CN107178304B - A kind of multifunctional safe ladder - Google Patents

A kind of multifunctional safe ladder Download PDF

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Publication number
CN107178304B
CN107178304B CN201710588634.7A CN201710588634A CN107178304B CN 107178304 B CN107178304 B CN 107178304B CN 201710588634 A CN201710588634 A CN 201710588634A CN 107178304 B CN107178304 B CN 107178304B
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CN
China
Prior art keywords
ladder
wheel
rod
dual
slideway
Prior art date
Application number
CN201710588634.7A
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Chinese (zh)
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CN107178304A (en
Inventor
李平
赵琳
赵铭江
咸跃福
徐成林
Original Assignee
国网山东省电力公司莱西市供电公司
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Priority to CN201710588634.7A priority Critical patent/CN107178304B/en
Publication of CN107178304A publication Critical patent/CN107178304A/en
Application granted granted Critical
Publication of CN107178304B publication Critical patent/CN107178304B/en

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Classifications

    • EFIXED CONSTRUCTIONS
    • E06DOORS, WINDOWS, SHUTTERS, OR ROLLER BLINDS IN GENERAL; LADDERS
    • E06CLADDERS
    • E06C1/00Ladders in general
    • E06C1/02Ladders in general with rigid longitudinal member or members
    • E06C1/14Ladders capable of standing by themselves
    • E06C1/16Ladders capable of standing by themselves with hinged struts which rest on the ground
    • E06C1/20Ladders capable of standing by themselves with hinged struts which rest on the ground with supporting struts formed as poles
    • E06C1/22Ladders capable of standing by themselves with hinged struts which rest on the ground with supporting struts formed as poles with extensible, e.g. telescopic, ladder parts or struts
    • EFIXED CONSTRUCTIONS
    • E06DOORS, WINDOWS, SHUTTERS, OR ROLLER BLINDS IN GENERAL; LADDERS
    • E06CLADDERS
    • E06C1/00Ladders in general
    • E06C1/02Ladders in general with rigid longitudinal member or members
    • E06C1/38Special constructions of ladders, e.g. ladders with more or less than two longitudinal members, ladders with movable rungs or other treads, longitudinally-foldable ladders
    • E06C1/39Ladders having platforms; Ladders changeable into platforms
    • EFIXED CONSTRUCTIONS
    • E06DOORS, WINDOWS, SHUTTERS, OR ROLLER BLINDS IN GENERAL; LADDERS
    • E06CLADDERS
    • E06C1/00Ladders in general
    • E06C1/02Ladders in general with rigid longitudinal member or members
    • E06C1/38Special constructions of ladders, e.g. ladders with more or less than two longitudinal members, ladders with movable rungs or other treads, longitudinally-foldable ladders
    • E06C1/397Special constructions of ladders, e.g. ladders with more or less than two longitudinal members, ladders with movable rungs or other treads, longitudinally-foldable ladders characterised by having wheels, rollers, or runners
    • EFIXED CONSTRUCTIONS
    • E06DOORS, WINDOWS, SHUTTERS, OR ROLLER BLINDS IN GENERAL; LADDERS
    • E06CLADDERS
    • E06C7/00Component parts, supporting parts, or accessories
    • EFIXED CONSTRUCTIONS
    • E06DOORS, WINDOWS, SHUTTERS, OR ROLLER BLINDS IN GENERAL; LADDERS
    • E06CLADDERS
    • E06C7/00Component parts, supporting parts, or accessories
    • E06C7/48Ladder heads; Supports for heads of ladders for resting against objects

Abstract

The present invention relates to a kind of multifunctional safe ladders, including ladder, bottom plate, level board, electric lifting rod, ladder wheel sub-wheel, supporting rod and mobile jib sliding block.The ladder upper end is equipped with level board, and lower end is equipped with bottom plate, and bottom plate lower end is equipped with ladder wheel sub-wheel, bottom plate upper end is equipped with electric lifting rod, the electric lifting rod is located at the right side of ladder, and mobile jib sliding block is connected between ladder and bottom plate, and supporting rod is equipped between level board and ladder.The level board of the present invention changes the angle between ladder with the lifting of ladder, it can remain parallel to the ground, rocking arm is housed inside level board, when ladder needs to lean on utility poles; rocking arm meeting automatic spring; on utility poles by level board locking, avoid shaking during ladder use, improve the job safety of worker.

Description

A kind of multifunctional safe ladder
Technical field
The invention belongs to electrician's technical field of auxiliary equipment, and in particular to be a kind of multifunctional safe ladder.
Background technology
Ladder is power worker's routine use auxiliary tool the most frequent, and ladder type currently on the market is various, Making material is aluminium alloy, stainless steel, fiberglass, iron, bamboo and wood etc., attends class to be divided into from structure and divide from pattern:Vertical ladder stretches Ladder, unilateral ladder, bilateral ladder, multifunctional ladder etc..It is limited to the operating environment of power worker, when electric operating, mostly uses vertical ladder, Used ladder is answered firm complete, and the pillar of ladder should be able to bear operating personnel and when entrained tool, material are climbed Total weight, Transverse grades of hard ladder should be embedded on pillar, and the distance of step should not exceed 40 centimetres, and at 1 meter of ladder top It limits high indicate.When being made using single ladder work, the oblique angle on ladder and ground is 60 degree or so, and unsuitable bind uses.On shaft tower Level is in use, using special Special ladder.Ladder both ends should be reliably connected with fixture before work, it generally should be by 1 people It works on ladder.When using ladder on smooth hard ground, gum cover or rubber cushion should be added in foot of ladder, made on dirt floor Iron point should be installed when with ladder, on foot of ladder additional.
On March 23rd, 2014, Chinese patent announces one, and application No. is the electricity box of 201420130834.X to install Special ladder Patent.This patent includes two vertical poles and the cross bar on top, and link slot is equipped on rear side of the cross bar on top, passes through axis in link slot It is hinged with plate body, plate body both sides are flexibly connected by connecting rod with two vertical poles respectively, and the groove body of opening, slot are equipped on rear side of vertical pole Body both sides of the edge are equipped with limited bayonet, and groove body bottom is equipped with sliding slot, longitudinal positioning tooth is equipped among sliding slot bottom end;Connecting rod is lived One gripping mechanism of dynamic connection, gripping mechanism can be slided along connecting rod side, and connecting rod end is equipped with a pulley being adapted to sliding slot, The locating slot being adapted to positioning tooth is equipped among the pulley.There are the angles between plate body and vertical pole to need in ladder for this patent Son is adjusted before erecting, and angle adjusting range is limited, causes plate body that can not accomplish parallel to the ground, when needing ladder It rests on when being constructed on electric pole, ladder can not be fixed effectively, and prodigious security risk is brought to user.
Invention content
The technical problem to be solved by the present invention is to:A kind of multifunctional safe ladder is overcome the deficiencies of the prior art and provide, this Invention level board changes the angle between ladder with the lifting of ladder, can remain parallel to the ground, in level board Portion is equipped with rocking arm, when ladder needs to lean on utility poles, rocking arm meeting automatic spring, on utility poles by level board locking, It avoids shaking during ladder use, improves the job safety of worker.
This solves the problems, such as it there are used technical solutions using invention:
A kind of multifunctional safe ladder, including ladder.The ladder lower end is equipped with bottom plate, and the ladder upper end is hinged There are level board, the bottom plate lower end to be equipped with ladder wheel sub-wheel, the substrate is equipped with electric lifting rod, the electric up-down Bar is located on the right side of ladder.The ladder includes mobile jib, cross bar, and the mobile jib upper outer is equipped with handwheel slideway, described Position inside mobile jib more than longitudinal center line is equipped with worm screw, and longitudinal center line position right side below is set inside the mobile jib There are supporting rod slideway, left side to be equipped with elevating lever slideway II.Supply unit, power supply dress are equipped on the left of the base plate interior It sets right side and is equipped with control device, Dual-output shaft motor I, I liang of the Dual-output shaft motor are equipped on the right side of the control device End is equipped with angular wheel I, and I right side of Dual-output shaft motor is equipped with Dual-output shaft motor II, the Dual-output shaft motor II both ends are equipped with angular wheel II, and the supply unit both sides are equipped with ladder mobile screw, and the ladder mobile screw is right End is equipped with screw rod angular wheel II, and the screw rod angular wheel II engages connection with angular wheel I, and the ladder moves spiral shell Elevating lever mobile screw is equipped on the right side of bar, the elevating lever mobile screw right end is equipped with screw rod angular wheel I, the screw rod Angular wheel I engages connection with angular wheel II, and the base plate interior quadrangle is equipped with ladder wheel sub-wheel elevator, the ladder wheel sub-wheel Elevator is internally threaded hole, and the position that the plate upper surface corresponds to ladder mobile screw is equipped with mobile jib slideway, described Plate upper surface correspond to elevating lever mobile screw position be equipped with elevating lever slideway I, the bottom panel side be equipped with control press Button.The electric lifting rod upper end is hinged with elevating lever sliding block, and the elevating lever sliding block is located inside elevating lever slideway II, The electric lifting rod lower end is equipped with elevating lever movable block, and the elevating lever movable block is located inside elevating lever slideway I, institute The elevating lever movable block center stated is equipped with threaded hole, threaded hole and the elevating lever mobile screw at the elevating lever movable block center It is threadedly coupled, the bottom surface that bottom plate is located at below the elevating lever movable block is equipped with slip ring, and the slip ring internal slide is set There is carbon brush.The carbon brush is fixedly connected with electric lifting rod, and the electric lifting rod passes through carbon brush, slip ring and supply unit It is electrically connected.Mobile jib sliding block is equipped between the ladder and bottom plate, the mobile jib upper end of slide block is hinged with mobile jib, described Mobile jib sliding block lower end is set to inside mobile jib slideway, and fixed turbine wheel shaft, the whirlpool are equipped among the mobile jib sliding block Wheel shaft engages connection with gear on worm.The level board includes shell, and middle layer is equipped among the shell, and described is outer Shell front end is equipped with arc-shaped slot, and the top that the shell is located behind middle layer is equipped with spring base, two behind the shell Side respectively sets one and is secured to motionless same position gear, and the same position gear engages connection, the shell with gear on worm Front end both sides are respectively provided with a rocking arm slideway, and the arc-shaped slot is internally provided with electric pole fastening switch, electric pole fastening It switchs rear end both sides and is equipped with rack, be equipped with spring groove among described two racks, set between the spring groove and spring base There is spring, rocking arm limiting device is equipped on the right side of the rack, the rocking arm limiting device includes the gear set to the left And the limiting tooth on right side, wheel and rack engagement connection, the rocking arm slideway are internally provided with rocking arm, described shakes Torsional spring I is equipped between arm and shell, I center of torsional spring is equipped with connecting shaft, and the connecting shaft passes through middle layer, described It is located in connecting shaft below middle layer and is fixed with rocker-arm return gear, the connecting shaft is fixedly connected with rocking arm, described Rocking arm side is equipped with pawl slideway, is equipped with pawl inside the pawl slideway, the pawl front end is stuck in limiting tooth Portion, is equipped with torsional spring II between the pawl and rocking arm, the rocking arm rear end is equipped with travel switch.The enclosure position Center below middle layer is equipped with Dual-output shaft motor III, and III both ends of Dual-output shaft motor are equipped with output snail Bar, the output worm screw can be freely rotated in the case that Dual-output shaft motor III is cold.Before the output worm screw End engagement is connected with intermediate gear, and the intermediate gear engages connection with rocker-arm return gear gear.Under the level board Square both sides are hinged with supporting rod, and supporting rod sliding block, described supporting rod sliding block one end are equipped between the supporting rod and mobile jib Hinged with supporting rod, the supporting rod sliding block other end is set to inside supporting rod slideway, is worn inside the handwheel slideway There are locking handwheel, the locking handwheel to be threadedly coupled with supporting rod sliding block.The Dual-output shaft motor I, double output shaft electricity Machine II, Dual-output shaft motor III, travel switch, electric lifting rod, supply unit are electrically connected with control device respectively, and are passed through Control button realizes respective action.
Preferably, the ladder wheel sub-wheel includes wheel daughter and wheel, and rotation axis is equipped among the wheel, described Wheel is set to inside wheel body, and rotation axis sliding slot, the wheel daughter are equipped in the top of rotation axis inside the wheel body Inner upper is equipped with decoupling rod sliding slot, and decoupling rod, the damping are equipped between the rotation axis sliding slot and decoupling rod sliding slot Bar lower end is equipped with lower endpiece, and the lower endpiece is set to inside rotation axis sliding slot, and the decoupling rod upper end is equipped with upper endpiece, institute The upper endpiece stated is located inside decoupling rod sliding slot, and the top that the decoupling rod sliding slot is internally located at upper endpiece is equipped with thrust bullet Spring, the wheel daughter upper end are equipped with connecting rod, and the connecting rod is equipped with threaded portion, the threaded portion and ladder wheel sub-wheel liter Threaded hole inside drop block is fastenedly connected.
Preferably, the anti-slip rubber of arc is fixed on the inside of the rocking arm end.
Preferably, the travel switch can be Direct Action Type travel switch, rolling wheel type travel switch.
Preferably, the length of the level board is more than the thickness of ammeter box.
According to a kind of application method of multifunctional safe ladder described in claim 1, include the following steps:
Step 1, fixed bottom plate:
Multifunctional safe ladder is dragged into construction site, finds placement region, ladder wheel sub-wheel is rotated, passes through connecting rod top Threaded portion moved up and down in ladder wheel sub-wheel lifts threaded hole in the block, realize the adjustment of ladder wheel sub-wheel upper and lower position, adjust four ladders The upper and lower position of son wheel, it is ensured that bottom plate is horizontal with ground.
Step 2 increases ladder to specified maintenance position:
Control button is pressed, drives Dual-output shaft motor I and Dual-output shaft motor II to rotate by control device, drives Ladder mobile screw and the rotation of elevating lever mobile screw so that ladder is moved forward and backward with electric lifting rod on bottom plate, simultaneously Electric lifting rod is controlled by control device to be raised above, until horizontal front edge of board leans on the wall below ammeter box service area On.When electric lifting rod is raised above, ladder can be rotated along mobile jib upper end of slide block, at this moment be fixed on the whirlpool on mobile jib sliding block Wheel shaft promotes the worm screw inside ladder to rotate, and worm screw engages connection with the same position gear being fixed on level board, therefore worm screw Rotation drives level board to be rotated around level board and the hinged axis of ladder so that level board is parallel with bottom plate always.Level board Rotation push the supporting rod sliding block of supporting rod lower end to be slided in handwheel slideway, be to twist when operating personnel climbs to ladder upper end Tight locking handwheel, avoids supporting rod sliding block in operation process from moving.The object that horizontal front edge of board relies on is not metope but electric wire When bar, in the arc-shaped slot that electric pole is abutted against to horizontal front edge of board, at this moment electric pole pushes electric pole fastening switch to move backward, Rack drives rocking arm limiting device rotation on electric pole fastening switch, unlocks the locking to pawl on rocking arm, rocking arm is in torsional spring I It is popped up under revolution force effect and holds electric pole tightly.When worker climbs up ladder, the pressure that wheel is subject to is more than pushing away for thrust spring Power, wheel daughter whereabouts are contacted with ground, further improve the stability of ladder, after reaching ladder top, worker can be by power tool It is placed on level board.
Step 3 recycles ladder:
After the completion of operation, locking handwheel is unclamped, ladder is gone down, the pressure that wheel is subject to reduces, less than pushing away for thrust spring Power, wheel daughter are risen, and ground is detached from.It presses control button and Dual-output shaft motor III, double output shaft electricity is driven by control device The output worm screw of machine III drives the rotation of rocker-arm return gear by intermediate gear so that rocking arm overcomes the turning power of torsional spring I to be detached from Electric pole is gone to level board internal recovering when the pawl for running to upper part is stuck in inside rocking arm limiting device upper limit tooth Journey switch motion supplies the power supply of Dual-output shaft motor III by control device cut-out, and Dual-output shaft motor III is stopped. Press control button drives Dual-output shaft motor I, Dual-output shaft motor II and electric lifting rod to act by control device, receives Mobile jib sliding block, is moved to the left end of mobile jib slideway by contracting electric lifting rod and the right end for being moved into elevating lever slideway I, Reduce ladder height so that ladder is drawn close to bottom plate, the movement of convenient multi-purpose way safety ladder.
Compared with prior art, advantageous effect possessed by the present invention:
(1) for the present invention with the angle change between ladder and bottom plate, level board changes the angle between ladder automatically, So that level board is always maintained at parallel state between ground, it is ensured that the compactness of horizontal front edge of board and metope reduces The operation difficulty of ladder improves the safety used.
(2) ladder wheel sub-wheel of the present invention can carry out 90 ° of rotation, realize the conversion between wheel to cushion block, while each The height of ladder wheel sub-wheel can be adjusted, and facilitate the delivery of ladder, ladder using when may insure again floor level place, to ladder The strong support of son, has ensured the job safety of worker.
(3) length of level board of the present invention is more than existing ammeter box thickness, has widened use scope.
(4) electric pole can be abutted against the arc of level board by the present invention when needing the operation on the shafts such as electric pole Inside card slot, the rocking arm meeting automatic spring in level board on utility poles by level board locking avoids ladder in worker's operation It shakes in the process.
(5) decoupling rod and thrust spring are housed inside ladder wheel sub-wheel of the present invention, damping can be provided in ladder moving process Function avoids vibrations from causing the damage of the electric elements such as control device.
Description of the drawings
Present invention will be further explained below with reference to the attached drawings and examples.
Fig. 1 is a kind of multifunctional safe ladder side view of the present invention,
Fig. 2 is front view of the present invention,
Fig. 3 is vertical view of the present invention,
Fig. 4 is level board superstructure figure of the present invention,
Fig. 5 is level board understructure figure of the present invention,
Fig. 6 is baseplate internal structure figure of the present invention,
Fig. 7 is ladder mobile jib internal structure chart of the present invention,
Fig. 8 is ladder wheel sub-wheel outline drawing of the present invention,
Fig. 9 is ladder wheel sub-wheel sectional view figure of the present invention,
Figure 10 is the faces A-A of the present invention sectional view,
Figure 11 is the faces B-B of the present invention sectional view,
Figure 12 is the faces C-C of the present invention sectional view,
Figure 13 is the faces D-D of the present invention sectional view,
Figure 14 is the faces E-E of the present invention sectional view,
Figure 15 is the faces F-F of the present invention sectional view,
Figure 16 is the control system schematic diagram of the present invention.
In figure:1- bottom plates, 1a- supply units, 1b- control devices, 1c- Dual-output shaft motors I, 1c1- angular wheels I, 1d- Dual-output shaft motors II, 1d1- angular wheels II, 1e- elevating levers mobile screw, 1e1- screw rods angular wheel I, 1f- ladders Mobile screw, 1f1- screw rods angular wheel II, 1g- control buttons, 1h- ladder wheel sub-wheels elevator, 1h1- threaded holes, 1i- mobile jibs are slided Road, 1j- elevating levers slideway I;
2- ladders, 2a- mobile jibs, 2a1- handwheels slideway, 2b- cross bars, 2c- worm screws, 2d- supporting rods slideway, 2e- elevating levers are slided Road II;
3- level boards, 3a- shells, 3a1- spring bases, 3a2- with position gear, 3a3- rocking arms slideway, 3a4- arc-shaped slots, 3b- middle layers, 3c- electric poles fastening switch, 3c1- racks, 3c2- spring grooves, 3d- rocking arms, 3d1- pawls, 3d11- torsional springs II, 3d2- torsional springs I, 3d3- connecting shafts, 3d4- rocker-arm returns gear, 3d5- pawls slideway, 3e- springs, 3f- rocking arms limiting device, 3f1- gears, 3f2- limiting tooths, 3g- travel switches, 3h- Dual-output shaft motors III, 3h1- outputs worm screw, 3i- intermediate gears;
4- electric lifting rods, 4a- elevating levers sliding block, 4b- slip rings, 4c- elevating levers movable block, 4d- carbon brush;
5- ladder wheel sub-wheels, 5a- wheel daughter, 5a1- rotation axis sliding slot, 5a2- decoupling rods sliding slot, 5a3- connecting rods, 5b- wheels, 5b1- rotation axis, 5c- decoupling rods, 5c1- lower endpieces, 5c2- upper endpieces, 5d- thrust springs;
6- supporting rods, 6a- supporting rods sliding block, 6b- lock handwheel;
7- mobile jibs sliding block, 7a- turbine wheel shafts;
Specific implementation mode
Attached drawing is a kind of most preferred embodiment of multifunctional safe ladder, below in conjunction with the accompanying drawings to of the invention further detailed Explanation.
A kind of multifunctional safe ladder, including ladder 2.2 lower end of ladder is equipped with bottom plate 1, the ladder upper end It is hinged with level board 3, the length of the level board 3 is more than the thickness of ammeter box, facilitates level board 3 that can rely on ammeter box On metope afterwards, and other tools are placed on the longer platform of level board 3.1 lower end of bottom plate is equipped with ladder wheel sub-wheel 5, The bottom plate 1 is equipped with electric lifting rod 4 above, and the electric lifting rod 4 is located at 2 right side of ladder.
The ladder 2 includes cross bar 2b made of mobile jib 2a and aluminum alloy square tube, the mobile jib 2a upper outers Equipped with handwheel slideway 2a1, the position inside the mobile jib 2a more than longitudinal center line is equipped in worm screw 2c, the mobile jib 2a Supporting rod slideway 2d is equipped on the right side of portion's longitudinal center line position below, left side is equipped with II 2e of elevating lever slideway.
1 inside left of bottom plate is equipped with supply unit 1a, and supply unit 1a includes accumulator, transformer and power supply Socket can use storage battery power supply outdoors in the case of no power supply, external power supply is directly used in the case of having power supply Power supply.It is equipped on the right side of the supply unit 1a on the right side of control device 1b, the control device 1b and is equipped with Dual-output shaft motor I 1c, I both ends 1c of Dual-output shaft motor are equipped on the right side of angular wheel I 1c1, I 1c of Dual-output shaft motor equipped with double II 1d of spindle motor is exported, II both ends 1d of Dual-output shaft motor are equipped with II 1d1 of angular wheel.The supply unit 1a two Side is equipped with ladder mobile screw 1f, and the ladder mobile screw 1f right ends are equipped with II 1f1 of screw rod angular wheel, the screw rod II 1f1 of angular wheel engages connection with I 1c1 of angular wheel, and being equipped with elevating lever on the right side of the ladder mobile screw 1f moves spiral shell Bar 1e, the elevating lever mobile screw 1e right ends be equipped with screw rod angular wheel I 1e1, I 1e1 of screw rod angular wheel with Angular wheel II 1d1 engagement connections.The 1 inside quadrangle of bottom plate is equipped with ladder wheel sub-wheel elevator 1h, ladder wheel sub-wheel lifting Block 1h is internally threaded hole 1h1, and the position that 1 upper surface of bottom plate corresponds to ladder mobile screw 1f is equipped with mobile jib slideway 1i, the position that 1 upper surface of bottom plate corresponds to elevating lever mobile screw 1e are equipped with I 1j of elevating lever slideway, 1 side of bottom plate Face is equipped with control button 1g.
The ladder wheel sub-wheel 5 includes to be equipped with rotation axis 5b1, institute among wheel daughter 5a and wheel 5b, the wheel 5b The wheel 5b stated is set to inside wheel daughter 5a, and rotation axis sliding slot is equipped in the top of rotation axis 5b1 inside the wheel daughter 5a 5a1, the wheel daughter 5a inner uppers are equipped with decoupling rod sliding slot 5a2, the rotation axis sliding slot 5a1 and decoupling rod sliding slot Decoupling rod 5c is equipped between 5a2, the lower ends decoupling rod 5c are equipped with lower endpiece 5c1, the lower endpiece 5c1 and are set to rotation axis Inside sliding slot 5a1, the upper ends decoupling rod 5c are located at decoupling rod sliding slot 5a2 equipped with upper endpiece 5c2, the upper endpiece 5c2 Inside, the top that the decoupling rod sliding slot 5a2 is internally located at upper endpiece 5c2 are equipped with thrust spring 5d.Decoupling rod 5c and thrust Spring 5d can provide cushioning effect in ladder moving process, and vibrations is avoided to cause control device and other electric elements Damage.The upper ends wheel daughter 5a are equipped with connecting rod 5a3, the connecting rod 5a3 and are equipped with threaded portion 5a31, the spiral shell Line portion 5a31 is fastenedly connected with the threaded hole 1h1 inside ladder wheel sub-wheel elevator 1h.
The electric lifting rod 4 is also known as push-rod electric machine, electric cylinder and linear actuators.Electric lifting rod be it is a kind of will be electric The rotary motion of motivation is changed into the power-driven gear of the straight reciprocating motion of elevating lever.It can be used for various simple or complicated As machinery use is executed in technological process, to realize far distance controlled, centralized control or automatically control.Electric lifting rod bar can To design the electric lifting rod of different thrusts according to different application loads, its general maximum thrust is up to 6000N, zero load fortune Scanning frequency degree is 4mm~35mm/s, and electric pushrod turns the rotary motion of motor using 24V/12V direct current permanent magnet motors as power source Turn to straight reciprocating motion.The upper end of electric lifting rod 4 is hinged with elevating lever sliding block 4a, and the elevating lever sliding block 4a, which is located at, to be risen It drops inside II 2e of bar slideway, 4 lower end of electric lifting rod is equipped with elevating lever movable block 4c, the elevating lever movable block 4c Inside I 1j of elevating lever slideway, the centers elevating lever movable block 4c are equipped with threaded hole, the elevating lever movable block 4c The threaded hole at center is threadedly coupled with elevating lever mobile screw 1e, and the bottom of bottom plate 1 is located at below the elevating lever movable block 4c Face is equipped with slip ring 4b, and the slip ring 4b internal slides are equipped with carbon brush 4d.The carbon brush 4d is fixed with electric lifting rod 4 to be connected It connects, the electric lifting rod 4 is electrically connected by carbon brush 4d, slip ring 4b and supply unit 1a.
Mobile jib sliding block 7 is equipped between the ladder 2 and bottom plate 1,7 upper end of mobile jib sliding block is hinged with mobile jib 2a, 7 lower end of mobile jib sliding block is set to inside mobile jib slideway 1i, and fixed turbine wheel shaft is equipped among the mobile jib sliding block 7 7a, the turbine wheel shaft 7a engage connection with worm screw 2c gears.
The level board 3 includes shell 3a, and middle layer 3b, the front ends shell 3a are equipped among the shell 3a Equipped with arc-shaped slot 3a4, the top that the shell 3a is located behind middle layer 3b is equipped with spring base 3a1, the shell 3a Two sides behind respectively sets one and is secured to motionless same position gear 3a2, and the same position gear 3a2 engages company with worm screw 2c gears It connects, the front ends the shell 3a both sides are respectively provided with a rocking arm slideway 3a3, and it is tight that the arc-shaped slot 3a4 is internally provided with electric pole Admittedly switch 3c, the electric pole fastens the rear ends switch 3c both sides and is equipped among rack 3c1, described two rack 3c1 equipped with bullet Spring slot 3c2 is equipped on the right side of spring 3e, the rack 3c1 between the spring groove 3c2 and spring base 3a1 and is equipped with rocking arm limit Position device 3f, the rocking arm limiting device 3f include the limiting tooth 3f2 for setting gear 3f1 and right side to the left, described Gear 3f1 engage connection with rack 3c1, the rocking arm slideway 3a3 is internally provided with rocking arm 3d, fixed on the inside of the ends rocking arm 3d There is the anti-slip rubber of arc, I 3d2 of torsional spring is equipped between the rocking arm 3d and shell 3a, I centers 3d2 of torsional spring are equipped with Connecting shaft 3d3, the connecting shaft 3d3 pass through the lower section on middle layer 3b, the connecting shaft 3d3 positioned at middle layer 3b to fix There are rocker-arm return gear 3d4, the connecting shaft 3d3 to be fixedly connected with rocking arm 3d, the sides rocking arm 3d are slided equipped with pawl Pawl 3d1 is equipped with inside road 3d5, the pawl slideway 3d5, the front ends pawl 3d1 are stuck in inside limiting tooth 3f2, II 3d11 of torsional spring is equipped between the pawl 3d1 and rocking arm 3d, the rear ends rocking arm 3d are equipped with travel switch 3g, and stroke is opened It can be Direct Action Type travel switch, rolling wheel type travel switch to close 3g.The operating principle of Direct Action Type travel switch is similar with button, and institute is not It is manual that same, which is one, another is then collided by the collision block of moving component.When the collision block bruising button on extraneous moving component Make its contact action, after moving component leaves, under the action of the spring, contact automatically resets;Rolling wheel type travel switch moves It is when the buting iron (collision block) of movable machinery is pressed onto on the idler wheel of travel switch as principle, transmission bar rotates together together with shaft, So that cam is pushed collision block, when collision block bruising is to certain position, pushes microswitch quick acting.When the buting iron on idler wheel is removed Afterwards, resetting spring just makes travel switch reset.This is that single-wheel restores formula travel switch automatically.And Double wheel rotary travel switch It cannot restore automatically, when it is by movable machinery reverse movement, buting iron collides another idler wheel and restored.
The shell 3a is internally located at the center below middle layer 3b equipped with Dual-output shaft motor III 3h, described III both ends 3h of Dual-output shaft motor are equipped with output worm screw 3h1, the output worm screw 3h1 in III 3h no powers of Dual-output shaft motor In the case of can be freely rotated, the front ends output worm screw 3h1 engagement be connected with intermediate gear 3i, the intermediate gear 3i engages connection with rocker-arm return gear 3d4 gears.
The 3 lower section both sides of level board are hinged with supporting rod 6, and support is equipped between the supporting rod 6 and mobile jib 2a Bar sliding block 6a, described supporting rod one end sliding block 6a is hinged with supporting rod 6, and the supporting rod sliding block 6a other ends are set to support Inside bar slideway 2d, it is equipped with locking handwheel 6b, the locking handwheel 6b inside the handwheel slideway 2a1 and is slided with supporting rod Block 6a is threadedly coupled.I 1c of Dual-output shaft motor, II 1d of Dual-output shaft motor, III 3h of Dual-output shaft motor, travel switch 3g, electric lifting rod 4, supply unit 1a are electrically connected with control device 1b respectively, and respective by control button 1g realizations Action.
A kind of application method of multifunctional safe ladder, includes the following steps:
Step 1, fixed bottom plate:
Multifunctional safe ladder is dragged into construction site, ladder wheel sub-wheel 5 is rotated after finding placement region, passes through connecting rod The threaded portion 5a31 on the tops 5a3 is moved up and down in the threaded hole 1h1 in ladder wheel sub-wheel elevator 1h, is realized the next on ladder wheel sub-wheel 5 Adjustment is set, adjusts the upper and lower position of four ladder wheel sub-wheels 5, it is ensured that bottom plate 1 is horizontal with ground.
Step 2 increases ladder to specified maintenance position:
Control button 1g is pressed, I 1c of Dual-output shaft motor and II 1d of Dual-output shaft motor is driven by control device 1b Rotation drives ladder mobile screw 1f and the 1e rotations of elevating lever mobile screw so that ladder 2 is with electric lifting rod 4 in bottom plate 1 Upper back-and-forth motion, while electric lifting rod 4 is controlled by control device 1b and is raised above, until ammeter is leaned in 3 front end of level board On wall below case service area.When electric lifting rod 4 is raised above, ladder 2 can be rotated along 7 upper end of mobile jib sliding block, At this moment the turbine wheel shaft 7a being fixed on mobile jib sliding block 7 promotes the rotations of the worm screw 2c inside ladder 2, worm screw 2c and is fixed on level board Same position gear 3a2 engagement connections on 3, therefore the rotation of worm screw 2c drives level board 3 hinged around level board 3 and ladder 2 Axis rotates so that level board 3 is parallel with bottom plate 1 always.
The rotation of level board 3 pushes the supporting rod sliding block 6a of 6 lower end of supporting rod to be slided in handwheel slideway 2a1.Work as operation It is to tighten locking handwheel 6b that personnel, which climb to 2 upper end of ladder, and supporting rod sliding block 6a in operation process is avoided to move.3 front end of level board When the object of dependence is not metope but electric pole, in the arc-shaped slot 3a4 that electric pole is abutted against to 3 front end of level board, at this moment Electric pole pushes electric pole fastening switch 3c to move backward, and electric pole fastens the rack 3c1 on switch 3c and drives rocking arm limiting device 3f Rotation, unlocks the locking to pawl 3d1 on rocking arm 3d, rocking arm 3d is popped up under the revolution force effect of I 3d2 of torsional spring and held electric wire tightly Bar.When worker climbs up ladder, the pressure that wheel 5b is subject to is more than the thrust of thrust spring 5d, and the whereabouts wheel daughter 5a connects with ground It touches, further improves the stability of ladder, after reaching ladder top, power tool can be placed on level board 3 by worker.
Step 3 recycles ladder:
After the completion of operation, locking handwheel 6b is unclamped, ladder 2 is gone down, the pressure that wheel 5b is subject to reduces, and is less than thrust spring The thrust of 5d, wheel daughter 5a rise, and are detached from ground.It presses control button 1g and Dual-output shaft motor III is driven by control device 1b The output worm screw 3h1 of 3h, III 3h of Dual-output shaft motor drive the 3d4 rotations of rocker-arm return gear by intermediate gear 3i so that shake Arm 3d overcomes the turning power of I 3d2 of torsional spring to be detached from electric pole to 3 internal recovering of level board, when the pawl 3d1 cards for running to upper part When inside rocking arm limiting device 3f upper limit teeth 3f1, travel switch 3g actions, by control device 1b cut-outs to double output shaft The power supply of III 3h of motor is supplied, and III 3h of Dual-output shaft motor is stopped.Control button 1g is pressed to drive by control device 1b I 1c of Dual-output shaft motor, II 1d of Dual-output shaft motor and electric lifting rod 4 act, and shrink electric lifting rod 4 and are moved To the right end of I 1j of elevating lever slideway, mobile jib sliding block 7 is moved to the left end of mobile jib slideway 1i, reduces 2 height of ladder, So that ladder 2 is drawn close to bottom plate 1, the movement of convenient multi-purpose way safety ladder.
Embodiments of the present invention are explained in detail above in conjunction with attached drawing, but the present invention is not limited to above-mentioned implementations Mode, technical field those of ordinary skill within the scope of knowledge, present inventive concept can also not departed from Under the premise of various changes can be made.

Claims (6)

1. a kind of multifunctional safe ladder, including ladder (2), it is characterised in that:
Described ladder (2) lower end is equipped with bottom plate (1), and the ladder upper end is hinged with level board (3), the bottom plate (1) Lower end is equipped with ladder wheel sub-wheel (5), and the bottom plate (1) is equipped with electric lifting rod (4) above, and the electric lifting rod (4) is located at On the right side of ladder (2),
The ladder (2) includes mobile jib (2a), cross bar (2b), and the mobile jib (2a) upper outer is equipped with handwheel slideway (2a1), the position more than internal longitudinal center line of the mobile jib (2a) are equipped with worm screw (2c), the mobile jib (2a) inner shaft It is equipped with elevating lever slideway II (2e) equipped with supporting rod slideway (2d), left side on the right side of to center line position below,
Described bottom plate (1) inside left is equipped with supply unit (1a), and control device is equipped on the right side of the supply unit (1a) (1b), the control device (1b) right side are equipped with Dual-output shaft motor I (1c), described both ends Dual-output shaft motor I (1c) Equipped with angular wheel I (1c1), Dual-output shaft motor II (1d) is equipped on the right side of the Dual-output shaft motor I (1c), described is double It exports the both ends spindle motor II (1d) and is equipped with angular wheel II (1d1), the both sides the supply unit (1a) are equipped with ladder and move spiral shell Bar (1f), described ladder mobile screw (1f) right end are equipped with screw rod angular wheel II (1f1), the screw rod angular wheel II (1f1) engages connection with angular wheel I (1c1), and elevating lever mobile screw is equipped on the right side of the ladder mobile screw (1f) (1e), described elevating lever mobile screw (1e) right end are equipped with screw rod angular wheel I (1e1), the screw rod angular wheel I (1e1) engages connection with angular wheel II (1d1), and the internal quadrangle of the bottom plate (1) is equipped with ladder wheel sub-wheel elevator (1h), described Ladder wheel sub-wheel elevator (1h) be internally threaded hole (1h1), the bottom plate (1) upper surface corresponds to ladder mobile screw (1f) Position be equipped with mobile jib slideway (1i), the bottom plate (1) upper surface corresponds to elevating lever mobile screw (1e) position be equipped with liter Bar slideway I (1j) drops, and the bottom plate (1) side is equipped with control button (1g),
Described electric lifting rod (4) upper end is hinged with elevating lever sliding block (4a), and the elevating lever sliding block (4a) is located at lifting Bar slideway II (2e) is internal, and described electric lifting rod (4) lower end is equipped with elevating lever movable block (4c), elevating lever movement Block (4c) is located at elevating lever slideway I (1j) inside, and described center elevating lever movable block (4c) is equipped with threaded hole, the lifting The threaded hole at the center bar movable block (4c) is threadedly coupled with elevating lever mobile screw (1e), under the elevating lever movable block (4c) Orientation is equipped with slip ring (4b) in the bottom surface of bottom plate (1), and the slip ring (4b) internal slide is equipped with carbon brush (4d), the carbon Brush (4d) is fixedly connected with electric lifting rod (4), and the electric lifting rod (4) passes through carbon brush (4d), slip ring (4b) and power supply Device (1a) is electrically connected,
Mobile jib sliding block (7), mobile jib sliding block (7) upper end and mobile jib (2a) are equipped between the ladder (2) and bottom plate (1) Hinged, described mobile jib sliding block (7) lower end is set to mobile jib slideway (1i) inside, is equipped with and fixes among the mobile jib sliding block (7) Motionless turbine wheel shaft (7a), the turbine wheel shaft (7a) engage connection with worm screw (2c) gear,
The level board (3) includes shell (3a), and middle layer (3b), the shell are equipped among the shell (3a) The front end (3a) is equipped with arc-shaped slot (3a4), and the top that the shell (3a) is located behind middle layer (3b) is equipped with spring base (3a1), the shell (3a) two sides behind respectively set one and are secured to motionless same position gear (3a2), the same position tooth Wheel (3a2) engages connection with worm screw (2c) gear, and the front end both sides the shell (3a) are respectively provided with a rocking arm slideway (3a3), The arc-shaped slot (3a4) is internally provided with electric pole fastening switch (3c), and electric pole fastening switch rear end both sides (3c) are set There is rack (3c1), spring groove (3c2), the spring groove (3c2) and spring base are equipped among described two racks (3c1) It is equipped with spring (3e) between (3a1), rocking arm limiting device (3f), rocking arm limit are equipped on the right side of the rack (3c1) Device (3f) includes to set gear (3f1) to the left and the limiting tooth (3f2) on right side, the gear (3f1) and rack (3c1) engagement connection, the rocking arm slideway (3a3) are internally provided with rocking arm (3d), the rocking arm (3d) and shell (3a) it Between be equipped with torsional spring I (3d2), described center torsional spring I (3d2) be equipped with connecting shaft (3d3), during the connecting shaft (3d3) passes through Interbed (3b) is located in the connecting shaft (3d3) below middle layer (3b) and is fixed with rocker-arm return gear (3d4), described Connecting shaft (3d3) be fixedly connected with rocking arm (3d), the side the rocking arm (3d) be equipped with pawl slideway (3d5), the spine Pawl (3d1) is equipped with inside pawl slideway (3d5), the front end the pawl (3d1) is stuck in limiting tooth (3f2) inside, described Torsional spring II (3d11) is equipped between pawl (3d1) and rocking arm (3d), the rear end the rocking arm (3d) is equipped with travel switch (3g),
The shell (3a) is internally located at the center below middle layer (3b) and is equipped with Dual-output shaft motor III (3h), described The both ends Dual-output shaft motor III (3h) be equipped with output worm screw (3h1), the output worm screw (3h1) is in Dual-output shaft motor III It can be freely rotated in the case of (3h) is cold, the engagement of described front end output worm screw (3h1) is connected with intermediate gear (3i), The intermediate gear (3i) engages connection with rocker-arm return gear (3d4) gear,
Both sides are hinged with supporting rod (6) below the level board (3), are equipped between the supporting rod (6) and mobile jib (2a) Supporting rod sliding block (6a), described supporting rod sliding block one end (6a) is hinged with supporting rod (6), and the supporting rod sliding block (6a) is another One end is set to supporting rod slideway (2d) inside, and locking handwheel (6b), the lock are equipped with inside the handwheel slideway (2a1) Tight handwheel (6b) is threadedly coupled with supporting rod sliding block (6a),
The Dual-output shaft motor I (1c), Dual-output shaft motor II (1d), Dual-output shaft motor III (3h), travel switch (3g), electric lifting rod (4), supply unit (1a) are electrically connected with control device (1b) respectively, and pass through control button (1g) Realize respective action.
2. a kind of multifunctional safe ladder according to claim 1, it is characterised in that:
The ladder wheel sub-wheel (5) includes wheel daughter (5a) and wheel (5b), and rotation axis is equipped among the wheel (5b) (5b1), the wheel (5b) are set to wheel daughter (5a) inside, and the wheel daughter (5a) is internal in the upper of rotation axis (5b1) Side is equipped with rotation axis sliding slot (5a1), and described wheel daughter (5a) inner upper is equipped with decoupling rod sliding slot (5a2), the rotation Decoupling rod (5c) is equipped between axis sliding slot (5a1) and decoupling rod sliding slot (5a2), the lower end the decoupling rod (5c) is equipped with lower endpiece (5c1), the lower endpiece (5c1) are set to rotation axis sliding slot (5a1) inside, and described upper end decoupling rod (5c) is equipped with upper endpiece (5c2), the upper endpiece (5c2) are located at decoupling rod sliding slot (5a2) inside, and the decoupling rod sliding slot (5a2) is internally located at The top of upper endpiece (5c2) is equipped with thrust spring (5d), and described upper end wheel daughter (5a) is equipped with connecting rod (5a3), described Connecting rod (5a3) is equipped with threaded portion (5a31), the screw thread threaded portion (5a31) internal with ladder wheel sub-wheel elevator (1h) (1h1) is fastenedly connected in hole.
3. a kind of multifunctional safe ladder according to claim 1, it is characterised in that:
The anti-slip rubber of arc is fixed on the inside of described end rocking arm (3d).
4. a kind of multifunctional safe ladder according to claim 1, it is characterised in that:
The travel switch (3g) can be Direct Action Type travel switch, rolling wheel type travel switch.
5. a kind of multifunctional safe ladder according to claim 1, it is characterised in that:
The length of the level board (3) is more than the thickness of ammeter box.
6. a kind of application method of multifunctional safe ladder according to claim 1, it is characterised in that:Including following step Suddenly:
Step 1, fixed bottom plate:
Multifunctional safe ladder is dragged into construction site, rotation ladder wheel sub-wheel (5) after placement region is found, passes through connecting rod The threaded portion (5a31) on the top (5a3) moves up and down in the threaded hole (1h1) in ladder wheel sub-wheel elevator (1h), realizes ladder wheel sub-wheel (5) upper and lower position adjusts, and adjusts the upper and lower position of four ladder wheel sub-wheels (5), it is ensured that bottom plate (1) is horizontal with ground;
Step 2 increases ladder to specified maintenance position:
Control button (1g) is pressed, Dual-output shaft motor I (1c) and Dual-output shaft motor II are driven by control device (1b) (1d) is rotated, and drives ladder mobile screw (1f) and elevating lever mobile screw (1e) rotation so that ladder (2) and electric up-down Bar (4) is moved forward and backward on bottom plate (1), while being controlled electric lifting rod (4) by control device (1b) and being raised above, Zhi Daoshui Tablet (3) front end is leaned on the wall below ammeter box service area,
When electric lifting rod (4) is raised above, ladder (2) can be rotated along mobile jib sliding block (7) upper end, at this moment be fixed on mobile jib Worm screw (2c) rotation that turbine wheel shaft (7a) on sliding block (7) promotes ladder (2) internal, worm screw (2c) and is fixed on level board (3) On same position gear (3a2) engagement connection, therefore worm screw (2c) rotation drive level board (3) surround level board (3) and ladder (2) hinged axis rotation so that level board (3) is parallel with bottom plate (1) always,
The rotation of level board (3) pushes supporting rod sliding block (6a) sliding in handwheel slideway (2a1) of supporting rod (6) lower end, when It is to tighten locking handwheel (6b) that operating personnel, which climbs to ladder (2) upper end, avoids supporting rod sliding block (6a) in operation process mobile,
When the object that level board (3) front end relies on is not metope but electric pole object, electric pole is abutted against into level board (3) In the arc-shaped slot (3a4) of front end, at this moment electric pole pushes electric pole fastening switch (3c) to move backward, electric pole fastening switch (3c) On rack (3c1) drive rocking arm limiting device (3f) rotate, unlock the locking to pawl (3d1) on rocking arm (3d), rocking arm (3d) pops up and holds tightly electric pole under the revolution force effect of torsional spring I (3d2),
When worker climbs up ladder, the pressure that wheel (5b) is subject to is more than the thrust of thrust spring (5d), and wheel daughter (5a) is fallen It is contacted with ground, further improves the stability of ladder, after reaching ladder top, power tool can be placed on level board (3) by worker On;
Step 3 recycles ladder:
After the completion of operation, locking handwheel (6b) is unclamped, ladder (2) is gone down, the pressure that wheel (5b) is subject to reduces, and is less than thrust bullet The thrust of spring (5d), wheel daughter (5a) are risen, and ground is detached from,
It presses control button (1g) and Dual-output shaft motor III (3h), Dual-output shaft motor III (3h) is driven by control device (1b) Output worm screw (3h1) pass through intermediate gear (3i) drive rocker-arm return gear (3d4) rotate so that rocking arm (3d) overcomes torsional spring The turning power of I (3d2) is detached from electric pole to level board (3) internal recovering, when the pawl (3d1) for running to upper part is stuck in rocking arm When limiting device (3f) upper limit tooth (3f1) is internal, travel switch (3g) action is cut off by control device (1b) to dual output The power supply of spindle motor III (3h) is supplied, and Dual-output shaft motor III (3h) is stopped,
It presses control button (1g) and Dual-output shaft motor I (1c), Dual-output shaft motor II (1d) is driven by control device (1b) And electric lifting rod (4) action, it shrinks electric lifting rod (4) and is moved into the right end of elevating lever slideway I (1j), it will Mobile jib sliding block (7) is moved to the left end of mobile jib slideway (1i), reduces ladder (2) height so that ladder (2) is to bottom plate (1) It draws close, the movement of convenient multi-purpose way safety ladder.
CN201710588634.7A 2017-07-19 2017-07-19 A kind of multifunctional safe ladder CN107178304B (en)

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CN201810906706.2A CN109057695B (en) 2017-07-19 2017-07-19 A kind of method for supporting of ascending a height of power construction operation

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