CN113562124A

CN113562124A - Telescopic device and using method thereof

Info

Publication number: CN113562124A
Application number: CN202110993528.3A
Authority: CN
Inventors: 聂行
Original assignee: Chongqing Xinsishenglian Technology Co ltd
Current assignee: Chongqing Xinsishenglian Technology Co ltd
Priority date: 2021-08-27
Filing date: 2021-08-27
Publication date: 2021-10-29

Abstract

The invention relates to the technical field of ship lifesaving equipment, in particular to a telescopic device and a using method thereof, wherein the telescopic device comprises a platform, a fixed ladder, a first slide, a second slide, a safety belt component, a pull rope fixing component, a pulling-up component, a safety pull belt component, a plurality of bottom end fixing components and pull ropes; the telescopic device is provided with the fixed ladder, the first slide and the second slide, a telescopic sliding function is provided for the telescopic device, the flexibility of the telescopic device is improved, the pulling-up efficiency of the first slide and the second slide is improved through the pulling-up component and the pull rope, the situation that the pull rope is worn or wound and twisted during the pulling-up process is reduced, the safety waistband component and the safety pull belt component are arranged, climbing protection is provided for passengers, the risk of falling in midway is reduced, the bottom end fixing component is arranged at the bottom of the second slide, and severe shaking of the telescopic device during use is reduced.

Description

Telescopic device and using method thereof

Technical Field

The invention relates to the technical field of ship lifesaving equipment, in particular to a telescopic device and a using method thereof.

Background

With the development of marine fishery, over-fishing for many years and increasingly serious environmental pollution, a plurality of coastal sea areas can be caught without fish, and the culture scale cannot be continuously enlarged. Coastal ocean resources have not been able to meet the needs of people, which "forces" people to move gradually to deeper ocean areas. Therefore, in recent years, the deep sea culture and fishing industry is rapidly developed, and a large amount of novel marine fishery equipment is also appeared.

The offshore platforms comprise offshore oil drilling platforms, offshore oil production platforms, living platforms, offshore oil storage platforms, offshore operation platforms and the like. These platforms are life-cycle and not left free from the operational support of the various vessels, such as cargo handling, supply, platform personnel shift, emergency evacuation and rescue, assistance with platform maintenance, shuttle tankers for cargo handling, and the like. In the operation processes, the personnel can get on the platform from the ship or from the platform to the ship, and the personnel can get on the platform.

The invention of publication number CN201510868123.1 discloses a telescopic offshore platform boarding suspension ladder, which comprises a main ladder, a telescopic ladder, a boarding ladder and an electrical control system. The inner side of a main beam of the main ladder is of a groove-shaped slideway structure; the extension ladder comprises an extension ladder main beam, guide roller groups symmetrically arranged on the outer side surface of the front end of the extension ladder main beam and double-lug seats symmetrically fixed on the upper surface of the rear end of the extension ladder main beam, wherein the guide roller groups are embedded in a main beam groove-shaped slideway of the main ladder, and the extension ladder rolls and slides along the main beam groove-shaped slideway of the main ladder through the guide roller groups; the ship building ladder comprises a ship building ladder main beam, wherein the single lugs are symmetrically fixed at the front end part of the ship building ladder main beam, and the ship building ladder is hinged and installed with the double lug seats of the extension ladder through the single lugs. In the distance range of different height differences between the ship and the offshore platform, the ship carrying ladder is carried on the deck of the ship by controlling the extension and retraction of the extension ladder to have different lengths, and therefore people can be ensured to smoothly board the ship from the ship to the platform or from the platform to the ship.

The invention with publication number CN201510089555.2 discloses a round wooden boarding rope ladder, in particular to a boarding rope ladder formed by tying a round wooden step and a rope, and the technical scheme is as follows: the round wooden boarding rope ladder has the advantages that the round wooden excellent is adopted as the step, the fixing grooves and the rope penetrating holes are formed in the positions close to the two ends of the wooden excellent, the wooden excellent is tied on the 2 main ropes made of coarse fibers through the thin fiber ropes, and the shackle and the lantern ring are arranged, so that the round wooden boarding rope ladder is manufactured; the limit that people are marked time by the non-circular when climbing the rope ladder is avoided, the efficiency and the comfort level of the rope ladder are improved, and the safety is enhanced.

However, the above patents still have the following problems:

(1) most of the existing boarding devices are integrated ladders fixed on a platform, so that the ladder is not high in operability and not flexible enough, and inconvenience is brought to maintenance and repair of the ladder.

(2) In the climbing process of the boarding personnel, the protection measures for the personnel are not in place, and the falling risk of the personnel is higher.

(3) The bottom of the boarding device is free of fixed measures, and the boarding device is easy to shake in the boarding process, so that people are difficult to climb.

(4) The boarding device is mostly of a middle lifting structure, and the condition that the pull rope at the outlet end is worn or wound and twisted is easy to occur.

Disclosure of Invention

The invention provides a telescopic device aiming at the problems in the prior art, and aims to solve the problems that most of the existing boarding devices are integrated ladders fixed on a platform, the existing boarding devices are low in operability and flexibility and bring inconvenience to the maintenance and repair of ladders, protection measures for personnel are not in place in the climbing process of the boarding personnel, the personnel fall risk is high, the bottoms of the boarding devices are not provided with fixed measures, the boarding devices are easy to shake in the climbing process, the climbing is difficult, the boarding devices are mostly of middle hoisting structures, and the condition that pull ropes at the outlet ends are easy to wear or wind and twist is easy to be caused. The invention further provides a using method of the telescopic device, which is used for solving the problems that the device is damaged due to misoperation of operators easily, the device is stuck in the process of folding or lowering the device and the like

The basic scheme of the invention is as follows: the telescopic device comprises a platform, a fixed ladder, a first slide, a second slide, a safety waistband assembly, a pull rope fixing assembly, a pulling-up assembly, a safety pull belt assembly, a plurality of bottom end fixing assemblies and pull ropes;

the utility model discloses a safe drawstring subassembly, including fixed ladder, first slide, stay cord subassembly, stay cord fixed subassembly, safety belt subassembly, first slide and fixed ladder sliding connection, the fixed ladder side of platform, first slide and fixed ladder sliding connection, second slide and first slide sliding connection, the safety belt subassembly respectively with fixed ladder, first slide and second fixed ladder sliding connection, the platform top is arranged in to the subassembly that rises and stay cord fixed subassembly, stay cord one end is fixed on the stay cord fixed subassembly, the other end of stay cord is fixed on the subassembly that rises, the radial lock of stay cord is leaned on in the second slide periphery, the second slide promotes or transfers the second slide fast through stay cord subassembly pulling or loosening, the platform side is arranged in to the safety belt subassembly, the safety belt subassembly is connected with the safety belt subassembly, and is a plurality of second slide side bottom is arranged in to the bottom fixed subassembly symmetry.

The invention is provided with a fixed ladder, a first slide and a second slide, which provide the device with a telescopic sliding function and improve the flexibility of the device, a stay cord fixing component is arranged to fix one end of a stay cord, the stay cord passes through the periphery of the second slide, the other end of the stay cord is pulled up by a pulling up component to finish the pulling up operation of the second slide, the pulling up efficiency of the first slide and the second slide is improved, the situation that the stay cord is worn or wound during the pulling up process is reduced, a safety waistband component and a safety pull belt component are arranged to provide climbing protection for passengers and reduce the risk of falling in midway, a bottom end fixing component is arranged at the bottom of the second slide, and the second slide is fixed relative to the side edge of a platform when the lowest end below the second slide is arranged, so that the device is prevented from shaking violently during the use.

Further, the fixed ladder comprises two fixed ladder frames, a plurality of first pedals, a platform handrail, a first handrail groove, a plurality of first support rods, a first handrail and a first sliding groove;

the two fixed ladder frames are symmetrically arranged at two sides of the first pedals, the first pedals are uniformly arranged in a straight line at intervals, the back parts of the two fixed ladder frames are respectively provided with a platform handrail formed by enclosing and lapping a cylindrical pipe, the back parts of the two fixed ladder frames are respectively provided with a plurality of fixed blocks which are uniformly arranged at intervals, the other ends of the fixed blocks are fixed at the side surface of the platform, the fixed ladders are fixed at the bottoms of the platform handrails by the fixed blocks and are fixed at the top of the platform, the front part of the fixed ladder frame is provided with a first handrail groove which is of a rectangular groove structure, the first supporting rod is characterized in that a plurality of first pin shafts which are arranged in a straight line are arranged in the first supporting rod groove, the bottoms of the first supporting rods are hinged to the first pin shafts respectively, the tops of the first supporting rods are hinged to the first supporting rods, a first sliding rail is arranged on each first supporting rod, and a first sliding groove is formed in the side edge of the fixed ladder frame.

Fixed ladder frame is fixed at the platform side, fix this fixed ladder at the platform top through the platform handrail, when stepping on crew from the bottom to the platform or from the platform down to the bottom, platform handrail and first pole of holding up provide hand impetus for the crew of stepping on, reduce the difficulty when climbing up, play the effect of protection to personnel simultaneously, first pole of holding up is accomodate at first pole inslot when the device is packed up, pop out when transferring, it supplies safety belt subassembly orbit to be equipped with first slide rail at first pole top of holding up, when the crew is stepped on in the protection, do not influence the shrink of device again.

Further, the first slide comprises two first slide frames, a second holding rod groove, a plurality of second pedals, a plurality of second pins, a second chute, a plurality of first sliding wheels, a plurality of second holding rods and a second holding rod;

the two first slide ladder frames are symmetrically arranged on two sides of the plurality of second pedals, the plurality of second pedals are uniformly arranged in a straight line at intervals, a second sliding groove is formed in the side edge of each first slide ladder frame, a plurality of first sliding wheels are symmetrically arranged in the second sliding groove, the first sliding wheels are connected with the first sliding grooves in a sliding mode, and a plurality of second sliding wheels are symmetrically arranged on the outer side of each first slide ladder frame; the front portion of the first slide ladder frame is provided with a second holding rod groove, the second holding rod groove is of a rectangular groove structure, a plurality of second pin shafts which are arranged in a straight line are arranged in the second holding rod groove, the bottoms of the second supporting rods are hinged to the second pin shafts respectively, the tops of the second supporting rods are hinged to the second holding rods, and second sliding rails are arranged on the second holding rods.

First slide is as connecting the middle ladder of fixed ladder and second slide, except having the fixed ladder function such as the protection of riding on, still sets up first movable pulley and bottom outside in first slide top inboard, supplementary first slide slides on the fixed ladder, supplementary second slide slides on first slide, has improved the unobstructed shape that the device packed up or the below, and first movable pulley supports through leaning on with first spout bottom, stops to transfer.

Further, the second slide comprises two second slide frames, a third supporting rod groove, a plurality of third pedals, a plurality of third pin shafts, a pull rope fixing block, a pull belt fixing block, a third sliding groove, a plurality of third supporting rods, a third supporting rod, a third sliding rail, a top limiting plate and a bottom limiting plate;

the two second slide ladder frames are symmetrically arranged on two sides of a plurality of third pedals, the plurality of third pedals are arranged in a straight line and are uniformly spaced, the side edge of each second slide ladder frame is provided with a third chute, the third chute is in sliding connection with a second sliding wheel, the top of the third chute is provided with a top limiting plate, the bottom of each second slide ladder is provided with a bottom limiting plate, the two sides of each second slide ladder are symmetrically provided with a plurality of stay rope fixing blocks which are uniformly spaced, the side edge of each second slide ladder is provided with a pull rope fixing block, the pull rope fixing block is provided with two pull rope grooves, the front part of each second slide ladder frame is provided with a third supporting rod groove, each third supporting rod groove is of a rectangular groove structure, a plurality of third pin shafts which are arranged in a straight line are arranged in each third supporting rod groove, the bottoms of the third supporting rods are respectively hinged with a plurality of third pin shafts, and the tops of the third supporting rods are all hinged with third supporting rods, a third slide rail is arranged on the third supporting rod;

the guide pulley assembly comprises a plurality of guide pulley fixing plates, a first guide pulley and a second guide pulley, the first guide pulley and the second guide pulley are arranged in the middle of the two guide pulley fixing plates which are symmetrically installed, the first guide pulley and the second guide pulley are respectively connected with the guide pulley fixing plates in a rotating mode, and the pull rope is arranged between the first guide pulley and the second guide pulley. The safety belt component comprises a belt, a storage frame, a lock tongue, a lock catch, a plurality of sliding belts, a sliding block, a binding belt and a locking end;

the second slide is used as a bottom ladder of the device, has the functions of boarding protection, holding rod ejection and the like of the fixed ladder, and also has the main function of assisting the device in ascending and descending, when the second slide descends to the lowest position, the top limiting plate abuts against the second sliding wheel, the second slide stops sliding downwards, in the ascending process of the second slide, the bottom limiting plate is abutted against the bottom of the first slide to push the first slide to move upwards, the outer side of the second slide is provided with uniformly distributed stay cord fixing blocks, a stay cord penetrates through the stay cord fixing blocks to avoid the problems of falling or winding of the stay cord during movement from influencing the folding and unfolding operations of the device, the bottom of the second slide is provided with a guide wheel assembly, and by arranging a first guide wheel and a second guide wheel, the rope is assisted to move at the bottom, so that the resistance and the abrasion of the rope in the moving process are reduced, and the power loss of the device in the retracting or putting down process is reduced.

Further, the band is flexible banding structure, band one end swing joint has the spring bolt, band other end fixedly connected with hasp, the band length of spring bolt and hasp locking can be adjusted to the one end that can stimulate the band, the band both sides are equipped with a plurality of sliding strips, the sliding strip goes out the end and is equipped with the sliding block, sliding block and first slide rail, second slide rail and third slide rail sliding connection, the joint has a plurality of thing frames and a plurality of instrument fastener of putting on the band, be equipped with on the band and take elastic bandage, the bandage goes out the end and is equipped with the locking end.

The belt one end is connected on the spring bolt, can stimulate the belt and adjust the size of belt locking, the suitability of this safety belt subassembly has been improved, the belt outer carriage is equipped with a plurality of thing frames and a plurality of instrument fastener of putting, can be used for preventing instrument or other takeout article, it fixes on safety belt subassembly to reduce to lead to grabbing to take shakiness bandage play end because of article or instrument are held to the hand, for the climbing personnel provide ascending pulling force, alleviate climbing personnel's physical demands, and dual safety insurance is provided.

Further, the bottom fixing component comprises a connecting main board, a connecting vertical board, two connecting rods, a connecting groove board, a sliding rod, a sliding groove, an elastic block, an elastic rod, a hook block and an adsorption block;

the connecting main board is fixed at the bottom end of the back of the second slide ladder frame, the connecting vertical board is arranged in the middle of the connecting main board, the front end of the connecting vertical board is hinged with the front ends of two connecting rods symmetrically distributed on two sides of the connecting vertical board, the rear end of the connecting vertical board is hinged with the rear end of the connecting groove board, a sliding groove is formed in the middle of the connecting groove board, the sliding rod is arranged at the bottom of the connecting rod and is in sliding connection with the sliding groove, the elastic rod is arranged on the inner side of the connecting groove board, an elastic block with a trapezoidal block structure is arranged at the top of the elastic rod, a spring is arranged at the bottom of the elastic block, namely outside the elastic rod, and when the sliding rod slides to the rear end of the sliding groove, the sliding rod presses down the elastic block and then passes over the elastic block to be clamped at the rear end of the sliding groove;

connect the frid front end and rotate and be connected with the hook piece and adsorb the piece, the hook piece includes hook rod and drag hook, it includes absorption pole, rotary rod, annular arm-tie and a plurality of sucking disc to adsorb the piece, the hook rod bottom is articulated with being connected the frid front end, the hook rod top is equipped with free rotation's drag hook, it is articulated with being connected the frid front end to adsorb the pole bottom, it is equipped with rather than articulated rotary rod to adsorb the pole top, the rotary rod top is equipped with annular arm-tie, annular arm-tie top is equipped with a plurality of sucking discs that can dismantle the change.

The device bottom is arranged in to bottom mounting plate subassembly, fix the device bottom under the state of putting, it violently rocks to reduce the device to appear, adopt the fixed mode of two kinds of differences, can select to pull to lean on fixedly or adsorb fixedly according to actual conditions, bottom mounting assembly convenience and the suitability to the different situation have been improved, when connecting the frid and connecting the mainboard for the right angle, through the locking of bullet piece to the slide bar, reach the locking to connecting the frid, can pack up this bottom mounting assembly easily when the second slide is packed up, do not occupy too much space.

Further, the safety drawstring assembly comprises a drawstring machine head and a drawstring, wherein the drawstring machine head comprises a machine head fixing plate, a rotary table, a righting rod, a baffle and a locking block;

inside the stretching strap aircraft nose is arranged in to the stretching strap upper end, the stretching strap lower extreme alternates in the stretching strap groove, the aircraft nose fixed plate is fixed the aircraft nose at the platform lateral part through with platform side bolted connection, aircraft nose side bottom is arranged in to the carousel, it arranges the aircraft nose top in to right the pole, the aircraft nose front end is arranged in to the baffle, the inside latch segment that is equipped with a plurality of mobility control of aircraft nose, it detains to be equipped with the even stretching strap in a plurality of intervals on the stretching strap, the activity joint is detained with the stretching strap to the latch segment, the latch segment has the latch segment of the stretching strap of latch end with not the joint.

The locking elastic rod is replaced by the locking elastic rod, and comprises a rod body, a sleeve, a supporting column and a compression spring;

the rod body is a cylindrical tubular structure with the lower end closed, the bottom of the support column is fixed at the bottom of the rod body, the sleeve is arranged on the outer side of the rod body and is movably connected with the rod body, a plurality of locking blocks are symmetrically arranged on the top of the sleeve, the rear ends of the first holding rod, the second holding rod and the third holding rod are respectively provided with a locking block bayonet, after the first holding rod, the second holding rod and the third holding rod are popped out, the locking block is clamped and locked with the locking block bayonet, the top of the rod body is provided with a holding rod connecting block with a hole in the middle, the holding rod connecting block is respectively hinged with the first holding rod, the second holding rod and the third holding rod, the bottom of the sleeve is provided with a clamping slide block, the top of the compression spring is propped against the bottom of the sleeve, the bottom of the compression spring is propped against the bottom end in the rod body, the utility model discloses a slide bar, including the body of rod, the body of rod outer wall sliding connection have run through the body of rod and the movable joint of joint slider press the slider, press the slider the position and the top of the first slide of its sliding connection's next stage or second slide to lean on the contact.

Further, the pulling-up assembly comprises a motor, a first coupling, a brake, a speed reducer, a second coupling and a roller; the speed reducer comprises an input shaft and an output shaft, the output end of the motor is connected with the input shaft through a first coupler, and the output shaft is connected with one end of the roller through a second coupler.

Hold up the pole at first, the pole is held up to the second and the pole is popped out the back is held up to the third, sleeve pipe top locking piece joint is in locking piece bayonet socket department, the locking elastic rod can be automatic hold up the pole to first, the pole is held up to the second and the pole is locked to the third, prevent that first pole is held up to the second, pole and third are held up to the second and are held up the pole and take place to rock in the use, influence operating personnel climbing, when packing up, first slider and two slides support and lean on the slider of pressing on the extrusion locking elastic rod, and then promote joint slider downstream, the sleeve pipe drives the locking piece and descends, first pole and second are held up to the pole and are received back in first pole groove and the second pole groove of holding up to the pole.

The using method of the telescopic device comprises the following steps:

s1, in an initial state, the brake locks an input shaft, the roller tensions a pull rope, the first slide and the second slide ascend to the highest stroke final position, the first slide, the second slide and the fixed ladder are folded, the first holding rod, the second holding rod and the third holding rod are respectively clamped in the first holding rod groove, the second holding rod groove and the third holding rod groove, the plurality of locking blocks are clamped on a pull belt opening, and the connecting groove plate is folded and buckled on a connecting main plate;

s2, when the slide is put down, the brake loosens the input shaft, the second slide depends on self gravity and descends steadily along the outer wall of the first slide until the top limiting plate abuts against the second sliding wheel, and the first slide slides downwards along the outer wall of the fixed slide until the first sliding wheel abuts against the bottom of the first sliding groove.

S3, the first supporting rod, the second supporting rod and the third supporting rod are popped out, the first holding rod, the second holding rod and the third holding rod are driven to pop out respectively until the first supporting rod, the second supporting rod and the third supporting rod are perpendicular to the first holding rod, the second holding rod and the third holding rod respectively, the locking block at the top of the locking elastic rod is clamped and locked with the bayonet of the locking block, the first supporting rod, the second supporting rod and the third supporting rod are different in length, and the first sliding rail, the second sliding rail and the third sliding rail are guaranteed to be communicated on a straight line after being popped out.

S4, put down the connection frid until connection frid and connection mainboard are in the vertical state, the slide bar crosses bullet piece chucking to the slide groove rear end this moment, according to actual conditions, at the platform lateral wall department that is equipped with the pull ring, rotates pull out the hooked pole, rotates the drag hook couple on the pull ring, on being equipped with adsorbable lateral wall platform, can rotate and pull out the absorption pole, adsorb the sucking disc on the lateral wall to reach the purpose of fixing the device bottom.

S5, winding the strap at the waist, inserting the lock tongue into the lock catch to be clamped, placing the sliding block in the third sliding rail, clamping the locking end in the draw belt buckle at the bottom, unlocking the draw belt buckle at the top by the locking block at the moment, and enabling the draw belt clamped with the strap to be in an upward pulling state.

S6, after the person finishes boarding, taking down the locking end from the pull belt buckle, sliding the sliding block out of the top of the first sliding rail, withdrawing the hook block or the adsorption block into the connecting groove plate, pulling the elastic rod to enable the elastic block to descend, sliding the sliding rod out of the rear end of the sliding groove, fixing the connecting groove plate on the connecting main board, rotating the motor driving roller to wind the pull rope, pulling the second sliding board to move upwards by the pull rope, pushing the first sliding rod to move upwards by a bottom limiting block at the bottom of the second sliding board, in the process of moving upwards, enabling the top ends of the second sliding board and the first sliding board to abut against the pressing sliding block, enabling the clamping sliding block to slide downwards by colliding the pressing sliding block, enabling the sleeve to move downwards, enabling the lock block to be separated from the lock block bayonet, enabling the first holding rod and the second holding rod to respectively retract into the first holding rod groove and the second holding rod groove, and pulling the third holding rod to be placed in the third holding rod groove.

The working principle and the advantages of the invention are as follows:

(1) the fixing ladder 2, the first slide 3 and the second slide 4 are adopted, so that the telescopic sliding function is provided for the device, and the flexibility of the device is improved;

(2) according to the invention, the pull rope fixing component 6 is arranged to fix one end of the pull rope 12, the pull rope 12 passes through the periphery of the second slide 4, and the other end of the pull rope 12 is pulled up through the pulling-up component 7, so that the pulling-up operation of the second slide 4 is completed, the pulling-up efficiency of the first slide 3 and the second slide 4 is improved, and the condition that the pull rope 12 is worn or wound and twisted during the pulling-up process is reduced;

(3) the safety belt component 5 and the safety pull belt component 8 are arranged, so that climbing protection is provided for passengers, and the risk of falling in midway is reduced;

(4) according to the invention, the bottom end fixing component 9 is arranged at the bottom of the second slide 4, and when the lowest end below the second slide 4 is arranged, the second slide 4 is fixed relative to the side edge of the platform, so that the phenomenon that the device shakes violently in the use process is reduced.

Drawings

FIG. 1 is a schematic view of the lower portion of the telescopic device of the present invention;

FIG. 2 is a schematic view of the retractable device of the present invention in a retracted state;

FIG. 3 is a schematic view of a first slide of the telescopic device of the present invention;

FIG. 4 is a schematic view of a second slide of the telescopic device of the present invention;

FIG. 5 is a partial enlarged view of portion A of FIG. 4;

FIG. 6 is a schematic view of the configuration of the bottom end fixing assembly of the extension-type device of the present invention;

FIG. 7 is a schematic view of the construction of a lap belt assembly of the telescopic device of the invention;

FIG. 8 is a schematic view of a handpiece of the telescopic device of the present invention;

FIG. 9 is a schematic view of a pulling assembly of the telescopic device of the present invention;

FIG. 10 is a schematic view showing the construction of a locking resilient lever in the telescopic device of the present invention;

reference numerals referred to in the drawings are:

a platform 1;

a fixed ladder 2; a fixed ladder frame 201; a first pedal 202; a platform arm rest 203; a first handrail groove 204; a first strut 205; a first rest bar 206; a first chute 207; a fixed block 208; a first slide rail 209;

a first slide 3; a first slide frame 301; a second handrail groove 302; a second pedal 303; a second pin 304; a second chute 305; a first pulley 306; a second sliding wheel 307; a second strut 308; a second rest bar 309; a second slide rail 310;

a second slide 4; a second slide frame 401; a third handrail groove 402; a third pedal 403; a third pin 404; a rope fixing block 405; a fixed block 406 of a pull belt; a third chute 408; a third strut 409; a third rest bar 410; a third slide rail 411; a top limiting plate 412; a bottom limiting plate 413;

a lap belt assembly 5; a strap 501; a placement frame 502; a latch bolt 503; a latch 504; a slide belt 505; a slider 506; a binding band 507; a locking end 508;

a pull rope fixing component 6;

a pulling-up assembly 7; a motor 701; a first coupling 702; a brake 704; a reducer 705; a second coupling 707; a drum 708;

a safety drawstring assembly 8; a draw tape 801; a pull buckle 802; a handpiece fixing plate 803; a turntable 804; a centralizing bar 805; a baffle 806; a locking block 807;

a bottom end fixing component 9; a connection main board 901; connecting a riser 902; a connecting rod 903; a connecting groove plate 904; a slide bar 905; a slide groove 906; a bullet block 907; a spring rod 908; a hook lever 909; a draw hook 910; an adsorption pole 911; a rotating rod 912; an annular tie plate 913; a plurality of suction cups 914;

a guide wheel assembly 10; a guide wheel fixing plate 1001; first guide pulley 1002; a second guide pulley 1003;

a locking spring rod 11; a mast body 1101; a sleeve 1102; a support post 1103; a clamping slide block 1104; pressing the slider 1105; a compression spring 1106; a lock block 1107; a handrail connecting block 1108.

Detailed Description

The following is further detailed by the specific embodiments:

the first embodiment is as follows:

as shown in fig. 1-10, the telescopic device comprises a platform 1, a fixed ladder 2, a first slide 3, a second slide 4, a safety belt assembly 5, a pull rope fixing assembly 6, a pulling-up assembly 7, a safety pull belt assembly 8, a plurality of bottom end fixing assemblies 9 and a pull rope 12;

fixed ladder 2 fixed mounting is in the side of platform 1, first slide 3 and fixed ladder 2 sliding connection, second slide 4 and 3 sliding connection of first slide, safety belt subassembly 5 respectively with fixed ladder 2, first slide 3 and 4 sliding connection of second fixed ladder, platform 1 top is arranged in to lift subassembly 7 and stay cord fixed subassembly 6, stay cord 12 one end is fixed on stay cord fixed subassembly 6, the other end of stay cord 12 is fixed on lifting subassembly 7, stay cord 12 radially locks at second slide 4 peripherally, second slide 4 promotes or transfers second slide 4 fast through stay cord subassembly 7 pulling or unclamping stay cord 12, platform 1 side is arranged in to safety belt subassembly 8, safety belt subassembly 5 is connected with safety belt subassembly 8, second slide 4 side bottom is arranged in to a plurality of bottom mounting subassembly 9 symmetries.

The invention is provided with a fixed ladder 2, a first slide 3 and a second slide 4, which provides the device with the function of telescopic sliding and improves the flexibility of the device, a stay cord fixing component 6 is arranged to fix one end of a stay cord 12, the stay cord 12 passes through the periphery of the second slide 4, the other end of the stay cord 12 is pulled up by the pulling-up component 7, the pulling-up operation of the second slide 4 is completed, the pulling-up efficiency of the first slide 3 and the second slide 4 is improved, the situation that the stay cord 12 is worn or wound and twisted during the pulling-up process is reduced, the safety waistband component 5 and the safety pull belt component 8 are arranged, climbing protection is provided for boarding personnel, the risk of falling in midway is reduced, the bottom end fixing component 9 is arranged at the bottom of the second slide 4, when the lowest end below the second slide 4, the second slide 4 is fixed relative to the side edge of the platform, so that the phenomenon that the device shakes violently in the use process is reduced.

The fixed ladder 2 comprises two fixed ladder frames 201, a plurality of first pedals 202, a platform handrail 203, a first handrail groove 204, a plurality of first support bars 205, a first handrail 206 and a first chute 207;

two fixed ladder frames 201 are symmetrically arranged on two sides of a plurality of first pedals 202, a plurality of first pedals 202 are arranged in a straight line at uniform intervals, two fixed ladder frame 201 backs are all provided with platform handrails 203 formed by enclosing and lapping a cylindrical pipe, two fixed ladder frame 201 backs are all provided with a plurality of fixed blocks 208 arranged in a uniform interval, the other ends of the fixed blocks 208 are fixed on the side surface of the platform 1, a plurality of fixed blocks 208 fix a fixed ladder 2 at the bottom of the platform handrail 203 and fixed at the top of the platform 1, the front part of the fixed ladder frame 201 is provided with a first handrail groove 204, the first handrail groove 204 is of a rectangular groove structure, the inside of the first handrail groove 204 is provided with a plurality of first pin shafts arranged in a straight line shape, the bottoms of a plurality of first support rods 205 are respectively hinged with a plurality of first pin shafts, the tops of a plurality of first support rods 205 are all hinged with a first handrail 206, a first slide rail 209 is arranged on the first handrail 206, and the side edge of the fixed ladder frame 201 is provided with a first slide groove 207.

Fixed ladder frame 201 is fixed at platform 1 side, fix this fixed ladder 2 at platform 1 top through platform handrail 203, when the personnel of riding from the bottom up to platform 1 or from platform 1 down to the bottom, platform handrail and first pole 206 provide the hand impetus for the personnel of riding, difficulty when reducing the climbing, simultaneously play the effect of protection to personnel, first pole 206 is accomodate in first pole groove 204 when the device is packed up, pop out when transferring, be equipped with first slide rail 209 at first pole 206 top and supply safe waistband subassembly 5 orbit, when the personnel of riding is being protected, do not influence the shrink of the device again.

The first slide 3 comprises two first slide frames 301, a second handrail groove 302, a plurality of second pedals 303, a plurality of second pins 304, a second chute 305, a plurality of first sliding wheels 306, a plurality of second sliding wheels 307, a plurality of second struts 308 and second handrails 309;

the two first slide ladder frames 301 are symmetrically arranged on two sides of the plurality of second pedals 303, the plurality of second pedals 303 are uniformly arranged in a straight line at intervals, a second sliding groove 305 is formed in the side edge of the first slide ladder frame 301, a plurality of first sliding wheels 306 are symmetrically arranged in the second sliding groove 305, the first sliding wheels 306 are slidably connected with the first sliding groove 207, and a plurality of second sliding wheels 307 are symmetrically arranged on the outer side of the first slide ladder frame 301; first slide ladder 301 front portion is equipped with second handrail groove 302, and second handrail groove 302 is rectangular groove structure, and second handrail groove 302 is inside to be equipped with the second round pin axle 304 that a plurality of lines were arranged, and a plurality of second branch 308 bottoms are articulated with a plurality of second round pin axles 304 respectively, and a plurality of second branch 308 tops all hold up pole 309 with the second and articulate, are equipped with second slide rail 310 on the second holds up pole 309.

First slide 3 is as connecting the middle ladder of fixed ladder 2 and second slide 4, except having the fixed ladder 2 function such as the protection of riding on, still set up first movable pulley 306 and bottom outside at first slide top inboard and set up second movable pulley 306, supplementary first slide 3 slides on fixed ladder 2, supplementary second slide 4 slides on first slide 3, it packs up or the unobstructed shape of below to have improved the device, first movable pulley 306 supports through leaning on with first spout 207 bottom, stop transferring.

The second slide 4 comprises two second slide frames 401, a third holding rod groove 402, a plurality of third pedals 403, a plurality of third pin shafts 404, a pull rope fixing block 405, a pull belt fixing block 406, a third chute 408, a plurality of third support rods 409, a third holding rod 410, a third slide rail 411, a top limiting plate 412 and a bottom limiting plate 413;

two second slide ladder frames 401 are symmetrically arranged at two sides of a plurality of third pedals 403, the plurality of third pedals 403 are uniformly arranged in a straight line at intervals, the side edge of the second slide ladder frame 401 is provided with a third chute 408, the third chute 408 is in sliding connection with a second sliding wheel 307, the top of the third chute 408 is provided with a top limit plate 412, the bottom of the second slide 4 is provided with a bottom limit plate 413, the two sides of the second slide 4 are symmetrically provided with a plurality of stay cord fixing blocks 405 which are uniformly distributed at intervals, the side edge of the second slide 4 is provided with a stay cord fixing block 406, the stay cord fixing block 406 is provided with two stay cord grooves 407, the front part of the second slide ladder frame 401 is provided with a third handrail groove 402, the third handrail groove 402 is in a rectangular groove structure, a plurality of third pin shafts 404 which are arranged in a straight line are arranged in the third handrail groove 402, the bottoms of a plurality of third support bars 409 are respectively hinged with the plurality of third pin shafts 404, the tops of the third support bars 409 are all hinged with third handrail 410, a third slide rail 411 is arranged on the third handrail 410;

the two guide wheel assemblies 10 are symmetrically arranged at the bottom of the second slide 4, each guide wheel assembly 10 comprises a plurality of guide wheel fixing plates 1001, a first guide wheel 1002 and a second guide wheel 1003, the first guide wheel 1002 and the second guide wheel 1003 are arranged in the middle of the two guide wheel fixing plates 1001 which are symmetrically arranged, the first guide wheel 1002 and the second guide wheel 1003 are respectively connected with the guide wheel fixing plates 1001 in a rotating mode, and the pull rope 12 is arranged between the first guide wheel 1002 and the second guide wheel 1003.

The second slide 4 is used as the bottom slide of the device, besides the functions of riding protection, pole pop-up and the like of the fixed slide 2, the main function of assisting the device in ascending and descending is undertaken, when the second slide 4 descends to the lowest position, the top limiting plate 412 is abutted against the second sliding wheel 307, the second slide 4 stops sliding downwards, when the second slide 4 ascends, the bottom limiting plate 413 is abutted against the bottom of the first slide 3 to push the first slide 3 to move upwards, the outer side of the second slide 4 is provided with uniformly distributed pull rope fixing blocks 405, the pull ropes 12 penetrate through the pull rope fixing blocks 405 to avoid the problems that the pull ropes 12 fall off or are wound during movement to influence the retracting and releasing operation of the device, the bottom of the second slide 4 is provided with a guide wheel assembly 10, and the pull ropes 12 move at the bottom by arranging the first guide wheel 1002 and the second guide wheel 1003, so as to reduce the resistance and the abrasion of the pull ropes 12 during movement, reducing power consumption of the device 4 during stowing or lowering.

Example two:

The lap belt assembly 5 includes a strap 501, a storage frame 502, a latch 503, a catch 504, a plurality of sliding straps 505, a sliding block 506, a strap 507, and a locking end 508;

the band 501 is flexible banding structure, band 501 one end swing joint has spring bolt 503, band 501 other end fixedly connected with hasp 504, spring bolt 503 and hasp 504 activity joint, the band 501 length of spring bolt 503 and hasp 504 locking can be adjusted to the one end that can stimulate band 501, band 501 both sides are equipped with a plurality of sliding strips 505, sliding strip 505 play end is equipped with sliding block 506, sliding block 506 and first slide rail 209, second slide rail 310 and third slide rail 411 sliding connection, the joint has a plurality of thing frames 502 and a plurality of instrument fastener 509 on the band, be equipped with on the band 501 and have elastic bandage 507, bandage 507 play end is equipped with locking end 508.

The safety pull belt assembly 8 comprises a pull belt machine head and a pull belt 801, wherein the pull belt machine head comprises a machine head fixing plate 803, a rotary table 804, a righting rod 805, a baffle 806 and a locking block 807;

inside the stretching strap aircraft nose is arranged in to stretching strap 801 upper end, stretching strap 801 lower extreme alternates in stretching strap groove 407, aircraft nose fixed plate 803 is fixed the aircraft nose at the platform 1 lateral part through with platform 1 side bolted connection, aircraft nose side bottom is arranged in to carousel 804, the aircraft nose top is arranged in to centering rod 805, the aircraft nose front end is arranged in to baffle 806, the inside latch segment 807 that is equipped with a plurality of swing control of aircraft nose, 802 is detained to the stretching strap that is equipped with a plurality of intervals evenly on the stretching strap, 802 swing joint is detained to locking end 508 and stretching strap, 802 joint is detained to latch segment 807 and the stretching strap that does not joint have locking end 508.

Belt 501 one end is connected on spring bolt 503, can stimulate belt 501 to adjust the size that belt 501 locked, the suitability of this safety belt subassembly has been improved, belt 501 outer car is equipped with a plurality of thing frames 502 and a plurality of instrument fastener 509 of putting, can be used for preventing instrument or other takeaway article, it fixes on safety belt subassembly 8 to reduce because of article or instrument result in grabbing to take shakiness binding tape 507 the end because of the hand holds, upwards pulling force is provided for the climbing personnel, alleviate climbing personnel's physical demands, and double safety insurance is provided.

The bottom fixing component 9 comprises a connecting main board 901, a connecting vertical board 902, two connecting rods 903, a connecting groove board 904, a sliding rod 905, a sliding groove 906, an elastic block 907, an elastic rod 908, a hook block and an adsorption block;

the connecting main board 901 is fixed at the bottom end of the back of the second slide ladder frame 401, the connecting vertical board 902 is arranged in the middle of the connecting main board 901, the front end of the connecting vertical board 902 is hinged with the front ends of two connecting rods 903 symmetrically distributed at two sides of the connecting vertical board, the rear end of the connecting vertical board 902 is hinged with the rear end of the connecting groove board 904, a sliding groove 906 is arranged in the middle of the connecting groove board 904, a sliding rod 905 is arranged at the bottom of the connecting rod 903 and is in sliding connection with the sliding groove 906, an elastic rod 908 is arranged inside the connecting groove board 904, an elastic block 907 with a trapezoid block structure is arranged at the top of the elastic rod 908, a spring is arranged at the bottom of the elastic block 907, namely outside the elastic rod 908, and when the sliding rod 903 slides to the rear end of the sliding groove 906, the elastic block 907 is pressed down and then passes over the elastic block 907 to be tightly clamped at the rear end of the sliding groove 906;

connect the frid 904 front end and rotate and be connected with the hook piece and adsorb the piece, the hook piece includes hook 909 and drag hook 910, adsorb the piece including adsorbing pole 911, rotary rod 912, annular arm-tie 913 and a plurality of sucking disc 914, hook 909 bottom is articulated with the frid 904 front end of being connected, hook 909 top is equipped with free rotation's drag hook 910, it is articulated with the frid 904 front end of being connected to adsorb pole 911 bottom, it is equipped with rather than articulated rotary rod 912 to adsorb pole 911 top, rotary rod 912 top is equipped with annular arm-tie 913, annular arm-tie 913 top is equipped with a plurality of sucking discs 914 that can dismantle the change.

Bottom mounting plate subassembly 9 is arranged in the device bottom, it fixes the device bottom to put the state under, it violently rocks to reduce the device to appear, adopt the fixed mode of two kinds of differences, can select to pull to lean on fixedly or adsorb fixedly according to actual conditions, bottom mounting subassembly convenience and the suitability to the different situation have been improved, when connecting frid 904 and connection mainboard 901 for the right angle, through the locking of bullet piece 907 to slide bar 903, reach the locking to connecting frid 904, can pack up this bottom mounting subassembly 9 easily when second slide 4 is packed up, do not occupy too much space.

The locking elastic rod 11 is further included, the two first supporting rods 205, the second supporting rods 308 and the third supporting rods 409 at the bottommost parts of the fixed ladder 2, the first slide 3 and the second slide 4 are replaced by the locking elastic rod 11, and the locking elastic rod 11 comprises a rod body 1101, a sleeve 1102, a supporting column 1103 and a compression spring 1106;

the rod body 1101 is a cylindrical tubular structure with a closed lower end, the bottom of the support column 1103 is fixed at the bottom of the rod body 1101, the sleeve 1102 is arranged outside the rod body 1101 and movably connected with the rod body 1101, a plurality of locking blocks 1107 are symmetrically arranged at the top of the sleeve 1102, the rear ends of the first supporting rod 206, the second supporting rod 309 and the third supporting rod 410 are respectively provided with a locking block bayonet, after the first supporting rod 206, the second supporting rod 309 and the third supporting rod 410 are ejected out, the locking blocks 1107 are clamped and locked with the locking block bayonets, the top of the rod body 1101 is provided with a supporting rod connecting block 1108 with a middle opening, the supporting rod connecting block 1108 is respectively hinged with the first supporting rod 206, the second supporting rod 309 and the third supporting rod 410, the bottom of the sleeve 1102 is provided with a clamping sliding block 1104, the top of the compression spring 1106 abuts against the bottom of the sleeve 1102, the bottom of the compression spring abuts against the bottom inside of the rod body 1101, the outer wall of the rod body 1101 is slidably connected with a pressing sliding block 1105 penetrating through the rod body 1101 and movably clamped with the clamping sliding block 1104, and the top of the next-stage first slide 3 or the second slide 4 which is slidably connected with the pressing block 1105 And (4) contacting.

The pulling-up assembly 7 comprises a motor 701, a first coupling 702, a brake 704, a speed reducer 705, a second coupling 707 and a roller 708; the speed reducer 705 includes an input shaft 703 and an output shaft 706, the output end of the motor 701 is connected to the input shaft 703 through a first coupling 702, and the output shaft 706 is connected to one end of the drum 708 through a second coupling 707.

After the first rod 206, the second rod 309 and the third rod 410 are propped up, the top lock block 1107 of the sleeve 1102 is clamped at the lock block clamping opening, the locking elastic rod 11 can automatically lock the first rod 206, the second rod 309 and the third rod 410, the first rod 206, the second rod 309 and the third rod 410 are prevented from shaking in the using process, the climbing of operators is influenced, when the locking elastic rod is folded, the first slide block 3 and the second slide 4 abut against the pressing slide block 1105 on the extrusion locking elastic rod 11, and then the clamping slide block 1104 is pushed to move downwards, the sleeve 1102 drives the lock block 1107 to descend, and the first rod 206 and the second rod 309 are retracted into the first rod groove 204 and the second rod groove 302.

The using method of the telescopic device comprises the following steps:

s1, in an initial state, a brake 704 locks an input shaft 703, a roller 708 tensions a pull rope 12, a first slide 3 and a second slide 4 ascend to the highest stroke final position, the first slide 3 and the second slide 4 are folded with a fixed ladder 2, a first holding rod 206, a second holding rod 309 and a third holding rod 410 are respectively clamped in a first holding rod groove 204, a second holding rod groove 302 and a third holding rod groove 402, a plurality of locking blocks 807 are clamped on a pull belt opening 802, and a connecting groove plate 904 is folded and clamped on a connecting main board 901;

s2, when the slide is put down, the brake 704 releases the input shaft 703, the second slide 4 stably descends along the outer wall of the first slide 3 by means of self gravity until the top limiting plate 412 abuts against the second sliding wheel 307, and the first slide 3 is pulled to slide downwards along the outer wall of the fixed slide 2 until the first sliding wheel 306 abuts against the bottom of the first sliding groove 207.

S3, popping up the first supporting rod 205, the second supporting rod 308 and the third supporting rod 409 to respectively drive the first holding rod 206, the second holding rod 309 and the third holding rod 410 to pop up until the first supporting rod 205, the second supporting rod 308 and the third supporting rod 409 are respectively perpendicular to the first holding rod 206, the second holding rod 309 and the third holding rod 410, clamping and locking the locking block 1107 at the top of the locking elastic rod 11 with the locking block bayonet, wherein the first supporting rod 205, the second supporting rod 308 and the third supporting rod 409 are different in length, and after popping up, the first sliding rail 209, the second sliding rail 310 and the third sliding rail 411 are kept communicated on the same straight line.

S4, put down the connection frid 904 until connection frid 904 and connection mainboard 901 are in the vertical state, slide bar 903 crosses bullet piece 907 chucking to slide groove 906 rear end this moment, according to actual conditions, at the platform lateral wall department that is equipped with the pull ring, rotates pull-out hooked pole 909, rotates drag hook 910 couple on the pull ring, on being equipped with adsorbable lateral wall platform, can rotate pull-out adsorption pole 911, adsorb sucking disc 914 on the lateral wall to reach the purpose of fixed the device bottom.

S5, winding the strap 501 at the waist, inserting the lock tongue 503 into the lock catch 504 for clamping, placing the sliding block 506 in the third sliding rail 411, clamping the locking end 508 in the pull strap buckle 802 at the bottom, unlocking the top pull strap buckle 802 by the locking block 807 at the moment, and pulling the pull strap clamped with the strap 507 upwards.

S6, after the person finishes boarding, taking down the locking end 508 from the pull belt buckle 902, sliding the sliding block 506 from the top of the first sliding rail 209, withdrawing the hook block or the adsorption block into the connecting groove plate 904, pulling the elastic rod 908 to lower the elastic block 907, sliding the sliding rod 905 from the rear end of the sliding groove 906, fixing the connecting groove plate 904 on the connecting main board 901, driving the roller 708 to rotate by the motor 701, winding the pull rope 12, pulling the second slide 4 to move upwards by the pull rope 12, pushing the first sliding rod 3 to move upwards by the bottom limiting block 413 at the bottom of the second slide 4, wherein in the process of moving upwards, the top ends of the second slide 4 and the first slide 3 are abutted against the pressing sliding block 1105, the clamping slide block 1104 slides downwards by pressing the slide block 1105 in a collision way, the sleeve 1102 moves downwards, the lock block 1107 is separated from the lock block bayonet, causing first handrail 206 and second handrail 309 to retract into first handrail groove 204 and second handrail groove 302, respectively, pulling third handrail 410 to be placed into third handrail groove 402.

The foregoing is merely an example of the present invention, and common general knowledge in the field of known specific structures and characteristics is not described herein in any greater extent than that known in the art at the filing date or prior to the priority date of the application, so that those skilled in the art can now appreciate that all of the above-described techniques in this field and have the ability to apply routine experimentation before this date can be combined with one or more of the present teachings to complete and implement the present invention, and that certain typical known structures or known methods do not pose any impediments to the implementation of the present invention by those skilled in the art. It should be noted that, for those skilled in the art, without departing from the structure of the present invention, several changes and modifications can be made, which should also be regarded as the protection scope of the present invention, and these will not affect the effect of the implementation of the present invention and the practicability of the patent.

Claims

1. The telescopic device is characterized in that: comprises a platform (1), a fixed ladder (2), a first slide (3), a second slide (4), a safety belt component (5), a pull rope fixing component (6), a pulling-up component (7), a safety pull belt component (8), a plurality of bottom end fixing components (9) and pull ropes (12);

the fixing ladder (2) is fixedly arranged on the side face of the platform (1), the first slide (3) is connected with the fixing ladder (2) in a sliding mode, the second slide (4) is connected with the first slide (3) in a sliding mode, the safety belt assembly (5) is respectively connected with the fixing ladder (2), the first slide (3) and the second fixing ladder (4) in a sliding mode, the pulling-up assembly (7) and the pull rope fixing assembly (6) are arranged on the top of the platform (1), one end of the pull rope (12) is fixed on the pull rope fixing assembly (6), the other end of the pull rope (12) is fixed on the pulling-up assembly (7), the pull rope (12) is radially locked on the periphery of the second slide (4), the second slide (4) pulls or loosens the pull rope (12) to rapidly lift or place the second slide (4) through the pull rope assembly (7), and the safety assembly (8) is arranged on the side face of the platform (1), the safe waistband component (5) is connected with the safe pull belt component (8), and the bottom fixing components (9) are symmetrically arranged at the bottom of the side edge of the second slide (4).

2. The telescopic device according to claim 1, wherein: the fixed ladder (2) comprises two fixed ladder frames (201), a plurality of first pedals (202), a platform handrail (203), a first handrail groove (204), a plurality of first supporting rods (205), a first handrail (206) and a first sliding groove (207);

the two fixed ladder frames (201) are symmetrically arranged on two sides of the first pedals (202), the first pedals (202) are uniformly arranged in a straight line at intervals, the back parts of the two fixed ladder frames (201) are respectively provided with a platform handrail (203) formed by enclosing and lapping a cylindrical pipe, the back parts of the two fixed ladder frames (201) are respectively provided with a plurality of fixed blocks (208) uniformly arranged at intervals, the other ends of the fixed blocks (208) are fixed on the side surface of the platform (1), the fixed ladders (2) are fixed at the bottom parts of the platform handrails (203) by the fixed blocks (208) and are fixed at the top parts of the platform (1), the front parts of the fixed ladder frames (201) are provided with first supporting rod grooves (204), the first supporting rod grooves (204) are of rectangular groove structures, a plurality of first pin shafts arranged in a straight line are arranged in the first supporting rod grooves (204), and the bottom parts of the first supporting rods (205) are respectively hinged with the first pin shafts, a plurality of first branch (205) top all with first pole (206) are held up hingedly, be equipped with first slide rail (209) on first pole (206), fixed ladder frame (201) side is equipped with first spout (207).

3. The telescopic device according to claim 2, wherein: the first slide (3) comprises two first slide frames (301), a second holding rod groove (302), a plurality of second pedals (303), a plurality of second pin shafts (304), a second sliding groove (305), a plurality of first sliding wheels (306), a plurality of second sliding wheels (307), a plurality of second supporting rods (308) and a second holding rod (309);

the two first slide ladder frames (301) are symmetrically arranged on two sides of the plurality of second pedals (303), the plurality of second pedals (303) are uniformly arranged in a straight line at intervals, a second sliding chute (305) is arranged on the side edge of each first slide ladder frame (301), a plurality of first sliding wheels (306) are symmetrically arranged in each second sliding chute (305), the first sliding wheels (306) are connected with the first sliding chutes (207) in a sliding mode, and a plurality of second sliding wheels (307) are symmetrically arranged on the outer side of each first slide ladder frame (301); first slide ladder frame (301) front portion is equipped with second handrail groove (302), second handrail groove (302) are rectangle groove structure, second handrail groove (302) inside is equipped with second round pin axle (304) that a plurality of lines were arranged, and is a plurality of second branch (308) bottom is articulated with a plurality of second round pin axles (304) respectively, and is a plurality of second branch (308) top all holds up pole (309) with the second and articulates, it is equipped with second slide rail (310) on pole (309) is held up to the second.

4. The telescopic device according to claim 3, wherein: the second slide (4) comprises two second slide frames (401), a third supporting rod groove (402), a plurality of third pedals (403), a plurality of third pin shafts (404), a pull rope fixing block (405), a pull belt fixing block (406), a third sliding groove (408), a plurality of third supporting rods (409), a third supporting rod (410), a third sliding rail (411), a top limiting plate (412) and a bottom limiting plate (413);

two a plurality of third footboard (403) both sides are arranged in to second slide ladder frame (401) symmetry, and is a plurality of third footboard (403) are the even interval arrangement of word, second slide ladder frame (401) side is equipped with third spout (408), third spout (408) and second movable pulley (307) sliding connection, third spout (408) top is equipped with top limiting plate (412), second slide (4) bottom is equipped with bottom limiting plate (413), second slide (4) bilateral symmetry is equipped with a plurality of stay cord fixed blocks (405) of interval equipartition, second slide (4) side is equipped with fixed block (406), be equipped with two stay cord grooves (407) on stay cord fixed block (406), second slide ladder frame (401) front portion is equipped with third handrail groove (402), third handrail groove (402) are the rectangle groove structure, a plurality of third pin shafts (404) which are arranged in a straight line are arranged in the third supporting rod groove (402), the bottoms of the third supporting rods (409) are respectively hinged with the third pin shafts (404), the tops of the third supporting rods (409) are hinged with a third supporting rod (410), and a third sliding rail (411) is arranged on the third supporting rod (410);

the two guide wheel assemblies (10) are symmetrically arranged at the bottom of the second slide (4), each guide wheel assembly (10) comprises a plurality of guide wheel fixing plates (1001), a first guide wheel (1102) and a second guide wheel (1003), the first guide wheel (1002) and the second guide wheel (1003) are arranged in the middle of the two guide wheel fixing plates (1001) which are symmetrically arranged, the first guide wheel (1002) and the second guide wheel (1003) are respectively connected with the guide wheel fixing plates (1003) in a rotating mode, and the pull rope (12) is arranged between the first guide wheel (1102) and the second guide wheel (1003).

5. The telescopic device according to claim 4, wherein: the lap belt assembly (5) comprises a belt (501), an article placing frame (502), a bolt (503), a buckle (504), a plurality of sliding belts (505), a sliding block (506), a binding belt (507) and a locking end (508);

the band (501) is flexible banding structure, band (501) one end swing joint has spring bolt (503), band (501) other end fixedly connected with hasp (504), spring bolt (503) and hasp (504) activity joint can stimulate band (501) length that band (501) one end regulation spring bolt (503) and hasp (504) locking of band (501), band (501) both sides are equipped with a plurality of sliding strips (505), sliding strip (505) play end is equipped with sliding block (506), sliding block (506) and first slide rail (209), second slide rail (310) and third slide rail (411) sliding connection, the joint has a plurality of thing frames (502) and a plurality of instrument fastener (509) of putting on the band, be equipped with on band (501) and have elastic bandage (507), bandage (507) play end is equipped with locking end (508).

6. The telescopic device according to claim 5, wherein: the bottom end fixing component (9) comprises a connecting main board (901), a connecting vertical board (902), two connecting rods (903), a connecting groove board (904), a sliding rod (905), a sliding groove (906), an elastic block (907), an elastic rod (908), a hook block and an adsorption block;

the connecting main board (901) is fixed at the bottom end of the back of a second slide ladder frame (401), the connecting vertical board (902) is arranged in the middle of the connecting main board (901), the front end of the connecting vertical board (902) is hinged with the front ends of two connecting rods (903) symmetrically distributed on two sides of the connecting vertical board, the rear end of the connecting vertical board (902) is hinged with the rear end of a connecting groove board (904), a sliding groove (906) is arranged in the middle of the connecting groove board (904), a sliding rod (905) is arranged at the bottom of the connecting rod (903) and is in sliding connection with the sliding groove (906), an elastic rod (908) is arranged on the inner side of the connecting groove board (904), an elastic block (907) of a trapezoidal block structure is arranged at the top of the elastic rod (908), a spring is arranged at the bottom of the elastic block (907), namely on the outer side of the elastic rod (908), and the elastic block (907) is pressed down and then passes over the elastic block (907) when the sliding rod (903) slides to the rear end of the sliding groove (906), is clamped at the rear end of the sliding groove (906);

connect frid (904) front end and rotate and be connected with the hook piece and adsorb the piece, the hook piece includes hook pole (909) and drag hook (910), it includes adsorption pole (911), rotary rod (912), annular arm-tie (913) and a plurality of sucking disc (914) to adsorb the piece, hook pole (909) bottom is articulated with being connected frid (904) front end, hook pole (909) top is equipped with free pivoted drag hook (910), it is articulated with being connected frid (904) front end to adsorb pole (911) bottom, it is equipped with rather than articulated rotary rod (912) to adsorb pole (911) top, rotary rod (912) top is equipped with annular arm-tie (913), annular arm-tie (913) top is equipped with a plurality of sucking discs (914) that can dismantle the change.

7. The telescopic device according to claim 6, wherein: the safety pull belt assembly (8) comprises a pull belt machine head and a pull belt (801), wherein the pull belt machine head comprises a machine head fixing plate (803), a rotary table (804), a righting rod (805), a baffle (806) and a locking block (807);

inside the stretching strap aircraft nose is arranged in to stretching strap (801) upper end, stretching strap (801) lower extreme alternates in drawing strap groove (407), aircraft nose fixed plate (803) are fixed the aircraft nose at platform (1) lateral part through being connected with platform (1) side bolt, aircraft nose side bottom is arranged in to carousel (804), the aircraft nose top is arranged in to centering rod (805), aircraft nose front end is arranged in to baffle (806), the inside latch segment (807) that is equipped with a plurality of swing control of aircraft nose, be equipped with the even draw belt of a plurality of intervals on the stretching strap and buckle (802), locking end (508) and draw belt buckle (802) activity joint, latch segment (807) and the stretching strap that does not joint have locking end (508) are buckled (802) joint.

8. The telescopic device according to claim 7, wherein: the slide is characterized by further comprising a locking elastic rod (11), and two first supporting rods (205) and second supporting rods (308) at the bottommost parts of the fixed ladder (2), the first slide (3) and the second slide (4)

And the third support rod (409) is replaced by a locking elastic rod (11), wherein the locking elastic rod (11) comprises a rod body (1101), a sleeve (1102), a supporting column (1103) and a compression spring (1106);

the utility model discloses a compression spring, including body of rod (1101), support column (1103), sleeve (1102), first right bar (206), second right bar (309) and third right bar (410), body of rod (1101) is the closed cylinder tubular structure of lower extreme, the bottom of support column (1103) is fixed in body of rod (1101) bottom, sleeve (1102) is arranged in body of rod (1101) outside and with body of rod (1101) swing joint, sleeve (1102) top symmetry is equipped with a plurality of locking blocks (1107), first right bar (206), second right bar (309) and third right bar (410) rear end all are equipped with the locking block bayonet socket, first right bar (206), second right bar (309) and third right bar (410) pop out the back, locking block (1107) and locking block bayonet socket joint, body of rod (1101) top is equipped with centre bore hold up pole connecting block (1108), hold up pole connecting block (1108) and first right bar (206), second right bar (309) and third right bar (410) are articulated respectively, sleeve (1102) bottom is equipped with joint slider (1104), compression spring (1106) top is supported and is leaned on sleeve (1102), the bottom of the compression spring (1106) is abutted against the bottom end in the rod body (1101), the outer wall of the rod body (1101) is connected with a pressing sliding block (1105) which penetrates through the rod body (1101) and a clamping sliding block (1104) in a movable clamping mode, and the position of the pressing sliding block (1105) is abutted against and contacted with the top of a next-stage first slide (3) or a second slide (4) which is connected with the pressing sliding block in a sliding mode.

9. The telescopic device according to claim 8, wherein: the pulling-up assembly (7) comprises a motor (701), a first coupling (702), a brake (704), a speed reducer (705), a second coupling (707) and a roller (708); the speed reducer (705) comprises an input shaft (703) and an output shaft (706), the output end of the motor (701) is connected with the input shaft (703) through a first coupling (702), and the output shaft (706) is connected with one end of the roller (708) through a second coupling (707).

10. The method of using the telescopic device according to claim 9, wherein: the method comprises the following steps:

s1, in an initial state, an input shaft (703) is locked by a brake (704), a pull rope (12) is tensioned by a roller (708), a first slide (3) and a second slide (4) ascend to the highest stroke final position, the first slide (3) and the second slide (4) and a fixed ladder (2) are placed in a folded mode, a first holding rod (206), a second holding rod (309) and a third holding rod (410) are respectively clamped in a first holding rod groove (204), a second holding rod groove (302) and a third holding rod groove (402), a plurality of locking blocks (807) are clamped on a pull belt opening (802), and a connecting groove plate (904) is retracted and clamped on a connecting main board (901);

s2, when the slide is put down, the brake (704) loosens the input shaft (703), the second slide (4) stably descends along the outer wall of the first slide (3) by means of self gravity until the top limiting plate (412) abuts against the second sliding wheel (307), and the first slide (3) is pulled to slide downwards along the outer wall of the fixed slide (2) until the first sliding wheel (306) abuts against the bottom of the first sliding groove (207);

s3, popping up the first supporting rod (205), the second supporting rod (308) and the third supporting rod (409), respectively driving the first supporting rod (206), the second supporting rod (309) and the third supporting rod (410) to pop up until the first supporting rod (205), the second supporting rod (308) and the third supporting rod (409) are respectively perpendicular to the first supporting rod (206), the second supporting rod (309) and the third supporting rod (410), clamping and locking a locking block (1107) at the top of the locking elastic rod (11) with a locking block bayonet, wherein the first supporting rod (205), the second supporting rod (308) and the third supporting rod (409) are different in length, and after popping up, the first sliding rail (209), the second sliding rail (310) and the third sliding rail (411) are ensured to be communicated on the same straight line;

s4, putting down the connecting groove plate (904) until the connecting groove plate (904) and the connecting main board (901) are in a vertical state, clamping the sliding rod (903) to the rear end of the sliding groove (906) after passing over the elastic block (907), rotationally pulling out the hook rod (909) at the side wall of the platform provided with the pull ring according to actual conditions, rotationally pulling out the suction rod (911) when the rotary hook (910) is hooked on the pull ring, and rotationally pulling out the suction rod (911) on the platform provided with the adsorbable side wall to adsorb the suction disc (914) on the side wall so as to achieve the purpose of fixing the bottom end of the device;

s5, winding a binding belt (501) at the waist, inserting a lock tongue (503) into a lock catch (504) for clamping, placing a sliding block (506) in a third sliding rail (411), clamping a locking end (508) in a pull belt buckle (802) at the bottom, releasing the locking of the top pull belt buckle (802) by using a locking block (807), and enabling a pull belt clamped with the binding belt (507) to be in an upward pulling state;

s6, after the person finishes boarding, taking down the locking end (508) from the pull belt buckle (902), sliding the sliding block (506) from the top of the first sliding rail (209), withdrawing the hook block or the adsorption block into the connecting groove plate (904), pulling the elastic rod (908) to enable the elastic block (907) to descend, sliding the sliding rod (905) from the rear end of the sliding groove (906), fixing the connecting groove plate (904) on the connecting main plate (901), driving the roller (708) to rotate by the motor (701), winding the pull rope (12), pulling the second slide (4) to move upwards by the pull rope (12), pushing the first sliding rod (3) to move upwards by the bottom limiting block (413) at the bottom of the second slide (4), enabling the clamping slide (1104) to slide downwards by colliding with the pressing slide block (1105) in the upward moving process, the sleeve (1102) moves downwards, the locking block (1107) is separated from the locking block bayonet, so that the first handrail (206) and the second handrail (309) are respectively contracted into the first handrail groove (204) and the second handrail groove (302), and the third handrail (410) is pulled to be placed in the third handrail groove (402).