Double-roller file

Abstract

The utility model provides a double-roller file. Comprising a file, a file support, a grip connecting column, a file fixing screw, a spring, a spring fixing screw, a penetrating shaft and a roller. The file support is connected with the head end of the file and used for containing the head end of the file. The file fixing screw is used for locking and fixing the file on the file bracket; the grip connecting column is arranged on the upper portion of the file support and used for being connected with the grip to form a grip point at the head end of the file, and the grip point and a grip point of a file handle at the tail end of the file jointly act on the file to form two-point grip. The idler wheel is arranged on the lower portion of the file support, and nylon double wheels are arranged on the idler wheel and used for forming a rolling supporting point at the head end of the file. The penetrating shaft is used for connecting the roller to the file bracket; the spring is arranged between the file support and the roller and used for adjusting the downward pressing angle of the file and the roller, and the spring and the roller are matched to adjust the movement track of the file. And the spring fixing screw is used for sleeving the spring. The file is suitable for being used as a file.

Description

Technical Field

[0001] This utility model relates to files in the field of machinery, and more particularly to a double roller file. Background Technology

[0002] Shipbuilding is a complex field involving the processing and assembly of pipes made of various materials. The construction process demands high quality from the pipe end faces, especially since shipbuilding commonly employs segmented pre-assembly and modular fabrication methods. Pipes frequently require cutting during construction, particularly when using tools such as horizontal band saws, toothed saws, and handheld electric grinders, resulting in burrs on the cut ends. These burrs often require manual grinding. Metal burrs are generally hard, and manual grinding requires applying pressure to remove them. Manual grinding offers considerable flexibility, and the operator's experience significantly impacts the overall grinding quality.

[0003] However, in the process of implementing the inventive technical solution in the embodiments of this application, the inventors of this application discovered that the above-mentioned technology has at least the following technical problems:

[0004] 1. Manually polishing the outer wall of pipes with a file can easily damage the pipe wall due to an unstable grip on the tool. This is especially true when polishing the side of the pipe; the lack of a reliable point of leverage often leads to misalignment between the pipe and the user, causing the file to slip and fall rapidly down the pipe wall. Polishing carbon steel pipes generally causes minimal damage and has a relatively small impact on overall quality. However, bright stainless steel pipes, copper-plated iron pipes, copper pipes, and nuclear-grade pipes are highly susceptible to damage. Once scratches, abrasions, or excessive polishing occur, the damage is generally irreversible and directly affects the pipe's quality.

[0005] 2. The outer wall of the pipe is arc-shaped. The file needs to move in a straight line to ensure the quality of the polishing. However, the file is not guided and is very easy to deviate during the working process. In order to ensure the quality of polishing, the pipe needs to be rotated frequently and the angle between the pipe and the person's standing position needs to be adjusted to ensure that the file moves in a straight line on the end face of the pipe. The overall polishing efficiency is low. Summary of the Invention

[0006] To address the shortcomings of existing technologies and the problem of stable file gripping and guiding of file linear motion, this application provides a double-roller file. This file utilizes double rollers to support the front end of the file, forming a rolling support point, enhancing file grip stability and guiding the file in linear motion. Simultaneously, a handle connecting post is screwed into the handle, forming a grip at the file's tip, which, together with the grip at the file's handle at the tail end, creates a two-point grip on the file, solving the technical problems of file loss of control and deviation.

[0007] The solution adopted by the embodiments of this application to solve the technical problem is:

[0008] A dual-roller file includes a file, a file holder, a handle connecting post, a file fixing screw, a spring, a spring fixing screw, a through shaft, and rollers;

[0009] The file is used for manual filing. The file holder is connected to the head of the file and is used to house it. The file retaining screw is used to lock the file to the file holder. The handle connecting post is located on the upper part of the file holder and is used to connect the handle, forming a grip point at the head of the file, which, together with the grip point at the handle at the tail end, creates a two-point grip on the file. The roller is located at the lower part of the file holder and has nylon double wheels, which form a rolling support point at the head of the file and guide its linear motion. The through shaft connects the roller to the file holder. The spring is located between the file holder and the roller and is used to adjust the downward angle of the file and the roller; the spring and roller work together to adjust the movement trajectory of the file. The spring retaining screw is used to mount the spring and fix one end to the file holder to adjust the spring force.

[0010] In order to further solve the technical problems to be solved by the embodiments of this application, the file holder provided by the embodiments of this application includes a file storage groove and a side plate;

[0011] The file storage slot is a hollow structure used to store and connect files. At the top of the slot are file screw holes and spring screw holes. A file fixing screw is screwed into the file screw hole and passes through it to lock and secure the file inserted into the slot. One spring screw hole is used to screw a spring fixing screw, which passes through the spring screw hole and houses the spring, assembling the spring between the file holder and the roller. The second spring screw hole is used for a limiting spring, controlling its position between the file holder and the roller. At the bottom of the slot is a base plate hole. One end of the spring passes through the base plate hole and contacts the spring screw hole of the file holder, while the other end contacts the top of the roller.

[0012] The side plates are symmetrically arranged at the bottom of the file storage slot, and the side plates have side plate holes for mounting the through-shaft rotating connecting rollers.

[0013] Furthermore, the spring screw hole is collinear with the center of the base plate hole, which facilitates the screwing of the spring fixing screw into the spring screw hole and the installation of the spring.

[0014] Furthermore, the grip connecting post sits on top of the file holder and has internal threads for attaching the grip.

[0015] Furthermore, the roller includes a roller bracket, nylon double wheels, and a boss;

[0016] The roller bracket has a U-shaped structure with a flat surface at the top to support the spring and transmit the spring's reaction force; nylon double wheels are assembled in the roller bracket to roll and support the file, and chamfers are provided on both sides of the roller bracket;

[0017] A boss is located at one end of the top of the roller bracket, and a through hole is provided on the boss for connecting the through shaft to support the rolling of the nylon double wheels.

[0018] Furthermore, the nylon dual wheels are made of nylon material.

[0019] Furthermore, the nylon double wheel is a double concave wheel.

[0020] Positive effects: The technical solutions provided in the embodiments of this application have at least the following technical effects or advantages:

[0021] 1. Because the embodiments of this application adopt the technical means of connecting one end of the file holder to the head end of the file and having a handle connecting post on the file holder, when the handle is installed on the handle connecting post, it forms two gripping points with the file handle at the tail end of the file, which effectively solves the technical problem of holding the file stably in the prior art. When horizontal thrust and vertical pressure are applied to the file, the two gripping points can control the force, thereby achieving the technical effect of enhancing the stability during filing and improving the quality of filing.

[0022] 2. Because the embodiments of this application adopt the technical means of connecting a roller to the lower end of the file holder and setting a double nylon wheel on the roller, the head end of the file has a rolling support point and can make linear motion, which effectively solves the technical problem of holding the file stably in the prior art. When the file is filing, it can have guidance and maintain the balance and stability of the file, thereby achieving the technical effect of improving the filing quality.

[0023] 3. Because the embodiments of this application use a technical means to connect the file holder and the roller through a through shaft and have a spring between them, the through shaft ensures that the file holder and the roller can rotate relative to each other. The spring can apply a rebound force in the opposite direction during the pressing of the file, which effectively solves the technical problem of holding the file stably and guiding the file to move in a stable linear motion in the prior art. By adjusting the tightness of the spring fixing screw, the extension and contraction of the spring can be adjusted to adjust the rebound force of the spring and adjust the overall pressing angle of the file, thereby achieving the technical effect of avoiding the file from locking up due to excessive pressing resistance.

[0024] 4. Because the embodiments of this application adopt the technical means of movably connecting the roller and the file holder through the through shaft, the file and the nylon double wheel can rotate around the through shaft. At the same time, the spring exerts an elastic reaction force on the file holder and the nylon double wheel, which effectively solves the technical problem of holding the file stably and guiding the file to move stably in a straight line in the prior art, thereby achieving the technical effect of enhancing filing stability and improving the filing quality of the file.

[0025] It is suitable for use as a double-roller file. Attached Figure Description

[0026] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0027] Figure 1 This is the northwest isometric view of this embodiment;

[0028] Figure 2 This is the southeast isometric view of this embodiment;

[0029] Figure 3 This is the front view of this embodiment;

[0030] Figure 4 This is a top view of this embodiment;

[0031] Figure 5 This is a top view of this embodiment;

[0032] Figure 6 This is the southeast isometric view of the file holder;

[0033] Figure 7 Northwest isometric view of the file holder;

[0034] Figure 8 This is the northeast isometric view of the roller;

[0035] Figure 9 This is the southwest isometric view of the roller.

[0036] In the picture:

[0037] 1. File;

[0038] 2. File holder,

[0039] 21. File storage slot

[0040] 211. File screw hole,

[0041] 212. Spring screw hole,

[0042] 213. Bottom plate hole,

[0043] 22. Side panels,

[0044] 221. Side plate hole;

[0045] 3. Handle connecting post;

[0046] 4. File the screws in place;

[0047] 5. Spring;

[0048] 6. Spring-loaded fixing screw;

[0049] 7. Through the shaft;

[0050] 8. Rollers,

[0051] 81. Roller bracket,

[0052] 82. Nylon double wheels,

[0053] 83. Boss,

[0054] 831. Through-shaft hole. Detailed Implementation

[0055] 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. Although embodiments of the present utility model have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and variations can be made to these embodiments without departing from the principles and spirit of the present utility model. The scope of the present utility model is defined by the appended claims and their equivalents. 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.

[0056] This application provides a double-roller file, which solves the problem of loss of control and deviation that easily occurs when using files in the prior art. The file uses nylon double wheels 82 to support the front end of the file 1 to form a rolling support point. At the same time, a handle connecting post 3 is provided on the file support 2 to connect the handle, forming a grip point at the head end of the file 1 and a grip point at the handle at the tail end of the file 1, thus forming a two-point grip and realizing the grip stability of the file 1 and guiding straight filing.

[0057] As shown in the figure, a double roller file includes a file 1, a file support 2, a handle connecting post 3, a file fixing screw 4, a spring 5, a spring fixing screw 6, a through shaft 7, and rollers 8.

[0058] File 1 is used for manual filing operations;

[0059] The file holder 2 is connected to the head end of the file 1 and is used to accommodate the head end of the file 1.

[0060] The file fixing screw 4 is used to lock and fix the file 1 to the file bracket 2;

[0061] The handle connecting post 3 is set on the upper part of the file bracket 2 to connect the handle and form the grip point at the head end of the file 1. Together with the grip point at the handle of the file 1 at the tail end, they work together on the file 1 to form a two-point grip, apply horizontal thrust and vertical pressure, maintain the force balance of the file 1, and carry out filing operations.

[0062] The roller 8 is located at the lower part of the file holder 2. A double nylon wheel 82 is provided on the roller 8 to form a rolling support point at the tip of the file 1 and guide the linear motion. This allows the file 1 to be held stably for filing, thereby avoiding damage to the workpiece to be filed and improving the quality of filing.

[0063] The through shaft 7 is used to connect the roller 8 to the file holder 2;

[0064] Spring 5 is set between file holder 2 and roller 8 to adjust the downward pressing angle of file 1 and roller 8. Spring 5 and roller 8 work together to adjust the movement trajectory of file 1.

[0065] The spring retaining screw 6 is used to mount the spring 5 and fix one end of it in the file holder 2 to adjust the elasticity of the spring 5.

[0066] The technical solutions described in the embodiments of this application above have at least the following technical effects or advantages:

[0067] Since one end of the file holder 2 is connected to the head end of the file 1, and the file holder 2 has a handle connecting post 3, when the handle connecting post 3 is fitted with a handle, it forms two gripping points with the handle of the file 1 at the tail end. Horizontal thrust and vertical pressure are applied to the file 1. The two gripping points can control the force, enhance the stability during filing, and improve the filing quality of the file 1.

[0068] Because a roller 8 is connected to the lower end of the file holder 2, and a double nylon wheel 82 is provided on the roller 8, the head end of the file 1 has a rolling support point and can move in a straight line. When the file 1 is filing, it can be guided, maintain the balance and stability of the file 1, and improve the quality of filing.

[0069] Since the file holder 2 and the roller 8 are connected by the through shaft 7 and there is a spring 5 between them, the through shaft 7 ensures that the file holder 2 and the roller 8 can rotate relative to each other. The spring 5 can apply a rebound force in the opposite direction during the pressing of the file 1. By adjusting the tightness of the spring fixing screw 6, the extension and contraction of the spring 5 can be adjusted, thereby adjusting the rebound force of the spring 5 and adjusting the overall pressing angle of the file 1. This avoids the phenomenon of the file 1 locking up due to excessive resistance between the file and the workpiece when the workpiece is hard.

[0070] To ensure the stability of the structure in this embodiment, the file holder 2 includes a file storage groove 21 and a side plate 22;

[0071] The file storage slot 21 is a hollow structure used to store and connect the file 1. A file screw hole 211 and a spring screw hole 212 are provided at the top of the file storage slot 21. The file fixing screw 4 is screwed into the file screw hole 211 and passes through the file screw hole 211 to lock and fix the file 1 inserted into the file storage slot 21. One of the spring screw holes 212 is used to screw a spring fixing screw 6. The spring fixing screw 6 passes through the spring screw hole 212 and mounts a spring 5, assembling the spring 5 between the file bracket 2 and the roller 8. The screw hole 212 is used to limit the spring 5, controlling it between the file holder 2 and the roller 8; a bottom plate hole 213 is provided at the bottom of the file storage groove 21, one end of the spring 5 passes through the bottom plate hole 213 and contacts the spring screw hole 212 of the file holder 2, and the other end contacts the top of the roller 8; the depth of the spring fixing screw 6 into the spring screw hole 212 can be adjusted by a screw. By adjusting the depth of the spring fixing screw 6, the elastic rebound stroke of the spring 5 can be achieved, thereby adjusting the downward pressing angle of the file 1;

[0072] Side plates 22 are symmetrically arranged at the bottom of file storage groove 21. Side plate holes 221 are provided on side plates 22 for mounting the through shaft 7 to rotate and connect the roller 8.

[0073] To further ensure the stability of the structure in this example, the spring screw hole 212 and the base plate hole 213 are aligned, which makes it easier for the spring fixing screw 6 to be screwed into the spring screw hole 212 and the spring 5 to be fitted, thus preventing the spring 5 from being eccentrically twisted.

[0074] To optimize the structure of this embodiment, the grip connecting post 3 is located on top of the file holder 2 and has internal threads for connecting the grip.

[0075] To further optimize the structure of this embodiment, the roller 8 includes a roller bracket 81, a nylon double wheel 82, and a boss 83;

[0076] The roller bracket 81 has a U-shaped structure, and its top has a flat surface that supports the spring 5, which is used to transmit the reaction force of the spring 5 and ensure that the roller 8 and the file bracket 2 have elastic movement.

[0077] The nylon double wheel 82 is assembled in the roller bracket 81 for rolling support of the file 1. Chamfers are provided on both sides of the roller bracket 81 to avoid interference between the roller bracket 81 and the workpiece, and to avoid sharp corners damaging the workpiece by rounding.

[0078] A boss 83 is located at one end of the top of the roller bracket 81. A through-shaft hole 831 is provided on the boss 83 for connecting the through-shaft 7. The through-shaft 7 passes through the side plate hole 221 and the through-shaft hole 831 on the side plate 22, suspending the nylon double wheel 82 on the roller bracket 81. The roller 8 is rotatably connected to the file bracket 2, supporting the nylon double wheel 82 to roll. One end of the through-shaft 7 is stuck on the outer side of the side plate 22 and extends through the through-shaft hole 831 of the boss 83. The other end is locked by a nut to restrict the radial movement of the through-shaft 7. The file bracket 2 and the nylon double wheel 82 can rotate axially around the through-shaft 7.

[0079] As a standard technical choice, the Nylon Dual Wheel 82 is made of nylon material, which has a suitable hardness and softness. Nylon has a certain degree of hardness to prevent work debris from getting into the wheel and scratching the workpiece. At the same time, nylon is a non-metallic material, which prevents the workpiece from being scratched during long-term rolling operation.

[0080] To further optimize the structure of this embodiment, the nylon double wheel 82 is a double concave wheel. The double concave wheel design has better guidance. The double concave wheel can be locked on the outer wall of the tube, which better ensures that the file 1 moves in a straight line when working.

[0081] The technical solutions described in the embodiments of this application above have at least the following technical effects or advantages:

[0082] Since the roller 8 is movably connected to the file holder 2 by the through shaft 7, the file 1 and the nylon double wheel 82 can rotate around the through shaft 7. At the same time, the spring 5 exerts an elastic reaction force on the file holder 2 and the nylon double wheel 82, so that the entire file 1 has freedom and elastic rebound force during the working pressing process, avoiding the phenomenon of the file 1 locking up due to excessive pressing resistance.

[0083] It is worth noting that all contents not described in detail in the specification are existing technologies known to those skilled in the art, and the model parameters of file fixing screw 4, spring 5, spring fixing screw 6 and nylon double wheel 82 are not specifically limited and can be determined using conventional equipment. Electrical control components not mentioned in this technical solution are not shown in the figure because they are existing technologies, and will not be described here.

[0084] Finally, it should be noted that the above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Although the present utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

Claims

1. A double-roller file, characterized in that: include: A file (1) is used for manual filing operations; File holder (2), the file holder (2) is connected to the head end of the file (1) and is used to accommodate the head end of the file (1); File fixing screw (4), the file fixing screw (4) is used to lock and fix the file (1) to the file bracket (2). The handle connecting post (3) is set on the upper part of the file bracket (2) to connect the handle and form the grip point at the head end of the file (1). Together with the grip point at the tail end of the file (1) handle, they act on the file (1) to form a two-point grip. Roller (8); The roller (8) is located at the lower part of the file support (2), and a nylon double wheel (82) is provided on the roller (8) to form a rolling support point at the head end of the file (1) and guide the linear motion; A through shaft (7) is used to connect the roller (8) to the file holder (2); A spring (5) is disposed between the file holder (2) and the roller (8) to adjust the downward pressing angle between the file (1) and the roller (8). The spring (5) and the roller (8) cooperate to adjust the movement trajectory of the file (1). A spring fixing screw (6) is used to mount the spring (5) and fix one end of it in the file bracket (2) to adjust the elastic force of the spring (5).

2. A double-roller file according to claim 1, characterized in that: The file holder (2) includes: A file storage slot (21) is a hollow structure used to store and connect the file (1). A file screw hole (211) and a spring screw hole (212) are provided at the top of the file storage slot (21). The file fixing screw (4) is screwed into the file screw hole (211) and passes through the file screw hole (211) to lock and fix the file (1) inserted into the file storage slot (21). One of the spring screw holes (212) is used to screw the spring fixing screw (6), which passes through the file screw hole (212). The spring screw hole (212) is used to fit the spring (5), and the spring (5) is assembled between the file holder (2) and the roller (8); the spring screw hole (212) is also used to limit the spring (5), controlling it between the file holder (2) and the roller (8); a bottom plate hole (213) is provided at the bottom of the file storage groove (21), one end of the spring (5) passes through the bottom plate hole (213) and contacts the spring screw hole (212) of the file holder (2), and the other end contacts the top of the roller (8); and Side plate (22), the side plate (22) is symmetrically arranged at the bottom of the file storage groove (21), and the side plate (22) is provided with side plate hole (221) for mounting the through shaft (7) to rotatably connect the roller (8).

3. A double-roller file according to claim 2, characterized in that: The spring screw hole (212) is collinear with the center of the base plate hole (213), which makes it easy for the spring fixing screw (6) to be screwed into the spring screw hole (212) and fitted with the spring (5).

4. A double-roller file according to claim 1, characterized in that: The grip connecting post (3) is located on top of the file holder (2) and has internal threads for connecting the grip.

5. A double-roller file according to claim 1, characterized in that: The roller (8) includes: Roller bracket (81), the roller bracket (81) is a U-shaped structure, and its top has a plane that supports the spring (5) for transmitting the reaction force of the spring (5); A nylon double wheel (82), the nylon double wheel (82) being assembled in the roller bracket (81) for rolling support of the file (1), the roller bracket (81) having chamfers on both sides; and A boss (83) is provided at one end of the top of the roller bracket (81). A through hole (831) is provided on the boss (83) for connecting the through shaft (7) and supporting the nylon double wheel (82) to roll.

6. A double-roller file according to claim 5, characterized in that: The nylon double wheel (82) is made of nylon.

7. A double-roller file according to claim 5, characterized in that: The nylon double wheel (82) is a double concave wheel.

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