Rotary safety hook assembly directly connected with double-limb chain

Abstract

The utility model discloses a rotary safety hook assembly directly connected with a double-limb chain, which comprises a shell, a quick-release cover part detachably connected with the side surface of the shell, a rotary support component matched in the shell, the quick-release cover part is abutted against the rotary support component, the rotary support component is rotatably connected with a chain, and the chain is in clearance fit with the shell. The bottom of the shell is rotationally connected with a hook body; the top of the shell is fixedly connected with a safety block; the safety hook can be maintained and checked through simple and quick disassembly and assembly of the quick disassembly cover component and the shell, the rotary supporting assembly can be taken out of the shell, the movable part can be conveniently repaired, maintained or replaced, a hole is formed in the safety block at the top of the shell, and the safety rope can penetrate through the hole, so that the safety of the safety hook is improved.

Description

Technical Field

[0001] The utility model relates to the field of hoisting rigging, in particular to a rotary safety hook assembly directly connected to a double-limb chain. Background Art

[0002] Lifting rigging is a multi-action operating equipment used to lift and carry heavy objects to a designated location or tighten and fix goods within a certain range. It is often used to connect common components such as chains and slings.

[0003] Among the many lifting hooks, the double-chain lifting hook is labor-saving and suitable for multiple scenarios. In the conventional use of the double-chain lifting hook, when the internal maintenance and repair of the lifting hook is required, the shell is inconvenient to disassemble and assemble, and the internal parts are inconvenient to maintain and replace. Therefore, the chain often becomes untied or stuck during use. In this case, it is generally discarded directly, resulting in a waste of resources. It is possible that the problematic lifting hook will continue to be used, which will cause a series of safety accidents.

[0004] Therefore, there is an urgent need for a rotating safety hook assembly directly connected to a double-limb chain to solve the above problems. Utility Model Content

[0005] The utility model aims to provide a rotating safety hook assembly directly connected to a double-limb chain to solve the problems existing in the prior art.

[0006] To achieve the above-mentioned purpose, the utility model provides the following solution: The utility model provides a rotating safety hook assembly directly connected to a double-limb chain, including a shell, a quick-release cover component is detachably connected to the side of the shell, a rotating support component is adapted inside the shell, the quick-release cover component abuts against the rotating support component, a chain is rotatably connected to the rotating support component, the chain is gap-matched with the shell, a hook body is rotatably connected to the bottom of the shell, and a safety block is fixed to the top of the shell.

[0007] Preferably, the rotating support assembly includes a rotating wheel, a rotating shaft passes through the center of the rotating wheel, the rotating wheel is rotatably connected to the rotating shaft, a static support plate is fixedly connected to one end of the rotating shaft, the static support plate is fixedly connected to the shell, and the other end of the rotating shaft is adaptably connected to a dynamic support plate, the dynamic support plate is adapted to the shell, the dynamic support plate is in contact with the quick-release cover component, and two handles are fixedly connected to the dynamic support plate.

[0008] Preferably, the quick-release cover component includes a protective cover, which contacts the dynamic support plate and is matched with the shell. The quick-release cover is provided with a plurality of nail magazines, and the nail magazines are threadedly connected with nails. An outlet is connected in the nail magazine, and the outlet is connected to the side of the protective cover. A slider is slidably connected in the outlet, and one end of the slider abuts against the nail. A ring block is sleeved on the slider, and a small magazine is opened in the outlet. The ring block is slidably connected in the small magazine. A spring is sleeved on the slider, and the spring abuts against the ring block. The other end of the slider is slidably connected to the shell.

[0009] The shell includes a main frame, the bottom of the main frame is rotatably connected to the hook body, the top of the main frame is fixedly connected to a safety block, the top of the main frame is also provided with two chain openings, the chain openings are adapted to the chain gap, an extension frame is fixedly connected to the main frame, one side of the extension frame is fixedly connected to the static support plate, the other side of the extension frame is adapted to the dynamic support plate, a support bar is fixedly connected to the extension frame on a side close to the dynamic support plate, the support bar is in contact with the dynamic support plate, the outer side of the extension frame close to the support plate is adapted to the protective cover, a plurality of slider bins are provided on the extension frame, and the sliders are slidably connected to the slider bins.

[0010] Preferably, a connecting rod extends upward from the top of the hook body, the connecting rod is rotatably connected to the main frame, and a rotating block is fixedly connected to the end of the connecting rod.

[0011] The utility model discloses the following technical effects: the shell is a supporting component of the safety hook, and the maintenance and inspection of the safety hook can be realized by simply and quickly disassembling and assembling a quick-release cover component and the shell, and the rotating support component can be taken out from the shell, which is convenient for repairing, maintaining or replacing the movable parts; a hole is opened on the safety fastener at the top of the shell, and the safety rope can pass through the hole to improve the safety of the safety hook and be used as a movable pulley; the hook body rotatably connected to the bottom of the shell can be used for hoisting objects, and the top chain is fixed at a high place and used as a fixed pulley, and the hook body can be fixedly hung at a high place, one end of the chain is connected to the goods, and the other end of the chain provides a reverse force for hoisting objects. BRIEF DESCRIPTION OF THE DRAWINGS

[0012] In order to more clearly illustrate the embodiments of the utility model or the technical solutions in the prior art, the drawings required for use in the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the utility model. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0013] Figure 1 It is a schematic diagram of the overall structure of the utility model;

[0014] Figure 2This is a schematic diagram of the structure of the interior 1 of the main frame of the utility model;

[0015] Figure 3 This is a schematic diagram of the structure of the main frame 2 of the utility model;

[0016] Figure 4 It is a cross-sectional structural schematic diagram of the quick-release cover component of the utility model;

[0017] Among them, 1. hook body; 2. shell; 3. chain; 4. rotating block; 5. main frame; 6. extension frame; 8. dynamic support plate; 9. handle; 10. rotating wheel; 11. safety block; 12. protective cover; 13. nail; 14. nail magazine; 15. slider; 16. small magazine; 17. ring block; 18. spring; 19. slider magazine; 20. rotating shaft; 21. support bar; 22. chain mouth; 23. static support plate; 24. connecting rod. DETAILED DESCRIPTION

[0018] 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.

[0019] In order to make the above-mentioned purposes, features and advantages of the present invention more obvious and easy to understand, the present invention is further described in detail below in conjunction with the accompanying drawings and specific implementation methods.

[0020] Reference Figure 1-Figure 4 The utility model provides a rotating safety hook assembly directly connected to a double-limb chain 3, including a shell 2, a quick-release cover component detachably connected to the side of the shell 2, a rotating support component adapted inside the shell 2, the quick-release cover component abuts against the rotating support component, a chain 3 is rotatably connected to the rotating support component, the chain 3 and the shell 2 are gap-matched, a hook body 1 is rotatably connected to the bottom of the shell 2, and a safety block 11 is fixedly connected to the top of the shell 2.

[0021] Furthermore, the shell 2 is a supporting component of the safety hook. The safety hook can be maintained and inspected by simply and quickly disassembling the quick-release cover component and the shell 2. The rotating support assembly can be taken out from the shell 2 to facilitate the repair, maintenance or replacement of the movable parts. A hole is provided on the safety fastener at the top of the shell 2, and the safety rope can pass through the hole to improve the safety of the safety hook and be used as a movable pulley. The hook body 1 rotatably connected to the bottom of the shell 2 can be used to hoist objects, and the top chain 3 is fixed at a high place and used as a fixed pulley. The hook body 1 can be fixedly hung at a high place, one end of the chain 3 is connected to the cargo, and the other end of the chain 3 provides a reverse force that can be used to hoist objects.

[0022] A further optimized solution is that the rotating support assembly includes a rotating wheel 10, a rotating shaft 20 passes through the center of the rotating wheel 10, the rotating wheel 10 is rotatably connected to the rotating shaft 20, a static support plate 23 is fixedly connected to one end of the rotating shaft 20, the static support plate 23 is fixedly connected to the shell 2, and a dynamic support plate 8 is adaptably connected to the other end of the rotating shaft 20, the dynamic support plate 8 is adapted to the shell 2, the dynamic support plate 8 is in contact with the quick-release cover component, and two handles 9 are fixedly connected to the dynamic support plate 8.

[0023] Furthermore, the rotating support assembly mainly provides support and rotational force for the tension of the chain 3. The dynamic support plate 8 can be removed by the handle 9 to facilitate the maintenance or replacement of the rotating wheel 10, thereby improving safety during use. During installation, the dynamic support plate 8 has the shell 2 on one side as support and the quick-release cover component on the other side as a restriction. The dynamic support plate 8 can be fixed in a specified position to provide stable support for the rotating shaft 20.

[0024] A further optimization scheme is provided, in which the quick-release cover component includes a protective cover 12, which contacts the dynamic support plate 8, and is matched with the shell 2. A plurality of nail magazines 14 are provided on the quick-release cover, and nails 13 are connected by threads in the nail magazines 14. An outlet is connected in the nail magazines 14, and the outlet is connected to the side of the protective cover 12. A slider 15 is slidably connected in the outlet, and one end of the slider 15 abuts against the nail 13. A ring block 17 is sleeved on the slider 15, and a small magazine 16 is opened in the outlet. The ring block 17 is slidably connected in the small magazine 16. A spring 18 is sleeved on the slider 15, and the spring 18 abuts against the ring block 17. The other end of the slider 15 is slidably connected to the shell 2.

[0025] Furthermore, there are seven nail magazines 14 on the quick-release cover. When the nail 13 is gradually screwed into the nail magazine 14, the nail 13 comes into contact with the slider 15. As the nail 13 continues to enter the nail magazine 14, the slider 15 is squeezed by the nail 13, and the part of the slider 15 extending into the nail magazine 14 is gradually squeezed out by the nail 13 until the slider 15 is flush with the wall of the nail magazine 14. At this time, the spring 18 in the small magazine 16 is squeezed and contracted by the ring block 17 fixed to the nail magazine 14, and the other end of the slider 15 extends into the shell 2, thereby connecting the protective cover 12 to the shell 2. When the nail 13 is screwed out of the nail magazine 14, the slider 15 is acted upon by the spring 18, one end of the slider 15 slides out of the shell 2, and the other end enters the nail magazine 14, thereby releasing the connection between the protective cover 12 and the shell 2.

[0026] A further optimized solution is that the shell 2 includes a main frame 5, the bottom of the main frame 5 is rotatably connected to the hook body 1, a safety block 11 is fixedly connected to the top of the main frame 5, and two chain openings 22 are also provided on the top of the main frame 5, and the chain openings 22 are adapted to the gap of the chain 3, an extension frame 6 is fixedly connected to the main frame 5, one side of the extension frame 6 is fixedly connected to the static support plate 23, and the other side of the extension frame 6 is adapted to the dynamic support plate 8, a support bar 21 is fixedly connected to the side of the extension frame 6 close to the dynamic support plate 8, the support bar 21 is in contact with the dynamic support plate 8, and the outside of the extension frame 6 close to the support plate is adapted to the protective cover 12, and a plurality of slider bins 19 are provided on the extension frame 6, and the sliders 15 are slidably connected to the slider bins 19.

[0027] Furthermore, the main frame 5 is a supporting and force-bearing structure for the safety hook, and the extension frame 6 extends to both sides of the main frame 5 to provide space for internal parts. The chain 3 enters from one chain opening 22 and exits from another chain opening 22 through the rotating wheel 10. The support bar 21 is fixedly connected to the inner wall of the extension frame 6. The support bar 21 is used to limit the position of the movable support plate 8. The seven slider bins 19 opened on the extension frame 6 are slidably connected with the seven sliders 15.

[0028] According to a further optimized solution, a connecting rod 24 extends upward from the top of the hook body 1 , the connecting rod 24 is rotatably connected to the main frame 5 , and a rotating block 4 is fixedly connected to the end of the connecting rod 24 .

[0029] Furthermore, an opening is opened at the bottom of the main frame 5, and the connecting rod 24 is fixedly connected to the rotating block 4 through the opening at the bottom of the main frame 5. The other end of the connecting rod 24 is fixedly connected to the hook body 1 to realize the connection between the hook body 1 and the main frame 5. Through the rotational connection between the hook body 1 and the main frame 5, the rotational force caused by the lifting of the goods can be discharged, avoiding the two chains 3 from being entangled together.

[0030] In the description of the present invention, it should be understood that the terms "longitudinal", "lateral", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside" and "outside" etc., indicating orientations or positional relationships, are based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as a limitation on the present invention.

[0031] 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. A rotating safety hook assembly directly connected to a double-limb chain, characterized in that: The invention comprises a shell (2), a quick-release cover component being detachably connected to the side of the shell (2), a rotating support assembly being adapted inside the shell (2), the quick-release cover component being in abutment with the rotating support assembly, a chain (3) being rotatably connected to the rotating support assembly, the chain (3) being gap-matched with the shell (2), a hook body (1) being rotatably connected to the bottom of the shell (2), and a safety block (11) being fixedly connected to the top of the shell (2).

2. The rotating safety hook assembly directly connected to the double-limb chain according to claim 1, characterized in that: The rotating support assembly comprises a rotating wheel (10), a rotating shaft (20) passing through the center of the rotating wheel (10), the rotating wheel (10) being rotatably connected to the rotating shaft (20), a static supporting plate (23) being fixedly connected to one end of the rotating shaft (20), the static supporting plate (23) being fixedly connected to the shell (2), and a dynamic supporting plate (8) being adaptable and connected to the other end of the rotating shaft (20), the dynamic supporting plate (8) being adaptable to the shell (2), the dynamic supporting plate (8) being in contact with the quick-release cover component, and two handles (9) being fixedly connected to the dynamic supporting plate (8).

3. The rotating safety hook assembly directly connected to the double-limb chain according to claim 2, characterized in that: The quick-release cover component comprises a protective cover (12), the protective cover (12) contacts the movable support plate (8), the protective cover (12) is adapted to the shell (2), a plurality of nail magazines (14) are provided on the quick-release cover, nails (13) are connected by threads in the nail magazine (14), an outlet is communicated in the nail magazine (14), the outlet is connected to the side of the protective cover (12), a slider (15) is slidably connected in the outlet, one end of the slider (15) abuts against the nail (13), a ring block (17) is sleeved on the slider (15), a small chamber (16) is provided in the outlet, the ring block (17) is slidably connected in the small chamber (16), a spring (18) is sleeved on the slider (15), the spring (18) abuts against the ring block (17), and the other end of the slider (15) is slidably connected to the shell (2).

4. The rotating safety hook assembly directly connected to the double-limb chain according to claim 3, characterized in that: The shell (2) comprises a main frame (5), the bottom of the main frame (5) is rotatably connected to the hook body (1), the top of the main frame (5) is fixedly connected to a safety block (11), the top of the main frame (5) is also provided with two chain openings (22), the chain openings (22) are gap-matched with the chain (3), an extension frame (6) is fixedly connected inside the main frame (5), one side of the extension frame (6) is fixedly connected to the static support plate (23), the other side of the extension frame (6) is matched with the dynamic support plate (8), a support bar (21) is fixedly connected inside the extension frame (6) close to the dynamic support plate (8), the support bar (21) is in contact with the dynamic support plate (8), the outer side of the extension frame (6) close to the support plate is matched with the protective cover (12), a plurality of slider bins (19) are provided on the extension frame (6), and the sliders (15) are slidably connected to the slider bins (19).

5. The rotating safety hook assembly directly connected to the double-limb chain according to claim 4, characterized in that: A connecting rod (24) extends upward from the top of the hook body (1), the connecting rod (24) is rotatably connected to the main frame (5), and a rotating block (4) is fixedly connected to the end of the connecting rod (24).

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