Anti-falling locking mechanism of crane hook

Abstract

The utility model discloses an anti-falling locking mechanism of a crane hook, and relates to the technical field of cranes. Comprising a connector and a lifting hook, a first arc-shaped circular pipe is fixed to the side face of the tail end of the lifting hook, a second arc-shaped circular pipe is fixed to the top of the lifting hook, an arc-shaped inserting rod is movably inserted into the first arc-shaped circular pipe, and the arc-shaped inserting rod is matched with an inner cavity of the second arc-shaped circular pipe. The lifting hook is provided with the first arc-shaped circular pipe, the second arc-shaped circular pipe, the arc-shaped inserting rod and the anti-falling locking piece, the arc-shaped inserting rod inserted into the inner cavity of the second arc-shaped circular pipe is fixed through the anti-falling locking piece, and the first arc-shaped circular pipe and the second arc-shaped circular pipe are both fixed to the outer side of the lifting hook, so that the inner space of the lifting hook cannot be occupied; therefore, the lifting hook can lift a lifting belt with a larger size, and the application range of the device is expanded.

Description

Technical Field

[0001] This utility model relates to the field of crane technology, specifically to an anti-detachment locking mechanism for a crane hook. Background Technology

[0002] Cranes are a general term for mechanical equipment that can lift, move, and transport materials and personnel. Among them, beam cranes are cranes composed of a bridge frame and a trolley. The bridge frame moves longitudinally along the ground track, and the trolley moves laterally along the bridge frame. The crane lifts the goods by means of a hook.

[0003] Chinese utility model patent, authorization announcement number CN219259322U, discloses a crane hook, including a hook body. A fixing rod is longitudinally fixed to the middle part of the hook body. One end of the fixing rod is provided with a connecting plate for connecting with the crane boom. Anti-detachment components are symmetrically arranged on the fixing rod about the center of the fixing rod. The anti-detachment components are used to close the opening of the hook body to prevent the heavy object from detaching.

[0004] The above solution solves the technical problems mentioned in the background art, but in practical applications, the above solution still has certain defects. For example, the anti-detachment plate in the above solution rotates inside the hook, which will occupy the internal space of the hook. This makes it easy for the hook to obstruct the reset of the anti-detachment plate when installing a large-sized sling. Utility Model Content

[0005] The purpose of this utility model is to provide an anti-detachment locking mechanism for crane hooks to solve the problems mentioned in the background art.

[0006] To achieve the above objectives, this utility model provides the following technical solution: an anti-detachment locking mechanism for a crane hook, comprising a connector and a hook, wherein a first arc-shaped tube is fixed to the side of the hook tail end, and a second arc-shaped tube is fixed to the top of the hook, wherein an arc-shaped insert is movably inserted into the first arc-shaped tube, the arc-shaped insert being adapted to the inner cavity of the second arc-shaped tube, and the arc centers of the first arc-shaped tube, the second arc-shaped tube, and the arc-shaped insert coincide;

[0007] A locking device is provided on one side of the second arc-shaped tube to fix the arc-shaped insert and the second arc-shaped tube.

[0008] Preferably, the outer side of the first arc-shaped tube is provided with a movable groove, and a pull rod is fixed at the bottom of the arc-shaped insert rod, the pull rod being adapted to the movable groove.

[0009] Preferably, a magnet is fixed to the bottom wall of the first arc-shaped tube, and the magnet attracts the first arc-shaped tube.

[0010] Preferably, the anti-detachment locking component includes insertion holes formed on the arc-shaped insertion rod body and the second arc-shaped round tube body, and at least one vertical plate is fixed at the bottom end of the connector. An insertion shaft is movably inserted into the plate body of the vertical plate, and the insertion shaft is adapted to the insertion hole.

[0011] A connecting plate is fixed to the end of the insertion shaft, and a first spring is fixed between the connecting plate and the vertical plate.

[0012] Preferably, the ends of the arc-shaped insert rod and the insert shaft are both formed with curved surfaces.

[0013] Preferably, a side plate is fixed to the side of the vertical plate, and an irregular groove is opened on the side plate body of the vertical plate. A push block is movably connected in the irregular groove, and a second spring is fixed between the side plate and the push block.

[0014] A top block is fixed to the top of the connecting plate, and inclined surfaces are formed on the opposite sides of the push block and the top block;

[0015] A pull rope is connected to the side of the push block, and a guide block is fixed to the top side of the hook. The pull rope is movably connected to the guide block.

[0016] A guide plate is fixed to the bottom of the connector, and a connecting rope is fixed to one side of the pull rope. The connecting rope is movably connected to the guide plate, and a lifting head is fixed to the end of the connecting rope.

[0017] Compared with the prior art, the beneficial effects of this utility model are:

[0018] The anti-detachment locking mechanism of the crane hook is equipped with a first arc-shaped tube, a second arc-shaped tube, an arc-shaped insert rod, and an anti-detachment locking component. The anti-detachment locking component fixes the arc-shaped insert rod inserted into the inner cavity of the second arc-shaped tube. Since the first arc-shaped tube and the second arc-shaped tube are both fixed on the outside of the hook, they do not occupy the internal space of the hook, allowing the hook to lift larger slings and expanding the applicability of this device.

[0019] Meanwhile, a top block, a push block, and a pull rope are also provided. When it is necessary to release the anti-loosening locking device from limiting the arc-shaped plug, the operator pulls the lifting head by hand and pulls the push block through the pull rope until the plug shaft is disengaged from the insertion hole on the arc-shaped plug body. At this time, the pull rod is pulled in the opposite direction until the arc-shaped plug is retracted into the inner cavity of the first arc-shaped tube, which can effectively speed up the contact limiting speed of the arc-shaped plug and further improve the practicality of the device. Attached Figure Description

[0020] Figure 1 This is the left-side axial view of the present invention;

[0021] Figure 2 This is a right rear axial view of the present invention;

[0022] Figure 3 This is an axial view of the present invention after it has been delaminated.

[0023] Figure 4 This is a half-sectional view of the present invention;

[0024] Figure 5 This is a detailed drawing of the anti-loosening locking component of this utility model.

[0025] In the diagram: 101, connector; 102, hook; 2, first arc-shaped tube; 201, movable groove; 3, second arc-shaped tube; 4, arc-shaped insert rod; 401, pull rod; 5, anti-detachment locking component; 501, vertical plate; 502, connecting plate; 503, insert shaft; 504, first spring; 601, side plate; 602, top block; 603, push block; 604, second spring; 605, inclined plane; 607, pull rope; 608, guide block; 609, guide plate; 610, connecting rope; 611, lifting head; 7, magnet block. Detailed Implementation

[0026] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0027] Example 1: As Figures 1-3 As shown, this utility model provides a technical solution: an anti-detachment locking mechanism for a crane hook, including a connector 101 and a hook 102. The connector 101 is fixed to the crane boom via a cable. A sling is hung on the hook 102 for lifting goods. A first arc-shaped tube 2 is fixed to the side of the tail end of the hook 102, and a second arc-shaped tube 3 is fixed to the top of the hook 102. An arc-shaped insert 4 is movably inserted into the first arc-shaped tube 2, and the arc-shaped insert 4 is adapted to the inner cavity of the second arc-shaped tube 3. It should be noted that the arc centers of the first arc-shaped tube 2, the second arc-shaped tube 3, and the arc-shaped insert 4 coincide. Thus, after the arc-shaped insert 4 is pulled out, it can be inserted into the second arc-shaped tube 3.

[0028] To facilitate the movement of the arc-shaped insert 4, such as Figure 3 As shown, a movable groove 201 is provided on the outer side of the first arc-shaped tube 2, and a pull rod 401 is fixed at the bottom of the arc-shaped insert 4. The pull rod 401 is adapted to the movable groove 201, so that the arc-shaped insert 4 can be moved by pulling the pull rod 401.

[0029] To prevent the arc-shaped insert 4 from shifting when using the device, such as Figure 4As shown, a magnet 7 is fixed to the bottom wall of the first arc-shaped tube 2, and the magnet 7 is attracted to the first arc-shaped tube 2, that is, the first arc-shaped tube 2 is made of magnetic metal.

[0030] An anti-disengagement locking element 5 is provided on one side of the second arc-shaped tube 3 to fix the arc-shaped insert rod 4 and the second arc-shaped tube 3.

[0031] Specifically, such as Figure 3 and Figure 5 As shown, the anti-disengagement locking component 5 includes insertion holes on the body of the arc-shaped insert rod 4 and the body of the second arc-shaped tube 3. At least one vertical plate 501 is fixed at the bottom end of the connector 101. An insertion shaft 503 is movably inserted into the body of the vertical plate 501, and the insertion shaft 503 is adapted to the insertion hole. In this solution, in order to improve the connection stability between the arc-shaped insert rod 4 and the second arc-shaped tube 3, the number of vertical plates 501 is set to two, which are symmetrically distributed on both sides of the second arc-shaped tube 3. A connecting plate 502 is fixed at the end of the insertion shaft 503. A first spring 504 is fixed between the connecting plate 502 and the vertical plate 501, and the insertion shaft 503 is located in the spiral ring of the first spring 504. In order to facilitate the insertion shaft 503 to be quickly inserted into the insertion hole, curved surfaces are formed at the ends of the arc-shaped insert rod 4 and the insertion shaft 503.

[0032] Example 2: To facilitate the rapid separation of the arc-shaped insert 4 and the second arc-shaped tube 3, based on Example 1, as follows... Figure 3 and Figure 5 As shown, a side plate 601 is fixed to the side of the vertical plate 501, and an irregular groove is formed on the side plate of the vertical plate 501. A push block 603 is movably connected in the irregular groove. Specifically, in this embodiment, the irregular groove is a Chinese character groove or a dovetail groove. Correspondingly, the bottom block of the push block 603 is a Chinese character block or a dovetail block, thereby ensuring that the push block 603 can move laterally along the vertical plate 501. A second spring 604 is fixed between the side plate 601 and the push block 603, and a top block 602 is fixed at the top of the connecting plate 502. The push block 603 and the top block 602 are on opposite sides. All have inclined surfaces 605. A pull rope 607 is connected to the side of the push block 603, and a guide block 608 is fixed to the top side of the hook 102. The pull rope 607 is movably inserted into the guide block 608. When there are two insertion shafts 503, the pull rope 607 located on the side of the guide block 608 is U-shaped. A guide plate 609 is fixed to the bottom end of the connector 101. A connecting rope 610 is fixed to one side of the pull rope 607. The connecting rope 610 is movably inserted into the guide plate 609. A lifting head 611 is fixed to the end of the connecting rope 610 to facilitate pulling the pull rope 607.

[0033] As a supplement to this solution, when performing anti-loosening locking, the operator pulls the lever 401, and the arc-shaped insert 4 moves along the inner cavity of the first arc-shaped tube 2 until the arc-shaped insert 4 is inserted into the inner cavity of the second arc-shaped tube 3. The arc-shaped insert 4 continues to move, and the end of the arc-shaped insert 4 abuts against the end of the insert shaft 503. At this time, the first spring 504 extends. When the insert body of the arc-shaped insert 4 and the insert hole on the tube body of the second arc-shaped tube 3 are connected, the first spring 504 returns to its original position, thereby inserting the insert shaft 503 into the insert hole on the arc-shaped insert 4, thus fixing the arc-shaped insert 4 and the second arc-shaped tube 3.

[0034] When the sling needs to be removed, the worker pulls the lifting head 611 by hand, and pulls the push block 603 through the pull rope 607. At this time, the push block 603 pushes the top block 602, the first spring 504 extends and the connecting plate 502 moves outward until the insertion shaft 503 disengages from the insertion hole on the arc-shaped insertion rod 4. At this time, the pull rod 401 is pulled in the opposite direction until the arc-shaped insertion rod 4 is retracted into the inner cavity of the first arc-shaped tube 2.

[0035] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended embodiments and their equivalents.

Claims

1. Anti-drop locking mechanism of a crane hook, comprising a connection head (101) and a hook (102), characterized in that: The tail end side of the hook (102) is fixed with a first arc-shaped round pipe (2), the top of the hook (102) is fixed with a second arc-shaped round pipe (3), the first arc-shaped round pipe (2) is movably inserted with an arc-shaped inserting rod (4), the arc-shaped inserting rod (4) is matched with the inner cavity of the second arc-shaped round pipe (3), and the centers of the first arc-shaped round pipe (2), the second arc-shaped round pipe (3) and the arc-shaped inserting rod (4) coincide. One side of the second arc-shaped round pipe (3) is provided with a anti-dropping locking piece (5), and the arc-shaped inserting rod (4) and the second arc-shaped round pipe (3) are fixed through the anti-dropping locking piece (5).

2. A load holding mechanism for a crane hook as claimed in claim 1, characterised in that: The outer side of the first arc-shaped round pipe (2) is provided with a movable groove (201), the bottom of the arc-shaped inserting rod (4) is fixed with a pull rod (401), and the pull rod (401) is matched with the movable groove (201).

3. A load holding mechanism for a crane hook as claimed in claim 1, characterised in that: The bottom wall of the first arc-shaped round pipe (2) is fixed with a magnet block (7), and the magnet block (7) is attracted to the first arc-shaped round pipe (2).

4. A load holding mechanism for a crane hook as claimed in claim 1, characterised in that: The anti-dropping locking piece (5) comprises a insertion hole formed on the rod body of the arc-shaped inserting rod (4) and the pipe body of the second arc-shaped round pipe (3), the bottom end of the connecting head (101) is fixed with at least one vertical plate (501), the plate body of the vertical plate (501) is movably inserted with an insertion shaft (503), and the insertion shaft (503) is matched with the insertion hole. The end of the insertion shaft (503) is fixed with a connecting plate (502), and the first spring (504) is arranged between the connecting plate (502) and the vertical plate (501).

5. A load holding mechanism for a crane hook as claimed in claim 1, characterized in that: The end of the arc-shaped inserting rod (4) and the insertion shaft (503) is formed with a curved surface.

6. A load holding mechanism for a crane hook as claimed in claim 4, characterised in that: The side of the vertical plate (501) is fixed with a side plate (601), the side plate body is provided with a special-shaped groove, the special-shaped groove is movably connected with a push block (603), and the second spring (604) is arranged between the side plate (601) and the push block (603). The top end of the connecting plate (502) is fixed with a top block (602), and the opposite sides of the push block (603) and the top block (602) are formed with inclined surfaces (605). The side of the push block (603) is connected with a pull rope (607), one side of the top of the hook (102) is fixed with a guide block (608), and the pull rope (607) is movably inserted with the guide block (608). The bottom end of the connecting head (101) is fixed with a guide plate (609), one side of the pull rope (607) is fixed with a connecting rope (610), the connecting rope (610) is movably inserted with the guide plate (609), and the end of the connecting rope (610) is fixed with a pulling head (611).

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