Multi-point crane sling

Abstract

A multi-point crane lifting appliance effectively solves the problems of unstable lifting and low working efficiency and comprises a lifting appliance body, a plurality of groups of first clamping mechanisms and second clamping mechanisms are mounted below the lifting appliance body, each first clamping mechanism comprises a first shell, a first positioning shaft and a second positioning shaft are fixed in each first shell, and each first positioning shaft and the corresponding second positioning shaft are fixed in the corresponding first shell. The first clamping mechanism comprises a first shell, a fixing shaft is installed at the lower end of the first telescopic rod, the first gripper arm and the second gripper arm are both hinged to the fixing shaft, a first sliding groove corresponding to the first positioning shaft is formed in the first gripper arm, and a second sliding groove corresponding to the second positioning shaft is formed in the second gripper arm. A first clamping jaw is rotationally connected to the third positioning shaft, a second clamping jaw is rotationally connected to the fourth positioning shaft, a first gear is fixed to the first clamping jaw, a second gear meshed with the first gear is fixed to the second clamping jaw, a protruding block is fixed to the top end of the first clamping jaw, and the protruding block is hinged to the base through a second telescopic rod.

Description

TECHNICAL FIELD

[0001] The utility model belongs to crane sling technical field, especially, relate to a kind of multi-point crane sling. BACKGROUND

[0002] With the rapid development of society, modular construction is more and more widely applied to various construction in recent years. However, due to the difference in structure, volume, weight and size, the hoisting puts forward higher requirements, and the traditional hoisting tool is arranged with multiple adjusting hoisting points on the hoisting beam. The lower side of the hoisting beam is moved by auxiliary hoisting equipment, and the worker needs to hang the connecting rigging in the air after adjusting in place. It is not only dangerous, but also low in hoisting efficiency. CONTENT OF THE UTILITY MODEL

[0003] In view of the above situation, in order to overcome the defects of the prior art, the purpose of the utility model is to provide a kind of multi-point crane sling, which effectively solves the problems of unstable hoisting and low work efficiency.

[0004] The technical scheme for solving the technical problem is: including sling body, a plurality of first clamping mechanisms and second clamping mechanisms are installed below the sling body, the first clamping mechanism includes a first shell, the first shell is fixedly connected with the sling body, a first positioning shaft and a second positioning shaft are fixedly arranged in the first shell, a first telescopic rod is slidably connected in the first shell, the first positioning shaft and the second positioning shaft are symmetric about the first telescopic rod in left-right direction, a fixed shaft is installed at the lower end of the first telescopic rod, a first jaw and a second jaw are arranged in the first shell, the first jaw and the second jaw are hingedly connected with the fixed shaft, the first jaw is provided with a first sliding groove corresponding to the first positioning shaft, the second jaw is provided with a second sliding groove corresponding to the second positioning shaft, the first telescopic rod controls the up-down movement of the fixed shaft, and then controls the synchronous clamping or opening of the first jaw and the second jaw.

[0005] The second clamping mechanism includes a second shell, the second shell is fixedly connected with the sling body, a transmission shaft is rotatably connected in the second shell, a base is fixedly connected at the lower end of the transmission shaft, the base is fixedly provided with a third positioning shaft and a fourth positioning shaft, a first jaw is rotatably connected on the third positioning shaft, a second jaw is rotatably connected on the fourth positioning shaft, a first gear is fixedly arranged on the first jaw, a second gear is fixedly arranged on the second jaw, the first gear is engaged with the second gear, a protrusion is fixedly arranged at the top end of the first jaw, a second telescopic rod is arranged on the base, the second telescopic rod is arranged obliquely, one end of the second telescopic rod is hingedly connected with the base, the other end of the second telescopic rod is hingedly connected with the protrusion, and the telescopic movement of the second telescopic rod controls the synchronous clamping or opening of the first jaw and the second jaw.

[0006] Preferably, the top end of the transmission shaft is fixed with a swing rod, a third telescopic rod is hinged on the second shell, and the other end of the third telescopic rod is hinged with the swing rod, and the telescopic movement of the third telescopic rod controls the rotation of the swing rod and the transmission shaft.

[0007] The lifting appliance has the following advantages: the structure is ingenious, the lifting appliance adopts a plurality of first clamping mechanisms and second clamping mechanisms in cooperation, the first clamping device and the second clamping mechanism can be used independently or in combination, are suitable for hoisting different types of goods, have a wide application range, can hoist goods at multiple points, the stress points are uniform, the stability is high, and the working efficiency is improved. BRIEF DESCRIPTION OF DRAWINGS

[0008] Figure 1 is a schematic view of a front view of the utility model;

[0009] Figure 2 is a schematic view of a top view of the utility model;

[0010] Figure 3 is a schematic view of the first clamping mechanism in a clamped state in the utility model;

[0011] Figure 4 is a schematic view of the first clamping mechanism in an open state in the utility model;

[0012] Figure 5 is a schematic view of the second clamping mechanism in the utility model;

[0013] Figure 6 is a schematic view of the structure of the first pawl and the second pawl in the utility model;

[0014] Figure 7 is Figure 2 a schematic view of a part A in an enlarged view.

[0015] Fig. 1, lifting appliance body; 2, first clamping mechanism; 3, second clamping mechanism; 4, first shell; 5, first positioning shaft; 6, second positioning shaft; 7, first telescopic rod; 8, fixed shaft; 9, first jaw; 10, second jaw; 11, first sliding groove; 12, second sliding groove; 13, second shell; 14, transmission shaft; 15, base; 16, third positioning shaft; 17, fourth positioning shaft; 18, first pawl; 19, second pawl; 20, first gear; 21, second gear; 22, protrusion; 23, second telescopic rod; 24, swing rod; 25, third telescopic rod. DETAILED DESCRIPTION

[0016] The specific embodiments of the utility model are further described in detail below with reference to the drawings.

[0017] By Figures 1 to 7Given, a multi-point crane sling, comprising a sling body 1, a plurality of first clamping mechanisms 2 and second clamping mechanisms 3 are installed below the sling body 1, the first clamping mechanism 2 comprises a first shell 4, the first shell 4 is fixedly connected with the sling body 1, the first shell 4 is fixedly connected with the first positioning shaft 5 and the second positioning shaft 6, the first shell 4 is slidably connected with the first telescopic rod 7, the first positioning shaft 5 and the second positioning shaft 6 are symmetric about the first telescopic rod 7, the lower end of the first telescopic rod 7 is provided with a fixed shaft 8, the first shell 4 is provided with a first jaw 9 and a second jaw 10, the first jaw 9 and the second jaw 10 are hingedly connected with the fixed shaft 8, the first jaw 9 is provided with a first sliding groove 11 corresponding to the first positioning shaft 5, the second jaw 10 is provided with a second sliding groove 12 corresponding to the second positioning shaft 6, the first telescopic rod 7 controls the up-down movement of the fixed shaft 8, thereby controlling the synchronous clamping or opening of the first jaw 9 and the second jaw 10;

[0018] The second clamping mechanism 3 comprises a second shell 13, the second shell 13 is fixedly connected with the sling body 1, the second shell 13 is rotatably connected with a transmission shaft 14, the lower end of the transmission shaft 14 is fixedly connected with a base 15 located below the second shell 13, the base 15 is fixedly connected with a third positioning shaft 16 and a fourth positioning shaft 17, the third positioning shaft 16 is rotatably connected with a first jaw 18, the fourth positioning shaft 17 is rotatably connected with a second jaw 19, the first jaw 18 is fixedly connected with a first gear 20, the second jaw 19 is fixedly connected with a second gear 21 engaged with the first gear 20, the top end of the first jaw 18 is fixedly connected with a protrusion 22, the base 15 is provided with a second telescopic rod 23, the second telescopic rod 23 is inclined, one end of the second telescopic rod 23 is hingedly connected with the base 15, the other end of the second telescopic rod 23 is hingedly connected with the protrusion 22, the telescopic movement of the second telescopic rod 23 controls the synchronous clamping or opening of the first jaw 18 and the second jaw 19.

[0019] The top end of the transmission shaft 14 is fixedly connected with a swing rod 24, the second shell 13 is hingedly connected with a third telescopic rod 25, the other end of the third telescopic rod 25 is hingedly connected with the swing rod 24, the telescopic movement of the third telescopic rod 25 controls the rotation of the swing rod 24 and the transmission shaft 14.

[0020] The utility model discloses in using, crane is connected with the upper end of sling body 1 through the steel wire rope, and the crane controls the hoisting operation of sling body 1, and a plurality of first clamping mechanisms 2 are distributed from left to right on the interval of sling body 1, a plurality of second clamping mechanisms 3 are distributed from left to right on the interval of sling body 1, and the first clamping mechanism 2 and the second clamping mechanism 3 position are staggered;

[0021] When the first clamping mechanism 2 is used alone, the second clamping mechanism 3 is in an open state, the first telescopic rod 7 can adopt a cylinder or a hydraulic cylinder component, the first telescopic rod 7 drives the fixed shaft 8 to move upwards, the fixed shaft 8 drives the first jaw 9 and the second jaw 10 to move upwards, since the first positioning shaft 5 is fixedly connected with the first shell 4 and the second positioning shaft 6 is fixedly connected with the first shell 4, the first positioning shaft 5 and the second positioning shaft 6 are symmetrical about the first telescopic rod 7 in the left-right direction,

[0022] Further, the first positioning shaft 5 slides relative to the first sliding groove 11, and the second positioning shaft 6 slides relative to the second sliding groove 12, so that the first jaw 9 and the second jaw 10 synchronously send the card, when the goods are located between the first jaw 9 and the second jaw 10, the first telescopic rod 7 drives the fixed shaft 8 to move downwards, the fixed shaft 8 drives the first jaw 9 and the second jaw 10 to move downwards, the first jaw 9 and the second jaw 10 simultaneously clamp the goods, and then the goods are fixed, a plurality of first clamping mechanisms 2 fix the goods at multiple points, and the safety and stability of hoisting the goods are ensured.

[0023] When the second clamping mechanism 3 is used alone, the second telescopic rod 23 is started, the first telescopic rod 7 can adopt a cylinder or a hydraulic cylinder component, when the second telescopic rod 23 is retracted, the second telescopic rod 23 drives the lug 22 to swing, the lug 22 drives the first jaw 18 to swing, the first jaw 18 drives the first gear 20 to rotate, the first gear 20 is rotationally connected with the third positioning shaft 16, the first gear 20 drives the second gear 21 to rotate, the second gear 21 is rotationally connected with the fourth positioning shaft 17, the second gear 21 drives the second jaw 19 to swing, and then the first jaw 18 and the second jaw 19 are synchronously opened, the third telescopic rod 25 is started, the first telescopic rod 7 can adopt a cylinder or a hydraulic cylinder component, the third telescopic rod 25 controls the swing lever 24 to rotate, the swing lever 24 drives the transmission shaft 14 to rotate, the transmission shaft 14 drives the base 15, the first jaw 18 and the second jaw 19 to synchronously rotate, and then the rotation angle of the first jaw 18 and the second jaw 19 is adjusted, and the flexibility is good, when the goods are located between the first jaw 18 and the second jaw 19, the second telescopic rod 23 is stretched, the second telescopic rod 23 drives the lug 22 to reset, the first jaw 18 and the second jaw 19 approach the goods, and then the first jaw 18 and the second jaw 19 simultaneously clamp the goods, a plurality of second clamping mechanisms 3 fix the goods at multiple points, and the safety of hoisting the goods is ensured.

[0024] The embodiment is not limited in shape, material, structure or the like of the utility model, and any simple modification, equivalent change and modification of the above embodiment according to the technical essence of the utility model are within the protection scope of the utility model technical scheme.

Claims

1. A multi-point crane spreader, characterized in that, The lifting appliance body (1) is provided below with a plurality of first clamping mechanisms (2) and second clamping mechanisms (3), the first clamping mechanism (2) comprises a first shell (4) fixedly connected with the lifting appliance body (1), the first shell (4) is fixedly provided with a first positioning shaft (5) and a second positioning shaft (6) therein, a first telescopic rod (7) is slidably connected in the first shell (4), the first positioning shaft (5) and the second positioning shaft (6) are symmetric about the first telescopic rod (7) in the left-right direction, the first telescopic rod (7) is provided at the lower end with a fixed shaft (8), the first shell (4) is provided with a first jaw (9) and a second jaw (10) therein, the first jaw (9) and the second jaw (10) are hingedly connected with the fixed shaft (8), the first jaw (9) is provided with a first sliding groove (11) corresponding to the first positioning shaft (5), the second jaw (10) is provided with a second sliding groove (12) corresponding to the second positioning shaft (6), the first telescopic rod (7) controls the up-down movement of the fixed shaft (8), thereby controlling the synchronous clamping or opening of the first jaw (9) and the second jaw (10). The second clamping mechanism (3) comprises a second shell (13) fixedly connected with the lifting appliance body (1), the second shell (13) is rotatably connected with a transmission shaft (14), the lower end of the transmission shaft (14) is fixedly connected with a base (15) located below the second shell (13), the base (15) is fixedly provided with a third positioning shaft (16) and a fourth positioning shaft (17) thereon, the third positioning shaft (16) is rotatably connected with a first pawl (18), the fourth positioning shaft (17) is rotatably connected with a second pawl (19), the first pawl (18) is fixedly provided with a first gear (20), the second pawl (19) is fixedly provided with a second gear (21) engaged with the first gear (20), the top end of the first pawl (18) is fixedly provided with a protrusion (22), the base (15) is provided with a second telescopic rod (23), the second telescopic rod (23) is obliquely arranged, one end of the second telescopic rod (23) is hingedly connected with the base (15), the other end of the second telescopic rod (23) is hingedly connected with the protrusion (22), the telescopic movement of the second telescopic rod (23) controls the synchronous clamping or opening of the first pawl (18) and the second pawl (19).

2. A spreader according to claim 1, characterised in that The top end of the transmission shaft (14) is fixedly provided with a swing rod (24), the second shell (13) is hingedly connected with a third telescopic rod (25), the other end of the third telescopic rod (25) is hingedly connected with the swing rod (24), the telescopic movement of the third telescopic rod (25) controls the rotation of the swing rod (24) and the transmission shaft (14).

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