A motor base fixing device

Abstract

The utility model discloses a motor base fixing device, include: the fixed seat of bearing motor base to the multiple limiting components of symmetrical setting on the fixed seat, and the limiting space of the motor base of different specifications is fixed in the surrounding formation of multiple limiting components, limiting component includes: limit seat, limiting piece and anti -loose spare, limit seat installs on the fixed seat, and limiting piece installs on the fixed seat through the screw pair, limiting piece is close to the one end of limiting space and is contacted with motor base, and the lateral surface department of motor base is fixed through extruding with opposite limiting piece cooperation. Further convenient to fix different model motor on the fixed seat, improved the fixing efficiency after the replacement motor, still can not produce the change damage of the overall structure to the fixed seat, improved the stability and prolong its life after motor clamping fixed, when fixing the replacement motor of different model, it is more labor -saving convenient to operate, is suitable for more use environment.

Description

Technical Field

[0001] This utility model relates to the field of motor technology, and in particular to a motor base fixing device. Background Technology

[0002] When installing existing motors, the motor base needs to be fixed to the mounting bracket. The common method of fixing is to use bolts to pass through the mounting holes of the base.

[0003] However, after changing the motor model, the motor base will become smaller or larger, which will change the position of the mounting holes on the base. It is necessary to drill new bolt holes on the mounting base to match the new model, which is time-consuming and laborious, and will also damage the stability of the overall structure of the base. After fixing, it is also easy to loosen, which will affect the use of the motor. Utility Model Content

[0004] The technical problem to be solved by this utility model is to provide a motor base fixing device.

[0005] The technical solution adopted by this utility model to solve its technical problem is as follows: A motor base fixing device is constructed, comprising: a fixing seat supporting the motor base, and a plurality of limiting components symmetrically arranged on the fixing seat, wherein the plurality of limiting components surround to form a limiting space for fixing motor bases of different specifications therein; each limiting component includes: a limiting seat, a limiting member, and an anti-loosening member; the limiting seat is mounted on the fixing seat, and the limiting member is mounted on the fixing seat via a threaded pair; one end of the limiting member near the limiting space contacts the motor base, and by cooperating with the limiting member on the opposite side, it presses and fixes the side portion of the motor base, and also cooperates with the fixing seat to clamp the motor base in the limiting space; the anti-loosening member is mounted on the limiting member or the limiting seat to limit the displacement between the limiting member and the limiting seat.

[0006] Furthermore, the limiting component includes: a first drive rod and a first extrusion block. The first drive rod is connected to the limiting seat via a threaded pair. The first extrusion block is rotatably connected to one end of the first drive rod near the limiting space. The first extrusion block is provided with an extrusion slope that contacts the motor base. The extrusion slope slopes outward from top to bottom as it gets closer to the motor base.

[0007] Furthermore, the first extrusion block is shaped like a frustum of a cone.

[0008] Furthermore, the limiting component includes: a second drive rod, a second extrusion block, and an extrusion member. The second drive rod is connected to the limiting seat via a threaded pair. The second extrusion block is rotatably connected to one end of the second drive rod near the limiting space. The second extrusion block is provided with an extrusion surface that contacts the side of the motor base. The extrusion member is installed on the second extrusion block to press the motor base down onto the fixed seat.

[0009] Furthermore, each of the four sides of the fixed base is provided with a sliding groove, and at least one of the limiting components is slidably connected in each sliding groove.

[0010] Furthermore, the cross-section of the groove is polygonal.

[0011] Furthermore, the end of the groove is provided with an opening for the limiting component 3 to slide in or out.

[0012] Furthermore, the anti-loosening component is a limit nut that is connected to the limit component via a threaded connection.

[0013] Furthermore, the anti-loosening component includes: a limiting sleeve and a limiting groove disposed on the limiting seat, wherein the limiting sleeve is inserted into the limiting groove to restrict the rotation of the limiting component; the interior of the limiting sleeve corresponds to the outer shape of the end of the limiting component, and both the end of the limiting component and the limiting groove are polygonal.

[0014] Furthermore, the anti-loosening component also includes a permanent magnet disposed between the limiting groove and the limiting sleeve.

[0015] The following are the beneficial effects of implementing this utility model:

[0016] This application uses multiple limiting components to form a limiting space that fixes motor bases of different specifications. The limiting space is located above the fixing base. After the limiting components contact the motor base, they exert a pushing force on the motor base in two directions: one is a pushing force applied to the limiting space along the axis of the limiting component, and the other is a force perpendicular to the motor base and downward. The pushing force applied to the limiting space by the multiple symmetrical limiting components clamps and fixes the symmetrical side faces of the motor base. Then, the downward force perpendicular to the motor base by the multiple limiting components, in cooperation with the fixing base, clamps the motor base in the limiting space. The positioning components apply multiple clamping forces to the motor base, thereby improving the strength of the motor fixation and the stability during operation. To fix different motor models, simply change the distance between each positioning component and its respective positioning seat. This facilitates fixing different motor models to the mounting base, improving the fixing efficiency after motor replacement without causing any alteration or damage to the overall structure of the mounting base. This enhances the stability of the motor after clamping and fixing, extends its service life, and makes the operation more labor-saving and convenient when changing different motor models, making it suitable for a wider range of usage environments. Attached Figure Description

[0017] To more clearly illustrate the technical solution of this utility model, the present utility model will be further described below in conjunction with the accompanying drawings and embodiments. It should be understood that the following drawings only show some embodiments of this utility model and should not be regarded as a limitation on the scope. For those skilled in the art, other related drawings can be obtained from these drawings without creative effort.

[0018] In the attached image:

[0019] Figure 1 This is a three-dimensional structural schematic diagram of the motor base fixing device in some embodiments of this utility model;

[0020] Figure 2 This is a three-dimensional structural diagram of the fixing seat and limiting component in some embodiments of this utility model;

[0021] Figure 3 This is a front view of the first drive rod and the first extrusion block in some embodiments of the present invention;

[0022] Figure 4 This is a three-dimensional structural diagram of the motor base fixing device in another embodiment of the present utility model;

[0023] Figure 5 This is a partial three-dimensional structural diagram of the fixing base and limiting component in another embodiment of the present utility model;

[0024] Figure 6This is a three-dimensional structural diagram of the motor base fixing device in another embodiment of the present utility model;

[0025] Figure 7 This is a three-dimensional structural diagram of the limiting seat and limiting member in another embodiment of the present utility model;

[0026] Figure 8 This is a three-dimensional structural diagram of the anti-loosening component in another embodiment of the present invention.

[0027] Explanation of markings in the diagram

[0028] Motor base 1, fixed seat 2, slide groove 21, opening 22, limiting assembly 3, limiting seat 31, limiting component 32, first drive rod 321, first extrusion block 322, extrusion inclined surface 323, second drive rod 324, second extrusion block 325, extrusion component 326, anti-loosening component 33, limiting sleeve 331, limiting groove 332, permanent magnet 333, limiting space 4. Detailed Implementation

[0029] To provide a clearer understanding of the technical features, objectives, and effects of this utility model, the specific embodiments of this utility model are now described in detail with reference to the accompanying drawings. In the following description, it should be understood that the orientations or positional relationships indicated by terms such as "front," "rear," "upper," "lower," "left," "right," "longitudinal," "horizontal," "vertical," "horizontal," "top," "bottom," "inner," "outer," "head," and "tail" are based on the orientations or positional relationships shown in the accompanying drawings, and are constructed and operated in a specific orientation. They are only for the convenience of describing this technical solution and do not indicate that the device or component referred to must have a specific orientation; therefore, they should not be construed as limitations on this utility model.

[0030] It should also be noted that, unless otherwise explicitly specified and limited, terms such as "installation," "connection," "joining," "fixing," and "setting" 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. When an component is referred to as being "on" or "below" another component, the component can be located "directly" or "indirectly" on the other component, or there may be one or more intermediary components. The terms "first," "second," "third," etc., are only for the convenience of describing this technical solution and should not be construed as indicating or implying relative importance or implicitly specifying the number of indicated technical features. Therefore, features defined with "first," "second," "third," etc., may explicitly or implicitly include one or more of that feature. For those skilled in the art, the specific meaning of the above terms in this utility model can be understood according to the specific circumstances.

[0031] In the following description, specific details such as particular system structures and techniques are set forth for illustrative purposes and not for limitation, in order to provide a thorough understanding of the embodiments of the present invention. However, those skilled in the art will understand that the present invention can be implemented in other embodiments without these specific details. In other instances, detailed descriptions of well-known systems, apparatuses, circuits, and methods are omitted so as not to obscure the description of the present invention with unnecessary detail.

[0032] Please see Figures 1 to 3 A motor base fixing device according to the first embodiment of this utility model includes: a fixing base 2 supporting a motor base 1, and a plurality of limiting components 3 symmetrically arranged on the fixing base 2. The plurality of limiting components 3 surround to form a limiting space 4 for fixing motor bases 1 of different specifications therein. The limiting component 3 includes: a limiting seat 31, a limiting member 32, and an anti-loosening member 33. The limiting seat 31 is installed on the fixing base 2, and the limiting member 32 is installed on the fixing base 2 by a threaded pair. The end of the limiting member 32 near the limiting space 4 contacts the motor base 1, and by cooperating with the limiting member 32 on the opposite side, it presses and fixes the side of the motor base 1, and also cooperates with the fixing base 2 to clamp the motor base 1 in the limiting space 4. The anti-loosening member 33 is installed on the limiting member 32 or the limiting seat 31 to limit the displacement between the limiting member 32 and the limiting seat 31.

[0033] This application uses multiple limiting components 3 to form a limiting space 4 that fixes motor bases 1 of different specifications. The limiting space 4 is located above the fixing seat 2. After the motor is placed in the limiting space 4 on the fixing seat 2, the motor is adjusted to a suitable position. Then, one limiting member 32 is rotated so that the limiting member 32 on the limiting seat 31 moves closer to the motor base 1 and makes contact with it. After that, the rotation of the limiting member 32 on this side is stopped. Then, the limiting member 32 on the opposite side is rotated so that the limiting member 32 on the opposite side moves closer to the motor base 1 and makes contact with it. Then, by alternately rotating the limiting members 32 on both sides, the limiting members 32 on both sides cooperate to press the motor base 1 into the limiting space 4. Then, the anti-loosening member 33 restricts the rotation of each limiting member 32 to prevent displacement between the limiting member 32 and the fixing seat 2. Thus, the symmetrically arranged limiting components 3 can fix the motor base 1 in the limiting space 4 for a long time and stably. After the limiting member 32 contacts the motor base 1, it exerts a pushing force on the motor base 1 in two directions. One is a pushing force applied along the axial direction of the limiting member 32 towards the limiting space 4, and the other is a downward force perpendicular to the motor base 1. By using the pushing force applied to the limiting space 4 by the multiple symmetrical limiting members 32, the symmetrical side faces of the motor base 1 are clamped and fixed. Then, by using the downward force of the multiple limiting members 32 perpendicular to the motor base 1, in cooperation with the fixing seat 2, the motor base 1 is clamped in the limiting space 4. Thus, the multiple limiting members 32 apply multiple clamping forces to the motor base 1. The fixing force is increased, thereby improving the strength of the motor fixation and the stability during operation. To change the fixing force for different motor models, it is only necessary to change the distance between each limiting member 32 and its respective limiting seat 31. This makes it easier to fix different motor models on the fixing seat 2, improving the fixing efficiency after motor replacement, and without causing any alteration damage to the overall structure of the fixing seat 2. This improves the stability of the motor clamping and fixing and extends its service life. When changing the fixing force for different motor models, the operation is more labor-saving and convenient, and it is suitable for more usage environments.

[0034] Please see Figures 1 to 3 In some embodiments, the limiting member 32 includes a first drive rod 321 and a first pressing block 322. The first drive rod 321 is connected to the limiting seat 31 by a threaded pair. The first pressing block 322 is rotatably connected to one end of the first drive rod 321 near the limiting space 4. The first pressing block 322 is provided with a pressing inclined surface 323 that contacts the motor base 1. The pressing inclined surface 323 is inclined outward from top to bottom as it gets closer to the motor base 1.

[0035] In this application, the first drive rod 321 is connected to the limiting seat 31 by a threaded pair. The first extrusion block 322 is rotatably connected to one end of the first drive rod 321 near the limiting space 4. The first extrusion block 322 is provided with an extrusion slope 323 that contacts the motor base 1. The extrusion slope 323 is inclined outward from top to bottom as it gets closer to the motor base 1. By rotating the first drive rod 321, the first drive rod 321 drives the first extrusion block 322 to approach the motor base 1 until the extrusion slope 323 contacts the motor base 1. Then, the first drive rod 321 on the opposite side is rotated, causing the extrusion slope 323 on the first extrusion block 322 to extrude the motor base 1. Since the extrusion slope 323 is inclined outward from top to bottom as it gets closer to the motor base 1, when the extrusion slopes 323 on both sides extrude towards the center, the extrusion slope 323 will apply a clamping force to the motor base 1 along the axial direction of the first drive rod 321 towards the limiting space 4. The extrusion slope 323 will also press the motor base 1 downward onto the fixed seat 2, thereby applying multiple clamping and fixing forces to the motor base 1, improving the stability and firmness of the motor base 1 after installation with the fixed seat 2, and thus improving the stability and safety of the motor during operation.

[0036] The first extrusion block 322 is rotatably connected to one end of the first drive rod 321 near the limiting space 4. When the first drive rod 321 extrudes the first extrusion block 322 onto the motor base 1, the direction of the extrusion slope 323 on the first extrusion block 322 can be adjusted so that the extrusion slope 323 can make perpendicular contact with the side of the motor base 1. After the first extrusion block 322 contacts the side of the motor base 1, the first drive rod 321 can be rotated to continue to apply extrusion force to the motor base 1, thereby improving the extrusion fixing force, making the operation more flexible, and making the clamping and fixing of the first extrusion blocks 322 on both sides of the motor base 1 more firm and reliable.

[0037] Please see Figure 4 and Figure 5 In some embodiments, the first extrusion block 322 is shaped like a frustum cone.

[0038] This application utilizes a first extrusion block 322 shaped like a frustum of a cone, with the extrusion slope 323 forming the lateral side of the frustum of the first extrusion block 322. Similarly, by rotating the first drive rod 321, the first extrusion block 322 is moved closer to the motor base 1, and the lateral sides of the two frustums are used to press and fix the motor base 1 onto the fixing seat 2, making operation more convenient and labor-saving. The frustum-shaped first extrusion block 322 is less prone to deformation, resulting in a longer service life.

[0039] When the first extrusion block 322 is in the shape of a frustum cone, the first extrusion block 322 can be fixedly connected to the end of the first drive rod 321 near the limiting space 4, which is more labor-saving and convenient to manufacture, reduces manufacturing costs, and can also improve the overall structural strength of the limiting component 32, making it more durable.

[0040] Please see Figures 6 to 8 In some embodiments, the limiting member 32 includes: a second drive rod 324, a second pressing block 325, and a pressing member 326. The second drive rod 324 is connected to the limiting seat 31 by a threaded pair. The second pressing block 325 is rotatably connected to one end of the second drive rod 324 near the limiting space 4. The second pressing block 325 is provided with a pressing surface that contacts the side of the motor base 1. The pressing member 326 is installed on the second pressing block 325 to press the motor base 1 down onto the fixed seat 2.

[0041] This application uses a second drive rod 324 connected to a limiting seat 31 via a threaded connection. A second pressing block 325 is rotatably connected to one end of the second drive rod 324 near the limiting space 4. The second pressing block 325 has a pressing surface that contacts the side of the motor base 1. A pressing element 326 is mounted on the second pressing block 325, pressing the motor base 1 down onto the fixed seat 2. By rotating the second drive rods 324 on both sides, the respective second pressing blocks 325 move towards the center, clamping and fixing the side of the motor base 1. Then, by rotating the pressing element 326, the pressing element 326 moves downward, allowing its lower end to contact the upper part of the motor base 1. The pressing element 326 presses the upper part of the motor base 1 down onto the fixed seat 2, thereby increasing the clamping and fixing force on the motor base 1. This makes the motor operation more stable and safe, and suitable for more usage environments. It can clamp and fix motor bases 1 at different heights on both sides, further expanding the scope of application.

[0042] Please see Figures 6 to 8 In some embodiments, the fixed base 2 is provided with sliding grooves 21 around its perimeter, and at least one limiting component 3 is slidably connected in each sliding groove 21.

[0043] This application features sliding grooves 21 around the perimeter of the fixed base 2, with at least one limiting component 3 slidably connected in each groove 21. The opening direction of the groove 21 is parallel to the side of the fixed base 2. The fixed base 2 is slidably connected in the groove 21, allowing the position between the fixed base 2 and the limiting component 3 to be changed laterally. This enables the limiting seat 31 of the limiting component 3 to move the limiting member 32 and the anti-loosening member 33 laterally, allowing the limiting member 32 to press and fix different positions of the motor base 1. The applied pressure is more evenly distributed on the motor base 1, preventing deformation of the motor base 1 during pressing, extending its service life, and improving the stability after pressing and fixing. Furthermore, by moving the limiting component 3, more different models of motor base 1 can be clamped and fixed, further expanding the application range and making it suitable for more usage environments.

[0044] When the limiting members 32 on both sides clamp and fix the motor base 1, the reaction force generated by the limiting members 32 on both sides will be transmitted to the limiting seat 31, causing the limiting seat 31 to be squeezed outward in the slide groove 21. Then, through the squeezing force and friction of the limiting seat 31 on the slide groove 21, the limiting seat 31 is kept stationary in the slide groove 21, making the operation more labor-saving and convenient, and improving the adjustment efficiency.

[0045] Please see Figures 6 to 8 In some embodiments, the cross-section of the groove 21 is polygonal.

[0046] The present application utilizes the polygonal cross-section of the slide groove 21, which reduces the shaking of the limiting seat 31 in the slide groove 21, thereby reducing the loss of clamping force during the clamping and fixing process, thus reducing labor intensity, and also reducing the shaking after clamping and fixing the motor base 1, thereby improving the stability and firmness of clamping and fixing the motor base 1.

[0047] Please see Figures 6 to 8 In some embodiments, the end of the slide 21 is provided with an opening 22 for the limiting component 3 to slide into or out.

[0048] This application features an opening 22 at the end of the slide groove 21 for the limiting component 3 to slide in or out. The opening 22 allows for the replacement of the limiting seat 31 of the limiting component 3 and facilitates changing the number of limiting components 3 in the same slide groove 21, making it suitable for different operating environments. The limiting seat 31 can be replaced promptly after wear, making operation more labor-saving and convenient.

[0049] Please see Figure 6 and Figure 8 In some embodiments, the anti-loosening member 33 is a limiting nut connected to the limiting member 32 via a threaded pair.

[0050] This application uses a locking nut, which is connected to the locking member 32 via a threaded connection, as the anti-loosening member 33. After the locking members 32 on both sides press and fix the motor base 1, the locking nut is rotated to make it contact the locking seat 31, thereby increasing the locking force on the locking member 32, reducing the rotation of the locking member 32, and enabling the locking member 32 to press and fix the motor base 1 for a long time, improving the stability of the motor during operation, making the operation more labor-saving and convenient, and also saving manufacturing costs.

[0051] Please see Figure 6 and Figure 7 In some embodiments, the anti-loosening member 33 includes: a limiting sleeve 331 and a limiting groove 332 disposed on the limiting seat 31. The limiting sleeve 331 is inserted into the limiting groove 332 to restrict the rotation of the limiting member 32. The interior of the limiting sleeve 331 corresponds to the end shape of the limiting member 32. Both the end of the limiting member 32 and the limiting groove 332 are polygonal.

[0052] This application restricts the rotation of the limiting member 32 by inserting a limiting sleeve 331 into the limiting groove 332. The interior of the limiting sleeve 331 corresponds to the end shape of the limiting member 32, and both the end of the limiting member 32 and the limiting groove 332 are polygonal. After the limiting members 32 on both sides press and fix the motor base 1, the limiting sleeve 331 is placed on the end of the limiting member 32. Then, the limiting sleeve 331 is moved further so that it is inserted into the limiting groove 332. The limiting groove 332 restricts the rotation of the limiting sleeve 331, and the interior of the limiting sleeve 331 restricts the end of the limiting member 32, preventing the limiting members 32 on both sides from rotating after pressing and fixing the motor base 1. This allows the limiting member 32 to maintain the pressing and fixing of the motor base 1 for a long time, further improving the stability of the motor during operation.

[0053] The shape of the limiting groove 332 can be the projection of the limiting sleeve 331 rotating around the axis of the limiting member 32 at multiple angles, so that the limiting sleeve 331 can be easily inserted into the limiting groove 332 after being fitted onto the end of the limiting member 32, which can lock the limiting member 32 more firmly and further improve stability and convenience.

[0054] Please see Figure 6 and Figure 7 In some embodiments, the anti-loosening component 33 further includes a permanent magnet 333 disposed between the limiting groove 332 and the limiting sleeve 331.

[0055] This application uses a permanent magnet 333 disposed between the limiting groove 332 and the limiting sleeve 331. The magnetism of the permanent magnet 333 can improve the connection strength between the limiting sleeve 331 and the limiting groove 332, and prevent the limiting sleeve 331 from detaching due to vibration generated during motor operation. This further improves the anti-loosening performance of the limiting component 32 and makes the motor run more smoothly.

[0056] It is understood that the above embodiments only illustrate preferred embodiments of the present utility model, and their descriptions are relatively specific and detailed, but they should not be construed as limiting the scope of the present utility model patent. It should be noted that for those skilled in the art, the above technical features can be freely combined, and several modifications and improvements can be made without departing from the concept of the present utility model, all of which fall within the protection scope of the present utility model. Therefore, all equivalent transformations and modifications made within the scope of the claims of the present utility model should fall within the coverage of the claims of the present utility model.

Claims

1. A motor base fixing device, characterized in that, include: A fixed base (2) that supports the motor base (1), and a plurality of limiting components (3) symmetrically arranged on the fixed base (2), the plurality of limiting components (3) surrounding to form a limiting space (4) in which the motor base (1) of different specifications is fixed; The limiting component (3) includes: a limiting seat (31), a limiting member (32), and an anti-loosening member (33). The limiting seat (31) is mounted on the fixed seat (2), and the limiting member (32) is mounted on the fixed seat (2) by means of a threaded pair. The end of the limiting member (32) near the limiting space (4) contacts the motor base (1), and the side of the motor base (1) is pressed and fixed by cooperating with the limiting member (32) on the opposite side, and the motor base (1) is clamped in the limiting space (4) by cooperating with the fixing seat (2). The anti-loosening component (33) is installed on the limiting component (32) or the limiting seat (31) to limit the displacement between the limiting component (32) and the limiting seat (31).

2. The motor base fixing device according to claim 1, characterized in that, The limiting member (32) includes a first drive rod (321) and a first pressing block (322). The first drive rod (321) is connected to the limiting seat (31) by a threaded pair. The first pressing block (322) is rotatably connected to one end of the first drive rod (321) near the limiting space (4). The first pressing block (322) is provided with a pressing inclined surface (323) that contacts the motor base (1). The pressing inclined surface (323) is inclined outward from top to bottom as it gets closer to the motor base (1).

3. The motor base fixing device according to claim 2, characterized in that, The first extrusion block (322) is shaped like a frustum conical.

4. The motor base fixing device according to claim 1, characterized in that, The limiting member (32) includes: a second drive rod (324), a second extrusion block (325), and an extrusion member (326). The second drive rod (324) is connected to the limiting seat (31) by a threaded pair. The second extrusion block (325) is rotatably connected to one end of the second drive rod (324) near the limiting space (4). The second extrusion block (325) is provided with an extrusion surface that contacts the side of the motor base (1). The extrusion member (326) is installed on the second extrusion block (325) to press the motor base (1) down onto the fixed seat (2).

5. The motor base fixing device according to claim 1, characterized in that, The fixed base (2) is provided with sliding grooves (21) around its perimeter, and at least one limiting component (3) is slidably connected in each sliding groove (21).

6. The motor base fixing device according to claim 5, characterized in that, The cross-section of the groove (21) is polygonal.

7. The motor base fixing device according to claim 5, characterized in that, The end of the slide (21) is provided with an opening (22) for the limiting component (3) to slide into or out.

8. The motor base fixing device according to claim 1, characterized in that, The anti-loosening component (33) is a limiting nut that is connected to the limiting component (32) by a threaded pair.

9. The motor base fixing device according to claim 1, characterized in that, The anti-loosening component (33) includes: a limiting sleeve (331) and a limiting groove (332) disposed on the limiting seat (31). The limiting sleeve (331) is inserted into the limiting groove (332) to restrict the rotation of the limiting component (32). The interior of the limiting sleeve (331) corresponds to the end shape of the limiting component (32). Both the end of the limiting component (32) and the limiting groove (332) are polygonal.

10. The motor base fixing device according to claim 9, characterized in that, The anti-loosening component (33) also includes a permanent magnet (333) disposed between the limiting groove (332) and the limiting sleeve (331).

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