CN216737185U

CN216737185U - Lifting hook and crane using same

Info

Publication number: CN216737185U
Application number: CN202123390375.8U
Authority: CN
Inventors: 潘彪
Original assignee: Nanjing Liba Crane Machine Co ltd
Current assignee: Nanjing Liba Crane Machine Co ltd
Priority date: 2021-12-30
Filing date: 2021-12-30
Publication date: 2022-06-14
Anticipated expiration: 2031-12-30

Abstract

The utility model provides a lifting hook and a crane using the same, comprising an installation part and a hook part arranged on the installation part, wherein the hook part comprises a positioning shaft, a positioning block, a connecting shaft and a hook body; a transverse stop block extends towards the upper part of the groove at the end part of the hook body, a first ferrule and a second ferrule are connected to the outside of the connecting shaft in a sliding manner along the axial direction, a longitudinal anti-release piece buckled outside the end port of the groove of the hook body is fixed outside the first ferrule, a sleeve piece is fixed outside the first ferrule, and a transverse anti-release piece pressed towards the bottom side of the stop block by a transverse spring is sleeved in the sleeve piece; the transverse anti-falling part is fixed with a clamping block, the sleeve part is provided with a first clamping groove used for being matched with the clamping block to move, the bottom side of the longitudinal anti-falling part is also provided with a second clamping groove used for being matched with the clamping block to move, and the connecting shaft is also sleeved with a longitudinal spring used for being pressed between the positioning block and the longitudinal anti-falling part.

Description

Lifting hook and crane using same

Technical Field

The utility model relates to a lifting hook and a crane using the same.

Background

The lifting hook is the most common lifting appliance in hoisting machinery, the crane is connected with the lifting hook by virtue of a steel wire rope for operation, the lifting hook comprises a lifting hook body and a lifting hook pulley which is rotatably assembled on the lifting hook body, and the steel wire rope needs to be wound on a winding drum and wound on the lifting hook pulley, so that the purpose of lifting and hoisting an object is realized; but the general structure of current lifting hook is comparatively simple single, and anti-disengaging structure on it can play ordinary protection anticreep effect under the environment of generally lifting by crane, and in case the external force collision extrusion appears, then also have very big risk of dropping.

Therefore, a lifting hook with better anti-falling effect and higher stability and a crane using the lifting hook are urgently needed.

SUMMERY OF THE UTILITY MODEL

The utility model aims to provide a lifting hook and a crane using the same, which have better anti-falling effect and higher stability.

The utility model provides the following technical scheme:

a lifting hook comprises an installation part and a hook part arranged on the installation part, wherein the hook part comprises a positioning shaft, a positioning block rotatably connected to the positioning shaft, a connecting shaft connected to the bottom of the positioning block and at least two groups of symmetrically distributed hook bodies connected to the bottom of the connecting shaft, and two ends of the positioning shaft are positioned and fixed through two groups of installation blocks arranged in the installation part; the end part of the hook body extends towards the upper part of the groove of the hook body to form a transverse stop block, a first ferrule and a second ferrule are axially and slidably connected outside the connecting shaft, a longitudinal anti-release piece which is buckled outside the end port of the groove of the hook body is fixed outside the first ferrule, a sleeve piece is fixed outside the first ferrule, and a transverse anti-release piece which is pressed towards the bottom side of the stop block by a transverse spring is sleeved in the sleeve piece; the transverse anti-release piece is fixedly provided with a clamping block, the sleeve piece is provided with a first clamping groove used for being matched with the clamping block to move, the bottom side of the longitudinal anti-release piece is also provided with a second clamping groove used for being matched with the clamping block to move, and the connecting shaft is also sleeved with a longitudinal spring used for being pressed between the positioning block and the longitudinal anti-release piece.

Preferably, a jacking ring used for matching with the jacking longitudinal spring is further fixed on the first ferrule, and a lifting block used for assisting in lifting the longitudinal anti-release piece is fixed outside the jacking ring.

Preferably, the installation part is further provided with a hook pulley, and the top side and the bottom side of the hook pulley are further matched with two groups of limiting rotating rollers in an abutting mode.

Preferably, the cross section of the mounting portion is a rectangular frame.

Preferably, the locating piece includes by two sets of package piece units of lead screw threaded connection and fixes the slider unit at the connecting axle top, and two sets of package piece unit package are established outside the location axle, and its bottom side is provided with two sets of spouts that set up relatively, and two sets of spouts are in opposite directions motion sliding connection under the drive of lead screw on slider unit top slider, and the longitudinal section of slider unit top slider is the arc surface.

A crane comprising a hook as claimed in any one of the preceding claims.

The utility model has the beneficial effects that: through setting up horizontal anticreep piece and vertical anticreep piece, so hang behind the ditch inslot of couple body at the article that will lift by crane, compress horizontal spring, stretch into the external member back with horizontal anticreep piece, enter into the ditch inslot of couple body, and then relax horizontal spring, horizontal anticreep piece is spacing in horizontal stopper, and then relax vertical spring, vertical anticreep piece moves down under the pressure of vertical spring, until the lock outside couple body slot port, the upper portion of fixture block can be spacing in the second draw-in groove of vertical anticreep piece bottom side simultaneously, thereby anticreep effect when collision extrusion is received to improvement that can be better, and improve overall stability.

Drawings

The accompanying drawings, which are included to provide a further understanding of the utility model and are incorporated in and constitute a part of this specification, illustrate embodiments of the utility model and together with the description serve to explain the principles of the utility model and not to limit the utility model. In the drawings:

FIG. 1 is a structural sectional view of a hook of the present invention in example 1;

FIG. 2 is a structural sectional view of the hook of the present invention in example 2;

notation in the figure: the anti-dropping device comprises a mounting portion 1, a positioning shaft 2, a positioning block 3, a connecting shaft 4, a hook body 5, a mounting block 6, a transverse blocking block 7, a first ferrule 8, a second ferrule 9, a longitudinal anti-dropping piece 10, a kit 11, a transverse anti-dropping piece 12, a clamping block 13, a first clamping groove 14, a second clamping groove 15, a longitudinal spring 16, a top pressing ring 17, a lifting block 18, a hook pulley 19, a limiting rotating roller 20, a screw rod 21 and a top end sliding block 22.

Detailed Description

Example 1

As shown in fig. 1, a structural cross-sectional view of a hook, in this embodiment, includes an installation portion 1 and a hook member installed on the installation portion 1, the hook member includes a positioning shaft 2, a positioning block 3 rotatably connected to the positioning shaft 2, a connecting shaft 4 connected to the bottom of the positioning block 3, and at least two groups of symmetrically distributed hook bodies 5 connected to the bottom of the connecting shaft 4, two ends of the positioning shaft 2 are positioned and fixed by two groups of installation blocks 6 installed in the installation portion 1; a transverse stop block 7 extends from the end part of the hook body 5 to the upper part of the groove of the hook body, a first ferrule 8 and a second ferrule 9 are axially and slidably connected outside the connecting shaft 4, a longitudinal anti-falling part 10 used for being buckled outside the end port of the groove of the hook body 5 is fixed outside the first ferrule 8, a sleeve part 11 is fixed outside the second ferrule 9, and a transverse anti-falling part 12 pressed towards the bottom side of the stop block by a transverse spring is sleeved inside the sleeve part 11; a clamping block 13 is fixed on the transverse anti-release element 12, a first clamping groove 14 for matching the clamping block 13 to move is formed in the sleeve element 11, a second clamping groove 15 for matching the clamping block 13 to move is further formed in the bottom side of the longitudinal anti-release element 10, and a longitudinal spring 16 for abutting against and pressing between the positioning block 3 and the longitudinal anti-release element 10 is further sleeved outside the connecting shaft 4.

A jacking ring 17 used for matching with the jacking longitudinal spring 16 is further fixed on the first ferrule 8, and a lifting block 18 used for assisting in lifting the longitudinal anti-release piece 10 is fixed outside the jacking ring 17. The mounting part 1 is also provided with a hook pulley 19, and the top side and the bottom side of the hook pulley 19 are also matched with and pressed against two groups of limiting rotating rollers 20. The cross section of the mounting part 1 is a rectangular frame.

In addition, the embodiment of the utility model also provides a crane, which comprises the lifting hook in the embodiment.

Example 2

As shown in fig. 2, a cross-sectional view of a hook structure, in this embodiment, the difference from embodiment 1 is that, in order to facilitate replacement of a hook body 5 deformed or damaged by long-term use, a positioning block 3 may be provided to include two groups of wrapping block units connected by a screw 21 and a slider unit fixed on the top of a connecting shaft 4, the two groups of wrapping block units are wrapped outside a positioning shaft 2, and two groups of sliding grooves are provided on the bottom side of the positioning shaft 2, the two groups of sliding grooves are connected to a slider 22 at the top end of the slider unit in a sliding manner by being driven by the screw 21 to move in opposite directions, and the longitudinal section of the slider 22 at the top end of the slider unit is an arc surface, so that the two groups of wrapping block units can be far away from the positioning shaft 2 by rotating the screw 21, and at this time the two groups of sliding grooves can slide out from the slider 22 at the top end of the slider unit, thereby achieving the purpose of quickly separating the hook body 5 from the positioning block 3, and because the longitudinal section of the top end sliding block 22 of the sliding block unit is a circular arc surface, the hook body 5 can be ensured to have a certain rotating movable space around the top end sliding block 22 of the sliding block unit in the direction vertical to the positioning shaft 2.

The working principle of the utility model is as follows: through setting up horizontal anticreep piece and vertical anticreep piece, so hang behind the ditch inslot of couple body at the article that will lift by crane, compress horizontal spring, stretch into the external member back with horizontal anticreep piece, enter into the ditch inslot of couple body, and then relax horizontal spring, horizontal anticreep piece is spacing in horizontal stopper, and then relax vertical spring, vertical anticreep piece moves down under the pressure of vertical spring, until the lock outside couple body slot port, the upper portion of fixture block can be spacing in the second draw-in groove of vertical anticreep piece bottom side simultaneously, thereby anticreep effect when collision extrusion is received to improvement that can be better, and improve overall stability.

Although the present invention has been described in detail with reference to the foregoing embodiments, it will be apparent to those skilled in the art that changes may be made in the embodiments and/or equivalents thereof without departing from the spirit and scope of the utility model. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention.

Claims

1. A lifting hook comprises an installation part and a hook part arranged on the installation part, and is characterized in that the hook part comprises a positioning shaft, a positioning block rotatably connected to the positioning shaft, a connecting shaft connected to the bottom of the positioning block and at least two groups of symmetrically distributed hook bodies connected to the bottom of the connecting shaft, wherein two ends of the positioning shaft are positioned and fixed through two groups of installation blocks arranged in the installation part;

the end part of the hook body extends towards the upper part of the groove of the hook body to form a transverse stop block, a first ferrule and a second ferrule are axially and slidably connected outside the connecting shaft, a longitudinal anti-falling part used for being buckled outside the end opening of the groove of the hook body is fixed outside the first ferrule, a sleeve part is fixed outside the ferrule, and a transverse anti-falling part pressed towards the bottom side of the stop block by a transverse spring is sleeved in the sleeve part;

the transverse anti-release piece is fixedly provided with a clamping block, the sleeve piece is provided with a first clamping groove used for being matched with the clamping block to move, the bottom side of the longitudinal anti-release piece is further provided with a second clamping groove used for being matched with the clamping block to move, and the connecting shaft is further sleeved with a longitudinal spring used for being pressed between the positioning block and the longitudinal anti-release piece.

2. A lifting hook as claimed in claim 1, wherein a pressing ring is fixed to the first collar for engaging with a pressing longitudinal spring, and a lifting block is fixed to the outside of the pressing ring for assisting in lifting the longitudinal anti-release member.

3. A lifting hook as claimed in claim 1, wherein the mounting portion further comprises a hook pulley, and the top and bottom sides of the hook pulley are further fitted against two sets of limiting rollers.

4. A lifting hook as claimed in claim 1, wherein the mounting portion is a rectangular frame in cross-section.

5. The lifting hook as claimed in claim 1, wherein the positioning block comprises two groups of wrapping block units which are connected by screw threads of a screw rod, and a sliding block unit which is fixed on the top of the connecting shaft, the two groups of wrapping block units are wrapped outside the positioning shaft, two groups of oppositely arranged sliding grooves are arranged on the bottom side of the wrapping block units, the two groups of sliding grooves are connected on the sliding block at the top end of the sliding block unit in a sliding manner in a way of moving towards each other under the driving of the screw rod, and the longitudinal section of the sliding block at the top end of the sliding block unit is a circular arc surface.

6. A crane comprising a hook according to any one of claims 1 to 5.