CN2178709Y - Four-rail anti-break rope and safety device of throttle valve interlocking anti-drop for well-shape stand elevator - Google Patents

Abstract

The utility model relates to a four-rail interlocking anti-drop anti-break rope and safety device of a valve for well-shaped stand elevators, which comprises a cross beam, a press beam, a batten, an eccentric lock pawl, a supporting plate, a handlebar and a rail bearing plate. When a steel cable of a hanging cage is connected with the press beam and is broken, the press beam drops down, and the batten downwards presses the eccentric lock pawl to be tilted and extended into the rail bearing plate to prevent a hanging cage from dropping; when the valve of the cage is opened, the valve strikes the rotating supporting board of the handlebar to support the eccentric lock pawl to extend above the rail bearing plate in order to achieve the purpose of interlocking the valve and preventing drop. The utility model adopts four symmetrical lock pawls to act synchronously, the brake is quick and reliable, and the utility model is an anti-drop safety device for well-shaped elevators.

Description

Four-rail anti-break rope and safety device of throttle valve interlocking anti-drop for well-shape stand elevator

The utility model belongs to construction machine, relates to the anti-fall safety device of a kind of well cabinet frame elevator craning cage anti-break rope.

Existing well cabinet frame elevator, generally adopt the guide rail of steel pipe as elevator craning cage, only with two guide rails, the cage falling-proof safety device that it adopts is when steel rope disconnects suddenly, promoting rod member by spring pressure stretchs out to both sides, block the well cabinet frame, to prevent the cage tenesmus, to stretch out well cabinet frame distance big because of rod member for this device, and required braking time is long, and the kinetic energy that makes cage drop because of the effect of acceleration due to gravity is very big, cause the impact failure of well cabinet frame serious, when cage centre-of gravity shift, causing the accident because of the braking failure appears in braking force overbalance easily.In addition, cage stops layer between construction layer, and is inconsiderate with maintenance because of the pernetti fault only with traditional pernetti safety device during workmen's throttle valve input and output material, causes the generation of card cage accident easily.

The purpose of this utility model provides four channel-section steels of a kind of employing and makes guide rail, and when disconnected rope, four retaining pawls of cage can snap in the guide rail synchronously rapidly and have the anti-fall safety device of throttle valve interlocking concurrently.

The utility model is achieved in that with the guide rail of four channel-section steels as four symmetries of cage, a highly fixed at a certain distance bearing plate on the relative channel-section steel concave panel of guide rail, a pressure beam that moves up and down is housed on the crossbeam of cage, the boatswain chair of each fixed one strut beam of crossbeam two ends, press the hanger at beam two ends to be connected with the steel rope that hangs cage by suspension rod, above the pressure beam, the laminated spring of two symmetries is set, it compresses the pressure beam by bolt with certain pressure, down either side at the crossbeam two ends, fixing two pairs by bearing pin can be around the eccentric retaining pawl of bearing pin rotation, above eccentric retaining pawl, there is one to be cemented in the press strip of pressing beam sides, below retaining pawl, have one can rotate the supporting plate that holds up retaining pawl, supporting plate links to each other with handle by connecting rod.When the elevator normal operation, steel rope strains at cage, presses Liang Shangyi, and press strip moves on also.Eccentric retaining pawl is sagging because of the off-centre deadweight; do not contact with guide rail; cage lifting this moment freely; when being parked in construction floor input and output material as cage; gate need upwards draw back to drive on the handle and carry; make supporting plate rotate and hold up retaining pawl, stretch into and block bearing plate in the guide rail, realize the anti-fall purpose of throttle valve interlocking; input and output material finishes; gate is left behind and is closed, and drives handle and presses down, and supporting plate is return; eccentric retaining pawl is sagging automatically because of the off-centre deadweight; the normal lifting of cage; in case steel rope disconnects suddenly, at laminated spring pressure and press the beam deadweight to drive to press down beam and fall rapidly, press strip is pressed in downwards on the eccentric retaining pawl; retaining pawl upwards rotates; four retaining pawls stretch into rapidly in the Baltimore groove of guide rail synchronously, are stuck on the bearing plate, and the prevention cage drops and plays the effect of anti-break rope anti-falling protection.

Further narrate the utility model structure below in conjunction with accompanying drawing.

Fig. 1 is the utility model structural representation, (a) is front view; (b) be birds-eye view

Fig. 2 is the press strip configuration diagram;

Fig. 3 is the support board structure diagrammatic sketch.

See Fig. 1, the utility model includes crossbeam (1), presses beam (2), boatswain chair (3), suspension rod (5) laminated spring (6), bolt (8), eccentric retaining pawl (9), bearing pin (10), press strip (11), supporting plate (12), connecting rod (13), handle (14), end carriage (15), channel-section steel guide rail (16), bearing plate (17), waits composition.Four guide rails (16) of symmetric arrangement are all made with channel-section steel, on the concave panel of channel-section steel every a height 290cm symmetry fixed bearing plate (17), press beam (2), crossbeam (1), end carriage (15) is all made with channel-section steel, pressing beam (2) to be placed on crossbeam (1) goes up also and can rotate up and down in the boatswain chair (3) that is cemented in crossbeam (1) both end sides, press the hanger (4) on the beam (2) to be connected with the steel rope that hangs cage by suspension rod (5), place two boards spring (6) laminated spring (6) and be pressed on by bolt (8) on the pressure beam (2) on press beam (2), support (7) is cemented on the crossbeam (1).Be consolidated with end carriage (15) at the two ends of crossbeam (1), end carriage (15) can flexibly connect with the side panel of cage, down either side at crossbeam (1) two ends, being equipped with two pairs can be around the eccentric retaining pawl (9) of bearing pin (10) rotation, bearing pin (10) is installed between internal support plate (18) and external support plate (19), and guaranteeing that retaining pawl is sagging because of off-centre deadweight nature, an end of inside and outside back plate (18,19) is cemented on the end carriage (15).In the top of retaining pawl (9) eccentric end, there is one to be cemented in the press strip (11) of pressing beam (2) side, to make with angle steel, it can leave along with pressing moving up and down of beam (2) or press and touch retaining pawl (9).Below in retaining pawl (9), be provided with and rotate the supporting plate (12) that holds up retaining pawl (9) other end with the rotation of connecting rod (13), supporting plate (12) links to each other with handle (14) by connecting rod (13), and connecting rod (13) is rotatable, and its fulcrum is fixed on the external support plate (19).In gate (20) inboard, be consolidated with down dead man (22) and go up dead man (21), the usefulness of touching handle (14) as gate (20) pull-up or when falling.During the elevator normal operation, steel rope strains at cage, press on the beam (2) and move, press strip (11) leaves retaining pawl (9), retaining pawl (9) is sagging because of off-centre deadweight nature, do not contact with guide rail (16), cage lifting this moment freely, when elevator when construction layer stops layer input and output material, gate (20) is pulled up, following dead man (22) is run into handle (14) and supporting plate (12) is rotated, and upwards jack-up retaining pawl (9) other end stretches in guide rail (16) groove, blocks bearing plate (17) and reaches the throttle valve anti-fall purpose of interlocking.Gate (20) is fallen at closing time, last dead man (21) is run into handle (14) and is made supporting plate (12) counter-rotating leave upper moveable claw (9), retaining pawl (9) is sagging because of the off-centre deadweight, leave guide rail (16) groove, the normal lifting of cage, when steel rope disconnects suddenly, press beam (2) to move down rapidly, press strip (11) is pressed and is touched retaining pawl (9) eccentric end, make the other end perk of four retaining pawls stretch in guide rail (16) groove, block bearing plate (17), stop 3 cages to fall, prevent that the accident that disconnected rope cage falls from taking place.

The utility model has the advantage of that four symmetrical guide rails are steadily reliable, the lock pawl energy synchronization action of four symmetries, braking is rapidly, time is short, and maximum the downslide just can make cage stop falling in 290 millimeters behind the disconnected rope, and be safe and reliable, brake compensation is even, vibrates littlely, and well cabinet frame and cage are not damaged. The utility model structure is firm, make easily, installation, use, easy to maintenance, is the safe and reliable anti-dropping safety device of well cabinet frame lift.

Claims (1)

1, a kind of well cabinet frame elevator four rail anti-break ropes and throttle valve gate interlock anti-dropping safety device is characterized in that:

Four guide rails (16) of a, symmetric arrangement are made with channel-section steel, on the concave panel of channel-section steel every a certain altitude spacing symmetry fixed bearing plate (17).

B, on cage crossbeam (1), lay one and press beam (2), press beam (2) in the boatswain chair (3) that is cemented in crossbeam (1) both end sides, to move up and down.

C, on press beam (2), place two boards spring (6), be pressed on the pressure beam (2) by bolt (8).

D, in the down either side at crossbeam (1) two ends, two pairs of eccentric retaining pawls (9) that can rotate around bearing pin (10) are installed, bearing pin (10) is installed between internal support plate (18) and external support plate (19).

The eccentric end of e, eccentric retaining pawl (9) top has one to be cemented in the press strip (11) of pressing beam (2) side, and it can leave or press and touch retaining pawl (9) with upper and lower the moving of pressing beam (2).

F, in the below of eccentric retaining pawl (9), be equipped with one and can rotate the supporting plate (12) that holds up retaining pawl (9) other end with connecting rod (13), connecting rod (13) is connected with handle (14), connecting rod (13) fulcrum is fixed on the external support plate (19), and handle (14) can be touched by driving lever (21,22) about gate (20) is when moving up and down.

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