Blade of grass mower

Abstract

The utility model relates to a grass mower blade, and belongs to the technical field of garden tools, the grass mower blade comprises a fixed blade plate and a swing blade plate, the swing blade plate is rotatably installed on the fixed blade plate, and the fixed blade plate is provided with a cutter head plate; and a cutting blade which is matched with the fixed blade plate to cut the lawn is detachably arranged on the cutting cutter head plate. The grass mower blade has the effect of reducing the maintenance cost of the grass mower blade.

Description

Technical Field

[0001] The present application relates to the technical field of gardening tools, and in particular to a lawn mower blade. Background Art

[0002] A lawn mower is a common tool used in gardening. In gardens, some flowers or other plants are usually planted in the lawn, and the lawn needs to be mowed frequently as it grows. The lawn far from the flowers or other plants can be mowed with a large lawn mower, but the large lawn mower is likely to interrupt the flowers when mowing the lawn close to the flowers, so the lawn next to the flowers is usually mowed with a small lawn mower.

[0003] The small lawn mower comprises a lawn mower body and a blade installed on the lawn mower body. The blade comprises a fixed blade and a swing blade. The fixed blade is fixedly installed on the lawn mower body, and the swing blade is installed on the lawn mower body and can swing back and forth, thereby cooperating with the fixed blade to achieve lawn cutting.

[0004] However, there may be hard objects such as small stones in the lawn. When the blade is cutting the lawn, small stones and other hard objects may easily cause gaps on the blade, affecting the mowing effect. Therefore, the entire blade needs to be replaced during maintenance, which makes the maintenance cost higher. Utility Model Content

[0005] In order to reduce the maintenance cost of a lawn mower blade, the present application provides a lawn mower blade.

[0006] The present application provides a lawn mower blade, which adopts the following technical solution:

[0007] A lawn mower blade comprises a fixed blade plate and a swinging blade plate, wherein the swinging blade plate is rotatably mounted on the fixed blade plate, a cutting head plate is arranged on the fixed blade plate, and a cutting blade which cooperates with the fixed blade plate to cut the lawn is detachably disposed on the cutting head plate.

[0008] In order to facilitate the removal of the cutting blade, a blade groove is provided on the side wall of the cutting head plate, the cutting blade is inserted into the blade groove with interference fit, and the side of the cutting blade facing away from the blade groove protrudes out of the blade groove.

[0009] In order to enable the cutting blade to be smoothly inserted into the blade slot during installation, a guiding slope is provided on a slot wall on one side of the blade slot to facilitate the insertion of the blade into the blade slot.

[0010] In order to enable the cutting blade to be installed in the blade slot with interference fit, a pressing arc surface for pressing the cutting blade into the blade slot is provided on the slot wall of the blade slot.

[0011] In order to make it easier to grind the cutting blade when it is rusted or the cutting effect is deteriorated, a grinding strip for grinding the cutting edge of the cutting blade is provided on the side of the swing blade plate away from the fixed blade plate.

[0012] In order to grind the two opposite sides of the cutting blade at the same time, two grinding strips are arranged at intervals, and the cutting blade can pass between the two grinding strips to achieve grinding.

[0013] In order to fix the grinding strip on the fixed blade plate, a mounting shell for mounting the grinding strip is also provided on one side of the swing blade plate where the grinding strip is arranged.

[0014] In order to facilitate the disassembly and replacement of the grinding strip, the side of the grinding strip facing away from the swing blade plate protrudes from the mounting shell.

[0015] In order to increase the cutting area of ​​the lawn mower blade to improve work efficiency, the cutting head plates are arranged in plurality at intervals, the swinging blade plate includes a swinging plate and a cutting blade arranged on one side of the swinging plate, and the cutting blades are arranged in plurality at intervals, and each cutting blade is located between two cutting head plates.

[0016] In summary, the present application includes at least one of the following beneficial technical effects:

[0017] When mowing the lawn, the cutting blade is in direct contact with the lawn to be mowed, so the cutting blade will also come into direct contact with hard objects such as small stones. If the cutting blade breaks, the corresponding cutting blade can be directly removed and replaced without replacing the entire lawn mower blade, thereby reducing maintenance costs.

[0018] The cutting blade is inserted into the blade slot with interference fit, so when removing and replacing the cutting blade, you only need to pull out or insert the cutting blade with force, thereby improving the convenience of replacing the cutting blade;

[0019] If the cutting blade becomes rusty or dull, simply remove the cutting blade and grind it directly on the grinding strip. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 Schematic diagram of the overall lawn mower blade in the embodiment of the present application.

[0021] Figure 2 Schematic diagram of an exploded view of a lawn mower blade in an embodiment of the present application.

[0022] Figure 3 It is a cross-sectional view of the cutting head plate in the embodiment of the present application.

[0023] Explanation of the reference numerals: 1. fixed blade plate; 11. cutting head plate; 111. blade groove; 112. guiding bevel; 8. pressing arc surface; 12. cutting blade; 2. swinging blade plate; 21. swinging plate; 22. mowing blade; 23. mounting shell; 24. grinding strip. DETAILED DESCRIPTION

[0024] The following is combined with Figure 1-3 This application is described in further detail.

[0025] The present application embodiment discloses a lawn mower blade. Figure 1 The lawn mower blade includes a fixed blade plate 1 and a swing blade plate 2. A cutting head plate 11 is integrally formed on one side of the fixed blade plate 1, and a cutting blade 12 is detachably mounted on the cutting head plate 11. The swing blade plate 2 is rotatably mounted on the fixed blade plate 1 to cooperate with the cutting blade 12 to cut the lawn. When the cutting blade 12 is broken or damaged, only the corresponding cutting blade 12 needs to be replaced, thereby reducing the maintenance cost.

[0026] Reference Figure 2 , a plurality of cutting head plates 11 are provided, and the plurality of cutting head plates 11 are arranged at intervals on the fixed blade plate 1. The cutting blade 12 is provided on the side wall of the cutting head plate 11, and the cutting blade 12 is located between two adjacent cutting head plates 11. Among them, the two cutting head plates 11 located on both sides are only provided with the cutting blade 12 on the side close to each other, and the cutting blade 12 is installed on the opposite sides of any cutting head plate 11 between the two cutting head plates 11 on both sides. The installation structure of the cutting blade 12 on each cutting head plate 11 is consistent, and the installation structure of one cutting blade 12 is described below as an example.

[0027] Reference Figure 2 and Figure 3 A blade groove 111 is provided on the side wall of the cutting head plate 11, and the cutting blade 12 is inserted into the blade groove 111 with interference fit, and the side of the cutting blade 12 away from the blade groove 111 protrudes out of the blade groove 111 to trim the lawn. A guiding slope 112 is provided on the groove wall of the blade groove 111 away from the fixed blade plate 1, and the guiding slope 112 gradually inclines toward the groove wall on the opposite side along the direction from the blade groove 111 to the groove bottom of the blade groove 111, that is, the diameter of the notch of the blade groove 111 is larger than the groove diameter of the groove bottom of the blade groove 111, thereby facilitating the cutting blade 12 to be quickly and smoothly inserted into the blade groove 111.

[0028] In addition, the groove wall of the blade groove 111 on the side where the guiding bevel 112 is provided is also provided with a pressing arc surface 8, and the pressing arc surface 8 is located on the side of the guiding bevel 112 close to the groove bottom of the blade groove 111. The arc top of the pressing arc surface 8 faces the groove wall of the blade groove 111 away from the guiding bevel 112, and the distance between the arc top of the pressing arc surface 8 and the groove wall away from the guiding bevel 112 is slightly smaller than the thickness of the cutting blade 12, so that the cutting blade 12 is inserted into the blade groove 111 with interference.

[0029] Reference Figure 2 and Figure 3 The swing blade plate 2 includes a swing plate 21 and a grass cutting blade 22. The grass cutting blade 22 is located on one side of the swing plate 21, and the grass cutting blade 22 is integrally formed with the swing plate 21. Since a plurality of cutting head plates 11 are provided, a plurality of grass cutting blades 22 are also provided. The plurality of grass cutting blades 22 and the plurality of cutting head plates 11 are arranged alternately, that is, each grass cutting blade 22 will be located between two adjacent cutting head plates 11, and then the grass cutting blade 22 cooperates with the cutting blade 12 to cut the lawn.

[0030] A rotating shaft is fixedly installed on one side of the fixed blade plate 1 close to the swing plate 21. The swing plate 21 is sleeved on the rotating shaft and swings with the rotating shaft as the rotation axis. The grass cutting blade 22 will also swing synchronously with the swing plate 21, and cross with the cutting blade 12 to mow the lawn during the swinging process.

[0031] Reference Figure 2 and Figure 3 A mounting shell 23 is welded on the side of the swing plate 21 facing away from the fixed blade plate 1, and the side of the mounting shell 23 facing away from the swing plate 21 is open. Grinding strips 24 are installed on the inner walls on both sides of the mounting shell 23 in an interference fit manner, and the two grinding strips 24 are arranged at intervals, so that the cutting blade 12 can be inserted between the two grinding strips 24 to grind the two surfaces at the same time. In order to facilitate the insertion of the cutting blade 12 between the two grinding strips 24, notches for the cutting blade 12 to be inserted are provided on the inner walls on the other two sides of the mounting shell 23. In addition, the two grinding strips 24 on one side facing away from the swing plate 21 protrude from the mounting shell 23, which, on the one hand, facilitates the removal of the grinding strips 24 by clamping the grinding strips 24; on the other hand, the cutting blade 12 can be placed directly on the grinding strips 24 for grinding without being inserted between the two grinding strips 24.

[0032] The implementation principle of a lawn mower blade in the embodiment of the present application is as follows: since the cutting blade 12 is in direct contact with the lawn to be cut during the mowing process, the cutting blade 12 will also be chipped or curled due to hard objects during the mowing process. When the cutting blade 12 is chipped or curled, the staff can directly pull the cutting blade 12 out of the blade slot 111, and then replace a new cutting blade 12 and insert it into the blade slot 111. Compared with replacing the entire mowing blade 22, only replacing the cutting blade 12 at the corresponding position can reduce maintenance costs.

[0033] In addition, when the cutting blade 12 is rusted or not sharp, the cutting blade 12 can be inserted between two grinding strips 24 and then pulled back and forth for grinding.

[0034] The above are all preferred embodiments of the present application, and the protection scope of the present application is not limited thereto. Therefore, any equivalent changes made according to the structure, shape, and principle of the present application should be included in the protection scope of the present application.

Claims

1. A lawn mower blade, characterized in that: The utility model comprises a fixed blade plate (1) and a swinging blade plate (2), wherein the swinging blade plate (2) is rotatably mounted on the fixed blade plate (1), and a cutting head plate (11) is provided on the fixed blade plate (1), and a cutting blade (12) is detachably provided on the cutting head plate (11) for cooperating with the fixed blade plate (1) to cut the lawn; a blade groove (111) is provided on the side wall of the cutting head plate (11), and the cutting blade (12) is inserted into the blade groove (111) with interference fit, and a side of the cutting blade (12) facing away from the blade groove (111) protrudes from the blade groove (111).

2. A lawn mower blade according to claim 1, characterized in that: A guiding inclined surface (112) is provided on a groove wall on one side of the blade groove (111) to facilitate the insertion of the blade into the blade groove (111).

3. A lawn mower blade according to claim 2, characterized in that: A pressing arc surface (8) for pressing the cutting blade (12) into the blade groove (111) is provided on the groove wall of the blade groove (111).

4. A lawn mower blade according to claim 1, characterized in that: A grinding strip (24) for grinding the cutting edge of the cutting blade (12) is provided on a side of the swing blade plate (2) facing away from the fixed blade plate (1).

5. A lawn mower blade according to claim 4, characterized in that: Two grinding strips (24) are arranged at intervals, and the cutting blade (12) can pass between the two grinding strips (24) to perform grinding.

6. A lawn mower blade according to claim 5, characterized in that: A mounting shell (23) for mounting the grinding strip (24) is also provided on one side of the swing blade plate (2) where the grinding strip (24) is disposed.

7. A lawn mower blade according to claim 6, characterized in that: The side of the grinding strip (24) facing away from the swing blade plate (2) protrudes from the mounting shell (23).

8. The lawn mower blade according to claim 1, characterized in that: A plurality of the cutting head plates (11) are arranged at intervals, the swing blade plate (2) comprises a swing plate (21) and a grass cutting blade (22) arranged on one side of the swing plate (21), a plurality of the grass cutting blades (22) are arranged at intervals, and each of the grass cutting blades (22) is located between two of the cutting head plates (11).

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