Crown block hook anti-falling device convenient for remote unhooking

Abstract

The utility model discloses a crown block hook anti-drop device convenient for remote unhooking, which comprises an anti-drop rod, a hook body is arranged outside the anti-drop rod, a connecting shaft is arranged at the top end of the hook body, a rotating component is arranged at one end of the anti-drop rod, a first fixing block is arranged on the inner wall of the hook body, the rotating component comprises a rotating rod, and a driving piece is arranged inside the rotating rod. A second fixing block is arranged on one side of the connecting shaft; by means of the design of the anti-disengaging rod, the hook body, the driving piece and the rotating assembly, an object can be hung in the hook body by pressing the anti-disengaging rod through the object, the anti-disengaging rod can limit unhooking of the object, when the object needs to be unhooked, the pulling rope is pulled remotely, the pulling rope is extruded, the rotating rod rotates in the direction away from the hook body, and therefore the object can be hooked. Therefore, the rotating rod drives the anti-falling rod to rotate in the direction close to the inner wall of the hook body, an object can be unhooked and taken out, and the situation that the object falls accidentally and hurts workers is avoided.

Description

Technical Field

[0001] The utility model relates to the technical field of overhead crane hooks, in particular to an overhead crane hook anti-dropping device which is convenient for remote hook removal. Background Art

[0002] When hot-rolled steel plates are produced, overhead crane hooks are required to lift the steel plates. The existing hook anti-slip devices are convenient for hooking, but when unhooking, personnel need to approach the hook and press the anti-slip device to unhook. Therefore, during the rough processing of steel plate production, when the flying shear pit is in a position where the billet head slides, the hook remover is in danger of being hit and injured, so he cannot approach the hook. The finishing rolling personnel need to remove the anti-slip device and remotely command the overhead crane hook to complete the dumping of the hopper, which makes the anti-slip device inconvenient to use. Utility Model Content

[0003] The utility model aims to provide a crane hook anti-dropping device which is convenient for remote hook removal, so as to solve the problems raised in the above-mentioned background technology.

[0004] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: an anti-dropping device for a overhead crane hook which is convenient for remote unhooking, comprising an anti-dropping rod, a hook body for hanging objects is arranged on the outside of the anti-dropping rod, a connecting shaft for installing the hook body is arranged on the top of the hook body, a rotating assembly for driving the anti-dropping rod to rotate is arranged at one end of the anti-dropping rod, a first fixed block for installing the anti-dropping rod is arranged on the inner wall of the hook body, the rotating assembly comprises a rotating rod, a driving member for driving the rotating rod is arranged inside the rotating rod, and a second fixed block for installing the driving member is arranged on one side of the connecting shaft.

[0005] Preferably, the bottom end of the connecting shaft is fixedly connected to the top end of the hook body, one end of the first fixed block is fixedly connected to the inner wall of the hook body, one end of the anti-drop rod is fixedly connected to a rotating cylinder, and a mounting piece for connecting to the first fixed block is provided inside the rotating cylinder.

[0006] Preferably, the mounting member includes mounting bolts, a first circular hole is formed on the front of the first fixing block, a circular through groove is formed on the front of the rotating cylinder, and the mounting bolts are inserted and connected with the circular through groove and the first circular hole.

[0007] Preferably, one end of the rotating rod is fixedly connected to one side of the rotating cylinder, and the other end of the rotating rod is provided with a counterweight for increasing the weight of the rotating rod.

[0008] Preferably, the counterweight member comprises a first counterweight plate and a second counterweight plate which are symmetrically arranged, and the first counterweight plate and the second counterweight plate are respectively sleeved on the top end and the bottom end of the outer wall of the rotating rod.

[0009] Preferably, threaded holes are respectively formed at the top ends of the first counterweight plate and the second counterweight plate, and connecting bolts for connecting the first counterweight plate and the second counterweight plate are inserted and connected through the internal threads of the threaded holes.

[0010] Preferably, one end of the second fixing block is fixedly connected to one side of the connecting shaft, a second circular hole is opened on the front side of the second fixing block, and the driving member includes a pulling rope, one end of which is fixedly connected to a connecting ring for inserting into the second circular hole.

[0011] Technical effects and advantages of the utility model:

[0012] The utility model utilizes the design of an anti-slip rod, a hook body, a driving member and a rotating component. When the hook body needs to be hooked, the object can be hung inside the hook body by pressing the anti-slip rod against the object. The anti-slip rod can limit the object from being unhooked. When the object needs to be unhooked, the pulling rope is pulled over a long distance so that the pulling rope is squeezed to rotate the rotating rod away from the hook body, so that the rotating rod drives the anti-slip rod to rotate toward the inner wall of the hook body, and the object can be unhooked and taken out, thereby preventing the object from accidentally falling and causing injuries to the staff. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] Figure 1 It is a schematic diagram of the overall three-dimensional structure of the utility model.

[0014] Figure 2 It is a schematic diagram of the three-dimensional structure of the hook body of the utility model.

[0015] Figure 3 It is a schematic diagram of the three-dimensional structure of the anti-drop rod and the rotating assembly of the utility model.

[0016] Figure 4 It is a schematic diagram of the three-dimensional structure of the counterweight of the utility model.

[0017] In the figure: 1, anti-drop rod; 2, hook body; 3, connecting shaft; 4, rotating cylinder; 5, rotating rod; 6, counterweight; 61, first counterweight plate; 62, second counterweight plate; 63, connecting bolt; 7, first fixing block; 8, second fixing block; 9, connecting ring; 10, pulling rope; 11, mounting bolt. 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] The present utility model provides a hook anti - detachment device for an overhead crane that is convenient for remote unhooking, as shown in Figure 1-4 The device includes an anti - detachment rod 1. An outer part of the anti - detachment rod 1 is provided with a hook body 2 for hanging an object. A top end of the hook body 2 is provided with a connecting shaft 3 for mounting the hook body 2. One end of the anti - detachment rod 1 is provided with a rotating assembly for driving the anti - detachment rod 1 to rotate. An inner wall of the hook body 2 is provided with a first fixing block 7 for mounting the anti - detachment rod 1. The rotating assembly includes a rotating rod 5. An inside of the rotating rod 5 is provided with a driving part for driving the rotating rod 5. One side of the connecting shaft 3 is provided with a second fixing block 8 for mounting the driving part.

[0020] Specifically, a bottom end of the connecting shaft 3 is fixedly connected to a top end of the hook body 2. One end of the first fixing block 7 is fixedly connected to an inner wall of the hook body 2. One end of the anti - detachment rod 1 is fixedly connected to a rotating cylinder 4. An inside of the rotating cylinder 4 is provided with a mounting part for connecting with the first fixing block 7. The mounting part includes a mounting bolt 11. A first round hole is formed in a front surface of the first fixing block 7, and a circular through - slot is formed in a front surface of the rotating cylinder 4. The mounting bolt 11 is inserted through both the circular through - slot and the first round hole.

[0021] Furthermore, the hook body 2 and the connecting shaft 3 form an existing overhead - crane hook. The first fixing block 7 is fixedly connected to the inner wall of the hook body 2 by welding. Two rotating cylinders 4 are provided. The anti - detachment rod 1 is in a C - shape. Two ends of the anti - detachment rod 1 are fixedly welded to outer walls of the two rotating cylinders 4 respectively. The two rotating cylinders 4 are respectively arranged on the front and back of the first fixing block 7. The first round hole and the circular through - slot have smooth inner walls. By inserting the mounting bolt 11 into the first round hole and the circular through - slot, the rotating cylinder 4 can rotate. The anti - detachment rod 1 is arranged inside the hook body 2, and an end of the hook body 2 will abut against the anti - detachment rod 1, thereby restricting the anti - detachment rod 1 from rotating out of the inside of the hook body 2.

[0022] Specifically, one end of the rotating rod 5 is fixedly connected to one side of the rotating cylinder 4. The other end of the rotating rod 5 is provided with a counterweight 6 for increasing the weight of the rotating rod 5. The counterweight 6 includes symmetrically arranged first counterweight plate 61 and second counterweight plate 62. The first counterweight plate 61 and the second counterweight plate 62 are respectively sleeved on the top and bottom of the outer wall of the rotating rod 5. Threaded holes are formed in the top ends of the first counterweight plate 61 and the second counterweight plate 62. A connecting bolt 63 for connecting the first counterweight plate 61 and the second counterweight plate 62 is threadedly inserted into the threaded holes. One end of the second fixing block 8 is fixedly connected to one side of the connecting shaft 3. A second round hole is formed in a front surface of the second fixing block 8. The driving part includes a pulling rope 10. One end of the pulling rope 10 is fixedly connected to a connecting ring 9 for inserting into the second round hole.

[0023] Further, the rotating rod 5 is in a C shape. The two ends of the rotating rod 5 are respectively welded and fixed to the sides of the two rotating cylinders 4 away from the anti-disengagement rod 1. The length of the rotating rod 5 is 2-3 times the length of the anti-disengagement rod 1. The counterweight 6 is arranged on the outer wall of the rotating rod 5 close to the pulling rope 10. The thread on the outer wall of the connecting bolt 63 meshes with the thread on the inner wall of the threaded hole. Thus, through the threaded insertion connection of the connecting bolt 63 and the threaded hole, the first counterweight plate 61 and the second counterweight plate 62 can be wrapped around the outer wall of the rotating rod 5. The end of the second fixing block 8 is welded and fixed to the outer wall of the connecting shaft 3. The connecting ring 9 is inserted through the second round hole. The end of the pulling rope 10 is fixedly connected to the connecting ring 9 by tying. Due to the weight of the counterweight 6, the counterweight 6 drives the end of the rotating rod 5 away from the rotating cylinder 4 to move towards the hook body 2. The rotating rod 5 drives the rotating cylinder 4 to rotate, and the rotating cylinder 4 drives the anti-disengagement rod 1 to rotate towards the connecting shaft 3. Restricted by the end of the hook body 2, the anti-disengagement rod 1 cannot continue to rotate, thereby preventing the object hanging inside the hook body 2 from becoming disengaged. When it is necessary to disengage the object, the pulling rope 10 is pulled from a distance to lift the pulling rope 10. The top end of the pulling rope 10 will push the rotating rod 5 to rotate away from the hook body 2. The rotating rod 5 drives the rotating cylinder 4 to rotate, and the rotating cylinder 4 drives the anti-disengagement rod 1 to rotate away from the connecting shaft 3, thereby opening the inlet and outlet of the hook body 2 and allowing the object to be disengaged. By this method, the staff can perform the disengagement operation from a distance, preventing the object from accidentally falling and causing harm to the staff.

[0024] Finally, it should be noted that the above are only the preferred embodiments of the present invention and are not used to limit the present invention. Although the present invention has been described in detail with reference to the foregoing embodiments, for those skilled in the art, they can still modify the technical solutions described in the foregoing embodiments, or perform equivalent replacements for some of the technical features. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principle of the present invention shall be included within the protection scope of the present invention.

Claims

1. An anti-drop device for a crane hook that facilitates remote hook removal, comprising an anti-drop rod (1), a hook body (2) for hanging an object is arranged outside the anti-drop rod (1), and a connecting shaft (3) for installing the hook body (2) is arranged at the top of the hook body (2), characterized in that: A rotating assembly for driving the anti-slip rod (1) to rotate is disposed at one end of the anti-slip rod (1); a first fixing block (7) for mounting the anti-slip rod (1) is disposed on the inner wall of the hook body (2); the rotating assembly comprises a rotating rod (5); a driving member for driving the rotating rod (5) is disposed inside the rotating rod (5); and a second fixing block (8) for mounting the driving member is disposed on one side of the connecting shaft (3).

2. The anti-dropping device for a crane hook that facilitates remote hook removal according to claim 1, characterized in that: The bottom end of the connecting shaft (3) is fixedly connected to the top end of the hook body (2), one end of the first fixing block (7) is fixedly connected to the inner wall of the hook body (2), one end of the anti-drop rod (1) is fixedly connected to the rotating cylinder (4), and a mounting piece for connecting to the first fixing block (7) is provided inside the rotating cylinder (4).

3. The anti-dropping device for a crane hook that facilitates remote hook removal according to claim 2, characterized in that: The mounting member comprises a mounting bolt (11), a first circular hole is provided on the front of the first fixing block (7), a circular through groove is provided on the front of the rotating cylinder (4), and the mounting bolt (11) is inserted and connected with the circular through groove and the first circular hole.

4. The anti-dropping device for a crane hook that facilitates remote hook removal according to claim 2, characterized in that: One end of the rotating rod (5) is fixedly connected to one side of the rotating cylinder (4), and the other end of the rotating rod (5) is provided with a counterweight (6) for increasing the weight of the rotating rod (5).

5. The anti-dropping device for a crane hook that facilitates remote hook removal according to claim 4, characterized in that: The counterweight member (6) comprises a first counterweight plate (61) and a second counterweight plate (62) which are symmetrically arranged. The first counterweight plate (61) and the second counterweight plate (62) are respectively sleeved on the top end and the bottom end of the outer wall of the rotating rod (5).

6. The anti-dropping device for a crane hook that facilitates remote hook removal according to claim 5, characterized in that: The top ends of the first counterweight plate (61) and the second counterweight plate (62) are respectively provided with threaded holes, and the internal threads of the threaded holes are penetrated and connected with connecting bolts (63) for connecting the first counterweight plate (61) and the second counterweight plate (62).

7. The anti-dropping device for a crane hook that facilitates remote hook removal according to claim 1, characterized in that: One end of the second fixing block (8) is fixedly connected to one side of the connecting shaft (3), and a second circular hole is provided on the front side of the second fixing block (8). The driving member comprises a pulling rope (10), and one end of the pulling rope (10) is fixedly connected to a connecting ring (9) for inserting into the second circular hole.

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