Quick mounting device for mounting disks and lawn mower

Abstract

The application provides a quick mounting device of a mounting disc and a mower. The quick mounting device comprises a connector, a mounting disc and a locking body. The connector is mounted on a first shaft and rotates with the first shaft, and a threaded body is arranged on the connector. The mounting disc is mounted on the connector and rotates with the connector, and a through hole is arranged on the mounting disc, and the threaded body passes through the through hole. The locking body is arranged on the side of the mounting disc away from the connector and is threadedly connected to the threaded body. The device is simple, and the problem that the mounting disc is inconvenient to replace during use is solved.

Description

Technical Field

[0001] This invention relates to the field of lawnmower technology, specifically to a quick-installation device for a mounting plate and a lawnmower. Background Technology

[0002] A robotic lawnmower is a robotic gardening tool used for lawn maintenance. It can automatically travel within a mowing area to cut away vegetation, enabling lawn trimming and maintenance in home gardens, public green spaces, and other locations. The blade disc is an essential component of a robotic lawnmower; when the motor rotates at high speed, it drives the blade disc to cut weeds. Current technology typically uses screws to secure the blade disc to the mowing motor. However, after the lawnmower has been in operation for a period of time, the screw heads accumulate grass clippings, dirt, and other debris, increasing the difficulty of blade disc replacement. Furthermore, during blade disc rotation, if the knob on the blade disc rotates in the opposite direction due to weeds or other factors, the knob may detach from the blade disc, causing the blade disc to fall off the motor. Therefore, there is a need for a quick-installation device for the mounting disc and a suitable lawnmower. Summary of the Invention

[0003] In view of the shortcomings and defects in the prior art, the present invention provides a quick installation device for the mounting disc and a lawnmower to solve the problem that the mounting disc is inconvenient to replace during use in the prior art.

[0004] To achieve the above and other related objectives, the present invention provides an installation device for an installation plate, comprising: a connector, an installation plate, and a locking body.

[0005] The connector described above is mounted on the first shaft and rotates with the first shaft, and has a threaded body on it;

[0006] The aforementioned mounting plate is mounted on the connector and rotates with the connector. It is provided with a through hole, through which the threaded body protrudes.

[0007] The aforementioned locking body is disposed on the side of the mounting plate opposite to the connector and is threadedly mounted on the threaded body;

[0008] An anti-loosening device is provided between the mounting plate and the locking body.

[0009] In one embodiment of the present invention, the first shaft is a motor shaft, the connector seat is mounted on the motor shaft, and the threaded body is disposed on the side of the seat away from the motor.

[0010] In one embodiment of the present invention, the connector is interference-fitted onto the first shaft.

[0011] In one embodiment of the present invention, the anti-loosening device includes a plurality of first teeth disposed on the mounting plate and a plurality of second teeth disposed on the locking body. When the locking body tightens the mounting plate onto the connector, the first teeth and the second teeth are engaged.

[0012] In one embodiment of the present invention, at least one locking block is provided on the mounting plate, the locking block undergoes elastic deformation under the radial extrusion force of the locking body, and the plurality of first teeth are provided on the locking block.

[0013] In one embodiment of the present invention, there are multiple locking blocks, which are evenly distributed in a circumferential shape on the outside of the through hole. The plurality of first teeth are disposed on the side of each locking block facing the through hole. The locking body is provided with a locking cavity, and the plurality of second teeth are disposed on the locking cavity.

[0014] In one embodiment of the present invention, the plurality of second teeth are evenly distributed along the circumferential direction.

[0015] In one embodiment of the present invention, the connector is connected to the mounting plate via a circumferential stop plug-in device.

[0016] In one embodiment of the present invention, the circumferential stop plug-in device includes a mounting groove disposed on the mounting plate and a seat disposed on the connector, wherein the mounting groove matches the shape of the seat and the seat is inserted into the mounting groove.

[0017] In one embodiment of the present invention, the locking body is provided with a plurality of gripping portions.

[0018] In one embodiment of the present invention, the plurality of gripping portions are evenly distributed on the sidewalls of the locking body.

[0019] In one embodiment of the present invention, a lawnmower is also provided, including a housing, a motor and blades, wherein the mounting plate of the blades is mounted to the motor shaft of the motor via a quick-mounting device for the mounting plate, the quick-mounting device for the mounting plate including a connector, a mounting plate and a locking body.

[0020] The connector is mounted on the motor shaft and rotates with the motor shaft; it is provided with a threaded body.

[0021] The aforementioned mounting plate is mounted on the connector and rotates with the connector. It is provided with a through hole, through which the threaded body protrudes.

[0022] The aforementioned locking body is disposed on the side of the mounting plate opposite to the connector and is threadedly mounted on the threaded body;

[0023] An anti-loosening device is provided between the mounting plate and the locking body.

[0024] In one embodiment of the present invention, the anti-loosening device includes a plurality of first teeth disposed on the mounting plate and a plurality of second teeth disposed on the locking body. When the locking body tightens the mounting plate onto the connector, the first teeth and the second teeth are engaged.

[0025] In one embodiment of the present invention, a mounting cavity is provided on the side of the housing facing the mounting plate.

[0026] In one embodiment of the present invention, a fixing platform is provided on the outside of the mounting cavity, and a plurality of reinforcing ribs are uniformly installed between the fixing platform and the mounting cavity.

[0027] In one embodiment of the present invention, the connector is provided with a housing fixing groove on the side facing the housing.

[0028] In summary, the quick-installation device of the present invention has a connector mounted on a shaft, allowing the connector to rotate with the shaft. A locking body, through a threaded connection with the connector, secures the mounting plate to the shaft. When the shaft rotates, the connector, mounting plate, and locking body rotate synchronously with the shaft. When the mounting plate needs to be replaced, the operator can rotate the locking body to disengage it from the threaded body, allowing the mounting plate to be detached from the connector without any tools. This achieves quick and convenient replacement of the mounting plate, unrestricted by environmental limitations. Furthermore, by providing an anti-loosening device between the locking body and the mounting plate, the device effectively prevents the locking body from detaching from the threaded body due to reverse rotation relative to the shaft, thus preventing the mounting plate from becoming loose. Attached Figure Description

[0029] The features and advantages of the invention will be more clearly understood by referring to the accompanying drawings, which are schematic and should not be construed as limiting the invention in any way. In the drawings:

[0030] Figure 1 Shown is an exploded view of a quick installation device for an installation disk according to an embodiment of the present invention;

[0031] Figure 2 The diagram shown is a cross-sectional view of a quick-installation device for an installation disk according to an embodiment of the present invention.

[0032] Figure 3 The diagram shown is a structural schematic of a connector according to an embodiment of the invention;

[0033] Figure 4 This is a schematic diagram of the connector from another angle in one embodiment of the present invention;

[0034] Figure 5 The diagram shown is a structural schematic of the installation disk in one embodiment of the present invention;

[0035] Figure 6 This is a schematic diagram of the installation disk from another angle in one embodiment of the present invention;

[0036] Figure 7 The diagram shown is a structural schematic of the locking body in one embodiment of the present invention;

[0037] Figure 8 This is a schematic diagram of the locking body from another angle in one embodiment of the present invention;

[0038] Figure 9 The diagram shown is a schematic diagram of a mounting plate structure including a housing in one embodiment of the present invention;

[0039] Figure 10 The diagram shown is a schematic representation of a motor structure including a housing according to an embodiment of the present invention.

[0040] Figure Labels

[0041] 100. Connector; 101. Base; 102. Threaded body; 103. Fixing platform; 104. External thread; 105. Housing fixing groove; 1031. Guide chamfer; 200. Mounting plate; 201. Mounting platform; 202. Through hole; 203. Locking block; 204. Mounting groove; 205. First tooth; 300. Locking body; 301. Grip; 302. Second tooth; 303. Locking cavity; 304. Internal thread; 305. Outer wall; 306. Threaded cavity; 307. End face; 400. Motor; 401. First shaft; 500. Housing; 501. Mounting cavity; 502. Fixing platform; 503. Reinforcing rib; 504. Fixing plug; 600. Blade; 601. Bolt. Detailed Implementation

[0042] The following specific examples illustrate the implementation of the present invention. Those skilled in the art can easily understand other advantages and effects of the present invention from the content disclosed in this specification. The present invention can also be implemented or applied through other different specific embodiments. At the same time, the terms such as "upper," "lower," "left," "right," "middle," and "one" used in this specification are only for clarity of description and are not intended to limit the scope of the present invention. Changes or adjustments to their relative relationships, without substantially altering the technical content, should also be considered within the scope of the present invention.

[0043] It should be noted that the illustrations provided in this embodiment are only schematic representations of the basic concept of the present invention. Although the illustrations only show components related to the present invention and are not drawn according to the actual number, shape and size of the components, the shape, quantity and proportion of each component can be arbitrarily changed in actual implementation, and the layout of the components may also be more complex.

[0044] like Figures 1 to 2 As shown, Figure 1 The diagram shown is an exploded view of a quick-installation device for an installation disk 200 according to an embodiment of the present invention. Figure 2 The diagram shows a cross-sectional view of a quick-installation device for the mounting disc 200 according to an embodiment of the present invention. The present invention provides a quick-installation device for a mounting disc and a lawnmower. Using this quick-installation device, when the mounting disc 200 needs to be replaced, the locking body 300 is rotated to disengage it from the threaded body 102, allowing the mounting disc 200 to be removed from the connector 100 for replacement without the need for any tools, regardless of the environment. After replacing the mounting disc 200, the locking body 300 is rotated to connect its threads to the threaded body 102, thus securing the mounting disc 200 and achieving quick and convenient replacement. Furthermore, by providing an anti-loosening device between the locking body 300 and the mounting disc 200, the device effectively prevents the locking body 300 from detaching from the threaded body 102 due to reverse rotation relative to the shaft during the rotation of the mounting disc 200, thereby preventing the mounting disc 200 from becoming loose.

[0045] like Figure 1 As shown, in one embodiment of the present invention, the mounting device for the mounting plate includes: a connector 100, a mounting plate 200, and a locking body 300.

[0046] like Figures 1 to 4 As shown, Figure 3 The diagram shown is a structural schematic of the connector 100 according to an embodiment of the present invention. Figure 4 This is a schematic diagram of the connector 100 from another angle in one embodiment of the present invention. The connector 100 is mounted on a first shaft 401 and rotates with the first shaft 401. A threaded body 102 is provided on the first shaft 401. An external thread 104 is provided on the outer side wall of the threaded body 102. In one embodiment of the present invention, the first shaft 401 is a motor shaft, the seat 101 of the connector 100 is mounted on the motor shaft, and the threaded body 102 is located on the side of the seat 101 away from the motor 400. The central axis of the threaded body 102 coincides with the central axis of the seat 101. This ensures that the entire connector 100 structure is more stable and less prone to deformation under external forces. The installation method of the threaded body 102 and the seat 101 is not limited, as long as they are fastened tightly and not easily loosened. It can be welding or integral molding. It should be noted that in the following description of the present invention, the first shaft 401 is described as the motor shaft, but it is not limited thereto. The first shaft 401 can also be adapted to other shaft forms suitable for driving the connector 100 to rotate, such as the output shaft of a reducer (not shown in the figure), and there is no limitation here.

[0047] like Figure 1 , Figure 5 and Figure 6 As shown, Figure 5 The diagram shown is a structural schematic of the installation disk 200 in one embodiment of the present invention. Figure 6 This is a schematic diagram of the mounting plate 200 from another angle in one embodiment of the present invention. The mounting plate 200 is mounted on the connector 100 and rotates with the connector 100. The mounting plate 200 has a through hole 202, and the threaded body 102 passes through the through hole 202. In one embodiment of the present invention, the mounting plate 200 is disc-shaped, and a mounting platform 201 is formed at the center of the side facing the motor 400. The mounting platform 201 is an annular boss, which is coaxially arranged with the mounting plate 200. When the connector 100 is inserted into the mounting plate 200, the mounting groove 204 located inside the mounting platform 201 is forced to open outward. The mounting platform 201 can ensure that the mounting groove 204 does not undergo excessive deformation.

[0048] like Figure 1 , Figure 2 , Figure 4 , Figure 5 , Figure 7 and Figure 8 As shown, Figure 7 The diagram shown is a structural schematic of the locking body 300 in one embodiment of the present invention. Figure 8 This is a schematic diagram of the locking body 300 from another angle in one embodiment of the present invention. The locking body 300 is disposed on the side of the mounting plate 200 away from the connector 100 and is threadedly connected to the threaded body 102. During the operation of the motor 400, to prevent the locking body 300 from rotating in the opposite direction and thus becoming loose from the threaded body 102, an anti-loosening device is provided between the mounting plate 200 and the locking body 300. The specific implementation of the anti-loosening device is not limited; any device that can prevent the locking body 300 from rotating in the opposite direction during the rotation of the first shaft 401 is applicable.

[0049] In one embodiment of the present invention, the anti-loosening device includes a plurality of first teeth 205 disposed on the mounting plate 200 and a plurality of second teeth 302 disposed on the locking body 300. When the locking body 300 tightens the mounting plate 200 onto the connector 100, the plurality of first teeth 205 and the plurality of second teeth 302 engage. When the locking body 300 moves away from the mounting plate 200, the plurality of first teeth 205 and the plurality of second teeth 302 disengage. After the mounting plate 200 is installed onto the connector 100, the locking body 300 is rotated, causing its internal thread 304 to gradually engage with the external thread 104 on the threaded body 102. Simultaneously, the plurality of second teeth 302 on the locking body 300 and the plurality of first teeth 205 on the mounting plate 200 gradually engage with each other. This effectively prevents the locking body 300 from unscrewing and disengaging from the threaded body 102 due to reverse rotation, thereby preventing the mounting plate 200 from falling off. This effectively improves the safety and reliability of the quick-installation device and reduces the maintenance costs for enterprises.

[0050] In one embodiment of the present invention, the locking body 300 has an approximately cylindrical structure with a threaded cavity 306 at its center for the insertion of the threaded body 102. One end of the threaded cavity 306 is connected to the end face 307 of the locking body 300, and the other end extends toward the connector 100. An internal thread 304 matching the external thread 104 on the threaded body 102 is provided on the inner wall of the threaded cavity 306. This threaded connection allows the mounting plate 200 to work anywhere without restriction. After the mounting plate 200 has been in operation for a certain period, if it needs to be replaced, it can be easily replaced by rotating the locking body 300. No other tools are required, greatly improving the user experience.

[0051] like Figure 2 and Figure 4 As shown, to ensure that the first shaft 401 does not easily wobble on the connector 100, in one embodiment of the present invention, a fixing platform 103 is provided on the side of the base 101 facing the motor 400, and the central axis of the fixing platform 103 coincides with the central axis of the base 101. In one embodiment of the present invention, the connector 100 is interference-fitted onto the first shaft 401. When the first shaft 401 is inserted into the cavity of the fixing platform 103, the side wall of the first shaft 401 and the inner wall of the fixing platform 103 press against each other, forming an interference fit, thereby realizing power transmission.

[0052] like Figure 1 and Figure 4 As shown, in one embodiment of the present invention, a guide chamfer 1031 is formed between the side of the fixing platform 103 facing the motor 400 and the inner wall of the fixing platform 103. When the first shaft 401 is inserted into the connector 100, the guide chamfer 1031 can guide the first shaft 401, facilitating the quick assembly of the connector 100 onto the first shaft 401. In addition, the surface of the guide chamfer 1031 is relatively smooth, which will not cause wear on the first shaft 401, effectively increasing the service life of the motor 400.

[0053] like Figure 1 and Figure 5 As shown, considering that a locking block 203 can be inserted into the locking body 300 to prevent the locking body 300 from reversing, in one embodiment of the present invention, at least one locking block 203 is provided on the mounting plate 200. The locking block 203 undergoes elastic deformation under the radial compressive force of the locking body 300, and a plurality of first teeth 205 are provided on the locking block 203. The installation position of the locking block 203 is not limited and can be installed at any part of the mounting plate 200, as long as the locking function can be achieved.

[0054] like Figure 2 and Figure 7As shown, in one embodiment of the present invention, there are multiple locking blocks 203, which are evenly distributed circumferentially on the outside of the through hole 202. Several first teeth 205 are disposed on the side of each locking block 203 facing the through hole 202. A locking cavity 303 is provided on the locking body 300, and several second teeth 302 are disposed on the outer wall of the locking cavity 303. The locking blocks 203 are arc-shaped block structures, evenly distributed on the side of the mounting plate 200 facing the locking body 300, with a certain gap between adjacent locking blocks 203. This design increases the friction between the first teeth 205 and the second teeth 302 after they mesh, thus making the connection more secure. The first teeth 205 all extend along an axis parallel to the first shaft 401. During the tightening process, the locking body 300 can move towards the threaded body 102 to engage with the first teeth 205, or it can move away from the threaded body 102 to disengage the first teeth 205. The locking cavity 303 is a cylindrical cavity concentric with the locking body 300, located outside the threaded cavity 306, and extending towards the motor 400. The arrangement of the second teeth 302 on the locking body 300 can be varied. In one embodiment of the invention, the second teeth 302 are evenly distributed circumferentially on the outer wall of the locking cavity 303 and extend along an axis parallel to the first shaft 401. The shape of the second teeth 302 matches the first teeth 205, and when the locking body 300 is tightened to the correct position, the second teeth 302 engage with the first teeth 205. This effectively improves the situation where the locking body 300 rotates in the opposite direction relative to the first shaft 401 due to machine vibration or external factors encountered when the mounting plate 200 is working, thereby causing the mounting plate 200 to become loose and damaged from the first shaft 401.

[0055] like Figure 1 , Figure 3 , Figure 5 and Figure 7As shown, considering that when the first tooth 205 and the second tooth 302 begin to engage, the threaded body 102 has not yet been fully screwed into the threaded cavity 306, and the thread has not yet been fully engaged, in order to tighten the remaining threaded portion and strengthen the fastening between the locking body 300 and the connector 100, in one embodiment of the present invention, the locking block 203 undergoes elastic deformation. When the plurality of second teeth 302 on the locking body 300 and the plurality of first teeth 205 on the locking block 203 begin to gradually engage, the locking block 203 is deformed by radial compression from the locking body 300, resulting in elastic deformation and slightly opening outward. Thus, during the engagement of the internal thread 304 and the external thread 104, it is convenient to fully screw the threaded body 102 on the connector 100 into the locking body 300, thereby achieving the fastening between the locking body 300 and the connector 100. The locking block 203 can be any elastic material with a certain plastic deformation capability, such as metal or plastic, and those skilled in the art can select appropriate materials for manufacturing as needed. The locking block 203 undergoes elastic deformation, which allows it to easily achieve the desired shape, greatly improving the adaptability of the mounting plate 200 and making it suitable for various sizes of locking bodies 300.

[0056] like Figures 2 to 6 As shown, in one embodiment of the present invention, the connector 100 and the mounting plate 200 are connected by a circumferential stop-locking device. The circumferential stop-locking device can be any device suitable for circumferentially fixing the connector 100 and the mounting plate 200, such as key connections, bolt connections, interference fits, etc. Those skilled in the art can make an adaptive selection according to actual needs. In one embodiment of the present invention, to make the connector 100 more secure within the mounting plate 200, the circumferential stop-locking device includes a seat 101 disposed on the connector 100 and a mounting groove 204 disposed on the mounting plate 200. The shapes of the seat 101 and the mounting groove 204 match, and the seat 101 is inserted into the mounting groove 204. When the connector 100 is snapped into the mounting plate 200, this structure makes it less likely to wobble and loosen within the mounting plate 200. Preferably, considering multiple factors such as manufacturing process and stability, the seat 101 can be a hexagonal boss structure, and the mounting groove 204 can be a hexagonal recess structure. During installation, the base 101 can be inserted into the mounting groove 204, aligning the edge of the base 101 with the inner wall edge of the mounting groove 204. Then, press the base 101 downwards to insert it into the mounting groove 204, thereby fixing it relatively in place within the mounting groove 204. This enhances the tightness between the mounting plate 200 and the connector 100, making them less prone to loosening.

[0057] like Figure 2 , Figure 8 and Figure 9 As shown, Figure 9The diagram shows a schematic of the mounting plate 200 including the housing 500 in one embodiment of the present invention. To facilitate the installation and removal of the locking body 300, in one embodiment of the present invention, the locking body 300 is provided with multiple grip portions 301. The grip portions 301 can be grooves recessed towards the central axis of the locking body 300, or they can be any shape that can be covered by a hand when gripping the grip portion 301. The depth of the recess in the grip portion 301 should be convenient for the operator to hold and conform to ergonomic design. During installation, the operator holds the grip portion 301 and moves the locking body 300 toward the mounting plate 200, causing several second teeth 302 inside the locking body 300 to engage with several first teeth 205 on the locking block 203, thereby preventing the locking body 300 from loosening. Preferably, considering the convenience of the operator's grip, in one embodiment of the present invention, a plurality of grip portions 301 are evenly distributed along the circumferential direction on the outer side wall 305 of the locking body 300, so that the operator can apply a certain force during the rotation of the locking body 300, thereby tightening the locking body 300 onto the threaded body 102, or unscrewing it from the threaded body 102.

[0058] like Figure 1 , Figure 5 , Figure 7 and Figure 9 As shown, in one embodiment of the present invention, a lawnmower (not shown in the figure) is also provided, including a housing 500, a motor 400, and blades 600. The housing 500 is fitted over the outside of the motor 400, providing protection for the motor 400. The blades 600 are mounted on a mounting plate 200. When the lawnmower operates the motor 400 to rotate, the blades 600 located on the mounting plate 200 rotate synchronously with the motor 400, thereby completing the cutting of weeds. The mounting plate 200 of the blades 600 is mounted to the motor shaft via a quick-mount device. This quick-mount device can be any of the quick-mount devices described in the above embodiments. In one embodiment of the present invention, the quick-mount device includes a connector 100, a mounting plate 200, and a locking body 300. The connector 100 is mounted on the first shaft 401 and rotates with the first shaft 401. It has a threaded body 102. The mounting plate 200 is mounted on the connector 100 and rotates with the connector 100. It has a through hole 202 through which the threaded body 102 protrudes. The locking body 300 is located on the side of the mounting plate 200 opposite to the connector 100 and is threadedly connected to the threaded body 102. During the operation of the motor 400, considering that the locking body 300 may easily rotate in the opposite direction and loosen from the threaded body 102, an anti-loosening device is provided between the mounting plate 200 and the locking body 300 to mitigate this issue. The specific implementation of the anti-loosening device is not limited; any device that can effectively prevent the locking body 300 from rotating in the opposite direction during the rotation of the first shaft 401 is applicable.

[0059] like Figure 1 , Figure 4 , Figure 5 and Figure 7 As shown, in one embodiment of the present invention, the anti-loosening device includes a plurality of first teeth 205 disposed on the mounting plate 200 and a plurality of second teeth 302 disposed on the locking body 300. When the locking body 300 tightens the mounting plate 200 onto the connector 100, the plurality of first teeth 205 and the plurality of second teeth 302 engage. During the disassembly of the locking body 300 from the mounting plate 200, the plurality of first teeth 205 and the plurality of second teeth 302 gradually disengage from each other. This effectively improves the phenomenon that the mounting plate 200 may fall off due to the locking body 300 disengaging from the threaded body 102 because of the reverse rotation of the locking body 300 relative to the first shaft 401. This greatly enhances the overall robustness of the quick-installation device and reduces the maintenance costs for enterprises.

[0060] Please continue reading. Figure 9 The mounting plate 200 is adaptable to various applications. For example, it can be the rotating part of a fan (not shown in the figure) with fan blades mounted on it, or the rotating part of a mixer with mixing blades mounted on it. In one embodiment of the invention, when mounted on a lawnmower, the mounting plate 200 can be a blade disc with several blades 600 detachably mounted on it. The blades 600 are evenly distributed around the circumference of the blade disc. The blades 600 and the mounting plate 200 can be connected using bolts 601. The large end of the bolt 601 presses the blades 600 onto the mounting plate 200, and the small end of the bolt 601 passes through the blades 600 and is threaded onto the mounting plate 200. This detachable connection allows operators to easily replace different types of blades 600 as needed on site.

[0061] like Figure 1 and Figure 10 As shown, Figure 10 The diagram shows a schematic of a motor structure including a housing 500 according to an embodiment of the present invention. In one embodiment of the present invention, a mounting cavity 501 is provided on the side of the housing 500 facing the mounting plate 200. A portion of the first shaft 401 passes through the mounting cavity 501 and extends into the connector 100. The mounting cavity 501 and the connector 100 together fit the first shaft 401 inside, so that the first shaft 401 will not be damaged by wear due to external force.

[0062] like Figure 1 and Figure 10As shown, in one embodiment of the present invention, a fixing platform 502 is provided on the outer side of the mounting cavity 501, and a plurality of reinforcing ribs 503 are evenly installed between the fixing platform 502 and the mounting cavity 501. The fixing platform 502 is circular and covers the outer side of the mounting cavity 501. One end of the reinforcing rib 503 is installed on the outer wall of the mounting cavity 501, and the other end is installed on the inner wall of the fixing platform 502 facing the mounting cavity 501. By using the reinforcing ribs 503, the firmness between the mounting cavity 501 and the fixing platform 502 can be greatly enhanced.

[0063] like Figure 1 , Figure 4 and Figure 10 As shown, in one embodiment of the present invention, a housing fixing groove 105 is provided on the side of the connector 100 facing the housing 500. The housing fixing groove 105 is an annular groove. A fixing plug 504 matching the housing fixing groove 105 is provided in the mounting cavity 501 of the housing 500. The fixing plug 504 can be an annular boss. When the connector 100 is installed on the first shaft 401, by inserting the fixing plug 504 into the housing fixing groove 105, the phenomenon of relative movement between the housing 500 and the connector 100 is effectively improved, thereby making the housing 500 and the connector 100 relatively stable.

[0064] In summary, this invention features a simple structure. By installing a locking body on the mounting plate and threading it to the threaded body, the mounting plate is fixed relative to the motor shaft. After the motor starts, the mounting plate rotates synchronously with the motor shaft. During rotation, an anti-loosening device prevents the mounting plate from becoming loose due to the locking body rotating in the opposite direction relative to the motor shaft. Furthermore, during on-site operations, if the mounting plate needs to be disassembled, workers only need to unscrew the locking body to remove it from the threaded body. The mounting plate can be easily removed from the connector without any tools, achieving quick and convenient replacement. This significantly improves the user experience. In addition, this installation method allows for rapid product assembly, greatly improving production line assembly efficiency and enhancing enterprise production efficiency. When the lawnmower of this invention is equipped with a mounting plate using the above installation method, even after the lawnmower has been working for a certain period, if the outside of the locking body is covered with grass clippings, dirt, etc., rotating the locking body allows for timely replacement of the mounting plate, regardless of the environment. Therefore, this invention effectively overcomes the various shortcomings of the prior art and has high industrial application value.

[0065] The above embodiments are merely illustrative of the principles and effects of the present invention and are not intended to limit the present invention. Those skilled in the art can make various modifications and variations without departing from the spirit and scope of the present invention, and such modifications and variations all fall within the scope defined by the appended claims.

Claims

1. A quick installation device for an installation disk, characterized in that, include: A connector is mounted on a first shaft and rotates with the first shaft; it is provided with a threaded body. The mounting plate is mounted on the connector and rotates with the connector. It has a through hole, through which the threaded body protrudes. A locking body is disposed on the side of the mounting plate opposite to the connector and is threadedly mounted on the threaded body; An anti-loosening device is provided between the mounting plate and the locking body; The anti-loosening device includes a plurality of first teeth disposed on the mounting plate and a plurality of second teeth disposed on the locking body. When the locking body tightens the mounting plate onto the connector, the first teeth and the second teeth are engaged. The mounting plate is provided with at least one locking block, which undergoes elastic deformation under the extrusion force of the locking body, and the plurality of first teeth are provided on the locking block; The locking body is provided with multiple gripping parts; The anti-loosening device is used to prevent the locking body from rotating in the opposite direction during the rotation of the first shaft.

2. The quick installation device according to claim 1, characterized in that, There are multiple locking blocks, which are evenly distributed in a circumferential shape on the outside of the through hole. The plurality of first teeth are disposed on the side of each locking block facing the through hole. The locking body is provided with a locking cavity, and the plurality of second teeth are disposed on the outer wall of the locking cavity.

3. The quick installation device according to claim 1, characterized in that, The plurality of second teeth are evenly distributed along the circumferential direction.

4. The quick installation device according to claim 1, characterized in that, The plurality of gripping parts are evenly distributed on the side wall of the locking body.

5. The quick installation device according to claim 1, characterized in that, The connector is interference-fitted onto the first shaft.

6. The quick installation device according to claim 1, characterized in that, The first shaft is a motor shaft, the connector's base is mounted on the motor shaft, and the threaded part is located on the side of the base away from the motor.

7. The quick installation device according to claim 6, characterized in that, The connector is connected to the mounting plate via a circumferential stop plug-in device.

8. The quick installation device according to claim 7, characterized in that, The circumferential stop plug-in device includes a mounting groove disposed on the mounting plate and a seat disposed on the connector. The mounting groove matches the shape of the seat, and the seat is inserted into the mounting groove.

9. A lawnmower, comprising a housing, a motor, and blades, characterized in that, The mounting disc of the blade is mounted to the motor shaft of the motor via a quick-mounting device for the mounting disc, the quick-mounting device for the mounting disc comprising: A connector is mounted on the motor shaft and rotates with the motor shaft; it is provided with a threaded body. The mounting plate is mounted on the connector and rotates with the connector. It has a through hole, through which the threaded body protrudes. A locking body is disposed on the side of the mounting plate opposite to the connector and is threadedly mounted on the threaded body; An anti-loosening device is provided between the mounting plate and the locking body; The anti-loosening device includes a plurality of first teeth disposed on the mounting plate and a plurality of second teeth disposed on the locking body. When the locking body tightens the mounting plate onto the connector, the first teeth and the second teeth are engaged. The mounting plate is provided with at least one locking block, which undergoes elastic deformation under the extrusion force of the locking body, and the plurality of first teeth are provided on the locking block; The locking body is provided with multiple gripping parts; The anti-loosening device is used to prevent the locking body from rotating in the opposite direction during the rotation of the motor shaft.

10. The lawnmower according to claim 9, characterized in that, The housing has a mounting cavity on the side facing the mounting plate.

11. The lawnmower according to claim 10, characterized in that, A fixing platform is provided on the outside of the mounting cavity, and multiple reinforcing ribs are evenly installed between the fixing platform and the mounting cavity.

12. The lawnmower according to claim 9, characterized in that, The connector has a housing fixing groove on the side facing the housing.

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