Improved abrasive paper frame

Abstract

The utility model relates to the technical field of abrasive paper, in particular to an improved abrasive paper frame which comprises an abrasive paper frame body and a handheld portion installed on the abrasive paper frame body, the abrasive paper frame body is provided with a plurality of abrasive paper supporting faces, and after the abrasive paper is installed, the abrasive paper on the abrasive paper supporting faces can be used for conducting polishing work in sequence. The problems that abrasive paper on an existing polishing frame only has one polishing face, the abrasive paper needs to be frequently replaced after being abraded, and the working efficiency is low are solved, the working efficiency is improved, a handheld part comprises a grip arranged on the outer side of an abrasive paper frame body, and supporting columns rotationally connected with the center position of the abrasive paper frame body are symmetrically arranged on the two sides of the grip; and through the arrangement that the handheld part is rotationally connected with the abrasive paper frame body, a worker can conveniently hold the grip to conduct grinding work when using different abrasive paper supporting faces, and practicability is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of sandpaper, in particular to an improved sandpaper rack. Background Art

[0002] The sandpaper rack is a tool used for sanding and polishing the surface of a product. When in use, the sandpaper is bonded to the bottom of the sandpaper rack for polishing. Since the sandpaper is easily worn, it needs to be replaced. In the structure of the pressing plate for pressing the sandpaper in the existing sandpaper rack, most of them use a screw to lock the pressing plate to press the sandpaper.

[0003] In the prior art, the sandpaper on the sanding frame has only one sanding surface. After the sandpaper is worn, it is necessary to remove the screws, remove the waste sandpaper, replace it with new sandpaper, and then tighten it with the screws. This frequent replacement of sandpaper makes the workers' labor intensity high and the work efficiency low. Utility Model Content

[0004] The purpose of the utility model is to provide an improved sandpaper rack to address the defects of the existing technology, so as to solve the problem that the sandpaper on the sanding rack in the existing technology has only one sanding surface. After the sandpaper is worn, it is necessary to remove the screws, remove the waste sandpaper, replace it with new sandpaper and then tighten it with the screws. This frequent replacement of sandpaper makes the workers' labor intensity high and the work efficiency low.

[0005] To achieve the above objectives, the present invention provides the following technical solutions:

[0006] An improved sandpaper holder includes a sandpaper holder body and a handheld portion mounted on the sandpaper holder body, the sandpaper holder body being provided with a plurality of sandpaper supporting surfaces, a through slot being provided along the length of the sandpaper holder body, the through slot being provided with a plurality of guide holes, first fastening holes for receiving fastening screws being symmetrically provided on the through slots on both sides of the guide holes, and a pressing plate being provided in the through slots for fixing both sides of the sandpaper to the sandpaper holder body;

[0007] The hand-held part includes a handle arranged on the outside of the sandpaper holder body, and support columns rotatably connected to the center position of the sandpaper holder body are symmetrically provided on both sides of the handle, and fixed blocks are symmetrically provided on the left and right sides of one end of the support column close to the sandpaper holder body, and an empty slot is opened on the side of the fixed block close to the sandpaper holder body, and a locking rod is slidably connected in the empty slot, one end of the locking rod extends to the outside of the empty slot, and the other end of the locking rod is fixedly connected to a compression spring, and the end of the compression spring away from the locking rod is fixedly connected to the inner wall of the empty slot, and the top of the end of the locking rod located inside the empty slot is fixedly connected to a driving rod extending to the outside of the empty slot and passing through the fixed block.

[0008] As an optimal technical solution of the present invention, the bottom end face of the clamping plate is fixedly connected with a guide rod that corresponds one-to-one and fits with the guide holes, and the clamping plates on both sides of the guide rod are provided with second fastening holes that correspond one-to-one and are connected with the first fastening holes, and the second fastening holes are countersunk holes.

[0009] As an optimal technical solution of the present invention, a linkage plate is fixedly connected to the bottom of one end of the support column close to the sandpaper holder body, an elastic positioning block is provided on the inner side of the linkage plate, and positioning grooves are provided on both sides of the sandpaper holder body for positioning the support column after rotation and matching with the elastic positioning block.

[0010] As a preferred technical solution of the present invention, a driving groove for displacement of the driving rod is opened on the top end surface of the fixing block, and the driving groove is connected to the empty groove.

[0011] As a preferred technical solution of the present invention, locking grooves for inserting locking rods are provided on both sides of the sandpaper holder body.

[0012] Compared with the prior art, the beneficial effects of the present invention are:

[0013] The sandpaper holder body of the utility model has multiple sandpaper supporting surfaces, and after the sandpaper is installed, the sandpaper on the multiple sandpaper supporting surfaces can be used to perform grinding work in sequence, which solves the problem that the sandpaper on the existing grinding holder has only one grinding surface, and the sandpaper needs to be frequently replaced after the sandpaper is worn, which is inefficient, thereby improving work efficiency. The hand-held portion is rotatably connected to the sandpaper holder body, so that the worker can hold the handle for grinding when using different sandpaper supporting surfaces, thereby improving practicality. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 It is a structural diagram of the utility model;

[0015] Figure 2 This is a structural diagram of the sandpaper holder main body of the utility model;

[0016] Figure 3 It is a partial enlarged view of part A of the present utility model;

[0017] Figure 4 This is a schematic structural diagram of the handheld portion of the present invention;

[0018] Figure 5 It is a cross-sectional view of the fixing block of the present utility model;

[0019] Figure 6 This is a structural diagram of the compression plate of the present utility model;

[0020] Figure 7This is a structural schematic diagram of the compression plate of the present invention from another perspective;

[0021] In the figure: 1. Sandpaper holder body; 101. Sandpaper support surface; 102. Through slot; 103. Guide hole; 104. First fastening hole; 105. Positioning slot; 106. Locking slot; 2. Hand-held part; 201. Grip; 202. Support column; 203. Fixed block; 204. Empty slot; 205. Locking rod; 206. Compression spring; 207. Drive rod; 208. Linkage plate; 209. Elastic positioning block; 210. Drive slot; 3. Fastening screw; 4. Sandpaper; 5. Pressing plate; 501. Guide rod; 502. Second fastening hole. DETAILED DESCRIPTION

[0022] The preferred embodiments of the present invention are described in detail below in conjunction with the accompanying drawings so that the advantages and features of the present invention can be more easily understood by those skilled in the art, thereby making a clearer and more precise definition of the protection scope of the present invention.

[0023] In the description of this utility model, unless otherwise specified, "plurality" means two or more; the terms "upper," "lower," "left," "right," "inner," "outer," "front end," "rear end," "head," "tail," etc., indicating directions or positional relationships, are based on the directions or positional relationships shown in the accompanying drawings and are intended solely to facilitate the description of this utility model and simplify the description. They do not indicate or imply that the devices or components referred to must have a specific direction, be constructed, or operate in a specific direction, and therefore should not be construed as limiting this utility model. Furthermore, the terms "first," "second," "third," etc., are used for descriptive purposes only and should not be construed as indicating or implying relative importance.

[0024] Example

[0025] refer to Figure 1-Figure 7 An improved sandpaper holder includes a sandpaper holder body 1 and a hand-held part 2 installed on the sandpaper holder body 1. The sandpaper holder body 1 is provided with three sandpaper supporting surfaces 101. A through groove 102 is opened on the sandpaper holder body 1 along its length direction. A plurality of guide holes 103 are opened on the through groove 102. First fastening holes 104 for inserting fastening screws 3 are symmetrically opened on the through groove 102 on both sides of the guide hole 103. A pressing plate 5 for fixing both sides of sandpaper 4 on the sandpaper holder body 1 is provided in the through groove 102.

[0026] refer to Figure 4-Figure 5The hand-held part 2 includes a handle 201 arranged on the outside of the sandpaper holder body 1, and support columns 202 rotatably connected to the center position of the sandpaper holder body 1 are symmetrically provided on both sides of the handle 201. Fixed blocks 203 are symmetrically provided on the left and right sides of one end of the support column 202 close to the sandpaper holder body 1. A slot 204 is opened on the side of the fixed block 203 close to the sandpaper holder body 1, and a locking rod 205 is slidably connected in the slot 204. One end of the locking rod 205 extends to the outside of the slot 204, and the other end of the locking rod 205 is fixedly connected to a compression spring 206. The end of the compression spring 206 away from the locking rod 205 is fixedly connected to the inner wall of the slot 204, and the top of the end of the locking rod 205 located inside the slot 204 is fixedly connected to a driving rod 207 extending to the outside of the slot 204 and passing through the fixed block 203.

[0027] Furthermore, locking grooves 106 for inserting the locking rods 205 are provided on both sides of the sandpaper holder body 1. The locking grooves 106 cooperate with the locking rods 205 to limit the rotation of the handheld part 2.

[0028] Furthermore, a driving slot 210 for the driving rod 207 to move is formed on the top end surface of the fixing block 203 , and the driving slot 210 is communicated with the empty slot 204 .

[0029] Furthermore, the bottom of the support column 202 near one end of the sandpaper holder body 1 is fixedly connected to a linkage plate 208, and the inner side of the linkage plate 208 is fixedly connected to an elastic positioning block 209. Positioning grooves 105 are provided on both sides of the sandpaper holder body 1 for positioning the support column 202 after rotation and matching with the elastic positioning block 209. Through the arrangement of the positioning grooves 105 and the elastic positioning block 209, the rotational displacement of the hand-held part 2 can be positioned when the sandpaper support surface 101 is adjusted, so that the grip 201 can correspond to the sandpaper 4 on each side of the sandpaper support surface 101, which is convenient for the staff to hold the grip 201 for grinding. The elastic positioning block 209 is made of rubber, has good wear resistance and elasticity, and has the ability to recover quickly when deformed by external force. When the support column 202 rotates, the elastic positioning block 209 deforms and rotates synchronously with the support column 202.

[0030] refer to Figure 6-Figure 7 The bottom end surface of the clamping plate 5 is fixedly connected with a guide rod 501 which corresponds to and fits with the guide hole 103 one by one. The clamping plate 5 on both sides of the guide rod 501 is provided with a second fastening hole 502 which corresponds to and communicates with the first fastening hole 104 one by one. The second fastening hole 502 is a countersunk hole. The setting of the countersunk hole ensures that the fastening screw 3 can be fully inserted into the second fastening hole 502 without protruding and affecting the subsequent grinding work.

[0031] The working principle of this utility model:

[0032] During installation, the staff installs the sandpaper 4 on one of the sandpaper support surfaces 101 of the sandpaper holder body 1, folds the two ends of the sandpaper 4 over the other sandpaper support surfaces 101, until the two ends of the sandpaper 4 are covered in the through groove 102, and then aligns the guide rod 501 on the pressing plate 5 with the guide hole 103 on the sandpaper holder body 1 for insertion. The sandpaper 4 in the through groove 102 is clamped between the sandpaper holder body 1 and the pressing plate 5. At this time, the second fastening hole 502 on the pressing plate 5 is aligned with the sandpaper holder body 1. The first fastening holes 104 on the upper surface are connected one by one, and finally the fastening screws 3 are screwed into the second fastening holes 502 and the first fastening holes 104 in sequence, thus completing the installation of the sandpaper 4 on the sandpaper holder body 1. The staff can grind the sandpaper 4 on the sandpaper supporting surface 101 on the side corresponding to the grip 201 by holding the grip 201 on the handheld part 2. Since the sandpaper holder body 1 is provided with multiple sandpaper supporting surfaces 101, when the sandpaper 4 on one of the sandpaper supporting surfaces 101 is worn out, the staff can grind the sandpaper 4 on the sandpaper supporting surface 101 on the handheld part 2. The driving rod 207 on the holding portion 2 is pulled toward the side away from the sandpaper holder body 1, thereby driving the locking rod 205 to move. At the same time, the compression spring 206 is squeezed and elastically deformed until the front end of the locking rod 205 is completely received in the empty groove 204. The hand-held portion 2 is rotated so that the unused sandpaper 4 on the other sandpaper supporting surface 101 is located on the side corresponding to the grip 201. At this time, the empty groove 204 on the hand-held portion 2 is connected one by one with the locking groove 106 on the sandpaper holder body 1. Then the driving rod 207 is released. The compression spring 206 is elastically reset to drive the front end of the locking rod 205 to extend and be inserted into the locking groove 106 on the sandpaper holder body 1, thereby fastening the hand-held part 2 to the sandpaper holder body 1. The staff holds the grip 201 on the hand-held part 2 and continues to sand the sandpaper 4 on the sandpaper supporting surface 101 on the side corresponding to the grip 201. The above operation is repeated until the sandpaper 4 on the sandpaper supporting surface 101 on each side of the sandpaper holder body 1 is used up, and then a new sandpaper 4 is replaced.

[0033] In the description of this utility model, it should be noted that, unless otherwise specified or limited, the terms "connected" and "connection" should be understood in a broad sense. For example, they can refer to fixed connection, detachable connection, or integral connection; mechanical connection, electrical connection; direct connection, or indirect connection through an intermediary. Those skilled in the art will understand the specific meanings of the above terms in this utility model based on the specific circumstances.

[0034] The above-described embodiments merely represent several implementation methods of the present invention. While the descriptions are relatively specific and detailed, they should not be construed as limiting the scope of the patent. It should be noted that a person skilled in the art would be able to make numerous variations and improvements without departing from the concept of the present invention, and all such variations and improvements fall within the scope of protection of the present invention.

Claims

1. An improved sandpaper holder, comprising a sandpaper holder body (1) and a hand-held portion (2) mounted on the sandpaper holder body (1), characterized in that: The sandpaper holder body (1) is provided with a plurality of sandpaper supporting surfaces (101), the sandpaper holder body (1) is provided with a through slot (102) along its length direction, the through slot (102) is provided with a plurality of guide holes (103), the through slots (102) on both sides of the guide holes (103) are symmetrically provided with first fastening holes (104) capable of being inserted with fastening screws (3), and a pressing plate (5) for fixing both sides of the sandpaper (4) on the sandpaper holder body (1) is provided in the through slot (102); The handheld portion (2) comprises a grip (201) arranged outside the sandpaper holder body (1), support columns (202) symmetrically provided on both sides of the grip (201) and rotatably connected to the center of the sandpaper holder body (1), and fixed blocks (203) symmetrically provided on the left and right sides of one end of the support column (202) close to the sandpaper holder body (1), and a slot (204) is provided on one side of the fixed block (203) close to the sandpaper holder body (1), and a sliding connection is provided in the slot (204). A locking rod (205) is provided, one end of the locking rod (205) extends to the outside of the empty slot (204), the other end of the locking rod (205) is fixedly connected to a compression spring (206), one end of the compression spring (206) away from the locking rod (205) is fixedly connected to the inner wall of the empty slot (204), and the top of one end of the locking rod (205) located inside the empty slot (204) is fixedly connected to a driving rod (207) extending to the outside of the empty slot (204) and passing through the fixed block (203).

2. The improved sandpaper holder according to claim 1, characterized in that: The bottom end surface of the clamping plate (5) is fixedly connected with a guide rod (501) which corresponds to and fits with the guide hole (103) one by one. The clamping plate (5) on both sides of the guide rod (501) is provided with a second fastening hole (502) which corresponds to and communicates with the first fastening hole (104) one by one. The second fastening hole (502) is a countersunk hole.

3. The improved sandpaper holder according to claim 1, characterized in that: A linkage plate (208) is fixedly connected to the bottom of one end of the support column (202) close to the sandpaper holder body (1); an elastic positioning block (209) is provided inside the linkage plate (208); and positioning grooves (105) for positioning the support column (202) after rotation and matching with the elastic positioning block (209) are provided on both sides of the sandpaper holder body (1).

4. The improved sandpaper holder according to claim 1, characterized in that: The top end surface of the fixed block (203) is provided with a driving groove (210) for the driving rod (207) to move, and the driving groove (210) is connected to the empty groove (204).

5. The improved sandpaper holder according to claim 1, characterized in that: Locking grooves (106) capable of being plugged into locking rods (205) are provided on both sides of the sandpaper holder body (1).

Images