CN206342126U - A kind of single-motor double tubular type liftable desk - Google Patents

Abstract

The utility model provides a kind of single-motor double tubular type liftable desk, including：Bracket；Transmission mechanism, is installed on bracket, and the output end of transmission mechanism is connected with the gear-box on bracket respectively；Single motor control box, is installed on bracket, and is electrically connected with transmission mechanism；Elevating mechanism, including two lifting assemblies for being symmetricly set in bracket both sides, and one end of two lifting assemblies is connected on bracket；Two bottom plates, are connected to the other end of lifting assembly.The single-motor double tubular type liftable desk that the utility model is provided, drive rod rotation is driven by single motor, so as to drive the gear train synchronous rotary in the gear-box of both sides, and then realize both sides screw rod synchronous operation so that the synchronous rise and fall of both sides lifting assembly of desk.

Description

A kind of single-motor double tubular type liftable desk

Technical field

The utility model belongs to field of mechanical technique, is related to a kind of desk, and particularly a kind of single-motor double tubular type can rise Desk drops.

Background technology

Desk is a kind of very common office equipment in office now, but most desks are fixed, it is impossible to Regulation, it is impossible to adapt to the change of working environment and user of service's demand, make clerical workforce easily be produced in office process tired Feel, and office resource cannot be utilized effectively.

In summary, to solve the deficiency on existing office desk structure, it is necessary to design a kind of Height Adjustable, and lifting is put down Steady single-motor double tubular type liftable desk.

The content of the invention

The purpose of this utility model is there is above mentioned problem for existing technology, it is proposed that a kind of Height Adjustable, and Lift stable single-motor double tubular type liftable desk.

The purpose of this utility model can be realized by following technical proposal：A kind of single-motor double tubular type liftable office Table, including：

Bracket, including two groups or so be arranged side by side first crossbeam, the quantity of every group of first crossbeam is two, and two group first By the removable connection of second cross beam between crossbeam, wherein, the side of every group of first crossbeam is each provided with a supporting plate and a gear Case；

Transmission mechanism, is installed on one of which first crossbeam, and transmission mechanism output end 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 are electrically connected with transmission mechanism；

Elevating mechanism, including two lifting assemblies for being symmetricly set in bracket both sides, and one end company of two lifting assemblies It is connected on the two groups of first crossbeams in left and right；

Two bottom plates, are connected to the other end of lifting assembly；

Also include the single motor control box circuit for being used to control elevating mechanism, single motor control box circuit includes micro- place Device, circuit for alarming, power supply stabilization circuit, and execution circuit and motor-drive circuit are managed, wherein, the microprocessor sends letter Number give motor-drive circuit, the motor-drive circuit receive signal adjust motor working condition, the motor-drive circuit Feedback signal is generated according to the working condition of motor and is sent to microprocessor, the microprocessor controls to perform according to feedback signal The switch of circuit and the switch for controlling circuit for alarming, the microprocessor include the first chip IC 1, first chip IC 1 Model 15w404as, the power supply stabilization circuit include the second chip IC 2, the model of second chip IC 2 34063。

In a kind of above-mentioned single-motor double tubular type liftable desk, the lifting assembly includes：First column, one end It is detachably connected with bottom plate；Second column, one end is nested in the other end of the first column, and the other end of the second column is provided with peace Plate is filled, is removably connected to by installing plate on first crossbeam；Screw rod, is flush-mounted in the second column, one end of screw rod and gear Gear train in case is connected；Fixed cover, is flush-mounted on screw rod, and it is fixed that waist drum shape is provided with the fixed cover away from installing plate one end Position block.

In a kind of above-mentioned single-motor double tubular type liftable desk, transmission mechanism includes：Motor, is installed on lift On structure；Drive link, two ends are connected with the gear train in gear-box respectively, wherein, the middle part of drive link and the output shaft phase of motor Connect, and the outbound course of motor and the rotation direction of drive link are vertical, it is parallel with the moving direction of lifting assembly.

In a kind of above-mentioned single-motor double tubular type liftable desk, the first column includes：First fall way, one end is Blind end, is provided with the first connecting hole, and locating slot, and locating slot are provided with the middle part of blind end along each angle of blind end Position it is corresponding with the position of locating piece, along the other end circular array of the first fall way be provided with several first positioning Hole, and the edge at the end is provided with several detents；Second column includes：Second fall way, one end away from installing plate Upper circular array is provided with several the second positioning holes, and several the second connections are symmetrically arranged with one end of installing plate Hole, and the position of the second connecting hole is corresponding with the position of the 3rd connecting hole on gear-box；Several connection sheets, in a ring battle array Row are arranged at the outside of the second fall way, and are symmetrically arranged with two locating dowels, and the position of locating dowel along the side of connection sheet Position with the second positioning hole is corresponding；Fastener, is installed on the second fall way, and close to one end of installing plate, wherein, along card Circular array is provided with several positioning convex points, and the position of positioning convex point and the first positioning hole on the lateral wall of part one end Position is corresponding, and the edge of the fastener other end is provided with several locating convex blocks, and position and the positioning convex point of locating convex block Position it is corresponding.

In a kind of above-mentioned single-motor double tubular type liftable desk, the side trimming of positioning convex point, the first fall way Section with the second fall way is square or circular or polygon.

In a kind of above-mentioned single-motor double tubular type liftable desk, the middle part of bottom plate is set in hollow form, along bottom plate The length direction of bottom surface offer several square slotted eyes in a word, wherein, the square slotted eye institute in the middle part of bottom plate bottom surface Correspondence is provided with the 4th connecting hole, and position and the first connecting hole of the 4th connecting hole on each angle in backplate surface region Position it is corresponding；The two ends of bottom plate are symmetrically each provided with a lower margin, and lower margin is detachably connected with bottom plate.

In a kind of above-mentioned single-motor double tubular type liftable desk, the circuit for alarming includes：8th resistance R8, police Report device BUZ, the 7th diode D7, the second triode Q2, and the 9th resistance R9, the 8th resistance R8 one end connection power supply electricity VCC is pressed, its other end one end respectively with siren BUZ, the 7th diode D7 negative electrode are connected, the siren BUZ other end With the 7th diode D7 anode and together be connected with the second triode Q2 emitter stage, the current collection of the second triode Q2 Pole connects ground wire, and the second triode Q2 base stage connects the 9th resistance R9 one end formation circuit for alarming, and the resistance R9's is another One end connects the 13rd pin of the first chip IC 1.

In a kind of above-mentioned single-motor double tubular type liftable desk, the power supply stabilization circuit includes：First patches Part CN1, the first piezo-resistance ZNR1, the first electric capacity C1, the first electrochemical capacitor E1, the second diode D2, first resistor R1, second Resistance R2, the second electric capacity C2, the 3rd electric capacity C3, the first voltage-regulator diode ZD1, the second electrochemical capacitor E2, the 4th electric capacity C4, second Chip IC 2,3rd resistor 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 triode Q7, the 6th triode 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；

The first electrochemical capacitor E1 is in parallel with the first piezo-resistance ZNR1, the first electric capacity C1, first electrochemical capacitor E1 negative pole ground wire, its positive pole meets the first connector CN1, the second diode D2 and connects the first electrochemical capacitor E1 positive pole, Second diode D2 negative electrode connects the second electrochemical capacitor E2 positive pole, and the negative pole ground wire of the second electrochemical capacitor E2 is described 4th electric capacity C4 two ends are connected on the second electrochemical capacitor E2 both positive and negative polarity, the first voltage-regulator diode ZD1 and second resistance respectively R2, the 4th electric capacity C4 are in parallel, the first voltage-regulator diode ZD1 negative electrode connection first resistor R1, and the first resistor R1's is another The second electrochemical capacitor E2 of end connection positive pole, the anode of the first voltage-regulator diode ZD1 connects the second electric capacity C2 one end, described Second electric capacity C2 the second electrochemical capacitor of another termination E2 positive pole；

5th pin of second chip IC 2 connects the 4th resistance R4 one end, the other end of the 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 the 5th electric capacity C5 one end, and described the The E3 negative poles of five electric capacity C5 the 3rd electrochemical capacitors of another termination, the negative pole ground connection of the 3rd electrochemical capacitor E3, the 3rd electrolysis electricity The positive pole for holding E3 connects the first inductance L1 one end, the second pin of the second chip IC of another termination 2 of the first inductance L1, institute The negative electrode for stating the 3rd diode D3 connects the second pin of the second chip IC 2, and the 3rd diode D3 anode connects the 3rd electrochemical capacitor E3 negative pole, the two-stage of the 6th electric capacity C6 is connected on the both positive and negative polarity of the 3rd electrochemical capacitor, the one of the 3rd resistor R3 respectively The 3rd electrochemical capacitor E3 positive pole is terminated, the 5th pin of its second chip IC 2 of another termination；

Second connector is provided with 3 interfaces, the second interface ground connection of second connector, and its 3rd interface connects the 16th pin of one chip IC 1, the second connector first interface connects the 4th diode D4 negative electrode, the 4th diode D4 Anode connect the 3rd electrochemical capacitor E3 positive pole, No. 1 of a second plug connector CN2 of termination of the 21st resistance R21 connects Mouthful, anode of its first LED 1 of another termination, the minus earth of first LED 1, described the The anode of 20 resistance R20 first LED 1 of termination, the 17th of its first chip IC 1 of another termination draws Pin；

The anode of the 5th diode D5 connects the 3rd electrochemical capacitor E3 positive pole, and its negative electrode connects the 18th resistance R18's One end, the triode Q6 of another termination the 6th of the 18th resistance R18 emitter stage, the colelctor electrode of the 6th triode Q6 Ground connection, its base stage meets the 19th resistance R19, and the emitter stage of the 7th triode Q7 connects the 5th diode D5 negative electrode, its base Pole connects the 6th triode Q6 emitter stage, the 7th triode Q7 electrochemical capacitor E5 of colelctor electrode the 5th positive pole, the 5th electricity Electric capacity E5 negative pole ground connection is solved, the positive pole of the 5th electrochemical capacitor E5 meets the first transistor TR1, the first transistor TR1 Another termination supply voltage VDD, the 14th electric capacity C14 connections are connected on the 5th electrochemical capacitor E5 both positive and negative polarity respectively, described 6th diode D6 anode connects the 3rd electrochemical capacitor E3 positive poles, and its negative electrode connects the 4th electrochemical capacitor E4 positive pole, the 4th electrolysis Electric capacity E4 negative poles are grounded, and the 7th electric capacity C7 two ends are connected on the 4th electrochemical capacitor E4 both positive and negative polarity respectively, the 4th electrolysis electricity The positive pole of appearance meets supply voltage VCC.

In a kind of above-mentioned single-motor double tubular type liftable desk, the execution circuit includes：11st electric capacity C11, the 23rd resistance R23, the 3rd Transient Suppression Diode T3, first switch SW1, the second Transient Suppression Diode T2, 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 triode Q5, the 30th resistance R30, the 31st resistance R31；

The base stage of the 5th triode Q5 connects the 30th resistance R30 one end, the other end of the 30th resistance R30 Connect the 16th pin of the first chip IC 1, one end ground connection of the 31st resistance R31, its 5th triode of another termination Q5 base stage, the grounded collector of the 5th triode Q5；

First connection branch road：The emitter stage of the 5th triode Q5 connects the 3rd Transient Suppression Diode T3 one end, institute State the 3rd Transient Suppression Diode T3 and connect the 23rd resistance R23 one end, the 13rd electric capacity C13 one end, the described 20th Three resistance R23 another termination supply voltage VCC, the 13rd electric capacity C13 other end ground connection；The first switch SW1 One end ground connection, its another termination the 3rd Transient Suppression Diode T3, the of the first connection branch road first chip IC 1 of connection Seven pins；

Second connection branch road：The emitter stage of the 5th triode Q5 connects the first Transient Suppression Diode T1 one end, institute State the first Transient Suppression Diode T1 resistance R25 of another termination the 25th one end, the 13rd electric capacity C13 one end, institute State the 25th resistance R25 another termination supply voltage VCC, the other end ground connection of the 13rd electric capacity C13, described second SW2 one end ground connection is switched, its first Transient Suppression Diode of another termination, the second connection branch road connects the first chip IC 1 The 5th pin；

3rd connection branch road：The emitter stage of the 5th triode Q5 connects the second Transient Suppression Diode T2 one end, institute State the second Transient Suppression Diode T2 resistance R24 of another termination the 24th one end, the 12nd electric capacity C12 one end, institute Another termination supply voltage VCC of the 24th resistance is stated, the other end of the 12nd electric capacity C12 is grounded, and the described 3rd opens One end ground connection of pass, its 3rd Transient Suppression Diode of another termination, the 3rd connection branch road connects the of the first chip IC 1 Six pins.

In a kind of above-mentioned single-motor double tubular type liftable desk, the motor-drive circuit includes：8th electric capacity C8, the second voltage-regulator diode D2, the 7th resistance R7, the first triode Q1, the first diode D1, the 22nd resistance R22, the 6th Resistance R6, the first relay RL1, the second relay RL2, the 8th diode D8, the 3rd triode Q3, the 27th resistance R27, 26th resistance R26, the 3rd piezo-resistance ZNR3, the 9th electric capacity C9, the 4th triode Q4, the 29th resistance R29, second 18 resistance R28；

The ends of 8th electric capacity C8 two are connected in the second voltage-regulator diode ZD2 anode and cathode, second voltage-regulator diode ZD2 plus earth, its negative electrode connects the 7th resistance R7 one end, the first triode of other end Q1 of the 7th resistance R7 hair Emitter-base bandgap grading, the base stage of the first triode Q1 connects the 6th resistance R6 one end, and the other end ground connection of the 6th resistance R6 is described A 22nd resistance R22 first triode Q1 of termination base stage, its another termination pin of the first chip IC 1 the 18th；

The colelctor electrode of the first triode Q1 connects the first diode D1 anode, and affiliated first diode D1 negative electrode connects 24V voltages, the first triode Q1 colelctor electrode connects the first relay RL1 one end, a port other the first relay RL1 Connect 24V voltages, the first relay RL1 also has a port to connect the 9th electric capacity C9 one end, the 9th electric capacity C9 other end Connect the second relay RL2 one end, the first triode Q1 of termination of the second relay RL2 in addition colelctor electrode, the second electromagnetism Switch RL2 also has a port to connect 24V voltages.

Compared with prior art, the single-motor double tubular type liftable desk that the utility model is provided, is driven by single motor Dynamic drive rod rotation, so as to drive the gear train synchronous rotary in the gear-box of both sides, and then realizes both sides screw rod synchronous operation, makes Obtain the synchronous rise and fall of both sides lifting assembly of desk.

Brief description of the drawings

Fig. 1 is a kind of structural representation of single-motor double tubular type liftable desk of the utility model.

Fig. 2 is the structural representation at another visual angle of desk shown in Fig. 1.

Fig. 3 is the structural representation of the preferred embodiment middle gear case of the utility model one and lifting assembly.

Fig. 4 is the structural representation at gear-box shown in Fig. 3 and another visual angle of lifting assembly.

Fig. 5 is the explosive view of the preferred embodiment middle gear case of the utility model one and lifting assembly.

Fig. 6 is a kind of embodiment block diagram of control circuit of the present utility model；

Fig. 7 is the utility model the first chip diagram；

Fig. 8 is the utility model circuit for alarming diagram；

Fig. 9 is the utility model power supply stabilization circuit diagram；

Figure 10 is the utility model execution circuit diagram；

Figure 11 is the utility model motor-drive circuit diagram.

In figure, 100, bracket；110th, first crossbeam；120th, second cross beam；130th, supporting plate；140th, gear-box；200th, it is driven Mechanism；210th, motor；220th, drive link；300th, Double Motor Control box；310th, microprocessor；320th, circuit for alarming；330th, perform Circuit；340th, motor-drive circuit；400th, elevating mechanism；410th, lifting assembly；411st, the first column；411a, the first fall way； 411b, the first connecting hole；411c, locating slot；411d, the first positioning hole；411e, detent；412nd, the second column；412a、 Second fall way；412b, the second positioning hole；412c, the second connecting hole；412d, connection sheet；412e, locating dowel；412f, fastener； 412g, positioning convex point；412h, locating convex block；413rd, installing plate；414th, fixed cover；414a, locating piece；500th, bottom plate；510th, side Shape slotted eye；520th, the 4th connecting hole；530th, lower margin.

Embodiment

The following is specific embodiment of the utility model and with reference to accompanying drawing, further is made to the technical solution of the utility model Description, but the utility model is not limited to these embodiments.

As depicted in figs. 1 and 2, a kind of single-motor double tubular type liftable desk that the utility model is provided, including：Bracket 100, including two groups or so are arranged side by side first crossbeam 110, and the quantity of every group of first crossbeam 110 is two, and two group first horizontal By the removable connection of second cross beam 120 between beam 110, wherein, the side of every group of first crossbeam 110 is each provided with a supporting plate 130 and a gear-box 140；Transmission mechanism 200, is installed on one of which first crossbeam 110, and the output of transmission mechanism 200 End is connected with the gear-box 140 of the left and right sides respectively, drives the middle gear group of both sides gear-box 140 synchronous by transmission mechanism 200 Operation；Single motor control box 300, two ends are respectively arranged on two second cross beams 120, and electrically connected with transmission mechanism 200；Rise Descending mechanism 400, including two lifting assemblies 410 for being symmetricly set in the both sides of bracket 100, and one end of two lifting assemblies 410 It is connected on the two groups of first crossbeams 110 in left and right；Two bottom plates 500, are connected to the other end of lifting assembly 410.

Preferably, as depicted in figs. 1 and 2, transmission mechanism 200 includes：Motor 210, is installed on elevating mechanism 400；Pass Lever 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 of motor 210 Axle is connected, and drives drive link 220 to rotate by motor 210, so as to drive gear train to rotate, and then realizes lifting assembly 410 Move up and down.

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 and Fig. 5, lifting assembly 410 includes：First column 411, one end can with bottom plate 500 Dismounting connection；Second column 412, one end is nested in the other end of the first column 411, and the other end of the second column 412 is provided with Installing plate 413, is removably connected on first crossbeam 110 by installing plate 413；Screw rod, is flush-mounted in the second column 412, spiral shell One end of bar is connected with the gear train in gear-box 140, drives drive link 220 to rotate by motor, so as to drive two side gears Gear train in case 140 is rotated, and then drives screw rod rotation, realizes the relative shifting between the first column 411 and the second column 412 It is dynamic；Fixed cover 414, is flush-mounted on screw rod, and is provided with waist drum shape locating piece on the fixed cover 414 away from the one end of installing plate 413 414a。

Preferably, as shown in Fig. 3, Fig. 4 and Fig. 5, the first column 411 includes：First fall way 411a, one end is closing End, the first connecting hole 411b is provided with along each angle of blind end, and locating slot 411c is provided with the middle part of blind end, and fixed Position groove 411c position is corresponding with locating piece 414a position, realizes removable between the first fall way 411a and bottom plate 500 Connection is unloaded, the first fall way 411a other end circular array is provided with several first positioning holes 411d, and the end Edge is provided with several detents 411e；Second column 412 includes：Second fall way 412a, one away from installing plate 413 Circular array is provided with several second positioning holes 412b on end, is symmetrically arranged with one end of installing plate 413 some Individual second connecting hole 412c, and the second connecting hole 412c position and the position phase of the 3rd connecting hole 141a on gear-box 140 Correspondence, realizes being detachably connected between the second fall way 412a and gear-box 140；Several connection sheets 412d, in a ring battle array Row are arranged at the second fall way 412a outside, and are symmetrically arranged with two locating dowel 412e along connection sheet 412d side, and Locating dowel 412e position is corresponding with the second positioning hole 412b position；Fastener 412f, is installed on the second fall way 412a, And close to one end of installing plate 413, wherein, circular array is provided with several positioning along along the lateral wall of fastener 412f one end Salient point 412g, and positioning convex point 412g position is corresponding with the first positioning hole 411d position, along the fastener 412f other ends Edge is provided with several locating convex blocks 412h, and locating convex block 412h position is corresponding with positioning convex point 412g position, By detent 411e and locating convex block 412h, and positioning convex point 412g and the first positioning hole 411d cooperation, is realized Spacing movement between one fall way 411a and the second fall way 412a.

Preferably, as shown in Fig. 3, Fig. 4 and Fig. 5, the section of positioning convex point 412g side trimming, i.e. positioning convex point 412g In quadrangle so that the sliding between the first fall way 411a and the second fall way 412a coordinates more smoothly.

Preferably, as shown in Fig. 3, Fig. 4 and Fig. 5, the first fall way 411a and the second fall way 412a section can be side Shape, circle and polygon etc..

Preferably, as shown in Fig. 3, Fig. 4 and Fig. 5, the middle part of bottom plate 500 is set in hollow form, along the bottom surface of bottom plate 500 Length direction offers several square slotted eyes 510 in a word, wherein, the institute of square slotted eye 510 in the middle part of the bottom surface of bottom plate 500 Correspondence is provided with the 4th connecting hole 520 on each angle of the surface region of bottom plate 500, and the position of the 4th connecting hole 520 with First connecting hole 411b position is corresponding, realizes being detachably connected between the first fall way 411a and bottom plate 500；Bottom plate 500 two ends are symmetrically each provided with a lower margin 530, and lower margin 530 is detachably connected with bottom plate 500, lay and handle official business to leveling Ground where table.

Preferably, the lifting unit of lifting assembly 410 can be arranged at the side leaned on into bottom plate 500.

The operation principle for the single-motor double tubular type liftable desk that the utility model is provided：Pass through single motor control first Box 300 opens the motor 210 being installed on second cross beam 120, and causes the tooth in both sides gear-box 140 by drive link 220 Wheel group synchronous axial system, so that the screw rod synchronous rotary in both sides lifting assembly 410 is driven, when motor 210 is rotated forward, lifting The second column 412 or rising in component 410 so that the relative displacement between bracket 100 and bottom plate 500 becomes big；When motor 210 During reversion, the second column 412 in lifting assembly 410 so that the relative displacement between bracket 100 and bottom plate 500 diminishes, until Locating convex block 412h is nested with detent 411e phase clampings, positioning convex point 412g with the first positioning hole 411d, stops second The motion of column 412.

The single-motor double tubular type liftable desk that the utility model is provided, 220 turns of drive link is driven by single motor 210 It is dynamic, so as to 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 synchronous rise and fall of both sides lifting assembly 410 of table.

As shown in Fig. 6-Figure 11, single circuit of motor control box 300 includes：Microprocessor 310, circuit for alarming 320, power supply are steady Volt circuit, and execution circuit 330 and motor-drive circuit 340, wherein, the microprocessor 310 sends a signal to motor drive Dynamic circuit 340, the motor-drive circuit 340 receives the working condition that signal adjusts motor, the motor-drive circuit 340 Microprocessor 310 is sent to according to the working condition generation feedback signal of motor, the microprocessor 310 is according to feedback signal control The switch of execution circuit 330 and the switch for controlling circuit for alarming 320.

The microprocessor 310 includes the first chip IC 1, the model 15w404as of first chip IC 1, the electricity Source mu balanced circuit includes the second chip IC 2, the model 34063 of second chip IC 2.

The circuit for alarming 320 includes：8th resistance R8, siren BUZ, the 7th diode D7, the second triode Q2, with And the 9th resistance R9, described 8th resistance R8 one end connects supply voltage VCC, its other end one end respectively with siren BUZ, 7th diode D7 negative electrode is connected, the siren BUZ other end and the 7th diode D7 anode simultaneously together with the two or three Level pipe Q2 emitter stage is connected, the colelctor electrode connection ground wire of the second triode Q2, the second triode Q2 base stage connection the Nine resistance R9 one end forms circuit for alarming 320, and the other end of the resistance R9 connects the 13rd pin of the first chip IC 1.

The power supply stabilization circuit includes：First connector CN1, the first piezo-resistance ZNR1, the first electric capacity C1, the first electricity Solve electric capacity E1, the second diode Q2, first resistor R1, 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 2,3rd resistor 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, the 20th resistance R20, the 5th diode D5, the 18th resistance R18, the 7th triode Q7, the 6th triode 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；

The first electrochemical capacitor E1 is in parallel with the first piezo-resistance ZNR1, the first electric capacity C1, first electrochemical capacitor E1 negative pole ground wire, its positive pole meets the first connector CN1, the second diode D2 and connects the first electrochemical capacitor E1 positive pole, Second diode D2 negative electrode connects the second electrochemical capacitor E2 positive pole, and the negative pole ground wire of the second electrochemical capacitor E2 is described 4th electric capacity C4 two ends are connected on the second electrochemical capacitor E2 both positive and negative polarity, the first voltage-regulator diode ZD1 and second resistance respectively R2, the 4th electric capacity C4 are in parallel, the first voltage-regulator diode ZD1 negative electrode connection first resistor R1, and the first resistor R1's is another The second electrochemical capacitor E2 of end connection positive pole, the anode of the first voltage-regulator diode ZD1 connects the second electric capacity C2 one end, described Second electric capacity C2 the second electrochemical capacitor of another termination E2 positive pole；

5th pin of second chip IC 2 connects the 4th resistance R4 one end, the other end of the 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 the 5th electric capacity C5 one end, and described the The E3 negative poles of five electric capacity C5 the 3rd electrochemical capacitors of another termination, the negative pole ground connection of the 3rd electrochemical capacitor E3, the 3rd electrolysis electricity The positive pole for holding E3 connects the first inductance L1 one end, the second pin of the second chip IC of another termination 2 of the first inductance L1, institute The negative electrode for stating the 3rd diode D3 connects the second pin of the second chip IC 2, and the 3rd diode D3 anode connects the 3rd electrochemical capacitor E3 negative pole, the two-stage of the 6th electric capacity C6 is connected on the both positive and negative polarity of the 3rd electrochemical capacitor, the one of the 3rd resistor R3 respectively The 3rd electrochemical capacitor E3 positive pole is terminated, the 5th pin of its second chip IC 2 of another termination；

Second connector is provided with 3 interfaces, the second interface ground connection of second connector, and its 3rd interface connects the 16th pin of one chip IC 1, the second connector first interface connects the 4th diode D4 negative electrode, the 4th diode D4 Anode connect the 3rd electrochemical capacitor E3 positive pole, No. 1 of a second plug connector CN2 of termination of the 21st resistance R21 connects Mouthful, anode of its first LED 1 of another termination, the minus earth of first LED 1, described the The anode of 20 resistance R20 first LED 1 of termination, the 17th of its first chip IC 1 of another termination draws Pin；

The anode of the 5th diode D5 connects the 3rd electrochemical capacitor E3 positive pole, and its negative electrode connects the 18th resistance R18's One end, the triode Q6 of another termination the 6th of the 18th resistance R18 emitter stage, the colelctor electrode of the 6th triode Q6 Ground connection, its base stage meets the 19th resistance R19, and the emitter stage of the 7th triode Q7 connects the 5th diode D5 negative electrode, its base Pole connects the 6th triode D6 emitter stage, the 7th triode Q7 electrochemical capacitor E5 of colelctor electrode the 5th positive pole, the 5th electricity Electric capacity E5 negative pole ground connection is solved, the positive pole of the 5th electrochemical capacitor E5 meets the first transistor TR1, the first transistor TR1 Another termination supply voltage VDD, the 14th electric capacity C14 connections are connected on the 5th electrochemical capacitor E5 both positive and negative polarity respectively, described 6th diode D6 anode connects the 3rd electrochemical capacitor E3 positive poles, and its negative electrode connects the 4th electrochemical capacitor E4 positive pole, the 4th electrolysis Electric capacity E4 negative poles are grounded, and the 7th electric capacity C7 two ends are connected on the 4th electrochemical capacitor E4 both positive and negative polarity respectively, the 4th electrolysis electricity The positive pole of appearance meets supply voltage VCC.

The execution circuit 330 includes：11st electric capacity C11, the 23rd resistance R23, the 3rd Transient Suppression Diode T3, 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 triode Q5, 30th resistance R30, the 31st resistance R31；

The base stage of the 5th triode Q5 connects the 30th resistance R30 one end, the other end of the 30th resistance R30 Connect the 16th pin of the first chip IC 1, one end ground connection of the 31st resistance R31, its 5th triode of another termination Q5 base stage, the grounded collector of the 5th triode Q5；

First connection branch road：The emitter stage of the 5th triode Q5 connects the 3rd Transient Suppression Diode T3 one end, institute State the 3rd Transient Suppression Diode T3 and connect the 23rd resistance R23 one end, the 13rd electric capacity C13 one end, the described 20th Three resistance R23 another termination supply voltage VCC, the 13rd electric capacity C13 other end ground connection；The first switch SW1 One end ground connection, its another termination the 3rd Transient Suppression Diode T3, the of the first connection branch road first chip IC 1 of connection Seven pins；

Second connection branch road：The emitter stage of the 5th triode Q5 connects the first Transient Suppression Diode T1 one end, institute State the first Transient Suppression Diode T1 resistance R25 of another termination the 25th one end, the 13rd electric capacity C13 one end, institute State the 25th resistance R25 another termination supply voltage VCC, the other end ground connection of the 13rd electric capacity C13, described second SW2 one end ground connection is switched, its first Transient Suppression Diode of another termination, the second connection branch road connects the first chip IC 1 The 5th pin；

3rd connection branch road：The emitter stage of the 5th triode Q5 connects the second Transient Suppression Diode T2 one end, institute State the second Transient Suppression Diode T2 resistance R24 of another termination the 24th one end, the 12nd electric capacity C12 one end, institute Another termination supply voltage VCC of the 24th resistance is stated, the other end of the 12nd electric capacity C12 is grounded, and the described 3rd opens One end ground connection of pass, its 3rd Transient Suppression Diode of another termination, the 3rd connection branch road connects the of the first chip IC 1 Six pins.

The motor-drive circuit 340 includes：8th electric capacity C8, the second voltage-regulator 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 RL1, the second relay RL2, Eight diode D8, the 3rd triode Q3, the 27th resistance R27, the 26th resistance R26, the 3rd piezo-resistance ZNR3, the 9th Electric capacity C9, the 4th triode Q4, the 29th resistance R29, the 28th resistance R28；

The ends of 8th electric capacity C8 two are connected in the second voltage-regulator diode ZD2 anode and cathode, second voltage-regulator diode ZD2 plus earth, its negative electrode connects the 7th resistance R7 one end, the first triode of other end Q1 of the 7th resistance R7 hair Emitter-base bandgap grading, the base stage of the first triode Q1 connects the 6th resistance R6 one end, and the other end ground connection of the 6th resistance R6 is described A 22nd resistance R22 first triode Q1 of termination base stage, its another termination pin of the first chip IC 1 the 18th；

The colelctor electrode of the first triode Q1 connects the first diode D1 anode, and affiliated first diode D1 negative electrode connects 24V voltages, the first triode Q1 colelctor electrode connects the first relay RL1 one end, a port other the first relay RL1 Connect 24V voltages, the first relay RL1 also has a port to connect the 9th electric capacity C9 one end, the 9th electric capacity C9 other end Connect the second relay RL2 one end, the first triode Q1 of termination of the second relay RL2 in addition colelctor electrode, the second electromagnetism Switch RL2 also has a port to connect 24V voltages.

Specific embodiment described herein is only to the utility model spirit explanation for example.The utility model institute Category those skilled in the art can make various modifications or supplement or using similar to described specific embodiment Mode substitute, but without departing from spirit of the present utility model or surmount scope defined in appended claims.

Claims (9)

1. a kind of single-motor double tubular type liftable desk, it is characterised in that including：

Bracket, including two groups or so be arranged side by side first crossbeam, the quantity of first crossbeam described in every group is two, and described in two groups By the removable connection of second cross beam between first crossbeam, wherein, the side of first crossbeam is each provided with a supporting plate described in every group With a gear-box；

Transmission mechanism, is installed on described in one of which on first crossbeam, and the transmission mechanism output end respectively with left and right two The gear-box of side is connected；

Single motor control box, two ends are respectively arranged on two second cross beams, and electrically connected with the transmission mechanism；

Elevating mechanism, including two lifting assemblies for being symmetricly set in bracket both sides, and one end company of two lifting assemblies It is connected to described in two groups of left and right on first crossbeam；

Two bottom plates, are connected to the other end of the lifting assembly；

Also include the single motor control box circuit for being used to control the elevating mechanism, single motor control box circuit includes micro- place Device, circuit for alarming, power supply stabilization circuit, and execution circuit and motor-drive circuit are managed, wherein, the microprocessor sends letter Number give motor-drive circuit, the motor-drive circuit receive signal adjust motor working condition, the motor-drive circuit Feedback signal is generated according to the working condition of motor and is sent to microprocessor, the microprocessor controls to perform according to feedback signal The switch of circuit and the switch for controlling circuit for alarming, the microprocessor include the first chip IC 1, first chip IC 1 Model 15w404as, the power supply stabilization circuit include the second chip IC 2, the model of second chip IC 2 34063；

The transmission mechanism includes：

Motor, is installed on the elevating mechanism；

Drive link, two ends are connected with the gear train in the gear-box respectively；

Wherein, the middle part of the drive link is connected with the output shaft of the motor, and the outbound course of the motor is passed with described The rotation direction of lever is vertical, parallel with the moving direction of the lifting assembly.

2. a kind of single-motor double tubular type liftable desk according to claim 1, it is characterised in that the lifting assembly Including：

First column, one end is detachably connected with the bottom plate；

Second column, one end is nested in the other end of first column, and the other end of second column is provided with installing plate, It is removably connected to by the installing plate on the first crossbeam；

Screw rod, is flush-mounted in second column, one end of the screw rod is connected with the gear train in the gear-box；

Fixed cover, is flush-mounted on the screw rod, and it is fixed that waist drum shape is provided with the fixed cover away from described installing plate one end Position block.

3. a kind of single-motor double tubular type liftable desk according to claim 2, it is characterised in that first column Including：

First fall way, one end is blind end, and each angle of blind end is provided with the first connecting hole, and the middle part of blind end Locating slot is provided with, and the position of the locating slot is corresponding with the position of the locating piece, along the another of first fall way One end circular array is provided with several the first positioning holes, and the edge at the end is provided with several detents；

Second column includes：

Circular array is provided with several the second positioning holes on second fall way, one end away from the installing plate, close to institute State and several the second connecting holes are symmetrically arranged with one end of installing plate, and position and the gear-box of second connecting hole On the 3rd connecting hole position it is corresponding；

Several connection sheets, circular array is arranged at the outside of second fall way, and along the side pair of the connection sheet Title is provided with two locating dowels, and the position of the locating dowel is corresponding with the position of second positioning hole；

Fastener, is installed on second fall way, and close to one end of the installing plate, wherein, along described fastener one end Circular array is provided with several positioning convex points, and the position of the positioning convex point and first positioning hole on lateral wall Position is corresponding, and the edge of the fastener other end is provided with several locating convex blocks, and the position of the locating convex block with The position of the positioning convex point is corresponding.

4. a kind of single-motor double tubular type liftable desk according to claim 3, it is characterised in that the positioning convex point Side trimming, the section of first fall way and second fall way is square or circle.

5. a kind of single-motor double tubular type liftable desk according to claim 3, it is characterised in that in the bottom plate Portion is set in hollow form, and several square slotted eyes are offered in a word along the length direction of the bottom surface of the bottom plate, wherein, it is located at Corresponding to the square slotted eye in the middle part of the bottom plate bottom surface the 4th connection is provided with each angle in backplate surface region Hole, and the position of the 4th connecting hole is corresponding with the position of the first connecting hole；The two ends of the bottom plate are symmetrically each provided with One lower margin, and lower margin is detachably connected with bottom plate.

6. a kind of single-motor double tubular type liftable desk according to claim 1, it is characterised in that the circuit for alarming Including：8th resistance R8, siren BUZ, the 7th diode D7, the second triode Q2, and the 9th resistance R9, the 8th electricity Hinder R8 one end connection supply voltage VCC, its other end one end respectively with siren BUZ, the 7th diode D7 negative electrode are connected, The siren BUZ other end and the 7th diode D7 anode and together be connected with the second triode Q2 emitter stage, it is described Second triode Q2 colelctor electrode connection ground wire, the second triode Q2 base stage connects the 9th resistance R9 one end formation alarm electricity Road, the other end of the resistance R9 connects the 13rd pin of the first chip IC 1.

7. a kind of single-motor double tubular type liftable desk according to claim 1, it is characterised in that the power supply voltage stabilizing Circuit includes：First connector CN1, the first piezo-resistance ZNR1, the first electric capacity C1, the first electrochemical capacitor E1, the second diode D2, first resistor R1, second resistance R2, the second electric capacity C2, the 3rd electric capacity C3, the first voltage-regulator diode ZD1, the second electrochemical capacitor E2, the 4th electric capacity C4, the second chip IC 2,3rd resistor 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 1, the 20th resistance R20, the 5th diode D5, the 6th diode D6, the 18th resistance R18, the 7th Triode Q7, the 6th triode 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；

The first electrochemical capacitor E1 is in parallel with the first piezo-resistance ZNR1, the first electric capacity C1, the first electrochemical capacitor E1's Negative pole ground wire, its positive pole meets the first connector CN1, the second diode D2 and connects the first electrochemical capacitor E1 positive pole, second Diode D2 negative electrode connects the second electrochemical capacitor E2 positive pole, the negative pole ground wire of the second electrochemical capacitor E2, the described 4th Electric capacity C4 two ends are connected on the second electrochemical capacitor E2 both positive and negative polarity respectively, the first voltage-regulator diode ZD1 and second resistance R2, the Four electric capacity C4 are in parallel, the first voltage-regulator diode ZD1 negative electrode connection first resistor R1, the first resistor R1 other end connection Second electrochemical capacitor E2 positive pole, the anode of the first voltage-regulator diode ZD1 connects the second electric capacity C2 one end, second electricity Hold C2 the second electrochemical capacitor of another termination E2 positive pole；

5th pin of second chip IC 2 connects the 4th resistance R4 one end, and the other end of the 4th resistance R4 is grounded, The 4th pin ground connection of second chip IC 2, the 3rd pin of the second chip IC 2 connects the 5th electric capacity C5 one end, the 5th electricity Hold the E3 negative poles of C5 the 3rd electrochemical capacitors of another termination, the negative pole ground connection of the 3rd electrochemical capacitor E3, the 3rd electrochemical capacitor E3 Positive pole connect the first inductance L1 one end, the second pin of the second chip IC of another termination 2 of the first inductance L1, described Three diode D3 negative electrode connects the second pin of the second chip IC 2, and the 3rd diode D3 anode connects the 3rd electrochemical capacitor E3's Negative pole, the two-stage of the 6th electric capacity C6 is connected on the both positive and negative polarity of the 3rd electrochemical capacitor, a termination of the 3rd resistor R3 respectively 3rd electrochemical capacitor E3 positive pole, the 5th pin of its second chip IC 2 of another termination；

Second connector connects the first core provided with 3 interfaces, the second interface ground connection of second connector, its 3rd interface Piece IC1 the 16th pin, the second connector first interface connects the 4th diode D4 negative electrode, the sun of the 4th diode D4 Pole connects the 3rd electrochemical capacitor E3 positive pole, and the one of the 21st resistance R21 terminates the second plug connector CN2 No. 1 interface, its The anode of the first LED 1 of another termination, the minus earth of first LED 1, the described 20th The anode of resistance R20 first LED 1 of termination, the 17th pin of its first chip IC 1 of another termination；

The anode of the 5th diode D5 connects the 3rd electrochemical capacitor E3 positive pole, and its negative electrode connects the 18th resistance R18 one end, The triode Q6 of another termination the 6th of 18th resistance R18 emitter stage, the grounded collector of the 6th triode Q6, Its base stage meets the 19th resistance R19, and the emitter stage of the 7th triode Q7 connects the 5th diode D5 negative electrode, and its base stage connects Six triode Q6 emitter stage, the 7th triode Q7 electrochemical capacitor E5 of colelctor electrode the 5th positive pole, the 5th electrochemical capacitor E5 negative pole ground connection, the positive pole of the 5th electrochemical capacitor E5 meets the first transistor TR1, and the first transistor TR1's is another Termination power voltage VDD, the 14th electric capacity C14 connections are connected on the 5th electrochemical capacitor E5 both positive and negative polarity respectively, and the described 6th 2 Pole pipe D6 anode connects the 3rd electrochemical capacitor E3 positive poles, and its negative electrode connects the 4th electrochemical capacitor E4 positive pole, the 4th electrochemical capacitor E4 Negative pole is grounded, and the 7th electric capacity C7 two ends are connected on the 4th electrochemical capacitor E4 both positive and negative polarity respectively, and the 4th electrochemical capacitor is just Pole meets supply voltage VCC.

8. a kind of single-motor double tubular type liftable desk according to claim 1, it is characterised in that the execution circuit Including：11st electric capacity C11, the 23rd resistance R23, the 3rd Transient Suppression Diode T3, first switch SW1, the second transient state Suppress 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 triode Q5, the 30th resistance R30, the 31st electricity Hinder R31；

The base stage of the 5th triode Q5 connects the 30th resistance R30 one end, another termination of the 30th resistance R30 16th pin of one chip IC 1, one end ground connection of the 31st resistance R31, the 5th triode Q5's of its another termination Base stage, the grounded collector of the 5th triode Q5；

First connection branch road：The emitter stage of the 5th triode Q5 connects the 3rd Transient Suppression Diode T3 one end, described Three Transient Suppression Diode T3 connect the 23rd resistance R23 one end, the 13rd electric capacity C13 one end, the 23rd electricity Hinder R23 another termination supply voltage VCC, the other end ground connection of the 13rd electric capacity C13；The one of the first switch SW1 End ground connection, the 3rd Transient Suppression Diode T3 of its another termination, the first connection branch road connects the 7th of the first chip IC 1 and drawn Pin；

Second connection branch road：The emitter stage of the 5th triode Q5 connects the first Transient Suppression Diode T1 one end, described The one Transient Suppression Diode T1 resistance R25 of another termination the 25th one end, the 13rd electric capacity C13 one end, described 25 resistance R25 another termination supply voltage VCC, the 13rd electric capacity C13 other end ground connection, the second switch SW2 one end is grounded, and its first Transient Suppression Diode of another termination, the second connection branch road connects the of the first chip IC 1 Five pins；

3rd connection branch road：The emitter stage of the 5th triode Q5 connects the second Transient Suppression Diode T2 one end, described The two Transient Suppression Diode T2 resistance R24 of another termination the 24th one end, the 12nd electric capacity C12 one end, described Another termination supply voltage VCC of 24 resistance, the 12nd electric capacity C12 other end ground connection, the 3rd switch One end is grounded, and its 3rd Transient Suppression Diode of another termination, the 3rd connection branch road connects the 6th of the first chip IC 1 and drawn Pin.

9. a kind of single-motor double tubular type liftable desk according to claim 1, it is characterised in that the motor driving Circuit includes：8th electric capacity C8, the second voltage-regulator diode D2, the 7th resistance R7, the first triode Q1, the first diode D1, 22 resistance R22, the 6th resistance R6, the first relay RL1, the second relay RL2, the 8th diode D8, the 3rd triode Q3, the 27th resistance R27, the 26th resistance R26, the 3rd piezo-resistance ZNR3, the 9th electric capacity C9, the 4th triode Q4, 29th resistance R29, the 28th resistance R28；

The ends of 8th electric capacity C8 two are connected in the second voltage-regulator diode ZD2 anode and cathode, the second voltage-regulator diode ZD2's Plus earth, its negative electrode connects the 7th resistance R7 one end, the first triode of other end Q1 of the 7th resistance R7 emitter stage, The base stage of the first triode Q1 connects the 6th resistance R6 one end, the other end ground connection of the 6th resistance R6, described second A 12 resistance R22 first triode Q1 of termination base stage, its another termination pin of the first chip IC 1 the 18th；

The colelctor electrode of the first triode Q1 connects the first diode D1 anode, and affiliated first diode D1 negative electrode meets 24V Voltage, the first triode Q1 colelctor electrode connects the first relay RL1 one end, and a port other the first relay RL1 connects 24V voltages, the first relay RL1 also has a port to connect the 9th electric capacity C9 one end, the 9th electric capacity C9 another termination Second relay RL2 one end, the first triode Q1 of termination of the second relay RL2 in addition colelctor electrode, the second electromagnetism is opened Closing RL2 also has a port to connect 24V voltages.