Weeding machine tool bit capable of adjusting cutting height

Abstract

The utility model discloses a weeding machine tool bit capable of adjusting the cutting height, and belongs to the field of weeding machines. The weeding machine tool bit capable of adjusting the cutting height comprises a connecting pipe, a connecting piece is arranged at one end of the connecting pipe, a rotating motor is arranged at the lower end of the connecting piece, a connecting rod is arranged on the outer surface of the rotating motor, the weeding machine tool bit further comprises a mounting base, and the mounting base is arranged at one end of the connecting rod. A fixing block is arranged at the lower end of the mounting base, and a connecting sleeve is arranged on the fixing block. The weeding machine solves the problems that an existing weeding machine conducts weeding work through a blade, but the blade rotates at a high speed when the weeding machine works, and if the blade collides with broken stones in grass, the blade can fly out at a high speed, and potential safety hazards are caused.

Description

Technical Field

[0001] The utility model relates to the field of weeders, in particular to a weeder cutter head with adjustable cutting height. Background Art

[0002] In order to keep the roadside beautiful, the grass on the roadside needs to be cut short to a uniform height; the initial practice was for workers to mow the grass directly with sickles; this method of weeding is slow, labor-intensive for workers, and it is impossible to trim the grass on the roadside to a uniform height, affecting the appearance. Later, workers also used long knives for weeding, but the weeding effect was not ideal. There are many types of lawn mowers in the existing technology, but they can be mainly divided into intelligent lawn mowers and non-intelligent lawn mowers. Intelligent lawn mowers have a high degree of automation, advanced human-computer interaction interfaces, and are easy to operate, but they are very expensive, while non-intelligent lawn mowers require manual operation, and the operation process takes a long time and is less fun;

[0003] Chinese patent publication number CN206061532U discloses a portable weeder with a pesticide spraying function. The weeder comprises a weeding module, a connecting rod, and an auxiliary module. The weeding module includes a weeding blade and a protective cover. The protective cover consists of a base cover and an outer cover. The upper end of the base cover is connected to the connecting rod via a universal shaft. The outer cover is mounted on the lower portion of the base cover and includes an inverted trumpet-shaped upper cover. Several nozzles are mounted on the inner side of the upper cover. A cylindrical telescopic mechanism is evenly distributed on the outer edge of the upper cover. The telescopic mechanism consists of an external adjustment sleeve, an internal adjustment spring, and a fixed knob on one side of the adjustment sleeve. Universal wheels are installed at the lower portion of the telescopic mechanism. A drive motor is mounted below the base cover, and the weeding blade is fixed to the lower portion of the drive motor. The utility model utilizes a telescopic mechanism to adjust the weeding blade, facilitating the cutting of weeds to a uniform height. The design of the nozzle and pesticide storage tank allows for simultaneous spraying of pesticides while cutting weeds, saving considerable time.

[0004] The lawn mower of the above patent uses blades to remove weeds, but the blades rotate at high speed when the lawn mower is working. If the blades hit gravel in the grass, the blades may fly out at high speed, causing a safety hazard. Utility Model Content

[0005] The purpose of the utility model is to provide a weeder blade head with adjustable cutting height, which is achieved by providing a connecting rod on the housing of a rotating motor, a mounting base at one end of the connecting rod, a fixing block at the lower end of the mounting base, a connecting sleeve on the fixing block, and a protective rod at the lower end of the connecting sleeve. The protective rod is connected to the connecting sleeve through a connecting screw, and a rubber gasket is provided on the outer surface of the protective rod. The protective rod is arranged in a circle to surround the blade in the middle. If the blade breaks and flies out, it will hit the protective rod to prevent the blade from flying toward others. There is a gap between the protective rods, and weeds can pass through the gap between the protective rods and be cut by the blade without affecting the normal operation of the weeder, thereby solving the problems raised in the above-mentioned background technology.

[0006] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a lawn mower head with adjustable cutting height, comprising a connecting tube, a connecting plate provided at one end of the connecting tube, a rotating motor provided at the lower end of the connecting plate, a connecting rod provided on the outer surface of the rotating motor, and a mounting base, the mounting base being provided at one end of the connecting rod, a fixing block provided at the lower end of the mounting base, a connecting sleeve provided on the fixing block, a connecting screw provided in the connecting sleeve, a protective rod provided on the connecting screw, a limiting block provided in the middle section of the protective rod, and a rubber gasket provided on the outer surface of the protective rod.

[0007] Preferably, a connecting shaft is provided on the output end of the rotating motor, and the connecting shaft is bolted to the rotating motor.

[0008] Preferably, a blade mounting base is provided on the connecting shaft, and the blade mounting base is welded to the connecting shaft.

[0009] Preferably, a bolt hole is provided on the blade mounting base, and the bolt hole and the blade mounting base are integrally provided.

[0010] Preferably, a blade is provided on the blade mounting base, and the blade is connected to the blade mounting base via bolts.

[0011] Preferably, a fixed base is provided on one end of the connecting pipe away from the connecting piece, and the fixed base is welded to the connecting pipe.

[0012] Preferably, a gripping rod is provided on the fixed base, and the gripping rod is welded to the fixed base.

[0013] Preferably, a stop block is provided on the fixed base, and the stop block is welded to the fixed base.

[0014] Preferably, a shock-absorbing pad is provided on the outer surface of the stop block, and the shock-absorbing pad is adhesively connected to the stop block.

[0015] Compared with the prior art, the beneficial effects of the present invention are as follows:

[0016] The utility model comprises a connecting rod provided on a rotating motor housing, a mounting base provided at one end of the connecting rod, a fixing block provided at the lower end of the mounting base, a connecting sleeve provided on the fixing block, a protective rod provided at the lower end of the connecting sleeve, the protective rod being connected to the connecting sleeve by a connecting screw, a rubber gasket provided on the outer surface of the protective rod, the protective rod being arranged in a circle to surround the blade in the middle, if the blade breaks and flies out, it will hit the protective rod to prevent the blade from flying toward bystanders, and there is a gap between the protective rods, so that weeds can pass through the gap between the protective rods and be cut by the blade, which will not affect the normal operation of the weeder, and effectively avoids the problem that the existing weeder uses the blade to perform weeding work, but the blade rotates at a high speed when the weeder is working. If the blade hits gravel in the grass, the blade may fly out at a high speed to cause a safety hazard. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 This is a schematic diagram of the overall external structure of the utility model;

[0018] Figure 2 This is a schematic diagram of the overall main structure of the utility model;

[0019] Figure 3 This is a schematic diagram of the overall structure of the utility model when viewed from above;

[0020] Figure 4 This is a schematic diagram of the protective rod structure of the present utility model.

[0021] In the figure: 1. Connecting pipe; 2. Connecting plate; 3. Rotating motor; 4. Mounting base; 5. Fixing block; 6. Connecting sleeve; 7. Limiting block; 8. Protective rod; 9. Connecting screw; 10. Connecting rod; 11. Rubber gasket; 12. Fixed base; 13. Grip; 14. Block; 15. Shock-absorbing pad; 16. Connecting shaft; 17. Blade connecting base; 18. Bolt hole; 19. Blade. DETAILED DESCRIPTION

[0022] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the embodiments described are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0023] In order to solve the problem that in the prior art, a lawn mower uses a blade to mow the grass, but the blade rotates at high speed during operation. If the blade hits gravel in the grass, the blade may fly out at high speed, causing a safety hazard, this embodiment provides the following technical solutions:

[0024] A weeder cutter head with adjustable cutting height includes a connecting tube 1, a connecting piece 2 is provided at one end of the connecting tube 1, a rotating motor 3 is provided at the lower end of the connecting piece 2, a connecting rod 10 is provided on the outer surface of the rotating motor 3, and a mounting base 4 is provided. The mounting base 4 is provided at one end of the connecting rod 10, a fixing block 5 is provided at the lower end of the mounting base 4, a connecting sleeve 6 is provided on the fixing block 5, a connecting screw 9 is provided in the connecting sleeve 6, a protective rod 8 is provided on the connecting screw 9, a limiting block 7 is provided in the middle section of the protective rod 8, a rubber gasket 11 is provided on the outer surface of the protective rod 8, a connecting shaft 16 is provided on the output end of the rotating motor 3, the connecting shaft 16 is bolted to the rotating motor 3, and a blade mounting base is provided on the connecting shaft 16. Seat 17, the blade mounting base 17 is welded to the connecting shaft 16, a bolt hole 18 is opened on the blade mounting base 17, the bolt hole 18 and the blade mounting base 17 are integrated, a blade 19 is provided on the blade mounting base 17, and the blade 19 is connected to the blade mounting base 17 by bolts. The connecting pipe 1 is provided with a fixed base 12 on the end away from the connecting piece 2, and the fixed base 12 is welded to the connecting pipe 1. A grip rod 13 is provided on the fixed base 12, and the grip rod 13 is welded to the fixed base 12. A stop block 14 is provided on the fixed base 12, and the stop block 14 is welded to the fixed base 12. A shock-absorbing pad 15 is provided on the outer surface of the stop block 14, and the shock-absorbing pad 15 is adhesively connected to the stop block 14;

[0025] In this embodiment, please refer to Figure 1-Figure 4 The staff holds the handle 13 and presses the block 14 against the waist. The shock-absorbing pad 15 provided on the block 14 can effectively reduce the vibration caused by the rotation of the blade when the lawn mower is working, and the rotating motor 3 starts to drive the connecting shaft 16 to rotate, and the connecting shaft 16 starts to drive the blade 19 to rotate to perform weeding. If you want to adjust the height of the blade 19 according to the height of the weeds, you only need to loosen the bolts between the blade 19 and the blade connecting base 17, and install the blade 19 on the blade connecting base 17 of matching height according to the height of the weeds to adjust the height of the blade 19. The protective rod 8 is arranged in a circle to surround the blade 19 in the middle. If the blade 19 breaks and flies out, it will hit the protective rod 8 to prevent the blade 19 from flying to others. There is a gap between the protective rod 8 and the protective rod 8. The weeds can pass through the gap between the protective rod 8 and be cut by the blade 19, which will not affect the normal operation of the lawn mower.

[0026] Working principle: The staff holds the handle 13 and presses the block 14 against the waist. The shock-absorbing pad 15 provided on the block 14 can effectively reduce the vibration caused by the rotation of the blade when the lawn mower is working, and the rotating motor 3 starts to drive the connecting shaft 16 to rotate, and the connecting shaft 16 starts to drive the blade 19 to rotate to perform weeding. If you want to adjust the height of the blade 19 according to the height of the weeds, you only need to loosen the bolts between the blade 19 and the blade connecting base 17, and install the blade 19 on the blade connecting base 17 of matching height according to the height of the weeds to adjust the height of the blade 19. The protective rod 8 is arranged in a circle to surround the blade 19 in the middle. If the blade 19 breaks and flies out, it will also hit the protective rod 8 to prevent the blade 19 from flying to others. There is a gap between the protective rod 8 and the protective rod 8. The weeds can pass through the gap between the protective rod 8 and be cut by the blade 19, which will not affect the normal operation of the lawn mower.

[0027] It should be noted that, in this document, relational terms such as first and second, etc., are used only to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any actual relationship or order between these entities or operations. Moreover, the terms "comprises," "comprising," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that includes a list of elements includes not only those elements but also other elements not explicitly listed, or elements inherent to such process, method, article, or apparatus.

[0028] Although the embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and variations may be made to these embodiments without departing from the principles and spirit of the present invention, and the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A weeder cutter head with adjustable cutting height, comprising a connecting tube (1), a connecting piece (2) provided at one end of the connecting tube (1), a rotating motor (3) provided at the lower end of the connecting piece (2), and a connecting rod (10) provided on the outer surface of the rotating motor (3); Its characteristics are: The invention also includes a mounting base (4), wherein the mounting base (4) is arranged at one end of the connecting rod (10), a fixing block (5) is arranged at the lower end of the mounting base (4), a connecting sleeve (6) is arranged on the fixing block (5), a connecting screw (9) is arranged in the connecting sleeve (6), a protective rod (8) is arranged on the connecting screw (9), a limiting block (7) is arranged in the middle section of the protective rod (8), and a rubber gasket (11) is arranged on the outer surface of the protective rod (8).

2. The weeder cutter head with adjustable cutting height according to claim 1, characterized in that: A connecting shaft (16) is provided on the output end of the rotating motor (3), and the connecting shaft (16) is bolted to the rotating motor (3).

3. The weeder cutter head with adjustable cutting height according to claim 2, characterized in that: A blade mounting base (17) is provided on the connecting shaft (16), and the blade mounting base (17) is welded to the connecting shaft (16).

4. The weeder cutter head with adjustable cutting height according to claim 3, characterized in that: The blade mounting base (17) is provided with a bolt hole (18), and the bolt hole (18) and the blade mounting base (17) are integrally arranged.

5. The weeder cutter head with adjustable cutting height according to claim 4, characterized in that: A blade (19) is provided on the blade mounting base (17), and the blade (19) is connected to the blade mounting base (17) via bolts.

6. The weeder cutter head with adjustable cutting height according to claim 1, characterized in that: The connecting pipe (1) is provided with a fixed base (12) on one end away from the connecting piece (2), and the fixed base (12) is welded to the connecting pipe (1).

7. The weeder cutter head with adjustable cutting height according to claim 6, characterized in that: A gripping rod (13) is provided on the fixed base (12), and the gripping rod (13) is welded to the fixed base (12).

8. The weeder cutter head with adjustable cutting height according to claim 7, characterized in that: A stop block (14) is provided on the fixed base (12), and the stop block (14) is welded to the fixed base (12).

9. The weeder cutter head with adjustable cutting height according to claim 8, characterized in that: A shock absorbing pad (15) is provided on the outer surface of the stop block (14), and the shock absorbing pad (15) is adhesively connected to the stop block (14).

Images