Convenient-to-replace sand ring with quick-release connecting assembly
By designing a convenient replacement sanding ring with quick-release connecting components, and utilizing support components and connecting mechanisms, the problems of sanding rings loosening and falling off during high-speed rotation and obstructing vision are solved, achieving safe and reliable sanding ring replacement and saving consumables.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-04-30
- Publication Date
- 2026-04-14
AI Technical Summary
Existing sand rings are prone to loosening and falling off due to centrifugal force and vibration during high-speed rotation, and they can also obstruct the view during operation, leading to safety hazards and waste of consumables.
A convenient replacement sanding ring with quick-release connection assembly has been designed, including a support component and a connection mechanism. The support component provides inner support through multiple support rings, and the connection mechanism enables quick installation and removal through clips and springs, ensuring that the sanding ring is stable and easy to replace.
It reduces the risk of sanding rings flying out, improves operational safety and replacement efficiency, reduces material waste, and meets different sanding needs.
Smart Images

Figure CN224115927U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of nail art technology, and more specifically, to a convenient replacement nail ring with a quick-release connection component. Background Technology
[0002] A sanding ring is a common polishing tool widely used in nail art, metal processing, woodworking, ceramics, glass and other fields. It is mainly used for sanding, polishing, finishing or deburring the surface of objects. It is usually made of sandpaper or abrasive cloth and has a ring structure. It can be directly fitted onto the rotating shaft of a sander and has the characteristics of high efficiency, flexibility and wide applicability.
[0003] Currently, nail polish rings and caps on the market are only cylindrical, with limited design options. During the procedure, cylindrical rings can obstruct the nail technician's view when removing nail polish, potentially causing them to accidentally abrade the skin on the upper part of the customer's nail, resulting in discomfort. Furthermore, existing rings and caps are designed as a single unit, requiring disposable materials and lacking a detachable design, thus presenting certain drawbacks. A conical or arc-shaped ring would make the operation more convenient and safer, satisfying market demands.
[0004] A search revealed that Chinese patent CN213604941U discloses a tooling for easy replacement of sanding rings and sanding caps. This tooling features a sanding ring shaft and a sanding ring. The sanding ring is installed by bolts and connecting holes inside, allowing for easy connection between the sanding ring shaft and the corresponding sanding ring. The sanding ring is fitted with different sanding caps. The sanding caps are conical in shape to reduce blind spots and make operation safer and more comfortable, preventing accidental injury to customers. When the sanding ring grinding head is in use, the sanding ring or sanding cap will become more secure as the grinding head rotates.
[0005] In actual use, the aforementioned easy-to-replace sand ring and sand cap fixture involves simply placing the sand ring on the rotating shaft. During high-speed operation, the sand ring will fly off the shaft due to centrifugal force. At the same time, the vibration of the shaft and the friction between the sand ring and the shaft will cause the sand ring to gradually loosen, which may lead to the sand ring suddenly falling off. Utility Model Content
[0006] In order to overcome the above-mentioned defects of the prior art, the present invention provides a convenient replacement sand ring with quick-release connection component to solve the problems mentioned in the background art.
[0007] To achieve the above objectives, this utility model provides the following technical solution:
[0008] A convenient replacement sanding ring with quick-release connection assembly includes a sanding ring shaft, one end of which is fixedly connected to a positioning step, a connector is provided on the front side of the positioning step, a sanding ring is provided on the outside of the connector, a support assembly is installed inside the connector, and a connection mechanism is installed inside the positioning step.
[0009] The support assembly includes a sand cap, a threaded rod fixedly connected to one side of the sand cap, the threaded rod being threadedly connected to the inside of the connector, a boss fixedly connected to one end of the threaded rod, the boss being rotatably connected to the inside of the connector, a fixed disk fixedly connected to the inside of the connector, and a plurality of first springs fixedly connected to the inside of the fixed disk, the first springs being annularly distributed inside the fixed disk, a movable block fixedly connected to one end of each of the plurality of first springs, the movable block being slidably connected to the inside of the connector, the inner sectional surface of the plurality of movable blocks being adapted to the outer side of the boss, a fixed block fixedly connected to one end of the movable block, the fixed block being slidably connected to the inside of the connector and extending to the outside of the connector, and a support ring fixedly connected to one end of the fixed block.
[0010] By adopting the above technical solution, the interior of the sand ring can be stabilized, greatly reducing the risk of the sand ring flying out.
[0011] As a further description of the above technical solution: the connecting mechanism includes two first locking strips, the first locking strips are fixedly connected to the inner side of the connector, two pressing rods are slidably connected inside the positioning step, the pressing rods are symmetrically distributed inside the positioning step, a second locking strip is fixedly connected to one end of the pressing rod, one side of the second locking strip engages with one side of the first locking strip, and a second spring is fixedly connected between the two second locking strips.
[0012] By adopting the above technical solution, the installation or disassembly of the connector can be completed quickly, saving replacement time.
[0013] The technical effects and advantages of this utility model are as follows:
[0014] 1. By setting up support components, compared with the existing technology, multiple support rings extend outward in a ring shape, which can provide effective support inside the sand ring, reduce the risk of the sand ring flying out, and reduce the vibration and shaking of the sand ring during rotation due to imbalance or external interference, making the operation safer and more reliable. At the same time, the telescopic movement of multiple moving blocks facilitates the quick replacement of different sand rings.
[0015] 2. By setting up a connecting mechanism, compared with the existing technology, the two second clips can quickly engage and disengage with the first clip, enabling rapid replacement of the connector. This allows for the use of different grit sizes and shapes of sanding rings, saving replacement time and improving overall work efficiency. Attached Figure Description
[0016] Figure 1 This is a schematic diagram of the overall structure of this utility model.
[0017] Figure 2 This is a partial structural diagram of the connection between the first and second card strips of this utility model.
[0018] Figure 3 This is a schematic diagram of the internal structure of the connector of this utility model.
[0019] Figure 4 This is a cross-sectional view of the fixed disc structure of this utility model.
[0020] Figure 5 This is a schematic diagram of the sand cap structure of this utility model.
[0021] Figure 6 This is a schematic diagram of the positioning step structure of this utility model.
[0022] The attached diagram is labeled as follows: 1. Sanding ring shaft; 2. Positioning step; 3. Connector; 4. Sanding ring; 5. Sanding cap; 6. Threaded rod; 7. Boss; 8. Fixing plate; 9. First spring; 10. Moving block; 11. Fixing block; 12. Support ring; 13. First locking bar; 14. Pressing rod; 15. Second spring; 16. Second locking bar. Detailed Implementation
[0023] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.
[0024] The embodiments disclosed in this application are as follows: Figure 1-6 The invention relates to a convenient replacement sanding ring with a quick-release connection assembly, comprising a sanding ring shaft 1, a positioning step 2 fixedly connected to one end of the sanding ring shaft 1, a connector 3 provided on the front side of the positioning step 2, a sanding ring 4 provided on the outside of the connector 3, a support assembly installed inside the connector 3, and a connection mechanism installed inside the positioning step 2.
[0025] The support assembly includes a sand cap 5, with a threaded rod 6 fixedly connected to one side of the sand cap 5. The threaded rod 6 is internally threaded to the connector 3. A boss 7 is fixedly connected to one end of the threaded rod 6, and the boss 7 is rotatably connected to the connector 3. A fixed plate 8 is fixedly connected inside the connector 3, and multiple first springs 9 are fixedly connected inside the fixed plate 8. The first springs 9 are arranged in a ring inside the fixed plate 8. A movable block 10 is fixedly connected to one end of each of the multiple first springs 9. The movable block 10 is slidably connected to the connector 3. The inner cross-section of the multiple movable blocks 10 is adapted to the outer side of the boss 7. A fixed block 11 is fixedly connected to one end of the movable block 10. The fixing block 11 is slidably connected to the inside of the connector 3 and extends to the outside of the connector 3. A support ring 12 is fixedly connected to one end of the fixing block 11. The boss 7 is adapted to the cross-section of one side of multiple moving blocks 10, so that the boss 7 can squeeze the multiple moving blocks 10 to push the support ring 12 to extend outward through the fixing block 11. Thus, the multiple ring-shaped support rings 12 can provide support inside the sand ring 4, which can provide effective support inside the sand ring 4, reduce the risk of the sand ring flying out, and reduce the vibration and shaking of the sand ring 4 during rotation due to imbalance or external interference, thereby improving the safety of use.
[0026] Reference Figure 2 and 6 As shown, the connecting mechanism includes two first locking strips 13, which are fixedly connected to the inner side of the connector 3. Two pressing rods 14 are slidably connected inside the positioning step 2. The pressing rods 14 are symmetrically distributed inside the positioning step 2. A second locking strip 16 is fixedly connected to one end of the pressing rod 14. One side of the second locking strip 16 engages with one side of the first locking strip 13. A second spring 15 is fixedly connected between the two second locking strips 16. The two pressing rods 14 can squeeze the two second locking strips 16 to separate from the first locking strips 13. At the same time, the restoring force of the second spring 15 pushes the two second locking strips 16 to engage with the first locking strip 13. This allows for quick installation and disassembly of the connector 3, saving replacement time and facilitating the replacement of the appropriate connector 3 according to grinding requirements, thus meeting the needs of using sanding rings 4 of different sizes.
[0027] Working principle of this utility model: This utility model designs a convenient replacement sanding ring with a quick-release connection component. The specific structure is shown in the attached instruction manual. Figure 1-6As shown, in this technical solution, through the cooperation between various structures, when the sand ring 4 needs to be installed, firstly, the sand ring 4 is placed on the outside of the connector 3, and the sand cap 5 is rotated. The sand cap 5 drives the boss 7 to rotate inside the connector 3 through the threaded rod 6. The threaded rod 6 is threadedly connected to the inside of the connector 3, allowing the boss 7 to move to one side inside the connector 3. The outer side of the boss 7 is adapted to the cross-section of multiple moving blocks 10, allowing the boss 7 to press the multiple moving blocks 10 to move outward. Utilizing the extension and contraction of multiple first springs 9, the multiple moving blocks 10 can push the support ring 12 to move outward through the fixing block 11, thereby allowing the multiple support rings 12 to support the inside of the sand ring 4, facilitating the fixation of the sand ring 4. When the sand ring 4 needs to be replaced, the sand cap 5 is rotated in the opposite direction, causing the boss to... 7 is separated from multiple moving blocks 10. Using the reset force of multiple first springs 9, multiple moving blocks 10 can be pulled back to their original positions, causing multiple support rings 12 to lose their support for the inside of the sanding ring. Thus, the sanding ring 4 can be removed and replaced. When the connector 3 needs to be replaced for different grinding operations, press the two pressing rods 14 at the same time, so that the two pressing rods 14 squeeze the second locking strips 16, so that the two second locking strips 16 can move in opposite directions and separate from the first locking strips 13, thereby completing the disassembly of the connector 3. Insert one side of the connector 3 to be replaced into the outside of the two second locking strips 16, and at the same time, put one end of the connector 3 into contact with one side of the positioning step 2. Then release the two pressing rods 14. Using the reset force of the second spring 15, the two second locking strips 16 can be pushed to engage with the first locking strips 13, thereby completing the replacement of the connector 3.
[0028] In the accompanying drawings of the embodiments disclosed in this utility model, only the structures involved in the embodiments of this utility model are shown. Other structures can be referred to with ordinary design. In the absence of conflict, the same embodiment and different embodiments of this utility model can be combined with each other.
[0029] All contents not described in detail in the specification are existing technologies known to those skilled in the art, and the model parameters of each electrical appliance are not specifically limited; conventional equipment can be used. Electrical control components not mentioned in this technical solution are existing technologies and are therefore not shown in the figures and will not be described here.
[0030] In conclusion, the above are merely preferred embodiments of this utility model and are not intended to limit this utility model. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of this utility model should be included within the protection scope of this utility model.
Claims
1. A convenient replacement sanding ring with quick-release connection assembly, comprising a sanding ring shaft (1), characterized in that: One end of the sand ring shaft (1) is fixedly connected to a positioning step (2), a connector (3) is provided on the front side of the positioning step (2), a sand ring (4) is provided on the outside of the connector (3), a support component is installed inside the connector (3), and a connecting mechanism is installed inside the positioning step (2). The support assembly includes a sand cap (5), a threaded rod (6) is fixedly connected to one side of the sand cap (5), the threaded rod (6) is internally threaded to the connector (3), and a boss (7) is fixedly connected to one end of the threaded rod (6), the boss (7) is rotatably connected to the connector (3).
2. The convenient replacement sanding ring with quick-release connection assembly according to claim 1, characterized in that: The connector (3) has a fixed plate (8) inside, and a plurality of first springs (9) are fixedly connected inside the fixed plate (8). The first springs (9) are arranged in a ring inside the fixed plate (8).
3. The convenient replacement sanding ring with quick-release connection assembly according to claim 2, characterized in that: Each of the first springs (9) has a movable block (10) fixedly connected to one end. The movable block (10) is slidably connected to the inside of the connector (3). The inner side of the movable block (10) is adapted to the outer side of the boss (7).
4. The convenient replacement sanding ring with quick-release connection assembly according to claim 3, characterized in that: One end of the movable block (10) is fixedly connected to a fixed block (11), the fixed block (11) is slidably connected to the inside of the connector (3) and extends to the outside of the connector (3), and one end of the fixed block (11) is fixedly connected to a support ring (12).
5. The convenient replacement sanding ring with quick-release connection assembly according to claim 1, characterized in that: The connecting mechanism includes two first locking strips (13), which are fixedly connected to the inside of the connector (3).
6. The convenient replacement sanding ring with quick-release connection assembly according to claim 1, characterized in that: The positioning step (2) has two slidingly connected pressing rods (14), which are symmetrically distributed inside the positioning step (2).
7. The convenient replacement sanding ring with quick-release connection assembly according to claim 6, characterized in that: One end of the pressing rod (14) is fixedly connected to a second locking strip (16), one side of the second locking strip (16) is engaged with one side of the first locking strip (13), and a second spring (15) is fixedly connected between the two second locking strips (16).
Citation Information
Patent Citations
Sand ring and sand cap tool convenient to replace
CN213604941U