CN218950731U

CN218950731U - Construction elevator haulage rope prevents protection device that breaks

Info

Publication number: CN218950731U
Application number: CN202223335115.5U
Authority: CN
Inventors: 许江宁; 王彦涛; 范辰星; 李东升; 褚鹏; 王林; 杜猛; 王伟; 张琪
Original assignee: Ningxia Tongyu Elevator Manufacturing Development Co ltd
Current assignee: Ningxia Tongyu Elevator Manufacturing Development Co ltd
Priority date: 2022-12-12
Filing date: 2022-12-12
Publication date: 2023-05-02
Anticipated expiration: 2032-12-12

Abstract

The utility model discloses a breakage-proof protection device for a traction rope of a construction hoist, which consists of a limit switch, a fixed plate, a mounting plate and a collision plate, wherein the limit switch is connected with a safety loop and an audible and visual alarm. When the construction elevator normally operates, the spring on the rope head assembly is in a compressed state, and the collision plate is slightly close to the limit switch; when at least one of the steel wire ropes is broken, the spring on the rope head combination is stretched, so that the rope head combination impacts the collision plate to enable the limit switch to act, the elevator is further stopped, and meanwhile the audible and visual alarm gives an alarm.

Description

Construction elevator haulage rope prevents protection device that breaks

Technical Field

The utility model relates to an accessory of a building construction lifter, in particular to a breakage-proof protection device for a traction rope of the construction lifter.

Background

The construction lifter is a man-carrying and cargo-carrying construction machine which is frequently used in a building, is mainly used for the internal and external construction and decoration of a high-rise building, and is usually used together with a tower crane on a construction site.

In recent years, with the continuous development of the building industry, requirements on construction safety, environmental protection, construction period, quality and the like are higher and higher, the traditional externally hung construction lifter cannot meet the requirements of modern building construction enterprises due to the characteristics of poor safety, low operation efficiency, environmental protection hidden danger, small application range and the like, and according to the current situation of engineering application in the current building industry, the self-hoistway structure of a building is fully utilized, and the traction type indoor construction lifter with high safety, high reliability, high efficiency, low carbon and environmental protection installed in an elevator hoistway can be adopted.

The traction type construction lifter runs vertically in the air by means of the pulling force of a plurality of traction ropes, and once the traction ropes are broken, casualties, equipment damage and other consequences can be possibly caused; the speed limiter is arranged on the general construction elevator, when the descending speed of the car exceeds a certain value, the speed limiter drives the safety tongs to act, the car is clamped on the guide rail, and sometimes a certain traction rope is broken or loosened, although the strength of the traction rope can be designed, the safety coefficient is designed to exceed the safety standard, however, the breaking or loosening of the certain traction rope can possibly cause serious consequences, and the car must not be affected.

Aiming at the technical problem, the utility model provides a construction elevator traction rope breakage-proof protection device, which can control the elevator to stop running and send out an alarm at the same time after at least one traction steel wire rope is broken.

Disclosure of Invention

The utility model aims to solve the technical problem of providing a protection safety device which has a simple structure and reliable work and can detect the breakage of any traction rope.

The specific technical scheme of the utility model is as follows: the anti-breakage protection device for the traction rope of the construction elevator comprises a limit switch, a fixing plate, a mounting plate and a collision plate, wherein the fixing plate is fixed on a rope head plate, a vertical mounting plate is fixed on one surface of the fixing plate, which is opposite to the rope head combination, and the limit switch is fixed on the mounting plate; the top of the fixed plate is provided with a striking plate, the striking plate can make seesaw rotation by taking the top of the fixed plate as a supporting point, one end of the striking plate is positioned above the rope head combination, the other end of the striking plate is positioned above the limit switch, and the striking plate is slightly close to the limit switch; the limit switch is connected with the safety loop and the audible and visual alarm.

The rope end combination comprises a rope end rod, a spring and a nut, wherein the lower surface of the rope end rod is connected with an elevator traction rope, and the spring and the nut are sleeved on the rope end rod after the rope end rod passes through a hole in a rope end plate; when the construction elevator normally operates, the spring on the rope head assembly is in a compressed state, and the collision plate is slightly close to the limit switch; when at least one traction rope is broken, the spring on the rope head combination is stretched, so that the rope head combination impacts the collision plate to enable the limit switch to act, the elevator is further stopped, and meanwhile the audible and visual alarm gives an alarm.

Further, the collision plate is connected to the fixed plate through a hinge and can rotate around the fixed plate.

Furthermore, the striking plate is located the straight hook of limit switch's one end bending U type, is gently next limit switch, and when striking plate runs into the striking, the response is more swift sensitive.

Furthermore, the collision plate is positioned at one end above the rope end combination, and the distance from the rope end combination is smaller than the elongation of a breaking spring of the steel wire traction rope.

Further, the length of one end of the striking plate above the limit switch is shorter than that of one end of the striking plate above the rope end combination, and the limit switch can react faster when one end of the striking plate rope end is struck.

The utility model has the technical effects that: the device can detect the fracture or the loosening of arbitrary haulage rope, and then makes the lift stop operation, audible and visual annunciator send out the alarm simultaneously to remind operating personnel to in time overhaul the haulage rope, prevent the accident, improved the security performance of construction lift.

Drawings

FIG. 1 is a three-dimensional schematic view of a construction hoist haulage rope breakage-proof protection device according to the present utility model;

FIG. 2 is a schematic diagram of a construction hoist haulage rope breakage protection device according to the present utility model;

in the figure, the limit switch 1, the fixed plate 2, the mounting plate 3, the collision plate 4, the rope hitch plate 5, the rope hitch combination 6, the rope hitch rod 61, the spring 62, the nut 63 and the hinge 7.

Detailed Description

In order that the manner in which the utility model is practiced, as well as the features and objects and advantages thereof, will be readily apparent from the following detailed description of the utility model taken in conjunction with the accompanying drawings 1-2.

Referring to fig. 1-2, the utility model provides a protection device for preventing a traction rope of a construction hoist from breaking, which consists of a limit switch 1, a fixed plate 2, a mounting plate 3 and a collision plate 4, wherein the fixed plate 2 is fixed on a rope end plate 5, one side of the fixed plate 2 opposite to a rope end combination 6 is fixed with a vertical mounting plate 3, and the mounting plate 3 is fixed with the limit switch 1; the top of the fixed plate 2 is provided with a striking plate 4, the striking plate 4 is connected to the fixed plate 2 through a hinge 8, the striking plate can make seesaw rotation by taking the top of the fixed plate 2 as a supporting point, one end of the striking plate 4 is positioned above the rope head combination 6, the other end of the striking plate 4 is positioned above the limit switch 1, one end of the striking plate 4 is positioned at the limit switch and bent into a U-shaped straight hook, and the straight hook of the striking plate 4 is slightly adjacent to the limit switch 1; the limit switch 1 is connected with a safety loop and an audible and visual alarm. The rope head combination 6 comprises a rope head rod 61, a spring 62 and a nut 63, wherein the lower surface of the rope head rod 61 is connected with an elevator traction rope, and after the rope head rod 61 passes through a hole on the rope head plate 5, the spring 62 and the nut 63 for compressing the spring are sleeved on the rope head rod 61; when the construction elevator normally operates, the spring 62 on the rope end combination 6 is in a compressed state, and the striking plate 4 is slightly adjacent to the limit switch 4; when at least one traction rope is broken, the spring 62 on the rope end combination 6 stretches, so that the rope end combination 6 impacts the collision plate 4 to enable the limit switch to act, the elevator is stopped, and meanwhile the audible and visual alarm gives an alarm.

Working principle: when the construction elevator normally operates, the spring on the rope head assembly is in a compressed state, and the collision plate is slightly close to the limit switch; when at least one traction rope is broken, the spring on the rope head combination is stretched, so that the rope head combination impacts the collision plate, the other end of the collision plate presses the limit switch, the limit switch acts, the elevator is stopped, and the audible and visual alarm gives an alarm.

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

Claims

1. The anti-breakage protection device for the traction rope of the construction elevator is characterized by comprising a limit switch (1), a fixed plate (2), a mounting plate (3) and a collision plate (4); the fixing plate (2) is fixed on the rope head plate (5), a vertical mounting plate (3) is fixed on one surface of the fixing plate (2) opposite to the rope head combination (6), and a limit switch (1) is fixed on the mounting plate (3); the top of fixed plate (2) is provided with hits board (4), hit board (4) can regard fixed plate (2) top as the strong point and do seesaw rotation, the one end that hits board (4) is located the top of fag end combination (6), and the other end is located the top of limit switch (1), and hits board (4) and be next to limit switch (1) slightly.

2. The anti-breakage protection device for the traction rope of the construction hoist according to claim 1, wherein the rope end assembly (6) comprises a rope end rod (61), a spring (62) and a nut (63), the lower surface of the rope end rod (61) is connected with the traction rope of the elevator, and the spring (62) and the nut (63) are sleeved on the rope end rod (61) after passing through a hole in a rope end plate (5).

3. A construction hoist haulage rope breakage protection device according to claim 2, characterized in that the striking plate (4) is located at one end above the rope end assembly (6) at a distance from the rope end assembly smaller than the elongation of a wire haulage rope breakage spring (62).

4. The construction elevator traction rope breakage-proof protection device according to claim 1, wherein the striking plate (4) is connected to the fixed plate (2) by a hinge (7) and can rotate around the fixed plate.

5. The protection device for preventing breakage of a traction rope of a construction hoist according to claim 1, wherein the striking plate (4) is positioned at one end of the limit switch (1) and bent into a U-shaped straight hook, and is slightly abutted against the limit switch (1).

6. A construction hoist traction rope breakage prevention means according to claim 1, characterized in that the length of the end of the striking plate (4) above the limit switch (1) is shorter than the length of the end above the rope hitch (6).