Anti-falling lifting hook

Abstract

The utility model discloses an anti-falling lifting hook and belongs to the technical field of lifting. The steel wire rope, the connecting block and the hook body are sequentially connected from top to bottom; the tail end of the hook body is rotationally connected with a locking assembly matched with the protruding block, the locking assembly comprises a third connecting piece rotationally connected with the hook body, and a through long through hole is formed in the center of the third connecting piece; the connecting column is arranged in the through hole in a sliding mode, and a first connecting piece, a spring and a second connecting piece which are connected in sequence are arranged on the connecting column in a sleeving mode; the outer wall of the first connecting piece is fixedly connected with the inner wall of the through hole, and the inner wall of the first connecting piece is slidably connected with the connecting column; the outer wall of the second connecting piece is in clearance fit with the inner wall of the through hole, and the inner wall of the second connecting piece is fixedly connected with the connecting column; a third groove is formed in the end, close to the second connecting piece, of the connecting column and matched with the protruding block. By arranging the locking component, the opening of the hook body is maximized, so that a thicker lifting rope can enter and exit conveniently.

Description

Technical Field

[0001] The utility model relates to the technical field of hoisting, in particular to an anti-falling hook. Background Art

[0002] The hook is the most common type of lifting device in a hoisting machine. When in use, the hook is put on the lifting ring of the object to be hoisted, and then the object is hung on the hook to complete the hoisting. The existing safety hoisting machine for highway bridge construction uses an anti-falling device (elastic buckle) set on the hook to prevent the hoisted heavy objects from falling off the hook. This elastic buckle is more convenient when hanging heavy objects. If the position where the object is hung is relatively rough, the buckle needs to be pressed to a more inner position when taking the object. At this time, the object will be blocked by the buckle during the removal process, and the position of the object needs to be constantly adjusted to remove it. It is difficult to achieve quick removal, which reduces work efficiency and is not conducive to the efficient use of equipment.

[0003] For example, the existing Chinese patent publication number is: CN215101497U, which is a safe hoisting machine for highway bridge construction, including a hook, a buckle structure and a release structure. The hook is fixedly connected to a connecting block, the top of the connecting block is rotatably connected to a U-shaped block, the U-shaped block is rotatably connected to a pulley, and the buckle structure is installed on the connecting block.

[0004] It can be seen that the patent document cited above also has the same problem. Although the device can prevent looseness during the hanging process when in use, thereby improving work efficiency, when the hung items need to be taken out and the hanging rope is thick, pushing the stopper into the inside of the hook will inevitably be affected, so manual assistance is needed to adjust the position of the hanging rope in order to barely take it out, which brings great inconvenience.

[0005] Therefore, it is necessary to develop a kind of anti-falling hook for the above-mentioned defects. Utility Model Content

[0006] The utility model aims to provide an anti-drop hook to solve the problem that when the hanging rope is thick, it affects the taking out of the hanging objects.

[0007] In order to solve the above technical problems, the utility model adopts the following technical solutions:

[0008] The utility model discloses an anti-falling hook, comprising:

[0009] A steel wire rope, a connecting block and a hook body are connected in sequence from top to bottom; the hook body has a protrusion, and the end of the hook body is rotatably connected to a locking assembly that cooperates with the protrusion, and the locking assembly can close the upward opening of the hook body, wherein the locking assembly includes:

[0010] A third connecting member rotatably connected to the hook body, wherein a through hole is provided at the center of the third connecting member;

[0011] A connecting column slidably arranged in the through hole, wherein a first connecting member, a spring and a second connecting member connected in sequence are sleeved on the connecting column; an outer wall of the first connecting member is fixedly connected to an inner wall of the through hole, and an inner wall of the first connecting member is slidably connected to the connecting column; an outer wall of the second connecting member is clearance-matched with an inner wall of the through hole, and an inner wall of the second connecting member is fixedly connected to the connecting column;

[0012] One end of the connecting column close to the first connecting member is connected to a pull ring, and one end of the connecting column close to the second connecting member has a third groove, and the third groove is arranged in cooperation with the protrusion.

[0013] Furthermore, it also includes a rotating shaft core for connecting the third connecting member and the hook body; two ends of the rotating shaft core are coaxially arranged with clamping cylindrical heads with increased diameter, the third connecting member is provided with a fifth groove, and the end of the hook body is provided with a fourth groove, the fifth groove and the fourth groove form a clamping cylindrical space for accommodating the rotating shaft core, and the rotating shaft core is rotatably connected to the fifth groove and the fourth groove respectively.

[0014] Furthermore, the connection block is provided with a first groove and a second groove respectively, and the second groove is located below the first groove and is connected with the first groove through a connection hole;

[0015] The steel wire rope passes through the first groove and the connecting hole in sequence and then extends into the second groove. The end of the steel wire rope is tied with a binding rope for preventing the steel wire rope from falling off; a sealing ring is arranged between the steel wire rope and the connecting hole; and a casting block for connecting the steel wire rope and the connecting block as one body is arranged in the first groove.

[0016] Furthermore, the hook body is J-shaped, the top of the J-shaped hook body is arranged in the second groove and is spaced a predetermined distance from the steel wire rope, and the top of the hook body is rotatably connected to the bottom of the second groove.

[0017] The utility model has the following beneficial effects:

[0018] In the utility model, the locking assembly is provided so that the opening of the hook body is maximized, thereby facilitating the entry and exit of a thicker lifting rope. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] The utility model will be further described below in conjunction with the accompanying drawings.

[0020] Figure 1 This is a schematic cross-sectional view of the internal structure of the anti-drop hook of the utility model in a working state;

[0021] Figure 2 This is a schematic cross-sectional view of the internal structure of the anti-drop hook of the utility model in a non-working state;

[0022] Figure 3 The utility model is an anti-falling hook Figure 1 A schematic diagram of the enlarged structure at A in the middle;

[0023] Figure 4 The utility model is an anti-falling hook Figure 1 Schematic diagram of the enlarged structure at point B in the middle.

[0024] Figure markings: 1. connecting block; 101. first groove; 102. second groove; 103. connecting hole; 2. steel wire rope; 3. casting block; 4. binding rope; 5. hook body; 501. protrusion; 502. fourth groove; 6. rotating shaft core; 7. locking assembly; 701. first connecting member; 702. pull ring; 703. connecting column; 704. spring; 705. second connecting member; 706. third connecting member; 707. fifth groove; 708. through hole; 709. third groove. DETAILED DESCRIPTION

[0025] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0026] In the description of the present invention, it should be understood that the terms "upper", "lower", "front", "back", "left", "right", "top", "bottom", "inside", "outside", etc., indicating directions or positional relationships, are based on the directions or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific direction, be constructed and operated in a specific direction, and therefore should not be understood as a limitation on the present invention.

[0027] Embodiment 1

[0028] See also Figure 1-4 The utility model provides a technical solution: an anti-drop hook, comprising: a steel wire rope 2, a connecting block 1 and a hook body 5 connected in sequence from top to bottom. The connecting block 1 and the hook body 5 are preferably made of carbon steel, mainly manganese steel, which is hot-formed and then painted or galvanized.

[0029] The hook body 5 has a protrusion 501, and the end of the hook body 5 is rotatably connected to a locking assembly 7 that is arranged in cooperation with the protrusion 501. The locking assembly 7 can close the upward opening of the hook body 5, wherein the locking assembly 7 includes: a third connecting member 706 that is rotatably connected to the hook body 5, and a through hole 708 is arranged at the center of the third connecting member 706. A connecting column 703 is slidably arranged in the through hole 708, and a first connecting member 701, a spring 704, and a second connecting member 705 that are connected in sequence are sleeved on the connecting column 703. The outer wall of the first connecting member 701 is fixedly connected to the inner wall of the through hole 708, and the inner wall of the first connecting member 701 is slidably connected to the connecting column 703; the outer wall of the second connecting member 705 is clearance-matched with the inner wall of the through hole 708, and the inner wall of the second connecting member 705 is fixedly connected to the connecting column 703. The end of the connecting column 703 close to the first connecting member 701 is connected to the pull ring 702, and the end of the connecting column 703 close to the second connecting member 705 has a third groove 709, and the third groove 709 is arranged in cooperation with the protrusion 501. The third connecting member 706, the first connecting member 701, the second connecting member 705 and the connecting column 703 are preferably made of carbon steel, mainly manganese steel, which is hot-formed and then painted or galvanized.

[0030] By pulling the pull ring 702 to the left, the pull ring 702 drives the connecting column 703 to move to the left, and at the same time the second connecting member 705 compresses the spring 704 to the left until the third groove 709 is separated from the protrusion 501, and the third connecting member 706 is rotated to maximize the opening of the hook body 5 to facilitate the entry and exit of a thicker lifting rope.

[0031] Compared with the prior art, the present invention provides a locking assembly 7 to maximize the opening of the hook body 5, thereby facilitating the entry and exit of thicker lifting ropes.

[0032] Embodiment 2

[0033] See also Figure 1-4 On the basis of the first embodiment, the utility model provides a technical solution: an anti-fall hook also includes a rotating shaft core 6 for connecting the third connecting member 706 and the hook body 5; a fifth groove 707 is provided on the third connecting member 706, and a fourth groove 502 is provided at the end of the hook body 5. The fifth groove 707 and the fourth groove 502 form a space for accommodating the rotating shaft core 6, and the rotating shaft core 6 is rotatably connected to the fifth groove 707 and the fourth groove 502 respectively.

[0034] The rotating shaft core 6 is preferably made of carbon steel, mainly manganese steel that is hot-formed and then painted or galvanized. The rotating shaft core 6 is cylindrical to facilitate rotation in the space formed by the fifth groove 707 and the fourth groove 502, thereby enhancing the flexibility of the overall structure.

[0035] Compared with the prior art, the third connecting member 706 of the present invention can be flexibly rotated relative to the hook body 5 to move the connecting column 703 away from the upper part of the hook of the hook body 5, so that the opening of the hook body 5 is maximized, which is convenient for thicker lifting ropes to enter and exit.

[0036] Embodiment 3

[0037] See also Figure 1-4 On the basis of the first and second embodiments, the utility model provides a technical solution: a first groove 101 and a second groove 102 are respectively provided on the connecting block 1 , and the second groove 102 is located below the first groove 101 and is connected to the first groove 101 through a connecting hole 103 .

[0038] The steel wire rope 2 passes through the first groove 101 and the connecting hole 103 in sequence and then extends into the second groove 102. The end of the steel wire rope 2 is tied with a tying rope 4 for preventing the steel wire rope 2 from falling off; a sealing ring is arranged between the steel wire rope 2 and the connecting hole 103; a casting block 3 for connecting the steel wire rope 2 and the connecting block 1 into one body is arranged in the first groove 101.

[0039] The casting block 3 is a casting liquid in a molten state during casting, and the temperature of the molten casting liquid is lower than the melting point of the steel wire rope 2, thereby preventing the steel wire rope 2 from being melted. The cooled casting liquid forms the casting block 3 and solidifies together with the steel wire rope 2, thereby enhancing the strength of the connection and avoiding wear of the steel wire rope 2.

[0040] In this embodiment, the hook body 5 is J-shaped, the top of the J-shaped hook body 5 is arranged in the second groove 102 and is spaced a predetermined distance from the wire rope 2, and the top of the hook body 5 is rotatably connected to the bottom of the second groove 102 to facilitate adjustment of the bending direction of the hook body 5.

[0041] Embodiment 4

[0042] This embodiment provides a method for using an anti-drop hook, which is the method for using the anti-drop hook provided in Embodiment 1, Embodiment 2 or Embodiment 3, and is specifically as follows:

[0043] Before use, the opening of the hook body 5 reaches its maximum. When the thicker lifting rope enters the bend of the hook body 5, pull the pull ring 702, which drives the connecting column 703 to move, and at the same time drives the second connecting member 705 to compress the spring 704 and rotate the third connecting member 706. After the third groove 709 at the end of the connecting column 703 is aligned with the protrusion 501, release the pull ring 702 to make the third groove 709 cover the protrusion 501 to limit the rotation of the connecting column 703 and prevent the lifting rope from falling off.

[0044] After the lifting is completed, by pulling the pull ring 702 to the left, the pull ring 702 drives the connecting column 703 to move to the left, and at the same time the second connecting member 705 compresses the spring 704 to the left until the third groove 709 is separated from the protrusion 501, and the third connecting member 706 is rotated to make the opening of the hook body 5 reach the maximum. At this time, the pull ring 702 is released, and then the lifting rope can be removed smoothly.

[0045] In this specification, each embodiment is described in a progressive manner, and each embodiment focuses on the differences from other embodiments. The same or similar parts between the embodiments can be referred to each other. For the device disclosed in the embodiment, since it corresponds to the method disclosed in the embodiment, the description is relatively simple, and the relevant parts can be referred to the method part.

[0046] The embodiments described above are only descriptions of the preferred methods of the present invention, and are not intended to limit the scope of the present invention. Without departing from the design spirit of the present invention, various modifications and improvements made to the technical solutions of the present invention by ordinary technicians in this field should fall within the protection scope determined by the claims of the present invention.

Claims

1. An anti-fall hook, characterized in that: include: A steel wire rope (2), a connecting block (1) and a hook body (5) are connected in sequence from top to bottom; the hook body (5) has a protrusion (501), the end of the hook body (5) is rotatably connected to a locking assembly (7) arranged in cooperation with the protrusion (501), the locking assembly (7) can close the upward opening of the hook body (5), and the locking assembly (7) comprises: a third connecting member (706) rotatably connected to the hook body (5), wherein a through-hole (708) is provided at the center of the third connecting member (706); A connecting column (703) is slidably arranged in the through hole (708), and a first connecting member (701), a spring (704) and a second connecting member (705) are sleeved on the connecting column (703) and are connected in sequence; the outer wall of the first connecting member (701) is fixedly connected to the inner wall of the through hole (708), and the inner wall of the first connecting member (701) is slidably connected to the connecting column (703); the outer wall of the second connecting member (705) is clearance-matched with the inner wall of the through hole (708), and the inner wall of the second connecting member (705) is fixedly connected to the connecting column (703); One end of the connecting column (703) close to the first connecting member (701) is connected to a pull ring (702), and one end of the connecting column (703) close to the second connecting member (705) has a third groove (709), and the third groove (709) is arranged in cooperation with the protrusion (501).

2. The anti-fall hook according to claim 1, characterized in that: It also includes a rotating shaft core (6) for connecting the third connecting member (706) and the hook body (5); the rotating shaft core (6) is coaxially provided with a clamping cylindrical head with an increased diameter at both ends; the third connecting member (706) is provided with a fifth groove (707); the end of the hook body (5) is provided with a fourth groove (502); the fifth groove (707) and the fourth groove (502) form a clamping cylindrical space for accommodating the rotating shaft core (6); the rotating shaft core (6) is rotatably connected to the fifth groove (707) and the fourth groove (502) respectively.

3. The anti-fall hook according to claim 2, characterized in that: The connection block (1) is respectively provided with a first groove (101) and a second groove (102); the second groove (102) is located below the first groove (101) and is connected to the first groove (101) through a connection hole (103); The steel wire rope (2) passes through the first groove (101) and the connecting hole (103) in sequence and then extends into the second groove (102); the end of the steel wire rope (2) is tied with a tying rope (4) for preventing the steel wire rope (2) from falling off; a sealing ring is provided between the steel wire rope (2) and the connecting hole (103); and a casting block (3) for connecting the steel wire rope (2) and the connecting block (1) into one body is provided in the first groove (101).

4. The anti-fall hook according to claim 3, characterized in that: The hook body (5) is J-shaped, the top of the J-shaped hook body (5) is arranged in the second groove (102) and is spaced a predetermined distance from the steel wire rope (2), and the top of the hook body (5) is rotatably connected to the bottom of the second groove (102).

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