CN2201834Y

CN2201834Y - Speed-adjustable self-rotating electric dining table

Info

Publication number: CN2201834Y
Application number: CN 94226057
Authority: CN
Inventors: 卞克
Original assignee: Individual
Current assignee: Individual
Priority date: 1994-01-15
Filing date: 1994-01-15
Publication date: 1995-06-28
Anticipated expiration: 2004-01-15

Abstract

The utility model relates to a speed-adjustable self-rotating electric dining table adaptable for eating and drinking in the dining room. The dining table is that a set of electric drive device and speed reducing gear is added between the rotating table top and the fixed table frame of the common rotating dining table. The rotating table top is integrated with the plastic gear ring, the plastic gear is fixed to the shaft of the stepping motor, which is fixed to the fixed table frame, and the gear is engaged with the gear ring. When the stepping motor rotates after obtaining electricity, the gear on the shaft of the stepping motor drives the gear ring integrated with the rotating table top to rotate so as to electrically rotate the rotating table top. By means of changing and controlling the pulse signal of the stepping motor, the speed of the rotating table top can be changed and the rotating table top can be intermittently rotated.

Description

Speed-adjustable self-rotating electric dining table

Technical field under the utility model

The utility model relates to the dining facilities of a kind of Chinese's of convenience eating habit and requirement, the motor-driven dining table that especially has adjustable speed and rotate automatically.

Prior art

At present, the lazy Susan that various dining rooms provide known to everybody is by the table dormant frame, desktop and rotating table top and constitute, and rotating table top does not have drive unit.When having dinner, putting various dish on the rotating table top, client selects dish, must make it rotation and select dish by staff applied thrust rotating table top.Cause some clients so out of politeness, lazy Susan on one's own initiative not oneself like the dish eaten and can't choose, and other clients is initiatively selected rotary dining table, but seem and owe elegant under some formal occasions.

The order of utility model

The purpose of this utility model provides a kind of motor-driven dining table, is used as power with Vidacare corp, replaces the rotation of human hand-drive tabletop, and it can not only make tabletop rotate automatically, and can regulate its rotary speed easily.

The content of utility model

The utility model purpose is achieved in that in common lazy Susan table dormant frame and table leg are made an integral body, and a metal axle sleeve is installed at the center of table dormant frame, and rotating table top has the carpenter to make.In the center of table dormant frame a metal shaft is installed, lazy Susan can be inserted in by axle on the sleeve block of table dormant frame rotates freely.

On the basis of the above, increase by a cover Vidacare corp, do once to slow down with stepper motor, secondary speed-reducing is made with gear graduation in lazy Susan and stepper motor connection place, to satisfy the low speed requirement of motor-driven dining table.

This covering device is to be added between table dormant frame and the lazy Susan.The plastic teeth wheel rim is attached to the lower curtate of lazy Susan, goes into an integral body.The two center is overlapped.Plastic gear is fixed on the rotating shaft of stepper motor, under assurance lazy Susan bottom gears circle and axle cog situation about meshing, stepper motor is fixed on driving stepper motor rotation like this on the table dormant frame, gear on it will promote the gear ring rotation, gear ring is to be attached to the below of rotating table top and to go into an integral body, therefore, the gear ring rotation just means the rotating table top rotation.

Because the rotating speed of stepper motor own is low, passes through the deceleration of gear 8:1 again, its desktop speed is just lower, satisfies the requirement of rotating table top low speed fully.

In conjunction with the accompanying drawings 2, the stepper motor drive principle underdraws.

According to the operation principle of stepper motor, stepping pulse signal of every input, stepper motor will rotate a fixing angle.

By CD4046 and its peripheral cell form voltage frequency converter, regulate W2, can change CD4046 the 9th pin input voltage, thereby the output signal frequency of the 4th pin is changed in certain scope, and this stepping pulse signal passes through by CD4019, MC14106, MC14516, MC14011 behind the pulsqe distributor that this five chip block of MC14070 and its peripheral cell are formed, has produced the control signal that is assigned to each phase winding of stepper motor by the selected excitation method of salary distribution successively.

Because the pulse signal power of pulse distribution output is very little, must be behind pulsqe distributor the access power amplifier, form four winding lists by Q1-Q10 etc.

Because the pulse signal power of pulse distribution output is very little, must be behind pulsqe distributor the access power amplifier, form four winding one pole drive circuits by Q1-Q10 etc., after amplifying, electric current removes control step motor winding again, make it by step-by-step impulse of every input, each phase winding of stepper motor is pressed the rotation energising of AD-AC-BC-BD, working the angular displacement of rotating is directly proportional with the umber of pulse of input, and synchronous with the input pulse signal in time, so the rotating speed of stepper motor is directly proportional with the input pulse frequency.This frequency conversion rate can be carried out stepless speed regulation.Chip 555 is formed timing circuit with peripheral cell, make bidirectional triode thyristor BCR conducting periodically and end, thereby the output signal of control CD4046 the 4th pin, desktop is intermittently rotated and stop, regulate W3, can change resting period that desktop rotates-stop K2 that closes a switch, the short circuit bidirectional triode thyristor, make CD4046 the 4th pin output signal lead directly to MC14106, rotating table top then rotates automatically by stepper motor speed.Regulate W2, can change the desktop rotary speed.

Five. the comparison of utility model and prior art

Adopt such scheme, with the stepper motor driving rotating table top that is used as power, replace human hand-drive desktop, thereby avoid client some awkward Jie's scenes when the choosing food, to occur, make client like a cork, freely select the dish of oneself liking separately, be suitable for luxurious hotel especially and the hotel holds gaudy, Chinese diet image is further got a new look.Simultaneously, owing to be on common lazy Susan, to increase drive unit, be convenient to transform ordinary table.

Embodiment

Below in conjunction with accompanying drawing and example the utility model is further specified

Accompanying drawing 1 structural representation of the present utility model

Accompanying drawing 2 step motor control and drive principle figure

Accompanying drawing 3 theory diagrams of the present utility model

In the accompanying drawing 1:

1. 6. 7. table dormant framves of rotating table top 2. plastic gear loop diameter 320MM/168 tooth 3. plastic gear diameter 38MM/19 teeth, 4. stepper motor 1.8 degree/steps 5. sleeve blocks, 8. table legs, 9. control cabinets

Common lazy Susan is to make an integral body by circular table dormant frame (7) and table leg (8) by the carpenter.The center of table dormant frame (7) is installed a metal shaft block set (5) rotating table top (1) and is made by the carpenter, a metal shaft (6) is installed in center at circle row rotating table top (1), axle (6) can be inserted on the sleeve block (5), and desktop can rotate freely.

On the basis of the above, install drive unit and gear reduction part additional.Plastic teeth wheel rim (2) is sticked on the lower curtate of rotating table top (1) with bonding agent, and the center that the center of plastic teeth wheel rim (2) must rotating table top (1) overlaps.Plastic gear (3) is fixed on the rotating shaft of stepper motor (4).Then with stepper motor (4) fixedly in rotating table top (1) and table dormant frame (7) space between the two, guarantee that plastic teeth wheel rim (2) becomes the strong attitude of engagement with plastic gear (3), will make the top of plastic gear (3) can not directly contact with the bottom of rotating table top (1) simultaneously.

Drive circuit, timing control circuit, power supply are all manufactured on a printed circuit board, and be encapsulated in the metal control box (9), a side of control box (9) is installed power supply, regularly, pause switch and indicator lamp and speed-regulating potentiometer are drawn electric power incoming line by opposite side, the step motor control line.Control box (9) is installed in the side-lower that operation-control switch is convenient in table dormant frame (7) bottom.Go up brill one hole at table dormant frame (7), the step motor control line that control box (9) is drawn passes this hole, is connected with stepper motor (4), and the electric power incoming line that control box (9) is drawn is connected with external 220V power supply, and whole device just installs.

During use, the control box power switch K1 that closes, the K3 that closes a switch again, rotating table top will rotate automatically with low speed, and governing speed knob W2 can change the rotary speed of rotating table top, the K2 that closes a switch, rotating table top will be to change-to stop-to change-stop the mode alternation.Regulate W3, can change the resting period.

Main element:

IC1 MC14106 IC2 MC14516

IC3 CD4019 IC4 MC14011

IC5 MC14070 IC6 CD4046

IC7 NE555 IC8 7812

R1、R2、R3、R4、R5、R6、R23、R25 10K

R8、R24 47／3W R18、R19、R20 1K

R7、R10、R11、R12、R13、R14、R15、R16、R17 47K

R22、R26、100K R21 470／10W

R30 200 R31 68 R32、R33 10／2W

R27、R28 1K

W1 1M W2 1M W3 10M

C1 10PF／35V C2 10PF／100V

C3、C5 100μF／100V C4 470nk／63V

C6、C7 1000μF／100V

BCR bidirectional triode thyristor 1A/50V

Q1、Q3、Q5、Q7 BC182

Q2、Q4、Q5、Q6 BD679

The D 1.8 degree/steps of four winding synchronous motors

F1 protective tube 10A

ZL1 rectifier bridge 5A/100V

ZL2 rectifier bridge 2A/50V

D1 IN4001 D11、D12 IN4004

D2、D3、D4、D％、D6、D7、D8、D9 IN4004

Claims

1, a kind of adjustable speed spinning motor-driven dining table, it is the round desktop that an adjustable speed is arranged on fixing dining table, it is characterized in that: between rotating table top and solid table frame, the transmission system of forming by a cover motor driver and stepper motor and a pair of change-speed gearing.

2, adjustable speed spinning motor-driven dining table according to claim 1 is characterized in that: variable gear system is that the ring tooth wheel rim hollow, that the outside is gear is formed by a plastic gear and an inboard.

3, adjustable speed spinning motor-driven dining table according to claim 1 is characterized in that: motor driver is by stepper motor, Drive and Control Circuit, timing circuit, power supply, constitutes an integral body on printed circuit board (PCB).