Self-cleaning type mowing device
By designing a self-cleaning lawn mowing device, the adjustable spacing structure and air pump are used to generate airflow to recycle the grass, solving the problem of difficult grass recycling after mowing and improving the efficiency of garden maintenance.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- 石家庄市园林绿化管护中心(石家庄市园林绿化巡查大队)
- Filing Date
- 2025-05-12
- Publication Date
- 2026-04-17
AI Technical Summary
Existing lawn mowing equipment makes it difficult to recover the cut grass after mowing, leading to cleaning difficulties and affecting the efficiency of garden maintenance.
Design a self-cleaning lawn mowing device. Through the coordination of the adjustable distance structure and air pump, the distance between the mowing disc and the ground can be adjusted. The airflow is used to drive the cut grass into the annular groove for recycling, avoiding manual cleaning.
It enables automatic recycling of grass during mowing, improving garden maintenance efficiency and reducing subsequent manual cleanup work.
Smart Images
Figure CN224124680U_ABST
Abstract
Description
Technical Field
[0001] This application belongs to the field of garden maintenance technology, specifically relating to a self-cleaning lawn mowing device. Background Technology
[0002] Landscape plants refer to plant materials used in landscaping, and their arrangement directly affects the quality of the project and the fulfillment of the landscape's functions. During the planting process, regular maintenance is necessary to ensure the stable growth of landscape plants and enhance their ornamental effect. One common landscaping maintenance method is lawn mowing, which involves cutting away excessively tall or unevenly growing grass to ensure an overall visual appeal and prevent tall grass from blocking sunlight and affecting the growth of other plants.
[0003] In the prior art, lawn mowing equipment typically includes a base that can move along the ground and a mowing disc that is rotatably mounted on the base; the outer circumference of the mowing disc has serrations, and the mowing purpose can be achieved by the serrations contacting the grass and driving the mowing disc to rotate.
[0004] The inventors discovered that during the mowing process using existing technology, the cut grass is thrown out. During the later cleanup, because the grass is the same color as the lawn, it is difficult to distinguish it by hand. Therefore, there are technical problems such as difficulty in recycling the grass after mowing and poor cleanup effect. Utility Model Content
[0005] This application provides a self-cleaning lawn mowing device, which aims to collect the cut grass while mowing, so as to avoid subsequent manual cleaning and improve the efficiency of garden maintenance.
[0006] To achieve the above objectives, the technical solution adopted in this application is as follows:
[0007] A self-cleaning lawn mowing device is provided, comprising:
[0008] A base for horizontal movement above the ground; a mounting seat is provided on the lower side of the base, and an adjustable distance structure is provided between the mounting seat and the base, the adjustable distance structure being used to drive the mounting seat to move relative to the base in the vertical direction; and an annular groove surrounding the mounting seat is also provided on the lower side of the base.
[0009] A mowing disc is disposed on the lower side of the mounting base, with its surface facing up and down; the mowing disc is rotatably connected to the mounting base in the up and down direction, and a driving component is drively connected to the mowing disc; and
[0010] An air pump is fixedly mounted on the base and is connected to the annular groove through an air inlet pipe. When the air pump is started, the gas under the base enters the air inlet pipe through the annular groove and is discharged through the air pump. The grass cut by the mowing disc on the outer periphery will enter the annular groove with the airflow.
[0011] In one possible implementation, the lower side of the base has a guide groove, and the mounting base is slidably inserted into the guide groove; furthermore, the mounting base also includes:
[0012] A guide rod is fixedly connected to the mounting base; the axial direction of the guide rod is parallel to the vertical direction, and the guide rod passes through the bottom of the guide groove and extends to the upper side of the base.
[0013] In one possible implementation, the adjustment structure includes:
[0014] A fixing nut is fixedly connected to the base, and its axis is parallel to the vertical direction; and
[0015] A drive screw is rotatably connected to the mounting base in the up-down direction and is threadedly connected to the fixing nut so that when it rotates, the mounting base moves relative to the base.
[0016] In one possible implementation, the base has a reserved hole that extends through the vertical direction, and the upper side of the base has a recessed groove that is coaxially connected with the reserved hole.
[0017] The fixing nut is fixedly embedded in the sinking groove; the transmission screw is inserted into the reserved hole and threadedly connected to the fixing nut.
[0018] In one possible implementation, the upper side of the mounting base is provided with a receiving groove, and the driving component is a rotating motor fixedly installed in the receiving groove;
[0019] The power output shaft of the rotating motor is parallel to the vertical direction, and its power output end extends downward through the bottom of the receiving groove and out to connect with the mowing disc.
[0020] In one possible implementation, a cover is fixedly fitted into the opening of the receiving groove, and the cover abuts against the upper side of the rotating motor to prevent the rotating motor from disengaging from the receiving groove.
[0021] In one possible implementation, the upper side of the base has an annular hole communicating with the annular groove, and the base further includes:
[0022] A sealing cylinder is fixedly inserted into the annular hole, and its insertion end face has an annular cavity communicating with the annular groove;
[0023] The air intake pipe is fixedly connected to the sealing cylinder and communicates with the annular cavity.
[0024] In one possible implementation, both the outer and inner circumferential surfaces of the sealing cylinder have protrusions; the upper side of the base has two bends located inside and outside the annular hole, respectively.
[0025] The two bent portions are adapted to engage with the two protrusions respectively to restrict the movement of the sealing cylinder relative to the base.
[0026] In one possible implementation, the base has rollers rotatably connected thereto, and handrails fixedly connected thereto and extending upwards at an angle.
[0027] In one possible implementation, the opening of the annular groove has multiple baffles; the multiple baffles are spaced around the mounting base, and each baffle is fixedly connected to the base.
[0028] In this embodiment, the relative position of the mounting base and the ground can be adjusted by the adjustable distance structure to adapt the distance between the mowing disc and the ground, thereby accommodating grass cutting operations at different heights. Furthermore, the driving component moves the mowing disc, allowing the grass on the horizontal plane where the mowing disc is located to be cut. The cut grass is thrown to the outside of the mounting base and passes directly below the annular groove. By activating the air pump, gas from the underside of the base enters the air intake pipe through the annular groove. If grass passes directly below the annular groove, it will be carried by the airflow into the annular groove, thus cleaning up the cut grass.
[0029] The self-cleaning lawn mowing device provided in this embodiment, compared with the prior art, can complete lawn mowing through the cooperation of the drive component and the mowing disc, and can achieve the removal of grass at different heights through the cooperation of the adjustable distance structure and the mounting base. On this basis, it can also form a directional airflow by drawing gas with an air pump, and this airflow can carry the grass that is thrown out after mowing into the annular groove to achieve the technical purpose of grass recovery, while eliminating the need for subsequent manual cleaning and improving the efficiency of garden maintenance. Attached Figure Description
[0030] To more clearly illustrate the technical solutions in the embodiments of this application, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this application. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.
[0031] Figure 1A three-dimensional structural diagram of the self-cleaning lawn mowing device provided in the embodiments of this application;
[0032] Figure 2 for Figure 1 A magnified view of a portion of the middle circle A;
[0033] Figure 3 for Figure 1 Front view;
[0034] Figure 4 For along Figure 3 Cross-sectional view of the middle BB line;
[0035] Figure 5 for Figure 1 A bottom view;
[0036] Figure 6 For along Figure 5 Cross-sectional view of the CC line;
[0037] Figure 7 This is a three-dimensional structural diagram of the air pump and sealing cylinder combination used in the embodiments of this application;
[0038] Figure 8 This is a three-dimensional structural diagram of the mowing disc and mounting base used in the embodiments of this application from an exploded view.
[0039] Figure 9 This is a partially enlarged cross-sectional view of the base and fixing nut used in the embodiments of this application from an exploded perspective;
[0040] Figure 10 This is a partially enlarged cross-sectional view of the base and sealing cylinder used in the embodiments of this application from an explosion perspective;
[0041] Explanation of reference numerals in the attached drawings: 1. Base; 11. Annular groove; 111. Material stop bar; 12. Guide groove; 13. Reserved hole; 131. Sinking groove; 14. Annular hole; 15. Bend; 16. Roller; 17. Handrail; 2. Mowing disc; 21. Drive component; 3. Air pump; 31. Air inlet pipe; 4. Mounting base; 41. Guide rod; 42. Receiving groove; 421. Cover; 5. Adjustable distance structure; 51. Fixing nut; 52. Transmission screw; 6. Sealing cylinder; 61. Annular cavity; 62. Protrusion. Detailed Implementation
[0042] To make the technical problems, technical solutions, and beneficial effects to be solved by this application clearer, the following detailed description is provided in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative and are not intended to limit the scope of this application.
[0043] It should be noted that when a component is referred to as being "fixed to" or "set on" another component, it can be directly on or indirectly on that other component. When a component is referred to as being "connected to" another component, it can be directly connected to or indirectly connected to that other component.
[0044] It should be understood that the terms "length", "width", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They 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. Therefore, they should not be construed as limitations on this application.
[0045] 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 technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of this application, "multiple" means two or more, unless otherwise explicitly specified.
[0046] Please refer to the following: Figures 1 to 10 The self-cleaning lawn mowing device provided in this application will now be described. The self-cleaning lawn mowing device proposed in this application includes a base 1, a mowing disc 2, and an air pump 3.
[0047] The base 1 is used to move horizontally above the ground while maintaining a gap between its lower side and the ground. This gap is greater than the normal grass growth height, so that the base 1 is positioned above the grass to be cut during horizontal movement.
[0048] A mounting base 4 is provided on the lower side of the base 1. This mounting base 4 can move vertically relative to the base 1, and there is an adjustable distance structure 5 between the mounting base 4 and the base 1. In actual use, by adjusting the adjustable distance structure 5, the mounting base 4 can be moved vertically relative to the base 1 to change the distance between the base 1 and the mounting base 4, and the distance between the mounting base 4 and the ground.
[0049] An annular groove 11 is also provided on the lower side of the base 1, which surrounds the mounting base 4. In this embodiment, the size of the annular groove 11 gradually decreases from bottom to top to achieve the technical purpose of forming a tapered cross section.
[0050] The mowing disc 2 is located on the lower side of the mounting base 4, and its surface faces the vertical direction, that is, its axis is parallel to the vertical direction. According to the structural characteristics of the mowing disc 2, its outer circumference is provided with multiple serrations or blades, which are suitable for acting on the grass when the mowing disc 2 rotates, so as to achieve the technical purpose of grass removal.
[0051] In this embodiment, the mowing disc 2 is rotatably connected to the lower side of the mounting base 4 in the vertical direction, and the mowing disc 2 is also connected to a drive component 21 for driving its rotation.
[0052] By adopting the aforementioned structural features, in actual use, the distance between the mowing disc 2 and the ground can be changed by adjusting the distance structure 5, and the mowing disc 2 can be rotated by driving component 21. At the same time, the grass on the horizontal plane where the mowing disc 2 is located can be cut by manually pulling or pushing the base 1.
[0053] The air pump 3 is fixedly mounted on the base 1 and is connected to the annular groove 11 through the air inlet pipe 31. When the air pump 3 is started, the gas under the base 1 enters the air inlet pipe 31 through the annular groove 11 and is discharged through the air pump 3. Based on this, after the grass is cut by the mowing disc 2, it will be affected by the centrifugal force provided by the mowing disc 2 and thrown to the bottom of the annular groove 11. At this time, the grass will enter the annular groove 11 with the airflow.
[0054] It should be further noted that in this embodiment, there are two air pumps 3, located on opposite sides of the annular groove 11. In actual design, the outlet of the air pump 3 is usually set to a horizontal direction, opposite to the direction of movement of the base 1, to assist in the process of manually pushing or pulling the base 1, thus saving manpower. Furthermore, in this embodiment, the air inlet pipe 31 is filled with a filter screen to restrict small grass pieces from entering the air inlet pipe 31, thereby preventing grass pieces from entering the air pump 3 through the air inlet pipe 31.
[0055] In this embodiment, the relative positions of the mounting base 4 and the base 1 can be adjusted by the adjustable distance structure 5, so that the distance between the mowing disc 2 and the ground can be adaptively changed, thereby adapting to grass mowing operations at different heights. Based on this, the driving component 21 moves the mowing disc 2, allowing the grass on the horizontal plane where the mowing disc 2 is located to be cut. The cut grass will be thrown out to the outside of the mounting base 4 and will pass directly below the annular groove 11. By activating the air pump 3, the gas under the base 1 can enter the air inlet pipe 31 through the annular groove 11. At this time, if the grass passes directly below the annular groove 11, the grass will enter the annular groove 11 with the airflow, thus cleaning up the cut grass.
[0056] The self-cleaning lawn mowing device provided in this embodiment, compared with the prior art, can complete lawn mowing through the cooperation of the drive component 21 and the mowing disc 2, and can achieve the removal of grass at different heights through the cooperation of the adjustable distance structure 5 and the mounting base 4. On this basis, it can also form a directional airflow by drawing gas through the air pump 3, and this airflow can carry the grass that is thrown out after mowing into the annular groove 11 to achieve the technical purpose of grass recycling, while eliminating the need for subsequent manual cleaning and improving the efficiency of garden maintenance.
[0057] In some embodiments, such as Figure 6 , Figure 8 and Figure 9 As shown, a guide groove 12 is provided on the lower side of the base 1, and the aforementioned mounting seat 4 is slidably inserted into the guide groove 12 to realize the sliding connection between the base 1 and the mounting seat 4 and to limit the sliding direction of the mounting seat 4.
[0058] Based on the foregoing, the mounting base 4 also includes a guide rod 41, which is fixedly connected to the mounting base 4, and the axial direction of the guide rod 41 is parallel to the vertical direction.
[0059] In this embodiment, the guide rod 41 passes through the bottom of the guide groove 12 and extends to the upper side of the base 1. Specifically, the base 1 has a through hole that communicates with the bottom of the guide groove 12. The guide rod 41 is slidably inserted into this through hole to further limit the sliding direction of the mounting base 4.
[0060] In some embodiments, such as Figure 2 and Figure 8 As shown, the adjustable distance structure 5 includes a fixing nut 51 and a transmission screw 52.
[0061] The fixing nut 51 is fixedly connected to the base 1, and its axis is parallel to the vertical direction.
[0062] The transmission screw 52 is mounted on the mounting base 4, with its axis parallel to the vertical direction, and the transmission screw 52 is rotatably connected to the upper end face of the mounting base 4 in the vertical direction.
[0063] After the device is assembled, the transmission screw 52 is threadedly connected to the fixing nut 51 so that when the transmission screw 52 is rotated under human drive, the mounting base 4 moves relative to the base 1, thereby achieving the technical purpose of adjusting the height of the mowing disc 2 relative to the ground.
[0064] In some embodiments, such as Figure 9 As shown, the base 1 has a reserved hole 13 that runs through the vertical direction, and the upper side of the base 1 has a recessed groove 131 that is coaxially connected with the reserved hole 13.
[0065] Based on the foregoing, the fixing nut 51 is fixedly embedded in the recessed groove 131; the transmission screw 52 is inserted into the reserved hole 13 and threadedly connected to the fixing nut 51 to achieve the recessed fixed installation of the fixing nut 51.
[0066] In some embodiments, such as Figure 4 , Figure 6 and Figure 8 As shown, the upper side of the mounting base 4 is provided with a receiving groove 42, and the driving component 21 is a rotating motor fixedly installed in the receiving groove 42.
[0067] In this embodiment, the power output shaft of the rotating motor is parallel to the vertical direction, and its power output end extends downward through the bottom of the receiving groove 42 and extends out to connect with the mowing disc 2, thereby achieving the technical purpose of driving the mowing disc 2 to rotate.
[0068] In some embodiments, such as Figure 4 , Figure 6 and Figure 8 As shown, a cover 421 is fixedly fitted into the opening of the receiving groove 42. This cover 421 abuts against the upper side of the rotating motor to prevent the rotating motor from disengaging from the receiving groove 42, thereby improving the structural stability of the device.
[0069] In some embodiments, such as Figure 7 and Figure 10 As shown, the upper side of the base 1 is provided with an annular hole 14 that communicates with the annular groove 11, and the base 1 also includes a sealing cylinder 6.
[0070] The sealing cylinder 6 is made of rubber material. After the device is assembled, the sealing cylinder 6 is fixedly inserted into the annular hole 14, and its insertion end face is provided with an annular cavity 61 that communicates with the annular groove 11 for the grass to be embedded, and the grass is subjected to the friction between itself and the inner wall of the annular cavity 61, making it difficult to move.
[0071] Based on the foregoing, the intake pipe 31 is fixedly connected to the sealing cylinder 6 and communicates with the annular cavity 61 to realize the communication relationship between the intake pipe 31 and the annular groove 11.
[0072] In some embodiments, such as Figure 10 As shown, the outer and inner circumferential surfaces of the sealing cylinder 6 both have protrusions 62 made of rubber material and annular structure; based on this, the upper side of the base 1 has two bent portions 15 located inside and outside the annular hole 14, respectively. Each bent portion 15 includes a vertical ring fixed to the base 1 and extending upward, and a horizontal ring fixed to the upper end face of the vertical ring and extending toward the central axis of the vertical ring.
[0073] By adopting the above technical solution, the two bent parts 15 are adapted to engage with the two protrusions 62 respectively, that is, the protrusions 62 are embedded between the vertical ring and the horizontal ring, and the upper and lower sides of the protrusions 62 respectively abut against the upper side of the horizontal ring and the base 1, so as to restrict the movement of the sealing cylinder 6 relative to the base 1 and improve the structural stability between the sealing cylinder 6 and the base 1.
[0074] In some embodiments, such as Figure 1 As shown, the base 1 has rollers 16 rotatably connected to it to facilitate horizontal movement of the base 1. Based on this, the base 1 also has a handle 17 fixedly connected to it and extending upward at an angle to provide driving force for human grip.
[0075] In some embodiments, such as Figure 5 As shown, the opening of the annular groove 11 has multiple baffles 111; the multiple baffles 111 are arranged at intervals around the mounting base 4, and each baffle 111 is fixedly connected to the base 1. In actual design, the annular groove 11 can also be processed into a closed groove type (in this case, a groove needs to be cut on the upper side of the base 1, specifically a groove is cut at the lower end of the annular hole 14), and then holes are made on the closed surface, with the part between two adjacent holes forming the baffles 111.
[0076] By adopting the above technical solution, two adjacent baffles 111 along the circumference of the annular groove 11 form a screen that allows flexible grass to pass through and restricts the passage of large hard particles, thus ensuring the stability of the device when recycling grass.
[0077] The above content is only a preferred embodiment of this application and is not intended to limit this application. Any modifications, equivalent substitutions and improvements made within the spirit and principles of this application should be included within the protection scope of this application.
Claims
1. A self-cleaning grass cutting device characterised in that, include: A base for horizontal movement above the ground; a mounting seat is provided on the lower side of the base, and an adjustable distance structure is provided between the mounting seat and the base, the adjustable distance structure being used to drive the mounting seat to move relative to the base in the vertical direction; and an annular groove surrounding the mounting seat is also provided on the lower side of the base. A mowing disc is disposed on the lower side of the mounting base, with its surface facing up and down; the mowing disc is rotatably connected to the mounting base in the up and down direction, and a driving component is drively connected to the mowing disc; and An air pump is fixedly mounted on the base and is connected to the annular groove through an air inlet pipe. When the air pump is started, the gas under the base enters the air inlet pipe through the annular groove and is discharged through the air pump. The grass cut by the mowing disc on the outer periphery will enter the annular groove with the airflow.
2. The self-cleaning lawn mower of claim 1, wherein, The lower side of the base is provided with a guide groove, and the mounting base is slidably inserted into the guide groove; furthermore, the mounting base also includes: A guide rod is fixedly connected to the mounting base; the axial direction of the guide rod is parallel to the vertical direction, and the guide rod passes through the bottom of the guide groove and extends to the upper side of the base.
3. A self-cleaning grass cutting device as claimed in claim 1 or 2, characterized in that The adjustment structure includes: A fixing nut is fixedly connected to the base, and its axis is parallel to the vertical direction; and A drive screw is rotatably connected to the mounting base in the up-down direction and is threadedly connected to the fixing nut so that when it rotates, the mounting base moves relative to the base.
4. The self-cleaning lawn mower of claim 3, wherein, The base has a reserved hole that runs through the vertical direction, and the upper side of the base has a recessed groove that is coaxially connected with the reserved hole. The fixing nut is fixedly embedded in the sinking groove; the transmission screw is inserted into the reserved hole and threadedly connected to the fixing nut.
5. The self-cleaning lawn mower of claim 1, wherein, The upper side of the mounting base is provided with a receiving groove, and the driving component is a rotating motor fixedly installed in the receiving groove; The power output shaft of the rotating motor is parallel to the vertical direction, and its power output end extends downward through the bottom of the receiving groove and out to connect with the mowing disc.
6. The self-cleaning lawn mower of claim 5, wherein, A cover is fixedly fitted into the opening of the receiving groove, and the cover abuts against the upper side of the rotating motor to prevent the rotating motor from disengaging from the receiving groove.
7. The self-cleaning lawn mower of claim 1, wherein The upper side of the base has an annular hole communicating with the annular groove, and the base also includes: A sealing cylinder is fixedly inserted into the annular hole, and its insertion end face has an annular cavity communicating with the annular groove; The air intake pipe is fixedly connected to the sealing cylinder and communicates with the annular cavity.
8. The self-cleaning lawn mower of claim 7, wherein, The outer and inner circumferential surfaces of the sealing cylinder both have protrusions; the upper side of the base has two bends located inside and outside the annular hole, respectively. The two bent portions are adapted to engage with the two protrusions respectively to restrict the movement of the sealing cylinder relative to the base.
9. The self-cleaning lawn mower of claim 1, wherein, The base has rollers that are rotatably connected to it, and handrails that are fixedly connected to it and extend upwards at an angle.
10. The self-cleaning lawn mowing device as described in claim 1, characterized in that, The opening of the annular groove has multiple baffles; the multiple baffles are arranged at intervals around the mounting base, and each baffle is fixedly connected to the base.