CN209758845U - Hoisting accessory and tower crane - Google Patents

Abstract

The utility model discloses a hoisting accessory and tower crane, the lifting hook body includes the gib head that the order is connected, hook body and hook tail, the gib head rotates and installs on the connecting seat, be equipped with on the hook tail and only turn to portion and spacing portion, be equipped with the arc wall that is on a parallel with lifting hook body rotation plane on the connecting seat, spacing portion rotates the in-process along with the lifting hook body and has the position that is located in the arc wall and outside the arc wall, the arc wall has limit structure, the electro-magnet is installed on the connecting seat and is located arc wall one side, it makes spacing portion rotate outside the arc wall to rotate the lifting hook body, can be with hoist and mount thing hook on the lifting hook body or take off hoist and mount thing from the lifting hook body this moment, it makes spacing portion rotate to the arc wall in to rotate the lifting hook body, and adsorb only turn to portion through the electro-magnet, make the lifting hook body unable rotation, lifting hook body and connecting seat constitute round loop configuration, the lifting And (4) falling off.

Description

Hoisting accessory and tower crane

Technical Field

The utility model relates to a hoist technical field especially relates to a jack-up accessory and tower crane.

Background

The tower crane is called tower crane for short, also called tower crane, originated from western Europe, has large operation space, is mainly used for vertical and horizontal conveying of materials and installation of building members in building construction, and consists of three parts, namely a metal structure, a working mechanism and an electrical system, wherein the metal structure comprises a tower body, a movable arm, a base and the like, the working mechanism comprises four parts of lifting, amplitude changing, rotating and walking, and the electrical system comprises a motor, a controller, a power distribution cabinet, a connecting circuit, a signal and lighting device and the like.

however, the existing crane hook is simple in structure, and when the object is lifted by the hook, the object easily slides down, so that certain potential safety hazards are caused.

SUMMERY OF THE UTILITY MODEL

For solving the technical problem who exists among the background art, the utility model provides a hoisting accessory and tower crane.

The utility model provides a hoisting accessory, which comprises a hook body, a connecting seat and an electromagnet;

the hook body comprises a hook head, a hook body and a hook tail which are connected in sequence, the hook head is rotatably arranged on the connecting seat, the hook tail is provided with a rotation stopping part, and the end part of the hook tail is provided with a limiting part;

The connecting seat is provided with an arc-shaped groove, the arc-shaped groove penetrates through the connecting seat, the arc-shaped groove is parallel to the rotating plane of the lifting hook body, the limiting part has positions in the arc-shaped groove and outside the arc-shaped groove in the rotating process of the limiting part along with the lifting hook body, the arc-shaped groove has a limiting structure, and the limiting structure is used for limiting the limiting part to move along the depth direction and the width direction of the arc-shaped groove;

The electromagnet is installed on the connecting seat and located on one side of the arc-shaped groove, and the electromagnet adsorbs the rotation stopping part to limit the rotation of the lifting hook body.

Preferably, the hook head is hinged with the hook body, and the hook body is fixedly connected with the hook tail.

Preferably, the limiting structure may be: the arc wall width is crescent along arc wall degree of depth direction, and the state that spacing position is in the arc wall supports and leans on the arc wall inside wall, or, the arc wall inside wall is equipped with spacing arch, and the state that spacing position is in the arc wall supports and leans on spacing arch is close to arc wall bottom one side.

preferably, the connecting base is provided with a switch for controlling the on/off of the electromagnet.

Preferably, the switch is an automatic reset switch, the automatic reset switch is located in the arc-shaped groove, and the limiting portion extrudes the button on the automatic reset switch in the state of being located in the arc-shaped groove.

Preferably, the connecting seat is provided with an indicator light for indicating the on/off of the electromagnet.

Preferably, the axis of rotation of the hook head is in the plane of the hook body, or the axis of rotation of the hook head is perpendicular to the plane of the hook body.

A tower crane applies the hoisting accessory.

The utility model discloses in, the hoisting accessory that proposes rotates the lifting hook body and makes spacing portion rotate outside the arc wall, can be with hoist and mount thing hook on the lifting hook body or take off hoist and mount thing from the lifting hook body this moment, rotate the lifting hook body and make spacing portion rotate to the arc wall in to adsorb the portion of splines through the electro-magnet, lead to the unable rotation of lifting hook body, lifting hook body and connecting seat constitute round annular structure, the lifting hook body carries hoist and mount thing and can not follow the lifting hook body and drop on reciprocating the hoist and mount thing of in-process hook on the lifting hook body.

Drawings

Fig. 1 is a front view of a lifting accessory according to the present invention;

Fig. 2 is an axial view of a lifting accessory according to the present invention;

fig. 3 is an axial view of a lifting accessory according to the present invention;

fig. 4 is a front view of another design of a lifting accessory according to the present invention.

Detailed Description

As shown in fig. 1-4, fig. 1 is a front view of a hoisting accessory provided by the present invention, fig. 2 is an axial view of a hoisting accessory provided by the present invention, fig. 3 is an axial view of a hoisting accessory provided by the present invention, and fig. 4 is a front view of another design of a hoisting accessory provided by the present invention.

Referring to fig. 1-3, the utility model provides a hoisting accessory, the hoisting accessory comprises a hook body 1, a connecting seat 2 and an electromagnet 3;

The connecting seat 2 is used for being connected with a steel rope on a movable arm of the tower crane and driving the connecting seat 2 to move up and down through the steel rope;

the lifting hook body 1 comprises a hook head 11, a hook body 12 and a hook tail 13 which are connected in sequence, the hook head 11 is rotatably installed on the connecting seat 2, the hook head 11 in the embodiment is of a linear structure and is formed into a half-circle structure, the hook tail 13 is also of a linear structure, the hook head 11, the hook body 12 and the hook tail 13 in the sample embodiment form a U-shaped structure, the rotating axis of the hook head 11 is parallel to the length direction of the hook head 11, the hook head 11 drives the whole lifting hook body 1 to rotate, a rotation stopping part 14 is arranged on the hook tail 13, and a limiting part 15 is arranged at the end part of the hook tail 13;

The connecting base 2 is provided with an arc-shaped groove, the arc-shaped groove penetrates through the connecting base 2, the arc-shaped groove is parallel to a rotating plane of the lifting hook body 1, the limiting part 15 has positions in the arc-shaped groove and outside the arc-shaped groove in the rotating process of the limiting part 15 along with the lifting hook body 1, when a hanging object needs to be hooked on the lifting hook body 1 or taken down from the lifting hook body 1, the lifting hook body 1 is rotated to enable the limiting part 15 to reach the outside of the arc-shaped groove, after the hanging object is hooked, the limiting part 15 is rotated to enable the limiting part 15 to reach the inside of the arc-shaped groove before the lifting hook body 1 moves after the hanging object is hooked, the arc-shaped groove is provided with a limiting structure;

the electromagnet 3 is arranged on the connecting seat 2 and is positioned on one side of the arc-shaped groove, and the electromagnet adsorbs the rotation stopping part 14 to limit the rotation of the lifting hook body 1.

In the hoisting accessory use that this embodiment provided, rotate lifting hook body 1 and make spacing portion 15 rotate outside the arc wall, can be with hoist and mount thing hook on lifting hook body 1 this moment, hoist and mount thing hooked well back rotation lifting hook body 1 makes spacing portion 15 rotate to the arc wall in, and adsorb rotation stopping portion 14 through electro-magnet 3, make lifting hook body 1 unable rotation, lifting hook body 1 and connecting seat 2 constitute round annular structure, lifting hook body 1 carries hoist and mount thing and reciprocates the in-process and catches hold of with the hook and can not drop from lifting hook body 1 on lifting hook body 1, after lifting hook carries hoist and mount thing arrival predetermined position, close electro-magnet 3, it makes spacing portion 15 rotate outside the arc wall to rotate lifting hook body 1, take off hoist and mount thing from lifting hook body 1 this moment, a duty cycle has been accomplished.

In this embodiment, gib head 11 is articulated with gib body 12, and gib body 12 and hook tail 13 fixed connection rotate to the arc wall after outside when spacing portion 15, and gib body 12 and hook tail 13 drop under self action of gravity for lifting hook body 1 forms great opening, is convenient for with the hoist and mount thing hook on lifting hook body 1.

In the embodiment, the limiting structure is that the inner side wall of the arc-shaped groove is provided with a limiting bulge, the limiting part 15 is abutted against one side, close to the bottom of the arc-shaped groove, of the limiting bulge in a state that the limiting part 15 is positioned in the arc-shaped groove, when the lifting hook carries a lifting object to move, the lifting object generates acting force on the lifting hook body 1, the limiting part 15 generates downward acting force on the limiting bulge, and therefore the gravity of the lifting object is dispersed on the hook head 11 and the hook tail 13, the lifting is more reliable, and the electromagnet 3 is not subjected to the gravity of the lifting object and only used for limiting the rotation of; in another design, the width of the arc-shaped groove gradually increases along the depth direction of the arc-shaped groove, the limiting part 15 is positioned in the arc-shaped groove and is abutted against the inner side wall of the arc-shaped groove, and the design can achieve the same effect.

In this embodiment, the connecting seat 2 is provided with a switch for controlling the electromagnet 3 to be turned on/off, and further, the switch is an automatic reset switch, the automatic reset switch is located in the arc-shaped groove, when the limiting portion 15 is located in the arc-shaped groove, the limiting portion 15 extrudes a button on the automatic reset switch to enable the button to be pressed down, so that the electromagnet 3 is turned on, the rotation stopping portion 14 is adsorbed by the electromagnet 3, and when the limiting portion 15 is located outside the arc-shaped groove, the button on the automatic reset switch automatically resets.

In another design of the switch, the switch may be disposed on the connection base 2 at a position convenient for pressing, and the worker manually operates the switch to control the electromagnet 3 to be turned on/off.

In this embodiment, the connecting seat 2 is provided with an indicator light for indicating the on/off of the electromagnet 3, so as to be convenient for knowing whether the electromagnet 3 works normally.

Referring to fig. 4, in another design, the rotation axis of the hook head 11 is perpendicular to the plane of the hook body 1, which can also achieve the above-mentioned effect.

a tower crane applies the lifting hook.

The above, only be the concrete implementation of the preferred embodiment of the present invention, but the protection scope of the present invention is not limited thereto, and any person skilled in the art is in the technical scope of the present invention, according to the technical solution of the present invention and the utility model, the concept of which is equivalent to replace or change, should be covered within the protection scope of the present invention.

Claims (8)

1. A hoisting accessory is characterized by comprising a hook body (1), a connecting seat (2) and an electromagnet (3);

The lifting hook body (1) comprises a hook head (11), a hook body (12) and a hook tail (13) which are connected in sequence, the hook head (11) is rotatably arranged on the connecting seat (2), a rotation stopping part (14) is arranged on the hook tail (13), and a limiting part (15) is arranged at the end part of the hook tail (13);

the connecting seat (2) is provided with an arc-shaped groove, the arc-shaped groove penetrates through the connecting seat (2), the arc-shaped groove is parallel to a rotating plane of the lifting hook body (1), the limiting part (15) has positions located in the arc-shaped groove and outside the arc-shaped groove in the rotating process along with the lifting hook body (1), the arc-shaped groove is provided with a limiting structure, and the limiting structure is used for limiting the limiting part (15) to move along the depth direction and the width direction of the arc-shaped groove;

The electromagnet (3) is arranged on the connecting seat (2) and is positioned on one side of the arc-shaped groove, and the electromagnet adsorbs the rotation stopping part (14) to limit the rotation of the lifting hook body (1).

2. Lifting accessory according to claim 1, characterized in that the hook head (11) is hinged to the hook body (12), and the hook body (12) is fixedly connected to the hook tail (13).

3. A lifting accessory as claimed in claim 1, wherein the restraining formation may be: the arc wall width is crescent along arc wall degree of depth direction, and spacing portion (15) are supported and are leaned on the arc wall inside wall under the state that is located the arc wall, or, the arc wall inside wall is equipped with spacing arch, and spacing portion (15) are supported and are leaned on under the state that is located the arc wall spacing arch is close to arc wall bottom one side.

4. A lifting accessory as claimed in claim 1, characterized in that the connecting socket (2) is provided with a switch for controlling the electromagnet (3) to be switched on/off.

5. Accessory according to claim 4, characterized in that the switch is an automatic reset switch which is located in an arc-shaped groove and the stop (15) is located in the arc-shaped groove and presses a button on the automatic reset switch.

6. A lifting accessory as claimed in claim 1, characterized in that the connecting socket (2) is provided with an indicator light for indicating the opening/closing of the electromagnet (3).

7. lifting accessory according to claim 1, characterized in that the axis of rotation of the hook head (11) lies in the plane of the hook body (1) or the axis of rotation of the hook head (11) is perpendicular to the plane of the hook body (1).

8. a tower crane, wherein a lifting accessory according to any one of claims 1-7 is applied.