Hook anti-falling structure of crane

Abstract

The utility model belongs to the technical field of crane hooks, and particularly relates to a hook anti-dropping structure of a crane, which comprises a hook main body, a limiting part arranged at one end of the hook main body, an anti-dropping plate arranged at the other end of the hook main body, a connecting seat arranged at the top end of the hook main body, a roller group arranged at the top end of the connecting seat and a connecting cable arranged in the roller group, a movable cushion block is arranged in the hook body, a limiting groove is formed in the bottom end of the limiting part, a movable groove is formed in one side of the inner wall of the limiting groove, and a limiting block is arranged in the movable groove. The distance between the limiting plate and the sliding block is driven to be shrunk through reset of the reset spring, so that the limiting rod is driven to be automatically clamped into the limiting groove, the anti-falling plate can be automatically clamped, the movable cushion block is driven to descend through a heavy object in the hook body, the movable cushion block abuts against the protruding rod, and the anti-falling effect is achieved. The protruding rod drives the limiting block to stretch out through the movable rod, so that the anti-disengaging plate is automatically locked through the clamping groove in the bottom end of the limiting rod, and looseness is prevented.

Description

Technical Field

[0001] The utility model relates to the technical field of crane hooks, in particular to a crane hook anti-falling structure. Background Art

[0002] A crane is a multi-action lifting machine that can lift and transport heavy objects vertically and horizontally within a certain range. Also known as an overhead crane, overhead crane, or hoist, some lifting equipment features intermittent motion, meaning that the corresponding mechanisms for retrieving, transporting, and unloading operations alternate within a single cycle. Cranes are becoming increasingly popular and widely used in the market.

[0003] The crane hook is an important structure on the crane. It is a connecting mechanism for hanging heavy objects. When performing lifting operations, the hook is used to hook and lift the object.

[0004] When hanging items on common hooks, if the hanging angle is large, the items are likely to fall off the hooks, which not only affects the normal production, but also easily causes production accidents, posing a threat to equipment and personal safety. Utility Model Content

[0005] In view of the deficiencies in the prior art, the utility model provides a hook anti-drop structure for a crane, which solves the problems raised in the background art.

[0006] To achieve the above objectives, the present invention provides the following technical solutions:

[0007] A hook anti-drop structure for a crane comprises a hook body, a limit portion is provided at one end of the hook body, an anti-drop plate is provided at the other end of the hook body, a connecting seat is provided at the top end of the hook body, a roller group is provided at the top end of the connecting seat, and a connecting cable is provided inside the roller group;

[0008] A movable pad is provided inside the hook body, a limiting groove is provided at the bottom end of the limiting portion, a movable groove is provided on one side of the inner wall of the limiting groove, and a limiting block is provided inside the movable groove.

[0009] As a preferred technical solution of the present invention, a rubber pad is provided on the outer surface of the top end of the movable pad, and the movable pad is movably connected to the inner wall of the hook body through a spring rod at the bottom end.

[0010] As an optimal technical solution of the present invention, a connecting plate is provided on one side of the anti-slip plate, a sliding block is provided at one end of the connecting plate, a sliding rod is fixedly provided on one side of the sliding block, a reset spring is sleeved on the outer surface of the sliding rod, and one end of the connecting plate is movably connected to the hook body through a reset shaft.

[0011] As an optimal technical solution of the present invention, a movable plate is provided at the other end of the anti-slip plate, and the sliding block is slidably connected to the movable plate through a sliding groove inside the movable plate. The sliding rod passes through a limit plate arranged in the sliding groove and is slidably connected to the limit plate, and the sliding block is connected to the limit plate through a reset spring.

[0012] As a preferred technical solution of the present invention, one side of the limit block is fixedly connected to a movable rod, one side of the movable rod is fixedly connected to a convex rod, and the outer surface of the movable rod is sleeved with a spring.

[0013] As a preferred technical solution of the present invention, the movable rod passes through the limiting plate arranged in the movable groove and is movably connected to the limiting plate through a spring.

[0014] As an optimal technical solution of the present invention, a limiting rod is fixedly provided at one end of the movable plate, and the movable plate is clamped with the limiting groove through the limiting rod. A corresponding clamping groove adapted to the limiting block is provided at the bottom end of one side of the limiting rod.

[0015] Compared with the prior art, the present invention provides a hook anti-drop structure for a crane, which has the following beneficial effects:

[0016] The anti-slip structure of the hook of a crane is characterized in that a reset shaft is provided to drive the anti-slip plate to reset and hold the limit part, thereby driving the movable plate to move, so that the limit rod is aligned with the limit groove; the reset spring resets and drives the distance between the limit plate and the sliding block to shrink, thereby driving the movable plate to reset, thereby driving the limit rod to automatically fit into the limit groove, thereby automatically engaging the anti-slip plate; the movable pad is driven down by the weight in the hook body, thereby making the movable pad hold the protruding rod; the protruding rod drives the limit block to extend through the movable rod, thereby automatically locking the anti-slip plate with the slot at the bottom end of the limit rod to prevent loosening. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 This is a schematic diagram of the three-dimensional structure of the hook body of the utility model;

[0018] Figure 2 This is a schematic diagram of the opening and closing structure of the hook body of the utility model;

[0019] Figure 3 This is a schematic diagram of the three-dimensional partial internal structure of the utility model;

[0020] Figure 4 For this utility model Figure 3 Schematic diagram of the partially enlarged structure;

[0021] Figure 5 This is a schematic diagram of the three-dimensional structure of the anti-slip plate of the utility model;

[0022] Figure 6The utility model discloses an inside structure schematic diagram of movable tank.

[0023] In the figure: 1, the hook main body; 101, movable cushion block; 1011, spring rod; 102, limit block; 1021, movable rod; 1022, convex rod; 1023, spring; 2, limit portion; 201, limit slot; 202, movable tank; 3, anti-drop plate; 301, connecting plate; 3011, sliding block; 3012, sliding rod; 3013, reset pivot; 3014, reset spring; 302, movable plate; 3021, sliding slot; 303, limit rod; 3031, limit rod; 4, limit portion; 5, roller group; 6, connecting cable DETAILED DESCRIPTION

[0024] The technical scheme in the embodiments of the utility model will be apparently and completely described below with reference to the drawings in the embodiments of the utility model. Apparently, the described embodiments are only part of the embodiments of the utility model, not all the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by the person skilled in the art without creative work belong to the protection scope of the utility model.

[0025] Please refer to Figure 1-2 In the embodiment, the hook anti-drop structure of the crane comprises a hook main body 1, the hook main body 1 is provided with a limit portion 2 at one end, the hook main body 1 is provided with an anti-drop plate 3 at the other end, the top end of the hook main body 1 is provided with a connecting seat 4, the connecting seat 4 is provided with a roller group 5 at the top end, the roller group 5 is provided with a connecting cable 6 inside,

[0026] The hook main body 1 is provided with a movable cushion block 101 inside, the limit portion 2 is provided with a limit slot 201 at the bottom end, the inner wall of the limit slot 201 is provided with a movable tank 202 at one side, and the movable tank 202 is provided with a limit block 102 inside.

[0027] Please refer to Figure 3-5 In the embodiment, the anti-drop plate 3 is provided with a connecting plate 301 at one side, the connecting plate 301 is provided with a sliding block 3011 at one end, the sliding block 3011 is fixedly provided with a sliding rod 3012 at one side, the sliding rod 3012 is provided with a reset spring 3014 on the outer surface, and the connecting plate 301 is movably connected with the hook main body 1 through a reset pivot 3013, the reset pivot 3013 drives the anti-drop plate 3 to reset, and the anti-drop plate 3 is automatically closed.

[0028] Furthermore, a movable plate 302 is provided at the other end of the anti-slip plate 3, and a sliding block 3011 is slidably connected to the movable plate 302 through a sliding groove 3021 inside the movable plate 302. The sliding rod 3012 passes through a limit plate arranged in the sliding groove 3021 and is slidably connected to the limit plate. The sliding block 3011 is connected to the limit plate through a return spring 3014. The connecting plate 301 slides in the sliding groove 3021 inside the movable plate 302 through the sliding block 3011, thereby adjusting the length of the anti-slip plate 3. At the same time, the return spring 3014 is reset to drive the distance between the limit plate and the sliding block 3021 to shrink, driving the movable plate 302 to reset.

[0029] In order to prevent the anti-slip plate 3 from loosening, a limiting rod 303 is fixedly provided at one end of the movable plate 302. The movable plate 302 is clamped with the limiting groove 201 through the limiting rod 303. The bottom end of one side of the limiting rod 303 is correspondingly provided with a clamping groove 3031 adapted to the limiting block 102. When the anti-slip plate 3 is clamped by the limiting rod 303, the clamping groove 3031 on one side of the limiting rod 303 is locked by the extended limiting block 102 to prevent the anti-slip plate 3 from loosening.

[0030] See also Figure 3-4 and Figure 6 In this embodiment, a movable rod 1021 is fixedly connected to one side of the limit block 102, and a convex rod 1022 is fixedly connected to one side of the movable rod 1021. A spring 1023 is sleeved on the outer surface of the movable rod 1021. The movable rod 1021 passes through the limit plate set in the movable groove 202 and is movably connected to the limit plate through the spring 1023. The convex rod 1022 is reset by the spring 1023, so that the limit block 102 is retracted into the movable groove 202.

[0031] Furthermore, a rubber pad is provided on the outer surface of the top end of the movable pad 101, and the movable pad 101 is movably connected to the inner wall of the hook body 1 through the bottom spring rod 1011. When there is a heavy object on the hook body 1, the movable pad 101 is driven to move downward, and the movable pad 101 is pressed against the protruding rod 1022 to contract and drive it, and the limit block 102 extends to lock the limit rod 303.

[0032] The working principle and usage process of the present invention are as follows: when in use, the cable is placed on the hook body 1, and the anti-slip plate 3 is reset by the reset shaft 3013, which contacts the limit part 2 and pulls the movable plate 302, so that the connecting plate 301 slides in the sliding groove 3021 on the inner side of the movable plate 302 through the sliding block 3011. After the cam 310 is in the process of being moved, the stopper 303 is moved out of the way and the stopper 301 is engaged, and the stopper 303 is engaged with the stopper 3021 to stop the cam 310. When the cam 310 is in the process of being moved, the stopper 303 is engaged with the stopper 302 and the stopper 302 is engaged.

[0033] Finally, it should be noted that the above description is merely a preferred embodiment of the present invention and is not intended to limit the present invention. Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art will be able to modify the technical solutions described in the aforementioned embodiments or replace some of the technical features therein with equivalents. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principles of the present invention shall be included within the scope of protection of the present invention.

Claims

1. A hook anti-slip structure for a crane, comprising a hook body (1), a limit portion (2) provided at one end of the hook body (1), an anti-slip plate (3) provided at the other end of the hook body (1), a connecting seat (4) provided at the top end of the hook body (1), a roller group (5) provided at the top end of the connecting seat (4), a connecting cable (6) provided inside the roller group (5), and characterized in that: A movable pad (101) is provided inside the hook body (1), a limiting groove (201) is provided at the bottom end of the limiting portion (2), a movable groove (202) is provided on one side of the inner wall of the limiting groove (201), and a limiting block (102) is provided inside the movable groove (202).

2. The anti-drop structure for a crane hook according to claim 1, characterized in that: A rubber pad is provided on the outer surface of the top end of the movable pad (101), and the movable pad (101) is movably connected to the inner wall of the hook body (1) via a spring rod (1011) at the bottom end.

3. The anti-drop structure for a crane hook according to claim 1, characterized in that: A connecting plate (301) is provided on one side of the anti-slip plate (3), a sliding block (3011) is provided on one end of the connecting plate (301), a sliding rod (3012) is fixedly provided on one side of the sliding block (3011), a reset spring (3014) is sleeved on the outer surface of the sliding rod (3012), and one end of the connecting plate (301) is movably connected to the hook body (1) via a reset shaft (3013).

4. The anti-drop structure for a crane hook according to claim 1, characterized in that: The other end of the anti-slip plate (3) is provided with a movable plate (302), the sliding block (3011) is slidably connected to the movable plate (302) through an internal sliding groove (3021) of the movable plate (302), the sliding rod (3012) passes through a limiting plate provided in the sliding groove (3021) and is slidably connected to the limiting plate, and the sliding block (3011) is connected to the limiting plate via a reset spring (3014).

5. The anti-drop structure for a crane hook according to claim 1, characterized in that: One side of the limit block (102) is fixedly connected to a movable rod (1021), one side of the movable rod (1021) is fixedly connected to a protruding rod (1022), and a spring (1023) is sleeved on the outer surface of the movable rod (1021).

6. The anti-drop structure for a crane hook according to claim 1, characterized in that: The movable rod (1021) passes through a limiting plate arranged in the movable groove (202) and is movably connected to the limiting plate via a spring (1023).

7. The anti-drop structure for a crane hook according to claim 1, characterized in that: A limiting rod (303) is fixedly provided at one end of the movable plate (302), and the movable plate (302) is engaged with the limiting groove (201) via the limiting rod (303). A clamping groove (3031) adapted to the limiting block (102) is correspondingly provided at the bottom end of one side of the limiting rod (303).

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