Novel C-shaped hook structure and self-balancing type lifting appliance

Abstract

The utility model relates to a novel C-shaped hook structure and a self-balancing type lifting appliance, the C-shaped hook structure comprises a box body, a front-section hook tooth and a rear-section hook tooth, the rear-section hook tooth is installed on the box body in a manner of being capable of turning over up and down and being positioned, and the front-section hook tooth is installed on the rear-section hook tooth in a manner of being capable of turning over up and down and being positioned. The lifting appliance has the advantages of being simple in structure, reasonable in design, capable of achieving automatic hooking and releasing of goods, capable of achieving automatic balance of the whole lifting appliance, capable of avoiding inclination of the lifting appliance due to center-of-gravity shift, convenient to use, high in efficiency, time-saving and labor-saving.

Description

Technical Field

[0001] The utility model relates to the technical field of port hoisting, in particular to a novel C-type hook structure and a self-balancing hoisting device. Background Art

[0002] When loading and unloading wire rod cargo at the dock, the sling is usually used for sling lifting. Before lifting, the sling needs to be manually passed through the wire rod and hung, and then manually pulled out after the lifting is completed. The whole process is time-consuming, labor-intensive, inefficient, and has certain safety hazards. Utility Model Content

[0003] The utility model provides a novel C-shaped hook structure and a self-balancing sling, aiming to solve the problems in the prior art.

[0004] The technical solution of the utility model to solve the above technical problems is as follows:

[0005] A novel C-type hook structure comprises a box body, a front hook tooth and a rear hook tooth, wherein the rear hook tooth can be turned upside down and positioned on the box body, and the front hook tooth can be turned upside down and positioned on the rear hook tooth.

[0006] The beneficial effects of the utility model are as follows: during use, the front hook teeth and the rear hook teeth are respectively rotated to a horizontal state and positioned to hook and carry cargo; when unloading cargo, the rear hook teeth are rotated to a vertical state, and the front hook teeth are rotated downward at the same time to release the cargo.

[0007] The utility model has the advantages of simple structure and reasonable design, can realize automatic hooking and automatic releasing of goods, is easy to use, highly efficient, and saves time and effort.

[0008] On the basis of the above technical solution, the present invention can also be improved as follows.

[0009] Furthermore, the box body is a T-shaped box body, and the T-shaped box body includes a horizontal section and a vertical section, the horizontal section is horizontally arranged; the vertical section is vertically arranged, and its upper end is fixedly connected to the horizontal section; the rear section hook tooth is installed on the vertical section.

[0010] The beneficial effect of adopting the above further solution is that the structural design of the above box is reasonable, which is convenient for assembling various components on the box and assembling the box itself on the lifting device, and the assembly is convenient.

[0011] Furthermore, the interior of the vertical section is hollow and the lower end is open, and one end of the rear section hook tooth is rotatably connected to the lower end of the vertical section; a flip driving component is installed in the vertical section, and the two ends of the flip driving component are respectively rotatably connected to the inner wall of the vertical section and one side of one end of the rear section hook tooth.

[0012] The beneficial effect of adopting the above further scheme is that during use, the flip driving member is used to drive the rear hook teeth to flip up and down and position, which is convenient and efficient; in addition, the flip driving member is assembled in the vertical section, which saves space and is neat and beautiful.

[0013] Furthermore, one end of the rear section hook tooth is provided with a groove penetrating on both sides, the lower end of the vertical section extends into the groove and is rotatably connected to both sides of the groove through a pin shaft; an extension part extends from one side of one end of the rear section hook tooth, and one end of the flipping drive member is rotatably connected to the extension part.

[0014] The beneficial effect of adopting the above further scheme is simple structure and reasonable design. The extension part is used to connect the flip driving member with one end of the rear hook tooth, so that the flip driving member drives the rear hook tooth to flip up and down, which is convenient for operation.

[0015] Furthermore, a protrusion extends from the other end of the rear section hook tooth, and a limit block is fixedly installed on the other end of the rear section hook tooth; one end of the front section hook tooth is rotatably connected to the protrusion, and one end of it is fixedly connected to a baffle, and when the front section hook tooth rotates to a horizontal state, the baffle abuts against the limit block.

[0016] The beneficial effect of adopting the above further scheme is simple structure and reasonable design. The limit block and the baffle cooperate to realize that the front hook teeth do not need to be flipped downward after rotating to a horizontal state, but the front hook teeth can be flipped upward to unload the cargo.

[0017] Furthermore, one end of the rear hook tooth can be rotated to a horizontal state and positioned.

[0018] The beneficial effect of adopting the above further solution is that one end of the rear hook tooth is rotatably connected to the lower end of the vertical section, which is convenient for assembly and avoids mutual interference.

[0019] Furthermore, a slot is provided at the lower end of the vertical section, the interior of the rear section hook tooth is hollow and one end is open, and a limit drive component is installed inside; a driving end of the limit drive component is fixedly connected with a pin, and when the rear section hook tooth rotates to a horizontal state, the limit drive component drives the pin to move to insert into or exit the slot.

[0020] The beneficial effect of adopting the above further solution is that when carrying goods, the limit drive member is used to drive the pin to move into the slot, so that the pin bears the gravity of the goods, avoiding that the gravity of the goods is all concentrated on the flip drive member, thereby extending the service life of the flip drive member.

[0021] The utility model also relates to a self-balancing sling, comprising a bracket, four cables and the novel C-shaped hook structure as described above, wherein a plurality of boxes are evenly spaced and fixedly installed on the bracket along the direction from one end of the bracket to the other end; the lower ends of two of the cables are connected to one side of the bracket, and the lower ends of the remaining two cables are respectively connected to the other side of the bracket, and are distributed opposite to two of the cables in pairs; the lower ends of the remaining two cables can be horizontally slid and positioned along the direction from one side of the bracket to the other side.

[0022] The beneficial effect of adopting the above further scheme is that the utility model also provides a self-balancing sling, which has a simple structure and a reasonable design, can realize automatic hooking and automatic release of goods, and can realize automatic balancing of the entire sling, avoiding the sling from tilting due to the offset of the center of gravity. It is easy to use, efficient, and saves time and effort.

[0023] Furthermore, two sliding rods are relatively fixedly installed on the bracket, and the two sliding rods extend horizontally from one side of the bracket to the other side; the two sliding rods are respectively provided with sliding sleeves that can slide and position, and the lower ends of the remaining two cables are respectively connected to the two sliding sleeves.

[0024] The beneficial effect of adopting the above further solution is that the structure is simple and the design is reasonable. The horizontal sliding design of two sliding sleeves and two sliding rods is used to adjust the positions of the corresponding two cables, thereby ensuring the balance of the entire lifting device.

[0025] Furthermore, two screw assemblies are relatively fixedly installed on the bracket, and the two sliding sleeves are respectively fixedly connected to the sliders on the two screw assemblies; it also includes a remote control and an angle sensor, and the angle sensor is fixedly installed at the center of the bracket, and the two motors in the two screw assemblies are respectively communicated with the remote control.

[0026] The beneficial effects of adopting the above further scheme are simple structure, reasonable design, using two lead screw assemblies to realize the horizontal movement and positioning of the two sliding sleeves on the two sliding rods, high degree of automation, and very convenient operation;

[0027] In addition, during the cargo loading process, an angle sensor is used to detect the horizontal inclination of the bracket. When the bracket tilts, the angle sensor sends a corresponding signal to the remote control, and the remote control controls the two motors to rotate forward or reverse to adjust the position of the corresponding two sliding sleeves. BRIEF DESCRIPTION OF THE DRAWINGS

[0028] Figure 1 This is a schematic diagram of the overall structure of the C-type hook in the utility model in state 1;

[0029] Figure 2This is a schematic diagram of the overall structure of the C-type hook in the second state of the utility model;

[0030] Figure 3 It is a structural schematic diagram of the box body in the utility model;

[0031] Figure 4 This is one of the structural schematic diagrams of the front hook teeth in the utility model;

[0032] Figure 5 This is the second structural diagram of the front hook teeth in the utility model;

[0033] Figure 6 This is a schematic diagram of the structure of the middle and rear hook teeth of the utility model;

[0034] Figure 7 This is a schematic diagram of the overall structure of the C-type hook in the utility model when carrying goods;

[0035] Figure 8 It is a schematic diagram of the overall structure of the C-type hook in the utility model when releasing cargo;

[0036] Fig. 9 It is a three-dimensional structural schematic diagram of the lifting device in the utility model;

[0037] Fig.10 It is a side view of the sling in the utility model.

[0038] In the accompanying drawings, the components represented by the reference numerals are listed as follows:

[0039] 1. Box body; 2. Front hook teeth; 3. Rear hook teeth; 4. Flip drive; 5. Extension; 6. Limit block; 7. Baffle; 8. Limit drive; 9. Latch; 10. Slot; 11. Bracket; 12. Cable; 13. Slide rod; 14. Sleeve; 15. Screw assembly; 16. Cargo. DETAILED DESCRIPTION

[0040] It should be noted that, in the absence of conflict, the embodiments of the present invention and the features in the embodiments can be combined with each other.

[0041] In the description of the present utility model, it should be understood that the terms "center", "longitudinal", "lateral", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside" and the like indicate positions or positional relationships based on the positions or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present utility model and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the present utility model. In addition, the terms "first", "second", etc. are only used for descriptive purposes, and cannot be understood as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Therefore, features defined as "first", "second", etc. may explicitly or implicitly include one or more of the features. In the description of the present utility model, unless otherwise specified, "multiple" means two or more.

[0042] In the description of the present invention, it should be noted that, unless otherwise clearly specified and limited, the terms "installation", "connection" and "connection" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or it can be an indirect connection through an intermediate medium, or it can be the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood by specific circumstances.

[0043] The present invention will be described in detail below with reference to the accompanying drawings and in combination with embodiments.

[0044] Example 1

[0045] like Figures 1 to 8 As shown, this embodiment provides a new C-type hook structure, including a box body 1, a front hook tooth 2 and a rear hook tooth 3, the rear hook tooth 3 can be turned upside down and positioned on the box body 1, and the front hook tooth 2 can be turned upside down and positioned on the rear hook tooth 3.

[0046] During use, the front hook teeth 2 and the rear hook teeth 3 are respectively rotated to a horizontal state and positioned to hook the carried cargo 16; when unloading the cargo 16, the rear hook teeth 3 are rotated to a vertical state, and the front hook teeth 2 are rotated downward to release the cargo 16.

[0047] This embodiment has a simple structure and a reasonable design, can realize automatic hooking and automatic release of the cargo 16, and is easy to use, highly efficient, and saves time and effort.

[0048] Example 2

[0049] On the basis of Example 1, in this embodiment, the box body 1 is a T-shaped box body 1, and the T-shaped box body includes a horizontal section and a vertical section, the horizontal section is horizontally arranged; the vertical section is vertically arranged, and its upper end is fixedly connected to the horizontal section; the rear section hook tooth 3 is installed on the vertical section.

[0050] The structural design of the box body 1 is reasonable, which is convenient for assembling the various components on the box body 1 and assembling the box body 1 itself on the lifting device, and the assembly is convenient.

[0051] Preferably, in this embodiment, the horizontal segment and the vertical segment are preferably rectangular structures respectively.

[0052] In addition, the upper end of the vertical section is connected to the horizontal section at a location close to one end of the horizontal section.

[0053] Example 3

[0054] On the basis of Example 2, in this embodiment, the interior of the vertical section is hollow and the lower end is open, and one end of the rear section hook tooth 3 is rotatably connected to the lower end of the vertical section; a flipping drive member 4 is installed in the vertical section, and the two ends of the flipping drive member 4 are respectively rotatably connected to the inner wall of the vertical section and one side of one end of the rear section hook tooth 3.

[0055] During use, the flip driving member 4 is used to drive the rear hook teeth 3 to flip up and down and position, which is convenient and efficient. In addition, the flip driving member 4 is assembled in the vertical section, which saves space and is neat and beautiful.

[0056] Preferably, in this embodiment, the above-mentioned flip driving member 4 is preferably an electric push rod.

[0057] Example 4

[0058] On the basis of Example 3, in this embodiment, one end of the rear section hook tooth 3 is provided with a groove penetrating on both sides, the lower end of the vertical section extends into the groove and is rotatably connected to both sides of the groove through a pin shaft; an extension part 5 extends from one side of one end of the rear section hook tooth 3, and one end of the flipping drive member 4 is rotatably connected to the extension part 5.

[0059] This solution has a simple structure and reasonable design. The extension part 5 is used to connect the flip driving member 4 with one end of the rear hook tooth 3 so that the flip driving member 4 drives the rear hook tooth 3 to flip up and down, which is convenient for operation.

[0060] Preferably, in this embodiment, the extension portion 5 is preferably a long strip plate-like structure, which extends along the length direction of the rear hook tooth 3 .

[0061] In addition, the extension portion 5 can be designed as a separate body from the rear hook tooth 3 , or can be formed as a single piece with the rear hook tooth 3 .

[0062] Preferably, in this embodiment, the flip driving member 4 is preferably an electric push rod, and both ends of the electric push rod are rotatably connected to the inner wall of the vertical section and one end of the extension portion 5 respectively.

[0063] Alternatively, the above-mentioned turning driving member 4 may also adopt an oil cylinder or a pneumatic cylinder to replace the above-mentioned electric push rod.

[0064] Example 5

[0065] On the basis of any one of Examples 3 to 4, in this embodiment, a protrusion extends from the other end of the rear section hook tooth 3, and a limiting block 6 is fixedly installed on the other end of the rear section hook tooth 3; one end of the front section hook tooth 2 is rotatably connected to the protrusion, and one end thereof is fixedly connected to a baffle 7, and when the front section hook tooth 2 rotates to a horizontal state, the baffle 7 abuts against the limiting block 6.

[0066] This solution has a simple structure and a reasonable design. The limit block 6 cooperates with the baffle plate 7 to ensure that the front hook tooth 2 cannot be turned downward after rotating to a horizontal state, but the front hook tooth 2 can be turned upward to unload the cargo 16.

[0067] Preferably, in this embodiment, the rear hook teeth 3 are preferably of a structure with one end being thick and the other end being thin.

[0068] In addition, the above-mentioned limiting block 6 is preferably a rectangular block, which is fixedly installed on the corresponding position of the rear hook tooth 3.

[0069] Preferably, in this embodiment, the maximum flipping angle of the front hook teeth 2 is 90°.

[0070] Example 6

[0071] On the basis of any one of Embodiments 3 to 5, in this embodiment, the rear hook teeth 3 can be rotated to a horizontal state and positioned.

[0072] One end of the rear hook tooth 3 is rotatably connected to the lower end of the vertical section, which is convenient for assembly and avoids mutual interference.

[0073] Example 7

[0074] On the basis of Example 6, in this embodiment, a slot 10 is provided at the lower end of the vertical section, the interior of the rear section hook tooth 3 is hollow and one end is open, and a limit drive component 8 is installed inside; the driving end of the limit drive component 8 is fixedly connected with a pin 9, and when the rear section hook tooth 3 rotates to a horizontal state, the limit drive component 8 drives the pin 9 to move to insert into or exit the slot 10.

[0075] When carrying goods 16, the limit drive 8 is used to drive the latch 9 to move into the slot 10, so that the latch 9 bears the weight of the goods 16, avoiding that the weight of the goods 16 is all concentrated on the flip drive 4, thereby extending the service life of the flip drive 4.

[0076] Preferably, in this embodiment, the above-mentioned limit driving member 8 is preferably an electric push rod, which is fixedly installed in the rear hook tooth 3, and the telescopic end of the push rod extends from one end to the other end of the rear hook tooth 3.

[0077] Based on the above scheme, the main force-bearing structures in this embodiment are the limit block 6 and the latch 9, and the electric push rod in the T-shaped box is not subjected to force, which can prevent the electric push rod from being damaged by excessive force under heavy load conditions.

[0078] Example 8

[0079] Based on the above embodiments, Fig. 9 and Fig.10 As shown, the present embodiment further provides a self-balancing sling, comprising a bracket 11, four cables 12 and the novel C-hook structure as described above, wherein a plurality of the boxes 1 are evenly spaced and fixedly mounted on the bracket 11 in a direction from one end of the bracket 11 to the other end; wherein the lower ends of two of the cables 12 are connected to one side of the bracket 11, and the lower ends of the remaining two cables 12 are respectively connected to the other side of the bracket 11, and are distributed opposite to two of the cables 12 in pairs; and the lower ends of the remaining two cables 12 can slide horizontally and be positioned in a direction from one side of the bracket 11 to the other side.

[0080] Preferably, in this embodiment, the bracket comprises two square steels, which are horizontally arranged side by side, and their portions near both ends are fixedly connected by connecting square steels.

[0081] In addition, the locations where the four cables 12 are connected to the two square steels are respectively located between the two connecting square steels.

[0082] Moreover, the multiple C-shaped hooks are evenly spaced and distributed along the length direction of the two square steels, and the two ends of the horizontal sections of the multiple C-shaped hooks are respectively fixedly connected to the two square steels.

[0083] The two square steels and the two connecting square steels form a frame structure, and the dimensions of the frame are: length 10000mm, width 1300mm.

[0084] The present embodiment also provides a self-balancing sling, which has a simple structure and reasonable design. It can realize automatic hooking and automatic release of cargo 16, and can realize automatic balancing of the entire sling, avoiding the sling from tilting due to the shift of the center of gravity. It is easy to use, efficient, and saves time and effort.

[0085] Example 9

[0086] On the basis of Example 8, in this embodiment, two sliding rods 13 are relatively fixedly installed on the bracket 11, and the two sliding rods 13 extend horizontally from one side of the bracket 11 to the other side; the two sliding rods 13 are respectively provided with sliding sleeves 14 that can slide and position, and the lower ends of the remaining two cables 12 are respectively connected to the two sliding sleeves 14.

[0087] This solution has a simple structure and a reasonable design. The horizontal sliding design of the two sliding sleeves 14 and the two sliding rods 13 is used to adjust the positions of the corresponding two cables 12, thereby ensuring the balance of the entire lifting device.

[0088] Preferably, in this embodiment, the two sliding rods 13 are spaced apart and distributed between the two square steels, and both ends thereof are fixedly connected to the two square steels respectively.

[0089] In addition, the two slide bars 13 are preferably square steel structures, and the distance between them is 3000 mm.

[0090] Preferably, in this embodiment, the lower ends of two of the cables 12 are connected to the corresponding square steels through lifting ears, and the lower ends of the remaining two cables 12 are connected to the two sliding sleeves 14 through lifting ears.

[0091] The distance between two lifting eyes on the same square steel is 3500mm.

[0092] Example 10

[0093] On the basis of Example 9, in this embodiment, two screw assemblies 15 are relatively fixedly installed on the bracket 11, and the two sliding sleeves 14 are respectively fixedly connected to the sliders on the two screw assemblies 15; a remote control and an angle sensor are also included, and the angle sensor is fixedly installed at the center of the bracket 11, and the two motors in the two screw assemblies 15 are respectively communicated with the remote control.

[0094] The scheme has a simple structure and a reasonable design. Two lead screw assemblies 15 are used to realize the horizontal movement and positioning of two sliding sleeves 14 on two sliding rods 13. The scheme has a high degree of automation and is very convenient to operate.

[0095] In addition, during the loading process of the cargo 16, an angle sensor is used to detect the horizontal inclination of the bracket 11. When the bracket 11 tilts, the angle sensor sends a corresponding signal to the remote control, and the remote control controls the two motors to rotate forward or reverse to adjust the positions of the corresponding two sliding sleeves.

[0096] Based on the above solution, when the bracket 11 remains horizontal, the inclination angle of the bracket 11 is zero; when the absolute value of the inclination angle of the bracket 11 is greater than zero, it indicates that the bracket 11 is tilted, and the angle of the bracket 11 needs to be adjusted.

[0097] Preferably, in this embodiment, each lead screw assembly 15 includes a motor and a lead screw, the lead screw is horizontally installed between two square steels, and its two ends are rotatably connected to the two square steels respectively, the motor is fixedly installed on any one of the square steels, and its driving end extends along the axial direction of the lead screw and is fixedly connected to one end of the lead screw, and is used to drive the lead screw to rotate around its own axial direction; the two lead screws are relatively distributed on the side away from each other of the two slide rods 13. The two sliding sleeves 14 are fixedly connected to the sliders threadedly sleeved on the two lead screws respectively. This scheme uses the opening and closing of the motor to realize the rotation and stop of the lead screw, thereby realizing the positioning of the sliding sleeve 14.

[0098] Based on the above scheme, the remote control in this embodiment (equivalent to the controller in the prior art) can be respectively connected to the above-mentioned flip drive 4, limit drive 8 and the motors in the two screw assemblies to achieve remote control.

[0099] The working principle of the utility model is as follows:

[0100] When carrying the cargo 16, the flip driving member 4 drives the rear hook tooth 3 to flip upward to a horizontal state, and at the same time, the limit driving member 8 drives the latch 9 to insert into the slot 10 to realize the positioning of the rear hook tooth 3; at the same time, the front hook tooth 2 flips downward to a horizontal state under the action of its own gravity, and is positioned by the limit block 6 and the baffle 7 to carry the cargo 16;

[0101] When unloading, the flip driving member 4 drives the rear hook teeth 3 to rotate downward to a vertical state, and at the same time, the front hook teeth 2 automatically bend under the automatic gravity and the obstruction of the goods 16 to unload the goods 16.

[0102] It should be noted that all electronic components involved in the present invention adopt the existing technology, and the above-mentioned components are electrically connected to the controller, and the control circuit between the controller and each component is the existing technology.

[0103] It is obvious to those skilled in the art that the present invention is not limited to the details of the exemplary embodiments described above, and that the present invention can be implemented in other specific forms without departing from the spirit or essential features of the present invention. Therefore, the embodiments should be regarded as exemplary and non-restrictive from any point of view, and the scope of the present invention is defined by the appended claims rather than the above description, and it is intended that all changes falling within the meaning and scope of the equivalent elements of the claims be included in the present invention. Any reference numeral in a claim should not be regarded as limiting the claim to which it relates.

[0104] In addition, it should be understood that although the present specification is described according to implementation modes, not every implementation mode contains only one independent technical solution. This description of the specification is only for the sake of clarity. Those skilled in the art should regard the specification as a whole. The technical solutions in each embodiment may also be appropriately combined to form other implementation modes that can be understood by those skilled in the art.

[0105] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

Claims

1. A new type of C-hook structure, characterized by: The invention comprises a box body (1), a front hook tooth (2) and a rear hook tooth (3); the rear hook tooth (3) can be turned upside down and installed on the box body (1); and the front hook tooth (2) can be turned upside down and installed on the rear hook tooth (3).

2. The novel C-hook structure according to claim 1 is characterized in that: The box body (1) is a T-shaped box body (1), and the T-shaped box body comprises a horizontal section and a vertical section, wherein the horizontal section is arranged horizontally; the vertical section is arranged vertically, and its upper end is fixedly connected to the horizontal section; the rear section hook tooth (3) is installed on the vertical section.

3. The novel C-hook structure according to claim 2 is characterized in that: The interior of the vertical section is hollow and the lower end is open, and one end of the rear section hook tooth (3) is rotatably connected to the lower end of the vertical section; a flip driving member (4) is installed in the vertical section, and the two ends of the flip driving member (4) are respectively rotatably connected to the inner wall of the vertical section and one side of one end of the rear section hook tooth (3).

4. The novel C-hook structure according to claim 3 is characterized in that: One end of the rear hook tooth (3) is provided with a groove penetrating on both sides, and the lower end of the vertical section extends into the groove and is rotatably connected to both sides of the groove via a pin shaft; an extension part (5) extends from one side of one end of the rear hook tooth (3), and one end of the flip driving member (4) is rotatably connected to the extension part (5).

5. The novel C-hook structure according to claim 3 is characterized in that: A protrusion extends from the other end of the rear hook tooth (3), and a limit block (6) is fixedly installed on the other end of the rear hook tooth (3); one end of the front hook tooth (2) is rotatably connected to the protrusion, and one end of the front hook tooth (2) is fixedly connected to a baffle (7); when the front hook tooth (2) rotates to a horizontal state, the baffle (7) abuts against the limit block (6).

6. The novel C-hook structure according to claim 3 is characterized in that: The rear hook teeth (3) can be rotated to a horizontal state and positioned.

7. The novel C-hook structure according to claim 6 is characterized in that: A slot (10) is provided at the lower end of the vertical section, the interior of the rear section hook tooth (3) is hollow and one end is open, and a limit drive component (8) is installed inside the rear section hook tooth (3); a driving end of the limit drive component (8) is fixedly connected to a latch (9), and when the rear section hook tooth (3) rotates to a horizontal state, the limit drive component (8) drives the latch (9) to move to insert into or exit from the slot (10).

8. A self-balancing sling, characterized in that: It comprises a bracket (11), four cables (12) and a novel C-shaped hook structure as described in any one of claims 1 to 7, wherein a plurality of boxes (1) are evenly spaced and fixedly installed on the bracket (11) in a direction from one end of the bracket (11) to the other end; wherein the lower ends of two of the cables (12) are connected to one side of the bracket (11), and the lower ends of the remaining two cables (12) are respectively connected to the other side of the bracket (11), and are distributed opposite to two of the cables (12); and the lower ends of the remaining two cables (12) can slide horizontally and be positioned in a direction from one side of the bracket (11) to the other side.

9. The self-balancing sling according to claim 8, characterized in that: Two slide bars (13) are relatively fixedly mounted on the bracket (11), and the two slide bars (13) extend horizontally from one side of the bracket (11) to the other side; the two slide bars (13) are respectively provided with slide sleeves (14) which can slide and position, and the lower ends of the remaining two cables (12) are respectively connected to the two slide sleeves (14).

10. The self-balancing sling according to claim 9, characterized in that: The bracket (11) is also relatively fixedly mounted with two lead screw assemblies (15), and the two sliding sleeves (14) are respectively fixedly connected to the sliders on the two lead screw assemblies (15); and also includes a remote controller and an angle sensor, wherein the angle sensor is fixedly mounted at the center of the bracket (11), and is respectively communicatively connected with the two motors in the two lead screw assemblies (15) and the remote controller.

Images