Multifunctional file
By designing an adjustable tool holder and blade system, the efficiency and cost problems caused by the fixed number of existing file teeth are solved, and the efficient use and wide adaptability of multifunctional files are achieved.
Patent Information
- Application Number
- CN202421567559.8
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-07-04
- Publication Date
- 2025-05-06
- Estimated Expiration
- 2034-07-04
AI Technical Summary
The number of teeth of existing files is fixed and cannot be adjusted according to processing needs, resulting in frequent replacement of files in processing tasks with different roughness requirements, which reduces work efficiency and increases tool costs.
A multi-function file is designed, using an adjustable tool holder and blade body system. Through the coordination of positioning grooves, positioning blocks and adjustment rods, the number of teeth of the blade body can be replaced and adjusted as needed to achieve multi-functional file operation.
The file can select the appropriate number of teeth mesh according to different processing needs, and complete the processing tasks required by a variety of roughness requirements. There is no need to replace files with different number of teeth mesh, which greatly improves work efficiency and reduces tool costs.
Smart Images

Figure CN222830836U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of files, in particular to a multifunctional file. Background Art
[0002] A file is a hand tool used to file the surface of a workpiece to form the desired shape and precision. It is made of carbon tool steel T12 or T13 after heat treatment and then the working part is ground. It is a tool with one or more teeth used to remove material from the workpiece.
[0003] Current files usually have a fixed number of teeth and cannot be adjusted according to processing requirements. This means that when performing processing tasks with different roughness requirements, files with different numbers of teeth need to be frequently replaced, which reduces work efficiency and cannot adapt to different work needs. There are certain limitations in use, and in order to adapt to different processing needs, staff need to purchase multiple different types of files, so the cost is relatively high. Utility Model Content
[0004] The purpose of the utility model is to provide a multifunctional file to solve the problems raised in the above background technology.
[0005] To achieve the above object, the utility model provides the following technical solution: a multifunctional file, comprising a mounting shell and a tool holder rotatably connected to the inside of the mounting shell, and also comprising:
[0006] A clamping groove is provided on multiple surfaces of the knife holder, a knife body is clamped inside the clamping groove, and one side of the knife body extends to the outside of the clamping groove, and a first handle is fixed on the right side of the mounting shell;
[0007] A second handle is arranged on the left side of the mounting shell, a fixing seat is fixed on the surface of the left side of the mounting shell, and a positioning groove is opened on the surface of the fixing seat, a positioning block is slidably connected inside the positioning groove, an adjusting rod is fixed on the left side of the tool holder, and a connecting sleeve is sleeved on the left side of the adjusting rod.
[0008] Preferably, the left end of the connecting sleeve penetrates into the interior of the positioning groove and is fixedly connected to the surface of the positioning block, and the adjusting rod is slidably connected to the inner wall of the connecting sleeve.
[0009] Preferably, the interior of the positioning groove is hexagonal, and the positioning block is slidably connected to the inner wall of the positioning groove, multiple surfaces of the positioning block are provided with numerical grooves, and the number of the blade on the surface of the tool holder corresponds to the numerical groove on the surface of the positioning block.
[0010] Preferably, limiting grooves are provided on both the front and rear sides of the inner wall of the connecting sleeve, and limiting blocks are fixed on one side of the front and rear sides of the adjusting rod, and one side of the limiting block extends into the interior of the limiting groove and is slidably connected to the inner wall of the limiting groove.
[0011] Preferably, magnetic blocks are embedded on both sides of the inner wall surface of the slot, and the magnetic blocks are used in conjunction with the blade body.
[0012] Preferably, discharge grooves are provided on both left and right sides of the inner wall of the slot, and the inner wall of the discharge groove is arranged in a semicircular arc shape.
[0013] Compared with the prior art, the beneficial effects of the utility model are as follows:
[0014] The utility model can select the appropriate number of teeth according to the processing needs of the staff. The file can complete a variety of processing tasks with different roughness requirements without the need to replace different files, thereby greatly improving work efficiency. Since it has an adjustment function, the file is suitable for a wider range of processing scenarios and materials. From rough surface treatment to fine finishing, all can be completed with the same file, reducing tool costs. BRIEF DESCRIPTION OF THE DRAWINGS
[0015] Figure 1 It is a three-dimensional structural schematic diagram of the utility model;
[0016] Figure 2 It is a cross-sectional view of the installation shell in the utility model;
[0017] Figure 3 It is a three-dimensional schematic diagram of the central tool holder of the utility model;
[0018] Figure 4 It is a three-dimensional schematic diagram of the second handle in the utility model;
[0019] Figure 5 It is a three-dimensional schematic diagram of the second handle of the utility model after it moves to the left;
[0020] Figure 6 It is a cross-sectional view of the connecting sleeve in the utility model.
[0021] In the figure: 1. mounting shell; 2. knife holder; 3. slot; 4. knife body; 5. first grip; 6. second grip; 7. fixing seat; 8. positioning slot; 9. positioning block; 10. adjusting rod; 11. connecting sleeve; 12. limiting slot; 13. limiting block; 14. magnetic block; 15. unloading chute. DETAILED DESCRIPTION
[0022] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.
[0023] See also Figure 1-6 As shown, a multifunctional file comprises a mounting shell 1, a tool holder 2 is arranged inside the mounting shell 1, and the right side of the tool holder 2 is rotatably connected to the inner wall of the mounting shell 1, the tool holder 2 is arranged in a hexagonal shape as a whole, and multiple surfaces of the tool holder 2 are provided with card slots 3, a blade 4 is card-engaged inside the card slot 3, and one side of the blade 4 extends to the outside of the card slot 3, a first grip 5 is fixed to the right side of the mounting shell 1, a second grip 6 is arranged on the left side of the mounting shell 1, a fixing seat 7 is fixed to the surface of the left side of the mounting shell 1, and a positioning groove 8 is arranged on the surface of the fixing seat 7, a positioning block 9 is slidably connected inside the positioning groove 8, an adjusting rod 10 is fixed to the left side of the tool holder 2, and a connecting sleeve 11 is sleeved on the left side of the adjusting rod 10.
[0024] The left end of the connecting sleeve 11 passes through the interior of the positioning groove 8 and is fixedly connected to the surface of the positioning block 9. The adjusting rod 10 is slidably connected to the inner wall of the connecting sleeve 11. The interior of the positioning groove 8 is hexagonal, and the positioning block 9 is slidably connected to the inner wall of the positioning groove 8. Multiple surfaces of the positioning block 9 are provided with digital grooves, and the number of the blade 4 on the surface of the tool holder 2 corresponds to the digital groove on the surface of the positioning block 9. When the staff pulls the second handle 6 to the left, the second handle 6 will drive the positioning block 9 to move out of the interior of the positioning groove 8. When the positioning block 9 is out of the interior of the positioning groove 8, the staff can rotate the second handle 6, so that the adjusting rod 10 drives the tool holder 2 inside the mounting shell 1 to rotate, and the staff can rotate the blade 4 to be used to the lower position according to their own work needs and the digital groove display on the surface of the positioning block 9.
[0025] Limiting grooves 12 are provided on the front and rear sides of the inner wall of the connecting sleeve 11, and limiting blocks 13 are fixed on one side of the front and rear sides of the adjusting rod 10. One side of the limiting block 13 extends to the inside of the limiting groove 12 and is slidably connected to the inner wall of the limiting groove 12. The connecting sleeve 11 is limited by the limiting block 13. When the staff pulls the connecting sleeve 11 to move, by turning the second handle 6, the connecting sleeve 11 can drive the adjusting rod 10 to start rotating, thereby switching the blade 4 on the opposite blade holder 2.
[0026] Magnetic blocks 14 are embedded on both sides of the inner wall surface of the slot 3, and the magnetic blocks 14 are used in conjunction with the blade body 4. When the blade body 4 is placed in the slot 3, the magnetic blocks 14 can adsorb and fix the blade body 4 to prevent the blade body 4 from moving when the staff uses the file.
[0027] Discharge grooves 15 are provided on both sides of the inner wall of the slot 3, and the inner wall of the discharge groove 15 is semicircular. When the blade 4 needs to be replaced, the staff can use tools and the discharge groove 15 to quickly pry the blade 4 out of the slot 3.
[0028] Working principle: When the staff needs to use the file, the staff will take out the file, hold the first handle 5 and the second handle 6 on both sides with both hands respectively, and then the surface of the workpiece can be filed. When files with different mesh sizes are needed, the staff only needs to pull the second handle 6 on the left, so that the positioning block 9 is moved out from the inside of the positioning groove 8. The staff can then turn the second handle 6 and rotate the blade 4 to be used downward according to the digital groove on the surface of the positioning block 9. Then the staff will push the positioning block 9 into the inside of the positioning groove 8 again, and then fix the tool holder 2. Then the staff can continue to file. When the blade 4 on the surface of the tool holder 2 is severely worn and needs to be replaced, the staff only needs to use a tool to reach into the corresponding unloading groove 15 to pry out the blade 4. Then the staff will insert the new blade 4 into the corresponding slot 3 again to complete the replacement operation of the blade 4.
[0029] Although the embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.
Claims
1. A multifunctional file, comprising a mounting shell (1) and a tool holder (2) rotatably connected to the mounting shell (1), characterized in that: Also includes: Slots (3) are provided on multiple surfaces of the knife holder (2), a knife body (4) is clamped inside the slot (3), and one side of the knife body (4) extends to the outside of the slot (3), and a first handle (5) is fixed on the right side of the mounting shell (1); A second handle (6) is arranged on the left side of the mounting shell (1); a fixing seat (7) is fixed on the surface of the left side of the mounting shell (1); a positioning groove (8) is provided on the surface of the fixing seat (7); a positioning block (9) is slidably connected inside the positioning groove (8); an adjusting rod (10) is fixed on the left side of the tool holder (2); and a connecting sleeve (11) is sleeved on the left side of the adjusting rod (10).
2. A multifunctional file according to claim 1, characterized in that: The left end of the connecting sleeve (11) penetrates into the interior of the positioning groove (8) and is fixedly connected to the surface of the positioning block (9), and the adjusting rod (10) is slidably connected to the inner wall of the connecting sleeve (11).
3. A multifunctional file according to claim 1, characterized in that: The interior of the positioning groove (8) is hexagonal, and the positioning block (9) is slidably connected to the inner wall of the positioning groove (8). Multiple surfaces of the positioning block (9) are provided with numerical grooves, and the mesh number of the blade (4) on the surface of the tool holder (2) corresponds to the numerical groove on the surface of the positioning block (9).
4. A multifunctional file according to claim 1, characterized in that: Limiting grooves (12) are provided on both the front and rear sides of the inner wall of the connecting sleeve (11), and limiting blocks (13) are fixed on both the front and rear sides of the adjusting rod (10), and one side of the limiting block (13) extends into the interior of the limiting groove (12) and is slidably connected to the inner wall of the limiting groove (12).
5. A multifunctional file according to claim 1, characterized in that: Magnetic blocks (14) are embedded on both sides of the inner wall surface of the clamping slot (3), and the magnetic blocks (14) are used in conjunction with the blade body (4).
6. A multifunctional file according to claim 1, characterized in that: Discharge grooves (15) are provided on both left and right sides of the inner wall of the clamping groove (3), and the inner wall of the discharge groove (15) is arranged in a semicircular arc shape.