CN2143611Y

CN2143611Y - Automatic safety device for gantry crane disc

Info

Publication number: CN2143611Y
Application number: CN 92246163
Authority: CN
Inventors: 苏贵财
Original assignee: Individual
Current assignee: Individual
Priority date: 1992-12-30
Filing date: 1992-12-30
Publication date: 1993-10-13
Anticipated expiration: 2002-12-30

Abstract

The utility model relates to an automatic safety device for gantry crane discs or discharging platforms, which is used for construction engineering. The utility model mainly comprises a hanging disc (1), a safety door (2) and safety guardrails (3) and is characterized in that the hanging disc (1) is provided with the safety door (2) which is coordinated with the hanging disc (1) and can rotate automatically larger than 90 DEG, and fixing wood piles (13) of both sides of the hanging disc (1) are provided with the safety guardrails (3). Under the self gravity action, the automatic switch of the safety door is driven by the free slide of the guide pin of a door pivot in the spiral groove of a shaft sleeve, and the opening and closing action of the door is coordinated with the hanging disc without the influence of external force and with safety. Under the action of the self of the safety guardrails and the weight of the hanging disc, a guard bar is made to lift and fall automatically; when the hanging disc is fallen, the guard bar is lifted immediately; when the hanging disc is lifted, the guard bar is fallen immediately. The utility model has the advantages of simple structure, good reliability and playing safety action completely, having an application to a required safety engineering guard device in construction trade.

Description

Automatic safety device for gantry crane disc

The utility model is the portal frame hanging scaffold used on the building engineering or the automatic safe protective device of discharging platform.

Great majority are carried building materials with gantry hanging scaffold or discharging platform to the high-altitude on the building engineering, fall in order to prevent building materials, and protective door be arranged.Simultaneously hanging scaffold and platform transport up and down, when rising, forbid the people to enter below hanging scaffold and the platform, also do not allow object, and this will the guardrail block off traffic.Usually the guardrail of usefulness is to be operated by the people: guardrail must be lifted when hanging scaffold falls and wants package material, hanging scaffold after rising puts down guardrail, because frequent interval time weak point about the hanging scaffold is very cumbersome also very tired.Protective door has two kinds usually: a kind of is bolt-type, and personnel selection comes switch locked, requires great effort very much, and does not usually open Guan Bushang.Another kind is long pin formula plug-type automatically-controlled door up and down, and long pin lands, and door rises (opening), and hanging scaffold rises, long pin built on stilts, and (closing) falls in the student.When falling, hanging scaffold, long pin distortion, hanging scaffold are tilted because own wt is big, descending speed is fast, and impulsive force is very big ... thereby safety door is not opened close bad, influence work efficiency and produce unsafe factor again.

The purpose of this utility model is will design a kind of the personnel selection to operate full automatic insurance guardrail and safety door.When hanging scaffold rose, the insurance guardrail put down automatically, and the safety door SELF CL plays the safety precaution effect, and when hanging scaffold landed, the insurance guardrail lifted safety door automatically and opens automatically, was convenient to the hanging scaffold shipment.

The purpose of this utility model is realized by following structure.Safety door (2) is being installed on the hanging scaffold of portal frame, is being fixed on insurance guardrail (3) is installed on the fixedly timber of portal frame.On the door-hinge (4) of safety door (2) axle sleeve (5) is installed, guide finger (7), spring (8), chassis (9), the plug helix of the anglec of rotation greater than 90 degree arranged on the axle sleeve (5), plug helix divides left and right sides rotation direction, to open about side door, spiral fluted A end has the straight-line groove greater than 10 millimeters, when hanging scaffold falls, chassis (9) kiss the earth, by gravity, guide finger (7) rises to B from A along plug helix, make safety door (2) divide a left side, right rotation, the anglec of rotation is greater than 90 °, and safety door (2) Quan Dakai is when hanging scaffold rises, chassis (9) built on stilts, under the self gravitation effect, guide finger (7) slides to A from B, and safety door (2) is firmly closed.Insurance guardrail (3) is by vertical rod (10), guard bar (11), side arm (12), bottom bar (16), and side arm (12) is installed in fixedly on the timber (13) by adapter plate (14), rotating shaft (15), and side arm (12) can rotate around rotating shaft (15).

The utility model utilizes the safety door self gravitation, and collaborative hanging scaffold action is closed automatically, opened, because the A section has the linear portion greater than 10 millimeters, makes safety door locked, can not open safety door because of any external force effect and influences safety.The insurance guardrail leans on own wt and hanging scaffold weight, in time lifts up and down with hanging scaffold to fall, and is simple in structure, coordination, and good reliability can play the safety precaution effect fully, has saved manpower, has reduced danger again, has improved work efficiency.

Description of drawings:

Fig. 1 is a portal frame hanging scaffold automatic safety device structural representation.

Fig. 2 is the structural representation of safety door (2).

Fig. 3 is the structural representation of insurance railing (3).

Fig. 4 is that the C of figure three is to scheme drawing.

Fig. 5 is the profile scheme drawing of axle sleeve (5).

Embodiment: the framework of safety door (2) can select for use rod iron or steel pipe or other suitable materials to make as required, axle sleeve (5) is housed on the door-hinge (4), is fixed with guide finger (7), spring (8), chassis (9).Axle sleeve (5) is fixed on the hanging scaffold (1), and whole framework can rotate with respect to axle sleeve (5).Guide finger (7) can slide by easy on and off in the plug helix of axle sleeve (5), and axle sleeve (5) is gone up plug helix has two to be dextrorotation, and two is left-handed, and each plug helix all should guarantee the anglec of rotation greater than 90 degree, guarantees that door opens fully.The thickness of guide finger (7) is selected according to the weight of safety door, and spiral fluted width is determined according to the diameter of guide finger.Spring (8) is used for bearing pressure, plays cushioning effect.Chassis (9) is fixed on the door-hinge (4).Insurance guardrail (3) is to constitute enclosed shape by vertical rod (10), guard bar (11), side arm (12), bottom bar (16), and vertical rod (10) and side arm (12) are to flexibly connect, and other are all fixed, available welding or other connection modes.Side arm (12) is selected steel pipe or other suitable materials for use, it is installed in the rotating shaft (15), position when rotating shaft (15) is installed must be chosen in the weight that makes guard bar (11) the end weight greater than vertical rod (10) end, guarantee that guard bar (11) can freely fall under no external force effect, side arm (12) can rotate freely around rotating shaft (15), rotating shaft (15) is fixed on the adapter plate (14), adapter plate (14) is fixed on fixedly on the timber (13), fixedly the available timber of timber (13) also can be selected other materials for use, can be fixed on and protect on the pylon, also can imbed underground.Guard bar (11) is selected steel pipe or other suitable materials for use, and brushes into bright-colored red and white.Bottom bar (11) is selected reinforcing bar or other impact-resistant materials for use, in order to gain in strength, but at both ends peace reinforced rib.Vertical rod (10) is used for connecting side arm (12) and bottom bar (16), available steel pipe, rod or other suitable materials; the lower end fixes on the ground with chain or soft metal silk; the height of guard bar when the size of H is set level by needs (11) decides; certain height is arranged after assurance falls, fully play protective action.

Claims

1, a kind of portal frame hanging scaffold automatic safety device, mainly comprise: hanging scaffold (1), safety door (2), insurance guardrail (3), it is characterized in that: on hanging scaffold (1), be equipped with hanging scaffold (1) coordination, can rotate safety door (2) automatically greater than 90 degree, fixedly be equipped with on the timber (13) in the both sides of hanging scaffold (1) and can fall and lift the insurance guardrail (3) that falls automatically along with hanging scaffold (1) rising.

2, portal frame hanging scaffold automatic safety device according to claim 1, it is characterized in that: axle sleeve (5), guide finger (7), spring (8), chassis (9) are installed on the door-hinge (4) of safety door (2), and guide finger (7) moves along the plug helix on the axle sleeve (5) just can drive safety door (2) rotation.

3, portal frame hanging scaffold automatic safety device according to claim 2 is characterized in that: axle sleeve (5) has the anglec of rotation greater than 90 degree plug helixs, and spiral fluted initiating terminal A has the linear portion greater than 10 millimeters.

4, according to claim 1,2 or 3 described portal frame hanging scaffold automatic safety devices, it is characterized in that: insurance guardrail (3) is made up of vertical rod (10), guard bar (11), side arm (12) bottom bar (16), side arm (12) is installed in fixedly on the timber (13) by adapter plate (14), rotating shaft (15), and side arm (12) can rotate around rotating shaft (15).