CN111661733A

CN111661733A - Elevator car

Info

Publication number: CN111661733A
Application number: CN202010450257.2A
Authority: CN
Inventors: 刘超越; 齐梦轲
Original assignee: Individual
Current assignee: Individual
Priority date: 2020-05-25
Filing date: 2020-05-25
Publication date: 2020-09-15

Abstract

The invention discloses an elevator car, belonging to the technical field of elevators; the invention comprises the following steps: a car body; a steel cable, the lower part of which is fixed on the car body; the two guide rails are arranged on two sides of the car body; the car body falling speed reducing device comprises a speed reducing guide mechanism and a braking mechanism, wherein the speed reducing guide mechanism is arranged between a car body and guide rails on two sides and is fixed on the outer wall of the car body; the safety car is reasonable in structure, ingenious in design, high in safety factor and suitable for popularization and use, and the life safety of personnel in the car main body can be guaranteed to the greatest extent.

Description

Elevator car

Technical Field

The invention relates to the technical field of elevators, in particular to an elevator car.

Background

The car is a box-shaped space used by elevators to carry and transport people and materials. The car is generally composed of main components such as a car bottom, a car wall, a car roof, a car door and the like. Is a body part of an elevator for carrying passengers or cargo and other loads. Suspended ceilings are typically of specular stainless steel material; the car bottom is a PVC marble floor with the thickness of 2mm or a marble parquet with the thickness of 20 mm.

Although the probability of accidents occurring in elevators is very low, a serious safety accident may occur in case of an accident, especially in underdeveloped areas or old districts or corrosive environments, resulting in too fast elevator wear and a probabilistic risk of breakage of the steel ropes.

When the steel rope is broken or other faults occur in the elevator, the elevator car can freely fall to move, and the descending speed is faster and faster, so that the larger the kinetic energy of the collision between the elevator car and the ground is, the larger the loss is; present guiding mechanism that slows down also has a lot, and through the retrieval, chinese patent application number 201520689286.9 proposes a novel intelligent elevator well based on elevator car protection, specifically has: when the elevator is in danger of falling, the hydraulic cylinder pushes and extrudes the lateral side supporting frame of the lateral car so as to extrude the car pulley, so that the car stops under pressure, the stopping effect is better, the fear brought to people by emergency stop is relieved, passengers can climb out of a well or wait for rescue from the emergency ladder, the hydraulic rod is used for extrusion, so that the friction between the hydraulic rod and the car is increased, and the car stops falling;

to this end, the invention provides an elevator car.

Disclosure of Invention

The invention aims to provide an elevator car, which can reduce the falling speed of a car body to the maximum extent by matching with a braking mechanism by means of a deceleration guide mechanism under the unexpected condition that a steel cable is accidentally broken, can ensure the life safety of personnel in the car body to the maximum extent, has high safety coefficient and can solve the problems in the background technology.

In order to achieve the purpose, the invention provides the following technical scheme: an elevator car comprising:

a car body;

the lower part of the steel cable is fixed on the car main body and used for hoisting the car main body;

the two guide rails are arranged on two sides of the car body and used for providing a guiding effect when the car body is lifted;

the deceleration guide mechanism is arranged between the car body and the guide rails on the two sides, is fixed on the outer wall of the car body and is used for reducing the falling speed of the car body when the car body freely falls;

the braking mechanism is arranged below the speed reduction guide mechanism and reduces the dropping speed of the car main body after the car main body drops; and

and when the steel cable is in a loose state, the auxiliary steel cable does not generate pulling force on the speed reduction guide mechanism and the braking mechanism, and the speed reduction guide mechanism and the braking mechanism simultaneously slow down the descending speed of the car body.

Preferably, a top plate is fixed to the top of the car body, the lower end of the steel cable is fixed to the top of the top plate, and the top plate is used for improving the overall strength of the car body.

Preferably, the telescopic rod is further included, the telescopic rod is fixed on two sides of the top surface of the top plate, and locking screws used for adjusting the height of the telescopic rod are arranged on the telescopic rod.

Preferably, the steel wire rope guide device further comprises first guide wheels, wherein the first guide wheels are mounted on two sides of the top plate and used for assisting the guide sliding of the steel wire rope.

Preferably, a first rigid rope and a second rigid rope are fixed at the lower end of the auxiliary steel wire rope, wherein the first rigid rope is connected with the braking mechanism, and the second rigid rope is connected with the deceleration guiding mechanism.

Preferably, the brake mechanism comprises a mounting seat, a metal rod fixed at the bottom of the mounting seat, a swinging rod hinged at the lower end of the metal rod, a first high-elasticity spring fixed at one side of the swinging rod far away from the guide rail, and a friction block fixed at one end of the swinging rod near the guide rail, wherein the upper end of the first high-elasticity spring is fixed at the bottom of the mounting seat, the lower end of a first rigid rope is fixed on the swinging rod between the lower end of the metal rod and the first high-elasticity spring, when the steel cable is in a working state, the lower end of the first rigid rope pulls the end of the swinging rod far away from the guide rail to upwards and compress the first high-elasticity spring, at the moment, the friction block is not in contact with the guide rail, when the steel cable is in a breaking or loosening state, the steel cable does not generate pulling force on the first rigid rope, at the moment, under the pressing of the first, thereby can realize friction braking's effect, the use of cooperation speed reduction leading wheel can play the process of slowing down gradually to the car main part of free fall, thereby avoids car main part and ground violent collision to cause very big accident.

Preferably, the deceleration guide mechanism comprises two side plates fixed at the bottom of the mounting seat and a deceleration guide wheel rotationally matched between the two side plates, the deceleration guide wheel comprises a central shaft, a main sector block fixed at one side of the central shaft, a plurality of auxiliary sector blocks hinged together end to end and baffles fixed at the front end and the rear end of the central shaft, the top of the main sector block is detachably hinged with a first auxiliary sector block, the bottom of the main sector block is non-detachably hinged with a last auxiliary sector block, a cylindrical structure is formed when the main sector block, the plurality of auxiliary sector blocks and the central shaft are tightly attached, when the steel cable is in a working state, the deceleration guide wheel at the moment has a common guide wheel function, namely when the car body ascends, the deceleration guide wheel rolls upwards on the guide rail, the rotation direction of the deceleration guide wheel is anticlockwise, when the car body descends, the speed reduction leading wheel rolls downwards on the guide rail, and the rotation direction of the speed reduction leading wheel is clockwise, so that the speed reduction leading wheel can play a role in assisting the car body to stably ascend or descend when the car body normally runs, and the speed of the car body 1 cannot be influenced.

Preferably, the outer walls of the main sector block and the secondary sector block are both provided with a receiving groove, the inner wall of the receiving groove is fixed with a second high-elasticity spring, the upper end of the second high-elasticity spring is fixed with a speed reducing block, the bottom of the speed reducing block is fixed with a third rigid rope, the bottom of the receiving groove is provided with a rope hole, the outer wall of the central shaft is provided with first rope grooves at intervals, the center of a circle at one end of the central shaft is provided with second rope grooves, the first rope grooves are communicated with the second rope grooves, the third rigid rope movably penetrates through the rope hole on the main sector block or the secondary sector block and the first rope grooves and the second rope grooves on the central shaft and then is fixed on a circular joint, the lower end of the second rigid rope is fixed with a ball joint base, the circular joint ball is in the ball joint, when the steel cable is in a working state, the second rigid rope pulls the speed reducing block to enable the speed reducing block to be in the receiving groove, and the speed reducing block does not contact with, at the moment, the second high-elasticity spring is in a compressed state, and the lift car body ascends or descends to drive the speed reduction guide wheel to rotate, because one end of the third rigid ropes is fixed on the circular joint and the third rigid ropes are twisted, the circular joint can be driven to rotate in the ball joint seat, the third rigid ropes are not always wound, the problem of winding of the third rigid ropes is avoided, when the steel cable is broken or in a loose state, the second rigid rope can not generate tension on the third rigid rope, under the elastic force effect of the second high-elasticity spring, one end of the speed reducing block is pushed out of the accommodating groove, the speed reducing block is in contact with the guide rail and is abutted against the guide rail at the moment, the friction force between the speed reducing block and the guide rail is increased, the speed reducing effect is achieved, and the car body is prevented from being unexpected to a greater extent by matching with a braking mechanism.

Preferably, a fourth rigid rope is installed on the speed reducing block in the main sector block, a first installation groove is formed in the top of the main sector block, a first auxiliary sector block is rotatably matched in the first installation groove, a protruding portion is arranged on one side, close to the first installation groove, of the auxiliary sector block, a rotating groove is formed in the middle of the protruding portion, a rotating shaft is arranged in the rotating groove, a rotating shaft groove is formed in the bottom of the first installation groove, the lower end of the rotating shaft is located in the rotating shaft groove, a third rope groove is formed in the lower end of the rotating shaft groove, the fourth rigid rope penetrates through the third rope groove and the rotating shaft groove and then is fixed to the bottom of the rotating shaft, a telescopic spring is fixed to the bottom of the rotating shaft and presses the rotating shaft to enable the rotating shaft to be located in the rotating groove, when the steel cable is in a working state, the speed reducing block in the main sector block is located in the accommodating groove and cannot move the, at this moment, the speed reduction block moves outwards to drive the fourth rigid rope to move outwards, so that the rotating shaft is pulled to move downwards, the rotating shaft is separated from the rotating groove, the speed reduction guide wheel rotates clockwise at a high speed to drive the auxiliary fan-shaped block to throw away and attach to the guide rail, rolling friction is converted into sliding friction, friction force can be increased, and then the descending speed of the car main body can be accelerated.

Preferably, the outer wall of the speed reducing block in the main sector block is rotatably provided with a wire collecting roller, the fourth rigid rope penetrates through an L-shaped hole formed in the speed reducing block and then is fixed on the wire collecting roller, the main sector block and the auxiliary sector block are made of magnetic steel, the guide rail is made of a material which can be adsorbed by a magnet and can be preferably but not limited to a metal iron material, saw-shaped teeth are arranged on the outer wall of the speed reducing block on the auxiliary sector block, further, when the speed reducing block is bounced out and the rotating shaft does not fall for a sufficient distance, the rotating shaft does not break away from the rotating groove, so that when the speed reducing guide wheel rotates at a high speed, the wire collecting roller is in contact with the guide rail to generate rolling friction, the wire collecting roller rotates, the rotating wire collecting roller can wind the fourth rigid rope on the wire collecting roller, and further can collect the fourth rigid rope, and the rotating shaft can fall for a sufficient distance, guarantee main sector and vice sector and can separate, it is further, can set up the magnetism direction of adjacent main sector and vice sector to be the same, utilize like polarity to repel each other can accelerate the separation of main sector and vice sector, and main sector and vice sector adopt magnetism steel, can be firm adsorb on the guide rail, and then increase and the guide rail between the frictional force.

Compared with the prior art, the invention has the beneficial effects that:

1. the elevator car has the advantages that through the arrangement of the speed reduction guide mechanism, the elevator car not only has the guide function and ensures the normal operation of the car body, but also is used for reducing the falling speed of the car body when the car body falls freely, so that the safety performance of the car body is improved;

2. according to the elevator car, due to the arrangement of the braking mechanism, the falling speed of the car body is reduced after the car body falls, and the car body falling freely can be gradually decelerated by matching with the use of the deceleration guide wheel, so that the great accident caused by violent collision of the car body with the ground is avoided;

3. the safety car is reasonable in structure, ingenious in design, high in safety factor and suitable for popularization and use, and the life safety of personnel in the car main body can be guaranteed to the greatest extent.

Drawings

FIG. 1 is a schematic structural view of the present invention;

FIG. 2 is a schematic view of the position of the deceleration guide mechanism of the present invention;

FIG. 3 is a cross-sectional view of the deceleration guide wheel of the present invention;

FIG. 4 is an enlarged view of a portion A of FIG. 3;

FIG. 5 is a schematic view of a third rigid cord passing through the central shaft and being cooperatively coupled with the second rigid cord;

FIG. 6 is a cross-sectional view taken along line B-B of FIG. 4;

fig. 7 is a schematic structural view of the deceleration guiding wheel after being unfolded.

In the figure: 1 car body, 2 guide rails, 3 top plate, 4 telescopic rod, 5 locking screw, 6 first guide wheel, 7 auxiliary steel wire rope, 8 steel wire rope, 9 mounting seat, 10 speed reducing guide wheel, 101 central shaft, 102 baffle plate, 103 main sector block, 104 auxiliary sector block, 105 accommodating groove, 106 second high-elasticity spring, 107 third rigid rope, 108 rope hole, 109 speed reducing block, 111 saw tooth, 112 third rope groove, 113L-shaped hole, 114 wire accommodating roller, 115 rotating part groove, 116 rotating part, 117 rotating shaft, 118 rotating shaft, 119 fourth rigid rope, 120 first mounting groove, 121 rotating groove, 122 telescopic spring, 123 rotating shaft groove, 124 bulge, 11 metal rod, 12 swinging rod, 13 side plate, 14 first high-elasticity spring, 15 friction block, 16 circular joint, 17 ball joint seat, 18 second guide wheel, 19 air bag groove and 20 air bag.

Detailed Description

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.

Referring to fig. 1 to 7, the present invention provides a technical solution:

in embodiments of the present invention, the terms "first" and "second" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance. The terms "plurality," "plurality," and "a number" refer to two or more, unless expressly defined otherwise.

The method comprises the following steps:

a car body 1; the car body 1 is also provided with a car door;

a wire rope 8, the lower part of the wire rope 8 is fixed on the car body 1 and is used for hoisting the car body 1; the upper end of the steel cable 8 is connected with a dragging motor, and the dragging motor drives the lift car body 1 to ascend or descend when running;

the two guide rails 2 are arranged on two sides of the car body 1 and used for providing a guiding function when the car body 1 ascends and descends; specifically, the number of the guide rails 2 includes but is not limited to two, and a plurality of vertical guide rails 2 can be arranged on one side surface of the car body 1, so that the stability of the car body 1 during lifting is enhanced, and a plurality of speed reduction guide mechanisms 10 are conveniently arranged between the guide rails 2 and the car body 1, so that the safety of the elevator is enhanced;

the deceleration guide mechanism is arranged between the car body 1 and the guide rails 2 on the two sides, is fixed on the outer wall of the car body 1 and is used for reducing the dropping speed of the car body 1 when the car body 1 freely falls; specifically, multiple groups of speed reduction guide mechanisms can be arranged between the car body 1 and the guide rails 2 on the two sides, so that the safety coefficient is improved, and the speed reduction guide mechanisms are made of high-strength metal materials but not limited;

the braking mechanism is arranged below the speed reduction guide mechanism and reduces the dropping speed of the car main body 1 after the car main body 1 drops; and

the auxiliary steel wire rope 7 is fixed on the steel wire rope 8, when the steel wire rope 8 is in a working state, the auxiliary steel wire rope 7 pulls the speed reduction guide mechanism and the brake mechanism, so that the speed reduction guide mechanism and the brake mechanism do not interfere with the normal operation of the car main body 1, when the steel wire rope 8 is in a loose state, the auxiliary steel wire rope 7 does not generate pulling force on the speed reduction guide mechanism and the brake mechanism, and at the moment, the speed reduction guide mechanism and the brake mechanism together slow down the descending speed of the car main body 1.

Roof 3 is fixed with at 1 top of car main part, the lower extreme of cable wire 8 is fixed in the top of roof 3, roof 3 is used for improving 1 bulk strength of car main part, when the foreign matter appears in the top of car main part 1 and drops, can effectively improve the top intensity of car main part 1, avoid the inside that the foreign matter got into car main part 1 to cause danger to inside personnel, equally, the bottom of car main part 1 is provided with bottom plate 3, can improve the intensity of 1 bottom of car main part, guarantee 1 inside personnel's of car main part safety.

Still including telescopic link 4, telescopic link 4 is fixed in the top surface both sides of roof 3, and is provided with locking screw 5 that is used for behind the telescopic link 4 height-adjusting on the telescopic link 4, and the telescopic link is height-adjustable's rail guard, security when can improve the maintenance personal and overhaul.

As shown in fig. 1 and 2, the elevator car further comprises first guide wheels 6, the first guide wheels 6 are installed on two sides of the top plate 3, the first guide wheels 6 are used for guiding the auxiliary steel wire ropes 7 to slide, specifically, the first guide wheels 6 are provided with a plurality of guide wheels along the paths of the auxiliary steel wire ropes 7, friction between the auxiliary steel wire ropes 7 and the outer wall of the car body 1 is avoided, and the service life of the auxiliary steel wire ropes 7 is prolonged.

Referring to fig. 2, fig. 2 is a schematic position diagram of a deceleration guiding mechanism in an elevator car according to an embodiment of the present invention, a first rigid rope 701 and a second rigid rope 702 are fixed to a lower end of an auxiliary steel wire rope 7, where the first rigid rope 701 is connected to a braking mechanism, and the second rigid rope 702 is connected to the deceleration guiding mechanism.

Referring to fig. 2, fig. 2 is a schematic position diagram of a deceleration guiding mechanism in an elevator car according to an embodiment of the present invention, in which the braking mechanism includes a mounting seat 9, a metal rod 11 fixed to the bottom of the mounting seat 9, a swing rod 12 hinged to the lower end of the metal rod 11, a first high-elasticity spring 14 fixed to a side of the swing rod 12 away from the guide rail 2, and a friction block 15 fixed to a side of the swing rod 12 close to the guide rail 2, an upper end of the first high-elasticity spring 14 is fixed to the bottom of the mounting seat 9, a lower end of a first rigid rope 701 is fixed to the swing rod 12 between the lower end of the metal rod 11 and the first high-elasticity spring 14, when the steel cable 8 is in an operating state, the lower end of the first rigid rope 701 pulls the end of the swing rod 12 away from the guide rail 2 upward and compresses the first high-elasticity spring 14, when the friction block 15 is not, that is, the steel cable 8 does not generate a pulling force on the first rigid rope 701, and at this time, under the pressing of the first high-elasticity spring 14, one end of the oscillating rod 12 away from the guide rail 2 moves downwards, so that the friction block 15 on the oscillating rod 12 is pressed against the guide rail 2, thereby realizing the function of friction braking, and in cooperation with the use of the deceleration guide wheel 10, a gradual deceleration process can be performed on the car body 1 of a free-falling body, thereby avoiding a great accident caused by the violent collision between the car body 1 and the ground.

Referring to fig. 3, fig. 3 is a cross-sectional view of a deceleration guide wheel in an elevator car according to an embodiment of the present invention, the deceleration guide mechanism includes two side plates 13 fixed to the bottom of a mounting base 9, and a deceleration guide wheel 10 rotatably fitted between the two side plates 13, the deceleration guide wheel 10 includes a central shaft 101, a main sector block 103 fixed to one side of the central shaft 101, a plurality of sub sector blocks 104 hinged to each other end to end, and a baffle plate 102 fixed to the front and rear ends of the central shaft 101, the top of the main sector block 103 is detachably hinged to a first sub sector block 104, the bottom of the main sector block 103 is non-detachably hinged to a last sub sector block 104, when the main sector block 103, the plurality of sub sector blocks 104, and the central shaft 101 are tightly fitted to form a cylindrical structure, and when a steel cable 8 is in a working state, the deceleration guide wheel 10 functions as a common guide wheel, that is, when the car body 1 ascends, the decelerating guide wheels 10 roll upward on the guide rails 2, at this time, the rotating direction of the decelerating guide wheels 10 is counterclockwise (counterclockwise determined according to the position of the decelerating guide wheels 10 in fig. 2), when the car body 1 descends, the decelerating guide wheels 10 roll downward on the guide rails 2, at this time, the rotating direction of the decelerating guide wheels 10 is clockwise (clockwise determined according to the position of the decelerating guide wheels 10 in fig. 2), and in summary, when the car body 1 normally operates, the decelerating guide wheels 10 can play a role of assisting the car body 1 to stably ascend or descend, and do not affect the speed of the car body 1.

Referring to fig. 3, 4 and 5, fig. 3 is a cross-sectional view of a deceleration guide pulley in an elevator car according to an embodiment of the present invention, fig. 4 is a partially enlarged view of a portion a in fig. 3 in the elevator car according to the embodiment of the present invention, fig. 5 is a schematic view illustrating that a third rigid rope penetrates through a central shaft and is connected with a second rigid rope in the elevator car according to the embodiment of the present invention, an accommodating groove 105 is formed on outer walls of a main sector block 103 and an auxiliary sector block 104, a second highly elastic spring 106 is fixed on an inner wall of the accommodating groove 105, a deceleration block 109 is fixed on an upper end of the second highly elastic spring 106, a third rigid rope 107 is fixed on a bottom of the deceleration block 109, a rope hole 108 is formed at the bottom of the accommodating groove 105, first rope grooves 1012 are formed on the outer wall of the central shaft 101 at intervals, a center of a circle 1011 is formed at one end of the central shaft 101, and the first rope grooves 1012 are communicated with the second rope grooves 1011, the third rigid rope 107 passes through the rope hole 108 on the main sector block 103 or the auxiliary sector block 104 and the first rope groove 1012 and the second rope groove 1011 on the central shaft 101 and then is fixed on the circular joint 16, the bottom of the mounting seat 9 is also installed on the second guide wheel 18, the second rigid rope 702 is in sliding fit on the second guide wheel 18, the lower end of the second rigid rope 702 is fixed with the ball seat 17, the circular joint 16 is in ball joint in the ball seat 17, when the steel rope 8 is in the working state, the second rigid rope 702 pulls the speed reducing block 109 to make the speed reducing block 109 in the receiving groove 105, at this time, the speed reducing block 109 does not contact with the guide rail 2, at this time, the second high-elasticity spring 106 is in the compression state, and the car body 1 ascends or descends to drive the speed reducing guide wheel 10 to rotate, because one end of the plurality of third rigid ropes 107 is fixed on the circular joint 16, the plurality of third rigid ropes 107 twists, at this time, the circular joint 16 is driven to rotate in the ball seat, when the steel cable 8 is broken or in a loose state, the second rigid rope 702 cannot generate pulling force on the third rigid rope 107, under the action of the elastic force of the second high-elasticity spring 106, one end of the speed reducing block 109 is pushed out of the accommodating groove 105, the speed reducing block 109 is in contact with the guide rail 2 and abuts against the guide rail 2, the friction force between the speed reducing block 109 and the guide rail 2 is increased, the speed reducing effect is achieved, and the car body 1 is prevented from being accidentally caused to a greater extent by matching with a braking mechanism.

Referring to fig. 6, fig. 6 is a sectional view of the elevator car along the direction B-B in fig. 4 according to an embodiment of the present invention, a fourth rigid rope 119 is installed on a deceleration block 109 located in a main sector block 103, a first installation groove 120 is disposed at the top of the main sector block 103, a first secondary sector block 104 is rotatably fitted in the first installation groove 120, a protrusion 124 is disposed at a side of the secondary sector block 104 close to the first installation groove 120, a rotation groove 121 is disposed at the middle of the protrusion 124, a rotation shaft 118 is disposed in the rotation groove 121, a rotation shaft groove 123 is disposed at the bottom of the first installation groove 120, the lower end of the rotation shaft 118 is located in the rotation shaft groove 123, a third rope groove 112 is disposed at the lower end of the rotation shaft groove 123, the fourth rigid rope 119 penetrates through the third rope groove 112 and the rotation shaft groove 123 and is fixed at the bottom of the rotation shaft 118, a telescopic spring 122 is fixed at the bottom of the rotation shaft 118, the telescopic spring 122 presses the, when the steel cable 8 is in a working state, at this time, the speed reduction block 109 in the main sector block 103 is in the storage groove, and does not pull the rotating shaft 118 to move downward, and when the steel cable 8 is in a broken or loose state, the speed reduction block 109 moves outward at this time, and drives the fourth rigid rope 119 to move outward, and further pulls the rotating shaft 118 to move downward, the rotating shaft 118 is separated from the rotating groove 121, and the speed reduction guide wheel 10 rotates clockwise at a high speed (clockwise determined according to the position of the speed reduction guide wheel 10 in fig. 2), and drives the auxiliary sector block 104 to throw away and attach to the guide rail 2, and rolling friction is converted into sliding friction, so that friction can be increased, and further the descending speed of the car body 1 can be accelerated.

Referring to fig. 4, fig. 4 is a partial enlarged view of a position a in an elevator car according to an embodiment of the present invention, a wire take-up roller 114 is rotatably mounted on an outer wall of a speed reduction block 109 in a main sector block 103, a fourth rigid rope 119 is fixed to the wire take-up roller 114 after passing through an L-shaped hole 113 formed in the speed reduction block 109, the main sector block 103 and a secondary sector block 104 are both made of magnetic steel, a guide rail 2 is made of a material that can be attracted by a magnet, preferably but not limited to a metallic iron material, saw teeth 111 are formed on an outer wall of the speed reduction block 109 formed in the secondary sector block 104, further, when the speed reduction block 109 is ejected out and the rotating shaft 118 is not lowered enough, the rotating shaft 118 is not separated from a rotating groove 121, so that when the speed reduction guide wheel 10 rotates at a high speed, the wire take-up roller 114 makes contact with the guide rail 2 to generate rolling friction, the wire take-up roller 114 rotates, and the rotating wire take-up roller 114 can wind the fourth, furthermore, the fourth rigid rope 119 can be taken up, so that the rotating shaft 118 can be ensured to descend for a sufficient distance, the main sector block 103 and the auxiliary sector block 104 can be separated, further, the magnetic directions of the adjacent main sector block 103 and the adjacent auxiliary sector block 104 can be set to be the same, the separation of the main sector block 103 and the auxiliary sector block 104 can be accelerated by utilizing the same polarity repulsion, the main sector block 103 and the auxiliary sector block 104 are made of magnetic steel materials, and can be firmly adsorbed on the guide rail 2, so that the friction force between the main sector block 103 and the guide rail 2 is increased;

as shown in fig. 4, the adjacent sub-sectors 104 are connected by the rotation axis 117 in the rotation fit, the bottom of the main sector 103 is connected with the last sub-sector 104 by the rotation axis 117 in the rotation fit, specifically, the bottom of the main sector 103 is provided with the rotation portion 116, the top of the last sub-sector 104 is provided with the rotation portion groove 115, the rotation axis 117 movably penetrates through the rotation portion 116 and is fixed in the rotation portion groove 115, the rotation fit structure between the adjacent sub-sectors 104 is the same, that is, the rotation fit between the adjacent sub-sectors 104, the bottom of the main sector 103 and the last sub-sector 104 is not disconnected, so that when the top of the main sector 103 is disconnected from the first sub-sector 104 when the cable 8 on the car body 1 is broken, the main sector 103 and the plurality of sub-sectors 104 can form the structure shown in fig. 7, wherein the metal rod 11, the metal rod, the braking mechanisms such as the swing rod 12 and the like are not positioned on the same plane with the plurality of secondary fan-shaped blocks 104, so that the expansion of the plurality of secondary fan-shaped blocks 104 is prevented from being influenced, the main fan-shaped block 103 and the speed reducing blocks 109 on the plurality of secondary fan-shaped blocks 104 can be fully contacted with the guide rail 2, and the descending speed of the car body 1 is further reduced more rapidly.

As shown in fig. 7, an airbag groove 19 is correspondingly formed at a position of the car body 1 close to the deceleration guide wheel 10, an airbag 20 is installed in the airbag groove 19, the airbag 20 is controlled by a controller in the prior art, and a trigger switch of the controller is arranged on the deceleration guide wheel 10, specifically but not limited to be arranged on the outer wall of the central shaft 101, the controller switch can be triggered after the plurality of sub-fan-shaped blocks 104 are deployed, so that the controller controls the airbag 20 to be opened, the opening time is controlled after the plurality of sub-fan-shaped blocks 104 are completely deployed, the airbag 20 is deployed and then is pressed against the inner wall of the plurality of sub-fan-shaped blocks 104, the plurality of sub-fan-shaped blocks 104 are more closely attached to the side wall of the guide rail 2, the plurality of sub-fan-shaped blocks 104 can be fully contacted with the guide rail 2, and the descending speed of the car body 1 is further.

To sum up, in use, when the wire rope 8 is in the working state, the deceleration guide pulley 10 at this time functions as a normal guide pulley, that is, when the car body 1 is raised, the deceleration guide pulley 10 rolls upward on the guide rail 2, the rotation direction of the deceleration guide pulley 10 is counterclockwise (counterclockwise determined according to the position of the deceleration guide pulley 10 in fig. 2), when the car body 1 is lowered, the deceleration guide pulley 10 rolls downward on the guide rail 2, the rotation direction of the deceleration guide pulley 10 is clockwise (clockwise determined according to the position of the deceleration guide pulley 10 in fig. 2), when the car body 1 is normally operated, the deceleration guide pulley 10 only plays a role of promoting the car body 1 to rise or fall without affecting the speed of the car body 1, when the wire rope 8 is in the working state, the second rigid rope 702 pulls the deceleration block 109 to make the deceleration block 109 in the storage groove 105, at this time, the deceleration block 109 is not in contact with the guide rail 2, at this time, the second highly elastic spring 106 is in a compressed state, and the car body 1 ascends or descends to drive the deceleration guide wheel 10 to rotate, because one end of the third rigid ropes 107 is fixed on the circular joint 16, the third rigid ropes 107 are twisted, at this time, the circular joint 16 is driven to rotate in the ball seat 17, and the third rigid ropes 107 are not wound all the time, thereby avoiding the problem of winding of the third rigid ropes 107, when the steel cable 8 is broken or in a loose state, the second rigid rope 702 cannot generate a pulling force on the third rigid ropes 107, under the elastic force of the second highly elastic spring 106, one end of the deceleration block 109 is pushed out of the accommodating groove 105, at this time, the deceleration block 109 is in contact with the guide rail 2 and abuts against the guide rail 2, so as to increase the friction force between the deceleration block 109 and the guide rail 2, thereby achieving the deceleration function, when the wire receiving roller 114 is in contact with the guide rail 2, the wire receiving roller 114 rolls, and then the fourth rigid rope 119 can be received, so that the rotating shaft 118 can be ensured to descend for a sufficient distance, the main sector block 103 and the auxiliary sector block 104 can be ensured to be separated, further, the magnetic directions of the adjacent main sector block 103 and the adjacent auxiliary sector block 104 can be set to be the same, the separation of the main sector block 103 and the auxiliary sector block 104 can be accelerated by utilizing the repulsion of the same poles, the main sector block 103 and the auxiliary sector block 104 are made of magnetic materials and can be firmly adsorbed on the guide rail 2, the main sector block 103 and the auxiliary sector block 104 are simultaneously in contact with the guide rail 2, the friction force between the main sector block 103 and the guide rail 2 is further improved, and the braking performance between the car main body 1 and the guide rail 2 can be further improved, the car body 1 is prevented from descending at a high speed;

the speed reduction guide mechanism and the braking mechanism are mutually matched, so that the safety of the car main body 1 when the car main body 1 accidentally drops can be improved, the car main body 1 is prevented from colliding with the ground at a high speed, the electronic controller is not arranged in the car braking device, all the mechanical triggering components are mechanical triggering components, when the steel cable 8 on the car main body 1 suddenly breaks, the speed reduction guide mechanism and the braking mechanism can be automatically triggered to brake, the speed reduction guide mechanism and the braking mechanism are mutually matched, the car main body 1 is prevented from dropping at a high speed, the safety is high, and once an accident occurs, the car main body 1 can be automatically and actively decelerated, and the safety is very high.

Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.

Claims

1. An elevator car, comprising:

a car body (1);

a steel cable (8), the lower part of the steel cable (8) is fixed on the car main body (1) and is used for hoisting the car main body (1);

the two guide rails (2) are arranged on two sides of the car body (1) and used for providing a guiding function when the car body (1) is lifted;

the deceleration guide mechanism is arranged between the car body (1) and the guide rails (2) on two sides, is fixed on the outer wall of the car body (1), and is used for reducing the dropping speed of the car body (1) when the car body (1) freely falls;

the braking mechanism is arranged below the speed reduction guide mechanism and reduces the dropping speed of the car main body (1) after the car main body (1) drops; and

auxiliary steel wire rope (7), auxiliary steel wire rope (7) upper portion is fixed in on cable wire (8), and when cable wire (8) were in operating condition, auxiliary steel wire rope (7) stimulate guiding mechanism and arrestment mechanism that slows down, makes guiding mechanism and arrestment mechanism not intervene the normal operating of car main part (1) that slows down, and when cable wire (8) were in the lax state, auxiliary steel wire rope (7) do not produce pulling force to guiding mechanism and arrestment mechanism that slows down, and guiding mechanism and arrestment mechanism slow down the falling speed of car main part (1) jointly this moment.

2. An elevator car as claimed in claim 1, characterized in that: the car main part (1) top is fixed with roof (3), the lower extreme of cable wire (8) is fixed in the top of roof (3), and roof (3) are used for improving car main part (1) bulk strength.

3. An elevator car as claimed in claim 2, characterized in that: the telescopic roof is characterized by further comprising telescopic rods (4), wherein the telescopic rods (4) are fixed on two sides of the top surface of the roof (3), and the telescopic rods (4) are provided with locking screws (5) used for adjusting the height of the telescopic rods (4).

4. An elevator car as claimed in any one of claims 1 to 3, characterized in that: the steel wire rope guide device is characterized by further comprising first guide wheels (6), wherein the first guide wheels (6) are installed on two sides of the top plate (3), and the first guide wheels (6) are used for assisting the steel wire ropes (7) to slide in a guide mode.

5. An elevator car as claimed in claim 1, characterized in that: and a first rigid rope (701) and a second rigid rope (702) are fixed at the lower end of the auxiliary steel wire rope (7), wherein the first rigid rope (701) is connected with the braking mechanism, and the second rigid rope (702) is connected with the deceleration guiding mechanism.

6. An elevator car as claimed in claim 5, characterized in that: the brake mechanism comprises a mounting seat (9), a metal rod (11) fixed at the bottom of the mounting seat (9), a swinging rod (12) hinged at the lower end of the metal rod (11), a first high-elasticity spring (14) fixed at one side of the swinging rod (12) far away from the guide rail (2), and a friction block (15) fixed at one end of the swinging rod (12) close to the guide rail (2), the upper end of the first high-elasticity spring (14) is fixed at the bottom of the mounting seat (9), the lower end of the first rigid rope (701) is fixed on a swinging rod (12) between the lower end of the metal rod (11) and a first high-elasticity spring (14), when the steel cable (8) is in a working state, the lower end of the first rigid rope (701) pulls one end of the swinging rod (12) far away from the guide rail (2) upwards and compresses the first high-elasticity spring (14), and the friction block (15) is not contacted with the guide rail (2).

7. An elevator car as claimed in claim 6, characterized in that: the speed reduction guide mechanism comprises two side plates (13) fixed to the bottom of the mounting seat (9), a speed reduction guide wheel (10) in rotating fit between the two side plates (13), the speed reduction guide wheel (10) comprises a central shaft (101), a main sector block (103) fixed to one side of the central shaft (101), a plurality of auxiliary sector blocks (104) which are hinged together end to end, and baffles (102) fixed to the front end and the rear end of the central shaft (101), the top of the main sector block (103) is detachably hinged with a first auxiliary sector block (104), the bottom of the main sector block (103) is non-detachably hinged with a last auxiliary sector block (104), and a cylindrical structure is formed when the main sector block (103), the plurality of auxiliary sector blocks (104) and the central shaft (101) are tightly attached.

8. An elevator car as claimed in claim 7, characterized in that: the outer walls of the main fan-shaped block (103) and the auxiliary fan-shaped block (104) are respectively provided with a containing groove (105), the inner wall of the containing groove (105) is fixed with a second high-elasticity spring (106), the upper end of the second high-elasticity spring (106) is fixed with a speed reducing block (109), the bottom of the speed reducing block (109) is fixed with a third rigid rope (107), the bottom of the containing groove (105) is provided with a rope hole (108), the outer wall of the central shaft (101) is provided with first rope grooves (1012) at intervals, the center of the circle of one end of the central shaft (101) is provided with a second rope groove (1011), the first rope groove (1012) is communicated with the second rope groove (1011), the third rigid rope (107) movably penetrates through the rope hole (108) on the main fan-shaped block (103) or the auxiliary fan-shaped block (104) and the first rope groove (1012) and the second rope groove (1011) on the central shaft (101) and then is fixed on the circular joint (16), the lower end of the second rigid rope (702) is fixed with a ball joint seat (17), and the round joint (16) is ball-jointed in the ball joint seat (17).

9. An elevator car as claimed in claim 8, characterized in that: a fourth rigid rope (119) is arranged on a speed reducing block (109) in the main sector block (103), a first mounting groove (120) is formed in the top of the main sector block (103), a first auxiliary sector block (104) is matched in the first mounting groove (120) in a rotating mode, a protruding portion (124) is arranged on one side, close to the first mounting groove (120), of the auxiliary sector block (104), a rotating groove (121) is formed in the middle of the protruding portion (124), a rotating shaft (118) is arranged in the rotating groove (121), a rotating shaft groove (123) is formed in the bottom of the first mounting groove (120), the lower end of the rotating shaft (118) is located in the rotating shaft groove (123), a third rope groove (112) is formed in the lower end of the rotating shaft groove (123), the fourth rigid rope (119) penetrates through the third rope groove (112) and the rotating shaft groove (123) and then is fixed to the bottom of the rotating shaft (118), and a telescopic spring (122) is fixed to the bottom, the telescopic spring (122) presses the rotating shaft (118) to enable the rotating shaft (118) to be positioned in the rotating groove (121).

10. An elevator car as claimed in claim 9, characterized in that: the wire winding roller (114) is rotatably mounted on the outer wall of the speed reducing block (109) in the main fan-shaped block (103), the fourth rigid rope (119) penetrates through an L-shaped hole (113) formed in the speed reducing block (109) and then is fixed on the wire winding roller (114), the main fan-shaped block (103) and the auxiliary fan-shaped block (104) are made of magnetic steel, the guide rail (2) is made of materials capable of being adsorbed by magnets, and saw-shaped teeth (111) are arranged on the outer wall of the speed reducing block (109) on the auxiliary fan-shaped block (104).