CN214399420U

CN214399420U - Anti-falling safety device for elevator

Info

Publication number: CN214399420U
Application number: CN202023180857.6U
Authority: CN
Inventors: 欧家坤; 欧晓婷; 毕一民; 翟碧荣
Original assignee: Guangdong Crowtor Elevator Group Co ltd
Current assignee: Guangdong Crowtor Elevator Group Co ltd
Priority date: 2020-12-25
Filing date: 2020-12-25
Publication date: 2021-10-15
Anticipated expiration: 2030-12-25

Abstract

The utility model discloses an elevator anti-falling safety device, which relates to the technical field of elevator safety, and comprises an elevator shaft, a traction machine and a chain, wherein the upper end of the elevator shaft is fixedly provided with the traction machine, the right side of the traction machine is rotatably connected with a first rotating shaft, the outer wall of the first rotating shaft is fixedly connected with a first gear, the outer wall of the first gear is rotatably connected with a traction rope, the tail end of the traction rope is fixedly connected with a first fixing ring, the lower end of the first fixing ring is fixedly connected with a car, the left side surface and the right side surface of the car are both welded with fixing blocks, through arranging a gravity plate and a pull rope, the pull rope is connected with the gravity plate and the car, the weight of the gravity plate is greater than the gravity of the car, so that the gravity plate can not fall down, the traction force of the traction machine is greater than the gravity of the gravity plate, the car is driven to rise and fall, when the floor has power failure, the traction machine loses power, and stops the downward falling of the car, the weight of the weight plate prevents the car from falling.

Description

Anti-falling safety device for elevator

Technical Field

The utility model relates to an elevator safety technical field specifically is an elevator anti-falling safety device.

Background

Elevator refers to a permanent transport installation serving a number of specific floors in a building, the cars of which run on at least two rigid tracks perpendicular to the horizontal or inclined at an angle of less than 15 ° to the vertical, also of the stepped type, with tread plates mounted on tracks running continuously, known as escalators or moving walkways, serving fixed lifting installations at the given floor, the vertical lift having a car running between at least two rigid guide rails perpendicular or inclined at an angle of less than 15 °.

The prior art has the following defects: the existing elevator anti-falling safety device generally adopts a speed limiter to limit the speed of the elevator and prevent falling, the protection measure is too single, and when the floor is powered off, the falling speed of a car is too high, the speed limiter is easily broken, and the safety is insufficient.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide an elevator prevents safety device that falls to solve the problem that proposes in the above-mentioned background art.

In order to achieve the above object, the utility model provides a following technical scheme: an anti-falling safety device for an elevator comprises an elevator shaft, a traction machine and a chain, wherein the upper end of the elevator shaft is fixedly provided with the traction machine, the right side of the traction machine is rotatably connected with a first rotating shaft, the outer wall of the first rotating shaft is fixedly connected with a first gear, the outer wall of the first gear is rotatably connected with a traction rope, the tail end of the traction rope is fixedly connected with a first fixing ring, the lower end of the first fixing ring is fixedly connected with a car, the left side surface and the right side surface of the car are welded with fixing blocks, a second rotating shaft is embedded in the fixing blocks, the periphery of the second rotating shaft is rotatably connected with a second gear, the outer wall of the second gear is tightly attached with the chain, the back of the fixing blocks is fixedly provided with a motor, the lower surface of the upper end of the chain is rotatably connected with a third gear, and the upper surface of the lower end of the chain is rotatably connected with a fourth gear, the inside of elevartor shaft rotates and is connected with the fifth gear, the outer wall laminating of fifth gear has the stay cord, the solid fixed ring of terminal fixedly connected with second of stay cord, the solid fixed ring's of lower fixed surface of second lower fixed surface gravity board, the inside rear fixed mounting of elevartor shaft has the bracing piece, the outer wall of bracing piece is seted up flutedly, the back fixed mounting speed limiter of hauler.

Preferably, a hole is formed in the third fixing block, the diameter of the hole is larger than that of the second bolt, and the lower end of the second bolt is tightly attached to the connecting rod.

Preferably, the inner wall of the first fixing block is provided with a groove, the width of the groove is larger than that of the aluminum alloy walking arm, and the upper end of the aluminum alloy walking arm is tightly attached to the lower end of the first bolt.

Preferably, the second fixing block is provided with a groove, and the width of the groove is greater than that of the support.

Preferably, holes are sequentially formed in the back face of the support from top to bottom, and the diameter of each hole is larger than that of the corresponding plug.

Preferably, the periphery of the roller is provided with two grooves, and when the two rollers are attached, the width of the groove is smaller than the diameter of the carbon rod.

Preferably, the inside of the welding gun is provided with a hole, and the diameter of the hole is larger than that of the connecting rod.

Compared with the prior art, the beneficial effects of the utility model are that:

(1) the utility model provides a safety device that falls is prevented to elevator, through setting up chain and motor, the chain passes through the third gear and the fixed car that centers on of fourth gear, the second gear and the chain joint of car outer wall, and the motor starts to drive the second gear rotation, and the second gear rotation drives the chain clockwise rotation, does not hinder reciprocating of car, and when the floor had a power failure, the motor had a power failure shutdown, and the car is fixed and must not be removed between the chain, prevents to fall.

(2) The utility model provides a safety device that falls is prevented to elevator, is through setting up gravity board and stay cord, and gravity board and car are connected to the stay cord, and the weight of gravity board is greater than the gravity of car, makes the car can not descend, and the dynamics of towing of hauler is greater than the gravity of gravity board, drives the car and goes up and down, and the hauler loses electric power when the floor has a power failure, stops pulling of car and falls downwards, and the gravity of gravity board prevents that the car from weighing down.

(3) The utility model provides a safety device that falls is prevented to elevator, is through setting up the speed limiter, and the inside of speed limiter is provided with solitary battery, drives the haulage rope winding rather than being connected when the speed limiter starts, makes the gentle fixed speed of car go up and down, and when the floor had a power failure, solitary battery operation in the speed limiter prevents that the car from falling.

Drawings

Fig. 1 is a schematic view of the overall structure of the present invention;

fig. 2 is a schematic view of the overall side structure of the present invention;

FIG. 3 is a schematic view of a partial structure of the support rod of the present invention;

fig. 4 is an enlarged schematic structural diagram of fig. 1A of the present invention.

In the figure: 1. an elevator shaft; 2. a traction machine; 201. a first rotating shaft; 202. a first gear; 203. a hauling rope; 204. a first retaining ring; 3. a car; 301. a fixed block; 302. a second rotating shaft; 303. a second gear; 304. a chain; 305. a motor; 4. a third gear; 5. a fourth gear; 6. a fifth gear; 601. pulling a rope; 7. a second retaining ring; 701. a gravity plate; 8. a support bar; 801. a groove; 9. a speed limiter.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.

It should be noted that, in the description of the present invention, the terms "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", etc. indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings, which is only for the convenience of description and simplification of the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and thus, should not be construed as limiting the present invention.

Further, it will be appreciated that the dimensions of the various elements shown in the figures are not drawn to scale, for ease of description, and that the thickness or width of some layers may be exaggerated relative to other layers, for example.

It should be noted that like reference numerals and letters refer to like items in the following figures, and thus, once an item is defined or illustrated in one figure, it will not need to be further discussed or illustrated in detail in the description of the following figure.

As shown in fig. 1-4, the utility model provides a technical solution: an elevator anti-falling safety device comprises an elevator shaft 1, a traction machine 2 and chains 304, wherein the traction machine 2 is fixedly installed at the upper end of the elevator shaft 1, a first rotating shaft 201 is rotatably connected to the right side of the traction machine 2, a first gear 202 is fixedly connected to the outer wall of the first rotating shaft 201, a traction rope 203 is rotatably connected to the outer wall of the first gear 202, a first fixing ring 204 is fixedly connected to the tail end of the traction rope 203, a car 3 is fixedly connected to the lower end of the first fixing ring 204, fixing blocks 301 are welded to the left side surface and the right side surface of the car 3, a second rotating shaft 302 is embedded in the fixing blocks 301, a second gear 303 is rotatably connected to the periphery of the second rotating shaft 302, the outer wall of the second gear 303 is tightly attached to the chains 304, a motor 305 is fixedly installed on the back surface of the fixing blocks 301, a third gear 4 is rotatably connected to the lower surface of the chains 304, and a fourth gear 5 is rotatably connected to the upper surface of the lower ends of the chains 304, the inside of elevartor shaft 1 rotates and is connected with fifth gear 6, and the outer wall laminating of fifth gear 6 has stay cord 601, the solid fixed ring 7 of terminal fixedly connected with second of stay cord 601, the lower fixed surface fixedly connected with gravity board 701 of the solid fixed ring 7 of second, and the inside rear fixed mounting of elevartor shaft 1 has bracing piece 8, and the outer wall of bracing piece 8 is seted up flutedly 801, and the back fixed mounting of hauler 2 has speed limiter 9.

Referring to fig. 1 and 2, the chain 304 is oval, a plurality of clamping grooves are formed in the outer wall of the chain 304, the clamping grooves are attached to the outer walls of the second gear 303, the third gear 4 and the fourth gear 5, two fixing rings are arranged at the upper end of the car 3, the outer walls of the fixing rings are fixedly connected with a pull rope 601, and one end, far away from the first fixing ring 204, of the pull rope 203 is connected with a gear on the outer wall of the speed limiter 9; through setting up chain 304 and motor 305, chain 304 is fixed around car 3 through third gear 4 and fourth gear 5, the second gear 303 and the chain 304 joint of car 3 outer wall, motor 305 starts to drive second gear 303 and rotates, second gear 303 rotates and drives chain 304 clockwise, do not hinder car 3's reciprocating, when the floor has a power failure, motor 305 has a power failure and stops the operation, car 3 fixes and must not remove between chain 304, prevent to fall, through setting up speed limiter 9, the inside of speed limiter 9 is provided with solitary battery, it coils rather than the haulage rope 203 of being connected to drive when speed limiter 9 starts, make the gentle fixed speed of car 3 go up and down, when the floor has a power failure, solitary battery operation in the speed limiter 9, prevent that car 3 from falling.

Referring to fig. 3 and 4, the width of the groove 801 is greater than the width of the left and right sides of the gravity plate 701, the left and right sides of the gravity plate 701 are embedded in the groove 801, one motor 305 is provided, the other end of the rotating shaft connected with the motor 305 is connected with the second gear 303, the weight of the gravity plate 701 is greater than that of the car 3, and the force of the traction rope 203 dragged by the traction machine 2 is greater than that of the gravity plate 701; through setting up gravity board 701 and stay cord 601, stay cord 601 connects gravity board 701 and car 3, and the weight of gravity board 701 is greater than the gravity of car 3, makes it can not descend, and the power of towing of hauler 2 is greater than the gravity of gravity board 701, drives car 3 and goes up and down, and hauler 2 loses electric power when the floor has a power failure, stops the traction of car 3 and falls downwards, and the gravity of gravity board 701 prevents that car 3 from weighing down.

The working principle is as follows: when the device is used, firstly, the traction machine 2 is started through a wire electrical connection point, the traction machine 2 is started to drive the first rotating shaft 201 to rotate, the first rotating shaft 201 rotates to drive the first gear 202 to rotate, the first gear 202 rotates to drive the traction rope 203 to rotate along the gear on the outer wall of the speed limiter 9, when the speed limiter 9 electrically connected through a wire is started, the traction rope 203 connected with the speed limiter is driven to wind, the lift car 3 is slowly and fixedly lifted, when the floor is powered off, the single battery in the speed limiter 9 operates to prevent the lift car 3 from falling, when the lift car 3 is lifted, the motor 305 electrically connected through a wire is started, when the motor 305 is started, the rotating shaft drives the rotating shaft on the outer wall to rotate, the rotating shaft rotates to drive the second gear 303 to rotate, the second gear 303 rotates to drive the chain 304 to rotate clockwise, the up-and-down movement of the lift car 3 is not hindered, the chain 304 is fixed around the lift car 3 through the third gear 4 and the fourth gear 5 when the floor is powered off, when the floor has a power failure and the battery power in the speed limiter 9 is used up, the car 3 descends to pull the gravity plate 701 at the other end of the pull rope 601, and the weight of the gravity plate 701 is greater than that of the car 3, so that the car 3 cannot descend.

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 fall prevention safety device comprises an elevator shaft (1), a traction machine (2) and a chain (304), and is characterized in that: the elevator hoistway structure is characterized in that a traction machine (2) is fixedly mounted at the upper end of an elevator hoistway (1), a first rotating shaft (201) is connected to the right side of the traction machine (2) in a rotating mode, a first gear (202) is fixedly connected to the outer wall of the first rotating shaft (201), a traction rope (203) is connected to the outer wall of the first gear (202) in a rotating mode, a first fixing ring (204) is fixedly connected to the tail end of the traction rope (203), a car (3) is fixedly connected to the lower end of the first fixing ring (204), fixing blocks (301) are welded to the left side face and the right side face of the car (3), a second rotating shaft (302) is arranged in an embedded mode, a second gear (303) is connected to the periphery of the second rotating shaft (302) in a rotating mode, a chain (304) is tightly attached to the outer wall of the second gear (303), and a motor (305) is fixedly mounted to the back face of the fixing blocks (301), the utility model discloses a tractor, including chain (304), elevator shaft (1), the upper end lower surface of chain (304) rotates and is connected with third gear (4), the lower extreme upper surface of chain (304) rotates and is connected with fourth gear (5), the inside of elevator shaft (1) rotates and is connected with fifth gear (6), the outer wall laminating of fifth gear (6) has stay cord (601), the solid fixed ring of terminal fixedly connected with second (7) of stay cord (601), the lower fixed surface of the solid fixed ring of second (7) is connected with gravity board (701), the inside rear fixed mounting of elevator shaft (1) has bracing piece (8), the outer wall of bracing piece (8) is seted up fluted (801), the back fixed mounting speed limiter (9) of hauler (2).

2. An elevator fall protection safety device as claimed in claim 1, wherein: the chain (304) is oval, a plurality of clamping grooves are formed in the outer wall of the chain (304), and the clamping grooves are attached to the outer walls of the second gear (303), the third gear (4) and the fourth gear (5).

3. An elevator fall protection safety device as claimed in claim 1, wherein: the upper end of car (3) is provided with two solid fixed rings altogether, and solid fixed ring's outer wall and stay cord (601) fixed connection.

4. An elevator fall protection safety device as claimed in claim 1, wherein: one end of the traction rope (203), which is far away from the first fixing ring (204), is connected with a gear on the outer wall of the speed limiter (9).

5. An elevator fall protection safety device as claimed in claim 1, wherein: the width of the groove (801) is larger than the width of the left side and the right side of the gravity plate (701), and the left side and the right side of the gravity plate (701) are embedded into the groove (801).

6. An elevator fall protection safety device as claimed in claim 1, wherein: the motor (305) is provided with one motor, and the other end of the rotating shaft connected with the motor (305) is connected with the second gear (303).

7. An elevator fall protection safety device as claimed in claim 1, wherein: the weight of the gravity plate (701) is greater than that of the lift car (3), and the force of the traction rope (203) dragged by the traction machine (2) is greater than that of the gravity plate (701).