Arc-shaped abrasive paper frame

Abstract

The utility model discloses an arc-shaped abrasive paper frame, which relates to the technical field of abrasive paper frames, and comprises an arc-shaped support, a grab handle, a fixed clamping piece and a movable clamping piece, and the front side of the arc-shaped support is an arc-shaped opening; the grab handle is detachably and fixedly connected to the middle of the back side of the arc-shaped support. The fixed clamping piece is detachably and fixedly connected to the back side of the first end of the arc-shaped support and used for clamping and fixing one end of abrasive paper. The movable clamping piece is used for being connected to the back side of the second end of the arc-shaped support in a sliding mode and can keep the position after sliding, the movable clamping piece is used for clamping the other end, bypassing the front side of the arc-shaped support, of the abrasive paper, the structure is simple, the application range is wide, and use is flexible.

Description

Technical Field

[0001] The utility model relates to the technical field of sandpaper holders, in particular to an arc-shaped sandpaper holder. Background Art

[0002] At present, during the process of mechanical processing, assembly, maintenance and repair, sandpaper is used to further process the surfaces of metals and other materials to meet the requirements of assembly accuracy or surface roughness. Existing power tools are mostly used for flat surface finishing. Among the few tools that can finish arc surfaces, there is no manual tool for arc surfaces. Although power tools have a fast grinding speed, they are not convenient to use in some occasions that require delicate finishing and in places without power. Moreover, it is very difficult for power tools to control the size of the grinding contact surface and the force. Content of the Utility Model

[0003] The purpose of the utility model is to provide an arc-shaped sandpaper holder to solve the problems existing in the above-mentioned prior art, with a simple structure, a wide range of applications and flexible use.

[0004] To achieve the above purpose, the utility model provides the following scheme:

[0005] The utility model provides an arc-shaped sandpaper holder, including: an arc-shaped bracket, a handle, a fixed clamping member and a movable clamping member. The front side of the arc-shaped bracket is an arc-shaped opening; the handle is detachably and fixedly connected to the middle of the back side of the arc-shaped bracket; the fixed clamping member is detachably and fixedly connected to the back side of the first end of the arc-shaped bracket, and the fixed clamping member is used for clamping and fixing one end of the sandpaper; the movable clamping member is used for slidably connecting to the back side of the second end of the arc-shaped bracket and can maintain the position after sliding, and the movable clamping member is used for clamping the other end of the sandpaper that bypasses from the front side of the arc-shaped bracket.

[0006] Preferably, the fixed clamping member includes a first pressing block and a first bolt. A first through hole is provided on the first pressing block. A first opening groove is provided on the back side of the first end of the arc-shaped bracket. A first threaded hole is provided on the first opening groove. The first pressing block is used for pressing one end of the sandpaper into the first opening groove, and the first bolt is used for passing through the first through hole and being threadedly connected to the first threaded hole.

[0007] Preferably, the first end of the arc-shaped bracket is a round end face.

[0008] Preferably, the movable clamping member includes a second pressing block, a second bolt and a sliding plate. A second through hole is provided on the second pressing block, and a second opening groove is provided on the sliding plate. A first sliding groove is provided on the back side of the second end of the arc-shaped bracket. The sliding plate is slidably connected to the first sliding groove and can maintain the position after sliding. The second pressing block is used to press the other end of the sandpaper into the second opening groove, and the second bolt is used to pass through the second through hole and fixedly connect with the sliding plate.

[0009] Preferably, it further includes a slider. A second sliding groove is provided at the bottom of the first sliding groove. The slider is fitted and fixed in the second sliding groove and can slide along the second sliding groove and maintain the position after sliding. A second threaded hole is provided on the slider, and a third through hole is provided on the sliding plate. The second bolt is used to pass through the second through hole, the third through hole and threadedly connect with the second threaded hole.

[0010] Preferably, it further includes a cylinder. An arc-shaped end face is provided at the second end of the arc-shaped bracket. The cylinder can be detachably fixedly connected to the arc-shaped end face to close one end of the second sliding groove.

[0011] Preferably, it further includes a third bolt and a fourth bolt. A fourth through hole and a fifth through hole are provided on the cylinder. A third threaded hole and a fourth threaded hole are provided on the arc-shaped end face. The third bolt is used to pass through the fourth through hole and threadedly connect with the third threaded hole. The fourth bolt is used to pass through the fifth through hole and threadedly connect with the fourth threaded hole.

[0012] Preferably, it further includes a fifth bolt and a sixth bolt. A sixth through hole and a seventh through hole are provided on the handle. Fifth threaded holes and sixth threaded holes are respectively provided at both ends of the handle. The fifth bolt is used to pass through the sixth through hole and threadedly connect with the fifth threaded hole. The sixth bolt is used to pass through the seventh through hole and threadedly connect with the sixth threaded hole.

[0013] The utility model has achieved the following technical effects compared with the prior art:

[0014] The utility model provides an arc-shaped sandpaper holder, which fixes both ends of the sandpaper through a movable clamping member and a fixed clamping member, and can adjust the tension degree of the sandpaper through the movable clamping member, so as to adjust the contact surface between the sandpaper and the workpiece. The structure is simple, the application range is wide, and the use is flexible. Description of the Drawings

[0015] To more clearly illustrate the technical solutions in the embodiments of the present invention or the prior art, the following will briefly introduce the drawings required for use in the embodiments. Obviously, the drawings described below are only some embodiments of the present invention. For those of ordinary skill in the art, without creative efforts, other drawings can also be obtained based on these drawings.

[0016] Figure 1 Schematic diagram of the mechanism of the arc-shaped sandpaper holder provided by the present invention;

[0017] Figure 2 Schematic diagram of the mechanism of the arc-shaped sandpaper holder in the upward view direction provided by the present invention;

[0018] Figure 3 Exploded view of the arc-shaped sandpaper holder provided by the present invention;

[0019] Figure 4 Schematic diagram of the structure at the fixed clamping member in the arc-shaped sandpaper holder provided by the present invention;

[0020] In the figure: 1. Arc-shaped bracket; 101. First threaded hole; 102. Sixth through hole; 103. Circular end face; 104. First opening groove; 105. Arc end face; 106. Third threaded hole; 107. Second sliding groove; 108. Seventh through hole; 2. Cylinder; 201. Fourth through hole; 202. Fifth bolt; 3. Slide plate; 301. Slide block; 302. Second threaded hole; 303. Second pressing block; 304. Second bolt; 4. Handle; 401. Fifth threaded hole; 5. First pressing block; 501. First bolt; 502. First through hole; 6. Fixed clamping member; 7. Movable clamping member. Detailed implementation manners

[0021] The following will clearly and completely describe the technical solutions in the embodiments of the present invention with reference to the drawings in the embodiments of the present invention. Obviously, the described embodiments are only some embodiments of the present invention, rather than all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative efforts belong to the scope of protection of the present invention.

[0022] The purpose of the present invention is to provide an arc-shaped sandpaper holder to solve the problems existing in the above-mentioned prior art, with a simple structure, wide application range, and flexible use.

[0023] To make the above objects, features, and advantages of the present invention more obvious and understandable, the present invention will be further described in detail below with reference to the drawings and specific implementation manners.

[0024] The present invention provides an arc-shaped sandpaper holder, as Figures 1 to 4As shown in the figure, it includes: an arc-shaped bracket 1, a handle 4, a fixed clamping member 6 and a movable clamping member 7. The front side of the arc-shaped bracket 1 is an arc-shaped opening; the handle 4 is detachably and fixedly connected to the middle of the back side of the arc-shaped bracket 1; the fixed clamping member 6 is detachably and fixedly connected to the back side of the first end of the arc-shaped bracket 1, and the fixed clamping member 6 is used to clamp and fix one end of the sandpaper; the movable clamping member 7 is used to slidably connect to the back side of the second end of the arc-shaped bracket 1 and can maintain the position after sliding. The movable clamping member 7 is used to clamp the other end of the sandpaper that bypasses from the front side of the arc-shaped bracket 1. The two ends of the sandpaper are fixed by the movable clamping member 7 and the fixed clamping member 6, and the tension degree of the sandpaper can be adjusted by the movable clamping member 7, so as to adjust the contact surface between the sandpaper and the workpiece. The structure is simple, the application range is wide, and the use is flexible.

[0025] In a preferred embodiment, the fixed clamping member 6 includes a first pressing block 5 and a first bolt 501. A first through hole 502 is provided on the first pressing block 5, a first opening groove 104 is provided on the back side of the first end of the arc-shaped bracket 1, and a first threaded hole 101 is provided on the first opening groove 104. The first pressing block 5 is used to press one end of the sandpaper into the first opening groove 104, and the first bolt 501 is used to pass through the first through hole 502 and be threadedly connected to the first threaded hole 101. The structure is simple and it is convenient to press one end of the sandpaper.

[0026] In a preferred embodiment, the first end of the arc-shaped bracket 1 is a round end face 103, and the round end face 103 can reduce the stress concentration of the sandpaper.

[0027] In a preferred embodiment, the movable clamping member 7 includes a second pressing block 303, a second bolt 304 and a sliding plate 3. A second through hole is provided on the second pressing block 303, a second opening groove is provided on the sliding plate 3, a first sliding groove is provided on the back side of the second end of the arc-shaped bracket 1, and the sliding plate 3 is slidably connected to the first sliding groove and can maintain the position after sliding. The second pressing block 303 is used to press the other end of the sandpaper into the second opening groove, and the second bolt 304 is used to pass through the second through hole and be fixedly connected to the sliding plate 3. The structure is simple and it is convenient to fix the end of the sandpaper.

[0028] In a preferred embodiment, the arc-shaped sandpaper holder further includes a slider 301. A second sliding groove 107 is provided at the bottom of the first sliding groove. The slider 301 is fixedly fitted in the second sliding groove 107 and can slide along the second sliding groove 107 and maintain the position after sliding. A second threaded hole 302 is provided on the slider 301, a third through hole is provided on the sliding plate 3, and the second bolt 304 is used to pass through the second through hole, the third through hole and be threadedly connected to the second threaded hole 302. The structure is simple, easy to use, and convenient to adjust the position of the slider 301, so as to conveniently adjust the tension degree of the sandpaper.

[0029] In a preferred embodiment, the arc-shaped sandpaper holder further includes a cylinder 2. The second end of the arc-shaped bracket 1 is provided with an arc end face 105. The cylinder 2 can be detachably and fixedly connected to the arc end face 105 to close one end of the second chute 107. The cylinder 2 can reduce the stress concentration of the sandpaper.

[0030] In a preferred embodiment, the arc-shaped sandpaper holder further includes a third bolt and a fourth bolt. The cylinder 2 is provided with a fourth through hole 201 and a fifth through hole. The arc end face 105 is provided with a third threaded hole 106 and a fourth threaded hole. The third bolt is used to pass through the fourth through hole 201 and be threadedly connected to the third threaded hole 106. The fourth bolt is used to pass through the fifth through hole and be threadedly connected to the fourth threaded hole. The structure is simple and convenient for disassembly and maintenance. Moreover, the third threaded hole 106 and the fourth threaded hole are counterbores, which can make the nuts of the third bolt and the fourth bolt sink into the fourth through hole and the fifth through hole.

[0031] In a preferred embodiment, the arc-shaped sandpaper holder further includes a fifth bolt 202 and a sixth bolt. The handle 4 is provided with a sixth through hole 102 and a seventh through hole 108. The two ends of the handle 4 are respectively provided with a fifth threaded hole 401 and a sixth threaded hole. The fifth bolt 202 is used to pass through the sixth through hole 102 and be threadedly connected to the fifth threaded hole 401. The sixth bolt is used to pass through the seventh through hole 108 and be threadedly connected to the sixth threaded hole. The structure is simple and the connection is convenient. The sixth through hole 102 and the seventh through hole 108 are counterbores.

[0032] Specific examples are used in the present utility model to expound the principle and implementation manner of the present utility model. The description of the above embodiments is only used to help understand the method and its core idea of the present utility model; at the same time, for those of ordinary skill in the art, according to the idea of the present utility model, there will be changes in the specific implementation manner and application scope. In summary, the content of this specification should not be construed as a limitation to the present utility model.

Claims

1. An arc-shaped sandpaper holder, characterized in that: Comprising: An arc-shaped bracket, the front side of the arc-shaped bracket being an arc-shaped opening; A handle, the handle being detachably and fixedly connected to the middle of the back side of the arc-shaped bracket; A fixed clamping member, the fixed clamping member being detachably and fixedly connected to the back side of the first end of the arc-shaped bracket, the fixed clamping member being used for clamping and fixing one end of a sandpaper; and A movable clamping member, the movable clamping member being used for slidably connecting to the back side of the second end of the arc-shaped bracket and being able to maintain the position after sliding, the movable clamping member being used for clamping the other end of the sandpaper that bypasses from the front side of the arc-shaped bracket.

2. The arc-shaped sandpaper holder according to claim 1, characterized in that: The fixed clamping member includes a first pressing block and a first bolt. A first through hole is provided on the first pressing block. A first opening groove is provided on the back side of the first end of the arc-shaped bracket. A first threaded hole is provided on the first opening groove. The first pressing block is used for pressing one end of the sandpaper into the first opening groove, and the first bolt is used for passing through the first through hole and being threadedly connected to the first threaded hole.

3. The arc-shaped sandpaper holder according to claim 2, characterized in that: The first end of the arc-shaped bracket is a circular end face.

4. The arc-shaped sandpaper holder according to claim 3, characterized in that: The movable clamping member includes a second pressing block, a second bolt and a sliding plate. A second through hole is provided on the second pressing block. A second opening groove is provided on the sliding plate. A first sliding groove is provided on the back side of the second end of the arc-shaped bracket. The sliding plate is slidably connected to the first sliding groove and can maintain the position after sliding. The second pressing block is used for pressing the other end of the sandpaper into the second opening groove, and the second bolt is used for passing through the second through hole and being fixedly connected to the sliding plate.

5. The arc-shaped sandpaper holder according to claim 4, characterized in that: It further includes a slider. A second sliding groove is provided at the bottom of the first sliding groove. The slider is fitted and fixed in the second sliding groove and can slide along the second sliding groove and maintain the position after sliding. A second threaded hole is provided on the slider. A third through hole is provided on the sliding plate. The second bolt is used for passing through the second through hole, the third through hole and being threadedly connected to the second threaded hole.

6. The arc-shaped sandpaper holder according to claim 5, characterized in that: It further includes a cylinder. An arc-shaped end face is provided at the second end of the arc-shaped bracket. The cylinder is detachably and fixedly connected to the arc-shaped end face to close one end of the second sliding groove.

7. The arc-shaped sandpaper holder according to claim 6, characterized in that: It further includes a third bolt and a fourth bolt. A fourth through hole and a fifth through hole are provided on the cylinder. A third threaded hole and a fourth threaded hole are provided on the arc-shaped end face. The third bolt is used for passing through the fourth through hole and being threadedly connected to the third threaded hole. The fourth bolt is used for passing through the fifth through hole and being threadedly connected to the fourth threaded hole.

8. The arc-shaped sandpaper holder according to claim 7, wherein: It further includes a fifth bolt and a sixth bolt. A sixth through hole and a seventh through hole are provided on the handle. A fifth threaded hole and a sixth threaded hole are respectively provided at both ends of the handle. The fifth bolt is used for passing through the sixth through hole and being threadedly connected to the fifth threaded hole. The sixth bolt is used for passing through the seventh through hole and being threadedly connected to the sixth threaded hole.

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