Multifunctional nail puller
By utilizing the moving parts and gear transmission system of the multi-functional nail puller, the length of the nail puller rod can be flexibly adjusted and the screwdriver can be quickly replaced, solving the problem of low disassembly efficiency of traditional nail pullers and improving the convenience and stability of disassembling equipment cabinets.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-03-27
- Publication Date
- 2026-03-03
AI Technical Summary
Traditional nail pullers require frequent tool changes when disassembling equipment cabinets, and the installation of internal parts is inconvenient, affecting disassembly efficiency.
A multi-functional nail puller was designed, which allows for flexible adjustment of the nail puller rod length through a movable part and gear transmission system. It is equipped with a replaceable screwdriver and a magnet for fixation, adapting to disassembly needs of different specifications and functions.
It improves disassembly efficiency and convenience, adapts to different cabinet structures, supports quick replacement of various types of screwdrivers, and ensures operational stability and reliability.
Smart Images

Figure CN223961259U_ABST
Abstract
Description
Technical Field
[0001] This utility model belongs to the field of nail puller technology, and specifically relates to a multifunctional nail puller. Background Technology
[0002] Traditional equipment cabinets are typically constructed with channel steel foundations, and the cabinets are bolted to the channel steel. However, nails are often used to connect the cabinet body to the shelves and back panels, and hinges are also fixed with nails. If the nails are not secure enough, or if a component needs to be disassembled for reuse, the nails must be removed to separate the component.
[0003] In the existing technology, when removing nails from equipment cabinets, there are other mechanical parts between components. Therefore, different disassembly tools need to be changed during the disassembly process. Frequent tool changes will affect the disassembly efficiency. In addition, some parts are installed inside the cabinet, and the commonly used nail pullers are not long enough, which increases the difficulty of disassembly. Utility Model Content
[0004] The purpose of this utility model is to provide a multi-functional nail puller that facilitates disassembly and has an adjustable handle length.
[0005] To achieve the above objectives, the present invention adopts the following technical solution:
[0006] A multi-functional nail puller includes a fixed rod and a nail puller, wherein a movable part is installed between the fixed rod and the nail puller;
[0007] The movable component includes a fixed plate and a fixed sleeve. Two fixed screws are connected to one side of the fixed plate. The fixed sleeve is threadedly connected to the fixed screws. A first gear is rotatably connected to the outer surface of the fixed screws. A rotating column is rotatably connected to the inner side of the fixed sleeve. A second gear is connected to one end of the rotating column. The second gear meshes with the first gear. A rotating sleeve is rotatably connected to the outer surface of one end of the fixed sleeve. A toothed ring is connected to the inner side of the rotating sleeve. The toothed ring meshes with the two first gears. A threaded rod is slidably connected to the inner cavity of the rotating column. A threaded sleeve is fitted onto the outer surface of the rotating column. A second threaded groove is formed on the inner side of one end of the threaded sleeve. The threaded rod and the second threaded groove are threadedly connected. A first movable sleeve is connected to the outer surface of one end of the threaded sleeve. One end of the threaded rod passes through the first movable sleeve and is fixedly connected to a second movable sleeve. The second movable sleeve is fitted onto the outer surface of the first movable sleeve. The first movable sleeve is fitted onto the outer surface of the fixed sleeve.
[0008] Preferably, a first threaded groove is provided on the inner side of one end of the fixed sleeve. The first threaded groove is threadedly connected to the threaded sleeve. The cooperation between the threaded sleeve and the first threaded groove causes it to generate axial displacement during rotation, thereby causing the threaded sleeve to gradually move in one direction.
[0009] Preferably, the outer surface of the fixed sleeve is provided with a first sliding groove, and the outer surface of the first movable sleeve is connected with a first limiting strip. The multiple guiding mechanism not only enhances the rigidity and stability of the structure, but also effectively prevents the first and second movable sleeves from rotating unnecessarily during the sliding process.
[0010] Preferably, a second sliding groove is provided on the inner side of the second movable sleeve, and the second sliding groove is slidably connected to the first limiting strip. The inner side of the first limiting strip is slidably connected to the first sliding groove. Stable sliding is achieved through the relative sliding of the second sliding groove and the first limiting strip.
[0011] Preferably, a second limiting strip is connected to the inner side of the threaded sleeve, and a third sliding groove is provided on the outer surface of the rotating column. The third sliding groove is slidably connected to the second limiting strip. After receiving the force, the second limiting strip will effectively transmit the force to the threaded sleeve, causing the threaded sleeve to start rotating around the threaded rod.
[0012] Preferably, one end of the screw-in rod is connected to the second slide groove, and one end of the fixing rod is connected to a plug rod, which can be adapted to screwdrivers of different specifications and functions, providing great convenience for disassembling various types of parts.
[0013] Preferably, the plug rod has a hexagonal plug groove inside, and a screwdriver is inserted into the hexagonal plug groove. The hexagonal rod at one end of the screwdriver is inserted into the hexagonal plug groove to achieve quick connection.
[0014] The beneficial effects of this utility model are as follows:
[0015] 1. In this utility model, the rotation of the threaded rod drives the coordinated action of the first and second movable sleeves through the linear movement of the threaded sleeve, enabling the entire device to flexibly adjust its size to adapt to different cabinet structure requirements. This design simplifies the operation steps, ensures the stability and accuracy of the adjustment process, and provides a more comfortable force transmission path for the use of the nail-removing rod. The overall design not only improves disassembly efficiency but also enhances the reliability and convenience of the tool in complex tasks.
[0016] 2. In this utility model, the sliding of the first movable sleeve and the second movable sleeve achieves stability through the relative sliding of the second sliding groove and the first limiting strip. At the same time, the cooperation between the first limiting strip and the first sliding groove effectively prevents the rotation of the movable sleeve during the sliding process, ensuring smooth and accurate operation. When installing the screwdriver, the hexagonal rod can be easily inserted into the hexagonal insertion slot and fixed by the internal magnet to prevent loosening, which improves the convenience and stability of installation and disassembly. The overall design is not only suitable for the quick replacement of various types of screwdrivers, but also can efficiently complete the disassembly of different parts, demonstrating strong applicability and operational reliability. Attached Figure Description
[0017] Figure 1 This is a three-dimensional structural diagram of the present invention;
[0018] Figure 2 This is a schematic diagram of the structure of the movable component of this utility model;
[0019] Figure 3 This is a schematic diagram of the disassembled structure of the movable component of this utility model;
[0020] Figure 4 This is a schematic diagram of the connector rod and screwdriver of this utility model;
[0021] Wherein: 1-moving part; 11-fixed plate; 12-rotating sleeve; 121-gear ring; 13-fixing screw; 131-first gear; 14-fixed sleeve; 141-first slide groove; 142-first threaded groove; 15-first movable sleeve; 151-first limiting strip; 16-second movable sleeve; 161-second slide groove; 17-rotating column; 171-threaded rod; 172-second gear; 173-third slide groove; 18-threaded sleeve; 181-second threaded groove; 182-second limiting strip; 2-fixing rod; 21-insertion rod; 22-hexagonal insertion groove; 23-screwdriver; 3-nail puller. Detailed Implementation
[0022] To better understand the above-mentioned objectives, features, and advantages of this utility model, the present utility model will be further described below with reference to the accompanying drawings and embodiments. It should be noted that, unless otherwise specified, the embodiments and features described in these embodiments can be combined with each other.
[0023] Many specific details are set forth in the following description in order to provide a full understanding of the present invention. However, the present invention may also be implemented in other ways different from those described herein. Therefore, the present invention is not limited to the specific embodiments disclosed in the following specification.
[0024] Please see Figures 1-4 This utility model provides a technical solution: a multi-functional nail remover, including a fixed rod 2 and a nail-removing rod 3, with a movable part 1 installed between the fixed rod 2 and the nail-removing rod 3;
[0025] The movable component 1 includes a fixed plate 11 and a fixed sleeve 14. Two fixed screws 13 are connected to one side of the fixed plate 11. The fixed sleeve 14 is threadedly connected to the fixed screws 13. A first gear 131 is rotatably connected to the outer surface of the fixed screws 13. A rotating column 17 is rotatably connected to the inner side of the fixed sleeve 14. A second gear 172 is connected to one end of the rotating column 17 and meshes with the first gear 131. A rotating sleeve 12 is rotatably connected to the outer surface of one end of the fixed sleeve 14. A gear ring 121 is connected to the inner side of the rotating sleeve 12 and meshes with the two first gears 131. A 31-meshing connection is established, with a threaded rod 171 slidably connected to the inner cavity of the rotating column 17. A threaded sleeve 18 is fitted onto the outer surface of the rotating column 17. A second threaded groove 181 is formed on the inner side of one end of the threaded sleeve 18. The threaded rod 171 and the second threaded groove 181 are threadedly connected. A first movable sleeve 15 is connected to the outer surface of one end of the threaded sleeve 18. One end of the threaded rod 171 passes through the first movable sleeve 15 and is connected to a second movable sleeve 16. The second movable sleeve 16 is fitted onto the outer surface of the first movable sleeve 15, and the first movable sleeve 15 is fitted onto the outer surface of the fixed sleeve 14. When adjusting the grip length, rotating the rotating sleeve 12 causes its inner toothed ring 121 to mesh with two first gears 131, thereby driving the two first gears 131 to rotate. The synergistic action of the two first gears 131, through a precise gear transmission relationship, further drives the threaded rod 171 to rotate in a specific direction. The rotation of the threaded rod 171 will cause the rotating column 17 that is threaded with it to rotate synchronously. During the rotation of the rotating column 17, the force is transmitted to the second limit bar 182 through the geometric design of the third slide groove 173.
[0026] After receiving a force, the second limiting bar 182 effectively transmits the force to the threaded sleeve 18, causing the threaded sleeve 18 to begin rotating around the threaded rod 171. During this process, the second threaded groove 181 within the threaded sleeve 18 applies a relative motion force to the threaded rod 171, thereby achieving linear movement during continuous rotation. Simultaneously, the engagement between the threaded sleeve 18 and the first threaded groove 142 causes axial displacement during rotation. Consequently, the threaded sleeve 18 gradually moves in one direction, while the threaded rod 171 moves synchronously according to the force relationship.
[0027] As the threaded rod 171 moves, it drives the second movable sleeve 16 to move along the guide rail or structural frame, while the movement of the threaded sleeve 18 also drives the first movable sleeve 15 to move. The coordinated action of the two movable sleeves enables precise adjustment of the length of the entire movable part 1, allowing the dimensions of the entire device to be flexibly adjusted according to operational needs.
[0028] In practice, this design makes the operation of the nail-removing rod 3 more convenient. By adjusting the length of the movable part 1, it can not only flexibly adapt to cabinet structures of different sizes, but also provide operators with a more comfortable force transmission path, effectively improving the efficiency and ease of operation when disassembling internal cabinet parts. This design balances the flexibility and reliability of the tool, providing an efficient solution for complex disassembly tasks while reducing cumbersome adjustment steps during operation.
[0029] like Figure 3 As shown, a first threaded groove 142 is provided on the inner side of one end of the fixed sleeve 14, and the first threaded groove 142 is threadedly connected to the threaded sleeve 18. The cooperation between the threaded sleeve 18 and the first threaded groove 142 causes it to generate axial displacement during rotation, thereby causing the threaded sleeve 18 to gradually move in one direction.
[0030] like Figure 3 As shown, the outer surface of the fixed sleeve 14 is provided with a first sliding groove 141, and the outer surface of the first movable sleeve 15 is connected with a first limiting strip 151. The first limiting strip 151 also slides relative to the first sliding groove 141. The multiple guiding mechanism not only enhances the rigidity and stability of the structure, but also effectively prevents the first movable sleeve 15 and the second movable sleeve 16 from rotating unnecessarily during the sliding process.
[0031] like Figure 3 As shown, a second sliding groove 161 is provided on the inner side of the second movable sleeve 16. The second sliding groove 161 is slidably connected to the first limiting strip 151, and the inner side of the first limiting strip 151 is slidably connected to the first sliding groove 141. Stable sliding is achieved through the relative sliding between the second sliding groove 161 and the first limiting strip 151.
[0032] like Figure 3 As shown, a second limiting strip 182 is fixedly connected to the inner side of the threaded sleeve 18, and a third sliding groove 173 is provided on the outer surface of the rotating column 17. The third sliding groove 173 is slidably connected to the second limiting strip 182. After receiving a force, the second limiting strip 182 will effectively transmit the force to the threaded sleeve 18, causing the threaded sleeve 18 to start rotating around the threaded rod 171.
[0033] like Figure 4 As shown, one end of the screwdriver 3 is fixedly connected to the second slide groove 161, and one end of the fixing rod 2 is fixedly connected to the insertion rod 21. This design allows for compatibility with screwdrivers 23 of different specifications and functions, providing great convenience for disassembling various types of parts.
[0034] like Figure 4 As shown, the plug rod 21 has a hexagonal plug slot 22 inside, and a screwdriver 23 is inserted into the hexagonal plug slot 22. The hexagonal rod at one end of the screwdriver 23 achieves quick connection by inserting it into the hexagonal plug slot 22.
[0035] The device's operation and working principle are as follows: When adjusting the handle length, rotating the rotating sleeve 12 causes the gear ring 121 inside the rotating sleeve 12 to drive the two first gears 131 to rotate. Under the synergistic action of the two first gears 131, the threaded rod 171 begins to rotate. The rotation of the threaded rod 171 further drives the rotating column 17 to rotate. During the rotation of the rotating column 17, a force is applied to the second limiting strip 182 through the third sliding groove 173, thereby transmitting the force to the threaded sleeve 18. The threaded sleeve 18 begins to rotate under the push of the force, and simultaneously applies a reverse force to the threaded rod 171 through the second threaded groove 181.
[0036] During the rotation of the threaded sleeve 18, its engagement with the first threaded groove 142 causes the threaded sleeve 18 to gradually move axially. This movement causes both the threaded sleeve 18 and the threaded rod 171 to shift simultaneously. When the threaded rod 171 moves, it pushes the second movable sleeve 16 to move synchronously; while the movement of the threaded sleeve 18 causes the first movable sleeve 15 to move as well, thus completing the adjustment of the length of the entire movable part 1. In this way, the operator can easily adjust the handle length, thereby controlling the nail puller 3 more efficiently and adapting to different scenario requirements, especially when disassembling internal cabinet parts, making the operation more convenient.
[0037] During the sliding process of the first movable sleeve 15 and the second movable sleeve 16, the second slide groove 161 slides relative to the first limiting strip 151, thereby ensuring the stability of the sliding process. At the same time, the first limiting strip 151 slides relative to the first slide groove 141, effectively preventing unnecessary rotation during sliding and ensuring that the movement of the first movable sleeve 15 and the second movable sleeve 16 is more stable and precise.
[0038] When installing the screwdriver 23, the hexagonal shaft at one end of the screwdriver 23 can be inserted into the hexagonal insertion slot 22. Furthermore, a magnet is designed inside the hexagonal insertion slot 22 to increase the magnetic force of the screwdriver 23, ensuring a secure installation and preventing it from easily falling off. This design facilitates the installation and removal of the screwdriver 23 and supports the replacement of different types of screwdrivers 23 to meet diverse operational needs. During disassembly, this design can efficiently adapt to the removal of different types of parts, greatly improving operational flexibility and efficiency.
[0039] The above description is merely a preferred embodiment of the present utility model and is not intended to limit the present utility model in any other way. Any person skilled in the art may make changes or modifications to the above-disclosed technical content to create equivalent embodiments for application in other fields. However, any simple modifications, equivalent changes, and modifications made to the above embodiments based on the technical essence of the present utility model without departing from the technical solution of the present utility model shall still fall within the protection scope of the technical solution of the present utility model.
Claims
1. A multifunctional nail puller, comprising a fixing rod (2) and a nail puller (3), characterized in that: A movable part (1) is installed between the fixed rod (2) and the nail-pulling rod (3); The movable component (1) includes a fixed plate (11) and a fixed sleeve (14). Two fixed screws (13) are connected to one side of the fixed plate (11). The fixed sleeve (14) is threadedly connected to the fixed screws (13). A first gear (131) is rotatably connected to the outer surface of the fixed screws (13). A rotating column (17) is rotatably connected to the inner side of the fixed sleeve (14). A second gear (172) is connected to one end of the rotating column (17). The second gear (172) meshes with the first gear (131). A rotating sleeve (12) is rotatably connected to the outer surface of one end of the fixed sleeve (14). A gear ring (121) is connected to the inner side of the rotating sleeve (12). The gear ring (121) is connected to the two first gears (131). 31) The rotating column (17) is slidably connected to the inner cavity of the rotating column (17) with a threaded rod (171). The outer surface of the rotating column (17) is fitted with a threaded sleeve (18). A second threaded groove (181) is opened on the inner side of one end of the threaded sleeve (18). The threaded rod (171) and the second threaded groove (181) are threadedly connected. A first movable sleeve (15) is connected to the outer surface of one end of the threaded sleeve (18). One end of the threaded rod (171) passes through the first movable sleeve (15) and a second movable sleeve (16) is fixedly connected to one end of the threaded rod (171). The second movable sleeve (16) is fitted onto the outer surface of the first movable sleeve (15). The first movable sleeve (15) is fitted onto the outer surface of the fixed sleeve (14).
2. The multifunctional nail remover according to claim 1, characterized in that: The fixed sleeve (14) has a first threaded groove (142) on the inner side of one end, and the first threaded groove (142) is threadedly connected to the threaded sleeve (18).
3. The multifunctional nail remover according to claim 1, characterized in that: The outer surface of the fixed sleeve (14) is provided with a first sliding groove (141), and the outer surface of the first movable sleeve (15) is connected with a first limiting strip (151).
4. A multifunctional nail remover according to claim 3, characterized in that: The second movable sleeve (16) has a second sliding groove (161) on its inner side. The second sliding groove (161) is slidably connected to the first limiting strip (151). The inner side of the first limiting strip (151) is slidably connected to the first sliding groove (141).
5. A multifunctional nail remover according to claim 1, characterized in that: The inner side of the threaded sleeve (18) is connected to a second limiting strip (182), and the outer surface of the rotating column (17) is provided with a third sliding groove (173), which is slidably connected to the second limiting strip (182).
6. A multifunctional nail remover according to claim 4, characterized in that: One end of the nail-pulling rod (3) is connected to the second slide groove (161), and one end of the fixing rod (2) is connected to the plug rod (21).
7. A multifunctional nail remover according to claim 6, characterized in that: The plug rod (21) has a hexagonal plug groove (22) inside, and a screwdriver (23) is inserted into the hexagonal plug groove (22).