A lifting tool locking head nut auxiliary dismounting tool

Abstract

The utility model relates to a kind of hoist lock head nut auxiliary dismounting tools, including the base for adjusting lock head nut, limit tooth, adjusting bolt, the base is disc type, the center of the upper end surface of base is coaxially fixed with the bottom end center of the adjusting bolt, the limit tooth is provided with six groups, six groups limit tooth is fixed on the lower end surface of base at equal angle, the upper end surface of lock head nut is opened with recess in the position corresponding limit tooth;The design of base, limit tooth, adjusting bolt, only need to install the device on lock head nut, then the external sleeve is sleeved on its adjusting bolt, and lock head nut can be loosened by rotating the handle on sleeve, the operation process is very time-saving and labor-saving, reduces security risk.

Description

Technical Field

[0001] This utility model relates to the field of lifting tool technology, and more specifically, to a tool for assisting in the disassembly and assembly of lifting tool lock nuts. Background Technology

[0002] The locking head of the tire crane's lifting device is secured by a nut on the locking head. When assembling or adjusting the locking head's position, it's necessary to tighten or loosen the nut. This nut is 85mm in diameter, and due to prolonged fixing operations, assembling and disassembling it is extremely difficult. Furthermore, its confined space makes it difficult to use ordinary tools. Traditional methods rely solely on manual labor with a large adjustable wrench, taking approximately 20 minutes to assemble or disassemble a single nut—time-consuming, labor-intensive, and posing safety hazards. To reduce labor intensity and improve work efficiency, this utility model proposes a new solution to these problems. Utility Model Content

[0003] In view of the problems existing in the prior art, the purpose of this utility model is to provide an auxiliary tool for disassembling and assembling lifting nut lock heads, so as to solve the technical problems mentioned in the background art.

[0004] To solve the above problems, the present invention adopts the following technical solution.

[0005] A tool for assisting in the assembly and disassembly of a lifting nut includes a base for adjusting the nut, limiting teeth, and an adjusting bolt. The base is disc-shaped, and the center of the upper end face of the base is coaxially fixed with the center of the bottom end of the adjusting bolt. Six sets of limiting teeth are provided, and the six sets of limiting teeth are fixed at equal angles on the lower end face of the base. The upper end face of the nut has a groove corresponding to the position of the limiting teeth.

[0006] Preferably, an auxiliary sleeve is fitted onto the outer side of the base. The auxiliary sleeve has a regular hexagonal cross-section, and a limiting groove is formed on the inner wall of the auxiliary sleeve corresponding to the position of the limiting tooth. The end of the limiting groove extends to the end of the auxiliary sleeve.

[0007] In any of the above embodiments, it is preferred that the top of the adjusting bolt is fitted with an extension tube, and the outer cross-section of the top end of the extension tube is a regular hexagon.

[0008] In any of the above embodiments, it is preferred that the limiting tooth is wider at the top and narrower at the bottom.

[0009] In any of the above solutions, it is preferred that the limiting teeth have equal width at the top and bottom, a length of 20mm, and a thickness of 6mm.

[0010] Compared with existing technologies, the advantages of this utility model are: The design of the base, limiting teeth, and adjusting bolt in this utility model allows the device to be installed on the lock nut, and then the outer sleeve is fitted onto the adjusting bolt. The lock nut can be loosened by turning the handle on the sleeve. The operation process is very time-saving and labor-saving, and reduces safety hazards. Attached Figure Description

[0011] Figure 1 This is a schematic diagram of the overall structure of an auxiliary tool for disassembling and assembling a lifting device lock nut according to the present invention; Figure 2 A schematic diagram of the combined structure of the base, limiting teeth, and adjusting bolts; Figure 3 This is a schematic diagram illustrating the use of this utility model; Figure 4 This is a schematic diagram of the lock nut structure of the tire crane lifting device before modification.

[0012] Explanation of the labels in the diagram: 1. Locking nut; 2. Base; 3. Limiting tooth; 4. Adjusting bolt; 5. Groove; 6. Auxiliary sleeve; 7. Limiting groove; 8. Extension tube. Detailed Implementation

[0013] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present utility model. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. All other embodiments obtained by those skilled in the art based on the embodiments of the present utility model without creative effort are within the protection scope of the present utility model.

[0014] Example: Please see Figures 1 to 4 A tool for disassembling and assembling a lifting nut includes a base 2 for adjusting the nut 1, a limiting tooth 3, and an adjusting bolt 4. The base 2 is disc-shaped, and the center of the upper end face of the base 2 is coaxially fixed with the center of the bottom end of the adjusting bolt 4. The limiting tooth 3 is provided in six sets, and the six sets of limiting teeth 3 are fixed at equal angles on the lower end face of the base 2. The upper end face of the nut 1 has a groove 5 corresponding to the position of the limiting tooth 3. Insert the limiting tooth 3 into the groove 5 on the lock nut 1, then put the outer sleeve onto its adjusting bolt 4, and turn the handle on the sleeve to loosen the lock nut 1. The operation is very time-saving and labor-saving, and reduces safety hazards.

[0015] In this embodiment, an auxiliary sleeve 6 is sleeved on the outer side of the base 2. The cross-section of the auxiliary sleeve 6 is a regular hexagon, and a limiting groove 7 is formed on the inner wall of the auxiliary sleeve 6 corresponding to the position of the limiting tooth 3. The end of the limiting groove 7 extends to the end of the auxiliary sleeve 6. The auxiliary sleeve 6 can cooperate with the limiting tooth 3 to lock the lock nut 1, preventing the limiting tooth 3 from sliding with the lock nut 1 during operation, and further improving the safety of operation.

[0016] In this embodiment, an extension tube 8 is sleeved on the top of the adjusting bolt 4, and the outer cross section of the top of the extension tube 8 is a regular hexagon. When the space near the lock nut 1 is limited, the extension tube 8 can be used to move the operating area away from the space near the lock nut 1, making the operating position more reasonable.

[0017] In this embodiment, the limiting tooth 3 is wider at the top and narrower at the bottom; with the above design, it is more convenient when the limiting tooth 3 is inserted into the groove 5.

[0018] In this embodiment, the limiting tooth 3 has the same width at the top and bottom, and the length of the limiting tooth 3 is 20mm and the thickness is 6mm; through the above design, the limiting tooth 3 is guaranteed to have sufficient strength.

[0019] The working process of this utility model is as follows: The operator can insert the limiting tooth 3 into the groove 5 on the lock nut 1, and then put the outer sleeve on its adjusting bolt 4. Turning the handle on the sleeve will loosen the lock nut 1. When it is necessary to install the lock nut 1, repeat the above steps and then turn the sleeve in the opposite direction. The operation process is very time-saving and labor-saving, and reduces safety hazards.

[0020] The above description is merely a preferred embodiment of this utility model; however, the protection scope of this utility model is not limited thereto. Any equivalent substitutions or modifications made by those skilled in the art within the technical scope disclosed in this utility model, based on the technical solution and its improved concept, should be included within the protection scope of this utility model.

Claims

1. A tool for assisting in the disassembly and assembly of a lifting sling lock nut, characterized in that: The device includes a base (2), a limiting tooth (3), and an adjusting bolt (4) for adjusting the lock nut (1). The base (2) is disc-shaped, and the center of the upper end face of the base (2) is coaxially fixed with the center of the bottom end of the adjusting bolt (4). The limiting tooth (3) is provided in six sets, and the six sets of limiting teeth (3) are fixed at equal angles on the lower end face of the base (2). The upper end face of the lock nut (1) is provided with a groove (5) corresponding to the position of the limiting tooth (3).

2. The auxiliary tool for disassembling and assembling a lifting device lock nut according to claim 1, characterized in that: An auxiliary sleeve (6) is fitted on the outer side of the base (2). The cross-section of the auxiliary sleeve (6) is a regular hexagon, and a limiting groove (7) is opened on the inner wall of the auxiliary sleeve (6) corresponding to the position of the limiting tooth (3). The end of the limiting groove (7) extends to the end of the auxiliary sleeve (6).

3. The auxiliary tool for disassembling and assembling a lifting device lock nut according to claim 1, characterized in that: The top of the adjusting bolt (4) is fitted with an extension tube (8), and the outer cross section of the top end of the extension tube (8) is a regular hexagon.

4. The auxiliary tool for disassembling and assembling a lifting device lock nut according to claim 1, characterized in that: The limiting tooth (3) is wider at the top and narrower at the bottom.

5. The auxiliary tool for disassembling and assembling a lifting device lock nut according to claim 1, characterized in that: The limiting tooth (3) has the same width at the top and bottom, and the length of the limiting tooth (3) is 20mm and the thickness is 6mm.

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