Automatic unhooking device for hoisting

Abstract

The utility model relates to the technical field of hoisting equipment, in particular to an automatic unhooking device for hoisting, which improves the convenience of automatic unhooking, reduces the complexity of manual unhooking operation of personnel, and improves the operation safety and convenience. Comprising a first side fixing plate and a second side fixing plate, and the first side fixing plate and the second side fixing plate are oppositely arranged; the fixing device is arranged between the first side fixing plate and the second side fixing plate and used for connecting the first side fixing plate and the second side fixing plate, and the two ends of the positioning mandrel are installed on the inner side walls of the first side fixing plate and the second side fixing plate respectively. The upper portion of the hook rotationally sleeves the outer side wall of the positioning mandrel, the pull ring is mounted on the upper portion of the outer side wall of the hook, and the tension device is mounted on the first side fixing plate and used for providing rotation power for the hook through the pull ring.

Description

Technical Field

[0001] The utility model relates to the technical field of hoisting equipment, in particular to an automatic hoisting unhooking device. Background Art

[0002] During the lifting and loading and unloading process, workers need to use lifting equipment to hang product materials and then transport them to the designated location before dismantling the lifting equipment. During the work process, one person can complete the operation independently, or one person can be responsible for operating the equipment and one person can be responsible for hanging and dismantling. When multiple people operate, there are great safety hazards. When a single person operates, the worker needs to walk back and forth or climb up and down to dismantle the lifting equipment, which increases the complexity. In order to solve this problem, the lifting automatic unhooking device has gradually become a research hotspot.

[0003] As in the patent with prior art authorization announcement number CN204689374U, the utility model relates to a new type of hook group, which includes a pulley, the lower part of the pulley is connected to a connecting seat through a connecting shaft, the lower end of the connecting seat is connected to a crossbeam, the crossbeam is an "I" type structure, and an anti-collision block is arranged at the end of the crossbeam, the anti-collision block is a rubber anti-collision block, a hook fixing seat is connected to the lower side surface of the middle part of the crossbeam, the hook fixing seat is connected to a lifting hook through a pin shaft, and the left and right parts of the crossbeam are provided with left-right symmetrical lifting devices, the lifting device is composed of a lifting seat and a lifting hook connected to the lifting seat through a pin shaft, and the upper part of the lifting seat is respectively connected to front and rear symmetrical driven wheels and a driving wheel matching the driven wheels.

[0004] However, during the use of the equipment, it was found that the lifting hook of the equipment was not easy to achieve automatic unhooking, which increased the complexity of the manual unhooking operation and reduced the safety of the operation. Utility Model Content

[0005] In order to solve the above technical problems, the utility model provides a lifting automatic unhooking device which improves the convenience of automatic unhooking, reduces the complexity of manual unhooking operation by personnel, and improves operational safety and convenience.

[0006] The utility model discloses an automatic unhooking device for hoisting, comprising a first side fixing plate and a second side fixing plate, wherein the first side fixing plate and the second side fixing plate are arranged opposite to each other; further comprising a fixing device, a tensioning device, a positioning core shaft, a hook and a pull ring, wherein a fixing device is arranged between the first side fixing plate and the second side fixing plate, wherein the fixing device is used to connect the first side fixing plate and the second side fixing plate, wherein the two ends of the positioning core shaft are respectively mounted on the inner side walls of the first side fixing plate and the second side fixing plate, wherein the upper part of the hook is rotatably sleeved on the outer side wall of the positioning core shaft, wherein the pull ring is mounted on the upper part of the outer side wall of the hook, wherein the tensioning device is mounted on the first side fixing plate, wherein the tensioning device is used to provide rotational power to the hook through the pull ring; ... The equipment drives the first side fixing plate and the second side fixing plate to move, so that the first side fixing plate and the second side fixing plate drive the hook to move above the cargo to be hoisted. When the hook is not hoisting the cargo, the pulling force is provided to the pulling ring through the pulling device, so that the pulling ring drives the hook to flip backward. After the hook hoists the cargo, the weight of the cargo pulls the hook to swing downward to a vertical state, so that the hook hoists the cargo. When the cargo is put down, the cargo stops pulling the hook downward. At this time, the pulling force provided to the pulling ring by the pulling device causes the hook to flip backward again, thereby decoupling and separating the hook from the cargo, thereby improving the convenience of automatic unhooking of the device, reducing the complexity of manual unhooking operation by personnel, and improving operational safety and convenience.

[0007] Preferably, the pulling device includes a support pin and a tension spring, the support pin is installed on the first side fixing plate and the upper part of the second side fixing plate, the top end of the tension spring is cooperatedly installed on the outer side wall of the support pin, and the bottom end of the tension spring is cooperatedly connected with the pull ring; the tension spring provides an upward pulling force to the pull ring, so that the pull ring drives the hook to flip backward, thereby improving the convenience of automatic unhooking of the hook and improving the reliability of the use of the device.

[0008] Preferably, the fixing device includes multiple groups of internal threaded sleeves and multiple groups of bolts, the multiple groups of internal threaded sleeves are all installed on the inner wall of the first side fixing plate, and the multiple groups of bolts pass through the interior of the second side fixing plate and are threaded on the multiple groups of internal threaded sleeves; by providing multiple groups of internal threaded sleeves and multiple groups of bolts, the connection firmness between the first side fixing plate and the second side fixing plate is improved, and the convenience of the device assembly operation is improved.

[0009] Preferably, it also includes a through hole and a support ring, the through hole is arranged on the upper part of the first side fixing plate and the second side fixing plate, the support ring is installed between the first side fixing plate and the second side fixing plate, and the support ring is communicated with the through hole; by setting the through hole and the support ring, the convenience of external traction equipment for lifting and moving the device is improved.

[0010] Preferably, it also includes a hanging piece, the lower part of which passes through the through hole and the inside of the support ring; by providing the hanging piece, the convenience of connecting the device with external traction equipment is improved.

[0011] Compared with the prior art, the beneficial effects of the utility model are as follows: the first side fixing plate and the second side fixing plate are driven to move by an external traction device, so that the first side fixing plate and the second side fixing plate drive the hook to move above the cargo to be hoisted. When the hook is not hoisting the cargo, the pulling force is provided to the pulling ring by the pulling device, so that the pulling ring drives the hook to flip backward. After the hook hoists the cargo, the weight of the cargo pulls the hook to swing downward to a vertical state, so that the hook hoists the cargo. When the cargo is put down, the cargo stops pulling the hook downward. At this time, the pulling force provided to the pulling ring by the pulling device causes the hook to flip backward again, so that the hook and the cargo are unhooked and separated, thereby improving the convenience of automatic unhooking of the device, reducing the complexity of manual unhooking operation by personnel, and improving operational safety and convenience. BRIEF DESCRIPTION OF THE DRAWINGS

[0012] Figure 1 It is a schematic diagram of the axonometric structure of the utility model;

[0013] Figure 2 It is a schematic diagram of the axonometric structure of the connection between the hook and the pull ring;

[0014] Figure 3 It is a side view structural diagram of the connection between the support pin and the tension spring;

[0015] Figure 4 This is a schematic diagram of the axonometric structure of the hook in an unstressed state;

[0016] Figure 5 It is a schematic diagram of the axonometric structure of the hook hoisting stress state.

[0017] Markings in the accompanying drawings: 1. first side fixing plate; 2. second side fixing plate; 3. positioning core shaft; 4. hook; 5. pull ring; 6. support pin; 7. tension spring; 8. internal threaded sleeve; 9. bolt; 10. through hole; 11. support ring; 12. hanger. DETAILED DESCRIPTION

[0018] In order to facilitate the understanding of the utility model, the utility model will be described more comprehensively below with reference to the relevant drawings. The utility model can be implemented in many different forms and is not limited to the embodiments described herein. On the contrary, the purpose of providing these embodiments is to make the disclosure of the utility model more thorough and comprehensive. Example

[0019] like Figures 1 to 5As shown, an automatic unhooking device for hoisting of the utility model comprises a first side fixing plate 1 and a second side fixing plate 2, the first side fixing plate 1 and the second side fixing plate 2 are arranged opposite to each other; further comprising a fixing device, a tensioning device, a positioning mandrel 3, a hook 4 and a pull ring 5, a fixing device is arranged between the first side fixing plate 1 and the second side fixing plate 2, the fixing device is used to connect the first side fixing plate 1 and the second side fixing plate 2, the two ends of the positioning mandrel 3 are respectively mounted on the inner side walls of the first side fixing plate 1 and the second side fixing plate 2, the upper part of the hook 4 is rotatably sleeved on the outer side wall of the positioning mandrel 3, the pull ring 5 is mounted on the upper part of the outer side wall of the hook 4, the tensioning device is mounted on the first side fixing plate 1, and the tensioning device is used to provide rotational power to the hook 4 through the pull ring 5;

[0020] like Figure 2 As shown, the tension device includes a support pin 6 and a tension spring 7, the support pin 6 is installed on the upper part of the first side fixing plate 1 and the second side fixing plate 2, the top end of the tension spring 7 is matched and installed on the outer side wall of the support pin 6, and the bottom end of the tension spring 7 is matched and connected with the pull ring 5;

[0021] In this embodiment, the first side fixing plate 1 and the second side fixing plate 2 are driven to move by an external traction device, so that the first side fixing plate 1 and the second side fixing plate 2 drive the hook 4 to move above the cargo to be hoisted. When the hook 4 is not hoisting the cargo, the pulling force is provided to the pull ring 5 by the pulling device, so that the pull ring 5 drives the hook 4 to flip backward. After the hook 4 hoists the cargo, the weight of the cargo pulls the hook 4 to swing downward to a vertical state, so that the hook 4 hoists the cargo. When the cargo is put down, the cargo stops pulling the hook 4 downward. At this time, the pulling force provided to the pull ring 5 by the pulling force device causes the hook 4 to flip backward again, so that the hook 4 and the cargo are unhooked and separated, thereby improving the convenience of automatic unhooking of the device, reducing the complexity of manual unhooking operation by personnel, and improving operational safety and convenience. Example

[0022] On the basis of Example 1, Figure 2 As shown, the utility model is a lifting automatic unhooking device, the fixing device includes multiple sets of internal threaded sleeves 8 and multiple sets of bolts 9, the multiple sets of internal threaded sleeves 8 are all installed on the inner wall of the first side fixing plate 1, and the multiple sets of bolts 9 pass through the inside of the second side fixing plate 2 and are threadedly mounted on the multiple sets of internal threaded sleeves 8;

[0023] like Figure 2 As shown, it also includes a through hole 10 and a support ring 11, the through hole 10 is arranged on the upper part of the first side fixing plate 1 and the second side fixing plate 2, the support ring 11 is installed between the first side fixing plate 1 and the second side fixing plate 2, and the support ring 11 is communicated with the through hole 10;

[0024] like Figure 4As shown, it also includes a hanging piece 12, the lower part of the hanging piece 12 passes through the through hole 10 and the inside of the support ring 11;

[0025] In this embodiment, the tension spring 7 provides an upward pulling force to the pull ring 5, so that the pull ring 5 drives the hook 4 to flip backward, thereby improving the convenience of automatic unhooking of the hook 4 and improving the reliability of the device. By providing multiple groups of internal threaded sleeves 8 and multiple groups of bolts 9, the connection firmness between the first side fixing plate 1 and the second side fixing plate 2 is improved, and the convenience of the device assembly operation is improved.

[0026] The utility model discloses an automatic unhooking device for lifting, which, when working, drives the first side fixing plate 1 and the second side fixing plate 2 to move through an external traction device, so that the first side fixing plate 1 and the second side fixing plate 2 drive the hook 4 to move above the cargo that needs to be lifted. When the hook 4 is not lifting the cargo, a pulling force is provided to the pull ring 5 through a pulling force device, so that the pull ring 5 drives the hook 4 to flip backward. After the hook 4 lifts the cargo, the weight of the cargo pulls the hook 4 to swing downward to a vertical state, so that the hook 4 lifts the cargo. When the cargo is put down, the cargo stops pulling the hook 4 downward. At this time, the pulling force provided to the pull ring 5 by the pulling force device causes the hook 4 to flip backward again, so that the hook 4 is unhooked and separated from the cargo.

[0027] The above is only a preferred embodiment of the present invention. It should be pointed out that for ordinary technicians in this technical field, several improvements and modifications can be made without departing from the technical principle of the present invention. These improvements and modifications should also be regarded as the protection scope of the present invention.

Claims

1. A lifting automatic unhooking device, comprising a first side fixing plate (1) and a second side fixing plate (2), wherein the first side fixing plate (1) and the second side fixing plate (2) are arranged opposite to each other; characterized in that: The invention also comprises a fixing device, a tension device, a positioning mandrel (3), a hook (4) and a pull ring (5), wherein a fixing device is arranged between the first side fixing plate (1) and the second side fixing plate (2), and the fixing device is used to connect the first side fixing plate (1) and the second side fixing plate (2), and the two ends of the positioning mandrel (3) are respectively mounted on the inner side walls of the first side fixing plate (1) and the second side fixing plate (2), and the upper part of the hook (4) is rotatably sleeved on the outer side wall of the positioning mandrel (3), and the pull ring (5) is mounted on the upper part of the outer side wall of the hook (4), and the tension device is mounted on the first side fixing plate (1), and the tension device is used to provide rotational power to the hook (4) through the pull ring (5).

2. The automatic unhooking device for hoisting as claimed in claim 1, characterized in that: The tension device comprises a support pin (6) and a tension spring (7); the support pin (6) is mounted on the upper part of the first side fixing plate (1) and the second side fixing plate (2); the top end of the tension spring (7) is mounted on the outer side wall of the support pin (6); and the bottom end of the tension spring (7) is connected to the pull ring (5).

3. The automatic unhooking device for hoisting as claimed in claim 1, characterized in that: The fixing device comprises a plurality of sets of internally threaded sleeves (8) and a plurality of sets of bolts (9), wherein the plurality of sets of internally threaded sleeves (8) are all mounted on the inner wall of the first side fixing plate (1), and the plurality of sets of bolts (9) are all passed through the interior of the second side fixing plate (2) and are threadedly mounted on the plurality of sets of internally threaded sleeves (8).

4. The automatic unhooking device for hoisting as claimed in claim 1, characterized in that: It also comprises a through hole (10) and a support ring (11), wherein the through hole (10) is arranged on the upper part of the first side fixing plate (1) and the second side fixing plate (2), and the support ring (11) is installed between the first side fixing plate (1) and the second side fixing plate (2), and the support ring (11) is in communication with the through hole (10).

5. The automatic unhooking device for hoisting as claimed in claim 4, characterized in that: It also includes a hanging piece (12), the lower part of which passes through the through hole (10) and the interior of the supporting ring (11).

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