Extension structure of multifunctional tool

By designing an extended structure for multi-functional tools, integrating multiple tools, and using an adjustable pry bar length, the problems of limited functionality and space occupation in hardware tools are solved, thus improving work efficiency.

CN223643658UActive Publication Date: 2025-12-09HANGZHOU ZHONGJIE TOOLS CO LTD
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Patent Information

Application Number
CN202520113592.1
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2025-01-17
Publication Date
2025-12-09
Estimated Expiration
2035-01-17

AI Technical Summary

Technical Problem

Existing hardware tools have limited functionality, take up a lot of space, and require more time to find different tools, resulting in increased downtime. They also cannot be flexibly adjusted in length to adapt to different working environments.

Method used

Design an extension structure for a multi-functional tool, including a pry bar and a convenient installation method for the tool, using a threaded or quick-change connection. The pry bar can be extended in single or multiple sections, integrating a nail head, wrench, hammer, screwdriver, pliers, or shovel.

Benefits of technology

It features a full range of functions, is easy to use, reduces downtime, improves production efficiency, and adapts to different workspace requirements.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model relates to an extension structure of a multifunctional tool, which belongs to the technical field of hardware tools and comprises at least one pry bar, two adjacent pry bars extend by adopting a direct or indirect structure, and a connector is arranged between the two adjacent pry bars. And the connecting joint adopts a threaded joint or a quick-change structure joint to lengthen and fix the pinch bar. The rear end of the pinch bar is provided with at least one section of extension bar, both ends of the pinch bar are provided with threaded holes, one end of the extension bar is provided with a threaded hole, and the other end of the extension bar is provided with a threaded head. Tools are arranged at one end or two ends of the pry bar and comprise a nail pulling head, a wrench, a hammer, a screwdriver, pliers or a shovel. The device has the characteristics of simple structure, complete functions and convenience in use. A nail pulling head, a wrench, a hammer, a screwdriver, pliers or a shovel can be conveniently installed on the pinch bar, and meanwhile the requirement for extension of the length of the pinch bar is met.
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Description

Technical Field

[0001] This utility model relates to the field of hardware tool technology, and specifically to an extension structure of a multi-functional tool. Background Technology

[0002] In the construction industry, various hardware tools are frequently used for a variety of purposes, such as disassembling bolts, screws, and nuts of various sizes and shapes; driving in or removing nails; and shoveling sand and gravel. Hardware tools include small tools such as pliers and hammers, and can be used in many areas of production and daily life. Hardware tools sold on the market are all individual units with independent functions, and they take up a lot of space when placed. Summary of the Invention

[0003] This utility model primarily addresses the shortcomings of existing technologies by providing an extension structure for a multi-functional tool. It features a simple structure, comprehensive functions, and ease of use. It allows for convenient mounting of nail heads, wrenches, hammers, screwdrivers, pliers, or shovels onto the pry bar, reducing downtime caused by searching for different tools and improving production efficiency. Simultaneously, it accommodates the extension of the pry bar's length; a single-section structure is used when space is limited and a shorter length is required, while a multi-section structure is used when leverage is needed.

[0004] The above-mentioned technical problems of this utility model are mainly solved by the following technical solutions:

[0005] An extension structure of a multi-functional tool includes at least one pry bar, with two adjacent pry bars extending from each other via a direct or indirect structure. One or both ends of the pry bar are provided with tools, including nail pullers, wrenches, hammers, screwdrivers, pliers, or shovels.

[0006] A wrench is a common tool for installation and removal. It's a hand tool that uses leverage to tighten or loosen bolts, screws, nuts, and other threaded fasteners that grip the open or recessed portion of the bolt or nut. Wrenches typically have clamps at one or both ends of the handle. Applying force to the handle allows you to tighten or loosen bolts or nuts. When using a wrench, apply force to the handle in the direction of thread rotation to tighten or loosen the bolt or nut.

[0007] A screwdriver is a tool used to turn screws to force them into place. It usually has a thin wedge-shaped head. Common types also include hex screwdrivers, which come in both internal and external hex types.

[0008] A hammer is a tool used to strike objects, causing them to move or deform. It is most commonly used to drive nails, straighten things, or break objects apart. Hammers come in a variety of shapes and sizes.

[0009] Pliers are widely used in the electrical field and can be considered an essential tool. However, existing wire cutters have limited functionality and are prone to cutting the metal wires inside the wire when using them to cut the wire.

[0010] Preferably, a connecting joint is provided between two adjacent pry bars, and the connecting joint adopts a threaded joint or a quick-change structure joint to extend and fix the pry bar.

[0011] Preferably, the pry bar has at least one extension rod at its rear end, both ends of the pry bar have threaded holes, one end of the extension rod has a threaded hole, and the other end of the extension rod has a threaded head.

[0012] Preferably, the pry bar and extension bar are hollow structures.

[0013] Preferably, the nail head has a round head, a flat head, or a pointed head.

[0014] Preferably, the nail puller has a horizontal, acute-angled, or right-angled structure, and the front end or both sides of the nail puller are provided with cutting edges.

[0015] Preferably, a transition joint is provided between the tool and the pry bar, and both ends of the pry bar are provided with welding holes or threaded holes. The transition joint and the pry bar are fixed by welding or threading.

[0016] Preferably, the wrench is an open-end wrench, ratchet wrench, adjustable wrench, box wrench, energy-saving wrench, or socket wrench.

[0017] This invention can achieve the following effects:

[0018] This invention provides an extension structure for a multi-functional tool, which, compared with existing technologies, features a simple structure, complete functions, and ease of use. It allows for convenient mounting of nail heads, wrenches, hammers, screwdrivers, pliers, or shovels onto the pry bar, reducing downtime caused by searching for different tools and improving production efficiency. Simultaneously, it accommodates the extension of the pry bar's length; a single-section structure is used when space is limited and a shorter length is needed, while a multi-section structure is used when leverage is required. Attached Figure Description

[0019] Figure 1 This is a schematic diagram of the direct connection structure of this utility model.

[0020] Figure 2 This is a schematic diagram of the structure of this utility model with added connecting joints.

[0021] Figure 3 This is a cross-sectional view of the welding pry bar in this utility model.

[0022] Figure 4 This is a schematic diagram of the threaded pry bar in this utility model.

[0023] Figure 5This is a schematic diagram of the extension rod in this utility model.

[0024] Figure 6 This is a schematic diagram of the connecting joint in this utility model.

[0025] Figure 7 This is a schematic diagram of the nail-removing head in this utility model.

[0026] Figure 8 This is a schematic diagram of the open-end wrench in this utility model.

[0027] Figure 9 This is a schematic diagram of the ratchet wrench in this utility model.

[0028] Figure 10 This is a schematic diagram of the hammer in this utility model.

[0029] Figure 11 This is a schematic diagram of the structure of the nail-removing head with a cutting edge in this utility model.

[0030] In the diagram: Tool 1, pry bar 2, extension bar 3, connector 4, welding hole 5, threaded hole 6, threaded head 7, nail puller 8, transition joint 9, open wrench 10, ratchet wrench 11, hammer 12, cutting edge 13. Detailed Implementation

[0031] The technical solution of this utility model will be further described in detail below through embodiments and in conjunction with the accompanying drawings.

[0032] Example: Figure 1-11 As shown, an extension structure of a multi-functional tool includes at least one pry bar 2. Two adjacent pry bars 2 are extended directly or indirectly, and a connecting joint 4 is provided between them. The connecting joint 4 uses a threaded joint or a quick-change joint to extend and fix the pry bar 2. At least one extension rod 3 is provided at the rear end of the pry bar 2. Both the pry bar 2 and the extension rod 3 are hollow structures. Both ends of the pry bar 2 have threaded holes 6, and one end of the extension rod 3 has a threaded hole 6, while the other end of the extension rod 3 has a threaded head 7. A tool 1 is provided at one or both ends of the pry bar 2. A transition joint 9 is provided between the tool 1 and the pry bar 2. Both ends of the pry bar 2 have welding holes 5 or threaded holes 6, and the transition joint 9 is fixed to the pry bar 2 using a welding structure or a threaded structure. The tool 1 includes a nail puller 8, a wrench, a hammer 12, a screwdriver, pliers, or a shovel. The nail puller 8 has a round head, a flat head, or a pointed head. The nail puller head 8 has a horizontal, acute-angled, or right-angled structure, and the front end or both sides of the nail puller head 8 are provided with cutting edges 13. The wrench is an open-end wrench 10, a ratchet wrench 11, an adjustable wrench, a box wrench, an energy-saving wrench, or a socket wrench.

[0033] In summary, the extended structure of this multi-functional tool features a simple structure, comprehensive functions, and ease of use. It allows for convenient mounting of nail heads, wrenches, hammers, screwdrivers, pliers, or shovels onto the pry bar, reducing downtime caused by searching for different tools and improving production efficiency. Simultaneously, it accommodates the extension of the pry bar's length; a single-section structure is used when space is limited and a shorter length is needed, while a multi-section structure is used when leverage is required.

[0034] It will be apparent to those skilled in the art that this invention is not limited to the details of the above exemplary embodiments, and that it can be implemented in other specific forms without departing from the essential characteristics of the invention. Therefore, the embodiments should be considered illustrative and non-limiting in all respects, and the scope of this invention is defined by the appended claims rather than the foregoing description. Thus, it is intended that all variations falling within the meaning and scope of equivalents of the claims be included within this invention. No reference numerals in the claims should be construed as limiting the scope of the claims.

[0035] In summary, the above description is only a specific embodiment of the present utility model, but the structural features of the present utility model are not limited thereto. Any changes or modifications made by those skilled in the art within the scope of the present utility model are covered by the patent scope of the present utility model.

Claims

1. An extension structure of a multi-functional tool, characterized in that: It includes at least one pry bar (2), and two adjacent pry bars (2) are extended by a direct or indirect structure. One or both ends of the pry bar (2) are provided with tools (1), and the tools (1) include nail puller (8), wrench, hammer (12), screwdriver, pliers or shovel.

2. The extension structure of a multi-functional tool according to claim 1, characterized in that: A connecting joint (4) is provided between two adjacent pry bars (2). The connecting joint (4) uses a threaded joint or a quick-change structure joint to lengthen and fix the pry bar (2).

3. The extension structure of a multi-functional tool according to claim 1, characterized in that: The pry bar (2) has at least one extension rod (3) at its rear end. Both ends of the pry bar (2) are provided with threaded holes (6). One end of the extension rod (3) is provided with a threaded hole (6), and the other end of the extension rod (3) is provided with a threaded head (7).

4. The extension structure of a multi-functional tool according to claim 3, characterized in that: The pry bar (2) and extension bar (3) are hollow structures.

5. The extension structure of a multi-functional tool according to claim 1, characterized in that: The nail head (8) is a round head structure, a flat head structure, or a pointed head structure.

6. The extension structure of a multi-functional tool according to claim 5, characterized in that: The nail-removing head (8) has a horizontal structure, an acute-angle structure or a right-angle structure, and the front end or both sides of the nail-removing head (8) are provided with a cutting edge (13).

7. The extension structure of a multi-functional tool according to claim 1, characterized in that: The tool (1) and the pry bar (2) are provided with a transition joint (9). Both ends of the pry bar (2) are provided with welding holes (5) or threaded holes (6). The transition joint (9) and the pry bar (2) are fixed by welding or threaded structure.

8. The extension structure of a multi-functional tool according to claim 1, characterized in that: The wrench is an open-end wrench (10), a ratchet wrench (11), an adjustable wrench, a box wrench, an energy-saving wrench, or a socket wrench.