A new knob switch

Abstract

The utility model provides a novel knob switch, it includes the button and hollow encoder welded on the circuit board, hollow encoder is divided into fixed base and the rotation ring of sleeveing in fixed base outside, rotation ring is fixed with the buckle ring, the presser that can axial movement buckles in fixed base inside, with button opposite. Press down presser, make it touch button and open range hood, then rotate buckle ring, rotation ring will follow rotation, thereby select the air volume gear of exhaust fan and lighting device etc, select well, press presser again make it touch button to confirm the air volume or lighting device etc of selection again, when not needing range hood work, press presser makes it touch button can realize the shutdown. Install a switch on whole range hood can realize the multiple operation of range hood, need not set up multiple switch on range hood, convenient to use operation, also do not influence the appearance of machine body, simple and easy.

Description

TECHNICAL FIELD

[0001] The utility model relates to the field of knob switch, especially the knob switch of range hood. BACKGROUND

[0002] The surface of the existing range hood is provided with various switches, such as air volume size switch, lighting switch and power supply master switch. Each switch is displayed on the surface of the hood, and when operating, the corresponding operation can be performed by pressing the relevant switch. Such a hood is not only troublesome to operate, but also affects the appearance of the hood. SUMMARY

[0003] In view of the above shortcomings of the prior art, the utility model aims at providing a simple and convenient range hood knob switch.

[0004] The utility model realizes the above-mentioned purpose in this way:

[0005] A novel knob switch comprises a button welded on a circuit board and a hollow encoder, the hollow encoder is divided into a fixed seat and a rotating ring sleeved outside the fixed seat, the rotating ring is fixed with a clasp, and a presser axially movable is buckled on the inner side of the fixed seat and opposite to the button.

[0006] The clasp is fixed with a ring sleeve outside.

[0007] The outer wall of the rotating ring is provided with a groove in the middle lower part, and the inner wall of the clasp is provided with a hook which can be sunk into the groove.

[0008] The inner wall of the fixed seat is provided with an axial groove two, the groove two is provided with a stopper, the outer wall of the presser is provided with a hook two, and the hook two can slide along the groove two and be buckled on the stopper.

[0009] The presser is of a hollow structure, and a pressing strip for pressing the button contact is fixed in the cavity.

[0010] The circuit board is provided with various operation indicator lamps.

[0011] The utility model has the advantages that the presser is pressed to touch the button to turn on the hood, then the clasp is rotated, the rotating ring is rotated to select the air volume position of the hood and the lighting device, etc., the presser is pressed again to touch the button to confirm the selection of the air volume or the lighting device, etc., and the presser is pressed to touch the button to turn off the hood when the hood is not needed to work. One switch is installed on the whole hood to realize various operations of the hood, various switches are not needed to be arranged on the hood, the use and operation are convenient, the appearance of the hood is not affected, and the utility model is simple and elegant. BRIEF DESCRIPTION OF DRAWINGS

[0012] The utility model will be further described in combination with the drawings and embodiments.

[0013] Figure 1 It is a three-dimensional structure schematic view of the utility model;

[0014] Figure 2 It is Figure 1 It is a structure schematic view after the box body is installed;

[0015] Figure 3 It is Figure 1 It is a partial cutaway exploded view. DETAILED DESCRIPTION

[0016] Referring to Figures 1 to 3 A novel knob switch, which comprises a button 2 welded on a circuit board 1 and a hollow encoder 3, the hollow encoder 3 is divided into a fixed seat 31 and a rotating ring 32 sleeved outside the fixed seat 31, the rotating ring 32 is fixed with a clasp 4, and an axially movable pressing piece 5 is buckled on the inner side of the fixed seat 31 and opposite to the button 2. Pressing the pressing piece 5 makes it touch the button 2 to turn on the smoke machine, then rotating the clasp 4, the rotating ring will be rotated to select the air volume position of the air extractor and the lighting device, etc., after selection, pressing the pressing piece 5 again to make it touch the button 2 to confirm the selected air volume or lighting device, etc.; when the smoke machine is not needed to work, pressing the pressing piece 5 to make it touch the button 2 can realize the shutdown. Installing a switch on the whole smoke machine can realize the multiple operations of the smoke machine, without setting multiple switches on the smoke machine, which is convenient for use and operation, and does not affect the appearance of the machine body, simple and elegant.

[0017] In order to facilitate the rotation of the clasp 4 and the rotating ring 32, the clasp 4 is fixed with a ring sleeve 6 outside.

[0018] Among them, the outer wall of the rotating ring 32 is provided with a groove 7 in the lower part, and the inner wall of the clasp 4 is provided with a hook 8 which can be sunk into the groove 7. When the hook 8 is sunk into the groove 7, the quick connection of the clasp 4 and the rotating ring 32 can be realized, which is convenient for installation.

[0019] In addition, the inner wall of the fixed seat 31 is provided with an axial groove two 9, the groove two 9 is provided with a stop block 10, and the outer wall of the pressing piece 5 is provided with a hook two 11, the hook two 11 can slide along the groove two 9 and can be buckled on the stop block 10. When the hook two 11 is sunk into the groove two 9 and clamps the stop block 10, the pressing piece 5 cannot be taken out of the fixed seat 31, but can only move within a certain range in the axial direction.

[0020] In order to facilitate the pressing of the button 2 by the pressing piece 5, the pressing piece 5 is of hollow structure, and a pressing strip 12 for pressing the button contact is fixed in the cavity. When pressing, only the pressing strip 12 contacts the button contact.

[0021] In order to let the user naked eye to see the various operations of the range hood, the circuit board 1 is installed with various operation indicator light 13. The indicator light in work, can pass through the glass shell of the range hood show to the user, further facilitate operation.

Claims

1. A new type of rotary knob switch characterized in that: The button (2) and hollow encoder (3) are welded on the circuit board (1), the hollow encoder (3) is divided into a fixed seat (31) and a rotating ring (32) sleeved outside the fixed seat (31), the rotating ring (32) is fixed with a clasp (4), and an axially movable pressing piece (5) is buckled on the inner side of the fixed seat (31) and opposite to the button (2).

2. A novel rotary knob switch as claimed in claim 1, wherein: The clasp (4) is fixed with a ring sleeve (6) outside.

3. A novel rotary knob switch according to claim 1 or 2, characterized in that: A groove (7) is formed in the lower part of the outer wall of the rotating ring (32), and a hook (8) is formed in the inner wall of the clasp (4) and can be sunk into the groove (7).

4. A novel knob switch according to claim 1 or 2, characterized in that: An axial groove two (9) is formed in the inner wall of the fixed seat (31), a stop block (10) is left in the groove two (9), a hook two (11) is arranged on the outer wall of the pressing piece (5), and the hook two (11) can slide along the groove two (9) and be buckled on the stop block (10).

5. A novel rotary knob switch as claimed in claim 4, wherein: The pressing piece (5) is a hollow structure, and a pressing strip (12) for pressing the contact of the button (2) is fixed in the cavity.

6. A new knob switch as claimed in claim 1, wherein: Various operation indicator lamps (13) are installed on the circuit board (1).

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