CN105152005A - a spreader - Google Patents

Abstract

The invention relates to a sling. The hanger includes a beam extending left and right, and the left and right ends of the beam are respectively hinged with claws for clamping the workpiece when they are buckled in place. Locking piece on the beam. The left and right ends of the crossbeam are hinged with hooks, which buckle towards each other. When in place, the workpiece is clamped, and the hooks are locked on the crossbeam by the locking part to complete the installation of the spreader; after the hoisting is completed, the locking part is unlocked. The disassembly of the sling can be completed by turning the claws in opposite directions, which improves the working efficiency of hoisting compared with the method of bundling, knotting and opening with sling ropes.

Description

a spreader

technical field

The invention relates to a sling.

Background technique

During the production process of the circuit breaker, the weight of the assembled circuit breaker body is high, and the frequency of hoisting and transportation is high. At present, the workshop mainly fixes the main body of the circuit breaker directly with the lifting rope, and then hangs it on the hook of the lifting equipment for hoisting. The bundling and untying of the lifting rope requires a high level of experience for the workers, and it is troublesome to install and disassemble. Limit the work efficiency of hoisting.

Contents of the invention

The object of the present invention is to provide a hoisting device that improves hoisting work efficiency.

In order to achieve the above object, the technical solution of the spreader of the present invention is: the spreader includes a beam extending left and right, and the left and right ends of the beam are respectively hinged with claws for clamping the workpiece when they are buckled in place. The spreader includes Locking piece used to lock the knuckles to the beam when the knuckles are snapped into place.

The locking member is a locking lever, and the locking lever is inserted in a position other than the hinged position on the claw.

The claw is hinged on the beam through a hinge axis extending in the front-back direction. The end of the beam is provided with a fixed plate positioned at the front and/or rear of the claw, and the locking rod passes through the fixed plate.

There are two fixed plates, which are respectively located at the front side and the rear side of the claws, and the locking rod is a pin shaft passing through the two fixed plates and the claws in the middle of the two fixed plates.

The hinge shaft is installed on the beam through the installation sleeve provided outside the shaft.

A suspension ring is arranged above the crossbeam, and the suspension ring is located at the transverse middle position of the crossbeam.

The beam includes a groove-shaped beam body with an opening downward.

The beneficial effects of the present invention are: the left and right ends of the crossbeam are hinged with claws, and the claws are buckled towards each other to clamp the workpiece when they are in place, and the hooks are locked on the crossbeam by the locking parts to complete the installation of the spreader; the hoisting is completed Finally, the locking part is unlocked, and the claws rotate opposite to each other to complete the disassembly of the spreader. Compared with the method of bundling, knotting and opening with hanging ropes, the work efficiency of lifting is improved.

Further, inserting the locking rod on the claw except for the hinged position can realize the locking of the claw, pull the locking rod from the claw to complete the unlocking, the installation and disassembly process is convenient and fast, and further improves work efficiency.

Furthermore, a fixing plate is provided on the front side and the rear side of the claw, and the locking rod is a pin shaft passing through the fixing plate and the claw, which is convenient for plugging and unplugging operations, and at the same time can maintain the balance of the spreader in the front and rear directions.

Description of drawings

Fig. 1 is the structural representation of hanger in the embodiment of the present invention;

Fig. 2 is a side view of the sling in Fig. 1 with the rings removed.

Detailed ways

Embodiments of the present invention will be further described below in conjunction with the accompanying drawings.

The specific embodiment of the spreader of the present invention, as shown in Fig. 1 to Fig. 2, spreader comprises the crossbeam that extends left and right, and crossbeam comprises the crossbeam body 1 of groove type opening downwards, and the left and right ends of crossbeam body 1 pass hinge respectively. Shaft 4 is hinged with claw 2, and the axis of hinge shaft 4 extends along the front-to-back direction, and claw 2 swings left and right in a vertical plane, and hinge shaft 4 is installed on the crossbeam by the mounting sleeve 3 installed outside the shaft. At the end of the crossbeam, fixing plates 5 are respectively welded on the front and rear sides of the crossbeam body 1. The two fixing plates 5 are located on the front and rear sides of the hook 2. The pin shaft 7 of the fixed plate 5. A suspension ring 6 is fixed on the crossbeam, and the suspension ring is positioned at the transverse middle position of the crossbeam, which is convenient to use a suspension rope to be connected with a lifting device.

When in use, first remove the pin shaft 7 from the fixing plate 5, and the two claws 2 rotate in opposite directions, and when the fastening is in place, hold the flange structure on the circuit breaker body to be hoisted. At this time, the pin shaft 7 Penetrating the fixed plate 5 and the claw 2, since the claw 2 hinged on the beam has only one degree of freedom of rotation, the installation position of the pin 7 on the claw 2 is outside the hinged position, and the claw 2 can be locked in the On the fixed plate 5 of the beam, the sling and the suspended body form a whole at this time, and the hoisting equipment performs hoisting operation by hooking the hoisting ring 6 of the sling, and pulls out the pin 7 after the hoisting is completed, so that the claws 2 are opposite to each other Rotate to complete the disassembly of the spreader.

In other embodiments of the present invention, different from the above-mentioned embodiments, the beam body is not limited to a channel structure, but can also be an angle structure or a tubular structure, and the claws and fixing plates can also be hinged at the end of the beam. There can also be only one fixing plate at the end of the beam, and the pin shaft can be replaced with other locking rods such as screws or rivets. The locking rod can also pass through the crossbeam and be inserted on the hook claw along the up and down direction, and the hook claw can be locked at a position different from the hinged position at the installation position. It is also possible to use a part of the beam body as a fixed plate structure without additional welding of the fixed plate. The locking bar can also be replaced with a hoop fixed on the cross beam or a draw-in slot hinged on the cross beam that can be turned over or other locking parts, which can lock the claws on the cross beam.

The hanger of the present invention is also applicable to other workpieces with a flange structure or a turn-edge structure, and can also clamp tubular workpieces radially, and only need to be able to clamp the workpieces when the claws are locked in place.

Claims (7)

1. A sling, characterized in that: the sling includes a beam extending left and right, the left and right ends of the beam are respectively hinged with claws for clamping the workpiece when they are buckled in place, and the sling includes The locking member used to lock the knuckles to the beam when the knuckles are snapped into place. 2. The spreader according to claim 1, characterized in that: the locking member is a locking rod, and the locking rod is inserted in a position other than the hinged position on the hook. 3. The spreader according to claim 2, characterized in that: the hook is hinged on the crossbeam through a hinge shaft whose axis extends in the front-rear direction, and the end of the crossbeam is provided with a Or the fixed plate on the rear side, the locking lever passes through the fixed plate. 4. The spreader according to claim 3, wherein there are two fixing plates, which are respectively located on the front side and the rear side of the hook, and the locking rod passes through the two fixing plates and the two fixing plates The pin shaft of the hook claw in the middle. 5. The spreader according to claim 3, characterized in that: the hinge shaft is mounted on the beam through a mounting sleeve installed outside the shaft. 6. The hanger according to claim 1, characterized in that: a suspension ring is provided above the beam, and the suspension ring is located at the middle position in the transverse direction of the beam. 7. The spreader according to any one of claims 1 to 6, wherein the beam comprises a groove-shaped beam body with an opening downward.