Adjustable C-shaped hook

Abstract

The utility model discloses an adjustable C-shaped hook, and relates to the technical field of hoisting tools, the adjustable C-shaped hook comprises a hoisting ring and a hook body, and a first connecting rope, a second connecting rope and a third connecting rope are connected between the hoisting ring and the hook body; the connecting point of the second connecting rope on the hook body is located between the connecting point of the first connecting rope on the hook body and the connecting point of the third connecting rope on the hook body, the three connecting points are arranged at intervals, the length of the second connecting rope is the same as that of the third connecting rope, the length of the first connecting rope is larger than that of the second connecting rope, and the length of the third connecting rope is larger than that of the third connecting rope. The first connecting rope is further provided with an adjusting device used for adjusting the length of the first connecting rope. Along with the adjustment of the length of the first connecting rope, the balance of the hook body can be maintained by the first connecting rope and the third connecting rope in the no-load state, and the balance of the hook body can be maintained by the second connecting rope and the third connecting rope in the unbalance loading state. Therefore, the purpose of balancing during no-load and unbalance-load is achieved.

Description

Technical Field

[0001] The invention relates to the technical field of lifting tools, in particular to an adjustable C-shaped hook. Background Art

[0002] The existing C-type slings used for lifting steel coils are usually C-type hooks designed based on steel coils with fixed width, that is, the C-type hook adopts a "fixed lifting point + counterweight" structural design. This structural design usually uses a counterweight to balance the eccentric load and the deadweight of the C-type hook itself to achieve a static empty-load balance state, or a full-load balance state when lifting a fixed width.

[0003] An optimized C-hook on this basis cancels the counterweight design and uses a spring design instead, which can ensure that the C-hook can reach a balanced state when hanging sheets of different widths. However, this C-hook design will form a large elevation angle when unloaded, which will cause inconvenience in operation during the hoisting and coiling operation and bring the risk of possible damage to the coiled material.

[0004] The above two different C-hook design concepts can only ensure balance in one state (i.e., no-load or partial-load). For the lifting of steel coils of various specifications and widths encountered in core production enterprises, it is impossible to achieve the purpose of balancing both when no-loaded and when partial-loaded. Utility Model Content

[0005] In view of the above-mentioned shortcomings of the prior art, an object of the present invention is to provide an adjustable C-hook to solve one or more problems in the prior art.

[0006] To achieve the above object, the technical solution of the present invention is as follows:

[0007] An adjustable C-type hook comprises a lifting ring and a hook body, wherein a first connecting rope, a second connecting rope and a third connecting rope are connected between the lifting ring and the hook body, wherein a connection point of the second connecting rope on the hook body is between a connection point of the first connecting rope on the hook body and a connection point of the third connecting rope on the hook body, and the three connection points are arranged at intervals, a length of the second connecting rope is the same as a length of the third connecting rope, a length of the first connecting rope is greater than a length of the second connecting rope, and an adjusting device for adjusting the length of the first connecting rope is also arranged on the first connecting rope.

[0008] Through the above technical solution, as the length of the first connecting rope is adjusted, the first connecting rope and the third connecting rope can maintain the balance of the hook body when it is unloaded, and the second connecting rope and the third connecting rope can maintain the balance of the hook body when it is unloaded, thereby achieving the purpose of taking into account both the balance when unloaded and the balance when unloaded.

[0009] Furthermore, the hook body includes a connecting part, a coupling part and a bearing part, the connecting part and the bearing part are arranged in parallel, the two ends of the coupling part are respectively connected to the ends on the same side of the connecting part and the bearing part, and the first connecting rope, the second connecting rope and the third connecting rope are all connected to the connecting part.

[0010] Furthermore, the connecting portion is provided with a plurality of adjustment gears, and the plurality of adjustment gears are arranged in sequence along the length direction of the connecting portion, and the end portion of the second connecting rope connected to the hook body is movably connected to any one of the adjustment gears.

[0011] Through the above technical solution, according to the different widths and masses of the steel coils transported by the hook body, adjustment gears at different positions are selected to connect the second connecting rope, so that the hook body in an overloaded state can maintain the balance of the steel coil.

[0012] Furthermore, a through slot penetrating the connecting part is provided on the side wall in the width direction of the connecting part, and a plurality of grooves are provided on the side wall of the through slot away from the load-bearing part, and the grooves are for adjusting gear positions. A shackle is provided on the end of the second connecting rope away from the lifting ring, and the shackle on the second connecting rope is passed through the through slot.

[0013] Furthermore, the adjusting device is a turnbuckle, and the first connecting rope includes a first connecting section and a second connecting section, one end of the first connecting section is connected to one end of the turnbuckle, the other end of the first connecting section is connected to the lifting ring, one end of the second connecting section is connected to the end of the turnbuckle away from the first connecting section, and the other end of the second connecting section is connected to the hook body.

[0014] Through the above technical solution, the length of the first connecting rope can be quickly adjusted with the help of the basket screw, reducing the impact on work efficiency.

[0015] Furthermore, the bearing part is a blackened part, the bearing part is welded to the connecting part, and a reinforcing rib is arranged between the bearing part and the connecting part.

[0016] Furthermore, an anti-sliding block is provided on a side of the bearing portion facing the connecting portion, and the anti-sliding block is located on a side of the bearing portion away from the connecting portion.

[0017] Through the above technical solution, when the hook body carries the steel coil, the anti-sliding block limits the steel coil to a certain extent, thereby reducing the possibility of the steel coil falling off the hook body.

[0018] Furthermore, an anti-collision strip is provided on the connecting portion, and the anti-collision strip is located on a side of the connecting portion facing the bearing portion.

[0019] Through the above technical solution, the anti-collision strip can avoid rigid collision between the steel coil and the connecting part, reducing the possibility of damage to the hook body.

[0020] Compared with the prior art, the beneficial technical effects of the present invention are as follows: By using two different adjustment methods, it is ensured that the C-shaped hook can reach a balanced state whether it is under no-load or off-load conditions. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] Figure 1 FIG. 1 shows an overall schematic diagram of an adjustable C-shaped hook provided by an embodiment of the present invention.

[0022] Figure 2 FIG. 2 shows a partial structural cross-sectional view of the adjusting device provided by an embodiment of the present invention.

[0023] Reference numerals: 1, lifting ring; 2, hook body; 21, connecting portion; 211, through groove; 212, groove; 22, connecting portion; 23, bearing portion; 3, first connecting rope; 4, second connecting rope; 5, third connecting rope; 6, adjusting device; 61, first connecting rod; 62, main body frame; 63, second connecting rod; 7, anti-slip block; 8, anti-collision strip. DETAILED DESCRIPTION OF THE INVENTION

[0024] An adjustable C-shaped hook, see Figure 1 , comprising a lifting ring 1 and a hook body 2. A first connecting rope 3, a second connecting rope 4 and a third connecting rope 5 are connected between the lifting ring 1 and the hook body 2. The connection point of the second connecting rope 4 on the hook body 2 is between the connection point of the first connecting rope 3 on the hook body 2 and the connection point of the third connecting rope 5 on the hook body 2, and the three connection points are spaced apart. The length of the second connecting rope 4 is the same as the length of the third connecting rope 5, the length of the first connecting rope 3 is greater than the length of the second connecting rope 4, and an adjusting device 6 for adjusting the length of the first connecting rope 3 is further provided on the first connecting rope 3.

[0025] In the no-load state, by adjusting the device 6 to shorten the length of the first connecting rope 3, so that the length of the first connecting rope 3 is the same as the length of the third connecting rope 5. At this time, the second connecting rope 4 is in a slack state, and the balanced state of the C-shaped hook is achieved by the first connecting rope 3 and the second connecting rope 4. Due to the eccentric self-weight of the C-shaped hook, there is still a slight elevation angle, but the elevation angle amplitude is significantly improved, which is convenient for the operation of lifting the coil.

[0026] In the off-load state, by adjusting the device 6 to increase the length of the first connecting rope 3, so that the length of the first connecting rope 3 is longer than the lengths of the second connecting rope 4 and the third connecting rope 5. At this time, the lengths of the second connecting rope 4 and the third connecting rope 5 are the same, and the first connecting rope 3 is in a slack and non-loaded state. The C-shaped hook is balanced by the second connecting rope 4 and the third connecting rope 5.

[0027] See Figure 1, the hook body 2 includes a connecting portion 21, an abutting portion 22 and a bearing portion 23. The connecting portion 21 and the bearing portion 23 are arranged in parallel. The two ends of the abutting portion 22 are respectively connected to the ends on the same side of the connecting portion 21 and the bearing portion 23, making the whole hook body 2 in a C shape. Among them, the connecting portion 21 and the abutting portion 22 are integrally arranged, and the abutting portion 22 and the bearing portion 23 are fixed together by welding. And to improve the connection strength, a reinforcing rib is also provided between the bearing portion 23 and the abutting portion 22.

[0028] The first connecting rope 3, the second connecting rope 4 and the third connecting rope 5 are all steel ropes. To reduce the loss caused by direct friction, butterfly clips are installed at both ends of the steel rope. One end of the steel rope is connected to the hanging ring 1 through the butterfly clip. After the other end of the steel rope is connected to the shackle through the butterfly clip, it is then connected to the connecting portion 21 through the shackle.

[0029] The shackle on the first connecting rope 3 far from the hanging ring 1 is connected to the end of the connecting portion 21 close to the abutting portion 22, and the shackle on the third connecting rope 5 far from the hanging ring 1 is connected to the end of the connecting portion 21 far from the abutting portion 22.

[0030] A through groove 211 penetrating the connecting portion 21 is formed on the side wall in the width direction of the connecting portion 21. A plurality of grooves 212 are sequentially formed on the side wall of the through groove 211 far from the bearing portion 23 along the length direction of the connecting portion 21. The shackle on the second connecting rope 4 far from the hanging ring 1 is threaded through the through groove 211 and embedded in any one of the grooves 212. By changing the position of the groove 212 where the second connecting rope 4 is located, when the first connecting rope 3 is in a slack and unloaded state, the angle between the second connecting rope 4 and the third connecting rope 5 can be adjusted according to different load conditions, so that the center of gravity of the steel coil is in the middle of the second connecting rope 4 and the third connecting rope 5, ensuring that the center of gravity of the hanging ring 1 and the steel coil is on a vertical line, achieving the purpose of balance and reducing the risk of the steel coil slipping. Therefore, the groove 212 on the connecting portion 21 is defined as an adjustment gear.

[0031] The adjusting device 6 is a turnbuckle. See Figure 2 , the turnbuckle includes a first connecting rod 61, a main body frame 62 and a second connecting rod 63. One ends of the first connecting rod 61 and the second connecting rod 63 are respectively threadedly connected to both ends of the main body frame 62.

[0032] The first connecting rope 3 includes a first connecting section and a second connecting section. One end of the first connecting section is connected to the end of the first connecting rod 61 far from the main body frame 62. The other end of the first connecting section is connected to the hanging ring 1 through a shackle. One end of the second connecting section is connected to the end of the second connecting rod 63 far from the main body frame 62. The other end of the second connecting section is connected to the connecting portion 21 through a shackle.

[0033] See Figure 1, the bearing part 23 is a blackened part, and an anti-slip block 7 is installed on one side of the bearing part 23 away from the connecting part 22. The main structure of the anti-slip block 7 is fixed on the bearing part 23 by bolts, and the end of the anti-slip block 7 facing the connecting part 21 extends towards the connecting part 21 to protrude from the bearing part 23.

[0034] An anti-collision strip 8 is provided on the connecting part 22, and the anti-collision strip 8 is fixed on the side of the connecting part 22 facing the bearing part 23 by bolts. The anti-collision strip 8 is made of PU material and has good anti-collision and buffering effects.

[0035] The technical features of the above-described embodiments can be combined arbitrarily. For the sake of brevity of description, not all possible combinations of the technical features in the above-described embodiments are described. However, as long as there is no contradiction in the combination of these technical features, it should be considered to be within the scope described in this specification.

[0036] The above-described embodiments only represent several implementation manners of the present invention, and their descriptions are relatively specific and detailed, but they should not be construed as limiting the scope of the invention patent. It should be noted that for those of ordinary skill in the art, without departing from the concept of the present invention, several deformations and improvements can still be made, and these all belong to the protection scope of the present invention. Therefore, the protection scope of the present invention patent shall be subject to the appended claims.

Claims

1. An adjustable C-hook, characterized in that: It includes a lifting ring (1) and a hook body (2). A first connecting rope (3), a second connecting rope (4) and a third connecting rope (5) are connected between the lifting ring (1) and the hook body (2). The connecting point of the second connecting rope (4) on the hook body (2) is between the connecting point of the first connecting rope (3) on the hook body (2) and the connecting point of the third connecting rope (5) on the hook body (2), and the three connecting points are spaced apart. The length of the second connecting rope (4) is the same as that of the third connecting rope (5). The length of the first connecting rope (3) is greater than that of the second connecting rope (4). An adjusting device (6) for adjusting the length of the first connecting rope (3) is also provided on the first connecting rope (3).

2. The adjustable C-shaped hook according to claim 1, characterized in that: The hook body (2) includes a connecting portion (21), a connecting part (22) and a bearing portion (23). The connecting portion (21) and the bearing portion (23) are arranged in parallel. Two ends of the connecting part (22) are respectively connected to the ends on the same side of the connecting portion (21) and the bearing portion (23). The first connecting rope (3), the second connecting rope (4) and the third connecting rope (5) are all connected to the connecting portion (21).

3. The adjustable C-shaped hook according to claim 2, characterized in that: A plurality of adjusting positions are provided on the connecting portion (21), and the plurality of adjusting positions are arranged in sequence along the length direction of the connecting portion (21). The end of the second connecting rope (4) connected to the hook body (2) is movably connected to any one of the adjusting positions.

4. The adjustable C-shaped hook according to claim 3, wherein: A through groove (211) penetrating the connecting portion (21) is formed on the side wall in the width direction of the connecting portion (21). A plurality of grooves (212) are formed on the side wall of the through groove (211) away from the bearing portion (23). The grooves (212) are the adjusting positions. A shackle is provided at the end of the second connecting rope (4) away from the lifting ring (1). The shackle on the second connecting rope (4) is inserted into the through groove (211).

5. The adjustable C-shaped hook according to claim 2, characterized in that: The adjusting device (6) is a turnbuckle. The first connecting rope (3) includes a first connecting section and a second connecting section. One end of the first connecting section is connected to one end of the turnbuckle. The other end of the first connecting section is connected to the lifting ring (1). One end of the second connecting section is connected to the end of the turnbuckle away from the first connecting section. The other end of the second connecting section is connected to the hook body (2).

6. The adjustable C-shaped hook according to claim 2, wherein: The bearing portion (23) is a blackened part. The bearing portion (23) is welded to the connecting part (22), and a reinforcing rib is provided between the bearing portion (23) and the connecting part (22).

7. The adjustable C-shaped hook according to claim 2, wherein: An anti-slip block (7) is provided on the side of the bearing portion (23) facing the connecting portion (21), and the anti-slip block (7) is on the side of the bearing portion (23) away from the connecting part (22).

8. The adjustable C-shaped hook according to claim 2, characterized in that: An anti-collision strip (8) is provided on the connecting part (22), and the anti-collision strip (8) is on the side of the connecting part (22) facing the bearing portion (23).

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