Knob structure
Technical field
The present invention relates to a kind of knob structure, particularly a kind of knob structure that is applied to rotary switch control structure field.
Background technology
The structure function of all kinds of household appliances is maked rapid progress in the market, introduces to the market as the electric equipment products of various face shapings spring up like bamboo shoots after a spring rain, thereby requires also more and more higher to the surface structure of the new product that appears on the market.Usually, the product external surfaces control element is provided with the change of position, all can cause the variation of product interior spatial structure.Therefore, how to allow the more apparent top grade of product appearance, and effectively utilize the product inner space, it is more humane that control of product element is provided with, so that improve market share, reach the problem of maximum economic benefit, become the problem that present every profession and trade is paid close attention to.
Many household appliances on the market (as electric kettle, baking box, micro-wave oven, toaster etc.) all will be used the knob controlling structure, carry out work with the control electronic installation.In the prior art, knob structure normally directly is provided with coupling shaft at the center of knob body, thereby potentiometer is controlled (as: in the electric kettle field, thereby to come the CONTROLLED POTENTIAL device to the boiling water insulation with knob structure usually, make boiling water remain on uniform temperature; In baking box, micro-wave oven, toaster field,, control the heat time heating time of food normally by potentiometer is controlled.)。As the applicant on May 18th, 2004 apply for, the patent No. is: the Chinese utility model patent of ZL2004200461160, it comprises: a kind of toaster electronic timer, comprise printed circuit board (PCB), potentiometer, knob and shell etc., be provided with a toothed fluted disc with the potentiometer concentric position on the described printed circuit board (PCB), with the concentric knob of potentiometer on fix a flexible projection and be meshed with fluted disc.
Disclose a kind of knob structure in the above-mentioned patent, by rotating the gear of this knob structure scalable potentiometer, thus the working time of control toaster (toaster).But as because appearance design needs, need to insert the mechanical drive flap hand of more complicated in this knob structure, when being combined into a knob assembly, this knob structure can't be realized.
Summary of the invention
According to existing deficiency in the prior art, fundamental purpose of the present invention provides and a kind ofly can other control gear be set in the knob body, makes the more apparent top grade of product appearance, saves the knob structure that product inside is provided with the space.
According to existing deficiency in the prior art, another object of the present invention provides a kind of knob structure that limits the knob body anglec of rotation.
According to existing deficiency in the prior art, a further object of the invention provides the knob structure that can send the ticktack sound when a kind of knob body rotates, strengthen the control feel.
For solving the problems of the technologies described above, the technical solution adopted in the present invention is: a kind of knob structure, it comprises knob body, linkage unit, described knob body is structure ringwise, the outside surface of described knob body is provided with the gear mark, and described linkage unit is fixedly connected in the loop configuration in the described knob body; The periphery of described linkage unit is connected with connection rib in the loop configuration of described linkage unit ringwise, and described connection rib is separated into two chambeies of stepping down with described linkage unit; Described connection rib is provided with coupling shaft or has the hole that matches with coupling shaft.
The body of knob described in the present invention comprises outer ring structure and interior ring structure, be provided with at least two mating grooves between described outer ring structure and the described interior ring structure, the pin on the described linkage unit makes described linkage unit fixedly connected with described knob body with plugging together of described mating groove.The bottom of described outer ring structure is provided with at least one stopper slot.
Be socketed with the lampshade unit in the circular cavity of the body of knob described in the present invention, described lampshade unit is the material of light-permeable; Described lampshade unit comprises Transparent lamp shade, flange portion, and the junction of described flange portion and described Transparent lamp shade is formed with at least two scallop holes.Described flange portion is provided with the locating convex block that matches with described stopper slot.
The front end of pin described in the present invention is provided with the pin that is complementary with described mating groove, and described pin is the trapezium structure that the front end area is little, the rear end area is big.In described pin, have only described pin to plug together in described mating groove.
Ring structure is provided with buckle in described in the present invention, and described buckle and described mating groove are arranged side by side, and the buckling parts of described buckle front end protrudes from the bottom of described outer ring structure.In confined state, described buckle is stuck in the upper surface of described flange portion.
Scallop hole described in the present invention be provided with number and described pin that number is set is identical.
Be provided with the device that sends the ticktack sound between body of knob described in the present invention and the described lampshade unit, this device is to be formed by fore-set unit and described lampshade unit combination.
The chamber of stepping down described in the present invention is the fan-shaped cavities that two areas equate.
The invention has the beneficial effects as follows:, can make the more apparent top grade of product appearance, saving product inside that the space is set owing in the described knob body other control gear can also be set.Because the structure of the described knob body anglec of rotation of restriction can be set in this knob structure, so manufacturer can be according to the design needs, size by changing described stopper slot and (or) described locating convex block be provided with the position or (with) number, reach the anglec of rotation that changes described knob body.Owing to be provided with the device that sends the ticktack sound between described knob body and the described lampshade unit,, strengthen the knob controlling feel so described knob body can send the ticktack sound when rotating.
Description of drawings
Fig. 1 is a structural representation of the present invention;
Fig. 2 is the rear view of knob body among the present invention;
Fig. 3 is the perspective view of linkage unit among the present invention;
Fig. 4 is the synoptic diagram that lampshade unit and fore-set unit are installed among the present invention;
Fig. 5 is the mated condition synoptic diagram of lampshade unit and fore-set unit among the present invention;
Fig. 6 be among the present invention the fore-set unit partly cut open synoptic diagram;
Fig. 7 is a user mode synoptic diagram of the present invention;
Fig. 8 is the rear view of control panel;
Fig. 9 is the user mode vertical view that removes behind the control panel;
Figure 10 is that Fig. 9 place blows the schematic perspective view under the state.
The marking explanation of each several part structure in the accompanying drawing:
1-knob body, the 2-linkage unit, 3-lampshade unit, 4-fore-set unit, the 5-PCB plate, the 6-control panel, 7-flap hand, the 8-button, the 9-potentiometer, 11-gear mark, the 12-stopper slot, the 13-buckle, the 14-bulge loop, the outer ring structure of 15-, ring structure in the 16-, the 17-mating groove, the 18-screens, the 19-double-screw bolt, the 21-pin, the 22-coupling shaft, the 23-connection rib, the 24-chamber of stepping down, the 211-pin, the 31-Transparent lamp shade, 32-flap hand hole, 33-disjunctor position, the 34-contiguous block, the 35-flange portion, the 36-scallop hole, the 37-pilot hole, the 38-fluted disc, 41-fore-set seat, the 42-fore-set, the 43-spring, the fixedly connected portion of 411-, the 412-fixed orifice, the 413-cavity, the 421-block face, the 61-joint pin, the 62-locating convex block, the 63-deck.
Embodiment
Shown in Figure of description, this preferred embodiment mainly comprises knob body 1, linkage unit 2, lampshade unit 3, is provided with the device that can send the ticktack sound between described knob body 1 and the described lampshade unit 3.In implementing process of the present invention, also can described lampshade unit 3 be set, and described knob body 1 and described linkage unit 2 only are set according to actual needs, reach fundamental purpose of the present invention.In order to allow those skilled in the art understand the present invention better, in the present embodiment, also elaborated the mode of operation that applies the present invention on the toaster and explained.
As shown in Figure 1 and Figure 2, described knob body 1 is structure ringwise, described knob body 1 comprises outer ring structure 15 and the interior ring structure 16 that radially is provided with, also be protruding with bulge loop 14 on the described outer ring structure 15, described outer ring structure 15, described in ring structure 16 and described bulge loop 14 structure that all is one of the forming.The outside surface one injection molded of described bulge loop 14 has gear mark 11, and described gear mark 11 is the hollow housing structure, and described gear mark 11 protrudes from the outside surface of described bulge loop 14.Also be provided with screens 18 on the inwall of described gear mark 11.As shown in Figure 7, in the installment state of described knob body 1, described bulge loop 14 forms the control periphery of described knob body 1 with described gear mark 11.Ring structure 16 is the circle of a sealing in described, and is positioned at described outer ring structure 15.The sidewall of ring structure 16 is provided with two double-screw bolts 19 in described, described double-screw bolt 19 the position is set near described gear mark 11.
As shown in Figure 2, the bottom of described outer ring structure 15 offers two stopper slots 12, and described interior ring structure 16 is provided with buckle 13, is provided with three mating grooves 17 between described outer ring structure 15 and the described interior ring structure 16.Described buckle 13 is arranged side by side with described mating groove 17, and the buckling parts of described buckle 13 front ends protrudes from the bottom of described outer ring structure 15.
As shown in Figure 3, the periphery of described linkage unit 2 is connected with the connection rib 23 of swallow-tail form ringwise in the loop configuration of described linkage unit 2, and described connection rib 23 is separated into the fan-shaped chamber 24 of stepping down that two areas equate with described linkage unit 2.The dovetail center of described connection rib 23 is provided with coupling shaft 22, and the through hole on described coupling shaft 22 and the potentiometer 9 is complementary.Described linkage unit 2 is fixedly connected in the loop configuration in the described knob body 1.(when having coupling shaft 22 on the described potentiometer 9, can rise on the described connection rib 23 and establish the hole that matches with described coupling shaft 22.This hole can be a through hole, also can be blind hole.)
Described linkage unit 2 is provided with three pins 21, and the front end of each described pin 21 is provided with the pin 211 that is complementary with described mating groove 17, and described pin 211 is the trapezium structure that the front end area is little, the rear end area is big.Described pin 211 plugs together in described mating groove 17, and described pin 211 plugs together with described mating groove 17, and described linkage unit 2 is fixedlyed connected with described knob body 1.
As shown in Figure 4, be socketed with lampshade unit 3 in the circular cavity of described knob body 1, described lampshade unit 3 is the material of light-permeable, and the material of light-permeable is meant that (described lampshade unit 3 also can adopt lighttight material to transparent or semitransparent material as required.)。As shown in Figure 5, described lampshade unit 3 comprises Transparent lamp shade 31, flange portion 35.Described Transparent lamp shade 31 is provided with flap hand hole 32, fluted disc 38, and described flap hand hole 32 is opened on the front end face of Transparent lamp shade 31, and described fluted disc 38 is arranged on the side of described Transparent lamp shade 31.Described fluted disc 38 can cooperatively interact with described fore-set unit 4, when described knob body 1 is rotated, sends ticktack sound (being the device that sends the ticktack sound).Toothing or two kinds of forms of outer toothing in described fluted disc 38 can be arranged to, in this embodiment, we select interior toothing for use.The number of internal tooth can be provided with according to the gear stages of rotary switch in the described fluted disc 38, and as in the present embodiment, rotary switch is set to 1 to 8 totally 8 gears, and each gear is divided into two and half gears, so the number of internal tooth is 15.The two sides of described flange portion 35 are protruding with two contiguous blocks 34.Described flange portion 35 is to be connected by three disjunctor positions 33 with described Transparent lamp shade 31, and three described disjunctor positions 33 are divided into three scallop holes 36 with the junction of described flange portion 35 and described Transparent lamp shade 31.The centre of each described disjunctor position 33 also is respectively arranged with pilot hole 37.
As shown in Figure 8, in the present embodiment, two locating convex blocks 62 that match with described stopper slot 12 relatively are arranged on the control panel 6.Wherein, two described locating convex blocks 62 are the purpose that is oppositely arranged, be the described knob body 1 of restriction when rotated, angle is controlled in 60 ° the scope.(described locating convex block 62 also can protrude and be arranged on the described flange portion 35.)
Described fore-set unit 4 is arranged in the enclosure interior cavity structure of described gear mark 11, as shown in Figure 6, described fore-set unit 4 comprises fore-set seat 41, fore-set 42, spring 43, described fore-set seat 41 is provided with fixedly connected 411, cavity 413, and described fixedly connected 411 is provided with fixed orifice 412.Described fore-set 42 and described spring 43 all are arranged in the described cavity 413, and an end of described spring 43 is pressed on the madial wall of described cavity 413, and the other end withstands on the block face 421 of described fore-set 42, thereby guarantee the stretching motion of described fore-set 42.
Fit and principle of work:
Have the knob mounting hole on the described as shown in Figure 8 control panel 6, two decks 63 that the periphery of this mounting hole is provided with three joint pins 61 being complementary with described pilot hole 37, is complementary with described contiguous block 34.Described locating convex block 62 protrudes and is arranged on the peripheral madial wall of this mounting hole.
As shown in Figure 7, the present invention is mounted on the control panel 6, other control knob 8 also is installed on the described control panel 6, in the described lampshade unit 3 flap hand 7 is installed, the principle of work of described flap hand 7, but REFERENCE TO RELATED people applies for that on November 4th, 2009 application number is the Chinese invention patent of " 200910110481.0 ".
As Fig. 8, Fig. 9, shown in Figure 10, installation step is as follows:
1, earlier described fore-set unit 4 is mounted in the described gear mark 11.Concrete installation steps are: A, elder generation are mounted to described fore-set seat 41 in the described gear mark 11, are stuck in the surface of described fore-set seat 41 up to described screens 18.B, the self tapping screw is passed described fixed orifice 412, be engaged in then in the described double-screw bolt 19.C, described knob body 1 is contained on the described control panel 6, have only described bulge loop 14 and gear mark 11 to be exposed this moment, and for operation and indication, and two described locating convex blocks 62 are in respectively in the two described stopper slots 12.D, pack in the described cavity 413 described spring 43 and described fore-set 42 successively.
2, packed in described lampshade unit 3 in the described knob body 1, up to described buckle 13 described lampshade unit 3 is withheld, described buckle 13 is that the upper surface, the described contiguous block 34 that are buckled in described flange portion 35 are stuck in the two described decks 63, described joint pin 61 interts in described pilot hole 37, described fore-set 42 is pressed on the described fluted disc 38; At last, described lampshade unit 3 is fixed, and is integral with described control panel 6.
3, other mechanism such as described flap hand 7 is installed, guarantees that described flap hand hole 32 is passed in the front portion of described flap hand 7, the two ends, rear portion are rotatably connected on the inwall of described Transparent lamp shade 31.
4, the pin in the described linkage unit 2 21 is inserted in the described mating groove 17, at this moment, described linkage unit 2 is fixed into one with described knob body 1.
5, described potentiometer 9 is socketed on the described coupling shaft 22.Described potentiometer 9 is to be fixedly connected on the pcb board 5.
During work, only with hand rotates described knob body 1, and at this moment, described linkage unit 2 also will rotate with described knob body 1, and the rotation of described coupling shaft 22 also just drives described potentiometer 9 and rotates together.In described knob body 1 rotating process, when the two side of described stopper slot 12 contacts with described locating convex block 62, because described locating convex block 62 is integrally formed on described control panel 6, so described knob body 1 can not rotate again.
When the present invention was applied on the electric kettle, its embodiment can be provided with reference to the embodiment that the present invention is arranged on the toaster.Different is: in the embodiment of electric kettle, described knob body 1 normally by the CONTROLLED POTENTIAL device, reaches the effect of control water temperature; What described flap hand 7 was controlled is a touch-switch, and this touch-switch is controlled the duty of heater element by the control control circuit.The mechanical type control mode of this flap hand can keep the mode of operation of original traditional mechanical steam switch electric kettle.The control principle of described mechanical steam switch, but application reference day be: May 27, application number were in 2002: 02227908.3 Chinese utility model patent.
The present invention can be widely used in rotary switch control structure field.