CN2329028Y - Time clock - Google Patents

Abstract

The utility model relates to a timing big clock, which is composed of a gear-driven son clock and an optical control electronic circuit mother clock which is controlled by a quartz clock. A second hand of the quartz clock is used for covering a photoresistance to sending out the changed signal, and a motor drives a transmission device to make a minute hand and an hour hand rotate to display time. The upper side of a minute hand rotating shaft is provided with a plate sheet with holes, and the holes are touched to stop The utility model has the advantages of compact structure, small space of mechanism land occupation, long running time every minute in comparison with a traditional big clock, low cost, and energy saving, can be used for places of stations, airports, plazas, towns, etc., and can be used as a big timing display device.

Description

Time clock

The utility model relates to a kind of timer, particularly a kind of gear-driven large-scale timing clock by circuit control.

More common clock faces are referred to as " turret clock " directly through very big clock on large-scale railway station, airport or City Building.Turret clock makes secondary clock, is controlled by master clock.But because its letter disk is very big, the massive pointer of fast moving, can in mechanism, produce bigger bump, thereby reduced the serviceable life of mechanism, thereby large-scale secondary clock generally adopts " motor-type secondary clock mechanism ", the characteristics of this secondary clock mechanism are to drive hand motion with motor, thereby letter disk, pointer can be done very greatly.Master clock is realized by " punctual assembly " the control of secondary clock, promptly is between first order worm gear reducer and second level worm reducer, and " a punctual assembly " that connects double reduction gear is set, and it is sent by master clock, and " half point pulse " control.It makes between the double reduction gear unrelated when not having the input of " half point pulse " signal, and motor only is being with the idle running of first order speed reduction unit; And in the arrival of " half point pulse " signal, it but makes double reduction gear couple together, so pointer is with.In sum, now there is mechanism in the grandfather clock that generally uses big mechanism occupies than large space and complicated, and energy consumption is big, and shortcoming such as the pointer pointing accuracy is lower.

The purpose of this utility model provides a kind of Time clock, the secondary clock pointer adopts frivolous sheet material to make, and driving mechanism is small light also, uses crystal clock and light-controlled electronic circuit as master clock, just can realize mechanism's miniaturization of large-scale secondary clock, and instruction time more accurately.

The purpose of this utility model is achieved in that great bell also is made up of secondary clock and master clock, and master clock is a crystal clock that precision is higher, whenever turns around and covers photoresistance Q when the second of crystal clock ₁Hide, at this moment relay J ₄J is passed through in work ₄The contacting power supply, driving motor D is rotated, now hour hands and the minute hand with great bell is converted into thin plate, the bump that has produced to gear mechanism with regard to having alleviated moving hand greatly like this, therefore remove gear is made with No. 45 steel, all the other gears are all made with 1010 polyesters, simultaneously will be according to the number of the big or small cloth centrally-mounted driving of clock face diameter, drive motor all adopts 5 rev/mins directed permagnetic synchronous motor to come drive shaft to rotate, other mate gears rotations drive big finger rotation thereby main shaft rotates drive, in the rotating shaft of great bell minute, the plate dish that a circumference evenly is drilled with 60 apertures is housed, plate dish and great bell minute hand rotate synchronously, are provided with photoresistance Q in a certain position of the foraminate garden of plate dish on week ₂, light makes photoresistance Q by aperture ₂Resistance reduces, the D relay J ₅Work, J ₅Become normally closedly by often opening, make J ₁Work, powered-down, each relay quits work, the motor stall.After covering light signal second and come etc. next crystal clock, the great bell secondary clock is reworked once again.

Compared with the prior art, the utility model can comparatively accurately be finished the time showing of secondary clock owing to adopt crystal clock and the light-controlled electronic circuit is controlled the rotation of driving motor as master clock.Simultaneously, the utility model compact conformation, it is little, easy to maintenance, with low cost, energy-conservation that the space is taken up an area of in internal department, and the grandfather clock that can be widely used in ground such as station, airport, cities and towns shows.

Fig. 1 is the transmission synoptic diagram of the utility model Time clock.

Fig. 2 is the circuit diagram of the utility model Time clock.

Fig. 3 is the utility model Time clock drive motor gear and the synoptic diagram that cooperates of mainshaft gear.

Fig. 4 is the outside drawing of the utility model Time clock.

Below in conjunction with the drawings and specific embodiments the utility model is described in further detail.

As shown in the figure, Time clock is by clock face, four drive motor 1, coupling wheel 2 and gear 3, gear 4 and gear 5, gear 6 and gear 8, stop tooth relay 9 and gear 7, gear 10 and gear 16, gear 17 and gear 18, gear 20 and gear 21, and the plate dish 13 that has aperture 14, hour hands rotating shaft 15, minute hand rotating shaft 19 and hour hands 12, minute hand 11 grades are formed great bell rotating mechanism and time indication mechanism jointly.Light-controlled electronic circuit of the present utility model is to form like this, and it comprises the AC power of a 220V, and AC power is through transformation and diode D ₆Rectification, bulb W ₁With resistance R ₁Series connection and bulb W ₂With resistance R ₂Series connection is attempted by both ends of power, double-contact relay J then ₄With diode D ₁Back in parallel and one-way SCR V ₁Series connection is at the power positive cathode two ends, and it has contact switch four the 220V alternating current generators of control and the switch of tooth relay J of stopping, at photoresistance Q ₁With bulb W ₁Between the second hand of the crystal clock of a rotation is set, at photoresistance Q ₂With bulb W ₂Between be provided with that circumference evenly is drilled with 60 apertures the plate dish that rotates synchronously with the great bell minute hand, relay J ₁With diode D ₂Back in parallel and one-way SCR V ₂And relay J ₅The switch contact series connection at both ends of power; Relay J ₂With diode D ₃Meet triode V after the parallel connection ₄Collector, and by triode V ₄The emitter series connection at both ends of power, photoresistance Q ₁With variable resistor R ₅Series connection is at both ends of power, relay J ₃With diode D ₄Back in parallel and triode V ₆Collector connects, and by triode V ₆The emitter series connection at both ends of power, photoresistance Q ₂With variable resistor R ₆Series connection is at power supply photoresistance Q ₂With variable resistor R ₆Series connection is at both ends of power, relay J ₅With diode D ₅Parallel connection then with triode V ₈Collector connects, and by triode V ₈Emitter be serially connected in both ends of power, relay is along J ₃Normally closed contact and resistance R ₇, R ₈Series connection is at both ends of power, resistance R ₇With resistance R ₈Contact and one-way SCR V ₁Trigger electrode link to each other relay J ₂Switch contact and resistance R ₉Series connection back and one-way SCR V ₂Trigger electrode link to each other.

Principle of work of the present utility model is as follows: as bulb W ₁Illumination photoresistance Q ₁The time, resistance reduces, and makes relay J ₃Work, J ₃Normally closed change is often opened, controllable silicon V ₁Triggerless, when 1 minute suitable circling of crystal clock second hand, pointer is with photoresistance Q ₁Hide once, at this moment relay J ₃Quit work, power supply signal is through relay J ₃Contact and resistance R ₇Give controllable silicon V ₁Trigger pip, at this moment relay J ₄Relay J is passed through in work at once ₄The switch contact closure, 4 drive motor D work, simultaneously, gear 7 is left in tooth relay 9 adhesives of stopping, because drive motor adopts 5 rev/mins of directed permagnetic synchronous motors, motor transmission shaft rotates other mate gear 4, gear 5 by 4 gears 2 and mainshaft gear 3 couplings, gear 6, gear 7, gear 8, gear 10, gear 16, gear 17, gear 18, gear 20, gear 21.Drive great bell minute rotating shaft 19 at last, clock rotating shaft 12 is rotated, by minutes 11 and hour hands come the demonstration time.According to the gear coupling, when axle 22 changes 4 circles at that time (about 48 seconds), axle 23 changes 1 circle, and axle 24 changes 1/4 circle, and axle 25 changes 1/8 circle, and 1/16 circle is changeed in minute hand rotating shaft 19, makes hour hands rotating shaft 15 phase inversions answer angle through axle 26 then.In minute hand rotating shaft 19 plate dish 13 is housed, plate dish 13 upper edge circumference are evenly distributed with 60 apertures 14, are provided with photoresistance Q in a certain aperture position ₂With bulb W ₂, plate dish 13 rotates synchronously with minute hand rotating shaft 19, when plate dish 13 changes 1/60 circle, and bulb W ₂Light shine photoresistance Q by aperture 14 ₂On, photoresistance Q ₂Resistance reduces, relay J ₅Work, the closing of contact of relay makes relay J ₁Work, powered-down, each relay quits work, the motor stall, the tooth relay 9 of stopping is checked gear 7 under spring action, make pointer can not refer in the per minute that at this moment the working time of clock is 48 seconds because of inertia does not move, improve pointing accuracy greatly, approximately after about 12 seconds, photoresistance Q ₁Be subjected to crystal clock second hand one lid light signal again, great bell repeats work once.

Pointer of the present utility model adopts flat cold-rolled sheet to make, and the drive motor number can be according to the size increase and decrease of clock face diameter.

In the utility model typical embodiments, resistance R ₁, R ₂, R ₃, R ₄, R ₅, R ₆, R ₇, R ₈, R ₉Be respectively 22 Ω, 22 Ω, 9.6K Ω, 4.7K Ω, 47K Ω, 47K Ω, 13K Ω, 1.5K Ω, 3K Ω, diode is 2CK19, and triode 3DK4, bulb are 10W, the equal 3CT of controllable silicon, relay 6V-9V.

In the utility model typical embodiments, transmission gear 2,3,4,5,6,7,8,10,16,17,18,20,21, the number of teeth are respectively: 32,128,32,128,64,100,128,32,240,32,128,40,120, all the modulus of gear is m=1, thick 12mm, drive motor are 5 rev/mins of directed permagnetic synchronous motors.This great bell turns round in practicality, and it is back with 12 volts of direct-flow inverter work to have a power failure.

Claims (3)

1, a kind of Time clock, it includes clock face, drive motor (1), coupling wheel (2) and gear (3), gear (4) and gear (5), gear (6) and gear (8), stop tooth relay (9) and gear (7), gear (10) and gear (16), gear (17) and gear (18), gear (20) and gear (21), minute hand (11), hour hands (12) is characterized in that:

A, it comprises a master clock of being made up of crystal clock and light-controlled electronic circuit, and circuit part comprises the AC power of a 220V, and AC power is through transformation and diode (D ₆) rectification, bulb (W ₁) and resistance (R ₁) series connection, bulb (W ₂) and resistance (R ₂) be connected on both ends of power, double-contact relay (J after the series connection ₄) and diode (D ₁) back in parallel and one-way SCR V ₁Series connection is at both ends of power, and it has contact switch four the 220V AC driven motor of control and the switch of tooth relay J of stopping, at photoresistance (Q ₁) and bulb (W ₁) between second of the crystal clock of a rotation is set, at photoresistance (Q ₂) and bulb (W ₂) between be provided with and plate dish (13) that the great bell minute hand rotates synchronously relay (J ₁) and diode (D ₂) parallel connection, then with one-way SCR (V ₂) and relay (J ₅) the switch contact series connection at both ends of power, relay (J ₂) and diode (D ₃) parallel connection then with triode (V ₄) the collector connection, and by triode (V ₄) the emitter series connection at both ends of power, photoresistance (Q ₁) and variable resistor (R ₅) series connection is at both ends of power, relay (J ₃) and utmost point diode (D ₄) parallel connection then with triode (V ₆) the collector connection, and by triode (V ₆) emitter be connected on both ends of power, photoresistance (Q ₂) and variable resistor (R ₆) series connection is at both ends of power, relay (J ₅) and diode (D ₅) parallel connection then with triode (V ₆) the collector connection, and by triode (V ₆) the emitter series connection at both ends of power, relay (J ₃) normally closed contact and resistance (R ₇), (R ₈) series connection is at both ends of power, resistance (R ₇) and resistance (R ₈) contact and one-way SCR (V ₁) trigger electrode link to each other relay (J ₂) switch contact and resistance (R ₉) series connection then with one-way SCR (V ₂) trigger electrode link to each other.

B, be connected on the plate dish (13) that rotates synchronously with minute hand in minute hand (11) rotating shaft (19) go up garden week the position be evenly distributed with 60 apertures (14).

2, Time clock according to claim 1 is characterized in that being distributed with 4 drive motor and drives secondary clock by 4 gears (2) and gear (3) coupling, and can be according to the number of clock face diameter increase and decrease drive motor and gear (2).

3, great bell according to claim 1 and 2 is characterized in that big finger made by cold rolling thin material.

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