CN113353758B

CN113353758B - Anti-drop's elevator car structure

Info

Publication number: CN113353758B
Application number: CN202110545227.4A
Authority: CN
Inventors: 李铮
Original assignee: Chongqing Huachuang Elevator Parts Co ltd
Current assignee: Chongqing Huachuang Elevator Parts Co ltd
Priority date: 2021-05-19
Filing date: 2021-05-19
Publication date: 2022-07-01
Anticipated expiration: 2041-05-19
Also published as: CN113353758A

Abstract

The invention discloses an anti-falling elevator car structure, which comprises an integral car structure, wherein the integral car structure comprises a passenger elevator main car and a car limiting guide rail, a car dragging frame is fixed on the outer side of the passenger elevator main car, the car limiting guide rail is arranged on the outer side of the car dragging frame in parallel, a dragging bottom hanging box is fixed at the top end of the car dragging frame, anti-falling plate mounting grooves are uniformly formed in the left side and the right side of the car dragging frame, anti-falling plates are arranged on the two sides of the car dragging frame, a protective stretcher plate matched with the anti-falling plates is arranged on the inner side of the car limiting guide rail, when a dragging steel wire rope is broken, a protective lantern ring falls off, so that the safe steel wire rope naturally descends, the anti-falling plates which lose the dragging of the safe steel wire rope are opened under the action of the anti-falling plate torsion spring and are supported on the protective stretcher plate, and the integral car structure is supported and prevented from falling, the practicality is stronger, has improved the security of elevator in the use.

Description

Anti-drop's elevator car structure

Technical Field

The invention belongs to the technical field of elevators, and particularly relates to an anti-falling elevator car structure.

Background

An elevator is a permanent transport device serving a number of specific floors in a building, the cars of which travel in at least two rigid tracks perpendicular to the horizontal or inclined at an angle of less than 15 ° to the vertical. There are also steps, where the tread plates are mounted on a track for continuous operation, commonly known as escalators or moving walkways. A fixed elevator apparatus serving a predetermined floor. The vertical lift elevator has a car that runs between at least two vertical rows of rigid guide rails or guide rails with an angle of inclination of less than 15 °. The size and the structural form of the car are convenient for passengers to access or load and unload goods. It is customary to use elevators as a generic term for vertical transport means in buildings, irrespective of their drive mode.

The reasons for the overspeed phenomenon of an elevator are generally: the brake spring is loosened, and the brake shoe and the brake wheel are overheated due to friction of the brake shoe and the brake wheel, so that the brake capacity is reduced, and the brake cannot be effectively closed due to the faults of brake locking, brake arm breakage, shaft pin breakage and the like; mechanical parts such as a main shaft, a bearing, a gear, a worm and the like of the traction machine are broken or damaged, and the traction force is seriously reduced; the traction condition is damaged, and the traction sheave and the steel wire rope slip; the overspeed preventing device for elevator is generally elevator overspeed governor, which is formed into a closed loop around rope wheel and rope expanding wheel in the pit by means of steel cable, and has rope head fastened to the cage and connected to the safety tongs via mechanical link rod. If the lift car is overspeed, the speed limiter acts immediately to trigger the rope clamping device to clamp the steel wire rope. When the car descends, the operation of the steel wire rope pulling safety tongs enables the safety tongs to generate friction force on the guide rail, the car is rapidly braked on the guide rail, and the car stops moving.

Disclosure of Invention

The invention aims to provide an anti-falling elevator car structure to solve the problems in the prior art.

In order to achieve the purpose, the invention provides the following technical scheme: an anti-drop elevator car structure comprises a car integral structure, the car integral structure comprises a passenger elevator main compartment and a car limiting guide rail, a car dragging frame is fixed on the outer side of the passenger elevator main compartment, the car limiting guide rail is arranged on the outer side of the car dragging frame in parallel, a dragging bottom hanging box is fixed at the top end of the car dragging frame, anti-drop plate mounting grooves are uniformly formed in the left side and the right side of the car dragging frame, bottom dragging wheels are symmetrically arranged in the dragging bottom hanging box, the dragging bottom hanging box and the bottom dragging wheels are fixedly connected through bearings, a dragging steel wire rope is wound on the outer side of each bottom dragging wheel, dragging frame top penetrating grooves are symmetrically formed in the top end of the car dragging frame, anti-drop plates are arranged in the anti-drop plate mounting grooves, anti-drop plate rotating shafts penetrate through the anti-drop plates and the anti-drop plate mounting grooves, and safety rope limiting grooves are formed in the top ends of the anti-drop plates, the outer side of the falling-preventing plate rotating shaft is nested with a falling-preventing plate torsion spring, a safety steel wire rope penetrates through the position, corresponding to the safety rope limiting groove, of the falling-preventing plate, the top end of the safety steel wire rope is provided with a protective lantern ring, the surface of the safety steel wire rope is evenly provided with a rope knot, the protective lantern ring is nested in the outer side of the traction steel wire rope, and one end of the protective lantern ring is nested with an anti-friction pulley.

Preferably, the inner side of the car limiting guide rail is uniformly provided with protective stretcher plates, the distance between the adjacent protective stretcher plates is consistent with the distance between the adjacent anti-falling plates, and the protective stretcher plates and the car limiting guide rail are of an integrated structure.

Preferably, anti-falling heads are symmetrically arranged at one end of the inner side of the safety rope limiting groove, and the minimum distance between the two anti-falling heads is smaller than the section diameter of the safety steel wire rope.

Preferably, the distance between the adjacent knots is consistent with the distance between the adjacent anti-falling plates.

Preferably, the falling prevention plate and the falling prevention plate mounting groove are fixedly connected in a limiting manner through a falling prevention plate rotating shaft.

Preferably, two car limit guide rail parallel arrangement, and two the inside protection stretcher horizontal height that sets up of car limit guide rail is unanimous.

Compared with the prior art, the invention has the beneficial effects that: the anti-falling plates are arranged on the two sides of the car traction frame, the protective carrying plates matched with the anti-falling plates are arranged on the inner sides of the car limiting guide rails, when the traction steel wire rope is broken, the protective sleeve rings can be caused to fall off, the safety steel wire rope naturally descends, the anti-falling plates which are not dragged by the safety steel wire rope are opened under the action of the anti-falling plate torsion springs and are carried on the protective carrying plates, the function of supporting the whole car overall structure to prevent falling is achieved, the practicability is higher, and the safety of an elevator in the using process is improved.

Drawings

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

FIG. 2 is a schematic perspective view of a main compartment of a passenger elevator according to the present invention;

FIG. 3 is an enlarged schematic view of the area B of FIG. 2 according to the present invention;

FIG. 4 is a schematic view of the structure of area A of FIG. 2 according to the present invention;

fig. 5 is a schematic view of a partial perspective structure of a car limiting guide rail of the present invention;

FIG. 6 is a schematic view of a partial structure of a connection mode of a safety steel wire rope and a protective lantern ring according to the present invention;

FIG. 7 is a schematic perspective view of the anti-fall plate of the present invention;

FIG. 8 is an enlarged view of the area C of FIG. 7 according to the present invention;

FIG. 9 is a schematic perspective view of the manner in which the safety steel wire rope controls the fall prevention plate according to the present invention;

fig. 10 is a partial front view structural schematic diagram of the safety steel wire rope of the present invention;

in the figure: 1. the integral structure of the lift car; 101. a passenger elevator main compartment; 102. a car traction frame; 103. dragging a bottom hanging box; 104. a car limit guide rail; 141. a protective stretcher plate; 105. dragging the steel wire rope; 106. a bottom traction sheave; 107. a protective collar; 108. a fall-preventing plate mounting groove; 109. an anti-falling plate; 110. a falling prevention plate rotating shaft; 111. a falling prevention plate torsion spring; 112. the traction frame is pushed through the groove; 113. a safety wire rope; 114. an anti-friction pulley; 115. a safety rope limiting groove; 151. anti-falling and head turning; 116. and (6) knotting.

Detailed Description

The technical solution in the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present invention.

Referring to fig. 1-10, the present invention provides the following technical solutions: an anti-drop elevator car structure comprises a car integral structure 1, the car integral structure 1 comprises a passenger elevator main compartment 101 and a car limiting guide rail 104, a car dragging frame 102 is fixed on the outer side of the passenger elevator main compartment 101, the car limiting guide rail 104 is arranged on the outer side of the car dragging frame 102 in parallel, a dragging bottom hanging box 103 is fixed on the top end of the car dragging frame 102, anti-drop plate mounting grooves 108 are uniformly arranged on the left side and the right side of the car dragging frame 102, bottom dragging wheels 106 are symmetrically arranged in the dragging bottom hanging box 103, the dragging bottom hanging box 103 and the bottom dragging wheels 106 are fixedly connected through bearings, a dragging steel wire rope 105 is wound on the outer side of the bottom dragging wheel 106, a dragging frame top penetrating groove 112 is symmetrically arranged on the top end of the car dragging frame 102, an anti-drop plate 109 is arranged in the anti-drop plate mounting groove 108, an anti-drop plate rotating shaft 110 penetrates through the anti-drop plate 109 and the anti-drop plate mounting grooves 108, and prevent falling the top of board 109 and seted up safety rope spacing groove 115, prevent falling the outside nestification of board pivot 110 and have the board torsional spring 111 that prevents falling, prevent falling the board 109 and run through safety wire rope 113 corresponding safety rope spacing groove 115's position, safety wire rope 113's top is provided with the protection lantern ring 107, and safety wire rope 113's surface evenly is provided with knot 116, and the protection lantern ring 107 nestification has antifriction pulley 114 in the outside of towing wire rope 105, and the one end nestification of protection lantern ring 107.

In order to better support each anti-falling plate 109 in case of emergency, in this embodiment, it is preferable that the guard bars 141 are uniformly arranged on the inner side of the car position limiting guide rail 104, the distance between adjacent guard bars 141 is the same as the distance between adjacent anti-falling plates 109, and the guard bars 141 and the car position limiting guide rail 104 are of an integrated structure.

In order to prevent the safety wire rope 113 from easily separating from the safety rope limiting groove 115, in this embodiment, preferably, anti-falling heads 151 are symmetrically disposed at one end of the inner side of the safety rope limiting groove 115, and the minimum distance between the two anti-falling heads 151 is smaller than the diameter of the tangent plane of the safety wire rope 113.

In order to enable the safety wire 113 to control the state of the fall prevention plate 109, in the present embodiment, it is preferable that the distance between the adjacent knots 116 is identical to the distance between the adjacent fall prevention plates 109.

In order to enable the anti-falling plate 109 and the anti-falling plate installation groove 108 to rotate relatively, in this embodiment, preferably, the anti-falling plate 109 and the anti-falling plate installation groove 108 are fixedly connected in a limited manner by the anti-falling plate rotating shaft 110.

In order to better protect the main car 101 of the passenger elevator, in this embodiment, preferably, the two car limiting guide rails 104 are arranged in parallel, the horizontal heights of the protecting stretcher boards 141 arranged inside the two car limiting guide rails 104 are consistent, and the distance between the two parallel opposite car limiting guide rails 104 is 1-3 cm greater than the width of the car traction frame 102.

In order to better protect the main car 101 of the passenger elevator, in this embodiment, preferably, when the falling prevention plate 109 loses the dragging of the safety steel wire 113, under the action of the falling prevention plate torsion spring 111, the falling prevention plate 109 forms an angle of 90 degrees with the car dragging frame; when the anti-falling plate 109 is dragged by the safety steel wire rope 113, the anti-falling plate 109 is parallel to the car dragging frame by 180 degrees.

The working principle and the using process of the invention are as follows: after the elevator car integral structure 1 is installed, firstly, the installation fixing and the safety protection of the elevator car integral structure 1 are checked, then the elevator car integral structure can be used, when an emergency occurs and the traction steel wire rope 105 is broken, the protective lantern ring 107 and the safety steel wire rope 113 lose traction force, so that the anti-falling plate 109 is separated from the tension force of the safety steel wire rope 113, and quickly bounces to be vertical to the car traction frame 102 by 90 degrees under the action of the anti-falling plate torsion spring 111, and is supported on the protective supporting plate 141 under the action of the integral structure 1 falling, and the integral structure 1 of the elevator car is prevented from further falling.

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. The utility model provides an anti-drop's elevator car structure, includes car overall structure (1), its characterized in that: the integral cage structure (1) comprises a main cage (101) of the passenger elevator and a cage limiting guide rail (104), a cage dragging frame (102) is fixed on the outer side of the main cage (101) of the passenger elevator, the cage limiting guide rail (104) is arranged on the outer side of the cage dragging frame (102) in parallel, a bottom dragging box (103) is fixed on the top end of the cage dragging frame (102), anti-falling plate installing grooves (108) are uniformly formed in the left side and the right side of the cage dragging frame (102), bottom dragging wheels (106) are symmetrically arranged in the bottom dragging box (103), the bottom dragging box (103) and the bottom dragging wheels (106) are fixedly connected through bearings, a dragging steel wire rope (105) is wound on the outer side of the bottom dragging wheel (106), dragging frame top penetrating grooves (112) are symmetrically formed in the top end of the cage dragging frame (102), and anti-falling plates (109) are arranged in the anti-falling plate installing grooves (108), prevent weighing down board (109) and prevent penetrating between board mounting groove (108) and have and prevent falling board pivot (110), and prevent falling the top of board (109) and seted up safety rope spacing groove (115), the outside nestification of board pivot (110) of preventing falling has prevents falling board torsional spring (111), prevent falling the position that board (109) corresponds safety rope spacing groove (115) and penetrate and have safety wire rope (113), the top of safety wire rope (113) is provided with the protection lantern ring (107), and the surface of safety wire rope (113) evenly is provided with knot (116), the protection lantern ring (107) nestification is in the outside of haulage wire rope (105), and the one end nestification of protection lantern ring (107) has antifriction pulley (114).

2. A drop-preventing elevator car structure according to claim 1, wherein: the inboard of car limit guide (104) evenly is provided with protection load board (141), and is adjacent interval between protection load board (141) is with adjacent prevent weighing down the interval between the board (109) unanimously, and protection load board (141) and car limit guide (104) formula structure as an organic whole.

3. A drop-preventing elevator car structure according to claim 1, wherein: the anti-falling device is characterized in that anti-falling heads (151) are symmetrically arranged at one end of the inner side of the safety rope limiting groove (115), and the minimum distance between the anti-falling heads (151) is smaller than the section diameter of the safety steel wire rope (113).

4. A drop-preventing elevator car structure according to claim 1, characterized in that: the distance between the adjacent knots (116) is consistent with the distance between the adjacent anti-falling plates (109).

5. A drop-preventing elevator car structure according to claim 1, wherein: the anti-falling plate (109) and the anti-falling plate mounting groove (108) are in limit fixed connection through an anti-falling plate rotating shaft (110).

6. A drop-preventing elevator car structure according to claim 2, wherein: the two car limit guide rails (104) are arranged in parallel, and the horizontal heights of the protection stretcher plates (141) arranged in the two car limit guide rails (104) are consistent.