CN106308051A - Single-motor three-tube office table capable of rising and falling - Google Patents
Single-motor three-tube office table capable of rising and falling Download PDFInfo
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- CN106308051A CN106308051A CN201610848863.3A CN201610848863A CN106308051A CN 106308051 A CN106308051 A CN 106308051A CN 201610848863 A CN201610848863 A CN 201610848863A CN 106308051 A CN106308051 A CN 106308051A
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- resistance
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- electric capacity
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- A—HUMAN NECESSITIES
- A47—FURNITURE; DOMESTIC ARTICLES OR APPLIANCES; COFFEE MILLS; SPICE MILLS; SUCTION CLEANERS IN GENERAL
- A47B—TABLES; DESKS; OFFICE FURNITURE; CABINETS; DRAWERS; GENERAL DETAILS OF FURNITURE
- A47B17/00—Writing-tables
- A47B17/02—Writing-tables with vertically-adjustable parts
-
- A—HUMAN NECESSITIES
- A47—FURNITURE; DOMESTIC ARTICLES OR APPLIANCES; COFFEE MILLS; SPICE MILLS; SUCTION CLEANERS IN GENERAL
- A47B—TABLES; DESKS; OFFICE FURNITURE; CABINETS; DRAWERS; GENERAL DETAILS OF FURNITURE
- A47B9/00—Tables with tops of variable height
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- Motorcycle And Bicycle Frame (AREA)
Abstract
The invention provides a single-motor three-tube office table capable of rising and falling. The single-motor three-tube lifting office table comprises a bracket, a transmission mechanism, a single-motor control box, a lifting mechanism and two bottom plates; the transmission mechanism is installed on the bracket, and the output ends of the transmission mechanism are connected with gear boxes arranged on the left side and the right side of the transmission mechanism respectively; the single-motor control box is installed on the bracket and electrically connected with the transmission mechanism; the lifting mechanism is connected to the bracket through an installation plate; the two bottom plates are connected to the lifting mechanism separately. According to the single-motor three-tube office table capable of rising and falling, a transmission rod is driven by a single motor to rotate to drive gear sets arranged in the gear boxes arranged on the two sides to synchronously rotate, and then synchronous operation of screws on the two sides is achieved, so that lifting assemblies on the two sides of the office table synchronously rise and fall; in addition, each lifting assembly comprises three stand columns which are mutually nested and can achieve two-stage transmission, and therefore the lifting height of the office table can be more precisely and more reliably changed.
Description
Technical field
The invention belongs to field of mechanical technique, relate to a kind of desk, particularly a kind of single motor three-tube type liftable is done
Public table.
Background technology
Desk is the most common a kind of office equipment in office now, but most desk is fixing, it is impossible to
Regulation, it is impossible to adapt to working environment and the change of user of service's demand, makes clerical workforce easily produce in office process tired
Sense, and resource of handling official business can not get effectively utilizing.
In sum, for solving the deficiency on existing office desk structure, need design a kind of Height Adjustable, and lifting is flat
Steady single motor three-tube type liftable desk.
Summary of the invention
It is an object of the invention to there are the problems referred to above for existing technology, it is proposed that a kind of Height Adjustable, and lifting
The most single motor three-tube type liftable desk.
The purpose of the present invention can be realized by following technical proposal: a kind of single motor three-tube type liftable desk, bag
Include:
Bracket, is arranged side by side between first crossbeam, and two groups of first crossbeams by second cross beam removable including about two groups
Formula connects, and wherein, the side often organizing first crossbeam is each provided with a supporting plate and a gear-box；
Drive mechanism, is installed on one of which first crossbeam, and the outfan of drive mechanism respectively with the left and right sides
Gear-box is connected；
Single motor control box, two ends are respectively arranged on two second cross beams, and electrically connect with drive mechanism；
Elevating mechanism, including two lifting assemblies being symmetricly set in bracket both sides, and one end of two lifting assemblies is divided
It is not connected on the two groups of first crossbeams in left and right by two pieces of installing plates；Two base plates, are connected to the other end of lifting assembly；
Also including the single motor control box circuit for controlling elevating mechanism, described single motor control box circuit includes micro-place
Reason device, circuit for alarming, power supply stabilization circuit, and perform circuit and motor-drive circuit, wherein, described microprocessor sends letter
Number give motor-drive circuit, described motor-drive circuit accept signal adjust motor duty, described motor-drive circuit
Duty according to motor generates feedback signal and is sent to microprocessor, and described microprocessor controls to perform according to feedback signal
The switch of circuit and the switch of control circuit for alarming, described microprocessor comprises the first chip IC 1, described first chip IC 1
Model be 15w404as, described power supply stabilization circuit comprises the second chip IC 2, and the model of described second chip IC 2 is
34063。
In above-mentioned a kind of single motor three-tube type liftable desk, lifting assembly includes: three the most mutually nested
The first column, the second column and the 3rd column；Screw rod, is nested in the 3rd column, and one end of screw rod and gear train phase
Even；Fixed cover, is located on screw rod, and is fixed by axle sleeve.
In above-mentioned a kind of single motor three-tube type liftable desk, described drive mechanism includes: motor, is installed on peace
On dress plate；Drive link, two ends are connected with the gear train in gear-box respectively, and wherein, the outbound course of motor turns with drive link
Dynamic direction is vertical, and parallels with the moving direction of lifting assembly.
In above-mentioned a kind of single motor three-tube type liftable desk, the second column includes: the second fall way；First card
Part, is nested in one end of the second fall way, and is positioned at the outside of the second fall way；Positioning sleeve, is nested in the another of the second fall way
One end, and being positioned at inside the second fall way, and offer, along the thickness direction of positioning sleeve, the through hole matched with fixed cover；Some
Individual a connecting piece, the outside circular array along the second fall way being nested with positioning sleeve one end is arranged；3rd column includes:
3rd fall way；Second fastener, is nested in one end of the 3rd fall way；Several the second connection sheets, circular array is arranged at
The other end of the 3rd fall way, wherein, it is identical that the second structure connecting sheet connects chip architecture with first.
In above-mentioned a kind of single motor three-tube type liftable desk, the first hole, location on the first column and the first card
The first positioning convex point on part is corresponding；The first detent on first column and the first locating convex block phase on the first fastener
Corresponding；The second hole, location on second column is corresponding with the second positioning convex point on the second fastener, second on the second column
The second positioning convex point on detent and the second fastener is corresponding；Wherein, the side of the first positioning convex point and the second convex
The equal trimming in side of point.
In above-mentioned a kind of single motor three-tube type liftable desk, the middle part of base plate is that hollow form is arranged, along base plate
The length direction of bottom surface be that a word offers several square slotted eyes；The two ends symmetry of base plate is each provided with a lower margin, and ground
Foot removably connects with base plate.
In above-mentioned a kind of single motor three-tube type liftable desk, described circuit for alarming includes: the 8th resistance R8, police
Report device BUZ, the 7th diode D7, the second audion Q2, and the 9th resistance R9, described 8th resistance R8 one end connects power supply electricity
Pressure VCC, its other end is connected with one end, the negative electrode of the 7th diode D7 of siren BUZ respectively, the other end of siren BUZ
With the anode of the 7th diode D7 and together be connected with the emitter stage of the second triode Q2, the current collection of described second audion Q2
Pole connects ground wire, and the base stage of the second audion Q2 connects one end of the 9th resistance R9 and forms circuit for alarming, and described resistance R9's is another
One end connects the 13rd pin of the first chip IC 1.
In above-mentioned a kind of single motor three-tube type liftable desk, described power supply stabilization circuit includes: first patches
Part CN1, the first varistor ZNR1, the first electric capacity C1, the first electrochemical capacitor E1, the second diode D2, the first resistance R1, second
Resistance R2, the second electric capacity C2, the 3rd electric capacity C3, the first Zener diode ZD1, the second electrochemical capacitor E2, the 4th electric capacity C4, second
Chip IC the 2, the 3rd resistance R3, the first inductance L1, the 5th electric capacity C5, the 3rd electrochemical capacitor E3, the 6th electric capacity C6, the 3rd diode
D3, the 4th resistance R4, the 4th diode D4, the second connector CN2, the 21st resistance R21, the first LED 1,
20th resistance R20, the 5th diode D5, the 6th diode D6, the 18th resistance R18, the 7th audion Q7, the 6th audion
Q6, the 19th resistance R19, the 5th electrochemical capacitor E5, the 14th electric capacity C14, the first transistor TR1, the 6th electric capacity C6, the 4th electricity
Solve electric capacity E4, the 7th electric capacity C7；
Described first electrochemical capacitor E1 and the first varistor ZNR1, the first electric capacity C1 are in parallel, described first electrochemical capacitor
The minus earth line of E1, its positive pole meets the first connector CN1, described second diode D2 and connects the positive pole of the first electrochemical capacitor E1,
The negative electrode of the second diode D2 connects the positive pole of the second electrochemical capacitor E2, and the minus earth line of described second electrochemical capacitor E2 is described
4th electric capacity C4 two ends are connected on the both positive and negative polarity of the second electrochemical capacitor E2, described first Zener diode ZD1 and the second resistance respectively
R2, the 4th electric capacity C4 are in parallel, and the negative electrode of the first Zener diode ZD1 connects another of the first resistance R1, described first resistance R1
End connects the positive pole of the second electrochemical capacitor E2, and the anode of described first Zener diode ZD1 connects one end of the second electric capacity C2, described
Another of second electric capacity C2 terminates the positive pole of the second electrochemical capacitor E2；
5th pin of described second chip IC 2 connects one end of the 4th resistance R4, the other end of described 4th resistance R4
Ground connection, the 4th pin ground connection of the second chip IC 2, the 3rd pin of the second chip IC 2 connects one end of the 5th electric capacity C5, and described
The E3 negative pole of another termination the 3rd electrochemical capacitor of five electric capacity C5, the minus earth of described 3rd electrochemical capacitor E3, the 3rd electrolysis electricity
The positive pole holding E3 connects one end of the first inductance L1, and another of described first inductance L1 terminates the second pin of the second chip IC 2, institute
The negative electrode stating the 3rd diode D3 connects the second pin of the second chip IC 2, and the anode of the 3rd diode D3 connects the 3rd electrochemical capacitor
The negative pole of E3, the two-stage of described 6th electric capacity C6 is connected on the both positive and negative polarity of the 3rd electrochemical capacitor, the one of described 3rd resistance R3 respectively
Terminate the positive pole of the 3rd electrochemical capacitor E3, its another terminate the 5th pin of the second chip IC 2；
Described second connector is provided with 3 interfaces, the second interfacing ground of described second connector, and its 3rd interface connects
16th pin of one chip IC 1, the second connector first interface meets the negative electrode of the 4th diode D4, described 4th diode D4
Anode connect the positive pole of the 3rd electrochemical capacitor E3, No. 1 of a termination second plug connector CN2 of described 21st resistance R21 connects
Mouthful, its another terminate the anode of the first LED 1, the minus earth of described first LED 1, described the
The anode of one termination first LED 1 of 20 resistance R20, its another terminate the 17th of the first chip IC 1 and draw
Foot；
The anode of described 5th diode D5 connects the positive pole of the 3rd electrochemical capacitor E3, and its negative electrode connects the 18th resistance R18's
One end, the emitter stage of another termination the 6th audion Q6 of described 18th resistance R18, the colelctor electrode of described 6th audion Q6
Ground connection, its base stage connects the emitter stage of the 19th resistance R19, described 7th audion Q7 and connects the negative electrode of the 5th diode D5, its base
Pole connects the emitter stage of the 6th audion Q6, the positive pole of colelctor electrode the 5th electrochemical capacitor E5 of the 7th audion Q7, described 5th electricity
Solving the minus earth of electric capacity E5, the positive pole of described 5th electrochemical capacitor E5 meets the first transistor TR1, described the first transistor TR1
Another termination supply voltage VDD, the 14th electric capacity C14 connect be connected on respectively on the both positive and negative polarity of the 5th electrochemical capacitor E5, described
The anode of the 6th diode D6 connects the 3rd electrochemical capacitor E3 positive pole, and its negative electrode connects the positive pole of the 4th electrochemical capacitor E4, the 4th electrolysis
Electric capacity E4 minus earth, described 7th electric capacity C7 two ends are connected on the both positive and negative polarity of the 4th electrochemical capacitor E4 respectively, the 4th electrolysis electricity
The positive pole held meets supply voltage VCC.
In above-mentioned a kind of single motor three-tube type liftable desk, described execution circuit includes: the 11st electric capacity
C11, the 23rd resistance R23, the 3rd Transient Suppression Diode T3, the first switch SW1, the second Transient Suppression Diode T2, the
25 resistance R25, second switch SW2, the 13rd electric capacity C13, the first Transient Suppression Diode T1, the 24th resistance R24,
Second electric capacity C2, the 3rd switch SW3, the 5th audion Q5, the 30th resistance R30, the 31st resistance R31；
The base stage of described 5th audion Q5 connects one end of the 30th resistance R30, the other end of described 30th resistance R30
Connect the 16th pin of the first chip IC 1, one end ground connection of described 31st resistance R31, its another termination the 5th audion
The base stage of Q5, the grounded collector of described 5th audion Q5；
First connects branch road: the emitter stage of described 5th audion Q5 meets one end of the 3rd Transient Suppression Diode T3, institute
State the 3rd Transient Suppression Diode T3 and connect one end of the 23rd resistance R23, one end of the 13rd electric capacity C13, the described 20th
Another termination supply voltage VCC of three resistance R23, the other end ground connection of described 13rd electric capacity C13；Described first switch SW1
One end ground connection, its another termination the 3rd Transient Suppression Diode T3, described first connects branch road connects the of the first chip IC 1
Seven pins；
Second connects branch road: the emitter stage of described 5th audion Q5 meets one end of the first Transient Suppression Diode T1, institute
State another termination one end of the 25th resistance R25, one end of the 13rd electric capacity C13 of the first Transient Suppression Diode T1, institute
State the 25th resistance R25 another termination supply voltage VCC, the other end ground connection of described 13rd electric capacity C13, described second
Switch SW2 one end ground connection, its another terminate the first Transient Suppression Diode, described second connects branch road connects the first chip IC 1
The 5th pin；
3rd connects branch road: the emitter stage of described 5th audion Q5 connects one end of the second Transient Suppression Diode T2, institute
State another termination one end of the 24th resistance R24, one end of the 12nd electric capacity C12 of the second Transient Suppression Diode T2, institute
Stating another termination supply voltage VCC of the 24th resistance, the other end ground connection of described 12nd electric capacity C12, the described 3rd opens
One end ground connection closed, its another termination the 3rd Transient Suppression Diode, the described 3rd connects branch road connects the of the first chip IC 1
Six pins.
In above-mentioned a kind of single motor three-tube type liftable desk, described motor-drive circuit includes: the 8th electric capacity
C8, the second Zener diode D2, the 7th resistance R7, the first audion Q1, the first diode D1, the 22nd resistance R22, the 6th
Resistance R6, the first relay R L1, the second relay R L2, the 8th diode D8, the 3rd audion Q3, the 27th resistance R27,
26th resistance R26, the 3rd varistor ZNR3, the 9th electric capacity C9, the 4th audion Q4, the 29th resistance R29, second
18 resistance R28；
Described 8th electric capacity C8 two end is connected in the anode and cathode of the second Zener diode ZD2, described second Zener diode
The plus earth of ZD2, its negative electrode connects one end of the 7th resistance R7, and the other end the first audion Q1 of described 7th resistance R7 sends out
Emitter-base bandgap grading, the base stage of described first audion Q1 connects one end of the 6th resistance R6, and the other end ground connection of described 6th resistance R6 is described
22nd resistance R22 one termination the first audion Q1 base stage, its another terminate the first chip IC 1 the 18th pin；
The colelctor electrode of described first audion Q1 connects the anode of the first diode D1, and the negative electrode of affiliated first diode D1 connects
24V voltage, the colelctor electrode of the first audion Q1 connects one end of the first relay R L1, the port that the first relay R L1 is other
Connecing 24V voltage, described first relay R L1 also has one end that a port meets the 9th electric capacity C9, the other end of the 9th electric capacity C9
Connect one end of the second relay R L2, the colelctor electrode of the termination first audion Q1 that the second relay R L2 is other, the second electromagnetism
Switch RL2 also has a port to connect 24V voltage.
Compared with prior art, a kind of single motor three-tube type liftable desk that the present invention provides, is driven by single motor
Dynamic drive rod rotation, thus drive the gear train synchronous rotary in the gear-box of both sides, and then realize both sides screw rod synchronous operation, make
The both sides lifting assembly obtaining desk synchronizes rise and fall, and additionally lifting assembly includes three mutually nested columns, it is achieved
Secondary transmission so that the adjustable height changing desk becomes more precisely and reliable.
Accompanying drawing explanation
Fig. 1 is the structural representation of a kind of single motor three-tube type liftable desk that the present invention provides.
Fig. 2 is the structural representation at another visual angle of the desk shown in Fig. 1.
Fig. 3 is a preferred embodiment of the present invention middle gear case and the structural representation of elevating mechanism.
Fig. 4 is gear-box shown in Fig. 3 and the structural representation at another visual angle of elevating mechanism.
Fig. 5 is the explosive view of elevating mechanism in a preferred embodiment of the present invention.
Fig. 6 is a preferred embodiment of the present invention middle gear case and elevating mechanism internal structure schematic diagram.
Fig. 7 is the embodiment block diagram of a kind of control circuit of the present invention；
Fig. 8 is the present invention the first chip diagram；
Fig. 9 is circuit for alarming diagram of the present invention；
Figure 10 is power supply stabilization circuit diagram of the present invention；
Figure 11 is that the present invention performs circuit diagram；
Figure 12 is motor-drive circuit diagram of the present invention.
In figure, 100, bracket；110, first crossbeam；120, second cross beam；130, supporting plate；140, gear-box；150, install
Plate；200, drive mechanism；210, motor；220, drive link；300, Double Motor Control box；310, microprocessor；320, alarm electricity
Road；330, circuit is performed；340, motor-drive circuit；400, elevating mechanism；410, lifting assembly；411, the first column；411a、
First fall way；411b, the first installing hole, 411c, the first hole, location；411d, the first detent；411e, the 6th hole, location；
411f, the second installing hole；412, the second column；412a, the second fall way；412b, the first fastener；412c, positioning sleeve；412d、
A connecting piece；412e, the second hole, location；412f, the second detent；412g, the first connecting hole；412h, the 3rd hole, location；
412i, the first locating convex block；412j, the first positioning convex point；412k, through hole；412l, the second connecting hole；412m, the 4th location
Hole；412n, the 3rd connecting hole；412o, the first locating dowel；413, the 3rd column；413a, the 3rd fall way；413b, the second card
Part；413c, the second connection sheet；413d, the 5th hole, location；413e, the second locating dowel；413f, the 4th connecting hole；413g, second
Locating convex block；413h, the second positioning convex point；414, fixed cover；415, axle sleeve；416, adapter sleeve；416a, the 3rd locating dowel；
416b, the 4th connecting hole；500, base plate；510, square slotted eye；520, the 3rd installing hole；530, lower margin.
Detailed description of the invention
The following is the specific embodiment of the present invention and combine accompanying drawing, technical scheme is further described,
But the present invention is not limited to these embodiments.
As depicted in figs. 1 and 2, single motor three-tube type liftable desk that the present invention provides, including: bracket 100, including
About two groups are arranged side by side first crossbeam 110, and often the quantity of group first crossbeam 110 is two, and between two groups of first crossbeams 110
By the removable connection of second cross beam 120, wherein, often the side of group first crossbeam 110 is each provided with supporting plate 130 and a gear
Case 140；Drive mechanism 200, is installed on one of which first crossbeam 110, and the outfan of drive mechanism 200 respectively with left and right
The gear-box 140 of both sides is connected, and drives both sides gear-box 140 middle gear group to run simultaneously by drive mechanism 200；Single motor control
Box 300 processed, two ends are respectively arranged on two second cross beams 120, and electrically connect with drive mechanism 200；Elevating mechanism 400, bag
Include two lifting assemblies 410 being symmetricly set in bracket 100 both sides, and one end of two lifting assemblies 410 is respectively by two pieces
Installing plate 150 is connected on the two groups of first crossbeams 110 in left and right；Two base plates 500, are connected to another of lifting assembly 410
End.
Preferably, as depicted in figs. 1 and 2, drive mechanism 200 includes: motor 210, is installed on installing plate 150；Transmission
Bar 220, two ends are connected with the gear train in gear-box 140 respectively, wherein, the middle part of drive link 220 and the output shaft of motor 210
It is connected, drives drive link 220 to rotate by motor 210, thus driven gear group rotates, and then realize the upper of lifting assembly 410
Lower movement.
Preferably, as depicted in figs. 1 and 2, the outbound course of motor 210 is vertical with the rotation direction of drive link 220, and with
The moving direction of lifting assembly 410 is parallel.
Preferably, as shown in Fig. 3, Fig. 4, Fig. 5 and Fig. 6, lifting assembly 410 includes: three the most mutually nested
One column the 411, second column 412 and the 3rd column 413；Screw rod, is nested in the 3rd column 413, and one end of screw rod with
Gear train is connected；Fixed cover 414, is located on screw rod, and is fixed by axle sleeve 415, limits fixed cover 414 on screw rod
Move radially.
Preferably, as shown in Fig. 3, Fig. 4, Fig. 5 and Fig. 6, the first column 411 includes: include the first fall way 411a, one
End is blind end, and is provided with the first installing hole 411b along each angle, of blind end, and realizes detachable between base plate 500
Connecting, the other end is opening, and circular array is provided with several first location hole 411c, wherein, has the first location
It is provided with several first detents 411d, by the first hole, location on the side edge edge of the first fall way 411a of hole 411c
411c and the first detent 411d, limits the shortest relative distance between the first column 411 and the second column 412.
Preferably, as shown in Fig. 3, Fig. 4, Fig. 5 and Fig. 6, the second column 412 includes: the second fall way 412a；First card
Part 412b, is nested in one end of the second fall way 412a, and is positioned at the outside of the second fall way 412a；Positioning sleeve 412c, nested
In the other end of the second fall way 412a, and it is positioned at inside the second fall way 412a；Several a connecting piece 412d, along nested
The outside circular array having the second fall way 412a of positioning sleeve 412c one end is arranged, as the second fall way 412a and location
Connecting portion between set 412c.
Preferably, as shown in Fig. 3, Fig. 4, Fig. 5 and Fig. 6, it is nested with first fall way of first fastener 412b one end
The upper circular array of 411a be provided with several second location hole 412e, and this end side edge along on be provided with several second
Detent 412f, by the second location hole 412e and the second detent 412f, limits the second column 412 and the 3rd column
The shortest relative distance between 413；It is nested with circular array on the first fall way 411a of positioning sleeve 412c one end to be provided with
Several first connecting holes 412g, and the both sides of each first connecting hole 412g be each provided with one the 3rd location hole 412h.
Preferably, as shown in Fig. 3, Fig. 4, Fig. 5 and Fig. 6, it is symmetrically arranged with along the sidewall of first fastener 412b one end
Two the first locating convex block 412i, and the position of the first locating convex block 412i is corresponding with the position of the first detent 411d,
When preventing the second column 412 from retracting, in direct retraction the first column 411, thus improve the reliability of desk；Along the first fastener
On the sidewall of the 412b other end, circular array is provided with several first positioning convex points 412j, and the first positioning convex point 412j
Position is corresponding with the position of the first location hole 411c, improves the reliability of desk further.
Preferably, as shown in Fig. 3, Fig. 4, Fig. 5 and Fig. 6, the thickness direction along positioning sleeve 412c offers through hole 412k,
Match with fixed cover 414, pilot hole when lifting as the second column 412；One end circular array along positioning sleeve 412c
It is provided with several second connecting holes 412l, and the both sides of each second connecting hole 412l is each provided with the 4th location hole 412m,
Wherein, the position of the second connecting hole 412l is corresponding with the position of the first connecting hole 412g, as the second column 412 and positioning sleeve
Connecting portion between 412c；The position of the 4th location hole 412m is corresponding, as second with the position of the 3rd location hole 412h
Position point between column 412 and positioning sleeve 412c.
Preferably, as shown in Fig. 3, Fig. 4, Fig. 5 and Fig. 6, the thickness direction along a connecting piece 412d is provided with the 3rd
Connecting hole 412n, and the position of the 3rd connecting hole 412n respectively with the first connecting hole 412g and the position phase of the second connecting hole 412l
Corresponding；The both sides of the 3rd connecting hole 412n are each provided with one first locating dowel 412o, and the first locating dowel 412o is positioned at first even
The side of contact pin 412d, wherein, the position of the first locating dowel 412o and the 3rd location hole 412h and the position of the 4th location hole 412m
Put corresponding, make the connection between the second column 412 and positioning sleeve 412c more accurate by a connecting piece 412d, from
And make the relative displacement between the second column 412 and the first column 411 change more smoothly.
Preferably, as shown in Fig. 3, Fig. 4, Fig. 5 and Fig. 6, the 3rd column 413 includes: the 3rd fall way 413a；Second card
Part 413b, is nested in one end of the 3rd fall way 413a；Several second connections sheet 413c, circular array is arranged at the 3rd liter
The other end of fall pipe 413a, wherein, the structure of the second connection sheet 413c is identical with a connecting piece 412d structure.
Preferably, as shown in Fig. 3, Fig. 4, Fig. 5 and Fig. 6, the 3rd fall way of second connection sheet 413c one end is installed
The upper circular array of 413a is provided with several the 5th location hole 413d, and is connected the second location of side on sheet 413c with second
The position of post 413e is corresponding；If being nested with circular array on the 3rd fall way 413a of second fastener 413b one end to be provided with
Dry the 4th connecting hole 413f, and the 4th connecting hole 413f is as the connecting portion between the 3rd fall way 413a and gear-box 140.
Preferably, as shown in Fig. 3, Fig. 4, Fig. 5 and Fig. 6, it is symmetrical arranged along the sidewall of one end of the second fastener 413b
There are two the second locating convex block 413g, and the position of the second locating convex block 413g is relative with the position of the second detent 412f
Should, when preventing the 3rd column 413 from retracting, in direct retraction the second column 412, improve the reliability of desk；Along the second fastener
On the sidewall of the 413b other end, circular array is provided with several second positioning convex points 413h, and the second positioning convex point 413h position
Put corresponding with the position of the second location hole 412e, improve the reliability of desk further.
Preferably, as shown in Fig. 3, Fig. 4, Fig. 5 and Fig. 6, it is heavy that the first connecting hole 412g and the second connecting hole 412l is
Hole, and the first connecting hole 412g and the second connecting hole 412l is screwed hole, the 3rd connecting hole 412n and the 4th connecting hole 413f is equal
For unthreaded hole.
Preferably, as shown in Fig. 3, Fig. 4, Fig. 5 and Fig. 6, the first fall way 411a, the second fall way 412a and the 3rd liter
The cross section of fall pipe 413a can be square, circular and polygon etc..
Preferably, as shown in Fig. 3, Fig. 4, Fig. 5 and Fig. 6, the first positioning convex point 412j's and the second positioning convex point 413h
Mechanism is identical, wherein, the side of the first positioning convex point 412j and the equal trimming in side of the second positioning convex point 413h, the i.e. first location
The cross section of salient point 412j and the cross section of the second positioning convex point 413h are tetragon.
Preferably, as shown in Fig. 3, Fig. 4, Fig. 5 and Fig. 6, the screw rod away from axle sleeve 415 one end is provided with adapter sleeve
416, and the axis direction circular array of adapter sleeve 416 is provided with two the 3rd locating dowels 416a and two the 5th connecting holes
416b, and the 3rd locating dowel 416a and the 5th connecting hole 416b spaced, wherein, the position and first of the 3rd locating dowel 416a
On column 411, the position of the 6th location hole 411e is corresponding；The position of the 5th connecting hole 416b and the second peace on the first column 411
The position of dress hole 411f is corresponding, it is achieved the accurate installation of adapter sleeve 416.
Preferably, as it is shown in figure 1, the middle part of base plate 500 is hollow form setting, along the length direction of the bottom surface of base plate 500
Offer several square slotted eyes 510 in a word, wherein, be positioned at the square slotted eye 510 in the middle part of base plate 500 bottom surface corresponding the end of at
It is provided with the 3rd installing hole 520 on each angle, in region, plate 500 surface, and the position of the 3rd installing hole 520 is installed with first
The position of hole 411b is corresponding, it is achieved removably connecting between the first column 411 and base plate 500；The two ends of base plate 500 are symmetrical
It is each provided with a lower margin 530, and lower margin 530 removably connects with base plate 500, lays the ground at desk place in order to leveling.
Preferably, the lifting unit of lifting assembly 410 can be arranged at the side leaned on into base plate 500.
A kind of single motor three-tube type liftable desk that the present invention provides, first passes through single motor control box 300 and opens
The motor 210 being installed on second cross beam 120, and make the gear train in both sides gear-box 140 synchronize to turn by drive link 220
Dynamic, thus drive the screw rod synchronous rotary in both sides lifting assembly 410, when motor 210 rotates forward, in lifting assembly 410
The second column 412 or the 3rd column 413 rise so that relative displacement between bracket 100 and base plate 500 becomes big；Work as motor
During 210 reversion, the second column 412 or the 3rd column 413 in lifting assembly 410 decline so that bracket 100 and base plate 500 it
Between relative displacement diminish, until the first locating convex block 412i and the first detent 411d phase clamping, the first positioning convex point
412j and first location hole 411c is nested, and stops the motion of the second column 412；Second locating convex block 413g and second location is recessed
Groove 412f phase clamping, the second positioning convex point 413h and second location hole 412e412e is nested, and stops the fortune of the 3rd column 413
Dynamic.
A kind of single motor three-tube type liftable desk that the present invention provides, drives drive link 220 turns by single motor 210
Dynamic, thus drive the gear train synchronous rotary in both sides gear-box 140, and then realize both sides screw rod synchronous operation so that office
The both sides lifting assembly 410 of table synchronizes rise and fall, and additionally lifting assembly 410 includes three mutually nested columns, it is achieved
Secondary transmission so that the adjustable height changing desk becomes more precisely and reliable.
As shown in Fig. 7-Figure 12, single motor control box 300 circuit includes: microprocessor 310, circuit for alarming 320, power supply are steady
Volt circuit, and perform circuit 330 and motor-drive circuit 340, wherein, described microprocessor 310 sends a signal to motor and drives
Galvanic electricity road 340, described motor-drive circuit 340 accepts signal and adjusts the duty of motor, described motor-drive circuit 340
Generating feedback signal according to the duty of motor and be sent to microprocessor 310, described microprocessor 310 is according to feedback signal control
Perform the switch of circuit 330 and control the switch of circuit for alarming 320.
Described microprocessor 310 comprises the first chip IC 1, and the model of described first chip IC 1 is 15w404as, described electricity
Source mu balanced circuit comprises the second chip IC 2, and the model of described second chip IC 2 is 34063.
Described circuit for alarming 320 includes: the 8th resistance R8, siren BUZ, the 7th diode D7, the second audion Q2, with
And the 9th resistance R9, described 8th resistance R8 one end connects supply voltage VCC, its other end respectively with one end of siren BUZ,
The negative electrode of the 7th diode D7 is connected, the other end of siren BUZ and the anode of the 7th diode D7 together with the two or three
The emitter stage of level pipe Q2 is connected, and the colelctor electrode of described second audion Q2 connects ground wire, and the base stage of the second audion Q2 connects the
One end of nine resistance R9 forms circuit for alarming 320, and the other end of described resistance R9 connects the 13rd pin of the first chip IC 1.
Described power supply stabilization circuit includes: the first connector CN1, the first varistor ZNR1, the first electric capacity C1, the first electricity
Solve electric capacity E1, the second diode Q2, the first resistance R1, the second resistance R2, the second electric capacity C2, the 3rd electric capacity C3, the first voltage stabilizing two
Pole pipe ZD1, the second electrochemical capacitor E2, the 4th electric capacity C4, the second chip IC the 2, the 3rd resistance R3, the first inductance L1, the 5th electric capacity
C5, the 3rd electrochemical capacitor E3, the 6th electric capacity C6, the 3rd diode D3, the 4th resistance R4, the 4th diode D4, the second connector
CN2, the 21st resistance R21, the first LED the 1, the 20th resistance R20, the 5th diode D5, the 18th resistance
R18, the 7th audion Q7, the 6th audion Q6, the 19th resistance R19, the 5th electrochemical capacitor E5, the 14th electric capacity C14, first
Transistor TR1, the 6th electric capacity C6, the 4th electrochemical capacitor E4, the 7th electric capacity C7；
Described first electrochemical capacitor E1 and the first varistor ZNR1, the first electric capacity C1 are in parallel, described first electrochemical capacitor
The minus earth line of E1, its positive pole meets the first connector CN1, described second diode D2 and connects the positive pole of the first electrochemical capacitor E1,
The negative electrode of the second diode D2 connects the positive pole of the second electrochemical capacitor E2, and the minus earth line of described second electrochemical capacitor E2 is described
4th electric capacity C4 two ends are connected on the both positive and negative polarity of the second electrochemical capacitor E2, described first Zener diode ZD1 and the second resistance respectively
R2, the 4th electric capacity C4 are in parallel, and the negative electrode of the first Zener diode ZD1 connects another of the first resistance R1, described first resistance R1
End connects the positive pole of the second electrochemical capacitor E2, and the anode of described first Zener diode ZD1 connects one end of the second electric capacity C2, described
Another of second electric capacity C2 terminates the positive pole of the second electrochemical capacitor E2；
5th pin of described second chip IC 2 connects one end of the 4th resistance R4, the other end of described 4th resistance R4
Ground connection, the 4th pin ground connection of the second chip IC 2, the 3rd pin of the second chip IC 2 connects one end of the 5th electric capacity C5, and described
The E3 negative pole of another termination the 3rd electrochemical capacitor of five electric capacity C5, the minus earth of described 3rd electrochemical capacitor E3, the 3rd electrolysis electricity
The positive pole holding E3 connects one end of the first inductance L1, and another of described first inductance L1 terminates the second pin of the second chip IC 2, institute
The negative electrode stating the 3rd diode D3 connects the second pin of the second chip IC 2, and the anode of the 3rd diode D3 connects the 3rd electrochemical capacitor
The negative pole of E3, the two-stage of described 6th electric capacity C6 is connected on the both positive and negative polarity of the 3rd electrochemical capacitor, the one of described 3rd resistance R3 respectively
Terminate the positive pole of the 3rd electrochemical capacitor E3, its another terminate the 5th pin of the second chip IC 2；
Described second connector is provided with 3 interfaces, the second interfacing ground of described second connector, and its 3rd interface connects
16th pin of one chip IC 1, the second connector first interface meets the negative electrode of the 4th diode D4, described 4th diode D4
Anode connect the positive pole of the 3rd electrochemical capacitor E3, No. 1 of a termination second plug connector CN2 of described 21st resistance R21 connects
Mouthful, its another terminate the anode of the first LED 1, the minus earth of described first LED 1, described the
The anode of one termination first LED 1 of 20 resistance R20, its another terminate the 17th of the first chip IC 1 and draw
Foot；
The anode of described 5th diode D5 connects the positive pole of the 3rd electrochemical capacitor E3, and its negative electrode connects the 18th resistance R18's
One end, the emitter stage of another termination the 6th audion Q6 of described 18th resistance R18, the colelctor electrode of described 6th audion Q6
Ground connection, its base stage connects the emitter stage of the 19th resistance R19, described 7th audion Q7 and connects the negative electrode of the 5th diode D5, its base
Pole connects the emitter stage of the 6th audion D6, the positive pole of colelctor electrode the 5th electrochemical capacitor E5 of the 7th audion Q7, described 5th electricity
Solving the minus earth of electric capacity E5, the positive pole of described 5th electrochemical capacitor E5 meets the first transistor TR1, described the first transistor TR1
Another termination supply voltage VDD, the 14th electric capacity C14 connect be connected on respectively on the both positive and negative polarity of the 5th electrochemical capacitor E5, described
The anode of the 6th diode D6 connects the 3rd electrochemical capacitor E3 positive pole, and its negative electrode connects the positive pole of the 4th electrochemical capacitor E4, the 4th electrolysis
Electric capacity E4 minus earth, described 7th electric capacity C7 two ends are connected on the both positive and negative polarity of the 4th electrochemical capacitor E4 respectively, the 4th electrolysis electricity
The positive pole held meets supply voltage VCC.
Described execution circuit 330 includes: the 11st electric capacity C11, the 23rd resistance R23, the 3rd Transient Suppression Diode
T3, the first switch SW1, the second Transient Suppression Diode T2, the 25th resistance R25, second switch SW2, the 13rd electric capacity
C13, the first Transient Suppression Diode T1, the 24th resistance R24, the second electric capacity C2, the 3rd switch SW3, the 5th audion Q5,
30th resistance R30, the 31st resistance R31；
The base stage of described 5th audion Q5 connects one end of the 30th resistance R30, the other end of described 30th resistance R30
Connect the 16th pin of the first chip IC 1, one end ground connection of described 31st resistance R31, its another termination the 5th audion
The base stage of Q5, the grounded collector of described 5th audion Q5；
First connects branch road: the emitter stage of described 5th audion Q5 meets one end of the 3rd Transient Suppression Diode T3, institute
State the 3rd Transient Suppression Diode T3 and connect one end of the 23rd resistance R23, one end of the 13rd electric capacity C13, the described 20th
Another termination supply voltage VCC of three resistance R23, the other end ground connection of described 13rd electric capacity C13；Described first switch SW1
One end ground connection, its another termination the 3rd Transient Suppression Diode T3, described first connects branch road connects the of the first chip IC 1
Seven pins；
Second connects branch road: the emitter stage of described 5th audion Q5 meets one end of the first Transient Suppression Diode T1, institute
State another termination one end of the 25th resistance R25, one end of the 13rd electric capacity C13 of the first Transient Suppression Diode T1, institute
State the 25th resistance R25 another termination supply voltage VCC, the other end ground connection of described 13rd electric capacity C13, described second
Switch SW2 one end ground connection, its another terminate the first Transient Suppression Diode, described second connects branch road connects the first chip IC 1
The 5th pin；
3rd connects branch road: the emitter stage of described 5th audion Q5 connects one end of the second Transient Suppression Diode T2, institute
State another termination one end of the 24th resistance R24, one end of the 12nd electric capacity C12 of the second Transient Suppression Diode T2, institute
Stating another termination supply voltage VCC of the 24th resistance, the other end ground connection of described 12nd electric capacity C12, the described 3rd opens
One end ground connection closed, its another termination the 3rd Transient Suppression Diode, the described 3rd connects branch road connects the of the first chip IC 1
Six pins.
Described motor-drive circuit 340 includes: the 8th electric capacity C8, the second Zener diode D2, the 7th resistance R7, the one or three
Pole pipe Q1, the first diode D1, the 22nd resistance R22, the 6th resistance R6, the first relay R L1, the second relay R L2,
Eight diode D8, the 3rd audion Q3, the 27th resistance R27, the 26th resistance R26, the 3rd varistor ZNR3, the 9th
Electric capacity C9, the 4th audion Q4, the 29th resistance R29, the 28th resistance R28；
Described 8th electric capacity C8 two end is connected in the anode and cathode of the second Zener diode ZD2, described second Zener diode
The plus earth of ZD2, its negative electrode connects one end of the 7th resistance R7, and the other end the first audion Q1 of described 7th resistance R7 sends out
Emitter-base bandgap grading, the base stage of described first audion Q1 connects one end of the 6th resistance R6, and the other end ground connection of described 6th resistance R6 is described
22nd resistance R22 one termination the first audion Q1 base stage, its another terminate the first chip IC 1 the 18th pin；
The colelctor electrode of described first audion Q1 connects the anode of the first diode D1, and the negative electrode of affiliated first diode D1 connects
24V voltage, the colelctor electrode of the first audion Q1 connects one end of the first relay R L1, the port that the first relay R L1 is other
Connecing 24V voltage, described first relay R L1 also has one end that a port meets the 9th electric capacity C9, the other end of the 9th electric capacity C9
Connect one end of the second relay R L2, the colelctor electrode of the termination first audion Q1 that the second relay R L2 is other, the second electromagnetism
Switch RL2 also has a port to connect 24V voltage.
Specific embodiment described herein is only to present invention spirit explanation for example.Technology neck belonging to the present invention
Described specific embodiment can be made various amendment or supplements or use similar mode to replace by the technical staff in territory
Generation, but without departing from the spirit of the present invention or surmount scope defined in appended claims.
Claims (10)
1. a single motor three-tube type liftable desk, it is characterised in that including:
Bracket, is arranged side by side first crossbeam including about two groups, and removable by second cross beam between first crossbeam described in two groups
Formula connects, and wherein, the side often organizing described first crossbeam is each provided with a supporting plate and a gear-box；
Drive mechanism, is installed on first crossbeam described in one of which, and the outfan of described drive mechanism respectively with left and right two
The described gear-box of side is connected；
Single motor control box, two ends are respectively arranged on two described second cross beams, and electrically connect with described drive mechanism；
Elevating mechanism, including two lifting assemblies being symmetricly set in described bracket both sides, and the one of two described lifting assemblies
End is connected on first crossbeam described in two groups, left and right by two pieces of installing plates respectively；
Two base plates, are connected to the other end of described lifting assembly；
Also include that the single motor control box circuit for described elevating mechanism, described single motor control box circuit include micro-process
Device, circuit for alarming, power supply stabilization circuit, and perform circuit and motor-drive circuit, wherein, described microprocessor sends signal
To motor-drive circuit, described motor-drive circuit accepts signal and adjusts the duty of motor, described motor-drive circuit root
Generating feedback signal according to the duty of motor and be sent to microprocessor, described microprocessor controls to perform electricity according to feedback signal
The switch on road and the switch of control circuit for alarming, described microprocessor comprises the first chip IC 1, described first chip IC 1
Model is 15w404as, and described power supply stabilization circuit comprises the second chip IC 2, and the model of described second chip IC 2 is 34063.
A kind of single motor three-tube type liftable desk the most according to claim 1, it is characterised in that described lifting assembly
Including:
Three the first columns the most mutually nested, the second column and the 3rd column；
Screw rod, is nested in described 3rd column, and one end of described screw rod is connected with described gear train；
Fixed cover, is located on described screw rod, and is fixed by axle sleeve.
A kind of single motor three-tube type liftable desk the most according to claim 1, it is characterised in that described drive mechanism
Including:
Motor, is installed on described installing plate；
Drive link, two ends are connected with the gear train in described gear-box respectively；
Wherein, the outbound course of described motor is vertical with the rotation direction of described drive link, and with the movement of described lifting assembly
Direction is parallel.
A kind of single motor three-tube type liftable desk the most according to claim 2, it is characterised in that described second column
Including:
Second fall way；
First fastener, is nested in one end of described second fall way, and is positioned at the outside of described second fall way；
Positioning sleeve, is nested in the other end of described second fall way, and is positioned at inside described second fall way, and along described location
The thickness direction of set offers the through hole matched with described fixed cover；
Several a connecting piece, the outside circular array along described second fall way being nested with described positioning sleeve one end sets
Put；
Described 3rd column includes:
3rd fall way；
Second fastener, is nested in one end of described 3rd fall way；
Several the second connection sheets, circular array is arranged at the other end of described 3rd fall way；
Wherein, the structure of described second connection sheet is identical with described first connection chip architecture.
A kind of single motor three-tube type liftable desk the most according to claim 4, it is characterised in that described first column
On first location hole corresponding with the first positioning convex point on described first fastener；The first location on described first column is recessed
Groove is corresponding with the first locating convex block on described first fastener；The second hole, location on described second column and described second card
The second positioning convex point on part is corresponding, and the second detent on described second column is fixed with second on described second fastener
Position salient point is corresponding；Wherein, the side of described first positioning convex point and the equal trimming in side of described second positioning convex point.
A kind of single motor three-tube type liftable desk the most according to claim 1, it is characterised in that in described base plate
Portion is that hollow form is arranged, and the length direction along the bottom surface of described base plate is that a word offers several square slotted eyes；Described base plate
Two ends symmetry be each provided with a lower margin, and lower margin removably connects with base plate.
A kind of single motor three-tube type liftable desk the most according to claim 1, it is characterised in that described circuit for alarming
Including: the 8th resistance R8, siren BUZ, the 7th diode D7, the second audion Q2, and the 9th resistance R9, described 8th electricity
Resistance R8 one end connects supply voltage VCC, and its other end is connected with one end, the negative electrode of the 7th diode D7 of siren BUZ respectively,
The other end of siren BUZ and the anode of the 7th diode D7 together emitter stage with the second triode Q2 are connected, described
The colelctor electrode of the second audion Q2 connects ground wire, and the base stage of the second audion Q2 connects one end of the 9th resistance R9 and forms alarm electricity
Road, the other end of described resistance R9 connects the 13rd pin of the first chip IC 1.
A kind of single motor three-tube type liftable desk the most according to claim 1, it is characterised in that described power supply voltage stabilizing
Circuit includes: the first connector CN1, the first varistor ZNR1, the first electric capacity C1, the first electrochemical capacitor E1, the second diode
D2, the first resistance R1, the second resistance R2, the second electric capacity C2, the 3rd electric capacity C3, the first Zener diode ZD1, the second electrochemical capacitor
E2, the 4th electric capacity C4, the second chip IC 2, the 3rd resistance R3, the first inductance L1, the 5th electric capacity C5, the 3rd electrochemical capacitor E3,
Six electric capacity C6, the 3rd diode D3, the 4th resistance R4, the 4th diode D4, the second connector CN2, the 21st resistance R21,
First LED the 1, the 20th resistance R20, the 5th diode D5, the 6th diode D6, the 18th resistance R18, the 7th
Audion Q7, the 6th audion Q6, the 19th resistance R19, the 5th electrochemical capacitor E5, the 14th electric capacity C14, the first transistor
TR1, the 6th electric capacity C6, the 4th electrochemical capacitor E4, the 7th electric capacity C7；
Described first electrochemical capacitor E1 and the first varistor ZNR1, the first electric capacity C1 are in parallel, described first electrochemical capacitor E1's
Minus earth line, its positive pole meets the first connector CN1, described second diode D2 and connects the positive pole of the first electrochemical capacitor E1, and second
The negative electrode of diode D2 connects the positive pole of the second electrochemical capacitor E2, the minus earth line of described second electrochemical capacitor E2, and the described 4th
Electric capacity C4 two ends are connected on the both positive and negative polarity of the second electrochemical capacitor E2 respectively, described first Zener diode ZD1 and the second resistance R2,
Four electric capacity C4 are in parallel, and the negative electrode of the first Zener diode ZD1 connects the other end of the first resistance R1, described first resistance R1 and connects
The positive pole of the second electrochemical capacitor E2, the anode of described first Zener diode ZD1 connects one end of the second electric capacity C2, described second electricity
Another holding C2 terminates the positive pole of the second electrochemical capacitor E2；
One end of 5th pin connection the 4th resistance R4 of described second chip IC 2, the other end ground connection of described 4th resistance R4,
4th pin ground connection of the second chip IC 2, the 3rd pin of the second chip IC 2 connects one end of the 5th electric capacity C5, described 5th electricity
Hold the E3 negative pole of another termination the 3rd electrochemical capacitor of C5, the minus earth of described 3rd electrochemical capacitor E3, the 3rd electrochemical capacitor E3
Positive pole connect one end of the first inductance L1, another of described first inductance L1 terminates the second pin of the second chip IC 2, described
The negative electrode of three diode D3 connects the second pin of the second chip IC 2, and the anode of the 3rd diode D3 connects the 3rd electrochemical capacitor E3's
Negative pole, the two-stage of described 6th electric capacity C6 is connected on the both positive and negative polarity of the 3rd electrochemical capacitor, a termination of described 3rd resistance R3 respectively
The positive pole of the 3rd electrochemical capacitor E3, its another terminate the 5th pin of the second chip IC 2；
Described second connector is provided with 3 interfaces, the second interfacing ground of described second connector, and its 3rd interface connects the first core
16th pin of sheet IC1, the second connector first interface connects the negative electrode of the 4th diode D4, the sun of described 4th diode D4
Pole connects the positive pole of the 3rd electrochemical capacitor E3, No. 1 interface of a termination second plug connector CN2 of described 21st resistance R21, its
Another terminates the anode of the first LED 1, the minus earth of described first LED 1, and the described 20th
The anode of one termination first LED 1 of resistance R20, its another terminate the 17th pin of the first chip IC 1；
The anode of described 5th diode D5 connects the positive pole of the 3rd electrochemical capacitor E3, and its negative electrode connects one end of the 18th resistance R18,
The emitter stage of another termination the 6th audion Q6 of described 18th resistance R18, the grounded collector of described 6th audion Q6,
Its base stage connects the emitter stage of the 19th resistance R19, described 7th audion Q7 and connects the negative electrode of the 5th diode D5, and its base stage connects
The emitter stage of six audion Q6, the positive pole of colelctor electrode the 5th electrochemical capacitor E5 of the 7th audion Q7, described 5th electrochemical capacitor
The minus earth of E5, the positive pole of described 5th electrochemical capacitor E5 connects another of the first transistor TR1, described the first transistor TR1
Termination power voltage VDD, the 14th electric capacity C14 connection is connected on the both positive and negative polarity of the 5th electrochemical capacitor E5 respectively, and the described 6th 2
The anode of pole pipe D6 connects the 3rd electrochemical capacitor E3 positive pole, and its negative electrode meets the positive pole of the 4th electrochemical capacitor E4, the 4th electrochemical capacitor E4
Minus earth, described 7th electric capacity C7 two ends are connected on the both positive and negative polarity of the 4th electrochemical capacitor E4 respectively, and the 4th electrochemical capacitor is just
Pole meets supply voltage VCC.
A kind of single motor three-tube type liftable desk the most according to claim 1, it is characterised in that described execution circuit
Including: the 11st electric capacity C11, the 23rd resistance R23, the 3rd Transient Suppression Diode T3, the first switch SW1, the second transient state
Suppression diode T2, the 25th resistance R25, second switch SW2, the 13rd electric capacity C13, the first Transient Suppression Diode T1,
24th resistance R24, the second electric capacity C2, the 3rd switch SW3, the 5th audion Q5, the 30th resistance R30, the 31st electricity
Resistance R31；
The base stage of described 5th audion Q5 connects one end of the 30th resistance R30, another termination the of described 30th resistance R30
16th pin of one chip IC 1, one end ground connection of described 31st resistance R31, its another termination the 5th audion Q5
Base stage, the grounded collector of described 5th audion Q5；
First connects branch road: the emitter stage of described 5th audion Q5 connects one end of the 3rd Transient Suppression Diode T3, and described the
Three Transient Suppression Diode T3 connect one end of the 23rd resistance R23, one end of the 13rd electric capacity C13, described 23rd electricity
Another termination supply voltage VCC of resistance R23, the other end ground connection of described 13rd electric capacity C13；The one of described first switch SW1
End ground connection, its another termination the 3rd Transient Suppression Diode T3, described first connects branch road connects the 7th of the first chip IC 1 and draws
Foot；
Second connects branch road: the emitter stage of described 5th audion Q5 connects one end of the first Transient Suppression Diode T1, and described the
Another termination one end of the 25th resistance R25, one end of the 13rd electric capacity C13 of one Transient Suppression Diode T1, described the
Another termination supply voltage VCC of 25 resistance R25, the other end ground connection of described 13rd electric capacity C13, described second switch
SW2 one end ground connection, its another terminate the first Transient Suppression Diode, described second connects branch road connects the of the first chip IC 1
Five pins；
3rd connects branch road: the emitter stage of described 5th audion Q5 connects one end of the second Transient Suppression Diode T2, and described the
Another termination one end of the 24th resistance R24, one end of the 12nd electric capacity C12 of two Transient Suppression Diode T2, described the
Another termination supply voltage VCC of 24 resistance, the other end ground connection of described 12nd electric capacity C12, described 3rd switch
One end ground connection, its another termination the 3rd Transient Suppression Diode, the described 3rd connects branch road connects the 6th of the first chip IC 1 and draws
Foot.
A kind of single motor three-tube type liftable desk the most according to claim 1, it is characterised in that described motor drives
Galvanic electricity road includes: the 8th electric capacity C8, the second Zener diode D2, the 7th resistance R7, the first audion Q1, the first diode D1,
22nd resistance R22, the 6th resistance R6, the first relay R L1, the second relay R L2, the 8th diode D8, the three or three pole
Pipe Q3, the 27th resistance R27, the 26th resistance R26, the 3rd varistor ZNR3, the 9th electric capacity C9, the 4th audion
Q4, the 29th resistance R29, the 28th resistance R28；
Described 8th electric capacity C8 two end is connected in the anode and cathode of the second Zener diode ZD2, described second Zener diode ZD2's
Plus earth, its negative electrode connects one end of the 7th resistance R7, the emitter stage of the other end the first audion Q1 of described 7th resistance R7,
The base stage of described first audion Q1 connects one end of the 6th resistance R6, the other end ground connection of described 6th resistance R6, and described second
12 resistance R22 one termination the first audion Q1 base stage, its another terminate the first chip IC 1 the 18th pin；
The colelctor electrode of described first audion Q1 connects the anode of the first diode D1, and the negative electrode of affiliated first diode D1 meets 24V
Voltage, the colelctor electrode of the first audion Q1 connects one end of the first relay R L1, and the other port of the first relay R L1 connects
24V voltage, described first relay R L1 also has one end that a port meets the 9th electric capacity C9, another termination of the 9th electric capacity C9
One end of second relay R L2, the colelctor electrode of the termination first audion Q1 that the second relay R L2 is other, the second electromagnetism is opened
Closing RL2 also has a port to connect 24V voltage.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610848863.3A CN106308051A (en) | 2016-09-26 | 2016-09-26 | Single-motor three-tube office table capable of rising and falling |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610848863.3A CN106308051A (en) | 2016-09-26 | 2016-09-26 | Single-motor three-tube office table capable of rising and falling |
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| CN106308051A true CN106308051A (en) | 2017-01-11 |
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|---|---|---|---|
| CN201610848863.3A Withdrawn CN106308051A (en) | 2016-09-26 | 2016-09-26 | Single-motor three-tube office table capable of rising and falling |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN109854697A (en) * | 2019-01-24 | 2019-06-07 | 绍兴康拓传动科技有限公司 | A kind of single motor column up-down system |
| US11122890B2 (en) | 2017-10-02 | 2021-09-21 | Ole Falk Smed | System for reducing injury from pinch zones in adjustable height work surface assemblies |
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| CN109854697A (en) * | 2019-01-24 | 2019-06-07 | 绍兴康拓传动科技有限公司 | A kind of single motor column up-down system |
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Application publication date: 20170111 |