Grass trimmer capable of quickly replacing grass trimming rope

Abstract

The utility model relates to the technical field of grass trimmers, and discloses a grass trimmer capable of quickly replacing a grass trimming rope, which comprises a grass trimmer body, a grass trimming head box body is fixedly arranged at one end of a driving shaft of a driving motor of the grass trimmer body, and a PLC (programmable logic controller) is arranged in the grass trimming head box body. According to the grass trimmer, the grass trimmer body, the grass trimming head box body, the fixing ring, the driving motor, the rotating ring, the gear and the fixing column are matched for use, so that the effect of replacing the grass trimming rope can be achieved, and when the grass trimming rope is replaced, a rope winding drum does not need to be manually disassembled to wind the grass trimming rope outside the rope winding drum; the rope winding drum can automatically rotate and wind the grass trimming rope, tedious winding operation is avoided, the time for installing the grass trimming rope is shortened, meanwhile, the grass trimming rope does not need to penetrate through the rope outlet hole, only the second limiting plate needs to be extruded so that the grass trimming rope can be limited by the second limiting plate, use is convenient, and practicability is achieved.

Description

Technical Field

[0001] The utility model relates to the technical field of grass trimmers, in particular to a grass trimmer capable of quickly replacing a grass trimmer rope. Background Art

[0002] A lawn mower is a handheld tool used to cut weeds in lawns, gardens, pastures, etc. It can be divided into oil-powered and electric-powered according to the power source; it can be divided into front-powered and rear-powered according to the power head structure, with the motor as the supporting power.

[0003] In the prior art, when replacing the grass trimmer rope of the grass trimmer, it is necessary to remove the cover plate of the grass trimmer head box body, take out the winding drum from the inside of the grass trimmer head, and then wind a certain length of grass trimmer rope into the groove of the winding drum, and then install the winding drum back, pass the two ends of the grass trimmer rope through the two outlets on the outside of the grass trimmer head box body, cover the cover plate and use it. However, the above operation process is relatively cumbersome, and it is difficult to quickly reel in the grass trimmer rope and pass it through the outlet. Therefore, a grass trimmer with a quick replacement of the grass trimmer rope is urgently needed to solve the above problem. Utility Model Content

[0004] The utility model aims to solve the shortcomings in the prior art and provides a mower with a mowing rope that can be quickly replaced.

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

[0006] A mower for quickly replacing a mowing rope comprises a mower body, a mowing head box body is fixedly mounted on one end of a driving shaft of a driving motor of the mower body, a PLC controller is arranged inside the mowing head box body, and a replacement component is also included. The replacement component is arranged on one side of the interior of the mowing head box body and is used for replacing the mowing rope. The replacement component comprises: a fixing ring, and the fixing ring is fixedly mounted on one side of the interior of the mowing head box body.

[0007] As a further solution of the utility model, the replacement component also includes: the inner circular wall surface of the fixed ring is fixedly sleeved with a driving motor, one end of the driving motor is fixedly installed with a battery, one side of the battery is fixedly installed with the PLC controller, the battery is electrically connected to the PLC controller, and the driving motor is electrically connected to the battery; the outer circular wall surface of the fixed ring is movably sleeved with a rotating ring, a plurality of fixed columns are fixedly installed on one side of the inner side of the rotating ring, and a plurality of gears are movably sleeved on the outer circular wall surface of the fixed column, and a plurality of the gears are meshed with the driving gears of the driving motor; a plurality of first limit plates are fixedly installed at one end of the rotating ring, and the interior of the grass trimmer head box body is provided with A rope winding drum, the rope winding drum is movably connected with the rotating ring, the inner circular wall surface of the rope winding drum is fixedly connected with a fixing plate, one side of the fixing plate is provided with a plurality of tooth grooves, one end of the rotating ring is fixedly installed with a pressure sensor, the pressure sensor is electrically connected to the PLC controller, the outer circular wall surface of the rope winding drum is provided with a fixing groove, one side of the grass trimming head box body is provided with a box cover, one side of the box cover is fixedly installed with two first clamping plates, the outer circular wall surface of the grass trimming head box body is provided with two limiting holes, the limiting holes are clamped with the first clamping plate, the outer circular wall surface of the grass trimming head box body is provided with two rope outlet holes, and a plurality of second springs are fixedly installed on one side of the inner side of the grass trimming head box body.

[0008] As a further solution of the utility model, a plurality of limit bins are fixedly installed on the inner circular wall surface of the grass trimmer head box body, a second limit plate is movably sleeved on the inner circular wall surface of the limit bin, a plurality of first springs are fixedly installed on the bottom surface of the second limit plate, and the first springs are fixedly installed on the inner bottom surface of the limit bin.

[0009] As a further solution of the utility model, a plurality of second clamping plates are fixedly installed on one side of the rope drum, a plurality of limiting grooves are opened on one side of the box cover, the limiting grooves are movably connected with the second clamping plates, and a rotating plate is fixedly installed on one side of the rope drum, and the rotating plate is movably connected with the box cover.

[0010] As a further solution of the utility model, a handle is fixedly mounted on the outer circular wall surface of the hand-held rod of the grass trimmer body.

[0011] As a further solution of the utility model, a baffle is fixedly mounted on the outer circular wall surface of the hand-held rod of the grass trimmer body.

[0012] As a further solution of the utility model, lubricating oil is coated between a plurality of the gears and the driving gear of the driving motor.

[0013] Compared with the prior art, the utility model has the following beneficial effects:

[0014] 1. By using the mower body, mower head box, fixing ring, driving motor, rotating ring, gear and fixing column in coordination with each other, the mower rope can be replaced, so that when replacing the mower rope, there is no need to manually remove the rope drum and wind the mower rope around the outside of the rope drum. The rope drum can rotate and wind up the mower rope by itself, avoiding cumbersome winding operations and reducing the time for installing the mower rope. At the same time, there is no need to pass the mower rope through the rope outlet hole. It is only necessary to squeeze the second limit plate so that the second limit plate can limit the mower rope, which is convenient to use and more practical.

[0015] 2. By setting the rope drum, the second clamping plate, the limit groove, the second clamping plate and the rope drum for mutual use, the effect of preventing the rope drum from rotating when the grass trimmer head box body rotates can be achieved. By setting the grass trimmer body, the grass trimmer head box body, the fixed ring, the drive motor, the rotating ring and the gear for mutual use, the effect of releasing the grass trimmer rope can be achieved. After the grass trimmer rope is consumed, it can be released from the inside of the grass trimmer head box body. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 This is a schematic diagram of the overall structure of a mower for quickly replacing a mowing rope proposed by the utility model;

[0017] Figure 2 This is a schematic diagram of the structure of a mowing head box body of a mowing machine for quickly replacing a mowing rope proposed by the utility model;

[0018] Figure 3 This is a schematic diagram of the first limit plate structure of a mower for quickly replacing a mowing rope proposed by the utility model;

[0019] Figure 4 The utility model discloses a schematic diagram of a fixed column structure of a mower for quickly replacing a mowing rope.

[0020] In the figure: 1. lawn mower body; 2. lawn mower head box; 3. fixing ring; 4. driving motor; 5. rotating ring; 6. gear; 7. fixing column; 8. first limit plate; 9. rope drum; 10. fixing plate; 11. tooth groove; 12. pressure sensor; 13. fixing groove; 14. box cover; 15. first clamping plate; 16. limit hole; 17. rope outlet hole; 18. second spring; 19. limit bin; 20. second limit plate; 21. first spring; 22. second clamping plate; 23. rotating plate; 24. battery; 25. limit groove; 26. handle; 27. baffle. DETAILED DESCRIPTION

[0021] In order to make the technical means, creative features, objectives and effects achieved by the present invention easy to understand, the present invention is further described below in conjunction with specific implementation methods.

[0022] In the description of the present invention, it should be noted that the terms "upper", "lower", "inner", "outer", "front end", "rear end", "two ends", "one end", "the other end" and the like indicate positions or positional relationships based on the positions or positional relationships shown in the drawings, and are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operate in a specific orientation, and therefore cannot be understood as a limitation on the present invention. In addition, the terms "first" and "second" are used for descriptive purposes only and cannot be understood as indicating or implying relative importance.

[0023] In the description of the present invention, it should be noted that, unless otherwise clearly specified and limited, the terms "installed", "provided with", "connected", etc. should be understood in a broad sense. For example, "connected" can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or it can be an indirect connection through an intermediate medium, or it can be the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0024] Reference Figure 1-Figure 4A grass trimmer for quickly replacing grass trimming ropes comprises a grass trimmer body 1, a grass trimmer head box body 2 is fixedly installed on one end of the driving shaft of the driving motor of the grass trimmer body 1, a PLC controller is arranged inside the grass trimmer head box body 2, and a replacement component is arranged on one side of the inner part of the grass trimmer head box body 2 for replacing the grass trimming rope, and the replacement component comprises: a fixed ring 3, the fixed ring 3 is fixedly installed on one side of the inner part of the grass trimmer head box body 2, a driving motor 4 is fixedly sleeved on the inner circumferential wall surface of the fixed ring 3, a battery 24 is fixedly installed on one end of the driving motor 4, one side of the battery 24 is fixedly installed with the PLC controller, the battery 24 is electrically connected to the PLC controller, and the driving motor 4 is electrically connected to the battery 24, a rotating ring 5 is movably sleeved on the outer circumferential wall surface of the fixed ring 3, a limiting groove is arranged on the outer circumferential wall surface of the fixed ring 3, and the cross section of the rotating ring 5 is L-shaped, and the limiting groove on the outer circumferential wall surface of the fixed ring 3 prevents the rotating ring 5 from slipping off from the outside, and a plurality of fixing columns 7 are fixedly installed on one side of the inner part of the rotating ring 5, The outer circumferential wall surface of the fixed column 7 is movably sleeved with a gear 6, and the plurality of gears 6 are all meshed with the driving gear of the driving motor 4. A plurality of first limit plates 8 are fixedly installed at one end of the rotating ring 5. A rope drum 9 is arranged inside the grass cutting head box body 2, and the rope drum 9 is movably sleeved with the rotating ring 5. A fixed plate 10 is fixedly sleeved on the inner circumferential wall surface of the rope drum 9, and a plurality of tooth grooves 11 are provided on one side of the fixed plate 10. A pressure sensor 12 is fixedly installed at one end of the rotating ring 5. The pressure sensor 1 2 is electrically connected to the PLC controller, a fixing groove 13 is provided on the outer circumferential wall of the rope drum 9, a box cover 14 is provided on one side of the grass trimming head box body 2, two first clamping plates 15 are fixedly installed on one side of the box cover 14, two limiting holes 16 are provided on the outer circumferential wall of the grass trimming head box body 2, the limiting holes 16 are clamped with the first clamping plates 15, two rope outlet holes 17 are provided on the outer circumferential wall of the grass trimming head box body 2, and a plurality of second springs 18 are fixedly installed on one side of the inner side of the grass trimming head box body 2.

[0025] In this embodiment, a plurality of limit bins 19 are fixedly installed on the inner circular wall surface of the grass trimmer head box body 2, and a second limit plate 20 is movably sleeved on the inner circular wall surface of the limit bin 19. A plurality of first springs 21 are fixedly installed on the bottom surface of the second limit plate 20, and the first spring 21 is fixedly installed on the inner bottom surface of the limit bin 19. A plurality of second clamping plates 22 are fixedly installed on one side of the rope drum 9, and a plurality of limit grooves 25 are provided on one side of the box cover 14, and the limit grooves 25 are movably sleeved on the second clamping plate 22. A rotating plate 23 is fixedly installed on one side of the rope drum 9, and the rotating plate 23 is movably sleeved on the box cover 14. A handle 26 is fixedly installed on the outer circular wall surface of the hand-held rod of the grass trimmer body 1, and a baffle 27 is fixedly installed on the outer circular wall surface of the hand-held rod of the grass trimmer body 1. Lubricating oil is coated between a plurality of gears 6 and the driving gear of the driving motor 4.

[0026] By setting the second clamping plate 22, when the grass cutting rope is consumed during use and the grass cutting rope wrapped around the outside of the rope drum 9 needs to be released, the rope winding drum 9 can be rotated to release the rope by pressing and rotating the rotating plate 23. Then, the reset rope winding drum 9 drives the second clamping plate 22 to enter the inside of the limiting groove 25. The limiting groove 25 limits the second clamping plate 22 and the rope winding drum 9 to prevent the rope winding drum 9 from rotating when the grass cutting head box body 2 rotates. By setting the rotating plate 23, after the grass cutting rope is consumed, the rotating plate 23 can be pressed and rotated to make the rope winding drum 9 rotate and release the line, thereby pulling the grass cutting rope to release it from the inside of the grass cutting head box body 2, so that the grass cutting operation can continue.

[0027] From the above description, it can be seen that the above-mentioned embodiment of the utility model achieves the following technical effects: through the provision of the grass trimmer body 1, when the user's grass trimmer rope is exhausted and needs to be replaced, the grass trimmer body 1 is stopped through the provision of the grass trimmer head box body 2, and then the grass trimmer head box body 2 is held by hand, and the two first clamping plates 15 are pressed so that the bend moves out from the inside of the limiting hole 16, so that the limiting hole 16 and the first clamping plate 15 are no longer clamped, and then the box cover 14 is pulled to move and drive the first clamping plate 15 to move so that the box cover 14 can be removed, and then the old shorter grass trimmer rope is removed from the outside of the rope drum 9, and the grass trimmer rope of about 4 meters of the driving motor is folded in half, so that the bent part is placed in the inside of the fixed groove 13 and the rotating plate 23 is grasped by hand to avoid winding. The rope drum 9 rotates, and then the rotating plate 23 is pressed twice quickly. At this time, pressing the rotating plate 23 drives the rope drum 9 and the fixed plate 10 to move toward the inside of the grass trimming head box body 2. The moving rope drum 9 squeezes and compresses the second spring 18, and the moving fixed plate 10 squeezes the pressure sensor 12. The pressure sensor 12 detects two short pressures, and then the drive motor 4 is started by the PLC controller to drive the several gears 6 to rotate. The gear 6 rotates itself and drives the rotating ring 5 to rotate outside the fixed ring 3. Then, the rotating rotating ring 5 drives the several first limit plates 8 to rotate. At this time, the rotating plate 23 is pressed for a long time again to make the rope drum 9 drive the fixed plate 10 to move so that the tooth groove 11 is engaged with the several first limit plates 8. Thereby, the engaged fixed plate 10 drives the rope winding drum 9 to rotate, and the rotating rope winding drum 9 drives the grass cutting rope inside the fixed groove 13 to be wound, so that the folded grass cutting rope is respectively wound in the two grooves inside the rope winding drum 9. Then, when there is about 10 cm of grass cutting rope left on the fixed plate, stop pressing the rotating plate 23 and quickly press the rotating plate 23 twice to stop the rotation of the driving motor 4, and then pull the two ends of the grass cutting rope so that the two ends enter the rope outlet hole 17 respectively. At this time, the grass cutting rope squeezes and pushes one side of the inclined surface of the second limiting plate 20, so that the second limiting plate 20 shrinks into the limiting bin 19, so that after the grass cutting rope enters the bottom of the rope outlet hole 17, the second limiting plate 20 pops out under the push of the first spring 21 to match the grass cutting rope. The rope 14 is limited to prevent it from slipping out from the inside of the rope outlet hole 17, and then the box cover 14 is picked up and buckled on one side of the grass trimming head box body 2, so that the first clamping plate 15 enters the inside of the limiting hole 16. The two are clamped to limit and fix the box cover 14, thereby completing the replacement of the grass trimming rope, thereby comprehensively achieving the effect of replacing the grass trimming rope, so that when replacing the grass trimming rope, there is no need to manually remove the rope drum 9 and wind the grass trimming rope around the outside of the rope drum 9. The rope drum 9 can rotate and reel in the grass trimming rope by itself, avoiding cumbersome winding operations and reducing the time for installing the grass trimming rope. At the same time, there is no need to pass the grass trimming rope through the rope outlet hole 17. It is only necessary to squeeze the second limiting plate 20 so that the second limiting plate 20 limits the grass trimming rope, which is convenient to use and more practical.

[0028] The above shows and describes the basic principle and main features of the utility model and the advantages of the utility model. Those skilled in the art should understand that the utility model is not limited by the above embodiments. The above embodiments and descriptions are only for explaining the principle of the utility model. Without departing from the spirit and scope of the utility model, the utility model may have various changes and improvements, which fall within the scope of the utility model to be protected. The scope of protection claimed by the utility model is defined by the attached claims and their equivalents.

Claims

1. A mower for quickly replacing a mowing rope, comprising a mower body (1), a mower head box (2) fixedly mounted on one end of a drive shaft of a drive motor of the mower body (1), a PLC controller disposed inside the mower head box (2), characterized in that: It also includes a replacement component, which is arranged on one side of the interior of the mowing head box body (2) and is used to replace the mowing rope. The replacement component includes: a fixing ring (3), and the fixing ring (3) is fixedly installed on one side of the interior of the mowing head box body (2).

2. A mower for quickly changing mowing ropes according to claim 1, characterized in that: The replacement assembly further comprises: a driving motor (4) is fixedly sleeved on the inner circumferential wall surface of the fixing ring (3); a battery (24) is fixedly mounted on one end of the driving motor (4); one side of the battery (24) is fixedly mounted on the PLC controller; the battery (24) is electrically connected to the PLC controller; the driving motor (4) is electrically connected to the battery (24); a rotating ring (5) is movably sleeved on the outer circumferential wall surface of the fixing ring (3); a plurality of fixing columns (7) are fixedly mounted on one side of the interior of the rotating ring (5); a gear (6) is movably sleeved on the outer circumferential wall surface of the fixing column (7); a plurality of the gears (6) are meshed with the driving gear of the driving motor (4); a plurality of first limit plates (8) are fixedly mounted on one end of the rotating ring (5); a rope drum (9) is arranged inside the grass trimming head box body (2); the rope drum (9) is in contact with the rotating ring (5); The movable ring (5) is movably sleeved, the inner circular wall surface of the rope winding drum (9) is fixedly sleeved with a fixing plate (10), one side of the fixing plate (10) is provided with a plurality of tooth grooves (11), one end of the rotating ring (5) is fixedly mounted with a pressure sensor (12), the pressure sensor (12) is electrically connected to the PLC controller, the outer circular wall surface of the rope winding drum (9) is provided with a fixing groove (13), one side of the grass trimming head box body (2) is provided with a box cover (14), one side of the box cover (14) is fixedly mounted with two first clamping plates (15), the outer circular wall surface of the grass trimming head box body (2) is provided with two limiting holes (16), the limiting holes (16) are clamped with the first clamping plates (15), the outer circular wall surface of the grass trimming head box body (2) is provided with two rope outlet holes (17), and one side of the inner side of the grass trimming head box body (2) is fixedly mounted with a plurality of second springs (18).

3. The mower for quickly changing mowing rope according to claim 1, characterized in that: A plurality of limit bins (19) are fixedly mounted on the inner circular wall surface of the grass trimmer head box body (2); a second limit plate (20) is movably sleeved on the inner circular wall surface of the limit bin (19); a plurality of first springs (21) are fixedly mounted on the bottom surface of the second limit plate (20); and the first springs (21) are fixedly mounted on the inner bottom surface of the limit bin (19).

4. A mower for quickly changing mowing ropes according to claim 2, characterized in that: A plurality of second clamping plates (22) are fixedly mounted on one side of the rope drum (9), a plurality of limiting grooves (25) are opened on one side of the box cover (14), the limiting grooves (25) are movably sleeved with the second clamping plates (22), a rotating plate (23) is fixedly mounted on one side of the rope drum (9), and the rotating plate (23) is movably sleeved with the box cover (14).

5. The mower for quickly changing mowing rope according to claim 1, characterized in that: A handle (26) is fixedly mounted on the outer circular wall surface of the hand-held rod of the grass trimmer body (1).

6. The mower for quickly changing mowing rope according to claim 1, characterized in that: A baffle (27) is fixedly mounted on the outer circular wall surface of the hand-held rod of the grass trimmer body (1).

7. The mower for quickly changing mowing rope according to claim 2, characterized in that: Lubricating oil is coated between the plurality of gears (6) and the driving gear of the driving motor (4).

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