阅读说明：本技术 一种旋钮按钮嵌套式机械开关 (Knob button nested formula mechanical switch ) 是由 刘元卉 叶丰 申志贤 于 2018-09-03 设计创作，主要内容包括：一种旋钮按钮嵌套式机械开关,包括旋钮、按钮、旋转套、压块、第一弹性件、第一活动弹片、第一固定触点、压杆、第二活动弹片、第二固定触点和第二弹性件,旋转套在旋钮的带动下旋转,压块至少有两个并能在旋转套的作用下向下运动,第一弹性件使被下压后的压块具有向上运动的趋势,第一活动弹片能随压块向下运动并与第一固定触点相电接触,第二活动弹片能随压杆向下运动并与第二固定触点相电接触。该机械开关旋钮旋转后启用相应的档位,而按下按钮后能带动压杆向下运动,进而可触发开关,用于吸油烟机时,从而使不同的风机档位均与同一照明开关相配合,既满足了照明开关应能独立控制的国标要求,又大大简化了旋钮开关的结构,便于用户操作。(The utility model provides a knob button nested formula mechanical switch, including the knob, the button, the rotary sleeve, the briquetting, first elastic component, first activity shell fragment, first fixed contact, the depression bar, second activity shell fragment, second fixed contact and second elastic component, the rotary sleeve is rotatory under the drive of knob, the briquetting has two at least and can be in the effect of rotary sleeve downstream, first elastic component makes the briquetting after being pushed down have the trend of upward movement, first activity shell fragment can be along with the briquetting downstream and with first fixed contact looks electrical contact, second activity shell fragment can be along with the depression bar downstream and with second fixed contact looks electrical contact. This mechanical switch knob launches corresponding gear after rotatory, and can drive the depression bar downstream after pressing the button, and then but trigger switch for when range hood, thereby make the fan gear of difference all cooperate with same lighting switch, both satisfied lighting switch should be able to independent control's national standard requirement, simplified knob switch's structure again greatly, the user operation of being convenient for.)

1. The utility model provides a nested formula mechanical switch of knob button, includes knob (1) and button (2), its characterized in that still including:

the rotary sleeve (3) is matched with the knob (1) and is driven by the knob to rotate;

the number of the pressing blocks (4) is at least two, the pressing blocks are distributed at intervals along the circumferential direction of the rotating sleeve (3), and the pressing blocks (4) can move downwards under the action of the rotating sleeve (3);

the first elastic piece (5) enables the pressed pressing block (4) to have a tendency of moving upwards;

the first movable elastic sheet (6) is arranged on the pressing block (4) and can move downwards along with the pressing block (4);

the first fixed contact (7) is used for being electrically contacted with the first movable elastic sheet (6) moving downwards;

the pressure lever (8) is arranged below the button (2) and can move downwards under the action of the button (2);

the downward moving pressure lever (8) can act on the second movable elastic sheet (9);

the second fixed contact (10), under the state that the pressure bar (8) is pressed down, the second movable elastic sheet (9) is pressed by the acting force of the pressure bar and is electrically contacted with the second fixed contact (10); and

and the second elastic piece (11) enables the pressed compression rod (8) to have the tendency of moving upwards.

2. The knob-button nested mechanical switch of claim 1, wherein: a fixed side plate (12) is arranged on the outer side of the pressing block (4), the first fixed contact (7) is installed on the fixed side plate (12), and the first movable elastic sheet (6) is located right above the first fixed contact (7).

3. The knob-button nested mechanical switch of claim 2, wherein: the pressing block (4) is provided with a through hole (41), the first movable elastic sheet (6) penetrates through the through hole (41), the two ends of the first movable elastic sheet (6) are provided with a first contact arm (61) and a second contact arm (62) which are exposed out of the pressing block, the first fixed contact (7) is provided with a corresponding first contact (71) and a corresponding second contact (72), a pressure spring (13) is installed in the through hole (41), and the two ends of the pressure spring (13) are respectively abutted to the top of the through hole (41) and the first movable elastic sheet (6).

4. The knob-button nested mechanical switch of claim 2, wherein: the clamping device is characterized by further comprising a lower base body (14), the fixed side plate (12) is installed on the lower base body (14), and the first elastic piece (5) is a first spring which is elastically abutted between the lower base body (14) and the pressing block (4).

5. The mechanical switch of claim 4, wherein: still including upper cover (15), adapter sleeve (16), buckle closure (17) and inferior valve (18), adapter sleeve (16) are connected between knob (1) and swivel nut (3), buckle closure (17) are located the outer lane of swivel nut (3) is detained on upper cover (15), inferior valve (18) with upper cover (15) are connected and form the installation cavity between inferior valve and upper cover, base member (14) are located down in the installation cavity and fix on inferior valve (18).

6. The mechanical switch of claim 5, wherein: the connecting device is characterized by further comprising a waterproof sleeve (19) sleeved on the pressure rod (8), wherein the edge of the waterproof sleeve (19) is sealed with the inner wall of the connecting sleeve (16).

7. The knob-button nested mechanical switch of claim 1, wherein: the pressing rod type electric connector further comprises a pressing rod bottom shell (20) and a pressing rod bottom cover (21) installed on the pressing rod bottom shell, and a cavity used for containing the second movable elastic sheet (9) and the second fixed contact (10) is formed between the pressing rod bottom shell (20) and the pressing rod bottom cover (21).

8. The knob-button nested mechanical switch of claim 7, wherein: the lower end of the pressing rod (8) extends into the cavity, a guide structure for guiding the vertical movement of the pressing rod (8) is formed between the pressing rod (8) and the pressing rod bottom cover (21), and the second elastic piece (11) is a second spring which is sleeved on the pressing rod (8) and two ends of which elastically abut against the pressing rod (8) and the pressing rod bottom cover (21).

9. The knob-button nested mechanical switch of claim 7, wherein: a vertical sliding groove (81) and a lock hole (82) formed below the vertical sliding groove are formed in the side portion of the pressure rod (8), the upper end of a locking rod (22) is arranged in the vertical sliding groove (81) in a sliding mode, and the lower end of the locking rod (22) is used for being locked with the lock hole (82).

10. The knob-button nested mechanical switch of any one of claims 1 to 9, wherein: the pressing block (4) is arranged below the rotary sleeve (3), and a convex part (31) used for being propped against the pressing block (4) is arranged at the bottom of the rotary sleeve (3).

Technical Field

The invention relates to a mechanical switch, in particular to a knob button nested mechanical switch.

Background

The existing range hood is generally provided with a mechanical switch for adjusting the gear of a fan and turning on and off an illuminating lamp, and the mechanical switch is a knob type switch. At present, the national standard GB/T17713 and 2011 of the range hood requires that the lighting switch can be independently controlled, and if the lamp can be independently controlled under each fan gear, two knob gears of fan on + lamp on and fan on + lamp off are required to be correspondingly arranged for each fan gear (for example, under the condition of fan gear, the knob needs two gears of fan gear on + lamp on and fan gear off). Therefore, when the gear of the fan of the range hood is more, the gear of the knob can be more, the structure of the knob switch is more complex, the manufacturing cost is higher, and the operation of a user is not convenient. In summary, the existing knob switch structure is yet to be further improved.

Disclosure of Invention

The technical problem to be solved by the invention is to provide a knob button nested mechanical switch with simple structure and convenient operation aiming at the current situation of the prior art.

The technical scheme adopted by the invention for solving the technical problems is as follows: this nested formula mechanical switch of knob button, including knob and button, its characterized in that still including:

the rotary sleeve is matched with the knob and is driven by the knob to rotate;

the pressing blocks are at least two and are distributed at intervals along the circumferential direction of the rotating sleeve, and the pressing blocks can move downwards under the action of the rotating sleeve;

the first elastic piece enables the pressed pressing block to have a tendency of moving upwards;

the first movable elastic sheet is arranged on the pressing block and can move downwards along with the pressing block;

the first fixed contact is used for being electrically contacted with the first movable elastic sheet which moves downwards;

the pressing rod is arranged below the button and can move downwards under the action of the button;

the downward moving pressing rod can act on the second movable elastic sheet;

the second movable elastic sheet is pressed by the action force of the lever to be in electrical contact with the second fixed contact when the pressure lever is pressed down; and

the second elastic piece makes the pressed pressure lever have the tendency of moving upwards.

The first fixed contact can have various mounting structures, preferably, a fixed side plate is arranged on the outer side of the pressing block, the first fixed contact is mounted on the fixed side plate, and the first movable elastic sheet is located right above the first fixed contact.

The first movable elastic sheet and the first fixed contact can be in various contact structures, preferably, a through hole is formed in the pressing block, the first movable elastic sheet penetrates through the through hole, a first contact arm and a second contact arm exposed out of the pressing block are arranged at two ends of the first movable elastic sheet, the first fixed contact is provided with a corresponding first contact and a corresponding second contact, a pressure spring is installed in the through hole, and two ends of the pressure spring are respectively abutted against the top of the through hole and the first movable elastic sheet.

Preferably, the mechanical switch further comprises a lower base body, the fixed side plate is mounted on the lower base body, and the first elastic piece is a first spring elastically abutted between the lower base body and the pressing block.

Further preferably, the mechanical switch further comprises an upper cover, a connecting sleeve, a buckling cover and a lower cover, wherein the connecting sleeve is connected between the knob and the rotary sleeve, the buckling cover is arranged on the outer ring of the rotary sleeve and buckled on the upper cover, the lower cover is connected with the upper cover to form a mounting cavity between the lower cover and the upper cover, and the lower base body is arranged in the mounting cavity and fixed on the lower cover.

In order to avoid water from entering the interior of the switch from the pressure rod, the mechanical switch further comprises a waterproof sleeve which is sleeved on the pressure rod, and the edge of the waterproof sleeve is sealed with the inner wall of the connecting sleeve.

Preferably, the mechanical switch further comprises a bottom shell of the pressure lever and a bottom cover of the pressure lever, wherein the bottom shell of the pressure lever is mounted on the bottom shell of the pressure lever, and a cavity for accommodating the second movable elastic sheet and the second fixed contact is formed between the bottom shell of the pressure lever and the bottom cover of the pressure lever.

In order to guide the vertical movement of the pressing rod, the lower end of the pressing rod extends into the cavity, a guide structure for guiding the vertical movement of the pressing rod is formed between the pressing rod and the pressing rod bottom cover, and the second elastic piece is a second spring which is sleeved on the pressing rod and two ends of the second elastic piece are elastically abutted between the pressing rod and the pressing rod bottom cover.

In order to lock the pressed pressure lever, a vertical sliding groove and a lock hole arranged below the vertical sliding groove are formed in the side part of the pressure lever, the upper end of a locking rod is arranged in the vertical sliding groove in a sliding mode, and the lower end of the locking rod is used for being locked with the lock hole.

Preferably, the lock hole is of an existing peach heart structure. Therefore, when the pressure rod is pressed down from the initial state, the locking rod can be locked in the lock hole to prevent the pressure rod from moving, and after the pressure rod is further pressed down, the locking rod is separated from the lock hole to enable the pressure rod to move upwards to reset to the initial state.

Preferably, in any one of the above aspects, the press block is disposed below the rotary sleeve, and a protrusion for abutting against the press block is disposed at a bottom of the rotary sleeve.

Compared with the prior art, the invention has the advantages that: the briquetting in this nested formula mechanical switch of knob button has at least two and along the circumference interval distribution of rotary sleeve, the knob drives the briquetting downstream through rotary sleeve after the rotation, the switch-on is realized to the gear circuit, and then launch corresponding gear, and can drive the depression bar downstream after pressing the button, and then realize the circuit switch-on, this mechanical switch is used for range hood, because knob and button mutually independent work, thereby make the fan gear of difference all cooperate with same lighting switch, both satisfied lighting switch can be able to independent control's national standard requirement, knob switch's structure has been simplified greatly again, be convenient for user operation.

Drawings

FIG. 1 is a schematic structural diagram of an embodiment of the present invention;

FIG. 2 is a structural cross-sectional view of an embodiment of the present invention in an initial state;

FIG. 3 is a partial structural diagram of the embodiment of the present invention in an initial state;

FIG. 4 is a partial structural view of the embodiment of the present invention in a state where the briquette is pressed down;

FIG. 5 is a structural sectional view of the embodiment of the present invention in a state where the briquette is pressed down;

FIG. 6 is a partial schematic view of an embodiment of the present invention;

FIG. 7 is a partial structural diagram of the embodiment of the present invention in an initial state;

FIG. 8 is a cross-sectional view of the structure of the embodiment of the present invention in a state where the button is pressed;

FIG. 9 is a partial schematic view of an embodiment of the present invention;

fig. 10 is an exploded perspective view of fig. 9.

Detailed Description

The invention is described in further detail below with reference to the accompanying examples.

As shown in fig. 1 to 10, the mechanical switch nested in a knob button in this embodiment includes a knob 1, a button 2, a rotating sleeve 3, a pressing block 4, a first elastic member 5, a first movable elastic sheet 6, a first fixed contact 7, a pressing rod 8, a second movable elastic sheet 9, a second fixed contact 10, a second elastic member 11, a fixed side plate 12, a pressing spring 13, a lower base 14, an upper cover 15, a connecting sleeve 16, a buckle cover 17, a lower shell 18, a waterproof sleeve 19, a pressing rod bottom cover 20, a pressing rod bottom cover 21, a locking rod 22, and other main components.

Wherein, the knob 1 is connected with the rotary sleeve 3 through a connecting sleeve 16, so that the rotary sleeve 3 can synchronously rotate under the driving of the knob 1. The cover 17 is provided on the outer ring of the rotary sleeve 3 and is fastened to the upper cover 15, the lower case 18 is connected to the upper cover 15 to form a mounting cavity between the lower case and the upper cover, the lower base 14 is provided in the mounting cavity and fixed to the lower case 18, and the fixed side plate 12 is mounted on the lower base 14. The waterproof sleeve 19 is sleeved on the upper end part of the pressure rod 8, the waterproof sleeve 19 is installed on the connecting sleeve 16, and the edge of the waterproof sleeve 19 is sealed with the inner wall of the connecting sleeve 16.

The briquetting 4 is located the inboard of fixed curb plate 12, and briquetting 4 has three and along the circumference interval distribution of swivel housing 3, and briquetting 4 can move down under swivel housing 3's effect. Specifically, the pressing block 4 is disposed below the rotary sleeve 3, and the bottom of the rotary sleeve 3 is provided with a protrusion 31 for abutting against the pressing block 4. The three pressing blocks 4 correspond to three different gears, and when the convex part 31 of the rotary sleeve 3 abuts against the different pressing blocks 4, different gears are triggered. The first elastic piece 5 is a first spring which is elastically abutted between the lower base 14 and the pressing block 4, and the pressing block 4 which is pressed downwards has a tendency of moving upwards;

the first movable elastic sheet 6 is arranged on the pressing block 4 and can move downwards synchronously with the pressing block 4; the first fixed contact 7 is arranged on the fixed side plate 12 and is positioned right below the first movable elastic sheet 6, and the first movable elastic sheet 6 can move downwards to be in electrical contact with the first fixed contact 7. Specifically, a through hole 41 is formed in the pressing block 4, the first movable elastic sheet 6 penetrates through the through hole 41, a first contact arm 61 and a second contact arm 62 exposed out of the pressing block 4 are arranged at two ends of the first movable elastic sheet 6, the first fixed contact 7 is provided with a corresponding first contact 71 and a corresponding second contact 72, a pressure spring 13 is installed in the through hole 41, and two ends of the pressure spring 13 are respectively abutted against the top of the through hole 41 and the first movable elastic sheet 6.

The pressure lever 8 is arranged below the button 2 and can move downwards under the action of the button 2. The downward moving pressing rod 8 can act on the second movable elastic sheet 9, the second fixed contact 10 is arranged below the pressing rod 8, and the second movable elastic sheet 9 is electrically contacted with the second fixed contact 10 under the acting force of the pressing rod in a pressing state of the pressing rod.

The pressing rod bottom shell 20 and the pressing rod bottom cover 21 are arranged below the pressing rod 8, the pressing rod bottom cover 21 is installed on the pressing rod bottom shell 20, and a cavity for accommodating the second movable elastic sheet 9 and the second fixed contact 10 is formed between the pressing rod bottom shell 20 and the pressing rod bottom cover 21 so as to prevent the second movable elastic sheet 9 and the second fixed contact 10 from being exposed. The lower end of the pressure lever 8 extends into the cavity, and a guide structure for guiding the vertical movement of the pressure lever 8 is formed between the pressure lever 8 and the pressure lever bottom cover 21. The second elastic element 11 is a second spring which is sleeved on the pressure lever 8 and two ends of which are elastically abutted between the pressure lever 8 and the pressure lever bottom cover 21, and the second spring enables the pressure lever 8 which is pressed downwards to have a tendency of moving upwards.

The side portion of the pressure lever 8 is provided with a vertical sliding groove 81 and a lock hole 82 arranged below the vertical sliding groove, the upper end of the locking rod 22 is slidably arranged in the vertical sliding groove 81, and the lower end of the locking rod 21 is used for being locked with the lock hole 82. The lock hole 82 adopts the existing peach heart structure. Thus, when the pressing rod 8 is pressed down from the initial state, the locking rod 22 can be locked in the lock hole 82 to prevent the movement of the pressing rod, and when the pressing rod 8 is further pressed down, the locking rod 22 is separated from the lock hole 82 to enable the pressing rod 8 to move upwards to be reset to the initial state.

The working principle of the knob button nested mechanical switch is as follows:

the knob function: the rotary knob 1 is rotated to drive the rotary sleeve 3 to rotate through the connecting sleeve 16, when the rotary sleeve 3 rotates to a certain gear, the convex part 31 at the bottom of the rotary sleeve 3 just presses the pressing block 4 corresponding to the gear, and the pressing block 4 drives the first movable elastic sheet 6 to fall to contact with the first fixed contact 7, so that the gear circuit is switched on.

Button functions: by pressing the button 2, the button 2 drives the pressing rod 8 to move downwards, the pressing rod 8 extrudes the second movable elastic sheet 9 in the pressing and descending process, the second movable elastic sheet 9 is deformed and then contacts with the second fixed contact 10 to realize a passage, and meanwhile, the pressing rod 8 realizes self-locking through the locking rod 22; when the button 2 is pressed again under the self-locking state of the pressure lever 8, the pressure lever 8 is unlocked and moves upwards to reset, and the circuit is broken.

When the knob button nested mechanical switch is used for a range hood, the knob 1 is used for adjusting the gear of a fan, and the button 2 is used for opening and closing an illuminating lamp on the range hood. Because knob 1 and button 2 work independently each other to make different fan gears all cooperate with same light switch, both satisfied light switch should be able to independent control's national standard requirement, simplified knob switch's structure again greatly, the user operation of being convenient for.