Cutter head of grass trimmer

Abstract

The utility model relates to a grass trimmer cutterhead which comprises a cutterhead body, a fixing part and blades, the blades are detachably installed on the cutterhead body and rotationally connected with the cutterhead body, the cutterhead body is provided with a groove for containing the fixing part, the cutterhead body is hinged to one end of the fixing part, one end, close to the blades, of the cutterhead body is provided with a limiting component, and the limiting component is connected with the fixing part in a clamped mode. The limiting part is used for fixing the fixing part, the other end of the fixing part is used for fixing the blade, the blade comprises a tool bit and a rotating part, the tool bit is located outside the cutter head, a first boss and a second boss are symmetrically arranged on the rotating part, the first boss is rotationally connected with the cutter head, and the second boss is rotationally connected with the fixing part. The blade of the structure is high in durability and convenient to disassemble and assemble, and the application cost is greatly reduced.

Description

Technical Field

[0001] The utility model relates to the technical field of grass trimmers, in particular to a grass trimmer cutter disc. Background Art

[0002] The existing lawn mower blade is usually connected to the blade by a through hole. During the mowing process, the through hole of the blade is easily broken due to the long-term friction between the blade and the blade. Therefore, the blade needs to be replaced frequently, resulting in an increase in operating costs. Utility Model Content

[0003] Based on this, a lawn mower cutter disc is provided, the blades of which have high durability, are easy to assemble and disassemble, and reduce the operating cost.

[0004] A blade for a lawn mower comprises a blade, a fixing part and a blade. The blade is detachably mounted on the blade and is rotatably connected to the blade. A groove for accommodating the fixing part is provided on the blade, and is hinged to one end of the fixing part. A limiting component is provided at one end of the blade close to the blade, and the limiting component is clamped with the fixing part. The limiting component is used to fix the fixing part, and the other end of the fixing part is used to fix the blade.

[0005] The blade comprises a cutter head and a rotating part, wherein the cutter head is located outside the cutter disc, and a first boss and a second boss are symmetrically arranged on the rotating part, wherein the first boss is rotatably connected to the cutter disc, and the second boss is rotatably connected to the fixed part.

[0006] The above-mentioned mower blade is composed of a blade, a fixed part and a blade. The No. 1 boss of the rotating part of the blade is inserted into the positioning hole of the blade, and then the fixed part is rotated to snap the rotating part of the blade onto the blade. The No. 2 boss of the rotating part is inserted into the positioning hole of the fixed part. When snapping, the limiting component fixes the fixed part. By symmetrically arranging the No. 1 boss and the No. 2 boss on the rotating part of the blade, the No. 1 boss and the No. 2 boss are rotatably connected to the blade and the fixed part respectively, which disperses the friction between the blade and the blade and the fixed part, thereby enhancing the service life of the blade. The fixed part is hinged to the blade, which makes it very convenient to disassemble and install the blade.

[0007] In one of the embodiments, a first metal ring is provided at the connection between the blade of the lawn mower blade and the No. 1 boss, and the first metal ring is sleeved on the No. 1 boss.

[0008] In one of the embodiments, a second metal ring is provided at the connection between the fixing portion of the grass trimmer blade and the No. 2 boss, and the second metal ring is sleeved on the No. 2 boss.

[0009] In one of the embodiments, an arc groove for limiting the rotating part is provided at one end of the rotating part of the blade of the blade disc of the lawn mower.

[0010] In one of the embodiments, the limiting component of the blade disc of the lawn mower is an elastic buckle, and the fixing portion is provided with a slot fixedly matched with the elastic buckle.

[0011] In one of the embodiments, the first boss and the second boss of the grass trimmer blade are cylindrical respectively.

[0012] In one of the embodiments, the fixing portion of the grass trimmer blade disc is a rectangular pressure plate.

[0013] In one of the embodiments, a fixing hole is provided at the center of the blade of the lawn mower.

[0014] The beneficial effects of this application are:

[0015] The present application provides a blade of a lawn mower, which consists of a blade, a fixing part and a blade. The No. 1 boss of the rotating part of the blade is inserted into the positioning hole of the blade, and then the fixing part is rotated to buckle the rotating part of the blade on the blade, and the No. 2 boss of the rotating part is inserted into the positioning hole of the fixing part. While buckling, the limiting component fixes the fixing part.

[0016] By symmetrically arranging a No. 1 boss and a No. 2 boss on the rotating part of the blade, the No. 1 boss and the No. 2 boss are rotatably connected to the cutter disc and the fixed part respectively, the friction between the blade and the cutter disc and the fixed part is dispersed, thereby enhancing the service life of the blade and improving the wear resistance of the blade.

[0017] One end of the fixing part is hinged to the cutter disc, so that the removal and installation of the blade is very convenient.

[0018] The first metal ring and the second metal ring are both made of stainless steel, which greatly improves the wear resistance between the rotating part, the cutter disc and the fixed part. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 A schematic diagram of a lawn mower blade disc from one perspective according to an embodiment of the present application;

[0020] Figure 2 A schematic diagram of a lawn mower blade disc from another perspective according to an embodiment of the present application;

[0021] Figure 3 A schematic diagram of a blade of a lawn mower cutter disc according to an embodiment of the present application;

[0022] Figure 4 A schematic diagram of a blade of a lawn mower according to an embodiment of the present application;

[0023] Figure 5 A schematic diagram of a fixing portion of a grass trimmer blade according to an embodiment of the present application;

[0024] in:

[0025] 1. Cutter disc; 2. Fixing part; 3. Blade; 11. Groove; 12. Limiting part; 121. Elastic buckle;

[0026] 13. first metal collar; 14. arc groove; 15. fixing hole; 21. second metal collar; 22. slot;

[0027] 31. Cutter head; 32. Rotating portion; 321. Boss No. 1; 322. Boss No. 2. DETAILED DESCRIPTION

[0028] In order to make the above-mentioned objects, features and advantages of the present invention more obvious and easy to understand, the specific implementation methods of the present invention are described in detail below with reference to the accompanying drawings.

[0029] like Figure 1 As shown, an embodiment of the present application provides a grass mower blade, comprising a blade 1, a fixing portion 2 and a blade 3. The blade 3 is detachably mounted on the blade 1 and rotatably connected to the blade 1. A groove 11 for accommodating the fixing portion 2 is provided on the blade 1 and is hinged to one end of the fixing portion 2. A limiting component 12 is provided at one end of the blade 3 of the blade 1. The limiting component 12 is clamped with the fixing portion 2. The limiting component 12 is used to fix the fixing portion 2, and the other end of the fixing portion 2 is used to fix the blade 3.

[0030] like Figure 3 As shown, the blade 3 includes a cutter head 31 and a rotating part 32. The cutter head 31 is located outside the cutter disc 1. A first boss 321 and a second boss 322 are symmetrically arranged on the rotating part 32. The first boss 321 is rotatably connected to the cutter disc 1, and the second boss 322 is rotatably connected to the fixed part 2.

[0031] Specifically, the blade of the lawn mower is composed of a blade 1, a fixed part 2 and a blade 3, wherein the blade 3 is connected by a cutter head 31 and a rotating part 32, and the first boss 321 of the rotating part 32 is inserted into the positioning hole of the blade 1, and then the fixed part 2 rotates around the blade 1 to snap the rotating part 32 of the blade 3 onto the blade 1, and the second boss 322 of the rotating part 32 is inserted into the positioning hole of the fixed part 2, and while snapping, the limiting component 12 fixes the fixed part 2. By symmetrically arranging the first boss 321 and the second boss 322 on the rotating part 32 of the blade 3, the first boss 321 and the second boss 322 are rotatably connected to the blade 1 and the fixed part 2, respectively, and the friction between the blade 3 and the blade 1 and the fixed part 2 is dispersed, thereby enhancing the service life of the blade 3. Among them, the fixed part 2 is hinged to the blade 1, so that the removal and installation of the blade 3 are very convenient.

[0032] like Figure 2As shown, in one of the embodiments, a first metal ring 13 is provided at the connection between the blade 1 of the grass trimmer blade and the first boss 321 , and the first metal ring 13 is sleeved on the first boss 321 .

[0033] Specifically, the first metal ring 13 can be made of stainless steel. This configuration enhances the wear resistance of the No. 1 boss 321 and the cutter disc 1 , and greatly prolongs the service life of the cutter disc 1 .

[0034] like Figure 1 As shown, in one of the embodiments, a second metal ring 21 is provided at the connection between the fixing portion 2 of the grass trimmer blade and the second boss 322 , and the second metal ring 21 is sleeved on the second boss 322 .

[0035] Specifically, the second metal ring 21 can be made of stainless steel. This configuration enhances the wear resistance of the second boss 322 and the fixing portion 2 , and greatly prolongs the service life of the fixing portion 2 .

[0036] like Figure 4 As shown, in one of the embodiments, an arc groove 14 for limiting the rotating part 32 is provided at one end of the blade 1 of the lawn mower blade close to the rotating part 32 of the blade 3.

[0037] Specifically, the rotating part 32 drives the cutter head 31 to rotate within the range of the arc groove 14. This arrangement is convenient for limiting the position of the blade 3.

[0038] like Figure 4 and Figure 5 As shown, in one embodiment, the limiting component 12 of the blade of the grass trimmer is an elastic buckle 121, and the fixing portion 2 is provided with a slot 22 fixedly matched with the elastic buckle 121.

[0039] Specifically, when the fixing part 2 is buckled with the rotating part 32 of the blade 3, the elastic buckle 121 is buckled on the buckle slot 22 to fix the fixing part 2 on the blade disc 1. This arrangement facilitates fixing the fixing part 2.

[0040] like Figure 3 As shown, in one embodiment, the first boss 321 and the second boss 322 of the grass trimmer blade are respectively cylindrical.

[0041] This arrangement facilitates the rotation of the No. 1 boss 321 and the No. 2 boss 322 on the cutter disc 1 and the fixing portion 2 .

[0042] like Figure 5 As shown, in one embodiment, the fixing portion 2 of the grass trimmer blade is a rectangular pressure plate.

[0043] This arrangement has a simple structure, beautiful appearance, and is convenient for fixing the blade 3.

[0044] like Figure 2 As shown, in one of the embodiments, a fixing hole 15 is provided at the center position of the blade 1 of the lawn mower blade.

[0045] This arrangement facilitates fixing the cutter disc 1 on the grass trimmer.

[0046] The above-mentioned embodiments only express several implementation methods of the utility model, and the description is relatively specific and detailed, but it cannot be understood as limiting the scope of the utility model patent. It should be pointed out that for ordinary technicians in this field, several modifications and improvements can be made without departing from the concept of the utility model, which all belong to the protection scope of the utility model. Therefore, the protection scope of the utility model patent shall be based on the attached claims.

Claims

1. A lawn mower blade. It is characterized in that The invention comprises a cutter disc (1), a fixing part (2) and a blade (3); the blade (3) is detachably mounted on the cutter disc (1) and is rotatably connected to the cutter disc (1); a groove (11) for accommodating the fixing part (2) is provided on the cutter disc (1); the cutter disc (1) is hinged to one end of the fixing part (2); a limiting component (12) is provided at one end of the cutter disc (1) close to the blade (3); the limiting component (12) is clamped to the fixing part (2); the limiting component (12) is used to fix the fixing part (2); the other end of the fixing part (2) is used to fix the blade (3); The blade (3) comprises a cutter head (31) and a rotating part (32); the cutter head (31) is located outside the cutter disc (1); a first boss (321) and a second boss (322) are symmetrically arranged on the rotating part (32); the first boss (321) is rotatably connected to the cutter disc (1); and the second boss (322) is rotatably connected to the fixed part (2).

2. The mower blade according to claim 1, It is characterized in that A first metal ring (13) is provided at the connection between the cutter disc (1) and the first boss (321), and the first metal ring (13) is sleeved on the first boss (321).

3. The mower blade according to claim 1, It is characterized in that A second metal ring (21) is provided at the connection between the fixing portion (2) and the second boss (322), and the second metal ring (21) is sleeved on the second boss (322).

4. The mower blade according to claim 1, It is characterized in that An arc-shaped groove (14) for limiting the position of the rotating part (32) is provided at one end of the cutter disc (1) close to the rotating part (32) of the blade (3).

5. The mower blade according to claim 1, It is characterized in that The limiting component (12) is an elastic buckle (121), and the fixing portion (2) is provided with a clamping groove (22) fixedly matched with the elastic buckle (121).

6. The mower blade according to claim 1, It is characterized in that The first boss (321) and the second boss (322) are respectively cylindrical.

7. The mower blade according to claim 1, It is characterized in that The fixing portion (2) is a rectangular pressing plate.

8. The mower blade according to claim 1, It is characterized in that A fixing hole (15) is provided at the center of the cutter disc (1).

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