CN205099215U

CN205099215U - Anti -falling device of guide holder on hoist pull rod

Info

Publication number: CN205099215U
Application number: CN201520887595.7U
Authority: CN
Inventors: 徐鸿书
Original assignee: Qingdao Port International Co Ltd
Current assignee: Qingdao Port International Co Ltd
Priority date: 2015-11-10
Filing date: 2015-11-10
Publication date: 2016-03-23
Anticipated expiration: 2025-11-10

Abstract

The utility model discloses an anti -falling device of guide holder on hoist pull rod is for overcoming the current guide holder on hoist davit pull rod of installing, and because of being in the state that the high altitude hung, the maintenance personal is difficult to reach the maintenance, has that the shortcoming of taking off the potential safety hazard of falling because of the bolt pine provides, and between the guide holder and pull rod on the hoist pull rod, there is the chain in the company of hanging. Owing to install coupling together with the chain in the middle of the guide holder of pull rod eminence and the pull rod, breaking away from the pull rod in case the bolt pine of fixed guide holder takes off or split messenger's guide holder, the chain can be held the guide holder, and the guide holder can not followed the eminence and dropped and get off to injure by a crashing object following people or other facilities, has prevented the emergence of incident.

Description

The falling proof device of guide holder on hoisting crane pull bar

Technical field

The utility model belongs to protective equipment, specifically a kind of device preventing the guide holder on crane arm pull bar from falling.

Background technology

Hoisting crane is when stopping operation, and for ensureing safety, lifting arm needs to be parked on safe position under luffing mechanism effect.As shown in Figure 1, the pull bar 3 of hoisting crane 1 pulls arm 2 action, realizes safety in place by the pitching of arm 2.In order to pull bar 3 and front crossbeam 5 align smoothly when ensureing arm 2 pitching, generally all guide piece 6 is set on front crossbeam 5, guide holder 4 also installed by pull bar 3, pitching contraposition when ensure that arm 2 hoisting with guide holder 4 and guide piece 6 relative up and down.

Described arm 2 nutation, the guide holder 4 that pull bar 3 is installed is being done, in the process that contraposition lead, inevitably to produce slight impact with the guide piece 6 on front crossbeam 5, produces vibration unavoidably and cause the loosening of parts and even come off during collision.The arm 2 of hoisting crane 1 is under pull bar 3 acts on, repeatedly do the vibration that guiding luffing in place produces chronically, the bolt of rear end plate of guide holder 4 can be made to occur loosening, once bolt gets loose, just there will be the danger that guide holder 4 gets off from falling from high altitude, the consequence after falling is by hardly imaginable.

Because described guide holder 4 is suspended on the pull bar 3 of high empty position; when carrying out daily routine servicing maintenance to hoisting crane 1; supervisory personnel is generally not easy the position arriving guide holder 4; also just can not Timeliness coverage bolt loosen; when without any safety method, falling of guide holder 4 is also just inevitable.How preventing high-order guide holder 4 from falling, is current urgent problem.

Utility model content

Technical problem to be solved in the utility model is, overcome existing being arranged on crane arm pull bar and be in high-order guide holder, because producing vibration in guiding middle collision in place, its bolt of rear end plate is very easily got loose, maintainer is not easy to arrive maintenance, there is dangerous shortcoming of falling in guide holder, provides the falling proof device of guide holder on a kind of hoisting crane pull bar.

In order to solve the problems referred to above that prior art exists, the utility model adopts following technical proposals to realize: the guide holder on hoisting crane pull bar and between pull bar, hangs and be connected with chain.

The utility model also has following technical characteristic:

Chain between described guide holder and pull bar is hung and is connected, be positioned on pull bar guide holder is installed adapter plate on and on the pedestal of guide holder, be fixed with otic placode respectively, the link at chain two ends is worn in the connecting bore that is connected on described otic placode respectively with pin;

Described chain is stainless material.

Advantage of the present utility model and good effect are, because the guide holder and pull bar centre chain that hoisting crane are arranged on described pull bar eminence couple together, in the guiding work of guide holder, guide holder is made to depart from pull bar once the bolt of fixed guide seat gets loose or ruptures, guide holder can be held by chain, guide holder can not fall down the people below injuring by a crashing object or other facilities from eminence, prevents the generation of safety misadventure.

Accompanying drawing explanation

Fig. 1 is the structural representation sketch of hoisting crane;

Fig. 2 is the A portion enlarged diagram in Fig. 1.

Detailed description of the invention

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

In Fig. 1, when hoisting crane 1 stops operation to perch, its pull bar 3 pulls arm 2, has carried out safety in place by the pitching of arm 2.In order to when ensureing arm 2 pitching, pull bar 3 and front crossbeam 5 align smoothly, before hoisting crane 1, crossbeam 5 arranges guide piece 6, also correspondingly on pull bar 3 to be provided with the fixing guide holder 4(of bolt 8 see Fig. 2), when arm 2 pitching, the corresponding up and down of guide holder 4 and guide piece 6 is led for the pitching of arm 2.

In Fig. 2, in order to prevent the guide holder 4 that the pull bar 3 of hoisting crane 1 is installed, because maintenance causes the bolt 8 of fixed guide seat 4 get loose or rupture not in time, make guide holder 4 depart from pull bar 3 and fall and injure people below or thing by a crashing object, hang between the pull bar 3 and the pedestal of guide holder 4 of hoisting crane 1 and be connected with chain 7.When the bolt 8 of fixed guide seat 4 gets loose once because of vibration generation or to rupture and guide holder 4 departs from pull bar 3, guide holder 4 can be held and it can not be made to drop to hurt sb.'s feelings from eminence and hinder thing by one end chain 8 be connected on pull bar 3.

Between described guide holder 4 and pull bar 3, the extension of chain 7 connects, be be positioned on pull bar 3 install guide holder 4 adapter plate 3.1 on and on the pedestal of guide holder 4, be fixed with otic placode 3.2 and 4.1 respectively, the chain link at chain 7 two ends is worn with pin 9 in the connecting bore be connected on described otic placode 3.2 and 4.1 respectively.

Cause fracture damage in order to the chain 7 preventing from being chronically exposed to high-altitude gets rusty through exposing to the sun and rain, stainless material selected by described chain 7.

Claims

1. the falling proof device of guide holder on hoisting crane pull bar, is characterized in that: the guide holder on hoisting crane pull bar and hang between pull bar and be connected with chain.

2. the falling proof device of guide holder on hoisting crane pull bar as claimed in claim 1, it is characterized in that: the chain between described guide holder and pull bar is hung and connected, be be positioned on pull bar guide holder is installed adapter plate on and on the pedestal of guide holder, be fixed with otic placode respectively, the link at chain two ends is worn with pin in the connecting bore that is connected on described otic placode respectively.

3. the falling proof device of guide holder on hoisting crane pull bar as claimed in claim 1 or 2, is characterized in that: described chain is stainless material.