Quick release device and polishing machine

Abstract

The utility model provides a quick dismounting device and a polishing machine. The quick dismounting device comprises a polishing machine body and a polishing assembly. The polishing assembly is detachably connected to the polishing machine body, the butt joint part and the quick release part are both connected to the shell, the butt joint part and the quick release part are arranged up and down, and the butt joint part is connected with the butt joint groove and is in positioning connection with the butt joint groove; when the butt joint part is connected with the butt joint groove, the quick release part is inserted into the locking groove, and the quick release part locks the rotation of the shell, is located above the locking boss and is limited by the locking boss in the vertical direction, so that the quick release part is locked into the locking groove; or when the butt joint part is connected with the butt joint groove, the quick release part and the locking boss are arranged in a staggered mode along with rotation of the shell and are not limited by the locking boss, so that the quick release part is separated from the locking groove, and position switching of the quick release part relative to the locking boss is achieved through rotation of the shell; the polishing assembly can be quickly disassembled relative to the polishing machine body.

Description

Technical Field

[0001] The utility model relates to the technical field of polishing machines, in particular to a quick-release device and a polishing machine. Background Art

[0002] With the development of technology, a polishing machine is a power tool that uses an electric motor to drive a transmission mechanism and drives a polishing working unit connected to an output shaft to perform processing operations. It is mainly used for polishing, grinding and other operations on the paint surfaces of equipment such as automobiles and ships, so as to repair uneven paint surfaces such as scratches and cracks, and improve the aesthetic feeling and service life of the paint surface.

[0003] In the prior art, the existing polishing machine includes a polishing machine main body and a polishing component. The polishing component is connected to the polishing machine main body, and the polishing component is fixed to the polishing machine main body by screws. Therefore, when disassembling the polishing component relative to the polishing machine main body, multiple screws need to be disassembled, resulting in poor replacement convenience of the existing polishing machine. Summary of the Utility Model

[0004] The purpose of the utility model is to provide a quick-release device and a polishing machine. The polishing machine main body is provided with a docking groove and a locking groove. The docking groove is located above the locking groove, and the docking groove communicates with the locking groove in the up and down direction; a locking boss is convexly provided on the inner side wall of the locking groove; the polishing component is detachably connected to the polishing machine main body. The polishing component includes a housing, a docking part and a quick-release part. The docking part and the quick-release part are both connected to the housing. The docking part and the quick-release part are arranged up and down. The docking part docks with the docking groove and is positioned and connected with the docking groove; when the docking part docks with the docking groove, the quick-release part is inserted into the locking groove. The quick-release part is located above the locking boss due to the rotation of the housing and is restricted by the locking boss in the up and down direction, so that the quick-release part is locked in the locking groove; or, when the docking part docks with the docking groove, the quick-release part is misaligned with the locking boss as the housing rotates and is not restricted by the locking boss, so that the quick-release part is disengaged from the locking groove, so as to realize the position switching of the quick-release part relative to the locking boss through the rotation of the housing, and then quickly switch the state of the quick-release part relative to the locking boss, thereby realizing the quick-release function of the polishing component relative to the polishing machine main body and improving the replacement convenience of the polishing machine.

[0005] To achieve the above object, the utility model provides the following technical solutions:

[0006] A quick-release device is applied to a polishing machine. The quick-release device includes:

[0007] A polishing machine main body, which is provided with a docking groove and a locking groove. The docking groove is located above the locking groove, and the docking groove communicates with the locking groove in the up and down direction; a locking boss is convexly provided on the inner side wall of the locking groove;

[0008] A polishing component is detachably connected to the main body of the polishing machine. The polishing component includes a housing, a docking part, and a quick-release part. The docking part and the quick-release part are both connected to the housing. The docking part and the quick-release part are arranged vertically. The docking part docks with the docking groove and is positioned and connected to the docking groove.

[0009] When the docking part docks with the docking groove, the quick-release part is inserted into the locking groove. The quick-release part is located above the locking boss due to the rotation of the housing and is restricted by the locking boss in the vertical direction, so that the quick-release part is locked in the locking groove.

[0010] Or, when the docking part docks with the docking groove, the quick-release part is misaligned with the locking boss as the housing rotates and is not restricted by the locking boss, so that the quick-release part disengages from the locking groove.

[0011] Optionally, there are multiple locking bosses, and the multiple locking bosses are arranged at intervals along the circumferential direction of the locking groove.

[0012] A quick-release groove is formed between two adjacent locking bosses.

[0013] When the quick-release part is misaligned with the locking boss as the housing rotates, the quick-release part passes through the quick-release groove and disengages from the locking groove in the vertical direction.

[0014] Optionally, the quick-release part is located on the circumferential side of the docking part and protrudes outward. The quick-release part has a clearance fit with the quick-release groove and can pass through the quick-release groove.

[0015] Optionally, the quick-release groove is located below the locking groove and is in communication with the locking groove in the vertical direction. The number of quick-release grooves is adapted to the number of quick-release parts.

[0016] Optionally, the locking groove is an annular groove and is located below the docking groove.

[0017] Optionally, a limiting structure for restricting the relative rotation of the quick-release part in the locking groove is further provided on the polishing machine main body. The limiting structure is arranged in the installation channel of the polishing machine main body and can move in the installation channel after being stressed. The limiting structure includes a pressing part, a locking part, and a reset part. A pressing portion is arranged on the side of the pressing part away from the docking groove. The pressing portion is located at the external entrance of the installation channel. The two ends of the reset part are respectively connected to the side of the pressing part close to the docking groove and the inside of the polishing machine main body. The locking part is flexibly connected to the side of the pressing part close to the docking groove and can move upward when the lower part of the pressing part is stressed. A downward protrusion buckle is provided at one end of the locking part away from the pressing part. A limiting groove corresponding to the position of the locking part is provided on the upper part of the quick-release part. When the quick-release part moves in the locking groove, the limiting groove is driven to move, and the locking is achieved when the buckle enters the corresponding limiting groove. When the pressing part is stressed and moves into the installation channel, the locking part disengages from the limiting groove.

[0018] Optionally, an upward and inward inclined first inclined surface is provided at the lower end of the buckle, and an upward and inward inclined second inclined surface is provided at the bottom of the limiting groove. When the pressing part is stressed and moves into the installation channel, the first inclined surface on the locking part moves along the second inclined surface, causing the buckle to disengage from the limiting groove.

[0019] Optionally, the polishing assembly further includes a transmission module and a polishing part. One end of the transmission module is connected to the docking part, and the other end is connected to the polishing part, and transmits the power of the docking part to the polishing part, so that the polishing part rotates relative to the housing and is used for polishing an object.

[0020] Optionally, an LED light strip is provided on the polishing assembly. The LED light strip is connected to the outer peripheral side of the housing and is used for outputting light.

[0021] A polishing machine includes the quick-release device described above.

[0022] Compared with the prior art, the beneficial effects of the present utility model are:

[0023] The present utility model provides a quick-release device and a polishing machine. The main body of the polishing machine is provided with a docking groove and a locking groove. The docking groove is located above the locking groove, and the docking groove communicates with the locking groove in the up-and-down direction. A locking boss protrudes from the inner side wall of the locking groove. The polishing assembly is detachably connected to the main body of the polishing machine. The polishing assembly includes a housing, a docking portion, and a quick-release portion. The docking portion and the quick-release portion are both connected to the housing. The docking portion and the quick-release portion are arranged vertically. The docking portion docks with the docking groove and is positioned and connected to the docking groove. When the docking portion docks with the docking groove, the quick-release portion is inserted into the locking groove. The quick-release portion is located above the locking boss due to the rotation of the housing and is restricted by the locking boss in the up-and-down direction, so that the quick-release portion is locked in the locking groove. Or, when the docking portion docks with the docking groove, the quick-release portion is misaligned with the locking boss as the housing rotates and is not restricted by the locking boss, so that the quick-release portion is disengaged from the locking groove. Thus, the position switching of the quick-release portion relative to the locking boss is realized by the rotation of the housing, and then the state of the quick-release portion relative to the locking boss is quickly switched, thereby realizing the quick-release function of the polishing assembly relative to the main body of the polishing machine and improving the replacement convenience of the polishing machine. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] In order to more clearly illustrate the technical solutions in the embodiments of the present application, the following will briefly introduce the drawings required for the description of the embodiments. Obviously, the drawings in the following description are only some embodiments of the present application. For those skilled in the art, without creative efforts, other drawings can be obtained based on these drawings.

[0025] In order to more completely understand the present application and its beneficial effects, the following will be described in conjunction with the drawings. Among them, the same reference numerals represent the same parts in the following description.

[0026] Figure 1 FIG. 12 shows a schematic diagram of a quick-release device according to an embodiment of the present application.

[0027] Figure 2 FIG. 16 shows an exploded view of a quick-release device according to an embodiment of the present application.

[0028] Figure 3 FIG. 20 shows a schematic diagram of the main body of a polishing machine of a quick-release device according to an embodiment of the present application.

[0029] Figure 4 FIG. 24 shows a schematic diagram of a polishing assembly of a quick-release device according to an embodiment of the present application.

[0030] Figure 5 FIG. 28 shows an exploded view of a polishing assembly of a quick-release device according to an embodiment of the present application.

[0031] Figure 6Shows a schematic diagram of the limit structure of the quick-release device according to an embodiment of the present application.

[0032] Reference numeral

[0033] 100, quick-release device;

[0034] 10, polishing machine main body; 10a, docking groove; 10b, locking groove; 11, locking boss; 11a, quick-release groove; limit structure 12; pressing member 121; locking member 122; buckle 1221;

[0035] 20, polishing assembly; 21, housing; 22, docking portion; 23, quick-release portion; 24, transmission module; 241, first cam; 242, second cam; 25, polishing member; 26, LED light strip; limit groove 27. Detailed implementation manners

[0036] Next, the technical solutions in the embodiments of the present application will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present application. Obviously, the described embodiments are only a part of the embodiments of the present application, rather than all the embodiments. Based on the embodiments in the present application, all other embodiments obtained by those skilled in the art without making creative efforts belong to the scope of protection of the present application.

[0037] Please refer to the attached Figures 1 to 5 , the embodiment of the present application provides a quick-release device 100. The quick-release device 100 is applied to a polishing machine. The quick-release device 100 is used to achieve quick release of the polishing assembly 20. The quick-release device 100 includes a polishing machine main body 10 and a polishing assembly 20. The polishing assembly 20 is located below the polishing machine main body 10.

[0038] In the embodiment of the present application, the polishing machine main body 10 is provided with a docking groove 10a and a locking groove 10b. The docking groove 10a is located above the locking groove 10b. The docking groove 10a communicates with the locking groove 10b in the up and down direction; a locking boss 11 protrudes from the inner side wall of the locking groove 10b.

[0039] In the embodiment of the present application, the polishing assembly 20 is disposed below the polishing machine main body 10. The polishing assembly 20 is detachably connected to the polishing machine main body 10 so that the polishing assembly 20 can be connected to or detached from the polishing machine main body 10. The polishing assembly 20 includes a housing 21, a docking portion 22, and a quick-release portion 23. The docking portion 22 and the quick-release portion 23 are both connected to the housing 21. The docking portion 22 and the quick-release portion 23 are arranged up and down. The docking portion 22 docks with the docking groove 10a and is positioned and connected to the docking groove 10a.

[0040] At this time, when the docking portion 22 docks with the docking groove 10a, the quick-release portion 23 is inserted into the locking groove 10b. As the housing 21 rotates, the quick-release portion 23 is located above the locking boss 11 and is restricted by the locking boss 11 in the vertical direction, so that the quick-release portion 23 is locked to the locking groove 10b. Alternatively, when the docking portion 22 docks with the docking groove 10a, the quick-release portion 23 is misaligned with the locking boss 11 as the housing 21 rotates and is not restricted by the locking boss 11, so that the quick-release portion 23 is disengaged from the locking groove 10b. Thus, the position switching of the quick-release portion 23 relative to the locking boss 11 is achieved by rotating the housing 21, and then the state of the quick-release portion 23 relative to the locking boss 11 is quickly switched, thereby realizing the quick-release function of the polishing assembly 20 relative to the polishing machine main body 10.

[0041] Among them, there are multiple locking bosses 11, and the multiple locking bosses 11 are arranged at intervals along the circumferential direction of the locking groove 10b. By arranging multiple locking bosses 11, the locking effect of the locking bosses 11 relative to the quick-release portion 23 is increased, so that the polishing assembly 20 can be kept stable under the support of the multiple locking bosses 11. A quick-release groove 11a is formed between two adjacent locking bosses 11. When the quick-release portion 23 is misaligned with the locking boss 11 as the housing 21 rotates, the quick-release portion 23 passes through the quick-release groove 11a and is disengaged from the locking groove 10b in the vertical direction to realize the separation of the polishing assembly 20 from the polishing machine main body 10.

[0042] In addition, the quick-release portion 23 is located on the circumferential side of the docking portion 22 and protrudes outward. The quick-release portion 23 is in clearance fit with the quick-release groove 11a and can pass through the quick-release groove 11a, so that the quick-release portion 23 can move relative to the quick-release groove 11a in the vertical direction, thereby facilitating the movement of the polishing assembly 20 relative to the polishing machine main body 10.

[0043] At this time, the quick-release groove 11a is located below the locking groove 10b and is communicated with the locking groove 10b in the vertical direction. The number of the quick-release grooves 11a is adapted to the number of the quick-release portions 23, so that the quick-release portions 23 can enter the locking groove 10b from the bottom up through the quick-release grooves 11a, thereby facilitating the locking of the quick-release portions 23 with the locking bosses 11. Or, the quick-release portions 23 move from the top down through the locking groove 10b and the quick-release grooves 11a to the external environment, thereby facilitating the separation of the quick-release portions 23 from the locking bosses 11. Optionally, the locking groove 10b is an annular groove and is located below the docking groove 10a.

[0044] In addition, the quick-release part 23 is connected with an elastic member. When the quick-release part 23 is inserted into the locking groove 10b, both ends of the elastic member respectively contact the quick-release part 23 and the polishing machine main body 10, and apply an elastic acting force to the quick-release part 23. The quick-release part 23 elastically contacts the locking boss 11 under the action of the elastic acting force, so that the connection between the polishing assembly 20 and the polishing machine main body 10 is realized through the restriction between the quick-release part 23 and the locking boss 11. Optionally, the elastic member is a spring.

[0045] In addition, the docking groove 10a is a hexagonal groove, and the docking part 22 is a hexagonal part. The inner contour of the docking groove 10a is adapted to the outer contour of the docking part 22, and a hexagonal docking structure is formed between the docking part 22 and the docking groove 10a, ensuring the docking stability between the docking part 22 and the docking groove 10a and improving the docking effect of the docking part 22 relative to the docking groove 10a.

[0046] In the embodiment of the present application, the polishing assembly 20 further includes a transmission module 24 and a polishing member 25. One end of the transmission module 24 is connected to the docking part 22, and the other end is connected to the polishing member 25, and conducts the power of the docking part 22 to the polishing member 25, so that the polishing member 25 rotates relative to the housing 21 and is used for polishing an object. The polishing machine main body 10 is provided with a motor, and the output end of the motor is connected to the docking part 22 and drives the docking part 22 to rotate, so that the polishing member 25 can rotate through the motor, the docking part 22, and the transmission module 24, thereby facilitating the adjustment of the position of the polishing member 25. The polishing member 25 rotates relative to the housing 21 and performs a cam-type rotation, so that the polishing member 25 can polish the polished object during rotation.

[0047] At this time, the transmission module 24 is at least one of a boss transmission module, a belt transmission module, a synchronous belt transmission module, or a gear transmission module. When the transmission module 24 is a boss transmission module, the boss transmission module 24 includes a first cam 241 and a second cam 242. The first cam 241 is connected to the docking part 22, the first cam 241 and the second cam 242 are arranged staggeredly, the first cam 241 is inserted into the second cam 242, and the polishing member 25 is connected to the second cam 242, so that the docking part 22 can realize the rotation of the polishing member 25 through the first cam 241 and the second cam 242.

[0048] In the embodiments of the present application, a limiting structure 12 for restricting the relative rotation of the quick-release part of the polishing assembly in the locking groove of the polishing machine main body is further provided on one or both sides of the housing of the polishing machine main body. In this embodiment, two limiting structures 12 are symmetrically arranged on both sides of the housing of the polishing machine main body. Of course, only one can also achieve the same effect. Specifically, an installation channel 101 is arranged on the housing of the polishing machine main body, and the limiting structure 12 can move in the installation channel after being stressed. The limiting structure 12 includes a pressing member 121, a locking member 122, and a reset member. The pressing member 121 is arranged on the pressing part away from the docking groove side, and the pressing part is located at the external entrance of the installation channel. Both ends of the reset member are respectively connected to the side of the pressing member close to the docking groove and the inside of the housing of the polishing machine main body, and are used to push the pressing member to move back to the external entrance of the installation channel after the external force applied to the pressing part is withdrawn. The locking member 122 is flexibly connected to the side of the pressing member 121 close to the docking groove and can move upward when the lower part of the pressing member is stressed. A downward protruding buckle 1221 is provided at one end of the locking member 122 away from the pressing member, and an upward and inward inclined first inclined surface is provided at the lower end of the buckle 1221. A limiting groove 27 corresponding to the position of the locking member is provided on the upper part of the quick-release part, and an upward and inward inclined second inclined surface is provided at the bottom of the limiting groove 27. When the quick-release part moves in the locking groove, it drives the limiting groove to move, and is locked when the buckle enters the corresponding limiting groove, restricting the quick-release part from continuing to move in the locking groove. When the pressing member is stressed and moves into the installation channel, the first inclined surface on the locking member moves along the second inclined surface, so that the buckle disengages from the limiting groove, and the quick-release part can continue to move in the locking groove.

[0049] When the docking part docks with the docking groove, the quick-release part is inserted into the locking groove, and the quick-release part is located above the locking boss due to the rotation of the housing and is restricted in the vertical direction by the locking boss, so that the quick-release part is locked in the locking groove;

[0050] Or, when the docking part docks with the docking groove, the quick-release part is misaligned with the locking boss as the housing rotates and is not restricted by the locking boss, so that the quick-release part disengages from the locking groove.

[0051] The polishing assembly 20 is provided with an LED light strip 26. The LED light strip 26 is connected to the outer peripheral side of the housing 21 and is used to output light, so that the LED light strip 26 is exposed to the external environment, thereby facilitating the LED light strip 26 to output light in the external environment, further improving the brightness of the external environment, and ensuring that the quick-release device 100 can be used at night. Optionally, the electrical energy of the LED light strip 26 is mainly provided by a power supply built in the polishing machine main body. When the polishing machine main body and the polishing assembly are in a docking state, the power supply built in the polishing machine main body conducts the electrical energy to the LED light strip 26 through a conductive member.

[0052] Working process: when the polishing assembly 20 is installed relative to the polishing machine body 10, the polishing assembly 20 is at the lower side of the polishing machine body 10, the docking part 22 is aligned with the docking groove 10a, the quick release part 23 is aligned with the quick release groove 11a, and the quick release part 23 enters the locking groove 10b from bottom to top through the quick release groove 11a. At the same time, the docking part 22 is inserted into the docking groove 10a. Then, the quick release part 23 rotates under the action of external force so that the quick release part 23 and the quick release groove 11a are staggered, thereby facilitating the quick release part 23 to be locked with the locking boss 11, so as to realize the installation of the polishing assembly 20 on the polishing machine body 10.

[0053] When the polishing assembly 20 is disassembled relative to the polishing machine body 10, the polishing assembly 20 is pushed upward, the quick-release part 23 disengages from the locking boss 11, and is staggered relative to the locking boss 11, the quick-release part 23 is aligned with the quick-release groove 11a, and the quick-release part 23 moves from top to bottom through the locking groove 10b and the quick-release groove 11a to the external environment. At the same time, the docking part 22 disengages from the docking groove 10a, so that the polishing assembly 20 is separated from the polishing machine body 10.

[0054] In another embodiment, a polishing machine includes a quick-release device 100 , where the quick-release device 100 is a part of the polishing machine, and the polishing machine is used to polish a polishing object.

[0055] Compared with the prior art, the beneficial effects of the utility model are:

[0056] The present utility model provides a quick-release device 100 and a polishing machine. The polishing machine main body 10 is provided with a docking groove 10a and a locking groove 10b. The docking groove 10a is located above the locking groove 10b, and the docking groove 10a communicates with the locking groove 10b in the up-and-down direction. A locking boss 11 protrudes from the inner side wall of the locking groove 10b. The polishing assembly 20 is detachably connected to the polishing machine main body 10. The polishing assembly 20 includes a housing 21, a docking portion 22, and a quick-release portion 23. The docking portion 22 and the quick-release portion 23 are both connected to the housing 21. The docking portion 22 and the quick-release portion 23 are arranged vertically. The docking portion 22 docks with the docking groove 10a and is positioned and connected to the docking groove 10a. When the docking portion 22 docks with the docking groove 10a, the quick-release portion 23 is inserted into the locking groove 10b. The quick-release portion 23 is located above the locking boss 11 as the housing 21 rotates and is restricted by the locking boss 11 in the up-and-down direction, so that the quick-release portion 23 is locked in the locking groove 10b. Or, when the docking portion 22 docks with the docking groove 10a, the quick-release portion 23 is misaligned with the locking boss 11 as the housing 21 rotates and is not restricted by the locking boss 11, so that the quick-release portion 23 is disengaged from the locking groove 10b. Thus, the position switching of the quick-release portion 23 relative to the locking boss 11 is realized by the rotation of the housing 21, and then the state of the quick-release portion 23 relative to the locking boss 11 is quickly switched, thereby realizing the quick-release function of the polishing assembly 20 relative to the polishing machine main body 10 and improving the replacement convenience of the polishing machine.

[0057] In the above embodiments, the descriptions of the respective embodiments have their own focuses. For the parts not detailed in a certain embodiment, reference may be made to the relevant descriptions of other embodiments.

[0058] In the description of the present application, the terms "first" and "second" are only used for descriptive purposes and cannot be construed as indicating or implying relative importance or implicitly specifying the quantity of the indicated technical features. Thus, the features defined with "first" and "second" may explicitly or implicitly include one or more features.

[0059] Specific examples are used in this article to elaborate on the principles and implementation manners of the present application. The descriptions of the above embodiments are only used to help understand the method and its core idea of the present application. At the same time, for those skilled in the art, according to the idea of the present application, there will be changes in the specific implementation manners and application scopes. In summary, the content of this specification should not be construed as a limitation to the present application.

Claims

1. A quick-release device, characterized in that, Applied to a polishing machine, the quick-release device includes: The polishing machine main body is provided with a docking groove and a locking groove. The docking groove is located above the locking groove, and the docking groove communicates with the locking groove in the vertical direction. A locking boss protrudes from the inner side wall of the locking groove. The polishing assembly is detachably connected to the polishing machine main body. The polishing assembly includes a housing, a docking portion, and a quick-release portion. The docking portion and the quick-release portion are both connected to the housing. The docking portion and the quick-release portion are arranged vertically. The docking portion docks with the docking groove and is positioned and connected to the docking groove. When the docking portion docks with the docking groove, the quick-release portion is inserted into the locking groove. The quick-release portion is located above the locking boss as the housing rotates and is restricted by the locking boss in the vertical direction, so that the quick-release portion is locked in the locking groove. Alternatively, when the docking portion docks with the docking groove, the quick-release portion is misaligned with the locking boss as the housing rotates and is not restricted by the locking boss, so that the quick-release portion disengages from the locking groove.

2. The quick-release device according to claim 1, characterized in that, There are multiple locking bosses, and the multiple locking bosses are arranged at intervals along the circumferential direction of the locking groove. A quick-release groove is formed between two adjacent locking bosses. When the quick-release portion is misaligned with the locking boss as the housing rotates, the quick-release portion passes through the quick-release groove and disengages from the locking groove in the vertical direction.

3. The quick-release device according to claim 2, characterized in that, The quick-release portion is located on the circumferential side of the docking portion and protrudes outward. The quick-release portion has a clearance fit with the quick-release groove and can pass through the quick-release groove.

4. The quick-release device according to claim 3, characterized in that, The quick-release groove is located below the locking groove and communicates with the locking groove in the vertical direction. The number of quick-release grooves is adapted to the number of quick-release portions.

5. The quick-release device according to claim 3, characterized in that, The locking groove is an annular groove and is located below the docking groove.

6. The quick-release device according to any one of claims 1-5, characterized in that, On the polishing machine main body, a limiting structure is also provided for restricting the relative rotation of the quick-release portion in the locking groove. The limiting structure is arranged in the installation channel of the polishing machine main body and can move in the installation channel after being stressed. The limiting structure includes a pressing member, a locking member, and a reset member. A pressing portion is arranged on the side of the pressing member away from the docking groove. The pressing portion is located at the external entrance of the installation channel. The two ends of the reset member are respectively connected to the side of the pressing member close to the docking groove and the inside of the polishing machine main body. The locking member is flexibly connected to the side of the pressing member close to the docking groove and can move upward when the lower part of the pressing member is stressed. A downward protrusion, a buckle, is provided at one end of the locking member away from the pressing member. A limiting groove corresponding to the position of the locking member is provided at the upper part of the quick-release portion. When the quick-release portion moves in the locking groove, it drives the limiting groove to move, and is locked when the buckle enters the corresponding limiting groove. When the pressing member is stressed and moves into the installation channel, the locking member disengages from the limiting groove.

7. The quick-release device according to claim 6, characterized in that, An upward and inward inclined first inclined surface is provided at the lower end of the buckle, and an upward and inward inclined second inclined surface is provided at the bottom of the limiting groove. When the pressing member is stressed and moves into the installation channel, the first inclined surface on the locking member moves along the second inclined surface so that the buckle disengages from the limiting groove.

8. The quick-release device according to claim 1, characterized in that, The polishing assembly further includes a transmission module and a polishing member. One end of the transmission module is connected to the docking portion, and the other end is connected to the polishing member, and transmits the power of the docking portion to the polishing member, so that the polishing member rotates relative to the housing and is used for polishing an object.

9. The quick-release device according to claim 7, wherein, The polishing assembly is provided with an LED light strip, and the LED light strip is connected to the outer peripheral side of the housing and is used for outputting light.

10. A polishing machine, characterized in that, It includes the quick-release device according to any one of claims 1 to 9.

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