CN216737187U - Tower crane hook lock and tower crane hook - Google Patents

Abstract

The utility model discloses a tower crane hook lock and a tower crane hook, comprising a lock catch ring rotationally connected to a hook tip of a tower crane hook body and a sleeve fixedly connected to a straight shank column of the tower crane hook body, wherein the sleeve is provided with a plurality of sliding grooves downwards from the top, and the plurality of sliding grooves are uniformly distributed around the circumference of the sleeve; telescopic outside cover is equipped with the elastic component, the outside cover of elastic component is equipped with the sliding sleeve, the position that the inner wall of sliding sleeve is close to the top be provided with a plurality of briquetting of a plurality of spout matched with, a plurality of briquetting are located same height, every the bottom of briquetting is pressed the top of elastic component, be provided with on the outer wall of sliding sleeve with hasp ring matched with couple works as when the elastic component is in natural state, the couple can with the hasp ring is taut. The utility model has simple structure, convenient operation and high reliability, and can effectively avoid the occurrence of operation safety accidents.

Description

Tower crane hook lock and tower crane hook

Technical Field

The utility model belongs to the technical field of tower cranes, and particularly relates to a tower crane hook lock and a tower crane hook.

Background

The lifting hook is a key part in the tower crane, the lifting hook lock is matched with the lifting hook for use, and particularly for a flat-head tower crane, the lifting hook lock on the lifting hook is a very key device for ensuring safe lifting operation. When the tower crane lifting hook lifts a heavy object, the lifting hook lock needs to be closed so as to ensure the safety and reliability of the heavy object lifting process. The presently used hook lock mainly has two structures: one is a steel sheet type spring lock, but the steel sheet type spring lock is easy to damage; the other type is a steel stick type gravity lock, but the lifting lock handle of the steel stick type gravity lock is longer, and the interference with the surrounding environment is easy to occur in the operation. In the process of lifting heavy objects, the reliability of the two hook locks is relatively poor, and operation safety accidents are easily caused.

Disclosure of Invention

Aiming at the problems in the prior art, the utility model provides a tower crane hook lock and a tower crane hook, which have the advantages of simple structure, convenience in operation and high reliability, and can effectively avoid the occurrence of operation safety accidents.

In order to solve the technical problems, the utility model is realized by the following technical scheme:

a tower crane hook lock comprises a lock catch ring rotationally connected to a hook tip of a tower crane hook body and a sleeve fixedly connected to a straight shank column of the tower crane hook body, wherein a plurality of sliding grooves are formed in the sleeve from top to bottom and are uniformly distributed in the circumferential direction of the sleeve; telescopic outside cover is equipped with the elastic component, the outside cover of elastic component is equipped with the sliding sleeve, the position that the inner wall of sliding sleeve is close to the top be provided with a plurality of briquetting of a plurality of spout matched with, a plurality of briquetting are located same height, every the bottom of briquetting is pressed the top of elastic component, be provided with on the outer wall of sliding sleeve with hasp ring matched with couple works as when the elastic component is in natural state, the couple can with the hasp ring is taut.

Furthermore, a limiting plate used for limiting the displacement of the sliding sleeve is further arranged on the straight handle column, and the limiting plate is located above the top of the sliding sleeve.

Further, the bottom of sleeve still is provided with outer along the circumference and follows the board, the lower extreme of elastic component supports and is in outer up end that follows the board.

Furthermore, a through hole is formed in the hook tip, and the lock catch ring is rotatably connected in the through hole.

Furthermore, the hook is positioned on the outer wall of the sliding sleeve and opposite to the hook tip.

Further, the sleeve is connected with the straight handle column in an interference fit mode.

Further, a jacking bolt is adopted to jack the sleeve on the straight handle column.

Further, the elastic member is a spring.

The tower crane hook comprises a tower crane hook body, wherein the tower crane hook body is provided with a tower crane hook lock.

Compared with the prior art, the utility model at least has the following beneficial effects: when the tower crane hook lock provided by the utility model is used, the tower crane hook lock is arranged on a tower crane hook body, when a heavy object is hung in the tower crane hook body and needs to be locked, only a downward pressure needs to be applied to the sliding sleeve, so that the sliding sleeve and the hook on the sliding sleeve move downwards together, the pressing block on the sliding sleeve further compresses the elastic piece downwards along the sliding groove, after the hook moves downwards to a certain position, the lock catch ring is turned upwards to be clamped in the hook, then, the downward pressure applied to the sliding sleeve only needs to be cancelled, the elastic piece recovers deformation at the moment, the pressing block on the sliding sleeve is further pushed to enable the sliding sleeve to move upwards, the sliding sleeve is pushed upwards under the elastic force of the elastic piece, the lock catch ring can be tensioned, and the tower crane hook body is locked. When the heavy object of needs uninstallation was unblock tower machine lifting hook body, only need apply a decurrent pressure for the sliding sleeve again for the couple on sliding sleeve and the sliding sleeve downstream together, and then make the briquetting on the sliding sleeve compress the elastic component downwards along the spout, after couple downstream a certain position, overturn downwards with the snap ring and make it break away from with the couple, can accomplish the unblock. Therefore, the tower crane hook lock provided by the utility model has the advantages of simple structure, convenience in operation and high reliability, can be easily completed by applying downward pressure to the sliding sleeve when locking or unlocking is required, is not easy to break in actual work, can effectively avoid the occurrence of operation safety accidents, can save time and labor, has very good practicability, and can improve the working efficiency.

Furthermore, the limiting plate for limiting the displacement of the sliding sleeve is arranged on the straight handle column, the limiting plate is positioned above the top of the sliding sleeve, and the limiting plate can ensure that the sliding sleeve cannot be separated from the elastic part on the premise of not influencing the vertical sliding of the sliding sleeve, so that the reliability of the structure is ensured.

Furthermore, the bottom of the sleeve is also provided with an outer edge plate along the circumferential direction, and the outer edge plate is utilized to provide a supporting surface for the lower end of the elastic part, so that the reliability of the structure is better ensured. .

Furthermore, the hook point is provided with the through hole, the lock catch ring is rotatably connected in the through hole, and the connecting structure is good in reliability and convenient to operate.

Furthermore, the hook is positioned at the position opposite to the hook tip on the outer wall of the sliding sleeve, so that the connection between the lock catch ring and the hook is facilitated.

Furthermore, the sleeve and the straight shank column are connected in an interference fit mode, and the connection is simple and convenient.

Further, adopt the puller bolt to tightly push up the sleeve on straight handle post, be convenient for mediate telescopic high position, and then can mediate the locking degree of hasp ring.

Furthermore, the elastic part adopts a spring, so that the cost is low.

In order to make the aforementioned and other objects, features and advantages of the present invention comprehensible, preferred embodiments accompanied with figures are described in detail below.

Drawings

In order to more clearly illustrate the technical solutions in the embodiments of the present invention, the drawings used in the description of the embodiments will be briefly introduced below, and it is obvious that the drawings in the following description are some embodiments of the present invention, and it is obvious for those skilled in the art that other drawings can be obtained according to the drawings without creative efforts.

FIG. 1 is a schematic view of the integral locking state of a tower crane hook lock of the present invention after being arranged on a tower crane hook body;

FIG. 2 is a schematic structural view of a tower crane hook body;

FIG. 3 is an exploded view of the sleeve, the elastic member and the sliding sleeve in the hook lock of the tower crane according to the present invention;

FIG. 4 is a schematic structural view of a shackle in a tower crane hook lock according to the present invention;

fig. 5 and 6 are schematic views of the construction of the shackle of the embodiment.

In the figure: 1-a tower crane hook body; 101-hook tip; 102-straight shank; 2-a sleeve; 201-a chute; 202-outer edge plate; 3-an elastic member; 4-a sliding sleeve; 401-briquetting; 402-a hook; 5-a locking ring; 6-a limiting plate; 7-through holes.

Detailed Description

To make the objects, technical solutions and advantages of the embodiments of the present invention clearer, the technical solutions of the present invention will be clearly and completely described below with reference to the accompanying drawings, and it is apparent that the described embodiments are some, but not all embodiments of the present invention. All other embodiments, which can be obtained by a person skilled in the art without making any creative effort based on the embodiments in the present invention, belong to the protection scope of the present invention.

As a specific embodiment of the present invention, referring to fig. 1, fig. 2, fig. 3 and fig. 4, a tower crane hook lock includes a lock catch ring 5 rotatably connected to a hook tip 101 of a tower crane hook body 1 and a sleeve 2 fixedly connected to a straight shank 102 of the tower crane hook body 1, specifically, as shown in fig. 2, a through hole 7 is formed in the hook tip 101, and the lock catch ring 5 is rotatably connected in the through hole 7 after passing through the through hole 7. Preferably, the sleeve 2 is connected with the straight shank 102 in an interference fit manner, or the sleeve 2 is tightly pressed on the straight shank 102 by using a pressing bolt, and of course, other fixing manners may be adopted for connection.

Referring to fig. 3, a plurality of sliding grooves 201 are formed in the sleeve 2 from the top to the bottom, and the sliding grooves 201 are uniformly distributed around the circumference of the sleeve 2, in this embodiment, three sliding grooves 201 are formed in the sleeve 2 from the top to the bottom, that is, a circumferential included angle of the three sliding grooves 201 is 120 °. The elastic element 3 is sleeved outside the sleeve 2, preferably, an outer edge plate 202 is arranged at the bottom of the sleeve 2 along the circumferential direction, the lower end of the elastic element 3 abuts against the upper end face of the outer edge plate 202, and in this embodiment, the elastic element 3 is a spring.

Referring to fig. 3, a sliding sleeve 4 is sleeved outside the elastic member 3, a plurality of pressing blocks 401 matched with the plurality of sliding grooves 201 are arranged at positions, close to the top, of the inner wall of the sliding sleeve 4, and the plurality of pressing blocks 401 are located at the same height. The bottom of every briquetting 401 is pressed at the top of elastic component 3, and when exerting decurrent external force for sliding sleeve 4, sliding sleeve 4 downstream, and then make briquetting 401 on sliding sleeve 4 compress elastic component 3 downwards, when the decurrent external force that applys on sliding sleeve 4 disappears, elastic component 3 resumes deformation, and then promotes briquetting 401 on sliding sleeve 4 and makes sliding sleeve 4 upward movement. The outer wall of the sliding sleeve 4 is provided with a hook 402 which is matched with the latch ring 5, that is, the latch ring 5 can be clamped on the hook 402, and preferably, the hook 402 is located at a position opposite to the hook tip 101 on the outer wall of the sliding sleeve 4. When elastic member 3 is in its natural state (i.e., the sliding sleeve 4 is not under downward pressure), hooks 402 can tension carabiner 5.

As a more preferable embodiment, as shown in fig. 1, a limit plate 6 for limiting the displacement of the sliding sleeve 4 is further disposed on the stem 102, the limit plate 6 is located above the top of the sliding sleeve 4, and the limit plate 6 can be connected to the stem 102 by a threaded connection. The limiting plate 6 can ensure that the sliding sleeve 4 cannot be separated from the elastic part 3 while ensuring that the sliding sleeve 4 cannot be influenced to move up and down.

As shown in fig. 5 and 6, the locking ring 5 of the present invention has various forms, which may be a combination type or a welding type, and the form is not limited.

As shown in fig. 1, the utility model also provides a tower crane hook, which comprises a tower crane hook body 1, wherein the tower crane hook lock designed by the utility model is arranged on the tower crane hook body 1.

The working principle of the utility model is as follows: when tower machine lifting hook body 1 need be locked, exert a decurrent pressure for sliding sleeve 4, make sliding sleeve 4 and the couple 402 on the sliding sleeve 4 downstream together, and then make briquetting 401 on the sliding sleeve 4 compress elastic component 3 downwards along spout 201, after couple 402 downstream to a certain position, upwards overturn hasp ring 5 and make its block in couple 402, then, cancel the decurrent pressure of exerting for sliding sleeve 4, elastic component 3 resumes deformation this moment, and then promote briquetting 401 on the sliding sleeve 4 and make sliding sleeve 4 upward movement, with sliding sleeve 4 upwards top under elastic component 3's elastic force effect tightly and then realize locking hasp ring 5. When tower machine lifting hook body 1 needs the unblock, exert a decurrent pressure for sliding sleeve 4 again for the couple 402 on sliding sleeve 4 and the sliding sleeve 4 downstream together, and then make briquetting 401 on the sliding sleeve 4 compress elastic component 3 along spout 201 downwards, after couple 402 downstream a certain position, with hasp ring 5 upset downwards make it break away from with couple 402 can.

Due to the adoption of the reliable hook lock, when the problem that the opening degree of the hook is too large due to the long-time use of the hook exceeds 10% of the original new hook, a constructor can be reminded to replace the hook in time, so that safety accidents are avoided.

Finally, it should be noted that: although the present invention has been described in detail with reference to the foregoing embodiments, it should be understood by those skilled in the art that the following descriptions are only illustrative and not restrictive, and that the scope of the present invention is not limited to the above embodiments: any person skilled in the art can modify or easily conceive the technical solutions described in the foregoing embodiments or equivalent substitutes for some technical features within the technical scope of the present disclosure; such modifications, changes or substitutions do not depart from the spirit and scope of the embodiments of the present invention, and they should be construed as being included therein. Therefore, the protection scope of the present invention shall be subject to the protection scope of the claims.

Claims (9)

1. The tower crane hook lock is characterized by comprising a lock catch ring (5) rotatably connected to a hook tip (101) of a tower crane hook body (1) and a sleeve (2) fixedly connected to a straight shank column (102) of the tower crane hook body (1), wherein a plurality of sliding grooves (201) are formed in the sleeve (2) from top to bottom, and the sliding grooves (201) are uniformly distributed around the circumference of the sleeve (2); elastic component (3) are established to the outside cover of sleeve (2), the outside cover of elastic component (3) is equipped with sliding sleeve (4), the position that the inner wall of sliding sleeve (4) is close to the top be provided with a plurality of spouts (201) matched with briquetting (401), a plurality of briquetting (401) are located same height, every the bottom pressure of briquetting (401) is in the top of elastic component (3), be provided with on the outer wall of sliding sleeve (4) with hasp ring (5) matched with couple (402), work as when elastic component (3) are in natural state, couple (402) can with hasp ring (5) are taut.

2. The tower crane hook lock according to claim 1, wherein a limiting plate (6) for limiting the displacement of the sliding sleeve (4) is further arranged on the straight shank column (102), and the limiting plate (6) is located above the top of the sliding sleeve (4).

3. A tower crane hook lock according to claim 1, characterized in that the bottom of the sleeve (2) is further provided with an outer edge plate (202) along the circumferential direction, and the lower end of the elastic member (3) abuts against the upper end face of the outer edge plate (202).

4. The tower crane hook lock according to claim 1, wherein the hook tip (101) is provided with a through hole (7), and the locking ring (5) is rotatably connected in the through hole (7).

5. A tower crane hook lock according to claim 1, characterized in that the hook (402) is located at a position where the outer wall of the sliding sleeve (4) is directly opposite to the hook tip (101).

6. A tower crane hook lock according to claim 1, characterized in that the sleeve (2) is connected with the straight shank column (102) by interference fit.

7. A tower crane hook lock according to claim 1, characterized in that the sleeve (2) is tightened against the straight shank post (102) with a tightening bolt.

8. A tower crane hook lock according to claim 1, characterized in that the resilient member (3) is a spring.

9. A tower crane lifting hook, characterized in that, includes tower crane lifting hook body (1), be provided with on tower crane lifting hook body (1) as in any one of claims 1 to 8 a tower crane lifting hook lock.

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