CN206006426U - Lifting easily sets the dais of Self-protecting display - Google Patents

Abstract

The utility model is related to dais.A kind of lifting easily sets the dais of Self-protecting display, including feet, drawer frame and the desktop being connected on drawer frame, desktop is provided with display, display is provided with binding post, binding post includes insulator and is arranged at the wiring Copper Foil of insulator, wiring Copper Foil is electrically connected with the coil of motor, wiring Copper Foil is provided with and penetrates into the internal wiring hole of insulation, sleeve is slidably connected in wiring hole, sleeve includes conductive segment of the insulating segment being distributed along sleeve axial direction together with same wiring Copper Foil abutting, insulation be provided with vivo the air cavity heated by the heat produced by wiring Copper Foil and by the gas expansion in air cavity be driven for driving conductive segment to respond cylinder with the overload that wiring Copper Foil staggers, drawer frame is provided with suspension ring.With automatically powering off after lifting convenient, display overload, the utility model solves the problems, such as that dais can not meet the demand of multimedia teaching.

Description

Lifting easily sets the dais of Self-protecting display

Technical field

The utility model is related to dais, more particularly to a kind of lifting easily sets the dais of Self-protecting display.

Background technology

The structure of desk has multiple.It is in the 2012205452834, patent document at entitled " dais " in China Patent No. A kind of desk is disclosed.Existing dais has the following disadvantages：It is not provided with display, it is impossible to enough meet multimedia teaching Demand；The study stationery such as pen that can not be to storage on the table carries out Horizontal limiting, stationery etc., and easily level is slided and is dropped； Can not easily according to the height needed to adjust desktop of the classmate of different heights.

Utility model content

The lifting that the utility model can be automatically powered off after providing a kind of display overload easily sets Self-protecting and shows Show the dais of device, solve the problems, such as that existing dais can not meet the demand of multimedia teaching.

Above technical problem is solved by following technical proposal：A kind of lifting easily sets Self-protecting display Dais, including feet, is connected to the drawer frame and the desktop being connected on drawer frame of feet upper end, it is characterised in that the table Face is provided with display, and the display is provided with binding post, and the binding post includes insulator and is arranged at insulator Wiring Copper Foil, the wiring Copper Foil are electrically connected with the coil of motor, and the wiring Copper Foil is provided with and penetrates into the insulation Internal wiring hole, slidably connects sleeve in the wiring hole, the sleeve is included along the exhausted of sleeve axial direction distribution Conductive segment of the rim segment together with same wiring Copper Foil abutting, the insulation is provided with vivo to be carried out by the heat that wiring Copper Foil is produced The air cavity of heating and by the gas expansion in air cavity be driven for driving conductive segment to stagger with the wiring Copper Foil Overload response cylinder, the drawer frame is provided with suspension ring, and the suspension ring are stainless steel structure, the inner peripheral surface of the suspension ring be provided with to Few two anti-slop serrations, the anti-slop serrations are detachably connected with the suspension ring, bearing of trend of the anti-slop serrations along suspension ring Distribution.Display is set on the table, disclosure satisfy that the demand of multimedia teaching.To during display wiring, power line is inserted The electrical connection with sleeve is realized in sleeve, and it is conductance to link together with wiring Copper Foil for conductive segment during normal condition Logical.Circuit can produce temperature rise when the load, and the gas in air cavity can produce expansion, overload response gas during the gas expansion of air cavity Cylinder generation action and drive sleeve to slide in the wiring hole, then transship when temperature rise is to design temperature and respond air cylinder driven to connecing Line set slides into conductive segment and staggers with wiring Copper Foil, so as to realize power-off；After Failure elimination, temperature can decline, and temperature drop is then Contraction of gas in air cavity, the result of contraction be so that sleeve slides towards the anti-direction of same temperature rise phase in wiring hole, when When temperature returns to normal value then conductive segment link together with wiring Copper Foil again, so as to realizing automatically reseting.Lifting is originally During utility model, being hooked in suspension ring by suspension hook is carried out.Anti-slop serrations are set in the inner peripheral surface of suspension ring, anti-skidding effect can be played, So that being not easy to slide during lifting.Anti-slop serrations are detachably connected between suspension ring, selective installation can be needed to prevent according to using Slip teeth, so that the utility model disclosure satisfy that different use needs.

Preferably, the overload response cylinder includes overload response cylinder block and overload response cylinder piston, described The overload is responded cylinder block and is divided into closing chamber and open cavity by overload response cylinder piston, and the closing chamber is with the gas Chamber connects, and the overload response cylinder piston is linked together with the sleeve by connecting rod.Simple structure.Making side Just.

Preferably, diameter parallel of the axis of the overload response cylinder piston with the adapter sleeve.Can improve Carry reliability when response air cylinder driven sleeve is moved and further improve structural compactness.

Preferably, the wiring hole is vertically extending, the wiring Copper Foil is located at the lower end of the wiring hole, institute Insulating segment is stated positioned at the lower section of the conductive segment, the insulating segment is sealed connected together with the wiring hole, the wiring hole Interior filled with conduction liquid.Multiple action can be avoided to produce electrical contact bad phenomenon after producing abrasion and produce when preventing action Raw sparking.

Preferably, the insulating segment is provided with the exterior seal ring that is sealed connected together insulating segment with wiring hole and is used for The inner seal ring that insulating segment is sealed connected together with power line.Can both ensure that sleeve is reliably sealed with wiring Copper Foil Link together, and resistance when moving can be reduced.

Preferably, the inner peripheral surface of the insulating segment is provided with support ball.Resistance when moving can further be reduced, with Improve sensitivity during dynamic overload response.

Preferably, the inner peripheral surface of the conductive segment is provided with inner support shell fragment, the periphery that radially-inwardly arches upward along conductive segment Face is provided with the outer support shell fragment radially outward arched upward along conductive segment.Reliability during relay contacts can either be improved, can be dropped again Resistance when low mobile is improving response sensitivity.

Preferably, the desktop is provided with support board and link gear, four sides all around of the support board are designed with Gusset plate, described gusset plate one end is by hinge with the desktop is hinged, the other end passes through the same institute of the link gear State support board to link together, the support board is supported in above the drawer frame by support spring.Stationery is put during use Put on the support board of desktop, under the weight effect of stationery, support board declines and drives support spring to shrink, gusset plate to be cutting with scissors Chain is rotated down for axle so that desktop formed with support board as bottom surface gusset plate for the pit of side wall by spacing for stationery live And prevent stationery from sliding in the horizontal direction and dropping.When the setting of gusset plate enables to deposit less stationery on desktop, text Tool will not drop through the gap between support board and fence.

Preferably, the link gear includes that one end is articulated with the inserted link at the support board edge and is arranged at the side The jack of plate edge, the other end of the inserted link are located in the jack.Gusset plate can be avoided to be perpendicularly oriented to stationery.Side Coaming plate is perpendicularly oriented to be easily caused stationery surface damage during stationery.

Preferably, the upper surface of the support board is provided with specular layer.Be shelved on support board when stationery one end, the other end Can swimmingly slide into when being shelved in gusset plate and be completely supported on support board so that when stationery is shelved on support board Convenience more preferable（If being not provided with specular layer, need to be placed stationery alignment support board when placing stationery, otherwise may be used The phenomenon generation that stationery can not be slided on support board can be produced）.

Preferably, the lower surface of the specular layer is provided with vertically extending connecting pole, under the connecting pole End face is provided with screwed hole, and the support board is provided with through hole, and the specular layer is connected through the through hole rear thread by bolt It is fixed together with the support board in the screwed hole.When specular layer weares and teares and causes rough surface, can be easily Remove specular layer to be changed.

Preferably, the feet includes that hypomere and hypomere are threadedly connected to the epimere of hypomere upper end, the epimere is provided with Tray and the spindle nose on tray, the spindle nose penetrate rotatably the drawer frame, and the drawer frame is shelved on the support On block, the upper end of the spindle nose is provided with handle.When need adjust desktop height when, by rotate handle cause epimere relative to Hypomere is rotated and the epimere that renames is screwed into the depth of hypomere to change the height of feet.

Preferably, the feet also includes that motor and powershift mechanism, the motor include motor casing and motor shaft, The motor casing is fixed together with the handle, and the spindle nose is connected to one end of the motor shaft, the powershift machine Structure includes the switch for starting the motor, the pressing lever for driving the switch, the slip that motor shaft links together with handle The insertion spring that the latch and driving latch being connected in handle is inserted in motor shaft, the latch are located at the switch and press Between depression bar, the latch is provided with avoidance hole, and the avoidance hole is provided with The driving inclined-plane of motor shaft.Can either manually also can electric rotary spindle nose lifting feet.When by Motor drive pull bar turn When dynamic, pressing lever pressed, is pressed driving inclined-plane and latch is translated and same motor shaft while pressing lever direction switch translation Depart from, pressing lever move to through avoid hole and be pressed into switch or be switched on and off sense when（Then sense if inductive switch ?）When, latch deviates to cause handle completely from motor shaft with motor shaft disconnection and motor is started, electric motor starting rear-guard Dynamic pull bar is rotated and realizes thread segment is threadedly coupled in screwed hole.When pressing lever is extracted, switch off and cause motor Stop, as pressing lever loses the Intercepting effects to latch, in the presence of insertion spring, latch is inserted in motor shaft again, When now rotating handle can motor axle rotate, motor shaft drives pull bar to rotate, namely can carry out manual rotation.

Preferably, the desktop is provided with thread head, the display is provided with engaging lug, and the thread head passes through the company Connect and then link together with nut and the display is fixed on the desktop, the nut is included with the thread head The screw thread hole section of cooperation, the hole wall of the screw thread hole section are provided with the groove axially extending along nut, and the groove is through described Screw thread hole section.It is convenient during display to install and remove." screw thread hole section " is referred to.This technology side Nut in case is by opening up groove in the threaded walls of screw thread hole section, and groove runs through whole screw thread hole section, if screw thread Get rusty or there are debris, then during nut is turned, the debris such as rust can be by exclusion in groove, without stuck in nut And the screw thread of bolt between affect screw thread move according to normal track, so as to cause the phenomenon of stripped thread to occur, before twist-on nut, Some lubricating oil can be dripped in groove, and after in nut twist-on to bolt, unnecessary lubricating oil can be stored in groove, played The function of pcrmanent lubrication, gets rusty with regard to the long rear thread of evaluation time, but as long as staggering slightly some positions between screw thread, is stored in groove Lubricating oil screw thread can be lubricated again, screw thread is easily turned on, be unlikely to stripped thread, while because being designed with groove, breaking The continuity of screw thread is broken, such nut is not easy to loosen, and locking function can be higher.

Preferably, the groove is " V " shape groove.When nut is screwed on bolt, screw thread on groove and bolt connects Tactile line is oblique line, and during rotation, the edge of groove is good with the scraping effect of debris to the rust on screw thread so that nut and Hanging bolt Between be less susceptible to stripped thread.

Preferably, the angular aperture of the groove is 20 ° to 60 °.Can either ensure there are enough water environment capacities, having can Ensure the again enough intensity of sieve tooth.

Preferably, the cell wall of the groove is provided with sword.To the rust and debris on screw thread when can improve nut rotation Scraping effect.

Preferably, the groove is three or four, the groove is evenly distributed on the hole wall of the screw thread hole section. When screw thread gets rusty or has debris thereon, only need to by nut rotate a less angle be not more than 60 degree can just become rusty etc. miscellaneous Thing is discharged in groove, if uneven distribution, needed for debris are discharged in groove, the angle of rotation be able to will be revolved than being uniformly distributed The angle for turning is big, namely anti-slip thread function does not have equally distributed good, if the quantity of groove is opened too much, can affect nut Intensity.

The utility model also includes removable bindiny mechanism, and the anti-slop serrations are by the removable bindiny mechanism with described Suspension ring are detachably connected, and the removable bindiny mechanism includes being arranged at the jack of the suspension ring, is movably connected on institute State the inserted block of anti-slop serrations and drive inserted block to be inserted into the driving spring in the jack.Convenience during installing/dismounting anti-slop serrations is good.

Preferably, the inserted block is for spherical, the inserted block is with being mating spherical surfaces between the suspension ring.Further can carry Convenience during high installing/dismounting anti-slop serrations.

Preferably, the removable bindiny mechanism also includes supporting bowl, the driving spring is same by the support bowl The inserted block is abutted together, is mating spherical surfaces between the support bowl and the inserted block.When can improve Spring driving inserted block Reliability and inserted block rotate when patency.

Preferably, the face of the support inserted block for supporting bowl is provided with specular layer.Patency when inserted block is rotated is good.

Preferably, the anti-slop serrations are provided with power-assisted hole.During the lower protection tooth of dismounting, by by the body of rod（Such as inner hexagon spanner） Cat-in resisting force hole China and foreign countries draw anti-slop serrations to be exerted oneself, and convenience when dismantling anti-slop serrations is good.

Preferably, the power-assisted hole position is on the end face in anti-slop serrations facewidth direction.When the insertion body of rod is in resistance hole Convenience is good.

The utility model tool has the advantage that：Display is set, disclosure satisfy that the demand of multimedia teaching；Can after overload Automatically power off, can automatically reset after temperature drop；It is convenient during stationery not only to deposit, and can be to depositing in the text on desktop Tool carry out effectively spacing, avoid stationery from desktop under landing；Height adjustable, can easily adapt to the student's of differing heights Use demand；Lifting is convenient.

Description of the drawings

Structural representations of the Fig. 1 for the utility model embodiment one.

Enlarged diagrams of the Fig. 2 for binding post.

Axial schematic diagrames of the Fig. 3 for nut.

Fig. 4 is schematic diagram when binding post links together with power line.

Use state schematic diagrames of the Fig. 5 for the utility model embodiment one.

Fig. 6 is the structural representation of the spindle nose in embodiment two.

Fig. 7 is the close-up schematic view at the A of Fig. 6.

Fig. 8 is the cross-sectional schematic of the junction of suspension ring and anti-slop serrations.

Fig. 9 is the close-up schematic view at the B of Fig. 8.

In figure：Feet 1, thread head 11, display 12, engaging lug 121, epimere 13, hypomere 14, tray 15, spindle nose 16, text Tool 17, powershift mechanism 2, switch 21, pressing lever 22, latch 23, avoidance hole 231, driving inclined-plane 232, insertion spring 24, lock Only hole 25, binding post 3, wiring Copper Foil 31, wiring hole 32, air-vent 321, insulator 33, sleeve 34, insulating segment 341, lead Electric section 342, exterior seal ring 343, inner seal ring 344, support ball 345, inner support shell fragment 346, outer support shell fragment 347, air cavity 35th, overload response cylinder 36, overload response cylinder block 361, closing chamber 3611, open cavity 3612, pore 3613, overload response Cylinder piston 362, connecting rod 363, air flue 37, power line 38, suspension ring 4, anti-slop serrations 41, power-assisted hole 411, anti-slop serrations facewidth direction End face 412, removable bindiny mechanism 42, jack 421, inserted block 422, driving spring 423, support bowl 424, specular layer 425, electricity Machine 5, motor casing 51, motor shaft 52, reductor 53, handle 6, drawer frame 7, support spring 71, guide cylinder 72, desktop 8, pit 81st, support board 82, through hole 821, gusset plate 83, lead column 84, specular layer 85, connecting pole 851, screwed hole 852, bolt 86, hinge Chain 87, link gear 88, inserted link 881, jack 882, hinge 883, nut 9, groove 91, the angular aperture B of sword 92, groove.

Specific embodiment

The utility model is further described with embodiment below in conjunction with the accompanying drawings.

Referring to Fig. 1, a kind of lifting easily sets the dais of Self-protecting display, including the table for setting gradually from bottom to top Pin 1, drawer frame 7 and desktop 8.

Feet 1 includes hypomere 14 and epimere 13.The lower end of epimere 13 is threaded in the upper end of epimere 13.Epimere 13 sets There are tray 15 and the spindle nose on tray 16.Spindle nose 16 penetrates rotatably drawer frame 7.Drawer frame 7 is shelved on tray 15. The upper end of spindle nose 16 is provided with handle 6.

Drawer frame 7 is additionally provided with several guide cylinders 72.Support spring 71 is designed with each guide cylinder 72.Support spring 71 is stage clip.Drawer frame 7 is provided with a pair of suspension ring 4.Suspension ring 4 are stainless steel structure, and as stainless steel is made.Suspension ring 4 interior Side face is provided with least two anti-slop serrations 41.Anti-slop serrations 41 are distributed along the bearing of trend of suspension ring 4.Anti-slop serrations 41 are removable with suspension ring 4 Unload and link together.

Desktop 8 is provided with support board 82 and gusset plate 83.The lower surface of support board 82 is provided with some lead columns 84.Lead column 84 is vertically extending.Each lead column 84 is respectively located in a guide cylinder 72.Support spring 71 is supported on lead column 84 lower end and cause lead column 84 support board 82 is supported.The height of guide cylinder 72 is in free state more than support spring When length deduct support spring maximum collapse amount difference, i.e., when support board 82 is abutted on guide cylinder 72, support spring 71 does not have Have contraction to limiting condition.Support board 82 is all around designed with gusset plate 83 between four sides and fence 21.Gusset plate 83 One end by hinge 87 hinged with desktop 8.The other end of gusset plate 83 is connected with support board 82 by link gear 88 It is connected together.Link gear 88 includes inserted link 881 and jack 882.One end of inserted link 881 is articulated with support board by hinge 883 82 edge.The other end of inserted link 881 is located in jack 882.Jack 882 is arranged at the edge of gusset plate 83.This practicality is new When type is in free state, support board 82 is located in same level and concordant with desktop 8 with gusset plate 83.

Support board 82 is provided with through hole 821.The upper surface of support board 82 is provided with specular layer 85.The lower surface of specular layer 85 is with load The upper surface of thing plate 82 abuts together.The lower surface of specular layer 85 is provided with vertically extending connecting pole 851.Connecting pole 851 lower surface is provided with screwed hole 852.Connecting pole 851 is located in through hole 821.Specular layer 85 is passed through logical by bolt 86 821 rear thread of hole is connected in screwed hole 852 and is fixed together with support board 82.

Display 12 and thread head 11 is additionally provided with desktop 8.Display 12 is provided with engaging lug 121 and binding post 3.Screw thread 11 are threaded togather with nut 9 through after engaging lug 121 and fix on the table display.

Referring to Fig. 2, binding post 3 includes insulator 33 and is arranged at the wiring Copper Foil 31 of insulator surface.Insulator 33 It is fixed together with motor casing 51.Wiring Copper Foil 31 is electrically connected with the coil of motor.Wiring Copper Foil 31 is provided with wiring hole 32.Wiring hole 32 is penetrated in insulator 33.Blind hole of the wiring hole 32 for vertically extending upper end closed.Wiring Copper Foil 31 lower ends for being located at wiring hole 32 are openend.Sleeve 34 is slidably connected in wiring hole 32.Sleeve 34 includes insulating segment 341 and conductive segment 342.Insulating segment 341 and conductive segment 342 are axially distributed along sleeve 34.Insulating segment 341 is located at conductive segment 342 Lower section.Air cavity 35 and overload response cylinder 36 is provided with insulator 33.Wiring Copper Foil 31 constitutes a part for the wall of air cavity 35. Overload at least two, cylinder 36 of response.Overload response cylinder 36 is along the circumferentially distributed of sleeve 34.Overload response cylinder 36 is wrapped Include overload response cylinder block 361 and overload response cylinder piston 362.Overload response cylinder piston 362 will transship response cylinder Cylinder body 361 is divided into closing chamber 3611 and open cavity 3612.Closing chamber 3611 is connected with air cavity 35 by air flue 37.Open cavity 3612 are provided with pore 3613, realize opening with atmosphere by pore 3613.Overload response cylinder piston 362 is by connecting Extension bar 363 links together with the insulating segment 341 in sleeve 34.The axis of overload response cylinder piston 362 is with sleeve 34 Diameter parallel.

Insulating segment 341 is arranged with exterior seal ring 343.Exterior seal ring 343 is rubber ring.Exterior seal ring 343 is by insulating segment 341 It is sealed connected together with wiring Copper Foil 31.341 inner peripheral surface of insulating segment is provided with inner seal ring 344 and some support balls 345. The inner peripheral surface of conductive segment 342 is provided with inner support shell fragment 346.Inner support shell fragment 346 is the arch radially-inwardly arched upward along conductive segment Structure.The outer peripheral face of conductive segment 342 is provided with outer support shell fragment 347.Outer support shell fragment 347 radially outward arches upward along conductive segment Domes.Conductive segment 342 is abutted together with wiring Copper Foil 31 by outer support shell fragment 347.The upper end of wiring hole 32 is provided with Air-vent 321.

Referring to Fig. 3, the hole wall of the screw thread hole section of nut 9 is provided with three grooves 91, the axial direction of the threadingly hole section of groove 91 Extend, groove 91 runs through whole screw thread hole section, groove 91 is evenly distributed on the folder on the hole wall of screw thread hole section, i.e., between groove 91 Angle is 120 degree.Groove 91 is " V " shape groove.The angular aperture B of groove is 20 ° to 60 °.The cell wall of groove 91 is provided with sword 92.

Referring to Fig. 4, when the power supply that induces one is to display 12, by power line 38 from wiring hole 32 positioned at one end of wiring Copper Foil 31 In insertion sleeve 34.Insulating segment 341 is sealed connected together by inner seal ring 344 with power line 38.Inner support shell fragment 346 is same 38 elasticity of power line abuts and together conductive segment 342 and 38 electric conductivity of power line links together.Add in wiring hole 32 Enter conduction liquid.

Wiring Copper Foil 31 can produce temperature rise when the load, and the gas in air cavity 35 can produce expansion and iodine produces distillation and makes Air pressure in air cavity 35 is raised, the elevated structure of air pressure is for the gas inlet road 37 in air cavity 35 flows in closing chamber 3611 Drive（Pressure in open cavity 3612 remains identical with atmospheric pressure）Overload response cylinder piston 362 is moved up.Overload Response cylinder piston 362 drives sleeve 34 to move on wiring hole 32 is interior by connecting rod 363.When temperature rise is to design temperature then Overload response cylinder 36 driving sleeve slide into conductive segment 342 with wiring Copper Foil 31 stagger and insulating segment 341 with wiring Copper Foil 31 contacts, so that realize power-off.After Failure elimination, temperature can decline, and temperature drop contraction of gas then in air cavity 35 and iodine become The air pressure in air cavity 36 is declined into solid-state, the result of decline be so that the slide downward in the wiring hole 32 of sleeve 34, When temperature returns to normal value then conductive segment 342 link together with wiring Copper Foil 31 again, so as to realizing automatically reseting.

Referring to Fig. 5, during use, stationery 17 is set aside on support board 82, support board 82 under the weight effect of stationery 17 Decline and drive support spring 71 shrink, under the direct extruding of stationery 17 or/and under the driving of support board 82 gusset plate 83 with Hinge 87 is rotated down for axle, the result of above action for form pit 81 on desktop 8 and by spacing for stationery 17 live, cause stationery 17 will not slide in the horizontal direction and drop and gusset plate 83 presence so that not having big gap between support board and fence. Support board 82 is to realize the driving to gusset plate 83 by link gear 88.After stationery 17 are removed, in back-moving spring 36 The lower support board 82 of effect resets, when support board 82 resets in the case where link gear 88 is to the driving effect of gusset plate 83 gusset plate 83 Reset to horizontality.

When needing to adjust height, by rotating handle 6, handle 6 drives epimere 13 to rotate relative to hypomere 14, rotation As a result the depth for being screwed into hypomere for epimere changes and causes the lift in height of feet 1.

When specular layer 85 needs to change, remove bolt 86 and old specular layer 85 is extracted upwards then according to upper new Specular layer.

Referring to Fig. 8, suspension ring 4 are additionally provided with can formula bindiny mechanism 42.Anti-slop serrations 41 are provided with power-assisted hole 411.Power-assisted hole 411 is located at On the end face 412 in anti-slop serrations facewidth direction.Anti-slop serrations 41 are detachably connected on one by removable bindiny mechanism 82 with suspension ring 4 Rise.Removable bindiny mechanism 82 includes jack 421, inserted block 422, driving spring 423 and supports bowl 424.Jack 421 is arranged at and hangs Ring 4.Inserted block 422 is spherical.Inserted block 422 is located in anti-slop serrations 41.Driving spring 423 is located in anti-slop serrations 41.Support 424, bowl In anti-slop serrations 41.Driving spring 423 is abutted together with inserted block 422 by supporting bowl 424.Support bowl 424 and inserted block 422 it Between be mating spherical surfaces.

Referring to Fig. 9, inserted block 422 is with being mating spherical surfaces between suspension ring 4.The face of the support inserted block of bowl 424 is supported to be provided with mirror Surface layer 425.

Referring to Fig. 8 to Fig. 9, being realized by the body of rod is inserted in 411 China and foreign countries' drawing anti-slop serrations 41 of power-assisted hole during use will be anti-skidding Tooth 41 is removed from suspension ring 4, is directly inserted into during installation.

Embodiment two, with the difference of embodiment one be：

Referring to Fig. 6, feet is additionally provided with motor 5 and powershift mechanism 2.Motor 5 includes motor casing 51 and motor shaft 52.Electricity Casing 51 is fixed together with handle 6.Motor casing 51 is provided with binding post 3.Spindle nose 16 is connected to motor shaft by reductor 53 52 one end.The other end of motor shaft 52 is located in handle 6.

Referring to Fig. 7, powershift mechanism 2 includes switching 21, pressing lever 22, latch 23 and insertion spring 24.21 Hes of switch Pressing lever 22 is located at the both sides of latch 23.Switch 21 is fixed in handle 6.Switch 21 is by compressing switch, as controlled motor 5 is opened Dynamic and stopping.Pressing lever 22 is located in handle 6.Latch 23 is slidably connected in handle 6.Motor shaft 52 is provided with to be inserted for latch 23 The locking hole 25 for entering.Latch 23 is provided with avoidance hole 231.Avoid hole 231 driving switch 21 is gone for pressing lever 22 more than latch 23.Keep away Hole 231 is allowed to be provided with driving inclined-plane 232 towards one end of pressing lever 22.Insertion spring 24 is used for driving latch 23 to be inserted into motor shaft In locking hole 25 in 52.

The present embodiment carries out the process of powershift：When pressing lever 22 is in extracts state, in insertion spring 24 Under effect, latch 23 is inserted in avoidance hole 231 and handle 6 and motor shaft 52 links together, and now switch 21 is in disconnected Open state, motor 5 for stop, can only manual rotation, i.e. manual rotation's handle 6, handle 6 pass through 23 motor axle 52 of latch Rotate together, drive spindle nose 16 to rotate when motor shaft 52 is rotated and realize the rotation of epimere.

When needing to carry out Motor drive, press pressing lever 22, while pressing lever 22 is moved down driving inclined-plane 232 effect Under, latch 23 is extracted and avoids hole 231 and be arranged so that by 24 energy storage of pressing spring.When pressing lever 22 is applied to switch 21, latch 23 complete to extract avoidance hole 231 i.e. motor shaft 52 disconnect with handle 6, now motor 5 must be electric and start, electric motor starting rear motor axle 52 rotate and drive spindle nose 16 to rotate.When extracting pressing lever 22 and during so that pressing lever losing the effect to switch 21, motor loses Electricity stops.

Claims (10)

1. a kind of lifting easily sets the dais of Self-protecting display, including feet, be connected to feet upper end drawer frame and The desktop being connected on drawer frame, it is characterised in that the desktop is provided with display, the display is provided with binding post, The binding post includes insulator and is arranged at the wiring Copper Foil of insulator, and the wiring Copper Foil is electrically connected with the coil of motor Together, the wiring Copper Foil is provided with and penetrates into the internal wiring hole of the insulation, slidably connects wiring in the wiring hole Set, the sleeve include conductive segment of the insulating segment being distributed along sleeve axial direction together with same wiring Copper Foil abutting, described Insulation is provided with the air cavity and driven by the gas expansion in air cavity heated by the heat produced by wiring Copper Foil in vivo Dynamic for driving conductive segment to respond cylinder with the overload that the wiring Copper Foil staggers, the drawer frame is provided with suspension ring, described hangs Ring is stainless steel structure, and the inner peripheral surface of the suspension ring is provided with least two anti-slop serrations, and the anti-slop serrations are removable with the suspension ring Unload and link together, the anti-slop serrations are distributed along the bearing of trend of suspension ring.

2. lifting according to claim 1 easily sets the dais of Self-protecting display, it is characterised in that the desktop Support board and link gear is provided with, four sides all around of the support board are designed with gusset plate, and described gusset plate one end passes through Hinge is with the desktop is hinged, the other end is linked together with the support board by the link gear, the load Thing plate is supported in above the drawer frame by support spring.

3. lifting according to claim 2 easily sets the dais of Self-protecting display, it is characterised in that the linkage Mechanism includes that one end is articulated with the inserted link at the support board edge and is arranged at the jack at the gusset plate edge, the inserted link The other end is located in the jack.

4. the lifting according to Claims 2 or 3 easily sets the dais of Self-protecting display, it is characterised in that described The upper surface of support board is provided with specular layer.

5. the lifting according to claim 1 or 2 or 3 easily sets the dais of Self-protecting display, it is characterised in that institute Stating feet includes that hypomere and hypomere are threadedly connected to the epimere of hypomere upper end, and the epimere is provided with tray and the axle on tray Head, the spindle nose penetrate rotatably the drawer frame, and the drawer frame is shelved on the tray, and the upper end of the spindle nose sets There is handle.

6. lifting according to claim 5 easily sets the dais of Self-protecting display, it is characterised in that the feet Also include that the motor and powershift mechanism, the motor include motor casing and motor shaft, the motor casing is with the handle It is fixed together, the spindle nose is connected to one end of the motor shaft, the powershift mechanism includes starting the motor Switch, the pressing lever for driving the switch, the latch being slidably connected in handle that motor shaft is linked together with handle and Latch is driven to be inserted into the insertion spring in motor shaft, the latch is located between the switch and pressing lever, and the latch sets There are avoidance hole, the avoidance hole to be provided with the driving inclined-plane coordinated to drive the latch to depart from motor shaft with the pressing lever.

7. the lifting according to claim 1 or 2 or 3 easily sets the dais of Self-protecting display, it is characterised in that institute State desktop and be provided with thread head, the display is provided with engaging lug, the thread head is then connected to nut through the connection It is fixed on the desktop together and by the display, the nut includes the screw thread hole section coordinated with the thread head, institute The hole wall for stating screw thread hole section is provided with the groove axially extending along nut, and the groove runs through the screw thread hole section.

8. lifting according to claim 7 easily sets the dais of Self-protecting display, it is characterised in that the groove Cell wall be provided with sword.

9. the lifting according to claim 1 or 2 or 3 easily sets the dais of Self-protecting display, it is characterised in that also Including removable bindiny mechanism, the anti-slop serrations are detachably connected on one by the removable bindiny mechanism with the suspension ring Rise, the removable bindiny mechanism includes the jack for being arranged at the suspension ring, the inserted block for being movably connected on the anti-slop serrations and drive Dynamic inserted block is inserted into the driving spring in the jack.

10. lifting according to claim 9 easily sets the dais of Self-protecting display, it is characterised in that described slotting For spherical, the inserted block is with being mating spherical surfaces between the suspension ring for block.