Abrasive paper frame with high locking force
By designing a locking mechanism on the sandpaper holder, and utilizing components such as a winding column, clamping groove, clamping plate, and micro motor, the problem of sandpaper loosening and falling off is solved, achieving higher stability and locking force, and extending the service life of the sandpaper.
Patent Information
- Application Number
- CN202422801703.6
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-11-18
- Publication Date
- 2025-11-04
- Estimated Expiration
- 2034-11-18
AI Technical Summary
Existing sandpaper holders do not clamp sandpaper well after it is installed, causing the sandpaper to loosen or fall off easily, resulting in damage and rapid wear and tear.
A sandpaper holder with a locking mechanism was designed, comprising a winding column, a clamping groove, a clamping plate, and a micro motor. The sandpaper is stably fixed by a combination of snap-fit grooves, connecting holes, and quick-release bolts.
It improves the stability and locking force of sandpaper on the sandpaper holder, preventing loosening and falling off, and extending the service life of the sandpaper.
Smart Images

Figure CN223506996U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of sandpaper holder technology, specifically to a sandpaper holder with high locking force. Background Technology
[0002] Sandpaper is a commonly used auxiliary tool that can make the surface of equipment smooth and flat. Sandpaper usually needs to be used with a sandpaper holder. The sandpaper holder is a tool used for sanding and polishing the surface of products. The sandpaper is attached to the bottom of the sandpaper holder for sanding.
[0003] Existing sandpaper holders do not clamp sandpaper securely after it is installed, making it difficult to keep the sandpaper firmly in place. During use, the sandpaper is prone to loosening or even falling off, resulting in damage and rapid wear and tear. Utility Model Content
[0004] The purpose of this utility model is to address the shortcomings of existing technologies by providing a sandpaper holder with high locking force. This solves the problem that existing sandpaper holders have poor clamping effect after sandpaper is installed, making it impossible to firmly install the sandpaper on the holder. As a result, the sandpaper is prone to loosening or even falling off during use, causing damage to the sandpaper and rapid wear and tear.
[0005] To achieve the above objectives, this utility model provides the following technical solution:
[0006] A sandpaper holder with high locking force includes a sandpaper holder body. The sandpaper holder body includes an operating plate with a long rectangular structure. A handle is provided on the top end face of the operating plate. Locking mechanisms for fixing sandpaper are provided on both sides of the operating plate. The locking mechanism includes two oppositely arranged mounting plates. A winding column is rotatably provided between the two mounting plates. A clamping groove is opened on the outer end face of the winding column. A clamping plate is provided in the clamping groove. One end of the clamping plate is rotatably connected to the winding column. The other end of the clamping plate is provided with a connecting plate integrally formed therewith. A first connecting hole for quick-release bolts is opened through the connecting plate.
[0007] As a preferred technical solution of this utility model, a micro motor with an output end connected to a winding column is provided on the outer end face of the mounting plate in a locking mechanism.
[0008] As a preferred embodiment of this utility model, the clamping groove is provided with a snap-fit groove that communicates with it, and the inner end face of the clamping plate is provided with a snap-fit plate that matches the snap-fit groove.
[0009] The above technical solution improves the tightness of sandpaper installation on the take-up column by using the snap-fit plate and snap-fit groove.
[0010] As a preferred embodiment of this utility model, the winding column is provided with a connecting groove for the connecting plate to be engaged, and a second connecting hole communicating with the first connecting hole is provided in the connecting groove.
[0011] The above technical solution, through the setting of the first connecting hole, the second connecting hole and the quick-release bolt, ensures the stability of the sandpaper installed on the take-up column.
[0012] As a preferred technical solution of this utility model, the operation plate has symmetrical through-holes on both sides for the sandpaper end to be inserted and installed on the locking mechanism.
[0013] The above technical solution utilizes the installation groove to limit the sandpaper's installation on the locking mechanism.
[0014] Compared with the prior art, the beneficial effects of this utility model are:
[0015] In use, this invention first places one end of the sandpaper through one of the mounting slots on the operating plate and into the clamping slot of the winding column. Then, the clamping plate is rotated to press and fix the sandpaper in the clamping slot, ensuring that a portion of the sandpaper remains outside the clamping slot after the locking mechanism presses it. At this point, the first connecting hole on the clamping plate connects with the second connecting hole on the winding column. Quick-release bolts are inserted into the connected first and second connecting holes for fixation, thus fixing the end of the sandpaper. Next, the other end of the sandpaper is installed on the other end of the operating plate in the same manner and fixed, thus installing the sandpaper on the sandpaper holder body. After the sandpaper is installed on the sandpaper holder body, the micro motor is started to drive the winding column to rotate, causing the sandpaper to roll onto the winding column, thereby adjusting the tightness of the sandpaper installed on the sandpaper holder body. This invention improves the stability and locking force of the sandpaper installed on the sandpaper holder body, preventing the sandpaper from loosening or even falling off during use. Attached Figure Description
[0016] Figure 1 This is a schematic diagram of the structure of this utility model;
[0017] Figure 2 This is a schematic diagram of the locking mechanism of this utility model;
[0018] In the diagram: 1. Control panel; 2. Handle; 3. Mounting slot; 4. Locking mechanism; 401. Mounting plate; 402. Micro motor; 403. Rewinding column; 404. Snap-fit slot; 405. Clamping slot; 406. Connecting slot; 407. Second connecting hole; 408. Clamping plate; 409. Snap-fit plate; 410. Connecting plate; 411. First connecting hole. Detailed Implementation
[0019] The preferred embodiments of the present invention will now be described in detail with reference to 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 providing a clearer and more definite definition of the scope of protection of the present invention.
[0020] In the description of this utility model, unless otherwise stated, "a plurality of" means two or more; the terms "upper," "lower," "left," "right," "inner," "outer," "front end," "rear end," "head," "tail," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings, and are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this utility model. In addition, the terms "first," "second," "third," etc., are used for descriptive purposes only and should not be construed as indicating or implying relative importance.
[0021] Example
[0022] This utility model provides a sandpaper holder with high locking force, see reference. Figure 1-2 As shown, the device includes a sandpaper holder body, which includes an operating plate 1 with a long rectangular structure. A handle 2 is provided on the top surface of the operating plate 1. Both sides of the operating plate 1 are provided with locking mechanisms for fixing the ends of the sandpaper. The locking mechanism improves the stability and locking force of the sandpaper installed on the sandpaper holder body, thereby preventing the sandpaper from becoming loose or even falling off during use.
[0023] The operating plate 1 has symmetrical through-holes on both sides, with mounting slots 3 for inserting the ends of sandpaper and mounting them onto the locking mechanism. The mounting slots 3 limit the position of the sandpaper on the locking mechanism.
[0024] refer to Figure 2 The locking mechanism shown includes two oppositely arranged mounting plates 401, with a winding post 403 rotatably disposed between the two mounting plates 401. A clamping groove 405 is provided on the outer end face of the winding post 403, and a clamping plate 408 is provided in the clamping groove 405. One end of the clamping plate 408 is rotatably connected to the winding post 403, and the other end of the clamping plate 408 is provided with a connecting plate 410 integrally formed therewith. A first connecting hole 411 for quick-release bolts to be inserted is provided through the connecting plate 410.
[0025] Furthermore, one of the locking mechanisms has a micro motor 402 on the outer end face of the mounting plate 401, the output end of which is connected to the take-up column 403. Through the setting of the micro motor 402, the take-up column 403 can be driven to rotate and tighten the sandpaper.
[0026] Furthermore, a snap-fit groove 404 is provided in the clamping groove 405 and communicates with it. A snap-fit plate 409 is provided on the inner end face of the clamping plate 408 and matches the snap-fit groove 404. The snap-fit plate 409 and the clamping plate 408 are integrally formed. The snap-fit plate 409 and the snap-fit groove 404 are provided to improve the tightness of the sandpaper installed on the winding column 403.
[0027] Furthermore, the take-up column 403 is provided with a connecting groove 406 for the connecting plate 410 to engage. The connecting groove 406 communicates with the clamping groove 405, and a second connecting hole 407 communicating with the first connecting hole 411 is provided in the connecting groove 406. The arrangement of the first connecting hole 411, the second connecting hole 407, and the quick-release bolt ensures the stability of the sandpaper installed on the take-up column 403.
[0028] The working principle of this utility model is as follows:
[0029] In use, first, place one end of the sandpaper through one of the mounting slots 3 on the operating plate 1 and into the clamping slot 405 of the take-up column 403. Then, rotate the clamping plate 408 to press and fix the sandpaper in the clamping slot 405, ensuring that a portion of the sandpaper remains outside the clamping slot 405 after the locking mechanism presses it down. At this time, the first connecting hole 411 on the clamping plate 408 connects with the second connecting hole 407 on the take-up column 403. Insert the quick-release bolts into the connected first connecting hole 411 and second connecting hole 407 for fixation. After fixing one end of the sandpaper, the other end of the sandpaper is then fixed to the other end of the operating plate 1 as described above, thus installing the sandpaper on the main body of the sandpaper holder. After the sandpaper is installed on the main body of the sandpaper holder, the micro motor 402 is started to drive the winding column 403 to rotate, so that the sandpaper is rolled onto the winding column 403, thereby adjusting the tightness of the sandpaper installed on the main body of the sandpaper holder. This utility model improves the stability and locking force of the sandpaper installed on the main body of the sandpaper holder, and avoids the sandpaper from becoming loose or even falling off during use.
[0030] In the description of this utility model, it should be noted that, unless otherwise explicitly specified and limited, the terms "connected" and "linked" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.
[0031] The embodiments described above are merely examples of several implementations of this utility model, and while the descriptions are relatively specific and detailed, they should not be construed as limiting the scope of the utility model patent. It should be noted that those skilled in the art can make various modifications and improvements without departing from the concept of this utility model, and these modifications and improvements all fall within the protection scope of this utility model.
Claims
1. A sandpaper holder with high locking force, comprising a sandpaper holder body, characterized in that: The main body of the sandpaper holder includes an operating plate (1) with a long rectangular structure. A handle (2) is provided on the top end face of the operating plate (1). Both sides of the operating plate (1) of the handle (2) are provided with locking mechanisms for fixing the sandpaper. The locking mechanism includes two oppositely arranged mounting plates (401). A winding column (403) is rotatably provided between the two mounting plates (401). A clamping groove (405) is provided on the outer end face of the winding column (403). A clamping plate (408) is provided in the clamping groove (405). One end of the clamping plate (408) is rotatably connected to the winding column (403). The other end of the clamping plate (408) is provided with a connecting plate (410) integrally formed with it. A first connecting hole (411) for quick-release bolts is provided through the connecting plate (410).
2. The sandpaper holder with high locking force according to claim 1, characterized in that: One of the locking mechanisms has a micro motor (402) on the outer end face of the mounting plate (401) with an output end connected to the take-up column (403).
3. The sandpaper holder with high locking force according to claim 1, characterized in that: The clamping groove (405) is provided with a snap-fit groove (404) that communicates with it, and the inner end face of the clamping plate (408) is provided with a snap-fit plate (409) that matches the snap-fit groove (404).
4. A sandpaper holder with high locking force according to claim 1, characterized in that: The winding column (403) is provided with a connecting groove (406) for the connecting plate (410) to engage, and a second connecting hole (407) communicating with the first connecting hole (411) is provided in the connecting groove (406).
5. A sandpaper holder with high locking force according to claim 1, characterized in that: The operating plate (1) has symmetrical through-holes on both sides for the sandpaper end to be inserted and installed on the locking mechanism.