Mower blade guard

Abstract

The utility model relates to a cutter head protection plate for mower relates to the technical field of mower. Including protection plate body, protection plate body is made of basalt fiber, the strength of basalt fiber is high, compares with stainless steel, the weight of basalt fiber of equal strength is lighter, and the manufacturing cost is lower, and the protection plate body made of basalt fiber can be formed once, and the forming efficiency is high, and the corrosion resistance is better, and the service life is long.

Description

Technical Field

[0001] This utility model relates to the field of lawnmower technology, and in particular to a blade guard plate for lawnmowers. Background Technology

[0002] A lawnmower is a mechanical tool used for trimming lawns, vegetation, etc. It is also called a lawn mower, lawn trimmer, etc. It consists of blades, engine, wheels, walking mechanism, blades, handle, and control unit. Traditional lawnmower blades are mostly exposed. When the engine drives the blades to rotate at high speed, the high-speed rotating blades will hit hard objects such as stones and cause them to fly out, which poses a serious threat to the personal safety of the user. The cut grass clippings will also fly out. Modern lawnmowers usually have a protective cover above the blades to block flying stones and grass clippings.

[0003] In related technologies, reference can be made to Chinese Utility Model Patent No. CN222356940U, which discloses a cutting component protection device, including a protective plate disposed below the mowing disc. The protective plate is either stationary or rotating relative to the rotating mowing disc. Reference can also be made to Chinese Utility Model Patent No. CN213784253U, which discloses an intelligent lawnmower blade safety protection mechanism, including a first protective cover and a second protective plate. The first protective cover is connected to the lower end of the motor mounting cover, and the second protective plate is connected to the lower end of the first protective cover. The blade is disposed between the first protective cover and the second protective plate.

[0004] The first protective cover provided in the second patent mentioned above is made of plastic, and the second protective plate is made of iron. Traditional protective plates are mainly made of steel. Plastic materials are more prone to damage than steel and iron, while steel and iron are heavier and more prone to rust, thus having a shorter service life. As the cutter head rotates, gravel and grass clippings not only fly upwards but also undergo centrifugal motion along the tangential direction of the cutter head, thus flying to the side of the cutter head. Common protective plates are disc-shaped and placed above the cutter head, mainly to block the gravel and grass clippings flying upwards, but cannot block the gravel and grass clippings flying to the side. Utility Model Content

[0005] To address the aforementioned problems, this utility model provides a blade guard plate for lawnmowers.

[0006] The blade guard plate for lawnmowers provided in this application adopts the following technical solution:

[0007] A blade guard plate for a lawnmower includes a guard plate body made of basalt fiber.

[0008] By adopting the above technical solutions, basalt fiber has high strength. Compared with stainless steel, basalt fiber of the same strength is lighter and has a lower manufacturing cost. The protective plate body made of basalt fiber can be formed in one piece, with high forming efficiency, better corrosion resistance, and long service life.

[0009] Optionally, the protective plate body has clearance holes for the lawnmower drive shaft to pass through.

[0010] Optionally, the periphery of the protective plate body has a downwardly extending baffle.

[0011] By adopting the above technical solution, the baffle improves the blocking effect on flying gravel and grass clippings, thereby improving the protective effect of the protective plate itself.

[0012] Optionally, the protective plate body is hot-riveted with a plurality of first screws.

[0013] By adopting the above technical solution, multiple first screws are used to connect the protective plate body to the lawnmower body.

[0014] Optionally, the protective plate body has multiple upward / downward protruding reinforcing ribs.

[0015] By adopting the above technical solution, the reinforcing ribs increase the structural strength of the protective plate body.

[0016] Optionally, the protective plate body includes a flat plate portion located in the middle and two extension portions respectively located at the left and right ends of the flat plate portion, wherein the end of the extension portion near the flat plate portion extends downward at an angle from top to bottom.

[0017] By adopting the above technical solution, the flat plate can block upward flying gravel and grass clippings, and the extensions on both sides can not only block upward flying gravel and grass clippings, but the inclined design can also partially block gravel and grass clippings flying from the sides, thereby improving the protective effect.

[0018] Optionally, the rear end of the flat plate has a downwardly inclined connecting portion, and a plurality of second screws are hot-riveted onto the connecting portion.

[0019] By adopting the above technical solution, the connecting part is connected to the main body of the lawnmower, and the inclined design increases the protective space of the protective plate body, thereby improving the protective effect.

[0020] Optionally, the baffle is located on the periphery of the protective plate body on the side away from the connecting part.

[0021] Optionally, the thickness of the protective plate body is 1.5mm.

[0022] By adopting the above technical solution, due to the characteristics of basalt fiber, the thickness of the protective plate body is changed from the common 1mm to 1.5mm, which increases the strength, reduces the weight, improves the performance, and increases the service life.

[0023] In summary, this application includes at least one of the following beneficial technical effects:

[0024] 1. Basalt fiber has high strength. Compared with stainless steel, basalt fiber of the same strength is lighter and has a lower manufacturing cost. The protective plate body made of basalt fiber can be formed in one piece, with high forming efficiency, better corrosion resistance, and long service life.

[0025] 2. The flat section blocks upward-splashing gravel and grass clippings, while the extensions on both sides not only block upward-splashing gravel and grass clippings, but the inclined design also partially blocks side-splashing gravel and grass clippings, thus improving the protective effect. Combined with the basalt fiber design, this not only improves the performance of the protective panel itself but also increases its service life. Attached Figure Description

[0026] Figure 1 This is an isometric drawing of the overall structure of this application;

[0027] Figure 2 This is a front view of the overall structure of this application;

[0028] Figure 3 This is a side view of the overall structure of this application;

[0029] Figure 4 This is a top view of the overall structure of this application.

[0030] Reference numerals: 1. Protective plate body; 11. First screw; 12. Clearance hole; 13. Reinforcing rib; 2. Baffle; 21. Inclined part; 22. Vertical part; 3. Flat part; 4. Extension part; 5. Connecting part; 51. Second screw. Detailed Implementation

[0031] The following is in conjunction with the appendix Figure 1-4 This application will be described in further detail.

[0032] This application discloses a blade guard plate for a lawnmower.

[0033] Reference Figure 1 A blade guard plate for a lawnmower includes a guard plate body 1, which is made of basalt fiber and has a thickness of 1.5 mm.

[0034] Reference Figure 1 and Figure 2The protective plate body 1 is hot-riveted with multiple first screws 11, which are used to connect the upper surface of the protective plate body 1 and the lawnmower body. The protective plate body 1 has clearance holes 12 for the lawnmower power shaft to pass through, and the periphery of the protective plate body 1 has downwardly extending baffles 2.

[0035] Reference Figure 1 and Figure 3 The protective plate body 1 includes a flat plate 3 located in the middle and two extensions 4 respectively located at the left and right ends of the flat plate 3. The extensions 4 extend downward from the top near the end of the flat plate 3, and the clearance hole 12 is located on the flat plate 3. The rear end of the flat plate 3 has a downwardly inclined connecting part 5. Multiple second screws 51 are hot-riveted on the connecting part 5. The second screws 51 are used to connect the lawnmower body and the connecting part 5 to increase the stability of the connection of the protective plate body 1.

[0036] Reference Figure 1 , Figure 2 and Figure 3 The baffle 2 includes an inclined portion 21 and two vertical portions 22 integrally formed together. The inclined portion 21 is connected to the flat plate portion 3 and the two extension portions 4 on the side away from the connecting portion 5 and extends downward at an incline. The two vertical portions 22 are located on both sides of the inclined portion 21, and the two vertical portions 22 correspond one-to-one with the two extension portions 4. The vertical portions 22 are connected to the side of the extension portions 4 away from the flat plate portion 3 and extend downward vertically.

[0037] Reference Figure 1 , Figure 2 and Figure 3 The protective plate body 1 has multiple upward / downward protruding reinforcing ribs 13. The extension directions of the multiple upward protruding reinforcing ribs 13 are parallel to each other, and the multiple reinforcing ribs 13 are symmetrically arranged around the center line of the flat plate part 3.

[0038] Reference Figure 1 and Figure 4 The protective plate body 1 extends downward in a direction away from the connecting part 5 to increase the protective space of the protective plate body 1. The projection of the protective plate body 1 in the vertical direction has a structure similar to a tortoise shell.

[0039] Reference Figure 1 During installation, the protective plate body 1 is connected to the lawnmower body by the first screw 11 and the second screw 51. The power shaft of the cutter head is passed through the clearance hole 12 so that the lower end of the power shaft is located in the space formed by the flat plate part 3 and the extension part 4. The cutter head is then installed at the lower end of the power shaft.

[0040] Reference Figure 1After the lawnmower is started, the flat section 3 blocks the upward-splashing gravel and grass clippings. The extensions 4 on both sides not only block the upward-splashing gravel and grass clippings, but the inclined design also partially blocks the gravel and grass clippings splashing from the sides. The design of the connecting section 5 and the baffle 2 increases the protective space, thereby improving the protective effect of the protective plate body 1. Combined with the characteristics of basalt fiber, it not only improves the use effect of the protective plate body 1, but also increases its service life.

[0041] The above are all preferred embodiments of this application, and are not intended to limit the scope of protection of this application. Therefore, all equivalent changes made in accordance with the structure, shape and principle of this application should be covered within the scope of protection of this application.

Claims

1. A blade guard plate for a lawnmower, characterized in that: It includes a protective plate body (1) made of basalt fiber.

2. The blade guard plate for a lawnmower according to claim 1, characterized in that: The protective plate body (1) has a clearance hole (12) for the lawnmower drive shaft to pass through.

3. The blade guard plate for a lawnmower according to claim 1, characterized in that: The protective plate body (1) has a downwardly extending baffle (2) around its periphery.

4. The blade guard plate for a lawnmower according to claim 1, characterized in that: The protective plate body (1) is hot-riveted with a plurality of first screws (11).

5. The blade guard plate for a lawnmower according to claim 1, characterized in that: The protective plate body (1) has multiple upward / downward protruding reinforcing ribs (13).

6. The blade guard plate for a lawnmower according to claim 3, characterized in that: The protective plate body (1) includes a flat plate (3) located in the middle and two extensions (4) respectively located at the left and right ends of the flat plate (3). The extensions (4) extend downward from top to bottom at the end near the flat plate (3).

7. The blade guard plate for a lawnmower according to claim 6, characterized in that: The rear end of the flat plate (3) has a downwardly inclined connecting part (5), and a plurality of second screws (51) are hot-riveted on the connecting part (5).

8. The blade guard plate for a lawnmower according to claim 7, characterized in that: The baffle (2) is located on the periphery of the protective plate body (1) on the side away from the connecting part (5).

9. The blade guard plate for a lawnmower according to claim 1, characterized in that: The thickness of the protective plate body (1) is 1.5mm.

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