970A CN202310389920.6A CN202310389920A CN116168970A CN 116168970 A CN116168970 A CN 116168970A CN 202310389920 A CN202310389920 A CN 202310389920A CN 116168970 A CN116168970 A CN 116168970A
Authority
CN
China
Prior art keywords
knob
elastic ring
ring piece
key
platform part
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Pending
Application number
CN202310389920.6A
Other languages
Chinese (zh)
Inventor
王光显
顾逞涛
柴恩燕
陈君磊
徐西洋
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Ningbo Hidrotek Co Ltd
Original Assignee
Ningbo Hidrotek Co Ltd
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Ningbo Hidrotek Co Ltd filed Critical Ningbo Hidrotek Co Ltd
Priority to CN202310389920.6A priority Critical patent/CN116168970A/en
Publication of CN116168970A publication Critical patent/CN116168970A/en
Pending legal-status Critical Current

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    • A—HUMAN NECESSITIES
    • A47—FURNITURE; DOMESTIC ARTICLES OR APPLIANCES; COFFEE MILLS; SPICE MILLS; SUCTION CLEANERS IN GENERAL
    • A47J—KITCHEN EQUIPMENT; COFFEE MILLS; SPICE MILLS; APPARATUS FOR MAKING BEVERAGES
    • A47J42/00—Coffee mills; Spice mills
    • A47J42/38—Parts or details
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
    • H01H25/00—Switches with compound movement of handle or other operating part
    • H01H25/06—Operating part movable both angularly and rectilinearly, the rectilinear movement being along the axis of angular movement

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Food Science & Technology (AREA)
  • Switches With Compound Operations (AREA)

Abstract

The invention discloses a key knob with gear sense and a bean grinder provided with the key knob, wherein keys and the knob are integrated into a whole, so that the whole design of the bean grinder is more compact, the key knob can provide a gear sense for a user, and the user experience of a product is improved.

Description

Key knob with gear sense and bean grinder
Technical Field
The invention relates to a key knob, in particular to a key knob with gear sense.
Background
In the process of making coffee, a bean grinder is used to grind coffee beans into powder, and then extract the coffee powder to obtain coffee. The bean grinder is provided with a start-stop button and a timing knob. The start-stop button is used for controlling the start-stop of the bean grinder, and the timing button can set the duration of the bean grinder. With the increasing demands of the market on the industrial design of household appliances, users want to reduce the volume of the products as much as possible and to have a higher integration level, so as to reduce various switches and buttons as much as possible, and to have a better use experience when manipulating the knobs and keys.
Disclosure of Invention
In order to solve the problems, the invention firstly provides a key knob with gear sense, which comprises a knob, a key arranged in the center of the knob, a reset spring and an elastic ring piece; the inner bottom surface of the knob is provided with a plurality of fixed slotted holes positioned on the same circumference, a plurality of clamping claws positioned on the same circumference extend out of the circumference formed by the fixed slotted holes, and flange parts are arranged in the circumferences of the clamping claws; the key extends out of a key rod, a plurality of fins are arranged on a rod body of the key rod, and limit grooves are formed in the fins; the first side surface of the elastic ring piece is provided with a plurality of first columnar bulges which can be matched with the fixed slotted holes, and the second side surface of the elastic ring piece is provided with a plurality of second columnar bulges; the device also comprises a platform part arranged on the machine shell on which the key knob is arranged, and a plurality of gear slots which can be matched with the second cylindrical protrusions and are positioned on the same circumference are arranged on the outer side surface of the platform part; when the button knob is installed on the platform part, the claw penetrates through the platform part to fix the knob on the platform part, the button rod penetrates through the platform part to be abutted against a tact switch arranged on a circuit board in the shell, the flange part of the knob is limited in a limit groove on a fin of the button, a reset spring for the button is sleeved outside the button rod, the elastic ring piece is clamped between the inner bottom surface of the button and the platform part, meanwhile, the first columnar bulge of the elastic ring piece is inserted into a fixed slot hole of the timing knob, so that the knob can drive the elastic ring piece to move together, the second columnar bulge of the elastic ring piece is matched in a gear slot hole of the platform part, and when the elastic ring piece rotates along with the knob, the second columnar bulge continuously slides out from a previous gear slot hole and slides into a next gear slot hole through elastic deformation of the elastic ring piece, so that gear feeling is generated, and continuous click sound is generated.
Further, the fixed slots are arranged continuously to form a circle.
Further, a stop block part is arranged outside the circumference of the claw, and a limit part is also arranged in the circumference of the gear slot hole; through the cooperation of dog portion and spacing portion, can restrict the rotation angle of knob.
Further, the elastic ring piece is made of plastic and comprises two opposite arc sections, wherein the first permanent magnet piece and the second permanent magnet piece are respectively wrapped in the two opposite arc sections, and the polarities of the first permanent magnet piece and the second permanent magnet piece facing the same side face are opposite.
Further, a hall effect sensor is further arranged on the inner side of the platform part, and when the knob is turned, the first permanent magnet sheet and the second permanent magnet sheet can be respectively close to or far from the hall effect sensor.
The invention also provides a bean grinder, which comprises a shell and a key knob with gear sense, wherein the key knob with gear sense comprises a knob for setting bean grinding time, a key arranged at the center of the knob and used for controlling the start and stop of the bean grinder, a reset spring and an elastic ring piece; the inner bottom surface of the knob is provided with a plurality of fixed slotted holes positioned on the same circumference, a plurality of clamping claws positioned on the same circumference extend out of the circumference formed by the fixed slotted holes, and flange parts are arranged in the circumferences of the clamping claws; the key extends out of a key rod, a plurality of fins are arranged on a rod body of the key rod, and limit grooves are formed in the fins; the first side surface of the elastic ring piece is provided with a plurality of first columnar bulges which can be matched with the fixed slotted holes, and the second side surface of the elastic ring piece is provided with a plurality of second columnar bulges; the device also comprises a platform part arranged on the shell, wherein a plurality of gear slots which can be matched with the second cylindrical protrusions and are positioned on the same circumference are arranged on the outer side surface of the platform part; when the button knob is installed on the platform part, the claw penetrates through the platform part to fix the knob on the platform part, the button rod penetrates through the platform part to be abutted against a tact switch arranged on a circuit board in the shell, the flange part of the knob is limited in a limit groove on a fin of the button, a reset spring for the button is sleeved outside the button rod, the elastic ring piece is clamped between the inner bottom surface of the button and the platform part, meanwhile, the first columnar bulge of the elastic ring piece is inserted into a fixed slot hole of the timing knob, so that the knob can drive the elastic ring piece to move together, the second columnar bulge of the elastic ring piece is matched in a gear slot hole of the platform part, and when the elastic ring piece rotates along with the knob, the second columnar bulge continuously slides out from a previous gear slot hole and slides into a next gear slot hole through elastic deformation of the elastic ring piece, so that gear feeling is generated, and continuous click sound is generated.
Further, the fixed slots are arranged continuously to form a circle.
Further, a stop block part is arranged outside the circumference of the claw, and a limit part is also arranged in the circumference of the gear slot hole; through the cooperation of dog portion and spacing portion, can restrict the rotation angle of knob.
Further, the elastic ring piece is made of plastic and comprises two opposite arc sections, wherein the first permanent magnet piece and the second permanent magnet piece are respectively wrapped in the two opposite arc sections, and the polarities of the first permanent magnet piece and the second permanent magnet piece facing the same side face are opposite.
Further, a hall effect sensor is further arranged on the inner side of the platform part, and when the knob is turned, the first permanent magnet sheet and the second permanent magnet sheet can be respectively close to or far from the hall effect sensor.
According to the key knob with the gear sense, disclosed by the invention, the keys and the knob are integrated into a whole, so that the whole design of the bean grinder is more compact, the key knob can provide a gear sense for a user, and the user experience of a product is improved.
The conception, specific structure, and technical effects of the present invention will be further described with reference to the accompanying drawings to fully understand the objects, features, and effects of the present invention.
Drawings
FIG. 1 is a perspective view of a bean grinder in a preferred embodiment of the present invention;
FIG. 2 is a disassembled view of a shift feel key knob of the bean grinder of FIG. 1;
FIG. 3 is a disassembled view of the shift knob of FIG. 1 from another angle;
fig. 4 is a partial cross-sectional view of a shift feel key knob of the bean grinder of fig. 1.
Detailed Description
The following description of the preferred embodiments of the present invention refers to the accompanying drawings, which make the technical contents thereof more clear and easy to understand. The present invention may be embodied in many different forms of embodiments and the scope of the present invention is not limited to only the embodiments described herein.
As shown in fig. 1, a bean grinder 1 according to the present invention includes a housing 2. The shell 2 is provided with a key knob with gear sense and a powder adjusting button 3 according to the invention. The key knob with gear sense comprises a timing knob 5 and a key 4 arranged in the center of the timing knob 5. Pressing the key 4, the bean grinder 1 starts to work; by rotating the timing knob 5, the operating time of the bean grinder 1 can be timed. By rotating the powder adjusting button 3, the granularity of the coffee powder can be controlled and set.
As shown in fig. 2, the key knob with gear sense further comprises a return spring 6 and an elastic ring piece 7.
As shown in fig. 3, the inner bottom surface of the timing knob 5 is provided with a plurality of fixing slots 51 located on the same circumference. In the present embodiment, the fixing slots 51 are continuously arranged to form a circle. A plurality of claws 54 also extend on the inner bottom surface of the timing knob 5 inside the circumference formed by the fixing slots 51. The plurality of claws 54 are also located on the same circumference, and a flange portion 54 is provided in the circumference. The stopper portions 53 are provided outside the circumferences of the plurality of claws 54. In this embodiment, there are four jaws 5. The key 4 extends out of the key lever 41. The key lever 41 is provided with a plurality of fins 42 on the lever body. The fin 42 is provided with a limit groove 43. In this embodiment, there are four fins 42. The elastic ring piece 7 is provided with a plurality of first columnar projections 72 on a first side surface thereof, which are capable of being matched with the fixing slot holes 51, and a plurality of second columnar projections 71 on a second side surface thereof. In the present embodiment, the first columnar projections 72 and the second columnar projections 71 are three each. The elastic ring piece 7 comprises two opposite arc sections, and the first permanent magnet piece 73 and the second permanent magnet piece 74 are respectively wrapped in the opposite arc sections. The first permanent magnet piece 73 and the second permanent magnet piece 74 are oppositely arranged in the N pole and S pole. In the present embodiment, the elastic ring piece 7 is made of plastic, and the first permanent magnet piece 73 and the second permanent magnet piece 74 are arc-shaped, and are wrapped together in the plastic of the elastic ring piece 7 when the elastic ring piece 7 is injection-molded. A platform 8 is provided on the housing 2 of the bean grinder 1. The first side of the platform 8 is provided with a plurality of gear slots 81 on the same circumference that cooperate with the second cylindrical projections 71. In the present embodiment, the gear slots 81 are continuously arranged to form a circle. An arc-shaped limit portion 82 is further provided in the circumference of the gear slot 81. The rotation angle of the timing knob 5 can be restricted by the engagement of the stopper portion 53 and the stopper portion 82.
As shown in fig. 4, when the key knob with a shift feel is mounted on the bean grinder 1, the claw 54 of the timing knob 2 passes through the platform 8, and the timing knob 2 is fixed to the platform 8. The key lever 4 of the key 4 passes through the platform portion 8 to abut on a tact switch 11 provided on a circuit board 10 in the housing 2. The flange 54 of the timing knob 2 is then limited to the limit groove 43 on the fin 42 of the key 4, or the key 4 is mounted on the flange 54 of the timing knob 2 through the limit groove 43. The spring 6 is sleeved outside the key rod 4 of the key 4 and is used for resetting the key 4. The resilient ring piece 7 is sandwiched between the inner bottom surface of the timing button 5 and the first side surface of the platform part 8. The first columnar protrusion 72 of the elastic ring piece 7 is matched in the fixed slot hole 51 of the timing knob 5, and the fixed slot hole 51 is deeper, so that the two are relatively fixed, namely the timing knob 5 can drive the elastic ring piece 7 to move together. The second cylindrical protrusion 71 of the elastic ring piece 7 is matched with the gear slot 81 of the platform part 8, the gear slot 81 is shallower, the elastic ring piece 7 has a certain elasticity, and when the elastic ring piece 7 rotates, the elastic ring piece 7 enables the second cylindrical protrusion 71 to slide out of the previous gear slot 81 and slide into the next gear slot 81 through elastic deformation, namely, the two can move relatively, and meanwhile, a gear sense is provided for people, and continuous clicking sounds are generated. A hall sensor 9 is also provided on the second side of the platform part 8.
When the key 4 is pressed, the key lever 41 of the key 4 may press the tact switch 11, thereby starting or stopping the operation of the bean grinder 1. The knob return spring 6 can automatically return the pressed key 4. The timing button 5 arranged outside the key 4 is rotated, the timing button 5 drives the elastic ring piece 7 to rotate together, the first permanent magnet piece 73 and the second permanent magnet piece 74 which are oppositely arranged along with the N pole and the S pole on the elastic ring piece 7 are close to and far away from the Hall sensor 8, current signals with different directions and sizes are generated in the Hall sensor 8 and are used for setting different working times of the bean grinder 1, and meanwhile, the relative movement between the elastic ring piece 7 and the platform part 8 provides gear sense and sound.
The foregoing describes in detail preferred embodiments of the present invention. It should be understood that numerous modifications and variations can be made in accordance with the concepts of the invention without requiring creative effort by one of ordinary skill in the art. Therefore, all technical solutions which can be obtained by logic analysis, reasoning or limited experiments based on the prior art by the person skilled in the art according to the inventive concept shall be within the scope of protection defined by the claims.

Claims (10)

1. The key knob with the gear sense is characterized by comprising a knob, a key arranged in the center of the knob, a reset spring and an elastic ring piece; the inner bottom surface of the knob is provided with a plurality of fixed slotted holes positioned on the same circumference, a plurality of clamping claws positioned on the same circumference extend out of the circumference formed by the fixed slotted holes, and flange parts are arranged in the circumferences of the clamping claws; the key extends out of a key rod, a plurality of fins are arranged on a rod body of the key rod, and limit grooves are formed in the fins; the first side surface of the elastic ring piece is provided with a plurality of first columnar bulges which can be matched with the fixed slotted holes, and the second side surface of the elastic ring piece is provided with a plurality of second columnar bulges; the device also comprises a platform part arranged on the machine shell on which the key knob is arranged, and a plurality of gear slots which can be matched with the second cylindrical protrusions and are positioned on the same circumference are arranged on the outer side surface of the platform part; when the button knob is installed on the platform part, the claw penetrates through the platform part to fix the knob on the platform part, the button rod penetrates through the platform part to be abutted against a tact switch arranged on a circuit board in the shell, the flange part of the knob is limited in a limit groove on a fin of the button, a reset spring for the button is sleeved outside the button rod, the elastic ring piece is clamped between the inner bottom surface of the button and the platform part, meanwhile, the first columnar bulge of the elastic ring piece is inserted into a fixed slot hole of the timing knob, so that the knob can drive the elastic ring piece to move together, the second columnar bulge of the elastic ring piece is matched in a gear slot hole of the platform part, and when the elastic ring piece rotates along with the knob, the second columnar bulge continuously slides out from a previous gear slot hole and slides into a next gear slot hole through elastic deformation of the elastic ring piece, so that gear feeling is generated, and continuous click sound is generated.
2. The shift knob according to claim 1, wherein the fixing slots are continuously arranged to form a circle.
3. The shift knob according to claim 1, wherein a stopper portion is provided outside a circumference of the claw, and a stopper portion is provided inside a circumference of the shift slot; through the cooperation of dog portion and spacing portion, can restrict the rotation angle of knob.
4. The shift knob according to claim 1, wherein the elastic ring piece is made of plastic and comprises two opposite arc sections, wherein the first permanent magnet piece and the second permanent magnet piece are respectively wrapped in the two opposite arc sections, and the polarities of the first permanent magnet piece and the second permanent magnet piece facing the same side face are opposite.
5. The gear-feel key knob according to claim 4, wherein a hall effect sensor is further provided inside the platform portion, and when the knob is turned, the first permanent magnet piece and the second permanent magnet piece are respectively brought close to or far from the hall effect sensor.
6. The bean grinder is characterized by comprising a shell and a key knob with gear sense, wherein the key knob with gear sense comprises a knob for setting bean grinding time, a key arranged at the center of the knob and used for controlling the start and stop of the bean grinder, a reset spring and an elastic ring piece; the inner bottom surface of the knob is provided with a plurality of fixed slotted holes positioned on the same circumference, a plurality of clamping claws positioned on the same circumference extend out of the circumference formed by the fixed slotted holes, and flange parts are arranged in the circumferences of the clamping claws; the key extends out of a key rod, a plurality of fins are arranged on a rod body of the key rod, and limit grooves are formed in the fins; the first side surface of the elastic ring piece is provided with a plurality of first columnar bulges which can be matched with the fixed slotted holes, and the second side surface of the elastic ring piece is provided with a plurality of second columnar bulges; the device also comprises a platform part arranged on the shell, wherein a plurality of gear slots which can be matched with the second cylindrical protrusions and are positioned on the same circumference are arranged on the outer side surface of the platform part; when the button knob is installed on the platform part, the claw penetrates through the platform part to fix the knob on the platform part, the button rod penetrates through the platform part to be abutted against a tact switch arranged on a circuit board in the shell, the flange part of the knob is limited in a limit groove on a fin of the button, a reset spring for the button is sleeved outside the button rod, the elastic ring piece is clamped between the inner bottom surface of the button and the platform part, meanwhile, the first columnar bulge of the elastic ring piece is inserted into a fixed slot hole of the timing knob, so that the knob can drive the elastic ring piece to move together, the second columnar bulge of the elastic ring piece is matched in a gear slot hole of the platform part, and when the elastic ring piece rotates along with the knob, the second columnar bulge continuously slides out from a previous gear slot hole and slides into a next gear slot hole through elastic deformation of the elastic ring piece, so that gear feeling is generated, and continuous click sound is generated.
7. The bean grinder of claim 6, wherein the fixing slots are continuously arranged to form a circle.
8. The bean grinder of claim 6, wherein a stopper part is provided outside the circumference of the claw, and a limit part is provided inside the circumference of the gear slot; through the cooperation of dog portion and spacing portion, can restrict the rotation angle of knob.
9. The bean grinder of claim 6, wherein a hall effect sensor is further provided at an inner side of the platform part, and the first permanent magnet piece and the second permanent magnet piece are respectively moved toward or away from the hall effect sensor when the knob is turned.
10. The bean grinder of claim 9, wherein a hall effect sensor is further provided at an inner side of the platform part, and the first permanent magnet piece and the second permanent magnet piece are respectively moved toward or away from the hall effect sensor when the knob is turned.
CN202310389920.6A 2023-04-12 2023-04-12 Key knob with gear sense and bean grinder Pending CN116168970A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN202310389920.6A CN116168970A (en) 2023-04-12 2023-04-12 Key knob with gear sense and bean grinder

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN202310389920.6A CN116168970A (en) 2023-04-12 2023-04-12 Key knob with gear sense and bean grinder

Publications (1)

Publication Number Publication Date
CN116168970A true CN116168970A (en) 2023-05-26

Family

ID=86416609

Family Applications (1)

Application Number Title Priority Date Filing Date
CN202310389920.6A Pending CN116168970A (en) 2023-04-12 2023-04-12 Key knob with gear sense and bean grinder

Country Status (1)

Country Link
CN (1) CN116168970A (en)

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