Self-propelled work machine

Abstract

This application relates to the field of lawn mowing equipment technology, specifically disclosing a self-propelled operating device, which includes a main body, a walking component, a cutter head assembly, a flexible shielding component, and a lifting module. The walking component is located on the main body and is used to move the main body. The cutter head assembly is located on the main body and is used to cut grass vegetation. The flexible shielding component is located at the bottom of the main body and between the main body and the cutter head assembly, with its edge fixed to the bottom of the main body to cover the bottom of the main body and prevent grass clippings from adhering to it. The lifting module is located on the main body and connected to the flexible shielding component, and is used to drive the flexible shielding component to stretch or spring back in the vertical direction, so that grass clippings adhering to the flexible shielding component fall off. The self-propelled operating device of this application reduces the probability of grass clogging at the bottom, allows the cutter head assembly to work normally, and ensures cutting efficiency and cutting quality.

Description

Technical Field

[0001] This application relates to the field of lawn mowing equipment technology, specifically to a self-propelled operating device. Background Technology

[0002] Currently, during the mowing process, the grass clippings cut by self-propelled equipment such as lawnmowers tend to adhere to and clog the bottom of the equipment, resulting in a decrease in cutting efficiency and quality, or even failure to operate normally. Utility Model Content

[0003] In view of the above, it is necessary to provide a self-propelled operating device to reduce the probability of grass blockage at the bottom and ensure cutting efficiency and cutting quality.

[0004] This application provides a self-propelled operating device, including: a device body; a walking component disposed on the device body for driving the device body to move; a cutter head assembly disposed on the device body for cutting grass vegetation; a flexible shielding member disposed at the bottom of the device body and located between the device body and the cutter head assembly, the edge of the flexible shielding member being fixed to the bottom of the device body for covering the bottom of the device body to prevent grass clippings from adhering to the bottom of the device body; and a lifting module disposed on the device body and connected to the flexible shielding member, the lifting module being used to drive the flexible shielding member to stretch or spring back in the vertical direction to cause the grass clippings adhering to the flexible shielding member to fall off.

[0005] In some embodiments, the output end of the lifting module is connected to the middle of the flexible shielding member.

[0006] In some embodiments, the lifting module is connected to the cutter head assembly, the flexible shielding member is connected to the cutter head assembly, and the lifting module drives the cutter head assembly to move in the vertical direction to drive the flexible shielding member to move.

[0007] In some embodiments, the flexible shielding element is an elastomer sheet, which can be repeatedly stretched and rebounded under the drive of the lifting module.

[0008] In some embodiments, the four edges of the flexible shield are sealed to the bottom of the device body.

[0009] In some embodiments, the lifting module is located on the side of the flexible shield facing the main body of the device; the self-propelled operating device further includes a cutting drive, the cutting drive includes a housing and a drive shaft inserted into the housing, the housing is connected to the lifting module, and the drive shaft passes through the flexible shield and is connected to the cutter head assembly.

[0010] In some embodiments, the self-propelled operating device further includes a connector, which is connected to the drive shaft and located on the side of the flexible shield opposite to the lifting module. The drive shaft is connected to the cutter head assembly through the connector.

[0011] In some embodiments, a storage groove is provided at the bottom of the main body of the device, the blade assembly is disposed in the storage groove, and the edge of the flexible shield is fixed to the inner wall of the storage groove.

[0012] In some embodiments, the distance between the location where the flexible shield and the inner wall of the storage groove are connected and the bottom of the storage groove is less than the distance between the location where the flexible shield and the inner wall of the storage groove are connected and the bottom wall of the device body.

[0013] In some embodiments, the bottom of the device body is provided with a plurality of combing grooves communicating with the storage groove, and the arrangement direction of the plurality of combing grooves intersects with the moving direction of the device body.

[0014] The self-propelled cutting device of this embodiment comprises a main body, a walking component, a lifting module, a flexible shield, and a cutter head assembly. When the device is cutting grass, the flexible shield covers the bottom of the main body and is located between the main body and the cutter head assembly. This prevents grass clippings from adhering to the bottom of the main body. When a large amount of grass clippings adheres to the flexible shield, the lifting module can drive the flexible shield to stretch or spring back vertically. This increases or decreases the distance between the points where the flexible shield connects to the grass clippings, while the distance between the points remains constant. This disrupts the connection between the grass clippings and the flexible shield, causing them to fall off and clean up the clippings. Thus, the self-propelled cutting device of this embodiment reduces the likelihood of grass blockage at the bottom, allowing the cutter head assembly to function normally and ensuring cutting efficiency and quality. Attached Figure Description Figure 1 This is a three-dimensional structural diagram of the self-propelled operating equipment provided in the embodiments of this application.

[0015] Figure 2 yes Figure 1 The diagram shows a three-dimensional structure of the self-propelled operating equipment, including the chassis, lifting module, flexible shielding component, cutting drive component, connecting component, and mounting component.

[0016] Figure 3 yes Figure 1 The diagram shows a three-dimensional view of the chassis, lifting module, flexible shielding component, cutting drive component, connecting component, and mounting component of the self-propelled operating equipment, taken from another angle.

[0017] Figure 4 yes Figure 3 A schematic diagram of the three-dimensional structure after the flexible shielding component is removed.

[0018] Figure 5 yes Figure 3 A cross-sectional view along the V-V direction.

[0019] Figure 6 yes Figure 3 A cross-sectional view along the V-V direction when the lifting module drives the flexible shielding component to stretch vertically.

[0020] Explanation of main component symbols: Self-propelled operating equipment 100, equipment body 10, main body section 11, chassis 12, storage slot 121, combing slot 122, walking component 20, hub motor 21, roller 22, lifting module 30, rotation drive component 31, lead screw 32, lifting frame 33, guide rod 34, moving component 35, output end 36, flexible shielding component 40, cutter head assembly 50, disc body 51, cutting blade 52, cutting drive component 60, housing 61, drive shaft 62, connecting component 70, mounting component 80, through hole 81, vertical direction F. Detailed Implementation

[0021] The embodiments of this application are described in detail below. Examples of these embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals denote the same or similar elements or elements having the same or similar functions throughout. The embodiments described below with reference to the accompanying drawings are exemplary and are only used to explain this application, and should not be construed as limiting this application.

[0022] In the description of this application, it should be understood that the terms indicating orientation or positional relationship are based on the orientation or positional relationship shown in the accompanying drawings, and are only for the convenience of describing this application and simplifying the description, 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, and therefore should not be construed as a limitation of this application. Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of indicated technical features. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of the stated features. In the description of this application, it should be noted that "a plurality of" means two or more, unless otherwise explicitly specified.

[0023] In the description of this application, it should be noted that, unless otherwise explicitly specified and limited, the term "connection" should be interpreted broadly. For example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection, an electrical connection, or a connection that allows communication between the two components; it can be a direct connection or an indirect connection through an intermediate medium; it can be the internal communication between two components or the interaction between two components. Those skilled in the art can understand the specific meaning of the above terms in this application according to the specific circumstances.

[0024] The following will describe some embodiments of this application in detail with reference to the accompanying drawings.

[0025] Please see Figure 1 This application provides a self-propelled working device 100 for cutting grass vegetation. The self-propelled working device 100 can be a lawnmower robot, a ride-on lawnmower, etc. For ease of understanding, this application uses a lawnmower robot as an example for illustration; however, this is not intended to limit the scope of this application.

[0026] Please see Figure 1 , Figure 2 and Figure 3 The self-propelled operating equipment 100 includes a main body 10, a walking component 20, a lifting module 30, a flexible shielding component 40, and a cutter head assembly 50.

[0027] A walking assembly 20 is disposed on the main body 10 of the equipment, and is used to move the main body 10. A cutter head assembly 50 is disposed on the main body 10 of the equipment, and is used to cut grass vegetation. A flexible shielding member 40 is disposed at the bottom of the main body 10 and located between the main body 10 and the cutter head assembly 50. The edge of the flexible shielding member 40 is fixed to the bottom of the main body 10, and the flexible shielding member 40 is used to cover the bottom of the main body 10 to prevent grass clippings from adhering to the bottom of the main body 10. A lifting module 30 is disposed on the main body 10 and connected to the flexible shielding member 40. The lifting module 30 is used to drive the flexible shielding member 40 to stretch or spring back in the vertical direction F, so that the grass clippings adhering to the flexible shielding member 40 fall off.

[0028] When the self-propelled mowing equipment 100 performs lawn mowing operations, the flexible shielding member 40 covers the bottom of the equipment body 10, preventing grass clippings from adhering to the bottom of the equipment body 10. The grass clippings can only adhere to the flexible shielding member 40. When a large amount of grass clippings adhere to the flexible shielding member 40, the lifting module 30 drives the flexible shielding member 40 to stretch or rebound in the vertical direction F. At this time, the distance between the points where the flexible shielding member 40 connects to the grass clippings increases or decreases accordingly, while the distance between the points where the grass clippings connect to the flexible shielding member 40 remains unchanged. This breaks the bonding relationship between the grass clippings and the flexible shielding member 40, causing the grass clippings to fall off the flexible shielding member 40, thus achieving the result of cleaning the grass clippings. In this way, the self-propelled mowing equipment 100 of this embodiment reduces the probability of grass clogging at the bottom, allowing the cutter head assembly 50 to work normally and ensuring cutting efficiency and cutting quality. In addition, the lifting module 30 can automatically clean the grass clippings by driving the flexible shielding member 40 to stretch or rebound in the vertical direction F, thereby improving the user experience.

[0029] In some embodiments, when the height of the lowest point of the flexible shield 40 is more than half of the adjustable height of the lifting module 30, the lifting module 30 breaks the bond between the grass clippings and the flexible shield 40 by driving the flexible shield 40 to stretch in the vertical direction F. When the height of the lowest point of the flexible shield 40 is less than half of the adjustable height of the lifting module 30, the lifting module 30 breaks the bond between the grass clippings and the flexible shield 40 by driving the flexible shield 40 to rebound in the vertical direction F.

[0030] In some embodiments, the lifting module 30 drives the flexible shield 40 to repeatedly stretch and rebound in the vertical direction F within an adjustable height range to disrupt the bonding relationship between the grass clippings and the flexible shield 40.

[0031] In some embodiments, the four edges of the flexible shield 40 are sealed to the bottom of the device body 10. This effectively prevents grass clippings from entering between the flexible shield 40 and the device body 10, thereby reducing the likelihood of grass clogging at the bottom of the device body 10.

[0032] In some embodiments, a storage groove 121 is provided at the bottom of the device body 10, the cutter head assembly 50 is disposed in the storage groove 121, and the edge of the flexible shield 40 is fixed to the inner wall of the storage groove 121.

[0033] In this embodiment, when the self-propelled working device 100 is performing grass cutting operations, the blade assembly 50 and the flexible shield 40 are prone to collisions with hard objects such as stones, which can cause damage to the blade assembly 50 and the flexible shield 40. By opening a storage groove 121 at the bottom of the device body 10 and placing the blade assembly 50 and the flexible shield 40 in the storage groove 121, the storage groove 121 can protect the blade assembly 50 and the flexible shield 40, thereby reducing the probability of the blade assembly 50 and the flexible shield 40 being damaged due to collisions with hard objects.

[0034] In some embodiments, the device body 10 includes a main body 11 and a chassis 12. The chassis 12 is mounted on the bottom of the main body 11, the walking assembly 20 is connected to the main body 11, the lifting module 30 is disposed on the chassis 12, and the storage slot 121 is opened on the side of the chassis 12 away from the main body 11.

[0035] In this embodiment, by setting the specific structure of the main body 10, it is convenient to install the walking component 20, the lifting module 30, the cutter head component 50 and the flexible shielding component 40, and to facilitate the disassembly and assembly of the self-propelled operation equipment 100.

[0036] In some embodiments, the walking assembly 20 includes a hub motor 21 and a roller 22. The hub motor 21 is connected to the main body 11 of the device body 10, and the roller 22 is connected to the hub motor 21. This improves the accuracy of the walking assembly 20 in moving the device body 10.

[0037] In some other embodiments, the walking component 20 may also be a tracked walking mechanism, and this application embodiment does not specifically limit this.

[0038] Please refer to the following: Figure 4 , Figure 5 and Figure 6 In some embodiments, the four edges of the flexible shield 40 are sealed to the inner periphery of the collection groove 121. This prevents grass clippings from entering between the flexible shield 40 and the bottom of the collection groove 121, thereby reducing the likelihood of grass clogging between them. Furthermore, this design increases the telescopic space of the flexible shield 40, thereby improving the efficiency of separating the flexible shield 40 from grass clippings under the drive of the lifting module 30.

[0039] In some other embodiments, the four edges of the flexible shield 40 may also be sealed to the bottom of the storage groove 121, which is not specifically limited in this application embodiment.

[0040] In some embodiments, the distance between the position where the flexible shielding member 40 and the inner wall of the storage groove 121 are connected and the bottom of the storage groove 121 is less than the distance between the position where the flexible shielding member 40 and the inner wall of the storage groove 121 are connected and the bottom wall of the device body 10.

[0041] In this embodiment, this design can provide sufficient installation and rotation space for the cutter head assembly 50, as well as sufficient extension and retraction space for the flexible shield 40, thereby improving the cutting efficiency and cutting quality of the cutter head assembly 50 and reducing the probability of grass clippings clogging the collection slot 121.

[0042] In some embodiments, the bottom of the device body 10 is provided with a plurality of combing grooves 122 that communicate with the storage groove 121, and the arrangement direction of the plurality of combing grooves 122 intersects with the moving direction of the device body 10.

[0043] In this embodiment, by setting the combing groove 122, it is easy for grass vegetation to enter the storage groove 121 and come into contact with the cutter head assembly 50, and it is easy to straighten up the fallen grass vegetation, thereby improving the cutting efficiency and cutting quality of the cutter head assembly 50.

[0044] In some embodiments, when the device body 10 includes a body portion 11 and a chassis 12, a plurality of combing grooves 122 are formed at the bottom of the chassis 12.

[0045] In some embodiments, the angle between the arrangement direction of the plurality of combing grooves 122 and the moving direction of the device body 10 is an acute angle.

[0046] In some other embodiments, the angle between the arrangement direction of the plurality of combing grooves 122 and the moving direction of the device body 10 is a right angle or an obtuse angle, and this application embodiment does not specifically limit this.

[0047] In some embodiments, the flexible shielding member 40 is an elastomer sheet, which can be repeatedly stretched and rebounded under the drive of the lifting module 30.

[0048] In this embodiment, because the elastomer sheet has uniform thickness, good tensile strength and resilience, and long service life, the probability of grass blockage at the bottom of the self-propelled operating equipment 100 is reduced, ensuring the cutting efficiency and cutting quality of the self-propelled operating equipment 100, and improving the service life of the self-propelled operating equipment 100.

[0049] In some embodiments, the flexible shielding member 40 is made of elastic materials such as silicone or rubber. This improves the efficiency of separating the flexible shielding member 40 from grass clippings under the drive of the lifting module 30 and extends the service life of the flexible shielding member 40.

[0050] In other embodiments, the flexible shielding member 40 may also include multiple rigid structures (not shown), arranged in an array, with each rigid structure movably connected to an adjacent rigid structure. For example, the rigid structure may be a hinge, with multiple hinge segments hinged together to form the flexible shielding member 40. When the lifting module 30 drives the flexible shielding member 40 to stretch or spring back in the vertical direction F, the flexible shielding member 40 can also separate from the grass clippings. This application does not specifically limit this aspect.

[0051] In some embodiments, the output end 36 of the lifting module 30 is connected to the middle of the flexible shield 40.

[0052] In this embodiment, by connecting the output end 36 of the lifting module 30 to the middle part of the flexible shield 40, when the lifting module 30 drives the flexible shield 40 to stretch or rebound in the vertical direction F, the stretching or elasticity of each part of the flexible shield 40 is more uniform. This effectively avoids certain areas of the flexible shield 40 from being difficult to separate from grass clippings due to their small deformation range, thereby improving the ability and efficiency of the flexible shield 40 to separate from grass clippings under the drive of the lifting module 30.

[0053] In some embodiments, the lifting module 30 is connected to the cutter head assembly 50, and the flexible shielding member 40 is connected to the cutter head assembly 50. The flexible shielding member 40 is connected to the lifting module 30 through the cutter head assembly 50. The lifting module 30 drives the cutter head assembly 50 to move in the vertical direction F so as to drive the flexible shielding member 40 to move.

[0054] In this embodiment, the lifting module 30 can simultaneously drive the cutter head assembly 50 and the flexible shield 40 to move in the vertical direction F, thereby facilitating the adjustment of the cutting height of the cutter head assembly 50, improving the cutting quality of the cutter head assembly 50, and reducing the probability of grass blockage at the bottom of the self-propelled operating equipment 100.

[0055] Please refer to it again. Figures 2 to 6In some embodiments, the lifting module 30 includes a rotation drive 31, a lead screw 32, a lifting frame 33, a guide rod 34, and a moving component 35. The lead screw 32 is mounted on the chassis 12 and rotates around the vertical direction F. The rotation drive 31 can be a drive motor. The rotation drive 31 drives the lead screw 32 to rotate through gear transmission (not shown). The lead screw 32 passes through the lifting frame 33 and is threadedly connected to the lifting frame 33. A ball bearing (not shown) can be set between the lead screw 32 and the lifting frame 33, so that the lead screw 32, the lifting frame 33 and the ball bearing form a ball screw structure. The moving part 35 is connected to the lifting frame 33. The moving part 35 moves up and down along the vertical direction F under the drive of the lifting frame 33. The guide rod 34 slides through the lifting frame 33 and the moving part 35 along the vertical direction F and is connected to the chassis 12. The guide rod 34 guides the movement direction of the moving part 35 and the lifting frame 33. The cutter head assembly 50 is connected to the moving part 35 and moves along the vertical direction F under the drive of the moving part 35. The moving part 35 is the output end 36 of the lifting module 30.

[0056] In this embodiment, by setting the specific structure of the lifting module 30, the accuracy of the lifting module 30 in driving the cutter head assembly 50 and the flexible shielding member 40 to move in the vertical direction F is improved. Furthermore, when there are multiple cutter head assemblies 50, only the number of moving members 35 needs to be increased accordingly, and the lifting module 30 can simultaneously drive multiple cutter head assemblies 50 to move in the vertical direction F, thereby helping to save costs.

[0057] In some other embodiments, the lifting module 30 may also be a telescopic cylinder, a telescopic push rod, etc. In this case, the output end 36 is the output shaft of the lifting module 30 (not shown in the figure). This application does not specifically limit this aspect.

[0058] In some embodiments, the lifting module 30 is located on the side of the flexible shield 40 facing the main body 10. The self-propelled operating device 100 also includes a cutting drive 60, which includes a housing 61 and a drive shaft 62 inserted into the housing 61. The housing 61 is connected to the lifting module 30, and the drive shaft 62 passes through the flexible shield 40 and is connected to the cutter head assembly 50.

[0059] In this embodiment, this configuration facilitates the installation of the cutting drive unit 60 and enables the lifting module 30 to simultaneously drive the cutting drive unit 60, the blade assembly 50, and the flexible shielding member 40 to move in the vertical direction F. The structure is simple and facilitates the adjustment of the height of the blade assembly 50 and the cutting drive unit 60, thereby improving the cutting efficiency and grass-cutting quality of the blade assembly 50.

[0060] In some embodiments, the cutting drive 60 is a drive motor.

[0061] In some other embodiments, the cutting drive 60 may also be a power component such as a pneumatic motor, and this application does not specifically limit this.

[0062] In some embodiments, when the lifting module 30 includes a rotation drive 31, a lead screw 32, a lifting frame 33, a moving member 35, and a guide rod 34, the housing 61 of the cutting drive 60 is connected to the moving member 35, and the cutting drive 60 can be installed inside the moving member 35. The drive shaft 62 of the cutting drive 60 passes through the moving member 35, and the flexible shielding member 40 is connected to the cutter head assembly 50.

[0063] In some other embodiments, when the housing 61 of the cutting drive 60 protrudes from the side of the movable member 35 facing the flexible shield 40, the flexible shield 40 can also be connected to the housing 61 of the cutting drive 60 and connected to the movable member 35 through the housing 61. This application does not specifically limit this aspect.

[0064] In some embodiments, the self-propelled operating device 100 further includes a connector 70, which is connected to the drive shaft 62 and located on the side of the flexible shield 40 away from the lifting module 30. The drive shaft 62 is connected to the cutter head assembly 50 through the connector 70.

[0065] In this embodiment, the connection between the cutter head assembly 50 and the drive shaft 62 of the rotation drive 31 is improved by providing the connector 70.

[0066] In some embodiments, the connector 70 can be a flange coupling, thereby improving the convenience and stability of connecting the cutter head assembly 50 to the drive shaft 62 of the rotary drive 31.

[0067] In some embodiments, the self-propelled operating device 100 further includes a mounting member 80, which is disposed in the middle of the flexible shielding member 40. The mounting member 80 has a through hole 81, through which the drive shaft 62 of the cutting drive member 60 passes and is connected to the cutter head assembly 50. The mounting member 80 is connected to the moving member 35 of the lifting module 30, and the flexible shielding member 40 is connected to the lifting module 30 through the mounting member 80.

[0068] In this embodiment, by setting the mounting component 80, the convenience of connecting the flexible shield 40 and the lifting module 30 is improved, the contact area between the flexible shield 40 and the lifting module 30 is increased, and the probability of damage to the flexible shield 40 is reduced.

[0069] In some embodiments, the mounting element 80 can be a flange structure. This further improves the ease of connecting the flexible shielding element 40 to the lifting module 30.

[0070] Please refer to it again. Figure 1In some embodiments, the cutter head assembly 50 includes a disc body 51 and a plurality of cutting blades 52. The disc body 51 is connected to the moving part 35 of the lifting module 30, and the plurality of cutting blades 52 are spaced apart along the circumferential direction of the disc body 51 at its edge. This improves the cutting efficiency and cutting quality of the cutter head assembly 50.

[0071] In summary, the self-propelled operating equipment 100 of this application embodiment, by setting up an equipment body 10, a walking component 20, a lifting module 30, a flexible shielding component 40, and a cutter head assembly 50, when the self-propelled operating equipment 100 performs grass cutting operations, since the flexible shielding component 40 covers the bottom of the equipment body 10 and is located between the equipment body 10 and the cutter head assembly 50, the flexible shielding component 40 prevents grass clippings from adhering to the bottom of the equipment body 10. When there is a lot of grass clippings adhering to the flexible shielding component 40, since the lifting module 30 can drive the flexible shielding component 40 to stretch or rebound in the vertical direction F, the distance between the various points where the flexible shielding component 40 connects to the grass clippings increases or decreases accordingly, while the distance between the various points where the grass clippings connect to the flexible shielding component 40 remains unchanged, thereby breaking the bonding relationship between the grass clippings and the flexible shielding component 40, and the grass clippings fall off the flexible shielding component 40, achieving the result of cleaning the grass clippings. Thus, the self-propelled operating equipment 100 of this application embodiment reduces the probability of grass blockage at the bottom, allowing the cutter head assembly 50 to work normally and ensuring cutting efficiency and cutting quality.

[0072] It will be apparent to those skilled in the art that this application is not limited to the details of the exemplary embodiments described above, and that this application can be implemented in other specific forms without departing from the spirit or essential characteristics of this application. Therefore, the embodiments should be regarded as exemplary and non-limiting in all respects, and the scope of this application is defined by the appended claims rather than the foregoing description. Thus, all variations falling within the meaning and scope of equivalents of the claims are intended to be embraced within this application.

[0073] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of this application and are not intended to limit it. Although this application has been described in detail with reference to preferred embodiments, those skilled in the art should understand that modifications or equivalent substitutions can be made to the technical solutions of this application without departing from the spirit and scope of the technical solutions of this application.

Claims

1. A self-propelled operating device, characterized in that, include: Equipment body; A walking component, located on the main body of the device, is used to drive the main body of the device to move; A cutter head assembly, located on the main body of the device, is used for cutting grassy vegetation; A flexible shielding element is disposed at the bottom of the main body of the equipment and located between the main body of the equipment and the cutter head assembly. The edge of the flexible shielding element is fixed to the bottom of the main body of the equipment and is used to cover the bottom of the main body of the equipment to prevent grass clippings from adhering to the bottom of the main body of the equipment. and A lifting module is provided on the main body of the device and connected to the flexible shield. The lifting module is used to drive the flexible shield to stretch or rebound in the vertical direction so that the grass clippings attached to the flexible shield fall off.

2. The self-propelled operating equipment according to claim 1, characterized in that, The output end of the lifting module is connected to the middle of the flexible shielding component.

3. The self-propelled operating equipment according to claim 1, characterized in that, The lifting module is connected to the cutter head assembly, and the flexible shielding member is connected to the cutter head assembly. The lifting module drives the cutter head assembly to move in the vertical direction to drive the flexible shielding member to move.

4. The self-propelled operating equipment according to claim 1, characterized in that, The flexible shielding component is an elastomer sheet, which can be repeatedly stretched and rebounded under the drive of the lifting module.

5. The self-propelled operating equipment according to claim 1, characterized in that, The four edges of the flexible shield are all sealed to the bottom of the main body of the device.

6. The self-propelled operating equipment according to claim 1, characterized in that, The lifting module is located on the side of the flexible shield facing the main body of the equipment; the self-propelled operating equipment also includes a cutting drive, which includes a housing and a drive shaft inserted into the housing. The housing is connected to the lifting module, and the drive shaft passes through the flexible shield and is connected to the cutter head assembly.

7. The self-propelled operating equipment according to claim 6, characterized in that, The self-propelled operating equipment also includes a connector, which is connected to the drive shaft and located on the side of the flexible shield that is away from the lifting module. The drive shaft is connected to the cutter head assembly through the connector.

8. The self-propelled operating equipment according to claim 1, characterized in that, The bottom of the main body of the device has a storage groove, the cutter head assembly is disposed in the storage groove, and the edge of the flexible shield is fixed to the inner wall of the storage groove.

9. The self-propelled operating equipment according to claim 8, characterized in that, The distance between the location where the flexible shielding component and the inner wall of the storage groove are connected and the bottom of the storage groove is less than the distance between the location where the flexible shielding component and the inner wall of the storage groove are connected and the bottom wall of the main body of the device.

10. The self-propelled operating device according to claim 8, characterized in that, The bottom of the main body of the device has multiple combing grooves that communicate with the storage groove, and the arrangement direction of the multiple combing grooves intersects with the moving direction of the main body of the device.

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