Abrasive paper polisher convenient to clamp

Abstract

The abrasive paper polisher convenient to clamp comprises a bottom plate, elastic clamping pieces are arranged at the two ends of the bottom plate respectively, each elastic clamping piece comprises an elastic clamping plate, a hinge seat and a pressing piece, elastic supporting pieces supporting the elastic clamping plate upwards are arranged on the two sides of the elastic clamping plate respectively, one end of each elastic clamping plate is fixed to the bottom plate, and the other end of each elastic clamping plate is fixed to the hinge seat. The other end of the elastic clamping plate is bent to form a clamping part, a positioning groove for embedding the clamping part is formed in the bottom plate, and a rib block is arranged at one end of the positioning groove; the hinge seat is arranged on the bottom plate, a pressing piece is hinged to the hinge seat and comprises a shifting plate and a pressing block, the bottom of the pressing block is a plane and forms an abutting part, a hinge shaft is arranged on the pressing block in a penetrating mode, the hinge shaft and the pressing block are eccentrically arranged, the shifting plate is arranged on one side of the pressing block, and the pressing block is driven by the shifting plate to rotate. According to the abrasive paper clamping device, the pressing part of the pressing block downwards abuts against the middle of the elastic clamping plate, so that the clamping part is embedded into the positioning groove and matched with the convex edge block, abrasive paper is pressed and fixed, the abrasive paper is effectively clamped and fixed, the abrasive paper fixing effect is improved, and the problems of loosening and falling off are solved.

Description

Technical Field

[0001] The utility model belongs to the technical field of sandpaper grinding, and particularly relates to a sandpaper grinder convenient to clamp. Background Technique

[0002] The sandpaper grinder is used to grind the surfaces of metals, woods, etc. to make them smooth. The traditional sandpaper grinder clamps and fixes the sandpaper through the clips at both ends. Although the operation is simple, the fixing effect of the clips is limited. It mainly uses a torsion spring to exert a clamping force, and it is easy to have the phenomenon of clamping looseness after long-term use, resulting in the problem of clamping failure. Chinese patent document: CN201420158707.0, discloses a sand wall device, including a planer knife, a fixing plate, a sandpaper, and a handle. Bench convex surfaces are provided at the front and rear ends of the bottom surface of the fixing plate, and the middle part is a sandpaper fitting concave surface and a planer knife fixing concave surface. Threaded holes for fixing the planer knife are provided on the planer knife fixing concave surface. On the left and right of the planer knife fixing concave surface are rectangular chip removal holes and sandpaper pressing holes respectively. A pair of support columns are provided on the left side of the sandpaper pressing hole and the right side of the handle respectively, and a rotating shaft hole is provided thereon; it also includes a pressing shaft, on which an eccentric shaft hole is provided. The rotating shaft passes through the rotating shaft hole and the eccentric shaft hole to connect the pressing shaft with the support column; two kidney-shaped counterbore holes are provided on the planer knife, and the planer knife is fixed on the planer knife fixing concave surface through the threaded hole and the counterbore hole by screws. This application only presses and fixes the sandpaper through the pressing shaft, and the fixing effect of the pressing shaft is average. During the reciprocating friction process of the sandpaper, it is easy to have the problem of loosening, thus affecting the effective fixing of the sandpaper. Summary of the Utility Model

[0003] Aiming at the above problems, the utility model discloses a sandpaper grinder convenient to clamp, which solves the problems that the fixing effect of the existing sandpaper grinder is average and the sandpaper is easy to loosen.

[0004] The specific technical solutions are as follows:

[0005] A sandpaper grinder that is convenient for clamping, comprising a bottom plate, a handle is arranged in the middle on the bottom plate, and elastic clamping members are respectively arranged at both ends on the bottom plate. The elastic clamping members include elastic clamping plates, hinge seats and pressing members. Elastic support sheets are respectively arranged on both sides of the elastic clamping plate. One end of the elastic support sheet abuts against the bottom plate and supports the elastic clamping plate upward. One end of the elastic clamping plate close to the handle is fixed to the bottom plate. The other end of the elastic clamping plate is bent downward to form a clamping portion for clamping the sandpaper. A positioning groove for the downward embedding of the clamping portion is horizontally opened on the bottom plate, and a convex rib block is horizontally arranged on the bottom plate at one end of the positioning groove away from the handle; The hinge seat is arranged on the bottom plate, and two through openings for accommodating the hinge seat are horizontally opened on the left and right sides of the elastic clamping plate. A hinge shaft is horizontally arranged on the hinge seat, and the pressing member is hinged on the hinge shaft. The pressing member includes a dial plate and a pressing block. The top and side surfaces of the pressing block are both arranged as arc surfaces, and the bottom surface of the pressing block is arranged as a plane to form a pressing portion. The hinge shaft horizontally penetrates through the pressing block, and the hinge shaft and the pressing block are eccentrically arranged. A dial plate is arranged on one side of the pressing block. By driving the pressing block to rotate through the dial plate, the pressing portion of the pressing block presses downward on the middle of the elastic clamping plate, so that the clamping portion is embedded in the positioning groove and cooperates with the convex rib block to realize the pressing and fixing of the sandpaper.

[0006] Further, one end of the elastic clamping plate close to the handle is bent downward to form a limiting portion, and a limiting groove for accommodating the limiting portion is horizontally opened on the bottom plate. A limiting rib is horizontally arranged on the bottom plate at one end of the limiting groove. A pressing plate is horizontally arranged at the top end of the limiting rib, and the pressing plate is attached to the top of the elastic clamping plate to realize the limiting of the lifting of the limiting portion by the pressing plate.

[0007] Further, when the pressing portion of the pressing block presses on the elastic clamping plate, the bottom of the dial plate also presses on the elastic clamping plate.

[0008] Further, rectangular openings are symmetrically opened on both sides of the elastic clamping plate. One end side wall of the rectangular opening extends obliquely upward to form the elastic support sheet. One end of the elastic support sheet is bent downward and abuts against the bottom plate, and the other end of the elastic support sheet is integrally connected to the side wall of the rectangular opening.

[0009] Further, the longitudinal section of the convex rib block is in a triangular structure, the longitudinal section of the positioning groove is in a V-shaped structure, and one side wall of the positioning groove and one side wall of the convex rib block are in the same plane.

[0010] Further, the elastic clamping plate is made of metal material.

[0011] The beneficial effects of the present utility model are embodied in:

[0012] The utility model adopts an elastic clamping plate in combination with a pressing piece, and the pressing piece is rotated and pressed down by toggling the toggle plate. The elastic clamping plate cooperates with the clamping part, the positioning groove and the convex edge block to increase the friction resistance to the sandpaper, thereby achieving effective clamping and fixing of the sandpaper, greatly improving the fixing effect of the sandpaper, avoiding the problem of the sandpaper loosening and falling off, and the operation is simple and quick. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] Figure 1 It is a structural schematic diagram of the sandpaper grinder of the utility model.

[0014] Figure 2 It is the front view of the sandpaper grinder in the utility model.

[0015] Figure 3 The utility model is a schematic diagram of the structure of the sandpaper grinder when clamping sandpaper.

[0016] Figure 4 The utility model is a schematic diagram of the structure of the sandpaper grinder after the sandpaper is removed.

[0017] Bottom plate 1, positioning groove 11, convex ridge block 12, limiting groove 13, limiting convex strip 14, pressure plate 15, handle 2, elastic clamping plate 3, rectangular opening 31, elastic supporting sheet 32, through opening 33, clamping part 34, limiting part 35, hinge seat 4, hinge shaft 41, pressing piece 5, pressing block 51, pressing part 511, paddle 52, sandpaper 6. DETAILED DESCRIPTION

[0018] In order to make the technical solution of the utility model clearer, the utility model is further described below in conjunction with the accompanying drawings. Any equivalent replacement of the technical features of the technical solution of the utility model and any solution derived from conventional reasoning shall fall within the protection scope of the utility model. The fixed connection and fixed setting mentioned in the utility model are all common connection methods in the mechanical field, including welding, bolt and nut connection, and screw connection.

[0019] In the description of the present invention, it should be understood that the terms "upper", "lower", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside" and "outside" etc., indicating directions or positional relationships, are based on the directions or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific direction, be constructed and operated in a specific direction, and therefore should not be understood as a limitation on the present invention.

[0020] like Figures 1-4As shown in the figure, this embodiment provides a sandpaper grinder that is convenient for clamping, including a bottom plate 1. A handle 2 is arranged in the middle of the bottom plate 1. At both ends of the bottom plate 1, an elastic clamping member is respectively provided. The elastic clamping member includes an elastic clamping plate 3, a hinge seat 4, and a pressing member 5. The elastic clamping plate 3 is made of metal. Rectangular openings 31 are symmetrically formed on both sides of the elastic clamping plate 3. The side wall of the rectangular opening 31 far away from the handle 2 extends obliquely upward and forms an elastic support piece 32. One end of the elastic support piece 32 is bent downward and presses against the bottom plate 1, so as to play a role in upwardly supporting the elastic clamping plate 3. And the other end of the elastic support piece 32 is integrally connected to the side wall of the rectangular opening 31.

[0021] One end of the elastic clamping plate 3 close to the handle 2 is fixed to the bottom plate 1. The other end of the elastic clamping plate 3 is bent downward and forms a clamping portion 34 for clamping the sandpaper 6. And a positioning groove 11 for the downward embedding of the clamping portion 34 is horizontally formed on the bottom plate 1. A convex rib block 12 is horizontally arranged on the bottom plate 1 at one end of the positioning groove 11 far away from the handle 2. The longitudinal section of the convex rib block 12 is in a triangular structure, and the longitudinal section of the positioning groove 11 is in a V-shaped structure. And one side wall of the positioning groove 11 and one side wall of the convex rib block 12 are located on the same plane. The hinge seat 4 is arranged on the bottom plate 1. And two through openings 33 for accommodating the hinge seat 4 are formed on the left and right sides of the elastic clamping plate 3. A hinge shaft 41 is horizontally arranged on the hinge seat 4. The pressing member 5 is hingedly arranged on the hinge shaft 41. The pressing member 5 includes a dial plate 52 and a pressing block 51. The top and side surfaces of the pressing block 51 are both in an arc surface setting. And the bottom of the pressing block 51 is in a plane setting and forms a pressing portion 511. The hinge shaft 41 is horizontally penetrated through the pressing block 51. The hinge shaft 41 and the pressing block 51 are eccentrically arranged. A dial plate 52 is arranged on one side of the pressing block 51. By driving the pressing block 51 to rotate through the dial plate 52, the pressing portion 511 of the pressing block 51 presses downward on the middle of the elastic clamping plate 3, so that the clamping portion 34 is embedded into the positioning groove 11 and cooperates with the convex rib block 12 to realize the pressing and fixing of the sandpaper 6. And when the pressing portion 511 of the pressing block 51 presses on the elastic clamping plate 3, the bottom of the dial plate also presses on the elastic clamping plate 3.

[0022] In this embodiment, the elastic clamping plate 3 is pressed by using the planar structure pressing portion 511, which can avoid the problem that the pressing member 5 moves under the restoring force of the elastic clamping plate 3, resulting in clamping failure.

[0023] In this embodiment, one end of the elastic clamping plate 3 close to the handle 2 is bent downward and forms a limiting portion 35. And a limiting groove 13 for accommodating the limiting portion 35 is horizontally formed on the bottom plate 1. A limiting convex strip 14 is horizontally arranged on the bottom plate 1 at one end of the limiting groove 13. A pressing plate 15 is horizontally arranged at the top end of the limiting convex strip 14. The pressing plate 15 is attached to the top of the elastic clamping plate 3 to realize the limit of the pressing plate 15 on the lifting of the limiting portion 35.

[0024] When fixing the sandpaper, the two ends of the sandpaper are embedded into the bottom of the elastic clamps 3 at the left and right ends, and then the pressing piece 5 is rotated by the dial plate 52 at one end to make the pressing piece 5 press the elastic clamp 3 downward, so that one end of the sandpaper is clamped by the clamping part 34, and then the other end of the sandpaper is stretched to keep the sandpaper as straight as possible, and finally the pressing piece 5 on this side is rotated to achieve the clamping and fixing of the two ends of the sandpaper.

[0025] The above is only a preferred specific implementation of the utility model, but the protection scope of the utility model is not limited thereto. Any changes or substitutions that can be easily thought of by a technician familiar with the technical field within the technical scope disclosed by the utility model should be included in the protection scope of the utility model. Therefore, the protection scope of the utility model should be based on the protection scope of the claims.

Claims

1. A sandpaper grinder convenient for clamping, comprising a bottom plate (1), a handle (2) is arranged in the middle on the bottom plate (1), and elastic clamping members are respectively arranged at both ends on the bottom plate (1), characterized in that, The elastic clamping member includes an elastic clamping plate (3), a hinge seat (4) and a pressing member (5). Elastic support pieces (32) are respectively arranged on both sides of the elastic clamping plate (3). One end of the elastic support piece (32) abuts against the bottom plate (1) and supports the elastic clamping plate (3) upward. One end of the elastic clamping plate (3) close to the handle (2) is fixed to the bottom plate (1). The other end of the elastic clamping plate (3) is bent downward to form a clamping portion (34) for clamping the sandpaper (6). A positioning groove (11) for the downward embedding of the clamping portion (34) is horizontally formed on the bottom plate (1). A convex rib block (12) is horizontally arranged on the bottom plate (1) at one end of the positioning groove (11) away from the handle (2). The hinge seat (4) is arranged on the bottom plate (1). Two through openings (33) for accommodating the hinge seat (4) are formed on the left and right sides of the elastic clamping plate (3). A hinge shaft (41) is horizontally arranged on the hinge seat (4). The pressing member (5) is hinged on the hinge shaft (41). The pressing member (5) includes a dial plate (52) and a pressing block (51). The top and side surfaces of the pressing block (51) are both arranged as arc surfaces. The bottom of the pressing block (51) is arranged as a plane to form a pressing portion (511). The hinge shaft (41) horizontally penetrates through the pressing block (51). The hinge shaft (41) and the pressing block (51) are eccentrically arranged. The dial plate (52) is arranged on one side of the pressing block (51). By driving the pressing block (51) to rotate through the dial plate (52), the pressing portion (511) of the pressing block (51) presses downward on the middle of the elastic clamping plate (3), so that the clamping portion (34) is embedded into the positioning groove (11) and cooperates with the convex rib block (12) to realize the pressing and fixing of the sandpaper.

2. The sandpaper polisher that is convenient to clamp according to claim 1, wherein, One end of the elastic clamping plate (3) close to the handle (2) is bent downward to form a limiting portion (35). A limiting groove (13) for accommodating the limiting portion (35) is horizontally formed on the bottom plate (1). A limiting convex strip (14) is horizontally arranged on the bottom plate (1) at one end of the limiting groove (13). A pressing plate (15) is horizontally arranged at the top end of the limiting convex strip (14). The pressing plate (15) is attached to the top of the elastic clamping plate (3) to realize the limiting of the lifting of the limiting portion (35) by the pressing plate (15).

3. The sandpaper grinder that is convenient to hold according to claim 1, characterized in that, When the pressing portion (511) of the pressing block (51) presses on the elastic clamping plate (3), the bottom of the dial plate also presses on the elastic clamping plate (3).

4. The sandpaper grinder convenient for clamping according to claim 1, characterized in that, Rectangular openings (31) are symmetrically formed on both sides of the elastic clamping plate (3). The side wall of one end of the rectangular opening (31) away from the handle (2) extends obliquely upward to form the elastic support piece (32). One end of the elastic support piece (32) is bent downward and abuts against the bottom plate (1). The other end of the elastic support piece (32) is integrally connected to the side wall of the rectangular opening (31).

5. The sandpaper grinder convenient for clamping according to claim 4, characterized in that, The elastic clamping plate (3) is made of metal material.

6. The sandpaper grinder convenient for clamping according to claim 1, characterized in that, The longitudinal section of the convex rib block (12) is in a triangular structure. The longitudinal section of the positioning groove (11) is in a V-shaped structure. One side wall of the positioning groove (11) and one side wall of the convex rib block (12) are located on the same plane.

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