Multifunctional alloy rotary file handle rod

By incorporating a limiting tripod and magnetic ring within the handle of the rotary file, the problem of the rotary file rolling and falling off the equipment is solved, achieving stable support and convenient portability.

CN223997454UActive Publication Date: 2026-03-17HUAIAN SMOOTH CUTTING TOOL MFG CO LTD
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Patent Information

Application Number
CN202520735600.6
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2025-04-18
Publication Date
2026-03-17
Estimated Expiration
2035-04-18

AI Technical Summary

Technical Problem

Existing rotary files have cylindrical heads and handles, which are prone to rolling or falling off the equipment surface, affecting the operation and portability of the equipment.

Method used

A retractable limiting tripod and a magnetic ring are installed inside the handle. The rotation of the limiting tripod and the elastic deformation of the coil spring achieve stable support and magnetic connection of the handle, improving placement stability.

Benefits of technology

The stability of the rotary file has been enhanced, preventing it from rolling and falling off, thus improving portability and user experience.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model relates to the technical field of rotary file handle rods, in particular to a multifunctional alloy rotary file handle rod, which comprises a handle, a file head, a handle rod and a handle rod, a movable cavity is formed in the surface of the handle, and a guide groove is formed in the inner wall of the movable cavity; a limiting structure is installed on the inner side of the movable cavity and comprises a limiting tripod, the limiting tripod is movably installed on the inner wall of the movable cavity through a rotating shaft, a coil spring is arranged at the joint of the limiting tripod and the movable cavity, and a pushing block is movably installed on the inner side of the movable cavity. A guide block is arranged on the outer wall of the pushing block, and a threaded groove is formed in the right side wall of the pushing block. The telescopic and movable limiting tripod is arranged in the handle, when the surface of the handle is exposed, the outer wall of the handle is concave and convex, the device can be supported and limited, the placing stability of the device is improved, and inconvenience caused by the fact that the device rolls on equipment is avoided.
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Description

Technical Field

[0001] This utility model relates to the field of rotary file handle technology, specifically a multifunctional alloy rotary file handle. Background Technology

[0002] Rotary files are mainly used in conjunction with high-speed electric grinders or pneumatic tools. Alloy rotary files can be used to process cast iron, cast steel, carbon steel, alloy steel, stainless steel, hardened steel, copper, and aluminum, etc.

[0003] In response, Chinese patent application number CN202021141597.9 discloses a detachable rotary file, relating to the field of rotary file technology. The key technical points of the solution include a file head, a connecting groove on one side of the file head, and a file handle that inserts into the connecting groove. Two sets of connecting devices are provided between the file handle and the file head for fixing the file handle and file head. Each connecting device includes a mounting groove on the inner circumferential surface of the connecting groove and a fixing member that slides radially along the connecting groove and is inserted into the outer circumferential surface of the file handle. A first spring is fixed to the side of the fixing member away from the file handle, and the end of the first spring away from the fixing member is fixedly connected to the side of the mounting groove away from the file handle. A driving mechanism is provided in the mounting groove to prevent the fixing member from moving towards the side closer to the file handle. This utility model solves the problem of rotary files being inconvenient to carry due to their excessive length, achieving the effect of making rotary files easy to carry.

[0004] The rotary file has a cylindrical file head and handle. When the rotary file is placed on the equipment, it will roll on the surface of the equipment and is easy to lose or fall into the corners of the equipment, making it difficult to remove and affecting the operation of the equipment.

[0005] Therefore, in order to solve the above problems, a multifunctional alloy rotary file handle is proposed. Utility Model Content

[0006] The purpose of this utility model is to provide a multifunctional alloy rotary file handle rod to solve the problem mentioned in the background art that the rotary file in the prior art has a cylindrical file head and file handle. When the rotary file is placed on the equipment, it will roll on the surface of the equipment, making it easy to lose or fall into the corners of the equipment, which is difficult to remove and affects the operation of the equipment.

[0007] To achieve the above objectives, this utility model provides the following technical solution: a multifunctional alloy rotary file handle, comprising: a handle, wherein a file head is provided at the left end of the handle;

[0008] The surface of the handle has a movable cavity, and the inner wall of the movable cavity has a guide groove.

[0009] A limiting structure is installed inside the movable cavity. The limiting structure includes a limiting tripod, which is movably mounted on the inner wall of the movable cavity via a pivot. A coil spring is provided at the connection between the limiting tripod and the movable cavity. A pushing block is movably mounted inside the movable cavity. A guide block is provided on the outer wall of the pushing block. A threaded groove is provided on the right side wall of the pushing block. A threaded rod is movably mounted inside the right end of the handle via a bearing. A hand-rotating block is fixedly connected to the right end of the threaded rod. A magnetic ring is fixedly mounted on the outer wall of the right end of the handle.

[0010] Preferably, the limiting tripod has a hollow structure, and the outer wall of the limiting tripod and the magnetic ring is flush with the outer wall of the handle.

[0011] Preferably, the coil spring is sleeved on the outside of the rotating shaft, and its two ends are connected to the limiting tripod and the movable cavity. The coil spring is used to limit the tripod to be automatically stored in the movable cavity.

[0012] Preferably, the limiting tripod is provided in four sets, the pushing block is located between the four sets of limiting tripods, and the pushing block abuts against the limiting tripod.

[0013] Preferably, the guide block is slidably installed in the guide groove.

[0014] Preferably, the left end of the threaded rod is located inside the movable cavity and is threadedly connected to the threaded groove, and the right wall of the hand-turning block is flush with the right wall of the handle.

[0015] Compared with the prior art, the beneficial effects of this utility model are: by setting a retractable and movable limiting tripod inside the handle, the utility model can form concave and convex shapes on the outer wall of the handle when the handle surface is exposed, which can support and limit the device, improve the placement stability of the device, and prevent the device from rolling on the equipment, thus avoiding inconvenience.

[0016] This invention features a limiting structure. Rotating the hand-operated block causes a threaded rod to rotate inside the handle. The threaded rod is threadedly connected to the push block. The rotation of the threaded rod causes the push block to move stably within the movable cavity through the cooperation of the guide block and guide groove. As the push block moves, it pushes the limiting tripod, causing the limiting tripod to rotate via a pivot. This rotation causes the coil spring to elastically deform, and the outer wall of the limiting tripod protrudes from the surface of the handle, creating an uneven surface. When the device is placed, the limiting tripod can... The device features a support limit to improve its stability, making it easy to carry and store, and preventing it from rolling around and causing inconvenience. During installation, rotating the handwheel block in the opposite direction moves the push block away from the limiting tripod. The limiting tripod loses the support of the push block and, under the elastic action of the coil spring, is stored inside the movable cavity, making the outer wall of the handle flat. It can be installed and connected to the driving tool like an existing rotary file, facilitating use. Furthermore, the magnetic ring can magnetically attract the driving tool, providing a further connection between the device and the driving tool, preventing the device from falling off and affecting the user experience. Attached Figure Description

[0017] Figure 1 This is a front view schematic diagram of the structure of this utility model;

[0018] Figure 2 This is a front sectional view of the structure of the movable cavity of this utility model;

[0019] Figure 3 This is an exploded cross-sectional view of the movable cavity of this utility model.

[0020] Figure 4 This is a front view cross-sectional diagram of the extended state structure of the tripod of this utility model.

[0021] In the diagram: 1. Handle; 11. File head; 12. Movable cavity; 13. Guide groove; 2. Limiting structure; 21. Limiting tripod; 22. Coil spring; 23. Push block; 24. Guide block; 25. Threaded groove; 26. Threaded rod; 27. Hand-turning block; 28. Magnetic 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 of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0023] Please see Figures 1-4 An embodiment of a multifunctional alloy rotary file handle provided by this utility model:

[0024] The handle 1 and file 11 used in this application are products that can be purchased directly from the market. Their principles and connection methods are existing technologies well known to those skilled in the art, so they will not be described in detail here.

[0025] A multifunctional alloy rotary file handle includes: a handle 1, and a file head 11 is provided at the left end of the handle 1;

[0026] The surface of the handle 1 has a movable cavity 12, and the inner wall of the movable cavity 12 has a guide groove 13.

[0027] A limiting structure 2 is installed inside the movable cavity 12. The limiting structure 2 includes a limiting tripod 21, which is movably mounted on the inner wall of the movable cavity 12 via a pivot. A coil spring 22 is provided at the connection between the limiting tripod 21 and the movable cavity 12. A push block 23 is movably mounted inside the movable cavity 12. A guide block 24 is provided on the outer wall of the push block 23. A threaded groove 25 is provided on the right side wall of the push block 23. A threaded rod 26 is movably mounted inside the right end of the handle 1 via a bearing. A hand-rotating block 27 is fixedly connected to the right end of the threaded rod 26. A magnetic ring 28 is fixedly mounted on the outer wall of the right end of the handle 1. By setting a retractable limiting tripod 21 inside the handle 1, when the surface of the handle 1 is exposed, a concave-convex shape is formed on the outer wall of the handle 1, which can support and limit the device, improve the placement stability of the device, and prevent the device from rolling on the equipment, thus avoiding inconvenience.

[0028] Furthermore, the limiting tripod 21 has a hollow structure, and the outer walls of the limiting tripod 21 and the magnetic ring 28 are flush with the outer wall of the handle 1. The setting of the limiting tripod 21 can reduce the weight of the device and improve portability. The magnetic ring 28 and the stored limiting tripod 21 will not change the external force surface of the handle 1, thus allowing the handle 1 to be installed and connected to the drive tool in the same way as the existing rotary file.

[0029] Furthermore, the coil spring 22 is sleeved on the outside of the rotating shaft, and its two ends are connected to the limiting tripod 21 and the movable cavity 12. The coil spring 22 is used to limit the tripod 21 to automatically retract into the movable cavity 12. The setting of the coil spring 22 can drive the limiting tripod 21 to automatically retract into the movable cavity 12 when the push block 23 is reset to the right, so as to keep the outer wall of the handle 1 flush and easy to use.

[0030] Furthermore, the limiting tripod 21 is provided with four sets, and the pushing block 23 is located between the four sets of limiting tripods 21. The pushing block 23 abuts against the limiting tripod 21, and the movement of the pushing block 23 can drive the extension and retraction of the four sets of limiting tripods 21.

[0031] Furthermore, the guide block 24 is slidably installed in the guide groove 13, and the guide block 24 cooperates with the guide groove 13 to guide and limit the movement of the push block 23 inside the movable cavity 12.

[0032] Furthermore, the left end of the threaded rod 26 is located inside the movable cavity 12 and is threadedly connected to the threaded groove 25. The right wall of the hand-turning block 27 is flush with the right wall of the handle 1. Rotating the hand-turning block 27 can drive the push block 23 inside the movable cavity 12 to move.

[0033] Working principle: Rotating the hand-rotating block 27 can drive the threaded rod 26 to rotate inside the handle 1. The threaded rod 26 is threadedly connected to the push block 23. The rotation of the threaded rod 26 drives the push block 23 to move stably in the movable cavity 12 through the cooperation of the guide block 24 and the guide groove 13. When the push block 23 moves, it can push the limiting tripod 21, so that the limiting tripod 21 rotates through the pivot. When the limiting tripod 21 rotates, it will drive the coil spring 22 to undergo elastic deformation, and the outer wall of the limiting tripod 21 will be exposed on the surface of the handle 1. This makes the outer wall of the handle 1 uneven. When the device is placed, the limiting tripod 21 can support and limit the device, improve the placement stability of the device, facilitate carrying and storage, and prevent the device from rolling around and causing inconvenience.

[0034] During installation, the hand-rotating block 27 is rotated in the opposite direction, causing the pushing block 23 to move away from the limiting tripod 21. The limiting tripod 21 loses the support of the pushing block 23 and is stored inside the movable cavity 12 under the elastic action of the coil spring 22. This makes the outer wall of the handle 1 flat, allowing it to be installed and connected to the driving tool like an existing rotary file, which is convenient for use. In addition, the magnetic ring 28 can be magnetically attracted to the driving tool, providing a further connection between the device and the driving tool, preventing the device from falling off and affecting the user experience.

[0035] The above description is merely a preferred embodiment of this utility model and is not intended to limit the utility model in any way. Those skilled in the art can readily implement this utility model based on the accompanying drawings and the above description. However, any modifications, alterations, or equivalent variations made by those skilled in the art without departing from the scope of the utility model's technical solution, utilizing the disclosed technical content, are considered equivalent embodiments of this utility model. Furthermore, any equivalent changes, alterations, or variations made to the above embodiments based on the essential technology of this utility model are still within the protection scope of this utility model's technical solution.

Claims

1. A multi-functional alloy rotary file handle rod comprising: The utility model provides a handle (1), the left end of handle (1) is provided with a file head (11); Its characterized in that: The surface of handle (1) is provided with a movable cavity (12), the inner wall of movable cavity (12) is provided with a guide groove (13); The inner side of movable cavity (12) is provided with a limiting structure (2), the limiting structure (2) includes a limiting tripod (21), the limiting tripod (21) is movably installed on the inner wall of movable cavity (12) through a rotating shaft, the connecting place of limiting tripod (21) and movable cavity (12) is provided with a coil spring (22), the inner side of movable cavity (12) movably installs a push block (23), the outer wall of push block (23) is provided with a guide block (24), the right side wall of push block (23) is provided with a threaded groove (25), the right end inside handle (1) movably installs a threaded rod (26) through bearing, the right end of threaded rod (26) is fixedly connected with a hand rotating block (27), the right end outer wall of handle (1) is fixedly installed with a magnetic ring (28).

2. A multi-functional alloy rotary file handle rod according to claim 1, characterized in that: The limiting tripod (21) is a hollow structure, the outer wall of limiting tripod (21) and magnetic ring (28) is flush with the outer wall of handle (1).

3. A multi-functional alloy rotary file handle rod according to claim 1, characterized in that: The coil spring (22) is sleeved on the outer side of rotating shaft, and both ends are connected with limiting tripod (21) and movable cavity (12), and the coil spring (22) is used for automatically storing limiting tripod (21) in movable cavity (12).

4. A multi-functional alloy rotary file handle rod according to claim 1, characterized in that: The limiting tripod (21) is provided with four groups, the push block (23) is located between the four groups of limiting tripods (21), and the push block (23) abuts against the limiting tripods (21).

5. A multi-functional alloy rotary file handle rod according to claim 1, characterized in that: The guide block (24) is slidably installed in the guide groove (13).

6. A multi-functional alloy rotary file handle rod according to claim 1, characterized in that: The left end of threaded rod (26) is located in the inside of movable cavity (12), and is threadedly connected with threaded groove (25), and the right wall of hand rotating block (27) is flush with the right wall of handle (1).

Citation Information

Patent Citations

  • Detachable rotary file

    CN212634537U