CN111559684B

CN111559684B - Novel rope loosening prevention device for elevator

Info

Publication number: CN111559684B
Application number: CN202010533948.9A
Authority: CN
Inventors: 崔伟; 顾佳金; 葛晓敏
Original assignee: GLoong Elevator Co ltd
Current assignee: GLoong Elevator Co ltd
Priority date: 2020-06-12
Filing date: 2020-06-12
Publication date: 2023-05-05
Anticipated expiration: 2040-06-12
Also published as: CN111559684A

Abstract

The invention discloses a novel elevator anti-loosening rope device which comprises a first support, a second support, an action plate, a switch and a switch beating plate, wherein the first support and the second support are arranged on an upper beam, one end of the action plate is movably connected with the second support, the other end of the action plate is provided with the switch beating plate, the switch beating plate is connected with the first support through a tension spring, the switch is arranged on the first support on one side of the switch beating plate, and a rope head combination arranged on the rope head plate is arranged above the action plate. The invention has the advantages that 1. The structure is simpler, the installation is more convenient, and only one tension spring pretightening force needs to be adjusted; 2. no matter which steel wire rope is loosened, the action plate can be caused to descend, and the failure risk is avoided; 3. by the lever principle, the distance of the loose rope is enlarged, and the reaction is more sensitive.

Description

Novel rope loosening prevention device for elevator

Technical Field

The invention relates to an elevator safety device, in particular to a novel elevator anti-loosening rope device.

Background

At present, the use and the demand of the elevator are gradually increased year by year, the phenomenon of rope breakage of the elevator steel wire rope is not common, but the phenomenon of abnormal elongation of the steel wire rope is always existed, the steel wire rope is excessively elongated to cause uneven stress of the steel wire rope, the traction force is insufficient, and finally, the elevator is caused to have a safety accident. To super high-speed elevator, the patent number 2010102667469 patent invents an elevator locking rope device, including fag end, rotating component, switch mount and rotating component support frame, rotating component includes the pivot and connects two connecting plates at the pivot both ends, rotating component support frame includes fixed bolster and elastic support column, elastic support column is located between fixed bolster and the switch beating plate, rotating component articulates with fixed bolster fixed mounting on the fag end, and this rotating component supports on elastic support column, switch mount hangs fixedly connected on the fag end, and installs safety switch on the switch mount. The device is complex to install, and tension of the compression springs at two ends needs to be adjusted simultaneously. In addition, when the non-switch side wire rope is not hard up, there is the risk that the switch side beat the board and rise on the contrary, can not touch safety switch this moment, reaches the guard action.

Disclosure of Invention

The invention provides a novel elevator anti-loosening rope device, which aims to solve the problems that an elevator anti-loosening rope device in the prior art is complex to install, the tension of springs at two ends is required to be adjusted simultaneously, and when a non-switch side steel wire rope is loosened, the technology has failure risk.

The technical scheme adopted by the invention is as follows:

the utility model provides a novel elevator locking rope device, includes first support, second support, action board, switch and beats the board, first support and second support are installed on the roof beam, the one end and the second support swing joint of action board, the switch is beaten the board is installed to the other end of action board, the switch is beaten the board and is passed through the extension spring and is connected with first support, the switch is installed on the first support of switch beating board one side, the top of action board is equipped with the fag end combination of installing on the fag end board. When one of the steel wire ropes is loosened due to strand breakage or other reasons, the rope is sagged and contacted with the action plate of the anti-loosening rope device under the action force of the rope head combined pressure spring, and then the action plate rotates downwards along the pin shaft, so that the switch is driven to act downwards, the switch is triggered, the safety loop is disconnected, and the elevator stops normal operation.

Further, the action plate is movably connected with the second bracket through a pin shaft, and the pin shaft is locked by a cotter pin. The action plate rotates through the pin shaft.

Further, the rope end plate is positioned in the clamping groove of the upper beam, the rope end combination is orderly arranged on the rope end plate, the pressure spring of the rope end combination is positioned below the rope end plate and above the action plate, and a gap is reserved between the bottom of the rope end combination and the action plate. Under normal conditions, the tensioning force of each steel wire rope is adjusted to be in a standard range, and meanwhile, the length of the rope head combination is basically equal, and a certain distance is kept between the rope head combination and the anti-loosening rope device.

Further, the bottom of the second bracket is higher than the horizontal plane of the action plate to form a rotation space.

Further, the switch beating plate is bent to form a first connecting plate, a second connecting plate and a third connecting plate, the first connecting plate is vertical and is connected with the tension spring, the second connecting plate is inclined and is positioned above the switch, and the third connecting plate is horizontal and is fixedly connected with the action plate through a screw.

Further, the front side and the rear side of the first support and the second support are respectively provided with a long round hole, and the first support and the second support are connected with the upper beam through bolts penetrating through the long round holes. The first bracket and the second bracket can be adjusted in the oblong hole according to the condition of the site.

Further, the upper portion of extension spring is connected with the connecting piece, be equipped with the slotted hole on the first support, the bolt is fixed the connecting piece in the slotted hole. The elasticity of the tension spring can be adjusted through the oblong hole. The action plate of the rope loosening prevention device keeps horizontal under the pretightening force of the tension spring, and the switch beating plate is not contacted with the switch. Under the action of the pretightening force of the tension spring, the misoperation of the action plate can be prevented in the high-speed running process of the elevator.

Further, pull rings are arranged on the upper portion and the lower portion of the tension spring, the pull rings on the upper portion of the tension spring penetrate through holes of the connecting pieces, and the pull rings on the lower portion of the tension spring penetrate through the first connecting plate. The pull ring is convenient to connect, and the extension spring is convenient to replace after the extension spring loses effort.

The invention has the following beneficial effects: 1. the structure is simpler, the installation is more convenient, and only one tension spring pretightening force needs to be adjusted; 2. no matter which steel wire rope is loosened, the action plate can be caused to descend, and the failure risk is avoided; 3. by the lever principle, the distance of the loose rope is enlarged, and the reaction is more sensitive.

Drawings

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

FIG. 2 is a front view of FIG. 1;

FIG. 3 is a left side view of FIG. 1;

FIG. 4 is a diagram of the present invention;

FIG. 5 is a schematic view of the structure of the present invention;

fig. 6 is a front view of fig. 5;

FIG. 7 is a top view of FIG. 5;

FIG. 8 is a left side view of FIG. 5;

fig. 9 is a partial enlarged view of a in fig. 8.

In the figure, 1 is an upper beam, 2 is a rope end combination, 3 is a first bracket, 4 is a second bracket, 5 is a rope end plate, 6 is an action plate, 7 is a tension spring, 8 is a switch, 900 is a switch plate, 910 is a first connecting plate, 920 is a second connecting plate, 930 is a third connecting plate, 10 is a connecting piece, 11 is a pin shaft, 12 is a pull ring, F1 is a rope loosening stress point, F2 is a switch contact point, and P is a fulcrum.

Detailed Description

The invention will now be described in detail with reference to the drawings and examples.

Examples: as shown in fig. 1 to 9, a novel elevator locking rope device comprises a first bracket 3, a second bracket 4, an action plate 6, a switch 8 and a switch beating plate 900, wherein the first bracket 3 and the second bracket 4 are installed on an upper beam 1, one end of the action plate 6 is movably connected with the second bracket 4, the switch beating plate 900 is installed at the other end of the action plate 6, the switch beating plate 900 is connected with the first bracket 3 through a tension spring 7, the switch 8 is installed on the first bracket 3 at one side of the switch beating plate 900, and a rope end combination 2 installed on a rope end plate 5 is arranged above the action plate 6.

The operation process of the elevator rope loosening prevention device is as follows: because one end of the action plate 6 is movably connected with the second bracket 4 through the pin 11, the action plate 6 rotates along the pin 11 by taking the pin 11 as a fulcrum. The other end of the action plate 6 is provided with a switch board 900, when the wire ropes have no problem under normal conditions, the length of the rope head combination 2 is basically equal, the tensioning force of each wire rope is regulated to have a safe distance from the action plate, the action plate 6 is kept horizontal through a tension spring 7, the switch 8 is arranged on one side of the switch board 900, and the switch board 900 is not contacted with the switch 8 when the action plate 6 is horizontal; when the wire rope in the rope end combination 2 is broken or loosened, the wire rope sags to contact the action plate 6 under the action of the pressure spring of the rope end combination 2, the action plate 6 is stressed to rotate downwards along the pin shaft 11, namely the fulcrum P, and as the first bracket 3 is connected with the action plate 6 through the tension spring 7 and the switch plate 900, the switch plate 900 moves downwards to trigger the switch 8 while the action plate 6 rotates downwards, then the safety circuit is disconnected, and the elevator stops normal operation.

Claims

1. The novel elevator anti-loosening rope device is characterized by comprising a first support (3), a second support (4), an action plate (6), a switch (8) and a switch beating plate (900), wherein the first support (3) and the second support (4) are arranged on an upper beam (1), one end of the action plate (6) is movably connected with the second support (4), the switch beating plate (900) is arranged at the other end of the action plate (6), the switch beating plate (900) is connected with the first support (3) through a tension spring (7), the switch (8) is arranged on the first support (3) at one side of the switch beating plate (900), and a rope end combination (2) arranged on a rope end plate (5) is arranged above the action plate (6); the action plate (6) is movably connected with the second bracket (4) through a pin roll (11), and the pin roll (11) is locked by a cotter pin; the bottom of the second bracket (4) is higher than the horizontal plane of the action plate (6) to form a rotation space.

2. The novel elevator anti-loosening rope device according to claim 1, wherein the rope end plate (5) is located in a clamping groove of the upper beam (1), the rope end combination (2) is orderly arranged on the rope end plate (5), a pressure spring of the rope end combination (2) is located below the rope end plate (5) and above the action plate (6), and a gap is formed between the bottom of the rope end combination (2) and the action plate (6).

3. The novel elevator locking rope device according to claim 1, wherein the switch beating plate (900) is bent to form a first connecting plate (910), a second connecting plate (920) and a third connecting plate (930), the first connecting plate (910) is vertical and is connected with the tension spring (7), the second connecting plate (920) is inclined and is positioned above the switch (8), and the third connecting plate (930) is horizontal and is fixedly connected with the action plate (6) through screws.

4. The novel elevator locking rope device according to claim 1, wherein oblong holes are formed in the front side and the rear side of the first support (3) and the second support (4), and the first support (3) and the second support (4) are connected with the upper beam (1) through the oblong holes through bolts.

5. A new elevator anti-loose rope device according to claim 3, characterized in that the upper part of the tension spring (7) is connected with a connecting piece (10), the first bracket (3) is provided with a slotted hole, and the connecting piece (10) is fixed in the slotted hole by a bolt.

6. The novel elevator locking rope device according to claim 5, wherein pull rings (12) are arranged on the upper portion and the lower portion of the tension spring (7), the pull rings (12) on the upper portion of the tension spring (7) penetrate through holes of the connecting piece (10), and the pull rings (12) on the lower portion of the tension spring (7) penetrate through the first connecting plate (910).