CN214780260U

CN214780260U - Tower crane lifting hook convenient to replace

Info

Publication number: CN214780260U
Application number: CN202022708892.4U
Authority: CN
Inventors: 朱宝华; 李秋成; 黄飞勇; 赵金刚
Original assignee: Jiangxi Tengchang Construction Engineering Co ltd
Current assignee: Jiangxi Tengchang Construction Engineering Co ltd
Priority date: 2020-11-20
Filing date: 2020-11-20
Publication date: 2021-11-19
Anticipated expiration: 2030-11-20

Abstract

The utility model discloses a tower crane lifting hook convenient to change, the connecting seat comprises a connecting seat, the bearing box is installed to the bottom of connecting seat, the crotch is installed to the bottom of bearing box, the connecting axle is installed by the top to the inboard of crotch, the closed pole is installed in the outside of connecting axle, the spout has all been seted up, and is two sets of to the inner wall both sides of bearing box the slider is all installed, and is two sets of install the limiting plate between the slider, the spring is installed to the bottom of limiting plate, the siren is all installed by both sides to the inner wall bottom of bearing box, the fixed plate is installed to the bottom of spring, the both sides of connecting seat are run through and are installed rings, the limiting plate is all installed at the both ends of rings. A tower crane lifting hook convenient to change, increased the alarm structure, can remind staff's overweight condition to improve safety in utilization, and simplified the part of connection, made things convenient for subsequent change and the maintenance of lifting hook.

Description

Tower crane lifting hook convenient to replace

Technical Field

The utility model relates to a tower crane lifting hook field, in particular to tower crane lifting hook of convenient change.

Background

The tower crane lifting hook is widely used in the field of buildings and industrial places, generally, a heavy object is lifted from one place and moved to another place to be taken down, labor force is saved, working efficiency is improved, and the tower crane lifting hook serving as one of key parts in lifting equipment is widely used in various loading, unloading and carrying work.

Firstly, the existing tower crane hook is complex in structure, complex in parts for connecting the tower crane, difficult to detach once connected, not beneficial to subsequent maintenance, troublesome in maintenance and influenced in the use efficiency of the hook; secondly, current tower crane lifting hook lacks the structure of weighing, leads to whether the gravity of the object of knowing in handling exceeds the limit, has certain potential safety hazard, is unfavorable for the use.

SUMMERY OF THE UTILITY MODEL

The main object of the utility model is to provide a tower crane hook convenient to replace, which can effectively solve the problems of complex structure, complex parts for connecting the tower crane, difficult disassembly once being connected, difficult subsequent maintenance, trouble for maintenance and influence on the use efficiency of the hook in the prior art; secondly, current tower crane lifting hook lacks the structure of weighing, leads to whether the gravity of the object of knowing in handling exceeds the limit, has certain potential safety hazard, is unfavorable for the technical problem who uses.

In order to achieve the above purpose, the utility model adopts the following technical scheme:

a tower crane hook convenient to replace comprises a connecting seat, wherein a bearing box is installed at the bottom end of the connecting seat, a hook is installed at the bottom end of the bearing box, a connecting shaft is installed on the inner side of the hook by the top end, a closing rod is installed on the outer side of the connecting shaft, sliding grooves are formed in two sides of the inner wall of the bearing box, sliding blocks are installed on the outer sides of two groups of sliding grooves, a limiting plate is installed between the two groups of sliding blocks, a spring is installed at the bottom end of the limiting plate, alarms are installed on the bottom end of the inner wall of the bearing box by two sides, and a fixing plate is installed at the bottom end of the spring;

the utility model discloses a bolt, including connecting seat, limiting plate, screw bolt, rings, limiting plate, two sets of the both sides of connecting seat are run through and are installed rings, the limiting plate is all installed at the both ends of rings, and one side of limiting plate is all run through and is installed the screw by the middle part, the round hole has all been seted up by the both ends of rings to the inner wall both sides of connecting seat, threaded bolt is run through at the both ends of connecting seat, the gasket is installed in the bottom outside of threaded bolt.

As a further scheme of the utility model, the inboard top of rings is leaned on the mid-mounting to have the rubber pad, and the both ends fixed connection of rings is in the inner wall both sides of connecting seat.

As a further aspect of the present invention, the top fixed connection of the bearing box is in the bottom of the connecting seat, and the bottom fixed connection of the bearing box is on the top of the hook.

As a further aspect of the present invention, the one end of the closing rod is movably connected to one side of the connecting shaft, and the other side of the connecting shaft is fixedly connected to the inner side of the hook by a top end.

As a further proposal of the utility model, the two ends of the limiting plate are movably connected in the bearing box through the sliding block and the sliding groove, and the bottom end of the limiting plate is connected with the top end of the alarm by two sides.

As a further scheme of the utility model, the thread groove has been seted up on the top of bearing box, and the bottom of screw thread bolt installs the screw cap, and the bottom length of screw thread bolt is greater than the width of connecting seat.

Compared with the prior art, the utility model discloses following beneficial effect has: the utility model discloses in fix the top at the crotch with the bearing box through the fixed plate, when hanging the object on the crotch, can drag the limiting plate through spout and slider downwards because of gravity, along with the hook is hung more objects, the limiting plate will reach the top of siren, the model of siren is ASDXC-, trigger the siren and make it can send the warning sound and remind the staff, the weight of the object that must alleviate, avoid moving the object overweight, and lead to the crotch harm, and the security of transport has been improved, after lightening the object weight, the characteristic resilience of the spring that the limiting plate can utilize, no longer trigger the siren, can be when overweight through setting up the bearing box, remind the staff, thereby the safety in utilization of crotch has been improved, the security of tower crane has been improved;

through the top that the threaded bolt breaks away from the bearing box with the connecting seat, thereby make the crotch drop off, it is comparatively convenient to dismantle, and pass through limiting plate and screw fixation in the inside of connecting seat because of rings, when using, because of the one end length of screw is greater than the diameter of round hole, so can play the effect of restriction, avoid the inside that the both ends of rings break away from the connecting seat, use safety has been increased, and compare normal lifting hook coupling mechanism, the part has been reduced, the dismantlement has been made things convenient for, convenience is provided for subsequent change and maintenance, the gasket of threaded bolt bottom installation can reduce the harm to the connecting seat simultaneously, increase its life, and the cost is reduced.

Drawings

FIG. 1 is a schematic view of the overall structure of a tower crane hook of the present invention, which is convenient to replace;

FIG. 2 is a schematic view of the internal structure of the bearing box of the tower crane hook of the present invention, which is convenient to replace;

fig. 3 is the utility model relates to a convenient tower crane lifting hook's of changing cross-sectional view of connecting seat.

In the figure: 1. a connecting seat; 2. a load-bearing box; 3. a connecting shaft; 4. a closing rod; 5. hooking; 6. a chute; 7. a slider; 8. a limiting plate; 9. a spring; 10. an alarm; 11. a fixing plate; 12. a hoisting ring; 13. a limiting plate; 14. a screw; 15. a circular hole; 16. a threaded bolt; 17. and (7) a gasket.

Detailed Description

In order to make the technical means, creation features, achievement purposes and functions of the present invention easy to understand, the present invention is further described below with reference to the following embodiments.

As shown in fig. 1-3, a tower crane hook convenient to replace comprises a connecting seat 1, wherein a bearing box 2 is installed at the bottom end of the connecting seat 1, a hook 5 is installed at the bottom end of the bearing box 2, a connecting shaft 3 is installed on the inner side of the hook 5 close to the top end, a sealing rod 4 is installed on the outer side of the connecting shaft 3, sliding grooves 6 are respectively formed in two sides of the inner wall of the bearing box 2, sliding blocks 7 are respectively installed on the outer sides of the two groups of sliding grooves 6, a limiting plate 8 is installed between the two groups of sliding blocks 7, a spring 9 is installed at the bottom end of the limiting plate 8, alarms 10 are installed on the bottom end of the inner wall of the bearing box 2 close to two sides, and a fixing plate 11 is installed at the bottom end of the spring 9;

hanging rings 12 are installed on two sides of the connecting seat 1 in a penetrating mode, limiting plates 13 are installed at two ends of each hanging ring 12, screws 14 are installed on one side of each of the two groups of limiting plates 13 in a penetrating mode near the middle, round holes 15 are formed in two sides of the inner wall of the connecting seat 1 near two ends of each hanging ring 12, threaded bolts 16 penetrate through two ends of the connecting seat 1, and gaskets 17 are installed on the outer sides of the bottom ends of the threaded bolts 16;

the rubber pads are arranged at the top end of the inner side of the hanging ring 12 close to the middle part, the two ends of the hanging ring 12 are fixedly connected to the two sides of the inner wall of the connecting seat 1, the hanging ring 12 can be prevented from being directly connected with a tower crane due to the arrangement of the rubber pads, the service life of the hanging ring 12 is prolonged, the friction force can be increased, the probability of falling off during connection is reduced, and the use safety is improved;

the top end of the bearing box 2 is fixedly connected to the bottom end of the connecting seat 1, the bottom end of the bearing box 2 is fixedly connected to the top end of the hook 5, the bearing box 2 is arranged to prevent conveyed objects from exceeding a limited weight, and a prompt can be given when the weight is overweight, so that the safety of the tower crane is improved;

one end of the closing rod 4 is movably connected to one side of the connecting shaft 3, the other side of the connecting shaft 3 is fixedly connected to the inner side of the hook 5 close to the top end, and the closing rod 4 is arranged to limit when an object is hung, so that the object is prevented from sliding out of the hook 5, and the carrying safety is improved;

the two ends of the limiting plate 8 are movably connected inside the bearing box 2 through the sliding block 7 and the sliding groove 6, the bottom end of the limiting plate 8 is in contact connection with the top end of the alarm 10 by two sides, the limiting plate 8 is arranged to limit the spring 9, and the spring 9 can be reset by utilizing the characteristics of the spring 9;

the top of bearing box 2 has seted up the thread groove, and the bottom of screw bolt 16 installs the screw cap, and the bottom length of screw bolt 16 is greater than the width of connecting seat 1.

It should be noted that the utility model relates to a tower crane hook convenient for replacement, when in use, firstly, the support arm of the tower crane is connected to the rubber pad on the top end of the inner side of the hanging ring 12, the closing rod 4 is opened by the connecting shaft 3, so that one side of the hook 5 can hang objects, the bearing box 2 is fixed on the top end of the hook 5 by the fixing plate 11, when hanging objects on the hook 5, the limiting plate 8 is dragged downwards by the sliding chute 6 and the sliding block 7 due to gravity, the limiting plate 8 reaches the top end of the alarm 10 along with the more objects hung on the hook 5, the type of the alarm 10 is ASDXC-175, the alarm 10 is triggered to send out warning sound to remind workers, the weight of the objects which must be lightened is avoided from being too heavy, the damage to the hook 5 is caused, the carrying safety is improved, after the weight of the objects is lightened, the characteristic of the spring 9 utilized by the limiting plate 8 is rebounded, the alarm 10 is not triggered any more, workers can be reminded when the weight of the hook is overweight by arranging the bearing box 2, so that the use safety of the hook 5 is improved, the safety of a tower crane is improved, if the hook is damaged and needs to be maintained or cleaned, the connecting seat 1 can be separated from the top end of the bearing box 2 through the threaded bolt 16, so that the hook 5 falls off, the disassembly is convenient, the lifting ring 12 is fixed inside the connecting seat 1 through the limiting plate 13 and the screw 14, when the hook is used, the length of one end of the screw 14 is larger than the diameter of the round hole 15, a limiting effect can be achieved, two ends of the lifting ring 12 are prevented from being separated from the inside of the connecting seat 1, the use safety is improved, compared with a normal hook connecting mechanism, parts are reduced, the disassembly is convenient, convenience is provided for subsequent replacement and maintenance, and meanwhile, the gasket 17 arranged at the bottom end of the threaded bolt 16 can reduce damage to the connecting seat 1, the service life of the tower crane is prolonged, the cost is reduced, and the whole tower crane flow is completed.

The utility model discloses a fixed plate 11 fixes bearing box 2 on the top of crotch 5, when hanging the object on crotch 5, can drag limiting plate 8 downwards through spout 6 and slider 7 because of gravity, along with the object that crotch 5 hung is more, limiting plate 8 will arrive at the top of siren 10, trigger siren 10 and make it can send out the warning sound and remind the staff, the weight of the object that must alleviate, avoid the object of carrying overweight, and lead to the damage of crotch 5, and the security of carrying has been improved, after lightening the object weight, limiting plate 8 can utilize the characteristic resilience of spring 9, no longer trigger siren 10, can remind the staff when overweight through setting up bearing box 2, thereby the safety in utilization of crotch 5 has been improved, the security of tower crane has been improved; through the top that 16 break away from bearing box 2 with connecting seat 1 of screw bolt, thereby make the crotch 5 drop, it is comparatively convenient to dismantle, and pass through limiting plate 13 and screw 14 because of rings 12 and fix in the inside of connecting seat 1, when using, because of the one end length of screw 14 is greater than the diameter of round hole 15, so can play the effect of restriction, avoid rings 12's both ends to break away from the inside of connecting seat 1, safe in utilization has been increased, and compare normal lifting hook coupling mechanism, parts have been reduced, the dismantlement has been made things convenient for, convenience is provided for subsequent change and maintenance, the gasket 17 of 16 bottom installations of screw bolt can reduce the harm to connecting seat 1 simultaneously, increase its life, and the cost is reduced.

The basic principles and the main features of the invention and the advantages of the invention have been shown and described above. It will be understood by those skilled in the art that the present invention is not limited to the above embodiments, and that the foregoing embodiments and descriptions are provided only to illustrate the principles of the present invention without departing from the spirit and scope of the present invention. The scope of the invention is defined by the appended claims and equivalents thereof.

Claims

1. The utility model provides a tower crane lifting hook of convenient change which characterized in that: the alarm device comprises a connecting seat (1), wherein a bearing box (2) is installed at the bottom end of the connecting seat (1), a hook (5) is installed at the bottom end of the bearing box (2), a connecting shaft (3) is installed on the inner side of the hook (5) by the top end, a sealing rod (4) is installed on the outer side of the connecting shaft (3), sliding grooves (6) are formed in two sides of the inner wall of the bearing box (2), sliding blocks (7) are installed on the outer sides of the two groups of sliding grooves (6), a limiting plate (8) is installed between the two groups of sliding blocks (7), a spring (9) is installed at the bottom end of the limiting plate (8), alarms (10) are installed on the bottom end of the inner wall of the bearing box (2) by two sides, and a fixing plate (11) is installed at the bottom end of the spring (9);

both sides of connecting seat (1) are run through and are installed rings (12), limiting plate (13) are all installed at the both ends of rings (12), and are two sets of screw (14) are all run through to install by the middle part in one side of limiting plate (13), round hole (15) have all been seted up by the both ends of rings (12) to the inner wall both sides of connecting seat (1), threaded bolt (16) runs through at the both ends of connecting seat (1), gasket (17) are installed in the bottom outside of threaded bolt (16).

2. The tower crane hook convenient to replace according to claim 1, wherein: the top end of the inner side of the hanging ring (12) is provided with a rubber pad by the middle part, and the two ends of the hanging ring (12) are fixedly connected with the two sides of the inner wall of the connecting seat (1).

3. The tower crane hook convenient to replace according to claim 1, wherein: the top end fixed connection of bearing box (2) is in the bottom of connecting seat (1), and the bottom fixed connection of bearing box (2) is on the top of crotch (5).

4. The tower crane hook convenient to replace according to claim 1, wherein: one end of the closing rod (4) is movably connected to one side of the connecting shaft (3), and the other side of the connecting shaft (3) is fixedly connected to the inner side of the hook (5) and close to the top end.

5. The tower crane hook convenient to replace according to claim 1, wherein: the two ends of the limiting plate (8) are movably connected inside the bearing box (2) through the sliding block (7) and the sliding groove (6), and the bottom end of the limiting plate (8) is connected with the top end of the alarm (10) in a contact mode through two sides.

6. The tower crane hook convenient to replace according to claim 1, wherein: the top end of the bearing box (2) is provided with a thread groove, the bottom end of the thread bolt (16) is provided with a thread cap, and the length of the bottom end of the thread bolt (16) is larger than the width of the connecting seat (1).