CN215439296U

CN215439296U - Tower crane lifting hook rope breakage protection device, tower crane lifting hook assembly and tower crane

Info

Publication number: CN215439296U
Application number: CN202120890679.1U
Authority: CN
Inventors: 张中明; 吴家瑜
Original assignee: Wuhan Construction Engineering Equipment Co ltd
Current assignee: Wuhan Construction Engineering Equipment Co ltd
Priority date: 2021-04-25
Filing date: 2021-04-25
Publication date: 2022-01-07
Anticipated expiration: 2031-04-25

Abstract

The utility model discloses a rope breakage protection device for a tower crane lifting hook, a tower crane lifting hook assembly and a tower crane, which comprise a clamping module and an anti-falling module, wherein the clamping module comprises a rectangular plate, two supporting plates in contact with the rectangular plate, and a connecting rod arranged between the two supporting plates and positioned on the outer side of the rectangular plate, part of the rectangular plate is fixedly connected to the lifting hook, the top of the lifting hook penetrates through the rectangular plate to be connected with a rope body, and the anti-falling module comprises a second opening arranged on the rectangular plate and a folded plate arranged between the two supporting plates and symmetrical about the vertical center line of the rectangular plate. According to the utility model, a heavy object is hung on the lifting hook, when the rope body is separated from the lifting hook, the rope body pulls the connecting belt through the circular plate, the connecting belt pulls the inner side of the folded plate upwards, the inner side of the folded plate is matched with the second opening, the rectangular plate with the lifting hook is firmly fixed between the two supporting plates, the contact area between the rope body and the lifting hook is increased, and the falling probability of the lifting hook is reduced.

Description

Tower crane lifting hook rope breakage protection device, tower crane lifting hook assembly and tower crane

Technical Field

The utility model relates to the technical field of tower crane equipment, in particular to a rope breakage protection device for a tower crane lifting hook, a tower crane lifting hook assembly and a tower crane.

Background

In the actual operation process of the tower crane, the situation that the lifting height limiter fails due to the fact that the height limiter is not adjusted, missed or in other situations exists, and a driver cannot stop the lifting motion of the lifting hook in time. At the moment, the top of the lifting hook device collides with the bottom of the trolley frame (also called top impact), and the lifting steel wire rope is broken due to the top impact, so that the lifting hook together with a lifted heavy object falls from a high place.

When the rope breakage protection device is used, the contact area of the connection part of the rope body and the lifting hook is small, so that the lifting hook is easy to break off with the lifting hook after a heavy object is hooked on the lifting hook.

SUMMERY OF THE UTILITY MODEL

The present invention is directed to solving one of the technical problems of the prior art or the related art.

Therefore, the technical scheme adopted by the utility model is as follows:

the rope breakage protection device for the tower crane lifting hook comprises a clamping module and a falling-preventing module, wherein the clamping module comprises a rectangular plate, two supporting plates in contact with the rectangular plate, a connecting rod arranged between the two supporting plates and positioned outside the rectangular plate, part of the rectangular plate is fixedly connected to the lifting hook, the top of the lifting hook penetrates through the rectangular plate to connect a rope body, the falling-preventing module comprises a second opening arranged on the rectangular plate, a folded plate arranged between the two supporting plates and symmetrical about the vertical center line of the rectangular plate, a connecting band connected to the folded plate and a circular plate fixedly connected to the connecting band, two cross rods are arranged between the two supporting plates, the two folded plates are respectively sleeved outside the two cross rods, when the rope body is separated from the lifting hook, the folded plate rotates in the second opening around the cross rod, and the second opening is used for limiting the rotating range of the folded plate, preventing the rope body and the lifting hook from further falling off.

Preferably, the clamping module further comprises a plurality of sleeves, and the plurality of sleeves are respectively sleeved on the outer sides of the plurality of connecting rods.

Preferably, the flap extends inwardly through the rectangular panel and into the second opening, the flap outer wall contacting the second opening inner wall.

Preferably, the circular plate is located between the two support plates and is in contact with the inner side of the support plates.

Preferably, the folded plate is composed of two flat plates and an inclined plate, and the two flat plates are respectively arranged on two sides of the inclined plate.

Preferably, the support plate is trapezoidal, and the diameter of the top of the trapezoid is larger than that of the bottom of the trapezoid.

Preferably, the tower crane lifting hook rope breakage protection device further comprises a second opening formed in the supporting plate, and the shape of the second opening is consistent with that of the rectangular plate.

According to another aspect of the utility model, there is provided a tower crane hook assembly comprising: rope body, with the lifting hook and the disconnected rope protection device of above-mentioned tower crane lifting hook that the rope body is connected.

According to another aspect of the utility model, a tower crane is provided, which comprises the tower crane hook assembly.

By adopting the technical scheme, the utility model has the beneficial effects that:

hanging a heavy object on a tower crane hook, wherein when the rope body is separated from the hook, the rope body pulls the connecting belt through a circular plate, the connecting belt pulls the inner side of the folded plate upwards, the inner side of the folded plate is matched with the second opening, the rectangular plate with the hook is firmly fixed between the two supporting plates, the contact area between the rope body and the hook is increased, and the falling probability of the hook is reduced; simultaneously, the backup pad can be taken off from the connecting rod to the accessible through unscrewing a plurality of sleeves of single backup pad one side, then the part of clamping module and anti-falling module exposes completely, adopts this structural design, brings the convenience for loading and unloading, maintenance operation.

Drawings

FIG. 1 is an overall structure diagram of the rope breakage protection device for the tower crane hook of the utility model;

FIG. 2 is a perspective view of the overall structure of the present invention with the front support plate removed;

FIG. 3 is a front cross-sectional view of the integral tower crane hook rope breakage protection device of the present invention;

fig. 4 is a perspective view of the support plate of the present invention.

Reference numerals:

110. a rope body; 120. a hook;

200. a clamping module; 210. a rectangular plate; 220. a support plate; 230. a connecting rod; 240. a sleeve; 250. a first opening; 300. an anti-drop module; 310. a second opening; 320. folding the plate; 330. a connecting belt; 340. a circular plate.

Detailed Description

In order to make the objects, technical solutions and advantages of the present invention more apparent, the present invention will be described in further detail with reference to the accompanying drawings in conjunction with the following detailed description. It should be noted that the embodiments of the present invention and features of the embodiments may be combined with each other without conflict.

It is to be understood that this description is made only by way of example and not as a limitation on the scope of the utility model.

The following describes a rope breakage protection device for a tower crane hook provided by some embodiments of the utility model with reference to the accompanying drawings.

The first embodiment is as follows:

referring to fig. 1 to 4, the utility model provides a rope breakage protection device for a tower crane hook, which comprises:

the clamping module 200 comprises a rectangular plate 210, two supporting plates 220 in contact with the rectangular plate 210, and a connecting rod 230 arranged between the two supporting plates 220 and positioned outside the rectangular plate 210; the rectangular plate 210 is partially fixed on the hook 120, and the top of the hook 120 penetrates through the rectangular plate 210 to be connected with the rope body 110; the second opening 250 formed at the inner side of the supporting plate 220 in the clamping module 200 can fix the supporting plate 220 with the hook 120, wherein the hook 120 indirectly improves the firmness;

the anti-falling module 300 comprises a second opening 310 opened on the rectangular plate 210, a flap 320 installed between the two support plates 220 and symmetrical about a vertical center line of the rectangular plate 210, a connection strap 330 connected to the flap 320, and a circular plate 340 fixedly connected to the connection strap 330; two cross rods are arranged between the two supporting plates 220, and the two folded plates 320 are respectively sleeved on the outer sides of the two cross rods; in other embodiments, the cross bar can be replaced by a damping rotating shaft, and in addition, the cross bar can support the folded plate 320 and can also support the two supporting plates 220 in the two supporting plates 220, so that the deformation probability of the supporting plates 220 is reduced;

when the rope 110 is disengaged from the hook 120, the flap 320 rotates around the cross bar in the second opening 310, and the second opening 310 is used for limiting the rotation range of the flap 320 and preventing the rope 110 from further falling off from the hook 120; in other embodiments, a chain may be used instead of the connecting strap 330, and the rope 110 separated from the hook 120 is pulled up through the circular plate 340 and the connecting strap 330, and the inner end of the flap 320 is engaged with the first opening 250, thereby preventing the rope 110 from being directly separated from the hook 120.

Specifically, the clamping module 200 further includes a plurality of sleeves 240, the plurality of sleeves 240 are respectively sleeved outside the plurality of connecting rods 230, in other embodiments, the sleeves 240 may further be replaced by nuts, the sleeves 240 are connected with the connecting rods 230 in a threaded connection manner, meanwhile, the sleeves 240 may be connected in a welding manner, unlike the threaded connection manner, looseness may occur along with the extension of the service life, the sleeves 240 may clamp the two supporting plates 220, the rectangular plate 210 connected with the hook 120 is prevented from falling between the two supporting plates 220, and the weight added by the rectangular plate 210 and the hook 120 is completely supported by the supporting plate 220 connected with the external device, so that the pressure applied to the rope 110 by the weight of the rectangular plate 210 and the hook 120 is reduced, and the probability of separation of the rope 110 from the hook 120 is reduced.

Further, the inner side of the folded plate 320 penetrates through the rectangular plate 210 and extends into the second opening 310, the outer wall of the folded plate 320 contacts with the inner wall of the second opening 310, the folded plate 320 is composed of two flat plates and an inclined plate, the two flat plates are respectively installed on two sides of the inclined plate, the folded plate 320 composed of the flat plates and the inclined plate can better fit with the second opening 310, the inner sides of the two folded plates 320 are upwards tilted to clamp the rectangular plate 210 connected with the hook 120, the contact area between the rope body 110 and the hook 120 is increased under the matching of the folded plate 320, the connecting belt 330 and the circular plate 340, and therefore the probability that the rope body 110 is separated from the hook 120 is reduced.

Example two:

with reference to fig. 1-4, on the basis of the first embodiment, the supporting plate 220 is configured to be a trapezoid, the diameter of the top of the trapezoid is larger than the diameter of the bottom of the trapezoid, in other embodiments, the supporting plate 220 may also be in a frame shape, and the trapezoid-shaped supporting plate 220 improves the aesthetic property of the present invention.

Example three:

with reference to fig. 4, in the above embodiment, the rope breakage protection device for the tower crane hook further includes a second opening 310 formed in the support plate 220, the shape of the second opening 310 is identical to that of the rectangular plate 210, the rectangular plate 210 can be limited by forming the second opening 310, the probability that the rectangular plate 210 drops from between the two support plates 220 is reduced, and the overall structure is more stable.

Example four:

the utility model also provides a tower crane hook component, which comprises: the lifting hook comprises a rope body 110, a lifting hook 120 connected with the rope body 110 and the rope breakage protection device for the tower crane lifting hook.

Example five:

the utility model also provides a tower crane which comprises the tower crane hook component.

The working principle and the using process of the utility model are as follows: when the utility model is put into practical use, a heavy object is hung on the hook 120 at first, when the rope body 110 is separated from the hook 120 in a hoisting operation, the rope body 110 pulls the connecting band 330 through the circular plate 340, the connecting band 330 transmits the received force to the folded plate 320, the folded plate 320 rotates around the cross rod, the inner sides of the two folded plates 320 are tilted, the flat plate part of the folded plate 320 and the second opening 310 are limited mutually, and the rectangular plate 210 with the hook is firmly fixed between the two supporting plates 220, so that the falling probability of the hook 120 is reduced, when parts between the two supporting plates 220 are damaged, the sleeve 240 only needs to be unscrewed, and the single supporting plate 220 is taken down, so that the parts in the clamping module 200 and the falling prevention module 300 can be completely exposed, and the utility model is convenient for assembling, disassembling and maintaining operations.

In the present invention, the term "plurality" means two or more unless explicitly defined otherwise. As used herein, the term "and/or" includes any and all combinations of one or more of the associated listed items. The terms "mounted," "connected," "fixed," and the like are to be construed broadly, and for example, "connected" may be a fixed connection, a removable connection, or an integral connection; "coupled" may be direct or indirect through an intermediary. The specific meanings of the above terms in the present invention can be understood by those skilled in the art according to specific situations.

It will be understood that when an element is referred to as being "mounted to," "secured to" or "disposed on" another element, it can be directly on the other element or intervening elements may also be present. When an element is referred to as being "connected" to another element, it can be directly connected to the other element or intervening elements may also be present. The terms "vertical," "horizontal," "upper," "lower," "left," "right," and the like as used herein are for illustrative purposes only and do not denote a unique embodiment.

In the description herein, the description of the terms "one embodiment," "some embodiments," "specific embodiments," etc., means that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the utility model. In this specification, the schematic representations of the terms used above do not necessarily refer to the same embodiment or example. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples.

Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the utility model, the scope of which is defined in the claims and their equivalents.

Claims

1. Tower crane lifting hook protection device that restricts absolutely, its characterized in that includes:

the clamping module (200) comprises a rectangular plate (210), two supporting plates (220) in contact with the rectangular plate (210), and a connecting rod (230) which is arranged between the two supporting plates (220) and is positioned on the outer side of the rectangular plate (210);

the rectangular plate (210) is partially fixedly connected to the lifting hook (120), and the top of the lifting hook (120) penetrates through the rectangular plate (210) to be connected with the rope body (110);

the anti-falling module (300) comprises a second opening (310) arranged on the rectangular plate (210), a folded plate (320) which is arranged between the two supporting plates (220) and is symmetrical about the vertical central line of the rectangular plate (210), a connecting belt (330) connected to the folded plate (320), and a circular plate (340) which is fixedly connected to the connecting belt (330) and fixedly sleeved on the rope body (110);

two cross rods are arranged between the two supporting plates (220), and the two folded plates (320) are respectively sleeved on the outer sides of the two cross rods;

when the rope body (110) is disengaged from the hook (120), the flap (320) rotates around the cross rod in the second opening (310), and the second opening (310) is used for limiting the rotation range of the flap (320) and preventing the rope body (110) from further falling off from the hook (120).

2. The tower crane hook rope breakage protection device of claim 1, wherein the clamping module (200) further comprises a plurality of sleeves (240), and the plurality of sleeves (240) are respectively sleeved on the outer sides of the plurality of connecting rods (230).

3. The tower crane hook rope breakage protection device of claim 1, wherein the inner side of the folded plate (320) penetrates through the rectangular plate (210) and extends into the second opening (310), and the outer wall of the folded plate (320) is in contact with the inner wall of the second opening (310).

4. The tower crane hook rope breakage protection device according to claim 1, wherein the circular plate (340) is located between two support plates (220) and is in contact with the inner sides of the support plates (220).

5. The rope breakage protection device for the tower crane lifting hook according to claim 1, wherein the folded plate (320) is composed of two flat plates and an inclined plate, and the two flat plates are respectively arranged on two sides of the inclined plate.

6. The tower crane lifting hook rope breakage protection device of claim 1, wherein the support plate (220) is trapezoidal, and the diameter of the top of the trapezoid is larger than that of the bottom of the trapezoid.

7. The rope breakage protection device for the tower crane hook according to any one of claims 1 to 6, further comprising a first opening (250) formed in the support plate (220), wherein the shape of the first opening (250) is consistent with that of the rectangular plate (210).

8. A tower crane hook component, its characterized in that, it includes: a rope body (110), a hook (120) connected with the rope body and the tower crane hook rope breakage protection device of claim 7.

9. A tower crane comprising the tower crane hook assembly of claim 8.