CN2728551Y

CN2728551Y - Guide internal safety hook

Info

Publication number: CN2728551Y
Application number: CN 200420037472
Authority: CN
Inventors: 周建强; 吕卫国; 吕伟宏
Original assignee: Ningbo Tianhong Power Appliance Co Ltd
Current assignee: Shaoxing Electric Power Bureau; Ningbo Tianhong Power Appliance Co Ltd
Priority date: 2004-07-09
Filing date: 2004-07-09
Publication date: 2005-09-28
Anticipated expiration: 2014-07-09

Abstract

The utility model relates to a falling protective device with a built-in guide rail, which is used in overhead operation in the industries, such as electric power, telecommunication, chemical industry and architecture, comprising a falling protecting assembly and a guide rail which is arranged in the falling protecting assembly. The guide rail is installed on the climbing object of the original tall building, such as an iron tower for supporting power line. The guide rail can be made by T-shaped sectional steel, H-shaped steel or angle steel. The falling protecting assembly comprises a casing, a rolling wheel in the casing, a braking plate, a push rod and a spring. The braking plate is hinged with the casing by a pin shaft. One end of the braking plate extends out of the casing and the end part is provided with a hole which is connected with a whole-body type safety belt which is hung from the front side; the other end of the braking plate is in jagged shape and can be in contact connection with the guide rail. The braking plate is provided with a recess which faces downwardly. The push rod is arranged below the recess, and the head part of the push rod is contacted and is in slide fit with the recess. The spring is arranged below the push rod. The utility model has the advantages of good rigidity, simple structure, easy use, less abrasion and safety performance; The falling protective device with a built-in guide rail is suitable to be used by people in various industries who have to climb high.

Description

The built-in catching device of guide rail

Technical field

The utility model relates to fall arrest lifesaving technical field of safety devices, relates to especially that to be used for the work high above the ground personnel with belt, under flip-flop action situation, and device that can automatic falling-proof.

Background of invention

In industries such as the power transmission and transformation of power system, telecommunication, chemical industry work high above the ground is arranged all, need ascend a height; In building field, the construction of highrise building, maintenance, maintenance also often relate to ascend operation, owing to there is not reliable falling-proof safety device, safety code can't be implemented, and causes the accident in the ascend operation to take place frequently; As China's power industry regulation, ascend operation must not lose the safety belt protection, and in fact, shaft tower can't be brought into play the safety belt effect up and down; A kind of " falling proof device of ascending a height " (patent No.: 96227757.6) was once disclosed on China's utility model patent communique, its anti-falling device one end is a crotch shape, can hook special cat ladder column, the opening part of crotch is withstood by bearing pin, make openings get smaller, anti-falling device is unlikely from the column slippage, can pass through treadle again; This kind structure when the operating personnel climbs, must be handed anti-falling device, and opening is aimed at, and with by treadle, climbs up and climb down all inconveniences, the energy and the notice of disperseing the people easily; China's patent of invention also disclosed a kind of " work high above the ground personnel's automatic falling-proof devices " (notification number: CN1100576C), it is to be passed in the saturating up and down empty housing by safety rope, locking mode is with cam extruding rope, itself and shell wall are fixed, thereby stop human body to glide, the detection roller is housed, according to acceleration that glides or speed limit control cam action on the bearing pin of cam; Falling accident when this scheme can prevent that the work high above the ground personnel from ascending a height, but because the insurance rope is a flexible body, rock easily, make the operating personnel produce panic sense; In the time of about the operating personnel, rope and housing are among the direct friction, and the required precision height is made in wearing and tearing, and mechanism's relative complex easily.

Summary of the invention

The purpose of this utility model is in order to overcome above-mentioned defective, provide a kind of good rigidly, simple in structure, easy to use, wearing and tearing less, the safe and reliable built-in catching device of guide rail.

For achieving the above object, the technical solution of the utility model is such: the built-in catching device of a kind of guide rail, by fall arrest assembly and place the guide rail two parts in it to form; Guide rail is installed on the climbing thing of type highrise buildings such as original cable pylon; This guide rail can be used T-shape steel, " worker " word steel or angle steel; Fall arrest assembly comprises parts such as roller in the housing, housing, keep plate, push rod, spring; Housing is provided with tensioner outward, is connected on the housing, to increase the friction of guide rail and fall arrest assembly, fall arrest assembly is unlikely under the self gravitation effect glides; Keep plate is hinged by bearing pin and housing, and an end of keep plate stretches out housing, and the end is provided with the hole that is connected with front hanging type whole body type safety belt, and other end indentation can be connected with the guide rail contact; Have down a depression on keep plate, a head is set under the depression contacts the push rod that is slidingly matched with depression, divide into spring, spring places on the housing inner spring seat.

In inactive state, keep plate is under the deadweight and the interaction of spring force, and at the pivot point moment that do not rotate, its zigzag one end does not contact with guide rail at this moment; Fall arrest assembly is close to guide rail under the effect of tensioner, because of the unlikely downslide of friction, can be in inactive state in any position; When the personnel of ascending a height climbed, exposing on the end that keep plate is connected with safety belt carried, and keep plate rotates along bearing pin, and its zigzag one end departs from guide rail, fall arrest assembly by roller along guide rail with moving on the human body; When need moved down, keep plate did not produce the commentaries on classics distance at pivot point under the drive synergy that the spring force of push rod and deadweight and human body move down, and made that keep plate is unlikely to rotate along bearing pin, and its zigzag one end does not contact with guide rail yet; And the friction of obeying fall arrest assembly and guide rail is made every effort to overcome in moving down of human body, and fall arrest assembly is glided with human body along guide rail; Human body drops suddenly when climbing or moving down, and keep plate is under the tenesmus impact force action, by push rod compression spring; keep plate rotates along bearing pin; the zigzag one end extruding guide rail of keep plate blocks fall arrest assembly on guide rail rapidly, and the protection human body does not make tenesmus.

Since adopted technique scheme, the built-in catching device of a kind of guide rail of the present utility model have good rigidly, simple in structure, easy to use, wearing and tearing less, safe and reliable characteristics, be suitable for all kinds of industries personnel that ascend a height and use.

Description of drawings

Below in conjunction with drawings and Examples the utility model is described in detail.

Fig. 1 is a structural representation of the present utility model.

Fig. 2 is Fig. 1 vertical view.

Fig. 3 is the left-hand sectional view of Fig. 1.

Among the figure: 1, housing, 2, roller shaft, 3, roller, 4, guide rail, 5, bearing pin, 6, regulate bolt, 7, spring, 8, push rod, 9, keep plate, 10, tensioner.

The specific embodiment

Embodiment 1

By Fig. 1---shown in Figure 3, the built-in catching device of a kind of guide rail of the present utility model is by fall arrest assembly and place guide rail 4 two parts in it to form; Guide rail is installed on the climbing thing of type highrise buildings such as original cable pylon; Fall arrest assembly comprises parts such as roller 3 in the housing 1, housing, keep plate 9, push rod 8, spring 7, housing is provided with tensioner 10 outward, be connected on the housing 1,, fall arrest assembly be unlikely under the self gravitation effect glide to increase the friction of guide rail and fall arrest assembly; Said roller 3 has four, and its roller shaft 2 is articulated on the housing, and roller is along guide rail both sides symmetric arrangement, and it is taken turns the limit and is connected with the guide rail contact; Keep plate 9 is hinged by bearing pin 5 and housing 1, and an end of keep plate stretches out housing, and the end is provided with the hole that is connected with front hanging type whole body type safety belt, and other end indentation can be connected with the guide rail contact; Have down a depression on keep plate, a head is set under the depression contacts the push rod 8 that is slidingly matched with depression, divide into spring 7, spring places on the housing inner spring seat, and fixing by regulating bolt 6;

Said tensioner 10 can also be used magnet with regulating bolt.

Embodiment 2

Guide rail 4 adopts " worker " word steel, and all the other repeat embodiment 1.

Embodiment 3

Guide rail 4 adopts angle steel, and all the other repeat embodiment 1.

Claims

1, the built-in catching device of a kind of guide rail is by fall arrest assembly and place guide rail (4) two parts in it to form; Guide rail is installed on the climbing thing of type highrise buildings such as original cable pylon; It is characterized in that: fall arrest assembly comprises roller (3), keep plate (9), push rod (8), the spring parts such as (7) in housing (1), the housing; Housing is provided with tensioner (10) outward, is connected on the housing (1); Said roller (3) has four, and its roller shaft (2) is articulated on the housing, and roller is along guide rail both sides symmetric arrangement, and it is taken turns the limit and is connected with the guide rail contact; Keep plate (9) is hinged by bearing pin (5) and housing (1), and an end of keep plate stretches out housing, and its end of stretching out is provided with the hole that is connected with front hanging type whole body type safety belt, and other end indentation can be connected with the guide rail contact; Have down a depression on keep plate, a head is set under the depression contacts the push rod (8) that is slidingly matched with depression, push rod is divided into spring (7), and spring places on the housing inner spring seat.

2, the built-in catching device of a kind of guide rail according to claim 1 is characterized in that: said guide rail (4) is the T-shape steel.

3, the built-in catching device of a kind of guide rail according to claim 1 is characterized in that: said guide rail (4) is " worker " word steel.

4, the built-in catching device of a kind of guide rail according to claim 1 is characterized in that: said guide rail (4) is an angle steel.