A quick-change device and a grinding device for louvers.

Abstract

This utility model belongs to the field of louver assembly technology, and discloses a quick-change device and a grinding device for louvers. The quick-change device includes a support, a snap-fit ​​structure, and a movable part. The support has a positioning post for assembling louvers at its center facing the louver direction. The positioning post has a first mounting hole at its center, which is axially arranged along the positioning post. The positioning post has a second mounting hole in the radial direction that communicates with the first mounting hole. The snap-fit ​​structure is movably installed in the second mounting hole, and the movable part is movably installed in the first mounting hole. The movable part has a snap-fit ​​part. This quick-change device can quickly install and remove louvers. It has a simple structure and is easy to operate.

Description

Technical Field

[0001] This utility model relates to the field of grinding device assembly technology, and in particular to a quick-change device for louvers and a grinding device. Background Technology

[0002] When installing louvers on a grinder, the small wrench that comes with the grinder is usually used to unscrew the retaining sleeve that secures the louvers before the louvers can be disassembled and replaced. However, the small wrench that comes with the grinder is too small, which often leads to it being lost and unable to be replaced. Furthermore, during the disassembly process, if too much force is used when tightening the retaining sleeve, it can easily cause injury to the operator.

[0003] In summary, the installation and replacement of louvers in the existing technology are relatively troublesome, slow, and the installation auxiliary parts are easy to lose, resulting in high costs and safety risks. Utility Model Content

[0004] The purpose of this invention is to provide a quick-change device for louvers, which can quickly install and remove louvers, and has a simple structure and is easy to operate.

[0005] The purpose of this utility model is also to provide a grinding device, which includes a quick-change device and louvers. The louvers are easy to install and disassemble when used in conjunction with the quick-change device.

[0006] To achieve this objective, the present invention adopts the following technical solution:

[0007] This utility model discloses a quick-change device for louvers, comprising: a support member, wherein a positioning post for assembling louvers is provided at the center of the support member facing the direction of the louvers, the positioning post having a first mounting hole at its center, the first mounting hole being arranged axially along the positioning post, and a second mounting hole communicating with the first mounting hole in the radial direction of the positioning post; a snap-fit ​​structure, the snap-fit ​​structure being movably installed in the second mounting hole; and a movable member, the movable member being movably installed in the first mounting hole, the movable member having a snap-fit ​​portion; wherein: the movable member can move within the first mounting hole under the action of an external force; when the movable member moves to the point where the snap-fit ​​portion corresponds to the snap-fit ​​structure, pressing the snap-fit ​​structure causes the snap-fit ​​structure to retract toward the second mounting hole; when the movable member moves to the point where the snap-fit ​​structure disengages from the snap-fit ​​portion, the movable member can push the snap-fit ​​structure out of the second mounting hole.

[0008] In some embodiments, the snap-fit ​​portion includes a groove, and the movable member further includes a stop groove. The stop groove communicates with the groove, and the depth of the stop groove is less than the depth of the groove. When the bottom wall of the stop groove abuts against the snap-fit ​​structure, the side of the snap-fit ​​structure opposite to the stop groove extends out of the second mounting hole.

[0009] In some embodiments, an elastic element is further included, which is installed in the first mounting hole, with one end of the elastic element abutting against the movable element and the other end abutting against the support element.

[0010] In some specific embodiments, the support member further includes a support portion and an extension portion, the positioning post and the extension portion are respectively disposed on both sides of the support portion, the support portion is used to support the louver; the support portion includes a support plate and a support protrusion ring connected to the support plate, the diameter of the support protrusion ring gradually increases in the direction away from the support plate.

[0011] In some specific embodiments, the first mounting hole penetrates the extension, the first mounting hole includes a first hole segment and a second hole segment with successively increasing diameters, the second mounting hole communicates with the first hole segment, the elastic member is installed in the extension, and one end of the elastic member abuts against the first step surface formed by the first hole segment and the second hole segment.

[0012] In some specific embodiments, the first mounting hole further includes a third hole segment, the diameter of which is larger than that of the second hole segment. The movable member includes a first shaft segment and a second shaft segment, the first shaft segment being fitted with the second hole segment and the first hole segment, and the second shaft segment being fitted with the third hole segment. The other end of the elastic member abuts against the second step surface formed by the first shaft segment and the second shaft segment.

[0013] In some specific embodiments, the snap-fit ​​structure includes: a spring clip, one end of which can extend into the first mounting hole and abut against the movable member; and a fixing member, which passes through the other end of the spring clip and is fixed in the second mounting hole.

[0014] In some specific embodiments, the spring clip includes a first part and a second part, the radial dimension of the first part is greater than the radial dimension of the second part, and the first part can abut against the movable member; the second mounting hole includes a fourth hole segment and a fifth hole segment that are interconnected, the diameter of the fifth hole segment is greater than the diameter of the fourth hole segment, and the fastener is sleeved on the second part and fixed to the fifth hole segment.

[0015] In some more specific embodiments, the first portion has a first curved surface at the end opposite to the second portion, the snap-fit ​​portion has a second curved surface that matches the first curved surface, and the second portion has a third curved surface at the end opposite to the first portion.

[0016] This utility model also discloses a polishing device, including louvers and a quick-change device for the louvers, wherein the louvers are detachably installed on the quick-change device.

[0017] In some embodiments, the louver has a positioning hole, the positioning hole is a polygonal hole, and the cross section of the positioning post is a polygon that matches the shape of the positioning hole.

[0018] The beneficial effects of this utility model are as follows: When installing the louver, the snap-fit ​​part is set with a snap-fit ​​structure. The louver is inserted into the positioning post. By applying external force to the louver, it can press the snap-fit ​​structure, causing the snap-fit ​​structure to retract. Continuing to press the louver causes it to move along the extension direction of the positioning post. When the louver is installed in place, the driving component moves the movable part until the snap-fit ​​structure disengages from the snap-fit ​​part. At this time, the movable part can drive the snap-fit ​​structure to extend out of the second mounting hole. The extended snap-fit ​​structure can then prevent the louver from disengaging from the positioning post. When it is necessary to remove the louver, the driving component is set with the snap-fit ​​part corresponding to the snap-fit ​​structure. Pressing the snap-fit ​​structure allows it to retract, and then the louver can be removed from the positioning post. Through the above method, the structure is simple, the operation is convenient, and the safety is high.

[0019] Additional aspects and advantages of this invention will be set forth in part in the description which follows, and in part will be obvious from the description, or may be learned by practice of the invention. Attached Figure Description

[0020] Figure 1 This is a structural schematic diagram of a quick-change device for louvers according to an embodiment of the present invention;

[0021] Figure 2 This is a cross-sectional view of a quick-change device for louvers according to an embodiment of the present invention;

[0022] Figure 3 This is a cross-sectional view of the quick-change device for louvers and the louver mating structure according to an embodiment of the present invention.

[0023] Figure label:

[0024] 100. Support component; 101. First mounting hole; 1011. First hole segment; 1012. Second hole segment; 1013. Third hole segment; 102. Second mounting hole; 1021. Fourth hole segment; 1022. Fifth hole segment; 110. Positioning post; 120. Support part; 121. Support plate; 122. Support protrusion ring; 130. Extension part;

[0025] 200. Snap-fit ​​structure; 210. Spring-loaded buckle; 211. First part; 2111. First curved surface; 212. Second part; 2121. Third curved surface; 220. Fastener;

[0026] 300, Moving part; 310, First shaft section; 311, Groove; 3111, Second curved surface; 312, Stop groove; 320, Second shaft section; 400, Elastic part; 500, Louver; 510, Positioning hole. Detailed Implementation

[0027] The present invention will now be described in further detail with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the present invention and not intended to limit it. Furthermore, it should be noted that, for ease of description, the accompanying drawings show only the parts relevant to the present invention, not the entire structure.

[0028] In the description of this utility model, unless otherwise explicitly specified and limited, the terms "connected," "linked," and "fixed" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; 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; they can refer to the internal communication of two components or the interaction between two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.

[0029] In the description of this embodiment, the terms "upper," "lower," "left," "right," "front," and "rear," etc., refer to the orientation or positional relationship shown in the accompanying drawings. They are used only for ease of description and simplification of operation, 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. Therefore, they should not be construed as limitations on this utility model. In addition, the terms "first" and "second" are only used for distinction in description and have no special meaning.

[0030] This utility model discloses a quick-change device for louvers (hereinafter referred to as the quick-change device for ease of description). The quick-change device includes a support member 100, a snap-fit ​​structure 200, and a movable member 300. A positioning post 110 for assembling the louvers 500 is provided at the center of the support member 100 facing the louvers 500. A first mounting hole 101 is provided at the center of the positioning post 110, and the first mounting hole 101 is arranged axially along the positioning post 110. A second mounting hole 102 communicating with the first mounting hole 101 is provided radially on the positioning post 110. The movable member 300 is movably installed in the first mounting hole 101 and has a snap-fit ​​portion. An elastic member 400 is installed in the first mounting hole 101, with one end of the elastic member 400 abutting against the movable member 300 and the other end abutting against the support member 100. Understandably, when installing the louver 500, the snap-fit ​​part is aligned with the snap-fit ​​structure 200. The louver 500 is fitted into the positioning post 110. External force is applied to the louver 500 to press against the snap-fit ​​structure 200, causing it to retract. Continuous pressing causes the louver 500 to move along the extension direction of the positioning post 110. Once the louver 500 is in place, the driving component 300 moves until the snap-fit ​​structure 200 disengages from the snap-fit ​​part. At this point, the driving component 300 can drive the snap-fit ​​structure 200 to extend out of the second mounting hole 102, preventing the louver 500 from disengaging from the positioning post 110. When it is necessary to disassemble the louver 500, the driving component 300 aligns the snap-fit ​​part with the snap-fit ​​structure 200. Pressing the snap-fit ​​structure 200 retracts it, and then the louver 500 can be disengaged from the positioning post 110. This method is simple in structure, convenient in operation, and highly safe.

[0031] refer to Figure 2 As shown, the engaging part includes a groove 311, and the movable part 300 also includes a stop groove 312. The stop groove 312 communicates with the groove 311, and the depth of the stop groove 312 is less than the depth of the groove 311. When the bottom wall of the stop groove 312 abuts against the engaging structure 200, the side of the engaging structure 200 opposite to the stop groove 312 protrudes from the second mounting hole 102. It can be understood that by providing the stop groove 312 on the surface of the movable part 300, in actual operation, the presence of the stop groove 312 can limit the stroke of the movable part 300 driven by external force to rebound, and can ensure that the engaging structure 200 is stably held in the position protruding from the second mounting hole 102, without jamming.

[0032] refer to Figure 2As shown, the quick-change device also includes an elastic element 400, which is installed in the first mounting hole 101. One end of the elastic element 400 abuts against the movable element 300, and the other end abuts against the support element 100. Understandably, when installing the louver 500, the movable part 300 is pressed until it corresponds to the snap-fit ​​structure 200. At this time, the elastic part 400 is in a compressed state, and the louver 500 is inserted into the positioning post 110. By applying external force to the louver 500, it can press the snap-fit ​​structure 200 to retract. The louver 500 is continuously pressed so that it moves along the extension direction of the positioning post 110. When the louver 500 is installed in place, the external force is released and the elastic part 400 is reset. The elastic part 400 drives the movable part 300 to move until the snap-fit ​​structure 200 disengages from the snap-fit ​​part. At this time, the movable part 300 can drive the snap-fit ​​structure 200 to extend out of the second mounting hole 102. The extended snap-fit ​​structure 200 can then prevent the louver 500 from disengaging from the positioning post 110. When it is necessary to disassemble the louver 500, the driving movable part 300 makes the snap-fit ​​part correspond to the snap-fit ​​structure 200. At this time, press the snap-fit ​​structure 200 to make it retract, and then the louver 500 can be disengaged from the positioning post 110.

[0033] In other implementations, the elastic element 400 may not be provided. In this case, it is sufficient to ensure that the movable element 300 can move within the first mounting hole 101 under the action of external force. For example, a motor may be provided to drive the movable element 300 to move within the first mounting hole 101, or a thread may be provided to enable the movable element 300 to move within the first mounting hole 101 through rotation, or other transmission structures may be provided, as long as the movable element 300 can move within the first mounting hole 101.

[0034] refer to Figure 2 As shown, the support member 100 also includes a support portion 120 and an extension portion 130. The positioning post 110 and the extension portion 130 are disposed on both sides of the support portion 120, which supports the louver 500. It can be understood that, with the support portion 120, when installing the louver 500, after fitting the louver 500 into the positioning post 110, the louver 500 is pushed to move until it abuts against the support portion 120, thus releasing the movable part 300. The louver 500 is then locked between the locking structure 200 and the support portion 120, providing good stability and ensuring the stable execution of the grinding process. The added extension portion 130 provides space for installing the elastic element 400, making the entire support member 100 form a T-shape, which helps reduce the weight of the support member 100 and facilitates the use of the quick-change device.

[0035] Optionally, the support portion 120 includes a support plate 121 and a support ring 122 connected to the support plate 121. The diameter of the support ring 122 gradually increases in the direction away from the support plate 121. It is understood that the rear side of the louver 500 is typically tapered. In this embodiment, the support plate 121 abuts against the louver 500, and the support ring 122 assists in supporting and limiting the louver 500, ensuring the connection stability of the louver 500 within the support member 100, thereby facilitating the grinding process.

[0036] refer to Figure 2 As shown, the first mounting hole 101 penetrates the extension 130 and includes a first hole segment 1011 and a second hole segment 1012 with successively increasing diameters. The second mounting hole 102 communicates with the first hole segment 1011. The elastic member 400 is installed inside the extension 130, and one end of the elastic member 400 abuts against the first step surface formed by the first hole segment 1011 and the second hole segment 1012. It can be understood that by setting the first mounting hole 101 as a stepped hole, when installing the elastic member 400, it is only necessary to put it on the movable member 300 and then insert it into the first mounting hole 101. The inner sidewall of the first mounting hole 101 does not need to be provided with a protruding structure for fixing the elastic member 400. The structure is simple and easy to assemble. Moreover, the contact area between the first step surface and the elastic member 400 is large, which facilitates the compression of the elastic member 400 when the movable member 300 is pressed.

[0037] Optionally, the first mounting hole 101 further includes a third hole segment 1013, the diameter of which is larger than that of the second hole segment 1012. The movable member 300 includes a first shaft segment 310 and a second shaft segment 320. The first shaft segment 310 is fitted into the second hole segment 1012 and the first hole segment 1011, and the second shaft segment 320 is fitted into the third hole segment 1013. The other end of the elastic member 400 abuts against the second stepped surface formed by the first shaft segment 310 and the second shaft segment 320. It can be understood that by setting the movable member 300 as a stepped shaft, when installing the elastic member 400, it is only necessary to fit it onto the movable member 300 with the other end abutting against the second stepped surface, and then insert it into the first mounting hole 101. The outer wall of the movable member 300 does not need to be provided with a protruding structure for fixing the elastic member 400. The structure is simple and easy to assemble. Moreover, the contact area between the second stepped surface and the elastic member 400 is large, which facilitates the compression of the elastic member 400 when the movable member 300 is pressed.

[0038] refer to Figures 2-3 As shown, there are multiple snap-fit ​​structures 200, which are distributed circumferentially at intervals along the first mounting hole 101. Using multiple snap-fit ​​structures 200 to snap the louver 500 together improves the installation stability of the louver 500.

[0039] refer to Figures 2-3As shown, the snap-fit ​​structure 200 includes a spring-loaded latch 210 and a fixing member 220. One end of the spring-loaded latch 210 can extend into the first mounting hole 101 and abut against the movable member 300. The fixing member 220 passes through the other end of the spring-loaded latch 210 and is fixed in the second mounting hole 102. It can be understood that in actual operation, the spring-loaded latch 210 is used to snap the louver 500, and the fixing member 220 is used to limit the spring-loaded latch 210 to prevent it from flying out when installing or removing the louver 500.

[0040] Optionally, the spring clip 210 includes a first part 211 and a second part 212. The radial dimension of the first part 211 is larger than that of the second part 212. The first part 211 can abut against the movable part 300. The second mounting hole 102 includes a fourth hole segment 1021 and a fifth hole segment 1022 that are interconnected. The diameter of the fifth hole segment 1022 is larger than that of the fourth hole segment 1021. The fastener 220 is sleeved on the second part 212 and fixed to the fifth hole segment 1022. Optionally, the fastener 220 can be fixed in the fifth hole 1022 by means of screws, pins or rivets. Understandably, in the actual installation process, the spring clip 210 is first passed through the fifth hole 1022 and installed in the fourth hole 1021. Then, the fastener 220 is inserted into the fifth hole 1022 and fitted onto the second part 212. Finally, the fastener 220 is rotated to lock it to the fifth hole 1022 by means of screws, pins or rivets. This method of fixing the spring clip 210 is very convenient to install and has a good restraining effect on the spring clip 210, which can prevent the spring clip 210 from falling out of the second mounting hole 102.

[0041] Optionally, the end of the first part 211 facing away from the second part 212 is formed with a first curved surface 2111, and the bottom of the groove 311 is formed with a second curved surface 3111 that matches the first curved surface 2111. It can be understood that when the first part 211 is formed with the first curved surface 2111 and the bottom of the groove 311 is formed with the second curved surface 3111, when the movable part 300 rebounds under the action of the elastic part 400, the second curved surface 3111 contacts and presses the first curved surface 2111, and the first part 211 can smoothly leave the groove 311, so that the spring clip 210 can stably pop out of the second mounting hole 102 to engage the louver 500.

[0042] Optionally, the second part 212 has a third curved surface 2121 formed at the end opposite to the first part 211. It is understood that during the installation of the louver 500, when the louver 500 is pressed along the axial direction of the positioning post 110, the inner wall of the louver 500 contacts the third curved surface 2121, which can smoothly press the entire spring clip 210 into the second mounting hole 102, ensuring the smooth installation of the louver 500.

[0043] This utility model also discloses a grinding device, including a louver and a quick-change device for the louver. The louver 500 is detachably installed on the quick-change device. The louver 500 has a positioning hole 510, which is a polygonal hole. The cross section of the positioning post 110 is a polygon that matches the shape of the positioning hole 510.

[0044] Optionally, the positioning post 110 is a hexagonal prism. The positioning hole 510 on the louver 500 is a hexagonal hole. After the louver 500 and the positioning post 110 are engaged, their installation stability can be ensured, and the louver 500 can be prevented from rotating relative to the quick-change device.

[0045] In the description of this specification, references to terms such as "some embodiments," "other embodiments," etc., indicate that a specific feature, structure, material, or characteristic described in connection with that embodiment or example is included in at least one embodiment or example of the present invention. In this specification, the illustrative expressions of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples.

[0046] Obviously, the above embodiments of this utility model are merely examples for clearly illustrating the present utility model, and are not intended to limit the implementation of the present utility model. Those skilled in the art can make various obvious changes, readjustments, and substitutions without departing from the protection scope of this utility model. It is neither necessary nor possible to exhaustively describe all embodiments here. Any modifications, equivalent substitutions, and improvements made within the spirit and principles of this utility model should be included within the protection scope of the claims of this utility model.

Claims

1. A quick-change device for louvers, characterized in that, include: A support member (100) is provided with a positioning post (110) for assembling the louver (500) at the center of the support member (100) facing the louver (500). A first mounting hole (101) is provided at the center of the positioning post (110), the first mounting hole (101) is arranged along the axial direction of the positioning post (110), and a second mounting hole (102) communicating with the first mounting hole (101) is provided in the radial direction of the positioning post (110). A snap-fit ​​structure (200) is movably mounted in the second mounting hole (102); A movable component (300) is movably installed in the first mounting hole (101), and the movable component (300) is provided with a snap-fit ​​portion; wherein: The movable part (300) can move within the first mounting hole (101) under the action of external force; when the movable part (300) moves to the point where the snap-fit ​​part corresponds to the snap-fit ​​structure (200), pressing the snap-fit ​​structure (200) causes the snap-fit ​​structure (200) to retract toward the second mounting hole (102); when the movable part (300) moves to the point where the snap-fit ​​structure (200) disengages from the snap-fit ​​part, the movable part (300) can push the snap-fit ​​structure (200) to extend out of the second mounting hole (102).

2. Quick change device for louvers according to claim 1, characterized in that, The snap-fit ​​portion includes a groove (311), and the movable part (300) also includes a stop groove (312). The stop groove (312) communicates with the groove (311), and the depth of the stop groove (312) is less than the depth of the groove (311). When the bottom wall of the stop groove (312) abuts against the snap-fit ​​structure (200), the side of the snap-fit ​​structure (200) opposite to the stop groove (312) extends out of the second mounting hole (102).

3. Quick change device for louvers according to claim 1, characterized in that, It also includes an elastic element (400), which is installed in the first mounting hole (101). One end of the elastic element (400) abuts against the movable element (300), and the other end abuts against the support element (100).

4. Quick change device for louvers according to claim 3, characterized in that, The support member (100) further includes a support portion (120) and an extension portion (130). The positioning post (110) and the extension portion (130) are respectively disposed on both sides of the support portion (120). The support portion (120) is used to support the louver (500). The support portion (120) includes a support plate (121) and a support protrusion ring (122) connected to the support plate (121). In the direction away from the support plate (121), the diameter of the support protrusion ring (122) gradually increases.

5. Quick change device for louvers according to claim 4, characterized in that, The first mounting hole (101) penetrates the extension (130). The first mounting hole (101) includes a first hole segment (1011) and a second hole segment (1012) with successively increasing hole diameters. The second mounting hole (102) communicates with the first hole segment (1011). The elastic member (400) is installed in the extension (130). One end of the elastic member (400) abuts against the first step surface formed by the first hole segment (1011) and the second hole segment (1012).

6. Quick change device for louvers according to claim 5, characterized in that, The first mounting hole (101) further includes a third hole segment (1013), the diameter of which is larger than that of the second hole segment (1012). The movable member (300) includes a first shaft segment (310) and a second shaft segment (320). The first shaft segment (310) is fitted with the second hole segment (1012) and the first hole segment (1011), and the second shaft segment (320) is fitted with the third hole segment (1013). The other end of the elastic member (400) abuts against the second step surface formed by the first shaft segment (310) and the second shaft segment (320).

7. Quick change device for louvers according to any of claims 1-6, characterized in that, The snap-fit ​​structure (200) includes: A spring clip (210), one end of which can extend into the first mounting hole (101) and abut against the movable part (300); A fastener (220) is inserted through the other end of the snap fastener (210) and fixed in the second mounting hole (102).

8. Quick change device for louvers according to claim 7, characterized in that, The spring clip (210) includes a first part (211) and a second part (212). The radial dimension of the first part (211) is greater than that of the second part (212). The first part (211) can abut against the movable member (300). The second mounting hole (102) includes a fourth hole segment (1021) and a fifth hole segment (1022) that are interconnected. The diameter of the fifth hole segment (1022) is greater than that of the fourth hole segment (1021). The fastener (220) is sleeved on the second part (212) and fixed to the fifth hole segment (1022).

9. Quick change device for louvers according to claim 8, characterized in that, The first part (211) has a first curved surface (2111) formed at one end away from the second part (212), the snap-fit ​​part has a second curved surface (3111) that matches the first curved surface (2111), and the second part (212) has a third curved surface (2121) formed at one end away from the first part (211).

10. A sharpening device characterized by, Includes louvers and a quick-change device for louvers according to any one of claims 1-9, wherein the louvers (500) are detachably mounted to the quick-change device.

11. The sharpening device of claim 10, wherein, The louver (500) has a positioning hole (510), which is a polygonal hole, and the cross section of the positioning post (110) is a polygon that matches the shape of the positioning hole (510).

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