Fine steel multi-blade full-coverage grass trimmer
By designing a high-strength steel multi-blade full-coverage grass cutter, the low efficiency and safety issues of existing grass cutters when clearing grass with large roots and stems have been solved. The blades are protected and can be flexibly installed, improving both safety and efficiency.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- ZHEJIANG FEIHU NEW ENERGY TECHNOLOGY CO LTD
- Filing Date
- 2025-06-03
- Publication Date
- 2026-04-24
AI Technical Summary
Existing lawn mowers are not effective at clearing grass with large roots, cannot easily accommodate different numbers of blades, and lack protection for the blades during weeding, posing a risk of injury to personnel.
A high-strength steel multi-blade full-coverage grass cutter was designed, which protects the blades with a protective cover and guard plate, allows for adjustment of the number of blades, and improves safety through adjustable mounting components and protective devices.
It effectively removes grass with large roots, protects the blade, reduces safety hazards when moving and storing the equipment, and improves the flexibility and safety of its use.
Smart Images

Figure CN224154712U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of weeding equipment technology, specifically a stainless steel multi-blade full-coverage weed cutter. Background Technology
[0002] A lawn mower is a handheld tool used to cut weeds in lawns, gardens, pastures, and other places. According to the power source, it can be divided into oil-powered and electric types; according to the power head structure, it can be divided into front-powered and rear-powered types.
[0003] The lawnmower disclosed in Chinese Utility Model Patent Application Publication CN218634779U, while allowing users to quickly attach the mowing rope to the mowing head with simple operation and without directly touching the head, thus avoiding hand soiling, only offers the convenience of quick rope replacement and reduced hand soiling. However, it falls short in effectively removing grass with large roots and stems that have not been cleared for a long time. Furthermore, it lacks the ability to easily install different numbers of blades based on the grass's growth pattern. It also fails to protect or prevent the rotating blades from breaking and flying debris, potentially causing injury, especially if stones are present in the grass. Additionally, it lacks protection when the equipment is not in use, and it is not designed to prevent blade cuts during movement, handling, and storage. Therefore, this utility model is proposed to address these issues. Utility Model Content
[0004] To address the shortcomings of existing technologies, this utility model provides a high-strength steel multi-blade full-coverage grass cutter, which solves the problems of removing grass with large roots and stems, facilitating the installation of different numbers of blades for grass cutting, and protecting the rotating blades during weeding to reduce the risk of blade cuts to personnel during movement, handling, and storage.
[0005] To achieve the above objectives, this utility model is implemented through the following technical solution: a high-strength steel multi-blade full-coverage grass cutter, including a protective cover, a motor cover inserted into the upper surface of the protective cover, a mounting base sleeved on the surface of the motor cover, a mounting assembly rotatably connected inside the mounting base, a protective plate inserted into the lower surface of the protective cover, a grass cutting motor inserted into the inside of the motor cover, a blade shaft mounted on one end of the grass cutting motor via grass cutting bolts, grass cutting blades mounted on the surface of the blade shaft via blade bolts, and a fixing component inserted into one end of the mounting assembly.
[0006] Preferably, one end of the fixing component is provided with a mowing rod, the surface of the mowing rod is provided with an anti-squeezing component, the surface of the mowing rod is provided with a mowing handle, one end of the mowing rod is threaded through a start handle, the surface of the start handle is provided with a start button, the two ends of the protective plate are fitted with protective covers by protective bolts, and the lower surface of the protective cover is fitted with a protective plate.
[0007] Optionally, the lower surface of the grass trimmer has a moving groove, one side of the moving groove has a moving hole, and the upper surface of the grass trimmer has a power supply groove.
[0008] Optionally, the mounting assembly includes a mounting shaft, a mounting cylinder, a threaded post, and a mounting rod. The mounting shaft has a mounting cylinder on its surface, and the threaded post passes through the internal threads of the mounting cylinder. One end of the threaded post is inserted into the mounting rod.
[0009] Optionally, the fixing component includes a fixing seat, a spring seat, a fixing spring, and a fixing button. The spring seat is inserted into the interior of the fixing seat, the fixing spring is inserted into one side of the spring seat, and the fixing button is inserted into one end of the fixing spring.
[0010] Optionally, the anti-press assembly includes an anti-press bearing, an anti-press shell, an anti-press magnet, and a supporting magnet. The anti-press shell is rotatably connected inside the anti-press bearing. An anti-press magnet is provided on one side of the anti-press shell, and a supporting magnet is magnetically attracted to one end of the anti-press magnet.
[0011] Optionally, the anti-press shell has a magnet fixing groove on the side near the anti-press magnet, and the magnet fixing groove is compatible with the anti-press magnet.
[0012] Optionally, the grass-cutting motor has a grass-cutting threaded hole at one end near the blade shaft, and the surface of the blade shaft has a number of blade threaded holes.
[0013] Optionally, one end of the mounting base is provided with a mounting shaft, and a mounting component is inserted into the mounting shaft.
[0014] In summary, the technical effects and advantages of this utility model are as follows:
[0015] 1. This utility model has a reasonable structure. By rotating the connecting piece, the mounting component can be loosened on the mounting base for rotation and angle adjustment. The angle of the mounting component on the mounting base can be quickly adjusted. Rotating and removing the trimming bolts disconnects the blade shaft from the trimming motor. The trimming blades are then installed onto the blade shaft using the trimming bolts. After the trimming blades are installed, rotating the trimming bolts fixes the blade shaft to the trimming motor. The trimming motor drives the blade shaft to rotate, causing the trimming blades to remove grass. This allows workers to install different numbers of trimming blades according to the actual grass growth in the lawn, facilitating lawn cleaning.
[0016] 2. In this utility model, the installation rod is quickly installed and removed inside the installation cylinder, facilitating equipment damage and disassembly / repair. Pressing the fixing button inserts the fixing component into the moving slot within the trimmer rod, allowing the installation rod to move within the trimmer rod. Adjusting the trimmer rod and installation rod to a suitable height according to the worker's height, and then ejecting the fixing button from the corresponding moving hole in the moving slot, secures the installation rod. This allows workers to trim grass at a comfortable height. The anti-press cover rotates on the anti-press bearing, and the anti-press magnet attracts the supporting magnet, fixing the anti-press cover to the moving hole on the trimmer rod and protecting the fixing button. This reduces the risk of workers accidentally pressing the fixing button during work, preventing the installation rod and trimmer rod from moving and causing adverse consequences.
[0017] 3. In this utility model, by having one hand hold the mowing handle and the other hand hold the start handle, the worker can better control the equipment by holding both the mowing handle and the start handle. This reduces the impact of equipment instability on work caused by shaking. When the equipment is not in use, the protective cover is fixed to the protective plate by the protective bolts. The protective cover and the protective plate protect the equipment inside the protective plate, thereby reducing the risk of scratches to personnel and injuries when the equipment is not in use or is being moved. Attached Figure Description
[0018] Figure 1 This is a schematic diagram of the structure of this utility model;
[0019] Figure 2 This is a schematic diagram of the protective cover structure of this utility model;
[0020] Figure 3 This is a schematic diagram of the mounting shaft structure of this utility model;
[0021] Figure 4 This is a schematic diagram of the blade structure of the grass-cutting knife of this utility model;
[0022] Figure 5 This is a schematic diagram of the fixing component structure of this utility model;
[0023] Figure 6 This is a schematic diagram of the fixed spring structure of this utility model;
[0024] Figure 7 This is a plan view of the grass trimming rod of this utility model;
[0025] Figure 8 This is a schematic diagram of the anti-press shell structure of this utility model;
[0026] Figure 9 This is a schematic diagram of the grass-cutting handle structure of this utility model;
[0027] Figure 10 This is a schematic diagram of the protective plate structure of this utility model.
[0028] In the diagram: 1. Protective cover; 2. Motor cover; 3. Mounting base; 4. Mounting assembly; 401. Mounting shaft; 402. Mounting cylinder; 403. Threaded post; 404. Mounting rod; 5. Protective plate; 501. Protective bolt; 6. Mewing motor; 7. Blade shaft; 701. Mewing bolt; 8. Mewing blade; 801. Blade bolt; 9. Fixing assembly; 901. Fixing base; 902. Spring seat; 903. Fixing spring; 904. Fixing button; 10. Mewing rod; 101. Moving slot; 102. Moving hole; 103. Power supply slot; 11. Anti-press assembly; 111. Anti-press shaft seat; 112. Anti-press shell; 113. Anti-press magnet; 114. Support magnet; 12. Mewing handle; 13. Start handle; 14. Start button; 15. Protective cover; 16. Protective plate. Detailed Implementation
[0029] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.
[0030] Example: Reference Figures 1-10 The stainless steel multi-blade full-coverage lawn mower shown includes a protective cover 1, a motor cover 2 inserted into the upper surface of the protective cover 1, a mounting base 3 fitted onto the surface of the motor cover 2, a mounting assembly 4 rotatably connected inside the mounting base 3, a protective plate 5 inserted into the lower surface of the protective cover 1, a lawn mowing motor 6 inserted into the inside of the motor cover 2, a blade shaft 7 mounted on one end of the lawn mowing motor 6 via a lawn mowing bolt 701, a lawn mowing blade 8 mounted on the surface of the blade shaft 7 via a blade bolt 801, a fixing assembly 9 inserted into one end of the mounting assembly 4, a lawn mowing rod 10 provided at one end of the fixing assembly 9, an anti-pressing assembly 11 provided on the surface of the lawn mowing rod 10, a lawn mowing handle 12 provided on the surface of the lawn mowing rod 10, a start handle 13 threaded through one end of the lawn mowing rod 10, a start button 14 provided on the surface of the start handle 13, and protective covers 15 mounted on both ends of the protective plate 5 via protective bolts 501, a protective plate 16 fitted onto the lower surface of the protective cover 15.
[0031] As a preferred embodiment of this example, Figures 2 to 4As shown, a motor cover 2 is inserted into the upper surface of the protective cover 1, and a mounting base 3 is fitted onto the surface of the motor cover 2. A mounting assembly 4 is rotatably connected inside the mounting base 3. The mounting base 3 is fixed to the mounting assembly 4 by a connector. One end of the mounting base 3 is provided with a mounting shaft seat, and the mounting assembly 4 is inserted into the mounting shaft seat. A protective plate 5 is inserted into the lower surface of the protective cover 1. A grass-trimming motor 6 is inserted into the inside of the motor cover 2. A blade shaft 7 is mounted on one end of the grass-trimming motor 6 by a grass-trimming bolt 701. The grass-trimming motor 6 is close to the blade shaft. One end of the blade shaft 7 has a grass-cutting threaded hole. The surface of the blade shaft 7 has several blade-cutting threaded holes, with different positions of the blade-cutting threaded holes in the middle and lower parts of the surface. There are two grass-cutting blades 8. The blades 8 are mounted on the surface of the blade shaft 7 using blade bolts 801. During use, the mounting assembly 4 is loosened on the mounting base 3 by rotating the connecting piece to adjust the angle. After adjustment, the mounting assembly 4 is fixed to the mounting base 3 by rotating the connecting piece, allowing for quick adjustment of the mounting assembly. 4. The angle of the mounting base 3 allows users to adjust to a suitable angle according to their height. By rotating and removing the trimming bolt 701, the blade shaft 7 is disconnected from the trimming motor 6. The trimming blade 8 is then installed onto the blade shaft 7 using the trimming bolt 801. Workers install the trimming blades 8 in the middle and lower parts of the blade shaft 7 according to the actual situation. After the trimming blades 8 are installed, the trimming bolt 701 is rotated to fix the blade shaft 7 onto the trimming motor 6. The trimming motor 6 drives the blade shaft 7 to rotate, causing the trimming blades 8 on the blade shaft 7 to rotate and remove grass. The protective cover 1 and protective plate 5 protect and block the rotating trimming blades 8, reducing the risk of injury caused by broken and flying debris from stones in the grass during grass removal. This allows workers to install different numbers of trimming blades 8 according to the actual grass growth in the grass, facilitating grass removal and allowing for quick replacement of damaged trimming blades, minimizing impact on work speed.
[0032] like Figure 3 , Figures 5 to 8As shown, in this embodiment, a fixing component 9 is inserted into one end of the mounting component 4. The mounting component 4 includes a mounting shaft 401, a mounting cylinder 402, a threaded post 403, and a mounting rod 404. The mounting cylinder 402 is provided on the surface of the mounting shaft 401. The threaded post 403 passes through the internal thread of the mounting cylinder 402. The mounting rod 404 is inserted into one end of the threaded post 403. The fixing component 9 includes a fixing seat 901, a spring seat 902, a fixing spring 903, and a fixing button 904. The spring seat 902 is inserted into the inside of the fixing seat 901. The fixing spring 903 is inserted into one side of the spring seat 902. The fixing button 904 is inserted into one end of the fixing spring 903. One end of the 9 is provided with a mowing rod 10. A moving groove 101 is formed on the lower surface of the mowing rod 10, and a moving hole 102 is formed on one side of the moving groove 101. A power groove 103 is formed on the upper surface of the mowing rod 10, and a battery is installed in the power groove 103. An anti-pressing component 11 is provided on the surface of the mowing rod 10. The anti-pressing component 11 includes an anti-pressing shaft seat 111, an anti-pressing shell 112, an anti-pressing magnet 113, and a supporting magnet 114. The anti-pressing shell 112 is rotatably connected inside the anti-pressing shaft seat 111. An anti-pressing magnet 113 is provided on one side of the anti-pressing shell 112. The supporting magnet 114 is magnetically attracted to one end of the anti-pressing magnet 113. A magnetic... The iron fixing groove, the magnetic fixing groove, and the anti-press magnet 113 are mutually compatible. During use, the threaded column 403 is rotated and installed within the mounting cylinder 402, allowing the mounting rod 404 to be quickly installed and removed within the mounting cylinder 402. This facilitates equipment damage and disassembly for maintenance. By pressing the fixing button 904, the fixing component 9 is inserted into the moving groove 101 within the trimmer rod 10, allowing the mounting rod 404 to move within the trimmer rod 10. The trimmer rod 10 and mounting rod 404 are adjusted to a suitable height according to the user's height. After adjustment, the fixing button 904 pops out from the corresponding moving hole 102 in the moving groove 101, thus aligning the mounting rod 404. The device is fixed in place so that the height of the equipment can be adjusted according to the height of the operator, making it convenient for workers to weed at a comfortable height and reducing the impact on their work caused by the equipment being too high or too low. By rotating the anti-press housing 112 on the anti-press bearing 111, and magnetically attracting the supporting magnet 114 through the anti-press magnet 113, the anti-press housing 112 can be fixed to the moving hole 102 on the weeding rod 10. The fixing button 904 popped out of the moving hole 102 is protected, reducing the risk of workers accidentally pressing the fixing button 904 during work, which could cause the mounting rod 404 to move and lead to adverse consequences due to the movement of the mounting rod 404 and the weeding rod 10 during work.
[0033] like Figure 9 and Figure 10As shown, in this embodiment, the surface of the mowing rod 10 is provided with a mowing handle 12, and one end of the mowing rod 10 is threaded through a start handle 13. The surface of the start handle 13 is provided with a start button 14. Protective covers 15 are installed on both ends of the protective plate 5 by protective bolts 501. A protective plate 16 is fitted onto the lower surface of the protective cover 15. During use, the operator holds the mowing handle 12 with one hand and the start handle 13 with the other hand, and starts the equipment by pressing the start button 14. The operator's hands hold the mowing handle 12 and the start handle 13, which allows for better control of the equipment and reduces the impact of equipment instability on work. When the equipment is not in use, the protective cover 15 is fixed to the protective plate 5 by the protective bolts 501. The protective cover 15 and the protective plate 16 protect the equipment inside the protective plate 5, thereby reducing the risk of personnel being scratched or injured when the equipment is not in use or is being moved.
[0034] The working principle of this practical application is as follows:
[0035] During use, the protective cover 15 is removed from one side of the protective plate 5 by rotating the protective bolt 501. The worker rotates the threaded post 403 inside the mounting cylinder 402 to quickly install the mounting rod 404 inside the mounting cylinder 402. The worker presses the fixing button 904 to insert the fixing component 9 into the moving slot 101 inside the trimmer rod 10, causing the mounting rod 404 to move within the trimmer rod 10. The trimmer rod 10 and the mounting rod 404 are adjusted to a suitable height according to the worker's height. After adjustment, the fixing button 904 pops out from the corresponding moving hole 102 in the moving slot 101, fixing the mounting rod 404. By rotating the anti-press cover 112 on the anti-press bearing seat 111, the anti-press magnet 113 magnetically attracts the supporting magnet 114, fixing the anti-press cover 112 out of the moving hole 102 on the grass trimmer 10, protecting the fixing button 904 that pops out of the moving hole 102, reducing the accidental pressing of the fixing button 904 during operation. The mounting assembly 4 is loosened on the mounting base 3 and rotated to adjust the angle. The trimming bolt 701 is removed by rotation to disconnect the blade shaft 7 from the trimming motor 6. The trimming blade 8 is then installed onto the blade shaft 7 using the blade bolt 801. Workers install the trimming blade 8 at the middle and lower parts of the blade shaft 7 according to the actual situation. After the trimming blade 8 is installed, the blade shaft 7 is fixed to the trimming motor 6 by rotating the trimming bolt 701. The rotating trimming blade 8 is protected by the protective cover 1 and the protective plate 5. To prevent obstruction, when in use, the operator holds the mowing handle 12 with one hand and the start handle 13 with the other. By pressing the start button 14, the mowing motor 6 is started, which drives the blade shaft 7 to rotate, causing the mowing blades 8 on the blade shaft 7 to rotate and remove the grass. The operator's hands holding the mowing handle 12 and the start handle 13 allow for better control of the equipment. It is also convenient for the operator to install different numbers of mowing blades 8 according to the actual grass growth in the lawn, making it easier for the operator to clean the lawn.
[0036] All electrical components mentioned in this article are connected to an external main controller and 220V AC mains power, and the main controller can be a conventional known device such as a computer that can control it.
[0037] Finally, it should be noted that the above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Although the present utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.
Claims
1. A stainless steel multi-blade full-coverage grass cutter, including a protective cover (1), characterized in that: A motor cover (2) is inserted into the upper surface of the protective cover (1). A mounting base (3) is fitted onto the surface of the motor cover (2). An installation component (4) is rotatably connected inside the mounting base (3). A protective plate (5) is inserted into the lower surface of the protective cover (1). A grass-cutting motor (6) is inserted into the inside of the motor cover (2). A blade shaft (7) is installed at one end of the grass-cutting motor (6) via a grass-cutting bolt (701). A grass-cutting blade (8) is installed on the surface of the blade shaft (7) via a blade bolt (801). A fixing component (9) is inserted into one end of the installation component (4). A grass-cutting rod (10) is provided at one end of the fixing component (9). An anti-pressing component (11) is provided on the surface of the grass-cutting rod (10).
2. The stainless steel multi-blade full-coverage lawn mower according to claim 1, characterized in that: The surface of the mowing rod (10) is provided with a mowing handle (12), and one end of the mowing rod (10) is threaded through a start handle (13). The surface of the start handle (13) is provided with a start button (14). The two ends of the protective plate (5) are fitted with protective covers (15) by protective bolts (501), and the lower surface of the protective cover (15) is fitted with a protective plate (16).
3. The stainless steel multi-blade full-coverage lawn mower according to claim 1, characterized in that: The lower surface of the grass trimmer (10) is provided with a moving groove (101), and a moving hole (102) is provided on one side of the moving groove (101). The upper surface of the grass trimmer (10) is provided with a power supply groove (103).
4. The stainless steel multi-blade full-coverage lawn mower according to claim 1, characterized in that: The mounting assembly (4) includes a mounting shaft (401), a mounting cylinder (402), a threaded post (403), and a mounting rod (404). The mounting shaft (401) has a mounting cylinder (402) on its surface. The threaded post (403) passes through the internal thread of the mounting cylinder (402). One end of the threaded post (403) is inserted into the mounting rod (404).
5. The stainless steel multi-blade full-coverage lawn mower according to claim 1, characterized in that: The fixing component (9) includes a fixing seat (901), a spring seat (902), a fixing spring (903), and a fixing button (904). The spring seat (902) is inserted into the interior of the fixing seat (901), the fixing spring (903) is inserted into one side of the spring seat (902), and the fixing button (904) is inserted into one end of the fixing spring (903).
6. The stainless steel multi-blade full-coverage lawn mower according to claim 1, characterized in that: The anti-press assembly (11) includes an anti-press bearing seat (111), an anti-press shell (112), an anti-press magnet (113), and a support magnet (114). The anti-press bearing seat (111) is rotatably connected to the anti-press shell (112). An anti-press magnet (113) is provided on one side of the anti-press shell (112), and a support magnet (114) is magnetically attracted to one end of the anti-press magnet (113).
7. The stainless steel multi-blade full-coverage lawn mower according to claim 6, characterized in that: The anti-press shell (112) has a magnet fixing groove on the side near the anti-press magnet (113), and the magnet fixing groove is compatible with the anti-press magnet (113).
8. The stainless steel multi-blade full-coverage lawn mower according to claim 1, characterized in that: The grass-cutting motor (6) has a grass-cutting threaded hole at one end near the blade shaft (7), and the surface of the blade shaft (7) has a number of blade threaded holes.
9. The stainless steel multi-blade full-coverage lawn mower according to claim 1, characterized in that: One end of the mounting base (3) is provided with a mounting shaft seat, and a mounting component (4) is inserted into the mounting shaft seat.
Citation Information
Patent Citations
Grass trimmer
CN218634779U