CN106773640A

CN106773640A - A kind of control device of telescopic tube

Info

Publication number: CN106773640A
Application number: CN201611098392.5A
Authority: CN
Inventors: 李穆威; 李穆生
Original assignee: Foshan Lion Technology Co Ltd
Current assignee: Foshan Lion Technology Co Ltd
Priority date: 2016-12-03
Filing date: 2016-12-03
Publication date: 2017-05-31

Abstract

The present invention relates to a kind of control device of telescopic tube, including outer tube, inner tube, latch, latch spring, differential mechanism, driver element, latch control unit and extension and contraction control unit；In interior tube outside, outer tube is provided with outer tube location hole to outer tube sleeve, and inner tube is provided with inner tube location hole, and latch may be inserted into outer tube location hole and inner tube location hole in the presence of latch spring, so as to lock outer tube and inner tube；Driver element is connected by differential mechanism with latch control unit, extension and contraction control unit；Latch control unit can control the motion of latch；Extension and contraction control unit can control inner tube with respect to the motion of outer tube.When cyclist presses the switch of driver element or rotates the handle of driver element, driver element drives latch control unit and extension and contraction control unit motion by differential mechanism, so as to realize locking or unblock of the flexible and latch of telescopic tube to outer tube and inner tube, operating process is simple, the folding of folding bicycle and expansion is become more convenient.

Description

A kind of control device of telescopic tube

Technical field

The present invention relates to a kind of control device of telescopic tube, the especially control device of bicycle telescopic tube.

Background technology

Folding bicycle is due to easy to use, present more and more welcomed by the people, but the folding of folding bicycle Will be completed manually with expansion, especially for the telescopic tube on folding bicycle, motion and locking between pipe fitting The locking and unblock of device are required for manually operated, and operating process is comparatively laborious.

The content of the invention

The technical problem to be solved in the present invention is to provide a kind of control device of telescopic tube, passes through cyclist simple Operation can just complete the locking and unblock of the flexible and locking device of telescopic tube.

In order to solve the above technical problems, the technical scheme is that：A kind of control device of telescopic tube, including it is outer Pipe, inner tube, latch and latch spring；Outside said inner tube, the outer tube is provided with plug housing and is inserted described the outer tube sleeve Outer tube location hole is provided with key seat, latch flap is fixed with the plug housing, the latch and the latch spring are located at institute State in outer tube location hole；Said inner tube is provided with inner tube location hole, and the latch may be inserted into said inner tube location hole；It is described to insert One end of pin spring is withstood the latch, the other end and withstands the latch flap, and the elastic force of the latch spring can promote institute Latch is stated to be moved to the direction near said inner tube；The control device of the telescopic tube also includes differential mechanism, driver element, latch Control unit and extension and contraction control unit；The differential mechanism includes differential mechanism main wheel, the first axle shaft gear, the second axle shaft gear, OK Star gear and planetary gear shaft；The planetary gear, by the planetary gear shaft be arranged on the differential mechanism main wheel on, institute State planetary gear, can be rotated around the planetary gear shaft, the planetary gear, side mutually nibbled with first axle shaft gear Close, the planetary gear, opposite side be meshed with second axle shaft gear；The axis of the differential mechanism main wheel, described The axis of the axis of one axle shaft gear and second axle shaft gear is located along the same line；The first base is fixed with the outer tube Seat, the differential mechanism is arranged on first pedestal；The driver element is connected with the differential mechanism main wheel, described to drive list Unit drives the differential mechanism main wheel to rotate；The latch control unit and the latch, the first axle shaft gear of the differential mechanism It is connected；First axle shaft gear controls the motion of the latch by the latch control unit；The extension and contraction control unit Including the second wire spool, the second bracing wire and the 3rd bracing wire；Second wire spool is fixedly connected with second axle shaft gear, institute The one end for stating the second bracing wire is fixed on second wire spool, the other end is connected with said inner tube, and the one of the 3rd bracing wire End is fixed on second wire spool, the other end is connected with said inner tube.

Used as the further improvement of the control device of above-mentioned telescopic tube of the invention, the differential mechanism main wheel is gear；Institute Stating driver element includes motor, gear reduction unit and control circuit unit；The output shaft of the motor and the gear reduction unit It is connected, the output shaft of the gear reduction unit is provided with output gear, and the output gear is meshed with the differential mechanism main wheel； The motor and the gear reduction unit are fixed on the outer tube by the second pedestal；Control circuit unit and the electricity Mechatronics, the control circuit unit controls the rotation of the motor.

Used as the further improvement of the control device of above-mentioned telescopic tube of the invention, the control circuit unit includes the One microswitch, the second microswitch, the first relay, the second relay, triple-pole double throw formula switch and battery；Described first after Electrical equipment has one group of terminal, i.e. the first relay public terminal and the first relay normally open terminal；Second relay has one group Terminal, i.e. the second relay public terminal and the second relay normally open terminal；The triple-pole double throw formula switch is Non auto-reset Switch；The triple-pole double throw formula switch has three groups of terminals, i.e. the first pole the first terminal, the first pole Second terminal and first extremely public Terminal, the second pole the first terminal, the second pole Second terminal and the second pole public terminal, the 3rd pole the first terminal, the 3rd pole the altogether Two-terminal and the 3rd pole public terminal；First microswitch is arranged on first pedestal；Second microswitch On second pedestal, the second limited block is connected with the latch, second limited block can touch described The trigger mechanism of two microswitches, makes second microswitch produce switching action；The first of the triple-pole double throw formula switch Pole the first terminal, the second pole Second terminal are electrically connected with the positive pole of the battery；First pole of triple-pole double throw formula switch the Two-terminal, the second pole the first terminal are electrically connected with the negative pole of the battery；The normally closed terminal of first microswitch with it is described First pole public terminal electrical connection of triple-pole double throw formula switch；The public terminal of first microswitch and first relay One terminal electrical connection of the coil of device；Another terminal of the coil of first relay is switched with the triple-pole double throw formula The 3rd pole the first terminal electrical connection；The first pole that the normally closed terminal of second microswitch is switched with the triple-pole double throw formula Public terminal is electrically connected；The public terminal of second microswitch is electrically connected with a terminal of the coil of second relay Connect；The 3rd pole Second terminal that another terminal of the coil of second relay is switched with the triple-pole double throw formula is electrically connected Connect；The first pole public terminal that the first terminal of the motor is switched with the triple-pole double throw formula is electrically connected；The of the motor Two-terminal is electrically connected with the first relay normally open terminal；The first relay public terminal is opened with the triple-pole double throw formula The 3rd pole public terminal electrical connection closed；3rd pole public terminal of the triple-pole double throw formula switch is opened with the triple-pole double throw formula The the second pole public terminal electrical connection closed；The second relay normally open terminal is electrically connected with the first relay normally open terminal Connect；The second relay public terminal is electrically connected with the first relay public terminal.

Used as the further improvement of the control device of above-mentioned telescopic tube of the invention, the control circuit unit includes the One microswitch, the second microswitch, the first diode, the second diode, DPDT formula switch and battery；It is described bipolar double Throwing formula switch is non-automatically reset switch；The DPDT formula switch has two groups of terminals, i.e. the first pole the first terminal, first Pole Second terminal and the first pole public terminal, the second pole the first terminal, the second pole Second terminal and the second pole public terminal；It is described First microswitch is arranged on first pedestal；Second microswitch is arranged on second pedestal, described to insert The second limited block is connected with pin, second limited block can touch the trigger mechanism of second microswitch, made described Second microswitch produces switching action；First pole the first terminal of DPDT formula switch, the second pole Second terminal with The positive pole electrical connection of the battery；First pole Second terminal of DPDT formula switch, the second pole the first terminal with it is described The negative pole electrical connection of battery；First pole public terminal of the DPDT formula switch is electrically connected with the positive pole of first diode Connect；The negative pole of first diode is electrically connected with the normally closed terminal of first microswitch；First microswitch Public terminal is electrically connected with the first terminal of the motor；The Second terminal of the motor switched with the DPDT formula Two pole public terminal electrical connections；The negative pole of second diode is electrically connected with the positive pole of first diode；Described second The positive pole of diode is electrically connected with the normally closed terminal of second microswitch；The public terminal of second microswitch and institute State the public terminal electrical connection of the first microswitch.

Used as the further improvement of the control device of above-mentioned telescopic tube of the invention, the control circuit unit includes the One microswitch, the second microswitch, the 3rd relay, the 4th relay, the first button switch, the second button switch and electricity Pond；3rd relay has three groups of terminals, i.e. the 3rd the first public terminal of relay and the 3rd the first normally opened terminal of relay, 3rd the second public terminal of relay and the 3rd the second normally opened terminal of relay, the public terminal of the 3rd relay the 3rd and the 3rd after The normally opened terminal of electrical equipment the 3rd；4th relay has three groups of terminals, i.e. the 4th the first public terminal of relay and the 4th relay The normally opened terminal of device first, the 4th the second public terminal of relay and the 4th the second normally opened terminal of relay, the 4th relay the 3rd Public terminal and the normally opened terminal of the 4th relay the 3rd；First button switch and second button switch are all automatic multiple The normally open push button switch of position；First microswitch is arranged on first pedestal；Second microswitch is arranged on On second pedestal, the second limited block is connected with the latch, second limited block can touch second fine motion The trigger mechanism of switch, makes second microswitch produce switching action；One terminal of first button switch and institute State the normally opened terminal electrical connection of the 3rd relay the 3rd；Another terminal of first button switch and the 3rd relay Three public terminals are electrically connected；The normally opened terminal of 3rd relay the 3rd is electrically connected with the positive pole of the battery；Described 3rd after The public terminal of electrical equipment the 3rd is electrically connected with the normally closed terminal of first microswitch；The public terminal of first microswitch A terminal with the coil of the 3rd relay is electrically connected；Another terminal of the coil of the 3rd relay with it is described The negative pole electrical connection of battery；One terminal and the normally opened terminal of the 4th relay the 3rd of second button switch are electrically connected Connect；Another terminal of second button switch is electrically connected with the public terminal of the 4th relay the 3rd；Described 4th after The normally opened terminal of electrical equipment the 3rd is electrically connected with the positive pole of the battery；The public terminal of 4th relay the 3rd is micro- with described second The normally closed terminal electrical connection of dynamic switch；One of the public terminal of second microswitch and the coil of the 4th relay Terminal is electrically connected；Another terminal of the coil of the 4th relay is electrically connected with the negative pole of the battery；Described 3rd after The normally opened terminal of electrical equipment first is electrically connected with the positive pole of the battery；The first public terminal of 3rd relay and the motor The first terminal is electrically connected；The Second terminal of the motor is electrically connected with the second public terminal of the 3rd relay；Described 3rd The normally opened terminal of relay second is electrically connected with the negative pole of the battery；The normally opened terminal of 4th relay first and the described 3rd The normally opened terminal of relay first is electrically connected；The first public terminal of 4th relay and the second common port of the 3rd relay Son electrical connection；The second public terminal of 4th relay is electrically connected with the first public terminal of the 3rd relay；Described Four the second normally opened terminals of relay are electrically connected with the normally opened terminal of the 3rd relay second.

Used as the further improvement of the control device of above-mentioned telescopic tube of the invention, the differential mechanism main wheel is wire spool； The driver element includes driving wire spool, handle, the 4th bracing wire and the 5th bracing wire；The driving wire spool is arranged on described outer Guan Shang, the driving wire spool is connected with the differential mechanism main wheel by the 4th bracing wire and the 5th bracing wire, the hand Handle is fixed on the driving wire spool.

Used as the further improvement of the control device of above-mentioned telescopic tube of the invention, the latch control unit includes first Wire spool and the first bracing wire；First wire spool is fixedly connected with first axle shaft gear, is set on first wire spool There is the first projection, first pedestal is provided with the first block, and first projection can touch first block；Described One end of one bracing wire is fixed on first wire spool, the other end is connected with the latch.

Used as the further improvement of the control device of above-mentioned telescopic tube of the invention, the latch control unit also includes Magnet and iron block, the magnet are fixed in said inner tube, and the iron block is fixed on first pedestal, the magnet and institute Iron block is stated to attract each other；During telescopic tube launches, the iron block can be to described second to the attraction of the magnet Axle shaft gear produces the moment of resistance；The iron block should make the process launched in telescopic tube to the size of the attraction of the magnet In, before the first projection on first wire spool touches first block, second axle shaft gear is subject to The moment of resistance be both greater than the moment of resistance being subject to equal to first axle shaft gear.

Used as the further improvement of the control device of above-mentioned telescopic tube of the invention, the latch control unit also includes First torsionspring, one end of first torsionspring is fixed on first pedestal, the other end is fixed on described second On wire spool；The mounting means of first torsionspring should make during telescopic tube launches, and described first reverses bullet Spring produces the moment of resistance to second axle shaft gear；The size of the elastic force of first torsionspring should make to launch in telescopic tube During, before the first projection on first wire spool touches first block, second half axle gear The moment of resistance that wheel is subject to is both greater than the moment of resistance being subject to equal to first axle shaft gear.

Used as the further improvement of the control device of above-mentioned telescopic tube of the invention, the latch control unit also includes Second torsionspring, one end of second torsionspring is fixed on first pedestal, the other end is fixed on described first On wire spool；The mounting means of second torsionspring should make during telescopic tube launches, and described second reverses bullet Spring is to the first axle shaft gear produces driving force square, so as to reduce the moment of resistance that first axle shaft gear is subject to；Described The size of the elastic force of two torsionsprings should make during telescopic tube launches, until first on first wire spool is convex Before block touches first block, the moment of resistance that second axle shaft gear is subject to is both greater than equal to first half axle gear The moment of resistance that wheel is subject to.

Used as the further improvement of the control device of above-mentioned telescopic tube of the invention, the latch control unit also includes Stop bolt, the stop bolt is connected through a screw thread with first pedestal, the bottom and described second for stopping bolt The rotating shaft of axle shaft gear is in contact, and the rotating shaft for stopping bolt to second axle shaft gear produces frictional force, the frictional force The moment of resistance is produced to second axle shaft gear；The frictional force size of rotating shaft of the stop bolt to second axle shaft gear Should make telescopic tube launch during, until the first projection on first wire spool touch first block it Before, the moment of resistance that second axle shaft gear is subject to is both greater than the moment of resistance being subject to equal to first axle shaft gear.

Used as the further improvement of the control device of above-mentioned telescopic tube of the invention, the latch control unit also includes Spacing bracing wire；One end of the spacing bracing wire is connected with first pedestal, the other end is connected with said inner tube；Work as said inner tube Move upward to when the spacing bracing wire is stretched completely, said inner tube due to limited by the spacing bracing wire and can not be after Continuous motion upwards, now the position where said inner tube is exactly said inner tube the reached extreme higher position of motion upwards；The limit The length of position bracing wire should make when said inner tube moves upward to extreme higher position, inner tube location hole and the outer tube of said inner tube Outer tube location hole correspondence.

Used as the further improvement of the control device of above-mentioned telescopic tube of the invention, the latch control unit includes first Wire spool, the first bracing wire and blocking unit；First wire spool is fixedly connected with first axle shaft gear, described first around Drum is provided with the first projection；One end of first bracing wire is fixed on first wire spool, the other end and the latch It is connected；The blocking unit includes the second block, stopper spring, blocking unit housing and control arm；The blocking unit housing It is fixed on first pedestal；Second block and the stopper spring are arranged in the blocking unit housing；It is described One end of second block is provided with inclined-plane；Withstand second block, the other end and withstand the stop in one end of the stopper spring Unit housings, the elastic force of the stopper spring can promote second block to be transported near the direction of second wire spool It is dynamic；The control arm is arranged on first pedestal by rotating shaft, and the control arm can be around the axis of rotation, the control Arm processed is connected with second block；First projection of first wire spool can touch the control arm；The flexible control Second wire spool of unit processed is provided with the second projection, and second projection can touch second block.

Used as the further improvement of the control device of above-mentioned telescopic tube of the invention, the latch control unit includes first Wire spool, the first bracing wire and auxiliary unit；First wire spool is fixedly connected with first axle shaft gear；Described first draws One end of line is fixed on first wire spool, the other end is connected with the latch；The auxiliary unit include auxiliary bolt, Secondary spring and auxiliary stay；The auxiliary bolt and the secondary spring are arranged on first pedestal；Said inner tube sets There is auxiliary positioning hole, the auxiliary bolt may be inserted into the auxiliary positioning hole；Withstand described in one end of the secondary spring Auxiliary bolt, the other end withstand first pedestal, and the elastic force of the secondary spring can promote the auxiliary bolt to close The direction motion of said inner tube；One end of the auxiliary stay is fixed on first wire spool, the other end and the auxiliary Latch is connected.

Used as the further improvement of the control device of above-mentioned telescopic tube of the invention, the outer tube and said inner tube are all circle Pipe, the inner surface of the outer tube is engaged with the outer surface of said inner tube, and said inner tube is provided with sunk structure vertically；Institute State and be provided between outer tube and said inner tube stop pin and anti-tube, the stop pin is connected with said inner tube, the anti-tube with The outer tube is connected；The both sides of the anti-tube are provided with anti-tube fluting vertically, and the stop pin is interspersed in the anti-rotation In pipe fluting.

Used as the further improvement of the control device of above-mentioned telescopic tube of the invention, the outer tube and said inner tube are all circle Pipe, has space between the inner surface of the outer tube and the outer surface of said inner tube, is set between the outer tube and said inner tube There are the first bushing and the second bushing；First bushing is fixed on the outer tube, the outer surface of first bushing with it is described The inner surface of outer tube is engaged, the inner surface of first bushing is engaged with the outer surface of said inner tube；First bushing Be provided with axially through the first bushing fluting；Second bushing is fixed in said inner tube, the appearance of second bushing Face is engaged with the inner surface of the outer tube, the inner surface of second bushing is engaged with the outer surface of said inner tube；It is described Second bushing be provided with axially through the second bushing fluting；Stop pin and anti-rotation are provided between the outer tube and said inner tube Pipe, the stop pin is connected with said inner tube, and the anti-tube is connected with the outer tube；The both sides of the anti-tube are provided with along axle To anti-tube slot, the stop pin is interspersed in the anti-tube fluting.

Used as the further improvement of the control device of above-mentioned telescopic tube of the invention, the outer tube and said inner tube are all circle Pipe, the inner surface of the outer tube is engaged with the outer surface of said inner tube；Said inner tube is provided with groove vertically, the outer tube Flange vertically is provided with, the groove of said inner tube is engaged with the flange of the outer tube.

Used as the further improvement of the control device of above-mentioned telescopic tube of the invention, the outer tube and said inner tube are all non- Pipe, the inner surface of the outer tube is engaged with the outer surface of said inner tube.

The beneficial effects of the invention are as follows：As long as cyclist presses the switch of control circuit unit or rotates handle, stretch The control device of sleeve pipe can just complete the locking and unblock of the flexible and locking device of telescopic tube, and operating process is simple, makes The folding and expansion of folding bicycle become more convenient.

Brief description of the drawings

Fig. 1 is the stereoscopic schematic diagram of the control device first embodiment of telescopic tube of the present invention；

Fig. 2 is the A direction views of first embodiment of the invention shown in Fig. 1；

Fig. 3 is the B direction views of first embodiment of the invention shown in Fig. 2；

Fig. 4 is the C direction views of first embodiment of the invention shown in Fig. 2；

Fig. 5 is the H-H sectional views of first embodiment of the invention shown in Fig. 3；

Fig. 6 is the Y partial enlarged drawings of first embodiment of the invention shown in Fig. 2；

Fig. 7 is the structural representation of the driver element of the control device first embodiment of telescopic tube of the present invention；

Fig. 8 is the circuit diagram of the driver element of the control device first embodiment of telescopic tube of the present invention；

Fig. 9 is the outer tube and the structural representation of inner tube of the control device first embodiment of telescopic tube of the present invention；

Figure 10 is bracing wire and the inner tube of the extension and contraction control unit of the control device first embodiment of telescopic tube of the present invention Another schematic diagram of connected mode；

Figure 11 is the action specification figure that first embodiment of the invention telescopic tube is changed into contraction state from deployed condition；

Figure 12 is the action specification figure that first embodiment of the invention telescopic tube is changed into deployed condition from contraction state；

Figure 13 is the improvement of the circuit diagram of the driver element of the control device first embodiment of telescopic tube of the present invention；

Figure 14 is the structural representation of the control device second embodiment of telescopic tube of the present invention；

Figure 15 is the control device 3rd embodiment of telescopic tube of the present invention and the structural representation of fourth embodiment；

Figure 16 is the structural representation of the embodiment of control device the 5th of telescopic tube of the present invention；

Figure 17 is the structural representation of the control device sixth embodiment of telescopic tube of the present invention；

Figure 18 is the structural representation of the driver element of the embodiment of control device the 7th of telescopic tube of the present invention；

Figure 19 is the circuit diagram of the driver element of the embodiment of control device the 7th of telescopic tube of the present invention；

Figure 20 is the structural representation of the driver element of the embodiment of control device the 8th of telescopic tube of the present invention；

Figure 21 is the circuit diagram of the driver element of the embodiment of control device the 8th of telescopic tube of the present invention；

Figure 22 is the structural representation of the embodiment of control device the 9th of telescopic tube of the present invention；

Figure 23 is the structural representation of the embodiment of control device the tenth of telescopic tube of the present invention；

Figure 24 is the D direction views of tenth embodiment of the invention shown in Figure 23；

Figure 25 is the N-N sectional views of tenth embodiment of the invention shown in Figure 23；

Figure 26 is the structural representation of the embodiment of control device the 11st of telescopic tube of the present invention；

Figure 27 is the F direction views of eleventh embodiment of the invention shown in Figure 26；

Figure 28 is the P-P sectional views of eleventh embodiment of the invention shown in Figure 27；

Figure 29 is the action specification figure that eleventh embodiment of the invention telescopic tube is changed into contraction state from deployed condition；

Figure 30 is the action specification figure that eleventh embodiment of the invention telescopic tube is changed into deployed condition from contraction state；

Figure 31 is the outer tube and the structural representation of inner tube of the embodiment of control device the 12nd of telescopic tube of the present invention；

Figure 32 is the outer tube and the structural representation of inner tube of the embodiment of control device the 13rd of telescopic tube of the present invention；

Figure 33 is the outer tube and the structural representation of inner tube of the embodiment of control device the 14th of telescopic tube of the present invention；

Figure 34 is the embodiment of control device the 15th of telescopic tube of the present invention and the outer tube and inner tube of the 16th embodiment Structural representation.

Specific embodiment

With reference to the accompanying drawings and examples, specific embodiment of the invention is described in further detail.Hereinafter implement Example is not limited to the scope of the present invention for illustrating the present invention.Additionally, in invention described below each embodiment As long as involved technical characteristic does not constitute conflict and can just be mutually combined each other.

First embodiment：As shown in Fig. 1,2,3,4,5, a kind of control device of telescopic tube, including outer tube 1, inner tube 2, Latch 3 and latch spring 4；Outer tube 1 is enclosed within the outside of inner tube 2, and outer tube 1 is provided with plug housing 5 and outer tube positioning is provided with plug housing 5 Hole 6, latch flap 7 is fixed with plug housing 5 by screw, and latch 3 and latch spring 4 are located in outer tube location hole 6；Inner tube 2 Inner tube location hole 8 is provided with, latch 3 may be inserted into inner tube location hole 8, so that inner tube 2 is positioned relative to outer tube 1；Latch bullet One end of spring 4 is withstood the latch 3, other end and withstands latch flap 7, and the elastic force of latch spring 4 can promote latch 3 near inner tube 2 direction motion.

The control device of the telescopic tube also includes differential mechanism 100, driver element 200, latch control unit 300 and stretches Control unit 400.

As shown in fig. 6, differential mechanism 100 include differential mechanism main wheel 110, the first axle shaft gear 120, the second axle shaft gear 130, Planetary gear 140,150 and planetary gear shaft 160；Differential mechanism main wheel 110 is gear, and differential mechanism main wheel 110 is provided with lug 111st, 112, planetary gear shaft 160 is connected with lug 111,112；Planetary gear 140,150 is arranged on by planetary gear shaft 160 On differential mechanism main wheel 110, planetary gear 140,150 can be rotated around planetary gear shaft 160, the side of planetary gear 140,150 It is meshed with the first axle shaft gear 120, the opposite side of planetary gear 140,150 is meshed with the second axle shaft gear 130；Differential mechanism The axis of the axis of main wheel 110, the axis of the first axle shaft gear 120 and the second axle shaft gear 130 is located along the same line.Outer tube The first pedestal 9 is fixed with 1, differential mechanism 100 is arranged on the first pedestal 9.

According to the principle of differential mechanism, when differential mechanism main wheel 110 is rotated, differential mechanism main wheel 110 can be by planetary gear 140th, 150 the first axle shaft gears 120 of drive and the second axle shaft gear 130 are rotated, if the first axle shaft gear 120 and the second semiaxis Any one in gear 130 is stopped and can not be rotated that by external force another in them still can be in differential mechanism main wheel 110 Drive lower rotation.

Driver element 200 is connected with differential mechanism main wheel 110, and driver element 200 drives differential mechanism main wheel 110 to rotate.Such as Fig. 7 Shown, driver element 200 includes motor M, gear reduction unit 210 and control circuit unit 220；The output shaft and gear of motor M Decelerator 210 is connected, and the output shaft of gear reduction unit 210 is provided with output gear 211, output gear 211 and differential mechanism main wheel 110 are meshed, therefore motor M can drive differential mechanism main wheel 110 to rotate by gear reduction unit 210；Motor M and The gear deceleration Device 210 is fixed on outer tube 1 by the second pedestal 11；Control circuit unit 220 is electrically connected with motor M and (electrically connected by electric wire Realize, electric wire is not shown in Figure of description), the rotation of control circuit unit 220 controlled motor M.

Control circuit unit 220 includes the first microswitch SQ1, the second microswitch SQ2, the first relay K1, second Relay K2, triple-pole double throw formula switch SA2 and battery G；Microswitch has public terminal, normally closed terminal and normally opened terminal, when micro- When the trigger mechanism of dynamic switch is not triggered, public terminal is connected with normally closed terminal and normally opened terminal disconnects, and works as microswitch Trigger mechanism when being triggered, microswitch produces switching action, its public terminal is disconnected with normally closed terminal and normally opened terminal Connect；First relay K1 has one group of terminal, i.e. the first relay public terminal k11 and the first relay normally open terminal k12；The Two relay K2 have one group of terminal, i.e. the second relay public terminal k21 and the second relay normally open terminal k22；Work as relay Coil when being not powered on, relay public terminal disconnects with relay normally open terminal；When the coil electricity of relay, relay Public terminal is connected with relay normally open terminal；Triple-pole double throw formula switch SA2 is non-automatically reset switch, that is, press switch Button makes switch switching state, and switch is maintained at current state without automatically restoring to original shape after hand release button State；Triple-pole double throw formula switch SA2 has three groups of terminals, i.e., the first pole the first terminal a1, the first pole Second terminal a2 and first are extremely public Terminal a0 altogether, the second pole the first terminal b1, the second pole Second terminal b2 and the second pole public terminal b0, the 3rd pole the first terminal C1, the 3rd pole Second terminal c2 and the 3rd pole public terminal c0；First microswitch SQ1 is arranged on the first pedestal 9, inner tube 2 On be fixed with the first limited block 12, the first limited block 12 can touch the trigger mechanism of the first microswitch SQ1, make the first fine motion Switch SQ1 produces switching action；Second microswitch SQ2 is arranged on the second pedestal 11, and the second limited block is connected with latch 3 13, the second limited block 13 can touch the trigger mechanism of the second microswitch SQ2, make the second microswitch SQ2 produce switching dynamic Make；Second limited block 13 is located between two side plates 78 of latch flap 7, and two side plates 78 can limit the second limited block 13 to two The deviation angle of side, it is ensured that the second limited block 13 can be directed at the trigger mechanism of the second microswitch SQ2；It is fixed with outer tube 1 Control box 17, the first relay K1, the second relay K2, triple-pole double throw formula switch SA2 and battery G are arranged in control box 17.

As shown in figure 8, the first pole the first terminal a1, second pole the Second terminal b2 and battery G of triple-pole double throw formula switch SA2 Positive pole electrical connection；The first pole Second terminal a2 of triple-pole double throw formula switch SA2, the second pole the first terminal b1 and battery G bear Pole electrically connects；The normally closed terminal of the first microswitch SQ1 is electrically connected with the first pole public terminal a0 of triple-pole double throw formula switch SA2 Connect；The public terminal of the first microswitch SQ1 is electrically connected with a terminal of the coil of the first relay K1；First relay K1 The 3rd pole the first terminal c1 of another terminal and triple-pole double throw formula switch SA2 of coil electrically connect；Second microswitch SQ2 The first pole public terminal a0 of normally closed terminal and triple-pole double throw formula switch SA2 electrically connect；The common port of the second microswitch SQ2 Son is electrically connected with a terminal of the coil of the second relay K2；Another terminal of the coil of the second relay K2 is extremely double with three The 3rd pole Second terminal c2 electrical connections of throwing formula switch SA2；The of the first terminal m1 of motor M and triple-pole double throw formula switch SA2 One pole public terminal a0 electrical connections；The Second terminal m2 of motor M is electrically connected with the first relay normally open terminal k12；First relay Device public terminal k11 is electrically connected with the 3rd pole public terminal c0 of triple-pole double throw formula switch SA2；Triple-pole double throw formula switch SA2's 3rd pole public terminal c0 is electrically connected with the second pole public terminal b0 of triple-pole double throw formula switch SA2；Second relay normally open end Sub- k22 is electrically connected with the first relay normally open terminal k12；Second relay public terminal k21 and the first relay public terminal K11 is electrically connected.

Latch control unit 300 includes the first wire spool 310 and the first bracing wire 320；First wire spool 310 and the first semiaxis Gear 120 be fixedly connected (be fixedly connected can by being glued, welding, bolt or pin the method realization such as connect, be integrally formed), the One end of one bracing wire 320 is fixed on the first wire spool 310, the other end bypasses the guide rod 77 that is fixed on latch flap 7 and inserts Pin 3 is connected；When the first axle shaft gear 120 is rotated, the first axle shaft gear 120 drives the first wire spool 310 to rotate, the first coiling Disk 310 moves latch 3 by the first bracing wire 320.

As shown in Figure 5 and Figure 6, the first wire spool 310 is provided with the first projection 311, and the first pedestal 9 is provided with the first block 10, the first projection 311 can touch the first block 10.

As shown in figures 4 and 9, extension and contraction control unit 400 includes the second wire spool 410, the second bracing wire 420 and the 3rd bracing wire 430；Second wire spool 410 is fixedly connected with the second axle shaft gear 130；One end of second bracing wire 420 is fixed on the second wire spool On 410, the other end of the second bracing wire 420 is connected with the lower end of inner tube 2；One end of 3rd bracing wire 430 is fixed on the second wire spool On 410, the 3rd bracing wire 430 passes through the lead ring for being fixed on the lower end of outer tube 1, the other end of the 3rd bracing wire 430 and the lower end phase of inner tube 2 Even；When the second axle shaft gear 130 is rotated, the second axle shaft gear 130 drives the second wire spool 410 to rotate, the second wire spool 410 Inner tube 2 is driven upwardly or downwardly to move by the second bracing wire 420 and the 3rd bracing wire 430.In addition, the 3rd bracing wire 430 and inner tube 2 Connection can also by the way of as shown in Figure 10, now one end of the 3rd bracing wire 430 be fixed on the second wire spool 410, The other end is connected with the upper end of inner tube 2.

As shown in figure 9, outer tube 1 and inner tube 2 are all pipe, the inner surface of outer tube 1 is engaged with the outer surface of inner tube 2, interior Pipe 2 is provided with sunk structure 21 vertically, and the second bracing wire 420 of extension and contraction control unit 400 and the 3rd bracing wire 430 can be from outer tubes Space between 1 inner surface and inner tube sunk structure 21 passes through；All it is pipe due to outer tube 1 and inner tube 2, in order to prevent inner tube 2 Rotated relative to outer tube 1, stop pin 61 and anti-tube 62 be provided between outer tube 1 and inner tube 2, stop pin 61 is connected with inner tube 2, Anti- tube 62 is fixed on anti-rotation pedestal tube 63, and anti-rotation pedestal tube 63 is fixed by screws on outer tube 1；The both sides of anti-tube 62 Anti- tube fluting 621 vertically is provided with, stop pin 61 is interspersed in anti-tube fluting 621.When inner tube 2 makees axle with respect to outer tube 1 During to motion, inner tube 2 drives stop pin 61 to be moved along anti-tube fluting 621.

The operation principle of the present embodiment is as follows：

First, telescopic tube is changed into the process of contraction state from deployed condition：

As shown in Figure 11 (a), when telescopic tube is in deployed condition, latch 3 is interspersed in outer tube location hole 6 and inner tube is fixed In the hole 8 of position, outer tube 1 and inner tube 2 are unable to relative motion；The button that triple-pole double throw formula switchs SA2 is pressed, makes the first pole public terminal A0 and the first pole the first terminal a1 are connected, the second pole public terminal b0 and the second pole the first terminal b1 is connected, the 3rd pole common port Sub- c0 and the 3rd pole the first terminal c1 are connected；Now, battery G, the first pole the first terminal a1, three of triple-pole double throw formula switch SA2 The first pole public terminal a0 of pole double-throw formula switch SA2, the normally closed terminal of the first microswitch SQ1, the first microswitch SQ1 Public terminal, the coil of the first relay K1, the 3rd pole the first terminal c1 of triple-pole double throw formula switch SA2, triple-pole double throw formula are opened Close the 3rd pole public terminal c0 of SA2, the second pole public terminal b0 of triple-pole double throw formula switch SA2, triple-pole double throw formula switch SA2 The second pole the first terminal b1 constitute a closed-loop path, the coil electricity of the first relay K1, the first relay common port Sub- k11 and the first relay normally open terminal k12 is connected, and motor M is powered, and the sense of current is to be flowed from the first terminal m1 of motor M To the Second terminal m2 of motor M, motor M is rotated forward；Motor M drives differential mechanism main wheel 110 positive by gear reduction unit 210 Rotate；As shown in Figure 11 (a), when just starting, latch 3 is interspersed in outer tube location hole 6 and inner tube location hole 8, and inner tube 2 can not phase Outer tube 1 is moved, because the second axle shaft gear 130 is fixedly connected with the second wire spool 410, the second wire spool 410 passes through second The bracing wire 430 of bracing wire 420 and the 3rd is connected with inner tube 2, therefore the second axle shaft gear 130 can not be rotated, and differential mechanism main wheel 110 can only The first axle shaft gear 120 is driven to rotate forward；First axle shaft gear 120 drives the first wire spool 310 to rotate forward, the first coiling Disk 310 pulls latch 3 by the first bracing wire 320, latch 3 is moved to the direction away from inner tube 2；Such as Figure 11 (b) and Figure 11 (c) Shown, after latch 3 moves a segment distance, latch 3 is exited from inner tube location hole 8, interior due to the stop without latch 3 Pipe 2 can be moved with respect to outer tube 1, and now the second axle shaft gear 130 can be rotated forward under the drive of differential mechanism main wheel 110, Second axle shaft gear 130 drives the second wire spool 410 to rotate forward, and the second wire spool 410 drives inner tube 2 to move downward, and stretches Sleeve pipe shortens；Latch 3 is moved under the drive of the first axle shaft gear 120 to away from the direction of inner tube 2, until the first axle shaft gear 120 stop rotating forward in the presence of latch spring 4 (in order to prevent the stress of latch spring 4 excessive, can be in the first pedestal 9 On set up a block, when the first projection 311 of the first wire spool 310 touches the block, the first axle shaft gear 120 is due to receiving Stop rotating forward to the stop of the block)；Inner tube 2 is moved downward under the drive of the second axle shaft gear 130, when inner tube 2 On the first limited block 12 touch the first microswitch SQ1 trigger mechanism when, the first microswitch SQ1 produce switching action, Its public terminal is disconnected with normally closed terminal, now the coil blackout of the first relay K1, the first relay public terminal k11 with First relay normally open terminal k12 disconnects, and motor M power-off stallings, telescopic tube is in contraction state.

2nd, telescopic tube is changed into the process of deployed condition from contraction state：

The button that triple-pole double throw formula switchs SA2 is pressed, connect the first pole public terminal a0 and the first pole Second terminal a2, Second pole public terminal b0 and the second pole Second terminal b2 is connected, the 3rd pole public terminal c0 and the 3rd pole Second terminal c2 connects It is logical；Now, battery G, the second pole Second terminal b2 of triple-pole double throw formula switch SA2, triple-pole double throw formula switch SA2 it is second extremely public Terminal b0, the 3rd pole public terminal c0 of triple-pole double throw formula switch SA2, triple-pole double throw formula switch second end of the 3rd pole of SA2 altogether Sub- c2, the coil of the second relay K2, the public terminal of the second microswitch SQ2, the normally closed terminal of the second microswitch SQ2, The first pole public terminal a0 of triple-pole double throw formula switch SA2, the first pole Second terminal a2 of triple-pole double throw formula switch SA2 are constituted One closed-loop path, the coil electricity of the second relay K2, the second relay public terminal k21 and the second relay normally open terminal K22 is connected, and motor M is powered, and the sense of current is the first terminal m1, motor M from the Second terminal m2 flow direction motors M of motor M Rotate backward；Motor M drives differential mechanism main wheel 110 to rotate backward by gear reduction unit 210；Due to now the second axle shaft gear 130 are subject to gravity, the outer tube 1 of inner tube 2 to the frictional force of inner tube 2, the frictional force institute of 9 pairs of the second axle shaft gears 130 of the first pedestal The moment of resistance of formation, and the first axle shaft gear 120 is subject to what the frictional force of 9 pairs of the first axle shaft gears 120 of the first pedestal was formed The moment of resistance, in general, the moment of resistance that the second axle shaft gear 130 is subject to is more than or equal to the resistance that the first axle shaft gear 120 is subject to Square, therefore according to the principle of differential mechanism, differential mechanism main wheel 110 can drive the first axle shaft gear 120 to rotate backward, such as Figure 12 A shown in () and Figure 12 (b), the first axle shaft gear 120 drives the first wire spool 310 to rotate backward, so as to loosen the first bracing wire 320, when the first projection 311 on the first wire spool 310 touches the first block 10, the first axle shaft gear 120 is due to receiving Can not be rotated backward to the stop of the first block 10, now the first bracing wire 320 is in relaxed state；Meanwhile, differential mechanism main wheel 110 the second axle shaft gears 130 of drive are rotated backward, and the second axle shaft gear 130 drives the second wire spool 410 to rotate backward, and second Wire spool 410 drives inner tube 2 to move upwards, when inner tube 2 is moved to makes inner tube location hole 8 and outer tube location hole 6 pairs corresponding due to The first bracing wire 320 being connected with latch 3 is in relaxed state, therefore latch 3 inserts inner tube positioning in the presence of latch spring 4 In hole 8, while the second limited block 13 being connected with latch 3 touches the trigger mechanism of the second microswitch SQ2, the second microswitch SQ2 produce switching action, its public terminal is disconnected with normally closed terminal, now the coil blackout of the second relay K2, second after Electrical equipment public terminal k21 and the second relay normally open terminal k22 disconnects, and motor M power-off stallings, telescopic tube is in and launches shape Shown in state, such as Figure 12 (c).

In addition, as shown in figure 13, can connect a master switch S on battery G, and master switch S is non-automatically reset switch, When the button for pressing master switch S makes master switch S close connection, circuit normal work；When the button for pressing master switch S makes always to open When closing S disconnections, battery G is disconnected from the circuit, whole down circuitry.Similarly, in the 7th embodiment and the 8th embodiment Circuit, it is also possible to connect master switch S on battery G.

It should be noted that during telescopic tube is changed into deployed condition from contraction state, it is understood that there may be some feelings Condition, makes to drive the first axle shaft gear 120 and the second axle shaft gear 130 anti-by planetary gear 140,150 when differential mechanism main wheel 110 During to rotating, the moment of resistance that the moment of resistance that the second axle shaft gear 130 is subject to is subject to less than the first axle shaft gear 120, for example due to The tolerance selection of part is unreasonable and to increase frictional force between the first axle shaft gear 120 and the first pedestal 9 a lot, and at this moment the The moment of resistance that two axle shaft gears 130 are subject to is possible to the moment of resistance being subject to less than the first axle shaft gear 120, such differential mechanism master Wheel 110 cannot drive the first axle shaft gear 120 to rotate backward loosens the first bracing wire 320, so as to cause latch 3 to insert In inner tube location hole 8.When this condition is met, can be using second embodiment to any one of sixth embodiment scheme To solve.

Second embodiment：As shown in figure 14, the present embodiment is with the difference of first embodiment：Latch control unit 300 is also Including magnet 331 and iron block 332, magnet 331 is fixed in inner tube 2, and iron block 332 is fixed on the first pedestal 9, the He of magnet 331 Iron block 332 attracts each other.The other structures of the present embodiment are identical with first embodiment, therefore do not remake repeat specification.

During telescopic tube launches, differential mechanism main wheel 110 drives the first half axle gear by planetary gear 140,150 The axle shaft gear 130 of wheel 120 and second is rotated backward, and iron block 332 can be produced to the attraction of magnet 331 to the second axle shaft gear 130 The raw moment of resistance；Iron block 332 size of the attraction of magnet 331 should be made telescopic tube launch during, until first around Before the first projection 311 on drum 310 touches the first block 10, the moment of resistance that the second axle shaft gear 130 is subject to is both greater than Equal to the moment of resistance that the first axle shaft gear 120 is subject to, such axle shaft gear 130 of first axle shaft gear 120 and second just can be by Mode normal rotation described in first embodiment.

In the present embodiment, telescopic tube from deployed condition be changed into contraction state process and from contraction state be changed into exhibition The process of open state is identical with first embodiment, therefore does not remake repeat specification.

If it should be noted that magnet 331 and the location swap of iron block 332, or iron block 332 is changed into and magnet 331 magnet for attracting each other, effect is just the same with the present embodiment.

3rd embodiment：As shown in Figure 15 (a), the present embodiment is with the difference of first embodiment：Latch control unit 300 Also include the first torsionspring 341, one end of the first torsionspring 341 is fixed on the first pedestal 9, the other end is fixed on second On wire spool 410；The mounting means of the first torsionspring 341 should make during telescopic tube launches, the first torsionspring 341 pairs of the second axle shaft gears 130 produce the moment of resistance.The other structures of the present embodiment are identical with first embodiment, therefore do not remake Repeat specification.

The size of the elastic force of the first torsionspring 341 should make during telescopic tube launches, until the first wire spool Before the first projection 311 on 310 touches the first block 10, the moment of resistance that the second axle shaft gear 130 is subject to is both greater than and is equal to The moment of resistance that first axle shaft gear 120 is subject to, the axle shaft gear 130 of such first axle shaft gear 120 and second just can be by first Mode normal rotation described in embodiment.

Fourth embodiment：As shown in Figure 15 (b), the present embodiment is with the difference of first embodiment：Latch control unit 300 Also include the second torsionspring 342, one end of the second torsionspring 342 is fixed on the first pedestal 9, the other end is fixed on first On wire spool 310；The mounting means of the second torsionspring 342 should make during telescopic tube launches, the second torsionspring 342 pairs of produces driving force squares of the first axle shaft gear 120, so as to reduce the moment of resistance that the first axle shaft gear 120 is subject to.The present embodiment Other structures it is identical with first embodiment, therefore do not remake repeat specification.

The size of the elastic force of the second torsionspring 342 should make during telescopic tube launches, until the first wire spool Before the first projection 311 on 310 touches the first block 10, the moment of resistance that the second axle shaft gear 130 is subject to is both greater than and is equal to The moment of resistance that first axle shaft gear 120 is subject to, the axle shaft gear 130 of such first axle shaft gear 120 and second just can be by first Mode normal rotation described in embodiment.

5th embodiment：As shown in figure 16, the present embodiment is with the difference of first embodiment：Latch control unit 300 is also Including stopping bolt 350, stop that bolt 350 is connected through a screw thread with the first pedestal 9, stop the bottom and the second half of bolt 350 The rotating shaft 131 of shaft gear 130 is in contact, and stops that the rotating shaft 131 of 350 pairs of the second axle shaft gears 130 of bolt produces frictional force, and this rubs Wipe power and the moment of resistance is produced to the second axle shaft gear 130.Stop that bolt 350 can change stop bolt 350 and second by turning The contact force size of the rotating shaft 131 of axle shaft gear 130, so as to change stop 350 pairs of rotating shafts of the second axle shaft gear 130 of bolt 131 frictional force size.The other structures of the present embodiment are identical with first embodiment, therefore do not remake repeat specification.

Adjustment stops that bolt 350 makes during telescopic tube launches, the first projection on the first wire spool 310 Before 311 encounter the first block 10, the moment of resistance that the second axle shaft gear 130 is subject to is both greater than to be received equal to the first axle shaft gear 120 The moment of resistance for arriving, the axle shaft gear 130 of such first axle shaft gear 120 and second just can be in the way of described in first embodiment Normal rotation.

Sixth embodiment：As shown in figure 17, the present embodiment is with the difference of first embodiment：Latch control unit 300 is also Including spacing bracing wire 360, one end of spacing bracing wire 360 is connected with the first pedestal 9, the other end is connected with inner tube 2.The present embodiment Other structures are identical with first embodiment, therefore do not remake repeat specification.

The effect of spacing bracing wire 360 is to limit the reached extreme higher position of motion upwards of inner tube 2, when inner tube 2 is moved upwards When spacing bracing wire 360 is stretched completely, inner tube 2 can not be continued up due to being limited by spacing bracing wire 360, this When inner tube 2 where position be exactly the reached extreme higher position of motion upwards of inner tube 2；The length of spacing bracing wire 360 should make in When pipe 2 moves upward to extreme higher position, the inner tube location hole 8 of inner tube 2 is corresponding with the outer tube location hole 6 of outer tube 1.

In the present embodiment, the process that telescopic tube is changed into contraction state from deployed condition is identical with first embodiment, area Be not telescopic tube will from contraction state be changed into deployed condition when, motor M be powered after, motor M pass through gear reduction unit 210 Differential mechanism main wheel 110 is driven to rotate backward, because the moment of resistance that the second axle shaft gear 130 is subject to is less than the first axle shaft gear 120 The moment of resistance being subject to, therefore when just starting, differential mechanism main wheel 110 can only drive the second axle shaft gear 130 to rotate backward and can not The first axle shaft gear 120 is driven to rotate backward；Second axle shaft gear 130 drives the second wire spool 410 to rotate backward, the second coiling Disk 410 drives inner tube 2 to move upwards, and when inner tube 2 moves upward to extreme higher position, the second axle shaft gear 130 is received due to inner tube 2 Stop rotating backward to the limitation of spacing bracing wire 360, now inner tube location hole 8 is corresponding with outer tube location hole 6；Second half axle gear After wheel 130 stops rotating backward, differential mechanism main wheel 110 drives the first axle shaft gear 120 reversely to turn under the driving of motor M Dynamic, the first axle shaft gear 120 drives the first wire spool 310 to rotate backward, and so as to loosen the first bracing wire 320, latch 3 is in latch bullet Inner tube location hole 8 is gradually inserted in the presence of spring 4, until the second limited block 13 being connected with latch 3 touches the second microswitch The trigger mechanism of SQ2, the second microswitch SQ2 produces switching action, its public terminal is disconnected with normally closed terminal, and now second The coil blackout of relay K2, the second relay public terminal k21 and the second relay normally open terminal k22 disconnect, motor M power-off Stalling, telescopic tube is in deployed condition.

7th embodiment：The control circuit unit 220 that the present embodiment is driver element 200 with the difference of first embodiment is not Together.

As shown in Figure 18 and Figure 19, in the present embodiment, control circuit unit 220 includes the first microswitch SQ1, second Microswitch SQ2, the first diode V1, the second diode V2, DPDT formula switch SA1 and battery G；DPDT formula is switched SA1 is non-automatically reset switch, that is, pressing the button of switch makes switch switching state, is switched after hand release button and kept In current state without automatically restoring to original state；DPDT formula switch SA1 has two groups of terminals, i.e. the first pole first Terminal a1, the first pole Second terminal a2 and the first pole public terminal a0, the second pole the first terminal b1, the second pole Second terminal b2 and Second pole public terminal b0；First microswitch SQ1 is arranged on the first pedestal 9, and the first limited block 12 is fixed with inner tube 2, First limited block 12 can touch the trigger mechanism of the first microswitch SQ1, the first microswitch SQ1 is produced switching action； Second microswitch SQ2 is arranged on the second pedestal 11, is connected with the second limited block 13 on latch 3, and the second limited block 13 can be with The trigger mechanism of the second microswitch SQ2 is touched, the second microswitch SQ2 is produced switching action；Second limited block 13 is located at Between two side plates 78 of latch flap 7, two side plates 78 can limit deviation angle of second limited block 13 to both sides, it is ensured that the Two limited blocks 13 can be directed at the trigger mechanism of the second microswitch SQ2；Control box 17, the first diode are fixed with outer tube 1 V1, the second diode V2, DPDT formula switch SA1 and battery G are arranged in control box 17.

The first pole the first terminal a1 of DPDT formula switch SA1, the positive pole of the second pole Second terminal b2 and battery G are electrically connected Connect；First pole Second terminal a2, the second pole the first terminal b1 of DPDT formula switch SA1 are electrically connected with the negative pole of battery G；It is double The first pole public terminal a0 of pole double-throw formula switch SA1 is electrically connected with the positive pole of the first diode V1；First diode V1's is negative Pole electrically connects with the normally closed terminal of the first microswitch SQ1；The public terminal of the first microswitch SQ1 and the first end of motor M Sub- m1 electrical connections；The Second terminal m2 of motor M is electrically connected with the second pole public terminal b0 of DPDT formula switch SA1；Second The negative pole of diode V2 is electrically connected with the positive pole of the first diode V1；The positive pole of the second diode V2 and the second microswitch SQ2 Normally closed terminal electrical connection；The public terminal of the second microswitch SQ2 is electrically connected with the public terminal of the first microswitch SQ1.

The other structures of the present embodiment are identical with first embodiment, therefore do not remake repeat specification.

The operation principle of the present embodiment is as follows：

The button that DPDT formula switchs SA1 is pressed, connect the first pole public terminal a0 and the first pole the first terminal a1, Second pole public terminal b0 and the second pole the first terminal b1 are connected；Now, battery G, first pole the of DPDT formula switch SA1 One terminal a1, the first pole public terminal a0 of DPDT formula switch SA1, the first diode V1, the first microswitch SQ1 it is normal It is closed end, the second pole public terminal b0 of the public terminal of the first microswitch SQ1, motor M, DPDT formula switch SA1, double The second pole the first terminal b1 of pole double-throw formula switch SA1 constitutes a closed-loop path, and the sense of current is the first end from motor M The Second terminal m2 of sub- m1 flow direction motors M, motor M are rotated forward；Motor M drives differential mechanism main wheel 110 to rotate forward, so that Latch 3 is exited from inner tube location hole 8, inner tube 2 is moved downward, and the course of work of the part is identical with first embodiment, therefore not Remake repeat specification；When the first limited block 12 in inner tube 2 touches the trigger mechanism of the first microswitch SQ1, the first fine motion Switch SQ1 produces switching action, its public terminal is disconnected with normally closed terminal, and now motor M power-off stalling, telescopic tube is in Contraction state.

The button that DPDT formula switchs SA1 is pressed, connect the first pole public terminal a0 and the first pole Second terminal a2, Second pole public terminal b0 and the second pole Second terminal b2 are connected；Now, battery G, second pole the of DPDT formula switch SA1 Two-terminal b2, the second pole public terminal b0 of DPDT formula switch SA1, motor M, the public terminal of the second microswitch SQ2, It is the normally closed terminal of the second microswitch SQ2, the second diode V2, the first pole public terminal a0 of DPDT formula switch SA1, double The first pole Second terminal a2 of pole double-throw formula switch SA1 constitutes a closed-loop path, and the sense of current is from second end of motor M The first terminal m1 of sub- m2 flow direction motors M, motor M are rotated backward；Motor M drives differential mechanism main wheel 110 to rotate backward, so that First bracing wire 320 is moved upwards in relaxed state, inner tube 2, and the course of work of the part is identical with first embodiment, therefore no longer Make repeat specification；The insertion inner tube of latch 3 location hole 8 when inner tube 2 is moved to makes inner tube location hole 8 and outer tube location hole 6 pairs corresponding In, while the second limited block 13 being connected with latch 3 touches the trigger mechanism of the second microswitch SQ2, the second microswitch SQ2 Switching action is produced, its public terminal is disconnected with normally closed terminal, now motor M power-off stalling, telescopic tube is in and launches shape State.

8th embodiment：The control circuit unit 220 that the present embodiment is driver element 200 with the difference of first embodiment is not Together.

As shown in Figure 20 and Figure 21, in the present embodiment, control circuit unit 220 includes the first microswitch SQ1, second Microswitch SQ2, the 3rd relay K3, the 4th relay K4, the first button switch SB1, the second button switch SB2 and battery G； 3rd relay K3 has three groups of terminals, i.e. the 3rd relay the first public terminal k31 and the 3rd the first normally opened terminal of relay K32, the 3rd relay the second public terminal k33 and the 3rd the second normally opened terminal k34 of relay, the common port of the 3rd relay the 3rd The sub- k35 and normally opened terminal k36 of the 3rd relay the 3rd；4th relay K4 has three groups of terminals, i.e. the 4th relay first public Terminal k41 and the 4th relay the first normally opened terminal k42, the 4th relay the second public terminal k43 and the 4th relay second Normally opened terminal k44, the public terminal k45 of the 4th relay the 3rd and the normally opened terminal k46 of the 4th relay the 3rd；First button switch SB1 and the second button switch SB2 are automatically reset normally open push button switches, i.e., when the button of switch is not pressed at switch In off-state, the switch connection when the button of switch is pressed, when the button of trip switch, switch automatically restores to original Off-state；First microswitch SQ1 is arranged on the first pedestal 9, and the first limited block 12 is fixed with inner tube 2, and first is spacing Block 12 can touch the trigger mechanism of the first microswitch SQ1, the first microswitch SQ1 is produced switching action；Second fine motion Switch SQ2 is arranged on the second pedestal 11, and the second limited block 13 is connected with latch 3, and the second limited block 13 can touch second The trigger mechanism of microswitch SQ2, makes the second microswitch SQ2 produce switching action；Second limited block 13 is located at latch flap 7 Two side plates 78 between, two side plates 78 can limit deviation angle of second limited block 13 to both sides, it is ensured that the second limited block 13 trigger mechanisms that can be directed at the second microswitch SQ2；Control box 17, the 3rd relay are fixed with by screw on outer tube 1 K3, the 4th relay K4, the first button switch SB1, the second button switch SB2 and battery G are arranged in control box 17.

One terminal of the first button switch SB1 is electrically connected with the normally opened terminal k36 of the 3rd relay the 3rd；First button is opened Another terminal for closing SB1 is electrically connected with the public terminal k35 of the 3rd relay the 3rd；The normally opened terminal k36 of 3rd relay the 3rd Positive pole with battery G is electrically connected；The public terminal k35 of 3rd relay the 3rd is electrically connected with the normally closed terminal of the first microswitch SQ1 Connect；The public terminal of the first microswitch SQ1 is electrically connected with a terminal of the coil of the 3rd relay K3；3rd relay K3 Another terminal of coil electrically connected with the negative pole of battery G；One terminal and the 4th relay of the second button switch SB2 Three normally opened terminal k46 electrical connections；Another terminal and the public terminal k45 of the 4th relay the 3rd electricity of the second button switch SB2 Connection；The normally opened terminal k46 of 4th relay the 3rd is electrically connected with the positive pole of battery G；The public terminal k45 of 4th relay the 3rd with The normally closed terminal electrical connection of the second microswitch SQ2；The public terminal of the second microswitch SQ2 and the coil of the 4th relay K4 A terminal electrical connection；Another terminal of the coil of the 4th relay K4 is electrically connected with the negative pole of battery G；3rd relay First normally opened terminal k32 is electrically connected with the positive pole of battery G；The first terminal of the 3rd relay the first public terminal k31 and motor M M1 is electrically connected；The Second terminal m2 of motor M is electrically connected with the 3rd the second public terminal of relay k33；3rd relay second is normal Beginning, sub- k34 was electrically connected with the negative pole of battery G；4th the first normally opened terminal k42 of relay and the 3rd the first normally opened end of relay Sub- k32 electrical connections；4th relay the first public terminal k41 is electrically connected with the 3rd the second public terminal of relay k33；4th after Electrical equipment the second public terminal k43 is electrically connected with the 3rd the first public terminal of relay k31；4th the second normally opened terminal of relay K44 is electrically connected with the 3rd the second normally opened terminal k34 of relay.

The operation principle of the present embodiment is as follows：

The button of the first button switch SB1 is pressed, the first button switch SB1 is connected；Now, battery G, the first button are opened Close SB1, the normally closed terminal of the first microswitch SQ1, the public terminal of the first microswitch SQ1, the coil of the 3rd relay K3 Constitute a closed-loop path, the coil electricity of the 3rd relay K3, the 3rd relay the first public terminal k31 and the 3rd relay The normally opened terminal k32 of device first is connected, and the 3rd relay the second public terminal k33 connects with the 3rd the second normally opened terminal k34 of relay Logical, the public terminal k35 of the 3rd relay the 3rd and the normally opened terminal k36 of the 3rd relay the 3rd are connected, so that battery G, the 3rd The normally opened terminal k32 of relay first, the 3rd the first public terminal of relay k31, motor M, the 3rd the second public terminal of relay K33, the normally opened terminal k34 of the 3rd relay second constitute a closed-loop path, and motor M is powered, and the sense of current is the from motor M The Second terminal m2 of one terminal m1 flow direction motors M, motor M are rotated forward；Motor M can unclamp the first button switch after being powered The button of SB1, because now the public terminal k35 of the 3rd relay the 3rd and the normally opened terminal k36 of the 3rd relay the 3rd are connected, because Even if this first button switch SB1 disconnects, battery G, the normally opened terminal k36 of the 3rd relay the 3rd, the 3rd relay the 3rd are public Terminal k35, the normally closed terminal of the first microswitch SQ1, the public terminal of the first microswitch SQ1, the line of the 3rd relay K3 Circle still constitutes a closed-loop path, and the coil of the 3rd relay K3 is still powered on, and motor M is still rotated forward；It is poor that motor M drives Fast device main wheel 110 is rotated forward, so that latch 3 is exited from inner tube location hole 8, inner tube 2 is moved downward, the work of the part Process is identical with first embodiment, therefore does not remake repeat specification；When the first limited block 12 in inner tube 2 touches the first microswitch During the trigger mechanism of SQ1, the first microswitch SQ1 produces switching action, its public terminal is disconnected with normally closed terminal, and now the The coil blackout of three relay K3, the 3rd relay the first public terminal k31 and the 3rd the first normally opened terminal k32 of relay break Open, the 3rd relay the second public terminal k33 and the 3rd the second normally opened terminal k34 of relay disconnect, and the 3rd relay the 3rd is public Terminal k35 and the normally opened terminal k36 of the 3rd relay the 3rd disconnect altogether, and motor M power-off stallings, telescopic tube is in contraction state.

The button of the second button switch SB2 is pressed, the second button switch SB2 is connected；Now, battery G, the second button are opened Close SB2, the normally closed terminal of the second microswitch SQ2, the public terminal of the second microswitch SQ2, the coil of the 4th relay K4 Constitute a closed-loop path, the coil electricity of the 4th relay K4, the 4th relay the first public terminal k41 and the 4th relay The normally opened terminal k42 of device first is connected, and the 4th relay the second public terminal k43 connects with the 4th the second normally opened terminal k44 of relay Logical, the public terminal k45 of the 4th relay the 3rd and the normally opened terminal k46 of the 4th relay the 3rd are connected, so that battery G, the 4th The normally opened terminal k42 of relay first, the 4th the first public terminal of relay k41, motor M, the 4th the second public terminal of relay K43, the normally opened terminal k44 of the 4th relay second constitute a closed-loop path, and motor M is powered, and the sense of current is the from motor M The first terminal m1 of two-terminal m2 flow direction motors M, motor M are rotated backward；Motor M can unclamp the second button switch after being powered The button of SB2, because now the public terminal k45 of the 4th relay the 3rd and the normally opened terminal k46 of the 4th relay the 3rd are connected, because Even if this second button switch SB2 disconnects, battery G, the normally opened terminal k46 of the 4th relay the 3rd, the 4th relay the 3rd are public Terminal k45, the normally closed terminal of the second microswitch SQ2, the public terminal of the second microswitch SQ2, the line of the 4th relay K4 Circle still constitutes a closed-loop path, and the coil of the 4th relay K4 is still powered on, and motor M is still rotated backward；It is poor that motor M drives Fast device main wheel 110 is rotated backward, so that the first bracing wire 320 is moved upwards in relaxed state, inner tube 2, the work of the part Process is identical with first embodiment, therefore does not remake repeat specification；Make inner tube location hole 8 and outer tube location hole 6 when inner tube 2 is moved to During to correspondence in the insertion inner tube of latch 3 location hole 8, while the second limited block 13 being connected with latch 3 touches the second microswitch The trigger mechanism of SQ2, the second microswitch SQ2 produces switching action, its public terminal is disconnected with normally closed terminal, and now the 4th The coil blackout of relay K4, the 4th relay the first public terminal k41 and the 4th the first normally opened terminal k42 of relay disconnect, 4th relay the second public terminal k43 and the 4th the second normally opened terminal k44 of relay disconnect, the common port of the 4th relay the 3rd Sub- k45 and the normally opened terminal k46 of the 4th relay the 3rd disconnect, and motor M power-off stallings, telescopic tube is in deployed condition.

9th embodiment：As shown in figure 22, the present embodiment is with the difference of first embodiment：It is spacing without first in inner tube 2 Block 12；Differential mechanism main wheel 110 is wire spool；The difference of driver element 200 and first embodiment.

Driver element 200 includes driving wire spool 230, handle 240, the 4th bracing wire 250 and the 5th bracing wire 260；Drive around Drum 230 is arranged on outer tube 1, drives wire spool 230 to pass through the 4th bracing wire 250 and the 5th bracing wire 260 with differential mechanism main wheel 110 It is connected, handle 240 is fixed on driving wire spool 230.When handle 240 is rotated, handle 240 drives and drives 230 turns of wire spool It is dynamic, drive wire spool 230 to drive differential mechanism main wheel 110 to rotate by the 4th bracing wire 250 and the 5th bracing wire 260.The present embodiment Other structures are identical with first embodiment, therefore do not remake repeat specification.

When telescopic tube to be made is changed into contraction state from deployed condition, cyclist rotates forward handle 240, makes differential mechanism Main wheel 110 is rotated forward, so that latch 3 is exited from inner tube location hole 8, inner tube 2 is moved downward, when inner tube 2 is moved to most During lower position, stop operating handle 240, and now telescopic tube is in contraction state；When telescopic tube to be made becomes from contraction state During for deployed condition, cyclist rotates backward handle 240, rotates backward differential mechanism main wheel 110, so that the first bracing wire 320 Moved upwards in relaxed state, inner tube 2, the latch when inner tube 2 is moved to makes inner tube location hole 8 and outer tube location hole 6 pairs corresponding In 3 insertion inner tube location holes 8, now stop operating handle 240, and telescopic tube is in deployed condition.

It should be noted that driver element 200 can also use other modes, such as stepper motor or servomotor etc. Automatic control system.

Tenth embodiment：As shown in Figure 23,24,25, the present embodiment is with the difference of first embodiment：On first pedestal 9 Without the first block 10；Second wire spool 410 is provided with the second projection 411；Latch control unit 300 also includes blocking unit 370.

Blocking unit 370 includes the second block 371, stopper spring 372, blocking unit housing 373 and control arm 374；Resistance Gear unit housings 373 are fixed on the first pedestal 9；Second block 371 and stopper spring 372 are arranged on blocking unit housing 373 It is interior；One end of second block 371 is provided with inclined-plane 3711；Withstand the second block 371, other end and withstand in one end of stopper spring 372 Blocking unit housing 373, the elastic force of stopper spring 372 can promote the second block 371 near the direction of the second wire spool 410 Motion；Control arm 374 is arranged on the first pedestal 9 by rotating shaft 375, and control arm 374 375 can be rotated around the shaft, control arm 374 are connected with the second block 371；First projection 311 of the first wire spool 310 can touch control arm 374；Second wire spool 410 the second projection 411 can touch the second block 371.

As shown in Figure 25 (b), when the second wire spool 410 is rotated forward, the second projection 411 touches the second block from top 371, due to contacted with the second projection 411 be the second block 371 inclined-plane 3711, the second block 371 is in the second projection 411 To being moved in blocking unit housing 373 under pressure effect, so now the second block 371 will not stop the second wire spool 410 Rotate forward；As shown in Figure 25 (c), when the second wire spool 410 is rotated backward, the second projection 411 touches second gear from below Block 371, due to contacted with the second projection 411 be the second block 371 plane, the second block 371 will not be in the second projection 411 The lower movement of pressure effect, so now the second block 371 can make the second wire spool 410 stop rotating backward.

In the present embodiment, the process that telescopic tube is changed into contraction state from deployed condition is identical with first embodiment, therefore Do not remake repeat specification.

When telescopic tube to be made is changed into deployed condition from contraction state, the button that triple-pole double throw formula switchs SA2 is pressed, made Motor M is rotated backward, and motor M drives differential mechanism main wheel 110 to rotate backward by gear reduction unit 210, there is following two situations：

The moment of resistance that (1) second axle shaft gear 130 is subject to is more than or equal to the moment of resistance that the first axle shaft gear 120 is subject to：

Differential mechanism main wheel 110 can drive the first axle shaft gear 120 to rotate backward, and the first axle shaft gear 120 drives first Wire spool 310 is rotated backward, so as to loosen the first bracing wire 320, when the first projection 311 on the first wire spool 310 touches control During arm 374, control arm 374 375 is rotated around the shaft under the pressure effect of the first projection 311, while control arm 374 drives second Block 371 is moved to away from the direction of the second wire spool 410, so that the 371 pairs of stops of the second projection 411 of the second block are released, directly Stop in the presence of stopper spring 372 rotating backward to the first axle shaft gear 120, now the first bracing wire 320 is in lax shape State；Meanwhile, differential mechanism main wheel 110 drives the second axle shaft gear 130 to rotate backward, and the second axle shaft gear 130 drives the second coiling Disk 410 is rotated backward, and the second wire spool 410 drives inner tube 2 to move upwards, and inner tube location hole 8 and outer tube are made when inner tube 2 is moved to Because the first bracing wire 320 being connected with latch 3 is in relaxed state during 6 pairs of correspondences of location hole, therefore latch 3 is in latch spring 4 In the lower insertion inner tube location hole 8 of effect, while the second limited block 13 being connected with latch 3 touches touching for the second microswitch SQ2 Hair mechanism, the second microswitch SQ2 produces switching action, its public terminal is disconnected with normally closed terminal, now the second relay The coil blackout of K2, the second relay public terminal k21 and the second relay normally open terminal k22 disconnect, motor M power-off stallings, Telescopic tube is in deployed condition.

The moment of resistance that (2) second axle shaft gears 130 are subject to is less than the moment of resistance that the first axle shaft gear 120 is subject to：

Just when starting, differential mechanism main wheel 110 can only drive the second axle shaft gear 130 to rotate backward and can not drive the first half Shaft gear 120 is rotated backward；Second axle shaft gear 130 drives the second wire spool 410 to rotate backward, and the second wire spool 410 drives Inner tube 2 is moved upwards, when the second projection 411 on the second wire spool 410 touches the second block 371 from below, the second block 371 the second wire spools 410 of prevention are rotated, so that the second axle shaft gear 130 stops rotating backward；Second axle shaft gear 130 stops After only rotating backward, differential mechanism main wheel 110 drives the first axle shaft gear 120 to rotate backward under the driving of motor M, and the first half Shaft gear 120 drives the first wire spool 310 to rotate backward, so as to loosen the first bracing wire 320, when the on the first wire spool 310 During the touching control arm 374 of one projection 311, control arm 374 375 is rotated around the shaft under the pressure effect of the first projection 311, while Control arm 374 drives the second block 371 to be moved to away from the direction of the second wire spool 410, so as to release the second block 371 pairs second The stop of projection 411, now differential mechanism main wheel 110 can continue drive the second axle shaft gear 130 rotate backward, and simultaneously because The moment of resistance that second axle shaft gear 130 is subject to is less than the moment of resistance that the first axle shaft gear 120 is subject to, therefore the first axle shaft gear 120 stop rotating backward, and the first bracing wire 320 is in relaxed state；Second axle shaft gear 130 continues in differential mechanism main wheel 110 Rotated backward under drive, the second axle shaft gear 130 drives the second wire spool 410 to rotate backward, and the second wire spool 410 drives inner tube 2 motions upwards, when inner tube 2 is moved to makes inner tube location hole 8 and outer tube location hole 6 pairs corresponding due to be connected with latch 3 first During bracing wire 320 is in relaxed state, therefore latch 3 inserts inner tube location hole 8 in the presence of the latch spring 4, at the same with latch 3 Connected the second limited block 13 touches the trigger mechanism of the second microswitch SQ2, and the second microswitch SQ2 produces switching action, Its public terminal is disconnected with normally closed terminal, now the coil blackout of the second relay K2, the second relay public terminal k21 with Second relay normally open terminal k22 disconnects, and motor M power-off stallings, telescopic tube is in deployed condition.

11st embodiment：As shown in Figure 26,27,28, the present embodiment is with the difference of first embodiment：First wire spool Without the first projection 311 on 310；Without the first block 10 on first pedestal 9；Without the first limited block 12 in inner tube 2；Inner tube 2 is provided with auxiliary Help location hole 22；Latch control unit 300 also includes auxiliary unit 380.

Auxiliary unit 380 includes auxiliary bolt 381, secondary spring 382 and auxiliary stay 383；Auxiliary bolt 381 and auxiliary Spring 382 is arranged on the first pedestal 9；Auxiliary bolt 381 may be inserted into auxiliary positioning hole 22；One end of secondary spring 382 Withstand the auxiliary bolt 381, other end and withstand the first pedestal 9, the elastic force of secondary spring 382 can promote auxiliary bolt 381 to leaning on The direction motion of nearly inner tube 2；One end of auxiliary stay 383 is fixed on the first wire spool 310, the other end and auxiliary bolt 381 It is connected；Auxiliary bolt 381 is provided with auxiliary lug 3811, and auxiliary lug 3811 can touch the triggering of the first microswitch SQ1 Mechanism, makes the first microswitch SQ1 produce switching action.

The operation principle of the present embodiment is as follows：

The button that triple-pole double throw formula switchs SA2 is pressed, motor M is rotated forward, motor M is driven by gear reduction unit 210 Dynamic differential mechanism main wheel 110 is rotated forward；As shown in Figure 29 (a), when just starting, latch 3 is interspersed in outer tube location hole 6 and inner tube is fixed In the hole 8 of position, inner tube 2 can not be moved with respect to outer tube 1, because the second axle shaft gear 130 is fixedly connected with the second wire spool 410, the Two wire spools 410 are connected by the second bracing wire 420 and the 3rd bracing wire 430 with inner tube 2, therefore the second axle shaft gear 130 can not turn Dynamic, differential mechanism main wheel 110 can only drive the first axle shaft gear 120 to rotate forward；First axle shaft gear 120 drives the first wire spool 310 rotate forward, and the first wire spool 310 pulls latch 3 by the first bracing wire 320, latch 3 is transported to the direction away from inner tube 2 It is dynamic, while the first wire spool 310 loosens auxiliary stay 383；As shown in Figure 29 (b), after latch 3 moves a segment distance, latch 3 Exited from inner tube location hole 8, due to the stop without latch 3, inner tube 2 can be moved with respect to outer tube 1, now the second semiaxis Gear 130 can be rotated forward under the drive of differential mechanism main wheel 110, and the second axle shaft gear 130 is driving the second wire spool 410 just To rotation, the second wire spool 410 drives inner tube 2 to move downward, and telescopic tube shortens；Band of the latch 3 in the first axle shaft gear 120 Moved to away from the direction of inner tube 2 under dynamic, until the first axle shaft gear 120 stops rotating forward in the presence of latch spring 4, this When auxiliary stay 383 be in relaxed state；As shown in Figure 29 (c) and 29 (d), inner tube 2 is under the drive of the second axle shaft gear 130 Move downward, when inner tube 2 is moved downwardly to make auxiliary positioning hole 22 and auxiliary bolt 381 pairs corresponding due to auxiliary bolt 381 Connected auxiliary stay 383 is in relaxed state, therefore auxiliary bolt 381 is inserted auxiliary in the presence of secondary spring 382 and determined In the hole 22 of position, while the auxiliary lug 3811 in auxiliary bolt 381 touches the trigger mechanism of the first microswitch SQ1, first is micro- Dynamic switch SQ1 produces switching action, its public terminal is disconnected with normally closed terminal, now the coil blackout of the first relay K1, First relay public terminal k11 and the first relay normally open terminal k12 is disconnected, motor M power-off stallings, and telescopic tube is in be received Contracting state.

The button that triple-pole double throw formula switchs SA2 is pressed, motor M is rotated backward, motor M is driven by gear reduction unit 210 Dynamic differential mechanism main wheel 110 is rotated backward, and such as shown in Figure 30 (a), when just starting, the auxiliary of inner tube 2 is inserted in due to auxiliary bolt 381 In location hole 22, inner tube 2 can not be moved with respect to outer tube 1, therefore the second axle shaft gear 130 of differential mechanism can not be rotated, differential mechanism Main wheel 110 can only drive the first axle shaft gear 120 to rotate backward；First axle shaft gear 120 drives the first wire spool 310 reversely to turn Dynamic, the first wire spool 310 pulls auxiliary bolt 381 by auxiliary stay 383, auxiliary bolt 381 is transported to away from the direction of inner tube 2 It is dynamic, while the first wire spool 310 loosens the first bracing wire 320；As shown in Figure 30 (b), when auxiliary bolt 381 moves a segment distance Afterwards, auxiliary bolt 381 is exited from the auxiliary positioning hole 22 of inner tube 2, and due to the stop without auxiliary bolt 381, inner tube 2 can Moved with relative outer tube 1, now the second axle shaft gear 130 can be rotated backward under the drive of differential mechanism main wheel 110, the second half Shaft gear 130 drives the second wire spool 410 to rotate backward, and the second wire spool 410 drives inner tube 2 to move upwards, and telescopic tube is stretched It is long；Auxiliary bolt 381 is moved under the drive of the first axle shaft gear 120 to away from the direction of inner tube 2, until the first axle shaft gear 120 stop rotating backward in the presence of secondary spring 382, and now the first bracing wire 320 is in relaxed state；Such as Figure 30 (c) and Shown in 30 (d), when inner tube 2 is moved upward to makes inner tube location hole 8 and outer tube location hole 6 pairs corresponding due to being connected with latch 3 First bracing wire 320 is in relaxed state, therefore latch 3 is in insertion inner tube location hole 8 in the presence of latch spring 4, while with Connected the second limited block 13 of latch 3 touches the trigger mechanism of the second microswitch SQ2, and the second microswitch SQ2 produces switching Action, makes its public terminal be disconnected with normally closed terminal, now the coil blackout of the second relay K2, the second relay public terminal K21 and the second relay normally open terminal k22 disconnects, and motor M power-off stallings, telescopic tube is in deployed condition.

12nd embodiment：As shown in figure 31, to be inner tube 2 recessed without vertically for the present embodiment and the difference of first embodiment Structure 21 is fallen into, has space between the inner surface of outer tube 1 and the outer surface of inner tube 2, first is provided between outer tube 1 and inner tube 2 The bushing 72 of bushing 71 and second.

First bushing 71 is fixed by screws on outer tube 1, and the outer surface of the first bushing 71 matches with the inner surface of outer tube 1 Close, the inner surface of the first bushing 71 is engaged with the outer surface of inner tube 2；First bushing 71 be provided with axially through the first bushing Fluting 73；Second bushing 72 is fixed by screws in inner tube 2, and the outer surface of the second bushing 72 matches with the inner surface of outer tube 1 Close, the inner surface of the second bushing 72 is engaged with the outer surface of inner tube 2；Second bushing 72 be provided with axially through the second bushing Fluting 74；Second bracing wire 420 of extension and contraction control unit 400 and the 3rd bracing wire 430 can be from the linings of the first bushing fluting 73 and second Passed through in set fluting 74.

13rd embodiment：As shown in figure 32, the difference of the present embodiment and first embodiment be eliminate stop pin 61 and Anti- tube 62, inner tube 2 is provided with groove 81 vertically, and outer tube is provided with flange 82 vertically, groove 81 and the outer tube of inner tube Flange 82 is engaged, so as to prevent inner tube 2 from being rotated relative to outer tube 1.The other structures of the present embodiment with first embodiment phase Together, repeat specification therefore is not remake.

14th embodiment：As shown in figure 33, the difference of the present embodiment and the 13rd embodiment is inner tube 2 without vertically Sunk structure 21, the second bracing wire 420 of extension and contraction control unit 400 and the 3rd bracing wire 430 are located at the outside of outer tube 1, the 3rd bracing wire 430 Upper end with inner tube 2 is connected.The other structures of the present embodiment are identical with the 13rd embodiment, therefore do not remake repeat specification.

In the present embodiment, telescopic tube from deployed condition be changed into contraction state process and from contraction state be changed into exhibition The process of open state is identical with the 13rd embodiment, therefore does not remake repeat specification.

15th embodiment：As shown in Figure 34 (a), the present embodiment is to eliminate stop pin 61 with the difference of first embodiment With anti-tube 62, outer tube 1 and inner tube 2 are all elliptical tube.Due to outer tube 1 and inner tube 2 all be elliptical tube, the inner surface of outer tube 1 with The outer surface of inner tube 2 is engaged, therefore inner tube 2 can not be rotated relative to outer tube 1.The other structures of the present embodiment are real with first Apply example identical, therefore do not remake repeat specification.

16th embodiment：As shown in Figure 34 (b), the present embodiment is to eliminate stop pin 61 with the difference of first embodiment With anti-tube 62, outer tube 1 and inner tube 2 are all rectangular tube.Due to outer tube 1 and inner tube 2 all be rectangular tube, the inner surface of outer tube 1 with The outer surface of inner tube 2 is engaged, therefore inner tube 2 can not be rotated relative to outer tube 1.The other structures of the present embodiment are real with first Apply example identical, therefore do not remake repeat specification.

It should be noted that except the shape described in the 15th embodiment and the 16th embodiment, outer tube 1 and inner tube 2 Can also be the non-round of other shapes, can equally prevent inner tube 2 from being rotated relative to outer tube 1.

The preferred embodiments of the present invention are the foregoing is only, is not intended to limit the invention, for the skill of this area For art personnel, the present invention can have various modifications and variations.It is all within principle of the invention and spirit, that is made any repaiies Change, equivalent, improvement etc., should be included within the scope of the present invention.

Claims

1. a kind of control device of telescopic tube, including outer tube (1), inner tube (2), latch (3) and latch spring (4)；It is described outer Pipe (1) is enclosed within said inner tube (2) outside, and the outer tube (1) is provided with plug housing (5) and is provided with outer tube in the plug housing (5) Location hole (6), is fixed with latch flap (7) on the plug housing (5), the latch (3) and the latch spring (4) are positioned at institute State in outer tube location hole (6)；Said inner tube (2) is provided with inner tube location hole (8), and the latch (3) may be inserted into said inner tube and determine In position hole (8)；One end of the latch spring (4) is withstood the latch (3), the other end and withstands the latch flap (7), described The elastic force of latch spring (4) can promote the latch (3) to be moved to the direction near said inner tube (2)；It is characterized in that：

Also include differential mechanism (100), driver element (200), latch control unit (300) and extension and contraction control unit (400)；

The differential mechanism (100) includes differential mechanism main wheel (110), the first axle shaft gear (120), the second axle shaft gear (130), OK Star gear (140,150) and planetary gear shaft (160)；The planetary gear (140,150) is by the planetary gear shaft (160) On the differential mechanism main wheel (110), the planetary gear (140,150) can turn around the planetary gear shaft (160) Dynamic, the side of the planetary gear (140,150) is meshed with first axle shaft gear (120), the planetary gear (140, 150) opposite side is meshed with second axle shaft gear (130)；Axis, described first of the differential mechanism main wheel (110) The axis of the axis of axle shaft gear (120) and second axle shaft gear (130) is located along the same line；On the outer tube (1) The first pedestal (9) is fixed with, the differential mechanism (100) is on first pedestal (9)；

The driver element (200) is connected with the differential mechanism main wheel (110), and the driver element (200) drives the differential Device main wheel (110) is rotated；

The latch control unit (300) and the latch (3), the first axle shaft gear (120) phase of the differential mechanism (100) Even；First axle shaft gear (120) controls the motion of the latch (3) by the latch control unit (300)；

The extension and contraction control unit (400) includes the second wire spool (410), the second bracing wire (420) and the 3rd bracing wire (430)；Institute State the second wire spool (410) to be fixedly connected with second axle shaft gear (130), one end of second bracing wire (420) is fixed On second wire spool (410), the other end be connected with said inner tube (2), one end of the 3rd bracing wire (430) is fixed on On second wire spool (410), the other end is connected with said inner tube (2).

2. the control device of telescopic tube according to claim 1, it is characterised in that：

The differential mechanism main wheel (110) is gear；

The driver element (200) includes motor (M), gear reduction unit (210) and control circuit unit (220)；

The output shaft of the motor (M) is connected with the gear reduction unit (210), the output shaft of the gear reduction unit (210) Output gear (211) is provided with, the output gear (211) is meshed with the differential mechanism main wheel (110)；The motor (M) It is fixed on the outer tube (1) by the second pedestal (11) with the gear reduction unit (210)；

Control circuit unit (220) electrically connects with the motor (M), and control circuit unit (220) controls the electricity The rotation of machine (M).

3. the control device of telescopic tube according to claim 2, it is characterised in that：Control circuit unit (220) Including the first microswitch (SQ1), the second microswitch (SQ2), the first relay (K1), the second relay (K2), three extremely double Throwing formula switchs (SA2) and battery (G)；

First relay (K1) has one group of terminal, i.e. the first relay public terminal (k11) and the first relay normally open end Sub (k12)；Second relay (K2) has one group of terminal, i.e. the second relay public terminal (k21) and the second relay normal Beginning (k22)；Triple-pole double throw formula switch (SA2) is non-automatically reset switch；The triple-pole double throw formula switchs (SA2) There are three groups of terminals, i.e. the first pole the first terminal (a1), the first pole Second terminal (a2) and the first pole public terminal (a0), the second pole The first terminal (b1), the second pole Second terminal (b2) and the second pole public terminal (b0), the 3rd pole the first terminal (c1), the 3rd pole Second terminal (c2) and the 3rd pole public terminal (c0)；First microswitch (SQ1) is arranged on first pedestal (9) On；Second microswitch (SQ2) is arranged on second pedestal (11), is connected with second on the latch (3) spacing Block (13), second limited block (13) can touch the trigger mechanism of second microswitch (SQ2), make described second micro- Dynamic switch (SQ2) produces switching action；

The triple-pole double throw formula switchs the first pole the first terminal (a1), the second pole Second terminal (b2) and the battery of (SA2) (G) positive pole electrical connection；First pole Second terminal (a2), the second pole the first terminal of triple-pole double throw formula switch (SA2) (b1) negative pole with the battery (G) is electrically connected；The normally closed terminal of first microswitch (SQ1) and the triple-pole double throw formula Switch the first pole public terminal (a0) electrical connection of (SA2)；The public terminal and described first of first microswitch (SQ1) One terminal electrical connection of the coil of relay (K1)；Another terminal and described three of the coil of first relay (K1) 3rd pole the first terminal (c1) electrical connection of pole double-throw formula switch (SA2)；The normally closed terminal of second microswitch (SQ2) with First pole public terminal (a0) electrical connection of triple-pole double throw formula switch (SA2)；Second microswitch (SQ2) it is public Terminal is electrically connected with a terminal of the coil of second relay (K2)；The coil of second relay (K2) it is another The 3rd pole Second terminal (c2) that individual terminal switchs (SA2) with the triple-pole double throw formula is electrically connected；The first end of the motor (M) The first pole public terminal (a0) that sub (m1) switchs (SA2) with the triple-pole double throw formula is electrically connected；Second end of the motor (M) Sub (m2) is electrically connected with the first relay normally open terminal (k12)；The first relay public terminal (k11) and described three 3rd pole public terminal (c0) electrical connection of pole double-throw formula switch (SA2)；The 3rd of triple-pole double throw formula switch (SA2) is extremely public The second pole public terminal (b0) that terminal (c0) switchs (SA2) with the triple-pole double throw formula altogether is electrically connected；Second relay Normally opened terminal (k22) electrically connects with the first relay normally open terminal (k12)；The second relay public terminal (k21) Electrically connected with the first relay public terminal (k11).

4. the control device of telescopic tube according to claim 2, it is characterised in that：Control circuit unit (220) Including the first microswitch (SQ1), the second microswitch (SQ2), the first diode (V1), the second diode (V2), bipolar double Throwing formula switchs (SA1) and battery (G)；

DPDT formula switch (SA1) is non-automatically reset switch；DPDT formula switch (SA1) has two groups of ends Son, i.e. the first pole the first terminal (a1), the first pole Second terminal (a2) and the first pole public terminal (a0), the second pole the first terminal (b1), the second pole Second terminal (b2) and the second pole public terminal (b0)；First microswitch (SQ1) is arranged on described the On one pedestal (9)；Second microswitch (SQ2) is arranged on second pedestal (11), is connected with the latch (3) Second limited block (13), second limited block (13) can touch the trigger mechanism of second microswitch (SQ2), make institute State the second microswitch (SQ2) and produce switching action；

The DPDT formula switchs the first pole the first terminal (a1), the second pole Second terminal (b2) and the battery of (SA1) (G) positive pole electrical connection；First pole Second terminal (a2), the second pole the first terminal of DPDT formula switch (SA1) (b1) negative pole with the battery (G) is electrically connected；First pole public terminal (a0) of DPDT formula switch (SA1) and institute State the positive pole electrical connection of the first diode (V1)；The negative pole of first diode (V1) and first microswitch (SQ1) Normally closed terminal electrical connection；The public terminal of first microswitch (SQ1) is electric with the first terminal (m1) of the motor (M) Connection；The Second terminal (m2) of the motor (M) switchs the second pole public terminal (b0) electricity of (SA1) with the DPDT formula Connection；The negative pole of second diode (V2) is electrically connected with the positive pole of first diode (V1)；Second diode (V2) positive pole is electrically connected with the normally closed terminal of second microswitch (SQ2)；Second microswitch (SQ2) it is public Terminal is electrically connected with the public terminal of first microswitch (SQ1).

5. the control device of telescopic tube according to claim 2, it is characterised in that：Control circuit unit (220) Pressed including the first microswitch (SQ1), the second microswitch (SQ2), the 3rd relay (K3), the 4th relay (K4), first Button switch (SB1), the second button switch (SB2) and battery (G)；

3rd relay (K3) has three groups of terminals, i.e. the 3rd the first public terminal of relay (k31) and the 3rd relay One normally opened terminal (k32), the 3rd the second public terminal of relay (k33) and the 3rd the second normally opened terminal (k34) of relay, the 3rd The public terminal (k35) of relay the 3rd and the normally opened terminal (k36) of the 3rd relay the 3rd；4th relay (K4) has three groups Terminal, i.e. the 4th the first public terminal of relay (k41) and the 4th the first normally opened terminal (k42) of relay, the 4th relay Two public terminals (k43) and the 4th the second normally opened terminal (k44) of relay, the public terminal (k45) of the 4th relay the 3rd and The normally opened terminal (k46) of four relay the 3rd；First button switch (SB1) and second button switch (SB2) are all certainly The dynamic normally open push button switch for resetting；First microswitch (SQ1) is arranged on first pedestal (9)；Described second is micro- Dynamic switch (SQ2) is arranged on second pedestal (11), is connected with the second limited block (13) on the latch (3), and described the Two limited blocks (13) can touch the trigger mechanism of second microswitch (SQ2), produce second microswitch (SQ2) Raw switching action；

One terminal of first button switch (SB1) is electrically connected with the normally opened terminal (k36) of the 3rd relay the 3rd；Institute Another terminal for stating the first button switch (SB1) is electrically connected with the public terminal (k35) of the 3rd relay the 3rd；Described The normally opened terminal (k36) of three relay the 3rd electrically connects with the positive pole of the battery (G)；The public terminal of 3rd relay the 3rd (k35) the normally closed terminal with first microswitch (SQ1) is electrically connected；The public terminal of first microswitch (SQ1) A terminal with the coil of the 3rd relay (K3) is electrically connected；Another end of the coil of the 3rd relay (K3) The sub negative pole with the battery (G) is electrically connected；One terminal of second button switch (SB2) and the 4th relay Three normally opened terminal (k46) electrical connections；Another terminal of second button switch (SB2) is public with the 4th relay the 3rd Terminal (k45) electrical connection altogether；The normally opened terminal (k46) of 4th relay the 3rd electrically connects with the positive pole of the battery (G)；Institute The public terminal (k45) of the 4th relay the 3rd is stated to be electrically connected with the normally closed terminal of second microswitch (SQ2)；Described second The public terminal of microswitch (SQ2) is electrically connected with a terminal of the coil of the 4th relay (K4)；Described 4th after Another terminal of the coil of electrical equipment (K4) is electrically connected with the negative pole of the battery (G)；The normally opened end of 3rd relay first Sub (k32) is electrically connected with the positive pole of the battery (G)；The first public terminal of 3rd relay (k31) and the motor (M) The first terminal (m1) electrical connection；The Second terminal (m2) of the motor (M) and the second public terminal of the 3rd relay (k33) electrically connect；The normally opened terminal (k34) of 3rd relay second electrically connects with the negative pole of the battery (G)；Described 4th The first normally opened terminal of relay (k42) is electrically connected with the normally opened terminal (k32) of the 3rd relay first；4th relay First public terminal (k41) is electrically connected with the second public terminal of the 3rd relay (k33)；4th relay second is public Terminal (k43) is electrically connected with the first public terminal of the 3rd relay (k31) altogether；The normally opened terminal of 4th relay second (k44) electrically connected with the normally opened terminal (k34) of the 3rd relay second.

6. the control device of telescopic tube according to claim 1, it is characterised in that：

The differential mechanism main wheel (110) is wire spool；

The driver element (200) is including driving wire spool (230), handle (240), the 4th bracing wire (250) and the 5th bracing wire (260)；

Driving wire spool (230) is described to drive wire spool (230) and the differential mechanism master on the outer tube (1) Wheel (110) is connected by the 4th bracing wire (250) with the 5th bracing wire (260), and the handle (240) is fixed on the drive On dynamic wire spool (230).

7. the control device of telescopic tube according to claim 1, it is characterised in that：

The latch control unit (300) includes the first wire spool (310) and the first bracing wire (320)；First wire spool (310) it is fixedly connected with first axle shaft gear (120), first wire spool (310) is provided with the first projection (311), First pedestal (9) is provided with the first block (10), and first projection (311) can touch first block (10)； One end of first bracing wire (320) is fixed on first wire spool (310), the other end is connected with the latch (3).

8. the control device of telescopic tube according to claim 7, it is characterised in that：

The latch control unit (300) also includes spacing bracing wire (360)；One end of the spacing bracing wire (360) and described One pedestal (9) is connected, the other end is connected with said inner tube (2)；Make the spacing bracing wire when said inner tube (2) is moved upward to (360) when stretching completely, said inner tube (2) can not be continued up due to being limited by the spacing bracing wire (360), Now the position where said inner tube (2) is exactly said inner tube (2) the reached extreme higher position of motion upwards；The spacing bracing wire (360) length should make when said inner tube (2) moves upward to extreme higher position, the inner tube location hole (8) of said inner tube (2) with Outer tube location hole (6) correspondence of the outer tube (1).

9. the control device of telescopic tube according to claim 1, it is characterised in that：

The latch control unit (300) includes the first wire spool (310), the first bracing wire (320) and blocking unit (370)；Institute State the first wire spool (310) to be fixedly connected with first axle shaft gear (120), first wire spool (310) is provided with One projection (311)；One end of first bracing wire (320) is fixed on first wire spool (310), the other end is inserted with described Pin (3) is connected；The blocking unit (370) includes the second block (371), stopper spring (372), blocking unit housing (373) With control arm (374)；The blocking unit housing (373) is fixed on first pedestal (9)；Second block (371) With the stopper spring (372) in the blocking unit housing (373)；One end of second block (371) is provided with Inclined-plane (3711)；Withstand second block (371), the other end and withstand the stop list in one end of the stopper spring (372) First housing (373), the elastic force of the stopper spring (372) can promote second block (371) near described second around The direction motion of drum (410)；The control arm (374) by rotating shaft (375) on first pedestal (9), it is described Control arm (374) can be rotated around the rotating shaft (375), and the control arm (374) is connected with second block (371)；Institute The first projection (311) for stating the first wire spool (310) can touch the control arm (374)；The extension and contraction control unit (400) The second wire spool (410) be provided with the second projection (411), second projection (411) can touch second block (371)。

10. the control device of telescopic tube according to claim 1, it is characterised in that：

The latch control unit (300) includes the first wire spool (310), the first bracing wire (320) and auxiliary unit (380)；Institute The first wire spool (310) is stated to be fixedly connected with first axle shaft gear (120)；One end of first bracing wire (320) is fixed On first wire spool (310), the other end is connected with the latch (3)；The auxiliary unit (380) is including auxiliary bolt (381), secondary spring (382) and auxiliary stay (383)；The auxiliary bolt (381) and the secondary spring (382) are arranged on On first pedestal (9)；Said inner tube (2) is provided with auxiliary positioning hole (22), and the auxiliary bolt (381) may be inserted into described In auxiliary positioning hole (22)；One end of the secondary spring (382) withstand the auxiliary bolt (381), the other end withstand it is described First pedestal (9), the elastic force of the secondary spring (382) can promote the auxiliary bolt (381) near said inner tube (2) Direction motion；One end of the auxiliary stay (383) is fixed on first wire spool (310), the other end is auxiliary with described Latch (381) is helped to be connected.