Novel sander base fixing device

Abstract

The utility model relates to the technical field of sanders, in particular to a novel sander base fixing device which comprises a bottom plate, a connecting portion used for being connected with a sander body is arranged on the bottom plate, and top plate loading grooves used for containing a first top plate and a second top plate are axially formed in the two ends of the bottom plate respectively. Two radial windows communicating with the top plate loading groove are oppositely formed in the bottom plate in a penetrating mode in the radial direction, positioning holes used for being matched with positioning supporting columns on the sanding machine body are formed in the side face of the bottom plate, the positioning holes communicate with the top plate loading groove, and a thrust spring is arranged in the top plate loading groove. And the first top plate is pushed to be in butt joint with the second top plate, so that the sanding paper is clamped and pushed into the top plate loading groove at the same time. According to the utility model, the abrasive paper is clamped, embedded into the top plate loading groove and folded for multiple times, so that the contact area between the sanding paper and the first top plate is greatly increased, the abrasive paper is firmly mounted, wrinkles are not easy to generate during mounting, and deviation is not easy to generate during mounting.

Description

TECHNICAL FIELD

[0001] The utility model relates to a sander technical field especially relates to a novel sander base fixing device. BACKGROUND

[0002] The handheld sander is through installing the sandpaper on the base device and then sanding, and the following problems exist after installation: first, the installation is not firm, if the sandpaper is not pasted or clamped correctly, the sandpaper can be loose, displaced or even dropped in the high-speed operation process of the sander, which not only affects the sanding effect, but also can cause the sandpaper to fly out when the machine is running, causing a safety hazard. Second, the sandpaper installation position deviation, without accurate alignment of the installation position, will make the sander work unevenly, on the one hand, the sandpaper is easy to be damaged, on the other hand, it will also lead to uneven polishing of the surface of the object being sanded. Third, wrinkles are generated during installation, if the sandpaper is accidentally wrinkled during the installation process, these wrinkles will be over-polished during use, causing the surface quality of the workpiece to decrease. SUMMARY

[0003] The utility model aims at solving the above-mentioned defects, and provides a novel sander base fixing device.

[0004] In order to overcome the defects in the background art, the utility model solves the technical problems by adopting the following technical scheme: a novel sander base fixing device, including the bottom plate, the bottom plate is provided with a connecting part for connecting with the sander body, the bottom plate is axially provided with a top plate loading slot for accommodating the first top plate and the second top plate at both ends, two radial windows are radially and oppositely provided on the bottom plate and are in communication with the top plate loading slot, a positioning hole is formed on the side surface of the bottom plate and is matched with the positioning support column on the sander body, the positioning hole is in communication with the top plate loading slot, a thrust spring is arranged in the top plate loading slot, one end of the thrust spring is connected with the second top plate, and the other end is connected with the bottom wall in the top plate loading slot, a plug-in hole is formed on the first top plate and coincides with the positioning hole, and the first top plate and the second top plate are abutted to clamp and push the sanding paper into the top plate loading slot at the same time.

[0005] Further improvement, including the convex surface formed on the abutting surface of the first top plate and the concave surface formed on the abutting surface of the second top plate are matched.

[0006] Further improvement, including the first top plate is provided with a rough surface.

[0007] The utility model has the advantages that: the sandpaper is clamped and then embedded in the top plate loading slot after being folded for many times, which greatly increases the contact area of the sandpaper and the first top plate, the sandpaper is firmly installed and wrinkles are not easy to be generated during installation, and installation deviation is not easy to occur. BRIEF DESCRIPTION OF DRAWINGS

[0008] The utility model is further illustrated below in combination with the drawings and embodiments.

[0009] Figure 1 It is a top view of the utility model;

[0010] Figure 2 It is a right view of the utility model;

[0011] Figure 3 It is Figure 1 The sectional view of D-D;

[0012] In the drawing, 1 is a bottom plate, 2 is a connecting part, 3 is a first top plate, 4 is a positioning hole, 5 is a radial window, 6 is a top plate loading groove, 7 is a plug-in hole, 8 is a thrust spring, and 9 is a second top plate. DETAILED DESCRIPTION

[0013] To make the purpose, technical scheme and advantages of the embodiments of the utility model clearer, the technical scheme in the embodiments of the utility model will be described clearly and completely below in combination with the drawings in the embodiments of the utility model. Obviously, the described embodiments are part of the embodiments of the utility model, rather than all the embodiments. All other embodiments obtained by the person skilled in the art without creative labor belong to the scope of protection of the utility model.

[0014] According to Figure 1 , Figure 2 and Figure 3 , a novel sander base fixing device comprises a bottom plate 1, the bottom plate 1 is provided with a connecting part 2 for connecting with a sander body, top plate loading grooves 6 for accommodating a first top plate 3 and a second top plate 9 are axially arranged at both ends of the bottom plate 1, two radial windows 5 are arranged on the bottom plate 1 and communicate with the top plate loading grooves 6, thereby the two ends of sandpaper can be respectively passed out of the radial windows 5, positioning holes 4 are arranged on the side surface of the bottom plate 1 and are matched with positioning support columns on the sander body, the positioning holes 4 communicate with the top plate loading grooves 6, a thrust spring 8 is arranged in the top plate loading groove 6, one end of the thrust spring 8 is connected with the second top plate 9 and the other end is connected with the inner bottom wall of the top plate loading groove 6, a plug-in hole 7 is arranged on the first top plate 3 and coincides with the positioning hole 4, the first top plate 3 and the second top plate 9 are pushed to abut and clamp the sandpaper and push the sandpaper into the top plate loading groove 6 at the same time, the positioning support columns on the sander body are inserted into the positioning holes 4 and the plug-in holes 7, and the positioning support columns also limit the first top plate 3, and the thrust spring 8 increases the clamping force of the sandpaper.

[0015] In the embodiment, the convex surface formed on the interfacing surface of the first top plate 3 matches the concave surface formed on the interfacing surface of the second top plate 9, thereby increasing the contact surface and ensuring that the sandpaper is clamped and avoids loosening during work.

[0016] In the embodiment, a rough layer is arranged on the surface of the first top plate 3 to increase the friction between the sandpaper and the first top plate 3 and further avoid loosening of the sandpaper during work.

[0017] Working principle: first, the sandpaper is inserted into the radial window 5 and out of the sandpaper, the two ends are pulled tight, at this time, the sandpaper is pushed to compress the push spring 8 in order to keep the tight state, then the first top plate 3 is pushed to abut against the second top plate 9, at this time, the first top plate 3 and the second top plate 9 clamp the sandpaper, and then the sandpaper is inserted into the top plate loading slot 6, when the plug-in hole 7 on the first top plate 3 coincides with the positioning hole 4, the positioning support column on the sanding machine body is inserted into the plug-in hole 7 for limiting, thereby completing the assembly of the sanding paper.

[0018] The above is only the preferred embodiment of the present application, but the protection scope of the present application is not limited to this, any skilled person in the art can make equivalent replacement or change according to the technical scheme and the inventive concept of the present application within the technical range disclosed by the present application, which should be covered in the protection scope of the present application.

Claims

1. A novel sander base fixing device, characterized in that, The utility model relates to a sanding machine paper clamping device, including bottom plate (1), be equipped with the connecting portion (2) for with sanding machine body connection on bottom plate (1), the top plate loading slot (6) for accommodating first top plate (3) with second top plate (9) is respectively opened axially in bottom plate (1) both ends, two radial windows (5) are opened in bottom plate (1) relative radial through -going and communicate with top plate loading slot (6), the positioning hole (4) for matching with the positioning support column on sanding machine body is opened in bottom plate (1) side, the positioning hole (4) is communicated with top plate loading slot (6), the thrust spring (8) is configured in top plate loading slot (6), one end of thrust spring (8) is connected with second top plate (9), the other end is connected with the inner bottom wall of top plate loading slot (6), the first top plate (3) is opened with the plug -in hole (7) of coinciding with positioning hole (4), push the first top plate (3) and second top plate (9) butt joint to press into top plate loading slot (6) in -turn with sanding paper clamping when pushing and entering.

2. A novel sander base fixing device as claimed in claim 1, characterized in that: The convex surface formed on the butt joint surface of the first top plate (3) matches the concave surface formed on the butt joint surface of the second top plate (9).

3. A novel sander base fixing device as claimed in claim 1, characterized in that: A rough layer is arranged on the surface of the first top plate (3).

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