CN212198153U

CN212198153U - Lifting hook for building construction tower crane

Info

Publication number: CN212198153U
Application number: CN202020659589.7U
Authority: CN
Inventors: 朱巧玲
Original assignee: Zhejiang Peak Machinery Technology Co Ltd
Current assignee: Zhejiang Peak Machinery Technology Co Ltd
Priority date: 2020-04-27
Filing date: 2020-04-27
Publication date: 2020-12-22
Anticipated expiration: 2030-04-27

Abstract

The utility model discloses a lifting hook is used to construction tower crane belongs to construction equipment technical field, which comprises a housin, the inboard bottom of casing is fixed with the spacing ring, the top of spacing ring is fixed with the spring, the one end that the spacing ring was kept away from to the spring is fixed with the backup pad, the bottom symmetry of backup pad is provided with the pinion rack, the bottom of backup pad is fixed with the dead lever, the dead lever runs through and extends to the inside of casing, the inside wall symmetry of casing is provided with the head rod, and is two sets of the outer wall of head rod all is fixed with the master gear. The utility model discloses can the centre gripping cable wire when lifting by crane the heavy object, prevent its horizontal hunting, reach the purpose that improves lifting hook stability, the cable wire sways easily and rocks when avoiding general lifting hook to lift by crane the heavy object, arouses to lift by crane the heavy object horizontal hunting, and long-term great inertia is dragged and can be caused the cable wire to damage to the cable wire, finally leads to the emergence of incident even fracture to the security that should lift by crane the lifting hook has been improved.

Description

Lifting hook for building construction tower crane

Technical Field

The utility model relates to a lifting hook especially relates to a lifting hook is used to construction tower crane belongs to building construction equipment technical field.

Background

The building construction refers to production activities in the engineering construction implementation stage, is the construction process of various buildings, and also can be a process of changing various lines on a design drawing into a real object at a specified place. The method comprises foundation engineering construction, main structure construction, roofing engineering construction, decoration engineering construction and the like. The site of the construction work is called a "construction site" or a "construction site", also called a construction site;

the tower crane is the most common hoisting equipment on the construction site, is called as a tower crane, is lengthened (high) section by section (called as a standard section for short) and is used for hoisting construction raw materials such as reinforcing steel bars, wood ridges, concrete, steel pipes and the like for construction, and is indispensable equipment on the construction site;

lifting hook on current tower crane is hanging the heavy object after, because the shape of heavy object is irregular or both ends weight maldistribution, the heavy object can rock aloft after the hoist and hang, and then arouse rocking of cable wire, and rocking of cable wire can lead to the fact a series of problems, influences the stability when hanging in midair, and the security is lower, and the cable wire can produce wearing and tearing with the junction in addition, and long-term wearing and tearing can cause the cable wire fracture to the risk of work has been increased.

SUMMERY OF THE UTILITY MODEL

The utility model aims at providing a construction tower crane is with lifting hook to hoist cable easily rocks, the relatively poor problem of security when lifting by crane the heavy object among the solution prior art.

The purpose of the utility model can be achieved by adopting the following technical scheme:

a lifting hook for a building construction tower crane comprises a shell, wherein a limiting ring is fixed at the bottom of the inner side of the shell, a spring is fixed at the top of the limiting ring, a supporting plate is fixed at one end, away from the limiting ring, of the spring, a toothed plate is symmetrically arranged at the bottom of the supporting plate, a fixing rod is fixed at the bottom of the supporting plate, the fixing rod penetrates through and extends into the shell, first connecting rods are symmetrically arranged on the inner side wall of the shell, main gears are fixed on the outer walls of the two groups of first connecting rods, second connecting rods are symmetrically arranged on the inner side, close to the outer side of the shell, auxiliary gears are fixed on the outer sides of the two groups of second connecting rods, the auxiliary gears are meshed with the two groups of main gears, a clamping plate is fixed on the outer side of the middle position of the second connecting rods, limiting blocks are symmetrically arranged on the two sides of the supporting plate, and a lifting hook is fixed at one end of the fixed rod, which is far away from the supporting plate.

Preferably: the inner bottom wall of the lifting hook is provided with a clamping groove, and the joint of the clamping groove and the lifting hook is arc-shaped.

Preferably: the clamping plate is a steel plate, the two sides of the clamping plate are both fixed with inclined plates, and the bottom of the clamping plate is an inclined plane.

Preferably: the outer walls of the main gear and the auxiliary gear are provided with lubricating coatings, and the sizes of the main gear and the auxiliary gear are the same.

Preferably: the inner wall of lifting hook is provided with the slipmat, and the slipmat is rubber slipmat.

Preferably: the number of the shells is two, and the two shells are connected through a bolt.

The utility model has the advantages that:

the utility model provides a pair of lifting hook is used to construction tower crane:

1. through the mutual matching use of the limiting ring, the spring, the supporting plate, the toothed plate, the fixing rod, the first connecting rod, the main gear, the second connecting rod, the auxiliary gear and the clamping plate, the steel cable can be clamped while a heavy object is lifted, the left-right swinging of the steel cable is prevented, the purpose of improving the stability of the lifting hook is achieved, the problem that the steel cable is easy to swing and rock when the lifting hook lifts the heavy object generally is avoided, the lifted heavy object swings left and right, the steel cable is damaged due to long-term large-inertia pulling, even the steel cable is broken, and finally safety accidents are caused is avoided, so that the safety of the lifting hook is;

2. through the design of the clamping plate, the contact area between the clamping plate and the steel cable can be increased, so that the steel cable is clamped more stably, and the time for stabilizing heavy objects is shortened, so that the stability of the steel cable is improved;

3. through the use of mutually supporting of lifting hook and draw-in groove, can prevent that the suspension rope from skidding or droing in the lifting hook, and the antiskid is with low costs, reduces production manufacturing cost, has satisfied the production demand of enterprise and has improved its security simultaneously.

Drawings

FIG. 1 is a front sectional view of the present invention;

FIG. 2 is an enlarged view of the structure A of FIG. 1 according to the present invention;

FIG. 3 is a schematic view of the clamping plate of the present invention;

fig. 4 is a schematic view of the working state of the present invention;

fig. 5 is a schematic view of the structure of the hook of the present invention.

In the figure: 1-shell, 2-limiting ring, 3-spring, 4-supporting plate, 5-toothed plate, 6-fixing rod, 7-first connecting rod, 8-main gear, 9-second connecting rod, 10-pinion, 11-clamping plate, 12-limiting block, 13-limiting hole, 14-lifting hook and 15-clamping groove.

Detailed Description

In order to make the technical solutions of the present invention clearer and clearer for those skilled in the art, the present invention will be described in further detail with reference to the following embodiments and drawings, but the embodiments of the present invention are not limited thereto.

As shown in fig. 1-5, this embodiment provides a lifting hook for a tower crane in building construction, which includes a housing 1, a limiting ring 2 is fixed at the bottom of the inner side of the housing 1, a spring 3 is fixed at the top of the limiting ring 2, a supporting plate 4 is fixed at one end of the spring 3 away from the limiting ring 2, toothed plates 5 are symmetrically arranged at the bottom of the supporting plate 4, a fixing rod 6 is fixed at the bottom of the supporting plate 4, the fixing rod 6 penetrates and extends into the housing 1, first connecting rods 7 are symmetrically arranged on the inner side wall of the housing 1, main gears 8 are fixed on the outer walls of the two groups of first connecting rods 7, second connecting rods 9 are symmetrically arranged at the inner side of the housing 1, pinions 10 are fixed at the outer sides of the two groups of second connecting rods 9, the pinions 10 are engaged with the two groups of main gears 8, a clamping plate 11 is fixed at the outer side of the middle position of the second connecting rods, limiting holes 13 matched with the limiting blocks 12 are symmetrically formed in the two sides of the shell 1, and lifting hooks 14 are fixed at one ends, far away from the supporting plate 4, of the fixing rods 6.

In this embodiment, as shown in fig. 5, a clamping groove 15 is formed in the inner bottom wall of the hook 14, a joint between the clamping groove 15 and the hook 14 is an arc, and a rope binding a heavy object is placed inside the clamping groove 15, so that the rope is prevented from slipping and falling off, and the stability of the heavy object after being lifted is improved.

In this embodiment, as shown in fig. 3 and 4, the clamping plate 11 is a steel plate, and the two sides of the clamping plate 11 are both fixed with inclined plates, and the bottom of the clamping plate 11 is an inclined surface, when the inclined plates arranged at the two sides are turned over to the outside of the steel cable suspended on the hook 14, the inclined plates arranged at the two sides are also in contact with the steel cable at the same time, so as to increase the clamping area, thereby improving the overall stability.

In the present embodiment, as shown in fig. 1, the outer walls of the main gear 8 and the pinion gear 10 are provided with a lubricating coating, and the main gear 8 and the pinion gear 10 are the same in size, and the lubricating coating is provided to reduce direct friction of the gears, reduce loss, and prolong the service life of the gears.

In this embodiment, as shown in fig. 5, the inner wall of the lifting hook 14 is provided with a non-slip mat, and the non-slip mat is a rubber non-slip mat, and the non-slip mat can prevent the rope binding the heavy object from sliding, so as to prevent the rope from shaking, and improve the safety of the lifting hook.

In the present embodiment, as shown in fig. 4, the number of the housings 1 is two, and the two housings 1 are connected by bolts.

As shown in fig. 1 to 5, the working process of the lifting hook for the building construction tower crane provided by the embodiment is as follows:

step 1: hanging the tied weight in the lifting hook 14 through a rope, and clamping the rope in the clamping groove 15;

step 2: starting tower crane equipment to drive the lifting hook to integrally rise, wherein due to the gravity of a heavy object, the lifting hook 14 is pulled by the heavy object to move downwards, the downward movement of the lifting hook 14 can drive the fixing rod 6 and the supporting plate 4 to move downwards, the supporting plate 4 moves downwards and simultaneously drives the main gear 8 to rotate through the toothed plate 5, the main gear 8 can drive the pinion 10 to rotate in the opposite direction, and then one end of the clamping plate 11, far away from the pinion 10, is driven to downwards overturn until the two clamping plates 11 contact and clamp the steel cable hooked by the lifting hook 14, so that the steel cable is prevented from shaking;

and step 3: the inclined plates at the two sides of the clamping plate 11 increase the clamping area between the clamping plate 11 and the steel cable, and complete more comprehensive clamping.

The above description is only a further embodiment of the present invention, but the scope of protection of the present invention is not limited thereto, and any person skilled in the art can replace or change the technical solution and the concept of the present invention within the scope of the present invention.

Claims

1. The utility model provides a construction tower crane is with playing lifting hook which characterized in that: the gear transmission device comprises a shell (1), wherein a limiting ring (2) is fixed at the inner bottom of the shell (1), a spring (3) is fixed at the top of the limiting ring (2), a supporting plate (4) is fixed at one end, far away from the limiting ring (2), of the spring (3), toothed plates (5) are symmetrically arranged at the bottom of the supporting plate (4), a fixing rod (6) is fixed at the bottom of the supporting plate (4), the fixing rod (6) penetrates through and extends to the inside of the shell (1), first connecting rods (7) are symmetrically arranged on the inner side wall of the shell (1), main gears (8) are respectively fixed on the outer walls of the two groups of first connecting rods (7), second connecting rods (9) are symmetrically arranged on the inner side, close to the outer side of the shell (1), auxiliary gears (10) are respectively fixed on the outer sides of the two groups of the second connecting rods (9), and the auxiliary gears (10) are meshed with the, the outside of second connecting rod (9) intermediate position is fixed with grip block (11), the both sides of backup pad (4) are all the symmetry and are provided with stopper (12), the both sides of casing (1) are all the symmetry be provided with stopper (12) assorted spacing hole (13), the one end that backup pad (4) were kept away from in dead lever (6) is fixed with lifting hook (14).

2. The lifting hook for the building construction tower crane according to claim 1, characterized in that: the inner bottom wall of the lifting hook (14) is provided with a clamping groove (15), and the joint of the clamping groove (15) and the lifting hook (14) is arc-shaped.

3. The lifting hook for the building construction tower crane according to claim 1, characterized in that: the clamping plate (11) is a steel plate, the two sides of the clamping plate (11) are both fixed with inclined plates, and the bottom of the clamping plate (11) is an inclined plane.

4. The lifting hook for the building construction tower crane according to claim 1, characterized in that: the outer walls of the main gear (8) and the auxiliary gear (10) are provided with lubricating coatings, and the main gear (8) and the auxiliary gear (10) are identical in model and size.

5. The lifting hook for the building construction tower crane according to claim 1, characterized in that: and the inner wall of the lifting hook (14) is provided with a non-slip mat, and the non-slip mat is a rubber non-slip mat.

6. The lifting hook for the building construction tower crane according to claim 1, characterized in that: the number of the shells (1) is two, and the two shells (1) are connected through bolts.