CN115258871B - High-speed elevator safety auxiliary protection device - Google Patents

Abstract

The invention provides a high-speed elevator safety auxiliary protection device, which relates to the technical field of elevator auxiliary protection and comprises symmetrically arranged elevator guide rails, wherein the elevator guide rails are respectively installed in an elevator shaft, two sides of a car close to the elevator guide rails are respectively and fixedly connected with bearing plates, a first fixing frame is fixedly connected to the bearing plates, the first fixing frame is respectively connected with two first guide wheels in extrusion contact with the adjacent elevator guide rails through rotating shafts, two groups of transmission trigger components are arranged on the first fixing frame, the transmission trigger components are respectively matched with one end of the first guide wheels close to the car, the first fixing frame is provided with two groups of extrusion fixing components, and the two groups of extrusion fixing components on the same side are respectively arranged at two sides of the adjacent elevator guide rails. The invention uses the extrusion force between two adjacent extrusion fixing assemblies to gradually increase the extrusion force between the adjacent elevator guide rails, the elevator car is a decelerating and descending process along the elevator guide rails, and the elevator car can not be stopped instantaneously, thereby avoiding the injury of the body of the elevator riding personnel in the elevator car caused by sudden stop.

Description

High-speed elevator safety auxiliary protection device

Technical Field

The invention relates to the technical field of elevator auxiliary protection, in particular to a high-speed elevator safety auxiliary protection device.

Background

The high-speed elevator is also a traction elevator, and because the running speed of the high-speed elevator is greatly increased, the high-speed elevator is the highest-end technology in the elevator field, so that the normal and safe running of the high-speed elevator can be ensured, and the safety of passengers can be ensured.

The safety hook can be installed to high-speed elevator and ordinary traction type elevator, elevator safety hook triggers when the elevator falls, prevent that the elevator from falling to the ground and causing personnel injury in the elevator car, ordinary traction type elevator is slower at the in-process speed that descends, drop at the car in-process elevator suddenly, the safety hook can stop in the twinkling of an eye, but high-speed elevator is faster at the in-process speed that descends, the safety hook effect makes the car stop in the twinkling of an eye when falling, because inertia is very big, can cause personnel health injury in the car, the car stops in the twinkling of an eye from high-speed state simultaneously and can bring the frightening for personnel with the very big years, still can cause disease such as heart disease, the result is very serious.

Disclosure of Invention

In order to overcome the problems in the prior art, the invention provides a safety auxiliary protection device for a high-speed elevator.

In order to achieve the above purpose, the present invention provides the following technical solutions: the utility model provides a high-speed elevator safety auxiliary protection device, including the elevator guide rail that the symmetry set up, elevator guide rail installs respectively in the elevator shaft, sliding connection has the guide shoe on the elevator guide rail, guide shoe is provided with and elevator guide rail complex arresting gear, the rigid coupling has the car between the guide shoe, the haulage rope runner is installed at the top of car, the haulage rope runner passes through the haulage rope with the drive arrangement of roof and is connected, the car is close to the both sides rigid coupling in elevator guide rail respectively and has the bearing plate, the rigid coupling has first mount on the bearing plate, first mount is connected with two first leading wheels with adjacent elevator guide rail extrusion contact through the pivot respectively, first mount is connected with two second leading wheels that are used for supporting stability through the pivot, second leading wheel is perpendicular with the axle direction of first leading wheel, and with adjacent elevator guide rail extrusion contact, be provided with two sets of transmission trigger components on the first mount, transmission trigger component is close to the one end cooperation of car with first leading wheel axle respectively, first mount is provided with two sets of extrusion fixed components, two sets of extrusion fixed components of homonymy set up respectively in adjacent elevator guide rail's both sides, when triggering the car, first leading wheel makes the elevator car extrusion fixed component of two sets of extrusion fixed components through the first leading wheel extrusion stop gradually.

Further, the transmission triggering component comprises a toothed ring, the toothed ring is rotationally connected to an adjacent first fixing frame, limiting columns used for limiting are uniformly arranged on the circumferential direction of the inner ring surface of the toothed ring at intervals, a first round block is fixedly connected to one side, close to a car, of a first guide wheel rotating shaft, the center of the first round block is overlapped with the center of the adjacent toothed ring, square blind holes are circumferentially formed in the first round block, limiting hooks are slidably connected in the square blind holes of the first round block, the limiting hooks are matched with the limiting columns to transmit power on the first guide wheel to the toothed ring, first tension springs used for limiting are arranged in the square blind holes of the first round block, and two ends of each first tension spring are fixedly connected with the adjacent first round block and the limiting hooks respectively.

Further, the extrusion fixed subassembly is including the reducing gear box, the reducing gear box is installed on adjacent bearing plate, the input rigid coupling of reducing gear box has unidirectional gear, unidirectional gear and adjacent ring gear meshing, the output rigid coupling of reducing gear box has first sprocket, the bearing plate rigid coupling has two second mounts, two second mounts of homonymy are located adjacent elevator guide rail both sides respectively, second mount sliding connection has the threaded rod, be provided with the spout that is used for spacing on the threaded rod, the threaded rod passes through spout and adjacent second mount sliding fit, the second mount rotates and is connected with first thread bush, the threaded rod is connected with adjacent first thread bush, the outer ring face of first thread bush is provided with the tooth that is used for chain drive, adjacent first sprocket and first thread bush pass through chain drive, the one end that every threaded rod is close to the elevator guide rail all fixedly connected with the friction block that is used for friction to slow down.

Further, the elevator car further comprises symmetrically distributed buffer speed reducing mechanisms which are arranged on two sides of the elevator car, the buffer speed reducing mechanisms enable the elevator to stably reduce speed and descend in the falling process and stop on the two elevator guide rails, the buffer speed reducing mechanisms comprise fixing plates, the fixing plates are fixedly connected to one side close to the elevator guide rails 1, a group of sliding rods are connected to the fixing plates in a sliding mode, one ends of the sliding rods are fixedly connected with first connecting plates, the other ends of the sliding rods are fixedly connected with supporting plates, buffer springs for reducing speed are arranged on the sliding rods, sliding seats are arranged on one sides of the supporting plates in a sliding mode, the sliding seat is fixedly connected with a limiting rod, a reset spring is arranged between the sliding seat and one side, close to the car, of the adjacent supporting plate, the limiting rod is matched with the inclined groove of the adjacent elevator guide rail to enable the car to decelerate, the first fixing frame is provided with two groups of trigger assemblies, the trigger assemblies are matched with the rotating shafts of the adjacent second guide wheels, the supporting plate is provided with a limiting assembly, the limiting assemblies are respectively matched with and contacted with the adjacent sliding seat, a row of inclined grooves used for limiting are respectively arranged on the opposite sides of the elevator guide rail, the trigger assemblies transmit power of the second guide wheels to the limiting assembly, and the limiting rod is matched with the inclined grooves of the elevator guide rail.

Further, the trigger assembly comprises a fixed seat, the fixed seat is fixedly connected to the first fixed frame respectively, one side of the first fixed frame, which is close to the elevator guide rail, is rotationally connected with a rotating ring, an outer ring surface of the rotating ring is provided with teeth for chain transmission, an inner ring surface of the rotating ring is circumferentially provided with a limiting blind hole, a second round block is rotationally connected to the fixed seat, the second round block coincides with a central point of an adjacent rotating ring, a square blind hole corresponding to the limiting blind hole of the rotating ring is circumferentially arranged on the second round block, a throwing block is slidably connected in the square blind hole of the second round block, a second tension spring is fixedly connected between the second round block and the throwing block, one end, which is far away from the elevator guide rail, of a rotating shaft of the second guide wheel is fixedly connected with a round plate, and the round plate is matched with the adjacent second round block.

Further, a friction plate for resisting friction and high temperature is arranged on one side of the circular plate, which is in contact with the second circular block, and a through hole for increasing the heat dissipation area is formed in the circular plate.

Further, spacing subassembly is including the third mount, the third mount rigid coupling is in one side that the car is close to the elevator guide rail, rotate on the third mount and be connected with the spline pole, one side threaded connection that the third mount is close to adjacent sliding seat has the second thread bush, the middle part cavity of second thread bush is provided with the spline groove, the one end rigid coupling that the second thread bush is close to the sliding seat has the connecting rod, the connecting rod respectively with the circular blind hole spacing cooperation of adjacent sliding seat, one end and the adjacent second thread bush spline connection of spline pole, the other end rigid coupling of spline pole has the second sprocket, the second sprocket passes through chain drive with adjacent swivel joint.

Further, still including haulage rope fixed establishment, haulage rope fixed establishment sets up in the top of car, haulage rope fixed establishment is used for fixing the haulage rope at the car in-process that falls, haulage rope fixed establishment is including the mounting bracket, the mounting bracket rigid coupling is in the top of car, the haulage rope runner is located the middle part of mounting bracket, the mounting bracket symmetry slides and is provided with the extrusion piece that is used for fixing the haulage rope, the both ends of extrusion piece have first rack fixedly connected with respectively, the both sides of mounting bracket rotate respectively and are connected with the spur gear, spur gear and two adjacent first rack meshing, be provided with drive assembly on two adjacent first connecting plates, drive assembly and two adjacent spur gear cooperation make extrusion piece press from both sides tight haulage rope all the time.

Further, a row of arc-shaped grooves are formed in one side, close to the traction rope, of the mounting frame, a row of arc-shaped grooves are formed in one side, close to the traction rope, of the extrusion block, the contact area between the mounting frame and the traction rope is increased through the cooperation of the arc-shaped grooves of the extrusion block, and friction plates for increasing friction force are mounted on the inner sides of the arc-shaped grooves of the mounting frame and the extrusion block.

Further, the drive assembly includes two sets of guide bars, and two sets of guide bars are respectively rigid coupling in the top of car, and guide bar sliding connection has the second connecting plate, and two second connecting plates are located the both sides of mounting bracket respectively, and the second connecting plate rigid coupling has the second rack, and the second rack meshes with adjacent straight-tooth wheel each other, and first connecting plate rigid coupling has the L shaped plate, is provided with the third extension spring between L shaped plate and the second connecting plate.

The invention has the beneficial effects that:

1. utilize first leading wheel and second leading wheel extrusion to provide better stability for the in-process that the car reciprocated on elevator guide rail, avoid the car to cause to rock when moving or taking advantage of the ladder personnel business turn over.

2. The extrusion force between two adjacent groups of extrusion fixing assemblies and adjacent elevator guide rails is gradually increased, the elevator car is in a deceleration descending process along the elevator guide rails, the elevator car can not be stopped instantaneously, and the injury of the body of passengers in the elevator car caused by sudden stop of the elevator car is avoided; the limit hook and the limit column are matched, so that the reduction of the rotation speed of the first circular block is avoided, the limit hook and the limit column are separated, and the friction block cannot extrude the elevator guide rail.

3. The speed of the car is reduced by utilizing the elasticity of the buffer spring and the friction block, and the falling car is fixed; under normal condition, when the car stops moving, the fixed plate is in the lower part of slide bar, if the friction block of both sides loses the back, in order to guarantee that the car can not fall, the fixed plate moves to the bottommost along the slide bar downwards, under the limiting displacement of backup pad, makes the car stop the downwardly moving, further prevents that the car from falling.

4. Utilize two extrusion piece and mounting bracket cooperation to press from both sides tight fixedly to the haulage rope, two third extension springs provide ascending traction force for the second connecting plate, avoid taking place to rock when taking advantage of ladder personnel walk out from the car in, cause friction block and elevator guide rail to take place to skid, the car descends in the twinkling of an eye and brings danger to taking advantage of ladder personnel.

Drawings

Fig. 1 is a schematic perspective view of the present invention.

Fig. 2 is a schematic view of a partial perspective structure of the present invention.

Fig. 3 is a schematic view of a partial right-side perspective structure of the present invention.

Fig. 4 is a schematic view of a partial left-hand perspective structure of the present invention.

Fig. 5 is a schematic top perspective view of the transmission trigger assembly of the present invention.

Fig. 6 is a schematic view of a partially cut-away perspective structure of a transmission trigger assembly of the present invention.

Fig. 7 is a schematic view of a partially cut-away perspective view of an extrusion fixture of the present invention.

Fig. 8 is a schematic side view of a buffer gear mechanism of the present invention.

Fig. 9 is a schematic bottom perspective view of the buffering mechanism of the present invention.

Fig. 10 is a schematic cross-sectional perspective view of a trigger assembly of the present invention.

Fig. 11 is a schematic cross-sectional perspective view of a spacing assembly of the present invention.

Fig. 12 is a schematic perspective view of a traction rope fixing mechanism according to the present invention.

Fig. 13 is a schematic perspective view of a traction rope fixing mechanism according to the present invention.

Fig. 14 is a partially enlarged perspective view of the traction rope fixing mechanism of the present invention.

Reference numerals in the figures: 1-elevator guide rail, 2-guide shoe, 201-car, 301-bearing plate, 302-first fixing frame, 303-first guide wheel, 304-second guide wheel, 305-toothed ring, 306-limit post, 307-first round block, 308-limit hook, 309-first tension spring, 310-reduction box, 311-unidirectional gear, 312-first sprocket, 313-second fixing frame, 314-threaded rod, 315-first threaded sleeve, 316-friction block, 401-fixed plate, 402-sliding rod, 4021-first connecting plate, 403-supporting plate, 404-buffer spring, 405-sliding seat, 406-limit rod, 4061-return spring, 407-fixed seat, 408-rotating ring, 409-second round block, 410-throwing block, 411-second tension spring, 412-round plate, 413-third fixing frame, 414-spline rod, 415-second threaded sleeve, 416-second sprocket, 501-mounting frame, 502-extrusion block, 503-first rack, 504-gear, 505-guide rod, 507-second tension spring, 506-second rack, 508-third connecting plate.

Detailed Description

In order to make the objects, technical solutions and advantages of the present invention more apparent, the technical solutions in the preferred embodiments of the present invention will be described in more detail with reference to the accompanying drawings in the preferred embodiments of the present invention. In the drawings, the same or similar reference numerals refer to the same or similar components or components having the same or similar functions throughout. The described embodiments are some, but not all, embodiments of the invention. The embodiments described below by referring to the drawings are illustrative and intended to explain the present invention and should not be construed as limiting the invention. All other embodiments, which can be made by those skilled in the art based on the embodiments of the invention without making any inventive effort, are intended to be within the scope of the invention. Embodiments of the present invention will be described in detail below with reference to the accompanying drawings.

Example 1

The utility model provides a high-speed elevator safety auxiliary protection device, according to the fig. 1-7 show, including the elevator guide rail 1 that the symmetry set up, elevator guide rail 1 installs in the elevator shaft through the bolt respectively, sliding connection has guide shoes 2 on the elevator guide rail 1, guide shoes 2 are provided with the arresting gear with elevator guide rail 1 complex, the bolted connection has car 201 between guide shoes 2, the top of car 201 is through bolted connection having haulage rope runner, the haulage rope runner passes through the haulage rope to be connected with the drive arrangement of roof, the left and right sides of car 201 is bolted connection respectively has bearing plate 301, the last bolted connection of bearing plate 301 has first mount 302, first mount 302 is connected with two first leading wheels 303 with adjacent elevator guide rail 1 extrusion contact through the pivot respectively, two first leading wheels 303 of homonymy are located adjacent elevator guide rail 1's front and back both sides respectively, the first fixing frame 302 is connected with two second guide wheels 304 for supporting stability through a rotating shaft, the two second guide wheels 304 on the same side are respectively positioned at the front side and the rear side of the adjacent elevator guide rails 1, the second guide wheels 304 are vertical to the axial direction of the first guide wheels 303 and are in extrusion contact with the adjacent elevator guide rails 1, the first guide wheels 303 and the second guide wheels 304 ensure that the car 201 stably runs when sliding along the elevator guide rails 1, meanwhile, the car 201 is prevented from shaking when passengers enter and exit the car 201, two groups of transmission triggering components are arranged on the first fixing frame 302 and are respectively matched with the inner ends of the first guide wheels 303, the first fixing frame 302 is provided with two groups of extrusion fixing components, the two groups of extrusion fixing components on the same side are respectively arranged at the front side and the rear side of the adjacent elevator guide rails 1, when the car 201 falls down, the rotation speed of the first guide wheels 303 is increased, the first guide wheel 303 enables the two groups of extrusion fixing assemblies on the same side to gradually clamp the adjacent elevator guide rails 1 through the transmission triggering assembly, so that the car 201 is prevented from suddenly stopping, and the personnel body inside the car 201 is prevented from being injured.

When the car 201 normally runs between two elevator guide rails 1, the first guide wheels 303 and the second guide wheels 304 on the left side and the right side of the car 201 respectively rotate along the adjacent elevator guide rails 1, the first guide wheels 303 and the second guide wheels 304 squeeze the elevator guide rails 1, better stability is provided for the process of moving the car 201 up and down, the car 201 is prevented from shaking during running or elevator riding personnel entering and exiting, when the car 201 suddenly fails and falls during moving downwards, the speed of the car 201 is continuously increased due to the acceleration of gravity, the car 201 drives the first guide wheels 303 to move downwards along the elevator guide rails 1, the rotation speed of the first guide wheels 303 on the two sides of the elevator guide rails 1 is increased, the rotating shafts of the first guide wheels 303 drive the transmission triggering components on the first guide wheels to rotate, the transmission triggering components transmit power transmitted on the first guide wheels 303 to the extrusion fixing components, the two adjacent groups of extrusion fixing components are close to each other and clamp the front side and the rear side of the adjacent elevator guide rails 1, the extrusion force between the two adjacent groups of extrusion fixing components to the adjacent elevator guide rails 1 is gradually increased during the process of falling the car 201, so that the car 201 is prevented from being suddenly stopped along the elevator guide rails 201 or from falling down, and the car 201 is prevented from being damaged during the process of stopping moving suddenly and moving upwards, and the car 201 is stopped, and the car is stopped in a state of the elevator car is stopped, and the car is stopped in a state suddenly and stopped, and the car is in a state is stopped.

Example 2

On the basis of embodiment 1, as shown in fig. 3-6, the transmission triggering assembly comprises a toothed ring 305, the toothed ring 305 is rotationally connected to the adjacent first fixing frame 302, the inner annular surface of the toothed ring 305 is circumferentially uniformly distributed at intervals and is connected with a limiting post 306 for limiting through bolts, one side of the rotating shaft of the first guide wheel 303, which is close to the car 201, is connected with a first circular block 307 in a key manner, when the car 201 falls down in the process, the effect of gravity increases the downward moving speed of the car 201, the rotating shaft of the first guide wheel 303 drives the rotating speed of the first circular block 307 to increase, the first circular block 307 coincides with the center of the adjacent toothed ring 305, square blind holes are circumferentially arranged on the first circular block 307, limiting hooks 308 are respectively and slidably connected in the square blind holes of the first circular block 307, the centrifugal force generated by rotation of the first circular block 307 enables the limiting hooks 308 on the first circular block 307 to be far away, the limiting posts 306 are matched with the limiting post 306 to transmit power on the first guide wheel to the toothed ring 305, the far-away limiting hooks 308 hook the limiting post 306, the first circular block 307 drives the rotating speed of the first circular block 307 to increase, the rotating speed of the first circular block 307, the first circular block 307 is coincident with the centers of the adjacent first circular blocks 307, the first round blocks 309 are respectively arranged on the first ends of the first round blocks 309 and the adjacent first round blind holes 309 are fixedly connected with the first blind holes 309.

According to fig. 7, the extrusion fixing assembly comprises a reduction gearbox 310, the reduction gearbox 310 is connected to the adjacent bearing plates 301 by bolts, the input end of the reduction gearbox 310 is connected with a one-way gear 311 by keys, the one-way gear 311 is meshed with the adjacent toothed ring 305, the one-way gear 311 prevents the input end of the reduction gearbox 310 from reversing and preventing displacement after the car 201 stops, the output end of the reduction gearbox 310 is connected with a first sprocket 312 by keys, the reduction gearbox 310 amplifies the power torque of the input end and outputs the power torque from the output end, the bearing plates 301 are connected with two second fixing frames 313 by bolts, the two second fixing frames 313 on the same side are respectively positioned on two sides of the adjacent elevator guide rails 1, the second fixing frames 313 are connected with threaded rods 314 in a sliding manner, the threaded rods 314 are provided with sliding grooves for limiting, the threaded rods 314 are in sliding fit with the adjacent second fixing frames 313 through the sliding grooves, the second fixing frame 313 is rotationally connected with a first thread bush 315, the threaded rod 314 is connected with the adjacent first thread bush 315, the outer ring surface of the first thread bush 315 is provided with teeth for chain transmission, the reduction gearbox 310 transmits power amplified by torque to the first thread bush 315 through a chain, the adjacent first thread bush 315 approaches to the elevator guide rail 1 by rotation of the first thread bush 315, the adjacent first sprocket 312 and the first thread bush 315 are transmitted through the chain, one end of each threaded rod 314 near the elevator guide rail 1 is welded with two adjacent friction blocks 316 for friction reduction, which are gradually extruded onto the elevator guide rail 1, and extrusion force is gradually increased to offset the gravity acceleration of the elevator car 201, the friction force between the friction blocks 316 and the elevator guide rail 1 is gradually increased to enable the elevator car 201 to perform the deceleration motion with gradually increased acceleration, the car 201 is prevented from stopping instantaneously to cause injury to the bodies of the interior personnel.

In the falling process of the car 201, the rotation speed of the first guide wheel 303 and the second guide wheel 304 is increased, the rotating shaft of the first guide wheel 303 drives the first circular block 307 on the first guide wheel 303 to rotate circumferentially, the first circular block 307 utilizes centrifugal force to enable the limit hooks 308 on the first circular block 307 to be far away, the first tension springs 309 are stretched, the limit hooks 308 move outwards to hook the limit posts 306 to cooperate, the first circular block 307 drives the toothed ring 305 to rotate through the limit hooks 308, the toothed ring 305 rotates along the first fixing frame 302, the toothed ring 305 drives the adjacent one-way gears 311 to rotate, the one-way gears 311 drive the input end of the reduction gearbox 310 to rotate, the torque input by the reduction gearbox 310 is doubled, the output end of the reduction gearbox 310 drives the first sprocket 312 on the reduction gearbox to rotate, the first sprocket 312 drives the adjacent first thread bush 315 to rotate through a chain, the first thread bush 315 drives the threaded rod 314 to move through threads, the two adjacent front and rear threaded rods 314 respectively drive the friction blocks 316 on the two adjacent front and rear threaded rods to move close to each other, the two adjacent front and rear friction blocks 316 are gradually extruded onto the adjacent elevator guide rail 1, in the descending process of the elevator car 201, the descending speed of the elevator car 201 is gradually slowed down by utilizing the gradually increased extrusion force between the adjacent front and rear friction blocks 316 and the elevator guide rail 1, the emergency stop occurring when the elevator car 201 falls is avoided, the personnel in the elevator car 201 are injured, in the downward decelerating process of the elevator car 201, the speed of the first guide wheel 303 is gradually reduced, the limit hook 308 is matched with the limit post 306, the rotation speed of the first circular block 307 is prevented from being reduced, the limit hook 308 is prevented from being separated from the limit post 306, the friction blocks 316 cannot extrude the elevator guide rail 1, after the elevator stops, the elevator car 201 is opened by a rescuer, the rescue worker can rescue the elevator car 201, and the rescue device is reset, and the maintenance is carried out for continuous use.

Example 3

On the basis of embodiment 2, according to the invention shown in fig. 8-11, the elevator car further comprises symmetrically distributed buffer speed reducing mechanisms, the buffer speed reducing mechanisms are arranged on two sides of the elevator car 201, the buffer speed reducing mechanisms enable the elevator to stably reduce speed and descend in the falling process and stop on two elevator guide rails 1, the buffer speed reducing mechanisms comprise a fixing plate 401, the fixing plate 401 is connected with one side close to the elevator guide rails 1 through bolts, a group of sliding rods 402 are connected onto the fixing plate 401 in a sliding manner, each group of sliding rods 402 is provided with two, a first connecting plate 4021 is welded on the upper ends of the adjacent sliding rods 402, a supporting plate 403 is welded on the lower ends of the sliding rods 402, buffer springs 404 for reducing speed are sleeved on the sliding rods 402, when the elevator car 201 falls, the buffer springs 404 are compressed to reduce speed and buffer the elevator car 201, a sliding seat 405 is arranged on one side of the supporting plate 403 in a sliding manner, a limiting rod 406 is fixedly connected to the sliding seat 405, a reset spring 4061 is arranged between the sliding seat 405 and one side, close to the car 201, of the adjacent supporting plate 403, a limiting rod 406 is matched with an inclined groove of the adjacent elevator guide rail 1 to enable the car 201 to be decelerated, the first fixing frame 302 is provided with two groups of triggering components, the triggering components are matched with the rotating shafts of the adjacent second guide wheels 304, the supporting plate 403 is provided with limiting components, the limiting components are respectively matched with the adjacent sliding seat 405, the rotation speed of the second guide wheels 304 is increased, the limiting components are released from limiting the sliding seat 405 by the triggering components, the sliding seat 405 drives the limiting rod 406 on the sliding seat 405 to move towards the elevator guide rail 1 under the elastic force of the reset spring 4061, the limiting rod 406 is matched with the adjacent elevator guide rail 1, a row of inclined grooves for limiting are respectively arranged on the opposite sides of the elevator guide rail 1, the triggering components transmit power of the second guide wheels 304 to the limiting components, the limiting rod 406 is matched with the inclined groove of the elevator guide rail 1 to fix the car 201 on the elevator guide rail 1, so that the car 201 is prevented from falling to the ground along the elevator guide rail 1, and the body of a passenger is prevented from being injured.

According to the embodiment shown in fig. 9 and 10, the trigger assembly comprises a fixed seat 407, the fixed seat 407 is respectively connected to the first fixed frames 302 by bolts, one side of each of the two adjacent first fixed frames 302 is rotatably connected with a rotating ring 408, the outer ring surface of the rotating ring 408 is provided with teeth for chain transmission, the inner ring surface of the rotating ring 408 is circumferentially provided with a limiting blind hole, the fixed seat 407 is rotatably connected with a second circular block 409, the second circular block 409 coincides with the center point of the adjacent rotating ring 408, the second circular block 409 is circumferentially provided with a square blind hole corresponding to the limiting blind hole of the rotating ring 408, the square blind hole of the second circular block 409 is internally slide-connected with a throwing block 410, when the car 201 falls, the throwing block 410 on the second circular block 409 is far away from the limiting blind hole of the rotating ring 408, the second circular block 409 drives the adjacent rotating ring 408 to rotate, the rotating ring 408 drives the limiting assembly to be far away from the adjacent sliding seat 405, a second tension spring 411 is fixedly connected between the second circular block 409 and the throwing block 410, the outer end of the second guide wheel 304 is connected with a circular plate 412, and the second circular block 412 is in contact with the second circular block 412, and the second circular block 409 is not in contact with the second circular block 412, and the second circular block 409 is in high-temperature resistant friction-plate is arranged between the adjacent circular plate 409 and the circular plate is not in contact with the circular plate 409.

According to the illustration shown in fig. 11, the limiting assembly comprises a third fixing frame 413, the third fixing frame 413 is connected to one side of the car 201, which is close to the elevator guide rail 1, a spline rod 414 is connected to the third fixing frame 413 in a rotating manner, one side of the third fixing frame 413, which is close to the adjacent sliding seat 405, is connected with a second thread bush 415 in a threaded manner, a spline groove is formed in a middle cavity of the second thread bush 415, the spline rod 414 drives the second thread bush 415 to rotate, the two adjacent second thread bushes 415 are far away, a connecting rod is welded to one end, which is close to the sliding seat 405, of the second thread bush 415, the connecting rod is respectively in limiting fit with a round blind hole of the adjacent sliding seat 405, the connecting rod limits the adjacent sliding seat 405, the limiting rod 406 on the sliding seat 405 is far away from the adjacent elevator guide rail 1, the inner end of the spline rod 414 is connected with the adjacent second thread bush 415 in a spline manner, the outer end of the spline rod 414 is connected with a second sprocket 416 in a key manner, and the second sprocket 416 is driven with the adjacent rotating ring 408 through a chain.

According to the illustration of fig. 12-14, the elevator car further comprises a traction rope fixing mechanism, wherein the traction rope fixing mechanism is arranged at the top of the elevator car 201, the traction rope fixing mechanism is used for fixing a traction rope in the falling process of the elevator car 201, the traction rope fixing mechanism comprises a mounting frame 501, the mounting frame 501 is connected with the top of the elevator car 201 through bolts, a traction rope rotating wheel is positioned in the middle of the mounting frame 501, the mounting frame 501 is symmetrically and slidingly provided with extrusion blocks 502 for fixing the traction rope, the two extrusion blocks 502 and the mounting frame 501 are matched to clamp the traction rope, so that the elevator car 201 stops moving, the elevator car 201 is prevented from vibrating when a person walks from the elevator car 201, slipping between a friction block 316 and an elevator guide rail 1 is avoided, the elevator car 201 is caused to descend instantly, danger is caused to a person taking an elevator, one side of the mounting frame 501 close to the traction rope is provided with a row of arc-shaped grooves, A row of arc recess is also offered in the outside of extrusion piece 502, the arc recess cooperation of mounting bracket 501 and extrusion piece 502 increases the area of contact between with the haulage rope, the fixed effect of mounting bracket 501 and extrusion piece 502 to the haulage rope has been improved, the friction plate that is used for increasing frictional force is all installed to the arc recess medial surface of mounting bracket 501 and extrusion piece 502, avoid mounting bracket 501 and extrusion piece 502 to take place to skid with the haulage rope, the both ends of extrusion piece 502 rigid coupling respectively has first rack 503, the both sides of mounting bracket 501 are rotated respectively and are connected with spur gear 504, spur gear 504 meshes with two adjacent first racks 503, be provided with drive assembly on two adjacent first connecting plates 4021, drive assembly cooperates with two adjacent spur gears 504, make extrusion piece 502 press from both sides tight haulage rope all the time.

According to fig. 13 and 14, the driving assembly comprises two sets of guide rods 505, the two sets of guide rods 505 are welded on the top of the car 201 respectively, the guide rods 505 are slidably connected with second connecting plates 506, the two second connecting plates 506 are located on two sides of the mounting frame 501 respectively, the second connecting plates 506 are fixedly connected with second racks 507, the second racks 507 are meshed with adjacent straight gears 504, the second racks 507 move upwards to enable the gears 504 to rotate, two adjacent first racks 503 are far away, the first racks 503 on two sides drive the upper extrusion blocks 502 of the first racks to be far away from each other respectively, an L-shaped plate 508 is welded on the first connecting plate 4021, a third tension spring 509 is arranged between the L-shaped plate 508 and the second connecting plates 506, when the first connecting plate 4021 moves upwards, the two L-shaped plates 508 stretch the third tension springs 509 respectively, and the two second connecting plates 506 move upwards under the tension of the third tension springs 509, and simultaneously the two second connecting plates 506 always have upward traction force by utilizing the tension of the third tension springs 509.

When the car 201 falls, the rotation speed of the second guide wheel 304 is increased, the second guide wheel 304 drives the adjacent second round block 409 to rotate through the round plate 412 on the second guide wheel, the adjacent flighting block 410 is far away, the flighting block 410 is matched with the limit blind hole of the adjacent rotating ring 408, the second tension spring 411 is stretched, the second round block 409 drives the rotating ring 408 to rotate through the flighting block 410, the rotating ring 408 drives the spline rod 414 to rotate through the chain and the second sprocket 416, the spline rod 414 drives the adjacent second thread bush 415 to rotate through the spline, the second thread bush 415 is far away from the adjacent sliding seat 405, the connecting rod on the second thread bush 415 is in loose fit with the round blind hole of the adjacent sliding seat 405, the sliding seat 405 is driven by the sliding seat 405 to approach the elevator guide rail 1 along the adjacent supporting plate 403 under the elastic force of the reset spring 4061, the limiting rod 406 is matched with the inclined groove of the elevator guide rail 1 on the same side, the fixing plates 401 on two sides of the car 201 drive the fixing plates 401 to downwards move, the buffer springs 404 on two sides respectively squeeze the buffer springs 404, the buffer springs 404 gradually compress, the buffer springs 404 gradually, the connecting rod on the second thread bush 415 drives the adjacent second thread bush 415 to rotate through the spline, the circular blind hole on the adjacent second thread bush 415 is out of the adjacent second guide wheel 405, the second guide wheel 201 is in the elastic force of the reset spring, the second guide wheel 201 is stopped by the reset of the sliding seat 201, and the second car 201 is stopped under the effect of the action of the reset of the buffer spring 201, and the second tension spring 201 is stopped, and the running the car 201.

The sliding distance of the two fixing plates 401 moving downwards is the same as the length of the sliding rod 402, under normal conditions, when the car 201 stops moving, the fixing plates 401 are positioned at the lower part of the sliding rod 402, if the friction blocks 316 at two sides lose function, in order to ensure that the car 201 cannot fall, the fixing plates 401 move downwards to the bottommost part along the sliding rod 402, and under the limiting effect of the supporting plate 403, the car 201 stops moving downwards, so that the car 201 is further prevented from falling.

When the car 201 falls, the two first connecting plates 4021 move upwards relative to the car 201, the two first connecting plates 4021 drive the third tension springs 509 on two sides to move upwards through the L-shaped plates 508 on the first connecting plates 4021, the third tension springs 509 on two sides are stretched, the third tension springs 509 on two sides drive the two second connecting plates 506 and the second racks 507 on the second connecting plates to move upwards, the two second racks 507 move upwards to drive the two spur gears 504 on two sides to rotate, the two spur gears 504 on two sides respectively drive the two adjacent first racks 503 to move away from each other, the two first racks 503 on two sides drive the extrusion blocks 502 fixedly connected on the first racks to approach the mounting frame 501, the two extrusion blocks 502 press the traction ropes outwards, the traction ropes are enabled to contact the arc-shaped grooves of the mounting frame 501, the two extrusion blocks 502 are matched with the mounting frame 501 to clamp and fix the traction ropes, the two third tension springs 509 provide upward traction force for the second connecting plates 506, and the car 201 is prevented from shaking when a passenger walks out, the friction block 316 and the elevator guide rail 1 are caused to slide, and the car 201 descends instantly to cause a frightening to the passenger.

After all passengers in the car 201 move out, the rescue workers control the car 201 to reset, and reset other parts on the car 201, so that the car 201 returns to normal operation.

Finally, it should be noted that: the above embodiments are only for illustrating the technical solution of the present invention, and not for limiting the same; although the invention has been described in detail with reference to the foregoing embodiments, it will be understood by those of ordinary skill in the art that: the technical scheme described in the foregoing embodiments can be modified or some or all of the technical features thereof can be replaced by equivalents; such modifications and substitutions do not depart from the spirit of the invention.

Claims (9)

1. A high-speed elevator safety auxiliary protection device is characterized in that: the elevator guide rail (1) is symmetrically arranged, the elevator guide rail (1) is respectively arranged in an elevator shaft, guide shoes (2) are slidably connected on the elevator guide rail (1), two second guide wheels (304) which are used for supporting stability are fixedly connected between the guide shoes (2) and are arranged in a way of being perpendicular to the axis direction of the first guide wheels (1), a traction rope rotating wheel is arranged at the top of the elevator car (201), the traction rope rotating wheel is connected with a driving device on the roof through a traction rope, two sides of the elevator car (201) close to the elevator guide rail (1) are respectively fixedly connected with a bearing plate (301), a first fixing frame (302) is fixedly connected with a first fixing frame (302) on the bearing plate (301), two first guide wheels (303) which are in extrusion contact with the adjacent elevator guide rail (1) are respectively connected through rotating shafts, the first fixing frames (302) are connected with two second guide wheels (304) which are used for supporting stability through rotating shafts, two groups of trigger components are arranged on the first fixing frames (302) and are respectively adjacent to the two sides of the elevator guide rails (1) when the two groups of trigger components are respectively arranged close to the elevator guide rails (201) in a way, and the two groups of trigger components are respectively arranged on two sides of the elevator guide rail (201) when the elevator guide components are matched with the two adjacent elevator guide rails (201), the first guide wheels (303) enable two groups of extrusion fixing assemblies on the same side to gradually clamp adjacent elevator guide rails (1) through the transmission triggering assembly, so that the car (201) is prevented from stopping suddenly; the transmission triggering assembly comprises a toothed ring (305), the toothed ring (305) is rotationally connected to an adjacent first fixing frame (302), limiting columns (306) used for limiting are uniformly arranged on the inner ring surface of the toothed ring (305) at intervals in the circumferential direction, a first round block (307) is fixedly connected to one side, close to the car (201), of a rotating shaft of the first guide wheel (303), the center of the first round block (307) coincides with the center of the adjacent toothed ring (305), square blind holes are formed in the circumferential direction of the first round block (307), limiting hooks (308) are slidably connected in the square blind holes of the first round block (307), the limiting hooks (308) are matched with the limiting columns (306) to transmit power on the first guide wheel (303) to the toothed ring (305), first tension springs (309) used for limiting are arranged in the square blind holes of the first round block (307), and two ends of each first tension spring (309) are fixedly connected with the adjacent first round block (307) and the limiting hooks (308) respectively.

2. A high-speed elevator safety auxiliary protection device as defined in claim 1, wherein: the extrusion fixing assembly comprises a reduction gearbox (310), the reduction gearbox (310) is arranged on an adjacent bearing plate (301), a one-way gear (311) is fixedly connected to the input end of the reduction gearbox (310), the one-way gear (311) is meshed with an adjacent toothed ring (305), a first chain wheel (312) is fixedly connected to the output end of the reduction gearbox (310), two second fixing frames (313) are fixedly connected to the bearing plate (301), the two second fixing frames (313) on the same side are respectively located on two sides of an adjacent elevator guide rail (1), a threaded rod (314) is slidably connected to the second fixing frames (313), a sliding groove for limiting is arranged on the threaded rod (314), the threaded rod (314) is slidably matched with the adjacent second fixing frames (313) through the sliding groove, the second fixing frames (313) are rotatably connected with a first thread sleeve (315), the threaded rod (314) is connected with the adjacent first thread sleeve (315), teeth for chain transmission are arranged on the outer annular surface of the first thread sleeve (315), the adjacent first chain wheel (312) and the first thread sleeve (314) are fixedly connected with the first thread rod (315) through transmission, and one end, close to each elevator guide rail (1), which is provided with a friction block (315).

3. A high-speed elevator safety auxiliary protection device as defined in claim 1, wherein: the elevator car is characterized by further comprising symmetrically distributed buffer speed reducing mechanisms, the buffer speed reducing mechanisms are arranged on two sides of the elevator car (201), the elevator is stably decelerated and descends in the falling process and stops on two elevator guide rails (1), each buffer speed reducing mechanism comprises a fixed plate (401), each fixed plate (401) is fixedly connected to one side close to the elevator guide rail (1), a group of sliding rods (402) are connected to the fixed plates (401) in a sliding manner, one end of each sliding rod (402) is fixedly connected with a first connecting plate (4021), a supporting plate (403) is fixedly connected to the other end of each sliding rod (402), a buffer spring (404) for reducing speed is arranged on each sliding rod (402), a sliding seat (405) is slidably arranged on one side of each supporting plate (403), a limiting rod (406) is fixedly connected to one side, close to the elevator car (201), of each sliding seat (405) is provided with a reset spring (4061), each limiting rod (406) is matched with an inclined groove of the adjacent elevator guide rail (1) to enable the elevator car (201) to be decelerated, two trigger components are arranged on the first fixing frames (302), the trigger components are in a triggering component and the second guide components are matched with the adjacent guide wheels (403) to the corresponding limiting grooves (405) in a sliding mode, one side is contacted with the adjacent guide rails (1) respectively, the triggering component transmits the power of the second guide wheel (304) to the limiting component, so that the limiting rod (406) is matched with the inclined groove of the elevator guide rail (1).

4. A high-speed elevator safety auxiliary protection device according to claim 3, characterized in that: the trigger assembly comprises a fixed base (407), the fixed base (407) is fixedly connected to the first fixed frame (302) respectively, one side of the first fixed frame (302) close to the elevator guide rail (1) is rotationally connected with a rotating ring (408), the outer ring surface of the rotating ring (408) is provided with teeth for chain transmission, the inner ring surface of the rotating ring (408) is circumferentially provided with a limiting blind hole, the fixed base (407) is rotationally connected with a second round block (409), the second round block (409) coincides with the central point of the adjacent rotating ring (408), the second round block (409) is circumferentially provided with a square blind hole corresponding to the limiting blind hole of the rotating ring (408), a second tension spring (411) is fixedly connected between the square blind hole of the second round block (409) and the rotating ring (410), one end, far away from the elevator guide rail (1), of a rotating shaft of the second guide wheel (304) is fixedly connected with a round plate (412), and the round plate (412) is matched with the adjacent second round block (409).

5. A high-speed elevator safety auxiliary protection device according to claim 4, characterized in that: a friction plate for resisting friction and high temperature is arranged on one side, in contact with the second circular block (409), of the circular plate (412), and through holes for increasing the heat dissipation area are formed in the circular plate (412).

6. A high-speed elevator safety auxiliary protection device according to claim 4, characterized in that: the limiting assembly comprises a third fixing frame (413), the third fixing frame (413) is fixedly connected to one side, close to the elevator guide rail (1), of the car (201), a spline rod (414) is connected to the third fixing frame (413) in a rotating mode, one side, close to the adjacent sliding seat (405), of the third fixing frame (413) is connected with a second thread sleeve (415) in a threaded mode, a spline groove is formed in a middle cavity of the second thread sleeve (415), one end, close to the sliding seat (405), of the second thread sleeve (415) is fixedly connected with a connecting rod, the connecting rod is in limiting fit with a round blind hole of the adjacent sliding seat (405), one end of the spline rod (414) is in spline connection with the adjacent second thread sleeve (415), a second sprocket (416) is fixedly connected to the other end of the spline rod (414), and the second sprocket (416) and the adjacent rotating ring (408) are in chain transmission.

7. A high-speed elevator safety auxiliary protection device as defined in claim 1, wherein: still including haulage rope fixed establishment, haulage rope fixed establishment sets up in the top of car (201), haulage rope fixed establishment is used for fixing the haulage rope at car (201) in-process that falls, haulage rope fixed establishment is including mounting bracket (501), mounting bracket (501) rigid coupling is in the top of car (201), haulage rope runner is located the middle part of mounting bracket (501), mounting bracket (501) symmetry slip is provided with extrusion piece (502) that are used for fixing the haulage rope, the both ends rigid coupling of extrusion piece (502) have first rack (503) respectively, the both sides of mounting bracket (501) are rotated respectively and are connected with spur gear (504), spur gear (504) meshes with two adjacent first racks (503), be provided with drive assembly on two adjacent first connecting plates (4021), drive assembly cooperates with two adjacent spur gears (504), make extrusion piece (502) press from both sides tight haulage rope all the time.

8. A high-speed elevator safety auxiliary protection device according to claim 7, characterized in that: a row of arc-shaped grooves are formed in one side, close to the traction rope, of the mounting frame (501), a row of arc-shaped grooves are formed in one side, close to the traction rope, of the extrusion block (502), the contact area between the mounting frame (501) and the traction rope is increased through the cooperation of the arc-shaped grooves of the extrusion block (502), and friction plates used for increasing friction force are mounted on the inner sides of the arc-shaped grooves of the mounting frame (501) and the extrusion block (502).

9. A high-speed elevator safety auxiliary protection device according to claim 7, characterized in that: the driving assembly comprises two groups of guide rods (505), the two groups of guide rods (505) are fixedly connected to the top of the car (201) respectively, the guide rods (505) are connected with second connecting plates (506) in a sliding mode, the two second connecting plates (506) are located on two sides of the mounting frame (501) respectively, the second connecting plates (506) are fixedly connected with second racks (507), the second racks (507) are meshed with adjacent spur gears (504) mutually, the first connecting plates (4021) are fixedly connected with L-shaped plates (508), and third tension springs (509) are arranged between the L-shaped plates (508) and the second connecting plates (506).