CN112875567B - Anti-falling device of elevator - Google Patents
Anti-falling device of elevator Download PDFInfo
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- CN112875567B CN112875567B CN202110032924.XA CN202110032924A CN112875567B CN 112875567 B CN112875567 B CN 112875567B CN 202110032924 A CN202110032924 A CN 202110032924A CN 112875567 B CN112875567 B CN 112875567B
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B66—HOISTING; LIFTING; HAULING
- B66F—HOISTING, LIFTING, HAULING OR PUSHING, NOT OTHERWISE PROVIDED FOR, e.g. DEVICES WHICH APPLY A LIFTING OR PUSHING FORCE DIRECTLY TO THE SURFACE OF A LOAD
- B66F7/00—Lifting frames, e.g. for lifting vehicles; Platform lifts
- B66F7/06—Lifting frames, e.g. for lifting vehicles; Platform lifts with platforms supported by levers for vertical movement
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B66—HOISTING; LIFTING; HAULING
- B66F—HOISTING, LIFTING, HAULING OR PUSHING, NOT OTHERWISE PROVIDED FOR, e.g. DEVICES WHICH APPLY A LIFTING OR PUSHING FORCE DIRECTLY TO THE SURFACE OF A LOAD
- B66F17/00—Safety devices, e.g. for limiting or indicating lifting force
- B66F17/006—Safety devices, e.g. for limiting or indicating lifting force for working platforms
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B66—HOISTING; LIFTING; HAULING
- B66F—HOISTING, LIFTING, HAULING OR PUSHING, NOT OTHERWISE PROVIDED FOR, e.g. DEVICES WHICH APPLY A LIFTING OR PUSHING FORCE DIRECTLY TO THE SURFACE OF A LOAD
- B66F7/00—Lifting frames, e.g. for lifting vehicles; Platform lifts
- B66F7/06—Lifting frames, e.g. for lifting vehicles; Platform lifts with platforms supported by levers for vertical movement
- B66F7/0625—Lifting frames, e.g. for lifting vehicles; Platform lifts with platforms supported by levers for vertical movement with wheels for moving around the floor
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B66—HOISTING; LIFTING; HAULING
- B66F—HOISTING, LIFTING, HAULING OR PUSHING, NOT OTHERWISE PROVIDED FOR, e.g. DEVICES WHICH APPLY A LIFTING OR PUSHING FORCE DIRECTLY TO THE SURFACE OF A LOAD
- B66F7/00—Lifting frames, e.g. for lifting vehicles; Platform lifts
- B66F7/06—Lifting frames, e.g. for lifting vehicles; Platform lifts with platforms supported by levers for vertical movement
- B66F7/065—Scissor linkages, i.e. X-configuration
- B66F7/0666—Multiple scissor linkages vertically arranged
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B66—HOISTING; LIFTING; HAULING
- B66F—HOISTING, LIFTING, HAULING OR PUSHING, NOT OTHERWISE PROVIDED FOR, e.g. DEVICES WHICH APPLY A LIFTING OR PUSHING FORCE DIRECTLY TO THE SURFACE OF A LOAD
- B66F7/00—Lifting frames, e.g. for lifting vehicles; Platform lifts
- B66F7/06—Lifting frames, e.g. for lifting vehicles; Platform lifts with platforms supported by levers for vertical movement
- B66F7/08—Lifting frames, e.g. for lifting vehicles; Platform lifts with platforms supported by levers for vertical movement hydraulically or pneumatically operated
- B66F7/085—Lifting frames, e.g. for lifting vehicles; Platform lifts with platforms supported by levers for vertical movement hydraulically or pneumatically operated pneumatically operated
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B66—HOISTING; LIFTING; HAULING
- B66F—HOISTING, LIFTING, HAULING OR PUSHING, NOT OTHERWISE PROVIDED FOR, e.g. DEVICES WHICH APPLY A LIFTING OR PUSHING FORCE DIRECTLY TO THE SURFACE OF A LOAD
- B66F7/00—Lifting frames, e.g. for lifting vehicles; Platform lifts
- B66F7/28—Constructional details, e.g. end stops, pivoting supporting members, sliding runners adjustable to load dimensions
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- Life Sciences & Earth Sciences (AREA)
- Engineering & Computer Science (AREA)
- Geology (AREA)
- Mechanical Engineering (AREA)
- Structural Engineering (AREA)
- Load-Engaging Elements For Cranes (AREA)
- Types And Forms Of Lifts (AREA)
Abstract
The invention relates to an anti-falling device of an elevator, which comprises a motion platform, a lifting frame and an anti-falling frame, wherein the lifting frame is fixedly arranged at the upper end of the motion platform, the anti-falling frame is fixedly arranged at the upper end of the lifting frame, the motion platform comprises a rectangular plate, universal wheels, threaded rods, a connecting long plate, control rods, nut pairs and clamping plates, and the anti-falling frame comprises a bottom plate, a fixed upright post, a square barrel plate, a rotating square plate, a positioning ball, a steel wire rope, a winding drum, a handle and a positioning block.
Description
Technical Field
The invention relates to the field of elevators, in particular to an anti-falling device of an elevator.
Background
The elevator is a multifunctional lifting mechanical device, and the principle is as follows: hydraulic oil is pressurized by a vane pump, and enters the lower end of the hydraulic cylinder through an oil filter, an explosion-proof electromagnetic directional valve, a throttle valve, a hydraulic control one-way valve and a balance valve, so that a piston of the hydraulic cylinder moves upwards to lift a heavy object, return oil at the upper end of the hydraulic cylinder returns to an oil tank through the explosion-proof electromagnetic directional valve, the rated pressure of the hydraulic cylinder is adjusted through an overflow valve, and a pressure gauge is used for observing the reading value of the pressure gauge.
In the process of using the elevator, due to the structure of the guard rail on the elevator and the safety awareness of the user and the limitation of the mobility of the article, the following problems exist in the actual operation process:
(1) traditional lift anti-falling device is in the use, and the guardrail can't carry out quick regulation according to the volume size of article to article in leading to the guardrail can't place to the edge, thereby the volume that leads to guardrail single transportation is less, finally influences work efficiency.
(2) When the conventional elevator falling-preventing device is used, the user or the article may fall or fall off from the guardrail when the safety awareness of the user is low or the mobility of the article is strong, so that the outside of the guardrail needs to be protected.
Disclosure of Invention
In order to make up for the defects of the prior art, the invention provides an elevator anti-falling device.
The technical scheme adopted by the invention to solve the technical problem is as follows: an anti-falling device of a lift comprises a moving platform, a lifting frame and an anti-falling frame, wherein the lifting frame is fixedly arranged at the upper end of the moving platform, and the anti-falling frame is fixedly arranged at the upper end of the lifting frame; wherein:
the moving table comprises a rectangular plate, universal wheels, threaded rods, connecting long plates, control rods, nut pairs and clamping plates, the universal wheels are uniformly and fixedly mounted at the lower end of the rectangular plate, the outer sides of the rectangular plate are uniformly connected with the threaded rods in a threaded connection mode, the connecting long plates are fixedly mounted at the upper ends of the adjacent threaded rods through pin shafts, the control rods are fixedly mounted at the upper ends of the rightmost threaded rods positioned at the front sides of the rectangular plate, the lower sides of the threaded rods are connected with the nut pairs in a threaded connection mode, and the clamping plates are fixedly mounted at the outer sides of the nut pairs; fix a position the universal wheel through the rectangular plate, through the motion of universal wheel control rectangular plate, through the vice vertical displacement of threaded rod control nut to the vertical displacement of control screens board cooperatees through connecting long slab and control lever, in order to reach only through the control lever caking control all threaded rod pivoted purposes, fix a position the rectangular plate through the screens board.
The lifting frame comprises a first arc-shaped cylinder, a first inclined square column, a positioning cylinder, a second arc-shaped cylinder, a fixed plate, an electric cylinder and a U-shaped long plate, wherein the first arc-shaped cylinder is symmetrically and fixedly arranged on the left side and the right side of the upper end of the rectangular plate, the first inclined square column is symmetrically and fixedly arranged on the front end and the rear end of the first arc-shaped cylinder through a rotating shaft, the positioning cylinder is fixedly arranged between the inclined square columns on the front side and the rear side, the inclined square column is fixedly arranged at the tail end of the inclined square column through a pin shaft, the second arc-shaped cylinder is fixedly arranged on the upper end of the uppermost inclined square column through a rotating shaft, the fixed plate is fixedly arranged between the inclined square columns on the upper end of the rectangular plate, the inclined electric cylinder is symmetrically and fixedly arranged on the front side and the rear side of the upper end of the fixed plate, the U-shaped long plate is fixedly connected with the inclined square columns on the front side and the rear side through rotating shafts; fix a position through a pair of slope square columns of arc cylinder, fix the slope square column of both sides around through the location cylinder, fix a position through the slope square column of arc cylinder two pairs of the top, fix the bottom plate simultaneously, fix electric cylinder through the fixed plate, be connected with the slope square column through the electric cylinder of shape of a hoof long slab to both sides around.
The anti-falling frame comprises a bottom plate, a fixed upright post, a square barrel plate and a rotating square plate, the positioning device comprises a positioning ball, a steel wire rope, a winding drum, a handle and a positioning block, wherein a bottom plate is fixedly arranged at the upper end of each arc-shaped cylinder, a fixed upright post is fixedly arranged on the periphery of the upper end of the bottom plate, a square cylinder plate is uniformly and fixedly arranged on the fixed upright post, a rotating square plate is uniformly and circumferentially arranged at the upper end and the lower end of the square cylinder plate, a positioning ball is fixedly arranged at the outer end of the rotating square plate, a small cylinder through hole is formed in the middle of the positioning ball, the steel wire rope is connected into the small cylinder through hole in a sliding fit manner, the winding drum is fixedly arranged on the right side of the upper end of the bottom plate through shaft, the outer end face of the winding drum is fixedly connected with the tail end of the steel wire rope, the handle is connected to the upper end of the winding drum in a sliding fit manner, an annular clamping groove is formed in the projection position of the upper end of the rotating track of the bottom plate, and the positioning block is uniformly and circumferentially and fixedly arranged at the inner end of the annular clamping groove; fix the stationary mast through the bottom plate, fix square tube sheet through the stationary mast, fix a position the square plate that rotates through square tube sheet, fix the location ball through rotating the square plate, fix a position wire rope through the location ball, inclination through wire rope control rotation square plate, thereby control the space size between the square plate that rotates, fix wire rope end through the reel, simultaneous control wire rope's elasticity, thereby control rotation square plate, rotation through handle control reel, fix a position the handle through the locating piece.
As a preferred technical scheme of the invention, the clamping plate comprises a square frame, a serrated plate and a bolt, the square frame is fixedly arranged on the outer side of the nut pair, the serrated plate is fixedly arranged at the lower end of the inner side of the square frame, and the bolt is uniformly connected to the outer end of the square frame in a threaded connection manner; fix the serration plate through square frame, increase the frictional force between device and the work plane through the serration plate to fix a position the device, fix device and work plane through the bolt.
As a preferred technical scheme of the invention, the inclined square column comprises a square column, a semicircular plate and a baffle plate, the front end and the rear end of the arc-shaped column are symmetrically and fixedly provided with the square column through a rotating shaft, the left end and the right end of the square column are symmetrically and fixedly provided with the semicircular plate, and the outer end of the semicircular plate is fixedly provided with the baffle plate; fix half plectane through square post, fix the baffle through the plectane board, restrict the angle of slope between the square post through the baffle.
According to a preferred technical scheme, the bottom plate comprises a first rectangular flat plate, a connecting plate, a second rectangular flat plate, an electric push rod, a conical cylinder, a push rod, a moving plate, an air bag and an air pump, the first rectangular flat plate is fixedly arranged at the upper end of the second arc-shaped cylinder, the connecting plate is fixedly arranged in the middle of the first rectangular flat plate, the second rectangular flat plate is fixedly arranged at the upper end of the connecting plate, the electric push rod is fixedly arranged at the lower end of the middle of the connecting plate, the conical cylinder is fixedly arranged at the upper end of the electric push rod, the push rod is uniformly connected to the outer side of the connecting plate in a sliding fit manner along the circumferential direction, the moving plate is uniformly connected between the first rectangular flat plate and the second rectangular flat plate in a sliding fit manner, the air bag is fixedly arranged on the moving plate, and the air pump is fixedly arranged at the rightmost end of the air bag; fix through the dull and stereotyped a pair of connecting plate of rectangle, fix the dull and stereotyped two of rectangle through the connecting plate, fix electric putter through the connecting plate, fix the toper cylinder through electric putter, through the horizontal displacement of toper cylinder control catch bar to the horizontal displacement of control movable plate fixes the gasbag through the movable plate, controls the inflation volume in the gasbag through the air pump.
According to a preferred technical scheme, the steel wire rope comprises a first thin steel wire, a second thin steel wire, a small round bead, a rolling bead and a limiting ball, wherein the first thin steel wire is connected in a small cylindrical through hole on the positioning ball in a sliding fit mode, a plurality of second thin steel wires are wound on the outer end face of the first thin steel wire, the second thin steel wires are uniformly stringed with small round beads with smooth surfaces, the outer end face of each small round bead is uniformly connected with the rolling bead in a sliding fit mode along the circumferential direction, and the limiting ball is fixedly installed at the beginning ends of the first thin steel wire and the second thin steel wires; the first fine steel wire is matched with the second fine steel wire, so that the friction force on the second fine steel wire is uniform, the rolling ball is positioned through the small ball, the friction force between the second fine steel wire and the positioning ball is reduced through the rolling ball, and the first fine steel wire and the second fine steel wire are positioned through the limiting ball.
As a preferred technical scheme of the invention, the winding drum comprises a rolling cylinder, positioning rings, positioning cylinders, positioning springs, arc-shaped plates and an extrusion ball, wherein the rolling cylinder is fixedly arranged on the right side of the upper end of the bottom plate through a rotating shaft, the positioning rings are uniformly and fixedly arranged on the rolling cylinder, the positioning cylinders are uniformly and fixedly arranged at the inner ends of the adjacent positioning rings along the circumferential direction, the positioning springs are fixedly arranged in the positioning cylinders, the arc-shaped plates are fixedly arranged at the tail ends of the positioning springs, and the extrusion ball is connected at the inner ends of the arc-shaped plates in a sliding fit manner; fix the holding ring through a roll section of thick bamboo, fix a location section of thick bamboo through the locating ring, fix a location spring through a location section of thick bamboo, fix the arc through a location spring, fix a position the extrusion ball through the arc, prevent to block when receiving wire rope's extrusion through the extrusion ball.
As a preferred technical scheme of the invention, the handle comprises a circular toothed plate, an inverted L-shaped rod, a rubber sleeve, a positioning rod and a trapezoidal block, the upper end of the winding drum is connected with the circular toothed plate in a sliding fit manner, the upper end of the circular toothed plate is fixedly provided with the inverted L-shaped rod, the outer end of the upper side of the inverted L-shaped rod is fixedly provided with the rubber sleeve, the lower side of the tail end of the inverted L-shaped rod is fixedly provided with the positioning rod, and the lower end of the positioning rod is fixedly provided with the trapezoidal block; fix the L shape pole of falling through circular pinion rack, fix rubber sleeve and locating lever through the L shape pole of falling, reduce the frictional force that the user received when using through the rubber sleeve, fix trapezoidal piece through the locating lever, cooperate through trapezoidal piece and locating piece to fix a position the L shape pole of falling.
According to a preferred technical scheme, the positioning block comprises a support rod, an extrusion spring and a triangular block, the support rod is uniformly and fixedly installed at the inner end of an annular clamping groove in the upper end of the bottom plate along the circumferential direction, the extrusion spring is sleeved outside the support rod, one end of the extrusion spring is fixedly connected with the bottom plate, and the triangular block is fixedly installed at the other end of the extrusion spring; fix extrusion spring through the support pole, fix the triangular block through extrusion spring, fix a position trapezoidal block through the triangular block.
Compared with the prior art, the invention has the following advantages:
1. according to the anti-falling device of the elevator, the vertical displacement of the anti-falling frame is controlled by the lifting frame through the movement and the positioning of the motion table control device, and the gap of the guardrail is rapidly adjusted by the anti-falling frame according to the volume of an article, so that the article is prevented from falling from the gap of the guardrail, and meanwhile, the inner side and the outer side of the guardrail are protected, and a user or the article is prevented from being damaged when the user or the article is inclined or falls out of the guardrail.
2. According to the invention, the saw-toothed plate is fixed through the square frame by the arranged motion table, the friction force between the device and the working plane is increased through the saw-toothed plate, so that the device is positioned, and the device and the working plane are fixed through the bolts.
3. According to the invention, the horizontal displacement of the pushing rod is controlled through the conical cylinder by the arranged anti-falling frame, so that the horizontal displacement of the movable plate is controlled, the air bag is fixed through the movable plate, the inflation quantity in the air bag is controlled through the air pump, the thin steel wire I is matched with the thin steel wire II, so that the friction force on the thin steel wire II is uniform, the rolling ball is positioned through the small ball, the friction force between the thin steel wire II and the positioning ball is reduced through the rolling ball, and the thin steel wire I and the thin steel wire II are positioned through the limiting ball.
4. The anti-falling device comprises an anti-falling frame, an arc-shaped plate, a rubber sleeve, a positioning rod and a positioning block, wherein the anti-falling frame is arranged on the outer side of the anti-falling frame, the arc-shaped plate is arranged on the outer side of the anti-falling frame, the rubber sleeve is arranged on the outer side of the anti-falling frame, the anti-falling frame is arranged on the anti-falling frame, the anti-falling ball, the anti-falling frame, the anti-falling ball is prevented by the rubber sleeve, the rubber sleeve is clamped when being extruded by the rubber sleeve, the rubber sleeve reduces the friction force borne by the rubber sleeve, the rubber sleeve is used by the rubber sleeve, the rubber sleeve is used for reducing friction force borne by the rubber sleeve, the rubber sleeve is used for fixing rod, the anti-falling frame is used for fixing block, the anti-falling frame, the.
Drawings
The invention is further illustrated with reference to the following figures and examples.
FIG. 1 is a schematic plan view of the present invention;
FIG. 2 is a schematic plan view of the fall arrest frame of the present invention;
FIG. 3 is an enlarged view of a portion of the present invention at N of FIG. 1;
FIG. 4 is an enlarged fragmentary view of the invention at M of FIG. 1;
fig. 5 is a schematic plan view of a steel cord according to the invention;
fig. 6 is a schematic plan view of the connecting long plate and the control lever of the present invention.
Detailed Description
In order to make the technical means, the creation features, the achievement purposes and the effects of the invention easy to understand, the invention is further explained with reference to fig. 1 to 6.
An anti-falling device of a lifter comprises a moving platform 1, a lifting frame 2 and an anti-falling frame 3, wherein the lifting frame 2 is fixedly arranged at the upper end of the moving platform 1, and the anti-falling frame 3 is fixedly arranged at the upper end of the lifting frame 2; wherein:
the moving table 1 comprises a rectangular plate 11, universal wheels 12, threaded rods 13, long connecting plates 14, control rods 15, nut pairs 16 and clamping plates 17, the universal wheels 12 are uniformly and fixedly installed at the lower end of the rectangular plate 11, the threaded rods 13 are uniformly connected to the outer side of the rectangular plate 11 in a threaded connection mode, the long connecting plates 14 are fixedly installed at the upper ends of the adjacent threaded rods 13 through pin shafts, the control rods 15 are fixedly installed at the upper ends of the threaded rods 13 located on the rightmost side of the front side of the rectangular plate 11, the lower sides of the threaded rods 13 are connected with the nut pairs 16 in a threaded connection mode, and the clamping plates 17 are fixedly installed on the outer sides of the nut pairs 16; the clamping plate 17 comprises a square frame 171, a serrated plate 172 and a bolt 173, the square frame 171 is fixedly installed on the outer side of the nut pair 16, the serrated plate 172 is fixedly installed on the lower end of the inner side of the square frame 171, and the bolt 173 is uniformly connected to the outer end of the square frame 171 in a threaded connection manner; the universal wheels 12 are positioned through the rectangular plates 11, the movement of the rectangular plates 11 is controlled through the universal wheels 12, the vertical displacement of the nut pairs 16 is controlled through the threaded rods 13, so that the vertical displacement of the clamping plates 17 is controlled, the long plates 14 are connected to be matched with the control rods 15, the purpose of controlling all the threaded rods 13 to rotate only through the caking of the control rods 15 is achieved, and the rectangular plates 11 are positioned through the clamping plates 17; the saw blade 172 is fixed by the square frame 171, and the friction between the device and the work plane is increased by the saw blade 172 to position the device, and the device and the work plane are fixed by the bolt 173.
The lifting frame 2 comprises a first arc-shaped cylinder 21, an inclined square column 22, a positioning cylinder 23, a second arc-shaped cylinder 24, a fixing plate 25, an electric cylinder 26 and a horseshoe-shaped long plate 27, wherein the first arc-shaped cylinder 21 is symmetrically and fixedly arranged on the left side and the right side of the upper end of the rectangular plate 11, and the inclined square column 22 is symmetrically and fixedly arranged at the front end and the rear end of the first arc-shaped cylinder 21 through rotating shafts; the inclined square column 22 comprises a square column 221, a semicircular plate 222 and a baffle 223, the front end and the rear end of the arc-shaped column I21 are symmetrically and fixedly provided with the square column 221 through a rotating shaft, the left end and the right end of the square column 221 are symmetrically and fixedly provided with the semicircular plate 222, and the outer end of the semicircular plate 222 is fixedly provided with the baffle 223; a positioning cylinder 23 is fixedly arranged between the inclined square columns 22 at the front side and the rear side, the inclined square columns 22 are fixedly arranged at the tail ends of the inclined square columns 22 through pin shafts, the arc-shaped cylinder II 24 is fixedly arranged at the upper ends of the inclined square columns 22 at the uppermost side through rotating shafts, a fixing plate 25 is fixedly arranged between the inclined square columns 22 at the upper end of the rectangular plate 11, inclined electric cylinders 26 are symmetrically and fixedly arranged at the front side and the rear side of the upper end of the fixing plate 25, a horseshoe-shaped long plate 27 is fixedly arranged at the tail end of the electric cylinder 26, and the front end and the rear end of the horseshoe-shaped long plate 27 are fixedly connected with the inclined square columns 22 at the front side and the rear side through rotating shafts respectively; positioning the inclined square column 22 through the arc-shaped cylinder I21; the semicircular plates 222 are fixed through the square columns 221, the baffles 223 are fixed through the circular plates, and the inclined angles among the square columns 221 are limited through the baffles 223; fix the slope square column 22 of both sides around through the location cylinder 23, fix the slope square column 22 of the top through two 24 arc cylinders, fix bottom plate 30 simultaneously, fix electric cylinder 26 through fixed plate 25, be connected with slope square column 22 through long plate 27 of shape of a hoof to electric cylinder 26 of both sides around.
The anti-falling frame 3 comprises a bottom plate 30, a fixed upright column 31, a square barrel plate 32, a rotating square plate 33, a positioning ball 34, a steel wire rope 35, a winding barrel 36, a handle 37 and a positioning block 38, wherein the bottom plate 30 is fixedly installed at the upper end of an arc-shaped cylinder II 24, the fixed upright column 31 is fixedly installed around the upper end of the bottom plate 30, the square barrel plate 32 is uniformly and fixedly installed on the fixed upright column 31, the rotating square plate 33 is uniformly and fixedly installed at the upper end and the lower end of the square barrel plate 32 along the circumferential direction through a rotating shaft, the positioning ball 34 is fixedly installed at the outer end of the rotating square plate 33, a small cylinder through hole is formed in the middle of the positioning ball 34, the steel wire rope 35 is connected in a sliding fit manner in the small cylinder through hole, the winding barrel 36 is fixedly installed on the right side of the upper end of the bottom plate 30 through the rotating shaft, the outer end face of the winding barrel 36 is fixedly connected with the tail end of the steel wire rope 35, and the handle 37 is connected in a sliding fit manner at the upper end of the winding barrel 36; the handle 37 comprises a circular toothed plate 371, an inverted L-shaped rod 372, a rubber sleeve 373, a positioning rod 374 and a trapezoidal block 375, the circular toothed plate 371 is connected to the upper end of the winding drum 36 in a sliding fit mode, the inverted L-shaped rod 372 is fixedly mounted at the upper end of the circular toothed plate 371, the rubber sleeve 373 is fixedly mounted at the outer end of the upper side of the inverted L-shaped rod 372, the positioning rod 374 is fixedly mounted at the lower side of the tail end of the inverted L-shaped rod 372, and the trapezoidal block 375 is fixedly mounted at the lower end of the positioning rod 374; an annular clamping groove is formed in the upper end of the bottom plate 30 at the position of the rotating track projection of the handle 37, and positioning blocks 38 are uniformly and fixedly mounted at the inner end of the annular clamping groove along the circumferential direction; the positioning block 38 comprises a support rod 381, an extrusion spring 382 and a triangular block 383, the support rod 381 is uniformly and fixedly installed at the inner end of an annular clamping groove on the upper end of the bottom plate 30 along the circumferential direction, the extrusion spring 382 is sleeved outside the support rod 381, one end of the extrusion spring 382 is fixedly connected with the bottom plate 30, and the triangular block 383 is fixedly installed at the other end of the extrusion spring 382; the fixed upright column 31 is fixed through the bottom plate 30, the square barrel plate 32 is fixed through the fixed upright column 31, the rotating square plate 33 is positioned through the square barrel plate 32, the positioning ball 34 is fixed through the rotating square plate 33, the steel wire rope 35 is positioned through the positioning ball 34, the inclination angle of the rotating square plate 33 is controlled through the steel wire rope 35, the size of a gap between the rotating square plates 33 is controlled, the tail end of the steel wire rope 35 is fixed through the winding drum 36, meanwhile, the tightness of the steel wire rope 35 is controlled, the rotating square plate 33 is controlled, and the rotation of the winding drum 36 is controlled through the handle 37; the inverted L-shaped rod 372 is fixed through the circular toothed plate 371, the rubber sleeve 373 and the positioning rod 374 are fixed through the inverted L-shaped rod 372, the friction force applied by a user in use is reduced through the rubber sleeve 373, the trapezoidal block 375 is fixed through the positioning rod 374, and the trapezoidal block 375 is matched with the positioning block 38, so that the inverted L-shaped rod 372 is positioned; the handle 37 is positioned through the positioning block 38; the pressing spring 382 is fixed by the support rod 381, the triangular block 383 is fixed by the pressing spring 382, and the trapezoidal block 375 is positioned by the triangular block 383.
The bottom plate 30 comprises a first rectangular flat plate 301, a connecting plate 302, a second rectangular flat plate 303, an electric push rod 304, a conical cylinder 305, a push rod 306, a moving plate 307, an air bag 308 and an air pump 309, the upper end of the second arc cylinder 24 is fixedly provided with the first rectangular flat plate 301, the middle of the first rectangular flat plate 301 is fixedly provided with the connecting plate 302, the upper end of the connecting plate 302 is fixedly provided with the second rectangular flat plate 303, the lower end of the middle of the connecting plate 302 is fixedly provided with the electric push rod 304, the upper end of the electric push rod 304 is fixedly provided with the conical cylinder 305, the outer side of the connecting plate 302 is uniformly connected with the push rod 306 in a sliding fit manner along the circumferential direction, the moving plate 307 is uniformly connected between the first rectangular flat plate 301 and the second rectangular flat plate 303 in a sliding fit manner, the air bag 308 is fixedly arranged on the moving plate 307, and the air pump 309 is fixedly arranged at the rightmost end of the air bag 308; the connecting plate 302 is fixed through the first rectangular flat plate 301, the second rectangular flat plate 303 is fixed through the connecting plate 302, the electric push rod 304 is fixed through the connecting plate 302, the conical cylinder 305 is fixed through the electric push rod 304, the horizontal displacement of the push rod 306 is controlled through the conical cylinder 305, so that the horizontal displacement of the moving plate 307 is controlled, the air bag 308 is fixed through the moving plate 307, and the inflation quantity in the air bag 308 is controlled through the air pump 309.
The steel wire rope 35 comprises a first thin steel wire 351, a second thin steel wire 352, a small ball 353, a rolling ball 354 and a limiting ball 355, the first thin steel wire 351 is connected in a small cylindrical through hole in the positioning ball 34 in a sliding fit mode, a plurality of second thin steel wires 352 are wound on the outer end face of the first thin steel wire 351, the small balls 353 with smooth surfaces are uniformly strung on the second thin steel wires 352, the rolling ball 354 is uniformly connected on the outer end face of the small ball 353 in a sliding fit mode along the circumferential direction, and the limiting ball 355 is fixedly installed at the head ends of the first thin steel wire 351 and the second thin steel wires 352; the first thin steel wire 351 is matched with the second thin steel wire 352, so that the friction force on the second thin steel wire 352 is uniform, the rolling balls 354 are positioned through the small balls, the friction force between the second thin steel wire 352 and the positioning balls 34 is reduced through the rolling balls 354, and the first thin steel wire 351 and the second thin steel wire 352 are positioned through the limiting balls 355.
The winding drum 36 comprises a rolling cylinder 361, a positioning ring 362, a positioning cylinder 363, a positioning spring 364, an arc-shaped plate 365 and an extrusion ball 366, the rolling cylinder 361 is fixedly installed on the right side of the upper end of the bottom plate 30 through a rotating shaft, the positioning rings 362 are uniformly and fixedly installed on the rolling cylinder 361, the positioning cylinders 363 are uniformly and fixedly installed at the inner ends of the adjacent positioning rings 362 along the circumferential direction, the positioning springs 364 are fixedly installed in the positioning cylinders 363, the arc-shaped plate 365 is fixedly installed at the tail ends of the positioning springs 364, and the inner ends of the arc-shaped plates 365 are connected with the extrusion ball 366 in a sliding fit manner; fix holding ring 362 through rolling a 361, fix a location section of thick bamboo 363 through holding ring 362, fix a positioning spring 364 through a location section of thick bamboo 363, fix arc 365 through a positioning spring 364, fix a position extrusion ball 366 through arc 365, prevent to block when receiving the extrusion of wire rope 35 through extrusion ball 366.
When the device works specifically, the device is moved to a proper displacement through the universal wheel 12, the control panel 17 is fixedly connected with a working plane through the control rod 15, an article or a constructor needing to be lifted is placed on the bottom plate 30 at the moment, according to the volume of the article, the winding drum 36 is rotated through rotating the handle 37, finally the steel wire rope 35 drives the rotating square plate 33 to rotate until the size of a gap between the rotating square plates 33 is proper, the handle 37 is pressed downwards at the moment, the handle 37 is fixed through the positioning block 38, meanwhile, the conical cylinder 305 is pushed through the electric push rod 304, the moving plate 307 is controlled to move outwards, meanwhile, the air bag 308 is inflated through the air pump 309, secondary protection is carried out, the inclined square column 22 is pushed through the electric cylinder 26 until the bottom plate 30 moves to a proper position.
The foregoing illustrates and describes the principles, general features, and advantages of the present invention. It will be understood by those skilled in the art that the present invention is not limited to the embodiments described above, which are given by way of illustration of the principles of the present invention, and that various changes and modifications may be made without departing from the spirit and scope of the invention as defined by the appended claims. The scope of the invention is defined by the appended claims and equivalents thereof.
Claims (7)
1. The utility model provides an elevator anti-falling device, includes motion platform (1), crane (2) and prevents weighing down frame (3), its characterized in that: the upper end of the motion platform (1) is fixedly provided with a lifting frame (2), and the upper end of the lifting frame (2) is fixedly provided with an anti-falling frame (3); wherein:
the moving table (1) comprises a rectangular plate (11), universal wheels (12), threaded rods (13), connecting long plates (14), control rods (15), nut pairs (16) and clamping plates (17), the universal wheels (12) are uniformly and fixedly installed at the lower end of the rectangular plate (11), the threaded rods (13) are uniformly connected to the outer side of the rectangular plate (11) in a threaded connection mode, the connecting long plates (14) are fixedly installed at the upper ends of adjacent threaded rods (13) through pin shafts, the control rods (15) are fixedly installed at the upper ends of the threaded rods (13) located on the rightmost side of the front side of the rectangular plate (11), the nut pairs (16) are connected to the lower side of the threaded rods (13) in a threaded connection mode, and the clamping plates (17) are fixedly installed on the outer sides of the nut pairs (16);
the lifting frame (2) comprises a first arc-shaped cylinder (21), a second inclined square column (22), a positioning cylinder (23), a second arc-shaped cylinder (24), a fixing plate (25), an electric cylinder (26) and a U-shaped long plate (27), wherein the first arc-shaped cylinder (21) is symmetrically and fixedly installed on the left side and the right side of the upper end of the rectangular plate (11), the inclined square columns (22) are symmetrically and fixedly installed at the front end and the rear end of the first arc-shaped cylinder (21) through rotating shafts, the positioning cylinder (23) is fixedly installed between the inclined square columns (22) on the front side and the rear side, the inclined square column (22) is fixedly installed at the tail end of the inclined square column (22) through a pin shaft, the second arc-shaped cylinder (24) is fixedly installed at the upper end of the uppermost inclined square column (22) through the rotating shafts, the fixing plate (11) is fixedly installed between the inclined square columns (22), the electric cylinder (26) is symmetrically and fixedly installed at the front side and rear side of the upper end of the fixing plate (25), the tail end of the electric cylinder (26) is fixedly provided with a horseshoe-shaped long plate (27), and the front end and the rear end of the horseshoe-shaped long plate (27) are fixedly connected with the inclined square columns (22) on the front side and the rear side through rotating shafts respectively;
the anti-falling frame (3) comprises a bottom plate (30), a fixed upright post (31), a square barrel plate (32), a rotating square plate (33), a positioning ball (34), a steel wire rope (35), a winding drum (36), a handle (37) and a positioning block (38), wherein the upper end of an arc-shaped cylinder II (24) is fixedly provided with the bottom plate (30), the periphery of the upper end of the bottom plate (30) is fixedly provided with the fixed upright post (31), the square barrel plate (32) is uniformly and fixedly arranged on the fixed upright post (31), the upper end and the lower end of the square barrel plate (32) are uniformly and fixedly provided with the rotating square plate (33) through a rotating shaft along the circumferential direction, the outer end of the rotating square plate (33) is fixedly provided with the positioning ball (34), the middle part of the positioning ball (34) is provided with a small cylinder through hole, the steel wire rope (35) is connected in the small cylinder through hole in a sliding fit manner, the right side of the upper end of the bottom plate (30) is fixedly provided with the winding drum (36) through the rotating shaft, the outer end face of the winding drum (36) is fixedly connected with the tail end of the steel wire rope (35), the upper end of the winding drum (36) is connected with a handle (37) in a sliding fit mode, an annular clamping groove is formed in the upper end of the bottom plate (30) at the projection position of the rotating track of the handle (37), and positioning blocks (38) are uniformly and fixedly installed at the inner end of the annular clamping groove along the circumferential direction;
the bottom plate (30) comprises a first rectangular flat plate (301), a connecting plate (302), a second rectangular flat plate (303), an electric push rod (304), a conical cylinder (305), a push rod (306), a moving plate (307), an air bag (308) and an air pump (309), the first rectangular flat plate (301) is fixedly mounted at the upper end of the second arc cylinder (24), the connecting plate (302) is fixedly mounted in the middle of the first rectangular flat plate (301), the second rectangular flat plate (303) is fixedly mounted at the upper end of the connecting plate (302), the electric push rod (304) is fixedly mounted at the lower end of the middle of the connecting plate (302), the conical cylinder (305) is fixedly mounted at the upper end of the electric push rod (304), the push rod (306) is uniformly connected to the outer side of the connecting plate (302) in a sliding fit mode along the circumferential direction, the moving plate (307) is uniformly connected between the first rectangular flat plate (301) and the second rectangular flat plate (303) in a sliding fit mode, an air bag (308) is fixedly arranged on the moving plate (307), and an air pump (309) is fixedly arranged at the rightmost end of the air bag (308).
2. An elevator fall arrest device according to claim 1, characterised in that: the clamping plate (17) comprises a square frame (171), a serrated plate (172) and a bolt (173), the outer side of the nut pair (16) is fixedly provided with the square frame (171), the lower end of the inner side of the square frame (171) is fixedly provided with the serrated plate (172), and the outer end of the square frame (171) is uniformly connected with the bolt (173) in a threaded connection mode.
3. An elevator fall arrest device according to claim 1, characterised in that: the inclined square column (22) comprises a square column (221), a semicircular plate (222) and a baffle (223), the square column (221) is fixedly installed at the front end and the rear end of the arc-shaped cylinder I (21) symmetrically through a rotating shaft, the semicircular plate (222) is fixedly installed at the left end and the right end of the square column (221) symmetrically, and the baffle (223) is fixedly installed at the outer end of the semicircular plate (222).
4. An elevator fall arrest device according to claim 1, characterised in that: wire rope (35) are including thin steel wire (351), thin steel wire two (352), small round bead (353), roll pearl (354) and spacing ball (355), be connected with thin steel wire one (351) with sliding fit's mode in the small round column through-hole on location ball (34), the outer terminal surface winding of thin steel wire one (351) has many thin steel wire two (352), evenly cluster on thin steel wire two (352) has surperficial smooth small round bead (353), the outer terminal surface of small round bead (353) evenly is connected with roll pearl (354) with sliding fit's mode along circumference, thin steel wire one (351) and thin steel wire two (352) initial end fixed mounting have spacing ball (355).
5. An elevator fall arrest device according to claim 1, characterised in that: the winding drum (36) comprises a rolling cylinder (361), a positioning ring (362), a positioning cylinder (363), a positioning spring (364), an arc-shaped plate (365) and an extrusion round ball (366), the rolling cylinder (361) is fixedly installed on the right side of the upper end of the bottom plate (30) through a rotating shaft, the positioning ring (362) is uniformly and fixedly installed on the rolling cylinder (361), the positioning cylinder (363) is uniformly and fixedly installed on the inner end of the adjacent positioning ring (362) along the circumferential direction, the positioning spring (364) is fixedly installed in the positioning cylinder (363), the arc-shaped plate (365) is fixedly installed at the tail end of the positioning spring (364), and the inner end of the arc-shaped plate (365) is connected with the extrusion round ball (366) in a sliding fit mode.
6. An elevator fall arrest device according to claim 1, characterised in that: handle (37) include circular pinion rack (371), shape pole of falling L (372), rubber sleeve (373), locating lever (374) and trapezoidal piece (375), reel (36) upper end is connected with circular pinion rack (371) with sliding fit's mode, circular pinion rack (371) upper end fixed mounting has shape pole of falling L (372), shape pole of falling L (372) upside outer end fixed mounting has rubber sleeve (373), the terminal downside fixed mounting of shape pole of falling L (372) has locating lever (374), locating lever (374) lower extreme fixed mounting has trapezoidal piece (375).
7. An elevator fall arrest device according to claim 1, characterised in that: the positioning block (38) comprises a support rod (381), an extrusion spring (382) and a triangular block (383), the inner end of the annular clamping groove on the upper end of the bottom plate (30) is evenly and fixedly provided with the support rod (381) along the circumferential direction, the extrusion spring (382) is sleeved outside the support rod (381), one end of the extrusion spring (382) is fixedly connected with the bottom plate (30), and the other end of the extrusion spring (382) is fixedly provided with the triangular block (383).
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| CN202110032924.XA CN112875567B (en) | 2021-01-11 | 2021-01-11 | Anti-falling device of elevator |
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| Application Number | Priority Date | Filing Date | Title |
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| CN202110032924.XA CN112875567B (en) | 2021-01-11 | 2021-01-11 | Anti-falling device of elevator |
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| CN112875567B true CN112875567B (en) | 2022-06-21 |
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| CN112875567A (en) | 2021-06-01 |
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