CN204045500U - Mechanical type rotating digital display electronic timer - Google Patents

Abstract

The utility model disclose a kind of simple to operate, cost is low, just can be set the mechanical type rotating digital display electronic timer of multiple using function and running time by rotating.It comprises the LED light that setting shows using function on circuit boards, show the dibit charactron of using function running time, confirm using function and the microswitch of running time and the rotary coding switch with elastic touch switching mechanism, this elastic touch switching mechanism comprises two switches, it can by the initial position set, two switches that are counterclockwise or that generate when turning clockwise disconnect simultaneously at knob, single closed, simultaneously two kinds of time sequence status signals that are closed and single disconnection be sent to control circuit and by this control circuit by the operating state fixation of this timer in the using function operating state corresponding with time sequence status.Its need knob, revolving the interior setting that can complete several using function and corresponding running time of turning around, enormously simplify the operation sequence of household electrical appliance.

Description

Mechanical type rotating digital display electronic timer

Technical field

The utility model relates to a kind of timer, particularly a kind of electronic timer of mechanical type rotating numerical monitor.

Background technology

At present, in household electrical appliances market, whether timer used can have a key factor of outstanding feature as measurement household appliances self, it not only determines the appearance and modeling of household appliances control panel part, and determines the using function of household appliances.

For washing machine timer: the washing machine sold in the market, particularly double container washing and extracting machine adopt mechanical type rotating timer mostly, the setting of its timing leans on the angle of rotating machinery knob to decide.Clockwork spring rotates as machine power driven wheel close to the inner portion, the contact clutch of gear drive band moving contact, the energising of the executive component of control apparatus and power-off.The angle instruction that the timing of its setting can only rotate from knob judges this timing.Due to mechanical type rotating timers all in prior art, its internal structure can only have a kind of timing clutch order, so the existing double container washing and extracting machine of this structures shape can only have a kind of single washing or dehydration mode.

And in the market, the timer that single container washing and extracting machine are used, although have electronic program formula timer, but because circuit structure is complicated, power consumption is large, overall volume is comparatively large, make cost improve, in addition, on its guidance panel, button is many, trivial operations, too plenty for the eye to take it all in, the simple laundry activity belonging to common physical labor category originally, be converted into and need learn operation sequence just spendable loaded down with trivial details mental activity by heart.And current existing rotary electronic timer adopts mostly be rotary encoder as executive component, its complex structure, cost are high, and being usually used in has in the equipment of particular/special requirement.

Utility model content

The technical problems to be solved in the utility model be to provide a kind of simple to operate, cost is low, just can be set the mechanical type rotating digital display electronic timer of multiple using function and running time by rotating.

In order to solve the problems of the technologies described above, the technical solution adopted in the utility model is:

Mechanical type rotating digital display electronic timer of the present utility model, to comprise an end face be another end face uncovered is the shell in drum-shaped that central authorities have hole, bottom and the circuit board be fixed in containing single chip machine controlling circuit on shell inner bottom surface, the circumferencial direction that described circuit board is R along radius is evenly provided with several LED light showing each using function unlatching of this timer or close, the dibit charactron for showing described using function running time is provided with at the middle section of this circuit board, described using function and the microswitch of running time is confirmed being nearby provided with of described dibit charactron, also be provided with rotary coding switch on the board, rotary coding switch is provided with the elastic touch switching mechanism with the first switch and second switch be connected with circuit board, this elastic touch switching mechanism can the initial position that set by this timer of the knob on described rotary coding switch counterclockwise or the first switch generated when turning clockwise and second switch disconnect simultaneously, single closed, simultaneously two kinds of time sequence status signals that are closed and single disconnection be sent to described control circuit and by this control circuit by the operating state fixation of this timer in the using function operating state corresponding with described time sequence status.

Described circuit board is circular, described microswitch and single-chip microcomputer are placed in the top of described dibit charactron, are also provided with the pin bores of the base of rotary coding switch being fixed location fixing hole on the board, described first switch and second switch and the affixed blocked hole on circuit boards of button closed by the described microswitch of startup on the board.

Described rotary coding switch is made up of described base, rotating disk and described elastic touch switching mechanism, described base is provided with the disk of circular medium pore by center and is positioned at disk) rectangular disk of periphery is one-body molded, the periphery of described medium pore and the neighboring of base are provided with the inward flange and outward flange that upwards extend, are provided with the reference column in the described location fixing hole that can insert and be located on circuit board in the bottom of base; Described rotating disk, for being arranged at annular fluted disc between inward flange and outward flange, the neighboring of this annular fluted disc is evenly provided with several knuckle-tooth, and the inward flange of rotating disk is the hollow shaft type cylinder upwards extended, this cylinder is provided with can with the screens of described knob clamping; Described elastic touch switching mechanism is arranged in rectangular disk; Described button is placed in described medium pore, and its base is placed in the keys upwards of described microswitch, between this button top cover and charactron, be also provided with back-moving spring.

Described elastic touch switching mechanism is made up of the touch switch that two groups, left and right structure equidirectional is contrary, often organizes touch switch and is made up of electrode slice, trunnion, conductive arm and torsionspring; Described electrode slice is the left pole piece be set up in parallel, middle pole piece and right pole piece, it is close to described outward flange and arranges, its lower end is connected with control circuit by circuit board, forms the first described switch, form described second switch between right pole piece and middle pole piece between left pole piece and middle pole piece; The vertical described rectangle card of described trunnion is fixed in the side in this rectangular disk, one end of described conductive arm is connected to conduct electricity on described trunnion and with described left pole piece or right pole piece and is connected, its other end is columniform free end, and described torsionspring to be enclosed within described trunnion between the outward flange in rectangular disk portion and corresponding conductive arm; Free end on two groups of conductive arms is oppositely arranged and under the elastic reaction of corresponding torsionspring, is placed in the teeth groove on described rotating disk between adjacent two teeth when described initial position altogether; When the knuckle-tooth front on described rotating disk presses the free end on described conductive arm, this free end and described middle pole piece touch and connect the first switch or second switch; When described knuckle-tooth front presses the free end on two conductive arms simultaneously, the free end of two conductive arms simultaneously with described in pole piece touch and connect the first switch and second switch.

Described knob is hollow shaft type sleeve, and this sleeve outward flange is evenly distributed with protruding anti-skidding striped, and within it edge is provided with and this knob can be installed on location notch on disc tumbler cylinder and Elastic buckle, and knob and rotating disk can synchronous axial system in the same way.

Described LED light is eight.

Button has been provided with the pressure button cover of decoration function, this pressure button cover and button made by transparent plastic material, the shape of pressure button cover and button top cover is in circular arc numeral method digit optical can amplified.

Described LED light is also provided with the snoot that the refraction of the scattered light of point-source of light can be become directional light injection.

Described control circuit is made up of single-chip microcomputer, LED display circuit, charactron circuit and ghyristor circuit, and described rotary coding switch is connected between " P2.3 " pin of single-chip microcomputer and " P2.4 " pin.

Described control circuit is made up of single-chip microcomputer, LED display circuit, charactron circuit and ghyristor circuit, and the left pole piece of described rotary coding switch is connected with " P2.3 " pin of single-chip microcomputer, and its right pole piece is connected with " P2.4 " pin, and middle pole piece is connected to the ground.

The utility model is for the rotary digital of appliance design shows, based on monolithic processor controlled electronic timer, for the control of household electrical appliance executive component.Owing to have employed the rotary coding switch with elastic touch switching mechanism, both the feature that mechanical type rotating timer operation is simply easy to use had been remained, have again the feature of the flexible and changeable random setting of electronic program timer, being different from existing rotation digital display electronic timer can only the timing function of single setting.Particularly be used on washing machine, not only can setting arbitrarily timing with rotating the mode of knob but also all using function (as using function such as washing, dehydration, water inlet and the drainings) mode all by rotating knob realizes, namely only needing by operating a timer knob and just can complete the setting of several using function and corresponding running time in a swing circle.Enormously simplify the operation sequence of household electrical appliance, all-ages.The utility model, by simple setting, or can increase and makes adaptive change with the upgrading of household appliances using function.

The utility model compact conformation, small and exquisite durable, integrate multiple operating function, its cost is low, easy to use.

Accompanying drawing explanation

Fig. 1 is appearance schematic diagram of the present utility model.

Fig. 2 is the vertical view of Fig. 1.

Fig. 3 be in Fig. 1 A-A to cutaway view.

Fig. 4 is the utility model circuit board schematic diagram.

Fig. 5 is Fig. 4 left view.

Fig. 6 is rotary coding switch schematic diagram of the present utility model.

Fig. 7 is Fig. 6 vertical view.

Fig. 8 is Fig. 7 left view.

Fig. 9 is button vertical view of the present utility model.

Figure 10 be in Fig. 9 B-B to cutaway view.

Figure 11 is pressure button cover vertical view of the present utility model.

Figure 12 is Figure 11 left view.

Figure 13 is microswitch schematic diagram of the present utility model.

Figure 14 is one of spotlight schematic diagram of the present utility model.

Figure 15 is spotlight schematic diagram two of the present utility model.

Figure 16 is spotlight schematic diagram three of the present utility model.

Figure 17 is the vertical view of rotary coding switch of the present utility model when being placed in initial position.

Figure 18 is the schematic diagram that the rotary coding switch in Figure 17 rotates counterclockwise when closing to the first switch.

Figure 19 is the schematic diagram that the rotary coding switch in Figure 17 is clockwise to when second switch closes.

Figure 20 is the schematic diagram that the rotary coding switch in Figure 17 turns to when first and second switch all closes.

Figure 21 is C1 portion enlarged diagram in Figure 17.

Figure 22 is D1 portion enlarged diagram in Figure 18.

Figure 23 is E1 portion enlarged diagram in Figure 19.

Figure 24 is F2 portion enlarged diagram in Figure 20.

Figure 25 is circuit theory diagrams of the present utility model.

Reference numeral is as follows:

Circuit board 1, single-chip microcomputer 11, LED light 12, dibit charactron 13, microswitch 14, connector socket 15, location fixing hole 16, pin bores 17, blocked hole 18, rotary coding switch 2, base 21, disk 211, rectangular disk 212, inward flange 213, outward flange 214, medium pore 22, rotating disk 23, knuckle-tooth 231, teeth groove 232, screens 233, cylinder 234, reference column 24, elastic touch switching mechanism 3, trunnion 31, conductive arm 32, free end 33, torsionspring 34, left pole piece 35, middle pole piece 36, right pole piece 37, initial position 38, knob 4, sleeve 41, Elastic buckle 42, location notch 43, anti-skidding striped 44, button 5, back-moving spring 51, snap close 52, pressure button cover 6, diffuser 7, shell 8, bottom 9.

Embodiment

Mechanical type rotating digital display electronic timer of the present utility model be mainly used in laundry facilities is used for setting various function of washing clothes (such as: washing, dehydration, dry, water filling or draining etc., hereinafter referred to as using function) and corresponding function running time and for needing the home appliance setting multiple different operational mode and select control different running times.

As shown in Figure 1, 2, 3, its be by circuit board 1, with single-chip microcomputer 11 control circuit, be arranged on this circuit board 1 shows using function gear and opens or close LED light 12 (the utility model is eight LED light 12 preferably), for showing the dibit charactron 13 of using function running time, rotary coding switch 2, be arranged at setting using function on rotary coding switch 2 or the knob of running time 4, the button 5 starting using function work and shell 8 are formed.

Feature of the present utility model is on rotary coding switch 2, be provided with the elastic touch switching mechanism 3 with the first switch and second switch be connected with circuit board 1, this elastic touch switching mechanism 3 can the initial position 38 (namely this timer arranges the resting position at front place at every turn) that set by this timer of the knob 4 on described rotary coding switch 2 counterclockwise or the first switch generated when turning clockwise and second switch disconnect simultaneously, single closed, simultaneously two kinds of time sequence status signals that are closed and single disconnection be sent to described control circuit and by this control circuit by the operating state fixation of this timer in the using function operating state corresponding with described time sequence status.That is to say, signal authentication data storehouse is built-in with in advance in the single-chip microcomputer 11 of control circuit, when described knob 4 is counterclockwise or when turning clockwise, the time sequencing of the switch first connected and later turn on-switch successively can input to single-chip microcomputer 11 as a kind of signal, single-chip microcomputer 11 is through comparing with the data of its built-in storage, judge to draw and now should be set in that using function, then by the operating state of this set timer at using function corresponding to described time sequencing.

As Fig. 4, shown in 5, described circuit board 1 is circular, described charactron 13 is dibit charactron 13, it is placed in the central authorities of this circuit board 1, be provided with microswitch 14 and single-chip microcomputer 11 above it, thereunder the company of being provided with is toward the connector socket 15 outside circuit board 1, the circumferencial direction that described LED light 12 is R along radius is evenly arranged, the value of R can be determined according to concrete instrument size, the utility model is preferably not less than 2cm, this circuit board 1 is also provided with the location fixing hole 16 be fixed on by the base 21 of rotary coding switch 2 on this circuit board 1, the blocked hole 18 of the first switch in the described elastic touch switching mechanism 3 on rotary coding switch 2 and the pin bores 17 of second switch and this timer button 5 affixed.

As shown in figure 25, described control circuit is made up of single-chip microcomputer 11, LED display circuit, charactron 13 circuit and ghyristor circuit, and described rotary coding switch 2 is connected between " P2.3 " pin of single-chip microcomputer 11 and " P2.4 " pin.The model of described single-chip microcomputer 11 is STC89C52RC, also can use other singlechip chip of the same type.

As shown in Fig. 6,7,8, described rotary coding switch 2 is critical pieces of man-machine interaction, and it is made up of base 21, rotating disk 23 and described elastic touch switching mechanism 3.

The disk 211 that described base 21 is provided with circular medium pore 22 by center is one-body molded with the rectangular disk 212 being positioned at disk 211 periphery, the periphery of medium pore 22 and the neighboring of base 21 are provided with the inward flange 213 and outward flange 214 that upwards extend, are provided with the reference column 24 in the described location fixing hole 16 that can insert and be located on circuit board 1 in the bottom of base 21; Described rotating disk 23 is for being arranged at the annular fluted disc between inward flange 213 and outward flange 214, the neighboring of this annular fluted disc is evenly provided with several knuckle-tooth 231, teeth groove 232 is formed between adjacent knuckle-tooth 231, the inward flange of rotating disk 23 is the hollow shaft type cylinder 234 upwards extended, this cylinder 234 is provided with can with the screens 233 of described knob 4 (as shown in Figure 11,12) clamping; Described elastic touch switching mechanism 3 is arranged in rectangular disk 212; Described button 5 is placed in described medium pore 22, and its base is placed in the keys upwards of described microswitch 14, between this button 5 top cover and charactron 13, be also provided with back-moving spring 51.

Described elastic touch switching mechanism 3 is made up of the touch switch that two groups, left and right structure equidirectional is contrary, often organizes touch switch and is made up of electrode slice, trunnion 31, conductive arm 32 and torsionspring 34; Electrode slice described in two groups of touch switchs is be close to left pole piece 35, middle pole piece 36 and the right pole piece 37 that described outward flange 214 is set up in parallel, left pole piece 35 is connected with " P2.4 " pin with " P2.3 " pin of single-chip microcomputer 11 by circuit board 1 respectively with right pole piece 37, and middle pole is connected to the ground end of circuit board 1.

Vertical described rectangular disk 212 face of described trunnion 31 is fixed in the side in this rectangular disk 212, one end of described conductive arm 32 is connected to conduct electricity on described trunnion 31 and with described left pole piece 35 or right pole piece 37 and is connected, its other end is columniform free end 33, described torsionspring 34 is enclosed within described trunnion 31, the two ends holding of this torsionspring 34 at the outward flange 214 of rectangular disk 212 with between corresponding conductive arm 32.

Free end 33 on two conductive arms 32 is cylindrical, is oppositely arranged therebetween and under the elastic reaction of corresponding torsionspring 34, is placed in the described teeth groove 232 on described rotating disk 23 when described initial position 38 altogether.The width of teeth groove 232 is preferably set to the diameter slightly larger than free end 33 cylinder on two conductive arms 32 by the utility model, and like this, the described time sequence status signal produced when rotating knob 4, lag time is short.Described knuckle-tooth 231 increment is round and smooth, when rotating knob 4, the face of cylinder of increment round and smooth on knuckle-tooth 231 and described free end 33 touches, light lubricious good hand touch when this structure not only can make knob 4 rotate, and, when discharging the turning moment to knob 4, free end 33 on described conductive arm 32 is under the elastic force effect of described torsionspring 34, rotating disk 23 can be forced very easily to return back to inactive state (when the free end 33 namely on two conductive arms 32 is placed in a teeth groove 232 altogether, being inactive state).

The first described switch is formed between left pole piece 35 and middle pole piece 36, described second switch is formed between right pole piece 37 and middle pole piece 36, when timer fixation is at described initial position, the first switch and second switch are all in off-state (as shown in Figure 17,21).At described rotating disk 23 counterclockwise or when rotating clockwise (namely rotating knob 4), knuckle-tooth 231 front on it press free end 33 on described conductive arm 32 can by this free end 33 with described in pole piece 36 touch, that is, left pole piece 35 can be communicated with middle pole piece 36 with middle pole piece 36 or right pole piece 37 by it, i.e. closed first switch or second switch (as shown in Figure 18,19,22,23); When the free end on two conductive arms 32 presses to when touching with middle pole piece 36 by described knuckle-tooth 231 front simultaneously, now, namely simultaneously by the first switch and second switch closed (as shown in Figure 21,24).

First switch of single-chip microcomputer 11 by identification rotary coding switch 2 and the front and back state (namely described time sequence status) of second switch on-off, determine that rotary coding switch 2 rotates clockwise or rotates counterclockwise, determine that this timer is current with this and should be arranged at which kind of using function state, and start by pressing the button the time that this using function work determined by microswitch.

The mode of single-chip microcomputer 11 identification signal is as follows:

1, a Signal analysis:

1) when being rotated counterclockwise knob 4, described rotating disk 23 is all in off-state (as Figure 17 by the first switch and second switch, shown in 21) described initial position (when the free end 33 namely on two conductive arms 32 is all placed in a teeth groove 232) start rotation, first to the first switch closes, second switch off-state is (as Figure 18, shown in 22), then to the first switch, the while of second switch, closure state is (as Figure 20, shown in 24), then go to the first switch to disconnect, second switch closure state is (as Figure 19, shown in 23), when the free end 33 finally gone on two conductive arms 32 is placed in adjacent next teeth groove 232 altogether, not only the first switch and second switch but also when being all in off-state (as Figure 17, shown in 21), single-chip microcomputer 11 judges to show that knob 4 has been rotated counterclockwise a Signal analysis.

2) in like manner, when turn clockwise knob 4 time, single-chip microcomputer 11 also judges the Signal analysis showing that knob 4 has turned clockwise.

2, multiple signal identification:

When after completing a Signal analysis, continue counterclockwise or the knob 4 that turns clockwise repeated the process of a multiple Signal analysis, single-chip microcomputer just judges draw counterclockwise or have rotated several Signal analysis along during pin, thus, single-chip microcomputer draws according to the differentiation data relevant to each using function be stored therein in advance, this timer should fixation in that using function state.When this timer fixation is under that using function, the LED light that corresponding using function is corresponding highlights.

Above-mentioned Signal analysis mode, greatly can improve a knob 4 in a swing circle, (namely revolve in turning around) quantity allowing the using function arranged.Namely single-chip microcomputer 11 just can determine a using function state after completing a Signal analysis, and constantly rotating knob 4 will constantly repeat a Signal analysis process, can obtain using function states many arbitrarily.

Further by increasing the quantity of described teeth groove 232 and reducing the size of free end 33 on conductive arm 32, a more Signal analysis process can also be increased, namely can increase more using function.

As shown in Fig. 9,10, described button 5 is coaxially placed in the medium pore 22 of rotary coding switch 2.The snap close 52 of its lower end through the blocked hole 18 described in four that are located on circuit board 1 by button 5 grafting on the circuit card 1, button 5 is only with the axis direction short distance displacement along medium pore 22, namely exert pressure lower to circuit board 1 direction displacement (now can open described microswitch 14), after release pressure described back-moving spring 51 effect under upspring.Pressure button cover 6 is buckled on button 5 as Decorative Cover, except decoration, all made by transparent plastic material because end face is arcwall face and button 5 and pressure button cover 6, so, can see that the display numeral of charactron 13 plays logarithmic code pipe 13 font face amplification simultaneously.

When button press 5, the base of button 5 props up microswitch 14 can by closed for microswitch 14 (as shown in Fig. 4,13).When release button 5, upspring under the effect of back-moving spring 51, because snap close 52 clamping makes button 5 not come off on the circuit card 1.

Described knob 4 is hollow shaft type sleeve 41, this sleeve 41 outward flange is evenly distributed with protruding anti-skidding striped 44, within it edge is provided with and this knob 4 can be installed on location notch 43 on the cylinder of described rotating disk 23 and Elastic buckle 42, and knob 4 and rotating disk 23 can synchronous axial system in the same way.When knob 4 is enclosed within described rotating disk 23, described location notch 43 and Elastic buckle 42 are connected in the screens 233 be located on rotating disk 23.

Shell 8 is for mounting circuit boards 1 (as shown in Figure 1,3) and fixed function indicating window, diffuser 7 (as shown in Figure 14,15,16).Shell 8 shape is drum-shaped, an one end face is uncovered (hereinafter referred to as bung), the central authorities of another end face (at the bottom of bucket) have circular hole, this shell 8 is downward with its bung, be buckled on described rotary coding switch 2, described knob 4, button 5 are all placed in outside shell through the circular hole at the bottom of described bucket, and described circuit board 1 is fixed on the inner face at the bottom of shell bucket in dibit charactron 13 mode outwardly on it.

Function indicating window is arranged at the bottom of shell bucket, and it is made by transparent material, and its color is made as required, is used as decoration.Diffuser 7 diffuses into the backlight of directional light as function indicating window for the point-like light that LED is sent, when function indicating window prints word or figure in corresponding plan position approach, corresponding LED light 12 lights the profile that can project word and figure clearly.

Bunghole part described on shell 8 is also provided with the bottom 9 preventing extraneous dust or moisture attack circuit board 1.

Feature of the present utility model utilizes knob 4 to rotate rotary coding switch 2, and the signal that single-chip microcomputer 11 sends according to rotary coding switch 2 differentiates direction of rotation, and then determine current using function and timing, concrete operations are as follows:

1) first choice for use function

A described Signal analysis or multiple signal identification is completed by rotating (clockwise or counterclockwise) knob 4, the using function applied is wanted in setting, single-chip microcomputer 11 is connected according to the time sequence status that knob 4 rotates and is lighted the LED light 12 of corresponding using function, now, press the button 5 to be confirmed, can by this timer fixation in operating state corresponding to this using function; Afterwards, release knob 4, under the effect of described torsionspring 34, namely knob 4 is back to described inactive state.

2) timing that fixed using function is corresponding is selected again

Rotate knob 4 again, charactron 13 highlights, and increases progressively, be rotated counterclockwise as the time successively decreases if regulation clockwise turns to the time, then according to the direction that knob 4 rotates, single-chip microcomputer 11 determines that charactron 13 displaying time increases or reduces.Namely the operating time under the using function set is determined by secondary rotating knob 4.Charactron 13 show value is to the maximum " 99 ", and minimum is " 0 ", and its numerical value directly can see the numeral of display by transparent knob 4.

Further, can also according to pressing the button the time length of 5 and pressing the conversion that number of times carries out the display of charactron 13 timing and LED light 12 Fumction display.Under being transformed into LED light 12 Fumction display state, rotate the LED light 12 that knob 4 is arranged in knob 4 periphery, can be shifted one by one according to the direction of rotation of knob 4 and light (order lighted can be carried out according to designing program in advance).Each LED light 12 represents a kind ofly is determining the operating state under using function, and LED light 12 lights, and represents corresponding using function and is activated.Be arranged in LED light 12 quantity of knob 4 periphery, can according to design using function number determine.

In order to indicate the using function of setting accurately, on function indicating window, each LED light 12 position corresponding, indicates the mark of corresponding using function with word or icon.

In sum, each using function can set arbitrary timing time span between numerical value 0-99, reaches the timing setting of difference in functionality different time.

Claims (10)

1. a mechanical type rotating digital display electronic timer, to comprise an end face be another end face uncovered is the shell (8) in drum-shaped that central authorities have hole, bottom (9) and the circuit board (1) be fixed in containing single-chip microcomputer (11) control circuit on shell (8) inner bottom surface, it is characterized in that: the circumferencial direction being R along radius on described circuit board (1) is evenly provided with several LED light (12) showing each using function unlatching of this timer or close, the dibit charactron (13) for showing described using function running time is provided with at the middle section of this circuit board (1), described using function and the microswitch of running time (14) is confirmed being nearby provided with of described dibit charactron (13), this circuit board (1) is also provided with rotary coding switch (2), rotary coding switch (2) is provided with the elastic touch switching mechanism (3) with the first switch and second switch be connected with circuit board (1), this elastic touch switching mechanism (3) can the initial position (38) that set by this timer of the knob (4) on described rotary coding switch (2) counterclockwise or the first switch generated when turning clockwise and second switch disconnect simultaneously, single closed, simultaneously two kinds of time sequence status signals that are closed and single disconnection be sent to described control circuit and by this control circuit by the operating state fixation of this timer in the using function operating state corresponding with described time sequence status.

2. mechanical type rotating digital display electronic timer according to claim 1, it is characterized in that: described circuit board (1) is for circular, described microswitch (14) and single-chip microcomputer (11) are placed in the top of described dibit charactron (13), this circuit board (1) is also provided with the location fixing hole (16) be fixed on by the base of rotary coding switch (2) (21) on this circuit board (1), the pin bores (17) of described first switch and second switch and be fixed in blocked hole (18) on circuit board (1) by starting the closed button (5) of described microswitch (14).

3. mechanical type rotating digital display electronic timer according to claim 2, it is characterized in that: described rotary coding switch (2) is by described base (21), rotating disk (23) and described elastic touch switching mechanism (3) composition, described base (21) is provided with the disk (211) of circular medium pore (22) by center and to be positioned at a rectangular disk (212) of disk (211) periphery one-body molded, the periphery of described medium pore (22) and the neighboring of base (21) are provided with the inward flange (213) and outward flange (214) that upwards extend, the reference column (24) in described location fixing hole (16) can inserted and be located on circuit board (1) is provided with in the bottom of base (21), described rotating disk (23) is for being arranged at annular fluted disc between inward flange (213) and outward flange (214), the neighboring of this annular fluted disc is evenly provided with several knuckle-tooth (231), the inward flange of rotating disk (23) is the hollow shaft type cylinder (234) upwards extended, this cylinder (234) is provided with can with the screens (233) of described knob (4) clamping, described elastic touch switching mechanism (3) is arranged in rectangular disk (212), described button (5) is placed in described medium pore (22), its base is placed in the keys upwards of described microswitch (14), is also provided with back-moving spring (51) between this button (5) top cover and charactron (13).

4. mechanical type rotating digital display electronic timer according to claim 3, it is characterized in that: described elastic touch switching mechanism (3) is made up of the touch switch that two groups, left and right structure equidirectional is contrary, often organize touch switch and be made up of electrode slice, trunnion (31), conductive arm (32) and torsionspring (34); Described electrode slice is the left pole piece (35) be set up in parallel, middle pole piece (36) and right pole piece (37), it is close to described outward flange (214) and arranges, its lower end is connected with control circuit by circuit board (1), form the first described switch between left pole piece (35) and middle pole piece (36), between right pole piece (37) and middle pole piece (36), form described second switch; Described trunnion (31) vertical described rectangular disk (212) face is fixed in the side in this rectangular disk (212), it is upper and conduct electricity with described left pole piece (35) or right pole piece (37) and be connected that one end of described conductive arm (32) is connected to described trunnion (31), its other end is columniform free end (33), and described torsionspring (34) to be enclosed within described trunnion (31) between the outward flange (214) in rectangular disk (212) portion and corresponding conductive arm; Free end (33) on two groups of conductive arms (32) is oppositely arranged and under the elastic reaction of corresponding torsionspring (34), is placed in the teeth groove (232) between upper adjacent two teeth of described rotating disk (23) when described initial position (38) altogether; When pressing free end (33) on described conductive arm (32) when knuckle-tooth (231) front on described rotating disk (23), this free end (33) and described middle pole piece (36) touch and connect the first switch or second switch; When pressing free end (33) on two conductive arms (32) when described knuckle-tooth (231) front simultaneously, the free end (33) of two conductive arms (32) simultaneously with described in pole piece (36) touch and connect the first switch and second switch.

5. mechanical type rotating digital display electronic timer according to claim 3, it is characterized in that: described knob (4) is hollow shaft type sleeve (41), this sleeve (41) outward flange is evenly distributed with protruding anti-skidding striped (44), within it edge is provided with and this knob (4) can be installed on location notch (43) on rotating disk (23) cylinder (234) and Elastic buckle (42), and knob (4) and rotating disk (23) can synchronous axial system in the same way.

6. the mechanical type rotating digital display electronic timer according to any one of claim 2-5, is characterized in that: described LED light (12) is eight.

7. the mechanical type rotating digital display electronic timer according to any one of claim 3-5, it is characterized in that: the pressure button cover (6) being provided with decoration function on button (5), this pressure button cover (6) is made by transparent plastic material with button (5), and pressure button cover (6) is the circular arc that charactron (13) can be shown digital optical amplifier with the shape of button (5) top cover.

8. mechanical type rotating digital display electronic timer according to claim 6, is characterized in that: in described LED light (12), be also provided with the snoot that the refraction of the scattered light of point-source of light can be become directional light injection.

9. mechanical type rotating digital display electronic timer according to claim 2, it is characterized in that: described control circuit is made up of single-chip microcomputer (11), LED display circuit, charactron circuit and ghyristor circuit, described rotary coding switch (2) is connected between " P2.3 " pin of single-chip microcomputer (11) and " P2.4 " pin.

10. mechanical type rotating digital display electronic timer according to claim 4, it is characterized in that: described control circuit is made up of single-chip microcomputer (11), LED display circuit, charactron circuit and ghyristor circuit, the left pole piece (35) of described rotary coding switch (2) is connected with " P2.3 " pin of single-chip microcomputer (11), its right pole piece (37) is connected with " P2.4 " pin, and middle pole piece (36) is connected to the ground.