Ceramic grinding disc convenient to assemble
By designing protective devices and quick connection devices on the ceramic abrasive disc, the problems of cumbersome grinding liquid splash and grinding disc replacement are solved, achieving more efficient grinding effects and higher production efficiency.
Patent Information
- Application Number
- CN202421395829.1
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-06-19
- Publication Date
- 2025-03-21
- Estimated Expiration
- 2034-06-19
AI Technical Summary
The existing ceramic abrasive discs have the problem of splashing abrasive liquid during use, which affects the grinding effect and poses a threat to the safety of the operator. At the same time, the grinding disc replacement process is cumbersome, which increases the difficulty of operation and downtime.
A ceramic grinding disc that is easy to assemble is designed, using protective devices and quick connection devices. The protective devices include protective covers, buffer compartments and slots to prevent the abrasive liquid from splashing; the quick connection device includes a limiting rod, quick connection rod, threaded sleeve, clamping mechanism, adapter sleeve, quick connection sleeve and threaded cover. Through the spiral structural design of the limiting mechanism and clamping groove, the rapid replacement and stable installation of the grinding disc can be achieved.
It effectively prevents the splash of grinding liquid, improves the grinding effect and operation safety, and reduces downtime and improves production efficiency by quickly replacing the grinding disc.
Smart Images
Figure CN222644178U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of ceramic grinding discs, and more specifically, to a ceramic grinding disc which is convenient to assemble. Background Art
[0002] In the existing technology, there are some problems in the assembly and use of ceramic grinding discs. First, the traditional grinding disc structure is relatively simple and is usually fixed directly on the machine body. This fixing method may cause splashing due to excessive grinding fluid during the grinding process, which not only affects the grinding effect, but also may pose a threat to the safety of the operator.
[0003] Secondly, due to long-term use and wear, the performance of the grinding disc may decline, or in the actual production process, due to changes in the process, it may be necessary to replace a different model or a completely new grinding disc. However, the grinding disc replacement process in the prior art is usually cumbersome and complicated, and often requires the use of special tools for assistance, which not only increases the difficulty of operation, but also prolongs downtime and reduces production efficiency.
[0004] In addition, although some existing mechanisms can achieve rapid replacement of grinding discs, the designs of these mechanisms are often too simple, resulting in an unstable connection. This unstable connection may cause the grinding disc to loosen when rotating at high speed, which not only affects the grinding effect, but may also cause damage to the equipment and even pose a threat to the safety of the operator. Utility Model Content
[0005] 1. Technical issues to be resolved
[0006] In view of the problems existing in the prior art, the utility model provides a ceramic grinding disc that is easy to assemble to solve the technical problems mentioned in the background technology.
[0007] (II) Technical solution
[0008] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a ceramic grinding disc that is easy to assemble, comprising a grinding disc, characterized in that: a protective device is arranged on the grinding disc, a rotating shaft is arranged on one side of the grinding disc, a quick-connect device is connected to one end of the rotating shaft, the quick-connect device comprises a limit rod, a quick-connect rod, a threaded sleeve, a clamping mechanism, an adapter sleeve, a quick-connect sleeve and a threaded cover, the limit rod is fixedly connected to one side of the threaded sleeve, the quick-connect rod is fixedly connected to one end of the rotating shaft, the threaded sleeve is detachably mounted on one side of the quick-connect sleeve through threads, the adapter sleeve is movably sleeved on the outside of the quick-connect sleeve, and the threaded cover is detachably mounted on the quick-connect sleeve through threads At the other end, a limiting mechanism is arranged on the outside of the quick-connect rod, and the limiting mechanism includes a pressing plate, a pressing block, a first spring, a fixed plate, an adapter rod, a push spring, an adapter groove, a movable plate and a matching block. The pressing plate can be movably mounted on one side of the movable plate, and the pressing block is fixedly connected to one side of the pressing plate. Two ends of the first spring are respectively connected to the fixed plate and the matching block. The fixed plate is fixedly mounted on the outside of the quick-connect sleeve, and the adapter rod is fixedly connected to one side of the movable plate. The push spring can be movably mounted on the outside of the adapter rod, and the adapter groove is provided on the inner side of the adapter sleeve. The movable plate can be movably mounted on the outside of the quick-connect sleeve, and the matching block is fixedly connected to the other side of the movable plate.
[0009] The utility model is further configured such that the clamping mechanism includes a conical spring, a clamping groove and a movable rod, the clamping groove is arranged on the outside of the quick-connect rod, the movable rod can be movably mounted on the side wall of the quick-connect sleeve, and one end of the movable rod is inserted into the clamping groove, and the two ends of the conical spring are respectively connected to the outside of the quick-connect sleeve and the outside of the movable rod.
[0010] The utility model is further configured that the clamping groove is designed as a spiral structure, and a plurality of the movable rods are arranged along the direction of the thread line.
[0011] The utility model is further configured that a slide rail is provided on the outer side of the quick-connect sleeve, and a slide groove is provided on the inner side of the pressing plate and the matching member, and the slide groove is adapted to the slide rail.
[0012] The utility model is further configured that a second spring is disposed on the outer side of the quick-connect rod, and the second spring is movably disposed on the inner side of the quick-connect sleeve.
[0013] The utility model is further configured such that the protective device includes a protective cover, a buffer chamber and a through slot, the protective cover is installed on the outside of the grinding disc, the buffer chamber is arranged above the protective cover, and the through slot is opened at the bottom of the buffer chamber. The setting of the protective device effectively prevents the grinding liquid from splashing everywhere.
[0014] The utility model is further configured that a flow cavity is provided below the protective cover, and the flow cavity is provided between the grinding disc and the protective cover.
[0015] The utility model is further configured that the grinding disc is provided with a through hole.
[0016] (III) Beneficial effects
[0017] Compared with the prior art, the utility model provides a ceramic grinding disc that is easy to assemble and has the following beneficial effects:
[0018] 1. The design of the protective device effectively prevents the splashing of the grinding liquid during operation. The installation of the protective cover and the setting of the buffer chamber form a closed space, so that the grinding liquid can flow in this space without splashing to the outside. The setting of the through groove and the flow cavity ensures that the grinding liquid can flow smoothly from the buffer chamber to the bottom of the grinding disc. At the same time, the design of the through hole allows the grinding liquid to be evenly distributed on the grinding disc, improving the grinding effect. This design not only reduces the waste of grinding liquid, but also improves the safety of operators.
[0019] 2. The quick-connect device makes the replacement of the grinding disc faster and more convenient. Through the cooperation of multiple parts such as the adapter set, and the spiral structure design of the movable rod and the clamping groove, the operator can quickly remove or install the grinding disc from the rotating shaft. This design reduces the time required to replace the grinding disc and improves production efficiency.
[0020] 3. The design of the limit mechanism ensures the accurate alignment and stability of the grinding disc during the replacement process. Through the cooperation of the adapter rod, adapter slot and other components, as well as the action of the push spring and the second spring, the stable installation of the grinding disc after replacement is guaranteed, ensuring the stability and consistency of the grinding effect. This design reduces errors during operation, improves the grinding quality, ensures the stability of the grinding disc after installation, and avoids loosening during high-speed rotation. BRIEF DESCRIPTION OF THE DRAWINGS
[0021] Figure 1 This is a schematic diagram of the overall structure of a ceramic grinding disc that is easy to assemble in the utility model;
[0022] Figure 2 This is a schematic diagram of the overall structure of the second angle in the utility model;
[0023] Figure 3 It is a schematic diagram of the cross-sectional structure in the utility model;
[0024] Figure 4 It is a structural schematic diagram of the quick-connect device and the limiting mechanism in the utility model;
[0025] Figure 5 It is a cross-sectional structural diagram of the quick-connect device and the limiting mechanism in the utility model;
[0026] Figure 6It is a structural schematic diagram of the quick-connect sleeve part of the utility model.
[0027] In the figure: 1. grinding disc; 2. rotating shaft; 3. limiting rod; 4. quick-connect rod; 5. threaded sleeve; 6. adapter sleeve; 7. quick-connect sleeve; 8. threaded cover; 9. pressing plate; 10. first spring; 11. fixed plate; 12. adapter rod; 13. push spring; 14. adapter groove; 15. movable plate; 16. matching block; 17. conical spring; 18. clamping groove; 19. movable rod; 20. slide rail; 21. slide groove; 22. second spring; 23. protective cover; 24. cache bin; 25. through groove; 26. flow cavity; 27. through hole; 40. pressing block. DETAILED DESCRIPTION
[0028] It should be noted that, in the absence of conflict, the embodiments and features in the embodiments of the present application can be combined with each other. The present utility model will be described in detail below with reference to the accompanying drawings and in combination with the embodiments.
[0029] It should be noted that, unless otherwise specified, all technical and scientific terms used in this application have the same meanings as commonly understood by ordinary technicians in the technical field to which this application belongs.
[0030] In the present invention, unless otherwise specified, directions such as "up" and "down" are usually used in reference to the directions shown in the drawings, or in reference to the vertical, perpendicular or gravity direction; similarly, for ease of understanding and description, "left" and "right" are usually used in reference to the left and right shown in the drawings; "inside" and "outside" refer to the inside and outside relative to the outline of each component itself, but the above-mentioned directions are not used to limit the present invention.
[0031] See also Figure 1-6A ceramic grinding disc 1 that is easy to assemble includes a grinding disc 1, which is characterized in that: a protective device is provided on the grinding disc 1, a rotating shaft 2 is provided on one side of the grinding disc 1, and a quick-connect device is connected to one end of the rotating shaft 2. The quick-connect device includes a limit rod 3, a quick-connect rod 4, a threaded sleeve 5, a clamping mechanism, an adapter sleeve 6, a quick-connect sleeve 7 and a threaded cover 8. The limit rod 3 is fixedly connected to one side of the threaded sleeve 5, the quick-connect rod 4 is fixedly connected to one end of the rotating shaft 2, the threaded sleeve 5 is detachably installed on one side of the quick-connect sleeve 7 through threads, the adapter sleeve 6 is movably sleeved on the outside of the quick-connect sleeve 7, the threaded cover 8 is detachably installed on the other end of the quick-connect sleeve 7 through threads, and a limited limit rod 4 is provided on the outside of the quick-connect rod 4. The positioning mechanism includes a pressing plate 9, a pressing block 40, a first spring 10, a fixed plate 11, an adapter rod 12, a push spring 13, an adapter groove 14, a movable plate 15 and a matching block 16. The pressing plate 9 is movably mounted on one side of the movable plate 15, and the two ends of the first spring 10 are respectively connected to the fixed plate 11 and the matching block 16. The fixed plate 11 is fixedly mounted on the outside of the quick-connect sleeve 7, the adapter rod 12 is fixedly connected to one side of the movable plate 15, the push spring 13 is movably mounted on the outside of the adapter rod 12, the adapter groove 14 is provided on the inner side of the adapter sleeve 6, the movable plate 15 is movably mounted on the outside of the quick-connect sleeve 7, and the matching block 16 is fixedly connected to the other side of the movable plate 15.
[0032] The clamping mechanism includes a conical spring 17, a clamping groove 18 and a movable rod 19. The clamping groove 18 is opened on the outside of the quick-connect rod 4. The movable rod 19 can be movably installed on the side wall of the quick-connect sleeve 7, and one end of the movable rod 19 is inserted into the clamping groove 18. The two ends of the conical spring 17 are respectively connected to the outside of the quick-connect sleeve 7 and the outside of the movable rod 19.
[0033] The clamping groove 18 is designed as a spiral structure, and a plurality of movable rods 19 are arranged along the direction of the thread line.
[0034] A slide rail 20 is disposed on the outer side of the quick-connect sleeve 7 , and a slide groove 21 is provided on the inner side of the pressing plate 9 and the matching inner side, and the slide groove 21 is adapted to the slide rail 20 .
[0035] A second spring 22 is disposed on the outer side of the quick-connect rod 4 , and the second spring 22 is movably disposed on the inner side of the quick-connect sleeve 7 .
[0036] In this embodiment, when the grinding disc 1 needs to be replaced, the pressing plate 9 is first pushed upward, and the pressing plate 9 will drive the pressing block 40 to slide along the slide rail 20 and the slide groove 21. Due to the special structural design of the pressing block 40 and the matching block 16, and the mutual limitation formed by the slide rail 20 and the slide groove 21, when the pressing block 40 is pressed down, the matching block 16 will drive the movable plate 15 and the adapter rod 12 to rotate in the corresponding direction, and at the same time, the matching block 16 will cooperate with the fixed plate 11 to squeeze the first spring 10. When the first spring 10 is compressed to the limit, the position of the adapter rod 12 corresponds to the position of the adapter groove 14, and then the adapter set 6 is pulled downward, the adapter set 6 will drive the adapter groove 14 to move, and then the adapter rod 12 will penetrate into the adapter groove 14, and at the same time The push spring 13 sleeved on the outside of the adapter rod 12 will be squeezed by the adapter sleeve 6 and the movable plate 15. When the push spring 13 is squeezed to the limit, the outside of the movable rod 19 is no longer limited by the inner wall of the adapter sleeve 6, and then the adapter sleeve 6 continues to be pulled downward. Due to the rounded structural design at one end of the movable rod 19 and the rounded structural design of the side wall of the clamping groove 18, and the conical spring 17 only provides a small reset force, the movable rod 19 is affected by the side wall of the clamping groove 18. The conical spring 17 is stretched, and the second spring 22 pushes the quick-connect sleeve 7 to disengage from the outside of the quick-connect rod 4, and then the quick-connect sleeve 7 drives the threaded sleeve 5 to move, so that the limit rod 3 set on one side of the threaded sleeve 5 is pulled out, and then the grinding disc 1 is removed. When the grinding disc 1 is replaced After completion, the grinding disc 1 is reinstalled back to its original position, and then the quick-connect sleeve 7 is again fitted onto the outside of the quick-connect rod 4, and the limiting rod 3 passes through the corresponding hole opened on the grinding disc 1. When the conical spring 17 drives the movable rod 19 to reset and insert it into the clamping groove 18, the adapter sleeve 6 is released, and the push spring 13 pushes the adapter sleeve 6 to reset, so that the inner wall of the adapter sleeve 6 limits the outside of the movable rod 19 again to prevent the movable rod 19 from moving. At the same time, the second spring 22 pushes the quick-connect rod 4, so that the movable rod 19 is more firmly clamped in the clamping groove 18, and then the pressing plate 9 is released. The first spring 10 pushes the matching block 16 to reset, and the matching block 16 pushes the pressing block 40 and the pressing plate 9 to reset. At the same time, the matching block 16 drives the movable plate 15 and the adapter sleeve 1 The rod 12 is reset, so that the position of the adapter rod 12 and the adapter groove 14 no longer correspond, so that the adapter rod 12 stably supports the adapter sleeve 6, thereby ensuring a stable connection, and then the adapter sleeve 6 is rotated, and the adapter sleeve 6 drives the quick-connect sleeve 7 to rotate through the cooperation of the slide rail 20 and the slide groove 21, and the quick-connect sleeve 7 will drive the various components on the outside to rotate. At the same time, the quick-connect sleeve 7 will drive the movable rod 19 to slide along the clamping groove 18. Since the clamping groove 18 is a spiral structure, the quick-connect sleeve 7 will drive the threaded sleeve 5 to move spirally, and then the threaded sleeve 5 will press the grinding disc 1. When the limit rod 3 is just inserted into the rotating shaft 2, the adapter sleeve 6 can be released, thereby realizing the rapid replacement of the grinding disc 1 and ensuring the stable installation of the grinding disc 1.
[0037] See also Figure 1-3 As an implementation method of the protective device: the protective device includes a protective cover 23, a cache bin 24 and a through slot 25, the protective cover 23 is installed on the outside of the grinding disc 1, the cache bin 24 is arranged above the protective cover 23, and the through slot 25 is opened at the bottom of the cache bin 24.
[0038] A flow chamber 26 is provided below the protective cover 23 , and the flow chamber 26 is arranged between the grinding disc 1 and the protective cover 23 .
[0039] A through hole 27 is formed on the grinding disc 1 .
[0040] More specifically, when the device needs to be used, the rotating shaft 2 is first driven by the external drive assembly to drive the protective cover 23 and the grinding disc 1 to rotate. In this process, the grinding liquid is transported to the buffer bin 24 through an external conveying device, and then flows into the flow cavity 26 formed between the protective cover 23 and the grinding disc 1 through the through groove 25 opened at the bottom of the buffer bin 24, and then flows into the bottom of the grinding disc 1 through a plurality of through holes 27 opened on the grinding disc 1, thereby effectively preventing the grinding liquid from splashing everywhere while ensuring the normal use of the grinding liquid.
[0041] In summary, when the overall equipment is in use or running: when the grinding disc 1 needs to be replaced, first push the pressing plate 9 upwards, the pressing plate 9 will drive the pressing block 40 to slide along the slide rail 20 and the slide groove 21, due to the special structural design of the pressing block 40 and the matching block 16, and the mutual limitation formed by the slide rail 20 and the slide groove 21, when the pressing block 40 is pressed down, the matching block 16 will drive the movable plate 15 and the adapter rod 12 to rotate in the corresponding direction, and at the same time, the matching block 16 will cooperate with the fixed plate 11 to squeeze the first spring 10, when the first spring 10 is compressed to the limit, the position of the adapter rod 12 corresponds to the position of the adapter groove 14, and then pull the adapter set 6 downward, the adapter set 6 will drive the adapter groove 14 to move, and then the adapter rod 12 will penetrate into the adapter When the push spring 13 is squeezed to the limit, the outer side of the movable rod 19 is no longer limited by the inner wall of the adapter sleeve 6, and then the adapter sleeve 6 is pulled downward. Due to the rounded corner structure design at one end of the movable rod 19 and the rounded corner structure design of the side wall of the clamping groove 18, and the conical spring 17 only provides a small reset force, the movable rod 19 is subjected to the side wall of the clamping groove 18. The conical spring 17 is stretched, and the second spring 22 pushes the quick-connect sleeve 7 to disengage from the outer side of the quick-connect rod 4, and then the quick-connect sleeve 7 drives the threaded sleeve 5 to move, so that the limit rod 3 set on one side of the threaded sleeve 5 is pulled out, and then the grinding disc 1 is removed. After the grinding disc 1 is replaced, the grinding disc 1 is reinstalled back to its original position, and then the quick-connect sleeve 7 is again fitted onto the outside of the quick-connect rod 4, and the limiting rod 3 passes through the corresponding hole opened on the grinding disc 1. When the conical spring 17 drives the movable rod 19 to reset and insert it into the clamping groove 18, the adapter sleeve 6 is released, and the push spring 13 pushes the adapter sleeve 6 to reset, so that the inner wall of the adapter sleeve 6 limits the outside of the movable rod 19 again to prevent the movable rod 19 from moving. At the same time, the second spring 22 pushes the quick-connect rod 4, so that the movable rod 19 is more firmly clamped in the clamping groove 18, and then the pressing plate 9 is released, and the first spring 10 pushes the matching block 16 to reset, and the matching block 16 pushes the pressing block 40 and the pressing plate 9 to reset, and at the same time, the matching block 16 drives the movable plate 15 and The adapter rod 12 is reset, so that the adapter rod 12 and the adapter groove 14 no longer correspond to each other, so that the adapter rod 12 can stably support the adapter sleeve 6, thereby ensuring a stable connection, and then the adapter sleeve 6 is rotated, and the adapter sleeve 6 drives the quick-connect sleeve 7 to rotate through the cooperation of the slide rail 20 and the slide groove 21, and the quick-connect sleeve 7 will drive the various components on the outside to rotate. At the same time, the quick-connect sleeve 7 will drive the movable rod 19 to slide along the clamping groove 18. Since the clamping groove 18 is a spiral structure, the quick-connect sleeve 7 will drive the threaded sleeve 5 to move spirally, and then the threaded sleeve 5 will press the grinding disc 1. When the limit rod 3 is just inserted into the rotating shaft 2, the adapter sleeve 6 can be released, thereby realizing the rapid replacement of the grinding disc 1 and ensuring the stable installation of the grinding disc 1.
[0042] When the device needs to be used, first drive the rotating shaft 2 through the external drive assembly to drive the protective cover 23 and the grinding disc 1 to rotate. In this process, the grinding liquid is transported to the buffer bin 24 through the external conveying equipment, and then flows into the flow cavity 26 formed between the protective cover 23 and the grinding disc 1 through the through groove 25 opened at the bottom of the buffer bin 24, and then flows into the bottom of the grinding disc 1 through the multiple through holes 27 opened on the grinding disc 1, thereby effectively preventing the grinding liquid from splashing everywhere while ensuring the normal use of the grinding liquid.
[0043] In all the schemes mentioned above, the connection between two parts can be selected according to actual conditions by welding, bolt and nut matching connection, bolt or screw connection or other well-known connection methods, which are not described here one by one. In the above, all fixed connections are preferably welded. Although the embodiments of the utility model have been shown and described, it can be understood by ordinary technicians in this field that various changes, modifications, substitutions and variations can be made to these embodiments without departing from the principle and spirit of the utility model. The scope of the utility model is defined by the attached claims and their equivalents.
Claims
1. A ceramic grinding disc that is easy to assemble, comprising a grinding disc (1), characterized in that: The grinding disc (1) is provided with a protective device. A rotating shaft (2) is provided on one side of the grinding disc (1). A quick-connect device is connected to one end of the rotating shaft (2). The quick-connect device comprises a limit rod (3), a quick-connect rod (4), a threaded sleeve (5), a clamping mechanism, an adaptor sleeve (6), a quick-connect sleeve (7) and a threaded cover (8). The limit rod (3) is connected to one side of the threaded sleeve (5). The threaded sleeve (5) is installed on one side of the quick-connect sleeve (7). The adaptor sleeve (6) is sleeved on the outside of the quick-connect sleeve (7). The threaded cover (8) is installed on the other end of the quick-connect sleeve (7). A limit mechanism is provided on the outside of the quick-connect rod (4). The limit mechanism comprises a pressing plate (9), a pressing block (40), a first pressing plate (9), a second pressing plate (10), a second pressing plate (11), a first pressing plate (12), a second pressing plate (13), a second pressing plate (14), a second pressing plate (15), a second pressing plate (16), a second pressing plate (17), a second pressing plate (18), a second pressing plate (19), a second pressing plate (20), a second pressing plate (21), a second pressing plate (22), a second pressing plate (23), a second pressing plate (24), a second pressing plate (25), a second pressing plate (26), a second pressing plate (27), a second pressing plate (28), a second pressing plate (29), a second pressing plate (30), a second pressing plate (31), a second pressing plate (32), a second pressing plate (33), a second pressing plate (34), a second pressing plate (35), a second pressing plate (36), a second pressing plate (37), a second pressing plate (38), a second pressing plate (39), a second pressing plate (41), a second pressing plate (42), a second pressing plate (43), a second pressing plate (44), a second pressing plate (5 A spring (10), a fixed plate (11), an adaptor rod (12), a push spring (13), an adaptor groove (14), a movable plate (15) and a matching block (16), wherein the pressing plate (9) is mounted on one side of the movable plate (15), the first spring (10) is connected to the fixed plate (11) and the matching block (16) respectively, the fixed plate (11) is mounted on the outside of the quick-connect sleeve (7), the adaptor rod (12) is connected to one side of the movable plate (15), the push spring (13) is sleeved on the outside of the adaptor rod (12), the adaptor groove (14) is opened on the inside of the adaptor sleeve (6), the movable plate (15) is sleeved on the outside of the quick-connect sleeve (7), and the matching block (16) is connected to the other side of the movable plate (15).
2. The ceramic grinding disc that is easy to assemble according to claim 1 is characterized in that: The clamping mechanism comprises a conical spring (17), a clamping groove (18) and a movable rod (19); the clamping groove (18) is arranged on the outside of the quick-connect rod (4); the movable rod (19) is movably mounted on the side wall of the quick-connect sleeve (7); one end of the movable rod (19) is inserted into the clamping groove (18); and two ends of the conical spring (17) are respectively connected to the outside of the quick-connect sleeve (7) and the outside of the movable rod (19).
3. The ceramic grinding disc that is easy to assemble according to claim 2 is characterized by: The clamping groove (18) is designed as a spiral structure, and the plurality of movable rods (19) are arranged along the direction of the thread line.
4. The ceramic grinding disc that is easy to assemble according to claim 3 is characterized by: The outer side of the quick-connect sleeve (7) is provided with a slide rail (20), and the inner sides of the pressing plate (9) and the matching sleeve are both provided with a slide groove (21), and the slide groove (21) is adapted to the slide rail (20).
5. The ceramic grinding disc that is easy to assemble according to claim 4 is characterized in that: A second spring (22) is provided on the outside of the quick-connect rod (4), and the second spring (22) is movably arranged on the inside of the quick-connect sleeve (7).
6. A ceramic grinding disc that is easy to assemble according to any one of claims 1 to 5, characterized in that: The protective device comprises a protective cover (23), a buffer chamber (24) and a through slot (25); the protective cover (23) is mounted on the outside of the grinding disc (1); the buffer chamber (24) is arranged above the protective cover (23); and the through slot (25) is provided at the bottom end of the buffer chamber (24).
7. The ceramic grinding disc that is easy to assemble according to claim 6 is characterized by: A flow chamber (26) is provided below the protective cover (23), and the flow chamber (26) is arranged between the grinding disc (1) and the protective cover (23).
8. The ceramic grinding disc that is easy to assemble according to claim 7 is characterized by: The grinding disc (1) is provided with a through hole (27).