Manual unhooking device for assisting pile feeding

By designing a hook system for the manual release device and coordinating it with an anti-detachment safety clip, the problems of small hook rebound and sheet pile weight exceeding the load during pile feeding operations were solved, thus achieving convenience and safety in pile feeding operations.

CN223991341UActive Publication Date: 2026-03-13SHANDONG CHINA RAILWAY BRIDGE ENG CO LTD +1
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2025-03-11
Publication Date
2026-03-13

AI Technical Summary

Technical Problem

In existing pile feeding operations, the rebound of the small hook safety mechanism can lead to unhooking failure or safety hazards. Furthermore, when using a standard unhooking device, the weight of the sheet pile material exceeds the load, making effective unhooking impossible.

Method used

Design a manual unhooking device that includes a hook system, an anti-derailment system, and an anti-entanglement system. After the hook is moved to a designated position by a lifting device, the hook can be smoothly opened by the cooperation of the anti-derailment safety clip and the traction steel cable.

Benefits of technology

This improves the convenience and safety of the pile feeding operation, avoids safety hazards caused by accidental collisions, and ensures the smooth lifting and successful unhooking of the steel sheet piles.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model discloses a manual unhooking device for assisting in pile feeding, and relates to the technical field of pile feeding hooks. The hook system comprises a connecting piece, the connecting piece is installed at the bottom of external hoisting equipment, the anti-disengaging system is installed below the connecting piece, the anti-disengaging system comprises an anti-disengaging safety clamp, the anti-disengaging safety clamp is installed below the connecting piece, and the anti-winding system is installed on the two sides of the anti-disengaging safety clamp. The anti-winding system comprises a connecting disc, the connecting disc is installed below the connecting piece, a disc steel rope is fixedly arranged on the circumferential side face of the connecting disc, a connecting rod is fixedly arranged at the bottom of the connecting piece, a hook is fixedly arranged at the bottom of the connecting rod, limiting plates are fixedly arranged on the two sides of the hook, and a limiting rod is fixedly arranged between the two limiting plates. By means of the specific structural design of the hook system, the anti-disengaging system and the anti-winding system, safe and efficient construction during auxiliary pile feeding is improved.
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Description

Technical Field

[0001] This utility model belongs to the field of pile feeding hook technology, and in particular relates to a manual unhooking device for assisting pile feeding. Background Technology

[0002] The steel sheet pile cofferdam of the Dengkou Yellow River Bridge project on G110 uses dual lifting equipment for installation, with one machine working in conjunction with the vibratory hammer and the other assisting in the pile feeding operation.

[0003] In common pile feeding operations, the auxiliary lifting equipment unhooking is achieved by securing the small hook with wire or tape. After the operation is completed, the lifting equipment swings its arm to achieve the purpose of pile feeding and automatic unhooking. However, this method is prone to the small hook safety springing back, causing unhooking failure or the pile feeding operation to be incomplete. It also cannot guarantee safety against accidental collisions during pile feeding operations. If a standard unhooking device is used, it cannot be adopted because the weight of the steel sheet pile material exceeds the standard load. Therefore, a manual unhooking device for auxiliary pile feeding plays an important role. To this end, we provide a manual unhooking device for auxiliary pile feeding to solve the above-mentioned problems. Utility Model Content

[0004] The purpose of this utility model is to provide a manual unhooking device for assisting pile feeding. The connecting piece is moved downward by the lifting equipment, which in turn moves the hook downward. When the hook moves to the designated location, the end of the sheet pile is hoisted at a single point by a double-strand steel wire rope. Then, the sheet pile is hoisted smoothly. After the hoisted object reaches the designated position, the anti-detachment safety lock is opened, and the lifting equipment operator lowers the connecting piece, which causes the hook to fall. Then, the swing arm causes the hoisting steel wire rope to detach, which solves the safety hazards caused by accidental collisions in the existing pile feeding operation.

[0005] To solve the above-mentioned technical problems, this utility model is achieved through the following technical solution: This utility model is a manual unhooking device for assisting pile feeding, including a hook system, an anti-derailment system, and an anti-winding system. The hook system includes a connector, which is installed at the bottom of an external lifting device. The anti-derailment system is installed below the connector and includes an anti-derailment safety clip, which is installed below the connector. The anti-winding system is installed on both sides of the anti-derailment safety clip. The anti-winding system includes a connecting disc, which is installed below the connector. A circular steel rope is fixedly arranged on the periphery of the connecting disc.

[0006] The present invention is further configured such that a connecting rod is fixedly provided at the bottom of the connector, a hook is fixedly provided at the bottom of the connecting rod, a limiting plate is fixedly provided on both sides of the hook, and a limiting rod is fixedly provided between the two limiting plates.

[0007] The present invention is further configured such that the limiting rod and the anti-detachment safety clip are rotatably coupled, two clamps are installed on the periphery of the connecting rod, and a positioning plate is fixedly installed on the periphery of the clamp. The two positioning plates are connected by bolts, and fixed pulleys are fixedly installed on both sides of the bolts. A connecting ring is installed on the inner side of the fixed pulley.

[0008] The present invention is further configured such that the two connecting rings are fixedly connected to the two ends of the corresponding circular steel rope, and the anti-detachment safety card is fixedly provided with a first positioning ring on both sides, and a second positioning ring is installed inside the first positioning ring.

[0009] The present invention is further configured such that the two second positioning rings are connected by an open rope, the open rope is located on the side of the hook, the open rope is located inside the disc steel rope, the connecting disc is fixedly installed at the middle of the open rope, a traction steel cable is fixedly installed at the lower end of the connecting disc, and a magnet is installed at the bottom end of the traction steel cable.

[0010] The present invention has the following beneficial effects: 1. The present invention allows the worker to hold a magnet at the bottom of the traction cable and fix the position of the traction cable automatically. After the lifting is completed, the object being lifted will rotate with the hook, thus achieving the desired anti-entanglement.

[0011] 2. This utility model uses the traction steel cable to pull the connecting plate to move, the open rope to move the second positioning ring, and the first positioning ring to move the anti-detachment safety card to rotate, so that the anti-detachment safety card rotates to the inside of the hook, so that the hook is opened. This process can pull the traction steel cable to open the hook, which improves the convenience of manual hook release. Attached Figure Description

[0012] To more clearly illustrate the technical solutions of the embodiments of this utility model, the accompanying drawings used in the description of the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0013] Figure 1 This is a schematic diagram of a manual unhooking device used to assist in pile feeding.

[0014] Figure 2 for Figure 1 Another structural diagram from a different angle.

[0015] Figure 3 This is a schematic diagram of the hook system in this utility model.

[0016] Figure 4 for Figure 3 Another structural diagram from a different angle.

[0017] Figure 5 for Figure 4 The left view of the structure.

[0018] Figure 6 This is a schematic diagram of the anti-entanglement system in this utility model.

[0019] Figure 7 for Figure 6 A schematic diagram of the structure at point A in the middle.

[0020] The attached diagram lists the components represented by each number as follows:

[0021] 1-Hook system, 101-Connector, 102-Connecting rod, 103-Hook, 104-Limiting plate, 105-Clamp, 106-Positioning plate, 107-Bolt, 108-Fixed pulley, 109-Limiting rod, 2-Anti-detachment system, 201-Anti-detachment safety clip, 202-First positioning ring, 3-Anti-winding system, 301-Connecting disc, 302-Circular steel rope, 303-Second positioning ring, 304-Open rope, 305-Traction steel cable, 306-Connecting ring. Detailed Implementation

[0022] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those skilled in the art without creative effort are within the protection scope of the present utility model.

[0023] For a specific implementation example, please refer to Implementation Example 1. Figure 1-7 This utility model is a manual unhooking device for assisting pile feeding, including a hook system 1, an anti-derailment system 2, and an anti-winding system 3. The hook system 1 includes a connector 101, which is installed at the bottom of an external lifting device. The anti-derailment system 2 is installed below the connector 101 and includes an anti-derailment safety clip 201, which is installed below the connector 101. The anti-winding system 3 is installed on both sides of the anti-derailment safety clip 201 and includes a connecting plate 301, which is installed below the connector 101. A circular steel rope 302 is fixedly provided on the periphery of the connecting plate 301.

[0024] Specifically, a connecting rod 102 is fixedly installed at the bottom of the connector 101, a hook 103 is fixedly installed at the bottom of the connecting rod 102, a limit plate 104 is fixedly installed on both sides of the hook 103, and a limit rod 109 is fixedly installed between the two limit plates 104.

[0025] Furthermore, the limiting rod 109 and the anti-detachment safety clip 201 are rotatably engaged. Two clamps 105 are installed on the periphery of the connecting rod 102. Positioning plates 106 are fixedly installed on the periphery of the clamps 105. The two positioning plates 106 are connected by bolts 107. Fixed pulleys 108 are fixedly installed on both sides of the bolts 107. Connecting rings 306 are installed on the inner side of the fixed pulleys 108.

[0026] The operation process of this embodiment is as follows: A double-strand hoisting wire rope is installed on the hook 103. The connecting piece 101 is moved downward by the lifting equipment, which drives the hook 103 to move downward. When the hook 103 moves to the designated location, the end of the steel sheet pile is hoisted at a single point by the double-strand wire rope. Then, the steel sheet pile is hoisted smoothly. After the hoisted object is in the designated position, the anti-detachment safety card 201 is opened. The operator of the lifting equipment lowers the connecting piece 101, which drives the hook 103 to fall. Then, the arm swings to make the hoisting wire rope detach.

[0027] In the second specific embodiment, based on the first specific embodiment, the two connecting rings 306 are fixedly connected to the two ends of the corresponding disc steel rope 302, and the anti-detachment safety card 201 is fixedly provided with a first positioning ring 202 on both sides, and a second positioning ring 303 is installed on the inner side of the first positioning ring 202.

[0028] Specifically, the two second positioning rings 303 are connected by an open rope 304. The open rope 304 is located on the side of the hook 103 and inside the disc steel rope 302. The connecting plate 301 is fixedly installed in the middle of the open rope 304. A traction steel cable 305 is fixedly installed at the lower end of the connecting plate 301, and a magnet is installed at the bottom of the traction steel cable 305.

[0029] The operation process of this embodiment is as follows: After the suspended object is moved to the designated position, the worker holds a magnet to attract the magnet at the bottom of the traction cable 305. The traction cable 305 is pulled and the connecting plate 301 moves. The open rope 304 moves and drives the second positioning ring 303 to move. The first positioning ring 202 moves and drives the anti-detachment safety card 201 to rotate, so that the anti-detachment safety card 201 rotates to the inside of the hook 103, so that the hook 103 is opened. The magnet can automatically fix the position of the traction cable 305. After the lifting, the suspended object rotates together with the hook 103 to achieve the anti-entanglement intention.

[0030] In the description of this specification, references to terms such as "an embodiment," "example," "specific example," etc., indicate that a specific feature, structure, material, or characteristic described in connection with that embodiment or example is included in at least one embodiment or example of the present invention. In this specification, the illustrative expressions of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples.

[0031] The preferred embodiments of this utility model disclosed above are merely illustrative of the present utility model. These preferred embodiments do not exhaustively describe all details, nor do they limit the utility model to the specific implementations described. Clearly, many modifications and variations can be made based on the content of this specification. This specification selects and specifically describes these embodiments to better explain the principles and practical applications of this utility model, thereby enabling those skilled in the art to better understand and utilize it. This utility model is limited only by the claims and their full scope and equivalents.

Claims

1. A manual unhooking device for assisting in pile feeding, characterized in that, Include: Hook system (1), the hook system (1) includes connecting piece (101), the connecting piece (101) is installed at the bottom of external hoisting equipment; Anti-off groove system (2), the anti-off groove system (2) is installed below the connecting piece (101), and the anti-off groove system (2) includes anti-off safety card (201), and the anti-off safety card (201) is installed below the connecting piece (101); And anti-winding system (3), the anti-winding system (3) is installed on both sides of the anti-off safety card (201), and the anti-winding system (3) includes connecting disc (301), the connecting disc (301) is installed below the connecting piece (101), and the connecting disc (301) is fixedly provided with disc steel rope (302) on the circumferential side.

2. A manual unhooking device for assisting pile feeding according to claim 1, characterized in that, The connecting piece (101) bottom is fixedly provided with connecting rod (102), the connecting rod (102) bottom is fixedly provided with hook (103), the hook (103) both sides are fixedly provided with limit plate (104), and the limit plate (104) is fixedly provided with limit rod (109) between two.

3. A hand unhooking device for assisting pile feeding according to claim 2, characterized in that, The limit rod (109) is rotatably connected between the anti-off safety card (201), the connecting rod (102) circumferential surface is provided with two clamps (105), and the clamp (105) circumferential surface is fixedly provided with positioning plate (106).

4. A hand unhooking device for assisting pile feeding according to claim 3, characterized in that, Two positioning plates (106) are connected by bolt (107) between two, and the bolt (107) both sides are fixedly provided with fixed pulley (108), and the fixed pulley (108) is installed with connecting ring (306) in the inner side.

5. A manual unhooking device for assisting pile feeding according to claim 4, characterized in that, Two connecting rings (306) are fixedly connected with corresponding disc steel rope (302) two ends, and the anti-off safety card (201) both sides are fixedly provided with first positioning ring (202), and the first positioning ring (202) is installed with second positioning ring (303) in the inner side.

6. A hand unhooking device for assisting pile feeding according to claim 5, characterized in that Two second positioning rings (303) are connected by open rope (304) between two, and the open rope (304) is on the circumferential surface of hook (103), and the open rope (304) is on the inner side of disc steel rope (302).

7. A hand unhooking device for assisting pile feeding according to claim 6, characterized in that The connecting disc (301) is fixedly arranged in the middle end of open rope (304), and the connecting disc (301) lower end is fixedly provided with traction steel cable (305), and the traction steel cable (305) bottom end is installed with magnetite.