Lawn mower capable of preventing grass winding

Abstract

The utility model relates to the field of mowing machines, and discloses a grass winding prevention mowing machine which comprises a mowing machine frame, a machine box and a mowing blade, the machine box is fixedly installed at the top of the mowing machine frame, and the mowing blade is arranged at the bottom of the mowing machine frame. The machine box is internally provided with a telescopic device used for adjusting the mowing height of the mowing blade; the mowing machine with the anti-winding device is compact and reasonable in structural design, the problem that a common mowing machine is not provided with the anti-winding device is solved, and therefore mowing efficiency is greatly improved.

Description

Technical Field

[0001] The utility model relates to the field of lawn mowers, in particular to a lawn mower capable of preventing grass from winding. Background Art

[0002] A lawn mower, also known as a weeder, lawn mower, lawn trimmer, etc., is a mechanical tool used to trim lawns and vegetation. It is widely used in garden decoration trimming, lawn greening trimming, urban streets, green scenic spots, pastoral trimming, field weeding, etc. Especially in parks, football fields and other grass fields, as well as private villa gardens and other places, lawn mowers have become an indispensable tool. In addition, with the rapid rise of the lawn industry, lawn mowers are also playing an increasingly important role in agricultural production. It saves labor costs, improves work efficiency, and enables people to maintain lawns and green spaces more easily.

[0003] However, general lawn mowers do not have anti-entanglement devices, so that during the use of the lawn mower, it is easy for grass to be entangled on the blade or the transmission shaft, which not only reduces the working efficiency of the lawn mower, but also increases the maintenance cost. For this reason, we propose a lawn mower with anti-grass entanglement. Utility Model Content

[0004] 1. Technical issues to be solved

[0005] In view of the deficiencies in the prior art, the utility model provides a lawn mower with anti-grass entanglement function, which solves the above-mentioned problems.

[0006] (II) Technical solution

[0007] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a grass entanglement prevention lawn mower, comprising a lawn mower frame, a chassis and a lawn mower blade, wherein the top of the lawn mower frame is fixedly mounted with the chassis, and the bottom of the lawn mower frame is provided with a lawn mower blade, and further comprising:

[0008] A telescopic device for adjusting the mowing height of the mowing blade is arranged inside the chassis;

[0009] The top of the mowing blade is provided with an anti-entanglement device for preventing the mowing blade from being entangled by grass.

[0010] Preferably, four mowing blades are provided, and one end of the four mowing blades is fixedly mounted on the rotating block, and the four mowing blades are arranged in a cross-shaped ring on the side surface of the rotating block.

[0011] Preferably, the telescopic device includes a rotating rod, a first gear, a second gear, a rack, an electric telescopic machine, a placement plate, a connecting rod and a limit cylinder. Two limit cylinders are fixedly installed on the top of the mower frame, and a connecting rod is movably connected to the inside of the two limit cylinders respectively. The inner wall of the chassis is movably connected with a rotating rod, and the outer surface of the rotating rod is fixedly connected to two second gears on one side corresponding to the two connecting rods, and the outer surface of the rotating rod is fixedly connected to the first gear between the two second gears, and the bottom end of the first gear is meshed with a rack, and one end of the rack is fixedly installed on the telescopic end of the electric telescopic machine.

[0012] Preferably, the lower halves of the two connecting rods are cylindrical, and the upper halves of the two connecting rods are rack-shaped, and the cylindrical ends of the two connecting rods pass through the mower frame and are fixedly connected to a placement plate 2, and the rack ends of the two connecting rods are respectively meshed and connected to one side of the two second gears.

[0013] Preferably, a motor is fixedly mounted on the top of the second placement plate, and the movable end of the motor passes through the second placement plate and is fixedly connected to the top of the rotating block.

[0014] Preferably, the anti-entanglement device includes an anti-entanglement plate and a protective tube, the anti-entanglement plate is fixedly installed on the bottom of the second placement plate, and the protective tube is fixedly installed at the center point of the bottom of the second placement plate.

[0015] Preferably, four anti-entanglement plates are provided, and the top ends of the four anti-entanglement plates are respectively fixedly mounted on the four edges of the bottom of the second placement plate, and the four anti-entanglement plates are all mounted on the second placement plate at an inclination of thirty degrees, and the movable end of the motor is located inside the protective tube.

[0016] (III) Beneficial effects

[0017] Compared with the prior art, the utility model provides a lawn mower that prevents grass entanglement, which has the following beneficial effects:

[0018] 1. The anti-entanglement lawn mower allows the user to adjust the height of the mowing blade according to actual needs through the design of the telescopic device. This feature enables the mower to adapt to lawns of different heights, whether it is mowing low lawns or areas with tall grass, it can achieve ideal mowing results. The telescopic device uses a combination of electric telescopic motors, racks and gears to achieve fast and accurate mowing height adjustment, improving operational efficiency and flexibility.

[0019] 2. The anti-entanglement device on the top of the mowing blade of this anti-entanglement mower effectively solves the problem of grass entanglement that is easy to occur in traditional mowers during mowing. The anti-entanglement plate installed at an angle and the protective tube at the center point form all-round protection for the mowing blade. The anti-entanglement plate can prevent long grass or weeds from entangled on the blade, while the protective tube protects the active end of the motor and avoids damage caused by grass clippings or debris entering. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 It is a schematic diagram of the structure of the utility model;

[0021] Figure 2 This is a schematic diagram of the interior of the chassis of the utility model;

[0022] Figure 3 This is a schematic diagram of the structure of the anti-entanglement device of the utility model;

[0023] Figure 4 This is a schematic diagram of the structure of the anti-entanglement plate of the utility model.

[0024] In the figure: 1. lawn mower frame; 2. chassis; 3. rotating rod; 4. first gear; 5. second gear; 6. rack; 7. electric telescopic machine; 8. placement plate 1; 9. connecting rod; 10. limiting cylinder; 11. placement plate 2; 12. motor; 13. rotating block; 14. lawn mower blade; 15. anti-entanglement plate; 16. protective cylinder. DETAILED DESCRIPTION

[0025] 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 in 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.

[0026] See also Figure 1-4 A grass entanglement prevention lawn mower includes a lawn mower frame 1, a chassis 2 and a lawn mower blade 14, wherein the chassis 2 is fixedly mounted on the top of the lawn mower frame 1, and the lawn mower blade 14 is arranged at the bottom of the lawn mower frame 1, and further includes:

[0027] The inside of the chassis 2 is provided with a telescopic device for adjusting the mowing height of the mowing blade 14;

[0028] The top of the mowing blade 14 is provided with an anti-entanglement device for preventing the mowing blade 14 from being entangled by grass.

[0029] Furthermore, four mowing blades 14 are provided, and one end of the four mowing blades 14 is fixedly mounted on the rotating block 13 , and the four mowing blades 14 are arranged in a cross-shaped ring on the side surface of the rotating block 13 .

[0030] Furthermore, the telescopic device includes a rotating rod 3, a first gear 4, a second gear 5, a rack 6, an electric telescopic machine 7, a placement plate 8, a connecting rod 9 and a limiting cylinder 10. Two limiting cylinders 10 are fixedly installed on the top of the mower frame 1, and the two limiting cylinders 10 are respectively movably connected to a connecting rod 9 inside. The inner wall of the chassis 2 is movably connected with the rotating rod 3, and the outer surface of the rotating rod 3 is fixedly connected to two second gears 5 on one side corresponding to the two connecting rods 9, and the outer surface of the rotating rod 3 is fixedly connected to the first gear 4 between the two second gears 5. The bottom end of the first gear 4 is meshed with the rack 6, and one end of the rack 6 is fixedly installed on the telescopic end of the electric telescopic machine 7.

[0031] Furthermore, the lower halves of the two connecting rods 9 are cylindrical, and the upper halves of the two connecting rods 9 are rack-shaped, and the cylindrical ends of the two connecting rods 9 pass through the mower frame 1 and are fixedly connected to a placement plate 2 11, and the rack ends of the two connecting rods 9 are respectively meshed and connected to one side of the two second gears 5.

[0032] Furthermore, a motor 12 is fixedly mounted on the top of the second placement plate 11 , and a movable end of the motor 12 passes through the second placement plate 11 and is fixedly connected to the top of the rotating block 13 .

[0033] Furthermore, the anti-entanglement device includes an anti-entanglement plate 15 and a protective tube 16. The anti-entanglement plate 15 is fixedly installed on the bottom of the placement plate 11, and the protective tube 16 is fixedly installed at the center point of the bottom of the placement plate 11.

[0034] Furthermore, four anti-entanglement plates 15 are provided, and the top ends of the four anti-entanglement plates 15 are respectively fixedly mounted on the four edges of the bottom of the placement plate 2 11 , and the four anti-entanglement plates 15 are all installed on the placement plate 2 11 at an inclination of thirty degrees, and the movable end of the motor 12 is located inside the protective tube 16 .

[0035] Working principle: when it is necessary to adjust the height of mowing, first start the electric telescopic machine 7 to extend and retract, so that the telescopic end of the electric telescopic machine 7 drives the rack 6 to move forward, thereby the rack 6 drives the first gear 4 to rotate through the meshing connection between the rack 6 and the first gear 4, and the rotation of the first gear 4 drives the two second gears 5 to rotate through the rotating rod 3, so that the two second gears 5 drive the two connecting rods 9 to move up and down in the two limit cylinders 10 through the meshing action, thereby driving the placement plate 2 11 fixedly connected to the bottom thereof to move up and down, so that the placement plate 2 11 passes The mowing height is adjusted accordingly by driving the mowing blade 14 through the motor 12 and the rotating block 13, and then the motor 12 is started, so that the motor 12 drives the mowing blade 14 to rotate through the rotating block 13 to cut the grass. When the mowing blade 14 is working, the cut grass will first contact the inclined anti-entanglement plate 15. Due to the inclined design of the anti-entanglement plate 15, the cut grass will be guided aside instead of directly contacting the mowing blade 14 or the active end of the motor 12. At the same time, the protective tube 16 provides a protective barrier for the active end of the motor 12 to prevent it from being entangled or damaged by the cut grass or debris.

[0036] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A grass entanglement prevention lawn mower, comprising a lawn mower frame (1), a chassis (2) and a lawn mower blade (14), wherein the chassis (2) is fixedly mounted on the top of the lawn mower frame (1), and the lawn mower blade (14) is arranged on the bottom of the lawn mower frame (1), characterized in that: Also includes: A telescopic device for adjusting the mowing height of the mowing blade (14) is provided inside the chassis (2); The top of the mowing blade (14) is provided with an anti-entanglement device for preventing the mowing blade (14) from being entangled by grass.

2. The anti-weed entanglement lawn mower according to claim 1, characterized in that: Four mowing blades (14) are provided, and one end of the four mowing blades (14) is fixedly mounted on the rotating block (13), and the four mowing blades (14) are arranged in a cross-shaped ring on the side surface of the rotating block (13).

3. The anti-weed entanglement lawn mower according to claim 1, characterized in that: The telescopic device comprises a rotating rod (3), a first gear (4), a second gear (5), a rack (6), an electric telescopic machine (7), a placement plate (8), a connecting rod (9) and a limiting cylinder (10); two limiting cylinders (10) are fixedly installed on the top of the mower frame (1); the insides of the two limiting cylinders (10) are respectively movably connected to a connecting rod (9); the inner wall of the chassis (2) is movably connected to the rotating rod (3); the outer surface of the rotating rod (3) is fixedly connected to one side corresponding to the two connecting rods (9); the outer surface of the rotating rod (3) is fixedly connected to the first gear (4) between the two second gears (5); the bottom end of the first gear (4) is meshingly connected to the rack (6); one end of the rack (6) is fixedly installed on the telescopic end of the electric telescopic machine (7).

4. The anti-weed entanglement lawn mower according to claim 3, characterized in that: The lower halves of the two connecting rods (9) are cylindrical, and the upper halves of the two connecting rods (9) are rack-shaped, and the cylindrical ends of the two connecting rods (9) penetrate the mower frame (1) and are fixedly connected to a second placement plate (11), and the rack ends of the two connecting rods (9) are respectively meshed and connected to one side of the two second gears (5).

5. The anti-weed entanglement lawn mower according to claim 4, characterized in that: A motor (12) is fixedly mounted on the top of the second placement plate (11), and a movable end of the motor (12) passes through the second placement plate (11) and is fixedly connected to the top of the rotating block (13).

6. The anti-weed entanglement lawn mower according to claim 4, characterized in that: The anti-entanglement device comprises an anti-entanglement plate (15) and a protective tube (16); the anti-entanglement plate (15) is fixedly installed at the bottom of the second placement plate (11), and the protective tube (16) is fixedly installed at the center point of the bottom of the second placement plate (11).

7. The anti-weed entanglement lawn mower according to claim 6, characterized in that: Four anti-entanglement plates (15) are provided, and the top ends of the four anti-entanglement plates (15) are respectively fixedly mounted on the four edges of the bottom of the second placement plate (11), and the four anti-entanglement plates (15) are all mounted on the second placement plate (11) at an inclination of thirty degrees, and the movable end of the motor (12) is located inside the protective tube (16).

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