CN215886027U - Mechanical four-claw hanger capable of automatically unlocking - Google Patents

Abstract

The utility model relates to the technical field of lifting appliances, in particular to a mechanical four-claw lifting appliance capable of automatically unlocking. The lifting frame comprises a lifting frame body, wherein two symmetrical clamping devices are arranged at the bottom of the lifting frame body, each clamping device comprises two symmetrical lifting hooks, the lifting hooks are hinged to the bottom of the lifting frame body, a connecting rod is arranged between the two lifting hooks, a spring is hinged between the connecting rod and the lifting frame body, two symmetrical ratchet mechanisms are arranged at the center of the bottom of the lifting frame body, each ratchet mechanism comprises a ratchet wheel disc, the ratchet wheel discs are fixed between the two lifting hooks through the connecting rods, pressing rods are meshed with the outer walls of the ratchet wheel discs, and the pressing rods are hinged to the bottom of the lifting frame body. The utility model can realize automatic unlocking and clamping stability, is convenient for subsequent safe lifting of workpieces and saves labor intensity.

Description

Mechanical four-claw hanger capable of automatically unlocking

Technical Field

The utility model relates to the technical field of lifting appliances, in particular to a mechanical four-claw lifting appliance capable of automatically unlocking.

Background

A lifting appliance refers to a device for lifting a heavy object in a lifting machine. The most common lifting appliance for lifting articles is a lifting hook and a lifting belt, other lifting rings, a lifting sucker, a clamp, a fork and the like are also used, the lifting sucker, the clamp, the fork and the like are widely applied to the lifting and hoisting industry, the lifting sucker, the clamp, the fork and the like can be used as a special lifting appliance on a crane for a long time, and can also be used as a replaceable auxiliary lifting appliance to be hung on the lifting hook for temporary use, so that the conveying of products and materials is realized, and the operation efficiency is improved.

In the hoisting work, 4 lifting hooks are needed for hoisting a large-sized workpiece, the existing hoisting tool is a single-hook hoisting tool, four sets of hoisting tools are needed, two persons are matched to hook the hoisting tool on the workpiece, the hoisting tool can be hoisted, the operation is complex, the practicability is poor, and accordingly, the mechanical four-claw hoisting tool capable of automatically unlocking is provided.

SUMMERY OF THE UTILITY MODEL

The utility model aims to provide a mechanical four-claw sling capable of automatically unlocking, so as to solve the problems in the background technology.

In order to achieve the purpose, the utility model provides a mechanical four-claw hanger capable of automatically unlocking, which comprises a hanger, wherein two symmetrical clamping devices are arranged at the bottom of the hanger, each clamping device comprises two symmetrical lifting hooks, the lifting hooks are hinged to the bottom of the hanger, a connecting rod is arranged between the two lifting hooks, a spring is hinged between the connecting rod and the hanger, two symmetrical ratchet mechanisms are arranged at the center of the bottom of the hanger, each ratchet mechanism comprises a ratchet wheel disc, the ratchet wheel discs are fixed between the two lifting hooks through the connecting rods, a pressure rod is meshed with the outer walls of the ratchet wheel discs, and the pressure rod is hinged to the bottom of the hanger.

As a further improvement of the technical scheme, the outer walls of the two ends of the hanging bracket are respectively provided with a convex plate, and the bottom of each convex plate is provided with a hanging ring.

As a further improvement of the technical scheme, connecting plates are arranged at two ends of the spring, and hooks are arranged at end parts of the connecting plates.

As a further improvement of the technical scheme, a supporting plate is arranged in the middle of the bottom of the hanging bracket, and the end part of the pressure rod, which is far away from the ratchet wheel disc, rotates on the surface of the supporting plate.

As a further improvement of the technical scheme, hinged forks are welded at four corners of the bottom of the hanging bracket, and the insides of the hinged forks are rotatably connected with the lifting hooks through pin shafts.

As a further improvement of the technical scheme, a rubber pad is sleeved on the outer wall of the lifting hook, and the rubber pad is made of elastic rubber.

As a further improvement of the technical scheme, connecting rings are arranged at four corners of the top of the hanging bracket.

Compared with the prior art, the utility model has the beneficial effects that:

in this but automatic four claw hoists of pine lock, when putting down through when the gallows, under the action of gravity of gallows, push down the lifting hook, four lifting hooks are inwards gathered together, make the work piece be located and grasp between four lifting hooks, the spring is tensile, the ratchet dish passes through the connecting rod and rotates along with the lifting hook, make depression bar one end along ratchet dish outer wall meshing motion card at the ratchet dish outer wall, the other end rotates in the gallows bottom, can restrict lifting hook antiport, improve the clamping stability, make things convenient for follow-up safe work piece of lifting by crane, after the handling, the lifting hook makes the lifting hook outwards spread and loosen the work piece under the effect of the elasticity of spring reconversion, high durability and convenient operation, automatic pine lock has been realized, and labor intensity is saved.

Drawings

Fig. 1 is a first schematic view of the overall structure of embodiment 1 of the present invention;

FIG. 2 is a second drawing illustrating the overall structure of embodiment 1 of the present invention;

FIG. 3 is a schematic structural view of a clamping device according to embodiment 1 of the present invention;

fig. 4 is a schematic view of a hanger structure according to embodiment 1 of the present invention;

fig. 5 is a schematic view of a hook structure according to embodiment 1 of the present invention.

The various reference numbers in the figures mean:

100. a hanger; 110. a connecting ring; 120. a convex plate; 121. hanging a ring; 130. a support plate;

200. a clamping device; 210. a hook; 211. a connecting rod; 212. a rubber pad; 220. a spring; 221. a connecting plate; 222. hooking; 230. a hinged fork; 240. a ratchet mechanism; 241. a ratchet wheel disc; 242. a pressure lever.

Detailed Description

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.

Example 1

Referring to fig. 1-5, the present embodiment provides an automatic-unlocking mechanical four-jaw hanger, which includes a hanger 100, two symmetrical clamping devices 200 are disposed at the bottom of the hanger 100, each clamping device 200 includes two symmetrical hooks 210, each hook 210 is hinged to the bottom of the hanger 100, a connecting rod 211 is disposed between each hook 210, a spring 220 is hinged between each connecting rod 211 and the hanger 100, the hooks 210 are initially opened under the elastic force of the spring 220, and when the hanger 100 is lowered, under the action of gravity of the hanger 100, the hooks 210 are pressed down, the four hooks 210 gather inwards, so that the workpiece is clamped between the four hooks 210, the spring 220 is stretched, the subsequent safe lifting of the workpiece is facilitated, after the hoisting is finished, the lifting hook 210 enables the lifting hook 210 to diffuse outwards to loosen the workpiece under the action of the elastic force of the spring 220, so that the operation is convenient, the labor intensity is saved, and the automatic lock feeding is realized.

In order to improve the friction force and avoid the abrasion of rigid extrusion to the workpiece, the rubber pad 212 is sleeved on the outer wall of the lifting hook 210, the rubber pad 212 is made of elastic rubber, the abrasion resistance and the corrosion resistance are good, the elasticity is sufficient, when the lifting hook 210 contacts the workpiece, the friction force can be improved, and the workpiece is prevented from being abraded by the rigid extrusion.

In order to facilitate the installation and disassembly of the spring 220, the outer walls of the two ends of the hanger 100 are provided with the convex plates 120, and the bottom of each convex plate 120 is provided with a hanging ring 121.

Specifically, spring 220 both ends all are equipped with connecting plate 221, and connecting plate 221 tip all is equipped with couple 222, through establishing couple 222, can hang a couple 222 on connecting rod 211, and another couple 222 hangs on link 121 to it is more convenient to make spring 220 install between connecting rod 211 and gallows 100, when taking off spring 220, can take off couple 222 from link 121 and connecting rod 211 respectively, and the follow-up maintenance of being convenient for is changed.

Specifically, the four corners of the bottom of the hanger 100 are welded with the hinged forks 230, the hinged forks 230 are rotatably connected with the lifting hooks 210 through pins, and the connection stability is high through the pins, so that the structural integrity is ensured.

The center of the bottom of the hanger 100 is provided with two symmetrical ratchet mechanisms 240, each ratchet mechanism 240 comprises a ratchet disc 241, each ratchet disc 241 is fixed between two hooks 210 through a connecting rod, the outer wall of each ratchet disc 241 is engaged with a pressure rod 242, each pressure rod 242 is hinged to the bottom of the hanger 100, when the hooks 210 are folded inwards and rotate, each ratchet disc 241 can rotate along the corresponding hook 210 through the connecting rod, one end of each pressure rod 242 is clamped on the outer wall of each ratchet disc 241 along the engagement motion of the outer wall of the corresponding ratchet disc 241, the other end of each pressure rod 242 rotates to the bottom of the hanger 100, the reverse rotation of the corresponding hook 210 can be limited, the clamping stability is improved, the structure is guaranteed to be complete, and after the lifting is finished, the pressure rods 242 can be lifted, the end parts of the pressure rods 242 are lifted from the outer wall of the ratchet discs 241, and the initial state of the hooks 210 can be conveniently recovered.

In order to ensure the structural integrity, the support plate 130 is arranged in the middle of the bottom of the hanger 100, the end of the pressing rod 242 far away from the ratchet wheel plate 241 rotates on the surface of the support plate 130, the structural integrity is ensured, and the adjustment is facilitated while the pressing rod 242 is fixed.

In order to facilitate the connection of the lifting device to the hanger 100, the four corners of the top of the hanger 100 are provided with connecting rings 110, the subsequent installation of the lifting device is facilitated through the connecting rings 110, and the lifting device drives the hanger 100 to move up and down.

When the mechanical four-claw hanger capable of automatically unlocking is used, when the hanger 100 is put down, the lifting hooks 210 are pressed down under the action of gravity of the hanger 100, the four lifting hooks 210 are gathered inwards, a workpiece is positioned between the four lifting hooks 210 to be clamped, then the ratchet disc 241 rotates along with the lifting hooks 210 through the connecting rods, one end of the pressure rod 242 is clamped on the outer wall of the ratchet disc 241 along the meshing motion of the outer wall of the ratchet disc 241, the other end of the pressure rod 242 rotates at the bottom of the hanger 100, the reverse rotation of the lifting hooks 210 can be limited, the clamping stability is improved, the springs 220 are stretched, the workpiece is conveniently and safely lifted subsequently, after the lifting is finished, the pressure rod 242 is lifted, the end of the pressure rod 242 is lifted from the outer wall of the ratchet disc 241, the lifting hooks 210 enable the lifting hooks 210 to diffuse outwards to loosen the workpiece under the action of the springs 220, the operation is convenient, and the labor intensity is saved.

The foregoing shows and describes the general principles, essential features, and advantages of the utility model. It will be understood by those skilled in the art that the present invention is not limited to the embodiments described above, and the preferred embodiments of the present invention are described in the above embodiments and the description, and are not intended to limit the present invention. The scope of the utility model is defined by the appended claims and equivalents thereof.

Claims (7)

1. A mechanical four-claw hanger capable of being automatically unlocked comprises a hanger (100), and is characterized in that: the lifting frame (100) bottom is equipped with clamping device (200) of two symmetries, clamping device (200) include two symmetrical lifting hooks (210), lifting hook (210) articulate in lifting frame (100) bottom, be equipped with connecting rod (211) between two lifting hooks (210), connecting rod (211) with it has spring (220) to articulate between lifting frame (100), lifting frame (100) bottom center department is equipped with two symmetrical ratchet mechanism (240), ratchet mechanism (240) include ratchet dish (241), ratchet dish (241) are fixed two through the connecting rod between lifting hook (210), ratchet dish (241) outer wall meshing has depression bar (242), depression bar (242) articulate in lifting frame (100) bottom.

2. The automatically releasable lockable mechanical four-jaw spreader of claim 1, wherein: the outer walls of two ends of the hanging bracket (100) are respectively provided with a convex plate (120), and the bottom of each convex plate (120) is provided with a hanging ring (121).

3. The automatically releasable lockable mechanical four-jaw spreader of claim 2, wherein: both ends of the spring (220) are provided with connecting plates (221), and the end parts of the connecting plates (221) are provided with hooks (222).

4. The automatically releasable lockable mechanical four-jaw spreader of claim 1, wherein: the middle of the bottom of the hanging bracket (100) is provided with a supporting plate (130), and the end part of the pressure rod (242) far away from the ratchet wheel disc (241) rotates on the surface of the supporting plate (130).

5. The automatically releasable lockable mechanical four-jaw spreader of claim 1, wherein: the four corners of the bottom of the hanger (100) are welded with hinged forks (230), and the insides of the hinged forks (230) are rotatably connected with the lifting hooks (210) through pin shafts.

6. The automatically releasable lockable mechanical four-jaw spreader of claim 1, wherein: the outer wall of the lifting hook (210) is sleeved with a rubber pad (212), and the rubber pad (212) is made of elastic rubber.

7. The automatically releasable lockable mechanical four-jaw spreader of claim 1, wherein: four corners of the top of the hanger (100) are provided with connecting rings (110).

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