Cutter head structure of mower

Abstract

The utility model relates to the technical field of mowers, and discloses a cutter head structure of a mower, which comprises an outer frame, a lifting frame, a height adjusting mechanism, a driving motor and a cutting disc, the lifting frame is mounted on the inner side of the outer frame in a sliding manner, the height adjusting mechanism for driving the lifting frame to move up and down is mounted on the outer frame, and the driving motor is fixed in the lifting frame. An output shaft of the driving motor is fixed to the cutting disc, the cutting disc comprises a base disc, fan blades, fan-shaped grooves and fastening bolts, the multiple fan-shaped grooves are formed in the bottom of the base disc, one fan blade is detachably installed in each fan-shaped groove, and the fan blades are fixed to the base disc through the fastening bolts. According to the utility model, a plurality of fan-shaped blades are combined into one cutting blade, so that the damaged fan-shaped blade can be independently replaced when the cutting blade is damaged, and resources are saved; the height of the blade is convenient to adjust, and the grass cutting height is convenient to control.

Description

Technical Field

[0001] The utility model relates to the technical field of lawn mowers, in particular to a cutter disc structure of a lawn mower. Background Art

[0002] A lawn mower is also called a weed cutter, lawn mower, lawn trimmer, etc. A lawn mower is a mechanical tool used to trim lawns and vegetation. It consists of a cutter disc, an engine, a running wheel, a running mechanism, a blade, an armrest, and a control part. There are two types of lawn mowers: a handheld lawn mower and a trolley lawn mower. The trolley lawn mower is more convenient to operate and is more widely used.

[0003] The cutting blade of the trolley-type lawn mower has a fixed height, which is inconvenient to adjust, and the grass cutting height cannot be adjusted according to different needs. In addition, the blade of the existing lawn mower is an integral blade. When a part of the blade is damaged, the entire blade must be replaced, which is a waste of resources. Therefore, in view of the above situation, it is urgent to develop a lawn mower that combines multiple fan-shaped blades into a cutting blade. When damaged, the damaged fan-shaped blade can be replaced separately, saving resources, and the height of the blade is easy to adjust. The blade disc structure of the lawn mower is easy to control the cutting height of the grass, so as to overcome the shortcomings in current practical applications and meet current needs. Utility Model Content

[0004] The utility model aims to provide a blade disc structure of a lawn mower, in which a plurality of fan-shaped blades are combined into a cutting blade. When damaged, the damaged fan-shaped blade can be removed separately, thus saving resources. The height of the blade can be easily adjusted, so as to facilitate the control of the cutting height of the grass.

[0005] In order to achieve the above purpose, the utility model adopts the following technical solutions:

[0006] A blade disc structure of a lawn mower comprises an outer frame, a lifting frame, a height adjustment mechanism, a driving motor and a cutting disc, wherein the lifting frame is slidably installed on the inner side of the outer frame, and the height adjustment mechanism for driving the lifting frame to move up and down is installed on the outer frame, a driving motor is fixed inside the lifting frame, and the output shaft of the driving motor is fixed to the cutting disc, and the cutting disc comprises: a base disc, a fan blade, a fan-shaped groove and a fastening bolt, a plurality of fan-shaped grooves are arranged at the bottom of the base disc, a fan blade is detachably installed in each of the fan-shaped grooves, and the fan blade is fixed to the base disc by a fastening bolt.

[0007] Preferably, a connecting block is fixed on both the left and right sides of the outer frame.

[0008] Preferably, the fan blade is made of manganese steel.

[0009] Preferably: the height adjustment mechanism includes: a threaded sleeve, a threaded rod, a limit rod and a toggle rod, the threaded sleeve is rotatably connected to the outer frame, a threaded rod passing through the threaded sleeve is installed inside the threaded sleeve, the bottom of the threaded rod is fixed to the lifting frame, the lower end of the threaded rod is fixed with a limit rod passing through the outer frame, and a plurality of toggle rods are fixed to the outside of the threaded sleeve.

[0010] Preferably, the limiting rod is slidably connected to the outer frame, and the outer frame is provided with a limiting sliding groove for the limiting rod to move up and down.

[0011] The beneficial effects of the utility model are as follows: when the blade disc structure of the lawn mower is used, the connecting block is fixed to the frame of the lawn mower by bolts, and then the outer frame is fixed to the lawn mower, and the base disc and the fan blade are driven to rotate by the driving motor, and the grass is cut by the fan blade. When one of the multiple fan blades is damaged, the damaged fan blade can be removed and replaced. In addition, the threaded sleeve is driven to rotate by the toggle rod, and the threaded rod is driven to move up and down by the rotation of the threaded sleeve, and the lifting frame is driven to move up and down by the threaded rod, and the driving motor and the cutting disc are driven to move up and down by the lifting frame, and then the distance between the cutting disc and the ground is adjusted, thereby adjusting the cutting height of the grass. In summary, the utility model combines multiple fan-shaped blades into a cutting blade, and when damaged, the damaged fan-shaped blade can be replaced separately, saving resources; the height of the blade is easy to adjust, and it is convenient to control the cutting height of the grass. BRIEF DESCRIPTION OF THE DRAWINGS

[0012] Figure 1 It is a three-dimensional structural schematic diagram of the utility model.

[0013] Figure 2 It is a partial structure diagram of the utility model Figure 1 .

[0014] Figure 3 It is a partial structure diagram of the utility model Figure 2 .

[0015] Figure 4 For this utility model Figure 3 The split status of Figure 1 .

[0016] Figure 5 For this utility model Figure 3 The split status of Figure 2 .

[0017] Legend:

[0018] 1. Outer frame; 101. Limiting slide; 2. Connecting block; 3. Lifting frame; 4. Height adjustment mechanism; 401. Threaded sleeve; 402. Threaded rod; 403. Limiting rod; 404. Toggle rod; 5. Driving motor; 6. Cutting disc; 601. Base disc; 602. Fan blade; 603. Fan-shaped groove; 604. Fastening bolt. DETAILED DESCRIPTION

[0019] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments of the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0020] Specific examples are given below.

[0021] See also Figure 1~Figure 5 In the embodiment of the utility model, a blade disc structure of a lawn mower includes an outer frame 1, a connecting block 2, a lifting frame 3, a height adjustment mechanism 4, a driving motor 5 and a cutting disc 6. A connecting block 2 is fixed on both sides of the outer frame 1. The connecting block 2 is fixed to the frame of the lawn mower by bolts, and then the outer frame 1 is fixed to the lawn mower. A lifting frame 3 is slidably installed on the inner side of the outer frame 1. A height adjustment mechanism 4 for driving the lifting frame 3 to move up and down is installed on the outer frame 1. A driving motor 5 is fixed in the lifting frame 3. The output shaft of the driving motor 5 is fixed to the cutting disc 6. The cutting disc 6 includes: a base plate 601, a fan blade 602, a fan-shaped groove 603 and a fastening bolt 604. A plurality of fan blades are arranged at the bottom of the base plate 601. shaped groove 603, each fan-shaped groove 603 has a fan blade 602 that can be detachably installed, the fan blade 602 is made of manganese steel, so that it has good strength and wear resistance, the fan blade 602 is fixed to the base plate 601 by fastening bolts 604, when in use, the base plate 601 and the fan blade 602 are driven to rotate by the driving motor 5, and the grass is cut by the fan blade 602, when multiple fan blades 602 are damaged, the damaged fan blade 602 can be removed and replaced, in addition, the lifting frame 3 is driven to move up and down by the height adjustment mechanism 4, and the driving motor 5 and the cutting disc 6 are driven to move up and down by the lifting frame 3, thereby adjusting the distance between the cutting disc 6 and the ground, thereby adjusting the cutting height of the grass.

[0022] The height adjustment mechanism 4 includes: a threaded sleeve 401, a threaded rod 402, a limiting rod 403 and a toggle rod 404. The threaded sleeve 401 is rotatably connected to the outer frame 1. A threaded rod 402 passing through the threaded sleeve 401 is installed in the threaded sleeve 401. The bottom of the threaded rod 402 is fixed to the lifting frame 3. The lower end of the threaded rod 402 is fixed with a limiting rod 403 passing through the outer frame 1. The limiting rod 403 is slidably connected to the outer frame 1. The outer frame 1 is provided with a limiting slide groove 101 for the limiting rod 403 to move up and down. The movement of the threaded sleeve 401 is limited by the limiting rod 403 so that it cannot rotate but can only move in a straight line. A plurality of toggle rods 404 are fixed on the outside of the threaded sleeve 401. When in use, the threaded sleeve 401 is driven to rotate by the toggle rod 404, the threaded sleeve 401 is driven to move up and down by the rotation of the threaded sleeve 401, and the lifting frame 3 is driven to move up and down by the threaded rod 402.

[0023] Working principle: When the blade disc structure of the lawn mower is in use, the connecting block 2 is fixed to the frame of the lawn mower by bolts, and then the outer frame 1 is fixed to the lawn mower, and the base plate 601 and the fan blade 602 are driven to rotate by the driving motor 5, and the grass is cut by the fan blade 602. When one of the multiple fan blades 602 is damaged, the damaged fan blade 602 can be removed and replaced. In addition, the threaded sleeve 401 is driven to rotate by the toggle rod 404, and the threaded rod 402 is driven to move up and down by the rotation of the threaded sleeve 401, and the lifting frame 3 is driven to move up and down by the threaded rod 402, and the driving motor 5 and the cutting disc 6 are driven to move up and down by the lifting frame 3, and then the distance between the cutting disc 6 and the ground is adjusted, thereby adjusting the cutting height of the grass.

[0024] The above are only preferred specific implementation methods of the utility model, but the protection scope of the utility model is not limited to this. Any technician familiar with the technical field within the technical scope disclosed by the utility model, who makes equivalent replacements or changes based on the technical scheme and utility model concept of the utility model, should be covered by the protection scope of the utility model.

Claims

1. A blade structure of a lawn mower, characterized in that: The invention comprises an outer frame (1), a lifting frame (3), a height adjustment mechanism (4), a driving motor (5) and a cutting disc (6); the lifting frame (3) is slidably mounted on the inner side of the outer frame (1); the height adjustment mechanism (4) for driving the lifting frame (3) to move up and down is mounted on the outer frame (1); the driving motor (5) is fixed inside the lifting frame (3); the output shaft of the driving motor (5) is fixed to the cutting disc (6); the cutting disc (6) comprises: a base disc (601), a fan blade (602), a fan-shaped groove (603) and a fastening bolt (604); a plurality of fan-shaped grooves (603) are arranged at the bottom of the base disc (601); a fan blade (602) is detachably mounted in each of the fan-shaped grooves (603); the fan blade (602) is fixed to the base disc (601) by a fastening bolt (604).

2. The blade structure of the lawn mower according to claim 1, characterized in that: A connecting block (2) is fixed to both the left and right sides of the outer frame (1).

3. The blade structure of the lawn mower according to claim 1, characterized in that: The fan blade (602) is made of manganese steel.

4. The blade structure of the lawn mower according to claim 1, characterized in that: The height adjustment mechanism (4) comprises: a threaded sleeve (401), a threaded rod (402), a limiting rod (403) and a toggle rod (404); the threaded sleeve (401) is rotatably connected to the outer frame (1); a threaded rod (402) is installed inside the threaded sleeve (401) and penetrates the threaded sleeve; the bottom of the threaded rod (402) is fixed to the lifting frame (3); the lower end of the threaded rod (402) is fixed with a limiting rod (403) penetrating the outer frame (1); and a plurality of toggle rods (404) are fixed to the outer side of the threaded sleeve (401).

5. The blade structure of the lawn mower according to claim 4, characterized in that: The limiting rod (403) is slidably connected to the outer frame (1), and a limiting sliding groove (101) for the limiting rod (403) to move up and down is provided on the outer frame (1).

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